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Anti-surge control system for gm blower without flowmeter in sewage treatment plant

A technology of sewage treatment plant and control system, applied in pump control, mechanical equipment, machine/engine, etc., can solve the problems of flowmeter occupying space, inability to realize, inaccurate flow parameters, etc., to reduce failure points and layout Space, eliminate the effect of inaccurate flow parameters

Active Publication Date: 2017-05-10
SHENYANG BLOWER WORKS GRP AUTOMATIC CONTROL SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the flowmeter usually requires a long straight pipe section, it cannot be realized in many sites
In addition, the flowmeter not only occupies the space required for fan layout, but also requires corresponding material resources and construction manpower. If the flowmeter is not installed properly, the flow parameters will be inaccurate, which will lead to unit operation problems.

Method used

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  • Anti-surge control system for gm blower without flowmeter in sewage treatment plant
  • Anti-surge control system for gm blower without flowmeter in sewage treatment plant
  • Anti-surge control system for gm blower without flowmeter in sewage treatment plant

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Embodiment Construction

[0020] see figure 1 , an anti-surge control system for a GM blower without a flowmeter in a sewage treatment plant provided by an embodiment of the present invention includes a fan inlet temperature monitoring module (i.e. figure 1 Platinum thermal resistance TE110 in the middle), fan outlet pressure monitoring module (ie figure 1 Pressure transmitter PT11), anti-surge valve 2, first control module FIC110, second control module PIC11, first positioner FZT11, second positioner PZT110 and inlet guide vane electric actuator 1.

[0021] The pressure transmitter PT11 monitors the outlet pressure of the fan, and transmits the monitored pressure signal to the first control module FIC110. The initial setting value of the fan outlet pressure pressure change rate is ±100mbar / 100ms. The platinum thermal resistance TE110 is used to monitor the inlet temperature of the fan, and transmit the monitored temperature signal to the second control module PIC11.

[0022] The first control modul...

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Abstract

The invention discloses an anti-surge control system for a GM blower without a flow meter used in a sewage treatment plant, which includes a fan inlet temperature monitoring module, a fan outlet pressure monitoring module, an anti-surge valve, a first control module FIC110, a second control module, The first positioner FZT11, the second positioner PZT110, and the electric actuator of the inlet guide vane; the present invention monitors and controls the outlet pressure of the fan and the temperature at the inlet of the fan, thereby accurately and effectively preventing panting Vibration control reduces failure points.

Description

technical field [0001] The invention relates to the field of sewage treatment control, in particular to an anti-surge control system without a flow meter for a GM blower used in a sewage treatment plant. Background technique [0002] In the past, the unit control system used the dual-parameter function control of the flow and outlet pressure calculated by the flowmeter. When the unit was close to the surge state, the flow-pressure of the unit was guaranteed to operate in a safe area by adjusting the anti-surge valve. But because the flow meter usually needs a long straight pipe section, it cannot be realized in many sites. In addition, the flowmeter not only occupies the space required for fan layout, but also requires corresponding material resources and construction manpower. If the flowmeter is not installed properly, the flow parameters will be inaccurate, which will lead to unit operation problems. Contents of the invention [0003] The technical problem to be solved...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/02
Inventor 林乐渠鸾贾超刘迪昕
Owner SHENYANG BLOWER WORKS GRP AUTOMATIC CONTROL SYST ENG