CN220870114U - 210MPa ultra-high pressure manual flat gate valve - Google Patents
210MPa ultra-high pressure manual flat gate valve Download PDFInfo
- Publication number
- CN220870114U CN220870114U CN202322183024.2U CN202322183024U CN220870114U CN 220870114 U CN220870114 U CN 220870114U CN 202322183024 U CN202322183024 U CN 202322183024U CN 220870114 U CN220870114 U CN 220870114U
- Authority
- CN
- China
- Prior art keywords
- valve
- rod
- cover
- valve cover
- ultra
- 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 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000004519 grease Substances 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 238000013461 design Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 241000191291 Abies alba Species 0.000 description 2
- 235000004507 Abies alba Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model belongs to the technical field of petroleum drilling and production equipment, and particularly relates to a 210MPa ultra-high pressure manual flat gate valve. The valve comprises a valve body, a valve cover, a valve rod and a valve plate, wherein the valve body comprises a valve seat and a sealing element between the valve seat and the valve body; the valve cover comprises an upper valve cover at the upper part of the valve body and a lower valve cover at the lower part of the valve body; the valve rod is connected with the valve plate through a T-shaped groove structure, the tail rod at the lower part is connected with the valve plate through the T-shaped groove structure, and the valve rod comprises a double-spring rod sealing structure between the upper valve cover and the lower valve cover and a transmission structure at the upper part of the valve rod; the valve plate and the valve seat form a sealing surface, and can be driven by the valve rod to realize stable sliding. The sealing structure and the transmission structure mainly based on double spring rod sealing are optimally designed, and long-term stable work under the condition of ultra-high pressure of 210MPa can be realized.
Description
Technical Field
The utility model belongs to the technical field of petroleum drilling and production equipment, and particularly relates to a 210MPa ultra-high pressure manual flat gate valve.
Background
At present, deep and ultra-deep oil gas resources in China account for 34% of the total amount of national oil gas resources, in recent years, the well depth of exploration wells for exploiting deep and ultra-deep oil gas breaks through 9000 meters, the maximum pressure of part of exploration well testing operation breaks through 131MPa in the process of exploiting the oil gas resources, and according to well control specifications in the testing operation, 175MPa (25000 psi) and even 210MPa (30000 psi) are adopted as design pressures of wellhead devices and christmas trees.
The highest design pressure of the flat gate valve of the standard of the API SPEC 6A wellhead device and christmas tree device standard is 138MPa (20000 psi), and the working condition requirements of acidizing fracturing and testing operation of an ultra-deep well under extreme conditions cannot be met, so that the ultra-high pressure manual flat gate valve of 175MPa and 210MPa above is designed, a stable and efficient sealing structure is optimally designed, and the flat gate valve becomes a necessary choice for solving the working problem of the extreme working condition by a person skilled in the art.
Disclosure of utility model
In order to solve the problems, the utility model provides a 210MPa ultra-high pressure manual flat gate valve, optimally designs a sealing structure and a transmission structure which mainly adopt double-spring sealing, and realizes long-term stable work under the condition of 210MPa ultra-high pressure.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a210 MPa ultra-high pressure manual flat gate valve comprises a valve body, a valve cover, a valve rod and a valve plate, wherein the valve body comprises a valve seat; the valve cover comprises an upper valve cover at the upper part of the valve body and a lower valve cover at the lower part of the valve body; the valve rod is connected with the valve plate through a T-shaped groove structure, the tail rod is connected with the valve plate through a T-shaped groove structure, and the valve rod is driven through a transmission structure; the valve is characterized in that an upper annular space is arranged between the valve rod and the upper valve cover, the upper double-spring seal is arranged in the upper annular space, an upper packing pressing cap is arranged, the inner side of the upper double-spring seal is attached to the valve rod to form a seal by pressing the upper double-spring seal, and the outer side of the upper double-spring seal is attached to the outer side of the upper annular space of the upper valve cover to form a seal; the tail rod with lower annular space that forms between the lower valve gap be equipped with down double spring seal in the lower annular space to be equipped with down packing and press the cap, through down double spring seal compresses tightly, make down double spring seal inboard with the tail rod laminating forms sealedly, outside and the laminating of the lower annular space outside of lower valve gap form sealedly.
In a preferred embodiment of the utility model, a first chamfer angle with a certain angle is arranged at the position of the upper valve cover close to the middle part of the valve body, a first reverse sealing conical surface is arranged at the lower part of the valve rod, and the first chamfer angle and the first reverse sealing conical surface form a first sealing surface; the lower valve cover is close to the middle part of the valve body and is also provided with a second chamfer at a certain angle, the upper part of the tail rod is provided with a second inverted sealing conical surface, and the second chamfer and the second inverted sealing conical surface form a sealing surface.
In a preferred embodiment of the present utility model, grease injection holes are provided in both the upper and lower valve caps.
In a preferred embodiment of the utility model, the transmission structure comprises a screw rod, a bearing pressing cap, a shaft sleeve and a hand wheel, wherein the upper end of the valve rod is fixedly connected with the lower end of the screw rod from bottom to top in sequence, the upper end of the screw rod is fixedly connected with the lower end of the shaft sleeve, the bearing is arranged in the bearing pressing cap, the hand wheel is arranged at the upper end of the shaft sleeve, the hand wheel drives the shaft sleeve to drive the screw rod to rotate through the bearing, and the hand wheel is converted into the up-down motion of the valve rod through the rotation of the screw rod.
Compared with the prior art, the 210MPa ultra-high pressure manual flat gate valve has the advantages that: the hand wheel and screw rod transmission structure is adopted to realize the light switching operation of the valve, the double spring rods arranged between the upper valve cover and the lower valve cover and the valve rod are used for sealing, so that the compact sealing of the valve rod and the upper valve cover and the compact sealing of the lower tail rod and the lower valve cover are realized, the complex sealing are avoided, the difficulty of later maintenance is reduced, the design pressure of the designed 210MPa ultra-high pressure manual flat gate valve is 210MPa, and the corresponding sealing structure is also suitable for 175MPa manual flat gate valve and can work stably for a long time under the ultra-high pressure condition of 210MPa or below.
Drawings
FIG. 1 is a diagram of a structure of a 210MPa ultra-high pressure manual flat gate valve of the present utility model.
Fig. 2 is an enlarged view of a portion of the dual spring rod seal at K in fig. 1.
Description of the code in the drawings:
1-valve body, 101-valve seat, 102-sealing ring, 103-lip seal, 2-upper valve cover, 2 a-upper annular space, 2 b-chamfer, 2 c-reverse sealing conical surface, 201-grease injection hole, 202-grease injection valve, 3-lower valve cover, 3 a-upper annular space, 3 b-chamfer, 3 c-reverse sealing conical surface, 301-grease injection hole, 302-grease injection valve, 4-valve rod, 401-upper double spring seal, 402-upper packing press cap, 403-screw rod, 404-bearing, 405-bearing press cap, 406-shaft sleeve, 407-hand wheel, 5-valve plate, 6-tail rod, 601-lower double spring seal, 602-lower packing press cap.
Detailed Description
In order to make the purposes, technical schemes and advantages of the utility model more clear, the utility model is further described in detail below by means of the attached drawings and examples.
In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate the azimuth or the positional relationship based on the azimuth or the positional relationship shown in the drawings, and are only for convenience of description of the present utility model and simplification of the description. Rather than indicating or implying that the apparatus or elements herein referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Fig. 1 shows a structure diagram of a 210MPa ultra-high pressure manual flat gate valve according to the present utility model, which specifically includes: the valve comprises a valve body 1, an upper valve cover 2, a lower valve cover 3, a valve rod 4, a valve plate 5 and a tail rod 6, wherein the valve body 1 comprises two valve seats 101, a sealing ring 102 and a lip-shaped sealing ring 103 for sealing the valve seats 101, and the two valve seats 101 are symmetrically distributed on two sides of the valve plate 5; the upper surface and the lower surface of the valve body 1 are respectively connected with an upper valve cover 2 and a lower valve cover 3, the upper valve cover 2 and the lower valve cover 3 are provided with a grease injection hole 201 and a grease injection hole 301, and the orifices of the grease injection hole 201 and the grease injection hole 301 are respectively provided with a grease injection valve 202 and a grease injection valve 302; the lower extreme of valve rod 4 links to each other with valve plate 5 upper portion through T type groove structure, and the upper end of tail rod 6 is located the lower part of valve plate 5, links to each other with the lower part of valve plate 5 through T type groove.
Wherein, be equipped with upper portion annular space 2a between valve rod 4 and upper valve gap 2, be equipped with two spring seals 401 in upper portion annular space 2a to set up packing and press cap 402, through compressing tightly two spring seals 401, make the inboard laminating of two spring seals 401 and valve rod 4 form sealedly, the outside forms sealedly with the laminating of the upper annular space 2a outside of upper valve gap 2. The lower annular space 3a formed between the tail rod 6 and the lower valve cover 3 is also provided with a lower double-spring seal 601 in the lower annular space 3a, and a lower packing pressing cap 602 is provided, and the inner side of the lower double-spring seal 601 is attached to the tail rod 6 to form a seal by pressing the lower double-spring seal 601, and the outer side is attached to the outer side of the lower annular space 3a of the lower valve cover 3 to form a seal.
The transmission structure of the valve rod 4 comprises the valve rod 4, a screw rod 403, a bearing 404, a bearing pressing cap 405, a shaft sleeve 406 and a hand wheel 407, wherein the upper end of the valve rod 4 is fixedly connected with a screw nut on the screw rod 403 from bottom to top, the upper end of the screw rod 403 is fixedly connected with the lower end of the shaft sleeve 406, the hand wheel 407 is installed at the upper end of the shaft sleeve 406, the bearing pressing cap 405 is internally provided with the bearing 404, the upper part of the bearing pressing cap 405 drives the screw rod 403 through the shaft sleeve 406 by the hand wheel 407 to realize rotation, and the rotation of the screw rod 403 is converted into the up-down motion of the valve rod 4. The screw rod 403 can realize a larger transmission ratio and light switching operation of the flat gate valve, thereby realizing the on and off of fluid flowing through the flat gate valve.
Fig. 2 shows that the upper valve cover 2 is provided with a chamfer 2b (the first chamfer) with a certain angle near the middle part of the valve body 1, the lower part of the valve rod 4 is provided with an inverted sealing conical surface 2c (the first inverted sealing conical surface), and the chamfer 3b and the inverted sealing conical surface 3c form a sealing surface (the first sealing surface); the same lower valve cap 3 is also provided with a chamfer 3b (the second chamfer) at a certain angle near the middle of the valve body 1, the upper part of the tail rod 6 is provided with a reverse sealing conical surface 3c (the reverse sealing conical surface), and the chamfer 3b and the reverse sealing conical surface 3c form a sealing surface (the second sealing surface). By means of this sealing surface, the upper and lower double spring seals 401, 601 can be replaced in-line.
The foregoing is merely exemplary of the embodiments of the utility model and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the utility model, which modifications would also be considered to be within the scope of the utility model.
Claims (3)
1. A210 MPa ultra-high pressure manual flat gate valve comprises a valve body, a valve cover, a valve rod and a valve plate, wherein the valve body comprises a valve seat; the valve cover comprises an upper valve cover at the upper part of the valve body and a lower valve cover at the lower part of the valve body; the valve rod is connected with the valve plate through a T-shaped groove structure, the tail rod is connected with the valve plate through a T-shaped groove structure, and the valve rod is driven through a transmission structure; the valve is characterized in that an upper annular space is arranged between the valve rod and the upper valve cover, an upper double-spring seal is arranged in the upper annular space, an upper packing pressing cap is arranged, the inner side of the upper double-spring seal is attached to the valve rod to form a seal by pressing the upper double-spring seal, and the outer side of the upper double-spring seal is attached to the outer side of the upper annular space of the upper valve cover to form a seal; the tail rod with lower annular space that forms between the lower valve gap be equipped with down double spring seal in the lower annular space to be equipped with down packing and press the cap, through down double spring seal compresses tightly, make down double spring seal inboard with the tail rod laminating forms sealedly, outside and the laminating of the lower annular space outside of lower valve gap form sealedly.
2. The ultra-high pressure manual flat gate valve with 210MPa according to claim 1, wherein a first chamfer angle with a certain angle is arranged at the position of the upper valve cover close to the middle part of the valve body, a first reverse sealing conical surface is arranged at the lower part of the valve rod, and the first chamfer angle and the first reverse sealing conical surface form a first sealing surface; the lower valve cover is close to the middle part of the valve body and is also provided with a second chamfer at a certain angle, the upper part of the tail rod is provided with a second inverted sealing conical surface, and the second chamfer and the second inverted sealing conical surface form a sealing surface.
3. The ultra-high pressure manual flat gate valve with 210MPa according to claim 1, wherein the upper valve cover and the lower valve cover are provided with grease injecting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322183024.2U CN220870114U (en) | 2023-08-14 | 2023-08-14 | 210MPa ultra-high pressure manual flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322183024.2U CN220870114U (en) | 2023-08-14 | 2023-08-14 | 210MPa ultra-high pressure manual flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220870114U true CN220870114U (en) | 2024-04-30 |
Family
ID=90814048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322183024.2U Active CN220870114U (en) | 2023-08-14 | 2023-08-14 | 210MPa ultra-high pressure manual flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220870114U (en) |
-
2023
- 2023-08-14 CN CN202322183024.2U patent/CN220870114U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101054968B (en) | Hydraulic oil pump | |
| US10995587B2 (en) | Reversing valve for hydraulic piston pump | |
| CN201265392Y (en) | High-pressure anti-corrosion downhole safety valve for oil gas well | |
| CN107893644B (en) | Underground hydraulic control device | |
| CN220870114U (en) | 210MPa ultra-high pressure manual flat gate valve | |
| CN209339895U (en) | Adjustable offset pumping unit rod sealing device | |
| CN201416411Y (en) | Dual-aligning movable packing kit for polished rod of oil pump | |
| CN205743831U (en) | Bore hole circulating valve panel assembly | |
| CN200989177Y (en) | Polishing rod sealing device | |
| CN107100997B (en) | Lip-shaped sealing ring and plug valve thereof | |
| CN204961280U (en) | Highly deviated well oil -well pump standing valve assembly | |
| CN2538953Y (en) | Oil well oil-pumping aid | |
| CN201902188U (en) | Integral type pumping well head device | |
| CN207673314U (en) | A kind of packing element assembly of breakage-proof | |
| CN218582387U (en) | 175MPa manual flat valve | |
| CN201106552Y (en) | Directional closing-by-force type oil well pump standing valve | |
| CN219159589U (en) | Gate valve for christmas tree | |
| CN217602621U (en) | Double-seal automatic deviation-adjusting compensation wellhead blowout preventer | |
| CN219974756U (en) | Injection and production integrated oil pump | |
| CN111236895B (en) | Normally open type thermal recovery exhaust valve | |
| CN107237611B (en) | High-temperature high-pressure oil well oil pump blowout prevention valve | |
| CN2883728Y (en) | Dual-action link type pump tube free oil-well pump | |
| CN111022674B (en) | Flat gate valve for oil field | |
| CN218816338U (en) | Underground switch valve | |
| CN113863882B (en) | Shaft control tool with pressing pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |