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Oil retaining device and compressor

A ring body and plate body technology, applied in the field of compressors, can solve the problems of short contact time between refrigerant and oil retaining device, insufficient oil-gas separation, small oil retaining area, etc., to ensure heat exchange efficiency and compressor lubrication, The effect of sufficient separation and large oil retaining area

Pending Publication Date: 2020-02-25
ZHUHAI LANDA COMPRESSOR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an oil retaining device, which is used to solve the technical problems in the prior art that the oil retaining area of ​​the oil retaining device is small, the contact time between the refrigerant and the oil retaining device is short, the separation of oil and gas is insufficient, and the structure is complicated

Method used

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  • Oil retaining device and compressor
  • Oil retaining device and compressor
  • Oil retaining device and compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides an oil retaining device 9, which includes a ring body 1 and a plate body 2. The plate body 2 is arranged on the inner ring wall of the ring body 1 and extends to the inside of the ring body 1. Specifically, the above-mentioned plate body 2 passes through It is connected to the above-mentioned ring body 1 by means of welding or buckle connection, of course, as long as a stable connection can be achieved, any other mechanical connection methods are applicable. Moreover, the plate body is arranged obliquely relative to the above-mentioned ring body. This kind of oil retaining device 9 has the advantages of simple structure and low cost.

[0043] When in use, the ring body 1 is installed in the shell 3 of the compressor and the plate body 2 is blocked at the air passage 8 of the stator 4. It is worth noting that since the refrigerant in the compressor is discharged in the In the gap between the motor and the pump body, the refrigerant passes throug...

Embodiment 2

[0047] This embodiment serves as a specific implementation of Embodiment 1. In this embodiment, as Image 6 As shown, a through groove 21 is provided on the above-mentioned plate body 2, and the through groove 21 runs through the two end surfaces of the plate body 2 in the axial direction of the ring body 1. Optimally, the through groove 21 is provided on the above-mentioned plate body 2 On one side of the plate, more preferably, the cross-sectional shape of the through groove 21 is arc. In addition, the number of the through slots 21 can be one or more.

[0048] With this structure, when the oil retaining device 9 provided in this embodiment is in use, the through groove 21 can increase the contact surface area between the plate body 2 and the refrigerant, thereby improving the effect of the device on changing the gas flow velocity and flow direction.

Embodiment 3

[0050] This embodiment is a preferred implementation mode of the above-mentioned embodiment. In this embodiment, as Figure 7 and Figure 8 As shown, the plate surface of the above-mentioned plate body 2 is inclined relative to the radial direction of the ring body 1 , that is, there is a first included angle between the plate surface of the above-mentioned plate body 2 and the radial direction of the ring body 1 .

[0051] Optimally, the first included angle is limited to α, where 0<α≦45°.

[0052] In this way, the effect of changing the gas flow velocity and flow direction can be better achieved.

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Abstract

The invention relates to an oil retaining device and a compressor, and belongs to the technical field of compressors. The oil retaining device comprises a ring body and plate bodies; the plate bodiesare arranged on the inner ring wall of the ring body and extend to the interior of the ring body; the plate bodies are obliquely arranged relative to the ring body; the compressor comprises a shell, amotor and the oil retaining device; the motor is arranged in the shell and a stator of the motor is connected with the shell; the stator is provided with air passages; the oil retaining device is arranged in the shell and is located at the side of the stator; and the plate bodies of the oil retaining device block the air passages. When being used for the compressor, the oil retaining device having such a structure can block the moving path of a refrigerant flowing through the air passages, and thereby, the flowing speed and the flowing direction of the refrigerant are changed; the oil retaining area of each plate body is large, so that the contact time between the refrigerant and the oil retaining device is longer so as to separate part of refrigeration oil in the refrigerant, and thus, the oil content of the refrigerant flowing through the air passages is reduced, the amount of the refrigeration oil discharged out of the compressor is reduced, and then, the heat exchange efficiency of a refrigeration system using the compressor and lubrication of the compressor are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of compressors, in particular to an oil retaining device and a compressor. Background technique [0002] During the operation of the compressor, after the refrigeration oil enters the system with the refrigerant, it will have a certain impact on the performance of the system. Refrigerant oil is mixed in the refrigerant, which will increase the evaporation temperature of the refrigerant, and the evaporation temperature will gradually increase with the increase of the oil content. If the evaporating temperature increases, the heat transfer temperature difference decreases, which directly leads to a decrease in the cooling capacity of the evaporator. Moreover, the refrigerating oil mixed in the refrigerant will condense on the surface of the condenser to form an oil film. In the evaporator, the refrigerated oil is difficult to evaporate, and an oil film will also be formed, which also affects the heat exchang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/02F04C29/04F04C23/02
CPCF04C23/02F04C29/02F04C29/026F04C29/04
Inventor 高永红黄振丽
Owner ZHUHAI LANDA COMPRESSOR