CN113217824A - Sulfur-containing natural gas pipeline leakage detection device and method based on parallel pipeline continuous sampling analysis - Google Patents
Sulfur-containing natural gas pipeline leakage detection device and method based on parallel pipeline continuous sampling analysis Download PDFInfo
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- CN113217824A CN113217824A CN202110426391.3A CN202110426391A CN113217824A CN 113217824 A CN113217824 A CN 113217824A CN 202110426391 A CN202110426391 A CN 202110426391A CN 113217824 A CN113217824 A CN 113217824A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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Abstract
The invention relates to the field of oil-gas safety engineering, in particular to a sulfur-containing natural gas pipeline leakage detection device and method for continuous sampling analysis. And the method can also be used for detecting and positioning leakage of other medium pipelines. The detector comprises a detector operation pipeline system and a detector, wherein the detector operation pipeline system comprises a quick-opening blind plate, a pressure gauge, an air release valve, a ball sending valve, an indicator, a ball receiving valve, an air release valve, a detector operation pipeline, an electronic positioner and a detection information receiver, and the detector comprises a roller, a front wheel support, a spring, a battery barrel, a rear end cover, a front end cover, a sulfur-containing natural gas detection probe, a guide rail spring, a guide rod, a connecting rod, a rear wheel support, a protective cover and a propeller. The invention can install the existing buried pipelines in the urban area in parallel, can also be built in an elevated manner in the mine area, has more application scenes, needs a small number of detectors, has long detection pipeline path and high economic benefit, and effectively realizes the purposes of continuously detecting the leakage of the sulfur-containing natural gas pipeline and positioning.
Description
Technical Field
The invention relates to the field of oil-gas safety engineering, in particular to a sulfur-containing natural gas pipeline leakage detection device and method for continuous sampling analysis.
Background
The natural gas is a dangerous chemical and has the characteristics of flammability and explosiveness, and the explosion limit is 5-15%. If the natural gas leaks, explosive gas is easily formed, and explosion can be caused when the natural gas leaks with open fire. Therefore, natural gas pipeline leak detection and location techniques are gaining increasing attention as techniques for ensuring safe operation of pipelines. The method for detecting and positioning the leakage of the natural gas pipeline is high in precision, safe and stable, and has very important significance in maintaining the normal operation of the pipeline.
The research on the natural gas pipeline leakage detection method has been in history for decades, but due to the complexity of problems, such as the diversity of pipeline transmission media, the diversity of the environment where the pipeline is located, the diversity of leakage forms and the like, no method can meet all the requirements of leakage detection at present.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device and a method for detecting the leakage of a sulfur-containing natural gas pipeline, wherein the device can carry out continuous sampling detection and alarm.
The purpose of the invention is realized by the following technical scheme:
sulfur-containing natural gas pipeline leakage detection device based on parallel pipeline continuous sampling analysis, including detector operation piping system and detector, its characterized in that, detector operation piping system is including quick-open blind plate, manometer, bleed valve, send out ball valve, indicator, receipts ball valve, bleed valve, detector operation pipeline, electronic locator, detection information receiver, the detector includes gyro wheel, front wheel support, spring, battery barrel, rear end cap, front end cap, contains sulfur natural gas test probe, guide rail spring, guide arm, connecting rod, rear wheel support, protection casing, screw, detector transmitting terminal and the recovery end of detector operation pipeline all are provided with quick-open blind plate, manometer, bleed valve, set up behind the bleed valve and send out ball valve, indicator.
Preferably, the detector operation conduit is a gas permeable, corrosion resistant flexible conduit with a certain support capacity.
Preferably, the outer inlet and outlet ends of the detector running pipeline are respectively provided with an electronic positioner and a detection information receiver.
Preferably, the detector operation pipeline is built beside the gas transmission pipeline.
Preferably, the detector is placed in the detector operation pipeline.
Preferably, the front wheel support is sequentially connected with a front end cover, a battery barrel, a rear end cover and a rear wheel support.
Preferably, a spring is connected between the front wheel bracket and the rear wheel bracket.
Preferably, the rollers are respectively arranged at the front and the rear of the detector and are respectively fixed by a front wheel bracket and a rear wheel bracket.
Preferably, connecting rods are connected between the front wheel bracket, the rear wheel bracket and the guide rail.
Preferably, the front wheel bracket and the rear wheel bracket are connected through a guide rod and a guide rail spring, and opposite angles of the front wheel bracket and the rear wheel bracket are connected through a spring.
Preferably, the protective cover is fixed on the rear end cover, and a propeller is arranged in the protective cover.
Compared with the prior art, the invention has the following beneficial effects:
(1) through the detector operation piping system who sets up, can install in parallel to existing buried pipeline in the urban area, also can be at the overhead construction of mine district, the applied scene is many, and can calculate the leak site position according to detector operating speed.
(2) The invention needs less detectors, has long detection pipeline path and high economic benefit, and can realize dynamic continuous detection.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an isometric schematic view of a detector structure of the present invention;
FIG. 3 is a schematic front view of the detector configuration of the present invention;
in the figure, a quick-opening blind plate 1, a pressure gauge 2, a vent valve 3, a ball valve 4, an indicator 5, a ball valve 6, a blow-off valve 7, a gas transmission pipeline 8, a detector operation pipeline 9, an electronic positioner 10, a detection information receiver 11, a roller 12, a front wheel support 13, a spring 14, a battery barrel 15, a rear wheel support 16, a front end cover 17, a sulfur-containing natural gas detection probe 18, a guide rail spring 19, a guide rail 20, a connecting rod 21, a rear wheel support 22, a protective cover 23 and a propeller 24 are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the objects and effects of the present invention will become more apparent, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
As shown in fig. 1-3, the device for detecting the leakage of the sulfur-containing natural gas pipeline based on the continuous sampling and analysis of the parallel pipelines comprises a detector operation pipeline system and a detector, and is characterized in that the detector operation pipeline system comprises a quick-opening blind plate 1, a pressure gauge 2, a vent valve 3, a ball-sending valve 4, an indicator 5, a ball-receiving valve 6, a blow-off valve 7, a detector operation pipeline 9, an electronic positioner 10 and a detection information receiver 11, the detector comprises a roller 12, a front wheel bracket 13, a spring 14, a battery barrel 15, a rear end cover 16, a front end cover 17, a sulfur-containing natural gas detection probe 18, a guide spring 19, a guide rail 20, a connecting rod 21, a rear wheel bracket 22, a protective cover 23 and a propeller 24, the detector transmitting end and the detector recovering end of the detector operation pipeline 9 are provided with the quick-opening blind plate 1, the pressure gauge 2 and the blow-off valve 7, and the blow-off valve 4, the blow-off valve 7 is arranged behind the blow-off valve 7, An indicator 5.
The detector operation pipeline 9 is a corrosion-resistant flexible pipeline which can be permeated by gas and has certain supporting capacity, and an electronic positioner 10 and a detection information receiver 11 are respectively arranged at the inlet and outlet ends of the outer side and are built beside the gas transmission pipeline 8.
The sulfur-containing natural gas detection probe 18 is arranged in the detector running pipeline 9, 4 rollers 12 are arranged in front of and behind the detector and are respectively fixed by a front wheel support 13 and a rear wheel support 22, the front wheel support 13 is sequentially connected with a front end cover 17, a battery barrel 15, a rear end cover 16 and the rear wheel support 22, springs are connected between the front wheel support 13 and the rear wheel support 22, connecting rods 21 are connected between the front wheel support 13 and the rear wheel support 22 and a guide rail 20, the front wheel support 13 and the rear wheel support 22 are connected through a guide rod 20 and a guide rail spring 19, opposite angles of the front wheel support 13 and the rear wheel support 22 are connected by the springs 14, and a propeller 24 is arranged in a protective cover 23 and fixed on the rear end cover 16.
Example (b): when the leakage of the sulfur-containing natural gas is detected on the existing urban underground gas transmission pipeline, the detector is installed by the gas transmission pipeline in a buried manner. Opening the quick-opening blind plate, putting a detector, and giving no alarm when no sulfur-containing natural gas leaks; when the position of the detector passes through the electronic positioner, the electronic positioner performs the functions of tracking, positioning and feeding back information; the detector continues to operate forwards, when natural gas leakage occurs, the detector operation pipeline can allow sulfur-containing natural gas to permeate but not permeate, the gas detection probe senses the natural gas and alarms to the detection information receiver; when the detector running pipeline has a certain upward gradient, the propeller receives a signal to start and provides forward thrust. When the leakage detection of the sulfur-containing natural gas is carried out on the outdoor gas transmission pipeline in the mining area of the mountainous area, the operation pipeline of the detector can be erected on the existing pipeline, and the specific operation method is the same as the above. The design is simple and rapid, the application scenes are multiple, the position of a leakage point can be calculated according to the running speed of the detector, the number of required detectors is small, the path of a detection pipeline is long, the economic benefit is high, and dynamic continuous sampling detection can be realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (12)
1. Sulfur-containing natural gas pipeline leakage detection device based on parallel pipeline continuous sampling analysis, including detector operation piping system and detector, its characterized in that, detector operation piping system is including quick-opening blind plate (1), manometer (2), bleed valve (3), ball-serving valve (4), indicator (5), receipts ball valve (6), blowoff valve (7), detector operation pipeline (9), electronic positioner (10), detection information receiver (11), the detector includes gyro wheel (12), front wheel support (13), spring (14), battery section of thick bamboo (15), rear end cover (16), front end cover (17), sulfur-containing natural gas test probe (18), guide rail spring (19), guide rail (20), connecting rod (21), rear wheel support (22), protection casing (23), screw (24), the detector transmitting end and the recovery end of detector operation pipeline (9) all are provided with quick-opening blind plate (1), The device comprises a pressure gauge (2) and a blow-down valve (7), wherein a ball sending valve (4) and an indicator (5) are arranged behind the blow-down valve (7).
2. The sour natural gas pipeline leak testing device based on parallel pipeline continuous sampling analysis of claim 1, characterized in that: the detector operation pipeline (9) is a corrosion-resistant flexible pipeline which is permeable to gas and has certain supporting capacity.
3. The sour natural gas pipeline leak testing device based on parallel pipeline continuous sampling analysis of claim 2, characterized in that: an electronic positioner (10) and a detection information receiver (11) are respectively arranged at the outer inlet and outlet ends of the detector operation pipeline (9).
4. The sour natural gas pipeline leak testing device based on parallel pipeline continuous sampling analysis of claim 2, characterized in that: the detector operation pipeline (9) is built beside the gas transmission pipeline (8).
5. The sour natural gas pipeline leak testing device based on parallel pipeline continuous sampling analysis of claim 1, characterized in that: the sulfur-containing natural gas detection probe (18) is arranged in the detector operation pipeline (9).
6. The sour natural gas pipeline leak testing device based on parallel pipeline continuous sampling analysis of claim 1, characterized in that: the number of the rollers (12) is 4 respectively arranged in front of and behind the detector, and the rollers are respectively fixed by a front wheel bracket (13) and a rear wheel bracket (22).
7. The sour natural gas pipeline leak testing device based on parallel pipeline continuous sampling analysis of claim 1, characterized in that: a spring (14) is connected between the front wheel bracket (13) and the rear wheel bracket (22).
8. The sour natural gas pipeline leak testing device based on parallel pipeline continuous sampling analysis of claim 1, characterized in that: the front wheel bracket (13) is sequentially connected with a front end cover (17), a battery barrel (15), a rear end cover (16) and a rear wheel bracket (22).
9. The sour natural gas pipeline leak testing device based on parallel pipeline continuous sampling analysis of claim 8, characterized in that: connecting rods (21) are connected between the front wheel bracket (13), the rear wheel bracket (22) and the guide rail (20).
10. The sour natural gas pipeline leak testing device based on parallel pipeline continuous sampling analysis of claim 8, characterized in that: the front wheel bracket (13) and the rear wheel bracket (22) are connected through a guide rod (20) and a guide rail spring (19), and the opposite angles of the front wheel bracket and the rear wheel bracket are connected through a spring (14).
11. The sour natural gas pipeline leak testing device based on parallel pipeline continuous sampling analysis of claim 1, characterized in that: the protective cover (23) is fixed on the rear end cover (16) and is internally provided with a propeller (24).
12. A method of leak testing a sour gas pipeline using the apparatus of claim 1, comprising the steps of:
(1) opening the quick-opening blind plate (1) and putting the detector into the quick-opening blind plate; when no sulfur-containing natural gas leaks, no alarm is given;
(2) when the detector position passes through the electronic positioner (10), the electronic positioner performs the functions of tracking, positioning and information feedback;
(3) the detector continues to operate forwards, when natural gas leakage occurs, the detector operation pipeline (9) can allow sulfur-containing natural gas to permeate but not permeate, the gas detection probe (18) senses the natural gas and alarms to the detection information receiver (11).
(4) When the detector operation pipeline (9) has a certain upward gradient, the propeller (24) receives a signal to start and provides forward thrust.
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| CN202110426391.3A CN113217824A (en) | 2021-04-20 | 2021-04-20 | Sulfur-containing natural gas pipeline leakage detection device and method based on parallel pipeline continuous sampling analysis |
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| CN202110426391.3A CN113217824A (en) | 2021-04-20 | 2021-04-20 | Sulfur-containing natural gas pipeline leakage detection device and method based on parallel pipeline continuous sampling analysis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115015493A (en) * | 2022-08-09 | 2022-09-06 | 徐州矿安新材料研究院有限公司 | Mining environment air sampling and analyzing device and sampling and analyzing method |
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