Product Overview of QBYF Fluorine lined Pneumatic Diaphragm Pump

QBKF fluorine lined pneumatic diaphragm pump is a new type of conveying machinery that uses compressed air as the power source and F46 material as the filtering component. It can pump and absorb various corrosive liquids, granular liquids, high viscosity, volatile, flammable, and highly toxic liquids. It has the advantages of long service life and no pause. It can pump flowing liquids and transport some non flowing media, and has many advantages of conveying machinery such as self-priming pumps, submersible pumps, shielded pumps, mud pumps, and impurity pumps. QBKF fluorine lined pneumatic diaphragm pump has six models and specifications with diameters: 10mm, 15mm, 25mm, 40mm, 50mm, and 65mm.

Product Overview of QBYF Fluorine lined Pneumatic Diaphragm Pump

1. No need for irrigation or water diversion. The suction lift can reach up to 5m, the head can reach 70m, and the outlet pressure is ≥ 6kg/cm2;

2. Spacious flow and good passing performance. It allows for a maximum particle diameter of 10mm. When pumping mud and impurities, there is minimal wear on the pump;

3. The head and flow rate can be infinitely adjusted through the opening of the air valve (the air pressure can be adjusted between 1-7kg/cm2);

4. The pump has no rotating parts, shaft seals, diaphragms, etc. The medium pumped is completely separated from the moving parts and workpiece medium of the pump, and the conveyed medium will not leak outward. So when pumping toxic, easily reactive or corrosive media, it will not cause environmental pollution and endanger personal safety;

5. No need for electricity. It is safe and reliable to use in flammable and explosive places;

6. Can work submerged in a medium;

7. Easy to use, reliable in operation, and only requires simple opening and closing of the gas valve. Even if the pump runs without medium for a long time or suddenly stops due to unexpected situations, it will not be damaged. Once overloaded, the pump will automatically stop, with self-protection performance. When the load returns to normal, it can automatically start and run again;

8. The pump has a simple structure and few vulnerable parts. It is easy to install and maintain, and the medium transported by the pump does not come into contact with moving parts such as the valve and connecting rod. Unlike other types of pumps, the performance gradually decreases due to wear and tear of components such as rotors, pistons, gears, and blades

9. Can transport viscous liquids (viscosity below 10000 centipoise):

1. This pump does not require oil lubrication and has no impact on the pump even when idling. This is the biggest feature of the pump.

The main application of QBYF pneumatic diaphragm pump

1. Pump peanut butter, kimchi, mashed potatoes, red sausage, jam apple puree, chocolate, etc.

2. Pump paint, gum, and pigment.

3. Adhesive and glue, all types can be pumped up.

4. Various types of tiles, porcelain, bricks, and ceramic glazes.

5. After drilling the oil well, use a pump to suck up sediment and grout.

6. Pump various emulsions and fillers. ．

7. Pump various types of sewage.

8. Use a pump as an oil tanker and a barge to clear and extract sewage from the warehouse.

9. Hops and fermented powder slurry, syrup, sugar dense.

10. Pump water from mines, tunnels, ore dressing, and slag. Pump cement grout and mortar.

11. Various rubber pastes.

12. Various abrasives, corrosives, petroleum and mud, cleaning oil stains, and general containers.

13. Various highly toxic, flammable, and volatile liquids.

14. Various strong acids, strong alkalis, and highly corrosive liquids.

Performance parameters of QBYF fluorine lined pneumatic diaphragm pump

Working principle of QBYF fluorine lined pneumatic diaphragm

In each of the two symmetrical working chambers of the pump, there is an elastic diaphragm installed. The connecting rod integrates the two diaphragms into one. Compressed air enters the distribution valve from the pump's intake head and pushes the diaphragms in the two working chambers, driving the two diaphragms connected by the connecting rod to move synchronously. At the same time, the gas in the other working chamber is discharged out of the pump from behind the diaphragm. Once reaching the end of the journey. The valve mechanism automatically introduces compressed air into another working chamber, pushing the diaphragm in the opposite direction, thus forming synchronous reciprocating motion of the two diaphragms. There are two one-way ball valves installed in each working chamber. The reciprocating motion of the diaphragm causes a change in the volume of the working chamber, forcing the two one-way ball valves to alternately open and close, thereby continuously inhaling and discharging liquid.

Precautions for operation of pneumatic diaphragm pump

(1) Pneumatic diaphragm pump on/off load operation: Pneumatic diaphragm pump is driven by a variable frequency motor. If the on/off load is too large or too small, in order to avoid the above situation as much as possible, it is strictly required to control the on/off load at around 30%, and the instrument is set to ensure that the increase or decrease of load must be completed within a certain period of time, effectively maintaining the frequency converter from a process perspective.

(2) The instrument air and lubricating oil pressure system of the pneumatic diaphragm pump is interlocked with the main motor. The injection and discharge valves of the propulsion fluid are air closed valves, and a certain air pressure must be maintained at all times. The minimum operating pressure of the two valves is not less than 0.4 MPa, so the instrument air pressure is generally maintained above 0.15 MPa. Even after stopping the pump, the instrument air is not stopped to avoid insufficient or excessive liquid in the propulsion fluid chamber. The air supplied to the valves is filtered and atomized. During the operation of the pneumatic diaphragm pump, the lubricating oil pressure should not be lower than the pressure interlock value (0115MPa), and the pressure difference of the lubricating oil outlet filter should not be too large. The steel ball inside the lubricating oil flow sight glass should be at the upper limit position. When adjusting this flow rate, the adjustment amplitude should not be too large to avoid instantaneous excessive flow and rapid pressure drop, which may cause interlock tripping. Through the above process improvements and proficient mastery of operating points, the pneumatic diaphragm pump has always had a stable process environment during operation. After more than a year of operation, there has only been one trip due to electrical reasons, achieving long-term, safe and efficient operation.