Purpose: NMSG type pumps and pumping units based on the ANMSG type designed for pumping liquefied hydrocarbon gases with a temperature of up to 60 0 C in the technological processes of oil refineries and petrochemical production.
Design: Oil NMSG pumps - centrifugal, horizontal, double -bearing, double -hinged with a radial connector of the outer corps and a high -precision section of the sectional type, single -flow, multi -stage. Unloading of axial force - hydraulic with hydraulic or unloading piston in combination with a stubborn sliding bearing. Rotor supports are remote SKF rolling bearings with crankcase or remote sliding bearings with a forced lubrication system, depending on the power consumption. Shaft seals - mechanical with a stuffing box to fill out of various types, interchangeable with mechanical end seals of various performance according to plan 52 or plan 53 API 682.
Materials:
- hulls, lids and sections - boots made of carbon dinked steel with corrosion -resistant surfaces on sealing surfaces;
- details of the prototype part - casting and forging from chromium steels 20x13l and 30x13;
- Details of slotting seals - unprotected corrosion -resistant alloys;
- shaft - varietal rental made of structural alloy steel 40x.
Complete:
- A collected pump with auxiliary pipelines within the pump;
- Representative flanges on the pipes;
- Explosion -proceeding drive electric motor;
- Connective coupling like a municipal unitary enterprise with a fence;
- oil installation (if necessary);
- General foundation frame;
- Systems for ensuring the work of end seals (2 pcs.);
- Parts of fastening the pump, engine and fence of the coupling;
- SIP set.
The equipment is stipulated in the supply agreement.
range of Q-H NMSG pumps:
nominal parameters of NMSG pumps supplied in series by
TU U29.1-3493255-014: 2007:
|
Name |
Pump parameters |
||||||
|
feed, m3/h |
pressure, m |
frequency rotations, rpm |
Power, kW (R = 463 kg/m3) |
Power, kW (R = 510 kg/m3) |
Ph.P.D.,% |
allowable Cavitation reserve, m |
|
|
NMSG pump 25-125 U2 |
25 |
125 |
3000 |
8.4 |
9.2 |
47 |
2.4 |
|
NMSG pump 360-500 U2 |
360 |
500 |
291 |
320.5 |
72 |
4,6 |
|
|
NMSG pump 450-400 U2 |
450 |
400 |
299 |
329 |
78 |
||
|
NMSG pump 450-500 U2 |
450 |
410 |
333 |
302 |
77 |
||
|
NMSG pump 550-500 U2 |
550 |
500 |
490 |
444.5 |
78 |
||
