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Nuclear reactor safety rod with rotating mechanism and sealing structure of safety rod

A nuclear reactor and rotating mechanism technology, applied in the field of ship nuclear power, can solve the problems of easy unilateral wear of safety rods, short service life, easy wear of seals, etc., and achieve the effects of increasing rigidity, improving safety, and increasing service life.

Active Publication Date: 2015-03-25
临泉县灵萃技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the pressure tube of the cross-pipe pressure reactor is inclined (18-23 degrees from the plumb line) (in order to increase the gap between the filling and unloading valves), the safety rod is extremely easy to wear on one side, and its The seal is also prone to wear and has a short service life

Method used

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  • Nuclear reactor safety rod with rotating mechanism and sealing structure of safety rod
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  • Nuclear reactor safety rod with rotating mechanism and sealing structure of safety rod

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Embodiment Construction

[0031] The invention specifically relates to a nuclear reactor safety rod with a rotating mechanism and its sealing structure, which is mainly used in ships and submarines with nuclear reactors, and its structure is as attached figure 1As shown, it includes a closed stroke chamber mainly composed of the pressure chamber head 116 of the nuclear reactor, the stroke housing 114 fixed on the outer surface of the pressure chamber head 116, and the stroke top cover 112. In the stroke chamber, there is a valve that extends into the nuclear reactor. Safety bar 115, the other end of safety bar 115 is connected with drive shaft 111 by coupling, the top of drive shaft 111 is provided with rotating mechanism, is provided with lifting control mechanism at the middle part of drive shaft 111, between safety bar 115 and nuclear reactor The joint of the pressure shell head 116 is provided with a sealing structure; the rotation mechanism controls the rotation of the transmission shaft and the sa...

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Abstract

The invention discloses a nuclear reactor safety rod with a rotating mechanism and a sealing structure of the safety rod. The nuclear reactor safety rod comprises a travel chamber which is mainly composed of a pressure chamber seal head of a nuclear reactor, a travel shell fixed on the outer surface of the pressure chamber seal head, and a travel top cover, wherein a safety rod of which one end stretches into the nuclear reactor is arranged in the travel chamber; the other end of the safety rod is connected with a transmission shaft; a rotating mechanism is arranged on the top of the transmission shaft; a lifting control mechanism is arranged in the middle of the transmission shaft; and a sealing structure is formed in the joint of the safety rod and the pressure chamber seal head in the nuclear reactor. According to the nuclear reactor safety rod disclosed by the invention, the rotating mechanism of the safety rod in the nuclear reactor is increased, the sealing structure of the safety rod is improved, the safety rod is rotated by virtue of the rotating mechanism so as to cause contact surface variation with the pressure chamber seal head, eccentric wear of the safety rod caused by shake of the nuclear reactor is avoided, and the service life is prolonged. Meanwhile, the sealing structure around the safety rod is improved, the safety rod is convenient to rotate, and zero leakage of inside heavy water is realized.

Description

technical field [0001] The invention relates to a nuclear reactor safety bar with a rotating mechanism and its sealing structure, belonging to the technical field of ship nuclear power. Background technique [0002] The way human beings consume excessive disposable energy to develop economy must be changed. In the next forty years, safe, clean, efficient and reliable nuclear energy installations will enter a period of rapid development, and nuclear power installations for ships with a reactor power of 60,000 kilowatts and above will receive increasing attention. [0003] At present, commercial ships are powered by diesel engines or steam turbines. Along with economic development, ship nuclear power plant with a power of more than 60,000 kilowatts will surely appear in people's field of vision. The cruising range of the "Trident" nuclear submarine reaches 1 million nautical miles, and the cruising range of ultra-large merchant ships (with a load capacity of more than 300,00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C7/12G21C7/10
CPCG21C7/11G21C7/12Y02E30/30
Inventor 韩先锋
Owner 临泉县灵萃技术服务有限公司
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