Pipe joint for controlling telescopic deformation of pipeline
By designing a pipe section including a conveying pipe, a heat-insulating filler layer and a adjustment sleeve, the deformation and failure problem caused by thermal expansion and contraction of steel pipes during high-temperature material transportation is solved, and the stable operation of the pipeline and normal material transportation is achieved.
Patent Information
- Application Number
- CN202421975443.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-08-13
AI Technical Summary
During the high-temperature material transportation process, steel pipes are prone to deformation and failure due to thermal expansion and contraction, resulting in pipeline damage and interruption of material transportation.
A pipe section is designed, including a first conveying pipe, a second conveying pipe, a first heat-insulating filling layer, a second heat-insulating filling layer and an adjustment sleeve. By providing a spacing between the first conveying pipe and the second conveying pipe and a heat-insulating filling layer, deformation buffering and temperature difference control are realized to avoid deformation damage caused by thermal expansion, cooling and contraction.
It effectively controls the expansion and contraction of the pipeline, avoids deformation and damage caused by thermal expansion and contraction, ensures the normal transportation of materials, and controls the temperature difference deformation, and avoids damage to the pipeline system.
Smart Images
Figure CN222848887U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of high-temperature material transportation, and particularly relates to a pipe joint for controlling the expansion and contraction deformation of a pipeline. Background Art
[0002] When materials are transported through pipelines, there is often a large temperature difference between the inside and outside of the pipeline or uneven temperature. If high-temperature materials are transported, the temperature difference is more obvious. Steel pipes will deform due to thermal expansion and contraction, which can easily lead to deformation and damage. Therefore, it is very important to control the deformation of steel pipes to avoid damage. Utility Model Content
[0003] In view of the above problems, the utility model proposes a pipe section for controlling the expansion and contraction deformation of a pipeline, comprising a first conveying pipe, a second conveying pipe, a first insulation filling layer, a second insulation filling layer and an adjustment sleeve, wherein the first conveying pipe and the second conveying pipe have the same diameter and their axes coincide with each other, the first conveying pipe and the second conveying pipe are spaced apart by a set distance, the adjustment sleeve is arranged on the outside of the first conveying pipe and the second conveying pipe, the first insulation filling layer is arranged between the first conveying pipe and the adjustment sleeve, and the second insulation filling layer is arranged between the second conveying pipe and the adjustment sleeve.
[0004] Furthermore, it also includes a first annular flange and a second annular flange, the first annular flange is arranged on the outer edge of the end of the first conveying pipe, the second annular flange is arranged on the outer edge of the end of the second conveying pipe, the distance between the first annular flange and the second annular flange is equal to the distance between the first conveying pipe and the second conveying pipe, and the outer diameters of the first annular flange and the second annular flange are equal to the inner diameter of the adjusting sleeve.
[0005] Furthermore, it also includes a first annular pressure cover and a second annular pressure cover, the first annular pressure cover is arranged on an adjusting sleeve close to one end of the first annular flange, the second annular pressure cover is arranged on an adjusting sleeve close to one end of the second annular flange, the inner diameter of the first annular pressure cover is equal to the outer diameter of the first conveying pipe, and the inner diameter of the second annular pressure cover is equal to the outer diameter of the second conveying pipe.
[0006] Furthermore, the adjustment sleeve comprises an observation port and a transparent cover plate, the observation port is arranged at a middle position of the adjustment sleeve, the diameter of the observation port is larger than the distance between the first delivery pipe and the second delivery pipe, and the transparent cover plate is arranged on the observation port.
[0007] Furthermore, a first guide sleeve is arranged on the first conveying pipe, a second guide sleeve is arranged on the second conveying pipe, a first guide rod is arranged on one end of the adjusting sleeve, and a second guide rod is arranged on the other end, the first guide rod is arranged in the first guide sleeve, and the second guide rod is arranged in the second guide sleeve.
[0008] Furthermore, four of each of the first guide sleeve, the second guide sleeve, the first guide rod and the second guide rod are arranged and evenly distributed.
[0009] Furthermore, a limiting hanging plate is arranged on the top of the first guide rod, the limiting hanging plate contacts the top of the first guide sleeve, and the limiting hanging plate is used to limit the first guide rod.
[0010] Furthermore, the first annular gland, the second annular gland and the adjustment sleeve are all fastened together by bolts.
[0011] Furthermore, the first annular flange is welded to the first delivery pipe, and the second annular flange is welded to the second delivery pipe.
[0012] Furthermore, the first heat-insulating filling layer and the second heat-insulating filling layer are made of asbestos.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] The present application provides a telescopic and deformable pipe segment composed of a first conveying pipe, a second conveying pipe, a first thermal insulation filling layer, a second thermal insulation filling layer and an adjusting sleeve. When encountering high temperature, deformation buffering is achieved through the axial spacing between the first conveying pipe and the second conveying pipe, and radial insulation treatment of the first thermal insulation filling layer and the second thermal insulation filling layer is performed to control the pipe telescopic deformation of the first conveying pipe and the second conveying pipe, thereby avoiding damage to the entire pipeline caused by large deformation due to thermal expansion and contraction. It not only ensures the normal transportation of materials, but also controls temperature difference deformation, thereby avoiding large deformation causing system damage to the pipeline. The application effect is significant and has good promotion prospects.
[0015] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 An axial cross-sectional view of a pipe segment in an embodiment of the utility model is shown;
[0018] Figure 2A top view of a pipe segment in an embodiment of the utility model is shown.
[0019] In the figure, 1. first conveying pipe; 11. first guide sleeve; 2. second conveying pipe; 21. second guide sleeve; 3. first heat-insulating filling layer; 4. second heat-insulating filling layer; 5. adjusting sleeve; 51. observation port; 52. transparent cover; 53. first guide rod; 54. second guide rod; 55. limiting hanging plate; 6. first annular flange; 7. second annular flange; 8. first annular pressure cover; 9. second annular pressure cover. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] like Figure 1 As shown, a pipe section for controlling the expansion and contraction deformation of a pipeline includes a first conveying pipe 1, a second conveying pipe 2, a first heat-insulating filling layer 3, a second heat-insulating filling layer 4 and an adjusting sleeve 5. The first conveying pipe 1 and the second conveying pipe 2 have the same diameter and their axes coincide with each other. The first conveying pipe 1 and the second conveying pipe 2 are spaced apart by a set interval. The adjusting sleeve 5 is sleeved on the outside of the first conveying pipe 1 and the second conveying pipe 2. The first heat-insulating filling layer 3 is arranged between the first conveying pipe 1 and the adjusting sleeve 5, and the second heat-insulating filling layer 4 is arranged between the second conveying pipe 2 and the adjusting sleeve 5.
[0022] The first conveying pipe 1, the second conveying pipe 2 and the adjustment sleeve 5 are all annular tubes. High-temperature materials are transported through the first conveying pipe 1 and the second conveying pipe 2. When transporting high-temperature materials, the first conveying pipe 1 and the second conveying pipe 2 will expand thermally when encountering high temperature. At this time, since the first conveying pipe 1 and the second conveying pipe 2 are spaced apart by a set distance, the setting of this distance is determined according to the deformation amount and temperature of the steel, so that the spacing of the interval is greater than the deformation amount of the expansion.
[0023] The high-temperature material is deformed and buffered by the interval between the first conveying pipe 1 and the second conveying pipe 2 in the axial direction, and the radial insulation treatment of the first insulation filling layer 3 and the second insulation filling layer 4 between the first conveying pipe 1, the second conveying pipe 2 and the adjusting sleeve 5 can reduce the internal and external temperature difference of the first conveying pipe 1 and the second conveying pipe 2, and control the expansion and contraction deformation of the first conveying pipe 1 and the second conveying pipe 2 to avoid damage to the entire pipeline caused by large deformation due to thermal expansion and contraction, which not only ensures the normal transportation of materials, but also controls the temperature difference deformation, thereby avoiding large deformation causing system damage to the pipeline.
[0024] It also includes a first annular flange 6 and a second annular flange 7. The first annular flange 6 is arranged on the outer edge of the end of the first conveying pipe 1, and the second annular flange 7 is arranged on the outer edge of the end of the second conveying pipe 2. The distance between the first annular flange 6 and the second annular flange 7 is equal to the distance between the first conveying pipe 1 and the second conveying pipe 2. The outer diameters of the first annular flange 6 and the second annular flange 7 are equal to the inner diameter of the adjustment sleeve 5.
[0025] The outer diameter of the first annular flange 6 and the second annular flange 7 is equal to the inner diameter of the adjusting sleeve 5, so as to form a seal between the first conveying pipe 1 and the second conveying pipe 2 and the adjusting sleeve 5, on the one hand to prevent leakage of high-temperature materials, and on the other hand to seal and isolate the first thermal insulation filling layer 3 and the second thermal insulation filling layer 4; theoretically, the outer diameter of the first annular flange 6 and the second annular flange 7 is equal to the inner diameter of the adjusting sleeve 5, but in actual use, for the convenience of installation, the outer diameter of the first annular flange 6 and the second annular flange 7 is slightly smaller than the inner diameter of the adjusting sleeve 5, and the basic dimensions are close and matched with a small gap.
[0026] It also includes a first annular gland 8 and a second annular gland 9. The first annular gland 8 is arranged on the adjusting sleeve 5 near one end of the first annular flange 6, and the second annular gland 9 is arranged on the adjusting sleeve 5 near one end of the second annular flange 7. The inner diameter of the first annular gland 8 is equal to the outer diameter of the first conveying pipe 1, and the inner diameter of the second annular gland 9 is equal to the outer diameter of the second conveying pipe 2.
[0027] The inner diameters of the first annular pressure cap 8 and the second annular pressure cap 9 are equal to the outer diameters of the first conveying pipe 1 and the second conveying pipe 2, so as to form a seal between the adjustment sleeve 5 and the first conveying pipe 1 and the second conveying pipe 2, on the one hand to prevent leakage of high-temperature materials, and on the other hand to seal and isolate the first thermal insulation filling layer 3 and the second thermal insulation filling layer 4; theoretically, the inner diameters of the first annular pressure cap 8 and the second annular pressure cap 9 are equal to the outer diameters of the first conveying pipe 1 and the second conveying pipe 2, but in actual use, in order to facilitate installation, the inner diameters of the first annular pressure cap 8 and the second annular pressure cap 9 on the adjustment sleeve 5 are close to the basic size of the outer diameters of the first conveying pipe 1 and the second conveying pipe 2, and are matched with a small gap.
[0028] The adjustment sleeve 5 includes an observation port 51 and a transparent cover plate 52. The observation port 51 is arranged in the middle position of the adjustment sleeve 5. The diameter of the observation port 51 is larger than the distance between the first delivery pipe 1 and the second delivery pipe 2. The transparent cover plate 52 is arranged on the observation port 51 to achieve blocking and observation.
[0029] The purpose of setting the observation port 51 is to facilitate observation of the deformation of the first conveying pipe 1 and the second conveying pipe 2, so as to make timely response and adjustment. The purpose of setting the transparent cover plate 52 is to block the observation port 51 to prevent high-temperature materials from leaking from the observation port 51. At the same time, the transparent material is used so as not to affect observation. The transparent cover plate 52 can be matched with the observation port 51 through threads.
[0030] A first guide sleeve 11 is provided on the first conveying pipe 1, a second guide sleeve 21 is provided on the second conveying pipe 2, a first guide rod 53 is provided on one end of the adjusting sleeve 5, and a second guide rod 54 is provided on the other end. The first guide rod 53 is provided in the first guide sleeve 11 and the second guide rod 54 is provided in the second guide sleeve 21.
[0031] like Figure 2 As shown, the first guide sleeve 11, the second guide sleeve 21, the first guide rod 53 and the second guide rod 54 are all in four groups and are evenly distributed.
[0032] By setting four sets of mutually matching first guide sleeves 11 and first guide rods 53, second guide sleeves 21 and second guide rods 54, the purpose is that when conveying high-temperature materials, the middle of the first conveying pipe 1 and the second conveying pipe 2 are disconnected, and there is a gap between the first conveying pipe 1 and the second conveying pipe 2 and the adjustment sleeve 5, which will cause the axis of the first conveying pipe 1 and the second conveying pipe 2 to be misaligned, and even the offset is very large. In order to avoid excessive deformation and offset of the first conveying pipe 1 and the second conveying pipe 2, the first guide rod 53 in the first guide sleeve 11 and the second guide rod 54 in the second guide sleeve 21 play a role of guiding and adjusting. The reason is that the first guide rod 53 and the second guide rod 54 connected to the adjusting sleeve 5 are less affected by the high-temperature material and will not be deformed. The first insulation filling layer 3 and the second insulation filling layer 4 are arranged between the adjusting sleeve 5 and the first conveying pipe 1 and the second conveying pipe 2. Therefore, the adjusting sleeve 5 will not be deformed. Therefore, the adjusting sleeve 5 and the first guide rod 53 and the second guide rod 54 will not be deformed. Therefore, the deformation of the first guide sleeve 11 and the second guide sleeve 21 connected thereto will be controlled and constrained, and the first conveying pipe 1 and the second conveying pipe 2 will not have excessive deformation offset.
[0033] A limiting hanging plate 55 is disposed on the top of the first guide rod 53 . The limiting hanging plate 55 contacts the top of the first guide sleeve 11 . The limiting hanging plate 55 limits the first guide rod 53 .
[0034] The purpose of installing the limit hanging plate 55 is to prevent the adjustment sleeve 5 from moving downward. Under the action of gravity, the adjustment sleeve 5 will move downward, and the observation port 51 on the adjustment sleeve 5 will be offset from the gap between the first conveying pipe 1 and the second conveying pipe 2, making it impossible to observe through the observation port 51.
[0035] The first annular gland 8 and the second annular gland 9 are fastened to the adjustment sleeve 5 by bolts.
[0036] The first annular flange 6 is welded to the first delivery pipe 1 , and the second annular flange 7 is welded to the second delivery pipe 2 .
[0037] The first heat-insulating filling layer 3 and the second heat-insulating filling layer 4 are made of asbestos.
[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A pipe joint for controlling expansion and contraction of a pipeline, characterized in that: The invention comprises a first conveying pipe (1), a second conveying pipe (2), a first heat-insulating filling layer (3), a second heat-insulating filling layer (4) and an adjusting sleeve (5); the first conveying pipe (1) and the second conveying pipe (2) have the same diameter and their axes coincide with each other; the first conveying pipe (1) and the second conveying pipe (2) are spaced apart by a set distance; the adjusting sleeve (5) is sleeved on the outside of the first conveying pipe (1) and the second conveying pipe (2); the first heat-insulating filling layer (3) is arranged between the first conveying pipe (1) and the adjusting sleeve (5); and the second heat-insulating filling layer (4) is arranged between the second conveying pipe (2) and the adjusting sleeve (5).
2. The pipe joint for controlling expansion and contraction deformation of a pipeline according to claim 1, characterized in that: It also comprises a first annular flange (6) and a second annular flange (7), wherein the first annular flange (6) is arranged at the outer edge of the end of the first conveying pipe (1), and the second annular flange (7) is arranged at the outer edge of the end of the second conveying pipe (2), the distance between the first annular flange (6) and the second annular flange (7) is equal to the distance between the first conveying pipe (1) and the second conveying pipe (2), and the outer diameters of the first annular flange (6) and the second annular flange (7) are equal to the inner diameter of the adjustment sleeve (5).
3. The pipe joint for controlling expansion and contraction deformation of a pipeline according to claim 1, characterized in that: It also includes a first annular pressure cover (8) and a second annular pressure cover (9), wherein the first annular pressure cover (8) is arranged on the adjustment sleeve (5) near one end of the first annular flange (6), and the second annular pressure cover (9) is arranged on the adjustment sleeve (5) near one end of the second annular flange (7), and the inner diameter of the first annular pressure cover (8) is equal to the outer diameter of the first conveying pipe (1), and the inner diameter of the second annular pressure cover (9) is equal to the outer diameter of the second conveying pipe (2).
4. The pipe joint for controlling expansion and contraction deformation of a pipeline according to claim 1, characterized in that: The adjustment sleeve (5) comprises an observation port (51) and a transparent cover plate (52); the observation port (51) is arranged at a middle position of the adjustment sleeve (5); the diameter of the observation port (51) is greater than the distance between the first delivery pipe (1) and the second delivery pipe (2); and the transparent cover plate (52) is arranged on the observation port (51).
5. The pipe joint for controlling expansion and contraction deformation of a pipeline according to claim 1, characterized in that: A first guide sleeve (11) is arranged on the first conveying pipe (1), a second guide sleeve (21) is arranged on the second conveying pipe (2), a first guide rod (53) is arranged on one end of the adjustment sleeve (5), and a second guide rod (54) is arranged on the other end, the first guide rod (53) is arranged in the first guide sleeve (11), and the second guide rod (54) is arranged in the second guide sleeve (21).
6. The pipe joint for controlling expansion and contraction deformation of a pipeline according to claim 5, characterized in that: Four of each of the first guide sleeve (11), the second guide sleeve (21), the first guide rod (53) and the second guide rod (54) are arranged and evenly distributed.
7. The pipe joint for controlling expansion and contraction deformation of a pipeline according to claim 6, characterized in that: A limiting hanging plate (55) is arranged on the top of the first guide rod (53), the limiting hanging plate (55) contacts the top of the first guide sleeve (11), and the limiting hanging plate (55) is used to limit the first guide rod (53).
8. The pipe joint for controlling expansion and contraction deformation of a pipeline according to claim 3, characterized in that: The first annular gland (8), the second annular gland (9) and the adjustment sleeve (5) are all fastened together by bolts.
9. The pipe joint for controlling expansion and contraction deformation of a pipeline according to claim 2, characterized in that: The first annular flange (6) is welded to the first delivery pipe (1), and the second annular flange (7) is welded to the second delivery pipe (2).
10. The pipe joint for controlling expansion and contraction deformation of a pipeline according to claim 1, characterized in that: The first heat-insulating filling layer (3) and the second heat-insulating filling layer (4) are made of asbestos.