Steam condenser self-circulation spraying peak cooling system

Abstract

The invention provides a condenser self-circulation spray peak cooling system, comprising: a condenser, a self-circulation output pipeline, a cooler, a self-circulation input pipeline and a self-circulation spray device; the steam inlet of the condenser It is connected with the steam exhaust outlet of the steam turbine, and the condenser is provided with a throat, a condensation pipe and a hot well in sequence from top to bottom; the water inlet of the self-circulation output pipeline is connected with the first condensate outlet of the hot well, and the water outlet is connected with the The heat medium inlet of the cooler is connected; the water inlet of the self-circulation input pipeline is connected with the heat medium outlet of the cooler, and the water delivery port is connected with the spray liquid inlet of the self-circulation spray device; The throat of the device; among them, the condensed water sprayed from the spray port of the self-circulating spray device mixes with the exhaust steam of the steam turbine in the throat, absorbs heat and evaporates, and undergoes a phase change. The condenser self-circulation spray peak cooling system provided by the invention can effectively control the vacuum of the unit.

Description

technical field [0001] The invention belongs to the technical field of steam turbines, in particular, the invention relates to a condenser self-circulation spray peak cooling system. Background technique [0002] The condenser is a heat exchanger used to condense the exhaust steam of the steam turbine into water. In addition to condensing the exhaust steam of the steam turbine into water for reuse by the boiler, it can also establish and maintain a vacuum at the exhaust steam of the steam turbine. . Condensers are divided into water-cooled condensers (or wet-cooled units) and air-cooled condensers (or air-cooled units). From the perspective of economic benefits, water-cooled condensers are more commonly used. [0003] For water-cooled condensers, especially those located in southern China, when the temperature in southern China is high in summer, the cooling area of ​​the condenser is generally insufficient, the vacuum of the water-cooled condenser is low, and the heat cons...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a self-circulation spraying peak cooling system for the condenser, to at least solve the technical problem that the cooling area of ​​the condenser is generally insufficient when the temperature in the south is high in summer, and at the same time solve the problem of low vacuum and Technical issues with high heat rate

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