A vertical installation support structure for large water pipelines

Abstract

The present invention provides a support structure for the vertical installation of large water pipelines. The support structure includes expansion joints, brackets, vertical limit brackets, a crisscross frame, sliding supports, fixed supports, and cement buttresses. In the support structure provided by the present invention, the eleventh floor is supported by the first and second support assemblies, the bottoms of floors six to ten are supported by the third support assembly, the fifth floor is supported by the fourth support assembly, floors one to four are supported by a crisscross frame, and the basement floor is supported by the fifth support assembly. This support structure can provide reasonable support for large water pipelines and effectively compensate for pipeline deformation.

Description

Technical Field

[0001] The present invention relates to a vertical installation support structure for a large water pipeline, which is used for the spatial three-dimensional support of the large water pipeline in a water spray cooling and noise reduction system of a large launch platform in a satellite launch center, and belongs to the field of ground equipment engineering applications of rocket launch systems. Background Art

[0002] The water spray cooling and noise reduction systems of large launch pads mostly use large high-level water tanks to supply water to ground-based water spray devices through large-diameter water pipes. Currently, the high-level water tank of a newly built smart launch pad in China is installed in a tower room at a height of 85m. The diameter of the water pipe is φ1.6m. The weight of the water pipe itself plus the weight of the internal water load reaches approximately 250t. The water pipe is arranged and installed from top to bottom along the launch tower floors. During the design and installation of the water pipe support structure, the stress state of the support structure of each floor under the gravity load must be considered. It is also necessary to consider the huge stress caused by the cold and hot deformation of the pipe caused by the local temperature difference of 70℃ in winter and summer, the water pressure blind plate force on the pipe during the loading and drainage process, and the dynamic load impact of water during rapid flow. Therefore, the support structure of the water pipe is a complex force system structure. Improper design will lead to serious structural damage. Therefore, it is necessary to design a reasonable support structure to support the vertical installation of large water pipes. Summary of the Invention

[0003] The present invention aims to provide a rationally designed support structure for the vertical installation of large water pipelines. The structure provides various support methods for different locations on the pipeline, including expansion joints, brackets, vertical limit brackets, cross-shaped brackets, sliding supports, fixed supports, and cement buttresses. Through these targeted support methods, the pipeline can be rationally and effectively supported at different locations, ensuring the stability of the pipeline structure.

[0004] The technical solutions of the present invention are as follows:

[0005] A large vertically mounted water pipeline support structure, the large water pipeline leads water from the twelfth-floor water tank to the basement floor. The water pipeline on the eleventh floor is connected to a first elbow 2 that turns vertically to horizontal and a second elbow 3 that turns horizontally to vertically downward. The water pipeline on the fifth floor is provided with an inclined pipe 4, and the water pipeline on the basement floor is provided with a third elbow 5. The support structure includes a pipeline support assembly and a pipeline connection assembly. The support assembly includes a first support assembly 7, a second support assembly 8, a third support assembly 9, a fourth support assembly 11, and a fifth support assembly 13. The connection assembly includes a first expansion joint 6, a second expansion joint 10, and a third expansion joint 12.

[0006] The first expansion joint 6 is set on the eleventh floor, the second expansion joint 10 is set on the sixth floor, and the third expansion joint 12 is set on the fourth floor; the first expansion joint 6 is used to compensate for the vertical contraction and expansion of the outlet pipe of the water tank 1, the second expansion joint 10 is used to compensate for the contraction and expansion of the pipes on the sixth to tenth floors, and the third expansion joint 12 is used to compensate for the contraction and expansion of the pipes on the negative one to the fourth floor;

[0007] The first elbow 2 and the second elbow 3 at the eleventh floor are supported by the first support assembly 7 and the second support assembly 8 respectively. The bottom of the water supply pipes from the sixth to the eleventh floors are supported by the third support assembly 9. The water supply pipes on the fifth floor are supported by the fourth support assembly 11. The water supply pipes from the first to the fourth floors are supported by the well frame 18. The third elbow 5 on the underground first floor is supported by the fifth support assembly 13.

[0008] Furthermore, a first support assembly 7 is used to support the first elbow 2, and the first support assembly 7 includes a bracket 14 and a first hoop 15. The main body of the bracket 14 is made of H-steel and ribs; the upper part of the first elbow 2 is fixed with the first hoop 15, and a rubber pad is added between the first hoop 15 and the first elbow 2.

[0009] Furthermore, a second support assembly 8 is used for support at the second elbow 3. The second support assembly 8 includes a cement base 16 with a semicircular groove and a second hoop 17. The second hoop 17 is composed of a pair of 1 / 4 round parts. A welded steel plate is fixed on the upper end surface of the cement base 16, and one end of each second hoop 17 is welded to the steel plate; the second elbow 3 is located in the semicircular groove of the cement base 16, and the two 1 / 4 round parts are connected by bolts.

[0010] Furthermore, a certain gap is left between the second clamp 17 and the water pipe to prevent the cement base 16 from being damaged due to over-tightening.

[0011] Furthermore, a rubber pad is added between the second clamp 17 and the pipe.

[0012] Furthermore, the sixth to eleventh floors are all supported by the third support assembly 9, and the third support assembly 9 includes a grid frame 18 and four sliding supports 19. The grid frame 18 surrounds the water pipeline, and there is no direct contact between the grid frame 18 and the pipeline; an arc-shaped welded guard plate is provided at the connection between the sliding support 19 and the water pipeline, and the four sliding supports 19 are welded to the periphery of the water pipeline by fillet welds around the arc-shaped welded guard plate; the sliding support 19 is mounted on the grid frame 18.

[0013] Furthermore, limiting baffles 20 are added at both ends of the sixth-layer sliding support 19 to limit the rotation of the water pipe.

[0014] Furthermore, the five layers are supported by the fourth support assembly 11, and the fourth support assembly 11 includes a grid frame 18 and four fixed supports 21; an arc-shaped welded guard plate is provided at the connection between the fixed support 21 and the water pipeline, and the four fixed supports 21 are welded to the periphery of the water pipeline by using fillet welds around the arc-shaped welded guard plate; the fixed support 21 is welded on the grid frame 18, and the contact surfaces of the two are welded by fillet welds.

[0015] Furthermore, the basement floor adopts the support form of the fifth support assembly 13, and the fifth support assembly 9 includes a cement pier 22 and a third hoop 23; the groove of the cement pier 22 wraps the outer area of ​​the third elbow 5, providing vertical and horizontal support force for the third elbow 5; the third hoop 23 is used to fix the third elbow 5 on the upper part of the cement pier 22.

[0016] Furthermore, a rubber pad is added between the third clamp 23 and the third elbow 5 , and a rubber pad is added between the groove of the cement pier 22 and the third elbow 5 .

[0017] Beneficial effects of the present invention:

[0018] The present invention can provide reasonable and effective support to different positions of the water pipeline and effectively compensate for pipeline deformation through targeted support forms, thereby ensuring the stability of the water pipeline structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a large water pipeline in one embodiment of the present application.

[0020] Figure 2 It is a schematic diagram of the support structure in one embodiment of the present application.

[0021] Figure 3 yes Figure 2 Schematic diagram of the structure of the first support assembly.

[0022] Figure 4 yes Figure 2 Schematic diagram of the structure of the second support assembly.

[0023] Figure 5 yes Figure 2 Schematic diagram of the structure of the third support assembly.

[0024] Figure 6 yes Figure 2 Schematic diagram of the structure of the fifth support assembly.

[0025] Main component serial number description

[0026] 1-water tank, 2-first elbow, 3-second elbow, 4-inclined pipe, 5-third elbow, 6-first expansion joint, 7-first support assembly, 8-second support assembly, 9-third support assembly, 10-second expansion joint, 11- Four Support assembly, 12- three Expansion joint, 13- five Support assembly, 4-bracket, 15-first hoop, 16-cement base, 17-second hoop, 18-well frame, 19-sliding support, 20-limit baffle, 21-fixed support, 22-cement pier, 23-third hoop DETAILED DESCRIPTION

[0027] The technical solution of the embodiment of the present invention will be described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only one embodiment that can be applied to this application, rather than all embodiments.

[0028] The embodiment of the present invention provides a large water pipeline vertical installation support structure. The structural diagram of the water pipeline can be found in Figure 1 In the embodiment, the water supply pipe leads water from the water tank on the twelfth floor to the basement floor. The water supply pipe on the eleventh floor has two elbows - a first elbow 2 and a second elbow 3. The water supply pipe on the fifth floor has an inclined pipe 4. The water supply pipe on the basement floor has a third elbow 5.

[0029] See also Figure 2 The support structure includes a support assembly and a connection assembly. The support assembly includes a first support assembly 7, a second support assembly 8, a third support assembly 9, a fourth support assembly 11, and a fifth support assembly 13. The connection assembly includes a first expansion joint 6, a second expansion joint 10, and a third expansion joint 12.

[0030] In the embodiment, the water supply pipeline needs to be moved outward from the water tank 1 on the twelfth floor to the eleventh floor, so there is a first elbow 2 that turns from vertical to horizontal and a second elbow 3 that turns from horizontal to vertical downward in the pipeline.

[0031] The first support assembly 7 is used at the first elbow 2. The first support assembly 7 includes a bracket 14 and a first hoop 15. Please refer to the structure of Figure 3. The main body of the bracket 14 is made of H-shaped steel and ribs. The upper part of the first elbow 2 is fixed with a first clamp 15, and a rubber pad is added between the first clamp 15 and the first elbow 2. The bracket 14 provides horizontal and vertical support for the first elbow 2, and also limits the movement of the first elbow 2. A rubber pad is added between the support surface of the bracket and the contact surface of the first elbow 2. The bracket can provide horizontal and vertical support to the elbow at the same time when the water pipe is full of water, so as to balance the horizontal and vertical blind plate forces on the elbow.

[0032] The second elbow 3 is supported by a second support assembly 8. The second support assembly 8 includes a cement base 16 with a semicircular groove and a second clamp 17. The second clamp 17 is composed of a pair of 1 / 4 round pieces. A welded steel plate is fixed to the upper end surface of the cement base 16. One end of each second clamp 17 is welded to the steel plate. For its structure, please refer to Figure 4 . The second elbow 3 is located in the semicircular groove of the cement base 16, and the two 1 / 4 round parts are connected by bolts, and a rubber pad is added between the second clamp 17 and the pipe. During the process of injecting water into the pipe, with the first elbow 2 as the fulcrum, the second elbow 3 is subjected to an upward blind plate force, and the second support assembly 8 is used to limit the excessive upward movement of the second elbow 3. A certain gap is left between the second clamp 17 and the water pipe to prevent the cement base 16 from being damaged due to over-tightening. The second support assembly 8 is used as a support at the second elbow 3 position in the horizontal to vertical downward direction of the water pipe to limit the excessive upward movement of the elbow caused by the upward blind plate force on the elbow.

[0033] Because the water pipeline in the embodiment described is located in a geographical location with significant temperature differences throughout the seasons, the main pipeline experiences significant thermal expansion and contraction. To compensate for thermal deformation, expansion joints are required. In the embodiment described, the first expansion joint 6 is located on the eleventh floor, the second expansion joint 10 is located on the sixth floor, and the third expansion joint 12 is located on the fourth floor. The first expansion joint 6 compensates for vertical contraction and expansion of the outlet pipeline of the water tank 1, the second expansion joint 10 compensates for contraction and expansion of the pipeline on floors six through ten, and the third expansion joint 12 compensates for contraction and expansion of the pipeline on floors -1 through -4.

[0034] A support form of a crisscross frame and a sliding support is adopted in the straight pipe section of the water main pipeline, and the crisscross frame surrounds the water pipeline.

[0035] The sixth to eleventh floors of the embodiment adopt the support form of the third support assembly 9, which includes a well frame 18 and four sliding supports 19. The structure of the third support assembly 9 can be found in FIG. Figure 5The cross frame 18 surrounds the water pipeline, and there is no direct contact between the cross frame 18 and the pipeline. The connection between the sliding support 19 and the water pipeline is provided with an arc-shaped welded guard plate, and the four sliding supports 19 are welded to the periphery of the water pipeline by fillet welds around the arc-shaped welded guard plate.

[0036] The sliding support 19 is mounted on the well frame 18. When the water pipeline contracts, the pipelines from the seventh to the eleventh floor contract upwards due to the expansion joints provided on the sixth floor. At this time, this section of the pipeline is mainly supported by the sliding support 19 and the well frame 18 on the eleventh floor.

[0037] The cross-shaped frame 18 can limit the horizontal movement of the water pipe, but cannot prevent the pipe from rotating along its vertical axis. Because horizontal circumferential forces are generated when the six-layer pipe is filled with water, limit baffles 20 are added at both ends of the sliding support 19 on the upper part of the inclined pipe of the sixth layer to limit the rotation of the water pipe.

[0038] A support form of a crisscross frame and a fixed support is adopted at the lower part of the inclined pipe of the water main pipeline. The fixed support is respectively welded to the crisscross frame and the water pipeline to limit the movement of the water pipeline in all directions.

[0039] The fifth floor of the embodiment utilizes a fourth support assembly 11, which includes a grid-shaped frame 18 and four fixed supports 21. The structure of the fixed supports 21 is identical to that of the sliding supports 19. Because the lower portion of the inclined tube is subject to an upward blind plate force, an arc-shaped welded guard plate is provided at the connection between the fixed supports 21 and the water pipeline. The four fixed supports 21 are welded to the outer periphery of the water pipeline using fillet welds around the arc-shaped welded guard plate. The fixed supports 21 are welded to the grid-shaped frame 18, and the contact surfaces between the two are welded using fillet welds.

[0040] The first to fourth layers of the embodiment adopt the support form of a grid frame 18. The grid frame 18 is not in direct contact with the water pipeline. The first to fourth layers of the grid frame do not bear the gravity of the water pipeline and only provide vertical guide support for the water pipeline.

[0041] The basement floor of the embodiment adopts the support form of the fifth support assembly 13, and the fifth support assembly 9 includes a cement support pier 22 and a third hoop 23, see Figure 6 The groove of the cement support 22 wraps around the outer area of ​​the third elbow 5, providing vertical and horizontal support for the third elbow 5. A rubber pad is added between the cement support 22 and the third elbow 5.

[0042] The third elbow 5 is fixed to the upper portion of the cement support 22 by a third clamp 23 to prevent the pipeline from vibrating along the flow direction. A rubber pad is placed between the groove of the third clamp 23 and the third elbow 5.

[0043] In summary, in the support structure provided by the embodiment of the present application, the first elbow 2 and second elbow 3 at the eleventh floor are supported by the first support assembly 7 and the second support assembly 8, respectively. The bottom of the water pipelines from the sixth to the eleventh floors is supported by the third support assembly 9. The water pipelines from the fifth floor are supported by the fourth support assembly 11. The water pipelines from the first to the fourth floors are supported by a cross-shaped support frame 18. The third elbow 5 at the basement level is supported by the fifth support assembly 13. In this embodiment, the main load-bearing points are the concrete support pier 22 on the basement level, the fixed support 21 on the fifth floor, the sliding support 19 on the sixth floor, and the concrete base 16 on the eleventh floor. The third expansion joint 12 on the fourth floor compensates for pipe deformation from the basement level to the fourth floor and deformation below the fixed point on the fifth floor. The second expansion joint 10 on the sixth floor compensates for pipe deformation beneath the floor slabs from the sixth to the eleventh floors. Vertical pipe deformation between the fifth and sixth floors is compensated by the inclined pipe 4 itself, while horizontal pipe deformation is compensated by the second expansion joint 10 on the sixth floor. The support structure of this embodiment can provide reasonable support for large water pipelines and effectively compensate for pipe deformation.

Claims

1. A large water pipeline vertical installation support structure, wherein the large water pipeline leads water from the water tank on the twelfth floor to the basement floor, wherein the water pipeline on the eleventh floor is connected to a first elbow (2) that turns vertically to horizontal and a second elbow (3) that turns horizontally to vertically downward, the water pipeline on the fifth floor is provided with an inclined pipe (4), and the water pipeline on the basement floor is provided with a third elbow (5); characterized in that: The support structure comprises a pipeline support assembly and a pipeline connection assembly; the support assembly comprises a first support assembly (7), a second support assembly (8), a third support assembly (9), a fourth support assembly (11), and a fifth support assembly (13); the connection assembly comprises a first expansion joint (6), a second expansion joint (10), and a third expansion joint (12); The first expansion joint (6) is arranged on the eleventh floor, the second expansion joint (10) is arranged on the sixth floor, and the third expansion joint (12) is arranged on the fourth floor; the first expansion joint (6) is used to compensate for the contraction and expansion of the outlet pipe of the water tank (1) in the vertical direction, the second expansion joint (10) is used to compensate for the contraction and expansion of the pipes from the sixth to tenth floors, and the third expansion joint (12) is used to compensate for the contraction and expansion of the pipes from the negative one to the fourth floor; The first elbow (2) and the second elbow (3) at the eleventh floor are supported by the first support assembly (7) and the second support assembly (8) respectively. The first support assembly (7) provides horizontal and vertical support forces for the first elbow (2), and the second support assembly (8) is used to limit the excessive upward movement of the second elbow (3); the bottoms of the water pipes from the sixth to the eleventh floors are supported by the third support assembly (9), and the third support assembly (9) is used to limit the horizontal movement of the water pipes; the water pipes on the fifth floor are supported by the fourth support assembly (11) to fix the water pipes; the water pipes on the first to fourth floors are supported by the well frame (18) to provide vertical guide support for the water pipes; the third elbow (5) on the negative first floor is supported by the fifth support assembly (13) to provide vertical and horizontal support forces for the third elbow (5).

2. The large water pipeline vertical installation support structure according to claim 1, characterized in that: The first elbow (2) is supported by a first support assembly (7), the first support assembly (7) comprising a bracket (14) and a first hoop (15), the main body of the bracket (14) being made of H-shaped steel and ribs; the upper portion of the first elbow (2) is fixed by the first hoop (15), and a rubber pad is added between the first hoop (15) and the first elbow (2).

3. The large water pipeline vertical installation support structure according to claim 1, characterized in that: The second elbow (3) is supported by a second support assembly (8), the second support assembly (8) comprising a cement base (16) having a semicircular groove and a second hoop (17), the second hoop (17) being composed of a pair of 1 / 4 round pieces, a welded steel plate being fixed to the upper end surface of the cement base (16), and one end of each second hoop (17) of the second hoop (17) being welded to the steel plate; the second elbow (3) is located in the semicircular groove of the cement base (16), and the two 1 / 4 round pieces are connected by bolts.

4. The large water pipeline vertical installation support structure according to claim 3, characterized in that: A certain gap is left between the second clamp (17) and the water pipe to prevent the cement base (16) from being damaged due to over-tightening.

5. The large water pipeline vertical installation support structure according to claim 4, characterized in that: A rubber pad is added between the second clamp (17) and the pipe.

6. The large water pipeline vertical installation support structure according to claim 1, characterized in that: The sixth to eleventh floors are all supported by a third support assembly (9), the third support assembly (9) comprising a well frame (18) and four sliding supports (19), the well frame (18) enclosing the water pipeline, and there is no direct contact between the well frame (18) and the pipeline; an arc-shaped welded guard plate is provided at the connection between the sliding support (19) and the water pipeline, and the four sliding supports (19) are welded to the periphery of the water pipeline by fillet welds around the arc-shaped welded guard plate; the sliding supports (19) are mounted on the well frame (18).

7. The large water pipeline vertical installation support structure according to claim 6, characterized in that: Adding limit baffles (20) at both ends of the sliding support (19) on the sixth layer can limit the rotation of the water delivery pipe.

8. The large water pipeline vertical installation support structure according to claim 1, characterized in that: The fifth layer is supported by a fourth support assembly (11), which includes a crisscross frame (18) and four fixed supports (21); an arc-shaped welded protective plate is provided at the connection between the fixed support (21) and the water pipeline, and the four fixed supports (21) are welded to the periphery of the water pipeline by fillet welds around the arc-shaped welded protective plate; the fixed supports (21) are welded on the crisscross frame (18), and the contact surfaces of the two are welded by fillet welds.

9. The large-scale water pipeline vertical installation support structure according to claim 1, characterized in that: The basement floor adopts a support form of a fifth support assembly (13), and the fifth support assembly (13) includes a cement support pier (22) and a third hoop (23); the groove of the cement support pier (22) wraps the outer area of ​​the third elbow (5), providing vertical and horizontal support forces for the third elbow (5); the third hoop (23) is used on the upper part of the cement support pier (22) to fix the third elbow (5).

10. The large water pipeline vertical installation support structure according to claim 9, characterized in that: A rubber pad is placed between the third hoop (23) and the third elbow (5), and a rubber pad is placed between the groove of the cement support pier (22) and the third elbow (5).

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