Steam cooling system cooling water pump cooling way

Steam cooling system is widely adopted in modern energy-saving projects a device, the device is composed of reduction of warm water atomization device with two major part is combined evaporation unit, through the desuperheating water water pump spray nozzle to reduce water pressure atomization, scattered in the high temperature steam steam flow, combined evaporation unit for further atomized water reduction mandatory rotation, shear, and the vaporization is endothermic vaporization on the surface of the cell, significantly strengthened the vaporization process, to achieve the high temperature steam cooling.

the basic way of desuperheating water pump steam cooling

desuperheating process refers to the superheated steam temperature to the saturation state, or reduce the degree of superheat steam. Most attemperator is designed to make the steam temperature is close to saturation temperature ( Typical of the minimum value is higher than the saturation temperature 3 ℃) 。 If you want to discharge temperature of the attemperator over saturation temperature 3 ℃ above are possible, and is often used. Cooling water water pump steam cooling there are two kinds of the most basic form of attemperator:

1, non-contact - Cooling steam medium are cooled do not directly answer the salmon. Low temperature of the liquid, gas can be used as cooling medium, such as air. This type of attemperator such as shell and tube heat exchanger. The side of the superheated steam into the heat exchanger, the other side of the cooling medium into the heat exchanger. When the superheated steam through the heat exchanger, heat from superheated steam is passed to the cooling medium.

by regulating the import of superheated steam flow or the flow of cooling medium for the export of superheated steam temperature control. And usually regulate the import of superheated steam flow of the operability is poor, so most system can regulate the flow of cooling medium.

2, direct contact - Cooling medium of superheated steam and superheated steam directly contact. Usually cooling medium and superheated gases for the same kind of material, but in a liquid. Attemperator often use water to steam. A typical direct contact cooling devices such as tong 15. 1. 3.

attemperator work, will be a certain amount of water by mixing device attemperator desuperheating water water pump in the superheated steam, when water enters the attemperator, it absorbs the heat and evaporation of superheated steam, such a superheated steam temperature decreases. To join the water flow control by measuring the attemperator downstream of the steam temperature. The temperature of the cooling steam is usually set to higher than the saturation temperature 3 ℃. In this arrangement, the attemperator of steam inlet pressure should be kept constant.

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