High-temperature nitric acid pump assembly and disassembly

the high-temperature nitric acid pump disassembly sequence:

1. Remove the nitric acid pump is put on the water pump body fluid tube wall and put the suspension liquid pipe plugging and put a net and suspension liquid in the pump in the oil storage room. Such as introduction of liquid seal line should also be removed.

      2. Remove the pump body bracket the connecting bolt, among the middle bracket, suspension parts, sealing parts, etc all rotor components from the pump body ( Before that should be down the middle of the lengthened coupling connection.

      3. Loosen the impeller nut, remove the impeller and the key.

      4. The pump cover, together with the shaft sleeve, mechanical seal end cover, and mechanical seal assembly together take off from the shaft. Don't make the collar should be paid attention to the relative sliding and pump cover, and then remove the mechanical seal end cover, remove the mechanical seal, together with the shaft sleeve and the shaft sleeve and mechanical seal apart again. If it is a soft packing seal, can be removed from the pump cover collar first, then progressive remove the packing gland, packing, and packing ring, etc. Structure of the special mechanical seal, attention should be paid to the different ways to tear open outfit.

      5. Remove the middle bracket and suspension bracket.

      6. Remove the pump coupling and keys.

      7. Remove the dust suspension at the ends of the plate and bearing of the front and back cover, then the shaft together with the bearing from suspension in the body.

      8. Disassemble the bearing and shaft.

high-temperature nitric acid pump assembly:

the pump assembly sequence can largely be carried out in accordance with the disassembly sequence in the opposite direction. But when the assembly should pay attention to check the sealing gasket should be in good condition.