Basic Info.
Structure
Rotary Vacuum Pump
Exhauster Method
Kinetic Vacuum Pump
Work Function
Pre-Suction Pump
Product Description
2BE water ring vacuum pump and compressor are high-efficiency and energy-saving products developed by our factory on the basis of years of scientific research achievements and production experience, combined with advanced technology of imported products. It is usually used to pump gases that do not contain solid particles, are insoluble in water, and are not corrosive to create vacuum and pressure in closed containers. By changing the structural material, it can also be used to pump corrosive gas or use corrosive liquid as working fluid. Widely used in paper making, chemical, petrochemical, light industry, pharmaceutical, food, metallurgy, building materials, stone tools, coal washing, mineral processing, fertilizer and other industries. During the working process, the pump compresses the gas in an isothermal state, so it can pump flammable and explosive gases. By changing the structural material, it can also pump corrosive gases and corrosive liquids as working fluids.
2BE water ring vacuum pump adopts single-stage single-acting structure, which has the advantages of simple structure, convenient maintenance, reliable operation, high efficiency and energy saving. Compared with the SK, 2SK, SZ series water ring vacuum pumps widely used in China, it has significant advantages such as high vacuum degree and low power consumption, and is an ideal substitute for SK, 2SK, SZ series water ring vacuum pumps.Product Photos:Working Principle: The water ring vacuum pump is a positive displacement pump, which uses the change of volume to achieve the purpose of suction and exhaust.
As shown in Figure 1, the impeller is eccentrically installed in the pump body, and the eccentric distance is e. When the impeller rotates (before the pump starts, a small amount of water should be injected into the pump), the water is affected by the centrifugal force, and the water on the pump body wall A rotating water ring is formed on the upper part of the water ring, and the inner surface of the upper part of the water ring is tangent to the hub and rotates in the direction of the arrow. During the first half-turn, the inner surface of the water ring gradually separates from the hub, so a space is formed between the impeller blades and gradually expands, so that Just when the air is sucked in at the suction port, in the process of the second half rotation, the inner surface of the water ring gradually approaches the hub, the space volume between the blades decreases, and the space volume between the blades changes once, and the water between each blade seems to be The piston reciprocates once, and the pump continuously sucks the gas.
Structure Description: The structure of the pump is shown in Figure 2.
This series of pumps adopts the structure of single-stage action. The pump consists of pump body, impeller, front and rear cover (two pieces), front and rear distributor, shaft, front and rear bearing parts, valve plate parts, etc. The shaft is eccentrically installed in the pump body, the impeller and the shaft are in an interference fit, the total clearance between the two ends of the pump is adjusted by the pads between the pump body and the distributor, and the single-sided clearance is first determined by the front-end positioning during assembly, and the impeller The size of the gap with the end face of the distributor has a great influence on the gas leakage (leakage from the exhaust cavity to the suction cavity), so the assembly must be guaranteed. For pumps with an impeller diameter greater than 500mm, the single-sided gap should be controlled at 0.25 ~0.35, and the total clearance at both ends is between 0.5 and 0.7.
The packing is installed in the end caps, and the sealing liquid enters the packing chamber through the holes in the end caps to cool the packing and strengthen the sealing effect.
When a mechanical seal is used, the mechanical seal is installed in the packing chamber cavity, and the packing gland is replaced with a mechanical seal gland.
There are suction and exhaust crescent holes and elliptical exhaust holes on the front and rear distributors, and valve plate components are installed. The function of the valve plate is that when the gas pressure between the impeller blades reaches the exhaust pressure, the crescent discharge The gas port discharges the gas before, reducing the power consumption due to excessive gas pressure.Product performance and parameters: | Model | Lowest absolute suction pressure
hPa | Ultimate pressure with first stage atmospheric ejecto
hPa | Maximum
air volume
m3/min | Rotating
speed
r/min | maximum
shaft
power
kW | motor
Power
kW | inhale
and
discharge
caliber |
2BEA
103-0 | 33 | 18 | 5 | 1300 | 7 | 7.5 | 65 |
| 6 | 1450 | 8 | 11 |
| 6.5 | 1625 | 10 | 11 |
| 7 | 1750 | 11 | 15 |
2BEA
153-0 | 33 | 18 | 7.5 | 1300 | 11 | 15 | 100 |
| 9 | 1450 | 14 | 15 |
| 11 | 1625 | 16 | 18.5 |
| 12 | 1750 | 19 | 22 |
2BEA
203-0 | 33 | 18 | 16 | 880 | 25 | 30 | 125 |
| 19 | 980 | 30 | 37 |
| 21 | 1100 | 36 | 45 |
| 22 | 1170 | 40 | 45 |
2BEA
253-0 | 33 | 18 | 30 | 590 | 37 | 45 | 150 |
| 35 | 660 | 45 | 55 |
| 40 | 740 | 55 | 75 |
| 44 | 820 | 65 | 90 |
2BEA
303-0 | 33 | 18 | 47 | 530 | 58 | 75 | 200 |
| 52 | 590 | 67 | 75 |
| 60 | 660 | 80 | 90 |
| 64 | 740 | 90 | 110 |
2BEA
353-0 | 33 | 18 | 68 | 490 | 91 | 110 | 250 |
| 75 | 530 | 105 | 132 |
| 85 | 590 | 126 | 160 |
| 95 | 660 | 154 | 185 |
2BEA
400-0 | 33 | 18 | 80.8 | 330 | 102 | 132 | 300 |
| 87.6 | 372 | 116 | 160 |
| 99.0 | 420 | 136.5 | 185 |
| 112.3 | 472 | 168 | 200 |
| 126 | 530 | 212 | 250 |
2BEA
420-0 | 33 | 18 | 87.6 | 372 | 116 | 160 | 300 |
| 99.0 | 420 | 136.5 | 185 |
| 112.3 | 472 | 168 | 200 |
| 126 | 530 | 212 | 250 |
| 140 | 595 | 238 | 280 |
Note
1: The basic parameters are the values under the conditions that the temperature is 20°C (air),the inlet water temperature is 15°C, the exhaust pressure is 1013hPa, the relative air humidity is 50%, and the value under the condition of the specified speed r/min.
2: Each pump is allowed to have several matching speeds, and the pumping volume and shaft power correspond to them. |
1.This series of water ring vacuum pumps are used to pump air or other gases that are non-corrosive, insoluble in water and free of solid particles, so as to form a certain vacuum in the sealed container. A small amount of liquid is allowed to be mixed with the inhaled gas. The recommended working range of the pump is -0.04MPa-0.09MPa.
2. This type of vacuum pump is mainly used in chemical, petrochemical, light industry, pharmaceutical, metallurgy, building materials, electrical appliances, food, coal washing, mineral processing, fertilizer and other industries.
3. When equipped with an explosion-proof motor, it can pump flammable and explosive gases. When the pump body is made of corrosion-resistant materials, it can pump certain corrosive gases.Product Features: 1. High reliability
Since this type of pump adopts a firm shrink fit between the shaft and the impeller hole and the safety factor of the shaft and bearing is large, it has a very high reliability. Using welded impeller, the hub and blades are all processed, which fundamentally solves the problem of dynamic balance, with balanced operation and low noise.2. Easy maintenance
Since inspection holes are provided on both end caps of the pump (remove the pressure plate), the internal structure or clearance can be easily viewed, and the exhaust valve plate can be replaced quickly and easily. In addition, the replacement of the packing can also be carried out without removing the pump cover, which is very convenient.3. High efficiency and energy saving
This series of water ring pumps adopts the system optimization design, the main components such as distribution plate and impeller are designed with reasonable structure and high efficiency. In addition, this type of water ring pump adopts the design of flexible exhaust valve, which avoids excessive gas compression in the process of gas compression. Compression reduces energy consumption by automatically adjusting the exhaust area. So as to finally achieve the best operating efficiency.4. Adapt to shock loads
The blade is formed by one-time stamping of steel plate, and the profile is better. The welded impeller is heat treated as a whole, the blade has good toughness, and its impact resistance and bending resistance are fundamentally guaranteed to adapt to impact loads.
Company Profile:
Address:
Xiaodian Industrial Park, Baita Town, Boshan District, Zibo City, Shandong Province
Business Type:
Trading Company
Business Range:
Industrial Equipment & Components
Company Introduction:
Shandong Zhongbeng Power Equipment Co., Ltd. is located in Zibo City, Shandong Province, which is known as the "pump capital" of China. The company takes the lead in science and technology, adheres to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. The products now have been exported to India, Pakistan, Russia, South Africa, Vietnam, Thailand and other countries.
Our products are widely used in petroleum, chemical industry, coal mine, metallurgy, electric power, food, medicine, paper making, textile, heating, refrigeration, urban water supply and drainage and other industries. The main products are: Vacuum pump, diesel engine pump set, diesel generator set, centrifugal pump, submersible sewage pump, chemical pump, corrosion-resistant pump and complete water supply equipment, etc. There are more than 20 series, with more than 1, 000 specifications for customers to choose from.
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