CN201461542U - Guide wheel pre-tensioning device of electric submersible pump - Google Patents
Guide wheel pre-tensioning device of electric submersible pump Download PDFInfo
- Publication number
- CN201461542U CN201461542U CN2009200252859U CN200920025285U CN201461542U CN 201461542 U CN201461542 U CN 201461542U CN 2009200252859 U CN2009200252859 U CN 2009200252859U CN 200920025285 U CN200920025285 U CN 200920025285U CN 201461542 U CN201461542 U CN 201461542U
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- CN
- China
- Prior art keywords
- guide wheel
- hydraulic
- submersible electric
- electric pump
- hydraulic piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a guide wheel pre-tensioning device of a electric submersible pump, which comprises a tensioning tool, a check valve, a compression nut, a hydraulic piston, a locking ring, a compression tube, a guide wheel and a pump shell. The guide wheel pre-tensioning device is characterized in that the guide wheel (12) is arranged in the pump shell (13), the compression tube (10), the locking ring (9), the screwing tool (1) and the compression nut (5) are arranged on the guide wheel (12) in sequence, and the check valve (4) is arranged on the compression nut (5) and is connected with a hydraulic pump (2). The utility model has the advantages of accurately controlling the guide wheel pre-tensioning force of the electric submersible pump, being operated easily and conveniently and reducing the labor intensity, and is mainly applied in the assembly process of the guide wheel of the electric submersible pump.
Description
One, technical field
The utility model relates to petroleum production submersible electric pump auxiliary facility, particularly a kind of submersible electric pump guide wheel pre-tightening apparatus.
Two, background technique
The pretightening force of submersible electric pump guide wheel, be directly connected to its installation and service property (quality), impacting force is too little, owing to the variation of working environment and stress, the multistage centrifugal pump guide wheel might become flexible and cause unit vibration aggravation, guide vane wheel wearing and tearing aggravation and then cause the unit premature failure Electric Submersible Pump Unit in the running of down-hole.If pretightening force is excessive, then can in assembly process, cause the damage of component, as thread gluing, guide wheel pressure break etc.It is the thread that utilizes between pump head and the pump case that existing guide wheel compresses mode, tightens pump head with thread screw on and-off machine, directly to the guide wheel prestressing.Compress though this compressing method also is usually used in guide wheel, exist following shortcoming or deficiency: 1. be the notion of the impacting force amount of not having, only control the size of pretightening force by the decrement of control guide wheel with assembler's experience; 2. because the difference of different pump type Guiding wheel structure differences and related components material property is controlled very inaccuracy of pretightening force by the decrement of control guide wheel, there is assembly quality hidden danger.
Three, summary of the invention
The purpose of this utility model provides a kind of submersible electric pump guide wheel pre-tightening apparatus, adopts this device can control the pretightening force of guide wheel accurately, can effectively avoid above-mentioned the deficiencies in the prior art or defective.
A kind of submersible electric pump guide wheel pre-tightening apparatus, comprise tightening tool, one-way valve, gland nut, hydraulic piston, locking ring, compress pipe, guide wheel and pump case, it is characterized in that described guide wheel is installed in the pump case, be equipped with in turn on the guide wheel to compress on pipe, eng ring, tightening tool, hydraulic piston and gland nut, the gland nut one-way valve is installed, one-way valve is connected with oil hydraulic pump.
Wherein, described locking ring one end is provided with the notch of annular spread.The outer end of described hydraulic nut, an end of hydraulic piston is installed in the annular cylinder of hydraulic nut.Described one-way valve is installed on the underpart of hydraulic nut, and an end of hydraulic piston is installed in the annular cylinder of hydraulic nut.The other end of described hydraulic piston is provided with opening slot.Described tightening tool is a hollow stem structure, and its inner end is axially installed with dead man, and this driving lever is by the opening slot of hydraulic piston, stings with the notch of locking ring to cooperate.Described leading is inserted in compaction tool hollow.Described one-way valve is connected with oil hydraulic pump by high pressure hose.On the described hydraulic piston Sealing is installed.
The utility model has following advantage compared with prior art:
1, can amass by the pressure and the cutting of oil hydraulic cylinder of hydraulic oil in the oil hydraulic cylinder, can control the size of guide wheel pretightening force accurately;
2, the excessive or too small phenomenon of the pretightening force that does not exist prior art to occur.
Four, description of drawings
Fig. 1 is a kind of structural representation figure of the utility model embodiment
Five, embodiment:
Consult accompanying drawing, a kind of submersible electric pump guide wheel pre-tightening apparatus, comprise tightening tool, one-way valve, gland nut, hydraulic piston, locking ring, compress pipe, guide wheel and pump case, guide wheel 12 is installed in the pump case 13, be equipped with in turn on the guide wheel 12 to compress on pipe 10, eng ring 9, tightening tool 1, hydraulic piston 8 and gland nut 5, the gland nut 5 one-way valve 4 is installed, one-way valve 4 is connected with oil hydraulic pump 2.
Locking ring 9 one ends are provided with the notch of annular spread.The outer end of hydraulic nut 5, an end of hydraulic piston 8 is installed in the annular cylinder of hydraulic nut 5.One-way valve 4 is installed on the underpart of hydraulic nut 5, and an end of hydraulic piston 8 is installed in the annular cylinder of hydraulic nut 5.The other end of hydraulic piston 8 is provided with opening slot.Tightening tool 1 is a hollow stem structure, and its inner end is axially installed with dead man, and this dead man matches with the notch of locking ring 9 by the opening slot of hydraulic piston 8.11 of guide wheel 12 is inserted in compaction tool 1 hollow.One-way valve 4 is connected with oil hydraulic pump 2 by high pressure hose 3.Sealing 6 is installed on the hydraulic piston 8.
During operation, oil hydraulic pump 2 provides high pressure oil to enter in the annular cylinder of hydraulic nut 5 by high pressure hose 3 and one-way valve 4, and then promotes hydraulic piston 8 and advance forward, compresses pipe 10 and guide wheel 12 until pressure is passed to successively, thereby guide wheel is implemented prestressing.Tightening tool 1 rotatable lock jack panel 9 withstands its right side and compresses pipe 10, in case the impacting force unloading.The right-hand member of hydraulic piston 8 has opening slot, so that tightening tool 1 rotates in opening slot, thereby tightens locking ring 9.
Claims (9)
1. submersible electric pump guide wheel pre-tightening apparatus, comprise tightening tool, one-way valve, gland nut, hydraulic piston, locking ring, compress pipe, guide wheel and pump case, it is characterized in that described guide wheel (12) is installed in the pump case (13), be equipped with in turn on the guide wheel (12) to compress on pipe (10), eng ring (9), tightening tool (1), hydraulic piston (8) and gland nut (5), the gland nut (5) one-way valve (4) is installed, one-way valve (4) is connected with oil hydraulic pump (2).
2. submersible electric pump guide wheel pre-tightening apparatus according to claim 1 is characterized in that described locking ring (9) one ends are provided with the notch of annular spread.
3. submersible electric pump guide wheel pre-tightening apparatus according to claim 1 is characterized in that the outer end of described hydraulic nut (5), and an end of hydraulic piston (8) is installed in the annular cylinder of hydraulic nut (5).
4. submersible electric pump guide wheel pre-tightening apparatus according to claim 1 is characterized in that described one-way valve (4) is installed on the underpart of hydraulic nut (5), and an end of hydraulic piston (8) is installed in the annular cylinder of hydraulic nut (5).
5. according to claim 1 or 4 described submersible electric pump guide wheel pre-tightening apparatus, it is characterized in that the other end of described hydraulic piston (8) is provided with opening slot.
6. submersible electric pump guide wheel pre-tightening apparatus according to claim 1, it is characterized in that described tightening tool (1) is a hollow stem structure, its inner end is axially installed with dead man, and this dead man matches with the notch of locking ring (9) by the opening slot of hydraulic piston (8).
7. submersible electric pump guide wheel pre-tightening apparatus according to claim 1 is characterized in that the central protuberance (11) of described guide wheel (12), is inserted in compaction tool (1) hollow.
8. submersible electric pump guide wheel pre-tightening apparatus according to claim 1 is characterized in that described one-way valve (4) is connected with oil hydraulic pump (2) by high pressure hose (3).
9. according to claim 1 or 6 described submersible electric pump guide wheel pre-tightening apparatus, it is characterized in that being equipped with on the described hydraulic piston (8) Sealing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200252859U CN201461542U (en) | 2009-05-18 | 2009-05-18 | Guide wheel pre-tensioning device of electric submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200252859U CN201461542U (en) | 2009-05-18 | 2009-05-18 | Guide wheel pre-tensioning device of electric submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461542U true CN201461542U (en) | 2010-05-12 |
Family
ID=42388896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200252859U Expired - Fee Related CN201461542U (en) | 2009-05-18 | 2009-05-18 | Guide wheel pre-tensioning device of electric submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227220A (en) * | 2021-12-06 | 2022-03-25 | 北京航天动力研究所 | Liquid rocket engine jumbo size high-pressure casing screw thread frock of screwing up |
-
2009
- 2009-05-18 CN CN2009200252859U patent/CN201461542U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227220A (en) * | 2021-12-06 | 2022-03-25 | 北京航天动力研究所 | Liquid rocket engine jumbo size high-pressure casing screw thread frock of screwing up |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120518 |