CN209372641U - A kind of oil smoke and particle concentration detection device - Google Patents
A kind of oil smoke and particle concentration detection device Download PDFInfo
- Publication number
- CN209372641U CN209372641U CN201822113157.1U CN201822113157U CN209372641U CN 209372641 U CN209372641 U CN 209372641U CN 201822113157 U CN201822113157 U CN 201822113157U CN 209372641 U CN209372641 U CN 209372641U
- Authority
- CN
- China
- Prior art keywords
- detection device
- inner cylinder
- oil smoke
- particle concentration
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model relates to technical field of environmental detection, in particular to a kind of oil smoke and particle concentration detection device, by the way that inner cylinder is arranged, outer cylinder and exhaust fan, make to form stable airflow path, laser generator is set in airflow channel, optical detection device is set between outer cylinder and inner cylinder, the photosensitive sensor of optical detection device extends in inner cylinder, when there is under test gas circulation in airflow channel, the light that laser generator issues can be scattered by the suspended particulate under test gas, the concentration of suspended particles under test gas is determined by scattered light intensity that photosensitive sensor receives.By the above-mentioned means, the utility model embodiment can in real time in effective detection gas suspended particulate concentration.
Description
Technical field
The utility model embodiment is related to technical field of environmental detection, examines more particularly to a kind of oil smoke and particle concentration
Survey device.
Background technique
Total suspension oil smoke and particulate matter are a general important contamination indexes in air quality assessment.Its main source
Dust, building and road fugitive dust, wind-drifting sand and the gas generated in the flue dust that is generated when fuel combustion, process of manufacture
The corresponding salt particle that state pollutant generates in air by complicated physical-chemical reaction.It is total outstanding in China some areas
Oil slick cigarette and Particulate Pollution are more serious.Total suspension oil smoke and particulate matter can be divided into an oil smoke and particulate matter and secondary oil smoke
And particulate matter.Oil smoke and particulate matter are to be discharged into the atmosphere to directly contribute pollution by natural pollution source and man-made pollution source
Substance, such as: dust, burning and the industrial fumes and kitchen fumes that wind raises.Secondary aerosol species are by certain Atmospheric Chemistry mistakes
Particle caused by journey, such as: Sulphur Dioxide generates sulfate.Since TSP concentration influences human body and environment
It is very big, therefore corresponding oil smoke and particle concentration detection device are also particularly important.
Summary of the invention
For the product requirement of the prior art, the main purpose of the utility model embodiment be to provide a kind of oil smoke and
Grain object concentration detection apparatus, realizes the concentration of suspended particulate in effective detection gas.
In order to solve the above technical problems, the technical solution that the utility model embodiment uses is: providing a kind of oil smoke
And particle concentration detection device characterized by comprising inner cylinder is provided with the first air inlet, the first gas outlet, detection mouth
And airflow channel, first air inlet, the first gas outlet, detection mouth are connected to the airflow channel；Outer cylinder is provided with
Two air inlets, air inlet air flue and the second gas outlet, the outer sleeve be set to the inner cylinder outside, second air inlet and first into
Port is connected to the air inlet air flue, and second air inlet and the first air inlet shift to install, second outlet
Mouth is connected to first gas outlet；Laser generator is set in the airflow channel, is fixedly connected with the inner cylinder, position
In one end in the inner cylinder close to first air inlet；Optical detection device is set between the outer cylinder and the inner cylinder,
And it is connected to the detection mouth；Top cover is connect with the outer cylinder and the inner cylinder respectively.
Optionally, the air inlet air flue is the annular groove opened up on the inner cylinder side wall, and first air inlet is located at
The slot bottom of the annular groove；The oil smoke and particle concentration detection device further include filter screen device, the filter screen device
It is sheathed on the annular groove.
Optionally, the outer surface of the inner cylinder is additionally provided with fixing groove, and the detection mouth is located at the slot bottom of the fixing groove.
Optionally, the oil smoke and particle concentration detection device further include the first sealing ring, the second sealing ring and third
Sealing ring；The outer surface of the inner cylinder is additionally provided with the first seal groove, the second seal groove and third seal groove, and described
It is close that one sealing ring, the second sealing ring and third sealing ring are limited in first seal groove, the second seal groove and third
Seal slot, and connect with the inner surface of the outer cylinder.
Optionally, first sealing ring, the second sealing ring and third sealing ring are flexible rubber ring.
Optionally, the optical detection device includes photosensitive sensor, circuit board, silica gel bottom plate and cable, described photosensitive
Sensor is set in the one side of the circuit board, and is connect with the detection mouth of the inner cylinder, the another side peace of the circuit board
Loaded on the silica gel bottom plate, the silica gel bottom plate is contained in the fixing groove, is fixedly connected with the inner cylinder, the cable
Line is connect with circuit board.
Optionally, the inner cylinder is additionally provided with wire guide, and wire guide is for being arranged conducting wire, and the laser generator is by leading
Line is connect with the circuit board.
Optionally, the oil smoke and particle concentration detection device further include fixed part, and the fixed part is towards described outer
One surface of cylinder is provided with abutting slot；The fixed part is provided centrally with through-hole；The outer cylinder is close to second gas outlet
One end is connected to the fixed part, and is contained in the abutting slot, and the outer cylinder is fixedly connected with the fixed part.
Optionally, the length of the outer cylinder is greater than the length of the inner cylinder, and first gas outlet is located at the inner cylinder one
The end at end, the detection mouth are located at the side wall of the inner cylinder, and second gas outlet and the second air inlet are respectively positioned on described outer
The side wall of cylinder.
Optionally, the oil smoke and particle concentration detection device further include exhaust fan；The exhaust fan is set to described
First gas outlet.
The beneficial effect of the utility model embodiment is: by setting inner cylinder, outer cylinder and exhaust fan, making to form stable sky
Laser generator is arranged in airflow channel in airflow channel, and optical detection device is arranged between outer cylinder and inner cylinder, works as airflow channel
In when having under test gas circulation, the light that laser generator issues can be scattered by the suspended particulate under test gas, by photosensitive
The scattered light intensity that sensor receives determines the concentration of suspended particles under test gas, finally achievable oil smoke and particulate matter
Concentration detection apparatus is to the oil smoke of moving air and the real-time detection of particle concentration.
Detailed description of the invention
It, below will be to tool in order to illustrate more clearly of the utility model specific embodiment or technical solution in the prior art
Body drawings that need to be used in the embodiment or the prior art description is briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio
Fig. 1 is the structural schematic diagram of a kind of oil smoke of the utility model and particle concentration detection device embodiment；
Fig. 2 is the explosive view of a kind of oil smoke of the utility model and particle concentration detection device embodiment；
Fig. 3 is the signal of the utility model embodiment oil smoke and particle concentration detection device detection air middle particle concentration
Figure.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and it is originally practical to cannot be used as a limitation limitation
Novel protection scope.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this reality
The ordinary meaning understood with novel one of ordinary skill in the art.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.The meaning of " plurality " is two in the description of the present invention,
More than, unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In this application unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Fig. 1 and Fig. 2 are please referred to, oil smoke and particle concentration detection device include: inner cylinder 10, outer cylinder 20, filter screen 30, swash
Optical generator 40, the first sealing ring 601, the second sealing ring 602, third sealing ring 603, exhaust fan 70, is fixed at detection device 50
Portion 80, the first screw 11, the second screw 12 and top cover 100.
The first air inlet 101, the first gas outlet 102, airflow channel 103, detection mouth 104, annular are provided on inner cylinder 10
Slot 105, fixing groove 106, the first screw hole 107, the second screw hole 108 and conducting wire perforation 109, wherein the first air inlet 101,
First gas outlet 102 and detection mouth 104 are connected to airflow channel 103, and annular groove 105 and fixing groove 106 are located at inner cylinder 10
Outer surface, the first air inlet 101 are set to the bottom of annular groove 105, and detection mouth 104 is set in fixing groove 106, wire guide
109 pass through the side wall of inner cylinder 10, and one end of wire guide 109 and fixing groove 106 are connected, and direction is arranged in the other end of wire guide 109
In laser generator 40.
The second air inlet 201, the second gas outlet 202, the perforation of air inlet air flue 203, first 204 and the are provided on outer cylinder 20
Two perforation 205, wherein the second air inlet 201 and the second gas outlet 202 are connected to air inlet air flue 203.
It may be mentioned that the first air inlet 101 is to shift to install in the second air inlet 201, prevent ambient direct
Enter from the first air inlet 101 and inject in the second air inlet 201, interference of the ambient to testing result can be prevented.
Filter screen device 30 includes filter screen 301 and fastening cushion rubber 302, is set to the first air inlet 101 and the second air inlet
It between mouth 201, is sheathed on annular groove 105, fastening cushion rubber 302 made for being fastenedly connected filter screen 301 and inner cylinder 10
Strainer 301 and outer cylinder 20 generate one section of space interval, filter screen device 30 for filtering air in larger impurity particle, avoid in
The testing result in portion is influenced by large granular impurity, due to there is one section of space interval between filter screen 301 and outer cylinder 20, i.e., outer
Portion's air can be entered in the first air inlet 101 of inner cylinder 10 by the entire annular surface of filter screen 301.
Laser generator 40 is set in airflow channel 103, can be fastenedly connected by the modes such as screw and inner cylinder 10, is swashed
Optical generator 40 is used to emit the air stream 9 in laser irradiation airflow channel 103, when laser irradiation to the oil smoke in air stream 9
And it can be scattered when particulate matter 91.
Optical detection device 50 includes circuit board 501 and the photosensitive sensor 502 being set on circuit board, further includes silica gel
Bottom plate 503 and cable 504, optical detection device 50 are set in fixing groove 106, and photosensitive sensor 502 passes through detection mouth 104
It is connected to airflow channel 103, photosensitive sensor 502 is used to receive the laser signal of scattering and is converted to electric signal, cable 504
Electric signal can be sent out to external other equipment, insulation cushion rubber 5021, photosensitive sensor are additionally provided on photosensitive sensor 502
502 are connect by the cushion rubber 5021 that insulate with inner cylinder 10, and insulating cement encloses the effect of isolation air and insulation.
Laser generator 40 is connect by conducting wire (not shown) with circuit board 501, and wherein conducting wire (not shown) passes through inner cylinder
Wire guide 109 in 10, wherein wire guide 109 is not to be connected with airflow channel 103, and be not connected with air inlet air flue 203.
First seal groove 1011, the second seal groove 1012 and third seal groove 1013 are set to the outer surface of inner cylinder 10,
It is respectively used to the first sealing ring 601 of installation, the second sealing ring 602 and third sealing ring 603, and the first sealing ring 601, second
Sealing ring 602 and third sealing ring 603 are abutted with the inner surface of outer cylinder 20, for being fixedly connected with inner cylinder 10 and outer cylinder 20, first
Sealing ring 601 is located at inner cylinder 10 close to one end of top cover 100, and the second sealing ring 602 is located at annular groove 105 and fixing groove 106
Between, third sealing ring 603 is between the first gas outlet 102 and fixing groove 106.It further illustrates, the first sealing ring 601,
Second sealing ring 602 and third sealing ring 603 can be flexible rubber ring, can be used for being fastenedly connected inner cylinder 10 and outer cylinder 20, and
It can play the role of completely cutting off air.
Exhaust fan 70 is set at the first air outlet 102, for extracting the air in airflow channel 103 out.
Fixed part 80 is provided with abutting slot 801, through-hole 802 and several screw holes 803, fixed part 80 and is located at outer cylinder 20
Lower section, in the abutting slot 801 that one end of the second gas outlet 202 is connected to fixed part 80, cable 504 can pass through outer cylinder 20
Through-hole 802 is pierced by, and screw hole 803 can be such that embodiment oil smoke and particle concentration detection device connect with external equipment.
Top cover 100 is fixedly connected in such a way that screw fastens with inner cylinder 10, and top cover 100 is connect with outer cylinder 20.
It, can be by top cover 100 and outer it can be understood that detent slot can be arranged in the end of outer cylinder 20 in some embodiments
Cylinder 20 abuts, while top cover 100 is fixedly connected by modes such as screws with inner cylinder 10.In further embodiments, top cover 100 with
It can also be connected in such a way that sealing ring is set between outer cylinder 20, sealing isolation air can be played the role of.
First screw 11 passes through the first perforation 204 and the first screw hole 107 is fixedly connected with inner cylinder 10 and outer cylinder 20 respectively；
Second screw 12 passes through the second perforation 205 and the second screw hole 108 is fixedly connected with inner cylinder 10 and outer cylinder 20 respectively.
Outer cylinder 20 is connected in the abutting slot 801 of fixed part 80 combined with Figure 1 and Figure 2, can be fixed by modes such as welding,
Inner cylinder 10 is installed in outer cylinder 20, is fixedly connected with inner cylinder 10 with outer cylinder 20 with modes such as screws, while cable 504 is from logical
Hole 802 is pierced by, and top cover 100 is installed on one end of inner cylinder 10, and is fixedly connected with outer cylinder 20.
In conjunction with Fig. 1, Fig. 2 and Fig. 3, in the utility model embodiment, when oil smoke and particle concentration detection device work,
Air stream 9 will enter from the second air inlet 201, after the filtration of filter screen 30, then by the first air inlet 101 into
Enter airflow channel 103, laser generator 40 is in running order at this time, and laser generator 40 issues laser irradiation in air stream 9
On, oil smoke and particulate matter 91 are contained in air stream 9, the fraction of laser light that laser generator 40 issues then can be by oil smoke and particulate matter 91
The reception of photosensitive sensor 502 is scattered to, when oil smoke and bigger particle concentration in air stream 9, then the laser intensity that is scattered
Also higher, while the laser signal that photosensitive sensor 502 receives is also more, on the contrary the oil smoke and particulate matter in air stream 9 are dense
Degree gets over hour, then the laser intensity scattered is also lower, while the laser signal that photosensitive sensor 502 receives is also fewer, i.e.,
The oil smoke and particle concentration in air stream 9, while exhaust fan are determined by laser signal that photosensitive sensor 502 receives
70 the air stream 9 in airflow channel 103 can be discharged, and form ventilated environment, and airflow channel 103 has the air constantly to circulate, together
When photosensitive sensor 502 constantly receive laser signal, i.e., photosensitive sensor 502 can dissipating with real-time detection to moving air
It penetrates optical signal namely the present embodiment oil smoke and particle concentration detection device can be with the oil smoke and particle of real-time detection moving air
Object concentration.It is to be appreciated that: oil smoke and particle concentration detection device can detecte the concentration of oil smoke in air, also can detecte
The concentration of particulate in air.
The utility model has the beneficial effects that making to form stable air circulation by setting inner cylinder, outer cylinder and exhaust fan
Laser generator is arranged in road in airflow channel, and optical detection device is arranged between outer cylinder and inner cylinder, when needing in airflow channel
When surveying gas circulation, the light that laser generator issues can be scattered by the suspended particulate under test gas, pass through photosensitive sensor
The scattered light intensity received determines the concentration of suspended particles under test gas, finally achievable oil smoke and particle concentration inspection
Device is surveyed to the oil smoke of moving air and the real-time detection of particle concentration.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type, should all cover in the claim of the utility model and the range of specification.
Especially, as long as structural conflict is not present, items technical characteristic mentioned in the various embodiments can combine in any way
Get up.The utility model is not limited to specific embodiment disclosed herein, but including falling within the scope of the appended claims
All technical solutions.
Claims (10)
1. a kind of oil smoke and particle concentration detection device characterized by comprising
Inner cylinder is provided with the first air inlet, the first gas outlet, detection mouth and airflow channel, first air inlet, the first outlet
Mouth, detection mouth are connected to the airflow channel；
Outer cylinder is provided with the second air inlet, air inlet air flue and the second gas outlet, and the outer sleeve is set to outside the inner cylinder, described
Second air inlet and the first air inlet are connected to the air inlet air flue, and second air inlet and the dislocation of the first air inlet
Setting, second gas outlet is connected to first gas outlet；
Laser generator is set in the airflow channel, is fixedly connected with the inner cylinder, is located in the inner cylinder close to described
One end of first air inlet；
Optical detection device is set between the outer cylinder and the inner cylinder, and is connected to the detection mouth；
Top cover is connect with the outer cylinder and inner cylinder respectively.
2. oil smoke according to claim 1 and particle concentration detection device, which is characterized in that
The air inlet air flue is the annular groove opened up on the inner cylinder side wall, and first air inlet is located at the annular groove
Slot bottom；
The oil smoke and particle concentration detection device further include filter screen device, and the filter screen device is sheathed on the annular
Slot.
3. oil smoke according to claim 2 and particle concentration detection device, which is characterized in that
The outer surface of the inner cylinder is additionally provided with fixing groove, and the detection mouth is located at the slot bottom of the fixing groove.
4. oil smoke according to claim 3 and particle concentration detection device, which is characterized in that
The oil smoke and particle concentration detection device further include the first sealing ring, the second sealing ring and third sealing ring；
The outer surface of the inner cylinder is additionally provided with the first seal groove, the second seal groove and third seal groove, and described first
Sealing ring, the second sealing ring and third sealing ring are limited in first seal groove, the second seal groove and third sealing
Ring recess, and connect with the inner surface of the outer cylinder.
5. oil smoke according to claim 4 and particle concentration detection device, which is characterized in that
First sealing ring, the second sealing ring and third sealing ring are flexible rubber ring.
6. oil smoke according to claim 3 and particle concentration detection device, which is characterized in that
The optical detection device includes photosensitive sensor, circuit board, silica gel bottom plate and cable, and the photosensitive sensor is set to
It in the one side of the circuit board, and is connect with the detection mouth of the inner cylinder, the another side of the circuit board is installed on the silica gel
On bottom plate, the silica gel bottom plate is contained in the fixing groove, is fixedly connected with the inner cylinder, the cable and the circuit
Plate connection.
7. oil smoke according to claim 6 and particle concentration detection device, which is characterized in that
The inner cylinder is additionally provided with wire guide, and wire guide passes through conducting wire and the electricity for conducting wire, the laser generator to be arranged
The connection of road plate.
8. oil smoke according to claim 1 and particle concentration detection device, which is characterized in that
The oil smoke and particle concentration detection device further include fixed part, and the fixed part is set towards a surface of the outer cylinder
It is equipped with abutting slot；
The fixed part is provided centrally with through-hole；
The outer cylinder is connected to the fixed part close to one end of second gas outlet, and is contained in the abutting slot, described
Outer cylinder is fixedly connected with the fixed part.
9. oil smoke according to claim 1 and particle concentration detection device, which is characterized in that
The length of the outer cylinder is greater than the length of the inner cylinder, and first gas outlet is located at the end of described inner cylinder one end, institute
The side wall that detection mouth is located at the inner cylinder is stated, second gas outlet and the second air inlet are respectively positioned on the side wall of the outer cylinder.
10. oil smoke according to claim 1 and particle concentration detection device, which is characterized in that
The oil smoke and particle concentration detection device further include exhaust fan；
The exhaust fan is set to first gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822113157.1U CN209372641U (en) | 2018-12-15 | 2018-12-15 | A kind of oil smoke and particle concentration detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822113157.1U CN209372641U (en) | 2018-12-15 | 2018-12-15 | A kind of oil smoke and particle concentration detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209372641U true CN209372641U (en) | 2019-09-10 |
Family
ID=67832943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822113157.1U Active CN209372641U (en) | 2018-12-15 | 2018-12-15 | A kind of oil smoke and particle concentration detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209372641U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111402346A (en) * | 2020-02-27 | 2020-07-10 | 辽宁百思特达半导体科技有限公司 | Intelligent building system based on BIM and management method thereof |
| CN112198095A (en) * | 2020-09-27 | 2021-01-08 | 山东诺方电子科技有限公司 | Particle sensor sheath gas protective structure |
| CN114018775A (en) * | 2021-11-04 | 2022-02-08 | 无锡锐丰源环境科技有限公司 | Online monitoring device for mass concentration of oil smoke particles |
-
2018
- 2018-12-15 CN CN201822113157.1U patent/CN209372641U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111402346A (en) * | 2020-02-27 | 2020-07-10 | 辽宁百思特达半导体科技有限公司 | Intelligent building system based on BIM and management method thereof |
| CN112198095A (en) * | 2020-09-27 | 2021-01-08 | 山东诺方电子科技有限公司 | Particle sensor sheath gas protective structure |
| CN112198095B (en) * | 2020-09-27 | 2022-11-01 | 山东诺方电子科技有限公司 | Particle sensor sheath gas protective structure |
| CN114018775A (en) * | 2021-11-04 | 2022-02-08 | 无锡锐丰源环境科技有限公司 | Online monitoring device for mass concentration of oil smoke particles |
| CN114018775B (en) * | 2021-11-04 | 2024-01-12 | 无锡锐丰源环境科技有限公司 | Online monitoring device for oil smoke particle mass concentration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209372641U (en) | A kind of oil smoke and particle concentration detection device | |
| CN1211764C (en) | Improvements relating to smoke detectors particularly ducted smoke detectors | |
| CN101135630B (en) | Particle detector and the method improvement and smoke detector | |
| Sawicki et al. | The quantitative composition of air pollution source effluents in terms of aza heterocyclic compounds and polynuclear aromatic hydrocarbons | |
| CN103606333B (en) | Low-pressure plane cargo space fire experiment simulation device | |
| CN103837451A (en) | Dust sensor for on-line monitoring of dust concentration | |
| KR102149810B1 (en) | multi-air quality measurement device using a drone | |
| CN203644291U (en) | Low-pressure airplane cargo bay fire experiment simulation device | |
| KR102331259B1 (en) | Measuring Device of Fine Particles | |
| CN106908364A (en) | Mining intrinsic safety type dust sensing device based on light scattering method | |
| CN207133092U (en) | Natural haze gas collection concentration experimental provision | |
| CN106781206B (en) | A kind of intelligent distribution box flue gas monitoring warning device | |
| CN108535154A (en) | A kind of detection device and method of smoke secondary pollutant | |
| CN207570978U (en) | A kind of detection module and detecting instrument | |
| CN214896341U (en) | Sulfur dioxide gas concentration control device | |
| CN104502313B (en) | Novel optical platform of transmission type smoke meter | |
| CN203785785U (en) | Illumination test equipment | |
| CN210269527U (en) | Oil smoke monitoring facilities with separation air chamber | |
| CN211927622U (en) | Portable oil smoke detector | |
| CN107543255A (en) | A kind of air quality detecting device | |
| CN106198333A (en) | A kind of soot emissions continuous monitor system | |
| CN205786211U (en) | Particle analyte detection device in a kind of air | |
| CN208206729U (en) | A kind of fan-free laser class dust sensor | |
| CN207350713U (en) | Intelligent fresh air controller | |
| CN216771505U (en) | Infrared remote sensing monitoring and analyzing device for concentration of polluted gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |