CN201926620U - Cleaning structure of optical measurement probe - Google Patents
Cleaning structure of optical measurement probe Download PDFInfo
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- CN201926620U CN201926620U CN2010206546647U CN201020654664U CN201926620U CN 201926620 U CN201926620 U CN 201926620U CN 2010206546647 U CN2010206546647 U CN 2010206546647U CN 201020654664 U CN201020654664 U CN 201020654664U CN 201926620 U CN201926620 U CN 201926620U
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- 239000000523 sample Substances 0.000 title claims abstract description 93
- 238000005259 measurement Methods 0.000 title claims abstract description 44
- 230000003287 optical effect Effects 0.000 title claims abstract description 41
- 238000004140 cleaning Methods 0.000 title claims abstract description 40
- 239000007789 gas Substances 0.000 claims abstract description 100
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- 239000000463 material Substances 0.000 claims abstract description 12
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 33
- 239000003546 flue gas Substances 0.000 abstract description 33
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- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Measuring Cells (AREA)
Abstract
The utility model relates to the flue gas detecting field and provides a cleaning structure of an optical measurement probe, so as to solve the problem of poor cleaning effect of the optical measurement probe in the prior art. High-pressure gas enters into inside of a cleaning structure through a far-end lock nut connector and a near-end lock nut connector, the high-pressure gas carries out back flushing cleaning to a lens at near end through the near-end lock nut connector and a corresponding gas circuit transition piece near-end pore, a near-end connecting gas pipe, a window lens seat pore, a near-end annular gas circuit groove and a window lens hole; high-pressure gas enters into the other end of the probe to carry out back flushing cleaning to a reflection lens, a flexible filter material, a dust-proof cover and a drain hole of the dust-proof cover through the far-end lock nut connector and a corresponding gas circuit transition piece far-end pore, a far-end connecting gas pipe and a raw-end gas pipe. By adopting the embodiment of the utility model, the internal parts of the optical measurement probe can be completely cleaned, so that a detecting system can accurately detect flue gas.
Description
It is 201020539957.0 that the application requires on September 25th, 2010 to submit Patent Office of the People's Republic of China, application number to, and denomination of invention is the right of priority of the Chinese patent application of " a kind of cleaning structure of optical measurement probe ", and its full content is by reference in conjunction with in this application.
Technical field
The utility model relates to the flue gas detection range, particularly the cleaning structure of popping one's head in about a kind of optical measurement.
Background technology
Because increasing the weight of day by day and human attention for environmental problem of environmental pollution, the blowdown continuous monitoring technology of pollution source is grown up.
Begin to use the extraction-type continuous emission monitoring system of flue gas seventies in 20th century, wherein be divided into two kinds again: extract monitoring system and dilution extraction monitoring system fully.
Extracting monitoring system fully is from flue fume extraction to be come out, and flows to analyser through the pipeline of long distance and measures.Flue gas will pass through many processing before measuring, to filter the filtering particle after at first extracting, in order to prevent condensate water, need be to the pipeline heating of long distance, need the fast cooling dehydration before entering analyser, system needs pipeline, valve, cooling device, heating tube, aspiration pump and gas delivery and adjusting parts, system complex, the failure rate height causes SO simultaneously inevitably when dehydration
2Dissolving produces SO
2The measurement of concetration error.
Dilution is extracted monitoring system and is extracted SO in the monitoring system fully for solving
2The concentration loss of dissolving, the flue gas of taking to extract passes through the dilution of drying nitrogen hundreds of times, moisture in the flue gas is significantly reduced, make it can not produce condensation, but because the variation of the pressure of flue, temperature, component, particularly the generation of probe obstruction or crystal is extracted in dilution, makes dilution ratio produce error, causes SO
2Measuring error, after the vast scale dilution simultaneously, SO
2Concentration is extremely low, and very high to the sensitivity requirement of analyser, the user will bear higher instrument expense.
Extract monitoring system and need extract flue gas out flue, and flue gas is carried out pre-treatment, enter analyser at last and measure.Flue gas is through complicated pipelines and a large amount of pre-treatment processes, causes system complex, failure rate height, measuring accuracy is low and measures defectives such as the response time is long, especially works as SO
2When concentration is low, can not accurately measure.Extracting monitoring system simultaneously is external producer equipment substantially, and the product of domestic manufacturer is that the introduction external product is integrated substantially, causes problems such as after sale service is bad, maintenance cost height.
National requirements now reduces discharging energetically, and strict SO has been formulated in each department
2Emission standard is as the SO of Beijing
2Emission limit is 50mg/m
3, have only the burning low-sulfur coal, and could be up to standard through discharging after the wet desulphurization, discharge therefore that flue-gas temperature is low, high humidity, SO
2Concentration is very low, extracts the not competent SO of monitoring system in this case fully
2Measurement, monitoring system is extracted in dilution can not measure SO exactly
2
The nineties in 20th century, second generation flue gas monitoring technology was that direct monitoring system grows up, system does not need the fume extraction smoke outlet flue, only the optical measurement probe need be inserted flue, flue gas flows through probe, flue gas is passed in the ultraviolet ray of probe emission, and the mirror reflects that ultraviolet ray outreaches is returned, and passes flue gas once more, twice ultraviolet ray through flue gas is received and is converted to electric signal, because the SO in the flue gas
2Have the character that absorbs the 300nm band ultraviolet, measure and transmit and receive ultraviolet intensity difference, by analysis, can calculate SO
2Concentration.
Directly monitoring system is utilized spectral analysis technique, directly finishes SO in flue
2Measurement of concetration, its probe to be used openly, promptly flue gas directly passes probe optical measurement pond, also has to filter openly, promptly puts the ceramic filter cylinder in outside, open optical measurement pond, the particle in the flue gas enters the optical measurement pond after by filtering again.
After the flue gas analyser work long period, near the mirror surface of probe window eyeglass of near-end and far-end, the unthreaded hole structure and the hole of ceramic filter cylinder may the deposited particles thing, need to use pressurized air that above-mentioned parts are purged, to keep clean, but the cleaning structure in the prior art in the ceramic filter cylinder can not well be removed the particle on the probe internal part, causes the probe testing result inaccurate.
The utility model content
The utility model embodiment provides a kind of cleaning structure of optical measurement probe, is used for solving the problem that prior art optical measurement probe cleaning effect is not wanted.
The utility model provides a kind of cleaning structure of optical measurement probe, comprising:
The proximal lock female joint, gas circuit transition piece near-end pore, near-end relay tracheae, window eyeglass seat pore, proximal annular rim gas circuit groove, window eyeglass seat, window lens hole, window lens hole pore, eyeglass, far-end locknut joint, gas circuit transition piece far-end pore, far-end relay tracheae, far-end tracheae;
Gases at high pressure enter optical measurement probe cleaning structure from the proximal lock female joint, described gases at high pressure enter gas circuit transition near-end pore by described proximal lock female joint, enter near-end relay tracheae and window eyeglass seat pore again, described proximal annular rim gas circuit groove is communicated with described window eyeglass seat pore, described gases at high pressure enter proximal annular rim gas circuit groove, described gases at high pressure enter the window lens hole pore that is communicated with described proximal annular rim gas circuit groove under the conducting of described proximal annular rim gas circuit groove, described window lens hole pore is positioned at the side of described eyeglass towards the probe cavity, this eyeglass is connected with described window eyeglass seat, described gases at high pressure flow to described lens surface by described window lens hole pore, described window lens hole is over against the side of described eyeglass towards the probe cavity, and the described gases at high pressure described eyeglass that flowed cleans;
Described gases at high pressure flow into described far-end locknut joint too, these gases at high pressure enter described gas circuit transition piece far-end pore by described far-end locknut joint, enter into the far-end tracheae by far-end relay tracheae, described gases at high pressure enter into the other end of described optical measurement probe by described far-end tracheae, and the parts of the described optical measurement probe other end are cleaned.
According to a further aspect of the cleaning structure of a kind of optical measurement probe of the present utility model, the cylindrical wall of described far-end tracheae is sealing.
According to another further aspect of the cleaning structure of a kind of optical measurement probe of the present utility model, the described probe other end comprises:
The mirror unit pore, distal annular rim gas circuit groove, catoptron chamber, the aperture of a mirror, reflection seat;
Described gases at high pressure enter described mirror unit pore by described far-end tracheae, described distal annular rim gas circuit groove is communicated with described mirror unit pore, described gases at high pressure enter into described catoptron chamber by described distal annular rim gas circuit groove, described catoptron chamber is communicated with the described aperture of a mirror, described gases at high pressure flowed by described catoptron chamber and were positioned at catoptron on the described reflection seat, and these gases at high pressure enter in the probe cavity by the described aperture of a mirror.
According to another further aspect of the cleaning structure of a kind of optical measurement probe of the present utility model, the described probe other end also comprises: dust cover, flexible filtering material, probe air hole;
Described dust cover is socketed on described probe, after described gases at high pressure enter in the described probe cavity, by being entered in the described dust cover by described flexible filtering material behind the described probe air hole, and discharges described dust cover by the conduction hole on the dust cover.
By the utility model embodiment, can comprehensively clean the internal part of optics measuring sonde, make detection system more accurate to the detection of flue gas.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Figure 1A is depicted as the intention of a kind of flue gas probe cleaning structure of the utility model embodiment;
Figure 1B is depicted as the partial enlarged drawing of Figure 1A;
Fig. 1 C is depicted as the local square section projection view of the utility model embodiment flue gas probe cleaning structure proximal part;
Figure 2 shows that the structural representation of a kind of flue gas probe calibration structure of the utility model embodiment and probe segment thereof;
Fig. 3 A is depicted as the synoptic diagram of the utility model embodiment optical measurement probe cleaning structure at the probe other end;
Fig. 3 B is the square section projection view of Fig. 3 A;
Fig. 4 A is depicted as the concrete structure figure of a kind of optical measurement probe of the utility model embodiment cleaning structure;
Fig. 4 B is another visual angle synoptic diagram of Fig. 4 A cleaning structure.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Be depicted as the synoptic diagram of a kind of optical measurement probe of the utility model embodiment cleaning structure part as Figure 1A.Figure 1B is the partial enlarged drawing of Figure 1A, and label has wherein just marked a part, is used for specifically indicating the parts of Figure 1A.
It among the figure part of flue gas probe, calibration structure comprises proximal lock female joint 101, gas circuit transition piece near-end pore 102, near-end relay tracheae 103, window eyeglass seat pore 104, proximal annular rim gas circuit groove 105, window eyeglass seat 106, window lens hole 107, window lens hole pore 108, eyeglass 109.
In probe, detect the right side of light from accompanying drawing and enter in the inner cavity of left side probe, carry out flue gas of the prior art and detect by eyeglass 109, window lens hole 107.
In the utility model embodiment, utilize gases at high pressure, flue gas pressures height in the pressure ratio probe cavity of these gases at high pressure, it for example is pure pressure-air, enter the flue gas probe calibration structure from proximal lock female joint 101, described gases at high pressure enter gas circuit transition near-end pore 102 by described proximal lock female joint 101, enter near-end relay tracheae 103 and window eyeglass seat pore 104 again, described proximal annular rim gas circuit groove 105 is communicated with described window eyeglass seat pore 104, described gases at high pressure enter proximal annular rim gas circuit groove 105, described gases at high pressure enter the window lens hole pore 108 that is communicated with described proximal annular rim gas circuit groove 105 (shown in Fig. 1 C under the conducting of described proximal annular rim gas circuit groove 105, wherein illustrated window eyeglass seat pore 104, proximal annular rim gas circuit groove 105, window lens hole pore 108 and window lens hole 107), described window lens hole pore 108 is positioned at the side of described eyeglass 109 towards described probe cavity, this eyeglass 109 is connected with described window eyeglass seat 106, be fixed in described probe, described gases at high pressure flow to described eyeglass 109 surfaces by described window lens hole pore 108, described window lens hole 107 is over against the side of described eyeglass towards the probe cavity, and described gases at high pressure flowed and enter in the described probe cavity by described window lens hole 107 after the described eyeglass 109.
Described gases at high pressure can play the effect on cleaning eyeglass 109 surfaces when flowing described eyeglass 109 by window lens hole pore 108.
Be illustrated in figure 2 as the synoptic diagram of a kind of optical measurement probe of the utility model embodiment cleaning structure another part.
Comprise far-end locknut joint 201, gas circuit transition piece far-end pore 202, far-end relay tracheae 203, far-end tracheae 204, probe cavity 205, window eyeglass seat 206, eyeglass 207.
The gases at high pressure that flow into above-mentioned proximal lock female joint flow into described far-end locknut joint 201 too, these gases at high pressure enter described gas circuit transition piece far-end pore 202 by described far-end locknut joint 201, enter into far-end tracheae 204 by far-end relay tracheae 203 then, the cylindrical wall of described far-end tracheae 204 is sealing, this far-end tracheae 204 enters into the other end of probe by described probe cavity 205, described gases at high pressure enter into the other end of described probe by described far-end tracheae 204, so that utilize described gases at high pressure to clean the interior parts of the other end of described probe.
Can clean the probe parts of the other end and the cleaning structure among above-mentioned Figure 1A and Figure 1B by above-mentioned cleaning structure and combine and comprehensively to clean the probe internal part, make probe more accurate when detecting flue gas.
Be the synoptic diagram of the utility model embodiment optical measurement probe cleaning structure as shown in Figure 3A at the probe other end.
Described dust cover 301 is socketed on an end of described probe, gases at high pressure as described in Figure 2 pass described probe cavity 302 by described far-end tracheae 303 and extend to described mirror unit pore 304, described distal annular rim gas circuit groove 305 is communicated with described mirror unit pore 304, described gases at high pressure enter into described catoptron chamber 306 by described distal annular rim gas circuit groove 305, catoptron 311 is positioned at described catoptron chamber 306, and place on the described reflection seat 308, described catoptron chamber 306 is communicated with the described aperture of a mirror 307, described gases at high pressure enter in the described probe cavity 302 by flowed described catoptron 311 and the aperture of a mirror 307 of described catoptron chamber 306, wherein above-mentioned mirror unit pore 304, distal annular rim gas circuit groove 305, catoptron chamber 306, the structural relation of the aperture of a mirror 307 and flexible filtering material 309 is shown in Fig. 3 B.Described gases at high pressure can clean the particle of described catoptron 311 surfaces and window lens hole, to reach the effect that improves reflecting effect.
After described gases at high pressure enter in the described probe cavity 302, air hole 310 backs by described probe are entered in the described dust cover 301 by described flexible filtering material 309, and discharge described dust cover by the conduction hole on the dust cover 301 (owing to accompanying drawing cross section reason is not shown), can carry out blowback to probe air hole 310, flexible filtering material 309 and dust cover 301 by flowing of above-mentioned gases at high pressure, reach cleaning on it particle or the purpose of other impurity.
Wherein said flexible material is around comprising the probe pipe, its surface is for having the polytetrafluoroethylene film of micropore, microporous membrane filtration falls particle and relatively large drop, the flue gas that contains than droplet enters into flexible filtering material inside, filtering is than droplet again for inner long fibre fabric, and the flue gas that enters the probe cavity by conduction hole only contains fine droplet at last.
Be depicted as the specific embodiment of a kind of optical measurement of the utility model embodiment probe cleaning structure as Fig. 4 A, Fig. 4 B is another visual angle synoptic diagram of Fig. 4 A cleaning structure.
Described gases at high pressure 401 enter into cleaning structure inside by far-end locknut joint 402 and proximal lock female joint 403, described gases at high pressure 401 are by proximal lock female joint 403 and corresponding gas circuit transition piece near-end pore, near-end relay tracheae, window eyeglass seat pore, proximal annular rim gas circuit groove and window lens hole carry out the blowback cleaning to the eyeglass of near-end, and discharge described near-end cleaning structure by window lens hole pore; Described gases at high pressure 401 are by the what corresponding gas circuit transition piece far-end pore of far-end locknut joint 402, far-end relay tracheae and far-end tracheae 407 enter into the other end of probe to reflecting optics, flexible filtering material 404, the conduction hole 406 of dust cover 405 and dust cover carries out the blowback cleaning, with realization whole probe is cleaned, in Fig. 4 B, also comprise well heater 409, this well heater 409 can be with the flue gas heating that enters in the probe cavity, preferable can be heated to 150 degrees centigrade, like this can be so that the smile droplet evaporation by the filter probe structure is a water vapor in the flue gas, to reduce drop to the interference in the light detection.Also comprise temperature sensor 408 in Fig. 4 A, the temperature data of this temperature sensor 408 in can the acquisition probe cavity is to control the heating of described well heater 409.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is an embodiment of the present utility model; and be not used in and limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. the cleaning structure of optical measurement probe is characterized in that comprising:
The proximal lock female joint, gas circuit transition piece near-end pore, near-end relay tracheae, window eyeglass seat pore, proximal annular rim gas circuit groove, window eyeglass seat, window lens hole, window lens hole pore, eyeglass, far-end locknut joint, gas circuit transition piece far-end pore, far-end relay tracheae, far-end tracheae;
Gases at high pressure enter optical measurement probe cleaning structure from the proximal lock female joint, described gases at high pressure enter gas circuit transition near-end pore by described proximal lock female joint, enter near-end relay tracheae and window eyeglass seat pore again, described proximal annular rim gas circuit groove is communicated with described window eyeglass seat pore, described gases at high pressure enter proximal annular rim gas circuit groove, described gases at high pressure enter the window lens hole pore that is communicated with described proximal annular rim gas circuit groove under the conducting of described proximal annular rim gas circuit groove, described window lens hole pore is positioned at the side of described eyeglass towards optical measurement probe cavity, this eyeglass is connected with described window eyeglass seat, described gases at high pressure flow to described lens surface by described window lens hole pore, pop one's head in over against described eyeglass towards an optical measurement side of cavity of described window lens hole, described gases at high pressure flow and clean through described eyeglass and window lens hole;
Described gases at high pressure flow into described far-end locknut joint too, these gases at high pressure enter described gas circuit transition piece far-end pore by described far-end locknut joint, enter into the far-end tracheae by far-end relay tracheae, described gases at high pressure enter into the other end of described optical measurement probe by described far-end tracheae, and the parts of the described optical measurement probe other end are cleaned.
2. the cleaning structure of a kind of optical measurement probe according to claim 1 is characterized in that, the cylindrical wall of described far-end tracheae is sealing.
3. the cleaning structure of a kind of optical measurement probe according to claim 1 is characterized in that, the described optical measurement probe other end comprises:
The mirror unit pore, distal annular rim gas circuit groove, catoptron chamber, the aperture of a mirror, reflection seat;
Described gases at high pressure enter described mirror unit pore by described far-end tracheae, described distal annular rim gas circuit groove is communicated with described mirror unit pore, described gases at high pressure enter into described catoptron chamber by described distal annular rim gas circuit groove, described catoptron chamber is communicated with the described aperture of a mirror, described gases at high pressure flowed by described catoptron chamber and were positioned at catoptron on the described reflection seat, and these gases at high pressure enter in the optical measurement probe cavity by the described aperture of a mirror.
4. the cleaning structure of a kind of optical measurement probe according to claim 3 is characterized in that,
The described optical measurement probe other end also comprises: dust cover, flexible filtering material, probe air hole;
Described dust cover is socketed on described optical measurement probe, after described gases at high pressure enter in the described optical measurement probe cavity, by entering in the described dust cover by described flexible filtering material behind the described optical measurement probe air hole, and discharge described dust cover by the conduction hole on the dust cover.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206546647U CN201926620U (en) | 2010-09-25 | 2010-12-10 | Cleaning structure of optical measurement probe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020539957.0 | 2010-09-25 | ||
| CN201020539957 | 2010-09-25 | ||
| CN2010206546647U CN201926620U (en) | 2010-09-25 | 2010-12-10 | Cleaning structure of optical measurement probe |
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| CN201926620U true CN201926620U (en) | 2011-08-10 |
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| CN103884686A (en) * | 2012-12-19 | 2014-06-25 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Arrangement for optical measuring of one or more physical, chemical and/or biological, process variables of a medium |
| CN105442109A (en) * | 2015-12-29 | 2016-03-30 | 安普科技有限公司 | Spark detection device with self-cleaning function |
| CN105618429A (en) * | 2014-11-04 | 2016-06-01 | 佛山市南华仪器股份有限公司 | Clean air blowing mechanism of stationary pollution source particulate matter monitor |
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| CN103884686A (en) * | 2012-12-19 | 2014-06-25 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Arrangement for optical measuring of one or more physical, chemical and/or biological, process variables of a medium |
| CN103884686B (en) * | 2012-12-19 | 2017-09-08 | 恩德莱斯和豪瑟尔分析仪表两合公司 | The device of one or more physics of optical measurement medium, chemistry and/or bioprocess variable |
| US10495509B2 (en) | 2012-12-19 | 2019-12-03 | Endress+Hauser Conducta Gmbh+Co. Kg | Arrangement for optical measuring of one or more physical, chemical and/or biological, process variables of a medium |
| CN105618429A (en) * | 2014-11-04 | 2016-06-01 | 佛山市南华仪器股份有限公司 | Clean air blowing mechanism of stationary pollution source particulate matter monitor |
| CN105618429B (en) * | 2014-11-04 | 2017-12-29 | 佛山市南华仪器股份有限公司 | A kind of stationary source particle monitoring instrument clean air blowing mechanism |
| CN105442109A (en) * | 2015-12-29 | 2016-03-30 | 安普科技有限公司 | Spark detection device with self-cleaning function |
| CN108226096A (en) * | 2016-12-13 | 2018-06-29 | 天津朗思世纪科技发展有限公司 | A kind of forward scattering type visibility meter |
| CN107185868B (en) * | 2017-06-23 | 2019-05-31 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Cylindricality underwater detectoscope enclosed globe shade cleaning and protecting device |
| CN107185868A (en) * | 2017-06-23 | 2017-09-22 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Cylindricality underwater detectoscope enclosed globe shade cleaning and protecting device |
| CN108226042A (en) * | 2018-02-13 | 2018-06-29 | 天津同阳科技发展有限公司 | Speculum purifier and its method |
| CN108226042B (en) * | 2018-02-13 | 2023-11-10 | 天津同阳科技发展有限公司 | Mirror cleaning device and method thereof |
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| CN114951144A (en) * | 2022-07-27 | 2022-08-30 | 苏州普尚信息技术有限公司 | Based on spout STREAMING intelligent instrument production is with inside dust clean-up equipment |
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