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Manual

Manual

Manual of ZB series rotary lobe pump:

Diagram

1. Double row ball bearing 2. Mechanical sealing for pump 3. O-shaped sealing washer 4. Pump cover 5. Trefoil pump wheel 6. Pump body 7. Double end studs 8. Cover pressing of bearing 9. Bearing support 10. Gearbox 11. Taper roller bearing 12. Transmission shaft 13. Main transmission shaft 14. Back cover of gearbox 15. Bevel wheel (a pair) 16. Oil seal 17. O-shaped sealing washer

Installation
Because this pump is not equipped with motor, regulating device, baseplate or other accessories additionally, it is hoped that a motor (speed regulating motor is much better) as well as a pair of elastic couplings are properly chosen according to following diagram (installation diagram) and the motor power and max speed limit in the front technical parameter table when installing, then collocate a stainless steel baseplate according to this pump and the central height of selected motor.

Notice when installing:
1¡¢The connection of pump and motor output shaft, first of all, regulate them to horizontal position respectively, make sure they are in the same axis, then install linker, or the parts will be damaged.
2¡¢For this pump belongs to constant volume pump, with fixed exhaust volume in every rotation, in case that the upper working procedure stops while the pump operates still, the pressure of pump will rise endlessly, at last, leakage, damage of parts and other accidents will happen, so effective prevention measures must be taken. Example one: link upper and lower working procedures, when they stop working, stop the pump at the same time. Example two: install security valve and super-pressure circulation system on output pipeline, it will automatically discharge load in case of over pressure.
3¡¢If install control valve on pump, install it on inlet pipeline, the outlet pipeline is improper to install, for it is easy to create misplay and overpressure.
Carry out thorough examination after installing, including firmness of mechanical parts, electric wiring, etc., then rotate pump for 3~5 circles by hand, examine whether there is lock or loose phenomena till normal, then put through electricity and implement test run, stop examining if there is abnormity, delivery to use after everything is okay.

Operation
This pump is convenient and safe to operate, press the button and put through the electrical source to start working, in order to ensure better working of pump, following essentials should be noticed.
1¡¢Before starting the pump: check whether the parts of pump are perfect, valves on inlet and outlet pipelines are opened completely, in a word, the mechanical parts must be perfect and the pipelines must be unblocked.
2¡¢At the time of starting the pump: before starting this pump, equipment of the next working procedure must be started.
3¡¢Pay attention whether the operation is normal or not in the course of operation, stop the pump immediately if there is flow block at the front to the pump or block at the back of the pump, restart it after eliminating the failures.
4¡¢When entirely stop operating, stop the machine one after another according to process flow, that is stop the pump firstly, then stop related equipments.
For any mechanical equipment, daily maintenance is not only reflected on production, it reflected on service life of mechanical equipments even more, so does pump, therefore, following maintenance tasks should be noticed.
1¡¢Sealing element. The sealing element of pump is divided into static sealing and movable sealing, make sure that the sealing washer of static sealing element without nick or scrape, or it will affect sealing effect directly; to movable sealing element, it is affected by many factors such as pressure, corrosion of transported medium, abrasion of granule in medium, etc., (refer to picture 1, part 2) leakage phenomenon will probably take place if there is slight inattention. Stop the machine to examine and repair immediately in case there is leakage, wipe with soft and clean cotton cloth, coat with glycerin, after assembling, try with hands at first, then start the machine to use, replace the parts if it is impossible to repair.
2¡¢Sealing element. The sealing element of pump is divided into static sealing and movable sealing, make sure that the sealing washer of static sealing element without nick or scrape, or it will affect sealing effect directly; to movable sealing element, it is affected by many factors such as pressure, corrosion of transported medium, abrasion of granule in medium, etc., (refer to picture 1, part 2) leakage phenomenon will probably take place if there is slight inattention. Stop the machine to examine and repair immediately in case there is leakage, wipe with soft and clean cotton cloth, coat with glycerin, after assembling, try with hands at first, then start the machine to use, replace the parts if it is impossible to repair.
3¡¢Electric system. The appliances, materials or gases that will destroy insulation performance are forbidden around electrical equipments. Make sure that the electrical equipments are working in dry environment at the same time. Equipped with dampproof establishments if inevitable.
4¡¢Daily maintenance. Carry out effective cleaning to pump with proper washing lotion according to the character of transported material when the machine stops, rinse with clean water to ensure pump¡¯s cleanness.