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Shanghai Wanjing Pump Manufacturing Official Website

Phone: 400-6064-114

Mobile: 021-59775595

Fax: 021-59775509

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Address: No. 98, Lane 1233, Lucai North Road, Huaxin Town, Qingpu District, Shanghai

2BV5111 water ring vacuum pump
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Product introduction Product introduction
National free consultation hotline: 400-6064-114



The 2BV series water ring vacuum pump is an integral structure—a single-stage pump with a coaxial pump. The shaft seal adopts mechanical seal, which has the characteristics of simple structure, simple installation, no oil, safety and reliability.
The 2BV series water ring vacuum pump is suitable for removing gas and humid steam. The suction pressure can reach 33mbar absolute pressure (97% vacuum). When the 2BV water ring vacuum pump works for a long time under the state of the suction pressure below 80mbar, it should be The cavitation protection tube is connected 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, its pressure can reach 0.26. MPa (absolute pressure).
2BV series water ring vacuum pumps and compressors are widely used in petroleum, chemical, pharmaceutical, food, sugar industry and other fields. Because 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 its application is more extensive.

Main application fields of 2BV water ring vacuum pump
Vacuum filtration
(Chemical filtering plant, chemical processing plant, iron ore plant, mining industry, phosphate fertilizer plant, paper mill, poultry processing plant, coal preparation plant)
Steam recovery
(Distillers, loading stations)
Water pump
(Waterworks)
Condenser water tank
(Power station)
Vacuum distillation
(Milk, food, chemical, pulp)
drying
(Chemical and pharmaceutical manufacturing)
Vacuum disinfection
(Hospital, infirmary, laboratory)
Wood treatment / drying
Extrusion
(Plastic industry)
Medical / laboratory vacuum
forming
(Plastic, polyethylene, rubber, tire, etc.)
Solvent recovery
Dipping
(Food processing, wood processing, textile mills, plywood mills, telephone pole manufacturing, etc.)
Soil purification
Vacuum packaging
Liquid degassing
(Food processing, water softening, bottling plant)
extraction
Compressed air regeneration
(Pulp, steel, automotive, glass, chemical)
Tanning
food processing
(Food processing plant, dairy plant)
Canned




The 2BV water ring vacuum pump is shown in Figure (1). The impeller 3 is eccentrically installed in the pump body. When starting, the water is injected into the pump to a certain height. Therefore, when the impeller 3 rotates, the water is affected by the centrifugal force 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. During the first half of the rotation, the inner surface of the water ring of the 2BV water ring vacuum pump gradually disengages from the hub. The ring forms a closed space. As the impeller rotates, the space gradually expands, the pressure of the space gas decreases, and the gas is sucked in from the disc suction port. During the second half of the rotation, the inner surface of the water ring gradually approaches the hub, and the space between the blades The space gradually shrinks, and the pressure of the space gas rises. When the pressure of the space is higher than the pressure of the exhaust port, the gas between the blades is discharged from the disc exhaust port. In this way, every time the impeller rotates, the space between the blades sucks and exhausts once, and many spaces work non-stop. The 2BV water ring vacuum pump continuously sucks or pressures the gas.
2BV water ring vacuum pumps generate heat during work, which will cause the working water ring to heat up, and at the same time, part of the water and gas will be discharged together. Therefore, during the work, the pump must be continuously supplied with water to cool and replenish. The water consumed in the pump meets the working requirements of the pump.
When the gas discharged from 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. After the exhaust gas and part of the water are discharged into the gas water separator, the gas and water are separated. 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, cold water needs to be supplied 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.
 

Working principle of 2BV water ring vacuum pump
1. Water ring. 2. Pump cover. 3. Impeller. 4. Intake port. 5.Exhaust port
Figure 1 Working principle of water ring vacuum pump and compressor


When the 2BV water ring vacuum pump is used as a compressor, a gas-water separator is connected to the pump exhaust port. After the gas-water mixture enters the gas-water separator, the gas is automatically separated. The gas is sent 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 extremely hot, and the water is discharged from the pump exhaust port, and the temperature will become higher. It is necessary to continuously supply cold water from the water supply pipe. It can supplement the discharged water, and at the same time play a cooling role, so that the temperature of the working water will not be too high, so as to ensure the performance of the compressor, reach the technical indicators of the energy, and meet the process requirements.



The structure of 2BV water ring vacuum pump is shown in Figure 2, Figure 3 and Figure 4
 

Structure description of 2BV water ring vacuum pump
Structure description of 2BV water ring vacuum pump
Figure 2 Structure of 2BV-2060 / 2061/2070/2071 water ring pump
Figure 3 2BV-5110 / 5111/5121/5131/5161 water ring pump structure
1. pump cover 2. disk 3. flat key 4. impeller 5. mechanical seal 6. pump body 7. motor
1. pump cover 2. disk 3. flat key 4. impeller 5. mechanical seal 6. pump body 7. motor


 

Structure description of 2BV water ring vacuum pump
Figure 4 2BV-6110 / 6111/6121/6131/6161 water ring pump structure
1. pump cover 2. disk 3. flat key 4. impeller 5. mechanical seal 6. pump body 7. motor

2BV vacuum pump is composed 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 cavity through the suction holes and exhaust holes 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 flat keys. The gap between the impeller 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 gap determines the loss of gas in the pump cavity from the inlet to the exhaust port and its ultimate pressure.
The 2BV vacuum pump uses a mechanical seal, which 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 2BV vacuum pump cover. The disc is equipped with suction and exhaust holes and a flexible exhaust valve disc. The role of the flexible valve disc is to exhaust the gas when the gas pressure between the impeller blades reaches the exhaust pressure. The gas has been discharged before, which reduces the power consumption due to the excessive gas pressure, thereby reducing the rate consumption.



2BV vacuum pump and compressor system consists of vacuum pump (compressor), electric motor, and air-water separator pipeline, as shown in Figure 5.
The working process of the 2BV vacuum pump, compressor and gas-water separator is as follows: the gas enters the 2BV vacuum pump or compressor through the valve through the valve, then enters the gas-water separator through the exhaust pipe, and is discharged through the exhaust pipe of the gas-water separator. When used as a compressor, after the gas-water mixture discharged from the compressor is separated in a gas-water separator, the gas is delivered to the system that needs compressed gas through a valve. The working water in the 2BV vacuum pump or compressor is discharged from the gas-water separator to the vacuum pump for reuse without cooling. The remaining working water is supplemented by the water supply pipe. The amount of water supply is adjusted by the valve on the water supply pipe.
The difference between gas suction and pressure feed systems is only the internal structure of the gas-water separator. When pumping gas, the pressure at the suction port is lower than atmospheric pressure, and the pressure at the exhaust port is equal to atmospheric pressure. The gas-water separator has a overflow pipe; when the gas is pumped, the suction port is at normal pressure (it can also be in a vacuum state), and the gas is exhausted. The port pressure is higher than one atmosphere. In order to ensure the pressure of the conveyed gas, the water level of the gas-water separator is controlled by an overflow switch.
 

Product description of 2BV water ring vacuum pump
Figure 5 Schematic diagram of 2BV water ring pump system
1. 2BV vacuum pump 2. water supply pipe 3. check valve 4. suction pipe 5. air-water separator 6. exhaust pipe 7. overflow pipe






Product number
Ultimate pressure
Mbar (Pa)
Maximum air volume
M3 / min
power
KW
Rotating speed
Rpm
Water consumption
L / min
noise
dB (A)
weight
Kg
2060
33 (3300)
0.45
1.1
2880
~ 2
62
20
2061
33 (3300)
0.87
1.5
2880
~ 2
65
twenty two
2070
33 (3300)
1.33
2.35
2880
~ 2.5
66
31
2071
33 (3300)
1.83
3.85
2880
~ 4.2
72
42
5110
33 (3300)
2.75
4
1450
~ 7
63
78
5111
33 (3300)
3.83
5.5
1450
~ 8.5
68
100
5121
33 (3300)
4.68
7.5
1450
~ 10
69
145
5131
33 (3300)
6.68
11
1450
~ 15
73
165
5161
33 (3300)
8.3
15
970
~ 20
74
252
6110
33 (3300)
2.75
4
1450
~ 7
63
107
6111
33 (3300)
3.83
5.5
1450
~ 8.5
68
142
6121
33 (3300)
4.68
7.5
1450
~ 10
69
198
6131
33 (3300)
6.68
11
1450
~ 15
73
238
6161
33 (3300)
8.3
15
970
~ 20
74
350


 

Note: 1. The data listed in the table are measured under the following technical conditions:
① Atmospheric pressure 101325Pa (1013mbar)
② Water inlet temperature 15 ℃
③ Intake air temperature 20 ℃
④ Air relative humidity 70%
2.Permissible deviation of performance ± 10%


Installation dimensions of 2BV water ring vacuum pumpInstallation dimensions of 2BV water ring vacuum pump
2BV-2060 / 2061/2070/2071 water ring vacuum pump dimensions


 

A B B1 H1 H2 H3 H4 H6 E P2 P3 R M S2 W1 W2 W3 d N3.0 N4.2 N8.7
2060 455 186 140 90 118 126 195 37.5 100 250 180 217 244 Φ10 110 26 twenty one G1 ″ G3 / 8 ″ G1 / 4 ″ G3 / 8 ″
2061 476 186 140 90 118 195 195 37.5 100 250 180 236 263 Φ10 110 26 twenty one G1 ″ G3 / 8 ″ G1 / 4 ″ G3 / 8 ″
2070 545 223 160 222 100 128 222 33 140 270 203 252 280 Φ12 110 33 27 G1 " G3 / 8 ″ G1 / 4 ″ G3 / 8 ″
2071 566 223 234 140 112 140 234 45 190 300 225 278 309 Φ12 110 33 37 G1 " G3 / 8 ″ G1 / 4 ″ G3 / 8 ″
Installation dimensions of 2BV water ring vacuum pumpInstallation dimensions of 2BV water ring vacuum pump
N1.0 suction port. N2.0 exhaust port. N3.0 working fluid interface. N4.2 Drain. N8.7 Cavitation protection (built-in)
2BV-5110 / 5111/5121/5131/5161 water ring vacuum pump dimensions


A B B1 B2 C1 C2 H1 H2 H3 H4 H5 H6 H7 F K L N T S1 S2 d1 d2 d3 d4 d5 W1
5110 637 325 255 190 41 26 140 156 202 361 328 38 57 464 320 130 92 340 Φ12 Φ12 19 160 123 97 52 180
5111 672 325 265 290 38 26 150 166 212 371 363 48 68 500 325 130 92 340 Φ12 Φ12 19 160 123 97 52 180
5121 771 347 265 290 36 26 150 167 217 385 363 39 60 584 410 147 97 382 Φ12 Φ12 19 182 142 113 67 200
5131 840 377 300 335 35 30 175 194 249 427 435 53 76 659 440 147 103 382 Φ12 Φ12 19 182 142 113 67 200
5161 1044 479 370 389 52 30 210 225 303 521 485 51 80 808 570 201 138 450 Φ15 Φ15 twenty two 200 156 130 80 250


W2 W3 d (N1.0, N2.0) N3.0 N4.2 N8.7
5110 52 27 DN50 / 2 ″ G3 / 4 ″ (wire length 24) G3 / 8 ″ (wire length 25) G3 / 8 ″ (silk length 11)
5111 52 27 DN50 / 2 ″ G3 / 4 ″ (wire length 24) G3 / 8 ″ (wire length 25) G3 / 8 ″ (silk length 11)
5121 57 29 DN65 / 2 " G3 / 4 ″ (wire length 24) G3 / 8 ″ (wire length 25) G3 / 8 ″ (silk length 11)
5131 63 32 DN65 / 2 " G3 / 4 ″ (wire length 24) G3 / 8 ″ (wire length 25) G3 / 8 ″ (silk length 11)
5161 81 41 DN80 / 3 ″ G3 / 4 ″ (wire length 24) G3 / 8 ″ (wire length 25) G3 / 8 ″ (silk length 11)


Installation dimensions of 2BV water ring vacuum pump
Installation dimensions of 2BV water ring vacuum pump
Installation dimensions of 2BV water ring vacuum pump
Installation dimensions of 2BV water ring vacuum pump
N1.0 suction port, N2.0 exhaust port, N3.0 working fluid interface, N4.2 drain port, N8.7 cavitation protection (built-in)
2BV-6110 / 6111/6121/6161 / Water ring vacuum pump dimensions
Amax B B1 C1 F1 F2max H1 H2 H3 H4 H6 H7 K L N
6110-H..0 1097 330 255 26 291 446 160 173 223 381 58 77 319 319 281
6110-K..0 1190 330 255 26 291 540 160 173 223 381 58 77 319 319 281
6111-K..0 1291 330 279 26 360 500 180 196 242 401 78 97 349 349 311
6121-K..0 1332 351 279 26 361 540 180 197 247 415 69 90 384 384 340
6131-K..0 1525 382 320 26 461 615 215 234 287 467 93 116 405 405 353
6161-K..0 1680 484 320 26 461 705 230 230 310 526 56 85 477 477 413
W1 W2 W3 S1 T d1 d2 d3 d4 d5 d (N1.0, N2.0) N3.0 N4.2 N8.7

6110-0 .....

180 52 27 Φ13 × 23 340 19 160 123 97 52 DN50 / 2 ″ "DN15 + G3 / 4" (wire length 24) G3 / 8 ″ (wire length 25) G3 / 8 ″ (silk length 11)

6110-0 .....

80 52 27 Φ13 × 23 340 19 160 123 97 52 DN50 / 2 ″ "DN15 + G3 / 4" (wire length 24) G3 / 8 ″ (wire length 25) G3 / 8 ″ (silk length 11)
6121-0 ..... 200 57 29 Φ13 × 23 382 19 182 142 113 67 DN60 / 21/2 ″ "DN15 + G3 / 4" (wire length 24) G3 / 8 ″ (wire length 25) G3 / 8 ″ (silk length 11)
6131-0 ..... 200 63 29 Φ13 × 27 382 19 182 142 113 67 DN60 / 21/2 ″ "DN15 + G3 / 4" (wire length 24) G3 / 8 ″ (wire length 25) G3 / 8 ″ (silk length 11)
6161-0 ..... 250 81 41 Φ13 × 27 450 twenty two 200 156 130 80 DN80 / 3 ″ "DN15 + G3 / 4" (wire length 24) G3 / 8 ″ (wire length 25) G3 / 8 ″ (silk length 11)




1. Installation of water ring vacuum pump:
When the water ring vacuum pump and compressor are installed, the mounting surface must be horizontal and bolted through the holes in the bottom corner. To prevent welding slag from entering the vacuum pump during installation, a filter should be installed on the suction pipe during installation.
2.Installation of water ring vacuum pump air-water separator
The water ring vacuum pump air-water separator can be directly installed on the exhaust port of the water ring vacuum pump and fixed firmly with bolts. The gas-water separator has a pipeline connected to the pump, so that the water ring vacuum pump is required to work, and the remaining working water is supplied by the water supply pipe, and the water supply is adjusted by a valve on the pipeline.
The inlet pipe of the water ring vacuum pump or compressor should be equipped with a check valve to prevent the water in the vacuum pump or compressor from returning to the system under the pressure of the exhaust pipe when stopping.

1.Water ring vacuum pump start
Before the water ring vacuum pump is stopped for a long time, the pump must be turned several times by hand to confirm that there is no jam or other damage in the water ring vacuum pump.
The water ring vacuum pump starts in the following sequence (see Figure 5)
(1) Open the exhaust pipe valve.
(2) Start the motor (note the forward and reverse rotation of the motor)
(3) Quickly open the water supply pipe 2 in Figure 5. Gradually increase the water supply until the water supply meets the specified requirements (care should be taken not to run the vacuum pump dry).
2.Water ring vacuum pump stops
Water ring vacuum pump stops in the following order:
(1) (If the intake pipe has a valve) Close the valve on the intake pipe.
(2) Close the water supply pipe 2 and quickly shut down the vacuum pump.
(3) After stopping, the water in the pump cavity should be drained to prevent the blade and the pump shaft from breaking when restarted.



1, 2BV type water ring vacuum pump In order to avoid abrasion of the impeller, the pump body or the impeller, dust particles that enter the pump cavity with the gas and working fluid can be washed out through the flushing port at the bottom of the 2BV type water ring vacuum pump.
2. If hard water is used as the working fluid, it must be softened or the pump should be cleaned with solution within a certain period.
3, 2BV type water ring vacuum pump motor bearings often work higher than the surrounding temperature of 15 ℃ ~ 20 ℃, the maximum allowed is not more than 55 ℃ ~ 60 ℃, normal working bearings should be filled with oil 1-2 times a year, at least clean the bearings each year Once and replace all the lubricant.
4. The mechanical seal used in the 2BV water ring vacuum pump has a leakage phenomenon. It should be checked whether the dynamic and static ring of the mechanical seal is damaged or the seal ring is aging. If the above situation occurs, new parts must be replaced.

2BV water ring vacuum pump failure phenomenon Possible causes of 2BV water ring vacuum pump 2BV water ring vacuum pump elimination method
2BV vacuum pump motor does not start; no sound Two power cords are broken Check the wiring
Motor does not start; buzzing One wire is broken, the rotor of the motor is blocked and the impeller is faulty. Drain the cleaning pump if necessary, correct the impeller clearance, change the impeller, change the bearing
When the motor starts, the current breaker trips Short-circuit winding Motor overload Exhaust pressure is too high Excessive working fluid Check motor windings. Reduce working fluid flow. Reduce exhaust pressure. Reduce working fluid.
Excessive power consumption Produce precipitation Clean and remove sediment
2BV vacuum pump does not generate vacuum No leakage of working fluid system Check the working fluid to repair the leak and replace the two wires to change the rotation direction
2BV vacuum pump vacuum is too low Pump is too small, working fluid flow is too small, working fluid temperature is too high (<15 ° C)
Abrasive System Mild Leak Seal Leak
Use a larger pump to increase the working fluid flow to cool the working fluid, increase the flow, replace parts, repair the leak, check the seal
2BV vacuum pump sharp noise Caustic working fluid flow is too high Connect gas corrosion protection to check working fluid and reduce flow
2BV vacuum pump leak Bad seal Check all sealing surfaces

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