Tower type direct air cooled condenser and tower type direct dry cooling system thereof

Abstract

The invention discloses a tower type direct air cooled condenser and a tower type direct dry cooling system thereof. The tower type direct dry cooling system comprises a tower type direct air cooled condenser, wherein the tower type direct air cooled condenser is arranged on the lower part of a reinforced concrete dual-curve cooling tower; a plurality of condensing units are arranged annularly; steam distribution vertical pipes of the condensing units are connected with a volute-shaped steam distribution main pipe; gas collecting pipes of the condensing units are connected with a vacuum pumping pipeline; a cross-shaped wind insulating plate is arranged inside the reinforced concrete dual-curve cooling tower; a reinforced concrete sloping plate is arranged on a cooling tower annular beam above the tower type direct dry cooled condenser; both sides of collecting pipes are provided with two hooks respectively; a glass fiber reinforced plastic wind blocking plate is movably arranged between two collecting pipes through the hooks; and triangular oblique cover plates are arranged on two rows of pipe bundles of adjacent condensing units. The tower type direct dry cooling system has the advantages of simple structure, running flexibility, low initial investment, small quantity of heat exchange times and high efficiency, the energy consumption and noise of an ACC (Air Cooled Condenser) system fan are eliminated, and the sensitivity to the wind direction is lowered.

Description

technical field [0001] The invention belongs to the technical field of turning exhaust steam into condensed water through dry cooling of exhaust steam in thermal (nuclear) power plants, and in particular relates to a tower-type direct air-cooling condenser and a tower-type direct dry cooling system. Background technique [0002] For every kilowatt-hour of electricity generated by thermal power generation, dry cooling (commonly known as air cooling) is used, which saves 2.5kg of water compared with wet cooling. The classic dry cooling system is the three systems of mixed room, table room and direct cooling in the table below. The remaining six cooling systems in the table below are derived from the classic three systems. [0003] [0004] Developed countries have changed the name of air cooling system to dry cooling system. At present, China has not yet standardized the terminology of dry cooling, with many ambiguities and insufficient rigor. For power station cooling, h...

AI Technical Summary

Problems solved by technology

In October 1995, the German GEA Company equipped a 200MW unit of Xinjiang Hongyanchi No. 2 Power Plant with a preliminary design of a dry cooling tower: the overall height of the tower is H115m, the diameter of the bottom of the tower is D127m, the height of the air inlet is h14m, and the air-cooled condenser is inside the tower It is still arranged horizontally in the shape of a roof, and shutters are added at the lower part, but it has not yet entered the stage of practical application.

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