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Neutron beam window fastening and sealing device

A sealing device and neutron beam technology, applied in the direction of pipes/pipe joints/fittings, flange connections, passing components, etc., can solve the problems of complex mechanism, complex action, easy interference, etc., and achieve simple mechanism, not easy to collide, and high efficiency The effect of fastening and sealing

Pending Publication Date: 2019-03-29
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a fastening and sealing device for a neutron beam window in order to overcome the defects of complex mechanism, complicated action, easy collision and easy interference described in the above-mentioned prior art. Simple action, not easy to collide and not easy to interfere

Method used

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  • Neutron beam window fastening and sealing device
  • Neutron beam window fastening and sealing device
  • Neutron beam window fastening and sealing device

Examples

Experimental program
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Effect test

Embodiment 1

[0050] A neutron beam window fastening and sealing device, such as Figure 1~9As shown, it includes a neutron takeover flange 1 , a neutron beam window, fastening bolts 3 and sealing components 4 . The neutron flange 1 is also provided with a vacuum gauge 5 . The rear side of the neutron flange 1 is connected with the neutron channel 6 .

[0051] The neutron beam window 2 is provided with four first bolt holes 21 in a rectangular array; the neutron adapter flange 1 is provided with four second bolt holes 11 corresponding to the first bolt holes 21 .

[0052] Fastening bolt 3 comprises screw rod 31 and the bolt head 32 that is positioned at screw rod 31 one ends, and screw rod 31 other ends are provided with fastening nut 33; The first elastic component 35 , one end of the first elastic component 35 withstands the fastening nut 33 , and the other end is used to withstand the neutron adapter flange 1 . The fastening nut 33 is threadedly connected with the screw rod 31 . The ...

Embodiment 2

[0063] This embodiment is the second embodiment of the neutron beam window fastening and sealing device of the present invention. The difference from Embodiment 1 is that the fastening bolts 3 include the same number of forward fastening bolts and reverse fastening bolts; The two fastening bolts 3 of the first bolt hole 21 at the diagonal position are both positive fastening bolts or reverse fastening bolts.

[0064] The other components and connections are the same as in Embodiment 1.

[0065] The four first bolt holes 21 form a rectangular array, and the corresponding fastening bolts 3 also form a rectangular array. The difference between the forward fastening bolt and the reverse fastening bolt is that the rotation direction is opposite when the fastening nut 33 is tightened. Such as Figure 10 As shown, the fastening nut 33 of the forward fastening bolt rotates clockwise when tightened, and the fastening nut 33 of the reverse fastening bolt rotates counterclockwise when ...

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Abstract

The invention discloses a neutron beam window fastening and sealing device. The neutron beam window fastening and sealing device comprises a neutron tube connecting flange, a neutron beam window, fastening bolts and a sealing component; a plurality of first bolt holes are formed in the neutron beam window, and a plurality of corresponding second bolt holes are formed in the neutron tube connectingflange; each fastening bolt comprises a screw rod and a bolt head which is located at one end of the screw rod, a fastening nut is arranged at the other end of the screw rod, the fastening nut is provided with a torque limiting mechanism used for driving the screw rod to rotate, the screw rod is further provided with a first elastic component, a bolt head groove is formed in the edge of the rearside of each second bolt hole, and the bolt head groove is formed in the edge of the rear side of the second bolt hole, and when fastening and sealing is carried out, the bolt head penetrates throughthe second bolt hole and rotates, and the bolt head can be embedded into the bolt head groove under the pushing of the first elastic component. The neutron beam window fastening and sealing device provided by the invention is simple in structure, simple in operation, not easy to collide and interfere, and can be used for fastening and sealing the neutron beam window through cooperation with an electric wrench accurately and efficiently.

Description

technical field [0001] The invention relates to the technical field of use and maintenance of a neutron beam window, and more particularly, to a fastening and sealing device for a neutron beam window. Background technique [0002] Neutron beam window inserts operate in high-radiation areas for a long time. It is necessary to consider the impact of radiation damage on its life, and consider routine maintenance and replacement in the design. Since component materials will cause induced radioactivity (i.e. activation) after being irradiated in high-radiation areas, the maintenance of those activated or surface-contaminated components must be operated remotely under protective conditions to avoid radiation hazards to maintenance personnel. The main function of the neutron beam window fastening and sealing device is to seal the neutron beam and avoid neutron leakage. Since the device has higher requirements on reliability than ordinary maintenance equipment, simple and effective...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L23/024F16L23/036F16L23/18
CPCF16L23/024F16L23/036F16L23/18
Inventor 李荣泳孙振忠
Owner DONGGUAN UNIV OF TECH
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