CN106989060A - Single air intake centrifugal ventilation blower - Google Patents
Single air intake centrifugal ventilation blower Download PDFInfo
- Publication number
- CN106989060A CN106989060A CN201710422130.8A CN201710422130A CN106989060A CN 106989060 A CN106989060 A CN 106989060A CN 201710422130 A CN201710422130 A CN 201710422130A CN 106989060 A CN106989060 A CN 106989060A
- Authority
- CN
- China
- Prior art keywords
- spiral case
- air intake
- snail tongue
- ventilation blower
- single air
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/422—Discharge tongues
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4233—Fan casings with volutes extending mainly in axial or radially inward direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of single air intake centrifugal ventilation blower, including base, inlet box and spiral case, support is symmetrically installed with by screw above the base, spiral case is provided with above support, spiral case is welded on support, interior snail tongue is provided with the inside of the snail tongue of spiral case, the noise reduction layer of filled honeycomb shape in cavity, cavity is constituted between interior snail tongue and snail tongue；The front side of spiral case is provided with air inlet, and air inlet connects the outlet of inlet box by flange, and the import of inlet box is such as with several silencer sheets, and end section is in herringbone to silencer sheet windward；Silencer sheet reduction noise in the snail tongue and inlet box that single air intake centrifugal ventilation blower passes through double-decker, improves mechanical efficiency, is worth promoting.
Description
Technical field
The present invention relates to centrifugal fan technical field, especially a kind of single air intake centrifugal ventilation blower.
Background technology
Centrifugal blower is the mechanical energy by input, improves gas pressure and supplies gas side by side the machinery of body, it is a kind of driven
Fluid machinery.Centrifugal blower is widely used in the ventilation of factory, mine, tunnel, cooling tower, vehicle, ship and building, dust discharge
And cooling；The ventilation of boiler and industrial furnace and air inducing；Cooling and ventilation in the apparatus of air conditioning and domestic electric appliance；Paddy
The drying of thing and select and recommend；Inflation and propulsion of wind-tunnel wind regime and aircushion vehicle etc..
In order to provide higher pressure, part centrifugal blower fan is by the way of single air intake, but this mode can be carried significantly
High noisy, reduces mechanical efficiency.
The content of the invention
The present invention is intended to provide a kind of reduction noise, improves single air intake centrifugal ventilation blower of mechanical efficiency.
To achieve the above object, the present invention provides following technical scheme：Single air intake centrifugal ventilation blower, including base, air intake
Symmetrically it is installed with above support, support by screw above case and spiral case, the base and is provided with spiral case, spiral case is welded on support
On, interior snail tongue is provided with the inside of the snail tongue of spiral case, the noise reduction of filled honeycomb shape in cavity, cavity is constituted between interior snail tongue and snail tongue
Layer；
The front side of spiral case is provided with air inlet, and air inlet connects the outlet of inlet box by flange, and the import of inlet box is such as with number
Individual silencer sheet, end section is in herringbone to silencer sheet windward.
It is used as the further scheme of the present invention：Wind wheel is provided with the spiral case, wind wheel is arranged on the output shaft of motor.
It is used as the further scheme of the present invention：The air outlet side of being connected with of the spiral case is rounded structure.
It is used as the further scheme of the present invention：The bottom of the base is provided with cushion pad.
It is used as the further scheme of the present invention：The base is provided with hanger.
Compared with prior art, the beneficial effects of the invention are as follows：The snail that single air intake centrifugal ventilation blower passes through double-decker
Silencer sheet reduction noise in tongue and inlet box, improves mechanical efficiency, is worth promoting.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is enlarged drawing at Fig. 1 A；
Fig. 3 is top view of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer in Fig. 1-3, the embodiment of the present invention, single air intake centrifugal ventilation blower, including base 1, inlet box 2 and spiral case 3,
The top of base 1 is symmetrically installed with support 4 by screw, and the top of support 4 is provided with spiral case 3, and spiral case 3 is welded on support 4, snail
The inner side of snail tongue 31 of shell 3 is provided with interior snail tongue 32, and disappearing for filled honeycomb shape in cavity, cavity is constituted between interior snail tongue 32 and snail tongue 31
Sound-absorbing layer；Using the double-deck structure of snail tongue 31 and filling noise reduction layer is designed, substantially reduce the noise of blower fan generation；
The front side of spiral case 3 is provided with air inlet, and air inlet connects the outlet of inlet box 2 by flange, the import of inlet box 2 such as with
Several silencer sheets 5, silencer sheet 5 windward end section be in herringbone, the present invention work when, air-flow from inlet box 2 vertically into
Spiral case 3, the direct water conservancy diversion of entrance is prewhirled, it is to avoid conventional windage loss, rational blower fan pre-rotation causes aerodynamic efficiency
Improve, improve mechanical efficiency.
It is above-mentioned, wind wheel is provided with spiral case 3, wind wheel is arranged on the output shaft of motor.
Above-mentioned, the air outlet side of being connected with of spiral case 3 is rounded structure.
Above-mentioned, the bottom of base 1 is provided with cushion pad.
Above-mentioned, base 1 is provided with hanger.
The design feature and its operation principle of the present invention：Motor drives wind wheel to rotate via the air intake of inlet box 2, by air outlet
Air-out.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (5)
1. single air intake centrifugal ventilation blower, including base, inlet box and spiral case, it is characterised in that pass through screw above the base
Symmetrical be installed with above support, support is provided with spiral case, and spiral case is welded on support, and interior snail tongue is provided with the inside of the snail tongue of spiral case, interior
The noise reduction layer of filled honeycomb shape in cavity, cavity is constituted between snail tongue and snail tongue；
The front side of spiral case is provided with air inlet, and air inlet connects the outlet of inlet box by flange, and the import of inlet box is such as with number
Individual silencer sheet, end section is in herringbone to silencer sheet windward.
2. single air intake centrifugal ventilation blower according to claim 1, it is characterised in that wind wheel, wind wheel are provided with the spiral case
On the output shaft of motor.
3. single air intake centrifugal ventilation blower according to claim 1, it is characterised in that the air outlet side of being connected with of the spiral case
It is rounded structure.
4. single air intake centrifugal ventilation blower according to claim 1, it is characterised in that the bottom of the base is provided with buffering
Pad.
5. single air intake centrifugal ventilation blower according to claim 1, it is characterised in that the base is provided with hanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422130.8A CN106989060A (en) | 2017-06-07 | 2017-06-07 | Single air intake centrifugal ventilation blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422130.8A CN106989060A (en) | 2017-06-07 | 2017-06-07 | Single air intake centrifugal ventilation blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106989060A true CN106989060A (en) | 2017-07-28 |
Family
ID=59421607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710422130.8A Pending CN106989060A (en) | 2017-06-07 | 2017-06-07 | Single air intake centrifugal ventilation blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106989060A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798256A (en) * | 2019-01-04 | 2019-05-24 | 东莞市旭恒电子有限公司 | A kind of ventilating fan and its usage mode |
-
2017
- 2017-06-07 CN CN201710422130.8A patent/CN106989060A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798256A (en) * | 2019-01-04 | 2019-05-24 | 东莞市旭恒电子有限公司 | A kind of ventilating fan and its usage mode |
| CN109798256B (en) * | 2019-01-04 | 2024-01-12 | 东莞市旭恒电子有限公司 | Ventilation fan and use mode thereof |
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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: 20170728 |