CN216894955U - Environment-friendly purifies with energy-saving middling pressure centrifugal fan - Google Patents
Environment-friendly purifies with energy-saving middling pressure centrifugal fan Download PDFInfo
- Publication number
- CN216894955U CN216894955U CN202122592336.XU CN202122592336U CN216894955U CN 216894955 U CN216894955 U CN 216894955U CN 202122592336 U CN202122592336 U CN 202122592336U CN 216894955 U CN216894955 U CN 216894955U
- Authority
- CN
- China
- Prior art keywords
- volute
- energy
- impeller
- centrifugal fan
- current collector
- 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.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an energy-saving medium-pressure centrifugal fan for environmental protection and purification, which comprises a current collector, an impeller, a shaft sleeve, a volute, a pedestal and a motor, wherein the pedestal is fixed on the right side of the volute; the middle of the left side face of the impeller is provided with a flanging, the middle of the right side face of the current collector is provided with a circular drainage plate, the inner cavity of the current collector is of a conical arc structure with two large ends and a small middle, and the flanging on the left side of the impeller is sleeved on the circular drainage plate on the right side of the current collector. The utility model meets the requirements of high resistance and large air quantity of the environment-friendly purification system, and has higher efficiency, thereby achieving the effect of saving more energy.
Description
[ technical field ] A
The utility model relates to the technical field of ventilator equipment, in particular to the technical field of an energy-saving medium-pressure centrifugal fan for environmental protection and purification.
[ background ] A method for producing a semiconductor device
The centrifugal fan is used as a gas conveying device and is widely applied to environment-friendly purification systems for oil mist purification, waste gas treatment, smoke dust treatment and the like. These systems usually require high air volume and pressure in operation, while low pressure fans, such as 4-72, 4-79, have large air volume and insufficient pressure, and high pressure fans are the opposite, so when in use, medium pressure fans are usually considered. At present, the efficiency of a plurality of series of medium-pressure centrifugal fans is generally below 85 percent, and further space is provided for improvement. Based on this, a medium-pressure energy-saving centrifugal fan is needed to solve the above problems.
[ Utility model ] content
The utility model aims to solve the problems in the prior art, and provides an energy-saving medium-pressure centrifugal fan for environment-friendly purification, which has higher efficiency while meeting the requirements of high resistance and large air volume of an environment-friendly purification system, thereby achieving the effect of saving more energy.
In order to achieve the purpose, the utility model provides an energy-saving medium-pressure centrifugal fan for environmental protection and purification, which comprises a current collector, an impeller, a shaft sleeve, a volute, a pedestal and a motor, wherein the pedestal is fixed on the right side of the volute; the impeller is characterized in that a flanging is arranged in the middle of the left side face of the impeller, a circular drainage plate is arranged in the middle of the right side face of the current collector, an inner cavity of the current collector is of a conical arc structure with two large ends and a small middle, and the flanging on the left side of the impeller is sleeved on the circular drainage plate on the right side of the current collector.
Preferably, the inner cavity of the current collector consists of a conical section and an arc section, the included angle between the generatrix of the conical section and the horizontal line is less than 20 degrees, and the included angle between the tangent of the outlet of the arc section and the horizontal line is less than 40 degrees.
Preferably, the left side of the current collector is provided with an air inlet flange, and the air inlet flange is externally connected with a pipeline.
Preferably, the impeller comprises a front disc, blades and a rear disc, the blades are curved plates, the blades are obliquely and fixedly arranged between the front disc and the rear disc, a plurality of circular through holes are formed in the rear disc, and a shaft sleeve is fixed on the rear disc through the circular through holes.
Preferably, the front disc is of an arc shape, and the front disc consists of two tangent arcs and a straight line; the blades are in a backward inclined arc plate type, the inlet angle of each blade is 25 degrees, the outlet angle of each blade is 51 degrees, and the number of the blades is 12.
Preferably, the volute comprises 2 side plates, coamings connected between the side plates and reinforcing ribs between the side plates and the coamings, and the volute is of a snail-shaped hollow shell structure.
Preferably, the side plate of the volute is made by adopting a inequilateral base method.
Preferably, the left side of the pedestal is welded with the volute into a whole.
The utility model has the beneficial effects that:
1. the current collector adopts a conical arc shape, and the geometric shapes of the conical section and the arc section are elaborately designed, so that the phenomenon of overlarge gas pressure gradient, the phenomenon of boundary layer separation, air inlet resistance and fan efficiency are reduced;
2. the impeller adopts an arc-shaped front disc, so that the energy conversion efficiency between the impeller and gas is improved;
3. the impeller adopts backward inclined arc-shaped blades, has moderate length and larger width, and can ensure that gas obtains higher pressure energy while having large air volume;
4. the pedestal and the volute are welded into a whole, so that the vibration and the noise of the fan can be reduced.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is an exploded view of a fan of an energy-saving medium-pressure centrifugal fan for environmental protection and purification according to the present invention;
FIG. 2 is a schematic perspective view of a current collector of an energy-saving medium-pressure centrifugal fan for environmental protection and purification according to the present invention;
FIG. 3 is a schematic structural diagram of a current collector of an energy-saving medium-pressure centrifugal fan for environmental protection and purification according to the present invention;
FIG. 4 is a schematic perspective view of an impeller of an energy-saving medium-pressure centrifugal fan for environmental protection and purification according to the present invention;
fig. 5 is a schematic front view of an impeller of the energy-saving medium-pressure centrifugal fan for environmental protection and purification according to the present invention.
In the figure: 101-current collector, 102-impeller, 103-shaft sleeve, 104-volute, 105-pedestal, 106-motor, 201-air inlet flange, 202-conical section, 203-arc section, 301-front disk, 302-blade, 303-rear disk.
[ detailed description ] embodiments
Referring to fig. 1, 2, 3, 4 and 5, the present invention includes a current collector 101, an impeller 102, a shaft sleeve 103, a volute 104, a pedestal 105 and a motor 106, wherein the pedestal 105 is fixed on the right side of the volute 104, the motor 106 is fixed above the pedestal 105, an output shaft of the motor 106 penetrates into the volute 104 and then is matched with the shaft sleeve 103, the impeller 102 is fixed on the left side surface of the shaft sleeve 103, the current collector 101 is matched on the left side of the impeller 102, the impeller 102 is arranged inside the volute 104, and the right side of the current collector 101 is fixed on the left side surface of the volute 104; the middle of the left side face of the impeller 102 is provided with a flanging, the middle of the right side face of the current collector 101 is provided with a circular flow guide plate, the inner cavity of the current collector 101 is of a conical arc structure with two large ends and a small middle, and the flanging on the left side of the impeller 102 is sleeved on the circular flow guide plate on the right side of the current collector 101.
Specifically, the inner cavity of the collector 101 is composed of a conical section 202 and an arc section 203, an included angle between a generatrix of the conical section 202 and a horizontal line is less than 20 degrees, and an included angle between a tangent of an outlet of the arc section 203 and the horizontal line is less than 40 degrees.
Specifically, an air inlet flange 201 is arranged on the left side of the collector 101, and the air inlet flange 201 is externally connected with a pipeline.
Specifically, the impeller 102 includes a front disc 301, blades 302 and a rear disc 303, the blades 302 are curved plates, the blades 302 are obliquely and fixedly arranged between the front disc 301 and the rear disc 303, the rear disc 303 is provided with a plurality of circular through holes, and the rear disc 303 is fixed with a shaft sleeve 103 through the circular through holes; the front disc 301 is arc-shaped, and the front disc 301 consists of two tangent arcs and a straight line; the blades 302 are in a retroverted arc plate type, the inlet angle of the blades 302 is 25 degrees, the outlet angle of the blades 302 is 51 degrees, and the number of the blades 302 is 12.
Specifically, the volute 104 comprises 2 side plates, coamings connected between the side plates, and reinforcing ribs between the side plates and the coamings, and the volute 104 is of a snail-shaped hollow shell structure; the side plates of the volute 104 are made by a scalene base method.
Specifically, the left side of the pedestal 105 is welded to the volute 104.
The working process of the utility model is as follows:
the utility model relates to an energy-saving medium-pressure centrifugal fan for environmental protection and purification, which is explained in the working process by combining with the attached drawing.
The motor 106 rotates the impeller 102, so that gas is introduced from the collector 101; the conical section 202 of the inner cavity of the collector 101 enables gas to enter more easily and to accelerate more easily through the arc section 203; high velocity gas is delivered from the volute 104 outlet by the impeller 102.
Tests prove that the fan has the optimum working condition point efficiency of 85.6 percent, which is higher than that of most medium-pressure centrifugal fans with the same machine number.
In order to adapt to the characteristics of high resistance and large required air volume of a gas treatment system in the industries of power generation, metallurgy, petrifaction, coating, building materials and the like, the centrifugal fan for environment-friendly purification, which is high in efficiency, large in air volume, high in air pressure and low in noise, is researched, the characteristics of high pressure coefficient of a high-pressure fan and high flow of medium and low-pressure fans are integrated in performance, and meanwhile, the centrifugal fan is higher in efficiency and is more energy-saving compared with a traditional fan. The present example includes the components of a volute, a collector, an impeller, a pedestal, a motor, a shaft sleeve and other accessories. The main principle is that the centrifugal motion of the impeller is utilized to convert the mechanical energy of the impeller into the mechanical energy of gas.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (8)
1. The utility model provides an environmental protection purifies uses energy-saving middling pressure centrifugal fan which characterized in that: the device comprises a current collector (101), an impeller (102), a shaft sleeve (103), a volute (104), a pedestal (105) and a motor (106), wherein the pedestal (105) is fixed on the right side of the volute (104), the motor (106) is fixed above the pedestal (105), an output shaft of the motor (106) penetrates into the volute (104) and then is matched with the shaft sleeve (103), the impeller (102) is fixed on the left side surface of the shaft sleeve (103), the current collector (101) is matched on the left side of the impeller (102), the impeller (102) is arranged in the volute (104), and the right side of the current collector (101) is fixed on the left side surface of the volute (104); the middle of the left side face of the impeller (102) is provided with a flanging, the middle of the right side face of the current collector (101) is provided with a circular drainage plate, an inner cavity of the current collector (101) is of a conical arc structure with two large ends and a small middle, and the flanging on the left side of the impeller (102) is sleeved on the circular drainage plate on the right side of the current collector (101).
2. The energy-saving medium-pressure centrifugal fan for environmental protection and purification as claimed in claim 1, wherein: the inner cavity of the collector (101) is composed of a conical section (202) and an arc section (203), an included angle between a bus of the conical section (202) and a horizontal line is less than 20 degrees, and an included angle between a tangent of an outlet of the arc section (203) and the horizontal line is less than 40 degrees.
3. The energy-saving medium-pressure centrifugal fan for environmental protection and purification as claimed in claim 1, wherein: an air inlet flange (201) is arranged on the left side of the collector (101), and the air inlet flange (201) is externally connected with a pipeline.
4. The energy-saving medium-pressure centrifugal fan for environmental protection and purification as claimed in claim 1, wherein: impeller (102) include front disc (301), blade (302) and back dish (303), and blade (302) are the curved plate, and blade (302) slope sets firmly between front disc (301) and back dish (303), and last the opening of back dish (303) has a plurality of circular through-holes, and back dish (303) are fixed with axle sleeve (103) through circular through-hole.
5. The energy-saving medium-pressure centrifugal fan for environmental protection and purification as claimed in claim 4, wherein: the front disc (301) is arc-shaped, and the front disc (301) consists of two tangent arcs and a straight line; the blades (302) are backward inclined arc plate type, the inlet angle of the blades (302) is 25 degrees, the outlet angle of the blades (302) is 51 degrees, and the number of the blades (302) is 12.
6. The energy-saving medium-pressure centrifugal fan for environmental protection and purification as claimed in claim 1, wherein: the volute (104) comprises 2 side plates, coamings connected between the side plates and reinforcing ribs between the side plates and the coamings, and the volute (104) is of a snail-shaped hollow shell structure.
7. The energy-saving medium-pressure centrifugal fan for environmental protection and purification as claimed in claim 6, wherein: the side plates of the volute (104) are made by adopting a scalene base method.
8. The energy-saving medium-pressure centrifugal fan for environmental protection and purification as claimed in claim 1, wherein: the left side of the pedestal (105) is welded with the volute (104) into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122592336.XU CN216894955U (en) | 2021-10-27 | 2021-10-27 | Environment-friendly purifies with energy-saving middling pressure centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122592336.XU CN216894955U (en) | 2021-10-27 | 2021-10-27 | Environment-friendly purifies with energy-saving middling pressure centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216894955U true CN216894955U (en) | 2022-07-05 |
Family
ID=82194611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122592336.XU Active CN216894955U (en) | 2021-10-27 | 2021-10-27 | Environment-friendly purifies with energy-saving middling pressure centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216894955U (en) |
-
2021
- 2021-10-27 CN CN202122592336.XU patent/CN216894955U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2906398Y (en) | Double-side air-sucking type blower fan volute structure of European-type range hood | |
| CN202937480U (en) | Multistage impeller centrifugal blower | |
| CN100371645C (en) | Fan volute structure with air inlets on double sides for European-style smoke exhaust ventilator | |
| CN216894955U (en) | Environment-friendly purifies with energy-saving middling pressure centrifugal fan | |
| CN109595197B (en) | Fan | |
| CN109519397B (en) | Centrifugal compressor and design method thereof | |
| CN209180085U (en) | A kind of flow-guiding type air intake centrifugal blower | |
| CN109611346B (en) | Centrifugal compressor and design method thereof | |
| CN205207273U (en) | Dual -air -inlet centrifugal fan | |
| CN215860836U (en) | High-efficiency energy-saving centrifugal blower | |
| CN2769561Y (en) | Single-stage high-speed centrifugal compressor | |
| CN211449096U (en) | Noise-reduction centrifugal fan | |
| CN204677459U (en) | For the mesohigh centrifugal blower of high-pressure delivery material | |
| CN211715409U (en) | Structure of volute wind wheel air duct system | |
| CN211039145U (en) | High-efficient low noise does not have spiral case fan wheel | |
| CN212155257U (en) | Double-layer fan blade and fan | |
| CN101684772A (en) | Wind-powered machine rotor with venturi tube effect | |
| CN2038958U (en) | Axial flow type electric fan | |
| CN111140543A (en) | Design method and structure of volute wind wheel air duct system | |
| CN201513360U (en) | Cooling fan of locomotive filter reactor | |
| CN216407213U (en) | Energy-saving noise-reducing centrifugal compressor | |
| CN201212404Y (en) | Impeller wheel of steam turbine | |
| CN212272608U (en) | Turbine type air compressor suitable for fuel cell system | |
| CN1737379A (en) | Helical centrifugal impeller with turbofan bucket and application method of the impeller in fluid transportation | |
| CN211737497U (en) | Explosion-proof low noise axial fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |