CN111322715A - New fan of hush air - Google Patents
New fan of hush air Download PDFInfo
- Publication number
- CN111322715A CN111322715A CN201811536226.8A CN201811536226A CN111322715A CN 111322715 A CN111322715 A CN 111322715A CN 201811536226 A CN201811536226 A CN 201811536226A CN 111322715 A CN111322715 A CN 111322715A
- Authority
- CN
- China
- Prior art keywords
- shell
- area
- purification
- air
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A mute type fresh air fan comprises a shell, a purification device and a centrifugal fan, wherein the shell is a hexahedron and comprises four side surfaces, a top surface and a bottom surface, a pair of side surfaces are respectively provided with an air inlet and an air outlet which are opposite, the middle part of the shell is a purification area, the rear end of the purification area is an air suction area, more than or equal to 3 detachable filter plates are arranged in the purification area, and filter net membranes are arranged on the filter plates; the front end of the purification area is provided with a sound insulation area, sound absorption cotton is arranged on the inner side shell of the sound insulation area, and a sound insulation and shock absorption device is arranged at the joint of the centrifugal fan, the filter plate and the shell; the sound insulation and shock absorption device is a rubber shock absorption pad or a damping spring shock absorber or a rubber shock absorption pad and a damping spring shock absorber, and the outer edge of the filter plate is provided with a rubber strip for wrapping. The invention has the advantages of environmental protection, energy saving and low cost, and can realize the purification of pollutants in the indoor air without increasing the energy consumption while maintaining the performance of the original fan.
Description
Technical Field
The invention relates to an air purification device, in particular to a mute type fresh air machine.
Background
The main noise of the existing fan is from the following sources: (1) noise of the motor: because the motor adopted by the actual fan manufacturer is mainly provided by the motor manufacturer, the fan manufacturer generally does not perform too much noise reduction treatment, including axial crosstalk sound generated by unbalanced rotor or axial component of electromagnetic force, aerodynamic noise generated by a cooling fan of the motor and the like, which can cause the motor and the fan to generate great noise, and the noise of the motor is basically difficult to avoid unless a high-price mute motor is used; or noise caused by the vibration generated by the interaction of the exhaust airflow of the impeller and the volute tongue; (2) mechanical noise of ventilator: the noise is generated because the whole rotor is unbalanced due to uneven abrasion of the impeller or deformation of parts caused by wind pressure; or the noise generated by the bearing and the shaft due to abrasion after the bearing operates; or noise due to poor installation or loose coupling of parts; or noise generated by resonance of a part of the machine body due to vibration generated by high-speed rotation of the impeller.
In order to inhibit resonance, the noise of the existing fresh air fan is reduced to a range which can be borne by human ears, the metal plate thickness is increased in the industry, however, the increase of the metal plate thickness not only increases the material consumption, thereby increasing the manufacturing cost, but also can not well inhibit resonance, and the noise caused by metal plate resonance is still more obvious. Because the motor generally passes through the motor support to be fixed on the volute, and its pivot is parallel with panel beating casing bottom surface usually, so at the during operation, because the effect of centrifugal force, the panel beating can take place resonance, and the noise is great.
The new fan in the market still has the problem that air flow causes higher noise at present. Although the main methods for reducing the noise of the fan are mainly reasonable adjustment of the structures of the volute tongue and the impeller, both the two methods have certain limitations, and the noise is reduced while the energy consumption is increased or the performance of the fan is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects in the prior art and provide a mute type fresh air fan which is environment-friendly, energy-saving, low in cost, capable of realizing the purification of pollutants in indoor air without increasing energy consumption and maintaining the performance of the original fan.
The technical scheme adopted by the invention for solving the technical problems is as follows: 1. a mute type fresh air fan comprises a shell (5), a purification device and a centrifugal fan (6), wherein the shell (5) is hexahedron and comprises four side surfaces, a top surface and a bottom surface, one pair of the side surfaces are respectively provided with an air inlet (1) and an air outlet (7) which are opposite, the middle part of the shell is a purification area, and the rear end of the purification area is an air suction area, and the mute type fresh air fan is characterized in that more than or equal to 3 detachable filter plates (3) are installed in the purification area, and a filter net membrane is arranged on each filter plate (3); the front end of the purification area is provided with a sound absorption area, the inner side of the sound insulation area is provided with sound absorption cotton (2), and the joint of the centrifugal fan (6) and the filter plate (3) with the shell is provided with a sound insulation damping device (4); the sound insulation and shock absorption device (4) is a rubber shock absorption pad and a damping spring shock absorber, and is symmetrically arranged according to the central axis of the shell (5).
Furthermore, the air inlet and the air outlet are connected with a flexible air pipe.
Furthermore, the shell adopts an aluminum alloy frame and a galvanized plate structure.
When the centrifugal machine is used, polluted air in a room is pumped into the sound insulation area from the air inlet through the flexible air pipe by using the centrifugal fan, sound absorption cotton in the sound absorption area absorbs part of sound generated by air flowing in the air inlet, and the sound insulation and shock absorption device around the centrifugal machine comprises a rubber shock absorption pad or a damping spring shock absorber, so that the vibration of the fan and the shell can be reduced, and the sound can be blocked in the shell and cannot generate noise outwards. In addition, in the purification area, the rubber strips wrapped on the edges of the filter plates can slow down vibration between the filter plates and the shell.
The invention has the beneficial effects that: the invention starts from the air inlet pipeline, enters the buffer area, the purification area and the air suction area after reaching the air inlet and then comes out from the air outlet to carry out a series of noise reduction and shock absorption treatment on the noise generated by the air flow, thereby ensuring the invention to realize the silent operation.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
in the figure: 1. an air inlet; 2. sound-absorbing cotton; 3. a filter plate; 4. a sound insulation and shock absorption device; 5. a fan housing; 6. a centrifugal fan; 7. and (7) air outlet.
Detailed Description
The invention is further illustrated by the following examples and figures.
Examples
The mute type fresh air fan comprises a shell, a purifying device and a centrifugal fan 6, wherein the shell is hexahedron and comprises four side surfaces, a top surface and a bottom surface, one pair of side surfaces are respectively provided with an air inlet 1 and an air outlet 7 which are opposite, the middle part of the shell is a purifying area, the rear end of the purifying area is an air suction area, 3 detachable filter plates 3 are arranged in the purifying area, and filter net films are arranged on the filter plates 3; the front end of the purification area is provided with a sound absorption area, the inner side of the sound absorption area is provided with sound absorption cotton 2, and the joint of the centrifugal fan 6 and the filter plate 3 with the shell is provided with a sound insulation and shock absorption device; the sound insulation and shock absorption device is a rubber shock absorption pad and a damping spring shock absorber, and is symmetrically arranged according to the central axis of the shell. The outer edge of the filter plate is provided with a rubber strip for wrapping. The air inlet and the air outlet are connected with a flexible air pipe. The shell adopts an aluminum alloy frame and a galvanized plate structure.
Claims (3)
1. A mute type fresh air fan comprises a shell (5), a purification device and a centrifugal fan (6), wherein the shell (5) is hexahedron and comprises four side surfaces, a top surface and a bottom surface, one pair of the side surfaces are respectively provided with an air inlet (1) and an air outlet (7) which are opposite, the middle part of the shell is a purification area, and the rear end of the purification area is an air suction area, and the mute type fresh air fan is characterized in that more than or equal to 3 detachable filter plates (3) are installed in the purification area, and a filter net membrane is arranged on each filter plate (3); the front end of the purification area is provided with a sound absorption area, the inner side of the sound absorption area is provided with sound absorption cotton (2), and a sound insulation and shock absorption device (4) is arranged at the joint of the centrifugal fan (6) and the filter plate (3) and the shell; the sound insulation and shock absorption device (4) is a rubber shock absorption pad and a damping spring shock absorber, and the sound insulation and shock absorption device (4) is symmetrically arranged according to the central axis of the shell (5).
2. The silent fresh air machine according to claim 1, wherein the air inlet (1) and the air outlet (7) are connected with a flexible air pipe.
3. The mute type fresh air machine according to claim 1 or 2, wherein the housing is made of an aluminum alloy frame or a galvanized plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811536226.8A CN111322715A (en) | 2018-12-14 | 2018-12-14 | New fan of hush air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811536226.8A CN111322715A (en) | 2018-12-14 | 2018-12-14 | New fan of hush air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111322715A true CN111322715A (en) | 2020-06-23 |
Family
ID=71166950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811536226.8A Pending CN111322715A (en) | 2018-12-14 | 2018-12-14 | New fan of hush air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111322715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001420A (en) * | 2021-10-27 | 2022-02-01 | 马祥程 | Low-noise total-heat net-effect fresh air fan |
-
2018
- 2018-12-14 CN CN201811536226.8A patent/CN111322715A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001420A (en) * | 2021-10-27 | 2022-02-01 | 马祥程 | Low-noise total-heat net-effect fresh air fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200623 |