CN105135584A - Ventilating cowl - Google Patents
Ventilating cowl Download PDFInfo
- Publication number
- CN105135584A CN105135584A CN201510487859.4A CN201510487859A CN105135584A CN 105135584 A CN105135584 A CN 105135584A CN 201510487859 A CN201510487859 A CN 201510487859A CN 105135584 A CN105135584 A CN 105135584A
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- CN
- China
- Prior art keywords
- connecting portion
- end pipe
- tube
- umbrella
- wind
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/52—Weather protecting means, e.g. against wind, rain or snow
Abstract
The invention discloses a ventilating cowl. The ventilating cowl comprises a diversion-diffusion air tube, an inverted-cone diversion umbrella, a rain-shielding top cover, a wind-shielding ring and a wind-retaining ring, wherein the diversion-diffusion air tube is provided with a first end tube, a second end tube and a middle tube, the first end tube is opposite to an exhaust tube of an exhaust system, the middle tube is arranged between the first end tube and the second end tube, and the tube diameter of the second end tube is greater than that of the first end tube; the inverted-cone diversion umbrella is partially inserted into the middle tube along the second end tube, and partially projects out of the second end tube; the rain-shielding top cover is arranged on an end part away from the second end tube, of the inverted-cone diversion umbrella in a covering manner, and provided with a cover edge part which radially projects onto the inverted-cone diversion umbrella; the wind-shielding ring is arranged around the rain-shielding top cover, the inverted-cone diversion umbrella and a part of the diversion-diffusion air tube in a surrounding manner; the wind-retaining ring is arranged on the middle tube in a sleeving manner; an airflow channel for passage of an airflow is formed among the inner wall of the middle tube, the inner wall of the second end tube and the inverted-cone diversion umbrella, and the diameter of the cover edge part is greater than the tube diameter of the second end tube. The ventilating cowl disclosed by the invention is capable of giving consideration to many needs of wind shielding, exhaust airflow upward-discharge induction and rain prevention.
Description
Technical field
The present invention has about outdoor air exhausting device, specifically, relates to the ventilator being arranged on exhaust system outlet.
Background technology
Along with developing rapidly of science and technology, emerging in an endless stream of scientific research station's construction, the research laboratory of multiple function and experiment station are also in continuous construction.And in experimental work, inevitably adopt some to be unfavorable for the material of human health.Along with the mankind's understanding in depth some hazardous substances, simultaneously to the raising of individual health and consciousness of self-protection, in construction project, just a stricter requirement is proposed to its protection.First on experiment (or pilot production) facility, certain safeguard procedures are taked, in most of the cases simultaneously, the integrated design that collect its harmful substance, process, discharge.
The collection of nuisance, the work of process, new technologies a large amount of at present, new equipment arise at the historic moment.And the equipment on exhaust outlet has still continued to use the equipment of 60 ~ seventies at present---the ventilator of three class standards designs, i.e. cylindrical ventilator, cowl, tapered blast cap, this three kind equipment all has and makes description in detail in national standard atlas 96K150.In actual design uses, the handling characteristics of this three classes blast cap is: cylindrical ventilator is used for natural ventilation system; Cowl has certain guide functions, but wind sheltering is poor, there is wind folder rain and to waft the risk of Gas inlet tube; Conical cowl wind sheltering is strong, induced air high altitude discharge is effective, but the non-constant of drainage, especially continuously large in the rain, the drain groove of 10mm is completely can not smooth discharge heavy rain, often occur pouring into exhaust system in heavy rain, flow between experiment (test) from exhaust duct, cause the accident that heavy rain Inner lets out.
The configuration reasonability of the outside exhaust outlet of ventilating system, effectively can reduce the impact of outer gas stream on experiment (test) chamber interior air draft pressure, reduce the fluctuation of experiment (test) room pressure, and effectively rainproof, windproof function must be considered, avoid outdoor rainwater to pour into experiment (test) environment by exhaust outlet, cause great work dangerous.At present in Practical Project, row, rainproof multi-functional on wind sheltering, induction air draft air-flow can not be taken into account often in exhaust outlet equipment choosing.
Summary of the invention
A technical problem to be solved by this invention is, can not take into account the defect of row, rainproof multiple demand on wind sheltering, induction air draft air-flow, provide the ventilator of the wind sheltering of a kind of energy, external air draft that is rainproof, upwards water conservancy diversion for existing ventilator.
To achieve these goals, ventilator of the present invention, for being arranged on exhaust system outlet, being connected with the exhaust duct of exhaust system, comprising:
Water conservancy diversion diffusion airduct, there is a first end pipe, one second end pipe and an intervalve, described first end pipe is relative with the exhaust duct of described exhaust system, and described intervalve is arranged between described first end pipe and described second end pipe, and the caliber of described second end pipe is greater than the caliber of described first end pipe;
Entirety is a conical back taper flow-guiding umbrella, and part is inserted in described intervalve along described second end pipe, part axially protrudes from outside described second end pipe;
Keep off the rain overhead guard, and lid is located on the end away from described second end pipe of described back taper flow-guiding umbrella, has radial direction and protrudes from the cover of described back taper flow-guiding umbrella along portion;
Wind sheltering circle, around keep off the rain described in being arranged on overhead guard, described back taper flow-guiding umbrella and part described water conservancy diversion diffusion airduct; And
Wind loop, is set on described intervalve;
Wherein, the inwall of described intervalve and have the gas channel that air feed flows through between the inwall of described second end pipe and described back taper flow-guiding umbrella, described cover is greater than the caliber of described second end pipe along the diameter in portion.
Above-mentioned ventilator, wherein, the outer rim of described first end pipe is welded with the convenient adpting flange be connected with the exhaust duct of described exhaust system.
Above-mentioned ventilator, wherein, described wind sheltering circle spreads airduct by multiple first supporter with multiple second supporter and described water conservancy diversion and is connected.
Above-mentioned ventilator, wherein, described first supporter comprises the first connecting portion, the second connecting portion and pars intermedia, described first connecting portion is welded on described adpting flange, described second connecting portion is connected with the bottom of described wind sheltering circle, and described middle part is between described first connecting portion and described second connecting portion.
Above-mentioned ventilator, wherein, described first supporter entirety becomes Z-shaped.
Above-mentioned ventilator, wherein, the outer rim of described second end pipe is connected with pivot flange, described second supporter comprises lateral connection portion, longitudinal connecting portion and oblique connecting portion, the one end in described lateral connection portion is welded on described pivot flange, described longitudinal connecting portion bends from the one end away from described pivot flange in described lateral connection portion and is connected with the middle part of described wind sheltering circle, and described oblique connecting portion bends from one end away from described lateral connection portion of described longitudinal connecting portion and is connected with the described overhead guard that keeps off the rain.
Above-mentioned ventilator, wherein, described back taper flow-guiding umbrella is connected with described second end pipe with multiple 4th supporter by multiple 3rd supporter.
Above-mentioned ventilator, wherein, described 3rd supporter comprises umbrella wall connecting portion, support portion and tube wall connecting portion, described umbrella wall connecting portion is connected with described back taper flow-guiding umbrella, described tube wall connecting portion is connected on the inner edge of described second end pipe, and described support portion is arranged between described umbrella wall connecting portion and described tube wall connecting portion.
Above-mentioned ventilator, wherein, described 4th supporter comprises flow-guiding umbrella connecting portion, intermediate supports portion and Flange joint portion, described flow-guiding umbrella connecting portion is connected with described back taper flow-guiding umbrella, described Flange joint portion is connected on described pivot flange, and described intermediate supports portion is arranged between described flow-guiding umbrella connecting portion and described Flange joint portion.
Above-mentioned ventilator, wherein, described wind sheltering circle is provided with stiffening ring, and described upper stiffening ring is around being arranged in the outer rim on top of described wind sheltering circle.
Above-mentioned ventilator, wherein, described wind sheltering circle is provided with lower stiffening ring, and described lower stiffening ring is around being arranged in the outer rim of bottom of described wind sheltering circle.
Above-mentioned ventilator, wherein, described wind sheltering circle is also provided with multiple reinforcing rib of stiffening ring up and down axially extending to described lower stiffening ring from described upper stiffening ring, multiple upper and lower stiffening ring reinforcing rib is uniformly distributed along the circumference of described stiffening ring.
Above-mentioned ventilator, wherein, the maximum gauge of described wind loop is greater than the caliber of described second end pipe, and described cover is greater than the maximum gauge of described wind loop along the diameter in portion.
Above-mentioned ventilator, wherein, the outer rim of described intervalve is provided with multiple ribs axially extending to described second end pipe from described first end pipe, multiple ribs is uniformly distributed along the circumference of described intervalve.
Beneficial functional of the present invention is: water conservancy diversion diffusion airduct and back taper flow-guiding umbrella can guide air draft air-flow upwards smooth discharge; Overhead guard energy rain cover of keeping off the rain and other foreign material drop to exhaust duct; Wind sheltering circle contributes to gas in exhaust duct and discharges smoothly, outdoor air also can be avoided the interference of system air draft simultaneously; Wind loop can stop outdoor airflow interference air draft, also can stop that the outer air draft of exhaust duct is overflowed downwards simultaneously; Thus row, rainproof multiple demand on wind sheltering, induction air draft air-flow can be taken into account.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the structure diagram of ventilator of the present invention;
Fig. 2 is the outline drawing of ventilator of the present invention;
Fig. 3 is the cut-away view of ventilator of the present invention;
Fig. 4 is the A portion enlarged drawing in Fig. 3.
Wherein, Reference numeral
10 water conservancy diversion diffusion airducts
11 first end pipes
12 intervalves
13 second end pipes
20 back taper flow-guiding umbrellas
30 keep off the rain overhead guard
40 wind sheltering circles
50 wind loops
60 adpting flanges
70 pivot flanges
80 first supporters
81 first connecting portions
82 pars intermedias
83 second connecting portions
90 second supporters
91 lateral connection portions
92 longitudinal connecting portions
93 oblique connecting portions
110 the 3rd supporters
111 umbrella wall connecting portions
112 support portions
113 tube wall connecting portions
120 the 4th supporters
121 flow-guiding umbrella connecting portions
122 intermediate supports portions
123 Flange joint portions
Stiffening ring on 130
140 times stiffening rings
About 150 stiffening ring reinforcing ribs
160 ribs
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technical solution of the present invention is described in detail, further to understand object of the present invention, scheme and effect, but not as the restriction of claims protection domain of the present invention.
Ventilator of the present invention is used for being arranged on exhaust system outlet, is connected with the exhaust duct of exhaust system.As shown in Figure 1 to Figure 3, ventilator comprises water conservancy diversion diffusion airduct 10, back taper flow-guiding umbrella 20, the overhead guard 30 that keeps off the rain, wind sheltering circle 40 and wind loop 50.Water conservancy diversion diffusion airduct 10 has first end pipe 11,1 second end pipe 13 and an intervalve 12, first end pipe 11 is relative with the exhaust duct of exhaust system, intervalve 12 is arranged between first end pipe 11 and the second end pipe 13, and the caliber D of first end pipe 11 is equal with the caliber of the exhaust duct of exhaust system.The caliber D1 of the second end pipe 13 is greater than the caliber D of first end pipe 11.Back taper flow-guiding umbrella 20 entirety is a taper shape, and part is inserted in intervalve 12 along the second end pipe 13, part axially protrudes from outside the second end pipe 13.The overhead guard 30 that keeps off the rain lid is located on the end away from the second end pipe 13 of back taper flow-guiding umbrella 20, has radial direction and protrudes from the cover of back taper flow-guiding umbrella along portion.Wind sheltering circle 40 is around being arranged on the overhead guard 30 that keeps off the rain, back taper flow-guiding umbrella 20 and part water conservancy diversion diffusion airduct 10 around.Wind loop 50 is set on intervalve 12.Wherein, the inwall of intervalve 12 and have the gas channel that air feed flows through between the inwall of the second end pipe 13 and back taper flow-guiding umbrella 20, the diameter covered along portion is greater than the caliber of the second end pipe 13.
In conjunction with consulting Fig. 3, the outer rim of first end pipe 11 is welded with the convenient adpting flange 60 be connected with the exhaust duct of exhaust system.Wind sheltering circle 40 spreads airduct 10 with multiple second supporter 90 with water conservancy diversion by multiple first supporter 80 and is connected.First supporter 80 comprises the first connecting portion 81, second connecting portion 83 and pars intermedia 82, first connecting portion 81 is welded on adpting flange 60, second connecting portion 83 is connected with the bottom of wind sheltering circle 40, pars intermedia 82 is between the first connecting portion 81 and the second connecting portion 83, and the first supporter 80 entirety becomes Z-shaped.In conjunction with consulting Fig. 4, the outer rim of the second end pipe 13 is connected with pivot flange 70, and pivot flange 70 is made up of angle steel, to arrange back taper flow-guiding umbrella 20 and wind sheltering circle 40.Second supporter 90 comprises lateral connection portion 91, longitudinal connecting portion 92 and oblique connecting portion 93, the one end in lateral connection portion 91 is welded on pivot flange 70, longitudinal connecting portion 92 bends from the one end away from pivot flange 70 in lateral connection portion 91 and is connected with the middle part of wind sheltering circle 40, and oblique connecting portion 93 bends from one end away from lateral connection portion 91 of longitudinal connecting portion 92 and is connected with the overhead guard 30 that keeps off the rain.Back taper flow-guiding umbrella 20 is connected with the second end pipe 13 with multiple 4th supporter 120 by multiple 3rd supporter 110.3rd supporter 110 comprises umbrella wall connecting portion 111, support portion 112 and tube wall connecting portion 113; umbrella wall connecting portion 111 is connected with back taper flow-guiding umbrella 20; tube wall connecting portion 113 is connected on the inner edge of the second end pipe 13, and support portion 112 is arranged between umbrella wall connecting portion 111 and tube wall connecting portion 113.4th supporter 120 comprises flow-guiding umbrella connecting portion 121, intermediate supports portion 122 and Flange joint portion 123, flow-guiding umbrella connecting portion 121 is connected with back taper flow-guiding umbrella 20, Flange joint portion 123 is connected on pivot flange 70, and intermediate supports portion 122 is arranged between flow-guiding umbrella connecting portion 121 and Flange joint portion 123.
In conjunction with consulting Fig. 2, in order to ensure rigidity and the intensity of wind sheltering circle 40, wind sheltering circle 40 is provided with stiffening ring 130 and lower stiffening ring 140, upper stiffening ring 130 is around being arranged in the outer rim on top of wind sheltering circle 40, and lower stiffening ring 140 is around being arranged in the outer rim of bottom of wind sheltering circle 40.And wind sheltering circle 40 being also provided with multiple reinforcing rib of stiffening ring up and down 150 axially extending to lower stiffening ring 140 from upper stiffening ring 130, multiple upper and lower stiffening ring reinforcing rib 150 is uniformly distributed along the circumference of described stiffening ring.In addition, in order to strengthen the intensity of water conservancy diversion diffusion airduct 10, water conservancy diversion is spread the support force vertical transmission of airduct 10 port of export to lower end of duct simultaneously, in order to the fixed support of ventilator, the outer rim of intervalve 12 is provided with multiple ribs 160 axially extending to the second end pipe 13 from first end pipe 11, multiple ribs 160 is uniformly distributed along the circumference of intervalve 12.
Consult Fig. 1 again, the maximum dimension D 3 of wind loop 50 is greater than the caliber D1 of the second end pipe 13, and cover is greater than the maximum dimension D 3 of wind loop 50 along the diameter D4 in portion.
As can be seen from the above, the present invention is the ventilator of a kind of wind sheltering, external air draft that is rainproof, upwards water conservancy diversion, and ventilator of the present invention is applicable to continous-stable exhaust system, the external air exhausting device especially in outdoor wind, rain frequently adverse circumstances." water conservancy diversion diffusion airduct " in ventilator of the present invention, " back taper flow-guiding umbrella " can guide air draft air-flow upwards smooth discharge; " keep off the rain overhead guard " energy rain cover and other foreign material drop to exhaust duct; " wind sheltering circle " can wind sheltering, water conservancy diversion, when outdoor airflow is by wind sheltering circle, air-flow, around the flowing of this wind sheltering circle, makes the wind sheltering circle back side produce negative pressure, thus contributes to gas in exhaust duct and discharge smoothly, also avoid outdoor air to the interference of system air draft simultaneously; " wind loop " can stop that outdoor airflow is from bottom airduct interference air draft, can stop that the outer air draft of exhaust duct is overflowed downwards simultaneously.
Ventilator of the present invention in use, upwards discharge, and under conventional design, in aditus laryngis pipeline, design wind speed controls at 4 ~ 9m/s by the exhaust duct (exhaust duct is not shown) that air draft air-flow is D by diameter.The back taper flow-guiding umbrella 20 inserted in water conservancy diversion diffusion airduct 10 spreads airduct 10 with water conservancy diversion and forms induced draft, air-flow is discharged along back taper flow-guiding umbrella wall and water conservancy diversion diffusion wind tube outlet injection, walks around on the overhead guard that keeps out the wind by certain wind speed and arrange (air current flow direction as shown by the arrows in Figure 1).
In Fig. 1, the dimensional parameters of each parameter value is in table 1, and wherein, in table, parameter value is all in mm.
Table 1
| D | D1 | D2 | D3 | D4 | D5 | D6 | H1 | H2 | H3 | H4 | H5 |
| 200 | 252 | 231 | 300 | 340 | 245 | 130 | 250 | 60 | 90 | 30 | 100 |
| 280 | 353 | 325 | 420 | 476 | 376 | 192 | 340 | 84 | 116 | 42 | 140 |
| 400 | 504 | 465 | 600 | 680 | 580 | 274 | 510 | 120 | 190 | 60 | 200 |
| 500 | 630 | 582 | 750 | 850 | 750 | 416 | 600 | 150 | 200 | 75 | 250 |
| 630 | 794 | 734 | 945 | 1071 | 960 | 414 | 830 | 189 | 326 | 95 | 315 |
| 700 | 882 | 816 | 1050 | 1190 | 1090 | 484 | 910 | 210 | 350 | 105 | 350 |
Separately, the Taper Pipe insertion depth of back taper flow-guiding umbrella is determined by D5 size Control, drainage length H3 value obtains through analog computation, the maximum outside diameter D4 (that is, covering the diameter along portion) of overhead guard, the relative dimensions such as diameter 2D, wind loop of wind sheltering circle of keeping off the rain obtains in conjunction with the relevant parameter in national standard atlas 96K150.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (14)
1. a ventilator, for being arranged on exhaust system outlet, being connected with the exhaust duct of exhaust system, it is characterized in that, comprising:
Water conservancy diversion diffusion airduct, there is a first end pipe, one second end pipe and an intervalve, described first end pipe is relative with the exhaust duct of described exhaust system, and described intervalve is arranged between described first end pipe and described second end pipe, and the caliber of described second end pipe is greater than the caliber of described first end pipe;
Entirety is a conical back taper flow-guiding umbrella, and part is inserted in described intervalve along described second end pipe, part axially protrudes from outside described second end pipe;
Keep off the rain overhead guard, and lid is located on the end away from described second end pipe of described back taper flow-guiding umbrella, has radial direction and protrudes from the cover of described back taper flow-guiding umbrella along portion;
Wind sheltering circle, around keep off the rain described in being arranged on overhead guard, described back taper flow-guiding umbrella and part described water conservancy diversion diffusion airduct; And
Wind loop, is set on described intervalve;
Wherein, the inwall of described intervalve and have the gas channel that air feed flows through between the inwall of described second end pipe and described back taper flow-guiding umbrella, described cover is greater than the caliber of described second end pipe along the diameter in portion.
2. ventilator according to claim 1, is characterized in that, the outer rim of described first end pipe is welded with the convenient adpting flange be connected with the exhaust duct of described exhaust system.
3. ventilator according to claim 2, is characterized in that, described wind sheltering circle spreads airduct by multiple first supporter with multiple second supporter and described water conservancy diversion and is connected.
4. ventilator according to claim 3, it is characterized in that, described first supporter comprises the first connecting portion, the second connecting portion and pars intermedia, described first connecting portion is welded on described adpting flange, described second connecting portion is connected with the bottom of described wind sheltering circle, and described middle part is between described first connecting portion and described second connecting portion.
5. ventilator according to claim 4, is characterized in that, described first supporter entirety becomes Z-shaped.
6. ventilator according to claim 3, it is characterized in that, the outer rim of described second end pipe is connected with pivot flange, described second supporter comprises lateral connection portion, longitudinal connecting portion and oblique connecting portion, the one end in described lateral connection portion is welded on described pivot flange, described longitudinal connecting portion bends from the one end away from described pivot flange in described lateral connection portion and is connected with the middle part of described wind sheltering circle, and described oblique connecting portion bends from one end away from described lateral connection portion of described longitudinal connecting portion and is connected with the described overhead guard that keeps off the rain.
7. ventilator according to claim 6, is characterized in that, described back taper flow-guiding umbrella is connected with described second end pipe with multiple 4th supporter by multiple 3rd supporter.
8. ventilator according to claim 7, it is characterized in that, described 3rd supporter comprises umbrella wall connecting portion, support portion and tube wall connecting portion, described umbrella wall connecting portion is connected with described back taper flow-guiding umbrella, described tube wall connecting portion is connected on the inner edge of described second end pipe, and described support portion is arranged between described umbrella wall connecting portion and described tube wall connecting portion.
9. ventilator according to claim 7, it is characterized in that, described 4th supporter comprises flow-guiding umbrella connecting portion, intermediate supports portion and Flange joint portion, described flow-guiding umbrella connecting portion is connected with described back taper flow-guiding umbrella, described Flange joint portion is connected on described pivot flange, and described intermediate supports portion is arranged between described flow-guiding umbrella connecting portion and described Flange joint portion.
10. ventilator according to claim 1, is characterized in that, described wind sheltering circle is provided with stiffening ring, and described upper stiffening ring is around being arranged in the outer rim on top of described wind sheltering circle.
11. ventilators according to claim 10, is characterized in that, described wind sheltering circle is provided with lower stiffening ring, and described lower stiffening ring is around being arranged in the outer rim of bottom of described wind sheltering circle.
12. ventilators according to claim 11, it is characterized in that, described wind sheltering circle is also provided with multiple reinforcing rib of stiffening ring up and down axially extending to described lower stiffening ring from described upper stiffening ring, multiple upper and lower stiffening ring reinforcing rib is uniformly distributed along the circumference of described stiffening ring.
13., according to the ventilator in claim 1-12 described in any one, is characterized in that, the maximum gauge of described wind loop is greater than the caliber of described second end pipe, and described cover is greater than the maximum gauge of described wind loop along the diameter in portion.
14. according to the ventilator in claim 1-12 described in any one, it is characterized in that, the outer rim of described intervalve is provided with multiple ribs axially extending to described second end pipe from described first end pipe, multiple ribs is uniformly distributed along the circumference of described intervalve.
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|---|---|---|---|
| CN201510487859.4A CN105135584B (en) | 2015-08-10 | 2015-08-10 | A kind of ventilator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510487859.4A CN105135584B (en) | 2015-08-10 | 2015-08-10 | A kind of ventilator |
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| Publication Number | Publication Date |
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| CN105135584A true CN105135584A (en) | 2015-12-09 |
| CN105135584B CN105135584B (en) | 2017-11-14 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545440A (en) * | 2016-02-01 | 2016-05-04 | 中航鼎衡造船有限公司 | Fireproof ventilation cap for liquefied gas ship |
| CN106439298A (en) * | 2016-11-21 | 2017-02-22 | 北京航天发射技术研究所 | Air duct sealed docking device |
| CN107560131A (en) * | 2017-08-09 | 2018-01-09 | 世源科技工程有限公司 | A kind of blast cap and ventilating system |
| CN109260887A (en) * | 2018-11-26 | 2019-01-25 | 南安市泉建机械科技有限公司 | A kind of power plant desulfurization device of the acceleration outlet suitable for rainy day |
| CN109914747A (en) * | 2019-03-30 | 2019-06-21 | 单简 | House exhaust passage reverse-filling Wind discharging hat |
| CN110686265A (en) * | 2018-07-06 | 2020-01-14 | 江苏中远环保科技有限公司 | Hazardous gas purifies chimney |
| CN112212320A (en) * | 2020-10-27 | 2021-01-12 | 洛阳万基发电有限公司 | Automatic coal combustion device for thermal power plant |
| WO2022179084A1 (en) * | 2021-02-25 | 2022-09-01 | 王政玉 | Exhaust device |
| CN115771995A (en) * | 2022-12-30 | 2023-03-10 | 重庆鑫景特种玻璃有限公司 | Float glass tin bath purging device |
| CN109914747B (en) * | 2019-03-30 | 2024-04-26 | 单简 | Anti-backflow exhaust cap for residential exhaust passage |
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| RU198629U1 (en) * | 2020-01-30 | 2020-07-21 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Пензенский государственный университет архитектуры и строительства" | Deflector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105545440A (en) * | 2016-02-01 | 2016-05-04 | 中航鼎衡造船有限公司 | Fireproof ventilation cap for liquefied gas ship |
| CN106439298B (en) * | 2016-11-21 | 2019-08-30 | 北京航天发射技术研究所 | Air duct seals docking facilities |
| CN106439298A (en) * | 2016-11-21 | 2017-02-22 | 北京航天发射技术研究所 | Air duct sealed docking device |
| CN107560131A (en) * | 2017-08-09 | 2018-01-09 | 世源科技工程有限公司 | A kind of blast cap and ventilating system |
| CN107560131B (en) * | 2017-08-09 | 2020-04-17 | 世源科技工程有限公司 | Hood and ventilation system |
| CN110686265A (en) * | 2018-07-06 | 2020-01-14 | 江苏中远环保科技有限公司 | Hazardous gas purifies chimney |
| CN109260887A (en) * | 2018-11-26 | 2019-01-25 | 南安市泉建机械科技有限公司 | A kind of power plant desulfurization device of the acceleration outlet suitable for rainy day |
| CN109914747A (en) * | 2019-03-30 | 2019-06-21 | 单简 | House exhaust passage reverse-filling Wind discharging hat |
| CN109914747B (en) * | 2019-03-30 | 2024-04-26 | 单简 | Anti-backflow exhaust cap for residential exhaust passage |
| CN112212320A (en) * | 2020-10-27 | 2021-01-12 | 洛阳万基发电有限公司 | Automatic coal combustion device for thermal power plant |
| WO2022179084A1 (en) * | 2021-02-25 | 2022-09-01 | 王政玉 | Exhaust device |
| CN115771995A (en) * | 2022-12-30 | 2023-03-10 | 重庆鑫景特种玻璃有限公司 | Float glass tin bath purging device |
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|---|---|
| CN105135584B (en) | 2017-11-14 |
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