Vertical axial flow pump is a guide vane axial flow pump. Submersible axial flow pump series products are effectively developed according to the domestic market demand. They have the advantages of reliable operation, fast start, compact structure and small floor area. It is widely used in electric power engineering. The manufacturer of hydraulic axial flow pump will introduce the axial flow pump and maintenance points in detail below.
Manufacturer of hydraulic axial flow pump
Disassembly and assembly of axial flow pump:
The disassembly, assembly and installation of the pump are the reverse. Clean the inner hole and groove of the rotating shaft and lifting pipe with gasoline, and apply anti-rust agent.
2. Disassembly and assembly of pump housing
① Loosen the drainage shell; ② The inlet pipe of the centrifugal impeller collides with the short end of the cone sleeve, loosen the cone sleeve and the centrifugal impeller, and remove the cone sleeve and the centrifugal impeller; ③ Remove the first and middle drainage shells; ④ Repeat the process.
Remove all drainage housings. After the axial flow pump housing is dissolved, check whether the parts are damaged. If the damage is serious, replace it.
overhaul
① After the pump casing is disassembled, check the damage of the centrifugal impeller. In case of serious damage, disassemble and replace it; If used only after slight polishing. Check the seal ring of the centrifugal impeller and consider whether to disassemble and replace it according to the damage.
② If the spherical surfaces of the drainage shell and the centrifugal impeller are damaged, they should be recalibrated to ensure that they are consistent with the mating surface of the centrifugal impeller. In addition, the overflow channel of the drainage shell should be checked and cleaned regularly.
③ If the blade shaft tenon has stainless steel parts, it should be inspected. If it has fallen off, it should be removed and replaced.
④ Check the guide roller bearing in the drainage shell and consider whether to replace it according to the damage.
⑤ Check whether the cone sleeve is damaged. If it is damaged, remove it and replace it.
Regular maintenance of axial flow pump
The maintenance period of axial flow pump is 6 months to 1 year. After one year of operation of the axial flow pump, if the generator unit operates stably, has small vibration, and the ammeter reading is normal, the maintenance period can be moderately increased, but not more than three years. If the operation is not more than one year, but the vibration of the generator unit is severe, consider whether the guide roller bearing is forced to be damaged. At this time, the damaged parts shall be properly closed for inspection, disassembly and replacement. Timely check the sand content in the sewage inspection well and solve the problem of well cleaning.
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