2BE series compressors

2017-03-25
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2BE series compressors

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Product Information
 

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2BE series compressors overview 
The liquid ring vacuum pumps and compressors of 2BE series are high-efficient and energy-saving products developed by our company on the basis of our scientific achievements and production experiences over the years combining with the advanced international technique of similar products. They are usually used to suction the gas without solid particle, undissolved and noncorrosive gas in order to form negative pressure in the closed container. By changing the fluid parts material, they can also be used to suction corrosive gas or use corrosive liquid as operating liquid such as the PPS thermal spray coating obtained national patent.   

These single-stage and single-acting pumps are simple in structure, convenient in maintaining, reliable in operating, efficient and energy-saving. They can run under tough working conditions with large drainage discharge and changing load impact. 2BE vacuum pumps adopt unique flexible discharge structure for their exhaust systems. Each valve plate is covered on vents in outer side of a port plate and fixed by a stainless steel baffle at its other side. Curvature of the valve plate changes with inlet pressure so that pumping medium can be discharged when it reaches the inlet pressure. Such structure avoids over-compression in a vacuum system and automatically adjusts exhausting area to lower power consumption, thus a best operating efficiency can be obtained.

 

2BE series products are applied in the chlor-alkali industry mainly to hydrogen compressor package unit of ion-exchange membrane caustic soda, acetylene compressor package unit of PVC and exhaust gas recycle vacuum pump etc.

 

Specifications of water ring compressor complete unit 

Water ring compressor package unit are large complete equipment developed on the basis of water ring compressor. The main pump is equipped with advanced 2BE2SY series water ring compressor and can provide aspiring system, water system of cooling and recycle seal liquid, gas and liquid separator, instruments and meters, security alarms device and pipe valves etc. according to different using requirements. The electrical control can set several functions such as manual operation, semi-automatic or full-automatic remote control. By experiments, the large complete equipment is verified to have the ability to pumping gas under various kinds of complicated working conditions and excellent performance, meanwhile can fully ensure clients’ requirements.

 

2BE2SY series water ring vacuum compressors are high-efficient and energy-saving products developed in the 1990s by our company on the basis of our scientific achievements and production experiences over the years combining with the advanced international technique of similar products.

The products are tested by national vacuum equipment quality supervision and inspection center. All the performance reaches or exceed design demand and appraised by experts, our products reach the international advanced level.

 

The outstanding characteristics and advantages:

 

The impeller material is qualified steel plate, and the blades are shaped once by stamping. The inside and outside of the wheel hub conduct machining and adopts welding process. The whole impeller conducts thermal treatment and has good balance. Therefore the problem of dynamic and static balance is solved fundamentally. Our impeller has high strength, good toughness, abrasion resistance, never broken, impact and bent resistance etc. advantages and reaches international advanced level.

 

According to different process, the fluid parts of the compressor can adopts many kinds of material, such as SS304, SS316 and treatments(spray coating treatment) to improve the capability of being suitable for working environment. The corrosion, washing, erosion resistance ability and anti-scale deposit ability are further enhanced.

 

The position of the impeller reinforce rib is away from the end face. The end face of the blades on the port plate surface scrapes the sundries between them off like a scraper in case that the sundries scale between the impeller and port plate and of the wear of port plate. The sudden shut off phenomenon can be avoided as well.

 

The optimization design of the port plate and molded lines of the impeller improve the stream guidance effect, enlarge the suction and discharge volume and brings high efficiency and simple structure. Therefore it barely need repair and maintenance.

 

Adopting wear-proof stainless steel shaft sleeve and ensure the shaft away from wear.

 

Shaft end of the compressor adopts reliable seal mode——mechanical seal, which can avoid leakage of operating liquid and pump gas efficiently.

 

Foreign import bearing has stronger bearing capability , accuracy position and service life over two hundred thousand hours, which ensure the reliability of compressor’s long term operation.

 

Compressor and attached device can be manufactured with ordinary or special material according to different medium.

 

The coupling is fixed with removable strong steel closed shield which is fastened into the bottom plate firmly.

 

The design and structure of each electric motor coordinate with electrical system driven device and operation maintenance. The motor is damp-proof closed.

 

All the equipments, including the support have capability to bear completely the force and moments of the force passed from the users connecting pipe ports.

 

The cooling device of the operating liquid is set according to the specific working condition and pumping capability of the compressor. Adopting heat exchanger with high efficiency and convenient repair and maintenance. The heat exchanger adopts plate type generally and the plates adopt SS304 stainless steel. Thus the closed cycle of operating liquid is achieved and save the consumption of the water.

 

According to the demand of working condition, the gas and liquid separator is generally provided which can separate the pumping gas efficiently and recycle operating liquid. Meanwhile, the liquid cooled by heat exchanger can replenish the recycle of operating liquid. The gas is discharged to specified place via the outlet of the separator. It’s specially suitable for pumping flammable, explosive and poisonous gas. The reliable automatic water replenishing and drainage device is correspondingly installed.

 

The liquid level meter in the separator that can display is magnetic flap type to be controlled by electrical magnetic valve or mechanical high-low liquid level switch. There is a DCS interface which is safe and reliable.

 

The package unit is provided with operating liquid drain-off pipes. When the package unit is shut down, the accumulated liquid can be drained off to specified place according to environmental requirement.

 

According to the process demand, the control of the electrical motor and the butterfly valve of the inlet can be set via DCS. To monitor, control and interlock all the control objects and other related systems as well as protect signal can access to DCS.

 

According to the process demand, the whole instrument measure and control device can be provided to make sure reliable test and control capability. The exact action of the high-low water level switch and reliable output interface can make the water ring vacuum pumps operate safely and reliably and ensure the package unit to work stable with high efficiency.

 

The compressor and all the accessories are supplied in complete and are installed on the same foundation support with all the accessories assembled well. Meanwhile the foundation support is set special drainage device in case of accumulated water.


Table of performance of 2BE1 liquid ring vacuum pumps (performance curves of compressors attached)
Click to activate the links of large figures for the performance curves. Please wait for a while if the figures appear slowly.

型号

Model

转速
(传动方式)
Rotating speed

(Rotating mode)

r/min

 

轴功率
Shaft power

kW

 配用电机

Motor
380V

极限真空度

(表压)

Limiting vacuum

(Gage pressure)

hpa

最大抽气速率 

Maximum suction rate

泵头重

Pump head weight
kg

m3/h

m3/min

2BE1-153

Vacuum pump curve

 

101-153压缩机曲线

Attached:101-153 Compressor curve

1450(D)
1100(V-belt)
1300(V-belt)
1620(V-belt)
1750(V-belt)

16.3
10.6

13.4
19.6
22.3

Y180M-4-18.5
Y160L-4-15

Y180M-4-18.5
Y180L-4-22
Y200L-4-30

33hpa
(-0.097MPa)

600
445

535
648
700

10.0
7.4

8.9
10.8
11.7

200

2BE1-202

Vacuum pump curve

 

压缩机曲线

Attached: Compressor curve

980(D)
790(V-belt)
880(V-belt)
1100(V-belt)
1170(V-belt)
1300(V-belt)

18.2
13.4
16.3
23.8
25.7
30

Y200L2-6-22
Y180M-4-18.5
Y180M-4-18.5
Y200L-4-30
Y200L-4-30
Y225S-4-37

33hpa
(-0.097MPa)

750
590
670
860
888
950

12.5
9.8
11.2
14.3
14.8
15.8

460

2BE1-203

Vacuum pump curve

 

压缩机曲线

Attached: Compressor curve

980(D)
790(V-belt)
880(V-belt)
1100(V-belt)
1170(V-belt)
1300(V-belt)

29.5
21.2
24.8
33
38
42

Y250M-6-37
Y200L-4-30
Y200L-4-30
Y225M-4-45
Y225M-4-45
Y250M-4-55

33hpa
(-0.097MPa)

1080
870
980
1210
1320
1390

18
14.5
16.3
20.2
22.0
23.2

530

2BE1-252

Vacuum pump curve

压缩机曲线

Attached: Compressor curve

740(D)
565(V-belt)
660(V-belt)
820(V-belt)
885(V-belt)
938(V-belt)

38
23.7
31.8
45

54
60

Y280M-8-45
Y200L-4-30
Y225S-4-37
Y250M-4-55
Y280S-4-75
Y280S-4-75

33hpa
(-0.097MPa)

1700
1200
1500
1770
2000
2100

28.3
20.0
25.0
29.5
33.3
35.0

870

2BE1-253

  Vacuum pump curve

压缩机曲线

Attached: Compressor curve

740(D)
565(V-belt)
660(V-belt)
740(V-belt)
792(V-belt)
820(V-belt)
880(V-belt)
940(V-belt)

54
37.2
45
50.8
60
68
75.1
88

Y315M-8-75
Y225M-4-45
Y250M-4-55
Y280S-4-75
Y280S-4-75
Y280M-4-75
Y280M-4-90
Y315S-4-110

33hpa
(-0.097MPa)

2450
1690
2100
2340
2560
2640
2780
3050

40.8
28.2
35
39
42.7
44
46.3
50.8

930

2BE1-303

Vacuum pump curve

压缩机曲线

Attached: Compressor curve

740(D)
590(D)
466(V-belt)
530(V-belt)
583(V-belt)
660(V-belt)
740(V-belt)

98
65.5
48
58
64
79.8
100

Y315L2-8-110
Y315L2-10-75
Y250M-4-55
Y280S-4-75
Y280S-4-75
Y280M-4-90
Y315S-4-110

33hpa
(-0.097MPa)

4000
3200
2520
2820
3100
3550
3840

66.7
53.3
42
47
51.7
59.2
64

1700

2BE1-305

Vacuum pump curve

压缩机曲线

Attached: Compressor curve

740(D)
590(D)
490(V-belt)
530(V-belt)
583(V-belt)
660(V-belt)
740(V-belt)

108
70
55
61
68
90
110

Y355M1-8-132
Y355M1-10-90
Y280S-4-75
Y280S-4-75
Y280M-4-90
Y315S-4-110
Y315M-4-132

33hpa
(-0.097MPa)

4520
3750
3150
3380
3700
4090
4550

75.3
62.5
52.5
56.4
61.2
68.1
75.8

1820

2BE1-353

Vacuum pump curve

压缩机曲线

Attached: Compressor curve

590(D)
390(V-belt)
415(V-belt)
464(V-belt)
520(V-belt)
585(V-belt)
620(V-belt)
660(V-belt)

121
65
70
81
97
121
133
152

Y355L2-10-160
Y280S-4-75
Y280M-4-90
Y315S-4-110
Y315M-4-132
Y315L1-4-160
Y315L1-4-160
Y315L2-4-185

33hpa
(-0.097MPa)

5300
3580
3700
4100
4620
5200
5500
5850

88.3
59.7
61.7
68.3
77.0
86.7
91.7
97.5

1950

2BE1-355

Vacuum pump curve

压缩机曲线

Attached: Compressor curve

590(D)
390(V-belt)
420(V-belt)
464(V-belt)
523(V-belt)
590(V-belt)
660(V-belt)

136
75
80.8

90
113
136
167

Y355L2-10-160
Y280M-4-90
Y315S-4-110
Y315S-4-110
Y315M-4-132
Y315L1-4-160
Y315L2-4-185

33hpa
(-0.097MPa)

5700

4180
4260

4850
5230
6000
6510

95
69.7
71
80.8
87.1
100
108

2200

2BE1-403

Vacuum pump curve

压缩机曲线

Attached: Compressor curve

330(V-belt)
372(V-belt)
420(V-belt)
472(V-belt)
530(V-belt)

98
110
131
160
203

Y315M-4-132
Y315M-4-132
Y315L1-4-160
Y315L2-4-200
Y355M2-4-250

33hpa
(-0.097MPa)

4860
5400 6470
7380
8100

81
90
107.8
123.0
135.0

3750

2BE1-405

Vacuum pump curve

压缩机曲线

Attached: Compressor curve

330(V-belt)
372(V-belt)
420(V-belt)
472(V-belt)
530(V-belt)

100
118
140
170
206

Y315M-4-132
Y315L1-4-160
Y315L2-4-185
Y315L2-4-200
Y355M2-4-250

33hpa
(-0.097MPa)

6000
6700
7500
8350
9450

100.0
111.7
125.0
139.2
157.5

3900

 

Note: 
The limiting vacuum of the 2BE1 series is 33hpa (=-735mmhg=-0.097Mpa=33mbar). 1hpa=1mbar,1mmhg=133.3 Pa.

The suction capacity in the table is the maximum capacity. Actual exhaust speed changes as the suction pressure. Specific operating pressure and the performance curves shall be considered when selecting pumps. 
Motor power of the vacuum pumps above are appropriate in most cases, but shall be increased accordingly when vent pressures (gage pressure 0.04-0.12MPa) are relatively higher so as to suit to the function as liquid ring compressors. The table also includes performance curves of the pumps when they function as compressors. Pumps can be selected according to the curves in case of such situation.

型号

Model

转速

(传动方式)
Rotating speed

(Rotating mode)

r/min

最大轴功率
Max. shaft power

kW

电机

Motor
kW

最大抽气速率 

Max. suction rate

极限真空度

(绝压)

Limiting vacuum

(abs.)
hpa

泵头重
Pump head weight

kg

m3/h

m3/min

2BE3-40

Vacuum pump curve

压缩机曲线

Attahed: Compressor curve

300(V-belt/Gear box)
330(V-belt/Gear box)
350(V-belt/Gear box)
390(V-belt/Gear box)
449(V-belt/Gear box)
475(V-belt/Gear box)
498(V-belt/Gear box)
530(V-belt/Gear box)

64.8
75
86.5
99
114
130
135

148

75
90
110
110
132
160
160

185

4200

4650

4860
5460
6180
6600
5900

7440

70
77.5
81

91
103
110
115

124

160

4050

 

2BE3-42

Vacuum pump curve

压缩机曲线

Attahed: Compressor curve

300(V-belt/Gear box)
330(V-belt/Gear box)
370(V-belt/Gear box)
390(V-belt/Gear box)
420(V-belt/Gear box)
470(V-belt/Gear box)
530(V-belt/Gear box)

100
109
124
133
140
167

200

110
132
160
160
185
185
220

5850
6300
7380
7680
7800
8580
10200

97.5
105

123
128
130
143
170

160

4200

2BE3-50

Vacuum pump curve

压缩机曲线

Attahed: Compressor curve

236(V-belt/Gear box)
266(V-belt/Gear box)
294(V-belt/Gear box)
330(V-belt/Gear box)
370(V-belt/Gear box)
420(V-belt/Gear box)

135
148
175

206
239
278

160
185
200
250
280
315

7500
8600
10000
11400
12500
13700

125
143
167
190
208
228

160

6000

2BE3-52

Vacuum pump curve

附:压缩机曲线

Attahed: Compressor curve

236(V-belt/Gear box)
266(V-belt/Gear box)
336(V-belt/Gear box)
366(V-belt/Gear box)
421(V-belt/Gear box)
468(V-belt/Gear box)

168
180
226
279
331
416

185
220
280
315
400
500

9000
10560
13900
15000
16800
18450

150
176
232
250
280
307.5

160

6500

Note: 
The suction capacity in the table is maximal capacity. Actual speed of exhaust changes with the suction pressure. Specific operating pressure and the performance curves shall be considered when selecting pumps.

Motor powers of the vacuum pumps are appropriate in most cases, but shall be increased accordingly when vent pressures (gage pressure 0.04-0.12MPa) are high so as to suit to the function as liquid ring compressors. The table also includes performance curves of the pumps when they function as compressors. Pumps can be selected according to the curves in case of such situation.

Water consumptions of the pumps under different pressures are shown by the performance curves.

2BE3-80N is an ultra-large water ring pump independently developed by our company on the basis of foreign advanced products, possessing an extraction capacity of 40000 m3/h. It is applied to operations requiring large extraction capacity such as mine gas discharge.

2BE series are usually used in combination with front separators, rear separators and heat exchangers. The integral water ring pump units manufactured by our company can be referred for type selection.

 

Water ring compressors of SY/2SY series are used for exhaus......
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