Combined heat preservation type precise copper pipe based on refrigeration equipment

Abstract

The utility model discloses a combined heat preservation type precise copper pipe based on refrigeration equipment, which comprises a copper pipe body, two ends of the copper pipe body are respectively provided with a connector, and the surface of the copper pipe body is coated with a heat preservation protective layer. Through the combined design of the heat preservation protection layer, the inner heat insulation layer, the aerogel felt layer, the PU foaming layer, the glass fiber cotton layer, the outer composite protection layer, the Kevlar fiber woven layer and the FRP material layer, a multi-layer protection heat preservation structure is formed, heat transfer is effectively reduced, refrigerating capacity loss is reduced, refrigerating efficiency is improved, and energy is saved.

Description

Technical Field

[0001] This utility model relates to the field of copper tube technology, specifically to a combined heat-insulating precision copper tube based on refrigeration equipment. Background Technology

[0002] In refrigeration equipment, copper pipes are a key component for refrigerant transport, and their performance directly affects the efficiency and stability of the refrigeration system.

[0003] A search revealed a patent with application number CN202420630555.3, which discloses a detachable refrigeration copper pipe for a refrigeration device, including a refrigeration device connecting pipe and a refrigeration copper pipe. A first connecting plate is fixedly connected to the outer wall of the left end of the refrigeration copper pipe, and a second connecting plate is fixedly connected to the outer wall of the right end of the refrigeration device connecting pipe. A fixing mechanism is installed on the right side of the second connecting plate, and a connecting mechanism is installed on the outside of the fixing mechanism.

[0004] However, in actual use, the above-mentioned patent has the following defects: during the refrigeration process, due to the lack of effective insulation measures, the refrigerant is prone to heat exchange with the external environment when flowing in the copper tube. This not only leads to the loss of refrigeration capacity, reduces refrigeration efficiency, and increases energy consumption, but may also produce condensate on the surface of the copper tube, corroding the copper tube and shortening its service life. Therefore, we propose a combined insulation precision copper tube based on refrigeration equipment. Utility Model Content

[0005] The purpose of this invention is to provide a combined heat-insulating precision copper tube based on refrigeration equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined heat-insulating precision copper tube based on refrigeration equipment, comprising a copper tube body, with connectors installed at both ends of the copper tube body, and the surface of the copper tube body covered with a heat-insulating protective layer, the heat-insulating protective layer comprising an inner heat-insulating layer and an outer composite protective layer, the surface of the copper tube body covered with the inner heat-insulating layer, the surface of the inner heat-insulating layer being fixedly bonded to the outer composite protective layer, the inner heat-insulating layer comprising an aerogel felt layer, a PU foam layer, and a glass fiber cotton layer, the surface of the copper tube body covered with... An aerogel felt layer is provided, the surface of which is covered with a PU foam layer. The PU foam layer and the aerogel felt layer are bonded together with an organosilicon adhesive to ensure a tight fit between the two layers and to work together to provide insulation. The surface of the PU foam layer is covered with a glass fiber cotton layer. The outer composite protective layer includes a Kevlar fiber woven layer and an FRP material layer. The surface of the glass fiber cotton layer is covered with a Kevlar fiber woven layer, which is made of tightly woven Kevlar fibers. The surface of the Kevlar fiber woven layer is covered with an FRP material layer.

[0007] Furthermore, the Kevlar fiber braided layer and the FRP material layer are bonded together with epoxy resin adhesive.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] This utility model, through the combined design of a thermal insulation protective layer, an inner thermal insulation layer, an aerogel felt layer, a PU foam layer, a glass fiber cotton layer, an outer composite protective layer, a Kevlar fiber braided layer, and an FRP material layer, forms a multi-layer protective thermal insulation structure, which effectively reduces heat transfer, reduces cooling capacity loss, improves cooling efficiency, and saves energy.

[0010] The FRP material layer of the outer composite protective layer, with its high strength, corrosion resistance and aging resistance, can more effectively protect the inner structure from external damage. At the same time, the PU foam layer of the inner heat insulation layer has good weather resistance, which makes the entire composite insulated precision copper pipe have a longer service life. Attached Figure Description

[0011] Figure 1 This is a front view structural diagram of the present utility model;

[0012] Figure 2 This is a schematic diagram of the assembly structure of the copper tube body and the thermal insulation protective layer of this utility model;

[0013] Figure 3 This is a schematic diagram of the layered structure of the thermal insulation and protective layer of this utility model;

[0014] Figure 4 This is a schematic diagram of the assembly structure of the inner heat insulation layer and the outer composite protective layer of this utility model.

[0015] In the diagram: 1. Copper pipe body; 2. Connector; 3. Thermal insulation layer; 301. Inner thermal insulation layer; 3011. Aerogel felt layer; 3012. PU foam layer; 3013. Glass fiber cotton layer; 302. Outer composite protective layer; 3021. Kevlar fiber braided layer; 3022. FRP material layer. Detailed Implementation

[0016] 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.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] Please see Figure 1-4 A combined heat-insulating precision copper tube for refrigeration equipment includes a copper tube body 1, with connectors 2 installed at both ends for connecting to other components of the refrigeration equipment. The surface of the copper tube body 1 is covered with a heat-insulating protective layer 3. The heat-insulating protective layer 3 includes an inner heat-insulating layer 301 and an outer composite protective layer 302. The surface of the copper tube body 1 is covered with the inner heat-insulating layer 301, and the outer composite protective layer 302 is fixedly bonded to the surface of the inner heat-insulating layer 301.

[0019] The inner thermal insulation layer 301 includes an aerogel felt layer 3011, a PU foam layer 3012, and a glass fiber cotton layer 3013. The surface of the copper pipe body 1 is covered with the aerogel felt layer 3011. The aerogel felt layer 3011 and the copper pipe body 1 are bonded together by a thermally conductive structural adhesive. This thermally conductive structural adhesive can not only enhance the adhesion between the aerogel felt layer 3011 and the copper pipe body 1, but also ensure that heat can be smoothly transferred from the copper pipe body 1 to the aerogel felt layer 3011, thus avoiding local overheating.

[0020] The surface of the aerogel felt layer 3011 is covered with a PU foam layer 3012. The PU foam layer 3012 and the aerogel felt layer 3011 are bonded together with an organic silicone adhesive to ensure a tight fit between the two layers and to work together to provide insulation. The surface of the PU foam layer 3012 is covered with a glass fiber cotton layer 3013. The glass fiber cotton layer 3013 and the PU foam layer 3012 are bonded together with an organic silicone adhesive to ensure a tight fit between the two layers and to work together to provide insulation.

[0021] The outer composite protective layer 302 includes a Kevlar fiber braided layer 3021 and an FRP material layer 3022. The surface of the glass fiber wool layer 3013 is covered with the Kevlar fiber braided layer 3021, which is tightly woven from Kevlar fibers. Kevlar fibers have characteristics such as high strength, low density, wear resistance, and good chemical stability. This braided layer, wrapped around the outside of the glass fiber wool layer 3013, can significantly improve the overall strength of the copper tube, effectively resist external mechanical impacts, and prevent damage to the internal insulation structure caused by collisions. At the same time, the Kevlar fiber braided layer can further enhance the protection of the inner thermal insulation layer 301, and due to its low density, it will not significantly increase the weight of the copper tube. The Kevlar fiber braided layer 3021 and the glass fiber wool layer 3013 are bonded together using a special high-performance epoxy resin adhesive. This adhesive has good adhesion to both the Kevlar fiber braided layer 3021 and the glass fiber wool layer 3013, ensuring a firm bond between the two.

[0022] The surface of the Kevlar fiber braided layer 3021 is covered with an FRP material layer 3022. The Kevlar fiber braided layer 3021 and the FRP material layer are bonded together with epoxy resin adhesive. FRP material is a composite material composed of glass fiber and its fabric-reinforced resin matrix, possessing many excellent properties. Its tensile strength can reach 150-300MPa, which, compared to traditional high-strength polyethylene materials, can better resist external mechanical impacts, effectively protecting the inner thermal insulation layer 301. Furthermore, FRP material has excellent corrosion resistance to common acids, alkalis, salts, and other chemicals, maintaining structural stability even in harsh chemical environments, greatly extending the service life of the entire insulation structure.

[0023] In practical applications: Through the combined design of thermal insulation layer 3, inner thermal insulation layer 301, aerogel felt layer 3011, PU foam layer 3012, glass fiber cotton layer 3013, outer composite protective layer 302, Kevlar fiber braided layer 3021, and FRP material layer 3022, a multi-layer protective thermal insulation structure is formed, which effectively reduces heat transfer, reduces cooling capacity loss, improves cooling efficiency, and saves energy.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined heat-insulating precision copper tube based on refrigeration equipment, comprising a copper tube body (1), characterized in that: Both ends of the copper pipe body (1) are equipped with connectors (2). The surface of the copper pipe body (1) is covered with a thermal insulation protective layer (3). The thermal insulation protective layer (3) includes an inner thermal insulation layer (301) and an outer composite protective layer (302). The surface of the copper pipe body (1) is covered with an inner thermal insulation layer (301). An outer composite protective layer (302) is fixedly bonded to the surface of the inner thermal insulation layer (301). The inner thermal insulation layer (301) includes an aerogel felt layer (3011), a PU foam layer (3012), and a glass fiber cotton layer (3013). The surface of the tube body (1) is covered with an aerogel felt layer (3011), the surface of the aerogel felt layer (3011) is covered with a PU foam layer (3012), the surface of the PU foam layer (3012) is covered with a glass fiber cotton layer (3013), the outer composite protective layer (302) includes a Kevlar fiber braided layer (3021) and an FRP material layer (3022), the surface of the glass fiber cotton layer (3013) is covered with a Kevlar fiber braided layer (3021), and the surface of the Kevlar fiber braided layer (3021) is covered with an FRP material layer (3022).

2. The combined heat-insulating precision copper tube based on refrigeration equipment according to claim 1, characterized in that: The Kevlar fiber braided layer (3021) and the FRP material layer are bonded together with epoxy resin adhesive.

Images