Steel jacket steel thermal insulation pipe with air bag thermal insulation layer
By introducing an alarm system and sealing structure for the airbag insulation layer into the steel-jacketed insulation pipe, the problems of vacuum layer airtightness monitoring and insulation layer loosening are solved, achieving tight connection of the insulation layer and heat reduction, thus improving the insulation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN YIYANG PIPE TECH CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-04-24
AI Technical Summary
In the use of existing steel-jacketed insulated pipes, the airtightness of the vacuum layer is difficult to monitor, which leads to a reduction in insulation quality and the insulation layer is prone to loosening, affecting the insulation effect.
A steel-clad steel insulation pipe with an airbag insulation layer was designed. By setting an alarm and an electromagnetic plate system in the insulation vacuum layer, the airtightness is monitored, and the insulation layer is tightly connected by a sealing plate and a spring structure to reduce heat transfer.
It enables real-time airtightness monitoring of the vacuum layer, timely alarm, and prevention of leakage. The insulation layer is tightly connected, reducing heat loss and improving insulation quality.
Smart Images

Figure CN224162293U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal insulation pipe technology, specifically a steel-clad steel thermal insulation pipe with an airbag insulation layer. Background Technology
[0002] Steel-jacketed insulated steel pipe with an air-filled insulation layer is a highly efficient insulation material widely used in various fields. This type of steel pipe consists of two layers of steel pipes, with a high-temperature heat-resistant insulation material filling the space between them. The outer layer is a steel pipe structure that is tightly bonded to the insulation layer and the working pipe, providing excellent insulation performance and high strength.
[0003] Existing steel-jacketed insulated pipes utilize a vacuum layer to reduce heat transfer and achieve insulation. However, this makes it impossible for personnel to monitor the vacuum layer, preventing leakage of the inner wall's vacuum tightness and thus reducing insulation quality. Furthermore, the multiple insulation layers installed on the outer wall of the inner pipe during use can result in loose installation between the layers, leading to deformation of the insulation layers over time. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a steel-clad steel insulation pipe with an airbag insulation layer, which has the advantages of enabling airtightness monitoring through the vacuum insulation layer and ensuring tight installation between insulation layers, thus solving the problems mentioned in the background technology.
[0005] This utility model provides the following technical solution: a steel-clad steel insulation pipe with an airbag insulation layer, comprising an inner tube body, an insulation vacuum layer fixedly installed on the outer wall of the inner tube body, a cylinder fixedly installed on the top of the insulation vacuum layer, an alarm fixedly connected to the top of the cylinder, a round rod fixedly installed at the bottom of the alarm, a second diaphragm fixedly installed at the bottom of the round rod, a first diaphragm fixedly connected to the inner wall of the cylinder, an electromagnetic plate fixedly installed on the top of the first diaphragm, an inner insulation layer fixedly installed on the outer wall of the insulation vacuum layer, a heat-resistant layer fixedly connected to the outer wall of the inner insulation layer, a sealing plate installed on the outer wall of the heat-resistant layer, a short rod fixedly connected to the outer wall of the sealing plate, a spring installed on the outer wall of the short rod, and an outer tube body fixedly installed at one end of the spring.
[0006] As a preferred technical solution of this utility model: the inner wall of the outer tube is provided with a circular groove, and the outer wall of the circular groove is slidably connected to the outer wall of the short rod.
[0007] As a preferred technical solution of this utility model: the alarm and the electromagnetic plate are electrically connected, and the electromagnetic plate is located at the top center of the first diaphragm.
[0008] As a preferred technical solution of this utility model: the first tympanic membrane is elastic, and the arc surface of the second tympanic membrane is also fixedly equipped with an electromagnetic plate, and the electromagnetic plate on the outer wall of the first tympanic membrane corresponds to the electromagnetic plate on the arc surface of the second tympanic membrane.
[0009] As a preferred technical solution of this utility model: the number of sealing plates is several, and the several sealing plates are distributed around the outer wall of the heat-resistant layer.
[0010] As a preferred technical solution of this utility model: the number of the short rods and springs is several, and the several short rods and springs are evenly distributed on the outer wall of the sealing plate.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This steel-jacketed insulated pipe with an airbag insulation layer insulates the outer wall of the inner pipe through the insulation vacuum layer. The vacuum inside the insulation vacuum layer reduces heat transfer. When the airtightness of the inner wall is monitored during long-term use of the insulation vacuum layer, the gas entering the inner wall of the insulation vacuum layer pushes the first diaphragm. The first diaphragm drives the electromagnetic plates to generate an electrical signal between them. The equipment can issue a timely warning and the alarm will sound. This allows personnel to promptly inspect the insulation vacuum layer and the inner pipe to confirm the pipe's sealing condition, thus improving the insulation performance of the device.
[0013] 2. This steel-jacketed insulated pipe with an air-filled insulation layer forms a sliding connection between the outer wall of the circular groove and the outer wall of the short rod. The sealing plate adheres to the outer wall of the heat-resistant layer, allowing the short rod to push the sealing plate through the spring force, thus ensuring a tight fit between the heat-resistant layer and the inner insulation layer. This prevents loosening during the insulation process. Several sealing plates press against each other, effectively reducing heat transfer between the heat-resistant layer and the external environment, while the inner insulation layer effectively hinders heat transfer, reducing heat loss during transport and improving the pipe's insulation quality. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the sealing plate structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the spring structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the cylindrical structure of this utility model;
[0018] Figure 5This is a schematic diagram of the second tympanic membrane structure of this utility model.
[0019] In the diagram: 1. Inner tube; 2. Sealing plate; 3. Heat-resistant layer; 4. Inner insulation layer; 5. Alarm; 6. Cylinder; 7. Outer tube; 8. Short rod; 9. Spring; 10. Insulation vacuum layer; 11. First diaphragm; 12. Electromagnetic plate; 13. Second diaphragm; 14. Round rod; 15. Round groove. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1 - Figure 5 A steel-clad steel insulation pipe with an airbag insulation layer includes an inner tube body 1. An insulation vacuum layer 10 is fixedly installed on the outer wall of the inner tube body 1. A cylinder 6 is fixedly installed on the top of the insulation vacuum layer 10. An alarm 5 is fixedly connected to the top of the cylinder 6. A round rod 14 is fixedly installed at the bottom of the alarm 5. A second diaphragm 13 is fixedly installed at the bottom of the round rod 14. A first diaphragm 11 is fixedly connected to the inner wall of the cylinder 6. An electromagnetic plate 12 is fixedly installed on the top of the first diaphragm 11. An inner insulation layer 4 is fixedly installed on the outer wall of the insulation vacuum layer 10. A heat-resistant layer 3 is fixedly connected to the outer wall of the inner insulation layer 4. A sealing plate 2 is installed on the outer wall of the heat-resistant layer 3. A short rod 8 is fixedly connected to the outer wall of the sealing plate 2. A spring 9 is installed on the outer wall of the short rod 8. An outer tube body 7 is fixedly installed at one end of the spring 9.
[0022] In the above structure, by installing the outer tube 7, the inner wall structure is protected, thus avoiding the impact of external factors on the insulation of the pipe.
[0023] In a preferred embodiment, the inner wall of the outer tube 7 is provided with a circular groove 15, and the outer wall of the circular groove 15 is slidably connected to the outer wall of the short rod 8.
[0024] In the above structure, the outer wall of the circular groove 15 and the outer wall of the short rod 8 form a sliding connection. The sealing plate 2 is attached to the outer wall of the heat-resistant layer 3, so that the short rod 8 pushes the sealing plate 2 by the elastic force of the spring 9, thereby making the heat-resistant layer 3 and the inner insulation layer 4 tightly installed, and avoiding the heat-resistant layer 3 and the inner insulation layer 4 from becoming loose during the heat preservation process.
[0025] In a preferred embodiment, the alarm 5 is electrically connected to the electromagnetic plate 12, which is located at the top center of the first diaphragm 11.
[0026] In the above structure, the outer wall of the inner tube 1 is insulated by the heat insulation vacuum layer 10, which reduces heat transfer by creating a vacuum on the inner wall of the heat insulation vacuum layer 10. When the airtightness of the inner wall of the heat insulation vacuum layer 10 is monitored for a long time, gas enters the inner wall of the heat insulation vacuum layer 10. The gas pushes the first diaphragm 11, which drives the electromagnetic plate 12 to generate an electrical signal between the two electromagnetic plates. The equipment can give a timely warning, and the alarm 5 will sound an alarm. This allows personnel to promptly inspect the heat insulation vacuum layer 10 and the inner tube 1 to confirm the sealing condition of the pipeline, thus improving the heat insulation performance of the device.
[0027] In a preferred embodiment: the first tympanic membrane 11 is elastic, and the arc surface of the second tympanic membrane 13 is also fixedly fitted with an electromagnetic plate 12, and the electromagnetic plate 12 on the outer wall of the first tympanic membrane 11 corresponds to the position of the electromagnetic plate 12 on the arc surface of the second tympanic membrane 13.
[0028] In the above structure, the first diaphragm 11 is elastic, so that when the heat insulation vacuum layer 10 and the outer wall of the inner tube 1 are damaged, gas enters the inner wall of the heat insulation vacuum layer 10, pushes the first diaphragm 11, and drives the electromagnetic plate 12 to move and stick to the electromagnetic plate 12 on the outer wall of the second diaphragm 13 to generate an electrical signal.
[0029] In a preferred embodiment, there are several sealing plates 2, and these sealing plates 2 are distributed around the outer wall of the heat-resistant layer 3.
[0030] In the above structure, several sealing plates 2 are distributed around the outer wall of the heat-resistant layer 3. The sealing plates 2 press against the heat-resistant layer 3 and the inner insulation layer 4, so that the heat-resistant layer 3 can effectively reduce the heat transfer between the medium in the pipeline and the external environment, and the inner insulation layer 4 can effectively hinder the heat transfer, reduce the heat loss of the medium during transportation, and improve the insulation quality of the pipeline.
[0031] In a preferred embodiment, there are several short rods 8 and springs 9, and these short rods 8 and springs 9 are evenly distributed on the outer wall of the sealing plate 2.
[0032] In the above structure, several short rods 8 and springs 9 are evenly distributed on the outer wall of the sealing plate 2. The sealing plate 2 seals and locks in the temperature of the inner wall of the outer tube 7, so that the sealing plate 2 avoids heat loss.
[0033] Working Principle: A sliding connection is formed between the outer wall of the circular groove 15 and the outer wall of the short rod 8. The sealing plate 2 adheres to the outer wall of the heat-resistant layer 3, allowing the short rod 8 to push the sealing plate 2 through the elastic force of the spring 9. This ensures a tight fit between the heat-resistant layer 3 and the inner insulation layer 4, preventing loosening during the insulation process. Several sealing plates 2 press against the heat-resistant layer 3 and the inner insulation layer 4, effectively reducing heat transfer between the heat-resistant layer 3 and the external environment. The inner insulation layer 4 effectively hinders heat transfer, reducing heat loss during transport and improving pipeline insulation quality. Several short rods 8 and springs 9 are evenly distributed on the outer wall of the sealing plate 2, sealing and locking in the temperature of the inner wall of the outer pipe 7, preventing heat loss from the inner pipe 1. This achieves true insulation. The vacuum layer 10 insulates the outer wall of the inner tube 1, reducing heat transfer by creating a vacuum on the inner wall of the vacuum layer 10. When the airtightness of the inner wall of the vacuum layer 10 is monitored over a long period of time, gas enters the inner wall of the vacuum layer 10 and pushes the first diaphragm 11. The first diaphragm 11 drives the electromagnetic plate 12 to generate an electrical signal between them. The device can issue an early warning in time, and the alarm 5 will sound an alarm. This allows personnel to promptly inspect the vacuum layer 10 and the inner tube 1 to confirm the sealing condition of the pipeline, thus improving the insulation performance of the device. Because the first diaphragm 11 is elastic, when the outer wall of the vacuum layer 10 and the inner tube 1 is damaged, gas enters the inner wall of the vacuum layer 10 and pushes the first diaphragm 11 to move the electromagnetic plate 12, causing it to move and come into contact with the electromagnetic plate 12 on the outer wall of the second diaphragm 13, generating an electrical signal.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A steel-clad steel insulation pipe with an air-filled insulation layer, comprising an inner pipe body (1), characterized in that: A heat-insulating vacuum layer (10) is fixedly installed on the outer wall of the inner tube (1). A cylinder (6) is fixedly installed on the top of the heat-insulating vacuum layer (10). An alarm (5) is fixedly connected to the top of the cylinder (6). A round rod (14) is fixedly installed at the bottom of the alarm (5). A second diaphragm (13) is fixedly installed at the bottom of the round rod (14). A first diaphragm (11) is fixedly connected to the inner wall of the cylinder (6). An electromagnetic plate (12) is fixedly installed on the top of the first diaphragm (11). An inner heat-insulating layer (4) is fixedly installed on the outer wall of the heat-insulating vacuum layer (10). A heat-resistant layer (3) is fixedly connected to the outer wall of the inner heat-insulating layer (4). A sealing plate (2) is installed on the outer wall of the heat-resistant layer (3). A short rod (8) is fixedly connected to the outer wall of the sealing plate (2). A spring (9) is installed on the outer wall of the short rod (8). An outer tube (7) is fixedly installed at one end of the spring (9).
2. The steel-clad steel insulation pipe with an air-bag insulation layer according to claim 1, characterized in that: The inner wall of the outer tube (7) is provided with a circular groove (15), and the outer wall of the circular groove (15) is slidably connected to the outer wall of the short rod (8).
3. A steel-clad steel insulation pipe with an air-bag insulation layer according to claim 2, characterized in that: The alarm (5) is electrically connected to the electromagnetic plate (12), which is located at the top center of the first diaphragm (11).
4. A steel-clad steel insulation pipe with an air-filled insulation layer according to claim 1, characterized in that: The first tympanic membrane (11) is elastic, and the arc surface of the second tympanic membrane (13) is also fixedly fitted with an electromagnetic plate (12). The electromagnetic plate (12) on the outer wall of the first tympanic membrane (11) corresponds to the electromagnetic plate (12) on the arc surface of the second tympanic membrane (13).
5. A steel-clad steel insulation pipe with an air-filled insulation layer according to claim 4, characterized in that: The number of sealing plates (2) is several, and several sealing plates (2) are distributed around the outer wall of the heat-resistant layer (3).
6. A steel-clad steel insulation pipe with an air-filled insulation layer according to claim 1, characterized in that: The number of the short rods (8) and springs (9) is several, and the short rods (8) and springs (9) are evenly distributed on the outer wall of the sealing plate (2).