CN205025754U - Latent oily electric screw bar pump protector - Google Patents
Latent oily electric screw bar pump protector Download PDFInfo
- Publication number
- CN205025754U CN205025754U CN201520607815.6U CN201520607815U CN205025754U CN 205025754 U CN205025754 U CN 205025754U CN 201520607815 U CN201520607815 U CN 201520607815U CN 205025754 U CN205025754 U CN 205025754U
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- China
- Prior art keywords
- protector
- assembly
- neck bush
- electric screw
- oil
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Abstract
The utility model provides a latent oily electric screw bar pump protector, includes reducing spline housing assembly, protector head assembly, mechanical seal assembly, bush seal receptacle, annular piston assembly, protector casing, right set, neck bush assembly, protector axle, protector base assembly. Protector head assembly in order with protector casing and consecutive the connecing of protector base assembly, the protector axle is installed at protector head assembly, the inner chamber center of protector casing and protector base assembly, on the protector axle, the lower extreme is connected with reducing spline housing assembly, there is the retaining ring in protector off -axial portion erection joint in order, the mechanical seal assembly, bush seal receptacle and neck bush assembly, install the annular piston assembly in the annular space of this neck bush assembly and protector casing, be connected in the lower part of neck bush assembly and the protector base assembly, install oiling valve assembly on the protector base assembly. The utility model has the characteristics of high temperature resistant, isolation is sealed effectual, the latent oily electric screw bar pump assembly that can be used to various models.
Description
Technical field
The utility model relates to petroleum production mechanical oil recovery oil-submerged electric screw pump, particularly a kind of oil-submerged electric screw pump protector.
Background technique
Existing a kind of capsule-type protector, its structure is generally capsule retractable compensating type protector structure, and this protector is that petroleum production engineering has played effect, but it also exists following shortcoming or deficiency simultaneously: 1. capsule-type protector structure is complicated; 2. conventional capsule formula protector non-refractory; 3. resistant to elevated temperatures capsule-type protector is expensive; 4. reliability is lower.
Summary of the invention
The purpose of this utility model is to provide a kind of oil-submerged electric screw pump protector of improvement; adopt and form annular space between protector housing and neck bush assembly; the structure of annular piston assembly wander up and down in described annular space, effectively overcomes or avoids the shortcoming and defect that exists in above-mentioned technology.
Oil-submerged electric screw pump protector described in the utility model, comprises reducing spline housing assembly, protector head assembly, mechanical seal assembly, seal with buss seat, annular piston assembly, protector housing, supporting positive cover, neck bush assembly, protector axle, protector base assembly and fuel feeding valve assembly.Described protector head assembly is connected with protector base assembly successively with protector housing in turn, protector axle is arranged on protector head assembly, the lumen centers of protector housing and protector base assembly, protector axle upper, lower end is connected with reducing spline housing assembly, protector axle outside is installed in turn and is connected with back-up ring, mechanical seal assembly, seal with buss seat and neck bush assembly, in the annular space of this neck bush assembly and protector housing, annular piston assembly is installed, the bottom of neck bush assembly is connected with in protector base assembly, protector base assembly is provided with fuel feeding valve assembly.
Wherein, the inner circle of described seal with buss seat matches with neck bush assembly, and cylindrical matches with protector head assembly.The inner circle of described annular piston assembly matches with the cylindrical of neck bush assembly, and cylindrical matches with the internal circular surfaces of protector housing.Annular space is provided with between described protector housing and neck bush assembly.Described protector head assembly is provided with plug and lead pad.Described protector base assembly is provided with fuel feeding valve assembly and fuel feeding valve lead pad.The joint of described protector base assembly and neck bush assembly is provided with pin.Described protector head assembly, seal with buss seat, neck bush assembly and protector base assembly are provided with O ring.
The utility model compared with prior art tool has the following advantages:
(1) inclined shaft and horizontal well is applicable to;
(2) structure is simple, and manufacturing expense is supported;
(3) high temperature well is applicable to;
(4) isolating seal is effective, and reliability is high.
Accompanying drawing explanation
Fig. 1 is a kind of example structure schematic diagram of the present utility model;
Fig. 2 is for by parts annular piston assembly structure schematic diagram in shown in Fig. 1;
Fig. 3 is for by the protector link position structural representation shown in Fig. 1.
embodiment:
Accompanying drawings 1-Fig. 3; a kind of oil-submerged electric screw pump protector, comprises reducing spline housing assembly 1, protector head assembly 2, mechanical seal assembly 4, seal with buss seat 8, annular piston assembly 9, protector housing 10, supporting positive cover 11, neck bush assembly 12, protector axle 13, protector base assembly 15 and fuel feeding valve assembly 16.Protector head assembly 2 is connected with protector base assembly 15 successively with protector housing 10 in turn, protector axle 13 is arranged on protector head assembly 2, the lumen centers of protector housing 10 and protector base assembly 15, protector axle 13 upper, lower end is connected with reducing spline housing assembly 1, protector axle 13 outside is installed in turn and is connected with back-up ring 3(and plays position-limiting action), mechanical seal assembly 4, seal with buss seat 8 and neck bush assembly 12, in this neck bush assembly 12 and the annular space of protector housing 10, annular piston assembly 9 is installed, the bottom of neck bush assembly 12 is connected with in protector base assembly 15, protector base assembly 15 is provided with fuel feeding valve assembly 16.
The inner circle of seal with buss seat 8 matches with neck bush assembly 12, and cylindrical matches with protector head assembly 2.The inner circle of annular piston assembly 9 matches with the cylindrical of neck bush assembly 12, and cylindrical matches with the internal circular surfaces of protector housing 10.Annular space is provided with between described protector housing 10 and neck bush assembly 12.Annular piston assembly 9 is arranged in the annular space that formed between protector housing 10 and neck bush assembly 12, can wander up and down, to the redeeming of expanding with heat and contract with cold of protector internal lubrication oil.Protector head assembly 2 is provided with plug 5 and lead pad 6.Protector base assembly 15 is provided with fuel feeding valve assembly 16 and fuel feeding valve lead pad 17.Protector base assembly 15 is provided with pin 14 with the joint of neck bush assembly 12.Described protector head assembly 2, seal with buss seat 8, neck bush assembly 12 and protector base assembly 15 are provided with O ring 7.
Annular piston assembly 11 is made up of valve seat 11-1, lead pad 11-2, valve seat O ring 11-3, spool 11-4, spring 11-5, annular piston matrix 11-6.
During operation, the top of oil-submerged electric screw pump protector 22 installs universal joint 21, screw pump 20 successively, and its underpart installs thrust short circuit 23, retarder 24, motor protecter 25, oil-submersible motor 26 successively.Above-mentioned each parts composition oil-submerged electric screw pump unit, both can form electronic oil recovery unit, can be used for again petroleum production artificial lift.
Claims (8)
1. an oil-submerged electric screw pump protector, comprise reducing spline housing assembly, protector head assembly, mechanical seal assembly, seal with buss seat, annular piston assembly, protector housing, supporting positive cover, neck bush assembly, protector axle, protector base assembly and fuel feeding valve assembly, it is characterized in that described protector head assembly is connected with protector base assembly successively with protector housing in turn, protector axle is arranged on protector head assembly, the lumen centers of protector housing and protector base assembly, protector axle upper, lower end is connected with reducing spline housing assembly, protector axle outside is installed in turn and is connected with back-up ring, mechanical seal assembly, seal with buss seat and neck bush assembly, in the annular space of this neck bush assembly and protector housing, annular piston assembly is installed, the bottom of neck bush assembly is connected with in protector base assembly, protector base assembly is provided with fuel feeding valve assembly.
2. oil-submerged electric screw pump protector according to claim 1, it is characterized in that the inner circle of described seal with buss seat matches with neck bush assembly, cylindrical matches with protector head assembly.
3. oil-submerged electric screw pump protector according to claim 1, it is characterized in that the inner circle of described annular piston assembly matches with the cylindrical of neck bush assembly, cylindrical matches with the internal circular surfaces of protector housing.
4. oil-submerged electric screw pump protector according to claim 1, is characterized in that being provided with annular space between described protector housing and neck bush assembly.
5. oil-submerged electric screw pump protector according to claim 1, is characterized in that described protector head assembly is provided with plug and lead pad.
6. oil-submerged electric screw pump protector according to claim 1, is characterized in that described protector base assembly is provided with fuel feeding valve assembly and fuel feeding valve lead pad.
7. the oil-submerged electric screw pump protector according to claim 1 or 6, is characterized in that the joint of described protector base assembly and neck bush assembly is provided with pin.
8. oil-submerged electric screw pump protector according to claim 1, is characterized in that described protector head assembly, seal with buss seat, neck bush assembly and protector base assembly are provided with O ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520607815.6U CN205025754U (en) | 2015-08-13 | 2015-08-13 | Latent oily electric screw bar pump protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520607815.6U CN205025754U (en) | 2015-08-13 | 2015-08-13 | Latent oily electric screw bar pump protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205025754U true CN205025754U (en) | 2016-02-10 |
Family
ID=55258292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520607815.6U Active CN205025754U (en) | 2015-08-13 | 2015-08-13 | Latent oily electric screw bar pump protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205025754U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059041A (en) * | 2019-12-30 | 2020-04-24 | 辽宁瑞邦石油技术发展有限公司 | Annular piston protector |
| WO2021207703A1 (en) * | 2020-04-09 | 2021-10-14 | Flir Commercial Systems, Inc. | Annular cryocooler compressor systems and methods |
| US11635244B2 (en) | 2017-10-11 | 2023-04-25 | Teledyne Flir Commercial Systems, Inc. | Cryocooler controller systems and methods |
-
2015
- 2015-08-13 CN CN201520607815.6U patent/CN205025754U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11635244B2 (en) | 2017-10-11 | 2023-04-25 | Teledyne Flir Commercial Systems, Inc. | Cryocooler controller systems and methods |
| CN111059041A (en) * | 2019-12-30 | 2020-04-24 | 辽宁瑞邦石油技术发展有限公司 | Annular piston protector |
| WO2021207703A1 (en) * | 2020-04-09 | 2021-10-14 | Flir Commercial Systems, Inc. | Annular cryocooler compressor systems and methods |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |