A waste heat exhaust ventilation system for dry storage of spent fuel in nuclear power plants

A waste heat discharge and ventilation system technology, applied in the field of reactor engineering, can solve problems such as deterioration of working conditions, release of burned radioactive substances, spent fuel, etc., and achieve the effects of energy saving, daily maintenance reduction, and inherent safety

CN105590659BActive Publication Date: 2017-07-07CHINERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-07-07

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Abstract

The invention relates to the technical field of reactor engineering, and provides a residual heat removal ventilation system for dry storage of a spent fuel in a nuclear power station. The system comprises a natural ventilation device and a forced ventilation device, and the system specifically comprises cold air inlet cabins, hot air exhaust cabins, pipelines, ventilation heat shield cylinders, exhaust fans, and air coolers etc. arranged in a storage warehouse, an operation room, and a ventilation equipment room in a corresponding manner and with a certain connecting relation. By employing the system, the spent fuel is not stored by employing pool storage, the security of the spent fuel is not dependent on power equipment such as water pumps and fans, daily maintenance is reduced, the energy is saved, and the inherent security is provided. Besides, the system can be used for cooling storage tanks of the spent fuels in storage facilities of the spent fuels in pebble-bed high-temperature gas-cooled reactor nuclear power stations, and residual heat of the storage tanks of the spent fuels is discharged to the external environment in a combined mode of forced ventilation and natural ventilation.
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Description

technical field

[0001] The invention relates to the technical field of reactor engineering, in particular to a waste heat exhaust ventilation system for dry storage of spent fuel in nuclear power plants. Background technique

[0002] Since the birth of nuclear power plants, various technologies have continued to develop, and they have become one of the indispensable energy sources for major countries in the world. Reactors, the core equipment of nuclear power, have developed various types including pressurized water reactors, boiling water reactors, and gas-cooled reactors. Spent fuel has two main characteristics, that is, it is radioactive and still releases decay heat, so it is necessary to set up special facilities for the storage of spent fuel.

[0003] Through years of development, China has formed a complete nuclear power system, developed and introduced pressurized water reactors, heavy water reactors and other reactor types of nuclear power plants, and the storage me...

Examples

Embodiment Construction

[0035] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. ...