CN105276864A - Variable-component refrigerant heat pump hot water unit - Google Patents
Variable-component refrigerant heat pump hot water unit Download PDFInfo
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- CN105276864A CN105276864A CN201410329417.2A CN201410329417A CN105276864A CN 105276864 A CN105276864 A CN 105276864A CN 201410329417 A CN201410329417 A CN 201410329417A CN 105276864 A CN105276864 A CN 105276864A
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Abstract
The invention discloses a variable-component refrigerant heat pump hot water unit which comprises a compressor, a condensing heat exchanger, a liquid storage tank, an outdoor heat exchanger, a gas-liquid separator, a rectifier filled with refrigerants and a coil arranged in the rectifier. The coil and a first electromagnetic valve are arranged between an outlet of the compressor and an inlet of the condensing heat exchanger in parallel. Two branches connected in parallel are arranged between the liquid storage tank and the outdoor heat exchanger. The first branch is formed by connecting an outlet of the liquid storage tank, a third electromagnetic valve, a first throttling valve and an inlet of the outdoor heat exchanger in sequence. The second branch is formed by connecting the outlet of the liquid storage tank, a fourth electromagnetic valve, a second throttling valve, the rectifier, a second electromagnetic valve and the inlet of the outdoor heat exchanger in sequence. The variable-component refrigerant heat pump hot water unit is additionally provided with the rectifier and the electromagnetic valves so that conversion of the refrigerants of different components can be achieved according to the outdoor environment temperature, and the variable-component refrigerant heat pump hot water unit has high adaptability to the environment temperature.
Description
Technical field
The invention belongs to heat pump water-heating machine technical group field, particularly a kind of change component refrigerants heat-pump hot-water unit.
Background technology
Along with improving constantly of living standards of the people, the requirement of people to living environment and thermal comfort is also increased day by day.Traditional building and heating mode energy consumption is high, seriously polluted, and the building and heating technology that development is cleaned becomes particularly urgent.Current heat pump techniques cannot conform temperature wide region change, especially at cold district, winter, outdoor temperature was low, traditional single-stage heat pump compression ratio is high, heating performance sharply declines, cisco unity malfunction, but heat relative to the whole year, time accounting in the whole year that winter environment temperature is low is especially less, only adopt high pressure ratio or Two-stage Compression system for solving heat supply in winter, the situation that system will break down at higher ambient temperatures or efficiency is lower, thus the economy of system becomes very poor.
Chinese patent ZL98118641.6 discloses a kind of heat pump becoming component refrigerants, the refrigerant heat rectifying column that this system adopts condenser to flow out, the cold-producing medium of low pressure component is isolated in rectifying column, thus allow more high pressure components participate in the middle of circulation, reach the effect strengthening heating capacity under low temperature environment, but there is following problem in this system: 1) refrigerant temperature of condenser outflow is not high, and rectification effect is poor; 2) to put into practice difficulty larger in anti-rectifying; 3) system complex, cost is too high.Chinese patent ZL98118646.7 discloses a kind of heat pump becoming component refrigerants, this system with the addition of the auxiliary coil pipe of connection in parallel below off-premises station, when heating mode is opened, bracket panel tube inlet is closed and outlet is opened, compressor is by high-pressure section sucking-off larger for volatility, then closing outlet valve stays low-pressure section inside auxiliary coil pipe, but there is following problem in this system: 1) rely on compressor vacuum to inhale high-pressure refrigerant, easy blending low pressure refrigerant, reduces regulating power; 2) auxiliary coil pipe will be enough to hold most of liquid refrigerant, and bracket panel pipe volume is bigger than normal, and cost is higher.
Summary of the invention
The object of the present invention is to provide and a kind ofly adapt to the change component refrigerants heat-pump hot-water unit that warm area is large, rectification effect is good.
The technical solution realizing the object of the invention is: a kind of change component refrigerants heat-pump hot-water unit, comprise for sucking gaseous refrigerant and carrying out compressing the compressor exported, be filled with the rectifier of cold-producing medium, condensing heat exchanger, the fluid reservoir be connected with condensing heat exchanger, first throttle valve, second throttle, first magnetic valve, second magnetic valve, 3rd magnetic valve, 4th magnetic valve, outdoor heat exchanger, the gas-liquid separator be connected with the outlet of outdoor heat exchanger and the coil pipe being arranged on rectifier inside, the outlet of described gas-liquid separator is connected with the entrance of compressor, described coil pipe and the first magnetic valve are arranged in parallel between the outlet and the entrance of condensing heat exchanger of compressor, two branch roads parallel with one another are provided with between described fluid reservoir and outdoor heat exchanger, the entrance of the i.e. outlet of fluid reservoir, the 3rd magnetic valve, first throttle valve, outdoor heat exchanger is connected formation first branch road successively, and the outlet of fluid reservoir, the 4th magnetic valve, second throttle, rectifier, the second magnetic valve and the entrance of outdoor heat exchanger are connected formation second branch road successively.
Compared with prior art, its remarkable advantage is in the present invention: (1) the present invention utilizes the superheated steam of compressor outlet, and temperature is higher, and heating rectifier successful, substantially reduces the time that refrigerant component changes, improve the heating performance of system; (2) the present invention with the addition of a rectifier and several magnetic valve on the basis of conventional heat pump, and system architecture is compact, and cost is lower; (3) the present invention isolates the superior cold-producing medium of heating performance in the winter time, effectively can improve the low-temperature heating ability of heat pump, and the conversion of different component cold-producing medium can be realized according to outdoor environment temperature, to the strong adaptability of environment temperature, particularly applicable in the heat pump applications of environment temperature wide region change.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention becomes component refrigerants heat-pump hot-water unit.
Fig. 2 is the rectifier built-in immersion serpentine coil schematic diagram that the present invention becomes component refrigerants heat-pump hot-water unit.
Fig. 3 is the built-in parallel comb schematic diagram of rectifier that the present invention becomes component refrigerants heat-pump hot-water unit.
Detailed description of the invention
Composition graphs 1, Fig. 2, Fig. 3, a kind of change component refrigerants heat-pump hot-water unit, comprise for sucking gaseous refrigerant and carrying out compressing the compressor 1 exported, be filled with the rectifier 2 of cold-producing medium, condensing heat exchanger 3, the fluid reservoir 4 be connected with condensing heat exchanger 3, first throttle valve 5, second throttle 8, first magnetic valve F1, second magnetic valve F2, 3rd magnetic valve F3, 4th magnetic valve F4, outdoor heat exchanger 6, the gas-liquid separator 7 be connected with the outlet of outdoor heat exchanger 6 and the coil pipe 9 being arranged on rectifier 2 inside, the outlet of described gas-liquid separator 7 is connected with suction port of compressor 1-2, described coil pipe 9 and the first magnetic valve F1 are arranged in parallel between compressor outlet 1-1 and condensing heat exchanger entrance 3-1, two branch roads parallel with one another are provided with between described fluid reservoir 4 and outdoor heat exchanger 6, the entrance of the i.e. outlet of fluid reservoir 4, the 3rd magnetic valve F3, first throttle valve 5, outdoor heat exchanger 6 is connected formation first branch road successively, and the outlet of fluid reservoir 4, the 4th magnetic valve F4, second throttle 8, rectifier 2, second magnetic valve F2 and the entrance of outdoor heat exchanger 6 are connected formation second branch road successively.
Described first throttle valve 5 and second throttle 8 adopt heating power expansion valve, electric expansion valve or capillary.
Described coil pipe 9 is immersion serpentine coil or parallel comb.
Described outdoor heat exchanger 6 is air-cooled heat exchanger or water-cooled heat exchanger.
Described condensing heat exchanger 3 is made up of a water-cooled heat exchanger, or is made up of multiple water-cooled heat exchanger parallel connection.
Below in conjunction with specific embodiment, the present invention will be further described.
Embodiment 1
Composition graphs 1, Fig. 2, a kind of change component refrigerants heat-pump hot-water unit, comprise one for sucking gaseous refrigerant and carrying out compressing the compressor 1 exported, a condensing heat exchanger 3, a fluid reservoir 4 be connected with condensing heat exchanger 3, the gas-liquid separator 7, one that outdoor heat exchanger 6, is connected with the outlet of outdoor heat exchanger 6 is filled with the rectifier 2 of mixed non-azeotropic refrigerant and is arranged on the coil pipe 9 of rectifier 2 inside; The outlet of gas-liquid separator 7 is connected with suction port of compressor 1-2, and coil pipe 9 and the first magnetic valve F1 are arranged in parallel between compressor outlet 1-1 and condensing heat exchanger entrance 3-1; Two branch roads parallel with one another are provided with between fluid reservoir 4 and outdoor heat exchanger 6, the entrance of the outlet of fluid reservoir 4, the 3rd magnetic valve F3, first throttle valve 5, outdoor heat exchanger 6 is connected formation first branch road successively, and the outlet of fluid reservoir 4, the 4th magnetic valve F4, second throttle 8, rectifier 2, second magnetic valve F2 and the entrance of outdoor heat exchanger 6 are connected formation second branch road successively.Being used for the cold-producing medium of supply system circulation in rectifier 2 isolates lower boiling cold-producing medium and the high boiling cold-producing medium of storage after the heating selectively, or provides refrigerant vapour when suction port of compressor negative pressure.
Wherein, first throttle valve 5 and second throttle 8 all adopt heating power expansion valve, and coil pipe 9 is immersion serpentine coil, and outdoor heat exchanger 6 is air-cooled heat exchanger, and condensing heat exchanger 3 is made up of a water-cooled heat exchanger.
Rectifying low boiling point refrigerant can be realized according to the different open and-shut modes of the first magnetic valve F1, the second magnetic valve F2, the 3rd magnetic valve F3 and the 4th magnetic valve F4, refrigerant component recovers and unit normally works three kinds of operational modes.
The operational mode of (a) rectifying low boiling point refrigerant
When outdoor temperature is lower than switching temperature T1, close the first magnetic valve F1 and the 3rd magnetic valve F3, open the second magnetic valve F2 and the 4th magnetic valve F4, compressor outlet 1-1 superheated steam is through coil pipe 9 heat release of rectifier 2 li, then in condensing heat exchanger 3 condensation further, then, after being become low pressure liquid by choke valve 8 throttling, flow in rectifier 2; Meanwhile, rectifier 2 absorbs heat, and the low boiling point refrigerant evaporated is overheated further in outdoor heat exchanger 6, after gas-liquid separator 7, enters suction port of compressor 1-2.Through this process, the low boiling point refrigerant ratio run in system rises, and most of higher boiling cold-producing medium is stored in rectifier simultaneously.
B operational mode that () refrigerant component is recovered
When outdoor temperature is higher than switching temperature T2, close the first magnetic valve F1, the 3rd magnetic valve F3 and the 4th magnetic valve F4, open the second magnetic valve F2, compressor outlet 1-1 superheated steam is through the coil pipe heat release of rectifier 2 li, then condensation in condensing heat exchanger 3; Meanwhile, rectifier 2 absorbs heat, compressor suction 1-2 vacuum, and rectifier 2 li of higher boiling refrigerants vaporize, after outdoor heat exchanger 6 and gas-liquid separator 7, enter suction port of compressor 1-2.Through this process, cold-producing medium mixes in condensing heat exchanger, and low boiling point refrigerant ratio declines, and unnecessary cold-producing medium is stored in inside fluid reservoir.
C operational mode that () unit normally works
After refrigerant component reaches requirement, open the first magnetic valve F1 and the 3rd magnetic valve F3, close the second magnetic valve F2 and the 4th magnetic valve F4, refrigerant vapour becomes the superheated steam of HTHP after compressor 1 compresses, and enters condensing heat exchanger 3 exothermic condensation, is then become the liquid of low-pressure low-temperature by choke valve 5 throttling, enter in outdoor heat exchanger 6 and absorb heat, after gas-liquid separator 7, come back to compressor 1, complete a kind of refrigeration cycle.
Embodiment 2
Composition graphs 1, Fig. 3, a kind of change component refrigerants heat-pump hot-water unit, comprise one for sucking gaseous refrigerant and carrying out compressing the compressor 1 exported, a condensing heat exchanger 3, a fluid reservoir 4 be connected with condensing heat exchanger 3, an outdoor heat exchanger 6, a gas-liquid separator 7 be connected with the outlet of outdoor heat exchanger 6, the outlet of described gas-liquid separator 7 is connected with suction port of compressor 1-2, and described change component refrigerants heat-pump hot-water unit also comprises one and is filled with the rectifier 2 of mixed non-azeotropic refrigerant and is arranged on the coil pipe 9 of rectifier 2 inside; Described coil pipe 9 and the first magnetic valve F1 are arranged in parallel between compressor outlet 1-1 and condensing heat exchanger entrance 3-1; Two branch roads parallel with one another are provided with between described fluid reservoir 4 and outdoor heat exchanger 6, the entrance of the outlet of fluid reservoir 4, the 3rd magnetic valve F3, first throttle valve 5, outdoor heat exchanger 6 is connected formation first branch road successively, and the outlet of fluid reservoir 4, the 4th magnetic valve F4, second throttle 8, rectifier 2, second magnetic valve F2 and the entrance of outdoor heat exchanger 6 are connected formation second branch road successively.Being used for the cold-producing medium of supply system circulation in rectifier 2 isolates lower boiling cold-producing medium and the high boiling cold-producing medium of storage after the heating selectively, or provides refrigerant vapour when suction port of compressor negative pressure.
Wherein, first throttle valve 5 and second throttle 8 all adopt electric expansion valve, and coil pipe 9 adopts parallel comb, and outdoor heat exchanger 6 is water-cooled heat exchanger, and condensing heat exchanger 3 is made up of multiple water-cooled heat exchanger parallel connection.
Rectifying low boiling point refrigerant can be realized according to the different open and-shut modes of the first magnetic valve F1, the second magnetic valve F2, the 3rd magnetic valve F3 and the 4th magnetic valve F4, refrigerant component recovers and unit normally works three kinds of operational modes.
The operational mode of (a) rectifying low boiling point refrigerant
When outdoor temperature is lower than switching temperature T1, close the first magnetic valve F1 and the 3rd magnetic valve F3, open the second magnetic valve F2 and the 4th magnetic valve F4, compressor outlet 1-1 superheated steam is through coil pipe 9 heat release of rectifier 2 li, then in condensing heat exchanger 3 condensation further, then, after being become low pressure liquid by choke valve 8 throttling, flow in rectifier 2; Meanwhile, rectifier 2 absorbs heat, and the low boiling point refrigerant evaporated is overheated further in outdoor heat exchanger 6, after gas-liquid separator 7, enters suction port of compressor 1-2.Through this process, the low boiling point refrigerant ratio run in system rises, and most of higher boiling cold-producing medium is stored in rectifier simultaneously.
B operational mode that () refrigerant component is recovered
When outdoor temperature is higher than switching temperature T2, closes the first magnetic valve F1, the 3rd magnetic valve F3 and the 4th magnetic valve F4, open the second magnetic valve F2, compressor outlet 1-1 superheated steam through coil pipe 9 heat release of rectifier 2 li, then condensation in condensing heat exchanger 3; Meanwhile, rectifier 2 absorbs heat, suction port of compressor 1-2 vacuum, and rectifier 2 li of higher boiling refrigerants vaporize, after outdoor heat exchanger 6 and gas-liquid separator 7, enter suction port of compressor 1-2.Through this process, cold-producing medium mixes in condensing heat exchanger 3, and low boiling point refrigerant ratio declines, and unnecessary cold-producing medium is stored in inside fluid reservoir 4.
C operational mode that () unit normally works
After refrigerant component reaches requirement, open the first magnetic valve F1 and the 3rd magnetic valve F3, close the second magnetic valve F2 and the 4th magnetic valve F4, refrigerant vapour becomes the superheated steam of HTHP after compressor 1 compresses, and enters condensing heat exchanger 3 exothermic condensation, is then become the liquid of low-pressure low-temperature by choke valve 5 throttling, enter in outdoor heat exchanger 6 and absorb heat, after gas-liquid separator 7, come back to compressor 1, complete a kind of refrigeration cycle.
The present invention has set up rectifier and magnetic valve, can realize the conversion of different component cold-producing medium, to the strong adaptability of environment temperature according to outdoor environment temperature; Under expansion heat-pump hot-water unit adapts to the prerequisite of warm area, greatly rectification effect must be improve.
Claims (5)
1. one kind becomes component refrigerants heat-pump hot-water unit, it is characterized in that, comprise for sucking gaseous refrigerant and carrying out compressing the compressor [1] exported, be filled with the rectifier [2] of cold-producing medium, condensing heat exchanger [3], the fluid reservoir [4] be connected with condensing heat exchanger [3], first throttle valve [5], second throttle [8], first magnetic valve [F1], second magnetic valve [F2], 3rd magnetic valve [F3], 4th magnetic valve [F4], outdoor heat exchanger [6], the gas-liquid separator [7] be connected with the outlet of outdoor heat exchanger [6] and be arranged on the inner coil pipe [9] of rectifier [2], the outlet of described gas-liquid separator [7] is connected with suction port of compressor [1-2], described coil pipe [9] and the first magnetic valve [F1] are arranged in parallel between compressor outlet [1-1] and condensing heat exchanger entrance [3-1], two branch roads parallel with one another are provided with between described fluid reservoir [4] and outdoor heat exchanger [6], the entrance of the i.e. outlet of fluid reservoir [4], the 3rd magnetic valve [F3], first throttle valve [5], outdoor heat exchanger [6] is connected formation first branch road successively, and the outlet of fluid reservoir [4], the 4th magnetic valve [F4], second throttle [8], rectifier [2], the second magnetic valve [F2] and the entrance of outdoor heat exchanger [6] are connected formation second branch road successively.
2. change component refrigerants heat-pump hot-water unit according to claim 1, is characterized in that, described first throttle valve [5] and second throttle [8] adopt heating power expansion valve, electric expansion valve or capillary.
3. change component refrigerants heat-pump hot-water unit according to claim 1, is characterized in that, described coil pipe [9] is immersion serpentine coil or parallel comb.
4. change component refrigerants heat-pump hot-water unit according to claim 1, is characterized in that, described outdoor heat exchanger [6] is air-cooled heat exchanger or water-cooled heat exchanger.
5. change component refrigerants heat-pump hot-water unit according to claim 1, it is characterized in that, described condensing heat exchanger [3] is made up of a water-cooled heat exchanger, or is made up of multiple water-cooled heat exchanger parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329417.2A CN105276864B (en) | 2014-07-10 | 2014-07-10 | One kind becomes component refrigerants heat-pump hot-water unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329417.2A CN105276864B (en) | 2014-07-10 | 2014-07-10 | One kind becomes component refrigerants heat-pump hot-water unit |
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| Publication Number | Publication Date |
|---|---|
| CN105276864A true CN105276864A (en) | 2016-01-27 |
| CN105276864B CN105276864B (en) | 2018-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410329417.2A Expired - Fee Related CN105276864B (en) | 2014-07-10 | 2014-07-10 | One kind becomes component refrigerants heat-pump hot-water unit |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1118058A (en) * | 1994-08-30 | 1996-03-06 | 株式会社东芝 | Refrigerating apparatus |
| JP2001133059A (en) * | 1999-11-10 | 2001-05-18 | Matsushita Refrig Co Ltd | Heat pump system |
| CN1514193A (en) * | 2003-07-08 | 2004-07-21 | 浙江大学 | Low temperature heat source heat pump system and its capacity regulating method |
| CN2725773Y (en) * | 2004-09-13 | 2005-09-14 | 上海理工大学 | Ternary non-azeotropic mixed working medium variable composition volume control air conditioner |
| CN1776325A (en) * | 2005-11-25 | 2006-05-24 | 西安交通大学 | High-low temperature changeable graded evaporation air-conditioner heat pump water heater |
-
2014
- 2014-07-10 CN CN201410329417.2A patent/CN105276864B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1118058A (en) * | 1994-08-30 | 1996-03-06 | 株式会社东芝 | Refrigerating apparatus |
| JP2001133059A (en) * | 1999-11-10 | 2001-05-18 | Matsushita Refrig Co Ltd | Heat pump system |
| CN1514193A (en) * | 2003-07-08 | 2004-07-21 | 浙江大学 | Low temperature heat source heat pump system and its capacity regulating method |
| CN2725773Y (en) * | 2004-09-13 | 2005-09-14 | 上海理工大学 | Ternary non-azeotropic mixed working medium variable composition volume control air conditioner |
| CN1776325A (en) * | 2005-11-25 | 2006-05-24 | 西安交通大学 | High-low temperature changeable graded evaporation air-conditioner heat pump water heater |
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| CN105276864B (en) | 2018-01-05 |
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Granted publication date: 20180105 Termination date: 20200710 |