Multi-stage pump in Shanghai

multi-stage pump works

information

lbbfa.cn / bs.asp? ig, = 73

4, multi-stage pump shaft seal soft packing seal, seal the letter, packing, retaining ring, composed mainly by the water segment and the end of the cover. D-type pump water seal water pressure water from the pump. DG pump water seal water from an external water supply.

(10), multi-stage pump to stop using it, close the valve, pressure gauge, and then stop the motor.

(2), joined to the bearing body bearing lubrication oil, and observe the oil level in oil the subject of the centerline, the lubricant should be promptly replaced or supplemented.

3, multi-stage pump bearing is bearing body, bearings and bearing covers, bearing with grease or thin oil lubrication.

the DL-type vertical multistage centrifugal pump

(14), multi-stage pump in the winter season, after stopping the pump lower part of the water plug unscrew the media net. To prevent cracking.

lbbfa.cn / bs.asp? ig, = 59

lbbfa.cn / bs.asp? ig, = 61

lbbfa.cn / bs.asp? ig, = 72

(6), multi-stage pump long-term disabled, the need to pump all apart, dry water, rotating parts and junction coated with grease installed.

(7), try to control the range indicated by the multi-stage pump flow and head on the plate, to ensure that the operation of the multi-stage pump in the maximum efficiency point, in order to get the most energy-saving effect.

W-type water jet

⑼, such as multi-stage pump with unusual sounds should be immediately stopped to check the reason.

In summary, multi-stage pump by changes in the pump chamber volume to achieve suction, compression and exhaust, so it can change the volume of the centrifugal pump.

GDL, type vertical pipeline multi-stage pump

lbbfa.cn / bp.asp? Ie = 7

multi-stage pump and the difference of the single-stage pump

Multi-stage pump structure

1, multi-stage pump stator part of the main from inhalation of segments, the middle of the spit segments and guide vanes and other components, tighten bolts paragraphs clamping constitute a studio. The general level of D-type pump suction, spit straight up; for oilfield water injection pump import and export vertically upward. DG multi-stage pump, inlet vertically upward.

(11), multi-stage pump in the first month of work by 100 hours, replacement of oil after every 500 hours, the oil once.

's (8), multi-stage pump during operation, the bearing temperature can not exceed the ambient temperature of 35C, the maximum temperature not exceeding 80C.

multi-stage pump is mainly composed by stator, rotor, bearings and shaft seal four major:

multi-stage pump can be used in many industrial sectors of the petroleum, chemical, mechanical, mining, light industry, medicine and food. In many of the industrial production process, such as vacuum filtration, vacuum diversion world pie network information , vacuum feed, vacuum evaporation World steel pipe network editing , vacuum concentration, vacuum resurgence and vacuum degassing, multi-stage pump has been widely used. Can be exhausting flammable, explosive gas, can also be pumping dust, water, gas, and therefore, the water ring pump used increasingly.

TSWA horizontal multistage pump

(4), turn off the outlet pipe road gate valve and outlet pressure gauge and imports vacuum gauge.

GDLF Vertical stainless steel multistage pump

2, single-stage pump impeller pump only a maximum head of 125 m.

lower impeller 0 ° as a starting point, the impeller in a small cavity volume 180 ° rotation from small to large and connected with the side surface of the suction mouth, then the gas is inhaled when aspirated ending cavity and the suction port isolation; when the impeller continues to rotate, the small cavity from large to small, so that the gas is compressed; When the small chamber with the exhaust port is connected, the gas was discharged from the pump outside.

(12), multi-stage pump often to adjust the packing gland, packing indoor drip normal (to drip out is appropriate).

D-type multi-stage pump

(5), jog motors, take a look at motor rotation is correct.

2, multi-stage pump rotor part of the main shaft, impeller, the balance plate and bushings, and other components. Axial force balance disc balance.

(3), unscrew the multi-stage pump body, water diversion drain plug, filling water diversion (or arguments pulp).

multi-stage pump is a kind of centrifugal pumps, but also rely on the rotation of the impeller for the centrifugal force, and thus material. Be the density of the gas to be drawn to the scope of work of the mechanical vacuum pump, thereby gradually to obtain a high vacuum.

lbbfa.cn / bs.asp? ig, = 60

Shanghai

(1), check the multi-stage pump tubing and junction with or without loosening. Rotate the multi-stage pump, take a look at multi-stage pump is flexible.

(15), start the motor, when the normal operation of the multi-stage pump, open the outlet pressure gauge and imports vacuum pump depending on the display to the appropriate pressure, and gradually open the valve, and check the motor load.

in the multi-stage pump is equipped with the right amount of water as the working fluid. When the impeller rotates clockwise, the water impeller thrown around, due to centrifugal force, the water formed a closed circle of a decision in the shape of the pump chamber, similar to such as thickness. The next part of the surface of the water ring is exactly tangent to the impeller hub and the inner surface of the upper part of the water ring just contact with the blade tip (actually the blades in the water ring insertion depth). Form a crescent-shaped space between the impeller hub and the water ring, while this space be divided into by the impeller and leaves an equal number of small cavities.

care and maintenance of the multi-stage pump

(13), regular inspection of multi-stage pump shaft sleeve wear, greater wear and tear should be replaced.

, multi-stage pump turn the pump is driven directly through a flexible coupling prime mover. Side from the prime mover to look at the pump, the pump rotates clockwise, DG pump is a horizontal single-stage centrifugal pump suction multi-stage section. For the transport of water (the heteroatom quality is less than 1%, the particle size of less than 0.1mm), or physical and chemical properties similar to water, other liquids. D-type pump transmission medium temperature less than 80 ° C, applicable to mine drainage, oil field water, factories and urban, drainage and other occasions. The oil injection pump corrosive medium, the pump using a different material. DG pump transmission medium temperature less than 105 ° C, for a variety of boiler feed water.

1, multi-stage pump refers to two or two above the impeller pump, the maximum lift can be over 125 meters; multi-level pump in the case of single-stage pump head needs to be equipped with two motors, by increasing the impeller number is equipped with four motors, which can increase pump life and reduce unit noise, but the multi-stage pump maintenance relative to a single-stage pump difficult to say.

pump actually need to lift less than 125 meters, according to the pumping station area, the pump price (multi-stage pump is generally higher than the single-stage pump price), and other factors to take into account the selection a single-stage pump or a multi-stage pump. As technology advances, the single-stage impeller of the pump by increasing the speed of the pump to increase the pump head, instead of stainless steel multi-stage pump.