CN221299131U - Automatic change control well head relief valve - Google Patents
Automatic change control well head relief valve Download PDFInfo
- Publication number
- CN221299131U CN221299131U CN202323480124.8U CN202323480124U CN221299131U CN 221299131 U CN221299131 U CN 221299131U CN 202323480124 U CN202323480124 U CN 202323480124U CN 221299131 U CN221299131 U CN 221299131U
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- safety valve
- shell
- valve
- liquid pressure
- connecting pipe
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- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses an automatic control wellhead safety valve, which relates to the technical field of safety valves and comprises a valve body assembly and an automatic opening and closing control assembly; the valve body assembly comprises a shell, the bottom end of the shell is communicated with a connecting pipe, and a rotating shaft is inserted in the middle of one side of the shell in a rotating way through a sealing bearing; the beneficial effects of the utility model are as follows: when the safety valve is in a closed state, the liquid pressure inside the connecting pipe is monitored in real time through the liquid pressure sensor, when the controller knows that the liquid pressure inside the connecting pipe exceeds a specified value through the liquid pressure sensor, the automatic control forward and backward rotation servo motor starts working, the output shaft of the forward and backward rotation servo motor rotates to drive the worm to rotate, the worm rotates to drive the rotating shaft to rotate through meshing with the worm wheel, the rotating shaft rotates to drive the valve core to rotate inside the shell, and then the safety valve is controlled to be opened for pressure relief, so that the technical problem of inconvenience in safer automatic control of the safety valve switch is solved.
Description
Technical Field
The utility model relates to a safety valve, in particular to an automatic control wellhead safety valve, and belongs to the technical field of safety valves.
Background
The safety valve is also called a pressure relief valve, is a valve which is normally kept in a closed state and is used for opening pressure relief when the pressure exceeds a given value, plays a role in protecting equipment, controls the pressure to not exceed a specified value, plays an important role in protecting personal safety and equipment operation, can be used only by a pressure test, and is mainly widely applied to a high-pressure bypass, a pressure pipeline, a pressure container and the like of a steam boiler, a liquefied petroleum gas tank car or a liquefied petroleum gas railway tank car, a petroleum production well, steam power generation equipment.
The oil extraction wellhead safety valve with the application number of CN95221357.5 mainly comprises a valve body, a valve cover, a valve plate, a valve rod, a switch nut, a bearing seat, a lifting nut, a pushing bearing, a special tool and the like. The valve cover is connected with the upper end of the valve body through threads, the valve plate is arranged between the left and right of the valve body and the right of the valve body, the valve plate is connected with the lower part of the valve rod through the valve cover, the valve rod is sealed with the valve cover through an annular sealing ring, the middle of the lifting nut and the valve rod is connected through threads, the pushing bearing is sleeved on the lifting nut, the upper end of the valve rod is provided with a fastening nut and a switch nut, the lifting nut and the pushing bearing are arranged in a bearing seat, the bearing seat is arranged at the upper end of the valve cover, a hollow cylindrical protective cover is fixed on the valve cover, the bearing seat and the upper section of the valve rod are arranged in the protective cover, the valve rod can be lifted through special tools to drive the valve plate to open and close, the wellhead valve can prevent crude oil leakage caused by loss of noble parts such as brass lifting nuts and even cause blowout under the open-air working condition of the wellhead valve.
However, when the wellhead safety valve is used, the wellhead safety valve has a certain defect that the valve can be opened and closed only by manual operation of a worker, the safety valve cannot be automatically controlled to be opened and closed when the internal liquid pressure of the safety valve exceeds a specified value, potential safety hazards exist, and the safety valve is inconvenient to open and close by the automatic control of the safety valve.
Disclosure of utility model
The utility model aims to provide an automatic control wellhead safety valve so as to solve the problem that the automatic control of the safety valve on-off is inconvenient and safer in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an automatic control wellhead safety valve comprises a valve body assembly and an automatic opening and closing control assembly; the valve body assembly comprises a shell, a connecting pipe is communicated with the bottom end of the shell, a rotating shaft is inserted in the middle of one side of the shell in a rotating way through a sealing bearing, a valve core is sleeved at one end of the rotating shaft, and the valve core is arranged in the shell in a rotating way; the automatic opening and closing control assembly comprises a supporting block and a liquid pressure sensor, wherein the supporting block is arranged on the side of the shell, the liquid pressure sensor is arranged on one side of the inner wall of the connecting pipe, and a rotation adjusting mechanism is arranged on one side of the supporting block.
As a preferable technical scheme of the utility model, the top end of the shell is communicated with a pressure relief pipe, and the top end of the pressure relief pipe and the bottom end of the connecting pipe are respectively sleeved with a connecting mounting disc.
As a preferable technical scheme of the utility model, mounting holes are formed around each connecting mounting plate, and rubber sealing gaskets are arranged at the top end of one connecting mounting plate and the bottom end of the other connecting mounting plate.
As a preferable technical scheme of the utility model, the other side of the connecting pipe and one side of the pressure relief pipe are respectively provided with a transverse plate, and a carrying handle rod is arranged between the two transverse plates.
As a preferable technical scheme of the utility model, the rotation adjusting mechanism comprises a mounting block, wherein the mounting block is arranged on one side of the supporting block, and a forward and reverse rotation servo motor is arranged on one side of the mounting block.
As a preferable technical scheme of the utility model, the output shaft of the positive and negative rotation servo motor is connected with a worm, and the other end of the rotating shaft is sleeved with a worm wheel which is meshed with the worm.
As a preferable technical scheme of the utility model, a controller is arranged at the bottom end of the supporting block, and the forward and reverse rotation servo motor and the liquid pressure sensor are electrically connected with the controller.
Compared with the related art, the automatic control wellhead safety valve provided by the utility model has the following beneficial effects:
When the safety valve is in a closed state, the liquid pressure inside the connecting pipe is monitored through the liquid pressure sensor, when the controller knows that the liquid pressure inside the connecting pipe exceeds a specified value through the liquid pressure sensor, the automatic control forward and backward rotation servo motor starts working, the output shaft of the forward and backward rotation servo motor rotates to drive the worm to rotate, the worm rotates to drive the rotating shaft to rotate through meshing with the worm wheel, the rotating shaft rotates to drive the valve core to rotate inside the shell, and then the safety valve is controlled to be opened for pressure relief, so that the technical problem of inconvenience in safer automatic control of the safety valve switch 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 present utility model;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;
fig. 4 is an enlarged schematic view of the structure of fig. 2B according to the present utility model.
In the figure: 1. a valve body assembly; 101. a housing; 102. a connecting pipe; 103. a pressure relief tube; 104. sealing the bearing; 105. a rotating shaft; 106. a valve core; 107. connecting the mounting plate; 108. a mounting hole; 109. a rubber sealing gasket; 1010. a cross plate; 1011. carrying a handle bar; 2. an automatic opening and closing control component; 201. a support block; 202. a liquid pressure sensor; 203. a mounting block; 204. a forward and reverse rotation servo motor; 205. a worm; 206. a worm wheel; 207. and a controller.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the utility model provides an automatic control wellhead safety valve, which comprises a valve body assembly 1 and an automatic opening and closing control assembly 2;
The valve body assembly 1 comprises a shell 101, a connecting pipe 102 is fixedly communicated with the bottom end of the shell 101, a rotating shaft 105 is rotatably inserted in the middle of one side of the shell 101 through a sealing bearing 104, a valve core 106 is fixedly sleeved at one end of the rotating shaft 105, and the valve core 106 is rotatably arranged in the shell 101 so as to be convenient for controlling the opening and closing of the safety valve;
The top end of the shell 101 is fixedly communicated with a pressure relief pipe 103, and the top end of the pressure relief pipe 103 and the bottom end of the connecting pipe 102 are fixedly sleeved with a connecting mounting disc 107 so as to be fixedly communicated with an external pipeline and a wellhead respectively;
Mounting holes 108 are formed in the periphery of each connecting mounting plate 107, and rubber sealing washers 109 are fixedly arranged at the top end of one connecting mounting plate 107 and the bottom end of the other connecting mounting plate 107, so that the tightness is improved;
The other side of the connecting pipe 102 and one side of the pressure relief pipe 103 are fixedly provided with transverse plates 1010, and a carrying handle rod 1011 is fixedly arranged between the two transverse plates 1010, so that the safety valve can be conveniently carried and moved before or after being mounted or dismounted;
Specifically, the sealing bearing 104 is convenient for guarantee the tightness of the casing 101 at first, and two connection mounting plates 107 are respectively fixedly connected with an external pressure release channel and a wellhead through eight mounting holes 108, and the provided carrying handle rod 1011 is convenient for carrying and moving the safety valve before or after mounting.
The automatic opening and closing control assembly 2 comprises a supporting block 201 and a liquid pressure sensor 202, wherein the supporting block 201 is fixedly arranged on the side of the shell 101, the liquid pressure sensor 202 is fixedly arranged on one side of the inner wall of the connecting pipe 102, and a rotation adjusting mechanism is fixedly arranged on one side of the supporting block 201;
The rotation adjusting mechanism comprises an installation block 203, wherein the installation block 203 is fixedly arranged on one side of the supporting block 201, and a forward and reverse rotation servo motor 204 is fixedly arranged on one side of the installation block 203;
The output shaft of the forward and reverse rotation servo motor 204 is fixedly connected with a worm 205, and the other end of the rotating shaft 105 is fixedly sleeved with a worm wheel 206 which is meshed with the worm 205;
A controller 207 is fixedly arranged at the bottom end of the supporting block 201, and the forward and reverse rotation servo motor 204 and the liquid pressure sensor 202 are electrically connected with the controller 207;
Specifically, the liquid pressure inside the connecting pipe 102 is monitored through the liquid pressure sensor 202, when the controller 207 knows that the liquid pressure inside the connecting pipe 102 exceeds a specified value through the liquid pressure sensor 202, the forward and reverse rotation servo motor 204 is automatically controlled to start working, the output shaft of the forward and reverse rotation servo motor 204 rotates to drive the worm 205 to rotate, the worm 205 rotates to drive the rotating shaft 105 to rotate through meshing and matching with the worm wheel 206, the rotating shaft 105 rotates to drive the valve core 106 to rotate inside the shell 101, and then the safety valve is controlled to be opened for pressure relief.
When the automatic control wellhead safety valve is used, firstly, the automatic control wellhead safety valve is placed at a corresponding working position, then, whether all parts of the automatic control wellhead safety valve work normally or not is checked, the automatic control wellhead safety valve can be used after checking is completed, during the use, two connecting mounting plates 107 are fixedly connected with an external pressure relief channel and a wellhead respectively through eight mounting holes 108, the liquid pressure inside the connecting pipe 102 is monitored through a liquid pressure sensor 202, when the controller 207 knows that the liquid pressure inside the connecting pipe 102 exceeds a specified value through the liquid pressure sensor 202, the positive and negative rotation servo motor 204 can be automatically controlled to start working, the output shaft of the positive and negative rotation servo motor 204 rotates to drive the worm 205 to rotate, the worm 205 rotates to drive the rotating shaft 105 to rotate through meshing fit with the worm wheel 206, the rotating shaft 105 drives the valve core 106 to rotate inside the shell 101, and then, the safety valve is controlled to be opened for pressure relief, the technical problem that the automatic control safety valve is inconvenient to ensure that the normal automatic control of pressure relief is recovered through the liquid pressure sensor 202 after the completion, the output shaft of the positive and negative rotation servo motor 204 rotates until the valve core 106 rotates to a closed state.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An automated control wellhead safety valve, comprising
The valve body assembly (1), the valve body assembly (1) comprises a shell (101), a connecting pipe (102) is communicated with the bottom end of the shell (101), a rotating shaft (105) is rotatably inserted in the middle of one side of the shell (101) through a sealing bearing (104), a valve core (106) is sleeved at one end of the rotating shaft (105), and the valve core (106) is rotatably arranged in the shell (101);
The automatic opening and closing control assembly (2), the automatic opening and closing control assembly (2) comprises a supporting block (201) and a liquid pressure sensor (202), the supporting block (201) is arranged on the side of the shell (101), the liquid pressure sensor (202) is arranged on one side of the inner wall of the connecting pipe (102), and a rotation adjusting mechanism is arranged on one side of the supporting block (201).
2. An automated control wellhead safety valve as claimed in claim 1 wherein: the top of casing (101) communicates there is pressure release pipe (103), the top of pressure release pipe (103) and the bottom of connecting pipe (102) all overlap and are equipped with connection mounting disc (107).
3. An automated control wellhead safety valve as claimed in claim 2 wherein: mounting holes (108) are formed in the periphery of each connecting mounting plate (107), and rubber sealing gaskets (109) are arranged at the top end of one connecting mounting plate (107) and the bottom end of the other connecting mounting plate (107).
4. An automated control wellhead safety valve as claimed in claim 2 wherein: the other side of the connecting pipe (102) and one side of the pressure relief pipe (103) are respectively provided with a transverse plate (1010), and a carrying handle rod (1011) is arranged between the two transverse plates (1010).
5. An automated control wellhead safety valve as claimed in claim 1 wherein: the rotation adjusting mechanism comprises an installation block (203), the installation block (203) is arranged on one side of the supporting block (201), and a forward and reverse rotation servo motor (204) is arranged on one side of the installation block (203).
6. An automated control wellhead safety valve as claimed in claim 5 wherein: an output shaft of the forward and reverse rotation servo motor (204) is connected with a worm (205), and the other end of the rotating shaft (105) is sleeved with a worm wheel (206) which is meshed with the worm (205).
7. An automated control wellhead safety valve as claimed in claim 5 wherein: the bottom of the supporting block (201) is provided with a controller (207), and the forward and reverse rotation servo motor (204) and the liquid pressure sensor (202) are electrically connected with the controller (207).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221299131U true CN221299131U (en) | 2024-07-09 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |