CN202612153U - Centrifugal fan for high-temperature environment and oven with same - Google Patents
Centrifugal fan for high-temperature environment and oven with same Download PDFInfo
- Publication number
- CN202612153U CN202612153U CN201220282910XU CN201220282910U CN202612153U CN 202612153 U CN202612153 U CN 202612153U CN 201220282910X U CN201220282910X U CN 201220282910XU CN 201220282910 U CN201220282910 U CN 201220282910U CN 202612153 U CN202612153 U CN 202612153U
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- centrifugal
- impeller assembly
- centrifugal impeller
- fan
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Abstract
The utility model discloses a centrifugal fan for a high-temperature environment. The centrifugal fan comprises a centrifugal impeller assembly arranged in a high-temperature zone and a motor arranged in a normal-temperature zone; the centrifugal impeller assembly is connected with an output shaft of the motor; a fan cover is arranged between the centrifugal impeller assembly and the motor; a fan wheel for air-tightly sealing the axial installation clearance of the centrifugal impeller assembly is arranged in the fan cover; and the fan wheel is arranged on the output shaft of the motor. The centrifugal fan for the high-temperature environment has the advantages of simple structure, convenience in implementation and long service life, and can block high-temperature airflow. The utility model also discloses an oven with the centrifugal fan for the high-temperature environment.
Description
Technical field
The blower fan that the utility model relates to food, pharmacy package packing machine and is 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 mount and the housing; Along with the accumulation of heat in motor mount and the housing, the motor of centrifugal blower is burnt out easily, causes the spreadable life of centrifugal blower to shorten.
The model utility content
The technical problem that the utility model will solve is the deficiency that overcomes existing technology, and a kind of simple in structure, baking oven of being convenient to implement, can stop the centrifugal blower that is used for hot environment of high temperature gas flow, long service life and having this centrifugal blower is provided.
For solving the problems of the technologies described above, the utility model 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 motor of being located at the normal temperature district; Said centrifugal impeller assembly is connected with the output shaft of motor; Be equiped with fan guard between said centrifugal impeller assembly and the said motor, be provided with the fan wheel that is used for the axial assemblage gap hermetic seal of centrifugal impeller assembly in the said fan guard, said fan wheel is installed on the output shaft of motor.
Said fan guard is in the form of annular discs, and discoid fan guard one end is provided with the outer relief opening of axial assemblage gap that covers at said centrifugal impeller assembly, and the other end is connected with motor and offers and the extraneous suction port that communicates.
Said suction port is provided with a plurality of, and a plurality of suction ports circumferentially evenly are provided with along discoid fan guard.
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 fan guard 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 fan guard of said centrifugal blower, fan wheel and motor all are located at the outer normal temperature district of casing.
Compared with prior art, the advantage of the utility model is:
The centrifugal blower that is used for hot environment of the utility model; The fan wheel and the fan guard that are used for the axial assemblage gap hermetic seal of centrifugal impeller assembly are housed between centrifugal impeller assembly and motor; Can be through fan wheel and fan guard 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 motor; The too high phenomenon of motor temperature when having eliminated equipment operation, thereby the working life of prolongation centrifugal blower.The baking oven of the utility model 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 the structural representation of centrifugal blower in the utility model.
Fig. 2 is the structural representation of baking oven in the utility model.
Each label is represented among the figure:
1, centrifugal impeller assembly; 2, fan guard; 3, motor; 4, fan wheel; 5, casing; 6, normal temperature district; 7, heat-insulating block; 11, centrifugal impeller; 21, relief opening; 22, suction port; 51, high-temperature zone; 52, drying section; 53, guide channel.
Embodiment
Fig. 1 and Fig. 2 show a kind of centrifugal blower embodiment who is used for hot environment of the utility model; This centrifugal blower comprises the centrifugal impeller assembly 1 of being located at high-temperature zone 51 and the motor 3 of being located at normal temperature district 6; Centrifugal impeller assembly 1 is connected with the output shaft of motor 3, is equiped with fan guard 2 between centrifugal impeller assembly 1 and the motor 3, is provided with the fan wheel 4 that is used for the axial assemblage gap hermetic seal of centrifugal impeller assembly 1 in the fan guard 2; Fan wheel 4 is installed on the output shaft of motor 3; Can be through fan wheel 4 and fan guard 2 to the axial assemblage gap sealing of centrifugal impeller assembly 1, it is simple in structure, be convenient to implement, and can stop effectively that high temperature gas flow gets into motor 3; The too high phenomenon of motor 3 temperature when having eliminated equipment operation, thereby the working life of prolongation centrifugal blower; Centrifugal impeller assembly 1 is driven by motor 3 with fan wheel 4 simultaneously, does not need to establish power source in addition, simplifies the structure, and has reduced cost.
In the present embodiment; Fan guard 2 is in the form of annular discs; Discoid fan guard 2 one ends are provided with the outer relief opening 21 of axial assemblage gap that covers at centrifugal impeller assembly 1; The other end is connected with motor 3 and offers and the extraneous a plurality of suction ports 22 that communicate, and a plurality of suction ports 22 circumferentially evenly are provided with along discoid fan guard 2, and each suction port 22 is along the axial setting of discoid fan guard 2; 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 is affixed with fan guard 2, can further reduce the transmission of heat through heat-insulating block 7.
The working principle of the centrifugal blower of the utility model: during centrifugal blower work, drive centrifugal impeller assembly 1 and fan wheel 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 of high-temperature zone 51 and along discharging, reaches the purpose (the mobile direction of high-temperature gas is shown in dotted arrow among the figure) of continuous blast; Fan wheel 4 is rotated under the driving of motor 3; Suck normal temperature district 6 gases from suction port 22; And directly blow to relief opening 21, get into and receive the high-temperature gas resistance behind the axial assemblage gap of centrifugal impeller assembly 1 and supercharging and form hermetic seal gradually, thereby the gas that prevents high-temperature zone 51 flows into motor 3 along the axial assemblage gap of centrifugal impeller assembly 1; Simultaneously; Because what suck 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. 2 shows a kind of baking oven embodiment of the utility model; This baking oven comprises casing 5; Casing 5 inside are divided into high-temperature zone 51 and drying section 52; High-temperature zone 51 is provided with the guide channel 53 that is communicated with drying section 52, is equiped with the above-mentioned centrifugal blower that is used for hot environment on the casing 5, and the centrifugal impeller assembly 1 of centrifugal blower is installed in the guide channel 53 of high-temperature zone 51; The fan guard 2 of centrifugal blower, fan wheel 4 and motor 3 all are located at the normal temperature district outside the casing 5, and heat-insulating block 7 is fixed on the casing 5 through fan guard 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.
The above-mentioned just preferred embodiment of the utility model is not that the utility model is done any pro forma restriction.Though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model.Any those of ordinary skill in the art; Under the situation that does not break away from the utility model technological scheme scope; All the technology contents of above-mentioned announcement capable of using is made many possible changes and modification to the utility model technological scheme, or is revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from the utility model technological scheme, all should drop in the scope of the utility model technological scheme protection any simple modification, equivalent variations and modification that above embodiment did according to the utility model technical spirit.
Claims (5)
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 motor (3) of being located at normal temperature district (6); Said centrifugal impeller assembly (1) is connected with the output shaft of motor (3); It is characterized in that: be equiped with fan guard (2) between said centrifugal impeller assembly (1) and the said motor (3); Be provided with the fan wheel (4) that is used for the axial assemblage gap hermetic seal of centrifugal impeller assembly (1) in the said fan guard (2), said fan wheel (4) is installed on the output shaft of motor (3).
2. the centrifugal blower that is used for hot environment according to claim 1; It is characterized in that: said fan guard (2) is in the form of annular discs; Discoid fan guard (2) one ends are provided with the outer relief opening (21) of axial assemblage gap that covers at said centrifugal impeller assembly (1), and the other end is connected with motor (3) and offers and the extraneous suction port (22) that communicates.
3. the centrifugal blower that is used for hot environment according to claim 2 is characterized in that: said suction port (22) is provided with a plurality of, and a plurality of suction ports (22) circumferentially evenly are provided with along discoid fan guard (2).
4. according to each described centrifugal blower that is used for hot environment in the claim 1 to 3; 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 fan guard (2).
5. 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 4, the centrifugal impeller assembly (1) of said centrifugal blower is installed in the guide channel (53) of said high-temperature zone (51), and the fan guard of said centrifugal blower (2), fan wheel (4) and motor (3) all are located at the outer normal temperature district of casing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220282910XU CN202612153U (en) | 2012-06-15 | 2012-06-15 | Centrifugal fan for high-temperature environment and oven with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220282910XU CN202612153U (en) | 2012-06-15 | 2012-06-15 | Centrifugal fan for high-temperature environment and oven with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612153U true CN202612153U (en) | 2012-12-19 |
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ID=47345857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220282910XU Expired - Fee Related CN202612153U (en) | 2012-06-15 | 2012-06-15 | Centrifugal fan for high-temperature environment and oven with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404306A (en) * | 2018-12-29 | 2019-03-01 | 张家港保税区创典炉窑通风设备有限公司 | Cooling centrifugal hot air circulation blower can be carried out to stove inside |
-
2012
- 2012-06-15 CN CN201220282910XU patent/CN202612153U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404306A (en) * | 2018-12-29 | 2019-03-01 | 张家港保税区创典炉窑通风设备有限公司 | Cooling centrifugal hot air circulation blower can be carried out to stove inside |
| CN109404306B (en) * | 2018-12-29 | 2024-04-12 | 张家港保税区创典炉窑通风设备有限公司 | Centrifugal hot air circulating fan capable of cooling inside kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20150615 |
|
| EXPY | Termination of patent right or utility model |