Bidirectional impeller pressurizing structure of compressor, centrifugal compressor and air conditioner

A technology of supercharging structure and compressor, applied in the field of compressors, can solve the problems of difficulty in the assembly process and complex structure, and achieve the effect of good axial force and balance of axial force

Pending Publication Date: 2022-03-08
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a two-way impeller supercharging structure of a compressor, a centrifugal compressor and an air conditioner, which solves the problem of complex structure and difficult assembly process of the two-stage centrifugal compressor using two separate impellers in the prior art larger technical issues

Method used

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  • Bidirectional impeller pressurizing structure of compressor, centrifugal compressor and air conditioner
  • Bidirectional impeller pressurizing structure of compressor, centrifugal compressor and air conditioner
  • Bidirectional impeller pressurizing structure of compressor, centrifugal compressor and air conditioner

Examples

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Embodiment 1

[0033] see Figure 2-Figure 3 , the present invention provides a two-way impeller supercharging structure of a compressor, including a two-way impeller 1 and a connecting channel 6 with blades arranged on both sides of the left and right sides. The two-way impeller 1 is preferably integrally formed, wherein the left blade of the two-way impeller 1 101 corresponds to the primary air inlet 2 and the primary exhaust port 3 of the compressor, the right blade 102 of the two-way impeller 1 corresponds to the secondary air intake 4 and the secondary exhaust port 5 of the compressor, and the connecting channel 6 connects a Stage exhaust port 3 and secondary air intake port 4.

[0034] Specifically, the bidirectional impeller supercharging structure also includes a shell structure 7 with a central through hole formed inside, the bidirectional impeller 1 is located in the central through hole and the two ends of the central through hole form the primary air inlet 2 and the secondary air...

Embodiment 2

[0041] Different from Example 1: see figure 2 , a bypass channel 8 is formed in the shell structure 7, and the bypass channel 8 communicates with the first-level air inlet 2 and the first-level air outlet cavity 701; The size of the flow area. When the overall axial force on the bidirectional impeller 1 is to the left, the flow area of ​​the bypass passage 8 is adjusted through the adjustment structure, and the high-pressure gas in the primary air outlet chamber 701 flows to the primary air inlet 2 through the bypass passage 8, so that a The pressure of the first-stage air inlet 2 is increased, the pressure difference between the first-stage exhaust port 3 and the first-stage air inlet 2 is reduced, and the axial force on the two-way impeller 1 as a whole is reduced to the left. By adjusting the structure, adjust The size of the flow area of ​​the bypass channel 8 changes the flow of gas from the primary exhaust port 3 to the primary air inlet 2. Of course, the bypass channe...

Embodiment 3

[0044] see figure 2, a centrifugal compressor, comprising a motor 10 and a bidirectional impeller supercharging structure of the compressor provided in embodiment 1 or embodiment 2, the rotating shaft of the motor 10 is connected to the bidirectional impeller 1 of the bidirectional impeller supercharging structure. When the two-way impeller supercharging structure is installed on the centrifugal compressor, the centrifugal compressor is started, the two-way impeller 1 rotates, the gas enters through the primary air inlet 2, and after being pressurized by the left blade 101 of the two-way impeller 1, it passes through The primary exhaust port 3 is discharged, the pressurized gas discharged from the primary exhaust port 3 flows through the connecting channel 6 to the secondary air inlet 4, and the high-pressure gas discharged from the secondary air inlet 4 passes through the right blade of the two-way impeller 1 After 102 is pressurized again, it is discharged from the secondar...

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Abstract

The invention provides a two-way impeller supercharging structure of a compressor, a centrifugal compressor and an air conditioner, relates to the technical field of compressors, and solves the technical problems that a two-stage centrifugal compressor adopting two independent impellers in the prior art is complex in structure and high in difficulty in the assembly process. The bidirectional impeller supercharging structure comprises a bidirectional impeller and a connecting channel, blades are arranged on the left side and the right side of the bidirectional impeller, the left blade of the bidirectional impeller corresponds to a first-stage air inlet and a first-stage air outlet of the compressor, and the right blade of the bidirectional impeller corresponds to a second-stage air inlet and a second-stage air outlet of the compressor. And the connecting channel is connected with the primary air outlet and the secondary air inlet. The structure of the compressor is simplified, the cost is reduced, the stability of the rotor is improved, and the reliability of a rotor system is improved.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a bidirectional impeller supercharging structure of a compressor, a centrifugal compressor and an air conditioner. Background technique [0002] In the field of refrigeration, the compressor is a particularly critical link in the refrigeration system. As a kind of compressor, the centrifugal compressor is widely used in the field of commercial refrigeration because of its ability to provide high-efficiency and large-capacity gas compression. Centrifugal compressors include an impeller that rotates about an axis to draw gas into the compressor from a suction port and compress the gas to an outlet. The impeller is the core rotor part of the centrifugal compressor. When the centrifugal compressor works, the impeller does work to increase the gas pressure. Due to the pressure difference between the inlet and outlet, a force parallel to the axis is generated, which is called the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D17/10F04D29/051F04D29/28F04D29/42F04D29/46F04D29/66
CPCF04D17/105F04D29/284F04D29/4206F04D29/4213F04D29/462F04D29/051F04D29/662
Inventor 钟瑞兴张治平蒋楠庞晓阳
Owner GREE ELECTRIC APPLIANCES INC
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