Swimming pool type regional low-temperature heat supply reactor

Abstract

The invention belongs to the technical field of reactors, and particularly relates to a swimming pool type regional low-temperature heat supply reactor which comprises a reactor core and a loop. The reactor core is arranged at the bottom of a reactor pool, and the depth of pool water in the reactor pool is 20-30 meters; an upper hanging basket, a middle hanging basket, a lower hanging basket and areactor core base are sequentially arranged in the reactor pool from top to bottom; drive wires of a control rod drive mechanism are arranged in the upper hanging basket, control rod guide barrels are arranged in the middle hanging basket, the reactor core is arranged in the lower hanging basket, the lower hanging basket is arranged on the upper side of the reactor core base which is fixed to thebottom surface of the reactor pool, and the reactivity of reactors is controlled by control rod clusters; the loop is communicated with the lower hanging basket, and heated pool water in the reactorcore can be delivered to the outside of the reactor pool via the loop, can be subjected to heat exchange and can flow back into the reactor pool. The swimming pool type regional low-temperature heat supply reactor has the advantages of high inherent safety level and reliability, economical efficiency and practicality.

Description

Technical field [0001] The invention belongs to the technical field of reactors, and specifically relates to a pool type regional low-temperature heating reactor. Background technique [0002] Nuclear heating is a method of centrally heating the surrounding cities with the energy generated by nuclear fission as the heat source. Compared with traditional heat sources, it can significantly reduce pollution emissions, and the heating is safe and reliable, which will effectively improve my country's energy structure and ease the increasingly serious The tight energy supply situation in China is of positive significance for protecting the environment, protecting the health of the people, and alleviating the pressure of coal burning. [0003] At present, there are two main application methods of nuclear energy heating. One is a pressure shell type, which has a structure similar to a high temperature and high pressure PWR, and the other is a swimming pool type. The two types are in the Sov...

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Problems solved by technology

[0004] However, in the existing swimming pool heating reactor technology, firstly, the depth of the pool water is not enough, and the outlet water temperature is low, which does not match the heating demand of the current domestic urban heating network. It is not suitable for the demand of urban regional heating network, and it is difficult to be used for commercial promotion and application; second, the existing pool-type reactor branch circuit is single (the branch circuit refers to the pipeline used to connect the reactor on the primary circuit), and continuous heating cannot be guaranteed under any design basis accident conditions; the third is the lack of mitigation of heap melting accidents The passive cooling circulation system occurs, the fourth is that the radioactive gas treatment measures are unreasonable; the fifth is that the inherent safety level of the reactor is not high enough, etc. Therefore, the practicality, economy, safety and reliability of the current swimming pool heating reactor There is still a lot of room for improvement

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