A calibration platform and calibration method for a liquid level monitoring system of a spent fuel pool
A spent fuel pool and liquid level monitoring technology, applied in the direction of liquid level indicator through pressure measurement, electric fluid pressure control, etc., can solve the problem of low calibration accuracy and achieve the effect of improving calibration accuracy
Active Publication Date: 2022-04-26
FUJIAN NINGDE NUCLEAR POWER
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Problems solved by technology
[0003] At present, the liquid level monitoring system of the spent fuel pool mainly adopts the manual calibration method, mainly by the staff to manually adjust the pressure in the liquid level gauge sleeve output from the gas source to the spent fuel pool liquid level monitoring system, so that the liquid level gauge sleeve The liquid level in the cylinder reaches the calibration point, so the calibration accuracy is not high
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[0068] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0069] The embodiment of the present invention discloses a calibration platform and calibration method for the liquid level monitoring system of the spent fuel pool, so as to realize the automatic calibration of the liquid level monitoring system of the spent fuel pool, so as to make up for the shortcomings of manual calibration and improve the calibration efficiency. test accuracy.
[0070] see figure 1 , a block diagram of a verification platform of a spent...
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The invention discloses a calibration platform and a calibration method for a liquid level monitoring system of a spent fuel pool. The calibration platform includes a pneumatic system and a PLC control system. The PLC control system includes a touch screen, a PLC controller and a pressure transmitter, and the PLC controller Connect with the pneumatic system, touch screen and pressure transmitter respectively. Based on the parameters required for calibration input from the touch screen, the PLC controller uses the pre-stored calibration method to check the gas pressure in the liquid level gauge sleeve collected by the pressure transmitter. Make logical judgments, and control the pneumatic system accordingly according to the judgment results and calibration requirements, so as to adjust the gas pressure in the liquid level gauge sleeve. Therefore, the present invention realizes the automatic calibration of the liquid level monitoring system of the spent fuel pool, thereby making up for the deficiency of manual calibration and improving the calibration accuracy.
Description
technical field [0001] The invention relates to the technical field of nuclear power generation, and more specifically, to a calibration platform and a calibration method for a liquid level monitoring system of a spent fuel pool. Background technique [0002] The liquid level monitoring system of the spent fuel pool is composed of an inner vertical pipe and an outer stainless steel casing, the upper end is sealed and has an air inlet port. Among them, the internal vertical pipe is equipped with a continuous liquid level monitoring sensor (referred to as MN), a point liquid level monitoring sensor (abbreviated as SN), a set of heating platinum resistance temperature measuring sensors (referred to as dynamic resistance) and a set of reference resistance temperature measuring sensors (referred to as dynamic resistance) referred to as the reference resistor). MN is installed within the full range of the spent fuel pool liquid level monitoring system, and SN is only installed at...
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IPC IPC(8): G05D16/20G01F23/14
Inventor 徐刚桂思玉吕明明陈昌贤高志远李晋闫建柱廖光宝
Owner FUJIAN NINGDE NUCLEAR POWER