Heat exchange tube convenient to splice

Abstract

The utility model relates to the field of heat exchange tubes, in particular to a heat exchange tube convenient to splice, which is characterized in that a lining copper tube is mounted in a splicing cylinder, two ends of the lining copper tube extend out of two sides of the outer part of the splicing cylinder and are horn-shaped, and a convex ring is arranged at the opening end of the lining copper tube; and rotating sleeves are rotationally installed at the two ends of the outer side of the splicing cylinder through bearing pieces and are in threaded connection with a first connecting pipe and a second connecting pipe correspondingly, and the first connecting pipe and the second connecting pipe are installed on the outer side of the lining copper pipe in an extruding and sleeving mode. According to the utility model, the lining copper pipe with two flared ends is respectively inserted and butted with the connecting pipe I and the connecting pipe II through the splicing cylinder, and the convex ring arranged at the end of the lining copper pipe is matched and clamped with the annular groove formed in the inner wall of the connecting pipe after the lining copper pipe is completely inserted, so that the sealing ferrule and the pipe wall are extruded and sealed; and meanwhile, the rotary sleeve is rotated to lock and firmly connect the two parts in a threaded connection mode, the splicing process is convenient, and the sealing performance can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchange tube technical field especially relates to a heat exchange tube convenient to splice. BACKGROUND

[0002] The heat exchange tube is arranged in the cylinder of the heat exchanger and is mainly used for heat exchange between two media. It has high thermal conductivity and good isothermality and can quickly and efficiently transmit heat energy from one point to another. Common materials of the heat exchange tube include carbon steel, low alloy steel, stainless steel, copper, copper-nickel alloy, aluminum alloy, titanium and other metal materials, as well as graphite, ceramic and polytetrafluoroethylene non-metallic materials.

[0003] Splicing of the heat exchange tube is an important link in the manufacturing process of the heat exchanger. When the length of the heat exchange tube is relatively long, the existing aluminum pipe is connected by welding. This connection method is simple to operate, but it is relatively complicated in the actual disassembly and assembly process, especially in the maintenance and replacement process of the heat exchange tube. Therefore, a heat exchange tube convenient to splice is urgently needed. UTILITY MODEL CONTENT

[0004] The utility model provides a heat exchange tube convenient to splice to solve the shortcoming in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A heat exchange tube convenient to splice, comprising a connecting pipe one, a connecting pipe two and a splicing cylinder, the inside of the splicing cylinder is internally lined with a copper pipe, the two ends of the copper pipe extend outside the two sides of the splicing cylinder and are in the shape of a flared mouth, the open end of the copper pipe is provided with a convex ring, the outside of the two ends of the splicing cylinder is rotatably installed with a rotating sleeve through a bearing, the rotating sleeve is screwed with the connecting pipe one and the connecting pipe two respectively, and the connecting pipe one and the connecting pipe two are extruded and installed outside the copper pipe.

[0007] In addition, preferably, the outer wall of the connecting pipe one and the connecting pipe two is provided with a thread.

[0008] In addition, preferably, the inner wall of the connecting pipe one and the connecting pipe two is provided with an annular groove on one side, and when the connecting pipe one and the connecting pipe two are connected with the copper pipe, the convex ring is limitingly fitted and clamped in the annular groove.

[0009] In addition, preferably, the outer wall of the two sides of the copper pipe is provided with a sealing sleeve ring, and when the copper pipe is connected with the connecting pipe one and the connecting pipe two, the sealing sleeve ring is extruded and contacted with the inner wall of the connecting pipe one and the connecting pipe two.

[0010] In addition, preferably, a gap is left between the inner wall of the rotating sleeve and the outer wall of the sealing ring for inserting the first connecting pipe and the second connecting pipe.

[0011] In addition, preferably, a sealing ring is arranged on one side of the inner wall of the rotating sleeve.

[0012] In addition, preferably, a threaded wall is arranged on one side of the inner wall of the rotating sleeve.

[0013] The heat exchange pipe provided by the present application has the following beneficial effects:

[0014] In the present application, the inner lining copper pipe with a trumpet-shaped end is inserted into the first connecting pipe and the second connecting pipe through the splicing sleeve, and the convex ring arranged at the end of the inner lining copper pipe is engaged with the annular groove arranged on the inner wall of the connecting pipe after complete insertion, so that the sealing ring is pressed and sealed with the pipe wall, and the rotating sleeve is rotated to lock and connect the two through threaded connection, so that the splicing process is convenient and the sealing performance is guaranteed, and the disassembly and assembly efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A splicing structure diagram of a heat exchange pipe convenient to splice is provided in the present application;

[0016] Figure 2 An external structure diagram of a splicing sleeve is provided in the present application;

[0017] Figure 3 An external structure diagram of an inner lining copper pipe is provided in the present application;

[0018] Figure 4 An external structure diagram of a rotating sleeve is provided in the present application;

[0019] Figure 5 An internal connection structure diagram of a rotating sleeve is provided in the present application;

[0020] Figure 6 An A structure diagram is provided in the present application.

[0021] In the drawings: 1, first connecting pipe; 2, second connecting pipe; 3, splicing sleeve; 4, rotating sleeve; 41, threaded wall; 5, bearing part; 6, sealing ring; 7, convex ring; 8, inner lining copper pipe; 9, sealing ring; 10, annular groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0023] Reference Figures 1-6 The heat exchange pipe is convenient to splice, comprising a first connecting pipe 1, a second connecting pipe 2 and a splicing barrel 3, wherein the inside of the splicing barrel 3 is provided with a copper lining pipe 8, the two ends of the copper lining pipe 8 extend out of the two sides of the outside of the splicing barrel 3 and are in the shape of a flared opening, the opening end of the copper lining pipe 8 is provided with a convex ring 7, the outside of the two ends of the splicing barrel 3 is rotatably provided with a rotating sleeve 4 through a bearing 5, the rotating sleeve 4 is screwed with the first connecting pipe 1 and the second connecting pipe 2 respectively, and the first connecting pipe 1 and the second connecting pipe 2 are extrudedly sleeved and installed on the outside of the copper lining pipe 8.

[0024] Further, the outer wall of the first connecting pipe 1 and the second connecting pipe 2 is provided with a thread, which can be screwed with the thread wall 41 provided on the inner wall of the rotating sleeve 4.

[0025] Further, the inner wall of the first connecting pipe 1 and the second connecting pipe 2 is provided with an annular groove 10 on one side, and when the first connecting pipe 1 and the second connecting pipe 2 are connected with the copper lining pipe 8, the convex ring 7 is limitingly fitted and clamped in the annular groove 10, so as to ensure the stability of the connection through clamping.

[0026] Further, the outer wall of the two sides of the copper lining pipe 8 is sleeved and installed with a sealing sleeve ring 6, and when the copper lining pipe 8 is connected with the first connecting pipe 1 and the second connecting pipe 2, the sealing sleeve ring 6 is extrudedly contacted with the inner wall of the first connecting pipe 1 and the second connecting pipe 2.

[0027] Further, a gap is left between the inner wall of the rotating sleeve 4 and the outer wall of the sealing sleeve ring 6 to insert and install the first connecting pipe 1 and the second connecting pipe 2.

[0028] Further, the inner wall of the rotating sleeve 4 is provided with a sealing ring 9 on one side, which ensures the basic sealing performance.

[0029] Further, the inner wall of the rotating sleeve 4 is provided with a thread wall 41 on one side.

[0030] In this embodiment, the copper lining pipe 8 is aligned and inserted into the pipe opening of the first connecting pipe 1, and since the end of the copper lining pipe 8 is in the shape of a flared opening and cooperates with the sealing sleeve ring 6 sleeved on the pipe wall, the connection stability and sealing performance can be effectively improved during the insertion process, and the inner wall of the first connecting pipe 1 is provided with a corresponding annular groove 10 to fit the convex ring 7 provided at the end of the copper lining pipe 8, and the two are clamped and fitted with each other to improve the connection stability.

[0031] At the same time, the first connecting pipe 1 is inserted into the insertion gap between the splicing barrel 3 and the copper lining pipe 8, the rotating sleeve 4 is rotated through the bearing 5, and the threads are rotated to connect the rotating sleeve 4 with the threads provided on the outer wall of the first connecting pipe 1, thereby completing the locking connection function of the first connecting pipe 1.

[0032] Similarly, according to the above steps and connecting pipe two 2 are connected to communicate connecting pipe one 1, connecting pipe two 2.

[0033] Wherein, in actual use, the inner wall of the rotating sleeve 4 is provided with a sealing ring 9 to ensure sealing performance.

[0034] In the utility model, the inner lining copper pipe 8 with two ends being trumpet mouth is respectively inserted butt joint with connecting pipe one 1 and connecting pipe two 2 through splicing barrel 3, and the convex ring 7 set at the end of the inner lining copper pipe 8 is engaged and clamped with the annular groove 10 set in the inner wall of the connecting pipe after being completely inserted, and the sealing collar 6 is extruded and sealed with the pipe wall, and at the same time, the rotating sleeve 4 is rotated to lock and connect the two through the threaded connection, and the splicing process is convenient and can ensure sealing performance, and the disassembly and assembly efficiency is effectively improved.

[0035] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change are covered in the protection scope of the utility model.

Claims

1. A heat exchange pipe for facilitating splicing, comprising a first connecting pipe (1), a second connecting pipe (2), and a splicing barrel (3), characterized in that, The inside of the splicing barrel (3) is internally provided with a copper lining pipe (8), both ends of the copper lining pipe (8) extend outside both sides of the splicing barrel (3) and are trumpet-shaped, the opening end of the copper lining pipe (8) is provided with a convex ring (7), and both ends of the outside of the splicing barrel (3) are rotatably provided with a rotating sleeve (4) through a bearing (5), the rotating sleeve (4) is respectively screwed with a connecting pipe one (1) and a connecting pipe two (2), and the connecting pipe one (1) and the connecting pipe two (2) are extrudedly sleeved and installed outside the copper lining pipe (8).

2. The heat exchange tube according to claim 1, wherein The outer wall of the connecting pipe one (1) and the connecting pipe two (2) is provided with a thread.

3. The heat exchange tube according to claim 1, wherein The inner wall of the connecting pipe one (1) and the connecting pipe two (2) is provided with an annular groove (10) on one side, and when the connecting pipe one (1) and the connecting pipe two (2) are connected with the copper lining pipe (8), the convex ring (7) is limitingly fitted and connected in the annular groove (10).

4. The heat exchange tube according to claim 1, wherein The outer wall of both sides of the copper lining pipe (8) is sleeved and installed with a sealing sleeve ring (6), and when the copper lining pipe (8) is connected with the connecting pipe one (1) and the connecting pipe two (2), the sealing sleeve ring (6) is extrudedly contacted with the inner wall of the connecting pipe one (1) and the connecting pipe two (2).

5. The heat exchange tube according to claim 1, wherein The inner wall of the rotating sleeve (4) and the outer wall of the sealing sleeve ring (6) are left with a gap to insert and install the connecting pipe one (1) and the connecting pipe two (2).

6. The heat exchange tube according to claim 1, wherein The inner wall of the rotating sleeve (4) is provided with a sealing ring (9) on one side.

7. The heat exchange tube according to claim 1, wherein The inner wall of the rotating sleeve (4) is provided with a threaded wall (41) on one side.

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