Engine vacuum redundant automatic measurement and control system and method

Abstract

The invention provides an automated redundant measuring and controlling system for engine vacuumizing. The system comprises mutually interchanged optical transceivers arranged in a front-end equipment room and a back-end power square cabin respectively; the optical transceiver in the front-end equipment room is communicated with a touch screen, a first measuring and controlling device and a second measuring and controlling device, and the first measuring and controlling device and the second measuring and controlling device are connected with a signal adapter; the optical transceiver in the back-end power square cabin is communicated with a first measuring and controlling upper computer and a second measuring and controlling upper computer. According to the automated redundant measuring and controlling system for engine vacuumizing, the measuring and controlling integrated scheme with double lower computers and the multiple upper computers is adopted, far-end controlling is achieved, and the reliability is high; meanwhile, by comparing the measuring and controlling integrated scheme with a traditional method separating measuring from controlling, the efficiency is improved.

Description

Technical field [0001] The invention relates to the field of liquid oxygen kerosene engines for rockets, in particular to a redundant automatic measurement and control method for engine vacuum. Background technique [0002] my country's new rockets use liquid oxygen kerosene engines, and the fuel cavity needs to be evacuated and filled before the rocket is launched. According to the rocket launch requirements, the engine vacuum time is after the personnel evacuated before the rocket launch, which is controlled by the operator in the rear power shelter. In order to ensure the smooth launch of the rocket, the vacuum system must work correctly according to the nodes, pumping the engine fuel cavity pressure below the rated value within the specified time while maintaining the pressure not less than 1000s. [0003] At present, my country's existing engine vacuum measurement and control methods are: manual button control vacuum pump, manual valve control ejector two methods for vacuum t...

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