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Vacuum preventing device of turbo-compressor

A technology of turbo compressor and compressor, applied in the field of turbo compressor

Inactive Publication Date: 2008-06-25
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the existing turbo compressor vacuum prevention device prevents the compression chamber P from being highly vacuumed when the pressure of the compression chamber P is too low.

Method used

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  • Vacuum preventing device of turbo-compressor
  • Vacuum preventing device of turbo-compressor
  • Vacuum preventing device of turbo-compressor

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Embodiment Construction

[0037] Hereinafter, the turbo compressor vacuum prevention device of the present invention will be described in detail with reference to the accompanying drawings.

[0038] Figure 4 It is a schematic cross-sectional view of an example of a turbo compressor of the vacuum preventing device of the present invention. Figure 5 It is an enlarged cross-sectional schematic view of the vacuum prevention device of the turbo compressor of the present invention. Figure 6 It is a schematic cross-sectional view of the working state of the vacuum prevention unit when the turbo compressor of the present invention is in normal operation. Figure 7 It is a schematic cross-sectional diagram of the working state of the vacuum prevention unit when the turbocompressor of the present invention operates in high vacuum. Figure 8 It is a schematic cross-sectional view of the working state of the vacuum prevention unit when the turbo compressor of the present invention is stopped.

[0039]As show...

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Abstract

The invention provides a vacuum prevention device of a turbocompressor, which comprises a plurality of vacuum prevention units which are formed according to the moving track of a compression chamber, the vacuum prevention units with a structure which can communicate a suction space and a discharge space of a shell. The invention not only can suck refrigerant of the discharge space when the compressor conducts a high vacuum operation, so that the refrigerant can return to the suction space, and the compression chamber can be prevented from being highly vacuumed; moreover, when the compressor stops, the refrigerant of the discharge space also can return to the suction space, so the inside of the compressor can rapidly achieve pressure balance, and the turbocompressor can be smoothly restarted.

Description

technical field [0001] The present invention is an invention related to a turbo compressor. More specifically, the vacuum prevention device for the turbocompressor of the present invention allows part of the refrigerant discharged into the high pressure chamber to flow into the compression chamber if the compression chamber is vacuumed during the operation of the turbocompressor, preventing the compression chamber from operating in a vacuum state. Background technique [0002] Generally, the movable scroll of the turbo compressor that rotates through the crankshaft has a spiral movable scroll, and forms a continuously moving compression chamber together with a fixed scroll with a spiral movable scroll. The movable scroll rotates eccentrically with the rotation of the crankshaft, so that the volume of the compression chamber gradually decreases, and the refrigerant inside the compression chamber is compressed. When a certain compression ratio is reached, the compressed refrig...

Claims

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Application Information

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IPC IPC(8): F04C18/02F04C29/00
Inventor 韩娜拉金成春
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD