A direct heating paint drying room

Abstract

The present invention provides a direct-heat paint drying room for use in the paint drying field, comprising a cylindrical chamber, wherein a flow-turbulating device is disposed within the cylindrical chamber, the flow-turbulating device comprising an outer straight tube and an inner conical tube, wherein the outer straight tube and the inner conical tube are respectively provided with a first flow-turbulating blade and a second flow-turbulating blade, wherein the spiral directions of the first and second flow-turbulating blades are opposite, and the inner wall of the inner conical tube is further provided with a plurality of water-guiding grooves and exhaust grooves, wherein the exhaust grooves are encapsulated with a waterproof and breathable membrane. Through the design of the flow-turbulating device, the present invention causes the hot air to form a complex flow path within the cylindrical chamber, thereby achieving efficient circulation and uniform distribution of the hot air. Through the counter-rotating spiral arrangement of the first and second flow-turbulating blades, the hot air can fully contact the workpiece, thereby improving heat exchange efficiency, effectively reducing the occurrence of paint surface defects, and significantly improving the drying quality.

Description

Technical Field

[0001] The present application relates to the field of paint drying, and in particular to a direct-heating paint drying room. Background Art

[0002] The drying process is crucial in the paint coating process, directly impacting both paint coating quality and workpiece production efficiency. Traditional paint drying rooms suffer from numerous issues, including uneven drying, which leads to surface defects such as flow marks and bubbles; poor hot air circulation, which results in long drying times and high energy consumption; and ineffective dehumidification, which can lead to incomplete paint drying and compromise coating adhesion and durability.

[0003] While some drying booths currently use turbulence devices to improve air flow, these structures are often poorly designed, preventing them from fully utilizing the hot air and effectively removing moisture generated during the drying process. Furthermore, existing drying booths lack flexibility and stability in workpiece placement and support structures, hindering drying efficiency and quality. Therefore, it is necessary to develop a new direct-heat paint drying booth to address these issues. Summary of the Invention

[0004] The purpose of the present application is to solve the technical problems of uneven hot air distribution and poor workpiece drying uniformity in the existing drying room. Compared with the existing technology, a direct-heated paint drying room is provided, including a cylinder chamber, wherein a turbulence device is rotatably connected in the cylinder chamber, and the turbulence device includes a coaxially arranged outer straight tube and an inner conical tube, a clamping bin is provided between the outer straight tube and the inner conical tube, and the two ends of the clamping bin are respectively provided with a sealed end and an open end, the sealed end is provided on the input end side of the inner conical tube, and a turbulence blade 1 is provided at the open end, and a turbulence blade 2 is provided on the inner wall of the inner conical tube, and the spiral direction of the turbulence blade 1 and the turbulence blade 2 are arranged in opposite directions;

[0005] The inner diameter of the inner conical tube gradually decreases toward the input end, the outer straight tube has a fixed inner diameter and its inner diameter is larger than the maximum inner diameter of the inner conical tube, and the inner wall of the inner conical tube is also provided with a plurality of water guide grooves and exhaust grooves, the water guide grooves and the exhaust grooves both having the same spiral curvature as the second spoiler blade, and the exhaust grooves are encapsulated with a waterproof and breathable membrane.

[0006] Furthermore, the cylinder chamber includes a cylinder, with flanges and a closing plate fixed to both ends of the cylinder, a heating fan fixed to the closing plate, and an output end of the heating fan being arranged opposite to an input end of the inner cone tube;

[0007] A support guide groove is fixed between the flange and the closing plate. The four groups of support guide grooves are opposite to each other and symmetrically arranged up and down. A drying rack is also provided in the spoiler device. Guide rails matching the support guide grooves are fixed on the upper and lower sides of the drying rack.

[0008] Furthermore, the drying rack includes a plurality of annular upright frames that are arranged equidistantly and vertically, and a storage plate is fixed between adjacent annular upright frames, and the storage plate is provided with ventilation holes.

[0009] Furthermore, the cylindrical chamber is fixed in the drying room, which includes a drying chamber and a high-temperature chamber. The heating fan is used to transport the heat generated by the high-temperature chamber to the turbulence device; the cylindrical chamber and the drying room are also provided with an insulation layer.

[0010] Furthermore, the bottom of the cylindrical chamber is lower than the bottom of the drying room, and the support guide groove at the bottom is located on the same horizontal plane as the bottom of the drying room.

[0011] Furthermore, a dehumidification ring silo is provided at one end of the sealing end, the dehumidification ring silo is filled with a desiccant, a filter screen is provided on the outer circumference of the dehumidification ring silo, and a water collecting ring groove is provided at the end of the cylindrical chamber to cooperate with the dehumidification ring silo;

[0012] A guide diaphragm valve is provided at one end of the water guide groove close to the sealing end, and the water guide groove is connected to the dehumidification ring warehouse in one direction through the guide diaphragm valve.

[0013] Furthermore, the inner wall of the water-conducting groove is coated with a ceramic coating.

[0014] Furthermore, the motor output end of the heating fan is connected to a driving gear through a gear set, and the driving gear is fixed to the end of the spoiler.

[0015] Furthermore, a closed door is rotatably connected to the flange, a guide curved surface 1 is fixed on the inner side of the closed door, a guide curved surface 2 is provided on the inner wall of the flange, a guide plate is provided at the end of the outer straight tube, and the guide curved surface 1, the guide curved surface 2 and the guide plate are connected to form a complete guide curved surface, and the guide curved surface has a guiding curvature for driving the air inside the inner conical tube into the clamping chamber.

[0016] Furthermore, the inner wall of the cylinder is provided with two sets of symmetrically arranged bearing seats, the outer wall of the outer straight tube is fixed with a bearing ring that matches the bearing seat, and a sealed bearing is also fixed on the outer wall side of the outer straight tube close to the open end.

[0017] Compared with the existing technology, the advantages of this application are:

[0018] The present invention uses the design of a turbulent device with an outer straight tube and an inner tapered tube to form a complex flow path for the hot air in the barrel chamber, thereby achieving efficient circulation and uniform distribution of the hot air. Through the reverse spiral setting of the turbulent blade one and the turbulent blade two, the hot air can fully contact the workpiece, thereby improving the heat exchange efficiency, effectively reducing the occurrence of paint surface defects, and significantly improving the drying quality. At the same time, the efficient turbulent effect of the turbulent device makes full use of the hot air, and cooperates with the waste heat utilization of the insulation layer to reduce heat loss and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front structure of this application;

[0020] Figure 2 This is a schematic diagram of the bottom structure of this application;

[0021] Figure 3 This is a schematic diagram of the internal structure of this application;

[0022] Figure 4 This is a schematic diagram of the internal structure of the drying room proposed in this application;

[0023] Figure 5 This is a schematic structural diagram of the drying rack proposed in this application;

[0024] Figure 6 This is a front structural diagram of the cylindrical chamber and the flow-turbulating device proposed in this application;

[0025] Figure 7 This is a schematic side view of the structure of the cylindrical chamber and the flow-turbulating device proposed in this application;

[0026] Figure 8 This is a schematic diagram of the explosion structure of the cylinder proposed in this application;

[0027] Figure 9 Schematic diagram of the structure of the spoiler device proposed in this application;

[0028] Figure 10 Schematic diagram of the cross-sectional structure of the spoiler device proposed in this application;

[0029] Figure 11 for Figure 10 A schematic diagram of the enlarged structure of the middle part A;

[0030] Figure 12 This is a schematic diagram of the transverse cross-sectional structure of the present application;

[0031] Figure 13 This is a schematic diagram of the longitudinal cross-sectional structure of the present application;

[0032] Figure 14 for Figure 13A schematic diagram of the enlarged structure of the middle part B;

[0033] Figure 15 for Figure 13 Schematic diagram of the enlarged structure of the middle C part;

[0034] Figure 16 This is a schematic diagram of the structure of the closed door proposed in this application;

[0035] Figure 17 This is a schematic diagram of the internal air flow of the spoiler device proposed in this application.

[0036] Description of the numbers in the figure:

[0037] 1. Drying room; 11. Drying chamber; 12. High temperature room; 13. Insulation layer;

[0038] 2. Cylinder chamber; 21. Cylinder body; 211. Bearing seat; 212. Water collecting ring groove; 22. Closing door; 221. Diversion curved surface 1; 23. Flange; 231. Diversion curved surface 2; 24. Support guide groove; 25. Closing plate;

[0039] 3. Drying rack; 31. Ring stand; 32. Storage board; 321. Ventilation hole; 33. Guide rail;

[0040] 4. Flow-turbulating device; 401. Open end; 402. Sealed end; 403. Clamping chamber; 41. External straight pipe; 411. Bearing ring; 412. Guide plate; 42. Internal tapered pipe; 421. Water guide groove; 4211. Guide diaphragm valve; 422. Exhaust groove; 4221. Waterproof and breathable membrane; 43. Flow-turbulating blade 1; 44. Flow-turbulating blade 2; 45. Dehumidification ring chamber; 451. Filter screen; 46. Drive gear; 47. Sealed bearing;

[0041] 5. Heating fan;

[0042] 6. Desiccant. DETAILED DESCRIPTION

[0043] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of this application.

[0044] Example:

[0045] The present invention provides a direct heating paint drying room, please refer to Figure 1 - Figure 17It mainly includes a drying room 1 and a cylindrical chamber 2 arranged in the drying room 1. The drying room 1 includes a drying chamber 11 and a high-temperature chamber 12. The high-temperature chamber 12 uses a burner or an electric heater as a heat source. Taking the burner as an example, fuel such as natural gas, diesel, etc. burns in the combustion chamber and transfers heat to the heat dissipation device. The heat exchange generates high-temperature air. The high-temperature air directly transfers heat to the air in the cylindrical chamber 2 through the cooperation of the heating fan 5 and the pipeline, so that the air temperature rises rapidly.

[0046] Please refer to the Figure 12 An insulation layer 13 is provided between the cylinder chamber 2 and the drying room 1, which can effectively reduce heat loss and improve energy utilization efficiency. The insulation layer 13 adopts high-performance thermal insulation materials, such as rock wool, polyurethane foam, etc., which have low thermal conductivity and can keep the temperature in the drying room 1 stable during the drying process.

[0047] See also Figure 6 - Figure 8 The cylindrical chamber 2 includes a cylindrical body 21, with flanges 23 and closing plates 25 fixed at both ends respectively. A heating fan 5 is fixed on the closing plate 25. The output end of the heating fan 5 is arranged opposite to the input end of the inner cone tube 42, and is used to transport the heat generated by the high-temperature chamber 12 to the inner cone tube 42. The heating fan 5 can ensure that the hot air enters the cylindrical chamber 2 quickly and evenly.

[0048] A support guide groove 24 is fixed between the flange 23 and the closing plate 25. The four groups of support guide grooves 24 are opposite to each other and symmetrically arranged up and down to provide support and guidance for the drying rack 3; the support guide grooves 24 are made of high-strength metal material and the surface is smoothed, which can reduce the friction between the guide rail 33 and the support guide groove 24, facilitate the sliding of the drying rack 3, and improve the convenience of loading and unloading.

[0049] See also Figure 6 - Figure 11 A flow-turbulating device 4 is rotatably connected in the cylindrical chamber 2. The flow-turbulating device 4 includes a coaxially arranged outer straight tube 41 and an inner conical tube 42. A clamping chamber 403 is provided between the outer straight tube 41 and the inner conical tube 42. The two ends of the clamping chamber 403 are respectively provided with a sealed end 402 and an open end 401. The sealed end 402 is provided on the input end side of the inner conical tube 42. A flow-turbulating blade 1 43 is provided at the open end 401. The inner wall of the inner conical tube 42 is provided with a flow-turbulating blade 2 44.

[0050] Please refer to the Figure 10 - Figure 11The inner diameter of the inner conical tube 42 gradually decreases toward the input end, and the outer straight tube 41 has a fixed inner diameter and its inner diameter is larger than the maximum inner diameter of the inner conical tube 42; the inner wall of the inner conical tube 42 is also provided with a plurality of water guide grooves 421 and exhaust grooves 422, and the water guide grooves 421 and the exhaust grooves 422 both have the same spiral curvature as the spoiler blade 2 44, and the exhaust grooves 422 are encapsulated with a waterproof and breathable membrane 4221; the waterproof and breathable membrane 4221 has good waterproof and breathable properties, can allow water vapor to pass through, and at the same time prevent liquid water from entering the exhaust grooves 422, thereby effectively realizing the discharge of water vapor and the separation of liquid water.

[0051] Please refer to the Figure 17 The spiral directions of the spoiler blades 1 43 and 2 44 are opposite to each other. This design makes the hot air form opposite air flow paths in the inner conical tube 42 and the clamping chamber 403. Specifically, the spoiler blade 2 44 pushes the hot air delivered by the heating fan 5 in a spiral shape in the inner conical tube 42. Compared with the traditional direct current hot air pushing method, it avoids the stratification of the upper and lower layers of air due to the temperature difference, and at the same time enables the hot air to radiate heat to the surface of the workpiece to be dried more evenly. At the same time, the rotation of the spoiler blade 1 43 pushes the inner conical tube 4 2, the air that has completed heat exchange in the clamping chamber 403 is sucked into the clamping chamber 403. On the one hand, it provides a secondary thermal insulation layer for the inner conical tube 42. On the other hand, due to the structure of the inner conical tube 42, the cross-sectional volume of the clamping chamber 403 gradually decreases along the direction of the air inside it, so that the hot air entering the clamping chamber 403 is gradually pressurized and passes through the waterproof and breathable membrane 4221 of the exhaust groove 422 and enters the inner conical tube 42 again, generating a circumferential radial hot air flow. Combined with the spiral hot air flow in the inner conical tube 42, the turbulence effect is enhanced, the heat exchange efficiency is improved, and the drying is more uniform.

[0052] A drying rack 3 is also provided in the spoiler device 4. Guide rails 33 matching the support guide grooves 24 are fixed on the upper and lower sides of the drying rack 3, which facilitates the installation and disassembly of the drying rack 3 and the placement and removal of workpieces. The guide rails 33 and the support guide grooves 24 adopt a high-precision matching method to ensure that the drying rack 3 is stable and smooth during the sliding process. Furthermore, the bottom of the cylinder chamber 2 is lower than the bottom of the drying room 1, and the support guide grooves 24 at the bottom are on the same horizontal plane as the bottom of the drying room 1. Therefore, when the drying rack 3 is pushed out of the cylinder chamber 2, the bottom of the drying rack 3 is flush with the bottom surface, without any height difference, which further improves the convenience of loading and unloading.

[0053] Please refer to the Figure 5The drying rack 3 includes several annular uprights 31 arranged equidistantly and vertically. A storage plate 32 is fixed between adjacent annular uprights 31. The storage plate 32 is provided with air holes 321, which are conducive to the circulation of hot air in the drying rack 3, providing a circulation path for the circumferential radial hot air flow, and improving the drying effect. The size and distribution of the air holes 321 have been optimized to ensure that the hot air passes through the storage plate 32 evenly and fully contacts the workpiece.

[0054] Please refer to the Figure 14 A dehumidification ring silo 45 is also provided at one end of the sealed end 402, and the dehumidification ring silo 45 is filled with a desiccant 6. A filter screen 451 is provided on the outer circumference of the dehumidification ring silo 45 to prevent impurities from entering the dehumidification ring silo 45 and affecting the moisture absorption effect; the end of the cylindrical chamber 2 is provided with a water collecting ring groove 212 which cooperates with the dehumidification ring silo 45 and is used to collect moisture discharged from the dehumidification ring silo 45. The desiccant 6 adopts a high-efficiency hygroscopic material, which can quickly absorb moisture and maintain a dry environment in the drying room.

[0055] The inner wall of the water guide groove 421 is coated with a ceramic coating. At the same time, a guide diaphragm valve 4211 is provided at one end of the water guide groove 421 near the sealing end 402. When the hot air from the inner cone tube 42 contacts the paint on the surface of the workpiece to generate hot air with high humidity, due to the low heating rate of the ceramic coating, condensed water will be generated after the hot air contacts the ceramic coating with low temperature. The taper guide of the inner cone tube 42 and the guide of the water guide groove 421, combined with the centrifugal force generated by the rotation of the inner cone tube 42, jointly make the cold air collected in the water guide groove 421 The condensed water flows along one end close to the guide diaphragm valve 4211. The water guide groove 421 is connected to the dehumidification ring chamber 45 in one direction through the guide diaphragm valve 4211. When the water in the water guide groove 421 accumulates to a certain level, the guide diaphragm valve 4211 is pressurized to open, and the water flows into the dehumidification ring chamber 45 and is absorbed by the desiccant 6. At the same time, since the dehumidification ring chamber 45 rotates synchronously with the flow disturbance device 4, the water entering the desiccant 6 will enter the water collecting ring groove 212 by centrifugal force and be discharged by the water pump, thereby realizing the automatic dehumidification function.

[0056] At the same time, the water collecting ring groove 212 is provided with a heat conducting structure, such as a heat conducting fin, so that the hot air overflowing from the desiccant 6 performs heat exchange for the heat conducting structure of the water collecting ring groove 212, and then transfers the temperature to the insulation layer 13, thereby achieving the purpose of waste heat recovery and utilization.

[0057] Please refer to the Figure 14 The motor output end of the heating fan 5 is connected to the driving gear 46 through a gear set. The driving gear 46 is fixed to the end of the spoiler 4. When the heating fan 5 is working, the driving gear 46 is driven to rotate through the gear set, thereby driving the spoiler 4 to rotate in the cylindrical chamber 2, further enhancing the spoiler effect of the hot air.

[0058] Please refer to the Figure 15 The flange 23 is rotatably connected to the closed door 22, and a guide curved surface 1 221 is fixed to the inner side of the closed door 22. The inner wall of the flange 23 is provided with a guide curved surface 231, and the end of the outer straight tube 41 is provided with a guide plate 412. The guide curved surface 1 221, the guide curved surface 231 and the guide plate 412 are connected to form a complete guide curved surface. The guide curved surface has a guiding curvature that drives the air inside the inner conical tube 42 into the clamping chamber 403, so that the hot air can circulate smoothly in the spoiler 4. The surfaces of the guide curved surface 1 221, the guide curved surface 231 and the guide plate 412 are smoothed, which can reduce the resistance during the flow of hot air.

[0059] Two sets of symmetrically arranged bearing seats 211 are provided on the inner wall of the cylinder 21. A bearing ring 411, which mates with the bearing seats 211, is fixed to the outer wall of the outer straight tube 41, ensuring stable rotation of the flow-turbulating device 4 within the cylinder chamber 2. The bearing seats 211 and the bearing ring 411 utilize high-precision bearings that can withstand large radial and axial loads, reducing friction and wear during rotation.

[0060] Please refer to the Figure 15 A sealing bearing 47 is also fixed to the outer wall of the outer straight tube 41 near the open end 401 to prevent hot air from leaking from the gap between the outer straight tube 41 and the cylinder 21, thereby improving the sealing and thermal efficiency of the drying room. The sealing bearing 47 has good sealing performance and can effectively prevent the leakage of hot air.

[0061] The specific drying process of this application:

[0062] 1. Installation process:

[0063] 1. Install the drying room 1 in a suitable location to ensure its stability and good ventilation conditions. The installation site should be flat and solid and able to bear the weight of the drying room 1. At the same time, ensure good ventilation to facilitate the discharge of waste gas and water vapor generated during the drying process.

[0064] 2. Install the cylindrical chamber 2 in the drying room 1, ensuring that an arc-shaped embedded groove is reserved at the bottom of the cylindrical chamber 2 on the installation bottom surface, and fill the insulation layer 13 between the cylindrical chamber 2 and the drying room 1; when filling the insulation layer 13, ensure that it is filled evenly and densely to avoid gaps and voids to ensure the insulation effect.

[0065] 3. Fix the heating fan 5 on the closing plate 25 and connect the pipe to the high temperature chamber 12 to ensure that the heating fan 5 can normally transfer the heat generated by the high temperature chamber 12 to the cylinder chamber 2. The pipe connection should be firm and sealed to prevent heat leakage.

[0066] 4. Install the flow-turbulating device 4 in the cylindrical chamber 2, so that the bearing ring 411 of the outer straight tube 41 cooperates with the bearing seat 211 on the inner wall of the cylindrical body 21, and install a sealed bearing 47 on the outer wall side of the outer straight tube 41 close to the open end 401; during the installation process, pay attention to the lubrication and sealing of the bearing to ensure that the flow-turbulating device 4 can rotate flexibly.

[0067] 5. Install the drying rack 3 on the support guide groove 24 through the guide rail 33, and place the workpieces to be dried on the storage plate 32; when placing the workpieces, pay attention to even distribution to avoid partial overweight or overcrowding, which affects the drying effect.

[0068] 6. Fill the dehumidification ring silo 45 with desiccant 6 and install it at one end of the sealed end 402 so that the water collecting groove 212 at the end of the cylindrical chamber 2 cooperates with the dehumidification ring silo 45; when filling the desiccant 6, pay attention to the filling amount to ensure that it can fully exert its moisture absorption effect.

[0069] 2. Drying process:

[0070] 1. Start the high temperature chamber 12 and the heating fan 5. The hot air generated by the high temperature chamber 12 is transported to the cylinder chamber 2 through the heating fan 5. The air volume and air pressure of the heating fan 5 can be adjusted according to the number and size of the drying workpieces to ensure that the hot air can meet the drying requirements.

[0071] 2. The hot air enters the inner conical tube 42 and forms a spiral flow under the action of the turbulent blades 44 on the inner wall of the inner conical tube 42. At the same time, the motor of the heating fan 5 drives the drive gear 46 to rotate through the gear set, driving the turbulent device 4 to rotate in the cylindrical chamber 2, further enhancing the turbulent effect of the hot air; during the spiral flow process, the hot air fully contacts the workpiece on the storage plate 32, performs heat exchange, and dries the paint on the surface of the workpiece.

[0072] 3. Part of the hot air enters the clamping chamber 403 through the guide surface composed of the guide surface 1 221, the guide surface 231 and the guide plate 412. Under the action of the turbulent blade 1 43 in the clamping chamber 403, a spiral flow is formed in the opposite direction to that in the inner conical tube 42, and a circumferential radial hot air flow is generated, so that the hot air is fully recycled and the drying uniformity is improved.

[0073] 4. During the drying process, water vapor on the surface of the workpiece evaporates to form water vapor, which is discharged through the waterproof and breathable membrane 4221 on the exhaust groove 422, and some condensed water droplets flow into the water guide groove 421; when the moisture in the water guide groove 421 accumulates to a certain level, the guide diaphragm valve 4211 opens, and the moisture flows into the dehumidification ring bin 45 and is absorbed by the desiccant 6; by real-time monitoring of the humidity in the drying room, the operating parameters of the heating fan 5 and the working status of the dehumidification system can be adjusted according to the humidity changes to ensure the stability and efficiency of the drying process.

[0074] 5. After drying is completed, close the high-temperature chamber 12 and the heating fan 5, open the closed door 22, remove the drying rack 3 from the cylindrical chamber 2 through the guide rail 33, and take out the dried workpiece; when taking out the workpiece, be careful to avoid collision and scratches to ensure the quality of the workpiece.

[0075] The present invention adopts the design of the turbulence device 4 with an outer straight tube 41 and an inner tapered tube 42, so that the hot air forms a complex flow path in the cylindrical chamber 2, thereby realizing efficient circulation and uniform distribution of the hot air. Through the reverse spiral setting of the turbulence blade 1 43 and the turbulence blade 2 44, the hot air can fully contact the workpiece, thereby improving the heat exchange efficiency, effectively reducing the occurrence of paint surface defects, and significantly improving the drying quality. At the same time, the efficient turbulence effect of the turbulence device 4 makes full use of the hot air, and cooperates with the waste heat utilization of the thermal insulation layer 13 to reduce heat loss and reduce energy consumption.

[0076] The dehumidification system composed of the water guide groove 421, the exhaust groove 422, the waterproof and breathable membrane 4221, the dehumidification ring chamber 45 and the desiccant 6 can effectively and timely remove the water vapor generated during the drying process.

[0077] The drying rack 3, via guide rails 33, mates with the support guide slots 24, facilitating installation and removal, and facilitating the placement and removal of workpieces. Operators can easily pull the drying rack 3 out of or push it into the drum chamber 2, significantly enhancing operational convenience and flexibility. Furthermore, the drying rack 3's ring-shaped stand 31 and storage plate 32 effectively utilize space and increase workpiece loading capacity.

[0078] The above is only the best implementation method adopted by this application in combination with current actual needs, but the scope of protection of this application is not limited to this.

Claims

1. A direct heating paint drying room, characterized by: The invention comprises a cylindrical chamber (2), wherein a flow-disturbing device (4) is rotatably connected in the cylindrical chamber (2), wherein the flow-disturbing device (4) comprises an outer straight tube (41) and an inner conical tube (42) arranged coaxially, wherein a clamping chamber (403) is provided between the outer straight tube (41) and the inner conical tube (42), wherein two ends of the clamping chamber (403) are respectively provided with a sealed end (402) and an open end (401), wherein the sealed end (402) is provided on the input end side of the inner conical tube (42), wherein a flow-disturbing blade 1 (43) is provided at the open end (401), and a flow-disturbing blade 2 (44) is provided on the inner wall of the inner conical tube (42), wherein the spiral directions of the flow-disturbing blade 1 (43) and the flow-disturbing blade 2 (44) are arranged in opposite directions; The inner diameter of the inner conical tube (42) gradually decreases in the direction of the input end, the outer straight tube (41) has a fixed inner diameter and its inner diameter is larger than the maximum inner diameter of the inner conical tube (42), and the inner wall of the inner conical tube (42) is further provided with a plurality of water guide grooves (421) and exhaust grooves (422), the water guide grooves (421) and the exhaust grooves (422) both having the same spiral curvature as the second spoiler blade (44), and the exhaust grooves (422) are encapsulated with a waterproof and breathable membrane (4221); A dehumidification ring bin (45) is further provided at one end of the sealing end (402), wherein the dehumidification ring bin (45) is filled with a moisture absorbent (6), a filter screen (451) is provided on the outer circumference of the dehumidification ring bin (45), and a water collecting ring groove (212) is provided at the end of the cylindrical chamber (2) to cooperate with the dehumidification ring bin (45); A guide diaphragm valve (4211) is provided at one end of the water guide groove (421) close to the sealing end (402), and the water guide groove (421) is connected to the dehumidification ring chamber (45) in one direction via the guide diaphragm valve (4211).

2. A direct heating paint drying room according to claim 1, characterized in that: The cylinder chamber (2) includes a cylinder (21), and flanges (23) and a closing plate (25) are fixed to both ends of the cylinder (21), a heating fan (5) is fixed to the closing plate (25), and the output end of the heating fan (5) is arranged opposite to the input end of the inner cone tube (42); A support guide groove (24) is fixed between the flange (23) and the closing plate (25), and four groups of the support guide grooves (24) are arranged opposite to each other and symmetrically up and down. A drying rack (3) is also provided in the spoiler device (4), and guide rails (33) matching the support guide grooves (24) are fixed on both the upper and lower sides of the drying rack (3).

3. A direct heating paint drying room according to claim 2, characterized in that: The drying rack (3) comprises a plurality of annular upright frames (31) arranged equidistantly and vertically, and a storage plate (32) is fixed between adjacent annular upright frames (31), and the storage plate (32) is provided with a ventilation hole (321).

4. A direct heating paint drying room according to claim 2, characterized in that: The cylindrical chamber (2) is fixed in the drying room (1), and the drying room (1) includes a drying room (11) and a high-temperature chamber (12). The heating fan (5) is used to transport the heat generated by the high-temperature chamber (12) to the turbulence device (4); and an insulation layer (13) is also provided between the cylindrical chamber (2) and the drying room (1).

5. A direct heating paint drying room according to claim 4, characterized in that: The bottom of the cylindrical chamber (2) is lower than the bottom of the drying room (1), and the support guide groove (24) at the bottom is located on the same horizontal plane as the bottom of the drying room (1).

6. A direct heating paint drying room according to claim 1, characterized in that: The inner wall of the water guide groove (421) is coated with a ceramic coating.

7. A direct heating paint drying room according to claim 2, characterized in that: The motor output end of the heating fan (5) is connected to a driving gear (46) via a gear set, and the driving gear (46) is fixed to the end of the spoiler (4).

8. The direct heating paint drying room according to claim 2, characterized in that: The flange (23) is rotatably connected to a closed door (22), a guide curved surface 1 (221) is fixed on the inner side of the closed door (22), a guide curved surface 2 (231) is provided on the inner wall of the flange (23), and a guide plate (412) is provided at the end of the outer straight tube (41). The guide curved surface 1 (221), the guide curved surface 2 (231) and the guide plate (412) are connected to form a complete guide curved surface, and the guide curved surface has a guide curvature for driving the air inside the inner conical tube (42) into the clamping chamber (403).

9. The direct heating paint drying room according to claim 2, characterized in that: The inner wall of the cylinder (21) is provided with two sets of symmetrically arranged bearing seats (211), the outer wall of the outer straight tube (41) is fixed with a bearing ring (411) that matches the bearing seat (211), and a sealing bearing (47) is also fixed on the outer wall side of the outer straight tube (41) close to the open end (401).

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