Self suction pump body structure with self suction pump for self suction pump. Automatic self-priming pump body is composed of a suction chamber, a liquid storage chamber, swirl chamber, liquid return hole, gas-liquid separation chamber and other components, automatic self-priming pump normal starting, impeller suction chamber of the liquid suction pipe and the air suction, and can be fully mixed in the impeller in centrifugal force under the liquid entrainment from the gas swirl chamber edge flow is formed with a certain thickness of white foam and high-speed liquid ring on the outer edge of the impeller.
The gas-liquid mixture enters the gas-liquid separation chamber through the diffusion tube. At this point, due to the sudden decrease in the flow rate, the lighter gas is separated from the mixture gas and liquid, and the gas is discharged from the mouth of the self suction pump body to continue rising. After the degassing of liquid to the liquid storage chamber, and the reflux hole again into the gas and the impeller, impeller sucked from the suction pipe again mixed in high speed rotating impeller role, and flows to the outer edge of the impeller. Along with the process of the cycle, the air suction pipe is reduced, until the exhaustion of gas, to complete the process of self absorption, automatic self-priming pump and into normal operation.
A cooling chamber is arranged at the bottom of the bearing body of some self control self sucking pump. When the bearing temperature rise is more than 70 degrees, the temperature of the bearing can be cooled by any one coolant pipe joint. Automatic self-priming pump internal sealing mechanism for preventing liquid from high leakage from the low pressure area is around the seal ring, the front seal ring mounted on the automatic self-priming pump body, sealing ring installed in the bearing body, when the automatic self-priming pump running through long-term ring wear to a certain degree, and affect the self self control the efficiency of pump and self-priming performance, should give change.
