CN105092445A - Online monitoring device and method for PM2.5 industrial flue gas - Google Patents
Online monitoring device and method for PM2.5 industrial flue gas Download PDFInfo
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Abstract
The invention discloses an online monitoring device and method for PM2.5 industrial flue gas. The online monitoring device comprises a detection head, an integrated sensor, a layered isolation chamber, a PM2.5 detection unit, a central processor, a guide rail track, a GPRS communication module and an external display operation screen, wherein the guide rail track is used for supporting and walks in a flue gas pipeline and a dust collecting box body; the GPRS communication module is capable of measuring the coordinate point in a positioning manner; the detection head is exposed out of a flue gas channel for sampling at different heights; the integrated sensor is used for detecting the temperature, the humidity, the flow direction, the flow rate, the air pressure and the chemical components, which are initially detected by the detection head, of flue gas; the layered isolation chamber is divided into a first layered isolation chamber and a second layered isolation chamber through a PM2.5 cutter; the PM2.5 detection unit is used for detecting various physical and chemical characteristics of PM2.5 entering the second layered isolation chamber; and the central processor is used for recording, analyzing, processing and storing detected data or drawing images, and then transmitting the data or the images to the external display operation screen to carry out continuous monitoring and whole system real-time operation.
Description
Technical field
The present invention relates to a kind of on-Line Monitor Device and method thereof of PM2.5 industrial smoke, particularly relate to the purified treatment of the industry metallurgical furnace kiln high-temperature flue gas such as iron and steel, belong to PM2.5 trapping technique field.
Background technology
PM2.5 refers to that in air, diameter is less than or equal to the particle of 2.5 μm, have the advantages that particle diameter is little, specific surface area is large, be easily adsorbed with harmful toxic matter and there is very strong penetration power, bronchiole wall can be arrived at, affect respiratory health, directly endanger people healthy.In China, some essential industry city, the PM2.5 deriving from steel industry, more than three one-tenth, causes showing great attention to of people.
Clean in dust removal process at PM2.5, the homogeneity of flue gas duct distribution how, directly affects the efficiency that relevant device runs.The measuring method that the flue gas duct distribution of present boiler etc. is conventional is: in flue, set up framing scaffold according to test request, each large blower fan puts into operation, and adjustment parameter possesses test condition, and tester enters in flue, and hand-held instrument carries out data acquisition.Because setting up of framing scaffold and frame plate is more, stream field affects.Tester needs to climb framing scaffold up and down, pointwise test, and workload is comparatively large, on-the-spot test bad environments, and wind speed is large, and dust is many, not only endangers tester healthy, also there is certain potential safety hazard and detects data out of true.In field of steel metallurgy, its sinter fume Dust Capacity produced is large, and affect wide, temperature is higher, and containing hydrogen chloride (HCl), oxysulfide (SO
x), oxides of nitrogen (NO
x), the corrosive gas such as hydrogen fluoride (HF), flue-gas temperature is generally about 120 ~ 180 DEG C.In this case, in order to dedusting and measurement flue gas duct, smeltery is impossible shut-down (breakdown) mainteance also, traditional flue gas duct detects and optimization method is infeasible, this causes the equipment operating efficiency of metallurgical works not high, and its industrial fumes containing a large amount of PM2.5 manufactured cannot be processed effectively.
Although enhancing that is healthy along with the common people and environmental consciousness is paid close attention to all the more air quality, PM2.5 topic rapid temperature increases, but the research both at home and abroad for PM2.5 is also in the starting stage, except having some patents to occur to the monitoring of sphere of life PM2.5, but in conjunction with features such as metallurgy industry highly corrosive, high temperature, high energy, high speeds, specialize in the PM2.5 monitoring of industrial dedusting, detect and the result optimized of Flow Field Distribution very little.Not only there is the monitoring detection system imperfection to PM2.5 in prior art, the problems such as precision is inaccurate, also exist, equipment failure inapplicable to the process of industrial smoke, corrosion resistivity strong, the numerous complicated such as intellectuality and robotization technical barrier cannot be realized.
At present, the method measuring flue gas flow field has: (1) sound wave velocimetry, sound wave is mechanical wave, is compressional wave when propagating in gas medium.The velocity of sound is the velocity of propagation of microvariations, is linear superposition relation in a fluid with the flow velocity of medium self.(2) pitot tube determination method, is convenient to observe and understand the movement locus of air-flow and plasma jet range etc., can draws the velocity field direction collection of illustrative plates of air-flow and measure the velocity amplitude of air-flow everywhere.(3) hot line/hotting mask velocimetry, utilize heat balance principle to come average velocity and the fluctuation velocity of measurement gas, have inertia little, frequency response is wide, highly sensitive, and stream field disturbs little feature.(4) PIV particle image velocimetry method, as a kind of contactless measuring method, can record whole flow field for information about at synchronization, can obtain again one-piece construction and the transient images of Plane Fluid Field display.But above-mentioned each method has certain drawback, or inapplicable industrial applications, otherwise degree of accuracy and resolution not high, the demand that Ferrous Metallurgy flue gas ash removal and PM2.5 filter can not be met.
Summary of the invention
In order to solve the problem, the present invention aims to provide a kind of Distributed Detection, online monitoring, the on-Line Monitor Device of PM2.5 industrial smoke of intelligentized control method and method thereof, can on-line monitoring to the detection data of industrial smoke, automatically regulate the flow fieldoptimization distribution of flue.
The on-Line Monitor Device of PM2.5 industrial smoke and a method thereof, comprise detecting head, integrated sensor, layering insulated chamber, PM2.5 detecting unit, central processing unit, guide rail crawler belt, GPRS communication module and outside display operation screen, flue gas inspection module and on-line monitoring module are carried out integrated, undertaken supporting by guide rail crawler belt and walk at flue and dust-removing box inside, GPRS communication module can by the coordinate points of location survey residing for it, detecting head exposes to exhaust gases passes with differing heights and samples, the flue-gas temperature detected at first by integrated sensor detection detecting head, humidity, flow to, flow velocity, air pressure and chemical composition, layering insulated chamber is divided into first layer insulated chamber and the second layering insulated chamber by PM2.5 cutter, detect by PM2.5 detecting unit the every physics and chemistry entering the PM2.5 of the second layering insulated chamber to characterize, carry out record by the detection numerical value of central processing unit to integrated sensor and PM2.5 detecting unit, analyze, process, store or drawing image, then be transferred to outside display operation screen, to carry out continuous monitoring and total system real time operation.
Further, a kind of on-Line Monitor Device of PM2.5 industrial smoke also comprises Laser emission pole, scattered light gatherer and PIV recording instrument, sending laser by Laser emission pole shines in flue gas, flue gas particle meeting scattered beam, after the light intensity of these flue gas particle scattering is caught by scattered light gatherer, particle pulse signal can be converted to, the shades of dust-laden particle in flue gas can be measured by particle pulse signal, this is the same with integrated sensor also has corresponding measuring ability, and just detection method and principle have difference.These flue gas particle scattering light field scapes also can be captured by PIV recording instrument, carry out image production thus to the flue gas situation of flue and dust-removing box inside, can record instant change and the overall condition in whole flow field.
Further, a kind of layering insulated chamber of on-Line Monitor Device of PM2.5 industrial smoke is divided into first layer insulated chamber and the second layering insulated chamber by PM2.5 cutter, in outside flue gas≤powder dust particle of 20 μm enters first layer insulated chamber by the top layer filter membrane of detecting head, the powder dust particle of≤2.5 μm enters the second layering insulated chamber by PM2.5 cutter, every physics and chemistry of PM2.5 can characterize and detect by the PM2.5 detecting unit of the second layering insulated chamber, the detection numerical value of integrated sensor and PM2.5 detecting unit calculates result or drafting pattern picture by central processing unit.
Further, a kind of PM2.5 detecting unit of on-Line Monitor Device of PM2.5 industrial smoke is β ray detection box, the second layering insulated chamber is entered by the powder dust particle of PM2.5 cutter, the side that powder dust particle enters β ray detection box is transmitting terminal, opposite side is receiving end, β ray is decayed by particle scattering through the detection space detected in box body, can calculate the weight of PM2.5 thus.
Further, a kind of guide rail crawler belt of on-Line Monitor Device of PM2.5 industrial smoke arranges the bottom of on-Line Monitor Device, can support whole on-Line Monitor Device, and can move at each position in flue and dust-removing box; The distance that described GPRS communication module can be moved by location survey on-Line Monitor Device and residing coordinate points thereof, can know the Flow Field Distribution situation of corresponding coordinate point by the image of particle pulse signal and PIV recording instrument.
Further, a kind of on-Line Monitor Device of PM2.5 industrial smoke is except being undertaken except manual operation by outside display operation screen, also can connect self controller to automatically adjust, by central processing unit by after the Flow Field Distribution status index process of flue and dust-removing box inside, control signal is sent again to self controller, thus by the hyperchannel real-time synchronization control system of self controller control the fair water fin of flue and dust-removing box inside and blast pump keying, turn to and rotating speed, realize multiple spot, multi-way contral.
An operation method for the on-Line Monitor Device of PM2.5 industrial smoke, it is characterized in that carrying out continuity on-line monitoring and intelligent automatic adjustment, step is as follows:
(1) on-Line Monitor Device can be arranged at flue and each section of dust-removing box inside in a distributed manner or be walked at flue and dust-removing box inside by crawler belt guide rail;
(2) by the coordinate points of GPRS communication module location survey residing for it, by the sampling of detecting head, detect through integrated sensor, obtain the temperature of initial detection flue gas, humidity, the flow direction, flow velocity, air pressure and chemical composition; Caught the flow field transient image of particle pulse signal that light intensity transforms and the production of PIV recording instrument by scattered light gatherer, obtain the shades of dust-laden particle in the Flow Field Distribution shape situation of corresponding coordinate point and flue gas;
(3) the flow field transient image that particle pulse signal that light intensity transforms caught by the detection numerical value of integrated sensor and PM2.5 detecting unit, scattered light gatherer, PIV recording instrument is produced is transferred to central processing unit, by central processing unit record, analysis, process, storage or drawing image;
(4) outside display operation screen is transferred to again, to carry out continuous monitoring and total system real time operation by the result of central processing unit analyzing and processing and the image of generation.
(5) central processing unit also directly can connect self controller, by central processing unit by after the Flow Field Distribution status index process of flue and dust-removing box inside, control signal is sent directly to self controller, thus by the hyperchannel real-time synchronization control system of self controller control the fair water fin of flue and dust-removing box inside and blast pump keying, turn to and rotating speed, realize multiple spot, multi-way contral.
Further, when the on-Line Monitor Device of described a kind of PM2.5 industrial smoke detects flue gas, in outside flue gas≤powder dust particle of 20 μm enters the first layer insulated chamber of flue gas inspection device by the top layer filter membrane of detecting head, filter through PM2.5 cutter, the powder dust particle of≤2.5 μm enters the second layering insulated chamber, and every physics and chemistry of PM2.5 characterizes and detects by PM2.5 detecting unit.
Further, described PM2.5 detecting unit is β ray detection box, the second layering insulated chamber of flue gas inspection device is entered by the powder dust particle of PM2.5 cutter, the side that powder dust particle enters β ray detection box is transmitting terminal, opposite side is receiving end, β ray is decayed by particle scattering through the detection space detected in box body, calculates the weight of PM2.5 thus.
Further, described self controller can regulate fair water fin and blast pump automatically, the angle that the support bar of the scalable adjustment on it can be controlled its folding by hyperchannel real-time synchronization control system and be turned to.Blast pump can according to flue and dust-removing box Flow Field Distribution situation everywhere, controls that it is opened, closed, pressure and rotating speed by hyperchannel real-time synchronization control system.Described hyperchannel real-time synchronization control system is connected with the central processing unit of on-Line Monitor Device, and multiple spot, multi-way contral are carried out in the instruction according to central processing unit.
The on-Line Monitor Device of PM2.5 industrial smoke and a method thereof, can achieve following technique effect: (1) can provide Distributed Detection, can carry out convenient, instant detection at each position of flue and dust-removing box; (2) whole flow field can be recorded for information about at synchronization, possess precision and the resolution of single point measuring technique, one-piece construction and the transient images of Plane Fluid Field display can be obtained again; (3) online monitoring can be realized, analyze the Flow Field Distribution situation of flue and dust-removing box inside according to Testing index, carry out instantaneous and successional monitoring; (4) can intelligentized control method be realized, by central processing unit and hyperchannel real-time synchronization control system can automatically, instant control flue and dust-removing box inside fair water fin and blast pump keying, turn to.
Accompanying drawing explanation
Fig. 1 is the structural representation of the on-Line Monitor Device of a kind of PM2.5 industrial smoke of the present invention.
Wherein, 1 detecting head; 2 integrated sensors; 3 central processing units; 4 first layer insulated chambers; 5 second layering insulated chambers; 6 guide rail crawler belts; 7 Laser emission poles; 8PM2.5 cutter; 9 β ray detection boxes; 10PM2.5 detecting unit; 11GPRS communication module; 12 scattered light gatherers; 13PIV recording instrument.
Embodiment
Following examples are intended to the present invention instead of limitation of the invention further are described.
Embodiment one
The on-Line Monitor Device of PM2.5 industrial smoke and a method thereof, comprise detecting head (1), integrated sensor (2), layering insulated chamber, PM2.5 detecting unit (10), central processing unit (3), guide rail crawler belt (6), GPRS communication module (11) and outside display operation screen, flue gas inspection module and on-line monitoring module are carried out integrated, undertaken supporting by guide rail crawler belt (6) and walk at flue and dust-removing box inside, GPRS communication module (11) can by the coordinate points of location survey residing for it, detecting head (1) exposes to exhaust gases passes with differing heights and samples, the flue-gas temperature detected at first by integrated sensor (2) detection detecting head, humidity, flow to, flow velocity, air pressure and chemical composition, layering insulated chamber is divided into first layer insulated chamber (4) and the second layering insulated chamber (5) by PM2.5 cutter (8), detect by PM2.5 detecting unit the every physics and chemistry entering the PM2.5 of the second layering insulated chamber (5) to characterize, by central processing unit (3), record is carried out to integrated sensor (2) and the detection numerical value of PM2.5 detecting unit (10), analyze, process, store or drawing image, then be transferred to outside display operation screen, to carry out continuous monitoring and total system real time operation.
A kind of on-Line Monitor Device of PM2.5 industrial smoke also comprises Laser emission pole (7), scattered light gatherer (12) and PIV recording instrument (13), sending laser by Laser emission pole shines in flue gas, flue gas particle meeting scattered beam, after the light intensity of these flue gas particle scattering is caught by scattered light gatherer (12), particle pulse signal can be converted to, the shades of dust-laden particle in flue gas can be measured by particle pulse signal, this is the same with integrated sensor (2) also has corresponding measuring ability, and just detection method and principle have difference.These flue gas particle scattering light field scapes also can be captured by PIV recording instrument (13), carry out image production thus to the flue gas situation of flue and dust-removing box inside, can record instant change and the overall condition in whole flow field.
Above-mentioned layering insulated chamber is divided into first layer insulated chamber (4) and the second layering insulated chamber (5) by PM2.5 cutter (8), in outside flue gas≤powder dust particle of 20 μm enters first layer insulated chamber (4) by the top layer filter membrane of detecting head (1), the powder dust particle of≤2.5 μm enters the second layering insulated chamber (5) by PM2.5 cutter (8), every physics and chemistry of PM2.5 can characterize and detect by the PM2.5 detecting unit (10) of the second layering insulated chamber (5), integrated sensor (2) calculates result or drafting pattern picture with the detection numerical value of PM2.5 detecting unit (10) by central processing unit (3).
Above-mentioned PM2.5 detecting unit is β ray detection box (9), the second layering insulated chamber (5) is entered by the powder dust particle of PM2.5 cutter (8), the side that powder dust particle enters β ray detection box is transmitting terminal, opposite side is receiving end, β ray is decayed by particle scattering through the detection space detected in box body, can calculate the weight of PM2.5 thus.
The guide rail crawler belt (6) of above-mentioned on-Line Monitor Device arranges the bottom of on-Line Monitor Device, can support whole on-Line Monitor Device, and can move at each position in flue and dust-removing box; The distance that above-mentioned GPRS communication module (11) can be moved by location survey on-Line Monitor Device and residing coordinate points thereof, can know the Flow Field Distribution situation of corresponding coordinate point by the image of particle pulse signal and PIV recording instrument (13).
Further, a kind of on-Line Monitor Device of PM2.5 industrial smoke is except being undertaken except manual operation by outside display operation screen, also can connect self controller to automatically adjust, by central processing unit (3) by after the Flow Field Distribution status index process of flue and dust-removing box inside, control signal is sent again to self controller, thus by the hyperchannel real-time synchronization control system of self controller control the fair water fin of flue and dust-removing box inside and blast pump keying, turn to and rotating speed, realize multiple spot, multi-way contral.
Embodiment two
An operation method for the on-Line Monitor Device of PM2.5 industrial smoke, it is characterized in that carrying out continuity on-line monitoring and intelligent automatic adjustment, step is as follows:
(1) on-Line Monitor Device can be arranged at flue and each section of dust-removing box inside in a distributed manner or be walked at flue and dust-removing box inside by crawler belt guide rail (6);
(2) by the coordinate points of GPRS communication module (11) location survey residing for it, by the sampling of detecting head (1), detect through integrated sensor (2), obtain the temperature of initial detection flue gas, humidity, the flow direction, flow velocity, air pressure and chemical composition; Catch by scattered light gatherer (12) the particle pulse signal and the flow field transient image produced of PIV recording instrument (13) that light intensity transforms, obtain the shades of dust-laden particle in the Flow Field Distribution shape situation of corresponding coordinate point and flue gas;
(3) the flow field transient image that particle pulse signal that light intensity transforms caught by the detection numerical value of integrated sensor (2) and PM2.5 detecting unit (10), scattered light gatherer (12), PIV recording instrument (13) is produced is transferred to central processing unit (3), recorded by central processing unit (3), analyze, process, storage or drawing image;
(4) outside display operation screen is transferred to again, to carry out continuous monitoring and total system real time operation by the result of central processing unit (3) analyzing and processing and the image of generation.
Further, when the on-Line Monitor Device of described a kind of PM2.5 industrial smoke detects flue gas, in outside flue gas≤powder dust particle of 20 μm enters the first layer insulated chamber (4) of flue gas inspection device by the top layer filter membrane of detecting head (1), filter through PM2.5 cutter (8), the powder dust particle of≤2.5 μm enters the second layering insulated chamber (5), and every physics and chemistry of PM2.5 characterizes and detects by PM2.5 detecting unit.
Further, described PM2.5 detecting unit is β ray detection box (9), the second layering insulated chamber (5) of flue gas inspection device is entered by the powder dust particle of PM2.5 cutter (8), the side that powder dust particle enters β ray detection box is transmitting terminal, opposite side is receiving end, β ray is decayed by particle scattering through the detection space detected in box body, calculates the weight of PM2.5 thus.
Embodiment three
An operation method for the on-Line Monitor Device of PM2.5 industrial smoke, it is characterized in that carrying out continuity on-line monitoring and intelligent automatic adjustment, step is as follows:
(1) on-Line Monitor Device can be arranged at flue and each section of dust-removing box inside in a distributed manner or be walked at flue and dust-removing box inside by crawler belt guide rail (6);
(2) by the coordinate points of GPRS communication module (11) location survey residing for it, by the sampling of detecting head (1), detect through integrated sensor (2), obtain the temperature of initial detection flue gas, humidity, the flow direction, flow velocity, air pressure and chemical composition; Catch by scattered light gatherer (12) the particle pulse signal and the flow field transient image produced of PIV recording instrument (13) that light intensity transforms, obtain the shades of dust-laden particle in the Flow Field Distribution shape situation of corresponding coordinate point and flue gas;
(3) the flow field transient image that particle pulse signal that light intensity transforms caught by the detection numerical value of integrated sensor (2) and PM2.5 detecting unit (10), scattered light gatherer (12), PIV recording instrument (13) is produced is transferred to central processing unit (3), recorded by central processing unit (3), analyze, process, storage or drawing image;
(4) central processing unit (3) also directly can connect self controller, by central processing unit (3) by after the Flow Field Distribution status index process of flue and dust-removing box inside, control signal is sent directly to self controller, thus by the hyperchannel real-time synchronization control system of self controller control the fair water fin of flue and dust-removing box inside and blast pump keying, turn to and rotating speed, realize multiple spot, multi-way contral.
Further, when the on-Line Monitor Device of described a kind of PM2.5 industrial smoke detects flue gas, in outside flue gas≤powder dust particle of 20 μm enters the first layer insulated chamber (4) of flue gas inspection device by the top layer filter membrane of detecting head (1), filter through PM2.5 cutter (8), the powder dust particle of≤2.5 μm enters the second layering insulated chamber (5), and every physics and chemistry of PM2.5 characterizes and detects by PM2.5 detecting unit.
Further, described PM2.5 detecting unit is β ray detection box (9), the second layering insulated chamber (5) of flue gas inspection device is entered by the powder dust particle of PM2.5 cutter (8), the side that powder dust particle enters β ray detection box is transmitting terminal, opposite side is receiving end, β ray is decayed by particle scattering through the detection space detected in box body, calculates the weight of PM2.5 thus.
Further, described self controller can regulate fair water fin and blast pump automatically, the angle that the support bar of the scalable adjustment on it can be controlled its folding by hyperchannel real-time synchronization control system and be turned to.Blast pump can according to flue and dust-removing box Flow Field Distribution situation everywhere, controls that it is opened, closed, pressure and rotating speed by hyperchannel real-time synchronization control system.Described hyperchannel real-time synchronization control system is connected with the central processing unit (3) of on-Line Monitor Device, and multiple spot, multi-way contral are carried out in the instruction according to central processing unit (3).
Claims (10)
1. an on-Line Monitor Device for PM2.5 industrial smoke, is characterized in that comprising detecting head, integrated sensor, layering insulated chamber, PM2.5 detecting unit, central processing unit, guide rail crawler belt, GPRS communication module and outside display operation screen, flue gas inspection module and on-line monitoring module are carried out integrated, undertaken supporting by guide rail crawler belt and walk at flue and dust-removing box inside, GPRS communication module can by the coordinate points of location survey residing for it, detecting head exposes to exhaust gases passes with differing heights and samples, the flue-gas temperature detected at first by integrated sensor detection detecting head, humidity, flow to, flow velocity, air pressure and chemical composition, layering insulated chamber is divided into first layer insulated chamber and the second layering insulated chamber by PM2.5 cutter, detect by PM2.5 detecting unit the every physics and chemistry entering the PM2.5 of the second layering insulated chamber to characterize, carry out record by the detection numerical value of central processing unit to integrated sensor and PM2.5 detecting unit, analyze, process, store or drawing image, then be transferred to outside display operation screen, to carry out continuous monitoring and total system real time operation.
2. the on-Line Monitor Device of a kind of PM2.5 industrial smoke according to claim 1, characterized by further comprising Laser emission pole, scattered light gatherer and PIV recording instrument, sending laser by Laser emission pole shines in flue gas, the light intensity of flue gas particle scattering is converted to particle pulse signal after being caught by scattered light gatherer, the shades of dust-laden particle in flue gas is gone out by particle pulse measure, after scattered light scene is carried out image production by the seizure of PIV recording instrument, the flue gas changing condition of record flue and dust-removing box interior flow field.
3. the on-Line Monitor Device of a kind of PM2.5 industrial smoke according to claim 1, it is characterized in that described PM2.5 detecting unit is β ray detection box, the second layering insulated chamber is entered by the powder dust particle of PM2.5 cutter, the side that powder dust particle enters β ray detection box is transmitting terminal, opposite side is receiving end, β ray is decayed by particle scattering through the detection space detected in box body, can calculate the weight of PM2.5 thus.
4. the on-Line Monitor Device of a kind of PM2.5 industrial smoke according to claim 1 and 2, it is characterized in that described guide rail crawler belt arranges the bottom of on-Line Monitor Device, whole on-Line Monitor Device can be supported, and can move at each position in flue and dust-removing box; The distance that described GPRS communication module can be moved by location survey on-Line Monitor Device and residing coordinate points thereof, can know the Flow Field Distribution situation of corresponding coordinate point by the image of particle pulse signal and PIV recording instrument.
5. the on-Line Monitor Device of a kind of PM2.5 industrial smoke according to claim 1 and 2, it is characterized in that being connected with self controller, by central processing unit by after the Flow Field Distribution status index process of flue and dust-removing box inside, send control signal to self controller, by the hyperchannel real-time synchronization control system of self controller can control the fair water fin of flue and dust-removing box inside and blast pump keying, turn to and rotating speed.
6. an operation method for the on-Line Monitor Device of PM2.5 industrial smoke, it is characterized in that carrying out continuity on-line monitoring and intelligent automatic adjustment, step is as follows:
(1) on-Line Monitor Device can be arranged at flue and each section of dust-removing box inside in a distributed manner or be walked at flue and dust-removing box inside by crawler belt guide rail;
(2) by the coordinate points of GPRS communication module location survey residing for it, by the sampling of detecting head, detect through integrated sensor, obtain the temperature of initial detection flue gas, humidity, the flow direction, flow velocity, air pressure and chemical composition; Caught the flow field transient image of particle pulse signal that light intensity transforms and the production of PIV recording instrument by scattered light gatherer, obtain the shades of dust-laden particle in the Flow Field Distribution shape situation of corresponding coordinate point and flue gas;
(3) the flow field transient image that particle pulse signal that light intensity transforms caught by the detection numerical value of integrated sensor and PM2.5 detecting unit, scattered light gatherer, PIV recording instrument is produced is transferred to central processing unit, by central processing unit record, analysis, process, storage or drawing image;
(4) outside display operation screen is transferred to again, to carry out continuous monitoring and total system real time operation by the result of central processing unit analyzing and processing and the image of generation.
7. the operation method of the on-Line Monitor Device of a kind of PM2.5 industrial smoke according to claim 6, when it is characterized in that described on-Line Monitor Device detection flue gas, in outside flue gas≤powder dust particle of 20 μm enters the first layer insulated chamber of flue gas inspection device by the top layer filter membrane of detecting head, filter through PM2.5 cutter, the powder dust particle of≤2.5 μm enters the second layering insulated chamber, and every physics and chemistry of PM2.5 characterizes and detects by PM2.5 detecting unit.
8. the operation method of the on-Line Monitor Device of a kind of PM2.5 industrial smoke according to claim 6, it is characterized in that described PM2.5 detecting unit is β ray detection box, the second layering insulated chamber of flue gas inspection device is entered by the powder dust particle of PM2.5 cutter, the side that powder dust particle enters β ray detection box is transmitting terminal, opposite side is receiving end, β ray is decayed by particle scattering through the detection space detected in box body, calculates the weight of PM2.5 thus.
9. an operation method for the on-Line Monitor Device of PM2.5 industrial smoke, it is characterized in that carrying out continuity on-line monitoring and intelligent automatic adjustment, step is as follows:
(1) on-Line Monitor Device can be arranged at flue and each section of dust-removing box inside in a distributed manner or be walked at flue and dust-removing box inside by crawler belt guide rail;
(2) by the coordinate points of GPRS communication module location survey residing for it, by the sampling of detecting head, detect through integrated sensor, obtain the temperature of initial detection flue gas, humidity, the flow direction, flow velocity, air pressure and chemical composition; Caught the flow field transient image of particle pulse signal that light intensity transforms and the production of PIV recording instrument by scattered light gatherer, obtain the shades of dust-laden particle in the Flow Field Distribution shape situation of corresponding coordinate point and flue gas;
(3) the flow field transient image that particle pulse signal that light intensity transforms caught by the detection numerical value of integrated sensor and PM2.5 detecting unit, scattered light gatherer, PIV recording instrument is produced is transferred to central processing unit, by central processing unit record, analysis, process, storage or drawing image;
(4) central processor directly connects self controller, by central processing unit by after the Flow Field Distribution status index process of flue and dust-removing box inside, send control signal to self controller, thus by the hyperchannel real-time synchronization control system of self controller control the fair water fin of flue and dust-removing box inside and blast pump keying, turn to and rotating speed.
10. the operation method of the on-Line Monitor Device of a kind of PM2.5 industrial smoke according to claim 9, when it is characterized in that described on-Line Monitor Device detection flue gas, in outside flue gas≤powder dust particle of 20 μm enters the first layer insulated chamber of flue gas inspection device by the top layer filter membrane of detecting head, filter through PM2.5 cutter, the powder dust particle of≤2.5 μm enters the second layering insulated chamber, the situation that PM2.5 detecting unit is decayed by particle scattering through detection space according to β ray, characterizes every physics and chemistry of PM2.5 and detects.
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| CN201510572735.6A CN105092445B (en) | 2015-09-10 | 2015-09-10 | A kind of on-Line Monitor Device and its method of PM2.5 industrial smokes |
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| CN201510572735.6A CN105092445B (en) | 2015-09-10 | 2015-09-10 | A kind of on-Line Monitor Device and its method of PM2.5 industrial smokes |
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Cited By (8)
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