CN220706537U - Electric wedge-shaped throttle valve for fine pressure control well drilling - Google Patents
Electric wedge-shaped throttle valve for fine pressure control well drilling Download PDFInfo
- Publication number
- CN220706537U CN220706537U CN202321477377.7U CN202321477377U CN220706537U CN 220706537 U CN220706537 U CN 220706537U CN 202321477377 U CN202321477377 U CN 202321477377U CN 220706537 U CN220706537 U CN 220706537U
- Authority
- CN
- China
- Prior art keywords
- valve
- gear reducer
- valve body
- worm gear
- fine pressure
- 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.)
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- 238000005553 drilling Methods 0.000 title claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims abstract description 4
- 238000012423 maintenance Methods 0.000 claims description 15
- 239000012530 fluid Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Abstract
The utility model discloses an electric wedge-shaped throttle valve for fine pressure control drilling, which is characterized in that an inlet flange (1) and an outlet flange (3) are respectively arranged at the inlet end and the outlet end of a valve body (2), a valve seat (4) and a valve core (6) are sequentially arranged in the valve body (2), the valve body (2) is arranged on a valve cover (7) through a valve cover nut (9), one end of a connecting rod (12) is connected with the valve core (6) through a sealing filler (10) through a positioning block (8), a conversion support (11) is arranged on the valve cover (7), a worm gear reducer (13) is arranged on the conversion support (11), the worm gear reducer (13) is connected with the other end of the connecting rod (12), a valve position indicator (16) is arranged on the worm gear reducer (13), a planetary gear reducer (14) is arranged on the side surface of the worm gear reducer (13), and the planetary gear reducer (14) is connected with a servo motor (15). The utility model solves the problem of the pressure regulation accuracy of the throttle valve and prolongs the service life of the throttle valve.
Description
Technical Field
The utility model relates to a throttle valve, in particular to an electric wedge-shaped throttle valve for fine pressure control drilling.
Background
At present, most of throttle valves used for fine pressure control drilling are of conventional structures, and the precision of the throttle valves cannot meet the requirement of fine pressure control.
Disclosure of Invention
The utility model aims at: the electric wedge-shaped throttle valve for the fine pressure control well drilling solves the problem of accuracy of pressure regulation of the throttle valve, and prolongs the service life of the throttle valve.
The technical scheme of the utility model is as follows: the throttle valve comprises a valve body, an inlet flange, an outlet flange, a valve seat, a valve core, a valve cover and a connecting rod, wherein the inlet flange and the outlet flange are respectively installed at the inlet end and the outlet end of the valve body, the valve seat 4 and the valve core are sequentially installed in the valve body, the valve body is provided with the valve cover through a valve cover nut, one end of the connecting rod is connected with the valve core through a sealing filler through a positioning block, and the throttle valve is characterized in that: the valve cover is provided with a conversion support, the conversion support is provided with a worm gear reducer, the worm gear reducer is connected with the other end of the connecting rod, the worm gear reducer is provided with a valve position indicator, the side surface of the worm gear reducer is provided with a planetary gear reducer, and the planetary gear reducer is connected with a servo motor.
The further design is: the wear bushing is fitted into the outlet flange.
The further design is: the inner hole of the valve cover is provided with a positioning groove, and the positioning block is matched with the positioning groove of the inner hole of the valve cover.
The further design is: the end face of the valve cover is provided with a positioning hole, and a positioning pin on the valve body is matched with the positioning hole to install the valve cover through a valve cover nut.
The further design is: the valve core adopts a wedge-shaped conical surface structure.
The further design is: the side of the valve body is provided with a pressure relief valve.
The further design is: a first bearing seat and a bearing are arranged on the side face of the valve body, a maintenance support guide rod is fixed above the first bearing seat and the bearing, the other end of the maintenance support guide rod is connected with a clamp, a second bearing seat and a bearing are arranged between the clamp and the maintenance guide rod support, and the maintenance support guide rod is connected with the conversion support through the clamp.
The utility model has the advantages that:
the inlet flange and the outlet flange at the inlet and outlet ends adopt a split structure with the valve body, so that the flanges with different sizes and specifications can be replaced conveniently.
The front ends of the wear-resistant lining, the valve seat and the valve core are wedged and made of integral hard alloy, and the hard alloy is deposited on the part of the front end of the valve cover and the fluid contact part, so that the wear-resistant and flushing-resistant valve has good wear resistance and long service life.
The front end of the valve core adopts a wedge-shaped structure, and fluid enters the downstream of the throttle valve along with the inclined surface of the valve core, so that the valve core of the structure has good flow guiding performance and flushing resistance.
The valve cover adopts an integral structure, and when the throttle valve is opened and closed, the valve core is always provided with a section in the valve seat, so that the stability and the shock resistance of the valve are better.
The inner hole of the valve cover is provided with a positioning groove, and the end face is provided with a positioning hole, so that the wedge shape of the front end of the valve core is ensured to be always right against the direction of fluid.
The valve core adopts a wedge-shaped conical surface structure, when the valve with the structure is opened, the throttling caliber is slowly increased, the CV characteristic curve is almost a sloping line, and the adjusting precision is particularly high.
The servo motor drives the planetary gear reducer and the worm gear reducer to control the opening and closing of the valve, and the adjustment precision is very high.
The valve side is provided with the maintenance support, and when the sealing element is maintained and replaced, the valve cover nut is only required to be loosened, so that the inner element can be taken out through the sliding and rotating maintenance support, and the sealing element is convenient to maintain and replace.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure: 1 inlet flange, 2 valve body, 3 outlet flange, 4 valve seat, 5 wear-resisting lining, 6 valve core, 7 valve cover, 8 positioning block, 9 valve cover nut, 10 sealing filler, 11 conversion bracket, 12 connecting rod, 13 worm gear reducer, 14 planetary gear reducer, 15 servo motor, 16 valve position indicator, 17 bearing frame and bearing, 18 relief valve, 19 maintenance support guide arm, 20 locating pin, 21 bearing frame and bearing, 22 clamp.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1, the throttle valve comprises a valve body 2, an inlet flange 1, an outlet flange 3, a valve seat 4, a valve core 6, a valve cover 7 and a connecting rod 12, wherein the inlet flange 1 and the outlet flange 3 are respectively arranged at the inlet end and the outlet end of the valve body 2, the valve seat 4 and the valve core 6 are sequentially arranged in the valve body 2, the valve body 2 is arranged on the valve cover 7 through a valve cover nut 9, and one end of the connecting rod 12 is connected with the valve core 6 through a sealing packing 10 by a positioning block 8, and the throttle valve is characterized in that: the valve cover 7 is provided with a conversion support 11, the conversion support 11 is provided with a worm gear reducer 13, the worm gear reducer 13 is connected with the other end of the connecting rod 12, the worm gear reducer 13 is provided with a valve position indicator 16, the side surface of the worm gear reducer 13 is provided with a planetary gear reducer 14, and the planetary gear reducer 14 is connected with a servo motor 15.
The further design is: wear bushing 5 is fitted into outlet flange 3.
The further design is: the inner hole of the valve cover 7 is provided with a positioning groove, and the positioning block 8 is matched with the positioning groove of the inner hole of the valve cover 7.
The further design is: the end face of the valve cover 7 is provided with a positioning hole, and a positioning pin 20 on the valve body 2 is matched with the positioning hole to install the valve cover 7 through a valve cover nut 9.
The further design is: the valve core 6 adopts a wedge-shaped conical surface structure.
The further design is: the side of the valve body 2 is provided with a relief valve 18.
The further design is: the valve body 2 is provided with a first bearing seat and a bearing 17 on the side surface, a maintenance support guide rod 19 is fixed above the first bearing seat and the bearing 17, the other end of the maintenance support guide rod 19 is connected with a clamp 22, a second bearing seat and a bearing 21 are arranged between the clamp 22 and the maintenance support guide rod 19, and the maintenance support guide rod 19 is connected with the conversion support 11 through the clamp 22.
Claims (7)
1. An electric wedge-shaped throttle valve for fine pressure control drilling comprises a valve body (2), an inlet flange (1), an outlet flange (3), a valve seat (4), a valve core (6), a valve cover (7) and a connecting rod (12), wherein the inlet flange (1) and the outlet flange (3) are respectively installed at the inlet end and the outlet end of the valve body (2), the valve seat (4) and the valve core (6) are sequentially installed in the valve body (2), the valve body (2) is installed on the valve cover (7) through a valve cover nut (9), and one end of the connecting rod (12) is connected with the valve core (6) through a sealing filler (10) through a positioning block (8), and the electric wedge-shaped throttle valve is characterized in that: a conversion support (11) is arranged on a valve cover (7), a worm gear reducer (13) is arranged on the conversion support (11), the worm gear reducer (13) is connected with the other end of a connecting rod (12), a valve position indicator (16) is arranged on the worm gear reducer (13), a planetary gear reducer (14) is arranged on the side face of the worm gear reducer (13), and the planetary gear reducer (14) is connected with a servo motor (15).
2. The electric wedge choke for fine pressure controlled drilling of claim 1, wherein: the outlet flange (3) is provided with a wear-resistant lining (5).
3. The electric wedge choke for fine pressure controlled drilling of claim 1, wherein: the inner hole of the valve cover (7) is provided with a positioning groove, and the positioning block (8) is matched with the positioning groove of the valve cover (7).
4. The electric wedge choke for fine pressure controlled drilling of claim 1, wherein: the end face of the valve cover (7) is provided with a positioning hole, and a positioning pin (20) on the valve body (2) is matched with the positioning hole to install the valve cover (7) through a valve cover nut (9).
5. The electric wedge choke for fine pressure controlled drilling of claim 1, wherein: the valve core (6) adopts a wedge-shaped conical surface structure.
6. The electric wedge choke for fine pressure controlled drilling of claim 1, wherein: the side surface of the valve body (2) is provided with a pressure relief valve (18).
7. The electric wedge choke for fine pressure controlled drilling of claim 1, wherein: a first bearing seat and a bearing (17) are arranged on the side face of the valve body (2), a maintenance support guide rod (19) is fixed above the first bearing seat and the bearing (17), a clamp (22) is connected to the other end of the maintenance support guide rod (19), a second bearing seat and a second bearing (21) are arranged between the clamp (22) and the maintenance support guide rod (19), and the maintenance support guide rod (19) is connected with the conversion support (11) through the clamp (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321477377.7U CN220706537U (en) | 2023-06-12 | 2023-06-12 | Electric wedge-shaped throttle valve for fine pressure control well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321477377.7U CN220706537U (en) | 2023-06-12 | 2023-06-12 | Electric wedge-shaped throttle valve for fine pressure control well drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220706537U true CN220706537U (en) | 2024-04-02 |
Family
ID=90444153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321477377.7U Active CN220706537U (en) | 2023-06-12 | 2023-06-12 | Electric wedge-shaped throttle valve for fine pressure control well drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220706537U (en) |
-
2023
- 2023-06-12 CN CN202321477377.7U patent/CN220706537U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |