Ultra-large helical angle thin tooth internal thread copper pipe

Abstract

The utility model relates to the technical field of copper pipes, in particular to an ultra-large helical angle thin tooth internal thread copper pipe which comprises a copper pipe body and a supporting rod, the supporting rod is fixedly connected to the inner side of the copper pipe body, an inner cylinder pipe is fixedly connected to one side of the supporting rod, first thin teeth are fixedly connected to the inner side of the copper pipe body, and a helical flow channel is formed in the inner side of the copper pipe body. A built-in heat exchange hole is formed in the inner side of the inner bobbin, a first conical shell is fixedly connected to the inner side of the built-in heat exchange hole, a conical hole is formed in the inner side of the first conical shell, a through opening is formed in the inner side of the inner bobbin, second thin teeth are fixedly connected to the outer side of the inner bobbin, and a second conical shell is fixedly connected to the outer side of the inner bobbin. When the 7 mm ultra-large helical angle thin tooth internal thread copper pipe is used for heat exchange, the airflow heat exchange performance can be improved, meanwhile, under the guiding effect of the second conical shell and the first conical shell on the wind direction, heat exchange can be conducted between airflow and refrigerants at different positions, and the heat exchange coefficient of the copper pipe is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of copper tubes, in particular to an ultra-large helical angle thin-tooth internal thread copper tube. Background Art

[0002] 7mm extra-large helix angle thin tooth internally threaded copper tube, also known as non-smooth tube, refers to an internally threaded TP2 copper tube with a smooth outer surface and a certain number of regular threads on the inner surface. Due to the increase in the inner surface area of ​​the internally threaded copper tube, its thermal conductivity is 20 to 30 percent higher than that of the smooth tube. With the world's energy shortage and the implementation of the domestic energy-efficient air-conditioning access system, internally threaded copper tubes are widely used in the air-conditioning and refrigeration industry.

[0003] However, for the 7mm ultra-large helix angle thin-tooth internally threaded copper tube, only a thread groove is arranged inside, which makes the heat exchange coefficient of the copper tube low and the heat exchange performance general. Therefore, a ultra-large helix angle thin-tooth internally threaded copper tube is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an ultra-large helix angle thin-tooth internally threaded copper tube to solve the problem that for a 7mm ultra-large helix angle thin-tooth internally threaded copper tube, only a thread groove is provided inside, resulting in a low heat exchange coefficient and general heat exchange performance of the copper tube.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A super-large spiral angle thin-tooth internal threaded copper tube, comprising a copper tube body and a support rod, the inner side of the copper tube body is fixedly connected to the support rod, one side of the support rod is fixedly connected to an inner tube, the inner side of the copper tube body is fixedly connected to a first thin tooth, a spiral flow channel is provided on the inner side of the copper tube body, a built-in heat exchange hole is opened on the inner side of the inner tube, a first cone shell is fixedly connected to the inner side of the built-in heat exchange hole, a cone hole is opened on the inner side of the first cone shell, a through opening is opened on the inner side of the inner tube, a second thin tooth is fixedly connected to the outer side of the inner tube, a second cone shell is fixedly connected to the outer side of the inner tube, and a reflux hole is opened on the inner side of the inner tube.

[0007] As a further optimization of the present invention, the inner side of the copper tube body is hollow, the inner side of the inner tube is hollow, and the diameter of the copper tube body is three times the diameter of the inner tube.

[0008] As a further optimization of the present invention, there are several support rods, spaces are provided between the support rods, and the support rods are symmetrically fixedly connected to the upper end and the lower end of the inner tube.

[0009] As a further optimization of the present invention, there are several first thin teeth, the first thin teeth are spirally fixed on the inner side of the copper tube body, and spiral flow channels are arranged between the first thin teeth.

[0010] As further optimized content of the present invention, wherein: the shape of the spiral flow channel is spiral, the support rod is fixed inside the spiral flow channel, the support rod is fixed between the second thin teeth, the number of the second thin teeth is the same as that of the first thin teeth, the spacing between the second thin teeth is the same as that of the first thin teeth, and the spacing between the first thin teeth is aligned with the spacing between the second thin teeth.

[0011] As a further optimization of the present invention, the shape of the second cone shell is the same as that of the first cone shell, the diameter of the second cone shell is larger than the diameter of the first cone shell, the outer side of the second cone shell fits with the inner side of the first thin tooth, the second thin tooth is inside the second cone shell, and the interior of the second cone shell is connected to the reflux hole.

[0012] As a further optimization of the present invention, the inner side of the built-in heat exchange hole is connected with the through-port, the number of the through-ports is several, the shape of the through-ports is the same as the setting of the reflux hole, the reflux hole is connected with the inner side of the built-in heat exchange hole, the through-port is located on the outside of the first conical shell, and the second conical shell and the inner side of the first conical shell are both provided with conical holes.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, by arranging the copper tube body, spiral flow channel, inner tube, second cone shell, first cone shell, second thin teeth, through opening and reflux hole, when the 7mm super large spiral angle thin teeth internal thread copper tube performs heat exchange, when the airflow passes through the inside of the copper tube body, the airflow passes through the gap between the second thin teeth and the first thin teeth, which can increase the heat exchange performance of the airflow. At the same time, under the guiding effect of the second cone shell and the first cone shell on the wind direction, the airflow can perform heat exchange with the refrigerant in different parts, thereby improving the heat exchange coefficient of the copper tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the copper tube body of the utility model;

[0017] Figure 3 This is a schematic diagram of the inner tube structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the second thin tooth structure of the utility model.

[0019] In the figure: 1. copper tube body; 2. support rod; 3. inner tube; 4. first thin tooth; 5. spiral flow channel; 6. first cone shell; 7. cone hole; 8. through mouth; 9. second thin tooth; 10. second cone shell; 11. return hole; 12. built-in heat exchange hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] A super-large spiral angle thin-tooth internal thread copper tube, comprising a copper tube body 1 and a support rod 2, the support rod 2 is fixedly connected to the inner side of the copper tube body 1, an inner tube 3 is fixedly connected to one side of the support rod 2, a first thin tooth 4 is fixedly connected to the inner side of the copper tube body 1, a spiral flow channel 5 is arranged on the inner side of the copper tube body 1, a built-in heat exchange hole 12 is opened on the inner side of the inner tube 3, a first cone shell 6 is fixedly connected to the inner side of the built-in heat exchange hole 12, a cone hole 7 is opened on the inner side of the first cone shell 6, a through opening 8 is opened on the inner side of the inner tube 3, a second thin tooth 9 is fixedly connected to the outer side of the inner tube 3, a second cone shell 10 is fixedly connected to the outer side of the inner tube 3, and a reflux hole 11 is opened on the inner side of the inner tube 3.

[0024] As a further implementation of this solution, the inner side of the copper tube body 1 is hollow, the inner side of the inner tube 3 is hollow, and the diameter of the copper tube body 1 is three times the diameter of the inner tube 3, so that the airflow can enter the space between the copper tube body 1 and the inner tube 3;

[0025] As a further implementation of this solution, there are several support rods 2, and spaces are provided between the support rods 2. The support rods 2 are symmetrically fixedly connected to the upper and lower ends of the inner tube 3, so as not to hinder the normal flow of air from the inside of the spiral flow channel 5;

[0026] As a further implementation of this scheme, the number of first thin teeth 4 is several, the first thin teeth 4 are spirally fixed to the inner side of the copper tube body 1, and a spiral flow channel 5 is arranged between the first thin teeth 4 to facilitate the normal flow of airflow, so that the airflow contacts the first thin teeth 4 and the second thin teeth 9;

[0027] As a further implementation of the present scheme, the spiral flow channel 5 is in a spiral shape, the support rod 2 is fixed inside the spiral flow channel 5, the support rod 2 is fixed between the second thin teeth 9, the number of the second thin teeth 9 is the same as the first thin teeth 4, the spacing between the second thin teeth 9 is the same as the first thin teeth 4, the spacing between the first thin teeth 4 is aligned with the spacing between the second thin teeth 9, so as to improve the heat exchange coefficient of the device;

[0028] As a further implementation of the present invention, the shape of the second cone shell 10 is the same as that of the first cone shell 6, the diameter of the second cone shell 10 is larger than the diameter of the first cone shell 6, the outer side of the second cone shell 10 is fitted with the inner side of the first thin tooth 4, the second thin tooth 9 is inside the second cone shell 10, and the inside of the second cone shell 10 is connected to the reflux hole 11, which can improve the heat exchange performance of the device and can perform heat exchange on the refrigerant in different parts;

[0029] As a further implementation scheme of the present scheme, the inner side of the built-in heat exchange hole 12 is connected with the through-port 8, the number of the through-port 8 is several, the shape of the through-port 8 is the same as the setting of the return hole 11, the return hole 11 is connected with the inner side of the built-in heat exchange hole 12, the through-port 8 is located on the outside of the first conical shell 6, and the second conical shell 10 and the inner side of the first conical shell 6 are both provided with conical holes 7, which play the role of guiding the airflow.

[0030] Working process: When the device is in use, the airflow is heat exchanged as shown in the figure. Figure 1 The arrow enters, at this time, the airflow enters between the inner tube 3 and the copper tube body 1, and enters the inner tube 3 at the same time. The airflow entering the inner tube 3 blows toward the first cone shell 6. According to the shape of the first cone shell 6, most of the airflow flows into the position between the copper tube body 1 and the inner tube 3 from the through port 8, and part of the airflow flows out from the inside of the cone hole 7, which can reduce wind resistance. When entering the position between the copper tube body 1 and the inner tube 3 from the through port 8, the airflow flows according to the direction of the spiral flow channel 5 set between the first thin tooth 4 and the second thin tooth 9. The second thin tooth 9 and the first thin tooth 4 can improve the heat exchange coefficient of the device without hindering the normal circulation of the airflow. The inner tube 3 and the copper tube body 1 are fixed by the support rod 2. The support rod 2 can improve the stability of the inner tube 3. At the same time, the airflow flows between the support rods 2, and the support rods 2 do not hinder the normal circulation of the airflow. When the airflow enters the second cone shell 10, according to the shape of the second cone shell 10, the second cone shell 10 guides most of the airflow and enters the inner tube 3 again from the reflux hole 11, which can improve the heat exchange performance of the device and can perform heat exchange on the refrigerant in different parts.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A copper tube with an extra-large helical angle and thin teeth with internal threads, comprising a copper tube body (1) and a support rod (2), characterized in that: The inner side of the copper tube body (1) is fixedly connected to a support rod (2), one side of the support rod (2) is fixedly connected to an inner tube (3), the inner side of the copper tube body (1) is fixedly connected to a first thin tooth (4), the inner side of the copper tube body (1) is provided with a spiral flow channel (5), the inner side of the inner tube (3) is provided with a built-in heat exchange hole (12), the inner side of the built-in heat exchange hole (12) is fixedly connected to a first cone shell (6), the inner side of the first cone shell (6) is provided with a cone hole (7), the inner side of the inner tube (3) is provided with a through opening (8), the outer side of the inner tube (3) is fixedly connected to a second thin tooth (9), the outer side of the inner tube (3) is fixedly connected to a second cone shell (10), and the inner side of the inner tube (3) is provided with a return hole (11).

2. The ultra-large helical angle thin-tooth internally threaded copper tube according to claim 1, characterized in that: The inner side of the copper tube body (1) is hollow, the inner side of the inner tube (3) is hollow, and the diameter of the copper tube body (1) is three times the diameter of the inner tube (3).

3. The ultra-large helical angle thin-tooth internally threaded copper tube according to claim 1, characterized in that: There are a plurality of support rods (2), spaces are provided between the support rods (2), and the support rods (2) are symmetrically fixedly connected to the upper end and the lower end of the inner tube (3).

4. The ultra-large helical angle thin-tooth internally threaded copper tube according to claim 1, characterized in that: The number of the first thin teeth (4) is several, and the first thin teeth (4) are spirally fixed on the inner side of the copper tube body (1), and spiral flow channels (5) are arranged between the first thin teeth (4).

5. The ultra-large helical angle thin-tooth internally threaded copper tube according to claim 1, characterized in that: The spiral flow channel (5) is in the shape of a spiral, the support rod (2) is fixed inside the spiral flow channel (5), the support rod (2) is fixed between the second thin teeth (9), the number of the second thin teeth (9) is the same as the first thin teeth (4), the spacing between the second thin teeth (9) is the same as the first thin teeth (4), and the spacing between the first thin teeth (4) is aligned with the spacing between the second thin teeth (9).

6. The ultra-large helical angle thin-tooth internally threaded copper tube according to claim 1, characterized in that: The shape of the second cone shell (10) is the same as that of the first cone shell (6); the diameter of the second cone shell (10) is larger than the diameter of the first cone shell (6); the outer side of the second cone shell (10) is in contact with the inner side of the first thin tooth (4); the second thin tooth (9) is located inside the second cone shell (10); and the interior of the second cone shell (10) is connected to the reflux hole (11).

7. The ultra-large helical angle thin-tooth internally threaded copper tube according to claim 1, characterized in that: The inner side of the built-in heat exchange hole (12) is connected to the through-port (8), the number of the through-ports (8) is multiple, the shape of the through-port (8) is the same as that of the return hole (11), the return hole (11) is connected to the inner side of the built-in heat exchange hole (12), the through-port (8) is located on the outer side of the first cone shell (6), and the inner sides of the second cone shell (10) and the first cone shell (6) are both provided with cone holes (7).

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