This paper introduces a method of using vacuum pump set in power plant. For steam turbine, vacuum has a direct impact on its operation economy. High vacuum, low exhaust steam pressure, low effective enthalpy, less heat taken away by circulating water, high efficiency of the unit. When the air leaks into the condenser, the vacuum degree decreases, the effective enthalpy decreases, and the heat taken away by the circulating water increases.
Therefore, the vacuum pump unit is an important part of the turbine, its sealing directly affects the economy and safety of the whole equipment operation. Therefore, the national electric power industry standard puts forward strict requirements for the vacuum pump unit. However, due to design, installation, operation and maintenance, many power plants have low vacuum during operation. The tightness of vacuum pump unit is reduced, which will also cause the deformation and vibration of exhaust cylinder. Air entering the condenser will also lead to unqualified oxygen content of condensate and corrosion of boiler and steam turbine equipment. In order to solve the above technical problems, a vacuum pump unit is set up in the power plant to increase the power generation, effectively reduce the coal consumption of the unit, achieve the effect of energy conservation and emission reduction, ensure the economic and safe operation of the unit, and ensure the leakage point after treatment, and strictly improve.
The vacuum pump unit is equipped with three 50% capacity water ring mechanical vacuum pumps to establish a certain degree of vacuum for the cylinder and condenser during startup, and continuously discharge the non condensing gas turbine in the steam pump unit to maintain the condensing water during normal operation.
Vacuum Conveying Equipment
Vacuum Suction Pneumatic Conveying System
Water Ring Vacuum Pump
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