Environment-friendly and energy-saving transformation method for public gas system of thermal power plant

Abstract

The invention discloses an environment-friendly and energy-saving transformation method for a public gas system of a thermal power plant. The environment-friendly and energy-saving transformation method comprises the following steps that 1, a gas source is selected, specifically, a three-stage centralized control instrument gas air compressor room closest to an existing ash silo instrument gas air compressor room is selected as a new gas source, and meanwhile two instrument air compressors in existing ash silo instrument air compressor room are closed, and 2, dismounting and mounting are carried out, specifically, the two instrument air compressors in the existing ash silo instrument air compressor machine room are dismounted, and a first air storage tank and a second air storage tank are mounted on an original site at the same time. The method is simple and easy to operate, energy can be effectively saved, the transformation cost is extremely low, the first gas storage tank and the second gas storage tank of gas for the centralized control instrument are adopted for replacing gas for an ash silo instrument, and the two 90 KW high-power air compressors for the ash warehouse instrument are stopped and dismantled to be used at other places, so that the operation cost and the maintenance cost are saved, and the safety risk caused by frequent faults of the two instrument air compressors is eliminated.

Description

technical field [0001] The invention belongs to the field of electric power industry, and in particular relates to an environmental protection and energy-saving modification method for a public gas system of a thermal power plant. Background technique [0002] The instrument gas system for the ash storage is a public system, responsible for the instrument gas for the following equipment in the ash storage system of the thermal power plant: gas for the control of the plug-in valve for dry ash loading, air for blowing of the bag filter in the ash storage, pneumatic injection of the pulping water The gas used for plate valve control, the gas used for controlling the pneumatic door of the feeder inlet, etc., the system is huge and important. If there is a problem with the gas system of the ash storage instrument, when it is impossible to perform various operations on the loading system and pulping system, the dry ash It will be temporarily stored in the ash storage. Calculated a...

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Problems solved by technology

[0003] The current situation of the gas system of the gray warehouse instrument is that due to the small gas consumption and frequent loading and unloading of the air compressor, the actual working utilization rate of the equipment is less than 10%, which means that 90% of the electricity is wasted. In addition, in order to ensure the backup air compressor The machine can be kept in standby at any time, and the industrial cooling water has to be kept in continuous operation. About 100,000 tons of industrial cooling water is wasted a year, resulting in a huge waste of energy. Therefore, it is urgent to optimize the current situation to achieve the purpose of saving energy and reducing consumption.

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