Basic Info.
Structure
Rotary Vacuum Pump
Exhauster Method
Kinetic Vacuum Pump
Work Function
Pre-Suction Pump
Product Description
2BV series water ring vacuum pump is a single-stage pump with an integral structure-the pump is coaxial. The shaft seal adopts mechanical seal, which has the characteristics of simple structure, simple installation, oil-free, safe and reliable.
2BV series water ring vacuum pump is suitable for pumping out gas and moist steam, the suction pressure can reach 33mbar absolute pressure (97% vacuum degree). Connect the cavitation protection pipe to protect the pump. If the 2BV water ring vacuum pump is equipped with an atmospheric ejector, the suction pressure can reach 10mbar. The ejector can be directly installed on the suction port of the vacuum pump. When used as a compressor, the maximum pressure is 0.26 mbar. MPa (absolute pressure).
2BV series water ring vacuum pumps and compressors are widely used in petroleum, chemical, pharmaceutical, food, sugar industry and other fields. Since the gas compression process is isothermal during the working process, it is not easy to explode when compressing and pumping flammable and explosive gases, so it is more widely used.Product Photos:Working Principle: 2BV water ring vacuum pump as shown in Figure (1), the impeller 3 is eccentrically installed in the pump body, and a certain height of water is injected into the pump when starting, so when the impeller 3 rotates, the water is affected by centrifugal force and is in the pump body. The wall forms a rotating water ring 1, the inner surface of the lower part of the water ring is tangent to the hub, and rotates in the direction of the arrow. The ring forms a closed space. With the rotation of the impeller, the space gradually expands, the gas pressure in the space decreases, and the gas is inhaled from the suction port of the disc. The space is gradually reduced, and the gas pressure in the space is increased. When the pressure is higher than the exhaust port pressure, the gas between the blades is discharged from the disk exhaust port. In this way, every time the impeller rotates, the space between the blades is sucked and exhausted once, and many spaces work continuously, and the 2BV water ring vacuum pump continuously sucks or presses the gas.
The 2BV water ring vacuum pump generates heat during work, which will make the working water ring hot, and part of the water and gas are discharged together. Therefore, during the working process, the pump must be continuously supplied with water for cooling and replenishment. The water consumed in the pump meets the working requirements of the pump.
When the gas discharged by the 2BV water ring vacuum pump is no longer used, a gas-water separator is connected to the exhaust port of the 2BV water-ring vacuum pump. It is discharged from the exhaust pipe, and the remaining water is supplied to the pump through the return pipe for continued use. With the extension of the working time, the temperature of the working water will continue to rise. At this time, it is necessary to supply cold water from the water supply pipe to reduce the temperature of the working water and ensure that the pump can meet the required technical requirements and performance indicators.
When the 2BV water ring vacuum pump is used as a compressor, a gas-water separator is connected to the exhaust port of the pump, and the gas-water mixture is automatically separated after entering the gas-water separator. The gas is transported to the required system by the exhaust pipe and the working water is separated. into the 2BV water ring vacuum pump. When the gas is compressed, the working water is very easy to heat, the water is discharged from the exhaust port of the pump, the temperature will become higher, and the cold water must be continuously supplied by the water supply pipe. In order to supplement the discharged water, it also acts as a cooling function, so that the temperature of the working water will not be too high, so as to ensure the performance of the compressor, meet the technical indicators and meet the process requirements.Structure Description:The structure of 2BV water ring vacuum pump is shown in Figure 2, Figure 3 and Figure 4 2BV vacuum pump consists of pump cover, pump body, disc, impeller, mechanical seal, motor and other parts. The intake pipe and the exhaust pipe are connected to the pump chamber through the suction hole and the exhaust hole on the disc installed on the pump cover, the shaft is eccentrically installed in the pump body, the impeller is fixed on the shaft with a flat key, and the two ends of the 2BV vacuum pump are The gap between the pump body and the disc is adjusted by the pad between the pump body and the disc, the gap between the impeller and the disc on the pump cover is adjusted by the pad between the disc and the pump body, the two ends of the impeller and the disc on the pump cover are adjusted. The gap between them determines the size and limit pressure of the gas lost in the flow from the inlet to the exhaust port in the pump chamber.
The seal of 2BV vacuum pump adopts mechanical seal, and the mechanical seal is installed between the impeller and the pump body. The gap between the impeller and the pump body is determined by the mechanical seal.
A disc is installed on the cover of the 2BV vacuum pump, and the disc is provided with suction and exhaust holes and a flexible exhaust valve. The gas was previously exhausted, reducing the power consumption due to excessive gas pressure, thereby reducing the rate consumption.Product performance and parameters: | Product model | Maximum air volume | Limit Vacuum Degree
mbar(MPa) | Motor power
kW | Explosion-proof grade of motor | Motor Protection Level | Pump speed
r.p.m | Working fluid flow rate
L/min | noise
dB(A) | Weight
kg |
| m3/min | m3/h |
| 2BVC2 060 | 0.45 | 27 | 33mbar
(-0.098MPa) | 0.81 | No explosion proof | IP54 | 2840 | 2 | 62 | 31 |
| 2BVC2 061 | 0.87 | 52 | 1.45 | 2840 | 2 | 65 | 35 |
| 2BVC2 070 | 1.33 | 80 | 2.35 | 2860 | 2.5 | 66 | 56 |
| 2BVC2 071 | 1.83 | 110 | 3.85 | 2880 | 4.2 | 72 | 65 |
| 2BVC2 060-Ex | 0.45 | 27 | 1.1 | - | IP55 | 2840 | 2 | 62 | 39 |
| 2BVC2 061-Ex | 0.86 | 52 | 1.5 | 2840 | 2 | 65 | 45 |
| 2BVC2 070-Ex | 1.33 | 80 | 3 | 2860 | 2.5 | 66 | 66 |
| 2BVC2 071-Ex | 1.83 | 110 | 4 | 2880 | 4.2 | 72 | 77 |
| 2BVC5 110 | 2.75 | 165 | 4 | No explosion proof | IP54 | 1440 | 6.7 | 63 | 103 |
| 2BVC5 111 | 3.83 | 230 | 5.5 | 1440 | 8.3 | 68 | 117 |
| 2BVC5 121 | 4.67 | 280 | 7.5 | 1440 | 10 | 69 | 149 |
| 2BVC5 131 | 6.67 | 400 | 11 | 1460 | 15 | 73 | 205 |
| 2BVC5 161 | 8.33 | 500 | 15 | 970 | 20 | 74 | 331 |
| 2BVC6 110-EX | 2.75 | 165 | 4 | dIIBT4 | IP55 | 1440 | 6.7 | 63 | 153 |
| 2BVC6 111-EX | 3.83 | 230 | 5.5 | 1440 | 8.3 | 68 | 208 |
| 2BVC6 121-EX | 4.66 | 280 | 7.5 | 1440 | 10 | 69 | 240 |
| 2BVC6 131-EX | 6.66 | 400 | 11 | 1460 | 15 | 73 | 320 |
| 2BVC6 161-EX | 8.33 | 500 | 15 | 970 | 20 | 74 | 446 |
2. Vacuum distillation - milk factory, foodstuff processing, chemical industry, the paper plasma factory.
3. Vacuum disinfection - hospital, infirmary, the laboratory.
4. Molding - Plastic, the polyethylene, rubber, tire manufacture etc.
5. Rebirth the compressed air - the paper plasma, iron and steel, automobile, glasses, chemical industry.
1. The motor is directly connected to the design, which saves space, is easy to install, and is easy to maintain.
2. All imported mechanical seals are used as standard configuration.
3. All are equipped with cavitation protection pipe interface. If working under extreme pressure, opening the cavitation protection pipe interface (or connecting with the separator) can eliminate the cavitation sound while ensuring the suction effect to the greatest extent to protect .
4. All 2BV series are equipped with stainless steel impellers as standard, and all 2BV2 series are equipped with stainless steel discs/impellers. High strength, durability, and improved corrosion resistance of the pump. If the overcurrent parts are all made of stainless steel, it can work in a more severe environment.
5. The unique flexible exhaust port design will not produce over-compression, which ensures that the 2BV series has the best efficiency within its performance range.
6. All Y2 series motors are used, the protection class is IP54, IP55 (generally IP44), and the insulation class is F-class insulation (generally, B-class insulation)
7. All use NTN or NSK imported bearings
8.2BV series water ring vacuum pump can realize that all flexible seals are PTFE, which can greatly prolong the service life of vacuum pump under harsh working conditions.
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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