FIELD: technological processes.
SUBSTANCE: invention relates to mechanical engineering. The stage for a submerged multistage centrifugal pump has an impeller and a guide apparatus. The components are made from a cast iron bar by adding aluminium in amount of 1.8…4% under a melt mirror at temperature 1420-1460°C and heating the melt to pouring temperature 1500-1530°C. After pouring, the melt is then modified with non-silicate alloys, ferrosilicon or silicocalcium and poured into a sand-clay or a ceramic stack mould using ceramic filters. After casting knockout, the cast product undergoes thermal treatment to remove stress without changing the cast structure.
EFFECT: obtaining stage components with high corrosion resistance and wear resistance, resistance to scaling, reduced wear of the stages in the medium of an aggressive formation fluid.
2 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SUBMERSIBLE MULTISTAGE CENTRIFUGAL PUMP AND METHOD OF MAKING IMPELLER AND GUIDE VANE FOR PUMP STAGE | 2014 |
|
RU2580611C2 |
| METHOD FOR FABRICATION OF IMPELLER AND GUIDE APPARATUS OF SUBMERGED MULTISTAGE CENTRIFUGAL PUMP STAGE | 2014 |
|
RU2589566C2 |
| METHOD FOR FABRICATION OF IMPELLER AND GUIDE APPARATUS OF SUBMERGED MULTISTAGE CENTRIFUGAL PUMP STAGE | 2014 |
|
RU2578921C2 |
| SUBMERSIBLE MULTISTAGE CENTRIFUGAL PUMP | 2014 |
|
RU2578924C2 |
| MULTISTAGE ROTARY DOWNHOLE PUMP STAGE AND METHOD OF ITS PRODUCTION | 2013 |
|
RU2570277C2 |
| STAGE OF SUBMERSIBLE MULTI-STAGE CENTRIFUGAL PUMP | 2010 |
|
RU2449176C2 |
| MODULE-SECTION OF SUBMERSIBLE MULTISTAGE CENTRIFUGAL PUMP WITH INTEGRATED WEAR-RESISTANT PLAIN BEARINGS | 2020 |
|
RU2748009C1 |
| BOTTOM HOLE PUMP STAGE AND METHOD OF ITS PRODUCTION | 2010 |
|
RU2457364C1 |
| METHOD TO PRODUCE WORKING MEMBER OF ELECTRICALLY DRIVEN CENTRIFUGAL MULTISTAGE PUMP FOR OIL EXTRACTION | 2008 |
|
RU2382908C1 |
| PART OF STAGE OF SUBMERSIBLE CENTRIFUGAL PUMP AND METHOD OF ITS MANUFACTURE | 2001 |
|
RU2213886C2 |
