Copper-iron outer pipe assembly of compressor

Abstract

The utility model discloses a compressor copper-iron outer pipe assembly, the outer pipe assembly comprises an outer pipe, a sealing end cover and a connecting piece, the outer pipe is composed of an iron pipe outer layer, a copper pipe inner layer and a middle buffer layer, the middle buffer layer effectively absorbs stress brought by temperature change, mechanical vibration or external impact, friction and damage between the copper pipe and the iron pipe are reduced, and the service life of the outer pipe is prolonged. Sealing end covers are arranged at the two ends of the outer pipe and connected with the outer pipe in an interference fit mode, good sealing performance is guaranteed, leakage or external pollutants are prevented from entering a system, connecting pieces are installed on the sealing end covers and used for pipe fitting connection, and the connecting pieces are flange plates and provided with sealing rings. The filter piece is fixed in the pipe opening of the sealing end cover, the detachable filter screen disc design is adopted, cleaning or replacement is convenient, and the system is prevented from being damaged by impurities.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fittings, in particular to a copper-iron outer pipe component of a compressor. Background Art

[0002] In existing compressor systems, copper-iron outer tube assemblies are important components and are widely used in refrigeration, air conditioning and other fields of compressors. These copper-iron outer tube assemblies are usually used to transport gas or liquid media and withstand the pressure and temperature fluctuations inside the system and the influence of external vibration. However, the existing copper-iron outer tube assemblies still have some shortcomings that cannot be ignored during long-term use, which are mainly reflected in the following aspects:

[0003] 1. During the operation of the compressor, especially in high temperature, high pressure or high frequency vibration working environment, the copper and iron outer pipe components are easily affected by stress. Temperature changes, mechanical vibration or external impact may cause friction between the copper and iron pipes, which may cause pipe wear, rupture or even leakage, affecting the stability and service life of the equipment.

[0004] 2. Most existing copper-iron outer pipe assemblies lack effective filtration devices, making them ineffective in filtering impurities within the pipes. Over time, oil, dust, and other solid particles can accumulate inside the pipes. These impurities can adversely affect the compressor system, increasing system failure rates and maintenance costs. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a compressor copper-iron outer tube assembly with a stable structure, a long service life and a filtering effect.

[0006] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a compressor copper-iron outer tube assembly, including an outer tube, a sealing end cover and a connecting piece, the outer tube includes an iron tube outer layer, a copper tube inner layer, and an intermediate buffer layer, the intermediate buffer layer is fixedly connected to the inner wall of the iron tube outer layer, the copper tube inner layer is fixedly connected to the inner wall of the intermediate buffer layer, both ends of the outer tube are fixedly connected to the sealing end cover, the sealing end cover is provided with a pipe opening, and the sealing end cover is fixedly connected to the connecting piece.

[0007] In the above technical solution, the middle buffer layer is a rubber buffer layer.

[0008] In the above technical solution, a sealing groove is provided on the sealing end cover, and the outer layer of the iron tube and the inner layer of the copper tube are respectively located in the sealing grooves. The outer wall of the outer layer of the iron tube conflicts with the outer groove wall of the sealing groove, and the inner wall of the inner layer of the copper tube conflicts with the inner groove wall of the sealing groove.

[0009] In the above technical solution, a filter element is fixedly connected to the pipe opening of a group of the sealing end covers.

[0010] In the above technical solution, a mounting platform is fixedly connected to the inner wall of the pipe mouth, and a plurality of groups of screw holes are provided on the mounting platform. The filter element adopts a filter mesh plate, and a mounting hole is provided on the filter mesh plate corresponding to each group of the screw holes, and a bolt is provided. The bolt passes through the mounting hole and is threadedly connected to the screw hole.

[0011] In the above technical solution, the connecting member adopts a flange, and the connecting member is equipped with a sealing ring.

[0012] In the above technical solution, the sealing end cover is made of copper, the connecting piece is made of copper, and the connecting piece and the sealing end cover are of an integrated structure;

[0013] The filter element is a copper filter element.

[0014] Beneficial effects of the utility model:

[0015] 1. The intermediate buffer layer effectively absorbs stress caused by temperature changes, mechanical vibration, or external impact. This buffering effect can reduce friction and damage between copper and iron pipes, extending the service life of components. It is particularly suitable for scenarios where large vibrations and temperature fluctuations are generated during compressor operation. The presence of the buffer layer can reduce internal and external stresses caused by thermal expansion, vibration, or pressure changes in the piping system when operating under high pressure or high temperature, thereby avoiding structural damage caused by local stress concentration.

[0016] 2. The sealing end caps are interference fit with both ends of the outer tube. That is, the ends of the outer tube are inserted into the sealing grooves for sealing, making the outer tube structure more stable and sealing better, preventing leakage or external contaminants from entering the system;

[0017] 3. A filter is provided, through which impurities inside the outer tube can be filtered to prevent the impurities from damaging the system, and can reduce the installation of subsequent filter components, thereby enhancing the practicality of the component. The filter adopts a detachable structure, so that it can be cleaned and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the decomposition structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the outer tube in the utility model;

[0021] Figure 4This is a schematic diagram of the filter installation structure in the utility model.

[0022] In the figure: 100 outer tube, 101 iron tube outer layer, 102 copper tube inner layer, 103 middle buffer layer, 200 sealing end cover, 201 pipe mouth, 202 sealing groove, 300 connecting piece, 301 sealing ring, 302 filter element, 303 mounting platform, 304 screw hole, 305 mounting hole, 306 bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] See also Figure 1 —4. A copper-iron outer tube assembly for a compressor, comprising an outer tube 100, a sealing end cover 200, and a connector 300. The outer tube 100 comprises an iron tube outer layer 101, a copper tube inner layer 102, and an intermediate buffer layer 103. The intermediate buffer layer 103 is fixedly connected to the inner wall of the iron tube outer layer 101, and the copper tube inner layer 102 is fixedly connected to the inner wall of the intermediate buffer layer 103. The intermediate buffer layer 103 herein is a rubber buffer layer. The provision of the intermediate buffer layer 103 effectively absorbs stresses generated by temperature changes, mechanical vibrations, or external impacts. This buffering effect can reduce friction and damage between the copper tube and the iron tube, thereby extending the service life of the components. The assembly is particularly suitable for use in scenarios where large vibrations and temperature fluctuations are generated during operation of the compressor. Furthermore, the presence of the buffer layer enables the piping system to reduce internal and external stresses caused by thermal expansion, vibrations, or pressure changes when operating under high pressure or high temperature, thereby avoiding structural damage caused by local stress concentration.

[0025] Furthermore, in order to seal both ends of the outer tube 100, sealing end caps 200 are fixedly connected to both ends of the outer tube 100. The sealing end caps 200 are provided with a pipe orifice 201, which is used to realize the flow of the medium. Specifically, the sealing end caps 200 are connected to the two ends of the pipe fitting by an interference fit, that is, a sealing groove 202 is provided on the sealing end caps 200, and the iron tube outer layer 101 and the copper tube inner layer 102 are respectively located in the sealing grooves 202. The outer wall of the iron tube outer layer 101 conflicts with the outer groove wall of the sealing groove 202, and the inner wall of the copper tube inner layer 102 conflicts with the inner groove wall of the sealing groove 202. Through the above structure, the structure of the outer tube 100 is more stable and the sealing is better, preventing leakage or external contaminants from entering the system.

[0026] In addition, a connector 300 is fixedly connected to the sealing end cover 200. The connector 300 is used to connect the pipes. In this embodiment, the connector 300 is a flange and is equipped with a sealing ring 301.

[0027] Further optimized, a filter element 203 is fixedly connected to the pipe mouth 201 of a set of sealing end caps 200, and the medium transported inside the pipeline is filtered through the filter element 203 to prevent impurities from damaging the system. In addition, a mounting platform 204 is fixedly connected to the inner wall of the pipe mouth 201, and a plurality of groups of screw holes 205 are provided on the mounting platform 204. The filter element 203 adopts a filter mesh disk, and a mounting hole 206 is provided on the filter mesh disk corresponding to each group of screw holes 205. A bolt 207 is provided. The bolt 207 passes through the mounting hole 206 and is threadedly connected to the screw hole 205. In this way, the filter element 203 can be disassembled, so that impurities accumulated inside can be cleaned or the filter element 203 can be replaced.

[0028] Finally, the sealing end cover 200 and the connecting piece 300 are both made of copper, which has excellent corrosion resistance. The connecting piece 300 and the sealing end cover 200 adopt an integrated structure to ensure the firmness of the connection part. Of course, the filter element 203 is also made of copper to avoid corrosion and cause filtration failure.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0030] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A copper-iron outer tube assembly for a compressor, comprising an outer tube (100), a sealing end cover (200) and a connector (300), characterized in that: The outer tube (100) comprises an iron tube outer layer (101), a copper tube inner layer (102), and an intermediate buffer layer (103); the intermediate buffer layer (103) is fixedly connected to the inner wall of the iron tube outer layer (101); the copper tube inner layer (102) is fixedly connected to the inner wall of the intermediate buffer layer (103); both ends of the outer tube (100) are fixedly connected to the sealing end caps (200); the sealing end caps (200) are provided with a pipe opening (201); and the sealing end caps (200) are fixedly connected to a connecting piece (300).

2. A compressor copper-iron outer tube assembly according to claim 1, characterized in that: The middle buffer layer (103) is a rubber buffer layer.

3. The copper-iron outer tube assembly of a compressor according to claim 1, characterized in that: The sealing end cover (200) is provided with a sealing groove (202), and the outer layer (101) of the iron pipe and the inner layer (102) of the copper pipe are respectively located in the sealing groove (202). The outer wall of the outer layer (101) of the iron pipe abuts against the outer groove wall of the sealing groove (202), and the inner wall of the inner layer (102) of the copper pipe abuts against the inner groove wall of the sealing groove (202).

4. The copper-iron outer tube assembly of a compressor according to claim 1, characterized in that: A filter element (203) is fixedly connected to the pipe opening (201) of a group of sealing end covers (200).

5. A compressor copper-iron outer tube assembly according to claim 4, characterized in that: A mounting platform (204) is fixedly connected to the inner wall of the pipe mouth (201), and a plurality of groups of screw holes (205) are provided on the mounting platform (204). The filter element (203) adopts a filter mesh disk, and a mounting hole (206) is provided on the filter mesh disk corresponding to each group of the screw holes (205), and a bolt (207) is provided. The bolt (207) passes through the mounting hole (206) and is threadedly connected to the screw hole (205).

6. The copper-iron outer tube assembly of a compressor according to claim 1, characterized in that: The connecting piece (300) is a flange, and the connecting piece (300) is matched with a sealing ring (301).

7. The copper-iron outer tube assembly of a compressor according to claim 4, characterized in that: The sealing end cover (200) is made of copper, the connecting piece (300) is made of copper, and the connecting piece (300) and the sealing end cover (200) are an integrated structure; The filter element (203) is made of copper.

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