CN102705249A - Centrifugal fan for high temperature environment and drying oven for centrifugal fan - Google Patents
Centrifugal fan for high temperature environment and drying oven for centrifugal fan Download PDFInfo
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- CN102705249A CN102705249A CN2012101979602A CN201210197960A CN102705249A CN 102705249 A CN102705249 A CN 102705249A CN 2012101979602 A CN2012101979602 A CN 2012101979602A CN 201210197960 A CN201210197960 A CN 201210197960A CN 102705249 A CN102705249 A CN 102705249A
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- 238000001035 drying Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 49
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 28
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
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Abstract
The invention discloses a centrifugal fan for a high temperature environment. The centrifugal fan comprises a centrifugal vane wheel assembly arranged in a high temperature area and a motor assembly arranged in a normal temperature area; the centrifugal vane wheel assembly is connected with the output shaft of the motor assembly; and a gas sealing device for sealing the axial installation gap of the centrifugal vane wheel assembly is arranged between the centrifugal vane wheel assembly and the motor assembly. The centrifugal fan for the high temperature environment has the advantages of simple structure, convenience in implementation, capacity of stopping gas flow through the gas sealing structure, and long service life. The invention also discloses a drying oven for the centrifugal fan for the high temperature environment.
Description
Technical field
The blower fan that the present invention relates to food, pharmacy package packing machine and be used for this field relates in particular to centrifugal blower that is used for hot environment and the baking oven with this centrifugal blower.
Background technique
In the existing baking oven bringing-up section, most of hot blast flows to the working zone downwards under the centrifugal blower air drafting effect, carry out the medicine bottle drying and sterilizing.The working principle of centrifugal blower is: when motor rotates the rotation of drive draught fan impeller; Gas in the impeller between the blade is and then rotation also, and under action of centrifugal force, throws away these gas, and gas flow rate is increased; Gas converts kinetic energy into static energy in flowing; Along with the supercharging of fluid, make static energy convert kinetic energy again into then, discharge gas through relief opening; When discharging gas, formed certain negative pressure in the middle of the impeller, the gas of high-temperature zone is mended into negative pressuren zone immediately in the baking oven, and centrifugal blower is constantly discharged and is mended gas under the continuous turning effort of impeller, thereby reaches the purpose of continuous blast.Under the situation of centrifugal blower continuous firing; The narrow zone air pressure of centrifugal impeller assembly periphery also increases to some extent; The part hot gas that causes not flowing to the working zone is from the suction of blower fan between centers gap or because of in pressure reduction entering motor base and the housing; Along with the accumulation of heat in motor base and the housing, the motor of centrifugal blower is burnt out easily, causes the spreadable life of centrifugal blower to shorten.
Summary of the invention
The technical problem that the present invention will solve is the deficiency that overcomes existing technology, provide a kind of simple in structure, be convenient to implement, can stop the centrifugal blower that is used for hot environment of high temperature gas flow, long service life and have the baking oven of this centrifugal blower through the hermetic seal structure.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of centrifugal blower that is used for hot environment; Comprise the centrifugal impeller assembly of being located at the high-temperature zone and the electric machine assembly of being located at the normal temperature district; Said centrifugal impeller assembly is connected with the output shaft of electric machine assembly, is equiped with the gas sealing mechanism that is used for the axial assemblage gap sealing of centrifugal impeller assembly between said centrifugal impeller assembly and the said electric machine assembly.
Said gas sealing mechanism is by the shaft-driven centrifugal pressurizing pack of the output of said electric machine assembly, and the axial assemblage gap place at the centrifugal impeller assembly when said centrifugal pressurizing pack is worked forms hermetic seal.
Said centrifugal pressurizing pack comprises airtight sealing cover and impeller; Said airtight sealing cover one end is provided with the outer relief opening of axial assemblage gap that covers at said centrifugal impeller assembly; The other end is connected with electric machine assembly; Offer on the said airtight sealing cover and the extraneous wind-supplying mouth that communicates, said impeller is installed on the output shaft of motor and is positioned at said airtight sealing cover.
Said airtight sealing cover internal fixation has barge board; Said barge board is between said wind-supplying mouth and said impeller, between said airtight sealing cover and the barge board, between barge board and the impeller, be surrounded by the air intake passage that air feed successively feeds the axial assemblage gap of centrifugal impeller assembly place between impeller and airtight sealing cover and impeller and the centrifugal impeller assembly.
Said impeller comprises rotating disk and a plurality of blade, and the output shaft of said rotating disk and motor is affixed, and near a side of said barge board, and circumferentially evenly arrange along rotating disk by a plurality of blade on rotating disk for said a plurality of vanes fixed.
Said airtight sealing cover is in the form of annular discs, and said wind-supplying mouth is provided with a plurality of, and said a plurality of wind-supplying mouths evenly arrange circumferentially that along disk each wind-supplying mouth is along the radially setting of disk.
Said electric machine assembly comprises pedestal and motor, and said motor is fixed on the pedestal, and the output shaft of said motor passes pedestal and is connected with said centrifugal impeller assembly, and said pedestal is connected with said airtight sealing cover.
Said pedestal is provided with cooling water passage.
Said centrifugal impeller assembly comprises centrifugal impeller and heat-insulating block, and said centrifugal impeller is installed on the output shaft of said motor, and said heat-insulating block and said airtight sealing cover are affixed.
A kind of baking oven; Comprise casing; Said box house is divided into high-temperature zone and drying section, and said high-temperature zone is provided with the guide channel that is communicated with drying section, is equiped with the above-mentioned centrifugal blower that is used for hot environment on the said casing; The centrifugal impeller assembly of said centrifugal blower is installed in the guide channel of said high-temperature zone, and the electric machine assembly of said centrifugal blower is located at the outer normal temperature district of casing.
Compared with prior art, the invention has the advantages that:
The centrifugal blower that is used for hot environment of the present invention; Between centrifugal impeller assembly and electric machine assembly, install gas sealing mechanism; Can be through this gas sealing mechanism to the axial assemblage gap sealing of centrifugal impeller assembly, it is simple in structure, be convenient to implement, and can stop effectively that high temperature gas flow gets into electric machine assembly; The too high phenomenon of electric machine assembly temperature when having eliminated equipment operation, thereby the working life of prolongation centrifugal blower.Baking oven of the present invention owing to be equiped with the above-mentioned centrifugal blower that is used for hot environment, therefore also possesses the corresponding techniques effect.
Description of drawings
Fig. 1 is a kind of embodiment's of centrifugal blower among the present invention a structural representation.
Fig. 2 is the main TV structure schematic representation of the barge board in the centrifugal blower of the present invention.
Fig. 3 is the another kind of embodiment's of centrifugal blower among the present invention a structural representation.
Fig. 4 is the structural representation of baking oven among the present invention.
Each label is represented among the figure:
1, centrifugal impeller assembly; 2, pedestal; 3, motor; 4, centrifugal pressurizing pack; 5, casing; 6, normal temperature district; 7, heat-insulating block; 11, centrifugal impeller; 21, cooling water passage; 41, airtight sealing cover; 42, impeller; 43, barge board; 44, air intake passage; 51, high-temperature zone; 52, drying section; 53, guide channel; 411, relief opening; 412, wind-supplying mouth; 421, rotating disk; 422, blade.
Embodiment
Fig. 1 and Fig. 2 show a kind of centrifugal blower embodiment who is used for hot environment of the present invention, and this centrifugal blower comprises centrifugal impeller assembly 1 and electric machine assembly, and centrifugal impeller assembly 1 is located at high-temperature zone 51; Electric machine assembly is located at normal temperature district 6; Centrifugal impeller assembly 1 is connected with the output shaft of electric machine assembly, is equiped with gas sealing mechanism between centrifugal impeller assembly 1 and the electric machine assembly, can be to the axial assemblage gap sealing of centrifugal impeller assembly 1 through this gas sealing mechanism; It is simple in structure, be convenient to implement; Can stop effectively that high temperature gas flow gets into electric machine assembly, the too high phenomenon of electric machine assembly temperature when having eliminated equipment operation can prolong working life of centrifugal blower.
In the present embodiment, gas sealing mechanism is by the shaft-driven centrifugal pressurizing pack 4 of the output of electric machine assembly, forms hermetic seal at the axial assemblage gap place of centrifugal impeller assembly 1 when centrifugal pressurizing pack 4 is worked.This centrifugal pressurizing pack 4 comprises airtight sealing cover 41 and impeller 42; Airtight sealing cover 41 1 ends are provided with the outer relief opening 411 of axial assemblage gap that covers at centrifugal impeller assembly 1; The other end is connected with electric machine assembly; Offer a plurality of and extraneous wind-supplying mouth 412 that communicates on the airtight sealing cover 41, each wind-supplying mouth 412 is along the radially setting of disk, and a plurality of wind-supplying mouth 412 is along circumferentially evenly arranging; Impeller 42 is installed on the output shaft of electric machine assembly and is positioned at airtight sealing cover 41; Airtight sealing cover 41 internal fixation have barge board 43; Barge board 43 is between wind-supplying mouth 412 and impeller 42; Between airtight sealing cover 41 and the barge board 43, between barge board 43 and the impeller 42, between impeller 42 and the airtight sealing cover 41 and be surrounded by the air intake passage 44 that air feed successively feeds centrifugal impeller assembly 1 axial assemblage gap place between impeller 42 and the centrifugal impeller assembly 1; This air intake passage 44 is on axial section in a zigzag, helps air pressure and keeps stable; Impeller 42 comprises rotating disk 421 and a plurality of blades 422; Rotating disk 421 is affixed with the output shaft of electric machine assembly; A plurality of blades 422 are fixed on the rotating disk 421 side near barge board 43; And a plurality of blades 422 are circumferentially evenly arranged along rotating disk 421, because blade 422 contiguous barge boards 43 are provided with, produce the effect of centrifugal supercharging when making impeller 42 rotations; Electric machine assembly comprises pedestal 2 and motor 3, and motor 3 is fixed on the pedestal 2, and the output shaft of motor 3 passes pedestal 2 centrifugal impeller assemblies 1 and connects, and pedestal 2 is connected with airtight sealing cover 41; Pedestal 2 is provided with cooling water passage 21; Centrifugal impeller assembly 1 comprises centrifugal impeller 11 and heat-insulating block 7, and centrifugal impeller 11 is installed on the output shaft of motor 3, and heat-insulating block 7 and airtight sealing cover 41 are affixed, can further reduce the transmission of heat through heat-insulating block 7.
The working principle of the centrifugal blower of present embodiment: during centrifugal blower work, drive centrifugal impeller assembly 1 and centrifugal pressurizing pack 4 simultaneously by motor 3.Under the driving of motor 3, centrifugal impeller assembly 1 proper functioning with the high-temperature gas suction back supercharging and the discharge of high-temperature zone 51, reaches the purpose (high-temperature gas flows direction shown in dotted arrow in scheming) of continuous blast; Impeller 42 in the centrifugal pressurizing pack 4 rotates under the driving of motor 3; Suck normal temperature district 6 gases from wind-supplying mouth 412, under the action of the centrifugal, the gas of suction flows to relief opening 411 along flexuose air intake passage 44; And supercharging forms the hermetic seal to the axial assemblage gap place of centrifugal impeller assembly 1 in airtight sealing cover 41; Thereby prevent the assemblage gap inflow pedestal 2 and motor 3 of the gas of high-temperature zone 51 along centrifugal impeller assembly 1 end, simultaneously, because suction is the gas at normal temperature in normal temperature district 6; Therefore, can further reduce the temperature (the gas at normal temperature flow direction is shown in solid arrow among the figure) of motor 3 output shafts and motor 3 through cold and hot exchange.
Fig. 3 shows the centrifugal blower embodiment that another kind of the present invention is used for hot environment; A present embodiment and a last embodiment are basic identical, and difference only is that the electric machine assembly of present embodiment only is provided with motor 3 and does not establish pedestal 2, and this motor 3 directly is connected with airtight sealing cover 41; In addition; Impeller 42 is common fan wheel, and each wind-supplying mouth 412 is provided with vertically, and does not establish barge board 43; The working principle of present embodiment and a last embodiment's working principle is basic identical, be equally to suck normal temperature district 6 gases through impeller 42 from wind-supplying mouth 412, and supercharging forms the hermetic seal to the axial assemblage gap place of centrifugal impeller assembly 1 in airtight sealing cover 41.
Fig. 1 and Fig. 4 show a kind of baking oven embodiment of the present invention; This baking oven comprises casing 5, and casing 5 inside are divided into high-temperature zone 51 and drying section 52, and high-temperature zone 51 is provided with the guide channel 53 that is communicated with drying section 52; Be equiped with the above-mentioned centrifugal blower that is used for hot environment on the casing 5; The centrifugal impeller assembly 1 of centrifugal blower is installed in the guide channel 53 of high-temperature zone 51, and the electric machine assembly of centrifugal blower is located at the normal temperature district outside the casing 5, and heat-insulating block 7 is fixed on the casing 5 through pedestal 2.During baking oven work, centrifugal impeller assembly 1 is 51 suction high-temperature gases from the high-temperature zone, and blow to drying section 52 along guide channel 53, with the bottle oven dry of drying section 52.
Above-mentioned is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention.Any those of ordinary skill in the art, under the situation that does not break away from technological scheme scope of the present invention, all the technology contents of above-mentioned announcement capable of using is made many possible changes and modification to technological scheme of the present invention, or is revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technological scheme of the present invention, all should drop in the scope of technological scheme protection of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (10)
1. centrifugal blower that is used for hot environment; Comprise the centrifugal impeller assembly (1) of being located at high-temperature zone (51) and the electric machine assembly of being located at normal temperature district (6); Said centrifugal impeller assembly (1) is connected with the output shaft of electric machine assembly, it is characterized in that: be equiped with the gas sealing mechanism that is used for the axial assemblage gap sealing of centrifugal impeller assembly (1) between said centrifugal impeller assembly (1) and the said electric machine assembly.
2. the centrifugal blower that is used for hot environment according to claim 1; It is characterized in that: said gas sealing mechanism is by the shaft-driven centrifugal pressurizing pack of the output of said electric machine assembly (4), and the axial assemblage gap place at centrifugal impeller assembly (1) during said centrifugal pressurizing pack (4) work forms hermetic seal.
3. the centrifugal blower that is used for hot environment according to claim 2; It is characterized in that: said centrifugal pressurizing pack (4) comprises airtight sealing cover (41) and impeller (42); Said airtight sealing cover (41) one ends are provided with the outer relief opening (411) of axial assemblage gap that covers at said centrifugal impeller assembly (1); The other end is connected with electric machine assembly; Offer on the said airtight sealing cover (41) and the extraneous wind-supplying mouth (412) that communicates, said impeller (42) is installed on the output shaft of electric machine assembly and is positioned at said airtight sealing cover (41).
4. the centrifugal blower that is used for hot environment according to claim 3; It is characterized in that: said airtight sealing cover (41) internal fixation has barge board (43); Said barge board (43) is positioned between said wind-supplying mouth (412) and the said impeller (42), between said airtight sealing cover (41) and the barge board (43), between barge board (43) and the impeller (42), between impeller (42) and the airtight sealing cover (41) and be surrounded by between impeller (42) and the centrifugal impeller assembly (1) successively that air feed feeds the axially air intake passage (44) at assemblage gap place of centrifugal impeller assembly (1).
5. the centrifugal blower that is used for hot environment according to claim 4; It is characterized in that: said impeller (42) comprises rotating disk (421) and a plurality of blade (422); Said rotating disk (421) is affixed with the output shaft of electric machine assembly; Said a plurality of blade (422) is fixed in rotating disk (421) and goes up the side near said barge board (43), and a plurality of blade (422) is circumferentially evenly arranged along rotating disk (421).
6. according to each described centrifugal blower that is used for hot environment in the claim 3 to 5; It is characterized in that: said airtight sealing cover (41) is in the form of annular discs; Said wind-supplying mouth (412) is provided with a plurality of; Said a plurality of wind-supplying mouth (412) evenly arranges circumferentially that along disk each wind-supplying mouth (412) is along the radially setting of disk.
7. according to each described centrifugal blower that is used for hot environment in the claim 3 to 5; It is characterized in that: said electric machine assembly comprises pedestal (2) and motor (3); Said motor (3) is fixed on the pedestal (2); The output shaft of said motor (3) passes pedestal (2) and is connected with said centrifugal impeller assembly (1), and said pedestal (2) is connected with said airtight sealing cover (41).
8. the centrifugal blower that is used for hot environment according to claim 7 is characterized in that: said pedestal (2) is provided with cooling water passage (21).
9. the centrifugal blower that is used for hot environment according to claim 7; It is characterized in that: said centrifugal impeller assembly (1) comprises centrifugal impeller (11) and heat-insulating block (7); Said centrifugal impeller (11) is installed on the output shaft of said motor (3), and said heat-insulating block (7) is affixed with said airtight sealing cover (41).
10. baking oven; Comprise casing (5); Said casing (5) inside is divided into high-temperature zone (51) and drying section (52); Said high-temperature zone (51) is provided with the guide channel (53) that is communicated with drying section (52); It is characterized in that: be equiped with on the said casing (5) like each described centrifugal blower that is used for hot environment in the claim 1 to 9, the centrifugal impeller assembly (1) of said centrifugal blower is installed in the guide channel (53) of said high-temperature zone (51), and the electric machine assembly of said centrifugal blower is located at the outer normal temperature district of casing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210197960.2A CN102705249B (en) | 2012-06-15 | 2012-06-15 | A kind of centrifugal blower for hot environment and there is the baking oven of this centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210197960.2A CN102705249B (en) | 2012-06-15 | 2012-06-15 | A kind of centrifugal blower for hot environment and there is the baking oven of this centrifugal blower |
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| Publication Number | Publication Date |
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| CN102705249A true CN102705249A (en) | 2012-10-03 |
| CN102705249B CN102705249B (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210197960.2A Active CN102705249B (en) | 2012-06-15 | 2012-06-15 | A kind of centrifugal blower for hot environment and there is the baking oven of this centrifugal blower |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033031A (en) * | 2012-10-31 | 2013-04-10 | 湘潭鑫源自控设备制造有限公司 | Automatically controlled drying device |
| CN105526181A (en) * | 2015-12-03 | 2016-04-27 | 湖南巴陵炉窑节能股份有限公司 | Draught fan for hot gas |
| CN107524620A (en) * | 2017-09-25 | 2017-12-29 | 张家港保税区创典炉窑通风设备有限公司 | A kind of centrifugal hot air circulation blower |
| CN114198340A (en) * | 2021-11-24 | 2022-03-18 | 华能重庆两江燃机发电有限责任公司 | SCR dilution fan that can start fast |
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| CN202612152U (en) * | 2012-06-15 | 2012-12-19 | 楚天科技股份有限公司 | Centrifugal fan applied in high-temperature environment and drying oven with centrifugal fan |
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2012
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Patent Citations (6)
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| GB827566A (en) * | 1956-12-03 | 1960-02-10 | Fuller Co | Improvements in centrifugal fluid fans |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033031A (en) * | 2012-10-31 | 2013-04-10 | 湘潭鑫源自控设备制造有限公司 | Automatically controlled drying device |
| CN103033031B (en) * | 2012-10-31 | 2017-02-08 | 湘潭鑫源自控设备制造有限公司 | Automatically controlled drying device |
| CN105526181A (en) * | 2015-12-03 | 2016-04-27 | 湖南巴陵炉窑节能股份有限公司 | Draught fan for hot gas |
| CN107524620A (en) * | 2017-09-25 | 2017-12-29 | 张家港保税区创典炉窑通风设备有限公司 | A kind of centrifugal hot air circulation blower |
| CN114198340A (en) * | 2021-11-24 | 2022-03-18 | 华能重庆两江燃机发电有限责任公司 | SCR dilution fan that can start fast |
| CN114198340B (en) * | 2021-11-24 | 2023-01-20 | 华能重庆两江燃机发电有限责任公司 | SCR dilution fan that can start fast |
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| CN102705249B (en) | 2015-11-11 |
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Application publication date: 20121003 Assignee: Changsha Pharmaceutical Equipment Industrial Technology Research Institute Co.,Ltd. Assignor: TRUKING TECHNOLOGY Ltd. Contract record no.: X2023980051833 Denomination of invention: A centrifugal fan for high-temperature environments and an oven with the centrifugal fan Granted publication date: 20151111 License type: Common License Record date: 20231213 |