CN203010922U - Single-stage-compressing double-stage-heating high-temperature heat pump water heater - Google Patents

Single-stage-compressing double-stage-heating high-temperature heat pump water heater Download PDF

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Publication number
CN203010922U
CN203010922U CN201220595298.1U CN201220595298U CN203010922U CN 203010922 U CN203010922 U CN 203010922U CN 201220595298 U CN201220595298 U CN 201220595298U CN 203010922 U CN203010922 U CN 203010922U
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China
Prior art keywords
communicated
valve
temperature
stop valve
check valve
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Expired - Fee Related
Application number
CN201220595298.1U
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Chinese (zh)
Inventor
陈学锋
徐言生
何钦波
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Shunde Vocational and Technical College
Shunde Polytechnic
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Shunde Vocational and Technical College
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Priority to CN201220595298.1U priority Critical patent/CN203010922U/en
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Publication of CN203010922U publication Critical patent/CN203010922U/en
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Abstract

The utility model relates to a single-stage-compressing double-stage-heating high-temperature heat pump water heater. The single-stage-compressing double-stage-heating high-temperature heat pump water heater comprises a compressor, a four-way valve, a high-temperature water tank, an intermediate-temperature water tank, a first one-way valve, a high-temperature condenser, an intermediate-temperature condenser and the like. An a end of the four-way valve is communicated with an outlet of the compressor, and a c end of the four-way valve is communicated with an inlet of the compressor; a high-temperature water outlet is formed in the upper portion of the high-temperature water tank, an intermediate-temperature water outlet is formed in the upper portion of the intermediate-temperature water tank, a cold water inlet is formed in the lower portion of the intermediate-temperature water tank, and the high-temperature condenser is arranged in the high-temperature water tank; the intermediate-temperature condenser is arranged in the intermediate-temperature water tank, and one end of the intermediate-temperature condenser is communicated with an d end of the four-way valve; one end of a first stop valve and one end of a second stop valve are both communicated with the other end of the intermediate-temperature condenser; and after a second one-way valve and a first throttling device are connected in parallel, one end of the second one-way valve is communicated with one end of the high-temperature condenser, and the other end of the second one-way valve is communicated with the other end of the first stop valve. The single-stage-compressing double-stage-heating high-temperature heat pump water heater is high in comprehensive energy efficiency ratio, good in economy and stable in operation.

Description

Single stage compress double-stage heating formula high temperature thermal pump water heater
Technical field
The utility model relates to a kind of single stage compress double-stage heating formula high temperature thermal pump water heater.
Background technology
Heat pump techniques is that a kind of high efficient energy sources are utilized technology, is widely used in life and production.At present, the general the highest hot water temperature who produces of heat-pump hot-water unit of single stage compress single-stage heating is no more than 60 ℃, and the reduction along with the external heat source temperature, the refrigeration system working condition also can further worsen, Energy Efficiency Ratio will further reduce, and the hot water maximum temperature of generation also will further reduce.And needed hot water is between 60 ℃~80 ℃ at real life and in the many occasions in producing, and the heat pump techniques that heats as employing single stage compress single-stage will be difficult to realize.Simultaneously, also have the defrost problem due to heat pump in running, heat pump will cause that in defrost process the hot water temperature fluctuates.Only have effectively to address the above problem, heat pump techniques is more widely used.
Summary of the invention
The purpose of this utility model is overcome the deficiencies in the prior art and a kind of single stage compress double-stage heating formula high temperature thermal pump water heater is provided, can be under the heat source temperature more than the environment temperature of-15 ℃, the hot water of round-the-clock generation below 80 ℃, and the hot water machine comprehensive energy efficiency is than high, good economy performance, stable.
In order to achieve the above object, the utility model is achieved in that it is a kind of single stage compress double-stage heating formula high temperature thermal pump water heater, is characterized in that comprising:
Compressor, cross valve, a end of described cross valve is communicated with the outlet of described compressor, and the c end of cross valve is communicated with the entrance of compressor;
High-temperature water tank and middle reservoir are provided with the high-temperature water outlet on the top of described high-temperature water tank, be provided with middle warm water outlet on the top of described middle reservoir, are provided with the cold water water inlet in the bottom of middle reservoir;
The first check valve, the entrance of described the first check valve is communicated with described middle reservoir, and the outlet of the first check valve is communicated with described high-temperature water tank;
The high temperature condenser, described high temperature condenser is located in high-temperature water tank;
Middle temperature condenser, described middle temperature condenser is located in middle reservoir, and an end of middle temperature condenser is communicated with the d of described cross valve end;
The first stop valve and the second stop valve, described the first stop valve all is communicated with the other end of described middle temperature condenser with an end of the second stop valve;
The second check valve and first throttle device, described the second check valve is communicated with an end of described high temperature condenser with the mutual rear end in parallel of first throttle device, the other end is communicated with the other end of the first stop valve, and the outlet of the second check valve is communicated with an end of high temperature condenser;
The 3rd stop valve and the 3rd check valve, an end of described the 3rd stop valve is communicated with the b of cross valve end, and the entrance of the other end of the 3rd stop valve and the 3rd check valve all is communicated with the other end of high temperature condenser;
The 4th stop valve, an end of described the 4th stop valve are communicated with the other end of the second stop valve and the outlet of the 3rd check valve respectively;
External boiler, the second throttling arrangement, the 3rd throttling arrangement and the 4th check valve, described the 3rd throttling arrangement is with in parallel with the second throttling arrangement again after the 4th check valve is connected, loop one end after parallel connection is communicated with the other end of the 4th stop valve, the other end of shunt circuit is communicated with an end of external boiler, and the entrance of described the 4th check valve is communicated with an end of external boiler or an end of the 3rd throttling arrangement;
The 5th stop valve, an end of described the 5th stop valve is communicated with the other end of external boiler, and the other end of the 5th stop valve is communicated with the b of cross valve end.
The entrance of described the first check valve is communicated with the top of described middle reservoir.
The utility model advantage compared with prior art is:
1) can be under the heat source temperature more than the environment temperature of-15 ℃, the hot water of round-the-clock generation below 80 ℃, higher Energy Efficiency Ratio;
2) source pump is when defrost, and the coolant-temperature gage in high-temperature water tank is unaffected, and it is constant that the hot water temperature keeps;
3) the hot water machine comprehensive energy efficiency is than high, and good economy performance is stable.
Description of drawings
Fig. 1 is structure of the present utility model and schematic flow sheet.
The specific embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, in figure from start to finish same or similar label represent same or similar element or the element with identical or similar functions.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, term " first ", " second ", " the 3rd ", " the 4th " reach " the 5th " and only are used for describing purpose, and can not be interpreted as indication or hint relative importance.
As shown in Figure 1, it is a kind of single stage compress double-stage heating formula high temperature thermal pump water heater, comprises compressor 1, cross valve 2, high-temperature water tank 4, middle reservoir 7, the first check valve 3, the second check valve 9, the 3rd check valve 12, the 4th check valve 14, high temperature condenser 5, middle temperature condenser 6, the first stop valve 10, the second stop valve 11, the 3rd stop valve 17, the 4th stop valve 13, the 5th stop valve 19, first throttle device 8, the second throttling arrangement 15, the 3rd throttling arrangement 16 and external boiler 18; The a end of described cross valve 2 is communicated with the outlet of described compressor 1, and the c end of cross valve 2 is communicated with the entrance of compressor 1; Be provided with high-temperature water outlet 41 on the top of described high-temperature water tank 4, be provided with middle warm water outlet 71 on the top of described middle reservoir 7, be provided with cold water water inlet 72 in the bottom of middle reservoir 71; The entrance of described the first check valve 3 is communicated with described middle reservoir 7, and the outlet of the first check valve 3 is communicated with described high-temperature water tank 4; Described high temperature condenser 5 is located in high-temperature water tank 4; Described middle temperature condenser 6 is located in middle reservoir 7, and an end of middle temperature condenser 6 is communicated with the d of described cross valve 2 end; Described the first stop valve 10 all is communicated with the other end of described middle temperature condenser 6 with an end of the second stop valve 11; Described the second check valve 9 is communicated with an end of described high temperature condenser 5 with the mutual rear end in parallel of first throttle device 8, and the other end is communicated with the other end of the first stop valve 10, and the outlet of the second check valve 9 is communicated with an end of high temperature condenser 5; One end of described the 3rd stop valve 17 is communicated with the b of cross valve 2 end, and the entrance of the other end of the 3rd stop valve 17 and the 3rd check valve 12 all is communicated with the other end of high temperature condenser 5; One end of described the 4th stop valve 13 is communicated with the other end of the second stop valve 11 and the outlet of the 3rd check valve 12 respectively; Described the 3rd throttling arrangement 16 is with in parallel with the second throttling arrangement 15 again after the 4th check valve 14 is connected, loop one end after parallel connection is communicated with the other end of the 4th stop valve 13, the other end of shunt circuit is communicated with an end of external boiler 18, and the entrance of described the 4th check valve 14 is communicated with an end of external boiler 18 or an end of the 3rd throttling arrangement 16; One end of described the 5th stop valve 19 is communicated with the other end of external boiler 18, and the other end of the 5th stop valve 19 is communicated with the b end of cross valve 2.
During work, before unlatching, cold water therefrom reservoir 7 flows to high-temperature water tank 4 through the first check valve 3, this moment, the temperature of two water tanks was low temperature, when carrying out the one-level heating, the first stop valve 10, the 4th stop valve 13, the 5th stop valve 19 are opened, and stop valve the second stop valve 11, the 3rd stop valve 17 close
close, cross valve 2 is in forward condition, cold-producing medium becomes high temperature and high pressure gas after single-stage compressor 1 compression, mouth of pipe a through cross valve 2 flows to mouth of pipe d, enter the middle temperature condenser 6 in reservoir 7, cold water in centering reservoir 7 heats, therefrom warm condenser 6 cold-producing medium out is through the first stop valve 10, the second check valve 9, enter the high temperature condenser 5 in high-temperature water tank 4, cold water in high-temperature water tank 4 is heated, from high temperature condenser 5 refrigerant liquid out through the 3rd check valve 12, the 4th stop valve 13, become low-temp low-pressure liquid after the second throttling arrangement 15 throttlings, then go to external boiler 18, absorb the external heat source heat by external boiler 18 and become low-temp low-pressure gas, again through the 5th stop valve 19, the mouth of pipe b that goes to cross valve 2 flows to mouth of pipe c, get back at last single-stage compressor 1, so circulation, until the cold water temperature in middle reservoir 7 and high-temperature water tank 4 reaches the middle temperature ceiling temperature of setting.after this, heat pump water-heating machine changes secondary heating running status over to, at this moment, the first stop valve 10, the 3rd stop valve 17 is opened, the second stop valve 11, the 4th stop valve 13, the 5th stop valve 19 is closed, cross valve 2 is in reverse state, cold-producing medium becomes high temperature and high pressure gas after single-stage compressor 1 compression, mouth of pipe a through cross valve 2 flows to mouth of pipe b, through the 3rd stop valve 17, enter the high temperature condenser 5 in high-temperature water tank 4, middle warm water in high-temperature water tank 4 is further heated, become low-temp low-pressure liquid from high temperature condenser 5 refrigerant liquid out after 8 throttlings of first throttle device, then go to middle temperature condenser 6 in middle reservoir 7 through the first stop valve 10, heat by middle warm water in reservoir 6 in middle temperature condenser 6 absorptions becomes low-temp low-pressure gas, mouth of pipe d through cross valve 2 flows to mouth of pipe c again, get back at last single-stage compressor 1, so circulation, until the coolant-temperature gage in high-temperature water tank 4 reaches the high-temperature temperature of setting.heat pump water-heating machine is in secondary heating process, along with middle temperature condenser 6 constantly therefrom absorbs heat in reservoir 7, water temperature in middle reservoir 7 will progressively be reduced to the lower limit of warm water temperature in setting, at this moment, heat pump water-heating machine need be transferred under the one-level heated condition and move, once heating operation difference when itself and aforementioned hot pump hot water machine have just brought into operation is that water temperature in high-temperature water tank 4 is higher than the water temperature in middle reservoir 7, when therefore once heating moves, only centering reservoir 7 heating, its workflow is as follows: the second stop valve 11, the 4th stop valve 13, the 5th stop valve 19 is opened, the first stop valve 10, the 3rd stop valve 17 is closed, cross valve 2 is in forward condition, cold-producing medium becomes high temperature and high pressure gas after single-stage compressor 1 compression, mouth of pipe a through cross valve 2 flows to mouth of pipe d, enter the middle temperature condenser 6 in reservoir 7, water in centering reservoir 7 heats, therefrom warm condenser 6 refrigerant liquid out is through the second stop valve 11, the 4th stop valve 13, become low-temp low-pressure liquid again after the second throttling arrangement 15 throttlings, then go to external boiler 18, absorb the external heat source heat by external boiler 18 and become low-temp low-pressure gas, again through the 5th stop valve 19, the mouth of pipe b that goes to cross valve 2 flows to mouth of pipe c, get back at last single-stage compressor 1, so circulation, until middle reservoir 7 coolant-temperature gages reach the middle temperature ceiling temperature of setting.After this, heat pump changes aforementioned secondary mode of heating over to again and moves.
When heat pump water-heating machine external boiler 18 needs defrost, system changes under the defrost running status and moves, its flow process is as follows: the second stop valve 11, the 4th stop valve 13, the 5th stop valve 19 are opened, the first stop valve 10, the 3rd stop valve 17 are closed, cross valve 2 is in reverse state, and cold-producing medium becomes high temperature and high pressure gas after single-stage compressor 1 compression, flow to mouth of pipe b through the mouth of pipe a of cross valve 2, enter through the 5th stop valve 19, to external boiler 18 defrosts.Become low-temp low-pressure liquid from external boiler 18 refrigerant liquid out after the 3rd throttling arrangement 16, the 4th check valve 14 throttlings and the second throttling arrangement 15 throttlings, then go to middle temperature condenser 6 in middle reservoir 7 through the 4th stop valve 13, the second stop valve 11, the heat of middle warm water in absorbing by middle temperature condenser 6 in reservoir 6 becomes low-temp low-pressure gas, mouth of pipe d through cross valve 2 flows to mouth of pipe c again, get back at last single-stage compressor 1, so circulation is until external boiler 18 defrosts are complete.
In the present embodiment, the entrance of described the first check valve 3 is communicated with the top of described middle reservoir 7, the hot water effluent of reservoir 7 amount in can improving like this.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present utility model and aim can be carried out multiple variation, modification, replacement and distortion to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.

Claims (2)

1. single stage compress double-stage heating formula high temperature thermal pump water heater is characterized in that comprising:
Compressor (1), cross valve (2), a end of described cross valve (2) is communicated with the outlet of described compressor (1), and the c end of cross valve (2) is communicated with the entrance of compressor (1);
High-temperature water tank (4) and middle reservoir (7), be provided with high-temperature water outlet (41) on the top of described high-temperature water tank (4), be provided with middle warm water outlet (71) on the top of described middle reservoir (7), be provided with cold water water inlet (72) in the bottom of middle reservoir (71);
The first check valve (3), the entrance of described the first check valve (3) is communicated with described middle reservoir (7), and the outlet of the first check valve (3) is communicated with described high-temperature water tank (4);
High temperature condenser (5), described high temperature condenser (5) are located in high-temperature water tank (4);
Middle temperature condenser (6), described middle temperature condenser (6) are located in middle reservoir (7), and an end of middle temperature condenser (6) is communicated with the d end of described cross valve (2);
The first stop valve (10) and the second stop valve (11), described the first stop valve (10) all is communicated with the other end of described middle temperature condenser (6) with an end of the second stop valve (11);
The second check valve (9) and first throttle device (8), described the second check valve (9) is communicated with an end of described high temperature condenser (5) with the mutual rear end in parallel of first throttle device (8), the other end is communicated with the other end of the first stop valve (10), and the outlet of the second check valve (9) is communicated with an end of high temperature condenser (5);
The 3rd stop valve (17) and the 3rd check valve (12), one end of described the 3rd stop valve (17) is communicated with the b end of cross valve (2), and the entrance of the other end of the 3rd stop valve (17) and the 3rd check valve (12) all is communicated with the other end of high temperature condenser (5);
The 4th stop valve (13), an end of described the 4th stop valve (13) are communicated with the other end of the second stop valve (11) and the outlet of the 3rd check valve (12) respectively;
External boiler (18), the second throttling arrangement (15), the 3rd throttling arrangement (16) and the 4th check valve (14), described the 3rd throttling arrangement (16) is with in parallel with the second throttling arrangement (15) again after the 4th check valve (14) is connected, loop one end after parallel connection is communicated with the other end of the 4th stop valve (13), the other end of shunt circuit is communicated with an end of external boiler (18), and the entrance of described the 4th check valve (14) is communicated with an end of external boiler (18) or an end of the 3rd throttling arrangement (16);
The 5th stop valve (19), an end of described the 5th stop valve (19) is communicated with the other end of external boiler (18), and the other end of the 5th stop valve (19) is communicated with the b end of cross valve (2).
2. single stage compress double-stage heating formula high temperature thermal pump water heater according to claim 1, is characterized in that the entrance of described the first check valve (3) is communicated with the top of described middle reservoir (7).
CN201220595298.1U 2012-11-13 2012-11-13 Single-stage-compressing double-stage-heating high-temperature heat pump water heater Expired - Fee Related CN203010922U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220595298.1U CN203010922U (en) 2012-11-13 2012-11-13 Single-stage-compressing double-stage-heating high-temperature heat pump water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201220595298.1U CN203010922U (en) 2012-11-13 2012-11-13 Single-stage-compressing double-stage-heating high-temperature heat pump water heater

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CN203010922U true CN203010922U (en) 2013-06-19

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9322577B2 (en) 2014-02-25 2016-04-26 General Electric Company Water heater appliances and methods for operating same
CN110762888A (en) * 2019-10-17 2020-02-07 广东纽恩泰新能源科技发展有限公司 Air energy heat pump system and control method thereof
CN110762887A (en) * 2019-10-17 2020-02-07 广东纽恩泰新能源科技发展有限公司 Multifunctional air energy heat pump system and control method thereof
WO2021082320A1 (en) * 2019-10-29 2021-05-06 青岛海尔新能源电器有限公司 Microchannel heat exchanger, heat pump water heater and control method therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9322577B2 (en) 2014-02-25 2016-04-26 General Electric Company Water heater appliances and methods for operating same
CN110762888A (en) * 2019-10-17 2020-02-07 广东纽恩泰新能源科技发展有限公司 Air energy heat pump system and control method thereof
CN110762887A (en) * 2019-10-17 2020-02-07 广东纽恩泰新能源科技发展有限公司 Multifunctional air energy heat pump system and control method thereof
WO2021082320A1 (en) * 2019-10-29 2021-05-06 青岛海尔新能源电器有限公司 Microchannel heat exchanger, heat pump water heater and control method therefor

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130619

Termination date: 20161113