Insulation layer forming device and forming method of wound high temperature resistant insulation pipe

Abstract

The present invention relates to the technical field of thermal insulation pipe insulation layer production, in particular to a thermal insulation layer forming device and a forming method for a wound high-temperature resistant thermal insulation pipe, comprising a steel pipe, a bracket and a pretreatment module; a pretreatment module for surface treatment of the steel pipe is installed on the top of the bracket; a placement rack is provided on one side of the bracket, and a spray forming module for spray forming the steel pipe is installed above the placement rack; the present invention installs a pretreatment module on the outer side of the steel pipe, and a guide cover inside the pretreatment module can serve as a guide to ensure that the steel pipe enters stably, and the steel pipe surface treatment mechanism is provided to clean the outer surface of the steel pipe, and the steel pipe surface preheating mechanism is provided to preheat the outer surface of the steel pipe, and the steel pipe surface detection equipment can perform flaw detection on the outer surface of the steel pipe to ensure the quality of the steel pipe and the purpose of spraying the subsequent thermal insulation layer.

Description

Technical Field

[0001] The invention relates to the technical field of manufacturing an insulation layer of an insulation pipe, and in particular to an insulation layer forming device and a forming method of a wound high-temperature resistant insulation pipe. Background Art

[0002] The wound high temperature resistant insulation pipe is a highly efficient insulation pipe. It uses a winding process to tightly fit the high temperature resistant material on the pipe surface. This insulation pipe has excellent high temperature resistance and can maintain the stability and safety of the pipe in a high temperature environment. It is mainly composed of prefabricated steel pipes as the base material and polyurethane as the insulation material. It has good anti-corrosion and insulation effects, can effectively reduce the heat loss of the pipeline transportation medium, and improve energy utilization efficiency. In addition, the wound high temperature resistant insulation pipe is light in weight, high in rigidity, easy to install, easy to maintain and replace, and has been widely used in petrochemical, electric power, urban heating and other fields.

[0003] When the insulation pipe is made, the spray gun does not move, and the steel pipe moves at a constant speed on a rotating tug with a certain angle. The spray gun evenly sprays the polyurethane raw material on the spirally moving steel pipe. The polyurethane foam takes shape after rising for a certain period of time. At this time, the insulation layer is completed. Then, the polyethylene winding process is carried out. The steel pipe sprayed with the polyurethane insulation layer is rotated at a constant speed, and the molten polyethylene sheet is superimposed and wound on the outside of the insulation layer at a certain pitch to form an outer protective shell layer. The insulation pipe product is obtained by cooling with well water.

[0004] When spraying polyurethane raw materials, the existing method is to directly make the steel pipe move at a uniform speed on a rotating tugboat with a certain angle, and then the steel pipe enters the inside of the spraying chamber, and the nozzle directly sprays the surface of the steel pipe. Since there is no surface treatment mechanism for the steel pipe, the subsequent spraying of polyurethane foam has poor spraying quality and foam detachment, resulting in waste of raw material foam. Secondly, during spraying, since there is no isolation mechanism, a large amount of polyurethane foam is attached to the spraying chamber. Over time, the foam rises and occupies the space of the spraying chamber, which will seriously affect the subsequent processing quality. Therefore, in view of the above problems, an insulation layer forming device and a forming method of a wrapped high-temperature resistant insulation pipe are proposed. Summary of the invention

[0005] The object of the present invention is to provide a device and method for forming a thermal insulation layer of a wound high-temperature resistant thermal insulation pipe, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: As an optional solution of the insulation layer forming device and forming method of the wound high temperature resistant thermal insulation pipe of the present invention, wherein: the insulation layer forming device and forming method of the wound high temperature resistant thermal insulation pipe include a steel pipe, a bracket and a pretreatment module; A pretreatment module for surface treatment of the steel pipe is installed on the top of the bracket; A placement rack is provided on one side of the bracket, and a spray molding module for spray molding the steel pipe is installed above the placement rack; The spray molding module includes a spray frame, a protective film and a spray device. The bottom of the spray frame is fixedly connected to the placement rack, a protective film is installed on one side of the spray frame, a spray device for spraying a thermal insulation layer on the steel pipe is installed inside the spray frame, and a protective mechanism fixedly connected to the spray frame is arranged below the spray device. A surface treatment mechanism for the thermal insulation layer for leveling the steel pipe after spraying is also installed on one side of the interior of the spray frame; The protective mechanism comprises a sliding sleeve and a guide plate, wherein the guide plate is slidably connected inside the sliding sleeve, and one end of the guide plate is fixedly connected to the spray frame, a handle is fixedly connected to one side of the guide plate, a connecting plate is fixedly connected above the guide plate, and the other end of the connecting plate is fixedly connected to the protective sleeve; The surface treatment mechanism of the thermal insulation layer includes a lifting mechanism and a support plate, the top of the lifting mechanism is fixedly connected to the lifting mechanism, the free end of the lifting mechanism is fixedly connected to the support plate, and the other end of the support plate is fixedly connected to a fixed frame, the interior of the fixed frame is fixedly connected to a second motor, and the end of the second motor main shaft is fixedly connected to a treatment roller.

[0007] As an optional solution of the insulation layer forming device and forming method of the wound high-temperature resistant insulation pipe of the present invention, the protective sleeve is arranged in a cylindrical shape, and the top of the protective sleeve is arranged to be open.

[0008] As an optional solution of the insulation layer forming device and forming method of the wound high-temperature resistant insulation pipe of the present invention, the outer side of the processing roller is arranged in an arc surface.

[0009] When spraying polyurethane raw materials, the existing method is to directly make the steel pipe move at a uniform speed on a rotating tugboat with a certain angle, and then the steel pipe enters the inside of the spray chamber, and the nozzle directly sprays the surface of the steel pipe. Due to the lack of a surface treatment mechanism for the steel pipe, the subsequent spraying of polyurethane foam has poor spraying quality, and there is a situation where the foam is detached, resulting in a waste of raw material foam. Secondly, during spraying, due to the lack of an isolation mechanism, a large amount of polyurethane foam is attached to the spray chamber. Over a long period of time, the foam will rise, which will seriously affect the quality of subsequent processing. When in use, a pretreatment module is installed on the outside of the steel pipe, and the guide cover inside the pretreatment module can play a guiding role to ensure that the steel pipe enters it stably, and the steel pipe surface treatment mechanism is set to clean the outer surface of the steel pipe, and the steel pipe surface preheating mechanism can preheat the outer surface of the steel pipe, and the steel pipe surface detection equipment can perform flaw detection on the outer surface of the steel pipe to ensure the quality of the steel pipe; The treated steel pipe enters the spray molding module. At this time, the spray equipment sprays the surface of the steel pipe, and the protective mechanism is set on the outside of the steel pipe. The polyurethane foam overflowed from the spraying will be located outside the protective mechanism and can be processed by being drawn out through the protective mechanism, which greatly reduces the possibility of polyurethane foam material gathering inside the spray chamber and ensures the normal spraying work. The surface treatment mechanism of the insulation layer can shape the insulation layer after spraying. The support plate is driven downward by the lifting mechanism. The processing roller moves downward under the action of the fixed frame and the second motor. The outer side of the processing roller contacts the insulation layer, and when the steel pipe moves spirally, the second motor drives the processing roller to rotate. At this time, the insulation layer on the outside of the steel pipe can be rolled and shaped to a certain extent to avoid local spraying bulges, which is convenient for the subsequent polyethylene sheet winding work.

[0010] As an optional scheme for the insulation layer forming device and forming method of the wound high-temperature resistant insulation pipe described in the present invention, the pretreatment module includes a processing frame, a steel pipe surface detection device and a guide cover, the top of the processing frame is fixedly connected to the steel pipe surface detection device, one end of the steel pipe surface detection device is installed with a detection head, one side of the processing frame is installed with a guide cover, and the interior of the processing frame is installed with a steel pipe surface treatment mechanism, a steel pipe surface preheating mechanism and a second collection frame.

[0011] As an optional scheme of the insulation layer forming device and forming method of the wound high-temperature resistant insulation pipe described in the present invention, the steel pipe surface treatment mechanism includes a mounting frame, a first motor and a driving gear, the outer side of the mounting frame is fixedly connected to the processing frame, the bottom of the mounting frame is fixedly connected to a protective frame, the inside of the mounting frame is fixedly connected to the first motor, the outer side of the main shaft of the first motor is fixedly connected to the driving gear, the outer side of the driving gear is meshed with a driven gear ring, and the inside of the driven gear ring is fixedly connected to evenly distributed cleaning brushes.

[0012] As an optional scheme of the insulation layer forming device and forming method of the wound high-temperature resistant insulation pipe described in the present invention, wherein: the outer side of the driven gear ring is slidably connected with a fixed ring, and the outer side of the fixed ring is fixedly connected to the protective frame.

[0013] As an optional solution of the insulation layer forming device and forming method of the wound high-temperature resistant insulation pipe of the present invention, the steel pipe surface preheating mechanism includes a bottom frame fixedly connected to the bottom of the guide sleeve, a hair dryer is installed inside the bottom frame, and an air inlet cover is arranged on the top of the hair dryer, the top of the air inlet cover is connected to a first air guide ring, one side of the first air guide ring is connected to a uniformly distributed inclined first air guide pipe, and the outer side of the air inlet cover is fixedly connected to the bottom frame; A second air guide ring is installed on the other side of the guide sleeve, one side of the second air guide ring is connected to a uniformly distributed second air guide duct, the bottom of the second air guide ring is connected to a connecting tube, the bottom of the connecting tube is connected to a first collecting frame, one side of the first collecting frame is connected to a return pipe, and the other end of the return pipe is connected to the hair dryer.

[0014] As an optional solution of the insulation layer forming device and forming method of the wound high-temperature resistant insulation pipe of the present invention, wherein: the first collecting frame is slidably connected to the inside of a sliding frame, and a filter screen is installed on one side of the sliding frame.

[0015] When the steel pipe is inserted into the protective frame, the first motor is started to drive the driving gear to rotate, and the driving gear drives the driven gear ring to rotate, and the driven gear ring drives the internal cleaning brush to rotate, and the cleaning brush can remove impurities from the outer surface of the steel pipe to ensure that the subsequent spraying is closely fitted; The impurities remaining on the outer surface of the treated steel pipe are blown by the first air guide pipe outside the first air guide ring to achieve the purpose of impurity removal, and the second air guide ring and the second air guide pipe on the other side are used for extraction, and the impurities can enter the sliding frame to achieve circulation, and the blower plays the purpose of blowing hot air, which not only removes impurities, but also preheats the steel pipe to ensure the subsequent spraying quality; Since the first air duct exhausts air and the second air duct inhales air, circulation can be achieved at this time, achieving a certain degree of heat recycling and avoiding waste of resources; The sliding frame and the second collecting frame can achieve the purpose of collecting impurities. The purpose of centralized treatment of impurities can be achieved by sliding the sliding frame and the second collecting frame. The filter net serves the purpose of filtering impurities so that the impurities are located inside the sliding frame to avoid affecting the normal use of the hair dryer.

[0016] As an optional solution of the insulation layer forming device and forming method of the wound high temperature resistant insulation pipe of the present invention, the use steps are as follows: Step 1: The steel pipe is slowly rotated by itself through the conveying mechanism and inserted into the pretreatment module and the spray molding module; Step 2: When the steel pipe is inserted into the pretreatment module, the surface of the steel pipe is pretreated by the steel pipe surface treatment mechanism and the steel pipe surface preheating mechanism; Step 3: The treated steel pipe gradually enters the spray molding module, and the surface of the steel pipe is sprayed with an insulation layer by a spraying device; Step 4: When the spraying equipment sprays the insulation layer, its protective mechanism is located outside the spraying part; Step 5: After spraying is completed, the insulation layer is shaped by the insulation layer surface treatment mechanism.

[0017] Compared with the prior art, the present invention has the following beneficial effects: When the present invention is used, a pretreatment module is installed on the outer side of the steel pipe, and the guide cover inside the pretreatment module can play a guiding role to ensure that the steel pipe stably enters therein, and the steel pipe surface treatment mechanism is provided to clean the outer surface of the steel pipe, and the steel pipe surface preheating mechanism is provided to preheat the outer surface of the steel pipe, and the steel pipe surface detection device can perform flaw detection on the outer surface of the steel pipe to ensure the quality of the steel pipe; The treated steel pipe enters the spray molding module. At this time, the spray equipment sprays the surface of the steel pipe, and the protective mechanism is set on the outside of the steel pipe. Most of the polyurethane foam overflowed by the spraying will be located outside the protective mechanism and can be processed by being drawn out through the protective mechanism, which greatly reduces the possibility of polyurethane foam material gathering inside the spray chamber and ensures the normal spraying work. The processing roller can shape the insulation layer after spraying. The lifting mechanism drives the support plate to move downward. Under the action of the fixed frame and the second motor, the processing roller moves downward. The outer side of the processing roller contacts the insulation layer. When the steel pipe moves spirally, the second motor drives the processing roller to rotate. At this time, the insulation layer on the outer side of the steel pipe can be rolled and shaped to a certain extent to avoid local spraying bulges, which is convenient for the subsequent polyethylene sheet winding work. When the steel pipe is inserted into the protective frame, the first motor is started to drive the driving gear to rotate, and the driving gear drives the driven gear ring to rotate, and the driven gear ring drives the internal cleaning brush to rotate, and the cleaning brush can remove impurities from the outer surface of the steel pipe to ensure that the subsequent spraying is closely fitted; The impurities remaining on the outer surface of the treated steel pipe are blown by the first air guide pipe outside the first air guide ring to achieve the purpose of impurity removal, and the second air guide ring and the second air guide pipe on the other side are used for extraction, and the impurities can enter the sliding frame to achieve circulation, and the blower plays the purpose of blowing hot air, which not only removes impurities, but also preheats the steel pipe to ensure the subsequent spraying quality; Since the first air duct exhausts air and the second air duct inhales air, circulation can be achieved at this time, achieving a certain degree of heat recycling and avoiding waste of resources; The sliding frame and the second collecting frame can achieve the purpose of collecting impurities. The purpose of centralized treatment of impurities can be achieved by sliding the sliding frame and the second collecting frame. The filter net serves the purpose of filtering impurities so that the impurities are located inside the sliding frame to avoid affecting the normal use of the hair dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a thermal insulation layer forming device and a forming method of a wound high-temperature resistant thermal insulation pipe; Figure 2 It is a front view of a thermal insulation layer forming device and a forming method of a wound high temperature resistant thermal insulation pipe; Figure 3 It is a structural schematic diagram of a pretreatment module of a thermal insulation layer forming device and a forming method of a wound high-temperature resistant thermal insulation pipe; Figure 4 It is a schematic diagram of the structure of the steel pipe surface treatment mechanism of the insulation layer forming device and forming method of the wound high temperature resistant insulation pipe; Figure 5 It is a schematic diagram of the structure of the steel pipe surface preheating mechanism of the insulation layer forming device and forming method of the wound high temperature resistant insulation pipe; Figure 6 It is a structural schematic diagram of a spray molding module of a thermal insulation layer molding device and a molding method of a wound high-temperature resistant thermal insulation pipe; Figure 7 It is a structural schematic diagram of a protective mechanism of a thermal insulation layer forming device and a forming method of a wound high-temperature resistant thermal insulation pipe; Figure 8 The present invention is a schematic structural diagram of a thermal insulation layer forming device and a thermal insulation layer surface treatment mechanism of a wound high temperature resistant thermal insulation pipe.

[0019] In the figure: 1. steel pipe; 2. bracket; 3. pretreatment module; 31. treatment frame; 32. steel pipe surface detection equipment; 33. guide cover; 34. steel pipe surface treatment mechanism; 341. mounting frame; 342. first motor; 343. driving gear; 344. protection frame; 345. driven gear ring; 346. fixing ring; 347. cleaning brush; 35. steel pipe surface preheating mechanism; 351. guide sleeve; 352. bottom frame; 353. hair dryer; 354. air inlet cover; 355. first air guide ring; 356. first air guide duct; 357. second air guide ring; 358. first Second air duct; 359, connecting pipe; 3510, first collecting frame; 3511, sliding frame; 3512, filter; 3513, return pipe; 36, second collecting frame; 4, placement rack; 5, spray molding module; 51, spray frame; 52, protective film; 53, spray equipment; 54, protective mechanism; 541, sliding sleeve; 542, guide plate; 543, connecting plate; 544, handle; 545, protective sleeve; 55, insulation layer surface treatment mechanism; 551, lifting mechanism; 552, support plate; 553, fixed frame; 554, second motor; 555, treatment roller. DETAILED DESCRIPTION

[0020] Example 1: Please refer to Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 , the present invention provides a technical solution: A thermal insulation layer forming device and a forming method for a wound high temperature resistant thermal insulation pipe, comprising a steel pipe 1, a bracket 2 and a pretreatment module 3; A pretreatment module 3 for surface treatment of the steel pipe 1 is installed on the top of the bracket 2; A placement rack 4 is provided on one side of the bracket 2, and a spray molding module 5 for spray molding the steel pipe 1 is installed above the placement rack 4; The spray molding module 5 includes a spray frame 51, a protective film 52 and a spray device 53. The bottom of the spray frame 51 is fixedly connected to the placement rack 4. The protective film 52 is installed on one side of the spray frame 51. The spray device 53 for spraying a thermal insulation layer on the steel pipe 1 is installed inside the spray frame 51, and a protective mechanism 54 fixedly connected to the spray frame 51 is arranged below the spray device 53. A thermal insulation layer surface treatment mechanism 55 for leveling the steel pipe 1 after spraying is also installed on one side of the inside of the spray frame 51. The protective mechanism 54 includes a sliding sleeve 541 and a guide plate 542. The sliding sleeve 541 is slidably connected with the guide plate 542, and one end of the guide plate 542 is fixedly connected to the spray frame 51. A handle 544 is fixedly connected to one side of the guide plate 542. A connecting plate 543 is fixedly connected to the upper part of the guide plate 542. The other end of the connecting plate 543 is fixedly connected to the protective sleeve 545. The above-mentioned insulation layer surface treatment mechanism 55 includes a lifting mechanism 551 and a support plate 552. The top of the above-mentioned lifting mechanism 551 is fixedly connected to the lifting mechanism 551, the free end of the above-mentioned lifting mechanism 551 is fixedly connected to the support plate 552, and the other end of the support plate 552 is fixedly connected to a fixed frame 553, the interior of the above-mentioned fixed frame 553 is fixedly connected to a second motor 554, and the end of the main shaft of the above-mentioned second motor 554 is fixedly connected to a processing roller 555.

[0021] The protective sleeve 545 is cylindrical, and the top of the protective sleeve 545 is open.

[0022] The outer side of the processing roller 555 is arranged in an arc shape.

[0023] The above usage steps are as follows: Step 1: The steel pipe 1 is slowly rotated by itself through the conveying mechanism and inserted into the pretreatment module 3 and the spray molding module 5; Step 2: When the steel pipe 1 is inserted into the pretreatment module 3, the surface of the steel pipe 1 is pretreated by the steel pipe surface treatment mechanism 34 and the steel pipe surface preheating mechanism 35; Step 3: The treated steel pipe 1 gradually enters the interior of the spray molding module 5, and a thermal insulation layer is sprayed on the surface of the steel pipe 1 through the spraying equipment 53; Step 4: When the spraying device 53 sprays the insulation layer, the protection mechanism 54 is located outside the spraying part; Step 5: After spraying is completed, the insulation layer is shaped by the insulation layer surface treatment mechanism 55 .

[0024] When spraying polyurethane raw materials, the existing method is to directly make the steel pipe move at a uniform speed on a rotating tugboat with a certain angle, and then the steel pipe enters the inside of the spraying chamber, and the nozzle directly sprays the surface of the steel pipe. Due to the lack of a surface treatment mechanism for the steel pipe, the subsequent spraying of polyurethane foam has poor spraying quality and foam detachment, resulting in a waste of raw material foam. Secondly, during spraying, due to the lack of an isolation mechanism, a large amount of polyurethane foam is attached to the spraying chamber. Over a long period of time, the foam will rise, which will seriously affect the quality of subsequent processing. When in use, a pretreatment module 3 is installed on the outside of the steel pipe 1, and the guide cover 33 inside the pretreatment module 3 can serve as a guide to ensure that the steel pipe 1 enters it stably, and the steel pipe surface treatment mechanism 34 is set to clean the outer surface of the steel pipe 1, and the steel pipe surface preheating mechanism 35 is set to preheat the outer surface of the steel pipe 1, and the steel pipe surface detection equipment 32 can perform flaw detection on the outer surface of the steel pipe 1 to ensure the quality of the steel pipe 1. The treated steel pipe 1 enters the interior of the spray molding module 5, and the spraying equipment 53 sprays the surface of the steel pipe 1, and the protective mechanism 54 is arranged outside the steel pipe 1, and the polyurethane foam overflowed by the spraying will be located outside the protective mechanism 54, and can be processed by being drawn out through the protective mechanism 54, which greatly reduces the possibility of polyurethane foam material gathering inside the spray chamber, and ensures that the spraying work is carried out normally; The surface treatment mechanism 55 of the thermal insulation layer can shape the thermal insulation layer after spraying. The lifting mechanism 551 drives the support plate 552 to move downward. Under the action of the fixed frame 553 and the second motor 554, the treatment roller 555 moves downward. The outer side of the treatment roller 555 contacts the thermal insulation layer. When the steel pipe 1 moves in a spiral motion, the second motor 554 drives the treatment roller 555 to rotate. At this time, the thermal insulation layer on the outer side of the steel pipe 1 can be rolled and shaped to a certain extent to avoid the occurrence of local spraying bulges, which is convenient for the subsequent polyethylene sheet winding work. Finally, the molten polyethylene sheet is superimposed and wound around the insulation layer at a certain pitch to form an outer protective shell layer, thereby obtaining an insulation pipe product.

[0025] In this embodiment, the guide plate 542 is rectangular, which can ensure that the protective sleeve 545 slides stably and prevents itself from rotating. The top of the protective sleeve 545 is open, which is convenient for the spraying device 53 to be located therein, and the foam dispersed by spraying is conveniently located inside the protective sleeve 545. The inner side of the protective sleeve 545 is meshed, which can ensure air flow, and the foam is located therein. The mesh plate is convenient for capturing the polyurethane spray foam material. By pulling the handle 544, the sliding sleeve 541 can be driven to move, and then the connecting plate 543 can be driven to move, which is convenient for taking out the protective sleeve 545 together, so that the material inside can be processed and the subsequent work can be carried out normally. In actual use, there may be a local convex setting of the sprayed material, such as intermittent spraying of the material. At this time, the second motor 554 drives the processing roller 555 to rotate, and at this time, it is used to roll the material, so as to facilitate the processing of the insulation layer outside the steel pipe 1, so that its surface is smooth, and it is convenient for the subsequent winding of the polyethylene sheet material; The provision of the protective film 52 can prevent the spray foam from scattering out of the spray chamber to a certain extent, thus achieving a certain protective purpose.

[0026] Example 2: This example is an improvement on Example 1. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 Specifically, the pretreatment module 3 includes a treatment frame 31, a steel pipe surface detection device 32 and a guide cover 33. The top of the treatment frame 31 is fixedly connected with the steel pipe surface detection device 32, one end of the steel pipe surface detection device 32 is installed with a detection head, one side of the treatment frame 31 is installed with a guide cover 33, and the interior of the treatment frame 31 is installed with a steel pipe surface treatment mechanism 34, a steel pipe surface preheating mechanism 35 and a second collection frame 36.

[0027] The steel pipe surface treatment mechanism 34 includes a mounting frame 341, a first motor 342 and a driving gear 343. The outer side of the mounting frame 341 is fixedly connected to the treatment frame 31. The bottom of the mounting frame 341 is fixedly connected with a protective frame 344. The inside of the mounting frame 341 is fixedly connected with the first motor 342. The outer side of the main shaft of the first motor 342 is fixedly connected with a driving gear 343. The outer side of the driving gear 343 is meshed with a driven gear ring 345. The inside of the driven gear ring 345 is fixedly connected with evenly distributed cleaning brushes 347.

[0028] The outer side of the driven gear ring 345 is slidably connected with a fixing ring 346 , and the outer side of the fixing ring 346 is fixedly connected with the protection frame 344 .

[0029] The steel pipe surface preheating mechanism 35 comprises a guide sleeve 351 having a bottom fixedly connected to a bottom frame 352, a hair dryer 353 installed inside the bottom frame 352, and an air inlet cover 354 arranged on the top of the hair dryer 353, the top of the air inlet cover 354 is connected to a first air guide ring 355, one side of the first air guide ring 355 is connected to a uniformly distributed inclined first air guide pipe 356, and the outer side of the air inlet cover 354 is fixedly connected to the bottom frame 352; A second air guide ring 357 is installed on the other side of the guide sleeve 351, one side of the second air guide ring 357 is connected to a uniformly distributed second air guide duct 358, the bottom of the second air guide ring 357 is connected to a connecting tube 359, the bottom of the connecting tube 359 is connected to a first collecting frame 3510, one side of the first collecting frame 3510 is connected to a return pipe 3513, and the other end of the return pipe 3513 is connected to the hair dryer 353.

[0030] The first collecting frame 3510 is slidably connected to a sliding frame 3511 inside, and a filter screen 3512 is installed on one side of the sliding frame 3511 .

[0031] When the steel pipe 1 is inserted into the protection frame 344, the first motor 342 is started to drive the driving gear 343 to rotate, and the driving gear 343 drives the driven gear ring 345 to rotate, and the driven gear ring 345 drives the internal cleaning brush 347 to rotate, and the cleaning brush 347 can remove impurities from the outer surface of the steel pipe 1 to ensure that the subsequent spraying is closely fitted; The impurities remaining on the outer surface of the treated steel pipe 1 are blown by the first air guide duct 356 outside the first air guide ring 355 to achieve the purpose of removing impurities, and the second air guide ring 357 and the second air guide duct 358 on the other side are used for extraction, and the impurities can enter the interior of the sliding frame 3511 to achieve circulation, and the blower 353 is used to blow hot air, which not only removes impurities, but also preheats the steel pipe 1 to ensure the subsequent spraying quality; Since the first air duct 356 exhausts air and the second air duct 358 inhales air, circulation can be achieved at this time, achieving a certain degree of heat recycling and avoiding waste of resources; The sliding frame 3511 and the second collecting frame 36 can collect impurities, and the purpose of centralized treatment of impurities can be achieved by sliding the sliding frame 3511 and the second collecting frame 36. The filter 3512 filters the impurities so that the impurities are located inside the sliding frame 3511 to avoid affecting the normal use of the hair dryer 353. In this embodiment, a fixing ring 346 is slidably arranged on the outside of the driven gear ring 345, which can be used to fix the position of the driven gear ring 345, so that the driven gear ring 345 can stably mesh with the driving gear 343, and the hair dryer 353 can blow out hot air, which can not only clean the impurities on the outside of the steel pipe 1, but also be used to preheat the outer surface of the steel pipe 1. A through hole is provided above the sliding frame 3511, so that impurities can directly enter the sliding frame 3511, and the first air duct 356 and the second air duct 358 are both hollow rings, so that air can be discharged and absorbed, and impurities on the surface of the steel pipe 1 can be processed. The steel pipe surface detection equipment 32 is provided with two sets of upper and lower detection heads to facilitate identification and detection of the surface of the steel pipe 1 to ensure the quality of the steel pipe 1. The second collection frame 36 is used to collect fallen impurities. By sliding the second collection frame 36, it is convenient to centrally process the impurities. The guide cover 33 is concavely set to guide the steel pipe 1.

[0032] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. The insulation layer forming device of the winding type high temperature resistant insulation pipe is characterized by: It comprises a steel pipe (1), a bracket (2) and a pretreatment module (3); A pretreatment module (3) for performing surface treatment on the steel pipe (1) is installed on the top of the support (2); A placement rack (4) is provided on one side of the support (2), and a spray molding module (5) for performing spray molding on the steel pipe (1) is installed above the placement rack (4); The spray molding module (5) comprises a spray frame (51), a protective film (52) and a spray device (53); the bottom of the spray frame (51) is fixedly connected to the placement rack (4); a protective film (52) is installed on one side of the spray frame (51); a spray device (53) for spraying a thermal insulation layer on the steel pipe (1) is installed inside the spray frame (51); a protective mechanism (54) fixedly connected to the spray frame (51) is arranged below the spray device (53); and a thermal insulation layer surface treatment mechanism (55) for leveling the steel pipe (1) after spraying is also installed on one side of the interior of the spray frame (51); The protective mechanism (54) comprises a sliding sleeve (541) and a guide plate (542); the sliding sleeve (541) is slidably connected to the guide plate (542), and one end of the guide plate (542) is fixedly connected to the spray frame (51); a handle (544) is fixedly connected to one side of the guide plate (542); a connecting plate (543) is fixedly connected above the guide plate (542); and the other end of the connecting plate (543) is fixedly connected to the protective sleeve (545); The thermal insulation layer surface treatment mechanism (55) comprises a lifting mechanism (551) and a support plate (552); the top of the lifting mechanism (551) is fixedly connected to the lifting mechanism (551); the free end of the lifting mechanism (551) is fixedly connected to the support plate (552); the other end of the support plate (552) is fixedly connected to a fixing frame (553); the interior of the fixing frame (553) is fixedly connected to a second motor (554); and the end of a main shaft of the second motor (554) is fixedly connected to a treatment roller (555).

2. The insulation layer forming device of the wound high temperature resistant insulation pipe according to claim 1 is characterized in that: The protective sleeve (545) is arranged in a cylindrical shape, and the top of the protective sleeve (545) is arranged to be open.

3. The thermal insulation layer forming device of the wound high temperature resistant thermal insulation pipe according to claim 1 is characterized in that: The outer side of the processing roller (555) is arranged in the form of an arc surface.

4. The thermal insulation layer forming device of the wound high temperature resistant thermal insulation pipe according to claim 1 is characterized in that: The pre-processing module (3) comprises a processing frame (31), a steel pipe surface detection device (32) and a guide cover (33); the top of the processing frame (31) is fixedly connected to the steel pipe surface detection device (32); one end of the steel pipe surface detection device (32) is installed with a detection head; one side of the processing frame (31) is installed with a guide cover (33); and the interior of the processing frame (31) is installed with a steel pipe surface processing mechanism (34), a steel pipe surface preheating mechanism (35) and a second collection frame (36).

5. The thermal insulation layer forming device of the wound high temperature resistant thermal insulation pipe according to claim 4 is characterized in that: The steel pipe surface treatment mechanism (34) comprises a mounting frame (341), a first motor (342) and a driving gear (343); the outer side of the mounting frame (341) is fixedly connected to the treatment frame (31); the bottom of the mounting frame (341) is fixedly connected to a protection frame (344); the inside of the mounting frame (341) is fixedly connected to the first motor (342); the outer side of the main shaft of the first motor (342) is fixedly connected to the driving gear (343); the outer side of the driving gear (343) is meshed with a driven gear ring (345); the inside of the driven gear ring (345) is fixedly connected to evenly distributed cleaning brushes (347).

6. The device for forming the insulation layer of a wound high temperature resistant insulation pipe according to claim 5, characterized in that: The outer side of the driven gear ring (345) is slidably connected to a fixing ring (346), and the outer side of the fixing ring (346) is fixedly connected to the protection frame (344).

7. The thermal insulation layer forming device of the wound high temperature resistant thermal insulation pipe according to claim 4, characterized in that: The steel pipe surface preheating mechanism (35) comprises a guide sleeve (351) having a bottom fixedly connected to a bottom frame (352), a hair dryer (353) installed inside the bottom frame (352), and an air inlet cover (354) arranged on the top of the hair dryer (353), the top of the air inlet cover (354) being connected to a first air guide ring (355), one side of the first air guide ring (355) being connected to a uniformly distributed inclined first air guide pipe (356), and the outer side of the air inlet cover (354) being fixedly connected to the bottom frame (352); A second air guide ring (357) is installed on the other side of the guide sleeve (351); one side of the second air guide ring (357) is connected to a uniformly distributed second air guide pipe (358); the bottom of the second air guide ring (357) is connected to a connecting pipe (359); the bottom of the connecting pipe (359) is connected to a first collection frame (3510); one side of the first collection frame (3510) is connected to a return pipe (3513); the other end of the return pipe (3513) is connected to the hair dryer (353).

8. The device for forming the insulation layer of a wound high temperature resistant insulation pipe according to claim 7, characterized in that: The first collecting frame (3510) is slidably connected to a sliding frame (3511) inside, and a filter screen (3512) is installed on one side of the sliding frame (3511).

9. The forming method of the insulation layer forming device of the wound high temperature resistant insulation pipe according to any one of claims 1 to 8, characterized in that: The molding method steps are as follows: Step 1: The steel pipe (1) is slowly rotated by itself through a conveying mechanism and inserted into the pretreatment module (3) and the spray molding module (5); Step 2: When the steel pipe (1) is inserted into the pretreatment module (3), the surface of the steel pipe (1) is pretreated by the steel pipe surface treatment mechanism (34) and the steel pipe surface preheating mechanism (35); Step 3: The treated steel pipe (1) gradually enters the interior of the spray molding module (5), and a thermal insulation layer is sprayed on the surface of the steel pipe (1) by a spraying device (53); Step 4: When the spraying device (53) sprays the thermal insulation layer, the protective mechanism (54) is located outside the spraying area; Step 5: After spraying is completed, the thermal insulation layer is shaped by the thermal insulation layer surface treatment mechanism (55).

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