A corrosion-resistant galvanized spiral air duct

Abstract

The utility model provides a corrosion-resistant galvanized spiral air duct, which includes an air duct body, a galvanized layer is provided on the surface of the air duct body, and a PVE wrapping layer is provided outside the galvanized layer. The corrosion-resistant galvanized spiral air duct provided by the utility model provides corrosion protection for the air duct body by providing a galvanized layer, and a PVE wrapping layer is further provided on the outside of the galvanized layer to further improve the corrosion resistance of the air duct body. The PVE wrapping layer is divided into multiple sections, so that the air duct body of the spiral air duct can be bent to a certain extent, which is convenient for installation. Eight reinforcement strips are provided along the circumference of the PVE wrapping layer to improve the strength of the PVE wrapping layer.

Description

Technical Field

[0001] The utility model belongs to the technical field of spiral air ducts, and in particular relates to an anti-corrosion galvanized spiral air duct. Background Art

[0002] Spiral ducts are mainly used to connect air between two places, playing a role in ventilation. The installation of spiral ducts significantly reduces the connection points between pipes, reducing the leakage of pipe joints to a minimum. Spiral ducts are widely used. Purification system return air ducts, central air conditioning ventilation ducts, industrial supply and exhaust ventilation ducts, environmental protection system suction and exhaust ducts, mining gas extraction pipes, mining rubber cloth air ducts, etc.

[0003] Spiral ducts are classified as ducts because they were first used for ventilation and cooling. This is a name given according to its purpose, but it can also be used in other places, even for drainage, liquid drainage or as a container, so it cannot be called an air duct. According to the structure, it should be called a spiral bite seam thin-walled tube, and because it is mainly made of metal, it is called a spiral bite seam metal tube. If it is classified and named according to the material, it can probably be called these names: galvanized (iron) spiral tube, stainless steel spiral tube, aluminum spiral tube, or to distinguish it from the existing stainless steel tube, it can be called an ultra-thin stainless steel tube.

[0004] When spiral ducts are used outdoors, they are easily corroded and aged due to long-term exposure, resulting in air leakage. Utility Model Content

[0005] The main purpose of the utility model is to provide a corrosion-resistant galvanized spiral air duct, which is used to improve the corrosion resistance of the spiral air duct and thus increase its service life.

[0006] To achieve the above purpose, the utility model provides a corrosion-resistant galvanized spiral air duct, which comprises an air duct body, a surface of which is provided with a galvanized layer, and a PVE wrapping layer is provided outside the galvanized layer.

[0007] In a possible implementation, the PVE wrapping layer is provided with a plurality of sections, and each section of the PVE wrapping layer is arranged at intervals.

[0008] In a possible implementation, a reinforcement strip is provided in the PVE wrapping layer.

[0009] In a possible implementation, eight reinforcement strips are evenly distributed along the outer wall of the air duct body.

[0010] In a possible implementation manner, the spacing distance between the wrapping layers is smaller than the length of the wrapping layer.

[0011] The utility model provides an anti-corrosion galvanized spiral air duct, in which a galvanized layer is arranged to provide anti-corrosion protection for the air duct body, and a PVE wrapping layer is further arranged on the outside of the galvanized layer to further improve the corrosion resistance of the air duct body. The PVE wrapping layer is divided into multiple sections, which can allow the air duct body of the spiral air duct to be bent to a certain extent for easy installation. Eight reinforcement strips are arranged along the circumference of the PVE wrapping layer to improve the strength of the PVE wrapping layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view schematic diagram of a corrosion-resistant galvanized spiral air duct provided by the utility model;

[0013] Figure 2 It is a side view of a corrosion-resistant galvanized spiral air duct provided by the utility model. DETAILED DESCRIPTION

[0014] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0015] In the description of the present application, it should be understood that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0016] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0017] See attached figure Figure 1 The utility model provides a corrosion-resistant galvanized spiral air duct, which comprises an air duct body 1, a galvanized layer 2 is arranged on the surface of the air duct body 1, and a PVE wrapping layer 3 is arranged outside the galvanized layer 2.

[0018] In a possible implementation, the PVE wrapping layer 3 is provided with a plurality of sections, and each section of the PVE wrapping layer 3 is arranged at intervals.

[0019] In a possible implementation, a reinforcement strip 4 is provided in the PVE wrapping layer 3 .

[0020] In a possible implementation, eight reinforcement strips 4 are evenly distributed along the outer wall of the air duct body 1 .

[0021] In a possible implementation manner, the spacing distance between the wrapping layers is smaller than the length of the wrapping layer.

[0022] The utility model provides an anti-corrosion galvanized spiral air duct, in which a galvanized layer 2 is arranged to provide anti-corrosion protection for the air duct body 1, and a PVE wrapping layer 3 is further arranged on the outside of the galvanized layer 2 to further improve the corrosion resistance of the air duct body 1. The PVE wrapping layer 3 is divided into multiple sections, so that the air duct body 1 of the spiral air duct can be bent to a certain extent for easy installation. Eight reinforcement strips 4 are arranged along the circumference of the PVE wrapping layer 3 to improve the strength of the PVE wrapping layer 3.

[0023] It is worth mentioning that for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A corrosion-resistant galvanized spiral duct, characterized in that: It comprises an air duct body, the surface of which is provided with a galvanized layer, the outside of which is provided with a PVE wrapping layer, the PVE wrapping layer is provided with a plurality of sections, each section of the PVE wrapping layer is arranged at intervals, and a reinforcement strip is arranged inside the PVE wrapping layer.

2. The corrosion-resistant galvanized spiral air duct according to claim 1 is characterized in that: The reinforcement strips are evenly distributed in a number of 8 along the outer wall of the air duct body.

3. The corrosion-resistant galvanized spiral air duct according to claim 2 is characterized in that: The spacing distance between the wrapping layers is smaller than the length of the wrapping layers.

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