Thermal insulation pipe with waterproof function

Abstract

The utility model discloses a heat preservation pipe with waterproof function, including work steel pipe, heat preservation layer, protective layer, waterproof layer, heat preservation layer sets up outside work steel pipe, heat preservation layer is connected fixedly with work steel pipe, waterproof layer sets up in the both sides of work steel pipe and is close to work steel pipe port position, the protective layer sets up in the outside of heat preservation layer and waterproof layer, through setting up waterproof layer, and selecting ball silicon to set up in the vicinity of pipeline connection port, after the leakage of pipeline connection port, the polyurethane that contacts water loses the heat preservation function, and ball silicon can control the range of polyurethane affected by leakage in the vicinity of pipeline connection port, will not cause the excessive influence, and the maintenance and replacement of polyurethane of the leakage place in the later period are convenient.

Description

Technical Field

[0001] This utility model relates to a thermal insulation pipe, specifically a thermal insulation pipe with waterproof function. Background Technology

[0002] Thermal insulation pipe, also known as insulated pipeline, is a heat-insulated pipeline used for transporting liquids, gases, and other media. It is mainly divided into two types: steel-jacketed steel composite type and polyurethane type. North China is the main production area. Its applicable temperature range is -50℃ to 150℃, and it is widely used in pipeline insulation projects in industries such as petroleum, chemical, and district heating.

[0003] When existing insulation pipes are used for a long time, water leakage is prone to occur at the connection ends of adjacent insulation pipes. When water comes into contact with polyurethane, the polyurethane will lose its insulation effect, and a single leak will render a large area of ​​polyurethane ineffective, causing inconvenience for repairs. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof heat-insulating pipe to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A waterproof insulated pipe, with a working steel pipe; The insulation layer is installed on the outside of the working steel pipe and is fixedly connected to the working steel pipe. A waterproof layer is installed on both sides of the working steel pipe near the end of the working steel pipe; The protective layer is placed on the outside of the insulation layer and the waterproof layer.

[0006] As a further embodiment of this invention: the waterproof layer is made of spherical silicone.

[0007] As a further embodiment of this utility model: a marking strip is set on the outside of the protective layer at the corresponding position of the waterproof layer.

[0008] As a further embodiment of this invention, the insulation layer is made of polyurethane.

[0009] As a further embodiment of this invention, the protective layer is made of polyethylene and is wrapped around the outside of the insulation layer.

[0010] Compared with the prior art, the beneficial effects of this utility model are: By setting up a waterproof layer and using spherical silicone near the pipe connection port, the polyurethane that comes into contact with water loses its insulation function when a leak occurs at the pipe connection port. The spherical silicone will control the extent of the water leakage affecting the polyurethane near the pipe connection port, preventing it from causing too much impact and facilitating the later inspection and replacement of the polyurethane at the leak point. Attached Figure Description

[0011] Figure 1 This is a structural diagram of a waterproof thermal insulation pipe.

[0012] Figure 2 This is a side view of the structure of a waterproof insulated pipe.

[0013] Figure 3 This is a cross-sectional structural diagram of a waterproof insulated pipe. Detailed Implementation

[0014] 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.

[0015] Please see Figures 1-3 In this embodiment of the utility model, a waterproof heat-insulating pipe includes a working steel pipe 101, a heat-insulating layer 102, a protective layer 103, and a waterproof layer 105.

[0016] The insulation layer 102 is disposed on the outside of the working steel pipe 101 and is fixedly connected to the working steel pipe 101. The waterproof layer 105 is disposed on both sides of the working steel pipe 101 near the port of the working steel pipe 101. The protective layer 103 is disposed on the outside of the insulation layer 102 and the waterproof layer 105.

[0017] During operation, the interior of the working steel pipe 101 serves as the path for medium transportation. The insulation layer 102 provides efficient thermal insulation, reducing heat loss during pipeline transport. The outer protective layer 103 protects against external water entering the insulation layer 102, preventing it from losing its insulation function. During production, the lengths of the insulation layer 102 and the protective layer 103 are shorter than those of the working steel pipe 101.

[0018] During the installation of the insulated pipeline, multiple working steel pipes 101 are fixedly connected at their ends. After the pipeline is connected, insulation and protection are applied to the connection ports. During use, a waterproof layer 105 is installed near the connection ports. The purpose of the waterproof layer 105 is to prevent leaks from the working steel pipes 101 in the event of a leak, ensuring that the leaked liquid only contacts the insulation layer 102 at the connection port, while the insulation layer 102 on the outside of the pipe body remains in contact with the leaked liquid, thus guaranteeing the insulation effect. Subsequent repairs only require repairing or replacing the insulation layer 102 at the connection ports.

[0019] The waterproof layer 105 is made of spherical silicone.

[0020] The waterproof layer 105 uses spherical silicone, which has a high packing density, allowing for the tightest packing. It is also chemically stable, resistant to chemical corrosion, and provides excellent waterproofing.

[0021] The marking strip 104 is set on the outside of the protective layer 103 at the corresponding position of the waterproof layer 105.

[0022] The marking strip 104 makes it easier to determine the location of the waterproof layer 105 during later maintenance, and further determine the location where the insulation layer has lost its function due to leakage.

[0023] The insulation layer 102 is made of polyurethane.

[0024] During operation, polyurethane coating is sprayed on the outside of the working steel pipe 101 to serve as the insulation layer 102. After the polyurethane is sprayed on the outside of the working steel pipe 101, it is foamed into multiple tiny closed bubbles. Then, the volume of the foam expands rapidly and fills all the spaces. Afterward, the polyurethane quickly forms a hard foam plastic layer with a very high closed-cell rate. Polyurethane has a very low thermal conductivity, good airtightness, and good insulation effect.

[0025] The protective layer 103 is made of polyethylene and is wrapped around the outside of the insulation layer 102.

[0026] The outer side of the insulation layer 102 is made of high-density polyethylene as a protective layer 103. Polyethylene is a polymer material that is completely waterproof and can effectively prevent groundwater or moisture from penetrating into the polyurethane, ensuring the long-term stable insulation performance of the polyurethane. In addition to its waterproof function, it can also serve as mechanical protection. Furthermore, polyethylene is corrosion-resistant and has a long service life.

[0027] The working principle of this utility model is as follows: By setting up a waterproof layer and using spherical silicone near the pipe connection port, the polyurethane that comes into contact with water loses its insulation function when a leak occurs at the pipe connection port. The spherical silicone will control the extent of the water leakage affecting the polyurethane near the pipe connection port, preventing it from causing too much impact and facilitating the later inspection and replacement of the polyurethane at the leak point.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waterproof heat-insulating pipe, characterized in that, include: Working steel pipe (101); The insulation layer (102) is set on the outside of the working steel pipe (101) and fixedly connected to the working steel pipe (101); A waterproof layer (105) is provided on both sides of the working steel pipe (101) near the port of the working steel pipe (101); A protective layer (103) is provided on the outside of the insulation layer (102) and the waterproof layer (105).

2. The waterproof heat-insulating pipe according to claim 1, characterized in that, Waterproof layer (105) is made of spherical silicone.

3. The waterproof heat-insulating pipe according to claim 1, characterized in that, The marking strip (104) is set on the outside of the protective layer (103) at the corresponding position of the waterproof layer (105).

4. A waterproof heat-insulating pipe according to claim 1, characterized in that, The insulation layer (102) is made of polyurethane.

5. A waterproof heat-insulating pipe according to claim 1, characterized in that, The protective layer (103) is made of polyethylene and is wrapped around the outside of the insulation layer (102).

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