Tatsuno pumps are mainly suitable for the combination of fuel dispensers and the delivery of other gas-liquid mixtures. For fuel dispenser pump the main applicable medium is kerosene, gasoline, diesel oil, and other oils.
Oil and gas separation principle
- The oil-containing gas enters the oil-gas separation chamber through the oil-gas recovery hole. Since oil is heavier than gas, the oil will be deposited in the lower part of the oil-gas separation chamber, while the gas will be in the upper part. The oil deposited in the lower part of the oil-gas separation chamber floats the oil return float, and the oil is sucked into the inlet of the oil pump under the action of the pressure difference; the gas deposited in the upper part of the oil-gas separation chamber is discharged from the exhaust port to outside the pump;
- If the oil level in the oil-air separation chamber is too high, the liquid level block is floated to close the exhaust port to prevent the oil from emerging from the exhaust port. When the oil is sucked into the inlet port from the oil return hole, the oil level in the oil-air separation chamber will drop Finally, the exhaust float opens the airport and continues to deflate as the oil decreases.
- When the oil gas is closed, the pressure in the pump outlet cavity increases and the overflow valve core is pushed open under the pressure of the oil pressure to compress the spring of the valve core, and the oil returns to the oil inlet of the pump, so that the oil in the pump The internal circulation achieves the purpose of constant pressure and noise reduction.
Description of oil flow direction
The oil is sucked from the oil inlet, passes through the inlet filter, and enters the rotor. After the oil and gas are separated, the oil is filtered again in the outlet chamber, and the outlet check valve is pushed open under the action of oil pressure to be discharged out of the pump body.
Oil and gas separation instructions
The oil-containing gas enters the oil-gas separation chamber through the oil-gas recovery hole. Since oil is heavier than gas, the oil will deposit in the lower part of the oil-gas separation chamber, while the gas will be in the upper part. The oil deposited in the lower part of the oil-gas separation chamber floats the oil return float, and the oil returns to the oil inlet of the oil pump under the action of the pressure difference;the gas deposited in the upper part of the oil-gas separation chamber is discharged from the exhaust port to The liquid outside the pump returns to the oil inlet of the oil pump under the action of the pressure difference; the gas deposited in the upper part of the oil-gas separation chamber is discharged from the exhaust port to the pump body
Technical parameters of CTP5 Tatsuno type pump
| Rotating speed | 700rmp (rev/min) |
| flow | 1-inch pipe ≥ 70L/min (liter/min) |
| Vacuum | ≥0.054MPa (MPa) |
| noise | ≤72dB (decibel) |
| Nozzle pressure | 0.2-0.24MPa (MPa) |
| ambient temperature | -25ºC~+55ºC (Celsius) |
Common Simple Fault Analysis of Tatsuno-type Pump
Common faults mainly include leakage, the pump does not run, no oil coming out, the oil coming out of the vent hole, and the oil coming out slowly
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leakage
| Failure Analysis | Solution |
| Check whether the seal corresponding to the leakage part is damaged or aged | Replace damaged seals |
| Inspect castings at leak locations for sand holes or cracks | Replace defective castings |
| Check whether the bolts at the leakage site are loose or uneven | Tighten loose bolts evenly |
2. the pump does not run
| Failure Analysis | Solution |
| Check whether the motor is in good condition and whether the wiring is disconnected | Replace the motor or rewire |
| Check whether the pump rotor and rotor seat are stuck | Clean up dirt and foreign objects |
3.no oil comes out
| Failure Analysis | Solution |
| Exhaust suction | Check whether the oil return float can be closed normally |
| The exhaust pipe has more gas discharge | Check whether the oil inlet pipeline is leaking |
| Large gap due to wear of rotor and rotor seat | Fine-tuning the adjusting ring for gap adjustment |
| The overflow valve is stuck or there is foreign matter, which leads to the lax closure | Clean the dirt on the overflow valve |
| pump stuck | Clean up the dirt in the rotor or pump body |
| The belt is slipping or too loose | Replace the belt or adjust the tensioner |
| tank level low | Refueling to raise the oil tank level |
| Check whether the oil return float can be reset flexibly and whether there is dirt or foreign matter | Clean up dirt and foreign objects |
4. oil comes out of the vent hole
| Failure Analysis | Solution |
| Whether the oil return float is damaged and cannot be opened | Replace exhaust float |
| The exhaust float is damaged or there is foreign matter, which leads to loose closing | Replace the exhaust float or clean up dirt and foreign objects |
| The combination pump is only suitable for underground oil irrigation, if high-level oil irrigation is used, the oil will leak from the exhaust pipe | block the exhaust |
| The pipeline has serious air leakage, which exceeds the oil and gas separation capacity of the pump itself | Repair oil pipeline |
5. the oil comes out slowly
| Failure Analysis | Solution |
| Check whether the inlet filter and outlet filter are dirty and clogged | Clean or replace the filter |
| Bottom valve filter clogged | Clean or replace the bottom valve filter |
| Relief valve adjustment is not in place | Screw the pressure regulating valve screw inward |
| gas inhalation | Repair pipeline and inlet joint gasket |
Corresponding pictures of common simple fault parts of
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