Pressure adjusting device for fermentation tank

Abstract

The utility model belongs to the technical field of fermentation tank pressure regulation, and particularly relates to a fermentation tank pressure regulation device which comprises a tank body, a control mechanism is arranged on one side of the tank body, an inflation mechanism is arranged on the bottom side of the control mechanism, a pressure relief mechanism is arranged on the top side of the tank body, the control mechanism comprises a supporting plate, an air cylinder is fixed to the top side of the supporting plate, a first spring is fixedly connected between a circular plate and a fixing plate, and a metal plate is fixed to the top end of the circular plate. The top side of the top plate connects the direct-current power source and the controller into a disconnection circuit through cooperation of a wire, a second spring is fixedly connected between the rubber plug and the air conveying pipe, if the pressure is lower than a set value, the first spring pulls the round rod to contract, the wire is disconnected, and the controller controls the inflation mechanism to conduct inflation; and a second spring pulls a trapezoidal rubber plug to be tightly attached to the bottom side of the air cylinder, so that the air conveying pipe can only be inflated in a one-way mode, and the problem of air leakage after an existing adjusting device is used for a long time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fermentation tank pressure regulation, in particular to a fermentation tank pressure regulating device. Background Art

[0002] The equipment used for microbial fermentation in industry is called a fermenter. The main body of the fermenter is made of stainless steel plates and is cylindrical in shape. Its inner structure is tight. In order to ensure normal fermentation production in the fermenter, a pressure regulating device is required to keep the inner pressure within an appropriate range.

[0003] A pressure regulating device for a fermentation tank with announcement number CN216378217U is based on a tank body. A first rotating rod is rotatably connected to the center position of the top inner side of the tank body through a bearing. A second rotating rod is arranged on the bottom side of the first rotating rod. A plurality of air vents are provided on the circumferential surface of the top side of the second rotating rod, and the air vents are connected to the inner side of the second rotating rod. A connecting rod is fixed on the circumferential surface of the bottom end of the first rotating rod. The regulating device drives the piston to move up and down according to the pressure change inside the tank body. When the pressure is too high, it moves to the top side of the pressure relief pipe for pressure relief. When the pressure is too low, the piston drives the movable box to descend, so that the second air inlet hole coincides with the first air inlet hole, and air is filled into the tank body through the air pump to realize the function of regulating the pressure inside the tank body.

[0004] There is still a problem in the above-mentioned pressure regulating device for a fermentation tank. After long-term use, the contact position between the movable box and the sleeve is prone to wear, causing gas leakage inside the fermentation tank, resulting in the fermentation tank being unable to be used normally. Therefore, a fermentation tank pressure regulating device is proposed. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art, after long-term use, the contact position between the movable box and the sleeve of the regulating device on the market is prone to wear, resulting in gas leakage inside the fermentation tank, causing the fermentation tank to be unable to be used normally. The utility model proposes a fermentation tank pressure regulating device.

[0006] The technical solution adopted by the utility model to solve its technical problem is: a fermentation tank pressure regulating device described in the utility model includes a tank body; a control mechanism is arranged on one side of the tank body, an inflation mechanism is arranged on the bottom side of the control mechanism, a pressure relief mechanism is arranged on the top side of the tank body, and a support plate is fixed on the circumferential surface of the bottom side of the tank body.

[0007] Preferably, the control mechanism includes a support plate, a cylinder is fixed on the top side of the support plate, a fixing plate is fixed on the circumferential surface of the tank body, a round rod is slidably installed on the inner side of the cylinder, a round plate is fixed on the top end of the round rod, a first spring is fixedly connected between the round plate and the fixing plate, a metal plate is fixed on the top end of the round plate, a top plate is fixed on the circumferential surface of the top side of the tank body, a DC power supply and a controller are connected to the top side of the top plate through a wire to form a disconnected circuit, an air supply pipe is fixedly connected to the bottom side of the cylinder through the support plate, a rubber plug is buckled on the bottom end of the inner side of the cylinder, a second spring is fixedly connected between the rubber plug and the air supply pipe, the bottom end of the inner side of the cylinder is connected to the inner side of the tank body through a conduit, the round rod is slidably inserted in the center position of the fixing plate, a shell is fixedly installed on the bottom side of the tank body, and the structure of the rubber plug can prevent the gas inside from leaking before and after the tank body is filled with gas.

[0008] Preferably, the inflation mechanism includes a shell, an air pump is fixed on the inside of the shell, the controller is connected to the air pump signal, a waterproof breathable membrane is fixed on the inside of the shell on one side of the air pump, an activated carbon filter is fastened to one end of the shell, the activated carbon filter is located on one side of the waterproof breathable membrane, the bottom end of the air pipe passes through the shell and is fixedly connected to the air delivery end of the air pump, a cylinder is fixed on the top side of the tank body, and the structure of the filter and the waterproof breathable membrane can filter out impurities and water vapor in the air to prevent them from affecting the fermentation of materials inside the fermentation tank.

[0009] Preferably, the pressure relief mechanism includes a cylinder, a conical piston is slidably installed on the inner side of the cylinder, an adjusting plate is slidably installed on the top of the inner side of the cylinder, and a third spring is fixedly connected between the adjusting plate and the conical piston, a threaded rod is fixed on the top of the adjusting plate, and the threaded rod is slidably inserted in the top of the cylinder, a turntable is rotatably installed on the top of the cylinder, and the turntable is rotatably connected to the threaded rod, an exhaust port is opened on the circumferential surface of the bottom side of the cylinder, a servo motor is fixed on the bottom side of the tank body, a stirring shaft is fixed on the output end of the servo motor through the tank body, and a bracket is fixed on the bottom end of the tank body, and the pressure required for pressure relief can be adjusted according to actual use through the cooperation of the turntable and the threaded rod, so that the fermentation tank can be used more flexibly.

[0010] The utility model is beneficial in that:

[0011] 1. The utility model adopts a structural design of a fermentation tank pressure regulating device and sets a control mechanism. During the fermentation process, if the pressure is lower than the set value, the first spring pulls the round rod to contract, so that the wire is disconnected. At this time, the controller controls the inflation mechanism to inflate, and the second spring pulls the trapezoidal rubber plug tightly against the bottom side of the cylinder, so that the gas pipe can only be inflated in one direction, preventing the tank from leaking during use, and solving the problem of gas leakage after the existing regulating device is used for a long time.

[0012] 2. The utility model adopts the structural design of a fermentation tank pressure regulating device. By setting an inflation mechanism, when the pressure inside the tank body is too low, the controller controls the air pump to operate, and air is drawn in through one end of the shell. An activated carbon filter and a waterproof breathable membrane are used to filter out impurities in the air. Then, the air is transported to the inside of the tank body through the air pipe through the cylinder until the pressure inside the tank body reaches the set value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure;

[0015] Figure 2 It is a side view of the three-dimensional structure of the control mechanism;

[0016] Figure 3 It is a front view of the three-dimensional structure of the inflation mechanism;

[0017] Figure 4 It is a cross-sectional view of the three-dimensional structure of the pressure relief mechanism;

[0018] Figure 5 It is a schematic diagram of the overall main view three-dimensional structure.

[0019] In the figure: 1, tank body; 101, bracket; 2, support plate; 3, cylinder; 4, round rod; 5, round plate; 6, fixing plate; 7, first spring; 8, metal plate; 9, top plate; 10, DC power supply; 11, controller; 12, wire; 13, air pipe; 14, rubber plug; 15, second spring; 16, shell; 17, air pump; 18, waterproof and breathable membrane; 19, activated carbon filter; 20, servo motor; 21, stirring shaft; 22, cylinder; 23, top conical piston; 24, adjustment plate; 25, third spring; 26, threaded rod; 27, turntable; 28, exhaust port; 29, insulation shell. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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.

[0021] See also Figure 1-4 As shown, a fermentation tank pressure regulating device comprises a tank body 1; a control mechanism is arranged on one side of the tank body 1, an air charging mechanism is arranged on the bottom side of the control mechanism, a pressure relief mechanism is arranged on the top side of the tank body 1, and a support plate 2 is fixed on the circumferential surface of the bottom side of the tank body 1;

[0022] The control mechanism includes a support plate 2, a cylinder 3 is fixed on the top side of the support plate 2, a fixing plate 6 is fixed on the circumferential surface of the tank body 1, a round rod 4 is slidably installed on the inner side of the cylinder 3, a round plate 5 is fixed on the top of the round rod 4, a first spring 7 is fixedly connected between the round plate 5 and the fixing plate 6, a metal plate 8 is fixed on the top of the round plate 5, a top plate 9 is fixed on the circumferential surface of the top side of the tank body 1, a DC power supply 10 and a controller 11 are connected to a disconnect circuit through a wire 12 on the top side of the top plate 9, an air supply pipe 13 is fixedly connected to the bottom side of the cylinder 3 through the support plate 2, a rubber plug 14 is buckled on the bottom end of the inner side of the cylinder 3, a second spring 15 is fixedly connected between the rubber plug 14 and the air supply pipe 13, the inner bottom end of the cylinder 3 is communicated with the inner side of the tank body 1 through a conduit, the round rod 4 is slidably inserted in the center position of the fixing plate 6, A shell 16 is fixedly installed on the bottom side of the tank body 1; during operation, when the existing regulating device encounters a problem of gas leakage after long-term use, through the structure of the control mechanism, during the fermentation process, the pressure inside the tank body 1 is the same as the pressure inside the cylinder 3. At this time, the inner round rod 4 extends out, so that the round plate 5 contacts the bottom side of the top plate 9, so that the wire 12 is connected with the cooperation of the metal plate 8, so that the DC power supply 10 and the controller 11 form a closed circuit. At this time, the controller 11 controls the inflation mechanism to stop running, and the first spring 7 is in a stretched state. If the pressure is lower than the set value, the first spring 7 pulls the round rod 4 to contract, so that the wire 12 is disconnected. At this time, the controller 11 controls the inflation mechanism to inflate, and the second spring 15 pulls the trapezoidal rubber plug 14 to be close to the bottom side of the cylinder 3, so that the gas pipe 13 can only be inflated in one direction, to prevent the tank body 1 from leaking during use.

[0023] See also Figure 3As shown, the inflation mechanism includes a shell 16, an air pump 17 is fixed on the inner side of the shell 16, a waterproof breathable membrane 18 is fixed on the inner side of the shell 16 on one side of the air pump 17, an activated carbon filter 19 is buckled on one end of the shell 16, and the activated carbon filter 19 is located on one side of the waterproof breathable membrane 18, the bottom end of the air supply pipe 13 passes through the shell 16 and is fixedly connected to the air supply end of the air pump 17, and a cylinder 22 is fixed on the top side of the tank body 1; when working, when impurities are easily mixed into the inflation process and the fermentation is affected, through the structure of the inflation mechanism, when the pressure inside the tank body 1 is too low, the controller 11 controls the air pump 17 to run, and air is drawn in through one end of the shell 16, and the activated carbon filter 19 and the waterproof breathable membrane 18 filter out impurities in the air, and then the air supply pipe 13 delivers air to the inside of the tank body 1 through the cylinder 3 until the pressure inside the tank body reaches the set value.

[0024] See also Figure 4 As shown, the pressure relief mechanism includes a cylinder 22, a conical piston 23 is slidably installed inside the cylinder 22, an adjusting plate 24 is slidably installed on the top of the inner side of the cylinder 22, and a third spring 25 is fixedly connected between the adjusting plate 24 and the conical piston 23, a threaded rod 26 is fixed on the top of the adjusting plate 24, and the threaded rod 26 is slidably inserted in the top of the cylinder 22, a turntable 27 is rotatably installed on the top of the cylinder 22, and the turntable 27 is rotatably connected to the threaded rod 26, an exhaust port 28 is opened on the circumferential surface of the bottom side of the cylinder 22, a servo motor 20 is fixed on the bottom side of the tank body 1, and a stirring shaft 21 is fixed on the output end of the servo motor 20 through the tank body 1, and the bottom of the tank body 1 A bracket 101 is fixed at the end; when working, when encountering the problem that the discharged gas is easy to contact with the spring and cause the spring to rust during the use of the existing pressure relief structure, the turntable 27 is rotated through the structure of the pressure relief mechanism, so that it drives the adjusting plate 24 to move up and down inside the cylinder 22 through the threaded rod 26, thereby changing the pressure required for pressure relief. When the pressure is too high, it pushes the top conical piston 23 to slide upward inside the cylinder 22 until the exhaust port 28 is connected with the inner side of the tank body 1, thereby exhausting the gas. When the pressure reaches the set value, the third spring 25 pulls the top conical piston 23 down, thereby closing the exhaust port 28. In addition, the third spring 25 is in a closed environment during use and is not easy to be rusted and damaged.

[0025] See also Figure 5 As shown, a heat-insulating shell 29 is buckled on the top side of the top plate 9, and the heat-insulating shell 29 is buckled on the top side of the DC power supply 10 and the controller 11; during operation, when the working environment temperature of the fermentation tank is high and the control equipment is easily damaged, the DC power supply 10 and the controller 11 are separated from the external environment through the structure of the heat-insulating shell 29 to prevent them from being overheated and damaged in a high temperature environment.

[0026] Working principle: The equipment used for microbial fermentation in industry is called a fermentation tank. The main body of the fermentation tank is made of stainless steel plate and is cylindrical in shape. Its inner structure is tight. In order to ensure the normal fermentation production of the fermentation tank, a pressure regulating device is required to keep the inner pressure within a suitable range. After the existing regulating device is used for a long time, the contact position between the movable box and the sleeve is easily worn, resulting in gas leakage inside the fermentation tank, which makes the fermentation tank unable to be used normally. In order to solve this problem, a control mechanism and an inflation mechanism are set. During the fermentation process, the turntable 27 is rotated so that the adjusting plate 24 is driven to move up and down inside the cylinder 22 through the threaded rod 26, so that the pressure required for pressure relief is adjusted to the required value, and the servo motor 20 is controlled to drive the stirring shaft 21 to rotate to ensure that the material inside the tank body 1 is fully fermented. During the fermentation process, the inner pressure of the tank body 1 is the same as the inner pressure of the cylinder 3. At this time, the inner round rod 4 extends to make the round plate 5 contact the bottom side of the top plate 9, so that the wire 12 is connected with the cooperation of the metal plate 8, so that the DC power supply 10 and the controller 11 form a closed circuit. At this time, the controller 11 controls the inflation mechanism to stop running. The first spring 7 is in a stretched state. If the pressure is lower than the set value, the first spring 7 pulls the round rod 4 to contract, so that the wire 12 is disconnected. At this time, the controller 11 controls the air pump 17 to operate, and air is drawn in through one end of the shell 16. The activated carbon filter 19 and the waterproof breathable membrane 18 filter out impurities in the air, and then the air is output through the air pipe 13. At this time, the air pushes the rubber plug 14 to open, thereby delivering air to the inside of the tank body 1 through the cylinder 3 until the pressure inside the tank body reaches the set value, so that the wire 12 is reconnected. At this time, the second spring 15 will pull the trapezoidal rubber plug 1 4 is closely attached to the bottom of the cylinder 3, so that the gas delivery pipe 13 can only be inflated in one direction, thereby preventing the tank body 1 from leaking during use. If the pressure is too high, it pushes the top-conical piston 23 to slide upward inside the cylinder 22 until the exhaust port 28 is connected with the inside of the tank body 1, thereby exhausting the gas. When the pressure reaches the set value, the third spring 25 pulls the top-conical piston 23 down, thereby closing the exhaust port 28. In addition, the third spring 25 is in a closed environment during use and is not easy to be corroded and damaged, thereby solving the problem of gas leakage after the existing regulating device is used for a long time.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A fermentation tank pressure regulating device, characterized in that: It comprises a tank body (1); a control mechanism is arranged on one side of the tank body (1); an inflation mechanism is arranged on the bottom side of the control mechanism; a pressure relief mechanism is arranged on the top side of the tank body (1); and a support plate (2) is fixed on the circumferential surface of the bottom side of the tank body (1); The control mechanism comprises a support plate (2), a cylinder (3) is fixed on the top side of the support plate (2), a fixing plate (6) is fixed on the circumferential surface of the tank body (1), a round rod (4) is slidably mounted on the inner side of the cylinder (3), a round plate (5) is fixed on the top end of the round rod (4), a first spring (7) is fixedly connected between the round plate (5) and the fixing plate (6), a metal plate (8) is fixed on the top end of the round plate (5), a top plate (9) is fixed on the circumferential surface of the top side of the tank body (1), a DC power supply (10) and a controller (11) are connected to form a disconnect circuit through a wire (12) on the top side of the top plate (9), an air supply pipe (13) is fixedly connected to the bottom side of the cylinder (3) through the support plate (2), a rubber plug (14) is buckled on the bottom end of the inner side of the cylinder (3), and a second spring (15) is fixedly connected between the rubber plug (14) and the air supply pipe (13).

2. A fermentation tank pressure regulating device according to claim 1, characterized in that: The inner bottom end of the cylinder (3) is connected to the inner side of the tank body (1) through a conduit, the round rod (4) is slidably inserted into the center position of the fixing plate (6), and a shell (16) is fixedly installed on the bottom side of the tank body (1).

3. A fermentation tank pressure regulating device according to claim 2, characterized in that: The inflation mechanism comprises a shell (16), an air pump (17) is fixed inside the shell (16), the controller (11) is connected to the air pump (17) by signal, a waterproof and breathable membrane (18) is fixed inside the shell (16) on one side of the air pump (17), and an activated carbon filter (19) is buckled on one end of the shell (16).

4. A fermentation tank pressure regulating device according to claim 3, characterized in that: The activated carbon filter (19) is located on one side of the waterproof and breathable membrane (18); the bottom end of the air delivery pipe (13) passes through the shell (16) and is fixedly connected to the air delivery end of the air pump (17); and a cylinder (22) is fixed on the top side of the tank body (1).

5. A fermentation tank pressure regulating device according to claim 4, characterized in that: The pressure relief mechanism comprises a cylinder (22), a conical piston (23) is slidably mounted inside the cylinder (22), an adjustment plate (24) is slidably mounted on the top of the inner side of the cylinder (22), a third spring (25) is fixedly connected between the adjustment plate (24) and the conical piston (23), a threaded rod (26) is fixed on the top of the adjustment plate (24), and the threaded rod (26) is slidably inserted into the top of the cylinder (22).

6. A fermentation tank pressure regulating device according to claim 5, characterized in that: A turntable (27) is rotatably mounted on the top of the cylinder (22), and the turntable (27) is rotatably connected to the threaded rod (26); an exhaust port (28) is provided on the circumferential surface of the bottom side of the cylinder (22); a servo motor (20) is fixed to the bottom side of the tank body (1); a stirring shaft (21) is fixed to the output end of the servo motor (20) passing through the tank body (1); and a bracket (101) is fixed to the bottom end of the tank body (1).

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