The explosion-proof self-priming pump is a positive displacement pump for vacuum suction and squeeze discharge. It has some unique characteristics. Since it was invented more than sixty years ago, it has been used more and more widely in various industrial and mining situations.
Working principle of explosion-proof self-priming pump
① There is an eccentric bump in the pump cavity. When the flexible blade leaves the eccentric block, the volume between the blades increases continuously, generating a vacuum, which makes the liquid continuously sucked into the inlet of the pump cavity.
② When the flexible blade rotates, the liquid is taken from the suction part of the pump cavity to the discharge part.
③ When the flexible blade contacts the eccentric bump again, it will bend, and accompanied by a squeezing action, the liquid will be discharged from the pump cavity without interruption and without pulsation, thus completing the whole process of suction and discharge. The flexible elastomer technology of the impeller As the core technology of the flexible pump, the impeller of the pump should have good elasticity, small permanent deformation, and can withstand long-term high-frequency flexing without breaking or tearing.
There are currently two materials for the impeller-sanitary nitrile rubber and EPDM; the nitrile impeller is mainly used for vegetable oil, mineral oil, oily media and areas with higher sanitary requirements; the ethylene propylene wheel is mainly used for weak inorganic acids , Organic acids, alkalis, salts, alcohols, ketones, sewage and other wide-ranging media.
Features of explosion-proof self-priming pump:
1. The pump body is made of stainless steel precision casting, and all flow metal parts are stainless steel (1Cr18Ni9Ti) s304 or S316L.
2. It can transport gas-containing liquid and foam liquid without air resistance
3. It can transport medium containing suspended soft and hard particles.
4. Small size and large flow-Generally speaking, compared with competitive pumps, the volume is the smallest under the same flow. Easy to install and move.
5. Instantly self-priming-no additional device is needed, no need to priming before starting. The suction range can reach up to five meters.
6. When the flexible rotor is running, there is no metal contact, and the torque limiter does not produce sparks; when equipped with an explosion-proof motor, it is especially suitable for the transportation of alcohol, gasoline, acetone and other solvents.
7. Beautiful appearance, durable and convenient maintenance
Post time: 2021-12-07
