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A kind of mixing control method of air compressor unit

An air compressor unit, hybrid control technology, applied in pump control, mechanical equipment, machine/engine, etc., to achieve the effect of extending service life, saving money, and reducing maintenance costs

Active Publication Date: 2016-05-11
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of mixed control can make up for the fact that the capacity of one compressor cannot meet the production requirements, but several compressors must be used to meet the production, and it is required not to cause fluctuations in production, similar to the occasion of using a compressor with a large capacity

Method used

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  • A kind of mixing control method of air compressor unit
  • A kind of mixing control method of air compressor unit
  • A kind of mixing control method of air compressor unit

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Embodiment 1: as Figure 4 , Figure 5 As shown, a hybrid control method for an air compressor unit,

[0018] This embodiment provides a mixing control method for an air compressor unit. According to the corresponding relationship between the frequency of the compressor and the air supply volume, a PID adjustment circuit and a hand-operated circuit are set in the control system, and the control mode of PID automatic adjustment and hand-held manual adjustment is used to adjust the air compressor unit. air flow volume. Improve the degree of automatic control of the compressor to ensure that the gas supply is in a stable state when the process production fluctuates or the compressor fails.

[0019] The mixing control device for the air compressor unit described in this embodiment uses three compressors at a fixed frequency, and the air supply volume is constant at this time, that is, the air volume regulated by the other two compressors = Set value—the sum of the air s...

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Abstract

The invention relates to a hybrid control method for an air compressor set. The hybrid control method comprises the following steps that a hand operator and a PID controlled module provided by a control system are utilized, technological operation personnel carry out selection according to the change of technological production loads, and a compressor in automatic control is determined to carry out PID automatic control; the other compressors are put into manual fixed frequency control, and production is guaranteed. The method has the advantages that equipment capacity defects can be overcome, equipment does not need to be replaced, and capital is saved; the frequency of the compressors can be flexibly adjusted according to production needs, production can be met, the service life of the equipment can be prolonged, and the maintenance cost is lowered; the equipment can be maintained in time, failures can be foreknown and removed, the service life of the equipment can be prolonged as well, and the maintenance cost can be lowered.

Description

technical field [0001] The invention relates to a mixing control method for an air compressor unit, which belongs to the technical field of chemical machinery. Background technique [0002] Existing technology In the process of chemical production, when one compressor has insufficient capacity and several compressors are required to work simultaneously to control the gas flow, the fixed frequency adjustment of a single compressor is generally used to operate each compressor independently to achieve control the goal of. According to the control principle, the control block diagram of the most basic control scheme is as follows: figure 1 ; [0003] Problems existing in the prior art: [0004] CDM_N 2 The dilution air volume of the O emission reduction device is jointly provided by 5 air compressors. Each compressor is fixed at a given frequency by a single-circuit handheld operator, and the dilution air volume of the device is maintained by manually monitoring the flow ra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06
Inventor 刘忠鹏张宇李墨林张挺王斌井雷曲伟华闻铮铮荣学生
Owner PETROCHINA CO LTD
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