| Large Flow And Medium Pressure Piston Pumps |
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| Scope of application |
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| Such pumps are mainly used for liquid oxygen, liquid nitrogen,liquid argon and liquefied natural gas. |
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| Air supply systems at large and medium stell mills |
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| Filling of Dewar bottles |
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| Filling of storage tanks |
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| Other medium pressure air supply systems |
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| Performace parameters |
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| Flow:4000-72500L/h |
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| Maximum exit pressure:8.0MPa |
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| Executive standard |
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| JB/T 9076 Specifications for Reciprocating Cryogenic Liquid Pumps |
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| GB/T 9234 Power Reciprocating pumps |
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| Optional configuration |
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| Stationary motor/electromagnetic speed regulation/frequency control |
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| Safety valve/cryogenic stop valve |
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| Air return temperature interlocking device |
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| Liquid outlet pressure interlocking device |
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| Performace features |
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| The pumps has modular design and a wide coverage of flow |
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| A High vacuum jacket pump head is used,and the vacuum degree reaches 10-5 torr so as to reduce cold loss |
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| It has a reliable sealing structure |
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| An auxiliary gas sealing device can be equipped to further enhance tghe service life the sealing element |
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| Multiple configurations enhance the safety and automation degree of the pump |
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| Table of Large Flow And Medium Pressure Piston Pumps Parameters(IV) |
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| Model |
NO. |
FLOW |
Inlet pressure |
Max Out pressure |
Power |
Size |
| L/h |
MPa(A) |
MPa(A) |
KW |
mm(DN) |
| DSW4000-8000/30 |
3 |
4000-8000 |
0.02-0.8 |
3 |
18.5 |
65 |
40 |
40 |
| DSW5000-10000/30 |
3 |
5000-10000 |
0.02-0.8 |
3 |
22 |
65 |
40 |
40 |
| DSW8000-15000/30 |
3 |
8000-15000 |
0.02-0.8 |
3 |
30 |
65 |
40 |
40 |
| DSW10000-20000/30 |
3 |
10000-20000 |
0.02-0.8 |
3 |
37 |
65 |
40 |
40 |
| DSW10000-25000/30 |
3 |
10000-25000 |
0.02-0.8 |
3 |
458 |
100 |
65 |
40 |
| DSW10000-30000/30 |
3 |
10000-30000 |
0.02-0.8 |
3 |
55 |
65 |
40 |
40 |
| DSW5000-10000/60 |
3 |
5000-10000 |
0.02-0.8 |
3 |
37 |
65 |
40 |
40 |
| DSW8000-15000/60 |
3 |
8000-15000 |
0.02-0.8 |
3 |
55 |
65 |
40 |
40 |
| DSW72500/60 |
3 |
72500 |
0.02-0.8 |
3 |
185 |
150 |
80 |
80 |
Inspection and Testing Equipment
Transmission case running-in test:
The objective is to make the transmission case sliding bearing pass the run-in period so as to guarantee the steady operation of units.
Hydraulic pressure running-in test:
The objective is to perform running-in operation with load to the transmission case; in the meantime, a hydraulic test is performed to the pump head to inspect the pump head leakage and the quality of all weld joints.
Transmission case running-in test:
The objective of the delivery test of reciprocating pump unit is to completely assess the all performance indexes of the unit.
Centrifugal pump performance test:
The objective of liquid nitrogen cryogenic performance is to assess the all performance indexes of each centrifugalpump unit.
Immersed pump performance test:
The objective of liquid nitrogen cryogenic performance is to assess the all performance indexes of each immersed pump unit.
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