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Two-grade screw rod compressor with flexible slide valve

A screw compressor and compressor technology, applied in the field of compressors, can solve the problems of compressor vibration and noise increase, pressure mismatch, increased power consumption, etc., and achieve the effects of reducing noise and vibration, reducing power and improving efficiency

Inactive Publication Date: 2016-06-29
浙江开山凯文螺杆机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The second stage of the existing two-stage screw compressor adopts a fixed exhaust orifice design. When the demand pressure at the user end changes, because the exhaust orifice is fixed, the end pressure of the compressor does not match the demand pressure at the user end. Undercompression or overcompression occurs, while increasing unnecessary power consumption, the vibration and noise of the compressor are also significantly increased

Method used

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  • Two-grade screw rod compressor with flexible slide valve
  • Two-grade screw rod compressor with flexible slide valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] see figure 1 , figure 2 , the present invention discloses a two-stage screw compressor with a flexible slide valve (also applicable to multi-stage screw compressors), the screw compressor includes: a body, a first-stage compression mechanism 1, a second-stage compression mechanism 2. Transmission mechanism, slide valve 3, first cylinder 33, second cylinder 34.

[0043] The body of the two-stage screw compressor adopts an integrated design, including the air inlet of the two-stage screw compressor, the working chamber of the first-stage compressor, the working chamber of the second-stage compressor, the first-stage compression exhaust port and the second-stage compressor. The two-stage compressed air inlets are communicated through built-in interstage passages.

[0044] The first-stage compression mechanism 1 includes a first-stage rotor 11, and the first-stage rotor 11 is arranged in the working chamber of the first-stage compressor; the second-stage compression mech...

Embodiment 2

[0055] A two-stage screw compressor with a flexible slide valve, the screw compressor includes: a machine body, a first-stage compression mechanism, a second-stage compression mechanism, a transmission mechanism, a slide valve, a first cylinder, and a second cylinder.

[0056] The body of the two-stage screw compressor adopts an integrated design, including the air inlet of the two-stage screw compressor, the working chamber of the first-stage compressor, the working chamber of the second-stage compressor, the first-stage compression exhaust port and the second-stage compressor. The two-stage compressed air inlets are communicated through built-in interstage passages.

[0057] The first-stage compression mechanism includes a first-stage rotor, and the first-stage rotor is arranged in the working cavity of the first-stage compressor; the second-stage compression mechanism includes a second-stage rotor, and the second-stage rotor and the slide valve are arranged in the In the wo...

Embodiment 3

[0062] The difference between this embodiment and Embodiment 1 is that in this embodiment, the screw compressor includes: a compressor housing, an intake valve, and a rotor, and the intake valve includes an intake valve body, a piston, a solenoid valve, a connecting pipeline; the screw compressor is a two-stage screw compressor.

[0063] The compressor housing adopts an integrated design, including the air inlet of the two-stage screw compressor, the first-stage compressor working chamber, the second-stage compressor working chamber, the first-stage compression exhaust port and the second-stage compressor The intake ports are communicated through built-in interstage passages. A pressure-taking port is provided at the interstage channel, and the pressure-taking port is connected with the rear end of the piston of the intake valve.

[0064] After the screw compressor is started, the working pressure is rapidly established in the area where the pressure-taking port provided at t...

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Abstract

The invention discloses a two-grade screw rod compressor with a flexible slide valve. The two-grade screw rod compressor comprises a first-grade compression mechanism, a second-grade compression mechanism, a transmission mechanism, the slide valve, a first cylinder and a second cylinder; the slide valve is arranged on the second-grade compression mechanism between the first cylinder and the second cylinder, and includes a slide valve body; the two ends of the slide valve body are respectively a first end surface and a second end surface; the first end surface and the second end surface respectively seal the first cylinder and the second cylinder; and the slide valve searches the balance under the driving of pressure in the first cylinder and the second cylinder. The two-grade screw rod compressor adopts a working mode of two-grade compression and interstage cooling, so that the compression process is closer to isothermal compression, and the efficiency is higher; and a compression ratio is reasonably distributed, and the bearing design is optimized, so that a host machine is longer in service life. The second-grade compression mechanism is provided with the slide valve, and an exhaust hole is automatically adjusted according to exhaust pressure needed by a user terminal, so that the two-grade screw rod compressor compresses the matching between ending pressure and the pressure needed by the user terminal, and the operation efficiency of the compressor is the highest.

Description

technical field [0001] The invention belongs to the technical field of compressors, and relates to a screw compressor, in particular to a two-stage screw compressor with a flexible sliding valve. Background technique [0002] Existing two-stage screw compressors generally include two-stage screw compression mechanisms, and each screw compression mechanism is composed of a pair of parallel female and male screws that mesh with each other. [0003] The second stage of the existing two-stage screw compressor adopts a fixed exhaust orifice design. When the demand pressure at the user end changes, because the exhaust orifice is fixed, the end pressure of the compressor does not match the demand pressure at the user end. Undercompression or overcompression occurs, while increasing unnecessary power consumption, the vibration and noise of the compressor also increase significantly. [0004] In view of this, there is an urgent need to design a new two-stage screw compressor so as t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/16F04C29/00
CPCF04C18/16F04C29/00
Inventor 汤炎惠登锋
Owner 浙江开山凯文螺杆机械有限公司
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