2W.W密封型双螺杆泵详细介绍
● 2W.W双螺杆泵的优点
1、输送液体平稳、无脉动、无搅拌、振动小、噪音低。
2、有很强的自吸性能，多相混输时，含气率不高于80%，含沙量不高于500g/m3.
3、外置轴承结构，采用独立润滑，可以输送各种非润滑性介质。
4、采用同步齿轮驱动，二转子之间不接触，即使短时间空转也无妨。
5、泵体带有加热套，可以输送各种清洁或含有固体小颗粒的低粘度或高粘度介质（一般颗粒直径小于0.12-0.2mm)
6、正确的选用材料，甚至可以输送很多有腐蚀性的介质。
7、双吸式结构，转子上没有轴向力。
8、轴端采用机械密封或波纹管机械密封，具有寿命长、泄漏少、适用范围广的特点。
●2W.W双螺杆泵性能范围
1、最高工作压力4.0MPa
2、流量范围 1～1000m3/h
3、温度范围-20～120℃
4、介质粘度 1～3000mm2/s，降低转速可达到106mm2/s
介质粘度对 双螺杆泵性能影响较大，泵的名义排量是指在特定粘度条件下的排量，为保证泵能在较高效率下工作，在试验不充分时，建议按下列粘度条件选择转速：
1、输送液体平稳、无脉动、无搅拌、振动小、噪音低。
2、有很强的自吸性能，多相混输时，含气率不高于80%，含沙量不高于500g/m3.
3、外置轴承结构，采用独立润滑，可以输送各种非润滑性介质。
4、采用同步齿轮驱动，二转子之间不接触，即使短时间空转也无妨。
5、泵体带有加热套，可以输送各种清洁或含有固体小颗粒的低粘度或高粘度介质（一般颗粒直径小于0.12-0.2mm)
6、正确的选用材料，甚至可以输送很多有腐蚀性的介质。
7、双吸式结构，转子上没有轴向力。
8、轴端采用机械密封或波纹管机械密封，具有寿命长、泄漏少、适用范围广的特点。
●2W.W双螺杆泵性能范围
1、最高工作压力4.0MPa
2、流量范围 1～1000m3/h
3、温度范围-20～120℃
4、介质粘度 1～3000mm2/s，降低转速可达到106mm2/s
介质粘度对 双螺杆泵性能影响较大，泵的名义排量是指在特定粘度条件下的排量，为保证泵能在较高效率下工作，在试验不充分时，建议按下列粘度条件选择转速：
介质粘度cSt 转速r/min
＜400 1500
400 ～1200 1000
1200～3600 750
＜400 1500
400 ～1200 1000
1200～3600 750
对于粘度更高的介质，所应选用的转速和驱动电机功率，请与制造厂联系。
●双螺杆泵应用举例
1、油田：用作油、气、水、微量细小固相颗粒等多相混输泵及原油输送泵。
2、造般业：用作船用装载泵，船底扫舱及污水处理，主机润滑泵，燃料油泵。
3、石油化学工业 ：用作各种树脂、颜料、石蜡、油漆、油墨、乳胶、各种油品、原油 、重油等装载和运输泵。
4、热电厂：用作重油、原油输送泵，主机润滑油泵。
5、食品工业：用作洒精、蜂蜜、糖浆、果汁、动植物油、牛奶、浆油输送泵。
1、油田：用作油、气、水、微量细小固相颗粒等多相混输泵及原油输送泵。
2、造般业：用作船用装载泵，船底扫舱及污水处理，主机润滑泵，燃料油泵。
3、石油化学工业 ：用作各种树脂、颜料、石蜡、油漆、油墨、乳胶、各种油品、原油 、重油等装载和运输泵。
4、热电厂：用作重油、原油输送泵，主机润滑油泵。
5、食品工业：用作洒精、蜂蜜、糖浆、果汁、动植物油、牛奶、浆油输送泵。
2W.W型双螺杆泵性能参数表
|
型号 规格 |
压力 MPa |
1450r/nin
|
950r/min
|
720r/min
|
|||||||||||||
|
30cSt |
75cSt |
150cSt |
300cSt |
450cSt |
750cSt |
1500cSt |
2500cSt |
||||||||||
|
m3/h
|
kw |
m3/h |
kw |
m3/h |
kw |
m3/h |
kw
|
m3/h |
kw |
m3/h |
kw |
m3/h |
kw |
m3/h |
kw |
||
|
2.5-15
|
0.6
|
2.4
|
1.5
|
3
|
2.2
|
3.2
|
2.2
|
3.3
|
2.2
|
1.8
|
1.5
|
1.8
|
2.2
|
1.3
|
2.2
|
1.3
|
2.2
|
|
1.0
|
1.7
|
2.2
|
2.6
|
2.2
|
2.9
|
3
|
3.1
|
3
|
1.7
|
2.2
|
1.7
|
2.2
|
1.2
|
2.2
|
1.2
|
2.2
|
|
|
2.5-20
|
0.4
|
3.9
|
1.5
|
4.3
|
1.5
|
4.4
|
2.2
|
4.5
|
2.2
|
2.6
|
1.5
|
2.6
|
2.2
|
1.9
|
2.2
|
1.9
|
2.2
|
|
0.6
|
3.4
|
1.5
|
4
|
2.2
|
4.2
|
2.2
|
4.3
|
2.2
|
2.5
|
2.2
|
2.5
|
2.2
|
1.8
|
1.5
|
1.8
|
2.2
|
|
|
2.8-18
|
0.6
|
4.3
|
2.2
|
4.8
|
2.2
|
4.9
|
3
|
5
|
3
|
2.9
|
2.2
|
2.9
|
3
|
2.1
|
3
|
2.1
|
3
|
|
1.0
|
3.7
|
3
|
4.4
|
4
|
4.7
|
4
|
4.8
|
4
|
2.7
|
3
|
2.7
|
3
|
2
|
3
|
2
|
4
|
|
|
2.8-24
|
0.4
|
6.3
|
2.2
|
6.6
|
2.2
|
6.7
|
3
|
6.8
|
3
|
4
|
2.2
|
4
|
3
|
2.9
|
2.2
|
2.9
|
3
|
|
0.6
|
5.9
|
2.2
|
6.4
|
4
|
6.5
|
4
|
6.6
|
4
|
3.8
|
3
|
3.8
|
3
|
2.7
|
3
|
2.7
|
3
|
|
|
3.1-22
|
0.6
|
7.7
|
3
|
8.2
|
4
|
8.3
|
4
|
8.4
|
4
|
5
|
3
|
5
|
4
|
3.7
|
3
|
3.7
|
4
|
|
1.0
|
7
|
4
|
7.8
|
5.5
|
8
|
5.5
|
8.1
|
5.5
|
4.8
|
4
|
4.8
|
5.5
|
3.5
|
4
|
3.5
|
5.5
|
|
|
3.1-30
|
0.4
|
11.1
|
3
|
11.4
|
3
|
11.5
|
4
|
11.6
|
5.5
|
6.9
|
3
|
6.9
|
4
|
5.1
|
3
|
5.1
|
4
|
|
0.6
|
10.6
|
4
|
11.1
|
5.5
|
11.3
|
5.5
|
11.4
|
5.5
|
6.7
|
4
|
6.7
|
5.5
|
4.9
|
4
|
4.9
|
5.5
|
|
|
3.2-18
|
1.6
|
-
|
-
|
4.8
|
7.5
|
5.8
|
7.5
|
6.3
|
7.5
|
2.4
|
5.5
|
2.4
|
5.5
|
0.9
|
4.0
|
0.9
|
5.5
|
|
2.0
|
-
|
-
|
4.2
|
7.5
|
5.5
|
7.5
|
6.1
|
11
|
2.3
|
7.5
|
2.3
|
7.5
|
0.9
|
4.0
|
0.9
|
5.5
|
|
|
2.5
|
-
|
-
|
3.4
|
11
|
5.0
|
11
|
5.8
|
11
|
2.1
|
7.5
|
2.1
|
7.5
|
0.8
|
5.5
|
0.8
|
5.5
|
|
|
3.2-24
|
1.0
|
5.5
|
5.5
|
7.6
|
7.5
|
8.4
|
11
|
8.7
|
11
|
4.6
|
5.5
|
4.6
|
5.5
|
2.7
|
5.5
|
2.7
|
5.5
|
|
1.25
|
4.6
|
7.5
|
7.2
|
11
|
8.2
|
11
|
8.5
|
11
|
4.5
|
5.5
|
4.5
|
7.5
|
2.6
|
5.5
|
2.6
|
7.5
|
|
|
1.6
|
3.4
|
7.5
|
6.7
|
11
|
7.8
|
11
|
8.3
|
11
|
4.3
|
7.5
|
4.3
|
7.5
|
2.5
|
5.5
|
2.5
|
7.5
|
|
|
3.2-30
|
0.6
|
9.7
|
5.5
|
11
|
5.5
|
11.5
|
5.5
|
11.7
|
7.5
|
6.8
|
5.5
|
6.8
|
5.5
|
4.3
|
5.5
|
4.3
|
5.5
|
|
1.0
|
8.0
|
7.5
|
10.2
|
7.5
|
10.9
|
7.5
|
11.2
|
7.5
|
6.5
|
5.5
|
6.5
|
5.5
|
4.3
|
5.5
|
4.3
|
5.5
|
|
|
3.2-44
|
0.4
|
16.4
|
5.5
|
17.5
|
7.5
|
17.9
|
7.5
|
18.1
|
7.5
|
11.2
|
4.0
|
11.3
|
5.5
|
8.0
|
4.0
|
8.0
|
4.0
|
|
0.6
|
15.2
|
7.5
|
17
|
7.5
|
17.4
|
7.5
|
17.6
|
7.5
|
10.9
|
5.5
|
11
|
5.5
|
7.8
|
5.5
|
7.8
|
5.5
|
|
|
3.4-24
|
1.6
|
-
|
-
|
7.4
|
11
|
9
|
11
|
9.8
|
11
|
5.7
|
7.5
|
5.7
|
7.5
|
4.3
|
7.5
|
4.3
|
11
|
|
2.0
|
-
|
-
|
6.5
|
11
|
8.5
|
11
|
9.5
|
15
|
5.5
|
11
|
5.5
|
11
|
4.1
|
7.5
|
4.1
|
11
|
|
|
2.5
|
-
|
-
|
5.3
|
15
|
7.8
|
15
|
9.1
|
15
|
5.1
|
11
|
5.1
|
11
|
3.9
|
11
|
3.9
|
11
|
|
|
3.4-30
|
1.0
|
8.3
|
7.5
|
11.4
|
7.5
|
12.4
|
11
|
12.9
|
11
|
7.6
|
7.5
|
7.6
|
7.5
|
5.6
|
7.5
|
5.6
|
7.5
|
|
1.25
|
6.9
|
11
|
10.7
|
11
|
12.1
|
11
|
12.6
|
11
|
7.4
|
7.5
|
7.4
|
11
|
5.5
|
7.5
|
5.5
|
11
|
|
|
1.6
|
5
|
11
|
9.9
|
11
|
11.5
|
11
|
12.3
|
15
|
7.1
|
11
|
7.1
|
11
|
5.3
|
7.5
|
5.3
|
11
|
|
|
3.4-40
|
0.6
|
14.8
|
5.5
|
16.8
|
7.5
|
17.5
|
7.5
|
17.8
|
11
|
10.6
|
7.5
|
10.6
|
7.5
|
7.8
|
7.5
|
7.8
|
7.5
|
|
1.0
|
12.2
|
11
|
15.5
|
11
|
16.6
|
11
|
17.2
|
11
|
10
|
7.5
|
10
|
7.5
|
7.4
|
7.5
|
7.4
|
7.5
|
|
|
3.4-56
|
0.4
|
21.8
|
5.5
|
23.2
|
7.5
|
23.7
|
7.5
|
24
|
11
|
14.3
|
5.5
|
14.4
|
7.5
|
10.5
|
5.5
|
10.5
|
7.5
|
|
0.6
|
20.2
|
7.5
|
22.5
|
11
|
23.1
|
11
|
23.4
|
11
|
13.8
|
7.5
|
13.9
|
7.5
|
10.1
|
7.5
|
10.1
|
7.5
|
|
|
4.0-26
|
1.6
|
12.4
|
15
|
14.6
|
15
|
15.7
|
18.5
|
9.3
|
11
|
9.3
|
15
|
7
|
11
|
7
|
15
|
||
|
2.0
|
11.2
|
15
|
13.9
|
18.5
|
15.3
|
22
|
9
|
15
|
9
|
15
|
6.8
|
15
|
6.8
|
15
|
|||
|
2.5
|
9.6
|
18.5
|
13.1
|
22
|
14.8
|
22
|
8.6
|
15
|
8.6
|
15
|
6.6
|
15
|
6.6
|
15
|
|||
|
4.0-32
|
1.0
|
13.9
|
11
|
18.2
|
15
|
19.6
|
15
|
20.3
|
15
|
12.2
|
11
|
12.2
|
15
|
9.1
|
11
|
9.1
|
11
|
|
1.25
|
12
|
15
|
17.3
|
15
|
19.1
|
15
|
20
|
18.5
|
11.9
|
11
|
11.9
|
15
|
8.9
|
11
|
8.9
|
15
|
|
|
1.6
|
16.1
|
18.5
|
18.4
|
18.5
|
19.5
|
22
|
11.5
|
15
|
11.5
|
15
|
8.6
|
11
|
8.6
|
15
|
|||
|
4.0-44
|
0.6
|
24.6
|
11
|
27.4
|
11
|
28.3
|
11
|
28.8
|
15
|
17.3
|
11
|
17.3
|
11
|
12.8
|
11
|
12.8
|
11
|
|
1.0
|
21.1
|
15
|
25.7
|
15
|
27.2
|
15
|
27.9
|
18.5
|
16.6
|
11
|
16.6
|
15
|
12.3
|
11
|
12.3
|
15
|
|
|
4.0-64
|
0.4
|
37.2
|
11
|
39.1
|
11
|
39.8
|
11
|
40.1
|
15
|
24.1
|
11
|
24.2
|
11
|
17.8
|
11
|
17.8
|
11
|
|
0.6
|
35
|
11
|
38
|
15
|
38.9
|
15
|
39.4
|
18.5
|
23.5
|
11
|
23.7
|
11
|
17.3
|
11
|
17.3
|
11
|
|
|
4.5-30
|
1.6
|
17.4
|
18.5
|
22.3
|
22
|
24
|
22
|
24.8
|
30
|
14.9
|
18.5
|
15
|
18.5
|
11.1
|
18.5
|
11.2
|
18.5
|
|
2.0
|
15.1
|
22
|
21.3
|
30
|
23.4
|
30
|
24.4
|
30
|
14.5
|
22
|
14.6
|
22
|
10.9
|
18.5
|
11
|
22
|
|
|
2.5
|
12.3
|
30
|
20
|
30
|
22.6
|
30
|
23.9
|
30
|
14.2
|
22
|
14.3
|
22
|
10.6
|
18.5
|
10.6
|
22
|
|
|
4.5-40
|
1.0
|
29.1
|
18.5
|
32.4
|
18.5
|
33.5
|
22
|
34
|
22
|
20.5
|
18.5
|
20.6
|
18.5
|
15.3
|
15
|
15.3
|
18.5
|
|
1.25
|
27.5
|
18.5
|
31.6
|
22
|
33
|
30
|
33.7
|
30
|
20.2
|
18.5
|
20.3
|
22
|
15
|
18.5
|
15.1
|
22
|
|
|
1.6
|
25.3
|
30
|
30.6
|
30
|
32.3
|
30
|
33.2
|
30
|
19.9
|
22
|
20
|
22
|
14.7
|
18.5
|
14.8
|
22
|
|
|
4.5-52
|
0.6
|
41.8
|
15
|
43.9
|
15
|
44.6
|
18.5
|
45
|
22
|
27.3
|
15
|
27.4
|
18.5
|
20.3
|
15
|
20.3
|
15
|
|
1.0
|
38.9
|
22
|
42.4
|
22
|
43.6
|
30
|
44.2
|
30
|
26.6
|
18.5
|
26.7
|
18.5
|
19.7
|
15
|
19.7
|
18.5
|
|
|
4.5-72
|
0.4
|
57.3
|
15
|
58.8
|
15
|
59.3
|
18.5
|
59.6
|
22
|
36.1
|
15
|
36.2
|
15
|
26.9
|
15
|
26.9
|
18.5
|
|
0.6
|
55.5
|
18.5
|
57.7
|
22
|
58.5
|
22
|
58.9
|
22
|
35.5
|
22
|
35.6
|
18.5
|
26.3
|
18.5
|
26.3
|
22
|
|
|
5.0-28
|
2.5
|
17.3
|
37
|
24.7
|
37
|
27.2
|
37
|
28.4
|
45
|
17.1
|
30
|
17.3
|
37
|
12.9
|
30
|
12.9
|
37
|
|
3.2
|
23.1
|
45
|
26.3
|
45
|
27.9
|
55
|
16.7
|
37
|
17
|
45
|
12.7
|
37
|
12.8
|
37
|
|||
|
4.0
|
21.3
|
55
|
25.3
|
55
|
27.3
|
75
|
16.2
|
45
|
16.5
|
45
|
12.4
|
37
|
12.6
|
45
|
|||
|
5.0-40
|
1.6
|
34.6
|
37
|
39.5
|
45
|
41.1
|
45
|
42
|
45
|
25.4
|
30
|
25.6
|
37
|
19.9
|
30
|
20
|
37
|
|
2.0
|
32.3
|
37
|
38.4
|
45
|
40.5
|
45
|
41.5
|
45
|
25.1
|
37
|
25.3
|
37
|
18.8
|
37
|
18.9
|
37
|
|
|
5.0-40
|
2.5
|
29.4
|
45
|
37.1
|
45
|
39.7
|
55
|
41
|
55
|
24.7
|
37
|
24.9
|
37
|
18.5
|
37
|
18.6
|
37
|
|
5.0-52
|
1.0
|
50.7
|
30
|
53.9
|
30
|
55
|
37
|
55.5
|
37
|
33.8
|
30
|
34
|
30
|
25.3
|
30
|
25.4
|
30
|
|
1.25
|
49.1
|
30
|
53.1
|
37
|
54.4
|
37
|
55.1
|
45
|
33.5
|
30
|
33.7
|
37
|
25
|
30
|
25.1
|
37
|
|
|
1.6
|
46.9
|
37
|
52
|
45
|
53.7
|
45
|
54.6
|
55
|
33.1
|
37
|
33.3
|
37
|
24.7
|
30
|
24.7
|
37
|
|
|
5.0-64
|
0.6
|
66.1
|
22
|
68.1
|
22
|
68.8
|
30
|
39.1
|
37
|
42.3
|
22
|
42.4
|
30
|
31.6
|
22
|
31.7
|
30
|
|
1.0
|
63.2
|
30
|
66.6
|
37
|
67.7
|
37
|
68.2
|
45
|
41.5
|
30
|
41.7
|
30
|
30.9
|
30
|
31
|
30
|
|
|
5.0-96
|
0.4
|
96.7
|
22
|
98.1
|
22
|
98.6
|
30
|
98.8
|
37
|
60.3
|
22
|
60.4
|
30
|
45.1
|
22
|
45.1
|
30
|
|
0.6
|
89.7
|
30
|
96.9
|
37
|
97.7
|
37
|
98
|
45
|
59.6
|
30
|
59.7
|
30
|
44.4
|
30
|
44.5
|
30
|
|
|
5.0-30
|
2.5
|
26.7
|
45
|
34.1
|
45
|
36.6
|
55
|
37.8
|
75
|
22.7
|
45
|
23
|
45
|
17.1
|
45
|
17.3
|
45
|
|
3.2
|
23
|
55
|
32.5
|
55
|
35.7
|
75
|
37.2
|
75
|
22.2
|
45
|
22.5
|
55
|
16.8
|
45
|
17
|
55
|
|
|
4.0
|
30.6
|
75
|
34.6
|
75
|
36.6
|
75
|
21.8
|
55
|
22.1
|
55
|
16.6
|
55
|
16.8
|
55
|
|||
|
5.5-44
|
1.6
|
43
|
45
|
51.7
|
45
|
54.6
|
55
|
56
|
55
|
33.8
|
37
|
34.1
|
45
|
25.5
|
37
|
25.6
|
45
|
|
2.0
|
39
|
55
|
49.9
|
55
|
53.6
|
55
|
55.4
|
75
|
33.2
|
45
|
33.6
|
55
|
25
|
45
|
25.2
|
55
|
|
|
2.5
|
34.1
|
55
|
47.8
|
75
|
52.3
|
75
|
54.6
|
75
|
32.7
|
55
|
33.3
|
55
|
24.7
|
45
|
24.8
|
55
|
|
|
5.5-56
|
1.0
|
64.3
|
37
|
70
|
37
|
71.9
|
45
|
72.9
|
55
|
44.1
|
37
|
44.4
|
45
|
33
|
37
|
33.2
|
45
|
|
1.25
|
61.6
|
45
|
68.8
|
45
|
71.1
|
55
|
72.2
|
75
|
43.7
|
37
|
44
|
45
|
32.7
|
37
|
32.8
|
45
|
|
|
1.6
|
57.9
|
55
|
67
|
55
|
70
|
75
|
71.5
|
75
|
43.1
|
45
|
43.4
|
45
|
32.3
|
37
|
32.4
|
45
|
|
|
5.5-80
|
0.6
|
99.7
|
30
|
103
|
37
|
104
|
45
|
105
|
45
|
64
|
30
|
64.2
|
37
|
48
|
30
|
48
|
37
|
|
1.0
|
94.6
|
45
|
100
|
55
|
102
|
55
|
103
|
75
|
62.8
|
45
|
63.1
|
45
|
46.9
|
37
|
47
|
45
|
|
|
5.5-120
|
0.4
|
146
|
30
|
149
|
37
|
150
|
45
|
150
|
55
|
91.8
|
30
|
92
|
37
|
68.6
|
30
|
68.7
|
37
|
|
0.6
|
143
|
45
|
147
|
55
|
148
|
55
|
149
|
55
|
90.7
|
37
|
90.9
|
45
|
67.6
|
37
|
67.6
|
45
|
|
|
6.1-36
|
2.5
|
40.9
|
75
|
51.9
|
75
|
55.7
|
75
|
57.4
|
90
|
33
|
55
|
33.4
|
75
|
24.9
|
55
|
25
|
75
|
|
3.2
|
35.4
|
75
|
49.5
|
90
|
54.2
|
90
|
56.6
|
110
|
32.4
|
75
|
32.9
|
75
|
24.5
|
75
|
24.7
|
75
|
|
|
4.0
|
46.8
|
110
|
52.7
|
110
|
55.6
|
110
|
31.7
|
75
|
32.4
|
90
|
24
|
75
|
24.3
|
75
|
|||
|
6.1-48
|
1.6
|
67.6
|
55
|
74.8
|
75
|
77.3
|
75
|
78.5
|
75
|
47.5
|
55
|
47.8
|
75
|
35.7
|
55
|
35.8
|
75
|
|
2.0
|
64.2
|
75
|
73.3
|
75
|
76.3
|
75
|
77.8
|
90
|
47
|
75
|
47.5
|
75
|
35.2
|
55
|
35.3
|
75
|
|
|
2.5
|
60
|
75
|
71.4
|
90
|
75.2
|
90
|
77.1
|
110
|
46.4
|
75
|
46.9
|
75
|
34.9
|
55
|
34.9
|
75
|
|
|
6.1-64
|
1.0
|
99
|
45
|
103
|
55
|
105
|
75
|
106
|
75
|
64.5
|
45
|
64.7
|
55
|
48.4
|
45
|
48.5
|
55
|
|
1.25
|
96.6
|
55
|
102
|
75
|
104
|
75
|
105
|
90
|
64.1
|
55
|
64.3
|
75
|
48
|
55
|
48
|
75
|
|
|
1.6
|
93.3
|
75
|
101
|
75
|
103
|
90
|
104
|
90
|
63.2
|
75
|
63.7
|
75
|
47.2
|
55
|
47.5
|
75
|
|
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