CN107504846A - Engineering truck aerofoil profile heat-pipe type radiator structure - Google Patents

Abstract

The invention discloses a kind of engineering truck aerofoil profile heat-pipe type radiator structure.Including fin, heat pipe, heat pipe is in aircraft wing, and drainage system is housed on the two side of heat pipe, and drainage system appearance has the aerofoil profile feature or triangle fin similar with aircraft wing heat pipe, drainage system is located among upper and lower two layers of fin, and not with fin contacts or being connected.The present invention while air flow resistance is reduced as far as possible, is drained using lower resistance aircraft wing heat pipe to the air of inflow radiator；Using the mode of drainage system guiding air flow, force air to be flowed in runner, reduce the air themperature near high-temp solid, improving performance；By adjusting the established angle of drainage system, on the premise of air flow resistance is reduced as far as possible, in a manner of controlling air velocity direction, the helical flow under ideal state is obtained（Referring to Fig. 6）, lift heat convection effect.

Description

Airfoil heat pipe radiator structure for engineering vehicles

technical field

The invention relates to a tube-fin radiator, in particular to an airfoil heat pipe radiator structure for an engineering vehicle that can improve the working performance of the radiator of the engine cooling system in the engine compartment of the engineering vehicle.

Background technique

Engineering vehicles usually use a high-power diesel engine as a power source. When the fuel is burned, a large amount of heat is generated. This part of the heat is transferred to the coolant through the cylinder wall. The cold air performs heat exchange, so as to achieve the purpose of cooling and dissipating heat from the engine. Reasonable cylinder temperature is conducive to improving fuel combustion efficiency, thereby ensuring the working stability of the engine and realizing energy saving of the system. The tube-fin radiator has good structural characteristics, heat exchange effect and anti-clogging performance, and is suitable for the common harsh working conditions of engineering vehicles. Therefore, it is usually used in the cooling system of engineering vehicles.

In the current product design, the heat pipes of tube-fin radiators are usually flat pipes. However, with the continuous improvement of vehicle performance, its heat dissipation effect is sometimes difficult to meet the system requirements.

Contents of the invention

In view of this, the present invention provides an airfoil heat pipe radiator structure for engineering vehicles, which improves the performance of the radiator by introducing airfoil heat pipes and air drainage devices composed of aircraft airfoils or delta fins.

The technical solution adopted by the present invention to solve its technical problems is:

An airfoil-shaped heat pipe radiator structure for engineering vehicles, including fins and heat pipes, the heat pipe is in the shape of an aircraft airfoil, the two side walls of the heat pipe are equipped with drainage devices, and the appearance of the drainage device has airfoil characteristics similar to the aircraft airfoil heat pipe Or triangular fins, the drainage device is located in the middle of the upper and lower layers of fins, and does not contact or connect with the fins.

Adopt the present invention of above-mentioned technical scheme, compared with prior art, its beneficial effect is:

Replace the traditional flat tubes with aircraft airfoil heat pipes, and add a pair of symmetrical aircraft airfoils or triangular fins on both sides of the heat pipe to form a drainage device; use low-resistance aircraft airfoil heat pipes to reduce air flow resistance as much as possible, Drain the air flowing into the radiator; use the drainage device to guide the air flow direction, force the air to flow in the flow channel, reduce the air temperature near the high-temperature solid, and improve performance; by adjusting the installation angle of the drainage device, the air flow resistance is minimized Under the premise of controlling the direction of air velocity, a more ideal spiral flow (see Figure 7) can be obtained to improve the effect of convective heat transfer.

Further, the preferred version of the present invention is:

There is a fixed structure of brazing connection between the drainage device and the heat pipe.

The drainage device is solid or hollow. When the thickness of the hollow drainage device is 1-2.5 mm, it is a fully closed structure. When the thickness of the hollow drainage device is less than 1 mm, the side of the non-fixed end is not closed.

According to airfoil airflow attack angle requirements, the installation angle of the drainage device is within two intervals of 0° to 90° but not including 90° and 270° to 360° but not including 270°.

The relationship between the installation angles of the two rows of drainage devices in the flow channel is: the angle of one row of drainage devices + the angle of the other row of drainage devices = 360°.

The extension length of the drainage device in the flow channel is 1/20 to 1/2 of the flow channel width.

Description of drawings

Fig. 1 is a three-dimensional appearance view of an embodiment of the present invention;

Fig. 2 is a three-dimensional perspective view of an embodiment of the present invention;

Figure 3 is a schematic diagram of air flow in side view (0° installation angle);

Figure 4 is a schematic diagram of air flow when viewed from above (0° installation angle);

Figure 5 is a schematic diagram of the installation angle of the drainage device (0° installation angle);

Fig. 6 is a perspective view of the installation of the drainage device when the air realizes spiral flow;

Fig. 7 is a schematic diagram of the ideal air flow path under the action of the drainage device;

Fig. 8 is an overall three-dimensional view of the radiator;

In the figure: 1- fin; 2- aircraft airfoil heat pipe; 3- drainage device; a is the installation angle formed by the installation axis of the drainage device (the line connecting the front end and the rear end when placed horizontally) and the horizontal plane.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, but the present embodiments do not constitute any limitation to the present invention.

Referring to accompanying drawings 1 to 8, an airfoil heat pipe radiator structure for an engineering vehicle is composed of a fin 1, an aircraft airfoil heat pipe 2, and a drainage device 3, and the two side walls of the aircraft airfoil heat pipe 2 are equipped with a drainage device 3. The appearance of the drainage device 3 has airfoil characteristics similar to that of the aircraft airfoil heat pipe 2, and the drainage device 3 is located between the upper and lower layers of fins 1, and does not contact or connect with the fins 1. The connection between the drainage device 3 and the aircraft airfoil heat pipe 2 is a fixed structure by brazing; the drainage device 3 can be solid or hollow, and the hollow drainage device 3 is a fully enclosed structure when the thickness is 1-2.5 The side of the non-fixed end is not closed when the thickness of the drainage device 3 is less than 1 mm; the drainage device 3 can be made of aluminum alloy and other non-metallic materials.

The theoretical installation angle of the drainage device 3 can be changed from 0 to 360°, but according to the airfoil airflow angle of attack requirements, the installation angle of the drainage device 3 is from 0° to 90° but not including 90° and from 270° to 360° but Excluding the two intervals of 270°; the relationship between the installation angles of the two rows of drainage devices 3 in the flow channel is: the angle of the drainage device 3 of one row + the angle of the drainage device 3 of the other row = 360°; the extension length of the drainage device 3 in the flow channel It is 1/20 to 1/2 of the width of the runner.

The assembly method of the airfoil heat pipe type radiator structure for the above-mentioned engineering vehicle is:

The aircraft airfoil heat pipe 2 stands on the ground or on a fixed platform; punch holes on the fin 1 according to the corresponding position of the aircraft airfoil heat pipe 2, and remove the stamped material; 2 After alignment, insert the aircraft airfoil heat pipe 2, and the stop positions after insertion are arranged sequentially from bottom to top; the surface geometric characteristics of the drainage device 3 are processed into a symmetrical aircraft airfoil, such as when the thickness of the drainage device 3 is 1-2.5mm, Keeping the external geometric features, the interior is hollow, fixed symmetrically on both sides of the aircraft airfoil heat pipe 2 by spot welding or other methods, and the side of the non-fixed end is closed, so that the whole has a fully enclosed structure, such as when the thickness of the drainage device 3 is less than 1mm , the surface geometric features are retained, and the side of the non-fixed end is not closed; the fins 1 and the drainage device 3 are installed in an alternating order; Structural strength.

When the thickness of the drainage device 3 is large, the side is closed, and there is no eddy current on the side of the non-fixed end. If it is not closed, the eddy current generated has a great influence on the air flow in the flow channel; when the thickness is small, the brazing probe cannot be closed and fixed. Therefore, Generally not closed. Simply put, the thickness is fully closed, and the small thickness is not closed.

The above descriptions are only preferred and feasible embodiments of the present invention, and are not intended to limit the scope of rights of the present invention. All equivalent structural changes made by using the description and accompanying drawings of the present invention are included in the scope of rights of the present invention. .

Claims (6)

1. An airfoil heat pipe type radiator structure for engineering vehicles, comprising fins and heat pipes, is characterized in that: the heat pipe is in the shape of an aircraft airfoil, and drainage devices are installed on the two side walls of the heat pipes, and the appearance of the drainage device has the same shape as that of the aircraft airfoil heat pipes. Similar to airfoil features or triangular fins, the drainage device is located between the upper and lower fins and does not contact or connect with the fins. 2. The wing-shaped heat pipe radiator structure for engineering vehicles according to claim 1, characterized in that: the drainage device and the heat pipe are fixed structures connected by brazing. 3. The wing-shaped heat pipe radiator structure for engineering vehicles according to claim 1, characterized in that: the drainage device is solid or hollow, and when the thickness of the hollow drainage device is 1-2.5mm, it is a fully enclosed structure, and the thickness of the hollow drainage device is When it is less than 1mm, the side of the non-fixed end is not closed. 4. The airfoil heat pipe radiator structure for engineering vehicles according to claim 1, characterized in that: according to the airfoil airflow angle of attack requirements, the installation angle of the drainage device is between 0° and 90° but excluding 90° and 270° ° to 360° but not within the two intervals of 270°. 5. The airfoil heat pipe radiator structure for engineering vehicles according to claim 1, characterized in that: the relationship between the installation angles of the two rows of drainage devices in the flow channel is: the angle of one row of drainage devices + the angle of the other row of drainage devices = 360 °. 6 . The airfoil heat pipe radiator structure for engineering vehicles according to claim 1 , wherein the extension length of the drainage device in the flow channel is 1/20 to 1/2 of the width of the flow channel. 7 .