How does a fuel dispenser work

The operation of a fuel dispenser is a complex and precise process, which safely and accurately delivers fuel from underground tanks to car tanks through a series of steps. The following is a detailed explanation of the working principle of the fuel dispenser:

Firstly, an overview of the working principle

The fuel dispenser drives the oil pump through an electric motor, and pumps the fuel from the storage tank into the oil-gas separator through a suction pipe and filter for oil and gas separation. Under the action of pump pressure, fuel passes through devices such as Flow meters and sight glasses, and is finally injected into the car's fuel tank through a fuel gun. Throughout the entire process, the fuel dispenser monitors and controls the flow of fuel through various sensors and control systems, ensuring the accuracy of metering and the safety of operation.

Secondly, specific workflow

Oil tank pumping

The fuel dispenser pumps the fuel from the underground oil tank into the interior of the dispenser through an electric pump. This step is usually completed by driving the oil pump with an electric motor, ensuring that the fuel can smoothly enter the fuel dispenser system.

Oil and gas separation

After being pumped into the fuel dispenser, the fuel first enters the oil-gas separator for oil and gas separation. The purpose of this step is to remove gas components from the fuel and prevent gas from entering the Flow meter, which may affect the accuracy of the measurement.

filter

After oil and gas separation, the fuel enters the filter, which filters out impurities and solid particles in the fuel to ensure its cleanliness. This step is crucial for protecting the car engine from damage.

metering

After filtering, the fuel enters the flow meter, which calculates the refueling amount by measuring the flow rate of the fuel. Modern fuel dispensers commonly use electronic counting display devices to convert the mechanical motion of flow meters into electrical signals for processing and display. The measurement process is controlled by a computer device to ensure the accuracy and reliability of the measurement.

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The metered fuel is injected into the car's fuel tank through an electrostatic transfer hose and a fuel gun. The fuel gun usually has an automatic stop function, which will automatically stop fuel injection when the fuel level reaches the set value to prevent fuel overflow. This step is completed by the refueling staff, and the display screen on the refueling machine will show real-time information such as the amount and amount of fuel for reference by the refueling staff and customers.

Thirdly, technical characteristics and security guarantees

Intelligent control: Modern fuel dispensers have intelligent control functions that can automatically identify vehicle models, recommend fuel levels, etc., improving the convenience and personalized service level of refueling.

Safety protection: The fuel dispenser is equipped with various safety protection devices, such as emergency shut-off valves, anti cheating devices, etc., to ensure the safety and compliance of the refueling process. At the same time, the fuel dispenser also adopts measures such as anti-static design to prevent static electricity accumulation from causing safety accidents such as fires.

Regular calibration and maintenance: In order to ensure the accuracy and safety of fuel dispensers, gas stations need to regularly calibrate and maintain them. The market supervision department will also regularly carry out special metrological supervision and inspection of gas stations to promote the lawful and compliant use of fuel dispensers.

In summary, the fuel dispenser safely and accurately delivers fuel from underground tanks to car fuel tanks through a series of precise steps and devices. Its working principle involves multiple stages such as oil tank pumping, oil and gas separation, filtration, metering, and refueling, and is monitored and controlled by various sensors and control systems to ensure the accuracy of metering and the safety of operation.

Wenzhou Jiahao Petroleum Machinery Co, Ltd is a professional manufacturer of petroleum machinery products since 2010. The main products are Fuel dispenser components including Automatic Fuel nozzle, Adblue DEF Nozzle, Vapor Recovery Nozzle, Flowmeter and Fuel pumps.