CN202853111U - Air source heat pump water heater - Google Patents

Air source heat pump water heater Download PDF

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Publication number
CN202853111U
CN202853111U CN 201220608379 CN201220608379U CN202853111U CN 202853111 U CN202853111 U CN 202853111U CN 201220608379 CN201220608379 CN 201220608379 CN 201220608379 U CN201220608379 U CN 201220608379U CN 202853111 U CN202853111 U CN 202853111U
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CN
China
Prior art keywords
water heater
refrigerant
air source
pipeline
pump water
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220608379
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Chinese (zh)
Inventor
黄道德
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Zhejiang De Fu New Energy Technology Co ltd
Original Assignee
Zhejiang Ama & Hien Technology Co Ltd
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Priority to CN 201220608379 priority Critical patent/CN202853111U/en
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Publication of CN202853111U publication Critical patent/CN202853111U/en
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Abstract

The utility model discloses an air source heat pump water heater, which comprises an evaporator (4), a compressor (1), an air cooler (2) and a throttling device (3) which are connected with one another in sequence to form a circulation loop. One end of the air cooler is provided with a cold water inlet (21), and the other end of the air cooler is provided with a hot water outlet (23). The air source heat pump water heater further comprises a water collector (6) at the bottom of the evaporator, and a pipeline (7) in the water collector, wherein a refrigerant circulates in the pipeline; the water collector is connected with a drain pipe (8); one end of the pipeline is connected with a refrigerant outlet (22) of the air cooler, and the other end of the pipeline is connected with the input end (31) of the throttling device; and a high-temperature high-pressure gas refrigerant compressed by the compressor is subjected to heat exchange with cold water in the air cooler to be converted into a medium-temperature high-pressure liquid refrigerant and flows through the water collector at the bottom of the evaporator through the pipeline. Deicing is implemented by waste heat of the liquid refrigerant, and thus a good deicing effect is realized while the outlet water temperature of the water heater is not lowered.

Description

Air source hot pump water heater
Technical field
The utility model relates to a kind of air source hot pump water heater, belongs to household appliance technical field.
Background technology
Along with socioeconomic development, people are also more and more higher to the requirement of quality of life.Having a bath to have a shower is example, and gas heater, electric heater, solar water heater etc. all do not satisfy people far away to comfortable, energy-conservation, security needs.So a kind of air source hot pump water heater based on the heat pump cycle principle begins to be used widely.
Air source hot pump water heater mainly is comprised of evaporimeter, compressor, air cooler, expansion valve, it adopts the contrary circulation in Kano, and decide entropy compression, the isobaric cooling of cold-producing medium, refrigerant liquid by cold-producing medium isothermal evaporation, refrigerant vapour and decides four cyclic processes of entropy expansion and consist of.During work, it utilizes evaporimeter and blower fan that airborne low temperature heat energy is absorbed, isothermal evaporation forms refrigerant vapour after cold-producing medium in the evaporimeter and the low temperature heat energy heat exchange, the refrigerant gas that compressor sucks refrigerant vapour and is compressed into HTHP enters in the air cooler and cools off, the heat that cold-producing medium carries in the cooling procedure and cold water carry out exchange heat, at last, cold-producing medium is finished to decide to get back in the evaporimeter after entropy expands in expansion valve and is repeated with cocycle, thereby realizes utilizing air-source that its thermal energy transfer is realized heating to cold water to cold water.But, this Teat pump boiler is when the use in winter of north cold, evaporimeter can ceaselessly absorb the heat of air, air themperature is reduced, airborne moisture will condense on the fin of evaporimeter and form the globule, because outdoor temperature is too low, the globule that is condensed on the evaporimeter is easy to frosting, in order to guarantee the normal operation of evaporimeter, need to be to the evaporimeter processing that defrosts, the flows that the current after defrosting is processed can be along the fin of evaporimeter to evaporimeter, thus the accumulation of current appears in the bottom of evaporimeter, outside air temperature is lower in addition, cause base of evaporator to freeze, use for a long time and can further strengthen the thickness that freezes, finally cause system normally not move, therefore, the ice problem that removes of Teat pump boiler needs to solve.
In the prior art, Chinese patent literature CN201514040U discloses a kind of carbon dioxide heat pump water heater, and it comprises evaporimeter; Bypass presses down the ice hot water line, is located in the bottom of also passing through evaporimeter in the evaporimeter; Air cooler presses down the ice hot water line with bypass and is connected, and presses down the ice hot water line by bypass is installed, and can control some heat exchanger tubes in all or part of flow of hot water pervaporation device bottom that air cooler is produced, the frost thereby the device bottom that avoids evaporating freezes.
This carbon dioxide heat pump water heater is in order to solve the problem of the icing frost of base of evaporator, the all or part of heat exchanger tube by base of evaporator of the hot water that air cooler need to be produced carries out the heat exchange deicing, will reduce like this leaving water temperature of this Teat pump boiler, particularly freeze more serious the time, the leaving water temperature of water heater will reduce greatly.
The utility model content
Technical problem to be solved in the utility model is that Teat pump boiler of the prior art can reduce the problem of water outlet of water heater temperature when utilizing hot water to carry out the evaporimeter deicing, thereby a kind of air source hot pump water heater that can realize the good deicing effect of evaporimeter when keeping the water outlet of water heater temperature is provided.
To achieve these goals, the utility model provides a kind of air source hot pump water heater, comprise the evaporimeter, compressor, air cooler and the throttling arrangement that connect to form successively closed circuit, one end of described air cooler has cold water inlet, the other end has hot water outlet, also comprise the water accumulating disc that is arranged on described base of evaporator and be arranged on the pipeline that circulates for refrigerant in the described water accumulating disc, described water accumulating disc is connected with drainpipe, one end of described pipeline is connected with the refrigerant exit of described air cooler, and the other end is connected with the input of described throttling arrangement.
In the above-mentioned air source hot pump water heater, described pipeline is U-shaped layout in described water accumulating disc.
In the above-mentioned air source hot pump water heater, described air source hot pump water heater also comprises regenerator, wherein, the described refrigerant exit of described air cooler is connected with the first refrigerant entrance of described regenerator, and the described input of described throttling arrangement is connected with the first refrigerant exit of described regenerator; The gas outlet of described evaporimeter is connected with the second refrigerant entrance of described regenerator, and the air entry of described compressor is connected with the second refrigerant exit of described regenerator.
In the above-mentioned air source hot pump water heater, an end of described pipeline is connected with the refrigerant exit of described air cooler, and the other end is connected with the first refrigerant entrance of described regenerator.
In the above-mentioned air source hot pump water heater, be provided with defroster duct by the first magnetic valve between described compressor and the described evaporimeter.
In the above-mentioned air source hot pump water heater, be connected with gas-liquid separator between described regenerator and the described compressor.
In the above-mentioned air source hot pump water heater, described throttling arrangement comprises filter and the expansion valve that connects successively.
In the above-mentioned air source hot pump water heater, the described cold water inlet place of described air cooler is provided with the temperature gate valve.
In the above-mentioned air source hot pump water heater, described refrigerant is CO 2Cold-producing medium.
In the above-mentioned air source hot pump water heater, be provided with the second magnetic valve on the described pipeline.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) air source hot pump water heater of the present utility model, its base of evaporator water accumulating disc inside is provided with the pipeline for the refrigerant circulation, one end of this pipeline is connected with the outlet of air cooler, the other end is connected with the input of throttling arrangement, the cold media gas of the HTHP of compressor compresses carries out heat exchange with cold water and changes the refrigerant liquid of middle temperature high pressure into and by the flow through water accumulating disc of base of evaporator of pipeline in air cooler, thereby utilize the part of waste heat of the liquid refrigerants self of air cooler outflow to carry out deicing, can when not reducing the water outlet of water heater temperature, realize good deicing effect.
(2) air source hot pump water heater of the present utility model, its pipeline is U-shaped layout in water accumulating disc, thereby increases refrigerant and the heat exchange contact area that freezes, and realizes better deicing effect.
(3) air source hot pump water heater of the present utility model, it also comprises regenerator, so that warm refrigerant carries out heat exchange with the low temperature refrigerant that flows out from evaporimeter therein from the air cooler outflow, thereby the temperature that makes the refrigerant of flow throttling device further reduces and the temperature of the refrigerant that enters compressor is further improved, and improves the heat exchange efficiency of whole system.
(4) air source hot pump water heater of the present utility model, it also comprises being arranged between compressor and the evaporimeter and is provided with defroster duct by magnetic valve, when evaporimeter frosting occurs and needs defrost, electromagnetic valve work, the cold media gas that compressed machine is compressed into HTHP enters in the evaporimeter by magnetic valve and carries out heat exchange with frosting, melts because the evaporimeter that the evaporator condensation frost that produces when heating or environment cause is hung frost.
Description of drawings
Content of the present utility model is easier to be expressly understood in order to make, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein,
Fig. 1 is the schematic diagram of air source hot pump water heater the first embodiment of the present utility model;
Fig. 2 is the schematic diagram of air source hot pump water heater the second embodiment of the present utility model.
Description of reference numerals
The 1-compressor, 2-air cooler, 21-cold water inlet, 22-refrigerant exit, the 23-hot water outlet, 3-throttling arrangement, 31-input, 4-evaporimeter, the 5-boiler, 6-water accumulating disc, 7-pipeline, 8-drainpipe, the 9-regenerator, 10-gas-liquid separator, 11-defrost circuit, 12-the first magnetic valve, the 13-filter, 14-expansion valve, 15-temperature gate valve, the 16-high-voltage switch gear, 17-low tension switch, 18-the second magnetic valve.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.Should be understood that, the specific embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
The air source hot pump water heater that the first embodiment of the present utility model provides, as shown in Figure 1, comprise the evaporimeter 4, compressor 1, air cooler 2 and the throttling arrangement 3 that connect to form successively refrigerant circulation circuit by pipeline, wherein, the bottom of evaporimeter 4 is provided with water accumulating disc 6, and water accumulating disc 6 is connected with drainpipe 8, is provided with the pipeline 7 for the refrigerant circulation in the water accumulating disc 6, one end of pipeline 7 and the refrigerant exit 22 of air cooler 2 interconnect, and the input of the other end and throttling arrangement 3 interconnects.
Compressor 1 is used for the gas coolant of the gas coolant boil down to HTHP of low-temp low-pressure that evaporimeter 4 is refluxed.The output of compressor 1 is provided with high-voltage switch gear 16, and input is provided with low tension switch 17, carries out pressure control with the gaseous coolant to turnover compressor 1.In this first embodiment, compressor 1 can adopt existing any compressor, does not do concrete restriction at this.
Air cooler 2 interconnects by pressure piping with compressor 1, and the gas coolant that is used for the HTHP that 1 compression obtains to compressor carries out heat exchange makes its cooling liquid.One end of air cooler 2 has cold water inlet 21, and the other end has hot water outlet 23.Specific as follows described:
One end of described pressure piping connects the output of compressor 1, and the other end of described pressure piping is connected to the input of air cooler 2, so that the cold media gas of the HTHP of compressor 1 compression enters air cooler 2.Simultaneously, shown in arrow A among Fig. 1, extraneous cold water, for example the cold water that provides of running water pipe carries out heat exchange by corresponding pipeline configuration from cold media gas and the cold water that cold water inlet 21 enters air cooler 2 HTHPs air cooler 2, cold water absorbs heat and becomes hot water and enter corresponding heat storing and heat preserving water tank 5 from hot water outlet 23 discharges, and the gas coolant release heat of HTHP and liquefaction are discharged for the liquid coolant of middle temperature high pressure and from the refrigerant exit 22 of air cooler 2 and entered pipeline 7.
The cold water inlet of air cooler 2 goes out to be provided with temperature gate valve 15, thereby the leaving water temperature of hot water is controlled.
Evaporimeter 4 is used for liquid coolant is absorbed heat, and makes it be evaporated to the refrigerant of gaseous state.The output of evaporimeter 4 is connected with compressor 1 by tracheae.Particularly, shown in arrow B among Fig. 1, warm high-pressure liquid refrigerant enters evaporimeter 4 after by pipeline 7 and throttling arrangement 3 from air cooler 2 output, because the pressure of evaporimeter 4 reduces suddenly, liquid refrigerants evaporates rapidly at this and becomes gaseous state, simultaneously, under the effect of driven by motor axial-flow leaf, a large amount of air stream pervaporation device outer surfaces, airborne low temperature heat energy is absorbed by evaporimeter and is transferred to gaseous coolant, and air themperature reduces rapidly, becomes cold air and discharges or be disposed to the space for example in the kitchen that needs refrigeration, the gaseous coolant that absorbs certain heat energy then is back to compressor 1, enters next circulation.
Evaporimeter 4 can adopt the evaporimeter of existing any type, and for example finned evaporator is not specifically limited it at this.
Water accumulating disc 6 is used for assembling the condensed water that evaporimeter 4 produces in endothermic process, and passes through drainpipe 8 with outside the condensed water guide chamber.
Pipeline 7, be arranged in the water accumulating disc 6, the one end by connector for example three-way connection be connected in the refrigerant exit 22 of air cooler 2, the other end is connected in the input 31 of throttling arrangement 3, so that the middle temperature high-pressure liquid refrigerant of air cooler 2 outputs is by the pipeline 7 in the water accumulating disc 6, thereby icing in utilizing in self waste heat of warm high-pressure liquid refrigerant and the water accumulating disc 6 carries out heat exchange, when realization does not reduce the water outlet of water heater temperature, reaches good deicing effect.
Preferably, pipeline 7 is U-shaped layout in water accumulating disc 6, thereby increases refrigerant and the heat exchange contact area that freezes, and realizes better deicing effect.
The refrigerant liquid temperature that causes being used for deicing in the pipeline 7 in order to prevent the backflow of the refrigerant liquid after the deicing in the pipeline 7 reduces, preferably, be provided with the second magnetic valve 18, the second magnetic valves on the pipeline 7 and be arranged on the position that pipeline 7 is connected with the refrigerant exit 22 of air cooler 2.In addition, the second magnetic valve 18 can open or cut out to play the function that control piper 7 carries out deicing.
Pipeline 7 can adopt existing any tubing to make.Because copper product has good thermal conductivity, preferably, pipeline 7 adopts copper products to make, thereby it is icing that the heat energy of liquid refrigerants can be transferred to better, realizes better deicing effect.
Throttling arrangement 3 for the gas-liquid mixed refrigerant that the liquid refrigerants throttling of warm high pressure is become low-temp low-pressure, then being sent into the gas-liquid mixed refrigerant heat absorption evaporation in the evaporimeter 4.
In addition, as shown in Figure 1, the air source hot pump water heater that the first embodiment of the present utility model provides also comprises regenerator 9, this regenerator 9 has the first refrigerant entrance, the first refrigerant exit, the second refrigerant entrance and the second refrigerant exit, wherein, the refrigerant exit 22 of air cooler 2 is connected with the first refrigerant entrance and the pipeline 7 of regenerator 9 by three-way connection, the liquid refrigerants of warm high pressure is divided into two after refrigerant exit 22 outputs of air cooler 2 namely, one the tunnel enters pipeline 7, and another road enters regenerator 9; The input 31 of throttling arrangement 3 is connected with the first refrigerant exit and the pipeline 7 of regenerator 9 by three-way connection, i.e. the liquid refrigerants of the first refrigerant exit of the liquid refrigerants in the pipeline 7 and regenerator 9 output enters throttling arrangement 3.Simultaneously, the gas outlet of evaporimeter 4 is connected with the second refrigerant entrance of regenerator 9, and the air entry of compressor 1 is connected with the second refrigerant exit of regenerator 9.
Acting as of regenerator 9: the low-temp low-pressure gaseous coolant of the middle temperature high-pressure liquid refrigerant that air cooler 2 flows out and evaporimeter 4 outputs carries out heat exchange in regenerator 9, the temperature of middle temperature high-pressure liquid refrigerant is reduced again, simultaneously, the temperature of the low-temp low-pressure gaseous coolant of evaporimeter 4 outputs is raise again, thereby improve the heating energy efficiency ratio of whole water heater.
In addition, be provided with defroster duct 11 by the first magnetic valve 12 between the entrance of the output of compressor 1 and evaporimeter 4.Compressor 1, the first magnetic valve 12 and evaporimeter 4 form the defrosting system of air source hot pump water heater, and this defrosting system is controlled by the PLC controller.When the needs defrost, the PLC controller sends the defrost instruction, the first magnetic valve 12 closures, the gaseous coolant of the HTHP of compressor 1 output enters release heat in the evaporimeter 4 by the first magnetic valve 12, melt evaporimeter because the extension frost and snow of the evaporimeter 4 that the condensation frost that produces when heating or environment cause, be back to compressor 1 finally by crossing regenerator 9, so repeatedly evaporimeter heated, until frost and snow changes the water heating pattern over to automatically by the PLC controller after melting fully.
The fluid molecule that contains in the gaseous coolant for device 4 outputs that avoid evaporating causes liquid hammer to compressor 1, preferably, be connected with gas-liquid separator 10 between the second refrigerant exit of regenerator 9 and the compressor 1, thereby further guarantee the safe and stable operation of compressor 1.
Throttling arrangement 3 comprises filter 13 and the expansion valve 14 that connects successively, and expansion valve 14 is preferably electric expansion valve.One end of pipeline 7 can be connected to the input 31 of filter 13.
Refrigerant can be selected existing any cold-producing medium, and preferably, refrigerant is CO 2Cold-producing medium.
The air source hot pump water heater that the second embodiment of the present utility model provides, as shown in Figure 2, the air source hot pump water heater that provides except the connected mode of pipeline 7 and the first embodiment was different, other part-structures were all identical with the air source hot pump water heater that the first embodiment provides with principle.
As shown in Figure 2, an end of pipeline 7 is connected with the refrigerant exit 22 of air cooler 2 by three-way connection, and the other end is connected with the first refrigerant entrance of regenerator 9 by three-way connection.The flow direction of refrigerant is shown in black arrow among Fig. 2, liquid refrigerants after the deicing can mix mutually with the liquid refrigerants that the refrigerant exit 22 of air cooler 2 is exported, then the gaseous coolant that the first refrigerant entrance that enters regenerator 9 enters regenerator 9 and evaporimeter 4 outputs carries out heat exchange, then from the second refrigerant exit output of regenerator 9, enter evaporimeter 4 by filter 13 and expansion valve 14.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the utility model creation.

Claims (10)

1. air source hot pump water heater, comprise the evaporimeter (4), compressor (1), air cooler (2) and the throttling arrangement (3) that connect to form successively closed circuit, one end of described air cooler (2) has cold water inlet (21), the other end has hot water outlet (23), it is characterized in that
Also comprise the water accumulating disc (6) that is arranged on described evaporimeter (4) bottom and be arranged on the pipeline (7) that circulates for refrigerant in the described water accumulating disc (6), described water accumulating disc (6) is connected with drainpipe (8), one end of described pipeline (7) is connected with the refrigerant exit (22) of described air cooler (2), and the other end is connected with the input (31) of described throttling arrangement (3).
2. air source hot pump water heater according to claim 1 is characterized in that, described pipeline (7) is U-shaped layout in described water accumulating disc (6).
3. air source hot pump water heater according to claim 1 and 2 is characterized in that, described air source hot pump water heater also comprises regenerator (9), wherein,
The described refrigerant exit (22) of described air cooler (2) is connected with the first refrigerant entrance of described regenerator (9), and the described input (31) of described throttling arrangement (3) is connected with the first refrigerant exit of described regenerator;
The gas outlet of described evaporimeter (4) is connected with the second refrigerant entrance of described regenerator (9), and the air entry of described compressor (1) is connected with the second refrigerant exit of described regenerator (9).
4. air source hot pump water heater according to claim 3 is characterized in that, an end of described pipeline (7) is connected with the refrigerant exit (22) of described air cooler (2), and the other end is connected with the first refrigerant entrance of described regenerator (9).
5. air source hot pump water heater according to claim 3 is characterized in that, is provided with defroster duct (11) by the first magnetic valve (12) between described compressor (1) and the described evaporimeter (4).
6. according to claim 4 or 5 described air source hot pump water heaters, it is characterized in that, be connected with gas-liquid separator (10) between described regenerator (9) and the described compressor (1).
7. air source hot pump water heater according to claim 6 is characterized in that, described throttling arrangement (3) comprises filter (13) and the expansion valve (14) that connects successively.
8. air source hot pump water heater according to claim 7 is characterized in that, the described cold water inlet (21) of described air cooler (2) locates to be provided with temperature gate valve (15).
9. air source hot pump water heater according to claim 1 is characterized in that, described refrigerant is CO 2Cold-producing medium.
10. air source hot pump water heater according to claim 1 is characterized in that, is provided with the second magnetic valve (18) on the described pipeline (7).
CN 201220608379 2012-11-15 2012-11-15 Air source heat pump water heater Expired - Lifetime CN202853111U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102914047A (en) * 2012-11-15 2013-02-06 浙江正理生能科技有限公司 Air source heat pump water heater
CN105402886A (en) * 2015-11-12 2016-03-16 海宁金能热水器有限公司 Air energy water heater with clothes drying function
CN106016871A (en) * 2016-05-24 2016-10-12 昆明理工大学 Method and device for restraining low-temperature running frosting of air source heat pump water heater
CN108224774A (en) * 2017-12-07 2018-06-29 合肥通用机械研究院 A kind of carbon dioxide heat pump water heater with defrosting
CN109028628A (en) * 2017-06-12 2018-12-18 浙江盾安机电科技有限公司 A kind of carbon dioxide heat pump device
CN110567208A (en) * 2019-09-23 2019-12-13 珠海格力电器股份有限公司 Unit anti-freezing device, air conditioning unit and air conditioning unit control method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102914047A (en) * 2012-11-15 2013-02-06 浙江正理生能科技有限公司 Air source heat pump water heater
CN102914047B (en) * 2012-11-15 2015-10-07 浙江正理生能科技有限公司 Air source hot pump water heater
CN105402886A (en) * 2015-11-12 2016-03-16 海宁金能热水器有限公司 Air energy water heater with clothes drying function
CN105402886B (en) * 2015-11-12 2018-04-06 海宁金能热水器有限公司 A kind of air-source water heater with clothes drying function
CN106016871A (en) * 2016-05-24 2016-10-12 昆明理工大学 Method and device for restraining low-temperature running frosting of air source heat pump water heater
CN106016871B (en) * 2016-05-24 2018-10-02 昆明理工大学 A kind of method and its device inhibiting air source hot pump water heater cold operation frosting
CN109028628A (en) * 2017-06-12 2018-12-18 浙江盾安机电科技有限公司 A kind of carbon dioxide heat pump device
CN108224774A (en) * 2017-12-07 2018-06-29 合肥通用机械研究院 A kind of carbon dioxide heat pump water heater with defrosting
CN110567208A (en) * 2019-09-23 2019-12-13 珠海格力电器股份有限公司 Unit anti-freezing device, air conditioning unit and air conditioning unit control method

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Effective date of registration: 20180918

Address after: 325600 Yue Wan Pioneer Park, Yueqing bay port, Yueqing, Zhejiang

Patentee after: Zhejiang De Fu New Energy Technology Co.,Ltd.

Address before: 325609 Pu Qi characteristic industrial park, Yueqing, Wenzhou, Zhejiang

Patentee before: ZHEJIANG AMA & HIEN TECHNOLOGY Co.,Ltd.

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Granted publication date: 20130403

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