Checking method to prevent failure of thermal protection system for thermal power generating units

Abstract

The invention belongs to the technical field of automatic control of thermal generator sets, and particularly relates to a checking method for preventing failure of a thermal process protection system of a thermal generator set. The thermal process protection system comprises the following elements: design of the logic of a main protection system of the set, design of an important auxiliary engine protection system of the set, measuring and sampling by an instrument, and allocation of DCS hardware addresses; the inspection method comprises the following steps: collecting the design data of the thermal process protection system, and knowing the composition condition, the operation mode and the operation parameters of the thermal process protection system of the thermal generator set; checking the thermal process protection system of the thermal generator set by referencing to the latest national electric power industry regulations and specifications, and finding design defects and potential safety hazards; proposing a regulating solution for on-site regulation, finishing a static test and a dynamic test, and putting the thermal generator set into safe operation; and if the requirements are not met, returning to the regulation and test steps till meeting the requirement. The checking method has the advantages that the checking steps are simple and clear, the safety and the reliability are realized, the on-site debugging process is simple, and the operation and the implementation are convenient.

Description

technical field [0001] The invention belongs to the technical field of automatic control of thermal power generating sets, and in particular relates to a check method for preventing failure of thermal protection systems of thermal power generating sets. It can be used to check the design defects and potential safety hazards of the thermal protection system of thermal power generating units, and improve the ability of the thermal protection system of the unit to prevent rejection and malfunction. Background technique [0002] The thermal protection system of the unit is a very important and indispensable part of the thermal power plant, and plays a very important role in improving the reliability and safety of the main and auxiliary equipment of the unit. When some faults that may cause serious consequences occur to the unit, corresponding measures should be taken in time to protect them, so as to soften the faults, stop the machine for repair, and avoid major equipment damag...

AI Technical Summary

Problems solved by technology

The design of many long-term service units must not fully meet the relevant regulations of the latest power industry regulations. Due to unfavorable reasons such as the compression of the production and construction period during the infrastructure construction period, the newly-built units indirectly affect their design level and commissioning quality, resulting in failure of the thermal protection system. Reduced reliability

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