CN108195635B - Waste gas sampling device - Google Patents
Waste gas sampling device Download PDFInfo
- Publication number
- CN108195635B CN108195635B CN201711439282.5A CN201711439282A CN108195635B CN 108195635 B CN108195635 B CN 108195635B CN 201711439282 A CN201711439282 A CN 201711439282A CN 108195635 B CN108195635 B CN 108195635B
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- chamber
- outlet
- sampling device
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- 238000005070 sampling Methods 0.000 title claims abstract description 41
- 239000002912 waste gas Substances 0.000 title claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 238000000605 extraction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides an exhaust gas sampling device, comprising: a first housing defining a first chamber, a second chamber and a third chamber, the first chamber and the second chamber being spaced apart, the first chamber having a first inlet and a first outlet, the first outlet being smaller in size than the first inlet, the second chamber having a second inlet and a second outlet, the first outlet and the second outlet being respectively in communication with the third chamber to vent air to the third chamber; the air extracting device is arranged in the first cavity to form air flow; one end of the drainage tube is connected with the first shell and communicated with the third chamber; the second shell is limited with a fourth cavity, and the other end of the drainage tube is connected with the second shell and communicated with the fourth cavity; and the detection device is arranged in the fourth cavity and used for detecting the waste gas. According to the waste gas sampling device provided by the embodiment of the invention, the structure that the first chamber, the second chamber and the third chamber are combined is utilized, the waste gas sampling can be realized rapidly, the testing accuracy is improved, and the energy is saved.
Description
Technical Field
The invention relates to the technical field of environmental protection detection, in particular to a waste gas sampling device.
Background
In industrial production and life, waste gas is often discharged, the waste gas seriously harms the environment and human health, and the waste gas needs to be detected and controlled in the process of treating and monitoring the environment. The waste gas sampling device who uses usually gathers a certain amount of waste gas at certain time at present, then takes out the waste gas among the waste gas sampling device and carries out the detection and analysis, wastes time and energy. And the waste gas sampling device integrating sampling and detection has long sampling time and low detection accuracy because the airflow disorder can influence the detection result in the sampling process.
Disclosure of Invention
In view of the above, the present invention provides an exhaust gas sampling device.
In order to solve the technical problems, the invention adopts the following technical scheme:
an exhaust gas sampling apparatus according to an embodiment of the present invention includes: a first housing defining therein a first chamber, a second chamber and a third chamber, the first chamber and the second chamber being spaced apart, the first chamber having a first inlet and a first outlet, the first outlet being smaller in size than the first inlet, the second chamber having a second inlet and a second outlet, the first outlet and the second outlet respectively communicating with the third chamber to vent gas to the third chamber; the air extracting device is arranged in the first cavity to form air flow; one end of the drainage tube is connected with the first shell and communicated with the third chamber; a second shell, wherein a fourth chamber is defined in the second shell, and the other end of the drainage tube is connected with the second shell and communicated with the fourth chamber; and the detection device is arranged in the fourth cavity and used for detecting waste gas.
Further, the number of the first chambers is 2 or more, and the first chambers are arranged at intervals along the outer circumference of the second chamber.
Further, a baffle plate extending out of the first shell is arranged at the second inlet.
Furthermore, one end of the drainage tube extends into the third chamber, and the other end of the drainage tube extends into the fourth chamber.
Furthermore, the other end of the drainage tube is provided with a horn-shaped opening.
Further, the detection device includes: a concentration detection module for detecting the exhaust gas concentration; the concentration comparison component is used for comparing the concentration of the waste gas with a preset value.
Further, the detection device includes: a wind test assembly for testing the airflow rate of the exhaust gas within the fourth chamber.
Further, the exhaust gas sampling apparatus further includes: and the display device is arranged on the outer side of the second shell and is electrically connected with the detection device and/or the wind power test assembly.
Further, the exhaust gas sampling apparatus further includes: and the solar power supply device is respectively connected with the air extracting device and the detection device.
Further, the air exhaust device is an air exhaust fan.
The technical scheme of the invention has the following beneficial effects:
according to the waste gas sampling device provided by the embodiment of the invention, the device combining the first chamber, the second chamber, the third chamber and the detection device is adopted, and the pressure at the first outlet is reduced, so that waste gas can enter the second chamber from the second inlet without extra power and form airflow, thereby realizing waste gas sampling and primary detection of the waste gas, shortening the sampling time, improving the detection precision and saving energy.
Drawings
Fig. 1 is a schematic structural diagram of an exhaust gas sampling apparatus according to an embodiment of the present invention.
Reference numerals:
an exhaust gas sampling device 100;
a first housing 10; a first chamber 11; a second chamber 12; a third chamber 13; a first inlet 14; a first outlet 15; a second inlet 16; a second outlet 17;
an air extraction device 20; a drain tube 30;
a second housing 40; a fourth chamber 41;
a detection device 50; and a display device 60.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
The exhaust gas sampling apparatus 100 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, an exhaust gas sampling apparatus 100 according to an embodiment of the present invention includes a first housing 10, a pumping device 20, a draft tube 30, a second housing 40, and a sensing device 50.
Specifically, a first chamber 11, a second chamber 12 and a third chamber 13 are defined in the first housing 10, the first chamber 11 and the second chamber 12 are arranged in a spaced manner, the first chamber 11 has a first inlet 14 and a first outlet 15, the first outlet 15 has a size smaller than that of the first inlet 14, the second chamber 12 has a second inlet 16 and a second outlet 17, the first outlet 15 and the second outlet 17 are respectively communicated with the third chamber 13 to discharge air to the third chamber 13, the air extractor 20 is arranged in the first chamber 11 to form air flow, one end of the draft tube 30 is connected with the first housing 10 and communicated with the third chamber 13, a fourth chamber 41 is defined in the second housing 40, the other end of the draft tube 30 is connected with the second housing 40 and communicated with the fourth chamber 41, and the detection device 50 is arranged in the fourth chamber 41 to detect exhaust gas.
In other words, the exhaust gas sampling device 100 according to the embodiment of the present invention mainly comprises a first housing 10, an air extractor 20, a drainage tube 30, a second housing 40 and a detection device 50, wherein the first chamber 11 and the second chamber 12 are arranged at a distance, the first chamber 11 and the second chamber 12 are respectively communicated with the third chamber 13, the air extractor 20 is arranged in the first chamber 11, exhaust gas is sucked into the first chamber 11 through the first inlet 14 by the air extractor 30 and enters the third chamber 13 through the first outlet 15, because the size of the first outlet 15 is smaller than that of the first inlet 14, the gas flow rate at the first outlet 15 is larger than that at the first inlet 14, it should be noted that the first outlet 15 can be formed as a tapered section, the pressure at the first outlet 15 is reduced, even a negative pressure is formed, and at this time, the gas in the second chamber 12 enters the third chamber 13 under the negative pressure, the exhaust gas enters the second chamber 12 from the second inlet 16, enters the third chamber 13 through the second outlet 17, and forms a gas flow, and the gas flow in the third chamber 13 enters the fourth chamber 41 through the drainage tube 30, and the gas flow is stable and the concentration, the flow rate and other parameters of the gas flow can be detected by the detection device 50.
It should be noted that the second casing 40 may further be provided with an air outlet to discharge the detected exhaust gas.
Therefore, according to the exhaust gas sampling device 100 of the embodiment of the present invention, by using a device in which the first housing 10, the air extraction device 20, the draft tube 30, the second housing 40 and the detection device 50 are combined, the sampling time can be shortened, the energy can be saved, the air flow is stable, and the detection accuracy can be improved.
According to one embodiment of the present invention, the number of the first chambers 11 is 2 or more, and the first chambers 11 are arranged at intervals along the outer circumference of the second chamber 12. That is, a plurality of first chambers 11 may be provided at intervals at the outer circumference of the second chamber 12, and the plurality of first chambers 11 may be arranged at equal intervals.
In some embodiments of the present invention, a baffle is disposed at the second inlet 16 and extends out of the first housing 10, and the second inlet 16 extends out of the housing for a length longer than the first inlet 14.
According to an embodiment of the present invention, one end of the draft tube 30 is extended into the third chamber 13, and the other end of the draft tube 30 is extended into the fourth chamber 41, and the length of the extended ends of both ends of the draft tube 30 can be adjusted, thereby improving the stability of the flows of different gases.
Further, the other end of the drainage tube 30 is provided with a trumpet-shaped opening.
In some embodiments of the present invention, the detection device 50 comprises: concentration detection subassembly and concentration comparison subassembly.
Specifically, the concentration detection assembly is used for detecting the concentration of the exhaust gas, and the concentration comparison assembly is used for comparing the concentration of the exhaust gas with a preset value.
Further, the detection device 50 includes: wind test assembly.
In particular, the wind test assembly is used to test the airflow rate of the exhaust gas in the fourth chamber 41.
According to an embodiment of the present invention, the exhaust gas sampling apparatus 100 according to an embodiment of the present invention further includes: and a display device 60.
Specifically, the display device 60 is disposed outside the second housing 40, the display device 60 is electrically connected to the detection device 50 and/or the wind power testing component, and the display device 60 may include a display screen for displaying the detection result and the like, thereby facilitating observation and real-time adjustment.
Further, the exhaust gas sampling apparatus 100 according to the embodiment of the present invention further includes: provided is a solar power supply device.
Specifically, the solar power supply device can be connected with the air extraction device 20 and the detection device 50 respectively, so that energy is saved.
In some embodiments of the present invention, the air extracting device 20 may be an air extractor, through which the exhaust gas is sucked into the first chamber 11.
In summary, according to the exhaust gas sampling apparatus 100 of the embodiment of the present invention, exhaust gas sampling and real-time preliminary detection of exhaust gas can be realized, sampling time can be shortened, detection accuracy can be improved, and energy can be saved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. An exhaust sampling device, comprising:
a first housing defining therein a first chamber, a second chamber and a third chamber, the first chamber and the second chamber being spaced apart, the first chamber having a first inlet and a first outlet, the first outlet being smaller in size than the first inlet, the second chamber having a second inlet and a second outlet, the first outlet and the second outlet respectively communicating with the third chamber to vent gas to the third chamber;
the air extracting device is arranged in the first cavity to form air flow;
one end of the drainage tube is connected with the first shell and communicated with the third chamber;
a fourth cavity is defined in the second shell, the other end of the drainage tube is connected with the second shell and communicated with the fourth cavity, and an air outlet is formed in the second shell;
and the detection device is arranged in the fourth cavity and used for detecting waste gas.
2. The exhaust sampling device of claim 1, wherein the first chambers are more than 2 in number, the first chambers being spaced apart along a periphery of the second chamber.
3. The exhaust sampling device of claim 2, wherein a baffle extending out of the first housing is provided at the second inlet.
4. The exhaust sampling device of claim 1, wherein one end of the draft tube extends into the third chamber and the other end of the draft tube extends into the fourth chamber.
5. The exhaust sampling device of claim 4, wherein the other end of the draft tube is provided with a flared opening.
6. The exhaust sampling device of claim 4, wherein the detection device comprises:
a concentration detection module for detecting the exhaust gas concentration;
the concentration comparison component is used for comparing the concentration of the waste gas with a preset value.
7. The exhaust sampling device of claim 6, wherein the detection device comprises:
a wind test assembly for testing the airflow rate of the exhaust gas within the fourth chamber.
8. The exhaust sampling device of claim 7, further comprising:
and the display device is arranged on the outer side of the second shell and is electrically connected with the detection device and/or the wind power test assembly.
9. The exhaust sampling device of claim 8, further comprising:
and the solar power supply device is respectively connected with the air extracting device and the detection device.
10. The exhaust sampling device of any of claims 1-9, wherein the air extraction device is an air extractor fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439282.5A CN108195635B (en) | 2017-12-25 | 2017-12-25 | Waste gas sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439282.5A CN108195635B (en) | 2017-12-25 | 2017-12-25 | Waste gas sampling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108195635A CN108195635A (en) | 2018-06-22 |
| CN108195635B true CN108195635B (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711439282.5A Expired - Fee Related CN108195635B (en) | 2017-12-25 | 2017-12-25 | Waste gas sampling device |
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| Country | Link |
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| CN (1) | CN108195635B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11385212B2 (en) * | 2020-09-25 | 2022-07-12 | Honeywell International Inc. | Smoke detection sample point |
Citations (8)
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|---|---|---|---|---|
| JP2005537488A (en) * | 2002-09-03 | 2005-12-08 | ツェルウェガー アナリティクス リミテッド | Gas supply adapter |
| CN101491440A (en) * | 2008-01-25 | 2009-07-29 | 深圳市中核海得威生物科技有限公司 | Carbon dioxide gas collection device |
| CN102460028A (en) * | 2009-06-05 | 2012-05-16 | 爱克斯崔里斯科技有限公司 | Gas detector apparatus |
| CN104535379A (en) * | 2014-12-31 | 2015-04-22 | 同方威视技术股份有限公司 | Sampling device and gas curtain guiding body |
| CN205844036U (en) * | 2016-07-26 | 2016-12-28 | 安徽宏远职业卫生技术服务有限公司 | A kind of environment measuring atmosphere sampler |
| CN106323690A (en) * | 2015-06-18 | 2017-01-11 | 志尚仪器股份有限公司 | Semidry electrostatic cyclone sampler, and gas and/or water sampling method |
| CN206020118U (en) * | 2016-08-30 | 2017-03-15 | 云南坤发环境科技有限公司 | A kind of multichannel atmosphere sampler |
| CN206710162U (en) * | 2017-05-12 | 2017-12-05 | 安徽众诚环境检测有限公司 | A kind of environment measuring Multipoint synchronous atmosphere sampler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7172730B2 (en) * | 2002-12-09 | 2007-02-06 | Hewlett-Packard Development Company, L.P. | Thermal sensor |
-
2017
- 2017-12-25 CN CN201711439282.5A patent/CN108195635B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005537488A (en) * | 2002-09-03 | 2005-12-08 | ツェルウェガー アナリティクス リミテッド | Gas supply adapter |
| CN101491440A (en) * | 2008-01-25 | 2009-07-29 | 深圳市中核海得威生物科技有限公司 | Carbon dioxide gas collection device |
| CN102460028A (en) * | 2009-06-05 | 2012-05-16 | 爱克斯崔里斯科技有限公司 | Gas detector apparatus |
| CN104535379A (en) * | 2014-12-31 | 2015-04-22 | 同方威视技术股份有限公司 | Sampling device and gas curtain guiding body |
| CN106323690A (en) * | 2015-06-18 | 2017-01-11 | 志尚仪器股份有限公司 | Semidry electrostatic cyclone sampler, and gas and/or water sampling method |
| CN205844036U (en) * | 2016-07-26 | 2016-12-28 | 安徽宏远职业卫生技术服务有限公司 | A kind of environment measuring atmosphere sampler |
| CN206020118U (en) * | 2016-08-30 | 2017-03-15 | 云南坤发环境科技有限公司 | A kind of multichannel atmosphere sampler |
| CN206710162U (en) * | 2017-05-12 | 2017-12-05 | 安徽众诚环境检测有限公司 | A kind of environment measuring Multipoint synchronous atmosphere sampler |
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| Title |
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| High-Volume Air Sampler for Particle and Gas Sampling.1. Desigh and Gas Sampling Performance;Hart K M 等;《Environmental Science & Technology》;19920331;第26卷(第5期);1048-1052 * |
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| Publication number | Publication date |
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| CN108195635A (en) | 2018-06-22 |
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Granted publication date: 20200703 |