Variable frequency control dynamic liquid level experiment equipment

Abstract

The invention discloses variable frequency control dynamic liquid level experiment equipment, which comprises a constant pressure water box, a constant pressure tank device, a first submersible pump, a water pressure detecting device, a PLC (programmable logic controller) variable frequency control circuit, a constant temperature water box, a constant temperature tank device, a second submersible pump and a constant temperature heating device, wherein the water pressure detecting device is used for detecting the water pressure in the constant pressure tank device, the PLC variable frequency control circuit utilizes PID (proportion integration differentiation) algorithmic program for controlling the first submersible pump, the constant temperature heating device is used for the constant temperature heating of water in the constant water box, the first submersible pump is arranged inside the constant water box, the constant pressure tank device comprises a constant pressure tank, a first water inlet pipe, a first water outlet pipe, a first water flow feedback pipe and a first water valve, the head ends of the first water inlet pipe, the first water outlet pipe, the first water flow feedback pipe and the first water valve are communicated with the constant pressure tank, the constant temperature tank device comprises a constant temperature tank, a second water inlet pipe and a second water outlet pipe, the head ends of the second water inlet pipe and the second water outlet pipe are communicated with the constant temperature tank, and the water pressure detecting device is connected with the PLC variable frequency control circuit. The variable frequency control dynamic liquid level experiment equipment has the advantages that the structure is simple, constant temperature water supply control knowledge and constant pressure water supply control knowledge based on the PID algorithm can be effectively imparted to students.

Description

technical field [0001] The invention relates to process control experiment equipment, in particular to a frequency conversion control dynamic liquid level experiment equipment. Background technique [0002] At present, liquid level control and temperature control have been widely used in the field of industrial automatic control, such as constant pressure water supply control, constant temperature water supply control, etc. [0003] Among them, the equipment that can realize constant pressure water supply control generally uses the PID algorithm program, but the structure of these equipment is often very complicated. In the field of teaching, in order to teach students the knowledge of constant pressure water supply control based on PID algorithm, if these devices are used as industrial automatic control training equipment, the resource allocation cost of schools and training institutions will definitely increase. [0004] Moreover, to achieve different industrial automatic...

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Problems solved by technology

[0004] Moreover, to achieve different industrial automatic control needs to use different equipment, in order to teach students the knowledge of constant temperature water supply control, schools and training institutions also need to be equipped with equipment that can realize constant temperature water supply control as industrial automatic control training equipment, which further Increased resource allocation costs for schools and training institutions

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