CN206235533U - A kind of gas path device for the preceding ultralow flue dust monitor of scattering - Google Patents
A kind of gas path device for the preceding ultralow flue dust monitor of scattering Download PDFInfo
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- CN206235533U CN206235533U CN201621325858.6U CN201621325858U CN206235533U CN 206235533 U CN206235533 U CN 206235533U CN 201621325858 U CN201621325858 U CN 201621325858U CN 206235533 U CN206235533 U CN 206235533U
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- heat
- contiguous block
- flue dust
- scattering
- laser
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Abstract
A kind of gas path device for the preceding ultralow flue dust monitor of scattering, it is characterised in that constituted by air chamber, heat-insulated contiguous block, laser bench, connection component, four-way valve plate and jet pump can be heated.Jet pump uses double layer design, compressed air to enter middle gap layer by entrance, and inner layer pipe is entered by the through hole reserved under pressure promotion, is projected from outlet, causes negative pressure tractive force, smoke sample is entered gas circuit from sampling feeler lever, realizes the collection of sample.The utility model has the advantages that, being switched by simple valve body can just realize blowback cleaning function, laser bench convenient disassembly, be easy to clean eyeglass, and overall gas circuit structure design is simple, easy for installation, it is easy to operate.
Description
Technical field
The utility model belongs to monitoring technical field, specifically related to a kind of gas circuit for the preceding ultralow flue dust monitor of scattering
Device.
Background technology
Flue dust be coal-fired and industrial processes in the solid particulate matter that emits, its main component is titanium dioxide
Silicon, aluminum oxide, iron oxide, calcium oxide and the carbon particle etc. without burning, 0.5-5 microns of soot dust granule thing can with breathe into
Enter human body, trigger respiratory disease, do harm to huamn body.Country's flue dust monitor nearly 80% uses light scattering method at present, and
Wherein again based on back scattering light channel structure, with industrial production and the raising of environmental protection requirement, to the continuous prison of flue dust
Survey proposes requirement higher, and the sensitivity of back scattering smoke dust monitor and resolution ratio cannot meet supervision demand, and preceding
Several orders of magnitude are higher by than back scattering light path light intensity to scattering light path, the monitoring of low concentration soot dust granule thing can be increased substantially
Sensitivity and the degree of accuracy, meet the market demand.
The content of the invention
The utility model devises a kind of gas path device that can be used for the preceding ultralow flue dust monitor of scattering, is installed on ultralow cigarette
The inside cavity of dirt monitor, by glass air chamber is built-in, detachable laser bench, four-way valve plate and jet is pump integrated sets
Meter, using jet flow negative pressure principle, realizes sample collection and blowback cleaning function, is effectively reduced light interference, improves ultralow cigarette
The sensitivity and the degree of accuracy of dirt monitor, and simple structure, are easy to safeguard.
The utility model proposes technical scheme be, a kind of gas path device for the ultralow flue dust monitor of preceding scattering, by
Air chamber, laser bench, heat-insulated contiguous block, connection component, four-way valve plate and jet pump can be heated to constitute.
Air chamber can be heated to be made up of glass air chamber, light-receiving seat, electric boiling plate, for testing sample provides detection space, together
Receptions of the Shi Shixian to scattering light；Laser bench inside is equipped with level crossing and laser, and level crossing is used to completely cut off flue dust；Heat-insulated connection
Block is used to connect that air chamber and laser bench can be heated, and is connected with four-way valve plate by connecting component；Connection component is by connection frame and pressure
Piece is constituted, and is connected by screw, for the connecting path for fixing heat-insulated contiguous block with connect frame；Four-way valve plate is connected respectively
Frame, jet pump, baroceptor and blowback air；Jet pump uses double layer design, compressed air to enter middle gap layer by entrance,
Inner layer pipe is entered by the through hole reserved under pressure promotion, is projected from outlet, cause negative pressure tractive force, make smoke sample from adopting
Sample feeler lever enters gas circuit, realizes the collection of sample.
Air chamber can be heated as described above glass air chamber main body is built in light-receiving seat, reduce ambient to laser
The interference of detection, electric boiling plate is installed on light-receiving seat outer wall, realizes the heating and dehumidification to fume gases.
Heat-insulated connection stock material as described above is polytetrafluoroethylene (PTFE), effectively reduces influence of the heat transfer to laser, even
Connect block two ends and bottom and be provided with hole position, connect glass air chamber, laser bench respectively and connect frame.
Laser bench as described above is used to install laser, and its front end is used to completely cut off fume gases, laser equipped with level crossing
Seat screw thread is connected with heat-insulated contiguous block, convenient to dismantle and safeguard.
Connection component as described above is made up of connection frame and compressing tablet, and connection frame is connected with heat-insulated contiguous block lower end hole position,
Compressing tablet is used for fixed connection frame and heat-insulated contiguous block.
Four-way valve plate as described above has square hollow structure, connect respectively frame, jet pump, baroceptor and
Blowback air, realizes the function switching of sample collection and blowback cleaning, simple and practical.
The utility model has the advantages that, being switched by simple valve body can just realize blowback cleaning function, and laser bench is torn open
Unload conveniently, be easy to clean eyeglass, overall gas circuit structure design is simple, easy for installation, it is easy to operate.
Brief description of the drawings
Fig. 1 is a kind of gas path device overall schematic for the preceding ultralow flue dust monitor of scattering of the present utility model
Fig. 2 is a kind of gas path device top plan view for the preceding ultralow flue dust monitor of scattering of the present utility model
In figure, 1-light-receiving seat, 2-electric boiling plate, 3-glass air chamber, 4-compressing tablet, 5-connection frame, 6-heat-insulated company
Connect block, 7-laser bench, 8-four-way valve plate, 9-jet pump, 10-baroceptor, 11-blowback air.
Specific embodiment
As shown in Fig. 1 and 2, the utility model provides a kind of gas path device for the preceding ultralow flue dust monitor of scattering, gas
Road device connects frame 5, heat-insulated contiguous block 6, laser bench 7, four-way by light-receiving seat 1, electric boiling plate 2, glass air chamber 3, compressing tablet 4
Valve plate 8, jet pump 9 is constituted.
Application method of the invention is that heat-insulated contiguous block 6 is reserved with three mounting holes, and glass air chamber 3 is connected respectively, is swashed
Light seat 7 and connect frame 5, and loading O-ring is for sealing during installation；Glass air chamber 3 is embedded in the reserved hole position of heat-insulated contiguous block,
Light-receiving seat 1 and electric boiling plate 2 are installed on the outside of glass air chamber 3, are fixed with screw with heat-insulated contiguous block 6；To be provided with
The laser bench 7 of level crossing and laser screws in the reserved mounting hole site of heat-insulated contiguous block；One end that frame 5 will be connected is embedded in heat-insulated company
Connect in the mounting hole site of block 6, compressing tablet 4 is put in the top of heat-insulated contiguous block, be connected with connection frame 5 by screw, fixation is heat-insulated
Contiguous block；The other end for connecting frame is connected by stainless steel elbow bend with four-way valve plate 8；Four-way valve plate and jet pump 9, air pressure
Sensor 10, blowback air 11 are connected by stainless joint.
Claims (5)
1. a kind of gas path device for the ultralow flue dust monitor of preceding scattering, by can heat air chamber, laser bench, heat-insulated contiguous block,
Connection component, four-way valve plate and jet pump are constituted, it is characterised in that can heat air chamber by glass air chamber, light-receiving seat, electrical heating
Plate is constituted；Laser bench inside is equipped with level crossing and laser, and level crossing is used to completely cut off flue dust；Heat-insulated contiguous block is used to connect and can add
Hot gas room and laser bench, are connected by connecting component with four-way valve plate；Connection component is made up of connection frame and compressing tablet, by screw
Connection, the heat-insulated contiguous block of fixation and the connecting path for connecting frame；Four-way valve plate connects frame, jet pump, air pressure sensing respectively
Device and blowback air；Jet pump uses double layer design.
2. it is according to claim 1 a kind of for the preceding gas path device for scattering ultralow flue dust monitor, it is characterised in that institute
The heat-insulated contiguous block stated is polytetrafluoroethylene (PTFE) material, effectively completely cuts off influence of the heat transfer to laser, contiguous block two ends and bottom
Hole position is provided with, glass air chamber, laser bench is connected respectively and is connected frame.
3. it is according to claim 1 a kind of for the preceding gas path device for scattering ultralow flue dust monitor, it is characterised in that institute
The four-way valve plate stated has square hollow structure, is provided with four ventilation hole positions, and frame, jet pump, air pressure sensing are connected respectively
Device and blowback air.
4. it is according to claim 1 a kind of for the preceding gas path device for scattering ultralow flue dust monitor, it is characterised in that institute
The laser bench inside stated loads laser and level crossing, is connected with heat-insulated contiguous block using spiral fixed form.
5. it is according to claim 1 a kind of for the preceding gas path device for scattering ultralow flue dust monitor, it is characterised in that institute
The connection frame stated is stainless steel, and the compressing tablet with the heat-insulated contiguous block upper end for being positioned over polytetrafluoroethylene (PTFE) material is connected by screw
Connect, connection frame is fixed with heat-insulated contiguous block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621325858.6U CN206235533U (en) | 2016-12-06 | 2016-12-06 | A kind of gas path device for the preceding ultralow flue dust monitor of scattering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621325858.6U CN206235533U (en) | 2016-12-06 | 2016-12-06 | A kind of gas path device for the preceding ultralow flue dust monitor of scattering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206235533U true CN206235533U (en) | 2017-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621325858.6U Active CN206235533U (en) | 2016-12-06 | 2016-12-06 | A kind of gas path device for the preceding ultralow flue dust monitor of scattering |
Country Status (1)
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| CN (1) | CN206235533U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883914A (en) * | 2019-03-25 | 2019-06-14 | 中兴仪器（深圳）有限公司 | A kind of flue dust optical detection apparatus |
| CN113607539A (en) * | 2021-07-19 | 2021-11-05 | 上海航天精密机械研究所 | Blocking prevention device and method for heat flow sensor in static heating test of ablation test piece |
| CN114577690A (en) * | 2022-03-08 | 2022-06-03 | 杭州云斐科技有限公司 | Particulate matter concentration detection device |
-
2016
- 2016-12-06 CN CN201621325858.6U patent/CN206235533U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883914A (en) * | 2019-03-25 | 2019-06-14 | 中兴仪器（深圳）有限公司 | A kind of flue dust optical detection apparatus |
| CN113607539A (en) * | 2021-07-19 | 2021-11-05 | 上海航天精密机械研究所 | Blocking prevention device and method for heat flow sensor in static heating test of ablation test piece |
| CN113607539B (en) * | 2021-07-19 | 2023-07-14 | 上海航天精密机械研究所 | Anti-blocking device and method for heat flow sensor of static heating test of ablation test piece |
| CN114577690A (en) * | 2022-03-08 | 2022-06-03 | 杭州云斐科技有限公司 | Particulate matter concentration detection device |
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Address after: Room 8, seat 802, seat E, No. 9, Third Street, Haidian District, Beijing, Beijing Patentee after: China energy saving Tian Rong Technology Co., Ltd. Address before: Room 8, seat 802, seat E, No. 9, Third Street, Haidian District, Beijing, Beijing Patentee before: Zhongke Tianrong (Beijing) Technology Co., Ltd. |