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Ceramic and metal sealed safety-level K1 class cable used in nuclear reactor

A metal sealing, nuclear reactor technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of high temperature resistance can only reach 250 ℃, does not meet the requirements of higher temperature, and has a limit of radiation resistance, and achieves Guarantee the stability and reliability of work and prolong the service life

Active Publication Date: 2013-10-30
CHINERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

1x10 7 Gy requirements, but there are the following problems: the insulation used in the penetration is polyetheretherketone organic material, and there is a limit to the radiation resistance.

Method used

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  • Ceramic and metal sealed safety-level K1 class cable used in nuclear reactor

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Embodiment Construction

[0013] The safety class K1 cables used in nuclear reactors sealed by ceramics and metals proposed by the present invention have a structure such as figure 1 As shown, the structure including the conductor assembly is as figure 1 As shown in , it consists of a metal sheath tube 1, a plurality of wires 4 and an insulating porcelain tube 5. A plurality of wires 4 are placed in the metal sheath tube 1 and protrude from the metal sheath tube 1. A sealed insulating medium 2 is arranged between the wires 4 in the metal sheath tube 1. A sealed insulating ceramic plate 3 is arranged between the conductors 4 , and the surface of the conductor 4 protruding from the end of the metal sheath tube is coated with a ceramic insulating coating 6 and covered with an insulating porcelain tube 5 .

[0014] In the above cable, the composition of the insulating porcelain tube is one of silicon carbide, silicon nitride or aluminum oxide, the sealing and insulating medium is aluminum oxide or magnesi...

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Abstract

The invention relates to a ceramic and metal sealed safety-level K1 class cable used in a nuclear reactor, and belongs to the technical field of the structure of the nuclear reactor. The cable consists of a metal sheath tube, a plurality of wires and an insulating porcelain tube, wherein the wires are arranged in the metal sheath tube; a sealed insulating medium is arranged among the wires in the metal sheath tube; a sealed insulating porcelain plate is arranged between the wires on the end parts of the metal sheath; a ceramic insulating paint is coated on the surfaces of the wires extending out of the end parts of the metal sheath tube; and the insulating porcelain tube is sleeved. The cable provided by the invention has the characteristics of good irradiation resistance, aging resistance, corrosion resistance, high temperature resistance, vibration resistance and the like, and has the advantages of simplicity in manufacturing, low cost and long service life.

Description

technical field [0001] The invention relates to a safety grade K1 cable used in a nuclear reactor sealed by ceramics and metal, and belongs to the technical field of nuclear reactor structures. Background technique [0002] The safety grade K1 cables used in reactors must not only withstand long-term radiation, corrosion, high temperature and aging, but also ensure electrical performance under normal operating conditions and various accident conditions (such as earthquakes, LOCA). CN 101964222 Patent A "Class 1E K1 Control Cable for Nuclear Reactors" discloses a cable structure that can meet the cumulative radiation dose of 1.1x10 7 Gy requirements, but there are the following problems: the insulation used in the penetration is polyetheretherketone organic material, and the radiation resistance has a limit. [0003] The cables of other domestic cable manufacturers all use other organic materials (such as halogen-free flame-retardant cross-linked polyethylene or ethylene-pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/17H01B7/28H01B7/02
Inventor 王其恺石琦
Owner CHINERGY CO LTD
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