Air heat exchanger

Abstract

The utility model discloses an air heat exchanger, which comprises a frame, a heat exchanger and a heat exchanger, the at least one single-piece heat exchanger is arranged in the frame and extends from the air inlet to the air outlet; the flow channels are arranged between every two adjacent single-piece heat exchangers or between one single-piece heat exchanger and the frame; two ends of the flow channel are respectively communicated with the air inlet and the air outlet; the fins are rotatably mounted in at least one flow channel, and when air in the flow channel is low in flow, the fins partially seal the flow channel; and when the air flow in the flow channel is increased, the flow channel is gradually opened by the fins. According to the air heat exchanger, a plurality of fins are additionally arranged in a flow channel, and the fins can effectively disturb airflow in a low-wind-speed environment, so that the heat exchange efficiency is enhanced; and when the wind speed rises, the fins can automatically adjust the inclination angles of the fins, so that the air flowing resistance is reduced, the performance of the heat exchanger is optimized, and the adaptability and efficiency of the air heat exchanger under different wind speed conditions are improved.

Description

Technical Field

[0001] The utility model belongs to the field of bus ducts, and in particular relates to an air heat exchanger. Background Art

[0002] An air-to-air heat exchanger, also known as an air-to-air heat exchanger, is a heat exchange device widely used in industrial production processes. Its main function is to transfer heat between two fluids to improve energy efficiency.

[0003] In previous designs, to increase fluid turbulence and enhance heat transfer, heat exchanger surfaces were designed with convex hulls. These hulls were manufactured through metal stamping or plastic thermoforming processes. This created turbulence and eddy currents in the air flowing through the heat exchanger, disrupting the laminar boundary layer and enhancing heat transfer. However, as ventilation increases, while the laminar boundary layer's impact on heat transfer may decrease, the increased flow velocity, due to the physical limitations of the flow channel, leads to increased flow resistance, which in turn increases fan power consumption and impacts the system's economic efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a low-resistance air heat exchanger with a self-regulating function.

[0005] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0006] An air heat exchanger comprising:

[0007] The frame is provided with an air inlet and an air outlet;

[0008] at least one monolithic heat exchanger disposed within the frame and extending from the air inlet to the air outlet;

[0009] A flow channel is provided between two adjacent monolithic heat exchangers, or between one of the monolithic heat exchangers and the frame; both ends of the flow channel are connected to the air inlet and the air outlet respectively;

[0010] The fin is rotatably mounted in at least one of the flow channels and is configured to partially close the flow channel when the air flow in the flow channel is low; and gradually open the flow channel when the air flow in the flow channel increases.

[0011] Furthermore, the fins are arranged to be inclined toward the direction of air flow.

[0012] Furthermore, the fin is hinged to the monolithic heat exchanger via a spring hinge.

[0013] Furthermore, the fins are made of elastic material and are configured to gradually undergo elastic deformation when the air flow in the flow channel increases.

[0014] Furthermore, a plurality of the fins are arranged in a row on the monolithic heat exchanger.

[0015] Furthermore, a plurality of fins are cross-arranged on the monolithic heat exchanger.

[0016] Furthermore, it also includes a boss, which is installed in at least one of the flow channels.

[0017] Furthermore, there are multiple flow channels, and the flow channels on which the fins are installed are spaced apart from the flow channels on which the bosses are installed.

[0018] Furthermore, there are multiple flow channels, and the flow channels installed with the fins are spaced apart from the flow channels not installed with the fins.

[0019] Furthermore, the fins are in one or more of the following shapes: streamlined, teardrop-shaped, triangular pyramidal, rectangular, and semicircular.

[0020] Furthermore, the fins are in a flat plate shape or a curved surface shape.

[0021] Beneficial effects of the utility model:

[0022] This air heat exchanger incorporates multiple fins within the flow channel. These fins effectively disrupt the airflow in low wind speeds, thereby enhancing heat exchange efficiency. As wind speeds increase, the fins automatically adjust their inclination angles to reduce air flow resistance, optimizing the heat exchanger's performance and enhancing its adaptability and efficiency under varying wind speeds. The air heat exchanger automatically adjusts to varying ventilation volumes, improving heat exchange efficiency while reducing energy consumption, achieving a dual optimization of performance and economy.

[0023] The fins added inside the air heat exchanger are equivalent to the ribs added to the single-piece heat exchanger, which increases the effective heat exchange area. The temperature of the high-temperature air on the indoor side can be transferred to the outdoor side through the fins. According to the use conditions, if there is no spraying condition on the outdoor side, fins can also be provided on the outdoor side to further enhance the heat exchange effect and reduce the demand for outdoor air volume, thereby achieving the benefit of reducing flow rate and wind resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of an air heat exchanger in one embodiment of the present utility model;

[0025] Figure 2 This is a front view of an air heat exchanger according to an embodiment of the present invention;

[0026] Figure 3 It is a front view of another embodiment of the air heat exchanger of the present invention;

[0027] Figure 4 This is a schematic diagram of the angle change of the fins in one embodiment of the present invention as the air volume changes;

[0028] Figure 5 This is a schematic diagram of airflow disturbance in a single-side flow channel of a monolithic heat exchanger in one embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the three-dimensional structure of a single-chip heat exchanger in one embodiment of the present utility model;

[0030] Figure 7 This is a schematic diagram of the layout of the fins of the present invention in one embodiment;

[0031] Figure 8 This is a schematic diagram of the layout of the fins of the present invention in another embodiment;

[0032] Figure 9 This is a schematic diagram of the layout of the fins of the present invention in yet another embodiment;

[0033] Figure 10 This is a schematic diagram of the layout of the fins of the present invention in yet another embodiment;

[0034] Figure 11 This is a schematic diagram of the layout of the fins of the present invention in yet another embodiment;

[0035] Figure 12 This is a side view of a fin according to an embodiment of the present invention.

[0036] Reference numerals include:

[0037] 100 - frame 110 - air inlet 120 - air outlet

[0038] 200 - single-piece heat exchanger 210 - fin 220 - boss

[0039] 300—Flow channel DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0042] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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, and therefore cannot be understood as a limitation on the present invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0044] Please refer to Figure 1-Figure 3 , which is a preferred embodiment of the present invention, the air heat exchanger includes: a frame 100, which is provided with an air inlet 110 and an air outlet 120; at least one monolithic heat exchanger 200, which is arranged in the frame 100 and extends from the air inlet 110 to the air outlet 120; a flow channel 300, which is arranged between two adjacent monolithic heat exchangers 200, or between a monolithic heat exchanger 200 and the frame 100; the two ends of the flow channel 300 are respectively connected to the air inlet 110 and the air outlet 120; a fin 210, which is rotatably mounted in at least one of the flow channels 300, and is configured so that when the air flow in the flow channel 300 is low, the fin 210 partially closes the flow channel 300; when the air flow in the flow channel 300 increases, the fin 210 gradually opens the flow channel 300. In this application, the air heat exchanger incorporates multiple fins 210 within the flow channel 300. These fins 210 effectively disrupt the airflow in low wind speed environments, thereby enhancing heat exchange efficiency. When the wind speed increases, the fins 210 automatically adjust their inclination angles to reduce air flow resistance, optimize heat exchanger performance, and enhance the adaptability and efficiency of the air heat exchanger under varying wind speed conditions. The following describes each of these components in further detail.

[0045] like Figure 1 and Figure 2As shown, the frame 100 is in the shape of a rectangular box, and is provided with an air inlet 110 and an air outlet 120 opposite to each other. At least one monolithic heat exchanger 200 is installed in the frame 100 , and the monolithic heat exchanger 200 extends from the air inlet 110 to the air outlet 120 .

[0046] like Figure 2 and Figure 3 At least one flow channel 300 is provided between two adjacent monolithic heat exchangers 200 or between a monolithic heat exchanger 200 and the frame 100. Both ends of the flow channel 300 are connected to the air inlet 110 and the air outlet 120, respectively.

[0047] Specifically, in one embodiment of the present application, Figure 2 As shown, the flow channel 300 with the fin 210 installed is spaced apart from the flow channel 300 without the fin 210 installed. In another embodiment of the present application, as shown in FIG. Figure 3 As shown, the air heat exchanger further includes a boss 220, which is mounted in at least one of the flow channels 300. The boss 220 and the fins 210 can be mounted in a variety of matching manners. For example, in other embodiments of the present application, the flow channel 300 on which the fins 210 are mounted is spaced apart from the flow channel 300 on which the boss 220 is mounted.

[0048] There are many ways to install the fins 210 in the flow channel 300. This application does not impose any specific restrictions. As long as the following installation conditions are met: the fins 210 can be rotatably installed in at least one of the flow channels 300 and are arranged as follows: Figure 4 As shown, when the air flow in the flow channel 300 is low, the fin 210 partially closes the flow channel 300; when the air flow in the flow channel 300 increases, the fin 210 gradually opens the flow channel 300. For example, in one embodiment of the present application, the fin 210 is hinged to the monolithic heat exchanger 200 by a spring hinge. In one embodiment of the present application, the fin 210 is made of an elastic material and is configured so that when the air flow in the flow channel 300 increases, the fin 210 is blown open by the air flow, and the fin 210 gradually undergoes elastic deformation, which can effectively reduce the air flow resistance; when the air flow rate is low, the fin 210 returns to its original angle due to its own internal stress, as shown in FIG. Figure 5 As shown, the requirements of turbulence and enhanced heat exchange can be met at low flow rates, thereby enhancing heat exchange efficiency.

[0049] The fins 210 can be arranged in a variety of ways on the monolithic heat exchanger 200. For example, in one embodiment of the present application, Figure 6 and Figure 7As shown, a plurality of fins 210 are arranged in a row on the monolithic heat exchanger 200. In another embodiment of the present application, as shown in FIG. Figure 8 and Figure 9 As shown, a plurality of fins 210 are cross-arranged on the monolithic heat exchanger 200 to further enhance airflow disturbance and heat exchange.

[0050] This application does not limit the specific shape of the fin 210. Figure 7-11 As shown, the fin 210 is in one or more of the following shapes: streamlined, teardrop-shaped, triangular pyramidal, rectangular, and semicircular.

[0051] To reduce air resistance, Figure 12 As shown, the fins 210 are arranged to be inclined toward the direction of air flow. More specifically, the fins 210 are in the shape of a flat plate or a curved surface.

[0052] The addition of the fins 210 inside the air heat exchanger is equivalent to adding fins to the single-piece heat exchanger 200, which increases the effective heat exchange area. The temperature of the high-temperature air on the indoor side can be transferred to the outdoor side through the fins 210. According to the use conditions, if there is no spraying condition on the outdoor side, fins can also be provided on the outdoor side to further enhance the heat exchange effect and reduce the demand for outdoor air volume, thereby achieving the benefit of reducing flow rate and wind resistance.

[0053] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scope based on the concept of the present invention. As long as these changes do not deviate from the concept of the present invention, they all fall within the scope of protection of the present invention.

Claims

1. An air heat exchanger, characterized in that: include: The frame (100) is provided with an air inlet (110) and an air outlet (120); at least one monolithic heat exchanger (200), disposed in the frame (100) and extending from the air inlet (110) to the air outlet (120); A flow channel (300) is provided between two adjacent monolithic heat exchangers (200), or between one of the monolithic heat exchangers (200) and the frame (100); both ends of the flow channel (300) are connected to the air inlet (110) and the air outlet (120), respectively; The fin (210) is rotatably mounted in at least one of the flow channels (300) and is configured such that when the air flow in the flow channel (300) is low, the fin (210) partially closes the flow channel (300); and when the air flow in the flow channel (300) increases, the fin (210) gradually opens the flow channel (300).

2. The air heat exchanger according to claim 1, characterized in that The fins (210) are arranged to be inclined toward the direction of air flow.

3. The air heat exchanger according to claim 2, characterized in that: The fin (210) is hinged to the monolithic heat exchanger (200) via a spring hinge.

4. The air heat exchanger according to claim 2, characterized in that: The fin (210) is made of an elastic material and is configured such that when the air flow in the flow channel (300) increases, the fin (210) gradually undergoes elastic deformation.

5. The air heat exchanger according to claim 4, characterized in that: A plurality of fins (210) are arranged in a row on the monolithic heat exchanger (200).

6. The air heat exchanger according to claim 4, characterized in that: A plurality of fins (210) are cross-arranged on the monolithic heat exchanger (200).

7. The air heat exchanger according to claim 5 or 6, characterized in that: It also includes a boss (220), wherein the boss (220) is installed in at least one of the flow channels (300).

8. The air heat exchanger according to claim 7, characterized in that: There are a plurality of flow channels (300), and the flow channels (300) on which the fins (210) are installed are spaced apart from the flow channels (300) on which the bosses (220) are installed.

9. The air heat exchanger according to claim 5 or 6, characterized in that: There are a plurality of flow channels (300), and the flow channels (300) on which the fins (210) are installed are spaced apart from the flow channels (300) on which the fins (210) are not installed.

10. The air heat exchanger according to claim 1, characterized in that The fins (210) are in one or more of the following shapes: streamlined, teardrop-shaped, triangular pyramidal, rectangular, and semicircular.

11. The air heat exchanger according to claim 1, characterized in that The fin (210) is in a flat plate shape or a curved surface shape.

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