Integral type copious cooling pipe bracket manufacturing device

Abstract

The utility model discloses an integral type copious cooling pipe bracket manufacturing device, and belongs to the technical field of petrochemical engineering. The defects that in the prior art, due to the fact that a traditional cryogenic pipe bracket is in an up-down split type, a large amount of manpower and material resources need to be consumed in the producing, manufacturing and installing process, and the risk of cold leakage exists are overcome. A main body structure of the device comprises a prefabricated pipeline, a pipe bracket shell, a pipe bracket base and a fastening assembly, the pipe bracket shell is of a hollow structure and is installed on the pipe bracket base, the prefabricated pipeline penetrates through the pipe bracket shell, a left side end cover is installed at one end of the prefabricated pipeline, and a right side end cover is installed at the other end of the prefabricated pipeline; the fastening assembly sequentially penetrates through the right side end cover, the prefabricated pipeline and the left side end cover, and a cavity used for pouring foaming heat preservation materials is formed among the left side end cover, the inner surface of the pipe bracket shell, the right side end cover and the outer surface of the prefabricated pipeline. The utility model is mainly used for supporting and insulating cold conveying pipelines in petrochemical engineering, LNG (Liquefied Natural Gas) receiving stations and the like.

Description

Technical Field

[0001] This utility model belongs to the field of petrochemical technology, and more specifically, it relates to an integral cryogenic pipe support manufacturing device. Background Technology

[0002] Cryogenic pipe supports are primarily used for supporting and insulating cold-transport pipelines in petrochemical plants, LNG receiving terminals, and other applications, supporting the pipelines while reducing heat loss. With increasing global demands for energy efficiency and environmental protection, reducing heat loss has become a crucial task in industrial and construction sectors. Cryogenic pipelines generate convective heat dissipation during media transmission, leading to heat loss. Cryogenic pipe supports, through their highly efficient insulation properties, can effectively reduce heat loss and improve energy utilization efficiency.

[0003] With the rapid development of my country's petrochemical, LNG energy storage and transportation industries, more cryogenic pipe supports are being used for the transportation of various low-temperature media, and the demand for cryogenic pipe supports is increasing year by year. At present, the cryogenic pipe supports commonly used in the market are mainly of the upper and lower split type. When manufacturing, manufacturers need to cut the insulation material into upper and lower parts, and also need to carry out processes such as gluing, applying moisture-proof layer, and bolting the upper and lower shells. During on-site construction, the upper and lower parts also need to be separated, fastened, glued, and bolted. Therefore, the production and installation process often requires a lot of manpower and material resources, and there is a certain risk of cold leakage (cold energy leaks from the gaps). Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an integral cryogenic tube support manufacturing device.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] An integral cryogenic pipe support fabrication device includes a prefabricated pipe, a pipe support shell, a pipe support base, and fastening components. The pipe support shell is a hollow structure and is mounted on the pipe support base. The prefabricated pipe passes through the pipe support shell, with a left end cap installed at one end and a right end cap installed at the other end. The fastening components pass through the right end cap, the prefabricated pipe, and the left end cap in sequence. The left end cap, the inner surface of the pipe support shell, the right end cap, and the outer surface of the prefabricated pipe form a cavity for pouring foamed insulation material.

[0007] Preferably, the fastening assembly includes a fastening screw and a nut. The fastening screw passes through the right end cover, the prefabricated pipe and the left end cover in sequence, and both ends of the fastening screw are tightened by nuts.

[0008] Preferably, the inner surface of the tube support housing is welded with an anti-detachment block.

[0009] Preferably, both the left and right end caps are provided with N guide positioning posts for guiding and positioning with the tube support housing, where N is a positive integer ≥2.

[0010] Preferably, N guide positioning posts are evenly distributed and welded along the circumferential direction of the left end cover and the right end cover.

[0011] Preferably, the left end cap has an exhaust hole.

[0012] Preferably, the pipe support housing is welded to the pipe support base.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Anti-detachment blocks are welded to the outer surface of the precast pipe and the inner surface of the pipe support shell. After the foamed insulation material is poured, the precast pipe and the pipe support shell can be combined together. When the pipe is subjected to axial thrust, the foamed insulation material is prevented from separating from the precast pipe and the pipe support shell.

[0015] 2. The entire device is fastened using fastening screws and nuts, which is convenient, efficient and easy to operate. After curing and molding, the nuts and fastening screws are removed, and the left and right end caps are removed to complete the fabrication of the integral cryogenic tube support.

[0016] 3. During the casting process, the entire device is operated vertically with the left end cap facing upwards. There is an exhaust hole on the left end cap. During the foaming process, the air in the cavity can be discharged from the exhaust hole on the left end cap to prevent excessive air from remaining in the foaming cavity, which could cause excessive internal pressure and leakage. It can also reduce the occurrence of large air bubbles remaining inside the foamed insulation material of the molded product.

[0017] 4. In this utility model, the prefabricated pipe is pre-cast together with the cryogenic pipe support. On-site construction only requires welding it to the on-site pipeline. After the foaming material is poured, the left and right end caps and the pipe support shell are quickly pressed together with the fastening screws and nuts to prevent leakage of high-pressure foaming material. After the polyurethane foaming material has matured, the left and right end caps are separated from the casting material to complete the manufacturing process of the integral cryogenic pipe support. The left and right end caps can be reused for the manufacture of cryogenic pipe supports of the same size.

[0018] In summary, by tightening the screws and nuts, the left and right end caps and the pipe support shell are fixed together to form a casting cavity. After the castable material has cured in the cavity, the screws, nuts, and end caps are removed, and the integral cryogenic pipe support is completed. Compared with the existing split-type manufacturing method of cryogenic pipe supports, this method eliminates the need for cutting, gluing, and applying moisture-proof layers. On-site construction only requires welding the two ends of the prefabricated pipe, and there are no gaps or cracks, reducing the risk of cold leakage. Furthermore, the modular manufacturing method improves production efficiency, reduces construction difficulty, and enhances product performance. This invention is applicable to the manufacturing of cryogenic pipe supports for petrochemical and LNG receiving stations. The product is simple to manufacture, has high production efficiency, good insulation effect, and can greatly reduce on-site construction difficulty, reduce project costs, and accelerate project progress. Attached Figure Description

[0019] Figure 1 This is an exploded view of the present invention;

[0020] Figure 2 This is the front view of the present invention;

[0021] Figure 3 This is a molding diagram of the present invention during casting.

[0022] In the diagram: 1. Precast pipe; 2. Pipe support shell; 3. Left end cap; 4. Pipe support base; 5. Anti-detachment block; 6. Guide positioning post; 7. Fastening screw; 8. Nut; 9. Right end cap; 10. Foamed insulation material; 31. Vent. Detailed Implementation

[0023] The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

[0024] Example 1:

[0025] like Figure 1-3 As shown, an integral cryogenic pipe support manufacturing device includes a prefabricated pipe 1, a pipe support shell 2, a pipe support base 4, and fastening components. The pipe support shell 2 is a hollow structure and is mounted on the pipe support base 4. The prefabricated pipe 1 passes through the pipe support shell 2, and a left end cap 3 is installed at one end of the prefabricated pipe 1, and a right end cap 9 is installed at the other end. The fastening components pass through the right end cap 9, the prefabricated pipe 1, and the left end cap 3 in sequence. The left end cap 3, the inner surface of the pipe support shell 2, the right end cap 9, and the outer surface of the prefabricated pipe 1 form a cavity for pouring foamed insulation material 10.

[0026] In this embodiment, the length of the prefabricated pipe 1 should exceed the length of both ends of the foamed insulation material 10 by 200mm to prevent the excessively high temperature generated during on-site welding from damaging the foamed insulation material 10; the sealing end faces of the left end cap 3, the right end cap 9, and the pipe support shell 2 are all milled flat to ensure that there is no leakage of material when the sealing surface is in contact with the assembly during the foaming process.

[0027] Example 2:

[0028] An integrated cryogenic pipe support manufacturing device differs from Embodiment 1 in that the fastening assembly includes a fastening screw 7 and a nut 8. The fastening screw 7 is sequentially installed through the right end cap 9, the prefabricated pipe 1, and the left end cap 3, and both ends of the fastening screw 7 are tightened by the nuts 8. After the nuts 8 are tightened, the prefabricated pipe 1, the pipe support housing 2, the left end cap 3, and the right end cap 9 form a cavity. The poured foam material is cured and formed in the cavity. After removing the fastening screw 7, the nut 8, the left end cap 3, and the right end cap 9, the integrated cryogenic pipe support product is obtained.

[0029] Furthermore, anti-detachment blocks 5 are welded to the outer surface of the precast pipe 1 and the inner surface of the pipe support shell 2. After the foamed insulation material 10 is cured and formed, the pipe support shell 2, the foamed insulation material 10 and the precast pipe 1 are combined together. Therefore, the anti-detachment blocks 5 can prevent the precast pipe 1 and the foamed insulation material 10 from sliding relative to each other under the action of the axial force of the pipe after the cryogenic pipe support is used on site.

[0030] Furthermore, both the left end cap 3 and the right end cap 9 are provided with N guide positioning posts 6 for guiding and positioning with the pipe support housing 2. The N guide positioning posts 6 are evenly distributed and welded along the circumference of the left end cap 3 and the right end cap 9, where N is a positive integer ≥ 2. The guide positioning posts 6 play a guiding and positioning role during the assembly process with the pipe support housing 2, which can quickly complete the assembly process.

[0031] Furthermore, an exhaust hole 31 is provided on the left end cap 3. During the casting process, the entire device is operated vertically with the left end cap 3 facing upwards. An exhaust hole 31 is provided on the left end cap 3. During the foaming process, the air in the cavity can be discharged from the exhaust hole 31 of the left end cap 3, preventing excessive air from remaining in the foaming cavity, which could cause excessive internal pressure and leakage. It can also reduce the occurrence of large air bubbles remaining inside the foamed insulation material 10 of the molded product.

[0032] Furthermore, the pipe support housing 2 is welded to the pipe support base 4 to provide support for the pipeline.

[0033] The working principle of this utility model is as follows:

[0034] Before pouring, pass the fastening screw 7 through the center hole of the right end cover 9 and tighten the nut 8. Place the right end cover 9 vertically and suspend the precast pipe 1. Slowly insert the lower part of the pipe 1 into the inner hole of the right end cover 9. The pipe support shell 2 and the pipe support base 4 are pre-welded. Suspend the pipe support shell 2 so that its interior passes through the precast pipe 1. Guided by the circumferential guide positioning post 6 on the right end cover 9, it is combined with the upper surface of the right end cover 9. Then, pour the foamed insulation material 10. After pouring, immediately remove the suspension... The left end cap 3 passes through the fastening screw 7, and the guide positioning post 6 in the circumferential direction of the left end cap 3 quickly engages with the upper end face of the pipe support shell 2. The nut 8 on the upper part of the left end cap 3 is then quickly tightened, and the refractory material in the cavity undergoes a foaming reaction. After the entire device has been allowed to stand still for a certain period of time, the nut 8, fastening screw 7, left end cap 3, and right end cap 9 are removed. The remaining prefabricated pipe 1, pipe support shell 2, pipe support base 4, and foamed insulation material 10 form an integral cryogenic pipe support, thus completing the entire manufacturing process. The resulting integral cryogenic pipe support fundamentally solves the problems of complex manufacturing, low production efficiency, and the risk of cold leakage associated with cryogenic pipe supports. It also reduces on-site construction difficulty, improves the accuracy and efficiency of on-site installation, and ensures the construction progress of the overall pipeline and equipment.

Claims

1. An integral cryogenic tube support manufacturing device, characterized in that: The device includes a prefabricated pipe (1), a pipe support housing (2), a pipe support base (4), and fastening components. The pipe support housing (2) is a hollow structure and is installed on the pipe support base (4). The prefabricated pipe (1) passes through the pipe support housing (2). One end of the prefabricated pipe (1) is equipped with a left end cap (3), and the other end is equipped with a right end cap (9). The fastening components pass through the right end cap (9), the prefabricated pipe (1), and the left end cap (3) in sequence. The left end cap (3), the inner surface of the pipe support housing (2), the right end cap (9), and the outer surface of the prefabricated pipe (1) form a cavity for pouring foamed insulation material (10).

2. The integral cryogenic tube support manufacturing device according to claim 1, characterized in that: The fastening assembly includes a fastening screw (7) and a nut (8). The fastening screw (7) passes through the right end cap (9), the prefabricated pipe (1) and the left end cap (3) in sequence, and both ends of the fastening screw (7) are tightened by the nut (8).

3. The integral cryogenic tube support manufacturing device according to claim 2, characterized in that: The inner surface of the tube support housing (2) is welded with an anti-detachment block (5).

4. The integral cryogenic tube support manufacturing apparatus according to any one of claims 1-3, characterized in that: Both the left end cap (3) and the right end cap (9) are provided with N guide positioning posts (6) for guiding and positioning with the tube support housing (2), where N is a positive integer ≥2.

5. The integral cryogenic tube support manufacturing apparatus according to claim 4, characterized in that: N guide positioning posts (6) are evenly distributed and welded along the circumference of the left end cap (3) and the right end cap (9).

6. The integral cryogenic tube support manufacturing apparatus according to any one of claims 1-3, characterized in that: An exhaust hole (31) is provided on the left end cap (3).

7. The integral cryogenic tube support manufacturing apparatus according to any one of claims 1-3, characterized in that: The pipe support housing (2) is welded to the pipe support base (4).

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