Energy-saving heat exchange device of waste oil regeneration rectification catalytic system

Abstract

The application discloses an energy-saving heat exchange device of a waste oil regeneration rectification catalytic system, and relates to the technical field of heat exchange devices, which comprises a fixed shell, an air inlet pipeline for air inlet is fixedly arranged in the fixed shell, a heat preservation shell for improving heat preservation effect is fixedly arranged in the fixed shell, a water storage groove is arranged in the fixed shell, and the energy-saving heat exchange device of the waste oil regeneration rectification catalytic system further comprises a rotating heating mechanism arranged in the fixed shell. In working, the rotating heating mechanism is started to drive the rotating shaft to rotate, the rotating shaft drives the air inlet disc to rotate, the air inlet disc drives the hot gas in the concentric pipeline to rotate, so that the diffusion area of the hot gas is increased, the surface of the hot gas pipeline can be fully contacted with the heat exchange medium through rotation, local heat exchange dead angles are avoided, local overheating or insufficient heat exchange caused by medium stagnation is eliminated, and the overall heat transfer efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of heat exchange device technology, specifically to an energy-saving heat exchange device for a waste oil regeneration distillation catalytic system. Background Technology

[0002] Energy-saving heat exchange devices are specialized equipment that transfer heat between two or more fluids while minimizing energy loss, improving heat exchange efficiency, and reducing operating energy consumption.

[0003] Patent publication number CN223138417U relates to a system comprising an outer shell, an insulated shell, an inner shell, a heat exchange tube support, and hot water pipes. The insulated shell is located inside the outer shell, and the inner shell is located inside the insulated shell. Two heat exchange tube supports are symmetrically and slidably disposed on both sides of the inner shell. The inner side of each hot water pipe has upper and lower grooves, and two hot water pipes are slidably disposed within the grooves of the heat exchange tube supports. A cold water pipe is spirally wound around the outer side of the inner shell. This system offers numerous advantages, including high-efficiency heat exchange, energy saving, reduced heat loss, easy installation and maintenance, excellent sealing performance, ease of movement, compact structure, and environmental friendliness, making it an ideal choice for various heat exchange applications.

[0004] While this device boasts numerous advantages, including high-efficiency heat exchange, energy saving, reduced heat loss, easy installation and maintenance, excellent sealing performance, portability, compact structure, and environmental friendliness, making it an ideal choice for various heat exchange applications, its heating efficiency is relatively low. It struggles to quickly raise the internal temperature of the equipment, thus reducing its operating efficiency. Furthermore, the direct entry of hot air during heating leaves no residual heat inside the equipment, further diminishing its heat exchange efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an energy-saving heat exchange device for a waste oil regeneration distillation catalytic system, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving heat exchange device for a waste oil regeneration distillation catalytic system, comprising a fixed outer shell, an air intake pipe for air intake being fixedly connected inside the fixed outer shell, an insulation shell for improving heat preservation being fixedly installed inside the fixed outer shell, a water collection tank being provided inside the fixed outer shell, and the energy-saving heat exchange device for the waste oil regeneration distillation catalytic system further comprising a rotary heating mechanism installed inside the fixed outer shell and an indirect air intake mechanism installed inside the fixed outer shell; The rotary heating mechanism includes a motor mounted on the fixed housing, a rotating shaft mounted on the output end of the motor, an air inlet plate mounted on the end of the rotating shaft away from the motor, a concentric pipe for heat exchange mounted on the air inlet plate, and a rotating disk mounted inside the fixed housing. The output end of the motor rotatably penetrates the interior of the fixed housing, the circumferential surface of the rotating shaft contacts the interior of the fixed housing, the circumferential surface of the air inlet plate is rotatably connected to the interior of the fixed housing, and the interior of the fixed housing and the rotating disk are fixedly connected for rotation to increase the heating area.

[0007] The indirect air intake mechanism includes a recovery pipe installed inside the fixed housing, an air outlet pipe installed inside the fixed housing, an air intake hole opened on the air intake plate, and a baffle plate installed inside the fixed housing, for indirect air intake.

[0008] During operation, the starter motor drives the rotating shaft to rotate, which in turn drives the intake disc to rotate. The intake disc then rotates the hot air inside the concentric pipe, thereby increasing the diffusion area of ​​the hot air. The rotation ensures that the surface of the hot air pipe is in full contact with the heat exchange medium, avoiding dead zones in local heat exchange and eliminating local overheating or insufficient heat exchange caused by medium stagnation, thus improving the overall heat transfer efficiency. While the air is being rotated for intake, the rotating shaft drives the intake disc to rotate, causing the intake hole to rotate to one-quarter of the way down from the baffle plate, achieving indirect air intake. This avoids excessively high heat exchange temperatures caused by continuous air intake, precisely matching the constant temperature requirements of distillation and catalysis, preventing the medium from overheating and coking or temperature deviation from affecting oil quality. It eliminates the need for continuous transport of the hot medium, reducing waste heat loss and power consumption during the transport process, meeting the core energy-saving requirements of the unit, and further improving the overall thermal efficiency of the system.

[0009] The baffle plate contacts the outer wall of the air intake disc, and the circumferential surface of the rotating shaft contacts the interior of the baffle plate.

[0010] The energy-saving heat exchange device also includes a hot gas acceleration mechanism installed on the fixed outer casing to improve heat exchange efficiency; The hot air acceleration mechanism includes a gear ring installed inside the fixed housing, a rotating rod installed on the air intake plate, a stirrer plate installed on the rotating rod for accelerating the hot airflow, and a gear one installed on the rotating rod. The gear ring contacts the outer wall of the air intake plate, the gear one meshes with the gear ring, and the circumferential surface of the gear ring contacts the interior of the rotating plate.

[0011] The energy-saving heat exchange device also includes an automatic air outlet mechanism installed inside the insulation shell, used to automatically close the air outlet pipe; The automatic air outlet mechanism includes an isolation plate installed inside the insulation shell, a sliding block installed on the isolation plate, a pulley installed inside the sliding block, and a protruding plate installed on the rotating disk.

[0012] During the intake process, the intake disc drives the rotating rod to rotate, which in turn drives gear one to rotate. Gear one meshes with the gear ring, causing it to rotate on its own axis. This rotation of gear one and the rotating rod turbulently disperses the hot air emanating from the concentric pipe, thereby improving the efficiency of hot air diffusion in the concentric pipe. The faster hot air diffusion speed allows for rapid filling of the heat exchange chamber and flow channel, shortening the contact time difference between the hot air and the medium to be exchanged, increasing the heat exchange contact area, and enabling rapid transfer of waste heat. This significantly improves the waste heat recovery and utilization rate of each stage of the heat exchange unit. During the exhaust process, the rotating disc drives the convex plate to rotate. The rotating convex plate contacts the circumference of the pulley, squeezing the pulley and causing the sliding block to move. The sliding block moves the isolation plate to close the exhaust port of the exhaust pipe, achieving automatic exhaust. This automatically removes air trapped in the heat exchange chamber and pipe, as well as non-condensable gases generated by oil and gas condensation. This prevents air blockage from hindering the contact between the hot medium and the medium to be exchanged, ensuring smooth hot air diffusion and efficient transfer of waste heat, avoiding a decrease in heat exchange efficiency, and reducing component wear and the probability of failure.

[0013] Springs are installed inside the isolation plate and the insulation shell, the circumferential surface of the pulley contacts the outer wall of the rotating disk, and the outer wall of the convex plate has an inclined surface.

[0014] The energy-saving heat exchange device is installed in the drying mechanism inside the fixed shell to discharge internal water vapor; The drying mechanism includes an elastic telescopic column installed inside the fixed housing, a condensation plate installed at the elastic telescopic end of the elastic telescopic column, an overlapping plate installed on the condensation plate, an arc plate installed on the condensation plate, and a drainage pipe installed inside the fixed housing. The condensation plate is in contact with a water collection tank inside the fixed housing, the overlapping plate is in contact with the water collection tank inside the fixed housing, and the drainage pipe is connected to the water collection tank inside the fixed housing. The top of the arc plate has an arc surface, and the interior of the overlapping plate has a drainage hole.

[0015] The energy-saving heat exchange device also includes an air dehumidification mechanism installed on the air intake plate to ensure the dryness of the air inside the fixed housing; The air dehumidification mechanism further includes a drying box on the air intake plate, a connecting rod installed inside the drying box, an agitator plate installed on the connecting rod for agitating the dried particles, and a gear II installed on the connecting rod.

[0016] During hot air circulation, the condensing plate condenses water vapor onto its surface, dripping the condensed vapor into a water collection tank inside the fixed outer shell. The rotating convex plate moves the arc plate downwards, which in turn moves the condensing plate downwards, causing the overlapping plate to move downwards. This downward movement of the overlapping plate aligns the drain outlet with the drain pipe outlet, allowing the condensed vapor to be discharged through the drain pipe. This prevents water vapor from adhering to the heat exchange wall surface and forming a water film, which would hinder heat transfer between the hot air and the heat exchange medium, ensuring stable waste heat recovery efficiency and avoiding heat transfer coefficient attenuation. No manual adjustment is required. The system automatically drains and removes water vapor, reducing downtime for maintenance. When the air intake plate heats the concentric pipes, it rotates the drying box, which in turn dries the inside of the fixed shell with drying particles. Gear 2 meshes with the gear ring and rotates, which in turn drives the stirring plate to agitate the drying particles, improving the drying effect. Agitating the desiccant breaks up its accumulation and accelerates the drying process, quickly reducing internal humidity and preventing heat exchange efficiency loss and equipment corrosion caused by residual water vapor.

[0017] The drying box contains drying particles. The connecting rod is in contact with the outer wall of the rotating disk. The second gear meshes with the gear ring. The stirring plate is in contact with the interior of the drying box. The second gear is in contact with the outer wall of the air inlet disk.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, during operation, the starting motor drives the rotating shaft to rotate, which in turn drives the air intake disc to rotate. The air intake disc drives the hot air inside the concentric pipe to rotate, thereby increasing the diffusion area of ​​the hot air. The rotation allows the surface of the hot air pipe to fully contact the heat exchange medium, avoiding dead zones in local heat exchange, eliminating local overheating or insufficient heat exchange caused by medium stagnation, and improving the overall heat transfer efficiency. While rotating to intake air, the rotating shaft drives the air intake disc to rotate, and the air intake disc drives the air intake hole to rotate to one-quarter of the area where the baffle plate is not blocked, realizing indirect air intake. This avoids excessively high heat exchange temperature caused by continuous air intake, accurately matching the constant temperature requirements of distillation and catalysis, preventing the medium from overheating and coking or temperature deviation from affecting oil quality. There is no need to continuously transport the hot medium, reducing waste heat loss and power consumption during the transport of the hot medium, meeting the core energy-saving requirements of the device, and further improving the overall thermal efficiency of the system.

[0019] 2. In this invention, while the air intake is rotating, the intake disc drives the rotating rod to rotate, which in turn drives gear one to rotate. Gear one meshes with the gear ring, and the rotation of gear one causes it to rotate on its own axis. This rotation of gear one and the rotating rod turbulently circulates the hot air emanating from the concentric pipe, thereby improving the efficiency of hot air diffusion in the concentric pipe. The faster hot air diffusion speed allows for quick filling of the heat exchange chamber and flow channel, shortening the contact time difference between the hot air and the medium to be exchanged, increasing the heat exchange contact area, and enabling rapid transfer of residual heat, significantly improving efficiency. The waste heat recovery and utilization rate of each heat exchange unit; during air discharge, the rotating disk drives the convex plate to rotate, and the rotating convex plate contacts the circumferential surface of the pulley, thereby squeezing the pulley and driving the sliding block to move. The sliding block drives the isolation plate to move and close the air outlet of the air outlet pipe, realizing automatic exhaust, automatically discharging the air trapped in the heat exchange chamber and pipe, and the non-condensable gas generated by oil and gas condensation, preventing air blockage from hindering the contact between the heat medium and the heat exchange medium, ensuring smooth diffusion of hot air and efficient transfer of waste heat, avoiding a decrease in heat exchange efficiency, and reducing component wear and failure probability.

[0020] 3. In this invention, during hot air circulation, the condensing plate condenses water vapor onto the condensation surface. The condensed water vapor drips into a water collection tank inside the fixed outer shell. The convex plate rotates, causing the arc plate to move downwards. The arc plate then moves the condensing plate downwards, which in turn moves the overlapping plate downwards. The downward movement of the overlapping plate causes the drain outlet to align with the drain outlet of the drain pipe, thus allowing the condensed water vapor to be discharged through the drain pipe. This prevents water vapor from adhering to the heat exchange wall surface and forming a water film, which would hinder the heat transfer between the hot air and the heat exchange medium. This ensures stable waste heat recovery efficiency, avoids heat transfer coefficient attenuation, and eliminates the need for further heat exchange. It requires regular manual inspection and drainage of water vapor to achieve automated drainage and reduce the frequency of downtime maintenance. When the air intake plate drives the concentric pipe to heat, the air intake plate drives the drying box to rotate. The drying box drives the drying particles to dry the inside of the fixed shell. The gear two meshes with the internal gear ring and rotates, thereby driving the gear two to drive the stirring plate to stir the drying particles, which improves the drying effect of the drying particles. Stirring the desiccant can break the desiccant accumulation state, while accelerating the drying process, quickly reducing the internal humidity, and preventing the heat exchange efficiency reduction and equipment corrosion caused by water vapor residue. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the position and structure of the intake disc and concentric pipes of the present invention; Figure 3 This is a schematic diagram showing the position and structure of the air intake disc and air intake port of the present invention; Figure 4 This is a schematic diagram showing the position and structure of the rotating rod and the agitator plate of the present invention; Figure 5This is a schematic diagram showing the position and structure of the partition and sliding block of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of the structural position at point A in the middle; Figure 7 This is a schematic diagram showing the position and structure of the elastic telescopic column and the condensation plate of the present invention; Figure 8 This is a schematic diagram showing the position and structure of the stirring plate and drying box of the present invention.

[0022] The meanings of the labels in the diagram are as follows: 1. Fixed outer shell; 2. Air inlet pipe; 3. Recycling pipe; 4. Air outlet pipe; 5. Insulation shell; 6. Motor; 7. Rotating shaft; 8. Air inlet plate; 9. Concentric pipe; 10. Rotating disc; 11. Baffle plate; 12. Air inlet; 13. Hot air acceleration mechanism; 131. Gear ring; 132. Rotating rod; 133. Stirring plate; 134. Gear one; 135. Isolation plate; 136. Sliding block; 137. Pulley; 138. Convex plate; 14. Drying mechanism; 141. Elastic telescopic column; 142. Condensation plate; 143. Overlapping plate; 144. Arc plate; 145. Drainage pipe; 146. Connecting rod; 147. Stirring plate; 148. Gear two; 149. Drying box. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1: Please see Figures 1-3 One embodiment of the present invention is: an energy-saving heat exchange device for a waste oil regeneration distillation catalytic system, comprising a fixed outer shell 1, an air intake pipe 2 for air intake fixedly passing through the inside of the fixed outer shell 1, an insulation shell 5 for improving the heat preservation effect fixedly installed inside the fixed outer shell 1, a water collection tank opened inside the fixed outer shell 1, and the energy-saving heat exchange device for the waste oil regeneration distillation catalytic system further comprising a rotary heating mechanism installed inside the fixed outer shell 1 and an indirect air intake mechanism installed inside the fixed outer shell 1. The rotary heating mechanism includes a motor 6 mounted on a fixed housing 1, a rotating shaft 7 mounted on the output end of the motor 6, an air inlet plate 8 mounted on the end of the rotating shaft 7 away from the motor 6, a concentric pipe 9 mounted on the air inlet plate 8 for heat exchange, and a rotating disk 10 mounted inside the fixed housing 1. The output end of the motor 6 rotates through the interior of the fixed housing 1, the circumferential surface of the rotating shaft 7 contacts the interior of the fixed housing 1, the circumferential surface of the air inlet plate 8 is rotatably connected to the interior of the fixed housing 1, and the interior of the fixed housing 1 and the rotating disk 10 are fixedly connected for rotation to increase the heating area.

[0025] The indirect air intake mechanism includes a recovery pipe 3 installed inside the fixed housing 1, an air outlet pipe 4 installed inside the fixed housing 1, an air intake hole 12 opened on the air intake plate 8, and a baffle plate 11 installed inside the fixed housing 1, for indirect air intake.

[0026] The baffle plate 11 contacts the outer wall of the air intake plate 8, and the circumferential surface of the rotating shaft 7 contacts the interior of the baffle plate 11.

[0027] In this embodiment, before operation, the top of the distillation column and the fixed outer shell 1 are connected via the inlet pipe 2 to transport the high-temperature oil and gas from the top of the column (180-220℃) and recover its high-quality waste heat. The catalytic reactor is connected to the fixed outer shell 1. The inlet pipe 2 transports the catalytic circulating oil to be heated, and the outlet pipe 4 transports the catalytic circulating oil heated by waste heat, achieving continuous heating and circulation of the catalytic circulating oil. The recovery pipe 3 recovers excess waste heat and returns it to the interior of the fixed outer shell 1. During operation, the operator starts the motor 6 via the control panel. The motor 6 drives the rotating shaft 7 to rotate via its output end. The rotation of the rotating shaft 7 drives the inlet disc 8 to rotate. Before rotation, the inlet disc... 8. Hot gas is transported into the interior of the concentric pipe 9. The concentric pipe 9 drives the hot gas to be transported into the interior of the rotating disk 10. At the same time, the air inlet disk 8 drives the concentric pipe 9 to rotate. The rotation of the concentric pipe 9 will drive the hot gas inside to rotate, thereby increasing the diffusion area of ​​the hot gas. The rotation can make the surface of the hot gas pipe fully contact the heat exchange medium, avoid local heat exchange dead zones, eliminate local overheating or insufficient heat exchange caused by medium stagnation, improve the overall heat transfer efficiency, and ensure the waste heat recovery effect. The rotation can optimize the flow state of the high-temperature medium in the hot gas pipe, avoid local gas blockage and liquid accumulation, and is especially suitable for alternating working conditions of negative pressure in distillation system and high pressure in catalytic system, reducing the impact of pressure fluctuation on heat exchange and reducing the corrosion and wear of coking on the hot gas pipe wall. While rotating for air intake, the shaft 7 drives the intake disc 8 to rotate, which in turn drives the intake port 12 to rotate. One-quarter of the baffle plate 11 is unobstructed. As the intake disc 8 rotates and the intake port 12 rotates, it slowly moves to the unobstructed quarter of the baffle plate 11. At this point, hot air enters the interior of the fixed housing 1 through the intake pipe 2, then through the interior of the fixed housing 1 into the intake port 12, then through the intake port 12 into the interior of the intake disc 8, and finally through the intake disc 8 into the interior of the concentric pipe 9. As the intake disc 8 continues to rotate and moves away from the unobstructed quarter of the baffle plate 11, the intake disc 8 will drive the intake port 12 to rotate away from the unobstructed quarter. Opening one-quarter of the unobstructed portion of the baffle plate 11 stops the concentric pipe 9 from continuing to intake air, allowing the intake plate 8 to achieve intermittent air intake while rotating. Before intake, hot air accumulates inside the front side of the fixed outer casing 1, thus preheating the air and ensuring the temperature is maintained before delivery. Intermittent air intake can replenish the heat medium as needed, avoiding excessively high heat exchange temperatures caused by continuous air intake. This precisely matches the constant temperature requirements of distillation and catalysis, preventing the medium from overheating and coking or temperature deviation from affecting oil quality. It eliminates the need for continuous delivery of the heat medium, reducing residual heat loss and power consumption during the delivery process, meeting the core energy-saving requirements of the unit, and further improving the overall thermal efficiency of the system.

[0028] Example 2: Please see Figures 4-6 Based on the above embodiments, in another embodiment of the present invention, the energy-type heat exchange device further includes a hot gas acceleration mechanism 13 installed on the fixed housing 1 to improve the heat exchange efficiency. The hot air acceleration mechanism 13 includes a gear ring 131 installed inside the fixed housing 1, a rotating rod 132 installed on the air intake plate 8, a baffle plate 133 installed on the rotating rod 132 for accelerating the hot airflow, and a gear 134 installed on the rotating rod 132. The gear ring 131 contacts the outer wall of the air intake plate 8, the gear 134 meshes with the gear ring 131, and the circumferential surface of the gear ring 131 contacts the interior of the rotating disk 10.

[0029] The energy-saving heat exchange device also includes an automatic air outlet mechanism installed inside the insulation shell 5, which is used to automatically close the air outlet pipe 4; The automatic air outlet mechanism includes an isolation plate 135 installed inside the insulation shell 5, a sliding block 136 installed on the isolation plate 135, a pulley 137 installed inside the sliding block 136, and a protruding plate 138 installed on the rotating disk 10.

[0030] Springs are installed inside the isolation plate 135 and the insulation shell 5. The circumferential surface of the pulley 137 contacts the outer wall of the rotating disk 10. The outer wall of the protruding plate 138 has an inclined surface.

[0031] In this embodiment, during operation: while rotating the intake, the intake disc 8 drives the concentric pipe 9 to rotate. The rotation of the concentric pipe 9 drives the internal hot air to rotate. At the same time, the intake disc 8 drives the rotating rod 132 to rotate. The rotation of the rotating rod 132 drives the gear 134 to rotate. The gear 134 meshes with the gear ring 131. At this time, the gear 134 rotates along the teeth inside the gear ring 131. Thus, the rotation of the gear 134 drives its own rotation. The gear 134 drives the rotating rod 132 to rotate, and the rotating rod 132 simultaneously drives the flow to be stirred. The plate 133 rotates, and the rotation of the baffle plate 133 will turbulent the hot air emitted from the concentric pipe 9, thereby improving the efficiency of hot air diffusion on the concentric pipe 9. The hot air diffusion speed is accelerated, which can quickly fill the heat exchange cavity and flow channel, shorten the contact time difference between the hot air and the medium to be heat exchanged, increase the heat exchange contact area, and allow waste heat to be transferred quickly. This greatly improves the waste heat recovery and utilization rate of each heat exchange unit, which meets the core energy-saving requirements of the device. The rotating baffle plate drives the hot air to diffuse evenly, preventing the overheating of the heat exchange wall caused by local accumulation of hot air. At the same time, the accelerated airflow can flush the wall surface, reducing the frequency of shutdown for cleaning. When venting, the concentric pipe 9 emits hot air, causing the rotating disk 10 to rotate. The rotating disk 10 then rotates the convex plate 138. The rotating convex plate 138, through its outer arc surface, contacts the circumferential surface of the pulley 137, thus pressing the pulley 137 and causing it to move. The pulley 137 then moves the sliding block 136, which in turn moves the isolation plate 135. The movement of the isolation plate 135 closes the vent of the vent pipe 4, stopping the venting. When the convex plate 138 leaves the circumferential surface of the pulley 137, the isolation plate 135 rebounds due to the spring between it and the insulation shell 5, allowing the isolation plate 135 to resume operation. The spring resets the isolation plate 135, which in turn drives the sliding block 136 to reset. The sliding block 136 then drives the pulley 137 to reset, thereby opening the vent hole of the vent pipe 4. When the arc surface of the convex plate 138 contacts the pulley 137, the vent pipe 4 closes the vent hole, achieving automatic venting. This automatically discharges air trapped in the heat exchange chamber and pipes, as well as non-condensable gases generated by oil and gas condensation. It prevents air blockage from hindering the contact between the heat medium and the heat exchange medium, ensuring smooth heat diffusion and efficient transfer of residual heat. This avoids a decrease in heat exchange efficiency, reduces component wear and the probability of failure, extends the service life of the heat exchange device and its supporting pipes, and reduces equipment maintenance costs.

[0032] Example 3: Please see Figures 7-8 Based on the above embodiments, in another embodiment of the present invention, the energy-saving heat exchange device is installed in the drying mechanism 14 inside the fixed housing 1 to discharge the internal water vapor. The drying mechanism 14 includes an elastic telescopic column 141 installed inside the fixed housing 1, a condensation plate 142 installed at the elastic telescopic end of the elastic telescopic column 141, an overlapping plate 143 installed on the condensation plate 142, an arc plate 144 installed on the condensation plate 142, and a drainage pipe 145 installed inside the fixed housing 1. The condensation plate 142 is in contact with a water collection tank inside the fixed housing 1, the overlapping plate 143 is in contact with a water collection tank inside the fixed housing 1, and the drainage pipe 145 is connected to a water collection tank inside the fixed housing 1. The top of the arc plate 144 has an arc surface, and the interior of the overlapping plate 143 has a drainage hole.

[0033] The energy-saving heat exchange device also includes an air dehumidification mechanism installed on the air inlet plate 8 to ensure the dryness of the air inside the fixed housing 1; The air dehumidification mechanism also includes a drying box 149 on the air intake plate 8, a connecting rod 146 installed inside the drying box 149, an agitator plate 147 installed on the connecting rod 146 for agitating the dried particles, and a gear 148 installed on the connecting rod 146.

[0034] Drying granules are placed inside the drying box 149. The connecting rod 146 is in contact with the outer wall of the rotating disk 10. The gear 148 meshes with the gear ring 131. The stirring plate 147 is in contact with the inside of the drying box 149. The gear 148 is in contact with the outer wall of the air inlet disk 8.

[0035] In this embodiment, during hot air circulation inside the insulation shell 5, water vapor is generated inside the insulation shell 5. At this time, the condensation plate 142 condenses the water vapor inside the fixed shell 1 onto the condensation surface. The condensed water vapor drips into the water collection tank inside the fixed shell 1. When the rotating disk 10 rotates, the rotation of the rotating disk 10 will drive the convex plate 138 to rotate. The rotation of the convex plate 138 will cause the inclined surface to contact the arc surface of the arc plate 144. The arc plate 144 will be squeezed downward by the inclined surface of the convex plate 138. The movement of the arc plate 144 will drive the condensation plate 142 to move downward. The downward movement of the condensation plate 142 will squeeze and contract the elastic telescopic end of the elastic telescopic column 141. At the same time, the condensation plate 142 will drive the overlapping plate 143 to move downward. The downward movement of the overlapping plate 143 will drive the drain outlet to move downward. The downward movement of the overlapping plate 143 will contact the drain pipe 1. The drain outlets of 45 overlap, so the condensed water vapor will be discharged through the drain pipe 145. When the convex plate 138 leaves the arc surface of the arc plate 144, the condensation plate 142 will be reset through the elastic telescopic end of the elastic telescopic column 141. The condensation plate 142 drives the overlapping plate 143 to be reset, and the drain hole of the overlapping plate 143 leaves the drain hole of the drain pipe 145. Thus, the drain pipe 145 will stop discharging water vapor, automatically condense and discharge the water vapor in the heat exchange chamber and pipe, prevent water vapor from adhering to the heat exchange wall surface to form a water film, hinder the heat transfer between the hot air and the heat exchange medium, ensure stable waste heat recovery efficiency, avoid heat transfer coefficient decay, eliminate the need for manual periodic inspection and discharge of water vapor, realize automated drainage, reduce the frequency of downtime maintenance, reduce the workload of operators, and avoid equipment failure caused by water vapor retention, further reducing maintenance costs. When the intake disc 8 drives the concentric pipe 9 to heat, the intake disc 8 will drive the drying box 149 to rotate, and the drying box 149 will drive the drying particles to rotate. The drying particles inside the drying box 149 dry the inside of the fixed outer shell 1. When the drying box 149 rotates for drying, it will drive the connecting rod 146 to rotate, and the connecting rod 146 will drive the stirring plate 147 to rotate. The connecting rod 146 will also drive the gear 148 to rotate. The gear 148 meshes with the inside of the gear ring 131, and the gear 148 rotates along the teeth inside the gear ring 131, thereby driving... The second gear 148 rotates, which in turn drives the connecting rod 146 to rotate. The connecting rod 146 then drives the stirring plate 147 to rotate inside the drying box 149. As the stirring plate 147 rotates inside the drying box 149, it stirs the drying particles, improving the drying effect. Stirring the desiccant breaks up its accumulation, allowing it to fully contact the moisture and residual humidity in the heat exchange chamber and pipes. This prevents the desiccant from becoming partially saturated or unused, while also accelerating the drying process, rapidly reducing internal humidity, and preventing heat exchange efficiency loss and equipment corrosion caused by residual moisture.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving heat exchange device for a waste oil regeneration distillation catalytic system, comprising a fixed outer shell (1), wherein an air intake pipe (2) for air intake is fixedly connected inside the fixed outer shell (1), an insulation shell (5) for improving heat preservation effect is fixedly installed inside the fixed outer shell (1), and a water collection tank is provided inside the fixed outer shell (1), characterized in that, The energy-saving heat exchange device also includes a rotary heating mechanism installed inside the fixed housing (1) and an indirect air intake mechanism installed inside the fixed housing (1); The rotary heating mechanism includes a motor (6) mounted on the fixed housing (1), a rotating shaft (7) mounted on the output end of the motor (6), an air intake plate (8) mounted on the end of the rotating shaft (7) away from the motor (6), a concentric pipe (9) mounted on the air intake plate (8) for heat exchange, and a rotating disk (10) mounted inside the fixed housing (1). The output end of the motor (6) rotates through the interior of the fixed housing (1). The circumferential surface of the rotating shaft (7) contacts the interior of the fixed housing (1). The circumferential surface of the air intake plate (8) is rotatably connected to the interior of the fixed housing (1). The interior of the fixed housing (1) and the rotating disk (10) are fixedly connected for rotation to increase the heating area. The indirect air intake mechanism includes a recovery pipe (3) installed inside the fixed housing (1), an air outlet pipe (4) installed inside the fixed housing (1), an air intake hole (12) opened on the air intake plate (8), and a baffle plate (11) installed inside the fixed housing (1) for indirect air intake. The energy-saving heat exchange device also includes a hot gas acceleration mechanism (13) installed on the fixed housing (1) to improve heat exchange efficiency; The hot air acceleration mechanism (13) further includes a gear ring (131) installed inside the fixed housing (1), a rotating rod (132) installed on the air intake plate (8), a swirl plate (133) installed on the rotating rod (132) for accelerating the hot air flow, and a gear (134) installed on the rotating rod (132). The gear ring (131) contacts the outer wall of the air intake plate (8), the gear (134) meshes with the gear ring (131), and the circumferential surface of the gear ring (131) contacts the interior of the rotating disk (10). The energy-saving heat exchange device also includes an automatic air outlet mechanism installed inside the insulation shell (5) for automatically closing the air outlet pipe (4). The automatic air outlet mechanism includes an isolation plate (135) installed inside the insulation shell (5), a sliding block (136) installed on the isolation plate (135), a pulley (137) installed inside the sliding block (136), and a protruding plate (138) installed on the rotating disk (10). The energy-saving heat exchange device also includes a drying mechanism (14) installed inside the fixed housing (1) for discharging internal water vapor; The drying mechanism (14) further includes an elastic telescopic column (141) installed inside the fixed housing (1), a condensation plate (142) installed at the elastic telescopic end of the elastic telescopic column (141), an overlapping plate (143) installed on the condensation plate (142), an arc plate (144) installed on the condensation plate (142), and a drainage pipe (145) installed inside the fixed housing (1).

2. The energy-saving heat exchange device of the waste oil regeneration distillation catalytic system according to claim 1, characterized in that: The barrier plate (11) is in contact with the outer wall of the air intake plate (8), and the circumferential surface of the rotating shaft (7) is in contact with the interior of the barrier plate (11).

3. The energy-saving heat exchange device of the waste oil regeneration distillation catalytic system according to claim 1, characterized in that: A spring is provided between the partition plate (135) and the interior of the insulation shell (5), the circumferential surface of the pulley (137) is in contact with the outer wall of the rotating disk (10), and the outer wall of the convex plate (138) is provided with an inclined surface.

4. The energy-saving heat exchange device of the waste oil regeneration distillation catalytic system according to claim 1, characterized in that: The condensation plate (142) is in contact with the water accumulation tank inside the fixed shell (1), the overlapping plate (143) is in contact with the water accumulation tank inside the fixed shell (1), the drainage pipe (145) is connected to the water accumulation tank inside the fixed shell (1), the top of the arc plate (144) is provided with an arc surface, and the interior of the overlapping plate (143) is provided with a drainage hole.

5. The energy-saving heat exchange device of the waste oil regeneration distillation catalytic system according to claim 1, characterized in that: The energy-saving heat exchange device also includes an air dehumidification mechanism installed on the air inlet plate (8) to ensure the dryness of the air inside the fixed shell (1); The air dehumidification mechanism further includes a drying box (149) installed on the air intake plate (8), a connecting rod (146) installed inside the drying box (149), an agitator plate (147) installed on the connecting rod (146) for agitating the dried particles, and a gear (148) installed on the connecting rod (146).

6. The energy-saving heat exchange device of the waste oil regeneration distillation catalytic system according to claim 5, characterized in that: The drying box (149) contains drying particles. The connecting rod (146) is in contact with the outer wall of the rotating disk (10). The gear two (148) meshes with the gear ring (131). The stirring plate (147) is in contact with the inside of the drying box (149). The gear two (148) is in contact with the outer wall of the air intake disk (8).

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