Cooling device for thermal insulation pipe production and cooling method thereof

Abstract

The invention discloses a cooling device for thermal insulation pipe production and a cooling method thereof, and relates to the technical field of cooling devices for thermal insulation pipe production, the cooling device comprises a main box body, a modular cooling assembly and a conveying roller, the conveying roller is fixedly installed on the side face of the inner wall of the main box body, and the modular cooling assembly is fixedly installed on the inner wall of the main box body; and the modularized cooling assembly is used for cooling the thermal insulation pipe conveyed on the conveying rollers. By installing the modular cooling assembly, the gradient cooling function on the thermal insulation pipe is achieved, the problem that a common cooling device cannot conduct graded cooling on the thermal insulation pipe is solved, the cooling effect is improved, and the cooling efficiency and the production quality of the thermal insulation pipe are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling devices for the production of insulating pipes, and particularly to a cooling device for the production of insulating pipes and a cooling method therefor. Background Art

[0002] During the production of insulating pipes, after high-temperature forming, the insulating pipes need to be cooled so that they can be cut and other processes can be carried out after they are restored to room temperature. In traditional cooling processes, the cooling devices used are mostly one-time water cooling or air cooling. In the process of one-time rapid cooling, due to different cooling times, positions, and insulating pipe specifications, the cooling and temperature reduction rates are often inconsistent, resulting in problems such as local high temperature of the insulating pipes and accumulation of internal stress, causing deformation and bending, which seriously affects the production efficiency and quality of insulating pipes.

[0003] Patent CN108842049B discloses a device for internally high-pressure forming high-plastic steel pipes. The above patent realizes the reduction of oxide scale on the surface of steel pipes.

[0004] By arranging a heat preservation device between the intermediate frequency induction heater and the cooling device, the above patent produces steel pipes with less oxide scale on the surface and better structural strength of the steel pipes, but it cannot perform gradient cooling on the insulating pipes, resulting in problems such as incomplete cooling, deformation and bending, and accumulation of thermal stress caused by one-time cooling.

[0005] Therefore, the present application proposes a cooling device for the production of insulating pipes and a cooling method therefor that can achieve gradient cooling of insulating pipes. Summary of the Invention

[0006] The purpose of the present invention is to provide a cooling device for the production of insulating pipes and a cooling method therefor, so as to solve the technical problems of incomplete cooling, deformation and bending, and accumulation of thermal stress caused by one-time cooling of insulating pipes as mentioned in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A cooling device for the production of insulating pipes, including a main box body, a modular cooling component, and a conveying roller. The conveying roller is fixedly installed on the side surface of the inner wall of the main box body, and the modular cooling component is fixedly installed on the inner wall of the main box body. The modular cooling component is used to cool the insulating pipes conveyed on the conveying roller;

[0008] The modular cooling component includes: a cold conveying component, a spraying component, and an internal heat dissipation component;

[0009] The cold conveying component performs primary heat conduction cooling on the insulating pipes through a heat-conducting medium in the conveying roller. The spraying component performs secondary all-round cooling and temperature reduction on the insulating pipes through petal-shaped spray nozzles installed on the top of the inner wall of the main box body. The internal heat dissipation component dissipates heat and shapes the inner pipe of the insulating pipe through telescopic tanning rods;

[0010] The modular cooling component performs gradient heat dissipation and internal and external shaping on the heat-insulating pipe.

[0011] Preferably, a cold transfer component is fixedly installed on the side of the inner wall of the main chamber. The cold transfer component is used to transfer the heat-insulating pipe while performing the first cooling and temperature reduction.

[0012] The cold transfer component includes: a first servo motor, a first rotating shaft, and a transfer roller.

[0013] A first servo motor is fixedly installed on the side of the outer wall of the main chamber. A first rotating shaft is fixedly installed on the side of the outer wall of the first servo motor. A transfer roller is fixedly sleeved on the side of the outer wall of the first rotating shaft. A plurality of transfer rollers are connected by a power belt. A hollow outer shell is fixedly installed on the outer wall of the transfer roller, and a flower thread groove is provided on the surface of the hollow outer shell.

[0014] Preferably, a base is fixedly installed on the bottom of the outer wall of the main chamber. A cooling chamber is fixedly installed on the bottom of the inner wall of the base. A first circulation pump is fixedly installed on the bottom of the inner wall of the cooling chamber. A filter screen cover is fixedly installed on the side of the outer wall of the first circulation pump. A delivery pipe is fixedly installed on the side of the outer wall of the first circulation pump. A cooling exchange tank is fixedly installed on the side of the outer wall of the base. Heat dissipation fin tubes and heat dissipation fins are installed on both the inner and outer walls of the cooling exchange tank for dissipating heat and cooling the cooling medium in the cooling exchange tank. A second circulation pump is fixedly installed on the bottom of the inner wall of the cooling exchange tank. A circulation pipe is fixedly installed on the top of the outer wall of the second circulation pump, and the circulation pipe is communicated with the hollow outer shell fixedly installed on the outer wall of the transfer roller through a rotating flexible hose.

[0015] Preferably, a spray component is fixedly installed on the top of the main chamber. The spray component is used to perform secondary cooling and temperature reduction on the heat-insulating pipe.

[0016] The spray component includes: a circulation tank, a booster pump, and a petal spray nozzle.

[0017] A circulation tank is fixedly installed on the top of the outer wall of the main chamber, and both sides of the circulation tank are communicated with the circulation pipe. A booster pump is fixedly installed on the bottom of the inner wall of the circulation tank. A fixing frame is fixedly installed on the top of the inner wall of the main chamber. A petal spray nozzle is fixedly installed on the bottom of the outer wall of the fixing frame, and the petal spray nozzle is communicated with the output port of the booster pump.

[0018] Preferably, an air knife component is fixedly installed on the top of the main chamber. The air knife component is used to shield the water mist generated during the spraying process and accelerate the heat dissipation rate.

[0019] The air knife component includes: an air inlet box, a high-speed fan, and an air curtain channel.

[0020] At the top of the outer wall of the main compartment, an air inlet box is fixedly installed. At the top of the inner wall of the main compartment, a mounting rack is fixedly installed. At the bottom of the outer wall of the mounting rack, a second servo motor is fixedly installed. At the top of the outer wall of the second servo motor, a high-speed blower is fixedly connected through a second rotating shaft. At the bottom of the outer wall of the mounting rack, an air curtain track is fixedly installed.

[0021] Preferably, a dynamic rolling component is fixedly installed on the side of the inner wall of the main compartment. The dynamic rolling component is used to cooperate with the cold conveying component to convey and roll and shape the insulating pipe.

[0022] The dynamic rolling component includes: a magnetic track, a first magnetic clamping seat, and a pressing roller.

[0023] On the side of the inner wall of the main compartment, a positioning rack is fixedly installed. On the side of the outer wall of the positioning rack, a magnetic track is fixedly installed. On the outer wall of the magnetic track, a first magnetic clamping seat is movably installed. On the side of the outer wall of the first magnetic clamping seat, a fixed shaft is fixedly installed. A pressing roller is movably sleeved on the outer wall of the fixed shaft. The pressing roller and the conveying roller are arranged in an M shape.

[0024] Preferably, a second magnetic clamping seat is fixedly installed on the side of the outer wall of the magnetic track. On the side of the outer wall of the second magnetic clamping seat, an inner heat dissipation component is fixedly installed. The inner heat dissipation component is used to dissipate heat and straighten the inside of the insulating pipe.

[0025] The inner heat dissipation component includes: a third circulating pump, a telescopic straightening rod, and a rotating flexible hose.

[0026] On the side of the outer wall of the second magnetic clamping seat, a third circulating pump is fixedly installed. The third circulating pump is communicated with the circulating pipe through a rotating flexible hose. On the side of the outer wall of the third circulating pump, a telescopic straightening rod controlled by a hydraulic pump is fixedly installed. And the output port of the third circulating pump is communicated with the inner cavity of the telescopic straightening rod.

[0027] Preferably, a recovery orifice plate is fixedly installed on the top of the outer wall of the cooling chamber. And the cooling medium flows back into the cooling chamber through the recovery orifice plate.

[0028] Preferably, the cooling method includes the following steps:

[0029] S1. First, start the cold conveying component to convey the insulating pipe into the cooling device. Start the first circulating pump and the second circulating pump to convey the cooling medium in the cooling chamber into the hollow outer shell. The rolling hollow outer shell contacts the insulating pipe to perform preliminary cooling on the insulating pipe.

[0030] S2. Then, start the spraying component to spray the cooling medium downward from above to perform secondary cooling on the surface of the insulating pipe.

[0031] S3. Then, start the inner heat dissipation component to cool down the inside of the insulating pipe.

[0032] S4. Finally, start the dynamic rolling component to perform shaping treatment on the insulating pipe.

[0033] Preferably, the cooling method further includes the following steps:

[0034] S21. Simultaneously start the air knife assembly to form a stable air curtain barrier from top to bottom, blocking the cooling medium sprayed from splashing onto the insulation pipes in other areas. At the same time, the air curtain accelerates air circulation and the cooling rate;

[0035] S31. While performing internal heat dissipation, through the reciprocating telescoping of the telescopic tanning rod, internally straighten the insulation pipe to ensure that the insulation pipe does not shrink internally.

[0036] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0037] 1. By installing a modular cooling assembly, the present invention realizes the gradient cooling function for the insulation pipe, solves the problem that ordinary cooling devices cannot perform hierarchical cooling on the insulation pipe, improves the cooling effect, improves the cooling efficiency and the production quality of the insulation pipe;

[0038] 2. By installing a dynamic rolling assembly, the present invention realizes the rolling and shaping function for the insulation pipe, solves the problem of deformation caused by the internal and external temperature difference during the cooling process, improves the production quality of the insulation pipe, and reduces the defective product rate;

[0039] 3. By installing an air knife assembly, the present invention realizes the sputtering protection function for the cooling medium, ensures the stage of gradient cooling, solves the problem of abnormal cooling of the insulation pipes at the front and rear ends caused by the sputtering of the cooling medium, enables the insulation pipe to meet the requirements of the cooling gradient, and improves the production quality;

[0040] 4. By installing an internal heat dissipation assembly, the present invention realizes the internal cooling and straightening functions for the insulation pipe, solves the problems of deformation and bending of the insulation pipe caused by the internal and external temperature difference and the accumulation of thermal stress, improves the cooling effect, and improves the production quality of the insulation pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is the front view structural schematic diagram of the present invention;

[0042] Figure 2 is the structural schematic diagram of the dynamic rolling assembly of the present invention;

[0043] Figure 3 is the structural schematic diagram of the spraying assembly of the present invention;

[0044] Figure 4 is the structural schematic diagram of the positioning frame of the present invention;

[0045] Figure 5 is the structural schematic diagram of the air knife assembly of the present invention;

[0046] Figure 6 Schematic diagram of the conveying roller structure of the present invention;

[0047] Figure 7 Schematic diagram of the internal heat dissipation component structure of the present invention;

[0048] Figure 8 Schematic diagram of the cooling bin structure of the present invention.

[0049] In the figure: 1, main box body; 2, base; 3, cooling exchange tank; 4, circulation pipe; 5, air inlet box; 6, circulation tank; 7, conveying roller; 8, positioning frame; 9, pressure roller; 10, first rotating shaft; 11, second circulation pump; 12, booster pump; 13, fixing frame; 14, petal spray nozzle; 15, cooling bin; 16, second rotating shaft; 17, fixed shaft; 18, magnetic track; 19, first magnetic clamping seat; 20, mounting frame; 21, high-speed fan; 22, second servo motor; 23, air curtain channel; 24, hollow outer shell; 25, flower thread groove; 26, second magnetic clamping seat; 27, third circulation pump; 28, telescopic tanning rod; 29, first servo motor; 30, recovery orifice plate; 31, first circulation pump; 32, filter screen; 33, conveying pipe. Specific embodiments

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 and Figure 8 , an embodiment provided by the present invention: a cooling device for the production of heat-insulating pipes, including a main box body 1, a modular cooling component, and a conveying roller 7. The conveying roller 7 is fixedly installed on the inner side surface of the inner wall of the main box body 1, and the modular cooling component is fixedly installed on the inner wall of the main box body 1. The modular cooling component is used to cool the heat-insulating pipes conveyed on the conveying roller 7;

[0054] The modular cooling component includes: a cold conveying component, a spraying component, and an internal heat dissipation component;

[0055] The cold conveying component cools the heat-insulating pipes through the heat-conducting medium inside the conveying roller 7 by means of primary heat conduction. The spraying component cools the heat-insulating pipes in all directions through the petal-shaped spray nozzles 14 installed on the top of the inner wall of the main box body 1. The internal heat dissipation component dissipates heat from and shapes the inner pipe of the heat-insulating pipes through the telescopic tanning rod 28;

[0056] The modular cooling component performs gradient heat dissipation and internal and external shaping on the heat-insulating pipes;

[0057] Furthermore, in this design, the produced heat-insulating pipes are cooled down in a three-stage manner through a modular cooling component. Among them, the cold transfer component is used to convey the heat-insulating pipes on the conveying roller 7, and at the same time, the heat-insulating pipes are initially cooled by contact heat conduction through the conveying roller 7, ensuring rapid initial cooling after the heat-insulating pipes are output from the production line, regulating the temperature of the heat-insulating pipes, and preventing the high-temperature heat-insulating pipes from reacting with impurities in the air and adsorbing impurities at high temperatures; then the conveying roller 7 conveys the initially cooled heat-insulating pipes to the spraying area, and the spraying component is started to perform secondary cooling on the surface of the heat-insulating pipes, so that the heat-insulating pipes are further cooled down to prevent the problem of thermal deformation of the heat-insulating pipes; finally, the conveying roller 7 conveys the heat-insulating pipes to the internal heat dissipation component, and the telescopic tanning rod 28 in the internal heat dissipation component is used to expand and straighten the inner lumen of the heat-insulating pipe, and at the same time, the internal part of the heat-insulating pipe is cooled by using a cooling medium. On the one hand, it prevents the accumulation of internal stress due to excessive temperature difference between the inside and outside of the heat-insulating pipe, and on the other hand, it solves the problems of shrinkage and bending of the inside of the heat-insulating pipe caused by temperature changes during the cooling process, ensuring that the composite production quality standard of the heat-insulating pipe is met; through gradient heat dissipation cooling and shaping treatment, the problems of bending, shrinkage and internal thermal stress accumulation of the heat-insulating pipe caused by too high temperature and large temperature difference between the inside and outside of the heat-insulating pipe are solved, and the quality and production standard of the heat-insulating pipe are improved.

[0058] Please refer to Figure 2 、 Figure 3 and Figure 6 For an embodiment provided by the present invention: A cooling device for producing heat-insulating pipes, a cold transfer component is fixedly installed on the inner side surface of the main box body 1, and the cold transfer component is used for conveying the heat-insulating pipes and performing the first cooling and temperature reduction at the same time;

[0059] The cold transfer component includes: a first servo motor 29, a first rotating shaft 10 and a conveying roller 7;

[0060] The first servo motor 29 is fixedly installed on the outer side surface of the main box body 1, the first rotating shaft 10 is fixedly installed on the outer side surface of the first servo motor 29, the conveying roller 7 is fixedly sleeved on the outer side surface of the first rotating shaft 10, a plurality of conveying rollers 7 are connected by a power belt, and a hollow outer shell 24 is fixedly installed on the outer wall of the conveying roller 7, and a flower thread groove 25 is formed on the surface of the hollow outer shell 24;

[0061] A base 2 is fixedly installed at the bottom of the outer wall of the main box body 1. A cooling chamber 15 is fixedly installed at the bottom of the inner wall of the base 2. A first circulation pump 31 is fixedly installed at the bottom of the inner wall of the cooling chamber 15. A filter net cover 32 is fixedly installed on the side surface of the outer wall of the first circulation pump 31. A delivery pipe 33 is fixedly installed on the side surface of the outer wall of the first circulation pump 31. A cooling exchange tank 3 is fixedly installed on the side surface of the outer wall of the base 2. Heat dissipation fin tubes and heat dissipation fins are installed on both the inner and outer walls of the cooling exchange tank 3 for dissipating heat from the cooling medium in the cooling exchange tank 3. A second circulation pump 11 is fixedly installed at the bottom of the inner wall of the cooling exchange tank 3. A circulation pipe 4 is fixedly installed at the top of the outer wall of the second circulation pump 11, and the circulation pipe 4 is communicated with a hollow outer shell 24 fixedly installed on the outer wall of the conveying roller 7 through a rotating flexible hose;

[0062] Further, start the first servo motor 29. The first servo motor 29 drives the first rotating shaft 10 to rotate, and the first rotating shaft 10 drives the conveying roller 7 to rotate. The flower thread grooves 25 on the conveying roller 7 play a role in increasing the friction force, and the insulating pipe is transported in the cooling device; at the same time, the flower thread grooves 25 on the conveying roller 7 can also make the conveying roller 7 in full contact with the insulating pipe to ensure preliminary cooling during the rolling transportation process; start the first circulation pump 31. The first circulation pump 31 pumps the cooling medium in the cooling chamber 15 into the cooling exchange tank 3 through the delivery pipe 33. The second circulation pump 11 in the cooling exchange tank 3 is started. The second circulation pump 11 pumps the cooling medium into the hollow outer shell 24 on the conveying roller 7 through the circulation pipe 4 and the rotating flexible hose. The hollow outer shell 24 is in direct contact with the insulating pipe, and the insulating pipe is cooled and dissipated heat for the first time by using contact conduction of heat. At the same time, the flower thread grooves 25 increase the contact points between the hollow outer shell 24 and the insulating pipe, improving the heat conduction efficiency; the cooling medium that absorbs heat is recycled from the other side of the circulation pipe 4 back into the cooling exchange tank 3. The heat dissipation fin tubes and heat dissipation fins inside and outside the cooling exchange tank 3 increase the heat dissipation efficiency of the heat conduction between the cooling medium and the outside air, enabling the cooling medium to quickly take away the absorbed heat and improving the cooling efficiency of the insulating pipe; the cooling exchange tank 3 can not only play a role in dissipating heat and cooling down, but also play a role in continuously recycling the cooling resources, improving the heat dissipation efficiency while improving the resource utilization rate, saving costs and improving the economic benefits of production.

[0063] Please refer to Figure 3 and Figure 5 As shown in, an embodiment provided by the present invention: a cooling device for producing insulating pipes, a spraying assembly is fixedly installed on the top of the main box body 1, and the spraying assembly is used for secondary cooling and temperature reduction of the insulating pipe;

[0064] The spraying assembly includes: a circulation tank 6, a booster pump 12, and a petal spray nozzle 14;

[0065] At the top of the outer wall of the main box body 1, a circulation groove 6 is fixedly installed, and both sides of the circulation groove 6 are communicated with the circulation pipe 4. At the bottom of the inner wall of the circulation groove 6, a booster pump 12 is fixedly installed. At the top of the inner wall of the main box body 1, a fixing frame 13 is fixedly installed. At the bottom of the outer wall of the fixing frame 13, a petal spray nozzle 14 is fixedly installed, and the petal spray nozzle 14 is communicated with the output port of the booster pump 12;

[0066] At the top of the outer wall of the cooling bin 15, a recovery orifice plate 30 is fixedly installed, and the cooling medium flows back into the cooling bin 15 through the recovery orifice plate 30;

[0067] At the top of the main box body 1, an air knife assembly is fixedly installed, and the air knife assembly is used to shield the water mist generated during the spraying process and accelerate the heat dissipation rate;

[0068] The air knife assembly includes: an air inlet box 5, a high-speed fan 21 and an air curtain duct 23;

[0069] At the top of the outer wall of the main box body 1, an air inlet box 5 is fixedly installed. At the top of the inner wall of the main box body 1, an installation frame 20 is fixedly installed. At the bottom of the outer wall of the installation frame 20, a second servo motor 22 is fixedly installed. At the top of the outer wall of the second servo motor 22, a high-speed fan 21 is fixedly connected through a second rotating shaft 16. At the bottom of the outer wall of the installation frame 20, an air curtain duct 23 is fixedly installed;

[0070] Furthermore, the cooling medium in the cooling bin 15 is pumped into the circulation groove 6 through the circulation pipe 4. The booster pump 12 is started, and the booster pump 12 pumps the cooling medium in the circulation groove 6 into the petal spray nozzle 14 under pressure. Through the petal spray nozzle 14, spray cooling is formed. The atomized cooling medium droplets are evenly sprayed onto the surface of the heat preservation pipe. The cooling medium absorbs the heat of the heat preservation pipe, and the rotating heat preservation pipe can contact the cooling medium in all directions, improving the cooling effect, ensuring uniform cooling, and preventing the accumulation of thermal stress caused by local overheating due to local cooling, resulting in substandard quality of the heat preservation pipe; The sprayed cooling medium droplets fall onto the recovery orifice plate 30 and are recycled back into the cooling bin 15 for circulating cooling, improving the material utilization rate and saving resources;

[0071] During the spraying process, to prevent the atomized droplets of the cooling medium from splashing onto the preliminary cooling section at the front end of the spraying and the insulating pipes undergoing the third cooling stage, causing local temperature unevenness in the insulating pipes, affecting the gradient cooling process of the insulating pipes, resulting in the retention of internal stress in the insulating pipes or the existence of internal and external temperature differences leading to easy fracture of the insulating pipes, the second servo motor 22 is started. The second servo motor 22 drives the second rotating shaft 16 to rotate, and the second rotating shaft 16 drives the high-speed blower 21 to rotate. The high-speed blower 21 blows the air in the air inlet box 5 through the air curtain duct 23, and a stable air curtain barrier is formed under the air curtain duct 23. On the one hand, it can prevent the atomized droplets of the cooling medium from splashing onto other insulating pipes, and on the other hand, it can accelerate the reflux recovery of the cooling medium and the cooling efficiency of the wind force through the air curtain; the air curtain barrier ensures good execution of the gradient cooling and temperature reduction in the cooling device, prevents the problem of cooling interference, and improves the cooling effect.

[0072] Please refer to Figure 2 、 Figure 4 and Figure 6 and

[0073] The dynamic rolling component includes: a magnetic track 18, a first magnetic clamping seat 19, and a pressing roller 9;

[0074] A positioning frame 8 is fixedly installed on the inner wall side of the main box body 1. A magnetic track 18 is fixedly installed on the outer wall side of the positioning frame 8. A first magnetic clamping seat 19 is movably installed on the outer wall of the magnetic track 18. A fixed shaft 17 is fixedly installed on the outer wall side of the first magnetic clamping seat 19. A pressing roller 9 is movably sleeved on the outer wall of the fixed shaft 17. The pressing roller 9 and the conveying roller 7 are arranged in an M shape;

[0075] The inner wall side of the main box body 1 is fixedly installed with a cold conveying component, and the cold conveying component is used for conveying the insulating pipe and performing the first cooling and temperature reduction at the same time;

[0076] The cold conveying component includes: a first servo motor 29, a first rotating shaft 10, and a conveying roller 7;

[0077] A first servo motor 29 is fixedly installed on the outer wall side of the main box body 1. A first rotating shaft 10 is fixedly installed on the outer wall side of the first servo motor 29. A conveying roller 7 is fixedly sleeved on the outer wall side of the first rotating shaft 10. A plurality of conveying rollers 7 are connected by a power belt. A hollow outer shell 24 is fixedly installed on the outer wall of the conveying roller 7, and a flower thread groove 25 is formed on the surface of the hollow outer shell 24;

[0078] Furthermore, a heat-insulating pipe after secondary cooling is conveyed between the pressing rollers 9 arranged in an M shape and the conveying rollers 7. When the heat-insulating pipe is conveyed to the rear end of modular cooling, the distance between the pressing rollers 9 and the conveying rollers 7 is controlled and adjusted according to the specification size parameters of the produced heat-insulating pipe through the PLC control system. The energizing current of the magnetic track 18 is changed through the PLC control system, the magnetic field thrust direction of the magnetic track 18 is changed, the first magnetic card seat 19 on the magnetic track 18 is adjusted, and the first magnetic card seat 19 drives the fixed shaft 17 and the pressing roller 9 to realize the up and down movement of the pressing roller 9, thereby changing the distance between the pressing roller 9 and the conveying roller 7 to adapt to the production requirements of heat-insulating pipes of different specifications. The rolling between the pressing roller 9 and the conveying roller 7 ensures that the middle heat-insulating pipe is horizontally straight axially under the extrusion and rolling of the pressing roller 9 and the conveying roller 7. The continuously changing distance between the pressing roller 9 and the conveying roller 7 enables the pressing roller 9 and the conveying roller 7 arranged in an M shape to continuously roll and extrude the heat-insulating pipe, so that the heat-insulating pipe that is not completely cooled and shaped can be rolled to a horizontal straightness of 0 during the cooling process, ensuring that the heat-insulating pipe will not collapse and deform due to the accumulation of thermal stress; at the same time, the rolling process makes the heat conduction between the conveying roller 7 and the heat-insulating pipe more complete, ensuring the cooling efficiency.

[0079] Please refer to Figure 2 and Figure 7 As shown in

[0080] The dynamic rolling assembly includes: a magnetic track 18, a first magnetic card seat 19, and a pressing roller 9;

[0081] A positioning frame 8 is fixedly installed on the side wall of the inner wall of the main box body 1. A magnetic track 18 is fixedly installed on the side wall of the outer wall of the positioning frame 8. A first magnetic card seat 19 is movably installed on the outer wall of the magnetic track 18. A fixed shaft 17 is fixedly installed on the side wall of the outer wall of the first magnetic card seat 19. A pressing roller 9 is movably sleeved on the outer wall of the fixed shaft 17. The pressing roller 9 and the conveying roller 7 are arranged in an M shape;

[0082] A second magnetic card seat 26 is fixedly installed on the side wall of the outer wall of the magnetic track 18. An internal heat dissipation assembly is fixedly installed on the side wall of the outer wall of the second magnetic card seat 26. The internal heat dissipation assembly is used for dissipating heat and straightening the inside of the heat-insulating pipe;

[0083] The internal heat dissipation assembly includes: a third circulation pump 27, a telescopic straightening rod 28, and a rotating flexible hose;

[0084] A third circulation pump 27 is fixedly installed on the side wall of the outer wall of the second magnetic card seat 26. The third circulation pump 27 is communicated with the circulation pipe 4 through a rotating flexible hose. A telescopic straightening rod 28 controlled by a hydraulic pump is fixedly installed on the side wall of the outer wall of the third circulation pump 27, and the output port of the third circulation pump 27 is communicated with the internal cavity of the telescopic straightening rod 28;

[0085] Furthermore, the energizing current of the magnetic track 18 is changed through the PLC control system to change the direction of the magnetic field thrust of the magnetic track 18, and the first magnetic clamping seat 19 on the magnetic track 18 is adjusted. The first magnetic clamping seat 19 drives the fixed shaft 17 and the pressure roller 9 to realize the up and down movement of the pressure roller 9; the height of the second magnetic clamping seat 26 is synchronously changed so that the telescopic tanning rod 28 installed on the second magnetic clamping seat 26 can be aligned with the axis of the insulating pipe. According to the different specifications of the produced insulating pipes, after adjusting the height of the second magnetic clamping seat 26, the third circulation pump 27 is started. The third circulation pump 27 pumps the cooling medium into the internal cavity of the telescopic tanning rod 28 through the rotating flexible hose and the circulation pipe 4. At the same time, the hydraulic pump is started to control the telescopic tanning rod 28 to extend, and the telescopic tanning rod 28 is inserted into the insulating pipe. The inner layer of the insulating pipe contacts the surface of the telescopic tanning rod 28, and the heat in the insulating pipe is transferred to the telescopic tanning rod 28 through heat conduction, and the heat is taken away through the circulation of the cooling medium, realizing the cooling of the inside of the insulating pipe, reducing the temperature difference between the inside and outside of the insulating pipe, preventing the accumulation of internal thermal stress. At the same time, the telescopic tanning rod 28 is used to straighten the deformed insulating pipe, ensuring that the production specifications of the insulating pipe meet the standard parameters, preventing the insulating pipe from deforming, shrinking and breaking, and improving the production quality and production efficiency of the insulating pipe; the inner heat dissipation component realizes the cooling of the inside of the insulating pipe on the one hand, preventing the problem of shrinkage due to too large temperature difference between the inside and outside of the inner insulating pipe; on the other hand, it can shape the inside of the insulating pipe through the telescopic tanning rod 28, preventing the problem of complete deformation of the insulating pipe caused by thermal stress during the processing, and improving the working efficiency and product quality of the insulating pipe production.

[0086] Working principle: First, start the cold transfer component to convey the insulating pipe into the cooling device, and start the first circulation pump 31 and the second circulation pump 11 to convey the cooling medium in the cooling chamber 15 into the hollow outer shell 24. The rolling hollow outer shell 24 contacts the insulating pipe to perform preliminary cooling on the insulating pipe; start the dynamic rolling component to perform shaping treatment on the insulating pipe;

[0087] Then, start the spraying component to spray the cooling medium downward from top to bottom to perform secondary cooling on the surface of the insulating pipe, and at the same time cooperate with the air knife component to perform effective sputtering protection and wind cooling during the spraying process to accelerate the cooling rate;

[0088] Finally, start the inner heat dissipation component to cool the inside of the insulating pipe, and at the same time straighten the insulating pipe through the telescopic tanning rod 28.

[0089] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Thus, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A cooling device for the production of insulation pipes, comprising a main box body (1), a modular cooling component, and a conveying roller (7), characterized in that: On the side of the inner wall of the main box body (1), a conveying roller (7) is fixedly installed. A modular cooling component is fixedly installed on the inner wall of the main box body (1), and the modular cooling component is used to cool the heat preservation pipe conveyed on the conveying roller (7). The modular cooling component includes: a cold conveying component, a spraying component, and an internal heat dissipation component; The cold conveying component conducts primary heat conduction cooling on the heat preservation pipe through the heat-conducting medium in the conveying roller (7). The spraying component conducts secondary all-round cooling on the heat preservation pipe through the petal spray nozzles (14) installed on the top of the inner wall of the main box body (1). The internal heat dissipation component dissipates heat and shapes the inner pipe of the heat preservation pipe through the telescopic tanning rod (28). The modular cooling component conducts gradient heat dissipation and internal and external shaping on the heat preservation pipe.

2. The cooling device for producing heat-insulating pipes according to claim 1, wherein: On the side of the inner wall of the main box body (1), a cold conveying component is fixedly installed, and the cold conveying component is used to convey the heat preservation pipe and conduct the first cooling at the same time; The cold conveying component includes: a first servo motor (29), a first rotating shaft (10), and a conveying roller (7); On the side of the outer wall of the main box body (1), a first servo motor (29) is fixedly installed. On the side of the outer wall of the first servo motor (29), a first rotating shaft (10) is fixedly installed. A conveying roller (7) is fixedly sleeved on the side of the outer wall of the first rotating shaft (10). Between several conveying rollers (7), they are connected by a power belt. A hollow outer shell (24) is fixedly installed on the outer wall of the conveying roller (7), and a flower thread groove (25) is formed on the surface of the hollow outer shell (24).

3. A cooling device for the production of heat-insulating pipes according to claim 2, characterized in that: At the bottom of the outer wall of the main box body (1), a base (2) is fixedly installed. At the bottom of the inner wall of the base (2), a cooling bin (15) is fixedly installed. At the bottom of the inner wall of the cooling bin (15), a first circulating pump (31) is fixedly installed. On the side of the outer wall of the first circulating pump (31), a filter screen cover (32) is fixedly installed. On the side of the outer wall of the first circulating pump (31), a conveying pipe (33) is fixedly installed. On the side of the outer wall of the base (2), a cooling exchange tank (3) is fixedly installed. Heat dissipation fins and heat dissipation fins are installed on both the inner and outer walls of the cooling exchange tank (3) to dissipate heat from the cooling medium in the cooling exchange tank (3). At the bottom of the inner wall of the cooling exchange tank (3), a second circulating pump (11) is fixedly installed. On the top of the outer wall of the second circulating pump (11), a circulating pipe (4) is fixedly installed, and the circulating pipe (4) is communicated with the hollow outer shell (24) fixedly installed on the outer wall of the conveying roller (7) through a rotating flexible hose.

4. A cooling device for the production of heat-insulating pipes according to claim 1, characterized in that: On the top of the main box body (1), a spraying component is fixedly installed, and the spraying component is used to conduct secondary cooling on the heat preservation pipe; The spraying component includes: a circulating tank (6), a booster pump (12), and petal spray nozzles (14); On the top of the outer wall of the main box body (1), a circulating tank (6) is fixedly installed, and both sides of the circulating tank (6) are communicated with the circulating pipe (4). At the bottom of the inner wall of the circulating tank (6), a booster pump (12) is fixedly installed. On the top of the inner wall of the main box body (1), a fixing frame (13) is fixedly installed. At the bottom of the outer wall of the fixing frame (13), petal spray nozzles (14) are fixedly installed, and the petal spray nozzles (14) are communicated with the output port of the booster pump (12).

5. The cooling device for the production of heat-insulating pipes according to claim 4, characterized in that: A air knife assembly is fixedly installed on the top of the main box body (1). The air knife assembly is used to shield the water mist generated during the spraying process and accelerate the heat dissipation rate; The air knife assembly includes: an air inlet box (5), a high-speed fan (21) and an air curtain line channel (23); The air inlet box (5) is fixedly installed on the top of the outer wall of the main box body (1). The mounting bracket (20) is fixedly installed on the top of the inner wall of the main box body (1). The second servo motor (22) is fixedly installed at the bottom of the outer wall of the mounting bracket (20). The high-speed fan (21) is fixedly connected to the top of the outer wall of the second servo motor (22) through the second rotating shaft (16). The air curtain line channel (23) is fixedly installed at the bottom of the outer wall of the mounting bracket (20).

6. The cooling device for the production of heat-insulating pipes according to claim 2, characterized in that: A dynamic rolling assembly is fixedly installed on the side of the inner wall of the main box body (1). The dynamic rolling assembly is used to cooperate with the cold transmission assembly to convey and roll and shape the insulating pipe; The dynamic rolling assembly includes: a magnetic rail (18), a first magnetic clamping seat (19) and a pressing roller (9); A positioning frame (8) is fixedly installed on the side of the inner wall of the main box body (1). The magnetic rail (18) is fixedly installed on the side of the outer wall of the positioning frame (8). The first magnetic clamping seat (19) is movably installed on the outer wall of the magnetic rail (18). The fixed shaft (17) is fixedly installed on the side of the outer wall of the first magnetic clamping seat (19). The pressing roller (9) is movably sleeved on the outer wall of the fixed shaft (17). The pressing roller (9) and the conveying roller (7) are arranged in an M shape.

7. The cooling device for producing heat-insulating pipes according to claim 6, characterized in that: A second magnetic clamping seat (26) is fixedly installed on the side of the outer wall of the magnetic rail (18). An internal heat dissipation assembly is fixedly installed on the side of the outer wall of the second magnetic clamping seat (26). The internal heat dissipation assembly is used to dissipate heat and straighten the inside of the insulating pipe; The internal heat dissipation assembly includes: a third circulating pump (27), a telescopic straightening rod (28) and a rotating flexible hose; The third circulating pump (27) is fixedly installed on the side of the outer wall of the second magnetic clamping seat (26). The third circulating pump (27) is communicated with the circulating pipe (4) through the rotating flexible hose. The telescopic straightening rod (28) controlled by a hydraulic pump is fixedly installed on the side of the outer wall of the third circulating pump (27). And the output port of the third circulating pump (27) is communicated with the internal cavity of the telescopic straightening rod (28).

8. The cooling device for producing heat-insulating pipes according to claim 3, characterized in that: A recovery orifice plate (30) is fixedly installed on the top of the outer wall of the cooling chamber (15). And the cooling medium flows back into the cooling chamber (15) through the recovery orifice plate (30).

9. A cooling method for the production of thermal insulation pipes, applicable to the cooling device for the production of thermal insulation pipes described in any one of claims 1-8, characterized in that: The cooling method includes the following steps: S1. First, start the cold transmission assembly to convey the insulating pipe into the cooling device. Start the first circulating pump (31) and the second circulating pump (11) to convey the cooling medium in the cooling chamber (15) into the hollow outer shell (24). The rolling hollow outer shell (24) contacts the insulating pipe to perform preliminary cooling on the insulating pipe; S2. Then, start the spraying assembly to spray the cooling medium downward from top to bottom to perform secondary cooling on the surface of the insulating pipe; S3. Then, start the internal heat dissipation assembly to cool the inside of the insulating pipe; S4. Finally, start the dynamic rolling assembly to perform shaping treatment on the insulating pipe.

10. A cooling method for the production of thermal insulation pipes according to claim 9, characterized in that: The cooling method further includes the following steps: S21. Simultaneously start the air knife assembly to form a stable air curtain barrier from top to bottom, blocking the cooling medium sprayed from splashing onto the insulation pipes in other areas. At the same time, the air curtain accelerates air circulation and the cooling rate. S31. While performing internal heat dissipation, the insulation pipe is internally straightened by the reciprocating telescopic movement of the telescopic tanning rod (28) to ensure that there is no internal shrinkage in the insulation pipe.

Images