CN204283327U - One-way valve - Google Patents
One-way valve Download PDFInfo
- Publication number
- CN204283327U CN204283327U CN201420678371.0U CN201420678371U CN204283327U CN 204283327 U CN204283327 U CN 204283327U CN 201420678371 U CN201420678371 U CN 201420678371U CN 204283327 U CN204283327 U CN 204283327U
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- CN
- China
- Prior art keywords
- spool
- operating position
- track groove
- liquid outlet
- tractive unit
- 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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- 239000007788 liquid Substances 0.000 claims abstract description 62
- 239000012530 fluid Substances 0.000 claims abstract description 55
- 239000003129 oil well Substances 0.000 abstract description 10
- 239000003814 drug Substances 0.000 description 25
- 230000000694 effects Effects 0.000 description 11
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000000638 stimulation Effects 0.000 description 4
- 230000009172 bursting Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Multiple-Way Valves (AREA)
Abstract
The utility model provides a pair of check valve, it includes: a body having a first end and a second end for connection to an external pipe; an inner cavity disposed in the body and located between the first end and the second end, the inner cavity having a liquid inlet in communication with the first end and a liquid outlet in communication with the second end; the valve core is arranged in the inner cavity and provided with a first valve surface and a second valve surface which are opposite to each other, and the valve core is provided with a first working position at which the first valve surface closes the liquid inlet, a second working position at which liquid flowing in from the liquid inlet can flow out from the liquid outlet, and a third working position at which the second valve surface closes the liquid outlet; and the elastic piece is arranged in the inner cavity and applies elastic force for maintaining the valve core at the first working position to the valve core. The utility model provides a pair of check valve has realized the purpose that can get into the speed restriction of oil well at the certain limit with the fluid.
Description
Technical field
The present invention relates to oil and gas exploitation field, particularly relate to a kind of one way valve.
Background technology
Oil well, due to long exploitation, inevitably will carry out various well stimulation, also inevitably has in various fluid injection wells simultaneously.In order to improve the validity of well stimulation, must limit the speed of the fluid entering oil well, otherwise too fast flow velocity can damage oil reservoir, and the effect of well stimulation can be reduced.
At present, control primarily of pump truck driver the speed injecting fluid in oil well, pump work is in order to catch up with speed sometimes, and the speed injecting fluid in oil well will be very fast, and the effect of well stimulation will be made like this to have a greatly reduced quality.Thisly at present transferred to by the speeds control of fluid the pattern manually come to be easy to make this requirement of the speeds control of fluid become a mere formality completely and real effective execution cannot be obtained.So need to find a kind of speeds control of fluid that can make to obtain the method implemented.
Utility model content
The purpose of this utility model is to provide a kind of speed restriction one way valve within the specific limits that fluid can be entered oil well.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize: a kind of one way valve, and it comprises: the body with first end and the second end, and described first end and described second end are for being connected external pipe; To be arranged in described body and inner chamber between described first end and described second end, described inner chamber has the inlet be connected with described first end and the liquid outlet be connected with described second end; Be arranged at the spool in described inner chamber, described spool have back to the first valve face and the second valve face, the second operating position that described spool has the first operating position that described first valve face closes described inlet, the liquid that flows into from described inlet can flow out from described liquid outlet and described second valve face close the 3rd operating position of described liquid outlet; Be arranged at the elastic component in described inner chamber, described elastic component applies to described spool the elastic force maintaining described first operating position.
Preferably, it comprises: to be arranged in described inner chamber and track between described inlet and described liquid outlet; On the sidewall of described spool, outstanding described first valve face and described second valve face are formed with tractive unit, and described tractive unit stretches into described track and can along described rail moving; Described track guides described spool in described first operating position by described tractive unit, moves between described second operating position and described 3rd operating position.
Preferably, described track comprises the change rail portion near described inlet, with the track groove extended to described liquid outlet direction from described change rail portion, described track groove comprise length not wait the first track groove and the second track groove, described change rail portion can make described tractive unit switch between described first track groove and described second track groove.
Preferably, the length of described first track groove is greater than the length of described second track groove, and when described tractive unit moves along described first track groove, described tractive unit can guide described spool to move between described second operating position and described 3rd operating position; When described tractive unit moves along described second track groove, described tractive unit can guide described spool to be in described second operating position.
Preferably, described change rail portion comprises the first inclined-plane near described inlet, and the second inclined-plane to connect with described second track groove Xiang Ling, when described tractive unit moves along the centerline direction of described first track groove to described inlet, described first inclined-plane makes described tractive unit depart from the centerline direction of described first track groove and arrive described first operating position along described first inclined-plane; When described spool deviate under fluid matasomatism described first operating position move to described second operating position time, described second inclined-plane guides described tractive unit to enter described second track groove along described second inclined-plane.
Preferably, it comprises: be arranged at the relief hole on described body, and described relief hole and described intracavity inter-connection, described relief hole is provided with pressure release valve.
Preferably, described liquid outlet have near described inner chamber arrival end and back to the port of export, the internal diameter of described liquid outlet reduces from described arrival end to the described port of export.
The beneficial effect of the one way valve that the utility model provides is: first, by the spool that arranges in chamber body and elastic component, described spool is pressed on described inlet and makes described spool close described inlet by this elastic component, after ground flow connects, fluid is squeezed into the outside in pipeline, when fluid pressure reaches the opening pressure of spool, spool and inlet are separated, fluid enters in pit shaft through liquid outlet, when flow velocity exceedes maximum speed limit, spool moves to liquid outlet direction thus closes liquid outlet under fluid pressure action, fluid can not flow in pit shaft, when stopping squeezing into fluid from ground, leave liquid outlet at the effect bottom spool of elastic component to move to inlet direction, at this moment can continue again to inject fluid, thus achieve the speed restriction object within the specific limits that fluid can be entered oil well by this one way valve, when in pit shaft, pressure increases suddenly, under the effect of fluid and elastic component, spool moves to inlet one end and closes this inlet, thus prevent fluid excessive, prevent the generation of gas blowout accident, secondly, realized the restriction of the flow velocity to different fluid by the track arranging different length, can ensure that the fluid injecting pit shaft injects pit shaft in the flow rates of design, oil reservoir is played a protective role, avoid the generation occurring bursting the existing picture of oil reservoir, finally, relief hole arranges pressure release valve, after having noted medicament, during dismounting pipeline, first can open pressure release valve, dismantle pipeline again after equal pressure release, the safety of site operation personnel can be ensured like this.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 structural representation of the present utility model;
Fig. 2 valve core movement track of the present utility model schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model provides a kind of one way valve, and it comprises: the body 10 with first end 11 and the second end 13, and described first end 11 and described second end 13 are for being connected external pipe; To be arranged in described body 10 and inner chamber 15 between described first end 11 and described second end 13, described inner chamber 15 has the inlet 17 be connected with described first end 11 and the liquid outlet 17 be connected with described second end 13; Be arranged at the spool 21 in described inner chamber 15, described spool 21 has back to the first valve face 33 and the second valve face 35, and described spool 21 has described first valve face 33 and closes the first operating position of described inlet 17, close the 3rd operating position of described liquid outlet 19 from the second operating position that the liquid of described inlet 17 inflow can flow out from described liquid outlet 19 and described second valve face 35; Be arranged at the elastic component 23 in described inner chamber 15, apply to described spool 21 elastic force maintaining described first operating position.
A kind of one way valve that the utility model provides, by spool 21 and the elastic component 23 of setting in body 10 inner chamber 15, described spool 21 is pressed on described inlet 17 and makes described spool 21 close described inlet 17 by this elastic component 23, after ground flow connects, fluid is squeezed into the outside in pipeline, when fluid pressure reaches the opening pressure of spool 21, spool 21 and inlet 17 are separated, fluid enters in pit shaft through liquid outlet 19, when flow velocity exceedes maximum speed limit, spool 21 moves to liquid outlet 19 direction thus closes liquid outlet 19 under fluid pressure action, fluid can not flow in pit shaft, thus achieve the speed restriction object within the specific limits that fluid can be entered oil well by this one way valve.
A kind of one way valve that the utility model provides can be applied to the field sampling of oil well.
As shown in Figure 1, in the present embodiment, body 10 has first end 11 and the second end 13, and this first end 11 and this second end 13, for being connected external pipe, make body 10 can be communicated with the fluid-phase flowed in external pipe with the second end 13 by this first end 11.This first end 11 and the second end 13 can be undertaken by slips with the connection of external pipe, but connected mode is not limited thereto, and can be also other connected modes, such as, be threaded.
Between this first end 11 and second end 13, inner chamber 15 is provided with in this body 10, this inner chamber 15 has the inlet 17 be connected with first end 11 and the liquid outlet 19 be connected with the second end 13, fluid in external pipe is entered in inner chamber 15 by this inlet 17 also to flow out from liquid outlet 19, flow to again in exterior tubing by the second end 13.This liquid outlet 19 have near this inner chamber 15 arrival end 29 and back to the port of export 31, the internal diameter of this liquid outlet 19 reduces from arrival end 29 to the port of export 31.
Spool 21 is provided with in this inner chamber 15, this spool 21 has the first valve face 33 and the second valve face 35, and this spool 21 has the first valve face 33 and closes the first operating position of inlet 17, close the 3rd operating position of described liquid outlet 19 from the second operating position that the liquid of inlet 17 inflow can flow out from liquid outlet 19 and the second valve face 35.The shape of this first valve face 33 is hemispherical, but the shape of this first valve face 33 is not limited thereto, and also can be other shape, such as coniform etc.The shape of the second valve face 35 is also hemispherical, but the shape of this second valve face 35 is also not limited thereto, and also can be other shape, such as coniform etc.When this first valve face 33 is pressed on inlet 17, this first valve face 33 closes this inlet 17, and this spool 21 is in the first operating position; When this spool 24 deviate from this inlet 17 move to liquid outlet 19 direction time, this first valve face 33 leaves inlet 17 and the second valve face 35 does not also contact with liquid outlet 19, and this spool 21 is in the second operating position; When this second valve face 35 is pressed on liquid outlet 19, this second valve face 35 closes this liquid outlet 19, and this spool 21 is in the 3rd operating position.
In this inner chamber 15, be provided with elastic component 23, this elastic component 23 applies to spool 21 elastic force maintaining the first operating position.This elastic component 23 has first end 25 and the second end 27, this first end 25 is connected with spool 21, this second end 27 is connected with described liquid outlet 19, and spool 21 is pressed on inlet 17 and makes spool 21 close inlet 17 by this elastic component 23, and now spool 21 is in the first operating position.After ground flow connects, squeeze into fluid to the outside in pipeline, when fluid pressure reaches the opening pressure of spool 21, spool 21 and inlet 17 are separated, and fluid enters in pit shaft through liquid outlet 19, and now spool 21 is in the second operating position.When flow velocity exceedes maximum speed limit, the elastic force that spool 21 overcomes elastic component 23 under fluid pressure action moves to liquid outlet 19 direction thus closes liquid outlet 19, and fluid can not flow in pit shaft, and now spool 21 is in the 3rd operating position.When stopping squeezing into fluid from ground, leave liquid outlet 19 at the effect bottom spool 21 of elastic component 23 to move to inlet 17 direction, at this moment can continue again to inject fluid, thus achieve the speed restriction object within the specific limits that fluid can be entered oil well by this one way valve, when in pit shaft, pressure increases suddenly, under the effect of fluid and elastic component 23, spool 21 moves to inlet 17 side and closes this inlet 17, thus prevent fluid excessive, prevent the generation of gas blowout accident.This elastic component 23 can be spring, but is also not limited thereto, and can also have other equivalent way, such as shell fragment.
As shown in Figure 2; in the present embodiment; between inlet 17 and liquid outlet 17, track 33 is provided with in inner chamber 15; this track 33 is for controlling the motion track of spool 21; make spool 21 in the first operating position, move between the second operating position and the 3rd operating position, thus realize the restriction of the flow velocity of convection cell, can ensure that the fluid injecting pit shaft injects pit shaft in the flow rates of design; oil reservoir is played a protective role, avoids the generation occurring bursting the existing picture of oil reservoir.On the sidewall of spool 21, outstanding first valve face 33 and the second valve face 35 are formed with tractive unit 41, and this tractive unit 41 stretches into track 33 and can move along described track 33, thus band movable valve plug 21 moves between inlet 17 and liquid outlet 17.
As shown in Figure 2, in the present embodiment, track 33 comprises the change rail portion 47 near inlet 17, with the track groove 45 extended to liquid outlet 19 direction from this change rail portion 47, described track groove 45 comprise length not wait the first track groove and the first track groove, become rail portion 47 tractive unit 41 can be made to switch between this first track groove and first track groove.
As shown in Figure 2, in the present embodiment, the length of this first track groove is greater than the length of the first track groove, and when tractive unit 41 moves along this first track groove, tractive unit 41 can move by guide spool 21 between the second operating position and the 3rd operating position; When tractive unit 41 moves along the first track groove, tractive unit 41 can be in the second operating position by guide spool 21.
The length of this first track groove is the distance between inlet 17 to liquid outlet 19, when tractive unit 41 moves along this first track groove, this tractive unit 41 can move by guide spool 21 between the second operating position and the 3rd operating position, so this first track groove is the track groove for limiting the speed of the fluid in Injection Well, the quantity of this track groove is not limit, in the present embodiment, this first track groove is two, is the first medicament track groove 49 and the second medicament track groove 51 respectively.The length of this second track groove is less than the distance between inlet 17 to liquid outlet 19, when tractive unit 41 moves along this first track groove, this tractive unit 41 can be in the second operating position by guide spool 21, due to tractive unit 41 move along this first track groove time, spool 21 can not close liquid outlet 19 all the time, so this second track groove is not to the track groove that the speed of the fluid in Injection Well limits, the quantity of this track groove is not limit, in the present embodiment, this first track groove is 1, is the 3rd medicament track groove 53.
As shown in Figure 2, in the present embodiment, when this first medicament track 49 and the second medicament track 51 are respectively and squeeze into the first medicament and the second medicament in pit shafts, the moving track of tractive unit 41; When 3rd medicament track 53 for squeezing into the third medicament in pit shaft, the moving track of tractive unit 41.The first medicament track 49 that this length is identical is adjacent with the second medicament track 51 is arranged side by side formation one group can carry out limited flow rate the first track groove to the fluid injected into well, and the object designing these two the first track groove is conveniently to squeeze into two kinds of medicaments.
As shown in Figure 2, in the present embodiment, become the first inclined-plane 55 that rail portion 47 comprises close inlet 17, and the second inclined-plane 57 to connect with the first track groove Xiang Ling, when tractive unit 41 moves along the centerline direction of the first track groove to described inlet 19, this first inclined-plane 55 makes tractive unit 41 depart from the centerline direction of the first track groove and arrive the first operating position along described first inclined-plane 55; When spool 21 deviate under fluid matasomatism the first operating position move to the second operating position time, this second inclined-plane 57 guides this tractive unit 41 to enter the first track groove along the second inclined-plane 57.
As shown in Figure 2, in the present embodiment, the course of work of the present utility model is as follows: when spool 21 is in the first operating position, tractive unit 41 is positioned at 46.The first medicament is squeezed in this one way valve, when fluid pressure reaches the opening pressure of spool 21, spool 21 deviates from the first operating position and moves to the second operating position, spool 21 leaves inlet 17, fluid pressure overcomes the elastic force of elastic component 23, promote tractive unit 41 and move to position 48 along the first medicament track 49 from position 46, now tractive unit 41 is subject to the stop on the second inclined-plane 57, can not continue to move forward along original track, tractive unit 41 can only move along the second inclined-plane 57 thus enter the injection path portion 45 of the first medicament track 49 under the effect of fluid pressure, thus move to position 50 from position 48, when fluid velocity increases suddenly, fluid forces spool 21 moves to 52 positions, if now speed is excessive, spool 21 will close liquid outlet 19, medicament cannot be flowed out from liquid outlet 19.So normal flow velocity makes spool 21 between position 50 and position 52 when spraying the first medicament, when stopping spraying the first medicament, under elastic component 23 and internal pressure effect thereof, spool 21 moves to position 54 through position 50, now tractive unit 41 is subject to the stop on the first inclined-plane 55, can not continue to move forward along original track, tractive unit 41 can only move last to position 56 under the elastic force effect of elastic component 23 along the first inclined-plane 55, realizes becoming rail.The second medicament is squeezed in this one way valve, spool 21 first leaves position 56, the second medicament track 51 is entered along the second inclined-plane 57 to position 60 through position 58, when fluid velocity is excessive, spool 21 is positioned at position 62, if now speed is excessive, spool 21 will close liquid outlet 19, and medicament cannot be flowed out from liquid outlet 19.When fluid velocity recovers normal, spool 21 returns to again the position between position 62 and position 60, after the second medicament has been beaten, under the elastic force and internal pressure effect thereof of elastic component 23, spool 21 realizes becoming rail along the first inclined-plane 55 to position 66 through position 64, when beating displacement fluid spool 21 through position 68 to position 70, enter the 3rd medicament track 53, last spool 21 moves to position 72, because position 72 and liquid outlet 19 also have a segment distance, therefore spool 21 can not close liquid outlet 19 herein, injection rate is unrestricted herein thus, when in pit shaft, pressure increases suddenly, under the effect of upwards migrate fluid and elastic component 23, spool 21 is contacted with inlet 19, thus prevent fluid excessive, prevent the generation of gas blowout accident.
As shown in Figure 1, in the present embodiment, body 10 is provided with relief hole 37, this relief hole 37 is connected with inner chamber 15, and this relief hole 37 is provided with pressure release valve 39.After having noted medicament, when tearing pipeline open, first open the release that pressure release valve 39 carries out pressure, after equal pressure has discharged, then dismantle pipeline, the safety of site operation personnel can be ensured like this.
The foregoing is only several embodiment of the present utility model, those skilled in the art can carry out various change or modification to the utility model embodiment according to content disclosed in application documents and not depart from spirit and scope of the present utility model.
Claims (7)
1. an one way valve, is characterized in that, it comprises:
Have the body of first end and the second end, described first end and described second end are for being connected external pipe;
To be arranged in described body and inner chamber between described first end and described second end, described inner chamber has the inlet be connected with described first end and the liquid outlet be connected with described second end;
Be arranged at the spool in described inner chamber, described spool have back to the first valve face and the second valve face, the second operating position that described spool has the first operating position that described first valve face closes described inlet, the liquid that flows into from described inlet can flow out from described liquid outlet and described second valve face close the 3rd operating position of described liquid outlet;
Be arranged at the elastic component in described inner chamber, described elastic component applies to described spool the elastic force maintaining described first operating position.
2. one way valve according to claim 1, is characterized in that, it comprises: to be arranged in described inner chamber and track between described inlet and described liquid outlet; On the sidewall of described spool, outstanding described first valve face and described second valve face are formed with tractive unit, and described tractive unit stretches into described track and can along described rail moving; Described track guides described spool in described first operating position by described tractive unit, moves between described second operating position and described 3rd operating position.
3. one way valve according to claim 2, it is characterized in that: described track comprises the change rail portion near described inlet, with the track groove extended to described liquid outlet direction from described change rail portion, described track groove comprise length not wait the first track groove and the second track groove, described change rail portion can make described tractive unit switch between described first track groove and described second track groove.
4. one way valve according to claim 3, it is characterized in that: the length of described first track groove is greater than the length of described second track groove, when described tractive unit moves along described first track groove, described tractive unit can guide described spool to move between described second operating position and described 3rd operating position; When described tractive unit moves along described second track groove, described tractive unit can guide described spool to be in described second operating position.
5. one way valve according to claim 3, it is characterized in that: described change rail portion comprises the first inclined-plane near described inlet, and the second inclined-plane to connect with described second track groove Xiang Ling, when described tractive unit moves along the centerline direction of described first track groove to described inlet, described first inclined-plane makes described tractive unit depart from the centerline direction of described first track groove and arrive described first operating position along described first inclined-plane; When described spool deviate under fluid matasomatism described first operating position move to described second operating position time, described second inclined-plane guides described tractive unit to enter described second track groove along described second inclined-plane.
6. one way valve according to claim 1, is characterized in that, it comprises: be arranged at the relief hole on described body, and described relief hole and described intracavity inter-connection, described relief hole is provided with pressure release valve.
7. one way valve according to claim 1, is characterized in that: described liquid outlet have near described inner chamber arrival end and back to the port of export, the internal diameter of described liquid outlet reduces from described arrival end to the described port of export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420678371.0U CN204283327U (en) | 2014-11-07 | 2014-11-07 | One-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420678371.0U CN204283327U (en) | 2014-11-07 | 2014-11-07 | One-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283327U true CN204283327U (en) | 2015-04-22 |
Family
ID=52866502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420678371.0U Expired - Fee Related CN204283327U (en) | 2014-11-07 | 2014-11-07 | One-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018166041A1 (en) * | 2017-03-13 | 2018-09-20 | 广州旭特铝业科技有限公司 | Pressure relief type one-way valve device |
| CN110836180A (en) * | 2018-08-15 | 2020-02-25 | 中国石油天然气股份有限公司 | Valve and pump assembly with same |
-
2014
- 2014-11-07 CN CN201420678371.0U patent/CN204283327U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018166041A1 (en) * | 2017-03-13 | 2018-09-20 | 广州旭特铝业科技有限公司 | Pressure relief type one-way valve device |
| CN110836180A (en) * | 2018-08-15 | 2020-02-25 | 中国石油天然气股份有限公司 | Valve and pump assembly with same |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 |
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| CF01 | Termination of patent right due to non-payment of annual fee |