CN214172462U - Centrifugal fan for ventilation of building - Google Patents
Centrifugal fan for ventilation of building Download PDFInfo
- Publication number
- CN214172462U CN214172462U CN202120115239.9U CN202120115239U CN214172462U CN 214172462 U CN214172462 U CN 214172462U CN 202120115239 U CN202120115239 U CN 202120115239U CN 214172462 U CN214172462 U CN 214172462U
- Authority
- CN
- China
- Prior art keywords
- ventilation
- baffle
- motor
- rotating shaft
- centrifugal fan
- 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
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 36
- 239000000428 dust Substances 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 1
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005399 mechanical ventilation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model is suitable for the technical field of centrifugal fans, and provides a centrifugal fan for ventilation of buildings, which comprises a base, a left baffle and a right baffle, wherein the base is positively provided with a motor, the motor is provided with a controller, a driving gear is arranged on an output shaft of the motor, a conveyor belt is arranged outside the driving gear, the other end of the conveyor belt is provided with a driven gear, a rotating shaft is arranged in the driven gear, a protective cover is arranged outside the conveyor belt, a bearing is arranged on the rotating shaft, the bearing is arranged on the upper end surface of the base, the right side of the base is provided with the left baffle, the right side of the left baffle is provided with the right baffle, the right end surface of the right baffle is provided with a dust cover, an air pipeline is arranged between the left baffle and the right baffle, the top of the air pipeline is provided with an exhaust pipe, the left side in the air pipeline is provided with a turntable, the turntable is arranged at the other end of the rotating shaft, the turntable is provided with an annular impeller, through the arrangement of the utility model, make the utility model discloses can stably place in the building place, improve the utility model discloses a ventilation efficiency and practicality.
Description
Technical Field
The utility model belongs to the technical field of centrifugal fan, especially, relate to a centrifugal fan is used in building ventilation.
Background
The heat capacity of the air is very low, so that when the building is not ventilated, the indoor air temperature approaches the temperature level of the inner surface of the building envelope, and the value of the indoor air temperature is close to the temperature of the outer surface. The latter is related to the color of the wall surface and the product of the thermal capacity and the thermal resistance of the structure. When a building is ventilated, outdoor air enters the room at its original temperature, is mixed with indoor air during the flow, and exchanges heat with various surfaces of the room according to the difference between the indoor and outdoor temperatures.
The ventilation can adopt two modes of natural ventilation and mechanical ventilation. The natural ventilation is ventilation for realizing indoor ventilation under the action of indoor and outdoor air temperature difference, density difference and wind pressure difference. Mechanical ventilation means that the dirty air in the building is directly or after purification discharged to the outdoor, and then fresh air is supplemented, thereby keeping the indoor air environment in accordance with the sanitary standard. Ventilation has three different functions. The air polluted by the living and living process in the room is firstly renewed by fresh air outside the room to keep the cleanliness of the indoor air to a certain minimum standard level. Such a requirement may be referred to as healthy ventilation, which is to be ensured in any climatic conditions and secondly increased heat dissipation in the body to prevent discomfort caused by skin moisture to improve comfort conditions, such ventilation may be referred to as comfort ventilation. Thirdly, when the indoor air temperature is higher than the outdoor air temperature, the building is cooled, and the method is called as cooling and ventilation of the building.
However, most of the current common ventilation fans are domestic centrifugal fans, which have low power and cannot meet the ventilation requirements of complicated ground conditions and more dust and sand in building sites.
SUMMERY OF THE UTILITY MODEL
The utility model provides a centrifugal fan is used in building ventilation aims at solving the less problem that just can not satisfy the complicated and more ventilation demand of dust and sand of building place ground conditions of ventilation fan power commonly used at present.
The utility model is realized in such a way, a centrifugal fan for ventilation of buildings comprises a base, a left baffle and a right baffle, and is characterized in that the front side of the base is provided with a motor, the motor is provided with a controller, the output shaft of the motor is provided with a driving gear, the driving gear is externally provided with a conveyor belt, the other end of the conveyor belt is provided with a driven gear, the driven gear is internally provided with a rotating shaft, the conveyor belt is externally provided with a protective cover, the rotating shaft is provided with a bearing, the bearing is arranged on the upper end surface of the base, the right side of the base is provided with the left baffle, the right baffle is arranged on the right side of the left baffle, the right end surface of the right baffle is provided with a dust cover, an air pipe is arranged between the left baffle and the right baffle, the top of the air pipe is provided with an exhaust pipe, the left side inside the air pipe is provided with a turntable, the turntable is arranged at the other end of the rotating shaft, an annular impeller is arranged on the turntable, and the motor is electrically connected with an external power supply and the controller and is controlled by the controller.
Furthermore, 1/4 sections of notches are arranged on the annular impeller.
Furthermore, the driving gear is in interference fit with the motor output shaft, and the driven gear is in interference fit with the rotating shaft.
Furthermore, a sealing gasket is arranged between the left baffle and the right baffle and the ventilation pipeline.
Furthermore, the exhaust duct is arranged in an inverted quadrangular pyramid shape with a wide upper part and a narrow lower part.
Further, the rotating shaft is welded at the center of the rotating disc.
About implementing the utility model discloses a beneficial technological effect does: firstly, because the utility model is provided with the motor, the driving gear, the conveyor belt, the driven gear, the rotating shaft, the rotating disc, the annular impeller and the exhaust pipe, the rotating speed of the motor can be adjusted by the controller, and then the motor is transmitted to the rotating disc through the conveyor belt, the gear and the rotating shaft, the centrifugal air volume is increased through the annular impeller, the exhaust speed is increased through the exhaust pipe, and the ventilation efficiency of the utility model is improved; secondly, because the utility model discloses set up left baffle, right baffle, base, safety cover and dust cover, not only feasible the utility model discloses can stably place in the building place, can also be right through safety cover and dust cover the utility model discloses play the guard action, improved the utility model discloses a practicality.
Drawings
Fig. 1 is an overall first view structural diagram of the present invention;
fig. 2 is a sectional view of the protective cover a of the present invention;
FIG. 3 is an overall second perspective view of the present invention;
fig. 4 is an overall third view structural diagram of the present invention;
fig. 5 is a schematic diagram of the internal structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-5, the utility model relates to a centrifugal fan for building ventilation, which comprises a base 1, a left baffle 5 and a right baffle 9, and is characterized in that the front of the base 1 is provided with a motor 2, the motor 2 is provided with a controller 3, an output shaft of the motor 2 is provided with a driving gear 21, a conveyer belt 7 is arranged outside the driving gear 21, the other end of the conveyer belt 7 is provided with a driven gear 61, a rotating shaft 6 is arranged in the driven gear 61, a protective cover 4 is arranged outside the conveyer belt 7, the rotating shaft 6 is provided with a bearing 8, the bearing 8 is arranged on the upper end surface of the base 1, the right side of the base 1 is provided with the left baffle 5, the right side of the left baffle 5 is provided with the right baffle 9, the right end surface of the right baffle 9 is provided with a dust cover 12, an air duct 11 is arranged between the left baffle 5 and the right baffle 9, the top of the air duct 11 is provided with an exhaust duct 10, the left side in the air duct 11 is provided with a turntable 13, the rotary disc 13 is arranged at the other end of the rotating shaft 6, the rotary disc 13 is provided with an annular impeller 14, and the motor 2 is electrically connected with an external power supply and the controller 3 and is controlled by the controller 3.
The ring-shaped impeller 14 is provided with a 1/4-section notch to facilitate the air to be discharged into the ventilation duct 11.
The driving gear 21 and the output shaft of the motor 2, the driven gear 61 and the rotating shaft 6 are in interference fit respectively, so that the motor 2 can drive the rotating shaft 6 to rotate through the driving gear 21 and the driven gear 61.
Sealing gaskets are arranged between the left baffle 5 and the right baffle 9 and the ventilation pipeline 11, so that the sealing effect is ensured.
The exhaust duct 10 is arranged in an inverted quadrangular pyramid shape with a wide upper part and a narrow lower part, so that the exhaust efficiency is improved.
The rotating shaft 6 is welded at the center of the rotating disc 13 and is tightly connected, so that the rotating shaft 6 drives the rotating disc 13 to rotate.
The utility model discloses a theory of operation does: use the utility model discloses during, be connected motor 2 and controller 3 with external power source earlier, through 3 starter motor 2 of controller, it is rotatory that the 2 output shafts of motor drive driving gear 21, and it is rotatory that driving gear 21 passes through conveyer belt 7 and drives driven gear 61, and driven gear 61 drives carousel 13 rotation through pivot 6, and when carousel 13 rotated, ring impeller 14 was along with rotating. When the ring-shaped impeller 14 rotates, centrifugal force is generated to throw air out of the notch of the ring-shaped impeller 14, the air is thrown out of the notch of the ring-shaped impeller 14 and then is collected in the ventilation pipeline 11, and due to the fact that the speed is low and the pressure is high, the air is exhausted from the ventilation pipeline 11 through the exhaust pipe 10. When the air in the ring-shaped impeller 14 is exhausted, a negative pressure is formed, and the air outside the dust cover 12 is pressed into the ring-shaped impeller 14 under the action of the atmospheric pressure. Therefore, the ring-shaped impeller 14 continuously rotates, and the air is continuously exhausted through the exhaust duct 10 under the effect of the present invention.
About implementing the utility model discloses a beneficial technological effect does: firstly, because the utility model is provided with the motor 2, the driving gear 21, the conveyor belt 7, the driven gear 61, the rotating shaft 6, the rotating disc 13, the annular impeller 14 and the exhaust pipe 10, the rotating speed of the motor 2 can be adjusted by the controller 3, and then the motor 2 is transmitted to the rotating disc 13 through the conveyor belt 7, the gear and the rotating shaft 6, the centrifugal air volume is increased through the annular impeller 14, the exhaust speed is increased through the exhaust pipe 10, and the ventilation efficiency of the utility model is improved; secondly, because the utility model discloses set up left baffle 5, right baffle 9, base 1, safety cover 4 and dust cover 12, not only made the utility model discloses can stably place in the building place, can also be right through safety cover 4 and dust cover 12 the utility model discloses play the guard action, improved the utility model discloses a practicality.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A centrifugal fan for ventilation of buildings comprises a base (1), a left baffle (5) and a right baffle (9) and is characterized in that a motor (2) is arranged on the front side of the base (1), a controller (3) is arranged on the motor (2), a driving gear (21) is arranged on an output shaft of the motor (2), a conveying belt (7) is arranged outside the driving gear (21), a driven gear (61) is arranged at the other end of the conveying belt (7), a rotating shaft (6) is arranged in the driven gear (61), a protective cover (4) is arranged outside the conveying belt (7), a bearing (8) is arranged on the rotating shaft (6), the bearing (8) is arranged on the upper end surface of the base (1), the left baffle (5) is arranged on the right side of the base (1), the right baffle (9) is arranged on the right side of the left baffle (5), right side baffle (9) right-hand member face is provided with dust cover (12), left side baffle (5) with be provided with air pipe (11) between right side baffle (9), air pipe (11) top is provided with exhaust pipe (10), the inside left side of air pipe (11) is provided with carousel (13), carousel (13) set up in pivot (6) other end, be provided with annular impeller (14) on carousel (13), motor (2) and external power source reach controller (3) electricity is connected, and receives controller (3) control.
2. A centrifugal fan for ventilation of buildings according to claim 1, characterized in that: the annular impeller (14) is provided with 1/4 sections of notches.
3. A centrifugal fan for ventilation of buildings according to claim 1, characterized in that: the driving gear (21) is in interference fit with the output shaft of the motor (2), and the driven gear (61) is in interference fit with the rotating shaft (6) respectively.
4. A centrifugal fan for ventilation of buildings according to claim 1, characterized in that: and a sealing gasket is arranged between the left baffle (5) and the right baffle (9) and the ventilation pipeline (11).
5. A centrifugal fan for ventilation of buildings according to claim 1, characterized in that: the exhaust pipe (10) is arranged to be in an inverted quadrangular pyramid shape with a wide upper part and a narrow lower part.
6. A centrifugal fan for ventilation of buildings according to claim 1, characterized in that: the rotating shaft (6) is welded at the center of the rotating disc (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120115239.9U CN214172462U (en) | 2021-01-16 | 2021-01-16 | Centrifugal fan for ventilation of building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120115239.9U CN214172462U (en) | 2021-01-16 | 2021-01-16 | Centrifugal fan for ventilation of building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214172462U true CN214172462U (en) | 2021-09-10 |
Family
ID=77593373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120115239.9U Expired - Fee Related CN214172462U (en) | 2021-01-16 | 2021-01-16 | Centrifugal fan for ventilation of building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214172462U (en) |
-
2021
- 2021-01-16 CN CN202120115239.9U patent/CN214172462U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214172462U (en) | Centrifugal fan for ventilation of building | |
| CN214199013U (en) | New trend integration building wall structure | |
| CN112268319A (en) | Household air conditioner energy-saving device | |
| WO2021109574A1 (en) | Self-rotating type dust suction apparatus for electrical installation | |
| CN101354175B (en) | Unsteady state energy-saving air conditioner air outlet with power | |
| CN201992986U (en) | Cooling fan of vacuum sintering furnace | |
| CN104373386A (en) | Centrifugal fan and air-conditioner provided with same | |
| CN210637267U (en) | Multifunctional fan | |
| CN209605332U (en) | Plant ventilation device with vapor discharge function | |
| CN218120677U (en) | Cooling tower dustproof construction | |
| CN207230613U (en) | Biological particles warming stove | |
| CN205937184U (en) | Tunnel ventilation machine | |
| CN201857781U (en) | Pump room of RH dry-type vacuum-pumping system pump station | |
| CN203783923U (en) | Centrifugal ventilator | |
| CN207131605U (en) | A kind of displaced type ventilation unit using geothermal energy | |
| CN203148156U (en) | Energy-saving ventilator for refrigeration storage | |
| CN206320054U (en) | A kind of noise reduction centrifugal fan | |
| CN207161365U (en) | Automatic frequency-conversion exhaust blower | |
| CN201659110U (en) | Dirt removal device of condenser | |
| CN204402935U (en) | Motor with air cooling direct connection boiler induced-draft fan | |
| CN206129654U (en) | Single motor double wind wheel structure of air refresher | |
| CN210531191U (en) | Temperature control fan circulating device | |
| CN204200691U (en) | Centrifugal blower and there is its air conditioner | |
| CN211854398U (en) | Air conditioning unit energy-saving device for cleaning factory building | |
| CN217209496U (en) | Heat recovery device of kitchen oil fume system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |