Cryogenic working condition prefabricated cold insulation pipe with damping structure

Abstract

The utility model provides a cryogenic working condition prefabricated cold insulation pipe with a damping structure, which comprises a U-shaped mounting frame, the damping mechanism is arranged on the inner side of the U-shaped mounting frame, a cryogenic working condition prefabricated cold insulation pipe body is inserted into the damping mechanism, and protective rods are fixedly mounted on two sides of an inner cavity of the U-shaped mounting frame. The U-shaped mounting frame is arranged for mounting the damping mechanism and the protective rod, and the protective rod is arranged for avoiding the problem that danger is caused by leakage of a cryogenic medium due to breakage and cracking of the cryogenic working condition prefabricated cold insulation pipe body caused by large shaking of the cryogenic working condition prefabricated cold insulation pipe body; through the arrangement of the damping mechanism, installation of the prefabricated cold insulation pipe body under the cryogenic working condition is achieved, and meanwhile the problem that subsequent use is affected due to pipeline vibration damage caused by pressure changes when the prefabricated cold insulation pipe body under the cryogenic working condition conveys a cryogenic medium to be closed and opened is solved.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated cold insulation pipes for cryogenic conditions, specifically to a prefabricated cold insulation pipe for cryogenic conditions with a shock-absorbing structure. Background Technology

[0002] Cryogenic prefabricated insulated pipes are a type of piping system specifically designed for operation in extremely low temperature environments. They are mainly used to transport cryogenic media such as liquid nitrogen and liquid oxygen. Their core feature is the use of a multi-layer composite structure, including a working pipe, an insulation layer, and an outer protective layer, to ensure good insulation performance and structural integrity at extremely low temperatures.

[0003] When transporting cryogenic media, prefabricated cold-insulated pipes for cryogenic conditions experience pipe contraction due to the low temperature. Simultaneously, the low temperature increases the pipe's hardness, leading to brittleness. In actual use, the pipes need to be opened and closed during cryogenic media transport. The pressure changes during these opening and closing cycles cause pipe vibration, which, combined with the hardening at low temperatures, can lead to pipe rupture and damage. This ultimately affects the subsequent transport of cryogenic media and fails to meet practical application requirements. Utility Model Content

[0004] The present invention aims to solve the problems mentioned in the background art by providing a prefabricated cold insulation pipe with a shock-absorbing structure for cryogenic conditions.

[0005] The specific technical solution is as follows:

[0006] A prefabricated cold insulation pipe for cryogenic conditions with a shock-absorbing structure includes a U-shaped mounting bracket. A shock-absorbing mechanism is provided on the inner side of the U-shaped mounting bracket. The prefabricated cold insulation pipe body for cryogenic conditions is inserted inside the shock-absorbing mechanism. Protective rods are fixedly installed on both sides of the inner cavity of the U-shaped mounting bracket.

[0007] The damping mechanism includes a semi-circular placement frame located inside the U-shaped mounting bracket and below the prefabricated cold insulation pipe body for cryogenic conditions. A semi-circular fixing frame is located inside the U-shaped mounting bracket and at the top of the prefabricated cold insulation pipe body for cryogenic conditions. Connecting blocks are fixedly installed on both sides of the semi-circular fixing frame and the semi-circular placement frame. A damper is located inside the U-shaped mounting bracket and below the semi-circular placement frame. Movable hinges are movably connected to the top and bottom of the damper. The movable hinges are fixedly connected to the bottom of the semi-circular placement frame and the bottom of the inner cavity of the U-shaped mounting bracket, respectively.

[0008] In a preferred embodiment of this utility model, a third bolt is inserted inside the connecting block, and the two connecting blocks are fixedly connected by the third bolt.

[0009] As a preferred embodiment of this utility model, the inner cavity of the U-shaped mounting bracket is provided with sliding grooves on both sides, and a slider is slidably connected inside the sliding groove. One side of the slider is fixedly connected to the connecting blocks on both sides of the semi-circular mounting bracket.

[0010] In a preferred embodiment of this utility model, a spring is fixedly installed at the bottom of the slider, and the bottom of the spring contacts the bottom of the inner cavity of the slide groove.

[0011] As a preferred embodiment of this utility model, a limiting cavity is formed inside the connecting blocks on both sides of the semi-circular placement frame, and a limiting rod is inserted inside the limiting cavity. The bottom of the limiting rod is fixedly connected to the bottom side of the inner cavity of the U-shaped mounting frame.

[0012] As a preferred embodiment of this utility model, L-shaped mounting brackets are fixedly installed on both sides of the bottom of the U-shaped mounting bracket, and a T-shaped mounting bracket is provided at the bottom of the L-shaped mounting bracket. Two first bolts are inserted inside the L-shaped mounting bracket, and the bottom of the first bolts extends into the interior of the T-shaped mounting bracket and is connected to the T-shaped mounting bracket by threads.

[0013] As a preferred embodiment of this utility model, a second bolt is inserted at both the top and bottom of the right side of the T-shaped mounting bracket.

[0014] This utility model has the following beneficial effects:

[0015] 1. The prefabricated cryogenic insulation pipe with a shock-absorbing structure provided by this utility model uses a U-shaped mounting bracket to install the shock-absorbing mechanism and protective rod. The protective rod prevents the prefabricated cryogenic insulation pipe from shaking excessively, which could lead to breakage and leakage of cryogenic medium, causing danger. The shock-absorbing mechanism is used to install the prefabricated cryogenic insulation pipe and also to prevent pressure changes during the delivery of cryogenic medium to and from closing and opening the pipe, which could cause vibration damage and affect subsequent use.

[0016] 2. The cryogenic prefabricated cold insulation pipe with shock absorption structure provided by this utility model uses the cooperation between the semi-circular placement frame and the semi-circular fixing frame to clamp and fix the body of the cryogenic prefabricated cold insulation pipe, thereby increasing the stability of the body of the cryogenic prefabricated cold insulation pipe. The movable hinge is used to connect the top and bottom of the damper to the U-shaped mounting frame and the semi-circular placement frame respectively. The semi-circular placement frame is used to dampen the semi-circular placement frame to avoid the problem of frequent shaking caused by the resonance of the semi-circular placement frame, which could lead to the breakage and leakage of the cryogenic prefabricated cold insulation pipe body. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the prefabricated cold insulation pipe with shock absorption structure for cryogenic conditions provided in this embodiment of the utility model;

[0018] Figure 2 A schematic diagram of a U-shaped mounting bracket for a prefabricated cold insulation pipe with a shock-absorbing structure for cryogenic conditions, provided for an embodiment of this utility model;

[0019] Figure 3 A schematic diagram of the shock-absorbing mechanism of a prefabricated cold insulation pipe with a shock-absorbing structure for cryogenic conditions provided in this embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the installation mechanism of the U-shaped mounting bracket for the cryogenic prefabricated cold insulation pipe with shock absorption structure provided in this embodiment of the utility model.

[0021] In the attached diagram: 1. U-shaped mounting bracket; 2. Prefabricated cold insulation pipe body for cryogenic conditions; 3. Vibration damping mechanism; 301. Semi-circular placement bracket; 302. Semi-circular fixing bracket; 303. Connecting block; 304. Third bolt; 305. Sliding block; 306. Limiting cavity; 307. Spring; 308. Damper; 309. Limiting rod; 310. Slide groove; 311. Movable hinge; 4. L-shaped mounting bracket; 5. T-shaped mounting bracket; 6. First bolt; 7. Second bolt; 8. Protective rod. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; 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 refer to the internal communication of two components or the interaction between 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.

[0026] Example

[0027] The prefabricated cold insulation pipe with shock-absorbing structure provided in this embodiment is such as... Figures 1-4 As shown, the system includes a U-shaped mounting bracket 1, with a shock-absorbing mechanism 3 installed inside the U-shaped mounting bracket 1. A cryogenic prefabricated cold insulation pipe body 2 is inserted inside the shock-absorbing mechanism 3. Protective rods 8 are fixedly installed on both sides of the inner cavity of the U-shaped mounting bracket 1. The U-shaped mounting bracket 1 is used to install the shock-absorbing mechanism 3 and the protective rods 8. The protective rods 8 are used to prevent the cryogenic prefabricated cold insulation pipe body 2 from shaking too much, which could cause it to break and crack, resulting in the leakage of cryogenic medium and causing danger. The shock-absorbing mechanism 3 is used to install the cryogenic prefabricated cold insulation pipe body 2 and to prevent the pipe body 2 from being damaged by pressure changes during the delivery of cryogenic medium to the opening and closing of the system, which could affect subsequent use.

[0028] The damping mechanism 3 includes a semi-circular mounting bracket 301 located inside the U-shaped mounting bracket 1 and below the prefabricated cold insulation pipe body 2 for cryogenic conditions. A semi-circular fixing bracket 302 is located inside the U-shaped mounting bracket 1 and at the top of the prefabricated cold insulation pipe body 2 for cryogenic conditions. Connecting blocks 303 are fixedly installed on both sides of the semi-circular fixing bracket 302 and the semi-circular mounting bracket 301. A damper 308 is located inside the U-shaped mounting bracket 1 and below the semi-circular mounting bracket 301. The top and bottom of the damper 308 are movably connected by movable hinges 311, which are respectively connected to the bottom of the semi-circular mounting bracket 301 and the U-shaped mounting bracket. The bottom of the inner cavity is fixedly connected, and the cooperation between the semi-circular placement bracket 301 and the semi-circular fixing bracket 302 is used to clamp and fix the prefabricated cold insulation pipe body 2 for cryogenic conditions, thereby increasing the stability of the prefabricated cold insulation pipe body 2 for cryogenic conditions. The movable hinge 311 is used to connect the top and bottom of the damper 308 to the U-shaped mounting bracket 1 and the semi-circular placement bracket 301 respectively. The semi-circular placement bracket 301 is used to dampen the semi-circular placement bracket 301 to avoid the problem of frequent shaking caused by the resonance of the semi-circular placement bracket 301, which could lead to the breakage and leakage of the prefabricated cold insulation pipe body 2 for cryogenic conditions.

[0029] A third bolt 304 is inserted inside the connecting block 303. The two connecting blocks 303 are fixedly connected by the third bolt 304. The third bolt 304 is used to connect the connecting blocks 303 on both sides of the semi-circular placement frame 301 and the semi-circular fixing frame 302, thereby realizing the connection between the semi-circular placement frame 301 and the semi-circular fixing frame 302, and realizing the clamping and fixing of the prefabricated cold insulation pipe body 2 under cryogenic conditions.

[0030] Both sides of the inner cavity of the U-shaped mounting bracket 1 are provided with sliding grooves 310. A slider 305 is slidably connected inside the sliding groove 310. One side of the slider 305 is fixedly connected to the connecting blocks 303 on both sides of the semi-circular placement bracket 301. The semi-circular placement bracket 301 is fixed relative to the U-shaped mounting bracket 1 through the cooperation between the slider 305 and the sliding groove 310. At the same time, the semi-circular placement bracket 301 can be lifted and buffered, thereby driving the lifting and lowering of the pre-fabricated cold insulation pipe body 2 in cryogenic conditions to avoid sudden changes in the internal pressure of the pre-fabricated cold insulation pipe body 2 in cryogenic conditions during opening and closing, which would cause vibration and damage to the pre-fabricated cold insulation pipe body 2 in cryogenic conditions.

[0031] A spring 307 is fixedly installed at the bottom of the slider 305. The bottom of the spring 307 contacts the bottom of the inner cavity of the slide groove 310. The spring 307 is used to offset and buffer the vibration generated by the semi-circular placement frame 301, thereby reducing the damage to the prefabricated cold insulation pipe body 2 caused by vibration in the cryogenic working condition.

[0032] Limiting cavities 306 are formed inside the connecting blocks 303 on both sides of the semi-circular placement frame 301. Limiting rods 309 are inserted inside the limiting cavities 306. The bottom of the limiting rods 309 is fixedly connected to the bottom side of the inner cavity of the U-shaped mounting frame 1. The limiting cavities 306 and the limiting rods 309 are used to stabilize the semi-circular placement frame 301 and the semi-circular fixing frame 302 to prevent the gap between the slider 305 and the groove 310 from causing the slider 305 to drive the semi-circular placement frame 301, the semi-circular fixing frame 302 and the cryogenic prefabricated cold insulation pipe body 2 to shake, which would lead to subsequent damage to the cryogenic prefabricated cold insulation pipe body 2.

[0033] Both sides of the bottom of the U-shaped mounting bracket 1 are fixedly mounted with L-shaped mounting brackets 4. The bottom of the L-shaped mounting bracket 4 is provided with a T-shaped mounting bracket 5. Two first bolts 6 are inserted inside the L-shaped mounting bracket 4. The bottom of the first bolts 6 extends into the interior of the T-shaped mounting bracket 5 and is connected to the T-shaped mounting bracket 5 by threads. The L-shaped mounting bracket 4 and the first bolts 6 are used to fix the U-shaped mounting bracket 1 directly to the ground. At the same time, the first bolts 6 can be used to install the T-shaped mounting bracket 5 to the bottom of the L-shaped mounting bracket 4, so as to facilitate the installation of the U-shaped mounting bracket 1 on a vertical fixed surface.

[0034] The top and bottom of the right side of the T-shaped mounting bracket 5 are both provided with second bolts 7. The second bolts 7 are used to fix the T-shaped mounting bracket 5 to the vertical surface to fix the U-shaped mounting bracket 1.

[0035] In use, depending on the installation environment, the U-shaped mounting bracket 1 can be installed onto a vertical surface using the L-shaped mounting bracket 4, the T-shaped mounting bracket 5, the first bolt 6, and the second bolt 7. Alternatively, the T-shaped mounting bracket 5 can be removed, and the U-shaped mounting bracket 1 can be directly installed to the ground using the first bolt 6 and the L-shaped mounting bracket 4. The cryogenic prefabricated cold-insulating pipe body 2 is placed inside the semi-circular placement bracket 301, and the semi-circular fixing bracket 302 is placed on top of the cryogenic prefabricated cold-insulating pipe body 2. The third bolt 304 is inserted into the interior of the two connecting blocks 303 to fix the connecting blocks 303, thereby fixing the semi-circular fixing bracket 302 to the top of the semi-circular placement bracket 301 and simultaneously securing the cryogenic prefabricated cold-insulating pipe body 2. When the opening and closing of the pre-fabricated cold insulation pipe body 2 under cryogenic conditions causes a change in the internal pressure of the pre-fabricated cold insulation pipe body 2 under cryogenic conditions, the pre-fabricated cold insulation pipe body 2 under cryogenic conditions vibrates. The vibration of the pre-fabricated cold insulation pipe body 2 under cryogenic conditions is transmitted to the spring 307 through the semi-circular placement frame 301, the connecting block 303 and the slider 305 for shock absorption. At the same time, the damper 308 installed at the bottom of the semi-circular placement frame 301 dampens the semi-circular placement frame 301 to prevent the semi-circular placement frame 301 from causing the pre-fabricated cold insulation pipe body 2 under cryogenic conditions to resonate with the spring 307, thereby reducing the problem of the pre-fabricated cold insulation pipe body 2 under cryogenic conditions becoming hard and brittle due to low temperature and breaking during vibration, which would lead to the leakage of cryogenic medium.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated cold pipe with a shock absorbing structure for cryogenic conditions, characterized in that, Including the U-shaped mounting frame (1), the inner side of the U-shaped mounting frame (1) is provided with a damping mechanism (3), the inside of the damping mechanism (3) is provided with a cryogenic working condition prefabricated cold insulation pipe body (2), both sides of the inner cavity of the U-shaped mounting frame (1) are fixedly installed with a protection rod (8); The damping mechanism (3) includes a semicircular placing rack (301) arranged on the inner side of the U-shaped mounting frame (1) below the cryogenic working condition prefabricated cold insulation pipe body (2), and a semicircular fixing rack (302) arranged on the inner side of the U-shaped mounting frame (1) at the top of the cryogenic working condition prefabricated cold insulation pipe body (2), both sides of the semicircular fixing rack (302) and the semicircular placing rack (301) are fixedly installed with a connecting block (303), and the inner side of the U-shaped mounting frame (1) below the semicircular placing rack (301) is provided with a damper (308), and the top and bottom of the damper (308) are movably connected with a movable hinge (311), and the movable hinge (311) is fixedly connected with the bottom of the semicircular placing rack (301) and the bottom of the inner cavity of the U-shaped mounting frame (1) respectively.

2. The cryogenic service pre-insulated pipe with a shock absorbing structure according to claim 1, characterized in that, The inside of the connecting block (303) is provided with a third bolt (304), and the two connecting blocks (303) are fixedly connected through the third bolt (304).

3. The cryogenic service pre-insulated pipe with a shock absorbing structure according to claim 1, characterized in that, Both sides of the inner cavity of the U-shaped mounting frame (1) are provided with a sliding groove (310), and the sliding groove (310) is slidably connected with a sliding block (305), and one side of the sliding block (305) is fixedly connected with the connecting block (303) on both sides of the semicircular placing rack (301).

4. The cryogenic service pre-insulated pipe with a shock absorbing structure according to claim 3, characterized in that, The bottom of the sliding block (305) is fixedly installed with a spring (307), and the bottom of the spring (307) is in contact with the bottom of the inner cavity of the sliding groove (310).

5. The cryogenic service pre-insulated pipe with a shock absorbing structure according to claim 1, characterized in that, The connecting block (303) on both sides of the semicircular placing rack (301) is provided with a limiting cavity (306) inside, the limiting cavity (306) is provided with a limiting rod (309) inside, and the bottom of the limiting rod (309) is fixedly connected with the bottom side of the inner cavity of the U-shaped mounting frame (1).

6. The cryogenic service pre-insulated pipe with a shock absorbing structure according to claim 1, characterized in that, Both sides of the bottom of the U-shaped mounting frame (1) are fixedly installed with an L-shaped mounting frame (4), the bottom of the L-shaped mounting frame (4) is provided with a T-shaped mounting frame (5), the inside of the L-shaped mounting frame (4) is provided with two first bolts (6), and the bottom of the first bolt (6) extends to the inside of the T-shaped mounting frame (5) and is connected between the T-shaped mounting frame (5) through threads.

7. The cryogenic service pre-insulated pipe with a shock absorbing structure according to claim 6, characterized in that, The top and bottom of the right side of the T-shaped mounting frame (5) are provided with a second bolt (7).

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