CN205175881U - Viscidity particulate matter consistency transmitter - Google Patents
Viscidity particulate matter consistency transmitter Download PDFInfo
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- CN205175881U CN205175881U CN201520943052.2U CN201520943052U CN205175881U CN 205175881 U CN205175881 U CN 205175881U CN 201520943052 U CN201520943052 U CN 201520943052U CN 205175881 U CN205175881 U CN 205175881U
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Abstract
The utility model belongs to the technical field of oil -smoke testing equipment, concretely relates to viscidity particulate matter consistency transmitter. Including the scattered light measuring chamber, set up sample gas parameter measurement rooms such as sample gas mass velocity, hygrometry, atmospheric pressure, temperature at scattered light measuring chamber front end, set up the sample gas hand -hole before the sample gas parameter measurement room, measure the locular wall at the scattered light and set up collector lens, set up photosensitive measurement element in the condensing lens focus, set up the extinction room on one side of the room laser outgoing of scattered light power measurement. The collimated beam of laser instrument transmission gets into the measuring chamber and is surveyed gas and crosses and produce the light scattering and converted into the photocurrent by condensing lens gathering back by light -sensitive element and measure after stray light is eliminated to the diaphragm, the light beam of transmission gets into the extinction room and carries out the extinction, sets up sheath gas hand -hole in diaphragm, condensing lens, extinction room, and is clean with clean sheath gas protecting measuring room optical device surface and light path, guarantees measurement accuracy in extension washing maintenance period.
Description
Technical field
The utility model belongs to oil smoke checkout equipment technical field, is specifically related to a kind of sticky particle substrate concentration sensor.
Background technology
It is the main source causing urban air pollution that catering trade produces a large amount of oil smoke in cooking process.Atmosphere pollution of its discharge is mainly gas, liquid and consolidates the gasoloid of three phase compositions, wherein containing edible oil and food volatile matter at high temperature, the oxidation of edible oil and food, cracking, hydrolysis and the aldehydes, ketone, paraffinic and the product such as chain alkene, palycyclic aromatic that are formed, composition is very complicated.The particle diameter of oil smoke liquid-solid phase particle is generally less than l0 μm, and stickability is strong, and major part is water insoluble, and polarity is little.That studies kitchen fume along with each research institution gos deep into, and kitchen fume more and more causes the extensive concern of people to the harm of human body.
Along with the raising of people's living standard, enriching of material, catering industry obtains and develops fast, but thing followed oil smoke of catering industry discharge pollution on the environment, the complaint suffered that disturbs residents also causes increasing concern, become the new problem of environment supervision, therefore strengthen the supervision of oil smoke of catering industry discharge very urgent.The oil smoke sampling specified in GB18483-2001 " cooking fume emission standard (the trying) " appendix A that State Environmental Protection Administration promulgates and analytical approach are the sampling of on-the-spot stainless steel metal filter cylinder, and laboratory infrared spectrophotometer analyzes (abbreviation National Standard Method).National Standard Method sample need take back lab analysis, and monitoring periods is long, costly, complex steps, on-the-spot test conditional request be high, and the ageing extreme difference of Monitoring Data, is difficult to the needs meeting oil smoke of catering industry supervision and check and on-site law-enforcing monitoring.
Utility model content
For overcoming the defect existing for prior art, the utility model provides a kind of sticky particle substrate concentration sensor, can solve the problem.
The utility model will solve the technical scheme that its technical matters adopts: design a kind of sticky particle substrate concentration sensor, comprise scattered light measuring chamber, light room, in scattered light measuring chamber front end, sample gas parameter measurement room is set, sample gas hand-hole is set before sample gas parameter measurement room, measure locular wall at scattered light and collector lens is set, collector lens is provided with measurement lens combination, at the photosensitive measuring sensor of collector lens focal point settings and signal processing circuit board, in laser emitting side, scattered light power measurement room, delustring room is set, the incident side of laser beam in scattered light power measurement room arranges more than one diaphragm, before diaphragm, laser generator is set, laser generator is provided with laser lens group, laser generator connects delustring room by diaphragm micropore, at the indoor collector lens of described light, diaphragm, delustring room place, sheath gas air admission hole is set.
Preferably, lid is set between described scattered light measuring chamber and signal processing circuit board, lid arranges airtight silica gel plate or tree lace, except sample gas air intake opening, sheath gas entrance can with ambient atmos UNICOM except, sensor entirety is airtight.
Preferably, described laser instrument selects semiconductor laser, for the diesel engine vent gas that particle size is less than normal, the waste gas of the particle size such as high-temperature oil smoke particle diameter less than normal can adopt short wavelength (such as 405nm) Several problems of evaluating laser beam quality of unstable, visible ray (such as 650nm) semiconductor laser can be selected for particle size such as oil smoke of catering industry bigger than normal waste gas, for the such as pitch that particle diameter is huge, paraffin flue dust can select near infrared (such as 1550nm) semiconductor laser, the selection rationality of laser wavelength directly affects can survey particle diameter limit and measuring accuracy.
Preferably, described photosensor signal treatment circuit adopts two road signal transacting, luminous flux scattered signal is obtained with integrated signal, thus obtain particle total surface area information, single particle scattered light pulse height is obtained with differential signal pulse height, thus obtain particle size information, from total surface area information and domain size distribution information is counter pushes away particle object volume concentrations information, reoffer proportion and convert and obtain particle quality concentration information.
Preferably, in described sample gas parameter measurement room, miniature air pressure, temperature, relative humidity sensing device are set, by the particle quality concentration data that measured sample gas temperature, air pressure, relative humidity pa correction light scattering method record, thus obtain the particle mass concentration under mark condition.
The beneficial effect that the utility model has is:
1、。This is suitable for novel employing light scattering principle, laser beam after collimation and detected sample gas are crossed, the particle of laser beam and sample entraining air stream intersection produces light scattering, light activated element exports corresponding photo-signal after receiving scattered light, signal processing circuit adopts two road signal transacting, obtain luminous flux scattered integrated signal and differential signal respectively, after converting, obtain particle quality concentration information.By arranging miniature mass velocity, air pressure, temperature, relative humidity sensing device in described sample gas parameter measurement room, by the particle quality concentration data that the measured parameters revision light scattering method such as sample gas temperature, air pressure, relative humidity records, thus obtain the particle mass concentration under mark condition.Traditional infrared spectrophotometer detects oil smoke has then needed " spot sampling " and a series of process such as laboratory " cleaning ", " constant volume ", " infrared spectrophotometric determination ", " manual conversion ", whole process needs manual operations, need to submit testing result to one to several working day, adopt the utility model can build the portable or online sticky particle thing pollution source checkout equipment that temporal resolution reaches millisecond order of magnitude easily, simultaneously can by accuracy of detection from 0.1mg/m
3the order of magnitude is promoted to 0.001mg/m
3the order of magnitude.
2, the utility model measuring object is the mass concentration of oil smoke total particulate, surveying oil process from traditional ir spectrophotometry, only to detect grease concentration different, testing result of the present utility model contains other mass concentration that is solid-state and fluid contaminants of non-oil lipid, further comprises other volatile contaminants such as the VOCs adsorbed by particle, its measurement result is more close with actual particle contamination degree.For the particle object that the traditional infrared such as paraffin, pitch spectrophotometric method cannot be measured, the accurate testing result suitable with common oil smoke also can be provided.。
3, the utility model avoids the pollution of sticky particle thing to sensor sensing surface by sheath device of air, therefore be particularly suitable for detecting sticky particle thing dusty gas, also be applicable to detecting the Particulate Pollution gas of other type simultaneously, especially possessing when detecting all kinds of Particulate Pollution gases of high concentration the advantage preventing inner Sensitive Apparatus surface contamination, the clean and maintenance cycle longer than common same type of sensor can be obtained.
4, the utility model is provided with the sample gas parameter measurement room comprising " mass velocity, air pressure, temperature, relative humidity sensor " in described scattered light measuring chamber proximal most position, accurately can detect data by calibrating optical, thus the particle mass concentration under Real-time Obtaining mark condition.Traditional infrared spectrophotometer cannot provide accurate correction.
5, the utility model structure is simple, is easy to make, and is suitable for suitability for industrialized production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Reference numeral: 1, scattered light measuring chamber, 2, signal processing circuit, 3, lid, 4, airtight silica gel plate, 5, collector lens, 6, sheath gas air admission hole, 7, sample gas hand-hole, 8, light room, 9, diaphragm, 10, scattered light power measurement room, 11, diaphragm micropore, 12, laser generator, 13, delustring room, 14, laser lens group, 15, measure lens combination, 16, sample gas parameter measurement room, 17, sheath pore, 18 sheath gas main entrances.
Embodiment
1, a kind of sticky particle substrate concentration sensor as described in Figure 1, comprise scattered light measuring chamber 1, light room 8, in scattered light measuring chamber 1 front end, sample gas parameter measurement room 16 is set, sample gas hand-hole 7 is set before sample gas parameter measurement room 16, at scattered light measuring chamber 1 wall, collector lens 5 is set, collector lens 5 is provided with measures lens combination 15, at the photosensitive measuring sensor of collector lens focal point settings and signal processing circuit board 2, in laser emitting side, scattered light power measurement room 1, delustring room 13 is set, the incident side of laser beam in scattered light power measurement room 10 arranges more than one diaphragm 9, laser generator 12 was set before diaphragm, laser generator 12 is provided with laser lens group 14, laser generator 12 connects delustring room 13 by diaphragm micropore 11, collector lens 5 in described light room 8, diaphragm 9, delustring room 13 place arranges sheath gas air admission hole 6, between described scattered light measuring chamber 1 and signal processing circuit board 2, lid 3 is set, lid 3 arranges airtight silica gel plate 4, lid, airtight silica gel plate is provided with sheath pore 17, sheath gas main entrance 18, except sample gas hand-hole 7, sheath gas air admission hole 6 can with ambient atmos UNICOM outside, sensor entirety is airtight, semiconductor laser generator selected by described laser generator, described semiconductor laser generator can be short wavelength's Blue Semiconductor Devices laser generator, visible ray semiconductor laser generator or near infrared semiconductor laser generator, described signal processing circuit 2 adopts two road signal transacting, in described sample gas parameter measurement room 16, miniature air pressure is set, temperature, relative humidity sensing device.
It should be noted last that: above embodiment is the unrestricted the technical solution of the utility model in order to explanation only, although be described in detail the utility model with reference to above-described embodiment, will be understood by those skilled in the art that: still can modify to the utility model or equivalent replacement, and not departing from any modification or partial replacement of spirit and scope of the present utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (5)
1. a sticky particle substrate concentration sensor, it is characterized in that: comprise scattered light measuring chamber, light room, in scattered light measuring chamber front end, sample gas parameter measurement room is set, sample gas hand-hole is set before sample gas parameter measurement room, measure locular wall at scattered light and collector lens is set, collector lens is provided with measurement lens combination, at the photosensitive measuring sensor of collector lens focal point settings and signal processing circuit board, in laser emitting side, scattered light power measurement room, delustring room is set, the incident side of laser beam in scattered light power measurement room arranges more than one diaphragm, before diaphragm, laser generator is set, laser generator is provided with laser lens group, laser generator connects delustring room by diaphragm micropore, at the indoor collector lens of described light, diaphragm, delustring room place, sheath gas air admission hole is set.
2. a kind of sticky particle substrate concentration sensor according to claim 1, it is characterized in that: between described scattered light measuring chamber and signal processing circuit board, lid is set, lid arranges airtight silica gel plate, lid, airtight silica gel plate are provided with sheath pore, sheath gas main entrance, except sample gas hand-hole, sheath gas air admission hole can with ambient atmos UNICOM except, sensor entirety is airtight.
3. a kind of sticky particle substrate concentration sensor according to claim 1, it is characterized in that: semiconductor laser generator selected by described laser generator, described semiconductor laser generator can be short wavelength's Blue Semiconductor Devices laser generator, visible ray semiconductor laser generator or near infrared semiconductor laser generator.
4. a kind of sticky particle substrate concentration sensor according to claim 1, is characterized in that: described signal processing circuit adopts two road signal transacting.
5. a kind of sticky particle substrate concentration sensor according to claim 1, is characterized in that: in described sample gas parameter measurement room, arrange miniature air pressure, temperature, relative humidity sensing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520943052.2U CN205175881U (en) | 2015-11-23 | 2015-11-23 | Viscidity particulate matter consistency transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520943052.2U CN205175881U (en) | 2015-11-23 | 2015-11-23 | Viscidity particulate matter consistency transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205175881U true CN205175881U (en) | 2016-04-20 |
Family
ID=55739859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520943052.2U Expired - Fee Related CN205175881U (en) | 2015-11-23 | 2015-11-23 | Viscidity particulate matter consistency transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205175881U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387492A (en) * | 2017-11-13 | 2018-08-10 | 苏州宏瑞净化科技有限公司 | Photometer |
| CN108387491A (en) * | 2017-11-13 | 2018-08-10 | 苏州宏瑞净化科技有限公司 | Photometer sensor device |
| CN109655388A (en) * | 2019-01-23 | 2019-04-19 | 北京雪迪龙科技股份有限公司 | Light scattering device, measuring concentration of granules in certain system and measurement method |
| CN110231261A (en) * | 2019-05-10 | 2019-09-13 | 武汉四方光电科技有限公司 | A kind of particle concentration detection device |
-
2015
- 2015-11-23 CN CN201520943052.2U patent/CN205175881U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387492A (en) * | 2017-11-13 | 2018-08-10 | 苏州宏瑞净化科技有限公司 | Photometer |
| CN108387491A (en) * | 2017-11-13 | 2018-08-10 | 苏州宏瑞净化科技有限公司 | Photometer sensor device |
| CN109655388A (en) * | 2019-01-23 | 2019-04-19 | 北京雪迪龙科技股份有限公司 | Light scattering device, measuring concentration of granules in certain system and measurement method |
| CN110231261A (en) * | 2019-05-10 | 2019-09-13 | 武汉四方光电科技有限公司 | A kind of particle concentration detection device |
| CN110231261B (en) * | 2019-05-10 | 2024-03-26 | 四方光电股份有限公司 | Particulate matter concentration detection device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20201123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |