Anti-frost heaving heat preservation protective sleeve structure for water delivery pipeline in high altitude area
By installing a protective sleeve structure on the water pipeline, with an internal pressure-resistant pipe and reinforcing ring, along with insulation material and a sensing ring, the problem of rupture caused by frost heave in water pipelines in high-altitude areas is solved, achieving frost heave resistance and insulation effects, and providing a real-time early warning mechanism.
Patent Information
- Application Number
- CN202520580257.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-31
AI Technical Summary
In high-altitude areas, water pipes may rupture due to the expansion of water volume caused by freezing at low temperatures, increasing the pressure on the inner walls and affecting their use.
It adopts a protective sleeve structure, with internal pressure-resistant pipes and reinforcing rings, and is equipped with insulating rock wool pipes and sensing rings. It is equipped with pressure sensors and alarms for real-time monitoring and alarm.
It effectively prevents pipe freezing expansion, improves compressive strength, reduces the impact of temperature, and provides timely warnings to prevent rupture.
Smart Images

Figure CN223840002U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water pipeline technology, and in particular to a frost-resistant insulation and protective sleeve structure for water pipelines in high-altitude areas. Background Technology
[0002] Water pipelines are tubular facilities used to transport water, playing an important role in water resource allocation, urban water supply, and agricultural irrigation. Water pipelines are usually characterized by good sealing, which can effectively prevent water leakage, reduce water waste and impact on the surrounding environment. In urban water supply systems, water pipelines transport water from water sources to various water plants for treatment, and then distribute the treated water to thousands of households and various enterprises and institutions in the city.
[0003] In existing technologies, during the use of water pipelines in high-altitude areas, the generally low temperatures, especially in winter, cause the water inside the pipelines to freeze easily. When water freezes into ice, its volume increases, increasing the pressure on the inner wall of the pipeline and potentially leading to rupture, thus affecting subsequent use. This invention proposes a frost-resistant insulation and protective sleeve structure for water pipelines in high-altitude areas. Utility Model Content
[0004] The purpose of this invention is to solve the problem that in the use of water pipelines in high-altitude areas, the water inside the pipelines is prone to freezing due to the generally low temperature in high-altitude areas, especially in winter. When the water freezes into ice, its volume increases, which increases the pressure on the inner wall of the water pipeline, leading to rupture and affecting subsequent use. Therefore, this invention proposes a frost-resistant insulation and protective sleeve structure for water pipelines in high-altitude areas.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A frost-resistant and heat-insulating protective sleeve structure for water pipelines in high-altitude areas includes a protective sleeve, an inner pressure-resistant pipe, and multiple reinforcing rings fixedly fitted on the wall of the pressure-resistant pipe. Reinforcing connecting rods are simultaneously passed through the interior of the multiple reinforcing rings. Insulating rock wool pipes are filled in the gap between the protective sleeve and the multiple reinforcing rings. Mounting rings are fixedly connected to the walls of both ends of the protective sleeve, and multiple mounting bolts are threaded around the interior of the mounting rings.
[0007] Preferably, a sealing gasket is fixedly connected to the inner wall of the mounting ring, and the side wall of the sealing gasket is set as an arc surface.
[0008] Preferably, a plurality of sensing rings are fitted on the wall of the protective sleeve, and a connecting ring is fixedly connected to the side wall of each of the plurality of sensing rings. A connecting bolt is threadedly connected to the connection between the connecting ring and the protective sleeve.
[0009] Preferably, the inner wall of the sensing ring has an annular cavity, and the inner wall of the annular cavity is provided with an elastic annular water bag.
[0010] Preferably, the sensing ring is equipped with a controller inside, a pressure sensor is provided on the inner wall of the sensing ring located in the annular cavity, and an alarm is fixedly connected to the side wall of the sensing ring. The pressure sensor and the alarm are electrically connected to the controller respectively.
[0011] Preferably, the outer surface of the elastic annular water bag is set as an arc surface and aligned with the pressure sensor.
[0012] Compared with the prior art, this utility model provides a frost-resistant insulation and protective sleeve structure for water pipelines in high-altitude areas, which has the following beneficial effects:
[0013] 1. The frost-resistant insulation protective sleeve structure for water pipelines in high-altitude areas can be installed on the pipe wall using mounting rings and bolts. The pressure-resistant pipe can improve the stability and protection of the water pipeline, preventing the water inside from freezing and expanding, which could cause the water pipeline to crack. Multiple reinforcing connecting rods and multiple reinforcing rings are fixedly connected to the pipe wall of the pressure-resistant pipe, which can improve the compressive strength of the pressure-resistant pipe. Meanwhile, the insulating rock wool pipe has good thermal insulation effect, which can improve the insulation effect of the water pipeline and reduce its impact from the temperature in high-altitude areas.
[0014] 2. The anti-freezing and heat-insulating protective sleeve structure of the water pipeline in high-altitude areas utilizes the principle that when water condenses and expands inside the elastic annular water bag, it presses against the inner wall of the annular cavity of the sensing ring, compressing the surface of the pressure sensor. The pressure sensor transmits data to the controller based on the pressure change. The controller senses the change in electronic signal and activates the alarm, enabling timely alarm activation. This allows staff to promptly detect and repair low temperatures on the outside of the water pipeline, preventing pipe bursts that could affect its operation. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural view of a frost-resistant and heat-insulating protective sleeve structure for water pipelines in high-altitude areas proposed in this utility model.
[0016] Figure 2 This is a structural cross-sectional view of a frost-resistant and heat-insulating protective sleeve structure for water pipelines in high-altitude areas proposed in this utility model.
[0017] Figure 3 for Figure 2 A magnified schematic diagram of part A in the middle section.
[0018] In the diagram: 1. Protective sleeve, 2. Insulating rock wool pipe, 3. Reinforcing connecting rod, 4. Reinforcing ring, 5. Pressure-resistant pipe, 6. Mounting ring, 7. Mounting bolt, 8. Sealing gasket, 9. Sensing ring, 10. Connecting ring, 11. Connecting bolt, 12. Elastic ring water bag, 13. Controller, 14. Pressure sensor, 15. Alarm. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Reference Figure 1-3 A frost-resistant and heat-insulating protective sleeve structure for water pipelines in high-altitude areas includes a protective sleeve 1, a pressure-resistant pipe 5 on the inner side of the protective sleeve 1, multiple reinforcing rings 4 fixedly fitted on the pipe wall of the pressure-resistant pipe 5, and reinforcing connecting rods 3 passing through the interior of the multiple reinforcing rings 4. The gap between the protective sleeve 1 and the multiple reinforcing rings 4 is filled with insulating rock wool pipes 2. The pipe walls at both ends of the protective sleeve 1 are respectively fixedly connected with mounting rings 6. Multiple mounting bolts 7 are threaded around the interior of the mounting rings 6. A sealing gasket 8 is fixedly connected to the inner wall of the mounting ring 6, and the side wall of the sealing gasket 8 is set as an arc surface.
[0021] Multiple sensing rings 9 are fitted on the wall of the protective sleeve 1. Connecting rings 10 are fixedly connected to the side walls of the multiple sensing rings 9 respectively. Connecting bolts 11 are threadedly connected to the connection between the connecting rings 10 and the protective sleeve 1. An annular cavity is opened in the inner wall of the sensing ring 9. An elastic annular water bag 12 is provided in the inner wall of the annular cavity.
[0022] In use, the protective sleeve 1 can be installed on the wall of the water supply pipe using the mounting ring 6 and mounting bolt 7. The pressure-resistant pipe 5 can improve the stability protection of the water supply pipe and prevent the water inside the water supply pipe from freezing and expanding, which would squeeze and rupture the water supply pipe. Multiple reinforcing connecting rods 3 and multiple reinforcing rings 4 are fixedly connected and sleeved on the wall of the pressure-resistant pipe 5, which can improve the compressive strength of the pressure-resistant pipe 5. The insulating rock wool pipe 2 has a good thermal insulation effect, which can improve the insulation effect of the water supply pipe 2 and reduce its impact from the temperature of high-altitude areas.
[0023] The sealing gasket 8 can improve the tightness of the installation ring 6 and the water pipe. When the temperature is low, the water inside the elastic annular water bag 12 will condense and expand, squeezing the inner wall of the sensing ring 9 located in the annular cavity, which can facilitate subsequent detection and handling.
[0024] To facilitate timely detection and early warning by staff when the temperature on the outside of the water pipe is too low, such as Figure 1-3 As shown, the sensor ring 9 is equipped with a controller 13 inside, and a pressure sensor 14 is provided on the inner wall of the annular cavity of the sensor ring 9. An alarm 15 is fixedly connected to the side wall of the sensor ring 9. The pressure sensor 14 and the alarm 15 are electrically connected to the controller 13 respectively. The outer surface of the elastic annular water bag 12 is set as an arc surface and is aligned with the pressure sensor 14.
[0025] When the water inside the elastic annular water bag 12 condenses and expands, it will squeeze the inner wall of the annular cavity of the sensing ring 9, thereby pressing it tightly against the surface of the pressure sensor 14. The pressure sensor 14 transmits data to the inside of the controller 13 when it receives pressure changes. The controller 13 can drive the alarm 15 to alarm when it senses the change in electronic signal, so that the alarm 15 can sound an alarm in time. This makes it convenient for staff to promptly detect when the temperature on the outside of the water pipe is too low, and to carry out maintenance and repair of the water pipe to prevent the water pipe from bursting and affecting its use.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A frost-resistant and heat-insulating protective sleeve structure for water pipelines in high-altitude areas, comprising a protective sleeve (1), characterized in that: The inner side of the protective sleeve (1) is provided with a pressure-resistant pipe (5). Multiple reinforcing rings (4) are fixedly sleeved on the wall of the pressure-resistant pipe (5). Reinforcing connecting rods (3) pass through the interior of the multiple reinforcing rings (4). The gap between the protective sleeve (1) and the multiple reinforcing rings (4) is filled with insulating rock wool pipes (2). The two ends of the protective sleeve (1) are respectively fixedly connected with mounting rings (6). Multiple mounting bolts (7) are threaded around the interior of the mounting rings (6).
2. The anti-freezing and heat-insulating protective sleeve structure for water transmission pipelines in high-altitude areas according to claim 1, characterized in that: The inner wall of the mounting ring (6) is fixedly connected to a sealing gasket (8), and the side wall of the sealing gasket (8) is set as an arc surface.
3. The anti-freezing and heat-insulating protective sleeve structure for water pipelines in high-altitude areas according to claim 1, characterized in that: Multiple sensing rings (9) are fitted on the wall of the protective sleeve (1), and connecting rings (10) are fixedly connected to the side walls of the multiple sensing rings (9). Connecting bolts (11) are threadedly connected to the connection between the connecting rings (10) and the protective sleeve (1).
4. The anti-freezing and heat-insulating protective sleeve structure for water transmission pipelines in high-altitude areas according to claim 3, characterized in that: The inner wall of the sensing ring (9) is provided with an annular cavity, and the inner wall of the annular cavity is provided with an elastic annular water bag (12).
5. The anti-freezing and heat-insulating protective sleeve structure for water transmission pipelines in high-altitude areas according to claim 3, characterized in that: The sensor ring (9) is equipped with a controller (13) inside. The sensor ring (9) is equipped with a pressure sensor (14) on the inner wall of the annular cavity. An alarm (15) is fixedly connected to the side wall of the sensor ring (9). The pressure sensor (14) and the alarm (15) are electrically connected to the controller (13) respectively.
6. The anti-freezing and heat-insulating protective sleeve structure for water pipelines in high-altitude areas according to claim 4, characterized in that: The outer surface of the elastic annular water bag (12) is set as an arc surface and aligned with the pressure sensor (14).