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Nuclear power reactor optical fiber penetration assembly and preparation method and use method thereof

A penetration, nuclear power technology, applied in the field of nuclear power reactor optical fiber penetration and its preparation, to achieve the effects of small size, improved signal capacity, and wide application range

Pending Publication Date: 2022-03-04
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the optical signal transmitted in the optical fiber smoothly passes through the nuclear power reactor containment (compartment) while maintaining the sealing performance of the containment (compartment), the present invention provides a nuclear power reactor optical fiber penetrating piece

Method used

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  • Nuclear power reactor optical fiber penetration assembly and preparation method and use method thereof
  • Nuclear power reactor optical fiber penetration assembly and preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This embodiment provides a nuclear power reactor optical fiber penetrating piece, such as figure 1 As shown, the optical fiber penetration member of this embodiment includes a metal shell; the metal shell is composed of an inner metal shell 1 and an outer metal shell 10, both of which are a cylindrical structure, and the inner metal shell 1 The inner metal shell 10 is connected to the inner wall of the containment (stack) through the inner fillet weld 13, the outer metal shell 10 is connected to the outer wall of the containment (stack) through the outer fillet weld 5, and the inner metal shell 1 and the outer metal shell 10 pass through a V-shaped groove 9 are welded together to form the metal housing of the optical fiber penetration.

[0057] The metal casing of the optical fiber penetration is used to achieve a reliable seal between the optical fiber penetration and the containment (stack) wall and accommodate all internal components.

[0058] The outer metal end pl...

Embodiment 2

[0064] This embodiment proposes a preparation method of the optical fiber penetration member proposed in the above embodiment 1, and the specific process is as follows:

[0065] Step 1, peel off a section of the protective sheath in the middle of an armored optical cable to expose the bare optical fiber to form a whole optical cable with a section of bare optical fiber in the middle, that is, form the outer armored optical cable 4, the bare optical fiber 6 and the inner armored optical cable 12 integrated structure.

[0066] Step 2, passing several armored optical cables manufactured according to Step 1 through the preset holes of the outer metal end plate 2 from the outside of the fiber penetration piece, so that the outer end of the bare optical fiber 6 is connected to the inner side of the outer metal end plate 2. The bottom of the groove is flush.

[0067] In step 3, the finished outer metal end plate 2 is placed inside the outer metal shell 10 , and the welding between t...

Embodiment 3

[0076] This embodiment adopts the optical fiber penetration piece proposed in the above embodiment 1 to realize the convenient connection of the armored optical cable at the construction site, such as figure 2 As shown, the specific implementation process is as follows:

[0077] An optical fiber penetration piece 16 is installed on the containment (stack) wall, and a reliable seal is achieved by means of welding.

[0078] An outer connection box 14 is arranged on the outside of the optical fiber penetration member 16, and an outer connection frame 15 is arranged inside the outer connection box 14, and the connection point between the outer armored optical cable 4 and the transmission optical cable outside the containment (stack) is arranged on the outer connection frame 15. The connection point provides mechanical protection, and the outer connection box 14 provides mechanical protection for the outer connection frame 15 and the connection point of the optical cable fixed the...

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Abstract

The invention discloses a nuclear power reactor optical fiber penetration assembly and a preparation method and a use method thereof. The nuclear power reactor optical fiber penetration assembly comprises a metal shell, an outer side metal end plate, a glass package and an inner side metal end plate. The outer side metal end plate is welded with the outer side opening of the metal shell; the inner side metal end plate is welded with the inner side opening of the metal shell; a plurality of holes are formed in the outer side metal end plate and are used for allowing the outer side armored optical cable to pass through; a plurality of circular grooves are formed in the inner surface of the outer side metal end plate and are used for accommodating glass packaging; the glass package is arranged in the metal shell, is positioned on the inner side of the outer metal end plate and is used for accommodating the bare optical fiber; the silicon-based potting material fills an internal space formed by the glass potting inner side, the inner surface of the inner side metal end plate and the metal shell and is used for accommodating the inner side armored optical cable; a plurality of holes are formed in the inner metal end plate and used for the inner armored optical cable to penetrate out. According to the invention, the optical signal transmitted in the optical fiber can smoothly pass through the nuclear reactor containment vessel while the sealing performance of the containment vessel is maintained.

Description

technical field [0001] The invention belongs to the technical field of nuclear power reactors, and in particular relates to a nuclear power reactor optical fiber penetrating piece, a preparation method and a use method thereof. Background technique [0002] In a traditional nuclear power reactor, electrical penetrations are used to transmit electrical signals inside the containment (inside the reactor compartment) to outside the containment (outside the reactor compartment). Perform the sealing function of the containment (stack) mechanically, that is to say, complete the electrical connection of electrical signals while maintaining the sealing performance of the containment (stack). The electrical penetration has limited signal capacity and relatively large volume. Taking the pressurized water reactor nuclear power plant as an example, the structure of the electrical penetrating part is a cylinder with a diameter of about 40cm and a length of 2m (related to the thickness o...

Claims

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Application Information

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IPC IPC(8): G02B6/44G21C17/116G01K11/324G01H9/00
CPCG02B6/4415G02B6/4429G02B6/4444G02B6/4479G21C17/116G01K11/324G01H9/004Y02E30/30
Inventor 何鹏何正熙朱加良徐思捷向美琼徐涛叶宇衡秦越陈静李小芬李红霞吴茜朱毖微青先国吕鑫吕新知张吉斌郑嵩华王雪梅邓志光
Owner NUCLEAR POWER INSTITUTE OF CHINA
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