CN101298925B - Method and device for heating by heat electric heating pump phase-change thermal storage - Google Patents
Method and device for heating by heat electric heating pump phase-change thermal storage Download PDFInfo
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- CN101298925B CN101298925B CN2008100314427A CN200810031442A CN101298925B CN 101298925 B CN101298925 B CN 101298925B CN 2008100314427 A CN2008100314427 A CN 2008100314427A CN 200810031442 A CN200810031442 A CN 200810031442A CN 101298925 B CN101298925 B CN 101298925B
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Abstract
Disclosed is a thermoelectric heat pump phase change heat storage heating method and a device. When in energized heat storage during the trough electrovalency phase, the thermoelectric chip set is connected with one end of the phase change heat storage materials as the fire end, and the heat energy generated is transferred to the phase change heat storage materials for storage, while the other end of the thermoelectric chip set becomes the cool end and adsorbs the waste heat from the surrounding air. When in heat emission heating, there is provided with two working modes, the first working mode is an energy saving mode, wherein the surrounding air directly exchange the heat with the regenerative phase change heat storage materials to realize the heat release warm; when the first working mode can not satisfy the warm request, the current direction of the thermoelectric chip set is changed, to make the cold and heat end faces changed; one end of the thermoelectric chip set connected with the phase change heat storage materials becomes the cold end, which adsorbs the heat energy of the phase change heat storage materials, and the heat of the other end of the thermoelectric chip set is released for the warm.
Description
Technical field
The invention belongs to energy class heat supply process field, relate in particular to a kind of heating by heat electric heating pump phase-change thermal storage method and device.
Background technology
Raising along with people's living standard, increasing electrical equipment is come into ordinary citizen house, and poly-the falling of these electrical equipment major parts frequency of utilization after morning, this makes that " peak-paddy " contradiction of originally very serious supply of electric power is more outstanding, and the difference of peak of power consumption and low power consumption load is more and more big.Continue to descend along with winter temperature in recent years, particularly freezing disaster period, cause the heating load to continue to rise, part city maximum load in winter surpasses the maximum load in summer, and comparatively frequent power cuts to limit consumption phenomenon all appears in the various places, each province.Heat storage technology can " uniform load ", can enough " valley power " finishes the work of " peak power "; Not only have the saving energy, advantage such as protection environment etc., and the user had very big practical significance economically.
Electric heater commonly used at present has various ways such as electric heater, the infrared electric heater of quartz ampoule, the infrared electric heater of crystallite, the infrared electric heater of Halogen lamp LED, filling type electric heater, electric warm-air machine, the heater element of these warmers mainly contains heating wire, electrothermal tube, infrared quartz pipe, PTC heater element, halide torch, Electric radiant Heating Film, its efficient is generally 0.9-0.95, has the operating cost height, efficient is low, heating temp is high, the problem of poor safety performance.
And the normal domestic use air-conditioning is easy to frosting in the low temperature and moisture environment, causes heating capacity to descend; On the contrary, the decline of environment temperature causes the increase of heating load, causes heat supply and the contradiction that needs thermic load.There are many documents that the problems referred to above have been carried out analyzing and having proposed some counter-measures at present, but a lot of problems are arranged.Current refrigerating plant and heat pump assembly Defrost method and the present Research that defrosts and control commonly used have been introduced as document " defrosting and defrosting are controlled and studied " (east bright old Ru Dong " fluid machinery " perhaps), but these methods and end fundamentally solve the frosting problem, and are difficult to use in practical matter.
At present domestic less to the research of heat supply hold over system, application study to phase-transition heat-storage also mainly concentrates in the research of phase change heat storage mechanism and solar energy phase transition heat accumulation heating system in the world, patent " phase change accumulating heat-pump heat supply system " (application number 01105718.1) adopts electric heater directly to heat evening, its heating efficiency is less than 1, though utilized the low ebb in evening, saved user's expense, but really not energy-conservation; And heating by heat electric heating pump phase-change thermal storage method and device utilize the thermoelectric chip heat pump functional to carry out heat-storage heating, and heating efficiency is higher, owing to do not use cold-producing medium, eliminated cold-producing medium and sewed murder by poisoning to human body, and simple in structure, be fit to average family heating and use.See the pertinent literature report to utilizing the thermoelectric chip heat pump functional to carry out the heat-storage heating end at present.
Summary of the invention
The technical problem to be solved in the present invention is: the technical problem at prior art exists the invention provides a kind of heating by heat electric heating pump phase-change thermal storage method.This method not only can reclaim airborne used heat by the thermoelectric chip heat pump functional, improves heating efficiency; And utilize phase transition heat accumulation unit accumulation of heat in night, reach the purpose of saving customer charge thereby make full use of electricity price between peak and valley; Overcome the easy frosting of normal domestic use air-conditioning simultaneously, cause the heating by heat electric heating pump phase-change thermal storage method of heat supply and the contradiction that needs thermic load because of environment temperature descends.
Purpose of the present invention is intended to for realizing that said method provides simple in structure, easy to use, overcome existing heating equipment operating cost height, inefficient shortcoming, help saves energy, use on the electric power peak of staggering, and saves customer charge, solves the heating by heat electric heating pump phase-change thermal storage device that the easy frosting of normal domestic use air-conditioning causes heat supply and needs thermic load contradiction simultaneously.
The objective of the invention is to realize by following manner:
The low ebb electricity price stage, the thermal energy transfer that one end of thermoelectric chip group connection phase change heat storage material becomes the hot junction generation stored in phase change heat storage material when switching on accumulation of heat, and the other end of thermoelectric chip group becomes cold junction and absorb used heat from surrounding air; When heat release heating, be divided into two kinds of mode of operations, first kind of power saving operation pattern is that ambient air is directly realized the heat release heating with the phase change heat storage material generation heat exchange of accumulation of heat; Can not satisfy heating when requiring first kind of mode of operation, change the sense of current of thermoelectric chip group, the cool and heat ends both ends of the surface of thermoelectric chip group are changed, one end of the thermoelectric chip group that links to each other with phase change heat storage material is transformed into cold junction, absorb the heat energy of phase change heat storage material, and discharge for the heating use by the other end hot junction of thermoelectric chip group.
The thermoelectric chip that the thermoelectric chip group adopts the N.P semiconductor element to form.
Phase change heat storage material of the present invention can adopt low melt point paraffin or the approximate phase-change material of fusing point about 30 degree to be contained in the copper box, this class heat-storing material scope of application is wide, heat of fusion, density, volume accumulation of heat heat density are bigger, and price is also more cheap, are easy on the market buy.
Method of the present invention is by the accumulation of heat of switching in the low ebb electricity price stage in night, and the electricity price peak is used for heating with the accumulation of heat heat by day.Not only can reclaim airborne used heat by the thermoelectric chip heat pump functional, can also utilize phase transition heat accumulation unit accumulation of heat in night, reach the purpose of saving customer charge thereby make full use of electricity price between peak and valley, can carry out Waste Heat Recovery, improving heating efficiency again can peak load shifting, reduces operating cost.In addition, method of the present invention also adopts two kinds of heat release patterns to carry out heating simultaneously, wherein a kind of mode of operation is by changing input thermoelectric chip group sense of current, the characteristics that the hot and cold end face of thermoelectric chip group changes, promptly utilize the heat pump functional of thermoelectric chip group that the heat energy that the typing phase change heat storage material holds is discharged once more by importing a spot of electric energy, send the wind of higher temperature, overcome the heat supply that domestic air conditioning heating causes because of the rapid decline of environment temperature and needed thermic load contradiction.Also available another kind of energy-saving mode when environment temperature is higher promptly directly adopts air directly to contact the generation heat exchange with the typing phase change heat storage material, and the heat that discharges wherein uses for heating.
For realizing method of the present invention, can adopt following device, comprise housing and heat-insulation layer, be provided with phase change heat storage material, thermoelectric chip group in housing and the heat-insulation layer; Be communicated with a passage around phase change heat storage material between phase change heat storage material and heating air-supply air door, the heating air-out air door; The thermoelectric chip group is clipped between heat-pipe radiator base piece and the cold junction foot of radiator piece; Described heat-pipe radiator base piece, cold junction foot of radiator piece are connected with heat-pipe radiator, cold junction radiator respectively; Heat-pipe radiator is placed on the inside of typing phase change heat storage material; Cold junction air-supply air door is communicated with cold junction radiator and cold junction air-out air door.
One end face of housing and heat-insulation layer is provided with cold junction air-supply air door and heating air-out air door, and the other end of housing and heat-insulation layer is provided with cold junction air-out air door and heating air-supply air door.
Cold junction air-supply air door and heating air-supply air door place are provided with cold junction cooling fan and heating breeze fan respectively.
Adopt heat-pipe radiator that the typing phase change heat storage material is carried out accumulation of heat, the heat that the thermoelectric chip group is sent out is in time transmitted and is stored in the typing phase change heat storage material, has improved the heating efficiency of thermoelectric chip group.
Described typing phase change heat storage material is poured in the copper box by low-temperature phase-change material paraffin, and heat-pipe radiator is placed on typing phase change heat storage material inside.
Utilize the low-temperature phase-change material in the heat pump functional heater of thermoelectric chip evening, make its thawing, heat is stored with latent heat (fraction sensible heat) form; Daytime, the height according to environment temperature can adopt two kinds of heat release patterns to carry out heat release.Advantage of the present invention is:
1) heater element of heating by heat electric heating pump phase-change thermal storage method and device adopts the semiconductor chip group, compare heater elements such as direct electricity consumption fever silk, electrothermal tube, infrared quartz pipe, PTC heater element, halide torch, Electric radiant Heating Film, semiconductor chip group heating efficiency height.
2) heating by heat electric heating pump phase-change thermal storage method and device adopt low-temperature phase-change material to carry out accumulation of heat, accumulation of heat when the night dip electricity, and the heat release on daytime meets national electricity consumption policy, plays the peak load shifting effect, reduces user's cost of use simultaneously.
3) heating by heat electric heating pump phase-change thermal storage method and device adopt two kinds of pattern heat releases, wherein a kind of pattern is to utilize the heat pump functional of thermoelectric chip to carry out heat release, promptly change the sense of current of input thermoelectric chip group, the hot and cold end face of thermoelectric chip group changes, utilize the heat pump functional of thermoelectric chip group that the heat energy that the typing phase change heat storage material holds is discharged once more by importing a spot of electric energy, send the wind of higher temperature, satisfy the heating requirement under people's low temperature environment.It is low more to compare normal domestic use air conditioner surroundings temperature, easy more frosting, heating efficiency is low more, cause heat supply and need the contradiction of thermic load, heating by heat electric heating pump phase-change thermal storage method and device solves this problem.
4) heating by heat electric heating pump phase-change thermal storage method and device adopt the low-temperature phase-change material accumulation of heat, and the heat in hot junction is delivered to phase-change material by heat-pipe radiator, heat exchange of heat pipe heat transfer efficiency height, can realize transfer of heat rapidly, need absorb a large amount of heats when utilizing phase-change material to undergo phase transition simultaneously and temperature maintenance is constant in transformation temperature, thermoelectric chip group hot-side temperature can maintain stable temperature like this, can sharply not change, and helps the raising of heating efficiency.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the rearview of Fig. 1
Fig. 3 is the cutaway view of B-B among Fig. 1
Fig. 4 is the cutaway view of A-A among Fig. 1
Fig. 5 is that the cold and hot two ends of thermoelectric chip group connect enlarged diagram
Marginal data
1, housing and heat-insulation layer 2, cold junction air-supply air door
3, heating air-out air door 4, pulley
5, cold junction air-out air door 6, heating air-supply air door
7, heat-pipe radiator 8, typing phase change heat storage material
9, cold junction cooling fan 10, heating breeze fan
11, heat-pipe radiator base piece 12, thermoelectric chip group
13, cold junction foot of radiator piece 14, cold junction radiator
15, around the passage of phase change heat storage material
The specific embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details, following examples are intended to illustrate that the present invention rather than the present invention further limit.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, heating by heat electric heating pump phase-change thermal storage method of the present invention and device, comprise: housing and heat-insulation layer 1, one end of housing and heat-insulation layer 1 is provided with cold junction air-supply air door 2 and heating air-out air door 3, the other end of housing and heat-insulation layer 1 is provided with cold junction air-out air door 5 and heating air-supply air door 6, cold junction air-supply air door 2 and heating air-supply air door 6 places are provided with cold junction cooling fan 9 and heating breeze fan 10 respectively, and the inside of housing and heat-insulation layer 1 is provided with thermoelectric chip group 12.Heat-pipe radiator base piece 11, cold junction foot of radiator piece 13 are connected with heat-pipe radiator 7, cold junction radiator 14 respectively; Thermoelectric chip group 12 is clipped between heat-pipe radiator base piece (11) and the cold junction foot of radiator piece (13), the thermoelectric chip (the TEC1-12706 type thermoelectric chip that Xianghe North China chilling unit Co., Ltd produces) that this thermoelectric chip group 12 adopts the N.P semiconductor element to form, after feeding direct current, can on chip, form two faces of cold-peace heat, characteristic according to thermoelectric chip group 12, in order to make thermoelectric chip group 12 working stabilities, when the hot junction that utilizes thermoelectric chip group 12 heats, the cold of thermoelectric chip group cold junction is left, thereby make the hot junction continuous firing of thermoelectric chip group 12, can cold be taken away by flow air in the cold junction radiator 14 thus.The heat that the hot junction of thermoelectric chip group 12 produces will transmit rapidly to prevent that temperature is too high the heating efficiency of thermoelectric chip group 12 is reduced, so adopt heat-pipe radiator 7 to carry out the heat transmission, being beneficial to heat transmits rapidly and is stored in the typing phase change heat storage material 8, typing phase change heat storage material 8 is material for storing heat of phase change in low temperature to be poured in the copper box make, like this when low-temperature phase-change material undergoes phase transition, the variation of shape can not take place in typing phase change heat storage material 8, and the copper box storage of adopting good heat conductivity is for when dispelling the heat, heat in the typing phase change heat storage material 8 can in time shed, device moves for convenience, is provided with pulley 4.
Operation principle: at night during the accumulation of heat of low ebb electricity price, after air was pressed into cold junction radiator 14 and is carried out heat exchange by cold junction cooling fan 9 by cold junction air-supply air door 2, cold wind was expelled to outdoor through cold junction air-out air door 5; Meanwhile, the heat that the hot junction of thermoelectric chip group 12 produces is delivered in the typing phase change heat storage material 8 by heat-pipe radiator 7, because typing phase change heat storage material 8 undergoes phase transition, by solid-state become liquid absorb a large amount of heats and temperature maintenance near phase transformation temperature points, therefore the cool and heat ends temperature difference of thermoelectric chip group 12 can be very not big, makes thermoelectric chip group 12 that higher operating efficiency be arranged and finish heat-accumulating process.After accumulation of heat is finished, scatter and disappear for preventing heat, cold junction air-supply air door 2 and cold junction air-out air door 5 are closed.
Daytime, the mode of operation of heating had two kinds: a kind of pattern is to utilize the heat pump functional of thermoelectric chip group 12 that the low grade heat energy that typing phase change heat storage material 8 holds is discharged once more by importing a spot of electric energy, sends the wind of higher temperature, satisfies the needs of heating.Concrete grammar is for changing the sense of current of input thermoelectric chip group 12 by the dc source switching valve, character according to thermoelectric chip group 12, thermoelectric chip group 12 cold, hot both ends of the surface change, heat exchange takes place by heat-pipe radiator 7 and typing phase change heat storage material 8 in the cold junction of thermoelectric chip group 12, and Cryogenic air is sent hot blast after being pressed into cold junction radiator 14 and its generation heat exchange by cold junction air-supply air door 2 by cold junction cooling fan 9, and the heat that is stored in like this in the typing phase change heat storage material 8 just discharges for the heating use through the heat pump effect of thermoelectric chip group 12.Another kind of pattern be energy-saving mode as shown in Figure 4, when environment temperature is higher, air is sent hot blast for the heating use through heating air-out air door 3 after being pressed into passage 15 around phase change heat storage material and with typing phase change heat storage material 8 heat exchanges being taken place by heating breeze fan 10 by heating air-supply air door 6.
Claims (3)
1. a heating by heat electric heating pump phase-change thermal storage device comprises housing and heat-insulation layer (1), it is characterized in that, is provided with typing phase change heat storage material (8) in housing and the heat-insulation layer (1), thermoelectric chip group (12); Be communicated with a passage (15) around typing phase change heat storage material (8) between typing phase change heat storage material (8) and heating air-supply air door (6), the heating air-out air door (3); Thermoelectric chip group (12) is clipped between heat-pipe radiator base piece (11) and the cold junction foot of radiator piece (13); Heat-pipe radiator base piece (11), cold junction foot of radiator piece (13) are connected with heat-pipe radiator (7), cold junction radiator (14) respectively; Heat-pipe radiator (7) is arranged on the inside of typing phase change heat storage material (8); Cold junction air-supply air door (2) is communicated with cold junction radiator (14) and cold junction air-out air door (5).
2. a kind of heating by heat electric heating pump phase-change thermal storage device according to claim 1, it is characterized in that, one end face of housing and heat-insulation layer (1) is provided with cold junction air-supply air door (2) and heating air-out air door (3), and the other end of housing and heat-insulation layer (1) is provided with cold junction air-out air door (5) and heating air-supply air door (6).
3. a kind of heating by heat electric heating pump phase-change thermal storage device according to claim 1 and 2 is characterized in that, cold junction air-supply air door (2) and heating air-supply air door (6) locate to be provided with respectively cold junction cooling fan (9) and heating breeze fan (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100314427A CN101298925B (en) | 2008-06-05 | 2008-06-05 | Method and device for heating by heat electric heating pump phase-change thermal storage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100314427A CN101298925B (en) | 2008-06-05 | 2008-06-05 | Method and device for heating by heat electric heating pump phase-change thermal storage |
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| CN101298925A CN101298925A (en) | 2008-11-05 |
| CN101298925B true CN101298925B (en) | 2011-01-19 |
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| CN102519290B (en) * | 2012-01-06 | 2013-11-06 | 湖南大学 | Phase-change energy storage device and ternary single-way/two-way phase-change energy storage method and system |
| CN103017281B (en) * | 2013-01-05 | 2015-02-04 | 湖南大学 | Energy storage type thermoelectric type air conditioner |
| CN103644682B (en) * | 2013-12-04 | 2016-06-29 | 华中科技大学 | A kind of phase change heat storage type ground heat exchanger |
| CN105115021B (en) * | 2015-09-23 | 2018-08-28 | 北京市润华给水设备厂 | A kind of heater of phase change heat storage tank coupling heat-dissipating pipe row |
| CN108253568B (en) * | 2018-02-06 | 2024-07-23 | 江苏紫东建筑科技股份有限公司 | Mobile device for controlling microenvironment through convection radiation and shielding and working method thereof |
| CN111174329B (en) * | 2018-10-24 | 2021-11-23 | 青岛海尔空调器有限总公司 | Movable air conditioner and temperature adjusting and controlling method thereof |
| CN109631202A (en) * | 2018-12-06 | 2019-04-16 | 大连理工大学 | A kind of accumulation of heat/cold storage double-flow style semiconductor air conditioner |
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| CN110017525B (en) * | 2019-05-23 | 2024-09-10 | 河北秦桥热力有限公司 | Heat accumulation body pouring molding heat accumulation type electric heater |
| CN110425630B (en) * | 2019-08-07 | 2021-06-01 | 临沂智慧新能源科技有限公司 | Large-temperature-difference mobile heat storage vehicle and heat supply control method thereof |
| CN110926024A (en) * | 2019-12-19 | 2020-03-27 | 温州盘虎新能源有限公司 | Heat pump circulation energy storage hot air blowing device |
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