CN110865007A - Hand-held type light-tight smokemeter - Google Patents
Hand-held type light-tight smokemeter Download PDFInfo
- Publication number
- CN110865007A CN110865007A CN201911375628.9A CN201911375628A CN110865007A CN 110865007 A CN110865007 A CN 110865007A CN 201911375628 A CN201911375628 A CN 201911375628A CN 110865007 A CN110865007 A CN 110865007A
- Authority
- CN
- China
- Prior art keywords
- air
- chamber
- hand
- held
- 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.)
- Pending
Links
- 239000000779 smoke Substances 0.000 claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000005070 sampling Methods 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 claims description 10
- 238000002955 isolation Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
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
-
- G01N15/075—
Abstract
The invention relates to a hand-held opaque smoke meter, which comprises a shell and a control system, wherein the bottom of the shell is provided with a support frame, the side surface of the shell is provided with a smoke inlet, the smoke inlet is communicated and connected with a sampling probe, the bottom of the shell is provided with two air outlets, the top of the shell is provided with an air inlet, and the hand-held opaque smoke meter further comprises: the measuring air chamber, the photoelectric detection unit and the double-air-curtain chamber are arranged, the double-air-curtain chamber comprises a first air pipeline and a second air pipeline which are symmetrically arranged, the first air pipeline and the second air pipeline form an arch shape with an arched middle part, and the tops of the first air pipeline and the second air pipeline are communicated with each other to form the air inlet; the lens chamber group is respectively communicated with the air outlet, the measuring air chamber and the double air curtain chambers which are connected to the same side, and the lens chamber group is provided with a lens group; the number of the fans is one, and the fans are arranged in the center between the double air curtain chambers and the air inlet.
Description
Technical Field
The invention relates to the field of smoke intensity detection, in particular to a handheld light-tight smoke meter.
Background
The detection of the emission concentration of the particulate matters generally adopts a transmission-type smoke meter, and the concentration of the particulate matters is determined by utilizing the transmission coefficient of smoke. The transmission-type smoke meter comprises a sampling module, a measuring module, a control display module and the like, and after the smoke meter is started, a fan forms negative pressure in the air chamber to suck smoke into the air chamber from an air inlet pipe; the light emitted by the light emitting diode is changed into parallel light through the optical lens, passes through the gas chamber filled with the flue gas and is focused on the photoelectric device through the optical lens.
In order to conveniently detect the automobile exhaust, the handheld smoke meter has the advantages of small volume, light weight, portability, convenient use at any time and the like. However, in order to achieve the limitations of physical skill and weight, the hand-held smokers need to minimize the internal components thereof while ensuring the accuracy thereof. Traditional hand-held type smokemeter is provided with the fan respectively in two branches of its two air curtain rooms, launches two fans simultaneously and ventilates, forbids work such as cigarette to two branches. According to the method, in the using process of the handheld smoke meter, when an operator moves and shakes the smoke meter for timing, the left fan and the right fan of the smoke meter are easy to change in rotating speed under the action of air, so that deviation occurs in the air intake of the two branches, and the accuracy of a test result is influenced.
The invention aims to design a handheld opaque smoke meter aiming at the problems in the prior art.
Disclosure of Invention
In view of the problems in the prior art, the present invention provides a handheld opaque smokemeter, which can effectively solve the problems in the prior art.
The technical scheme of the invention is as follows:
the utility model provides a light-tight smoke meter of hand-held type contains casing and control system, the casing is provided with the support frame in its bottom, the side of casing is provided with into the mouth, it is connected with sampling probe to advance the mouth intercommunication, the bottom of casing is provided with two gas outlets, the top of casing is provided with the air inlet, further contains:
the measuring air chamber is communicated between the two air outlets in the shell and is connected to the smoke inlet, and a heating layer is coated on the periphery of the measuring air chamber;
the photoelectric detection unit is electrically connected to the control system, comprises a transmitter and a receiver and is respectively arranged at two ends of the measurement air chamber;
the double air curtain chamber comprises a first air pipeline and a second air pipeline which are symmetrically arranged, the first air pipeline and the second air pipeline form an arch shape with an arched middle part, and the tops of the first air pipeline and the second air pipeline are communicated with each other to form the air inlet;
the lens chamber group is respectively communicated with the air outlet, the measuring air chamber and the double air curtain chambers which are connected to the same side, and the lens chamber group is provided with a lens group;
the number of the fans is one, and the fans are arranged in the center between the double air curtain chambers and the air inlet.
Further, the lens group comprises a convex mirror and a concave mirror. The convex mirror is arranged between the emitter and the measuring air chamber, and the concave mirror is arranged between the measuring air chamber and the receiver.
Further, the shell is provided with an air inlet cover plate corresponding to the upper end of the air inlet. The side surface of the air inlet cover plate is provided with a plurality of air inlet holes. The center position of air inlet apron corresponds the central line of two air curtain rooms is provided with the isolation recess, the isolation recess is separated air inlet apron becomes symmetrical left half and right half.
Further comprises a mains supply interface and a storage battery.
Further comprises a Bluetooth module which is wirelessly connected to the Bluetooth printer.
Further contain the WIFI module, WIFI module wireless connection is to the computer.
Accordingly, the present invention provides the following effects and/or advantages:
the double-air-curtain chamber structure comprises a first air pipeline and a second air pipeline which are symmetrically arranged, the first air pipeline and the second air pipeline form an arch shape with an arched middle part, the first air pipeline and the second air pipeline are respectively communicated and connected to the emitter and the receiver, the tops of the first air pipeline and the second air pipeline are communicated and provided with air inlets, and meanwhile, a fan is arranged at the center of the upper end of the first air pipeline and the second air pipeline, so that the air quantity generated by one fan can be effectively ensured to be uniform to reach the two air pipelines.
In addition, the lens group is arranged between the measurement air chamber and the photoelectric detection unit, the measurement air chamber is communicated between the air outlets, the lens group is arranged at the tail end of the measurement air chamber, the size, the linearity and the like of light spots can be adjusted through the lens group, and the measurement accuracy is further improved.
The lens group is arranged at the tail end of the measuring air chamber, and the light quantity received by the detection unit is influenced by the pollution of smoke on the lens group, so that the smoke intensity is detected. Because the lens group is exposed to the air outlet, after the lens group is used, the transmittance of the lens can be recovered only by wiping with clean paper towels and the like, and the lens group is convenient to use next time.
It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a left side view of fig. 1.
Fig. 4 is a cross-sectional view C-C of fig. 3.
Fig. 5 is a schematic structural diagram of the extension and the air inlet cover plate.
Fig. 6 is an exploded view of the structure of the present invention.
Fig. 7 is a schematic structural diagram of the housing.
Fig. 8 is a working principle diagram of the present invention.
Detailed Description
To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail by way of examples in conjunction with the accompanying drawings:
referring to fig. 1-7, a light-tight smoke meter of hand-held type contains casing 1 and control system 2, casing 1 is provided with the support frame in its bottom, the side of casing 1 is provided with into mouth 101, it is connected with sampling probe to advance mouth 101 intercommunication, the bottom of casing 1 is provided with two gas outlets 102, the top of casing 1 is provided with air inlet 103, further contains:
the measuring air chamber 3 is communicated between the two air outlets 102 in the shell 1 and is connected to the smoke inlet 101, and a heating layer is coated on the periphery of the measuring air chamber 3;
a photoelectric detection unit 4 electrically connected to the control system 2, including a transmitter 402 and a receiver 401 respectively disposed at two ends of the measurement gas chamber 3;
the double air curtain chamber 5 comprises a first air pipeline 501 and a second air pipeline 502 which are symmetrically arranged, the first air pipeline 501 and the second air pipeline 502 form an arch shape with a middle portion being arched, and the tops of the first air pipeline 501 and the second air pipeline 502 are communicated with the air inlet 103;
the lens chamber group 6 is respectively communicated and connected with the air outlet 102, the measurement air chamber 3 and the double air curtain chambers 5 on the same side, and is provided with a lens group 7;
and the number of the fans 8 is one, and the fans are arranged in the central position between the double air curtain chambers and the air inlet 103 of the double air curtain chambers 5.
Further, the lens group 7 includes a convex mirror and a concave mirror. The convex mirror is arranged between the transmitter 402 and the measurement gas chamber 3, and the concave mirror is arranged between the measurement gas chamber 3 and the receiver 401.
Further, an air inlet cover plate 104 is arranged at the upper end of the shell 1 corresponding to the air inlet 103. The intake cover plate 104 is provided at a side thereof with a plurality of intake holes 105. The center position of the air inlet cover plate 104 is provided with an isolation groove 106 corresponding to the center line of the double air curtain chamber 5, and the isolation groove 106 separates the air inlet cover plate 104 into a symmetrical left half part and a symmetrical right half part.
Further comprising a mains power supply interface 10 and a battery 11.
Further comprising a bluetooth module (not shown) that is wirelessly connected to the bluetooth printer.
Further comprises a WIFI module 9, wherein the WIFI module 9 is connected to a computer in a wireless way.
The working principle is as follows:
referring to fig. 1-8, before the present invention is used, the heating layer of the present invention is started, so that the temperature in the detection air chamber 3 is raised to 100 ℃, the flue gas is conveyed to the smoke inlet through the sampling probe, the flue gas flows to the left and right sides in the detection air chamber 3, meanwhile, the fan drives the external clean air to reach the two air outlets through the double air curtain chambers, the air volume generated by one fan can be effectively ensured to uniformly reach the two air pipelines, even if a worker moves and shakes the smoke meter, the change of the two air branches is synchronous after the air inlet volume is changed, the light receiving volume received by the light detection unit is influenced by the degree of the lens group polluted by the flue gas, and the smoke intensity is calculated. The invention can ensure that the air inlet volumes of the two branches are the same and ensure the detection accuracy.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (9)
1. The utility model provides a light-tight smoke meter of hand-held type contains casing and control system, the casing is provided with the support frame in its bottom, the side of casing is provided with into the mouth, it is connected with sampling probe to advance the mouth intercommunication, the bottom of casing is provided with two gas outlets, the top of casing is provided with air inlet, its characterized in that: further comprising:
the measuring air chamber is communicated between the two air outlets in the shell and is connected to the smoke inlet, and a heating layer is coated on the periphery of the measuring air chamber;
the photoelectric detection unit is electrically connected to the control system, comprises a transmitter and a receiver and is respectively arranged at two ends of the measurement air chamber;
the double air curtain chamber comprises a first air pipeline and a second air pipeline which are symmetrically arranged, the first air pipeline and the second air pipeline form an arch shape with an arched middle part, and the tops of the first air pipeline and the second air pipeline are communicated with each other to form the air inlet;
the lens chamber group is respectively communicated with the air outlet, the measuring air chamber and the double air curtain chambers which are connected to the same side, and the lens chamber group is provided with a lens group;
the number of the fans is one, and the fans are arranged in the center between the double air curtain chambers and the air inlet.
2. The hand-held, non-transparent smoke meter of claim 1, wherein: the lens group comprises a convex mirror and a concave mirror.
3. The hand-held, non-transparent smoke meter of claim 2, wherein: the convex mirror is arranged between the emitter and the measuring air chamber, and the concave mirror is arranged between the measuring air chamber and the receiver.
4. The hand-held, non-transparent smoke meter of claim 1, wherein: the shell corresponds to the upper end of the air inlet and is provided with an air inlet cover plate.
5. The hand-held, non-transparent smoke meter of claim 4, wherein: the side surface of the air inlet cover plate is provided with a plurality of air inlet holes.
6. The hand-held, non-transparent smoke meter of claim 4, wherein: the center position of air inlet apron corresponds the central line of two air curtain rooms is provided with the isolation recess, the isolation recess is separated air inlet apron becomes symmetrical left half and right half.
7. The hand-held, non-transparent smoke meter of claim 1, wherein: further comprises a mains supply interface and a storage battery.
8. The hand-held, non-transparent smoke meter of claim 1, wherein: further comprises a Bluetooth module which is wirelessly connected to the Bluetooth printer.
9. The hand-held, non-transparent smoke meter of claim 1, wherein: further contain the WIFI module, WIFI module wireless connection is to the computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911375628.9A CN110865007A (en) | 2019-12-27 | 2019-12-27 | Hand-held type light-tight smokemeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911375628.9A CN110865007A (en) | 2019-12-27 | 2019-12-27 | Hand-held type light-tight smokemeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110865007A true CN110865007A (en) | 2020-03-06 |
Family
ID=69660036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911375628.9A Pending CN110865007A (en) | 2019-12-27 | 2019-12-27 | Hand-held type light-tight smokemeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110865007A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5353629A (en) * | 1991-07-05 | 1994-10-11 | L. L. Churchill Limited | Smoke meter |
| CN2616902Y (en) * | 2003-03-11 | 2004-05-19 | 庞建梁 | Measuring channel for transmission-type smokemeter |
| CN201289464Y (en) * | 2008-11-06 | 2009-08-12 | 天津市圣威科技发展有限公司 | Portable light-tight smoke meter |
| CN201540254U (en) * | 2009-12-17 | 2010-08-04 | 天津市圣威科技发展有限公司 | Portable full current lightproof smoke meter |
| CN103411865A (en) * | 2013-08-09 | 2013-11-27 | 浙江浙大鸣泉科技有限公司 | Optical table of transmission-type smokemeter |
| CN108335490A (en) * | 2018-03-26 | 2018-07-27 | 南京新远见智能科技有限公司 | A kind of hand-held tail gas black smoke intelligent recognition video frequency monitoring system and method |
| CN208705199U (en) * | 2018-09-10 | 2019-04-05 | 北京知天地环境科技有限公司 | A kind of smokemetor |
-
2019
- 2019-12-27 CN CN201911375628.9A patent/CN110865007A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5353629A (en) * | 1991-07-05 | 1994-10-11 | L. L. Churchill Limited | Smoke meter |
| CN2616902Y (en) * | 2003-03-11 | 2004-05-19 | 庞建梁 | Measuring channel for transmission-type smokemeter |
| CN201289464Y (en) * | 2008-11-06 | 2009-08-12 | 天津市圣威科技发展有限公司 | Portable light-tight smoke meter |
| CN201540254U (en) * | 2009-12-17 | 2010-08-04 | 天津市圣威科技发展有限公司 | Portable full current lightproof smoke meter |
| CN103411865A (en) * | 2013-08-09 | 2013-11-27 | 浙江浙大鸣泉科技有限公司 | Optical table of transmission-type smokemeter |
| CN108335490A (en) * | 2018-03-26 | 2018-07-27 | 南京新远见智能科技有限公司 | A kind of hand-held tail gas black smoke intelligent recognition video frequency monitoring system and method |
| CN208705199U (en) * | 2018-09-10 | 2019-04-05 | 北京知天地环境科技有限公司 | A kind of smokemetor |
Non-Patent Citations (2)
| Title |
|---|
| 国家质量监督检验检疫总局: "《JJG 976-2010透射式烟度计检定规程》", 5 January 2010 * |
| 国际标准化组织: "《ISO11614-1999往复式内燃压燃式发动机.不透明度测量仪器和废气吸光系数测定仪器》", 15 December 1999 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102128804B (en) | Side wall air inlet/outlet infrared air sensor | |
| CN206470157U (en) | Measuring instrument with gas concentration and powder concentration measurement function | |
| CN110865007A (en) | Hand-held type light-tight smokemeter | |
| CN202085709U (en) | Environment-friendly smoking device | |
| CN206684321U (en) | A kind of portable trace explosive and drug detector | |
| CN205403835U (en) | Portable smoke and dust tester | |
| CN107505286A (en) | Oxygen consumption amount detecting device and detection method during a kind of cigarette is burnt and sucked | |
| CN209927815U (en) | Outdoor air monitoring device | |
| CN209559861U (en) | A kind of flue gas analysis system | |
| CN209513605U (en) | A kind of pipe gallery distributed gas sensor | |
| CN202404079U (en) | Continuous smoking device for measuring ignition temperature of cigarette | |
| CN203981162U (en) | A kind of positioning distance measuring instrument | |
| CN206710352U (en) | A kind of gas detecting instrument | |
| CN211374251U (en) | Atmospheric dust sampler | |
| CN213148679U (en) | Filter belt type beta-ray smoke direct-reading detector | |
| CN214252006U (en) | Hand-held type infrared gas analyzer | |
| CN104122299A (en) | Fuel gas detector with self-suction device | |
| CN210136113U (en) | Fixed pollution source comprehensive sampling device | |
| CN204832123U (en) | Volatile organic substance measuring system with multiple independent measuring subsystems | |
| CN207865047U (en) | A kind of methane gas laser acquisition pump means | |
| CN204028029U (en) | Self-priming gas detector housing | |
| CN206656957U (en) | Double light source double light path infrared gas sensors | |
| CN220399275U (en) | High-altitude movable carbon dioxide measuring device | |
| CN211453045U (en) | Portable flue gas sampling and moisture content tester | |
| CN205538663U (en) | Infrared gas detecting system |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200306 |