CN204729654U - A kind of high pressure valve - Google Patents
A kind of high pressure valve Download PDFInfo
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- CN204729654U CN204729654U CN201520441248.1U CN201520441248U CN204729654U CN 204729654 U CN204729654 U CN 204729654U CN 201520441248 U CN201520441248 U CN 201520441248U CN 204729654 U CN204729654 U CN 204729654U
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- valve
- spool
- seal
- sealing
- high pressure
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Abstract
The utility model discloses a kind of high pressure valve, comprise valve body and spool, the outlet conduit and inlet pipeline that mutually form angle is had in valve body, move in turbine and worm decelerator band movable valve plug cavity between outlet conduit and inlet pipeline, in described outlet conduit inwall, side is provided with a seal valve seat, seal valve seat inner side end endoporus is provided with an annular groove, the ring-shaped valve seats Sealing contacting with spool and seal is provided with in groove, described spool contacts angle head cylindrical side and is provided with an annular groove with valve seat, the annular spool Sealing contacting with valve base seal and seal is provided with in groove, two Sealing end face close contacts during valve closing.The sealing of the utility model seal valve seat and spool adopts end face seal, the minute-pressure closing structure that sealing realizes in conjunction with the through hole that described spool front/rear end is through, improves the long durability of the stability of sealing, reliability and Sealing.
Description
Technical field
The utility model relates to valve, particularly a kind of high pressure valve, is that one is applicable to oil-gas mining, the high pressure valve under pipeline fluid conveying rugged environment.
Background technique
In petroleum production process, under balance pressure drilling, pressure break, in the industrial production such as well head formation testing, need to use the rate of flow of fluid in corresponding Valve controlling pipeline, and the liquid of down-hole mostly is high pressure abrasive fluid, in valve open moment, high pressure can be caused to wash away damage to valve, operation is caused not carry out continuously, publication number CN2580231Y discloses " a kind of plunger type micro differential pressure high pressure rectangular valve ", this technological scheme achieves minute-pressure operation by arranging through hole on a core, but due to sealing employing is the sealing of piston type tube wall, on tube wall, fluting adds the lateral seal of seal ring, although be provided with multiple-sealed, but in rugged environment, still quick abrasion is had after spool repeatedly moves up and down friction, there is the risk of leaking.
Summary of the invention
The utility model object is to provide a kind of high pressure valve, and improve valve by adopting the structure of end face ceramic seal and disliking the sealing effect omited under operating mode, maintenance is few, changes parts convenient.
To achieve these goals, scheme of the present utility model is: a kind of high pressure valve, comprise valve body and spool, the outlet conduit and inlet pipeline that mutually form angle is had in valve body, move in turbine and worm decelerator band movable valve plug cavity between outlet conduit and inlet pipeline, realize the connecting and disconnecting of outlet conduit and inlet pipeline, described spool is provided with the through hole that front/rear end is through, in described outlet conduit inwall, side is provided with a seal valve seat, seal valve seat inner side end endoporus is provided with an annular groove, the ring-shaped valve seats Sealing contacting with spool and seal is provided with in groove, described spool contacts angle head cylindrical side and is provided with an annular groove with valve seat, the annular spool Sealing contacting with valve base seal and seal is provided with in groove, two Sealing end face close contacts during valve closing, described cavity internal projection is provided with a spool sheath, described spool slides in spool sheath, spool sheath has blocked inlet tube road junction in front end, inlet tube road junction, the outer side of described outlet conduit inwall and seal valve seat are connected and are equipped with ceramic sheath, and the aperture of described ceramic sheath endoporus is greater than the aperture of seal valve seat internal control.
Scheme is further: described ring-shaped valve seats Sealing and annular spool Sealing are stupaliths, and the seal face of contact is a conical end face or circular arc end face.
Scheme is further: described spool sheath has at least blocked 1/2nd of inlet tube road junction diameter in front end, inlet tube road junction.
Scheme is further: the axis angle between described outlet conduit and inlet pipeline is 90-135 degree angle.
Scheme is further: the outlet end of described valve outlet pipeline connects described ceramic sheath and is provided with interface sheath, and the collar extension end face of interface sheath is higher than valve outlet pipeline coupling flange end face, and interface sheath is connected with valve body by screw thread.
Scheme is further: be provided with exhaust port between the cavity in described valve body and valve outer surface, exhaust port is provided with Decompression valves.
Scheme is further: the air outlet hole level of described Decompression valves is given vent to anger, and arranges lower than valve outer surface.
Scheme is further: the seal face that described ring-shaped valve seats Sealing contacts with annular spool Sealing is the tapered end face of 30 degree to 60 degree.
Scheme is further: described spool and the axial both ends of the surface of seal valve seat are symmetrical same structure.
The beneficial effects of the utility model are:
1. the angle of the utility model access way arranges and can make fluid in flow process, change its flowing state, becomes turbulent condition, and the fluid of turbulent condition can significantly reduce the damage of each component in valve.
2. the sealing of the utility model seal valve seat and spool adopts end face seal, sealing is in conjunction with the minute-pressure closing structure described spool being provided with the through through hole realization of front/rear end, and the two Sealing uses stupalith, improve the long durability of the stability of sealing, reliability and Sealing.
3. the utility model all adopts stupalith to parts that are main and fluid contact, adds the wear resistance of valve body.
4. adopt trapezium structure design between the utility model seal valve seat and outlet conduit, ensure at valve opening transient protection valve outlet pipeline not by the erosion corrosion of high pressure abrasive particle.
5. the front end and back end symplex structure of the utility model seal valve seat and spool, can make these parts reverse end for end to use, improve the utilization efficiency of these parts, save spending.
Below in conjunction with drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is the utility model valve core structure schematic diagram;
Fig. 3 is the utility model seal valve seat structural representation;
Fig. 4 is the utility model seal valve seat and seal spool status architecture schematic diagram;
Fig. 5 is two Sealing conical contact end-face structure schematic diagram, a kind of enlarged view in B portion of Fig. 4;
Fig. 6 is two Sealing arc contact end face structural representations, the another kind of enlarged view in B portion of Fig. 4
Fig. 7 is pressure-relief valve structure schematic diagram.
Embodiment
A kind of high pressure valve embodiment, as Fig. 1, Fig. 2, shown in Fig. 3, described valve comprises valve body 1 and spool 2, the outlet conduit 101 and inlet pipeline 102 that are mutually formed with angle a is had in valve body, turbine and worm decelerator 3 is with mobile in the cavity 103 of movable valve plug between outlet conduit and inlet pipeline, realize the connecting and disconnecting of outlet conduit and inlet pipeline, described spool is provided with the through through hole of front/rear end 201, through hole arranges at least 4 around even circumferential, cavity is communicated with outlet conduit 101 by through hole, when the pressure in cavity after valve open is identical with the pressure of outlet conduit, now spool two ends are micro-pressure-difference, therefore spool is controlled not by the impact of pipe fluid pressure, for this structure of high pressure valve, control valve is opened and closed very laborsaving, as the control of Low pressure valve, decrease the impact failure of high pressure to spool simultaneously, improve the working life of spool, in order to the valve piston formula tube wall changed mentioned by background technique is sealed in the problem that harsh environments can bring, the present embodiment adopts end face annular sealing configuration, first in order to increase wear resistance, in described outlet conduit inwall, side is provided with a seal valve seat 4, pass through two seals annular groove 401 and seal ring and valve body inner bore at seal valve seat excircle sidewall to seal, seal valve seat inner side end endoporus is provided with an annular groove 402, the wear-resisting annular valve base seal 5 contacting the non-steel sealed with spool is provided with in groove, described spool contacts angle head cylindrical side and is provided with an annular groove 202 with valve seat, the annular spool Sealing 6 contacting with valve base seal and seal is provided with in groove, as shown in Figure 4, two Sealing annular end face close contacts during valve closing, valve body in embodiment is cast iron or cast steel structure, two Sealings wherein use mode that is bonding or interference fit to overlap in a groove.
In embodiment: two Sealing annular end faces can be perpendicular to the plane of Sealing axis, in order to better sealing, in order to increase wear resistance, described ring-shaped valve seats Sealing and annular spool Sealing Ceramics material.
As shown in Figure 5, the seal face 7 that described ring-shaped valve seats Sealing contacts with annular spool Sealing is one and axially becomes the oblique conical end face of angle with Sealing a preferred version.
As shown in Figure 6, the seal face 7 that described ring-shaped valve seats Sealing contacts with annular spool Sealing is the circular arc end faces based on described conical end face to another preferred version.
In embodiment, in order to realize the fluid flow-disturbing to coming in from inlet pipeline, described cavity internal projection is provided with a spool sheath 8, spool sheath adopts high pressure resistant high-abrasive material, described spool slides in spool sheath, and spool sheath has at least blocked 1/2nd of inlet tube road junction diameter in front end, inlet tube road junction, and spool sheath just blocks not block input port pipeline opening, have certain distance apart from inlet tube road junction, role is exactly that convection cell carries out flow-disturbing minimizing scouring force.
In embodiment: in order to reduce directly washing away outlet conduit, the axis angle between described outlet conduit and inlet pipeline is 90-135 degree angle, and the best is 100 degree.
In embodiment: in order to improve the resistance to erosion ability stating outlet conduit, as shown in Figure 1, the outer side of described outlet conduit inwall and seal valve seat are connected and are equipped with ceramic sheath 9, wherein in order to prevent the instantaneous impact to tube wall when opening and closing from washing away, the aperture of described ceramic sheath endoporus is greater than the aperture at least 10mm of seal valve seat internal control.
In embodiment: in order to protect the adpting flange 104 of valve body; the outlet end of described valve outlet pipeline connects described ceramic sheath and is provided with interface sheath 10; the collar extension end face of interface sheath is higher than valve outlet pipeline coupling flange end face, and interface sheath is connected with valve body by screw thread.
In embodiment: as a kind of technique, as shown in Figure 1 and Figure 7, exhaust port is provided with between cavity body in described valve body and valve outer surface, exhaust port is provided with Decompression valves 11, air outlet hole 1101 level of described Decompression valves is given vent to anger, and air outlet hole is arranged lower than valve outer surface, is provided with a low groove 105 at exhaust port outlet end for this reason, Decompression valves is installed in a groove, and its pressure release knob is arranged lower than groove port.
In embodiment: in order to the impurity can gone out between two Sealings when throttle down assists to discharge by through hole, the spacing of the through hole that described spool front/rear end is through and the taper of annular spool Sealing or curved end is not more than 5mm.
A preferred version in embodiment is: the seal face that described ring-shaped valve seats Sealing contacts with annular spool Sealing is 30 degree of tapered end faces to 60 degree of angles, and the best is 45 degree.
In order to increase operation rate: the structure of described spool and the axial both ends of the surface of seal valve seat is symmetrical same structure, and such spool and seal valve seat can reverse end for end to exchange and use, and namely change conveniently, also improve utilization rate, save expense.
Claims (9)
1. a high pressure valve, comprise valve body and spool, the outlet conduit and inlet pipeline that mutually form angle is had in valve body, move in turbine and worm decelerator band movable valve plug cavity between outlet conduit and inlet pipeline, realize the connecting and disconnecting of outlet conduit and inlet pipeline, described spool is provided with the through hole that front/rear end is through, it is characterized in that, in described outlet conduit inwall, side is provided with a seal valve seat, seal valve seat inner side end endoporus is provided with an annular groove, the ring-shaped valve seats Sealing contacting with spool and seal is provided with in groove, described spool contacts angle head cylindrical side and is provided with an annular groove with valve seat, the annular spool Sealing contacting with valve base seal and seal is provided with in groove, two Sealing end face close contacts during valve closing, described cavity internal projection is provided with a spool sheath, described spool slides in spool sheath, spool sheath has blocked inlet tube road junction in front end, inlet tube road junction, the outer side of described outlet conduit inwall and seal valve seat are connected and are equipped with ceramic sheath, and the aperture of described ceramic sheath endoporus is greater than the aperture of seal valve seat endoporus.
2. a kind of high pressure valve according to claim 1, is characterized in that, described ring-shaped valve seats Sealing and annular spool Sealing are stupaliths, and the seal face of contact is a conical end face or circular arc end face.
3. a kind of high pressure valve according to claim 1, is characterized in that, described spool sheath has at least blocked 1/2nd of inlet tube road junction diameter in front end, inlet tube road junction.
4. a kind of high pressure valve according to claim 1, is characterized in that, the axis angle between described outlet conduit and inlet pipeline is 90-135 degree angle.
5. a kind of high pressure valve according to claim 1, it is characterized in that, the outlet end of described valve outlet pipeline connects described ceramic sheath and is provided with interface sheath, and the collar extension end face of interface sheath is higher than valve outlet pipeline coupling flange end face, and interface sheath is connected with valve body by screw thread.
6. a kind of high pressure valve according to claim 1, is characterized in that, is provided with exhaust port, exhaust port is provided with Decompression valves between the cavity in described valve body and valve outer surface.
7. a kind of high pressure valve according to claim 6, is characterized in that, the air outlet hole level of described Decompression valves is given vent to anger, and arranges lower than valve outer surface.
8. a kind of high pressure valve according to claim 2, is characterized in that, the seal face that described ring-shaped valve seats Sealing contacts with annular spool Sealing is the tapered end face of 30 degree to 60 degree.
9. a kind of high pressure valve according to claim 1, is characterized in that, described spool and the axial both ends of the surface of seal valve seat are symmetrical same structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520441248.1U CN204729654U (en) | 2015-06-25 | 2015-06-25 | A kind of high pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520441248.1U CN204729654U (en) | 2015-06-25 | 2015-06-25 | A kind of high pressure valve |
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| Publication Number | Publication Date |
|---|---|
| CN204729654U true CN204729654U (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520441248.1U Active CN204729654U (en) | 2015-06-25 | 2015-06-25 | A kind of high pressure valve |
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| CN (1) | CN204729654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485359A (en) * | 2016-02-05 | 2016-04-13 | 北京奥赛旗石油科技开发有限公司 | Combined control valve |
-
2015
- 2015-06-25 CN CN201520441248.1U patent/CN204729654U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485359A (en) * | 2016-02-05 | 2016-04-13 | 北京奥赛旗石油科技开发有限公司 | Combined control valve |
| CN105485359B (en) * | 2016-02-05 | 2017-09-29 | 北京奥赛旗石油科技开发有限公司 | Compound control valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |