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High-temperature fission chamber

A fission chamber and high temperature technology is applied in the field of detectors in the reactor, which can solve the problem of inability to guarantee the effective output of the detection results of the high temperature fission chamber.

Pending Publication Date: 2022-05-06
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

[0003] However, since the outermost layer of the armored cable is made of metal material, in the extreme environment of the reactor, the contact between the armored cable and the suspension device or other structures is likely to affect the transmission performance of the armored cable, so that the detection results of the high-temperature fission chamber in the reactor cannot be guaranteed. Effective output of

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  • High-temperature fission chamber

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Embodiment Construction

[0027] It should be noted that, in the case of no conflict, the embodiments in the application and the technical features in the embodiments can be combined with each other. Undue Limitation of This Application.

[0028] In this application, the "top", "bottom" orientation or positional relationship is based on the attached figure 1 The orientation or positional relationship shown. It should be understood that these orientation terms are only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a reference to the application. limits.

[0029] The embodiment of the present application provides a high temperature fission chamber 30, please refer to figure 1 , the high-temperature fission chamber 30 includes a probe 31 , a suspension device 32 , an in...

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Abstract

The embodiment of the invention provides a high-temperature fission chamber which comprises a probe, a suspension device, an insulation device, a shielding piece and an armored cable, the suspension device is provided with a cable channel, the probe is arranged at one end of the suspension device, the insulation device comprises a plurality of first insulation supporting pieces, and the shielding piece is arranged at the other end of the suspension device. The first insulating support members are arranged in the cable channel and are arranged at intervals along the extension direction of the cable channel. The shielding piece is arranged in the cable channel and located at the end, away from the probe, of the cable channel. An armored cable is arranged in the cable channel, one end of the armored cable is electrically connected with the probe, and the other end of the armored cable penetrates through the first insulation supporting piece and the shielding piece and extends out of the suspension device. The high-temperature fission chamber provided by the embodiment of the invention can guarantee effective output of a detection result.

Description

technical field [0001] The invention relates to the technical field of detectors in reactors, in particular to a high-temperature fission chamber. Background technique [0002] At present, the high-temperature fission chamber is used as a kind of in-core detector to monitor the fuel consumption and neutron fluence rate in the core, so as to control the insertion depth of the regulating rod in the core. The high-temperature fission chamber is placed vertically downward into the reactor through a U-shaped reactor inner channel about ten meters long, and is placed in a high-temperature, strong-radiation environment. A probe is installed at the bottom of the suspension device of the high temperature fission chamber. The center of the probe is flush with the mid-plane of the core. The probe sends the current pulse signal vertically upward through the armored cable connected to the probe to the secondary instrument outside the reactor for display and processing. [0003] However,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C17/06G21C17/10
CPCG21C17/10G21C17/06Y02E30/30
Inventor 张向阳谢乔何高魁
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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