Integrated type power plant indirect air cooling tower

Abstract

The invention discloses an integrated type power plant indirect air cooling tower. The integrated type power plant indirect air cooling tower comprises a tower cylinder, a flue gas denitrification device, a flue gas waste heat exchange device, a heat exchange device and a steam turbine power device, wherein a gas inlet and a gas outlet are formed in the tower cylinder, at least a set of flue gas treatment system is arranged in the tower cylinder, each flue gas treatment system comprises a desulfurizing absorption tower, a clean flue gas water extraction device, a dust removal device and a chimney, which are sequentially arranged from the gas inlet to the gas outlet and communicate with one another through a pipeline, the flue gas denitrification device and the flue gas waste heat exchange device are arranged between a boiler furnace and the gas inlet, the heat exchange device is arranged outside the tower cylinder, the heat exchange device is distributed in the circumferential direction of the tower cylinder and extended in the height direction of the tower cylinder, the heat exchange device comprises a water inlet pipe and a water outlet pipe, a lift pump is arranged on the water inlet pipe or the water outlet pipe, the steam turbine power device comprises a steam condenser, and an inlet end and an outlet end of the steam condenser communicate with the heat exchange device respectively through the water inlet pipe and the water outlet pipe so as to form a circulating pipeline. The integrated type power plant indirect air cooling tower is low in construction cost and good in use performance.

Description

technical field [0001] The invention relates to the technical field of ventilation cooling towers in thermal power plants, and more specifically, relates to an integrated indirect air cooling tower for power plants. Background technique [0002] The thermal power generating set is an important equipment of the thermal power plant. The thermal power generation unit is a unit that uses coal as fuel to heat the water in the boiler to increase its temperature, and then uses a certain pressure of steam to drive the steam turbine to generate electricity. Air cooling is currently the most widely used circulating cooling method for steam turbines. The indirect air cooling tower used for cooling the end of the thermal power plant unit has a stronger ability to resist high temperature environments and strong winds, and has stronger adaptability. [0003] For units above 1000MW, the flue gas treatment capacity is large, and the types and contents of pollutants are large, which puts fo...

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Problems solved by technology

If the processing capacity of the heat exchanger is increased by increasing the number of heat exchangers along the circumference of the air-cooling tower, the radial dimension of the air-cooling tower will be greatly increased, the civil construction investment of the air-cooling tower will be increased, and the height and diameter of the air-cooling tower will be reduced. ratio, which reduces the economy of the cost; if the heat exchanger’s processing capacity is increased by increasing the height of the heat exchanger, the flow velocity and water side resistance inside the heat exchanger will be limited by the height of the heat exchanger and the diameter of the pipe. Entering the rapid growth range, the head and power consumption of circulating water pumps will increase significantly

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