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Automatic measuring device and method for flash point of insulating oil special for electric power

A technology for measuring device and insulating oil, applied in the direction of material flash point, etc., can solve the problems of fire danger, pollution of workers, physical injury, etc., and achieve the effect of avoiding environmental pollution problems, high degree of automation, and high sensitivity

Inactive Publication Date: 2015-04-22
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of this traditional method: the experimental site needs to be airtight to avoid air flow interference; the test generates polluting gas, causing indoor pollution and physical injury to the staff; the experiment requires open flames, and fire hazards often occur

Method used

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  • Automatic measuring device and method for flash point of insulating oil special for electric power
  • Automatic measuring device and method for flash point of insulating oil special for electric power

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Embodiment Construction

[0020] The implementation of the present invention will be described in further detail below. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0021] An automatic measuring device for the flash point of insulating oil specially used for electric power, such as figure 1 As shown, it includes a concave heating groove 1 connected to the control host 11, a test sealing oil cup 3 is placed in the concave heating groove, and an oil cup cover 2 is screwed on the upper opening of the testing sealing oil cup through a screw thread 10. A platinum resistance thermometer 4 connected to the control host, a stirring rod 6 with a motor 5 installed on the top, a pressure sensor 7 connected to the control host, and a combustion exhaust pipe 8 are respectively inserted through holes on the oil cup cover. It is connected with the control host, the combustion exhaust pipe is equipped with a solenoid valve 9 connected w...

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Abstract

The invention relates to an automatic measuring device for the flash point of insulating oil special for electric power. The device comprises a concave heating groove connected with a control main machine, a sealing oil cup in the concave heating groove, and an oil cup cover on the sealing oil cup, wherein the oil cup cover is provided with a platinum resistance thermometer, a stirring rod, a pressure sensor and a burning exhaust pipe through holes in an inserting mode, the top end of the stirring rod is provided with a motor, the bottom end of the stirring rod is provided with blades, the pressure sensor is connected with the control main machine, and the burning exhaust pipe is provided with a solenoid valve. A determining method for the flash point comprises the steps that (1) a pressure and temperature change relationship of each standard substance is built in the control main machine; (2) a work standard curve of the flash points and the pressure relationship is built according to the known flash points of the standard substances; (3) the device is started to heat a tested oil product; (4), the flash point temperature of the tested oil product is determined. The device and method are high in detection sensitivity, high in degree of automation, free of open fire, safe, reliable and capable of avoiding the problem of environmental pollution in the experiment process.

Description

technical field [0001] The invention belongs to the technical field of flash point detection of insulating oil or transformer oil in the electric power industry, in particular to a device and method for automatically measuring the flash point of insulating oil special for electric power. Background technique [0002] The traditional method for testing the flash point of insulating oil is to add a certain volume of oil to a metal beaker, heat it at a constant speed, and ignite the oil with a flame. The temperature of the oil when it burns is the flash point. Disadvantages of this traditional method: the experimental site needs to be airtight to avoid air flow interference; the test generates polluted gas, causing indoor pollution and physical injury to the staff; the experiment requires open flames, and fire hazards often occur. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a kind of aut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/52
Inventor 卢立秋郭军科卢修春刘鸿芳于金山苏展郝春艳其他发明人请求不公开姓名
Owner STATE GRID CORP OF CHINA
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