CN217785518U - Air source heat pump unit - Google Patents
Air source heat pump unit Download PDFInfo
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- CN217785518U CN217785518U CN202122339245.5U CN202122339245U CN217785518U CN 217785518 U CN217785518 U CN 217785518U CN 202122339245 U CN202122339245 U CN 202122339245U CN 217785518 U CN217785518 U CN 217785518U
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Abstract
The utility model provides an air source heat pump unit belongs to refrigeration (heat) technical field. The low-temperature gas pipeline and the high-temperature liquid pipeline exchange heat through the first heat exchanger, so that the temperature of refrigerant steam in the low-temperature gas pipeline is increased, the temperature of refrigerant liquid in the high-temperature liquid pipeline is reduced, the supercooling degree of refrigeration in summer and the suction superheat degree of a heating compressor in winter are increased, and the refrigerating capacity in summer is increased and the safe operation of the compressor is ensured during heating in winter.
Description
Technical Field
The utility model relates to a refrigeration (heat) technical field, concretely relates to air source heat pump set.
Background
The air source heat pump unit is generally used for cooling in summer or heating in winter, and the working principle of the air source heat pump unit is based on compression type cooling circulation, a refrigerant is used as a circulation medium, and heat is absorbed or discharged from air through forced heat exchange of a fan so as to meet the requirements of cooling or heating. In the circulation process of the refrigerant, the compressor sucks low-temperature and low-pressure refrigerant steam, the low-temperature and low-pressure refrigerant steam is compressed into high-temperature and high-pressure refrigerant steam, then the high-temperature and high-pressure refrigerant steam is condensed to become high-temperature and high-pressure refrigerant liquid, and the high-temperature and high-pressure refrigerant liquid is evaporated to become low-temperature and low-pressure refrigerant steam, so that the refrigeration or heating of the unit is realized.
The existing air source heat pump unit has the defects that the supercooling degree is difficult to control or insufficient in summer refrigeration, and the compressor cannot safely and efficiently operate due to the fact that the compressor cannot absorb enough superheat degree easily in winter heating.
SUMMERY OF THE UTILITY MODEL
To the problem pointed out in the background art, the utility model provides an air source heat pump unit.
The technical scheme of the utility model is realized like this:
the utility model provides an air source heat pump unit, includes vapour and liquid separator, compressor, high-pressure liquid storage pot and drier-filter, vapour and liquid separator with pipe connection between the two of compressor and pipeline between the two set up to low temperature gas pipeline, high-pressure liquid storage pot with pipe connection between the two of drier-filter and pipeline between the two sets up to high temperature liquid pipeline, low temperature gas pipeline with high temperature liquid pipeline carries out the heat transfer through first heat exchanger.
According to the utility model discloses an embodiment, compressor tube coupling cross valve, cross valve tube coupling wind side heat exchanger and second heat exchanger, the cross valve with vapour and liquid separator tube coupling.
According to the utility model discloses an embodiment, the drier-filter tube coupling choke part, choke part tube coupling check valve group, check valve group with high-pressure liquid storage pot wind side heat exchanger reaches second heat exchanger tube coupling.
According to an embodiment of the present invention, the first heat exchanger is configured as a fluorine-fluorine heat exchanger.
According to an embodiment of the invention, the second heat exchanger is arranged as a fluorine-water heat exchanger or a fluorine-air heat exchanger.
According to the utility model discloses an embodiment, the check valve group includes first check valve, second check valve, third check valve and fourth check valve, the import of first check valve with the import tube coupling of fourth check valve, the export of first check valve with the import tube coupling of second check valve, the export of second check valve with the export tube coupling of third check valve, the import of third check valve with the export tube coupling of fourth check valve, high-pressure liquid storage pot tube coupling is in the second check valve with between the third check valve, wind side heat exchanger tube coupling be in first check valve with between the second check valve, throttle part tube coupling be in first check valve with between the fourth check valve, second heat exchanger tube coupling be in the third check valve with between the fourth check valve.
To sum up, the beneficial effects of the utility model are that:
1. the low-temperature gas pipeline between the gas-liquid separator and the air suction port of the compressor and the high-temperature liquid pipeline between the high-pressure liquid storage tank and the drying filter exchange heat of the refrigerant through the first heat exchanger, so that the temperature of refrigerant steam in the low-temperature gas pipeline is increased, the temperature of refrigerant liquid in the high-temperature liquid pipeline is reduced, the supercooling degree of refrigeration in summer and the suction superheat degree of a heating compressor in winter are increased, the refrigerating capacity in summer is increased, and the safe operation of the compressor during heating in winter is ensured;
2. through the integral pipeline connection design of the unit, the unit can realize high-efficiency refrigeration or high-efficiency heating.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a working schematic diagram of the embodiment of the present invention in which the refrigerant flows through the wind-side heat exchanger to absorb heat;
fig. 2 is the working principle diagram of the embodiment of the present invention in which the refrigerant flows through the wind-side heat exchanger to release heat.
Reference numerals are as follows: 1. a gas-liquid separator; 2. a compressor; 3. a high-pressure liquid storage tank; 4. drying the filter; 5. a cryogenic gas line; 6. a high temperature liquid line; 7. a first heat exchanger; 8. a four-way valve; 9. a wind side heat exchanger; 10. a second heat exchanger; 11. a throttling member; 12. a first check valve; 13. a second one-way valve; 14. a third check valve; 15. and a fourth check valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
The present invention is explained below with reference to fig. 1 and 2:
an air source heat pump unit comprises a gas-liquid separator 1, a compressor 2, a high-pressure liquid storage tank 3, a drying filter 4, a second heat exchanger 10 and an air side heat exchanger 9. Through reasonable work of each mechanism, the air source heat pump unit takes a refrigerant as a circulating medium, and heat is absorbed or discharged from the atmosphere through forced heat exchange of the air side heat exchanger 9, so that the requirements of refrigeration or heating are met.
The gas-liquid separator 1 is connected with the air suction port of the compressor 2 through a pipeline, and the pipeline between the gas-liquid separator and the air suction port of the compressor is set as a low-temperature gas pipeline 5; the high-pressure liquid storage tank 3 and the drying filter 4 are connected through a pipeline, and a high-temperature liquid pipeline 6 is arranged between the high-pressure liquid storage tank and the drying filter.
Low-temperature and low-pressure gas flows through the low-temperature gas pipeline 5; a relatively high-temperature, high-pressure liquid flows through the high-temperature liquid line 6. Therefore, the low-temperature gas pipeline 5 and the high-temperature liquid pipeline 6 exchange heat through the first heat exchanger 7, and the first heat exchanger 7 is set as a fluorine-fluorine heat exchanger, so that the temperature of refrigerant vapor in the low-temperature gas pipeline 5 is increased, the temperature of refrigerant liquid in the high-temperature liquid pipeline 6 is reduced, the supercooling degree of refrigeration in summer and the suction superheat degree of the heating compressor 2 in winter are increased, the refrigeration capacity in summer is increased, and the safe operation of the compressor 2 during heating in winter is ensured.
In order to realize the integral working operation of the unit, a pipeline of the compressor 2 is connected with a four-way valve 8, the pipeline of the four-way valve 8 is connected with a wind side heat exchanger 9, a second heat exchanger 10 and a gas-liquid separator 1, wherein the second heat exchanger 10 is set as a fluorine-water heat exchanger or a fluorine-air heat exchanger. The pipeline of the drying filter 4 is connected with a throttling part 11, the pipeline of the throttling part 11 is connected with a check valve group, and the check valve group is connected with the high-pressure liquid storage tank 3, the wind side heat exchanger 9 and the second heat exchanger 10 through pipelines.
When the unit is switched between cooling operation and heating operation, the flow direction of the refrigerant needs to be changed through the four-way valve 8 and the check valve set. Specifically, the check valve group comprises a first check valve 12, a second check valve 13, a third check valve 14 and a fourth check valve 15, wherein an inlet of the first check valve 12 is connected with an inlet pipeline of the fourth check valve 15, an outlet of the first check valve 12 is connected with an inlet pipeline of the second check valve 13, an outlet of the second check valve 13 is connected with an outlet pipeline of the third check valve 14, and an inlet of the third check valve 14 is connected with an outlet pipeline of the fourth check valve 15; the high-pressure liquid storage tank 3 is connected between the second one-way valve 13 and the third one-way valve 14 through a pipeline; the wind side heat exchanger 9 is connected between the first check valve 12 and the second check valve 13 through a pipeline; the throttling part 11 is connected between the first check valve 12 and the fourth check valve 15 through a pipeline; the second heat exchanger 10 is piped between a third non return valve 14 and a fourth non return valve 15.
The working process of the present invention will be further described below:
when the air side heat exchanger 9 in the unit absorbs heat from the atmosphere, namely, the refrigerant flowing through the air side heat exchanger 9 absorbs heat, as shown in fig. 1, low-temperature and low-pressure refrigerant steam is separated out of refrigerating machine oil through the gas-liquid separator 1 and is compressed by the compressor 2 to become high-temperature and high-pressure refrigerant steam, the high-temperature and high-pressure refrigerant steam flows through the second heat exchanger 10 under the reversing action of the four-way valve 8, the high-temperature and high-pressure refrigerant steam is condensed by the second heat exchanger 10 to become higher-temperature and high-pressure refrigerant liquid, then the higher-temperature and high-pressure refrigerant liquid flows through the high-pressure liquid storage tank 3 through the one-way valve group and then flows through the first heat exchanger 7, so that the higher-temperature and high-pressure refrigerant liquid exchanges heat with the low-temperature and low-pressure refrigerant steam, and the temperature of the higher-temperature and high-pressure refrigerant liquid after heat exchange is reduced; the high-temperature and high-pressure refrigerant fluid is changed into low-temperature and low-pressure refrigerant fluid under the action of the throttling component 11; then flows through the air side heat exchanger 9 through the check valve group, and a fan in the air side heat exchanger 9 sucks air to the air side heat exchanger 9 for heat exchange to obtain cold air; the low-temperature and low-pressure refrigerant liquid after heat exchange is evaporated into low-temperature and low-pressure refrigerant vapor, and finally is sucked into the compressor 2 again through the four-way valve 8.
When the air side heat exchanger 9 in the unit discharges heat from the atmosphere, that is, the refrigerant flowing through the air side heat exchanger 9 releases heat, as shown in fig. 2, low-temperature and low-pressure refrigerant steam is separated from refrigerator oil by the gas-liquid separator 1, compressed by the compressor 2 and changed into high-temperature and high-pressure refrigerant steam, and flows through the air side heat exchanger 9 under the reversing action of the four-way valve 8, and a fan in the air side heat exchanger 9 sucks air to the air side heat exchanger 9 for heat exchange to obtain hot air; the high-temperature and high-pressure refrigerant steam after heat exchange is condensed into high-temperature and high-pressure refrigerant liquid, then the high-temperature and high-pressure refrigerant liquid flows through the high-pressure liquid storage tank 3 through the check valve group and then passes through the first heat exchanger 7, so that the high-temperature and high-pressure refrigerant liquid exchanges heat with the low-temperature and low-pressure refrigerant steam, the temperature of the high-temperature and high-pressure refrigerant liquid after heat exchange is reduced, and the high-temperature and high-pressure refrigerant liquid is changed into low-temperature and low-pressure refrigerant liquid under the action of the throttling component 11; then flows through the second heat exchanger 10 through the check valve set, the second heat exchanger 10 evaporates the low-temperature and low-pressure refrigerant liquid into low-temperature and low-pressure refrigerant steam, and finally is sucked into the compressor 2 again through the four-way valve 8.
The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An air source heat pump unit comprises a gas-liquid separator (1), a compressor (2), a high-pressure liquid storage tank (3) and a drying filter (4), and is characterized in that,
the gas-liquid separator (1) is connected with the compressor (2) through a pipeline, and the pipeline between the gas-liquid separator and the compressor is set as a low-temperature gas pipeline (5);
the high-pressure liquid storage tank (3) and the drying filter (4) are connected through a pipeline, and the pipeline between the high-pressure liquid storage tank and the drying filter is a high-temperature liquid pipeline (6);
the low-temperature gas pipeline (5) and the high-temperature liquid pipeline (6) exchange heat through a first heat exchanger (7).
2. The air source heat pump unit according to claim 1, wherein the compressor (2) is connected with a four-way valve (8) through a pipeline, the four-way valve (8) is connected with a wind side heat exchanger (9) and a second heat exchanger (10) through a pipeline, and the four-way valve (8) is connected with the gas-liquid separator (1) through a pipeline.
3. The air source heat pump unit according to claim 2, wherein the drying filter (4) is connected with a throttling component (11) through a pipeline, the throttling component (11) is connected with a one-way valve group through a pipeline, and the one-way valve group is connected with the high-pressure liquid storage tank (3), the wind side heat exchanger (9) and the second heat exchanger (10) through pipelines.
4. An air source heat pump unit according to any of claims 1-3, characterised in that the first heat exchanger (7) is arranged as a fluorine-fluorine heat exchanger.
5. An air source heat pump unit according to claim 2 or 3, characterized in that the second heat exchanger (10) is configured as a fluorine-water heat exchanger or a fluorine-air heat exchanger.
6. An air source heat pump unit according to claim 3, characterized in that the check valve group comprises a first check valve (12), a second check valve (13), a third check valve (14) and a fourth check valve (15), wherein the inlet of the first check valve (12) is connected with the inlet pipeline of the fourth check valve (15), the outlet of the first check valve (12) is connected with the inlet pipeline of the second check valve (13), the outlet of the second check valve (13) is connected with the outlet pipeline of the third check valve (14), and the inlet of the third check valve (14) is connected with the outlet pipeline of the fourth check valve (15);
the pipeline of the high-pressure liquid storage tank (3) is connected between the second one-way valve (13) and the third one-way valve (14);
the wind side heat exchanger (9) is connected between the first check valve (12) and the second check valve (13) through a pipeline;
the throttling component (11) is connected between the first one-way valve (12) and the fourth one-way valve (15) through a pipeline;
the second heat exchanger (10) is connected between the third check valve (14) and the fourth check valve (15) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122339245.5U CN217785518U (en) | 2021-09-26 | 2021-09-26 | Air source heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122339245.5U CN217785518U (en) | 2021-09-26 | 2021-09-26 | Air source heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217785518U true CN217785518U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122339245.5U Active CN217785518U (en) | 2021-09-26 | 2021-09-26 | Air source heat pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217785518U (en) |
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2021
- 2021-09-26 CN CN202122339245.5U patent/CN217785518U/en active Active
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