Automatic pressure relief mechanism of fermentation tank

Abstract

The utility model discloses an automatic pressure relief mechanism of a fermentation tank, which belongs to the technical field of fermentation tanks and comprises a fermentation tank body, the top of the fermentation tank body is fixedly sleeved with a connecting part, the top end of the connecting part is fixedly connected with a filtering part, and the top end of the filtering part is fixedly connected with an exhaust part. A plurality of exhaust holes are formed in the side face of the exhaust part, a protection mechanism is arranged on the outer side of the exhaust part, and a spring is fixedly connected to the top face of an inner cavity of the exhaust part. According to the utility model, the filter screen is used for filtering solid substances in gas, airflow is used for driving the wind wheel to rotate, the wind wheel is used for driving the transmission shaft, the collecting box and the scraper blade to rotate, the scraper blade is used for scraping the solid substances filtered from the bottom surface of the filter screen, and the scraped solid substances are stored in the collecting box; therefore, the filtering effect of the filter screen is ensured, and the filter screen is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of fermentation tanks, in particular to an automatic pressure relief mechanism for a fermentation tank. Background Art

[0002] Fermentation tank refers to the device used for microbial fermentation in industry. Its main body is generally a cylindrical cylinder made of stainless steel plate with a volume of 1m 3 To hundreds of meters 3 In the design and processing, attention should be paid to the strict and reasonable structure. A certain amount of gas will be produced in the fermentation tank during the fermentation process. In order to avoid excessive pressure in the fermentation tank, a pressure relief device is required.

[0003] After searching, the utility model patent with announcement number CN216404352U discloses an automatic pressure relief enzyme fermentation tank, including a fermentation tank body; an automatic pressure relief mechanism is arranged on the top of the fermentation tank body; the automatic pressure relief mechanism is composed of a connecting part, a filtering part and an exhaust part which are interconnected; the bottom end of the connecting part is connected to the top of the fermentation tank body, and the top of the connecting part is connected to the bottom of the filtering part; the filtering part is large in the middle and small at both ends, and more than one layer of filter plates are arranged in the inner cavity of the filtering part, and a number of liquid-repelling holes are discretely arranged on the filter plates; a compression spring is arranged in the upper part of the inner cavity of the exhaust part, the top end of the compression spring is fixedly connected to the inner top wall of the exhaust part, the bottom end of the compression spring is connected to a plug part and the outer circumferential surface of the plug part is in contact with the inner side wall of the exhaust part; an exhaust hole is arranged on the side wall of the exhaust part; the fermentation tank can effectively avoid gas entrained with liquid and solid matter to block the exhaust hole during pressure relief, thereby ensuring normal pressure relief.

[0004] However, the above patent has the following shortcomings: if the filter plate is not cleaned in time after filtering a lot of solid matter, it will affect the pressure relief and exhaust, and the exhaust hole is connected to the inside of the exhaust part, which easily causes external dust to enter the exhaust part from the exhaust hole, affecting the up and down movement of the plug. For this reason, we propose an automatic pressure relief mechanism for a fermentation tank. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide an automatic pressure relief mechanism for a fermentation tank.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] The top of the filter press is fixedly connected to the filter press, and the top end of the filter press is fixedly connected to the exhaust port, and a plurality of exhaust holes are provided on the side of the exhaust port. A protective mechanism is arranged on the outside of the exhaust port, and a spring is fixedly connected to the top surface of the inner cavity of the exhaust port, and a piston plate is fixedly connected to the bottom end of the spring, and the side surface of the piston plate is in contact with the inner wall of the exhaust port. A filter screen is fixedly connected to the inner cavity of the filter screen, a bearing is fixedly connected to the middle part of the filter screen, and a transmission shaft is fixedly connected to the inner side of the bearing, a wind wheel is fixedly connected to the top end of the transmission shaft, and a rotating seat is fixedly connected to the bottom end of the transmission shaft, and a collecting box is installed on the rotating seat, and a scraper is fixedly connected to the top of the inner cavity of the collecting box, and the top end of the scraper is in contact with the bottom surface of the filter screen, and one end of the collecting box is in contact with the inner wall of the filter.

[0008] As a preferred solution of the utility model, the protection mechanism includes a protection tube movably sleeved on the outside of the exhaust part, and a plurality of sliding rods are fixedly connected to the top surface of the inner cavity of the protection tube, and the bottom ends of the plurality of sliding rods are respectively movably sleeved on the inner cavity of the exhaust part and fit with the top surface of the piston plate, and the inner side surface of the protection tube fits with the outer side surface of the exhaust part.

[0009] As a preferred solution of the utility model, a slot is provided on the end surface of the rotating seat, a socket is fixedly connected to the bottom surface of the collecting box, and the socket is movably sleeved into the inner cavity of the slot.

[0010] As a preferred solution of the utility model, scraping slopes are respectively provided on both sides of the top of the scraper.

[0011] As a preferred solution of the utility model, a vent hole is provided on the top surface of the exhaust portion.

[0012] As a preferred solution of the utility model, a sealing door is hinged on the outer side of the filter part.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the utility model, a filter is used to filter solid matter in the gas, and the airflow is used to drive the wind wheel to rotate, and the wind wheel drives the transmission shaft, the collection box and the scraper to rotate, and the scraper is used to scrape the solid matter filtered from the bottom of the filter. The scraped solid matter is stored in the collection box, thereby ensuring the filtering effect of the filter and avoiding clogging of the filter, thereby improving its practicality.

[0015] (2) In the utility model, when the pressure is not released, the exhaust hole is blocked by the protective tube on the outside of the exhaust part to prevent external dust, debris, etc. from entering the exhaust part through the exhaust hole. When the pressure needs to be released, the piston plate is pushed by the gas to drive the sliding rod and the protective tube to move upward synchronously, thereby exposing the exhaust hole for pressure relief. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the sealing door of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the collection box of the utility model;

[0020] Figure 5 It is a schematic diagram of the disassembly of the collecting box and the rotating seat of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Fermentation tank body; 2. Connection part; 3. Filter part; 4. Exhaust part; 5. Spring; 6. Piston plate; 7. Exhaust hole; 8. Protection mechanism; 9. Filter screen; 10. Bearing; 11. Transmission shaft; 12. Wind wheel; 13. Rotating seat; 14. Collecting box; 15. Scraper; 16. Slot; 17. Socket; 18. Scraping slope; 19. Protection tube; 20. Sliding rod; 21. Vent hole; 22. Sealing door. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Example:

[0027] See also Figure 1-5 A fermentation tank automatic pressure relief mechanism comprises a fermentation tank body 1, a connection part 2 is fixedly sleeved on the top of the fermentation tank body 1, a filter part 3 is fixedly connected to the top of the connection part 2, an exhaust part 4 is fixedly connected to the top of the filter part 3, a plurality of exhaust holes 7 are opened on the side of the exhaust part 4, a protective mechanism 8 is arranged on the outside of the exhaust part 4, a spring 5 is fixedly connected to the top surface of the inner cavity of the exhaust part 4, a piston plate 6 is fixedly connected to the bottom end of the spring 5, and the side of the piston plate 6 is in contact with the inner wall of the exhaust part 4. A filter screen 9 is fixedly sleeved on the inner cavity of the filter part 3, a bearing 10 is fixedly sleeved on the middle part of the filter screen 9, a transmission shaft 11 is fixedly sleeved on the inner side of the bearing 10, a wind wheel 12 is fixedly connected to the top end of the transmission shaft 11, a rotating seat 13 is fixedly connected to the bottom end of the transmission shaft 11, a collecting box 14 is installed on the rotating seat 13, a scraper 15 is fixedly connected to the top of the inner cavity of the collecting box 14, the top end of the scraper 15 is in contact with the bottom surface of the filter screen 9, and one end of the collecting box 14 is in contact with the inner wall of the filter part 3.

[0028] In this embodiment, the initial position of the piston plate 6 is located below the exhaust hole 7 .

[0029] For details, please refer to Figure 1 and Figure 2 The protection mechanism 8 includes a protection tube 19 movably sleeved on the outside of the exhaust part 4, and a plurality of slide rods 20 are fixedly connected to the top surface of the inner cavity of the protection tube 19. The bottom ends of the plurality of slide rods 20 are respectively movably sleeved to the inner cavity of the exhaust part 4 and fit with the top surface of the piston plate 6, and the inner side surface of the protection tube 19 fits with the outer side surface of the exhaust part 4.

[0030] In this embodiment, the outer bottom end of the protective tube 19 is used to shield the exhaust hole 7 to prevent external debris, dust, etc. from entering the inner cavity of the exhaust part 4. In addition, the protective tube 19 and the sliding rod 20 are made of lightweight materials and will not affect the movement of the piston plate 6.

[0031] For details, please refer to Figure 5A slot 16 is formed on the end surface of the rotating seat 13 , and a socket 17 is fixedly connected to the bottom surface of the collecting box 14 , and the socket 17 is movably sleeved into the inner cavity of the slot 16 .

[0032] In this embodiment, the collection box 14 is installed on the rotating base 13 through the cooperation of the slot 16 and the socket 17 .

[0033] For details, please refer to Figure 4 The two sides of the top of the scraper 15 are respectively provided with scraping slopes 18.

[0034] In this embodiment, the scraping slope 18 is used to ensure that the top of the scraper 15 can scrape the solid matter on the bottom surface of the filter screen 9.

[0035] For details, please refer to Figure 2 A vent hole 21 is provided on the top surface of the exhaust portion 4.

[0036] In this embodiment, the upper part of the inner cavity of the exhaust portion 4 and the inner cavity of the protective cylinder 19 are connected through the vent hole 21. When the piston plate 6 moves upward, the gas in the upper part of the inner cavity of the exhaust portion 4 enters the inner cavity of the protective cylinder 19 through the vent hole 21, ensuring that the piston plate 6 and the protective cylinder 19 can move smoothly and avoid being affected by negative pressure.

[0037] For details, please refer to Figure 3 A sealing door 22 is hinged on the outer side of the filter part 3.

[0038] In this embodiment, the height of the sealing door 22 is matched with the height of the collecting box 14. The collecting box 14 on the rotating seat 13 can be pulled out by opening the sealing door 22 so as to clean the fixed substances collected in the collecting box 14. In addition, a lock body is provided on the sealing door 22 so as to close the sealing door 22 on the outside of the filter part 3.

[0039] Working principle: When in use, when the air pressure in the fermentation tank body 1 reaches a certain level, the gas in the inner cavity of the fermentation tank body 1 enters the inner cavity of the exhaust part 4 from the connecting part 2 and the filtering part 3, and the gas pushes the piston plate 6 to move upward. When the piston plate 6 moves upward, it drives the sliding rod 20 and the protective cylinder 19 to move upward synchronously. When the piston plate 6 moves to the top of the exhaust hole 7, the protective cylinder 19 moves synchronously to the upper part of the exhaust hole 7. At this time, the excess gas is discharged from the exhaust hole 7, so that the fermentation tank body 1 is automatically depressurized. When the pressure relief is completed, the elastic force of the spring 5 drives the piston plate 6 to reset, and at this time the protective cylinder 19 continues to move to the outside of the exhaust hole 7 to block it.

[0040] In addition, when the gas flows from the filter part 3, the filter screen 9 is used to filter the solid matter in the gas. In addition, the airflow drives the wind wheel 12 to rotate. The rotation of the wind wheel 12 drives the transmission shaft 11, the rotating seat 13, the collecting box 14 and the scraper 15 to rotate synchronously. The scraper 15 is used to scrape the solid matter filtered from the bottom surface of the filter screen 9, and the scraped solid matter is stored in the collecting box 14, thereby ensuring the filtering effect of the filter screen 9 and avoiding clogging of the filter screen 9.

[0041] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. An automatic pressure relief mechanism for a fermentation tank, comprising a fermentation tank body (1), characterized in that: The top of the fermentation tank body (1) is fixedly connected with a connecting portion (2), the top of the connecting portion (2) is fixedly connected with a filter portion (3), the top of the filter portion (3) is fixedly connected with an exhaust portion (4), a side of the exhaust portion (4) is provided with a plurality of exhaust holes (7), a protective mechanism (8) is provided on the outside of the exhaust portion (4), a spring (5) is fixedly connected to the top surface of the inner cavity of the exhaust portion (4), a piston plate (6) is fixedly connected to the bottom end of the spring (5), the side of the piston plate (6) is in contact with the inner wall of the exhaust portion (4), the inner cavity of the filter portion (3) is fixedly connected with a connecting portion (2), ... A filter screen (9) is provided, a bearing (10) is fixedly sleeved in the middle of the filter screen (9), a transmission shaft (11) is fixedly sleeved on the inner side of the bearing (10), a wind wheel (12) is fixedly connected to the top end of the transmission shaft (11), a rotating seat (13) is fixedly connected to the bottom end of the transmission shaft (11), a collection box (14) is installed on the rotating seat (13), a scraper (15) is fixedly connected to the top of the inner cavity of the collection box (14), the top end of the scraper (15) is in contact with the bottom surface of the filter screen (9), and one end of the collection box (14) is in contact with the inner wall of the filter part (3).

2. The automatic pressure relief mechanism for a fermentation tank according to claim 1, characterized in that: The protection mechanism (8) comprises a protection tube (19) movably sleeved on the outside of the exhaust portion (4); a plurality of slide bars (20) are fixedly connected to the top surface of the inner cavity of the protection tube (19); the bottom ends of the plurality of slide bars (20) are movably sleeved on the inner cavity of the exhaust portion (4) and fit with the top surface of the piston plate (6); and the inner side surface of the protection tube (19) fits with the outer side surface of the exhaust portion (4).

3. The automatic pressure relief mechanism for a fermentation tank according to claim 1, characterized in that: The end surface of the rotating seat (13) is provided with a slot (16), the bottom surface of the collecting box (14) is fixedly connected with a socket (17), and the socket (17) is movably sleeved into the inner cavity of the slot (16).

4. The automatic pressure relief mechanism for a fermentation tank according to claim 1, characterized in that: Scraping slopes (18) are respectively arranged on both sides of the top end of the scraper (15).

5. The automatic pressure relief mechanism for a fermentation tank according to claim 1, characterized in that: A vent hole (21) is provided on the top surface of the exhaust portion (4).

6. The automatic pressure relief mechanism for a fermentation tank according to claim 1, characterized in that: A sealing door (22) is hingedly connected to the outer side of the filter portion (3).

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