CN109444012A - A kind of detection device for direct-reading dust determination instrument - Google Patents
A kind of detection device for direct-reading dust determination instrument Download PDFInfo
- Publication number
- CN109444012A CN109444012A CN201811612279.3A CN201811612279A CN109444012A CN 109444012 A CN109444012 A CN 109444012A CN 201811612279 A CN201811612279 A CN 201811612279A CN 109444012 A CN109444012 A CN 109444012A
- Authority
- CN
- China
- Prior art keywords
- square
- rail
- detection device
- connection terminal
- sampling head
- 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.)
- Pending
Links
- 239000000428 dust Substances 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000005070 sampling Methods 0.000 claims abstract description 33
- 239000012528 membrane Substances 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 11
- 239000002245 particle Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
- G01N15/0612—Optical scan of the deposits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth 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 discloses a kind of detection devices for direct-reading dust determination instrument, it include: the detection device ontology being mounted by means of bolts on bottom plate, the detection device ontology includes: signal receiver mounting base, first square rail, sliding shoe, second square guide rail and sampling head connection terminal, the signal receiver mounting base, first square rail, second square rail is mounted by means of bolts on respectively on the bottom plate, first square rail, sliding shoe, second square rail, the through type dust-contained airflow channel of perforation is offered in the middle part of sampling head connection terminal.By the above-mentioned means, the present invention uses through type dust-contained airflow channel, the delay of dust can be reduced, to improve the detection accuracy of dust determination instrument.
Description
Technical field
The present invention relates to dust concentration testing equipment fields, more particularly to a kind of inspection for direct-reading dust determination instrument
Survey device.
Background technique
The detection device that existing direct-reading dust determination instrument uses, when acquiring dust particle, dust particle passes through
Detection device channel inside corners, dust particle will form delay, can not completely arrive at detection filter membrane, make direct-reading dust determination
Instrument cannot accurately measure dust concentration, reduce the detection accuracy of direct-reading dust determination instrument.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of detection devices for direct-reading dust determination instrument, can
Solve drawbacks described above existing for existing detection device.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: it provides a kind of for direct-reading dust
The detection device of analyzer, comprising: the detection device ontology being mounted by means of bolts on bottom plate, the detection device ontology
It include: signal receiver mounting base, the first square rail, sliding shoe, the second square guide rail and sampling head connection terminal, the signal
Receiver mounting base, the first square rail, the second square rail are mounted by means of bolts on respectively on the bottom plate, the letter
Square groove is offered on one end face of number receiver mounting base and the first rectangular guide rail contact, the square groove is provided with filter
Film folder, the sliding shoe is T-shaped, including for installing optical signal companion receiver square base and with the square base integrally connected
Screw rod end, the square base is fixedly connected by connecting pin with the first square rail, and the screw rod end extend into described second
It being fixedly connected in square rail and with second square rail, the sampling head connection terminal is connect with the screw rod end, and
And the middle part of the signal receiver mounting base, the first square rail, sliding shoe, the second square rail, sampling head connection terminal
Offer the through type dust-contained airflow channel of perforation.
In a preferred embodiment of the present invention, infraluminescence pipe is also equipped in the square base.
In a preferred embodiment of the present invention, the front end sleeve at the screw rod end is equipped with compressed spring, and rear end stretches out in the
Through-hole in two square rails is connect with sampling head connection terminal.
In a preferred embodiment of the present invention, the inner wall at the screw rod end has been integrally machined internal thread groove, the sampling
Head connection terminal outer wall be integrally machined external screw thread, when the sampling head connection terminal screw in the screw rod end when described in
External screw thread and internal thread groove are intermeshed.
The beneficial effects of the present invention are: the present invention is using signal receiver mounting base, the first square rail, sliding shoe, the
Two square guide rails and the mutually matched structure design of sampling head connection terminal, dust-contained airflow are accessed from sampling head connection terminal, and
It offers and passes through in the middle part of signal receiver mounting base, the first square rail, sliding shoe, the second square guide rail and sampling head connection terminal
Logical through type dust-contained airflow channel, can reduce the delay of dust, to improve the detection accuracy of dust determination instrument.
Detailed description of the invention
Fig. 1 is a kind of structural representation of one preferred embodiment of detection device for direct-reading dust determination instrument of the present invention
Figure；
Fig. 2 is the left view of Fig. 1；
The components in the drawings are labeled as follows: 1, detection device ontology, 11, signal receiver mounting base, and 12, first rectangular leads
Rail, 13, sliding shoe, 131, square base, 132, screw rod end, the 14, second square guide rail, 15, sampling head connection terminal, 2, bottom plate, 3,
Filter membrane clip, 4, compressed spring, 5, infraluminescence pipe, 6, optical signal companion receiver, 7, optical signal receiver.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Fig. 1, Fig. 2 are please referred to, the embodiment of the present invention includes:
A kind of detection device for direct-reading dust determination instrument, comprising: the detection dress being mounted by means of bolts on bottom plate 2
Ontology 1 is set, the detection device ontology 1 includes: signal receiver mounting base 11, the first square rail 12, sliding shoe 13, second
Square guide rail 14 and sampling head connection terminal 15, the signal receiver mounting base 11, the first square rail 12, the second square rail
14 are mounted by means of bolts on respectively on the bottom plate 2, and the signal receiver mounting base 11 connects with the first square rail 12
Square groove is offered on one end face of touching, the square groove is provided with filter membrane clip 3, and the sliding shoe 13 is T-shaped, including with
Square base 131 in installation optical signal companion receiver and screw rod end 132 with 131 integrally connected of square base, it is described rectangular
Seat 131 is fixedly connected by connecting pin with the first square rail 12, and the screw rod end 132 extend into second square rail 14
Interior and be fixedly connected with second square rail 14, specifically, the front end at the screw rod end 132 is further sleeved with compressed spring 4,
The through-hole that rear end stretches out in the second square rail 14 is connect with sampling head connection terminal 15, manually will be described when installing filter membrane
Sampling head connection terminal 15 pulls back, and moves backward the sliding shoe 13 to make square base 131 and signal receiver install
Seat 11 separates, and filter membrane is installed in filter membrane clip 3, then unclamps the sampling head connection terminal 15, the elastic force of compressed spring 4 will
The sliding shoe 13 pushes forward, and square base 131 is made to compress the signal receiver mounting base 11；
The signal receiver mounting base 11, the first square rail 12, sliding shoe 13, the second square rail 14, sampling head connection
The middle part of terminal 15 offers the through type dust-contained airflow channel of perforation, and external dust laden air input pipe passes through sampling head connecting pin
Son 15 accesses, and dust-contained airflow moves from back to front along the dust-contained airflow channel, until touching filter membrane, then dust laden air
In dust granule be deposited on the filter membrane；
Infraluminescence pipe 5 is also equipped in the square base 131, the infraluminescence pipe 5 can emit 940nm infrared light, so
Detection numerical value and detection a reference value are obtained by optical signal receiver 7 and optical signal companion receiver 6 respectively afterwards.
In the present embodiment, the inner wall at the screw rod end 132 has been integrally machined internal thread groove, the sampling head connection terminal 15
Outer wall be integrally machined external screw thread, the outer spiral shell when the sampling head connection terminal 15 screws in the screw rod end 132
Line and internal thread groove are intermeshed, it can be ensured that the connection reliability between sampling head connection terminal 15 and sliding shoe 13.
The testing principle of the detection device are as follows:
When direct-reading dust determination instrument starts to detect dust concentration, filter membrane is encased in filter membrane clip 3, and infraluminescence pipe 5 issues
For 940nm Infrared irradiation to filter membrane, optical signal companion receiver 6 receives the infrared light of infraluminescence pipe sending, obtains detection base
Numerical value A；The main receiver 7 of optical signal is received through the infrared light after the membrane filtration on filter membrane clip, obtains detection base value A ',
It is unchanged to judge that A ' and A has, dust laden air input pipe is accessed into sampling head connection terminal 15, ash-laden gas circulation in unchanged situation
It crosses after through type dust-contained airflow channel reaches filter membrane, the dust granule in dust-contained airflow is deposited on filter membrane, and infraluminescence pipe 5 is again
For secondary sending 940nm infrared light to filter membrane, the main receiver 7 of optical signal, which obtains, detects numerical value B, passes through dust determination instrument in house software meter
Calculate current dust concentration value.
Specially calculation formula are as follows:
Detect base value (using preceding numerical value): A
It detects numerical value (numerical value after sampling): B
The main receiver dark current numerical value of optical signal: C
Sampling time: T
Substance distribution density coefficient: K
Material density coefficient: S
Dust concentration average value: D
Its calculation formula is as follows: D=(log ((A-C) ÷ (B-C)) ÷ T ÷ K) × S obtains dust concentration average value D.
The present invention is connected using signal receiver mounting base, the first square rail, sliding shoe, the second square guide rail with sampling head
Terminal mutually matched structure design, dust-contained airflow are accessed from sampling head connection terminal, and in signal receiver mounting base, the
The through type ash-laden gas circulation of perforation is offered in the middle part of one square rail, sliding shoe, the second square guide rail and sampling head connection terminal
Road can reduce the delay of dust, to improve the detection accuracy of dust determination instrument.
In the description of the present invention, it should be noted that the instruction such as term " on ", "lower", "left", "right", "inner", "outside"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when usually put
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning
Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, and comes for those skilled in the art
It says, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any modification, equivalent
Replacement, improvement etc., should all be included in the protection scope of the present invention.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (4)
1. a kind of detection device for direct-reading dust determination instrument characterized by comprising be mounted by means of bolts on bottom
Detection device ontology on plate, the detection device ontology include: signal receiver mounting base, the first square rail, sliding shoe,
Second square guide rail and sampling head connection terminal, the signal receiver mounting base, the first square rail, the second square rail difference
It is mounted by means of bolts on the bottom plate, on an end face of the signal receiver mounting base and the first rectangular guide rail contact
Square groove is offered, the square groove is provided with filter membrane clip, and the sliding shoe is T-shaped, including for installing optical signal pair
The square base of receiver and screw rod end with the square base integrally connected, the square base rectangular are led by connecting pin with first
Rail is fixedly connected, and the screw rod end extend into second square rail and is fixedly connected with second square rail, institute
It states sampling head connection terminal to connect with the screw rod end, and the signal receiver mounting base, the first square rail, sliding
Block, the second square rail, the through type dust-contained airflow channel that perforation is offered in the middle part of sampling head connection terminal.
2. the detection device according to claim 1 for direct-reading dust determination instrument, which is characterized in that the square base
Inside it is also equipped with infraluminescence pipe.
3. the detection device according to claim 1 for direct-reading dust determination instrument, which is characterized in that the screw rod end
Front end sleeve compressed spring is housed, the through-hole that rear end stretches out in the second square rail connect with sampling head connection terminal.
4. the detection device according to claim 1 or 3 for direct-reading dust determination instrument, which is characterized in that the spiral shell
The inner wall of rod end has been integrally machined internal thread groove, and the outer wall of the sampling head connection terminal has been integrally machined external screw thread, when described
Sampling head the connection terminal external screw thread and internal thread groove intermeshing when screwing in the screw rod end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811612279.3A CN109444012A (en) | 2018-12-27 | 2018-12-27 | A kind of detection device for direct-reading dust determination instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811612279.3A CN109444012A (en) | 2018-12-27 | 2018-12-27 | A kind of detection device for direct-reading dust determination instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109444012A true CN109444012A (en) | 2019-03-08 |
Family
ID=65539779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811612279.3A Pending CN109444012A (en) | 2018-12-27 | 2018-12-27 | A kind of detection device for direct-reading dust determination instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109444012A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH450765A (en) * | 1966-08-26 | 1968-01-31 | Bosch Gmbh Robert | Device for determining the dust content in flowing gases, especially the soot content in exhaust gases from diesel engines |
| CN2800273Y (en) * | 2005-06-03 | 2006-07-26 | 郑州市光力科技发展有限公司 | Sampling and measuring integrated apparatus for measuring dust concentration by beta ray absorption method |
| JP2006208254A (en) * | 2005-01-31 | 2006-08-10 | Amano Corp | Dust concentration detector |
| CN101603912A (en) * | 2009-07-13 | 2009-12-16 | 常熟市福虞矿山器材有限公司 | Direct-reading dust concentration detector |
| CN102419296A (en) * | 2011-08-19 | 2012-04-18 | 苏州亿利安机电科技有限公司 | Direct-reading dust concentration measuring instrument |
| CN104729966A (en) * | 2015-03-30 | 2015-06-24 | 江苏华凯矿业科技有限公司 | Direct-reading dust concentration detector |
| CN209471018U (en) * | 2018-12-27 | 2019-10-08 | 常熟市德虞矿山机电有限公司 | A kind of detection device for direct-reading dust determination instrument |
-
2018
- 2018-12-27 CN CN201811612279.3A patent/CN109444012A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH450765A (en) * | 1966-08-26 | 1968-01-31 | Bosch Gmbh Robert | Device for determining the dust content in flowing gases, especially the soot content in exhaust gases from diesel engines |
| JP2006208254A (en) * | 2005-01-31 | 2006-08-10 | Amano Corp | Dust concentration detector |
| CN2800273Y (en) * | 2005-06-03 | 2006-07-26 | 郑州市光力科技发展有限公司 | Sampling and measuring integrated apparatus for measuring dust concentration by beta ray absorption method |
| CN101603912A (en) * | 2009-07-13 | 2009-12-16 | 常熟市福虞矿山器材有限公司 | Direct-reading dust concentration detector |
| CN102419296A (en) * | 2011-08-19 | 2012-04-18 | 苏州亿利安机电科技有限公司 | Direct-reading dust concentration measuring instrument |
| CN104729966A (en) * | 2015-03-30 | 2015-06-24 | 江苏华凯矿业科技有限公司 | Direct-reading dust concentration detector |
| CN209471018U (en) * | 2018-12-27 | 2019-10-08 | 常熟市德虞矿山机电有限公司 | A kind of detection device for direct-reading dust determination instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10151682B2 (en) | Airborne particle measuring device | |
| CN110595967B (en) | Dust concentration detector | |
| WO2004034019A3 (en) | Low volume sample cell and gas monitoring system using same | |
| CN1979172B (en) | Gas analyzing method | |
| CN209471018U (en) | A kind of detection device for direct-reading dust determination instrument | |
| CN207280552U (en) | A kind of reagent bottle liquid level sensor | |
| CN109444012A (en) | A kind of detection device for direct-reading dust determination instrument | |
| CN202869931U (en) | Atmospheric particulate on-line monitoring instrument detection module | |
| CN104792676B (en) | The method that air nano-scale particle concentration is measured using ionization method | |
| CN205538815U (en) | Full flow type motorcycle exhaust measurement system | |
| CN202421059U (en) | Combined detection part-based expiratory end carbon dioxide analysis module | |
| CN109297876A (en) | A method of measurement dust concentration | |
| CN205656130U (en) | Portable indoor air quality monitoring devices based on singlechip | |
| CN208736494U (en) | A kind of gas precession vortex meter | |
| CN201425572Y (en) | High-precision device for measuring dust concentration | |
| CN212254987U (en) | Industrial dust concentration monitoring device | |
| CN104089930B (en) | Formula Smoke Monitoring System is scattered after a kind of laser | |
| CN210376250U (en) | Gas chromatograph with monitoring jam condition | |
| CN210486945U (en) | Gas detection device | |
| CN209979314U (en) | Sampling pipe without interception insertion structure | |
| CN209495967U (en) | Visual electric fire multistage automatic alarm device | |
| CN207004780U (en) | Extraction flow control system based on double absolute pressure methods in side stream type gasmetry | |
| CN209513607U (en) | Multi-mode gas analysis device | |
| CN205861886U (en) | A kind of High-accuracy direct current coulomb meter, coulometer | |
| CN207113137U (en) | One kind carries monitoring purification of air bellows |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |