Enclosed heat exchanger

Abstract

The present invention relates to the field of plate-fin heat exchangers, and specifically to an enclosed heat exchanger, which includes a core body; the surface of the core body divides the core body into an internal channel and an external channel. The internal channel is used for the flow of a first medium, and the external channel is used for the flow of a second medium. The core body is arranged in the vertical direction. The internal channel includes multiple sections of deflecting channels, and the first medium forms a deflecting flow state between the vertical direction and the horizontal direction through any section of the deflecting channel. The external channel penetrates the core body in the horizontal direction. By changing the flow direction of the second medium penetrating the core body, the second medium contacts the surface of the core body in an enclosed manner relative to the surface of the core body; the enclosed heat exchanger provided by the present invention can achieve the technical effect of balancing the flow pressure of the second medium, so that the flow pressure of the second medium relative to the enclosed heat exchanger provided by the present invention is more uniform.

Description

Technical Field

[0001] The present invention relates to the field of plate-fin heat exchangers, and more particularly to an enclosed heat exchanger. Background Art

[0002] A plate-fin heat exchanger is usually made in a flat plate shape and is formed by brazing partitions, seals, and fins. A first medium flows inside the plate-fin heat exchanger; one side of the plate-fin heat exchanger that the second medium first contacts is the proximal end face, and the other side where the second medium exits the plate-fin heat exchanger is the distal end face. The second medium penetrates through the plate-fin heat exchanger in a penetrating state, so that the first medium and the second medium form a heat exchange state through the plate-fin heat exchanger.

[0003] In the existing plate-fin heat exchanger, since the area of the proximal end face is relatively large, when the second medium passes through the proximal end face, the second medium diffuses from the center to the periphery on the proximal end face, and the pressure of the second medium relative to any point on the proximal end face is uneven, resulting in the technical problem of uneven heat dissipation efficiency of the plate-fin heat exchanger in the prior art. Summary of the Invention

[0004] In order to solve the technical problem that in the existing plate-fin heat exchanger, since the area of the proximal end face is relatively large, when the second medium passes through the proximal end face, the second medium diffuses from the center to the periphery on the proximal end face, and the pressure of the second medium relative to any point on the proximal end face is uneven, resulting in the uneven heat dissipation efficiency of the plate-fin heat exchanger in the prior art, the present invention provides an enclosed heat exchanger.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] According to one aspect of the present invention, there is provided an enclosed heat exchanger, including a core body; the surface of the core body divides the core body into an internal channel and an external channel. The internal channel is used for flowing a first medium, and the external channel is used for flowing a second medium. Wherein, the first medium and the second medium form a heat exchange state through the core body; the core body is arranged in the vertical direction, the internal channel includes multiple sections of deflecting channels, and the first medium respectively forms a deflecting flow state between the vertical direction and the horizontal direction through any section of the deflecting channels. The external channel penetrates the core body in the horizontal direction, and wherein, the external channel penetrates out of the core body at the upper part or the lower part of the core body.

[0007] Furthermore, it further includes a housing; the housing covers the outside of the core body, wherein the core body is covered by the housing in the horizontal direction, and the upper or lower part of the core body is covered by the housing; the external channel penetrates through the housing, wherein the external channel penetrates through the housing along the direction from the lower part to the upper part of the housing or along the direction from the upper part to the lower part of the housing.

[0008] Furthermore, the core body is cylindrical; the external channel penetrates through the core body in the radial direction of the core body, wherein the external channel exits from the upper or lower part of the core body in the axial direction of the core body.

[0009] Furthermore, the core body includes a plurality of partition plates and a plurality of seals; any one of the partition plates is circular; any one of the seals is respectively provided with a first annular part, a second annular part, a first connecting part and a second connecting part, wherein the diameter of the first annular part is smaller than the diameter of the second annular part, the first annular part and the second annular part are arranged concentrically, and the first connecting part and the second connecting part are respectively used for connecting the first annular part and the second annular part; the plurality of partition plates are parallel to each other, and the centers of the plurality of partition plates are respectively arranged on the same axis line, wherein the axis line is parallel to the vertical direction; two adjacent partition plates and one seal are set as a layer of combined body, and multiple layers of the combined bodies are arranged at intervals along the vertical direction, wherein one seal is arranged between two partition plates, and the radial surface of one layer of the combined body is in a sealed state.

[0010] Furthermore, two through holes are respectively arranged on any one of the partition plates; the two partition plates of any one of the combined bodies are respectively an upper partition plate and a lower partition plate, the two through holes of the upper partition plate are respectively an upper injection hole and an upper discharge hole, the two through holes of the lower partition plate are respectively a lower injection hole and a lower discharge hole, the upper injection hole and the lower injection hole are respectively located on both sides of the first connecting part, and the upper discharge hole and the lower discharge hole are respectively located on both sides of the second connecting part; the inner cavity of the combined body is divided into two chambers in a separated state by the first connecting part and the second connecting part, and the two chambers are respectively an injection chamber and a discharge chamber, the upper injection hole and the lower injection hole are respectively communicated with the injection chamber, the upper discharge hole and the lower discharge hole are respectively communicated with the discharge chamber, and the injection chamber and the discharge chamber are in a mutually isolated state.

[0011] Furthermore, a plurality of fins are arranged on the seal, wherein any one of the fins is respectively arranged on the first annular part and / or the second annular part, and any one of the fins is respectively arranged outside the surface of the combined body.

[0012] Furthermore, the core body further includes a plurality of fin components; one of the fin components is disposed between two adjacent layers of the composite body; each fin component is respectively provided with a plurality of flow channels, each flow channel penetrates the core body in the horizontal direction, and each flow channel is a part of the external channel.

[0013] Furthermore, the fin component includes a plurality of fins, a first heat conducting plate, a second heat conducting plate, a first conduit and a second conduit; a first opening is provided at the center of the first heat conducting plate, and a second opening is provided at the center of the second heat conducting plate; the first heat conducting plate is disposed in the horizontal direction, the second heat conducting plate is disposed above or below the first heat conducting plate, a gap is left between the first heat conducting plate and the second heat conducting plate, and the first opening and the second opening are in a through state in the vertical direction; the first conduit and the second conduit are respectively disposed between the first heat conducting plate and the second heat conducting plate, and the first conduit and the second conduit respectively penetrate the first heat conducting plate and the second heat conducting plate; the plurality of fins are respectively disposed between the first heat conducting plate and the second heat conducting plate in a radial manner, and gaps are respectively left at both ends of two adjacent fins.

[0014] Furthermore, each fin is received between two adjacent composite bodies; wherein, each fin protrudes from the composite body along the radial direction of the composite body; or, each fin is disposed within the horizontal contour of the composite body along the radial direction of the composite body.

[0015] Furthermore, one of the multiple composite bodies is a first composite body, and one of the partitions of the first composite body is a positioning partition, and the positioning partition is in surface contact with the housing; wherein, two through holes penetrating the housing are provided on the housing, and the two through holes are respectively communicated with the two through holes of the positioning partition in the vertical direction; another one of the multiple composite bodies is a second composite body, and one of the partitions of the second composite body is a closed partition; wherein, the distance from the closed partition to the positioning partition is greater than the distance from any other partition to the positioning partition, and the closed partition is a blind plate.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] The enclosed heat exchanger provided by the present invention changes the flow direction of the second medium penetrating the core, so that the second medium contacts the surface of the core in an enclosed manner relative to the surface of the core; compared with the prior art, in which the second medium contacts the proximal end face of the heat exchanger in the prior art in a diffusion state from the center to the periphery, the enclosed heat exchanger provided by the present invention can achieve the technical effect of balancing the flow pressure of the second medium, so that the flow pressure of the second medium relative to the enclosed heat exchanger provided by the present invention is more uniform, solving the technical problem of the plate-fin heat exchanger in the prior art that, due to the relatively large area of the proximal end face, when the second medium passes through the proximal end face, the second medium is in a diffusion state from the center to the periphery on the proximal end face, and the pressure of the second medium at any point relative to the proximal end face is uneven, resulting in uneven heat dissipation efficiency of the plate-fin heat exchanger in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the core provided by an embodiment of the present invention;

[0019] Figure 2 is another schematic structural view of the core provided by an embodiment of the present invention;

[0020] Figure 3 is still another schematic structural view of the core provided by an embodiment of the present invention;

[0021] Figure 4 is a schematic overall structural view of the partition plate and the seal strip provided by an embodiment of the present invention;

[0022] Figure 5 is another schematic overall structural view of the partition plate and the seal strip provided by an embodiment of the present invention;

[0023] Figure 6 is Figure 4 a schematic split structural view of the partition plate and the seal strip;

[0024] Figure 7 is Figure 5 a schematic split structural view of the partition plate and the seal strip;

[0025] Figure 8 is a schematic split structural view of the fin component provided by an embodiment of the present invention;

[0026] Figure 9 is another schematic split structural view of the fin component provided by an embodiment of the present invention;

[0027] Figure 10 is a schematic structural view of the housing provided by an embodiment of the present invention;

[0028] Figure 11 is a cross-sectional view of the enclosed heat exchanger provided by an embodiment of the present invention. Specific Embodiment

[0029] To solve the technical problem in the prior art that in a plate - fin heat exchanger, due to the relatively large area of the proximal end face, when the second medium passes through the proximal end face, the second medium is in a diffusion state from the center to the periphery on the proximal end face, and the pressure of the second medium at any point relative to the proximal end face is uneven, resulting in uneven heat dissipation efficiency of the plate - fin heat exchanger in the prior art, the present invention provides an enclosed heat exchanger.

[0030] See Figures 1 to 3 or see Figure 11 , an enclosed heat exchanger, comprising a core body 1;

[0031] The surface of the core body 1 divides the core body 1 into an internal channel and an external channel. The internal channel is used for flowing the first medium, and the external channel is used for flowing the second medium. Among them, the first medium and the second medium form a heat exchange state through the core body 1;

[0032] The core body 1 is arranged in the vertical direction. The internal channel includes multiple sections of deflecting channels. The first medium respectively forms a deflecting flow state between the vertical direction and the horizontal direction through any section of the deflecting channel. The external channel penetrates the core body 1 in the horizontal direction. Among them, the external channel penetrates out of the core body 1 at the upper or lower part of the core body 1.

[0033] When actually using the enclosed heat exchanger of this embodiment, the first medium undergoes multiple deflecting flows in the internal channel; that is to say, if the first medium is injected into the core body 1 in the vertical direction, the first medium is restricted by the internal channel and changes from flowing along the vertical direction to flowing along the horizontal direction, so that the first medium is in a diffusion state in the horizontal direction relative to the core body 1; then, the first medium can also change from flowing along the horizontal direction to flowing along the vertical direction, so that the medium can be in a diffusion state in the vertical direction relative to the core body 1; then, during the process of the first medium flowing from one end of the core body 1 to the other end of the core body 1, the first medium undergoes multiple deflecting flows in the vertical direction and the horizontal direction, and, during the process of the first medium flowing out of the core body 1 from the inside of the core body 1 to the outside of the core body 1, the first medium still undergoes multiple deflecting flows in the vertical direction and the horizontal direction until the first medium is discharged from the core body 1. The multiple deflecting flows of the first medium in the core body 1 not only make the first medium in a diffusion state relative to the core body 1, but also make the flow path of the first medium relative to the core body 1 longer, so that the first medium has a relatively large contact area with the core body 1.

[0034] The second medium is injected from the outside of the surface of the core 1 towards the center of the core 1, and then discharged from the center of the core 1 to the outside of the surface of the core 1; that is to say, if the aforementioned first medium is injected into the core 1 in the vertical direction, then the second medium should penetrate the core 1 in the horizontal direction to reach the center of the core 1, and then be discharged from the center of the core 1 to the outside of the surface of the core 1 in the vertical direction. The second medium penetrates the surface of the core 1 and flows out to the outside of the surface of the core 1 in one of the vertical directions, completing the flow process of the second medium. During the flow process of the second medium, the second medium forms a process of changing the flow direction from the horizontal direction to the vertical direction; the second medium forms an encircling flow relative to the surface of the core 1, so that the flow pressure of the second medium at any point relative to the surface of the core 1 is the same or approximately the same. Therefore, when the second medium penetrates the surface of the core 1, the pressure of the second medium at any point relative to the core 1 is the same, making the second medium form a uniform heat exchange state relative to the surface of the core 1.

[0035] It should be understood that for the enclosed heat exchanger provided in this embodiment, the second medium can also be first injected into the center of the core 1 in the vertical direction, and then penetrate the core 1 in a diffused manner from the center of the core 1 and be discharged to the outside of the surface of the core 1. In this flow mode of the second medium, its flow direction is opposite to that of the aforementioned second medium; that is to say, the enclosed heat exchanger of this embodiment can either form an encircling coverage of the surface of the core 1 or form a diffused coverage of the surface at the center of the core 1, so that when the second medium has two flow directions, it can respectively form the effect of uniform pressure relative to the surface of the core 1, and further achieve the effect of uniform heat dissipation of the second medium relative to the heat exchanger in both flow directions.

[0036] Therefore, for the enclosed heat exchanger provided by the present invention, by changing the flow direction of the second medium penetrating the core, the second medium contacts the surface of the core in an encircling manner relative to the surface of the core; compared with the prior art, in which the second medium contacts in a diffusion state from the center to the periphery on the proximal end surface of the heat exchanger in the prior art, the enclosed heat exchanger provided by the present invention can achieve the technical effect of balancing the flow pressure of the second medium, so that the flow pressure of the second medium relative to the enclosed heat exchanger provided by the present invention is more uniform, solving the technical problem of the plate-fin heat exchanger in the prior art. Since the area of the proximal end surface is relatively large, when the second medium passes through the proximal end surface, the second medium is in a diffusion state from the center to the periphery on the proximal end surface, and the pressure of the second medium at any point relative to the proximal end surface is not uniform, resulting in uneven heat dissipation efficiency of the plate-fin heat exchanger in the prior art.

[0037] In addition, for the enclosed heat exchanger provided by the present invention, by changing the flow direction of the first medium within the core body, it is more conducive to the diffusion of the first medium within the core body, resulting in a larger heat exchange area formed by the first medium, the core body, and the second medium, thereby improving the heat exchange efficiency of the heat exchange structure formed by the first medium passing through the core body and the second medium.

[0038] In this embodiment, the following preferred solution is adopted to define the second medium to contact the surface of the core body 1 in an enclosed manner.

[0039] See Figure 10 or Figure 11 , the enclosed heat exchanger further includes a housing 2;

[0040] The housing 2 covers the outside of the core body 1. Among them, the core body 1 is covered by the housing 2 in the horizontal direction, and the upper part or the lower part of the core body 1 is covered by the housing 2;

[0041] The external channel penetrates through the housing 2. Among them, the external channel penetrates through the housing 2 along the direction from the lower part to the upper part of the housing 2, or along the direction from the upper part to the lower part of the housing 2.

[0042] Among them, the housing 2 is sleeved outside the core body 1; the core body 1 is arranged along the vertical direction, the upper part of the core body 1 is the upper surface, the lower part of the core body 1 is the lower surface, and the side part of the core body 1 is the side surface. There should be a gap between the inner surface of the housing 2 and the side surface of the core body 1 to facilitate the second medium to contact the side surface of the core body 1 in an enclosed manner; the housing 2 should be in contact with the upper surface of the core body 1, but the housing 2 should not be in contact with the lower surface of the core body 1, or the housing 2 should be in contact with the lower surface of the core body 1, but the housing 2 should not be in contact with the upper surface of the core body 1. These two setting methods respectively enable the second medium to be injected into the housing 2 along the direction from the upper part to the lower part or from the lower part to the upper part of the core body 1. The second medium flows from the upper part or the lower part of the core body 1 to the side part of the core body 1 and is restricted by the inner surface of the housing 2. The second medium flows along the gap between the inner surface of the housing 2 and the side surface of the core body 1, thereby forming the second medium to contact the side surface of the core body 1 in an enclosed manner; when the second medium penetrates through the core body 1 and reaches the middle part of the core body 1, the second medium is discharged from the core body 1 and the housing 2 along the direction from the lower part to the upper part or from the upper part to the lower part. Among them, an opening should be provided on the housing 2 to facilitate the effect of 'the external channel penetrates through the housing 2 along the direction from the lower part to the upper part of the housing 2, or along the direction from the upper part to the lower part of the housing 2'.

[0043] When actually using the enclosed heat exchanger provided with the housing 2 and the core 1, the end of the housing 2 where the 'external channel penetrates through one end of the housing 2' is the tail end, and the end of the housing 2 where the'second medium is injected into the housing 2' is the head end, so that during the process of the second medium being injected into the housing 2 and discharged from the housing 2, multiple direction-changing flows are formed; that is to say, when the second medium is injected into the housing 2, the second medium is blocked by the core 1, and the second medium flows diffusely from the head end to the side of the core 1. The second medium flows within the distance between the inner surface of the housing 2 and the side of the core 1, contacts the side of the core 1, and is restricted by the inner surface of the housing 2. The second medium can only make an enclosed contact from the side of the core 1 to the center direction of the core 1. After the second medium penetrates the core 1 and reaches the middle of the core 1, the second medium is discharged from the tail end of the housing 2.

[0044] It should be understood that in order to form the effect that 'when the second medium is injected into the housing 2, the second medium is blocked by the core 1', a blocking structure should be provided at the head end of the core 1 located in the housing 2, which will be specifically described in the following content and will not be described here.

[0045] It should be understood that the housing 2 and the core 1 in this embodiment can be made into various shapes, including but not limited to rectangular annular cylinders, circular annular cylinders, or elliptical annular cylinders, etc.

[0046] In this embodiment, in order to facilitate the description of the specific structure of the enclosed heat exchanger, the circular annular cylinder will be taken as an example for a more detailed description below.

[0047] See Figures 1 to 3 , or see Figure 11 , the core 1 is cylindrical;

[0048] The external channel penetrates the core 1 in the radial direction of the core 1, and among them, the external channel penetrates out of the upper or lower part of the core 1 in the axial direction of the core 1.

[0049] It should be understood that if the core 1 is set to be cylindrical, then the housing 2 can be set into various shapes, as long as the housing 2 can enclose the core 1 and there is a distance between the inner surface of the housing 2 and the side of the core 1; for the convenience of understanding by those skilled in the art, the cylindrical housing 2 is preferably used for description.

[0050] When the core 1 and the housing 2 are respectively arranged in the vertical direction, the core 1 should be arranged inside the housing 2; a circular ring-shaped structure should be provided at the upper or lower part of the housing 2. When the upper part or the lower part of the core 1 is connected to the circular ring-shaped structure, the central through hole 120 of the circular ring-shaped structure communicates with the external channel penetrating the upper or lower part of the core 1, so as to facilitate the second medium to be discharged to the outside of the core 1 and the housing 2 through the external channel and the central through hole 120.

[0051] The inner surface of the housing 2 and the side surface of the core body 1 form an annular cylindrical cavity structure, which facilitates the surrounding contact between the second medium and the side surface of the core body 1.

[0052] The bottom of the housing 2 should be set to an open shape or a covering structure with an interface, so as to facilitate the injection of the second medium into the aforementioned 'cavity structure'.

[0053] The core body 1 is set to a cylindrical shape, and correspondingly, the housing 2 is designed to be a cylindrical shape. The structures of both are simple and easy to manufacture.

[0054] In this embodiment, regarding how to more specifically manufacture the cylindrical core body 1, the following preferred solution is adopted.

[0055] See Figures 4 to 7 , the core body 1 includes a plurality of partition plates 101 and a plurality of seals 102;

[0056] Any one of the partition plates 101 is circular;

[0057] Any one of the seals 102 is respectively provided with a first annular portion 111, a second annular portion 112, a first connecting portion 113 and a second connecting portion 114. Among them, the diameter of the first annular portion 111 is smaller than the diameter of the second annular portion 112, the first annular portion 111 and the second annular portion 112 are set to be concentric, and the first connecting portion 113 and the second connecting portion 114 are respectively used to connect the first annular portion 111 and the second annular portion 112;

[0058] The plurality of partition plates 101 are parallel to each other, and the centers of the plurality of partition plates 101 are respectively arranged on the same axis line, wherein the axis line is parallel to the vertical direction;

[0059] Two adjacent partition plates 101 and a seal 102 are set as a layer of combination body, and multiple layers of combination bodies are arranged at intervals along the vertical direction. Among them, a seal 102 is arranged between two partition plates 101, and the radial surface of a layer of combination body is in a sealed state.

[0060] Among them, the first annular part 111, the second annular part 112, the first connecting part 113, and the second connecting part 114 of the seal 102 connect the seal 102 itself into a whole, which is convenient for the manufacture of the seal 102 itself. One preferred method for manufacturing the seal 102 is as follows: using a mold and extrusion of aluminum, extruding aluminum or aluminum alloy material into an intermediate part with a sleeve structure. Among them, the distance between the outer cylinder and the inner cylinder of the sleeve structure is the same as the distance between the aforementioned first annular part 111 and the second annular part 112. There are a first intermediate plate and a second intermediate plate between the outer cylinder and the inner cylinder respectively, which are used to fix the outer cylinder and the inner cylinder respectively. The widths of the first intermediate plate and the second intermediate plate are the same as the lengths of the first connecting part 113 and the second connecting part 114 respectively. After the intermediate part is manufactured, the intermediate part is cut according to a preset size by a cutting method, and the seal 102 itself with the first annular part 111, the second annular part 112, the first connecting part 113, and the second connecting part 114 can be obtained.

[0061] To facilitate the flow of the first medium in the core body 1, it is preferable to increase the thickness of the seal 102. That is to say, the vertical heights of the first annular part 111, the second annular part 112, the first connecting part 113, and the second connecting part 114 are increased respectively and remain the same, so as to increase the distance between the two partitions 101 connected to the seal 102.

[0062] The partition 101 is arranged in a circular ring shape. On the one hand, it can form a cylindrical outer shape with the seal 102, so that the contours of the first annular part 111 and the second annular part 112 match the outer circumferential contour and the inner circumferential contour of the partition 101 respectively. On the other hand, the circular ring-shaped partition 101 is also convenient for the manufacture of the partition 101 itself. One preferred method for manufacturing the circular ring-shaped partition 101 is as follows: using a mold and extrusion of aluminum to manufacture an intermediate aluminum ingot in the shape of a cylinder with a central through hole 120, and cutting the intermediate aluminum ingot according to a preset size to obtain the circular ring-shaped partition 101.

[0063] In this embodiment, the following preferred scheme is adopted to inject the first medium into the inner cavity enclosed by the two partitions 101 and the seal 102.

[0064] See Figures 4 to 7 , two through holes 120 are respectively arranged on any one of the partitions 101;

[0065] For each assembly, the two partition plates 101 are respectively an upper partition plate 101 and a lower partition plate 101. The two through holes 120 of the upper partition plate 101 are respectively an upper injection hole and an upper discharge hole, and the two through holes 120 of the lower partition plate 101 are respectively a lower injection hole and a lower discharge hole. The upper injection hole and the lower injection hole are respectively located on both sides of the first connection portion 113, and the upper discharge hole and the lower discharge hole are respectively located on both sides of the second connection portion 114;

[0066] The inner cavity of the assembly is divided into two chambers by the first connection portion 113 and the second connection portion 114, and the two chambers are respectively an injection chamber and a discharge chamber. The upper injection hole and the lower injection hole are respectively in communication with the injection chamber, and the upper discharge hole and the lower discharge hole are respectively in communication with the discharge chamber. The injection chamber and the discharge chamber are in a state of mutual isolation.

[0067] Among them, the inner cavity between the two partition plates 101 and the seal 102 is divided into an injection chamber and a discharge chamber by the first connection portion 113 and the second connection portion 114; when actually injecting the first medium into the injection chamber, the first medium passes through the upper injection hole and is injected into the injection chamber. Restricted by the injection chamber, the first medium changes from a direction perpendicular to the partition plate 101 to a direction parallel to the partition plate 101 and flows in the injection chamber. When the first medium flows to the lower discharge hole, the first medium discharges from the injection chamber; when actually injecting the first medium into the discharge chamber, the first medium passes through the lower injection hole and is injected into the discharge chamber. Restricted by the discharge chamber, the first medium changes from a direction perpendicular to the partition plate 101 to a direction parallel to the partition plate 101 and flows in the discharge chamber. When the first medium flows to the upper discharge port, the first medium discharges from the discharge chamber.

[0068] The core body 1 has a plurality of partition plates 101 and seals 102. That is to say, there are a plurality of injection chambers and a plurality of discharge chambers in the core body 1. Since the core body 1 is cylindrical, the plurality of injection chambers communicate with each other in sequence from the upper part to the lower part of the core body 1. Similarly, the plurality of discharge chambers communicate with each other in sequence from the lower part to the upper part of the core body 1. From the perspective of an external observer, two adjacent injection chambers or two adjacent discharge chambers are in a state of being parallel to each other and offset from each other. This is because, in the structures of the partition plates 101 and seals 102 where two adjacent injection chambers and discharge chambers are located, the two through holes 120 of the upper partition plate 101 and the two through holes 120 of the lower partition plate 101 where the first injection chamber and discharge chamber are located are respectively arranged on both sides of the first connection portion 113 and the second connection portion 114. Similarly, the two through holes 120 of the upper partition plate 101 and the two through holes 120 of the lower partition plate 101 where the second injection chamber and discharge chamber are located are respectively arranged on both sides of the first connection portion 113 and the second connection portion 114. When two adjacent injection chambers are connected and two adjacent discharge chambers are connected, the lower discharge hole of the combined structure of the partition plate 101 and the seal 102 where the first injection chamber and discharge chamber are located is communicated with the upper injection hole of the combined structure of the partition plate 101 and the seal 102 where the second injection chamber and discharge chamber are located as a whole. As a result, the lower discharge hole of the combined structure of the partition plate 101 and the seal 102 where the second injection chamber and discharge chamber are located is displaced relative to the lower discharge hole of the combined structure of the partition plate 101 and the seal 102 where the first injection chamber and discharge chamber are located. Therefore, after the plurality of injection chambers and the plurality of discharge chambers are respectively in an up-and-down communication state, from the perspective of an external observer, the plurality of injection chambers and the plurality of discharge chambers respectively form a spiral rotating structure. In this setting method, the inner cavity of each partition plate 101 and seal 102 is divided into two non-communicating injection chambers and discharge chambers. In the communication structure of the inner cavities of the plurality of partition plates 101 and seals 102, the plurality of injection chambers and the plurality of discharge chambers are respectively spirally crossed together. As a result, when the first medium flows in the core body 1, it can cross-contact the second medium in a surrounding shape from multiple angles through the core body 1 in a spiral manner, and a more uniform heat exchange efficiency can be achieved.

[0069] It should be understood that after the multiple injection chambers and the multiple discharge chambers are respectively connected, if the first medium is injected into the injection chamber from the head end of the core body 1, then, in order to prevent the first medium from discharging from the lower injection hole or the lower discharge hole at the tail end of the core body 1, the lower injection hole and the lower discharge hole on the partition plate 101 at the tail end should be closed, so that when the first medium is injected into the tail end of the core body 1, it can flow from the injection chamber at the tail end to the discharge chamber at the tail end, and then flow from the discharge chamber at the tail end to the discharge chamber at the head end, so that the first medium discharges from the upper discharge hole at the head end. Similarly, if the first medium is injected into the injection chamber from the tail end of the core body 1, then, in order to prevent the first medium from discharging from the upper injection hole or the upper discharge hole at the head end of the core body 1, the upper injection hole and the upper discharge hole on the partition plate 101 at the head end should be closed, so that when the first medium is injected into the head end of the core body 1, it can flow from the injection chamber at the head end to the discharge chamber at the head end, and then flow from the discharge chamber at the head end to the discharge chamber at the tail end, so that the first medium discharges from the lower discharge hole at the tail end.

[0070] In order to close the partition plate 101 at one end of the core body 1, in this embodiment, preferably the following two schemes are adopted:

[0071] Scheme A: Add a cover-like component (not shown in the figure). Cover one end of the core body 1 with the cover-like component, so that the injection chamber and the discharge chamber at the tail end of the core body 1 are communicated through the lower discharge hole, the inner cavity of the cover-like component, and the lower injection hole, and the cover-like component seals the partition plate 101 at the tail end of the core body 1. Conversely, how to close the partition plate 101 at the head end of the core body 1 can also be achieved by the cover-like component, which will not be elaborated here.

[0072] Scheme B: One of the combinations in the multi-layer combination is the first combination. One of the partition plates 101 in the first combination is the positioning partition plate 101. The positioning partition plate 101 is in surface contact with the housing 2. Among them, two guide holes penetrating the housing 2 are provided on the housing 2, and the two guide holes are respectively communicated with the two through holes 120 of the positioning partition plate 101 in the vertical direction;

[0073] Another combination in the multi-layer combination is the second combination. One of the partition plates 101 in the second combination is the closing partition plate 101. Among them, the distance from the closing partition plate 101 to the positioning partition plate 101 is greater than the distance from any other partition plate 101 to the positioning partition plate 101, and the closing partition plate 101 is a blind plate (not shown in the figure).

[0074] The effect of closing the partition plate 101 is achieved by modifying the partition plate 101 and the seal 102 located at the head or tail end of the core body 1. Among them, the partition plate 101 located at the head end of the core body 1 is directly set as a blind plate (not shown in the figure) to achieve the effect of closing the partition plate 101. And, in the seal 102 located at the head end of the core body 1, one of the first connecting portion 113 and the second connecting portion 114 is set in a notch shape to achieve the conduction of the injection cavity and the discharge cavity at the head end. Conversely, in the partition plate 101 located at the tail end of the core body 1, the partition plate 101 and the seal 102 are processed in the same way, which will not be elaborated here.

[0075] Adopting the above two solutions, in addition to being able to close the partition plate 101 at one end of the core body 1, it can also achieve the effect that 'when the second medium is injected into the housing 2, the second medium is blocked by the core body 1'.

[0076] In this embodiment, in order to increase the heat exchange area formed by the first medium and the second medium passing through the core body 1, the following solution is preferably adopted.

[0077] See Figure 5 or Figure 7 , a plurality of fins 121 are provided on the seal 102. Among them, any one fin 121 is respectively provided on the first annular portion 111 and / or the second annular portion 112, and any one fin 121 is respectively provided outside the surface of the combination.

[0078] Since it has been mentioned in this embodiment that the thickness of the seal 102 is increased, so that the distance between the partition plates 101 on the core body 1 in this embodiment is increased. Then, by providing the fins 121 on the seal 102, the surface area of the seal 102 (the surface area exposed on the surface of the core body 1) is increased, thereby increasing the heat exchange area formed by the first medium and the second medium passing through the core body 1, and finally improving the heat exchange efficiency formed by the first medium and the second medium passing through the core body 1.

[0079] And, see Figure 8 or Figure 9 , the core body 1 further includes a plurality of fin 131 components 122;

[0080] One fin 131 component 122 is provided between adjacent two layers of the combination;

[0081] Any one fin 131 component 122 is respectively provided with a plurality of flow channels. Any one flow channel penetrates the core body 1 in the horizontal direction, and any one flow channel is respectively a part of the external channel.

[0082] In the core body 1, a fin 131 structure is provided to increase the surface area of each layer of the core body 1 (each layer is composed of two partition plates 101 and one seal 102), and ultimately improve the heat exchange efficiency of the heat exchange structure formed by the first medium and the second medium passing through the core body 1. This is common general knowledge in the art and will not be elaborated here.

[0083] In this embodiment, the foregoing fin 131 component 122 is preferably implemented by the following scheme.

[0084] See Figure 8 or Figure 9 , the fin 131 component 122 includes a plurality of fins 131, a first heat conducting plate 132, a second heat conducting plate 133, a first conduit 134 and a second conduit 135;

[0085] A first opening 136 is provided at the center of the first heat conducting plate 132, and a second opening 137 is provided at the center of the second heat conducting plate 133;

[0086] The first heat conducting plate 132 is arranged in the horizontal direction, the second heat conducting plate 133 is arranged above or below the first heat conducting plate 132, a spacing is left between the first heat conducting plate 132 and the second heat conducting plate 133, and the first opening 136 and the second opening 137 are in a through state in the vertical direction;

[0087] The first conduit 134 and the second conduit 135 are respectively arranged between the first heat conducting plate 132 and the second heat conducting plate 133, and the first conduit 134 and the second conduit 135 respectively penetrate through the first heat conducting plate 132 and the second heat conducting plate 133;

[0088] A plurality of fins 131 are respectively arranged between the first heat conducting plate 132 and the second heat conducting plate 133 in a radial manner, and a spacing is left at both ends of two adjacent fins 131.

[0089] Among them, the first heat conducting plate 132 and the second heat conducting plate 133 are respectively used to connect one of the fins 131 in the core body 1. Since each layer of the core body 1 has two fins 131, when a fin 131 component 122 is arranged between two adjacent layers of the core body 1, the first heat conducting plate 132 is connected to one of the partition plates 101 of one layer, and the second heat conducting plate 133 is connected to one of the partition plates 101 of the other layer.

[0090] The first conduit 134 and the second conduit 135 respectively penetrate through the first heat conducting plate 132 and the second heat conducting plate 133, and when a fin 131 component 122 is arranged between two adjacent layers of the core body 1, both ends of the first conduit 134 are respectively communicated with the lower discharge port of one layer and the upper injection port of the other layer, and both ends of the second conduit 135 are respectively communicated with the lower injection port of one layer and the upper discharge port of the other layer.

[0091] A first opening 136 is provided on the first heat conducting plate 132, and a second opening 137 is provided on the second heat conducting plate 133. The purpose is to ensure that the second medium can be discharged from the middle of the core body 1 to the outside of the core body 1, avoiding the first heat conducting plate 132 and the second heat conducting plate 133 from blocking the process of the second medium discharging from the core body 1.

[0092] A plurality of fins 131 are respectively arranged radially between the first guide plate and the second guide plate. A channel for the second medium to penetrate the core body 1 is formed between two adjacent fins 131, so as to achieve the effect that the second medium is injected from the side of the core body 1 to the middle of the core body 1.

[0093] In this embodiment, the fins 131 can also be slightly protruded outside the surface of the core body 1. Specifically:

[0094] See Figures 1 to 3 , or, see Figure 11 , and any one of the fins 131 is received between two adjacent assemblies;

[0095] Wherein, any one of the fins 131 protrudes radially from the assembly;

[0096] Or, any one of the fins 131 is arranged within the horizontal contour of the assembly along the radial direction of the assembly.

[0097] Slightly protruding the fins 131 outside the surface of the core body 1 can increase the area of any one of the fins 131; when the second medium flows along the spacing between the inner surface of the housing 2 and the side surface of the core body 1, the second medium can contact any one of the fins 131, thereby improving the heat exchange efficiency of the second medium relative to the fins 131 themselves; and, during the process of the second medium discharging from the middle of the core body 1 to the outside of the core body 1, the second medium can also contact any one of the fins 131, thereby improving the heat exchange efficiency of the second medium relative to the fins 131 themselves.

[0098] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An enclosed heat exchanger, characterized in that, it includes a core body; the surface of the core body divides the core body into an internal channel and an external channel. The internal channel is used for flowing a first medium, and the external channel is used for flowing a second medium. Wherein, the first medium and the second medium form a heat exchange state through the core body; the core body is arranged in the vertical direction. The internal channel includes multiple sections of deflecting channels. The first medium respectively forms a deflecting flow state between the vertical direction and the horizontal direction through any section of the deflecting channels. The external channel penetrates the core body in the horizontal direction. Wherein, the external channel penetrates out of the core body at the upper part or the lower part of the core body; the core body includes multiple partition plates and multiple seals; any one of the partition plates is respectively circular; any one of the seals is respectively provided with a first annular part, a second annular part, a first connecting part and a second connecting part. Wherein, the diameter of the first annular part is smaller than the diameter of the second annular part. The first annular part and the second annular part are arranged in a concentric state. The first connecting part and the second connecting part are respectively used for connecting the first annular part and the second annular part; multiple partition plates are parallel to each other. The centers of multiple partition plates are respectively arranged on the same axis line. Wherein, the axis line is parallel to the vertical direction; adjacent two partition plates and one seal are set as a layer of combination body. Multiple layers of the combination bodies are arranged at intervals along the vertical direction. Wherein, one seal is arranged between two partition plates. The radial surface of one layer of the combination body is in a sealed state; any one of the partition plates is respectively provided with two through holes; the two partition plates of any one of the combination bodies are respectively an upper partition plate and a lower partition plate. The two through holes of the upper partition plate are respectively an upper injection hole and an upper discharge hole. The two through holes of the lower partition plate are respectively a lower injection hole and a lower discharge hole. The upper injection hole and the lower injection hole are respectively located on both sides of the first connecting part. The upper discharge hole and the lower discharge hole are respectively located on both sides of the second connecting part; the inner cavity of the combination body is divided into two chambers in a separated state through the first connecting part and the second connecting part. The two chambers are respectively an injection chamber and a discharge chamber. The upper injection hole and the lower injection hole are respectively in communication with the injection chamber. The upper discharge hole and the lower discharge hole are respectively in communication with the discharge chamber. The injection chamber and the discharge chamber are in a mutually isolated state; the seal is provided with multiple fins.

2. The enclosed heat exchanger according to claim 1, characterized in that, it further includes a housing; the housing covers the outside of the core body. Wherein, the core body is covered by the housing in the horizontal direction, and the upper part or the lower part of the core body is covered by the housing; the external channel penetrates the housing. Wherein, the external channel penetrates the housing along the direction from the lower part to the upper part of the housing, or along the direction from the upper part to the lower part of the housing.

3. The enclosed heat exchanger according to claim 2, characterized in that, the core body is cylindrical; The external channel penetrates the core body radially, wherein the external channel penetrates the upper or lower part of the core body axially.

4. The enclosed heat exchanger according to claim 1, characterized in that any one of the fins is respectively arranged on the first annular part and / or the second annular part, and any one of the fins is respectively arranged outside the surface of the combination body.

5. The enclosed heat exchanger according to claim 1, characterized in that the core body further comprises a plurality of fin components; one of the fin components is arranged between two adjacent layers of the combination body; any one of the fin components is respectively provided with a plurality of flow channels, any one of the flow channels penetrates the core body in the horizontal direction, and any one of the flow channels is respectively a part of the external channel.

6. The enclosed heat exchanger according to claim 5, characterized in that the fin component comprises a plurality of fins, a first heat conducting plate, a second heat conducting plate, a first conduit and a second conduit; a first opening is arranged at the center of the first heat conducting plate, and a second opening is arranged at the center of the second heat conducting plate; the first heat conducting plate is arranged in the horizontal direction, the second heat conducting plate is arranged above or below the first heat conducting plate, a distance is left between the first heat conducting plate and the second heat conducting plate, and the first opening and the second opening are in a through state in the vertical direction; the first conduit and the second conduit are respectively arranged between the first heat conducting plate and the second heat conducting plate, and the first conduit and the second conduit respectively penetrate the first heat conducting plate and the second heat conducting plate; a plurality of the fins are respectively arranged between the first heat conducting plate and the second heat conducting plate in a radial manner, and a distance is left at both ends of two adjacent fins.

7. The enclosed heat exchanger according to claim 6, characterized in that any one of the fins is accommodated between two adjacent combination bodies; wherein, any one of the fins protrudes from the combination body along the radial direction of the combination body; alternatively, any one of the fins is arranged within the horizontal contour of the combination body along the radial direction of the combination body.

8. The enclosed heat exchanger according to claim 2, characterized in that one of the multiple layers of the combination body is a first combination body, and one of the partitions of the first combination body is a positioning partition, and the positioning partition is in surface contact with the shell. Wherein, two guide holes penetrating the shell are arranged on the shell, and the two guide holes are respectively communicated with the two through holes of the positioning partition in the vertical direction; another one of the multiple layers of the combination body is a second combination body, and one of the partitions of the second combination body is a closed partition. Wherein, the distance from the closed partition to the positioning partition is greater than the distance from any other partition to the positioning partition, and the closed partition is a blind plate.

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