CN114017687A - Chemical gas leakage detection device - Google Patents
Chemical gas leakage detection device Download PDFInfo
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- CN114017687A CN114017687A CN202111526804.1A CN202111526804A CN114017687A CN 114017687 A CN114017687 A CN 114017687A CN 202111526804 A CN202111526804 A CN 202111526804A CN 114017687 A CN114017687 A CN 114017687A
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- detection
- gas leakage
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- gas
- leakage detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 84
- 239000000126 substance Substances 0.000 title claims abstract description 30
- 230000003287 optical effect Effects 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 42
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a chemical gas leakage detection device, which relates to the technical field of gas leakage detection and comprises the following components: the detection tube is arranged beside the chemical pipeline in a non-contact manner, at least one micropore which is communicated with the inside and the outside is arranged on the detection tube, and the detection tube is communicated with the air inlet end of the air pump; the gas leakage detection assembly is communicated with the detection pipe and is used for detecting whether colored gas in the chemical pipeline is contained in the detection pipe. According to the invention, the detection pipe is arranged on one side of the chemical pipeline, and can be set to have the same length and bending angle as the chemical hanging pipeline, so that the adaptability is strong.
Description
Technical Field
The invention relates to the technical field of gas leakage detection, in particular to a chemical gas leakage detection device.
Background
At present, researchers at home and abroad have a lot of researches on a pipeline leakage detection method and a leakage signal processing method, and among the pipeline leakage detection methods, a negative pressure wave detection method is the most commonly applied method, and an acoustic wave detection method is the most mature method. The acoustic wave detection method has high sensitivity, high positioning accuracy and good environmental adaptability, and becomes the key point of the current domestic and foreign research, and various derivation methods based on the acoustic wave detection method, such as an acoustic wave amplitude positioning technology, a leakage detection technology based on sound pressure interactive recognition, and the like, emerge.
However, the above method has its limitations, wherein the negative pressure wave detection method mainly uses transient negative pressure wave signals to detect the leakage of the pipeline, which requires real-time performance, but cannot detect the leaking pipeline, and cannot continuously reflect the leakage state of the pipeline, and the false alarm rate is high, and the on-off of the valve and the start-up and the stop of the pump may cause false alarms; the sound wave detection method can lead to the measuring effect to be poor along with the increase of the distance, the external environment can weaken sound wave signals, factors such as different shapes of gaps at leakage positions, different leakage gases and the like can influence sound frequency, the adaptability is poor, and therefore the change is needed urgently, and a chemical gas leakage detection device particularly suitable for long distances is needed.
Disclosure of Invention
The invention aims to solve the problems and provides a chemical gas leakage detection device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a chemical gas leak detection apparatus, comprising:
the detection tube is arranged beside the chemical pipeline in a non-contact manner, at least one micropore which is communicated with the inside and the outside is arranged on the detection tube, and the detection tube is communicated with the air inlet end of the air pump;
the gas leakage detection assembly is communicated with the detection pipe and is used for detecting whether colored gas in the chemical pipeline is contained in the detection pipe.
Optionally, an air outlet end of the air pump is communicated with a three-way pipe, two output ends of the three-way pipe are respectively provided with a first electromagnetic valve, an air outlet, a second electromagnetic valve and a pressure vessel, and the first electromagnetic valve and the second electromagnetic valve are both electrically connected with the control module.
Optionally, the gas leakage detection assembly comprises a detection container, a light source, a light receiver, a partition plate and a control module;
openings are formed in both ends of the detection container and are communicated with the detection pipe, and a partition plate allowing gas to bypass is arranged between the two openings in the detection container;
the gas leakage detection device is characterized in that normally open light sources are symmetrically arranged in the detection container, a light receiver for receiving light of the light sources is further arranged in the detection container, the output level is increased when the light receiver receives the light, and when the control module detects that the level of the light receiver changes, the gas leakage is judged.
Optionally, the gas leakage detecting assembly further includes a clamp and an optical filter, the clamp is disposed on the partition plate, the clamp clamps the optical filter, and the optical filter is disposed between the light source and the light receiver.
Optionally, the number of the light sources, the number of the light receivers and the number of the optical filters are three, the optical filters are red, green and blue optical filters, and an included angle between the optical filters is 90 °.
Compared with the prior art, the invention has the following advantages:
according to the invention, the detection pipe is arranged on one side of the chemical pipeline, and can be set to have the same length and bending angle as the chemical hanging pipeline, so that the adaptability is strong.
According to the invention, the gas leakage detection assembly is arranged, the normally open light sources are symmetrically arranged in the detection container, the light receiver for receiving light of the light sources is also arranged in the detection container, the output level is raised when the light receiver receives the light, and when the control module detects that the level of the light receiver changes, the gas leakage is judged, so that the gas leakage of the chemical pipeline can be detected in real time.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a gas leak detection assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a second embodiment of a gas leak detection assembly according to the present invention;
FIG. 4 is a third schematic view of a gas leak detection assembly according to an embodiment of the present invention.
In the figure: the gas leakage detection device comprises a chemical pipeline 1, a detection pipe 2, a micropore 3, a gas leakage detection assembly 4, a detection container 41, a light source 42, a light ray receiver 43, a partition plate 44, a clamp 45, an optical filter 46, an air pump 5, a first electromagnetic valve 6, a gas outlet 7, a second electromagnetic valve 8, a pressure container 9 and a control module 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1 and 2, the detecting tube 2 is disposed beside the chemical pipeline 1 in a non-contact manner, in this embodiment, the detecting tube 2 may be disposed in parallel, and if the chemical pipeline 1 is bent, the detecting tube 2 is also bent synchronously.
The gas detection device is characterized in that at least one micropore 3 communicated with the inside and the outside is formed in the detection tube 2, the detection tube 2 is communicated with the gas inlet end of the gas pump 5, the micropore 3 plays a role of gas suction, and according to aerodynamics, when the gas height of the detection tube 2 passes through, the internal gas pressure of the detection tube is smaller than the external atmospheric pressure, so that the external gas is sucked into the detection tube 2 through the micropore 3.
In this embodiment, the air outlet end of the air pump 5 is communicated with a three-way pipe, two output ends of the three-way pipe are respectively provided with a first electromagnetic valve 6, an air outlet 7, a second electromagnetic valve 8 and a pressure vessel 9, the first electromagnetic valve 6 and the second electromagnetic valve 8 are both electrically connected with a control module 10, and the control module 10 can adopt a single chip microcomputer.
Gas leakage detection subassembly 4 and test tube 2 intercommunication, gas leakage detection subassembly 4 is used for detecting whether contain the coloured gas in the chemical pipeline 1 in the test tube 2, specifically as follows:
the gas leakage detecting assembly 4 comprises a detecting container 41, a light source 42, a light receiver 43, a partition 44 and a control module 10, and the components are connected in the following manner:
the two ends of the detection container 41 are provided with openings and communicated with the detection tube 2, and a partition plate 44 for gas to bypass is arranged between the two openings in the detection container 41.
Normally-open light sources 42 are symmetrically arranged in the detection container 41, a light receiver 43 for receiving light rays of the light sources 42 is further arranged in the detection container 41, the output level is raised when the light receiver 43 receives the light rays, and when the control module 10 detects that the level of the light receiver 43 changes, gas leakage is judged.
Example two
Referring to fig. 1 and 3, in this embodiment, on the basis of the first embodiment, the gas leakage detecting assembly 4 further includes a clamp 45 and an optical filter 46, the clamp 45 is disposed on the partition 44, the clamp 45 clamps the optical filter 46, and the optical filter 46 is disposed between the light source 42 and the light receiver 43.
Because the optical filter 46 is disposed so that only a specified color can pass through the optical filter 46, the color of the optical filter 46 should be the same as or similar to the color of the chemical gas, for example, the chlorine gas is yellow green, the nitrogen dioxide gas is brown red, etc., so that when the light irradiates the chemical gas, the light is absorbed, and thus the light passing through the optical filter 46 becomes less, the directionality of the detection can be increased, and the influence of other external gases can be reduced.
EXAMPLE III
Referring to fig. 1 and 4, in the present embodiment, on the basis of the second embodiment, the number of the light source 42, the number of the light receiver 43, and the number of the optical filters 46 are three, the optical filters 46 are red, green, and blue optical filters, respectively, and an included angle between the optical filters 46 is 90 °.
In this embodiment, the arrangement of the plurality of light sources 42 and the optical filters 46 can detect the chemical gases with different colors in different pipelines in real time, and each optical filter 46 can perform independent orientation, so that the detection range of the device is wider.
The above description is only a preferred embodiment of the present invention, and not intended to be exhaustive or to limit the scope of the present invention, and any person skilled in the art should be able to make equivalents and modifications within the technical scope of the present invention.
Claims (5)
1. The utility model provides a chemical industry gas leak testing device which characterized in that includes:
the detection pipe (2) is arranged beside the chemical pipeline (1) in a non-contact manner, at least one micropore (3) which is communicated with the inside and the outside is formed in the detection pipe (2), and the detection pipe (2) is communicated with the air inlet end of the air pump (5);
the gas leakage detection assembly (4), gas leakage detection assembly (4) and test tube (2) intercommunication, gas leakage detection assembly (4) are used for detecting whether contain the coloured gas in the chemical pipeline (1) in test tube (2).
2. The chemical gas leakage detection device according to claim 1, wherein an air outlet end of the air pump (5) is communicated with a three-way pipe, two output ends of the three-way pipe are respectively provided with a first electromagnetic valve (6), an air outlet (7), a second electromagnetic valve (8), a pressure vessel (9) and a control module (10), and the first electromagnetic valve (6) and the second electromagnetic valve (8) are electrically connected with the control module (10).
3. The chemical gas leakage detection device according to claim 1, wherein the gas leakage detection assembly (4) comprises a detection container (41), a light source (42), a light receiver (43), a partition plate (44) and a control module (10);
openings are formed in the two ends of the detection container (41) and are communicated with the detection pipe (2), and a partition plate (44) allowing gas to bypass is arranged between the two openings in the detection container (41);
the gas leakage detection device is characterized in that normally-open light sources (42) are symmetrically arranged in the detection container (41), a light receiver (43) for receiving light of the light sources (42) is further arranged in the detection container (41), the output level is increased when the light receiver (43) receives the light, and when the control module (10) detects that the level of the light receiver (43) changes, gas leakage is judged.
4. A chemical gas leak detection apparatus according to claim 3, wherein the gas leak detection assembly (4) further comprises a clamp (45) and a filter (46), the clamp (45) is disposed on the partition (44), the clamp (45) clamps the filter (46), and the filter (46) is disposed between the light source (42) and the light receiver (43).
5. The chemical gas leakage detection device according to claim 4, wherein the number of the light source (42), the number of the light receiver (43) and the number of the optical filters (46) are three, the optical filters (46) are respectively red, green and blue, and the included angle between the optical filters (46) is 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111526804.1A CN114017687A (en) | 2021-12-14 | 2021-12-14 | Chemical gas leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111526804.1A CN114017687A (en) | 2021-12-14 | 2021-12-14 | Chemical gas leakage detection device |
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| Publication Number | Publication Date |
|---|---|
| CN114017687A true CN114017687A (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111526804.1A Pending CN114017687A (en) | 2021-12-14 | 2021-12-14 | Chemical gas leakage detection device |
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| Country | Link |
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| CN (1) | CN114017687A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117990294A (en) * | 2024-04-02 | 2024-05-07 | 江苏泷洋科技有限公司 | Chemical industry pressure vessel leak detection device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100005860A1 (en) * | 2006-10-10 | 2010-01-14 | Paul Coudray | Device for conveying a substance provided with an optical leak detector |
| CN105548041A (en) * | 2015-12-09 | 2016-05-04 | 王仲英 | Device and method for detecting gas leakage |
| CN105738309A (en) * | 2016-02-04 | 2016-07-06 | 杭州巨之灵科技有限公司 | Methane detector and method |
| CN109507140A (en) * | 2018-10-16 | 2019-03-22 | 武汉四方光电科技有限公司 | A kind of high-precision infrared gas sensor and analysis method for gases |
| CN109839363A (en) * | 2019-03-20 | 2019-06-04 | 中国科学院半导体研究所 | Multiple-gas detector |
| CN210266734U (en) * | 2019-07-18 | 2020-04-07 | 中海石油气电集团有限责任公司 | Gas pipeline leakage monitoring device capable of adjusting monitoring distance |
| CN210462475U (en) * | 2019-07-18 | 2020-05-05 | 中海石油气电集团有限责任公司 | Defeated natural gas of pipe trace leaks continuous monitoring device based on detecting tube |
| KR20230111845A (en) * | 2022-01-19 | 2023-07-26 | 탁남규 | Smart oil leak detection system for large-capacity oil tanks using the change in refractive index of the cladding layer. |
-
2021
- 2021-12-14 CN CN202111526804.1A patent/CN114017687A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100005860A1 (en) * | 2006-10-10 | 2010-01-14 | Paul Coudray | Device for conveying a substance provided with an optical leak detector |
| CN105548041A (en) * | 2015-12-09 | 2016-05-04 | 王仲英 | Device and method for detecting gas leakage |
| CN105738309A (en) * | 2016-02-04 | 2016-07-06 | 杭州巨之灵科技有限公司 | Methane detector and method |
| CN109507140A (en) * | 2018-10-16 | 2019-03-22 | 武汉四方光电科技有限公司 | A kind of high-precision infrared gas sensor and analysis method for gases |
| CN109839363A (en) * | 2019-03-20 | 2019-06-04 | 中国科学院半导体研究所 | Multiple-gas detector |
| CN210266734U (en) * | 2019-07-18 | 2020-04-07 | 中海石油气电集团有限责任公司 | Gas pipeline leakage monitoring device capable of adjusting monitoring distance |
| CN210462475U (en) * | 2019-07-18 | 2020-05-05 | 中海石油气电集团有限责任公司 | Defeated natural gas of pipe trace leaks continuous monitoring device based on detecting tube |
| KR20230111845A (en) * | 2022-01-19 | 2023-07-26 | 탁남규 | Smart oil leak detection system for large-capacity oil tanks using the change in refractive index of the cladding layer. |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117990294A (en) * | 2024-04-02 | 2024-05-07 | 江苏泷洋科技有限公司 | Chemical industry pressure vessel leak detection device |
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