CN103485301A - Simulation system and method for suppressing road dust and reducing PM2.5 (particulate matter 2.5) - Google Patents
Simulation system and method for suppressing road dust and reducing PM2.5 (particulate matter 2.5) Download PDFInfo
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- CN103485301A CN103485301A CN201310449323.4A CN201310449323A CN103485301A CN 103485301 A CN103485301 A CN 103485301A CN 201310449323 A CN201310449323 A CN 201310449323A CN 103485301 A CN103485301 A CN 103485301A
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Abstract
The invention discloses a simulation system and method for suppressing road dust and reducing PM2.5 (particulate matter 2.5). The system comprises a road dust simulation system, a road sprinkling system and a road dust collecting and monitoring system, wherein the road dust simulation system is used for reproducing dust generated by factors such as negative pressure of automobile tires, the road sprinkling system is used for reproducing a sprinkling truck on an urban road or rainwater in snow and rain, and the road dust collecting and monitoring system is used for collecting the dust, observing change of the dust along with time after sprinkling and providing numerical values for subsequent research. The dust is reduced by simulating real road sprinkling, data are recorded by relevant instruments such as a PM2.5 tester, the test data are analyzed by the aid of the statistical theory, so that a reasonable method for reducing the PM2.5 is determined, the PM2.5 in environments can be reduced, and the system is easy to operate.
Description
Technical field
The present invention relates to a kind of reduction PM2.5(fine particle) simulation system and method, particularly relate to a kind of simulation system and method that suppresses dust on the roads reduction PM2.5 by watering.
Background technology
In recent years, China's Fast Urbanization and motor vehicle cause a large amount of pollutants to be concentrated discharging into the atmosphere.The discharge of fire coal, motor-vehicle tail-gas and airborne dust, the multiple pollutants such as SO2, nitrogen oxide (NOx), mineral aerosol and organic matter are existed simultaneously, and complicated interaction occurs so change into harm larger mainly be present in the secondary pollution in fine particle, cause China's atmosphere pollution extremely serious and complicated.
The prevention and control of air pollution work of China decades mainly concentrates on the smoke abatement and dust control aspect to industrial pollution source, oneself has obtained significant progress aspect smoke and dust eliminating technology, and received good effect, for the larger airborne dust of ambient air quality impact is paid little attention to, to have mistaken ideas because of the understanding to airborne dust on the one hand, thinking that airborne dust comes source category to bring by other, itself is not pollution sources, so as long as other source classes of improvement are just passable; On the other hand, less to composition, source, the features of pollution research of airborne dust, do not form effective control measures and method; The most key is the characteristics that airborne dust has colourless few flavor, so noticeable unlike the oil gas of the black smoke in flue dust, stack, therefore just easily out in the cold to the research of airborne dust.Airborne dust typically refers to due to natural wind or human activity, as traffic activity, construction activity etc., surface soil is kicked up and entered the dust in atmosphere, it is one of important sources of PM2.5, thereby, more and more receive people's concern, become one of focus of Study on environmental pollution now.
At present, occurred suppressing the method that dust on the roads reduces PM2.5, but generally speaking, these methods are not carried out deep research to the mechanism that reduces PM2.5, by the method for cross discipline, do not study how to reduce PM2.5 yet.
Summary of the invention
The deficiency existed for overcoming above-mentioned prior art, the present invention's main purpose is to provide a kind of simulation system and method that dust on the roads reduces PM2.5 that suppress, it is by passing through watering to dust on the roads, reduce PM2.5 in can be in very short and reach 30% left and right, and simple to operate, there is very high using value.
For reaching above-mentioned and other purpose, the present invention proposes a kind of simulation system that dust on the roads reduces PM2.5 that suppresses, and at least comprises:
The dust on the roads simulation system, the airborne dust that produced by the factor such as doughnut negative pressure;
The water sprinkling path system, for reappearing sprinkling truck on urban road or the rainwater of sleety weather;
Dust on the roads collection and monitor system, for collect airborne dust and observation after watering airborne dust over time, for follow-up research provides numerical value.
Further, this dust on the roads simulation system comprises a closed container and a blast fan, and this blast fan, for blowing toward this closed container, evokes its inner airborne dust.
Further, the pitch test specimen is set in this closed container, on this pitch test specimen, has appropriate dust, this blast fan is blown and is evoked the airborne dust on this pitch test specimen to this closed container.
Further, this closed container is cuboid, by organic glass, is made.
Further, this water sprinkling path system comprises a watering can, with this closed container, is connected, to sprinkle water on this pitch test specimen.
Further, this dust on the roads collection and monitor system comprises PM2.5 tester and temperature & relative humidity indicator or hygrometer, this PM2.5 tester is for detecting at any time the variation of PM2.5 numerical value, and this temperature & relative humidity indicator or hygrometer are for demonstrating the situation of change of simulation test procedure humidity.
Further, this temperature & relative humidity indicator or hygrometer and this PM2.5 tester are placed on this pitch test specimen.
For achieving the above object, the present invention also provides a kind of method that dust on the roads reduces PM2.5 that suppresses, and comprises the steps:
Further, in step 2, from this dust on the roads collection and monitor system obtains experimental data, experimental data is screened, reject and do not meet the data that test needs.
Further, step 1 comprises the steps:
Step 1.1 is put into closed container by the pitch test specimen, spread appropriate dust thereon, this temperature & relative humidity indicator or hygrometer are placed on the pitch test specimen with this PM2.5 tester, and start instrument and start to measure, carry out the data record at initial stage, then build this closed container top board, the good remaining exhaust opening of plug and air inlet port, utilize blast fan toward closed container toward blowing, evoke the purpose that airborne dust on this pitch test specimen reaches the simulated roadway airborne dust, observe the numerical value change of this PM2.5 tester, sprinkle water on this pitch test specimen with watering can subsequently, record watering consumption;
Step 1.2, through after a while, comes and goes and rolls for several times with roller on this pitch test specimen, continues repeating step 1.1: the simulation airborne dust, and to water sprinkling path, good this PM2.5 tester of record and this temperature & relative humidity indicator or hygroscopic data;
Step 1.3, consider that the difference of watering amount, on reducing the impact of PM2.5 speed, in different watering amount situations, respectively completes the several times test respectively, records experimental data.
Compared with prior art; a kind of simulation system and method that suppresses dust on the roads reduction PM2.5 of the present invention reduces airborne dust by the watering of simulation real road; carry out data record by pertinent instruments such as PM2.5 testers; for experimental data; with statistical theory, analyze; thereby determine the rational method that reduces PM2.5, realized reducing the purpose of PM2.5 in environment, protected environment.
The accompanying drawing explanation
Fig. 1 is a kind of system architecture diagram that suppresses the simulation system of dust on the roads reduction PM2.5 of the present invention;
To be that the present invention is a kind of suppress the structure chart of preferred embodiment that dust on the roads reduces the simulation system of PM2.5 to Fig. 2;
The top view that Fig. 3 is Fig. 2;
Fig. 4 is PM2.5 numerical value change and the graph of a relation of time in preferred embodiment of the present invention;
Fig. 5 is watering number of times and the peaked variation diagram of PM2.5 in preferred embodiment of the present invention;
Fig. 6 is the changing down figure that in preferred embodiment of the present invention, different watering amounts reduce PM2.5;
Fig. 7 is a kind of flow chart of steps that suppresses the method for dust on the roads reduction PM2.5 of the present invention.
The specific embodiment
Below, by specific instantiation accompanying drawings embodiments of the present invention, those skilled in the art can understand other advantage of the present invention and effect easily by content disclosed in the present specification.The present invention also can be different by other instantiation implemented or applied, the every details in this manual also can be based on different viewpoints and application, carries out various modifications and change not deviating under spirit of the present invention.
Fig. 1 is a kind of system architecture diagram that suppresses the simulation system of dust on the roads reduction PM2.5 of the present invention.As shown in Figure 1, a kind of simulation system that suppresses dust on the roads reduction PM2.5 of the present invention, at least comprise: dust on the roads simulation system 10, water sprinkling path system 11, dust on the roads collection and monitor system 12.
Wherein, dust on the roads simulation system 10, the airborne dust produced for reappearing factors such as being subject to the doughnut negative pressure, in the present invention, dust on the roads simulation system 10 is comprised of the blast fan of closed container and many power, closed container is cuboid, by organic glass, is made, and has the advantages such as intensity is very much not yielding; Water sprinkling path system 11, for reappearing sprinkling truck on urban road or rainwater of sleety weather etc., in the present invention, water sprinkling path system 11 is comprised of watering can, can effectively control the watering amount; Dust on the roads collection and monitor system 12, for collecting airborne dust observation, after watering, airborne dust is over time, for follow-up research provides numerical value, in the present invention, dust on the roads collection and monitor system is comprised of PM2.5 tester and temperature & relative humidity indicator (or hygrometer), the PM2.5 tester can detect the variation of PM2.5 numerical value at any time, and temperature & relative humidity indicator (or hygrometer) can demonstrate the situation of change of humidity in simulation test procedure.
Fig. 2 is a kind of structure chart of preferred embodiment that dust on the roads reduces the simulation system of PM2.5, top view that Fig. 3 is Fig. 2 of suppressing of the present invention.As shown in Figures 2 and 3, in preferred embodiment of the present invention, the closed container 5 of dust on the roads simulation system 10 is cuboid, and its size is 100cm*80cm*55cm.Be provided with pitch test specimen 1 in it, this pitch test specimen 1 has appropriate dust; The hygrometer 3 of dust on the roads collection and monitor system 12 and PM2.5 tester 4 are placed on the pitch test specimen; The blast fan 6 of dust on the roads simulation system 10 is arranged at closed container 5 one sides, by tube connector, with the air inlet port of closed container 5, is connected, and for blowing toward closed container 5, evokes the order that airborne dust on pitch test specimen 1 reaches the simulated roadway airborne dust; The watering can 2 of water sprinkling path system 11 is arranged at the opposite side of closed container 5, by tube connector, with the exhaust opening of closed container 5, is connected, for watering on pitch test specimen 1.Below will coordinate Fig. 2 and Fig. 3 to further illustrate operating principle of the present invention.
(1) pitch test specimen 1 is put into the closed container 5 of dust on the roads simulation system 10, spread appropriate dust thereon, the hygrometer 3 of dust on the roads collection and monitor system 12 and PM2.5 tester 4 are placed on pitch test specimen 1, and start instrument and start to measure, carry out the data record at initial stage, build the container top board, with the good remaining row of bottle-cover-shape rubber stopper plug (advancing) gas port, blast fan 6 is connected with air inlet port by tube connector, and watering can 2 use tube connectors and the exhaust opening of corresponding opposite side connect; Switch on power, blast fan is toward closed container toward blowing 30 seconds, evoke the purpose that airborne dust on the pitch test specimen reaches the simulated roadway airborne dust, observe the numerical value change of PM2.5 tester, with watering can, on the pitch test specimen, sprinkle water subsequently, record watering consumption, the numerical value of PM2.5 and temperature & relative humidity indicator over time.After test, open the container top board, airborne dust falls into ground.
(2) after having tested above, through after a while, with roller, on the bituminous concrete test specimen, come and go and roll three or five times, continue to repeat the test of front: the simulation airborne dust, to water sprinkling path, recorded the data of PM2.5 tester and temperature & relative humidity indicator.
(3) experimental procedure does not change, and has considered that the difference of watering amount, on reducing the impact of PM2.5 speed, in different watering amount situations, respectively completes 5 ~ 6 tests respectively, records experimental data.
Data importing computer by the PM2.5 tester of dust on the roads collection and monitor system, eliminate unwanted data, analyzed, and reaches a conclusion as follows:
Conclusion 1: after watering, test observation to data can obtain: the decline of PM2.5 changes with the time linear, as shown in Figure 4.
Conclusion 2: along with increasing of watering number of times, the maximum value of PM2.5 is reducing always, in the time of near being reduced to certain concrete numerical value, substantially no longer changes, and in each process of the test, the changing down of PM2.5 is basically identical.The constituent of PM2.5 is airborne particle, and watering can be so that a certain amount of particle be adsorbed on road surface, thereby makes the maximum value of PM2.5 reduce always, and when being adsorbed onto to a certain degree, the numerical value of PM2.5 no longer changes.As shown in Figure 5.
Conclusion 3: in 3 kinds of different watering amount situations, the speed that reduces PM2.5 in 6min is apparent in view, but difference is wherein respectively arranged, being specially (9-10) g effect the most obvious, is 32.7%, is secondly that (10-11) g reduces effect, reach 30.9%, the poorest is (8-9) g, is 28.34%, and test show that best watering amount is for (9.2-10.2) g.Specifically see Fig. 6 (abscissa in figure " 1 " represents that the watering amount is for (8-9) g, and " 2 " represent that the watering amount is for (9-10) g, and " 3 " represent that the watering amount is for (10-11) g).
To sum up can obtain as drawn a conclusion, to dust on the roads by the watering, in very short in, can reduce PM2.5 and reach 30% left and right.It is simple to operate, and technology is convenient, has very high using value.
Fig. 7 is a kind of flow chart of steps that suppresses the method for dust on the roads reduction PM2.5 of the present invention.As shown in Figure 7, a kind of method that suppresses dust on the roads reduction PM2.5 of the present invention, comprise the steps:
Below will further illustrate by a specific embodiment method of the present invention's inhibition dust on the roads reduction PM2.5.
The simulation system that reduces PM2.5 to suppressing dust on the roads simulated airborne dust, to the simulated test of water sprinkling path, utilize PM2.5 tester and the hygrometer of dust on the roads collection and monitor system to record experimental data; After simulated test completes, from dust on the roads collection and monitor system, experimental data is imported in computer, in order to enter next step research; Data in computer are screened, rejecting does not meet the data that test needs, and in the certain situation of watering amount, sets up the variation of PM2.5 numerical value and the corresponding relation of time, in contrast watering and not watering situation, the reduction situation of PM2.5, consider the reduction of PM2.5 in addition from the angle of humidity; The effective ways of PM2.5 thereby method studied of using mathematics is reduced.
Concrete, the step of simulated test further comprises the steps:
(1) the pitch test specimen is put into to the closed container of dust on the roads simulation system, spread appropriate dust thereon, temperature & relative humidity indicator and PM2.5 tester are placed on the pitch test specimen, and start instrument and start to measure, carry out the data record at initial stage, build the closed container top board, with the good remaining row of bottle-cover-shape rubber stopper plug (advancing) gas port, blast fan is connected with air inlet port by tube connector, and the watering can of corresponding opposite side connects with tube connector and exhaust opening; Switch on power, utilize blast fan toward closed container toward blowing 30 seconds, evoke the purpose that airborne dust on the pitch test specimen reaches the simulated roadway airborne dust, observe the numerical value change of PM2.5 tester, with watering can, on the pitch test specimen, sprinkle water subsequently, record watering consumption, the numerical value of PM2.5 tester and temperature & relative humidity indicator over time.After test, open the container top board, airborne dust falls into ground.
(2) through after a while, come and go and roll three or five times on the bituminous concrete test specimen with roller, continue repeating step (1): the simulation airborne dust, to water sprinkling path, recorded PM2.5 tester and hygroscopic data.
(3) difference of considering the watering amount, on reducing the impact of PM2.5 speed, in different watering amount situations, respectively completes 5 ~ 6 tests respectively, records experimental data.
In sum; a kind of simulation system and method that suppresses dust on the roads reduction PM2.5 of the present invention reduces airborne dust by the watering of simulation real road; carry out data record by pertinent instruments such as PM2.5 testers; for experimental data; with statistical theory, analyze; thereby determine the rational method that reduces PM2.5, realized reducing the purpose of PM2.5 in environment, protected environment.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any those skilled in the art all can, under spirit of the present invention and category, modify and change above-described embodiment.Therefore, the scope of the present invention, should be as listed as claims.
Claims (10)
1. one kind is suppressed the simulation system that dust on the roads reduces PM2.5, at least comprises:
The dust on the roads simulation system, the airborne dust that produced by the factor such as doughnut negative pressure;
The water sprinkling path system, for reappearing sprinkling truck on urban road or the rainwater of sleety weather;
Dust on the roads collection and monitor system, for collect airborne dust and observation after watering airborne dust over time, for follow-up research provides numerical value.
2. a kind of simulation system that dust on the roads reduces PM2.5 that suppresses as claimed in claim 1, it is characterized in that: this dust on the roads simulation system comprises a closed container and a blast fan, this blast fan, for blowing toward this closed container, evokes its inner airborne dust.
3. a kind of simulation system that dust on the roads reduces PM2.5 that suppresses as claimed in claim 2, it is characterized in that: the pitch test specimen is set in this closed container, have appropriate dust on this pitch test specimen, this blast fan is blown and is evoked the airborne dust on this pitch test specimen to this closed container.
4. a kind of simulation system that dust on the roads reduces PM2.5 that suppresses as claimed in claim 3, it is characterized in that: this closed container is cuboid, by organic glass, is made.
5. a kind of simulation system that dust on the roads reduces PM2.5 that suppresses as claimed in claim 3, it is characterized in that: this water sprinkling path system comprises a watering can, with this closed container, is connected, to sprinkle water on this pitch test specimen.
6. a kind of simulation system that dust on the roads reduces PM2.5 that suppresses as claimed in claim 5, it is characterized in that: this dust on the roads collection and monitor system comprises PM2.5 tester and temperature & relative humidity indicator or hygrometer, this PM2.5 tester is for detecting at any time the variation of PM2.5 numerical value, and this temperature & relative humidity indicator or hygrometer are for demonstrating the situation of change of simulation test procedure humidity.
7. a kind of simulation system that dust on the roads reduces PM2.5 that suppresses as claimed in claim 6, it is characterized in that: this temperature & relative humidity indicator or hygrometer and this PM2.5 tester are placed on this pitch test specimen.
8. one kind is suppressed the method that dust on the roads reduces PM2.5, comprises the steps:
Step 1, the simulation system that reduces PM2.5 to suppressing dust on the roads simulated airborne dust, to the simulated test of water sprinkling path, utilizes PM2.5 tester and the temperature & relative humidity indicator of dust on the roads collection and monitor system to record experimental data;
Step 2, obtain experimental data from this dust on the roads collection and monitor system, in the situation that the watering amount is certain, set up the variation of PM2.5 numerical value and the corresponding relation of time, the curved line relation that number of times and PM2.5 change obtains sprinkling water, work out the mechanism that reduces PM2.5, under the test of different watering amounts, obtained the numerical value of best watering amount;
Step 3, the effective ways of PM2.5 thereby utilization statistical theory and method studied are reduced.
9. a kind of method that dust on the roads reduces PM2.5 that suppresses as claimed in claim 8, it is characterized in that: in step 2, from this dust on the roads collection and monitor system obtains experimental data, experimental data is screened, reject and do not meet the data that test needs.
10. a kind of method that dust on the roads reduces PM2.5 that suppresses as claimed in claim 8, is characterized in that, step 1 comprises the steps:
Step 1.1 is put into closed container by the pitch test specimen, spread appropriate dust thereon, this temperature & relative humidity indicator or hygrometer are placed on the pitch test specimen with this PM2.5 tester, and start instrument and start to measure, carry out the data record at initial stage, then build this closed container top board, the good remaining exhaust opening of plug and air inlet port, utilize blast fan toward closed container toward blowing, evoke the purpose that airborne dust on this pitch test specimen reaches the simulated roadway airborne dust, observe the numerical value change of this PM2.5 tester, sprinkle water on this pitch test specimen with watering can subsequently, record watering consumption;
Step 1.2, through after a while, comes and goes and rolls for several times with roller on this pitch test specimen, continues repeating step 1.1: the simulation airborne dust, and to water sprinkling path, good this PM2.5 tester of record and this temperature & relative humidity indicator or this hygroscopic data;
Step 1.3, consider that the difference of watering amount, on reducing the impact of PM2.5 speed, in different watering amount situations, respectively completes the several times test respectively, records experimental data.
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| CN104084036A (en) * | 2014-06-16 | 2014-10-08 | 北京市市政工程研究院 | Method for reducing air PM2.5, and test system thereof |
| CN104237093A (en) * | 2014-10-11 | 2014-12-24 | 北京市环境保护科学研究院 | Road traffic rising dust control measure effect evaluation system and method |
| CN115094815A (en) * | 2022-06-21 | 2022-09-23 | 中科三清科技有限公司 | Sprinkling operation control method and device, electronic equipment and storage medium |
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Application publication date: 20140101 |