Steam cleaning and sterilizing device for fermentation tank

Abstract

The steam cleaning and sterilizing device comprises a tank wall, a plurality of mounting holes are formed in the tank wall, a positioning sleeve is fixed to the inner side of each mounting hole, and a connecting sinking groove is formed in the inner side of the front end of each positioning sleeve. A steam guide pipe slides on the inner side of the positioning sleeve in the length direction and the radial direction of the positioning sleeve, the positioning sleeve is in interference fit with the steam guide pipe through a sealing piece, a plurality of steam nozzles communicated with an inner cavity of the steam guide pipe are formed in the circumferential side of the front end of the steam guide pipe, and a sealing disc is fixed to the front end of the steam guide pipe. When the steam cleaning device needs to be withdrawn, the spline shaft is provided with an electromagnetic coil or connected with the coupling end of the coil, that is, the spline shaft can form magnetic attraction force on the ball type spline shaft sleeve after being powered on, so that the sealing disc retracts into the connecting sinking groove and then forms threaded tightening and embedded plugging with the connecting sinking groove, the structure is reasonable, and the practicability is high. The operation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of fermentation equipment, in particular to a steam cleaning and sterilizing device for a fermentation tank. Background Art

[0002] During biological fermentation, a variety of organic matter, biological agents, and bacterial strains are added to the fermentation tank. After fermentation is completed, a large amount of residue remains, and the tank needs to be cleaned. Some current fermentation tanks are equipped with steam cleaning, which has high temperature and high pressure, and has a good cleaning effect. The high temperature also has a sterilization effect. However, the current steam cleaning and sterilization devices have disadvantages. The steam pipe and steam nozzle are connected to the inside of the tank. During the fermentation period, the steam generating device is in a closed state. The material in the tank can easily enter the steam pipe and steam nozzle, causing blockage and corrosion. Even if a valve is provided on the steam pipe, the material can still enter the steam nozzle and a section of the steam pipe. Especially when there is a certain pressure in the tank, this backflow blockage is very common.

[0003] The patent document with announcement number CN220116530U discloses a steam cleaning and sterilization device for a fermentation tank, which comprises a fermentation tank and a steam pipe; a hole for inserting the steam pipe is provided on the tank wall of the fermentation tank; a vertically connected sleeve with the same inner diameter is provided on the outside of the hole; the steam pipe passes through the sleeve and the hole and is slidably connected; a steam port is provided on the side wall of the front end of the steam pipe, and a front sealing head is provided at the end; a rear sealing plate is provided at the rear end of the steam pipe; a return spring with elastic connection is provided between the rear sealing plate and the tank wall; an oil push top is provided behind the rear sealing plate; the end of the steam pipe passes through the rear sealing plate and is connected to the steam generating device through a metal hose.

[0004] The above device still has some shortcomings in practical application. For example, during the use of the fermentation tank, even after the front sealing head is in contact with the tank wall, it is difficult to ensure that the material in the tank will not enter the hole and the steam pipe through the peripheral gap of the front sealing head, and there is a lack of effective interference fit and sealing effect. Based on this, a steam cleaning and sterilization device for a fermentation tank is provided to address the above problems. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] Therefore, the purpose of the present invention is to provide a steam cleaning and sterilization device for a fermentation tank, so as to solve the problem that when the steam cleaning and sterilization device for a fermentation tank in the prior art proposed in the above background technology is in use, it is difficult to ensure that the material in the tank will not enter the hole and the steam pipe through the peripheral gap of the front sealing head after the front sealing head is in contact with the tank wall, and there is a lack of effective interference fit and sealing effect.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a steam cleaning and sterilizing device for a fermentation tank, comprising a tank wall, the tank wall having a plurality of mounting holes, a positioning sleeve fixed inside the inner side of each mounting hole, a connecting recessed groove inside the front end of the positioning sleeve, a steam conduit slidingly provided on the inner side of the positioning sleeve along the length direction and radial direction thereof, and an interference fit formed between the positioning sleeve and the steam conduit via a sealing member, a plurality of steam nozzles connected to the inner cavity of the steam conduit on the circumference of the front end thereof, a sealing disk fixed to the front end of the steam conduit, and a rotary progressive device connected to the rear end of the steam conduit;

[0008] The outer side of the sealing disk and the inner side of the connecting groove are threadedly matched, and the steam conduit and the sealing disk are driven to move back and forth during rotation by a rotary progressive device.

[0009] As a preferred solution of the steam cleaning and sterilization device for fermentation tanks described in the present invention, the inner rear section of the positioning sleeve is further provided with a sealing sleeve sleeved on the outer side wall of the steam conduit, and the sealing sleeve is made of rubber.

[0010] As a preferred solution of a steam cleaning and sterilization device for a fermentation tank described in the utility model, the inner side of the connecting trough has an internal thread, the outer peripheral side of the sealing disk has an external thread, and there is an interference fit between the connecting trough and the sealing disk, and the diameter of the sealing disk is larger than the outer diameter of the steam duct.

[0011] As a preferred solution of the steam cleaning and sterilization device for a fermentation tank described in the present invention, one side of the rear end of the steam conduit also has an air inlet connected to its inner cavity, and the air inlet is connected to the steam generating device through a metal hose.

[0012] As a preferred solution of a steam cleaning and sterilization device for a fermentation tank described in the utility model, the rotary progressive device includes a ball spline sleeve coaxially fixed to the rear end of the steam duct, a spline shaft connected to the inner side and rear end of the ball spline sleeve, and a servo motor installed on the outside of the fermentation tank and with the output end connected to the rear end of the spline shaft.

[0013] As a preferred solution of the steam cleaning and sterilizing device for a fermentation tank described in the utility model, a mounting bracket for fixing a servo motor is further provided on the outer side of the tank wall.

[0014] Compared with the prior art, the beneficial effect of the present invention is that the steam cleaning and sterilization device for fermentation tanks has a front sealing head that fits the inner wall of the tank body, and the sealing structure has a multi-circuit interference fit and a better sealing effect, which can effectively prevent the material in the tank from entering the hole and the steam pipe through the gap around the sealing head during the use of the fermentation tank, thereby solving the problem that the steam cleaning device of the fermentation tank in the prior art is prone to blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall external structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the device and the tank body of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model when steam is output.

[0018] In the figure: 100, tank wall; 200, positioning sleeve; 201, connecting trough; 210, sealing sleeve; 300, steam duct; 301, steam nozzle; 302, air inlet; 310, sealing disk; 400, rotary progressive device; 410, ball spline shaft sleeve; 420, spline shaft; 430, servo motor; 500, mounting bracket. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0022] Figure 1-Figure 3 The following is a schematic diagram of the entire structure of a steam cleaning and sterilizing device for a fermentation tank according to the present invention. Figure 1-Figure 3, a steam cleaning and sterilization device for a fermentation tank in this embodiment includes a tank wall 100, which has a plurality of mounting holes on the tank wall 100, a positioning sleeve 200 is fixed on the inner side of each mounting hole, and a connecting groove 201 is provided on the inner side of the front end of the positioning sleeve 200, a steam conduit 300 is slidably provided on the inner side of the positioning sleeve 200 along its length and radial direction, and an interference fit is formed between the positioning sleeve 200 and the steam conduit 300 through a sealing member, a plurality of steam nozzles 301 connected to its inner cavity are provided on the circumference of the front end of the steam conduit 300, a sealing disk 310 is fixed on the front end of the steam conduit 300, and a rotary progressive device 400 is further connected to the rear end of the steam conduit 300; wherein, the outer side of the sealing disk 310 and the inner side of the connecting groove 201 are threadedly matched, and the steam conduit 300 and the sealing disk 310 are driven to move back and forth during rotation by the rotary progressive device 400.

[0023] The inner rear section of the positioning sleeve 200 is also equipped with a rubber sealing sleeve 210 that fits over the outer wall of the steam conduit 300. Multiple steam output ports are provided on the tank wall 100 and the sidewalls of the fermenter, each corresponding to a steam conduit 300. These multiple steam conduits 300 are connected to a steam generator via metal hoses. Specifically, when the steam conduit 300 rotates or moves back and forth, the sealing sleeve 210 ensures a tight seal between the positioning sleeve 200 and the steam conduit 300, achieving a follow-up compensating seal and ensuring an airtight isolation between the tank interior and exterior.

[0024] The connecting groove 201 has internal threads on its inner side, while the sealing disc 310 has external threads on its outer periphery. The connecting groove 201 and the sealing disc 310 form an interference fit, with the diameter of the sealing disc 310 being larger than the outer diameter of the steam conduit 300. As can be appreciated, this threaded connection provides a multi-circuit interference fit and a more effective seal than the conventional method of contacting the front sealing head with the inner wall of the tank. This effectively prevents material from entering the fermenter through the gaps around the sealing head and into the hole and steam conduit during use, thus resolving the problem of clogging of the steam cleaning device in conventional fermenters. The steam conduit 300 also has an air inlet 302 on one side of its rear end, connected to its inner cavity. This air inlet 302 is connected to the steam generator via a metal hose. The air inlet 302 allows steam to enter the steam conduit 300 smoothly and be discharged through the steam nozzle 301. Furthermore, the metal hose ensures that the gas pipeline does not squeeze or block the steam conduit as it rotates with the steam conduit 300. The rotary progressive device 400 includes a ball spline sleeve 410 coaxially fixed to the rear end of the steam duct 300, a spline shaft 420 connected to the inner side and rear end of the ball spline sleeve 410, and a servo motor 430 installed on the outside of the fermentation tank and with its output end connected to the rear end of the spline shaft 420. During use, for example, when steam cleaning is required inside the fermentation tank, the servo motor 430 drives the spline shaft 420 to rotate, and the spline shaft 420 drives the ball spline sleeve 410, the steam conduit 300 and the sealing disk 310 to rotate synchronously through the spline cooperation. During this process, a thread release is formed between the sealing disk 310 and the connecting sink 201, and a linear driving force is formed, thereby driving the steam conduit 300 and the ball spline sleeve 410 to move forward synchronously until the sealing disk 310 is separated from the connecting sink 201. Steam can be sprayed into the interior of the tank through the air inlet 301, thereby realizing the steam cleaning operation. When it needs to be retracted, the spline shaft 420 is equipped with an electromagnetic coil or a connecting coil coupling end, that is, after power is turned on, the spline shaft 420 will form a magnetic attraction on the ball spline sleeve 410, so that the sealing disk 310 retracts and connects to the sink 201 and forms a threaded tightening and interlocking seal with it. The structure is reasonable and the operation is simple.

[0025] Furthermore, a mounting bracket 500 for fixing the servo motor 430 is provided on the outside of the tank wall 100. The servo motor 430 is positioned firmly by the mounting bracket 500, and the servo motor 430 is a detachable structure for easy maintenance and replacement.

[0026] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A steam cleaning and sterilization device for a fermentation tank, characterized in that: The invention comprises a tank wall (100), wherein the tank wall (100) has a plurality of mounting holes, a positioning sleeve (200) is fixed inside each mounting hole, a connecting groove (201) is provided on the inner side of the front end of the positioning sleeve (200), a steam conduit (300) is slidably provided on the inner side of the positioning sleeve (200) along its length direction and radial direction, and an interference fit is formed between the positioning sleeve (200) and the steam conduit (300) through a sealing member, a plurality of steam nozzles (301) are provided on the circumference of the front end of the steam conduit (300) and are communicated with its inner cavity, a sealing disk (310) is fixed on the front end of the steam conduit (300), and a rotary progressive device (400) is further connected to the rear end of the steam conduit (300); The outer side of the sealing disc (310) and the inner side of the connecting groove (201) are threadedly matched, and the steam conduit (300) and the sealing disc (310) are driven to move forward and backward during rotation by the rotating progressive device (400).

2. A steam cleaning and sterilizing device for a fermentation tank according to claim 1, characterized in that: The inner rear section of the positioning sleeve (200) is further provided with a sealing sleeve (210) sleeved on the outer side wall of the steam conduit (300), and the sealing sleeve (210) is made of rubber.

3. The steam cleaning and sterilizing device for a fermentation tank according to claim 1, characterized in that: The inner side of the connecting groove (201) has an internal thread, the outer peripheral side of the sealing disc (310) has an external thread, and the connecting groove (201) and the sealing disc (310) are in an interference fit, and the diameter of the sealing disc (310) is larger than the outer diameter of the steam conduit (300).

4. The steam cleaning and sterilizing device for a fermentation tank according to claim 1, characterized in that: The steam conduit (300) further has an air inlet (302) on one side of its rear end, which is connected to its inner cavity, and the air inlet (302) is connected to the steam generating device via a metal hose.

5. The steam cleaning and sterilizing device for a fermentation tank according to claim 1, characterized in that: The rotary progressive device (400) comprises a ball spline sleeve (410) coaxially fixed to the rear end of the steam conduit (300), a spline shaft (420) connected to the inner side and rear end of the ball spline sleeve (410), and a servo motor (430) installed outside the fermentation tank and with its output end connected to the rear end of the spline shaft (420).

6. The steam cleaning and sterilizing device for a fermentation tank according to claim 1, characterized in that: A mounting frame (500) for fixing and mounting the servo motor (430) is also provided on the outside of the tank wall (100).

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