Heat preservation shell for pipeline elbow

By introducing a malleable protective cover and connection design into the insulation shell of the pipe elbow, the problem of traditional insulation shells being unable to adapt to different shapes and sizes is solved, achieving uniformity and sealing of insulation effect, and simplifying the installation and maintenance process.

CN224229562UActive Publication Date: 2026-05-12SHANDONG SHENGYUE PETROCHEMICAL ENG CONSTR CO
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG SHENGYUE PETROCHEMICAL ENG CONSTR CO
Filing Date
2025-06-30
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional insulation shells are difficult to fit completely against the surface of pipe elbows, resulting in uneven insulation performance, cumbersome operation, and difficulty in adapting to pipe elbows of different shapes and sizes.

Method used

The internal support structure uses a malleable protective cover, combined with connecting columns, one-way injection valves, protrusions and grooves to enhance the rigidity and stability of the shell. Its malleability also allows it to adapt to pipe bends of different shapes and sizes, simplifying the installation and maintenance process.

Benefits of technology

It improves insulation performance and service life, reduces maintenance costs, enhances the versatility and applicability of the outer shell, and ensures uniform distribution and sealing of insulation materials.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224229562U_ABST
    Figure CN224229562U_ABST
Patent Text Reader

Abstract

The utility model discloses a pipeline elbow heat preservation shell which comprises a flexible shell body, four connecting columns are fixedly connected to the interior of the flexible shell body, a plurality of one-way injection valves are arranged among the four connecting columns, and the ends, away from the flexible shell body, of the four connecting columns are fixedly connected with a plastic protection cover. A protruding block is fixedly connected to one end of the plastic protection cover, a groove is formed in the plastic protection cover, and a plurality of matching plates are fixedly connected to the outer surface of the plastic protection cover. The plastic protective cover serves as an internal supporting structure, the overall rigidity and stability of the flexible shell can be effectively enhanced, the shell is prevented from deforming under external pressure or vibration, the shell is more convenient to assemble due to the internal design of the plastic protective cover, meanwhile, follow-up inspection, supplement or replacement of heat preservation materials are facilitated, the maintenance cost is reduced, and the service life of the shell is prolonged. The plasticity of the plastic protective cover enables the plastic protective cover to adapt to pipeline elbows of different shapes and sizes, and the universality and applicability of the shell are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation shell technology, specifically a thermal insulation shell for a pipe elbow. Background Technology

[0002] In industries such as petroleum, chemical, power, and heating, pipeline systems are typically used to transport high-temperature or low-temperature media (such as steam, hot water, and refrigerant). As a key component in the pipeline system, elbows are prone to heat loss or external heat intrusion due to their special geometry. Therefore, effective insulation of elbows is an important means to reduce energy loss and improve system efficiency.

[0003] Traditional insulation shells usually need to be customized according to the specific size and shape of the elbow. The installation process involves multiple steps (such as cutting, splicing, fixing, etc.), which is cumbersome and time-consuming. Since the size, angle and curvature of pipe elbows are different, traditional insulation shells often cannot completely fit the elbow surface, resulting in uneven insulation layer or gaps, which affects the insulation effect. Utility Model Content

[0004] The purpose of this utility model is to provide a pipe elbow insulation shell. By using a plastic protective cover as an internal support structure, the overall rigidity and stability of the flexible shell can be effectively enhanced, preventing the shell from deforming under external pressure or vibration. The internal design of the plastic protective cover makes the shell assembly more convenient, and facilitates the subsequent inspection, replenishment or replacement of insulation materials, reducing maintenance costs. The plasticity of the plastic protective cover allows it to adapt to pipe elbows of different shapes and sizes, improving the versatility and applicability of the shell.

[0005] To achieve the above objectives, a pipe elbow insulation shell is provided, comprising: a flexible shell, four connecting posts fixedly connected inside the flexible shell, a plurality of one-way injection valves disposed between the four connecting posts, a plastic protective cover fixedly connected to the end of the four connecting posts away from the flexible shell, a protrusion fixedly connected to one end of the plastic protective cover, a groove formed inside the plastic protective cover, and a plurality of mating plates fixedly connected to the outer surface of the plastic protective cover. This design enhances the structural stability of the shell, facilitates installation and maintenance, and improves the insulation effect and service life.

[0006] According to the aforementioned pipe elbow insulation shell, the one-way injection valve is located above the mating plate, and the number of one-way injection valves corresponds to the number of mating plates. This layout ensures coordinated operation between the injection valves and the mating plates, improves the uniform distribution of insulation material, and enhances the insulation effect.

[0007] According to the aforementioned pipe elbow insulation shell, the one-way injection valve and connecting columns are staggered, with the connecting columns arranged in an array on the outer surface of the plastic protective cover. This staggered arrangement optimizes space utilization, improves the compactness and stability of the structure, and facilitates installation and disassembly.

[0008] According to the aforementioned pipe elbow insulation shell, the protrusion and groove are positioned to match, with the protrusion located above the groove. This design ensures a tight connection of the shell, prevents leakage of insulation material, and improves overall sealing and insulation performance.

[0009] According to the aforementioned pipe elbow insulation shell, the malleable protective cover is located inside the flexible shell. This internal protective cover design enhances the durability and impact resistance of the shell, while improving insulation performance and extending service life.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model is equipped with a connecting column, a one-way injection valve, a plastic protective cover, a protrusion, a groove, and a mating plate. The plastic protective cover serves as an internal support structure, which can effectively enhance the overall rigidity and stability of the flexible shell and prevent the shell from deforming under external pressure or vibration. The internal design of the plastic protective cover makes the shell assembly more convenient and facilitates the subsequent inspection, replenishment, or replacement of the insulation material, reducing maintenance costs. The plasticity of the plastic protective cover allows it to adapt to pipe bends of different shapes and sizes, improving the versatility and applicability of the shell.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a perspective view of a pipe elbow insulation shell according to the present invention;

[0015] Figure 2 This is a top view of the insulation shell for a pipe elbow according to the present invention;

[0016] Figure 3 This is a cross-sectional perspective view of the insulation shell for a pipe elbow according to the present invention;

[0017] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0018] In the diagram: 1. Flexible outer shell; 2. One-way injection valve; 3. Connecting column; 4. Moldable protective cover; 5. Protrusion; 6. Groove; 7. Mating plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a pipe elbow insulation shell, comprising: a flexible shell 1, four connecting columns 3 fixedly connected inside the flexible shell 1 for providing structural support and fixed connection, a plurality of one-way injection valves 2 arranged between the four connecting columns 3 for controlling the injection of insulation material and preventing backflow, a plastic protective cover 4 fixedly connected to the end of the four connecting columns 3 away from the flexible shell 1 for protecting the internal structure and enhancing overall stability, a protrusion 5 fixedly connected to one end of the plastic protective cover 4 for positioning and cooperation with other components, and a groove 6 opened inside the plastic protective cover 4 for cooperating with the protrusion 5 to achieve precise docking.

[0021] Several mating plates 7 are fixedly connected to the outer surface of the malleable protective cover 4 to enhance the strength of the outer shell and connect other components. One-way injection valves 2 are located above the mating plates 7 to ensure that the functional areas of the injection valves and mating plates 7 are separated. The number of one-way injection valves 2 and the number of mating plates 7 are set in a corresponding manner to achieve a balanced design of function and structure. The one-way injection valves 2 and connecting columns 3 are staggered to optimize space utilization and improve structural stability. The connecting columns 3 are distributed in an array on the outer surface of the malleable protective cover 4 to ensure uniform force and structural symmetry. The positions of the protrusions 5 and the grooves 6 are matched to achieve precise docking and prevent misalignment. The protrusions 5 are located above the grooves 6 to ensure smoothness and stability during docking. The malleable protective cover 4 is located inside the flexible outer shell 1 to provide internal protection and enhance the integrity of the overall structure.

[0022] Working Principle: Ensure that the flexible shell 1, connecting column 3, malleable protective cover 4, one-way injection valve 2, and other components are intact and undamaged. Check the compatibility of the protrusion 5 and groove 6. Fix the malleable protective cover 4 to the flexible shell 1 through the connecting column 3, ensuring that the protrusion 5 and groove 6 are precisely aligned to achieve stable installation of the malleable protective cover 4. Install the mating plate 7 on the outer surface of the malleable protective cover 4, ensuring that its position corresponds with the connecting column 3 and the one-way injection valve 2 to enhance the overall strength of the shell. Install the one-way injection valve 2 between the connecting columns 3, ensuring that it is staggered with the mating plate 7 to avoid functional area conflicts. Insulation material is injected into the flexible shell 1 through the one-way injection valve 2, using the characteristics of the one-way valve to prevent material backflow and ensure uniform filling. Confirm that all connection parts are well sealed to prevent insulation material leakage. Slide the assembled insulation shell onto the pipe elbow, ensuring that the malleable protective cover 4 and the flexible shell 1 completely cover the elbow to provide comprehensive insulation protection. Adjust the position of the shell as needed to ensure that the mating plate 7 is firmly connected to other external structures, further reinforcing the overall structure.

[0023] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pipe elbow insulation shell, comprising: A flexible shell (1) is characterized in that: four connecting posts (3) are fixedly connected inside the flexible shell (1), a plurality of one-way injection valves (2) are arranged between the four connecting posts (3), a plastic protective cover (4) is fixedly connected to one end of the four connecting posts (3) away from the flexible shell (1), a protrusion (5) is fixedly connected to one end of the plastic protective cover (4), a groove (6) is opened inside the plastic protective cover (4), and a plurality of mating plates (7) are fixedly connected to the outer surface of the plastic protective cover (4).

2. The pipe elbow insulation shell as described in claim 1, characterized in that: The one-way injection valve (2) is located above the mating plate (7), and the number of the one-way injection valves (2) is set in correspondence with the number of mating plates (7).

3. The pipe elbow insulation shell as described in claim 1, characterized in that: The one-way injection valve (2) and the connecting column (3) are staggered and the connecting column (3) is arranged in an array on the outer surface of the plastic protective cover (4).

4. The pipe elbow insulation shell as described in claim 1, characterized in that: The protrusion (5) and the groove (6) are positioned to match each other, with the protrusion (5) located above the groove (6).

5. The pipe elbow insulation shell as described in claim 1, characterized in that: The malleable protective cover (4) is located inside the flexible outer shell (1).