A butterfly valve aerodynamic redundant system and its control method for rocket launching water injection

Abstract

The invention discloses a butterfly valve pneumatic redundant system used for rocket launching water spraying and a control method thereof. A gas tank, a first electromagnetic valve set, a first one-way valve and a pneumatic device in the system are sequentially connected, and a normal-state air supply passage is formed; the gas tank, a second electromagnetic valve set, a second one-way valve and the pneumatic device are sequentially connected, and a fault-state air supply passage is formed; the pneumatic device is connected with a butterfly valve; the method comprises the steps that S1, three-position four-way electromagnetic valves A and C are kept closed, and a three-position four-way electromagnetic valve B is kept opened; S2, whether a three-position four-way electromagnetic valve A is normal or not is detected, if the valve A is normal, the step S3 is executed, and if the valve A is not normal, the step S4 is executed; S3, through the normal-state air supply passage, air is supplied to the pneumatic device; S4, through the fault-state air supply passage, the air is supplied to the pneumatic device. the effective combination and redundant control scheme of the electromagnetic valves can be creatively developed, in-time response of the butterfly valve can be ensured, and reliability of the action of the butterfly valve used for rocket launching water spraying is greatly improved.

Description

technical field [0001] The invention relates to the technical field of rocket launching, and more specifically, the invention relates to a butterfly valve aerodynamic redundant system and a control method thereof for rocket launching and water spraying. Background technique [0002] During rocket launch, high-temperature, high-speed, and highly condensed-phase gas flow often causes severe ablation of launch equipment, launch facilities, and the rocket body, and at the same time produces high-intensity noise problems. In order to solve these problems, a new technology of spraying water to reduce temperature and noise has been developed in the field of rocket launch technology. The essence of this technology is to use a set of water spray system to spray water to the predetermined area during the rocket take-off, and use the cold water medium to mix with high-temperature and high-speed gas flow for energy exchange and momentum exchange, reducing the momentum and energy of the ...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of low reliability of conventional butterfly valves used for rocket launching water spraying, the present invention innovatively provides a butterfly valve aerodynamic redundancy system for rocket launching water spraying and its control method. The redundant control of the device solves the problem of low reliability of the existing butterfly valve used for rocket launching water spraying, and realizes the effective and reliable operation of the butterfly valve for rocket launching water spraying, thus improving the efficiency of the butterfly valve used for rocket launching water spraying. The reliability and stability of the work, thereby improving the reliability of the entire rocket launch water spray system

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