A parallel air source heat pump unit with balanced air intake and multiple air exchangers

Abstract

This utility model relates to a parallel air source heat pump unit with balanced air intake and multiple air exchangers, including multiple V-shaped air heat exchangers, an upper sealing plate, a lower sealing plate, a bottom rectangular frame, multiple corner columns, and multiple intermediate columns. The corner columns are vertically positioned at the four corners of the bottom rectangular frame, and the intermediate columns are vertically positioned between the top beam connecting plate and the bottom rectangular frame. The upper sealing plate is positioned between the top beam connecting plates, and the lower sealing plate is positioned along the width of the bottom rectangular frame. The space between the multiple V-shaped air heat exchangers and the mounting frame forms an air intake cavity, with the air intake area on one side of the middle air intake cavity being 40% to 50% of the finned heat exchanger area of ​​the V-shaped air heat exchanger. This utility model optimizes the airflow distribution, resulting in a more rational airflow path. While controlling the overall volume of the unit, it effectively improves the air intake balance of the parallel air heat exchangers, while also reserving sufficient maintenance space and improving the overall heat exchange efficiency of the heat exchangers.

Description

Technical Field

[0001] This utility model relates to the field of air source heat pump technology, and in particular to a parallel air source heat pump multi-air heat exchanger unit with balanced air intake. Background Technology

[0002] Currently, most large-capacity air source heat pump units employ multiple scroll compressors, each independently matched with a refrigeration system. The air-to-ground heat exchanger in this system typically uses a combination of multiple conventional heat exchangers. When the spacing between adjacent heat exchangers is small, the central air intake area can lead to turbulent airflow, reduced air volume, decreased heat exchange efficiency, and reduced system energy efficiency, potentially even causing equipment failure. Conversely, while a larger spacing avoids issues like insufficient air volume, it may introduce new problems such as wasted space and increased system costs. In summary, existing parallel heat exchangers suffer from efficiency reduction due to uneven air intake. Summary of the Invention

[0003] This invention provides a parallel air source heat pump multi-air heat exchanger unit with balanced air intake, which solves the problem of reduced efficiency caused by uneven air intake in existing parallel heat exchangers.

[0004] The technical solution of this utility model is as follows: A parallel air source heat pump multi-air heat exchanger unit with balanced air intake includes multiple V-shaped air heat exchangers and a mounting frame. The mounting frame includes: an upper sealing plate, a lower sealing plate, a bottom rectangular frame, multiple corner columns, and multiple intermediate columns. The bottom of each of the V-type air heat exchangers is arranged along the width direction of the bottom rectangular frame, and multiple V-type air heat exchangers are arranged at intervals along the length direction of the bottom rectangular frame. The top beams of adjacent V-type air heat exchangers are connected by a top beam connecting plate. Multiple corner columns are vertically arranged at the four corners of the bottom rectangular frame, and the tops of the multiple corner columns are connected to the top beam of the V-shaped air heat exchanger. Multiple middle columns are vertically arranged between the top beam connecting plate and the bottom rectangular frame. The intermediate column is located between adjacent V-shaped air heat exchangers, the upper sealing plate is arranged between the top beam connecting plates, and the lower sealing plate is arranged along the width direction of the bottom rectangular frame and located between adjacent V-shaped air heat exchangers. The space between the multiple V-shaped air heat exchangers and the mounting frame forms an air inlet cavity, and the air inlet area on one side of the air inlet cavity located in the middle is 40% to 50% of the finned heat exchanger area of ​​the V-shaped air heat exchanger.

[0005] Furthermore, the bottom rectangular frame includes: two bottom horizontal beams and two bottom vertical beams, the two bottom horizontal beams and the two bottom vertical beams are connected perpendicularly to each other, the bottoms of the multiple corner columns are set at the four corners of the bottom rectangular frame, and the tops of the multiple corner columns are respectively connected to the four corners of the bottom rectangular frame.

[0006] Furthermore, multiple longitudinal supports are provided between the two bottom crossbeams, and the longitudinal supports are parallel to the bottom longitudinal beams.

[0007] Furthermore, the intermediate column is provided with multiple air inlets.

[0008] Furthermore, the number of the V-type air heat exchangers is 2 to 5.

[0009] Furthermore, the V-shaped heat exchanger includes: a left finned heat exchanger, a right finned heat exchanger, a triangular plate, a heat exchanger base, a top beam, and an axial flow fan assembly. The bottoms of the left and right finned heat exchangers are both mounted on the heat exchanger base. The left and right finned heat exchangers are arranged in a V-shape. The tops of the left and right finned heat exchangers are mounted on the top beam. The axial flow fan assembly is mounted on the top beam. The left and right finned heat exchangers and the top beam are sealed off on both sides by the triangular plate.

[0010] The beneficial effects of this utility model are as follows: This utility model uses a V-shaped air heat exchanger, which saves space inside the unit. Simultaneously, the top and bottom of adjacent V-shaped air heat exchangers are sealed by upper and lower sealing plates, relying on lateral open spaces for air intake, optimizing the airflow distribution, making the air duct more rational, and achieving balanced air intake. Furthermore, by specifying that the single-side air intake area of ​​the air intake cavity located in the middle is 40%~50% of the finned heat exchanger area of ​​the V-shaped air heat exchanger, the air intake balance of the parallel air heat exchangers is effectively improved while controlling the overall volume of the unit, and sufficient maintenance space is reserved, thus improving the overall heat exchange efficiency of the heat exchangers. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the parallel air source heat pump multi-air heat exchanger unit with balanced air intake according to this utility model.

[0012] Figure 2 This is a schematic diagram of the V-type air heat exchanger in this utility model.

[0013] Figure 3 This is a schematic diagram of the airflow direction between the air inlet chamber and the working chamber of the parallel device of the air source heat pump multi-air heat exchanger in this utility model. Detailed Implementation

[0014] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0015] In the technical solution of this utility model, the V-type air heat exchanger structure specifically adopted is as follows: Figure 2 As shown, specifically: a left finned heat exchanger 1-1, a right finned heat exchanger 1-2, a triangular plate 1-3, a heat exchanger base 1-4, a top beam 1-5, and an axial flow fan assembly 1-6. The bottoms of the left finned heat exchanger 1-1 and the right finned heat exchanger 1-2 are both mounted on the heat exchanger base 1-4. The left finned heat exchanger 1-1 and the right finned heat exchanger 1-2 are arranged in a V-shape. The tops of the left finned heat exchanger 1-1 and the right finned heat exchanger 1-2 are mounted on the top beam 1-5. The axial flow fan assembly 1-6 is mounted on the top beam 1-5. The triangular plate 1-3 is disposed between the left finned heat exchanger 1-1, the right finned heat exchanger 1-2, and the top beam 1-5, forming a working cavity between the left finned heat exchanger 1-1, the right finned heat exchanger 1-2, and the triangular plate 1-3. Triangular plate 1-3 blocks both sides of the left finned heat exchanger 1-1 and the right finned heat exchanger 1-2, so that the air entering the working chamber can only be discharged from the top fan. The air in the air inlet chamber enters the working chamber through the left finned heat exchanger 1-1 and the right finned heat exchanger 1-2, and during this period, the internal pipes of the heat exchangers are cooled by heat exchange.

[0016] The fins used on the windward side of the left and right finned heat exchangers are not shown in the figure. They are arranged in an orderly manner at a certain interval, with a single fin thickness of 0.105 mm and a gap of 1.7 mm between every two fins. When the fan is working, air enters the working chamber through the two finned heat exchangers and is then discharged upward by the fan.

[0017] Figure 1 This is a structural diagram illustrating the specific structure of the parallel air-source heat pump multi-air heat exchanger unit with balanced air intake according to this utility model. (For example...) Figure 1 As shown, this utility model includes: Multiple V-shaped air heat exchangers 1 and mounting frame, the mounting frame including: upper sealing plate 12, lower sealing plate, bottom rectangular frame, multiple corner columns 2 and multiple intermediate columns 7; The bottom of each V-type air heat exchanger 1 is arranged along the width direction of the bottom rectangular frame, and multiple V-type air heat exchangers 1 are spaced apart along the length direction of the bottom rectangular frame. The top beams 1-5 of adjacent V-type air heat exchangers 1 are connected by top beam connecting plates 6. Multiple corner columns 2 are vertically arranged at the four corners of the bottom rectangular frame. The tops of the multiple corner columns 2 are connected to the top beam 1-5 of the V-shaped air heat exchanger 1. Multiple intermediate columns 7 are vertically arranged between the top beam connecting plate 6 and the bottom rectangular frame. The intermediate column 7 is located between adjacent V-shaped air heat exchangers 1, the upper sealing plate 12 is arranged between the top beam connecting plates 6, and the lower sealing plate is arranged along the width direction of the bottom rectangular frame and located between adjacent V-shaped air heat exchangers 1. The space between the multiple V-type air heat exchangers 1 and the mounting frame forms an air inlet cavity. The air inlet area on one side of the air inlet cavity in the middle is 40% to 50% of the finned heat exchanger area of ​​the V-type air heat exchanger 1. When this condition is met, the overall effect of the air field distribution of the parallel air heat exchanger unit is the best.

[0018] In one embodiment of this utility model, the bottom rectangular frame includes: two bottom horizontal beams 3 and two bottom vertical beams 4, the two bottom horizontal beams 3 and the two bottom vertical beams 4 are connected perpendicularly to each other, the bottoms of the multiple corner columns 2 are arranged at the four corners of the bottom rectangular frame, and the tops of the multiple corner columns 2 are respectively connected to the four corners of the bottom rectangular frame.

[0019] In one embodiment of this utility model, multiple longitudinal supports 5 are provided between the two bottom crossbeams 3. The longitudinal supports 5 are parallel to the bottom longitudinal beams 4, and the bottom longitudinal beams 4 can improve the overall structural stability.

[0020] In one embodiment of this utility model, the intermediate column 7 is provided with a plurality of air inlet holes 71, which increases the air inlet area of ​​the intermediate air inlet cavity.

[0021] In one embodiment of this utility model, the number of V-shaped air heat exchangers 1 is 2 to 5.

[0022] The following is a detailed description of this utility model when the number of V-type air heat exchangers is 3: like Figure 1Taking the example shown, for ease of description, they can be named from left to right as the first V-type air heat exchanger, the second V-type heat exchanger, and the third V-type heat exchanger. The top beam 1-5 of the first V-type air heat exchanger is connected to the top beam 1-5 of the second V-type heat exchanger through the top beam connecting plate 6, and an intermediate column 7 is added at the same position. At the same time, the upper sealing plate 12 is installed between the intermediate columns 7. The bottom rectangular frame is provided with a longitudinal support 5 at the position aligned with the intermediate column 7. The two sides of the longitudinal support 5 are the lower sealing plate 4 11 and the lower sealing plate 5 13. The side of the lower sealing plate 4 11 away from the longitudinal support 5 is connected to the heat exchanger base 1-4 of the second V-type air heat exchanger, and the side of the lower sealing plate 5 13 away from the longitudinal support 5 is connected to the heat exchanger base 1-4 of the first V-type air heat exchanger. A lower sealing plate 8 is provided between the first V-type air heat exchanger and the leftmost bottom longitudinal beam 4. The top beam 1-5 of the second V-type air heat exchanger is connected to the top beam 1-5 of the third V-type heat exchanger through the top beam connecting plate 6, and an intermediate column 7 is added at the same position. At the same time, the upper sealing plate 12 is installed between the intermediate columns 7. The bottom rectangular frame is provided with a longitudinal support 5 at the position aligned with the intermediate column 7. The two sides of the longitudinal support 5 are the lower sealing plate 3 10 and the lower sealing plate 6 14. The side of the lower sealing plate 3 10 away from the longitudinal support 5 is connected to the heat exchanger base 1-4 of the second V-type air heat exchanger, and the side of the lower sealing plate 6 14 away from the longitudinal support 5 is connected to the heat exchanger base 1-4 of the third V-type air heat exchanger. The lower sealing plate 2 9 is provided between the third V-type air heat exchanger and the leftmost bottom longitudinal beam 4.

[0023] Therefore, the air inlet surfaces on one side of the air inlet chambers between the top beam 1-5 of the second V-type air heat exchanger and the top beam 1-5 of the third V-type air heat exchanger, as well as between the top beam 1-5 of the first V-type air heat exchanger and the second V-type air heat exchanger, are trapezoidal. Simultaneously, the air inlet area must be 40% to 50% of the finned heat exchanger area of ​​the V-type air heat exchanger 1. Since there are three air inlet surfaces on both sides of the air inlet chambers—two triangular air inlet surfaces and one rectangular side air inlet surface—the above conditions do not need to be met.

[0024] like Figure 3 As shown, the system includes four air inlet chambers (left, middle, and right) and three working chambers for V-shaped air heat exchangers. When the fan is operating, the air intake method for the parallel air heat exchangers is that air first enters the air inlet chambers and then passes through the finned heat exchangers into the working chambers. The design of the air inlet area of ​​the two middle air inlet chambers is crucial. When the air inlet area of ​​the two middle air inlet chambers is 40-50% of the windward area of ​​the finned heat exchangers, the overall airflow distribution of the parallel air heat exchangers is optimal. This improves the airflow uniformity of the parallel air heat exchangers, enhances the heat exchange efficiency, and also provides reasonable maintenance space, with minimal change in structural cost.

[0025] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A parallel air source heat pump multi-air heat exchanger unit with balanced air intake, characterized in that, It includes multiple V-type air heat exchangers (1) and a mounting frame, the mounting frame including: an upper sealing plate (12), a lower sealing plate, a bottom rectangular frame, multiple corner columns (2) and multiple intermediate columns (7). The bottom of each of the V-type air heat exchangers (1) is arranged along the width direction of the bottom rectangular frame, and multiple V-type air heat exchangers (1) are arranged at intervals along the length direction of the bottom rectangular frame. The top beams (1-5) of adjacent V-type air heat exchangers (1) are connected by a top beam connecting plate (6). Multiple corner columns (2) are vertically arranged at the four corners of the bottom rectangular frame. The top of the multiple corner columns (2) is connected to the top beam (1-5) of the V-shaped air heat exchanger (1). Multiple intermediate columns (7) are vertically arranged between the top beam connecting plate (6) and the bottom rectangular frame. The intermediate column (7) is located between adjacent V-type air heat exchangers (1), the upper sealing plate (12) is arranged between the top beam connecting plates (6), and the lower sealing plate is arranged along the width direction of the bottom rectangular frame and located between adjacent V-type air heat exchangers (1). The space between the multiple V-type air heat exchangers (1) and the mounting frame forms an air inlet cavity. The air inlet area on one side of the air inlet cavity located in the middle is 40% to 50% of the finned heat exchanger area of ​​the V-type air heat exchanger (1).

2. The parallel air-source heat pump multi-air heat exchanger unit with balanced air intake as described in claim 1, characterized in that, The bottom rectangular frame includes two bottom horizontal beams (3) and two bottom vertical beams (4), which are perpendicularly connected to each other. The bottoms of the multiple corner columns (2) are set at the four corners of the bottom rectangular frame, and the tops of the multiple corner columns (2) are respectively connected to the four corners of the bottom rectangular frame.

3. The parallel air-source heat pump multi-air heat exchanger unit with balanced air intake as described in claim 2, characterized in that, Multiple longitudinal supports (5) are provided between the two bottom crossbeams (3), and the longitudinal supports (5) are parallel to the bottom longitudinal beams (4).

4. The parallel air-source heat pump multi-air heat exchanger unit with balanced air intake as described in claim 1, characterized in that, The intermediate column (7) has multiple air inlets (71).

5. The parallel air-source heat pump multi-air heat exchanger unit with balanced air intake as described in claim 1, characterized in that, The number of the V-type air heat exchangers (1) is 2 to 5.

6. The parallel air-source heat pump multi-air heat exchanger unit with balanced air intake as described in claim 1, characterized in that, The V-shaped heat exchanger (1) includes: a left finned heat exchanger (1-1), a right finned heat exchanger (1-2), a triangular plate (1-3), a heat exchanger base (1-4), a top beam (1-5), and an axial flow fan assembly (1-6). The bottom of the left finned heat exchanger (1-1) and the bottom of the right finned heat exchanger (1-2) are both mounted on the heat exchanger base (1-4). The left finned heat exchanger (1-1) and the right finned heat exchanger (1-2) are arranged in a V-shape. The top of the left finned heat exchanger (1-1) and the right finned heat exchanger (1-2) are mounted on the top beam (1-5). The axial flow fan assembly (1-6) is mounted on the top beam (1-5). The triangular plate (1-3) is disposed between the left finned heat exchanger (1-1), the right finned heat exchanger (1-2), and the top beam (1-5).

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