A pump self-sealing water device

Abstract

The invention provides a self-sealing water device for a machine pump, which includes a machine pump body, a machine seal water inlet and a seal water pipeline. A cartridge type machine seal box is fixed on the right side of the machine pump body. An organic sealed water intake is arranged above, a heat exchanger is connected to the right side of the sealed water pipeline, a sealed water intake pipeline is installed above the heat exchanger, and an anti-corrosion coating is placed on the outer surface of the pump body. The machine pump self-sealing water device provided by the present invention is installed on the pump body through a packaged machine seal box. Heater, the heat exchanger uses circulating water for cooling and cooling, the water intake of the machine-sealed water is closed and isolated by a valve, and the sealing water is taken from the pump outlet pipeline check valve auxiliary line pipeline, and the sealing water enters The heat exchanger enters the assembly-type machine sealing box to seal the rotating bearing of the machine pump. The invention has simple structural design and is convenient to install and use.

Description

technical field [0001] The invention relates to the field of coal chemical industry and power generation production equipment, in particular to a pump self-sealing water device. Background technique [0002] According to the requirements of coal chemical industry and power generation process, the pulverized coal gasifier of Aerospace Furnace adopts the structure of closed coil water-cooled wall radiation chamber, and the boiler circulating water is pressurized and sent into the water-cooled wall coil of the gasifier through the medium-pressure boiler circulating water pump. It is divided into three parts, namely the slag mouth coil, the top coil and the main coil. The coil adopts a four-inlet and four-outlet structure to ensure uniform distribution of flow resistance in the tube side, maintain a large flow of forced water circulation in the water-cooled wall coil, and the water absorption furnace flowing in the tube After the internal gasification reaction heat is partially ...

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Problems solved by technology

[0005] The invention provides a self-sealing water device for machine pumps, which makes up for the deficiencies of the prior art, and solves the problem that the water does not flow during standby due to the unreasonable water intake of the machine seal water of the standby machine pump, which causes the machine seal to be damaged due to uneven heating, and the machine pump cannot The problem of normal standby and increased maintenance cost and maintenance risk

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