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A platform for research: civil engineering, architecture and urbanism
Constant-pressure water supply system control circuit based on general frequency converter
The invention discloses a constant-pressure water supply system control circuit based on a general frequency converter. The control circuit is applied among the general frequency converter, a main pump, an auxiliary pump and a pressure gauge. The input end of the constant-pressure water supply system control circuit is connected with the pressure gauge, and the output end of the constant-pressure water supply system control circuit outputs control voltage and auxiliary pump control signals to be sequentially connected with an external analog voltage control input port of the general frequency converter and an auxiliary pump enable. The main water pump is connected with a three-phase output end of the general frequency converter; the auxiliary pump is connected with an input three-phase power supply; the constant-pressure water supply control circuit obtains the deviation value between the set pressure and the actual water supply pressure of the pressure gauge and conducts pressure compensation on the deviation value to obtain the frequency converter control voltage and the auxiliary pump control signal, the output frequency of the frequency converter and operation of the auxiliary pump are controlled, then the water supply pressure is adjusted, and constant-pressure control over the water supply system is achieved. The constant-pressure water supply control circuit can realize constant-pressure water supply control, and has the characteristics of simple circuit structure, high reliability and strong practicability.
本发明公开了一种基于通用变频器的恒压供水系统控制电路，应用于通用变频器、主泵、辅助泵和压力表之间；所述恒压供水系统控制电路的输入端与压力表相连，恒压供水系统控制电路的输出端输出控制电压及辅助泵控制信号依次与通用变频器的外部模拟电压控制输入端口和辅助泵使能相连，主水泵与通用变频器的三相输出端连接、辅助泵与输入三相电源相连；所述恒压供水控制电路通过获取设定压力与压力表的实际供水压力之间的偏差量，并对该偏差量进行压力补偿得到变频器控制电压及辅助泵控制信号，控制变频器输出频率及辅助泵运行，进而调节供水压力，实现供水系统的恒压控制。本发明可以实现恒压供水控制，具有电路结构简单、可靠性高和实用性强特点。
Constant-pressure water supply system control circuit based on general frequency converter
The invention discloses a constant-pressure water supply system control circuit based on a general frequency converter. The control circuit is applied among the general frequency converter, a main pump, an auxiliary pump and a pressure gauge. The input end of the constant-pressure water supply system control circuit is connected with the pressure gauge, and the output end of the constant-pressure water supply system control circuit outputs control voltage and auxiliary pump control signals to be sequentially connected with an external analog voltage control input port of the general frequency converter and an auxiliary pump enable. The main water pump is connected with a three-phase output end of the general frequency converter; the auxiliary pump is connected with an input three-phase power supply; the constant-pressure water supply control circuit obtains the deviation value between the set pressure and the actual water supply pressure of the pressure gauge and conducts pressure compensation on the deviation value to obtain the frequency converter control voltage and the auxiliary pump control signal, the output frequency of the frequency converter and operation of the auxiliary pump are controlled, then the water supply pressure is adjusted, and constant-pressure control over the water supply system is achieved. The constant-pressure water supply control circuit can realize constant-pressure water supply control, and has the characteristics of simple circuit structure, high reliability and strong practicability.
本发明公开了一种基于通用变频器的恒压供水系统控制电路，应用于通用变频器、主泵、辅助泵和压力表之间；所述恒压供水系统控制电路的输入端与压力表相连，恒压供水系统控制电路的输出端输出控制电压及辅助泵控制信号依次与通用变频器的外部模拟电压控制输入端口和辅助泵使能相连，主水泵与通用变频器的三相输出端连接、辅助泵与输入三相电源相连；所述恒压供水控制电路通过获取设定压力与压力表的实际供水压力之间的偏差量，并对该偏差量进行压力补偿得到变频器控制电压及辅助泵控制信号，控制变频器输出频率及辅助泵运行，进而调节供水压力，实现供水系统的恒压控制。本发明可以实现恒压供水控制，具有电路结构简单、可靠性高和实用性强特点。
Constant-pressure water supply system control circuit based on general frequency converter
一种基于通用变频器的恒压供水系统控制电路
LI FENGPING (author) / PENG ZHIHUI (author) / HUANG JIBAO (author) / ZHOU SIJIA (author) / GANG JIANHUA (author) / HUANG BO (author)
2024-04-05
Patent
Electronic Resource
Chinese
IPC:
E03B
Anlagen oder Verfahren zum Gewinnen, Sammeln oder Verteilen von Wasser
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INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
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