Uniform heating temperature control device for electrically heated agitator kettle

Abstract

The utility model relates to the enamelled ladle technical field especially relates to a kind of power heat enamelled ladle even heating temperature control device, including shell, the lower end of the shell is fixed with several bottom feet, the inside embedding of the shell is fixed with inner bag, the shell is set with the oil cavity for heat-conducting oil filling between inner bag;The inner wall one side upper end of the oil cavity is fixed with oil inlet, the valve one is set on the oil inlet, the valve core of the valve one is embedded in the inside of oil inlet, the inner wall other side lower end of the oil cavity is fixed with oil outlet, the utility model is filled with the oil cavity of heat-conducting oil between inner bag and shell, and heating is carried out with the cooperation of multi-point distribution electric heating tube, even stable heating to material is realized, as heat transfer medium, heat-conducting oil is excellent in heat conduction performance, can quickly and evenly pass heat to the entire surface of inner bag, effectively avoid the problem of local overheating or heating dead angle.

Description

Technical Field

[0001] This utility model relates to the field of enamel-lined autoclave technology, and in particular to a uniform heating temperature control device for an electrically heated enamel-lined autoclave. Background Technology

[0002] The electric heating enamel autoclave is a reaction device that combines enamel technology with electric heating technology. It is widely used in many industries such as chemical, food, and pharmaceutical. The enamel autoclave has good insulation properties, which can prevent materials from directly contacting the metal autoclave body and causing chemical reactions, thus ensuring the purity and stability of the reaction.

[0003] Enameled reactors possess excellent chemical stability, resisting corrosion from various acids, alkalis, salts, and other chemical media. They are suitable for the reaction and processing of various corrosive materials. For example, Chinese Patent Publication No. CN220677797U provides a heating device for a low-temperature enamel-lined reactor used in the production of Yikanshu. This device includes a heating cylinder, with the enamel-lined reactor body mounted on the top wall of the heating cylinder via a support assembly. A mixing and heating assembly is installed on the inner wall of the heating cylinder, and a controller is installed on the front wall of the heating cylinder. This invention relates to the field of Yikanshu production technology. This low-temperature enamel-lined reactor heating device for Yikanshu production involves injecting water into the heating cylinder, the controller controlling the heating plate to heat the reactor body, a temperature sensor monitoring the temperature of different water layers, and a motor driving a rotating shaft. When the water temperature is too low or too high, the controller activates the heating plate to heat the enamel-lined reactor body. This ensures that when heating the enamel-lined reactor for Yikanshu production begins, the overall water temperature remains uniform, and the water temperature of different layers can be monitored, maintaining a reasonable temperature range during the heating process.

[0004] Currently, when working in an enamel-lined reactor, in order to ensure that the stirring solution in the inner liner can be heated to a suitable reaction temperature, a heating structure is usually added between the inner liner and the outer shell. However, most methods involve directly contacting the outer wall of the inner liner with a heat-conducting plate embedded with an electric heating tube, or conducting heat through water. The former, because it heats from a localized starting point, is prone to uneven heating, while the latter, due to the rapid cooling of water, requires additional insulation structures for heat preservation. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a uniform heating temperature control device for an electric thermal enamel kettle.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: Design a uniform heating temperature control device for an electric thermal enamel kettle, including an outer shell, several feet fixedly distributed at the lower end of the outer shell, an inner liner embedded and fixed inside the outer shell, and an oil cavity for filling with heat-conducting oil provided between the outer shell and the inner liner; An oil inlet port is fixedly installed through one upper end of the inner wall of the oil chamber. A valve is installed on the oil inlet port, and the valve core of the valve is embedded inside the oil inlet port. An oil outlet port is fixedly installed through the other lower end of the inner wall of the oil chamber. A valve is installed on the oil outlet port, and the valve core of the valve is embedded inside the oil outlet port. The lower end of the inner liner is fixed with a discharge port, the lower end of which extends downward through the outer shell. A valve three is provided on the discharge port, and the valve core of the valve three is embedded inside the discharge port.

[0007] Preferably, a plurality of sealing sleeves are provided through the lower end of the inner wall of the oil cavity. The plurality of sealing sleeves are arranged in a ring at equal intervals along the inner wall of the oil cavity. An electric heating tube is inserted and fixed inside the sealing sleeve. A temperature sensor is installed at one end of the electric heating tube inside the oil cavity.

[0008] Preferably, the outer power-contact ends of several of the heating tubes are jointly mounted on the same power-contact base, and a power-contact interface is provided on one side of the power-contact base.

[0009] Preferably, a sealed bearing is fixedly installed through the lower end of the oil cavity. A shaft is installed through and with an interference fit on the inner ring wall of the sealed bearing. Several blades are fixedly distributed on the surface of one end of the shaft inside the oil cavity. A motor is installed at the lower end of the shaft. The outer ring wall of the motor is fixedly installed to the lower end of the housing through a bracket. A drive shaft is installed inside the motor. The end of the drive shaft is connected to the shaft through a coupling.

[0010] Preferably, both the outer shell and the inner liner are covered with a cover plate at their upper ends. A feeding port is fixed through one side of the cover plate, and a pressure relief valve is fixed through the other end of the cover plate away from the feeding port.

[0011] Preferably, a second sealing bearing is fixed through the center of the cover plate, and a second shaft is installed through the inner ring wall of the second sealing bearing with an interference fit.

[0012] Preferably, a stirring head is fixedly installed at one end of the shaft two inside the inner liner, a motor two is provided at the upper end of the shaft two, the outer ring wall of the motor two is fixed to the surface of the cover plate by a bracket, a rotating shaft two for driving is provided inside the motor two, and the end of the rotating shaft two is connected to the shaft two by a coupling.

[0013] The design scheme proposed in this utility model has the following beneficial effects in application: 1. This utility model achieves uniform and stable heating of materials by setting an oil cavity filled with heat-conducting oil between the inner liner and the outer shell, and cooperating with multiple distributed electric heating tubes for heating. As a heat transfer medium, heat-conducting oil has excellent heat conduction performance and can quickly and evenly transfer heat to the entire surface of the inner liner, effectively avoiding the problems of local overheating or heating dead zones. 2. This utility model has a blade stirring structure driven by a motor set inside the oil cavity, which significantly improves the uniformity of heat distribution of the heat transfer oil itself, thereby enhancing the overall heating efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a bottom view of the overall bottom of this utility model; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 For the present utility model Figure 3 Enlarged diagram of point A.

[0015] In the diagram: 1. Outer shell; 11. Base; 12. Inner liner; 13. Oil chamber; 14. Oil inlet; 15. Valve 1; 16. Oil outlet; 17. Valve 2; 18. Discharge port; 19. Valve 3; 2. Sealing sleeve; 21. Heating element; 22. Power socket; 23. Power port; 3. Sealed bearing 1; 31. Shaft 1; 32. Motor 1; 33. Blade; 4. Cover plate; 41. Feeding port; 42. Pressure relief valve; 5. Sealed bearing 2; 51. Shaft 2; 52. Stirring head; 53. Motor 2. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figures 1-4 A uniform heating temperature control device for an electric heating enamel-lined autoclave includes an outer shell 1, with several feet 11 fixedly distributed at the lower end of the outer shell 1. An inner liner 12 is embedded and fixed inside the outer shell 1. An oil cavity 13 for filling with heat-conducting oil is provided between the outer shell 1 and the inner liner 12. The outer shell 1 and the inner liner 12 form a basic enamel-lined autoclave container structure. The oil cavity 13 can be filled with heat-conducting oil. The heat-conducting oil can make the heating effect more uniform during heating, and the required heat preservation conditions are lower compared with heating water. An oil inlet port 14 is fixedly installed through the upper end of one side of the inner wall of the oil chamber 13. A valve 15 is installed on the oil inlet port 14, and the valve core of the valve 15 is embedded inside the oil inlet port 14. An oil outlet port 16 is fixedly installed through the lower end of the other side of the inner wall of the oil chamber 13. A valve 2 17 is installed on the oil outlet port 16, and the valve core of the valve 2 17 is embedded inside the oil outlet port 16. The oil inlet port 14 can be used to add heat-conducting oil, and the oil outlet port 16 can be used to replace and discharge oil after a certain period of use. The lower end of the inner liner 12 is fixed with a discharge port 18. The lower end of the discharge port 18 extends downward through the outer shell 1. A valve 19 is provided on the discharge port 18. The valve core of the valve 19 is embedded inside the discharge port 18. The discharge port 18 can stably discharge the materials that are reacting and mixed in the inner liner 12.

[0018] The lower end of the inner wall of the oil cavity 13 is permeated by several sealing sleeves 2. The sealing sleeves 2 are equidistantly distributed in a ring along the inner wall of the oil cavity 13. An electric heating tube 21 is inserted and fixed inside the sealing sleeve 2. A temperature sensor is installed at one end of the electric heating tube 21 inside the oil cavity 13. The sealing sleeve 2 can ensure that the area through which the electric heating tube 21 penetrates the outer shell 1 is sealed and leak-proof. The electric heating tubes 21 in multiple positions can heat the heat-conducting oil from multiple points. The temperature sensor can monitor the oil temperature in real time and feed the data back to the PLC processing console. Through the temperature data processing of the processor, the temperature of the electric heating tube 21 can be adjusted to ensure that the oil temperature can be kept in a stable heating range.

[0019] Among them, the external power-on terminals of several heating tubes 21 are all installed on the same power-on socket 22. A power-on interface 23 is provided on one side of the power-on socket 22. The power-on socket 22 can be used to add a circuit for multiple heating tubes 21 to be connected in parallel for synchronization. The power-on interface 23 can be connected to the PLC control console through the processor.

[0020] The lower end of the oil cavity 13 is fixed with a sealed bearing 3. A shaft 31 is installed through and with an interference fit on the inner ring wall of the sealed bearing 3. Several blades 33 are fixedly distributed on the surface of one end of the shaft 31 inside the oil cavity 13. A motor 32 is installed at the lower end of the shaft 31. The outer ring wall of the motor 32 is fixedly installed to the lower end of the outer shell 1 through a bracket. The motor 32 is equipped with a rotating shaft for driving. The end of the rotating shaft is connected to the shaft 31 through a coupling. When it is necessary to improve the heat conduction of the oil and make it more uniformly heated, the power supply of the motor 32 is turned on, so that the rotating shaft can rotate and the shaft 31 can be linked to achieve the rotation of the blades 33. Thus, the oil can be moderately agitated to improve the uniformity of its temperature distribution.

[0021] Both the outer shell 1 and the inner liner 12 are covered with a cover plate 4. A feeding port 41 is fixed through one side of the cover plate 4, and a pressure relief valve 42 is fixed through the other end of the cover plate 4 away from the feeding port 41. The feeding port 41 is also covered with an end cap. The feeding port 41 can be used to add mixed materials. The pressure relief valve 42 can prevent the internal pressure of the inner liner 12 from becoming too high when the mixed materials are continuously heated, thus playing an auxiliary pressure relief role.

[0022] Among them, a sealing bearing 2 5 is fixed through the center of the cover plate 4, and a shaft 2 51 is installed through and with an interference fit on the inner ring wall of the sealing bearing 2 5. The shaft 2 51 can rotate stably based on the sealing bearing 2 5.

[0023] The inner liner 12 has a stirring head 52 fixedly installed at one end of the shaft 51. The upper end of the shaft 51 is equipped with a motor 53. The outer ring wall of the motor 53 is fixed to the surface of the cover plate 4 through a bracket. The motor 53 has a rotating shaft 2 for driving inside. The end of the rotating shaft 2 is connected to the shaft 51 through a coupling. After the motor 53 is powered on, the rotating shaft 2 can be rotated, and the shaft 51 can be rotated stably. Thus, the stirring head 52 can be stably linked, and the mixture can be stirred.

[0024] Working method: This solution achieves uniform heating and stable temperature control through the heat transfer oil in the oil chamber 13. After the oil chamber 13 is filled with heat transfer oil, it is heated by multiple annularly distributed electric heating tubes 21. Each electric heating tube 21 is fixed to the inner wall of the oil chamber 13 by a sealing sleeve 2 to ensure sealing and prevent leakage. The electric heating tube 21 has a built-in temperature sensor, which can monitor the oil temperature in real time and feed the data back to the PLC processing console. The PLC system dynamically adjusts the power of the electric heating tube 21 according to the temperature data to keep the oil temperature within the preset stable range. The heat transfer oil circulates in the oil chamber 13. Its high thermal conductivity and low heat preservation requirements make it more efficient than water. The oil inlet 14 and valve 15 are used to replenish the oil, while the oil outlet 16 and valve 17 facilitate the periodic replacement of the oil. In addition, the motor 32 drives the shaft 31 to rotate, which drives the blades 33 to stir the heat transfer oil, further enhancing the uniformity of temperature distribution. This multi-stage heating and stirring method ensures that the inner tank 12 is heated evenly and avoids local overheating. The sealing bearing 5 at the center of the cover plate 4 supports the rotation of the shaft 51. The lower end of the shaft 51 is connected to the stirring head 52, and the upper end is connected to the rotating shaft of the motor 53 through a coupling. After the motor 53 is powered on, it drives the rotating shaft to rotate, which drives the shaft 51 and the stirring head 52 to continuously stir the material in the inner liner 12. This process makes the material fully mixed and promotes the transfer of heat energy from the wall of the inner liner 12 to the inside. At the same time, the heat transfer oil in the oil chamber 13 is heated by the electric heating tube 21 and the heat energy is evenly transferred to the outer wall of the inner liner 12. The rotation of the stirring head 52 overcomes the temperature gradient that may be formed when the material is stationary, ensuring that the temperature of each point in the reaction system is consistent. The feeding port 41 and the end cap are used for feeding materials, and the pressure relief valve 42 automatically releases excess pressure during the heating process to ensure operational safety. The temperature sensor of the heating element 21 transmits the real-time oil temperature in the oil chamber 13 to the PLC processing control console. The PLC adjusts the power supply status of the heating element 21 through the power socket 22 and the power interface 23 to form a closed-loop temperature control. In the oil chamber 13, the motor 32 drives the blade 33 to stir the heat transfer oil through the shaft 31 to avoid local overheating or cooling of the oil. In the inner tank 12, the motor 53 drives the stirring head 52 to mix the materials through the shaft 51, and the pressure relief valve 42 is used to maintain stable pressure. The discharge port 18 and the valve 19 are located at the bottom of the inner tank 12 and are used to discharge the materials after the reaction is completed.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A uniform heating temperature control device for an electric thermal enamel kettle, comprising a shell (1), characterized in that: The lower end of the outer shell (1) is provided with a number of feet (11), and the inner liner (12) is embedded and fixed inside the outer shell (1). An oil cavity (13) for filling heat transfer oil is provided between the outer shell (1) and the inner liner (12). An oil inlet port (14) is fixedly installed through the upper end of one side of the inner wall of the oil chamber (13). A valve (15) is provided on the oil inlet port (14), and the valve core of the valve (15) is embedded inside the oil inlet port (14). An oil outlet port (16) is fixedly installed through the lower end of the other side of the inner wall of the oil chamber (13). A valve (17) is provided on the oil outlet port (16), and the valve core of the valve (17) is embedded inside the oil outlet port (16). The lower end of the inner liner (12) is fixed with a discharge port (18). The lower end of the discharge port (18) extends downward through the outer shell (1). A valve three (19) is provided on the discharge port (18). The valve core of the valve three (19) is embedded inside the discharge port (18).

2. The electric heating enamel-lined autoclave uniform heating temperature control device according to claim 1, characterized in that: The lower end of the inner wall of the oil cavity (13) is provided with several sealing sleeves (2). The several sealing sleeves (2) are arranged in a ring at equal intervals along the inner wall of the oil cavity (13). A heating tube (21) is inserted and fixed inside the sealing sleeve (2). A temperature sensor is installed at one end of the heating tube (21) inside the oil cavity (13).

3. The electric heating enamel-lined autoclave uniform heating temperature control device according to claim 2, characterized in that: The outer power-on ends of several of the electric heating tubes (21) are all mounted on the same power-on socket (22), and a power-on interface (23) is provided on one side of the power-on socket (22).

4. The electric heating enamel-lined autoclave uniform heating temperature control device according to claim 3, characterized in that: A sealed bearing (3) is fixedly installed through the lower end of the oil cavity (13). A shaft (31) is installed through and with an interference fit on the inner ring wall of the sealed bearing (3). Several blades (33) are fixedly distributed on one end surface of the shaft (31) inside the oil cavity (13). A motor (32) is provided at the lower end of the shaft (31). The outer ring wall of the motor (32) is fixedly installed to the lower end of the outer shell (1) through a bracket. A rotating shaft for driving is provided inside the motor (32), and the end of the rotating shaft and the shaft (31) are connected by a coupling.

5. The electric heating enamel-lined autoclave uniform heating temperature control device according to claim 4, characterized in that: The upper ends of the outer shell (1) and the inner liner (12) are both covered with a cover plate (4). A feeding port (41) is fixed through one side of the cover plate (4), and a pressure relief valve (42) is fixed through the other end of the cover plate (4) away from the feeding port (41).

6. The electric heating enamel-lined autoclave uniform heating temperature control device according to claim 5, characterized in that: A sealing bearing 2 (5) is fixed through the center of the cover plate (4), and a shaft 2 (51) is installed through and with interference fit on the inner ring wall of the sealing bearing 2 (5).

7. The electric heating enamel-lined autoclave uniform heating temperature control device according to claim 6, characterized in that: The shaft 2 (51) is located inside the inner liner (12) and a stirring head (52) is fixedly installed at one end. The upper end of the shaft 2 (51) is provided with a motor 2 (53). The outer ring wall of the motor 2 (53) is fixed to the surface of the cover plate (4) through a bracket. The motor 2 (53) is provided with a rotating shaft 2 for driving, and the end of the rotating shaft 2 and the shaft 2 (51) are connected by a coupling.

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