CN203809348U - Electric submersible centrifugal pump with wide displacement range - Google Patents
Electric submersible centrifugal pump with wide displacement range Download PDFInfo
- Publication number
- CN203809348U CN203809348U CN201420198152.2U CN201420198152U CN203809348U CN 203809348 U CN203809348 U CN 203809348U CN 201420198152 U CN201420198152 U CN 201420198152U CN 203809348 U CN203809348 U CN 203809348U
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- Prior art keywords
- pump
- impeller
- centrifugal pump
- pump shaft
- shaft
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Abstract
The utility model relates to an electric submersible pump, in particular to an electric submersible centrifugal pump with a wide displacement range. The bottom of a pump shaft of the pump penetrates into a bottom guide shell, each impeller assembly is composed of five to ten levels of compressed type guide shells and compressed type impellers, a short handle impeller is adopted by the impeller of the uppermost level of each impeller assembly, a righting support is designed on the lower face of each impeller assembly, the outer end of each righting support abuts against the compressed type guide shell of the lowermost level of the corresponding impeller assembly, the righting supports are mounted on the pump shaft in a sleeved mode, a T-shaped alloy bush is embedded at the center of each righting support and is in interference fit with the inner hole of the corresponding righting support, and a T-shaped alloy shaft sleeve is in clearance fit with the corresponding T-shaped alloy bush and can rotate freely in the T-shaped alloy bush. The electric submersible centrifugal pump can be operated in the wide displacement range, can be operated normally in oil wells with the liquid amount lower than 20 cubic meters per day and larger than 5 cubic meters per day, and the impellers of the centrifugal pump can be prevented from being abraded.
Description
Technical field:
The utility model relates to a kind of submersible electric pump, particularly a kind of submersible electric pump centrifugal pump of wide discharge capacity scope.
Background technique:
Submersible electric pump centrifugal pump is the important component part of electric pump unit, and this multistage centrifugal pump is the High Rotation Speed by impeller, crude oil is pumped to from gage well to ground oil collecting system.There is technically following defect in centrifugal pump at present: the centrifugal pump of every kind of model, can only within the scope of narrower, specific discharge capacity, turn round, for oil well liquid-producing ability, higher or lower than centrifugal pump delivery scope, can accelerate the wearing and tearing of centrifugal pump impeller, even damage; Cannot meet in liquid measure in the oil well lower than 30 side/days uses centrifugal pump to produce.
Model utility content:
The technical problems to be solved in the utility model is to provide a kind of submersible electric pump centrifugal pump of wide discharge capacity scope, this device has been realized and can within the scope of wider discharge capacity, have been turned round, can lower than 20 side/days, be greater than in output 5 side/day liquid measure oil well in run well, prevent centrifugal pump impeller wearing and tearing.Having overcome existing submersible electric pump centrifugal pump cannot use in the oil well lower than 30 side/days in liquid measure, the centrifugal pump impeller large deficiency of wearing and tearing.
Technical solution adopted in the utility model is: a kind of submersible electric pump centrifugal pump of wide discharge capacity scope, comprise pump head, pump shaft, pump case and pump seat, and pump shaft penetrates in pump case, and pump head and pump seat are installed in pump case two ends; On the pump shaft that installs pump key, penetrate many group impeller sets, pump shaft bottom penetrates bottom and leads shell, every group of impeller sets leads shell by the compression type of 5 to 10 grades and compression type impeller forms, upper level impeller every group of impeller sets adopts short handle impeller, below every group of impeller sets, design a straightening support, the outer end of this straightening support is withstood the bottom one-level compression type of impeller sets and is led shell, straightening support is sleeved on pump shaft, T font alloy bushing be embedded in straightening support center and with straightening support endoporus interference fit; T font alloy sleeve and T font alloy bushing endoporus Spielpassung also can rotate freely in T font alloy bushing, adjust spacer and be placed in T font alloy sleeve upper end, adjust spacer and be sleeved on pump shaft, adjust spacer upper end and withstand the bottom one-level compression type of impeller sets impeller.
The beneficial effects of the utility model are: the utility model is owing to having adopted the design of short handle impeller, straightening support and adjustment spacer, thereby there is the function that can turn round within the scope of wider discharge capacity, can lower than 20 side/days, be greater than in output 5 side/day liquid measure oil well in run well, prevent centrifugal pump impeller wearing and tearing.
Accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
Embodiment:
As shown in Figure 1, a kind of submersible electric pump centrifugal pump of wide discharge capacity scope, comprises pump head 1, pump shaft 2, pump case 6 and pump seat 12, and pump shaft 2 penetrates in pump case 6, and pump head 1 and pump seat 12 are installed in pump case 6 two ends; On the pump shaft 2 of pump key, penetrate many group impeller sets installing, pump shaft 2 bottoms penetrate bottom and lead shell 11, every group of impeller sets leads shell 5 by the compression type of 5 to 10 grades and compression type impeller 4 forms, upper level impeller every group of impeller sets adopts short handle impeller 3, when short handle impeller 3 guarantees impeller floating, its upper-end surface can not contact with straightening support 10 lower end surfaces of a upper impeller sets.Below every group of impeller sets, design a straightening support 10, the outer end of this straightening support 10 is withstood the bottom one-level compression type of impeller sets and is led shell 5, straightening support 10 is sleeved on pump shaft 2, T font alloy bushing 9 be embedded in straightening support 10 center and with straightening support 10 endoporus interference fit; T font alloy sleeve 8 also can rotate freely with T font alloy bushing 9 endoporus Spielpassung in T font alloy bushing 9, and the T word upper-end surface of T font alloy bushing 9 coordinates with the T word lower end surface of T font alloy sleeve 8, bears upper parts and fluid pressure; Adjust spacer 7 and be placed in T font alloy sleeve 8 upper ends, adjust spacer 7 and be sleeved on pump shaft 2, adjust spacer 7 upper ends and withstand the bottom one-level compression type of impeller sets impeller 4.
Be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model is not limited to the described technological scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; As long as meet, use needs, all within protection domain of the present utility model.
Claims (1)
1. a submersible electric pump centrifugal pump for wide discharge capacity scope, comprises pump head (1), pump shaft (2), pump case (6) and pump seat (12), and pump shaft (2) penetrates in pump case (6), and pump head (1) and pump seat (12) are installed in pump case (6) two ends, it is characterized in that: on the pump shaft (2) of pump key, penetrate many group impeller sets installing, pump shaft (2) bottom penetrates bottom and leads shell (11), every group of impeller sets leads shell (5) by the compression type of 5 to 10 grades and compression type impeller (4) forms, upper level impeller every group of impeller sets adopts short handle impeller (3), below every group of impeller sets, design a straightening support (10), the outer end of this straightening support (10) is withstood the bottom one-level compression type of impeller sets and is led shell (5), straightening support (10) is sleeved on pump shaft (2), T font alloy bushing (9) be embedded in straightening support (10) center and with straightening support (10) endoporus interference fit, T font alloy sleeve (8) also can rotate freely with T font alloy bushing (9) endoporus Spielpassung in T font alloy bushing (9), adjust spacer (7) and be placed in T font alloy sleeve (8) upper end, adjust spacer (7) and be sleeved on pump shaft (2) above, adjust spacer (7) upper end and withstand the bottom one-level compression type impeller (4) of impeller sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198152.2U CN203809348U (en) | 2014-04-22 | 2014-04-22 | Electric submersible centrifugal pump with wide displacement range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198152.2U CN203809348U (en) | 2014-04-22 | 2014-04-22 | Electric submersible centrifugal pump with wide displacement range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809348U true CN203809348U (en) | 2014-09-03 |
Family
ID=51448105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420198152.2U Expired - Fee Related CN203809348U (en) | 2014-04-22 | 2014-04-22 | Electric submersible centrifugal pump with wide displacement range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194775A (en) * | 2016-08-25 | 2016-12-07 | 中国石油天然气股份有限公司 | Ternary composite driving antiscale submersible electric pump |
-
2014
- 2014-04-22 CN CN201420198152.2U patent/CN203809348U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194775A (en) * | 2016-08-25 | 2016-12-07 | 中国石油天然气股份有限公司 | Ternary composite driving antiscale submersible electric pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20150422 |
|
| EXPY | Termination of patent right or utility model |