A reaction vessel for conveniently changing the working environment of amylase

Abstract

The utility model discloses a kind of reaction kettle of amylase working environment is changed conveniently, it is related to reaction kettle technical field.The utility model includes cauldron body, top cover, gas injection ring pipe and refrigerator.The top cover is fixed cover at the upper end opening of cauldron body, gas injection ring pipe is set below top cover, and its lower end surface circumferential array is vertically fixed with a group of gas injection branch pipes, and gas injection branch pipe side wall axial array is provided with a group of gas injection nozzle;Gas injection ring pipe upper end is communicated with top cover through communicating bend pipe, and the cold gas output end of refrigerator is connected with the communicating bend pipe through pipeline;The utility model is communicated with top cover through communicating bend pipe by the gas injection ring pipe and distributed gas injection branch pipe system of design, cold gas can be sprayed into reaction material in three-dimensional, uniform mode, realizes the fast, accurate and uniform regulation and control to the temperature of environment in cauldron, thereby creates the best working temperature environment for amylase, effectively guarantees the efficiency and stability of enzyme catalysis reaction.

Description

Technical Field

[0001] This invention belongs to the field of reaction vessel technology, and in particular relates to a reaction vessel that facilitates the modification of the working environment of amylase. Background Technology

[0002] In the process of amylase catalysis, rapid and precise control of the reaction system temperature is crucial to ensuring reaction efficiency and product quality. Traditional reactors often rely on jacketed heat exchange or simple venting to achieve cooling, which suffers from low heat transfer efficiency and slow response, making it difficult to meet the sensitive temperature requirements of enzymatic reactions. Uneven internal temperature field distribution can easily lead to local overheating or low temperature regions, affecting the consistency of amylase activity, causing fluctuations in reaction rate and a decrease in product conversion rate. Existing equipment lacks an efficient direct heat exchange and fluid disturbance synergy mechanism, making it particularly ineffective in dealing with rapid cooling of large-scale materials, thus restricting the controllability and overall efficiency of the production process.

[0003] To address these issues, we provide a reaction vessel that allows for easy modification of the amylase's working environment. Utility Model Content

[0004] The purpose of this invention is to provide a reaction vessel that facilitates the modification of the working environment of amylase. This is achieved by installing a gas injection ring pipe within the reaction vessel body, with a set of gas injection branch pipes circumferentially connected to the lower end face of the ring pipe. A connecting bend at the upper end of the ring pipe is connected to the top cover of the reaction vessel body. The outlet of a cooling fan is connected to the connecting bend pipe via a pipe. When the temperature of the amylase needs to be adjusted after mixing the starch slurry and amylase, the cooling fan is activated to generate cold air. This cold air is then diverted through the ring pipe and ejected from a set of gas injection nozzles axially arrayed on the sidewalls of each branch pipe, thereby rapidly cooling the starch slurry and placing the amylase in its optimal working environment.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a reaction vessel that facilitates the modification of the working environment of amylase. It includes a vessel body, a top cover, a gas injection ring pipe, and a cooler. The top cover is fixedly placed over the upper opening of the vessel body. The gas injection ring pipe is located below the top cover. A set of gas injection branch pipes are vertically fixed in a circumferential array on the lower end face of the gas injection ring pipe. A set of gas injection nozzles are axially arrayed on the side wall of the gas injection branch pipes. A connecting bend pipe is fixedly placed on the upper end face of the gas injection ring pipe. The connecting bend pipe is connected to the top cover. The cooler's cooler output end is connected to the connecting bend pipe through a pipe.

[0006] A further feature of this invention is that the direction of the gas injection nozzle is perpendicular to the axis of the vessel body.

[0007] A further feature of this invention is that a shaft seal is connected to the center of the upper end face of the top cover, a stirring motor is installed at the upper end of the shaft seal, the lower end of the shaft seal passes through the top cover and extends into the body of the vessel, the output end of the stirring motor is sleeved inside the shaft seal, a stirring paddle shaft is sleeved inside the lower end of the shaft seal, the upper end of the stirring paddle shaft is connected to the output end of the stirring motor through the shaft seal, and a set of stirring blades is fixedly arranged in a circumferential array on the outer side wall of the lower end of the stirring paddle shaft, the stirring blades being below the lower end face of the gas injection branch pipe.

[0008] A further feature of this invention is that a pressure relief valve is provided on the upper end face of the top cover.

[0009] A further feature of this invention is that an injection ring pipe is sleeved on the outer side of the gas injection ring pipe, a gap is left between the inner wall of the injection ring pipe and the outer wall of the gas injection ring pipe, a set of injection branch pipes are vertically fixed in a circumferential array on the lower end face of the injection ring pipe, and a set of injection nozzles are axially arrayed on the outer wall of the injection branch pipes.

[0010] A further feature of this invention is that the direction of the injection nozzle is parallel to the direction tangential to the outer wall of the vessel body.

[0011] A further feature of this invention is that a jacket is fitted on the lower outer side of the vessel body, with a gap between the inner wall of the jacket and the outer wall of the vessel body, and a set of support columns is provided at the lower end of the jacket.

[0012] A further feature of this invention is that a discharge valve is provided at the lower end outlet of the reactor body.

[0013] This utility model has the following beneficial effects: This invention constructs a three-dimensional cold gas injection system distributed on the upper part of the reactor by setting up a gas injection ring pipe and a set of gas injection branch pipes fixed in a circumferential array at its lower end, and axially arraying gas injection nozzles on the side wall of the gas injection branch pipes. This allows cold gas to be injected into the starch slurry evenly and dispersedly from multiple directions and different depths, greatly increasing the contact area between the cold gas and the material, thereby achieving rapid, accurate and uniform adjustment of the ambient temperature inside the reactor.

[0014] This invention directly connects the air cooler to the air injection ring pipe, allowing the generated cold air to be released directly through a three-dimensional injection system without diffusion. This effectively utilizes the full cooling potential of the cold air, significantly improving cooling efficiency and energy utilization. It can quickly adjust the working environment temperature of amylase to its optimal activity range, effectively ensuring the efficiency and stability of the enzyme catalytic reaction. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0016] Figure 1This is a schematic diagram of a reaction vessel that allows for easy modification of the working environment of amylase.

[0017] Figure 2 This is an exploded view of the air injection ring and the air conditioner.

[0018] Figure 3 This is a side sectional view of the vessel body and the stirring paddle shaft.

[0019] Figure 4 This is a side sectional view of the liquid injection ring and the gas injection ring.

[0020] Figure 5 This is a schematic diagram of the structure of the jacket and the vessel body.

[0021] The attached diagram lists the components represented by each number as follows: 1-Bottle body, 101-Jacket, 101a-Support column, 102-Discharge valve, 2-Top cover, 201-Shaft seal, 202-Agitator motor, 203-Agitator shaft, 203a-Agitator blade, 204-Pressure relief valve, 3-Gas injection ring pipe, 301-Gas injection branch pipe, 301a-Gas injection nozzle, 302-Connecting bend, 303-Liquid injection ring pipe, 303a-Liquid injection branch pipe, 303a-1-Liquid injection nozzle, 4-Air cooler. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example 1

[0023] Please see Figures 1 to 5 This utility model is a reaction vessel that facilitates changing the working environment of amylase, including a vessel body 1, a top cover 2, an air injection ring pipe 3, and a cooler 4; The vessel body 1 is a vertical cylindrical container with a volume of 500L, made of 316L stainless steel with a wall thickness of 3mm. The top end of the vessel body is connected to the top cover 2 via a flange. The top cover 2 is 15mm thick and equipped with a pressure-resistant sealing gasket. The jacket 101 is fitted on the lower outer side of the vessel body 1. The inner cavity of the jacket is 25mm thick and is welded to the outer wall of the vessel body to form a sealed space. Four support columns 101a are evenly distributed at the lower end of the jacket, with a height of 200mm, and are made of carbon steel. The discharge valve 102 is a pneumatic ball valve with a nominal diameter of DN50, installed at the center of the bottom of the vessel body, and the valve body is made of 316 stainless steel. The gas injection ring pipe 3 is fixed 200mm below the top cover 2. The outer diameter of the ring pipe is 89mm and the wall thickness is 2mm. It is made of 304 stainless steel. Eight gas injection branch pipes 301 are evenly distributed around the lower end of the gas injection ring pipe 3. The outer diameter of the branch pipe is 32mm and the length is 400mm. Each branch pipe is axially equipped with six gas injection nozzles 301a. The nozzle orifice diameter is 3mm and the spacing is 60mm. The nozzle direction is perpendicular to the axis of the vessel body. The connecting bend pipe 302 has an outer diameter of 45mm. It uses a 90° bend to connect the gas injection ring pipe and the top cover. The interface is sealed by argon arc welding. The stirring motor 202 has a power of 5.5kW and an adjustable speed of 0-100rpm, controlled by a frequency converter. The shaft seal 201 adopts a double-end mechanical seal, allowing a vacuum degree of -0.1Mpa. The stirring shaft 203 has a diameter of 60mm and a length of 800mm. It is made of 316 stainless steel. The four sets of stirring blades 203a are installed at a 45° angle. The blade width is 80mm and the distance from the bottom of the vessel is 150mm. The stirring blades are located 200mm below the gas injection branch pipe to ensure the synergistic effect of gas distribution and material mixing.

[0024] Specifically, the direction of the gas injection nozzle 301a is perpendicular to the axis of the vessel body 1, so that the injected cold gas can fully contact the starch milk in the vessel body 1, thereby quickly regulating the temperature.

[0025] Furthermore, a pressure relief valve 204 is provided on the upper end face of the top cover 2 to discharge high-pressure gas in the vessel body 1.

[0026] An injection ring pipe 303 is sleeved on the outside of the gas injection ring pipe 3. A gap is left between the inner wall of the injection ring pipe 303 and the outer wall of the gas injection ring pipe 3. A set of injection branch pipes 303a are vertically fixed in a circumferential array on the lower end face of the injection ring pipe 303. A set of injection nozzles 303a-1 are axially arrayed on the outer wall of the injection branch pipe 303a. Sodium carbonate diluent is injected into the injection ring pipe 303, so that the sodium carbonate diluent is sprayed into the starch milk from the injection nozzles 303a-1 on the side wall of the injection branch pipe 303a, thereby adjusting the pH value of the starch milk.

[0027] Furthermore, the direction of the injection nozzle 303a-1 is parallel to the direction tangential to the outer wall of the vessel body 1, so that the sodium carbonate dilution solution can be quickly mixed with the starch milk being stirred after being sprayed from the injection nozzle 303a-1.

[0028] The operation process in this embodiment is as follows: Before operating the equipment, check the sealing of each system and the integrity of the equipment. Turn on the stirring motor and run it at a low speed of 30 rpm. Add starch and water to the reactor body at a mass ratio of 1:5 to form a starch slurry. Start the jacketed steam heating system and heat the starch slurry to 95°C at a heating rate of 2°C / min. At this time, add heat-resistant α-amylase (0.1%) and keep it at this temperature for 30 minutes to break down the long starch chains into small molecule dextrins. Then start the air cooler and introduce 8°C cold air at a flow rate of 50 m³ / h through the air injection ring and injection... The gas injection nozzle on the gas branch pipe evenly sprays the gas into the reaction system, while the stirring speed is adjusted to 60 rpm to enhance heat exchange, cooling the material to 60°C within 15 minutes. During the cooling process, the liquid injection system is started simultaneously, and 10% sodium carbonate solution is sprayed tangentially through the liquid injection ring pipe and the liquid injection nozzle on the liquid injection branch pipe to adjust the pH value of the system to 4.5-5.0. Finally, saccharifying enzyme (addition amount 0.2%) is added, and the reaction is kept at 60°C for 10 hours to further hydrolyze dextrin into glucose. After the reaction is completed, the product is discharged through the bottom discharge valve.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A reaction vessel for conveniently changing the working environment of amylase, comprising a vessel body (1), a top cover (2), a gas injection ring pipe (3), and a cooler (4), characterized in that: The top cover (2) is fixedly covered at the upper opening of the vessel body (1). The gas injection ring pipe (3) is located below the top cover (2). A set of gas injection branch pipes (301) is vertically fixed in a circumferential array on the lower end face of the gas injection ring pipe (3). A set of gas injection nozzles (301a) is axially arrayed on the side wall of the gas injection branch pipe (301). A connecting bend pipe (302) is fixedly provided on the upper end face of the gas injection ring pipe (3). The connecting bend pipe (302) is connected to the top cover (2). The cold air output end of the air cooler (4) is connected to the connecting bend pipe (302) through a pipe.

2. The reaction vessel for conveniently changing the working environment of amylase according to claim 1, characterized in that: The direction of the gas injection nozzle (301a) is perpendicular to the axis of the vessel body (1).

3. The reaction vessel for conveniently changing the working environment of amylase according to claim 2, characterized in that: A shaft seal (201) is connected to the center of the upper end face of the top cover (2). A stirring motor (202) is provided at the upper end of the shaft seal (201). The lower end of the shaft seal (201) passes through the top cover (2) and extends into the vessel body (1). The output end of the stirring motor (202) is sleeved in the shaft seal (201). A stirring paddle shaft (203) is sleeved in the lower end of the shaft seal (201). The upper end of the stirring paddle shaft (203) is connected to the output end of the stirring motor (202) through the shaft seal (201). A set of stirring blades (203a) is fixedly arranged in a circumferential array on the outer side wall of the lower end of the stirring paddle shaft (203). The stirring blades (203a) are below the lower end face of the gas injection branch pipe (301).

4. The reaction vessel for conveniently changing the working environment of amylase according to claim 3, characterized in that: A pressure relief valve (204) is provided on the upper end face of the top cover (2).

5. The reaction vessel for conveniently changing the working environment of amylase according to claim 1, characterized in that: An injection ring pipe (303) is sleeved on the outside of the gas injection ring pipe (3). There is a gap between the inner wall of the injection ring pipe (303) and the outer wall of the gas injection ring pipe (3). A set of injection branch pipes (303a) is vertically fixed in a circumferential array on the lower end face of the injection ring pipe (303). A set of injection nozzles (303a-1) is arranged in an axial array on the outer wall of the injection branch pipe (303a). The upper end face of the injection ring pipe (303) is connected to the top cover (2) through a pipe.

6. The reaction vessel for conveniently changing the working environment of amylase according to claim 5, characterized in that: The direction of the injection nozzle (303a-1) is parallel to the direction tangent to the outer wall of the vessel body (1).

7. The reaction vessel for conveniently changing the working environment of amylase according to claim 6, characterized in that: The lower outer end of the vessel body (1) is fitted with a sleeve (101), and there is a gap between the inner wall of the sleeve (101) and the outer wall of the vessel body (1). A set of support columns (101a) is provided at the lower end of the sleeve (101).

8. The reaction vessel for conveniently changing the working environment of amylase according to claim 7, characterized in that: A discharge valve (102) is provided at the lower outlet of the reactor body (1).

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