CN204738988U - Fire protection and smoke exhaust fan - Google Patents
Fire protection and smoke exhaust fan Download PDFInfo
- Publication number
- CN204738988U CN204738988U CN201520362933.5U CN201520362933U CN204738988U CN 204738988 U CN204738988 U CN 204738988U CN 201520362933 U CN201520362933 U CN 201520362933U CN 204738988 U CN204738988 U CN 204738988U
- Authority
- CN
- China
- Prior art keywords
- motor
- impeller
- exhaust fan
- smoke exhaust
- motor casing
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a fire -fighting equipment field, concretely relates to fire protection and smoke exhaust fan, its characterized in that: include exhaust pipe, impeller, impeller shaft and set up the drive arrangement outside exhaust pipe, the impeller includes the ring gear and sets up the blade in the ring gear, and the impeller is rotatable to be set up on the impeller shaft of exhaust pipe central authorities, drive arrangement is including setting up in the motor casing of exhaust pipe outer wall, the drive gear who sets up the motor in the motor casing and link to each other with motor shaft, and this drive gear meshes with the ring gear, last air intake and the air outlet of being equipped with of impeller shell. The utility model provides a fire protection and smoke exhaust fan sets up the motor in exhaust pipe external drive rotating impeller and discharges fume, avoids the high temperature flue gas directly to flow through the motor outer wall, including introduces outside air cooling, can realize good radiating effect, because the motor does not occupy the wind channel inner space of discharging fume, the effective area who discharges fume is big, and the ventilation effect is good.
Description
Technical field
The utility model relates to fire-fighting equipment field, is specifically related to a kind of smoke exhaust fan.
Background technique
Along with the development of building industry, the fire safety problem of building becomes more and more important.In recent years the modern architecture built up generally is provided with fire-fighting smoke exhaust system, and system is primarily of several part composition such as induction installation, control gear, smoke duct and smoke exhaust fan.Smoke exhaust fan is the core component of fire-fighting smoke exhaust system, develops high performance smoke exhaust fan and will produce good economic benefit and social benefit.At present, separate ventilation double layer construction in domestic general smoke exhaust fan adopts, inner core bears motor radiating and tissue hyperthermia flue gas conducts heat to motor, and the conveying of high-temperature flue gas born by urceolus.Inner core arranges circulation impeller, quotes pipeline external air to electric motor temperature reduction, ensures that blower fan at high temperature normally runs.This type of blower fan is due to Heat-dissipating impeller of motor consumed power and produce noise, makes the overall energy consumption increase of blower fan, noise increasing, effectively utilizes power reduction.
For solving this problem, mandate publication number is that the use new patent of CN200985907Y provides one from heat radiating type smoke exhaust fan, primarily of urceolus, inner core, impeller sets, motor, guide plate, guide duct composition, it is characterized in that between inner core and urceolus, arrange air inducing conduit, two air inducing conduits laterally left and right are distributed in urceolus two ends, inner core and urceolus are linked together, sets out windbend pipe in inner core front end.Though noise and the power that can reduce Heat-dissipating impeller of motor generation from heat radiating type smoke exhaust fan that this model utility provides, but still there is following problem: because motor is arranged in discharge flue, motor is in hot environment, adopt air inducing pipeline radiating effect not ideal enough, the easy overheating failure of motor, in addition, motor takies smoke duct inner space, available ventilation area is little, and smoke discharging effect is bad.
Model utility content
For overcoming deficiency of the prior art, the utility model provides the smoke exhaust fan that a kind of good heat dissipation effect, vent area are large.
For achieving the above object, the technical solution adopted in the utility model is as follows: a kind of smoke exhaust fan, it is characterized in that: comprise gas exhaust duct, impeller, impeller shaft and the drive unit be arranged at outside gas exhaust duct, described impeller comprises gear ring and is arranged at the blade in gear ring, on the rotatable impeller shaft being arranged at gas exhaust duct central authorities of impeller, described drive unit comprises the motor casing being arranged at gas exhaust duct outer wall, the actuation gear being arranged at the motor in motor casing and being connected with machine shaft, this actuation gear engages with gear ring, described motor casing is provided with intake grill and exhaust outlet.
Further, described motor rack is located at motor casing inside, forms ventilation flue between motor and motor casing.
Further, flow channel is provided with in described motor casing.
Further, described gas exhaust duct inwall is provided with the shower nozzle being communicated with flow channel.
Further, described intake grill is arranged near actuation gear place on motor casing, and described exhaust outlet is arranged in impeller housing near motor afterbody place.
Further, described gas exhaust duct inwall scribbles fire resistant coating.
Seen from the above description, motor is arranged at the smoke evacuation of gas exhaust duct external drive wheel rotation by the smoke exhaust fan that the utility model provides, and avoids high-temperature flue gas directly to flow through motor outer wall, adds and introduces outside air cooling, can realize good radiating effect; Because motor does not take smoke duct inner space, the useful area of smoke evacuation is large, and ventilation effect is good, safe and reliable, the simple structure of equipment, and component is cheap, and manufacturing process is simple, therefore has stronger use value and market value.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model smoke exhaust fan.
Fig. 2 is the generalized section of the utility model smoke exhaust fan.
Fig. 3 is the generalized section of the utility model smoke exhaust fan.
Embodiment
Below by way of embodiment, the utility model will be further described.
The utility model provides a kind of smoke exhaust fan, motor is arranged at the smoke evacuation of gas exhaust duct external drive wheel rotation by the smoke exhaust fan that the utility model provides, avoid high-temperature flue gas directly to flow through motor outer wall, add and introduce outside air cooling, good radiating effect can be realized; Because motor does not take smoke duct inner space, the useful area of smoke evacuation is large, and ventilation effect is good.
As shown in Figure 1 to Figure 3, described smoke exhaust fan, comprise gas exhaust duct 1, impeller 2, impeller shaft 3 and the drive unit 4 be arranged at outside gas exhaust duct, the blade 22 that described impeller 2 comprises gear ring 21 and is arranged in gear ring 21, on the rotatable impeller shaft 3 being arranged at gas exhaust duct 1 central authorities of impeller 2, described drive unit 4 comprises the motor casing 41 being arranged at gas exhaust duct 1 outer wall, the actuation gear 43 being arranged at the motor 42 in motor casing 41 and being connected with motor 42 rotating shaft 421, this actuation gear 43 engages with gear ring 21, described motor casing 41 is provided with intake grill 411 near actuation gear 43 place, impeller housing 41 is provided with exhaust outlet 412 near motor 42 afterbody place, it is inner that described motor 42 is set up in motor casing 41, ventilation flue 413 is formed between motor 42 and motor casing 41, flow channel 414 is provided with in motor casing 41, gas exhaust duct 1 inwall is provided with the shower nozzle 11 being communicated with flow channel 414, gas exhaust duct 1 inwall scribbles fire resistant coating.
Described smoke exhaust fan working procedure is as follows: motor 42 drives gear ring 21 to rotate by actuation gear 43, and then drives impeller 2 is rotated, and high-temperature flue gas is sucked gas exhaust duct 1; Due to the suction function in gas exhaust duct 1, outside air enters in gas exhaust duct 1 via intake grill 411, ventilation flue 413 and exhaust outlet 412, cools motor 42; Flow channel 414 in motor casing 41 is communicated with waterworks for firefighting, and after waterworks for firefighting starts, the current that shower nozzle 11 sprays are lowered the temperature and dedusting to high-temperature flue gas.
Above are only some embodiments of the present utility model, but design concept of the present utility model is not limited thereto, all changes utilizing this design the utility model to be carried out to unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (6)
1. a smoke exhaust fan, it is characterized in that: the drive unit comprising gas exhaust duct, impeller, impeller shaft and be arranged at outside gas exhaust duct, described impeller comprises gear ring and is arranged at the blade in gear ring, on the rotatable impeller shaft being arranged at gas exhaust duct central authorities of impeller, described drive unit comprises the motor casing being arranged at gas exhaust duct outer wall, the actuation gear being arranged at the motor in motor casing and being connected with machine shaft, this actuation gear engages with gear ring, described motor casing is provided with intake grill and exhaust outlet, and exhaust outlet is communicated with gas exhaust duct.
2. smoke exhaust fan according to claim 1, is characterized in that: described motor rack is located at motor casing inside, forms ventilation flue between motor and motor casing.
3. smoke exhaust fan according to claim 1, is characterized in that: be provided with flow channel in described motor casing.
4. smoke exhaust fan according to claim 3, is characterized in that: described gas exhaust duct inwall is provided with the shower nozzle being communicated with flow channel.
5. smoke exhaust fan according to claim 1, is characterized in that: described intake grill is arranged near actuation gear place on motor casing, and described exhaust outlet is arranged in impeller housing near motor afterbody place.
6. smoke exhaust fan according to claim 1, is characterized in that: described gas exhaust duct inwall scribbles fire resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520362933.5U CN204738988U (en) | 2015-05-29 | 2015-05-29 | Fire protection and smoke exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520362933.5U CN204738988U (en) | 2015-05-29 | 2015-05-29 | Fire protection and smoke exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204738988U true CN204738988U (en) | 2015-11-04 |
Family
ID=54420727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520362933.5U Expired - Fee Related CN204738988U (en) | 2015-05-29 | 2015-05-29 | Fire protection and smoke exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204738988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209933A (en) * | 2017-07-03 | 2019-01-15 | 芜湖美的厨卫电器制造有限公司 | Blower portion dress and gas heater |
-
2015
- 2015-05-29 CN CN201520362933.5U patent/CN204738988U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209933A (en) * | 2017-07-03 | 2019-01-15 | 芜湖美的厨卫电器制造有限公司 | Blower portion dress and gas heater |
| CN109209933B (en) * | 2017-07-03 | 2024-02-20 | 芜湖美的厨卫电器制造有限公司 | Fan part dress and gas heater |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 Termination date: 20160529 |