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A thermal power station water circulation pipeline instrument test device

A technology of water circulation pipe and test device, applied in the direction of instruments, etc., can solve the problems affecting the production and safety of thermal power plants.

Active Publication Date: 2019-05-10
ZHEJIANG UNIV KUNSHAN INNOVATION INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Instruments such as liquid level switches, differential pressure sensors, liquid level indicators, electric control valves, and pneumatic control valves are commonly used in the water circulation piping system of thermal power plants. Field tests and operations of such instruments will affect the production and safety of thermal power plants.

Method used

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  • A thermal power station water circulation pipeline instrument test device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] When the electric regulating valve 5 is closed, the manual valves 7, 14, 16 are closed, and the manual valves 6, 8, 9, 11, 12, 13, 15 are opened, the fluid in the source water tank 1 passes through the manual valve 8 and the check valve 19 in sequence , the manual valve 9 reaches the water pump, after being pressurized by the water pump, it passes through the orifice flowmeter, and then passes through the manual valve 123 to reach the inlet of the pneumatic three-way regulating valve 3. The fluid is divided into two paths after passing through the pneumatic three-way valve 3, one path enters the source water tank 1 through the manual valve 6V-04, and the other path enters the test water tank 2 through the manual valve 15. Through the operation of the pneumatic three-way regulating valve 3, the flow control of the water inlet pipeline of the source water tank and the test water tank can be realized, and at the same time, the liquid level switches 22, 23, 24, 25 of the sou...

Embodiment 2

[0035]When the manual valves 7 and 8 are closed and the manual valves 6, 9, 11, 12, 13, 14, 15, and 16 are opened, the fluid in the test tank 2 passes through the manual valve 16, the pneumatic regulating valve 4, the manual valve 10, the electric regulating valve Valve 5 and manual valve 9 reach the water pump. After being pressurized by the water pump, they pass through the orifice flowmeter and then through the manual valve 12 to reach the inlet of the pneumatic three-way regulating valve 3. The fluid is divided into two paths after passing through the pneumatic three-way valve 3, one path enters the source water tank through the manual valve 6, and the other path enters the test water tank through the manual valve 15. Through the operation of the pneumatic three-way regulating valve 3, the flow control of the water inlet pipeline of the source water tank and the test water tank can be realized; through the operation of the pneumatic regulating valve 4, the control of the dr...

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Abstract

The invention discloses a thermal power station water circulation pipeline instrument test device, which comprises a source water tank, a test water tank, a pipeline system and a water pump, wherein the source water tank comprises a liquid level switch, an exhaust port / feed port and a source water tank drainage port and is connected with the test water tank via the pipeline system for realizing water output and backflow functions; the test water tank comprises a differential pressure sensor, a liquid level indicator and a test water tank drainage port and is connected with the source water tank via the pipeline system for realizing water inlet and drainage functions; the pipeline system is connected with the source water tank and the test water tank and comprises a pipeline, a pneumatic three-way regulating valve, a pneumatic regulating valve, an electric regulating value, a manual valve, a differential pressure sensor and the like for realizing switching among different water circulation lines between the source water tank and the test water tank. A detection test device is provided for detection on the thermal power station water circulation pipeline instrument, commonly-used thermal power station water circulation pipeline instrument functions can be tested and verified in an independent system and in a safety condition, the device can also serve as a training device for an employee, and the employee can be guided to be familiar with the power station water circulation system pipeline switching operation and the instrument function use.

Description

technical field [0001] The invention belongs to the technical field of pipeline instruments, and in particular relates to a test device for water circulation pipeline instruments of a thermal power station. Background technique [0002] Instruments such as liquid level switches, differential pressure sensors, liquid level indicators, electric control valves, and pneumatic control valves are commonly used in the water circulation piping system of thermal power plants. Field tests and operations of such instruments will affect the production and safety of thermal power plants. . In order to test and verify the functions of such instruments and meters, and at the same time guide thermal power station employees to be familiar with the pipeline switching operation of the water circulation system and the principles, functions and operation methods of common instruments, the present invention provides an independent and safe test device. Contents of the invention [0003] In ord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D18/00
CPCG01D18/00
Inventor 曾双龙葛俊旭茅旭飞
Owner ZHEJIANG UNIV KUNSHAN INNOVATION INST