Circulating system for power plant

Abstract

The invention discloses a circulating system for a power plant, and relates to the technical field of equipment for the power plant. The gas-liquid separation device comprises a tank body, and a gas outlet, a gas-water mixed inlet and a working liquid outlet are formed in the tank body; the centrifugal vacuum jet pump comprises a pump body, and an air inlet, an air-water outlet and a water inlet are formed in the pump body; the gas outlet is used for discharging the separated gas to the outside; the gas inlet is used for receiving power plant vacuum system leakage gas; the gas-water mixing inlet is communicated with the gas-water outlet through a gas-water mixing pipe and is used for receiving a gas-water mixture from the pump body; and the working liquid outlet is communicated with the water inlet through a water pipe and is used for discharging separated water into the pump body. Through the arrangement of the circulating system for the power plant, the jet pump and the gas-liquid separator are combined, the circulating effect is achieved, and resource waste is reduced, specifically, water is circulated between the jet pump and the gas-liquid separator, consumption of water resources is reduced, and the energy-saving effect is achieved.

Description

technical field [0001] The invention relates to the technical field of equipment for power plants, in particular to a circulation system for power plants. Background technique [0002] In chemical, pharmaceutical, food, machinery, exploration, electric power, electronic production and other engineering fields, vacuum pumps are widely used to form a vacuum or pressure in a closed container or system, and part of the gas-liquid mixture is separated by a gas-liquid separator. The product needs to be refluxed and recycled. For example, in a liquid ring vacuum pump system, the liquid-liquid phase separation product can enter the vacuum pump body and be used as a supplementary liquid for the vacuum pump liquid ring only after being cooled by a heat exchanger. [0003] The jet pump is a kind of fluid machinery and mixed reaction equipment that uses the shearing and turbulent diffusion of the jet to transfer mass and energy. It has the advantages of simple structure, reliable operat...

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Problems solved by technology

[0004] When the jet pump is working, it needs to continuously introduce water flow and leak gas from the vacuum system of the power plant to form a gas-water mixture. Therefore, it is necessary to set up a reservoir to meet the working needs of the jet pump. However, in the working environment of the power plant, a reservoir cannot be set to meet The demand for jet pumps; when the gas-liquid separator is working, it needs to continuously supply the gas-water mixture, and produce water and gas, and the produced water is directly discharged, resulting in a waste of resources;

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