Double-pipe pressure-balancing refueling device and control method thereof for aircraft fuel oil

Abstract

The invention relates to an aircraft fuel dual-pipe balanced pressure refueling device and a control method thereof, comprising a refueling system and a control system, the refueling system including a pipeline centrifugal pump, a ball valve, a joint valve, a pressure sensor, a pressure flow controller, a safety valve, a pressure flow The controller is connected to the No. 1 branch and the No. 2 branch. Both the No. 1 branch and the No. 2 branch include fuel filters, flow meters, electro-hydraulic valves, refueling hoses and refueling connectors in series. The No. 1 branch also includes A Venturi tube is installed, and the control system includes a conversion power supply, an electrical control box, a quantitative controller, and a display operation interface. The control system is electrically connected to a pipeline centrifugal pump, a pressure sensor, a flow meter, and an electro-hydraulic valve. The invention can realize double-pipe balance pressure refueling function, and can ensure the constant pressure of the refueling port and the safety of refueling. At the same time, the invention can monitor the flow rate and realize the automatic end of refueling. The invention has convenient operation, high refueling efficiency and precision.

Description

technical field [0001] The invention relates to the technical field of aircraft refueling, in particular to an aircraft fuel double-pipe balanced pressure refueling device and a control method thereof. Background technique [0002] At present, the fuel tank pressure filling system of the aircraft is a single-pipe independent refueling system, which cannot refuel the aircraft with two pipes at the same time, and there is no dual-pipe balance control function. Chinese patent ZL201610090479.1 discloses a multi-branch that can monitor and automatically refuel in real time. The refueling system includes refueling tanks, oil pumps, coarse filters, filter separators, oil collectors, flow meters, pneumatic ball valves, manual ball valves, refueling joints and pipelines, etc. The refueling control system includes refueling controllers, display and operation man-machines Interface, power module, drive module, safety barrier, flow sensor, solenoid valve and electronically controlled th...

AI Technical Summary

Problems solved by technology

[0003] However, the automatic refueling device is not equipped with a device to keep the fuel delivery pressure constant, and there is no multi-branch refueling balance control function, so that the weight balance of the multi-branch refueling of the aircraft cannot be guaranteed, and the pressure protection function of the aircraft refueling tank cannot be realized.

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