Containment built-in efficient heat exchanger adopting double-wheel double-blade hybrid power air suction

Abstract

The invention provides a containment built-in efficient heat exchanger adopting double-wheel double-blade hybrid power air suction, which mainly comprises a heat exchanger inlet header, a heat exchange tube, a heat exchanger outlet header, a self-flowing type air-breathing system and a cutting type air-breathing system. The self-flowing type air suction system comprises a water conveying structure, a water bucket type water wheel, an air suction structure, an exhaust pipe and a gear steering box. The cutting type air suction system comprises a water conveying structure, a jet flow structure, an air suction structure, a drainage pipe and an exhaust pipe. The two air suction systems are arranged on the upper portion and the lower portion respectively to form a hybrid power air suction system, potential energy of water flow generated by steam condensation can be converted into jet flow kinetic energy, an air suction structure is driven to rotate, and suction force is generated, so that a non-condensable gas film near a heat exchange pipe is sucked away, and steam is made to condense and exchange heat on the outer surface of the heat exchange pipe better. When a crevasse accident occurs in the containment, heat in the containment can be efficiently taken away, contact between steam and a pipe bundle is enhanced, and efficient heat transfer is achieved.

Description

technical field [0001] The invention relates to high-efficiency heat exchange equipment for a passive containment cooling system, and specifically refers to a high-efficiency heat exchanger built in a containment that adopts a double-wheel and double-blade composite power suction type. Background technique [0002] In recent years, with the lack of energy in the world, many clean energy sources have developed rapidly, among which nuclear energy is the fastest-growing among all clean energy sources, which is crucial to meet my country's electricity demand, optimize energy structure, and reduce environmental pollution role. However, while nuclear energy brings clean and efficient energy to mankind, it also brings many risks. How to enhance the safety of nuclear power plants has always been the focus of relevant researchers. In order to alleviate the serious consequences of accidents and effectively ensure the safety of nuclear power plants, passive containment cooling systems...

AI Technical Summary

Problems solved by technology

During the accident stage, a large amount of non-condensable gas will adhere to the surface of the heat transfer tube of the built-in heat exchanger, which will have a great impact on the condensation heat transfer capacity, and the published patents have not formed an effective solution to this problem

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