CN220891128U - Hydraulic plug valve - Google Patents
Hydraulic plug valve Download PDFInfo
- Publication number
- CN220891128U CN220891128U CN202322634094.5U CN202322634094U CN220891128U CN 220891128 U CN220891128 U CN 220891128U CN 202322634094 U CN202322634094 U CN 202322634094U CN 220891128 U CN220891128 U CN 220891128U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- section connecting
- connecting end
- valve body
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 83
- 238000004891 communication Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Sliding Valves (AREA)
Abstract
The utility model relates to a hydraulic plug valve, and belongs to the technical field of plug valve equipment. The valve comprises a valve body, a valve cover, a valve core and a hydraulic head, wherein a valve cavity is formed in the valve body, an upper opening is formed in the valve body at the top of the valve cavity, the valve cover is arranged on the upper opening through threads, the valve core is movably arranged in the valve cavity below the valve cover through a sealing assembly, the hydraulic head is fixedly arranged on the valve body above the valve cover through a support, a rotating shaft of the hydraulic head is fixedly connected with the valve core, one end of the valve body is provided with a long-section connecting end, the other end of the valve body is provided with a short-section connecting end, communication holes are respectively formed in the long-section connecting end and the short-section connecting end, and the communication holes are respectively communicated with the interior of the valve cavity. The hydraulic plug valve solves the problem that the sealing performance of the flange plate joint and the valve core position of the existing hydraulic plug valve is poor.
Description
Technical Field
The utility model relates to a hydraulic plug valve, and belongs to the technical field of plug valve equipment.
Background
A plug valve is a valve which is opened or closed by rotating 90 degrees to make the passage opening on the plug communicate with or separate from the passage opening on the valve body. In order to improve the convenience and stability of the operation of the plug valve, the invention patent application with the prior application publication number of CN104373623A discloses a hydraulic plug valve for an oil field, and the stability and convenience of a valve opening and closing valve of the hydraulic plug valve are achieved in a hydraulic driving mode.
Although the hydraulic plug valve can meet the use requirement of the valve to a certain extent, the hydraulic plug valve has the problems of troublesome installation and poor sealing performance due to the self-structure of the hydraulic plug valve, and the specific reasons are as follows: the flange plates are respectively arranged at the two ends of the valve body of the hydraulic plug valve, when the flange plates are connected with the pressure pipeline, a plurality of bolts are required to be installed, the operation is troublesome, the assembly and the disassembly are difficult, and the flange plates are easy to deform (turn angle) due to the influence of the combined moment of the bolt load, the counter force of the gasket and the medium pressure after being connected with the pressure pipeline, so that the pressing force of the flange plates on the gasket is uneven, and the joint of the flange plates is leaked; on the other hand, the partition board and the valve core cavity of the hydraulic plug valve are only provided with a single-layer sealing ring, and in the use process, the upper end and the lower end of the valve core are easy to have sealing failure, so that the risk of leakage is caused, and therefore, the hydraulic plug valve is necessary to be improved, so that the problems existing in the existing hydraulic plug valve are solved.
Disclosure of Invention
The utility model aims at: the hydraulic plug valve is compact in structure and ingenious in design, and solves the problem that sealing performance is poor at a flange connection position and a valve core position of an existing hydraulic plug valve.
The technical scheme of the utility model is as follows:
The utility model provides a hydraulic plug valve, includes valve body, valve gap, case and hydraulic head, its characterized in that: the valve body is internally provided with a valve cavity, the valve body at the top of the valve cavity is provided with an upper opening, a valve cover is arranged on the upper opening in a threaded manner, a valve core is movably arranged in the valve cavity below the valve cover through a sealing component, a hydraulic head is fixedly arranged on the valve body above the valve cover through a support, a rotating shaft of the hydraulic head is fixedly connected with the valve core, one end of the valve body is provided with a long section connecting end, the other end of the valve body is provided with a short section connecting end, communication holes are respectively arranged in the long section connecting end and the short section connecting end, and the communication holes are respectively communicated with the interior of the valve cavity.
The sealing assembly consists of a sealing arc piece, an upper sealing ring, a lower sealing ring and an arc piece sealing ring, wherein the sealing arc piece is tile-shaped, the sealing arc piece is symmetrically arranged in an annular valve cavity between the valve core and the inner wall of the valve body, a liquid inlet hole is correspondingly formed between the sealing arc piece and the communication hole, the upper sealing ring is arranged between the valve core on one side above the sealing arc piece and the inner wall of the valve body, and the lower sealing ring is arranged between the valve core on one side below the sealing arc piece and the inner wall of the valve body.
And a sealing groove is arranged on the sealing arc piece at the outer side of the liquid inlet hole, and a sealing ring is arranged in the sealing groove.
The long section connecting end is movably provided with a wing nut through a spiral clamp spring and a fan-shaped retainer ring, the outer circle of the short section connecting end is provided with an external thread, and the inside of the short section connecting end is provided with an inner sealing ring.
The outer circle of the long section connecting end is provided with a flange, and the end head of the long section connecting end is conical.
The valve core is a cylinder with a variable diameter, one end with a small diameter of the valve core penetrates through the valve cover and extends to the upper side of the valve cover, and one end with a small diameter of the valve core extending to the upper side of the valve cover is connected with the rotating shaft through a key and a key groove in a matched and sleeved mode.
The valve cover is connected with the upper opening of the valve body in a sealing way through a sealing ring.
The utility model has the advantages that:
The hydraulic plug valve is compact in structure and ingenious in design, and the hydraulic head drives the rotary shaft to rotate so as to drive the valve core to rotate, so that the plug valve is opened or closed; when the valve core rotates, the sealing arc piece, the upper sealing ring and the lower sealing ring are mutually matched, so that the valve core is sealed, and the problem of unexpected leakage of the valve core in the rotating process is prevented; the wing nuts are arranged on the long section connecting ends of the valve body, and the external threads are arranged on the short section connecting ends of the valve body, so that the connection ends of the valve body can be quickly abutted with the pressure pipeline, the loading and unloading work efficiency of the hydraulic plug valve and the pressure pipeline can be effectively improved, the tightness of the connection parts of the hydraulic plug valve and the pressure pipeline during the reloading can be ensured, and the problem of poor sealing performance of the connection parts of the flange plates and the valve core positions existing in the conventional hydraulic plug valve is solved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1 in the direction A-A;
FIG. 3 is a schematic top view of the structure of FIG. 1;
fig. 4 is a schematic cross-sectional structure of B-B of fig. 3.
In the figure: 1. a valve body; 2. a valve cover; 3. a valve core; 4. a hydraulic head; 5. a long section connecting end; 6. a short segment connecting end; 7. a communication hole; 8. a fluid flow hole; 9. sealing the arc piece; 10. an upper sealing ring; 11. a lower sealing ring; 12. arc piece sealing ring; 13. a liquid inlet hole; 14. a side arc piece; 15. a flange; 16. a wingnut; 17. a sector retainer ring; 18. spiral clamp springs; 19. a rotation shaft; 20. an inner seal ring; 21. and a grease nipple assembly.
Detailed Description
The hydraulic plug valve comprises a valve body 1, a valve cover 2, a valve core 3 and a hydraulic head 4, wherein a valve cavity is arranged in the valve body 1, one end of the valve body 1 is provided with a long section connecting end 5, the other end of the valve body 1 is provided with a short section connecting end 6, communication holes 7 are respectively arranged in the long section connecting end 5 and the short section connecting end 6, and the communication holes 7 are respectively communicated with the interior of the valve cavity.
The valve body 1 at the top of the valve cavity is provided with an upper opening, the upper opening is provided with a valve cover 2 in a threaded manner, the valve cover 2 is in sealing connection with the upper opening of the valve body 1 through a sealing ring, and the purpose of the arrangement is that: the tightness between the valve cover 2 and the valve body 1 is ensured.
Valve core 3 is movably mounted in the valve cavity below valve cover 2 through sealing component, valve core 3 is a cylinder with variable diameter, thick diameter end of valve core 3 is arranged in the valve cavity, fluid flow hole 8 is arranged on circumference of thick diameter end of valve core 3, thin diameter end of valve core 3 is arranged at one end of thick diameter end of valve core 3, thin diameter end of valve core 3 penetrates valve cover 2 to extend to above valve cover 2, lower boss is arranged at the other end of thick diameter end of valve core 3, and upper boss is arranged between thick diameter end of valve core 3 and thin diameter end of valve core 3.
The sealing assembly consists of sealing arc pieces 9, an upper sealing ring 10, a lower sealing ring 11 and an arc piece sealing ring 12, wherein the sealing arc pieces 9 are tile-shaped, the sealing arc pieces 9 are symmetrically arranged in an annular valve cavity between the valve core 3 and the inner wall of the valve body 1, side arc pieces 14 are fixedly arranged in the valve cavity between the sealing arc pieces 9 through bolts, and the side arc pieces 14 are used for positioning the sealing arc pieces 9.
An upper sealing ring 10 is arranged between an upper boss of the valve core 3 on one side above the sealing arc piece 9 and the inner wall of the valve body 1 through a supporting ring, a lower sealing ring 11 is arranged between a lower boss of the valve core 3 on one side below the sealing arc piece 9 and the inner wall of the valve body 1 through a supporting ring, and when the valve is used, the supporting ring is used for supporting the upper sealing ring 10 and the lower sealing ring 11, so that the stability of the sealing rings is ensured, and the upper sealing ring 10 and the lower sealing ring 11 are used for sealing the upper end and the lower end of the valve core 3.
When the hydraulic plug valve is used, when the communication hole 7, the liquid inlet hole 13 and the liquid flow hole 8 of the hydraulic plug valve are communicated, the hydraulic plug valve is in an open state, and when the communication hole 7 and the liquid inlet hole 13 of the hydraulic plug valve are not communicated with the liquid flow hole 8, the hydraulic plug valve is in a closed state.
A hydraulic head 4 is fixedly arranged on the valve body 1 above the valve cover 2 through a support, the hydraulic head 4 comprises a cylinder body, a driving piston and a spline shaft sleeve, and the lower end of the cylinder body is provided with a base through a connecting flange; a driving piston is movably arranged in the cylinder body; a spline shaft sleeve is movably arranged in the cylinder body below the driving piston; the upper end of the spline shaft sleeve extends into the driving piston and is connected with the driving piston; the top end of the cylinder body is movably provided with a mandrel through an upper cover and a gland, the lower end of the mandrel penetrates through the upper cover and the driving piston and is movably connected with a spline shaft sleeve, and a connecting tooth holder is movably arranged in a connecting flange below the spline shaft sleeve; the connection toothholder is connected with the spline shaft sleeve, and the rotation axis 19 is installed through key and keyway cooperation to the connection toothholder, and during the use, external oil supply unit reaches the purpose that drive piston moved up or down in the piston chamber through the mode of intercommunication oilhole oiling or unloading, and when drive piston moved in the piston chamber, drive piston will take place the rotation in step under its cooperation of direction screw tooth and direction screw groove, and drive piston rotation in-process will drive the synchronous rotation of connection toothholder through the spline shaft sleeve, and the rotation axis 19 is driven in the rotation of connection toothholder in-process.
The small diameter end of the valve core 3 extending to the upper part of the valve cover 2 is connected with the rotating shaft 19 through the matching and sleeving of a key and a key groove, and when the rotating shaft 19 rotates in use, the valve core 3 is driven to rotate through the rotating shaft 19.
The outer circle of the long section connecting end 5 of the valve body 1 is provided with a flange 15, the end head of the long section connecting end 5 is conical, the long section connecting end 5 is sleeved with a wing nut 16, a fan-shaped check ring 17 is sleeved between the wing nut 16 and the long section connecting end 5, one end of the fan-shaped check ring 17 is in interference connection with the flange 15, an inner boss is arranged on the inner side of the wing nut 16, the inner boss is in interference connection with an outer boss on the circumference of the fan-shaped check ring 17, when the valve is used, limiting of the wing nut 16 is achieved through the fan-shaped check ring 17, the wing nut 16 can rotate on the long section connecting end 5 of the valve body 1, and the valve is conveniently in locking connection with a thread end of a pressure pipeline through threads.
The other end of the fan-shaped retainer ring 17 extends to the outer side of the wing nut 16, and a spiral clamp spring 18 is arranged on the fan-shaped retainer ring 17 extending to the outer side of the wing nut 16, so that the purpose of the arrangement is that: the sector-shaped retainer ring 17 is locked in the wing nut 16 by means of a spiral retainer spring 18.
External threads are arranged on the outer circle of the short section connecting end 6 of the valve body 1, an inner sealing ring 20 is arranged inside the short section connecting end 6, and the external threads of the short section connecting end 6 are used for connecting nuts on a pressure pipeline, so that the purpose of rapid assembly of the pressure pipeline is achieved.
The valve body 1 is provided with an oil filling hole which is communicated with a valve cavity of the valve body 1, and a grease nipple assembly 21 is arranged in the oil filling hole.
When the hydraulic plug valve is used, firstly, the end head with external threads of the first pressure pipeline is aligned with the long section connecting end 5 of the valve body 1, then, the end head with external threads of the first pressure pipeline is inserted into the wing nut 16, the wing nut 16 is rotated, locking is achieved through matching threaded connection of the internal threads of the wing nut 16 and the external threads of the first pressure pipeline, a sealing ring is arranged in a groove end of the first pressure pipeline in the locking process of the wing nut 16, and the groove end is matched, sealed and inserted and communicated with a conical end head of the long section connecting end 5, so that one end of the hydraulic plug valve is connected with the first pressure pipeline.
After the first pressure pipeline is connected, the end head of the second pressure pipeline with the nut is aligned with the short section connecting end 6 of the valve body 1, then the short section connecting end 6 of the valve body 1 is inserted into the nut of the second pressure pipeline, and the external thread of the short section connecting end 6 of the valve body 1 is connected with the internal thread of the nut by rotating the nut, so that the short section connecting end 6 of the valve body 1 is connected with the second pressure pipeline.
When the hydraulic plug valve needs to be opened or closed, an external oil supply device supplies oil to the hydraulic head 4 through the communication oil hole, so that the rotary shaft 19 is driven to rotate, the rotary shaft 19 drives the valve core 3 to rotate, the on-off of the valve core 3 and the communication hole 7 is realized, and the purpose of opening or closing the hydraulic plug valve is achieved.
The hydraulic plug valve is compact in structure and ingenious in design, and the hydraulic head 4 drives the rotary shaft 19 to rotate so as to drive the valve core 3 to rotate, so that the plug valve is opened or closed; when the valve core 3 rotates, the sealing arc piece 9, the upper sealing ring 10 and the lower sealing ring 11 are matched with each other, so that the sealing of the valve core 3 is realized, and the problem of unexpected leakage of the valve core 3 in the rotating process is prevented; the wing nuts 16 are arranged on the long section connecting end 5 of the valve body 1, and the external threads are arranged on the short section connecting end 6 of the valve body 1, so that the connection end of the valve body 1 can be quickly abutted with a pressure pipeline, the loading and unloading work efficiency of the hydraulic plug valve and the pressure pipeline can be effectively improved, the tightness of the connection part of the hydraulic plug valve and the pressure pipeline during the reloading can be ensured, and the problem of poor sealing performance of the flange connection part and the valve core 3 position existing in the existing hydraulic plug valve is solved.
Claims (7)
1. The utility model provides a hydraulic plug valve, includes valve body (1), valve gap (2), case (3) and liquid head (4), its characterized in that: the valve body (1) is internally provided with a valve cavity, an upper opening is formed in the valve body (1) at the top of the valve cavity, a valve cover (2) is arranged on the upper opening through threads, a valve core (3) is movably arranged in the valve cavity below the valve cover (2) through a sealing assembly, a hydraulic head (4) is fixedly arranged on the valve body (1) above the valve cover (2) through a support, a rotating shaft (19) of the hydraulic head (4) is fixedly connected with the valve core (3), one end of the valve body (1) is provided with a long-section connecting end (5), the other end of the valve body (1) is provided with a short-section connecting end (6), communication holes (7) are respectively formed in the long-section connecting end (5) and the short-section connecting end (6), and the communication holes (7) are respectively communicated with the valve cavity.
2. A hydraulic plug valve according to claim 1, wherein: the sealing assembly is composed of a sealing arc piece (9), an upper sealing ring (10), a lower sealing ring (11) and an arc piece sealing ring (12), wherein the sealing arc piece (9) is tile-shaped, the sealing arc piece (9) is symmetrically arranged in an annular valve cavity between a valve core (3) and the inner wall of a valve body (1), a liquid inlet hole (13) is correspondingly formed in the sealing arc piece (9) and a communication hole (7), the upper sealing ring (10) is arranged between the valve core (3) on one side above the sealing arc piece (9) and the inner wall of the valve body (1), and the lower sealing ring (11) is arranged between the valve core (3) on one side below the sealing arc piece (9) and the inner wall of the valve body (1).
3. A hydraulic plug valve according to claim 2, wherein: a sealing groove is arranged on the sealing arc piece (9) at the outer side of the liquid inlet hole (13), and a sealing ring is arranged in the sealing groove.
4. A hydraulic plug valve according to claim 1, wherein: the long section connecting end (5) is movably provided with a wing nut (16) through a spiral clamp spring (18) and a fan-shaped retainer ring (17), the outer circle of the short section connecting end (6) is provided with an external thread, and the inside of the short section connecting end (6) is provided with an inner sealing ring (20).
5. A hydraulic plug valve according to claim 1, wherein: the outer circle of the long section connecting end (5) is provided with a flange (15), and the end head of the long section connecting end (5) is conical.
6. A hydraulic plug valve according to claim 1, wherein: the valve core (3) is a cylinder with a variable diameter, one small diameter end of the valve core (3) penetrates through the valve cover (2) and extends to the upper part of the valve cover (2), and one small diameter end of the valve core (3) extending to the upper part of the valve cover (2) is connected with the rotating shaft (19) through a key and a key groove in a matched and sleeved mode.
7. A hydraulic plug valve according to claim 1, wherein: the valve cover (2) is connected with the upper opening of the valve body (1) in a sealing way through a sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322634094.5U CN220891128U (en) | 2023-09-27 | 2023-09-27 | Hydraulic plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322634094.5U CN220891128U (en) | 2023-09-27 | 2023-09-27 | Hydraulic plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220891128U true CN220891128U (en) | 2024-05-03 |
Family
ID=90873136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322634094.5U Active CN220891128U (en) | 2023-09-27 | 2023-09-27 | Hydraulic plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220891128U (en) |
-
2023
- 2023-09-27 CN CN202322634094.5U patent/CN220891128U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108036071A (en) | A kind of anti-long-pending sand plug valve | |
| CN111795171B (en) | Long service life ball valve | |
| CN102777624B (en) | Mounted online maintenance ball valve | |
| CN202691122U (en) | Top entry type online maintenance ball valve | |
| CN101586523A (en) | Noncircular planetary gear hydraulic motor | |
| CN220891128U (en) | Hydraulic plug valve | |
| CN105822220A (en) | Hydraulic rock drill | |
| CN102434504B (en) | Hydraulic transformer with axial flow distribution | |
| CN217897828U (en) | Reinforced square drill rod cock with pressure switch | |
| CN206668180U (en) | A kind of high-pressure rotary seat for being used to rotate fuel feeding to pressure balance workover rig slips group | |
| CN114623250A (en) | Conveniently-cleaned anti-blocking throttle valve | |
| CN114233890A (en) | Low-leakage metal hard-seal fixed forged steel ball valve | |
| CN209041555U (en) | A kind of permanent magnet direct-driven mechanical seal driving device | |
| CN210068974U (en) | Three-eccentric zero-leakage metal sealing butterfly valve | |
| CN109441709A (en) | A kind of compact large torque antipollution gear type motor | |
| CN220082422U (en) | Pipeline connection structure | |
| CN220816888U (en) | Flange sealing leakage-proof device | |
| CN219176960U (en) | Butterfly valve convenient to lock | |
| CN213579927U (en) | Downhole safety valve testing device | |
| CN218347953U (en) | Flap valve for horizontal stirring kettle and horizontal stirring kettle | |
| CN216343989U (en) | Y-shaped stop valve | |
| CN221054349U (en) | Novel upper-mounted ball valve | |
| CN220980365U (en) | Integral floating seal sandwich valve for plugging pipeline open hole | |
| CN218895007U (en) | Leak-proof ball valve | |
| CN216200651U (en) | Telescopic offset type start vector sealing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |