Self-generation pressurization system suitable for pressurization of multi-working-condition storage tank of nuclear vehicle

Abstract

The invention discloses a self-generating pressurization system suitable for pressurization of a multi-working-condition storage tank of a nuclear vehicle. The self-generating pressurization system comprises a gas source, a main pressurization pipeline, an auxiliary pressurization pipeline, an adjusting pipeline, a main pressurization pipeline electromagnetic valve, an auxiliary pressurization pipeline electromagnetic valve, an adjusting pipeline electromagnetic valve, a pressure sensor, a liquid hydrogen storage tank and a control computer. The pressure sensor is used for monitoring the pressure in the liquid hydrogen storage tank; the control computer is used for controlling the on-off states of the main pressurizing pipeline electromagnetic valve, the auxiliary pressurizing pipeline electromagnetic valve and the adjusting pipeline electromagnetic valve according to the pressure value output by the pressure sensor, and conveying gas hydrogen provided by the gas source to the liquid hydrogen storage tank through any one or more of the main pressurizing pipeline, the auxiliary pressurizing pipeline and the adjusting pipeline; stable pressurized gas hydrogen is provided for the liquid hydrogen storage tank, and the internal pressure of the liquid hydrogen storage tank is maintained to be higher than the specified pressure. Large-size rapid pressure supplementation and multi-working-condition stable pressurization of a nuclear carrier pressurization system are achieved, and the system is suitable for pressurization of a manned fire detection nuclear carrier storage box.

Description

technical field [0001] The invention belongs to the technical field of carrier tank pressurization, and in particular relates to a self-generated pressurization system suitable for nuclear carrier multi-working condition tank booster. Background technique [0002] Nuclear thermal propulsion uses the huge energy released by nuclear fission as a source, and can achieve a specific impulse of up to 900s, which is more than twice that of traditional chemical propulsion. to reduce the starting size. [0003] The pressurized delivery system is an important part of the power system. It is used to provide a certain range of pressure for the liquid hydrogen storage tank during engine operation, so as to ensure that the liquid hydrogen has a safe and reasonable pressure when it enters the turbo pump and avoid cavitation. The problem caused the engine to fail to work. Compared with traditional chemical propulsion, the following two points should be considered in the design of tank pre...

AI Technical Summary

Problems solved by technology

[0005] (2) In terms of the characteristics of nuclear thermal propulsion, the power system uses only one kind of propellant, the engine starts and shuts down for a long time, and is in a low working state for a long time: the start and shutdown of the reactor is a slow process, and the engine will operate at a small flow rate. Work longer hours under low conditions

[0006] It can be seen that traditional launch vehicle supercharging technology is difficult to meet the supercharging requirements of nuclear launch vehicles.

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