High-strength heat exchange reaction kettle

Abstract

A kind of high-strength heat exchange reaction kettle, including reaction tank, heat exchange device and stirring device, reaction tank is vertical tank body, the top of reaction tank is provided with multiple feed inlet and gas phase mouth, the bottom of reaction tank is provided with discharge port, stirring system is reduced by strengthening material mixing local temperature gradient, ensure the uniformity of reaction system, while the inside and outside of reaction tank are provided with heat exchange device, the heat exchange device directly immersed in reaction in inside, continue heat exchange to the whole of reaction tank by cooperating the heat exchange device set outside, effectively improve heat response speed and heat exchange efficiency, ensure that reaction rate is maintained at higher level.The design can not only effectively improve reaction rate by stirring system and heat exchange device, but also can meet the heat release / heat absorption demand of different reaction process by the different heat exchange device setting form, effectively expand the use range.

Description

Technical Field

[0001] This utility model relates to a reaction vessel, and more particularly to a high-strength heat exchange reaction vessel. Background Technology

[0002] Heat exchange reactors are commonly used equipment in modern chemical, pharmaceutical and materials synthesis fields. They are industrial devices that combine chemical reaction vessels and heat exchange functions. Their core function is to achieve efficient and safe chemical reactions through precise temperature control. In most chemical reactions, temperature is not only a key parameter affecting reaction rate and selectivity, but also directly determines product purity, side reaction inhibition and process energy consumption.

[0003] Existing heat exchange reactors typically consist of the following core components: a pressure-resistant and corrosion-resistant vessel body, a heat exchange system, and a temperature control unit. Among these, the design of the heat exchange system directly determines the heat transfer efficiency and temperature response capability of the equipment.

[0004] The temperature control capability of traditional heat exchange reactors mainly relies on the jacket or coil and the external heat medium. Jacketed reactors have the advantages of simple structure, convenient maintenance, and suitability for conventional heating / cooling needs. Coil reactors have the advantages of high heat transfer efficiency and suitability for rapid heating and cooling or high viscosity materials.

[0005] Although this high-strength heat exchange reactor has a certain temperature control function, it still has the following drawbacks: 1. In liquid / solid-liquid reactions, reactants separate into layers due to density differences, resulting in large local concentration differences and a decrease in reaction rate.

[0006] 2. A single heat exchange system has a slow thermal response speed, making it difficult to meet the instantaneous temperature control requirements of intense exothermic / endothermic reactions, and thus has a limited range of applications.

[0007] The information disclosed in this background section is intended only to enhance understanding of the overall background of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of existing technologies, such as low reaction rate and limited application range, and to provide a high-intensity heat exchange reactor with a high reaction rate and a wide application range.

[0009] To achieve the above objectives, the technical solution of this utility model is: A high-strength heat exchange reactor, the reactor comprising: a reaction vessel, a heat exchange device, and a stirring device; The reaction vessel is a vertical vessel with multiple feed inlets and gas inlets at the top and a discharge outlet at the bottom. The heat exchange device is fixedly connected to the side wall of the reaction vessel, and the heat exchange device is used to reduce the temperature of the reactants inside the reaction vessel. The stirring device is fixedly installed on the reaction vessel, and the stirring device is used to stir the reactants in the reaction vessel.

[0010] The heat exchange device includes an inner coil, an outer coil, and a tube support. The tube support is an annular short tube structure. The tube support is coaxially arranged with the reaction vessel and is located inside the reaction vessel. The top and bottom of the tube support are fixedly connected to the inner wall of the reaction vessel by flanges. The inner coil is fixedly connected to the reaction vessel through the tube support. Both ends of the inner coil pass through the side wall of the reaction vessel and are sealed to the reaction vessel. The outer coil has a semi-circular longitudinal section, with the inner side being a straight line. The inner side of the outer coil is fixedly connected to the outer wall of the reaction vessel.

[0011] The heat exchange device includes an inner coil, a jacketed cylinder, a spiral guide plate, and multiple tube supports. The tube supports are column structures and are fixedly installed in the reaction tank in a vertical direction. The bottom of the tube supports is fixedly connected to the reaction tank. The inner coil is fixedly connected to the reaction tank through each tube support. Both ends of the inner coil pass through the side wall of the reaction tank and are sealed to the reaction tank. The jacketed cylinder is fitted onto the reaction vessel, and the spiral guide plate is disposed between the jacketed cylinder and the reaction vessel. The outer edge of the spiral guide plate is sealed to the inner wall of the jacketed cylinder, and the inner edge of the spiral guide plate is sealed to the outer wall of the reaction vessel.

[0012] The stirring device includes a motor and stirring blades. The motor is fixedly installed on the top of the reaction tank. The power output shaft of the motor is coaxially arranged with the reaction tank. The power output shaft of the motor passes through the top of the reaction tank and is sealed to the reaction tank. The stirring blades are provided on the power output shaft of the motor.

[0013] Multiple stirring blades are arranged sequentially from top to bottom on the power output shaft of the motor; The stirring blades are detachably connected to the power output shaft of the motor.

[0014] The bottom of the reaction vessel is also provided with a vent. The top of the reaction vessel is also equipped with a pressure gauge port, a thermometer port, and a nitrogen port.

[0015] The reactor also includes a manhole, a thermocouple, and two sight glasses. The manhole is located at the top of the reactor, one of the sight glasses is located in the middle of the manhole cover, and the other sight glass is located at the top of the reactor.

[0016] The processing device also includes multiple support bases, which are uniformly fixed on the outer wall of the reaction vessel along the circumferential direction.

[0017] The reaction vessel also includes a thermocouple, which is disposed at the bottom of the reaction vessel. Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model discloses a high-strength heat exchange reactor equipped with a stirring system. The stirring system enhances material mixing, reduces local temperature gradients, and ensures the homogeneity of the reaction system. Simultaneously, heat exchange devices are installed both inside and outside the reactor. The internal heat exchange device is directly immersed in the reactants, and in conjunction with the external heat exchange device, continues heat exchange across the entire reactor, effectively improving the thermal response speed and heat exchange efficiency, ensuring the reaction rate is maintained at a high level. Therefore, this design effectively improves the reaction rate through the stirring system and heat exchange devices.

[0018] 2. In this high-strength heat exchange reactor, the internal heat exchange device is an internal coil type, while the external heat exchange device is an external coil type or a jacketed type. The internal coil type can be positioned close to the inner wall of the reactor or close to the stirring blades. By using different heat exchange device configurations, the exothermic / endothermic requirements of different reaction processes can be met. Therefore, this design can effectively expand its application range by meeting the exothermic / endothermic requirements of different reaction processes through different heat exchange device configurations.

[0019] 3. In this high-strength heat exchange reactor, the internal coil of the heat exchange device occupies space inside the reactor, which may limit the size and form of the stirring blade and reduce mixing efficiency. Therefore, this design improves stirring efficiency by sequentially arranging multiple detachable stirring blades from top to bottom on the power output shaft of the motor. Furthermore, by replacing the appropriate stirring blades according to different reaction processes, the stirring efficiency can be further improved. Therefore, this design can effectively improve stirring efficiency. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of embodiment 1 of this design.

[0021] Figure 2 This is a structural schematic diagram of embodiment 2 of this design.

[0022] Figure 3 This is a top view of embodiment 1 of this design.

[0023] Figure 4 This is a top view of embodiment 2 of this design.

[0024] Figure 5 yes Figure 2 A schematic diagram of the spiral guide plate.

[0025] In the diagram: 1. Reaction vessel, 11. Gas port, 12. Discharge port, 13. Vent port, 14. Pressure gauge port, 15. Thermometer port, 16. Nitrogen port, 17. Feed port, 2. Heat exchange device, 21. Inner coil, 22. Outer coil, 23. Pipe support, 24. Jacketed cylinder, 25. Spiral guide plate, 3. Stirring device, 31. Motor, 32. Stirring blade, 4. Manhole, 5. Thermocouple, 6. Sight glass, 7. Support base. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0027] See Figure 1 , 3 A high-strength heat exchange reactor is disclosed, comprising: a reaction vessel 1, a heat exchange device 2, and a stirring device 3; the reaction vessel 1 is a vertical vessel, with multiple feed inlets 17 and gas inlets 11 at the top and a discharge outlet 12 at the bottom; the heat exchange device 2 is fixedly connected to the side wall of the reaction vessel 1 and is used to reduce the temperature of the reactants inside the reaction vessel 1; the stirring device 3 is fixedly mounted on the reaction vessel 1 and is used to stir the reactants inside the reaction vessel 1; the heat exchange device 2 includes an inner coil 21, an outer coil 22, and a tube support 23, the tube support 23 being an annular short tube structure, coaxially arranged with the reaction vessel 1, and disposed inside the reaction vessel 1; the top and bottom of the tube support 23 are fixedly connected to the inner wall of the reaction vessel 1 by flanges, and the inner coil 21 is connected to the inner wall of the reaction vessel 1 by the tube support 23. 3. The inner coil 21 is fixedly connected to the reaction vessel 1. Both ends of the inner coil 21 pass through the side wall of the reaction vessel 1 and are sealed to the reaction vessel 1. The outer coil 22 has a semi-circular longitudinal section, and the side near the inner side is straight. The inner side of the outer coil 22 is fixedly connected to the outer wall of the reaction vessel 1. The bottom of the reaction vessel 1 is also provided with a vent 13. The top of the reaction vessel 1 is also provided with a pressure gauge port 14, a thermometer port 15, and two nitrogen ports 16. The reaction vessel also includes a manhole 4, a thermocouple 5, and two sight glasses 6. The manhole 4 is located on the top of the reaction vessel 1, and one of the sight glasses 6 is located in the middle of the cover plate of the manhole 4, and the other sight glass 6 is located on the top of the reaction vessel 1. The processing device also includes multiple support seats 7, which are evenly fixedly arranged on the outer wall of the reaction vessel 1 along the circumferential direction. The reaction vessel also includes thermocouples, and the thermocouples 5 are located at the bottom of the reaction vessel.

[0028] The stirring device 3 includes a motor 31 and stirring blades 32. The motor 31 is fixedly installed on the top of the reaction tank 1. The power output shaft of the motor 31 is coaxially arranged with the reaction tank 1. The power output shaft of the motor 31 passes through the top of the reaction tank 1 and is sealed to the reaction tank 1. The stirring blades 32 are provided on the power output shaft of the motor 31. Multiple stirring blades 32 are arranged sequentially from top to bottom on the power output shaft of the motor 31. The stirring blades 32 are detachably connected to the power output shaft of the motor 31. Example

[0029] See Figure 2 , 4 5. A high-strength heat exchange reactor, comprising: a reaction vessel 1, a heat exchange device 2, and a stirring device 3; the reaction vessel 1 is a vertical vessel, with multiple feed inlets 17 and gas inlets 11 at the top and a discharge outlet 12 at the bottom; the heat exchange device 2 is fixedly connected to the side wall of the reaction vessel 1, and is used to reduce the temperature of the reactants inside the reaction vessel 1; the stirring device 3 is fixedly mounted on the reaction vessel 1, and is used to stir the reactants inside the reaction vessel 1; the heat exchange device 2 includes an inner coil 21, a jacketed cylinder 24, a spiral guide plate 25, and multiple pipe supports 23, the pipe supports 23 being column structures, and the pipe supports 23 being fixedly mounted vertically inside the reaction vessel 1. The bottom of the device 3 is fixedly connected to the reaction vessel 1. The inner coil 21 is fixedly connected to the reaction vessel 1 through various pipe supports 23. The two ends of the inner coil 21 pass through the side wall of the reaction vessel 1 and are sealed to the reaction vessel 1. The jacketed cylinder 24 is sleeved on the reaction vessel 1. The spiral guide plate 25 is disposed between the jacketed cylinder 24 and the reaction vessel 1. The outer edge of the spiral guide plate 25 is sealed to the inner wall of the jacketed cylinder 24, and the inner edge of the spiral guide plate 25 is sealed to the outer wall of the reaction vessel 1. The bottom of the reaction vessel 1 is also provided with a vent 13. The top of the reaction vessel 1 is also provided with a pressure gauge port 14, a thermometer port 15, and a nitrogen port 16. The processing device also includes multiple support seats 7, which are uniformly fixedly disposed on the outer wall of the reaction vessel 1 along the circumferential direction.

[0030] The stirring device 3 includes a motor 31 and stirring blades 32. The motor 31 is fixedly installed on the top of the reaction tank 1. The power output shaft of the motor 31 is coaxially arranged with the reaction tank 1. The power output shaft of the motor 31 passes through the top of the reaction tank 1 and is sealed to the reaction tank 1. The stirring blades 32 are provided on the power output shaft of the motor 31. Multiple stirring blades 32 are arranged sequentially from top to bottom on the power output shaft of the motor 31. The stirring blades 32 are detachably connected to the power output shaft of the motor 31.

[0031] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A high-strength heat exchange reactor, characterized in that, The reactor includes: a reaction vessel (1), a heat exchange device (2), and a stirring device (3); The reaction vessel (1) is a vertical vessel. The top of the reaction vessel (1) is provided with multiple feed inlets (17) and gas inlets (11), and the bottom of the reaction vessel (1) is provided with a discharge outlet (12). The heat exchange device (2) is fixedly connected to the side wall of the reaction vessel (1), and the heat exchange device (2) is used to reduce the temperature of the reactants in the reaction vessel (1); The stirring device (3) is fixedly installed on the reaction vessel (1) and is used to stir the reactants in the reaction vessel (1).

2. The high-strength heat exchange reactor according to claim 1, characterized in that, The heat exchange device (2) includes an inner coil (21), an outer coil (22) and a tube support (23). The tube support (23) is an annular short tube structure. The tube support (23) is coaxially arranged with the reaction tank (1). The tube support (23) is located inside the reaction tank (1). The top and bottom of the tube support (23) are fixedly connected to the inner wall of the reaction tank (1) by flanges. The inner coil (21) is fixedly connected to the reaction tank (1) through the tube support (23). The two ends of the inner coil (21) pass through the side wall of the reaction tank (1) and are sealed to the reaction tank (1). The longitudinal section of the outer coil (22) is semi-circular, and the side closest to the inside is straight. The inner side of the outer coil (22) is fixedly connected to the outer wall of the reaction vessel (1).

3. The high-strength heat exchange reactor according to claim 1, characterized in that, The heat exchange device (2) includes an inner coil (21), a jacketed cylinder (24), a spiral guide plate (25), and multiple pipe supports (23). The pipe supports (23) are column structures. The pipe supports (23) are fixedly installed in the reaction tank (1) in a vertical direction. The bottom of the pipe supports (23) is fixedly connected to the reaction tank (1). The inner coil (21) is fixedly connected to the reaction tank (1) through each pipe support (23). The two ends of the inner coil (21) pass through the side wall of the reaction tank (1) and are sealed to the reaction tank (1). The jacket cylinder (24) is fitted onto the reaction vessel (1), and the spiral guide plate (25) is disposed between the jacket cylinder (24) and the reaction vessel (1). The outer edge of the spiral guide plate (25) is sealed to the inner wall of the jacket cylinder (24), and the inner edge of the spiral guide plate (25) is sealed to the outer wall of the reaction vessel (1).

4. The high-strength heat exchange reactor according to any one of claims 1 to 3, characterized in that, The stirring device (3) includes a motor (31) and a stirring blade (32). The motor (31) is fixedly installed on the top of the reaction tank (1). The power output shaft of the motor (31) is coaxially arranged with the reaction tank (1). The power output shaft of the motor (31) passes through the top of the reaction tank (1) and is sealed to the reaction tank (1). The stirring blade (32) is provided on the power output shaft of the motor (31).

5. A high-strength heat exchange reactor according to claim 4, characterized in that, Multiple stirring blades (32) are arranged sequentially from top to bottom on the power output shaft of the motor (31). The stirring blade (32) is detachably connected to the power output shaft of the motor (31).

6. A high-strength heat exchange reactor according to claim 1, characterized in that, The bottom of the reaction vessel (1) is also provided with a vent (13); The top of the reaction vessel (1) is also equipped with a pressure gauge port (14), a thermometer port (15) and a nitrogen port (16).

7. A high-strength heat exchange reactor according to claim 1, characterized in that, The reactor also includes a manhole (4), a thermocouple (5) and two sight glasses (6). The manhole (4) is located at the top of the reactor (1), one of the sight glasses (6) is located in the middle of the cover plate of the manhole (4), and the other sight glass (6) is located at the top of the reactor (1).

8. A high-strength heat exchange reactor according to claim 1, characterized in that, The reactor also includes multiple support seats (7), which are uniformly fixed on the outer wall of the reactor (1) along the circumferential direction.

9. A high-strength heat exchange reactor according to claim 2, characterized in that, The reactor also includes a thermocouple (5), which is located at the bottom of the reactor (1).

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