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Home > News| Difference between self-priming pump and centrifugal pump |
| Date: 2017-3-14 Hits: 1111 |
| The difference between self suction pump and centrifugal pump is self-priming pump inlet pipe does not need to install the valve first filled with water after the water can be sucked up, then do not need to add water pump, centrifugal pump is much larger than itself with water storage function, with a diversion of lifelong self-priming function. The centrifugal pump is to play the role of booster pump, the fluid level must be high than to Liu to come inside the pump body to start, if only in the low level than the centrifugal pump inlet pipe inlet valve installed inside the pump and the pipe filled with liquid to achieve self suction function, or install the water at the inlet, such as centrifugal pump long time does not work, the inlet pipe and pump the water basically in the second start has not, again again again diversion, more trouble on the operation, because the centrifugal pump inlet valve at the end of a long time without seal can achieve the effect of sealing liquid completely will slowly drain back to the tank. So in need of self suction function under the condition of self suction pump is better than the effect of centrifugal pump. Self suction, centrifugal pump are used to return the pump body structure. The pump body is composed of a suction chamber, a liquid storage chamber, swirl chamber, liquid return hole, gas-liquid separation chamber composed of centrifugal pump impeller after the startup, the room will suck the liquid and suction tube and the air suction, and can be fully mixed in the impeller under the action of centrifugal force, the liquid entrainment this gas to the outer edge of the swirl chamber flow, white foam and high-speed liquid ring is formed in a certain thickness on the outer edge of the impeller. Gas liquid mixture enters the gas separation chamber through the diffusion tube. At this point, due to the sudden decrease of flow rate, the lighter gas is separated from the mixed liquid, and the gas continues to rise and fall through the discharge outlet of the pump body. After the degassing of liquid to the liquid storage chamber, and the reflux hole again into the impeller, the impeller and the internal gas sucked from the suction pipe again mixed in high speed rotating impeller role, and flows to the outer edge of the impeller....... As this process goes round and round, the air intake duct decreasing, until the exhaustion of the air self suction pump to complete the process of self absorption centrifugal pump, and into normal operation. Because the centrifugal pump has the unique exhaust ability, so the self-priming pump can transport the liquid containing a gas, no need to install the valve, use the cruise on good stripping function. |
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