CN105606500A - Flue gas detecting apparatus - Google Patents
Flue gas detecting apparatus Download PDFInfo
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- CN105606500A CN105606500A CN201510823760.7A CN201510823760A CN105606500A CN 105606500 A CN105606500 A CN 105606500A CN 201510823760 A CN201510823760 A CN 201510823760A CN 105606500 A CN105606500 A CN 105606500A
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- light
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- emitting tube
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Abstract
The invention discloses a flue gas detection apparatus, comprising a light transmitter, which is located at one end of one detector and applicable to transmitting laser beam to a detection pipeline; the detection pipeline, wherein one end of the detection pipeline is connected with the light transmitter through a light transmitting pipeline, the other end of the detection pipeline is provided with a light absorbing pipeline, and a gap located between the light transmitting pipeline and the light absorbing pipeline allows flue gas and dust to pass through; and the annular detector, which is located in the light absorbing pipeline and applicable to receiving light transmitted from the light transmitting pipeline and scattered by dust particles.
Description
Technical field
The present invention relates to flue gas field of detecting, relate in particular to a kind of smoke-detection appliance.
Background technology
Every field all has strict requirement to the particle size in gas and concentration. For example, arrange in factoryPut in the chimney of flue gas, owing to there being a large amount of dust granules to exist, before flue gas is discharged, need further inspectionSurvey. At present, the frequent method using mainly: by the fume extraction in chimney out, be heated to dewfallPoint temperature makes water-drop evaporation above, then under dry flue gas condition, measures the concentration of particle by detector.In the time that detector detects, for example laser beam of launching in detector is after dust granules scatteringArrive speculum, speculum in light absorption conduit, is arranged on the biography in light absorption conduit by beam reflectionSensor is further converted into the signal of telecommunication by optical signal. But, in the time of reflection from lens light beam, can lose oneLight splitter, causes the accuracy detecting to decline.
Summary of the invention
Given this, the invention provides a kind of smoke-detection appliance, with try hard to solve or at least alleviate aboveThe problem existing.
According to an aspect of the present invention, provide a kind of smoke-detection appliance, having comprised: optical transmitting set,Be positioned at one end of detecting devices, be suitable for transmitting a light beam to detection pipeline; Detect pipeline, this detection pipelineOne end is connected with optical transmitting set by light-emitting tube road, and the other end is provided with light absorption pipeline, light-emitting tubeGap between road and light absorption pipeline is passed through for exhaust gas dust; Annular detector, is positioned at light absorption pipelineIn, be suitable for receiving that light-emitting tube road penetrates, light after exhaust gas dust scattering.
Alternatively, in smoke-detection appliance according to the present invention, annular detector surrounding is distributed with multipleProbe unit, probe unit is apart from the center preset distance of annular detector, and around annular detectorArrange at center.
Alternatively, in smoke-detection appliance according to the present invention, annular detector is perpendicular to light absorption pipeThe center line in road.
Alternatively, in smoke-detection appliance according to the present invention, the inside radius of annular detector is15mm, outer radius is 26mm.
Alternatively, in smoke-detection appliance according to the present invention, probe unit comprises circle and quadrangle.
Alternatively, in smoke-detection appliance according to the present invention, light-emitting tube road is near light absorption pipelineOne end be provided with the first baffle plate, on the first baffle plate, be provided with the first circular hole, the first side of the first baffle plate is establishedBe equipped with diffuser, diffuser, around the central rotation in light-emitting tube road, is suitable for homogenizer to scatter out.
Alternatively, in smoke-detection appliance according to the present invention, light absorption pipeline is near light-emitting tube roadOne end be provided with second baffle, on second baffle, be provided with the second circular hole, the other end of light absorption pipelineBe provided with light absorber, be suitable for absorbing light beam.
Alternatively, in smoke-detection appliance according to the present invention, detect pipeline and comprise outer cover.
According to technical scheme of the present invention, by photo-detector is set, make through exhaust gas dust particle looseLight after penetrating can directly be detected device and receive, and has reduced the loss of light beam, has increased connecing light beamReceive area, improve the accuracy of detection of flue gas.
Brief description of the drawings
In order to realize above-mentioned and relevant object, herein describe some in conjunction with description below and accompanying drawing and sayBright property aspect, the variety of way that can put into practice principle disclosed herein has been indicated in these aspects, and instituteThere are aspect and equivalent aspect thereof to be intended to fall in the scope of theme required for protection. Read in conjunction with the drawingsRead detailed description below, above-mentioned and other object of the present disclosure, Characteristics and advantages will become brighterAobvious. Spread all over the disclosure, identical Reference numeral is often referred to identical parts or element of generation.
Fig. 1 shows the schematic diagram of smoke-detection appliance 100 according to an embodiment of the invention;
Fig. 2 shows the schematic diagram that detects according to an embodiment of the invention pipeline;
Fig. 3 shows the schematic diagram of diffuser according to an embodiment of the invention; And
Fig. 4 shows the schematic diagram of annular array probe unit according to an embodiment of the invention.
Detailed description of the invention
Exemplary embodiment of the present disclosure is described below with reference to accompanying drawings in more detail. Although show in accompanying drawingExemplary embodiment of the present disclosure, but should be appreciated that and can realize the disclosure and not with various formsThe embodiment that should be set forth here limits. On the contrary, providing these embodiment is for can be more thoroughlyUnderstand the disclosure, and can be by the those skilled in the art that conveys to complete the scope of the present disclosure.
Fig. 1 is the schematic diagram of smoke-detection appliance 100 according to an embodiment of the invention.
As shown in Figure 1, smoke-detection appliance 100 comprises optical transmitting set 110, detects pipeline 120, outer cover160 detect ducted annular detector 130, light absorber 140 with being positioned at.
One end of smoke-detection appliance 100 is provided with an optical transmitting set 110, described optical transmitting set 110Be used for transmitting a light beam to detection pipeline 120. Optical transmitting set 110 can be generating laser. But shouldWork as understanding, the present invention is not subject to the restriction of optical transmitting set type, all light transmittings that can realize transmitting light beamDevice is all in protection scope of the present invention.
What be connected with optical transmitting set 110 is detection pipeline 120, and described detection pipeline 120 is for detection of exampleAs the concentration of flue gas particle in chimney. Described detection pipeline 120 outsides are provided with outer cover 160, for example,Metal housing.
Fig. 2 shows the schematic diagram of detection pipeline according to an embodiment of the invention.
As shown in Figure 2, detect pipeline 120 and generally comprise light-emitting tube road 122 and light absorption pipeline 123.
Light-emitting tube road 122 is arranged in the one end near the detection pipeline 120 of optical transmitting set 110, with lightTransmitter 110 connects. Light-emitting tube road 122 is provided with the first gear near one end of light absorption pipeline 123On plate 124, the first baffle plates 124, be provided with the first circular hole, light beam can penetrate by described the first circular hole.
Fig. 3 shows the schematic diagram of diffuser according to an embodiment of the invention.
As shown in Figure 3, also comprise diffuser 150 in light-emitting tube road 122, diffuser 150 is positioned atThe first side of one baffle plate 124, that is, first the light beam that optical transmitting set penetrates carries out astigmatism through diffuser, soPenetrate by the first circular hole. In light-emitting tube road, be provided with a metallic rod, metallic rod and light-emitting tube roadCenter line parallel, described diffuser is fixed in metallic rod, and can rotate around metallic rod. Described looseLight device plays astigmatism effect, makes the light beam penetrating via optical transmitting set 110 can carry out scattering, unlikelyIn concentrations in a direction, reach the object that homogenizer is shed. In this diffuser, can establishBe equipped with three astigmatic lenses, in actual applications, can select to be applicable to astigmatic lens according to different light sources.But should be appreciated that the present invention is limited to above-mentioned diffuser, all homogenizer can being scattered outDiffuser is all within protection scope of the present invention.
Be provided with light absorption pipeline 123 at beam direction and light-emitting tube road 122 at a distance of preset distance, onState the i.e. gap hereinafter of preset distance, can determine as the case may be. Light absorption pipeline 123 and light transmittingGap in the middle of pipeline 122 is for passing through flue gas 210 (as shown in Figure 2), the dust granules in flue gasA part of light that light-emitting tube road 122 can be penetrated carries out scattering, the light after flue gas particle scattering withAnd light beam can enter light absorption pipeline 123.
Light absorption pipeline 123 is provided with second baffle 125 near the one end in light-emitting tube road, can preventFlue gas particle enters light absorption pipeline affects accuracy of detection. On second baffle 125, be provided with the second circular hole,Light after dust granules scattering and light beam can enter light absorption pipeline by the second circular hole, to carry outFlue gas particle concentration detects. Wherein, the first circular hole in light-emitting tube road and light absorption ducted secondCircular hole equal and opposite in direction.
Enter the annular detector 130 that the scattered light in light absorption pipeline 123 can be arranged on wherein and receive,Described annular detector 130 has a light receiving surface, the optical signal receiving can be converted into telecommunicationsNumber, to detect the concentration of dust granules in flue gas. This set, has also increased the receiving area of light beam,Improve the accuracy of detection of dust concentration.
In light absorption pipeline 123, be also provided with the 3rd baffle plate 126, described the 3rd baffle plate 126 is positioned at secondOne side of baffle plate 125, for stationary annular detector 130, described annular detector 130 and light absorptionThe center line of pipeline 123 is vertical. The interior ring radius of annular detector 130 is 15mm, and outer shroud radius is26mm. Usually, annular detector 130 can be electronic component. But should be appreciated that the present invention notBe subject to the restriction of annular detector shape, all detectors that can realize the arbitrary shape that receives light all existIn protection scope of the present invention.
Fig. 4 shows the schematic diagram of annular array probe unit according to an embodiment of the invention.
According to a kind of embodiment, annular detector can adopt at surrounding multiple probe units 310 that distributeForm, for example, 10 probe units distribute. Probe unit 310 is also electronic component. Probe unit310 shape can be circle or quadrangle, for example, and square (as Fig. 4). Described probe unit310 can arrange around the center of annular detector, and each probe unit 310 distance annular is visitedCe Qi center preset distance, the size of each probe unit 310 can be visited according to annular in practical applicationSurvey the difference of ring and outer shroud radius in device and determine, for example, probe unit be shaped as circle time, circular detectionThe diameter of unit is the poor of interior ring and outer ring diameter. Adopt this arrangement mode, can make the spy of arrangingMeasurement unit has the effect of a light receiving surface of annular detector. But should be appreciated that do not invent not limitedIn the restriction of probe unit shape and arrangement mode, the shape of all probe units that can realize above-mentioned effectShape and arrangement mode are all within protection scope of the present invention.
Light beam after dust granules scattering in gap may not necessarily all be absorbed, and remaining light beam can passCircular hole in the middle of annular detector, is arranged on the last light absorber of light absorption pipeline 140 and absorbs, and keeps awayExempt to be reflected by the ducted object of light absorption, affect accuracy of detection.
One end away from light-emitting tube road 122 of light absorption pipeline 123 is also provided with metal connection parts,For fixing described smoke-detection appliance. Light-emitting tube road 122 and light absorption pipeline 123 can be via goldBelong to tube connector and connect, also can divide and be arranged. For example, in the time using this flue gas inspection equipment, canBeing fixed on building to equipment, directly flue gas is detected, and when light-emitting tube road 122 HesWhen 123 points, light absorption pipeline is arranged, one end of the metal connection parts that light absorption pipeline 123 arranges canSo that this equipment is fixed on building, light-emitting tube road 122 supports by for example support.
According to an embodiment, this dust checkout equipment is generally applied in industry and flue operating mode, is applicable toIn lower than dew point (cold smoke road condition) or have water droplet exist under granular material discharged measurement. When use, headFirst will be from flue continuous drawing flue gas under controlled condition, the flue gas of extraction directly arrives heating vaporizer and entersRow evaporation, makes it temperature higher than dewfall point, has effectively overcome the affect problem of water droplet on accuracy of detection. ?Dry flue gas condition is used this dust checkout equipment to measure the concentration of dust granules thing, has effectively improved this flue gasThe accuracy of detection of checkout equipment.
According to technical scheme of the present invention, by photo-detector is set, make after exhaust gas dust scatteringLight can directly be detected device receive, reduced the loss of light, increased the receiving area of light beam,Improve the accuracy of detection of flue gas.
In the description that provided herein, a large amount of details are described. But, can understand, thisInventive embodiment can be put into practice in the situation that there is no these details. In some instances, andBe not shown specifically known method, structure and technology, so that not fuzzy understanding of this description.
Similarly, should be appreciated that in order to simplify the disclosure and to help to understand in each inventive aspectOr multiple, in the above in the description of exemplary embodiment of the present invention, each feature of the present invention is sometimesBe grouped together into single embodiment, figure or in its description. But, should be by the disclosureMethod be construed to the following intention of reflection: the present invention for required protection requires than in each claimThe more features of the middle feature of clearly recording. Or rather, as below claims reflectedLike that, inventive aspect is to be less than all features of disclosed single embodiment above. Therefore, follow toolClaims of body embodiment are incorporated to this detailed description of the invention thus clearly, and wherein each right is wantedAsk itself all as independent embodiment of the present invention.
Those skilled in the art are to be understood that module or the list of the equipment in example disclosed hereinUnit or assembly can be arranged in as in the equipment described in this embodiment, or alternatively can locateIn the one or more equipment different from equipment in this example. Module in foregoing example can combineBe a module or can be divided in addition multiple submodules.
Those skilled in the art are appreciated that and can carry out certainly the module in the equipment in embodimentChange adaptively and they are arranged in one or more equipment different from this embodiment. CanModule in embodiment or unit or assembly are combined into a module or unit or assembly, and in addition canTo put them into multiple submodules or subelement or sub-component. Except such feature and/or process orAt least some in unit are, outside mutually repelling, can adopt any combination (to comprise companion to this descriptionWith claim, summary and accompanying drawing) in disclosed all features and so disclosed any method orAll processes or the unit of person's equipment combine. Unless clearly statement in addition, this description (comprises companionWith claim, summary and accompanying drawing) in disclosed each feature can be by providing identical, being equal to or phaseAlternative features like object replaces.
In addition, although those skilled in the art will appreciate that embodiment more described herein comprise itIncluded some feature instead of further feature in its embodiment, but the group of the feature of different embodimentClose and mean within scope of the present invention and form different embodiment. For example, power belowIn profit claim, the one of any of embodiment required for protection can make with combination arbitrarilyWith.
In addition, some in described embodiment this be described as can be by the processor of computer system orThe method that person is implemented by other device of carrying out described function or the combination of method element. Therefore, there is useProcessor in the necessary instruction of implementing described method or method element is formed for implementing the method or methodThe device of element. In addition, the element described herein of device embodiment is the example as lower device: this dressPut for implementing the function performed by the element of the object in order to implement this invention.
As used in this, unless make separate stipulations, use ordinal number " first ", " second "," 3rd " etc. describes the different instances that common object only represents to relate to similar object, and notThe object that intention hint is described like this must have on upper, space of time, sequence aspect or with arbitrarilyAlternate manner give definite sequence.
Although described the present invention according to the embodiment of limited quantity, benefit from description above, thisTechnical staff in technical field understands, in the scope of the present invention of describing thus, it is contemplated that otherEmbodiment. In addition, it should be noted that the language using in this description is mainly for readable and instructionObject select, instead of select in order to explain or to limit theme of the present invention. Therefore,In the case of not departing from the scope and spirit of appended claims, for the common skill of the artThe many modifications and changes of art personnel are all apparent. For scope of the present invention, to the present inventionDisclosing of doing is illustrative, and nonrestrictive, scope of the present invention is limit by appended claimsFixed.
Claims (8)
1. a smoke-detection appliance, comprising:
Optical transmitting set, is positioned at one end of described detecting devices, is suitable for transmitting a light beam to detection pipeline;
Detect pipeline, one end of this detection pipeline is connected with optical transmitting set by light-emitting tube road, the other endBe provided with light absorption pipeline, the gap between described light-emitting tube road and light absorption pipeline is logical for exhaust gas dustCross;
Annular detector, is arranged in light absorption pipeline, be suitable for receiving light-emitting tube road penetrate, through flue gas powderLight after dirt scattering.
2. smoke-detection appliance as claimed in claim 1, described annular detector surrounding is distributed with multipleProbe unit, described probe unit is apart from the center preset distance of annular detector, and surveys around annularArrange at Qi center.
3. the smoke-detection appliance described in claim 1 or 2, described annular detector is perpendicular to lightThe center line of extraction duct.
4. smoke-detection appliance as claimed in claim 1, the inside radius of described annular detector is15mm, outer radius is 26mm.
5. smoke-detection appliance as claimed in claim 2, described probe unit comprises circle and quadrangle.
6. smoke-detection appliance as claimed in claim 1, described light-emitting tube road is near light absorption pipelineOne end be provided with the first baffle plate, on described the first baffle plate, be provided with the first circular hole, described the first baffle plateThe first side is provided with diffuser, and described diffuser, around the central rotation in light-emitting tube road, is suitable for light beam equalEven scattering out.
7. smoke-detection appliance as claimed in claim 1, described light absorption pipeline is near light-emitting tube roadOne end be provided with second baffle, on described second baffle, be provided with the second circular hole, light absorption pipeline anotherOne end is provided with light absorber, is suitable for absorbing light beam.
8. smoke-detection appliance as claimed in claim 1, described detection pipeline comprises outer cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823760.7A CN105606500B (en) | 2015-11-24 | 2015-11-24 | A kind of smoke-detection appliance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510823760.7A CN105606500B (en) | 2015-11-24 | 2015-11-24 | A kind of smoke-detection appliance |
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| CN105606500A true CN105606500A (en) | 2016-05-25 |
| CN105606500B CN105606500B (en) | 2018-10-30 |
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| CN201510823760.7A Active CN105606500B (en) | 2015-11-24 | 2015-11-24 | A kind of smoke-detection appliance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053310A (en) * | 2016-08-11 | 2016-10-26 | 北京大方科技有限责任公司 | Dust detection apparatus with foldable calibration mechanism |
| CN106124375A (en) * | 2016-08-11 | 2016-11-16 | 北京大方科技有限责任公司 | A kind of dust investigating of low transmission loss |
| US11493229B2 (en) | 2019-03-20 | 2022-11-08 | Carrier Corporation | Chamberless wide area duct smoke detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106053310A (en) * | 2016-08-11 | 2016-10-26 | 北京大方科技有限责任公司 | Dust detection apparatus with foldable calibration mechanism |
| CN106124375A (en) * | 2016-08-11 | 2016-11-16 | 北京大方科技有限责任公司 | A kind of dust investigating of low transmission loss |
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| CN106124375B (en) * | 2016-08-11 | 2019-08-02 | 北京大方科技有限责任公司 | A kind of dust investigating of low transmission loss |
| US11493229B2 (en) | 2019-03-20 | 2022-11-08 | Carrier Corporation | Chamberless wide area duct smoke detector |
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| Publication number | Publication date |
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| CN105606500B (en) | 2018-10-30 |
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Effective date of registration: 20190401 Address after: 115000 Liaoning Yingkou Liaoning (Yingkou) coastal industrial base, new Union Street 1 East. Patentee after: Dafang Science and Technology (Yingkou) Co., Ltd. Address before: Room 318, Building 57, 12 South College Road, Haidian District, Beijing, 100875 Patentee before: Beijing Define technology Co., Ltd. |
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