The pneumatic diaphragm pump is a volumetric pump that is driven by compressed air and undergoes volume change through reciprocating deformation of the diaphragm. Its working principle is similar to that of a plunger pump.
Pay attention to the following points when operating the pneumatic diaphragm pump:
1. Ensure that the maximum particles contained in the fluid do not exceed the maximum safety of the pump through the particle diameter standard.
2. The intake pressure should not exceed the maximum allowable pressure of the pump. Compressed air above the rated pressure may cause personal injury and property damage and damage the performance of the pump.
3. Ensure that the pumping piping system can withstand the highest output pressure achieved, and ensure the clean and normal working conditions of the driving pneumatic system.
4. Static sparks may cause explosions and personal injury and property damage. Use wires with a large cross-sectional area as needed to properly ground the grounding screws on the pump.
5. The grounding requirements are in compliance with local laws and regulations and some special requirements on site.
6. Tighten the pump and each connecting pipe joint to prevent static sparks from being generated by vibration. Use an antistatic hose.
7. Periodically check and test the reliability of the grounding system, requiring a grounding resistance of less than 100 ohms.
8. Maintain good exhaust and ventilation, away from inflammable, explosive and heat sources.
9. The exhaust of the pump may contain solid objects. Do not point the exhaust port to the work area or people to avoid personal injury.
10. When the diaphragm fails, the delivered material will be ejected from the exhaust muffler.
11. When transporting flammable and toxic fluids, connect the drain to a safe place away from the work area.
12. Use a pipe with a smooth inner wall of at least 3/8" inner diameter to connect the vent and muffler.
13. The high pressure of the fluid may cause serious personal injury and property damage. Please do not perform any maintenance work on the pump and the pipe system when the pump is pressurized. For maintenance, first cut off the intake air of the pump and open it. The bypass pressure relief mechanism relieves the piping system and slowly loosens the connected pipe joints.
14. If the harmful toxic fluid pump is delivered, please do not send the pump directly to the manufacturer for repair. Properly dispose of in accordance with local laws and regulations, and use the genuine accessories of Shanghai Wangquan Pump Company to ensure the service life.
15. Pumps using aluminum alloy materials for liquid transport. Please do not use to transport Fe3+ containing liquids and halogenated hydrocarbons and other halogenated hydrocarbon solvents. Corrosion will cause the pump to burst.
16. Ensure that all parts that contact the conveyor are not corroded by the fluid being transported.
17. Ensure that all operators are familiar with the operation and use of the pump's safe use precautions, if necessary, with the necessary protective equipment.
18. Proper use of the pump does not allow long-term dry running.
Maintenance and maintenance of pneumatic diaphragm pumps
Make sure the pneumatic diaphragm pump is always in good working or standby state. Living pneumatic diaphragm pumps, fire pumps, spray pumps, pressure pumps, sewage pumps, air conditioning pneumatic diaphragm pumps installed in all buildings. The maintenance personnel of the management office are responsible for the regular maintenance of the pneumatic diaphragm pump.
1. Living pneumatic diaphragm pump and air conditioning pneumatic diaphragm pump conduct daily inspection and maintenance once a week, and perform comprehensive maintenance every six months.
2, fire-fighting pneumatic diaphragm pump and spray pump every month, the pressure pump is tested every two months, the running time is 10-15 minutes, when the fire pump starts, the fire-fighting outlet at the top of the pipe network is sprayed to a spray range of more than 6M, each Carry out a comprehensive maintenance in half a year.
3. The sewage pump and the submersible pneumatic diaphragm pump are fully maintained every six months.
4. When the pneumatic diaphragm pump is being serviced, the valves, pressure gauges, pipes, etc. within 2 meters connected to the pump body should be maintained at the same time with the pump.
5, the maintenance of the pump body
1. Check that the pump body should be free from damage, the nameplate is intact, the direction of the water flow direction is clear and clear, the appearance is neat, and the paint is in good condition.
2. Replenish the lubricating oil. If the oil is discolored and has impurities, it should be replaced.
3. Check the packing condition of the packing. If there is any leakage, increase or replace the asbestos rope packing.
4. If the coupling bolt and rubber pad of the coupling are damaged, they should be replaced.
5. Fasten the machine base screws and do anti-rust treatment.
6. Living gas pneumatic diaphragm pump and air conditioning pneumatic diaphragm pump are frequently operated. The bearings at both ends of the coupling should be dismantled or replaced every year.
6, motor maintenance
1. The appearance inspection should be neat and tidy, the nameplate is intact, and the grounding wire is well connected.
2. Disassemble the wire connecting piece in the motor terminal box, and test the insulation resistance value between the phase and phase of the motor winding and the ground with a 500V megohm meter to be not less than 0.5 megohm.
3. The three-phase wire and connecting piece in the motor junction box should be firm and tight.
7. Maintenance of related valves, pipes and accessories
1. The switch of each valve should be flexible and reliable, with no leakage inside or outside.
2. The check valve action should be flexible, and there is no water leakage inside and outside the valve.
3. The pressure gauge is accurate and the dial is clear.
4. The appearance of the pipes and accessories is neat and beautiful, without cracks, and the paint should be intact without falling off.
5, jog to determine whether the steering of the pneumatic diaphragm pump is correct, if it is wrong, it should be corrected.
8, the maintenance of the control cabinet
1. Disconnect the main power of the control cabinet and check each switch. The start and stop buttons should be flexible and reliable.
2. Check whether the air switch, contactor, relay and other electrical appliances in the cabinet are in good condition, and fasten the wiring screws of the contact head and terminal of each electrical appliance.
3. Clean the inside and outside of the control cabinet.
4. Close the main power supply and check that the power indication should be normal.
9. After the maintenance is completed, start the pneumatic diaphragm pump and observe whether the ammeter and the indicator light are normal.
10. Observe that the pneumatic diaphragm pump should run smoothly, without obvious vibration and abnormal sound, the pressure gauge indicates normal, and the control cabinet appliances have no bad noise.
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