A fully automatic disinfection device and method for air inside a fermentation tank

Abstract

The present invention relates to the technical field of fermentation tank disinfection, and specifically to a fully automatic disinfection device and method for the air inside a fermentation tank, comprising a feed port arranged at the upper part of the fermentation tank; comprising a cleaning unit arranged in the fermentation tank, the cleaning unit comprising nozzles uniformly distributed in the fermentation tank around the axis of the fermentation tank, the nozzles of the nozzles uniformly distributed on the side walls of the nozzles, when cleaning, the nozzles rotate around their own axes, and at the same time the nozzles move along the height direction of the fermentation tank, the disinfectant sprayed by the nozzles forms a ring structure around the nozzles, when the cleaning unit performs cleaning, all the nozzles spray disinfectant at the same time, and the sprayed disinfectant completely covers the inner wall of the fermentation tank. The present invention ensures that the disinfectant can complete the flushing and cleaning of residual substances on the inner wall of the fermentation tank while disinfecting, thereby improving the disinfection effect, and the fermentation tank does not need to be disassembled when disinfecting.

Description

Technical Field

[0001] The invention relates to the technical field of fermentation tank disinfection, and in particular to a fully automatic disinfection device and method for the air inside a fermentation tank. Background Art

[0002] Since the fermentation tank will produce waste gas during fermentation, it is also necessary to consider the simultaneous disinfection of the air in the fermentation tank when disinfecting the fermentation tank. When the existing fermentation tank is disinfected, it is necessary to spray the tank body of the fermentation tank with disinfectant. The disinfectant can not only clean and disinfect the inner wall of the tank body of the fermentation tank, but also disinfect the air in the fermentation tank. Chinese patent CN215777791U discloses a disinfectant spraying device for sanitary cleaning. This document adjusts the height of the spraying device by setting an infusion handle and other structures to solve the problem that the existing disinfectant spraying device for sanitary cleaning is complicated to operate and inconvenient for staff to adjust, resulting in the device cannot be adjusted according to the height of the staff, and thus cannot be used by staff of different heights. However, the spraying device in this document can only perform unidirectional spraying treatment, and due to the particularity of the tank body, this device is not convenient for simultaneous spraying treatment of the inside and outside of the tank body.

[0003] Chinese patent CN220938619U discloses a disinfectant spraying device for a biological fermentation tank, comprising a base, a hydraulic rod is provided on the top of the base, a spraying mechanism is provided on the top of the hydraulic rod, a first motor is embedded inside the base, the top of the output end of the first motor extends to the outside of the top of the base, and the hydraulic rod is fixedly connected to the output end of the first motor; the spraying mechanism comprises a transmission box, the transmission box is fixedly connected to the top of the hydraulic rod, a second motor is provided on the top of the transmission box, a transmission shaft is fixedly connected to the output end of the second motor, the bottom end of the transmission shaft extends to the inside of the transmission box, a gear is provided inside the transmission box, the gear is fixedly sleeved on the outside of the transmission shaft, tooth plates are provided on the front and rear sides of the gear, the outer ends of the two tooth plates extend to the outside of the two sides of the transmission box respectively, the outer ends of the two tooth plates are fixedly connected to movable blocks, the two movable blocks are fixedly embedded with drain pipes, the bottom ends of the two drain pipes are fixedly connected to water outlet pipes, and the bottom ends of the two water outlet pipes are fixedly connected to spray heads.

[0004] Although the above scheme can clean the inside and outside of the fermentation tank, in actual use, some fermentation tanks do not need to be cleaned on the outside, but the cleanliness requirements for the inside of the fermentation tank are very high, and the above fermentation tanks are mostly sealed, and the existing cleaning device cannot penetrate into the fermentation tank for cleaning. The existing cleaning method is to directly pass the cleaning liquid into the fermentation tank, which cannot guarantee the cleaning effect of the injected disinfectant on the fermentation tank, and the consumption of the disinfectant is large. This is because the fermentation tanks are mostly cylindrical structures, and the disinfectant cannot impact the inner wall of the fermentation tank when injected, and thus cannot ensure that the residue on the inner wall of the fermentation tank is completely cleaned. Summary of the invention

[0005] In view of the above problems, a fully automatic disinfection device and method for the air inside a fermentation tank is provided. A cleaning unit is provided so that the cleaning unit cleans and disinfects the inner wall of the fermentation tank. When the fermentation tank is cleaned and disinfected, the cleaning unit provided in the fermentation tank is started, and all the nozzles in the cleaning unit spray disinfectant at the same time. The disinfectant sprayed by the nozzle forms a working plane, and the working plane completely covers the cross section of the fermentation tank on the working plane. The nozzle can rotate around its own axis when spraying the disinfectant, and the nozzle can also gradually descend along the height direction of the fermentation tank. During the process of the nozzle descending, During the operation, the nozzle sprays disinfectant. When the nozzle is in the rising state, the nozzle stops spraying disinfectant. The nozzle moves back and forth in the fermentation tank along the height direction of the fermentation tank. The nozzle rotating around its own axis can avoid the blind spot when the nozzle sprays disinfectant, ensuring that the nozzle can completely disinfect the fermentation tank. At the same time, the spraying range of all nozzles can completely cover the inner wall of the fermentation tank, and the disinfectant sprayed by the nozzle has a certain impact force, ensuring that the disinfectant can complete the flushing and cleaning of the residual substances on the inner wall of the fermentation tank while disinfecting, thereby improving the disinfection effect, and there is no need to remove the fermentation tank during disinfection.

[0006] In order to solve the problems of the prior art, the present invention provides a fully automatic disinfection device for the air inside a fermentation tank, comprising a feed port arranged at the upper part of the fermentation tank; comprising a cleaning unit arranged in the fermentation tank, the cleaning unit comprising nozzles uniformly distributed in the fermentation tank around the axis of the fermentation tank, the nozzles of the nozzles are uniformly distributed on the side walls of the nozzles, when cleaning is performed, the nozzles rotate around their own axes, and at the same time the nozzles move along the height direction of the fermentation tank, the disinfectant sprayed by the nozzles forms a ring structure around the nozzles, when the cleaning unit is cleaning, all the nozzles spray disinfectant at the same time, and the range of the sprayed disinfectant completely covers the inner wall of the fermentation tank.

[0007] Preferably, the cleaning unit includes a lifting shell that moves along the height direction of the fermentation tank, the lifting shell is an annular structure, the nozzle is arranged on the lifting shell and moves synchronously with the lifting shell, the lifting shell has an upper stop position and a lower stop position in its moving stroke, when the cleaning unit is not in the cleaning state, the lifting shell is in the upper stop position, when the cleaning unit is in the cleaning state, the lifting shell moves from the upper stop position to the lower stop position from top to bottom, and at this time the nozzle sprays the disinfectant.

[0008] Preferably, an annular cavity is stored in the lifting shell, and the disinfectant flows in the annular cavity. Nozzles are provided on the inner and outer ring sides of the lifting shell, and a second rotating blade is provided on the upper part of the nozzle. One side of the second rotating blade extends into the annular cavity. When the disinfectant in the annular cavity flows, the second rotating blade is driven to rotate by the flowing disinfectant.

[0009] Preferably, a partition that can separate the annular cavity is provided in the annular cavity, and a liquid inlet and a liquid outlet are provided on both sides of the partition respectively. The disinfectant enters the annular cavity from the liquid inlet and is discharged from the liquid outlet after circling the annular cavity.

[0010] Preferably, a lifting unit is provided on the lifting shell to drive the lifting shell to move along the height direction of the fermentation tank. The lifting unit includes a pump body and a threaded rod. The threaded rod vertically penetrates the lifting shell and cooperates with the lifting shell thread. The pump body is arranged at the upper end of the threaded rod. The disinfectant flows through the pump body before entering the annular cavity. The disinfectant passing through the pump body drives the pump body, so that the pump body drives the threaded rod to rotate.

[0011] Preferably, a reversing valve connected to the liquid outlet is arranged at the upper part of the lifting shell, and the reversing valve has two output ports, and an overflow valve is arranged on one of the output ports.

[0012] Preferably, a connecting pipe for supplying water to the nozzle is provided between the lifting shell and the nozzle, the connecting pipe takes water from the lifting shell, a switch valve is provided on the connecting pipe, the switch valve is in an open state when the lifting shell descends, and the switch valve is in a closed state when the lifting shell ascends.

[0013] Preferably, a scraper plate is provided on the upper part of the lifting shell and is lifted and lowered synchronously with the lifting shell, and a transmission unit is provided on the threaded rod. When the threaded rod rotates, the threaded rod drives the scraper plate to rotate around the axis of the fermentation tank through the transmission unit, and the end of the scraper plate is always in contact with the inner wall of the fermentation tank.

[0014] Preferably, a water sprayer is provided on the inner wall of the fermentation tank, and the water sprayer is in an annular structure. When the lifting shell reaches the upper stop position, the water sprayer sprays the disinfectant, and the sprayed disinfectant impacts the scraper plate.

[0015] The present invention also relates to a fully automatic method for disinfecting the air inside a fermenter, which adopts a fully automatic device for disinfecting the air inside a fermenter. When the fermenter is cleaned and disinfected, a cleaning unit arranged in the fermenter is started, and all nozzles in the cleaning unit spray disinfectant at the same time. The disinfectant sprayed by the nozzle forms a working plane, and the working plane completely covers the cross-section of the fermenter on the working plane. The nozzle can rotate around its own axis when spraying the disinfectant, and the nozzle can also gradually descend along the height direction of the fermenter. During the descent of the nozzle, the nozzle sprays the disinfectant, and when the nozzle is in the ascending state, the nozzle stops spraying the disinfectant, and the nozzle moves back and forth in the fermenter along the height direction of the fermenter.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a cleaning unit so that the cleaning unit cleans and disinfects the inner wall of the fermenter. When the fermenter is cleaned and disinfected, the cleaning unit provided in the fermenter is started, and all nozzles in the cleaning unit spray disinfectant at the same time. The disinfectant sprayed by the nozzle forms a working plane, and the working plane completely covers the cross section of the fermenter on the working plane. The nozzle can rotate around its own axis when spraying the disinfectant, and the nozzle can also gradually descend along the height direction of the fermenter. In the process of the nozzle descending, the nozzle sprays the disinfectant, and when the nozzle is in the ascending state, the nozzle stops spraying the disinfectant. The nozzle moves back and forth in the fermenter along the height direction of the fermenter. The nozzle rotating around its own axis can avoid the blind area when the nozzle sprays the disinfectant, and ensures that the nozzle can completely disinfect the fermenter. At the same time, the spray range of all nozzles can completely cover the inner wall of the fermenter, and the disinfectant sprayed by the nozzle has a certain impact force, which ensures that the disinfectant can also complete the flushing and cleaning of residual substances on the inner wall of the fermenter while disinfecting, thereby improving the disinfection effect, and there is no need to dismantle the fermenter when disinfecting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a fully automatic air disinfection device inside a fermentation tank.

[0019] Figure 2 It is a side view of a fully automatic sterilizing device for the air inside a fermentation tank.

[0020] Figure 3 It is a fully automatic disinfection device for the air inside the fermentation tank. Figure 2 Schematic cross-sectional view at AA in the middle.

[0021] Figure 4 The present invention is a cutaway stereoscopic schematic diagram of a fully automatic air disinfection device inside a fermentation tank.

[0022] Figure 5It is a fully automatic disinfection device for the air inside the fermentation tank. Figure 4 A local enlarged schematic diagram of point B in the middle.

[0023] Figure 6 A three-dimensional diagram of a fully automatic air disinfection device inside a fermentation tank without the fermentation tank Figure 1 .

[0024] Figure 7 A three-dimensional diagram of a fully automatic air disinfection device inside a fermentation tank without the fermentation tank Figure 2 .

[0025] Figure 8 It is a fully automatic disinfection device for the air inside the fermentation tank. Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0026] Fig. 9 It is a fully automatic disinfection device for the air inside the fermentation tank. Figure 7 A local enlarged schematic diagram of point D in the middle.

[0027] Fig.10 The present invention is a three-dimensional schematic diagram of a fully automatic air disinfection device inside a fermentation tank after removing a threaded rod, a limit rod and a fermentation tank.

[0028] Fig.11 It is a fully automatic disinfection device for the air inside the fermentation tank. Fig.10 A partial enlarged schematic diagram of point E in the middle.

[0029] Fig.12 The invention discloses a cutaway stereoscopic schematic diagram of a fully automatic air disinfection device inside a fermentation tank, with a threaded rod, a limit rod and a fermentation tank removed.

[0030] Fig.13 It is a fully automatic disinfection device for the air inside the fermentation tank. Fig.12 A partial enlarged schematic diagram of point F in the middle.

[0031] The numbers in the figure are:

[0032] 1. Fermentation tank; 11. Feed inlet; 111. Extension pipe; 112. First rotating blade; 113. Rotating shaft; 114. Cleaning plate; 12. Discharge outlet; 2. Cleaning unit; 21. Sprinkler; 22. Lifting shell; 221. Annular cavity; 222. Liquid inlet; 223. Liquid outlet; 23. Rotating unit; 231. Second rotating blade; 232. Rotating shell; 24. Partition plate; 25. Lifting shell Unit; 251, pump body; 252, threaded rod; 253, limit rod; 254, first bellows; 255, second bellows; 256, water pump; 26, reversing valve; 27, overflow valve; 28, connecting pipe; 281, switch valve; 3, scraper unit; 31, scraper plate; 32, transmission unit; 321, gear; 322, slide groove; 323, bump; 324, gear ring; 33, sprinkler. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Reference Figure 1-Figure 3 : A fully automatic disinfection device for the air inside a fermentation tank, comprising a feed inlet 11 arranged at the upper part of the fermentation tank 1; comprising a cleaning unit 2 arranged in the fermentation tank 1, the cleaning unit 2 comprising nozzles 21 uniformly distributed in the fermentation tank around the axis of the fermentation tank 1, the nozzles of the nozzles 21 are uniformly distributed on the side walls of the nozzles 21, when cleaning, the nozzles 21 rotate around their own axes, and at the same time, the nozzles 21 move along the height direction of the fermentation tank 1, the disinfectant sprayed by the nozzles 21 forms a ring structure around the nozzles 21, when the cleaning unit 2 is cleaning, all the nozzles 21 spray disinfectant at the same time, and the range of the sprayed disinfectant completely covers the inner wall of the fermentation tank 1.

[0035] A discharge port 12 is provided at the bottom of the fermentation tank 1, and the bottom of the fermentation tank 1 is a funnel-shaped structure. After the fermentation tank 1 completes fermentation, the material is discharged from the discharge port 12. The bottom of the funnel-shaped structure of the fermentation tank 1 is easier to discharge the material. After the fermentation tank 1 is used, due to the particularity of the use environment, some fermentation tanks 1 are not convenient to disassemble and clean, and the fermentation tank 1 needs to be cleaned by the cleaning unit 2. The specific working principle is as follows: when the fermentation tank 1 is cleaned and disinfected, the cleaning unit 2 arranged in the fermentation tank 1 is started, and all the nozzles 21 in the cleaning unit 2 spray the disinfectant at the same time. The disinfectant sprayed by the nozzle 21 forms a working plane, and the working plane completely covers the cross-section of the fermentation tank 1 on the working plane, and the nozzle 21 can rotate around its own axis when spraying the disinfectant. The nozzle 21 moves along the height direction of the fermentation tank 1, and the nozzle 21 can also gradually descend along the height direction of the fermentation tank 1. During the descent of the nozzle 21, the nozzle 21 sprays the disinfectant. When the nozzle 21 is in the ascending state, the nozzle 21 stops spraying the disinfectant. The nozzle 21 moves back and forth in the fermentation tank 1 along the height direction of the fermentation tank 1. The nozzle 21 rotating around its own axis can avoid the blind spot when the nozzle 21 sprays the disinfectant, ensuring that the nozzle 21 can completely disinfect the fermentation tank 1. At the same time, the spraying range of all the nozzles 21 can completely cover the inner wall of the fermentation tank 1, and the disinfectant sprayed by the nozzle 21 has a certain impact force, ensuring that the disinfectant can complete the flushing and cleaning of the residual substances on the inner wall of the fermentation tank 1 while disinfecting, thereby improving the disinfection effect, and there is no need to remove the fermentation tank 1 during disinfection.

[0036] Reference Figure 3 and Figure 4 : The cleaning unit 2 includes a lifting shell 22 that moves along the height direction of the fermentation tank 1. The lifting shell 22 is an annular structure. The nozzle 21 is arranged on the lifting shell 22 and moves synchronously with the lifting shell 22. The lifting shell 22 has an upper stop position and a lower stop position on its moving stroke. When the cleaning unit 2 is not in the cleaning state, the lifting shell 22 is in the upper stop position. When the cleaning unit 2 is in the cleaning state, the lifting shell 22 moves from the upper stop position to the lower stop position from top to bottom, and at this time, the nozzle 21 sprays the disinfectant.

[0037] When the lifting shell 22 reaches the lower stop position, the lifting shell 22 rises again from the lower stop position, and the lifting shell 22 rises along the height direction of the fermentation tank 1. During the rising process of the lifting shell 22, the nozzle 21 stops spraying the disinfectant. Since the lifting shell 22 is an annular structure, and the axis of the lifting shell 22 is colinear with the axis of the feed port 11, the axis of the extension tube 111 and the feed port 11 are fixedly arranged on the feed port 11, and the extension tube 111 extends from the feed port 11 to the fermentation tank 1, and the lower end of the extension tube 111 extends to the lower part of the lifting shell 22 when it is at the upper stop position. 1 is rotatably provided with a first rotating blade 112 at the upper part, a rotating shaft 113 is fixedly provided at the lower end of the first rotating blade 112 along the axis of the first rotating blade 112, a plurality of cleaning plates 114 are provided, and the cleaning plates 114 are evenly fixedly provided on the rotating shaft 113 around the axis of the rotating shaft 113. When the nozzle 21 sprays the disinfectant, the feed port 11 will also be synchronously injected with the disinfectant. It is worth noting that the disinfectant injected into the fermentation tank 1 from the feed port 11 will not fill the inside of the fermentation tank 1. Its main purpose is to flush and clean the inner wall of the extension tube 111. The purpose of setting the extension tube 111 is to guide the fermented product to correctly enter the fermentation tank 1. If the extension tube 111 is not provided, when the fermented product enters the fermentation tank 1 from the feed inlet 11, the fermented product is easy to fall on the lifting shell 22, which makes it impossible to clean the upper part of the lifting shell 22, and there is a blind spot for cleaning, thereby reducing the disinfection effect in the fermentation tank 1. After the extension tube 111 is provided, the above situation can be avoided. After the fermented product enters the extension tube 111 from the feed inlet 11, it falls into the fermentation tank 1 under the guidance of the extension tube 111. Since the bottom of the extension tube 111 The lifting shell 22 is located at the lower part of the lifting shell 22 when it is in the upper stop position. When the fermented material is put into the fermentation tank 1, the lifting shell 22 is in the upper stop position, so that the fermented material can be prevented from falling on the upper part of the lifting shell 22. When the cleaning unit 2 cleans the fermentation tank 1, the disinfectant is injected into the fermentation tank 1 from the feed port 11, so that the first rotating blade 112 in the extension tube 111 is driven to rotate, and then the rotating shaft 113 fixedly connected to the first rotating blade 112 is driven, and finally the cleaning plate 114 rotates with the rotating shaft 113 and scrapes off the residue on the inner wall of the extension tube 111.

[0038] Reference Fig.11 and Fig.12 An annular cavity 221 is provided in the lifting shell 22, and disinfectant flows in the annular cavity 221. A nozzle 21 is provided on the inner ring and outer ring sides of the lifting shell 22. A second rotating blade 231 is provided on the upper part of the nozzle 21. One side of the second rotating blade 231 extends into the annular cavity 221. When the disinfectant in the annular cavity 221 flows, the second rotating blade 231 is driven to rotate by the flowing disinfectant.

[0039] The cleaning unit 2 includes a rotating unit 23, and the rotating unit 23 is provided with multiple groups, each group is provided with two rotating units 23, and the two rotating units 23 in each group are respectively arranged on the outer ring side and the inner ring side of the lifting shell 22. The rotating unit 23 includes a rotating shell 232, and the rotating shell 232 is arranged on the inner ring side wall or the outer ring side wall of the lifting shell 22, that is, the rotating shell 232 in the rotating unit 23 arranged on the outer ring side of the rotating shell 232 is arranged on the outer ring side wall of the rotating shell 232, and the rotating shell 232 in the rotating unit 23 arranged on the inner ring side of the rotating shell 232 is arranged on the inner ring side wall of the rotating shell 232. The rotating shell 232 is connected to the lifting shell 22, and the second rotating blade 231 is rotatably arranged in the rotating shell 232. When the disinfectant in the lifting shell 22 starts to flow, the flowing disinfectant can drive the second rotating blade 231 to rotate.

[0040] Reference Fig.13 A partition 24 is provided in the annular cavity 221 to separate the annular cavity 221. A liquid inlet 222 and a liquid outlet 223 are provided on both sides of the partition 24. The disinfectant enters the annular cavity 221 from the liquid inlet 222 and is discharged from the liquid outlet 223 after circling the annular cavity 221.

[0041] Reference Figure 3-Figure 7 and Fig.11 A lifting unit 25 is provided on the lifting shell 22 for driving the lifting shell 22 to move along the height direction of the fermentation tank 1. The lifting unit 25 includes a pump body 251 and a threaded rod 252. The threaded rod 252 vertically penetrates the lifting shell 22 and is threadedly matched with the lifting shell 22. The pump body 251 is arranged at the upper end of the threaded rod 252. The disinfectant first flows through the pump body 251 before entering the annular cavity 221. The disinfectant passing through the pump body 251 drives the pump body 251, so that the pump body 251 drives the threaded rod 252 to rotate.

[0042] The lifting unit 25 also includes a limit rod 253, a first bellows 254, a second bellows 255 and a switch valve 281. The limit rod 253 is arranged parallel to the axial direction of the threaded rod 252. The limit rod 253 penetrates the lifting shell 22 and slides with the lifting shell 22 along the height direction of the fermentation tank 1. The limit rod 253 is used to limit the lifting shell 22 when the threaded rod 252 rotates. The two ends of the first bellows 254 are respectively connected to the liquid inlet 222 and the output end of the pump body 251. The end of the second bellows 255 is arranged on the liquid outlet 223. The water pump 256 is arranged on the pump body 2 On the input end side of 51, the water pump 256 can pump the disinfectant into the pump body 251. After passing through the pump body 251, the disinfectant reaches the liquid inlet 222 of the lifting shell 22 through the first bellows 254, so that the disinfectant can enter the annular cavity 221 for circulation and finally be discharged from the liquid outlet 223. When the disinfectant enters the pump body 251, the pump body 251 is driven by the flowing disinfectant, and the output end of the pump body 251 rotates, thereby causing the threaded rod 252 to rotate. The lifting shell 22 begins to descend under the action of the threaded rod 252, and the first bellows 254 and the second bellows 255 are stretched synchronously.

[0043] Reference Fig. 9 A reversing valve 26 connected to the liquid outlet 223 is arranged at the upper part of the lifting shell 22. The reversing valve 26 has two output ports, and a relief valve 27 is arranged on one of the output ports.

[0044] Two ends of the second bellows 255 are respectively communicated with the reversing valve 26 and the liquid outlet 223 .

[0045] Reference Fig.11 A connecting pipe 28 for supplying water to the nozzle 21 is provided between the lifting shell 22 and the nozzle 21. The connecting pipe 28 takes water from the lifting shell 22. A switch valve 281 is provided on the connecting pipe 28. The switch valve 281 is in an open state when the lifting shell 22 descends, and is in a closed state when the lifting shell 22 ascends.

[0046] Since the partition 24 is provided in the annular cavity 221, the partition 24 partitions the annular cavity 221, so that the annular cavity 221 forms an annular pipeline, and the disinfectant enters the annular cavity 221 from the liquid inlet 222 and flows out of the annular cavity 221 from the liquid outlet 223, or the disinfectant flows into the annular cavity 221 from the liquid outlet 223 and flows out of the annular cavity 221 from the liquid inlet 222. When the lifting shell 22 descends from the upper stop position, the cleaning unit 2 is in the cleaning state. In the normal state, the water pump 256 draws the disinfectant into the pump body 251 and enters the annular cavity 221 through the first bellows 254. At this time, the reversing valve 26 is connected with the relief valve 27, and the switch valve 281 is opened. The relief valve 27 provides pressure for the disinfectant in the annular cavity 221. When the disinfectant flows in the annular cavity 221, the disinfectant can supply water to the nozzle 21 through the connecting pipe 28. At the same time, the setting of the relief valve 27 can ensure that the annular cavity 221 is The disinfectant is in a flowing state, ensuring that the second rotating blade 231 in the rotating unit 23 can be driven to rotate, so that the nozzle 21 can rotate around its own axis when spraying the disinfectant, avoiding the blind area of ​​disinfection. When the lifting shell 22 rises from the lower stop position, the switch valve 281 is in a closed state, the reversing valve 26 is reversed, the reversing valve 26 and the overflow valve 27 are no longer connected, and the water pump 256 reversely pumps out the disinfectant, that is, the water pump 256 extracts the disinfectant in the pump body 251, and the disinfectant in the second bellows 255 flows back into the annular cavity 221 from the liquid outlet 223. Since the switch valve 281 is closed, the disinfectant flowing into the annular cavity 221 will not be sprayed out from the nozzle 21, but all flows into the first bellows 254 through the liquid inlet 222 and enters the pump body 251, so that the output end of the pump body 251 rotates in the opposite direction, and then the threaded rod 252 rotates in the opposite direction, so that the lifting shell 22 is realized.

[0047] Reference Figure 3 , Figure 5 , Figure 8 , Fig.10 and Fig.11 A scraping plate 31 is arranged on the upper part of the lifting shell 22 and is lifted and lowered synchronously with the lifting shell 22. A transmission unit 32 is arranged on the threaded rod 252. When the threaded rod 252 rotates, the threaded rod 252 drives the scraping plate 31 to rotate around the axis of the fermentation tank 1 through the transmission unit 32, and the end of the scraping plate 31 is always in contact with the inner wall of the fermentation tank 1.

[0048] A scraping unit 3 capable of scraping the inner wall of the fermentation tank 1 is arranged on the upper part of the cleaning unit 2. The scraping unit 3 includes a scraping plate 31 and a transmission unit 32. The transmission unit 32 includes a gear 321, a slide groove 322, a protrusion 323 and a gear ring 324. The slide groove 322 is opened on the side wall of the threaded rod 252 along the extension direction of the threaded rod 252. The gear 321 is sleeved on the periphery of the threaded rod 252. The protrusion 323 is fixedly arranged on the inner ring side wall of the gear 321. The protrusion 323 and the slide groove 322 are arranged along the extension direction of the threaded rod 252. The gear ring 324 is rotatably arranged in the fermentation tank 1 along the axis of the lifting shell 22 with sliding fit, the gear 321 is located on the inner ring side of the gear ring 324, the gear 321 and the gear ring 324 are meshed with each other, and the scraper plate 31 is evenly fixed on the periphery of the gear ring 324 around the axis of the gear ring 324. When the threaded rod 252 rotates, the threaded rod 252 can drive the gear 321 to rotate synchronously, and then the gear ring 324 is driven to rotate by the gear 321, and the scraper plate 31 arranged on the gear ring 324 can scrape off the residue on the inner wall of the fermentation tank 1.

[0049] Reference Figure 4 A water sprayer 33 is arranged on the inner wall of the fermentation tank 1. The water sprayer 33 has an annular structure. When the lifting shell 22 reaches the upper stop position, the water sprayer 33 sprays the disinfectant, and the sprayed disinfectant impacts the scraping plate 31.

[0050] The scraping plate 31 is cleaned by the water sprayer 33 to ensure that no residue is attached to the scraping plate 31 after the scraping work is completed.

[0051] Reference Figure 1-Figure 13 : The present invention also relates to a fully automatic disinfection method for the air inside a fermentation tank, which adopts a fully automatic disinfection device for the air inside a fermentation tank. When the fermentation tank 1 is cleaned and disinfected, the cleaning unit 2 arranged in the fermentation tank 1 is started, and all the nozzles 21 in the cleaning unit 2 spray disinfectant at the same time. The disinfectant sprayed by the nozzle 21 forms a working plane, and the working plane completely covers the cross-section of the fermentation tank 1 on the working plane. The nozzle 21 can rotate around its own axis when spraying the disinfectant, and the nozzle 21 can also gradually descend along the height direction of the fermentation tank 1. During the descent of the nozzle 21, the nozzle 21 sprays the disinfectant. When the nozzle 21 is in the ascending state, the nozzle 21 stops spraying the disinfectant, and the nozzle 21 moves back and forth along the height direction of the fermentation tank 1.

[0052] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A fully automatic sterilizing device for the air inside a fermentation tank, comprising a feed inlet (11) arranged at the upper part of the fermentation tank (1); It is characterized in that The cleaning unit (2) comprises a cleaning unit (2) arranged in a fermentation tank (1), the cleaning unit (2) comprising nozzles (21) uniformly distributed in the fermentation tank around the axis of the fermentation tank (1), the nozzles of the nozzles (21) being uniformly distributed on the side walls of the nozzles (21), and when cleaning, the nozzles (21) rotate around their own axis and move along the height direction of the fermentation tank (1), and the disinfectant sprayed by the nozzles (21) forms a ring structure around the nozzles (21), and when the cleaning unit (2) is cleaning, all the nozzles (21) spray the disinfectant at the same time, and the sprayed disinfectant completely covers the inner wall of the fermentation tank (1); The cleaning unit (2) comprises a lifting shell (22) that moves along the height direction of the fermentation tank (1); the lifting shell (22) is an annular structure; the nozzle (21) is arranged on the lifting shell (22) and moves synchronously with the lifting shell (22); the lifting shell (22) has an upper stop position and a lower stop position in its moving stroke; when the cleaning unit (2) is not in a cleaning state, the lifting shell (22) is in the upper stop position; when the cleaning unit (2) is in a cleaning state, the lifting shell (22) moves from the upper stop position to the lower stop position from top to bottom, and at this time, the nozzle (21) sprays disinfectant; An annular cavity (221) is stored in the lifting shell (22), and disinfectant flows in the annular cavity (221). Spray heads (21) are provided on both the inner ring and outer ring sides of the lifting shell (22), and a second rotating blade (231) is provided on the upper part of the spray head (21). One side of the second rotating blade (231) extends into the annular cavity (221). When the disinfectant in the annular cavity (221) flows, the second rotating blade (231) is driven to rotate by the flowing disinfectant; A partition (24) capable of partitioning the annular cavity (221) is provided in the annular cavity (221), and a liquid inlet (222) and a liquid outlet (223) are provided on both sides of the partition (24), respectively. The disinfectant enters the annular cavity (221) from the liquid inlet (222), and is discharged from the liquid outlet (223) after circling the annular cavity (221) for one cycle. A lifting unit (25) is provided on the lifting shell (22) for driving the lifting shell (22) to move along the height direction of the fermentation tank (1). The lifting unit (25) comprises a pump body (251) and a threaded rod (252). The threaded rod (252) vertically penetrates the lifting shell (22) and is threadably matched with the lifting shell (22). The pump body (251) is provided at the upper end of the threaded rod (252). The disinfectant first flows through the pump body (251) before entering the annular cavity (221). The disinfectant passing through the pump body (251) drives the pump body (251), so that the pump body (251) drives the threaded rod (252) to rotate.

2. A fully automatic sterilizing device for the air inside a fermentation tank according to claim 1, characterized in that: A reversing valve (26) in communication with the liquid outlet (223) is arranged at the upper portion of the lifting shell (22). The reversing valve (26) has two output ports, one of which is provided with a relief valve (27).

3. A fully automatic sterilizing device for the air inside a fermentation tank according to claim 2, characterized in that: A connecting pipe (28) for supplying water to the nozzle (21) is provided between the lifting shell (22) and the nozzle (21); the connecting pipe (28) takes water from the lifting shell (22); a switch valve (281) is provided on the connecting pipe (28); the switch valve (281) is in an open state when the lifting shell (22) descends, and is in a closed state when the lifting shell (22) ascends.

4. The fully automatic air disinfection device for the fermentation tank according to claim 1, characterized in that: A scraper plate (31) is arranged on the upper part of the lifting shell (22) and is lifted and lowered synchronously with the lifting shell (22). A transmission unit (32) is arranged on the threaded rod (252). When the threaded rod (252) rotates, the threaded rod (252) drives the scraper plate (31) to rotate around the axis of the fermentation tank (1) through the transmission unit (32). The end of the scraper plate (31) is always in contact with the inner wall of the fermentation tank (1).

5. A fully automatic sterilizing device for the air inside a fermentation tank according to claim 4, characterized in that: A water sprayer (33) is arranged on the inner wall of the fermentation tank (1). The water sprayer (33) is in an annular structure. When the lifting shell (22) reaches the upper stop position, the water sprayer (33) sprays disinfectant, and the sprayed disinfectant impacts the scraper plate (31).

6. A method for fully automatic disinfection of air inside a fermenter, using a fully automatic disinfection device for air inside a fermenter according to any one of claims 1 to 5, characterized in that: When the fermentation tank (1) is cleaned and disinfected, the cleaning unit (2) arranged in the fermentation tank (1) is started, and all the nozzles (21) in the cleaning unit (2) spray disinfectant at the same time. The disinfectant sprayed by the nozzles (21) forms a working plane, and the working plane completely covers the cross section of the fermentation tank (1) on the working plane. The nozzles (21) can rotate around their own axes when spraying the disinfectant, and the nozzles (21) can also gradually descend along the height direction of the fermentation tank (1). During the process of the nozzles (21) descending, the nozzles (21) spray disinfectant. When the nozzles (21) are in the process of ascending, the nozzles (21) stop spraying disinfectant, and the nozzles (21) move back and forth in the fermentation tank (1) along the height direction of the fermentation tank (1).

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