Double-row heat exchanger
By designing a structure with baffles on both sides on the tube cover of the double row heat exchanger, the problem of different baffles in the current collecting pipe in the prior art increases storage difficulty, and the effect of reducing the number of accessories and reducing costs is achieved.
Patent Information
- Application Number
- CN202421810267.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The current collectors of existing dual-row heat exchangers require different baffles, which increases storage difficulty.
A double-row heat exchanger is designed, and the baffle of the tube cover has a baffle on both sides, so that it can adapt to the left and right current collectors at both ends of the flat tube, and adapt the current collectors at both ends through a single type of baffle.
A pipe cover is realized to adapt to the first and second current collectors, thereby reducing the number of accessories, reducing storage pressure and reducing costs.
Smart Images
Figure CN222881782U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of heat exchangers, and more specifically, to a double-row heat exchanger. Background Art
[0002] Double-row heat exchangers can make full use of airflow to make heat exchange more complete. Double-row overlapping heat exchangers accept airflow in the same direction, making full use of airflow and improving heat exchange efficiency at the expense of a small amount of wind resistance.
[0003] In order to reduce the cost relative to a single-row heat exchanger, a double-row heat exchanger often reuses a header, which is used to separate two chambers to separate the cooling medium.
[0004] In order to balance the flow of the cooling medium passing through the flat tubes at different heights, related technologies provide baffles in the manifold to adjust the flow resistance.
[0005] Generally, baffles are only provided in the headers that provide cooling medium for the flat tubes. For a double-row heat exchanger in which the headers at both ends of the flat tubes provide cooling medium, baffles need to be placed in the headers at both ends. Different forms of baffles increase the difficulty of storage.
[0006] Based on this, the present application aims to provide a double-row heat exchanger, so that a baffle can be used to adapt to the left and right headers at both ends of the flat tube. Summary of the invention
[0007] The utility model overcomes the disadvantage that the headers of the existing double-row heat exchangers require different baffles, which increases the difficulty of storage, and provides a double-row heat exchanger which can adapt to the left and right headers at both ends of the flat tube with one baffle.
[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0009] A double-row heat exchanger comprising:
[0010] A first manifold having a first partition plate arranged along the length direction, the first manifold being divided into left and right chambers by the first partition plate, the left and right chambers respectively having a liquid inlet and a liquid outlet at the same end of the first manifold in the length direction;
[0011] A second manifold having a second partition plate arranged along the length direction, the second manifold is divided into left and right chambers by the second partition plate, and a notch is provided at one end of the second partition plate away from the liquid inlet and the liquid outlet to connect the left and right chambers;
[0012] Flat tubes and fins;
[0013] The first collecting tube and the second collecting tube include a tube body and a tube cover. The tube body is provided with an insertion seam for connecting the flat tubes. Both sides of the tube cover have baffles with a unidirectional increasing or decreasing cross section along the length direction.
[0014] The double-row heat exchanger in the present application flows through the left chamber of the first header to the left chamber of the second header, then flows to the end of the left chamber of the second header from the notch to the right chamber of the second header, and then reaches the right chamber of the first header through the correspondingly connected flat tubes. Through the above steps, it can be found that the liquid inlet and the liquid outlet are both located at the same end in the length direction of the first header.
[0015] The baffle on the tube cover is used to adjust the flow of the first header and the second header to make the flow uniform.
[0016] The baffle in the present application has baffles on both sides, so that it can adapt to the first header and the second header, so that one accessory can adapt to the first header and the second header, reducing inventory pressure.
[0017] Preferably, the baffle is a sheet of equal size, and a notch or opening is provided on the sheet that increases along the length direction. By means of the above method, "unidirectional increase or decrease of the cross section along the length direction" is achieved.
[0018] Preferably, along the length direction, the cross-sectional areas of the baffles on both sides of the tube cover are increased. When the above arrangement is used, the tube cover corresponding to the first header and the second header needs to be turned over and then rotated 180 degrees.
[0019] Preferably, both ends of the tube cover in the width direction are provided with connecting flanges in the height direction. The connection strength and connection reliability between the tube cover and the tube body are improved by the above method.
[0020] Preferably, the flanges of the tube cover extend outwardly in the forward and backward directions in the height direction to connect the flanges, so that both sides can be reliably connected to the tube body.
[0021] Preferably, the blocking pieces are located on the same side of the tube cover in the width direction.
[0022] Preferably, the blocking pieces are located on both sides of the tube cover in the width direction.
[0023] Preferably, anti-fool structures are provided on both sides of the baffle to prevent the device from failing due to reverse installation.
[0024] Compared with the prior art, the beneficial effects of the utility model are:
[0025] One pipe cover can be used to fit the first header and the second header, thereby reducing the number of accessories, alleviating storage pressure, and thus reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a cross-sectional schematic diagram of the utility model;
[0027] Figure 2 It is a schematic diagram of the header of the utility model;
[0028] Figure 3 yes Figure 2 Exploded diagram of
[0029] Figure 4 It is a three-dimensional diagram of the pipe of the utility model;
[0030] In the figure:
[0031] The first collecting pipe 1 , the first partition plate 11 , the second collecting pipe 2 , the second partition plate 21 , the notch 22 , the flat tube 3 , the tube body 4 , the tube cover 5 , the baffle 6 , the opening 7 , and the connecting flange 8 . DETAILED DESCRIPTION
[0032] The present disclosure is further described below in conjunction with the accompanying drawings and embodiments.
[0033] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.
[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0035] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present disclosure, and do not specifically refer to any part or element in the present disclosure and should not be understood as limitations on the present disclosure.
[0036] In the present disclosure, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present disclosure can be determined according to specific circumstances, and they cannot be understood as limitations on the present disclosure.
[0037] Example:
[0038] Ginseng Figure 1 As shown, a double-row heat exchanger comprises:
[0039] The first manifold 1 has a first partition plate 11 arranged along the length direction. The first manifold 1 is divided into left and right chambers by the first partition plate 11. The left and right chambers have a liquid inlet and a liquid outlet at the same end of the first manifold 1 in the length direction.
[0040] The second manifold 2 has a second partition plate 21 arranged along the length direction. The second manifold 2 is divided into left and right chambers by the second partition plate 21. The second partition plate 21 is provided with a notch 22 at one end away from the liquid inlet and the liquid outlet to connect the left and right chambers.
[0041] Flat tube 3 and fins;
[0042] Ginseng Figure 2 As shown, for the convenience of observation, the ends of the first header 1 and the second header 2 are open. In actual use, the ends of the first header 1 and the second header 2 are closed, and the insertion seam is not drawn to highlight the key points. The first header 1 and the second header 2 include a tube body 4 and a tube cover 5. The tube body 4 is provided with an insertion seam for connecting the flat tube 3. Both sides of the tube cover 5 have baffles 6 with a unidirectional increasing or decreasing cross section along the length direction.
[0043] The double-row heat exchanger in the present application flows through the left chamber of the first header 1 to the left chamber of the second header 2, then flows to the end of the left chamber of the second header 2 from the notch 22 to the right chamber of the second header 2, and then reaches the right chamber of the first header 1 through the correspondingly connected flat tube 3. Through the above steps, it can be found that the liquid inlet and the liquid outlet are both located at the same end of the length direction of the first header 1.
[0044] The baffle 6 on the tube cover 5 is used to adjust the flow of the first header 1 and the second header 2 to make the flow uniform.
[0045] The baffle 6 in the present application has baffles 6 on both sides, so that it can adapt to the first header 1 and the second header 2, so that one accessory can adapt to the first header 1 and the second header 2, reducing inventory pressure.
[0046] Ginseng Figures 2 to 4 As shown, the baffle 6 is a sheet of equal size, and a notch 22 or opening 7 is provided on the sheet that gradually increases along the length direction. By the above method, "unidirectional increase or decrease of the cross section along the length direction" is achieved.
[0047] In some embodiments, the cross-sectional areas of the baffles 6 on both sides of the tube cover 5 are increased along the length direction. When the above arrangement is used, the tube cover 5 needs to be turned over and then rotated 180 degrees corresponding to the first header 1 and the second header 2. The baffles 6 are located on the same side of the tube cover 5 in the width direction.
[0048] Both ends of the tube cover 5 in the width direction are provided with connecting flanges 8 in the height direction. The connection strength and connection reliability of the tube cover 5 and the tube body 4 are improved in this way. Specifically, the flanges of the tube cover 5 extend outwardly to form the connecting flanges 8 in the forward and reverse directions in the height direction. Both sides can be reliably connected to the tube body 4.
[0049] For the baffles 6 on both sides that are located on the same side and both increase in length, in addition to being inverted and fitted with the pipe body 4, they also need to be horizontally flipped 180 degrees during installation. If the baffles 6 on both sides increase and decrease in length along the same direction, flipping is not required.
[0050] In other embodiments, the blocking pieces 6 are located on both sides of the tube cover 5 in the width direction.
[0051] Both sides of the baffle 6 are provided with foolproof structures to prevent the device from failing due to reverse installation. The foolproof structures include different ridges, colors, etc., which are common knowledge in the art and will not be described in detail in this application.
[0052] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.
Claims
1. A double-row heat exchanger, characterized in that it comprises: A first manifold having a first partition plate arranged along the length direction, the first manifold being divided into left and right chambers by the first partition plate, the left and right chambers respectively having a liquid inlet and a liquid outlet at the same end of the first manifold in the length direction; A second manifold having a second partition plate arranged along the length direction, the second manifold is divided into left and right chambers by the second partition plate, and a notch is provided at one end of the second partition plate away from the liquid inlet and the liquid outlet to connect the left and right chambers; Flat tubes and fins; The first collecting tube and the second collecting tube include a tube body and a tube cover. The tube body is provided with an insertion seam for connecting the flat tubes. Both sides of the tube cover have baffles with a unidirectional increasing or decreasing cross section along the length direction.
2. A double-row heat exchanger according to claim 1, characterized in that: The blocking piece is a sheet body of equal size, and a notch or opening that increases along the length direction is provided on the sheet body.
3. A double-row heat exchanger according to claim 2, characterized in that: Along the length direction, the cross-sectional areas of the baffles on both sides of the tube cover increase gradually.
4. A double-row heat exchanger according to claim 1, characterized in that: Both ends of the pipe cover in the width direction are provided with connecting flanges along the height direction.
5. A double-row heat exchanger according to claim 4, characterized in that: The flanges of the pipe cover extend outwardly in the positive and reverse directions in the height direction to connect the flanges.
6. A double-row heat exchanger according to claim 1, characterized in that: The baffles are located on the same side of the tube cover in the width direction.
7. A double-row heat exchanger according to claim 1, characterized in that: The baffles are located on both sides of the tube cover in the width direction.
8. A double-row heat exchanger according to any one of claims 1 to 7, characterized in that: Both sides of the baffle are provided with foolproof structures.