CN110685938A - Meridian acceleration centrifugal fan impeller of high-temperature industrial furnace - Google Patents
Meridian acceleration centrifugal fan impeller of high-temperature industrial furnace Download PDFInfo
- Publication number
- CN110685938A CN110685938A CN201910955001.4A CN201910955001A CN110685938A CN 110685938 A CN110685938 A CN 110685938A CN 201910955001 A CN201910955001 A CN 201910955001A CN 110685938 A CN110685938 A CN 110685938A
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- China
- Prior art keywords
- conical wheel
- disc
- centrifugal fan
- fan impeller
- wheel disc
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- 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.)
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Classifications
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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
- 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
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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
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
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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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- 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
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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 a meridian acceleration centrifugal fan impeller of a high-temperature industrial furnace, which relates to the field of centrifugal fans and comprises blades, rivets, a bottom plate, a shaft disc, a conical wheel disc and a conical wheel cover, wherein the center of the upper surface of the bottom plate is rotatably connected with the shaft disc, and the shaft disc penetrates through a through hole formed in the center of the conical wheel disc and is riveted with the conical wheel disc through a plurality of rivets; the upper surface fixed connection of toper rim plate is a plurality of blades that are even circumference around the reel, and the upper surface fixed connection of bottom plate has the toper wheel cap, this device makes middle blade and runner section present the gradually reduced structural style through toper rim plate and toper wheel cap, ensures that the air current is effectually accelerated when the runner, thereby can effectively improve the air current from the dynamic pressure when the toper wheel cap is discharged, more can improve the penetrating power of air current, in order to reach the temperature gradient that reduces in the stove, improve the purpose of heating effect.
Description
Technical Field
The invention relates to the field of centrifugal fans, in particular to a meridian acceleration centrifugal fan impeller of a high-temperature industrial furnace.
Background
The centrifugal fan accelerates gas by using an impeller rotating at a high speed according to the principle that kinetic energy is converted into potential energy, and then decelerates and changes the flow direction so as to convert the kinetic energy into the potential energy (pressure). In a single stage centrifugal fan, the gas enters the impeller from an axial direction, changes to a radial direction as it flows through the impeller, and then enters the diffuser. In diffusers, the gas changes flow direction and the increase in conduit cross-sectional area slows the gas flow, which converts kinetic energy into pressure energy.
At present, in the domestic high-temperature industrial furnace kiln industry, the commonly used heat circulating fans are as follows: the centrifugal heat circulation fan and the axial flow heat circulation fan.
In the furnace kiln using the centrifugal heat circulation fan, because the furnace kiln is longer, the penetration force of the heat circulation fan is generally insufficient; the temperature gradient in the furnace is large; the phenomenon of uneven heating always troubles the industry of high-temperature industrial furnaces and kilns.
The traditional high-temperature industrial furnace generally adopts a high-specific-speed centrifugal fan with backward blades, and the fan has the characteristics of medium pressure, large flow and high efficiency at normal temperature, but the pressure is rapidly reduced in the high-temperature environment in the furnace, the penetrating power is reduced, and the fan cannot play a good role in the field of the high-temperature industrial furnace.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems in the prior art, the invention aims to provide a meridian acceleration centrifugal fan impeller of a high-temperature industrial furnace, wherein when the impeller is used, the conical wheel disc and the conical wheel cover enable the cross section of a middle blade and a flow channel to be in a gradually reduced structural form, so that the air flow is effectively accelerated when passing through the flow channel, the dynamic pressure of the air flow when the air flow is discharged from the conical wheel cover can be effectively improved, the penetrating power of the air flow can be further improved, the purposes of reducing the temperature gradient in the furnace and improving the heating effect are achieved, and the problems in the background stories are solved.
2. Technical scheme
In order to achieve the purpose, the invention provides the following technical scheme:
a meridian acceleration centrifugal fan impeller of a high-temperature industrial furnace comprises blades, rivets, a bottom plate, a shaft disc, a conical wheel disc and a conical wheel cover, wherein the center of the upper surface of the bottom plate is rotatably connected with the shaft disc, and the shaft disc penetrates through a through hole formed in the center of the conical wheel disc and is riveted with the conical wheel disc through a plurality of rivets; the upper surface of the conical wheel disc is fixedly connected with a plurality of blades which are uniformly and circumferentially arranged around the shaft disc, and the upper surface of the bottom plate is fixedly connected with a conical wheel cover.
As a further scheme of the invention: the conical wheel disc is obliquely and retractably arranged towards the shaft disc.
As a further scheme of the invention: the opening of the upper end of the cone-shaped wheel cover is smaller than the opening of the lower end of the cone-shaped wheel cover.
As a further scheme of the invention: the blades are solid plate type backward blades, and the outlet installation angle of the blades is controlled to be 45-90 degrees.
As a further scheme of the invention: the shaft disc is provided with a clamping groove matched with the conical wheel disc, and the conical wheel disc is inserted into the corresponding clamping groove.
As the invention proceeds
This device makes middle blade and runner section be one-step scheme through toper rim plate and toper wheel lid: the upper surface of the conical wheel disc is provided with a plurality of positioning grooves matched with the blades, and the positioning grooves are uniformly and circumferentially arranged around the shaft disc.
As a further scheme of the invention: the side face of each blade is fixedly welded with an obliquely arranged wind distribution plate, the wind distribution plates are streamline, and the front ends of the round parts of the wind distribution plates are close to the edges of the conical wheel discs.
Compared with the prior art, the invention has the beneficial effects that:
the structure form that reduces gradually now ensures that the air current is by effectual acceleration when the runner is being passed through to can effectively improve the dynamic pressure when the air current is discharged from the cone pulley lid, more can improve the penetrating power of air current, in order to reach the temperature gradient that reduces in the stove, improve the purpose of heating effect, and make this device possess high pressure, large-traffic, efficient characteristics.
Drawings
Fig. 1 is a schematic structural view of a meridian acceleration centrifugal fan impeller of a high-temperature industrial furnace.
Fig. 2 is a schematic top view of a meridian acceleration centrifugal fan impeller of a high-temperature industrial furnace.
FIG. 3 is a schematic top view of a blade in a meridian acceleration centrifugal fan impeller of a high-temperature industrial furnace.
In the figure: 1. a blade; 2. riveting; 3. a base plate; 4. a reel; 5. a tapered wheel disc; 6. a cone wheel cover; 7. positioning a groove; 8. a wind distribution plate.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1, 2 and 3, in an embodiment of the present invention, an impeller of a meridian acceleration centrifugal fan for a high-temperature industrial furnace includes a blade 1, rivets 2, a bottom plate 3, a shaft disc 4, a conical wheel disc 5 and a conical wheel cover 6, wherein the shaft disc 4 is rotatably connected to the center of the upper surface of the bottom plate 3, and the shaft disc 4 penetrates through a through hole formed in the center of the conical wheel disc 5 and is riveted with the conical wheel disc 5 through a plurality of rivets 2; the upper surface of the conical wheel disc 5 is fixedly connected with a plurality of blades 1 which are uniformly and circumferentially arranged around the shaft disc 4, and the upper surface of the bottom plate 3 is fixedly connected with a conical wheel cover 6.
Need to explain: through conical wheel dish 5 and conical wheel cover 6 make middle blade 1 and runner section present the progressively reduced structural style, ensure that the air current is effectual with higher speed when the runner (conical wheel cover 6) is passed through to can effectively improve the dynamic pressure when the air current is discharged from conical wheel cover 6, more can improve the penetrating power of air current, in order to reach the temperature gradient that reduces in the stove, improve the purpose of heating effect, and make this device possess high pressure, large-traffic, efficient characteristics.
Referring to fig. 1, the tapered wheel disc 5 is set to be inclined toward the hub 4.
The upper end opening of the cone-shaped wheel cover 6 is smaller than the lower end opening thereof.
The blades 1 are solid plate type backward blades, and the installation angle of the outlet of each blade 1 is controlled to be 45-90 degrees.
The shaft disc 4 is provided with a clamping groove matched with the conical wheel disc 5, and the conical wheel disc 5 is inserted into the corresponding clamping groove.
Need to explain: the shaft disc 4 is connected with the conical wheel disc 5 through the clamping groove.
The upper surface of the conical wheel disc 5 is provided with a plurality of positioning grooves 7 matched with the blades 1, and the plurality of positioning grooves 7 are uniformly and circumferentially arranged around the shaft disc 4.
Need to explain: the installation of the blade 1 can be positioned through the positioning groove 7, and the connection of the blade 1 and the conical wheel disc 5 is facilitated.
The side face of the blade 1 is fixedly welded with an obliquely arranged wind distribution plate 8, the wind distribution plate 8 is streamline, and the front end of the round part of the wind distribution plate 8 is close to the edge of the conical wheel disc 5.
Need to explain: the rotation through blade 1 can drive and divide aerofoil 8 to rotate, can separate gas through dividing aerofoil 8, reduces the probability that the air current assaulted blade 1 bottom to reduce the wearing and tearing speed of blade 1 and toper rim plate 5, improve the practicality of device.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for the convenience of description of the present invention and for simplicity of description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the present invention should not be construed as being limited thereto, and it should be noted that the terms "mounted" and "connected" should be interpreted broadly, for example, as being able to be fixedly connected, detachably connected, or integrally formed, mechanically connected or indirectly connected through an intermediate, and the specific meaning of the terms in the invention can be understood through specific situations.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A meridian acceleration centrifugal fan impeller of a high-temperature industrial furnace comprises blades (1), rivets (2), a bottom plate (3), a shaft disc (4), a conical wheel disc (5) and a conical wheel cover (6), and is characterized in that the shaft disc (4) is rotatably connected to the center of the upper surface of the bottom plate (3), and the shaft disc (4) penetrates through a through hole formed in the center of the conical wheel disc (5) and is riveted with the conical wheel disc (5) through the rivets (2); the upper surface of the conical wheel disc (5) is fixedly connected with a plurality of blades (1) which are uniformly and circumferentially arranged around the shaft disc (4), and the upper surface of the bottom plate (3) is fixedly connected with a conical wheel cover (6).
2. A radial acceleration centrifugal fan impeller for high-temperature industrial furnaces and kilns according to claim 1, characterised in that said conical disks (5) are set convergent obliquely towards the disks (4).
3. A radial acceleration centrifugal fan impeller for high-temperature industrial furnaces and kilns according to claim 1, characterized in that the upper end opening of the conical shroud (6) is smaller than the lower end opening thereof.
4. The meridian acceleration centrifugal fan impeller of the high-temperature industrial furnace according to the claim 1, characterized in that, the said blade (1) is a solid plate type backward blade, the outlet installation angle of the blade (1) is controlled at 45 ° -90 °.
5. The meridian acceleration centrifugal fan impeller of the high-temperature industrial furnace kiln according to claim 1, characterized in that the shaft disc (4) is provided with a slot matched with the conical wheel disc (5), and the conical wheel disc (5) is inserted in the corresponding slot.
6. The radial acceleration centrifugal fan impeller of the high-temperature industrial furnace kiln is characterized in that a plurality of positioning grooves (7) matched with the blades (1) are formed in the upper surface of the conical wheel disc (5), and the positioning grooves (7) are uniformly and circumferentially arranged around the shaft disc (4).
7. The meridian acceleration centrifugal fan impeller of the high-temperature industrial furnace and kiln according to claim 1, characterized in that the side of the blade (1) is welded and fixed with an inclined air distribution plate (8), the air distribution plate (8) is streamline, and the front end of the round part of the air distribution plate (8) is arranged near the edge of the conical wheel disc (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910955001.4A CN110685938A (en) | 2019-10-09 | 2019-10-09 | Meridian acceleration centrifugal fan impeller of high-temperature industrial furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910955001.4A CN110685938A (en) | 2019-10-09 | 2019-10-09 | Meridian acceleration centrifugal fan impeller of high-temperature industrial furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110685938A true CN110685938A (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910955001.4A Pending CN110685938A (en) | 2019-10-09 | 2019-10-09 | Meridian acceleration centrifugal fan impeller of high-temperature industrial furnace |
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| Country | Link |
|---|---|
| CN (1) | CN110685938A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325659A (en) * | 2020-11-24 | 2021-02-05 | 宁波银瓷新材料有限公司 | Air control device for silicon nitride ceramic sintering furnace |
| CN113931874A (en) * | 2021-10-12 | 2022-01-14 | 广州市凯卫莎环保科技有限公司 | Impeller and processing method thereof and high-temperature centrifugal fan applying impeller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358244A (en) * | 1977-01-28 | 1982-11-09 | Kawasaki Jukogyo Kabushiki Kaisha | Single curvature fan wheel of a diagonal flow fan |
| DE3708040A1 (en) * | 1987-03-12 | 1988-09-22 | Ziehl Abegg Gmbh & Co Kg | Motor fan impeller with conical air flow |
| CN2487901Y (en) * | 2001-05-21 | 2002-04-24 | 卜维平 | Closed inclined flow vane cylinder fan |
| CN204628064U (en) * | 2015-04-23 | 2015-09-09 | 常州优越机械制造有限公司 | A kind of Combined centrifugal fan impeller |
| CN105351250A (en) * | 2015-12-18 | 2016-02-24 | 中车大连机车研究所有限公司 | Centrifugal type diagonal impeller |
| CN206874515U (en) * | 2017-06-23 | 2018-01-12 | 株洲联诚集团控股股份有限公司 | A kind of motor-car aids in transformer cabinet cooling fan |
| CN207004915U (en) * | 2017-03-31 | 2018-02-13 | 攀枝花川特风机有限公司 | Centrifugal blower fan blade wheel |
-
2019
- 2019-10-09 CN CN201910955001.4A patent/CN110685938A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358244A (en) * | 1977-01-28 | 1982-11-09 | Kawasaki Jukogyo Kabushiki Kaisha | Single curvature fan wheel of a diagonal flow fan |
| DE3708040A1 (en) * | 1987-03-12 | 1988-09-22 | Ziehl Abegg Gmbh & Co Kg | Motor fan impeller with conical air flow |
| CN2487901Y (en) * | 2001-05-21 | 2002-04-24 | 卜维平 | Closed inclined flow vane cylinder fan |
| CN204628064U (en) * | 2015-04-23 | 2015-09-09 | 常州优越机械制造有限公司 | A kind of Combined centrifugal fan impeller |
| CN105351250A (en) * | 2015-12-18 | 2016-02-24 | 中车大连机车研究所有限公司 | Centrifugal type diagonal impeller |
| CN207004915U (en) * | 2017-03-31 | 2018-02-13 | 攀枝花川特风机有限公司 | Centrifugal blower fan blade wheel |
| CN206874515U (en) * | 2017-06-23 | 2018-01-12 | 株洲联诚集团控股股份有限公司 | A kind of motor-car aids in transformer cabinet cooling fan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325659A (en) * | 2020-11-24 | 2021-02-05 | 宁波银瓷新材料有限公司 | Air control device for silicon nitride ceramic sintering furnace |
| CN113931874A (en) * | 2021-10-12 | 2022-01-14 | 广州市凯卫莎环保科技有限公司 | Impeller and processing method thereof and high-temperature centrifugal fan applying impeller |
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Application publication date: 20200114 |