CN204283335U - A kind of Multifunctional single pass valve - Google Patents
A kind of Multifunctional single pass valve Download PDFInfo
- Publication number
- CN204283335U CN204283335U CN201420679707.5U CN201420679707U CN204283335U CN 204283335 U CN204283335 U CN 204283335U CN 201420679707 U CN201420679707 U CN 201420679707U CN 204283335 U CN204283335 U CN 204283335U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- spool
- valve
- valve body
- work
- 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
Links
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 239000012530 fluid Substances 0.000 abstract description 32
- 238000002347 injection Methods 0.000 abstract description 13
- 239000007924 injection Substances 0.000 abstract description 13
- 239000003129 oil well Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Sliding Valves (AREA)
Abstract
The utility model is a kind of Multifunctional single pass valve, and its top connection is connected with valve body upper end, and top connection and valve body are hollow structure; Inside, valve body upper end is provided with the first valve seat, has the first open-work in the middle part of the first valve seat, and valve body lower end inside is provided with the second valve seat, has the second open-work in the middle part of the second valve seat; Be provided with the spool closing the first open-work or the second open-work in valve body, spool is between the first valve seat and the second valve seat; Be provided with between spool and the second valve seat and push spool to first valve seat and the flexible member of closed first open-work; In valve body, be provided with the sleeve controlling spool shift position between the first valve seat and the second valve seat, sleeve inside wall is provided with sliding rail; Spool is positioned at sleeve inner, spool is fixed with track pin, and track pin is positioned at sliding rail.The utility model, when injecting fluid in oil well, can switch to speed limit injection way or high speed injection way as required, thus simplify execute-in-place process.
Description
Technical field
The utility model be about a kind of in oil well, inject fluid time the device that uses, particularly relate to a kind of Multifunctional single pass valve.
Background technology
Oil well is due to long exploitation, inevitably need to carry out various well stimulation, also inevitably have in various fluid injection wells simultaneously, because the speed injecting fluid is not subject to the control of designer, cause the effect of various well stimulation to be made a discount.Have employed in prior art can the ball-and-seat of limit fluid Negotiation speed, but inject fluid if need to change into oil well high speed, then the ball-and-seat of existing limit fluid Negotiation speed can not meet the demands, need to change valve body, thus add the complexity of site work.
Thus, the present inventor relies on experience and the practice of being engaged in relevant industries for many years, proposes a kind of Multifunctional single pass valve, to overcome the defect of prior art.
Utility model content
The purpose of this utility model is to provide a kind of Multifunctional single pass valve, when injecting fluid in oil well, can switch to speed limit injection way or high speed injection way as required, thus simplifying execute-in-place process.
The purpose of this utility model is achieved in that a kind of Multifunctional single pass valve, and it comprises top connection and valve body, and described top connection is connected with valve body upper end, and top connection and valve body are hollow structure; Inside, described valve body upper end is provided with the first valve seat, and have the first open-work in the middle part of described first valve seat, valve body lower end inside is provided with the second valve seat, has the second open-work in the middle part of described second valve seat; Be provided with the spool closing the first open-work or the second open-work in valve body, described spool is between the first valve seat and the second valve seat; Be provided with between spool and the second valve seat and push spool to first valve seat and the flexible member of closed first open-work; In valve body, be provided with the sleeve controlling spool shift position between the first valve seat and the second valve seat, described sleeve inside wall is provided with sliding rail; Described spool is positioned at sleeve inner, spool is fixed with track pin, and described track pin is positioned at sliding rail.
In a better embodiment of the present utility model, sliding rail comprises and is located on sleeve lining and the backstop groove be correspondingly set up and down and locating slot; Backstop groove is made up of serrated slot; Sawtooth is arranged towards locating slot direction; Locating slot by with quill to parallel and in circumference spaced multiple long rail groove and short rail groove form; Spacer portion width between described each long and short rail groove is identical with the width of each sawtooth, and crown and the spacer portion of described sawtooth are oppositely arranged, and the top of each spacer portion is provided with the inclined-plane contrary with sawtooth teeth directional.
In a better embodiment of the present utility model, spool is made up of upper and lower two hemispheres; Upper and lower hemisphere coordinates with first, second open-work respectively; Described track pin thread is connected on spool.
In a better embodiment of the present utility model, top connection is connected with valve body screw thread; First valve seat is connected with valve body screw thread respectively with the second valve seat.
In a better embodiment of the present utility model, the flexible member adopted is spring.
From the above mentioned, Multifunctional single pass valve of the present utility model is provided with the sleeve of band sliding rail between the first and second valve seats, can control the position of spool movement between two valve seats.When the track pin on spool is positioned at long rail groove, spool can move down into the position of closed second open-work, when the track pin on spool is positioned at short rail groove, spool can not move to the position of closed second open-work, thus speed limit injection way or high speed injection way can be switched to as required, simplify execute-in-place process.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1: be the cross-sectional view of the utility model Multifunctional single pass valve.
Fig. 2 A: be the expansion schematic diagram of sliding rail on the utility model rail set.
Fig. 2 B: be the motion schematic diagram of track pin in the utility model in sliding rail.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and detailed description of the invention of the present utility model is described.
As shown in Figure 1, the utility model provides a kind of Multifunctional single pass valve 10, comprises top connection 1 and valve body 2, and top connection 1 is connected with valve body 2 upper end, and top connection 1 and valve body 2 are hollow structure; Inside, valve body 2 upper end is provided with in the middle part of the first valve seat 3, first valve seat 3 and has the first open-work 31, and inside, valve body 2 lower end is provided with in the middle part of the second valve seat 4, second valve seat 4 and has the second open-work 41; Be provided with the spool 5 closing the first open-work 31 or the second open-work 41 in valve body 2, spool 5 is between the first valve seat 3 and the second valve seat 4; Be provided with between spool 5 and the second valve seat 4 and push spool 5 to first valve seat 3 and the flexible member 6 of closed first open-work 31; In valve body 2, be provided with the sleeve 7 controlling spool 5 shift position between the first valve seat 3 and the second valve seat 4, sleeve 7 inside wall is provided with sliding rail 71; It is inner that spool 5 is positioned at sleeve 7, and spool 5 is fixed with track pin 51, track pin 51 is positioned at sliding rail 71.Spool 5, by the control of sliding rail 71, can switch between the position closing the second open-work and the position can not closing the second open-work.
Concrete, as shown in Figure 2 A, sliding rail 71 comprises and is located on sleeve 7 inwall and the backstop groove 711 be correspondingly set up and down and locating slot 712; Backstop groove 711 is made up of serrated slot; Sawtooth is arranged towards locating slot 712 direction; Locating slot 712 is by axially parallel with sleeve 7 and form in the spaced multiple long rail groove 7121 of circumference and short rail groove 7122; Spacer portion width between each long and short rail groove is identical with the width of each sawtooth, and crown and the spacer portion of sawtooth are oppositely arranged, and the top of each spacer portion is provided with the inclined-plane 7123 contrary with sawtooth teeth directional.
Multifunctional single pass valve 10 of the present utility model is with in oil pipe lower going-into-well or be contained in ground installation, and spool 5 is positioned at the upper end of backstop groove 711 when initial position, closed by the first open-work 31 at this position spool 5; When starting to inject fluid, spool 5 moves down under the pressure of fluid, track pin 51 moves down along sliding rail 71, as shown in Figure 2 B, track pin 51 enters in long rail groove 7121 through the guiding of the top bevel 7123 of spacer portion, fluid is entered in valve body 2 by the first open-work 31, and flows out valve body 2 by the second open-work 41.If fluid exceedes the injection rate of restriction, spool 5 can move to bottom under fluid pressure, now track pin 51 moves to long rail groove 7121 bottom, in this position, second open-work 41 is closed by spool 5, thus fluid can not continue through valve body 2, the injection rate of fluid declines thereupon, the pressure of fluid matasomatism on spool 5 reduces, spool moves up under the effect of flexible member 6, fluid can continue through the second open-work 41, makes fluid inject pit shaft within the scope of certain flow rate, thus ensure that construction quality with this.When borehole pressure increases sharply, the fluid of injection upwards flows under borehole pressure effect, and now spool 5 moves up closed first open-work 31 under the effect of fluid pressure and flexible member 6, the generation of the excessive and gas blowout accident of anti-fluid.If need to inject fluid at a high speed, now track pin 51 is positioned at long rail groove 7121 (as shown in Figure 2 B), stop fluid injecting, spool 5 moves up under flexible member 6 acts on, the guiding through the serrated slot inclined-plane of backstop groove 711 and get back to backstop groove 711 top; Again start to inject fluid, track pin 51 moves downward, through the top bevel 7123 of spacer portion guiding and enter in short rail groove 7122 (as shown in Figure 2 B); Even if the speed injecting fluid constantly increases, track pin 51 moves to short rail groove 7122 bottom, and the second open-work 41 can not be closed in this position by spool 5, so the speed injecting fluid is unrestricted.When stopping fluid injecting, track pin 51 is returned to backstop groove 711 top, and after again starting to inject fluid, this Multifunctional single pass valve 10 is switched to again speed limit and injects fluid mode, so can inject at speed limit fluid and switch between high-velocity fluid injection way.
Further, spool 5 is made up of upper and lower two hemispheres; Upper and lower hemisphere coordinates with first, second open-work 31,41 respectively, adopts sphere to produce better sealing effectiveness; Track pin 51 can have one or more, if adopt multiple track pin 51, each track pin 51 corresponds to the slip side that corresponding sliding rail 71 is distributed in spool 5, and track pin 51 adopts and is threaded on spool 5, for convenience detach.Top connection 1 adopts with valve body 2 and is threaded; First valve seat 3 is threaded with valve body 2 respectively with the second valve seat 4.
Multifunctional single pass valve of the present utility model can ensure that fluid enters pit shaft in certain speed range, and not needing increases extra-pay, ensure that oil reservoir preserves from, and does not also increase task difficulty simultaneously, also has when pressure increases out of control, the function of well blowout preventing; Speed limit injection way or high speed injection way can be switched to as required, simplify execute-in-place process.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.
Claims (5)
1. a Multifunctional single pass valve, described Multifunctional single pass valve comprises top connection and valve body, and described top connection is connected with valve body upper end, and top connection and valve body are hollow structure; Inside, described valve body upper end is provided with the first valve seat, and have the first open-work in the middle part of described first valve seat, valve body lower end inside is provided with the second valve seat, has the second open-work in the middle part of described second valve seat; Be provided with the spool closing the first open-work or the second open-work in valve body, described spool is between the first valve seat and the second valve seat; Be provided with between spool and the second valve seat and push spool to first valve seat and the flexible member of closed first open-work; It is characterized in that: in valve body, be provided with the sleeve controlling spool shift position between the first valve seat and the second valve seat, described sleeve inside wall is provided with sliding rail; Described spool is positioned at sleeve inner, spool is fixed with track pin, and described track pin is positioned at sliding rail.
2. Multifunctional single pass valve as claimed in claim 1, is characterized in that: described sliding rail comprises and is located on sleeve lining and the backstop groove be correspondingly set up and down and locating slot; Backstop groove is made up of serrated slot; Sawtooth is arranged towards locating slot direction; Locating slot by with quill to parallel and in circumference spaced multiple long rail groove and short rail groove form; Spacer portion width between described each long and short rail groove is identical with the width of each sawtooth, and crown and the spacer portion of described sawtooth are oppositely arranged, and the top of each spacer portion is provided with the inclined-plane contrary with sawtooth teeth directional.
3. Multifunctional single pass valve as claimed in claim 1, is characterized in that: described spool is made up of upper and lower two hemispheres; Upper and lower hemisphere coordinates with first, second open-work respectively; Described track pin thread is connected on spool.
4. Multifunctional single pass valve as claimed in claim 1, is characterized in that: described top connection is connected with valve body screw thread; First valve seat is connected with valve body screw thread respectively with the second valve seat.
5. the Multifunctional single pass valve as described in claim arbitrary in Claims 1-4, is characterized in that: described flexible member is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679707.5U CN204283335U (en) | 2014-11-07 | 2014-11-07 | A kind of Multifunctional single pass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679707.5U CN204283335U (en) | 2014-11-07 | 2014-11-07 | A kind of Multifunctional single pass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283335U true CN204283335U (en) | 2015-04-22 |
Family
ID=52866510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420679707.5U Expired - Fee Related CN204283335U (en) | 2014-11-07 | 2014-11-07 | A kind of Multifunctional single pass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228599A (en) * | 2020-12-02 | 2021-01-15 | 深圳市洛奇机电科技有限公司 | Automatic compensation type pressure retaining valve |
-
2014
- 2014-11-07 CN CN201420679707.5U patent/CN204283335U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228599A (en) * | 2020-12-02 | 2021-01-15 | 深圳市洛奇机电科技有限公司 | Automatic compensation type pressure retaining valve |
| CN112228599B (en) * | 2020-12-02 | 2021-05-14 | 杭州青流液压设备制造有限公司 | Automatic compensation type pressure retaining valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |