CN205154760U - Smoke exhaust fan structure - Google Patents
Smoke exhaust fan structure Download PDFInfo
- Publication number
- CN205154760U CN205154760U CN201520758507.3U CN201520758507U CN205154760U CN 205154760 U CN205154760 U CN 205154760U CN 201520758507 U CN201520758507 U CN 201520758507U CN 205154760 U CN205154760 U CN 205154760U
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- section
- motor
- wind outlet
- outlet section
- smoke exhaust
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Abstract
The utility model relates to a smoke exhaust fan structure, including exhaust pipe, fan, exhaust pipe bie comprises the section of induced drafting, contraction section, straight tube section, air -out section through connections to parting on the right side from a left side, the diameter of the section of induced drafting is D's straight tube, the contraction section is the toper, its macrostoma end and the section of induced drafting butt joint, and its osculum end and the butt joint of straight tube section, the cone angle of contraction section is 16 - 24, the diameter of straight tube section is 0.25D~0.35D, and the air -out section is the conical duct, and its cone angle is 15~25, and the other end of straight tube section connects with the osculum terminal pair of air -out section, the fan sets up in the air -out section.
Description
Technical field
The utility model relates to a kind of air exhausting device, particularly a kind of smoke exhaust fan structure.
Background technique
Along with the development of building industry, Building Fire Protection problem becomes and becomes more and more important.In recent years the modern architecture thing built up generally is provided with fire-fighting smoke exhaust system, to reduce personnel and property loss when fire occurs.And underground system engineering is as tunnel has, and space is little, air-conditioning requirement high, smoke exhaust fan doublely will do daily logical wind action toward contact at ordinary times.So just have higher requirement to smoke exhaust fan, the normal operation of (280 DEG C of normally work 0.5 hour, 250 DEG C of normally work 1 hour) under smoke exhaust fan should meet fire fighting state, meets the normal operation of mean time ventilation again.And current fume extractor not only smoke exhaust efficiency is slow, smoking ability, and its motor guiding high-temperature flue gas while also receives the temperatures involved of large degree, thus affect motor rotation stability, if be that the heat that itself produces can not distribute in time in running at ordinary times, also affect the stability of blower fan long-time running.
Summary of the invention
The purpose of this utility model is exactly in order to avoid the deficiency in background technique, provides a kind of smoke exhaust fan structure.
For achieving the above object, the utility model adopts following technological scheme: a kind of smoke exhaust fan structure, comprise gas exhaust duct, blower fan, described gas exhaust duct is from left to right respectively by air draught section, contraction section, straight length, wind outlet section is through to be connected and composed, the diameter of described air draught section is the straight tube of D, described contraction section is taper, its big opening end docks with air draught section, its osculum end docks with straight length, the cone angle of described contraction section is 16 °-24 °, the diameter of described straight length is 0.25D ~ 0.35D, wind outlet section is conical pipe, its cone angle is 15 ° ~ 25 °, the other end of straight length docks with the osculum end of wind outlet section, described blower fan is arranged in wind outlet section.
Optimize for one of the present utility model, described blower fan comprises motor and fan blade, and motor is connected in wind outlet section by connection bracket, and the clutch end of motor is connected with described fan blade, and the air-out direction of described blower fan is towards the right-hand member of wind outlet section.
Optimize for one of the present utility model, connection bracket is provided with motor mounting cylinder, and described motor is placed in described motor mounting cylinder, and the clutch end of motor is connected with described fan blade through motor mounting cylinder.
Optimize for one of the present utility model, the radial side of motor mounting cylinder is provided with air intake pipe, and air intake pipe one end is communicated with motor mounting cylinder, and its other end passes the wall of wind outlet section and is communicated with atmosphere outside.
One of the present utility model is optimized, in described air intake pipe, is provided with blower.
For of the present utility model one optimize, the right-hand member port of wind outlet section is provided with annular conduit, annular conduit radial outside be provided with some nozzles be connected with annular conduit, be provided with the water pipe be connected with annular conduit outside wind outlet section.
Optimize for one of the present utility model, described fan blade is positioned at the right side of motor, and the clutch end of motor is connected with fan blade center.
The utility model is compared with background technique, have rational in infrastructure, adopt and first shrink the gas exhaust duct then expanded gradually, in wind outlet section, blower fan is set, thus be exactly air-flow from the coarse to fine, to accelerate gas flow rate, and to the flue gas outside air draught section, there is suction-operated, and draw and the nozzle ejection water crossed on annular conduit at wind outlet section, thus by the flue dust reducing flue-gas temperature and reduce in flue gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of smoke exhaust fan structure.
Fig. 2 is A direction view.
Embodiment
Embodiment 1: with reference to Fig. 1 and 2.A kind of smoke exhaust fan structure, comprise gas exhaust duct 1, blower fan, described gas exhaust duct 1 is from left to right respectively by air draught section 11, contraction section 12, straight length 13, wind outlet section 14 is through to be connected and composed, the diameter of described air draught section 11 is the straight tube of D, described contraction section 12 is taper, its big opening end docks with air draught section 11, its osculum end docks with straight length 13, the cone angle of described contraction section 12 is 16 °-24 °, the diameter of described straight length 13 is 0.25D ~ 0.35D, wind outlet section 14 is conical pipe, its cone angle is 15 ° ~ 25 °, the other end of straight length 13 docks with the osculum end of wind outlet section 14, described blower fan is arranged in wind outlet section 14.Described blower fan comprises motor 2 and fan blade 3, and motor 2 is connected in wind outlet section 14 by connection bracket 10, and the clutch end of motor 2 is connected with described fan blade 3, and the air-out direction of described blower fan is towards the right-hand member of wind outlet section 14.Connection bracket 10 is provided with motor mounting cylinder 6, and described motor 2 is placed in described motor mounting cylinder 6, and the clutch end of motor 2 is connected with described fan blade 3 through motor mounting cylinder 6.The radial side of motor mounting cylinder 6 is provided with air intake pipe 8, and air intake pipe 8 one end is communicated with motor mounting cylinder 6, and its other end passes the wall of wind outlet section 14 and is communicated with atmosphere outside.Blower 9 is provided with in described air intake pipe 8.The right-hand member port of wind outlet section 14 is provided with annular conduit 4, annular conduit 4 radial outside be provided with some nozzles 5 be connected with annular conduit 4, be provided with the water pipe 7 be connected with annular conduit 4 outside wind outlet section 14.Described fan blade 3 is positioned at the right side of motor 2, and the clutch end of motor 2 is connected with fan blade 3 center.
It is to be understood that: although the present embodiment to be contrasted detailed description to the utility model; but these explanations; just to simple declaration of the present utility model; instead of to restriction of the present utility model; any innovation and creation do not exceeded in the utility model connotation, all fall in protection domain of the present utility model.
Claims (7)
1. a smoke exhaust fan structure, it is characterized in that comprising gas exhaust duct, blower fan, described gas exhaust duct is from left to right respectively by air draught section, contraction section, straight length, wind outlet section is through to be connected and composed, the diameter of described air draught section is the straight tube of D, described contraction section is taper, its big opening end docks with air draught section, its osculum end docks with straight length, the cone angle of described contraction section is 16 °-24 °, the diameter of described straight length is 0.25D ~ 0.35D, wind outlet section is conical pipe, its cone angle is 15 ° ~ 25 °, the other end of straight length docks with the osculum end of wind outlet section, described blower fan is arranged in wind outlet section.
2. smoke exhaust fan structure according to claim 1, it is characterized in that: described blower fan comprises motor and fan blade, motor is connected in wind outlet section by connection bracket, and the clutch end of motor is connected with described fan blade, and the air-out direction of described blower fan is towards the right-hand member of wind outlet section.
3. smoke exhaust fan structure according to claim 2, is characterized in that: connection bracket is provided with motor mounting cylinder, and described motor is placed in described motor mounting cylinder, and the clutch end of motor is connected with described fan blade through motor mounting cylinder.
4. smoke exhaust fan structure according to claim 3, is characterized in that: the radial side of motor mounting cylinder is provided with air intake pipe, and air intake pipe one end is communicated with motor mounting cylinder, and its other end passes the wall of wind outlet section and is communicated with atmosphere outside.
5. smoke exhaust fan structure according to claim 4, is characterized in that: be provided with blower in described air intake pipe.
6. smoke exhaust fan structure according to claim 1, it is characterized in that: the right-hand member port of wind outlet section is provided with annular conduit, annular conduit radial outside be provided with the nozzle be connected with annular conduit, be provided with the water pipe be connected with annular conduit outside wind outlet section.
7. smoke exhaust fan structure according to claim 2, is characterized in that: described fan blade is positioned at the right side of motor, the clutch end of motor is connected with fan blade center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520758507.3U CN205154760U (en) | 2015-09-28 | 2015-09-28 | Smoke exhaust fan structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520758507.3U CN205154760U (en) | 2015-09-28 | 2015-09-28 | Smoke exhaust fan structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154760U true CN205154760U (en) | 2016-04-13 |
Family
ID=55690461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520758507.3U Expired - Fee Related CN205154760U (en) | 2015-09-28 | 2015-09-28 | Smoke exhaust fan structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757511A (en) * | 2018-07-17 | 2018-11-06 | 广州市泰昌实业有限公司 | A kind of high-temperature axial-flow smoke exhaust fan and high-rise smoke evacuation system |
-
2015
- 2015-09-28 CN CN201520758507.3U patent/CN205154760U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757511A (en) * | 2018-07-17 | 2018-11-06 | 广州市泰昌实业有限公司 | A kind of high-temperature axial-flow smoke exhaust fan and high-rise smoke evacuation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20170928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |