CN116480314A - Fusible safety valve driver opening and retaining device - Google Patents
Fusible safety valve driver opening and retaining device Download PDFInfo
- Publication number
- CN116480314A CN116480314A CN202310510475.4A CN202310510475A CN116480314A CN 116480314 A CN116480314 A CN 116480314A CN 202310510475 A CN202310510475 A CN 202310510475A CN 116480314 A CN116480314 A CN 116480314A
- Authority
- CN
- China
- Prior art keywords
- safety valve
- driver
- valve driver
- holding device
- opening
- 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.)
- Pending
Links
- 239000012943 hotmelt Substances 0.000 claims abstract description 23
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 210000001503 joint Anatomy 0.000 claims description 16
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 8
- 206010000369 Accident Diseases 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a fusible type safety valve driver opening and holding device, which comprises a holder body, wherein the bottom of the holder body is provided with a mounting cavity, a hot melt element is arranged in the mounting cavity, the holder body is fixed with a shell of a safety valve driver assembly through a positioning mechanism, and the hot melt element is used for abutting against a driver indication rod in the safety valve driver assembly to downwards press the driver indication rod; the retainer body is provided with an adjusting mechanism for adjusting the pressing down of the hot melt element; the invention is used for ensuring that the safety valve driver component always keeps a completely opened state during normal use; when the temperature of the safety valve driver component rises to reach a set value due to unexpected fire disaster in the well site, the safety valve and the driver can be automatically closed, and the automatic well closing is realized. The invention has no control medium, can not cause the discharge of the medium under the condition of fire, and is cleaner and safer.
Description
Technical Field
The invention relates to the technical field related to oil/gas production wellhead devices, in particular to an opening and retaining device of a fusible safety valve driver.
Background
In oil/gas wellhead assemblies and trees, a safety valve is typically provided before the main diameter main valve and the flanking production valves and remains fully open. Generally, the safety valve and the driver thereof are mostly configured with a set of corresponding hydraulic/pneumatic or electric control system to realize the on-off control of the safety valve, so that the configuration cost of the whole safety valve and the control system equipment is high; in addition, the safety accident caused by the fire disaster of the well site happens sometimes, when the fire disaster happens, the control medium in the safety valve driver control system is released, the aim of closing the well is achieved, and the released medium is directly discharged back to the well site, so that the fire condition can be assisted, and the environment is polluted.
Disclosure of Invention
In order to solve the problems that in the prior art, a safety valve and a driver thereof are mostly provided with a set of corresponding hydraulic/pneumatic or electric control system to realize the switching control of the safety valve, so that the configuration cost of the whole safety valve and control system equipment is high. In addition, the safety accident caused by the fire disaster of the well site happens at the time of the safety accident, the control medium in the safety valve driver control system is released when the fire disaster happens, the aim of closing the well is achieved, and the released medium is directly discharged back to the well site, so that the fire condition can be assisted, and the defect of environmental pollution is overcome.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a fusible type safety valve driver opening and holding device, which comprises a holder body, wherein the bottom of the holder body is provided with a mounting cavity, a hot melt element is arranged in the mounting cavity, the holder body is fixed with a shell of a safety valve driver assembly through a positioning mechanism, and the hot melt element is used for abutting against a driver indication rod in the safety valve driver assembly to downwards press the driver indication rod; the retainer body is provided with an adjusting mechanism for adjusting the pressing down of the hot melt element.
As a preferable technical scheme of the invention, the adjusting mechanism comprises a threaded hole which is arranged on the holder body and is communicated with the mounting cavity, a threaded column which downwards presses the hot melt element is screwed into the threaded hole, and a manually-rotated rotating block is arranged at the outer end part of the threaded column.
As a preferable technical scheme of the invention, the bottom of the retainer body is provided with the connecting pipe, the port of the connecting pipe wraps the installation cavity, the safety valve driver component is provided with the butt joint pipe which is in butt joint with the connecting pipe, and the connecting pipe is in threaded connection with the butt joint pipe.
As a preferable technical scheme of the invention, the connecting pipe and the butt joint pipe are fixed through locking bolts.
As a preferable technical scheme of the invention, the hot-melt element is pointed out by low-melting-point alloy or thermoplastic nonmetallic material, and the melting point temperature is 82-200 ℃.
As a preferable technical scheme of the invention, the retainer body is provided with an outflow hole for the hot-melt element to flow out after hot-melt.
As a preferred embodiment of the present invention, the hot melt element presses down the actuator indicator stem in the safety valve actuator assembly, so that the safety valve actuator assembly is always maintained in a fully open state.
The beneficial effects of the invention are as follows:
1. the fusible type safety valve driver opening and maintaining device is used for ensuring that the safety valve driver component keeps a completely opened state all the time in normal use; when the temperature of the safety valve driver component rises to reach a set value due to unexpected fire disaster in the well site, the safety valve and the driver can be automatically closed, and the automatic well closing is realized. The invention has no control medium, can not cause the discharge of the medium under the condition of fire, and is cleaner and safer. The invention has the adjusting function, and the distance between the screw thread column and the safety valve driver component is adjusted by rotating the screw thread column so as to adapt to different exposed heights of driver indication rods with different specifications.
2. The working method of the opening and holding device in the fusible type safety valve driver opening and holding device comprises the steps of connecting a connecting pipe with a butt joint pipe in a threaded mode, locking the connecting pipe and the butt joint pipe through a locking bolt, and then driving a hot melting element to press down through rotating a threaded column to press down a driver indication rod in a safety valve driver assembly, so that the safety valve driver assembly is kept in a completely opened state all the time; when a fire accident happens to the well site, the hot melting element starts to melt along with the rise of the ambient temperature, so that the collision effect on the driver indication rod is relieved, the driver indication rod bounces outwards, and the automatic closing of the safety valve driver assembly is realized.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic view of a fusible type safety valve actuator opening holding device of the present invention;
FIG. 2 is a schematic view of a part of the structure of an opening and holding device of a fusible type safety valve driver according to the present invention;
FIG. 3 is a schematic view of the structure of a threaded post of a fusible type safety valve actuator opening holding device of the present invention;
fig. 4 is a schematic view of the structure of the installation cavity 2 of the opening and holding device of the fusible type safety valve driver of the present invention.
In the figure: 1. a holder body; 2. a mounting cavity; 3. a hot melt element; 4. a safety valve actuator assembly; 5. a driver indication lever; 6. a threaded hole; 7. a threaded column; 8. a connecting pipe; 9. a butt joint pipe; 10. a locking bolt; 11. and rotating the block.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Examples: as shown in fig. 1, 2, 3 and 4, the fusible type safety valve driver opening and holding device of the present invention comprises a holder body 1, wherein a mounting cavity 2 is arranged at the bottom of the holder body 1, a hot melt element 3 is arranged in the mounting cavity 2, the holder body 1 is fixed with a shell of a safety valve driver assembly 4 through a positioning mechanism, and the hot melt element 3 interferes with a driver indication rod 5 in the safety valve driver assembly 4 to press the driver indication rod 5 downwards; the holder body 1 is provided with an adjusting mechanism for adjusting the pressing down of the heat-fusible element 3. For ensuring that the safety valve actuator assembly 4 remains fully open at all times during normal use; when the temperature of the safety valve driver component 4 rises to reach a set value due to unexpected fire disaster at the well site, the safety valve and the driver can be automatically closed, and the automatic well closing is realized. The invention has no control medium, can not cause the discharge of the medium under the condition of fire, and is cleaner and safer.
Wherein, adjustment mechanism is including setting up on the holder body 1 and with the screw hole 6 of installation cavity 2 intercommunication, just screw hole 6 internal thread is screwed in has the screw thread post 7 to the hot melt component 3 push down, just the outer tip of screw thread post 7 is equipped with manual pivoted turning block 11. The invention has the adjusting function, and the distance between the screw thread post 7 and the safety valve driver assembly 4 is adjusted by rotating the screw thread post to adapt to different exposed heights of driver indication rods 5 with different specifications.
The bottom of the retainer body 1 is provided with a connecting pipe 8, the port of the connecting pipe 8 wraps the installation cavity 2, the safety valve driver assembly 4 is provided with a butt joint pipe 9 which is in butt joint with the connecting pipe 8, and the connecting pipe 8 is in threaded connection with the butt joint pipe 9. Facilitating interfacing of the retainer body 1 with the safety valve actuator assembly 4.
Wherein the connecting pipe 8 and the butt joint pipe 9 are fixed through a locking bolt 10.
Wherein the hot melt element 3 is pointed out by a low melting point alloy or a thermoplastic nonmetallic material, and the melting point temperature is 82-200 ℃. When a fire accident happens to the well site, the hot melting element starts to melt along with the rise of the ambient temperature, so that the collision effect on the driver indication rod is relieved, the driver indication rod bounces outwards, and the automatic closing of the safety valve driver assembly is realized.
Wherein, the retainer body 1 is provided with an outflow hole through which the heat-melting element 3 flows out after being melted.
Wherein the hot melt element 3 presses down the actuator indicator stem 5 within the safety valve actuator assembly 4 such that the safety valve actuator assembly 4 remains fully open at all times.
The working method of the opening and holding device is that the connecting pipe is in threaded connection with the butt joint pipe, the connecting pipe and the butt joint pipe are locked through the locking bolt, then the threaded column is rotated to drive the hot melting element to press down, so that the driver indication rod in the safety valve driver component is pressed down, and the safety valve driver component is kept in a completely opened state all the time; when a fire accident happens to the well site, the hot melting element starts to melt along with the rise of the ambient temperature, so that the collision effect on the driver indication rod is relieved, the driver indication rod bounces outwards, and the automatic closing of the safety valve driver assembly is realized.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The fusible type safety valve driver opening and holding device is characterized by comprising a holder body (1), wherein an installation cavity (2) is arranged at the bottom of the holder body (1), a hot melting element (3) is arranged in the installation cavity (2), the holder body (1) is fixed with a shell of a safety valve driver assembly (4) through a positioning mechanism, and the hot melting element (3) is used for abutting against a driver indication rod (5) in the safety valve driver assembly (4) to downwards press the driver indication rod (5); the retainer body (1) is provided with an adjusting mechanism for adjusting the pressing down of the hot melt element (3).
2. A fusible type safety valve driver opening holding device according to claim 1, characterized in that the adjustment mechanism comprises a threaded hole (6) provided on the holder body (1) and communicating with the installation cavity (2), and the threaded hole (6) is internally threaded with a threaded post (7) which presses down the hot melt element (3), and the outer end of the threaded post (7) is provided with a manually turned turning block (11).
3. The fusible type safety valve driver opening and holding device according to claim 1, wherein the bottom of the retainer body (1) is provided with a connecting pipe (8), a port of the connecting pipe (8) wraps the installation cavity (2), a butt joint pipe (9) which is in butt joint with the connecting pipe (8) is arranged on the safety valve driver assembly (4), and the connecting pipe (8) is in threaded connection with the butt joint pipe (9).
4. A fusible safety valve actuator opening holding device according to claim 3, characterized in that the connecting tube (8) and the docking tube (9) are secured by means of locking bolts (10).
5. A fusible safety valve actuator opening holding device according to claim 1, characterized in that the hot melt element (3) is pointed out by a low melting point alloy or thermoplastic nonmetallic material and the melting point temperature is 82-200 ℃.
6. The fusible relief valve actuator opening and holding device according to claim 1, characterized in that the holder body (1) is provided with an outflow opening for the hot-melt element (3) to flow out after hot-melt.
7. A fusible relief valve actuator opening holding device according to claim 5, characterized in that the hot melt element (3) presses down the actuator indicator lever (5) in the relief valve actuator assembly (4) such that the relief valve actuator assembly (4) remains fully open at all times.
8. The fusible type safety valve driver opening and holding device according to any one of claims 1 to 7, wherein the opening and holding device is operated by screwing the connection pipe with the docking pipe, locking the connection pipe and the docking pipe by the locking bolt, and then pressing down the driver indication rod in the safety valve driver assembly by rotating the screw column, so that the safety valve driver assembly is always kept in a completely opened state; when a fire accident happens to the well site, the hot melting element starts to melt along with the rise of the ambient temperature, so that the collision effect on the driver indication rod is relieved, the driver indication rod bounces outwards, and the automatic closing of the safety valve driver assembly is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310510475.4A CN116480314A (en) | 2023-05-08 | 2023-05-08 | Fusible safety valve driver opening and retaining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310510475.4A CN116480314A (en) | 2023-05-08 | 2023-05-08 | Fusible safety valve driver opening and retaining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116480314A true CN116480314A (en) | 2023-07-25 |
Family
ID=87213737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310510475.4A Pending CN116480314A (en) | 2023-05-08 | 2023-05-08 | Fusible safety valve driver opening and retaining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116480314A (en) |
-
2023
- 2023-05-08 CN CN202310510475.4A patent/CN116480314A/en active Pending
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