Polyurethane thermal insulation pipe and processing technology thereof

Abstract

The invention relates to the technical field of heat preservation pipe body machining, in particular to a polyurethane heat preservation pipe and a machining technology thereof.The polyurethane heat preservation pipe comprises a pipe body, a PE film arranged on the outer side of the pipe body and glass fiber gridding cloth, a foaming layer is arranged between the PE film and the pipe body, the thickness of the foaming layer ranges from 10 cm to 15 cm, and the thickness of the foaming layer ranges from 10 cm to 15 cm. The PE films and the glass fiber grids are wound on the peripheral side of the pipe body, the number of the PE films is three, and the number of the glass fiber grids is two. The heat preservation pipe has the effects that the heat preservation effect of the heat preservation pipe is improved, and production operation of the heat preservation pipe is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of thermal insulation pipe body processing, and in particular to a polyurethane thermal insulation pipe and a processing technology thereof. Background Art

[0002] When transmitting fluids in high-temperature environments in industries such as urban heating or cooling, industrial steam high-pressure transportation, etc., polyurethane insulated pipes are required to ensure effective heat transfer while reducing heat energy loss.

[0003] Since the insulation pipe is mostly implemented by pre-buried underground, when the insulation pipe is buried underground as a whole, a large amount of water vapor condensation will be produced between the inner and outer pipes, which will reduce the temperature of the insulation layer itself and affect the insulation performance of the inner pipe of the insulation pipe. At the same time, it will increase the corrosion of the outer wall of the inner pipe and the inner wall of the outer pipe, reducing the safety and stability of the insulation pipe during use. In order to improve the insulation effect of the pipeline, the operator covers the outer layer of the insulation pipe with a protective film to increase the waterproof performance, and adds a reinforcing net inside to improve the overall strength. The operation steps are cumbersome and the efficiency is low. Summary of the invention

[0004] In order to improve the thermal insulation effect of the thermal insulation pipe and facilitate the production operation of the thermal insulation pipe, the present application provides a polyurethane thermal insulation pipe and a processing technology thereof.

[0005] In the first aspect, the present application provides a polyurethane thermal insulation pipe, which adopts the following technical solution: A polyurethane thermal insulation pipe comprises a pipe body, a PE film and a glass fiber mesh cloth arranged on the outside of the pipe body, a foaming layer is arranged between the PE film and the pipe body, the foaming layer has a thickness of 10-15 cm, the PE film and the glass fiber mesh are both wrapped around the circumference of the pipe body, the PE film has three layers, and the glass fiber mesh cloth has two layers.

[0006] By adopting the above technical scheme, PE film and glass fiber mesh cloth are wrapped outside the pipe body, and the foaming layer fixes the PE film and glass fiber mesh cloth, thereby improving the insulation effect of the insulation pipe and facilitating the production operation of the insulation pipe. The foaming layer is set to 10-15cm, which is convenient for fixing the PE film and glass fiber mesh cloth while improving the stability of the PE film and glass fiber mesh cloth on the pipe body.

[0007] Optionally, the PE film and the glass fiber mesh cloth are arranged in staggered layers, and the PE film and the glass fiber mesh cloth are staggered and then wound onto the surface of the foaming layer at the same time.

[0008] By adopting the above technical solution, the PE film and the glass fiber mesh cloth are arranged in staggered layers, which improves the stability of the staggered arrangement of the PE film and the glass fiber mesh cloth on the insulation of the pipe body. At the same time, the PE film and the glass fiber mesh cloth are wound in staggered layers to reduce the production steps and improve the production efficiency of the insulation pipe.

[0009] On the other hand, the present application also provides a construction process applicable to one of the above-mentioned polyurethane insulation pipes.

[0010] A polyurethane thermal insulation pipe processing technology, the construction process is as follows: Sandblasting is performed to remove rust inside and outside the pipe body; Fix the pipe body after sandblasting and rust removal, and use a fixing component for fixing the pipe body, which can fix the pipe body and drive the pipe body to rotate; Spraying the foaming layer on the outer peripheral side of the tube body; Use a feeding assembly to wind the PE film and the glass fiber mesh around the tube body; Treat the surface of the PE film and the glass fiber mesh to make the surface of the PE film and the glass fiber mesh smooth; The tube body wrapped with PE film and glass fiber mesh is folded up.

[0011] By adopting the above technical solution, sandblasting is performed inside and outside the pipe body to remove rust, thereby improving the service life of the pipe body. The fixing component assists in fixing the pipe body, and the PE film and glass fiber mesh cloth delivered by the feeding component are transported. The fixing component can rotate the pipe body, thereby facilitating winding the PE film and glass fiber mesh cloth around the pipe body.

[0012] Optionally, the fixing assembly includes two fixing frames, the two fixing frames are symmetrically arranged, and each fixing frame is provided with a fixing piece. The two fixing pieces are close to each other, and the fixing piece is rotatably connected to the fixing frame. The rotation axis of the fixing piece is horizontal rotation, and a first rotation drive is provided on the fixing piece. The first rotation drive is used to drive the fixing piece to rotate, and the fixing piece is used to fix the tube body between the two fixing frames.

[0013] By adopting the above technical solution, after the fixing piece fixes the tube body, the first drive is started, the first drive drives the fixing piece to rotate, and the fixing piece drives the tube body to rotate, so as to facilitate winding the PE film and glass fiber mesh cloth outside the tube body.

[0014] Optionally, the fixed frame includes a leg, a connecting box and a mounting plate, the first rotation drive is arranged on the outside of the leg, the connecting box is rotatably connected to the inside of the leg, the mounting plate is arranged at one end of the connecting box away from the leg, the first rotation drive is connected to the connecting box, the first rotation drive is used to drive the connecting box to rotate, and the fixing piece is arranged at one end of the mounting plate away from the leg.

[0015] By adopting the above technical solution, the first rotation drive drives the connection box to rotate, and when the connection box rotates, the fixing member is driven to rotate, thereby facilitating driving the pipe body to rotate.

[0016] Optionally, the fixing member includes a plurality of fixing rods, each of which is hinged to the mounting plate, and the hinge direction of the plurality of fixing rods is to simultaneously retract or open toward the central axis of the tube body; a fixing cone is provided between the plurality of fixing rods, and the diameter of one end of the fixing cone close to the mounting plate is larger than the diameter of one end of the fixing cone away from the mounting plate; a second rotation drive is provided in the connecting box, and a connecting screw is provided at the driving end of the second rotation drive, one end of the connecting screw is connected to the second rotation drive, and the other end passes through the mounting plate and the fixed cone; the connecting screw is rotationally connected to the mounting plate via a bearing, and is threadedly connected to the fixed cone, and the second rotation drive is used to drive the fixed cone to retract or open the fixing rod.

[0017] By adopting the above technical solution, the second rotation drive is started, and the second rotation drive drives the fixed cone to move toward the mounting plate. The fixed cone pushes multiple fixing rods to open until the ends of the fixing rods fit against the inner wall of the pipe, thereby fixing the pipe.

[0018] Optionally, a fastening assembly is provided between the fixing frames below the tube body, the fastening assembly comprising a fastening plate, a support member provided below the fastening plate, a lifting drive and a clamping plate, the support member is connected to an end of the fastening plate away from the tube body, the support member is used to elastically support the fastening plate, the lifting drive is provided below the fastening plate, the clamping plate is provided between the lifting drive and the fastening plate, and the clamping plate is connected to the lifting drive.

[0019] By adopting the above technical solution, the lifting drive is started, and the lifting drive drives the clamping plate to rise, and the clamping plate presses the fastening plate, so that the fastening plate presses the staggered PE film and glass fiber mesh cloth against the outside of the tube body, and the first rotation drive is started. When the first rotation drive drives the tube body to rotate, the PE film and the glass fiber mesh cloth are wrapped around the periphery of the tube body, and the PE film and the glass fiber mesh cloth are fixed by the foaming layer.

[0020] Optionally, the support member includes a supporting telescopic rod and an elastic member, the supporting telescopic rod is vertically arranged below the fastening plate, the top of the supporting telescopic rod is connected to the fastening plate, and the bottom is connected to the ground, the elastic member is sleeved on the surrounding side of the supporting telescopic rod, and the two ends of the elastic member are respectively connected to the fastening plate and the ground.

[0021] By adopting the above technical solution, the telescopic rod and the elastic member are supported so that the fastening plate is located below the pipe, and the fastening plate is supported between the pipe body and the clamping plate, so that the lifting drive drives the clamping plate to clamp the fastening plate.

[0022] Optionally, the feeding assembly includes two support plates and a plurality of loading rollers and a plurality of guide rollers arranged between the two support plates, the plurality of loading rollers are vertically spaced and rotatably connected to the support plates, one support plate and the loading roller are detachably linked, the plurality of loading rollers are each provided with a rotating member, the rotating member is used to drive the loading roller to rotate, the plurality of guide rollers are arranged between the loading rollers and the tube body, the plurality of guide rollers are vertically spaced and rotatably connected to the support plates, and the number of guide rollers is greater than the number of loading rollers.

[0023] By adopting the above technical solution, the loading roller is used to install the PE film and the glass fiber mesh cloth. When the PE film and the glass fiber mesh cloth are wound on the tube body, the rotating part is started, and the rotating part drives the loading roller to rotate. The PE film and the glass fiber mesh cloth are wound on the tube body through the guide roller. The number of guide rollers is greater than the number of loading rollers, which is convenient for guiding and winding the PE film and the glass fiber mesh cloth.

[0024] Optionally, a clamping assembly is provided at one end of the feeding assembly close to the fixed assembly, the clamping assembly includes a bracket, a telescopic drive provided on the bracket and a clamping piece provided on the telescopic drive, the telescopic drive is close to the fixed assembly, the clamping piece is away from the bracket, the clamping piece includes a connecting rod and a plurality of clamping cylinders, the connecting rod is connected to the end of the telescopic drive away from the bracket, the clamping cylinder is connected to the end of the connecting rod away from the telescopic drive, the clamping direction of the clamping cylinder is horizontal clamping, and the telescopic drive can drive the connecting rod and the clamping cylinder to pass through between the tube body and the clamping plate.

[0025] By adopting the above technical solution, the telescopic drive is started, and the telescopic drive drives the connecting rod to pass through between the tube body and the clamping plate. The connecting rod drives the clamping cylinder to pass through between the tube body and the clamping plate, clamping the staggered PE film and glass fiber mesh cloth, and driving the PE film and glass fiber mesh cloth to pass through the tube body and the clamping plate, so that the PE film and glass fiber mesh cloth are located between the tube body and the clamping plate, and the clamping plate clamps the PE film and glass fiber mesh cloth, and finally the tube body is rotated to wrap the PE film and glass fiber mesh cloth around the outside of the tube body with the foaming layer.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By arranging staggered PE film and glass fiber mesh cloth, the stability of the insulation of the pipe body is improved. At the same time, the PE film and glass fiber mesh cloth are wound to reduce the production steps, thereby improving the production efficiency of the insulation pipe and the insulation effect of the insulation pipe.

[0027] 2. By setting a fixing component, a fastening component, a feeding component and a clamping component, the fixing component fixes and rotates the pipe body, the fastening component presses the PE film and the glass fiber mesh cloth fed into the pipe body, so that the PE film and the glass fiber mesh cloth adhere to the surface of the pipe body, the feeding component and the clamping component cooperate with each other to feed the side wall of the pipe body, so that the PE film and the glass fiber mesh are arranged on the side of the pipe body, which is convenient for winding the PE film and the glass fiber mesh cloth arranged in an alternating manner on the side of the pipe body, and is convenient for the production operation of the insulation pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 is a three-dimensional cross-sectional view of an embodiment of the present application; Figure 3 yes Figure 2 A magnified view of part A; Figure 4 is a structural schematic diagram of another perspective of an embodiment of the present application; Figure 5 is a three-dimensional cross-sectional view from another perspective of an embodiment of the present application; Figure 6 It is a partial stereoscopic cross-sectional view of an embodiment of the present application.

[0030] Explanation of the accompanying drawings: 1. Tube body; 2. Fixing assembly; 21. Fixing frame; 211. Support leg; 212. Connecting box; 213. Mounting plate; 22. Fixing piece; 221. Fixing rod; 222. Damping block; 23. Fixed cone; 24. First rotation drive; 25. Second rotation drive; 26. Connecting screw; 3. Feeding assembly; 31. Support plate; 32. Loading roller; 33. Guide roller; 34. Rotating piece; 4. Clamping assembly; 41. Telescopic drive; 42. Clamping piece; 421. Connecting rod; 422. Clamping cylinder; 5. Fastening assembly; 51. Fastening plate; 52. Support piece; 521. Support telescopic rod; 522. Elastic piece; 53. Lifting drive; 54. Clamping plate. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-6 This application is described in further detail.

[0032] The embodiment of the present application discloses a polyurethane thermal insulation pipe.

[0033] Reference Figure 1 A polyurethane thermal insulation pipe comprises a pipe body 1, a PE film and a glass fiber mesh cloth arranged on the outside of the pipe body 1, a foaming layer is arranged between the PE film and the pipe body 1, the PE film, the glass fiber mesh cloth and the foaming layer are not shown in the figure, the thickness of the foaming layer is 10-15cm, the PE film and the glass fiber mesh are both wrapped around the pipe body 1, the PE film is provided with three layers, and the glass fiber mesh cloth is provided with two layers. The glass fiber mesh cloth can also be a glass fiber mesh cloth. In the embodiment of the present application, the thickness of the foaming layer is set to 10cm, the PE film and the glass fiber mesh cloth are arranged in staggered layers, and the PE film and the glass fiber mesh are staggered and wound onto the surface of the foaming layer at the same time. The foaming layer is used to fix the PE film and the glass fiber mesh on the pipe wall in staggered layers. In the present embodiment, the foaming layer is a foam glue.

[0034] In addition, the present application also discloses a construction process for a polyurethane thermal insulation pipe processing technology: Sandblasting is performed on the inside and outside of the pipe body 1 to remove rust, thereby extending the service life of the pipe body 1 and reducing the influence of rust on the thermal insulation of the pipe body 1; The pipe body 1 after sandblasting and rust removal is fixed, and a fixing component 2 is used for fixing, and the fixing component 2 fixes the pipe body 1 and can still drive the pipe body 1 to rotate after the pipe body 1 is fixed; A foaming layer is sprayed on the outer peripheral side of the tube body 1. The thickness of the sprayed foaming layer is 10 cm. Before spraying, the PE film and the glass fiber mesh are located below the tube body 1. The PE film and the glass mesh are placed on the side of the tube body 1 by using the feeding component 3. The feeding component 3 is provided with a clamping component 4 at one end close to the fixing component 2. The clamping component 4 clamps the PE film and the glass mesh so that the PE film and the glass mesh are located below the tube body 1. The fastening component 5 in the fixing component 2 fastens the PE film and the glass mesh so that the PE film and the glass mesh are attached to the surface of the tube body 1. Finally, the fixing component 2 rotates the tube body 1 to wrap the PE film and the glass mesh around the side of the tube body 1. Treat the surface of the PE film and the glass fiber mesh to make the surface of the PE film and the glass fiber mesh smooth; The tube body 1 after being wound with the PE film and the glass fiber mesh is collected.

[0035] Reference Figure 1 , Figure 2 and Figure 3The fixing assembly 2 includes two fixing frames 21, which are symmetrically arranged. Fixing members 22 are provided on the fixing frames 21. The fixing members 22 are used to fix the tube body 1 between the two fixing frames 21. The two fixing members 22 are close to each other. The fixing members 22 are rotatably connected to the fixing frames 21 through a rotating shaft. The rotation axis of the fixing members 22 is horizontal rotation. A first rotation drive 24 is fixedly connected to the fixing members 22 by bolts. The first rotation drive 24 is used to drive the fixing members 22 to rotate. The first rotation drive 24 is a servo motor.

[0036] Specifically, refer to Figure 2 and Figure 3 The fixing frame 21 includes a support leg 211, a connection box 212 and a mounting plate 213. The first rotation drive 24 is arranged on the outer side of the support leg 211. The connection box 212 is rotatably connected to the inner side of the support leg 211. The mounting plate 213 is welded to one end of the connection box 212 away from the support leg 211. The first rotation drive 24 is fixedly connected to the connection box 212 by bolts. The first rotation drive 24 is used to drive the connection box 212 to rotate. The fixing member 22 is arranged on one end of the mounting plate 213 away from the support leg 211.

[0037] Reference Figure 2 and Figure 3 The fixing member 22 includes a plurality of fixing rods 221, and the plurality of fixing rods 221 are hinged to the mounting plate 213 through a rotating shaft. The hinge direction of the plurality of fixing rods 221 is to be simultaneously closed or opened toward the central axis of the tube body 1, that is, the hinge axes of the plurality of fixing rods 221 are parallel to the right side wall of the mounting plate 213. A fixing cone 23 is arranged between the plurality of fixing rods 221, and the diameter of one end of the fixing cone 23 close to the mounting plate 213 is larger than the diameter of the other end of the fixing cone 23 away from the mounting plate 213. A second rotation drive 25 is fixedly connected to the connection box 212 by bolts, and the driving end of the second rotation drive 25 is fixedly connected to the connection box 212 by a coupling. The screw rod 26 has one end connected to the second rotation drive 25, and the other end passes through the mounting plate 213 and the fixed cone 23. The screw rod 26 is rotationally connected to the mounting plate 213 through a bearing, and is threadedly connected to the fixed cone 23. The second rotation drive 25 is used to drive the fixed cone 23 to move horizontally along the axis direction of the tube body 1. The second rotation drive 25 is a servo motor. When the second rotation drive 25 drives the fixed cone 23 to approach the mounting plate 213, the fixed cone 23 causes the fixed rod 221 to open until the end of the fixed rod 221 away from the mounting plate 213 abuts against the inner wall of the tube body 1, so that the fixed rod 221 fixes the tube body 1. In this embodiment, the end of the fixed rod 221 that contacts the inner wall of the tube body 1 is bonded with a damping block 222.

[0038] The tube body 1 is placed between two fixing members 22, and the fixing members 22 are used to fix the tube body 1. The first rotation drive 24 is started, and the first rotation drive 24 drives the fixing member 22 to rotate. The tube body 1 fixed on the fixing member 22 rotates along with the first rotation drive 24, so that the PE film and the glass fiber mesh are wrapped around the side of the tube body 1. In this embodiment, the connecting box 212 is a cylindrical box.

[0039] Reference Figure 3 and Figure 4 A fastening assembly 5 is provided between the fixing frame 21 and below the tube body 1. The fastening assembly 5 includes a fastening plate 51, a support member 52 provided below the fastening plate 51, a lifting drive 53 and a clamping plate 54. The support member 52 is welded to one end of the fastening plate 51 away from the tube body 1. The support member 52 is used to elastically support the fastening plate 51. The support member 52 includes a supporting telescopic rod 521 and an elastic member 522. The supporting telescopic rod 521 is vertically provided below the fastening plate 51. The top of the supporting telescopic rod 521 is connected to the fastening plate 51, and the bottom is connected to the ground. The elastic member 522 is sleeved on the peripheral side of the supporting telescopic rod 521. The two ends of the elastic member 522 are respectively connected to the fastening plate 51 and the ground. The elastic member 522 is a spring. The lifting drive 53 is arranged below the fastening plate 51, and the bottom of the lifting drive 53 is fixedly connected to the ground by bolts. The clamping plate 54 is arranged between the lifting drive 53 and the fastening plate 51, and the clamping plate 54 is fixedly connected to the lifting drive 53 through a mounting seat. The fastening plate 51 and the clamping plate 54 are both concave arc plates, and the concave surfaces are both facing the tube body 1. The lifting drive 53 drives the clamping plate 54 to rise until the clamping plate 54 abuts against the fastening plate 51, so that the concave surface of the fastening plate 51 abuts against the peripheral side wall of the tube body 1. When a PE film and a glass fiber mesh are placed between the tube body 1 and the fastening plate 51, the fastening plate 51 presses and bonds the PE film and the glass fiber mesh to the foaming layer, so that the PE film and the glass fiber mesh are connected to the tube body 1.

[0040] Reference Figure 4 , Figure 5 and Figure 6The feeding assembly 3 includes two support plates 31 and a plurality of loading rollers 32 and a plurality of guide rollers 33 arranged between the two support plates 31. The plurality of loading rollers 32 are arranged vertically at intervals and are rotatably connected to the support plates 31 through a rotating shaft. Any support plate 31 and the loading roller 32 are detachably connected through bolts. A rotating member 34 is provided on the plurality of loading rollers 32. The rotating member 34 is used to drive the loading roller 32 to rotate. The rotating member 34 is a servo motor. The plurality of guide rollers 33 are arranged between the loading roller 32 and the tube body 1. The plurality of guide rollers 33 are arranged vertically at intervals, and the plurality of guide rollers 33 are connected to the support plates 31 through a rotating shaft. The plates 31 are also rotatably connected, and the rotation method is a shaft connection. At the same time, multiple guide rollers 33 are also detachably connected to the support plate 31 to facilitate the installation of PE film and glass fiber mesh. The number of guide rollers 33 is greater than the number of loading rollers 32. In this embodiment, the number of loading rollers 32 is set to five, and the number of guide rollers 33 is set to six. The PE film and the glass fiber mesh are installed on the loading rollers 32 in staggered layers and pass through the guide rollers 33. The guide rollers 33 guide and flatten the PE film and the glass fiber mesh to facilitate the PE film and the glass fiber mesh to be wrapped around the side of the tube body 1.

[0041] Reference Figure 5 and Figure 6 A clamping assembly 4 is provided at one end of the feeding assembly 3 close to the fixed assembly 2, the clamping assembly 4 includes a bracket, a telescopic drive 41 provided on the bracket and a clamping piece 42 provided on the telescopic drive 41, the telescopic drive 41 is close to the fixed assembly 2, the telescopic drive 41 is a cylinder, the clamping piece 42 is far away from the bracket, the clamping piece 42 includes a connecting rod 421 and a plurality of clamping cylinders 422, the connecting rod 421 is fixedly connected to the end of the telescopic drive 41 away from the bracket by bolts, the clamping cylinder 422 is fixedly connected to the end of the connecting rod 421 away from the telescopic drive 41 by a mounting seat, the clamping direction of the clamping cylinder 422 is horizontal clamping, the clamping cylinder 422 is a finger cylinder, and the telescopic drive 41 can drive the connecting rod 421 and the clamping cylinder 422 to pass through between the tube body 1 and the clamping plate 54.

[0042] The implementation principle of a polyurethane thermal insulation pipe in an embodiment of the present application is as follows: when winding the PE film and the glass fiber mesh, the PE film and the glass fiber mesh are installed on the loading roller 32 in a staggered manner, and the PE film and the glass fiber mesh are staggered and passed between the two guide rollers 33, the pipe body 1 is fixed using the fixing member 22, the telescopic drive 41 is started, the telescopic drive 41 drives the clamping cylinder 422 to clamp the PE film and the glass fiber mesh, the telescopic drive 41 is started again, and the telescopic drive 41 drives the clamping cylinder 422 to move away from the guide roller 33 until the PE film and the glass fiber mesh are located The lifting drive 53 is then started between the tube body 1 and the fastening plate 51, and the lifting drive 53 drives the fastening plate 51 to press the PE film and the glass fiber mesh against the foaming layer of the tube body 1. Finally, the lifting drive 53 drives the fastening plate 51 away from the tube body 1, and the first rotation drive 24 is started. The first rotation drive 24 drives the fixing part 22 and the tube body 1 to rotate together, and the staggered PE film and glass fiber mesh are wrapped around the side of the tube body 1, thereby improving the thermal insulation effect of the insulation pipe and facilitating the production operation of the insulation pipe.

[0043] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A polyurethane thermal insulation pipe, characterized in that: The invention comprises a tube body (1), a PE film and a glass fiber mesh cloth arranged on the outside of the tube body (1), a foaming layer is arranged between the PE film and the tube body (1), the foaming layer has a thickness of 10-15 cm, the PE film and the glass fiber mesh are both wound around the tube body (1), the PE film has three layers, and the glass fiber mesh cloth has two layers.

2. The polyurethane thermal insulation pipe according to claim 1, characterized in that: The PE film and the glass fiber mesh cloth are arranged in staggered layers, and the PE film and the glass fiber mesh cloth are wound onto the surface of the foaming layer at the same time after being staggered.

3. A polyurethane thermal insulation pipe processing technology, used for a polyurethane thermal insulation pipe as claimed in any one of claims 1 or 2, characterized in that: The construction process is as follows: Sandblasting is performed to remove rust inside and outside the tube body (1); The pipe body (1) after sandblasting and rust removal is fixed, and a fixing component (2) is used for fixing, wherein the fixing component (2) fixes the pipe body (1) and can drive the pipe body (1) to rotate; Spraying a foaming layer on the outer peripheral side of the tube body (1); Using a feeding assembly (3), the PE film and the glass fiber mesh are wound around the circumference of the tube body (1); Treat the surface of the PE film and the glass fiber mesh to make the surface of the PE film and the glass fiber mesh smooth; The tube body (1) after being wrapped with the PE film and the glass fiber mesh is folded up.

4. A polyurethane thermal insulation pipe processing technology according to claim 3, characterized in that: The fixing assembly (2) comprises two fixing frames (21), the two fixing frames (21) are symmetrically arranged, each fixing frame (21) is provided with a fixing member (22), the two fixing members (22) are close to each other, the fixing member (22) and the fixing frame (21) are both rotatably connected, the rotation axis of the fixing member (22) is horizontal rotation, the fixing member (22) is provided with a first rotation drive (24), the first rotation drive (24) is used to drive the fixing member (22) to rotate, and the fixing member (22) is used to fix the pipe body (1) between the two fixing frames (21).

5. A polyurethane thermal insulation pipe processing technology according to claim 4, characterized in that: The fixing frame (21) comprises a support leg (211), a connection box (212) and a mounting plate (213); the first rotation drive (24) is arranged on the outside of the support leg (211); the connection box (212) is rotationally connected to the inside of the support leg (211); the mounting plate (213) is arranged at one end of the connection box (212) away from the support leg (211); the first rotation drive (24) is connected to the connection box (212); the first rotation drive (24) is used to drive the connection box (212) to rotate; and the fixing member (22) is arranged at one end of the mounting plate (213) away from the support leg (211).

6. A polyurethane thermal insulation pipe processing technology according to claim 5, characterized in that: The fixing member (22) comprises a plurality of fixing rods (221), the plurality of fixing rods (221) are hinged to the mounting plate (213), the hinged direction of the plurality of fixing rods (221) is to be simultaneously closed or opened toward the central axis of the tube body (1), a fixing cone (23) is arranged between the plurality of fixing rods (221), the diameter of one end of the fixing cone (23) close to the mounting plate (213) is larger than the diameter of one end of the fixing cone (23) far from the mounting plate (213), and a connection box (212) is arranged inside the connection box (212). A second rotation drive (25) is provided, and a connecting screw (26) is provided at a driving end of the second rotation drive (25). One end of the connecting screw (26) is connected to the second rotation drive (25), and the other end passes through the mounting plate (213) and the fixed cone (23). The connecting screw (26) is rotationally connected to the mounting plate (213) via a bearing, and is threadedly connected to the fixed cone (23). The second rotation drive (25) is used to drive the fixed cone (23) to retract or open the fixed rod (221).

7. The polyurethane thermal insulation pipe processing technology according to claim 4 is characterized by: A fastening assembly (5) is provided between the fixing frames (21) and below the tube body (1). The fastening assembly (5) comprises a fastening plate (51), a support member (52) provided below the fastening plate (51), a lifting drive (53) and a clamping plate (54). The support member (52) is connected to an end of the fastening plate (51) away from the tube body (1). The support member (52) is used to elastically support the fastening plate (51). The lifting drive (53) is provided below the fastening plate (51). The clamping plate (54) is provided between the lifting drive (53) and the fastening plate (51). The clamping plate (54) is connected to the lifting drive (53).

8. The polyurethane thermal insulation pipe processing technology according to claim 7 is characterized by: The support member (52) comprises a supporting telescopic rod (521) and an elastic member (522); the supporting telescopic rod (521) is vertically arranged below the fastening plate (51); the top of the supporting telescopic rod (521) is connected to the fastening plate (51), and the bottom is connected to the ground; the elastic member (522) is sleeved around the supporting telescopic rod (521), and the two ends of the elastic member (522) are respectively connected to the fastening plate (51) and the ground.

9. The polyurethane thermal insulation pipe processing technology according to claim 3 is characterized by: The feeding assembly (3) comprises two support plates (31) and a plurality of loading rollers (32) and a plurality of guide rollers (33) arranged between the two support plates (31); the plurality of loading rollers (32) are arranged at intervals vertically and are rotatably connected to the support plates (31); one support plate (31) and the loading roller (32) are detachably connected; the plurality of loading rollers (32) are each provided with a rotating member (34); the rotating member (34) is used to drive the loading roller (32) to rotate; the plurality of guide rollers (33) are arranged between the loading roller (32) and the tube body (1); the plurality of guide rollers (33) are arranged at intervals vertically and are rotatably connected to the support plates (31); and the number of guide rollers (33) is greater than the number of loading rollers (32).

10. A polyurethane thermal insulation pipe processing technology according to claim 9, characterized in that: The feeding assembly (3) is provided with a clamping assembly (4) at one end close to the fixed assembly (2). The clamping assembly (4) comprises a bracket, a telescopic drive (41) arranged on the bracket, and a clamping member (42) arranged on the telescopic drive (41). The telescopic drive (41) is close to the fixed assembly (2), and the clamping member (42) is far away from the bracket. The clamping member (42) comprises a connecting rod (421) and a plurality of clamping cylinders (422). The connecting rod (421) is connected to one end of the telescopic drive (41) far away from the bracket. The clamping cylinder (422) is connected to one end of the connecting rod (421) far away from the telescopic drive (41). The clamping direction of the clamping cylinder (422) is horizontal clamping. The telescopic drive (41) can drive the connecting rod (421) and the clamping cylinder (422) to pass through between the tube body (1) and the abutting plate (54).

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