CN101498518B - Multifunctional ice-storage air-conditioning system and its control method - Google Patents
Multifunctional ice-storage air-conditioning system and its control methodDownload PDFInfo
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- CN101498518B CN101498518BCN2008100052373ACN200810005237ACN101498518BCN 101498518 BCN101498518 BCN 101498518BCN 2008100052373 ACN2008100052373 ACN 2008100052373ACN 200810005237 ACN200810005237 ACN 200810005237ACN 101498518 BCN101498518 BCN 101498518B
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Abstract
Translated fromChinese
Description
Technical field
The present invention relates to refrigeration air-conditioner, heat pump, Teat pump boiler field, relate in particular to and a kind ofly can effectively utilize the multi-functional ice-storage air-conditioning system of time-of-use tariffs and the control method of this system.
Background technology
The ice storage air conditioner technology is to utilize cheap paddy electricity to carry out the ice making accumulation of energy, discharges cold energy for a used power-saving technology of air-conditioning when the peak electricity.Ice storage air conditioner is broadly divided into static ice making and dynamic ice-making two big classes according to ice making method.Wherein static ice making has two kinds of ice-melting modes, and a kind of is outer ice-melting mode, and another kind is interior ice-melting mode.Small-sized ice storage air conditioner unit generally all is to adopt direct fluorine refrigeration ice-reserving and interior ice-melting mode, reaches purpose of energy saving thereby the cold energy that ice-melt discharges is used to improve the degree of supercooling of kind of refrigeration cycle, but not really uses the cold of ice-melt to carry out direct cooling.The ice storage air conditioner unit mostly is to have only simple cold-storage to release cold (for refrigeration) function.The multi-functional machine integrated technology begins developed in recent years, as on August 30th, 2006 disclosed application number be that 200610034853.2 cold accumulating device by ice improves refrigerating efficiency with regard to the degree of supercooling that is to use cold storage capacity to strengthen kind of refrigeration cycle, simultaneously this device according to season difference also with Ice Storage Tank as the accumulation of heat tube, store the heat behind the heat pump cycle.Can realize the switching of ice-reserving, ice-melt refrigeration, conventional refrigeration, heat pump, accumulation of heat and six kinds of operational modes of heat release.But there are following drawback in the air-conditioning system and the control method thereof of this ice cold-storage unit of this use: heating mode is opened simultaneously when actual regenerative operation, can not carry out accumulation of heat in the unit gap of heating, can only store the heat that satisfies behind the indoor heating, the heat storage capacity deficiency in the unit interval; Low temperature environment down operation heat release pattern can cause institute's amount of stored heat to be lost to drawback in the environment by outdoor heat exchanger; Institute's amount of stored heat only can be used for air conditioning and heating, produces the purpose of life with hot water when can't satisfy heat supply or cooling simultaneously.
Summary of the invention
One object of the present invention is at the problems referred to above, and the multi-functional ice-storage air-conditioning system that a kind of energy loss is little, operational efficiency is high is provided.
Another object of the present invention is to provide a kind of control method to above-mentioned multi-functional ice-storage air-conditioning system.
For achieving the above object, the present invention adopts following technical scheme: a kind of multi-functional ice-storage air-conditioning system, comprise compressor, gas-liquid separator, cross valve, outdoor heat exchanger, ice storage cylinder and indoor heat exchanger, described ice storage cylinder is between outdoor heat exchanger and indoor heat exchanger, also comprise in this ice-storage air-conditioning system: a heat exchanger, first group of pipeline of this heat exchanger is connected in series between described outdoor heat exchanger and the ice storage cylinder, and second group of pipeline of heat exchanger is serially connected with between described ice storage cylinder and the indoor heat exchanger; First magnetic valve is parallel to the branch road two ends that described outdoor heat exchanger and heat exchanger first pipeline are constituted; First electric expansion valve and the 6th magnetic valve constitute parallel component, and this parallel component is serially connected with described ice-reserving bucket front end; Second electric expansion valve is serially connected with the indoor heat exchanger front end; Second magnetic valve is parallel to the branch road two ends that are made of described parallel component and ice storage cylinder; And three magnetic valve, wherein the 5th magnetic valve is serially connected with the front end of heat exchanger second pipeline, the 3rd magnetic valve is parallel to the two ends of the branch road that described heat exchanger second pipeline and the 5th magnetic valve that is connected in series constituted, and the 4th magnetic valve is parallel to the branch road two ends that are made of the described indoor heat exchanger and second electric expansion valve.
Be connected in series a composite component on the branch road that first pipeline of outdoor heat exchanger and heat exchanger constitutes, this composite component is composed in parallel and is positioned at the first pipeline rear end of heat exchanger by the 3rd electric expansion valve and a check valve.
Described heat exchanger is a heat-exchangers of the plate type or tube-in-tube heat exchanger.
Described ice storage cylinder is provided with water return outlet, feed water inlet and water supplement port.
A kind of control method to above-mentioned multi-functional ice-storage air-conditioning system, can realize six kinds of operational modes of ice-storage air-conditioning system, the valve state of a control such as the following table of each operational mode by the state of controlling above-mentioned each valve:
Can realize also that by the state of controlling above-mentioned each valve ice-storage air-conditioning system heats following two kinds of operational modes of water, its valve state of a control is as follows:
Multi-functional ice-storage air-conditioning system of the present invention has the following advantages:
1) system has multiple function: cold (indirectly, directly get cold all can), heat pump heating be got in conventional refrigeration, ice-reserving, ice-melt, heat pump/refrigerating heats water, accumulation of heat, heat release heat supply.
2) design one heat exchanger in system, the degree of supercooling before the cold circulation time of ice-reserving increases throttling, the terminal cold of recovery section ice storage cylinder also can improve the suction temperature of compressor, improve running efficiency of system.
3) in refrigeration or heating, can produce life and use hot water, also can produce hot water (the heating circulation thatmagnetic valve 12 is opened) separately, reclaim used heat, save the energy.
4) ice storage cylinder and outdoor heat exchanger adopt also, the independent control design of the electromagnetism of connect, heat soon, heat loss is little.Use amount of stored heat to add hot-air when heating starts earlier, required " preventing to blow a cold wind over " stand-by period when reducing the ordinary hot pumping system and starting, and the normal heat supply noenergy loss of low temperature, prolong the heat release time.
Description of drawings
Fig. 1 is the system diagram of the multi-functional ice-storage air-conditioning system of the present invention.
Fig. 2 is the running status schematic diagram of ice-storage air-conditioning system of the present invention when the low temperature heat release.
Fig. 3 is the system mode schematic diagram of ice-storage air-conditioning system of the present invention when the ice-reserving mode operation.
Fig. 4 is the system mode schematic diagram of ice-storage air-conditioning system of the present invention while operating heat pump water heater pattern when refrigerating state.
Among the figure
1.compressor 2.cross valves 3.outdoor heat exchangers 4. change interchanger
7. first electric expansion valve, 13. second electric expansion valves, 8. ice storage cylinders (or accumulation of heat tube)
9.water return outlet 10.feed water inlets 5. first magnetic valves, 6. second magnetic valves
11. the 3rdmagnetic valve 12. the 4thmagnetic valve 18. the 5thmagnetic valve 19. the 6th magnetic valve
14.indoor heat exchanger 15. gas-liquid separators 16. water supplement ports
17. composite component (forming) by the 3rd electric expansion valve and check valve
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Consult Fig. 1, multi-functional ice-storage air-conditioning system of the present invention, comprise compressor 1, gas-liquid separator 15,cross valve 2,outdoor heat exchanger 3,ice storage cylinder 8 andindoor heat exchanger 14, describedice storage cylinder 8 also comprises in this ice-storage air-conditioning system betweenoutdoor heat exchanger 3 and indoor heat exchanger 14:
Oneheat exchanger 4, first group of pipeline of thisheat exchanger 4 is connected in series between describedoutdoor heat exchanger 3 and theice storage cylinder 8, and second group of pipeline ofheat exchanger 4 is serially connected with between describedice storage cylinder 8 and theindoor heat exchanger 14.
Firstmagnetic valve 5 is parallel to the branch road two ends that describedoutdoor heat exchanger 3 and heat exchanger first pipeline are constituted.
The parallel component that first electric expansion valve 7 and the 6thmagnetic valve 19 constitute, this parallel component is serially connected with described ice-reservingbucket 8 front ends.
Secondelectric expansion valve 13 is serially connected withindoor heat exchanger 14 front ends.
Second magnetic valve 6 is parallel to the branch road two ends that are made of described parallel component andice storage cylinder 8.
And the 3rdmagnetic valve 11, the 4thmagnetic valve 12 and the 5thmagnetic valve 18, wherein the 5thmagnetic valve 18 is serially connected with the front end ofheat exchanger 4 second pipelines, the 3rdmagnetic valve 11 is parallel to the two ends of the branch road that describedheat exchanger 4 second pipelines and the 5thmagnetic valve 18 that is connected in series constituted, and the 4thmagnetic valve 12 is parallel to the branch road two ends that are made of the describedindoor heat exchanger 14 and secondelectric expansion valve 13.
In Fig. 1-Fig. 4, the above-mentionedindoor heat exchanger 14 and secondelectric expansion valve 13 are one, and in fact theindoor heat exchanger 14 and secondelectric expansion valve 13 can be for a plurality of.
Be connected in series acomposite component 17 on the branch road that first pipeline ofoutdoor heat exchanger 3 andheat exchanger 4 constitutes, thiscomposite component 17 is composed in parallel and is positioned at the first pipeline rear end ofheat exchanger 4 by the 3rd electric expansion valve and a checkvalve.Composite component 17 is set, it can not exert an influence to system's operation under operating modes such as refrigeration, ice-reserving and ice-melt, and in the next pressure loss that in multicell, differs and cause owing to each second electric expansion valve, 13 throttle opening under the heat exchanger situation can avoided of routine heating operating mode, system had both been made when many indoor sets move still can keep higher running efficiency.
Describedheat exchanger 4 can be a heat-exchangers of the plate type, tube-in-tube heat exchanger or other forms of heat exchanger.
Describedice storage cylinder 8 is provided with water return outlet 9,feed water inlet 10 and water supplement port 16.Can provide low-temperature receiver or thermal source for end system if on water return outlet 9 andfeed water inlet 10, be connected the air conditioning terminal system; Also can be used as water heater and externally provide hot water by the feed water inlet.The supply of water is undertaken bywater supplement port 16 in the tube.
Ice-storage air-conditioning system of the present invention can be realized six kinds of operational modes of ice-storage air-conditioning system by the state of controlling above-mentioned each valve, the valve state of a control such as the following table of each operational mode:
Also can realize following two kinds of operational modes of ice-storage air-conditioning system by the state of controlling above-mentioned each valve, its valve state of a control is as follows:
Fig. 2 represents the running status schematic diagram of ice-storage air-conditioning system of the present invention when the low temperature heat release.Referring to Fig. 2, heating function one starts, firstmagnetic valve 5 is opened, the heat of the taking-up from accumulation ofheat tube 8 is directly sucked by compressor 1, room air is heated very soon, reduced the time that the wait of using common heat pump air conditioner to need " prevents to blow a cold wind over ", heat thatoutdoor heat exchanger 3 brought scatters and disappears also to have avoided heat to flow through, and has improved the operational efficiency of system.If firstmagnetic valve 5 can partly be opened or close fully to environment temperature than higher, also, absorb heat from external environment condition, reduce the heat exhaustion ofice storage cylinder 8.
Fig. 3 is the system mode schematic diagram of ice-storage air-conditioning system of the present invention when the ice-reserving mode operation.This moment, the 3rdmagnetic valve 11 cut out, the 5thmagnetic valve 18 is opened, therefrigerant heat exchanger 4 of flowing through, and the cold that utilizesice storage cylinder 8 ends increases degree of supercooling before the throttlings byheat exchanger 4, can also improve simultaneously the suction temperature of compressor 1, the efficient and the security of the operation of raising system.
Fig. 4 heats the system mode schematic diagram of aqueous mode simultaneously when refrigerating state for ice-storage air-conditioning system of the present invention.This moment first,magnetic valve 5 was opened, refrigerant enters accumulation ofheat tube 8 through firstmagnetic valve 5, add the retaining in thethermal regenerator tube 8, carry out the sensible heat accumulation of heat, produce the domestic hot-water, can effectively reclaim the used heat that produces in the process of refrigerastion, improve efficiency of energy utilization, the heat of avoiding again simultaneously producing scatters and disappears throughoutdoor heat exchanger 3, causes the tropical island effect of environment.
Above the present invention is described in detail, has used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. multi-functional ice-storage air-conditioning system, comprise compressor (1), gas-liquid separator (15), cross valve (2), outdoor heat exchanger (3), ice storage cylinder (8) and indoor heat exchanger (14), described ice storage cylinder (8) is positioned between outdoor heat exchanger (3) and the indoor heat exchanger (14), it is characterized in that also comprising in this ice-storage air-conditioning system:
One heat exchanger (4), first group of pipeline of this heat exchanger (4) are connected in series between described outdoor heat exchanger (3) and the ice storage cylinder (8), and second group of pipeline of heat exchanger (4) is serially connected with between described ice storage cylinder (8) and the indoor heat exchanger (14);
First magnetic valve (5) is parallel to the branch road two ends that described outdoor heat exchanger (3) and heat exchanger first pipeline are constituted;
The parallel component that first electric expansion valve (7) and the 6th magnetic valve (19) constitute, this parallel component is serially connected with described ice-reserving bucket (8) front end;
Second electric expansion valve (13) is serially connected with indoor heat exchanger (14) front end;
Second magnetic valve (6) is parallel to the branch road two ends that are made of described parallel component and ice storage cylinder (8);
And three magnetic valve (11,12,18), wherein the 5th magnetic valve (18) is serially connected with the front end of heat exchanger (4) second pipelines, the 3rd magnetic valve (11) is parallel to the two ends of the branch road that described heat exchanger (4) second pipelines and the 5th magnetic valve (18) that is connected in series constituted, and the 4th magnetic valve (12) is parallel to the branch road two ends that are made of described indoor heat exchanger (14) and second electric expansion valve (13).
2. multi-functional ice-storage air-conditioning system according to claim 1, it is characterized in that: be connected in series a composite component (17) on the branch road that first pipeline of outdoor heat exchanger (3) and heat exchanger (4) constitutes, this composite component is composed in parallel and is positioned at the first pipeline rear end of heat exchanger (4) by the 3rd electric expansion valve and a check valve.
3. multi-functional ice-storage air-conditioning system according to claim 1 is characterized in that: described heat exchanger (4) is a heat-exchangers of the plate type or tube-in-tube heat exchanger.
4. multi-functional ice-storage air-conditioning system according to claim 1 is characterized in that: described ice storage cylinder (8) is provided with water return outlet (9), feed water inlet (10) and water supplement port (16).
5. the control method of a multi-functional ice-storage air-conditioning system as claimed in claim 2 is characterized in that: can realize six kinds of operational modes of ice-storage air-conditioning system by the state of controlling above-mentioned each valve, the valve state of a control of each operational mode is as follows:
1) conventional refrigeration: second magnetic valve (6) is opened, first electric expansion valve (7) is closed, the 3rd magnetic valve (11) is opened, the 4th magnetic valve (12) cuts out, second electric expansion valve (13) throttling, and cross valve (2) is closed, first magnetic valve (5) cuts out, composite component (17) is any, and the 5th magnetic valve (18) is any, and the 6th magnetic valve (19) cuts out;
2) ice-reserving pattern: second magnetic valve (6) cuts out, first electric expansion valve (7) throttling, the 3rd magnetic valve (11) cuts out, the 4th magnetic valve (12) is opened, and second electric expansion valve (13) is closed, and cross valve (2) is closed, first magnetic valve (5) cuts out, composite component (17) is any, and the 5th magnetic valve (18) is opened, and the 6th magnetic valve (19) cuts out;
3) ice-melt is got cold: second magnetic valve (6) cuts out, first electric expansion valve (7) is any, the 3rd magnetic valve (11) is opened, the 4th magnetic valve (12) cuts out, second electric expansion valve (13) throttling, and cross valve (2) is closed, first magnetic valve (5) cuts out, composite component (17) is any, and the 5th magnetic valve (18) cuts out, and the 6th magnetic valve (19) is opened;
4) conventional heating: second magnetic valve (6) is opened, first electric expansion valve (7) is closed, the 3rd magnetic valve (11) is opened, the 4th magnetic valve (12) cuts out, second electric expansion valve (13) standard-sized sheet, and cross valve (2) is opened, first magnetic valve (5) cuts out, composite component (17) throttling, the 5th magnetic valve (18) cuts out, and the 6th magnetic valve (19) cuts out;
5) accumulation of heat pattern: second magnetic valve (6) cuts out, first electric expansion valve (7) is any, the 3rd magnetic valve (11) is opened, the 4th magnetic valve (12) is opened, and second electric expansion valve (13) is closed, and cross valve (2) is opened, first magnetic valve (5) cuts out, composite component (17) throttling, the 5th magnetic valve (18) cuts out, and the 6th magnetic valve (19) is opened;
6) heat release heating: second magnetic valve (6) cuts out, first electric expansion valve (7) is any, the 3rd magnetic valve (11) is opened, the 4th magnetic valve (12) cuts out, second electric expansion valve (13) throttling, and cross valve (2) is opened, first magnetic valve (5) On/Off, composite component (17) throttling, the 5th magnetic valve (18) cuts out, and the 6th magnetic valve (19) is opened.
6. control method according to claim 5 is characterized in that, also can realize following two kinds of operational modes of ice-storage air-conditioning system by the state of controlling above-mentioned each valve, and its valve state of a control is as follows:
1) Waste Heat Recovery heats aqueous mode: second magnetic valve (6) cuts out, first electric expansion valve (7) is any, the 3rd magnetic valve (11) is opened, the 4th magnetic valve (12) cuts out, second electric expansion valve (13) throttling, and cross valve (2) is closed, first magnetic valve (5) is opened, composite component (17) is any, and the 5th magnetic valve (18) cuts out, and the 6th magnetic valve (19) is opened;
2) heat pump heats water: second magnetic valve (6) cuts out, first electric expansion valve (7) is any, the 3rd magnetic valve (11) is opened, the 4th magnetic valve (12) is any, and second electric expansion valve (13) is any, and cross valve (2) is opened, first magnetic valve (5) cuts out, composite component (17) throttling, the 5th magnetic valve (18) cuts out, and the 6th magnetic valve (19) is opened.
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| CN2008100052373ACN101498518B (en) | 2008-01-31 | 2008-01-31 | Multifunctional ice-storage air-conditioning system and its control method |
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| CN2008100052373ACN101498518B (en) | 2008-01-31 | 2008-01-31 | Multifunctional ice-storage air-conditioning system and its control method |
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| CN101498518Btrue CN101498518B (en) | 2010-12-08 |
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Families Citing this family (13)
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| CN102331073B (en)* | 2011-09-28 | 2013-07-10 | 宁波奥克斯电气有限公司 | Control method for ice storage multi-split air conditioning unit |
| CN102338444B (en)* | 2011-09-28 | 2013-06-26 | 宁波奥克斯电气有限公司 | Ice storage control method of supercooled water type DC frequency conversion ice storage multi-connected air conditioner |
| CN104180454B (en)* | 2014-08-29 | 2017-01-11 | 深圳华森建筑与工程设计顾问有限公司 | Dynamic ice-crystal storage and chilled water storage mixed system and control method |
| CN104180479B (en)* | 2014-08-29 | 2017-02-01 | 深圳华森建筑与工程设计顾问有限公司 | Cold accumulation air-conditioning system and control method thereof |
| WO2016189663A1 (en)* | 2015-05-26 | 2016-12-01 | 三菱電機株式会社 | Heat pump hot water supply system |
| CN106123390B (en)* | 2016-09-06 | 2018-06-26 | 广东志高暖通设备股份有限公司 | A kind of total heat recovery module water dispenser system |
| CN106369720A (en)* | 2016-09-30 | 2017-02-01 | 广东美的制冷设备有限公司 | Air conditioning system, air conditioner and air conditioning method |
| CN106766318A (en)* | 2017-02-06 | 2017-05-31 | 刘勇 | There is the CO of various functions such as water heating ice making for weather of extremely trembling with fear2Heat pump |
| CN106969395A (en)* | 2017-03-31 | 2017-07-21 | 广东工业大学 | A kind of heat accumulating type air source heat pump directly coagulates formula ground heating system |
| CN110595089B (en)* | 2019-08-28 | 2020-11-27 | 同济大学 | An air-conditioning system that can recover indoor residual cooling and residual heat after shutdown |
| CN112665220B (en)* | 2021-01-14 | 2023-02-10 | 同济大学 | Air source heat pump system and control method based on refrigerant subcooling heat recovery efficiency enhancement |
| CN112594954B (en)* | 2021-01-18 | 2022-11-01 | 北京天意能科技有限公司 | Full-working-condition double-cold-storage warm air conditioning system |
| CN115164438A (en)* | 2022-06-16 | 2022-10-11 | 青岛海尔电冰箱有限公司 | Refrigerating system and refrigerating equipment |
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