A water pipe anti-freezing device

By using a multi-layer insulation structure and an aluminum foil reflective layer to enhance heat insulation, combined with a heat storage cavity in the middle insulation layer to store heat, the problem of water pipes being prone to freezing and cracking in low-temperature environments has been solved, achieving an effective heat insulation effect.

CN224414715UActive Publication Date: 2026-06-26ANKANG WATER GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANKANG WATER GRP CO LTD
Filing Date
2025-08-08
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing water pipes are prone to freezing and cracking in low-temperature environments, and traditional insulation structures have limited heat loss prevention effects, resulting in unsatisfactory insulation performance.

Method used

The system adopts a multi-layer insulation structure, including an inner insulation layer, a middle insulation layer, and an outer insulation layer. The inner insulation layer makes point contact with the surface of the water pipe and leaves a gap. The middle insulation layer is hollow inside for heat storage. The outer insulation layer is equipped with a locking component. An aluminum foil reflective layer is provided between the inner insulation layers to enhance heat insulation. The middle insulation layer has a heat storage cavity to store heat.

Benefits of technology

It significantly reduces surface temperature loss in water pipes, extends the antifreeze time of water pipes in low-temperature environments, and is suitable for areas with large temperature differences between day and night.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a tap water pipe anti -freezing device belongs to pipeline protection technical field, include: set up on the outer wall of tap water pipe heat preservation subassembly, the heat preservation subassembly includes multilayer heat preservation layer, the innermost layer of multilayer heat preservation layer is with the surface point contact of water pipe, and leaves the gap between both, the middle layer of multilayer heat preservation layer is hollow inside, is used for storing the heat that water pipe passes over, the application through point contact gap and aluminium foil reflection heat insulation and hollow heat storage multidirectional protection to water pipe, can significantly reduce the loss of water pipe surface temperature, the array type heat storage cavity in the middle heat preservation layer can when water pipe in daytime normal operation, the latter water temperature is higher when absorbing and storing the redundant heat, when the ambient temperature reduces at night, the heat storage cavity releases the heat stored and maintains the local temperature of water pipe periphery, thereby effectively prolongs the anti -freezing time of water pipe in low temperature environment, especially applicable to the area of large diurnal temperature range.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline protection technology, specifically a water pipe antifreeze device. Background Technology

[0002] In the cold winter, especially in northern regions, water pipes often freeze and burst due to low temperatures. This not only wastes water resources but also causes considerable inconvenience to residents and can even result in property damage. Currently, the most common method for preventing water pipes from freezing is wrapping them with insulation materials.

[0003] For example, Chinese utility model patent application number 202323141400.8 discloses a water pipe antifreeze protection structure, which insulates the pipe by setting up a double insulation layer. However, due to the nature of the insulation structure, the effect of hindering heat loss from the water pipe is limited, so the insulation effect of the water pipe is not ideal. Summary of the Invention

[0004] To address the problems of existing technologies, this utility model provides a water pipe antifreeze device, comprising: a heat insulation component disposed on the outer wall of the water pipe;

[0005] The insulation component includes multiple insulation layers, with the innermost layer of the multiple insulation layers in point contact with the surface of the water pipe, and a gap between them.

[0006] The middle layer of the multi-layer insulation is hollow and is used to store the heat transferred from the water pipe.

[0007] Furthermore, the multi-layer insulation layer includes: an inner insulation layer, a middle insulation layer, and an outer insulation layer;

[0008] The inner side of the inner insulation layer is in contact with the surface of the water pipe, and there is a gap between them;

[0009] The inner side of the middle insulation layer is in close contact with the outer side of the inner insulation layer, and the middle insulation layer is hollow inside.

[0010] The inner side of the outer insulation layer is in close contact with the outer side of the middle insulation layer, and a locking component is provided on the outer side of the outer insulation layer.

[0011] Furthermore, an aluminum foil reflective layer is provided between the inner insulation layer and the water pipe, and the aluminum foil reflective layer is used to enhance the heat insulation effect on the water pipe.

[0012] Furthermore, the inner surface of the aluminum foil reflective layer that contacts the water pipe is provided with an array of hemispherical protrusions.

[0013] Furthermore, the inner insulation layer is provided with an array of heat storage chambers to store the heat transferred from the inner insulation layer.

[0014] Furthermore, the locking component is a clamp.

[0015] The beneficial effects of this utility model are:

[0016] This application provides multi-directional protection for water pipes through point contact gaps, aluminum foil reflective insulation, and hollow heat storage, which can significantly reduce the loss of surface temperature of water pipes. The array-type heat storage chamber inside the middle insulation layer can absorb and store excess heat when the water temperature is high during normal operation of the water pipe during the day. When the ambient temperature drops at night, the heat storage chamber releases the stored heat to maintain the local temperature around the water pipe, thereby effectively extending the antifreeze time of the water pipe in low-temperature environments, which is especially suitable for areas with large day-night temperature differences. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the antifreeze connection structure provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the aluminum foil insulation layer structure provided by this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the insulation layer provided by this utility model.

[0020] Figure label:

[0021] In the diagram: 1 is a water pipe, 2 is an inner insulation layer, 3 is a middle insulation layer, 4 is an outer insulation layer, 5 is an aluminum foil reflective layer, 6 is a clamp, 7 is a protrusion, and 8 is a heat storage cavity. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-3 This utility model provides a water pipe antifreeze device, including: a water pipe 1, wherein a heat insulation component is provided on the outer wall of the water pipe 1;

[0024] The insulation component includes multiple insulation layers, with the innermost layer of the multiple insulation layers in point contact with the surface of the water pipe 1, and a gap between them.

[0025] The middle layer of the multi-layer insulation layer is hollow and is used to store the heat transferred from the water pipe 1.

[0026] The multi-layer insulation layer includes: an inner insulation layer 2, a middle insulation layer 3, and an outer insulation layer 4;

[0027] The inner surface of the inner insulation layer 2 is fixedly connected to the surface of the water pipe 1, and a gap is left between the two in some areas.

[0028] The inner side of the middle insulation layer 3 is in close contact with and fixedly connected to the outer side of the inner insulation layer 2, and the middle insulation layer 3 is hollow inside;

[0029] The inner side of the outer insulation layer 4 is in close contact with and fixedly connected to the outer side of the middle insulation layer 3. A locking component, which is a clamp 6, is detachably provided on the outer side of the outer insulation layer 4.

[0030] An aluminum foil reflective layer 5 is fixedly installed in the gap area between the inner insulation layer 2 and the water pipe 1. The aluminum foil reflective layer 5 is used to enhance the heat insulation effect on the water pipe 1.

[0031] The inner surface of the aluminum foil reflective layer 5 that contacts the water pipe 1 is fixedly provided with hemispherical protrusions 7 in an array.

[0032] The inner insulation layer 3 is provided with a fixed array of heat storage chambers 8 for storing the heat transferred from the inner insulation layer 2.

[0033] The inner insulation layer uses aerogel felt material (3-5mm thick); the middle insulation layer uses high-density polyethylene (HDPE) hollow board (10-15mm thick), with a honeycomb heat storage cavity (hexagonal cavity, 15mm side length, 1mm cavity wall thickness) formed by injection molding, which can be filled with paraffin wax with a phase change temperature of 0-5℃; the outer insulation layer uses glass fiber reinforced polypropylene (GF-PP) board (5-8mm thick), with axial reinforcing ribs (3mm high, 50mm spacing) on ​​the outside to enhance the compressive strength of the structure, and a butyl rubber bonding layer on the inside to form a flexible connection with the middle insulation layer.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water pipe antifreeze device, characterized in that, include; Insulation components installed on the outer wall of water pipes; The insulation component includes multiple insulation layers, with the innermost layer of the multiple insulation layers in point contact with the surface of the water pipe, and a gap between them. The middle layer of the multi-layer insulation is hollow and is used to store the heat transferred from the water pipe.

2. The water pipe antifreeze device according to claim 1, characterized in that, The multi-layer insulation layer includes: an inner insulation layer, a middle insulation layer, and an outer insulation layer; The inner side of the inner insulation layer is in contact with the surface of the water pipe, and there is a gap between them; The inner side of the middle insulation layer is in close contact with the outer side of the inner insulation layer, and the middle insulation layer is hollow inside. The inner side of the outer insulation layer is in close contact with the outer side of the middle insulation layer, and a locking component is provided on the outer side of the outer insulation layer.

3. The water pipe antifreeze device according to claim 2, characterized in that, An aluminum foil reflective layer is provided between the inner insulation layer and the water pipe, and the aluminum foil reflective layer is used to enhance the heat insulation effect on the water pipe.

4. The water pipe antifreeze device according to claim 3, characterized in that, The inner surface of the aluminum foil reflective layer that contacts the water pipe has an array of hemispherical protrusions.

5. The water pipe antifreeze device according to claim 2, characterized in that, The inner insulation layer has an array of heat storage chambers inside, which are used to store the heat transferred from the inner insulation layer.

6. The water pipe antifreeze device according to claim 2, characterized in that, The locking component is a clamp.