CN101620181B - Transmission-type smoke meter and method for measuring valid smoke column length thereof - Google Patents
Transmission-type smoke meter and method for measuring valid smoke column length thereof Download PDFInfo
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- CN101620181B CN101620181B CN2008101278324A CN200810127832A CN101620181B CN 101620181 B CN101620181 B CN 101620181B CN 2008101278324 A CN2008101278324 A CN 2008101278324A CN 200810127832 A CN200810127832 A CN 200810127832A CN 101620181 B CN101620181 B CN 101620181B
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- sense channel
- transmission
- smoke
- smokemetor
- photometric system
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- 239000000779 smoke Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract 2
- 238000005259 measurement Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The invention discloses a transmission-type smoke meter capable of measuring valid smoke column length and a method for measuring valid smoke column length with the transmission-type smoke meter. The smoke meter is mainly characterized in that the outlet of the detecting path of the smoke meter is provided with a transparent sheet capable of observing the bending flow of detected gas, and a straight line representing the optical axis of the photometric system of the smoke meter is marked on the transparent sheet. The measuring method is mainly characterized in that coloured gas passes through the detecting path and an air curtain of the smoke meter; the optical distance of a light beam of the photometric system of the smoke meter in the bending flow of the coloured gas can be obtained by observing the straight line on the transparent sheet, and the obtained optical distance and the optical distance of the coloured gas in the detecting path are added to obtain the valid smoke column length of the smoke meter. The invention has the advantages that the transmission-type smoke meter has more scientificity, seriousness, objectivity and impartiality.
Description
Technical field
The present invention relates to the structure of transmission-type smokemetor, and the method for measuring effective column of smoke length of this smokemetor.
Background technology
In the national standard of relevant transmission-type smokemetor, require on the transmission-type smokemetor, to indicate effective column of smoke length of this smokemetor.Yet prior art is not still measured effective column of smoke measurement of length method of transmission-type smokemetor, more be not provided for measuring the structure of effective column of smoke length for the transmission-type smokemetor, this will cause the suspection of the public to transmission-type smokemetor science, seriousness, objectivity, fairness.
Summary of the invention
The purpose of this invention is to provide a kind of transmission-type smokemetor of measuring effective column of smoke length, and the method for measuring effective column of smoke length of transmission-type smokemetor.
For this reason, the transmission-type smokemetor of measuring effective column of smoke length of the present invention, comprise the sense channel that passes through for tested gas, the photometric system that is used for the tested gas of transmission, be used for forming the blower fan of air curtain in the exit of sense channel, especially, be provided with the light transmission piece that can be observed tested gas crooked a fluid stream of formation under air curtain blows, be shown with the straight line of the optical axis of representing photometric system at the light transmission piece subscript in the exit of sense channel.The transmission-type smokemetor that possesses said structure can adopt following method to record the effective column of smoke length of himself.
The method of effective column of smoke length of measurement transmission-type smokemetor of the present invention, be as tested gas with coloured gas, allow sense channel and the air curtain of coloured gas stream through smokemetor, formation is by the gas a fluid stream of the photometric system transmission of smokemetor, described a fluid stream is forming crooked a fluid stream with air curtain intersection, exit at sense channel is provided with the light transmission piece that can be observed crooked a fluid stream, on light transmission piece, indicate the straight line of the optical axis of representing photometric system, by observing this straight line obtain the light beam of photometric system in the intrafascicular length of bend flow at the intrafascicular light path of bend flow, the light path of the light beam of photometric system in sense channel, then according to the true form of sense channel and physical dimension and decide, light path that described bend flow is intrafascicular and the light path addition in the sense channel obtain effective column of smoke length of smokemetor.
Advantage of the present invention is to provide measuring method for effective column of smoke length of measuring the transmission-type smokemetor, and, make the transmission-type smokemetor have more science, seriousness, objectivity, fairness for the transmission-type smokemetor provides the structure that is used to measure effective column of smoke length.
Description of drawings
Fig. 1 is the structural representation of the embodiment 1 of transmission-type smokemetor of the present invention;
Fig. 2 is that the A of Fig. 1 is to partial view;
Fig. 3 is the structural representation of the embodiment 2 of transmission-type smokemetor of the present invention;
Embodiment
Be described in further detail the structure of transmission-type smokemetor of the present invention and method of the present invention below in conjunction with accompanying drawing.
Referring to Fig. 1, the structure of transmission-type smokemetor includes the sense channel 1 that passes through for tested gas, is used for forming in the exit of sense channel the blower fan 4,5 of air curtain 2,3.Be respectively arranged with light source 6 and optical receiver 7 at the two ends of sense channel, constitute photometric system.Simultaneously referring to Fig. 1, Fig. 2, be provided with in an end exit of sense channel 1 and can be observed tested gas forms crooked a fluid stream under the blowing of air curtain 2 light transmission piece 8, be shown with straight line 9 at the light transmission piece subscript.From the direction perpendicular to light transmission piece, straight line 9 is overlapping with the optical axis of photometric system, makes straight line 9 can represent the optical axis (representing optical axis with dotted line among the figure) of photometric system.Light transmission piece 8 useable glass or organic glass are made.When measuring the effective column of smoke length of smokemetor, as tested gas, allow coloured gas enter sense channel 1 with coloured gas, flow out from the two ends of sense channel again from the inlet 10 of sense channel, the coloured gas and the air curtain 2,3 that flow out from the sense channel two ends cross, and form two sections crooked a fluid streams; By light transmission piece 8 observation one section crooked a fluid stream wherein, measure straight line 9 on the light transmission piece in the intrafascicular length L 1 of bend flow, this length is exactly that the light beam of photometric system is at the intrafascicular light path of this section bend flow; Because the air intake opening 10 of sense channel is positioned at the centre of sense channel 1, and the wind speed of air curtain 2,3 equates, so can think that the shape of crooked a fluid stream in exit, two ends of sense channel is identical, the light beam of photometric system equates at two sections intrafascicular light paths of bend flow, be L1=L2, therefore L1 and L2 addition just obtained the light beam of photometric system at two sections total optical paths that bend flow is intrafascicular; The light path of the light beam of photometric system in sense channel 1 just equals the length L 3 of sense channel, and the length L 3 of sense channel is just definite when making smokemetor, need not in this special measurement; Two sections total optical path and interior light path sums of sense channel that bend flow is intrafascicular, just L1, L2 and L3 sum are exactly effective column of smoke length of this smokemetor.
Present embodiment only is provided with light transmission piece 8 in an end exit of sense channel 1.If for trying to achieve result more accurately, also a light transmission piece can respectively be set in the exit, two ends of sense channel 1, the light beam of measuring photometric system respectively is at two sections light path L1, L2 that bend flow is intrafascicular.
In order to measure straight line 9 on the light transmission piece, can adopt instant observation method, perhaps mensuration afterwards in the intrafascicular length of bend flow.If adopt instant observation method, need on straight line 9, mark scale, during measurement directly according to the scale reading numerical values; If adopt mensuration afterwards, then photographic goods such as available camera, video recorder shoot with video-corder measuring process get off, and record straight line 9 on the light transmission piece in the intrafascicular length of bend flow according to the ratio of shooting picture more afterwards.For mensuration afterwards, do not require and on straight line 9, to mark scale.
Embodiment 2
Referring to Fig. 3, the key distinction point of present embodiment and embodiment 1 is that sense channel 1 is not simple straight tubular.For the sense channel of this class shape, the light path of the light beam of photometric system in sense channel should equal the air line distance L3 between the outlet of sense channel two ends.This air line distance L3 equally also is just fixed after the smokemetor manufacturing is finished.Other design features of present embodiment and the method for measuring effective column of smoke length of smokemetor, identical with embodiment 1, repeat no more.
Claims (2)
1. transmission-type smokemetor, comprise the sense channel that passes through for tested gas, the photometric system that is used for the tested gas of transmission, be used for forming the blower fan of air curtain in the exit of sense channel, it is characterized in that: be provided with in the exit of sense channel and can be observed tested gas forms crooked a fluid stream under air curtain blows light transmission piece, be shown with the straight line of the optical axis of representing photometric system at the light transmission piece subscript.
2. measure the method for effective column of smoke length of transmission-type smokemetor, it is characterized in that: with coloured gas as tested gas, allow sense channel and the air curtain of coloured gas stream through smokemetor, formation is by the gas a fluid stream of the photometric system transmission of smokemetor, described a fluid stream is forming crooked a fluid stream with air curtain intersection, exit at sense channel is provided with the light transmission piece that can be observed crooked a fluid stream, on light transmission piece, indicate the straight line of the optical axis of representing photometric system, by observing this straight line obtain the light beam of photometric system in the intrafascicular length of bend flow at the intrafascicular light path of bend flow, the light path of the light beam of photometric system in sense channel, then according to the true form of sense channel and physical dimension and decide, light path that described bend flow is intrafascicular and the light path addition in the sense channel obtain effective column of smoke length of smokemetor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101278324A CN101620181B (en) | 2008-07-02 | 2008-07-02 | Transmission-type smoke meter and method for measuring valid smoke column length thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101278324A CN101620181B (en) | 2008-07-02 | 2008-07-02 | Transmission-type smoke meter and method for measuring valid smoke column length thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101620181A CN101620181A (en) | 2010-01-06 |
| CN101620181B true CN101620181B (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101278324A Expired - Fee Related CN101620181B (en) | 2008-07-02 | 2008-07-02 | Transmission-type smoke meter and method for measuring valid smoke column length thereof |
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| Country | Link |
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| CN (1) | CN101620181B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053397A (en) * | 2016-07-14 | 2016-10-26 | 宣尧杭 | Light transmittance detector for printing and dyeing wastewater control system and use method thereof |
| DK3781929T3 (en) | 2018-04-20 | 2022-09-12 | Flo2R Aps | Gas analyzer system |
| CN110501312A (en) * | 2019-04-29 | 2019-11-26 | 张帆 | A kind of transmission-type smoke meter |
| CN112730182A (en) * | 2020-12-31 | 2021-04-30 | 杭州春来科技有限公司 | Smoke meter and working method thereof |
| CN113048891A (en) * | 2021-03-26 | 2021-06-29 | 佛山翰创检测仪器有限公司 | Effective length measuring device of transmission-type smoke meter light channel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3826577A (en) * | 1972-12-07 | 1974-07-30 | Commercial Electronics Inc | Gas analyzing apparatus |
| 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 |
| CN201233366Y (en) * | 2008-07-02 | 2009-05-06 | 佛山分析仪有限公司 | Transmission type smokemeter capable of measuring length of effective smoke column |
-
2008
- 2008-07-02 CN CN2008101278324A patent/CN101620181B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3826577A (en) * | 1972-12-07 | 1974-07-30 | Commercial Electronics Inc | Gas analyzing apparatus |
| 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 |
| CN201233366Y (en) * | 2008-07-02 | 2009-05-06 | 佛山分析仪有限公司 | Transmission type smokemeter capable of measuring length of effective smoke column |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2000-55612A 2000.02.25 |
| JP特开平5-133872A 1993.05.28 |
| 杨礼河 等.基于人工神经网络烟度计有效光路的算法.《天津大学学报》.2006,第39卷(第9期),1072-1076. * |
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| Publication number | Publication date |
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| CN101620181A (en) | 2010-01-06 |
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Granted publication date: 20110112 |