A kind of storage heater fluid heat transfer control systemTechnical field
The present invention relates to heat energy utilization, particularly utilize multiple fluid heat accumulating device to realize thermal energy storage, exchange and utilization.
Background technology
Storage heater is the equipment stored heat energy, and existing storage heater is steam type and liquid heat storage device;
In industrial energy saving field, waste heat is carried out reclaiming and storing, usually adopt phase change technique to carry out accumulation of heat, adopt in low temperature field ice-reserving technology to realize accumulation of heat;
In field of solar energy, adopt fuse salt accumulation of heat, although fuse salt can realize the storage of high temperature, but due to its need from Solid State Transformation be liquid, thus heat energy is needed to be heated, the simultaneously toxicity of fuse salt, economical, security also has problems, and the use of thus fuse salt accumulation of heat is restricted.
In field of solar energy, also adopt air or other gas to carry out accumulation of heat, but its hot melt is little, cannot realize large-scale thermal energy storage.
Storage station adopts electric energy to store, particularly the electric energy of wind-powered electricity generation and photovoltaic composition, and because it cannot realize storing, a large amount of abandoning of thus having to, causes a large amount of wastes.If adopt heat energy to store, need the holder possessing powerful storage capacity.
In power station and thermal-storage heating application, need large-scale storage heater, usually reach 500GJ-1000GJ, the accumulation of heat that during large like this storage heater, multiple acquisition system and heat exchanger realize, thus needs to realize large-scale heat storage technology.
Summary of the invention
The object of this invention is to provide a kind of storage heater fluid heat transfer control system, high temperature can be realized, ultra-large, low cost, the heat exchange of high efficiency storage heater, and be suitable for the temperature of 10-1500 degree, heat storage capacity meets or exceeds 500GJ-1000GJ accumulation of heat, the present invention adopts fluid as heat-storing material, hot channel and heat release pipeline are filled in employing, fill between hot channel with heat release pipeline and be connected by fluid pool, by multiple heat release storage heater with fill hot channel and be connected, and by the fluid in multiple storage heater by fill on hot channel and to be transported in fluid pool, heat release pipeline directly directly obtains fluid from filling hot channel or obtain fluid from fluid pool, then transported fluid in storage heater by heat release pipeline and use, after in fluid, heat energy is transported to heater heating after being used, enter by filling hot channel again, thus realize recycling heat energy storage and utilize.
Concrete summary of the invention is as follows:
A kind of storage heater fluid heat transfer control system, comprise multiple storage heater, fluid, sensor, connecting pipe, control device forms, it is characterized in that: be provided with two kinds of pipelines, a kind of for filling hot channel, another one is heat release pipeline, fill between hot channel and heat release pipeline and be connected with fluid pool, multiplely fill hot interface filling hot channel is provided with, filling hot interface can connect by fluid heat accumulating device, and is unloaded to by the fluid in fluid heat accumulating device and fills on hot channel, fill in hot channel and be provided with power set, can by fluid transport in fluid pool; Heat release pipeline is provided with multiple heat release interface, the fluid in fluid pool is made to be filled in storage heater by heat release interface, fluid is realized to carry out heat exchange distribution and control, the outer setting of filling hot channel and heat release pipeline and power-equipment has insulation material, will at unloading, transport, fluid pool, be filled with in process fluid be incubated; In storage heater, hot fluids temperature is lower than after setting value, is unloaded by fluid from storage heater, then is transported to solution thermal region, after fluid heating, then is filled in storage heater, can recycles like this.
Fill heat pipe to or heat release pipeline on each interface position be provided with sensor, valve, interface unit, electronic control device, the connection of storage heater and system can be completed.
Storage heater and fluid pool and fill hot channel or heat release pipeline junction is provided with power set, discharge the fluid in in required pipeline position, interface, fluid tank.
Power supplying apparatus is: one or more of motor, pump, electromagnetic pump.
Being provided with central control system, being made up of, to arranging sensor, electronic valve, electronic switch in each interface and each fluid tank, for realizing the control to whole system computer, software, sensor, electronic valve, electronic switch etc.
Fluid select from following one or more: the working media of fluid is low temperature-30-250 degree, and middle temperature 250-600 degree, high temperature 600-1300 degree, uses different fluids according to different temperature.
Fluid is liquid metal, and described liquid metal is following one or more or its compound: mercury, caesium, gallium, rubidium, potassium, sodium, indium, lithium, tin, bismuth, thallium, and cadmium is plumbous, zinc, antimony, magnesium, aluminium.
Described storage heater is made up of a container, container is provided with an import and one export, fluid can be put in container by import, and can from outlet offload fluid, external container is provided with insulation material.
Described storage heater inside is provided with the pipeline connecting import and outlet, and fluid can be made on pipeline to flow and carry out heat exchange with the fluid in storage heater.
A little row segmentation capable of being combined fluid heat accumulating device selected by insulation material: the segmentation fluid heat accumulating device or multiple capable of being combined of nano microsphere, silicon powder, vacuum layer, polyurethane, polyphenyl, perlite, glass fibre, insulating cement; Other external shell is also provided with in outside insulation material outside.
Adopt technical scheme of the present invention can produce following beneficial effect:
1, the present invention adopt fluid to realize high temperature is extensive, modularization heat exchange and accumulation of heat, the heat energy gathered from different regions rationally can be assigned to different storage heaters to use, realize the thermal energy storage of 10-1500 degree, safe and reliable.
2, the present invention can realize accumulation of heat that is capable of being combined and segmentation, realizes the establishment at the accumulation of heat station of large-scale combination and segmentation.
The present invention can be applied to the multiple application such as industrial exhaust heat, solar energy, underground heat, living beings.
Accompanying drawing explanation
Fig. 1 is fluid heat transfer control system schematic diagram;
Fig. 2 is fluid heat accumulating device schematic diagram.
Number in the figure implication:
1: import, 2: outlet, 3: container, 4: fluid, 5: circulating pump 6: central control system, 7: fill hot channel, 8: fill thermal regenerator device, 9: heat release pipeline, 10: heat release storage heater, 11: valve, 12: internal tank connecting pipe, 13: fluid pool, 14: insulation material, 15: power-equipment, 16: control system circuit.
Detailed description of the invention
Embodiment 1, fluid heat transfer accumulation of heat control system
Fluid heat transfer system shown in Fig. 1, thermal regenerator device 8 is filled and three heat release storage heaters 10 form by three, and a fluid pool 13 forms, three that fill thermal regenerator device 8 with fill hot channel 7 and be connected, and fluid to be unloaded to accumulation of heat pond by filling hot channel 7 or to be directly filled in the storage heater of heat release pipeline by fluid, being connected with heat release pipeline 9 of three heat release storage heaters 10, three heat release storage heaters 19 are connected with heat release pipeline 9, fill hot channel 7 simultaneously and are connected with heat release pipeline 9.
Described storage heater 8,10 as shown in Figure 2, forms containing the container 3 of import 1 with outlet 2 by one, is provided with fluid 4 therein;
Fill thermal regenerator device 8 and fill after hot channel is connected, open and fill thermal regenerator device 8 and import and export 1 valve 11, fluid to be filled on hot channel 7, fluid by under going at circulating pump to drive by fluid transport to fluid pool or be directly transported on heat release pipeline 9, fluid 4 directly carries heat release storage heater to be used by heat release pipeline, after heat release storage heater is used, its fluid is again transported to heating region and heats, be placed in storage heater by the fluid heated, be transported to and fill hot channel region, fluid is downloaded to and fills hot channel, achieve the transmission of heat energy and large-scale thermal energy exchange and use.
If wish that obtaining three is all the regenerator temperature that temperature is the same, three can be filled thermal regenerator device and three heat release storage heaters and open simultaneously and carry out fluid circulation.
If fill thermal regenerator device by three to open simultaneously, start to open a heat release storage heater, after first heat release storage heater is piled heat energy, heat release is carried out again to second, the 3rd again, such order makes the temperature of three storage heaters be issued by difference, first the highest, second secondly, 3rd minimum, can be discharged by the heat energy of storage heater fully like this.
Also fluid can be downloaded respectively or jointly by filling thermal regenerator device, also other can be divided to download, for heat release storage heater, can divide other loading that other also can be divided to load, fill the increase as required that thermal regenerator device or heat release storage heater can be unlimited, until satisfy the demand.
Carry out in charge and discharge thermal process in system, central control system, be made up of computer, software, sensor, electronic valve, electronic switch etc., to in each interface and each fluid tank, sensor, electronic valve, electronic switch are set, for realizing the control to whole system, realize the charge and discharge heat of intelligence.