CN219328003U - Integrated sledge combination of nitrogen gas supply well safety system - Google Patents
Integrated sledge combination of nitrogen gas supply well safety system Download PDFInfo
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- CN219328003U CN219328003U CN202320586337.XU CN202320586337U CN219328003U CN 219328003 U CN219328003 U CN 219328003U CN 202320586337 U CN202320586337 U CN 202320586337U CN 219328003 U CN219328003 U CN 219328003U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses an integrated sledge combination of a nitrogen gas supply well safety system, which belongs to the field of gas well safety and comprises the following components: the nitrogen gas supply system and the wellhead safety control system; the wellhead safety control system includes: the pneumatic safety valve is arranged at the upstream of the pressure taking pipeline; the nitrogen output by the nitrogen supply system is divided into two paths through the relay valve, and one path of the nitrogen is conveyed to the pneumatic safety valve to provide a power air source for the pneumatic safety valve; one path is connected into the safety system and forms a loop with the relay valve; the utility model can be widely popularized and applied, and can conveniently and effectively control the natural gas wellhead valve.
Description
Technical Field
The utility model relates to the field of gas well safety, in particular to an integrated sledge combination of a nitrogen gas supply well safety system.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
In the prior natural gas wellhead safety system, an independent power air source is not designed for a safety valve, but is directly opened and closed by manpower, and when the safety valve is in a narrow space, too high or too low in position, the safety valve is inconvenient to a certain extent in opening and closing operation; meanwhile, most natural gas wellhead safety systems are not provided with monitoring systems so as to prevent sudden situations such as overlarge pressure or overlarge pressure in the pressure taking pipeline and damage to process pipelines and downstream equipment where the pressure taking pipeline is located, and potential safety hazards exist to a certain extent.
Disclosure of Invention
The utility model aims at: aiming at the problems existing in the prior art, the integrated sledge combination of the nitrogen gas supply well safety system is provided, a pneumatic safety valve is adopted, meanwhile, nitrogen is used as a power air source of the pneumatic safety valve, an automatic protection system is added into a natural gas wellhead safety system, and when the emergency such as overlarge or undersize pressure in a pressure taking pipeline occurs, the pneumatic safety valve is automatically closed in time, so that the safety performance is improved, and the problems are solved.
The technical scheme of the utility model is as follows:
a nitrogen gas supplies the integrative sledge combination of the gas well installation system, include specifically:
the nitrogen gas supply system and the wellhead safety control system; preferably, the nitrogen gas supply system can be a nitrogen gas cylinder or other independent gas supply systems;
the wellhead safety control system includes:
a pneumatic safety valve installed upstream of the pressure-taking line;
the nitrogen output by the nitrogen supply system is divided into two paths through the relay valve, and one path of the nitrogen is conveyed to the pneumatic safety valve to provide a power air source for the pneumatic safety valve; one path is connected into the safety system and forms a loop with the relay valve; the pneumatic safety valve can be opened by the nitrogen output by the nitrogen supply system, and the pneumatic safety valve can be closed by switching off the nitrogen; the automatic closing of the relay valve, namely the stopping of the conveying of the nitrogen, can be realized through the safety system, so that the pneumatic safety valve is closed; the relay valve may be opened manually at the time of initial use.
Further, the output end of the nitrogen gas supply system is communicated with the input end of the relay valve, and the output end of the relay valve is connected with two branches, namely a first branch and a second branch;
the first branch is communicated with the pneumatic safety valve, the second branch is communicated with the back pressure end of the relay valve to form a loop, and the safety system is connected into the second branch; that is, the nitrogen in the second branch can be released through the safety system, so that the relay valve is closed.
Further, the safety system comprises:
the induction end of the pressure pilot valve is communicated with the pressure taking pipeline, and the pressure pilot valve is connected in series into the branch II based on the two connecting ends of the pressure pilot valve.
Further, the pressure pilot valve includes: the high-pressure pilot valve and the low-pressure pilot valve are sequentially connected in series into a branch II through a connecting end; the pressure taking pipeline is divided into two paths through a pressure taking valve, one path is connected with the induction end of the high-pressure pilot valve, and the other path is connected with the induction end of the low-pressure pilot valve; the high-pressure pilot valve and the low-pressure pilot valve monitor the pressure at the same position on the pressure taking pipeline; and when the monitored pressure is higher than the preset value of the high-pressure pilot valve, discharging the valve through the exhaust port of the high-pressure pilot valve, and when the monitored pressure is lower than the preset value of the low-pressure pilot valve, discharging the valve through the exhaust port of the low-pressure pilot valve, so as to close the relay valve.
Further, an electromagnetic valve is arranged on the second branch and between the low-pressure pilot valve and the relay valve; that is, in use, the relay valve can be closed by remotely controlling the solenoid valve to discharge nitrogen.
Further, a low-pressure regulating valve is arranged on the second branch and between the high-pressure pilot valve and the relay valve; the pressure in the second branch can be regulated through the low-pressure regulating valve, so that the relay valve can be kept in an open state.
Further, a branch third is arranged on the second branch and between the low-pressure regulating valve and the high-pressure pilot valve, and a fire protection system is arranged on the branch third; namely, the fire protection system can realize that nitrogen is discharged when a fire happens, and the relay valve is closed.
Further, the fire protection system is a fusible plug, namely, the branch III is plugged by the fusible plug, and when a fire disaster occurs, the fusible plug can realize the discharge of nitrogen after melting, so that the relay valve is closed.
Compared with the prior art, the utility model has the beneficial effects that:
1. a nitrogen gas supply well installation system integrated skid combination, comprising: the nitrogen gas supply system and the wellhead safety control system; the wellhead safety control system includes: a pneumatic safety valve installed upstream of the pressure-taking line; the nitrogen output by the nitrogen supply system is divided into two paths through the relay valve, and one path of the nitrogen is conveyed to the pneumatic safety valve to provide a power air source for the pneumatic safety valve; one path is connected into the safety system and forms a loop with the relay valve; the pneumatic wellhead safety control system can provide self power gas source energy storage, ensure the safe and reliable operation of the pneumatic wellhead safety control system, and effectively ensure the safe operation of natural gas wellhead equipment in remote areas or without a clean power gas source.
2. The integrated sledge combination of the nitrogen gas supply well safety system can realize the manual opening and closing of a natural gas wellhead pneumatic safety valve; the automatic closing of the pneumatic safety valve can also be realized when the pressure in the pressure taking pipeline is abnormal.
3. The integrated sledge combination of the nitrogen gas supply well installation system can also realize the automatic closing of the pneumatic safety valve when the fusible plug is melted and the remote closing of the pneumatic safety valve through the electromagnetic valve.
Drawings
FIG. 1 is a schematic illustration of an integrated skid assembly for a nitrogen gas supply well system.
Reference numerals: 1-pneumatic safety valve, 2-relay valve, 3-high pressure pilot valve, 4-low pressure pilot valve, 5-solenoid valve, 6-low pressure regulating valve, 7-fusible plug and 8-pressure taking valve.
Detailed Description
It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The features and capabilities of the present utility model are described in further detail below in connection with examples.
Example 1
Referring to fig. 1, an integrated skid assembly for a nitrogen gas supply well system specifically includes: the nitrogen gas supply system and the wellhead safety control system; preferably, the nitrogen gas supply system may be a nitrogen gas cylinder, or may be other independent gas supply systems, which is not limited in this embodiment;
the wellhead safety control system includes:
a pneumatic safety valve 1, the pneumatic safety valve 1 being installed upstream of the pressure-taking line;
the nitrogen output by the nitrogen supply system is divided into two paths through the relay valve 2, and one path is conveyed to the pneumatic safety valve 1 to provide a power air source for the pneumatic safety valve 1; one path is connected into a safety system and forms a loop with the relay valve 2; the pneumatic safety valve 1 can be opened by the nitrogen output by the nitrogen supply system, and the pneumatic safety valve 1 can be closed by switching off the nitrogen; the automatic closing of the relay valve 2, namely the stopping of the conveying of the nitrogen, can be realized through the safety system, so that the pneumatic safety valve 1 is closed; the relay valve 2 may be opened manually at the time of initial use.
In this embodiment, specifically, the output end of the nitrogen gas supply system is communicated with the input end of the relay valve 2, and the output end of the relay valve 2 is connected with two branches, namely a branch one and a branch two;
the first branch is communicated with the pneumatic safety valve 1, the second branch is communicated with the back pressure end of the relay valve 2 to form a loop, and the safety system is connected into the second branch; i.e. the nitrogen in branch two can be released by means of the safety system, so that the relay valve 2 is closed.
In this embodiment, specifically, the security system includes:
the induction end of the pressure pilot valve is communicated with the pressure taking pipeline, and the pressure pilot valve is connected in series into the branch II based on the two connecting ends of the pressure pilot valve.
In this embodiment, specifically, the pressure pilot valve includes: the high-pressure pilot valve 3 and the low-pressure pilot valve 4 are sequentially connected in series into a branch II through a connecting end; the pressure taking pipeline is divided into two paths through a pressure taking valve 8, one path is connected with the sensing end of the high-pressure pilot valve 3, and the other path is connected with the sensing end of the low-pressure pilot valve 4; namely, the high-pressure pilot valve 3 and the low-pressure pilot valve 4 monitor the pressure at the same position on the pressure taking pipeline; when the monitored pressure is greater than the preset value of the high pressure pilot valve 3, venting is through the vent port of the high pressure pilot valve 3, and when the monitored pressure is lower than the preset value of the low pressure pilot valve 4, venting is through the vent port of the low pressure pilot valve 4, thereby closing the relay valve 2.
In this embodiment, specifically, an electromagnetic valve 5 is disposed between the low pressure pilot valve 4 and the relay valve 2 on the second branch; that is, in use, the relay valve 2 can be closed by discharging nitrogen gas by controlling the solenoid valve 5 remotely.
In this embodiment, specifically, a low pressure regulating valve 6 is disposed between the high pressure pilot valve 3 and the relay valve 2 on the second branch; i.e. the pressure in branch two can be regulated by means of said low-pressure regulating valve 6 to ensure that the relay valve 2 can be kept in an open state.
In this embodiment, specifically, a third branch is further disposed between the low pressure regulating valve 6 and the high pressure pilot valve 3 on the second branch, and a fire protection system is disposed on the third branch; namely, by the fire protection system, when a fire occurs, nitrogen is discharged, and the relay valve 2 is closed.
In this embodiment, specifically, the fire protection system is a fusible plug 7, that is, the branch three is plugged by using the fusible plug 7, and when a fire occurs, the fusible plug 7 melts to realize the discharge of nitrogen, so as to close the relay valve 2.
Namely, the nitrogen gas supply well safety system integrated sledge combination provided by the embodiment can realize the manual opening and closing of the natural gas wellhead pneumatic safety valve 1; the pneumatic safety valve 1 can be automatically closed when the pressure in the pressure taking pipeline is abnormal; meanwhile, the pneumatic safety valve 1 can be automatically closed when the fusible plug 7 is melted; the pneumatic safety valve 1 can also be remotely closed by means of the solenoid valve 5.
The foregoing examples merely represent specific embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present application, which fall within the protection scope of the present application.
This background section is provided to generally present the context of the present utility model and the work of the presently named inventors, to the extent it is described in this background section, as well as the description of the present section as not otherwise qualify as prior art at the time of filing, are neither expressly nor impliedly admitted as prior art against the present utility model.
Claims (8)
1. A nitrogen gas supply well safety system integrated skid combination, comprising: the nitrogen gas supply system and the wellhead safety control system;
the wellhead safety control system includes:
a pneumatic safety valve (1), the pneumatic safety valve (1) being installed upstream of the pressure take-off line;
the nitrogen output by the nitrogen supply system is divided into two paths through the relay valve (2), and one path of nitrogen is conveyed to the pneumatic safety valve (1) to provide a power air source for the pneumatic safety valve (1); one path is connected into the safety system and forms a loop with the relay valve (2).
2. The integrated skid combination of the nitrogen gas supply well installation system according to claim 1, wherein the output end of the nitrogen gas supply system is communicated with the input end of a relay valve (2), and the output end of the relay valve (2) is connected with two branches, namely a first branch and a second branch;
the first branch is communicated with the pneumatic safety valve (1), the second branch is communicated with the back pressure end of the relay valve (2) to form a loop, and the safety system is connected into the second branch.
3. The nitrogen gas supply well safety system integrated skid combination of claim 2, wherein said safety system comprises:
the induction end of the pressure pilot valve is communicated with the pressure taking pipeline, and the pressure pilot valve is connected in series into the branch II based on the two connecting ends of the pressure pilot valve.
4. A nitrogen gas supply well installation system integrated skid combination according to claim 3, wherein said pressure pilot valve comprises: the high-pressure pilot valve (3) and the low-pressure pilot valve (4) are sequentially connected in series into a branch II through a connecting end; the pressure taking pipeline is divided into two paths through a pressure taking valve (8), one path is connected with the sensing end of the high-pressure pilot valve (3), and the other path is connected with the sensing end of the low-pressure pilot valve (4).
5. The nitrogen gas supply well installation system integrated skid combination according to claim 4, wherein a solenoid valve (5) is arranged on the second branch and between the low-pressure pilot valve (4) and the relay valve (2).
6. The nitrogen gas supply well installation system integrated skid combination according to claim 4, wherein a low-pressure regulating valve (6) is arranged on the second branch and between the high-pressure pilot valve (3) and the relay valve (2).
7. The nitrogen gas supply well safety system integrated sledge combination according to claim 6, wherein a third branch is arranged on the second branch and between the low-pressure regulating valve (6) and the high-pressure pilot valve (3), and a fire protection system is arranged on the third branch.
8. The nitrogen gas supply well installation system integrated skid combination of claim 7, wherein said fire protection system is a fusible plug (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320586337.XU CN219328003U (en) | 2023-03-23 | 2023-03-23 | Integrated sledge combination of nitrogen gas supply well safety system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320586337.XU CN219328003U (en) | 2023-03-23 | 2023-03-23 | Integrated sledge combination of nitrogen gas supply well safety system |
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| Publication Number | Publication Date |
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| CN219328003U true CN219328003U (en) | 2023-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320586337.XU Active CN219328003U (en) | 2023-03-23 | 2023-03-23 | Integrated sledge combination of nitrogen gas supply well safety system |
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| CN (1) | CN219328003U (en) |
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2023
- 2023-03-23 CN CN202320586337.XU patent/CN219328003U/en active Active
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