Basic Info.
Structure
Rotary Vacuum Pump
Exhauster Method
Kinetic Vacuum Pump
Work Function
Pre-Suction Pump
Product Description
2SK series two-stage water-ring vacuum pump and 2SK-P1 series two-stage water-ring vacuum pump-atmospheric jet pump unit are vacuum pumps and The vacuum unit has the characteristics of high vacuum degree, high pumping speed in high vacuum range, compact structure, reliable use and convenient assembly and disassembly.
The unit is composed of 2SK water ring vacuum pump and one-stage atmospheric jet pump. Users can use the two-stage water-ring vacuum pump alone according to their needs.
2SK water ring vacuum pump or unit is used to pump air or other gas insoluble in water, free of solid particles and non-corrosive, so as to form a certain degree of vacuum in a closed container. It is suitable for light textile, food, metallurgy, chemical industry. It is used in vacuum evaporation, vacuum concentration, vacuum resuscitation, vacuum drying, vacuum smelting and other processes in industrial sector.Product Photos:Working Principle: The working principle of the 2SK water ring vacuum pump is shown in Figure 1. The impeller (5) is eccentrically installed in the pump body (3). When the impeller rotates, the water is thrown around by the centrifugal force. A rotating water ring (6) is formed between the impellers. The inner surface of the upper part of the water ring is in contact with the impeller hub. When the impeller rotates clockwise, in the process of the first half rotation, the inner surface of the water ring gradually separates from the hub, and the cavity formed between the adjacent two blades gradually increases. , the pumped gas passes through the pump inlet pipe (4), and is continuously sucked into the cavity through the crescent-shaped suction hole (7); during the second half-turn, the inner surface of the water ring gradually approaches the hub, and the space between the two adjacent blades The cavity is gradually reduced and the gas is compressed, so the pressure is continuously increased. When the pressure is increased to be greater than the external pressure, the gas is discharged, so that the gas in the sealed container is continuously drawn away to form a certain vacuum. Figure 1 Working principle diagram - Exhaust pipe 2. Air outlet 3. Pump body 4. Intake pipe 5. Impeller 6. Water ring 7. Suction hole
The atmospheric jet vacuum pump is a jet pump, and its working principle is briefly described as follows: Due to the action of the 2SK water ring vacuum pump, the pumped container forms a certain pre-vacuum. When it is close to the ultimate vacuum of the pump, the atmospheric pump is turned on. At this time, The pressure difference between the outside atmosphere (or pressurized gas) and the intake pipe is very large. Under the action of this pressure difference, the atmosphere (or gas) is rapidly drawn into the suction pipe. After passing through the nozzle of the atmospheric pump, the airflow speed is further increased, so The pressure drops rapidly so that a relatively high vacuum (apparently higher than the pump's ultimate vacuum) is created in the nozzle, which continues to draw the gas being pumped into the pump.Structure Description: Figure 2 Structural diagram of two-stage water ring pump with air pumping capacity above 1.5m3/min (2SK-1.5)
The structure of the 2SK water ring vacuum pump with an air extraction capacity of 1.5m3/min or more is shown in Figure 2. The long and short impellers 17 and 16 are fixed on the shaft 2 with keys, the middle of the two impellers is positioned with a shaft sleeve 20, and locked with a garden nut. It constitutes the entire rotor part, and is eccentrically installed in the pump body, supported on two single-row radial ball bearings, and the rotor part is connected with the motor shaft by a coupling 18, so that it rotates at the same speed with the motor, and it is long. The impeller 17, the long pump body 9 and the suction part form a high vacuum stage, the short pump body 5, the short impeller 16 and the discharge part form a low vacuum stage, and the exhaust port of the high vacuum stage and the suction port of the low vacuum stage are connected by a connecting pipe ( 2SK-1.5 without this connecting pipe) becomes a two-stage series, the two stages are separated by an intermediate wall (A) 7 and an intermediate wall (B) 6, there are exhaust holes on the intermediate wall (A), and the intermediate wall (B) There is a suction port on the top. Figure 3 Structure diagram of 2SK-0.4, 2SK-0.8 two-stage water ring vacuum pump The structure of 2SK-0.4, 2SK-0.8 two-stage water ring vacuum pump is shown in Figure 3, and its high and low vacuum stage structure is basically the same as that of the pump shown in Figure 2 (no connecting pipe). Using a special extended shaft motor, the long and short impellers are fixed on the shaft with keys, but they can be floated axially and eccentrically placed in the long and short pump bodies.
The seals at both ends of the 2SK water ring vacuum pump use oil-impregnated asbestos packing or mechanical seals.
One end of the high vacuum stage has a water inlet hole, from which the supplementary water enters the long pump body of the high vacuum stage, and the supplementary water of the low vacuum stage is discharged from the high vacuum stage. (2SK-12, 2SK-20, 2SK-30 low vacuum level make-up water is also supplied from the water supply pipe, but the amount should be adjusted through the valve). The high and low vacuum stages are firmly connected together by tension bolts. Product performance and parameters: 2SK-Tow Stage Water Ring Vacuum Pump and 2SK-P1 Tow Stage Water Ring Vacuum Pump-Gas Jet Vacuum Machinery technical rules are illustrated in Chart 1 and Chart 2Chart 1| Type | Capacity | Pressure limits
Mpa(mmHg) | Power
KW | Speed
r/min | Supplying capacity
L/min | Diameter |
| Max | Suction pressure=-0.093Mpa |
| 2SK-0.4 | 0.4 | 0.25 | -0.096(-725) | 2.2 | 2860 | 3~5 | G1′′ |
| 2SK-0.8 | 0.8 | 0.5 | -0.096(-725) | 3 | 2880 | 5~8 | G1′′ |
| 2SK-1.5 | 1.5 | 0.9 | -0.097(-730) | 4 | 1440 | 10~15 | φ40 |
| 2SK-3 | 3 | 2 | -0.098(-735) | 7.5 | 1440 | 15~20 | φ40 |
| 2SK-6 | 6 | 4 | -0.098(-735) | 15 | 1460 | 25~35 | φ70 |
| 2SK-12 | 12 | 8 | -0.098(-735) | 22 | 970 | 40~50 | φ100 |
| 2SK-20 | 20 | 14 | -0.098(-735) | 37 | 740 | 60~80 | φ125 |
| 2SK-30 | 30 | 20 | -0.098(-735) | 55 | 740 | 70~90 | φ125 |
| Model | Capacity m3/min | Pressure limits
MPa(mmHg) | Power
KW
| Speed
r.p.m | Supplying capacity
L/min |
Suction pressure
-0.093MPa
(-700mmHg) | suction pressure
-0.097MPa
(-730mmHg) | suction pressure
-0.099MPa
(-750mmHg) |
| 2SK-0.4P1 | 0.28 | 0.24 | 0.2 | -0.099(-750) | 2.2 | 2840 | 3~5 |
| 2SK-0.8P1 | 0.56 | 0.48 | 0.4 | -0.099(-750) | 3 | 2880 | 5~8 |
| 2SK-1.5P1 | 1.05 | 0.9 | 0.75 | -0.099(-750) | 4 | 1440 | 10~15 |
| 2SK-3P1 | 2.1 | 1.8 | 1.5 | -0.099(-750) | 7.5 | 1440 | 15~20 |
| 2SK-6P1 | 4.2 | 3.6 | 3 | -0.099(-750) | 15 | 1450 | 25~35 |
| 2SK-12P1 | 8.4 | 7.2 | 6 | -0.099(-750) | 22 | 970 | 40~50 |
| 2SK-20P1 | 14 | 12 | 10 | -0.099(-750) | 45 | 740 | 60~80 |
| 2SK-30P1 | 21 | 18 | 15 | -0.099(-750) | 55 | 740 | 70~90 |
1.The performance standard in chart means the performance standard on the condition of following situation.- Atmosphere pressure:0. 1013Mpa (760mmHg)
- Water tempreture:15ºC
- Air tempreture:20ºC
- The relative humidity 70%
2.Supplying water capacity: value of inlet pressure -0.05Mpa(-400mmHg)
3.Performance allowed uncertainty: ±10%Product Application:1. 2SK water ring vacuum pump is used to pump air and other gases that are non-corrosive, insoluble in water and free of solid particles, so as to obtain a higher vacuum in a closed container.
2. 2SK water ring vacuum pump is suitable for working conditions where the suction pressure is lower than -0.08mpa. 2sk series water ring water ring pumps are suitable for working conditions where the suction pressure is lower than -0.096mpa.
3. 2SK water ring vacuum pumps are widely used in vacuum evaporation, vacuum concentration, vacuum resuscitation, vacuum drying and vacuum smelting in food, textile, chemical, pharmaceutical and metallurgical industries and electronic fields.
4. 2SK water ring vacuum pump has the characteristics of high vacuum degree, high pumping speed in the vacuum area, compact structure, close working and convenient maintenance.
5. The 2SK series is used in the working conditions where the suction pressure is lower than -0.08MPa.
Product Features: 1. Under the same shaft power of 2SK water ring vacuum pump, the shaft power is significantly higher than that of 2bv vacuum and 2BE water ring pump.
2. The 2SK water ring vacuum pump has the characteristics of high vacuum degree and high pumping speed in the high vacuum area.
3. 2SK series water ring vacuum pump is equivalent to two SK water ring pumps. Since the water ring pump can only reach a vacuum degree of -0.093mpa, the 2SK water ring pump with a faster pumping speed and a vacuum degree of -0.098mpa has been developed.
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.
){kind=link}