Embedded plate-fin heat exchanger structure

Abstract

The present invention discloses an embedded plate-fin heat exchanger structure, which belongs to the technical field of heat exchange structures. A first flow space for a first heat exchange medium is formed inside a heat exchange tube of a first heat exchange unit of the embedded plate-fin heat exchanger structure, a chamber is provided inside a heat exchange shell of a second heat exchange unit, the first heat exchange unit is embedded in the chamber of the heat exchange shell, and a second flow space for a second heat exchange medium is formed between the outer wall surface of the first heat exchange unit and the inner wall surface of the shell. Since the front of the heat exchange tube is vertically arranged in the diversion port and the confluence port, the first heat exchange medium flows evenly, and since the first heat exchange unit is detachably embedded in the second heat exchange unit, not only the second heat exchange medium can flow around the first heat exchange medium, thus improving the heat exchange efficiency, but also the first heat exchange unit or the second heat exchange unit can be designed in a standardized manner, and when there are different needs, only the heat exchange shell of the first heat exchange unit or the second heat exchange unit needs to be replaced, and the transformation cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchange structures, and in particular to an embedded plate-fin heat exchanger structure. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. Plate-fin heat exchangers are widely used in various industrial equipment that require heat exchange due to their compact structure and wide range of applications. However, due to the layered arrangement of the flow paths of existing plate-fin heat exchangers, their production is difficult and the production cost is high. In addition, when there are two fluid heat exchange media in the plate-fin heat exchanger, when the two different heat exchange media flow in the layered flow paths, there will be problems such as uneven medium diversion and low heat exchange efficiency.

[0003] Therefore, it is a technical problem that urgently needs to be solved to study a heat exchanger that is suitable for heat exchange between two fluid media, has low manufacturing difficulty, uniform flow distribution, and high heat exchange efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an embedded plate-fin heat exchanger structure, which has low manufacturing difficulty, uniform flow distribution, and can ensure efficient heat exchange between two fluid media.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] An embedded plate-fin heat exchanger structure includes a first heat exchange unit and a second heat exchange unit, wherein the first heat exchange unit includes an inlet and outlet structure and a plurality of heat exchange tubes, wherein the inlet and outlet structure is provided with a first medium inlet, a first medium outlet, a plurality of diversion ports and a plurality of confluence ports, wherein the plurality of heat exchange tubes are arranged one by one between the plurality of diversion ports and the plurality of confluence ports, wherein one end of each heat exchange tube is inserted into the corresponding diversion port, and the other end is inserted into the corresponding confluence port, wherein a first flow space for a first heat exchange medium is formed inside the heat exchange tube, and the first heat exchange medium enters the inlet and outlet structure from the first medium inlet, The first heat exchange medium in the plurality of heat exchange tubes flows back into the inlet and outlet structure through the plurality of confluence ports and flows out of the inlet and outlet structure through the first medium outlet; the second heat exchange unit comprises a heat exchanger shell, the interior of the heat exchanger shell comprises a chamber, the first heat exchange unit is detachably embedded in the chamber, a second flow space for the second heat exchange medium is formed between the outer wall surface of the first heat exchange unit and the inner wall surface of the heat exchanger shell, and a second medium inlet and a second medium outlet communicating with the second flow space are provided on the heat exchanger shell.

[0007] Preferably, the inlet and outlet structure includes an inlet structure and an outlet structure, the inlet structure includes an inlet water chamber and a first inlet pressure plate connected to each other, a diversion chamber is formed inside the inlet water chamber, and the inlet water chamber is provided with a diversion port connecting the diversion chamber with one end of the heat exchange tube, and the first medium inlet is arranged on the first inlet pressure plate; the outlet structure includes an outlet water chamber and a first outlet pressure plate connected to each other, a confluence chamber is formed inside the outlet water chamber, and the outlet water chamber is provided with a confluence port connecting the confluence chamber with the other end of the heat exchange tube, and the first medium outlet is arranged on the first outlet pressure plate.

[0008] Preferably, two through holes are provided on the heat exchanger shell, and the two through holes include a first through hole and a second through hole arranged on different sides of the heat exchanger shell; the first inlet pressure plate passes through the first through hole and is placed outside the heat exchanger shell, and the first outlet pressure plate passes through the second through hole and is placed outside the heat exchanger shell.

[0009] Preferably, the plurality of heat exchange tubes are arranged in rows and columns.

[0010] Preferably, the inlet and outlet structure includes an inlet and outlet water chamber and an inlet and outlet pressure plate connected to each other, a partition is arranged inside the inlet and outlet water chamber, the partition divides the internal space of the inlet and outlet water chamber into a diversion chamber and a confluence chamber, and the inlet and outlet water chamber is provided with the diversion port connecting the diversion chamber with the inlet of the heat exchange tube and the confluence port connecting the confluence chamber with the outlet of the heat exchange tube; the first medium inlet and the first medium outlet are both arranged on the inlet and outlet pressure plate, and the first medium inlet is connected to the diversion chamber, and the first medium outlet is connected to the confluence chamber.

[0011] Preferably, the heat exchange tube includes an inlet-side heat exchange tube and an outlet-side heat exchange tube, one end of the inlet-side heat exchange tube is connected to the diversion chamber through the diversion port, and one end of the outlet-side heat exchange tube is connected to the confluence chamber through the confluence port; the first heat exchange unit also includes a reflux water chamber, a reflux chamber is formed inside the reflux water chamber, a reversing inlet connecting the reflux chamber and the other end of the inlet-side heat exchange tube is provided on the reflux water chamber, and a reversing outlet connecting the reflux chamber and the other end of the outlet-side heat exchange tube is also provided on the reflux water chamber.

[0012] Preferably, a through hole is provided on the heat exchanger shell, and the inlet and outlet pressure plates pass through the through hole and are arranged outside the heat exchanger shell.

[0013] Preferably, the second medium inlet and the second medium outlet are located on the same side of the second heat exchange unit; a baffle is further provided inside the heat exchanger shell, the baffle is located between the second medium inlet and the second medium outlet, and one end of the baffle close to the second medium inlet and the second medium outlet is seamlessly connected to an inner wall of one side of the heat exchanger shell, and the other end of the baffle away from the second medium inlet and the second medium outlet is spaced from the inner wall of the other side of the heat exchanger shell, so as to form a curved first flow space inside the heat exchanger shell.

[0014] Preferably, the plurality of heat exchange tubes are arranged in rows and columns, and the baffle is disposed between two adjacent rows of the heat exchange tubes.

[0015] Preferably, the first heat exchange unit further includes heat exchange fins, and the heat exchange fins are arranged on the outer wall surface of the heat exchange tube.

[0016] Beneficial effects of the present invention:

[0017] The present invention provides an embedded plate-fin heat exchanger structure, which includes a first heat exchange unit and a second heat exchange unit. The second heat exchange unit includes a heat exchanger shell, the heat exchanger shell has a chamber inside, and the heat exchanger shell is provided with a second medium inlet and a second medium outlet. The first heat exchange unit includes an inlet and outlet structure and a plurality of heat exchange tubes. The inlet and outlet structure is provided with a first medium inlet, a first medium outlet, a plurality of flow diversion ports and a plurality of flow confluence ports. The plurality of heat exchange tubes are arranged one by one between the plurality of flow diversion ports and the plurality of flow confluence ports. One end of each heat exchange tube Insert it into the corresponding branch port, and the other end is inserted into the corresponding confluence port, a first flow space for the first heat exchange medium is formed inside the heat exchange tube, the first heat exchange medium enters the inlet and outlet structure from the first medium inlet, and is diverted to the multiple heat exchange tubes through multiple branch ports, the first heat exchange medium in the multiple heat exchange tubes flows back to the inlet and outlet structure from the multiple confluence ports, and flows out of the inlet and outlet structure through the first medium outlet, the first heat exchange unit is detachably embedded in the chamber of the heat exchanger shell, and a second flow space for the second heat exchange medium is formed between the outer wall surface of the first heat exchange unit and the inner wall surface of the shell. The embedded plate-fin heat exchanger structure is relatively easy to manufacture, and since the front of the heat exchange tube is vertically arranged on the diversion port and the confluence port, the first heat exchange medium flows evenly, and since the first heat exchange unit is detachably embedded in the second heat exchange unit, not only can the second heat exchange medium flow around the first heat exchange medium, increasing the heat exchange area and improving the heat exchange efficiency, but the first heat exchange unit or the second heat exchange unit can be designed in a standardized manner. When there are different needs, only the heat exchanger shell of the first heat exchange unit or the second heat exchange unit needs to be replaced, and the modification cost is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a first heat exchanger provided by the present invention having a curved first heat exchange unit and an I Flow second heat exchange unit;

[0019] Figure 2 is a cross-sectional view of a first heat exchanger provided by the present invention having a curved first heat exchange unit and an I Flow second heat exchange unit;

[0020] Figure 3 It is an exploded view of a first heat exchanger provided by the present invention having a curved first heat exchange unit and an I Flow second heat exchange unit;

[0021] Figure 4 It is a schematic structural diagram of the curved first heat exchange unit provided by the present invention after the heat exchange fins are removed;

[0022] Figure 5 It is a schematic structural diagram of the heat exchange tubes and heat exchange fins of the curved first heat exchange unit provided by the present invention;

[0023] Figure 6 It is a structural schematic diagram of the inlet and outlet structure of the curved first heat exchange unit provided by the present invention;

[0024] Figure 7 It is a structural schematic diagram of a second heat exchanger provided by the present invention having a curved first heat exchange unit and a curved second heat exchange unit;

[0025] Figure 8 is a cross-sectional view of a second heat exchanger provided by the present invention having a first curvilinear heat exchange unit and a second curvilinear heat exchange unit;

[0026] Fig. 9 is an exploded view of a second heat exchanger provided by the present invention having a first curvilinear heat exchange unit and a second curvilinear heat exchange unit;

[0027] Fig.10 It is a schematic structural diagram of the I Flow type first heat exchange unit provided by the present invention after removing the heat exchange fins;

[0028] Fig.11 It is a cross-sectional view of the I Flow type first heat exchange unit provided by the present invention after removing the heat exchange fins;

[0029] Fig.12 It is an exploded view of the I Flow type first heat exchange unit provided by the present invention after the heat exchange fins are removed.

[0030] In the figure:

[0031] 100, first heat exchange unit; 101, first medium inlet; 102, first medium outlet; 103, diversion port; 104, confluence port;

[0032] 110, heat exchange tube; 111, heat exchange tube on the inlet side; 112, heat exchange tube on the outlet side;

[0033] 120, inlet and outlet structure; 121, inlet and outlet water chamber; 122, inlet and outlet pressure plate; 123, diversion chamber; 124, confluence chamber; 125, partition; 126, inlet structure; 1261, inlet water chamber; 1262, first inlet pressure plate; 127, outlet structure; 1271, outlet water chamber; 1272, first outlet pressure plate;

[0034] 130, reflux water chamber; 1301, reflux chamber; 1302, reversing inlet; 1303, reversing outlet;

[0035] 140. Heat exchange fins;

[0036] 150, baffle;

[0037] 200, second heat exchange unit; 201, second medium inlet; 202, second medium outlet; 203, through hole;

[0038] 210. Heat exchanger housing. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The present invention provides an embedded plate-fin heat exchanger structure, which is used to achieve heat exchange between two heat exchange media, that is, to transfer part of the heat of the heat exchange medium with a higher temperature to the heat exchange medium with a lower temperature, thereby achieving the purpose of cooling the heat exchange medium with a higher temperature and heating the heat exchange medium with a lower temperature. In order to facilitate the distinction between the two heat exchange media, the first heat exchange medium and the second heat exchange medium are referred to below, and the first heat exchange medium and the second heat exchange medium are not limited to a specific medium.

[0043] like Figures 1 to 12 As shown, the embedded plate-fin heat exchanger structure includes a first heat exchange unit 100 and a second heat exchange unit 200, wherein the first heat exchange unit 100 is mainly used to form a flow path for accommodating a first heat exchange medium, and the second heat exchange unit 200 is mainly used to form a flow path for accommodating a second heat exchange medium. Specifically, the first heat exchange unit 100 includes an inlet and outlet structure 120 and a plurality of heat exchange tubes 110, and the inlet and outlet structure 120 is provided with a first medium inlet 101, a first medium outlet 102, a plurality of diverter ports 103 and a plurality of confluence ports 104, and the plurality of heat exchange tubes 110 are arranged one by one between the plurality of diverter ports 103 and the plurality of confluence ports 104, and one end of each heat exchange tube 110 is inserted into the corresponding diverter port 103, and the other end is inserted into the corresponding confluence port 104, and a first flow space for accommodating the first heat exchange medium and allowing the first heat exchange medium to flow is formed inside the heat exchange tube 110. The first heat exchange medium enters the inlet and outlet structure 120 from the first medium inlet 101, and is diverted to the multiple heat exchange tubes 110 through the multiple diversion ports 103. The first heat exchange medium flowing in the first flow space of the multiple heat exchange tubes 110 flows back to the inlet and outlet structure 120 through the multiple confluence ports 104, and flows out of the inlet and outlet structure 120 through the first medium outlet 102, thereby forming a flow path of the first heat exchange medium. The second heat exchange unit 200 includes a heat exchanger shell 210, and the heat exchanger shell 210 has a chamber inside. The first heat exchange unit 100 is detachably embedded in the chamber. A second flow space of the second heat exchange medium is formed between the outer wall surface of the first heat exchange unit 100 and the inner wall surface of the heat exchanger shell 210. The heat exchanger shell 210 is provided with a second medium inlet 201 and a second medium outlet 202. The second medium inlet 201 and the second medium outlet 202 are respectively connected to the second flow space, thereby forming a flow path of the second heat exchange medium.

[0044] The first heat exchange medium enters the first flow space inside the heat exchange tube 110 through the first medium inlet 101 and the diversion port 103 and flows in the first flow space. At the same time, the second heat exchange medium enters the second flow space between the inner wall surface of the heat exchanger shell 210 and the first heat exchange unit 100 through the second medium inlet 201 and flows around the first heat exchange unit 100 in the second flow space. During this process, the first heat exchange medium and the second heat exchange medium are fully heat exchanged. After the heat exchange is completed, the first heat exchange medium flows out from the first medium outlet 102, and the second heat exchange medium flows out from the second medium outlet 202.

[0045] Compared with the traditional plate-fin heat exchanger in which the flow paths of the two heat exchange media are evenly arranged in layers, which leads to the difficulty of heat exchanger manufacturing, uneven flow distribution of different heat exchange media, and low heat exchange efficiency, the embedded plate-fin heat exchanger structure provided by the present invention embeds the first heat exchange unit 100 as a whole inside the heat exchanger shell 210 of the second heat exchange unit 200, so that the second heat exchange unit 200 does not need to adopt a layered arrangement structure, which greatly reduces the difficulty and cost of manufacturing the heat exchanger. In addition, since the first heat exchange unit 100 is arranged as a whole inside the heat exchanger shell 210 of the second heat exchange unit 200, the second heat exchange medium can fully contact with the first heat exchange unit 100, and the heat exchange area is large, which is conducive to the heat exchange between the second heat exchange medium and the first heat exchange medium in the first heat exchange unit 100, and the heat exchange efficiency is high, which greatly improves the heat exchange effect. In addition, since the front side of the heat exchange tube 110 is vertically arranged on the branch port 103 and the confluence port 104 , the first heat exchange medium flows evenly and smoothly, and the heat exchange effect is better.

[0046] It should be noted that in the present invention, the first heat exchange unit 100 is of a horizontal flow type, which is embedded in the second heat exchange unit 200. And because the first heat exchange unit 100 can be detachably connected to the inside of the second heat exchange unit 200, the first heat exchange unit 100 can be designed in a standardized manner, that is, the first flow space formed in the first heat exchange unit 100 that allows the first heat exchange medium to flow can be designed in a standardized manner. When there are different performance or structural requirements, it is only necessary to redesign and manufacture the heat exchanger shell 210 of the second heat exchange unit 200 according to the requirements, and then embed the first heat exchange unit 100 of standardized design into the new heat exchanger shell 210 to meet the use requirements, thereby reducing the design cost and manufacturing cost and improving the design efficiency and manufacturing efficiency. Of course, the second heat exchange unit 200 can also be designed in a standardized manner, that is, the second flow space formed in the second heat exchange unit 200 that allows the second heat exchange medium to flow can be designed in a standardized manner. When there are requirements for different performance or structure, it is only necessary to redesign and manufacture the first heat exchange unit 100 according to the requirements, and then embed the new first heat exchange unit 100 into the standardized heat exchanger shell 210. In addition, the flow channel in the first flow space that allows the first heat exchange medium to flow and the flow channel in the second flow space that allows the second heat exchange medium to flow are not limited to single-flow or double-flow, and multiple-flow can also be made according to different requirements.

[0047] In some embodiments, different flow patterns can also be set for the embedded plate-fin heat exchanger structure, such as Figures 10 to 12 The first heat exchange unit 100 of I Flow type is shown, and the inlet and outlet structure 120 includes an inlet structure 126 and an outlet structure 127 which are separately arranged. The inlet structure 126 and the outlet structure 127 are respectively arranged at the two ends of the heat exchange tube 110, and the inlet structure 126 specifically includes an inlet water chamber 1261 and a first inlet pressure plate 1262 which are connected to each other. Optionally, the inlet water chamber 1261 can be a rectangular box, a round box or a box body with other shapes and hollow inside. In a more specific embodiment, a rectangular box is selected. The hollow part inside the inlet water chamber 1261 forms a diversion chamber 123, and the inlet water chamber 1261 is provided with a diversion port 103 which connects the diversion chamber 123 with one end of the heat exchange tube 110, and the first medium inlet 101 is arranged on the first inlet pressure plate 1262. The shape of the first inlet pressure plate 1262 can be a regular tube such as a round tube or a square tube, or a special-shaped tube, and the first medium inlet 101 can be a circular hole, a square hole or other special-shaped holes.

[0048] The shapes of the outlet structure 127 and the inlet structure 126 may be the same or different, and preferably the same structure is used to reduce manufacturing difficulty and manufacturing cost and improve manufacturing efficiency. Figures 10 to 12As shown, the outlet structure 127 includes an outlet water chamber 1271 and a first outlet pressure plate 1272 connected to each other, the outlet water chamber 1271 is a square box, the hollow structure inside the outlet water chamber 1271 forms a confluence chamber 124, and the outlet water chamber 1271 is provided with a confluence port 104 connecting the confluence chamber 124 and the other end of the heat exchange tube 110, and the first medium outlet 102 is provided on the first outlet pressure plate 1272. The shape of the first outlet pressure plate 1272 can be a regular tube such as a round tube, a square tube, or a special-shaped tube, and the first medium outlet 102 can be a circular hole, a square hole, or other special-shaped holes.

[0049] Optionally, the heat exchange tube 110 may be a porous extruded flat tube or a porous folded flat tube, etc. The heat exchange tube 110 is an existing pipe fitting, which is easy to purchase and has advantages such as a high yield rate. There are multiple heat exchange tubes 110, and the multiple heat exchange tubes 110 are arranged in rows and columns.

[0050] In the present invention, if Fig.12 As shown, two rows of heat exchange tubes 110 are provided, and each row of heat exchange tubes 110 includes a plurality of heat exchange tubes 110. In order to connect the plurality of heat exchange tubes 110, the number of the diverter ports 103 and the number of the confluence ports 104 are both plural, and the plurality of diverter ports 103 are connected to the inlets of the plurality of heat exchange tubes 110 in a one-to-one correspondence, and the plurality of confluence ports 104 are connected to the outlets of the plurality of heat exchange tubes 110 in a one-to-one correspondence, that is, a single heat exchange tube 110 is inserted into the diverter ports 103 and the confluence ports 104. Optionally, the diverter ports 103 and the confluence ports 104 are both waist-shaped ports, and the ends of the heat exchange tubes 110 can be correspondingly plugged into the diverter ports 103 or the confluence ports 104, so as to realize the connection between the heat exchange tubes 110 and the diverter chambers 123 and the confluence chambers 124. Of course, if the cross-section of the heat exchange tube 110 is in other shapes, the branch port 103 and the confluence port 104 can be set correspondingly according to the cross-section shape of the heat exchange tube 110 .

[0051] Continue to refer to Fig.11 As shown, the flow process of the first heat exchange medium in the first heat exchange unit 100 is as follows: the first heat exchange medium enters the diversion chamber 123 of the inlet water chamber 1261 through the first inlet pressure plate 1262, and then is diverted from the inlet end of the heat exchange tube 110 of the diversion chamber 123 to multiple heat exchange tubes 110. The first heat exchange medium flows in the multiple heat exchange tubes 110 and converges to the confluence chamber 124 of the outlet water chamber 1271 through the outlet end of the heat exchange tube 110, and finally flows out of the first heat exchange unit 100 from the first medium outlet 102 of the first outlet pressure plate 1272.

[0052] Furthermore, in order to avoid mixing of the first heat exchange medium and the second heat exchange medium, it is necessary to ensure the independence of the flow path of the first heat exchange medium and the flow path of the second heat exchange medium, such as Figure 3As shown, a through hole 203 is provided on the heat exchanger shell 210, and the inlet and outlet structure 120 of the first heat exchange unit 100 is arranged outside the heat exchanger shell 210 through the through hole 203, so that the first medium inlet 101 and the first medium outlet 102 on the inlet and outlet structure 120 are arranged independently of the second heat exchange unit 200.

[0053] Specifically, for the above-mentioned independently arranged outlet structure 127 and inlet structure 126, two through holes 203 are arranged on the heat exchanger shell 210, and the two through holes 203 include a first through hole and a second through hole arranged on different sides of the heat exchanger shell 210. The different sides here can be opposite sides or adjacent sides, and no specific limitation is made here. The shape of the first through hole is the same as the cross-sectional shape of the first inlet pressure plate 1262, and the size is equal. The first inlet pressure plate 1262 passes through the first through hole and is placed outside the heat exchanger shell 210, and the first inlet pressure plate 1262 and the heat exchanger shell 210 are sealed and connected by size matching. The shape of the second through hole is the same as the cross-sectional shape of the first outlet pressure plate 1272, and the size is equal. The first outlet pressure plate 1272 passes through the second through hole and is placed outside the heat exchanger shell 210, and the first outlet pressure plate 1272 and the heat exchanger shell 210 are sealed and connected by size matching.

[0054] Such a configuration can ensure that the first heat exchange medium and the second heat exchange medium will not mix, thereby ensuring the heat exchange effect. Of course, in addition to the size matching sealing connection between the first inlet pressure plate 1262 and the heat exchanger shell 210, and the first outlet pressure plate 1272 and the heat exchanger shell 210, sealing can also be achieved by setting a sealing gasket, a sealant, etc.

[0055] Of course, in some other embodiments, the inlet structure 126 and the outlet structure 127 may also be integrated into one. Figures 2 to 4 The first heat exchange unit 100 is shown as a curved shape, and the inlet and outlet structure 120 includes an inlet and outlet water chamber 121 and an inlet and outlet pressure plate 122 connected to each other. The inlet and outlet water chamber 121 can be a regular box such as a rectangular box or a round box, or a special-shaped box. In a more specific embodiment, a rectangular box is selected, and the interior of the rectangular box is hollow. Figure 2As shown, a partition 125 is arranged inside the inlet and outlet water chamber 121. The partition 125 is a rectangular plate. The four sides of the rectangular plate are respectively sealed and connected with the upper inner wall, the front inner wall, the lower inner wall and the rear inner wall inside the rectangular box, so that the partition 125 is used to divide the internal space of the inlet and outlet water chamber 121 into a mutually independent and non-connected diverter chamber 123 and a confluence chamber 124. In addition, a diverter port 103 connecting the diverter chamber 123 with the inlet of the heat exchange tube 110 and a confluence port 104 connecting the confluence chamber 124 with the outlet of the heat exchange tube 110 are arranged on the inlet and outlet pressure plate 122 as a whole. The first medium inlet 101 and the first medium outlet 102 are both arranged on the inlet and outlet pressure plate 122, and the first medium inlet 101 is connected with the diverter chamber 123, and the first medium outlet 102 is connected with the confluence chamber 124.

[0056] Optionally, there are multiple diverter ports 103 and confluence ports 104, and they are arranged in a row on the side of the inlet and outlet water chamber 121 away from the inlet and outlet pressure plates 122. Multiple heat exchange tubes 110 are provided, and the multiple heat exchange tubes 110 include an inlet-side heat exchange tube 111 and an outlet-side heat exchange tube 112. More specifically, the diverter ports 103 are provided in one row, and the confluence ports 104 are provided in one row. The multiple heat exchange tubes 110 are arranged in two rows, one row of the heat exchange tubes 110 is the inlet-side heat exchange tube 111, and the other row is the outlet-side heat exchange tube 112. One end of the inlet-side heat exchange tube 111 is connected to the diverter chamber 123 through the diverter port 103, and one end of the outlet-side heat exchange tube 112 is connected to the confluence chamber 124 through the confluence port 104.

[0057] In order to connect the inlet side heat exchange tube 111 and the outlet side heat exchange tube 112, continue to refer to Figures 2 to 4 As shown, the first heat exchange unit 100 further includes a reflux water chamber 130. Specifically, the reflux water chamber 130 is a rectangular box, the interior of the reflux water chamber 130 is hollow, and forms a reflux chamber 1301, the reflux water chamber 130 is provided with a reversing inlet 1302 connecting the reflux chamber 1301 and the other end of the inlet-side heat exchange tube 111, and the reflux water chamber 130 is also provided with a reversing outlet 1303 connecting the reflux chamber 1301 and the other end of the outlet-side heat exchange tube 112.

[0058] Continue to refer to Figure 2As shown, the process of the first heat exchange medium flowing in the first heat exchange unit 100 is as follows: the first heat exchange medium enters the diversion chamber 123 of the inlet and outlet water chamber 121 from the first medium inlet 101 set on the inlet and outlet pressure plate 122; then, the first heat exchange medium is diverted to multiple inlet side heat exchange tubes 111, and flows into the reflux chamber 1301 of the reflux water chamber 130 through the outlet end of the inlet side heat exchange tube 111; then, the first heat exchange medium reverses in the reflux chamber 1301, and refluxes to the confluence chamber 124 of the inlet and outlet water chamber 121 through multiple outlet side heat exchange tubes 112; finally, the first heat exchange media that converge together flow out of the first heat exchange unit 100 through the first medium outlet 102 set on the inlet and outlet pressure plate 122.

[0059] Continue to refer to Fig. 9 As shown, the heat exchanger housing 210 of the second heat exchange unit 200 can be a split structure. Specifically, the heat exchanger housing 210 includes a left housing and a right housing, and the left housing and the right housing are assembled to form the heat exchanger housing 210. The split heat exchanger housing 210 is not only less difficult to manufacture, but also easy to assemble with the first heat exchange unit 100. Of course, in addition to the split structure with left and right separate settings, the heat exchanger housing 210 can also be a split structure with front and back separate settings, that is, the heat exchanger housing 210 is assembled by a front housing and a rear housing that are separately set in the front and back. The heat exchanger housing 210 can be made of aluminum or plastic.

[0060] Continue to refer to Figure 1 As shown, the second medium inlet 201 and the second medium outlet 202 can be arranged on different sides of the second heat exchange unit 200, where different sides refer to opposite sides or adjacent sides; of course, in some embodiments, such as Figure 7 As shown, the second medium inlet 201 and the second medium outlet 202 can also be arranged on the same side of the second heat exchange unit 200. In this case, in order to ensure that the second heat exchange medium can fully flow in the second flow space, as shown in FIG. Figure 8 and Fig. 9 As shown, a baffle 150 is further provided inside the heat exchanger shell 210. Specifically, the baffle 150 may be a rectangular plate, and the baffle 150 is located between the second medium inlet 201 and the second medium outlet 202 in the height direction, and one end of the baffle 150 close to the second medium inlet 201 and the second medium outlet 202 is seamlessly connected to the inner wall of one side of the heat exchanger shell 210, and the other end of the baffle 150 away from the second medium inlet 201 and the second medium outlet 202 is spaced from the inner wall of the other side of the heat exchanger shell 210, so as to form a curved first flow space inside the heat exchanger shell 210.

[0061] Continue to refer to Figure 8As shown, the flow process of the second heat exchange medium in the second heat exchange unit 200 is as follows: the second heat exchange medium enters the second flow space on one side of the baffle 150 from the second medium inlet 201, then enters the second flow space on the other side of the baffle 150 through the gap between the baffle 150 and the heat exchanger shell 210, and finally, the second heat exchange medium flows out from the second medium outlet 202. Such an arrangement can ensure that the second heat exchange medium has sufficient flow time in the second flow space, so that the second heat exchange medium and the first heat exchange medium can fully exchange heat, thereby ensuring the heat exchange effect and heat exchange efficiency.

[0062] Optionally, continue to refer to Figure 8 As shown, the number of baffles 150 can be one, in which case a curved first flow space can be formed; of course, the number of baffles 150 can be two or even more, in which case the two ends of the baffle 150 located in the middle are respectively connected to the inner walls of the heat exchanger shell 210, and there is a certain gap between the two sides and the inner walls of the heat exchanger shell 210, thereby forming an S-shaped first flow space, further extending the heat exchange time.

[0063] Furthermore, in order to allow the second heat exchange medium to enter the second flow space through the second medium inlet 201 , a second inlet pressure plate is provided at the second medium inlet 201 , and a second outlet pressure plate is provided at the second medium outlet 202 .

[0064] Furthermore, in order to expand the heat exchange area, heat exchange fins 140 are further provided on the outer wall surface of each heat exchange tube 110. Optionally, the heat exchange fins 140 may be corrugated, serrated, or louvered, etc. The heat exchange fins 140 can not only connect the heat exchange tubes 110, but also enhance the heat exchange effect of the second heat exchange medium.

[0065] Embodiment 1:

[0066] Reference below Figure 10-12 The specific structure of the embedded plate-fin heat exchanger structure of a specific embodiment of the present invention is described. In this embodiment, the first heat exchange unit 100 is of I Flow type, that is, the first heat exchange medium in the first heat exchange unit 100 is of I Flow type; the second heat exchange unit 200 is of I Flow type, that is, the second heat exchange medium in the second heat exchange unit 200 is of I Flow type.

[0067] The embedded plate-fin heat exchanger structure provided in this embodiment includes a first heat exchange unit 100 and a second heat exchange unit 200 .

[0068] like Figure 10-12As shown, the first heat exchange unit 100 includes an inlet and outlet structure 120 and a heat exchange tube 110. The upper and lower sides of the heat exchange tube 110 are connected with heat exchange fins 140, and the heat exchange fins 140 are serrated. The number of heat exchange tubes 110 is 16, and they are arranged in two columns and eight rows. The inlet and outlet structure 120 includes an inlet structure 126 and an outlet structure 127 that are separately arranged. The inlet structure 126 includes an inlet water chamber 1261 and a first inlet pressure plate 1262 that are connected to each other. A diversion chamber 123 is arranged in the inlet water chamber 1261. 16 diversion ports 103 are arranged on the side of the inlet water chamber 1261 away from the first inlet pressure plate 1262. The inlet ends of the 16 heat exchange tubes 110 are inserted into the 16 diversion ports 103 one by one, thereby realizing the separate communication between the 16 heat exchange tubes 110 and the diversion chamber 123. The first inlet pressure plate 1262 is axially penetrated with a first medium inlet 101, and the first medium inlet 101 is connected to the diversion chamber 123. The outlet structure 127 includes an outlet water chamber 1271 and a first outlet pressure plate 1272 connected to each other, and a confluence chamber 124 is arranged inside the outlet water chamber 1271, and 16 confluence ports 104 are arranged on the side of the outlet water chamber 1271 away from the first outlet pressure plate 1272, and the outlet ends of the 16 heat exchange tubes 110 are inserted into the 16 confluence ports 104 one by one, so as to realize the communication between the 16 heat exchange tubes 110 and the confluence chamber 124 respectively.

[0069] The second heat exchange unit 200 includes a heat exchanger shell 210. The heat exchanger shell 210 includes a left shell and a right shell, and a first half hole and a second half hole are respectively provided at both ends of the left shell, and a first half hole and a second half hole are respectively provided at corresponding positions at both ends of the right shell, and the two first half holes can be spliced ​​to form a first through hole, and the two second half holes can be spliced ​​to form a second through hole. The heat exchanger shell 210 has a chamber inside, and most of the first heat exchange unit 100 is arranged in the chamber, the first inlet pressure plate 1262 passes through the first through hole and is placed outside the heat exchanger shell 210, and the first outlet pressure plate 1272 passes through the second through hole and is arranged outside the heat exchanger shell 210, and a second flow space for the second heat exchange medium is formed between the outer wall surface of the first heat exchange unit 100 located inside the heat exchanger shell 210 and the inner wall surface of the heat exchanger shell 210.

[0070] The heat exchanger housing 210 is provided with a second medium inlet 201 and a second medium outlet 202 communicating with the second flow space, and the second medium inlet 201 and the second medium outlet 202 are located at opposite sides of the first heat exchange unit 100. The second medium inlet 201 is connected to a second inlet pressure plate, and the second medium outlet 202 is connected to a second outlet pressure plate.

[0071] Embodiment 2:

[0072] Reference below Figure 10-12The specific structure of the embedded plate-fin heat exchanger structure of another specific embodiment of the present invention is described. In this embodiment, the first heat exchange unit 100 is of I Flow type, that is, the first heat exchange medium in the first heat exchange unit 100 flows in I type; the second heat exchange unit 200 is of curvilinear type, that is, the second heat exchange medium in the second heat exchange unit 200 flows in curvilinear type.

[0073] like Figure 10-12 As shown, the embedded plate-fin heat exchanger structure provided in this embodiment includes a first heat exchange unit 100 and a second heat exchange unit 200. The first heat exchange unit 100 includes an inlet and outlet structure 120 and a heat exchange tube 110. The upper and lower sides of the heat exchange tube 110 are connected to heat exchange fins 140, and the heat exchange fins 140 are serrated. The number of heat exchange tubes 110 is 16, and they are arranged in two columns and eight rows. The inlet and outlet structure 120 includes an inlet structure 126 and an outlet structure 127 which are separately arranged. The inlet structure 126 includes an inlet water chamber 1261 and a first inlet pressure plate 1262 which are connected to each other. A diversion chamber 123 is arranged in the inlet water chamber 1261. 16 diversion ports 103 are arranged on the side of the inlet water chamber 1261 away from the first inlet pressure plate 1262. The inlet ends of the 16 heat exchange tubes 110 are inserted into the 16 diversion ports 103 one by one, so as to realize the communication between the 16 heat exchange tubes 110 and the diversion chamber 123. A first medium inlet 101 is arranged through the first inlet pressure plate 1262 along the axial direction, and the first medium inlet 101 is communicated with the diversion chamber 123. The outlet structure 127 includes an outlet water chamber 1271 and a first outlet pressure plate 1272 which are interconnected. A confluence chamber 124 is arranged inside the outlet water chamber 1271. Sixteen confluence ports 104 are arranged on the side of the outlet water chamber 1271 away from the first outlet pressure plate 1272. The outlet ends of the 16 heat exchange tubes 110 are inserted into the 16 confluence ports 104 one by one, thereby realizing the respective connection between the 16 heat exchange tubes 110 and the confluence chamber 124.

[0074] The second heat exchange unit 200 includes a heat exchanger shell 210 and a baffle 150. The heat exchanger shell 210 includes a left shell and a right shell, and a first half hole and a second half hole are respectively provided at both ends of the left shell, and a first half hole and a second half hole are respectively provided at corresponding positions at both ends of the right shell, and the two first half holes can be spliced ​​to form a first through hole, and the two second half holes can be spliced ​​to form a second through hole. The heat exchanger shell 210 has a chamber inside, and most of the first heat exchange unit 100 is arranged in the chamber, the first inlet pressure plate 1262 passes through the first through hole and is placed outside the heat exchanger shell 210, and the first outlet pressure plate 1272 passes through the second through hole and is arranged outside the heat exchanger shell 210, and a second flow space for the second heat exchange medium is formed between the outer wall surface of the first heat exchange unit 100 located inside the heat exchanger shell 210 and the inner wall surface of the heat exchanger shell 210.

[0075] The heat exchanger shell 210 is provided with a second medium inlet 201 and a second medium outlet 202 connected to the second flow space, and the second medium inlet 201 and the second medium outlet 202 are located on the same side of the first heat exchange unit 100, and the opening directions are opposite. The second medium inlet 201 is connected to the second inlet pressure plate, and the second medium outlet 202 is connected to the second outlet pressure plate. The baffle 150 is a rectangular plate. The baffle 150 is arranged horizontally and is located between the second medium inlet 201 and the second medium outlet 202 in the height direction. One end of the baffle 150 close to the second medium inlet 201 and the second medium outlet 202 is seamlessly connected to the inner wall of one side of the heat exchanger shell 210, and the other end of the baffle 150 away from the second medium inlet 201 and the second medium outlet 202 is spaced from the inner wall of the other side of the heat exchanger shell 210, so as to form a curved first flow space inside the heat exchanger shell 210.

[0076] Embodiment three:

[0077] Reference below Figures 1 to 6 The specific structure of the embedded plate-fin heat exchanger structure of another specific embodiment of the present invention is described. In this embodiment, the first heat exchange unit 100 is a curvilinear type, that is, the first heat exchange medium in the first heat exchange unit 100 flows in a curvilinear shape; the second heat exchange unit 200 is an I Flow type, that is, the second heat exchange medium in the second heat exchange unit 200 flows in an I-type shape.

[0078] The embedded plate-fin heat exchanger structure provided in this embodiment includes a first heat exchange unit 100 and a second heat exchange unit 200 .

[0079] like Figures 2 to 4As shown, the first heat exchange unit 100 includes an inlet and outlet structure 120, a heat exchange tube 110 and a return water chamber 130. The upper and lower sides of the heat exchange tube 110 are connected to heat exchange fins 140, and the heat exchange fins 140 are serrated. The number of heat exchange tubes 110 is 16, and they are arranged in two columns and eight rows, one of which is the inlet side heat exchange tube 111, and the other is the outlet side heat exchange tube 112. The inlet and outlet structure 120 includes an inlet and outlet water chamber 121 and an inlet and outlet pressure plate 122 connected to each other, and a partition 125 is arranged inside the inlet and outlet water chamber 121. The partition 125 is a rectangular plate, and the four sides of the rectangular plate are respectively sealed and connected to the upper inner wall, the front inner wall, the lower inner wall and the rear inner wall inside the rectangular box, so that the partition 125 is used to divide the internal space of the inlet and outlet water chamber 121 into a mutually independent and non-connected diversion chamber 123 and a confluence chamber 124. The inlet and outlet water chamber 121 is provided with eight diversion ports 103 connecting the diversion chamber 123 with the inlet of the heat exchange tube 110 and eight confluence ports 104 connecting the confluence chamber 124 with the outlet of the heat exchange tube 110. The inlet and outlet pressure plate 122 is waist-shaped as a whole. The first medium inlet 101 and the first medium outlet 102 are both provided on the inlet and outlet pressure plate 122, and the first medium inlet 101 is connected with the diversion chamber 123, and the first medium outlet 102 is connected with the confluence chamber 124. The reflux water chamber 130 is a rectangular box, and a reflux chamber 1301 is formed inside the reflux water chamber 130. The reflux water chamber 130 is provided with eight reversing inlets 1302 connecting the reflux chamber 1301 with the other end of the inlet-side heat exchange tube 111, and the reflux water chamber 130 is also provided with eight reversing outlets 1303 connecting the reflux chamber 1301 with the other end of the outlet-side heat exchange tube 112.

[0080] like Figure 1 and Figure 2 As shown, the second heat exchange unit 200 includes a heat exchanger shell 210. The heat exchanger shell 210 includes a left shell and a right shell, a first half hole is provided on the left shell, and a first half hole is provided on the right shell, and the two first half holes can be spliced ​​to form a through hole 203. The heat exchanger shell 210 has a chamber inside, and most of the first heat exchange unit 100 is arranged in the chamber. The inlet and outlet pressure plates 122 are placed outside the heat exchanger shell 210 through the through hole 203, and a second flow space for the second heat exchange medium is formed between the outer wall surface of the first heat exchange unit 100 located inside the heat exchanger shell 210 and the inner wall surface of the heat exchanger shell 210.

[0081] The heat exchanger housing 210 is provided with a second medium inlet 201 and a second medium outlet 202 communicating with the second flow space, and the second medium inlet 201 and the second medium outlet 202 are located at opposite sides of the first heat exchange unit 100. The second medium inlet 201 is connected to a second inlet pressure plate, and the second medium outlet 202 is connected to a second outlet pressure plate.

[0082] Embodiment 4:

[0083] Reference below Figure 7-9 The specific structure of the embedded plate-fin heat exchanger structure of another specific embodiment of the present invention is described. In this embodiment, the first heat exchange unit 100 is curvilinear, that is, the first heat exchange medium in the first heat exchange unit 100 flows in a curvilinear shape; the second heat exchange unit 200 is curvilinear, that is, the second heat exchange medium in the second heat exchange unit 200 flows in a curvilinear shape.

[0084] The embedded plate-fin heat exchanger structure provided in this embodiment includes a first heat exchange unit 100 and a second heat exchange unit 200 .

[0085] like Figure 7-Figure 9 As shown, the first heat exchange unit 100 includes an inlet and outlet structure 120, a heat exchange tube 110 and a return water chamber 130. The upper and lower sides of the heat exchange tube 110 are connected to heat exchange fins 140, and the heat exchange fins 140 are serrated. The number of heat exchange tubes 110 is 16, and they are arranged in two columns and eight rows, one of which is the inlet side heat exchange tube 111, and the other is the outlet side heat exchange tube 112. The inlet and outlet structure 120 includes an inlet and outlet water chamber 121 and an inlet and outlet pressure plate 122 connected to each other, and a partition 125 is arranged inside the inlet and outlet water chamber 121. The partition 125 is a rectangular plate, and the four sides of the rectangular plate are respectively sealed and connected to the upper inner wall, the front inner wall, the lower inner wall and the rear inner wall inside the rectangular box, so that the partition 125 is used to divide the internal space of the inlet and outlet water chamber 121 into a mutually independent and non-connected diversion chamber 123 and a confluence chamber 124. The inlet and outlet water chamber 121 is provided with eight diversion ports 103 connecting the diversion chamber 123 with the inlet of the heat exchange tube 110 and eight confluence ports 104 connecting the confluence chamber 124 with the outlet of the heat exchange tube 110. The inlet and outlet pressure plate 122 is waist-shaped as a whole. The first medium inlet 101 and the first medium outlet 102 are both provided on the inlet and outlet pressure plate 122, and the first medium inlet 101 is connected with the diversion chamber 123, and the first medium outlet 102 is connected with the confluence chamber 124. The reflux water chamber 130 is a rectangular box, and a reflux chamber 1301 is formed inside the reflux water chamber 130. The reflux water chamber 130 is provided with eight reversing inlets 1302 connecting the reflux chamber 1301 with the other end of the inlet-side heat exchange tube 111, and the reflux water chamber 130 is also provided with eight reversing outlets 1303 connecting the reflux chamber 1301 with the other end of the outlet-side heat exchange tube 112.

[0086] like Figure 8 and Fig. 9As shown, the second heat exchange unit 200 includes a heat exchanger shell 210 and a baffle 150. The heat exchanger shell 210 includes a left shell and a right shell, a first half hole is set on the left shell, and a first half hole is set at a corresponding position of the right shell, and the two first half holes can be spliced ​​to form a through hole 203. The heat exchanger shell 210 has a chamber inside, and most of the first heat exchange unit 100 is set in the chamber. The inlet and outlet pressure plates 122 are placed outside the heat exchanger shell 210 through the through hole 203, and a second flow space for the second heat exchange medium is formed between the outer wall surface of the first heat exchange unit 100 located inside the heat exchanger shell 210 and the inner wall surface of the heat exchanger shell 210.

[0087] The heat exchanger shell 210 is provided with a second medium inlet 201 and a second medium outlet 202 connected to the second flow space, and the second medium inlet 201 and the second medium outlet 202 are located on the same side of the first heat exchange unit 100, and the opening directions are opposite. The second medium inlet 201 is connected to the second inlet pressure plate, and the second medium outlet 202 is connected to the second outlet pressure plate. The baffle 150 is a rectangular plate. The baffle 150 is arranged horizontally and is located between the second medium inlet 201 and the second medium outlet 202 in the height direction. One end of the baffle 150 close to the second medium inlet 201 and the second medium outlet 202 is seamlessly connected to the inner wall of one side of the heat exchanger shell 210, and the other end of the baffle 150 away from the second medium inlet 201 and the second medium outlet 202 is spaced from the inner wall of the other side of the heat exchanger shell 210, so as to form a curved first flow space inside the heat exchanger shell 210.

[0088] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An embedded plate-fin heat exchanger structure, characterized in that: The invention comprises a first heat exchange unit (100) and a second heat exchange unit (200), wherein the first heat exchange unit (100) comprises an inlet and outlet structure (120) and a plurality of heat exchange tubes (110), wherein the inlet and outlet structure (120) is provided with a first medium inlet (101), a first medium outlet (102), a plurality of flow diversion ports (103) and a plurality of flow confluence ports (104), wherein the plurality of heat exchange tubes (110) are arranged one by one between the plurality of flow diversion ports (103) and the plurality of flow confluence ports (104), and one end of each heat exchange tube (110) is inserted into the corresponding flow diversion port (103). ), and the other end is inserted into the corresponding confluence port (104), a first flow space for a first heat exchange medium is formed inside the heat exchange tube (110), the first heat exchange medium enters the inlet and outlet structure (120) through the first medium inlet (101), and is diverted to the multiple heat exchange tubes (110) through the multiple diversion ports (103), the first heat exchange medium in the multiple heat exchange tubes (110) flows back to the inlet and outlet structure (120) through the multiple confluence ports (104), and flows out of the inlet and outlet structure (120) through the first medium outlet (102); The second heat exchange unit (200) comprises a heat exchanger shell (210), the heat exchanger shell (210) has a chamber inside, the first heat exchange unit (100) is detachably embedded in the chamber, a second flow space for a second heat exchange medium is formed between an outer wall surface of the first heat exchange unit (100) and an inner wall surface of the heat exchanger shell (210), and a second medium inlet (201) and a second medium outlet (202) communicating with the second flow space are provided on the heat exchanger shell (210); The inlet and outlet structure (120) comprises an inlet structure (126) and an outlet structure (127); the inlet structure (126) comprises an inlet water chamber (1261) and a first inlet pressure plate (1262) connected to each other; a flow diversion chamber (123) is formed inside the inlet water chamber (1261); and the inlet water chamber (1261) is provided with the flow diversion port (103) connecting the flow diversion chamber (123) and one end of the heat exchange tube (110); and the first medium inlet (101) is provided on the first inlet pressure plate (1262); The outlet structure (127) comprises an outlet water chamber (1271) and a first outlet pressure plate (1272) which are connected to each other; a confluence chamber (124) is formed inside the outlet water chamber (1271); and the outlet water chamber (1271) is provided with a confluence port (104) which communicates the confluence chamber (124) with the other end of the heat exchange tube (110); and the first medium outlet (102) is provided on the first outlet pressure plate (1272); The heat exchanger shell (210) is provided with two through holes (203), and the two through holes (203) include a first through hole and a second through hole provided on different sides of the heat exchanger shell (210); The first inlet pressure plate (1262) is placed outside the heat exchanger shell (210) through the first through hole, and the first outlet pressure plate (1272) is placed outside the heat exchanger shell (210) through the second through hole.

2. The embedded plate-fin heat exchanger structure according to claim 1 is characterized in that: The plurality of heat exchange tubes (110) are arranged in rows and columns.

3. The embedded plate-fin heat exchanger structure according to claim 1, characterized in that: The inlet and outlet structure (120) comprises an inlet and outlet water chamber (121) and an inlet and outlet pressure plate (122) connected to each other; a partition (125) is arranged inside the inlet and outlet water chamber (121); the partition (125) divides the internal space of the inlet and outlet water chamber (121) into a diverter chamber (123) and a confluence chamber (124); and the inlet and outlet water chamber (121) is provided with the diverter port (103) connecting the diverter chamber (123) with the inlet of the heat exchange tube (110) and the confluence port (104) connecting the confluence chamber (124) with the outlet of the heat exchange tube (110); The first medium inlet (101) and the first medium outlet (102) are both arranged on the inlet and outlet pressure plate (122), and the first medium inlet (101) is connected to the flow distribution chamber (123), and the first medium outlet (102) is connected to the flow confluence chamber (124).

4. The embedded plate-fin heat exchanger structure according to claim 3 is characterized in that: The heat exchange tube (110) comprises an inlet-side heat exchange tube (111) and an outlet-side heat exchange tube (112); one end of the inlet-side heat exchange tube (111) is connected to the flow diversion chamber (123) through the flow diversion port (103), and one end of the outlet-side heat exchange tube (112) is connected to the flow confluence chamber (124) through the flow confluence port (104); The first heat exchange unit (100) further comprises a reflux water chamber (130), a reflux chamber (1301) being formed inside the reflux water chamber (130), a reversing inlet (1302) being provided on the reflux water chamber (130) for connecting the reflux chamber (1301) and the other end of the inlet-side heat exchange tube (111), and a reversing outlet (1303) being provided on the reflux water chamber (1300) for connecting the reflux chamber (1301) and the other end of the outlet-side heat exchange tube (112).

5. The embedded plate-fin heat exchanger structure according to claim 4, characterized in that: The heat exchanger shell (210) is provided with a through hole (203), and the inlet and outlet pressure plates (122) pass through the through hole (203) and are arranged outside the heat exchanger shell (210).

6. The embedded plate-fin heat exchanger structure according to claim 1, characterized in that: The second medium inlet (201) and the second medium outlet (202) are located on the same side of the second heat exchange unit (200); A baffle (150) is further provided inside the heat exchanger shell (210), and the baffle (150) is located between the second medium inlet (201) and the second medium outlet (202), and one end of the baffle (150) close to the second medium inlet (201) and the second medium outlet (202) is seamlessly connected to an inner wall of one side of the heat exchanger shell (210), and the other end of the baffle (150) away from the second medium inlet (201) and the second medium outlet (202) is spaced from the inner wall of the other side of the heat exchanger shell (210), so as to form a curved first flow space inside the heat exchanger shell (210).

7. The embedded plate-fin heat exchanger structure according to claim 6, characterized in that: The plurality of heat exchange tubes (110) are arranged in rows and columns, and the baffle (150) is disposed between two adjacent rows of the heat exchange tubes (110).

8. The embedded plate-fin heat exchanger structure according to any one of claims 1 to 7, characterized in that: The first heat exchange unit (100) further comprises heat exchange fins (140), and the heat exchange fins (140) are arranged on the outer wall surface of the heat exchange tube (110).

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