In-pile heat separation system of liquid heavy metal cooling natural circulating pool type reactor

Abstract

The invention discloses an in-pile heat separation system of a liquid heavy metal cooling natural circulating pool type reactor. The system consists of an inner layer coolant inlet, an outer layer coolant inlet, a coolant inlet baffle, an inner layer heat partition plate, a middle layer heat partition plate, an outer layer heat partition plate, an inner layer coolant outlet, an outer layer coolant outlet, an inner layer coolant outlet baffle and an outer layer coolant outlet baffle. Gaps between the heat partition plates of the system are filled with liquid heavy metal and are communicated with a cold pool; coolants in the gaps between the heat partition plates are used for cooling the heat partition plates from bottom to top under the action of natural circulating driving force and are gathered into a hot pool through the coolant outlets above the heat partition plates. The in-pile heat separation system realizes a function of separating the cold pool from the hot pool in the liquid heavy metal cooling natural circulating pool type reactor; with the adoption of the complete passive design, the system is simple in structure; during running, an in-pile structural member does not need to be added or started; the heat efficiency of the liquid heavy metal cooling natural circulating pool type reactor can be effectively improved, the circulating stability of the coolants of the reactor can be guaranteed, and the economical property and the safety of the reactor can be improved.

Description

technical field [0001] The invention belongs to the technical field of reactor system component design, and in particular relates to a cold and hot pool separation system in a liquid heavy metal cooling natural circulation pool type reactor reactor. Background technique [0002] The liquid heavy metal cooling natural circulation pool reactor adopts an integrated design. All the internal components of the reactor are immersed in a container. The probability of loss of flow accidents and coolant loss accidents has good inherent safety and economy. Its simple working process is: the coolant enters the core from the cold pool, cools the core under the driving force of natural circulation, and then flows into the heat pool. The coolant in the heat pool enters the main heat exchanger, and transfers heat to the secondary circuit for cooling. The coolant is collected into the cold pool to form a loop of coolant circulation. [0003] In-core thermal separation system is an importan...

AI Technical Summary

Problems solved by technology

If the natural circulation reactor adopts this design, it is not conducive to maintaining the temperature difference between the hot pool and the cold pool, which will reduce the natural circulation capacity of the whole reactor, and affect the thermal efficiency and stability of the primary coolant cycle.

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