CN219868601U - Structure for adjusting oil supply quantity of air source heat pump system and heat pump system thereof - Google Patents
Structure for adjusting oil supply quantity of air source heat pump system and heat pump system thereof Download PDFInfo
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- CN219868601U CN219868601U CN202321196782.1U CN202321196782U CN219868601U CN 219868601 U CN219868601 U CN 219868601U CN 202321196782 U CN202321196782 U CN 202321196782U CN 219868601 U CN219868601 U CN 219868601U
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- heat pump
- pump system
- oil
- air source
- valve
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- 239000003921 oil Substances 0.000 claims description 107
- 239000007788 liquid Substances 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 5
- 239000010729 system oil Substances 0.000 claims description 2
- 238000011161 development Methods 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 description 11
- 239000003507 refrigerant Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model relates to the technical field of air conditioners, in particular to a structure for adjusting oil supply quantity of an air source heat pump system and the heat pump system thereof. The system has the advantages that the system circulation refrigerating oil quantity is adjusted without stopping, meanwhile, the shielding oil supply quantity adjusting loop is realized through the matching of the electromagnetic valve, the expansion valve and the one-way valve, the original system scheme is simulated, the system debugging parameters are replaced flatly, developers are assisted in improving the development and debugging efficiency of the heat pump system, the workload is reduced, and the debugging resources and the cost are saved.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to a structure for adjusting oil supply quantity of an air source heat pump system and the heat pump system thereof.
Background
At present, in the process of development and debugging of a heat pump system, developers often only pay attention to the adjustment of the refrigerant quantity of the heat pump system so as to obtain higher capacity and energy efficiency, but neglect the influence of the content of the refrigerating oil on the performance and reliability of the heat pump system. Research shows that when the circulation quantity of the lubricating oil is 3% and 5%, the heat exchange quantity of the evaporator is attenuated by about 5% and 10% respectively; the heating energy efficiency ratio (COP) decay is about 2.5% for every 1% increase in oil content in the system. Because the refrigerating fluid is not conveniently regulated in a weighing and adding and subtracting mode like a refrigerant, disassembly and cleaning of the refrigerating fluid in the heat pump system and then quantitative refrigerating fluid adding into the heat pump system are required for the regulation of the refrigerating fluid quantity of the heat pump system, and finally the machine is reloaded for testing. The debugging process of the system is often carried out for a plurality of times, namely the process is carried out for a plurality of times, the heat pump system is required to be disassembled for each time of adjustment, the adjusting difficulty is high, the process is tedious and repeated, continuous trial is required, the development period is long, the workload is high, the efficiency is low, the project development progress is delayed, and a large amount of precious laboratory resources are wasted. Therefore, in the process of developing the heat pump system, a developer only adopts the refrigerating oil quantity contained in the compressor body, and the refrigerating oil quantity cannot be intentionally adjusted as long as the reliability requirement can be met. However, the circulation rate of the refrigerating oil of the compressor has influence on the refrigerating capacity, power, COP and exhaust temperature of the heat pump system, and the refrigerating oil quantity matched with the heat pump system can ensure the normal operation of the compressor and ensure that the compressor obtains the optimal performance index.
Most of the prior devices for analyzing the content of the frozen oil of the heat pump system only carry out academic analysis, and a series of complex equipment such as an oil injection tank, an oil sampling device, a refrigerant sampling device, a vacuum pump and the like are needed, so that the equipment investment is large, the installation is inconvenient, the requirements of simple, convenient, fast and accurate project development are not met, and the device is not suitable for on-site development and adjustment in a laboratory.
Disclosure of Invention
The utility model aims to provide a structure for adjusting oil supply quantity of an air source heat pump system and a heat pump system thereof, so as to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a structure of regulation air source heat pump system oil feed volume, includes oil separator, first solenoid valve, second solenoid valve, check valve, electronic expansion valve, oil separator's interface 1 passes through the pipe connection check valve, oil separator's interface 2 passes through the first solenoid valve of pipe connection, oil separator's interface 3 passes through the pipe connection electronic expansion valve, the pipeline of connecting the check valve and the pipeline of connecting the first solenoid valve are parallelly connected with the pipeline of connecting the second solenoid valve.
Preferably, the oil separator comprises an outer cylinder body and an inner cylinder body, wherein the diameter of the inner cylinder body is 1/2 of that of the outer cylinder body, and a filter screen is arranged at the end part of the inner cylinder body.
Preferably, the outer cylinder of the oil separator is provided with a plurality of sight glass.
The utility model also provides a heat pump system adopting the structure for adjusting the oil supply quantity of the air source heat pump system, which is characterized in that: the air source heat pump system comprises a compressor, a gas-liquid separator, a four-way reversing valve, water side heat exchange, a liquid storage tank and air side heat exchange, wherein a pipeline of a structure for adjusting oil supply quantity of the air source heat pump system, which is connected with an electronic expansion valve, is connected to the gas-liquid separator, a pipeline of a structure for adjusting oil supply quantity of the air source heat pump system, which is connected with a first electromagnetic valve, and a pipeline of a structure for adjusting oil supply quantity of the air source heat pump system, which is connected with a one-way valve, are connected with the four-way valve, the four-way valve is also connected with the water side heat exchange, the air side heat exchange and the air-liquid separator, the compressor is also connected with the liquid storage tank through the electronic expansion valve, and the liquid storage tank is connected with the air side heat exchange through the electronic expansion valve.
Compared with the prior art, the utility model has the beneficial effects that:
because the refrigerating oil circulation of the system is rarely regulated by a developer in the process of debugging the heat pump system at present, even if the refrigerating oil circulation is regulated, the heat pump air conditioner is required to be shut down and disassembled in a very complicated and inconvenient regulating mode.
Drawings
FIG. 1 is a schematic diagram of a heat pump system with a configuration for regulating the amount of oil supplied to the air source heat pump system in accordance with the present utility model;
FIG. 2 is a schematic structural view of an oil separator according to the present utility model;
fig. 3 is a perspective view of an oil separator of the present utility model.
In the figure: the oil separator 1, the first electromagnetic valve 2, the second electromagnetic valve 3, the one-way valve 4, the electronic expansion valve 5, the outer cylinder 101, the inner cylinder 102, the filter screen 103, the sight glass 104, the compressor 6, the gas-liquid separator 7, the four-way reversing valve 8, the water side heat exchange 9, the liquid storage tank 10, the wind side heat exchange 11, the first electronic expansion valve 12 and the second electronic expansion valve 13.
Detailed Description
In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.
Referring to fig. 1 to 3, the present embodiment provides a structure for adjusting oil supply amount of an air source heat pump system, which includes an oil separator 1, a first electromagnetic valve 2, a second electromagnetic valve 3, a check valve 4, and an electronic expansion valve 5, wherein an interface 1 of the oil separator 1 is connected with the check valve 4 through a pipeline, an interface 2 of the oil separator 1 is connected with the first electromagnetic valve 2 through a pipeline, an interface 3 of the oil separator 1 is connected with the electronic expansion valve 5 through a pipeline, and a pipeline connected with the check valve 4 and a pipeline connected with the first electromagnetic valve 2 are connected in parallel with a pipeline connected with the second electromagnetic valve 3.
Referring to fig. 2, the oil separator 1 comprises an outer cylinder 101 and an inner cylinder 102, wherein the diameter of the inner cylinder 102 is 1/2 of the diameter of the outer cylinder 101, and a filter screen 103 is arranged at the end part of the inner cylinder 102. The outer diameter of the outer cylinder 101 of this embodiment is 87.6mm, the diameter of the inner cylinder 102 is 1/2 of the diameter of the outer cylinder 101, namely 43.8mm, the length of the outer cylinder 101 is 769.6mm, the length of the inner cylinder 102 is 327.2mm, the oil storage Chi Gaodu is about 289.3mm, a certain amount of frozen oil is pre-stored in the inner cylinder to meet the requirement of system frozen oil adjustment, and the maximum oil storage is designed to be about 1.74L. The outer cylinder 101 of the oil separator 1 is provided with 4 sight glass 104, the sight glass 104 is marked with scales, and the volume of oil in the oil can be calculated by observing the height of the oil surface in the oil separator 1, so that the refrigerating oil quantity circulated in the heat pump system can be calculated.
The high-temperature and high-pressure refrigerant mixed with the frozen oil discharged from the compressor enters the oil separator 1 through the interface 2 of the oil separator 2, part of the frozen oil is separated in the oil separator 1 through centrifugal action, then the oil separator 1 is discharged from the interface 1 through the filter screen 103, part of the frozen oil separated from the exhaust gas through centrifugal action falls into an oil storage tank at the bottom of the oil separator 1 along the inner wall surface of the oil outer cylinder 101, and the frozen oil in the oil storage tank can realize oil return from the oil storage tank (high-pressure side) to the air suction port (low-pressure side) of the compressor through the interface 3 under the action of the electronic expansion valve 5 by means of high-low pressure difference.
The embodiment also provides a heat pump system adopting the structure for adjusting the oil supply amount of the air source heat pump system, which comprises a compressor 6, a gas-liquid separator 7, a four-way reversing valve 8, a water side heat exchange 9, a liquid storage tank 10 and a wind side heat exchange 11, wherein a pipeline of the structure for adjusting the oil supply amount of the air source heat pump system, which is connected with the electronic expansion valve 5, is connected to the gas-liquid separator 7, a pipeline of the structure for adjusting the oil supply amount of the air source heat pump system, which is connected with the first electromagnetic valve 2, and a pipeline of the structure for adjusting the oil supply amount of the air source heat pump system, which is connected with the second electromagnetic valve 3, is connected with the four-way valve 8, the four-way valve 8 is also connected with the water side heat exchange 9, the wind side heat exchange 11 and the gas-liquid separator 7, the water side heat exchange 9 is connected with the liquid storage tank 10 through the first electronic expansion valve 12, and the liquid storage tank 10 is connected with the wind side heat exchange 11 through the second electronic expansion valve 13.
As shown in fig. 1, taking a refrigeration cycle as an example, when the amount of refrigerating oil in the heat pump system needs to be regulated, that is, in the regulation mode, the first electromagnetic valve 2 is opened, the second electromagnetic valve 3 is closed, so that the high-temperature and high-pressure refrigerant vapor mixed with the refrigerating oil discharged by the compressor flows through the oil separator 1 to centrifugally separate the oil, the separated refrigerating oil falls into the oil storage tank below the oil separator 1, the opening of the electronic expansion valve 5 downstream of the oil separator 1 is regulated to regulate the oil level height in the oil separator 1, the opening of the electronic expansion valve 5 is in a negative correlation with the oil level height in the oil separator 1, and in a positive correlation with the refrigerating oil amount circulated in the system, specifically, the opening of the electronic expansion valve 5 is increased, the oil level height in the oil separator 1 is decreased, so that the amount of refrigerating oil circulated in the system is decreased, the oil return to the air inlet of the compressor 6 is realized through a high-low pressure difference, the refrigerating oil level circulated in the oil separator 1 is regulated, and the oil level height in the oil separator 1 is regulated to the required height, and then the test mode is entered.
After the amount of refrigerating oil circulating in the heat pump system is regulated, the first electromagnetic valve 2 is closed, the second electromagnetic valve 3 is opened, the opening of the electronic expansion valve is regulated to 0, and the test mode is entered. In the test mode, as the one-way valve 4 is arranged at the other side of the structure for adjusting the oil supply amount of the air source heat pump system, the refrigerant does not flow through the pipeline connecting the first electromagnetic valve 2, the oil separator 1 and the one-way valve 4 in the structure for adjusting the oil supply amount of the air source heat pump system, so that adverse effects on the heat pump system caused by the incorporation of the structure into the heat pump system are avoided, and finally, the aim of performing a refrigerating oil amount simulation experiment test on the performance and the reliability of the heat pump system without oil is fulfilled. In the test mode, the refrigerant steam coming out of the water side heat exchange 9 enters the four-way valve 8, enters the gas-liquid separator 7 through the pressure sensor and the temperature sensor, then enters the air suction port of the compressor 6 for compression, the high-temperature and high-pressure refrigerant steam mixed with the refrigerating oil discharged after the compression of the compressor 6 enters the four-way valve 8 through the pressure switch, the temperature sensor, the second electromagnetic valve 3, the pressure sensor and the first one-way valve, enters the wind side heat exchange 11, and after the refrigerant releases heat through condensation, the refrigerant enters the liquid storage 10 through the filter, the expansion valve and the filter, enters the water side heat exchange 9 for evaporation refrigeration after the throttling and the depressurization of the filter, and then completes the whole refrigeration cycle.
The main difference between the test mode and the adjustment mode in this embodiment is the presence or absence of the oil separator 1, and the final objective is to determine the optimal amount of refrigerating fluid in the system in the test mode, as described above, where the oil level in the oil separator 1 is in a negative correlation with the amount of refrigerating fluid circulating in the system, so that the dynamic non-stop adjustment of the amount of refrigerating fluid in the test system can be achieved by observing and adjusting the oil level in the oil separator 1.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a structure of regulation air source heat pump system oil feed volume which characterized in that: the device comprises an oil separator, a first electromagnetic valve, a second electromagnetic valve, a one-way valve and an electronic expansion valve, wherein an interface of the oil separator is connected with the one-way valve through a pipeline, the interface of the oil separator is connected with the first electromagnetic valve through a pipeline, the interface of the oil separator is connected with the electronic expansion valve through a pipeline, and the pipeline connected with the one-way valve and the pipeline connected with the first electromagnetic valve are connected in parallel with the pipeline connected with the second electromagnetic valve.
2. The structure for adjusting oil supply amount of an air source heat pump system according to claim 1, characterized in that: the oil separator comprises an outer cylinder body and an inner cylinder body, the diameter of the inner cylinder body is 1/2 of that of the outer cylinder body, and a filter screen is arranged at the end part of the inner cylinder body.
3. The structure for adjusting oil supply amount of an air source heat pump system according to claim 2, characterized in that: the outer cylinder of the oil separator is provided with a plurality of sight glass.
4. A heat pump system employing the structure for adjusting the oil supply amount of an air source heat pump system according to any one of claims 1 to 3, characterized in that: the air source heat pump system comprises a compressor, a gas-liquid separator, a four-way reversing valve, water side heat exchange, a liquid storage tank and air side heat exchange, wherein a pipeline of a structure for adjusting oil supply quantity of the air source heat pump system, which is connected with an electronic expansion valve, is connected to the gas-liquid separator, a pipeline of a structure for adjusting oil supply quantity of the air source heat pump system, which is connected with a first electromagnetic valve, and a pipeline of a structure for adjusting oil supply quantity of the air source heat pump system, which is connected with a one-way valve, are connected with the four-way valve, the four-way valve is also connected with the water side heat exchange, the air side heat exchange and the air-liquid separator, the compressor is also connected with the liquid storage tank through the electronic expansion valve, and the liquid storage tank is connected with the air side heat exchange through the electronic expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321196782.1U CN219868601U (en) | 2023-05-18 | 2023-05-18 | Structure for adjusting oil supply quantity of air source heat pump system and heat pump system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321196782.1U CN219868601U (en) | 2023-05-18 | 2023-05-18 | Structure for adjusting oil supply quantity of air source heat pump system and heat pump system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219868601U true CN219868601U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321196782.1U Active CN219868601U (en) | 2023-05-18 | 2023-05-18 | Structure for adjusting oil supply quantity of air source heat pump system and heat pump system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219868601U (en) |
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2023
- 2023-05-18 CN CN202321196782.1U patent/CN219868601U/en active Active
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