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Banding belt structure for limiting structural displacement of high-temperature gas cooled reactor graphite core

A high-temperature gas-cooled reactor and tie-up belt technology, which is applied in the direction of moderator/core structure, greenhouse gas reduction, reactor, etc. Replacement, long service life effect

Active Publication Date: 2014-06-18
TSINGHUA UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The clamping belt structure of the British Advanced Gas Cooled Reactor (AGR) uses metal elastic elements, which have good support and damping effects, but the structure is relatively complex, and the support characteristics deteriorate under high temperature conditions, and the support performance weakens as the service time increases

Method used

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  • Banding belt structure for limiting structural displacement of high-temperature gas cooled reactor graphite core
  • Banding belt structure for limiting structural displacement of high-temperature gas cooled reactor graphite core
  • Banding belt structure for limiting structural displacement of high-temperature gas cooled reactor graphite core

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Embodiment Construction

[0022] see figure 1 , the present invention provides a clamping belt structure for limiting the displacement of the graphite core structure of a high temperature gas-cooled reactor, which is used to limit the graphite core structure from falling apart due to excessive displacement under high temperature, radiation, earthquake and other loads. Its construction is made of low alloy materials that can withstand high temperatures. Typically, a clamping belt can withstand a force of about 132 tons at an operating temperature of 250 degrees, which is equivalent to being able to withstand a pressure difference of about 66kPa inside and outside the graphite structure.

[0023] A great innovation of the present invention lies in the structural design of the tightening band.

[0024] Such as figure 1 As shown, the clamping belt is composed of 10 clamping belt sector ring units that are movably connected to each other to form a ring structure, and is wound outside the graphite core str...

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Abstract

The invention provides a banding belt structure for limiting structural displacement of a high-temperature gas cooled reactor graphite core. The banding belt structure is made of a low-alloy material which can bear high temperature, and forms an annular structure by movably connecting multiple fan-shaped banding rings. A connecting boss is formed in one end of each fan-shaped banding ring, and a connecting groove is formed in the other end of each fan-shaped banding ring; pin holes are formed in the connecting boss and the connecting groove; the connecting boss in one fan-shaped banding ring is movably connected to the connecting groove in the adjacent another fan-shaped banding ring through a pin; multiple limiting cylinders are welded on each fan-shaped banding ring and can be clamped in corresponding semicircular slots in carbon bricks on the side of the reactor core so as to achieve a limiting effect. When each layer is stacked, the limiting cylinders on the banding rings are arranged in a staggered mode and can be well borne. The banding belt structure has the characteristics of high temperature resistance, high pressure resistance, radiation resistance and long service life and is flexible to mount and convenient to manufacture, mount and adjust.

Description

technical field [0001] The invention relates to a novel clamping belt structure, which is suitable for the technical field of high-temperature gas-cooled reactor internal components. Background technique [0002] In the high temperature gas-cooled reactor, the graphite core structure is the main component of the high temperature gas-cooled reactor core structure, and its overall integrity under the seismic load is the fundamental requirement to ensure the safety functions of the high temperature reactor. Different from the conventional continuum (steel structure, concrete, etc.) structure, the graphite core structure is a bulk structure assembled from graphite bricks, carbon bricks and other components. In order to prevent the graphite core structure from being subjected to high temperature, radiation and earthquake loads If there is excessive displacement and disintegration, it is necessary to set a clamping belt structure on the outer surface of the side carbon brick corre...

Claims

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Application Information

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IPC IPC(8): G21C5/10
CPCY02E30/40Y02E30/30
Inventor 孙立斌吴馨莘倪振松史力王泓杰赖士刚张振声
Owner TSINGHUA UNIV
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