CN202851397U - Fire-fighting draught fan - Google Patents
Fire-fighting draught fan Download PDFInfo
- Publication number
- CN202851397U CN202851397U CN 201220505276 CN201220505276U CN202851397U CN 202851397 U CN202851397 U CN 202851397U CN 201220505276 CN201220505276 CN 201220505276 CN 201220505276 U CN201220505276 U CN 201220505276U CN 202851397 U CN202851397 U CN 202851397U
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- air
- inner core
- air duct
- fire
- motor
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Abstract
The utility model provides a fire-fighting draught fan, and belongs to the technical field of engineering elements. The fire-fighting draught fan solves the problems that an existing fire-fighting draught fan is poor in heat-dissipation effect and short in service life. The fire-fighting draught fan comprises a round-tube-shaped air barrel and an inner barrel located in the air barrel, wherein two ends of the inner barrel are sealed, the inner barrel is fixedly connected with the air barrel, a motor is arranged in a hollow cavity of the inner barrel, and one end of a rotation shaft of the motor penetrates out of the inner barrel and is fixedly connected with an air inlet impeller. The fire-fighting draught fan is characterized in that the air barrel is fixedly connected with an air inlet pipe and an air outlet pipe, one ends of the air inlet pipe and the air outlet pipe are both communicated with the hollow cavity of the inner barrel, the other ends of the air inlet pipe and the air outlet pipe are both located at the outer side of the air barrel, and the rotation shaft of the motor is fixedly connected with a cooling impeller enabling the air to enter from the air inlet pipe and to be exhausted from the air outlet pipe. The fire-fighting draught fan is good in heat-dissipation and cooling effect, long in service life, and high in reliability of fire-fighting safety.
Description
Technical field
The utility model belongs to the engineering element technical field, relates to a kind of firefighting security device, particularly a kind of firefighting fan.
Background technique
In various disasters, fire be the most frequent, threaten one of the major casualty of public security and social development the most at large, the annual personnel that die in fire are countless, because can produce a large amount of poison gas when fire occurs, such as CO, CO
2, HCl etc., also can discharge a large amount of heat and consume a large amount of oxygen simultaneously.According to statistics, all causing owing to flue gas exerts a gradual, uplifting influence on anoxic more than 50% in the fire fatality number.Therefore, for support personnel's safety evacuation and be conducive to the fire-fighting remedial efforts, generally in building, be equipped with Smoke prevention and fume extractor.Firefighting fan be a kind of can be under continuously operation more than 60 minutes under 300 ℃ of high temperature conditions, 100 ℃ of temperature conditions the continuous industrial fan that do not damage in 20 hours/time of operation, it can be high temperature air dirty in the building directly or drain into outdoor after purifying, again ozone is replenished into, thereby guaranteeing indoor quality of air environment requirement, is a kind of fire control smoke exhausting device of commonly using.
Existing firefighting fan includes air duct and is arranged on air duct interior motor, impeller.Existing firefighting fan all exists radiating effect poor, the problems such as the easy damage of motor.Such as Chinese patent application (notification number: CN201696348U) disclose a kind of firefighting fan, comprise air duct and be arranged on the transmission device of using fluid motor-driven in the air duct, be connected with the wind wheel of twisted shape blade on the transmission device axle, be evenly distributed in nine fan blades on the wind wheel, be provided with between air duct inwall and the transmission device for guiding wind direction and passive stator, the intake grill end of air duct also is provided with protective housing.This firefighting fan is when getting rid of high-temperature flue gas, and motor is worked under the condition of high temperature for a long time and be can not get dispelling the heat timely and cooling off, and damages easily, working life is shorter, also can affect the running of whole firefighting fan, can not get rid of timely flue gas, reduce the reliability of security against fire.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed that a kind of motor radiating is effective, the firefighting fan of long service life, good reliability.
The purpose of this utility model can realize by following technical proposal: a kind of firefighting fan, comprise cylindrical air duct and the inner core that is positioned at air duct and closed at both ends, described inner core is fixedly connected with air duct, be provided with motor in the described inner core cavity, an end of machine shaft passes inner core and is fixedly connected with intake air impeller; It is characterized in that, be fixedly connected with air intake pipe and exhaust duct on the described air duct, an end of described air intake pipe and exhaust duct all is connected with the inner core cavity, and the another port all is positioned at the air duct outside; Also be fixedly connected with on the described machine shaft air is entered from air intake pipe, the cooling wheel of discharging from exhaust duct.
The motor of this firefighting fan is arranged on one independently in the inner core cavity, and machine shaft is provided with cooling wheel, and air duct is provided with air intake pipe and the air outlet tube that is connected with the inner core cavity.This firefighting fan is when operation, and the motor operation drives intake air impeller and rotates, and the high-temperature flue gas in the building can be discharged from air duct by the effect of impeller.Simultaneously in running, the rotation of motor also can drive the rotation of cooling wheel, can accelerate gas flow in the inner core cavity by the effect of cooling wheel, thereby so that extraneous normal temperature or cryogenic gas enter from air intake pipe in the inner core cavity, original relatively high gas of temperature in the inner core cavity is discharged from exhaust duct, the effect of heat radiation and cooling is better, motor is in a working environment that relative temperature is lower, not fragile, long service life, guarantee the normal operation of blower fan, improved the reliability of security against fire.
In above-mentioned firefighting fan, also be provided with the cover plate with spiral case on the described inner core end face; Described spiral case is connected with the inner core cavity; Described exhaust duct is connected with spiral case; Described cooling wheel is positioned at spiral case.Design by spiral case, cooling wheel is arranged in spiral case, the air-flow that produces in rotation process contacts with the inwall of spiral case and can produce a comparatively uniformly air pressure, thereby makes the flowability of gas in the inner core cavity and stability better, and the heat radiation of playing and cooling effect are also better.
In above-mentioned firefighting fan, described spiral case offers window on the side relative with cooling wheel, is provided with the cover plate that is complementary with it and can dismantles on the described window.Offer window on the spiral case and at window the cover plate that should be able to dismantle mutually is housed, made things convenient for cleaning and maintenance to cooling wheel.
In above-mentioned firefighting fan, be bolted to connection between described cover plate and the inner core.Cover plate is connected on the inner core and can dismantles by bolt, has made things convenient for installation and the maintenance of motor.
In above-mentioned firefighting fan, described air intake pipe is positioned at the described air duct outside near the intake air impeller place; Described exhaust duct is positioned at the described air duct outside near the cooling wheel place.Air intake pipe is corresponding with the airflow direction in the inner core cavity with the position setting of exhaust duct, thereby the effect of the cooling that plays is better.
In above-mentioned firefighting fan, also be provided with fixed support on the outside of described air duct, the wiring of described motor is passed air intake pipe and is fixed on the fixed support.The wiring of motor passes from air intake pipe outside the air duct, not be used in addition perforate on the air duct, convenience comparatively.
In above-mentioned firefighting fan, be connected by some guide vanes between described inner core and the air duct.Play the effect that a water conservancy diversion is accelerated gas flow by guide plate is set, thereby so that blower fan is better to the eliminating effect of flue gas.Can also reduce simultaneously the friction factor of air-flow by the effect of guide plate, reduce the vibrating noise of blower fan.
In above-mentioned firefighting fan, described air duct, inner core and cover plate all adopt exotic material to make.Air duct, inner core and cover plate all are to operate under hot environment for a long time, adopt exotic material to be manufactured with and are beneficial to and improve its working life.
Compared with prior art, this firefighting fan has the following advantages:
1, motor is arranged in the inner core with enclosed cavity, be connected with cooling wheel on the machine shaft, can accelerate gas flow in the inner core cavity by the effect of cooling wheel, extraneous normal temperature or cryogenic gas enter from air intake pipe, the relatively high gas of temperature is discharged from exhaust duct in the inner core cavity, can play preferably cooling effect, is difficult for causing motor to damage, working life is longer, has improved the reliability of security against fire.
2, the cover plate place of inner core adopts the scroll casing type design, flowability and the good stability of gas in the inner core cavity, and the cooling effect that plays is better.
3, all removably connect between cover plate and inner core and cover plate and the spiral case, made things convenient for cleaning and maintenance.
Description of drawings
Fig. 1 is the structural representation of this firefighting fan.
Fig. 2 is the assembling schematic representation of this firefighting fan cover plate.
Among the figure, 1, air duct; 2, inner core; 3, motor; 4, intake air impeller; 5, air intake pipe; 6, exhaust duct; 7, cooling wheel; 8, cover plate; 9, spiral case; 10, cover plate; 11, guide vane.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Shown in Fig. 1-2, this firefighting fan comprises cylindrical air duct 1 and the inner core 2 that is positioned at air duct 1 and closed at both ends.Inner core 2 is fixedly connected with air duct 1.Be fixedly connected with air intake pipe 5 and exhaust duct 6 on the air duct 1, an end of air intake pipe 5 and exhaust duct 6 all is connected with inner core 2 cavitys, and the another port all is positioned at air duct 1 outside.Be provided with motor 3 in inner core 2 cavitys, an end of motor 3 rotating shafts passes inner core 2 and is fixedly connected with intake air impeller 4.Also be fixedly connected with in motor 3 rotating shafts air is entered from air intake pipe 5, the cooling wheel 7 of discharging from exhaust duct 6.Air intake pipe 5 is positioned at air duct 1 outside near intake air impeller 4 places; Exhaust duct 6 is positioned at described air duct 1 outside near cooling wheel 7 places.Also be provided with fixed support on the outside of air duct 1, the wiring of motor 3 is passed air intake pipe 5 and is fixed on the fixed support.
More particularly, also be provided with the cover plate 8 with spiral case 9 on inner core 2 end faces, be bolted to connection between cover plate 8 and the inner core 2.Spiral case 9 is connected with inner core 2 cavitys, and exhaust duct 6 is connected with spiral case 9, and cooling wheel 7 is positioned at spiral case 9.Spiral case 9 and cooling wheel 7 offer window on the relative side, are provided with the cover plate 10 that is complementary with it and can dismantles on the window.Be connected by some guide vanes 11 between inner core 2 and the air duct 1.Air duct 1, inner core 2 and cover plate 8 all adopt exotic material to make.
This firefighting fan is when operation, and motor 3 operations drive intake air impeller 4 and rotate, and the high-temperature flue gas in the building can be discharged from air duct 1 by the effect of impeller.Simultaneously in running, the rotation of motor 3 also can drive the rotation of cooling wheel 7, can accelerate gas flow in inner core 2 cavitys by the effect of cooling wheel 7, thereby so that extraneous normal temperature or cryogenic gas enter from air intake pipe 5 in inner core 2 cavitys, original relatively high gas of temperature in inner core 2 cavitys is discharged from exhaust duct 6, motor 3 is played the effect of cooling and heat radiation.
The motor 3 cooling effects of this firefighting fan are better, are difficult for causing damage, and working life is longer, guaranteed that blower fan can operate normally, has improved the reliability of security against fire.Simultaneously, cover plate 8 places of this firefighting fan inner core 2 adopt the design of spiral case 9 formulas, flowability and the good stability of gas in inner core 2 cavitys, and the cooling effect that plays is better, all removably connect between cover plate 8 and inner core 2 and cover plate 10 and the spiral case 9, cleaning and maintenance are all comparatively convenient.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as air duct 1, inner core 2, motor 3, intake air impeller 4, air intake pipe 5, exhaust duct 6, cooling wheel 7, cover plate 8, spiral case 9, cover plate 10, guide vane 11, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (8)
1. firefighting fan, comprise cylindrical air duct (1) and be positioned at the inner core (2) of air duct (1) and closed at both ends, described inner core (2) is fixedly connected with air duct (1), be provided with motor (3) in described inner core (2) cavity, an end of motor (3) rotating shaft passes inner core (2) and is fixedly connected with intake air impeller (4); It is characterized in that be fixedly connected with air intake pipe (5) and exhaust duct (6) on the described air duct (1), an end of described air intake pipe (5) and exhaust duct (6) all is connected with inner core (2) cavity, the another port all is positioned at air duct (1) outside; Also be fixedly connected with in described motor (3) rotating shaft air is entered from air intake pipe (5), the cooling wheel (7) of discharging from exhaust duct (6).
2. a kind of firefighting fan according to claim 1 is characterized in that, also is fixed with the cover plate (8) with spiral case (9) on described inner core (2) end face; Described spiral case (9) is connected with inner core (2) cavity; Described exhaust duct (6) is connected with spiral case (9); Described cooling wheel (7) is positioned at spiral case (9).
3. a kind of firefighting fan according to claim 2 is characterized in that, described spiral case (9) offers window on the side relative with cooling wheel (7), is provided with the cover plate (10) that is complementary with it and can dismantles on the described window.
4. according to claim 2 or 3 described a kind of firefighting fans, it is characterized in that, be bolted to connection between described cover plate (8) and the inner core (2).
5. according to claim 1 and 2 or 3 described a kind of firefighting fans, it is characterized in that described air intake pipe (5) is positioned at described air duct (1) outside and locates near intake air impeller (4); Described exhaust duct (6) is positioned at described air duct (1) outside and locates near cooling wheel (7).
6. a kind of firefighting fan according to claim 5 is characterized in that, also is provided with fixed support on the outside of described air duct (1), and the wiring of described motor (3) is passed air intake pipe (5) and is fixed on the fixed support.
7. a kind of firefighting fan according to claim 6 is characterized in that, is connected by some guide vanes (11) between described inner core (2) and the air duct (1).
8. a kind of firefighting fan according to claim 4 is characterized in that, described air duct (1), inner core (2) and cover plate (8) all adopt exotic material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220505276 CN202851397U (en) | 2012-09-28 | 2012-09-28 | Fire-fighting draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220505276 CN202851397U (en) | 2012-09-28 | 2012-09-28 | Fire-fighting draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851397U true CN202851397U (en) | 2013-04-03 |
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ID=47982604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220505276 Expired - Fee Related CN202851397U (en) | 2012-09-28 | 2012-09-28 | Fire-fighting draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851397U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952666A (en) * | 2016-06-08 | 2016-09-21 | 成都聚智工业设计有限公司 | Novel fire fighting draught fan |
| CN110243739A (en) * | 2019-06-21 | 2019-09-17 | 衢州刚度智能科技有限公司 | A kind of portable scene of fire environmental detection set |
-
2012
- 2012-09-28 CN CN 201220505276 patent/CN202851397U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952666A (en) * | 2016-06-08 | 2016-09-21 | 成都聚智工业设计有限公司 | Novel fire fighting draught fan |
| CN110243739A (en) * | 2019-06-21 | 2019-09-17 | 衢州刚度智能科技有限公司 | A kind of portable scene of fire environmental detection set |
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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: 20130403 Termination date: 20180928 |