Safety rod driving system of liquid heavy metal cooling reactor

A liquid heavy metal and driving system technology, applied in the field of reactor engineering and reactor equipment, can solve the problem that the safety rod driving system cannot directly apply liquid heavy metal to cool the reactor, and achieve the effect of simple structure, high system reliability and simple working principle

Inactive Publication Date: 2013-04-24
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the safety rod drive system in ordinary water reactors and sodium-cool

Method used

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  • Safety rod driving system of liquid heavy metal cooling reactor
  • Safety rod driving system of liquid heavy metal cooling reactor
  • Safety rod driving system of liquid heavy metal cooling reactor

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Embodiment Construction

[0033] The specific structure and specific implementation methods of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] The specific working mode of the safety rod driving system of a liquid heavy metal cooling reactor of the present invention is as follows:

[0035] Stack up:

[0036] The grabbing device 5 on the transmission rod locks the travel rod 12 together, the motor 1 drives the transmission rod 3, and presses down the travel rod 12, so that the safety rod bundle 16 connected with the travel rod 12 moves downward gradually, when the safety rod bundle 16 When the effective zone of the moving rod 12 is completely below the core, the upper end of the moving rod 12 just arrives at the electromagnet 7, and the electromagnet 7 is energized, and the magnetic force generated produces a binding force on the moving rod 12, and the moving rod 12 relies on the restraint of the electromagnet 7 to overcome the buoyancy. T...

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Abstract

The invention discloses a safety rod driving system of a liquid heavy metal cooling reactor, which belongs to the field of nuclear reactor equipment. The system comprises a motor (1), a rod position indicator (2), a transmission rod (30), a movable damper (4), a gripping device (5), an electromagnet (7), a moving rod guide tube (10), a moving rod (12), a control rod baffle plate (13), another gripping device (15) and a shell (6). According to the safety rod driving system, the safety rod is positioned at the lower end of a reactor core in power operation on the basis of the characteristics that a liquid heavy metal solution is large in density and an object bears large buoyancy in the liquid heavy metal solution; and under an emergency working condition, the safety rod is inserted into the reactor core by virtue of the buoyancy, and the safe reactor shutdown is realized. The safety rod driving system meets the requirements on shutdown of the nuclear reactor, and is simple in structure, reliable and convenient to repair.

Description

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Claims

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Application Information

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Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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