Jacketed hot air purging device
By adjusting the angle of the air guide vanes and the built-in air duct design, the problems of dust accumulation and insulation of the porcelain bushing under high humidity conditions were solved, achieving uniform cleaning of the inner wall of the porcelain bushing and long-term stable operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG TIANJIE ENVIRONMENT TECH
- Filing Date
- 2025-12-05
- Publication Date
- 2026-05-15
AI Technical Summary
Porcelain bushings are prone to generating water vapor under high humidity conditions, which can lead to arcing and creepage, causing short circuits. Existing technologies cannot effectively prevent local dust accumulation and extend the equipment's operating cycle.
By adjusting the angle of the air guide vanes, the hot air blowing path is changed to ensure uniform cleaning of the inner wall. The tilt angle of the air guide vanes is adjusted synchronously using a ring rotating component to avoid local dust accumulation. The built-in air duct and electric heater are used to maintain a constant temperature and avoid insulation risks.
It achieves uniform purging of the inner wall of the porcelain bushing, extends the equipment operating cycle, improves insulation performance and electrical safety, and reduces maintenance costs.
Smart Images
Figure CN121314797B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electrostatic precipitator technology, and in particular to a ceramic sleeve hot air purging device. Background Technology
[0002] Electrostatic precipitators (ESPs) are important environmental protection devices for improving air quality and reducing atmospheric pollution. They are primarily used to remove dust particles from flue gas, significantly reducing the content of dust and other harmful substances, making them ideal for controlling atmospheric dust pollution. All the porcelain bushings in an ESP are installed inside an insulated enclosure. High-voltage electricity is introduced through the high-voltage inlet porcelain bushings. Under high humidity conditions, water mist can form on the surface of the bushings, easily causing arcing and creepage between the potentials at both ends of the bushing, resulting in a short circuit in the high-voltage inlet porcelain bushing. Summary of the Invention
[0003] In order to overcome the shortcomings of the prior art, this application provides a ceramic sleeve hot air blowing device, which can change the hot air blowing path by adjusting the angle of the air guide vanes, avoid local dust accumulation, ensure uniform cleaning of the inner wall, thereby improving the cleaning effect and extending the equipment operation cycle.
[0004] To achieve the above objectives, this application adopts the following technical solution:
[0005] A ceramic sleeve hot air purging device includes an inner top, an insulated box with an insulated cavity, a hanging rod, an insulating ceramic sleeve, and a ceramic sleeve cover plate. The insulated box is fixed above the inner top, the insulating ceramic sleeve is disposed inside the insulated cavity and fixed above the inner top, the ceramic sleeve cover plate is installed on the top of the insulating ceramic sleeve, the upper end of the hanging rod is connected to the ceramic sleeve cover plate, the ceramic sleeve cover plate is provided with several connecting holes for guiding hot air from the insulated cavity into the interior of the insulating ceramic sleeve, the insulated box is provided with an air inlet, and the ceramic sleeve cover plate is equipped with a purging assembly, the purging assembly includes several guide vanes and an adjustment assembly for adjusting the tilt direction of the guide vanes, the guide vanes are correspondingly arranged with the connecting holes, and are used to guide the hot air introduced through the connecting holes to the inner wall surface of the insulating ceramic sleeve.
[0006] In the above technical solution, the hot air entering through the air inlet flows within the insulation cavity and enters the interior of the insulating porcelain bushing through the connecting hole. Guided by the air guide vanes, the hot air flows evenly along the inner wall surface, effectively preventing dust accumulation and condensation, thus improving insulation performance. By adjusting the component to control the tilt angle of the air guide vanes, the blowing path of the hot air on the inner wall of the insulating porcelain bushing can be changed, effectively avoiding dust accumulation caused by insufficient airflow in certain areas (or prolonged lack of hot air). This ensures that the entire inner wall surface is evenly swept, effectively improving the cleaning effect of the inner wall of the porcelain bushing and extending the equipment's operating cycle.
[0007] Preferably, the air guide blade is provided with a rotating shaft, which is rotatably connected to the ceramic sleeve cover plate. The upper end of the air guide blade extends above the ceramic sleeve cover plate. The adjustment component includes a rotating part, which is rotatably connected to the ceramic sleeve cover plate and linked to the upper end of all air guide blades. The tilt angle of each air guide blade is adjusted by rotating the rotating part.
[0008] In the above technical solution, the rotating component is a ring structure. A single rotating component can synchronously adjust the tilt angle of all guide vanes, ensuring that the airflow direction of each connecting hole is consistent and adjustable. This avoids mutual interference of airflow between guide vanes due to asynchronous adjustments, improving purging uniformity and control accuracy. Furthermore, adjusting all guide vanes with a single rotating component requires only one drive source to achieve overall adjustment, significantly reducing structural complexity and control difficulty, and lowering maintenance costs.
[0009] Preferably, the rotating component is provided with a plurality of linkage slots, and the upper end of the air guide blade extends into the corresponding linkage slot and abuts against the side wall of the corresponding linkage slot.
[0010] In the above technical solution, the linkage between the rotating component and the guide vane is achieved by the upper end of the guide vane extending into the side wall of the corresponding linkage groove. When the rotating component rotates, the side wall of the linkage groove pushes the upper end of the guide vane, causing it to deflect synchronously around the axis of rotation, ensuring that the tilt angle of each guide vane is consistent. The linkage groove structure is simple and reliable, effectively avoiding slippage or jamming, and ensuring a smooth and stable adjustment process.
[0011] Preferably, a first elastic element is provided between the rotating component and the ceramic sleeve cover plate to provide a pre-tightening force so that the rotating component rotates in the forward direction relative to the ceramic sleeve cover plate. The hot air blown in through the connecting hole blows the guide vanes to deflect, thereby driving the rotating component to overcome the pre-tightening force of the first elastic element and rotate in the reverse direction. An air inlet fan is installed at the air inlet.
[0012] In the above technical solution, the first elastic element can be either a torsion spring or a telescopic spring. When hot air is blown in through the connecting hole, the airflow pushes the guide vanes to deflect, which in turn causes the rotating component to overcome the preload of the first elastic element and rotate in the opposite direction. When the thrust of the hot air and the preload of the first elastic element reach equilibrium, the tilt angle of the guide vanes tends to stabilize. When it is necessary to adjust the angle of the guide vanes, it is only necessary to increase or decrease the airflow entering the insulation box through the air inlet, which changes the wind speed of the hot air blown into the insulating porcelain sleeve through the connecting hole, thereby changing the magnitude of the thrust of the hot air on the guide vanes and realizing the dynamic adjustment of the tilt angle of the guide vanes. When an independent air intake fan is set in each insulation box, the airflow of each insulation box can be adjusted by controlling the power of the air intake fan, realizing the differentiated adjustment of the guide vane angle in different areas, thereby dynamically optimizing the distribution of the purging airflow according to the equipment operating status and changes in ambient temperature. In the above technical solution, no electric drive component or additional transmission device is required on the top of the porcelain sleeve cover plate. This ensures the insulation between the top of the porcelain sleeve cover plate and other locations inside the insulation box, while avoiding the insulation risks associated with the introduction of external control circuitry, thus improving overall electrical safety. Since the entire purging assembly remains inside the insulation box in a high-temperature environment, and no electronic components are used, damage to the control components from high temperatures and dust is effectively avoided, significantly improving the long-term stability and reliability of the system.
[0013] Preferably, the adjustment assembly further includes an electric drive unit that drives the rotating component to rotate. By driving the rotating component to rotate in both directions, the guide vanes can be precisely adjusted in angle.
[0014] Preferably, the radial plane passing through the center of the connecting hole on the insulating porcelain sleeve is the first plane, and the angle α between the air guiding surface of the air guide blade and the first plane corresponding to the connecting hole is an acute angle, so that the hot air flows in a spiral shape along the inner wall of the insulating porcelain sleeve after being guided by the air guide blade, and the axis of the rotating shaft in the air guide blade is parallel to the air guiding surface.
[0015] In the above technical solution, the hot air, guided by the guide vanes, flows in a spiral pattern along the inner wall of the insulating porcelain sleeve, enabling more comprehensive coverage of the inner wall surface and enhancing the ability to remove dust accumulation areas. Inside the insulating porcelain sleeve, the spiral airflow forms a stable circumferential motion, effectively preventing the deposition of dust particles and further ensuring the insulation performance of the porcelain sleeve. Simultaneously, the axis of the rotating shaft in the guide vanes remains parallel to the guide surface. Under the thrust of the hot air, the guide vanes can obtain greater torque (the thrust of the hot air on the guide vanes is perpendicular to the axis of the rotating shaft), improving the sensitivity and stability of the rotational response.
[0016] Preferably, the ceramic sleeve cover plate is provided with mounting holes matching the number of air guide blades. The upper end of the air guide blade passes through the corresponding mounting hole and extends into the linkage groove. Mounting grooves are provided on both sides of the mounting hole. The rotating shaft of the air guide blade is rotatably connected to the mounting groove. The mounting groove is open at the top. The rotating part closes the top of the mounting hole and the mounting groove.
[0017] In the above technical solution, an opening is provided above the mounting slot to facilitate its fabrication and reduce processing costs. This design also aids in the installation and positioning of the guide vane shaft, improving assembly efficiency. The rotating component seals the top of the mounting hole and slot, preventing external impurities from entering and further enhancing the system's operational stability.
[0018] Preferably, the radial plane passing through the center of the connecting hole on the insulating porcelain sleeve is the first plane, and the angle α between the air guide surface of the air guide blade and the first plane corresponding to the connecting hole is an acute angle, so that the hot air flows in a spiral shape along the inner wall of the insulating porcelain sleeve after being guided by the air guide blade.
[0019] In the above technical solution, the air guide surface of the air guide blade guides the airflow at a certain angle, forming a spiral airflow along the inner wall, which effectively improves the efficiency of removing dust accumulated on the inner wall.
[0020] Preferably, the air guide blade is provided with a rotating shaft, which is rotatably connected to the ceramic sleeve cover plate. The adjustment component includes several second elastic elements, which are connected to the corresponding air guide blade and the ceramic sleeve cover plate. They are used to provide elastic force to keep the air guide blade in its initial position. The hot air blown in through the connecting hole blows the air guide blade to overcome the elastic force of the second elastic elements and deflect, thereby changing the tilt angle of the air guide blade.
[0021] In the above technical solution, the second elastic element provides elasticity to keep the guide vane in its initial position. When hot air is blown in through the connecting hole, the airflow pushes the guide vane to deflect, which in turn causes the rotating component to deflect against the elasticity of the second elastic element. When the thrust of the hot air and the elasticity of the second elastic element reach equilibrium, the tilt angle of the guide vane tends to stabilize. When it is necessary to adjust the angle of the guide vane, it is only necessary to increase or decrease the airflow entering the insulation box through the air inlet, which changes the wind speed of the hot air blown into the insulating porcelain sleeve through the connecting hole, thereby changing the magnitude of the thrust of the hot air on the guide vane and realizing the dynamic adjustment of the tilt angle of the guide vane. In the above technical solution, no electric drive component or additional transmission device is required on the top of the porcelain sleeve cover, ensuring the insulation between the top of the porcelain sleeve cover and other locations inside the insulation box while avoiding the insulation risk caused by the introduction of external control lines, thus improving the overall electrical safety. Since the entire purging assembly is always located inside the insulated box and in a high-temperature environment, and does not use electronic components, it effectively avoids damage to the control components caused by high temperature and dust, and significantly improves the stability and reliability of the system in long-term operation.
[0022] Preferably, the side wall of the insulation box has a built-in air duct, the air inlet is located in the built-in air duct, the built-in air duct is equipped with a manual regulating valve for adjusting the air volume, an embedded air intake fan is installed in the built-in air duct, the insulation box is equipped with an electric heater and a thermometer, part of the heating tube of the electric heater is located at the air inlet, and the other part of the electric heater is wrapped around the outside of the bottom of the insulating porcelain sleeve.
[0023] In the above technical solution, the incoming cold air is preheated by an electric heater. The purified cold air can then be directly introduced into the insulation box and heated to near its internal temperature. This eliminates the need for a shared external fan system to maintain high air pressure and overcome the resistance losses from long-distance pipeline transport, thus avoiding increased energy consumption. The built-in air duct and intake fan design facilitates use and maintenance. The elimination of a complex piping system reduces initial investment costs. Another part of the electric heater, wound around the bottom outer side of the insulating porcelain sleeve, raises the sleeve's temperature, preventing condensation due to temperature differences and further ensuring the insulation performance of internal electrical components. By using a thermometer to monitor the temperature inside the insulation box in real time, combined with automatic adjustment by the electric heater, constant temperature control within the box can be achieved, further improving the energy efficiency and stability of the hot air circulation system. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of this application;
[0025] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;
[0026] Figure 3 This is a partial structural diagram of this application. Figure 1 ;
[0027] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;
[0028] Figure 5 This is a partial structural diagram of this application. Figure 2 ;
[0029] Figure 6 This is a schematic diagram of the wind guide blade structure in this application. Figure 1 ;
[0030] Figure 7 This is a partial structural diagram of this application. Figure 3 ;
[0031] Figure 8 Schematic diagram of the wind guide blade structure in this application Figure 2 ;
[0032] Figure 9 Partial structural diagram of this application Figure 4 .
[0033] In the diagram: 1. Inner roof; 2. Insulation box; 21. Air inlet; 22. Built-in air duct; 23. Insulation cavity; 3. Hanging rod; 4. Insulating porcelain sleeve; 5. Porcelain sleeve cover plate; 51. Connecting hole; 52. Mounting hole; 53. Mounting groove; 6. Blowing assembly; 61. Air guide vane; 62. Adjustment assembly; 62. Rotating component; 621. Linkage groove; 622. First elastic component; 623. Rotating shaft; 63. Manual adjustment valve; 7. Air inlet fan; 8. Electric heater; 9. Thermometer; 10. Detailed Implementation
[0034] The present application will now be further described with reference to the accompanying drawings and specific embodiments.
[0035] Example 1:
[0036] like Figure 1 and Figure 2 As shown, a ceramic sleeve hot air blowing device includes an inner top 1, an insulated box 2 with an insulated cavity 23, a hanging rod 3, an insulating ceramic sleeve 4, and a ceramic sleeve cover plate 5. The insulated box 2 is fixed above the inner top 1. The insulating ceramic sleeve 4 is disposed inside the insulated cavity 23 and fixed above the inner top 1. The ceramic sleeve cover plate 5 is installed on the top of the insulating ceramic sleeve 4. The upper end of the hanging rod 3 is connected to the ceramic sleeve cover plate 5. The ceramic sleeve cover plate 5 is provided with several connecting holes 51 for guiding the hot air in the insulated cavity 23 into the interior of the insulating ceramic sleeve 4. The insulated box 2 is provided with an air inlet 21. The ceramic sleeve cover plate 5 is equipped with a blowing assembly 6. The blowing assembly 6 includes several air guide blades 61 and an adjustment assembly 62 for adjusting the tilt direction of the air guide blades 61. The air guide blades 61 are correspondingly arranged with the connecting holes 51 to guide the hot air introduced through the connecting holes 51 to the inner wall surface of the insulating ceramic sleeve 4.
[0037] In the above technical solution, the hot air entering through the air inlet 21 flows within the insulation cavity 23 and enters the interior of the insulating porcelain sleeve 4 through the connecting hole 51. Guided by the air guide vanes 61, the hot air flows evenly along the inner wall surface, effectively preventing dust accumulation on the inner wall and avoiding condensation on the inner wall of the insulating porcelain sleeve 4, thus improving insulation performance. By adjusting the tilt angle of the air guide vanes 61 using the adjusting component 62, the blowing path of the hot air on the inner wall of the insulating porcelain sleeve 4 can be changed, effectively avoiding the problem of dust accumulation caused by insufficient airflow in some areas (or prolonged lack of hot air), ensuring that the entire inner wall surface is evenly swept, effectively improving the cleaning effect of the inner wall of the porcelain sleeve and extending the equipment's operating cycle.
[0038] Specifically, in this embodiment, the side wall of the insulation box 2 has an internal air duct 22, the air inlet 21 is located in the internal air duct 22, the internal air duct 22 is provided with a manual regulating valve 7 for adjusting the air volume, the internal air duct 22 is equipped with an embedded air intake fan 8, the insulation box 2 is provided with an electric heater 9 and a thermometer 10, a part of the heating tube of the electric heater 9 is located in the air inlet 21, and the other part of the electric heater 9 is wrapped around the outside of the bottom of the insulating porcelain sleeve 4.
[0039] In the above technical solution, the cold air is preheated by the electric heater 9 after entering. The purified cold air can be directly introduced into the insulation box 2 and heated to near the internal temperature of the insulation box 2. This eliminates the need to share an external fan system to maintain high air pressure to overcome the resistance loss of long-distance pipeline transportation, thus avoiding increased energy consumption. The built-in air duct 22 and air intake fan 8 facilitate use and maintenance. The elimination of a complex pipeline system reduces initial investment costs. Another part of the electric heater 9 is wrapped around the outside of the bottom of the insulating porcelain sleeve 4, which can raise the temperature of the insulating porcelain sleeve 4 and prevent condensation due to temperature difference, further ensuring the insulation performance of the internal electrical components. By setting a thermometer 10 to monitor the temperature inside the insulation box 2 in real time, combined with the automatic adjustment of the electric heater 9, constant temperature control inside the box can be achieved, further improving the energy efficiency and stability of the hot air circulation system.
[0040] Preferred, such as Figures 5 to 9 The radial plane passing through the center of the connecting hole 51 on the insulating porcelain sleeve 4 is the first plane. The angle α between the air guiding surface of the guide vane 61 and the first plane corresponding to the connecting hole 51 is an acute angle, so that the hot air flows in a spiral shape along the inner wall of the insulating porcelain sleeve 4 after being guided by the air guiding vane 61. In the above technical solution, the air guiding surface of the air guiding vane 61 guides the airflow at a certain angle, forming a spiral airflow along the inner wall, which effectively improves the efficiency of removing dust accumulated on the inner wall.
[0041] Example 2:
[0042] like Figures 1 to 6 As shown, based on Embodiment 1, the air guide vane 61 is provided with a rotating shaft 63, which is rotatably connected to the ceramic sleeve cover plate 5. The upper end of the air guide vane 61 extends above the ceramic sleeve cover plate 5. The adjusting assembly 62 includes a rotating component 621, which is rotatably connected to the ceramic sleeve cover plate 5 via a bearing and links the upper ends of all air guide vanes 61. The rotating component 621 is provided with several linkage grooves 622, and the upper end of the air guide vane 61 extends into the corresponding linkage groove 622 and abuts against the side wall of the corresponding linkage groove 622. By rotating the rotating component 621, the tilt angle of each air guide vane 61 is adjusted to change the direction of the hot air flow.
[0043] In the above technical solution, the rotating component 621 has a ring structure. The tilt angle of all guide vanes 61 can be adjusted synchronously through a single rotating component 621, ensuring that the airflow direction of each connecting hole 51 is consistent and adjustable. This avoids mutual interference of airflow between guide vanes 61 due to asynchronous adjustment, improving purging uniformity and control accuracy. Furthermore, adjusting all guide vanes 61 through a single rotating component 621 requires only one drive source, significantly simplifying structural complexity and control difficulty, and reducing maintenance costs. The linkage between the rotating component 621 and the guide vanes 61 is achieved by the abutting action of the upper end of the guide vane 61 into the side wall of the corresponding linkage groove 622. When the rotating component 621 rotates, the side wall of the linkage groove 622 pushes the upper end of the guide vane 61, causing it to deflect synchronously around the axis 63, ensuring that the tilt angle of each guide vane 61 is consistent. The linkage groove 622 has a simple and reliable structural design, effectively avoiding slippage or jamming, and ensuring a smooth and stable adjustment process.
[0044] Preferably, the ceramic sleeve cover plate 5 is provided with mounting holes 52 matching the number of air guide blades 61. The upper end of the air guide blade 61 passes through the corresponding mounting hole 52 and extends into the linkage groove 622. Mounting grooves 53 are provided on both sides of the mounting hole 52. The rotating shaft 63 of the air guide blade 61 is rotatably connected to the mounting groove 53. The mounting groove 53 is open at the top. The rotating component 621 closes the top of the mounting hole 52 and the mounting groove 53.
[0045] In the above technical solution, an opening is provided above the mounting groove 53 to facilitate the processing of the mounting groove 53, thereby reducing processing costs. Simultaneously, this design also facilitates the installation and positioning of the guide vane 61 shaft 63, improving assembly efficiency. The rotating component 621 seals the top of the mounting hole 52 and the mounting groove 53, preventing the intrusion of external impurities and further enhancing the stability of system operation. The shaft 63 and the guide vane 61 are connected by an interference fit or a non-circular joint to ensure a stable connection and torque transmission, preventing rotational failure due to loosening. During assembly, first, the upper end of the guide vane 61 is passed through the mounting hole 52 from bottom to top. Then, the shaft 63 is assembled with the guide vane 61 body above the mounting hole 52. Finally, the shaft 63 is inserted downwards into the mounting groove 53 and fixed, ensuring a simple and efficient installation process.
[0046] Understandably, in one embodiment, a first elastic element 623 is provided between the rotating component 621 and the ceramic sleeve cover plate 5 to provide a preload force so that the rotating component 621 rotates in the forward direction relative to the ceramic sleeve cover plate 5. The hot air blown in through the connecting hole 51 deflects the guide vane 61, thereby causing the rotating component 621 to rotate in the opposite direction against the preload force of the first elastic element 623; an air inlet fan 8 is installed in the air inlet 21. Figure 5 and Figure 6 The axis of the rotating shaft 63 in the guide vane 61 is parallel to the guide surface.
[0047] In the above technical solution, the first elastic element 623 can be either a torsion spring or a telescopic spring. When hot air is blown in through the connecting hole 51, the airflow pushes the guide vane 61 to deflect, thereby causing the rotating element 621 to rotate in the opposite direction against the preload of the first elastic element 623. When the thrust of the hot air and the preload of the first elastic element 623 reach equilibrium, the tilt angle of the guide vane 61 tends to stabilize. When it is necessary to adjust the angle of the guide vane 61, it is only necessary to increase or decrease the airflow entering the insulation box 2 through the air inlet 21 to change the air velocity of the hot air blown into the insulating porcelain sleeve 4 through the connecting hole 51, thereby changing the thrust of the hot air on the guide vane 61 and realizing the dynamic adjustment of the tilt angle of the guide vane 61. When an independent air intake fan 8 is set in each insulation box 2, the airflow of each insulation box 2 can be adjusted by controlling the power of the air intake fan 8, realizing the differentiated adjustment of the angle of the guide vane 61 in different areas, thereby dynamically optimizing the airflow distribution according to the equipment operating status and changes in ambient temperature. In the above technical solution, no electric drive component or additional transmission device is required on the top of the ceramic sleeve cover plate 5, ensuring the insulation between the top of the ceramic sleeve cover plate 5 and other locations inside the insulation box 2 while avoiding the insulation risk caused by the introduction of external control lines, thus improving overall electrical safety. Since the entire purging assembly 6 is always located inside the insulation box 2 in a high-temperature environment, and no electronic components are used, damage to the control components from high temperatures and dust is effectively avoided, significantly improving the long-term stability and reliability of the system. In the above technical solution, the axis of the rotating shaft 63 in the guide vane 61 remains parallel to the guide surface. Under the thrust of hot air, the guide vane 61 can obtain greater torque (the thrust of hot air on the guide vane 61 is perpendicular to the axis of the rotating shaft 63), improving the sensitivity and stability of the rotation response.
[0048] Understandably, in another embodiment, the ceramic sleeve cover plate 5 is provided with an electric drive unit that drives the rotating component 621 to rotate. The electric drive unit drives the rotating component 621 to rotate in both directions, thereby driving the guide vane 61 to achieve precise angle adjustment. The electric drive unit can be a stepper motor or a servo motor.
[0049] Understandably, in another embodiment, such as Figures 7 to 8 The axis of the rotating shaft 63 in the guide vane 61 forms a right angle with the first plane of the corresponding connecting hole 51, and the axis of the rotating shaft 63 in the guide vane 61 forms an acute angle with the guide surface. This causes the hot air to flow in a spiral shape along the inner wall of the insulating porcelain sleeve 4 after being guided by the guide vane 61. In the above technical solution, the guide surface of the guide vane 61 guides the airflow at a certain angle, forming a spiral airflow along the inner wall, effectively improving the efficiency of removing dust accumulated on the inner wall.
[0050] Example 3:
[0051] Based on Embodiment 1, the guide vane 61 is provided with a rotating shaft 63, which is rotatably connected to the ceramic sleeve cover plate 5. The adjusting assembly 62 includes several second elastic elements, which are connected to the corresponding guide vane 61 and the ceramic sleeve cover plate 5. These second elastic elements provide elastic force to keep the guide vane 61 in its initial position. The hot air blown in through the connecting hole 51 causes the guide vane 61 to deflect against the elastic force of the second elastic elements, thereby changing the tilt angle of the guide vane 61 and thus changing the direction of the hot airflow. The axis of the rotating shaft 63 in the guide vane 61 is parallel to the guide surface.
[0052] In the above technical solution, the second elastic element provides elasticity to keep the guide vane 61 in its initial position. When hot air is blown in through the connecting hole 51, the airflow pushes the guide vane 61 to deflect, thereby causing the rotating element 621 to deflect against the elasticity of the second elastic element. When the thrust of the hot air and the elasticity of the second elastic element reach equilibrium, the tilt angle of the guide vane 61 tends to stabilize. When it is necessary to adjust the angle of the guide vane 61, it is only necessary to increase or decrease the airflow entering the insulation box 2 through the air inlet 21, which changes the wind speed of the hot air blown into the insulating porcelain sleeve 4 through the connecting hole 51, thereby changing the magnitude of the thrust of the hot air on the guide vane 61 and realizing the dynamic adjustment of the tilt angle of the guide vane 61. In the above technical solution, no electric drive component or additional transmission device is required on the top of the porcelain sleeve cover plate 5, which ensures the insulation between the top of the porcelain sleeve cover plate 5 and other positions inside the insulation box 2, while avoiding the insulation risk caused by the introduction of external control lines, thus improving the overall electrical safety. Since the entire purging assembly 6 is always located inside the insulation box 2, in a high-temperature environment, and does not use electronic components, damage to the control components from high temperature and dust is effectively avoided, significantly improving the long-term stability and reliability of the system. In the above technical solution, the axis of the rotating shaft 63 in the guide vane 61 remains parallel to the guide surface. Under the thrust of hot air, the guide vane 61 can obtain a greater torque (the thrust of hot air on the guide vane 61 is perpendicular to the axis of the rotating shaft 63), improving the sensitivity and stability of the rotation response.
[0053] Example 4:
[0054] Based on Embodiment 1, the adjustment assembly includes several electric drive components, which drive the corresponding air guide vanes 61 to adjust their deflection direction. In the above technical solution, the forward and reverse rotation of the electric drive components is controlled by electrical signals to achieve precise adjustment of the tilt angle of the air guide vanes 61. The electric drive components can be stepper motors or servo motors.
Claims
1. A ceramic sleeve hot air blowing device, comprising an inner top, an insulated box with an insulated cavity, a hanging rod, an insulating ceramic sleeve, and a ceramic sleeve cover plate, wherein the insulated box is fixed above the inner top, the insulating ceramic sleeve is disposed inside the insulated cavity and fixed above the inner top, the ceramic sleeve cover plate is installed on the top of the insulating ceramic sleeve, the upper end of the hanging rod is connected to the ceramic sleeve cover plate, the ceramic sleeve cover plate is provided with a plurality of connecting holes for guiding hot air from the insulated cavity into the interior of the insulating ceramic sleeve, and the insulated box is provided with an air inlet, characterized in that... The porcelain sleeve cover is equipped with a blowing assembly, which includes several guide vanes and an adjustment assembly for adjusting the tilt direction of the guide vanes. The guide vanes are arranged corresponding to the connecting holes to guide the hot air introduced through the connecting holes to the inner wall surface of the insulating porcelain sleeve. The air guide blade is provided with a rotating shaft, which is rotatably connected to the ceramic sleeve cover plate. The upper end of the air guide blade extends above the ceramic sleeve cover plate. The adjustment component includes a rotating part, which is rotatably connected to the ceramic sleeve cover plate and linked to the upper end of all air guide blades. The tilt angle of each air guide blade can be adjusted by rotating the rotating part. Alternatively, the air guide vane is provided with a rotating shaft, which is rotatably connected to the ceramic sleeve cover plate. The adjustment component includes several second elastic elements, which are connected to the corresponding air guide vane and the ceramic sleeve cover plate. They are used to provide elastic force to keep the air guide vane in the initial position. The hot air blown in through the connecting hole blows the air guide vane to overcome the elastic force of the second elastic elements and deflect, thereby changing the tilt angle of the air guide vane.
2. The ceramic sleeve hot air blowing device according to claim 1, characterized in that, The rotating component is provided with several linkage slots, and the upper end of the air guide blade extends into the corresponding linkage slot and abuts against the side wall of the corresponding linkage slot.
3. The ceramic sleeve hot air blowing device according to claim 1, characterized in that, A first elastic element is provided between the rotating component and the porcelain sleeve cover plate to provide a pre-tightening force so that the rotating component rotates in the forward direction relative to the porcelain sleeve cover plate. The hot air blown in through the connecting hole blows the guide vane to deflect, thereby driving the rotating component to overcome the pre-tightening force of the first elastic element and rotate in the opposite direction. An air inlet fan is installed at the air inlet.
4. The ceramic sleeve hot air blowing device according to claim 1, characterized in that, The adjustment assembly also includes an electric drive component, which drives the rotating component to rotate.
5. The ceramic sleeve hot air blowing device according to claim 1, characterized in that, The radial plane passing through the center of the connecting hole on the insulating porcelain sleeve is the first plane. The angle α between the air guide surface of the air guide blade and the first plane corresponding to the connecting hole is an acute angle, so that the hot air flows in a spiral shape along the inner wall of the insulating porcelain sleeve after being guided by the air guide blade. The axis of the rotating shaft in the air guide blade is parallel to the air guide surface.
6. The ceramic sleeve hot air blowing device according to claim 1, characterized in that, The ceramic sleeve cover plate is provided with mounting holes matching the number of air guide blades. The upper end of the air guide blade passes through the corresponding mounting hole and extends into the linkage groove. Mounting grooves are provided on both sides of the mounting hole. The rotating shaft of the air guide blade is rotatably connected to the mounting groove. The mounting groove is open at the top. The rotating part closes the top of the mounting hole and the mounting groove.
7. The ceramic sleeve hot air blowing device according to claim 1, characterized in that, The radial plane passing through the center of the connecting hole on the insulating porcelain sleeve is the first plane, and the angle α between the air guide surface of the air guide blade and the first plane corresponding to the connecting hole is an acute angle, so that the hot air flows in a spiral shape along the inner wall of the insulating porcelain sleeve after being guided by the air guide blade.
8. The ceramic sleeve hot air blowing device according to claim 1, characterized in that, The side wall of the insulation box has a built-in air duct, the air inlet is located in the built-in air duct, the built-in air duct is equipped with a manual regulating valve for adjusting the air volume, the built-in air duct is equipped with an embedded air intake fan, the insulation box is equipped with an electric heater and a thermometer, part of the heating tube of the electric heater is located at the air inlet, and the other part of the electric heater is wrapped around the outside of the bottom of the insulating porcelain sleeve.