An air-cooled heat exchanger

Abstract

The utility model provides a kind of air-cooled heat exchanger, it is related to heat exchanger technical field, including installation outer ring, installation inner ring, several heat collecting spokes, motor and fan blade, installation inner ring is coaxial with installation completely, heat collecting spoke is evenly distributed between installation inner ring and installation outer ring, the inclination between heat collecting spoke and the axis of installation inner ring is 60~80 °, the shell of motor is fixed in installation inner ring, fan blade is connected with motor output shaft, fan blade is located in installation outer ring inner side, and spiral heat exchange tube is arranged between fan blade and heat collecting spoke and is fixed on heat collecting spoke. The utility model has the advantages of not easy to accumulate dust.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to an air-cooled heat exchanger. Background Technology

[0002] Heat exchangers have a wide range of applications. Taking engineering equipment as an example, they may be installed at the bottom, side or top of the equipment as needed. When installed at the top of the equipment, existing finned heat exchangers accumulate a lot of dust, which is difficult to clean. The dense, small slots of the fins greatly reduce the heat dissipation effect after dust accumulation. In addition, most existing heat exchangers are square or round, with a flat airflow surface for heat dissipation. For heat exchangers installed at the top of the equipment, the space at the top of the equipment can be fully utilized to increase the heat dissipation area. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by proposing a heat exchanger that is less prone to dust accumulation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an air-cooled heat exchanger, characterized in that it includes an outer mounting ring, an inner mounting ring, a plurality of heat-collecting spokes, a motor, and fan blades. The inner mounting ring is completely coaxial with the outer mounting ring. The heat-collecting spokes are evenly distributed circumferentially between the inner and outer mounting rings. The heat-collecting spokes are inclined at an angle of 60 to 80° to the axis of the inner mounting ring. The motor housing is fixed inside the inner mounting ring. The fan blades are connected to the motor output shaft. The fan blades are located inside the outer mounting ring. A spiral heat exchange tube is provided between the fan blades and the heat-collecting spokes and is attached to and fixed on the heat-collecting spokes.

[0005] When used on the top of equipment, this heat exchanger is essentially a cone shape, with heat-collecting spokes distributed in an umbrella-like pattern between the inner and outer mounting rings. The heat exchange tubes are also spirally conical and welded to the heat-collecting spokes. The two ends of the heat exchange tubes are used for inputting hot liquid media and discharging cold liquid media, respectively. The advantage of this method is that it no longer uses traditional fins but instead uses heat-collecting spokes, which are less prone to dust accumulation and easier to clean. In addition, its heat dissipation surface is conical, with an area much larger than a circular plane. The conical structure has a converging effect on airflow, with relatively less lateral airflow and most of it distributed longitudinally. The heat-collecting spokes can also serve as protective covers for the fan blades. Therefore, this structure is relatively simple and has significant advantages over existing flat heat exchangers when used on the top of equipment. Attached Figure Description

[0006] Figure 1 This is a plan view of the heat exchanger;

[0007] Figure 2 This is a schematic diagram of the heat exchanger after removing the motor and fan blades.

[0008] Figure 3 This is a side view of the heat exchanger.

[0009] Legend: 1. Install the outer ring; 2. Install the inner ring; 3. Heat collecting spokes; 4. Motor; 5. Fan blades; 6. Heat exchange tubes. Detailed Implementation

[0010] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.

[0011] like Figure 1 , Figure 2 and Figure 3 As shown, the device includes an outer mounting ring 1, an inner mounting ring 2, several heat-collecting spokes 3, a motor 4, and fan blades 5. The inner mounting ring 2 is completely coaxial with the outer mounting ring. The heat-collecting spokes 3 are evenly distributed circumferentially between the inner mounting ring 2 and the outer mounting ring 1. The axis of the heat-collecting spokes 3 and the axis of the inner mounting ring 2 are inclined at an angle of 60 to 80 degrees. The housing of the motor 4 is fixed inside the inner mounting ring 2. The fan blades 5 are connected to the output shaft of the motor 4 and are located inside the outer mounting ring 1. A spiral heat exchange tube 6 is provided between the fan blades 5 and the heat-collecting spokes 3 and is attached to and fixed on the heat-collecting spokes 3.

[0012] When used on the top of equipment, this heat exchanger is equivalent to a cone shape, with heat-collecting spokes 3 distributed in an umbrella shape between the inner mounting ring 2 and the outer mounting ring 1. The heat exchange tube 6 is also spirally conical and welded to the heat-collecting spokes 3. The two ends of the heat exchange tube 6 are used for inputting hot liquid medium and discharging cold liquid medium, respectively. The advantage of this method is that it no longer uses traditional fins, but uses heat-collecting spokes 3, which is less prone to dust accumulation and easier to clean. In addition, its heat dissipation surface is conical, with an area much larger than a circular plane. The conical structure has a converging effect on airflow, with relatively less lateral airflow and most of it distributed longitudinally. The heat-collecting spokes 3 can also serve as a protective cover for the fan blades 5. Therefore, this structure is relatively simple and has obvious advantages over existing flat heat exchangers when used on the top of equipment.

[0013] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. An air-cooled heat exchanger, characterized in that, The device includes an outer mounting ring (1), an inner mounting ring (2), several heat-collecting spokes (3), a motor (4), and fan blades (5). The inner mounting ring (2) is completely coaxial with the device. The heat-collecting spokes (3) are evenly distributed circumferentially between the inner mounting ring (2) and the outer mounting ring (1). The axis of the heat-collecting spokes (3) and the inner mounting ring (2) are inclined at an angle of 60 to 80 degrees. The housing of the motor (4) is fixed inside the inner mounting ring (2). The fan blades (5) are connected to the output shaft of the motor (4). The fan blades (5) are located inside the outer mounting ring (1). A spiral heat exchange tube (6) is provided between the fan blades (5) and the heat-collecting spokes (3) and is attached to and fixed on the heat-collecting spokes (3).

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