Pipeline fueling vehicle

Abstract

The invention discloses a pipeline fueling vehicle. By additionally arranging a shuttle valve and a second two-position three-way valve, when oil continuously enters an oil return tank to reach a highliquid level and a pneumatic control pressure control valve is not effectively closed, an effective sound-light alarm is given out, and the pneumatic control pressure control valve can be automatically cut off and closed. Compared with the prior art, modification is little, and the automatic cut-off closing function can be achieved only by additionally arranging the second shuttle valve and the second two-position three-way valve. And the high-liquid-level sound-light alarm lamp is arranged on the oil return tank, when the liquid level in the oil return tank reaches the high liquid level, anoiling person can be reminded through sound, and compared with an original light alarm lamp, the reminding effect is stronger, and the effect is better.

Description

Technical field [0001] The invention relates to the field of refueling vehicle equipment, in particular to a pipeline refueling vehicle. Background technique [0002] At present, in the aviation fuel supply industry, aircraft refueling vehicles are the most widely used special vehicles, and aircraft pipeline refueling vehicles are a common type of aircraft refueling vehicles. During the use of the pipeline refueling truck, it was discovered that there was a major safety hazard of spilling oil in the return tank. After the refueling operation of the aircraft is completed (releasing the deadman), if the air-controlled pressure control valve fails to be closed effectively, the oil will be stringed into the return tank through the air-controlled pressure control valve, causing the return tank to continue to enter oil. When the oil level reaches the high and high level, if the sound and light alarm is not effective to remind the fueler, the oil spill is prone to occur; the existing l...

AI Technical Summary

Problems solved by technology

During the use of pipeline refueling trucks, it was found that there was a major safety hazard of oil overflow in the return tank

After the aircraft refueling operation (loosen the Deadman), if the air-operated pressure control valve fails to close effectively, the oil will pass through the air-operated pressure control valve into the return tank, causing the return tank to continue to enter the oil. When the oil level reaches the high liquid level or the high and high liquid level, the sound and light alarm cannot be effectively issued to remind the refueling staff, and oil spills are prone to occur; the existing low-height pipeline refueling trucks only set the high and high liquid levels when leaving the factory Light alarm, no sound alarm for high and high liquid levels, light alarm is not easy to detect during the actual refueling process, and the existing low-height pipeline refueling truck does not have a device to automatically close the air-operated pressure control valve, these are likely to cause oil spills on the apron the occurrence of the event

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