Binding rod for heat exchanger

Abstract

The bundling rod comprises a first rod body, a second rod body and a connecting piece, the second rod body is arranged at one end of the first rod body, at least part of the connecting piece is located between the first rod body and the second rod body, one of the first rod body and the second rod body is directly or indirectly connected with the connecting piece, and the other of the first rod body and the second rod body is directly or indirectly connected with the connecting piece. The other one of the first rod body and the second rod body is provided with a first containing part, a part of the connecting piece is located in the first containing part, the length direction of the binding rod is defined as the first direction, the height direction of the binding rod is defined as the second direction, and the second direction is perpendicular to the first direction. One of the first rod body and the second rod body can move in the second direction relative to the other rod body. The bundling rod for the heat exchanger has the advantages of being simple in structure and capable of being adjusted in real time according to the actual deformation amount of a product.

Description

Technical Field

[0001] This application relates to the field of heat exchanger production and manufacturing, and specifically to a binding rod for processing heat exchangers. Background Technology

[0002] In related technologies, heat exchangers include several important components such as fins and heat exchange tubes. Typically, after the heat exchanger is assembled, welding is performed to limit the movement of multiple components. To improve the welding reliability of the heat exchanger and reduce the risk of incomplete welds, some limiting devices, such as binding rods, are tied to both sides of the heat exchanger. The heat exchanger and binding rods are fixed and limited by binding straps before being sent to a high-temperature brazing furnace for welding. However, in actual operation, it has been found that the heat exchanger tubes deform after welding, which makes the heat exchanger prone to local deformation and thus affects the reliability of the heat exchanger. Utility Model Content

[0003] Therefore, this application proposes a binding rod for heat exchangers, which helps reduce the risk of local deformation of heat exchangers and improves the reliability of heat exchangers.

[0004] The binding rod for heat exchangers proposed in this application includes:

[0005] A first rod and a second rod, wherein the second rod is located at one end of the first rod;

[0006] A connector, at least a portion of which is located between the first rod and the second rod, wherein one of the first rod and the second rod is directly or indirectly connected to the connector, and the other of the first rod and the second rod has a first receiving portion, wherein a portion of the connector is located in the first receiving portion, the length direction of the binding rod is defined as a first direction, the height direction of the binding rod is defined as a second direction, the second direction being perpendicular to the first direction, and in the assembled state, one of the first rod and the second rod is movable relative to the other rod in the second direction.

[0007] According to the binding rod for heat exchangers proposed in this application, the first rod body and the second rod body are connected by a connector so that the first rod body and the second rod body can move relative to each other. When the binding rod is installed on the heat exchanger, during the processing of the heat exchanger, the processing temperature inside the furnace fluctuates and the temperature difference between the inside and outside of the furnace is also large. The first rod body and / or the second rod body can move with the thermal stress deformation of the heat exchanger, providing a release space for the possible local deformation of the heat exchanger, reducing the local deformation of the heat exchanger, and improving the reliability of the heat exchanger. Attached Figure Description

[0008] Figure 1This is a schematic diagram of the first embodiment of the binding rod for a heat exchanger according to the present application.

[0009] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0010] Figure 3 This is a schematic diagram of a second embodiment of the binding rod for a heat exchanger according to the present application.

[0011] Figure 4 This is a partially enlarged schematic diagram of a second embodiment of the binding rod for a heat exchanger according to an embodiment of this application.

[0012] Figure 5 This is a partially enlarged schematic diagram of a second embodiment of the binding rod for a heat exchanger according to an embodiment of this application.

[0013] Figure 6 This is a partially enlarged schematic diagram of a second embodiment of the binding rod for a heat exchanger according to an embodiment of this application.

[0014] Figure 7 This is a schematic diagram of the first mounting plate of a second embodiment of the binding rod for a heat exchanger according to an embodiment of this application.

[0015] Figure 8 This is a schematic diagram of a third embodiment of the binding rod for a heat exchanger according to the present application.

[0016] Figure 9 yes Figure 8 Enlarged schematic diagram of part B.

[0017] Figure 10 This is a schematic diagram of the fourth embodiment of the binding rod for a heat exchanger according to the present application.

[0018] Figure 11 yes Figure 10 An enlarged schematic diagram of section C.

[0019] Reference numerals: 100, binding rod; 1, first rod body; 2, second rod body; 3, connector; 31, step portion; 41, first pipe wall; 42, first mounting plate; 421, first receiving portion; 43, first cavity; 51, second pipe wall; 52, second mounting plate; 521, second receiving portion; 53, second cavity; 61, first limiting member; 62, second limiting member; 71, first clamping member; 72, second clamping member; 8, extension portion; 9, elastic member. Detailed Implementation

[0020] To better understand the technical solutions of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0021] like Figure 1-11 As shown, the binding rod for a heat exchanger in this embodiment includes a first rod body 1, a second rod body 2, and a connector 3. The second rod body 2 is located at one end of the first rod body 1. At least a portion of the connector 3 is located between the first rod body 1 and the second rod body 2. One of the first rod body 1 and the second rod body 2 is directly or indirectly connected to the connector 3. The other rod body has a first receiving portion 421, and a portion of the connector 3 is located in the first receiving portion 421.

[0022] The length direction of the binding rod 100 is defined as the first direction, and the height direction of the binding rod 100 is defined as the second direction, which is perpendicular to the first direction. In the assembled state, one of the first rod body 1 and the second rod body 2 can move relative to the other rod body in the second direction.

[0023] The binding rod for the heat exchanger in this embodiment of the application is connected by a first rod body 1 and a second rod body 2 through a connector 3, so that the first rod body 1 and the second rod body 2 can move relative to each other. When the binding rod 100 is installed on the heat exchanger, it can move with the thermal stress deformation of the heat exchanger, providing space for the thermal expansion force of the heat exchanger and reducing the local deformation of the heat exchanger. Moreover, the connection between the first rod body 1, the second rod body 2 and the connector 3 is simple and easy to implement.

[0024] Specifically, a first rod 1 extends along a first direction, and both ends of the first rod 1 are provided with a second rod 2 extending along the first direction and connected to the first rod 1 via a connector 3. A first receiving portion 421 is provided near the end of the first rod 1 of the second rod 2, and at least one end of the connector 3 is disposed in the first receiving portion 421 to be connected to the second rod 2, and at least a portion of the other end of the connector 3 is directly or indirectly connected to the first rod 1.

[0025] The indirect connection between connector 3 and the second rod 2 can be understood as connector 3 being connected to the second rod 2 through other connecting components.

[0026] In some embodiments, the first receiving portion 421 may also be provided at the end of the first rod 1, and so on, without further details.

[0027] In some embodiments, the binding rod for the heat exchanger further includes a first limiting member 61, which is directly or indirectly connected to the other end of the connector 3, and one end of the connector 3 is directly or indirectly connected to one of the first rod body 1 and the second rod body 2.

[0028] Specifically, when the first receiving part 421 is located at the end of the second rod 2, one end of the connector 3 is connected to the second rod 2, and the first limiting member 61 is connected to the first rod 1 by directly or indirectly connecting to the other end of the connector 3.

[0029] The other rod in the first rod 1 and the second rod 2 includes a first tube wall 41 and a first mounting plate 42. The other rod in the first rod 1 and the second rod 2 also has a first cavity 43. The wall surrounding the first cavity 43 includes at least a portion of the first tube wall 41 and the first mounting plate 42. The first mounting plate 42 has a first receiving portion 421, which communicates with the first cavity 43. A first limiting member 61 is located in the first cavity 43 and cooperates with the first receiving portion 421. The width direction of the binding rod 100 is a third direction, which is orthogonal to the second direction. The minimum width dimension of the first limiting member 61 is greater than or equal to the maximum width dimension of the first receiving portion 421.

[0030] Specifically, the second rod 2 includes a first pipe wall 41 and a first mounting plate 42. The first pipe wall 41 surrounds a pipe segment with a rectangular outer periphery forming its cross-section. The cavity formed by the first pipe wall 41 around one end of the second rod 2 adjacent to the first rod 1 is a first cavity 43, and the first mounting plate 42 is disposed within the first cavity 43. A first receiving portion 421 is disposed on the first mounting plate 42, and a first limiting member 61 is disposed through the first receiving portion 421 along a first direction. One end of the first limiting member 61 is connected to the first rod 1, and the other end of the first limiting member 61 is connected to the other end of the connecting member 3. One end of the connecting member 3 is connected to the second rod 2. The first mounting plate 42 is rectangular, and the four corners of the first mounting plate 42 are rounded. The first mounting plate 42 is adapted to the inner periphery of the first cavity 43.

[0031] The minimum width of the first limiting member 61 is greater than or equal to the maximum width of the first receiving portion 421, ensuring that the first limiting member 61 is not easily detached from the first receiving portion 421.

[0032] In some embodiments, the outline of the first receiving portion 421 is an elongated hole, the length direction of the first receiving portion 421 is orthogonal to the first direction, and the central axis of the first receiving portion 421 is offset from the central axis of the first mounting plate 42.

[0033] Specifically, the first receiving portion 421 extends along a third direction so that the first limiting member 61 can move along a third direction. When the heat exchanger generates thermal stress, it can push the first rod 1 or the second rod 2 to move along the length direction of the first receiving portion 421.

[0034] In some embodiments, one of the first rod 1 and the second rod 2 includes a second tube wall 51 and a second mounting plate 52. The first rod 1 and the second rod 2 also include a second cavity 53. The wall surrounding the second cavity 53 includes at least a portion of the second tube wall 51 and the second mounting plate 52. The second mounting plate 52 has a second receiving portion 521. One end of the connector 3 is located in the second receiving portion 521. The other end of the connector 3 is directly or indirectly connected to the first limiting member 61.

[0035] Specifically, the first rod 1 includes a second pipe wall 51 and a second mounting plate 52. The second pipe wall 51 surrounds a pipe segment with a rectangular outer perimeter forming the cross-section. The cavity formed by the second pipe wall 51 around one end of the first rod 1 adjacent to the second rod 2 is a second cavity 53, and the second mounting plate 52 is disposed within the second cavity 53. A second receiving portion 521 is disposed on the second mounting plate 52, and the other end of the connector 3 is located within the second receiving portion 521 to be directly or indirectly connected to the first rod 1. One end of the connector 3 is directly or indirectly connected to the first limiting member 61.

[0036] The second mounting plate 52 is rectangular, with rounded corners, and is adapted to the inner circumferential surface of the second cavity 53.

[0037] In some embodiments, the connector 3 includes a stepped portion 31 with a stepped surface facing the second receiving portion 521, and the stepped surface of the stepped portion 31 can abut against the end face of the second mounting plate 52.

[0038] Specifically, the step portion 31 is located at the other end of the connector 3. The step portion 31 can pass through the second receiving portion 521. When the step portion 31 is completely located in the second cavity 53 through the second receiving portion 521, the step surface of the step portion 31 abuts against the end face of the second mounting plate 52.

[0039] In some embodiments, the binding rod 100 further includes a first clamping member 71 and a second clamping member 72, the first clamping member 71 and the second clamping member 72 are located in the first cavity 43, the first clamping member 71 is located on one side of the first limiting member 61, the second clamping member 72 is located on the other side of the first limiting member 61, the first limiting member 61 is located between the first clamping member 71 and the second clamping member 72, the second clamping member 72 is slidably engaged with the first limiting member 61, the first clamping member 71 is slidably engaged with the first limiting member 61, and the first limiting member 61 is capable of moving upward in a third direction.

[0040] Specifically, the first clamping member 71 and the second clamping member 72 are disposed on the side of the first mounting plate 42 opposite to the first rod 1. The first clamping member 71 and the second clamping member 72 are respectively located on both sides of the first receiving portion 421 and arranged opposite to each other along the second direction. Both the first clamping member 71 and the second clamping member 72 extend along the third direction. The arrangement of the first clamping member 71 and the second clamping member 72 makes the first mounting plate 42 securely installed in the first cavity 43 and less prone to rotation, thereby preventing the second rod 2 from rotating relative to the first rod 1.

[0041] The first clamping member 71 and the second clamping member 72 have the same structure, and the first clamping member 71 will be used as an example for description. The first clamping member 71 extends along the first direction, and the cross-sections of the sides of the first clamping member 71 away from the second clamping member 72 at both ends in the third direction are rounded, and the rounded corners on the first clamping member 71 extend along the first direction.

[0042] In some embodiments, the first receiving portion 421 is a groove, and one end of the connector 3 is located in the groove.

[0043] Specifically, when the first receiving part 421 is located at the end of the second rod 2, the slide extends in a third direction, one end of the slide is sealed, and the other end of the slide is open. The other end of the connector 3 is connected to the first rod 1, and one end of the connector 3 is inserted into the slide from the other end of the slide and can move in the slide along the extension direction of the slide, thereby realizing the relative movement between the first rod 1 and the second rod 2.

[0044] In some embodiments, when the first receiving portion 421 is located at the end of the first rod 1, the other end of the connector 3 is connected to the second rod 2, and one end of the connector 3 is connected to the first rod 1 through a groove to realize relative movement between the first rod 1 and the second rod 2.

[0045] In some embodiments, the binding rod for the heat exchanger further includes a second limiting member 62, which is disposed at at least one end of the connector 3. At least a portion of the second limiting member 62 is located within the first receiving portion 421, and one of the first rod body 1 and the other rod body 2 can move relative to each other along the extending direction of the first receiving portion 421.

[0046] Specifically, the second limiting member 62 is provided at one end of the connecting member 3. The second limiting member 62 enters the slide groove from the other end of the slide groove and can slide in the slide groove along a third direction. The second limiting member 62 is adapted to the slide groove to realize the relative movement between the first rod 1 and the second rod 2.

[0047] Specifically, the second limiting member 62 has a rectangular cross-section, and the first slide groove has a T-shaped cross-section, so that the connecting member 3 and the second limiting member 62 can be disposed within the slide groove. The cross-sections of the second limiting member 62 and the first slide groove are not limited to the above-described cases, such as trapezoidal shapes.

[0048] In some embodiments, the first rod 1 has an extension 8 extending in the length direction of the first rod 1, the second rod 2 is arranged opposite to the extension 8 in a second direction, the connector 3 connects the extension 8 and the second rod 2, and one of the second rod 2 and the extension 8 is movable relative to the other in the second direction.

[0049] Specifically, the extension 8 is connected to one side of the first rod 1 in the second direction and extends along the first direction. The second rod 2 is located on the other side of the first rod 1 in the second direction and is spaced apart from the other side of the first rod 1 in the second direction. The second rod 2 is connected to the first rod 1 by the connector 3, so that the first rod 1 and the second rod 2 can move relative to each other.

[0050] In some embodiments, at least a portion of the connector 3 is located between the second rod 2 and the extension 8, one end of the connector 3 is limitedly connected to the second rod 2, and the other end of the connector 3 passes through the extension 8 and is slidably engaged with the extension 8. The binding rod for the heat exchanger also includes an elastic element 9, at least a portion of which is sleeved on the connector 3 and located between the second rod 2 and the extension 8.

[0051] Specifically, one end of the connector 3 is connected to the second rod 2, and the other end of the connector 3 passes through the extension 8 along the second direction. The elastic member 9 is wrapped around the connector 3 and located between the extension 8 and the second rod 2, so that the first rod 1 and the second rod 2 can move relative to each other along the extension direction of the connector 3. Moreover, the elastic member 9 makes it easy for the first rod 1 and the second rod 2 to return to their original shape when they are not subjected to thermal stress.

[0052] The connector 3 for the binding rod of the heat exchanger in this application embodiment has a variety of different structural forms, and the way the connector 3 of each structural form connects the first rod body 1 and the second rod body 2 is also different, which makes the structural form of the binding rod 100 diverse and improves the applicability of the binding rod 100.

[0053] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0054] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present application.

Claims

1. A binding bar for a heat exchanger, characterized in that, The bundle rod (100) comprises: a first rod body (1) and a second rod body (2), the second rod body (2) being arranged at one end of the first rod body (1); a connecting piece (3), at least part of the connecting piece (3) being located between the first rod body (1) and the second rod body (2), one of the first rod body (1) and the second rod body (2) being directly or indirectly connected with the connecting piece (3), the other of the first rod body (1) and the second rod body (2) having a first accommodating portion (421), part of the connecting piece (3) being located in the first accommodating portion (421), a length direction of the bundle rod (100) being defined as a first direction, a height direction of the bundle rod (100) being defined as a second direction, the second direction being perpendicular to the first direction, in an assembled state, one of the first rod body (1) and the second rod body (2) being movable relative to the other in the second direction.

2. The binding bar for a heat exchanger according to claim 1, characterized by, The bundle rod (100) further comprises a first limiting piece (61), the first limiting piece (61) being directly or indirectly connected with the other end of the connecting piece (3), one end of the connecting piece (3) being directly or indirectly connected with one of the first rod body (1) and the second rod body (2), the other of the first rod body (1) and the second rod body (2) comprising a first tube wall (41) and a first mounting plate (42), the other of the first rod body (1) and the second rod body (2) further having a first cavity (43), a wall surrounding the first cavity (43) comprising at least part of the first tube wall (41) and the first mounting plate (42), the first mounting plate (42) having the first accommodating portion (421), the first accommodating portion (421) being in communication with the first cavity (43), the first limiting piece (61) being located in the first cavity (43) and cooperating with the first accommodating portion (421), a width direction of the bundle rod (100) being defined as a third direction, the third direction being orthogonal to the second direction, a minimum width dimension of the first limiting piece (61) being greater than or equal to a maximum width dimension of the first accommodating portion (421).

3. The binding bar for heat exchangers according to claim 2, characterized in that, The first accommodating portion (421) has an outline of an elongated hole, a length direction of the first accommodating portion (421) being orthogonal to the first direction, a central axis of the first accommodating portion (421) being offset from a central axis of the first mounting plate (42). The first accommodating portion (421) has an outline of an elongated hole, a length direction of the first accommodating portion (421) being orthogonal to the first direction, a central axis of the first accommodating portion (421) being offset from a central axis of the first mounting plate (42).

4. The binding bar for heat exchangers according to any one of claims 2 to 3, characterized in that, One of the first rod body (1) and the second rod body (2) comprises a second tube wall (51) and a second mounting plate (52), one of the first rod body (1) and the second rod body (2) further comprises a second cavity (53), the wall surrounding the second cavity (53) comprises at least part of the second tube wall (51) and the second mounting plate (52), the second mounting plate (52) has a second accommodating portion (521), one end of the connecting piece (3) is located in the second accommodating portion (521), the other end of the connecting piece (3) is directly connected or indirectly connected with the first limiting piece (61).

5. The bundle bar for heat exchangers according to claim 4, characterized in that The connecting piece (3) comprises a stepped portion (31) with a stepped surface facing the second accommodating portion (521), and the stepped surface of the stepped portion (31) can abut against the end surface of the second mounting plate (52).

6. The bundle bar for heat exchangers according to any one of claims 2 to 3, characterized in that The bundling rod (100) further comprises a first clamping piece (71) and a second clamping piece (72), the first clamping piece (71) and the second clamping piece (72) are located in the first cavity (43), the first clamping piece (71) is located on one side of the first limiting piece (61), the second clamping piece (72) is located on the other side of the first limiting piece (61), the first limiting piece (61) is located between the first clamping piece (71) and the second clamping piece (72), the second clamping piece (72) is in sliding fit with the first limiting piece (61), the first clamping piece (71) is in sliding fit with the first limiting piece (61), and the first limiting piece (61) can move in the third direction.

7. The bundle bar for heat exchanger according to claim 1, wherein The first accommodating portion (421) is a sliding groove, and one end of the connecting piece (3) is located in the sliding groove.

8. The bundle bar for heat exchangers according to claim 7, characterized in that The bundling rod (100) further comprises a second limiting piece (62), the second limiting piece (62) is arranged at least one end of the connecting piece (3), at least part of the second limiting piece (62) is located in the first accommodating portion (421), and one of the first rod body (1) and the second rod body (2) and the other rod body can move relatively along the extension direction of the first accommodating portion (421).

9. The bundle bar for heat exchanger according to claim 1, wherein The first rod body (1) has an extension portion (8) extending in the length direction of the first rod body (1), the second rod body (2) is arranged opposite to the extension portion (8) in the second direction, the connecting piece (3) connects the extension portion (8) and the second rod body (2), and one of the second rod body (2) and the extension portion (8) can move relative to the other in the second direction.

10. The bundle bar for heat exchangers according to claim 9, characterized in that At least part of the connecting piece (3) is located between the second rod body (2) and the extension portion (8), one end of the connecting piece (3) is limitingly connected with the second rod body (2), and the other end of the connecting piece (3) penetrates through the extension portion (8) and is in sliding fit with the extension portion (8); The binding rod for the heat exchanger further comprises elastic members (9), at least part of the elastic members (9) are sleeved on the connecting members (3) and located between the second rod bodies (2) and the extension portions (8).

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