Instrument inspection system

A technology for inspection systems and instruments, which is applied in the field of instrument inspection systems, can solve problems such as abnormal misjudgment of the control system, troublesome operation of the valve cooling system, safety, stability, and reliable operation, and long detection time, and achieve the effect of improving the efficiency of calibration

Pending Publication Date: 2022-02-08
DALI BUREAU OF ULTRA HIGH VOLTAGE TRANSMISSION CO CHINA SOUTHERN POWER GRID CO LTD
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Problems solved by technology

At present, some engineering instrumentation sensors in China have misjudgment and abnormality of the control system due to measurement errors, resulting in refusal to operate, malfunctioning or leading to DC blocking accidents.
If the instrumentation of the valve cooling system is not regularly inspected, it will cause trouble to the safe, stable and reliable operation of the valve cooling system, and even affect the normal operation of the DC converter station
[0003] At present, to detect the sensors and instruments of the valve cooling system of the converter station, the sensors and instruments need to be disassembled and returned to the factory for testing in turn. However, due to the long time-consuming laboratory testing, the detection efficiency is low

Method used

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Embodiment Construction

[0022] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0024] It can be understood that the terms "first", "second" and the like used in this application may be...

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Abstract

The invention relates to an instrument inspection system. According to the instrument inspection system, the to-be-detected conductivity sensor and the standard conductivity sensor are arranged at the positions with the same conductivity in the closed loop, detection data of the to-be-detected conductivity sensor and detection data of the standard conductivity sensor are compared through the control device, and therefore whether errors exist in measurement of the to-be-detected conductivity sensor or not is judged; the purpose of testing the to-be-detected conductivity sensor is achieved. Through the instrument inspection system, the to-be-detected conductivity sensor does not need to be returned to a factory, inspection can be realized on site, and the inspection efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of instrument inspection, in particular to an instrument inspection system. Background technique [0002] The valve cooling system is an important auxiliary equipment of the (extra) high-voltage direct current transmission converter station. According to the function, it can be divided into two types: the valve cooling protection instrument and the valve cooling monitoring instrument. The measured physical quantities include: pressure, pressure difference, temperature, flow, Liquid level and conductivity, these sensors are an effective guarantee to realize the safe and reliable control and stable operation of the converter valve cooling system. At present, some engineering instrumentation sensors in China have misjudgment and abnormality of the control system due to measurement errors, resulting in refusal to operate, malfunctioning or leading to DC blocking accidents. If the instrumentation of the valve co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D18/00
CPCG01D18/00
Inventor 李阳郭纯海李强田松丰雷鸣东刘志强徐宏争薛佳琦
Owner DALI BUREAU OF ULTRA HIGH VOLTAGE TRANSMISSION CO CHINA SOUTHERN POWER GRID CO LTD
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