CN107477012B - Novel high-temperature induced draft fan - Google Patents
Novel high-temperature induced draft fan Download PDFInfo
- Publication number
- CN107477012B CN107477012B CN201710845688.7A CN201710845688A CN107477012B CN 107477012 B CN107477012 B CN 107477012B CN 201710845688 A CN201710845688 A CN 201710845688A CN 107477012 B CN107477012 B CN 107477012B
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- Prior art keywords
- heat dissipation
- main shaft
- shaft
- connecting disc
- motor
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 76
- 238000004321 preservation Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims 1
- 238000005266 casting Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
-
- 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
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- 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
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/12—Light metals
- F05D2300/121—Aluminium
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a novel high-temperature induced draft fan, which comprises a frame, a motor, a main shaft, a volute and an impeller, wherein the motor is arranged on the frame; is characterized in that the shaft diameter of the motor main shaft is larger than that of the common motor main shaft; one end of the main shaft is provided with a heat dissipation sleeve comprising a connecting disc, a heat dissipation shaft and a circular baffle plate, the center of the main shaft is provided with through holes matched with the shaft diameter of the main shaft, and the left end of the connecting disc is connected with the motor; the heat dissipation shaft is arranged in the connecting disc, the right end of the heat dissipation shaft is connected with the connecting disc and embedded in the groove of the connecting disc, and the left end of the heat dissipation shaft is abutted with the circular baffle; the edge of the circular baffle is connected with the connecting disc, and the cooling fan blade/cooling fins are arranged on the cooling shaft along the shaft diameter direction; an insulating layer is arranged around the main shaft between the circular baffle and the volute; the tail end of the main shaft is fixed with the impeller in taper fit by an oblique taper pin. The belt or coupling has the advantages of compact structure, small volume, safe and stable operation, reduction of the transmission of the traditional belt or coupling and high working efficiency; the natural heat dissipation is used, the heat dissipation effect is good, other cooling media are not needed, the energy consumption is low, and the heat dissipation device is suitable for working environments below 800 ℃.
Description
Technical Field
The invention belongs to the field of induced air devices, and particularly relates to a high-temperature induced draft fan.
Background
The induced draft fan is a driven fluid machine which relies on input mechanical energy to increase the pressure of gas and discharge the gas. Is widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced draft of boilers and industrial kilns; cooling and ventilation in air-conditioning devices and household appliances; drying and selecting grains; inflation and propulsion of wind tunnel wind source and air cushion ship, etc. In general, the induced draft fan has a certain use temperature and needs to run continuously for a long time, and the main shaft of the traditional induced draft fan can necessarily transfer very high heat, which causes rapid oxidation of lubricating oil in the bearing, and then causes damage to the bearing. The highest working temperature of the common induced draft fan is generally not more than 500 ℃, and the requirement of the production process can not be met far.
The Chinese patent application, application number 201210008628.7 and application publication number CN102536914A disclose a high temperature induced draft fan, comprising a motor, a main shaft driven by the motor, an impeller arranged at one end of the main shaft, a volute, a bearing seat and a bearing arranged in the bearing seat, wherein the main shaft is arranged in the bearing, a heat dissipation section is arranged on the main shaft, the heat dissipation section is a main shaft section positioned between one side surface of the bearing seat close to the volute and one side surface of the volute close to the bearing seat, and the bearing seat is a water-cooled bearing seat; the high-temperature induced draft fan further comprises an air inlet guide cover, and the air inlet guide cover is arranged outside an air inlet of the volute; the motor is a variable-frequency speed-regulating motor; the heat dissipation section of the main shaft is sleeved with a water-cooling heat dissipation sleeve or an air cooling device. The main shaft of this high temperature draught fan is last to set up the heat dissipation section, has increaseed the heat dissipation area and the radiating rate of main shaft, has reduced the influence of main shaft heat conduction to the bearing, simultaneously, cools off the bearing through the bearing frame, has further guaranteed the life of bearing. The high-temperature induced draft fan has the advantages that the high-temperature induced draft fan is provided with the coupler and the bearing seat, so that the length of the main shaft is increased, the volume of the induced draft fan is increased, and the induced draft fan is inconvenient to install and maintain in a narrow scene of a working space; the water-cooled bearing seat can cool the bearing, but water is required to be supplied uninterruptedly, and a series of water supply systems such as a water pump, a water purification system and the like are arranged on site, so that the use and maintenance cost is increased; in addition, the high-temperature induced draft fan adopts the traditional coupling transmission as the traditional induced draft fan, has low efficiency, uses cooling water to supply and cool down, and greatly limits the research and development of the induced draft fan in the high-temperature-resistant direction.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the novel high-temperature induced draft fan which is compact in structure, small in size, safe and stable in operation, high in working efficiency, low in energy consumption and suitable for working environments below 800 ℃ and reduces the arrangement of a coupler.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a novel high-temperature induced draft fan comprises a frame, a motor arranged on the frame, a main shaft driven by the motor, a volute arranged at one end of the main shaft and an impeller; the motor spindle is characterized in that the shaft diameter of the motor spindle is larger than that of a common motor spindle, so that the strength of the spindle under the high-temperature condition is ensured; a heat dissipation section is arranged on one side, close to the motor, of the main shaft, and a heat dissipation sleeve is arranged on the outer side of the heat dissipation section; the heat dissipation sleeve comprises a connecting disc, a heat dissipation shaft and a circular baffle, wherein through holes matched with the shaft diameter of the main shaft are formed in the centers of the connecting disc, the left end of the connecting disc is connected with the motor, the heat dissipation shaft is arranged in the connecting disc, the right end of the heat dissipation shaft is connected with the connecting disc and is embedded into a groove of the connecting disc, the left end of the heat dissipation shaft is abutted with the circular baffle, the edge of the circular baffle is connected with the connecting disc, and the heat dissipation shaft is provided with cooling fan blades/heat dissipation fins along the shaft diameter direction; the main shaft between the circular baffle and the volute is provided with a heat preservation and insulation section, the periphery of the heat preservation and insulation section is provided with a heat preservation layer, heat preservation cotton is filled for heat insulation, heat transferred to the motor is reduced, and the heat dissipation sleeve is prevented from cracking at high temperature; the tail end of the main shaft is provided with an impeller connecting section, the main shaft is connected with the impeller in a taper fit manner, and the main shaft is fixedly connected by an oblique taper pin, so that the assembly and the disassembly are convenient and labor-saving.
As a preferable technical scheme of the invention, the length of the heat dissipation section is 1/3-1/2 of the length of the spindle outlet.
As the preferable technical scheme of the invention, for convenient processing, the connecting disc and the round baffle are cast pieces; and an insulating layer is arranged between the heat dissipation sleeve and the spiral case and between the heat dissipation sleeve and the main shaft to block the high temperature of the output shaft of the main shaft and prevent the heat dissipation sleeve from cracking in a high-temperature environment.
As the preferable technical scheme of the invention, a safety net is also arranged in the connecting disc to protect the spindle output shaft and the heat dissipation shaft.
As the preferable technical scheme of the invention, the radiating end is made of aluminum materials, and the radiating effect is good.
As the preferable technical scheme of the invention, the lower part of the heat dissipation sleeve is provided with an arc bracket which is connected with the frame and used for supporting and connecting the heat dissipation sleeve.
As the preferable technical scheme of the invention, the high-temperature induced draft fan further comprises an air inlet guide cover, and the air inlet guide cover is arranged outside an air inlet of the volute.
Compared with the prior art, the invention has the advantages of compact structure, small volume, safe and stable operation, reduction of the transmission of the traditional belt or coupler and high working efficiency; the heat dissipation mechanism uses natural heat dissipation, has good heat dissipation effect, does not need additional cooling medium, has small energy consumption and energy conservation, and is suitable for working environments below 800 ℃.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic cross-sectional view of the present invention.
In the figure: 10-a frame 11-an arc bracket 20-a motor 30-a main shaft 40-a volute 50-an impeller 60-a heat dissipation sleeve 61-a connecting disc 611-a safety net 62-a heat dissipation shaft 621-cooling fan blades/heat dissipation fins 63-a circular baffle 70-a heat preservation layer 80-an inclined taper pin 90-an air inlet guide cover.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 1, a novel high-temperature induced draft fan comprises a frame 10, a motor 20 arranged on the frame, a main shaft 30 driven by the motor, a volute 40 arranged at one end of the main shaft and an impeller 50, wherein the motor 10 uses a high-temperature-resistant motor, and only grease is required to be injected periodically for maintenance; the motor spindle 30 has a larger diameter than that of a common motor spindle, so that the strength of the spindle under the high temperature condition is ensured; one side of the main shaft 30, which is close to the motor 20, is provided with a heat dissipation section, and the outer side of the heat dissipation section is provided with a heat dissipation sleeve 60; the heat dissipation sleeve 60 comprises a connecting disc 61, a heat dissipation shaft 62 and a circular baffle 63, wherein through holes matched with the shaft diameter of the main shaft 30 are formed in the centers of the three, the left end of the connecting disc 61 is connected with the motor 20, the heat dissipation shaft 62 is installed in the connecting disc 61, the right end of the heat dissipation shaft 62 is connected with the connecting disc 61 through bolts and is embedded into a groove of the connecting disc, the left end of the heat dissipation shaft is abutted with the circular baffle 63, the edge of the circular baffle 63 is connected with the connecting disc 61, and the heat dissipation shaft 62 is provided with cooling fan blades/heat dissipation fins 621 along the shaft diameter direction; the main shaft between the circular baffle 63 and the volute 40 is set as a heat preservation and insulation section, a heat preservation layer 70 is arranged around the heat preservation and insulation section, heat preservation cotton is filled for heat insulation, heat transferred to the motor 20 is reduced, and the heat dissipation sleeve 60 is prevented from cracking at high temperature; the tail end of the main shaft 30 is provided with an impeller connecting section, the main shaft 30 is connected with the impeller 50 in a taper fit manner, and the main shaft is fixedly connected by an oblique taper pin 70, so that the assembly and the disassembly are convenient and labor-saving. In this embodiment, the cooling fan blade is used in fig. 1.
The diameter of the motor spindle 30 is 2-4.5 times of that of the common motor spindle.
The length of the heat dissipation section is 1/3-1/2 of the length of the main shaft 30.
For convenience in processing, the connecting disc 61 and the circular baffle 63 are cast pieces; and an insulating layer is arranged between the heat dissipation sleeve and the spiral case and between the heat dissipation sleeve and the main shaft to block the high temperature of the output shaft of the main shaft and prevent the heat dissipation sleeve from cracking in a high-temperature environment.
A safety net 611 is also arranged in the connecting disc 61 to protect the spindle 30 and the heat dissipation shaft 62.
The upper circumference of the heat dissipation sleeve 60 is uniformly provided with heat dissipation holes, thereby facilitating heat dissipation.
The heat dissipation shaft 62 is made of aluminum material, and has good heat dissipation effect.
The lower part of the heat dissipation sleeve 60 is provided with an arc-shaped bracket 11 which is connected with the frame 10 and is used for supporting the heat dissipation sleeve 60.
The high temperature induced draft fan also comprises an air inlet guide cover 90, and the air inlet guide cover 90 is arranged outside the air inlet of the volute 40.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. A novel high-temperature induced draft fan comprises a frame (10), a motor (20) arranged on the frame, a main shaft (30) driven by the motor, a volute (40) arranged at one end of the main shaft and an impeller (50); the motor spindle (30) is characterized in that the diameter of the output spindle is larger than that of the common motor spindle; a heat dissipation section is arranged on one side, close to the motor (20), of the main shaft (30), and a heat dissipation sleeve (60) is arranged on the outer side of the heat dissipation section; the heat dissipation sleeve (60) comprises a connecting disc (61), a heat dissipation shaft (62) and a circular baffle (63), through holes matched with the shaft diameter of the main shaft (30) are formed in the centers of the connecting disc (61), the left end of the connecting disc (61) is connected with the motor (20), the heat dissipation shaft (62) is arranged in the connecting disc (61), the right end of the heat dissipation shaft is connected with the connecting disc (61) through bolts and is embedded into a groove of the connecting disc, the left end of the heat dissipation shaft is abutted against the circular baffle (63), the edge of the circular baffle (63) is connected with the connecting disc (61), and heat dissipation fins (621) are arranged on the heat dissipation shaft (62) along the shaft diameter direction; the main shaft between the circular baffle (63) and the volute (40) is provided with a heat preservation and insulation section, the periphery of the heat preservation and insulation section is provided with a heat preservation layer (70) filled with heat preservation cotton; the main shaft (30) end set up to impeller linkage segment, main shaft (30) are connected with impeller (50) taper fit, heat dissipation axle (62) use aluminium material to make, heat dissipation cover (60) upper portion circumference evenly sets up the louvre, the convenient heat dissipation, motor main shaft (30) play the axle footpath and be 2-4.5 times of ordinary motor main shaft footpath, heat dissipation section length be 1/3-1/2 of main shaft (30) play axle length, connection pad (61) and circular baffle (63) be the casting, connection pad (61) inside still set up safety net (611), heat dissipation cover (60) lower part set up arc bracket (11), be connected with frame (10), high temperature draught fan still include air inlet kuppe (90), air inlet kuppe (90) set up in the outside of air intake (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710845688.7A CN107477012B (en) | 2017-09-19 | 2017-09-19 | Novel high-temperature induced draft fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710845688.7A CN107477012B (en) | 2017-09-19 | 2017-09-19 | Novel high-temperature induced draft fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107477012A CN107477012A (en) | 2017-12-15 |
| CN107477012B true CN107477012B (en) | 2023-12-22 |
Family
ID=60585464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710845688.7A Active CN107477012B (en) | 2017-09-19 | 2017-09-19 | Novel high-temperature induced draft fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107477012B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404339B (en) * | 2018-12-18 | 2023-09-22 | 南京磁谷科技有限公司 | Volute assembly for high-speed electric direct-drive centrifugal fan |
| CN114526253B (en) * | 2022-04-24 | 2022-07-05 | 佛山市南海九洲普惠风机有限公司 | Small boiler draught fan |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338125A (en) * | 2010-07-23 | 2012-02-01 | 钱素红 | Heat resistance blower fan |
| CN204284006U (en) * | 2014-10-15 | 2015-04-22 | 洛阳北玻台信风机技术有限责任公司 | A kind of front step bearing radiation system of motor of kiln Heating Cyclic blower fan |
| CN206175289U (en) * | 2016-11-08 | 2017-05-17 | 扬州宏远新材料股份有限公司 | Grease proofing draught fan |
| CN107100868A (en) * | 2017-06-07 | 2017-08-29 | 江苏恒康机电有限公司 | Inserted high-temperature fan |
| CN206487639U (en) * | 2016-12-27 | 2017-09-12 | 天津金鹏机电设备有限公司 | A kind of centrifugal blower case |
| CN207420906U (en) * | 2017-09-19 | 2018-05-29 | 张家港保税区创典炉窑通风设备有限公司 | A kind of new type high temperature air-introduced machine |
-
2017
- 2017-09-19 CN CN201710845688.7A patent/CN107477012B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338125A (en) * | 2010-07-23 | 2012-02-01 | 钱素红 | Heat resistance blower fan |
| CN204284006U (en) * | 2014-10-15 | 2015-04-22 | 洛阳北玻台信风机技术有限责任公司 | A kind of front step bearing radiation system of motor of kiln Heating Cyclic blower fan |
| CN206175289U (en) * | 2016-11-08 | 2017-05-17 | 扬州宏远新材料股份有限公司 | Grease proofing draught fan |
| CN206487639U (en) * | 2016-12-27 | 2017-09-12 | 天津金鹏机电设备有限公司 | A kind of centrifugal blower case |
| CN107100868A (en) * | 2017-06-07 | 2017-08-29 | 江苏恒康机电有限公司 | Inserted high-temperature fan |
| CN207420906U (en) * | 2017-09-19 | 2018-05-29 | 张家港保税区创典炉窑通风设备有限公司 | A kind of new type high temperature air-introduced machine |
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| Publication number | Publication date |
|---|---|
| CN107477012A (en) | 2017-12-15 |
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