2BE water ring vacuum pump

The 2BE water ring vacuum pump is divided into 2BEA and 2BEC types, covering the entire range of suction capacity from 210m 3/h to 37000m 3/h and suction pressure from 16000pa to 3300pa. The compression of gas by this pump operates at isothermal conditions, so in addition to pumping common gases such as air and water vapor, it can also pump flammable and explosive gases. By improving the material of the body, it is also possible to extract corrosive gases from the chemical industry or use corrosive solvents as circulating fluids. Widely used in heavy industries such as petroleum, pharmaceuticals, fertilizers, daily chemicals, smelting, coal washing, mineral processing, as well as the chemical industry. It can also be used in light industries such as food, construction, and textiles. It is currently one of the most energy-efficient and advanced water ring vacuum pumps.

The 2BE water ring vacuum pump adopts a single-stage single action structure, which has the advantages of simple structure, convenient maintenance, and reliable operation. Compared to SK water ring vacuum pumps and 2SK water ring vacuum pumps, which have higher circulation in the market, they have the characteristics of high vacuum degree and lower motor power under the same pumping volume. It is an ideal substitute for SK, 2SK and other water ring vacuum pumps.

Characteristics of 2BE water ring vacuum pump

1. Effective Energy Saving: This series of pumps adopts a system optimized design and a flexible exhaust valve design to avoid over compression in gas compression. By adjusting the exhaust area, energy consumption is reduced, ultimately achieving optimal operating efficiency

2. Easy maintenance: Due to the inspection holes provided on both ends of the pump cover (by removing the pressure plate), the internal structure or clearance can be easily inspected, and the exhaust valve plate can be quickly and conveniently replaced. In addition, the replacement of the packing can also be carried out without removing the pump cover, which is very convenient.

3. High reliability: Due to the use of a secure hot fit interference fit between the shaft and impeller holes, as well as a high safety factor for the shaft and bearings, this type of pump has a considerable level of reliability.

The 2BE water ring vacuum pump produced by our company also has the following characteristics.

1. The impeller is fully balanced for stable operation and minimal vibration.

2. 2Cr shaft sleeves are added and selected at the sealing points of the entire system to ensure long service life, simple maintenance, and low cost.

3. All castings are made of resin sand technology, which has a better surface heat dissipation effect.

Material selection of 2BE water ring vacuum pump

1. Pump casing material: divided into gray cast iron, ductile iron, welded steel plate, stainless steel material, etc.

2. Transmission mode: The power transmission mode is divided into direct transmission and belt transmission.

3. Sealing method: Sealing methods are divided into packing seal and mechanical seal.

4. Impeller material: Stamped blade welding, cast iron, ductile iron, stainless steel casting, stainless steel welding, etc.

Working principle of 2BE water ring vacuum pump

The water ring vacuum pump belongs to the positive displacement pump, which uses changes in volume size to achieve the purpose of suction and exhaust.

As shown in Figure 1, the impeller is eccentrically installed in the pump body with an eccentricity of e. When the impeller rotates (before starting the pump, a small amount of water should be injected into the pump), the water is subjected to centrifugal force and forms a rotating water ring on the pump body wall. The upper inner surface of the water ring is tangent to the hub and rotates in the direction of the arrow. During the first half of the rotation, the inner surface of the water ring gradually separates from the hub, forming a space between the impeller blades and gradually expanding. In this way, air is sucked in at the suction port. During the second half of the rotation, the inner surface of the water ring gradually approaches the hub, and the space volume between the blades decreases. The space volume between the blades changes once, and the water between each blade is like a piston. Repeating once, the pump continuously draws in gas.