ZX horizontal self-priming centrifugal pump product overview:
Jicheng ZX self-priming centrifugal pump (the pump). This type of self-priming centrifugal pump pump and other type, because the pump is provided with non-return valve structure of the most simple work; the most reliable; no fault of long working hours, maintenance, convenient use, small volume, light weight, high efficiency, in the design of the special consideration with the same caliber pump, large displacement and high performance.
ZX self suction centrifugal pump in industrial and agricultural production, rescue and relief, such as drainage, fire pump as emergency use efficiency is more prominent. ZX self suction centrifugal pump is widely used in petroleum, chemical, metallurgy, machinery, chemical, food, energy, transportation and other industrial departments of city water supply, can also be used for agricultural irrigation and irrigation. For conveying water or viscosity less than 5 E, the temperature is lower than 80 C physical and chemical properties similar to other liquid water.
- ZX horizontal self-priming centrifugal pump type meaning:
- ZX horizontal self-priming centrifugal pump performance:
Flow rate: 3.2 ~ 550m3/h
Head: 12 ~ 80m
Motor power: 0.75 ~ 132kw
Diameter: 25 ~ 300mm
Suction process: 5 ~ 6.5m
- ZX horizontal self-priming centrifugal pump product use:
ZX type self-priming centrifugal pump is a horizontal self-priming centrifugal pump is suitable for city environmental protection, construction, fire control, chemical, pharmaceutical, dye, brewing, electric power, papermaking, electroplating, petroleum, mining, equipment cooling, tanker unloading etc..
ZX type self-priming centrifugal pump for chemical liquid in water, sea water, and not with acid, alkalinity and general paste containing slurry (medium viscosity less than 100 per cent Perot, solid content is below 30%).
Mounted on the rocker type nozzle, and the water rushed into the air, scattered into small droplets spray, pesticide, nursery, orchard, tea garden, a good machine.
Supporting the use of filter ZX type self-priming centrifugal pump and any type and specification, the most ideal filter to filter the slurry to give the.
- ZX horizontal self-priming centrifugal pump structure:
The characteristics of ZX type self-priming centrifugal pump is simple and reliable in structure, durable. Under normal circumstances, generally do not need to open maintenance. When the fault is found at any time to be excluded. - ZX horizontal suction centrifugal pump structure self explanatory:
ZX type self-priming pump structure of single-stage centrifugal pump adopts the axial liquid. The pump body is composed of a suction chamber, a liquid storage chamber, swirl chamber, liquid return hole, etc. the gas-liquid separation chamber, pump normal starting, impeller suction chamber of the liquid suction pipe and the air suction, and can be fully mixed in the impeller under the action of centrifugal force, the liquid with gas my room to roll edge flow, the formation of 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 a sudden decrease in the flow rate, the lighter gas is separated from the mixture, and the gas continues to rise through the pump body. After the degassing of liquid to the liquid storage chamber, and the reflux hole again into the impeller, gas and impeller sucked from the suction pipe again in a fiend in human shape, high speed rotating impeller role, and flows to the outer edge of the impeller...... As this process goes round and round, the air suction pipe is reduced, until the exhaustion of gas, and the self suction pump and into normal operation process.
A cooling chamber is arranged at the bottom of the bearing body of some pumps. When the bearing is heated, the temperature rise of the bearing is more than 70 degrees, and the cooling liquid can be injected into the cooling chamber through any one cooling liquid pipe joint. Internal prevent liquid pump seal by high pressure leakage from the low pressure area is around the ring, in the pump body before and after sealing ring, sealing ring installed in the bearing body, when the pump running through long-term ring wear to a certain degree, and affect the efficiency of pumps and self-priming performance, should give replacement.
ZX - type self suction type single-stage centrifugal pump maintenance and disassembly:
1 maintenance of the pump should pay attention to several major parts.
A. rolling bearings: when the pump long-term operation, bearing wear to a certain extent, the need for replacement.
B. before the sealing ring, after the seal ring: when the seal ring wear to a certain extent, must be replaced.
C. mechanical seal: mechanical seal in the case of non leakage, the general should not be open to check. If the lower bearing body place of leak serious leakage, should be dismantled for inspection of mechanical seal. Installation of mechanical seal, must handle with care, with the attention of the cleaning, protection of static ring and moving ring mirror, no knock. Because of the mechanical seal and leakage is the main reason for galling to mirror friction. The repairing method can be used for grinding the face of the friction pair to restore the surface of the mirror surface. Another reason for the leakage of mechanical seals is the "O" - shaped rubber sealing ring (or cushion) installed improperly, or deformation of the aging. At this point, it is necessary to adjust or replace the "O" - shaped seal for re assembly.
2 pump disassembly sequence:
A. remove the motor coupling or extrusion.
B. split bearing assembly, check the impeller and radial clearance before opening ring, check the impeller nut loosening.
C. remove the impeller nut and pull out the impeller to check the radial clearance of the impeller and the rear seal ring.
D. loose mechanical seal of the tightening screw, pull out the mechanical seal of the dynamic loop part, check the dynamic and static ring end face fitting situation, check the "O" shaped sealing ring (or cushion) seal.
E. spin out of the coupling of the tightening nut, pull out the coupling.
F. remove the bearing cover, pump shaft and bearing.
When G. is installed in reverse order to carry out the assembly