An electric heating heat transfer oil furnace

Abstract

An embodiment of the present invention provides an electric heating heat-conducting oil furnace, which includes a frame, a circulating oil pump, and a control cabinet; it further includes: a heating unit, which includes a supporting cross plate arranged on the frame, a first side plate and a second side plate arranged at both ends of the bottom of the supporting cross plate, a heating cylinder arranged on the first side plate and the second side plate, and a heater arranged in the heating cylinder; a liquid inlet pipe and a liquid outlet pipe are respectively arranged at both ends of the heating cylinder; a cooling unit, the cooling unit includes a temperature control mechanism, a cutting-off mechanism, a cooling mechanism, and a blast pipe rotatably arranged around the heating cylinder; the cooling mechanism includes a spiral pipe arranged on the outer wall of the heating cylinder and a water storage tank arranged on the supporting cross plate, and the spiral pipe is used for circulating the cooling water in the water storage tank; wherein, the cutting-off mechanism selectively controls one of the temperature control mechanism and the cooling mechanism to drive the blast pipe to rotate. The heating cylinder can be quickly and safely cooled down.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of heat transfer oil furnaces, and specifically to an electric heating heat transfer oil furnace. Background Art

[0002] An electric heating heat transfer oil furnace is a new type, safe, highly energy-efficient, low-pressure special industrial furnace that can provide high-temperature heat energy. It uses heat transfer oil as the heat carrier, and through a heat transfer oil pump, the heat carrier circulates to transfer heat to the heat-using equipment. The electric heating heat transfer oil furnace uses electricity as the energy source, converts electrical energy into heat energy through electric heating elements, uses organic heat carrier as the heat transfer medium, and through a high-temperature oil pump, the heat transfer oil is forced to circulate in the system, and it is heated repeatedly, so as to achieve the purpose of meeting the continuous heat energy required by the heat-using equipment, and can meet the process temperature set in the production process and the requirements of high-precision temperature control.

[0003] Currently, when the heat transfer oil heater in an electric heating heat transfer oil furnace stops working, at the moment of shutdown in the high-temperature operating state, the surface of the heating tube is still in a high-temperature state. At this time, the heat transfer oil in the heating tube barrel stops flowing, which will cause the local temperature of the heat transfer oil on the surface of the heating tube to be too high, resulting in carbon deposition. After the carbon deposition forms scale in the heater, it will cause the heating rate to slow down, the temperature to be uneven, accelerate the aging and damage of the equipment. Even when a large amount of carbon deposition accumulates at the pipe bend, it will form partial overheating and gas accumulation, causing pipe cracking or oil spraying, leading to a fire and safety accidents.

[0004] Therefore, when the heater stops working, how to cool down the heating tube is an urgent problem to be solved. The patent with the publication number (CN218722293U) discloses an electric heating heat transfer oil furnace with high safety, including a working frame. At the top of the working frame, a heating box and a control cabinet are respectively installed. Inside the heating box, a heater is installed, and a circulation pipeline is arranged on one side of the heater. At the top of the heating box, a water tank is installed. A number of spray heads are arranged at the bottom of the water tank, and the spray heads extend into the heating box and are located at the top of the heater. A heat dissipation plate is movably installed on one side of the heating box, and a number of heat dissipation grooves are formed on the surface of the heat dissipation plate. A cooling fan is arranged on the other side of the heating box, and the cooling fan faces the side of the heater. Through the combined use of the spray heads and the cooling fan, this device can quickly cool the heater to room temperature, avoid local overheating of the heat transfer oil on the surface of the electric heating tube to form carbon deposits, extend the service life, and greatly improve the safety of equipment use. This patent solves the problem of quickly cooling the heating tube when the heater stops working. However, in the technical solution of this patent, water is directly sprayed on the high-temperature heating tube. This cooling method is relatively intense. Direct spraying of water may cause the heat transfer oil in the heating cylinder to be polluted by water, affecting the performance and service life of the heat transfer oil, and even may cause the entire heat transfer oil system to malfunction; direct spraying of water for cooling may cause the high-temperature heating cylinder to experience a drastic temperature change in a short time, easily leading to thermal stress concentration in the heating cylinder, and even may cause damage such as cracks, affecting the service life and safety of the equipment. Therefore, a better method is needed to solve the problem of cooling the heating tube. Summary of the Invention

[0005] An embodiment of the present invention aims to at least solve one of the technical problems existing in the prior art, and provides an electric heating heat transfer oil furnace.

[0006] An embodiment of the present invention provides an electric heating heat transfer oil furnace, including a frame, a circulating oil pump, and a control cabinet; further including:

[0007] A heating unit, the heating unit includes a support cross plate arranged on the frame, a first side plate and a second side plate arranged at both ends of the bottom of the support cross plate, a heating cylinder arranged on the first side plate and the second side plate, and a heater arranged inside the heating cylinder; liquid inlet pipes and liquid outlet pipes are respectively arranged at both ends of the heating cylinder;

[0008] A cooling unit, the cooling unit includes a temperature control mechanism, a cut-off mechanism, a cooling mechanism, and a blower pipe rotatably arranged around the heating cylinder; the cooling mechanism includes a spiral pipeline arranged on the outer wall of the heating cylinder and a water storage tank arranged on the support cross plate, and the spiral pipeline is used for circulating the cooling water in the water storage tank; wherein, the cut-off mechanism selectively controls one of the temperature control mechanism and the cooling mechanism to drive the blower pipe to rotate.

[0009] In some possible embodiments, the heater includes a heating plate disposed at one end of the heating cylinder close to the liquid inlet pipe, a plurality of heat pipes spaced apart from each other on the heating plate, and a plurality of support partitions spaced along the axial length direction of the heating cylinder and disposed on the inner wall of the heating cylinder; a plurality of plum blossom holes are spaced on the support partition, and the plum blossom holes correspond to the heat pipes one by one.

[0010] In some possible embodiments, the plurality of heat pipes are distributed at equal intervals in a matrix; and / or, the plurality of plum blossom holes are distributed at equal intervals in a matrix.

[0011] In some possible embodiments, the temperature reduction unit further includes a first rotating bracket disposed on the first side plate and a second rotating bracket fixedly disposed on the second side plate, the air blowing pipe includes two rotating rings and a plurality of blades; and,

[0012] One of the rotating rings is rotatably disposed on the first rotating bracket, the other rotating ring is rotatably disposed on the second rotating bracket, and the plurality of blades are annularly spaced between the two rotating rings.

[0013] In some possible embodiments, the temperature control mechanism further includes a gearbox disposed on the first side plate;

[0014] The gearbox has an input shaft and an output shaft, the input shaft is in transmission connection with the rotating pipe, and the output shaft is in transmission connection with the rotating ring mounted on the first rotating bracket.

[0015] In some possible embodiments, the cutting mechanism includes a bearing bracket fixedly disposed on the gearbox, a bearing shaft rotatably disposed on the bearing bracket, a driving pulley and a top ring disposed on the bearing shaft, a transmission sleeve coaxially and key-connected with the bearing shaft, a first chuck disposed on the output shaft, a second chuck disposed at the end of the transmission sleeve, a return spring sleeved on the transmission sleeve, a transmission belt pulley disposed on the rotating ring close to the first side plate, a push rod disposed beside the bearing bracket, and a push plate disposed on the telescopic shaft of the push rod;

[0016] A transmission belt is disposed between the driving pulley and the transmission belt pulley, one end of the push plate away from the push rod is rotatably connected to the transmission sleeve, one end of the return spring is connected to the top ring, and the other end is connected to the push plate.

[0017] In some possible embodiments, the temperature control mechanism further includes a rotating connection pipe coaxial with the liquid inlet pipe and connected to the first side plate, a rotating pipe rotatably disposed between the rotating connection pipe and the liquid inlet pipe, and a driving impeller disposed in the rotating pipe, and the rotating pipe is in transmission connection with the air blowing pipe.

[0018] In some possible embodiments, the cooling mechanism further includes a storage tank disposed at one end of the heating cylinder close to the liquid outlet pipe, a release pipe and a return pipe disposed on the storage tank, a mounting box disposed on the second side plate, a rotating shaft rotatably disposed in the mounting box, a driving gear disposed on the rotating shaft, a power gear ring disposed on a rotating ring close to the second side plate, a wind wheel rotatably disposed in the mounting box, a transfer box disposed on the second side plate, and a compressor fixedly disposed beside the transfer box;

[0019] An air inlet pipe and an air outlet pipe are disposed on the mounting box. The wind wheel is coaxially and fixedly connected to the rotating shaft, and the power gear ring meshes with the driving gear. A pressure relief valve is disposed on the storage tank. The release pipe is communicated with the air inlet pipe and an electromagnetic valve is disposed on the release pipe. The air outlet pipe is communicated with the inside of the transfer box. The inlet of the compressor is communicated with the inside of the transfer box, and the outlet is communicated with the return pipe.

[0020] In some possible embodiments, one end of the spiral pipe close to the first side plate is provided with a water outlet end, and one end close to the second side plate is provided with a water inlet end;

[0021] A liquid inlet ball valve is disposed on the water inlet end, and a transmission gear is disposed on the control shaft of the liquid inlet ball valve.

[0022] In some possible embodiments, the cooling mechanism further includes a piston pipe disposed on the second side plate, a piston rod elastically and slidably disposed in the piston pipe, and a transmission rack disposed on the piston rod;

[0023] The transmission rack meshes with the transmission gear. A shunt pipe is disposed on the air inlet pipe, and the shunt pipe is communicated with the piston pipe. Both the water inlet end and the water outlet end are communicated with the inside of the water storage tank.

[0024] In the electric heating heat transfer oil furnace according to the embodiment of the present invention, by arranging a spiral pipe and a blower pipe around the heating cylinder, after the device stops working, heat exchange is carried out between the heating cylinder through blowing by the blower pipe and the flow of the coolant in the spiral pipe, so that the heating cylinder has both air cooling and water cooling for double cooling, preventing the device from being damaged due to excessive temperature. In addition, in the electric heating heat transfer oil furnace according to the embodiment of the present invention, based on the principle of thermal expansion and contraction, high-pressure air flow is used to blow to form rotation, and then drive the blower pipe to rotate, saving energy and production costs. Finally, the electric heating heat transfer oil furnace according to the embodiment of the present invention has higher safety compared with the traditional cooling method of directly spraying water on the high-temperature heating cylinder. Heat exchange cooling is carried out by the flow of cooling water in the spiral pipe, and the temperature change is relatively gentle, which can effectively reduce the influence of thermal stress on the heating cylinder and ensure that the device can be used for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 is a schematic three-dimensional structure of the electric heating heat transfer oil furnace according to an embodiment of the present invention Figure 1 ;

[0027] Figure 2 is a schematic three-dimensional structure diagram at the first side plate and the second side plate according to an embodiment of the present invention;

[0028] Figure 3 is a schematic three-dimensional structure of the electric heating heat transfer oil furnace according to an embodiment of the present invention Figure 2 ;

[0029] Figure 4 is a front view of the electric heating heat transfer oil furnace according to an embodiment of the present invention;

[0030] Figure 5 is a schematic three-dimensional structure diagram of the heating cylinder and the spiral pipeline according to an embodiment of the present invention;

[0031] Figure 6 is a schematic three-dimensional structure diagram of the air supply pipe according to an embodiment of the present invention;

[0032] Figure 7 is an exploded schematic three-dimensional structure diagram of the heating pipe and the heater according to an embodiment of the present invention;

[0033] Figure 8 is a schematic plan view of the plum blossom holes formed in the support partition according to an embodiment of the present invention;

[0034] Figure 9 is a schematic three-dimensional structure diagram at the first side plate according to an embodiment of the present invention;

[0035] Figure 10 is an exploded schematic three-dimensional structure diagram at the first chuck and the second chuck according to an embodiment of the present invention;

[0036] Figure 11 is a schematic three-dimensional structure diagram of the storage tank according to an embodiment of the present invention.

[0037] The reference numerals in the figure are:

[0038] 1. Support cross plate; 2. First side plate; 3. Second side plate; 4. Heating cylinder; 5. Heater; 6. Heating plate; 7. Heat pipe; 8. Support partition; 9. Plum blossom hole; 10. Liquid inlet pipe; 11. Liquid outlet pipe; 12. First rotating bracket; 13. Blower pipe; 14. Rotating ring; 15. Blade; 16. Driving pulley; 17. Power gear ring; 18. Second rotating bracket; 19. Adapter pipe; 20. Rotating pipe; 21. Driving impeller; 22. Gearbox; 23. Input shaft; 24. Output shaft; 25. First chuck; 26. Bearing bracket; 27. Bearing shaft; 28. Driving pulley; 29. Transmission belt; 30. Transmission sleeve; 31. Second chuck; 32. Top ring; 33. Return spring; 34. Push rod; 35. Push plate; 36. Spiral pipe; 37. Water inlet end; 38. Liquid inlet ball valve; 39. Transmission gear; 40. Water outlet end; 41. Piston pipe; 42. Piston rod; 43. Transmission rack; 44. Water storage tank; 45. Storage box; 46. Release pipe; 47. Solenoid valve; 48. Pressure relief valve; 49. Return pipe; 50. Installation box; 51. Rotating shaft; 52. Wind wheel; 53. Driving gear; 54. Air inlet pipe; 55. Diverging pipe; 56. Air outlet pipe; 57. Transfer storage box; 58. Compressor. Detailed implementation mode

[0039] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present invention.

[0040] Unless otherwise specifically stated, the technical terms or scientific terms used in the embodiments of the present invention should be the generally understood meanings by those with ordinary skills in the field to which the present invention belongs. The "including" or "containing" used in the embodiments of the present invention neither limits the mentioned shapes, numbers, steps, actions, operations, components, originals and / or their groups, nor excludes the appearance or addition of one or more other different shapes, numbers, steps, actions, operations, components, originals and / or their groups, or the addition of these. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity and order of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, the meaning of "a plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] Unless otherwise specifically stated, the relative settings, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships, and technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail. In all the examples shown and discussed here, any specific other examples may have different values. It should be noted that: similar symbols and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0042] In the description of the embodiments of the present invention, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the embodiments of the present invention, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in the embodiments of the present invention and the features of different embodiments or examples.

[0043] Next, exemplary embodiments of the present invention will be described in detail with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments of the present invention. It should be understood that the present invention is not limited by the exemplary embodiments described herein.

[0044] An embodiment of the present invention relates to an electric heating heat transfer oil furnace, which includes a frame, a circulating oil pump, a control cabinet, a heating unit, and a cooling unit.

[0045] Exemplarily, as Figures 1 to 11 shown, the heating unit includes a support cross plate 1 provided on the frame, a first side plate 2 and a second side plate 3 symmetrically arranged at both ends of the bottom of the support cross plate 1, a heating cylinder 4 provided on the first side plate 2 and the second side plate 3, and a heater 5 coaxially arranged in the heating cylinder 4. Liquid inlet pipes 10 and liquid outlet pipes 11 are respectively arranged at both ends of the heating cylinder 4. In a preferred embodiment, a liquid inlet pipe 10 is provided at one end of the heating cylinder 4 close to the first side plate 2, and a liquid outlet pipe 11 is provided at one end close to the second side plate 3.

[0046] Exemplarily, as Figures 1 to 11As shown in the figure, the temperature reduction unit includes a temperature control mechanism, a cutting mechanism, a cooling mechanism, and a blower duct 13 rotatably arranged around the heating cylinder 4. The cooling mechanism includes a spiral pipe 36 arranged on the outer wall of the heating cylinder 4 and a water storage tank 44 arranged on the support cross plate 1. The spiral pipe 36 is used for circulating the cooling water in the water storage tank 44. The cutting mechanism selectively controls one of the temperature control mechanism and the cooling mechanism to drive the blower duct 13 to rotate.

[0047] In some embodiments, the temperature control mechanism has a rotation drive end for driving the blower duct 13 to rotate. The cooling mechanism further includes a high-speed rotation output end for driving the blower duct 13 to rotate at a high speed. The cutting mechanism has a cutting output end for cutting off the connection between the blower duct 13 and the rotation drive end of the temperature control mechanism when the blower duct 13 rotates at a high speed.

[0048] Working principle: It should be noted that a controller is provided in the control cabinet. First, through the cooperation of the heater 5 and the circulating oil pump, the heat-conducting oil is heated and circulated in the system to supply heat to the heat-requiring equipment. During the heat supply process, the rotation drive end drives the blower duct 13 to rotate. The rotation of the blower duct 13 forms a wind flow outside the heating cylinder 4, ensuring that the temperature of the heating cylinder 4 does not become too high during the operation of the equipment, which is beneficial to the long-term operation of the equipment. When the equipment is set to stop working, the cutting mechanism cuts off the connection between the blower duct 13 and the rotation drive end. At the same time, the high-speed rotation output end of the cooling mechanism drives the blower duct 13 to rotate at a high speed, making the wind flow velocity generated by the blower duct 13 faster, thereby cooling the heating pipe 7 with cold air. At the same time, the cooling water in the water storage tank 44 also circulates through the spiral pipe 36, so that the cooling water flowing in the spiral pipe 36 takes away the heat of the heating cylinder 4 to form water-cooling. Thus, through the blowing of the blower duct 13 and the flow of the cooling water in the spiral pipe 36, when the equipment stops working, air-cooling and water-cooling can be carried out simultaneously outside the heating cylinder 4, enabling the heating cylinder 4 to cool down quickly and safely. When the temperature in the heating cylinder 4 drops to normal temperature, the circulating oil pump stops working and the heat-conducting oil stops flowing.

[0049] In order to show the detailed structure of the heater 5, the following features are specifically set:

[0050] The heater 5 includes a heating plate 6 coaxially and fixedly arranged at one end of the heating cylinder 4 close to the liquid inlet pipe 10, a number of heat pipes 7 arranged on the heating plate 6 at equal intervals in a matrix, and a number of support partitions 8 fixedly arranged on the inner wall of the heating cylinder 4 at equal intervals along the axial length direction of the heating cylinder 4. A number of plum blossom holes 9 are arranged at equal intervals in a matrix on the support partitions 8 (see Figure 7 and Figure 8 ), and the number of plum blossom holes 9 corresponds to the number of heat pipes 7 one by one.

[0051] By arranging plum blossom holes 9 on the supporting partition 8 to support the heat pipe 7, the equipment can be more stable during operation. Moreover, by adopting the plum blossom holes 9 to support the heat pipe 7, the temperature uniformity in the heating tube 4 and the average outlet temperature are not much different. The coking probability of the supporting partition 8 with plum blossom holes 9 is lower than that of the traditional swirl-shaped support plate, diamond-shaped support plate and grid-shaped support plate.

[0052] In order to show the specific installation structure of the blast pipe 13, the following features are also specifically provided:

[0053] The cooling unit further includes a first rotating bracket 12 fixedly disposed on the first side plate 2 and a second rotating bracket 18 fixedly disposed on the second side plate 3 (combined with Figure 4 and Figure 9 ), the blast pipe 13 includes two rotating rings 14 and a plurality of blades 15, one rotating ring 14 is rotatably arranged on the first rotating bracket 12, and the other rotating ring 14 is rotatably arranged on the second rotating bracket 18, and the plurality of blades 15 are fixedly arranged between the two rotating rings 14 in a ring shape at equal intervals.

[0054] When the device is running, a plurality of blades 15 rotate to form wind flow, and the wind flow wraps around the heating tube 7, so the contact area between the wind flow and the heating tube 7 is larger, and the cooling effect is better.

[0055] In order to show the detailed structure of the rotary drive end of the temperature control mechanism, the following features are also specifically set:

[0056] The temperature control mechanism includes a transfer tube 19 which is coaxial with the liquid inlet pipe 10 and fixedly connected to the first side plate 2, a rotating tube 20 which is rotatably arranged between the transfer tube 19 and the liquid inlet pipe 10, and a driving impeller 21 which is coaxially fixedly arranged in the rotating tube 20. The rotating tube 20 is transmission-connected to the blast pipe 13.

[0057] The rotating tube 20 is the rotating driving end of the temperature control mechanism.

[0058] It should be noted that the transfer tube 19 is connected to the circulating oil pump, which pumps the heat transfer oil from the transfer tube 19 to the liquid inlet pipe 10. When the heat transfer oil flows, the heat transfer oil causes the driving impeller 21 to rotate, and the driving impeller 21 rotates to rotate the rotating tube 20, and the rotating tube 20 rotates to drive the blast tube 13 to rotate.

[0059] In order to enable the rotational power of the water flow driving the impeller 21 to drive the blast pipe 13 to rotate, the following features are specifically provided:

[0060] The temperature control mechanism also includes a gearbox 22 fixedly arranged on the first side plate 2, the gearbox 22 has an input shaft 23 and an output shaft 24, the input shaft 23 is connected to the rotating tube 20 through a pulley, and the output shaft 24 is transmission-connected to the rotating ring 14 installed on the first rotating bracket 12.

[0061] When the rotating tube 20 rotates, the rotation of the rotating tube 20 drives the input shaft 23 of the gearbox 22 to rotate through a pulley. After that, this rotational power is transmitted through the speed change of the gearbox 22, causing the output shaft 24 to rotate. The rotation of the output shaft 24 drives the rotating ring 14 to rotate, and the rotation of the rotating ring 14 drives all the blades 15 to rotate to form an air current.

[0062] In order to show the detailed structure of the cutting mechanism, the following features are specifically set:

[0063] The cutting mechanism includes a bearing bracket 26 fixedly arranged on the gearbox 22, a bearing shaft 27 rotatably arranged on the bearing bracket 26, a driving pulley 28 coaxially and fixedly arranged on the bearing shaft 27, a transmission sleeve 30 key-connected coaxially with the bearing shaft 27, a first chuck 25 coaxially and fixedly arranged on the output shaft 24, a second chuck 31 coaxially and fixedly arranged at the end of the transmission sleeve 30, a top ring 32 coaxially and fixedly arranged on the bearing shaft 27, a return spring 33 coaxially sleeved on the transmission sleeve 30, a transmission belt pulley 16 coaxially and fixedly arranged on the rotating ring 14 close to the first side plate 2, a push rod 34 fixedly arranged beside the bearing bracket 26, and a push plate 35 fixedly arranged on the telescopic shaft of the push rod 34. A transmission belt 29 is arranged between the driving pulley 28 and the transmission belt pulley 16. One end of the push plate 35 away from the push rod 34 is rotatably connected to the transmission sleeve 30. One end of the return spring 33 is connected to the top ring 32, and the other end is connected to the push plate 35.

[0064] It should be noted that when the heat-conducting oil furnace is running normally, under the action of the return spring 33, the first chuck 25 is clamped with the second chuck 31. When the rotational power of the rotating tube 20 is transmitted through the gearbox 22, the output shaft 24 of the gearbox 22 drives the first chuck 25 to rotate. After that, through the transmission of the second chuck 31, the transmission sleeve 30, the bearing shaft 27, the driving pulley 28, the transmission belt 29 and the transmission belt pulley 16, the rotating ring 14 installed on the first rotating bracket 12 is driven to rotate, and then the blades 15 and another rotating ring 14 installed on the second rotating bracket 18 are driven to rotate. When the equipment stops working, the controller in the control cabinet controls the push rod 34 to drive the transmission sleeve 30 to move along the axis of the bearing shaft 27 through the push plate 35, so as to separate the second chuck 31 from the first chuck 25, facilitating the subsequent high-speed rotation of the output end to drive the air duct 13 to rotate quickly.

[0065] In order to show the detailed structure of the cooling mechanism, the following features are specifically set:

[0066] The cooling mechanism further includes a storage tank 45 coaxially and fixedly arranged at one end of the heating cylinder 4 close to the liquid outlet pipe 11 (in combination with Figure 2 and Figure 11), a release pipe 46 and a return pipe 49 fixedly arranged on the storage tank 45, a mounting box 50 fixedly arranged on the second side plate 3, a rotating shaft 51 rotatably arranged in the mounting box 50, and a driving gear 53 coaxially and fixedly arranged on the rotating shaft 51 (as Figure 3 shown), a power gear ring 17 coaxially and fixedly arranged on the rotating ring 14 close to the second side plate 3, a wind wheel 52 rotatably arranged in the mounting box 50, a transfer box 57 fixedly arranged on the second side plate 3, and a compressor 58 fixedly arranged beside the transfer box 57. An air inlet pipe 54 and an air outlet pipe 56 are arranged on the mounting box 50. The wind wheel 52 is coaxially and fixedly connected to the rotating shaft 51. The power gear ring 17 meshes with the driving gear 53. A pressure relief valve 48 is arranged on the storage tank 45. The release pipe 46 communicates with the air inlet pipe 54. An electromagnetic valve 47 is arranged on the release pipe 46. The air outlet pipe 56 communicates with the inside of the transfer box 57. The inlet of the compressor 58 communicates with the inside of the transfer box 57, and the outlet communicates with the return pipe 49.

[0067] The driving gear 53 is the high-speed rotating output end of the cooling mechanism.

[0068] It should be noted that an expansion medium is stored in the storage tank 45, and this expansion medium can release gas when heated. When the equipment is working normally, the temperature of the heating cylinder 4 gradually rises. At this time, the expansion medium in the storage tank 45 expands and releases gas, causing the pressure in the storage tank 45 to gradually increase. Until the temperature of the heating cylinder 4 rises to the normal working range, the expansion medium no longer releases gas. However, at this time, a lot of high-pressure gas has accumulated in the storage tank 45. The pressure relief valve 48 on the storage tank 45 presets a pressure relief value in advance to prevent damage caused by excessive pressure in the storage tank 45. When the equipment stops working, the controller in the control cabinet first controls the push rod 34 to start to separate the first chuck 25 from the second chuck 31, and then controls the electromagnetic valve 47 to open. After the electromagnetic valve 47 is opened, the high-pressure gas rushes into the air inlet pipe 54 from the release pipe 46, and then blows the wind wheel 52 into the transfer box 57. Then the wind wheel 52 rotates to drive the rotating shaft 51 to rotate, the rotating shaft 51 rotates to drive the driving gear 53 to rotate, and the driving gear 53 rotates to drive the rotating ring 14 to rotate through the power gear ring 17, thereby driving the air duct 13 to rotate at a high speed. Wait until the temperature of the heating cylinder 4 drops to room temperature, the electromagnetic valve 47 is closed, and the compressor 58 operates to compress the gas in the transfer box 57 and then return it to the storage tank 45 through the return pipe 49 for the next operation.

[0069] In order to show the detailed structure of the spiral pipe 36, the following features are specifically set:

[0070] One end of the spiral pipe 36 close to the first side plate 2 is provided with a water outlet end 40, and one end close to the second side plate 3 is provided with a water inlet end 37. A liquid inlet ball valve 38 is arranged on the water inlet end 37. A transmission gear 39 is coaxially and fixedly arranged on the control shaft of the liquid inlet ball valve 38. The cooling mechanism further includes a piston pipe 41 fixedly arranged on the second side plate 3, a piston rod 42 coaxially and elastically slidably arranged in the piston pipe 41, and a transmission rack 43 fixedly arranged on the piston rod 42. The transmission rack 43 meshes with the transmission gear 39. A shunt pipe 55 is arranged on the air inlet pipe 54. The shunt pipe 55 communicates with the piston pipe 41. Both the water inlet end 37 and the water outlet end 40 communicate with the inside of the water storage tank 44.

[0071] It should be noted that a water pump is arranged in the water storage tank 44. When high-pressure gas enters the air inlet pipe 54, a part of the high-pressure gas will enter the shunt pipe 55 and then enter the piston pipe 41. Then the piston rod 42 is pushed out. The pushing out of the piston rod 42 drives the movement of the transmission rack 43. The movement of the transmission rack 43 meshes with the transmission gear 39 to open the liquid inlet ball valve 38 at the water inlet end 37. Subsequently, the controller of the control cabinet controls the water pump in the water storage tank 44 to pump the cooling water from the water inlet end 37 into the spiral pipe 36, and then back to the water storage tank 44 from the water outlet end 40. In this way, the cycle is carried out, so as to achieve the heat exchange between the cooling water and the heating cylinder 4 in the spiral pipe 36, and take away the heat on the heating cylinder 4, thereby realizing the safe water cooling of the heating cylinder 4.

[0072] The working principle of this device is as follows:

[0073] When the heat-conducting oil furnace is running normally, the flowing heat-conducting oil drives the driving impeller 21 to rotate. The rotation of the driving impeller 21 causes the rotating pipe 20 to rotate. The rotation of the rotating pipe 20 drives the air blowing pipe 13 to rotate through the acceleration of the gearbox 22. In this way, when the equipment is running normally, the air blowing pipe 13 can rotate at a low speed to ensure that the heating cylinder 4 can always be within the normal temperature range and protect the long-term operation of the equipment.

[0074] When the equipment stops operating, the controller controls the push rod 34 to separate the first chuck 25 and the second chuck 31. Then the solenoid valve 47 is opened, and the high-pressure gas rushes into the air inlet pipe 54 from the release pipe 46. Subsequently, it blows the wind wheel 52 into the storage box 57. Then the rotation of the wind wheel 52 drives the rotation of the rotating shaft 51. The rotation of the rotating shaft 51 drives the rotation of the driving gear 53. The rotation of the driving gear 53 drives the rotation of the rotating ring 14 through the power gear ring 17, thereby driving the air blowing pipe 13 to rotate at a high speed.

[0075] When high-pressure gas enters the air inlet pipe 54, a part of the high-pressure gas will enter the shunt pipe 55 and then into the piston pipe 41, and then the piston rod 42 is pushed out. The movement of the piston rod 42 drives the transmission rack 43 to move. The movement of the transmission rack 43 meshes with the transmission gear 39 to open the liquid inlet ball valve 38 at the water inlet end 37. Subsequently, the controller of the control cabinet controls the water pump in the water storage tank 44 to pump the cooling water from the water inlet end 37 into the spiral pipe 36, and then back to the water storage tank 44 from the water outlet end 40. This cycle is repeated, so that the cooling water can complete heat exchange with the heating cylinder 4 in the spiral pipe 36 and take away the heat on the heating cylinder 4. Thus, through the combined cooling of the above-mentioned water cooling and air cooling, the heating cylinder 4 can be safely cooled in a short time after the equipment stops working, ensuring the long-term use of the equipment.

[0076] It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principle of the present invention. However, the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. An electrically heated thermal oil furnace, comprising a frame, a circulating oil pump and a control cabinet; characterized in that: Also includes: A heating unit, the heating unit comprising a supporting transverse plate arranged on the frame, a first side plate and a second side plate arranged at two ends of the bottom of the supporting transverse plate, a heating cylinder arranged on the first side plate and the second side plate, and a heater arranged in the heating cylinder; a liquid inlet pipe and a liquid outlet pipe are respectively arranged at two ends of the heating cylinder; A cooling unit, the cooling unit comprising a temperature control mechanism, a cut-off mechanism, a cooling mechanism and a blast pipe rotatably arranged on the periphery of the heating cylinder; the cooling mechanism comprises a spiral pipe arranged on the outer wall of the heating cylinder and a water storage tank arranged on the supporting horizontal plate, the spiral pipe is used for circulating cooling water in the water storage tank; wherein the cut-off mechanism selectively controls one of the temperature control mechanism and the cooling mechanism to drive the blast pipe to rotate; The cooling unit further includes a first rotating bracket disposed on the first side plate and a second rotating bracket fixedly disposed on the second side plate, and the blast pipe includes two rotating rings and a plurality of blades; and One of the rotating rings is rotatably disposed on the first rotating bracket, the other rotating ring is rotatably disposed on the second rotating bracket, and the plurality of blades are disposed between the two rotating rings at intervals in a ring shape; The temperature control mechanism further includes a transfer tube coaxial with the liquid inlet tube and connected to the first side plate, a rotating tube rotatably disposed between the transfer tube and the liquid inlet tube, and a driving impeller disposed in the rotating tube, wherein the rotating tube is transmission-connected to the blast tube; The temperature control mechanism also includes a gearbox disposed on the first side plate; The gearbox has an input shaft and an output shaft, the input shaft is drivingly connected to the rotating tube, and the output shaft is drivingly connected to a rotating ring installed on the first rotating bracket; The cutting mechanism includes a bearing bracket fixedly arranged on the gearbox, a bearing shaft rotatably arranged on the bearing bracket, a driving pulley and a top ring arranged on the bearing shaft, a transmission sleeve coaxially keyed with the bearing shaft, a first chuck arranged on the output shaft, a second chuck arranged at the end of the transmission sleeve, a return spring sleeved on the transmission sleeve, a transmission pulley arranged on a rotating ring close to the first side plate, a push rod arranged beside the bearing bracket, and a push plate arranged on the telescopic shaft of the push rod; A transmission belt is arranged between the driving pulley and the transmission pulley, one end of the push plate away from the push rod is rotatably connected to the transmission sleeve, one end of the return spring is connected to the top ring, and the other end is connected to the push plate; The cooling mechanism further includes a storage box disposed at one end of the heating cylinder close to the liquid outlet pipe, a release pipe and a return pipe disposed on the storage box, a mounting box disposed on the second side plate, a rotating shaft rotatably disposed in the mounting box, a driving gear disposed on the rotating shaft, a power gear ring disposed on a rotating ring close to the second side plate, a wind wheel rotatably disposed in the mounting box, a transfer box disposed on the second side plate, and a compressor fixedly disposed beside the transfer box; The installation box is provided with an air inlet pipe and an air outlet pipe, the wind wheel is coaxially fixedly connected to the rotating shaft, and the power ring gear is meshed with the driving gear; a pressure relief valve is provided on the storage box, the release pipe is connected with the air inlet pipe and a solenoid valve is provided on the release pipe, the air outlet pipe is connected with the interior of the transfer box, the inlet of the compressor is connected with the interior of the transfer box, and the outlet is connected with the return pipe.

2. The electrically heated thermal oil furnace according to claim 1, characterized in that: The heater comprises a heating plate arranged at one end of the heating cylinder close to the liquid inlet pipe, a plurality of heat pipes spaced apart on the heating plate, and a plurality of supporting partitions spaced apart on the inner wall of the heating cylinder along the axial length direction of the heating cylinder; A plurality of plum blossom holes are arranged at intervals on the supporting partition, and the plum blossom holes correspond to the heat pipes one by one.

3. The electrically heated thermal oil furnace according to claim 2, characterized in that: The plurality of heat pipes are distributed in a matrix with equal intervals; and / or the plurality of plum blossom holes are distributed in a matrix with equal intervals.

4. An electrically heated thermal oil furnace according to any one of claims 1 to 3, characterized in that: The spiral pipe is provided with a water outlet at one end close to the first side plate, and a water inlet at one end close to the second side plate; The water inlet end is provided with a liquid inlet ball valve, and the control shaft of the liquid inlet ball valve is provided with a transmission gear.

5. The electrically heated thermal oil furnace according to claim 4, characterized in that: The cooling mechanism further comprises a piston tube disposed on the second side plate, a piston rod elastically slidably disposed in the piston tube, and a transmission rack disposed on the piston rod; The transmission rack is meshed with the transmission gear, a shunt pipe is arranged on the air inlet pipe, the shunt pipe is connected to the piston pipe, and the water inlet end and the water outlet end are both connected to the inside of the water storage tank.

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