CN209372821U - A kind of high humidity low concentration dust generator - Google Patents
A kind of high humidity low concentration dust generator Download PDFInfo
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- CN209372821U CN209372821U CN201822274820.6U CN201822274820U CN209372821U CN 209372821 U CN209372821 U CN 209372821U CN 201822274820 U CN201822274820 U CN 201822274820U CN 209372821 U CN209372821 U CN 209372821U
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Abstract
The utility model discloses a kind of high humidity low concentration dust generators, are mainly made of air compressor machine (1), atomising device (3), sample gas heating device (6), sample gas detection device, dilution heating device (16), other gas distribution equipments (17) and flow control system；The flow control system includes sample introduction volume control device (2), sampling flow control device (14) and dilution flow rate control device (15)；The sample gas detection device is successively arranged air outlet (10), observation ward (9), inlet air plenum (7) and waste liquid export room (8) from top to bottom.The utility model compares tradition machinery operation preparation dust, operation stability is stronger, and concentration controllability is stronger, and more evenly, concentration generates more stable dust size by imitating " minimum discharge " dust collecting process process, especially mixed liquor atomization design.
Description
Technical field
The utility model belongs to environmental protection test equipment technical field, and in particular to a kind of high humidity low concentration dust fills
It sets.
Background technique
With the adjustment and reform of China's expanding economy and the industrial structure, Industrial Boiler, boiler of power plant and Industrial Stoves etc.
Problem of environmental pollution caused by pollution sources is further prominent, and wherein dust pollution is especially serious.In recent years, domestic coal-burning power plant
The gradually implementation of " minimum discharge " transformation is implemented, and mainly passes through bag-type dust (or electric precipitation) collaboration wet process to the improvement of dust
Desulfurization, wet electric dust-removing process, cause state's presence of pollution sources dust emission that low concentration, high humility complex conditions is presented, and on-line monitoring is difficult
It spends larger.Existing mainstream on-line monitoring product needs to carry out high-temperature gasification pretreatment to the high wet dust after sampling, to eliminate
Influence of the drop to measurement.All kinds of monitoring products need to carry out factory gauging calibration, but manufacturer be difficult to provide high humidity it is low dense
As factory test environment, the gauging calibration that causes to dispatch from the factory loses specific meaning for the operating condition of degree, and affect that instrument scene uses has
Effect property.And it is more sensitive to color, the particle size of dust using the device of optical method measurement, and under different operating condition dust face
For the indexs such as color there is also larger difference, these meterings all to dust on-line monitoring equipment bring difficulty.How preferably to simulate
The dust state of real working condition is reproduced, gauging calibration preferably is carried out to on-line monitoring equipment, becomes industry difficult point.
Chinese invention patent CN201310140290.5 discloses a kind of dust environment simulation equipment, including dust fills
It sets, wind-tunnel, deduster and blower, which can simulate the dust atmosphere of even concentration, and concentration is adjustable, utilize
The test structure that the test that the analog machine carries out product obtains is more accurate.The device can only simulate dry dust environment, uncomfortable
It should be in the simulation of high humidity low concentration dust operating condition.
Chinese invention patent CN201710590451.9 discloses dust, smoke diffusing simulating device in a kind of flue, packet
Include centrifugal blower one, pipeline, air conveyor, steam evaporator, standard gas bottle rack, dust generator and control cabinet.It should
Device generates wet dust by dust and vapor mixing, fails the dust of real simulation wet desulphurization or wet electric precipitation scene
Operating condition, and device fabrication is more complex.
In conclusion there is the dust work for being difficult to real simulation wet desulphurization or wet electric precipitation scene in prior art
The problems such as condition, is not suitable for the simulation of high humidity low concentration dust operating condition, and complicated there are device fabrication.
Utility model content
The purpose of this utility model is that in view of the deficienciess of the prior art, providing a kind of completely new high humidity low concentration
Dust generator.The utility model can imitate " minimum discharge " dust collecting process process, produce high humility dust, produce
More meet the dust atmosphere of field working conditions.
To achieve the goals above, the utility model uses following technical scheme:
A kind of high humidity low concentration dust generator is mainly examined by air compressor machine, atomising device, sample gas heating device, sample gas
Survey device, dilution heating device, other gas distribution equipments and flow control system composition；The flow control system includes
Main controller and the sample introduction volume control device being connected respectively with main controller, sampling flow control device and dilution flow rate control
Device；Sample introduction volume control device, sampling flow control device and dilution flow rate control device are controlled by main controller.Described
Main controller realizes sample introduction stream by the operation such as STM32F4 chip controls heating device, solenoid valve, flowmeter, supersonic generator
Amount control, sampling flow control dilution flow rate control and dust generation rate.The sample gas detection device is from top to bottom successively
Room is exported equipped with air outlet, observation ward, inlet air plenum and waste liquid；It is equipped with inside the atomising device for containing the mixed of mixed liquor
Close sap cavity；The atomising device is additionally provided with air inlet pipe and the gas outlet at top is arranged in, and wherein one end of air inlet pipe is located at mixed
In the mixed liquor for closing sap cavity, the other end is connected by sample introduction volume control device with the air taking port of air compressor machine；The sample gas
It is equipped with dilution chamber inside heating device, and dilution chamber sets that there are two air inlet and a gas outlets；One of them of dilution chamber
Air inlet is connected with the gas outlet of atomising device, another air inlet is connected with the gas outlet of dilution heating device, dilutes
The gas outlet of chamber is connected with inlet air plenum；The air inlet of the dilution heating device passes through dilution flow rate control device and pneumatics
The air taking port of machine is connected；The air inlet of the dilution heating device is also connected with other gas distribution equipments；Described
The top of observation ward is equipped with sensor of dust concentration and filter membrane sampling device, and filter membrane sampling device is controlled by sampling flow
Device is connected with the bleeding point of air compressor machine；The sensor of dust concentration real-time detection observes indoor dust concentration, and
It is transferred to main controller；The observation ward is additionally provided with window, tests product to be tested for being put into.
Further explanation or improvement as technical solutions of the utility model: the air outlet of the sample gas detection device is also
It is connected with an air exhausting device.Air exhausting device generates tiny structure, and guidance heating gaseous mixture passes through outlet air by inlet air plenum and observation ward
Mouth discharge.Heat gaseous mixture during rising, part vapor can be condensed under water droplet fall on waste liquid export room collect, give up
Liquid export room needs periodically to be cleaned.Similar smoke stack emission exhaust gas process is designed herein.
Further explanation or improvement as technical solutions of the utility model: the mixed liquor is the mixing of dust and water
Liquid, and the quality proportioning by controlling them carries out control dust concentration.The dust is the flue dust of discharged from coal-fired boiler
The dust collected can really reflect the dust state at scene.
Further explanation or improvement as technical solutions of the utility model: the atomising device carries out mist to mixed liquor
Change processing generates water mist (can refer to desulfurizing tower design scheme) specifically by nozzle spray or by ultrasonic ultrasonic delay line memory
Reason generates water mist.By controlling atomization speed, dust and humidity concentration can be regulated and controled.
Further explanation or improvement as technical solutions of the utility model: other described gas distribution equipment outputs are dirty
Gas is contaminated, polluted gas includes SO2,NO,CO.Other gas distribution equipments can import SO2, polluted gas and the high humility such as NO
Mix dust, the discharge operating condition at more true reflection scene.
In the present invention, dust generator is mainly supplied by air compressor machine.By sample introduction volume control device and
Dilution flow rate control device controls sample gas concentration, realizes dust concentration and the accurate fast tunable of humidity.Sample introduction volume control device
Air inlet afterwards needs to be embedded in mixed liquor, preferably mixes with water mist, while can play the role of stirring.The water mist and plus
Carrier gas after heat is mixed into sample gas heating device.Sample gas heating device similar to flue gas-flue gas in smoke gas treatment process again
Hot device (GGH) function realizes vaporization, wherein heating temperature can be set to mixing water mist preheating.
In the present invention, observation ward's design has window to be put into test convenient for product to be tested.Observation ward
Top is placed with sensor of dust concentration and filter membrane sampling device, wherein sensor of dust concentration can real-time detection go out it is internal dense
Degree, and can realize that closed loop regulates and controls dust concentration by modes such as control front end airflow thinner ratios, so as to more accurately obtain certain
The dust atmosphere of one even concentration.Filter membrane sampling device carries out the sampling of sample gas by the control of sampling flow control device, becomes powder
The tracing basis that dust concentration weighing compares.
After above-mentioned technical proposal, the utility model is more really reflected existing by simulation concrete technology flow process
Field dust emission situation provides high humidity low concentration dust detection demand environment.Mixing is accurately configured by using live flue dust
Liquid reflects live true flue dust situation.By controlling atomising device atomization speed, sample introduction volume control device and dilute is controlled
Release the uninterrupted of volume control device, quickly can accurately obtain a certain even concentration dust atmosphere and different humidity works
Condition, and closed-loop control is realized by sensor of dust concentration.The present apparatus can simulate site environment, can continuously provide for a long time
The condition of gauging calibration, for the formulations of national standard and measurement verification regulations and calibrating standard, provide can be with the experiment of reference
Device.
The main innovation of the utility model, which is selected, to be: 1. configure the mixed liquor of dust and water by quality, pass through mixed liquor
Atomization generates the gaseous mixture of water and dust, and dust is the flue dust collecting of discharged from coal-fired boiler herein.2. mixed liquor atomization packet
Containing nozzles spray atomization, ultrasonic atomization etc., tradition machinery operation preparation dust is compared, stability is stronger, and controllability is stronger, powder
More evenly, concentration control is more stable for grit diameter.3. sample introduction flow and dilution flow rate are controlled by control mixed liquor atomization speed,
The dust and humidity of various concentration can quick and precisely be modulated.4. increasing sample gas heating device and carrier gas heating device, realize
It is live more to meet scene discharge for moisture content and sample gas temperature-controllable.5. sample introduction flow is passed through inside mixed liquor and then and water mist
Stirring action, alternative tradition machinery stirring design are played in mixing.6. other polluted gas can be imported, true reflection scene
Discharge operating condition.
In the present invention, atomising device, sample gas heating device, dilution heating device, other gas distribution equipments and
The components such as flow control system can directly buy acquisition on the market or carry out according to conventional technical means in the art normal
Rule design, without being specifically designed.
Compared with prior art, the advantages of the utility model:
1. the utility model is simulated by discharging upwards after reheating vaporization after being atomized the mixed liquor of dust and water
The desulfurization process of coal-burning boiler dust collecting process, heating procedure, smoke stack emission process etc., the live high humidity low concentration of true reappearance
Dust operating condition.
2. the design that the utility model increases carrier gas adjustment sample gas concentration.
3. the utility model is by imitating " minimum discharge " dust collecting process process, especially mixed liquor atomization design, comparison
Tradition machinery operation preparation dust, operation stability is stronger, and concentration controllability is stronger, and more evenly, concentration controls more dust size
Steadily.
Detailed description of the invention
Fig. 1 is the overall structure diagram of an embodiment of the present invention.
Appended drawing reference: 1- air compressor machine；2- sample introduction volume control device；3- atomising device；4- mixing sap cavity；5- dilution chamber；
6- sample gas heating device；7- inlet air plenum；8- waste liquid exports room；9- observation ward；10- air outlet；11- air exhausting device；12- dust is dense
Spend sensor；13- filter membrane sampling device；14- sampling flow control device；15- dilution flow rate control device；16- dilution heating
Device；Other gas distribution equipments of 17-.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Embodiment:
As shown in Figure 1, a kind of high humidity low concentration dust generator, is mainly heated by air compressor machine 1, atomising device 3, sample gas
Device 6, sample gas detection device, dilution heating device 16, other gas distribution equipments 17, air exhausting device 11 and flow control system
Composition；The control system includes main controller and the sample introduction volume control device 2, the sample streams that are connected respectively with main controller
Amount control device 14 and dilution flow rate control device 15；The sample gas detection device be successively arranged from top to bottom air outlet 10,
Observation ward 9, inlet air plenum 7 and waste liquid export room 8；Air outlet 10 is connected with air exhausting device 11；It is set inside the atomising device 3
There is the mixing sap cavity 4 for containing mixed liquor；The atomising device 3 is additionally provided with air inlet pipe and the gas outlet at top is arranged in,
Wherein one end of air inlet pipe is located in the mixed liquor of mixing sap cavity 4, and the other end passes through sample introduction volume control device 2 and air compressor machine 1
Air taking port be connected；The mixed liquor is the mixed liquor of dust and water, and can by control their quality proportioning into
Row control dust concentration, dust are the flue dust collecting of discharged from coal-fired boiler and next dust；Atomising device 3 surpasses mixed liquor
Sound wave atomization process generates water mist.
It is equipped with dilution chamber 5 inside the sample gas heating device 6, and dilution chamber 5 sets that there are two air inlet and one to go out
Port；One of air inlet of dilution chamber 5 is connected with the gas outlet of atomising device 3, another air inlet and dilution are heated
The gas outlet of device 16 is connected, and the gas outlet of dilution chamber 5 is connected with inlet air plenum 7；The described dilution heating device 16 into
Port is connected by dilution flow rate control device 15 with the air taking port of air compressor machine 1；The air inlet of the dilution heating device 16
Mouth is also connected with other gas distribution equipments 17；The top of the observation ward 9 is equipped with sensor of dust concentration 12 and filter membrane
Sampling apparatus 13, and filter membrane sampling device 13 is connected by sampling flow control device 14 with the bleeding point of air compressor machine 1；Institute
The dust concentration in 12 real-time detection observation ward 9 of sensor of dust concentration stated, and it is transferred to main controller；The observation ward 9
It is additionally provided with window, tests product to be tested for being put into.
Other gas distribution equipments 17 of the present embodiment can import SO2, the polluted gas such as NO, CO and high humility dust it is mixed
It closes, the discharge operating condition at more true reflection scene.
Specific embodiment described herein is only to give an example to the utility model.The affiliated skill of the utility model
The technical staff in art field can make various modifications or additions to the described embodiments or using similar side
Formula substitution, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (6)
1. a kind of high humidity low concentration dust generator, it is characterised in that: mainly by air compressor machine (1), atomising device (3), sample gas
Heating device (6), sample gas detection device, dilution heating device (16), other gas distribution equipments (17) and flow control system
Composition；
The flow control system include main controller and the sample introduction volume control device (2) being connected respectively with main controller,
Sampling flow control device (14) and dilution flow rate control device (15)；
The sample gas detection device is successively arranged air outlet (10), observation ward (9), inlet air plenum (7) and waste liquid from top to bottom and leads
Room (8) out；
The mixing sap cavity (4) for containing mixed liquor is equipped with inside the atomising device (3)；The atomising device (3) is also
Equipped with air inlet pipe and the gas outlet that top is arranged in, wherein one end of air inlet pipe is located in the mixed liquor of mixing sap cavity (4), another
End is connected by sample introduction volume control device (2) with the air taking port of air compressor machine (1)；
Dilution chamber (5) are equipped with inside the sample gas heating device (6), and dilution chamber (5) sets that there are two air inlet and one
Gas outlet；One of air inlet of dilution chamber (5) is connected with the gas outlet of atomising device (3), another air inlet with it is dilute
The gas outlet for releasing heating device (16) is connected, and the gas outlet of dilution chamber (5) is connected with inlet air plenum (7)；
The air inlet of the dilution heating device (16) passes through the air taking port of dilution flow rate control device (15) and air compressor machine (1)
It is connected；The air inlet of the dilution heating device (16) is also connected with other gas distribution equipments (17)；
The top of the observation ward (9) is equipped with sensor of dust concentration (12) and filter membrane sampling device (13), and filter membrane is adopted
Sampling device (13) is connected by sampling flow control device (14) with the bleeding point of air compressor machine (1)；The dust concentration passes
Dust concentration in sensor (12) real-time detection observation ward (9), and it is transferred to main controller；The observation ward (9) is additionally provided with window
Mouthful, product to be tested is tested for being put into.
2. high humidity low concentration dust generator according to claim 1, it is characterised in that: the sample gas detection device
Air outlet (10) be also connected with an air exhausting device.
3. high humidity low concentration dust generator according to claim 1, it is characterised in that: the mixed liquor is dust
With the mixed liquor of water, and control dust concentration is carried out by controlling their quality proportioning.
4. high humidity low concentration dust generator according to claim 3, it is characterised in that: the dust is coal-fired pot
Flue dust collecting that fire grate is put and the dust come.
5. high humidity low concentration dust generator according to claim 1, it is characterised in that: the atomising device (3)
Atomization process is carried out to mixed liquor, generate water mist specifically by nozzle spray or generation water is handled by ultrasonic ultrasonic delay line memory
Mist.
6. high humidity low concentration dust generator according to claim 1, it is characterised in that: other described gas distributions
Device (17) output polluted gas, polluted gas includes SO2、NO、CO。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822274820.6U CN209372821U (en) | 2018-12-29 | 2018-12-29 | A kind of high humidity low concentration dust generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822274820.6U CN209372821U (en) | 2018-12-29 | 2018-12-29 | A kind of high humidity low concentration dust generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459536A (en) * | 2018-12-29 | 2019-03-12 | 徐州治鼎环境科技有限公司 | A kind of high humidity low concentration dust generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459536A (en) * | 2018-12-29 | 2019-03-12 | 徐州治鼎环境科技有限公司 | A kind of high humidity low concentration dust generator |
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