CN104454667A - Draught hood - Google Patents
Draught hood Download PDFInfo
- Publication number
- CN104454667A CN104454667A CN201410618046.XA CN201410618046A CN104454667A CN 104454667 A CN104454667 A CN 104454667A CN 201410618046 A CN201410618046 A CN 201410618046A CN 104454667 A CN104454667 A CN 104454667A
- Authority
- CN
- China
- Prior art keywords
- air
- draught hood
- cover body
- sucking pipe
- permeable plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a draught hood. According to the technical scheme, the draught hood comprises a hood body, wherein an air suction cavity is formed in the hood body, the lower end of the hood body is open, the air suction cavity is communicated with air exhaust pipes, an air permeable sponge is arranged on the opening, the side wall of the air permeable sponge is attached to the inner wall of the hood body, an air permeable plate is fixedly connected with the opening and located above the air permeable sponge, the air permeable sponge is fixedly connected with the air permeable plate, a plurality of air holes are evenly distributed in the air permeable plate, at least one air suction pipe is arranged in the air suction cavity, a plurality of air suction holes are formed in the air suction pipes, one end of each air suction pipe is communicated with the corresponding air exhaust pipe, the other end of each air suction pipe is closed, and the air exhaust pipes are located on the side faces of the hood body. Water drops in the draught hood will not drip.
Description
Technical field
The present invention relates to a kind of exhaust equipment, more particularly, it relates to the draught hood that a kind of globule can not drip.
Background technique
Draught hood is communicated with induced draft fan, and the air in draught hood is taken in induced draft fan work away, and the air then in draught hood lower zone can pour in draught hood, thus is taken away by induced draft fan.Draught hood can expansion to a certain degree by the area in exhausting region, thus better to take away in this region containing impurity, peculiar smell or poisonous gas.
At present, draught hood on market comprises cover body, as shown in Figure 3, the cross section of cover body is isosceles trapezoid, and around cover body, thin-walled surrounds air-breathing cavity, cover body open lower side, induced draft fan is communicated with by exhaust column with on the upside of air-breathing cavity, induced draft fan work, and gas enters from opening, gas enters exhaust column through the guiding of faceshield side wall, thus by induced draft fan suction exhaust gas treating tower.Such draught hood is at gas through sidewall, and the hot water and steam in gas runs into sidewall can be condensed into droplet, and droplet constantly gathers and can drip from draught hood, can affect the work of bottom device.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide the draught hood that a kind of globule can not drip.
For achieving the above object, the present invention adopts following technological scheme, comprise cover body, air-breathing cavity is provided with in described cover body, described cover body lower ending opening, described air-breathing cavity is communicated with exhaust column, described opening is provided with ventilative sponge, described ventilative sponge sidewall and cover body inwall are fitted, the affixed air permeable plate of described opening, described air permeable plate is positioned at the top of ventilative sponge, described ventilative sponge and air permeable plate affixed, described air permeable plate is provided with some equally distributed air holes, at least one sucking pipe is provided with in described air-breathing cavity, described sucking pipe is provided with some suction ports, described sucking pipe one end is communicated with exhaust column, the other end is closed, described exhaust column is positioned at cover body side.
Preferably, be provided with collecting pipe between sucking pipe and exhaust column, described sucking pipe is three, and the sucking pipe one end described in three is communicated with collecting pipe respectively, and described exhaust column is communicated with in the middle part of collecting pipe.
Preferably, vent diameter is between 20mm to 40mm, and the adjacent air hole in described left and right is in staggered distribution.
Preferably, some suction ports are along sucking pipe length direction spread configuration, and described suction port is positioned near ventilative sponge side.
Preferably, described suction port diameter is between 20mm to 40mm, at a distance of 100mm between described adjacent suction port.
Hinge structure of the present invention is compared to be had: the gas below draught hood can first through the ventilative sponge of opening, the hot water and steam contained in gas can absorb by ventilative sponge, and then by the sucking pipe in draught hood, gas is siphoned away, the continuous air-breathing of sucking pipe, gas is constantly sucked away through ventilative sponge, this ensure that the continuity of draught hood work, make draught hood to produce the globule, affixed by ventilative sponge and air permeable plate, can prevent dropping of ventilative sponge like this.
Accompanying drawing explanation
Fig. 1 is draught hood structural representation;
Fig. 2 is draught hood explosive view;
Fig. 3 is existing draught hood structural representation.
Reference character: 1, cover body, 11, air-breathing cavity, 2, exhaust column, 3, ventilative sponge, 4, air permeable plate, 41, air hole, 5, sucking pipe, 51, suction port, 6, collecting pipe.
Embodiment
With reference to accompanying drawing, draught hood embodiment of the present invention is described further.
A kind of draught hood, comprise cover body 1, air-breathing cavity 11 is provided with in described cover body 1, described cover body 1 lower ending opening, described air-breathing cavity 11 is communicated with exhaust column 2, described opening is provided with ventilative sponge 3, described ventilative sponge 3 sidewall and cover body 1 inwall are fitted, before gas wants air-breathing cavity 11, just need first through ventilative sponge 3, hot water and steam in gas can siphon away by ventilative sponge 3 in advance, so just can avoid forming the globule in cover body 1, the gas permeability that sponge 3 of simultaneously breathing freely has had, can not the entering of barrier gas, again by sucking pipe 5 constantly exhausting, gas is constantly sucked away, such continuity that can ensure draught hood work, thus avoid the globule to produce.
The stretching that also can have to a certain degree because ventilative sponge 3 is soft, if be that ventilative sponge 3 sidewall and cover body 1 inwall are affixed, the most of water absorbed simultaneously that can sink in the middle part of ventilative sponge 3 is concentrated in the middle part of ventilative sponge 3, easily like this to drip, for above situation, the affixed air permeable plate 4 of described opening, described air permeable plate 4 is positioned at the top of ventilative sponge 3, ventilative sponge 3 is bonding with air permeable plate 4, like this because air permeable plate 4 is hard and surperficial opposed flattened, after affixed by air permeable plate 4 and cover body 1, effectively can support ventilative sponge 3, make ventilative sponge 3 also relative level, water on ventilative sponge 3 not easily gathers, do not have globule drippage.Described air permeable plate 4 can be weld with cover body 1 or be bolted.Because air permeable plate 4 is arranged on the top of ventilative sponge 3, can ensure that hot water and steam can not first encounter air permeable plate 4, thus avoid hot water and steam first on air permeable plate 4, be condensed into the globule and drip.
Certainly, described air permeable plate 4 can be provided with some equally distributed air holes 41, whole air permeable plate 4 is as netted, can effectively ensure good gas permeability like this, also can play the effect supporting ventilative sponge 3 simultaneously, further, air hole 41 diameter is between 20mm to 40mm, be preferably 30mm, the adjacent air hole 41 in described left and right is in staggered distribution, and that also leans between adjacent air hole 41 is relatively tightr simultaneously, can be laterally and vertical all at a distance of 50mm, the distribution air hole 41 can gone up largely like this, ensures the gas permeability of air permeable plate 4 more.
At least one sucking pipe 5 is provided with in described air-breathing cavity 11, described sucking pipe 5 is provided with some suction ports 51, described sucking pipe 5 one end is communicated with exhaust column 2, the other end is closed, effectively can absorb the gas in cover body 1 like this, be drawn into by gas in exhaust gas treating tower, described exhaust column 2 is positioned at cover body 1 side, can facilitate laying of sucking pipe 5 like this.As preferably, collecting pipe 6 is provided with between sucking pipe 5 and exhaust column 2, described sucking pipe 5 is three, sucking pipe 5 one end described in three is communicated with collecting pipe 6 respectively, can better ensure like this to absorb the gas in cover body 1, described exhaust column 2 is communicated with in the middle part of collecting pipe 6, can ensure that the size of suction in three sucking pipes 5 is identical like this.Further, some suction ports 51 are along sucking pipe 5 length direction spread configuration, described suction port 51 is positioned near ventilative sponge 3 side, more conveniently can absorb gas like this, can be siphoned away by the gas through ventilative sponge 3 faster, described suction port 51 diameter is between 20mm to 40mm, is preferably 30mm, at a distance of 100mm between described adjacent suction port 51, the efficiency of exhausting effectively can be ensured like this.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to the above embodiments, and all technological schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a draught hood, comprise cover body, air-breathing cavity is provided with in described cover body, described cover body lower ending opening, described air-breathing cavity is communicated with exhaust column, it is characterized in that: described opening is provided with ventilative sponge, described ventilative sponge sidewall and cover body inwall are fitted, the affixed air permeable plate of described opening, described air permeable plate is positioned at the top of ventilative sponge, described ventilative sponge and air permeable plate affixed, described air permeable plate is provided with some equally distributed air holes, at least one sucking pipe is provided with in described air-breathing cavity, described sucking pipe is provided with some suction ports, described sucking pipe one end is communicated with exhaust column, the other end is closed, described exhaust column is positioned at cover body side.
2. draught hood according to claim 1, is characterized in that: described vent diameter is between 20mm to 40mm, and the adjacent air hole in described left and right is in staggered distribution.
3. draught hood according to claim 1, is characterized in that: be provided with collecting pipe between described sucking pipe and exhaust column, and described sucking pipe is three, and the sucking pipe one end described in three is communicated with collecting pipe respectively, and described exhaust column is communicated with in the middle part of collecting pipe.
4. the draught hood according to claims 1 to 3 any one, is characterized in that: described some suction ports are along sucking pipe length direction spread configuration, and described suction port is positioned near ventilative sponge side.
5. draught hood according to claim 4, is characterized in that: described suction port diameter is between 20mm to 40mm, at a distance of 100mm between described adjacent suction port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410618046.XA CN104454667B (en) | 2014-11-05 | 2014-11-05 | Draught hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410618046.XA CN104454667B (en) | 2014-11-05 | 2014-11-05 | Draught hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104454667A true CN104454667A (en) | 2015-03-25 |
| CN104454667B CN104454667B (en) | 2016-08-24 |
Family
ID=52901246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410618046.XA Active CN104454667B (en) | 2014-11-05 | 2014-11-05 | Draught hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454667B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109775724A (en) * | 2018-09-05 | 2019-05-21 | 昆山市富乐化工有限公司 | Ammonium hydroxide manufacturing and processing equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2071976U (en) * | 1990-04-05 | 1991-02-27 | 丁守宝 | Gas curtain type gas purifier |
| JP2003293985A (en) * | 2002-04-01 | 2003-10-15 | Toyoda Gosei Co Ltd | Suction and exhaust fan |
| CN201141653Y (en) * | 2007-12-14 | 2008-10-29 | 王君 | Oil smoke discharging device with split structure |
| CN201554675U (en) * | 2009-10-22 | 2010-08-18 | 陈莹莹 | Multifunctional portable usb fan |
| CN201857412U (en) * | 2010-10-29 | 2011-06-08 | 浙江健力股份有限公司 | Water fog cooling dispersion prevention structure for seamless steel pipe drawing processing |
-
2014
- 2014-11-05 CN CN201410618046.XA patent/CN104454667B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2071976U (en) * | 1990-04-05 | 1991-02-27 | 丁守宝 | Gas curtain type gas purifier |
| JP2003293985A (en) * | 2002-04-01 | 2003-10-15 | Toyoda Gosei Co Ltd | Suction and exhaust fan |
| CN201141653Y (en) * | 2007-12-14 | 2008-10-29 | 王君 | Oil smoke discharging device with split structure |
| CN201554675U (en) * | 2009-10-22 | 2010-08-18 | 陈莹莹 | Multifunctional portable usb fan |
| CN201857412U (en) * | 2010-10-29 | 2011-06-08 | 浙江健力股份有限公司 | Water fog cooling dispersion prevention structure for seamless steel pipe drawing processing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109775724A (en) * | 2018-09-05 | 2019-05-21 | 昆山市富乐化工有限公司 | Ammonium hydroxide manufacturing and processing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104454667B (en) | 2016-08-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |