CN219472077U - Automatic reversing protection device for preventing misoperation of well security system - Google Patents
Automatic reversing protection device for preventing misoperation of well security system Download PDFInfo
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- CN219472077U CN219472077U CN202320440032.8U CN202320440032U CN219472077U CN 219472077 U CN219472077 U CN 219472077U CN 202320440032 U CN202320440032 U CN 202320440032U CN 219472077 U CN219472077 U CN 219472077U
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Abstract
The utility model discloses an automatic reversing protection device for preventing misoperation of a well security system, which comprises a relay valve, a pressure gauge, a two-position three-way normally-closed electromagnetic valve, a two-position three-way normally-open electromagnetic valve, a shuttle valve and a wellhead safety valve, wherein the inlet end of the relay valve is connected with a power air source, and the outlet end of the relay valve is respectively connected with the pressure gauge, the inlet end of the two-position three-way normally-closed electromagnetic valve, the inlet end of the two-position three-way normally-open electromagnetic valve and the wellhead safety valve; one side inlet end of the shuttle valve is connected with an outlet end connected with a two-position three-way normally-closed electromagnetic valve, the other side inlet end of the shuttle valve is connected with an outlet end of the two-position three-way normally-open electromagnetic valve, and the outlet end of the shuttle valve is connected with a pressure control end of the relay valve. The utility model can flexibly control the pressure supply pressure source for the relay valve through the form of the double-electromagnetic valve shuttle valve, can ensure the pressure stability of the pressure control end of the relay valve when no electricity exists, and can not cause abnormal closing of the wellhead safety valve when unexpected power failure occurs.
Description
Technical Field
The utility model relates to the technical field of wellhead safety control, in particular to an automatic reversing protection device for preventing misoperation of a well security system.
Background
The current wellhead safety control system generally adopts a solenoid valve to cooperate with a three-way ball valve to realize the reversing of a control air source, namely when power is on, the solenoid valve is electrified to control the air source to be conducted to a relay valve through an inlet and an outlet of the solenoid valve to control the pressure air supply; when no electricity is supplied, the three-way ball valve is manually operated to supply air pressure to the pressure control end of the relay valve, and the defect is that the safety valve at the wellhead is abnormally closed when the power is accidentally cut off, so that property loss is caused.
Disclosure of Invention
In order to solve the problems, the utility model provides an automatic reversing protection device for preventing misoperation of a well security system, which can ensure that the pressure control end of a relay valve is stable in air pressure when no electricity is supplied, and can not cause abnormal closing of a wellhead safety valve when unexpected power failure occurs, so that the problems are solved.
The technical scheme adopted by the utility model is as follows:
the automatic reversing protection device comprises a relay valve, a pressure gauge, a two-position three-way normally-closed electromagnetic valve, a two-position three-way normally-open electromagnetic valve, a shuttle valve and a wellhead safety valve, wherein the inlet end of the relay valve is connected with a power air source, and the outlet end of the relay valve is respectively connected with the pressure gauge, the inlet end of the two-position three-way normally-closed electromagnetic valve, the inlet end of the two-position three-way normally-open electromagnetic valve and the wellhead safety valve; one side inlet end of the shuttle valve is connected with an outlet end connected with a two-position three-way normally-closed electromagnetic valve, the other side inlet end of the shuttle valve is connected with an outlet end of the two-position three-way normally-open electromagnetic valve, and the outlet end of the shuttle valve is connected with a pressure control end of the relay valve.
Further, the inlet end and the outlet end of the relay valve are communicated when the relay valve works, and the discharge port end is blocked; when the operation is stopped, the inlet end is blocked, and the outlet end is communicated with the discharge port end.
Further, the pressure gauge is configured to display the pressure value of the input gas in real time.
Further, the control ends of the two-position three-way normally-closed electromagnetic valve and the two-position three-way normally-open electromagnetic valve are connected with a remote control terminal and electrified.
Further, the inlet end and the outlet end of the two-position three-way normally closed electromagnetic valve are communicated when the two-position three-way normally closed electromagnetic valve is electrified, and the discharge port end is blocked; when the power is lost, the inlet end is blocked, the outlet end is communicated with the discharge port end, and the outlet end is connected with the inlet end at one side of the shuttle valve.
Further, the inlet end of the two-position three-way normally open electromagnetic valve is blocked when the two-position three-way normally open electromagnetic valve is electrified, and the outlet end of the two-position three-way normally open electromagnetic valve is communicated with the discharge port end; when the power is lost, the inlet end is communicated with the outlet end, the discharge port end is blocked, and the outlet end is connected with the inlet end of the other side of the shuttle valve.
Further, when the air is introduced into the inlet end of one side of the shuttle valve, the internal piston moves to the opposite side, and the inlet end of the side is communicated with the outlet end; when the air is introduced into the inlet end of the other side, the inner piston moves to the opposite side, and the inlet end of the opposite side is communicated with the outlet end.
Further, the wellhead safety valve is configured to intercept process line fluid.
The utility model has the beneficial effects that:
the utility model can flexibly control the pressure supply pressure source for the relay valve through the form of the double-electromagnetic valve shuttle valve, can ensure the pressure stability of the pressure control end of the relay valve when no electricity exists, and can not cause abnormal closing of the wellhead safety valve when unexpected power failure occurs. The utility model realizes the change of the electromagnetic valve passage under the condition of unexpected power failure in the field, promotes the reversing of the air inlet of the shuttle valve to ensure the control pressure of the relay valve to be stable, and prevents the misoperation of the relay valve from causing the closing of the wellhead safety valve.
Drawings
Fig. 1 is a schematic diagram of an automatic commutation protection according to an embodiment of the present utility model.
Reference numerals: 1-relay valve, 2-pressure gauge, 3-two-position three-way normally closed electromagnetic valve, 4-two-position three-way normally open electromagnetic valve, 5-shuttle valve and 6-wellhead safety valve.
Detailed Description
Specific embodiments of the present utility model will now be described in order to provide a clearer understanding of the technical features, objects and effects of the present utility model. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
As shown in fig. 1, the embodiment provides an automatic reversing protection device for preventing malfunction of a well security system, which comprises a relay valve 1, a pressure gauge 2, a two-position three-way normally-closed electromagnetic valve 3, a two-position three-way normally-open electromagnetic valve 4, a shuttle valve 5 and a wellhead safety valve 6, wherein the inlet end of the relay valve 1 is connected with a power air source, and the outlet end is respectively connected with the pressure gauge 2, the inlet end of the two-position three-way normally-closed electromagnetic valve 3, the inlet end of the two-position three-way normally-open electromagnetic valve 4 and the wellhead safety valve 6; the inlet end of one side of the shuttle valve 5 is connected with the outlet end connected with the two-position three-way normally-closed electromagnetic valve 3, the inlet end of the other side is connected with the outlet end of the two-position three-way normally-open electromagnetic valve 4, and the outlet end of the shuttle valve 5 is connected with the pressure control end of the relay valve 1, which is specifically described as follows.
The relay valve 1 is used for switching on and switching off a power air source, and the inlet end and the outlet end of the relay valve are communicated when the relay valve works, and the discharge port end is blocked; when the operation is stopped, the inlet end is blocked, and the outlet end is communicated with the discharge port end.
The pressure gauge 2 is configured to display the pressure value of the input gas in real time, i.e., to display the pressure at the outlet end of the relay valve 1.
The control ends of the two-position three-way normally-closed electromagnetic valve 3 and the two-position three-way normally-open electromagnetic valve 4 are connected with a remote control terminal and electrified, wherein:
the inlet end and the outlet end of the two-position three-way normally closed electromagnetic valve 3 are communicated when the power is on, and the discharge port end is blocked; when the power is lost, the inlet end is blocked, the outlet end is communicated with the discharge port end, and the outlet end is connected with the inlet end on one side of the shuttle valve 5.
The two-position three-way normally open electromagnetic valve 4 is blocked at the inlet end when being electrified, and the outlet end is communicated with the discharge port end; when the power is lost, the inlet end is communicated with the outlet end, the discharge port end is blocked, and the outlet end is connected with the inlet end of the other side of the shuttle valve 5.
The shuttle valve 5 works in a mode of alternative mode, when the air is introduced into the inlet end of one side, the internal piston moves to the other section, and the inlet end is communicated with the outlet end; similarly, when the inlet end of the other side is filled with gas, the working principle is the same, and the reversing ventilation of the two ends of the shuttle valve 5 can be realized.
The wellhead safety valve 6 is configured to shut-off process line fluid (e.g., natural gas).
Based on the above structure, when the automatic reversing protection device of the embodiment is operated, the well An Jitong is opened, and the two-position three-way normally-closed electromagnetic valve 3 and the two-position three-way normally-open electromagnetic valve 4 are connected with a remote control terminal and electrified. The power air source reaches the pressure gauge 2 through the inlet end and the outlet end of the relay valve 1, and reaches the inlet end of the two-position three-way normally-closed electromagnetic valve 3, the inlet end of the two-position three-way normally-open electromagnetic valve 4 and the wellhead safety valve 6. At this time, in the energized state, the two-position three-way normally closed electromagnetic valve 3 is connected with the inlet end and the outlet end thereof, the outlet end is connected with the corresponding inlet end of the shuttle valve 5, and the outlet end of the shuttle valve 5 is connected with the pressure control end of the relay valve 1; meanwhile, the inlet end of the two-position three-way normally open electromagnetic valve 4 is blocked in the electrified state; when the system is abnormally powered off, the inlet end of the two-position three-way normally-closed electromagnetic valve 3 is blocked, the outlet end is communicated with the discharge port end, and the air source in the shuttle valve 5 connected with the outlet end is decompressed through the discharge port end of the two-position three-way normally-closed electromagnetic valve 3; meanwhile, in the power failure state, the inlet end and the outlet end of the two-position three-way normally open electromagnetic valve 4 are communicated, the outlet end is connected with the corresponding inlet end of the shuttle valve 5, the outlet end of the shuttle valve 5 is connected with the pressure control end of the relay valve 1, and the pressure stabilization of the pressure control end of the relay valve 1 is ensured.
The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.
Claims (8)
1. The automatic reversing protection device for preventing misoperation of the well security system is characterized by comprising a relay valve (1), a pressure gauge (2), a two-position three-way normally-closed electromagnetic valve (3), a two-position three-way normally-open electromagnetic valve (4), a shuttle valve (5) and a wellhead safety valve (6), wherein the inlet end of the relay valve (1) is connected with a power air source, and the outlet end is respectively connected with the pressure gauge (2), the inlet end of the two-position three-way normally-closed electromagnetic valve (3), the inlet end of the two-position three-way normally-open electromagnetic valve (4) and the wellhead safety valve (6); one side inlet end of the shuttle valve (5) is connected with an outlet end connected with the two-position three-way normally-closed electromagnetic valve (3), the other side inlet end is connected with an outlet end of the two-position three-way normally-open electromagnetic valve (4), and the outlet end of the shuttle valve (5) is connected with a pressure control end of the relay valve (1).
2. The automatic reversing protection device for preventing misoperation of a well security system according to claim 1 is characterized in that the inlet end and the outlet end of the relay valve (1) are communicated when the relay valve works, and the discharge port end is blocked; when the operation is stopped, the inlet end is blocked, and the outlet end is communicated with the discharge port end.
3. The automatic reverse protection device for a well security system against malfunction according to claim 1, wherein the pressure gauge (2) is configured to display the pressure value of the input gas in real time.
4. The automatic reversing protection device for preventing misoperation of a well security system according to claim 1 is characterized in that control ends of the two-position three-way normally-closed electromagnetic valve (3) and the two-position three-way normally-open electromagnetic valve (4) are connected with a remote control terminal and electrified.
5. The automatic reversing protection device for preventing misoperation of a well security system according to claim 1 is characterized in that the inlet end and the outlet end of the two-position three-way normally closed electromagnetic valve (3) are communicated when the well security system is electrified, and the discharge port end is blocked; when the power is lost, the inlet end is blocked, the outlet end is communicated with the discharge port end, and the outlet end is connected with the inlet end at one side of the shuttle valve (5).
6. The automatic reversing protection device for preventing misoperation of a well security system according to claim 1 is characterized in that an inlet end of the two-position three-way normally open electromagnetic valve (4) is blocked when the well security system is electrified, and an outlet end of the two-position three-way normally open electromagnetic valve is communicated with a discharge port end; when the power is lost, the inlet end is communicated with the outlet end, the discharge port end is blocked, and the outlet end is connected with the inlet end of the other side of the shuttle valve (5).
7. The automatic reversing protection device for preventing malfunction of a well security system according to any one of claims 1 to 6, wherein the shuttle valve (5) has an inner piston moving to the opposite side when the gas is introduced into the inlet end of one side, and the inlet end of the side is communicated with the outlet end; when the air is introduced into the inlet end of the other side, the inner piston moves to the opposite side, and the inlet end of the opposite side is communicated with the outlet end.
8. An automatic reverse protection device for a well security system against malfunction according to any of claims 1-6, characterized in that the wellhead safety valve (6) is configured to intercept process line fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320440032.8U CN219472077U (en) | 2023-03-09 | 2023-03-09 | Automatic reversing protection device for preventing misoperation of well security system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320440032.8U CN219472077U (en) | 2023-03-09 | 2023-03-09 | Automatic reversing protection device for preventing misoperation of well security system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219472077U true CN219472077U (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320440032.8U Active CN219472077U (en) | 2023-03-09 | 2023-03-09 | Automatic reversing protection device for preventing misoperation of well security system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219472077U (en) |
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2023
- 2023-03-09 CN CN202320440032.8U patent/CN219472077U/en active Active
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