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Mixing chamber structure for prism type high-temperature gas cooled reactor

A high-temperature gas-cooled reactor and prismatic technology, applied in the field of reactors, can solve the problems of prismatic high-temperature gas-cooled reactor without mature design and no mixing chamber 5 structure, and achieve the effect of improving safety and improving uniformity

Pending Publication Date: 2021-07-27
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The pebble bed high-temperature gas-cooled reactor that has been built in China does not have a mixing chamber 5 structure
However, there is no mature design for prismatic high-temperature gas-cooled reactors

Method used

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  • Mixing chamber structure for prism type high-temperature gas cooled reactor
  • Mixing chamber structure for prism type high-temperature gas cooled reactor

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 , figure 2 As shown, a mixing chamber structure for a prismatic high-temperature gas-cooled reactor provided by the present invention is arranged at the bottom of a prismatic high-temperature gas-cooled reactor, wherein the side walls made of graphite and the bottom plate 3 made of metal are common The mixing chamber 5 formed is sealed and connected between the side wall and the bottom plate 3, the side wall is connected with the bottom of the prism-type high-temperature gas-cooled reactor, and an outlet flow channel 6 is also provided on the side wall. The coolant channel of the reflection layer under the core of the type high temperature gas-cooled reactor is connected, and the outlet flow channel 6 on the side of the mixing chamber 5 is connected with the core outlet channel. The coolant flowing out from the bottom of the p...

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Abstract

The invention belongs to the technical field of reactors, and particularly relates to a mixing chamber structure for a prism type high-temperature gas cooled reactor. The mixing chamber structure is arranged at the bottom of a prism type high-temperature gas cooled reactor and comprises a mixing chamber (5) jointly formed by a side wall made of graphite and a bottom plate (3) made of a metal material, wherein the side wall and the bottom plate (3) are in sealed connection, the side wall is connected with the bottom of the prism type high-temperature gas cooled reactor, an outlet flow channel (6) is further formed in the side wall, and a coolant flowing out of the bottom of the prism type high-temperature gas cooled reactor can flow out through the outlet flow channel (6) after being mixed in the mixing chamber (5). According to the invention, the coolant can be collected, mixed and transported, the uniformity of the coolant flowing out of a reactor core fuel area is improved, and the safety of reactor operation is improved.

Description

technical field [0001] The invention belongs to the technical field of reactors, and in particular relates to a mixing chamber structure for a prismatic high-temperature gas-cooled reactor. Background technique [0002] A high-temperature gas-cooled reactor refers to a nuclear reactor that uses helium as a coolant and has a high outlet temperature. High-temperature gas-cooled reactors use coated particulate fuel and graphite as a moderator. The core outlet temperature is 850-1000°C, or even higher. Nuclear fuel generally uses high-enriched uranium dioxide, and some use low-enriched uranium dioxide. According to the shape of the core, high temperature gas-cooled reactors are divided into pebble bed high temperature gas cooled reactors and prismatic high temperature gas cooled reactors. The high-temperature gas-cooled reactor has the advantages of high thermal efficiency (40%-41%), deep burnup (up to 20MWd / t uranium), and high conversion ratio (0.7-0.8). Due to the good ch...

Claims

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Application Information

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IPC IPC(8): G21C5/02G21C15/12G21C15/14
CPCG21C5/02G21C15/12G21C15/14Y02E30/30
Inventor 董建华张朔婷张成龙朱思阳李呼昂姚红贺楷杨长江刘国明汪俊
Owner CHINA NUCLEAR POWER ENG CO LTD
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