Copper sheath constant temperature heating device

Abstract

The utility model discloses a copper bush constant temperature heating device, including heating inner bag, the outer wall welding of heating inner bag has the protective housing, and is equipped with the cavity between heating inner bag and protective housing, the inner wall mounting of cavity has electric heating rod, and the outer wall bonding of protective housing has heat preservation shell, the bottom of heat preservation shell places the oil spill tray, the top one end hinged of heating inner bag has the protective top, and the top outer wall welding of protective top has the handle, the one side inner wall top of heating inner bag is penetrated and is connected with the oil spill pipe, and the one side outer wall of heat preservation shell is fixed with two guide rails along parallel direction, the utility model discloses only need to place the copper bush on the leak net board top, thereby the device can adapt to the copper bush heating demand of different size, shape and specification, improve the versatility of equipment, and can conveniently adjust the heating parameter to meet the temperature requirement under different application scene, enhance the flexibility of equipment.

Description

Technical Field

[0001] This utility model relates to the field of copper sleeve heating technology, and in particular to a copper sleeve constant temperature heating device. Background Technology

[0002] Copper bushings are widely used as critical mechanical components in many industrial sectors. However, different applications have specific temperature requirements for copper bushings. For example, in some precision mechanical assembly processes, the copper bushing needs to be heated to a specific temperature to achieve optimal assembly results; in some continuously operating equipment, maintaining the copper bushing at a constant temperature ensures stable operation and a long service life. Traditional copper bushing heating methods have the following problems:

[0003] 1. Inaccurate temperature control: Current heating methods often fail to achieve precise temperature control of the copper bushing, resulting in large temperature fluctuations, which may lead to decreased assembly accuracy or unstable equipment operation.

[0004] 2. Energy waste: Some traditional heating methods are inefficient, resulting in a large amount of energy waste. For example, when using resistance wire heating, heat is easily lost and difficult to concentrate on the copper sleeve.

[0005] 3. Uneven heating: Some heating devices cannot ensure that all parts of the copper bushing are heated evenly, which can cause deformation of the copper bushing and affect its performance and service life.

[0006] 4. Lack of flexibility: Existing heating equipment is usually designed for copper bushings of specific specifications, lacking versatility and flexibility, and is difficult to adapt to the heating needs of copper bushings of different sizes and shapes. Utility Model Content

[0007] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a copper sleeve constant temperature heating device.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A copper-clad constant-temperature heating device includes a heating inner liner, a protective outer shell welded to the outer wall of the heating inner liner, and a cavity between the heating inner liner and the protective outer shell. An electric heating rod is installed on the inner wall of the cavity, and an insulation shell is bonded to the outer wall of the protective outer shell. An oil overflow tray is placed at the bottom of the insulation shell. A protective top cover is hinged to one end of the top of the heating inner liner, and a handle is welded to the top outer wall of the protective top cover. An oil overflow pipe is penetrating through the top of one side of the inner wall of the heating inner liner, and two guide rails are fixed in a parallel direction on one side of the outer wall of the insulation shell. A guide block is slidably inserted into the inner wall of the guide rail, and a connecting rod is welded to the outer wall of the guide block. A strainer plate is welded to the bottom outer wall of the heating inner liner via the connecting rod.

[0010] A fixing plate is welded between the two guide blocks, and an electric telescopic rod is fixed to the bottom of the fixing plate via a connector. A connecting pipe is provided on the inner wall of one side of the bottom of the heating inner liner, and the end of the connecting pipe is connected to a cooling shell. A sealing cap is hinged to one end of the top of the cooling shell, and an inlet pipe is connected to the inner wall of one side of the bottom of the cooling shell. A high-temperature resistant circulating pump is connected to the end of the inlet pipe, and a return pipe is installed at the outlet of the high-temperature resistant circulating pump, which is connected to the heating inner liner. A rectangular baffle is installed on the inner wall of the middle part of the cooling shell, and symmetrically distributed vent holes are opened through the outer wall of the rectangular baffle. A guide pipe is inserted into the inner wall of the vent holes. A partition plate is welded to the outer wall of the middle part of the rectangular baffle, and a guide air groove is opened through the top outer wall of the partition plate. An electrical control box is provided on one side of the heat preservation shell, and a PLC controller and an emergency stop button are installed inside the electrical control box. The PLC controller is connected to the electric heating rod, the electric telescopic rod, and the high-temperature resistant circulating pump via signal lines.

[0011] As a further embodiment of this utility model: the top of the protective cover has two circular insertion holes diagonally through it, and the inner walls of the circular insertion holes are respectively connected to a first thermocouple temperature sensor and a second thermocouple temperature sensor. The bottom of the first thermocouple temperature sensor is 200mm from the upper end face, and the bottom of the second thermocouple temperature sensor is 100mm from the lower end face. Both the first thermocouple temperature sensor and the second thermocouple temperature sensor are connected to a PLC controller through signal lines.

[0012] As a further embodiment of this utility model: the bottom outer wall of the fixing plate is welded with guide posts on both sides of the electric telescopic rod, and a limit tube is fixed to one side of the outer wall of the heat insulation shell by screws. The limit tube is located directly below the guide post, and the limit tube and the guide post form an insertion fit.

[0013] As a further embodiment of this utility model: the inner wall size of the heat-insulating shell is adapted to the outer wall size of the protective shell, and the heat-insulating shell is made of Al2SiO5 material.

[0014] As a further improvement of this utility model: the top of the sealing cover is connected to a pressure relief pipe, and a pressure relief valve is inserted into the top outer wall of the pressure relief pipe. The pressure relief valve has pressure relief holes that are evenly distributed around its inner walls.

[0015] As a further improvement of this utility model: a slot is opened on the inner wall of one end of the cooling shell, and a filter screen partition is fixedly engaged with the inner wall of the slot.

[0016] As a further improvement of this utility model: symmetrically distributed guide plates are welded to the inner wall of the other end of the cooling shell, and an intake fan is fixed above the guide plates by screws.

[0017] As a further improvement of this utility model: the internal gas flow direction of the air guide pipe is opposite to the internal high-temperature liquid flow direction of the cooling shell, and the outer wall of the air guide pipe is welded with heat dissipation fins that are evenly distributed.

[0018] Compared with the prior art, this utility model provides a copper sleeve constant temperature heating method and device, which has the following beneficial effects:

[0019] 1. The constant temperature heating device for copper sleeves in this design uses a flowable heat transfer oil medium inside the heating liner for heat transfer treatment, which can make the temperature distribution inside the heating liner uniform and achieve more comprehensive heating treatment of the copper sleeve. Combined with the temperature detection feedback of the thermocouple temperature sensor, the temperature of the heat transfer oil can be precisely controlled, thereby ensuring the subsequent assembly accuracy of the copper sleeve after heating.

[0020] 2. The constant temperature heating device for copper bushings designed in this paper can uniformly heat the copper bushings to prevent defects such as deformation and cracks caused by local overheating or overcooling, thus ensuring the performance and service life of the copper bushings. In addition, constant temperature control can avoid overheating and precisely adjust the heating power according to actual needs, thereby reducing energy consumption.

[0021] 3. The copper sleeve constant temperature heating device designed in this paper only requires placing the copper sleeve on top of the screen plate. Therefore, the device can adapt to the heating needs of copper sleeves of different sizes, shapes and specifications, improve the versatility of the equipment, and make it easy to adjust the heating parameters to meet the temperature requirements of different application scenarios, thus enhancing the flexibility of the equipment.

[0022] 4. The copper-jacketed constant temperature heating device of this design has a cooling shell set on the side of the heating inner tank. When it is necessary to quickly adjust the heat transfer oil medium over a wide range for cooling, external dry ice can be used for rapid auxiliary cooling. The cooling effect is good and safer, thus further improving the practicality and safety of the heating device.

[0023] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a copper sleeve constant temperature heating device proposed in this utility model;

[0025] Figure 2 This is a front view of the overall three-dimensional structure of a copper sleeve constant temperature heating device proposed in this utility model;

[0026] Figure 3 This is a bottom view of the overall three-dimensional structure of a copper sleeve constant temperature heating device proposed in this utility model;

[0027] Figure 4This is a schematic diagram of the unfolded structure of the heating inner liner of a copper-shelter constant temperature heating device proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the internal structure of a copper sleeve constant temperature heating device proposed in this utility model;

[0029] Figure 6 This is a schematic diagram of the unfolded structure of the cooling shell of a copper sleeve constant temperature heating device proposed in this utility model;

[0030] Figure 7 This is a schematic diagram of the internal structure of the cooling shell of a copper sleeve constant temperature heating device proposed in this utility model.

[0031] In the diagram: 1. Heating inner liner; 2. Protective outer shell; 3. Cavity; 4. Electric heating rod; 5. Insulation outer shell; 6. Oil overflow tray; 7. Protective top cover; 8. Circular insertion hole; 9. First thermocouple temperature sensor; 10. Second thermocouple temperature sensor; 11. Handle; 12. Oil overflow pipe; 13. Guide rail; 14. Guide block; 15. Connecting rod; 16. Placement of mesh strainer; 17. Fixing plate; 18. Electric telescopic rod; 19. Limiting tube; 20. Guide column; 1. Connecting pipe; 22. Cooling shell; 23. Sealing cover; 24. Liquid inlet pipe; 25. High-temperature resistant circulating pump; 26. Return pipe; 27. Rectangular baffle; 28. Vent hole; 29. ​​Air guide pipe; 30. Divider plate; 31. Air guide groove; 32. Slot; 33. Filter screen partition; 34. Flow guide inclined plate; 35. Air intake fan; 36. Electrical control box; 37. PLC controller; 38. Emergency stop button; 39. Pressure relief pipe; 40. Pressure relief valve; 41. Pressure relief hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Example 1:

[0034] A copper sleeve constant temperature heating device, in this embodiment, such as Figure 1-7As shown, the device includes a heating inner liner 1, a protective outer shell 2 welded to the outer wall of the heating inner liner 1, and a cavity 3 between the heating inner liner 1 and the protective outer shell 2. An electric heating rod 4 is installed on the inner wall of the cavity 3, and an insulation shell 5 is bonded to the outer wall of the protective outer shell 2. An oil overflow tray 6 is placed at the bottom of the insulation shell 5. A protective top cover 7 is hinged to one end of the top of the heating inner liner 1, and a handle 11 is welded to the top outer wall of the protective top cover 7. An oil overflow pipe 12 is passed through the top of one side of the inner wall of the heating inner liner 1, and two guide rails 13 are fixed in a parallel direction on one side of the outer wall of the insulation shell 5. A guide block 14 is slidably inserted into the inner wall of the guide rail 13, and a connecting rod 15 is welded to the outer wall of the guide block 14. A strainer plate 16 is welded to the bottom outer wall of the connecting rod 15.

[0035] A fixing plate 17 is welded between the two guide blocks 14, and an electric telescopic rod 18 is fixed to the bottom of the fixing plate 17 via a connector. A connecting pipe 21 is provided on the inner wall of one side of the bottom of the heating inner liner 1, and the end of the connecting pipe 21 is connected to a cooling shell 22. A sealing cap 23 is hinged to one end of the top of the cooling shell 22, and an inlet pipe 24 is connected to the inner wall of one side of the bottom of the cooling shell 22. A high-temperature resistant circulating pump 25 is connected to the end of the inlet pipe 24, and a return pipe 26 is installed at the outlet of the high-temperature resistant circulating pump 25 to communicate with the heating inner liner 1. The cooling shell 2... A rectangular baffle 27 is installed on the inner wall of the middle part of the 2, and symmetrically distributed vent holes 28 are opened through the outer wall of the rectangular baffle 27. A vent pipe 29 is inserted into the inner wall of the vent hole 28. A partition plate 30 is welded to the outer wall of the middle part of the rectangular baffle 27, and a guide air groove 31 is opened through the top outer wall of the partition plate 30. An electrical control box 36 is provided on one side of the heat insulation shell 5, and a PLC controller 37 and an emergency stop button 38 are provided inside the electrical control box 36. The PLC controller 37 is connected to an electric heating rod 4, an electric telescopic rod 18 and a high-temperature resistant circulating pump 25 through a signal line.

[0036] By using a flowable heat transfer oil medium inside the heating inner liner 1 for heat conduction treatment, the temperature distribution inside the heating inner liner 1 can be made uniform, which can achieve more comprehensive heating treatment of the copper sleeve. Combined with the temperature detection feedback of the thermocouple temperature sensor, the temperature of the heat transfer oil can be precisely controlled, thereby ensuring the subsequent assembly accuracy of the copper sleeve after heating.

[0037] The protective top cover 7 has two circular holes 8 diagonally through the top, and a first thermocouple temperature sensor 9 and a second thermocouple temperature sensor 10 are respectively inserted into the inner wall of the circular holes 8. The bottom of the first thermocouple temperature sensor 9 is 200mm from the upper end face, and the bottom of the second thermocouple temperature sensor 10 is 100mm from the lower end face. Both the first thermocouple temperature sensor 9 and the second thermocouple temperature sensor 10 are connected to a PLC controller 37 through signal lines.

[0038] The top of the sealing cover 23 is connected to a pressure relief pipe 39, and a pressure relief valve 40 is inserted into the top outer wall of the pressure relief pipe 39. The pressure relief valve 40 has pressure relief holes 41 that are evenly distributed around its inner wall.

[0039] The bottom outer wall of the fixing plate 17 is welded with guide posts 20 on both sides of the electric telescopic rod 18, and the outer wall of one side of the heat insulation shell 5 is fixed with a limit tube 19 by screws. The limit tube 19 is located directly below the guide post 20, and the limit tube 19 and the guide post 20 form an insertion fit.

[0040] Uniform heating of the copper bushing can prevent defects such as deformation and cracks caused by local overheating or undercooling, ensuring the performance and service life of the copper bushing. In addition, constant temperature control can avoid overheating and precisely adjust the heating power according to actual needs, thereby reducing energy consumption.

[0041] The inner wall dimensions of the heat-insulating shell 5 are adapted to the outer wall dimensions of the protective shell 2, and the heat-insulating shell 5 is made of Al2SiO5 material;

[0042] Example 2:

[0043] A copper-shrouded constant-temperature heating device, such as Figure 1-4 As shown, this embodiment makes the following additions based on embodiment 1: symmetrically distributed guide plates 34 are welded to the inner wall of the other end of the cooling housing 22, and an intake fan 35 is fixed above the guide plates 34 by screws; a slot 32 is opened on the inner wall of one end of the cooling housing 22, and a filter screen partition 33 is fixedly engaged on the inner wall of the slot 32.

[0044] By setting a cooling shell 22 on the side of the heating inner tank 1, when it is necessary to quickly adjust the heat transfer oil medium over a wide range for cooling, external dry ice can be used for rapid auxiliary cooling. The cooling effect is good and it is also safer, thereby further improving the practicality and safety of the heating device.

[0045] The gas flow direction inside the air duct 29 is opposite to the flow direction of the high-temperature liquid inside the cooling shell 22, and the outer wall of the air duct 29 is welded with heat dissipation fins that are evenly distributed.

[0046] Simply place the copper sleeve on top of the slotted mesh plate 16, and the device can adapt to the heating needs of copper sleeves of different sizes, shapes and specifications, improve the versatility of the equipment, and make it easy to adjust the heating parameters to meet the temperature requirements of different application scenarios, thus enhancing the flexibility of the equipment.

[0047] A method for constant-temperature heating of a copper bushing includes the following steps:

[0048] S1: First, assemble the heating device. After assembly, pour the heat transfer oil medium to be heated into the interior of the heating inner tank 1 until the liquid level of the heat transfer oil is below the overflow pipe 12. Then, use the electric telescopic rod 18 to adjust the placement screen plate 16 to the same height as the top outer wall of the heating inner tank 1. Place the copper sleeve to be heated on the top of the placement screen plate 16. Then, use the electric telescopic rod 18 to retract and lower the copper sleeve into the interior of the heating inner tank 1, and close the protective top cover 7.

[0049] S2: Then, the first thermocouple temperature sensor 9 is inserted at a position 200mm from the upper end face, and the second thermocouple temperature sensor 10 is inserted at a position 100mm from the lower end face. They are then connected to the PLC controller 37 and connected to an external power supply.

[0050] S3: The next step is to start the electric heating rod 4. The electric energy of the electric heating rod 4 is converted into heat energy, which can heat up the heat transfer oil inside the heating inner tank 1. At this time, the high temperature resistant circulation pump 25 is also started to extract the heat transfer oil inside the heating inner tank 1 and return it to the heating inner tank 1 through the cooling shell 22, the liquid inlet pipe 24 and the return pipe 26, so that the heat transfer oil inside the heating inner tank 1 can circulate and the heat can be distributed more evenly.

[0051] S4: During the heating process, based on the real-time temperature feedback monitoring of the first thermocouple temperature sensor 9 and the second thermocouple temperature sensor 10, and in conjunction with the electric heating rod 4, it has a precise temperature control function. The target temperature and temperature fluctuation range can be set, and the heating power and circulation flow rate can be automatically adjusted according to the heating range required by different models of copper tubes in actual use.

[0052] S5: After the heat transfer oil medium has been heated to the required temperature range, and the copper sleeve has been heated, open the protective top cover 7 and use the electric telescopic rod 18 to adjust the placement mesh plate 16 to the height of the top of the heating inner tank 1. Then the copper sleeve can be quickly removed to complete the subsequent assembly work.

[0053] S6: In addition, in case of an emergency, such as abnormally high temperature of the heat transfer oil or the inability of the heat transfer oil to cool down quickly when heating different models of copper bushings, simply open the top sealing cover 23 of the cooling housing 22, place a suitable dry ice block above the filter screen 33, close the sealing cover 23, start the intake fan 35, and use the heat absorption property of dry ice sublimation to continuously blow out low-temperature gas into the air duct 29. This gas comes into contact with the high-temperature heat transfer oil flowing inside the cooling housing 22, which can quickly cool down the heat transfer oil and thus handle the emergency. Since a large amount of carbon dioxide is generated during the sublimation of dry ice, the increased air pressure inside the cooling housing 22 will push up the pressure relief valve 40, thereby completing the pressure relief and ensuring the normal operation of the device.

[0054] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A copper-clad constant-temperature heating device, comprising a heating inner liner (1), characterized in that, The outer wall of the heating inner liner (1) is welded with a protective shell (2), and a cavity (3) is provided between the heating inner liner (1) and the protective shell (2). An electric heating rod (4) is installed on the inner wall of the cavity (3), and a heat-insulating shell (5) is bonded to the outer wall of the protective shell (2). An oil overflow tray (6) is placed at the bottom of the heat-insulating shell (5). A protective top cover (7) is hinged to one end of the top of the heating inner liner (1), and the top outer wall of the protective top cover (7) is... A handle (11) is welded on. An oil overflow pipe (12) is connected through the top of one side of the inner wall of the heating inner liner (1). Two guide rails (13) are fixed along the parallel direction on one side of the outer wall of the heat-insulating shell (5). A guide block (14) is slidably inserted into the inner wall of the guide rail (13). A connecting rod (15) is welded to the outer wall of the guide block (14). A strainer plate (16) is welded to the bottom outer wall of the heating inner liner (1). A fixing plate (17) is welded between the two guide blocks (14), and an electric telescopic rod (18) is fixed to the bottom of the fixing plate (17) by a connector. A connecting pipe (21) is provided on the inner wall of the bottom side of the heating inner liner (1), and a cooling shell (22) is connected to the end of the connecting pipe (21). A sealing cap (23) is hinged to the top end of the cooling shell (22), and an inlet pipe (24) is connected to the inner wall of the bottom side of the cooling shell (22). A high-temperature resistant circulating pump (25) is connected to the end of the inlet pipe (24), and a return pipe (26) is installed at the outlet end of the high-temperature resistant circulating pump (25) to communicate with the heating inner liner (1). The cooling shell (22) A rectangular baffle (27) is installed on the inner wall of the middle part of the shell, and a symmetrically distributed ventilation hole (28) is opened through the outer wall of the rectangular baffle (27). A vent pipe (29) is inserted into the inner wall of the ventilation hole (28). A partition plate (30) is welded to the outer wall of the middle part of the rectangular baffle (27), and a guide air groove (31) is opened through the top outer wall of the partition plate (30). An electrical control box (36) is provided on one side of the heat insulation shell (5), and a PLC controller (37) and an emergency stop button (38) are provided inside the electrical control box (36). The PLC controller (37) is connected to an electric heating rod (4), an electric telescopic rod (18) and a high-temperature circulating pump (25) through a signal line.

2. The copper sleeve constant temperature heating device according to claim 1, characterized in that, The protective top cover (7) has two circular insertion holes (8) diagonally through the top. The inner walls of the circular insertion holes (8) are respectively connected to a first thermocouple temperature sensor (9) and a second thermocouple temperature sensor (10). The bottom of the first thermocouple temperature sensor (9) is 200mm from the upper end face, and the bottom of the second thermocouple temperature sensor (10) is 100mm from the lower end face. Both the first thermocouple temperature sensor (9) and the second thermocouple temperature sensor (10) are connected to a PLC controller (37) through signal lines.

3. The copper sleeve constant temperature heating device according to claim 1, characterized in that, The bottom outer wall of the fixed plate (17) is welded with guide posts (20) on both sides of the electric telescopic rod (18), and the outer wall of one side of the heat insulation shell (5) is fixed with a limit tube (19) by screws. The limit tube (19) is located directly below the guide post (20), and the limit tube (19) and the guide post (20) form a plug-in fit.

4. The copper sleeve constant temperature heating device according to claim 1, characterized in that, The inner wall dimensions of the heat insulation shell (5) are adapted to the outer wall dimensions of the protective shell (2), and the heat insulation shell (5) is made of Al2SiO5 material.

5. The copper sleeve constant temperature heating device according to claim 1, characterized in that, The top of the sealing cover (23) is connected to a pressure relief pipe (39), and a pressure relief valve (40) is inserted into the top outer wall of the pressure relief pipe (39). The pressure relief valve (40) has pressure relief holes (41) that are evenly distributed around its inner wall.

6. The copper sleeve constant temperature heating device according to claim 1, characterized in that, The inner wall of one end of the cooling housing (22) has a slot (32), and a filter screen partition (33) is fixedly engaged with the inner wall of the slot (32).

7. A copper sleeve constant temperature heating device according to claim 6, characterized in that, The inner wall of the other end of the cooling housing (22) is welded with symmetrically distributed guide plates (34), and an intake fan (35) is fixed above the guide plates (34) by screws.

8. The copper sleeve constant temperature heating device according to claim 1, characterized in that, The gas flow direction inside the air duct (29) is opposite to the flow direction of the high-temperature liquid inside the cooling shell (22), and the outer wall of the air duct (29) is welded with heat dissipation fins distributed at equal intervals.

Images