Thermal insulation foam layer deviation rectifying machine for reinforced-level thermal insulation steel pipe

By using a straightening machine to fix the inner steel pipe and polyethylene sheath concentrically during the production process of insulated steel pipe, and using a motor to drive the rotation of the inner steel pipe, the problem of uneven distribution of the foam layer is solved, and the uniformity of the insulation effect and the overall performance are improved.

CN223750091UActive Publication Date: 2026-01-02QINGDAO DACANG CORROSION PREVENTION CO LTD
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Patent Information

Application Number
CN202422220146.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-11
Publication Date
2026-01-02
Estimated Expiration
2034-09-11

AI Technical Summary

Technical Problem

In existing technologies, during the production process of insulated steel pipes, the insulation foam layer is prone to eccentricity, resulting in uneven insulation effect and even insufficient thickness in some areas, affecting the overall performance.

Method used

A correction machine for the insulation foam layer of reinforced insulation steel pipe is used. The correction structure fixes the inner steel pipe and polyethylene sheath concentrically, and the motor drives the movable plate and rotating plate to rotate the inner steel pipe, thereby maintaining uniform distribution when filling polyurethane foam.

Benefits of technology

By rotating the inner steel pipe, excessive accumulation of foam material in certain areas is avoided, ensuring that the foam layer and the inner steel pipe are concentric, thus improving the insulation effect and overall performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of deviation rectifying machines, and discloses a heat preservation foam layer deviation rectifying machine for a reinforced-level heat preservation steel pipe, which comprises a bottom plate, two mounting plates are arranged on the top surface of the bottom plate in a sliding manner, a polyethylene sheath is arranged on the top surface of the bottom plate, an inner-layer steel pipe is arranged in the polyethylene sheath, and a deviation rectifying structure is arranged between the two mounting plates. Through the arrangement of the deviation rectifying structure, the two ends of the inner-layer steel pipe and the two ends of the polyethylene sheath are inserted into the mounting groove and the fixing groove respectively, the first motor is started, the movable disc drives the rotating disc to rotate through the matched arrangement of the sliding strips and the sliding grooves, and polyurethane foam is injected into the polyethylene sheath through the foaming machine; the inner-layer steel pipe keeps rotating in the filling process, foam can be evenly dispersed in the space between the inner-layer steel pipe and the polyethylene sheath, and therefore the phenomenon that the thickness of a foam layer is not uniform is reduced, it is guaranteed that the heat preservation foam layer and the inner-layer steel pipe keep concentric after filling, the heat preservation effect is guaranteed, and the overall performance of the heat preservation steel pipe is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to rectification machine technical field especially relates to a kind of reinforcing grade heat preservation steel pipe's heat preservation foam layer rectification machine. BACKGROUND

[0002] With the development of modern industrial pipeline system, especially in the field of petroleum, natural gas, heat delivery, the application of heat preservation steel pipe is increasingly widespread, heat preservation steel pipe is usually composed of inner layer steel pipe, outer polyethylene sheath and heat preservation foam layer filled between the two, heat preservation foam layer usually uses polyurethane foaming material, it has good heat insulation performance, can effectively reduce heat loss.

[0003] In the prior art, the heat preservation steel pipe is usually fixed between the polyethylene sheath and the inner layer steel pipe by the staff during production, and then a small hole is drilled in the polyethylene sheath to fill and inject polyurethane foaming material. However, during actual production, eccentricity often occurs during foam layer filling, that is, the heat preservation foam layer is unevenly distributed around the pipe, causing eccentricity between the heat preservation foam layer and the inner layer steel pipe, affecting the heat preservation effect, and even possibly leading to insufficient thickness of the local heat preservation layer, reducing the overall performance of the pipe. Therefore, the present utility model is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a reinforcing grade heat preservation steel pipe's heat preservation foam layer rectification machine.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A reinforcing grade heat preservation steel pipe's heat preservation foam layer rectification machine, comprising a bottom plate, two mounting plates are slidably arranged on the top surface of the bottom plate, a polyethylene sheath is arranged on the top surface of the bottom plate, an inner layer steel pipe is arranged inside the polyethylene sheath, a rectification structure is arranged between the two mounting plates, the rectification structure comprises a movable disc rotatably arranged inside the mounting plate, a sliding bar is fixed to one side of the mounting plate and the movable disc, a fixed ring is arranged on one side of the mounting plate, a rotating disc is rotatably arranged inside the fixed ring, a sliding groove is formed on one side of the fixed ring and the rotating disc, and the sliding bar is slidably arranged inside the sliding groove.

[0007] As a further scheme of the utility model, a first motor is fixed to the other side of the mounting plate on the right side, the output end of the first motor is fixed to one side of the movable disc, a fixed groove is formed on one side of the two fixed rings close to each other, the two ends of the polyethylene sheath are slidably inserted into the inside of the two fixed grooves respectively, an installation groove is formed on one side of the two rotating discs close to each other, and the two ends of the inner layer steel pipe are slidably inserted into the inside of the two installation grooves respectively.

[0008] As a further scheme of the utility model, the top surface of the bottom plate is provided with a movable groove, a bidirectional screw rod is rotatably arranged in the movable groove, the front and back threads of the bidirectional screw rod are respectively in threaded connection with two mounting plates, a second motor is fixed on one side of the bottom plate, and the output end of the second motor penetrates through one side of the bottom plate and is fixed with one end of the bidirectional screw rod.

[0009] As a further scheme of the utility model, the inside of the mounting groove is fixed with a magnetic ring, and the outer ring outer wall surface of the magnetic ring is in magnetic attraction connection with the inner circular wall surface of the inner layer steel pipe.

[0010] As a further scheme of the utility model, the inside of the fixing ring is provided with a limiting groove, the outer ring outer wall surface of the rotating disc is fixed with a limiting ring, and the limiting ring is slidably arranged in the inside of the limiting groove.

[0011] As a further scheme of the utility model, the cross sections of the sliding bar and the sliding groove are all T-shaped, and the sliding bar on the movable disc is spaced apart from the sliding bar on the mounting plate.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The heat preservation foam layer deviation rectifying machine, through the setting of the deviation rectifying structure, the inner layer steel pipe and the polyethylene sheath needing to be filled with the foam layer are placed between the two mounting plates, the two ends of the inner layer steel pipe and the polyethylene sheath are inserted into the mounting groove and the fixing groove respectively, thereby the inner layer steel pipe and the polyethylene sheath are fixed and kept concentric, then the worker starts the first motor, the first motor drives the movable disc to rotate, the movable disc drives the rotating disc to rotate through the cooperation of the sliding bar and the sliding groove, so that the inner layer steel pipe rotates in the inside of the polyethylene sheath under the condition that the polyethylene sheath is kept fixed;

[0014] The worker uses the foaming machine to inject polyurethane foam into the polyethylene sheath, the inner layer steel pipe keeps rotating in the filling process, the foam is uniformly dispersed in the space between the inner layer steel pipe and the polyethylene sheath, the rotating inner layer steel pipe guides the foam material to diffuse along the annular space between the inner layer steel pipe and the polyethylene sheath through the centrifugal force and the motion, thereby avoiding that the foam excessively gathers in some areas, reducing the uneven phenomenon of the foam layer thickness, thereby ensuring that the heat preservation foam layer keeps concentric with the inner layer steel pipe after filling, ensuring the heat preservation effect and improving the overall performance of the heat preservation steel pipe. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structure schematic view of the heat preservation foam layer deviation rectifying machine of the reinforced grade heat preservation steel pipe is provided for the utility model;

[0016] Figure 2 A split structure schematic view of the heat preservation foam layer deviation rectifying machine of the reinforced grade heat preservation steel pipe is provided for the utility model;

[0017] Figure 3 A split structure schematic view at the mounting plate of the deviation rectifying machine of the reinforced level thermal insulation steel pipe thermal insulation foam layer is provided in the utility model.

[0018] Figure 4 A structure schematic view at the fixing ring of the deviation rectifying machine of the reinforced level thermal insulation steel pipe thermal insulation foam layer is provided in the utility model.

[0019] In the drawing: 1, bottom plate; 2, mounting plate; 201, movable disc; 202, sliding bar; 203, fixing ring; 204, rotating disc; 205, sliding groove; 206, fixed groove; 207, mounting groove; 3, polyethylene sheath; 301, movable groove; 302, bidirectional screw rod; 4, inner layer steel pipe; 401, magnetic ring; 5, limiting groove; 501, limiting ring. Specific implementation

[0020] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0021] In the description of the utility model, it should be pointed out that the positions or location relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "another end" and the like are the positions or location relationships shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model in indicating or implying that the devices or elements must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the communication inside two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0023] As Figures 1-4As shown, a kind of reinforcing level heat-insulating steel pipe heat-insulating foam layer deviation rectifying machine, including bottom plate 1, the top surface of the bottom plate 1 is slidably provided with two mounting plates 2, the top surface of bottom plate 1 is provided with polyethylene sheath 3, the inside of polyethylene sheath 3 is provided with inner steel pipe 4, deviation rectifying structure is provided between two mounting plates 2, deviation rectifying structure includes movable disc 201 rotatably arranged in the inside of mounting plate 2, the side of mounting plate 2 and movable disc 201 is fixed with slide bar 202, the side of mounting plate 2 is provided with fixed ring 203, the inside of fixed ring 203 is rotatably provided with rotating disc 204, the side of fixed ring 203 and rotating disc 204 is provided with sliding groove 205, the inside of slide bar 202 and sliding groove 205 is slidably provided.

[0024] In the embodiment, the other side of the right mounting plate 2 is fixed with the first motor, the output end of the first motor is fixed with the side of the movable disc 201, the side of the two fixed rings 203 close to each other is provided with fixed groove 206, the two ends of the polyethylene sheath 3 are slidably inserted into the inside of the two fixed grooves 206, the side of the two rotating discs 204 close to each other is provided with mounting groove 207, the two ends of the inner steel pipe 4 are slidably inserted into the inside of the two mounting grooves 207, through the setting of deviation rectifying structure, the inner steel pipe 4 and polyethylene sheath 3 needing to fill foam layer are placed between two mounting plates 2 by staff, so that the two ends of the inner steel pipe 4 and polyethylene sheath 3 are inserted into mounting groove 207 and fixed groove 206 respectively, so as to fix and keep concentric the inner steel pipe 4 and polyethylene sheath 3, then the staff starts the first motor, the first motor drives the movable disc 201 to rotate, the movable disc 201 drives the rotating disc 204 to rotate through the cooperation of slide bar 202 and sliding groove 205, so that the inner steel pipe 4 rotates in the inside of polyethylene sheath 3 under the condition of keeping polyethylene sheath 3 fixed, then the staff drills openings on the outer circular wall surface of polyethylene sheath 3, and polyurethane foam is injected into polyethylene sheath 3 using foaming machine, the inner steel pipe 4 keeps rotating in the filling process, the foam is uniformly dispersed in the space between the inner steel pipe 4 and polyethylene sheath 3, the rotating inner steel pipe 4 diffuses the foam material along the annular space between the inner steel pipe 4 and polyethylene sheath 3 through centrifugal force and movement, so as to avoid excessive aggregation of foam in some areas, reduce the uneven phenomenon of foam layer thickness, so as to ensure that the heat-insulating foam layer keeps concentric with the inner steel pipe 4 after filling, ensure the heat-insulating effect, and improve the overall performance of heat-insulating steel pipe.

[0025] In this embodiment, the top surface of the bottom plate 1 is provided with a movable groove 301, a bidirectional screw rod 302 is rotatably arranged in the movable groove 301, the forward and reverse threads of the bidirectional screw rod 302 are respectively threadedly connected with two mounting plates 2, a second motor is fixed on one side of the bottom plate 1, the output end of the second motor penetrates through one side of the bottom plate 1 and is fixed with one end of the bidirectional screw rod 302, when the staff fixes the inner layer steel pipe 4 and the polyethylene sheath 3 of different lengths, the second motor can be started, the second motor drives the bidirectional screw rod 302 to rotate, the rotation of the bidirectional screw rod 302 makes the two mounting plates 2 close to or away from each other, so as to adapt to the inner layer steel pipe 4 and the polyethylene sheath 3 of different lengths.

[0026] In this embodiment, a magnetic ring 401 is fixed in the mounting groove 207, the outer ring outer wall surface of the magnetic ring 401 is magnetically connected with the inner circular wall surface of the inner layer steel pipe 4, the magnetic ring 401 is made of magnet material, when the staff drives the inner layer steel pipe 4 to rotate through the rotating disc 204, the magnetic ring 401 can make the connection between the mounting groove 207 and the inner layer steel pipe 4 more closely, so as to ensure that the inner layer steel pipe 4 rotates with the rotation of the rotating disc 204.

[0027] In this embodiment, a limiting groove 5 is arranged in the inside of the fixed ring 203, the outer ring outer wall surface of the rotating disc 204 is fixed with a limiting ring 501, the limiting ring 501 is slidably arranged in the inside of the limiting groove 5, through the cooperation of the limiting ring 501 and the limiting groove 5, the rotating disc 204 can be prevented from being pulled out from the fixed ring 203 when rotating.

[0028] In this embodiment, the cross sections of the sliding bar 202 and the sliding groove 205 are T-shaped, the sliding bar 202 on the movable disc 201 is spaced apart from the sliding bar 202 on the mounting plate 2, through the cooperation of the sliding bar 202 and the sliding groove 205, the staff can conveniently replace the fixed ring 203 and the rotating disc 204 according to pipes of different diameters.

[0029] Working principle: in use, the staff will need to fill the inner layer steel pipe 4 and polyethylene sheath 3 foam layer between the two mounting plate 2, make the inner layer steel pipe 4 and polyethylene sheath 3 both ends are inserted into the installation groove 207 and fixed groove 206 respectively, thus the inner layer steel pipe 4 and polyethylene sheath 3 are fixed and kept concentric, then the staff start the first motor, the first motor drives the rotating disc 201 rotation, rotating disc 201 through the cooperation of slide 202 and slide groove 205 drive rotating disc 204 rotation, so that the polyethylene sheath 3 keeps fixed, the inner layer steel pipe 4 rotates in it, then the staff drill opening on the outer circular wall surface of polyethylene sheath 3, use foaming machine to inject polyurethane foam into polyethylene sheath 3, the inner layer steel pipe 4 keeps rotating during filling, the foam will be evenly dispersed in the space between the inner layer steel pipe 4 and polyethylene sheath 3, the rotating inner layer steel pipe 4 guides the foam material along the annular space between the inner layer steel pipe 4 and polyethylene sheath 3 by centrifugal force and motion, so as to avoid excessive accumulation of foam in some areas, reduce the uneven phenomenon of foam layer thickness, so that the filled insulation foam layer keeps concentric with the inner layer steel pipe 4, the staff can start the second motor when fixing the inner layer steel pipe 4 and polyethylene sheath 3 of different length, the second motor drives the bidirectional screw rod 302 rotation, the bidirectional screw rod 302 rotation makes the two mounting plate 2 close to or away from each other, so as to adapt to the inner layer steel pipe 4 and polyethylene sheath 3 of different length, when the staff drives the inner layer steel pipe 4 rotation through rotating disc 204, the magnetic ring 401 can make the installation groove 207 and the inner layer steel pipe 4 connection more closely, ensure the inner layer steel pipe 4 rotates with the rotation of rotating disc 204, through the cooperation of limiting ring 501 and limiting groove 5, can prevent rotating disc 204 from coming out of fixed ring 203 when rotating, through the cooperation of slide 202 and slide groove 205, the staff can replace the fixed ring 203 and rotating disc 204 according to the pipe of different diameter.

[0030] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A reinforcing level of thermal insulation steel pipe insulation foam layer deviation rectifying machine, comprising a base plate (1), characterized in that: The top surface of the bottom plate (1) is slidably provided with two mounting plates (2), the top surface of the bottom plate (1) is provided with a polyethylene sheath (3), the inside of the polyethylene sheath (3) is provided with an inner steel pipe (4), a deviation correction structure is arranged between the two mounting plates (2), the deviation correction structure comprises a movable disc (201) rotatably arranged in the mounting plate (2), the mounting plate (2) and the movable disc (201) are fixedly provided with a sliding bar (202) on one side, the mounting plate (2) is provided with a fixed ring (203) on one side, the fixed ring (203) is rotatably provided with a rotating disc (204) in the inside, the fixed ring (203) and the rotating disc (204) are provided with a sliding groove (205) on one side, and the sliding bar (202) is slidably arranged in the inside of the sliding groove (205).

2. The deviation rectifying machine for the thermal insulation foam layer of the reinforced thermal insulation steel pipe according to claim 1, characterized in that, The other side of the mounting plate (2) on the right side is fixedly provided with a first motor, the output end of the first motor is fixedly connected with one side of the movable disc (201), the two fixed rings (203) are provided with a fixed groove (206) on the side close to each other, the two ends of the polyethylene sheath (3) are slidably inserted into the inside of the two fixed grooves (206), and the two rotating discs (204) are provided with an installation groove (207) on the side close to each other. The two ends of the inner steel pipe (4) are slidably inserted into the inside of the two installation grooves (207).

3. The foam layer deviation rectifying machine for reinforced thermal insulation steel pipes according to claim 2, characterized in that, The top surface of the bottom plate (1) is provided with a movable groove (301), and the movable groove (301) is rotatably provided with a bidirectional screw rod (302). The bidirectional screw rod (302) is in threaded connection with the two mounting plates (2) through opposite threads, one side of the bottom plate (1) is fixedly provided with a second motor, and the output end of the second motor penetrates through one side of the bottom plate (1) and is fixedly connected with one end of the bidirectional screw rod (302).

4. The foam layer deviation rectifying machine for reinforced thermal insulation steel pipes according to claim 3, characterized in that, The inside of the installation groove (207) is fixedly provided with a magnetic ring (401), and the outer ring outer wall surface of the magnetic ring (401) is in magnetic attraction connection with the inner circular wall surface of the inner steel pipe (4).

5. The foam layer deviation rectifying machine for reinforced thermal insulation steel pipes according to claim 4, characterized in that, The inside of the fixed ring (203) is provided with a limiting groove (5), and the outer ring outer wall surface of the rotating disc (204) is fixedly provided with a limiting ring (501), and the limiting ring (501) is slidably arranged in the inside of the limiting groove (5).

6. The foam layer deviation rectifying machine for reinforced thermal insulation steel pipes according to claim 5, characterized in that, The cross sections of the sliding bar (202) and the sliding groove (205) are all T-shaped, and the sliding bar (202) on the movable disc (201) is spaced from the sliding bar (202) on the mounting plate (2).