CN104741229A - Electrostatic dust-removing testing device for tunnel or subway - Google Patents
Electrostatic dust-removing testing device for tunnel or subway Download PDFInfo
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- CN104741229A CN104741229A CN201510087083.7A CN201510087083A CN104741229A CN 104741229 A CN104741229 A CN 104741229A CN 201510087083 A CN201510087083 A CN 201510087083A CN 104741229 A CN104741229 A CN 104741229A
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Abstract
The invention provides an electrostatic dust-removing testing device for a tunnel or a subway. The electrostatic dust-removing testing device comprises a mixing box, wherein an inlet of the mixing box is a polluting-gas inlet; the mixing box, the electrostatic dust-removing section and a fan installing section are sequentially connected in series; a flow distributing plate, a rectifying grid and an electrostatic dust remover are sequentially arranged in the electrostatic dust-removing section; the flow distributing plate is close to one side of the mixing box; a fan is arranged in the fan installing section; and an outlet of the fan installing section is a clean-gas outlet. The electrostatic dust-removing testing device provided by the invention has the advantages that the defects in the prior art are overcome, particulate matters in polluted air can be effectively removed under the premise that the uniformity of air flowing through the dust remover is ensured, the cleanness of the gas from the outlet is guaranteed, and simultaneously the dust removing efficiency is improved. Therefore, the electrostatic dust-removing testing device provided by the invention can be applied to practical engineering of air purification at roads, tunnels or subways.
Description
Technical field
The present invention relates to a kind of tunnel or subway electrostatic precipitation experimental rig, belong to tunnel or subway air purification techniques field.
Background technology
Along with developing rapidly of national economy transportation, the length of vcehicular tunnel and quantity are also in continuous increase.For major long tunnel, automobile, diesel vehicle in the process of moving imperfect combustion can produce the pollution gas of high concentration, mainly comprise particle PM, carbon monoxide CO, nitrogen oxide NO
x, hydrocarbon HC, sulfur dioxide SO
2deng, also have the airborne dust that produces in the process of moving of vehicle in addition, and tunnel is partial closure, overall semi-enclosed space structure, pollutant is not easily discharged in the external world and goes, and these waste gas components healthy and traffic safety can bring potential safety hazard to driver and conductor.
At present, internal contamination thing in tunnel is administered, mainly contains following two schemes abroad: 1. usually build upper-level winds tower at shorter tunnel exit place and carry out the air draft of Wind Volume high-altitude, install electrostatic dust collection equipment additional in wind tower, control air quality in tunnel.2. add bypass tunnel in long tunnel inside, in bypass tunnel, install dedusting and a small amount of air interchanger additional, to reduce demand and the ventilating shaft quantity of new wind, reach and reduce pollutant to the object of tunnel outer ambient influnence.But there is the difficulty of ventilating shaft construction or addressing like this, add the scheme in bypass tunnel simultaneously, engineering cost and difficulty of construction can be increased.
Domestic aspect, generally all adopts the scheme of upper-level winds tower or surface wind tower group dilution discharge process air pollutants, does not adopt in long tunnel inside the scheme purified air in bypass tunnel.Although high altitude discharge processing method effectively can reduce the air pollution in tunnel, but be only physical dilution, the object of purification treatment can not be reached, wait effect by the atmospheric environment of pollutant distribution around tunnel by diffusion, and ecological environment healthy to nearby residents are formed the harm continued.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of in tunnel or subway air cleaning system, can under the prerequisite of deduster airflow homogeneity be flow through in guarantee, particle in effective removal contaminated air, ensures the electrostatic precipitation experimental rig of the spatter property of exit gas.
In order to solve the problems of the technologies described above, technical scheme of the present invention is to provide a kind of tunnel or subway electrostatic precipitation experimental rig, it is characterized in that: comprise blending bin, blending bin entrance is pollution gas entrance, blending bin, electrostatic precipitation section, assembling section are sequentially connected in series, and flow distribution plate, honeycomb screen, electrostatic precipitator are located in electrostatic precipitation section successively, and flow distribution plate is located near blending bin side, be provided with blower fan in assembling section, the outlet of assembling section is clean air outlet.
Preferably, be provided with equidistant baffle plate in described blending bin, each baffle plate serrated vertical is arranged.
Preferably, described electrostatic precipitation test section front end is gradient tube, and flow distribution plate is located in gradient tube in the axial direction, the flow distribution plate at center and dead in line, and remaining flow distribution plate is arranged on the both sides of center flow distribution plate successively, and between adjacent flow distribution plate, spacing is equal.
Preferably, described honeycomb screen is provided with rectangle net trellis air grating.
Preferably, the support wooden case preventing from leaking electricity is lined with below described electrostatic precipitator.
Preferably, described electrostatic precipitator comprises ionized region and accumulation area, and ionized region is arranged by ionization plate and ground electrode plate equi-spaced apart and forms, and accumulation area is equidistantly arranged by several collecting plates and forms, and is provided with spacing between ionized region and accumulation area; Pollution gas, when flowing through electrostatic precipitator, first makes particle charged by ionized region, and then in accumulation area, charged particle is deposited on collecting plate according to the attracting principle of the charges of different polarity.
Preferably, described ionization plate indentation, the upper, middle and lower of described ionization plate is respectively provided with a high-pressure draw bar playing electrion and support; The upper and lower of described ground electrode plate is respectively provided with a pull bar playing ground connection and support; Described collecting plate has been provided with electric discharge and the high-pressure draw bar supported and has worked the ground connection pull bar protected and support.
When tunnel provided by the invention or subway electrostatic precipitation experimental rig use, first the pollution gas that pollution sources produce obtains preliminary mixing in baffled blending bin, pollution gas is tentatively mixed, pollution gas is successively through the shunting of flow distribution plate and the rectified action of honeycomb screen, can by further for air-flow combing, air-flow can be divided into evenly air-flow, thus ensure the uniformity of ducted air-distribution; Pollution gas is when flowing through electrostatic precipitator, and the particle first in dusty gas to power on lotus in ionization zone, by during accumulation area according to the attracting principle of different electricity, particle is deposited on collecting plate, substantially can reach the efficiency of dust collection of more than 90%; Clean air after dedusting flows through blower fan and discharges.
Device provided by the invention overcomes the deficiencies in the prior art, can under the prerequisite of deduster airflow homogeneity be flow through in guarantee, particle in effective removal contaminated air, ensure the spatter property of exit gas, improve efficiency of dust collection simultaneously, can be applicable in the Practical Project of vcehicular tunnel or subway air purification.
Accompanying drawing explanation
Fig. 1 is tunnel provided by the invention or subway electrostatic precipitation experimental rig schematic diagram;
Fig. 2 is baffle position schematic diagram;
Fig. 3 is flow distribution plate position view;
Fig. 4 is honeycomb screen schematic diagram;
Fig. 5 is electrostatic precipitator front view.
Detailed description of the invention
For making the present invention become apparent, hereby with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Fig. 1 is tunnel provided by the invention or subway electrostatic precipitation experimental rig schematic diagram, described tunnel or subway electrostatic precipitation experimental rig comprise blending bin 3, blending bin 3 entrance is pollution gas entrance 1, blending bin 3, electrostatic precipitation section 8, assembling section are sequentially connected in series, flow distribution plate 5, honeycomb screen 6, electrostatic precipitator 7 are arranged in electrostatic precipitation section 8 successively, flow distribution plate 5 is located near blending bin 3 side, blower fan 9 is arranged in assembling section, and the outlet of assembling section is clean air outlet 10.
The pollution gas that pollution sources produce imports blending bin 3 from pollution gas entrance 1 and mixes with air, composition graphs 2, arranges 3 pieces of baffle plates 2 in blending bin 3, each baffle plate 2 spacing is equal, serrated vertical is installed, and baffle plate can increase the turbulent flow of air-flow, and pollution gas is fully mixed with air.
Composition graphs 3, flow distribution plate 5 is along gradient tube 4 internal fixtion of device axis direction in electrostatic precipitation test section 8 front end, and the flow distribution plate at center and dead in line, remaining flow distribution plate is arranged on the both sides of center flow distribution plate successively, and between plate plate, spacing is even.Composition graphs 4, honeycomb screen 6 is provided with air grating, and air grating is made up of the some groups of grizzly bar 6-1 be parallel to each other and framework, and grizzly bar is arranged to rectangle net trellis, and grizzly bar limit is fixedly connected with cabinet wall.Honeycomb screen 6 is placed on flow distribution plate 5 rear end, electrostatic precipitator 7 front end.The effect of flow distribution plate 5 is shunted by mixed pollution gas, makes it become even.Pollution gas after shunting is able to further refinement by the rectified action of honeycomb screen 6 again.
The purification of particle completes in electrostatic precipitation section, is lined with support wooden case below electrostatic precipitator, prevents electric leakage.Composition graphs 5, electrostatic precipitator 7 comprises ionized region and accumulation area, and ionized region is indirectly arranged by ionization plate 14 and ground electrode plate 13 and forms, and spacing is equal between any two; Ionization plate 14 indentation, there are three high-pressure draw bar 11 plate upper, middle and lower, play electrion and supporting role; Ground electrode plate 13 is upper and lower two pull bars, 12 ground connection and supporting role.Accumulation area is equidistantly arranged by several collecting plates 15 and forms, at regular intervals between ionized region and accumulation area.Collecting plate 15 has six roots of sensation high-pressure draw bar 17 to discharge and supporting role respectively, the protection of 16, six roots of sensation ground connection pull bar and supporting role.First pollution gas makes particle charged by ionized region; In accumulation area, charged particle is deposited on collecting plate according to the attracting principle of the charges of different polarity.
Experimental rig end places blower fan 9, and to be connected with airduct by being flexible coupling before and after blower fan 9, blower fan provides power to play swabbing action, makes experimental rig be in negative pressure, prevents the pollution gas in experimental rig excessive.Final clean gas is discharged in external environment by outlet 10 under the effect of blower fan 9.
Operation principle of the present invention:
First the pollution gas that pollution sources produce obtains preliminary mixing in baffled blending bin, pollution gas is tentatively mixed, pollution gas is successively through the shunting of flow distribution plate and the rectified action of honeycomb screen, can by further for air-flow combing, air-flow can be divided into evenly air-flow, thus ensure the uniformity of ducted air-distribution; Pollution gas is when flowing through electrostatic precipitator, first the particle in dusty gas to power on lotus in ionization zone, when passing through accumulation area according to the attracting principle of different electricity, particle is deposited on collecting plate, the air-flow of uniformity can fully be attracted on collecting plate when flowing through electrostatic precipitator under the effect of high voltage source, improve the efficiency of dust collection of electrostatic precipitator, substantially can reach the efficiency of dust collection of more than 90%; Clean air after dedusting is discharged in external environment by airduct under the swabbing action of blower fan.
Claims (7)
1. a tunnel or subway electrostatic precipitation experimental rig, it is characterized in that: comprise blending bin (3), blending bin (3) entrance is pollution gas entrance (1), blending bin (3), electrostatic precipitation section (8), assembling section are sequentially connected in series, flow distribution plate (5), honeycomb screen (6), electrostatic precipitator (7) are located in electrostatic precipitation section (8) successively, flow distribution plate (5) is located near blending bin (3) side, be provided with blower fan (9) in assembling section, the outlet of assembling section is clean air outlet (10).
2. a kind of tunnel as claimed in claim 1 or subway electrostatic precipitation experimental rig, is characterized in that: be provided with equidistant baffle plate (2) in described blending bin (3), and each baffle plate (2) serrated vertical is arranged.
3. a kind of tunnel as claimed in claim 1 or subway electrostatic precipitation experimental rig, it is characterized in that: described electrostatic precipitation test section (8) front end is gradient tube (4), flow distribution plate (5) is located in gradient tube (4) in the axial direction, the flow distribution plate at center and dead in line, remaining flow distribution plate is arranged on the both sides of center flow distribution plate successively, and between adjacent flow distribution plate, spacing is equal.
4. a kind of tunnel as claimed in claim 1 or subway electrostatic precipitation experimental rig, is characterized in that: described honeycomb screen (6) is provided with rectangle net trellis air grating.
5. a kind of tunnel as claimed in claim 1 or subway electrostatic precipitation experimental rig, is characterized in that: described electrostatic precipitator (7) is lined with the support wooden case preventing from leaking electricity below.
6. a kind of tunnel as described in claim 1 or 5 or subway electrostatic precipitation experimental rig, it is characterized in that: described electrostatic precipitator (7) comprises ionized region and accumulation area, ionized region is arranged by ionization plate (14) and ground electrode plate (13) equi-spaced apart and forms, accumulation area is equidistantly arranged by several collecting plates (15) and forms, and is provided with spacing between ionized region and accumulation area; Pollution gas, when flowing through electrostatic precipitator, first makes particle charged by ionized region, and then in accumulation area, charged particle is deposited on collecting plate according to the attracting principle of the charges of different polarity.
7. a kind of tunnel as claimed in claim 6 or subway electrostatic precipitation experimental rig, it is characterized in that: described ionization plate (14) indentation, the upper, middle and lower of described ionization plate (14) is respectively provided with a high-pressure draw bar playing electrion and support; The upper and lower of described ground electrode plate (13) is respectively provided with a pull bar playing ground connection and support; Described collecting plate (15) has been provided with electric discharge and the high-pressure draw bar supported and has worked the ground connection pull bar protected and support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510087083.7A CN104741229A (en) | 2015-02-25 | 2015-02-25 | Electrostatic dust-removing testing device for tunnel or subway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510087083.7A CN104741229A (en) | 2015-02-25 | 2015-02-25 | Electrostatic dust-removing testing device for tunnel or subway |
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| CN104741229A true CN104741229A (en) | 2015-07-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626135A (en) * | 2016-03-23 | 2016-06-01 | 西南交通大学 | Tunnel dust removal device |
| CN106111341A (en) * | 2016-08-31 | 2016-11-16 | 贵阳铝镁设计研究院有限公司 | Horizontal none-disk terminal electric cleaner and method thereof |
| CN107174902A (en) * | 2017-06-23 | 2017-09-19 | 四川建源节能科技有限公司 | It is a kind of except PM2.5 air filter |
| CN107694756A (en) * | 2016-12-29 | 2018-02-16 | 大唐环境产业集团股份有限公司 | A kind of airflow uniform distribution applied to wet electrical dust precipitator entrance combines the unit |
| JP2018089566A (en) * | 2016-12-01 | 2018-06-14 | 古河産機システムズ株式会社 | Electric precipitator for tunnel construction |
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| CN1030811A (en) * | 1987-07-17 | 1989-02-01 | 戴庆超 | Furifying machine for tunnel environment |
| CN1124179A (en) * | 1994-12-09 | 1996-06-12 | 张金柱 | Cleaning device for static dust collector |
| CN201316584Y (en) * | 2008-10-29 | 2009-09-30 | 谈建民 | Air purifier for tunnels |
| CN201543505U (en) * | 2009-10-20 | 2010-08-11 | 吴福吉 | Efficient labyrinth air treatment device |
| CN102086773A (en) * | 2010-12-29 | 2011-06-08 | 上海纳米技术及应用国家工程研究中心有限公司 | Purification and ventilation device of air in tunnel |
| CN204063209U (en) * | 2014-09-11 | 2014-12-31 | 衡阳创新亿品环保科技发展有限公司 | A kind of electrostatic oil fume deaner |
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2015
- 2015-02-25 CN CN201510087083.7A patent/CN104741229A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030811A (en) * | 1987-07-17 | 1989-02-01 | 戴庆超 | Furifying machine for tunnel environment |
| CN1124179A (en) * | 1994-12-09 | 1996-06-12 | 张金柱 | Cleaning device for static dust collector |
| CN201316584Y (en) * | 2008-10-29 | 2009-09-30 | 谈建民 | Air purifier for tunnels |
| CN201543505U (en) * | 2009-10-20 | 2010-08-11 | 吴福吉 | Efficient labyrinth air treatment device |
| CN102086773A (en) * | 2010-12-29 | 2011-06-08 | 上海纳米技术及应用国家工程研究中心有限公司 | Purification and ventilation device of air in tunnel |
| CN204063209U (en) * | 2014-09-11 | 2014-12-31 | 衡阳创新亿品环保科技发展有限公司 | A kind of electrostatic oil fume deaner |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626135A (en) * | 2016-03-23 | 2016-06-01 | 西南交通大学 | Tunnel dust removal device |
| CN106111341A (en) * | 2016-08-31 | 2016-11-16 | 贵阳铝镁设计研究院有限公司 | Horizontal none-disk terminal electric cleaner and method thereof |
| JP2018089566A (en) * | 2016-12-01 | 2018-06-14 | 古河産機システムズ株式会社 | Electric precipitator for tunnel construction |
| CN107694756A (en) * | 2016-12-29 | 2018-02-16 | 大唐环境产业集团股份有限公司 | A kind of airflow uniform distribution applied to wet electrical dust precipitator entrance combines the unit |
| CN107174902A (en) * | 2017-06-23 | 2017-09-19 | 四川建源节能科技有限公司 | It is a kind of except PM2.5 air filter |
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Application publication date: 20150701 |
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