System and method for enhancing passive natural circulation after a liquid metal cooling reactor loses flow
A liquid metal cooling and natural circulation technology, applied in reactors, cooling devices, nuclear power generation, etc., can solve the problems of reducing reactor pressure drop, failure to function, and low rate, etc., to achieve the effect of natural circulation enhancement
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[0026] Such as figure 1 As shown, the high-pressure gas storage tank 1 is connected to the vertical pipeline 2 through the throttle valve 9, the lower end of the vertical pipeline is connected to the distribution header 8 at the inlet of the core 5, one end of the inverted U-shaped pipeline 3 is connected to the vertical pipeline 2, and the other end is as At the exit of core 5.
[0027] During normal operation, when the reactor is operating normally, the liquid level in the vertical pipe 2 is slightly higher than the connection point connecting the inverted U-shaped pipe 3, and the height needs to be less than the driving pressure head of the main pump 6, for example, for a reactor with lead-bismuth alloy as the coolant , if the pressure head of the main pump is 0.3MPa, it is necessary to maintain the liquid level difference less than 0.3m.
[0028] The liquid level and pressure in the inverted U-shaped pipe are controlled by the first air valve 11 and the pressure control s...
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