Food-grade self-cleaning fan
By introducing a cleaning device and spray nozzle into a food-grade blower, high-pressure gas and cleaning liquid are used to automatically clean the inner wall of the blower casing, solving the problem of powder agglomeration on the inner wall of the blower and achieving a highly efficient and energy-saving cleaning effect.
Patent Information
- Application Number
- CN202520393595.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-03-07
AI Technical Summary
During the use of food-grade blowers, powdered foods are prone to clumping and spoiling on the inner wall of the volute, making cleaning difficult and inconvenient for manual cleaning.
A food-grade self-cleaning fan was designed, equipped with a cleaning device and spray nozzle. It uses high-pressure gas and cleaning liquid to automatically clean the inner wall of the fan casing. Combined with the rotation of the impeller, it achieves thorough cleaning. Powder impurities are discharged through the exhaust port.
It achieves automated cleaning of the inner wall of the fan casing, reduces the amount of cleaning fluid used, improves cleaning efficiency and effectiveness, prevents powder residue, and protects the impeller shaft from damage.
Smart Images
Figure CN223635006U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fan technical field, specifically, relate to a food grade self -cleaning fan. BACKGROUND
[0002] At present, food grade fan needs to be used on the food production line such as milk powder and flour. But the powder food will gather on the inner wall of the fan volute, cake, metamorphic after the long use of fan, cause the fan to be unable to use. Therefore, food grade fan needs to be cleaned regularly.
[0003] But manual is inconvenient to clean the inside of food grade fan. UTILITY MODEL CONTENTS
[0004] The utility model solves the problem that the inside of food grade fan is inconvenient to clean manually.
[0005] In order to solve the above problem, the utility model provides a food grade self -cleaning fan, the food grade self -cleaning fan includes: fan volute, the fan volute has the axial air inlet and the side air outlet, the fan volute bottom has the waste outlet, cleaning device, the cleaning device is installed in the fan volute, the cleaning device includes main pipeline and side pipeline, the main pipeline is used for the gas, the side pipeline is connected to the main pipeline and is used for the cleaning liquid, impeller, the impeller is installed in the fan volute, and the impeller shaft of the impeller is towards the air inlet, and drive device, the drive device is used to drive the rotation of the impeller shaft.
[0006] The technical effects reached after adopting the technical scheme are as follows: the cleaning device is used for cleaning the powder food on the inner wall of the fan volute. Specifically, the high-pressure gas of the main pipeline is used to blow off the powder attached to the inner wall of the fan volute, the main pipeline can make the airflow directly blow the inner wall to improve the blowing effect, and the impeller can rotate to realize the cleaning of the powder on the impeller. After the main powder impurities on the inner wall of the fan volute are blown off, the high-pressure cleaning liquid is introduced, the residual powder can be washed more thoroughly, the excessive residual powder is avoided, and more cleaning liquid is needed for continuous cleaning, so the cleaning liquid is saved. The powder cleaned down is discharged from the waste outlet at the bottom of the fan together with sewage. Because the side of the volute is an arc surface, the sewage can flow to the waste outlet, and the sewage is effectively discharged.
[0007] Further, the cleaning device is installed on the end face of the fan volute and is arranged around the impeller.
[0008] The technical effects achieved by the technical scheme are as follows: the cleaning device can clean the other side end face of the fan volute, the sewage flowing down from the upper part of the fan volute will not stay at the middle position, the cleaning devices at different heights continuously clean the sewage at different heights, and the cleaning effect is improved; the circumferentially arranged cleaning devices can clean the air guide surface of the impeller, and the air guide surface of the impeller can be cleaned by all the cleaning devices after one rotation of the impeller, so that the cleaning effect is more thorough.
[0009] Further, the main pipe is connected with the axial end face of the fan volute perpendicularly.
[0010] The technical effects achieved by the technical scheme are as follows: the main pipe and the end face are fixed conveniently, and the high-pressure gas can directly blow the other side end face and the impeller through the main pipe.
[0011] Further, the food-grade self-cleaning fan further comprises a spraying port arranged at the top of the fan volute.
[0012] The technical effects achieved by the technical scheme are as follows: the spraying port can clean the residual powder on the impeller and the impeller shaft, and the mixed powder on the impeller shaft can be continuously cleaned by other cleaning devices after flowing to the impeller.
[0013] Further, the food-grade self-cleaning fan further comprises a mounting plate, the spraying port is mounted on the top of the fan volute through the mounting plate, and the mounting plate is detachably connected with the fan volute.
[0014] The technical effects achieved by the technical scheme are as follows: the mounting plate realizes the mounting and replacement of the spraying port, and different specifications of the spraying port can be replaced to realize different cleaning effects.
[0015] Further, the food-grade self-cleaning fan comprises a base provided with a volute mounting groove and a driving mounting table, the fan volute is arranged in the volute mounting groove, and the driving device is arranged on the driving mounting table.
[0016] The technical effects achieved by the technical scheme are as follows: the volute mounting groove realizes the positioning and mounting of the fan volute, and the driving mounting table realizes the positioning and mounting of the driving device, so that the impeller shaft can be drivingly connected with the driving device.
[0017] Further, the end face of the fan volute near the side of the driving mounting table has at least one first support rib, and the first support rib is obliquely supported on the side of the driving mounting table.
[0018] The technical effects achieved by the technical scheme are as follows: the first support rib is used to improve the strength of the end face of the fan volute; and the first support rib is abutted on the side of the driving mounting table to realize the positioning and mounting of the fan volute, so that the fan volute is prevented from rotating or sliding.
[0019] Further, the food-grade self-cleaning fan further comprises a protective net located on the side of the fan volute close to the driving mounting table; the impeller shaft has a transmission part extending out of the fan volute, and the protective net cover is arranged on the transmission part of the impeller shaft.
[0020] The technical effects achieved after adopting the technical scheme are that the protective net is used to avoid hand contact with the impeller shaft and injury, and also avoid foreign matter contact with the impeller shaft to cause damage to the impeller shaft.
[0021] Further, the end face of the fan volute close to the side of the driving mounting table has at least two second support ribs supported on the top of the driving mounting table; the protective net is matched with the second support ribs.
[0022] The technical effects achieved after adopting the technical scheme are that the second support ribs can support the fan volute on the driving mounting table, avoid axial forward and backward inclination of the fan volute, and improve the stability of the fan volute.
[0023] Further, the end face of the fan volute close to the side of the driving mounting table has a connecting rib connected between the two second support ribs; the protective net is detachably connected with the connecting rib.
[0024] The technical effects achieved after adopting the technical scheme are that the connecting rib is used to improve the supporting effect of the second support ribs on the fan volute, avoid bending or breaking of the second support ribs; and the protective net is positioned and installed through the second support ribs, fixed through the connecting rib, and avoids vibration of the protective net during operation of the food-grade self-cleaning fan.
[0025] In summary, the above-mentioned various technical schemes of the present application can have one or more of the following advantages or beneficial effects: i) the main powder impurities on the inner wall of the fan volute are blown off by the high-pressure gas of the main pipeline, and then the residual powder can be washed more thoroughly by the high-pressure cleaning liquid, thereby saving cleaning liquid; ii) the powder cleaned down is discharged from the waste discharge port at the bottom of the fan together with the sewage, and because the side surface of the volute is an arc surface, the sewage can flow to the waste discharge port, and the sewage is effectively discharged; iii) the protective net is used to avoid hand contact with the impeller shaft and injury, and also avoid foreign matter contact with the impeller shaft to cause damage to the impeller shaft, the connecting rib is used to improve the supporting effect of the second support ribs on the fan volute, avoid bending or breaking of the second support ribs, and the protective net is positioned and installed through the second support ribs. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 A perspective view of a food-grade self-cleaning fan is provided in the present utility model;
[0027] Figure 2 is a front view of a food-grade self-cleaning fan;
[0028] Figure 3 is a right view of a food-grade self-cleaning fan;
[0029] Figure 4 is another perspective view of a food-grade self-cleaning fan;
[0030] Figure 5 is Figure 4 is a partial enlarged view of area A;
[0031] Figure 6 is Figure 4 is a partial enlarged view of area B;
[0032] Figure 7 is a structural schematic view of a side spraying device.
[0033] BRIEF DESCRIPTION OF DRAWINGS
[0034] 100 - food-grade self-cleaning fan; 110 - fan volute; 111 - first support rib; 112 - second support rib; 113 - connecting rib; 114 - disassembly notch; 120 - driving device; 130 - impeller; 140 - spraying port; 150 - cleaning device; 151 - main pipeline; 152 - side pipeline; 160 - protective net; 170 - waste discharge port; 180 - base; 190 - coupling. DETAILED DESCRIPTION
[0035] The utility model discloses a food-grade self-cleaning fan for realizing the effect of automatic cleaning inside the fan.
[0036] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the drawings.
[0037] Referring to Figures 1-7 , the utility model provides a food-grade self-cleaning fan 100, food-grade self-cleaning fan 100 includes: fan volute 110, fan volute 110 has axial air inlet and side air outlet, and fan volute 110 bottom has waste discharge port 170;Cleaning device 150, cleaning device 150 is installed in fan volute 110, and cleaning device 150 includes main pipeline 151 and side pipeline 152, and main pipeline 151 is used for passing into gas, and side pipeline 152 is connected to main pipeline 151 side for passing into cleaning liquid;Impeller 130, impeller 130 is installed in fan volute 110, and the impeller shaft of impeller 130 is towards air inlet;Driving device 120, driving device 120 is used to drive impeller shaft rotation.
[0038] In the embodiment, the cleaning device 150 is used to clean the powder food attached to the inner wall of the fan volute 110. Specifically, the high-pressure gas in the main pipeline 151 is used to blow off the powder attached to the inner wall of the fan volute 110, the main pipeline 151 can make the airflow directly blow the inner wall to improve the blowing-off effect, and at the same time, the impeller 130 can rotate to realize the cleaning of the powder on the impeller 130, and the impeller 130 can be deeply cleaned without disassembly; after the main powder impurities on the inner wall of the fan volute 110 are blown off, the high-pressure cleaning liquid is introduced to wash away the residual powder more thoroughly, so that the cleaning liquid is saved because too much residual powder needs to be continuously cleaned.
[0039] In a specific embodiment, the cleaning device 150 is installed on the end face of the fan volute 110 and arranged around the impeller 130.
[0040] It should be noted that the cleaning device 150 can clean the other side end face of the fan volute 110, and the sewage flowing down from the upper part of the fan volute 110 will not be stagnated at the middle position, and the cleaning devices 150 at different heights continuously clean the sewage at different heights to improve the cleaning effect; the circumferentially arranged cleaning devices 150 can clean the air guide surface of the impeller 130, and the impeller 130 can be cleaned by the cleaning devices 150 of all end faces after one rotation, so that the cleaning effect is more thorough.
[0041] Preferably, the cleaning device 150 can be installed on the end face of the fan volute 110 close to the air inlet, or can be arranged on the end face of the fan volute 110 away from the air inlet. Further, the cleaning devices 150 on the two side end faces of the fan volute 110 are arranged in a staggered manner to avoid interference between the airflow or water flow of the cleaning devices 150.
[0042] In a specific embodiment, the main pipeline 151 is connected perpendicularly to the axial end face of the fan volute 110.
[0043] It should be noted that the main pipeline 151 and the end face are fixed, and the high-pressure gas passing through the main pipeline 151 can directly blow the other side end face and the impeller 130. For example, the main pipeline 151 is welded or connected by threads to the fan volute 110.
[0044] In a specific embodiment, the food-grade self-cleaning fan 100 further comprises: a spray port 140 arranged at the top of the fan volute 110.
[0045] It should be noted that the spray port 140 can clean the residual powder on the impeller 130 and the impeller shaft, and the cleaning liquid mixed with the powder on the impeller shaft can be continuously cleaned by other cleaning devices 150 after flowing to the impeller 130.
[0046] In one specific embodiment, the food-grade self-cleaning fan 100 further comprises a mounting plate, the spray nozzle 140 is mounted on the top of the fan volute 110 through the mounting plate, and the mounting plate is detachably connected with the fan volute 110.
[0047] It should be noted that the mounting plate realizes the installation and replacement of the spray nozzle 140, and facilitates the replacement of spray nozzles 140 of different specifications to achieve different cleaning effects. For example, the mounting plate is connected and fixed to the top of the fan volute 110 through screws on the side.
[0048] In one specific embodiment, the food-grade self-cleaning fan 100 comprises a base 180, the base 180 is provided with a volute mounting groove and a driving mounting table, the fan volute 110 is arranged in the volute mounting groove, and the driving device 120 is arranged on the driving mounting table.
[0049] It should be noted that the volute mounting groove realizes the positioning and installation of the fan volute 110, and the driving mounting table realizes the positioning and installation of the driving device 120, facilitating the transmission connection of the impeller shaft with the driving device 120. The driving device 120 is a motor.
[0050] Further, the impeller shaft and the output shaft of the motor are connected through a shaft coupling 190.
[0051] In one specific embodiment, the end face of the fan volute 110 near the side of the driving mounting table has at least one first support rib 111, and the first support rib 111 is inclined to support the side of the driving mounting table.
[0052] It should be noted that the first support rib 111 is used to improve the strength of the end face of the fan volute 110; after the first support rib 111 abuts against the side of the driving mounting table, the positioning and installation of the fan volute 110 is realized, avoiding the rotation or sliding of the fan volute 110.
[0053] For example, the first support rib 111 is arranged at an angle of 45 degrees on the side of the impeller shaft. The fan volute 110 is also provided with a reinforcing rib connected perpendicularly to the first support rib 111.
[0054] Further, the side of the fan volute 110 near the air inlet can also be provided with inclined and staggered reinforcing ribs to improve the strength of the other end face.
[0055] In one specific embodiment, the food-grade self-cleaning fan 100 further comprises a protective net 160, the protective net 160 is located on the side of the fan volute 110 near the driving mounting table; the impeller shaft has a transmission part extending out of the fan volute 110, and the protective net 160 is arranged on the transmission part of the impeller shaft.
[0056] It should be noted that the protective net 160 is used to avoid the hand from contacting the impeller shaft and being hurt, and also avoid foreign matters from contacting the impeller shaft to cause the impeller shaft to be damaged.
[0057] In a specific embodiment, the end face of the fan volute 110 close to the one side of the driving mounting table has at least two second supporting ribs 112, the second supporting ribs 112 are supported on the top of the driving mounting table; the protective net 160 is matched with the second supporting ribs 112.
[0058] It should be noted that the second supporting ribs 112 can support the fan volute 110 on the driving mounting table, avoid the fan volute 110 from being inclined axially forward and backward, and improve the stability of the fan volute 110.
[0059] In a specific embodiment, the end face of the fan volute 110 close to the one side of the driving mounting table has a connecting rib 113, the connecting rib 113 is connected between the two second supporting ribs 112; the protective net 160 is detachably connected with the connecting rib 113.
[0060] It should be noted that the connecting rib 113 is used to improve the supporting effect of the second supporting ribs 112 on the fan volute 110, avoid the second supporting ribs 112 from being bent or broken; and the protective net 160 is positioned and installed through the second supporting ribs 112, and is fixed through the connecting rib 113, so as to avoid the protective net 160 from vibrating when the food-grade self-cleaning fan 100 works.
[0061] Preferably, the bottom of the protective net 160 has an avoiding groove for avoiding the coupling 190.
[0062] Preferably, the connecting rib 113 has a detachable gap 114, specifically, the width of the connecting rib 113 is equivalent to the width of the top of the protective net 160, the installation effect of the protective net 160 is improved, and the detachable gap 114 on the connecting rib 113 can partially expose the top of the protective net 160, so as to facilitate the manual detachment or installation of the protective net 160.
[0063] Although the utility model discloses as above, the utility model is not limited to this. Any person skilled in the art, without departing from the spirit and scope of the utility model, can make various changes and modifications, therefore the protection scope of the utility model should be the range limited by the claims.
Claims
1. A food grade self-cleaning air mover characterized in that, The food-grade self-cleaning fan comprises: a fan volute having an axial air inlet and a lateral air outlet, the bottom of the fan volute having a waste outlet; a cleaning device mounted on the fan volute, the cleaning device comprising a main pipeline for passing in gas and a lateral pipeline connected to the main pipeline for passing in cleaning liquid; an impeller mounted in the fan volute, the impeller shaft of the impeller facing the air inlet; a driving device for driving the rotation of the impeller shaft.
2. The food grade self-cleaning air mover of claim 1, wherein, The cleaning device is mounted on the end face of the fan volute and arranged around the impeller.
3. The food grade self-cleaning air mover of claim 1, wherein, The main pipeline is connected perpendicularly to the axial end face of the fan volute.
4. The food grade self-cleaning air mover of claim 1, wherein, The food-grade self-cleaning fan further comprises: a spray opening provided on the top of the fan volute.
5. The food grade self-cleaning air mover of claim 4, wherein, The food-grade self-cleaning fan further comprises: a mounting plate, the spray opening being mounted on the top of the fan volute through the mounting plate, the mounting plate being detachably connected to the fan volute.
6. The food grade self-cleaning air mover of claim 1, wherein, The food-grade self-cleaning fan comprises: a base provided with a volute mounting groove and a driving mounting table, the fan volute being arranged in the volute mounting groove, and the driving device being arranged on the driving mounting table.
7. The food grade self-cleaning air mover of claim 6, wherein, The end face of the fan volute near the side of the driving mounting table has at least one first support rib, the first support rib being obliquely supported on the side of the driving mounting table.
8. The food grade self-cleaning air mover of claim 6, wherein, The food-grade self-cleaning fan further comprises: a protective net located on the side of the fan volute near the driving mounting table.
9. The food grade self-cleaning air mover of claim 8, wherein, The impeller shaft has a transmission part extending out of the fan volute, and the protective net cover is arranged on the transmission part of the impeller shaft. The end face of the fan volute near the side of the driving mounting table has at least two second support ribs, the second support ribs being supported on the top of the driving mounting table.
10. The food grade self-cleaning air mover of claim 9, wherein, The protective net cooperates with the second support ribs. The end face of the fan volute near the side of the driving mounting table has a connecting rib connected between the two second support ribs. The protective net is detachably connected to the connecting rib.