CN201074906Y - High-efficiency air source heat pump water heater being suitable for broad temperature surroundings - Google Patents
High-efficiency air source heat pump water heater being suitable for broad temperature surroundings Download PDFInfo
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- CN201074906Y CN201074906Y CNU2007201018046U CN200720101804U CN201074906Y CN 201074906 Y CN201074906 Y CN 201074906Y CN U2007201018046 U CNU2007201018046 U CN U2007201018046U CN 200720101804 U CN200720101804 U CN 200720101804U CN 201074906 Y CN201074906 Y CN 201074906Y
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- heat exchanger
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Abstract
The utility model relates to a high efficiency air source heat pump type water heater suitable for wide temperature environment. The utility model comprises an outdoor air heat exchanger and a refrigerant tube heating hot water tank. An energy coupling heat exchanger is arranged to match the heat exchanger and the hot water tank. A first end of the coupling heat exchanger is connected with a low backpressure and low temperature compressor, an expansion valve and the outdoor air heat exchanger so as to form an air source heat pump refrigerant circulation loop. A second end of the coupling heat exchanger is connected with a middle-high temperature compressor, the expansion valve and the hot water tank so as to form a manpower source heat pump water-heating refrigerant circulation loop. The air source heat pump and the manpower source heat pump form a two-level heat pump water heating system. A bypass refrigerant tube provided with a switching valve is respectively connected with the air exhaust ends and the air intake ends of two compressors so as to form a single compressor heat pump operation water-heating system. The utility model can realize high efficiency operation in the outdoor temperature under subzero 45 DEG C and can provide hot water with the high temperature of 85 DEG C. The utility model also can shift a single-level and double-level heat pump operation mode according to environment temperature so as to save power resource.
Description
Technical field
The utility model relates to air source heat pump type water heater, is specifically related to a kind of highly effective air source heat pump type water heater of suitable wide temperature environment.
Background technology
At present, the main air source heat pump type water heater of forming by compressor, expansion valve, outdoor air heat exchanger and refrigerant pipe heated type boiler, adopt the single-stage compressor configuration structure, and its compressor is a high temperature compressed machine in the middle and high back pressure type, and the heating efficiency of high temperature compressed machine under low temperature environment is very low in the middle and high back pressure type, when temperature was low to moderate-5 ℃, its heating efficiency was near zero.Therefore, unless increase auxiliary electric heater unit, present air source heat pump type water heater can't be lower than effectively operation under 0 ℃ the low temperature environment.Even and move being higher than under 0 ℃ the environment temperature, the maximum water temperature that present air source heat pump type water heater can provide is below 55 ℃, and being difficult to be applicable to needs water temperature to use in the occasion more than 55 ℃.
Summary of the invention
The purpose of this utility model is at the problems referred to above, provide a kind of need not to be equipped with auxiliary electric heater unit promptly can be under low temperature environment efficient heating operation, and can satisfy the highly effective air source heat pump type water heater of the suitable wide temperature environment of high temperature water requirement.
The technical scheme that realizes above-mentioned purpose is: a kind of highly effective air source heat pump type water heater of suitable wide temperature environment, it includes outdoor air heat exchanger and refrigerant pipe heated type boiler, match with outdoor air heat exchanger and refrigerant pipe heated type boiler and to be equipped with an energy coupled heat exchanger, the once end of its coupled heat exchanger connects the air source heat pump compressor through refrigerant pipe, expansion valve and outdoor air heat exchanger are formed the air source heat pump refrigerant circulation loop, the secondary terminals of coupled heat exchanger connects artificial source's heat pump compressor through refrigerant pipe, expansion valve and boiler are formed artificial source's heat pump water heating and cooling agent closed circuit, its air source heat pump compressor is low back pressure type cryogenic compressor, during artificial source's heat pump compressor is, high temperature compressed machine in the high back pressure type, its air source heat pump and artificial source's heat pump are formed two-stage heat-pump-type water heater funnel; At the bypass refrigerant pipe that the exhaust port side and the air entry end of two compressors is connected with the configuration transitions valve respectively, constitute single-stage compressor operation of heat pump water heating system.
The utility model adopts air source heat pump and artificial source's heat pump configuration structure, and the compressor of air source heat pump is set to low back pressure type cryogenic compressor, its air source heat pump extracts the low temperature heat energy in the outdoor low temperature and exports as artificial heat, for artificial source's heat pump afterwards provides a desirable artificial heat, assurance artificial source heat pump efficiently heats under safety, energy-conservation operating mode hot water is provided, and the water supply requirement of high-temperature-hot-water occasion to water heater of can satisfying the demand.
The utility model is compared with existing air source heat pump type water heater, has following characteristics:
1, can be low to moderate at outside air temperature under-45 ℃ the environment, need not additional auxiliary electric heater unit and the high efficiency hot water operation that provides is provided.
2, leaving water temperature can be up to 85 ℃.
3, utilize the bypass refrigerant loop of configuration, can carry out single-stage heat pump water heating operation, thereby make water heater adjust the method for operation, when satisfying, save electric power energy with the hot water needs according to outdoor environment temperature.
Description of drawings
Accompanying drawing is the structural representation of the highly effective air source heat pump type water heater of this suitable wide temperature environment.
The specific embodiment
In conjunction with the accompanying drawings the specific embodiment of the present utility model is described.
As accompanying drawing, the highly effective air source heat pump type water heater of this suitable wide temperature environment includes outdoor air heat exchanger 2 and refrigerant pipe heated type boiler 3, its outdoor air heat exchanger can adopt the surface cooling heat exchanger, refrigerant pipe heated type boiler can be selected the double pipe heat exchanger type, and vertical or horizontal shell coil-type heat exchanger and shell-type helix tube type etc. are all kinds heat exchanger of medium with the cold-producing medium.Matching with heat exchanger 2 and boiler 3 is equipped with an energy coupled heat exchanger 5, and it is the various heat exchanger types of medium with the cold-producing medium that its heat exchanger 5 can be selected what be used for that the cold-producing medium heat exchange property is good, efficient is high for use.The once end of its coupled heat exchanger connects low back pressure type cryogenic compressor 1, electric expansion valve 4 and outdoor air heat exchanger 2 through refrigerant pipe and forms the air source heat pump refrigerant circulation loop, the secondary terminals of coupled heat exchanger connects high temperature compressed machine 6 in the middle and high back pressure type, electric expansion valve 7 and boiler 3 through refrigerant pipe and forms artificial source's heat pump water heating and cooling agent closed circuit, and its air source heat pump and artificial source's heat pump are formed two-stage heat-pump-type water heater funnel.At the bypass refrigerant pipe that the exhaust port side and the air entry end of compressor 1, compressor 6 is connected with the configuration transitions valve respectively, constitute single compressor operation of heat pump water heating system.
As accompanying drawing, two-stage heat pump water heating operation of the present utility model is finished by the open and close of the electronic conversion valve in the system of being disposed at 8,9,10,11,12,13,14 and 15 with the mutual conversion of single-stage heat pump water heating operation.
Operation principle to this water heater is described as follows in conjunction with the accompanying drawings:
Under-20 ℃ to-45 ℃ special low-temperature environments, double-compressor moves simultaneously.Its operation principle is that the compressor 1 high temperature refrigerant gas of discharging is through the once end condensation heat release of valve 12 to energy coupled heat exchanger 5, the cold-producing medium that becomes liquid is the low-temperature heat quantity in the inlet chamber external heat exchanger 2 evaporation absorption chamber outer air to expansion valve 4 throttlings, becoming gas refrigerant and repeat above-mentioned circulation after valve 13 is sucked to continue to compress by compressor 1, is artificial heat of the stable output of secondary terminals of energy coupled heat exchanger 5.Compressor 6 sucks the gaseous refrigerant of being brought in by heat exchanger 5 secondaries, compressed discharge high temperature refrigerant gas, its high temperature refrigerant gas heats water through the heating tube that valve 8 enters boiler 3, condensed cold-producing medium enters energy coupled heat exchanger 5 after expansion valve 7 throttlings secondary terminals continues the evaporation absorption by once holding the airborne heat of sending here continually, gaseous refrigerant after the evaporation continues to be sucked by compressor 6 through valve 9, repeat above-mentioned circulation, finish heating water in the boiler.
The single compressor operation is divided into dual mode.Under 5 ℃ to-20 ℃ low-temperature environment, compressor 6 is out of service, finishes water heating operation separately by compressor 1.The high-temperature gas cold-producing medium of its compressor 1 output heats water through the heating tube that valve 11 enters boiler 3, condensed liquid refrigerant is through valve 10 heat in the inlet chamber outer air heat exchanger 2 evaporation absorption chamber outer air to expansion valve 4 throttlings, cold-producing medium after the gasification is sucked by compressor 1 through valve 13 and continues compression, repeat above-mentioned circulation, finish the water heating operation of single compressor low-temperature environment air source heat pump.Be higher than under 5 ℃ the temperature environment, compressor 1 is out of service, in finishing separately by compressor 6, water heating operation under the high atmospheric temperature, this moment, the high-temperature gas cold-producing medium of compressor 6 discharges heated water through the heating tube that valve 8 enters boiler 3, condensed liquid refrigerant is to expansion valve 7 throttlings, enter the heat that outdoor air heat exchanger 2 evaporates in the absorption chamber outer air by valve 14, cold-producing medium after the gasification is by the suction end of valve 15 to compressor 6, repeated above-mentioned circulation after compressor 6 suctions, finished the water heating operation that single compressor is higher than temperature environment air source heat pump more than 5 ℃.
The compressor of this air source heat pump type water heater adopts frequency conversion or increases the control of unloading energy, and expansion valve adopts electric expansion valve, and valve can be realized control conversion automatically after adopting powered version.
Claims (1)
1. the highly effective air source heat pump type water heater of a suitable wide temperature environment, include outdoor air heat exchanger (2) and refrigerant pipe heated type boiler (3), it is characterized in that: it disposes an energy coupled heat exchanger (5), the once end of its coupled heat exchanger connects air source heat pump compressor (1) through refrigerant pipe, expansion valve (4) and outdoor air heat exchanger (2) are formed the air source heat pump refrigerant circulation loop, the secondary terminals of coupled heat exchanger connects artificial source's heat pump compressor (6) through refrigerant pipe, expansion valve (7) and boiler (3) are formed artificial source's heat pump water heating and cooling agent closed circuit, its air source heat pump compressor (1) is low back pressure type cryogenic compressor, during artificial source's heat pump compressor (6) is, high temperature compressed machine in the high back pressure type, its air source heat pump and artificial source's heat pump are formed two-stage heat-pump-type water heater funnel; The bypass refrigerant pipe that is connected with the configuration transitions valve respectively at the exhaust port side and the air entry end of compressor (1), compressor (6) constitutes single compressor operation of heat pump water heating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201018046U CN201074906Y (en) | 2007-06-27 | 2007-06-27 | High-efficiency air source heat pump water heater being suitable for broad temperature surroundings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201018046U CN201074906Y (en) | 2007-06-27 | 2007-06-27 | High-efficiency air source heat pump water heater being suitable for broad temperature surroundings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201074906Y true CN201074906Y (en) | 2008-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201018046U Expired - Fee Related CN201074906Y (en) | 2007-06-27 | 2007-06-27 | High-efficiency air source heat pump water heater being suitable for broad temperature surroundings |
Country Status (1)
| Country | Link |
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| CN (1) | CN201074906Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016738A (en) * | 2016-07-08 | 2016-10-12 | 广州市唯金空调科技有限公司 | Similar overlapping type system ultra-low temperature type heat pump water heater |
| CN106642680A (en) * | 2016-11-10 | 2017-05-10 | 江苏海雷德蒙新能源有限公司 | Improved air source heat pump hot water system |
-
2007
- 2007-06-27 CN CNU2007201018046U patent/CN201074906Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016738A (en) * | 2016-07-08 | 2016-10-12 | 广州市唯金空调科技有限公司 | Similar overlapping type system ultra-low temperature type heat pump water heater |
| CN106642680A (en) * | 2016-11-10 | 2017-05-10 | 江苏海雷德蒙新能源有限公司 | Improved air source heat pump hot water system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 |