CN220354066U - Boat type energy-saving fan - Google Patents
Boat type energy-saving fan Download PDFInfo
- Publication number
- CN220354066U CN220354066U CN202320800710.7U CN202320800710U CN220354066U CN 220354066 U CN220354066 U CN 220354066U CN 202320800710 U CN202320800710 U CN 202320800710U CN 220354066 U CN220354066 U CN 220354066U
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- China
- Prior art keywords
- impeller
- diffuser
- motor
- air duct
- hub
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a boat-shaped energy-saving fan which comprises an air duct, an impeller, a rear deflector, a motor and a diffuser, wherein the rear deflector is transversely fixed in the middle of an inner cavity of the air duct, the diffuser is fixedly connected to the right end of the rear deflector, and the diffuser is positioned in the air duct; a motor is transversely arranged on the wall surface of the inner cavity of the rear deflector, an output shaft of the motor faces to the left, an impeller is fixed on the output shaft, the impeller is positioned in the air duct, and the installation angle of twisted blades of the impeller is reduced along with the increase of the blade height; the impeller comprises a hub and twisted blades which are uniformly distributed on the outer peripheral surface of the hub and have a twisted shape, the rear deflector comprises a cylinder, guide vanes which are uniformly distributed on the outer peripheral surface of the cylinder and have an arc shape, and a motor base which is fixed on the wall surface of an inner cavity of the cylinder, the right end of the cylinder is fixedly connected with a diffuser, and a motor is transversely arranged on the motor base. The utility model improves the efficiency of the fan, and the efficiency can reach 70%; and at the same time, the pressure is higher than that of the axial flow fan.
Description
[ field of technology ]
The utility model relates to the technical field of ventilator equipment, in particular to the technical field of boat-shaped energy-saving fans.
[ background Art ]
According to the moving direction of the air flow in the impeller, the ventilator can be divided into an axial flow type ventilator, a centrifugal type ventilator and a mixed flow type ventilator, wherein the axial flow type ventilator has large air quantity and small pressure, the centrifugal type ventilator has small air quantity and large pressure, and the mixed flow type ventilator is arranged between the two. In order to save the cost, the traditional axial flow or mixed flow ventilator generally only comprises impellers in a shell, parts such as front and rear deflectors, diffusers and the like are omitted, the structure is simple, but the generated energy loss is large, so that the efficiency is low, and the axial flow or mixed flow ventilator is only suitable for a low-pressure fan. Meanwhile, for convenient processing, the traditional axial flow or mixed flow ventilator blade is a two-dimensional blade, along with the increase of the height of the blade, the shape change of the blade is smaller, and the working conditions of different blade heights are different, and the wing profile or blade grid with different shapes is adopted, so that the traditional axial flow or mixed flow ventilator has lower efficiency.
[ utility model ]
The utility model aims to solve the problems in the prior art and provides the boat-shaped energy-saving fan, which adopts the conical hub, the twisted blades, the rear deflector, the diffuser and other parts, thereby improving the efficiency of the fan, and the efficiency can reach 70%; and at the same time, the pressure is higher than that of the axial flow fan.
The utility model is in order to meet the requirements of some ventilation occasions on high-air-volume and higher-pressure fans, and meets the national requirements on high efficiency of fan products, so that the boat-shaped energy-saving fan with high air volume, high air pressure and high efficiency is researched, the characteristics of high pressure of a centrifugal fan and high air volume of an axial-flow fan are integrated on the performance, and meanwhile, the efficiency of the fan is further improved by adopting the conical hub, the twisted blades, the rear deflector, the diffuser and other parts. The main principle is that the rotary motion of the impeller is utilized to do work on the gas, so that the gas obtains mechanical energy.
In order to achieve the purpose, the utility model provides a boat-shaped energy-saving fan, which comprises an air duct, an impeller, a rear deflector, a motor and a diffuser, wherein the rear deflector is transversely fixed in the middle of an inner cavity of the air duct, the diffuser is fixedly connected to the right end of the rear deflector, and the diffuser is positioned in the air duct; a motor is transversely arranged on the wall surface of the inner cavity of the rear deflector, an output shaft of the motor faces to the left, an impeller is fixed on the output shaft, the impeller is positioned in the air duct, and the installation angle of twisted blades of the impeller is reduced along with the increase of the blade height;
the impeller comprises a hub and twisted blades which are uniformly distributed on the outer peripheral surface of the hub and have a twisted shape, the rear deflector comprises a cylinder, guide vanes which are uniformly distributed on the outer peripheral surface of the cylinder and have an arc shape, and a motor seat which is fixed on the wall surface of an inner cavity of the cylinder, the right end of the cylinder is fixedly connected with a diffuser, and a motor is transversely arranged on the motor seat; the hub and the diffuser are both conical, the hub is small in left and right, the opening is right, and the diffuser is large in left and small.
Preferably, the air duct is a round hollow structural member, an L-shaped bracket is arranged on the bottom surface of the air duct, and the air duct is fixed through the L-shaped bracket; the motor seat is welded on the wall surface below the inner cavity of the air duct, a motor is transversely fixed on the motor seat through bolts, and the center line of an output shaft of the motor coincides with the center line of the air duct.
Preferably, the included angle between the generatrix of the hub of the impeller and the horizontal line is 25 degrees.
Preferably, the outer diameter of the right end of the hub of the impeller is equal to the outer diameter of the cylinder of the rear deflector.
Preferably, the included angle between the tangent line of the front edge point of the guide vane of the rear guide vane and the horizontal line is 38 degrees, and the included angle between the tangent line of the rear edge point of the guide vane and the horizontal line is 0 degree.
Preferably, the included angle between the bus of the diffuser and the horizontal line is 18 degrees.
The utility model has the beneficial effects that:
1. the impeller blades have different inlet and outlet angles according to the working conditions of different blade heights, so that the gas flow rule is met, and the gas flow loss is reduced;
2. the impeller hub is conical, so that the gas has a radial speed and the gas pressure can be improved;
3. the rear deflector and the diffuser are added, so that the loss caused by the gas rotation motion is reduced, the gas dynamic pressure is further converted into static pressure, and the fan efficiency is improved.
The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a front view of a structure of a boat-shaped energy-saving fan according to the present utility model;
FIG. 2 is a front and side view of the impeller of the boat-shaped energy-saving fan of the present utility model;
fig. 3 is a perspective view of the rear deflector and diffuser of the boat-shaped energy-saving fan of the present utility model.
In the figure: 101-wind cylinder, 102-impeller, 103-rear deflector, 104-motor, 105-diffuser, 201-twisted blade, 202-hub, 301-cylinder, 302-deflector and 303-motor base. The twisted blades have different shapes and inlet and outlet angles at different blade heights; the hub is conical, and the included angle between the bus and the horizontal line is 25 degrees. The deflector sheet of the deflector is arc-shaped; the diffuser is conical, and the included angle between the bus and the horizontal line is 18 degrees.
[ detailed description ] of the utility model
Referring to fig. 1, 2 and 3, the utility model comprises an air duct 101, an impeller 102, a rear deflector 103, a motor 104 and a diffuser 105, wherein the rear deflector 103 is transversely fixed in the middle of the inner cavity of the air duct 101, the diffuser 105 is fixedly connected to the right end of the rear deflector 103, and the diffuser 105 is positioned in the air duct 101; a motor 104 is transversely arranged on the wall surface of the inner cavity of the rear deflector 103, an output shaft of the motor 104 faces to the left, an impeller 102 is fixed on the output shaft, and the impeller 102 is positioned in the air duct 101;
the impeller 102 comprises a hub 202 and twisted blades 201 which are uniformly distributed on the outer peripheral surface of the hub 202 and have a twisted shape, the rear deflector 103 comprises a cylinder 301, guide plates 302 which are uniformly distributed on the outer peripheral surface of the cylinder 301 and have a circular arc shape, and a motor base 303 which is fixed on the wall surface of the inner cavity of the cylinder 301, the right end of the cylinder 301 is fixedly connected with a diffuser 105, and a motor 104 is transversely arranged on the motor base 303; the hub 202 and the diffuser 105 are tapered, and the hub 202 is a tapered hollow shell with a small left side and a large right side and a right opening, and the diffuser 105 is a tapered hollow structural member with a large left side and a small right side.
The working process of the utility model comprises the following steps:
the boat-shaped energy-saving fan is described with reference to the accompanying drawings in the working process.
The boat-shaped energy-saving fan provided by the application is of a novel fan structure, and can be manufactured according to the structural requirements of the utility model content of the application, so that the fan with the efficiency of up to 70% can be obtained. The fan is the same as the existing fan in use, the fan is externally connected with a power supply, the motor 104 rotates to drive the impeller 102 to rotate, blades of the impeller 102 have different inlet and outlet angles according to working conditions of different blade heights, and gas flows out from the tail end after entering the rear deflector 103 and the diffuser 105. The hub of the impeller 102 is tapered to provide a radial velocity to the gas and to increase the gas pressure; the rear deflector 103 and the diffuser 105 can reduce the loss caused by the rotation motion of the gas, further convert the dynamic pressure of the gas into static pressure, and improve the efficiency of the fan.
The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.
Claims (6)
1. The energy-conserving fan of ship shape, its characterized in that: the air dryer comprises an air dryer (101), an impeller (102), a rear deflector (103), a motor (104) and a diffuser (105), wherein the rear deflector (103) is transversely fixed in the middle of an inner cavity of the air dryer (101), the diffuser (105) is fixedly connected to the right end of the rear deflector (103), and the diffuser (105) is positioned in the air dryer (101); a motor (104) is transversely arranged on the inner cavity wall surface of the rear deflector (103), an output shaft of the motor (104) faces to the left, an impeller (102) is fixed on the output shaft, the impeller (102) is positioned in the air duct (101), and the installation angle of a twisted blade (201) of the impeller (102) is reduced along with the increase of the blade height;
the impeller (102) comprises a hub (202) and twisted blades (201) which are uniformly distributed on the outer peripheral surface of the hub (202) and have a twisted shape, the rear deflector (103) comprises a cylinder (301), guide vanes (302) which are uniformly distributed on the outer peripheral surface of the cylinder (301) and have a circular arc shape, and a motor base (303) which is fixed on the wall surface of the inner cavity of the cylinder (301), the right end of the cylinder (301) is fixedly connected with a diffuser (105), and a motor (104) is transversely arranged on the motor base (303); the hub (202) and the diffuser (105) are both conical, the hub (202) is a conical hollow shell with a small left and a large right and a right opening, and the diffuser (105) is a conical hollow structural member with a large left and a small left.
2. The boat-shaped energy-saving fan as set forth in claim 1, wherein: the air duct (101) is a round hollow structural member, an L-shaped bracket is arranged on the bottom surface of the air duct (101), and the air duct (101) is fixed through the L-shaped bracket; the motor base (303) is welded on the wall surface below the inner cavity of the air duct (101), the motor (104) is transversely fixed on the motor base (303) through bolts, and the center line of an output shaft of the motor (104) coincides with the center line of the air duct (101).
3. The boat-shaped energy-saving fan as set forth in claim 1, wherein: the included angle between the generatrix of the hub (202) of the impeller (102) and the horizontal line is 25 degrees.
4. The boat-shaped energy-saving fan as set forth in claim 1, wherein: the outer diameter of the right end of the hub (202) of the impeller (102) is equal to the outer diameter of the cylinder (301) of the rear deflector (103).
5. The boat-shaped energy-saving fan as set forth in claim 1, wherein: the included angle between the tangent line of the front edge point of the guide vane (302) of the rear guide vane (103) and the horizontal line is 38 degrees, and the included angle between the tangent line of the rear edge point of the guide vane (302) and the horizontal line is 0 degrees.
6. The boat-shaped energy-saving fan as set forth in claim 1, wherein: the included angle between the bus of the diffuser (105) and the horizontal line is 18 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320800710.7U CN220354066U (en) | 2023-04-12 | 2023-04-12 | Boat type energy-saving fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320800710.7U CN220354066U (en) | 2023-04-12 | 2023-04-12 | Boat type energy-saving fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220354066U true CN220354066U (en) | 2024-01-16 |
Family
ID=89505568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320800710.7U Active CN220354066U (en) | 2023-04-12 | 2023-04-12 | Boat type energy-saving fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220354066U (en) |
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2023
- 2023-04-12 CN CN202320800710.7U patent/CN220354066U/en active Active
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