Directly-heated paint drying room

Abstract

The invention provides a directly-heated paint drying room which is applied to the field of paint drying and comprises a barrel chamber, a turbulent flow device is arranged in the barrel chamber and comprises an outer straight pipe and an inner taper pipe, a first turbulent flow blade and a second turbulent flow blade are arranged on the outer straight pipe and the inner taper pipe respectively, and the blade spiral directions of the first turbulent flow blade and the second turbulent flow blade are opposite. The inner wall of the inner taper pipe is further provided with a plurality of water guide grooves and exhaust grooves, and waterproof breathable films are packaged on the exhaust grooves. Through the design of the turbulent flow device, hot air forms a complex flowing path in the barrel chamber, efficient circulation and uniform distribution of the hot air are achieved, through reverse spiral arrangement of the first turbulent flow blade and the second turbulent flow blade, the hot air can make full contact with a workpiece, the heat exchange efficiency is improved, paint surface defects are effectively reduced, and the service life of the workpiece is prolonged. And the drying quality is obviously improved.

Description

Technical Field

[0001] This application relates to the field of paint drying, and particularly to a direct-heat paint drying room. Background Art

[0002] In the paint coating process, the drying link is crucial, which directly affects the quality of the paint coating and the production efficiency of workpieces. There are many problems with traditional paint drying rooms. For example, the drying is uneven, resulting in defects such as flow marks and bubbles on the paint surface; the hot air circulation is not smooth, making the drying time long and the energy consumption large; the dehumidification effect is not good, easily causing incomplete drying of the paint, affecting the adhesion and durability of the coating.

[0003] At present, although some drying rooms on the market adopt some flow disturbance devices to improve air flow, the flow disturbance structure design is not reasonable enough, unable to make full use of hot air and difficult to effectively remove the water vapor generated during the drying process. Moreover, the existing drying rooms lack flexibility and stability in the workpiece placement and support structure, which is not conducive to improving the drying efficiency and quality. Therefore, it is necessary to develop a new type of direct-heat paint drying room to solve the above problems. Summary of the Invention

[0004] The purpose of this application is to solve the technical problems of uneven distribution of hot air inside the existing drying room and poor drying uniformity of workpieces. Compared with the prior art, a direct-heat paint drying room is provided, including a cylindrical chamber. A flow disturbance device is rotatably connected inside the cylindrical chamber. The flow disturbance device includes an outer straight pipe and an inner conical pipe arranged coaxially. There is a clamping chamber between the outer straight pipe and the inner conical pipe. The two ends of the clamping chamber are respectively provided with a sealing end and an open end. The sealing end is arranged on one side of the input end of the inner conical pipe. A flow disturbance vane one is provided at the open end. Flow disturbance vanes two are provided on the inner wall of the inner conical pipe. The spiral directions of the vanes of the flow disturbance vane one and the flow disturbance vanes two are set in opposite directions; The inner diameter of the inner conical pipe gradually decreases along the direction of the input end. The outer straight pipe has a fixed inner diameter and its inner diameter is larger than the maximum inner diameter of the inner conical pipe. A number of water guiding grooves and exhaust grooves are also provided on the inner wall of the inner conical pipe. The water guiding grooves and the exhaust grooves both have the same spiral curvature as the flow disturbance vanes two. A waterproof and breathable membrane is encapsulated on the exhaust groove.

[0005] Further, the cylindrical chamber includes a cylindrical body. A flange and a closing plate are respectively fixed at both ends of the cylindrical body. A heating blower is fixed on the closing plate. The output end of the heating blower is arranged opposite to the input end of the inner conical pipe; Support guide grooves are fixed between the flange and the closing plate. Four groups of the support guide grooves are arranged in pairs and symmetrically up and down. A drying rack is also arranged inside the flow disturbance device. Guide rails matching the support guide grooves are fixed on both the upper and lower sides of the drying rack.

[0006] Furthermore, the drying rack includes a plurality of annular frames which are arranged equidistantly and vertically, and a storage plate is fixed between adjacent annular frames, and the storage plate is provided with ventilation holes. Furthermore, the barrel chamber is fixed in a drying room, which includes a drying room and a high-temperature room. The heating fan is used to transport the heat generated by the high-temperature room to the turbulence device; the barrel chamber and the drying room are also provided with an insulation layer.

[0007] Furthermore, the bottom of the cylinder chamber is lower than the bottom of the drying room, and the support guide groove located at the bottom is located on the same horizontal plane as the bottom of the drying room.

[0008] Furthermore, a dehumidification ring bin is provided at one end of the sealing end, the dehumidification ring bin is filled with a desiccant, a filter screen is provided on the outer circumference of the dehumidification ring bin, and a water collecting ring groove matching the dehumidification ring bin is provided at the end of the cylinder chamber; 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 unidirectionally connected with the dehumidification ring warehouse through the guide diaphragm valve.

[0009] Furthermore, the inner wall of the water guiding groove is coated with a ceramic coating.

[0010] 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.

[0011] 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 curve has a guiding curvature for driving the air inside the inner conical tube into the clamping chamber.

[0012] Furthermore, the inner wall of the cylinder is provided with two groups of symmetrically arranged bearing seats, the outer wall of the outer straight tube is fixed with a bearing ring matching the bearing seats, and a sealed bearing is also fixed on one side of the outer wall of the outer straight tube close to the opening end.

[0013] Compared with the prior art, the advantages of this application are: The present invention uses the design of a spoiler 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 spoiler blades one and 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 spoiler effect of the spoiler 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

[0014] Figure 1 is a front structure schematic diagram of the present application; Figure 2 is a bottom structure schematic diagram of the present application; Figure 3 is an internal structure schematic diagram of the present application; Figure 4 is an internal structure schematic diagram of the drying room proposed in the present application; Figure 5 is a structure schematic diagram of the drying rack proposed in the present application; Figure 6 is a front structure schematic diagram of the cylinder chamber and the flow disturbing device proposed in the present application; Figure 7 is a side structure schematic diagram of the cylinder chamber and the flow disturbing device proposed in the present application; Figure 8 is an explosion structure schematic diagram of the cylinder chamber proposed in the present application; Figure 9 is a structure schematic diagram of the flow disturbing device proposed in the present application; Figure 10 is a sectional structure schematic diagram of the flow disturbing device proposed in the present application; Figure 11 is Figure 10 an enlarged structure schematic diagram of part A in Figure 12 is a transverse sectional structure schematic diagram of the present application; Figure 13 is a longitudinal sectional structure schematic diagram of the present application; Figure 14 is Figure 13 an enlarged structure schematic diagram of part B in Figure 15 is Figure 13 an enlarged structure schematic diagram of part C in Figure 16 is a structure schematic diagram of the closing door proposed in the present application; Figure 17 is a schematic diagram of the internal air flow direction of the flow disturbing device proposed in the present application.

[0015] Description of reference numerals in the figure: 1. Drying room; 11. Drying chamber; 12. High-temperature chamber; 13. Heat-insulating layer; 2. Cylinder chamber; 21. Cylinder body; 211. Bearing seat; 212. Water-collecting ring groove; 22. Closing door; 221. First guiding curved surface; 23. Flange; 231. Second guiding curved surface; 24. Support guiding groove; 25. Closing plate; 3. Drying rack; 31. Ring-shaped vertical rack; 32. Placing board; 321. Ventilation holes; 33. Guide rail; 4. Turbulence device; 401. Open end; 402. Sealed end; 403. Clamping bin; 41. Outer straight pipe; 411. Bearing ring; 412. Flow guide plate; 42. Inner conical pipe; 421. Water guide groove; 4211. Guide diaphragm valve; 422. Exhaust groove; 4221. Waterproof and breathable film; 43. First turbulence blade; 44. Second turbulence blade; 45. Dehumidification ring bin; 451. Filter screen plate; 46. Driving gear; 47. Sealed bearing 5. Heating fan 6. Desiccant Specific implementation mode

[0016] In the embodiments, the technical solutions of the present application will be clearly and completely described in conjunction with the accompanying drawings of the specification. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present application.

[0017] Embodiment: The present invention provides a direct heating paint drying room. Please refer to Figure 1 - Figure 17 , which 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, fuels such as natural gas and diesel are burned in the combustion chamber, and the heat is transferred to the heat dissipation device to generate high-temperature air through heat exchange. These high-temperature air directly transfers the 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.

[0018] Please refer to Figure 12 preferably, a heat insulation layer 13 is provided between the cylindrical chamber 2 and the drying room 1, which can effectively reduce heat dissipation and improve energy utilization efficiency. The heat insulation layer 13 uses high-performance heat insulation materials such as rock wool and polyurethane foam, and its thermal conductivity is low, which can keep the temperature in the drying room 1 stable during the drying process.

[0019] Please refer to Figure 6 - Figure 8 , the cylindrical chamber 2 includes a cylindrical body 21. Flanges 23 and closing plates 25 are respectively fixed at both ends of the cylindrical body 21. 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 conical pipe 42, and is used to transport the heat generated by the high-temperature chamber 12 into the inner conical pipe 42. The heating fan 5 can ensure that the hot air enters the cylindrical chamber 2 quickly and evenly.

[0020] A support guide groove 24 is fixed between the flange 23 and the closing plate 25. Four groups of support guide grooves 24 are arranged in pairs opposite to each other and symmetrically up and down, providing support and guidance for the drying rack 3. The support guide groove 24 is made of a high-strength metal material and its surface is smooth-treated, which can reduce the friction between the guide rail 33 and the support guide groove 24, facilitating the sliding of the drying rack 3 and improving the convenience of loading and unloading.

[0021] Please refer to Figure 6 - Figure 11 , a flow disturbing device 4 is rotatably connected in the cylinder chamber 2. The flow disturbing device 4 includes an outer straight pipe 41 and an inner conical pipe 42 arranged coaxially. A clamping bin 403 is provided between the outer straight pipe 41 and the inner conical pipe 42. Sealing ends 402 and open ends 401 are respectively provided at both ends of the clamping bin 403. The sealing end 402 is arranged on one side of the input end of the inner conical pipe 42. Flow disturbing vanes one 43 are provided at the open end 401. Flow disturbing vanes two 44 are provided on the inner wall of the inner conical pipe 42. Please refer to preferably Figure 10 - Figure 11 , the inner diameter of the inner conical pipe 42 gradually decreases along the direction of the input end. The outer straight pipe 41 has a fixed inner diameter and its inner diameter is larger than the maximum inner diameter of the inner conical pipe 42. A plurality of water guiding grooves 421 and exhaust grooves 422 are also provided on the inner wall of the inner conical pipe 42. Both the water guiding grooves 421 and the exhaust grooves 422 have the same spiral curvature as the flow disturbing vanes two 44. A waterproof breathable membrane 4221 is encapsulated on the exhaust groove 422. The waterproof breathable membrane 4221 has good waterproof performance and breathable performance, which can allow water vapor to pass through while preventing liquid water from entering the exhaust groove 422, effectively realizing the discharge of water vapor and the separation of liquid water.

[0022] Please refer to preferably Figure 17 , the spiral directions of the vanes of the flow disturbing vanes one 43 and the flow disturbing vanes two 44 are set in opposite directions. This design makes the hot air form opposite air flow paths in the inner conical pipe 42 and the clamping bin 403. Specifically, the flow disturbing vanes two 44 push the hot air conveyed by the heating blower 5 in a spiral shape forward in the inner conical pipe 42. Compared with the traditional direct-flow hot air pushing method, it avoids the stratification phenomenon caused by the temperature difference between the upper and lower layers of air, and at the same time enables the hot air to more evenly radiate heat to the surface of the workpiece to be dried. At the same time, the rotation of the flow disturbing vanes one 43 sucks the air that has completed heat exchange in the inner conical pipe 42 into the clamping bin 403. On the one hand, it provides a secondary heat preservation layer for the inner conical pipe 42. On the other hand, due to the structure of the inner conical pipe 42, the cross-sectional volume of the clamping bin 403 gradually decreases along the direction of the air advancing inside it, causing the hot air entering the clamping bin 403 to be gradually pressurized and re-enter the inner conical pipe 42 through the waterproof breathable membrane 4221 of the exhaust groove 422, generating a circumferential radial hot air flow, cooperating with the spiral hot air flow in the inner conical pipe 42, enhancing the flow disturbing effect, improving the heat exchange efficiency, and making the drying more uniform.

[0023] A drying rack 3 is also provided inside the spoiler device 4. Guide rails 33 that match the support guide grooves 24 are fixed on both the upper and lower sides of the drying rack 3, which facilitates the installation and disassembly of the drying rack 3, and is convenient for placing and taking out workpieces. A high-precision fitting method is adopted between the guide rails 33 and the support guide grooves 24 to ensure that the drying rack 3 slides smoothly and steadily. Further, the bottom of the barrel chamber 2 is lower than the bottom of the drying room 1, and the lowermost support guide groove 24 is on the same horizontal plane as the bottom of the drying room 1. Therefore, when the drying rack 3 is pushed out of the barrel chamber 2, the bottom of the drying rack 3 is flush with the bottom surface, without a height difference, further improving the convenience of loading and unloading.

[0024] Please refer to Figure 5 , the drying rack 3 includes a number of annular vertical frames 31 arranged at equal intervals and vertically. A placement plate 32 is fixed between adjacent annular vertical frames 31. Vent holes 321 are provided on the placement plate 32, which is beneficial to the circulation of hot air inside the drying rack 3, provides a circulation path for the hot air flow in the circumferential radial direction, and improves the drying effect. The size and distribution of the vent holes 321 are optimized to ensure that the hot air can evenly pass through the placement plate 32 and fully contact the workpieces.

[0025] Please refer to Figure 14 , one end of the sealing end 402 is also provided with a dehumidifying ring bin 45. A moisture absorbent 6 is filled in the dehumidifying ring bin 45. A filter mesh plate 451 is provided on the circumferential outer side of the dehumidifying ring bin 45 to prevent impurities from entering the dehumidifying ring bin 45 and affecting the moisture absorption effect; a water collecting ring groove 212 that cooperates with the dehumidifying ring bin 45 is provided at the end of the barrel chamber 2 for collecting the moisture discharged from the dehumidifying ring bin 45. The moisture absorbent 6 uses an efficient moisture absorption material that can quickly absorb moisture and maintain a dry environment in the drying room.

[0026] The inner wall of the water guiding groove 421 is coated with a ceramic coating. At the same time, a guiding diaphragm valve 4211 is provided at one end of the water guiding groove 421 close to the sealing end 402. When the hot air in the inner conical tube 42 contacts the paint on the surface of the workpiece and generates hot air with high humidity, due to the low heating rate of the ceramic coating, the hot air will generate condensed water after contacting the low-temperature ceramic coating. Utilizing the taper guidance of the inner conical tube 42 and the guidance of the water guiding groove 421, and combined with the centrifugal force generated when the inner conical tube 42 rotates, the condensed water collected by the water guiding groove 421 is jointly made to advance along the end close to the guiding diaphragm valve 4211. The water guiding groove 421 is set to be unidirectionally communicated with the dehumidifying ring bin 45 through the guiding diaphragm valve 4211. When the moisture in the water guiding groove 421 accumulates to a certain extent, the guiding diaphragm valve 4211 is pressed open, and the moisture flows into the dehumidifying ring bin 45 and is absorbed by the moisture absorbent 6. At the same time, since the dehumidifying ring bin 45 rotates synchronously with the spoiler device 4, the moisture entering the moisture absorbent 6 will enter the water collecting ring groove 212 through the centrifugal force and be discharged through a water pump, realizing the automatic dehumidification function; Meanwhile, a heat conduction structure, such as heat conduction fins, is provided in the water collecting ring groove 212. The hot air overflowing from the desiccant 6 exchanges heat with the heat conduction structure of the water collecting ring groove 212, and then transfers the temperature into the heat preservation layer 13 to achieve the purpose of waste heat recovery and utilization.

[0027] Please refer to Figure 14 , the motor output end of the heating fan 5 is drivingly connected with a driving gear 46 through a gear set. The driving gear 46 is fixed at the end of the flow disturbing device 4. When the heating fan 5 works, the driving gear 46 is driven to rotate through the gear set, so as to drive the flow disturbing device 4 to rotate in the cylinder chamber 2, further enhancing the flow disturbing effect of the hot air.

[0028] Please refer to Figure 15 , a closing door 22 is rotatably connected to the flange 23. A first guiding curved surface 221 is fixed to the inner side of the closing door 22. A second guiding curved surface 231 is provided on the inner wall of the flange 23. A guiding plate 412 is provided at the end of the outer straight pipe 41. The first guiding curved surface 221, the second guiding curved surface 231 and the guiding plate 412 are connected into a complete guiding surface. The guiding curve has a guiding curvature for driving the air inside the inner conical pipe 42 into the clamping bin 403, so that the hot air can smoothly circulate in the flow disturbing device 4. The surfaces of the first guiding curved surface 221, the second guiding curved surface 231 and the guiding plate 412 are smooth-treated to reduce the resistance during the flow of the hot air.

[0029] Two groups of symmetrically arranged bearing seats 211 are provided on the inner wall of the cylinder body 21. A bearing ring 411 matching with the bearing seats 211 is fixed on the outer wall of the outer straight pipe 41, ensuring the stable rotation of the flow disturbing device 4 in the cylinder chamber 2. The bearing seats 211 and the bearing rings 411 adopt high-precision bearings, which can bear large radial and axial loads and reduce friction and wear during rotation.

[0030] Please refer to Figure 15 , a sealing bearing 47 is also fixed on one side of the outer wall of the outer straight pipe 41 close to the opening end 401 to prevent the hot air from leaking through the gap between the outer straight pipe 41 and the cylinder body 21, improving the sealing performance and heat efficiency of the drying room. The sealing bearing 47 has good sealing performance and can effectively prevent the leakage of the hot air.

[0031] The specific drying process of this application: I. Installation process: 1. Install the drying room 1 at a suitable position to ensure its stability and good ventilation conditions. The installation site should be flat and solid and can bear the weight of the drying room 1; meanwhile, good ventilation should be ensured to facilitate the discharge of waste gas and water vapor generated during the drying process.

[0032] 2. Install the cylindrical chamber 2 in the drying chamber 1, ensuring that an arc-shaped embedding groove is reserved at the installation bottom surface for the bottom of the cylindrical chamber 2, and fill the insulation layer 13 between the cylindrical chamber 2 and the drying chamber 1; when filling the insulation layer 13, ensure that it is filled evenly and densely to avoid gaps and voids to guarantee the insulation effect.

[0033] 3. Fix the heating fan 5 on the closing plate 25 and connect the pipeline to the high-temperature chamber 12, ensuring that the heating fan 5 can normally deliver the heat generated by the high-temperature chamber 12 into the cylindrical chamber 2. The pipeline connection should be firm and sealed to prevent heat leakage.

[0034] 4. Install the flow disturbance device 4 in the cylindrical chamber 2, making the bearing ring 411 of the outer straight pipe 41 cooperate with the bearing seat 211 on the inner wall of the cylinder body 21, and install a sealed bearing 47 on one side of the outer wall of the outer straight pipe 41 near the opening end 401; during the installation process, pay attention to the lubrication and sealing of the bearings to ensure that the flow disturbance device 4 can rotate flexibly.

[0035] 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 placement plate 32; when placing the workpieces, pay attention to evenly distributing them to avoid local overloading or overcrowding, which may affect the drying effect.

[0036] 6. Fill the moisture absorption agent 6 in the dehumidification ring bin 45 and install it at one end of the sealing end 402, making the water collection ring groove 212 at the end of the cylindrical chamber 2 cooperate with the dehumidification ring bin 45; when filling the moisture absorption agent 6, pay attention to the appropriate filling amount to ensure that it can fully play the role of moisture absorption.

[0037] II. Drying process: 1. Start the high-temperature chamber 12 and the heating fan 5, and the hot air generated by the high-temperature chamber 12 is delivered into the cylindrical chamber 2 through the heating fan 5; the air volume and air pressure of the heating fan 5 can be adjusted according to the quantity and size of the workpieces to be dried to ensure that the hot air can meet the drying requirements.

[0038] 2. The hot air enters the inner conical pipe 42 and forms a spiral flow under the action of the flow disturbance blades two 44 on the inner wall of the inner conical pipe 42. At the same time, the motor of the heating fan 5 drives the driving gear 46 to rotate through the gear set, driving the flow disturbance device 4 to rotate in the cylindrical chamber 2, further enhancing the flow disturbance effect of the hot air; during the spiral flow process of the hot air, it fully contacts the workpieces on the placement plate 32 for heat exchange to dry the paint on the surface of the workpieces.

[0039] 3. Part of the hot air enters the clamping bin 403 through the guiding curve composed of the guiding surface one 221, the guiding surface two 231 and the guiding plate 412, forms a spiral flow opposite to that in the inner conical pipe 42 under the action of the flow disturbance blades one 43 in the clamping bin 403, and generates a circumferential radial hot air flow, enabling the hot air to be fully recycled and improving the drying uniformity.

[0040] 4. During the drying process, the water vapor on the surface of the workpiece evaporates to form water vapor, which is discharged through the waterproof breathable film 4221 on the exhaust groove 422, and part of the condensed water droplets flow into the water guide groove 421. When the water in the water guide groove 421 accumulates to a certain extent, the guiding diaphragm valve 4211 opens, and the water flows into the dehumidification ring chamber 45 and is absorbed by the moisture absorbent 6. By monitoring the humidity in the drying room in real time, the operating parameters of the heating fan 5 and the working state of the dehumidification system can be adjusted according to the humidity change situation to ensure the stability and efficiency of the drying process.

[0041] 5. After drying is completed, the high-temperature chamber 12 and the heating fan 5 are turned off, the closing door 22 is opened, and the drying rack 3 is taken out of the cylinder chamber 2 through the guide rail 33, and the dried workpiece is taken out. When taking out the workpiece, attention should be paid to avoiding collision and scratching to ensure the quality of the workpiece.

[0042] Through the design of the flow disturbance device 4 with the outer straight pipe 41 and the inner conical pipe 42, the hot air forms a complex flow path in the cylinder chamber 2, realizing the efficient circulation and uniform distribution of the hot air. Through the reverse spiral arrangement of the flow disturbance blade one 43 and the flow disturbance blade two 44, the hot air can fully contact the workpiece, improving the heat exchange efficiency, effectively reducing the generation of paint surface defects, significantly improving the drying quality. At the same time, the efficient flow disturbance effect of the flow disturbance device 4 makes the hot air fully utilized, combined with the waste heat utilization of the heat preservation layer 13, reducing heat loss and lowering energy consumption.

[0043] The dehumidification system composed of the water guide groove 421, the exhaust groove 422, the waterproof breathable film 4221, the dehumidification ring chamber 45 and the moisture absorbent 6 can timely and effectively remove the water vapor generated during the drying process.

[0044] The drying rack 3 is matched with the support guide groove 24 through the guide rail 33, which is convenient for installation and disassembly, and facilitates the placement and taking out of the workpiece. The operator can easily pull out or push the drying rack 3 from the cylinder chamber 2, greatly improving the convenience and flexibility of the operation. At the same time, the design of the annular vertical frame 31 and the placement plate 32 of the drying rack 3 can reasonably utilize the space and improve the loading capacity of the workpiece.

[0045] The above is only the best implementation mode adopted by this application in combination with the current actual needs, but the protection scope of this application is not limited thereto.

Claims

1. A direct heating paint drying room, characterized by: The invention comprises a cylindrical chamber (2), wherein a flow disturbance device (4) is rotatably connected in the cylindrical chamber (2), wherein the flow disturbance device (4) comprises an outer straight tube (41) and an inner conical tube (42) which are coaxially arranged, wherein a clamping chamber (403) is arranged 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 arranged at one side of the input end of the inner conical tube (42), wherein a flow disturbance blade 1 (43) is arranged at the open end (401), and a flow disturbance blade 2 (44) is arranged on the inner wall of the inner conical tube (42), wherein the spiral directions of the flow disturbance blade 1 (43) and the flow disturbance blade 2 (44) are opposite to each other; 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 greater than the maximum inner diameter of the inner conical tube (42); 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 exhaust grooves (422) both have the same spiral curvature as the second spoiler blade (44); and a waterproof and breathable membrane (4221) is encapsulated on the exhaust groove (422).

2. A direct heating paint drying room according to claim 1, characterized in that: The cylinder chamber (2) comprises a cylinder (21), with flanges (23) and a closing plate (25) respectively fixed at both ends of the cylinder (21), a heating fan (5) being fixed on the closing plate (25), and an output end of the heating fan (5) being arranged opposite to an 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 in pairs and symmetrically in the upper and lower directions. A drying rack (3) is also arranged in the spoiler device (4), and guide rails (33) matching the support guide grooves (24) are fixed on both 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) which are 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 ventilation holes (321).

4. A direct heating paint drying room according to claim 2, characterized in that: The barrel chamber (2) is fixed in a drying room (1); the drying room (1) comprises a drying room (11) and a high-temperature room (12); the heating fan (5) is used to transport heat generated by the high-temperature room (12) to the turbulence device (4); and a heat-insulating layer (13) is also provided between the barrel 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 cylinder 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: A dehumidification ring bin (45) is further provided at one end of the sealing end (402), the dehumidification ring bin (45) being filled with a desiccant (6), a filter screen (451) being provided on the outer circumference of the dehumidification ring bin (45), and a water collecting ring groove (212) cooperating with the dehumidification ring bin (45) being provided at the end of the cylindrical chamber (2); 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 unidirectionally connected to the dehumidification ring chamber (45) via the guide diaphragm valve (4211).

7. 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.

8. 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).

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

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

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