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Sealing structure for repairing pebble-bed high-temperature reactor device

A sealed structure, high-temperature reactor technology, applied in sealing, reactors, reducing greenhouse gases, etc.

Active Publication Date: 2018-11-27
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sealing structure for maintenance of a pebble bed high-temperature reactor device to solve the problem in the prior art that measures should be taken to isolate the inside of the device from the outside atmosphere and prevent the internal dust from spilling out after the magnetic drive is removed. question

Method used

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  • Sealing structure for repairing pebble-bed high-temperature reactor device

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Embodiment 1

[0024] Such as figure 1 As shown, the figure schematically shows that the sealing structure for maintenance of the pebble bed high temperature reactor device includes a cylinder body 1 , a sealing end plate 2 , a pressure sleeve 3 , an annular groove 4 , a sealing component 5 and a tightening and pressing component 6 .

[0025] In the embodiment of the present application, the lower end of the cylinder body 1 is installed coaxially with the base shaft hole in the pebble bed high temperature reactor device. It is easy to understand that the cylinder body 1 is a hollow cylindrical structure.

[0026] An opening is formed at the upper end of the cylinder body 1 .

[0027] The sealing end plate 2 is arranged at the opening of the cylinder body 1 . That is to say, the setting of the sealing end plate 2 mainly plays the role of sealing, that is, it seals the opening of the upper end of the cylinder body 1 and plays the role of sealing.

[0028] It should be noted that the so-call...

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Abstract

The invention relates to the technical field of sealing equipment for repairing reactor equipment and discloses a sealing structure for repairing a pebble-bed high-temperature reactor device. The sealing structure comprises a drum body, a sealing end plate, a pressing sleeve, a sealing part and a screwing and pressing part, wherein an opening is structured at the upper end of the drum body; the sealing end plate is arranged at the opening part of the drum body; the pressing sleeve is sheathed at the periphery of the drum body and can do up-down reciprocating sliding along the axial direction of the drum body, and a ring groove is commonly structured by the upper surface of the bottom end of the drum body and the lower surface of the bottom end of the pressing sleeve; the sealing part is arranged in the ring groove; the screwing and pressing part is sheathed at the periphery of the sleeve body and is positioned at the upper part of the pressing sleeve. By screwing of the screwing and pressing part, the screwing and pressing part can drive the pressing sleeve to do axial downward movement along the drum body and extrude the sealing part to be deformed so as to block the ring groove.The sealing structure disclosed by the invention has the advantage that isolation of internal and external pressure, atmosphere and dust of the pebble-bed high-temperature reactor device can be betterrealized.

Description

technical field [0001] The invention relates to the technical field of sealing equipment for reactor equipment maintenance, in particular to a sealing structure for pebble bed high temperature reactor equipment maintenance. Background technique [0002] The pebble bed high temperature gas-cooled reactor uses natural uranium as fuel, graphite as moderator, and helium as coolant. The loading and unloading device and the conveying conversion device of the pebble bed high temperature gas-cooled reactor all use a magnetic drive to realize the power transmission under the static helium seal. When the magnetic drive needs to be repaired or replaced, after removing the magnetic drive, it should be Measures are taken to isolate the interior of the device from the external atmosphere and prevent internal dust from spilling out. Therefore, it is necessary to use a maintenance-specific structure that is convenient for assembly and disassembly, and can realize the sealing and isolation o...

Claims

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Application Information

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IPC IPC(8): G21C13/028
CPCG21C13/028Y02E30/30
Inventor 李红克聂君锋王萌
Owner TSINGHUA UNIV
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