A precise temperature control device for a magnetic drive built-in flow guide type foaming kettle

Abstract

A kind of precision temperature control device for built-in flow guide type foaming kettle driven by magnetic force, including foaming kettle body, the support of foaming kettle body bottom, foaming kettle body one end is connected with magnetic drive shaft, foaming kettle body other end is equipped with flat cover sealing, foaming kettle body inside is equipped with flow guide temperature control inner core, foaming kettle body side wall is provided with heat exchange temperature control layer, the utility model discloses a built-in flow guide temperature control inner core is driven by magnetic force without contact transmission, and realizes inside and outside collaborative temperature control in combination with side wall heat exchange temperature control layer, improves the uniformity of temperature in kettle and temperature control precision, eliminates sealing leakage risk, optimizes air flow and heat distribution, satisfies the production demand of high-precision foaming process.

Description

Technical Field

[0001] This utility model relates to the field of supercritical foaming equipment technology, and in particular to a precise temperature control device for a magnetically driven built-in flow-guiding foaming kettle. Background Technology

[0002] Foaming kettles are core equipment in the heating, foaming, and molding processes of shoe material blanks. The efficiency of internal hot air circulation, temperature uniformity, structural stability, and operational reliability directly determine product quality and production efficiency. Although current magnetically driven foaming kettles with built-in flow guides solve the high-pressure sealing problem through magnetic drive and optimize the flow field distribution inside the kettle through built-in flow guide structures, the supporting temperature control system still has significant defects: traditional temperature control devices mostly adopt jacketed single-sided heat exchange and external coil heat exchange modes. The heat exchange medium and the material inside the kettle only exchange heat through the cylinder wall. The heat exchange path is short and the heat transfer lag is large, which cannot match the rapid flow characteristics of the flow guide field. The built-in flow guide layer only undertakes the function of flow field guidance and is not integrated with the temperature control structure design, resulting in a large temperature gradient of the medium in the flow guide channel and local overheating or undercooling. Even if there is a flow guide drive inside the kettle, it is difficult to eliminate the problem of uneven temperature distribution.

[0003] Meanwhile, existing temperature control devices lack a precise temperature control execution structure that matches the magnetic drive and built-in flow field. The flow rate and temperature of the heat exchange medium cannot be adjusted in real time according to the velocity and regional distribution of the flow field. Under supercritical high-pressure conditions, temperature fluctuations are prone to exceed the allowable range of the process. Temperature control sensors are mostly installed on the outside of the vessel or in the shallow inner wall, resulting in delayed detection data and an inability to obtain the temperature of the core area of ​​the flow channel in real time. The temperature control response is slow and the error is large. In addition, the temperature control pipeline has poor compatibility with the high-pressure cavity of the foaming vessel and the magnetic drive mechanism, which can easily lead to problems such as heat exchange medium leakage and pipeline vibration interfering with the stability of the magnetic drive. Furthermore, there is no zoned temperature control design for the flow field, which cannot meet the differentiated temperature control requirements of different foaming stages and different flow areas.

[0004] Therefore, it is essential to provide a precise temperature control device for a magnetically driven, built-in flow-guiding foaming kettle to address the shortcomings of existing technologies. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a precise temperature control device for a magnetically driven, built-in flow-guiding foaming kettle. This invention achieves coordinated internal and external temperature control through magnetically driven contactless transmission combined with a built-in flow-guiding temperature control core and a side wall heat exchange temperature control layer. This improves the uniformity and accuracy of temperature control inside the kettle, eliminates the risk of sealing leakage, optimizes airflow and heat distribution, and meets the production requirements of high-precision foaming processes.

[0006] The above-mentioned objectives of this utility model are achieved through the following technical means.

[0007] A precise temperature control device for a magnetically driven, internally guided flow foaming kettle is provided, including a foaming kettle body, a support installed at the bottom of the foaming kettle body, a magnetic drive shaft connected to one end of the foaming kettle body, a flat cover seal installed at the other end of the foaming kettle body, a flow-guided temperature control inner core installed inside the foaming kettle body, and a heat exchange temperature control layer provided on the side wall of the foaming kettle body. The flow-guiding and temperature-controlling inner core includes a temperature-controlling inner component, on which a right-angle connector is installed. The right-angle connector is covered with an equilateral angle steel. An air guide platform is installed at the end of the temperature-controlling inner component near the magnetic drive shaft. The air guide platform is connected to the temperature-controlling inner component through the right-angle connector.

[0008] Specifically, the heat exchange and temperature control layer includes a double-layer inner liner with a cavity inside. The cavity surrounds the foaming vessel body, and heat exchange guide plates are arranged at equal intervals inside the cavity.

[0009] Specifically, a magnetic drive shaft is connected to an air guide platform, and a fan impeller is fitted onto the magnetic drive shaft. The fan impeller is coaxially mounted with the air guide platform.

[0010] Specifically, a temperature measuring connector is also provided at the top of the foaming vessel, which extends through the foaming vessel into the internal temperature control components.

[0011] Specifically, the temperature control component has a rectangular cross-section, and a support plate is installed on the outside of the temperature control component, which is connected to the internal support of the foaming kettle.

[0012] This invention utilizes magnetic drive for contactless transmission, combined with a built-in flow-guiding and temperature-controlling core, and a side-wall heat exchange and temperature-controlling layer to achieve coordinated internal and external temperature control. This improves the uniformity and accuracy of temperature control within the reactor, eliminates the risk of sealing leaks, optimizes airflow and heat distribution, and meets the production requirements of high-precision foaming processes. Attached Figure Description

[0013] The present invention will be further described with reference to the accompanying drawings, but the content of the drawings does not constitute any limitation on the present invention.

[0014] Figure 1 This is a front view of a precision temperature control device for a magnetically driven, built-in flow-guiding foaming kettle according to this utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of a precision temperature control device for a magnetically driven, built-in flow-guiding foaming kettle according to this utility model.

[0016] Figure 3 This utility model relates to a precise temperature control device for a magnetically driven, built-in flow-guiding foaming kettle. Figure 1 A magnified view of a portion of point A in the middle.

[0017] Figure 4 This utility model relates to a precise temperature control device for a magnetically driven, built-in flow-guiding foaming kettle. Figure 2A magnified view of a section at point B.

[0018] from Figures 1 to 4 Including: 1. Foaming vessel body; 2. Support; 3. Magnetic drive shaft; 4. Flat cover seal; 5. Flow guiding and temperature control inner core; 6. Heat exchange and temperature control layer; 7. Temperature control internal components; 8. Right angle connector; 9. Equal angle steel; 10. Air guide platform; 11. Double-layer inner liner; 12. Cavity; 13. Heat exchange guide plate; 14. Fan impeller; 15. Temperature measuring connector; 16. Support plate. Detailed Implementation

[0019] The present invention will be further described in conjunction with the following embodiments.

[0020] Example 1.

[0021] like Figure 1-4 As shown, it includes a foaming vessel body 1, a support 2 installed at the bottom of the foaming vessel body 1, a magnetic drive shaft 3 connected to one end of the foaming vessel body 1, a flat cover seal 4 installed at the other end of the foaming vessel body 1, a flow guiding and temperature control inner core 5 installed inside the foaming vessel body 1, and a heat exchange and temperature control layer 6 provided on the side wall of the foaming vessel body 1.

[0022] Supports 2 are symmetrically distributed at the bottom of the foaming vessel body 1, with a stable structure and uniform load-bearing capacity, providing stable support for the whole machine and facilitating installation and positioning on the production line; the magnetic drive shaft 3 adopts non-contact magnetic coupling transmission, with no shaft seal or dynamic sealing point, eliminating the risk of medium leakage under high pressure conditions from the root, with stable transmission and rapid response, and can be adapted to high temperature and pressure impact conditions for a long time; the flat cover seal 4 adopts a quick-opening high-pressure sealing structure, which is convenient to open and close and has reliable sealing, facilitating internal component maintenance, material loading and unloading and flow channel cleaning, and can fully cover the process requirements of heating, foaming, molding and instantaneous pressure relief.

[0023] The temperature control core 5 uses an integrated air duct plate with high thermal conductivity as the main body of the temperature control component 7. This ensures rapid heat transfer and uniform heat distribution, quickly eliminating localized high and low temperature dead zones within the vessel and significantly improving temperature field uniformity. Right-angle connectors 8 are installed on the temperature control component 7, externally covered with reinforced steel, significantly improving overall structural strength, impact resistance, and connection stability. This also adapts to the thermal expansion characteristics under high-temperature environments, preventing stress concentration and structural damage. A guide vane 10 is installed near the magnetic drive shaft 3 on the end of the temperature control component 7. The guide vane 10 adopts a frustum-shaped flow guiding structure, integrally formed from the guide ring and base. This results in low wind resistance and high flow guiding efficiency, efficiently gathering, pressurizing, and directionally guiding airflow to form a stable and orderly circulating airflow, eliminating eddies, turbulence, and temperature stratification, ensuring uniform coverage of the working area within the vessel with hot air.

[0024] The heat exchange temperature control layer 6 adopts a double-layer inner liner structure, forming a sealed heat exchange cavity surrounding the vessel body. Heat exchange guide plates are evenly arranged in the cavity, which can effectively extend the residence time of the heat exchange medium, disturb the flow field, improve heat exchange uniformity and heat transfer efficiency, forming a fully enclosed temperature control on the outer wall. Together with the built-in guide temperature control inner core 5, it achieves dual-effect temperature control inside and outside.

[0025] The magnetic drive shaft 3 is fixedly connected to the center of the air guide 10. The fan impeller 14 is coaxially mounted on the shaft. The impeller and the air guide 10 work together to form a directional forced circulation airflow under magnetic drive, which pushes the hot air to circulate rapidly along the preset flow channel, greatly accelerating the heat diffusion speed and improving the temperature control response efficiency and temperature uniformity.

[0026] The top of the foaming vessel 1 is equipped with a temperature measuring connector 15, which penetrates the vessel body and extends into the core flow channel of the temperature control internal component 7. It is used to install a high-precision temperature sensor, which can collect the temperature of the core area of ​​the flow channel in real time. There is no detection lag or data deviation, which provides a real and reliable temperature signal for closed-loop precise temperature control and solves the problems of lag, large error and slow response of traditional temperature measurement methods.

[0027] The temperature control internal component 7 adopts a rectangular cross-section structure, providing a large heat exchange area and smooth airflow. It is externally supported by a support plate 16, which is firmly attached to the inner wall of the vessel. The support plates are evenly distributed along the vessel's axial direction, ensuring a secure connection and uniform stress distribution, thus guaranteeing the overall stability of the internal component. The temperature control internal component 7 and the support plates are connected by assembled bolts, replacing the traditional welded structure and avoiding the deformation and cracking risks associated with welding. This facilitates installation, disassembly, and maintenance, significantly reducing equipment maintenance costs. The support system employs a dense layout design, effectively improving the tensile and impact resistance of the plate surface. It can stably withstand the airflow impact from instantaneous exhaust, preventing structural deformation, loosening, or displacement. The temperature control internal component 7 uses a composite structure with central positioning and flexible fixing at both ends. Precise central positioning prevents movement, while reasonable expansion gaps at both ends meet the needs of free expansion and contraction at high temperatures, ensuring smooth operation throughout the entire heating-heating-cooling cycle without jamming, compression, warping, or cracking. A guide rail structure at the bottom, combined with an expansion clearance opening design, not only allows for smooth material cart entry and exit but also avoids interference from high-temperature expansion and structural interference, ensuring long-term stable operation of the equipment.

[0028] In use, this invention completes the feeding and sealing process via a flat-cover seal 4, allowing the heat exchange medium to be introduced into the heat exchange and temperature control layer 6 to achieve external wall temperature control. The magnetic drive shaft 3 is activated, driving the impeller to rotate. Under the synergistic effect of the air guide and temperature control components, a directional circulating airflow is formed, ensuring rapid and uniform temperature distribution within the reactor. The temperature measuring connector 15 collects the core temperature in real time and provides feedback for adjustment, achieving precise closed-loop temperature control. The entire device employs magnetic non-contact drive, resulting in no leakage, high stability, and significantly improved temperature uniformity and control accuracy. It can stably meet the production requirements of high-precision foaming processes, effectively improving the product molding qualification rate.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A precise temperature control device for a magnetically driven, built-in flow-guiding foaming kettle, characterized in that: The foaming vessel includes a foaming vessel body, a support is installed at the bottom of the foaming vessel body, a magnetic drive shaft is connected to one end of the foaming vessel body, a flat cover is installed at the other end of the foaming vessel body for sealing, a flow guiding and temperature controlling inner core is installed inside the foaming vessel body, and a heat exchange and temperature controlling layer is provided on the side wall of the foaming vessel body. The flow-guiding and temperature-controlling inner core includes a temperature-controlling inner component, on which a right-angle connector is installed. The right-angle connector is covered with an equilateral angle steel. A guide air platform is installed at one end of the temperature-controlling inner component near the magnetic drive shaft. The guide air platform is connected to the temperature-controlling inner component through the right-angle connector. The heat exchange and temperature control layer includes a double-layer inner liner with a cavity inside. The cavity surrounds the foaming vessel body, and heat exchange guide plates are equidistantly arranged inside the cavity.

2. The precise temperature control device for a magnetically driven built-in flow-guiding foaming kettle according to claim 1, characterized in that: The magnetic drive shaft is connected to the air guide platform, and a fan impeller is sleeved on the magnetic drive shaft. The fan impeller is coaxially mounted with the air guide platform.

3. The precise temperature control device for a magnetically driven built-in flow-guiding foaming kettle according to claim 2, characterized in that: The top of the foaming vessel is also provided with a temperature measuring connector, which extends through the foaming vessel into the temperature control internals.

4. The precise temperature control device for a magnetically driven built-in flow-guiding foaming kettle according to claim 3, characterized in that: The temperature control component has a rectangular cross-section, and a support plate is installed on the outside of the temperature control component, which is connected to the internal support of the foaming kettle.

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