Electric and hand-operated metering fuel pump

Product overview of electric and hand-cranked dual-purpose metering gas pumps
Electric and hand-cranked dual-use metering gas pumps are suitable for small and medium-sized oil refueling stations, gas stations, agricultural machinery stations, supply and marketing cooperatives, enterprise factories and mines, fleets, vehicles, Ships and other units suck and transport various oil materials, such as gasoline, diesel, kerosene, engine oil, food oil, etc. It has the advantages of compact structure, reliable quality, stable performance, and easy movement. It is equipped with an explosion-proof motor and a millimeter flow meter. When there is power, it can be refueled electrically, and when there is no power, it can be refueled by hand. It has accurate measurement and no zero return device.
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Characteristics and uses of the electric and hand-cranked dual-purpose metering gas pump
The hand-cranked and electric dual-purpose metering gas pump is a vane type with a relief valve device inside. When the fuel tank is full, After oiling, when the oil gun is turned off, the vane pump can continue to work. When the oil pressure exceeds the rated pressure, the overflow valve in the pump will automatically function and the oil will flow back to the oil pool or oil tank on its own.
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Technical parameters of hand-operated, electric dual-purpose metering fuel pump
, model vertical dual-purpose metering electric pump
, allowable suction lift
, maximum working pressure
, flow range/maximum flow
, specified flow range error (level) (level)
, nominal diameter of oil inlet
, motor explosion-proof three-phase asynchronous motor
, Motor power supply voltage
Flow meter type rotary wing flow meter (indicating value error)
Flow meter type rotary wing flow meter (indicating value error)
, Transmission method V-belt pulley transmission V-belt type
/>, overall dimensions
, weight of the whole machine
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Structure description and working principle of hand-cranked, electric dual-purpose metering gas pump
Turn the explosion-proof switch knob to on, off At the pass position of the sign, the explosion-proof motor drives the vane pump to work through the triangle pulley. The oil passes from the oil pool (or oil barrel) through the oil pipe filter, and the oil inlet hole of the vane pump is sucked into the vane pump chamber. Then it passes through the oil outlet hole of the vane pump. , the oil is pressed into the flow meter for automatic counting and measurement, and flows into the oil outlet gun through the oil outlet pipe. When the handle of the oil gun is tightened, the oil will automatically flow out and be injected into the container. Release the handle to stop the oil outflow. < br/> When the oil gun rubber is closed and the motor still drives the vane pump to work, the oil pressure in the vane pump will increase accordingly. In order to prevent damage to the mechanical parts, once the oil pressure exceeds the rated pressure, the relief valve in the pump will automatically operate , the oil in the inner cavity of the pump flows back to the oil pool (or tank) through the inlet pipe of the vane pump inlet hole.
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Structure diagram of hand-cranked and electric dual-purpose metering fuel pump
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Operation and use of hand-cranked, electric dual-purpose metering fuel pump
, operating procedures
Turn on the power, rotate the explosion-proof motor knob to the open position.
Tighten the oil gun The oil will be discharged by pinching the hand, and the flow meter will start counting at the same time.
Release the oil discharge handle and the oil will stop discharging. At this time, the counting value is the amount of oil (or the difference between the two readings before and after is the amount of oil) Amount)
When stopping work, you should first turn the explosion-proof motor knob to the off position, then cut off the power switch, and wind the rubber sheathed cables, etc.
, Use precautions
After long-distance transportation or If you keep a gas dispenser that has not been used for a long time, you must use an ohmmeter to measure the insulation resistance of the motor and ground before use. The value should not be lower than megohms.
Before starting the whole machine, check whether the motor rotation is correct (facing the The V-belt pulley should rotate clockwise).
When the oil gun is turned off and the motor still drives the vane pump to absorb oil, the duration should generally not exceed one minute.
In order to maintain normal oil output efficiency and pressure, the vane pump can be used to Use the adjusting screw of the relief valve on the pump to adjust the pressure of the oil circuit.
Push the copper cap on the counter side of the flow meter inwards (finger-level) flow meter. After each indication, you can rotate the handwheel counterclockwise. Set the size pointer back to zero. The counting plate pointer will automatically return to zero. If you want to count continuously, do not press the copper cap anymore.
Control the tightness of the oil gun handle to roughly adjust the oil output.
The rubber-sheathed cable of this machine should be avoided from being worn by the ground and its objects during use. It is strictly prohibited to pedal the rubber sheath. The integrity of the rubber sheath should be checked frequently during use.
The oil inlet and outlet pipes, oil outlet guns, and cables should be wound around the specified position when not in use and cannot be dragged anywhere. The oil inlet pipe should be scrubbed clean before being inserted into the oil pool (or oil drum).
Before connecting the rubber-sheathed cable to the power supply, you should clearly identify the ground wire and phase wire (use a multimeter to measure the ground wire). The ground wire should be reliably connected to the motor casing and the ground.
Do not use cables that easily generate and accumulate large amounts of static electricity. Nylon plastic pipes replace the machine's special inlet and outlet oil pipes for refueling.
Do not use ordinary cables to replace the machine's special rubber-sheathed cables and disassemble and connect them at will.
Operators are strictly prohibited from wearing chemical fiber clothing for refueling operations. , and should abide by the relevant safety operating regulations in the petroleum and chemical industries
Operators are strictly prohibited from increasing the rated flow rate on their own to prevent static electricity from accelerating and causing unsafe risks.
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Type hand crank, Repair and maintenance of electric dual-purpose metering fuel pump
, The vane pump, flow meter oil gun and the oil flow in the pipeline should be checked frequently. If there is no smooth flow, the cause should be found and repaired in time.
, Frequently Keep the conductive rubber wheels clean and avoid coating them with insulating dirt.
When moving or repairing the machine, the power supply should be cut off and the explosion-proof switch knob should be turned to the stop position to avoid unsafe operation caused by live operation. Accident.
The filter at the end of the oil inlet pipe should be checked and cleaned regularly. When cleaning, loosen the pipe box screw to pull out the filter. Be careful not to break the filter during cleaning. Broken filters should be replaced in time.
. The total working hours of the whole machine should be disassembled, inspected and cleaned.
. In order to simplify the structure, this machine is not equipped with lighting fixtures. If the user needs to illuminate the counter to observe the numbers, , you should equip yourself with explosion-proof lights, and strictly use ordinary lamps and flashlights.