A thermal insulation structure for chemical pipelines to prevent crystallization

The combination of arc-shaped connecting plates and connecting blocks enables the detachable installation and cleaning of the anti-crystallization chemical pipeline insulation structure, solving the problem of reduced insulation effect caused by insulation layer wear and ensuring the stable operation of chemical pipelines.

CN224283990UActive Publication Date: 2026-05-26LINYI SHENGTAI POLYMER MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LINYI SHENGTAI POLYMER MATERIALS CO LTD
Filing Date
2025-07-23
Publication Date
2026-05-26

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Abstract

This utility model relates to the field of chemical pipeline technology, specifically to an anti-crystallization chemical pipeline insulation structure, comprising: a pipe body including an anti-crystallization pipeline; and a connecting mechanism including a first arc-shaped connecting plate, the first arc-shaped connecting plate acting on the surface of the anti-crystallization pipeline, and a first insulation cotton pad fixedly connected to the surface of the first arc-shaped connecting plate. This utility model, through the connection of the first arc-shaped connecting plate and the mounting block, allows the first arc-shaped connecting plate and the second arc-shaped connecting plate to be installed on the surface of the anti-crystallization pipeline, so that the connecting block is installed on the surface of the mounting block, allowing the connecting base to be inserted into the mounting block, and allowing the limiting buckle to deform and engage at the mounting block, thereby fixing the installation position of the first arc-shaped connecting plate and the second arc-shaped connecting plate for insulation treatment of the anti-crystallization pipeline. Conversely, the first arc-shaped connecting plate and the second arc-shaped connecting plate can be disassembled to ensure the insulation efficiency of the anti-crystallization pipeline.
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Description

Technical Field

[0001] This utility model relates to the field of chemical pipeline technology, specifically to an anti-crystallization chemical pipeline insulation structure. Background Technology

[0002] Anti-crystallization chemical pipelines are special industrial pipes designed to prevent crystal deposition and blockage. Their core lies in inhibiting the precipitation and adhesion of crystalline substances in the transported medium through material properties, structural design, or surface treatment technology.

[0003] Anti-crystallization chemical pipeline insulation structure is a specially designed composite insulation system. Its core function is to maintain the temperature of the medium inside the pipeline above its crystallization point or freezing point, preventing the medium from crystallizing, solidifying, or blocking the pipeline due to temperature drop. This structure is usually composed of multiple layers of composite materials, combined with insulation and heat tracing technology, to ensure the safety and stability of the pipeline in low-temperature environments or during intermittent operation. However, when using existing pipeline insulation structures, the insulation layer is fixed to the pipeline surface and cannot be replaced. With prolonged use, the insulation cotton in the insulation layer will wear down, the insulation effect will decrease, and the operational stability of the chemical pipeline will be affected. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-crystallization chemical pipeline insulation structure to solve the problem that when the pipeline insulation structure proposed in the background art is used, its insulation layer is fixed on the pipeline surface and cannot be replaced. With long-term use, the insulation cotton in the insulation layer will wear down, the insulation effect will decrease, and the operational stability of the chemical pipeline will be affected.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a thermal insulation structure for anti-crystallization chemical pipelines, comprising:

[0006] Pipe body, including anti-crystallization pipe;

[0007] The connecting mechanism includes a first arc-shaped connecting plate, which acts on the surface of the anti-crystallization pipe. A first thermal insulation pad is fixedly connected to the surface of the first arc-shaped connecting plate, and an installation block is fixedly connected to the surface of the first arc-shaped connecting plate. A second arc-shaped connecting plate is provided on the surface of the anti-crystallization pipe, and a second thermal insulation pad is fixedly connected to the surface of the second arc-shaped connecting plate. A connecting block is fixedly connected to the surface of the connecting block, and a limit buckle is fixedly connected to the surface of the connecting base.

[0008] Preferably, the first thermal insulation pad is connected to the surface of the anti-crystallization pipe by abutting through the first arc-shaped connecting plate, and the second thermal insulation pad is connected to the surface of the anti-crystallization pipe by abutting through the second arc-shaped connecting plate.

[0009] Preferably, the mounting blocks are evenly distributed in four groups on the surface of the first arc-shaped connecting plate, and the connecting blocks are evenly distributed in four groups on the surface of the second arc-shaped connecting plate. The connecting blocks are connected by abutting the surfaces of the second arc-shaped connecting plate and the mounting blocks.

[0010] Preferably, the connecting base is connected by surface interlocking of the connecting block and the mounting block, and the limiting buckles are evenly distributed in four groups on the surface of the connecting base, and the limiting buckles are connected by surface interlocking of the connecting base and the mounting block.

[0011] Preferably, the cleaning mechanism includes a connecting groove, which is fixedly connected to the surface of the anti-crystallization pipe. An adjustment knob is rotatably connected to the surface of the connecting groove. A connecting threaded rod is fixedly connected to the surface of the adjustment knob. A connecting shaft is threadedly sleeved onto the surface of the connecting threaded rod. A cleaning ring is rotatably connected to the surface of the connecting shaft. A limit block is fixedly connected to the surface of the cleaning ring. A guide groove is provided inside the anti-crystallization pipe.

[0012] Preferably, the connecting threaded rod is rotatably connected to the inside of the connecting groove via an adjusting knob, and the connecting shaft is movably connected to the inside of the anti-crystallization pipe via the connecting threaded rod.

[0013] Preferably, the cleaning ring is internally and movably connected to the anti-crystallization pipe via a connecting shaft, and the limiting block is externally and movably connected to the guide groove via the cleaning ring.

[0014] Preferably, the cleaning ring is abutted and connected inside the anti-crystallization pipe, and the cleaning ring is rotatably connected to the surface of the guide groove and the connecting shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By connecting the first arc-shaped connecting plate and the mounting block, and the second arc-shaped connecting plate and the connecting block, the first arc-shaped connecting plate and the second arc-shaped connecting plate can be installed on the surface of the anti-crystallization pipe, so that the connecting block is installed on the surface of the mounting block. Then, by connecting the connecting block and the connecting base, and the mounting block and the connecting base, the connecting base can be inserted into the mounting block. By connecting the connecting base and the limiting buckle, and the mounting block and the limiting buckle, the limiting buckle can be deformed and locked into the mounting block, thereby fixing the installation position of the first arc-shaped connecting plate and the second arc-shaped connecting plate. Then, by connecting the first arc-shaped connecting plate and the first insulation cotton pad, and the second arc-shaped connecting plate and the second insulation cotton pad, the anti-crystallization pipe is insulated. Conversely, the first arc-shaped connecting plate and the second arc-shaped connecting plate can be disassembled to ensure the insulation efficiency of the anti-crystallization pipe.

[0017] 2. By connecting the connecting groove and the adjusting knob, and then connecting the adjusting knob and the connecting threaded rod, the connecting threaded rod can rotate with the adjustment knob. Then, by connecting the connecting threaded rod and the connecting shaft, and then connecting the connecting shaft and the cleaning ring, the connecting shaft and the cleaning ring can move inside the anti-crystallization pipe as the connecting threaded rod rotates. Finally, by connecting the cleaning ring and the limiting block, and then connecting the limiting block and the guide groove, the cleaning ring can rotate on the surface of the connecting shaft while moving, thereby improving the scraping efficiency of damp impurities on the inner wall of the anti-crystallization pipe and achieving the effect of cleaning the inner wall of the anti-crystallization pipe. Attached Figure Description

[0018] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0019] Figure 2 This is a frontal three-dimensional exploded view of the structure of this utility model;

[0020] Figure 3 This is a partial three-dimensional sectional view of the connection structure between the first arc-shaped connecting plate and the second arc-shaped connecting plate of this utility model;

[0021] Figure 4 This is a three-dimensional sectional view of the connection structure of the anti-crystallization pipe and connecting groove of this utility model;

[0022] Figure 5 This is a three-dimensional partial sectional view of the connection structure of the connecting shaft and the cleaning ring of this utility model.

[0023] In the diagram: 1. Anti-crystallization pipe; 2. First arc-shaped connecting plate; 21. First insulation pad; 22. Mounting block; 23. Second arc-shaped connecting plate; 24. Second insulation pad; 25. Connecting block; 26. Connecting base; 27. Limiting buckle; 3. Connecting groove; 31. Adjusting knob; 32. Connecting threaded rod; 33. Connecting shaft; 34. Cleaning ring; 35. Limiting block; 36. Guide groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 One embodiment provided by this utility model:

[0026] A thermal insulation structure for preventing crystallization in chemical pipelines, comprising:

[0027] The pipe body, including the anti-crystallization pipe 1, is an existing product and is not considered a technical protection point of this application. Therefore, it will not be described in detail here.

[0028] The connecting mechanism includes a first arc-shaped connecting plate 2, which acts on the surface of the anti-crystallization pipe 1 and is used to cooperate with a second arc-shaped connecting plate 23 installed on the surface of the anti-crystallization pipe 1. A first thermal insulation pad 21 is fixedly connected to the surface of the first arc-shaped connecting plate 2 for thermal insulation of the anti-crystallization pipe 1. An installation block 22 is fixedly connected to the surface of the first arc-shaped connecting plate 2 for installing a connecting block 25. A second arc-shaped connecting plate 23 is provided on the surface of the anti-crystallization pipe 1 and is used to cooperate with the first arc-shaped connecting plate 2 for installation on the surface of the anti-crystallization pipe 1. A second thermal insulation pad 24 is fixedly connected to the surface of the second arc-shaped connecting plate 23 for thermal insulation of the anti-crystallization pipe 1. A connecting block 25 is fixedly connected to the surface of the second arc-shaped connecting plate 23 for connecting a connecting base 26. A connecting base 26 is fixedly connected to the surface of the connecting block 25 for connecting a limiting buckle 27. A limiting buckle 27 is fixedly connected to the surface of the connecting base 26 for engaging with the installation block 22 through its own deformation.

[0029] Furthermore, the first thermal insulation pad 21 is connected to the surface of the anti-crystallization pipe 1 by the first arc-shaped connecting plate 2, and the second thermal insulation pad 24 is connected to the surface of the anti-crystallization pipe 1 by the second arc-shaped connecting plate 23. The first arc-shaped connecting plate 2 and the second arc-shaped connecting plate 23 are installed on the surface of the anti-crystallization pipe 1, so that the first thermal insulation pad 21 and the second thermal insulation pad 24 are pressed against the surface of the anti-crystallization pipe 1, thereby providing thermal insulation for the anti-crystallization pipe 1.

[0030] Furthermore, the mounting blocks 22 are evenly distributed in four groups on the surface of the first arc-shaped connecting plate 2, and the connecting blocks 25 are evenly distributed in four groups on the surface of the second arc-shaped connecting plate 23. The four groups of mounting blocks 22 are used to connect the four groups of connecting blocks 25. The connecting blocks 25 are connected by abutting the surfaces of the second arc-shaped connecting plate 23 and the mounting blocks 22. The first arc-shaped connecting plate 2 and the second arc-shaped connecting plate 23 are installed on the surface of the anti-crystallization pipe 1, so that the connecting blocks 25 are installed on the surface of the mounting blocks 22.

[0031] Furthermore, the connecting base 26 is connected to the surface of the connecting block 25 and the mounting block 22 by surface insertion. The limiting buckles 27 are evenly distributed in four groups on the surface of the connecting base 26. The limiting buckles 27 are connected to the surface of the connecting base 26 and the mounting block 22 by surface engagement. The connecting block 25 is installed on the surface of the mounting block 22, so that the connecting base 26 is inserted into the mounting block 22, thereby causing the limiting buckles 27 to deform and engage at the mounting block 22, thereby fixing the installation position of the first arc-shaped connecting plate 2 and the second arc-shaped connecting plate 23.

[0032] Furthermore, the cleaning mechanism includes a connecting groove 3, which is fixedly connected to the surface of the anti-crystallization pipe 1 for connecting a connecting threaded rod 32. An adjusting knob 31 is rotatably connected to the surface of the connecting groove 3 for driving the connecting threaded rod 32 to rotate. The connecting threaded rod 32 is fixedly connected to the surface of the adjusting knob 31 for driving the connecting shaft 33 to move through its own rotation. The connecting shaft 33 is threadedly sleeved onto the surface of the connecting threaded rod 32 for connecting a cleaning ring 34. The cleaning ring 34 is rotatably connected to the surface of the connecting shaft 33 for scraping away damp impurities from the inner wall of the anti-crystallization pipe 1. A limiting block 35 is fixedly connected to the surface of the cleaning ring 34 for limiting the movement position of the cleaning ring 34. A guide groove 36 is provided inside the anti-crystallization pipe 1 for connecting the limiting block 35.

[0033] Furthermore, the connecting threaded rod 32 is internally rotated and connected to the connecting groove 3 via the adjusting knob 31, and the connecting shaft 33 is internally movable and connected to the anti-crystallization pipe 1 via the connecting threaded rod 32. Rotating the adjusting knob 31 drives the connecting threaded rod 32 to rotate, thereby causing the connecting shaft 33 to drive the cleaning ring 34 to move inside the anti-crystallization pipe 1.

[0034] Furthermore, the cleaning ring 34 is internally and movably connected to the anti-crystallization pipe 1 via the connecting shaft 33, and the limiting block 35 is movably connected to the surface of the cleaning ring 34 and the guide groove 36. The cleaning ring 34 moves along with the connecting shaft 33, causing the limiting block 35 to move in the guide groove 36.

[0035] Furthermore, the cleaning ring 34 is abutted and connected inside the anti-crystallization pipe 1. The cleaning ring 34 is rotatably connected to the surface of the connecting shaft 33 via the guide groove 36. The limiting block 35 moves at the guide groove 36, causing the cleaning ring 34 to rotate back and forth on the surface of the connecting shaft 33, thereby rotating and scraping away moisture and impurities from the inner wall of the anti-crystallization pipe 1 to prevent the attachments from causing rust and crystallization. The connecting shaft 33, the cleaning ring 34, and the limiting block 35 are all made of acid and alkali resistant materials, such as PTFE.

[0036] Working principle: When using the anti-crystallization pipe 1, firstly, the first arc-shaped connecting plate 2 and the second arc-shaped connecting plate 23 are installed on the surface of the anti-crystallization pipe 1, so that the connecting block 25 is installed on the surface of the mounting block 22, and the connecting base 26 is inserted into the mounting block 22, so that the limiting buckle 27 deforms and engages at the mounting block 22, thereby fixing the installation position of the first arc-shaped connecting plate 2 and the second arc-shaped connecting plate 23, so that the first insulation cotton pad 21 and the second insulation cotton pad 24 are pressed against the surface of the anti-crystallization pipe 1, thereby providing insulation for the anti-crystallization pipe 1. Then, the inner wall of the anti-crystallization pipe 1 is cleaned. By rotating the adjusting knob 31, the connecting threaded rod 32 is rotated, so that the connecting shaft 33 drives the cleaning ring 34 to move inside the anti-crystallization pipe 1, thereby driving the limiting block 35 to move in the guide groove 36. The limiting block 35 moves in the guide groove 36, so that the cleaning ring 34 rotates back and forth on the surface of the connecting shaft 33, thereby rotating and scraping away moisture and impurities from the inner wall of the anti-crystallization pipe 1, preventing the attachment of substances from causing rust and crystallization.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A thermal insulation structure for preventing crystallization in chemical pipelines, characterized in that, include: Pipe body, including anti-crystallization pipe (1); The connecting mechanism includes a first arc-shaped connecting plate (2), which acts on the surface of the anti-crystallization pipe (1). A first heat-insulating cotton pad (21) is fixedly connected to the surface of the first arc-shaped connecting plate (2), and an installation block (22) is fixedly connected to the surface of the first arc-shaped connecting plate (2). A second arc-shaped connecting plate (23) is provided on the surface of the anti-crystallization pipe (1). A second heat-insulating cotton pad (24) is fixedly connected to the surface of the second arc-shaped connecting plate (23). A connecting block (25) is fixedly connected to the surface of the second arc-shaped connecting plate (23). A connecting base (26) is fixedly connected to the surface of the connecting block (25), and a limit buckle (27) is fixedly connected to the surface of the connecting base (26).

2. The anti-crystallization chemical pipeline insulation structure according to claim 1, characterized in that: The first thermal insulation pad (21) is connected to the surface of the first arc-shaped connecting plate (2) and the anti-crystallization pipe (1) by abutting, and the second thermal insulation pad (24) is connected to the surface of the anti-crystallization pipe (1) by the second arc-shaped connecting plate (23).

3. The anti-crystallization chemical pipeline insulation structure according to claim 1, characterized in that: The mounting blocks (22) are evenly distributed in four groups on the surface of the first arc-shaped connecting plate (2), and the connecting blocks (25) are evenly distributed in four groups on the surface of the second arc-shaped connecting plate (23). The connecting blocks (25) are connected by abutting the surfaces of the second arc-shaped connecting plate (23) and the mounting blocks (22).

4. The anti-crystallization chemical pipeline insulation structure according to claim 1, characterized in that: The connecting base (26) is connected by surface insertion of the connecting block (25) and the mounting block (22). The limiting buckles (27) are evenly distributed in four groups on the surface of the connecting base (26). The limiting buckles (27) are connected by surface insertion of the connecting base (26) and the mounting block (22).

5. The anti-crystallization chemical pipeline insulation structure according to claim 1, characterized in that: The cleaning mechanism includes a connecting groove (3), which is fixedly connected to the surface of the anti-crystallization pipe (1). An adjustment knob (31) is rotatably connected to the surface of the connecting groove (3). A connecting threaded rod (32) is fixedly connected to the surface of the adjustment knob (31). A connecting shaft (33) is threadedly connected to the surface of the connecting threaded rod (32). A cleaning ring (34) is rotatably connected to the surface of the connecting shaft (33). A limit block (35) is fixedly connected to the surface of the cleaning ring (34). A guide groove (36) is provided inside the anti-crystallization pipe (1).

6. The anti-crystallization chemical pipeline insulation structure according to claim 5, characterized in that: The connecting threaded rod (32) is internally rotated and connected to the connecting groove (3) via the adjusting knob (31), and the connecting shaft (33) is internally movable and connected to the anti-crystallization pipe (1) via the connecting threaded rod (32).

7. The anti-crystallization chemical pipeline insulation structure according to claim 5, characterized in that: The cleaning ring (34) is internally connected to the anti-crystallization pipe (1) via the connecting shaft (33), and the limiting block (35) is externally connected to the cleaning ring (34) via the guide groove (36).

8. The anti-crystallization chemical pipeline insulation structure according to claim 5, characterized in that: The cleaning ring (34) is abutted and connected inside the anti-crystallization pipe (1), and the cleaning ring (34) is rotatably connected to the surface of the guide groove (36) and the connecting shaft (33).