Reaction kettle

Abstract

The utility model relates to an improved structure of a reaction kettle, which comprises a kettle body, a stirring device, a temperature measuring device and a temperature adjusting device, the kettle body comprises a main body and a jacket, the main body is used for accommodating reactants or storing materials, and the jacket wraps the outer wall of the main body to form a closed space; an inlet convenient for a heating medium or a cooling medium to enter and an outlet convenient for the heating medium or the cooling medium to leave are formed in the position, corresponding to the closed space, of the jacket; the stirring device comprises an anchor stirrer, a stirring shaft and a transmission device, the anchor stirrer is arranged in the inner cavity of the main body in a rotating mode, the transmission device is located outside the kettle body, one end of the stirring shaft is connected with the transmission device, and the other end of the stirring shaft penetrates through the kettle body to be connected with the anchor stirrer; the transmission device drives the anchor stirrer to rotate through the stirring shaft; according to the reaction kettle, the anchor stirrer is adopted, and the stirring shaft is driven by the transmission device to rotate, so that reactants in the kettle body are efficiently stirred.

Description

Technical Field

[0001] The utility model relates to a reaction kettle. Background Art

[0002] Reactors are an important equipment in the production process of chemical, pharmaceutical and food processing industries. Their main function is to contain reactants, perform specific chemical reactions or store and process materials. In order to ensure the efficiency, safety and stability of the production process, the design and configuration of the reactor are crucial. Reactors in the prior art have the following problems:

[0003] Temperature control problem: The design of the heating or cooling device of the traditional reactor is relatively simple, usually just adding a jacket to the outside of the reactor, but this design is often difficult to ensure the uniformity and stability of temperature during actual use. In addition, the unreasonable design of the medium inlet and outlet channels will also affect the heat exchange efficiency.

[0004] Stirring efficiency problem: Many reactors use simple stirring devices, and the stirring effect is not ideal, especially in reactions with high viscosity materials or requiring vigorous stirring. It is impossible to effectively ensure that the reactants are fully mixed and the reaction proceeds uniformly.

[0005] Temperature measurement accuracy problem: Most existing temperature measuring devices are single-point temperature measurement, which cannot reflect the temperature of each area in the kettle in real time and accurately, resulting in inaccurate temperature control, affecting the reaction effect and product quality.

[0006] Pressure control problem: The design of the pressure control device of the existing reactor is relatively simple, and it is impossible to achieve accurate control and regulation of the pressure inside the reactor. Especially in the production process that requires frequent pressure adjustment, it is difficult to ensure safety and stability.

[0007] Inconvenient feeding and discharging operations: The feeding and discharging ports of traditional reactors are not designed reasonably, which makes operation inconvenient and the sealing performance is poor, which can easily lead to material leakage or contamination. Utility Model Content

[0008] The utility model aims to provide a reaction kettle with high-efficiency temperature control, excellent stirring effect, precise temperature measurement and pressure regulation functions.

[0009] The purpose of the utility model is achieved in this way:

[0010] A reaction kettle, comprising a kettle body, a stirring device, a temperature measuring device and a pressure regulating device, wherein the kettle body comprises a main body for containing reactants or storing materials and a jacket, wherein the jacket is wrapped around the outer wall of the main body to form a closed space, and the jacket is provided with an inlet for facilitating the entry of a heating medium or a cooling medium and an outlet for facilitating the exit of the heating medium or the cooling medium at a position corresponding to the closed space;

[0011] The stirring device comprises an anchor stirrer, a stirring shaft and a transmission device, wherein the anchor stirrer is rotatably arranged in the inner cavity of the main body, the transmission device is located outside the kettle body, one end of the stirring shaft is connected to the transmission device, and the other end of the stirring shaft passes through the kettle body and is connected to the anchor stirrer, and the transmission device drives the anchor stirrer to rotate through the stirring shaft;

[0012] The temperature measuring device comprises a temperature measuring probe and a temperature display screen. The temperature measuring head of the temperature measuring probe passes through the outer wall of the kettle body and extends into the inner cavity of the kettle body. The tail of the temperature measuring probe is located outside the kettle body and connected to the temperature display screen.

[0013] A feed inlet connected to the inner cavity of the main body is provided at the top of the main body, and a first blocking cover is provided at the feed inlet;

[0014] The bottom of the main body is located outside the jacket and is provided with a discharge port connected to the inner cavity of the main body, and a second blocking cover is provided at the discharge port;

[0015] A pressure regulating port connected to the inner cavity of the main body is provided at the top of the main body;

[0016] The pressure regulating device comprises an air intake pump, an air extraction pump, a three-way valve and a pressure gauge, one port of the three-way valve is connected to the pressure regulating port, the other port of the three-way valve is connected to the air intake pump, the other port of the three-way valve is connected to the air extraction pump, the pressure gauge is arranged on the kettle body, and the pressure detection head of the pressure gauge extends into the inner cavity of the kettle body.

[0017] The jacket is wrapped around the outer wall of the kettle to form a closed space, which facilitates the entry and exit of the heating medium or cooling medium through the inlet and outlet, ensuring that the temperature inside the kettle can change quickly and evenly. This design effectively improves the heat exchange efficiency and ensures that the reactants or materials are always within the optimal temperature range.

[0018] The temperature probe goes deep into the inner cavity of the reactor to monitor the temperature in real time and accurately displays it on the temperature display screen to ensure the accuracy of temperature control.

[0019] The stirring device adopts an anchor stirrer, which is connected to the transmission device through a stirring shaft. The stirring shaft passes through the kettle body to achieve efficient stirring of the materials in the kettle. The anchor stirrer rotates in the inner cavity of the reactor to ensure sufficient mixing of the reactants, improve reaction efficiency and product uniformity.

[0020] The transmission device is located outside the kettle body, and drives the anchor agitator to rotate through the stirring shaft, avoiding direct contact between the transmission device and the reactants, and improving the reliability and service life of the stirring system.

[0021] A feed port is provided at the top of the main body, and is equipped with a first sealing cover to facilitate the addition and sealing of materials; a discharge port is provided at the bottom of the main body, and is equipped with a second sealing cover to facilitate the discharge and sealing of materials. The design is reasonable and the operation is convenient, avoiding leakage and pollution of materials.

[0022] The pressure regulating device includes an air inlet pump, an air extraction pump, a three-way valve and a pressure gauge. The three-way valve connects the pressure regulating port, the air inlet pump and the air extraction pump to achieve accurate regulation of the pressure in the kettle. The pressure gauge displays the pressure in the kettle in real time, which is convenient for operators to monitor and adjust, ensuring the safety and stability of the reaction process.

[0023] The pressure regulating device achieves precise control of the pressure in the reactor through the combined use of the air intake pump and the air extraction pump, coordinated with the flexible switching of the three-way valve, ensuring that the reactor can maintain a safe pressure level under various working conditions.

[0024] All parts in contact with the reactants are made of corrosion-resistant materials, and the inlet and outlet channels of the medium in the jacket are reasonably designed to avoid long-term corrosion of the medium to the equipment and improve the durability and service life of the reactor.

[0025] Through efficient stirring and temperature control systems, the reactants are ensured to be fully mixed and reacted at the optimal temperature, which significantly improves product quality and reaction efficiency.

[0026] By opening an inlet and an outlet for the heating medium or cooling medium to enter and leave the closed space at the position of the jacket corresponding to the closed space, and the heating or cooling medium generated by other equipment continuously circulates into and out of the closed space, the heating or cooling medium can be evenly distributed and circulated in the closed space, avoiding local overheating or overcooling, ensuring the uniformity and stability of the material temperature in the main body, and the uniform temperature distribution helps to optimize the chemical reaction conditions, reduce the influence of the temperature gradient on the reaction rate and product selectivity, and improve the reaction efficiency and product quality. In addition, the stable temperature control reduces the uncertainty caused by temperature fluctuations during the reaction process, improves the controllability and repeatability of the reaction, and ensures the consistency and high quality of the product. In addition, the uniform heat exchange reduces energy loss, improves the utilization efficiency of the heating or cooling medium, and reduces energy consumption and production costs.

[0027] The purpose of the utility model can also be solved by the following technical measures:

[0028] Furthermore, the inner wall of the main body is a stainless steel inner wall, and the inner wall of the main body is pickled and passivated to form a dense chromium oxide film.

[0029] The inner wall of the stainless steel is pickled and passivated to form a dense chromium oxide film, which can effectively block the erosion of external media and significantly enhance the corrosion resistance of the inner wall. It is particularly suitable for handling corrosive reactants or media.

[0030] The chromium oxide film provides a long-term protection mechanism, reducing equipment maintenance and replacement costs due to corrosion and increasing the overall service life of the equipment.

[0031] The surface of the stainless steel inner wall after pickling and passivation treatment is smooth and flat, which reduces the adhesion and residue of reactants on the inner wall, reduces the risk of cross contamination, and helps maintain the purity and quality of the product.

[0032] The treated inner wall is easier to clean and disinfect, avoiding the accumulation of pollutants. It is suitable for industries with high requirements on hygiene conditions, such as pharmaceuticals and food processing.

[0033] After pickling and passivation treatment, the surface roughness of the stainless steel inner wall is reduced, and the heat transfer medium forms a uniform film on the inner wall surface, which improves the heat transfer effect and the heating and cooling efficiency of the reactor.

[0034] The formation of the chromium oxide film improves the chemical stability of the inner wall, and can maintain good heat transfer performance under high temperature and high pressure environments, ensuring the stability of the reaction process.

[0035] The high corrosion resistance of the stainless steel inner wall reduces the risk of perforation or leakage due to corrosion, improves the safety of the equipment, and ensures the safe operation of the production process.

[0036] Pickling passivation treatment can remove stress concentration points on the surface of stainless steel, reducing the risk of stress corrosion cracking, and is particularly suitable for high-pressure reaction environments.

[0037] The treated stainless steel inner wall has excellent corrosion resistance and mechanical properties, which reduces equipment failures caused by corrosion, wear and other factors, and significantly extends the service life of the reactor.

[0038] Due to the improved durability and stability of the equipment, the maintenance frequency and cost are reduced, and the production efficiency and economic benefits are improved.

[0039] By using stainless steel material for the inner wall of the main body of the reactor and performing pickling and passivation treatment, the utility model has achieved significant improvements in corrosion resistance, product purity, heat transfer performance, safety and equipment service life, providing a more efficient and reliable reaction equipment for various chemical, pharmaceutical and food processing industries.

[0040] Furthermore, the outer wall of the main body is made of carbon steel, and the outer wall of the main body is coated with anti-rust primer.

[0041] Applying anti-rust primer on the outer wall of carbon steel can effectively isolate moisture, oxygen and corrosive media in the external environment, prevent carbon steel from rusting and corrosion, and greatly extend the service life of the reactor.

[0042] The protective layer formed by the anti-rust primer has long-term stability and can maintain its protective performance over a long period of time, reducing the frequency and cost of equipment maintenance.

[0043] Carbon steel, as the main outer wall material, has excellent mechanical strength and durability, and can withstand greater pressure and mechanical stress, ensuring the stable operation of the reactor under harsh conditions such as high pressure and high temperature.

[0044] The anti-rust primer has good adhesion to the carbon steel outer wall and is not easy to peel or fall off, further improving the overall durability and reliability of the equipment.

[0045] Through the protection of anti-rust primer, the corrosion loss of the carbon steel outer wall is greatly reduced, which extends the maintenance cycle of the equipment, reduces maintenance costs and downtime, and improves production efficiency.

[0046] The anti-rust primer layer can restore its protective performance through simple repair and re-coating after damage, and the maintenance process is simple and low-cost.

[0047] Anti-rust primer can prevent holes and cracks in the outer wall of carbon steel due to corrosion, reduce the risk of material leakage, and ensure the safety of the production process.

[0048] The application of anti-rust primer can alleviate the stress concentration phenomenon on the outer wall of carbon steel and reduce the risk of stress corrosion cracking, which is particularly suitable for high-pressure reaction environments.

[0049] By using carbon steel material on the outer wall of the main body of the reactor and applying anti-rust primer, the utility model has achieved significant improvements in anti-corrosion performance, durability, maintenance cost, equipment appearance and safety, providing a more efficient, reliable and economical reaction equipment for industries such as chemical, pharmaceutical and food processing.

[0050] Furthermore, the wall thickness of the main body is greater than 12.2 mm.

[0051] The increase in the wall thickness of the main body significantly improves the mechanical strength of the reactor, enabling it to withstand greater internal pressure and external force, reducing the risk of deformation or rupture under high-pressure and high-temperature reaction conditions, and ensuring the long-term stable operation of the equipment.

[0052] Furthermore, the wall thickness of the jacket is greater than 8 mm.

[0053] The increase in jacket wall thickness improves its pressure resistance and structural strength, ensuring that no leakage or damage will occur under the pressure of the heating or cooling medium, ensuring the safety and reliability of the heat exchange process.

[0054] The beneficial effects of the utility model are as follows:

[0055] In the utility model, the jacket is wrapped around the outer wall of the kettle to form a closed space, and the inlet and outlet facilitate the entry and exit of the heating medium or the cooling medium, ensuring that the temperature inside the kettle can change quickly and evenly. This design effectively improves the heat exchange efficiency and ensures that the reactants or materials are always within the optimal temperature range.

[0056] The temperature measuring probe of the utility model goes deep into the inner cavity of the kettle body, monitors the temperature in the reaction kettle in real time, and displays it accurately through the temperature display screen, thereby ensuring the accuracy of temperature control.

[0057] The stirring device of the utility model adopts an anchor stirrer, which is connected to the transmission device through a stirring shaft, and the stirring shaft passes through the kettle body to achieve efficient stirring of the materials in the kettle. The anchor stirrer rotates in the inner cavity of the reactor to ensure sufficient mixing of the reactants, improve reaction efficiency and product uniformity.

[0058] The utility model provides a pressure regulating device including an air inlet pump, an air extraction pump, a three-way valve and a pressure gauge. The three-way valve is connected to the pressure regulating port, the air inlet pump and the air extraction pump to achieve accurate regulation of the pressure in the kettle. The pressure gauge displays the pressure in the kettle in real time, which is convenient for operators to monitor and adjust, thereby ensuring the safety and stability of the reaction process.

[0059] The utility model provides an inlet and an outlet for the heating medium or the cooling medium to enter and leave the closed space at the position of the jacket corresponding to the closed space, and the heating or cooling medium generated by other equipment continuously circulates into and leaves the closed space, so that the heating or cooling medium can be evenly distributed and circulated in the closed space, avoiding local overheating or overcooling, ensuring the uniformity and stability of the temperature of the material in the main body, and the uniform temperature distribution helps to optimize the chemical reaction conditions, reduce the influence of the temperature gradient on the reaction rate and the product selectivity, and improve the reaction efficiency and the product quality. Moreover, the stable temperature control reduces the uncertainty caused by the temperature fluctuation in the reaction process, improves the controllability and repeatability of the reaction, and ensures the consistency and high quality of the product. Furthermore, the uniform heat exchange reduces the energy loss, improves the utilization efficiency of the heating or cooling medium, and reduces the energy consumption and the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 Schematic diagram of the reactor.

[0061] Figure 2 This is a schematic diagram of the connection between the pressure regulating device and the pressure regulating port. DETAILED DESCRIPTION

[0062] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0063] Example, combined with Figure 1 to Figure 2As shown, a reaction kettle comprises a kettle body 1, a stirring device, a temperature measuring device and a pressure regulating device 2, wherein the kettle body 1 comprises a main body 11 for containing reactants or storing materials and a jacket 12, wherein the jacket 12 is wrapped around the outer wall of the main body 11 to form a closed space 13, and the jacket 12 is provided with an inlet 121 for facilitating the entry of a heating medium or a cooling medium and an outlet 122 for facilitating the exit of the heating medium or the cooling medium at a position corresponding to the closed space 13;

[0064] The stirring device comprises an anchor stirrer 3, a stirring shaft 4 and a transmission device 5, wherein the anchor stirrer 3 is rotatably arranged in the inner cavity of the main body 11, the transmission device 5 is located outside the kettle body 1, one end of the stirring shaft 4 is connected to the transmission device 5, and the other end of the stirring shaft 4 passes through the kettle body 1 and is connected to the anchor stirrer 3, and the transmission device 5 drives the anchor stirrer 3 to rotate through the stirring shaft 4;

[0065] The temperature measuring device includes a temperature measuring probe 6 and a temperature display screen 400. The temperature measuring head of the temperature measuring probe 6 passes through the outer wall of the kettle body 1 and extends into the inner cavity of the kettle body 1. The tail of the temperature measuring probe 6 is located outside the kettle body 1 and connected to the temperature display screen 400.

[0066] A feed inlet 100 communicating with the inner cavity of the main body 11 is provided at the top of the main body 11, and a first blocking cover 101 is provided at the feed inlet 100;

[0067] The bottom of the main body 11 is located outside the jacket 12 and is provided with a discharge port 200 connected to the inner cavity of the main body 11. A second blocking cover 201 is provided at the discharge port 200.

[0068] A pressure regulating port 300 communicating with the inner cavity of the main body 11 is provided at the top of the main body 11;

[0069] The pressure regulating device 2 includes an air intake pump 21, an air extraction pump 22, a three-way valve 23 and a pressure gauge 500. One port of the three-way valve 23 is connected to the pressure regulating port 300, the other port of the three-way valve 23 is connected to the air intake pump 21, and the other port of the three-way valve 23 is connected to the air extraction pump 22. The pressure gauge 500 is arranged on the kettle body 1, and the pressure detection head of the pressure gauge 500 extends into the inner cavity of the kettle body 1.

[0070] Furthermore, the inner wall of the main body 11 is a stainless steel inner wall, and the inner wall of the main body 11 is pickled and passivated to form a dense chromium oxide film 111 .

[0071] Furthermore, the outer wall of the main body 11 is made of carbon steel, and the outer wall of the main body 11 is coated with an anti-rust primer 112 .

[0072] Furthermore, the wall thickness of the main body 11 is greater than 12.2 mm.

[0073] Furthermore, the wall thickness of the jacket 12 is greater than 8 mm.

Claims

1. A reaction kettle, comprising a kettle body (1), a stirring device, a temperature measuring device and a pressure regulating device (2), characterized in that: The kettle body (1) comprises a main body (11) for containing reactants or storing materials and a jacket (12), wherein the jacket (12) is wrapped around the outer wall of the main body (11) to form a closed space (13), and the jacket (12) is provided with an inlet (121) for facilitating the entry of a heating medium or a cooling medium and an outlet (122) for facilitating the exit of the heating medium or the cooling medium at a position corresponding to the closed space (13); The stirring device comprises an anchor stirrer (3), a stirring shaft (4) and a transmission device (5); the anchor stirrer (3) is rotatably arranged in the inner cavity of the main body (11); the transmission device (5) is located outside the kettle body (1); one end of the stirring shaft (4) is connected to the transmission device (5); the other end of the stirring shaft (4) passes through the kettle body (1) and is connected to the anchor stirrer (3); the transmission device (5) drives the anchor stirrer (3) to rotate via the stirring shaft (4); The temperature measuring device comprises a temperature measuring probe (6) and a temperature display screen (400); the temperature measuring head of the temperature measuring probe (6) passes through the outer wall of the kettle body (1) and extends into the inner cavity of the kettle body (1); the tail of the temperature measuring probe (6) is located outside the kettle body (1) and connected to the temperature display screen (400); A feed inlet (100) communicating with the inner cavity of the main body (11) is provided at the top of the main body (11), and a first blocking cover (101) is provided at the feed inlet (100); The bottom of the main body (11) is located outside the jacket (12) and is provided with a discharge port (200) connected to the inner cavity of the main body (11), and a second blocking cover (201) is provided at the discharge port (200); A pressure regulating port (300) communicating with the inner cavity of the main body (11) is provided at the top of the main body (11); The pressure regulating device (2) comprises an air intake pump (21), an air extraction pump (22), a three-way valve (23) and a pressure gauge (500); one port of the three-way valve (23) is connected to the pressure regulating port (300); the other port of the three-way valve (23) is connected to the air intake pump (21); the other port of the three-way valve (23) is connected to the air extraction pump (22); the pressure gauge (500) is arranged on the kettle body (1); and the pressure detection head of the pressure gauge (500) extends into the inner cavity of the kettle body (1).

2. The reactor according to claim 1, characterized in that: The inner wall of the main body (11) is a stainless steel inner wall, and the inner wall of the main body (11) is pickled and passivated to form a dense chromium oxide film (111).

3. The reactor according to claim 1, characterized in that: The outer wall of the main body (11) is made of carbon steel, and the outer wall of the main body (11) is coated with an anti-rust primer (112).

4. The reactor according to claim 1, characterized in that: The wall thickness of the main body (11) is greater than 12.2 mm.

5. The reactor according to claim 1, characterized in that: The wall thickness of the jacket (12) is greater than 8 mm.

Images