CN202304526U - Phase-change heat storage device for defrosting of heat pump water heater - Google Patents

Phase-change heat storage device for defrosting of heat pump water heater Download PDF

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Publication number
CN202304526U
CN202304526U CN2011204111132U CN201120411113U CN202304526U CN 202304526 U CN202304526 U CN 202304526U CN 2011204111132 U CN2011204111132 U CN 2011204111132U CN 201120411113 U CN201120411113 U CN 201120411113U CN 202304526 U CN202304526 U CN 202304526U
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CN
China
Prior art keywords
phase
heat
change heat
defrosting
heat storage
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Expired - Fee Related
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CN2011204111132U
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Chinese (zh)
Inventor
巫江虹
谢方
欧阳东
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South China University of Technology SCUT
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South China University of Technology SCUT
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Priority to CN2011204111132U priority Critical patent/CN202304526U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

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  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The utility model relates to a phase-change heat storage device for defrosting of a heat pump water heater. The phase-change heat storage device comprises a box body. An S-shaped metal pipe is arranged in the box body in a coiling way. Metal fins are sheathed on the S-shaped metal pipe at intervals. The S-shaped metal pipe comprises a refrigerant inlet and a refrigerant outlet. Phase-change heat storage materials are filled in the box body. The waste heat of waste shower water and the outlet of a condenser are recovered through the phase-change heat storage materials and can be used for defrosting in winter. By using the phase-change heat storage materials, the waste heat in a heat pump water heater system can be recovered and used for defrosting in winter, the problem that the heat pump water heater is apt to frost is solved, and the energy utilization ratio and the heat exchange performance of the system are improved. The phase-change heat storage device for defrosting of the heat pump water heater has the characteristics of simple structure, scientific and reasonable design, easiness in production, low cost, great convenience and high reliability in use, good heat transfer effect, high energy utilization ratio, and the like.

Description

A kind of phase change heat accumulator that is used for the Teat pump boiler defrosting
Technical field
The utility model belongs to the phase transition heat accumulation unit field, particularly a kind of phase change heat accumulator that is used for the Teat pump boiler defrosting.
Background technology
Along with improving constantly of living standard; People require increasingly highly for the household comfortableness, so Teat pump boiler begins to come in a large number huge numbers of families as a kind of comfortableness family product, it has satisfied the needs of people for hot water; But also there are some problem demanding prompt solutions in it; Wherein the frosting problem of air source hot pump water heater is exactly one of them, and air source hot pump water heater frosting meeting causes stopping up passage between fin, increases air flow resistance; Increase the heat exchanger thermal resistance, exchange capability of heat descends; Evaporating temperature descends, and Energy Efficiency Ratio reduces, the operation of heat pump mis-behave.Defrosting method to the Teat pump boiler frosting mainly contains cross valve reverse cycle defrost and hot-gas bypass defrosting now, but the shortcoming of cross valve reverse cycle defrost is frequent defrost, and defrost not to the utmost; Defrost process is an operation of air conditioner process, not only can not heat water, also need consume the energy consumption of original hot water simultaneously; The water that freezes of discharging recoils in the attemperater, causes water temperature further to descend, and hot-gas bypass is because the heat of high-pressure side refrigerant still comes from the heat that absorbs in the evaporimeter; When temperature lower; When defrosting is fast inadequately, will not have enough heat absorption, and can make main frame get into the protectiveness stopped status.As the road of adopting simple bypass, then be prone to produce the compressor liquid hit phenomenon.Simultaneously, in defrost process,, the effect of heat hot water can be influenced, the demand of the normal heat water yield can't be satisfied because of the capacity minimizing of compressor.
Summary of the invention
Be to solve the shortcoming and defect of prior art, the utility model provides a kind of phase change heat accumulator that is used for the Teat pump boiler defrosting, can effectively improve the heat exchange property with phase change heat storage material, accelerates to hold the heat release time.
The utility model is realized through following technical scheme:
A kind of phase change heat accumulator that is used for the Teat pump boiler defrosting; Its characteristics are: said phase change heat accumulator comprises casing; Be equipped with the serpentine metal tube in the winding of casing inner disc; Spacer sleeve is provided with metal fin on the serpentine metal tube, and this serpentine metal tube comprises refrigerant inlet, refrigerant outlet, is filled with phase change heat storage material in the said casing.
Said refrigerant inlet, refrigerant outlet stretch out casing, and fix with casing.
Said metal fin is circular or rectangular configuration.
Working medium is carried out heat exchange through serpentine metal tube and metal fin and phase change heat storage material.The waste heat of shower waste and the waste heat of condensator outlet reclaim through phase change heat storage material and are used for defrosting winter.
The advantage and the good effect of the utility model are:
1, serpentine metal tube and metal fin have improved the heat exchange property of working medium and phase change heat storage material.
2, between serpentine metal tube and metal fin, fill phase change heat storage material, helped effective utilization of energy.
3, this patent simplicity of design is practical, and is scientific and reasonable, is easy to manufacture, and cost is low, and heat-transfer effect is good, energy-conservation and easy control, and temperature is evenly constant, holds advantages such as heat release time weak point.
4, the positive and negative running of single channel just can reach the purpose of accumulation of heat heat release, and is simple, respond well.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the heat-accumulating process applicating example of the utility model.
Fig. 3 is the exothermic process applicating example of the utility model.
Among the last figure: compressor 1; Gas-liquid separator 2; Hot gas bypass solenoid valve 3; Outdoor heat exchanger 4; Capillary 5; Phase change heat accumulator 6; Four-way change-over valve 7; Cooling water inlet 8; Oil eliminator 9; Shower room 10; Hot water outlet 11; Outer-enwraped type water tank micro-channel heat exchanger 12; Inner water tank 13.
The specific embodiment
Through instantiation the utility model is done further detailed description below in conjunction with accompanying drawing.Following instance is descriptive, is not determinate, can not limit the protection domain of the utility model with this.
As shown in Figure 1.The utility model is used for the phase change heat accumulator of Teat pump boiler defrosting; Characteristics are; Said phase change heat accumulator 6 comprises casing 15, is equipped with serpentine metal tube 17 in casing 15 inner disc windings, and spacer sleeve is provided with metal fin 19 on serpentine metal tube 17; This serpentine metal tube 17 comprises refrigerant inlet 14, refrigerant outlet 18, is filled with phase change heat storage material 16 in the said casing 15.
Said refrigerant inlet 14, refrigerant outlet 18 stretch out casing 15, and fixing with casing 15, are convenient to be connected with other equipment.This metal fin 19 can be designed to circular or rectangular configuration.
The operation principle of the utility model illustrates through following:
Energy strorage by using residual heat process such as Fig. 2.Cold-producing medium gets into four-way change-over valve 7 the 4th input/output terminal mouth of pipe through four-way change-over valve 7 the 1st input/output terminal mouth of pipe, gets into phase change heat accumulator 6, capillary 5 and outdoor heat exchanger 4 then successively, gets back to the 2nd input/output terminal mouth of pipe of four-way change-over valve 7.Phase change heat accumulator 6 reclaims storage with external water tank heat exchanger 12 outlet waste heats, and the used heat that makes full use of heat pump water heater system reaches the purpose of energy-conservation defrosting.(the cross valve path is 1-4-2-3) utilizes the waste water residual heat of condensator outlet waste heat and the shower room of Teat pump boiler to pass to the heat-storing material of casing the inside through cold-producing medium; Phase-change material heats up very soon and reaches 30~35 ℃ of phase transition temperatures; And continue to absorb great amount of heat energy, phase-change material is dissolved as liquid gradually, be about to environment's heat with the stores of latent heat in storage heater; When phase-change material was dissolved as liquid fully, heat-accumulating process finished.
Releasing can defrost process such as Fig. 3.Cold-producing medium is through four-way change-over valve 7 the 1st input/output terminal mouth of pipe, gets into four-way change-over valve 7 the 2nd input/output terminal mouth of pipe, and inlet chamber external heat exchanger 4, capillary 5 and phase change heat accumulator 6 are successively then got back to the 4th input/output terminal mouth of pipe of four-way change-over valve 7.The preferential inlet chamber external heat exchanger 4 of cold-producing medium of external water tank heat exchanger 12 outlets; Can defrost on accelerating chamber external heat exchanger 4 surfaces; This moment, phase change heat accumulator 6 was equivalent to the evaporimeter of whole heat pump, and phase change heat storage material discharges the system's used heat that absorbs to cold-producing medium.Whole defrost process need not opened unidirectional stop valve and carried out hot-gas bypass, just can realize the defrosting of system.So just can avoid existing Defrost mode often to cross the low problems such as low-voltage variation shutdown that occur because of pressure of inspiration(Pi).Advantages such as that (the cross valve path is 1-2-4-3) this patent has is nontoxic, non-corrosiveness, safe and reliable, working stability, simple in structure, control convenience, easy care.
Just can better realize the utility model as stated.

Claims (3)

1. one kind is used for the phase change heat accumulator that Teat pump boiler defrosts; It is characterized in that: said phase change heat accumulator comprises casing; Be equipped with the serpentine metal tube in the winding of casing inner disc; Spacer sleeve is provided with metal fin on the serpentine metal tube, and this serpentine metal tube comprises refrigerant inlet, refrigerant outlet, is filled with phase change heat storage material in the said casing.
2. the phase change heat accumulator that is used for the Teat pump boiler defrosting according to claim 1, it is characterized in that: said refrigerant inlet, refrigerant outlet stretch out casing, and fix with casing.
3. the phase change heat accumulator that is used for the Teat pump boiler defrosting according to claim 2 is characterized in that: said metal fin is circular or rectangular configuration.
CN2011204111132U 2011-10-25 2011-10-25 Phase-change heat storage device for defrosting of heat pump water heater Expired - Fee Related CN202304526U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204111132U CN202304526U (en) 2011-10-25 2011-10-25 Phase-change heat storage device for defrosting of heat pump water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204111132U CN202304526U (en) 2011-10-25 2011-10-25 Phase-change heat storage device for defrosting of heat pump water heater

Publications (1)

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CN202304526U true CN202304526U (en) 2012-07-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102410768A (en) * 2011-10-25 2012-04-11 华南理工大学 Phase change heat accumulator used for defrosting heat pump water heater
CN104236360A (en) * 2013-06-17 2014-12-24 苏州新华软智能装备有限公司 Modular frame bearing energy storage device
CN106679478A (en) * 2017-02-15 2017-05-17 常熟喷嘴厂有限公司 High-efficiency heat storage and heat exchange device based on composite phase change heat storage material layer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102410768A (en) * 2011-10-25 2012-04-11 华南理工大学 Phase change heat accumulator used for defrosting heat pump water heater
CN104236360A (en) * 2013-06-17 2014-12-24 苏州新华软智能装备有限公司 Modular frame bearing energy storage device
CN104236360B (en) * 2013-06-17 2018-06-01 苏州新华软智能装备有限公司 A kind of modular frame carries energy storage device
CN106679478A (en) * 2017-02-15 2017-05-17 常熟喷嘴厂有限公司 High-efficiency heat storage and heat exchange device based on composite phase change heat storage material layer

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120704

Termination date: 20141025

EXPY Termination of patent right or utility model