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Control device and control method of vacuum drainage pumping station

A vacuum drainage and control device technology, which is applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., can solve the problem that the vacuum degree of the system cannot be maintained within the working range, which is not conducive to the energy-saving operation of the vacuum pump, and the monitoring means do not have the ability to detect the problem. class leaks etc.

Active Publication Date: 2013-03-06
JIANGSU CRRC ENVIRONMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a control method is not conducive to the energy-saving operation of the vacuum pump.
[0007] For the control method of the existing vacuum drainage pumping station, if there is a leak somewhere in the vacuum sewage collection system, the air enters the system, except that the amount of air entering is greater than the evacuation capacity of the vacuum pump, and finally the vacuum degree of the system cannot be maintained at work. Outside the range, if the amount of incoming air is still within the evacuation capacity of the vacuum pump, the existing monitoring methods do not have the ability to detect such leakage, and the system will not send out an alarm message

Method used

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  • Control device and control method of vacuum drainage pumping station
  • Control device and control method of vacuum drainage pumping station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A control device for a vacuum drainage pumping station, combined with Figure 1 to Figure 6 , including a signal input module, an analysis module 5, an execution module 6, and an information output device 7, the analysis module 5 is respectively connected with the signal input module, the execution module 6, and the information output device 7, and the analysis module 5 is used to make input signals Analyze and judge, transmit the operating instructions of the vacuum pump 9 and the sewage pump 10 to the execution module 6, and transmit system parameters and warning information to the information output device 7; The analysis module 5 issues instructions and controls the operation of the vacuum pump 9 and the sewage pump 10; the information output device 7 is connected with the analysis module 5 for externally displaying system parameters and issuing warning messages.

[0059] The signal input module includes a gas flow meter 1, a sewage flow meter 2, a vacuum pressure s...

Embodiment 2

[0087] A control method for a vacuum drainage pumping station, combining Figure 1 to Figure 5 , including the following steps:

[0088] 1) Use the analysis module 5 to pre-set the initial upper limit V of the working vacuum of the system pmax0 is 60kPa and the initial lower limit V pmin0 is 50kPa; use the gas flow meter 1 and the sewage flow meter 2 to monitor the gas flow Q discharged by the vacuum pump 9 and the sewage pump 10 respectively g and sewage flow Q l ; Utilize the analysis module to count a statistical period T as the gas volume V discharged by the vacuum pump 9 and the sewage pump 10 within 30 minutes g and sewage volume V l , and then calculate the air-water ratio K in this statistical period t . in, i=g or l, K t =V g / V l , t is the current moment, and T is the set statistical period. Such as figure 2 Schematic for the sliding integration method.

[0089] Such as image 3 As shown, the dynamic adjustment of the working vacuum degree is carried...

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Abstract

The invention discloses a control device and a control method of a vacuum drainage pumping station. The control device comprises a signal input module, an analyzing module, an execution module and an information output device. The analyzing module is respectively connected with the signal input module, the execution module and the information output module; the execution module is respectively connected with a power source, a vacuum pump and a sewage pump; and the information output device is used for displaying parameters of the system to the outside and for giving out alarm information. The control method includes the steps of: 1) online measuring and statistical monitoring of the gas-water ratio Kt in a statistical period by using the analyzing module; 2)conducting corresponding control operation to working vacuum degree, and realizing dynamic compensation of the vacuum degree and the automatic adjustment of the gas-water ratio; 3) monitoring the vacuum degree Vpt inside a vacuum pot, the sewage level Hlt and the operating state of the sewage pump, and conducting corresponding operations to the operation of the vacuum pump and the sewage pump to control the vacuum pump and the sewage pump in sections; and 4) conducting corresponding control operations to the vacuum pump and the sewage pump.

Description

technical field [0001] The invention relates to the technical field of sewage collection, in particular to a control device and a control method for a vacuum drainage pumping station. Background technique [0002] The vacuum sewage collection system consists of a vacuum drainage terminal, a vacuum pipeline and a vacuum drainage pumping station. The vacuum drainage pump station is composed of vacuum tank, vacuum pump, sewage pump, control system and so on. The vacuum drainage pump station uses negative pressure to collect the sewage and accompanying air transported by the vacuum pipeline into the vacuum collection tank, and then uses the sewage pump and the vacuum pump to discharge the sewage and water air respectively, so as to maintain the sewage water level and vacuum degree in the vacuum tank at the set level. within a certain range. The operation of vacuum pumps and sewage pumps consumes energy. For discharging the same amount of gas or sewage, the energy consumption ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 唐晶李旻邢喆李建军龙超严巾堪
Owner JIANGSU CRRC ENVIRONMENT CO LTD
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