CN201539399U - Piston settlement combined protector - Google Patents
Piston settlement combined protector Download PDFInfo
- Publication number
- CN201539399U CN201539399U CN2009200253847U CN200920025384U CN201539399U CN 201539399 U CN201539399 U CN 201539399U CN 2009200253847 U CN2009200253847 U CN 2009200253847U CN 200920025384 U CN200920025384 U CN 200920025384U CN 201539399 U CN201539399 U CN 201539399U
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- assembly
- piston
- guide way
- guide body
- way valve
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- Expired - Fee Related
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Abstract
The utility model relates to a piston settlement combined protector which comprises a head part assembly, a mechanical sealing assembly, a protector shaft, an upper part shell, an internal cylinder sleeve, an upper check valve, a ring-shaped piston body, a lower check valve, an upper part guide body assembly, a protecting shaft tube assembly, a middle part guide body assembly, a middle part shell, a middle part guide body assembly, a lower part shell, a bottom guide body assembly, a bearing shell, a thrust bearing and a base assembly, wherein the upper end of the upper part shell is connected with the head part assembly, and the lower part thereof is connected with the upper part guide body assembly; the upper and the lower ends of the internal cylinder sleeve are respectively installed inside the head part assembly and the upper part guide body assembly; and the ring-shaped piston body is arranged inside a ring-shaped space between the internal cylinder sleeve and the upper part shell. The piston settlement combined protector can be used for various submersible electric pump units, has the characteristics of better adaptability and the like for an inclined well and a high temperature well, and is widely applied to oil pumping technique of petroleum exploitation.
Description
One, technical field
The utility model relates to petroleum production downhole pump piston protector, particularly a kind of piston sedimentation combined type protector that is used for the oil-submersible electric multistage centrifugal pump.
One, background technique
The oil-submersible electric multistage centrifugal pump is widely used in field of petroleum exploitation.He is made up of oil-submersible motor, protector, separator and multistage centrifugal pump.Wherein the effect of protector is very crucial.At present by a kind of decanter type protector, by forming, for the protection of oil-submersible electric pump plays crucial effect,, but the protector of this structure exists that 1. using scope is little, only is applicable to peupendicular hole, and can not uses on high temperature well, inclined shaft and horizontal well; 2. shortcoming or the deficiency etc. of functional reliability.
Three, summary of the invention
The purpose of this utility model provides a kind of piston sedimentation combined type protector, adopts annular piston, annular oil hydraulic cylinder, and the combination of one-way valve, and the shortcoming and defect that overcomes effectively or avoid existing in the above-mentioned technology improves the functional reliability of protector.
Piston sedimentation combined type protector described in the utility model comprises head assembly, mechanical seal assembly, protector axle, upper body, inner cylinder liner, goes up one-way valve, annular piston body, following one-way valve, top guide way assembly, protects central siphon assembly, middle part guide way assembly, central enclosure, middle part guide way assembly, lower case, bottom guide way assembly, bearing housing, thrust bearing, base assembly.The upper end of described upper body links to each other with head assembly, the bottom links to each other with top guide way assembly, the two ends up and down of inner cylinder liner are placed in respectively in head assembly and the top guide way assembly, and the annular piston body is placed in the annular space between inner cylinder liner and the upper body.
Wherein, the two ends up and down of described annular piston body are separately installed with one-way valve and following one-way valve.The described spool of going up one-way valve and following one-way valve has touching lever.Described annular piston body inner and outer wall is separately installed with " O " shape Sealing 9.
Four, description of drawings
Fig. 1 is a kind of example structure schematic representation of the present utility model
Fig. 2 is for pressing A shown in Figure 1 to structural representation
Five, embodiment
Consult accompanying drawing; piston sedimentation combined type protector described in the utility model comprises head assembly 2, mechanical seal assembly 3, protector axle 4, upper body 5, inner cylinder liner 6, goes up one-way valve 7, annular piston body 8, following one-way valve 10, top guide way assembly 11, protects central siphon assembly 12, middle part guide way assembly 13, central enclosure 14,15, middle part guide way assembly 16, lower case 17, bottom guide way assembly 18, bearing housing 19, thrust bearing 20, base assembly.The upper end of upper body 5 links to each other with head assembly 2, and the bottom links to each other with top guide way assembly 11.The two ends up and down of inner cylinder liner 6 are placed in respectively in head assembly 2 and the top guide way assembly 11, and annular piston body 8 is placed in the annular space between inner cylinder liner 6 and the upper body 5.Protector axle 4 from head assembly 2 through the base assembly.
The two ends up and down of annular piston body 8 are separately installed with one-way valve 7 and following one-way valve 10.The spool of last one-way valve 7 and following one-way valve 10 has touching lever 71, valve seat 72, sealing gasket 73 and spring 74.Annular piston body 8 inner and outer walls are separately installed with " O " shape Sealing 9..
The two ends up and down of central enclosure 14,15 link to each other with middle part guide way assembly 13 with top guide way assembly 11 respectively, protect the two ends up and down of central siphon assembly 12 and lay respectively in top guide way assembly 11 and the middle part guide way assembly 13.The two ends up and down of lower case 17 link to each other with bottom guide way assembly 18 with middle part guide way assembly 16 respectively.The two ends up and down of bearing housing 19 link to each other with base assembly 21 with bottom guide way assembly 18 respectively.Annular piston body 8 is placed in the annular space between inner cylinder liner 6 and the upper body 5, and annular piston body 8 inner and outer walls are separately installed with O ring 9.Protecting the two ends up and down of central siphon assembly 12 lays respectively in top guide way assembly 11 and the middle part guide way assembly 13, the two ends up and down of lower case 17 link to each other with bottom guide way assembly 18 with middle part guide way assembly 16 respectively, the two ends up and down of bearing housing 19 link to each other with base assembly 21 with bottom guide way assembly 18 respectively, and thrust bearing 20 is installed in the top of base assembly 21.Head assembly 2 upper ends are equipped with protector 1." O " shape Sealing 9 is installed on piston 8 and the inner cylinder liner 6.
Claims (4)
1. piston sedimentation combined type protector; comprise head assembly; the mechanical seal assembly; the protector axle; upper body; inner cylinder liner; last one-way valve; the annular piston body; following one-way valve; top guide way assembly; protect the central siphon assembly; middle part guide way assembly; central enclosure; middle part guide way assembly; lower case; bottom guide way assembly; bearing housing; thrust bearing; the base assembly; the upper end that it is characterized in that upper body links to each other with head assembly; the bottom links to each other with top guide way assembly; the two ends up and down of inner cylinder liner are placed in respectively in head assembly and the top guide way assembly, and the annular piston body is placed in the annular space between inner cylinder liner and the upper body.
2. sedimentation combined type protector according to claim 1 is characterized in that the two ends up and down of described annular piston body are separately installed with one-way valve and following one-way valve.
3. piston sedimentation combined type protector according to claim 1 is characterized in that the described spool of going up one-way valve and following one-way valve has touching lever.
4. piston sedimentation combined type protector according to claim 1 and 2 is characterized in that described annular piston body inner and outer wall is separately installed with the O ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200253847U CN201539399U (en) | 2009-05-14 | 2009-05-14 | Piston settlement combined protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200253847U CN201539399U (en) | 2009-05-14 | 2009-05-14 | Piston settlement combined protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201539399U true CN201539399U (en) | 2010-08-04 |
Family
ID=42590851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200253847U Expired - Fee Related CN201539399U (en) | 2009-05-14 | 2009-05-14 | Piston settlement combined protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201539399U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032298A (en) * | 2011-10-08 | 2013-04-10 | 王本龙 | Efficient general type piston oil-well pump |
| CN107701153A (en) * | 2016-04-13 | 2018-02-16 | 范秀红 | Electric submersible screw pump |
-
2009
- 2009-05-14 CN CN2009200253847U patent/CN201539399U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032298A (en) * | 2011-10-08 | 2013-04-10 | 王本龙 | Efficient general type piston oil-well pump |
| CN107701153A (en) * | 2016-04-13 | 2018-02-16 | 范秀红 | Electric submersible screw pump |
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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: 20100804 Termination date: 20120514 |