Display control system of water pump and pump group

Abstract

The invention discloses a display control system of a water pump and a pump group. The display control system is characterized by comprising a sensor group, a touch control display screen, a data bus interface, and a water pump frequency converter, wherein the sensor group and the touch display screen are connected with a control unit respectively, and the data bus interface is communicated with a host computer. The sensor group is provided with a water pump outlet pressure sensor arranged at an outlet of the water pump, a water pump inlet pressure sensor arranged at an inlet of the water pump, a water pump running current sensor arranged on water pump drive current, and a water pump running voltage sensor arranged on water pump drive voltage. The touch control display screen is provided with a manual control module, a data input module, a water pump state parameter display module, a network state parameter display module, a water pump alarm module, and a data storage module, wherein the manual control module and the data input module are connected with a signal input end of a data processing unit, and the water pump state parameter display module, the network state parameter display module, the water pump alarm module, and the data storage module are connected with a signal output end of the data processing unit. The invention has the advantages of high test precision, convenient control, overall parameter display, real-time display function, friendly and visual interface, low cost, and high degree of automatization.

Description

technical field [0001] The invention relates to a monitoring control of water pump operation. In particular, it relates to a display control system of a water pump and a pump group capable of realizing on-line monitoring control and real-time display of characteristic parameters of the water pump. Background technique [0002] At present, the main purpose of monitoring the operation of water pumps is only for safe operation. The monitoring parameters usually only include operating current, voltage, frequency and pressure difference between inlet and outlet. The above parameters are obtained by field readings of ammeter, voltmeter and pressure gauge respectively. The parameters that reflect the actual operating status of the pump mainly include flow, head and power. The flow is mainly obtained through ultrasonic flowmeter testing, but the flowmeter is expensive, the test method is cumbersome, and it is difficult to realize real-time monitoring of the pump flow, which has grea...

AI Technical Summary

Problems solved by technology

The parameters that reflect the actual operating status of the pump mainly include flow, head and power. The flow is mainly obtained through ultrasonic flowmeter testing, but the flowmeter is expensive, the test method is cumbersome, and it is difficult to realize real-time monitoring of the pump flow, which has great limitations; The head is obtained by making the difference between the test values ​​of the pressure gauges before and after the pump. Due to the low accuracy of the pressure gauge, there is a large error in the reading of the head; the power is solved by using the test data of the voltage and ammeter and related theoretical formulas. There is a large error in the calculation data of the power

In summary, the existing monitoring data cannot accurately reflect the operating status of the pump

[0003] Without the support of more accurate, comprehensive, and real-time operating data, variable flow adjustment of water pumps will become very difficult, resulting in most variable flow systems operating under constant flow conditions, which in turn leads to energy consumption in pump transmission and distribution. high

The main reason for the current situation is the lack of scientific and accurate online monitoring control and real-time display methods of pump characteristic parameters

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