CN106765826A - Emission reduction environment-protecting roof ventilator - Google Patents

Emission reduction environment-protecting roof ventilator Download PDF

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Publication number
CN106765826A
CN106765826A CN201710055706.1A CN201710055706A CN106765826A CN 106765826 A CN106765826 A CN 106765826A CN 201710055706 A CN201710055706 A CN 201710055706A CN 106765826 A CN106765826 A CN 106765826A
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China
Prior art keywords
dust
weather shield
emission reduction
interior
supporting construction
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Application number
CN201710055706.1A
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Chinese (zh)
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CN106765826B (en
Inventor
单连勇
姜博
王秋英
苏延永
单连军
信卜月
杨鹏
单连勤
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Publication of CN106765826B publication Critical patent/CN106765826B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/02Roof ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

A kind of emission reduction environment-protecting roof ventilator, including supporting construction, outer casing and interior weather shield are provided with the support structure, Internal baffle is interval with the support structure, internal air baffle is respectively equipped with the interior ventilating opening formed between adjacent Internal baffle, it is located on the support structure and outer weather shield is symmetrically interval between interior weather shield both sides and outer casing, the exhaust outlet formed between adjacent outer weather shield is corresponded with Internal baffle, and outer wind deflector is respectively equipped with exhaust outlet;Outer casing inner side in both sides is located in supporting construction and is respectively equipped with water atomization plant;Eaves gutter and dust collecting trough are arranged with the support structure.Advantage is:The degraded and trapping to fine particle size dust, flue gas can be realized, with atomization degraded flue dust function, dedusting total efficiency is up to more than 95%;The collection clearing function to dust of degrading can be realized.It is applicable not only to newly-built industrial premises emission reduction Design of ventilation application, and suitable for the existing a large amount of roof ventilators of application, ventilating skylight and dormer transformation.

Description

Emission reduction environment-protecting roof ventilator
Technical field
The present invention relates to a kind of industrial premises natural ventilation of roof device, more particularly to a kind of emission reduction environment-protecting roof ventilation Device.
Background technology
Roof ventilator, ventilating skylight, dormer etc. are the natural ventilation of roof devices of energy-conservation, but in smelting iron and steel, electricity The roofing ventilation unit of solution metallurgy workshop, power generation and heat supply boiler factory building, and a large amount of industrial production factory buildings of other industry such as aluminium with Gravity-flow ventilation discharge a large amount of dust, flue gas, cause serious environmental pollution.Currently, haze is wreaked havoc, and environmental protection is bogged down in crisis, country Strengthen polluting industrial production the management and control of environment, the natural ventilation of roof devices of a large amount of discharge smoke pollution environment be forced closing and Lose workshop under the severe contamination environment such as ventilation function, high temperature, dust, flue gas, factory building cannot production operation, cause to enterprise Industry economic benefit is had a strong impact on, and environmental protection management and enterprise's production are all reflected to reducing fume emission environment-friendly function roofing nature The demand of aeration technology.
But to current, the related emission reduction environment-friendly natural aeration technology of successful Application is not referred to also, for a long time " from So ventilation can not be purified " traditional theory fettered development thinking of the people to gravity-flow ventilation emission-reduction technology, also reflects in correlation The technological difficulties that product technology development and application function is ensured, different from conventional ventilating dust-removing technology, Natural Ventilation Technology In One Green can not be because Ventilation function is lost to increase emission reduction function.
Can the key of Related product exploitation also reside in the economy that combined with existing application natural ventilation of roof technology, people Beyond affordability dismounting update a large amount of huge financial cost of existing application technology, the correlation technique of early development could not be answered With development, there is the market demand aspect reason lacked to New function technical products application awareness, also reside in and lack and above-mentioned routine The Technical Economy that aeration technology product is combined.
Nowadays Related product market demand environment possesses, and administering haze needs strict management and control gravity-flow ventilation discharge dust, cigarette Gas pollution problem, including the natural ventilation of roof of grassroot project is designed, including the largely natural ventilation of roof device of existing application Emission reduction environmental transformation, technically need badly to the in-depth of emission reduction environment-friendly function natural ventilation of roof technology exploitation.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of dust, flue gas uncontrollable discharge of can effectively reducing and subtract Row's environment-protecting roof ventilator.
To solve the above problems, the present invention is adopted the following technical scheme that:
A kind of emission reduction environment-protecting roof ventilator, including the supporting construction at roofing ventilating opening is fixed on, the supporting construction is It is formed by connecting by many vertical poles by multiple main supports, outer casing is symmetrically arranged on two with supporting construction, in the middle part of supporting construction Upper end is provided with interior weather shield, and it is characterized in that:It is spaced between two heel posts of multiple main supports on the support structure and is set There is Internal baffle, interior ventilating opening is formed between adjacent Internal baffle and internal air baffle is respectively equipped with interior ventilating opening, tied in support It is located on structure and outer weather shield is symmetrically interval between interior weather shield both sides and outer casing, the row of being formed between adjacent outer weather shield Air port and exhaust outlet and Internal baffle one-to-one corresponding, are respectively equipped with outer wind deflector in exhaust outlet;It is located at outside both sides in supporting construction Backplate inner side forms symmetrical dedusting area, water atomization plant is provided with dedusting area, for increasing to fine particle size dust, flue gas Degraded, trapping;Eaves gutter is symmetrically arranged on two with positioned at interior weather shield on the support structure, is protected outside both sides on the support structure Plate lower end is respectively equipped with dust collecting trough.
Used as further preferred, the interior weather shield both sides form symmetrical V-type emptying dust with eaves gutter and outer weather shield Area, for realizing the further collecting function to emptying dust, is conducive to drain water ash, can reduce crosswind force purging and keep off the rain The airborne dust that dust is caused on plate.
Used as further preferred, the outer wind deflector is with the inside weather shield side of louver structure and upper end for opening and closing function To being obliquely installed, the dust for that will discharge is oriented to interior weather shield sedimentation, reduces dust and flies away laterally, the outer wind deflector of shutter type With rainproof function.
Used as further preferred, the water atomization plant is heavy pressure fine spray dust arrester or supersonic atomizer, is used In increase to fine particle size dust, the degraded and trapping of flue gas.
Used as further preferred, the internal air baffle is fixed louver structure and level or inclined downward cloth laterally Put, for aiding in the first time dilatation guide functions to draft, to improve dust removal by ventilation effect while preventing rainwater from pouring in down a chimney.
As further preferred, it is located on main support and is respectively equipped with louvered in the dedusting area of each exhaust outlet both sides and leads Stream plate, for aiding in the second dilatation guide functions in longitudinal direction to draft, to improve dust removal by ventilation effect.
As further preferred, multiple mozzles are provided between the eaves gutter and dust collecting trough of supporting construction both sides, for inciting somebody to action Ponding in eaves gutter enters dust collecting trough.
As further preferred, wind-screening dust-inhibiting net is provided with along interior weather shield is longitudinally spaced on the support structure, it is vertical to reduce Wind purges the airborne dust that dust is caused on interior weather shield that descends slowly and lightly.
As further preferred, there is sparge pipe in the online symmetric support of wind-screening dust-suppressing, with periodically by the product on interior weather shield Dirt is flushed to eaves gutter and is discharged to dust collecting trough collection.
Used as further preferred, the dust collecting trough is trapezoidal and set along roofing ventilating opening longitudinal divisionses, outside dust collecting trough Side is provided with discharge outlet, to realize the discharge in a organized way of ponding;Slideway is arranged below positioned at every section of dust collecting trough on the support structure, with The push-and-pull deashing function of dust collecting trough is realized, easy access is changed.
The beneficial effects of the invention are as follows:
1st, due to forming interior ventilating opening between adjacent Internal baffle, exhaust outlet and air draft are formed between adjacent outer weather shield Mouth is corresponded with Internal baffle, and dilatation reduction of speed twice can be formed by the setting of the interior ventilating opening, dedusting area and exhaust outlet Gravitational dust collection passage;By the water atomization plant being located in dedusting area, the degraded to fine particle size dust, flue gas can be realized And trapping, therefore with atomization degraded flue dust function, dedusting total efficiency is up to more than 95%;By being arranged under the outer casing of both sides The dust collecting trough at end can realize the collection clearing function to dust of degrading.
2nd, the present invention is pollution sources center with process units according to industrial premises, and discharging flue dust has regional and paroxysm Property feature, carry out structure improvement to the ventilation flow of conventional roof ventilator and space, formed and discharge flue dust feature phase with production Adapt to, the emission reduction environmental protection natural ventilation of roof device with good degraded flue dust function.It is applicable not only to newly-built industrial premises Emission reduction Design of ventilation application, and suitable for the emission reduction environmental protection to the existing a large amount of roof ventilators of application, ventilating skylight and dormer Technological transformation.
Brief description of the drawings
Fig. 1 is the cross-sectional structure schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the vertical structure schematic diagram of Fig. 1.
Fig. 3 is the arrangement schematic diagram of Internal baffle of the present invention and outer weather shield.
Fig. 4 is the arrangement schematic diagram of wind-screening dust-inhibiting net of the present invention and sparge pipe.
Fig. 5 is the cross-sectional structure schematic diagram of the embodiment of the present invention 2.
In figure:Foundation beam 1, supporting construction 2, outer casing 3, water atomization plant 4, dedusting area 5 empties accumulation area 6, inside keeps off the rain Plate 7, eaves gutter 8, outer weather shield 9, outer wind deflector 10, Internal baffle 11, internal air baffle 12, mozzle 13, dust collecting trough 14, flashing plate 15, slideway 16, main support 17, vertical pole 18, exhaust outlet 19, interior ventilating opening 20, wind-screening dust-inhibiting net 21, sparge pipe 22, deflector 23.
Specific embodiment
Embodiment 1
As shown in Figure 1 to 4, a kind of emission reduction environment-protecting roof ventilator of the present invention, including it is fixed on roofing ventilation Supporting construction 2 at mouthful, the supporting construction 2 is to pass through many vertical poles by along the longitudinally uniform multiple main supports 17 of roofing ventilating opening 18 are formed by connecting, and the present embodiment by taking seven main supports 17 as an example, by two pile foundation beams 1 consolidated respectively by two heel posts of main support 17 It is scheduled on roof structure.Outer casing 3 is symmetrically fixed with the both sides of supporting construction 2, interior gear is fixed with the middle part upper end of supporting construction 2 Rain plate 7, interior weather shield 7 is ridge-shaped or arc, and the present embodiment is by taking ridge-shaped as an example.
Interval is fixed with Internal baffle between being longitudinally located at two heel posts of multiple main supports 17 along it on the support structure 2 11, interior ventilating opening 20 is formed between two adjacent Internal baffles 11 of the same side and is led in being respectively equipped with interior ventilating opening 20 Aerofoil 12, the two ends of internal air baffle 12 are held within the main support 17 at its two ends, and the internal air baffle 12 is multi-disc and is water Flat or inclined downward arrangement laterally fixed louver structure, the present embodiment as a example by horizontally disposed, for realizing to ventilation Dilatation guide functions of air-flow, to improve dust removal by ventilation effect while preventing rainwater from pouring in down a chimney.
Symmetrical interval between the both sides of interior weather shield 7 and the upper end of outer casing 3 is longitudinally located at along it on the support structure 2 to be fixed with Outer weather shield 9, outer weather shield 9 is in tilted layout and outside is higher than inner side, and exhaust outlet 19 and row are formed between adjacent outer weather shield 9 Air port 19 is corresponded with Internal baffle 11, and outer wind deflector 10 is respectively equipped with exhaust outlet 19.The outer wind deflector 10 be with The inside direction of weather shield 7 of louver structure and upper end for folding keying function is obliquely installed, and the dust for that will discharge is oriented to interior gear Rain plate 7 is settled, and is reduced dust and is flown away laterally, and the outer wind deflector 10 of shutter type has rainproof function;Meanwhile, with keying function Outer wind deflector 10 can need to control draft speed according to degraded flue dust, to reach optimal degraded flue dust effect.
The inner side of both sides outer casing 3 is located in supporting construction 2 and forms symmetrical dedusting area 5, be uniformly provided with dedusting area 5 Water atomization plant 4, the water atomization plant 4 is heavy pressure fine spray dust arrester or supersonic atomizer, for increasing to tiny The degraded and trapping of particle diameter dust, flue gas.On the support structure 2 trapezoidal eaves is symmetrically fixed with positioned at the both sides lower end of interior weather shield 7 Ditch 8, for collecting the current on interior weather shield 7 and outer weather shield 9.
Dust collecting trough 14 is respectively fixed with positioned at the lower end of both sides outer casing 3 on the support structure 2, the dust collecting trough 14 is trapezoidal And set along roofing ventilating opening longitudinal divisionses, discharge outlet is provided with the outside of dust collecting trough 14, to realize the discharge in a organized way of ponding; Slideway 16 is welded with separately below positioned at every section of dust collecting trough 14 in supporting construction 2, and the dust collecting trough 14 can be along slideway 16 laterally Extract out, to realize the push-and-pull deashing function of dust collecting trough 14, easy access is changed.It is located under dust collecting trough 14 in the both sides of supporting construction 2 Flashing plate 15 is respectively fixed with the slideway 16 in face, flashing plate 15 is that contour plate and lower end are ridden on roofing.
Multiple mozzles 13 are vertically and fixedly provided between the eaves gutter 8 and dust collecting trough 14 of the both sides of supporting construction 2, on mozzle 13 End and the conducting of the inside groove of eaves gutter 8, the lower end of mozzle 13 is located in dust collecting trough 14, for the ponding in eaves gutter 8 to be entered into dust collecting trough 14.
The both sides of interior weather shield 7 form symmetrical V-type emptying accumulation area 6 with eaves gutter 8 and outer weather shield 9, for realizing Further collecting function to emptying dust, is conducive to drain water ash, can reduce dust on crosswind force purging weather shield and make Into airborne dust.
Wind-screening dust-inhibiting net 21 is fixed with along interior weather shield 7 is longitudinally spaced on the support structure 2, wind-screening dust-inhibiting net 21 is solid respectively Each top of main support 17 is scheduled on, the airborne dust that dust is caused on interior weather shield 7 that descends slowly and lightly is purged to reduce longitudinal wind-force.Keeping out the wind 7 liang of side slope symmetric supports of weather shield have sparge pipe 22, the connection high-pressure water of sparge pipe 22, with regular in correspondence on dust-suppression net 21 Laying dust on interior weather shield 7 is flushed to eaves gutter 8 and is discharged to dust collecting trough 14 and is collected.
During ventilation as shown in fig. 1, the stream containing dust of factory building is logical into the emission reduction environment-protecting roof by roofing ventilating opening In wind device, realize that first time dilatation is slowed down into dedusting area 5 by the gap of internal air baffle 12 of ventilating opening in both sides 20, it is right to be formed The gravitational settling dedusting of big particle diameter dust is simultaneously fallen into dust collecting trough 14;By water atomization plant 4 in air-flow in dedusting area 5 Dust carries out atomization and settles and fall into dust collecting trough 14;Air-flow after purification is discharged by deflector by exhaust outlet 19.By row Outer wind deflector 10 in air port 19 can be oriented to interior weather shield 7 to the dust in air-flow and realize secondary settlement, further reduce dust To being flown away in air.By practice test, dedusting total efficiency can reach more than 95%.
Embodiment 2
As shown in figure 5, being separately installed with louvered in the dedusting area 5 of each both sides of exhaust outlet 19 on main support 17 Deflector 23, for aiding in realizing the secondary dilatation guide functions in longitudinal direction to draft, to improve dust removal by ventilation effect.Other With embodiment 1, the present embodiment is repeated no more structure.
Although embodiment of the present invention is disclosed as above, it is not restricted to listed in specification and implementation method With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited In specific details and shown here as the legend with description.

Claims (10)

1. a kind of emission reduction environment-protecting roof ventilator, including be fixed on the supporting construction at roofing ventilating opening, the supporting construction be by Multiple main supports are formed by connecting by many vertical poles, and outer casing is symmetrically arranged on two with supporting construction, in the middle part of the supporting construction on End is provided with interior weather shield, it is characterized in that:On the support structure interior gear is interval between two heel posts of multiple main supports Plate, forms interior ventilating opening and internal air baffle is respectively equipped with interior ventilating opening, on the support structure position between adjacent Internal baffle Outer weather shield is symmetrically interval between interior weather shield both sides and outer casing, between adjacent outer weather shield formed exhaust outlet and Exhaust outlet is corresponded with Internal baffle, and outer wind deflector is respectively equipped with exhaust outlet;It is located in the outer casing of both sides in supporting construction Side forms symmetrical dedusting area, and water atomization plant is provided with dedusting area, for increasing the drop to fine particle size dust, flue gas Solution, trapping;Eaves gutter is symmetrically arranged on two with positioned at interior weather shield on the support structure, on the support structure under the outer casing of both sides End is respectively equipped with dust collecting trough.
2. emission reduction environment-protecting roof ventilator according to claim 1, it is characterized in that:The interior weather shield both sides and eaves gutter and Outer weather shield forms symmetrical V-type emptying accumulation area, for realizing the further collecting function to emptying dust, is conducive to excretion Water ash, can reduce the airborne dust that dust is caused on crosswind force purging weather shield.
3. emission reduction environment-protecting roof ventilator according to claim 1 and 2, it is characterized in that:The outer wind deflector is with opening The inside weather shield direction of louver structure and upper end for closing function is obliquely installed, and is sunk for the dust of discharge to be oriented into interior weather shield Drop, reduces dust and flies away laterally.
4. emission reduction environment-protecting roof ventilator according to claim 1, it is characterized in that:The water atomization plant is high pressure fine water Mist dust arrester or supersonic atomizer, for increasing degraded and trapping to fine particle size dust, flue gas.
5. emission reduction environment-protecting roof ventilator according to claim 3, it is characterized in that:The internal air baffle is fixed blinds Structure and level or laterally inclined downward arrangement, for aiding in the first time dilatation guide functions to draft, to improve Dust removal by ventilation effect prevents rainwater from pouring in down a chimney simultaneously.
6. emission reduction environment-protecting roof ventilator according to claim 5, it is characterized in that:Each exhaust outlet is located on main support Louvered deflector is respectively equipped with the dedusting area of both sides, for aiding in second of the longitudinal direction dilatation water conservancy diversion to draft to make With to improve dust removal by ventilation effect.
7. the emission reduction environment-protecting roof ventilator according to claim 1 or 5 or 6, it is characterized in that:In the eaves of supporting construction both sides Multiple mozzles are provided between ditch and dust collecting trough, for the ponding in eaves gutter to be entered into dust collecting trough.
8. emission reduction environment-protecting roof ventilator according to claim 7, it is characterized in that:It is vertical along interior weather shield on the support structure To wind-screening dust-inhibiting net is interval with, the airborne dust that dust is caused on interior weather shield that descends slowly and lightly is purged to reduce longitudinal wind-force.
9. emission reduction environment-protecting roof ventilator according to claim 8, it is characterized in that:Have in the online symmetric support of wind-screening dust-suppressing Sparge pipe, is collected with being periodically flushed to the laying dust on interior weather shield eaves gutter and being discharged to dust collecting trough.
10. emission reduction environment-protecting roof ventilator according to claim 7, it is characterized in that:The dust collecting trough is trapezoidal and along room Face ventilating opening longitudinal divisionses are set, and discharge outlet are provided with the outside of dust collecting trough, to realize the discharge in a organized way of ponding;In supporting construction Upper that slideway is arranged below positioned at every section of dust collecting trough, to realize the push-and-pull deashing function of dust collecting trough, easy access is changed.
CN201710055706.1A 2017-01-25 2017-01-25 Emission reduction environment-friendly roof ventilator Active CN106765826B (en)

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CN106765826B CN106765826B (en) 2020-06-30

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108772198A (en) * 2018-06-07 2018-11-09 许玉蕊 Exhaust building with air-cleaning function
CN113062519A (en) * 2021-04-01 2021-07-02 陈杨 Energy-saving and environment-friendly building roof structure and using method thereof
CN113908651A (en) * 2021-11-22 2022-01-11 江苏科技大学 Steel structure workshop welding smoke dust collecting and purifying system and method
CN115056267A (en) * 2022-07-12 2022-09-16 东莞市铁石文档科技有限公司 Dust loss prevention glove type operation box for disassembling selenium drum

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002174005A (en) * 2000-12-08 2002-06-21 Gantan Beauty Ind Co Ltd External facing structure of building
CN102211088A (en) * 2011-06-03 2011-10-12 单连勤 Roof natural-ventilation deduster
CN202734134U (en) * 2012-08-06 2013-02-13 锦州鹏翔电力轻钢设备有限公司 Roof dust removal ventilator
CN206420104U (en) * 2017-01-25 2017-08-18 石亿兵 Emission reduction environment-protecting roof ventilator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002174005A (en) * 2000-12-08 2002-06-21 Gantan Beauty Ind Co Ltd External facing structure of building
CN102211088A (en) * 2011-06-03 2011-10-12 单连勤 Roof natural-ventilation deduster
CN202734134U (en) * 2012-08-06 2013-02-13 锦州鹏翔电力轻钢设备有限公司 Roof dust removal ventilator
CN206420104U (en) * 2017-01-25 2017-08-18 石亿兵 Emission reduction environment-protecting roof ventilator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108772198A (en) * 2018-06-07 2018-11-09 许玉蕊 Exhaust building with air-cleaning function
CN108772198B (en) * 2018-06-07 2020-09-04 刘金波 Exhaust building with air purification function
CN113062519A (en) * 2021-04-01 2021-07-02 陈杨 Energy-saving and environment-friendly building roof structure and using method thereof
CN113062519B (en) * 2021-04-01 2022-07-01 广东中颢工程设计有限公司 Energy-saving and environment-friendly building roof structure and using method thereof
CN113908651A (en) * 2021-11-22 2022-01-11 江苏科技大学 Steel structure workshop welding smoke dust collecting and purifying system and method
CN115056267A (en) * 2022-07-12 2022-09-16 东莞市铁石文档科技有限公司 Dust loss prevention glove type operation box for disassembling selenium drum

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