Heat exchange module, parallel flow heat exchanger and engineering machinery

Abstract

The utility model relates to a heat exchange module, a parallel flow heat exchanger comprising the heat exchange module and engineering machinery comprising the parallel flow heat exchanger. The heat exchange module comprises a heat exchange core body and two collecting pipes. The heat exchange core body comprises a plurality of heat exchange tubes which are arranged side by side; the two collecting pipes are arranged on the two end sides of the heat exchange core correspondingly and communicate with fluid of the heat exchange pipes. The circumferential contour of the inner wall of the collecting pipe is round, and an abutting boss protruding outwards is arranged on the side, opposite to the plane where the heat exchange core is located, of the outer wall of the collecting pipe and used for assembling and positioning the heat exchange module. And a connecting through hole extending from the abutting surface of the abutting boss to the interior of the collecting pipe is formed in at least one abutting boss. According to the heat exchange module, the inner walls of the collecting pipes are kept round, the pressure resistance of the collecting pipes can be guaranteed, and the abutting bosses are arranged on the outer walls of the collecting pipes, so that a plurality of heat exchange modules can be assembled and positioned conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a heat exchange module, a parallel flow heat exchanger comprising the heat exchange module, and engineering machinery comprising the parallel flow heat exchanger. Background Art

[0002] The main structure of the parallel flow heat exchanger is: a header is inserted at both ends of a plurality of flat tubes arranged side by side, and a unit parallel flow type is formed by using the header, or a partition is arranged in the header to segment the header to form a multi-element parallel flow type. The flat tubes of the parallel flow heat exchanger can be made into porous flat tubes to form microchannels. This type of parallel flow heat exchanger using microchannel flat tubes is mainly used in automotive air conditioning systems. Alternatively, turbulent sheets are built into the flat tubes of the parallel flow heat exchanger to meet the resistance and heat dissipation requirements under different flow rates. This type of parallel flow heat exchanger using flat tubes with built-in turbulent sheets is gradually used in various oil radiators of engineering vehicles to reduce costs.

[0003] The biggest feature of parallel flow heat exchanger is efficient heat exchange and compact structure. With the rapid development of new energy industry, parallel flow heat exchanger has gradually expanded to the application of battery thermal management system, which makes the requirements for heat dissipation capacity of heat exchanger continuously increase. Therefore, parallel flow heat exchanger has developed from single row to double row and even multi-row.

[0004] The parallel flow heat exchangers in the prior art are usually single-row and double-row. The manifolds of single-row parallel flow heat exchangers are mostly circular tubes. In order to achieve the mutual circulation of refrigerant between the two rows of double-row parallel flow heat exchangers, the cross-sections of the manifolds at both ends of the heat exchanger are mostly "B"-shaped structures. Compared with circular manifolds, the pressure resistance of the "B"-shaped manifold is slightly worse. In addition, the modular flexibility of the "B"-shaped manifold is not high, and this type of tube cannot be applied to modular installations with more rows. Utility Model Content

[0005] The purpose of the present invention is to solve at least one of the above problems and / or other problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, according to one aspect of the utility model, a heat exchange module is provided, the heat exchange module comprises a heat exchange core and two headers. The heat exchange core comprises a plurality of heat exchange tubes arranged side by side; the two headers are respectively arranged at the two end sides of the heat exchange core and are in fluid communication with the plurality of heat exchange tubes; the circumferential contour of the inner wall of the header is circular, and the header is provided with an outwardly protruding abutment boss on its outer wall on one side relative to the plane where the heat exchange core is located for assembly and positioning of the heat exchange module, and at least one of the abutment bosses is formed with a connecting through hole extending from the abutment surface of the abutment boss to the interior of the header.

[0007] The heat exchange module of the utility model realizes a common design with a heat exchange core and manifolds respectively arranged on both ends of the heat exchange core. When modular expansion is required to meet the heat exchange requirements, the design of multiple flow channels can be realized directly through the combination of multiple heat exchange modules. The inner wall of the manifold remains circular, which can ensure the pressure resistance of the manifold. The outer wall of the manifold is provided with an abutment boss to facilitate the assembly and positioning of multiple heat exchange modules. A connecting through hole is provided on the abutment boss to realize the mutual circulation of the working fluid between each heat exchange module when multiple heat exchange modules are assembled.

[0008] According to an embodiment of the utility model, the two headers are provided with the abutment boss on the same side relative to the plane where the heat exchange core is located, and the connection through hole is formed on the abutment boss of at least one header. This structure is conducive to ensuring the stability of the connection between the two heat exchange modules when the heat exchange module is adjacent to another heat exchange module.

[0009] According to an embodiment of the utility model, the two headers are provided with the abutment bosses on both sides relative to the plane where the heat exchange core is located, and the connection through hole is formed on the abutment boss on at least one side of at least one header. This structure is conducive to ensuring the stability of the connection of the three adjacent heat exchange modules when the heat exchange module is adjacent to the other two heat exchange modules on both sides thereof.

[0010] According to one embodiment of the utility model, at least one header is provided with a partition plate inside thereof to increase the number of tube passes of the working fluid in the heat exchange core. This structure is therefore conducive to the flexible design of the flow of the working fluid in the entire heat exchange module and is conducive to the design of a heat exchange module with higher heat exchange efficiency.

[0011] According to an embodiment of the utility model, the abutment boss extends along the entire longitudinal length of the manifold, so that a connecting through hole for fluid communication between two adjacent heat exchange modules can be conveniently provided at a suitable position of the abutment boss.

[0012] According to an embodiment of the utility model, the abutting surface of the abutting boss is a planar free end surface. The planar abutting surface of the abutting boss is conducive to the positioning, assembly and welding of two adjacent heat exchange modules.

[0013] According to another aspect of the present invention, a parallel flow heat exchanger is provided, which comprises at least one heat exchange module as described above.

[0014] According to one embodiment of the utility model, the parallel flow heat exchanger includes two first heat exchange modules and second heat exchange modules arranged side by side, wherein the abutment boss on the collecting pipe of the first heat exchange module is positioned opposite to the abutment boss on the adjacent collecting pipe of the second heat exchange module, so that the connecting through holes matched in a preset manner are connected to each other to realize fluid communication between the heat exchange modules.

[0015] According to one embodiment of the utility model, the parallel flow heat exchanger includes three side-by-side arranged first heat exchange modules, second heat exchange modules and third heat exchange modules, the second heat exchange module is sandwiched between the first heat exchange module and the third heat exchange module, and the abutment bosses on both sides of the collecting tube of the second heat exchange module are respectively positioned relative to the abutment bosses on the adjacent collecting tubes of the first heat exchange module and the abutment bosses on the adjacent collecting tubes of the third heat exchange module, so that the connecting through holes paired in a preset manner are connected to each other to realize fluid communication between the heat exchange modules.

[0016] The multiple heat exchange modules of the above structure are connected to each other through connecting holes matched in a preset manner. By changing the setting position and quantity of the connecting holes on the abutting boss of the collecting pipe and the combination of the connecting holes and the partition plate, the design of various flow channels of the parallel flow heat exchanger can be realized.

[0017] According to one embodiment of the present invention, the parallel flow heat exchanger comprises an orifice arranged on the header of the heat exchange module for the working fluid to flow into or out of the parallel flow heat exchanger.

[0018] According to another aspect of the utility model, a construction machine is provided, which comprises the parallel flow heat exchanger as described above.

[0019] According to the parallel flow heat exchanger structure of the utility model, a multi-row heat exchanger module is assembled by arranging and combining the heat exchange modules, which not only realizes the circulation of the working fluid between the multi-row heat exchange modules, but also ensures the equivalent pressure resistance of the single-row heat exchange module. At the same time, it avoids the development cost of the manifold mold for products with different rows, has low manufacturing cost, is easy to assemble / expand / reconstruct, can realize modularization and serialization of multi-row heat exchangers, provide a flexible heat exchanger product series, meet various system requirements, and reduce production and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The features and advantages of the present invention will be clearly understood through the detailed description provided below with reference to the accompanying drawings. It should be understood that the following drawings are merely schematic and not necessarily drawn to scale, and thus cannot be regarded as limiting the present invention, wherein:

[0021] Figure 1 A perspective view of a heat exchange module according to a first embodiment of the present utility model is shown.

[0022] Figure 2 Show Figure 1 A top view of the heat exchange module is shown.

[0023] Figure 3 Show Figure 2 The heat exchange module is shown in a cross-sectional view along line AA.

[0024] Figure 4 A perspective view of a parallel flow heat exchanger consisting of two heat exchange modules according to a second embodiment of the present invention is shown.

[0025] Figure 5 Show Figure 4 A top view of a parallel flow heat exchanger is shown.

[0026] Figure 6 Show Figure 4 The first flow path schematic diagram of the parallel flow heat exchanger is shown.

[0027] Figure 7 Show Figure 4 The second flow path schematic diagram of the parallel flow heat exchanger is shown.

[0028] Figure 8 Show Figure 4 The third flow path schematic diagram of the parallel flow heat exchanger is shown.

[0029] Fig. 9 Show Figure 4 Schematic diagram of the fourth flow path of the parallel flow heat exchanger shown.

[0030] Fig.10 A three-dimensional view of a parallel flow heat exchanger consisting of three heat exchange modules according to a third embodiment of the present invention is shown.

[0031] Fig.11 Show Fig.10 A top view of a parallel flow heat exchanger is shown. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described below with reference to the accompanying drawings. In the following description, many specific details are set forth so that those skilled in the art can more fully understand and implement the present invention. However, it is obvious to those skilled in the art that the implementation of the present invention may not have some of these specific details. In addition, it should be understood that the present invention is not limited to the specific embodiments described. On the contrary, any combination of the features and elements described below may be considered to implement the present invention, regardless of whether they relate to different embodiments. Therefore, the following aspects, features, embodiments and advantages are for illustrative purposes only and should not be regarded as elements or limitations of the claims unless clearly stated in the claims.

[0033] In the following, terms such as "first", "second", etc. are used to describe the elements of the present application. These terms are only used to distinguish the various elements, and are not used to limit the nature, order or number of these elements. The terms "including" and "having" are used to express an open-ended inclusive meaning, and mean that there may be additional elements / components in addition to the listed elements / components.

[0034] First embodiment: single-row parallel flow heat exchanger / heat exchange module

[0035] Figures 1 to 3 A single-row parallel flow heat exchanger according to an embodiment of the present invention is shown. The single-row parallel flow heat exchanger is composed of a single heat exchange module 100 .

[0036] The heat exchange module 100 may include a heat exchange core 1 and two headers 2 respectively arranged at both ends of the heat exchange core 1. The heat exchange core 1 may include a plurality of heat exchange tubes 11 arranged side by side along a first direction X, and each heat exchange tube 11 has a first end and a second end along a second direction Y. One of the two headers 2 is arranged at one end of the heat exchange core 1 along the second direction Y and is fluidly connected to the first ends of the plurality of heat exchange tubes 11, and the other of the two headers 2 is arranged at the other end of the heat exchange core 1 along the second direction Y and is fluidly connected to the second ends of the plurality of heat exchange tubes 11. In the above embodiment, the first direction X is the axial direction of the header 2, the second direction Y is perpendicular to the first direction X and is the extension direction of the heat exchange tube 11, the first direction X and the second direction Y jointly define the plane where the heat exchange core 1 is located, and the third direction Z is perpendicular to both the first direction X and the second direction Y, that is, the direction perpendicular to the plane where the heat exchange core 1 is located. Fins may be arranged between the heat exchange tubes to increase the heat exchange area between the airflow and the working fluid in the tube and thus enhance the heat exchange effect.

[0037] According to an exemplary embodiment of the header 2, Figure 2 As shown, the circumferential contour of the inner wall 21 of the header 2 is circular, which is conducive to ensuring the pressure resistance of the header 2 when the working fluid enters the header 2 from the heat exchange tube 11 of the heat exchange core 1. The outer wall 22 of the header 2 is on one side of the header 2 relative to the plane where the heat exchange core 1 is located (for example Figure 2The lower side of the manifold 2 shown in the figure is provided with an outwardly protruding abutment boss 23. The abutment boss 23 can be a table-like structure protruding outwardly to a certain height and shape from the outer wall 22 of the manifold 2, and can be one or more table-like structures protruding on the assembly positioning side of the heat exchange module 100. When the heat exchange module 100 is used in combination with another heat exchange module, the abutment bosses 23 of the two heat exchange modules can abut / engage, which is beneficial to the assembly positioning when the two heat exchange modules are used in combination. The abutment boss 23 can also be a boss structure arranged on the outer wall 22 of the manifold 2 along the entire axial length of the manifold 2. This structure is more conducive to the mass production of the manifold and reduces the manufacturing cost. In addition, it is also convenient for the modular assembly of the heat exchange module. In order to make the heat exchange module 100 and the adjacent heat exchange module fluidly connected in a preset manner, a connecting through hole 24 can be formed at a specific position along the longitudinal direction of the abutment boss 23. The connecting through hole 24 extends from the abutment surface of the abutment boss 23 to the inside of the manifold 2. The abutment surface shown in the figure is a planar free end surface.

[0038] As a first example, the abutment bosses provided on two headers belonging to the same heat exchange module are located on the same side of the plane where the heat exchange core is located. The two heat exchange modules are placed close to each other, and the headers provided with the abutment bosses are placed close to each other along the Z direction, so that the abutment bosses between the two adjacent headers are abutted against each other, and the connecting through holes on the paired abutment bosses are aligned with each other to form a connecting channel. The heat exchange module with the header of the configuration can be used as a single-row heat exchanger (such as Figure 2 As shown) heat exchange module, double row heat exchanger (as shown Figure 5 As shown in the figure) and the heat exchange modules at both ends and the three-row heat exchanger (as shown in the figure) Fig.11 In the heat exchange module assembled as the end-side heat exchange module, a connecting through hole 24 is formed on the abutting boss of at least one header 2.

[0039] As a second example, two headers belonging to the same heat exchange module are provided with abutment bosses on the outer wall on both sides relative to the plane where the heat exchange core is located. Fig.11 The heat exchange module 102 shown in FIG. is sandwiched between the heat exchange module 101 and the heat exchange module 103. That is, in order to ensure the assembly positioning of the heat exchange module 102 and the heat exchange modules on both sides, the two headers 2 of the heat exchange module 102 are on both sides ( Fig.11The upper and lower sides of the heat exchange module 102 shown in the figure are respectively provided with abutment bosses 23. In the heat exchange module assembled as an intermediate heat exchange module, a connecting through hole 24 is formed on the abutment boss 23 on at least one side of at least one collecting pipe 2. This facilitates the formation of fluid communication between the intermediate heat exchange module and the adjacent heat exchange module. In the above embodiment, the abutment bosses 23 all extend along the first direction X over the entire longitudinal length of the outer wall 22 of the collecting pipe 2, and the abutment surface of the abutment boss 23 is planar, which is conducive to the assembly and positioning of two adjacent heat exchange modules (for example, by welding). Connecting through holes 24 are provided on the abutment bosses as needed, so that the connecting through holes are paired in a predetermined manner and form fluid communication during assembly and positioning.

[0040] Second embodiment: Double-row parallel flow heat exchanger

[0041] refer to Figure 4 and Figure 5 As shown, the double-row parallel flow heat exchanger includes two first heat exchange modules 101 and second heat exchange modules 102 arranged side by side. The two headers 2 of the first heat exchange module 101 are respectively provided with abutment bosses 23 on the same side, and the abutment bosses 23 face the side where the second heat exchange module 102 is located. The two headers 2 of the second heat exchange module 102 are respectively provided with abutment bosses 23 on the same side, and the abutment bosses 23 face the side where the first heat exchange module 101 is located. The abutment bosses 23 of the two heat exchange modules 101 and 102 can be tightly abutted, so that the connecting through holes 24 on the abutment bosses 23 can be paired and connected in a preset manner to achieve fluid communication between the heat exchange modules 101 and 102.

[0042] Figures 6 to 9 The diagram shows a plan view of the heat exchange modules 101 and 102 unfolded from both sides of the middle interface, and shows specific examples of the two being paired and connected in four preset ways. In order to more specifically illustrate the structure of the parallel flow heat exchanger, the upper and lower parts shown in the figure are specifically described here, and the actual application includes but is not limited to the specific orientation shown in the figure. For ease of understanding, the two side-by-side headers located on the first end side of the heat exchanger along the Y direction are called first end headers, and the two headers located on the second end side of the heat exchanger along the Y direction are called second end headers. Figures 6 to 9 In the embodiment, the parallel flow heat exchanger may further include an orifice 26 disposed on the header 2 of the heat exchange modules 101 and 102. The orifice 26 may allow the working fluid to flow into or out of the parallel flow heat exchanger. It is understood that for a single-row heat exchanger consisting of a single heat exchange module, the connecting through hole on the abutting boss of the header may also be used as an orifice for the fluid to flow into and out of the single-row heat exchanger.

[0043] Figure 6In the embodiment, the first end header on the first heat exchange module 101 side is provided with an orifice 26 for the working fluid to flow in, and the second end header is provided with a plurality of connecting through holes 24 on the abutting platform 23. The second end header on the second heat exchange module 102 side is correspondingly provided with a plurality of connecting through holes 24 that are matched / jointed with the connecting through holes 24 of the first heat exchange module 101. The first end header on the second heat exchange module 102 side is provided with an orifice 26 for the working fluid to flow out of the parallel flow heat exchanger. Thus, the working fluid enters the first heat exchange module 101 from the orifice 26 of the first heat exchange module 101, enters the second heat exchange module 102 through the matched connecting through holes 24, and then flows out of the parallel flow heat exchanger through the orifice 26 of the second heat exchange module 102.

[0044] Figure 7 In the embodiment, the first end collecting pipe on the side of the first heat exchange module 101 is provided with an orifice 26 for the working fluid to flow in, and the second end collecting pipe is provided with a plurality of connecting through holes 24 at the middle position of the abutting platform 23. The second end collecting pipe on the side of the second heat exchange module 102 is correspondingly provided with connecting through holes 24 that match the connecting through holes 24 of the first heat exchange module 101. A partition plate 3 is provided at a position below the connecting through hole area in the second end collecting pipe on the side of the second heat exchange module 102, and the partition plate 3 extends along a plane perpendicular to the longitudinal direction of the collecting pipe to divide the collecting pipe into an upper cavity with connecting through holes 24 and a lower cavity without connecting through holes. And in the area of ​​the cavity where no connecting through holes are provided, an orifice 26 for the working fluid to flow out of the parallel flow heat exchanger is provided. Compared with Figure 6 For the embodiment shown, Figure 7 The embodiment utilizes the partition plate 3 to increase the number of tube passes of the working fluid in the second heat exchange module 102, which is beneficial to the on-demand design of the flow channel in the heat exchange module and increases the design flexibility.

[0045] exist Figure 7 In the parallel flow heat exchanger, after the working fluid enters the first heat exchange module 101 through the orifice 26 on the first end header on the first heat exchange module 101 side, it enters the upper cavity of the second end header on the second heat exchange module 102 side through the matching connecting through hole 24, and then passes through a part of the heat exchange core 1 (e.g. Figure 7 The upper part of the heat exchange core 1 shown in FIG. 1 ), the first end header on the second heat exchange module 102 side, and another part of the heat exchange core 1 (eg Figure 7 The lower part of the heat exchange core 1 shown in FIG. 1 ) enters the lower cavity of the second end header on the second heat exchange module 102 side, and flows out of the parallel flow heat exchanger through the orifice 26 .

[0046] Figure 8In the embodiment, the first end header on the first heat exchange module 101 side is provided with an orifice 26 for the working fluid to flow in, and a plurality of connecting through holes 24 are provided at the middle position of the abutting platform 23 of the first end header, and a plurality of connecting through holes 24 are provided at the bottom position of the abutting platform 23 of the second end header. The bottom position of the second end header on the second heat exchange module 102 side is correspondingly provided with a connecting through hole 24 that matches the connecting through hole 24 of the second end header on the first heat exchange module 101 side, and an orifice 26 for the working fluid to flow out of the parallel flow heat exchanger is provided on the second end header. The middle position of the first end header on the second heat exchange module 102 side is correspondingly provided with a connecting through hole 24 that matches the connecting through hole 24 of the first end header on the first heat exchange module 101 side.

[0047] exist Figure 8 In the parallel flow heat exchanger, the working fluid enters the first end header on the first heat exchange module 101 side through the orifice 26 on the first heat exchange module 101, and then a part of the working fluid flows into the heat exchange core 1 of the first heat exchange module 101, and the other part of the working fluid enters the second heat exchange module 102 through the connecting through hole 24 of the first end header on the second heat exchange module 102 side. Finally, the two parts of the working fluid merge through the connecting through hole between the second end headers and flow out of the parallel flow heat exchanger through the orifice 26 on the second heat exchange module 102.

[0048] Fig. 9 In the embodiment, a connecting through-hole 24 is provided on the upper portion of the first end manifold on the first heat exchange module 101 side, and a partition plate 3 is provided inside the manifold at a position below the connecting through-hole area, thereby dividing the inner cavity of the manifold into an upper cavity with a connecting through-hole 24 and a lower cavity without a connecting through-hole. The first end manifold is also provided with an orifice 26 for the working fluid to flow in at the position of the lower cavity. A connecting through-hole 24 matching the connecting through-hole 24 of the first heat exchange module 101 is correspondingly provided on the upper portion of the first end manifold on the second heat exchange module 102 side, and a partition plate 3 is provided inside the first end manifold at a position below the connecting through-hole area, thereby dividing the inner cavity of the manifold into an upper cavity with a connecting through-hole 24 and a lower cavity without a connecting through-hole. The first end manifold is also provided with an orifice 26 for the working fluid to flow out at the position of the lower cavity. Compared to Figure 8 For the embodiment shown, Fig. 9 The embodiment uses the partition plate 3 to increase the number of tube passes of the working fluid in the first heat exchange module 102 and the second heat exchange module 102 respectively.

[0049] exist Fig. 9In the parallel flow heat exchanger shown, the working fluid enters the lower cavity of the first end header through the orifice 26 on the side of the first heat exchange module 101, and flows through the lower part of the heat exchange core 1, the second end header, and the upper part of the heat exchange core 1 in sequence, and then enters the upper cavity of the first end header on the side of the second heat exchange module 102 through the upper cavity of the first end header and the matching connecting through hole 24. Finally, it flows through the upper part of the heat exchange core 1, the second end header, and the lower part of the heat exchange core 1 of the second heat exchange module 102 in sequence, and then flows out of the parallel flow heat exchanger through the lower cavity of the first end header and the orifice 26.

[0050] Third embodiment: three-row parallel flow heat exchanger

[0051] refer to Fig.10 and Fig.11 As shown, the three-row parallel flow heat exchanger may include three first heat exchange modules 101, second heat exchange modules 102 and third heat exchange modules 103 arranged side by side. The two headers 2 of the first heat exchange module 101 are respectively provided with abutment bosses 23 on the same side, and the abutment bosses 23 face the side where the second heat exchange module 102 is located. The two headers 2 of the third heat exchange module 103 are respectively provided with abutment bosses 23 on the same side, and the abutment bosses 23 face the side where the second heat exchange module 102 is located. The second heat exchange module 102 is sandwiched between the first heat exchange module 101 and the third heat exchange module 103, and its two headers 2 are respectively provided with abutment bosses 23 on both sides facing the two heat exchange modules 101 and 103 respectively. The abutting bosses 23 of the three heat exchange modules 101 , 102 and 103 can be tightly abutted, so that the connecting through holes 24 on the abutting bosses 23 can be matched and connected in a preset manner to achieve fluid communication between the heat exchange modules 101 , 102 and 103 .

[0052] The specific position setting and preset method of the connecting through hole 24 on the abutting boss 23 can be referred to Figures 6 to 9 The specific settings are shown in the figure and will not be described here.

[0053] Although only combined Figure 7 and Fig. 9 It is shown that the combination of connecting through holes and partition plates in a double-row parallel flow heat exchanger can achieve on-demand design of the flow channel. It can be understood that for single-row parallel flow heat exchangers and three-row parallel flow heat exchangers, a combination of connecting through holes and partition plates can also be used to achieve complex flow channel design.

[0054] In addition, the above description only provides an exemplary description of single-row, double-row and triple-row parallel flow heat exchangers. It is understood that the number of heat exchange modules of the parallel flow heat exchanger is not limited to the examples described above. The specific configuration of the heat exchange module can also be changed according to actual assembly requirements.

[0055] It should be noted that "abutment" in this article includes an arrangement configuration of abutment and / or engagement, and the connection relationship between abutment bosses may include a situation where paired abutment bosses engage with each other. Therefore, it is not limited to the example in which the abutment surface is a planar free end surface in the figure.

[0056] The utility model also provides an engineering machinery comprising the parallel flow heat exchanger.

[0057] Industrial Applicability

[0058] The heat exchange module according to the utility model is particularly suitable for parallel flow heat exchangers of new energy engineering machinery. However, it should be understood that the heat exchange module according to the utility model can also be used for other equipment that requires heat exchange, such as oil cooling systems of engineering vehicles, air conditioning systems of motor vehicles, battery thermal management systems of new energy vehicles, household air conditioners, commercial air conditioners or other equipment in the field of refrigeration.

[0059] by Figures 1 to 3 Taking the illustrated embodiment as an example, when assembling the heat exchange module 100, firstly, a plurality of heat exchange tubes 11 are arranged side by side to assemble into a heat exchange core 1. One of the headers 2 is connected to one end of the heat exchange core 1, so that the header 2 can be fluidically connected to the plurality of heat exchange tubes 11 of the heat exchange core 1. Another header 2 is connected to the other end of the heat exchange core 1, so that the header 2 can be fluidically connected to the plurality of heat exchange tubes 11 of the heat exchange core 1. Thus, the assembly of the heat exchange module 100 is completed.

[0060] After the assembly of multiple heat exchange modules 100 is completed, you can refer to Figure 4 and Figure 5 The double-row parallel flow heat exchanger is assembled as shown. Specifically, the side of the first heat exchange module 101 with the abutting boss 23 is placed opposite to the side of the second heat exchange module 102 with the abutting boss 23, so that the matching connecting through holes 24 on the two heat exchange modules 101 and 102 can correspond one to one. After fixing the corresponding abutting bosses 23, the connecting through holes 24 connected to each other form a passage for fluidly connecting the two heat exchange modules 101 and 102. Figures 6 to 9 The preset manner shown realizes fluid communication between the heat exchange modules 101 and 102.

[0061] right Fig.10 and Fig.11 The assembly steps of the three-row parallel flow heat exchanger shown are based on the assembly steps of the two-row parallel flow heat exchanger, which will not be repeated here.

[0062] As described above, the heat exchange module 100 according to the utility model realizes modular design with a heat exchange core 1 and a manifold 2 respectively arranged on both ends of the heat exchange core 1. When modular expansion is required, the design of various flow channels can be realized directly by combining multiple heat exchange modules 100. The inner wall of the manifold 2 remains circular, which can ensure the pressure resistance of the manifold 2. The outer wall of the manifold 2 is provided with an abutment boss 23, which is convenient for the assembly and positioning of multiple heat exchange modules 100 and increases the structural strength of the manifold. A connecting through hole 24 is provided on the abutment boss 23, which can realize the mutual circulation of the working fluid between each heat exchange core 1 when multiple heat exchange modules 100 are assembled. The manifold 2 is respectively provided with abutment bosses 23 on the same side or both sides relative to the plane where the heat exchange core 1 is located, which is beneficial to the stability of multiple heat exchange modules 100 when they are adjacent to each other. The abutment boss 23 extends along the entire longitudinal length of the manifold 2, which is beneficial to the mass production of the manifold and reduces the manufacturing cost. In addition, it is also convenient to set the connecting through hole 24 at a suitable position. The abutment surface of the abutment boss is preferably planar, which is convenient for the assembly and positioning of the heat exchange module, and is beneficial for welding operations and ensuring welding quality. By arranging a partition plate in the manifold to increase the number of tube passes of the working fluid in the heat exchange core, it is beneficial to increase the heat exchange efficiency of the heat exchanger. In addition, the design of multiple flow channels of the parallel flow heat exchanger can be achieved by changing the setting position and number of the connecting through holes on the abutment boss of the manifold and the combination of the connecting through holes and the partition plate.

[0063] For those skilled in the art, various modifications and variations may be made to the embodiments disclosed above without departing from the scope or spirit of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from the practice of the utility model disclosed in this specification. This specification and the examples disclosed therein should be considered to be illustrative only, and the true scope of the utility model is specified by the appended claims and their equivalents.

Claims

1. A heat exchange module (100), the heat exchange module being used for assembling a parallel flow heat exchanger, comprising: A heat exchange core (1), the heat exchange core (1) comprising a plurality of heat exchange tubes (11) arranged side by side; as well as Two collecting pipes (2) respectively arranged at both end sides of the heat exchange core (1) and fluidically connected to the plurality of heat exchange tubes (11); The invention is characterized in that the circumferential contour of the inner wall of the collecting tube (2) is circular, and the collecting tube (2) is provided with an outwardly protruding abutment boss (23) on its outer wall on a side relative to the plane where the heat exchange core is located for assembling and positioning the heat exchange module (100), and at least one of the abutment bosses (23) is formed with a connecting through hole (24) extending from the abutment surface of the abutment boss (23) to the interior of the collecting tube (2) where it is located.

2. The heat exchange module (100) according to claim 1, characterized in that: The two collecting pipes (2) are provided with the abutment boss (23) on the same side relative to the plane where the heat exchange core (1) is located, and the connection through hole (24) is formed on the abutment boss (23) of at least one collecting pipe (2).

3. The heat exchange module (100) according to claim 1, characterized in that: The two collecting pipes (2) are provided with the abutting bosses (23) on both sides relative to the plane where the heat exchange core (1) is located, and the connecting through hole (24) is formed on the abutting boss (23) on at least one side of at least one collecting pipe (2).

4. The heat exchange module (100) according to claim 1, characterized in that: At least one collecting pipe (2) is provided with a partition plate (3) inside thereof, so as to increase the number of tube passes of the working fluid in the heat exchange core (1).

5. The heat exchange module (100) according to any one of claims 1 to 4, characterized in that: The abutment boss (23) extends over the entire longitudinal length of the collecting pipe (2).

6. The heat exchange module (100) according to any one of claims 1 to 4, characterized in that: The abutting surface of the abutting boss (23) is a planar free end surface.

7. A parallel flow heat exchanger, characterized in that: The method comprises at least one heat exchange module according to any one of claims 1 to 6.

8. The parallel flow heat exchanger according to claim 7, characterized in that: The parallel flow heat exchanger comprises a first heat exchange module (101) and a second heat exchange module (102) arranged side by side, wherein an abutment boss (23) on a header (2) of the first heat exchange module (101) is positioned relative to an abutment boss (23) on an adjacent header (2) of the second heat exchange module (102), so that connecting through holes (24) matched in a preset manner are relative to each other to achieve fluid communication between the heat exchange modules.

9. The parallel flow heat exchanger according to claim 7, characterized in that: The parallel flow heat exchanger comprises three first heat exchange modules (101), a second heat exchange module (102) and a third heat exchange module (103) arranged side by side, the second heat exchange module (102) being sandwiched between the first heat exchange module (101) and the third heat exchange module (103), the abutment bosses (23) on both sides of the manifold (2) of the second heat exchange module (102) being respectively connected and positioned with the abutment bosses (23) on the adjacent manifold (2) of the first heat exchange module (101) and the abutment bosses (23) on the adjacent manifold (2) of the third heat exchange module (103), so that the connection through holes (24) matched in a preset manner are connected to each other to realize fluid communication between the heat exchange modules.

10. The parallel flow heat exchanger according to any one of claims 7 to 9, characterized in that: The parallel flow heat exchanger comprises an orifice (26) arranged on the header (2) of the heat exchange module for allowing the working fluid to flow into or out of the parallel flow heat exchanger.

11. An engineering machine, characterized in that: Comprising a parallel flow heat exchanger according to any one of claims 7 to 10.

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