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

Abstract

The invention provides a containment built-in efficient heat exchanger adopting double-wheel double-blade hybrid power blowing. A self-flowing type blowing system comprises a water conveying structure, a water bucket type water wheel, a blowing structure, an exhaust pipe and a gear steering box. A cutting type air blowing system comprises a water conveying structure, a jet flow structure, an air blowing structure, a drainage pipe and an exhaust pipe. The two air blowing systems are arranged on the upper portion and the lower portion respectively to form a hybrid power air blowing system, potential energy of water flow generated by steam condensation can be converted into jet flow kinetic energy, air blowing impellers are driven to rotate, and therefore a non-condensable gas film near a heat exchange pipe is blown away, and steam is made to condense and exchange heat on the outer surface of the heat exchange pipe better. The composite blowing system can effectively thin a non-condensable gas film, enhance the contact between steam and a pipe bundle, realize efficient heat transfer, ensure efficient temperature and pressure reduction in the containment vessel under accident conditions, enhance the safety of the containment vessel and provide a feasible scheme for reducing the construction cost of the containment vessel.

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 blowing 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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