CN217303238U - Low-temperature air source heat pump - Google Patents
Low-temperature air source heat pump Download PDFInfo
- Publication number
- CN217303238U CN217303238U CN202220974429.0U CN202220974429U CN217303238U CN 217303238 U CN217303238 U CN 217303238U CN 202220974429 U CN202220974429 U CN 202220974429U CN 217303238 U CN217303238 U CN 217303238U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- gas
- evaporator
- outlet end
- compressor
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model relates to a heat pump equipment technical field especially relates to a low temperature air source heat pump. The system comprises a compressor, a four-way valve, a condenser, an evaporator and a refrigerant pipeline; the method is characterized in that: the evaporator is characterized by further comprising an injection device and a gas-liquid separator, the injection device is communicated with the outlet end of the condenser and the outlet end of the evaporator, and the gas-liquid separator is communicated with the outlet end of the injection device. In the scheme, liquid refrigerant from the condenser and gas refrigerant from the evaporator enter the ejector together, the mixed refrigerant enters a gas-liquid separator after being subjected to pressure expansion (the pressure is higher than that of the mixed refrigerant from the evaporator), gas is separated and enters the compressor, and liquid is separated and enters the evaporator through the throttle valve. Because one part of the mixed refrigerant is high-temperature high-pressure liquid and the other part is high-pressure gas, the pressure of the mixed refrigerant is greatly improved, so that the pressure of an air suction port of the compressor can be improved, the energy efficiency of a unit is improved, and the exhaust temperature of the compressor is reduced.
Description
Technical Field
The utility model relates to a heat pump equipment technical field especially relates to a low temperature air source heat pump.
Background
At present, the air source heat pump is widely applied to household and commercial heating, and is also popularized in cold regions, however, the operation bottleneck of the air source heat pump is generated at low ambient temperature, the lower the ambient temperature is, the higher the required water temperature is, the high-pressure ratio operation of a unit is caused, the throttling loss is increased, the operation energy efficiency is reduced, and the current low-temperature heat pump only adopts liquid spraying for cooling without considering the throttling loss.
Disclosure of Invention
In order to solve the above problem, an object of the utility model is to provide a low temperature air source heat pump has hydrojet device and injection apparatus simultaneously, and wherein, the hydrojet device solves the too high problem of compressor exhaust temperature under the low temperature, and injection apparatus reduces the throttling loss among the heat pump system.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the system comprises a compressor, a four-way valve, a condenser, an evaporator and a refrigerant pipeline; the method is characterized in that: the system also comprises an injection device and a gas-liquid separator, wherein the injection device is communicated with the outlet end of the condenser and the outlet end of the evaporator, and the gas-liquid separator is communicated with the outlet end of the injection device;
the refrigerant pipelines comprise a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a sixth pipeline, a seventh pipeline and an eighth pipeline; the four-way valve comprises a control valve port C, a control valve port D, a control valve port E and a control valve port S; wherein the content of the first and second substances,
the control valve port C is communicated with the inlet end of the condenser through a first pipeline,
the second pipeline is connected and arranged between the outlet end of the condenser and the first inlet end of the injection device;
the third pipeline is arranged between the outlet end of the injection device and the inlet end of the gas-liquid separator;
the fourth pipeline is arranged between the second outlet end of the gas-liquid separator and the inlet end of the evaporator;
the control valve port E is communicated with the first outlet end of the gas-liquid separator through a fifth pipeline;
the control valve port S is communicated with an air suction port of the compressor through a sixth pipeline;
the control valve port D is communicated with an exhaust port of the compressor through a seventh pipeline;
the eighth pipeline is arranged between the outlet end of the evaporator and the second inlet end of the injection device.
Preferably, the refrigerant pipeline further comprises a first branch, one end of the first branch is connected to the second pipeline, the other end of the first branch is connected to a third port of the compressor, and the first branch is provided with a liquid spraying valve.
Preferably, a throttle valve is arranged on the fourth pipeline.
Preferably, the first outlet end of the gas-liquid separator is an air port.
Preferably, the second outlet end of the gas-liquid separator is a liquid port.
The above technical scheme is adopted in the utility model, a low temperature air source heat pump has hydrojet device hydrojet valve and injection apparatus, and the hydrojet device solves the too high problem of compressor exhaust temperature under the low temperature, and injection apparatus reduces throttling loss.
In the scheme, liquid refrigerant from the condenser and gas refrigerant from the evaporator enter the ejector device together, the mixed refrigerant enters a gas-liquid separator after being subjected to pressure expansion (the pressure is higher than that of the refrigerant from the evaporator), gas is separated and enters a compressor, and liquid is separated and enters the evaporator through a throttle valve. Because the mixed refrigerant is high-temperature high-pressure liquid and high-pressure gas, the pressure of the mixed refrigerant is greatly improved, and the pressure of the gas refrigerant separated by the gas-liquid separator is relatively normally high, the pressure of a gas suction port of the compressor can be improved, the energy efficiency of a unit is improved, and the exhaust temperature of the compressor is reduced. And if the exhaust temperature of the compressor is too high, the liquid spraying valve is opened, and the sprayed liquid is cooled.
According to the scheme, two functions of liquid spraying and injection are combined, low-temperature reliable and stable operation is achieved, simultaneously, the dryness of the inlet of the evaporator is reduced, the inlet pressure of the compressor is improved, the problem that the energy efficiency of the existing low-temperature air source heat pump is lost at low temperature is solved, and the energy efficiency and the operation range of the unit are improved through injection.
Drawings
Fig. 1 is a system schematic diagram of a low-temperature air source heat pump.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1, the low-temperature air source heat pump includes a compressor 1, a four-way valve 2, a condenser 3, an evaporator 4 and a refrigerant pipeline; the method is characterized in that: the system also comprises an injection device 5 and a gas-liquid separator 6, wherein the injection device 5 is communicated with an outlet end 7 of the condenser and an outlet end 8 of the evaporator, and the gas-liquid separator 6 is communicated with an outlet end 9 of the injection device;
the refrigerant pipelines comprise a first pipeline 101, a second pipeline 102, a third pipeline 103, a fourth pipeline 104, a fifth pipeline 105, a sixth pipeline 106, a seventh pipeline 107 and an eighth pipeline 108; the four-way valve 2 comprises a control valve port C, a control valve port D, a control valve port E and a control valve port S; wherein the content of the first and second substances,
the control valve port C communicates with the inlet port 10 of the condenser through a first conduit 101,
the second pipeline 102 is connected between the outlet end 7 of the condenser and the first inlet end 11 of the injection device;
the third pipeline 103 is arranged between the outlet end 9 of the injection device and the inlet end 12 of the gas-liquid separator;
a fourth conduit 104 is arranged between the second outlet end 13 of the gas-liquid separator and the inlet end 14 of the evaporator;
the control valve port E is communicated with the first outlet end 15 of the gas-liquid separator through a fifth pipeline 105;
the control valve port S is communicated with the suction port 16 of the compressor through a sixth pipe 106;
the control valve port D is communicated with an exhaust port 17 of the compressor through a seventh pipeline 107;
the eighth conduit 108 is arranged between the outlet end 8 of the evaporator and the second inlet end 18 of the ejector.
Further, the refrigerant pipeline further includes a first branch 200, one end of the first branch 200 is connected to the second pipeline 102, and the other end of the first branch is connected to a third port 19 of the compressor, and the first branch 200 is provided with a liquid injection valve 20.
Further, a throttle valve 21 is provided on the fourth pipe 104.
Further, the first outlet end 15 of the gas-liquid separator is an air port.
Further, the second outlet end 13 of the gas-liquid separator is a liquid port.
In the embodiment, a low-temperature air source heat pump is adopted, an ejector 5 is arranged in a system of the heat pump, liquid refrigerant from a condenser 3 and gas refrigerant from an evaporator 4 enter the ejector 5 together, the mixed refrigerant is subjected to pressure expansion (the pressure is higher than that of the evaporator 4) and then enters a gas-liquid separator 6, gas is separated and enters a compressor 1, and liquid is separated and enters the evaporator 4 through a throttle valve 21. Because the mixed refrigerant is high-temperature high-pressure liquid and high-pressure gas, the pressure of the mixed refrigerant is greatly improved, and the pressure of the gas refrigerant separated by the gas-liquid separator 6 is relatively ordinarily high, so that the pressure of a gas suction port of the compressor can be improved, the energy efficiency of a unit is improved, and the exhaust temperature of the compressor is reduced. Further, if the compressor discharge temperature is too high, the liquid discharge valve 20 is opened to lower the temperature of the discharged liquid.
According to the scheme, two functions of liquid spraying and injection are combined, low-temperature reliable and stable operation is achieved, meanwhile, the inlet dryness of the evaporator 4 is reduced, the inlet pressure of the compressor 1 is improved, the problem that the energy efficiency of the existing low-temperature air source heat pump is lost at low temperature is solved, and the energy efficiency and the operation range of a unit are improved through injection.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.
Claims (5)
1. A low-temperature air source heat pump comprises a compressor (1), a four-way valve (2), a condenser (3), an evaporator (4) and a refrigerant pipeline; the method is characterized in that: the condenser is characterized by further comprising an injection device (5) and a gas-liquid separator (6), wherein the injection device (5) is communicated with an outlet end (7) of the condenser and an outlet end (8) of the evaporator, and the gas-liquid separator (6) is communicated with an outlet end (9) of the injection device;
the refrigerant pipelines comprise a first pipeline (101), a second pipeline (102), a third pipeline (103), a fourth pipeline (104), a fifth pipeline (105), a sixth pipeline (106), a seventh pipeline (107) and an eighth pipeline (108); the four-way valve (2) comprises a control valve port C, a control valve port D, a control valve port E and a control valve port S; wherein the content of the first and second substances,
the control valve port C is communicated with the inlet end (10) of the condenser through a first pipeline (101),
the second pipeline (102) is connected and arranged between the outlet end (7) of the condenser and the first inlet end (11) of the injection device;
the third pipeline (103) is arranged between the outlet end (9) of the injection device and the inlet end (12) of the gas-liquid separator;
the fourth pipeline (104) is arranged between the second outlet end (13) of the gas-liquid separator and the inlet end (14) of the evaporator;
the control valve port E is communicated with a first outlet end (15) of the gas-liquid separator through a fifth pipeline (105);
the control valve port S is communicated with a suction port (16) of the compressor through a sixth pipeline (106);
the control valve port D is communicated with an exhaust port (17) of the compressor through a seventh pipeline (107);
the eighth conduit (108) is arranged between the outlet end (8) of the evaporator and the second inlet end (18) of the ejector.
2. A cryogenic air source heat pump according to claim 1, wherein: the refrigerant pipeline further comprises a first branch (200), one end of the first branch (200) is connected to the second pipeline (102), the other end of the first branch is connected with a third port (19) of the compressor, and a liquid spraying valve (20) is arranged on the first branch (200).
3. A cryogenic air source heat pump according to claim 1, wherein: and a throttle valve (21) is arranged on the fourth pipeline (104).
4. A cryogenic air source heat pump according to claim 1, wherein: the first outlet end (15) of the gas-liquid separator is an air port.
5. A cryogenic air source heat pump according to claim 1 or 4, wherein: and a second outlet end (13) of the gas-liquid separator is a liquid port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220974429.0U CN217303238U (en) | 2022-04-22 | 2022-04-22 | Low-temperature air source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220974429.0U CN217303238U (en) | 2022-04-22 | 2022-04-22 | Low-temperature air source heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217303238U true CN217303238U (en) | 2022-08-26 |
Family
ID=82914554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220974429.0U Active CN217303238U (en) | 2022-04-22 | 2022-04-22 | Low-temperature air source heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217303238U (en) |
-
2022
- 2022-04-22 CN CN202220974429.0U patent/CN217303238U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2814269Y (en) | Refrigerating system capable of ejecting scavenge return | |
| CN1719157A (en) | Compression/injection mixed circulation refrigerating machine set | |
| CN104359246A (en) | CO2 two-temperature refrigerating system adopting vortex liquid separation and ejector injection | |
| CN2522805Y (en) | Gas-liquid separator used in heat-pump system | |
| CN113405303B (en) | Refrigerator refrigerating system and refrigerator comprising same | |
| CN109297210A (en) | A kind of air-conditioning system and control method with injector | |
| CN217303238U (en) | Low-temperature air source heat pump | |
| CN203432136U (en) | Jet enthalpy increasing air conditioning system | |
| CN201265919Y (en) | Air Conditioning system | |
| CN218599870U (en) | Air conditioning unit | |
| CN204254927U (en) | The CO of eddy current separating liquid and injector injection 2two temp, refrigerating system | |
| CN202303718U (en) | Ice storage system of ice storage multi-connected air-conditioning unit | |
| CN203375771U (en) | Refrigerating system and air conditioner with same | |
| CN104896808A (en) | Multiple-online system | |
| CN210345946U (en) | Carbon dioxide heat pump device capable of realizing cyclic heating | |
| CN201129799Y (en) | Low temperature high-efficiency heat-production air conditioner | |
| CN216048459U (en) | Low-temperature refrigerating system | |
| CN217357043U (en) | Hot-blast frosting prevention and hot-blast defrosting heating air source heat pump | |
| CN217504034U (en) | Two-stage EVI low-temperature heat pump | |
| CN218001864U (en) | Refrigerating system | |
| CN215446977U (en) | Low-temperature refrigerating system | |
| CN217520091U (en) | Self-overlapping low-temperature heat pump with liquid spraying function | |
| CN220648484U (en) | Effectual air conditioner of cooling | |
| CN113091355B (en) | Heat pipe and vapor compression composite air conditioning system and method with uniform liquid distribution | |
| CN217504049U (en) | Refrigerating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |