A welding-free conductive oil heating plate and a conductive oil heating device thereof

Abstract

The application relates to a heat storage type heating device, and particularly discloses a welding-free heat conduction oil heating plate and a heat conduction oil heating device thereof, which comprises a temperature guide plate body, the temperature guide plate body is made of carbon steel, liquid outlets and liquid inlets are arranged on the two sides of the temperature guide plate body respectively, the liquid outlets and the liquid inlets are communicated through a serpentine channel, a plurality of temperature guide spiral leaves are integrally formed in the serpentine channel, when oil bodies pass through the serpentine channel, the heat exchange area with the temperature guide plate body can be increased through the temperature guide of the temperature guide spiral leaves, and the heat exchange effect can be improved through the laminar flow destruction of the temperature guide spiral leaves. In specific use, the heating plate can effectively increase the heat exchange area with oil liquid and improve the heat exchange effect, the whole is integrally formed, the structure is more stable, the heating device part of the heat conduction is always in reciprocating rotation, laminar flow can be effectively destroyed, and the uniformity of the temperature guide is promoted.

Description

Technical Field

[0001] This invention relates to the field of thermal storage heating equipment, and more particularly to a weld-free thermal oil heating plate and its thermal oil heating device. Background Technology

[0002] Thermal oil heating devices play a crucial role in numerous industrial and civilian applications, widely used in industries such as chemical, textile, and food processing to provide a stable heat source for various processes. The thermal oil heating plate and the thermal oil heating device are the core components of the entire heat transfer system.

[0003] Traditional heat transfer oil heating plates are generally welded structures with low overall strength. In addition, when exchanging heat with oil, the heat transfer efficiency is low, and laminar flow is easily formed, which cannot meet the demand for rapid heating in the production process, thus affecting the overall production efficiency.

[0004] In the furnace design of thermal oil heating devices, existing technologies mostly adopt a static furnace structure. During the oil circulation process, laminar flow is very likely to occur, resulting in low actual heat utilization rate. This leads to large temperature differences in the oil at different locations within the furnace, poor temperature uniformity, and affects heating quality, resulting in actual waste of heat energy. In addition, existing thermal oil heating devices generally have poor heat preservation. After each use, in order to prevent the layer of oil in contact with the heating surface from remaining extremely hot and exceeding the normal operating temperature due to continuous baking, it is necessary to cool it down to room temperature. This requires a cold start for the next use, consuming a lot of heat energy. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and propose a weld-free heat transfer oil heating plate and its heat transfer oil heating device. In practical use, the heating plate can effectively increase the heat exchange area with the oil and improve the heat exchange effect. In addition, the whole piece is molded, making the structure more stable. The heat transfer heating device part, whose furnace body is always in a reciprocating rotation state, can effectively break the laminar flow and promote the uniformity of temperature conduction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A weld-free heat-conducting oil heating plate includes a heat-conducting plate body made of carbon steel. An outlet and an inlet are respectively provided on both sides of the heat-conducting plate body, and the outlet and inlet are connected by a serpentine channel. Multiple heat-conducting spiral blades are integrally formed inside the serpentine channel. When the oil passes through the serpentine channel, the heat conduction through the heat-conducting spiral blades increases the heat exchange area with the heat-conducting plate body. Furthermore, the heat conduction through the heat-conducting spiral blades can disrupt laminar flow, thereby improving the heat exchange effect.

[0008] This invention also discloses a heat transfer oil heating device for a weld-free heat transfer oil heating plate, used to heat the heat transfer oil used in the aforementioned heating plate, comprising:

[0009] A support base is provided, with a control box installed on the front side of the support base. An installation frame is fixedly connected to the upper end of the support base. A rectangular box is provided inside the installation frame. Multiple mounting brackets are fixedly connected to the inner wall of the rectangular box. A support ring is installed on the multiple mounting brackets together. A heat-insulated oil storage cylinder containing oil is rotatably connected to the inner side of the support ring. The heat-insulated oil storage cylinder is made of heat-insulating material. A temperature sensor is installed inside the heat-insulated oil storage cylinder. The heat-insulated oil storage cylinder and the support ring are rotatably connected through a bearing. A cover is fixedly connected to the top of the rectangular box. The cover is rotatably sealed to the top of the heat-insulated oil storage cylinder. Multiple heating wires are fixedly connected to the lower end of the cover.

[0010] The oil injection mechanism includes a distribution hollow disk disposed inside the heat-insulated oil storage cylinder. The bottom of the distribution hollow disk has multiple distribution holes. A rotating connecting pipe is fixedly connected to the lower end of the distribution hollow disk. The rotating connecting pipe is used to inject oil through the oil injection assembly. The rotating connecting pipe communicates with the distribution hollow disk. A rotating sleeve is fixedly connected to the lower end of the heat-insulated oil storage cylinder. The lower end of the rotating connecting pipe passes through the rotating sleeve and is rotatably sealed.

[0011] The staggered rotation mechanism is used to realize the reciprocating rotation of the heat-insulating oil storage cylinder and the diversion hollow disc, thereby improving the uniformity of oil heating temperature.

[0012] Preferably, the oil injection assembly includes a circulation pump installed on one side of the support base. The oil outlet of the circulation pump extends to the inner bottom of the rectangular box. A U-shaped frame is fixedly connected to the inner bottom of the rectangular box. A rotating connecting pipe passes through the U-shaped frame and is rotatably connected to the U-shaped frame through a bearing. The lower end of the rotating connecting pipe is connected to the oil outlet of the circulation pump. A discharge pipe is provided through the upper end of the cover for discharging oil. An expansion cylinder connected to the heat-insulated oil storage cylinder is installed at the upper end of the cover.

[0013] Preferably, the misaligned rotation mechanism includes two guide rods fixedly connected between the inner walls of the left and right sides of the rectangular box. A mounting frame is provided through the two guide rods. Racks are fixedly connected to the rear side wall of the upper part and the front side wall of the lower part of the mounting frame. Gears are installed on the rotating connecting pipe and the rotating sleeve. The two gears mesh with the two racks respectively.

[0014] Preferably, a second motor is installed at the lower end of the rectangular box, the output shaft of the second motor extends into the interior of the rectangular box and is fixedly connected to a rotating disk, and a linkage rod is rotatably connected at the eccentric upper end of the rotating disk, the other end of the linkage rod is rotatably connected to the mounting frame, and when the rotating disk rotates, the mounting frame can be moved back and forth left and right by means of the linkage rod.

[0015] Preferably, it also includes an adjustable cooling mechanism, which includes temperature-conducting components symmetrically arranged on both sides of the inner wall of the insulated oil storage cylinder. Each set of temperature-conducting components consists of multiple temperature-conducting plates. Each temperature-conducting plate penetrates the inner wall of the insulated oil storage cylinder and is fixedly connected to the insulated oil storage cylinder. Each temperature-conducting plate has multiple flow guide holes in the part inside the insulated oil storage cylinder.

[0016] Both of the aforementioned temperature-conducting components are fitted with temperature-insulating covers on the outer parts of the temperature-insulating oil storage cylinder. Through the relative and opposite movements of the two temperature-insulating covers, the temperature-conducting components can achieve temperature insulation and heat dissipation.

[0017] Preferably, the rectangular box has grooves on both the front and rear inner walls. A bidirectional threaded rod is rotatably connected between the inner walls of each groove. A movable block is threaded to each of the two threaded ends of each bidirectional threaded rod. Each movable block is slidably connected to the inner wall of the corresponding groove. One side of each movable block passes through the opening of the corresponding groove and is fixedly connected to a connecting frame. An arc-shaped guide ring is fixedly connected between every two mating connecting frames. A T-shaped groove is formed in each arc-shaped guide ring. A T-shaped block is slidably connected in each T-shaped groove. Each T-shaped block is elastically connected to the inner wall of the corresponding T-shaped groove by a return spring. Each T-shaped block is fixedly connected to the corresponding heat insulation cover by a fixing rod.

[0018] Preferably, the right ends of both bidirectional threaded rods extend to the outside and are fixedly connected to synchronous pulleys. The two synchronous pulleys are connected by a synchronous belt drive. A first motor is installed on the right side of the rectangular box, and the output shaft of the first motor is fixedly connected to the right end of one of the bidirectional threaded rods.

[0019] Preferably, the upper end of the rectangular box is fixedly connected to an annular water storage tank, the inner top space of the annular water storage tank is connected to a water inlet pipe, and two sets of drainage components are symmetrically opened at the inner bottom of the annular water storage tank, each set of drainage components consisting of multiple strip-shaped liquid outlets.

[0020] Preferably, the upper ends of the two arc-shaped guide rings are fixedly connected to connecting rods, the upper ends of the two connecting rods are fixedly connected to fan-shaped sealing plates, the upper ends of the two fan-shaped sealing plates are in contact with the inner top of the rectangular box, and cooperate with the corresponding drainage components.

[0021] A partition plate is fixedly connected to the inner wall of the rectangular box. The rotating sleeve passes through the partition plate and is rotatably sealed to the partition plate. Multiple drain holes are opened on the rear side wall of the rectangular box. Utilizing the heat insulation property of the heat-insulating oil storage cylinder, in conjunction with a temperature sensor, the adjustable cooling mechanism stops working when the oil temperature reaches 80°C, keeping the whole in a heat-insulating and heat-storing state.

[0022] Compared with the prior art, the beneficial effects of this invention are as follows:

[0023] 1. When in use, the heating plate is equipped with heat-conducting spiral blades. On the one hand, the heat-conducting spiral blades increase the contact area between the heat transfer oil and the pipe, and on the other hand, they disrupt the laminar flow state of the heat transfer oil, making the heat transfer oil more uniformly mixed and improving the heat exchange efficiency. Moreover, the whole piece is molded, which makes it safer.

[0024] 2. By using the staggered rotation mechanism, the splitting hollow disc evenly distributes the oil during the heating stage. Combined with the reciprocating rotation of the heat-insulating oil storage cylinder and the splitting hollow disc, as well as the turbulence caused by the heat-conducting fins, the laminar flow of the oil is broken to form turbulence, which allows heat to be transferred quickly and avoids uneven heating of the oil in certain areas.

[0025] 3. This invention employs adjustable gradient cooling, which controls the heat dissipation rate in stages. Combined with the use of a staggered rotation mechanism, it can automatically atomize the liquid in the initial stage, achieving uniform low-speed cooling, and then achieve impact cooling in the later stage. Since the heat-conducting plate swings back and forth with the heat-insulating oil storage cylinder, and the heat-conducting plate is completely exposed, the heat dissipation range can be improved. At the same time, the centrifugal force generated by the swing can prevent the water film, air bubbles, and high-temperature water layer on the surface of the heat sink from being actively "thrown away," allowing the low-temperature fresh water to continuously adhere to the high-temperature wall surface, increasing the average temperature difference, and significantly improving the heat exchange efficiency. This increases the cooling speed without generating significant stress.

[0026] 4. The present invention is equipped with a heat preservation and heat storage device, which keeps the oil temperature stable at 80°C, thus avoiding the next cold start of the device, reducing energy consumption and achieving energy saving. At the same time, it can supply energy to the heating plate at any time, ensuring that the heating plate starts up quickly and works normally. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a weld-free heat-conducting oil heating plate proposed in this invention;

[0028] Figure 2 for Figure 1 A cross-sectional schematic diagram;

[0029] Figure 3 This is a schematic diagram of the structure of a heat transfer oil heating device with a weld-free heat transfer oil heating plate proposed in this invention;

[0030] Figure 4 for Figure 3 Rear view diagram;

[0031] Figure 5 for Figure 3 A schematic diagram of the upper part of the structure;

[0032] Figure 6 for Figure 5 Front and rear cross-sectional view;

[0033] Figure 7 for Figure 6 Enlarged view of point A;

[0034] Figure 8 for Figure 6 Front plan view;

[0035] Figure 9 for Figure 5 A cross-sectional view in the vertical direction;

[0036] Figure 10 This is a schematic diagram of the misaligned rotation mechanism;

[0037] Figure 11 for Figure 10 A schematic diagram of the cross-sectional structure;

[0038] Figure 12 This is a schematic diagram of the adjustable cooling mechanism.

[0039] Figure 13 for Figure 12 The cooling state diagram;

[0040] Figure 14 A cross-sectional view of one of the arc-shaped guide rings connecting to the heat insulation cover;

[0041] Figure 15 This is a schematic diagram showing the connection between the heat-conducting plate and the heat-conducting oil heating device.

[0042] In the diagram: 1. Temperature-conducting plate, 2. Liquid outlet, 3. Liquid inlet, 4. Serpentine channel, 5. Temperature-conducting spiral blade, 6. Support base, 7. Control box, 8. Mounting frame, 9. Circulating pump, 10. Rectangular box, 11. Annular water storage tank, 12. Water inlet pipe, 13. Discharge pipe, 14. First motor, 15. Synchronous pulley, 16. Synchronous belt, 17. Support ring, 18. Insulated oil storage tank, 19. Expansion cylinder, 20. Strip-shaped liquid outlet, 21. Second motor, 22. U-shaped frame, 23. Rotary joint, 24. Mounting frame, 25. Cover, 26. Heating wire, 27. Temperature plate, 28. Flow guide hole, 29. Arc-shaped guide ring, 30. Fan-shaped sealing plate, 31. Connecting rod, 32. T-shaped groove, 33. Sliding groove, 34. Bidirectional threaded rod, 35. Moving block, 36. Connecting frame, 37. Insulation cover, 38. Fixing rod, 39. Return spring, 40. Drain hole, 41. Rotating disk, 42. Connecting rod, 43. Guide rod, 44. Flow divider hollow disk, 45. Rack, 46. Rotating connecting pipe, 47. Rotating sleeve, 48. Transmission gear, 49. T-shaped block, 50. Divider plate, 51. Temperature sensor, 52. Flow divider hole. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0044] This solution is mainly a type of thermal storage heating equipment. After each use, the temperature can be maintained at around 80℃ for thermal energy storage, reducing the energy and time required for the next heating. In addition, the oil temperature can be kept relatively uniform during heating and cooling, ensuring the actual use effect.

[0045] Reference Figures 1-2 A weld-free heat transfer oil heating plate includes a heat transfer plate body 1. The heat transfer plate body 1 is made of carbon steel (preferably Q235 carbon steel with a thickness of 8-12mm, which has both good thermal conductivity and structural strength, and is suitable for the load-bearing and heat exchange requirements of industrial scenarios). The heat transfer plate body 1 has an outlet 2 and an inlet 3 on both sides. Both the outlet 2 and the inlet 3 are integrally formed with a threaded layer, which can be directly connected to an external heat transfer oil delivery pipeline. The outlet 2 and the inlet 3 are connected by a serpentine channel 4. Multiple heat transfer spiral blades 5 are integrally formed inside the serpentine channel 4.

[0046] The working principle of this solution is as follows:

[0047] First, the external heat transfer oil delivery pipe is connected by threads to the inlet 3 and outlet 2 respectively. After installation, the heat transfer oil circulation system is started, and the high-temperature heat transfer oil enters the serpentine channel 4 through the inlet 3. During the flow, the heat transfer oil comes into full contact with the inner wall of the serpentine channel 4 and the heat-conducting spiral blades 5. The heat-conducting spiral blades 5 increase the contact area between the heat transfer oil and the pipe, and also disrupt the laminar flow state of the heat transfer oil, making the heat transfer oil more uniformly mixed and improving the heat exchange efficiency. Subsequently, the heat carried by the heat transfer oil is transferred to the heat-conducting plate 1 through the serpentine channel 4 and the heat-conducting spiral blades 5. The heat-conducting plate 1 quickly conducts the heat to the entire plate surface, achieving uniform heating of the object in contact with the plate surface. After heat exchange, the low-temperature heat transfer oil flows out through the outlet 2, enters the external circulation system for heating, and then re-enters the serpentine channel 4, forming a continuous and stable heat exchange cycle.

[0048] Reference Figures 3-15 The present invention also discloses a heat transfer oil heating device for a weld-free heat transfer oil heating plate, which is used to heat the heat transfer oil used in the heating plate. It includes a support base 6, a control box 7 installed on the front side of the support base 6, the control box 7 integrates a PLC controller, relays and wiring terminals, and has a touch operation panel and display screen embedded on its surface, which can display parameters such as oil temperature and motor running status in real time, and can manually set heating temperature, cooling threshold, etc. This is prior art and will not be described in detail here. The upper end of the support base 6 is fixedly connected to a mounting frame 8, and a rectangular box 10 is provided on the inner side of the mounting frame 8.

[0049] Multiple mounting brackets are fixedly connected to the inner wall of the rectangular box 10. These brackets collectively mount a support ring 17. An insulated oil storage cylinder 18 containing oil is rotatably connected to the inner side of the support ring 17. The rotation is achieved using a deep groove ball bearing, providing good support and smooth rotation, reducing rotational friction loss. The insulated oil storage cylinder 18 is made of insulated material, specifically consisting of an outer frame layer, an inner frame layer, and a middle insulated cotton layer, effectively reducing heat loss from the internal oil and lowering energy consumption. The insulated oil storage cylinder 18 is internally equipped with… Temperature sensor 51 has its probe inserted into the oil, and its output is electrically connected to the PLC controller in control box 7. It can collect the oil temperature in real time and feed it back to the controller to achieve automatic temperature control. Temperature sensor 51 is a high-temperature resistant platinum resistance thermometer PT100 / PT1000, which has high temperature measurement accuracy, good stability, temperature resistance ≥250℃, and protection level ≥IP67. The protective sleeve is made of 304 / 316L stainless steel, and the sealing and insulation parts are made of styrene silicone rubber, which is suitable for high-temperature working conditions of heat transfer oil. The specific installation location is on the lower rear side wall of the insulated oil storage cylinder, avoiding the oil inlet / outlet, weld seams, and other areas. It is installed at a radial angle of 15°, inserting 1 / 5 of the cylinder's inner diameter without touching the cylinder wall or internal components, leaving room for disassembly and verification. It connects to the temperature sensor 51 via a threaded mounting base, using a high-temperature resistant graphite gasket + PTFE combination seal or a metal end face seal. A sealing cap is added to the cable outlet to prevent oil leakage. The entire system uses a three-wire connection, employing a high-temperature resistant, flame-retardant shielded cable (temperature resistance ≥200℃). The insulated oil storage cylinder 18 and the support ring 17 are rotatably connected via bearings. A cover 25 is fixedly connected to the inner top of the rectangular box 10, and the cover 25 and the top of the insulated oil storage cylinder 18 are rotatably sealed using a rotary sealing ring. The rotating sealing ring is made of styrene-based silicone rubber, which can withstand long-term temperatures of 250-300℃ to prevent oil leakage. Multiple heating wires 26 are fixedly connected to the lower end of the cover 25. The heating wires 26 are made of nickel-chromium alloy and the power can be selected from 500-1000W according to the requirements. Their terminals pass through the cover 25 and are electrically connected to the relay in the control box 7. The wiring must be close to the inner side of the insulation layer of the outer wall of the heat-insulating oil storage cylinder 18, avoiding the high-temperature areas of the cylinder and easily worn parts such as welds and edges. High-temperature resistant clamps are used to fix the wiring during the wiring process. The cable is a high-temperature resistant flame-retardant shielded cable (temperature resistance ≥200℃). It is kept away from oil leakage risk points and moving parts throughout the process to ensure neat wiring and reliable insulation. The controller controls the on and off of the circuit to realize oil heating.

[0050] The system also includes an oil injection mechanism, which includes a distribution hollow disc 44 disposed inside the heat-insulated oil storage cylinder 18. The distribution hollow disc 44 is made of stainless steel and is disc-shaped. Multiple distribution holes 52 are evenly opened at the bottom of the disc, which can evenly distribute the injected oil to various areas of the heat-insulated oil storage cylinder 18 to avoid local oil accumulation. A rotating connecting pipe 46 is fixedly connected to the lower end of the distribution hollow disc 44. The rotating connecting pipe 46 is used to inject oil through the oil injection component. The rotating connecting pipe 46 is connected to the distribution hollow disc 44. A rotating sleeve 47 is fixedly connected to the lower end of the heat-insulated oil storage cylinder 18. The lower end of the rotating connecting pipe 46 passes through the rotating sleeve 47, and the two are connected by a rotating sealing ring to achieve a rotating seal connection to prevent oil leakage from the connection.

[0051] The oil injection assembly includes a circulation pump 9 installed on one side of the support base 6. The oil inlet of the circulation pump 9 is connected to the liquid outlet 2 of the temperature-conducting plate 1. The oil outlet of the circulation pump 9 extends to the inner bottom of the rectangular box 10. A U-shaped frame 22 is fixedly connected to the inner bottom of the rectangular box 10. A rotating connecting pipe 46 passes through the U-shaped frame 22 and is rotatably connected to the U-shaped frame 22 through a bearing. The lower end of the rotating connecting pipe 46 is connected to the oil outlet of the circulation pump 9. A discharge pipe 13 is provided through the upper end of the cover 25. The discharge pipe 13 is used to discharge oil and is connected to the liquid inlet 3 of the temperature-conducting plate 1. An expansion cylinder 19 connected to the heat-insulated oil storage cylinder 18 is installed on the upper end of the cover 25. The expansion cylinder 19 is made of transparent glass, which allows for direct observation of the oil level. It can also accommodate the volume expansion of the oil after heating, avoiding excessive pressure inside the heat-insulated oil storage cylinder 18, effectively improving the safety of the device operation, and preventing oil leakage or equipment damage.

[0052] This also includes a staggered rotation mechanism, which is used to realize the reciprocating rotation of the insulated oil storage cylinder 18 and the diversion hollow disk 44, so that the oil inside the insulated oil storage cylinder 18 can move fully, avoid uneven local heating of the oil, and improve the uniformity of oil heating temperature. The staggered rotation mechanism includes two guide rods 43 fixedly connected between the inner walls of the left and right sides of the rectangular box 10. The two guide rods 43 are arranged in parallel, made of a smooth shaft material, and have a smooth surface to reduce sliding friction. A common through-hole is provided on the two guide rods 43. Mounting frame 24, racks 45 are fixedly connected to the rear side wall of the upper part and the front side wall of the lower part of mounting frame 24. Gears 48 are installed on the rotating connecting pipe 46 and the rotating sleeve 47 respectively. The two gears 48 mesh with the two racks 45 respectively. The lower end of the rectangular box 10 is equipped with a second motor 21. The output shaft of the second motor 21 extends into the interior of the rectangular box 10 and is fixedly connected to a rotating disk 41. A linkage rod is rotatably connected to the upper eccentric part of the rotating disk 41. The other end of the linkage rod rotates with the mounting frame 24.

[0053] When the rotating disk 41 rotates, the mounting frame 24 can be moved back and forth by the linkage rod. During operation, the control box 7 controls the second motor 21 to start. The second motor 21 drives the rotating disk 41 to rotate at a constant speed. The rotating disk 41 pulls the mounting frame 24 along the guide rod 43 to move back and forth by the eccentric linkage rod. Then, through the rack 45 and gear 48, the insulated oil storage cylinder 18 and the diversion hollow disk 44 are driven to rotate in opposite directions. The opposite rotation of the two will generate bidirectional shear force on the oil inside the insulated oil storage cylinder 18, breaking the laminar flow formed by the original static or slow flow of the oil (in the laminar flow state, the oil will show layered flow, and the relative movement between each layer of oil is slow. Heat transfer relies only on heat conduction, which easily leads to the upper layer of oil cooling down quickly and the lower layer of oil cooling down slowly, forming an obvious temperature gradient). The shear force generated by the bidirectional reverse rotation directly tears the laminar interface of the oil, causing the originally stratified oil to mix and intertwine. Simultaneously, the temperature-conducting plate 27 oscillates synchronously with the insulated oil storage cylinder 18, and the guide holes 28 on the surface of the temperature-conducting plate 27 create turbulence in the flowing oil. When the oil flows through the guide holes 28, local eddies are generated, further intensifying the turbulent flow and completely destroying the laminar structure, resulting in an irregular turbulent flow. During this turbulent flow, the high-temperature oil and the low-temperature oil collide and mix rapidly, allowing heat to be quickly transferred throughout the entire oil system, thus achieving uniform oil temperature.

[0054] This includes an adjustable cooling mechanism for gradient cooling when the oil temperature is too high, stabilizing the oil temperature at 80℃ to prevent the oil layer inside the heating plate and heating tube from being continuously heated beyond its normal operating temperature, leading to localized overheating, coking, and cracking. The adjustable cooling mechanism includes temperature-conducting elements symmetrically arranged on both sides of the inner wall of the insulated oil storage cylinder 18. Each set of temperature-conducting elements consists of multiple temperature-conducting plates 27, and each temperature-conducting plate 27 penetrates... The heat-conducting plate 27 penetrates the inner wall of the insulated oil storage cylinder 18 and is fixedly connected to the insulated oil storage cylinder 18. It should be noted that the heat-conducting plate 27 is made of copper alloy, which has high thermal conductivity and mechanical strength. It can quickly conduct heat inside the insulated oil storage cylinder 18 to the outside. Each heat-conducting plate 27 has multiple flow guide holes 28 in the part inside the insulated oil storage cylinder 18. The flow guide holes 28 are circular. When the oil moves relative to the heat-conducting plate 27, it can improve the fluidity of the oil, make the heat distribution of the oil more uniform, and improve the cooling efficiency.

[0055] Both heat-conducting components are fitted with heat-insulating covers 37 on the outer parts of the heat-insulating oil storage cylinder 18 to insulate them and prevent heat loss during non-cooling conditions. Multiple heat-insulating blocks can be installed inside the heat-insulating covers to fit the gaps between the heat-conducting plates 27. Through the relative and opposing movements of the two heat-insulating covers 37, heat insulation and heat dissipation of the heat-conducting components can be achieved. Slide grooves 33 are provided on the front and rear inner walls of the rectangular box 10. A bidirectional threaded rod 34 is rotatably connected between the inner walls of both sides of each slide groove 33. A movable block 35 is threaded to each of the two threaded ends of each bidirectional threaded rod 34. Each movable block 35 slides against the inner wall of the corresponding slide groove 33. The connection is as follows: one side of each movable block 35 passes through the slot of the corresponding slide groove 33 and is fixedly connected to a connecting frame 36. An arc-shaped guide ring 29 is fixedly connected between every two mating connecting frames 36. A T-shaped groove 32 is opened in each arc-shaped guide ring 29. A T-shaped block 49 is slidably connected in each T-shaped groove 32. Each T-shaped block 49 is elastically connected to the inner wall of the corresponding T-shaped groove 32 through a return spring 39. In this way, each time the heat insulation cover 37 is removed from the heat-conducting component, it can be in the center position, which is convenient for subsequent reset. Each T-shaped block 49 is fixedly connected to the corresponding heat insulation cover 37 through a fixing rod 38.

[0056] The right ends of the two bidirectional threaded rods 34 extend to the outside and are fixedly connected to synchronous pulleys 15. The two synchronous pulleys 15 are connected by a synchronous belt 16 to ensure that the two bidirectional threaded rods 34 rotate synchronously, thereby realizing the synchronous movement of the moving blocks 35 on both sides. A first motor 14 is installed on the right side of the rectangular box 10, and the output shaft of the first motor 14 is fixedly connected to the right end of one of the bidirectional threaded rods 34.

[0057] Furthermore, such as Figure 6 , Figure 7 As shown, a ring-shaped water storage tank 11 is fixedly connected to the upper end of the rectangular box 10. An air inlet is provided at the top of the ring-shaped water storage tank 11. A water inlet pipe 12 connects to the inner top space of the ring-shaped water storage tank 11 and is connected to an external water pump for supplying distilled water. A liquid level sensor is installed inside the ring-shaped water storage tank 11 for automatic water replenishment. Two sets of drainage components are symmetrically arranged at the inner bottom of the ring-shaped water storage tank 11. Each set of drainage components consists of multiple strip-shaped drop outlets 20. The upper ends of the two arc-shaped guide rings 29 are... A connecting rod 31 is fixedly connected, and a fan-shaped sealing plate 30 is fixedly connected to the upper end of each of the two connecting rods 31. The upper ends of the two fan-shaped sealing plates 30 are in contact with the inner top of the rectangular box 10 and cooperate with the corresponding drainage parts. Utilizing the heat insulation property of the heat-insulating oil storage cylinder 18, and in conjunction with the temperature sensor 51, the adjustable cooling mechanism stops working when the oil temperature drops to 80°C, keeping the whole system in a heat-insulating and heat-storing state. This can avoid a cold start state when used next time, reduce actual energy consumption, and achieve energy-saving effect.

[0058] During the cooling process, as the two insulation covers 37 move in opposite directions, the two connecting rods 31 drive the two fan-shaped sealing plates 30 to move in opposite directions, thus slowly opening the strip-shaped liquid outlet 20. In the initial stage of opening, the amount of water falling is small (the opening diameter of the strip-shaped liquid outlet 20 is small). At this time, since the two insulation covers 37 also move slowly in opposite directions, the two heat-conducting components are also slowly exposed. In this way, the insulation covers 37 and the heat-conducting components (multiple heat-conducting plates 27) form multiple heat dissipation channels. The falling water will pass through multiple heat dissipation channels. In this state, a small amount of falling water will enter the vertical heat dissipation channel after passing through the heat dissipation channel. After passing through the channel, the water cannot spread laterally and continues to flow close to the surface of the heat sink. At this time, due to the small water supply, the water film is thin and the flow rate is low. Under the shearing and impact forces generated by the high-frequency reciprocating oscillation of the heat sink, the water is continuously torn and broken, quickly forming a large number of fine water mists. These mists are evenly dispersed in the vertical heat dissipation channel. The atomized water droplets have small particle size and large specific surface area, which can fully cover the surface of the heat sink and carry out gentle convective and evaporative heat exchange with the high-temperature wall surface. This achieves uniform, low-speed, and stable cooling, avoiding local sudden cooling and the generation of thermal stress. In addition, at this time, because the actual contact area between the heat sink and the water is small and the heat exchange surface is relatively small, the cooling rate is slow. This stage is a low-speed heat dissipation.

[0059] As the opening range of the strip-shaped liquid discharge outlet 20 increases, more and more water falls, and the heat dissipation rate relatively increases. When the strip-shaped liquid discharge outlet 20 is fully opened, the liquid discharge rate is the fastest, at which point the water is at its highest level. Figure 13 In this state, the flow rate of the falling water increases significantly, and a large amount of water continuously flows into the vertical heat dissipation channel. At this time, the total amount of water exceeds the upper limit of the heat sink's ability to break and atomize. The water flow is no longer dispersed into a mist, but forms a continuous water jet and water film, which directly impacts the surface of the high-temperature heat sink at high speed. As the heat-conducting plate 27 swings back and forth with the heat-insulating oil storage cylinder 18, and the heat-conducting plate 27 is completely exposed, the heat dissipation range can be improved. At the same time, the centrifugal force generated by the swing can actively "throw away" the water film, bubbles, and high-temperature water layer on the surface of the heat sink, allowing the low-temperature fresh water to continuously adhere to the high-temperature wall, increasing the average temperature difference and greatly improving the heat exchange efficiency. It is worth mentioning that although the water level is relatively high in the early stage and relatively low in the later stage during the water discharge process, the opening amount has a much greater impact on the water flow rate than the change in water level difference when the water level difference is not large. Therefore, the water flow rate will not decrease even if the opening is opened due to the decrease in water level.

[0060] During the cooling process described above, similar to the movement of the internal oil during heating, the uniformity of cooling is also quite good.

[0061] In addition, a partition plate 50 is fixedly connected to the inner wall of the rectangular box 10, and a rotating sleeve 47 passes through the partition plate 50 and is rotatably sealed to the partition plate 50. Multiple drainage holes 40 are provided on the rear side wall of the rectangular box 10.

[0062] In this invention, after the device is started, the control box 7 controls the circulation pump 9 to start. The circulation pump 9 draws out the oil in the temperature-conducting plate 1 and delivers it to the rotating connecting pipe 46 through the oil outlet. The oil enters the distribution hollow disk 44 through the rotating connecting pipe 46. The distribution hollow disk 44 distributes the oil evenly to various areas inside the heat-insulating oil storage cylinder 18 through multiple distribution holes 52 at the bottom, avoiding local accumulation of oil.

[0063] At the same time, the control box 7 controls the heating wire 26 to be energized, and the heating wire 26 heats the oil inside the heat-insulated oil storage cylinder 18. The temperature sensor 51 collects the oil temperature in real time and feeds it back to the PLC controller in the control box 7 to realize real-time monitoring and control of the oil temperature.

[0064] During the heating process, the control box 7 controls the second motor 21 to start, which drives the rotating disk 41 to rotate at a constant speed. The rotating disk 41 pulls the mounting frame 24 to move back and forth along the guide rod 43 through the eccentrically connected linkage rod. The two racks 45 on the mounting frame 24 mesh with the two gears 48 on the rotating connecting pipe 46 and the rotating sleeve 47, respectively, thereby driving the heat-insulating oil storage cylinder 18 and the diverting hollow disk 44 to rotate in opposite directions.

[0065] The reciprocating rotation of the insulated oil storage cylinder 18 and the hollow distribution plate 44 generates bidirectional shear force on the internal oil, tearing apart the original laminar interface of the oil and disrupting its stratified flow, causing the previously stratified oil to mix and intertwine. Simultaneously, the temperature-conducting fins 27 on the inner wall of the insulated oil storage cylinder 18 oscillate synchronously with it. The guide holes on the surface of the temperature-conducting fins 27 create turbulence in the flowing oil, generating localized eddies as the oil passes through the guide holes, further intensifying the turbulent flow and forming a turbulent state. During this turbulent flow, the high-temperature oil and the low-temperature oil collide and mix rapidly, and heat is quickly transferred throughout the entire oil system, ensuring uniform heating and preventing uneven heating in certain areas.

[0066] The heated oil is transported to the inlet of the temperature-conducting plate 1 through the discharge pipe 13 on the cover 25 to provide heat to the heating plate and enable the heating plate to work normally; the expansion cylinder 19 accommodates the volume of the oil that expands after being heated in real time, avoids excessive pressure inside the heat-insulated oil storage cylinder 18, and ensures the safe operation of the device.

[0067] When the device is stopped, the control box 7 controls the heating wire 26 to cut off the power, stopping the heating of the oil. At the same time, the adjustable cooling mechanism is activated to gradually cool the oil inside the insulated oil storage cylinder 18, preventing the oil from overheating, coking, or cracking due to the residual heat.

[0068] During the cooling process, the second motor 21 continues to work, driving the insulated oil storage cylinder 18 and the flow-dividing hollow disk 44 to continue to rotate in opposite directions. Its function is the same as that of the heating process, continuously breaking the laminar flow state of the oil, keeping the oil in turbulent flow, ensuring uniform internal temperature of the oil, avoiding local cooling that is too fast or too slow, and providing a uniform temperature basis for gradient cooling.

[0069] The control box 7 starts the first motor 14, which drives one of the bidirectional threaded rods 34 to rotate. Through the transmission action of the synchronous pulley 15 and the synchronous belt 16, the two bidirectional threaded rods 34 rotate synchronously, which in turn drives the moving blocks 35 on the two bidirectional threaded rods 34 to move synchronously in opposite directions along the slide groove 33. The moving blocks 35 drive the arc-shaped guide ring 29 to move in opposite directions through the connecting frame 36. The arc-shaped guide ring 29 drives the heat insulation cover 37 to move in opposite directions through the fixed rod 38, gradually releasing the heat insulation of the heat-conducting plate 27, slowly exposing the heat-conducting plate 27 and forming multiple heat dissipation channels.

[0070] As the insulation cover 37 moves in opposite directions, the connecting rod 31 drives the fan-shaped sealing plate 30 to move in opposite directions synchronously, gradually opening the strip-shaped liquid outlet at the bottom of the annular water tank 11. The water in the annular water tank 11 falls through the strip-shaped liquid outlet and enters the heat dissipation channel formed by the heat-conducting plate 27.

[0071] In the initial cooling phase, the opening diameter of the strip-shaped liquid outlet is small, resulting in a small volume of water falling. Furthermore, the exposed surface of the heat-conducting plate 27 is also limited. Once the water enters the heat dissipation channel, it is constrained by the channel and cannot diffuse laterally, continuing to flow close to the surface of the heat-conducting plate 27. Under the shearing and impact forces generated by the high-frequency reciprocating oscillation of the heat-conducting plate 27 along with the insulated oil storage cylinder 18, the water is continuously torn and broken, forming a large amount of fine water mist. This mist is evenly dispersed within the heat dissipation channel, ensuring full contact between the water mist and the high-temperature surface of the heat-conducting plate 27. Through convective and evaporative heat transfer, a slow, uniform, and stable cooling process is achieved, preventing localized sudden cooling and the generation of thermal stress. At this stage, the heat dissipation rate is relatively slow, constituting a low-speed heat dissipation phase.

[0072] As the insulation cover 37 continues to move in opposite directions, the opening range of the strip-shaped liquid discharge port gradually increases, and the amount of water falling continuously increases, thereby increasing the heat dissipation rate. When the strip-shaped liquid discharge port is fully open, the flow rate of the falling water reaches its maximum. At this time, the total amount of water exceeds the upper limit of the breaking and atomization that the temperature-conducting plate 27 can break up, and the water flow forms a continuous water jet and water film, which directly impacts the surface of the high-temperature temperature-conducting plate 27 at high speed. At the same time, the temperature-conducting plate 27 continues to swing back and forth with the insulation oil storage cylinder 18 and is completely exposed, increasing the heat dissipation range and further improving the heat dissipation efficiency. This achieves rapid cooling. The use of gradient cooling can avoid the situation where the initial cooling rate is too fast and causes large thermal stress while ensuring cooling efficiency, thus improving the overall service life.

[0073] During the cooling process, the reciprocating rotation of the insulated oil storage cylinder 18 and the flow-dividing hollow disk 44 continuously maintains the oil in a uniform turbulent state, ensuring that the oil can dissipate heat evenly in all areas and avoiding changes in oil performance caused by uneven local cooling; the temperature sensor collects the oil temperature in real time and feeds the data back to the control box 7 to adjust the cooling rate in real time.

[0074] When the temperature sensor detects that the oil temperature inside the insulated oil storage tank 18 has dropped to 80°C, the control box 7 controls the adjustable cooling mechanism to stop working. Specifically, it controls the first motor 14 to reverse, driving the bidirectional threaded rod 34 to rotate in the opposite direction, so that the moving block 35, connecting frame 36, arc-shaped guide ring 29, and insulation cover 37 move synchronously relative to each other. The insulation cover 37 re-wraps the heat-conducting sheet 27 to achieve insulation. At the same time, the fan-shaped sealing plate 30 moves relative to each other, closing the strip-shaped liquid outlet and stopping the water from falling.

[0075] At this time, the second motor 21 stops working, and the insulated oil storage cylinder 18 and the diverting hollow disk 44 stop rotating in opposite directions. The insulated oil storage cylinder 18 uses its own heat insulation structure to effectively reduce the heat loss of the internal oil. With the real-time monitoring of the temperature sensor, the oil is kept in a stable heat storage state of 80°C.

[0076] This thermal storage state prevents the device from starting in a cold state the next time it is used, reducing actual energy consumption and achieving energy-saving effects; at the same time, the oil maintains a stable temperature, which can provide heat to the heating plate at any time, ensuring that the heating plate starts up quickly and works normally.

[0077] The condensate or excess water generated during the cooling process is discharged through the drain hole 40 on the rear side wall of the rectangular box 10.

[0078] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A weld-free heat-conducting oil heating plate, characterized in that, include: The heat-conducting plate (1) is made of carbon steel. The heat-conducting plate (1) has an outlet (2) and an inlet (3) on both sides. The outlet (2) and the inlet (3) are connected by a serpentine channel (4). Multiple heat-conducting spiral blades (5) are integrally formed inside the serpentine channel (4). When the oil passes through the serpentine channel (4), the heat conduction through the heat-conducting spiral blades (5) can increase the heat exchange area with the heat-conducting plate (1). Furthermore, the heat conduction through the heat-conducting spiral blades (5) can be laminarized to improve the heat exchange effect.

2. A heat transfer oil heating device for a weld-free heat transfer oil heating plate, used for heating the heat transfer oil used in the heating plate as described in claim 1, characterized in that, include: A support base (6) is provided. A control box (7) is installed on the front side of the support base (6). An installation frame (8) is fixedly connected to the upper end of the support base (6). A rectangular box (10) is provided on the inner side of the installation frame (8). Multiple mounting brackets are fixedly connected to the inner wall of the rectangular box (10). A support ring (17) is installed on the multiple mounting brackets together. An insulated oil storage cylinder (18) containing oil is rotatably connected to the inner side of the support ring (17). The insulated oil storage cylinder (18) is made of heat-insulating material. A temperature sensor (51) is installed inside the insulated oil storage cylinder (18). The insulated oil storage cylinder (18) and the support ring (17) are rotatably connected through a bearing. A cover (25) is fixedly connected to the top of the rectangular box (10). The cover (25) is rotatably sealed to the top of the insulated oil storage cylinder (18). Multiple heating wires (26) are fixedly connected to the lower end of the cover (25). The oil injection mechanism includes a flow-dividing hollow disk (44) disposed inside the heat-insulating oil storage cylinder (18). The bottom of the flow-dividing hollow disk (44) is provided with multiple flow-dividing holes (52). A rotating connecting pipe (46) is fixedly connected to the lower end of the flow-dividing hollow disk (44). The rotating connecting pipe (46) is used to inject oil through the oil injection assembly. The rotating connecting pipe (46) is connected to the flow-dividing hollow disk (44). A rotating sleeve (47) is fixedly connected to the lower end of the heat-insulating oil storage cylinder (18). The lower end of the rotating connecting pipe (46) passes through the rotating sleeve (47) and is rotated and sealed. The staggered rotation mechanism is used to realize the reciprocating rotation of the heat-insulating oil storage cylinder (18) and the diversion hollow disk (44) to improve the uniformity of oil heating temperature.

3. The heat transfer oil heating device with a weld-free heat transfer oil heating plate according to claim 2, characterized in that, The oil injection assembly includes a circulation pump (9) installed on one side of the support base (6). The oil outlet of the circulation pump (9) extends to the inner bottom of the rectangular box (10). A U-shaped frame (22) is fixedly connected to the inner bottom of the rectangular box (10). A rotating connecting pipe (46) passes through the U-shaped frame (22) and is rotatably connected to the U-shaped frame (22) through a bearing. The lower end of the rotating connecting pipe (46) is connected to the oil outlet of the circulation pump (9). A discharge pipe (13) is provided through the upper end of the cover (25). The discharge pipe (13) is used to discharge oil. An expansion cylinder (19) connected to the heat-insulated oil storage cylinder (18) is installed at the upper end of the cover (25).

4. The heat transfer oil heating device with a weld-free heat transfer oil heating plate according to claim 2, characterized in that, The misaligned rotation mechanism includes two guide rods (43) fixedly connected between the inner walls of the left and right sides of the rectangular box (10). A mounting frame (24) is provided through the two guide rods (43). A rack (45) is fixedly connected to the rear side wall of the upper part and the front side wall of the lower part of the mounting frame (24). Gears (48) are installed on the rotating connecting pipe (46) and the rotating sleeve (47). The two gears (48) mesh with the two racks (45) respectively.

5. The heat transfer oil heating device with a weld-free heat transfer oil heating plate according to claim 4, characterized in that, The lower end of the rectangular box (10) is equipped with a second motor (21). The output shaft of the second motor (21) extends into the rectangular box (10) and is fixedly connected to a rotating disk (41). The upper end of the rotating disk (41) is eccentrically connected to a linkage rod. The other end of the linkage rod is rotatably connected to the mounting frame (24). When the rotating disk (41) rotates, the mounting frame (24) can be moved back and forth by the linkage rod.

6. The heat transfer oil heating device with a weld-free heat transfer oil heating plate according to claim 2, characterized in that, It also includes an adjustable cooling mechanism, which includes temperature-conducting components symmetrically arranged on both sides of the inner wall of the insulated oil storage cylinder (18). Each set of temperature-conducting components consists of multiple temperature-conducting plates (27). Each temperature-conducting plate (27) penetrates the inner wall of the insulated oil storage cylinder (18) and is fixedly connected to the insulated oil storage cylinder (18). Each temperature-conducting plate (27) located inside the insulated oil storage cylinder (18) has multiple flow guide holes (28). Both of the aforementioned heat-conducting components are fitted with heat-insulating covers (37) on the outer part of the heat-insulating oil storage cylinder (18). Through the relative movement and back-to-back movement of the two heat-insulating covers (37), the heat-conducting components can achieve heat insulation and heat dissipation.

7. The heat transfer oil heating device with a weld-free heat transfer oil heating plate according to claim 6, characterized in that, The rectangular box (10) has a sliding groove (33) on its front and rear inner walls. A two-way threaded rod (34) is rotatably connected between the inner walls of each sliding groove (33). A moving block (35) is threaded to the two threaded ends of each two-way threaded rod (34). Each moving block (35) is slidably connected to the inner wall of the corresponding sliding groove (33). One side of each moving block (35) passes through the groove of the corresponding sliding groove (33) and is fixedly connected to a connecting frame (36). An arc-shaped guide ring (29) is fixedly connected between each pair of cooperating connecting frames (36). A T-shaped groove (32) is opened in each arc-shaped guide ring (29). A T-shaped block (49) is slidably connected in each T-shaped groove (32). Each T-shaped block (49) is elastically connected to the inner wall of the corresponding T-shaped groove (32) by a reset spring (39). Each T-shaped block (49) is fixedly connected to the corresponding heat insulation cover (37) by a fixing rod (38).

8. The heat transfer oil heating device with a weld-free heat transfer oil heating plate according to claim 7, characterized in that, The right ends of the two bidirectional threaded rods (34) extend to the outside and are fixedly connected to a synchronous pulley (15). The two synchronous pulleys (15) are connected by a synchronous belt (16). A first motor (14) is installed on the right side of the rectangular box (10). The output shaft of the first motor (14) is fixedly connected to the right end of one of the bidirectional threaded rods (34).

9. The heat transfer oil heating device with a weld-free heat transfer oil heating plate according to claim 7, characterized in that, The upper end of the rectangular box (10) is fixedly connected to an annular water storage tank (11). The inner top space of the annular water storage tank (11) is connected to a water inlet pipe (12). The inner bottom of the annular water storage tank (11) is symmetrically provided with two sets of drainage components. Each set of drainage components consists of multiple strip-shaped liquid outlets (20).

10. The heat transfer oil heating device with a weld-free heat transfer oil heating plate according to claim 9, characterized in that, The upper ends of the two arc-shaped guide rings (29) are fixedly connected to connecting rods (31), and the upper ends of the two connecting rods (31) are fixedly connected to fan-shaped sealing plates (30). The upper ends of the two fan-shaped sealing plates (30) are in contact with the inner top of the rectangular box (10) and cooperate with the corresponding drainage components. A partition plate (50) is fixedly connected to the inner wall of the rectangular box (10). A rotating sleeve (47) passes through the partition plate (50) and is rotatably sealed to the partition plate (50). Multiple drain holes (40) are opened on the rear side wall of the rectangular box (10). Utilizing the heat insulation properties of the heat-insulating oil storage cylinder (18) and in conjunction with the temperature sensor (51), the adjustable cooling mechanism stops working when the oil temperature drops to 80°C, so that the whole is in a heat-insulating and heat-storing state.

Images