Liquid level measurement and control training system and operation method thereof

A technology of liquid level detection and liquid level, which is applied in the field of liquid level measurement and control training system, can solve problems such as difficulty in following up the development of professional technology, single structure, and few functions, and achieve easy understanding and acceptance, strong expandability, and training Improved effect

Inactive Publication Date: 2011-07-20
WUXI VOCATIONAL & TECHN COLLEGE +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the general-purpose training equipment has a single item and content, few functions, insufficient expandability, and it is difficult to follow up with the development of professional technology; it is quite different from the actual work process of the enterprise, which affects the training effect of students' professional ability during school

Method used

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  • Liquid level measurement and control training system and operation method thereof
  • Liquid level measurement and control training system and operation method thereof
  • Liquid level measurement and control training system and operation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1. Liquid level open-loop control mode controlled by switching value

[0037] The operation steps include:

[0038]Step 1: Determine that the training content is the liquid level open-loop control mode of switch value control.

[0039] Step 2: The main hardware of the electrical system used in the liquid level open-loop control mode controlled by the switch includes the control button 39, the AC contactor 30, the water pump motor 5, the programmable logic controller PLC 31, the air switch 27 and the drainage solenoid valve 6, etc. .

[0040] Step 3: Set up a program on the programmable controller PLC31 to read the position information of the upper liquid level detection sensor 20 , the middle liquid level detection sensor 21 and the lower liquid level detection sensor 22 .

[0041] Step 4: Close the air switch 27, turn on the power supply, and the power indicator light 28 lights up. Run the program, press the start button in the control button 39, the whol...

Embodiment 2

[0045] Embodiment 2. Liquid level closed-loop control mode controlled by analog quantity

[0046] The operation steps include:

[0047] Step 1: Determine that the training content is the liquid level closed-loop control mode of analog quantity control.

[0048] Step 2: The main hardware of the electrical system used in the liquid level closed-loop control mode of analog quantity control includes control buttons 39, AC contactor 30, water pump motor 5, programmable logic controller PLC31, analog-to-digital converter ADC32, and digital-to-analog converter DAC33, touch screen 36, frequency converter 35, pressure sensor 19, drain solenoid valve 6, etc. Set the operating parameters of the inverter 35, and the frequency of the inverter 35 adopts the analog given mode.

[0049] Step 3: Set the program on the programmable logic controller PLC31, and set the target liquid level value, the upper limit liquid level value and the lower limit liquid level value on the touch screen 36 res...

Embodiment 3

[0054] Embodiment 3. Liquid level closed-loop control mode of communication control

[0055] The operation steps include:

[0056] Step 1: Determine that the training content is the liquid level closed-loop control mode of communication control.

[0057] Step 2: The main hardware of the electrical system used in the liquid level closed-loop control mode of communication control includes AC contactor 30, water pump motor 5, programmable logic controller PLC 31, touch screen 36, frequency converter 35, ultrasonic positioning probe 23, and intelligent control module MCU34, communication cable and drain solenoid valve 6, etc.

[0058] The operating parameters and communication protocol parameters of the frequency converter 35 are set, and the output frequency of the frequency converter 35 adopts a communication given mode.

[0059] Step 3: Set the programmable controller PLC31 program, and set the target liquid level value, the upper limit liquid level value, and the lower limit...

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Abstract

The invention relates to a training system and an operation method thereof, in particular to a liquid level measurement and control training system and an operation method thereof. The liquid level measurement and control training system comprises a liquid level measurement and control training device and a control panel, wherein the liquid level measurement and control training device comprises a base plate, a main support, a water storage tank, a controlled water tank, a water pump motor, a drainage solenoid valve, a manual water inlet valve, a manual drainage valve, a water inlet of the water storage tank, a water outlet of the water storage tank, a flooding pipe, a water inlet pipe, a water outlet pipe, an air vent, a water inlet of the controlled water tank, a water outlet of the controlled water tank, a liquid level follower plate, a floating shaft, a pressure sensor, an upper liquid level detection sensor, a middle liquid level detection sensor, a lower liquid level detection sensor, an ultrasonic locating probe and a line access control cabinet. The operation method comprises the following steps of: determining training content according to teaching requirements; selecting a corresponding control module to complete wire connection among the training devices; selecting a liquid level detection device to complete line connection; switching on an air switch for power on so as to complete system debugging; and starting a training process.

Description

technical field [0001] The present invention relates to a training system and its operating method, in particular to a liquid level measurement and control training system and its operating method. Background technique [0002] In modern vocational education, some general-purpose training equipment is usually used to conduct skill training and assessment for students, so that students can master the professional skills required for this major in practical training close to the factory environment, and provide excellent skilled talents for enterprises . However, the general-purpose training equipment has a single item and content, few functions, insufficient expandability, and it is difficult to follow up with the development of professional technology; it is quite different from the actual work process of the enterprise, which affects the training effect of students' professional ability during school. Contents of the invention [0003] The object of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B25/02
Inventor 韩东起姚晓宁单正娅
Owner WUXI VOCATIONAL & TECHN COLLEGE
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