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Method for reducing compressor halt vibration

A compressor and shutdown technology, applied in the field of compressor control, can solve problems such as reducing user experience, compressor damage, mechanical parts damage, etc., to achieve the effect of being conducive to long-term use, improving service life, and achieving smooth shutdown

Inactive Publication Date: 2017-12-22
CHANGHONG HUAYI COMPRESSOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cylinder collision will cause serious damage to a series of parts such as cylinder, piston, piston rod, piston pin, crosshead, etc.
In the worst case, the entire compressor will be damaged
In addition, the noise generated by the shutdown vibration will also cause sound pollution to the user and reduce the user experience.

Method used

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  • Method for reducing compressor halt vibration
  • Method for reducing compressor halt vibration
  • Method for reducing compressor halt vibration

Examples

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Embodiment Construction

[0027] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0028] The present invention provides a method for reducing compressor shutdown vibration. The method for reducing compressor shutdown vibration includes: when the compressor is shut down, the rotation speed of the driver of the compressor is decelerated to a preset rotation speed at a preset rate. When the rotational speed of the driver is at a preset rotational speed, the driver stops the output of driving electric power.

[0029] figure 1 Shown is the shutdown current waveform without taking any measures. It can be seen that the motor current suddenly increases when the motor is stopped, and the current value at this time is much greater than the normal oper...

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Abstract

The invention relates to the field of compression control, and discloses a method for reducing compressor halt vibration. The method for reducing compressor halt vibration comprises the steps that during compressor halting, the rotating speed of a driver of a compressor is decreased to a preset rotating speed with a preset rate, and under the condition that the rotating speed of the driver is in the preset rotating speed, the driver stops driving electrical work output. By means of the method for reducing compressor halt vibration, the problems that in the prior art, during compressor halting, due to vibration, when a piston reaches an internal and external stopping points, direct or indirect collision with the air cylinder end face of the air cylinder exists is solved, and vibration resistance during accident halting of the compression is achieved.

Description

technical field [0001] The invention relates to the field of compressor control, in particular to a method for reducing compressor shutdown vibration. Background technique [0002] The compressor often vibrates when it is shut down, especially when the system suddenly loses power and shuts down, the vibration is particularly large. Due to the large vibration, a series of internal components of the cylinder may be worn and even the entire compressor may be damaged. [0003] Specifically, when the piston compressor is shut down due to power failure, when the piston reaches the inner and outer dead centers due to vibration, it directly or indirectly collides with the end face of the cylinder, which is called "cylinder collision". Cylinder collision will cause serious damage to a series of parts such as cylinder, piston, piston rod, piston pin, crosshead and so on. In the worst case, the entire compressor will be damaged. In addition, the noise generated by the shutdown vibra...

Claims

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Application Information

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IPC IPC(8): F04B49/06
CPCF04B49/06
Inventor 张天富刘运中
Owner CHANGHONG HUAYI COMPRESSOR CO LTD
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