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Special non-kinetic safety equipment of reactor

A safety facility and passive technology, applied in the field of nuclear reactors, can solve the problems of high construction and operation costs, many active parts, lack of passive characteristics, etc., and achieve the effect of improving inherent safety and simple structure

Active Publication Date: 2007-04-04
NUCLEAR POWER INSTITUTE OF CHINA
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  • Claims
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AI Technical Summary

Problems solved by technology

However, the structure of the safety system of a nuclear power plant is relatively complex, and there are many active parts, which require regular inspection and maintenance. After the accident, the correct operation of the operator is required to make the system complete its design function. It lacks passive features, and its construction and operation costs are relatively high

Method used

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  • Special non-kinetic safety equipment of reactor

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Embodiment Construction

[0010] As shown in Figure 1, a large-capacity accumulator pool 1 that is 10 to 30 meters above the top of the reactor core is provided on one side of the reactor vessel 9, and a water injection pipe 2 that communicates with the mouth of the reactor is provided at the bottom of the accumulator pool 1. An ascending pipe 3 drawn out of the mouth passes through the pond and is higher than the water surface of the pond. During normal operation, the core pressure is maintained by the accumulator tank 1 and the water injection pipe 3 .

[0011] When the power is increased or the power fluctuates, the volume fluctuation of the temperature change is realized by the water injection pipe 3 .

[0012] In the event of a large break in the pipeline, the pressure of the reactor core drops rapidly. At this time, the accumulator pool 1 injects a large amount of water into the reactor core based on the level difference, so that the reactor core is always submerged. When the water between the ma...

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Abstract

A special-designed motionless safety reactor study and low temperature heat input reactor facilities in nuclear reactor field. To the side of the reactor installed a large volume water pool whose top is 10-30 meters higher than the reactor top. To the bottom of the water pool a water injection pipe is linked to the reactor inlet, a pipe linked to the reactor outlet is connected to the pool and in a position higher than water level. Outside the plant there is an emergency water tank which is 25-28 meters higher than the main heat exchanger and an air cooler which is 15-18 meters higher than the main heat exchanger. Both the water tank and the air cooler are linked to the recycle pipe between the main heat exchanger and the second heat exchanger.

Description

technical field [0001] The invention relates to the technical field of nuclear reactors, in particular to a passive special safety facility suitable for low-temperature heating reactors and research reactors. Background technique [0002] Utilizing nuclear energy for heating is an important means to solve heating and seawater desalination. Although there are many conceptual designs of low-temperature heating nuclear reactors at home and abroad, the economy and safety have not been widely accepted by people, especially the low-temperature heating reactors cannot be too far away from densely populated areas, and nuclear safety is more important. The reactor type with higher inherent safety and low cost is the key to the promotion of nuclear heating reactors. [0003] At present, in order to ensure the safety of the reactor, nuclear power plants are equipped with complex safety injection systems, waste heat export systems and voltage stabilization systems. Adopting the safety...

Claims

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Application Information

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IPC IPC(8): G21C15/18
CPCY02E30/40Y02E30/30
Inventor 罗树新宋丹戎苏荣福秦忠
Owner NUCLEAR POWER INSTITUTE OF CHINA
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