Direct air-cooling unit system with plate-type evaporative condenser unit adopted

Abstract

The invention discloses a direct air-cooling unit system with a plate-type evaporative condenser unit adopted. The direct air-cooling unit system comprises a low pressure cylinder, an air cooled condenser and the plate-type evaporative condenser unit, wherein an exhaust steam pipe is communicated with a dead steam inlet of the plate-type evaporative condenser unit through a pipeline to send part of dead steam discharged by a turbine to the plate-type evaporative condenser unit to be cooled, and a condensed water outlet of the air cooled condenser and a condensed water outlet of the plate-type evaporative condenser unit are both communicated with a condensed water tank arranged blow the lower pressure cylinder through pipelines. According to the direct air-cooling unit system with the plate-type evaporative condenser unit adopted, steam discharged by the turbine is introduced into the air condense to be condensed through the steal discharging pipeline connected with the lower pressure cylinder, a pipeline communicated with the dead steam inlet of the plate-type evaporative condenser unit is further arranged on the steal discharging pipeline to introduce part of the dead steam discharged by the turbine to the plate-type evaporative condenser unit to be condensed, so that the thermal load entering the air cooled condenser is reduced, and then steam discharging pressure of the turbine is reduced.

Description

technical field [0001] The invention belongs to the fields of thermal power engineering, thermal power plants, and direct air-cooling generator sets for improving output and saving energy and reducing consumption, and in particular relates to a direct air-cooling unit system using a plate-type evaporative condenser group. Background technique [0002] The direct air-cooled units that have been put into operation at present generally have problems such as low operating vacuum during high temperature periods in summer, decreased unit output, low operating economy, and high coal consumption for power generation. The measures taken at this stage are mainly to use peak cooling devices on the air-cooled island. [0003] There are two types of spike cooling devices: [0004] One is evaporative cooling, which sprays atomized desalted water directly on the surface of the heat exchanger, and uses water vaporization to absorb heat to reduce the surface temperature of the heat exchange...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the above problems and provide a direct air-cooled unit system using a plate-type evaporative condenser group, which can greatly improve the performance of the air-cooled condenser, reduce the back pressure of the unit operation, and achieve the purpose of saving energy and reducing consumption; At the same time, it reduces the water consumption of the unit for power generation, and eliminates the defects of high operating cost and difficult maintenance caused by the existing technology. The energy-saving cooling technology of the direct air cooling system

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