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Vacuum gate valve with neutron shielding function

A technology of vacuum inserts and neutrons, applied in the direction of sliding valves, valve details, valve devices, etc., can solve the problems of not having the neutron shielding function, and achieve the effects of convenient vacuum system layout, high reliability, and large flow conductance

Inactive Publication Date: 2020-08-21
北京利方达真空技术有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the field of nuclear research, in addition to good vacuum sealing performance, the vacuum gate valve also needs to shield the neutron radiation in the vacuum chamber, and the current conventional vacuum gate valve does not have the neutron shielding function

Method used

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  • Vacuum gate valve with neutron shielding function
  • Vacuum gate valve with neutron shielding function

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the claims of the present application.

[0017] as attached Figure 1-2 As shown, a vacuum gate valve with neutron shielding function includes a driving mechanism 1, a valve housing 2 and a valve plate 3, and the valve plate 3 includes an outer valve plate 3-3 made of 0Cr18Ni9 stainless steel, and an outer valve plate made of lead-boron polyethylene. The shielding plate 3-2, the inner valve plate 3-1 made of 0Cr18Ni9 stainless steel, the outer valve plate 3-3 is provided with an annular sealing groove on the side...

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Abstract

The invention relates to a vacuum gate valve with a neutron shielding function. The vacuum gate valve comprises a driving mechanism, a valve shell and a valve plate, and is characterized in that the valve plate comprises an outer valve plate made of 0Cr18Ni9 stainless steel, a shielding plate made of lead boron polyethylene and an inner valve plate made of 0Cr18Ni9 stainless steel; an annular sealing groove is formed in the side, close to the valve shell, of the outer valve plate, and an ethylene propylene diene monomer vacuum sealing ring is embedded into the annular sealing groove and used for achieving vacuum sealing between the outer valve plate and the valve shell. According to the vacuum gate valve with the neutron shielding function, the problem that an existing conventional vacuumgate valve cannot shield neutron radiation is solved, the vacuum gate valve can be applied to the environment with neutron radiation, and the two functional requirements of vacuum sealing and neutronradiation shielding are met. The vacuum gate valve with the neutron shielding function has the advantages of being large in conductance, good in vacuum sealing performance, convenient to arrange a vacuum system, high in reliability and the like.

Description

technical field [0001] The invention relates to a vacuum gate valve, in particular to a vacuum gate valve with neutron shielding function. Background technique [0002] Vacuum gate valve is used for the vacuum sealing partition between the vacuum pump group and the vacuum container. The vacuum gate valve has a series of advantages such as large flow conductance, good vacuum sealing performance, convenient vacuum system layout, and high reliability. It has been obtained in high vacuum systems. widely used. In the field of nuclear research, in addition to good vacuum sealing performance, the vacuum gate valve also needs to shield the neutron radiation in the vacuum chamber, but the current conventional vacuum gate valve does not have the neutron shielding function. Therefore, it is necessary to design a vacuum gate valve with neutron shielding function. [0003] The vacuum flapper valve with neutron shielding function is a vacuum valve used in the nuclear field, which has bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/02F16K3/314F16K3/30F16K27/04F16K31/04F16K31/60F16K31/12
CPCF16K3/0263F16K3/314F16K3/30F16K27/044F16K31/04F16K31/60F16K31/12
Inventor 阚存东张黎源翟志峰
Owner 北京利方达真空技术有限责任公司
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