Unlock instant, AI-driven research and patent intelligence for your innovation.

Pressure relief valve opening time verification device and verification method

A technology for opening time and calibrating devices, which is applied in the testing of measuring devices, instruments, and mechanical parts, etc., to achieve the effects of high efficiency, high calibrating accuracy, and low labor intensity

Inactive Publication Date: 2020-06-09
ZHENGZHOU SAIL ELECTRONICS
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a device for checking the opening time of a pressure relief valve to solve the disadvantages of using the method of igniting hydrogen instantaneous explosion in the checking

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pressure relief valve opening time verification device and verification method
  • Pressure relief valve opening time verification device and verification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0033] Embodiment of the pressure release valve opening time verification device of the present invention:

[0034] like Figure 1-Figure 2 As shown, the device for checking the opening time of the pressure relief valve includes a bench 10, a gas generating device 1, a test tank 14, a pressing device 5 and a single-chip controller. The gas generating device 1 and the test tank 14 are all arranged on the platform 10, the platform 10 is movable, and the lower part of the platform 10 is provided with casters 11.

[0035] The principle of the gas generating device 1 is the prior art. The gas generating device can output high temperature and high pressure gas. The gas generating device 1 is provided with a pressure sensor 2 and a temperature sensor 3 .

[0036] The output port of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a pressure relief valve opening time verification device and verification method, the pressure relief valve opening time verification device comprises a rack, a gas generationdevice, a test tank, a pressing device and a single-chip microcomputer controller, the gas generation device can output a high-temperature and high-pressure gas, and the gas generation device is provided with a pressure sensor and a temperature sensor, wherein an output port of the test tank gas generation device is connected with a gas inlet of the test tank through a pipeline, the pipeline is provided with a throttle governing valve and a valve for controlling on-off of a gas, the test tank is provided with a gas outlet used for being in butt joint with a pressure relief valve to be tested,and the pressing device presses the pressure relief valve after the test tank is in butt joint with the pressure relief valve; a displacement sensor is used for detecting the displacement of a membrane disc in the pressure release valve. According to the pressure relief valve opening time verification device, the safety of the verification process, the operation feasibility and the accuracy of the verification result can be improved.

Description

technical field [0001] The invention relates to the field of calibration devices for pressure relief valves used in transformers, in particular to a calibration device and calibration method for the opening time of a pressure relief valve. Background technique [0002] In order to ensure the safe operation of the power grid and prevent major power accidents, many large transformers are equipped with pressure relief valve pressure relief devices. When a transformer fails to generate high temperature and high pressure, a large amount of mixed gas generated in the transformer will cause the pressure to rise rapidly, and the gas volume will expand instantaneously. If the pressure relief valve cannot be opened quickly to release the high pressure in the cavity, it will cause serious deformation of the transformer cavity, and the transformer will intensify. The failure rate in turn leads to greater safety accidents, causing joint safety hazards to surrounding power equipment. [...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00G01M3/02
CPCG01M13/00G01M3/02
Inventor 彭晓帆孙晓全张宇峰王照英李东辉张峰
Owner ZHENGZHOU SAIL ELECTRONICS