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Cap pneumatic picker of var fuel pot of ball bed high-temperature reactor air cooled

A high-temperature gas-cooled reactor and grabbing device technology, applied in the field of reactor engineering, can solve problems such as not allowing personnel to approach, complex equipment structure and operation, and large radiation dose, so as to achieve high equipment reliability, ensure neutrality, and improve The effect of accuracy and reliability

Active Publication Date: 2007-08-08
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pebble bed high-temperature gas-cooled reactor was first developed by Germany. The experimental reactor built by it has been successfully operated for many years. The spent fuel of these two reactors is stored in the spent fuel storage tank. After the spent fuel storage tank is filled with spent fuel, the nearby The radiation dose is very large, and personnel are not allowed to approach. Therefore, remote control must be used to remotely control the opening and closing of the spent fuel tank. Germany has made a very complicated design for this. Although the remote operation function has been realized, the equipment Structure and operation are too complex

Method used

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  • Cap pneumatic picker of var fuel pot of ball bed high-temperature reactor air cooled
  • Cap pneumatic picker of var fuel pot of ball bed high-temperature reactor air cooled

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Embodiment Construction

[0012] The structure of the pebble bed high temperature gas-cooled reactor spent fuel tank plug pneumatic grasping device proposed by the present invention is shown in Figure 1, including a piston 1, a piston barrel 2, a spring 3, a piston rod 5, a fixing member 10, and a pressure wheel 7 and jaw 8. The piston 1 is placed in the piston barrel 2, and the piston rod 5 is installed at the end of the piston 1. The upper end 11 of the fixing part 10 is circular, as shown in Figure 2, the fixing part 10 is relatively fixed with the piston cylinder 2 in the circular part 11, and the lower part of the fixing part 10 is a cross cylinder, and its cross-sectional view is shown in Figure 3, The piston rod 5 mounted on the end of the piston 1 stretches into the fixture. The claws 8 are symmetrically fixed on the thin end 13 of the cross cylindrical fixing member through the pins 6 , and a T-shaped channel is formed between the two claws 8 . The pressure roller 7 is installed on the end o...

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Abstract

A stopper pneumatic grab of exhausted fuel pot on ball - bed high temperature GCR is prepared by setting piston in piston cylinder, joining the fixing piece top relatively with piston cylinder, and its bottom with jack catch, setting piston rod at piston head and elongating it into fixing piece, forming T shaped channel between jack catches to let pressing wheel set at piston rod head slide up and down along T shaped channel.

Description

technical field [0001] The invention relates to a pneumatic grabbing device for spent fuel tank plugs of pebble bed high-temperature gas-cooled reactors, which is used for grabbing, opening and sealing the plugs of radioactive spent fuel storage tanks of pebble bed high-temperature gas-cooled reactors, and belongs to the technical field of reactor engineering . Background technique [0002] The spent fuel elements of the pebble bed high-temperature gas-cooled reactor are stored in lead-shielded spent fuel tanks, each tank stores about 2,000 spent fuel elements, and the average burnup depth of each spent fuel element is 80,000MWD / tU. The radiation dose of the tank is very high. When the mouth of the storage tank is open, no one is allowed to approach it. Access to, or other operations in the vicinity of, the cork is only allowed in the neck of the can. For the safety of unloading, the operation of extracting the tank plug and putting it into the tank neck must be a remote a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C19/02
CPCY02E30/30
Inventor 王金华张海泉刘继国吴宗鑫王大中张作义
Owner TSINGHUA UNIV
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