Novel tooth-shaped structure heat exchange tube

Abstract

The utility model discloses a novel tooth-shaped structure heat exchange tube which comprises a tube body, U-shaped grooves are formed in the outer wall of the tube body, the U-shaped grooves are evenly arranged in the axial direction of the tube body, a plurality of U-shaped grooves are arranged in parallel, a protrusion is formed between every two adjacent U-shaped grooves, inclined planes are formed between the U-shaped grooves and the protrusions, a plurality of U-shaped grooves are formed in the outer wall of the tube body, and the U-shaped grooves are evenly arranged in the axial direction of the tube body. Condensed liquid falls into the U-shaped groove and falls along the U-shaped groove, the condensed liquid is prevented from being attached to the outer wall of the pipe body, the heat exchange effect of gas on the outer side and liquid on the inner side of the heat exchange pipe is improved, meanwhile, the inclined face is formed between the U-shaped groove and the protrusion, on one hand, the heat exchange area can be increased through the inclined face, and the heat exchange effect is further improved; and on the other hand, the condensed liquid is guided through the inclined surface, so that the condensed liquid conveniently falls into the U-shaped groove.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heat exchange pipe technical field especially relates to a novel tooth shape structure heat exchange pipe. BACKGROUND

[0002] The heat exchange pipe wall is one of the elements of the heat exchanger, and is mainly used for heat exchange between two media. The materials commonly used include carbon steel, low alloy steel, stainless steel, copper, copper-nickel alloy, aluminum alloy, titanium, etc. The heat exchange pipe wall is widely used in the fields of chemical industry, petroleum, power, shipbuilding, machinery, etc. The heat exchange pipe wall is commonly used in equipment such as reaction kettle and evaporator.

[0003] At present, with the increasing requirements of equipment on the heat exchange properties, the requirements on the heat exchange pipe are also increasing, especially in the process of heat exchange between the liquid in the heat exchange pipe and the gas outside the heat exchange pipe. The condensed and liquefied gas outside the heat exchange pipe will adhere to the outer wall of the heat exchange pipe, which affects the heat exchange effect of the heat exchange pipe. In order to ensure the heat exchange effect, the wall thickness of the heat exchange pipe is becoming thinner and thinner. However, after the wall thickness of the heat exchange pipe is reduced, the structural strength of the heat exchange pipe is also reduced. In addition, the pipe body is easily deformed due to the influence of cold and hot changes, which is not conducive to the long-term use of the heat exchange pipe. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the above technical problems in the prior art, and provides a novel tooth shape structure heat exchange pipe. A plurality of U-shaped grooves are arranged on the outer wall of the pipe body. The condensed liquid falls into the U-shaped grooves and falls along the U-shaped grooves, so as to avoid the adhesion of the condensed liquid to the outer wall of the pipe body, thereby increasing the heat exchange effect of the gas outside the heat exchange pipe and the liquid inside the heat exchange pipe. At the same time, an inclined surface is formed between the U-shaped groove and the protrusion. On the one hand, the arrangement of the inclined surface can increase the heat exchange area, thereby further increasing the heat exchange effect. On the other hand, the condensed liquid is guided by the inclined surface, so as to fall into the U-shaped groove.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A novel tooth shape structure heat exchange pipe, comprising a pipe body;

[0007] Its characterized in that: the outer wall of the pipe body is equipped with U-shaped groove, U-shaped groove is evenly arranged along the pipe body axial, U-shaped groove is equipped with a plurality of, a plurality of U-shaped groove parallel arrangement, two adjacent U-shaped groove between form protrusion, U-shaped groove and protrusion between form inclined surface, a plurality of U-shaped groove is arranged on the outer wall of the pipe body, the condensed liquid falls into the U-shaped groove, along the U-shaped groove falls, avoid the condensed liquid to adhere on the outer wall of the pipe body, thereby increase the heat exchange effect of the gas outside the heat exchange tube and the liquid inside, simultaneously form inclined surface between U-shaped groove and protrusion, on the one hand, through the setting of the inclined surface can increase the heat exchange area, thereby further increase the heat exchange effect, on the other hand, through the inclined surface to the condensed liquid for guiding, facilitate the condensed liquid to fall into the U-shaped groove.

[0008] Further, the bottom of the U-shaped groove is provided with an arc guide surface, the cross section of the U-shaped groove and the protrusion is trapezoidal, the inclined surface is connected with the bottom of the U-shaped groove when passing through the arc guide surface, facilitating the condensed liquid falling along the inclined surface to fall into the U-shaped groove.

[0009] Further, the length of the bottom of the U-shaped groove is 0.4-0.5 mm.

[0010] Further, the depth of the U-shaped groove is 0.4-0.5 mm.

[0011] Further, the length of the top of the protrusion is 0.2-0.3 mm.

[0012] Further, the inclination angle of the inclined surface is 100°.

[0013] Further, the inner wall of the pipe body is provided with a flow-through groove, the flow-through groove is spirally arranged along the axial direction of the pipe body, the flow-through groove increases the heat exchange area of the pipe body, thereby increasing the heat exchange effect, and the spiral arrangement of the flow-through groove enhances the turbulent flow of the liquid in the pipe body.

[0014] Further, the slotting depth of the flow-through groove is 0.2-0.3 mm.

[0015] The utility model discloses a heat exchange pipe, which comprises a pipe body, wherein the outer wall of the pipe body is provided with a plurality of U-shaped grooves.

[0016] The utility model discloses a heat exchange pipe, which comprises a pipe body, wherein the outer wall of the pipe body is provided with a plurality of U-shaped grooves.

[0017] The utility model discloses a pipe body inner wall is equipped with the flow channel, and the flow channel is along the axial spiral of pipe body setting, and the heat exchange area of pipe body is increased through being equipped with the flow channel to increase the heat exchange effect, and the spiral setting of flow channel enhances the turbulence of liquid flow in pipe body. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further explained in connection with the drawings:

[0019] Figure 1 It is the structure diagram of a novel tooth profile structure heat exchange pipe of the utility model;

[0020] Figure 2 It is the utility model Figure 1 The sectional view of A-A direction in the utility model;

[0021] Figure 3 It is the utility model Figure 2 The partial close-up of B in the utility model.

[0022] In the drawing: 1-pipe body; 2-U groove; 3-protrusion; 4-arc guide surface; 5-inclined surface; 6-flow channel. DETAILED DESCRIPTION

[0023] As Figures 1 to 3 Shown, it is a novel tooth profile structure heat exchange pipe of the utility model, including pipe body 1, and the outer wall of pipe body 1 is equipped with U groove 2, and the inner wall of pipe body 1 is equipped with flow channel 6, and U groove 2 is evenly set along the axial direction of pipe body 1, U groove 2 is equipped with multiple, and multiple U grooves 2 are parallelly arranged, the length L1 of the bottom of U groove 2 is 0.4~0.5mm, the depth H1 of U groove 2 is 0.4~0.5mm, and multiple U grooves 2 are arranged on the outer wall of pipe body 1, and the condensed liquid falls into U groove 2 and falls along U groove 2, to avoid the condensed liquid from adhering to the outer wall of pipe body 1, to increase the heat exchange effect of the gas outside heat exchange pipe and the liquid inside, and the heat exchange area of the inner wall of pipe body 1 is increased by being equipped with flow channel 6, to further increase the heat exchange effect, and the spiral setting of flow channel 6 enhances the turbulence of liquid flow in pipe body 1, and the slotting depth H2 of flow channel 6 is 0.2~0.3mm.

[0024] The protrusion 3 is formed between two adjacent U grooves 2, the top length L2 of protrusion 3 is 0.2~0.3mm, the inclined surface 5 is formed between U groove 2 and protrusion 3, the inclination angle α of inclined surface 5 is 100 °, the inclined surface 5 is formed between U groove 2 and protrusion 3, on the one hand, the heat exchange area can be increased by the setting of inclined surface 5, to further increase the heat exchange effect, and on the other hand, the condensed liquid is guided by inclined surface 5, to facilitate the condensed liquid to fall into U groove 2.

[0025] The bottom of the U-shaped groove 2 is provided with an arc-shaped guide surface 4. The cross-section of the U-shaped groove 2 and the protrusion 3 is trapezoidal. When passing through the arc-shaped guide surface 4, the inclined surface 5 is connected to the bottom of the U-shaped groove 2, which facilitates the guidance of the condensed liquid falling along the inclined surface 5 into the U-shaped groove 2.

[0026] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A novel toothed heat exchange tube, comprising a tube body; Its features are: The outer wall of the tube is provided with a U-shaped groove, which is uniformly arranged along the axial direction of the tube. There are multiple U-shaped grooves, which are arranged in parallel. A protrusion is formed between two adjacent U-shaped grooves, and an inclined surface is formed between the U-shaped groove and the protrusion.

2. The novel toothed heat exchange tube according to claim 1, characterized in that: The bottom of the U-shaped groove is provided with an arc-shaped guide surface, and the cross-section of the U-shaped groove and the protrusion is trapezoidal.

3. The novel toothed heat exchange tube according to claim 1, characterized in that: The bottom length of the U-shaped groove is 0.4 to 0.5 mm.

4. The novel toothed heat exchanger tube according to claim 1, characterized in that: The depth of the U-shaped groove is 0.4 to 0.5 mm.

5. A novel toothed heat exchanger tube according to claim 1, characterized in that: The top length of the protrusion is 0.2 to 0.3 mm.

6. A novel toothed heat exchange tube according to claim 1, characterized in that: The tilt angle of the inclined surface is 100°.

7. A novel toothed heat exchange tube according to claim 1, characterized in that: The inner wall of the tube is provided with a flow groove, which is spirally arranged along the axial direction of the tube.

8. A novel toothed heat exchanger tube according to claim 7, characterized in that: The groove depth of the flow channel is 0.2 to 0.3 mm.

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