Water ring vacuum pump and use - how to work

the principle of water ring vacuum pump:

impeller, filling the right amount of water as the working fluid in the water pump body. When the impeller rotates, impeller to jilt to jilt to water. Due to the effect of centrifugal force, according to the shape of the pump chamber, water formation thickness is roughly equal to the closing of the ring. The inner surface of the water ring at the bottom right wheel tangent with the impeller, and the inner surface of the upper water ring just contact with the tip of the blade ( In fact, the blade has certain insertion depth in water ring) 。 At this point, the impeller wheel and crescent formed between water ring space, on the side of the space between two adjacent vanes in a crescent-shaped space continuous increase, through continuous suction inlet gas; In another side crescent-shaped space between adjacent blades falling space, suction gas compression, pressure increasing, when the pressure is greater than the external pressure, gas through the vent. In the process of the continuous operation of the pump, the suction, compression and continuous discharge process for vacuum.

water ring vacuum pump use note:

1. Connection pipe, it is strictly prohibited inside the pump using slag entering.

2。 circulation of water pipe connected to the middle and bottom of the tank.

3, it is strictly prohibited in the extreme pressure ( The screams) Work, at this time should be adjusted on the pump body bleed valve.

4。 Water pumps are not allowed to work continuously, otherwise it will damage the mechanical seal.

5, and should not be filled with water in the pump chamber under the state of start the pump, to prevent excessive torque caused by the main shaft fracture

6. Winter when the pump is stopped, indoor water pump should be in time, to prevent frost crack.

7。 When hard water as working fluid, 10% of the industrial boiler with oxalic acid or cleaner should immerse into the pump chamber and cleaned on a regular basis.

water ring vacuum pump vane damage types are mainly leaf damage, corrosion, leaf blade crack or cavitation.

1。 Blade fracture

this is mainly due to the solid card at the pump, such as metal and rubble. When the impeller rotates, it will run into solid block or got stuck solid, so as to damage the blade. In addition, due to the stress concentration of blade root and the small cavity of the pump in the gas and liquid pressure caused by fatigue damage. Blade damage of impeller should be replaced in a timely manner, and find out the reason, take corresponding measures, If the impeller damage due to lack of strength, can increase leaf number) 。

2。 Leaf blade crack

it usually occurs in the root of the blade. Most of them are fatigue cracks, and some is caused by a blade wheel bolt size and the great differences of the casting crack. Has a crack impeller should be replaced, in order to avoid damage the blade, cause an accident.

3, blade wear

if the impeller corrosion due to transport corrosive gas and liquid, or liquid ring to solid impurities and surface friction and damage, with the impeller or impeller due to cavitation damage, if the situation is serious, should be replaced. If the damage is not severe, can use the repair welding repair. Repair welding, the impeller can be heated to 600 ℃, then carries on the repair welding. If increase the dimension of the welding torch, after repair welding must use rasp leaf or lathe processing into the original size, otherwise it will affect the performance of the original.

water ring vacuum pump of the scope of application:

it is mainly used to remove the air and the other has certain corrosion resistance, insoluble in water and allow gas containing a small amount of dust. Widely used in food, textile, medicine, chemical, mining and other industries of vacuum evaporation, concentration, feed, dehydration, drying process. This series of water pump adopts mechanical seal structure, the structure is compact, use reliable, instant noodles, easy installation and removal, simple maintenance. It is especially suitable for large displacement, low vacuum degree of vacuum industry.

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