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Automatic adjusting method of water supply pressure

An automatic adjustment and pressure technology, applied in water supply devices, water supply devices, machines/engines, etc., can solve problems affecting user production, pressure fluctuations in pipe networks, and heavy workload, so as to save energy and labor costs and meet water demand , the effect of constant pressure

Inactive Publication Date: 2015-06-03
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the large changes in the water consumption of users, the pressure of the pipe network will change at any time, requiring on-site workers to frequently adjust the valves. Adjusting the valve opening will affect the production of subsequent users
At the same time, the opening of the valve also requires long-term experience accumulation, which is difficult for a new worker to master

Method used

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  • Automatic adjusting method of water supply pressure

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Experimental program
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Effect test

Embodiment Construction

[0016] The water supply pressure automatic adjustment system is to install a set of pressure transmitter on the output main pipe of the water supply pump, install a PID regulator in the control room, connect the output signal of the pressure transmitter to the input end of the PID regulator, and install it in the water pump control cabinet. A frequency converter is installed inside, the output signal of the PID regulator adjusted by constant pressure is connected to the input terminal of the frequency converter, and the output of the frequency converter is connected to the water pump motor.

[0017] First, set the working mode of the frequency converter to automatic, set the PI value in the PID regulator according to the response time, and set a given pressure value according to the user's requirements, and set the adjustment effect to reverse. When the user's water consumption in the pipe network changes, the pressure of the pipe network changes, and the pressure transmitter i...

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Abstract

The invention belongs to the field of industrial water supply auto-control systems and provides an automatic adjusting method of water supply pressure. A pressure transmitter is mounted on a discharge master pipe of a water supply pump; a regulator is installed in a control room; a frequency converter is mounted in a pump control cabinet; an output signal of the pressure transmitter is connected to the input end of the regulator; the output signal subjected to constant pressure regulation by the regulator is connected to the input end of the frequency converter; output of the frequency converter is connected to a pump motor. A network pressure signal detected by the pressure transmitter is sent to a PID (proportion integration differentiation) regulator, a given pressure value is set in the regulator, actual pressure detected is compared with the given pressure value, a reverse mA value is output, the frequency converter is controlled to output proper frequency, running speed of the pump motor is changed, balance of water supply is adjusted, and constant pressure of a discharge network is achieved.

Description

technical field [0001] The invention belongs to the field of industrial water supply automatic control system. Background technique [0002] The core of the water supply system is to ensure the stability of water pressure for water supply users, especially in industrial systems, such as systems that supply blast furnaces or rolling lines, which have very strict requirements on water supply pressure indicators. In general, workers adjust the water outlet pressure by adjusting the opening of the water outlet valve of the water pump. [0003] However, due to the large changes in the water consumption of users, the pressure of the pipe network will change at any time, requiring on-site workers to frequently adjust the valves. Adjusting the opening of the valve will affect the production of subsequent users. At the same time, the opening of the valve also requires long-term experience accumulation, which is difficult for a new worker to master. [0004] Therefore, installing a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06E03B1/00
Inventor 李日清王瑞红
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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