Lightweight thin-wall water tank pipe for engineering machinery

Abstract

The utility model provides a light-weight thin-wall water tank pipe for engineering machinery, which relates to the technical field of heat exchangers and comprises a water tank pipe body, a plurality of heat exchange fins are fixed on the front side and the rear side of the water tank pipe body, connecting components are connected among the heat exchange fins, and each heat exchange fin comprises a connecting portion, a turbulent flow portion and a flow guide portion which are integrally formed. The connecting part is horizontally attached to the outer wall of the water tank pipe body, the turbulent flow part is connected between the connecting part and the flow guide part, a heat exchange channel is formed between the turbulent flow part and the water tank pipe body and between the flow guide part and the water tank pipe body, a plurality of flow guide holes are formed in the flow guide part, and the sides, away from airflow, of the flow guide holes are bent to form inclined flow guide pieces. By arranging the inclined flow deflectors, air flow in the heat exchange channel can form turbulent flow, the heat exchange efficiency of the air flow and the water tank pipe body is improved, and heat exchange balance inside and outside the water tank pipe body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a lightweight thin-wall water tank pipe for engineering machinery. Background Art

[0002] The parallel flow aluminum flat tube is a thin-walled deformed tubular material, which is mainly used to make heat exchange tubes of various heat exchangers. Compared with traditional parallel flow aluminum flat tubes, the inner wall of traditional heat exchange copper tubes has a larger heat exchange area, so the heat exchange efficiency is higher. In the engineering machinery water tank heat exchanger, the high-temperature water in the water tank flows vertically through the inside of the parallel flow aluminum flat tube and exchanges heat with the side wall of the parallel flow aluminum flat tube. When the water temperature and flow rate in the water tank remain unchanged, the air flow on the outside of the parallel flow aluminum flat tube is required to fully exchange heat and take away the heat. However, the heat exchange efficiency between the parallel flow aluminum flat tube and the air flow is insufficient, so it is necessary to set heat exchange fins on the outside of the parallel flow aluminum flat tube. Usually, the heat exchange fins are fixed to the heat exchange tube by welding, but the parallel flow aluminum flat tube is a thin-walled tubular material, and it is easy to be perforated during welding. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a lightweight thin-wall water tank pipe for engineering machinery, which solves the problems raised in the above-mentioned background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A lightweight thin-walled water tank pipe for engineering machinery comprises a water tank pipe body, a plurality of heat exchange fins are fixed on the front and rear sides of the water tank pipe body, a connecting assembly is connected between the plurality of heat exchange fins, the heat exchange fins comprise an integrally formed connecting portion, a spoiler portion and a guide portion, the connecting portion is horizontally attached to the outer wall of the water tank pipe body, the spoiler portion is connected between the connecting portion and the guide portion, a heat exchange channel is formed between the spoiler portion and the guide portion and the water tank pipe body, a plurality of guide holes are opened on the guide portion, and an inclined guide plate is bent on the side of the guide hole away from the airflow.

[0008] Preferably, the cross-section of the inclined guide plate is S-shaped, the upper end of the inclined guide plate protrudes from the upper edge of the guide part, and the lower end protrudes downward from the lower edge of the guide part and extends into the heat exchange channel.

[0009] Preferably, the inner wall of the spoiler is configured to be corrugated.

[0010] Preferably, the connecting assembly includes a plurality of connecting plates connected end to end, the connecting plates include an integrally formed docking plate and a set plate extending from the docking plate to both sides, the set plate is concavely and convexly fitted to abut against the side wall of the water tank pipe body, one end of the docking plate is provided with a docking protrusion, and the other end is provided with a docking groove, the docking protrusion is concavely and convexly fitted with the docking groove, and the end of the set plate is connected to the end of the connecting part by bolts.

[0011] Preferably, a plurality of positioning tooth grooves are provided at both ends of the outer wall of the water tank pipe body, and the inner wall of the docking piece is provided with positioning teeth, and the positioning teeth are clamped in the positioning tooth grooves.

[0012] Preferably, fixing plates are provided at both ends of the connecting portion, fixing plates are provided at the ends of the set plates, and the fixing plates of two adjacent heat exchange fins are connected to the fixing plates by bolts.

[0013] (III) Beneficial effects

[0014] The utility model provides a lightweight thin-wall water tank pipe for engineering machinery. It has the following beneficial effects:

[0015] 1. In the utility model, the number of heat exchange fins can be selected according to the length of the water tank pipe body, and a corresponding number of connecting pieces can be selected to fix the heat exchange fins. The heat exchange fins can be assembled by the concave-convex fit of the outer wall of the water tank pipe body and the role of the positioning teeth instead of the welding fixation method, avoiding perforation during the welding process.

[0016] 2. The heat exchange fins can increase the heat exchange area between the water tank tube body and the air flow. At the same time, the inclined guide vanes can guide part of the air flow passing through the outside of the heat exchange fins into the heat exchange channel and inject it obliquely. The air flow flowing vertically through the heat exchange channel will impact to form a turbulent flow, causing the air flow to form turbulence in the heat exchange channel, so that the air flow and the heat exchange fins can fully exchange heat, thereby improving the heat exchange efficiency between the water tank tube body and the air flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a lightweight thin-walled water tank pipe for engineering machinery of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the heat exchange fins in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the connection assembly in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the connecting piece in the utility model.

[0021] In the figure: 1. Water tank pipe body; 2. Connection part; 3. Turbulence part; 4. Flow guiding part; 5. Inclined flow guiding fin; 6. Connection piece; 61. Docking piece; 62. Sleeve piece; 7. Docking bump; 8. Docking groove; 9. Positioning tooth groove; 10. Positioning tooth; 11. Fixed plate; 12. Fixed piece. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0023] The embodiment of the present utility model provides a lightweight thin-walled water tank pipe for construction machinery,

[0024] As Figure 1-4 shown, it includes a water tank pipe body 1. A plurality of heat exchange fins are fixed on the front and rear sides of the water tank pipe body 1. A connection assembly is connected between the plurality of heat exchange fins. The heat exchange fin includes an integrally formed connection part 2, a turbulence part 3 and a flow guiding part 4. The connection part 2 and the flow guiding part 4 are symmetrically connected at both ends of the flow guiding part 4 in a "Ji" shape. The connection part 2 is horizontally attached to the outer wall of the water tank pipe body 1. The turbulence part 3 is connected between the connection part 2 and the flow guiding part 4. A heat exchange channel is formed between the turbulence part 3 and the flow guiding part 4 and the water tank pipe body 1. The inner wall of the turbulence part 3 is corrugated. A plurality of flow guiding holes are formed in the flow guiding part 4. An inclined flow guiding fin 5 is bent on the side of the flow guiding hole away from the air flow. The cross section of the inclined flow guiding fin 5 is in an S shape. The upper end of the inclined flow guiding fin 5 protrudes above the upper edge of the flow guiding part 4, and the lower end protrudes downward below the lower edge of the flow guiding part 4 and extends into the heat exchange channel. The connection assembly includes a plurality of connection pieces 6 connected end to end. The connection piece 6 includes an integrally formed docking piece 61 and sleeve pieces 62 extending from the docking piece 61 to both sides. The sleeve pieces 62 are in concave-convex fit and抵触 with the side wall of the water tank pipe body 1. One end of the docking piece 61 is provided with a docking bump 7, and the other end is provided with a docking groove 8. The docking bump 7 is in concave-convex fit with the docking groove 8. The end of the sleeve piece 62 is connected to the end of the connection part 2 by bolts. A plurality of positioning tooth grooves 9 are formed at both ends of the outer wall of the water tank pipe body 1. The inner wall of the docking piece 61 is provided with positioning teeth 10. The positioning teeth 10 are clamped in the positioning tooth grooves 9. Fixed plates 11 are provided at both ends of the connection part 2. Fixed pieces 12 are provided at the ends of the sleeve pieces 62. The fixed plates 11 of adjacent two heat exchange fins are connected and fixed to the fixed pieces 12 by bolts.

[0025] Working principle:

[0026] In the utility model, the heat exchange fins are placed on the upper and lower plane outer walls of the water tank pipe body 1, fully in contact with the outer wall of the water tank pipe body 1, maintaining good heat conduction efficiency. The heat exchange fins as a whole can increase the heat exchange area of ​​the water tank pipe body 1 and improve the heat exchange efficiency with the air flow. At the same time, the air flow flows vertically through the heat exchange fins, and part of the air flow exchanges heat with the inner wall of the heat exchange fin through the heat exchange channel. In the heat exchange channel, the air flow flows through the inner wall of the spoiler 3 to form a lateral turbulence, thereby improving the heat exchange efficiency. At the same time, when the air flow flowing through the outside of the heat exchange fin exchanges heat with the outer wall of the heat exchange fin, part of the air flow passes through the guiding effect of the inclined guide plate 5, and forms a jet along the inclined direction of the inclined guide plate 5 to flow into the heat exchange channel, forming a longitudinal turbulence with the air flow flowing vertically through the heat exchange channel, further improving the heat exchange efficiency, ensuring the heat exchange efficiency of the air flow and the water tank pipe body 1, and making the heat exchange inside and outside the water tank pipe body 1 balanced.

[0027] In addition, in the utility model, the number of heat exchange fins can be selected according to the use length of the water tank pipe body 1, and the corresponding number of connecting pieces 6 can be selected to fix the heat exchange fins. The distance between the heat exchange fins can be locked by the concave-convex connection of the docking protrusions 7 and the docking grooves 8. At the same time, the connecting piece 6 is locked by the positioning teeth 10 on the connecting piece 6 to ensure that the heat exchange fins are locked on the water tank pipe body 1 as a whole, replacing the traditional welding method to avoid perforation of the water tank pipe body 1 caused by the high temperature of welding.

[0028] 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 lightweight thin-walled water tank pipe for engineering machinery, comprising a water tank pipe body, characterized in that: A plurality of heat exchange fins are fixed on the front and rear sides of the water tank pipe body, and a connecting assembly is connected between the plurality of heat exchange fins, and the heat exchange fins include an integrally formed connecting portion, a spoiler portion and a guide portion, and the connecting portion is horizontally attached to the outer wall of the water tank pipe body, the spoiler portion is connected between the connecting portion and the guide portion, and a heat exchange channel is formed between the spoiler portion and the guide portion and the water tank pipe body. A plurality of guide holes are opened on the guide portion, and an inclined guide piece is bent on the side of the guide hole away from the airflow. The connecting assembly includes a plurality of connecting pieces connected end to end, and the connecting piece includes an integrally formed docking piece and a set piece extending from the docking piece to both sides, and the set piece is concave-convexly matched to contact the side wall of the water tank pipe body, and a docking protrusion is provided at one end of the docking piece, and a docking groove is provided at the other end, and the docking protrusion is concave-convexly matched with the docking groove, and the end of the set piece is connected to the end of the connecting portion by a bolt.

2. The lightweight thin-wall water tank pipe for engineering machinery according to claim 1, characterized in that: The cross section of the inclined guide plate is S-shaped, the upper end of the inclined guide plate protrudes from the upper edge of the guide part, and the lower end protrudes downward from the lower edge of the guide part and extends into the heat exchange channel.

3. The lightweight thin-wall water tank pipe for engineering machinery according to claim 2, characterized in that: The inner wall of the spoiler is configured to be in a corrugated shape.

4. The lightweight thin-wall water tank pipe for engineering machinery according to claim 3, characterized in that: A plurality of positioning tooth grooves are provided at both ends of the outer wall of the water tank pipe body, and positioning teeth are provided on the inner wall of the docking piece, and the positioning teeth are clamped in the positioning tooth grooves.

5. The lightweight thin-wall water tank pipe for engineering machinery according to claim 4, characterized in that: Both ends of the connection portion are provided with fixing plates, the ends of the set plate are provided with fixing plates, and the fixing plates of two adjacent heat exchange fins are connected to the fixing plates by bolts.

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