A strong protective seamless heat preservation outer pipe elbow

Abstract

The utility model discloses a seamless heat preservation outer protective pipe elbow of strong protective, including the elbow main part, the inside position of elbow main part fills with the heat preservation layer, and the outer wall position of this device has the inner tube cover in elbow, and the high temperature solidification silica rubber layer of inner tube cover inner wall position is combined with the surface of elbow, and high temperature solidification silica rubber layer has good high temperature resistance, and the support force is provided to solidification silica rubber layer through outer tube cover and inner tube cover, and the reasonable expansion gap is reserved between high temperature solidification silica rubber layer and pipeline, and the activity space is provided for the thermal expansion of pipeline and sealing element, when the pipeline is heated and expands, and high temperature solidification silica rubber layer can extrude with the trace displacement of pipeline, and pipeline can also carry out reasonable deformation in the reserved gap, and effectively release thermal expansion stress, avoid the pulling of expansion obstruction to sealing structure and pipeline interface, extrusion damage, guarantee the sealing reliability of interface under high temperature, and prolong the life of pipeline and sealing part.

Description

Technical Field

[0001] This utility model belongs to the technical field of seamless insulated outer protective pipe elbow with strong protection, specifically relating to a seamless insulated outer protective pipe elbow with strong protection. Background Technology

[0002] Seamless insulated outer protective pipe elbows with strong protection are key components in pipeline systems used to connect straight pipes with different directions and adapt to pipeline turning requirements. The main body is manufactured using a seamless molding process, which fundamentally avoids the leakage and corrosion risks of traditional spliced ​​elbows due to seams, and improves the overall structural strength and pressure resistance. The middle layer integrates high-efficiency insulation material, which can tightly wrap the pipe elbow area, significantly reducing the heat or cold loss of media such as hot water, steam, and refrigerant during transportation, achieving energy-saving effects. The outer layer is covered with a high-strength protective material, which can effectively resist acid and alkali corrosion, mechanical impact, ultraviolet aging, and microbial erosion in the external environment. At the same time, it has good waterproof properties to prevent moisture from penetrating the insulation layer and damaging the thermal insulation performance. This component is widely used in pipeline systems such as municipal heating, chemical fluid transportation, and cold chain logistics. It can not only meet the installation requirements of pipeline turning, but also maintain the insulation effect and pipeline safety for a long time, solving the problem of increased energy consumption or pipeline damage caused by insufficient protection and damaged insulation layer of traditional elbows.

[0003] When seamless insulated outer protective pipe elbows with strong protection are in use, the pipe body will expand due to heat when the pipeline is transporting high-temperature media, causing stress concentration and leading to pipeline cracking. Therefore, the market needs a device to solve the current problem. Utility Model Content

[0004] The purpose of this utility model is to provide a seamless insulated outer protective pipe elbow with strong protection, in order to solve the problem mentioned in the background art. When the pipeline is transporting high-temperature media, the pipe body will expand due to heat, causing stress concentration and leading to pipeline cracking. Therefore, the market needs a device to solve the current problem.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a seamless insulated outer pipe elbow with strong protective properties, comprising an elbow body, an insulation layer filling the interior of the elbow body, flanges fixed at both ends of the elbow body, inner sleeves fitted onto both sides of the outer wall of the elbow body, a high-temperature cured silicone rubber layer on the inner wall of the inner sleeve contacting the outer wall of the elbow body, and an outer sleeve fitted onto the outer wall of the inner sleeve.

[0006] Preferably, a waterproof and seepage-proof layer is provided on the outer wall of the insulation layer, and a structural reinforcement layer is provided on the inner side of the insulation layer.

[0007] Preferably, the thermal insulation layer is filled with fiber-based thermal insulation material, and the waterproof and seepage-proof layer is made of polymer waterproof membrane.

[0008] Preferably, the elbow body is connected to the external pipeline via flanges and bolts at both ends.

[0009] Preferably, the flange consists of two flanges, with the flange at the rear position fixed to the elbow body, and the flange at the rear position having threaded holes on its left and right sides inside.

[0010] Preferably, a second mating block is fixed at the front and rear positions of the left and right ends of the outer sleeve, and a first mating block is fixed at the left and right ends of the inner sleeve.

[0011] Preferably, a groove is formed on the inner side of the second docking block, and the outer tube sleeve is fitted onto the outer wall of the inner tube sleeve, so that the first docking block is inserted into the inner side of the two second docking blocks.

[0012] Preferably, when the first through hole at the internal position of the first docking block is installed with the second docking block, the center of the hole is aligned with the second through hole at the internal position of the second docking block, and a bolt post is inserted into the internal position of the second through hole, with a handle fixed at one end of the bolt post.

[0013] Compared with the prior art, this utility model provides a seamless insulated outer pipe elbow with strong protection, which has the following beneficial effects:

[0014] 1. This device has an inner sleeve fitted onto the outer wall of the elbow. The high-temperature cured silicone rubber layer on the inner wall of the inner sleeve is bonded to the surface of the elbow. The high-temperature cured silicone rubber layer has good high-temperature resistance. An outer sleeve is fitted onto the outer wall of the inner sleeve. The outer and inner sleeves provide support for the cured silicone rubber layer. At the same time, a reasonable expansion gap is reserved between the high-temperature cured silicone rubber layer and the pipeline to provide room for the thermal expansion of the pipeline and the seals. When the pipeline expands due to heat, the high-temperature cured silicone rubber layer can be squeezed with the slight displacement of the pipeline. The pipeline can also deform reasonably within the reserved gap, effectively releasing thermal expansion stress and avoiding the pulling and squeezing damage to the sealing structure and pipeline interface caused by the obstruction of expansion. This ensures the sealing reliability of the interface at high temperatures and extends the service life of the pipeline and sealing components.

[0015] 2. During installation, first fit the two inner tube sleeves onto the outer wall of the elbow, then fit the outer tube sleeve onto the outer wall of the inner tube sleeve. At the same time, insert the first mating block into the inner side of the two second mating blocks. At this point, the first through hole of the first mating block and the second through hole of the second mating block should be aligned. Manually adjust the through holes to align with the threaded holes of the flange. Finally, pass the bolt through the two through holes and turn the bolt with the handle until it enters the internal position of the threaded hole, thus completing the installation of the tube sleeve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a seamless, heat-insulating outer protective pipe elbow structure with strong protective properties according to this utility model.

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of a seamless insulated outer protective pipe elbow with strong protective properties according to this utility model.

[0018] Figure 3 This is a schematic diagram of a split structure for a seamless, heat-insulating outer protective pipe elbow with strong protective properties according to this utility model.

[0019] Figure 4 This is a schematic diagram of the outer sleeve structure of a seamless insulated outer protective pipe elbow with strong protective properties according to this utility model.

[0020] Figure 5 This is a schematic diagram of the inner sleeve structure of a seamless insulated outer protective pipe elbow with strong protective properties according to this utility model.

[0021] In the diagram: 1. Elbow body; 2. First connecting block; 3. Threaded hole; 4. Flange; 5. Outer sleeve; 6. Second connecting block; 7. Waterproof and seepage-proof layer; 8. Insulation layer; 9. Structural reinforcement layer; 10. Inner sleeve; 11. High-temperature cured silicone rubber layer; 12. First through hole; 13. Second through hole; 14. Bolt post; 15. Handle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The utility model provides, for example Figure 1-5 The diagram shows a seamless insulated outer pipe elbow with strong protective properties, including an elbow body 1, an insulation layer 8 filling the interior of the elbow body 1, flanges 4 fixed at both ends of the elbow body 1, inner pipe sleeves 10 sleeved on both sides of the outer wall of the elbow body 1, a high-temperature cured silicone rubber layer 11 on the inner wall of the inner pipe sleeve 10 in contact with the outer wall of the elbow body 1, and an outer pipe sleeve 5 sleeved on the outer wall of the inner pipe sleeve 10.

[0026] The elbow body 1 serves as the core channel, allowing fluids such as hot water, steam, and refrigerant to pass smoothly. The insulation layer 8 significantly reduces the loss of heat or cold from the fluid to the outside, achieving energy saving and maintaining stable medium temperature. The waterproof and seepage-proof layer 7 outside the insulation layer 8 effectively prevents external moisture from seeping in, avoiding a decrease in the insulation performance of the insulation layer 8 due to moisture. The structural reinforcement layer 9 ensures the bending shape and overall structural strength of the elbow. The coordinated action of these structures not only meets the pipeline turning requirements but also enables long-term and efficient medium transportation.

[0027] like Figure 1 and Figure 3As shown, a waterproof and seepage-proof layer 7 is provided on the outer wall of the insulation layer 8, and a structural reinforcement layer 9 is provided on the inner side of the insulation layer 8. The insulation layer 8 is filled with fiber-based insulation material, and the waterproof and seepage-proof layer 7 is made of polymer waterproof membrane. The elbow body 1 is connected to the external pipeline through flanges 4 and bolts at both ends. The flange 4 consists of two flanges. The flange located at the rear position is fixed to the elbow body 1, and the flange located at the rear position has threaded holes 3 on the left and right sides inside.

[0028] The flange 4 has two flanges, one of which has multiple through holes for connection with external pipes, and the other of which has threaded holes 3 for fixing to the elbow body 1. Its function is to fix it to the pipe sleeve through the threaded holes 3.

[0029] like Figure 4 and Figure 5 As shown, second connecting blocks 6 are fixed at the front and rear positions of the left and right ends of the outer tube sleeve 5, and first connecting blocks 2 are fixed at the left and right ends of the inner tube sleeve 10. A groove is formed on the inner side of the two second connecting blocks 6. The outer tube sleeve 5 is fitted onto the outer wall of the inner tube sleeve 10, so that the first connecting blocks 2 are inserted into the inner side of the two second connecting blocks 6. When the first connecting block 2 is installed with the second connecting block 6, the center of the first through hole 12 is aligned with the second through hole 13 on the inner side of the second connecting block 6. A bolt post 14 is inserted into the inner side of the second through hole 13, and a handle 15 is fixed at one end of the bolt post 14.

[0030] Two inner sleeves 10 are fitted onto the outer wall of the elbow, and then the outer sleeve 5 is fitted onto the outer wall of the inner sleeve 10. At the same time, the first mating block 2 is inserted into the inner side of the two second mating blocks 6. At this time, the first through hole 12 of the first mating block 2 and the second through hole 13 of the second mating block 6 are aligned. The through holes are manually adjusted to align with the threaded holes 3 of the flange. Finally, the bolt post 14 is passed through the two through holes and the bolt post 14 is turned by the handle 15 to enter the inner position of the threaded hole 3, thereby completing the installation of the sleeve.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A seamless, insulated outer protective pipe elbow with strong protective properties, characterized in that, The elbow body (1) includes an inner insulation layer (8) filled inside the elbow body (1), flanges (4) fixed at both ends of the elbow body (1), inner sleeves (10) fitted on both sides of the outer wall of the elbow body (1), a high-temperature cured silicone rubber layer (11) on the inner wall of the inner sleeve (10) in contact with the outer wall of the elbow body (1), and an outer sleeve (5) fitted on the outer wall of the inner sleeve (10).

2. The seamless insulated outer protective pipe elbow with strong protective properties according to claim 1, characterized in that: A waterproof and seepage-proof layer (7) is provided on the outer wall of the insulation layer (8), and a structural reinforcement layer (9) is provided on the inner side of the insulation layer (8).

3. The seamless insulated outer protective pipe elbow with strong protective properties according to claim 2, characterized in that: The insulation layer (8) is filled with fiber-based insulation material, and the waterproof and seepage-proof layer (7) is made of polymer waterproof membrane.

4. The seamless insulated outer protective pipe elbow with strong protective properties according to claim 1, characterized in that: The elbow body (1) is connected to the external pipeline through flanges (4) and bolts at both ends.

5. The seamless insulated outer protective pipe elbow with strong protective properties according to claim 1, characterized in that: The flange (4) consists of two flanges. The flange located at the rear position is fixed to the elbow body (1), and the flange located at the rear position has threaded holes (3) on its left and right sides inside.

6. The seamless insulated outer protective pipe elbow with strong protective properties according to claim 1, characterized in that: The outer sleeve (5) is fixed with a second connecting block (6) at the front and rear positions of the left and right ends, and the inner sleeve (10) is fixed with a first connecting block (2) at the left and right ends.

7. A seamless, insulated outer protective pipe elbow with strong protective properties according to claim 6, characterized in that: A groove is formed at the inner side of the two second docking blocks (6), and the outer sleeve (5) is fitted onto the outer wall of the inner sleeve (10), so that the first docking block (2) is inserted into the inner side of the two second docking blocks (6).

8. A seamless, insulated outer protective pipe elbow with strong protective properties according to claim 7, characterized in that: When the first through hole (12) is installed with the second through hole (13) inside the first docking block (2), the center of the hole is aligned with the second through hole (13) inside the second docking block (6). A bolt post (14) is inserted into the second through hole (13), and a handle (15) is fixed at one end of the bolt post (14).

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