Efficient finned tube

Abstract

The utility model discloses a condensation dual-purpose efficient finned tube which comprises a copper tube and a flow guide tube, internal threads are arranged on the inner wall of the copper tube, outer fins are arranged on the outer wall of the copper tube, the flow guide tube is arranged in the copper tube and attached to the inner wall of the copper tube, a flow guide channel is formed in the flow guide tube, and the outer fins are arranged in the flow guide channel. The inner diameter of the flow guide channel is gradually reduced in the flowing direction of a working medium in the copper pipe. And the working medium flowing along the wall surface of the threaded groove in the copper pipe flows into the flow guide channel under the action of the flow guide pipe and is mixed with the working medium flowing in the middle of the copper pipe, so that the heat exchange efficiency of the working medium and the copper pipe is improved.

Description

Technical Field

[0001] The present application relates to the field of heat exchange technology, and in particular to a high-efficiency finned tube. Background Art

[0002] Currently, the most common air-conditioning condenser (heat exchanger) is a tube-fin condenser, which includes a condenser tube and several heat sinks. The condenser tube is made of a heat-transfer copper tube. The condenser tube is inserted into the connection hole of the heat sink and connected to the heat sink. In order to improve the heat exchange efficiency of the refrigerant, the condenser tube usually adopts an internal threaded copper tube.

[0003] When the working fluid flows in the internally threaded copper tube, the working fluid is rotated by the action of the internal thread, and the water flow is affected by the rotational force and flows close to the wall of the internal thread groove, ensuring that there is continuous working fluid on the inner wall of the copper tube for heat exchange. The working fluid flowing along the wall of the internal thread groove of the copper tube is in direct contact with the copper tube for heat exchange, and the working fluid flowing in the middle of the copper tube indirectly exchanges heat with the copper tube through the working fluid flowing on the inner wall of the copper tube, which affects the heat exchange efficiency. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a high-efficiency finned tube, the technical solution of which is as follows:

[0005] A high-efficiency finned tube comprises a copper tube and a guide tube. The inner wall of the copper tube is provided with an internal thread, and the outer wall thereof is provided with an external fin. The guide tube is arranged inside the copper tube and fits with the inner wall of the copper tube. The guide tube is provided with a guide channel, and the inner diameter of the guide channel gradually decreases along the flow direction of the working medium in the copper tube.

[0006] An embodiment of the present invention adopts a technical solution to solve its technical problem: the guide tube is a frustum-shaped tube body, the conical bottom end of the guide tube is in contact with the inner wall of the copper tube and is open, and the conical top end of the guide tube is provided with a through hole for the flow of the working medium.

[0007] An embodiment of the present invention adopts a technical solution to solve its technical problem: the conical bottom end of the guide tube is connected to one end of the mounting tube, the mounting tube extends in a direction away from the guide tube, and the outer wall of the mounting tube is provided with an external thread matching the internal thread, and the mounting tube is mounted on the inner wall of the copper tube through the external thread.

[0008] An embodiment of the present invention solves the technical problem by adopting the following technical solution: the conical top of the guide tube is sealed, the through hole is arranged in a section of the side wall of the guide tube close to the conical top, and a screwdriver hole is provided at the conical top of the inner wall of the guide tube.

[0009] An embodiment of the present invention solves the technical problem by adopting a technical solution as follows: the guide tube and the mounting plate are both made of metal copper.

[0010] An embodiment of the present invention adopts a technical solution to solve the technical problem as follows: a plurality of flow guide tubes are provided in the copper tube, and the plurality of flow guide tubes are spaced apart in the copper tube along the axial direction thereof.

[0011] Beneficial effects of the utility model:

[0012] In the present application, a guide tube is provided in the copper tube in the high-efficiency fin tube. The working medium flowing along the wall of the inner thread groove of the copper tube flows into the guide channel under the action of the guide tube and mixes with the working medium flowing in the middle of the copper tube, which is beneficial to improving the heat exchange efficiency between the working medium and the copper tube.

[0013] The guide tube is installed on the inner wall of the copper tube through the installation tube thread. Any number of the guide tubes can be screwed into any position in the copper tube according to needs to mix the working medium flowing in the copper tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic structural diagram of the high-efficiency finned tube described in this application;

[0016] Figure 2 This is a schematic structural diagram of the flow guide tube described in this application. DETAILED DESCRIPTION

[0017] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0018] In the description of this utility model, "above," "below," and "within" are understood to be exclusive of the number indicated, while "above," "below," and "within" are understood to be inclusive of the number indicated. If used, "below" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or implicitly specifying the number or order of the indicated technical features.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0020] In this utility model, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection; internal communication between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of these terms in this utility model based on the specific content of the technical solution.

[0021] Reference Figures 1 to 2 , an embodiment of the present application is proposed, in which the high-efficiency finned tube described in this embodiment includes a copper tube 1 and a guide tube 2, the inner wall of the copper tube 1 is provided with an internal thread 11, and the outer wall thereof is provided with an external fin 12, the guide tube 2 is arranged in the copper tube 1 and fits with the inner wall of the copper tube 1, and the guide tube 2 is provided with a guide channel 21, the inner diameter of the guide channel 21 gradually decreases along the flow direction of the working medium in the copper tube 1.

[0022] When the working medium flows in the copper tube 1, the working medium flowing along the groove wall of the internal thread 11 of the copper tube 1 flows to the guide tube 2, and then the working medium flowing along the groove wall of the internal thread 11 of the copper tube 1 flows into the guide channel 21 under the action of the guide tube 2. Since the inner diameter of the guide channel 21 gradually decreases along the flow direction of the working medium in the copper tube 1, the working medium flowing along the groove wall of the internal thread 11 of the copper tube 1 enters the guide channel 21 and mixes with the working medium flowing in the middle of the copper tube 1 before flowing out, so that the working medium in the copper tube 2 is fully mixed, which is conducive to improving the heat exchange efficiency and performing efficient heat exchange.

[0023] In this embodiment, the guide tube 2 is a frustum-shaped tube body, the cone bottom end of the guide tube 2 is in contact with the inner wall of the copper tube 1 and is open, and the cone top end of the guide tube 2 is provided with a through hole 22 for the flow of the working medium.

[0024] In this embodiment, the conical bottom end of the guide tube 2 is connected to one end of the mounting tube 3, the mounting tube 3 extends in a direction away from the guide tube 2, and the outer wall of the mounting tube 3 is provided with an external thread 23 matching the internal thread 11, and the mounting tube 3 is installed on the inner wall of the copper tube 1 through the external thread 23.

[0025] The installation tube 3 and the flow guide tube 2 are both made of metal copper to prevent the installation tube 3 and the flow guide tube 2 from affecting the heat exchange between the working medium and the copper tube 1.

[0026] The guide tube 2 is threadedly mounted on the inner wall of the copper tube 1 through the mounting tube 3. After the mounting tube 3 is inserted into the guide tube 2, the guide tube 2 can be installed at different positions in the copper tube 1, which is convenient for installation.

[0027] One, two or more guide tubes 2 can be set in the copper tube 1, and the number of guide tubes 2 can be set according to the usage and the length of the copper tube 1 to achieve sufficient mixing of the working medium in the copper tube 1; when multiple guide tubes 2 are set in the copper tube 1, the distance between two adjacent guide tubes 2 can be adjusted by threading the mounting tube 3 on the inner wall of the copper tube 1.

[0028] Furthermore, in this embodiment, the conical top of the guide tube 2 is sealed, the through hole 22 is provided in a section of the side wall of the guide tube 2 near the conical top, and a screwdriver hole 4 is provided at the conical top of the inner wall of the guide tube 2. The screwdriver hole 4 can be a slotted screwdriver hole, a cross screwdriver hole, a plum blossom screwdriver hole, or the like.

[0029] In order to facilitate the installation of the guide tube 2 on the inner wall of the copper tube 1 , a screwdriver is inserted into the screwdriver hole 4 and the guide tube 2 and the installation tube 3 are rotated to adjust the position of the guide tube 2 .

[0030] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A high-efficiency finned tube, characterized in that: The invention comprises a copper tube (1) and a flow guide tube (2); the inner wall of the copper tube (1) is provided with an internal thread (11), and the outer wall thereof is provided with an external fin (12); the flow guide tube (2) is arranged in the copper tube (1) and is in contact with the inner wall of the copper tube (1); the flow guide tube (2) is provided with a flow guide channel (21); the inner diameter of the flow guide channel (21) gradually decreases along the flow direction of the working medium in the copper tube (1).

2. The high-efficiency finned tube according to claim 1, characterized in that: The flow guide tube (2) is a frustum-shaped tube body, the conical bottom end of the flow guide tube (2) is in contact with the inner wall of the copper tube (1) and is open, and the conical top end of the flow guide tube (2) is provided with a through hole (22) for the flow of working fluid.

3. The high-efficiency finned tube according to claim 2, characterized in that: The conical bottom end of the guide tube (2) is connected to one end of the mounting tube (3), the mounting tube (3) extends in a direction away from the guide tube (2), and the outer wall of the mounting tube (3) is provided with an external thread (23) matching the internal thread (11), and the mounting tube (3) is mounted on the inner wall of the copper tube (1) via the external thread (23).

4. The high-efficiency finned tube according to claim 3, characterized in that: The conical top end of the guide tube (2) is sealed, the through hole (22) is provided on a section of the side wall of the guide tube (2) close to the conical top end, and a screwdriver hole (4) is provided at the conical top end of the inner wall of the guide tube (2).

5. The high-efficiency finned tube according to claim 3, characterized in that: The flow guide tube (2) and the mounting plate are both made of metal copper.

6. The high-efficiency finned tube according to any one of claims 1 to 5, characterized in that: A plurality of the flow guide tubes (2) are provided in the copper tube (1), and the plurality of the flow guide tubes (2) are distributed in the copper tube (1) at intervals along its axial direction.

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