A refueling gun with an oil and gas recovery structure

Abstract

The invention relates to a refueling gun, in particular to a refueling gun with an oil-gas recovery structure, including a fuel-gas recovery refueling gun and a mechanical gas-liquid ratio regulating valve. The regulating valve is sealed and connected, the gun barrel and the pull rod part are connected with the gas chamber part, the inlet end of the mechanical gas-liquid proportional regulating valve is sealed and connected with a vacuum flow regulating valve, and the sealing sleeve of the gun barrel has a gas absorbing valve Cover, the inside of the gun barrel is press-fitted with a pair of valves, the air receiving cover is connected with a push rod mechanism, the inner side of the gun barrel is provided with a return pipe, and the gun body part of the outer side of the gun barrel is provided with a Return air channel 1 connected to the return air pipe. This product has the advantages of safety, environmental protection, and energy saving. It is an indispensable equipment for the secondary oil vapor recovery system of the gas station and the vehicle oil vapor recovery system.

Description

A refueling gun with an oil and gas recovery structure technical field The invention relates to a refueling gun, in particular to a refueling gun with an oil and gas recovery structure. Background technique In August 2014, the Ministry of Environmental Protection launched the formulation of relevant standards for the on-board refueling oil and gas recovery system (ORVR), but the ORVR system is incompatible with the current gas station secondary oil and gas recovery system. With the promotion of gasoline vehicles with the ORVR system, Due to the incompatibility of the current secondary oil and gas recovery system with the ORVR system, excessive emissions from the gas station will be caused. The current secondary oil and gas recovery system replaces the refueling gun that can identify the car with the ORVR function. When the ORVR refueling gun encounters the ORVR car, the A / L is automatically reduced to about 0.33. When the flow automatic regulating valve is working normally...

AI Technical Summary

Problems solved by technology

The Ministry of Environmental Protection of the People's Republic of China initiated the formulation of relevant standards for on-board refueling oil vapor recovery system (ORVR) in August 2014, but the ORVR system is incompatible with the current secondary oil vapor recovery system at gas stations. With the promotion of gasoline vehicles with ORVR systems, Due to the incompatibility between the current secondary oil and gas recovery system and the ORVR system, excessive emissions will be caused by the oil station

The current secondary oil and gas recovery system replaces the refueling gun that can identify the car with ORVR function. When the ORVR refueling gun encounters the ORVR car, it will automatically reduce the A / L to about 0.33. When the automatic flow control valve is working normally, the tank pressure will remain negative. , the exhaust pipe does not produce emissions; install a three-time oil and gas recovery system to solve the problem of excessive emissions caused by the incompatibility between ordinary oil and gas recovery refueling guns and ORVR vehicles

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