CN204284543U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN204284543U CN204284543U CN201420732068.4U CN201420732068U CN204284543U CN 204284543 U CN204284543 U CN 204284543U CN 201420732068 U CN201420732068 U CN 201420732068U CN 204284543 U CN204284543 U CN 204284543U
- Authority
- CN
- China
- Prior art keywords
- flap
- valve
- described valve
- valve chamber
- working position
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 230000037361 pathway Effects 0.000 claims description 39
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000000670 limiting effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 5
- 230000002441 reversible effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model provides a pair of check valve, it includes: the liquid inlet valve comprises a body provided with a liquid inlet channel, a valve chamber and a liquid outlet channel, wherein the liquid inlet channel and the liquid outlet channel are communicated through the valve chamber; the valve core assembly is arranged in the valve chamber and comprises an elastic part and a valve clack, one end of the elastic part is connected with the inner wall of the valve chamber, the other end of the elastic part is a free end, and the free end is abutted to the valve clack or connected with the valve clack; the valve clack has the first working position capable of sealing the liquid inlet channel and the second working position capable of opening the liquid inlet channel, and the elastic part applies the elastic force to the valve clack to maintain the first working position. The utility model aims at providing a check valve that can install with arbitrary angle.
Description
Technical field
The present invention relates to oil and gas exploitation field, particularly relate to a kind of safety check.
Background technique
At present, in electric pump liquid-supplying system, highly pressurised liquid is exported by electric pump.When the system is operated, such as, due to some unpredictable event, power-off, cause electric pump to shut down suddenly, export the distress resolves of highly pressurised liquid in electric pump, exporting with electric pump the highly pressurised liquid be connected will reverse flow telegram in reply pump.Impeller of electrical pump produces reversing under the impact of highly pressurised liquid, and impeller, because bearing the impulsive load of highly pressurised liquid, can make impeller or other component occur to loosen or damage time serious.Impeller may be caused when pump operates again to fly out, cause very large threat to safety in production.In order to address this problem, prevent highly pressurised liquid from refluxing, generally connect safety check at electric delivery side of pump, stoped the highly pressurised liquid reverse flow telegram in reply pump exported by safety check.
Existing safety check has the liquid outlet allowing the liquid entering hole of fluid inflow safety check inside and allow fluid to flow out from safety check inside, when the hydrodynamic pressure of the liquid entering hole of safety check is greater than the hydrodynamic pressure of liquid outlet, the flap of safety check is opened under fluid matasomatism, and fluid flows to liquid outlet from liquid entering hole; When the pressure of the liquid entering hole of safety check is lower than liquid outlet, flap is automatically closed in case fluid flows backwards under the effect of the factor of fluid pressure difference and self gravitation.
This dependence flap deadweight is carried out closing thus stops the safety check of reverse flow of fluids to have certain narrow limitation in actual applications: this safety check can not be installed with arbitrarily angled.Safety check of the prior art is when flap is in vertically arranged position, flap can be seated at valve seat fast thus close safety check, when flap is not in vertically arranged position, due to the gravitational direction of flap and the direction of whereabouts inconsistent, thus the power making flap fall is reduced to the component of gravity on flap falling direction of flap, thus flap is caused can not to hurtle down safety check quick closedown on valve seat, even in some cases, flap can not be landed on valve seat, cause closing safety check, thus cannot liquid backflow be stoped.
Model utility content
The purpose of this utility model be to provide a kind of can with the arbitrarily angled safety check carrying out installing.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize: a kind of safety check, and it comprises: the body with feed pathway, valve chamber and liquid outlet channel, and described feed pathway, described liquid outlet channel are connected by described valve chamber; Be arranged on the mangetic core assembly in described valve chamber, described mangetic core assembly comprises elastic component and flap, one end of described elastic component is connected with the inwall of described valve chamber, and the other end is free end, and described free end abuts against with described flap or described free end is connected with described flap; Described flap has the first working position closing described feed pathway and the second working position opening described feed pathway, and described elastic component applies to described flap the elastic force maintaining described first working position.
Preferably, the sidewall of described valve chamber is provided with valve opening; Be arranged in described valve opening movably, and the valve rod stretched in described valve chamber, described valve rod stretches into the end of described valve chamber and described flap fixes, described elastic component is sheathed on described valve rod, when described flap moves between described first working position and described second working position, described valve rod moves along described valve opening.
Preferably, position-limited lever is provided with movably in described valve opening, described position-limited lever and described valve rod are arranged in series and deviate from described valve rod and stretch out described valve opening, and when described valve rod moves along described valve opening, described position-limited lever is for limiting the maximum displacement of described valve rod movement.
Preferably, the outer side surface of described position-limited lever is provided with scale.
Preferably, described feed pathway is formed with the valve seat near described valve chamber, and described valve seat has conical anchor ring, and described flap has the arcuate surface towards valve seat, when described flap is in described first working position, described flap to be seated on described valve seat and the sealing in wire.
The beneficial effect of a kind of safety check that the utility model provides is: the mangetic core assembly of a kind of safety check that the utility model provides by arranging in valve chamber, this mangetic core assembly comprises elastic component and flap, one end of described elastic component is connected with the inwall of described valve chamber, the other end is free end, and described free end abuts against with described flap or described free end is connected with described flap; Described flap has the first working position closing described feed pathway and the second working position opening described feed pathway, and described elastic component applies to described flap the elastic force maintaining described first working position.Achieve when the hydrodynamic pressure of liquid outlet channel side is greater than the hydrodynamic pressure of feed pathway side, described flap closes described feed pathway under the effect of the elastic force of described elastic component, thus a kind of safety check provided when the utility model to close when reality uses be rely on the elastic force of elastic component to carry out closing, and the impact of setting angle can not be subject to and cause flap cannot be seated on valve seat, so a kind of safety check that the utility model provides can be installed with arbitrarily angled; On position-limited lever, arranging scale on the other hand achieves when the hydrodynamic pressure of feed pathway side is greater than the hydrodynamic pressure of liquid outlet channel side, flap is elected under the effect of pressure difference, rotate handwheel make the scale that scale arrives position-limited lever corresponding to flap closed position thus the displacement of valve rod can be controlled exactly and then control the Lift of flap simultaneously, thus reach the object of accurate flow control.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological 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.
The structural drawing of a kind of safety check that Fig. 1 the utility model provides;
The structural drawing of a kind of safety check that Fig. 2 the utility model provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological 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, a kind of safety check 10 that the utility model provides, it comprises: the body 11 with feed pathway 14, valve chamber 18 and liquid outlet channel 16, and described feed pathway 14, described liquid outlet channel 16 are connected by described valve chamber 18; Be arranged on the mangetic core assembly 20 in described valve chamber 18, described mangetic core assembly 20 comprises elastic component 21 and flap 27, one end 23 of described elastic component 21 is connected with the inwall of described valve chamber 18, the other end 25 is free end, and described free end abuts against with described flap 27 or described free end is connected with described flap 27; Described flap 27 has the first working position closing described feed pathway 14 and the second working position opening described feed pathway 14, and described elastic component 21 applies to described flap 27 elastic force maintaining described first working position.
A kind of safety check 10 that the utility model provides by arranging elastic component 21 in valve chamber 18, one end 23 of this elastic component 21 is fixed on the inwall of described valve chamber 15, the other end 25 is connected with flap 27, described flap 27 can seal described feed pathway 14, achieve when the hydrodynamic pressure of liquid outlet channel 16 side is greater than the hydrodynamic pressure of feed pathway 14 side, described flap 27 closes described feed pathway 14 under the effect of the elastic force of described elastic component, thus a kind of safety check 10 provided when the utility model to close when reality uses be rely on the elastic force of elastic component 21 to carry out closing, and the impact of setting angle can not be subject to and cause flap 27 cannot be seated on valve seat 19, so a kind of safety check 10 that the utility model provides can be installed with arbitrarily angled.
A kind of safety check 10 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 11 has feed pathway 14, valve chamber 18 and liquid outlet channel 16, and this feed pathway 14, liquid outlet channel 16 are connected by valve chamber 18.This feed pathway 14, liquid outlet channel 16 are all communicated with the pipeline of outside, thus are connected to by this safety check 10 in outside pipeline, control, prevent ducted reverse flow of fluids to the fluid flowed in external pipe.This feed pathway 14 flows into the passage of body 11 for fluid, and liquid outlet channel 16 flows out the passage of body 11 for fluid.
Mangetic core assembly 20 is provided with in valve chamber 18, this mangetic core assembly 20 comprises elastic component 21 and flap 27, one end 23 of this elastic component 21 is connected with the inwall of valve chamber 18, and the other end 25 is free end, and this free end abuts against with flap 27 or this free end is connected with flap 27.In the present embodiment, elastic component 21 is spring, but elastic component 21 is not limited to this, can also be other the original paper with elastic telescopic function, such as shell fragment.
As shown in Figure 1, in the present embodiment, the sidewall of this valve chamber 18 is provided with valve opening 31; This valve opening 31 have towards the opening end 26 of valve chamber 18 inside and with the closed end 28 deviating from opening end 26.Valve rod 33 is arranged in valve opening 31 movably, and stretches in valve chamber 18 by opening end 26, when valve rod 33 along valve opening 31 deviate from opening end 26 move to closed end 28 time, be subject to closed end 28 stop and can not infinitely on move.The end that valve rod 33 stretches into valve chamber 28 is connected with flap 27; This flap 27 has the first working position closing feed pathway 14 and the second working position opening feed pathway 14, and elastic component 21 applies to flap 27 elastic force maintaining the first working position.Elastic component 21 is sheathed on valve rod 33, and a free end and the flap 27 of this elastic component 21 abut against, and makes elastic component 21 can apply elastic force to flap 27, thus flap 27 is maintained on the first working position.When fluid flows to liquid outlet channel 16 from feed pathway 14, the pressure of feed pathway 14 side is greater than the pressure of liquid outlet channel 16 side, fluid flows to valve chamber 18 from feed pathway 14, overcome the elastic force of elastic component 21 thus elastic component 21 is compressed, flap 27 just can leave the first working position, thus just can open feed pathway 14 and make direction of flow liquid outlet channel 16.When the hydrodynamic pressure of liquid outlet channel 16 side is greater than the hydrodynamic pressure of feed pathway 14 side, because elastic component 21 will restore to the original state, the first working position is pushed into fast thus sealing feed pathway 14 at the effect lower Disc 27 of the elastic force of elastic component 21, therefore it is rely on the elastic force of elastic component 21 to carry out closing that a kind of safety check 10 that the utility model provides cuts out when reality uses, and can not be subject to being arranged on the impact in the technique with inclination angle at any angle, so a kind of safety check 10 that the utility model provides can be applied in the technique having inclination angle at any angle.
As shown in Figure 2, in the present embodiment, the closed end 28 of valve opening 31 is provided with through hole 40.In valve opening 31, be provided with position-limited lever 34 movably, this position-limited lever 34 and valve rod 33 to be arranged in series in valve opening 31 and to deviate from valve rod 33 and stretch out valve opening 31 from through hole 40.This position-limited lever 34 has bottom 36 and top 38, bottom 36 is radially extruded with the protuberance 42 suitable with closed end 28, when this position-limited lever 34 is moved along valve opening 31 to closed end 28, when this protuberance 42 moves to closed end 28, be subject to the stop of closed end 28 and move on can not continuing, thus limiting the movement of position-limited lever 34.When position-limited lever 34 is limited and when can not move, valve rod 33 just can be defined along valve opening 31 to the distance of closed end 28 movement thereupon, therefore can control the maximum displacement of valve rod 33 along valve opening 31 movement by arranging the position of position-limited lever 34 in valve opening 31, thus fluid flows to liquid outlet channel 16 flow from feed pathway 14 can be controlled.
As shown in Figure 2, in the present embodiment, the top 38 of position-limited lever 34 is provided with handwheel 35, when the pressure of feed pathway 14 side is greater than the pressure of liquid outlet channel 16 side, fluid flows to valve chamber 18 from feed pathway 14, the elastic force overcoming elastic component 21 makes flap 27 be elected, thus valve rod 33 is moved along valve opening 31 to closed end 28, now rotate handwheel 35 makes position-limited lever 34 also move to closed end 28 simultaneously, when handwheel 35 stops operating, the mobile of position-limited lever 34 stops, thus can control the maximum height also i.e. maximum displacement that valve rod 33 can arrive along valve opening 31.The outer side surface of position-limited lever 34 is provided with scale 37, and this scale 37 accurately can obtain the length of position-limited lever 34 movement, thus can be reached the object accurately controlling the flow flowing to liquid outlet channel 16 from feed pathway 14 by scale 37.
As shown in Figure 1, in the present embodiment, feed pathway 14 is formed with the valve seat 19 near valve chamber 18, this valve seat 19 has conical anchor ring 29, this flap 27 has the arcuate surface 41 towards valve seat 19, when flap 27 is in the first working position, flap 27 to be seated on valve seat 19 and the sealing in wire.
As shown in Figure 1, in the present embodiment, body 11 is provided with eyelet 45, copper sheathing 43 is contained in eyelet 45, and is fixed with rotation inhibiting screw 47.When rotation inhibiting screw 47 drives position-limited lever 34 to rotate for rotating when handwheel 35, prevent copper sheathing 43 from also rotating thereupon.Stuffing box packing 51 compresses by sealing gland 49, prevents the high-pressure liquid in valve chamber 18 from overflowing from the through hole 40 of the closed end 28 of valve opening 31.Sealing gland 49 is fixed by screw and body 11.
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 (5)
1. a safety check, is characterized in that, it comprises:
Have the body of feed pathway, valve chamber and liquid outlet channel, described feed pathway, described liquid outlet channel are connected by described valve chamber;
Be arranged on the mangetic core assembly in described valve chamber, described mangetic core assembly comprises elastic component and flap, one end of described elastic component is connected with the inwall of described valve chamber, and the other end is free end, and described free end abuts against with described flap or described free end is connected with described flap; Described flap has the first working position closing described feed pathway and the second working position opening described feed pathway, and described elastic component applies to described flap the elastic force maintaining described first working position.
2. safety check according to claim 1, is characterized in that: the sidewall of described valve chamber is provided with valve opening; Be arranged in described valve opening movably, and the valve rod stretched in described valve chamber, described valve rod stretches into the end of described valve chamber and described flap fixes, described elastic component is sheathed on described valve rod, when described flap moves between described first working position and described second working position, described valve rod moves along described valve opening.
3. safety check according to claim 2, it is characterized in that: in described valve opening, be provided with position-limited lever movably, described position-limited lever and described valve rod are arranged in series and deviate from described valve rod and stretch out described valve opening, when described valve rod moves along described valve opening, described position-limited lever is for limiting the maximum displacement of described valve rod movement.
4. safety check according to claim 3, is characterized in that: the outer side surface of described position-limited lever is provided with scale.
5. safety check according to claim 1, it is characterized in that: described feed pathway is formed with the valve seat near described valve chamber, described valve seat has conical anchor ring, described flap has the arcuate surface towards valve seat, when described flap is in described first working position, described flap to be seated on described valve seat and the sealing in wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420732068.4U CN204284543U (en) | 2014-11-27 | 2014-11-27 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420732068.4U CN204284543U (en) | 2014-11-27 | 2014-11-27 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284543U true CN204284543U (en) | 2015-04-22 |
Family
ID=52867704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420732068.4U Expired - Fee Related CN204284543U (en) | 2014-11-27 | 2014-11-27 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204284543U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662255A (en) * | 2018-07-16 | 2018-10-16 | 浙江中孚流体机械有限公司 | A kind of guide electromagnetic valve that spool aperture is controllable |
| CN112128437A (en) * | 2020-09-15 | 2020-12-25 | 湖南常德牌水表制造有限公司 | External backflow prevention mechanism for high-fall installation environment water meter |
-
2014
- 2014-11-27 CN CN201420732068.4U patent/CN204284543U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662255A (en) * | 2018-07-16 | 2018-10-16 | 浙江中孚流体机械有限公司 | A kind of guide electromagnetic valve that spool aperture is controllable |
| CN112128437A (en) * | 2020-09-15 | 2020-12-25 | 湖南常德牌水表制造有限公司 | External backflow prevention mechanism for high-fall installation environment water meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8955601B2 (en) | Flow management system and method | |
| US20160108699A1 (en) | System for controlling fluid flow | |
| CN204805711U (en) | A keep ware, control member subassembly and control valve for control member of control valve | |
| CN204284543U (en) | Check valve | |
| CN203286066U (en) | Constant-pressure air vent valve | |
| US3094170A (en) | Subsurface well tubing safety valve | |
| CA2968380C (en) | Gas lift valve assemblies and methods of assembling same | |
| CN105276208A (en) | Multifunctional butterfly valve | |
| CN202418601U (en) | Large-diameter shutoff valve | |
| EP2990592A1 (en) | Dual stem injection valve | |
| CN203131130U (en) | Check valve | |
| CN104265188A (en) | Intelligent crossover coupling | |
| CN203703264U (en) | Novel vertical type spherical check valve | |
| CN204533583U (en) | Blade guidance type high pressure string data valve core structure | |
| CN210088084U (en) | Anti-scouring composite valve set | |
| CN203836304U (en) | High-pressure safety pilot valve | |
| CN103672048A (en) | Vertical check valve | |
| CN201129541Y (en) | Non-return and cut-off integrated valve | |
| CN204852439U (en) | Ball valve is fixed to forged steel formula | |
| CN204139988U (en) | A kind of intelligent conversion joint | |
| CN205896189U (en) | Stop valve | |
| CN104390019A (en) | Stop valve | |
| CN104727778A (en) | Remote high-pressure well opening emergency cut-off device | |
| CN204153291U (en) | A kind of valve of fast shut-off | |
| CN204284477U (en) | A kind of stop valve spool pressure relief means thereon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 |