Device for remote transmission control on reactivity of reactor

A technology of transmission control and reactor, applied in the direction of reactor, nuclear reaction control, climate sustainability, etc., can solve problems such as control failure and prone to accidents, and achieve the effects of avoiding radiation interference, high reliability, and compensating angle deviation

Pending Publication Date: 2019-08-30
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

This approach is not advisable in the field of nuclear power engineering, because r

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  • Device for remote transmission control on reactivity of reactor
  • Device for remote transmission control on reactivity of reactor
  • Device for remote transmission control on reactivity of reactor

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] Such as image 3 As shown, the present invention provides a remote transmission control reactor reactivity device, including a drive mechanism, a transmission shaft 17 and a control drum 12; the output shaft 5 of the drive mechanism, the transmission shaft 17 and the control drum 12 are connected in sequence; the The transmission shaft 17 is provided with an outer sleeve 8; the drive mechanism and the control drum 12 are respectively provided with a shell and the shell of the drive mechanism and the shell of the control drum 12 are all airtightly connected with the outer sleeve 8 so that form a confined space. The airtight space is filled with inert gas, so that the transmission parts and bearings operate in an inert gas environment to ensure reliable performance of the rotating parts.

[0030] The casing of the driving mechanism and the casi...

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Abstract

The invention discloses a device for remote transmission control on reactivity of a reactor. The device comprises a driving mechanism, a transmission shaft and a control drum, wherein the output shaftand the transmission shaft of the driving mechanism are sequentially connected with the control drum; an outer sleeve is arranged outside the transmission shaft; the driving mechanism and the controldrum are respectively provided with shells; and both the shell of the driving mechanism and the shell of the control drum are connected with the outer sleeve in a sealed manner to form sealed spaces.The device has the beneficial effects that a mechanical structure is adopted to remotely control rotation of the control drum, then the reactor can be remotely controlled with high reliability, and radiation interference can be avoided. The outer sleeve of the transmission device is filled with a protection gas, a transmission component, bearings and the like are operated in an inert gas environment, and reliable performance of operation components can be ensured. A transmission rod is connected with the combination of a universal joint coupling and a spline, and thus angle deviation betweena power output shaft and the rotating shaft of the control drum and axial stretching and withdrawing caused by temperature change can be compensated.

Description

technical field [0001] The invention relates to nuclear industry machinery, in particular to a long-distance transmission control reactor reactivity device. Background technique [0002] The reactor's control drum is composed of neutron-absorbing and neutron-reflecting materials. By turning the rotation angle of the control drum on the periphery of the core, the position of the neutron reflective material and neutron absorber material relative to the core is changed, thereby adjusting the reactivity of the reactor. [0003] When the neutron absorbing material 2 on the control drum is towards the position of the core 3, it is to suppress the continuous fission state of the nuclear fuel of the reactor (such as figure 1 shown). When the neutron reflective material 1 on the control drum is towards the position of the core 3, it is to promote the continuous fission state of the reactor nuclear fuel (such as figure 2 shown). [0004] In order to meet the long-distance control...

Claims

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Application Information

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IPC IPC(8): G21C7/28G21C7/14
CPCG21C7/14G21C7/28Y02E30/30
Inventor 衣大勇郭志家张金山彭朝晖范月容冯嘉敏杨历军刘磊赵守智柯国土刘天才孙征陈会强吕征周寅鹏石辰蕾姚成志
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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