CN105696971A - Blowout prevention four-way valve - Google Patents
Blowout prevention four-way valve Download PDFInfo
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- CN105696971A CN105696971A CN201410693533.2A CN201410693533A CN105696971A CN 105696971 A CN105696971 A CN 105696971A CN 201410693533 A CN201410693533 A CN 201410693533A CN 105696971 A CN105696971 A CN 105696971A
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- valve core
- seal
- blowout prevention
- lateral
- arcwall
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Abstract
The invention provides a blowout prevention four-way valve. The blowout prevention four-way valve according to the invention comprises a main body, a valve core body and a regulating screw rod, wherein the main body is provided with a vertical flow passage; two lateral through holes which are horizontally opposite are formed in the two sides of the main body; the two lateral through holes are communicated with the vertical flow passage; a sealing box is connected onto the lateral through holes in a sealed way; the valve core body is glidingly arranged in the lateral through holes; a valve core body passage for clamping and installing a rod body is formed in the valve core body; a sealing element is arranged in the valve core body passage; one end, opposite to the vertical flow passage, of the sealing element is provided with a plurality of sealing bulges arranged at intervals; the regulating screw rod is arranged and connected in the sealing box in a penetrating way in a manner capable of horizontally moving; and the regulating screw rod drives and connects the valve core body. A plurality of separated sealing bulges are arranged on the sealing element; after each sealing bulge is compressed, the adaptive change can be realized in each interval belt according to the compression force condition; the radial deformation range is large; and the blowout prevention four-way valve can adapt to the sealing clamping on rod posts with different diameters.
Description
Technical field
The present invention relates to petroleum and natural gas screw pump oil production technical field, especially, relate to a kind of blowout prevention four-way。
Background technology
At present, owing to screw pump oil production system has the features such as disposable input is low, easy to maintenance, floor space is little, adaptation exploitation media range is wide, artificial lift screw pump system is increasingly widely applied in oil recovery field, consequently also derive a series of corollary equipment and instrument, and technical merit is more and more higher。
Blowout prevention four-way is to ensure that the safety and supporting a kind of ground installation that well site operates, and closes the sealed valve core of its both sides when down-hole pressure exception or driving device are safeguarded, to realize the sealing to polished rod or sucker rod。The blowout prevention four-way of application in current well site, is primarily present problems with:
1, sealed valve core is relatively elaborate when installing, and the thrust of the sealing member being connected on sealed valve core needs to regulate manually；
2, needing to change different sealed valve cores with sucker rod for the polished rod of different-diameter, in same set of roofbolt, polished rod and sucker rod diameter not concurrently there are certain potential safety hazard；
3, there is no guide frame between sealed valve core and blowout prevention four-way, when sealed valve core moves horizontally in blowout prevention four-way, it is easy to cause the rotation of sealed valve core, cause seal failure。
Therefore, it is necessary to provide a kind of new blowout prevention four-way, overcome drawbacks described above。
Summary of the invention
Present invention aim at providing a kind of blowout prevention four-way, the polished rod of different-diameter and the technical problem of sucker rod can not be sealed solving same spool。
The above-mentioned purpose of the present invention can adopt following technical proposal to realize:
The present invention provides a kind of blowout prevention four-way, comprising: main body, it has vertical runner, and the both sides of main body offer two lateral through holes of level of relative, and two lateral through holes are connected with vertical runner respectively, and lateral through hole is sealedly connected with seal box；Valve core, it is slidably disposed in lateral through hole, and valve core offers the valve core passage of the sandwiched body of rod, is provided with sealing member in valve core passage, and one end that sealing member is relative with vertical runner is provided with a plurality of spaced seal convexity；Adjusting screw rod, it can wear and be connected in seal box with moving horizontally, and adjusting screw rod drives with valve core and is connected。
Further, valve core being connected to spool key, the inwall of lateral through hole is provided with guide key groove, spool key matches with guide key groove。
Further, sealing member includes two sidewalls being parallel to each other, one end of two sidewalls connects the first arcwall of depression between oriented two sidewalls, and the other end of two sidewalls is connected to the second arcwall, and the arc projection direction of the second arcwall is perpendicular with two sidewalls；Valve core offers horizontal seal groove on side diametrically respectively, the axial seal groove that the one end with two horizontal seal grooves is connected is offered in valve core passage, valve core offers radial seal groove, radial seal groove is connected with the other end of two horizontal seal grooves, first arcwall is arranged in axial seal groove, sidewall is arranged in horizontal seal groove, and the second arcwall is arranged in radial seal groove。
Further, multiple seal convexities being parallel to each other are disposed on the first arcwall。
Further, valve core passage is semicircle, and the diameter of valve core passage is more than the diameter of the body of rod。
Further, the outer end of seal box is connected to seal pressure cap。
Further, the operating side of adjusting screw rod is connected to spacing handwheel。
Further, back-up ring it is provided with between seal pressure cap and seal box。
Feature and the advantage of the present invention be:
The sealing member of the present invention is made up of elastomeric material, horizontally disposed on its one end relative with vertical runner have multiple seal convexity separately, each seal convexity is squeezed into after being compressed in each intervallum, the radial deformation scope of this seal convexity is relatively big, thus the polished rod of salable firmly different-diameter and sucker rod。
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。
Fig. 1 is the schematic diagram of the blowout prevention four-way of the present invention；
Fig. 2 is the schematic diagram of the valve core of the blowout prevention four-way of the present invention and spool key；
Fig. 3 is the schematic diagram of the valve core of the blowout prevention four-way of the present invention；
Fig. 4 is the schematic diagram of the sealing member of the blowout prevention four-way of the present invention；And
Fig. 5 is the schematic diagram of the seal box of the blowout prevention four-way of the present invention。
Accompanying drawing labelling in accompanying drawing is as follows: 10, main body；11, vertical runner；12, lateral through hole；21, valve core；211, valve core passage；212, horizontal seal groove；213, axial seal groove；214, radial seal groove；215, secondary seal groove；22, spool key；23, sealing member；231, sidewall；232, the first arcwall；2321, seal convexity；233, the second arcwall；24, adjusting screw rod；25, seal box；251, round platform is installed；26, pad；27, sealing gasket；28, back-up ring；29, seal pressure cap；30, spacing handwheel。
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments。Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention。
As shown in Figures 1 to 5, the present invention provides a kind of blowout prevention four-way, comprising: main body 10, main body 10 mainly provides and externally connects interface and runner, main body 10 has vertical runner 11, the both sides of main body 10 offer two lateral through holes 12 of level of relative, and two lateral through holes 12 are connected with vertical runner 11 respectively, and lateral through hole 12 is sealedly connected with seal box 25；Valve core 21, it can slide in lateral through hole 12, one end that valve core 21 is relative with vertical runner 11 offers the valve core passage 211 by the body of rod, being provided with sealing member 23 in valve core passage 211, there is a plurality of spaced seal convexity 2321 one end that sealing member 23 is relative with vertical runner 11；Adjusting screw rod 24, it is arranged in seal box 25, it is achieved the horizontal drive to valve core 21。The sealing member 23 of the present invention is made up of elastomeric material, elastomeric material can be rubber, nylon etc., its one end relative with vertical runner 11 there is a plurality of spaced seal convexity 2321, when the valve core 21 of vertical runner 11 both sides is to when being clipped on polished rod or sucker rod, the valve core passage 211 of two valve cores 21 encloses the periphery being located at polished rod or sucker rod, it is arranged on seal convexity 2321 sealed holding on the sealing member 23 in valve core passage 211 on polished rod or sucker rod, owing to there is certain spacing between each seal convexity 2321, seal convexity 2321 can do adaptive change according to compression stress situation in each intervallum, so this seal convexity 2321 radial deformation scope is bigger, when the polished rod of valve core 21 and different-diameter or sucker rod contact, this sealing member 23 suitably can regulate according to the roofbolt size of the polished rod of different-diameter or sucker rod, it is thus possible to meet the polished rod to different bar footpaths and the sealing of sucker rod, there is the effect of reducing。
Referring to Fig. 2 and Fig. 3, valve core 21 being connected to spool key 22, spool key 22 is for the guiding of valve core 21, and valve core does not overturn in traveling process to coordinate the guide key groove in main body 10 to ensure；Spool key 22 is provided with a T-shaped hole, spool key 22 is by fixing through the screw of T-shaped hole with valve core 21, prevent spool key 22 from coming off in valve core 21 reciprocatingly slides, the sidewall of lateral through hole 12 is provided with the guide key groove of anti-canting, spool key 22 matches with guide key groove, spool key 22 is as guide frame, ensure that valve core 21 does not overturn in traveling process, simultaneously, as shown in Figures 2 and 3, valve core 21 is additionally provided with along the circumferentially disposed sliding ring 215 of its outer surface, uses as the valve core 21 secondary seal in lateral through hole 12。
Referring to Fig. 1 to Fig. 4, sealing member 23 includes two sidewalls being parallel to each other 231, one end of two sidewalls 231 connects the first arcwall 232 of depression between oriented two sidewalls 231, the other end is connected to the second arcwall 233, and the plane at the arc circle place of the second arcwall 233 is perpendicular with the plane at two sidewall 231 places；Valve core 21 offers horizontal seal groove 212 on side diametrically respectively, the axial seal groove 213 that the one end with two horizontal seal grooves 212 is connected is offered in valve core passage 211, valve core 21 offers radial seal groove 214, the two ends of radial seal groove 214 are connected with the other end of two horizontal seal grooves 212, first arcwall 232 is arranged in axial seal groove 213, sidewall 231 is arranged in horizontal seal groove 212, and the second arcwall 233 is arranged in radial seal groove 214。
In the present invention, referring to Fig. 2 and Fig. 3, valve core passage 211 is semicircle, its diameter L is more than the diameter of the body of rod, this body of rod can be polished rod or sucker rod, when two valve cores 21 are to when being clipped on polished rod or sucker rod, the first lucky sealed holding of arcwall 232 of the sealing member 23 being now loaded on valve core 21 is on the external diameter of polished rod or sucker rod。Referring to Fig. 4, multiple seal convexities 2321 being parallel to each other are disposed on the first arcwall 232, spacing is had between multiple seal convexities 2321, when clamping polished rod or sucker rod, seal convexity 2321 crimp, on the one hand due to the existence of spacing, it is made to have bigger deformation range, to adapt to the sealing of the polished rod to different-diameter or sucker rod；On the other hand, the similar multistage O RunddichtringO design of multiple seal convexities 2321, make it have higher bearing capacity。It addition, the two of sealing member 23 sidewalls 231 and the second arcwall 233 can ensure the valve core 21 sealing effectiveness in lateral through hole 12, it is necessary to supplementary, though above sealing position is described separately, but exist as entirety in seal operation process。The sealing member 23 of the present invention allows for using and installing factor design, and it meets lateral through hole 12 and vertically sealing to polished rod or sucker rod in runner 11 simultaneously, and is easily installed and adjusts。The sealing member 23 of the present invention can directly be sleeved on valve core 21, and it, without manual compression, has avoided anthropic factor when valve core 21 is installed。
Referring to Fig. 1 and Fig. 5, seal box 25 is for the closure of main body 10 two ends side opening and fixing of adjusting screw rod 24, and adjusting screw rod 24 leans on and the traveling realizing valve core 21 of threadeding between seal box 25；The outer end of seal box 25 is connected to seal pressure cap 29, adjusting screw rod 24 passes one end of seal pressure cap 29 and operating side is connected to spacing handwheel 30, spacing handwheel 30 is for limiting the stroke of valve core 21, spool key 22 is avoided to deviate from from guide key groove, the other end of adjusting screw rod 24 is articulated in valve core 21, by regulating spacing handwheel 30, adjusting screw rod 24 is then made to drive valve core 21 to realize moving back and forth in lateral through hole 12；Pad 26, sealing gasket 27 and back-up ring 28 it is disposed with between seal box 25 and seal pressure cap 29, pad 26 compresses with the shoulder hole edge within seal box 25, isolation inside and outside pad 26, sealing gasket 27, back-up ring 28 and main realization body 10 chamber of seal pressure cap 29, it is prevented that introduced contaminants enters the chamber of main body 10 side opening。
The invention process process is as follows: be fixed on valve core 21 by spool key 22, then sealing member 23 is directly sleeved on valve core 21, mounted valve core 21 is pushed in the lateral through hole 12 of blowout prevention four-way main body 10 by the frock utilizing Aided design, ensures to align with the guide key groove of main body 10 sidewall in the position of spool key 22 before pushing。Again adjusting screw rod 24 being put into seal box 25, utilize screw fixing seal box 25, seal box 25 is tubular structure, and one end is provided with the installation round platform 251 being connected with main body 10, is fixed in main body 10 by seal box 25 by bolt。Then gasket sheet 26, sealing gasket 27 and back-up ring 28 and seal pressure cap 29 are installed again, the other end of seal box 25 is sealed。Vertical runner 11 penetrates polished rod or the sucker rod of different-diameter, utilizes adjusting screw rod 24 that valve core 21 is adjusted to correct position, carry out seal and pressure bearing test, test by after can install and use。
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
The sealing member of the present invention is made up of elastomeric material, its structure is simultaneously achieved the sealing of horizontal direction, axial seal and radial seal, and level is convexly equipped with multiple seal convexity separately on its one end relative with vertical runner, existence due to spacing, seal convexity has bigger deformation range after being extruded, when the polished rod of valve core and different-diameter or sucker rod contact, this sealing member suitably can regulate according to the roofbolt size of the polished rod of different-diameter or sucker rod, it is thus possible to meet the polished rod to different bar footpaths or the sealing of sucker rod, there is the effect of reducing。Meanwhile, sealing member is directly sleeved on valve core by the present invention, it is not necessary to manual pressing plate compresses sealing member, has avoided anthropic factor when valve core is installed, has installed more simple。
The foregoing is only several embodiments of the present invention, the embodiment of the present invention can be carried out various change or modification without deviating from the spirit and scope of the present invention according to application documents disclosure by those skilled in the art。
Claims (8)
1. a blowout prevention four-way, it is characterised in that comprising:
Main body (10), it has vertical runner (11), the both sides of described main body (10) offer two lateral through holes (12) of level of relative, two described lateral through holes (12) are connected with described vertical runner (11) respectively, and described lateral through hole (12) is sealedly connected with seal box (25)；
Valve core (21), it is slidably disposed in described lateral through hole (12), described valve core (21) offers the valve core passage (211) of the sandwiched body of rod, being provided with sealing member (23) in described valve core passage (211), one end that described sealing member (23) is relative with described vertical runner (11) is provided with a plurality of spaced seal convexity (2321)；
Adjusting screw rod (24), it can wear and be connected in described seal box (25) with moving horizontally, and described adjusting screw rod (24) drives with described valve core (21) and is connected。
2. blowout prevention four-way according to claim 1, it is characterized in that, described valve core (21) is connected to spool key (22), being provided with guide key groove on the inwall of described lateral through hole (12), described spool key (22) is matched with described guide key groove。
3. blowout prevention four-way according to claim 1, it is characterized in that, described sealing member (23) includes two sidewalls being parallel to each other (231), one end of two described sidewalls (231) connects first arcwall (232) of depression between oriented said two sidewall (231), the other end of two described sidewalls (231) is connected to the second arcwall (233), and the arc projection direction of described second arcwall (233) is perpendicular with said two sidewall (231)；Described valve core (21) offers horizontal seal groove (212) on side diametrically respectively, the axial seal groove (213) that the one end with two described horizontal seal grooves (212) is connected is offered in described valve core passage (211), described valve core (21) offers radial seal groove (214), described radial seal groove (214) is connected with the other end of said two horizontal seal groove (212), described first arcwall (232) is arranged in described axial seal groove (213), described sidewall (231) is arranged in described horizontal seal groove (212), described second arcwall (233) is arranged in described radial seal groove (214)。
4. blowout prevention four-way according to claim 3, it is characterised in that multiple described seal convexities (2321) being parallel to each other are disposed on described first arcwall (232)。
5. blowout prevention four-way according to claim 1, it is characterised in that described valve core passage (211) is semicircle, and the diameter of described valve core passage (211) is more than the diameter of the described body of rod。
6. blowout prevention four-way according to claim 1, it is characterised in that the outer end of described seal box (25) is connected to seal pressure cap (29)。
7. blowout prevention four-way according to claim 6, it is characterised in that the operating side of described adjusting screw rod (24) is connected to spacing handwheel (30)。
8. blowout prevention four-way according to claim 6, it is characterised in that be provided with back-up ring (28) between described seal pressure cap (29) and described seal box (25)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410693533.2A CN105696971A (en) | 2014-11-26 | 2014-11-26 | Blowout prevention four-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410693533.2A CN105696971A (en) | 2014-11-26 | 2014-11-26 | Blowout prevention four-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105696971A true CN105696971A (en) | 2016-06-22 |
Family
ID=56294995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410693533.2A Pending CN105696971A (en) | 2014-11-26 | 2014-11-26 | Blowout prevention four-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105696971A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056418A (en) * | 1990-10-18 | 1991-10-15 | Granger Stanley W | Self-adjusting automatic locking piston for RAM blowout preventers |
| CN201440599U (en) * | 2009-04-30 | 2010-04-21 | 深圳日海通讯技术股份有限公司 | Sealing piece |
| CN202081851U (en) * | 2010-07-28 | 2011-12-21 | 毕友军 | Polish rod sealing apparatus |
| CN202970593U (en) * | 2012-12-21 | 2013-06-05 | 孙松宇 | Multifunctional sealer device |
| CN103670321A (en) * | 2013-12-18 | 2014-03-26 | 纽威石油设备（苏州）有限公司 | Manual operation flashboard type sucker rod blowout preventer |
| CN204283330U (en) * | 2014-11-26 | 2015-04-22 | 中国石油天然气集团公司 | Blowout prevention four-way |
-
2014
- 2014-11-26 CN CN201410693533.2A patent/CN105696971A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056418A (en) * | 1990-10-18 | 1991-10-15 | Granger Stanley W | Self-adjusting automatic locking piston for RAM blowout preventers |
| CN201440599U (en) * | 2009-04-30 | 2010-04-21 | 深圳日海通讯技术股份有限公司 | Sealing piece |
| CN202081851U (en) * | 2010-07-28 | 2011-12-21 | 毕友军 | Polish rod sealing apparatus |
| CN202970593U (en) * | 2012-12-21 | 2013-06-05 | 孙松宇 | Multifunctional sealer device |
| CN103670321A (en) * | 2013-12-18 | 2014-03-26 | 纽威石油设备（苏州）有限公司 | Manual operation flashboard type sucker rod blowout preventer |
| CN204283330U (en) * | 2014-11-26 | 2015-04-22 | 中国石油天然气集团公司 | Blowout prevention four-way |
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Application publication date: 20160622 |