High-temperature gas-cooled reactor emergency cooling dehumidification system and method

Abstract

The invention provides a high-temperature gas-cooled reactor emergency cooling dehumidification system and method. The system comprises a primary water/helium heat exchanger, a secondary water/helium heat exchanger and a gas-water separator, wherein the primary water/helium heat exchanger, the secondary water/helium heat exchanger and the gas-water separator are sequentially arranged from top to bottom. A reactor primary loop refrigerant inlet is formed in one end of the primary water/helium heat exchanger, a primary water inlet and a primary water outlet are formed in the upper portion of the primary water/helium heat exchanger, and a primary refrigerant outlet is formed in the lower portion of the primary water/helium heat exchanger. A secondary refrigerant inlet, a secondary water inlet and a secondary water outlet are formed in the upper portion of the secondary water/helium heat exchanger, and a secondary refrigerant outlet and a secondary condensate water outlet are formed in the bottom of the secondary water/helium heat exchanger. A refrigerant return reactor primary loop outlet is formed in the top of the gas-water separator, a refrigerant inlet is formed in the middle of the gas-water separator, and a separated water outlet is formed in the bottom of the gas-water separator. The secondary condensate water outlet of the secondary water/helium heat exchanger and the separated water outlet of the gas-water separator are communicated with a drainage system. The invention further provides the high-temperature gas-cooled reactor emergency cooling dehumidification method. The system and method achieve the purposes of reactor primary loop dehumidification and emergency cooling.

Description

technical field [0001] The invention relates to a reactor engineering accident cooling and dehumidification system and method, in particular to a high temperature gas-cooled reactor accident cooling and dehumidification system and method. Background technique [0002] The high-temperature gas-cooled reactor uses graphite as the moderator and helium as the coolant. It is an advanced nuclear reactor with inherent safety, high power generation efficiency, and extremely versatile uses. During the operation of the high-temperature reactor, the following problems are solved: (1) When an accident occurs in the reactor for some reason, it is necessary to cool down the system to prevent the accident from getting worse; (2) Before the reactor is started, or when the core is exposed to the atmosphere After the intermediate maintenance, the core needs to be dehumidified. (3) Cooling the driving gas of the high-temperature reactor absorption ball shutdown system; (4) Active cooling with...

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Problems solved by technology

[0003] In order to solve the problems existing in the above-mentioned prior art, the object of the present invention is to provide a high-temperature gas-cooled reactor accidental cooling and dehumidification system and method, which solves the problems of dehumidification and accidental cooling of the primary circuit of the reactor

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