CN103604731A - Anti-pollution dust detection mechanism - Google Patents
Anti-pollution dust detection mechanism Download PDFInfo
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- CN103604731A CN103604731A CN201310608183.0A CN201310608183A CN103604731A CN 103604731 A CN103604731 A CN 103604731A CN 201310608183 A CN201310608183 A CN 201310608183A CN 103604731 A CN103604731 A CN 103604731A
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Abstract
The invention discloses an anti-pollution dust detection mechanism. A first laser emitter (3) is arranged on the left wall of a dark room (1), an emitting hole of the first laser emitter (3) points to a bijection hole (2a), a hollow dustproof housing (4) is arranged outside the right wall of the dark room (1), openings are formed in two ends of the dustproof housing (4), the large end of an inner cavity (4a) of the dustproof housing (4) is communicated with the inner part of the dark room (1), a photoelectric sensor (5) is connected to the outer side wall of the small end of an inner cavity (4a) of the dustproof housing (4), and a center line of the photoelectric sensor (5), a center line of the first laser emitter (3) and a center line of the two bijection holes (2a) are positioned on the same straight line. According to the anti-pollution dust detection mechanism, the photoelectric sensor is prevented from being polluted by dust by adopting an airflow-preventing slope; and the concentration of low-concentration dust is detected by using a second laser emitter. The anti-pollution dust detection mechanism also has the characteristics of low reconstruction cost, strong anti-pollution capacity, higher detection precision and the like.
Description
Technical field
The present invention relates to a kind of dust testing agency for detection of dust concentration in air.
Background technology
Dust refers to and is suspended in airborne solia particle.In atmosphere, the existence of dust is the one of the main reasons that keeps global warming, and dust too much or very few in atmosphere will produce disastrous effect to environment.But in live and work, industrial dust is the natural enemy of human health, it is the main cause of bringing out various diseases.Detect dust concentration in air and have a lot of methods, utilize at present the sensor of dust concentration of optical detection principle development, in order to prevent that the interference of surround lighting from having adopted the structure of shielding principle mostly, in the darkroom of a shielding light, pass into and wear dust-contained airflow, in darkroom, be equiped with generating laser and optical sensor, light between generating laser and optical sensor can be passed from wear dust-contained airflow, detect the dust concentration of dust-contained airflow in dust-contained airflow pipe, and dust-contained airflow while ejecting all with certain impact power, under sensor works long hours situation, dust-contained airflow easily pollutes the photoelectric sensor in darkroom, thereby affect measuring accuracy, therefore need a kind of brand-new dust-contained airflow that can prevent to pollute the testing agency of photoelectric sensor.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of contaminated testing agency of photoelectric sensor that prevents.
Technical scheme of the present invention is as follows: a kind of resistant to pollution dust testing agency, comprise darkroom (1), described darkroom (1) is lighttight body structure, in darkroom (1), be penetrated with up and down dust-contained airflow pipe (2), all stretch out outside darkroom (1) at the upper and lower two ends of this dust-contained airflow pipe (2), on described dust-contained airflow pipe (2) tube wall, level offers two to perforation (2a) to wearing, two this be all positioned at darkroom (1) to perforation (2a), and left and right two walls of (1) towards darkroom respectively, on the left wall in described darkroom (1), be equiped with the first generating laser (3), the emission port of this first generating laser (3) points to perforation (2a), the right wall outside in described darkroom (1) is equiped with the dustproof shell (4) of hollow, the inner chamber (4a) of this dustproof shell (4) is truncated cone-shaped or terrace with edge shape, and this dustproof shell (4) both ends open, the large end of the inner chamber (4a) of described dustproof shell (4) communicates with inside, darkroom (1), the small end outside of the inner chamber (4a) of this dustproof shell (4) is connected with photoelectric sensor (5), the center line of described photoelectric sensor (5), the center line of the first generating laser (3) and two center lines to perforation (2a) are all located along the same line.
Use the darkroom of said structure, dust-contained airflow flows in dust-contained airflow pipe, the part that is arranged in mechanism due to dust-contained airflow pipe offers two to perforation to wearing, the generating laser of the left wall in darkroom is launched light, from to passing perforation, photoelectric sensor by the right wall in darkroom receives, and the dust concentration in dust-contained airflow pipe can be detected.When dust from dust-contained airflow tube wall to perforation in spray and enter into behind darkroom, because the impulsive force of air-flow can be to external diffusion, because photoelectric sensor is arranged on the small end outside of terrace with edge or round platform, when dust more and more approaches photoelectric sensor from the large end of terrace with edge or round platform, obstruction due to terrace with edge or round platform dip plane, the impulsive force of dust can be more and more less until dust stop motion, thereby reduce the pollution of dust to photoelectric sensor.
In described dust-contained airflow pipe (2) level of going back, to wearing, offer two scattering holes (2b), the center line in two these scattering holes (2b) and two center lines to perforation (2a) are all positioned in same level, and two these scattering holes (2b) are front and back two walls of (1) towards darkroom respectively, on the antetheca in described darkroom (1), be equiped with the second generating laser (6), the emission port of this second generating laser (6) points to scattering hole (2b), and the center line in the center line of this second generating laser (6) and two scattering holes (2b) is all located along the same line, the rear wall inner side in described darkroom (1) is laser traps face.When dust concentration is lower, the precision that adopts correlation principle to detect the dust concentration in dust-contained airflow pipe does not reach testing requirement, just need to adopt scattering principle to detect the dust concentration in dust-contained airflow pipe, close the first generating laser, be arranged on laser that the second generating laser on side, sidewall side, photoelectric sensor place emits from scattering hole enters dust-contained airflow pipe, due to its laser generation scattering, just can be to perforation, scattering enters in photoelectric sensor, by photoelectric sensor, caught, thereby detect, obtain dust concentration, and the light sending from the second generating laser is from scattering hole enters into laser traps face, by laser traps face, caught, prevent because reflection causes accuracy of detection to reduce.
Beneficial effect: the present invention has adopted anti-air-flow slope to stop the pollution of dust to photoelectric sensor, has used the second generating laser to detect low concentration dust concentration simultaneously, also have that improvement cost is low, contamination resistance is strong and accuracy of detection compared with high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As Fig. 1, shown in Fig. 2, the present invention includes darkroom 1, dust-contained airflow pipe 2, the first generating laser 3, dustproof shell 4, photoelectric sensor 5, with the second generating laser 6 parts such as grade, described darkroom 1 is lighttight body structure, the interior dust-contained airflow pipe 2 that is penetrated with up and down in darkroom 1, this dust-contained airflow pipe all stretches out outside darkroom 1 at two ends Shang Xia 2, on described dust-contained airflow pipe 2 tube walls, level offers two to perforation 2a to wearing, two this be all positioned at darkroom 1 to perforation 2a, and 1 left and right two walls towards darkroom respectively, on the left wall in described darkroom 1, be equiped with the first generating laser 3, the emission port of this first generating laser 3 points to perforation 2a, the right wall outside in described darkroom 1 is equiped with the dustproof shell 4 of hollow, the inner chamber 4a of this dustproof shell 4 is truncated cone-shaped or terrace with edge shape, and these dustproof shell 4 both ends opens, the large end of the inner chamber 4a of described dustproof shell 4 communicates with 1 inside, darkroom, the small end outside of the inner chamber 4a of this dustproof shell 4 is connected with photoelectric sensor 5, the center line of described photoelectric sensor 5, the center line of the first generating laser 3 and two center lines to perforation 2a are all located along the same line.In described dust-contained airflow pipe 2 level of going back, to wearing, offer two scattering hole 2b, the center line of two this scattering hole 2b and two are all positioned in same level to the center line of perforation 2a, and two this scattering hole 2b are 1 front and back two walls towards darkroom respectively, on the antetheca in described darkroom 1, be equiped with the second generating laser 6, the emission port of this second generating laser 6 points to scattering hole 2b, and the center line of the center line of this second generating laser 6 and two scattering hole 2b is all located along the same line, the rear wall in described darkroom 1 inner side is laser traps face.
The foregoing is only preferred embodiment of the present invention; not take this instructions as restriction; all any modifications of doing within the spirit and principles in the present invention, be equal to the quantity etc. of replacing and improving as change dial framework and benchmark post, within protection scope of the present invention all should be included in.
Claims (2)
1. a resistant to pollution dust testing agency, it is characterized in that: comprise darkroom (1), described darkroom (1) is lighttight body structure, in darkroom (1), be penetrated with up and down dust-contained airflow pipe (2), all stretch out outside darkroom (1) at the upper and lower two ends of this dust-contained airflow pipe (2), on described dust-contained airflow pipe (2) tube wall, level offers two to perforation (2a) to wearing, two this be all positioned at darkroom (1) to perforation (2a), and left and right two walls of (1) towards darkroom respectively, on the left wall in described darkroom (1), be equiped with the first generating laser (3), the emission port of this first generating laser (3) points to perforation (2a), the right wall outside in described darkroom (1) is equiped with the dustproof shell (4) of hollow, the inner chamber (4a) of this dustproof shell (4) is truncated cone-shaped or terrace with edge shape, and this dustproof shell (4) both ends open, the large end of the inner chamber (4a) of described dustproof shell (4) communicates with inside, darkroom (1), the small end outside of the inner chamber (4a) of this dustproof shell (4) is connected with photoelectric sensor (5), the center line of described photoelectric sensor (5), the center line of the first generating laser (3) and two center lines to perforation (2a) are all located along the same line.
2. resistant to pollution dust according to claim 1 testing agency, it is characterized in that: in described dust-contained airflow pipe (2) level of going back, to wearing, offer two scattering holes (2b), the center line in two these scattering holes (2b) and two center lines to perforation (2a) are all positioned in same level, and two these scattering holes (2b) are front and back two walls of (1) towards darkroom respectively, on the antetheca in described darkroom (1), be equiped with the second generating laser (6), the emission port of this second generating laser (6) points to scattering hole (2b), and the center line in the center line of this second generating laser (6) and two scattering holes (2b) is all located along the same line, the rear wall inner side in described darkroom (1) is laser traps face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310608183.0A CN103604731A (en) | 2013-11-25 | 2013-11-25 | Anti-pollution dust detection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310608183.0A CN103604731A (en) | 2013-11-25 | 2013-11-25 | Anti-pollution dust detection mechanism |
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| CN103604731A true CN103604731A (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310608183.0A Pending CN103604731A (en) | 2013-11-25 | 2013-11-25 | Anti-pollution dust detection mechanism |
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| CN (1) | CN103604731A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699275A (en) * | 2014-11-24 | 2016-06-22 | 新乡天翼过滤技术检测有限公司 | Microparticle counting system using laser imaging and projection |
| CN105784552A (en) * | 2014-12-24 | 2016-07-20 | 周志斌 | Particle concentration sensor and particle concentration detection method |
| CN107036949A (en) * | 2017-05-19 | 2017-08-11 | 武汉四方光电科技有限公司 | Dust concentration detection means and provided with dust concentration detection means air cleaning facility |
| CN108760687A (en) * | 2018-04-08 | 2018-11-06 | 深圳市天环通科技有限公司 | Laser light scattering cooking fume instrument |
| CN112748051A (en) * | 2020-12-23 | 2021-05-04 | 天津智易时代科技发展有限公司 | Negative pressure type oil smoke probe and detection method thereof |
| CN114018770A (en) * | 2021-11-23 | 2022-02-08 | 辽宁工程技术大学 | Multifunctional dust detection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3767306A (en) * | 1971-02-17 | 1973-10-23 | Gretag Ag | Method and apparatus for detecting dust particles by partial embedment in a layer whose surface is deformed by the particles and measuring radiation scattered by the particles with a schieren optical system |
| US4387993A (en) * | 1981-06-25 | 1983-06-14 | Tsi Incorporated | Particle size measuring method and apparatus |
| CN2562181Y (en) * | 2002-05-08 | 2003-07-23 | 北京宾达绿创科技有限公司 | Laser dust instrument |
| CN101162194A (en) * | 2007-11-16 | 2008-04-16 | 苏州华达仪器设备有限公司 | Optical senser of measurement dust particle |
| CN103272678A (en) * | 2013-06-24 | 2013-09-04 | 长兴电子材料（昆山）有限公司 | Dust-iron removing device for powder |
-
2013
- 2013-11-25 CN CN201310608183.0A patent/CN103604731A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3767306A (en) * | 1971-02-17 | 1973-10-23 | Gretag Ag | Method and apparatus for detecting dust particles by partial embedment in a layer whose surface is deformed by the particles and measuring radiation scattered by the particles with a schieren optical system |
| US4387993A (en) * | 1981-06-25 | 1983-06-14 | Tsi Incorporated | Particle size measuring method and apparatus |
| CN2562181Y (en) * | 2002-05-08 | 2003-07-23 | 北京宾达绿创科技有限公司 | Laser dust instrument |
| CN101162194A (en) * | 2007-11-16 | 2008-04-16 | 苏州华达仪器设备有限公司 | Optical senser of measurement dust particle |
| CN103272678A (en) * | 2013-06-24 | 2013-09-04 | 长兴电子材料（昆山）有限公司 | Dust-iron removing device for powder |
Non-Patent Citations (1)
| Title |
|---|
| 刘银等: "基于单片机的粉尘检测***的设计", 《煤矿机械》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699275A (en) * | 2014-11-24 | 2016-06-22 | 新乡天翼过滤技术检测有限公司 | Microparticle counting system using laser imaging and projection |
| CN105784552A (en) * | 2014-12-24 | 2016-07-20 | 周志斌 | Particle concentration sensor and particle concentration detection method |
| CN105784552B (en) * | 2014-12-24 | 2019-08-06 | 周志斌 | Particle concentration detection method |
| CN107036949A (en) * | 2017-05-19 | 2017-08-11 | 武汉四方光电科技有限公司 | Dust concentration detection means and provided with dust concentration detection means air cleaning facility |
| CN108760687A (en) * | 2018-04-08 | 2018-11-06 | 深圳市天环通科技有限公司 | Laser light scattering cooking fume instrument |
| CN108760687B (en) * | 2018-04-08 | 2021-08-17 | 深圳市天得一环境科技有限公司 | Laser scattering oil fume monitor |
| CN112748051A (en) * | 2020-12-23 | 2021-05-04 | 天津智易时代科技发展有限公司 | Negative pressure type oil smoke probe and detection method thereof |
| CN114018770A (en) * | 2021-11-23 | 2022-02-08 | 辽宁工程技术大学 | Multifunctional dust detection device |
| CN114018770B (en) * | 2021-11-23 | 2024-01-23 | 辽宁工程技术大学 | Multifunctional dust detection device |
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Application publication date: 20140226 |