A steam heated conduction oil furnace and method of use

Abstract

The present application belongs to the technical field of heat conducting oil furnace, especially a steam heating heat conducting oil furnace and its using method, aiming at the problem that the existing wood processing increases energy consumption, cannot discharge air in the heat conducting oil in time, and cannot quickly cook the wood block, the following scheme is proposed, which comprises a combustion bin, a water boiling bucket for boiling water is penetrated through the top of the combustion bin and is fixed by bolts, two bases are arranged on one side of the combustion bin, and an oil storage barrel and a cooking barrel are respectively fixed on the top of the two bases by bolts, in the present application, the wood chips and sawdust in the wood factory can be put into the combustion bin as fuel for heating heat conducting oil, the cost of heating heat conducting oil is reduced, in addition, the fuel can be automatically put, the risk caused by manual fuel putting is reduced, in addition, the second spiral heat conversion pipe and the multiple serpentine heat conversion pipes can cook the wood block in multiple directions, and the cooking efficiency of the wood block is improved.

Description

Technical Field

[0001] This invention relates to the field of thermal oil furnace technology, and in particular to a steam-heated thermal oil furnace and its usage method. Background Technology

[0002] A thermal oil heater directly heats the organic carrier thermal oil by inserting an electric heater into it. The heated thermal oil is then transported to the heat-using equipment via a high-temperature oil pump in a liquid phase circulation. The oil then returns to the electric heating oil heater from the outlet of the heat-using equipment, forming a complete circulating heating system. For example, a thermal oil heater can be used in a wood processing plant to prevent wood blocks from rotting and being infested by insects.

[0003] However, some existing thermal oil heaters still have some shortcomings in use:

[0004] 1. Existing thermal oil furnaces generally heat the thermal oil by burning coal, gas, oil, or electricity, which increases energy consumption and costs when using thermal oil furnaces to process wood.

[0005] 2. When heating the heat transfer oil, air may be present in the oil. If the air cannot be expelled from the heat transfer oil in time, it will affect the subsequent use of the heat transfer oil furnace.

[0006] 3. The thermal oil furnace cannot quickly steam and cook the wood blocks.

[0007] To address the above problems, this invention proposes a steam-heated thermal oil furnace and its usage method. Summary of the Invention

[0008] The purpose of this invention is to address the shortcomings of existing technologies in wood processing, such as increased energy consumption, inability to promptly remove air from the heat transfer oil, and inability to quickly steam and process wood blocks. The invention proposes a steam-heated heat transfer oil furnace and its usage method.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A steam-heated thermal oil furnace includes a combustion chamber, the top of which is bolted to a water-boiling tank for boiling water. Two bases are provided on one side of the combustion chamber, and an oil storage tank and a cooking tank are bolted to the top of the two bases respectively. A cover plate is hinged to one side of the cooking tank.

[0011] The packing structure, located on one side of the combustion chamber, is used to feed wood chips and sawdust from the factory into the combustion chamber as fuel.

[0012] The cooking structure, located inside the oil storage tank and the first spiral heat conversion tube, is used to heat the heat transfer oil and cook the wood.

[0013] In one possible design, the packing structure includes a feed inlet located on one side of the combustion chamber. A storage tank is bolted to one side of the combustion chamber, and a hole matching the feed inlet is provided on one side of the storage tank. A rotating shaft is rotatably connected to the inner wall of one side of the combustion chamber via a base. A high-temperature resistant baffle for sealing the feed inlet is fixed to the outer wall of the rotating shaft. A worm gear is rotatably connected to the inner wall of one side of the combustion chamber, and a worm wheel matching the worm gear is fixed to the outer wall of the rotating shaft. The rotating shaft rotatably passes through the storage tank. A gearbox is bolted to one side of the combustion chamber, and one end of the rotating shaft is fixedly connected to the input shaft of the gearbox via a coupling. The input shaft of the gearbox... The output shaft is fixedly connected to one end of the worm gear via a coupling. A threaded rod is fixed to the end of the rotating shaft away from the combustion chamber. An L-shaped rod is threaded onto the outer wall of the threaded rod. One end of the L-shaped rod extends into the storage box and is fixed with a push plate, which is slidably connected inside the storage box. The rotation of the rotating shaft drives the worm gear to rotate. The cooperation between the worm gear and the worm wheel can release the high-temperature baffle from the inlet. At this time, the wood chips and sawdust in the storage box enter the combustion chamber to be used as fuel. The push plate moves towards the inlet under the action of the threaded rod, pushing the wood chips and sawdust in the storage box towards the inlet, facilitating the later entry of wood chips and sawdust into the combustion chamber.

[0014] In one possible design, the packing structure further includes a first bevel gear fixedly sleeved on the outer wall of the rotating shaft. A reciprocating screw is rotatably connected to one side of the inner wall of the storage tank via a base. A second bevel gear meshing with the first bevel gear is fixed to the top of the reciprocating screw. A lifting plate is threaded onto the outer wall of the reciprocating screw, and the lifting plate is slidably connected to one side of the inner wall of the storage tank. Multiple vertical plates are bolted to the bottom of the lifting plate. Multiple inclined plates are fixedly anchored to the side of the vertical plates away from the combustion chamber. A protective cover is fixed to one side of the inner wall of the storage tank, and both the first and second bevel gears are located within the protective cover. The protective cover allows for... The lifting plate is equipped with corrugated pipes at both the top and bottom, and the two ends of the two corrugated pipes are fixedly connected to the base. The two corrugated pipes are sleeved on the outer wall of the reciprocating screw to protect the reciprocating screw. When the rotating shaft rotates, the reciprocating screw is driven to rotate through the meshing of the first and second bevel gears. The reciprocating screw drives the lifting plate to move up and down reciprocally. The vertical plate drives the vertical plate and the inclined plate to move up and down reciprocally. The vertical plate and the inclined plate can disperse the wood fragments and wood chips accumulated at the feed inlet, so as to prevent the wood fragments and wood chips from accumulating and being unable to enter the combustion chamber.

[0015] In one possible design, the cooking structure includes a first spiral heat exchange tube fixedly connected inside an oil storage tank, which is used to perform heat conversion on the heat-conducting oil inside the oil storage tank. A vent pipe is provided at the top of the boiling tank, one end of which extends into the oil storage tank and connects to one end of the first spiral heat exchange tube. An outlet pipe is fixed to the other end of the first spiral heat exchange tube, and the other end of the outlet pipe extends to the outside of the oil storage tank and to the next process step. A circulation pump is provided on one side of the oil storage tank. One end of the barrel is equipped with a first oil outlet pipe, and the other end of the first oil outlet pipe is connected to the liquid inlet of the circulating pump. The steam in the boiling water barrel enters the first spiral heat conversion tube through the air guide pipe. The first spiral heat conversion tube heats the heat transfer oil in the oil storage barrel for heat conversion. The air outlet pipe discharges the steam after heat conversion to the next process for reuse. When the heat transfer oil reaches a certain temperature, the valve on the first oil outlet pipe is opened, and the circulating pump pumps the heat transfer oil into the second spiral heat conversion tube and the serpentine heat conversion tube for subsequent steaming of the wood blocks.

[0016] In one possible design, the cooking structure further includes a second spiral heat exchange tube embedded in the cooking tank. A three-way valve is fitted over the outlet of the circulating pump. A second oil outlet pipe and a third oil outlet pipe are fitted over the outlet of the three-way valve. One end of the second oil outlet pipe is connected to the inlet of the second spiral heat exchange tube. A connecting pipe is fixed to the outlet of the second spiral heat exchange tube, with one end extending to one side of the cooking tank. Multiple frames are fixedly connected inside the cooking tank, arranged vertically. A serpentine heat exchange tube is fixed within each frame. The inlet and outlet of two adjacent serpentine heat exchange tubes are connected via a guide pipe. One end of the third oil outlet pipe is connected to the inlet of the lowest serpentine heat exchange tube. The circulating pump pumps heat transfer oil into the second spiral heat exchange tube and the serpentine heat exchange tube respectively. The cooperation between the second spiral heat exchange tube and the serpentine heat exchange tube allows for multi-directional cooking of the wood blocks inside the cooking tank, improving the cooking efficiency of the wood blocks.

[0017] In one possible design, a reflux pipe is provided on one side of the cooking tank. The end of the connecting pipe away from the second spiral heat conversion tube is connected to the reflux pipe. The liquid outlet of the uppermost serpentine heat conversion tube is connected to the reflux pipe through a pipe. One end of the reflux pipe is fixedly connected to the end of the oil storage tank away from the first oil outlet pipe. A first temperature detector is fitted on the outer wall of the second and third oil outlet pipes, and a second temperature detector is fitted on the outer wall of the reflux pipe. The heat transfer oil in the second spiral and serpentine heat conversion tubes can be reinjected into the oil storage tank through the reflux pipe, completing the circulation of the heat transfer oil and facilitating the reheating of the heat transfer oil for the continuous cooking of the wood blocks.

[0018] In one possible design, a gas collecting pipe is fixedly welded to the top of the oil storage tank; during the heating process of the heat transfer oil in the oil storage tank, the air in the heat transfer oil floats to the gas collecting pipe, thereby automatically collecting the air in the heat transfer oil.

[0019] In one possible design, the air guide pipe, air outlet pipe, first oil outlet pipe, second oil outlet pipe, third oil outlet pipe, connecting pipe, and return pipe are all made of thermal insulation material. The cooking tank consists of an outer wall, a partition, and an inner wall, arranged sequentially from the outside to the inside. The second spiral heat conversion tube is located inside the cavity, and its inner wall is made of thermally conductive material, while its outer wall is made of thermal insulation material. The thermal insulation material can be glass wool, composite silicate, rock wool pipe, or rigid polyurethane foam, and is not limited here.

[0020] In one possible design, two connecting frames are bolted to the inside of the oil storage tank. A common rotating rod rotatably passes through both connecting frames. Turbines are fixed at both ends of the rotating rod. The two turbines are respectively connected to the return pipe and the first oil outlet pipe. Multiple stirring blades are fixed to the outer wall of the rotating rod. A transparent glass is provided on one side of the gas collecting pipe. After the heat transfer oil completes its heat conversion in the second spiral heat conversion pipe and the serpentine heat conversion pipe, it flows back to the oil storage tank through the return pipe to reheat the heat transfer oil. The heated heat transfer oil can then be circulated and reused. When the heat transfer oil enters the oil storage tank through the return pipe, it drives one of the turbines to rotate. When the heated heat transfer oil in the oil storage tank flows out to the outside with the cooperation of the first oil outlet pipe and the circulation pump, the heat transfer oil in the oil storage tank flows from one side towards the first oil outlet pipe, which drives the other turbine to rotate. The two turbines work together to drive the rotating rod and stirring blades to rotate, which can stir the heat transfer oil and make the heat transfer oil evenly heated in the oil storage tank.

[0021] This application discloses a method of using a steam-heated thermal oil furnace, comprising the following steps:

[0022] S1. Wood scraps and sawdust from the wood processing plant are fed into the storage bin. The motor drives the threaded rod to rotate, which in turn drives the rotating shaft to rotate. The rotating shaft drives the worm gear to rotate slowly through the gearbox. In turn, the worm gear drives the worm wheel and the high-temperature baffle to rotate, thereby opening the feed inlet. The wood scraps and sawdust in the storage bin enter the combustion chamber as fuel to boil the water in the boiling tank. After a certain amount of fuel is added, the rotating shaft rotates in the reverse direction, and the high-temperature baffle closes the feed inlet again.

[0023] S2. When the rotating shaft rotates, the meshing of the first bevel gear and the second bevel gear drives the reciprocating screw to rotate. The reciprocating screw drives the lifting plate to move up and down reciprocally. The vertical plate drives the vertical plate and the inclined plate to move up and down reciprocally. The vertical plate and the inclined plate can break up the wood fragments and wood chips accumulated at the feed inlet, so as to prevent the wood fragments and wood chips from accumulating and being unable to enter the combustion chamber. At the same time, the threaded rod drives the push plate to move to one side through the L-shaped rod, which can push the wood fragments and wood chips in the storage box towards the feed inlet, so that the wood fragments and wood chips can enter the combustion chamber later.

[0024] S3. Open the cover and place the wood blocks to be processed on the frame and the serpentine heat conversion tube. After the water in the boiling tank boils, open the valve on the air guide pipe. Steam enters the first spiral heat conversion tube through the air guide pipe. The first spiral heat conversion tube heats the heat transfer oil in the oil storage tank for heat conversion. The air outlet pipe discharges the steam after heat conversion to the next process for reuse. When the heat transfer oil reaches a certain temperature, open the valve on the first oil outlet pipe. The circulation pump pumps the heat transfer oil into the second spiral heat conversion tube and the serpentine heat conversion tube respectively. The cooperation between the second spiral heat conversion tube and the serpentine heat conversion tube can cook the wood blocks in the cooking tank from multiple directions, which can improve the cooking efficiency of the wood blocks.

[0025] S4. After the heat transfer oil completes its heat conversion in the second spiral heat conversion tube and the serpentine heat conversion tube, it flows back to the oil storage tank through the return pipe, where it is heated again. The heated heat transfer oil can then be circulated and reused. When the heat transfer oil enters the oil storage tank through the return pipe, it drives one of the turbines to rotate. When the heated heat transfer oil in the oil storage tank flows out to the outside with the cooperation of the first oil outlet pipe and the circulation pump, the heat transfer oil in the oil storage tank flows from one side toward the first oil outlet pipe, which in turn drives the other turbine to rotate. The two turbines work together to drive the rotating rod and the stirring blade to rotate, which can stir the heat transfer oil and make the heat transfer oil evenly heated in the oil storage tank.

[0026] S5. When the rotating rod and stirring blades stir the heat transfer oil, the air in the heat transfer oil floats upward and enters the gas collecting pipe, which can automatically collect the air in the heat transfer oil. The amount of air collected can be observed through the transparent glass, which makes it easy to extract the air from the gas collecting pipe later.

[0027] In this invention, a high-temperature resistant baffle for sealing the feed inlet is fixed to the outer wall of the rotating shaft. A worm gear is rotatably connected to one side of the inner wall of the combustion chamber. A worm wheel is fixed to the outer wall of the worm wheel. A rotating shaft fixedly connected to the worm gear rotatably passes through the storage box. An L-shaped rod is threaded onto the outer wall of the threaded rod. A push plate is fixed to one end of the L-shaped rod. The rotation of the rotating shaft can drive the worm gear and worm wheel to rotate, releasing the high-temperature resistant baffle from sealing the feed inlet. At this time, wood chips and sawdust in the storage box enter the combustion chamber as fuel. The push plate moves towards the feed inlet, pushing the wood chips and sawdust towards the feed inlet, facilitating the later entry of wood chips and sawdust into the combustion chamber. Using waste from the wood factory as fuel reduces the cost of heating the heat transfer oil.

[0028] In this invention, a first bevel gear is fixed to the outer wall of the rotating shaft, a second bevel gear is fixed to the top of the reciprocating screw, a lifting plate is threaded onto the outer wall of the reciprocating screw, multiple vertical plates are fixed to the bottom of the lifting plate, and multiple inclined plates are fixedly anchored to one side of the vertical plate. When the rotating shaft rotates, the reciprocating screw is driven to rotate through the meshing of the first and second bevel gears. The reciprocating screw drives the lifting plate to move up and down reciprocally, and the vertical plates drive the vertical plates and inclined plates to move up and down reciprocally. The vertical plates and inclined plates can disperse the wood fragments and sawdust accumulated at the feed inlet, preventing the wood fragments and sawdust from accumulating and preventing them from entering the combustion chamber.

[0029] In this invention, a second spiral heat conversion tube is embedded inside the cooking tank. One end of the second oil outlet tube is connected to the liquid inlet of the second oil outlet tube. Multiple frames are fixedly connected inside the cooking tank, and the multiple frames are arranged vertically. A serpentine heat conversion tube is fixed inside each frame. The liquid inlet and liquid outlet between two adjacent serpentine heat conversion tubes are connected through a liquid guide tube. One end of the third oil outlet tube is connected to the liquid inlet of the lowest serpentine heat conversion tube. A circulating pump pumps heat transfer oil into the second spiral heat conversion tube and the serpentine heat conversion tube respectively. Through the cooperation of the second spiral heat conversion tube and the serpentine heat conversion tube, the wood blocks inside the cooking tank can be cooked from multiple directions, which can improve the cooking efficiency of the wood blocks.

[0030] In this invention, a gas collecting pipe is fixedly welded to the top of the oil storage tank, and turbines are fixed to both ends of the rotating rod. The two turbines are respectively connected to the return pipe and the first oil outlet pipe. Multiple stirring blades are fixed to the outer wall of the rotating rod. When the heat transfer oil enters the oil storage tank through the return pipe, the heat transfer oil drives one of the turbines to rotate. The heat transfer oil flows from one side towards the first oil outlet pipe, which drives the other turbine to rotate. The two turbines work together to drive the rotating rod and stirring blades to rotate, which can stir the heat transfer oil and make the heat transfer oil evenly heated in the oil storage tank. When the rotating rod and stirring blades stir the heat transfer oil, the air in the heat transfer oil floats upward and enters the gas collecting pipe, which can automatically collect the air in the heat transfer oil.

[0031] In this invention, wood chips and sawdust from a timber factory can be fed into a combustion chamber as fuel for heating heat transfer oil, reducing the cost of heating heat transfer oil. In addition, the fuel can be automatically added, reducing the risk of manual fuel addition. Furthermore, the combination of the second spiral heat exchange tube and multiple serpentine heat exchange tubes allows for multi-directional steaming of wood blocks, improving the steaming efficiency of wood blocks. Moreover, the gas collecting tube can collect air in the heat transfer oil, preventing air from entering the heat transfer oil circulation system. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural schematic diagram of a steam-heated thermal oil furnace provided in Embodiment 1 of the present invention;

[0033] Figure 2 This is a three-dimensional exploded structural diagram of the combustion chamber, water boiling tank, and material storage tank of a steam-heated thermal oil furnace provided in Embodiment 1 of the present invention.

[0034] Figure 3 This is a three-dimensional cross-sectional view of the storage tank of a steam-heated thermal oil furnace provided in Embodiment 1 of the present invention.

[0035] Figure 4 This is a three-dimensional exploded structural diagram of the rotating shaft, gearbox, and worm gear of a steam-heated thermal oil furnace provided in Embodiment 1 of the present invention;

[0036] Figure 5 This is a three-dimensional cross-sectional view of the oil storage tank of a steam-heated thermal oil furnace provided in Embodiment 1 of the present invention.

[0037] Figure 6 This is a three-dimensional exploded structural diagram of the cooking tank, base, and cover plate of a steam-heated thermal oil furnace provided in Embodiment 1 of the present invention.

[0038] Figure 7 This is a three-dimensional exploded cross-sectional view of the cooking tank of a steam-heated thermal oil furnace provided in Embodiment 1 of the present invention.

[0039] Figure 8 This is a side cross-sectional view of the oil storage tank of a steam-heated thermal oil furnace provided in Embodiment 2 of the present invention.

[0040] In the diagram: 1. Combustion chamber; 2. Water tank; 3. Feed inlet; 4. Rotating shaft; 5. High-temperature resistant baffle; 6. Storage box; 7. Rotating shaft; 8. Gearbox; 9. Worm gear; 10. Worm wheel; 11. First bevel gear; 12. Reciprocating screw; 13. Second bevel gear; 14. Lifting plate; 15. Vertical plate; 16. Inclined plate; 17. Push plate; 18. Threaded rod; 19. L-shaped rod; 20. Protective cover; 21. Base; 22. Oil storage tank; 23. First spiral heat conversion tube; 24. Air guide pipe; 5. First oil outlet pipe; 26. Circulation pump; 27. Cooking tank; 28. Cover plate; 29. ​​Second oil outlet pipe; 30. Second spiral heat exchange tube; 31. Frame; 32. Serpentine heat exchange tube; 33. Third oil outlet pipe; 34. Connecting pipe; 35. Return pipe; 36. Three-way valve; 37. First temperature detector; 38. Second temperature detector; 39. Gas outlet pipe; 40. Gas collection pipe; 41. Transparent glass; 42. Connecting frame; 43. Rotating rod; 44. Turbine; 45. Stirring blade. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0042] Example 1

[0043] Reference Figures 1-7 A steam-heated thermal oil furnace, which is used in the field of thermal oil furnaces, includes a combustion chamber 1. A water boiling tank 2 for boiling water is fixed through the top of the combustion chamber 1 by bolts. Two bases 21 are provided on one side of the combustion chamber 1. An oil storage tank 22 and a cooking tank 27 are respectively fixed to the top of the two bases 21 by bolts. A cover plate 28 is hinged to one side of the cooking tank 27.

[0044] Reference Figures 2-4The thermal oil heater also includes a packing structure located on one side of the combustion chamber 1, used to feed wood chips and sawdust from the factory into the combustion chamber 1 as fuel. The packing structure includes a feed inlet 3 located on one side of the combustion chamber 1. A storage box 6 is bolted to one side of the combustion chamber 1. The storage box 6 has a hole on one side that matches the feed inlet 3. A rotating shaft 4 is rotatably connected to the inner wall of one side of the combustion chamber 1 via a base. A high-temperature resistant baffle 5 for sealing the feed inlet 3 is fixed to the outer wall of the rotating shaft 4. A worm gear 9 is rotatably connected to the inner wall of one side of the combustion chamber 1. A worm wheel 10 that matches the worm gear 9 is fixed to the outer wall of the rotating shaft 4. A rotating shaft 7 rotatably passes through the storage box 6. A gearbox 8 is bolted to one side of the combustion chamber 1, and one end of the rotating shaft 7 is fixed to the input shaft of the gearbox 8 via a coupling. The output shaft of the gearbox 8 is fixedly connected to one end of the worm gear 9 via a coupling. A threaded rod 18 is fixed to the end of the rotating shaft 7 away from the combustion chamber 1. An L-shaped rod 19 is threaded on the outer wall of the threaded rod 18. One end of the L-shaped rod 19 extends into the storage box 6 and is fixed with a push plate 17, which is slidably connected in the storage box 6. The rotation of the rotating shaft 7 can drive the worm gear 9 to rotate. The cooperation between the worm gear 9 and the worm wheel 10 can release the high-temperature baffle 5 from the inlet 3. At this time, the wood chips and sawdust in the storage box 6 enter the combustion chamber 1 to be used as fuel. The push plate 17 moves towards the inlet 3 under the action of the threaded rod 18, pushing the wood chips and sawdust in the storage box 6 towards the inlet 3, so that the wood chips and sawdust can enter the combustion chamber 1 later.

[0045] Reference Figures 2-4The packing structure also includes a first bevel gear 11 fixedly sleeved on the outer wall of the rotating shaft 7. A reciprocating screw 12 is rotatably connected to one side of the inner wall of the storage box 6 via a base. A second bevel gear 13, meshing with the first bevel gear 11, is fixed to the top of the reciprocating screw 12. A lifting plate 14 is threadedly sleeved on the outer wall of the reciprocating screw 12, and the lifting plate 14 is slidably connected to one side of the inner wall of the storage box 6. Multiple vertical plates 15 are fixed to the bottom of the lifting plate 14 by bolts. Multiple inclined plates 16 are fixedly anchored to the side of the vertical plates 15 away from the combustion chamber 1. A protective cover 20 is fixed to one side of the inner wall of the storage box 6, and both the first bevel gear 11 and the second bevel gear 13 are located inside the protective cover 20. The protective cover 20 allows the first bevel gear to be... The wheel 11 and the second bevel gear 13 are protected. The top and bottom of the lifting plate 14 are provided with corrugated pipes, and the two ends of the two corrugated pipes are fixedly connected to the base. The two corrugated pipes are sleeved on the outer wall of the reciprocating screw 12 to protect the reciprocating screw 12. When the rotating shaft 7 rotates, the reciprocating screw 12 is driven to rotate through the meshing of the first bevel gear 11 and the second bevel gear 13. The reciprocating screw 12 drives the lifting plate 14 to move up and down reciprocally. The vertical plate 15 drives the vertical plate 15 and the inclined plate 16 to move up and down reciprocally. The vertical plate 15 and the inclined plate 16 can break up the wood fragments and wood chips accumulated at the feed inlet 3, so as to prevent the wood fragments and wood chips from accumulating and thus preventing them from entering the combustion chamber 1.

[0046] Reference Figure 5 The thermal oil furnace also includes a cooking structure disposed within the oil storage tank 22 and the first spiral heat conversion tube 23, used to heat the thermal oil and cook the wood. The cooking structure includes a first spiral heat conversion tube 23 fixedly connected within the oil storage tank 22, which performs heat conversion on the thermal oil within the oil storage tank 22. A vent pipe 24 is located at the top of the boiling water tank 2. One end of the vent pipe 24 extends into the oil storage tank 22 and connects to one end of the first spiral heat conversion tube 23. An outlet pipe 39 is fixed to the other end of the first spiral heat conversion tube 23, and the other end of the outlet pipe 39 extends to the outside of the oil storage tank 22 and to the next process. A circulation pump 26 is provided on one side of the tank 22, and a first oil outlet pipe 25 is provided at one end of the oil storage tank 22. The other end of the first oil outlet pipe 25 is connected to the liquid inlet of the circulation pump 26. The steam in the water boiling tank 2 enters the first spiral heat conversion pipe 23 through the air guide pipe 24. The first spiral heat conversion pipe 23 heats the heat transfer oil in the oil storage tank 22 for heat conversion. The air outlet pipe 39 discharges the steam after heat conversion to the next process for reuse. When the heat transfer oil reaches a certain temperature, the valve on the first oil outlet pipe 25 is opened, and the circulation pump 26 pumps the heat transfer oil into the second spiral heat conversion pipe 30 and the serpentine heat conversion pipe 32 for subsequent steaming of the wood blocks.

[0047] Reference Figure 5A gas collecting pipe 40 is fixedly welded to the top of the oil storage tank 22. During the heating process of the heat transfer oil in the oil storage tank 22, the air in the heat transfer oil floats to the gas collecting pipe 40, and can automatically collect the air in the heat transfer oil.

[0048] Reference Figures 5-7 The cooking structure also includes a second spiral heat exchange tube 30 embedded in the cooking tank 27. A three-way valve 36 is fitted at the outlet of the circulating pump 26. A second oil outlet pipe 29 and a third oil outlet pipe 33 are fitted at the outlet of the three-way valve 36. One end of the second oil outlet pipe 29 is connected to the inlet of the second spiral heat exchange tube 30. A connecting pipe 34 is fixed at the outlet of the second spiral heat exchange tube 30, and one end of the connecting pipe 34 extends to one side of the cooking tank 27. Multiple frames 31 are fixedly connected inside the cooking tank 27, and the multiple frames 31 are arranged vertically. The frame 31 is equipped with a serpentine heat exchange tube 32. The inlet and outlet of two adjacent serpentine heat exchange tubes 32 are connected by a liquid guide pipe. One end of the third oil outlet pipe 33 is connected to the inlet of the lowest serpentine heat exchange tube 32. The circulating pump 26 pumps the heat transfer oil into the second spiral heat exchange tube 30 and the serpentine heat exchange tube 32 respectively. Through the cooperation of the second spiral heat exchange tube 30 and the serpentine heat exchange tube 32, the wood blocks in the cooking tank 27 can be cooked in multiple directions, which can improve the cooking efficiency of the wood blocks.

[0049] Reference Figure 1 , Figure 5 , Figure 6 and Figure 7 A return pipe 35 is provided on one side of the cooking tank 27. The end of the connecting pipe 34 away from the second spiral heat conversion tube 30 is connected to the return pipe 35. The liquid outlet of the uppermost serpentine heat conversion tube 32 is connected to the return pipe 35 through a pipe. One end of the return pipe 35 is fixedly connected to the end of the oil storage tank 22 away from the first oil outlet pipe 25. The outer walls of the second oil outlet pipe 29 and the third oil outlet pipe 33 are fitted with a first temperature detector 37, and the outer wall of the return pipe 35 is fitted with a second temperature detector 38. The heat transfer oil in the second spiral heat conversion tube 30 and the serpentine heat conversion tube 32 can be reinjected into the oil storage tank 22 through the return pipe 35 to complete the circulation of the heat transfer oil, which facilitates the reheating of the heat transfer oil and the cyclical cooking of the wood blocks.

[0050] Reference Figure 1 , Figure 5 , Figure 6 and Figure 7The air duct 24, air outlet 39, first oil outlet 25, second oil outlet 29, third oil outlet 33, connecting pipe 34, and return pipe 35 are all made of insulation material. The cooking tank 27 consists of an outer wall, a partition, and an inner wall, which are arranged sequentially from the outside to the inside. The second spiral heat conversion tube 30 is located in the cavity, and its inner wall is made of heat-conducting material, while its outer wall is made of insulation material. The insulation material can be glass wool, composite silicate, rock wool pipe, or rigid polyurethane foam, and is not limited here.

[0051] Example 2

[0052] refer to Figure 8 Improvements based on Example 1: Two connecting frames 42 are bolted inside the oil storage tank 22. A single rotating rod 43 rotatably passes through both connecting frames 42. Turbines 44 are fixed to both ends of the rotating rod 43. The two turbines 44 are respectively connected to the return pipe 35 and the first oil outlet pipe 25. Multiple stirring blades 45 are fixed to the outer wall of the rotating rod 43. A transparent glass 41 is provided on one side of the gas collecting pipe 40. After the heat transfer oil completes its heat conversion in the second spiral heat conversion pipe 30 and the serpentine heat conversion pipe 32, it flows back to the oil storage tank 22 through the return pipe 35, where it is further heat-converted. The hot oil is heated, and the heated heat transfer oil can be circulated and reused. When the heat transfer oil enters the oil storage tank 22 through the return pipe 35, the heat transfer oil drives one of the turbines 44 to rotate. When the heated heat transfer oil in the oil storage tank 22 flows to the outside with the cooperation of the first oil outlet pipe 25 and the circulation pump 26, the heat transfer oil in the oil storage tank 22 flows from one side to the first oil outlet pipe 25, which can drive the other turbine 44 to rotate. The two turbines 44 cooperate to drive the rotating rod 43 and the stirring blade 45 to rotate, which can stir the heat transfer oil and make the heat transfer oil evenly heated in the oil storage tank 22.

[0053] A method of using a steam-heated thermal oil heater includes the following steps:

[0054] S1. Wood scraps and sawdust from the wood processing plant are put into the storage box 6. The screw rod 18 is driven to rotate by the motor (not shown in the figure). The screw rod 18 drives the rotating shaft 7 to rotate. The rotating shaft 7 drives the worm gear 9 to rotate slowly through the gearbox 8. In turn, the worm gear 9 drives the worm wheel 10 and the high-temperature baffle 5 to rotate, thereby opening the feed port 3. The wood scraps and sawdust in the storage box 6 enter the combustion chamber 1 as fuel to boil the water in the boiling water tank 2. After a certain amount of fuel is added, the rotating shaft 7 rotates in the opposite direction, and the high-temperature baffle 5 closes the feed port 3 again.

[0055] S2. When the rotating shaft 7 rotates, the reciprocating screw 12 is driven to rotate through the meshing of the first bevel gear 11 and the second bevel gear 13. The reciprocating screw 12 drives the lifting plate 14 to move up and down reciprocally. The vertical plate 15 drives the vertical plate 15 and the inclined plate 16 to move up and down reciprocally. The vertical plate 15 and the inclined plate 16 can break up the wood fragments and wood chips piled up at the feed inlet 3, so as to prevent the wood fragments and wood chips from accumulating and being unable to enter the combustion chamber 1. At the same time, the threaded rod 18 drives the push plate 17 to move to one side through the L-shaped rod 19, which can push the wood fragments and wood chips in the storage box 6 towards the feed inlet 3, so that the wood fragments and wood chips can enter the combustion chamber 1 later.

[0056] S3. Open the cover plate 28, place the wood blocks to be processed on the frame 31 and the serpentine heat conversion tube 32, and after the water in the boiling water tank 2 boils, open the valve on the air guide pipe 24. Steam enters the first spiral heat conversion tube 23 through the air guide pipe 24. The first spiral heat conversion tube 23 heats the heat transfer oil in the oil storage tank 22 for heat conversion. The air outlet pipe 39 discharges the steam after heat conversion to the next process for reuse. When the heat transfer oil reaches a certain temperature, open the valve on the first oil outlet pipe 25. The circulation pump 26 pumps the heat transfer oil into the second spiral heat conversion tube 30 and the serpentine heat conversion tube 32 respectively. Through the cooperation of the second spiral heat conversion tube 30 and the serpentine heat conversion tube 32, the wood blocks in the cooking tank 27 can be cooked in multiple directions, which can improve the cooking efficiency of the wood blocks.

[0057] S4. After the heat transfer oil completes its heat conversion in the second spiral heat conversion tube 30 and the serpentine heat conversion tube 32, it flows back to the oil storage tank 22 through the return pipe 35, where it is heated again. The heated heat transfer oil can then be circulated and reused. When the heat transfer oil enters the oil storage tank 22 through the return pipe 35, it drives one of the turbines 44 to rotate. When the heated heat transfer oil in the oil storage tank 22 flows out to the outside with the cooperation of the first oil outlet pipe 25 and the circulating pump 26, the heat transfer oil in the oil storage tank 22 flows from one side toward the first oil outlet pipe 25, which in turn drives the other turbine 44 to rotate. The two turbines 44 work together to drive the rotating rod 43 and the stirring blade 45 to rotate, which can stir the heat transfer oil and make the heat transfer oil evenly heated in the oil storage tank 22.

[0058] S5. When the rotating rod 43 and stirring blade 45 stir the heat transfer oil, the air in the heat transfer oil floats upward and enters the gas collecting pipe 40, which can automatically collect the air in the heat transfer oil and observe the amount of air collected through the transparent glass 41, so that the air can be extracted from the gas collecting pipe 40 later.

[0059] As is well known to those skilled in the art, the working principles and wiring methods of the first temperature detector 37, the second temperature detector 38, and the circulating pump 26 are commonplace and are all conventional methods or common knowledge. They will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0060] 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 steam-heated thermal oil furnace, comprising a combustion chamber (1), characterized in that, The top of the combustion chamber (1) is fixed with a water-boiling bucket (2) for boiling water. Two bases (21) are provided on one side of the combustion chamber (1). An oil storage tank (22) and a cooking tank (27) are respectively fixed with bolts on the top of the two bases (21). A cover plate (28) is hinged to one side of the cooking tank (27). The packing structure is set on one side of the combustion chamber (1) and is used to feed wood chips and sawdust from the factory into the combustion chamber (1) as fuel. The cooking structure is set inside the oil storage tank (22) and the first spiral heat conversion tube (23) for heating the heat transfer oil and cooking the wood. The filling structure includes a feed inlet (3) set on one side of the combustion chamber (1). A storage box (6) is fixed to one side of the combustion chamber (1) by bolts. A hole matching the feed inlet (3) is provided on one side of the storage box (6). A rotating shaft (4) is rotatably connected to one side of the inner wall of the combustion chamber (1) through a base. A high-temperature resistant baffle (5) for sealing the feed inlet (3) is fixed to the outer wall of the rotating shaft (4). A worm gear (9) is rotatably connected to one side of the inner wall of the combustion chamber (1). The outer wall of the rotating shaft (4) is fixed with a worm wheel (10) that cooperates with the worm (9). The rotating shaft (7) rotates through the storage box (6). The combustion chamber (1) is fixed with a gearbox (8) by bolts on one side. One end of the rotating shaft (7) is fixedly connected to the input shaft of the gearbox (8) by a coupling. The output shaft of the gearbox (8) is fixedly connected to one end of the worm (9) by a coupling. The end of the rotating shaft (7) away from the combustion chamber (1) is fixed with a threaded rod (18). The outer wall of the threaded rod (18) is threaded with an L-shaped rod (19). One end of the L-shaped rod (19) extends to the storage box. (6) A push plate (17) is fixed inside the storage box (6), and the push plate (17) is slidably connected inside the storage box (6). The filling structure also includes a first bevel gear (11) fixedly sleeved on the outer wall of the rotating shaft (7). A reciprocating screw (12) is rotatably connected to one side of the inner wall of the storage box (6) through a base. A second bevel gear (13) that meshes with the first bevel gear (11) is fixed at the top of the reciprocating screw (12). A lifting plate (14) is threadedly sleeved on the outer wall of the reciprocating screw (12), and the lifting plate (14) is slidably connected to one side of the inner wall of the storage box (6). Multiple bolts are fixed to the bottom of the lifting plate (14). The vertical plate (15) has multiple inclined plates (16) fixedly anchored on the side away from the combustion chamber (1). The inner wall of the storage box (6) is fixed with a protective cover (20), and the first bevel gear (11) and the second bevel gear (13) are both located inside the protective cover (20). The protective cover (20) can protect the first bevel gear (11) and the second bevel gear (13). The top and bottom of the lifting plate (14) are provided with corrugated pipes, and the two ends of the two corrugated pipes are fixedly connected to the base respectively. The two corrugated pipes are sleeved on the outer wall of the reciprocating screw (12) to protect the reciprocating screw (12).

2. The steam-heated thermal oil furnace according to claim 1, characterized in that, The cooking structure includes a first spiral heat conversion tube (23) fixedly connected inside the oil storage tank (22), and the first spiral heat conversion tube (23) is used to perform heat conversion on the heat transfer oil inside the oil storage tank (22). The top of the boiling water tank (2) is provided with a gas guide tube (24). One end of the gas guide tube (24) extends into the oil storage tank (22) and is connected to one end of the first spiral heat conversion tube (23). The other end of the first spiral heat conversion tube (23) is fixed with a gas outlet tube (39), and the other end of the gas outlet tube (39) extends to the outside of the oil storage tank (22) and extends to the next process. A circulation pump (26) is provided on one side of the oil storage tank (22). One end of the oil storage tank (22) is provided with a first oil outlet tube (25), and the other end of the first oil outlet tube (25) is connected to the liquid inlet of the circulation pump (26).

3. The steam-heated thermal oil furnace according to claim 2, characterized in that, The cooking structure also includes a second spiral heat exchange tube (30) embedded in the cooking tank (27). The outlet of the circulating pump (26) is fitted with a three-way valve (36). The outlet of the three-way valve (36) is fitted with a second oil outlet pipe (29) and a third oil outlet pipe (33). One end of the second oil outlet pipe (29) is connected to the inlet of the second spiral heat exchange tube (30). The outlet of the second spiral heat exchange tube (30) is fixed with a connecting pipe (34) and connected to... One end of the connecting pipe (34) extends to one side of the cooking tank (27). Multiple frames (31) are fixedly connected inside the cooking tank (27), and the multiple frames (31) are arranged vertically. A serpentine heat conversion tube (32) is fixed inside the frame (31). The liquid inlet and liquid outlet between two adjacent serpentine heat conversion tubes (32) are connected through a liquid guide pipe. One end of the third oil outlet pipe (33) is connected to the liquid inlet of the lowest serpentine heat conversion tube (32).

4. A steam-heated thermal oil furnace according to claim 3, characterized in that, A reflux pipe (35) is provided on one side of the cooking tank (27). The end of the connecting pipe (34) away from the second spiral heat conversion pipe (30) is connected to the reflux pipe (35). The liquid outlet of the uppermost serpentine heat conversion pipe (32) is connected to the reflux pipe (35) through a pipe. One end of the reflux pipe (35) is fixedly connected to the end of the oil storage tank (22) away from the first oil outlet pipe (25). The outer walls of the second oil outlet pipe (29) and the third oil outlet pipe (33) are fitted with a first temperature detector (37). The outer wall of the reflux pipe (35) is fitted with a second temperature detector (38).

5. A steam-heated thermal oil furnace according to claim 4, characterized in that, A gas gathering pipe (40) is fixedly welded to the top of the oil storage tank (22).

6. A steam-heated thermal oil furnace according to claim 5, characterized in that, The air guide pipe (24), air outlet pipe (39), first oil outlet pipe (25), second oil outlet pipe (29), third oil outlet pipe (33), connecting pipe (34) and return pipe (35) are all made of heat-insulating material. The cooking tank (27) is composed of an outer wall, a partition and an inner wall, and the outer wall, partition and inner wall are arranged in sequence from the outside to the inside. The second spiral heat conversion tube (30) is located in the cavity, and the inner wall is made of heat-conducting material and the outer wall is made of heat-insulating material.

7. A steam-heated thermal oil furnace according to claim 6, characterized in that, The oil storage tank (22) has two connecting frames (42) fixed inside by bolts. The same rotating rod (43) is rotatably passed through the two connecting frames (42). Both ends of the rotating rod (43) are fixed with turbines (44). The two turbines (44) are respectively connected to the return pipe (35) and the first oil outlet pipe (25). Multiple stirring blades (45) are fixed on the outer wall of the rotating rod (43). A transparent glass (41) is provided on one side of the gas gathering pipe (40).

8. The method of using a steam-heated thermal oil furnace according to claim 7, characterized in that, Includes the following steps: S1. Drive the threaded rod (18) to rotate by the motor. The threaded rod (18) drives the rotating shaft (7) and worm gear (9) to rotate slowly. Open the feed port (3). Wood fragments and wood chips in the storage box (6) enter the combustion chamber (1) as combustion raw materials to boil the water in the boiling bucket (2). S2. The reciprocating screw (12) is driven to rotate by the meshing of the first bevel gear (11) and the second bevel gear (13). The reciprocating screw (12) drives the lifting plate (14), the vertical plate (15) and the inclined plate (16) to move up and down, which can break up the wood fragments and wood chips piled up at the feed inlet (3). At the same time, the threaded rod (18) drives the push plate (17) to move to one side, pushing the wood fragments and wood chips towards the feed inlet (3). S3. The steam in the boiling water tank (2) enters the first spiral heat conversion tube (23) through the air guide pipe (24) to heat the heat transfer oil. The circulating pump (26) pumps the heat transfer oil into the second spiral heat conversion tube (30) and the serpentine heat conversion tube (32) respectively, which can steam the wood blocks in the cooking tank (27) from multiple directions. S4. The heat transfer oil flows back to the oil storage tank (22) through the return pipe (35). The heat transfer oil can be recycled. When the heat transfer oil flows back to the oil storage tank (22), it drives one of the turbines (44) to rotate. When the heat transfer oil flows from one side to the first oil outlet pipe (25), it can drive the other turbine (44) to rotate. The two turbines (44) work together to drive the rotating rod (43) and the stirring blade (45) to rotate, which can stir the heat transfer oil. S5. When the stirring blade (45) stirs the heat transfer oil, the air in the heat transfer oil floats upward and enters the gas collecting pipe (40), which can automatically collect the air in the heat transfer oil.

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