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Fault detection and reconstruction method for liquid level system of water-cooled cabinet

A system failure, water-cooling technology, applied in general control systems, control/regulation systems, liquid/fluid solids measurement, etc., can solve problems such as difficult implementation of engineering applications, and achieve the effect of facilitating writing and improving fault tolerance.

Pending Publication Date: 2021-01-05
中国船舶集团有限公司第七二四研究所
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Problems solved by technology

These detection and protection methods achieve fault detection and system protection through complex formulas and models, but are not easy to implement in engineering applications

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  • Fault detection and reconstruction method for liquid level system of water-cooled cabinet
  • Fault detection and reconstruction method for liquid level system of water-cooled cabinet
  • Fault detection and reconstruction method for liquid level system of water-cooled cabinet

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Embodiment Construction

[0014] The method of the present invention will be further illustrated below in conjunction with the accompanying drawings and embodiments.

[0015] The present invention proposes a method for fault detection and reconstruction of the liquid level system of a water-cooled cabinet, and the embodiment includes the following steps:

[0016] Step 1: According to the feedback signal h of the liquid level gauge, the pressure signal p, and the flow signal Q, the three signals comprehensively judge whether the liquid level gauge is faulty;

[0017] Step 2: When it is judged that the liquid level gauge is faulty, the control unit of the water-cooled cabinet receives a fault signal, and the system switches the signal of the liquid level gauge; if there is no fault, return to step 1 for real-time detection;

[0018] Step 3: Reconstruct the liquid level gauge signal according to the pressure signal in the system and the flow signal of the water inlet and outlet, and call it by the control...

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Abstract

The invention relates to a fault detection and reconstruction method for a liquid level system of a water-cooled cabinet, and the method comprises the steps: judging whether a liquid level meter has afault or not according to a feedback signal of the liquid level meter and feedback signals of other sensors, and analyzing whether the sensor is damaged or drifted on the basis of the fault; when itis detected that the liquid level meter breaks down, constructing a new liquid level meter signal through the pressure sensor and the flow sensor, thus guaranteeing that a water circulation system cancontinue to operate, and replacing the broken-down liquid level meter after equipment operation is finished.

Description

technical field [0001] The invention belongs to the technical field of fault detection and protection of water-cooled cabinets. Background technique [0002] Liquid level control systems are widely used in industrial production, such as industrial field liquid level measurement control, oil tank liquid level control, cooling system liquid level monitoring, drinking water and sewage treatment, etc. Its main sensor is a liquid level gauge, and generally in the industry, the fault detection of the sensor can only be found by manual maintenance. The liquid level gauge plays an important role in the system of the water-cooled cabinet. When the liquid level is too low, it cannot provide enough circulating water to cool the heating components, and the electric heating of the water tank will dry out. At the same time, the liquid level gauge is a sensor that is prone to failure. When it fails, the circulation system stops running. Therefore, when the liquid level gauge fails, it is...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00G05B23/02
CPCG05B23/0205G01F25/20
Inventor 朱鹏陈施华张伟
Owner 中国船舶集团有限公司第七二四研究所
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