Novel precise copper pipe for refrigeration equipment

Abstract

The utility model discloses a novel precise copper pipe for refrigeration equipment, which comprises a precise copper pipe body, a first corrosion-resistant protective layer is arranged on the outer wall of the precise copper pipe body, and a second corrosion-resistant protective layer is arranged on the inner wall of the precise copper pipe body. By arranging the first corrosion-resistant protective layer and the second corrosion-resistant protective layer, the precise copper pipe body can be comprehensively protected from multiple layers and angles, and the resistance of the precise copper pipe body to various corrosion factors is greatly enhanced. No matter the chemical corrosion of an internal refrigerant or the corrosion of moisture, oxygen, corrosive gas and the like in an external environment can be effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigeration equipment accessory technical field, concretely is a new type precision copper pipe for refrigeration equipment. BACKGROUND

[0002] The precision copper pipe refers to the copper pipe manufactured by high-precision processing technology, which has excellent thermal conductivity, electrical conductivity, processability and corrosion resistance. According to different uses and manufacturing processes, the precision copper pipe can be divided into red copper pipe, brass pipe, bronze pipe, white copper pipe and other types. In the operation process of refrigeration equipment such as air conditioner, refrigerator and the like, the precision copper pipe is often used to connect condenser, evaporator and liquid storage tank and other components, to undertake the transportation of refrigerant, to realize heat exchange to achieve refrigeration effect.

[0003] According to the search, the patent with the publication number CN221762879U discloses a copper pipe for refrigeration equipment, which comprises a copper pipe body, one end of the copper pipe body is fixedly connected with a connecting pipe, the surface of the connecting pipe is fixedly connected with a clamping ring, the surface of the clamping ring is fixedly connected with a plurality of clamping blocks, the other end of the copper pipe body is provided with a connecting head, and the inner wall of the connecting head is uniformly provided with a plurality of sliding grooves and clamping grooves.

[0004] However, the above-mentioned patent has the following defects in actual use: in a complex use environment, especially long-term contact with air containing corrosive substances, moisture or refrigerant, etc., the surface of the copper pipe is prone to corrosion, which not only reduces the service life of the copper pipe, but also may cause the pipe wall to be thin, leakage and other problems, affecting the normal operation of the refrigeration equipment and increasing the maintenance cost. Therefore, we propose a new type of precision copper pipe for refrigeration equipment. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a new type of precision copper pipe for refrigeration equipment to solve the problems in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a new type of precision copper pipe for refrigeration equipment, comprising a precision copper pipe body, the outer wall of the precision copper pipe body is provided with a first corrosion-resistant protective layer, and the inner wall of the precision copper pipe body is provided with a second corrosion-resistant protective layer.

[0007] Further, the first corrosion-resistant protective layer comprises a polyurethane coating layer, a first fluorocarbon coating layer and a graphene modified coating layer, the outer wall of the precision copper pipe body is coated with a polyurethane coating layer, the polyurethane coating layer is uniformly coated on the outer wall of the precision copper pipe body by brushing or rolling, and then natural solidification is carried out at room temperature to form.

[0008] Further, the outer wall of the polyurethane coating layer is provided with a first fluorocarbon coating layer, the thickness of the polyurethane coating layer is less than the thickness of the first fluorocarbon coating layer, and the first fluorocarbon coating layer is obtained by spraying fluorocarbon coating on the outer wall of the polyurethane coating layer through an electrostatic spraying process and then curing by high-temperature baking.

[0009] Further, the outer wall of the first fluorocarbon coating layer is provided with a graphene modified coating layer, the thickness of the first fluorocarbon coating layer is less than the thickness of the graphene modified coating layer, and the graphene modified coating layer is obtained by spraying or brushing the graphene modified coating on the outer wall of the first fluorocarbon coating layer.

[0010] Further, the second corrosion-resistant protective layer comprises an epoxy resin coating layer, a ceramic coating layer and a second fluorocarbon coating layer, the inner wall of the precise copper pipe body is provided with the epoxy resin coating layer, and the epoxy resin coating layer is obtained by uniformly spraying the epoxy resin coating on the inner wall of the precise copper pipe body through a spraying process.

[0011] Further, the inner wall of the epoxy resin coating layer is provided with the ceramic coating layer, the thickness of the ceramic coating layer is greater than the thickness of the epoxy resin coating layer, and the ceramic coating layer is obtained by spraying the ceramic powder on the inner wall of the epoxy resin coating layer by using a plasma spraying technology.

[0012] Further, the inner wall of the ceramic coating layer is provided with the second fluorocarbon coating layer, the thickness of the second fluorocarbon coating layer is greater than the thickness of the ceramic coating layer, and the second fluorocarbon coating layer is obtained by spraying the fluorocarbon coating on the inner wall of the ceramic coating layer through an electrostatic spraying process.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The first corrosion-resistant protective layer and the second corrosion-resistant protective layer are arranged, the precise copper pipe body can be protected from multiple aspects and angles, and the resistance of the precise copper pipe body to various corrosion factors is greatly enhanced.

[0015] 2、The precise copper pipe body has excellent corrosion resistance, the pipe wall of the precise copper pipe body is not easy to thin and the strength is not easy to decrease in a long-term use process, and therefore the service life of the copper pipe is remarkably prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the utility model.

[0017] Figure 2 It is the left view structural schematic drawing of the precision copper pipe body of the utility model;

[0018] Figure 3 It is the layered structure schematic drawing of the first corrosion-resistant protective layer of the utility model;

[0019] Figure 4 It is the layered structure schematic drawing of the second corrosion-resistant protective layer of the utility model.

[0020] In the drawing: 1, precision copper pipe body; 2, first corrosion-resistant protective layer; 201, polyurethane coating layer; 202, first fluorocarbon coating layer; 203, graphene modified coating layer; 3, second corrosion-resistant protective layer; 301, epoxy resin coating layer; 302, ceramic coating layer; 303, second fluorocarbon coating layer. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included one or more. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0023] Please refer to Figures 1-4 A new type of precision copper pipe for refrigeration equipment, comprising a precision copper pipe body 1, a first corrosion-resistant protective layer 2 is arranged on the outer wall of the precision copper pipe body 1, and a second corrosion-resistant protective layer 3 is arranged on the inner wall of the precision copper pipe body 1.

[0024] The left and right ends of the precision copper pipe body 1 are both provided with a connecting head.

[0025] The first corrosion-resistant protective layer 2 comprises a polyurethane coating layer 201, a first fluorocarbon coating layer 202 and a graphene modified coating layer 203. The polyurethane coating layer 201 is coated on the outer wall of the precise copper pipe body 1 by brushing or rolling. The polyurethane coating layer 201 is formed by uniformly coating polyurethane coating on the outer wall of the precise copper pipe body 1 by brushing or rolling and then naturally solidifying at room temperature. The polyurethane has good flexibility and weather resistance, can adapt to changes in different environmental temperatures, and can effectively block external moisture, oxygen and other corrosive factors. The first fluorocarbon coating layer 202 is arranged on the outer wall of the polyurethane coating layer 201. The thickness of the polyurethane coating layer 201 is less than that of the first fluorocarbon coating layer 202. The first fluorocarbon coating layer 202 is formed by spraying fluorocarbon coating on the outer wall of the polyurethane coating layer 201 by electrostatic spraying process and then high-temperature baking and solidification. The fluorocarbon coating has good adhesion and protection performance. The fluorocarbon material has strong corrosion resistance, oxidation resistance and ultraviolet resistance, which greatly improves the protection capability of the outer wall of the copper pipe in harsh environment.

[0026] The graphene modified coating layer 203 is arranged on the outer wall of the first fluorocarbon coating layer 202. The thickness of the first fluorocarbon coating layer 202 is less than that of the graphene modified coating layer 203. The graphene modified coating layer 203 is formed by spraying or brushing graphene modified coating on the outer wall of the first fluorocarbon coating layer 202 and then drying. The excellent electrical conductivity and chemical stability of graphene can further enhance the protection effect of the coating layer. The unique two-dimensional structure of graphene improves the compactness of the coating layer and effectively prevents the penetration of corrosive medium.

[0027] The second corrosion-resistant protective layer 3 comprises an epoxy resin coating layer 301, a ceramic coating layer 302 and a second fluorocarbon coating layer 303. The epoxy resin coating layer 301 is arranged on the inner wall of the precise copper pipe body 1.

[0028] The epoxy resin coating layer 301 is formed by uniformly spraying epoxy resin coating on the inner wall of the precise copper pipe body 1 by spraying process and then curing at a specific temperature to firmly adhere the epoxy resin coating layer 301 to the inner wall of the precise copper pipe body 1.

[0029] The ceramic coating layer 302 is arranged on the inner wall of the epoxy resin coating layer 301. The thickness of the ceramic coating layer 302 is greater than that of the epoxy resin coating layer 301.

[0030] The ceramic coating layer 302 is formed by spraying ceramic powder onto the inner wall of the epoxy resin coating layer 301 by using a plasma spraying technology, and has a certain thickness and hardness.

[0031] The inner wall of the ceramic coating layer 302 is provided with a second fluorocarbon coating layer 303, and the thickness of the second fluorocarbon coating layer 303 is greater than that of the ceramic coating layer 302.

[0032] The second fluorocarbon coating layer 303 is formed by spraying fluorocarbon coating onto the inner wall of the ceramic coating layer 302 by using an electrostatic spraying process, and then high-temperature baking and curing are performed to make the fluorocarbon coating layer have good adhesion and protection performance.

[0033] In actual application, the corrosion-resistant coating layer structure is arranged on the inner wall and the outer wall of the precision copper pipe body 1, and the precision copper pipe body 1 is protected from all directions in multiple aspects and angles, so that the resistance of the precision copper pipe body 1 to various corrosion factors is greatly enhanced. No matter chemical corrosion of the internal refrigerant or corrosion of moisture, oxygen and corrosive gas in the external environment, the precision copper pipe body 1 can be effectively protected.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of precision copper tube for refrigeration equipment, comprising a precision copper tube body (1), characterized in that: The outer wall of the precision copper pipe body (1) is provided with a first corrosion-resistant protective layer (2), the first corrosion-resistant protective layer (2) comprises a polyurethane coating layer (201), a first fluorocarbon coating layer (202) and a graphene modified coating layer (203), the outer wall of the polyurethane coating layer (201) is provided with the first fluorocarbon coating layer (202), the outer wall of the first fluorocarbon coating layer (202) is provided with the graphene modified coating layer (203), the inner wall of the precision copper pipe body (1) is provided with a second corrosion-resistant protective layer (3), the second corrosion-resistant protective layer (3) comprises an epoxy resin coating layer (301), a ceramic coating layer (302) and a second fluorocarbon coating layer (303), the inner wall of the precision copper pipe body (1) is provided with the epoxy resin coating layer (301), the inner wall of the epoxy resin coating layer (301) is provided with the ceramic coating layer (302), and the inner wall of the ceramic coating layer (302) is provided with the second fluorocarbon coating layer (303).

2. A novel precision copper tube for refrigeration equipment as claimed in claim 1, wherein: The thickness of the polyurethane coating layer (201) is less than the thickness of the first fluorocarbon coating layer (202).

3. A novel precision copper tube for refrigeration equipment as claimed in claim 1, wherein: The thickness of the first fluorocarbon coating layer (202) is less than the thickness of the graphene modified coating layer (203).

4. A novel precision copper tube for refrigeration equipment as claimed in claim 1, wherein: The thickness of the ceramic coating layer (302) is greater than the thickness of the epoxy resin coating layer (301).

5. A novel precision copper tube for refrigeration equipment as claimed in claim 1, wherein: The thickness of the second fluorocarbon coating layer (303) is greater than the thickness of the ceramic coating layer (302).

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