CN114893439A - Environment-friendly purification device and fan - Google Patents
Environment-friendly purification device and fan Download PDFInfo
- Publication number
- CN114893439A CN114893439A CN202210582730.1A CN202210582730A CN114893439A CN 114893439 A CN114893439 A CN 114893439A CN 202210582730 A CN202210582730 A CN 202210582730A CN 114893439 A CN114893439 A CN 114893439A
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- Prior art keywords
- arc
- fan
- impeller
- shaped body
- protruding part
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- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an environment-friendly purification device and a fan, which comprise a filter assembly, a fan and a treatment box, wherein the fan comprises an impeller and a shell, the impeller comprises a front cover plate (1), a rear cover plate (2), main blades (3) and splitter blades (4), and the environment-friendly purification device is characterized in that: the main blade comprises a first arc-shaped body part (31) and a first protruding part (32), the first protruding part is arranged on the pressure surface side of the main blade, the splitter blade comprises a second arc-shaped body part (41) and a second protruding part (42), the second protruding part is arranged on the negative pressure surface side of the splitter blade, and the second protruding part is located on the radial outer side of the first protruding part. The invention can change the pressure distribution in the impeller flow passage, reduce the pressure loss and improve the wind pressure of the fan while homogenizing the pressure distribution, thereby improving the output pressure of the fan.
Description
Technical Field
The invention relates to the technical field of environment-friendly devices and purification devices, in particular to an environment-friendly purification device, a fan and a fan.
Background
As shown in fig. 1, an environmental protection purifier and fan, it includes filtering component, the fan, handle the case, be provided with filtering component in the case of handling, the fan includes the impeller, the casing, the impeller is installed in the casing and is rotatory under the drive of motor, the impeller includes front shroud 1, back shroud 2, main blade 3, splitter vane 4, a plurality of main blade 3, splitter vane 4 connect between front shroud 1 and back shroud 2 and along circumference distribution, main blade 3 sets up with splitter vane 4 along circumference in turn. It can homogenize pressure distribution and reduce noise. However, the existing impeller structure has the problems of pressure loss and low wind pressure drop when pressure distribution is homogenized.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an environment-friendly purification device and a fan.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an environmental protection purifier and fan, it includes filtering component, the fan, handle the case, it is provided with filtering component, the fan to handle the incasement, the fan includes impeller, a housing, impeller installation is rotatory in the casing and under the drive of motor, the impeller includes front shroud (1), back shroud (2), main blade (3), splitter blade (4), a plurality of main blade, splitter blade connect between front shroud and back shroud and along circumference distribution, main blade sets up its characterized in that along circumference in turn with splitter blade: the main blade (3) comprises a first arc-shaped body part (31) and a first protruding part (32), the first protruding part is arranged on the pressure surface side of the main blade, the splitter blade (4) comprises a second arc-shaped body part (41) and a second protruding part (42), the second protruding part is arranged on the negative pressure surface side of the splitter blade, and the second protruding part is located on the radial outer side of the first protruding part.
Further, the first protrusion (32) comprises a first arc-shaped surface (33) and a first connection surface (34), the first arc-shaped surface is arranged in a manner of being substantially tangent to the first arc-shaped body, the first connection surface is a straight surface or an arc-shaped surface, and a chord of the straight surface, which is perpendicular to the first arc-shaped body (31) or the arc-shaped surface, is perpendicular to the first arc-shaped body; the second convex part (42) is an arc convex part.
Further, the impeller has an outer radius R, the splitter vane (4) has an outer radius R1, the splitter vane has an inner radius R2, and R1 ═ (0.85-0.95) R, and R2 ═ (0.55-0.7) R.
Further, the second boss (42) is disposed at an outer radius R1, and the first connection face (34) of the first boss (32) is disposed at substantially an inner radius R2.
Further, the maximum circumferential thickness of the first protruding portion (32) is 1.5-3 times of the thickness of the first arc-shaped body portion (31), and the maximum circumferential thickness of the second protruding portion (42) is 1.5-2.5 times of the thickness of the second arc-shaped body portion (41).
Further, a hub portion (21) is arranged on the radial inner side of the rear cover plate (2), a hub arc-shaped surface (22) is arranged on the impeller inner side of the hub portion, the main blade (3) is provided with a front edge (35), and the radial inner end of the front edge is approximately connected to the middle position of the hub arc-shaped surface.
According to the environment-friendly purification device and the fan, when the fan operates, the first bulge part and the second bulge part are arranged (the first bulge part is matched with the second bulge part), so that the pressure distribution in an impeller flow channel can be changed, the pressure loss can be reduced, the wind pressure of the fan can be improved while the pressure distribution is homogenized by the impeller structure, and the output pressure of the fan can be improved.
Drawings
FIG. 1 is a prior art impeller structure;
FIG. 2 is a front view of the impeller structure of the present invention;
FIG. 3 is a top view of the impeller structure of the present invention;
fig. 4 is a partially enlarged structural view of the impeller of the present invention.
In the figure: the front shroud 1, the rear shroud 2, the main blade 3, the splitter blade 4, the hub 21, the hub arc surface 22, the first arc body 31, the first protrusion 32, the first arc surface 33, the first connection surface 34, the front edge 35, the second arc body 41, the second protrusion 42, and the rotation direction Rv.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 2-4, an environmental protection purifier and fan, it includes filtering component, the fan, handle the case, it is provided with filtering component, the fan is provided with the impeller, the casing, the impeller is installed in the casing and is rotatory under the drive of motor, the impeller includes front shroud 1, back shroud 2, main blade 3, splitter blade 4, a plurality of main blade 3, splitter blade 4 connect between front shroud 1 and back shroud 2 and along circumference distribution, main blade 3 sets up its characterized in that along circumference in turn with splitter blade 4: the main blade 3 includes a first arc-shaped body portion 31 and a first protrusion portion 32, the first protrusion portion 32 is disposed on the pressure surface side of the main blade 3, the splitter blade 4 includes a second arc-shaped body portion 41 and a second protrusion portion 42, the second protrusion portion 42 is disposed on the negative pressure surface side of the splitter blade 4, and the second protrusion portion 42 is located radially outside the first protrusion portion 32.
When the fan of the invention operates, the first bulge part 32 and the second bulge part 42 are arranged, so that the pressure distribution in the flow channel of the impeller can be changed, and the impeller structure can reduce pressure loss and improve the wind pressure of the fan while homogenizing the pressure distribution, thereby improving the output pressure of the fan.
Further, the first protrusion 32 includes a first arc surface 33, a first connection surface 34, the first arc surface 33 is substantially tangent to the first arc body 31, and the first connection surface 34 is a straight surface or an arc surface, and a chord of the straight surface perpendicular to the first arc body 31 or the arc surface is perpendicular to the first arc body 31. The second boss 42 is an arc-shaped boss.
The impeller (front shroud 1, back shroud 2) has an outer radius R, the splitter vane 4 has an outer radius R1, the splitter vane 4 has an inner radius R2, and R1 ═ 0.85-0.95R, and R2 ═ 0.55-0.65R.
The second boss 42 is disposed at an outer radius R1 and the first connection face 34 of the first boss 32 is disposed at a substantially inner radius R2. The maximum circumferential thickness of the first projecting portion 32 is 1.5 to 3 times the thickness of the first arc-shaped body portion 31, and the maximum circumferential thickness of the second projecting portion 42 is 1.5 to 2.5 times the thickness of the second arc-shaped body portion 41.
According to the environment-friendly purification device and the fan, the impeller of the environment-friendly purification device is matched with the second bulge part 42 through the design of the first bulge part 32, so that the pressure loss can be further reduced, the wind pressure of the fan can be further improved, and the output pressure of the fan can be further improved.
The radial inner side of the rear cover plate 2 is provided with a hub part 21, the impeller inner side of the hub part 21 is provided with a hub arc surface 22, the main blade 3 is provided with a leading edge 35, and the radial inner end of the leading edge 35 is approximately connected to the middle position of the hub arc surface 22.
According to the environment-friendly purification device and the fan, when the fan operates, the first bulge part and the second bulge part are arranged (the first bulge part 32 is matched with the second bulge part 42), so that the pressure distribution in an impeller flow channel can be changed, the pressure loss can be reduced, the wind pressure of the fan can be improved while the pressure distribution is homogenized by the impeller structure, and the output pressure of the fan can be improved.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (6)
1. The utility model provides an environmental protection purifier and fan, it includes filtering component, the fan, handle the case, it is provided with filtering component, the fan to handle the incasement, the fan includes impeller, a housing, impeller installation is rotatory in the casing and under the drive of motor, the impeller includes front shroud (1), back shroud (2), main blade (3), splitter blade (4), a plurality of main blade, splitter blade connect between front shroud and back shroud and along circumference distribution, main blade sets up its characterized in that along circumference in turn with splitter blade: the main blade (3) comprises a first arc-shaped body part (31) and a first protruding part (32), the first protruding part is arranged on the pressure surface side of the main blade, the splitter blade (4) comprises a second arc-shaped body part (41) and a second protruding part (42), the second protruding part is arranged on the negative pressure surface side of the splitter blade, and the second protruding part is located on the radial outer side of the first protruding part.
2. The environmental protection purification apparatus and blower according to claim 1, wherein the first protrusion (32) comprises a first arc-shaped surface (33) and a first connection surface (34), the first arc-shaped surface is substantially tangent to the first arc-shaped body, the first connection surface is a straight surface or an arc-shaped surface, the straight surface is perpendicular to the first arc-shaped body (31) or a chord of the arc-shaped surface is perpendicular to the first arc-shaped body; the second convex part (42) is an arc convex part.
3. The environmental protection purification apparatus and fan according to claim 2, wherein the impeller has an outer radius R, the splitter vane (4) has an outer radius R1, the splitter vane has an inner radius R2, and R1 ═ R (0.85-0.95), and R2 ═ R (0.55-0.7).
4. The environmental protection purification apparatus and blower of claim 3, wherein the second protrusion (42) is disposed at an outer radius R1, and the first connection surface (34) of the first protrusion (32) is disposed at a substantially inner radius R2.
5. The environmental protection purification device and the fan as claimed in claim 4, wherein the maximum circumferential thickness of the first protrusion part (32) is 1.5-3 times of the thickness of the first arc-shaped body part (31), and the maximum circumferential thickness of the second protrusion part (42) is 1.5-2.5 times of the thickness of the second arc-shaped body part (41).
6. The environmental protection purification device and the fan as claimed in claim 5, wherein the radial inner side of the back cover plate (2) is provided with a hub portion (21), the impeller inner side of the hub portion is provided with a hub arc surface (22), the main blade (3) is provided with a front edge (35), and the radial inner end of the front edge is connected to the middle position of the hub arc surface approximately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210582730.1A CN114893439A (en) | 2022-05-26 | 2022-05-26 | Environment-friendly purification device and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210582730.1A CN114893439A (en) | 2022-05-26 | 2022-05-26 | Environment-friendly purification device and fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114893439A true CN114893439A (en) | 2022-08-12 |
Family
ID=82726980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210582730.1A Pending CN114893439A (en) | 2022-05-26 | 2022-05-26 | Environment-friendly purification device and fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114893439A (en) |
-
2022
- 2022-05-26 CN CN202210582730.1A patent/CN114893439A/en active Pending
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