CN101963412A - Solar energy and electric energy combined heat pump system and cooling and heating method - Google Patents

Abstract

Translated fromChinese

本发明公开了一种太阳能与电能联合工作复合式热泵系统及制冷制热方法，热泵系统包括太阳能吸收式热泵单元、中间工作介质循环装置和压缩式热泵单元。太阳能驱动吸收式热泵驱动吸收式热泵单元制取较低温度中间工作介质或较高温度中间工作介质，中间工作介质先经第一热质交换设备承担用户所需要部分全部冷能/热能，再进入压缩式热泵单元的中间换热器换热，通过热泵机组单元再次回收利用中间工作介质所含有的冷能/热能,从而节省压缩式热泵单元的压缩机耗电量。该系统实现低品位可能生能源太阳能高效利用，具有运行稳定可靠、能源利用效率、节能效果好，应用前景广阔。

The invention discloses a combined solar energy and electric energy combined heat pump system and a cooling and heating method. The heat pump system includes a solar energy absorption heat pump unit, an intermediate working medium circulation device and a compression heat pump unit. The solar-driven absorption heat pump drives the absorption heat pump unit to produce a lower-temperature intermediate working medium or a higher-temperature intermediate working medium. The intermediate working medium first passes through the first heat-mass exchange equipment to bear all the cold energy/heat energy required by the user, and then enters The intermediate heat exchanger of the compression heat pump unit exchanges heat, and recycles the cold energy/heat energy contained in the intermediate working medium through the heat pump unit unit, thereby saving the power consumption of the compressor of the compression heat pump unit. The system realizes high-efficiency utilization of low-grade renewable energy solar energy, has stable and reliable operation, energy utilization efficiency, good energy-saving effect, and broad application prospects.

Description

Solar energy and electric energy associated working combined heat pump system and refrigerating and heating method

Technical field

The present invention relates to technical field of heat pumps, relate in particular to absorption heat pump and compression heat pump.

Background technology

The Driven by Solar Energy absorption heat pump is driving force with solar energy, is absorbent with lithium bromide water solution or ammonia spirit, is cold-producing medium with water, ammonia, and energy-conserving and environment-protective are one of better refrigeration modes that replace electrically driven (operated) compression heat pump.Yet the Driven by Solar Energy absorption heat pump exists that occurrence temperature is had relatively high expectations, the auxiliary heating of needs, unit efficiency are low, intensity of sunshine changes shortcomings such as presenting discontinuous operation, limits it and applies.

Electric energy drive compression formula heat pump has advantages such as the user's of satisfying hot-cool demand, continous-stable operation, yet the compression heat pump consumption that electric energy drives is high-grade electric energy, does not have the energy-saving and emission-reduction advantage.In addition, a large amount of uses of the compression heat pump of electric energy driving also cause " electric power peak valley " problem in summer in winter easily.

Summary of the invention

The solar energy and the electric energy associated working combined heat pump system that the purpose of this invention is to provide a kind of low power consumption provide the refrigerating and heating method that adopts this system to realize simultaneously.

For achieving the above object, system of the present invention adopts following technical scheme: a kind of solar energy and electric energy associated working combined heat pump system, comprise being used for and indoor heat-mass exchange equipment of carrying out heat exchange, also comprise solar absorption heat pump unit, middle working media EGR and compression heat pump unit; The solar absorption heat pump unit comprises generator, condenser, evaporimeter and absorber, described generator has solution inlet port, taphole and steam (vapor) outlet, be provided with the spiral heater that is used for the heating of wherein working medium solution in the generator, be connected with the low grade heat energy heater between the import and export of spiral heater, described absorber has refrigerant inlet, the absorber solution inlet port, with the absorber taphole, be equipped with the cooling device that is used for the fluid temperature reduction in it in described condenser and the absorber, described evaporimeter has import, outlet and in establish be serially connected with described in the middle of heat exchange coil on the working media EGR, the steam (vapor) outlet of described generator is serially connected with condenser successively by pipeline, the first throttle parts, first check valve, the taphole of generator inserts the high temperature side passage of solution heat exchanger by pipeline, the downstream pipeline of the high temperature side channel outlet of solution heat exchanger is divided into two-way, lead up to and link to each other with the solution inlet port of absorber through first control valve, another road second control valve converges with the forward outlet of described first check valve again and links to each other with evaporator, evaporimeter 5) outlet links to each other with the refrigerant inlet of absorber, and the absorber taphole of absorber is connected in series solution pump successively by pipeline, insert the solution inlet port of generator behind the low temperature side passage of solution heat exchanger; Described heat-mass exchange equipment is first heat-mass exchange equipment and second heat-mass exchange equipment that is connected the compression heat pump unit of working media EGR in the middle of connecting; Be provided with in-between Intermediate Heat Exchanger between working media EGR and the compression heat pump unit in the middle of described, comprise the middle working media passage of the middle working media EGR of access that can carry out heat exchange mutually and the refrigeration working medium passage of access compression heat pump unit in the described Intermediate Heat Exchanger; The working media EGR comprises circulating pump that the mobile forward by pipeline longshore current body is connected in series successively, is located at heat exchange coil in the described evaporimeter, is located at the middle working media passage in described first heat-mass exchange equipment, the middle working media passage of Intermediate Heat Exchanger in the middle of described; Described compression heat pump unit comprises compressor, four-way change-over valve, outdoor heat exchanger, the refrigeration working medium passage of Intermediate Heat Exchanger, the refrigeration working medium passage of second heat-mass exchange equipment, described exhaust outlet of compressor links to each other with the four-way change-over valve inlet, four-way change-over valve is totally three outlets, respectively with the compressor air suction mouth, a port of the refrigeration working medium passage of second heat-mass exchange equipment, a port of outdoor heat exchanger links to each other, and another port of outdoor heat exchanger is by the refrigeration working medium passage of pipeline and Intermediate Heat Exchanger, second throttle part, another port of refrigeration working medium passage of second heat-mass exchange equipment connects successively.

Cooling device provides the cooling coil of cold for what be provided with respectively in described condenser and the absorber by cooling tower or river, underground water in described condenser and the absorber.

Described low grade heat energy heater is heat cycles pump, solar thermal collector, the auxiliary heater that the port of export from spiral heater is connected in series by pipeline successively to entrance point.

It is lithium bromide water solution or ammonia spirit that described solar absorption heat pump unit adopts working medium solution, working media was water, saline solution or ethylene glycol solution in the middle of the working media EGR adopted in the middle of described, and described compression heat pump unit refrigeration working medium is HFC class or HC class cold-producing medium.

Described first heat-mass exchange equipment is radiant panel, air cooling fin pipe heat exchanger or spray chamber, and described second heat-mass exchange equipment is water-cooled heat exchanger or air-cooled heat exchanger.

Be serially connected with the refrigerant liquid storage tank between described condenser and the first throttle parts, be serially connected with the solution storage tank on the downstream pipeline of the high temperature side channel outlet of described solution heat exchanger, the described pipeline that is divided into two-way is that the exit from described solution storage tank is separated.

Method of the present invention adopts following technical scheme: but solar absorption heat pump unit and the both associated working of compression heat pump unit also can work independently; When solar absorption heat pump unit and the work of compression heat pump unit associations, utilize Driven by Solar Energy absorption heat pump unit to produce middle working media of lower temperature or the middle working media of higher temperature, middle working media is born the required part cold energy/heat energy of user through first heat-mass exchange equipment earlier, enter the first heat exchanger heat exchange of compression heat pump unit again, cold energy/heat energy that working media is contained in the middle of recycling once more by the source pump unit is supplied with the user; When the solar absorption heat pump unit works alone, utilize Driven by Solar Energy absorption heat pump unit to produce middle working media of lower temperature or the middle working media of higher temperature, bear the required whole cold energy/heat energy of user through first heat-mass exchange equipment; When the compression heat pump unit worked alone, the compression heat pump unit provided the user required whole cold energy/heat energy by second heat-mass exchange equipment.

Described solar energy and electric energy associated working combined heat pump system are with refrigeration mode or heating mode work; Be serially connected with the refrigerant liquid storage tank between described condenser and the first throttle parts, be serially connected with the solution storage tank on the downstream pipeline of the high temperature side channel outlet of described solution heat exchanger, the described pipeline that is divided into two-way is that the exit from described solution storage tank is separated; When work with refrigeration mode in Driven by Solar Energy absorption heat pump unit, first control valve is opened, second control valve is closed, during refrigeration mode work, the pyrosol that utilizes solar energy indirect generator to be produced enters the solution storage tank after entering solution heat exchanger and the heat exchange of low temperature side solution, part solution is stored in the solution storage tank, another part solution enters that absorber absorbs the refrigerant vapour of flash-pot and the low solution of the temperature that is cooled, and flows into generator again after sending into solution heat exchanger by solution pump again; In the generator working medium solution be heated the refrigerant vapour that produces become liquid to enter the refrigerant liquid storage tank again through condenser condenses, part liquid refrigerant is stored in the refrigerant liquid storage tank, another part after the first throttle parts are by the throttling step-down, become the cryogenic liquid cold-producing medium enter in evaporimeter and the heat exchange coil in the middle of the working media heat exchange be vaporized into refrigerant vapour, the working media temperature is reduced to below 20 ℃ in the middle of in the heat exchange coil, when first heat-mass exchange equipment undertakes the whole thing the required cold of user side, the compression heat pump unit quits work, only Driven by Solar Energy absorption heat pump and middle working media EGR work, the refrigerating capacity that provides the Driven by Solar Energy absorption heat pump satisfies the chilling requirement requirement of user institute, when first heat-mass exchange equipment and second heat-mass exchange equipment are born the required cold of user side jointly, the Driven by Solar Energy absorption heat pump, all work in middle working media EGR and compression heat pump unit, the Driven by Solar Energy absorption heat pump drives the absorption heat pump unit and produces the middle working media of lower temperature, middle working media is directly born the required part cold energy of user through first heat-mass exchange equipment earlier, enter the first heat exchanger heat exchange of compression heat pump unit again, recycle the cold energy that middle working media is contained once more by the source pump unit, when second heat-mass exchange equipment is independently born the required cold of user side, Driven by Solar Energy absorption heat pump and middle working media EGR all quit work, and the required cold of user is produced in the compression heat pump unit; When heating mode was worked, second control valve was opened, and first control valve is closed; The pyrosol that utilizes solar energy indirect generator to be produced enters the solution storage tank after entering solution heat exchanger and the heat exchange of low temperature side solution, part solution is stored in the solution storage tank, another part solution enters the evaporimeter absorption and is cooled to lower temperature solution from the refrigerant vapour of generator and by middle working media in the heat exchange coil, and lower temperature solution inflow absorber flows into generator after sending into solution heat exchanger by solution pump again; The interior working medium solution of generator is heated the refrigerant vapour that produces and flows through condenser successively, entering evaporimeter behind the refrigerant liquid storage tank is absorbed by the solution from the solution storage tank, absorption process discharges absorption heat and is used to heat middle working media in the heat exchange coil, the working media temperature rises to more than 30 ℃ in the middle of in the heat exchange coil, when first heat-mass exchange equipment undertakes the whole thing the required thermic load of user side, the compression heat pump unit quits work, only Driven by Solar Energy absorption heat pump and middle working media EGR work, the Driven by Solar Energy absorption heat pump provides heating capacity to satisfy the required thermic load requirement of user, when first heat-mass exchange equipment and second heat-mass exchange equipment are born the required thermic load of user side jointly, the Driven by Solar Energy absorption heat pump, all work in middle working media EGR and compression heat pump unit, the Driven by Solar Energy absorption heat pump drives the absorption heat pump unit and produces the middle working media of higher temperature, middle working media is directly born the required portion of hot load of user through first heat-mass exchange equipment earlier, enter the first heat exchanger heat exchange of compression heat pump unit again, recycle the heat energy that middle working media is contained once more by the source pump unit, when second heat-mass exchange equipment is independently born the required thermic load of user side, Driven by Solar Energy absorption heat pump and middle working media EGR all quit work, and the required heat energy of user is produced in the compression heat pump unit.

Effect of the present invention and benefit are that working media is born the required part cold energy/heat energy of user in the middle of utilizing middle working media of Driven by Solar Energy absorption heat pump lower temperature that the unit is produced or higher temperature, and the cold energy that contained of working media/heat energy is supplied with the user in the middle of recycling once more by the source pump unit, thereby realize cold energy/heat energy classification utilization.

Further, be that latent heat or sensible heat store by refrigerant liquid storage tank and solution storage tank are set with conversion of solar energy, with the assurance system in night or cloudy continuous operation.

The also associated working but Driven by Solar Energy absorption heat pump of the present invention and electric energy drive compression formula heat pump can work independently, when solar energy is sufficient, the Driven by Solar Energy absorption heat pump works alone provides cold energy/heat energy can satisfy user's hot-cool demand, and energy-saving effect is best; When solar energy was not too sufficient, Driven by Solar Energy absorption heat pump and electric energy drive compression formula heat pump provided the user required cold energy/heat energy jointly, and energy-saving effect is better; When absorption heat pump can't be worked, electric energy drive compression formula heat pump can independently be born the required cold energy/heat energy of user.This system realizes the efficient utilization of low-grade regenerative resource such as solar energy, has stable and reliable operation, efficiency of energy utilization, good energy-conserving effect, has a extensive future.

Description of drawings

Fig. 1 is the structural principle schematic diagram of the embodiment of heat pump of the present invention.

The specific embodiment

As shown in Figure 1, a kind of embodiment of solar energy of the present invention and electric energy associated working combined heat pump system comprises solar absorption heat pump unit, middle working media EGR and compression heat pump unit three parts.The arrow display direction is the forward that fluid flows among the figure.In this embodiment, it is lithium bromide water solution that described solar absorption heat pump unit adopts working medium solution, and working media was a water in the middle of described middle working media EGR adopted, and described compression heat pump unit refrigeration working medium is a HFC class cold-producing medium.Certainly in other embodiments of the present invention, described solar absorption heat pump unit or employing ammonia spirit are working medium solution, working media EGR or employing saline solution or ethylene glycol solution are middle working media in the middle of described, and described compression heat pump unit or employing HC class cold-producing medium are refrigeration working medium.

Described solar absorption heat pump unit comprises generator 1, condenser 2, refrigerant liquid storage tank 3, first throttle parts 4, the first check valve 8b, evaporimeter 5, absorber 6, solution pump 7, solution heat exchanger 9, solution storage tank 3a, first control valve 8, the second control valve 8a.The structure of the absorber in the solar absorption heat pump unit, generator, condenser, evaporimeter, throttle part and existing absorption type heat pump structure are similar.Described generator 1 is provided with solution inlet port, taphole and steam (vapor) outlet, be provided with in the generator 1 and be used to heat the spiral heater 22 that flows into the working medium solution in the generator 1, be connected with the low grade heat energy heater between the import and export of spiral heater 22, low grade heat energy heater among this embodiment of the present invention is the heat cycles pump 20 that the port of export from spiral heater 22 is connected in series by pipeline successively to entrance point, solar thermal collector 19, auxiliary heater 21, solar thermal collector 19 can be to carrying heating-supplied hot water in the spiral heater 22, the auxiliary heater 21 of combustion gas or fuel oil can provide auxiliary heating when shining upon deficiency.In other embodiments of the present invention, the low grade heat energy heater can only be provided with solar thermal collector and auxiliary heater is not set.Described absorber 6 has refrigerant inlet, absorber solution inlet port and absorber taphole, and wherein the spray thrower of establishing in absorber solution inlet port and the absorber 6 is communicated with.Be provided with in the described evaporimeter 5 be serially connected with described in the middle of heat exchange coil 5a in the working media EGR, evaporimeter 5 has import and outlet, evaporator is communicated with spray thrower in the evaporimeter 5.Be respectively equipped with first cooling coil 17 in described condenser 2 and the absorber 6 and the required cooling water of second cooling coil, 18, two cooling coils is provided by cooling tower, also can effluent water or the water source of lower temperature such as underground water provide.Described first throttle parts 4 can be selected U bend stream valve, manual throttle valve, heating power expansion valve or electric expansion valve.Described solution heat exchanger 9 has the low temperature side passage and the high temperature side passage that can carry out heat exchange mutually.

The steam (vapor) outlet of generator 1 and condenser 2, refrigerant liquid storage tank 3, first throttle parts 4, the first check valve 8b forward import connects successively, the taphole of generator 1 links to each other with the solution inlet port of solution heat exchanger 9 high temperature side passages, the taphole of the high temperature side passage of solution heat exchanger 9 links to each other with solution storage tank 3a, the outlet of solution storage tank 3a is divided into two-way, one the tunnel links to each other with the solution inlet port of absorber 6 through first control valve 8, another road second control valve 8a converges with the outlet of the first check valve 8b forward again and links to each other with evaporimeter 5 imports, the outlet of evaporimeter 5 links to each other with the refrigerant inlet of absorber 6, the absorber taphole of absorber 6 passes through pipeline, solution pump 7 inserts the solution inlet port of the low temperature side passage of solution heat exchanger 9, and the taphole of the low temperature side passage of solution heat exchanger 9 links to each other with the solution inlet port of generator 1.

The working media EGR comprises circulating pump 7a that the mobile forward by pipeline longshore current body is connected in series successively, is located at the heat exchange coil 5a in the described evaporimeter 5, the middle working media passage of first heat-mass exchange equipment 10, the middle working media passage of Intermediate Heat Exchanger 11 in the middle of described.Described Intermediate Heat Exchanger 11 is between middle working media EGR and compression heat pump unit heat-exchanger rig between the two, the middle working media passage that had wherein both comprised working media EGR in the middle of inserting, comprise the refrigeration working medium passage that inserts the compression heat pump unit again, the Intermediate Heat Exchanger 11 in the embodiments of the invention can be selected plate type heat exchanger, double pipe heat exchanger or shell and tube exchanger.First heat-mass exchange equipment 10 is responsible for to room cooling or heat supply, and first heat-mass exchange equipment 10 in the embodiments of the invention is radiant panel, air cooling fin pipe heat exchanger or spray chamber.

Described compression heat pump unit and of the prior art roughly the same with electric energy compressor driven formula air conditioner structure, comprise compressor 15, four-way change-over valve 14, outdoor heat exchanger 16, the refrigeration working medium passage of Intermediate Heat Exchanger 11, the refrigeration working medium passage of second heat-mass exchange equipment 13, compressor 15 exhaust outlets link to each other with four-way change-over valve 14 inlets, four-way change-over valve 14 is totally three outlets, respectively with compressor 15 air entries, a port of the refrigeration working medium passage of second heat-mass exchange equipment 13, a port of outdoor heat exchanger 16 links to each other, and another port of outdoor heat exchanger 16 is by the refrigeration working medium passage of pipeline and Intermediate Heat Exchanger 11, second throttle part 12, another port of refrigeration working medium passage of second heat-mass exchange equipment 13 connects successively.

Second heat-mass exchange equipment 13 is responsible for to room cooling or heat supply, and first heat-mass exchange equipment 13 in the embodiments of the invention is water-cooled heat exchanger or air-cooled heat exchanger.Described second throttle part 12 can be selected capillary, heating power expansion valve or electric expansion valve commonly used in the prior art.Outdoor heat exchanger 16 is responsible for and the external environment heat exchange, and the outdoor heat exchanger 16 in the embodiments of the invention can be selected air-cooled hot heat exchange or water-cooled heat exchanger commonly used in the prior art.

But solar absorption heat pump unit in the above embodiment of the present invention and the both associated working of compression heat pump unit also can work independently; When solar absorption heat pump unit and the work of compression heat pump unit associations, utilize Driven by Solar Energy absorption heat pump unit to produce middle working media of lower temperature or the middle working media of higher temperature, middle working media is born the needed part cold energy/heat energy of user through first heat-mass exchange equipment earlier, enter the refrigeration working medium heat exchange in Intermediate Heat Exchanger and the compression heat pump unit again, cold energy/heat energy that working media is contained in the middle of recycling once more by the source pump unit is supplied with the user; When the solar absorption heat pump unit works alone, utilize Driven by Solar Energy absorption heat pump unit to produce middle working media of lower temperature or the middle working media of higher temperature, bear the required whole cold energy/heat energy of user through first heat-mass exchange equipment; When the compression heat pump unit worked alone, the compression heat pump unit provided the user required whole cold energy/heat energy by second heat-mass exchange equipment.

Refrigerant liquid storage tank in the foregoing description among the present invention and solution storage tank are that/heat cold in order to store uses for no sunshine situation, certainly also refrigerant liquid storage tank and solution storage tank can be set in other embodiments of the invention, use the absorption heat pump back work under the sunlight conditions and such embodiment only is set at having, also can realize energy-saving and cost-reducing purpose to a certain extent.

The embodiment of the refrigerating and heating method of solar energy of the present invention and electric energy associated working combined heat pump system, adopt the embodiment of above-mentioned solar energy and electric energy associated working combined heat pump system to work under refrigeration mode or heating mode and realize:

When work with refrigeration mode in Driven by Solar Energy absorption heat pump unit, first control valve 8 is opened, the second control valve 8a closes, during refrigeration mode work, the pyrosol that utilizes solar energy indirect generator 1 to be produced enters solution storage tank 3a after entering solution heat exchange in solution heat exchanger 9 and wherein the low temperature side passage, part solution is stored in solution storage tank 3a, another part solution is through control valve 8, the absorber solution inlet port of absorber 6 enters absorber 6, absorb the refrigerant vapour of flash-pot 5 and be cooled into the lower solution of temperature, after solution pump 7 is sent into solution heat exchanger 9 low temperature side imports, flow into generator 1 by the absorber taphole again again; In the generator 1 working medium solution be heated the refrigerant vapour that produces be condensed into liquid through condenser 2 and enter refrigerant liquid storage tank 3 again, part liquid refrigerant is stored in refrigerant liquid storage tank 3, another part after first throttle parts 4 are by the throttling step-down, become the cryogenic liquid cold-producing medium enter in evaporimeter 5 and the heat exchange coil 5a in the middle of the working media heat exchange be vaporized into refrigerant vapour, refrigerant vapour enters in the absorber 6 through the refrigerant inlet of evaporimeter 5 outlets, absorber 6.The working media temperature is reduced to below 20 ℃ in the middle of in the described heat exchange coil 5a, when first heat-mass exchange equipment 10 undertakes the whole thing the required cold of user side, the compression heat pump unit quits work, only Driven by Solar Energy absorption heat pump and middle working media EGR work, the refrigerating capacity that provides the Driven by Solar Energy absorption heat pump satisfies the chilling requirement requirement of user institute, when first heat-mass exchange equipment 10 and second heat-mass exchange equipment 13 are born the required cold of user side jointly, the Driven by Solar Energy absorption heat pump, all work in middle working media EGR and compression heat pump unit, the Driven by Solar Energy absorption heat pump drives the absorption heat pump unit and produces the middle working media of lower temperature, middle working media is directly born the required part cold energy of user through first heat-mass exchange equipment 10 earlier, enter Intermediate Heat Exchanger 11 heat exchange of compression heat pump unit again, recycle the cold energy that middle working media is contained once more by the source pump unit, when second heat-mass exchange equipment 13 is independently born the required cold of user side, Driven by Solar Energy absorption heat pump and middle working media EGR all quit work, and the required cold of user is produced in the compression heat pump unit.

When work with heating mode in Driven by Solar Energy absorption heat pump unit, the second control valve 8a opens, and first control valve 8 is closed; The pyrosol that utilizes solar energy indirect generator 1 to be produced enters solution storage tank 3a after entering solution heat exchanger 9 and the heat exchange of low temperature side solution, part solution is stored in solution storage tank 3a, another part solution through pipeline and control valve 8a enter evaporimeter 5 absorb from the refrigerant vapour of generator 1 and in the middle of in by heat exchange coil 5a working media be cooled to lower temperature solution, lower temperature solution inflow absorber 6 flows into generator 1 after sending into solution heat exchanger 9 by solution pump 7 again; Generator 1 interior working medium solution is heated the refrigerant vapour that produces and flows through condenser (frozen-free process) successively, entering evaporimeter 5 behind the refrigerant liquid storage tank 3 is absorbed by the solution from solution storage tank 3a, absorption process discharges absorption heat and is used to heat middle working media in the heat exchange coil 5a, the working media temperature rises to more than 30 ℃ in the middle of in the heat exchange coil 5a, when first heat-mass exchange equipment 10 undertakes the whole thing the required thermic load of user side, the compression heat pump unit quits work, only Driven by Solar Energy absorption heat pump and middle working media EGR work, the Driven by Solar Energy absorption heat pump provides heating capacity to satisfy the required thermic load requirement of user, when first heat-mass exchange equipment 10 and second heat-mass exchange equipment 13 are born the required thermic load of user side jointly, the Driven by Solar Energy absorption heat pump, all work in middle working media EGR and compression heat pump unit, the Driven by Solar Energy absorption heat pump drives the absorption heat pump unit and produces the middle working media of higher temperature, middle working media is directly born the required portion of hot load of user through first heat-mass exchange equipment 10 earlier, enter Intermediate Heat Exchanger 11 heat exchange of compression heat pump unit again, recycle the heat energy that middle working media is contained once more by the source pump unit, when second heat-mass exchange equipment is independently born the required thermic load of user side, Driven by Solar Energy absorption heat pump and middle working media EGR all quit work, and the required heat energy of user is produced in the compression heat pump unit.

Described refrigerant liquid storage tank 3 is arranged between condenser 2 and the first throttle parts 4 in order to the storaging liquid cold-producing medium, described solution storage tank 3a is arranged between high temperature side taphole, first control valve 8 and the second control valve 8a of solution heat exchanger 9 and is used for storage solutions, refrigerant liquid storage tank and solution storage tank are that latent heat or sensible heat store on the daytime that sunlight is arranged with conversion of solar energy, with the assurance system in night or cloudy continuous operation.When night or when cloudy day illumination is all the time penetrated and absorption heat pump is worked with refrigeration mode, refrigerant liquid storage tank 3 inner refrigerants after 4 throttlings of first throttle parts, enter in the evaporimeter 5 with heat exchange coil 5a in the middle of working media heat exchange and be vaporizated into refrigerant vapour, enter absorber 6 again and absorbed from the solution in the solution storage tank 3a, the solution after being cooled in the absorber 6 is sent solution storage tank 3a back to again through solution pump 7; When night or when cloudy day illumination is all the time penetrated and absorption heat pump is worked with heat supply mode, working media heat exchange in the middle of the higher solution of temperature in the solution storage tank 3a is sent in evaporimeter 5 and the heat exchange coil 5a by solution pump 7, solution temperature descends, and middle working media temperature raises.

Claims (8)

Translated fromChinese

1.一种太阳能与电能联合工作复合式热泵系统，包括用于与室内进行热交换的热质交换设备，其特征在于：还包括太阳能吸收式热泵单元、中间工作介质循环装置和压缩式热泵单元；太阳能吸收式热泵单元包括发生器（1）、冷凝器（2）、蒸发器（5）和吸收器（6），所述发生器（1）具有溶液进口、溶液出口和蒸汽出口，发生器（1）内设有用于对其中的工质溶液加热的盘管加热器（22），盘管加热器（22）的进出口之间连接有低品位热能加热装置，所述吸收器（6）具有制冷剂进口、吸收器溶液进口、和吸收器溶液出口，所述冷凝器和吸收器内均设有用于对其内的流体降温的冷却装置，所述蒸发器（5）具有进口、出口及其内设的串接于所述中间工作介质循环装置上的换热盘管（5a），所述发生器（1）的蒸汽出口通过管道依次串接有冷凝器（2）、第一节流部件（4）、第一单向阀（8b），发生器（1）的溶液出口通过管道接入溶液热交换器（9）的高温侧通道，溶液热交换器（9）的高温侧通道出口的下游管路被分为两路，一路通过经第一控制阀（8）与吸收器（6）的溶液进口相连，另一路经第二控制阀（8a）与所述第一单向阀（8b）的正向出口汇合再与蒸发器（5）进口相连，蒸发器（5）的出口与吸收器（6）的制冷剂进口相连，吸收器（6）的吸收器溶液出口通过管道依次串接溶液泵（7）、溶液热交换器（9）的低温侧通道后接入发生器（1）的溶液进口；所述的热质交换设备为连接中间工作介质循环装置的第一热质交换设备（10）和连接压缩式热泵单元的第二热质交换设备（13）；所述中间工作介质循环装置和压缩式热泵单元之间设有介于两者间的中间换热器（11），所述中间换热器（11）中包含可相互进行热交换的接入中间工作介质循环装置的中间工作介质通道和接入压缩式热泵单元的制冷工质通道；所述中间工作介质循环装置包括通过管道沿流体的流动正向依次串接的循环泵（7a）、设于所述蒸发器（5）内的换热盘管（5a）、设于所述第一热质交换设备（10）中的中间工作介质通道、中间换热器（11）的中间工作介质通道；所述压缩式热泵单元包括压缩机（15）、四通换向阀（14）、室外换热器（16）、中间换热器（11）的制冷工质通道、第二热质交换设备（13）的制冷工质通道，所述压缩机（15）排气口与四通换向阀（14）入口相连，四通换向阀（14）共三个出口，分别与压缩机（15）吸气口、第二热质交换设备（13）的制冷工质通道的一个端口、室外换热器（16）的一个端口相连，室外换热器（16）的另一个端口通过管道与中间换热器（11）的制冷工质通道、第二节流部件（12）、第二热质交换设备（13）的制冷工质通道另一个端口依次连接。1. A composite heat pump system with combined work of solar energy and electric energy, including heat and mass exchange equipment for heat exchange with the room, characterized in that: it also includes a solar absorption heat pump unit, an intermediate working medium circulation device and a compression heat pump unit ; The solar absorption heat pump unit includes a generator (1), a condenser (2), an evaporator (5) and an absorber (6), the generator (1) has a solution inlet, a solution outlet and a steam outlet, and the generator (1) There is a coil heater (22) for heating the working medium solution inside, and a low-grade thermal energy heating device is connected between the inlet and outlet of the coil heater (22), and the absorber (6) It has a refrigerant inlet, an absorber solution inlet, and an absorber solution outlet. Both the condenser and the absorber are equipped with a cooling device for cooling the fluid inside. The evaporator (5) has an inlet, an outlet and an outlet. The built-in heat exchange coil (5a) is connected in series to the intermediate working medium circulation device, and the steam outlet of the generator (1) is connected in series with a condenser (2), a first throttle Component (4), the first one-way valve (8b), the solution outlet of the generator (1) is connected to the high temperature side channel of the solution heat exchanger (9) through the pipeline, and the high temperature side channel outlet of the solution heat exchanger (9) The downstream pipeline is divided into two paths, one path is connected with the solution inlet of the absorber (6) through the first control valve (8), and the other path is connected with the first one-way valve ( The positive outlets of 8b) are converging and then connected to the inlet of the evaporator (5), the outlet of the evaporator (5) is connected to the refrigerant inlet of the absorber (6), and the outlet of the absorber solution of the absorber (6) is connected in series through pipelines Connect the solution pump (7) and the low-temperature side channel of the solution heat exchanger (9) to the solution inlet of the generator (1); the heat and mass exchange equipment is the first heat and mass exchange connected to the intermediate working medium circulation device The equipment (10) and the second heat and mass exchange equipment (13) connected to the compression heat pump unit; the intermediate working medium circulation device and the compression heat pump unit are provided with an intermediate heat exchanger (11) between the two , the intermediate heat exchanger (11) includes an intermediate working medium channel connected to the intermediate working medium circulation device and a refrigerant channel connected to the compression heat pump unit that can exchange heat with each other; the intermediate working medium circulation device It includes a circulating pump (7a) connected in series along the forward direction of the fluid flow through the pipeline, a heat exchange coil (5a) arranged in the evaporator (5), and a heat exchange coil (5a) arranged in the first heat and mass exchange device (10 ) in the intermediate working medium channel, the intermediate working medium channel of the intermediate heat exchanger (11); the compression heat pump unit includes a compressor (15), a four-way reversing valve (14), an outdoor heat exchanger (16) , the refrigerant channel of the intermediate heat exchanger (11), the refrigerant channel of the second heat and mass exchange device (13), and the exhaust port of the compressor (15) is connected to the inlet of the four-way reversing valve (14) , the four-way reversing valve (14) has three outlets in total, which are respectively connected to the suction port of the compressor (15) and the refrigerant channel of the second heat and mass exchange device (13). One port is connected to one port of the outdoor heat exchanger (16), and the other port of the outdoor heat exchanger (16) is connected to the refrigerant channel of the intermediate heat exchanger (11) and the second throttling part (12) through pipes. 1. The other port of the refrigerant channel of the second heat and mass exchange device (13) is connected in sequence.2.根据权利要求1所述的太阳能与电能联合工作复合式热泵系统，其特征在于：所述冷凝器和吸收器中冷却装置为所述冷凝器（2）和吸收器（6）内分别设置的由冷却塔或河水、地下水提供冷量的冷却盘管。2. The combined solar and electric energy combined heat pump system according to claim 1, characterized in that: the cooling devices in the condenser and the absorber are respectively provided in the condenser (2) and the absorber (6) The cooling coil provided by the cooling tower or river water or ground water.3.根据权利要求1所述的太阳能与电能联合工作复合式热泵系统，其特征在于：所述的低品位热能加热装置是从盘管加热器（22）的出口端向进口端通过管道依次串接的加热循环泵（20）、太阳能集热器（19）、辅助加热器（21）。3. The combined solar and electric energy combined heat pump system according to claim 1, characterized in that: the low-grade thermal energy heating device is sequentially connected in series from the outlet end to the inlet end of the coil heater (22). Connected heating circulation pump (20), solar heat collector (19), auxiliary heater (21).4.根据权利要求1所述的太阳能与电能联合工作复合式热泵系统，其特征在于：所述太阳能吸收式热泵单元所采用工质溶液为溴化锂水溶液或者氨水溶液，所述中间工作介质循环装置所采用中间工作介质为水、盐水溶液或乙二醇溶液,所述压缩式热泵单元制冷工质为HFC类或HC类制冷剂。4. The combined solar energy and electric energy combined heat pump system according to claim 1, characterized in that: the working medium solution used in the solar absorption heat pump unit is lithium bromide aqueous solution or ammonia aqueous solution, and the intermediate working medium circulation device The intermediate working medium is water, saline solution or ethylene glycol solution, and the refrigeration working medium of the compression heat pump unit is HFC or HC refrigerant.5.根据权利要求1所述的太阳能与电能联合工作复合式热泵系统，其特征在于：所述第一热质交换设备（10）为辐射板、风冷翅片管式换热器或喷淋室，所述第二热质交换设备（13）为水冷式换热器或风冷式换热器。5. The combined solar and electric energy combined heat pump system according to claim 1, characterized in that: the first heat and mass exchange device (10) is a radiant plate, an air-cooled finned tube heat exchanger or a spray chamber, and the second heat and mass exchange device (13) is a water-cooled heat exchanger or an air-cooled heat exchanger.6.据权利要求1～5中任意一项所述的太阳能与电能联合工作复合式热泵系统，其特征在于：所述冷凝器（3）与第一节流部件（4）之间串接有制冷剂液体储罐（3），所述溶液热交换器（9）的高温侧通道出口的下游管路上串接有溶液储罐（3a），所述的被分成两路的管路是从所述溶液储罐（3a）的出口处被分开。6. The combined solar and electric energy combined heat pump system according to any one of claims 1 to 5, characterized in that: there is a series connection between the condenser (3) and the first throttling component (4). The refrigerant liquid storage tank (3), the solution storage tank (3a) is connected in series on the downstream pipeline of the high-temperature side channel outlet of the solution heat exchanger (9), and the pipeline divided into two is from the The outlet of the solution storage tank (3a) is separated.7.如权利要求1所述的太阳能与电能联合工作复合式热泵系统的制冷制热方法，其特征在于：太阳能吸收式热泵单元和压缩式热泵单元既可联合工作，也可独立工作；当太阳能吸收式热泵单元和压缩式热泵单元联合工作时，利用太阳能驱动吸收式热泵单元制取较低温度中间工作介质或较高温度中间工作介质，中间工作介质先经第一热质交换设备承担用户所需要部分冷能/热能，再进入压缩式热泵单元的第一换热器换热，通过热泵机组单元再次回收利用中间工作介质所含有的冷能/热能供给用户；当太阳能吸收式热泵单元独立工作时，利用太阳能驱动吸收式热泵单元制取较低温度中间工作介质或较高温度中间工作介质，经第一热质交换设备承担用户所需要全部冷能/热能；当压缩式热泵单元独立工作时，压缩式热泵单元通过第二热质交换设备提供用户所需要全部冷能/热能。7. The cooling and heating method of the solar energy and electric energy combined work compound heat pump system as claimed in claim 1, characterized in that: the solar absorption heat pump unit and the compression heat pump unit can work together or independently; When the absorption heat pump unit and the compression heat pump unit work together, the absorption heat pump unit is driven by solar energy to produce a lower-temperature intermediate working medium or a higher-temperature intermediate working medium. Part of the cold energy/heat energy is needed, and then enters the first heat exchanger of the compression heat pump unit for heat exchange, and the cold energy/heat energy contained in the intermediate working medium is recycled through the heat pump unit to supply the user; when the solar absorption heat pump unit works independently When using solar energy to drive the absorption heat pump unit to produce a lower-temperature intermediate working medium or a higher-temperature intermediate working medium, the first heat-mass exchange equipment undertakes all the cooling/heating energy required by the user; when the compression heat pump unit works independently , the compression heat pump unit provides all the cooling/heating energy required by the user through the second heat and mass exchange equipment.8.根据权利要求7所述的方法，其特征在于：所述的太阳能与电能联合工作复合式热泵系统以制冷模式或制热模式工作；所述冷凝器（3）与第一节流部件（4）之间串接有制冷剂液体储罐（3），所述溶液热交换器（9）的高温侧通道出口的下游管路上串接有溶液储罐（3a），所述的被分成两路的管路是从所述溶液储罐（3a）的出口处被分开；当太阳能驱动吸收式热泵单元以制冷模式工作时，第一控制阀（8）开启，第二控制阀（8a）关闭，制冷模式工作时，利用太阳能间接加热发生器（1）所产生的高温溶液进入溶液热交换器（9）与低温侧溶液换热后进入溶液储罐（3a），一部分溶液在溶液储罐（3a）内被储存起来，另一部分溶液进入吸收器（6）吸收来自蒸发器（5）的制冷剂蒸汽并被冷却温度较低溶液，再由溶液泵（7）送入溶液热交换器（9）后重新流入发生器（1）；发生器（1）内工质溶液被加热所产生制冷剂蒸汽经冷凝器（2）冷凝成液体再进入制冷剂液体储罐（3），一部分液体制冷剂在制冷剂液体储罐（3）内被储存起来，另一部分经第一节流部件（4）被节流降压后变成低温液体制冷剂进入蒸发器（5）与换热盘管（5a）内中间工作介质换热汽化成制冷剂蒸汽，换热盘管(5a)内中间工作介质温度降至20℃以下，当第一热质交换设备（10）全部承担用户侧所需要冷量时，压缩式热泵单元停止工作，仅太阳能驱动吸收式热泵和中间工作介质循环装置工作，太阳能驱动吸收式热泵提供制冷量满足用户所需冷量要求，当第一热质交换设备（10）和第二热质交换设备（13）共同承担用户侧所需要冷量时，太阳能驱动吸收式热泵、中间工作介质循环装置和压缩式热泵单元均工作，太阳能驱动吸收式热泵驱动吸收式热泵单元制取较低温度中间工作介质，中间工作介质先经第一热质交换设备（10）直接承担用户所需要部分冷能，再进入压缩式热泵单元的第一换热器（11）换热，通过热泵机组单元再次回收利用中间工作介质所含有的冷能, 当第二热质交换设备（13）独立承担用户侧所需要冷量时，太阳能驱动吸收式热泵和中间工作介质循环装置均停止工作，压缩式热泵单元制取用户所需要冷量；当制热模式工作时，第二控制阀（8a）开启，第一控制阀（8）关闭；利用太阳能间接加热发生器（1）所产生的高温溶液进入溶液热交换器（9）与低温侧溶液换热后进入溶液储罐（3a），一部分溶液在溶液储罐（3a）内被储存起来，另一部分溶液进入蒸发器（5）吸收来自发生器（1）的制冷剂蒸汽并被换热盘管（5a）内中间工作介质冷却成较低温度溶液，较低温度溶液流入吸收器（6）由溶液泵（7）送入溶液热交换器（9）后重新流入发生器（1）；发生器（1）内工质溶液被加热所产生制冷剂蒸汽依次流过冷凝器（无冷凝过程）、制冷剂液体储罐（3）后进入蒸发器（5）被来自溶液储罐（3a）的溶液所吸收，吸收过程所释放吸收热被用于加热换热盘管（5a）内中间工作介质，换热盘管（5a）内中间工作介质温度升至30℃以上，当第一热质交换设备（10）全部承担用户侧所需要热负荷时，压缩式热泵单元停止工作，仅太阳能驱动吸收式热泵和中间工作介质循环装置工作，太阳能驱动吸收式热泵提供制热量满足用户所需热负荷要求，当第一热质交换设备（10）和第二热质交换设备（13）共同承担用户侧所需要热负荷时，太阳能驱动吸收式热泵、中间工作介质循环装置和压缩式热泵单元均工作，太阳能驱动吸收式热泵驱动吸收式热泵单元制取较高温度中间工作介质，中间工作介质先经第一热质交换设备（10）直接承担用户所需要部分热负荷，再进入压缩式热泵单元的第一换热器（11）换热，通过热泵机组单元再次回收利用中间工作介质所含有的热能，当第二热质交换设备独立承担用户侧所需要热负荷时，太阳能驱动吸收式热泵和中间工作介质循环装置均停止工作，压缩式热泵单元制取用户所需要热能。8. The method according to claim 7, characterized in that: the combined solar and electric energy combined heat pump system works in cooling mode or heating mode; the condenser (3) and the first throttling component ( 4) A refrigerant liquid storage tank (3) is connected in series between them, and a solution storage tank (3a) is connected in series on the downstream pipeline of the high temperature side channel outlet of the solution heat exchanger (9), which is divided into two The pipeline of the pipeline is separated from the outlet of the solution storage tank (3a); when the solar-driven absorption heat pump unit works in cooling mode, the first control valve (8) is opened and the second control valve (8a) is closed , when working in refrigeration mode, the high-temperature solution generated by the solar indirect heating generator (1) enters the solution heat exchanger (9) to exchange heat with the solution on the low-temperature side and then enters the solution storage tank (3a), and a part of the solution is stored in the solution storage tank ( 3a) is stored, another part of the solution enters the absorber (6) to absorb the refrigerant vapor from the evaporator (5) and is cooled to a lower temperature solution, and then sent to the solution heat exchanger (9) by the solution pump (7) ) and re-flows into the generator (1); the refrigerant vapor generated by the heating of the working medium solution in the generator (1) is condensed into a liquid by the condenser (2) and then enters the refrigerant liquid storage tank (3), and a part of the liquid refrigerant It is stored in the refrigerant liquid storage tank (3), and the other part is throttled and depressurized by the first throttling part (4), and then becomes a low-temperature liquid refrigerant, which enters the evaporator (5) and the heat exchange coil (5a) ) in the intermediate working medium is heat-exchanged and vaporized into refrigerant vapor, and the temperature of the intermediate working medium in the heat exchange coil (5a) drops below 20°C. , the compression heat pump unit stops working, only the solar-driven absorption heat pump and the intermediate working medium circulation device work, and the solar-driven absorption heat pump provides cooling capacity to meet the user's cooling capacity requirements. When the first heat and mass exchange equipment (10) and the second When the second heat and mass exchange equipment (13) jointly bears the cooling capacity required by the user side, the solar-driven absorption heat pump, the intermediate working medium circulation device and the compression heat pump unit all work, and the solar-driven absorption heat pump drives the absorption heat pump unit. Low-temperature intermediate working medium, the intermediate working medium first passes through the first heat and mass exchange equipment (10) to directly bear part of the cold energy required by the user, and then enters the first heat exchanger (11) of the compression heat pump unit for heat exchange, and passes through the heat pump unit The unit recycles and utilizes the cold energy contained in the intermediate working medium. When the second heat-mass exchange device (13) independently bears the cooling capacity required by the user side, both the solar-driven absorption heat pump and the intermediate working medium circulation device stop working, and the compression type The heat pump unit produces the cooling capacity required by the user; when the heating mode is working, the second control valve (8a) is opened, and the first control valve (8) is closed; the high-temperature solution generated by the solar indirect heating generator (1) enters The solution heat exchanger (9) exchanges heat with the solution on the low-temperature side and enters the solution storage tank (3a). Part of the solution is stored in the solution storage tank (3a), and the other part of the solution enters the evaporator (5) to absorb the heat from the generator ( 1 ) and is cooled by the intermediate working medium in the heat exchange coil (5a) to a lower temperature solution, the lower temperature solution flows into the absorber (6) and is sent to the solution heat exchanger (9) by the solution pump (7) After that, it flows into the generator (1) again; the refrigerant vapor generated by the heating of the working medium solution in the generator (1) flows through the condenser (no condensation process), the refrigerant liquid storage tank (3) and then enters the evaporator (5 ) is absorbed by the solution from the solution storage tank (3a), and the absorption heat released during the absorption process is used to heat the intermediate working medium in the heat exchange coil (5a), and the temperature of the intermediate working medium in the heat exchange coil (5a) rises to Above 30°C, when the first heat and mass exchange equipment (10) fully bears the heat load required by the user side, the compression heat pump unit stops working, and only the solar energy drives the absorption heat pump and the intermediate working medium circulation device to work, and the solar energy drives the absorption heat pump Provide heating capacity to meet the heat load requirements required by users. When the first heat mass exchange device (10) and the second heat mass exchange device (13) share the heat load required by the user side, the solar energy drives the absorption heat pump and the intermediate working medium Both the circulation device and the compression heat pump unit work, and the solar energy drives the absorption heat pump to drive the absorption heat pump unit to produce a higher temperature intermediate working medium, which first passes through the first heat and mass exchange equipment (10) to directly bear part of the heat required by the user. load, and then enter the first heat exchanger (11) of the compression heat pump unit for heat exchange, and recycle the heat energy contained in the intermediate working medium through the heat pump unit unit, when the second heat and mass exchange equipment independently bears the heat load required by the user side At this time, both the solar-driven absorption heat pump and the intermediate working medium circulation device stop working, and the compression heat pump unit produces the heat energy required by the user.