CN216448413U - Refrigerating system capable of reducing oil return temperature of compressor - Google Patents
Refrigerating system capable of reducing oil return temperature of compressor Download PDFInfo
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- CN216448413U CN216448413U CN202122419504.5U CN202122419504U CN216448413U CN 216448413 U CN216448413 U CN 216448413U CN 202122419504 U CN202122419504 U CN 202122419504U CN 216448413 U CN216448413 U CN 216448413U
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Abstract
The utility model relates to a refrigeration system for reducing return oil temperature of a compressor, which comprises a compressor, a condenser and an evaporator, wherein an oil-gas separator is arranged between the compressor and the condenser, a gas-liquid separator is arranged between the evaporator and the compressor, an air inlet of the compressor is connected with an air outlet of the gas-liquid separator through a first connecting pipe, a liquid inlet of the gas-liquid separator is connected with the evaporator through a second connecting pipe, an air outlet of the compressor is connected with an air inlet of the oil-gas separator, an air outlet of the oil-gas separator is connected with the condenser, an oil outlet of the oil-gas separator is communicated with the first connecting pipe through a third connecting pipe, and the third connecting pipe finally converges to the first connecting pipe through the second connecting pipe. The utility model has the following advantages: on the premise of not occupying extra space and extra investment cost, the oil return temperature is effectively reduced, so that the stable and efficient operation of the compressor is ensured.
Description
The technical field is as follows:
the utility model belongs to the field of refrigeration systems, and particularly relates to a refrigeration system for reducing oil return temperature of a compressor.
Background art:
the basic principle of the refrigeration system is that a compressor operates to compress a refrigerant with lower pressure into a refrigerant with higher pressure, so that the volume of the refrigerant is reduced, the pressure is increased, the compressor sucks a working medium refrigerant with lower pressure discharged from an evaporator, the working medium refrigerant with lower pressure is increased and enters a condenser, the liquid with higher pressure is condensed in the condenser, the liquid with lower pressure is formed by throttling action of a throttle valve and then is sent into the evaporator, the liquid absorbs heat in the evaporator and is evaporated into steam with lower pressure, and the steam is sent into an inlet of the compressor, so that the refrigeration cycle is completed. During operation of the compressor, in order to ensure that all internal components can work in a cyclic and coordinated manner, the components need to be lubricated by the refrigerant oil. A certain amount of refrigeration oil is usually added to the interior of the compressor. The refrigerant oil is discharged from the compressor discharge port along with the refrigerant during the operation of the compressor. In order to ensure that the refrigerant oil can be quickly returned to the compressor, and at the same time, the refrigerant oil is not allowed to flow into the condenser and the evaporator, so that the condensing and evaporating effects are not affected, it is common practice to add an oil-gas separation device at the exhaust port end of the compressor. After the mixed gas discharged from the exhaust port of the compressor passes through the oil-gas separation device, the refrigerant flows into the condenser, and the refrigerant oil flows back into the compressor to continue lubrication.
As shown in fig. 2, after being discharged from the compressor, the mixed gas of the refrigerant and the refrigerant oil enters an oil-gas separator to separate the refrigerant oil from the refrigerant gas, and the separated refrigerant enters a condenser, then enters an evaporator, and finally passes through a gas-liquid separator to finally complete one cycle. And the refrigeration oil is separated and then directly returned to the compressor to complete one circulation. The method well solves the problem of the loss of the refrigerant oil, and simultaneously can prevent the refrigerant oil from attaching to the inner walls of the condenser and the evaporator, thereby influencing the condensation and evaporation effects. But also brings another problem: the return air temperature of the compressor is increased virtually. If the return air temperature of the compressor is too high, the wear of the compressor is increased on the one hand, and the performance of the whole refrigerating system is affected on the other hand. Therefore, in order to solve the problem of overhigh return oil temperature, the refrigeration oil separated out from the oil-gas separator is preferably cooled first and then conveyed back to the compressor. At present, fans are additionally arranged for heat dissipation or a refrigerating oil condenser is additionally arranged on the market, the temperature of the refrigerating oil can be effectively reduced by the methods, but the newly-added device needs to occupy additional space on one hand and needs to increase more additional cost on the other hand.
The utility model has the following contents:
the utility model aims to overcome the defects and provide a refrigeration system for reducing the oil return temperature of a compressor, which effectively reduces the oil return temperature on the premise of not occupying extra space and extra investment cost, thereby ensuring the stable and efficient operation of the compressor.
The purpose of the utility model is realized through the following technical scheme: the utility model provides a reduce refrigerating system of compressor oil return temperature, which comprises a compressor, condenser and evaporimeter, oil and gas separator has between compressor and the condenser, vapour and liquid separator has between evaporimeter and the compressor, the air inlet of compressor is connected through first connecting pipe with vapour and liquid separator's gas vent, vapour and liquid separator's inlet and evaporimeter pass through the second connecting pipe and are connected, the gas vent of compressor is connected with oil and gas separator's air inlet, oil and gas separator's gas vent is connected with the condenser, oil separator's oil drain port passes through third connecting pipe and first connecting pipe intercommunication, the third connecting pipe passes through the second connecting pipe and finally converges to first connecting pipe.
The utility model is further improved in that: the third connecting pipe comprises a first connecting section, a second connecting section and a third connecting section which are sequentially communicated, the second connecting section is wound on the second connecting pipe, one end of the first connecting section is connected with the oil-gas separator, the other end of the first connecting section is connected with one end of the second connecting section, the other end of the second connecting section is connected with one end of the third connecting section, and the other end of the third connecting section is communicated with the first connecting pipe.
The utility model is further improved in that: the second connecting section is a spiral structure wound on the second connecting pipe.
The utility model is further improved in that: the second connecting section is disposed adjacent to the gas-liquid separator.
The utility model is further improved in that: the first connecting section, the second connecting section and the third connecting section are of an integrated forming structure, and the third connecting pipe is a capillary copper pipe.
Compared with the prior art, the utility model has the following advantages:
1. set up the third connecting pipe between oil and gas separator and first connecting pipe in this application, the third connecting pipe is through the second connecting pipe and finally converges to first connecting pipe, after high temperature refrigeration oil separates from oil and gas separator, utilize the refrigerant of outflow evaporimeter earlier to dispel the heat, in the compressor is got back to first connecting pipe rethread, when guaranteeing the normal backward flow of compressor refrigeration oil, effectively reduce the refrigeration oil temperature under the prerequisite that does not occupy extra space and extra expense, guarantee the normal life of compressor, guarantee the steady high-efficient operation of compressor.
2. The refrigerant is behind the evaporimeter, can become low temperature low pressure gaseous state, export the compressor air inlet from the evaporimeter, the refrigerant can lose a large amount of cold volumes to vapour and liquid separator in-process by the evaporimeter, its cold volume can scatter and disappear in the air promptly, utilize this part cold volume to cool down to the refrigeration oil in the third connecting pipe in this application, the second connecting segment of third connecting pipe is the outside of heliciform structure convolution at the second connecting pipe, thereby lengthened the cooling route, the improvement is to the cooling effect of refrigeration oil.
3. The third connecting pipe is a capillary copper pipe, has the advantages of being easy to bend and twist, has excellent properties of frost heaving resistance and impact resistance, and provides an effective foundation for the flowing of the refrigeration oil.
Description of the drawings:
fig. 1 is a schematic diagram of a refrigeration system for reducing the return oil temperature of a compressor according to the present invention.
Fig. 2 is a prior art diagram.
Reference numbers in the figures:
1-a compressor, 2-a condenser, 3-an evaporator, 4-an oil-gas separator, 5-a gas-liquid separator, 6-a first connecting pipe, 7-a second connecting pipe and 8-a third connecting pipe;
81-first connection segment, 82-second connection segment, 83-third connection segment.
The specific implementation mode is as follows:
for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship, such as one based on the drawings, are used only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the structure or unit indicated must have a specific orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise specified and limited, terms such as "connected," "provided," "having," and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, or directly connected, and may be connected through an intermediate medium, so that those skilled in the art can understand the basic meaning of the above terms in the present invention according to specific situations.
Fig. 1 shows an embodiment of a refrigeration system for reducing return oil temperature of a compressor according to the present invention, which includes a compressor 1, a condenser 2, and an evaporator 3, an oil-gas separator 4 is disposed between the compressor 1 and the condenser 2, a gas-liquid separator 5 is disposed between the evaporator 3 and the compressor 1, an air inlet of the compressor 1 is connected to an air outlet of the gas-liquid separator 5 through a first connecting pipe 6, a liquid inlet of the gas-liquid separator 5 is connected to the evaporator 3 through a second connecting pipe 7, an air outlet of the compressor 1 is connected to an air inlet of the oil-gas separator 4, an air outlet of the oil-gas separator 4 is connected to the condenser 2, an oil outlet of the oil-gas separator 4 is communicated to the first connecting pipe 6 through a third connecting pipe 8, and the third connecting pipe 8 is connected to the first connecting pipe 6 through the second connecting pipe 7.
Set up third connecting pipe 8 between oil and gas separator 4 and first connecting pipe 6 in this application, third connecting pipe 8 is through second connecting pipe 7 and finally converges to first connecting pipe 6, after high temperature refrigeration oil separates from oil and gas separator 4, utilize the refrigerant of outflow evaporimeter 3 earlier to dispel the heat, rethread first connecting pipe 6 gets back to in the compressor 1, when guaranteeing that compressor 1 refrigeration oil normally flows back, effectively reduce the refrigeration oil temperature under the prerequisite that does not occupy extra space and extra cost, guarantee compressor 1's normal life, guarantee compressor 1's steady high-efficient operation.
Further, the third connecting pipe 8 includes a first connecting segment 81, a second connecting segment 82 and a third connecting segment 83 which are sequentially communicated, the second connecting segment 82 is wound on the second connecting pipe 7, one end of the first connecting segment 81 is connected with the oil-gas separator 4, the other end of the first connecting segment 81 is connected with one end of the second connecting segment 82, the other end of the second connecting segment 82 is connected with one end of the third connecting segment 83, and the other end of the third connecting segment 83 is communicated with the first connecting pipe 6.
Further, the second connection segment 82 is a spiral structure wound on the second connection pipe 7.
The refrigerant is behind evaporimeter 3, can become low temperature low pressure gaseous state, export compressor 1 air inlet from evaporimeter 3, the refrigerant can lose a large amount of cold volumes to vapour and liquid separator 5 in-process by evaporimeter 3, its cold volume can scatter and disappear in the air promptly, utilize this part cold volume to cool down to the refrigeration oil in the third connecting pipe 8 in this application, the second connecting section 82 of third connecting pipe 8 is the outside of heliciform structure convolution at second connecting pipe 7, thereby the cooling route has been prolonged, improve the cooling effect to the refrigeration oil.
Further, the second connecting section 82 is disposed near the gas-liquid separator 5.
Furthermore, the first connecting section 81, the second connecting section 82 and the third connecting section 83 are integrally formed, and the third connecting pipe 8 is a capillary copper pipe, which has the advantages of being easy to bend and twist, and has excellent properties of frost heaving resistance and impact resistance, thereby providing an effective foundation for the flow of the refrigeration oil.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only for the purpose of illustrating the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a reduce refrigerating system of compressor oil return temperature which characterized in that: including compressor, condenser and evaporimeter, oil and gas separator has between compressor and the condenser, vapour and liquid separator has between evaporimeter and the compressor, the air inlet of compressor and vapour and liquid separator's gas vent is connected through first connecting pipe, vapour and liquid separator's inlet and evaporimeter are connected through the second connecting pipe, the gas vent of compressor is connected with oil and gas separator's air inlet, oil and gas separator's gas vent is connected with the condenser, oil and gas separator's oil drain port passes through third connecting pipe and first connecting pipe intercommunication, the third connecting pipe is through the second connecting pipe and finally converges to first connecting pipe.
2. A refrigeration system for reducing oil return temperature of a compressor as recited in claim 1 further comprising: the third connecting pipe comprises a first connecting section, a second connecting section and a third connecting section which are sequentially communicated, the second connecting section is wound on the second connecting pipe, one end of the first connecting section is connected with the oil-gas separator, the other end of the first connecting section is connected with one end of the second connecting section, the other end of the second connecting section is connected with one end of the third connecting section, and the other end of the third connecting section is communicated with the first connecting pipe.
3. A refrigeration system for reducing oil return temperature of a compressor as recited in claim 2 wherein: the second connecting section is a spiral structure wound on the second connecting pipe.
4. A refrigeration system for reducing oil return temperature of a compressor as recited in claim 3 wherein: the second connecting section is disposed adjacent to the gas-liquid separator.
5. The refrigeration system for reducing oil return temperature of a compressor of claim 4, wherein: the first connecting section, the second connecting section and the third connecting section are of an integrated forming structure, and the third connecting pipe is a capillary copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122419504.5U CN216448413U (en) | 2021-10-09 | 2021-10-09 | Refrigerating system capable of reducing oil return temperature of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122419504.5U CN216448413U (en) | 2021-10-09 | 2021-10-09 | Refrigerating system capable of reducing oil return temperature of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216448413U true CN216448413U (en) | 2022-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122419504.5U Active CN216448413U (en) | 2021-10-09 | 2021-10-09 | Refrigerating system capable of reducing oil return temperature of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216448413U (en) |
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2021
- 2021-10-09 CN CN202122419504.5U patent/CN216448413U/en active Active
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