CN210802179U - Heat exchange plate and heat exchanger comprising same - Google Patents
Heat exchange plate and heat exchanger comprising same Download PDFInfo
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- CN210802179U CN210802179U CN201921633253.7U CN201921633253U CN210802179U CN 210802179 U CN210802179 U CN 210802179U CN 201921633253 U CN201921633253 U CN 201921633253U CN 210802179 U CN210802179 U CN 210802179U
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Abstract
The utility model discloses a heat exchange plate and a heat exchanger comprising the heat exchange plate, which solves the problem that the boundary of a circular port can not completely correspond to the linear boundary of a rectangular heat exchange plate, the heat exchange plate comprises a heat exchange area and a sealing channel, the heat exchange area comprises a medium port with four end corners, a flow guide area and a main heat exchange area, the profile of the medium port is formed by a first straight edge, a first curve, a second straight edge and a second curve section which are sequentially connected, the first straight edge and the second straight edge are respectively parallel to the transverse edge and the longitudinal edge of the heat exchange plate, the two ends of the first straight edge and the second straight edge are respectively connected through the first curve which protrudes towards the end corners and the second curve section which protrudes reversely from the first curve, through improving the compatibility of the medium port and the linear transverse edge and the longitudinal edge of the heat exchange plate, the medium port can move towards the corner of the heat exchange plate, the space between the port and the boundary of the heat exchange plate is fully, the effective heat exchange area of the heat exchange plate is increased, and the cost of the heat exchange plate is further reduced.
Description
Technical Field
The utility model relates to a heat exchanger field especially relates to a heat transfer board and contain heat exchanger of this heat transfer board.
Background
The heat exchange plate of the core element of the existing plate heat exchanger is usually rectangular, the inlet and outlet ports of media are respectively arranged at four corner positions, the heat exchange plate is matched with a pipeline better, the common port is circular, when the circular port is arranged on the rectangular heat exchange plate, the circular boundary of the port is combined with the linear boundary of the heat exchange plate, the circular boundary and the linear boundary of the heat exchange plate are difficult to completely correspond to each other, a part of space is always unavailable, the material utilization rate of the heat exchange plate is reduced, the large size of the inlet and outlet ports of the heat exchange plate and the transverse and longitudinal distance between the ports are limited, if the size of the inlet and outlet ports and the transverse and longitudinal distance between the inlet and outlet ports are increased, the width and the length size of the heat exchange plate material can only be.
SUMMERY OF THE UTILITY MODEL
The utility model provides a heat transfer board reaches heat exchanger including this heat transfer board solves the problem that circular port border and rectangle heat transfer board straight line border can not correspond completely, realizes the space between make full use of port and heat transfer board border, improves heat transfer board material utilization, reduces the purpose of heat transfer board material cost.
For solving the technical problem, the utility model discloses a technical scheme on the one hand is: a heat exchange plate comprises a heat exchange area (1) and a sealing channel (2) positioned at the periphery of the heat exchange area; the heat exchange area (1) comprises a medium port (3), a flow guide area (4) and a main heat exchange area (5), and the medium port (3), the flow guide area (4) and the main heat exchange area (5) are communicated in sequence;
the main heat exchange area (5) is positioned in the middle of the heat exchange plate;
the flow guide area (4) is positioned between the medium port (3) and the main heat exchange area (5) and is communicated with the medium port (3) and the main heat exchange area;
the media ports (3) are positioned at the ends of the heat exchange zone (1), namely are formed in the angular areas of the four ends of the heat exchange plate respectively, and the profiles of the media ports are as follows: the first straight edge (31), the first curve (33), the second straight edge (32) and the second curve section (34) are connected in sequence;
-said first straight side (31) is parallel to the transverse boundary of the heat transfer zone and said second straight side (32) is parallel to the longitudinal boundary of the heat transfer zone;
-one end point of said first (31) and second (32) straight sides is connected by a first curved line (33), the other end point of said first (31) and second (32) straight sides being connected by a second curved line section (34), forming a closed profile;
-said first curve (33) is close to the end corner of the heat transfer zone and convex in the direction of the end corner.
Further, the first straight edge (31) and the second straight edge (32) are symmetrically arranged relative to the center of the medium port.
Furthermore, the second curve section is formed by connecting curves at two sides and a third straight edge (35) in the middle, and the curves at two sides are symmetrically arranged relative to the center of the medium port.
Further, the linear distance from the first straight edge (31) to the edge of the heat exchanger plate is less than or equal to the distance from the second straight edge to the edge of the heat exchanger plate.
Further, the sealing track (2) comprises an inner boundary (21) and an outer boundary (22);
-the inner boundary (21) is formed outside the heat transfer zone (1);
-said outer boundary (22) being formed along a contour edge line of the heat exchanger plate, or said outer boundary (22) coinciding with a contour edge line of the heat exchanger plate;
the contour edge line of the heat exchange plate is formed by connecting the transverse edge (7) and the longitudinal edge (8) of the heat exchange plate end to end;
-the corner (6) is where the end points of the transverse side (7) and the longitudinal side (8) are connected, and the first straight side (31) of the media port (3) is parallel to the transverse side (7); -a second straight edge (32) of the media port is parallel to the longitudinal edge (8);
-the first straight side (31) and the second straight side (32) coincide with the inner boundary of the sealing track (2), respectively, and the first curve (33) is adjacent to the corner (6) and convex in the direction of the corner (6);
-the distance from the first straight edge (31) to the transverse edge (7) is smaller than or equal to the distance from the second straight edge (32) to the longitudinal edge (8).
Furthermore, the first straight edge (31) and the second straight edge (32) are made into a common tangent circle, namely a first virtual circle (11) is respectively tangent to the first straight edge and the second straight edge; the second curve section (34) and the first virtual circle (11) have two intersection points, and the outline of the end angle of the second curve section (34) far away from the heat exchange area is a curve protruding towards the corner direction.
Furthermore, a third straight edge (35) is arranged on the second curve section (34), and two intersection points are formed between the third straight edge (35) and the first virtual circle (11);
the center of the first virtual circle is a first center, the distance between the first straight edge and the perpendicular line of the first center is equal to the distance between the second straight edge and the first center, and the distance between the first straight edge and the perpendicular line of the first center is greater than the distance between the third straight edge and the first center.
Further, the first curve is an arc; the second curve section is an arc section at the part connected with the first straight side and the second straight side respectively.
Furthermore, a second-stage flow guide structure (41) is arranged in the flow guide area (4), a high-resistance flow guide area (410), a middle-resistance flow guide area (411) and a low-resistance flow guide area (412) are arranged in the second-stage flow guide structure (41), and the flow cross-sectional area gradually decreases along the direction from the high-resistance flow guide area (410) to the low-resistance flow guide area (412).
The utility model discloses an on the other hand of technical scheme provide a heat exchanger, it includes foretell arbitrary heat transfer board.
The utility model has the advantages and positive effects that:
a heat transfer board increase first straight flange and second straight flange in medium port department, through the compatibility that improves medium port and heat transfer board sharp horizontal limit and vertical limit, the medium port can remove to heat transfer board corner, improve the utilization ratio of the material of heat transfer slab corner, increase the effective heat transfer area of heat transfer board, and then reduce the heat transfer board cost, on the other hand, the setting of two straight flanges, can be when circular with the medium port, the space that can't utilize between medium port and horizontal limit and vertical limit sets up in the medium port, can enlarge the flow area of medium port, improve the maximum circulation that the medium port allows through, increase the application scope of same size slab medium circulation, avoid increasing the problem emergence of heat transfer board width and then incremental cost because of the restriction of the port velocity of flow. The present invention has been made in view of the above problems.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail embodiments of the present invention with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention. In the drawings, like reference numbers generally represent like parts or steps.
Fig. 1 is a schematic structural diagram of an embodiment of a heat exchange plate of the present invention.
In the figure:
1-heat exchange zone; 2-sealing the channel; 21-inner border; 22-an outer boundary; 3-a media port; 31-first straight side; 32-second straight side; 33-first curve; 34-a second curve segment; 35-third straight side; 4-a flow guide zone; 41-a second level flow guide structure; 410-high resistance flow guide area; 411-middle resistance flow guide area; 412 a low drag flow guide region; 5-a main heat exchange zone; 6-corner; 7-transverse edge; 8-longitudinal edges; 9-a first circle center; 10-space not available; 11-a first virtual circle; 12-a second virtual circle; 13-second centre of circle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the present invention and are not intended to limit the invention to the particular embodiments described herein. Based on the embodiments of the present invention described in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.
First, an example for implementing an embodiment of the present invention is described with reference to fig. 1.
Example 1
As shown in fig. 1, a heat exchange plate comprises a heat exchange region 1 and a sealing channel 2 located at the periphery of the heat exchange region 1, wherein the heat exchange region 1 comprises a medium port 3, a flow guide region 4 and a main heat exchange region 5 which are sequentially communicated, the sealing channel 2 comprises an inner boundary 21 and an outer boundary 22, the inner boundary 21 is located at the outer side of the heat exchange region 1, and the outer boundary 22 is formed by sequentially connecting a transverse edge 7 and a longitudinal edge 8 of the heat exchange plate end to end; the medium port 3 is located at the end of the heat exchange zone 1, the corner 6 is the connection of the end points of the transverse edge 7 and the longitudinal edge 8 at the inner side of the four corners 6 of the heat exchange plate, the main heat exchange zone 5 is located in the middle of the heat exchange plate, the flow guide zone 4 is located between the medium port 3 and the main heat exchange zone 5, the medium port 3 comprises a first straight edge 31 parallel to the transverse edge 7 and a second straight edge 32 parallel to the longitudinal edge 8, the first straight edge 31 and the second straight edge 32 are respectively superposed with the inner boundary 21 of the sealing channel 2, the first straight edge 31 is connected with the second straight edge 32 through a first curve 33, the first curve 33 is close to the corner 6 and protrudes towards the corner 6, and the distance from the first straight edge 31 to the transverse edge 7 is less than or equal to the distance from the second straight edge 32 to the longitudinal edge.
The plate heat exchanger is a device for heat transfer of cold and hot media, in order to realize heat exchange of the cold and hot media, a heat exchange area 1 and a sealing channel 2 positioned at the periphery of the heat exchange area are arranged on a heat exchange plate, a sealing gasket is arranged in the sealing channel 2 to prevent the medium in the heat exchange area 1 from leaking outside the heat exchange plate, the cold and hot media can enter the heat exchanger through a pipe network, in order to be better connected with a round pipeline, a medium through hole of the plate heat exchanger and a medium port 3 on a heat exchange plate sheet are designed into a round shape, but raw materials for manufacturing the heat exchange plate of the plate heat exchanger are rectangular, when the round medium port 3 is arranged at four corners, a right-angle corner 6 formed by a round boundary of the medium port 3 and a transverse edge 7 and a longitudinal edge 8 of the heat exchange plate is difficult to completely correspond, and on the premise that the sealing gasket can be arranged in the sealing channel 2, a space 10 which cannot be utilized is always reserved between the medium port 4 and the transverse edge 7 and, the space cannot be designed into the medium port 3 to increase the flow area of the medium port 3, and cannot be designed to the side of the sealing channel 2 to increase the width of the sealing channel 2, so that the space 10 cannot be utilized effectively, the effective heat exchange area of the heat exchange area 1 on the heat exchange plate is undoubtedly reduced for the heat exchange plate with a compact structure, and the material utilization rate of the heat exchange plate cannot reach the maximum;
the medium port 3 is provided with a first straight edge 31 and a second straight edge 32 which are respectively parallel to the transverse edge 7 and the longitudinal edge 8 of the heat exchange plate, the first straight edge 31 is coincided with the inner boundary 21 of the sealing channel positioned at the transverse edge 7 side, the second straight edge 32 is coincided with the inner boundary 21 of the sealing channel positioned at the longitudinal edge 8 side, a space 10 which cannot be utilized between the boundary of the circular medium port 3 and the transverse edge 7 and the longitudinal edge 8 of the heat exchange plate is designed into the medium port 3, the utilization rate of the edge area of the heat exchange plate is increased, the flow area of the medium port 3 is increased by utilizing the area of the edge area of the heat exchange plate rather than the area of the flow guide area 4 in the heat exchange area 1, the flow area of the medium port 3 is increased under the condition that the width of the heat exchange plate is limited, the maximum flow value which the heat exchange plate can pass under the width can be increased, and the condition that when a conventional circular medium, the problem that the maximum flow value which can be passed by the heat exchange plate can be increased only by increasing the width of the heat exchange plate can be solved, the cost of the heat exchanger can be reduced under the condition of large flow, the advantage that the medium port 3 is provided with the first straight edge 31 and the second straight edge 32 is fully reflected, and the technical problem that a curve medium port cannot be realized in the prior art is solved.
The distance between the first straight edge 31 and the transverse edge 7 is less than or equal to the distance between the second straight edge 32 and the longitudinal edge 8, and the first curve 33 protrudes towards the direction of the corner 6, so that the flow cross-sectional area of the medium port 3 is increased, the flow resistance of the medium at the medium port 3 is reduced, and the design of a flow guide structure of the flow guide area 4 is facilitated;
as shown in fig. 1, there are a first virtual circle 11 tangent to the first straight side 31 and the second straight side 32, respectively, and a second curved section 34 has two intersection points with the first virtual circle 11, where the first virtual circle 11 is a circular medium port disposed on a conventional heat exchange plate, and the second curved section 34 is expanded outward than a boundary point of the first virtual circle 11, i.e., toward the corner 6, so that the flow guiding region 4 can also move toward the corner 6, thereby increasing the heat exchange area of the main heat exchange region 5.
Example 2:
more specifically, as shown in fig. 1, there is a first virtual circle 11 tangent to the first straight edge 31 and the second straight edge 32, respectively, the second curved segment 34 is provided with a third straight edge 35, and the third straight edge 35 and the first virtual circle 11 have two intersection points; if the distance between the first straight edge 31 and the first circle center 9 of the first virtual circle 11 is equal to the distance between the second straight edge and the first circle center 9 and is greater than the distance between the third straight edge 35 and the first circle center 9, a second virtual circle 12 respectively tangent to the first straight line 31, the second straight line 32 and the third straight line 35 exists, the circle center of the second virtual circle 12 is 13, the second circle center 13 is necessarily obliquely above the first circle center 11, that is, the second circle center 13 is closer to the corner 6 than the first circle center, so that the transverse and longitudinal distances between the medium ports 3 and the four corners 6 are enlarged compared with the conventional circular medium ports, the position of the flow guide area 4 can be moved upwards, the area occupied by the main heat exchange area 5 is increased, and on the premise that the heat exchange plate is fixed, the heat exchange area of the heat exchange plate can be increased by 5-10% through the arrangement of the three straight edge sections of the medium ports, this result is also a result of the constant pursuit of all the technicians in the heat exchanger industry.
The distance between the first straight edge 31 and the first circle center 9 is equal to the distance between the second straight edge and the first circle center 9 and is larger than the distance between the third straight edge 35 and the first circle center 9, so that the curvature of the medium port 3 is reduced, the position of the medium port 3 close to the flow guide area 4 is flatter, when a medium flows through the medium port 3 and enters the flow guide area 4, the pressure drop gradient of the medium along the direction of the second curved section 34 is smaller, and the flow guide area 4 has the function of enabling the medium to uniformly enter the main heat exchange area 5 as much as possible after passing through the medium port 3, so that the occurrence of a bias flow and a flow dead area is prevented, and therefore, in a limited space, the medium generates a smaller pressure drop gradient after passing through the medium port 3, and the design of a flow guide structure in the flow guide.
Example 3:
more specifically than the embodiments 1 and 2, the second-stage flow guiding structure 41 is arranged in the flow guiding region 4, the high-resistance flow guiding region 410, the medium-resistance flow guiding region 411 and the low-resistance flow guiding region 412 are arranged in the second-stage flow guiding structure 41, and the flow cross-sectional area gradually decreases along the direction from the high-resistance flow guiding region 410 to the low-resistance flow guiding region 412; according to the difference of the flow length of the medium entering the main heat exchange zone 5 through the flow guide zone 4 after passing through the medium port 3, the second-stage flow guide structure 41 is arranged in the flow guide zone 4, the position far away from the medium port 3 is the position with the largest medium flow length, the low-resistance flow guide zone 412 is arranged, the medium flow resistance is the smallest at the position closest to the medium port 3, the high-resistance flow guide zone 412 is arranged, the medium resistance flow guide zone 411 is arranged between the high-resistance flow guide zone 410 and the low-resistance flow guide zone 412, the medium flow resistance through the second-stage flow guide structure 41 is realized by the flow cross-sectional areas of different resistance zones in the second-stage flow guide structure 41, the medium flow cross-sectional area of the high-resistance flow guide zone 410 is the smallest, the flow rate is the largest, the flow resistance is the largest, the medium flow cross-sectional area of the low-resistance flow guide zone 412 is the largest, the flow rate is the smallest, after the medium flows through the second flow guiding structure 41, the flow resistance of the medium in the whole flow guiding area 4 can be equalized, so that the medium enters the main heat exchange area 5 at uniform pressure, and the existence of bias flow and flow dead areas is prevented.
Example 4:
a heat exchange plate comprises a heat exchange area 1 and a sealing channel 2 positioned at the periphery of the heat exchange area; the heat exchange area 1 comprises a medium port 3, a flow guide area 4 and a main heat exchange area 5, and the main heat exchange area is positioned in the middle of the heat exchange plate;
the flow guide area is positioned between the medium port and the main heat exchange area and is communicated with the medium port and the main heat exchange area;
the media ports are located at the ends of the heat exchange zone, i.e. formed in the angular regions of the four ends of the heat exchange plate, respectively, and the profiles of the media ports are: the first straight edge 31, the first curve 33, the second straight edge 32 and the second curve section 34 are connected in sequence;
-said first straight side is parallel to the transverse boundary of the heat transfer zone and said second straight side is parallel to the longitudinal boundary of the heat transfer zone;
one end point of said first and second straight sides is connected by a first curve, and said first straight side 31 is connected to the other end point of the second straight side by a second curve, forming a closed contour;
-said first curve is close to the end angle of the heat transfer zone and is convex in the direction of the end angle.
Example 5:
more preferably than the above embodiment, the first straight side and the second straight side are symmetrically arranged with respect to the center of the media port.
Example 6:
it should be noted that, in different embodiments, the lengths of the first and second straight sides may be the same or different, and the first and second straight sides may also be asymmetrically arranged.
Example 7:
more preferably, the second curved section is formed by connecting two curves with a third straight side of the middle part, and the two curves are symmetrically arranged relative to the center of the medium port.
Example 8:
it should be noted that, in different embodiments, the second curved section may also be composed of curves with different radians, for example, the curvature of the middle section may be smaller, but may not be a straight line.
Example 9:
more preferably than the above embodiment, the distance of the straight line from the first straight edge to the edge of the heat exchanger plate is smaller than or equal to the distance from the second straight edge to the edge of the heat exchanger plate.
Example 10:
more preferably than in the above embodiments, it is,
a heat exchanger plate, the seal channel 2 comprising an inner boundary 21 and an outer boundary 22;
said inner boundary is formed outside the heat exchange zone 1;
-said outer boundary being formed along or coinciding with a contour edge line of the heat exchanger plate;
the contour edge line of the heat exchange plate is formed by connecting the transverse edge 7 and the longitudinal edge 8 of the heat exchange plate end to end;
the corner 6 is where the end points of the transverse and longitudinal sides are connected, and the first straight side of the media port 3 is parallel to the transverse side 7; the second straight side of the media port is parallel to the longitudinal side 8;
the first and second straight edges coincide respectively with the inner boundary of the sealing track, the first curve being adjacent to the corner 6, projecting in the direction of the corner;
-the distance from the first straight edge to the transverse edge is smaller than or equal to the distance from the second straight edge to the longitudinal edge.
Example 11:
more preferably, the first straight edge and the second straight edge are made into a common tangent circle, that is, a first virtual circle 11 is respectively tangent to the first straight edge and the second straight edge; the second curved section 34 is arranged to have two intersections with the first virtual circle 11, and the profile of the end corner of the second curved section remote from the heat transfer area is a curve protruding toward the corner. For example, in the diagonal direction, the contour line segment between the aforementioned two intersection points of the second curved segment is provided as a concave, corner-facing protrusion facing the flow guiding region.
Example 12:
more preferably than the above embodiment, the second curved section 34 is provided with a third straight edge 35, and the third straight edge and the first virtual circle have two intersection points;
the center of the first virtual circle is a first center, the distance between the first straight edge and the perpendicular line of the first center is equal to the distance between the second straight edge and the first center, and the distance is greater than the distance between the third straight edge and the first center.
Example 13:
more preferably than the above embodiment, the first curve is an arc; the second curve section is an arc section at the part connected with the first straight side and the second straight side respectively.
Example 14:
it should be noted that, in different embodiments, the first curve may be an arc with a variable curvature, or a curve such as a parabola.
Example 15:
more specifically, compared with the above embodiments 4 to 15, the second-stage flow guiding structure 41 is provided in the flow guiding region 4, the high-resistance flow guiding region 410, the medium-resistance flow guiding region 411, and the low-resistance flow guiding region 412 are provided in the second-stage flow guiding structure 41, and the flow cross-sectional area gradually decreases along the direction from the high-resistance flow guiding region 410 to the low-resistance flow guiding region 412.
Example 16:
a heat exchanger comprising any of the heat exchanger plates of the above embodiments.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the method of the present invention should not be interpreted as reflecting the intent: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only for the specific embodiments of the present invention or the description of the specific embodiments, the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. A heat exchange plate is characterized by comprising a heat exchange area (1) and a sealing channel (2) positioned at the periphery of the heat exchange area; the heat exchange area (1) comprises a medium port (3), a flow guide area (4) and a main heat exchange area (5), and the medium port (3), the flow guide area (4) and the main heat exchange area (5) are communicated in sequence;
the main heat exchange area (5) is positioned in the middle of the heat exchange plate;
the flow guide area (4) is positioned between the medium port (3) and the main heat exchange area (5) and is communicated with the medium port (3) and the main heat exchange area;
the media ports (3) are positioned at the ends of the heat exchange zone (1), namely are formed in the angular areas of the four ends of the heat exchange plate respectively, and the profiles of the media ports are as follows: the first straight edge (31), the first curve (33), the second straight edge (32) and the second curve section (34) are connected in sequence;
-said first straight side (31) is parallel to the transverse boundary of the heat transfer zone and said second straight side (32) is parallel to the longitudinal boundary of the heat transfer zone;
-one end point of said first (31) and second (32) straight sides is connected by a first curved line (33), the other end point of said first (31) and second (32) straight sides being connected by a second curved line section (34), forming a closed profile;
-said first curve (33) is close to the end corner of the heat transfer zone and convex in the direction of the end corner.
2. A heat exchanger plate according to claim 1, characterised in that the first (31), second (32) straight side is arranged symmetrically in relation to the centre of the media port.
3. A heat exchanger plate according to claim 1, characterised in that the second curved section is formed by a connection of two curved sides and a third straight side (35) in the middle, the two curved sides being arranged symmetrically in relation to the centre of the media port.
4. A heat exchanger plate according to claim 2, characterised in that said second curved section is formed by a connection of two curved sides and a third straight side (35) in the middle, the two curved sides being arranged symmetrically in relation to the centre of the media port.
5. A heat exchanger plate according to any one of claims 1-4, characterised in that the distance of the straight first straight edge (31) from the edge of the heat exchanger plate is less than or equal to the distance of the straight second edge from the edge of the heat exchanger plate.
6. A heat exchanger plate according to claim 1, wherein the sealing duct (2) comprises an inner (21) and an outer (22) boundary;
-the inner boundary (21) is formed outside the heat transfer zone (1);
-said outer boundary (22) being formed along a contour edge line of the heat exchanger plate, or said outer boundary (22) coinciding with a contour edge line of the heat exchanger plate;
the contour edge line of the heat exchange plate is formed by connecting the transverse edge (7) and the longitudinal edge (8) of the heat exchange plate end to end;
-the corner (6) is where the end points of the transverse side (7) and the longitudinal side (8) are connected, and the first straight side (31) of the media port (3) is parallel to the transverse side (7); -a second straight edge (32) of the media port is parallel to the longitudinal edge (8);
-the first straight side (31) and the second straight side (32) coincide with the inner boundary of the sealing track (2), respectively, and the first curve (33) is adjacent to the corner (6) and convex in the direction of the corner (6);
-the distance from the first straight edge (31) to the transverse edge (7) is smaller than or equal to the distance from the second straight edge (32) to the longitudinal edge (8).
7. A heat exchanger plate according to any one of claims 1 to 4, characterised in that the first (31) and second (32) straight sides are rounded, i.e. a first imaginary circle (11) is provided tangent to the first and second straight sides, respectively; the second curve section (34) and the first virtual circle (11) have two intersection points, and the outline of the end angle of the second curve section (34) far away from the heat exchange area is a curve protruding towards the corner direction.
8. A heat exchanger plate according to claim 7, characterised in that the second curved section (34) is provided with a third straight edge (35), said third straight edge (35) having two points of intersection with said first imaginary circle (11);
the center of the first virtual circle is a first center, the distance between the first straight edge and the perpendicular line of the first center is equal to the distance between the second straight edge and the first center, and the distance between the first straight edge and the perpendicular line of the first center is greater than the distance between the third straight edge and the first center.
9. A heat exchanger plate according to any one of claims 1 to 4, wherein said first curve is an arc; the second curve section is an arc section at the part connected with the first straight side and the second straight side respectively.
10. A heat exchanger plate according to any one of claims 1 to 4, characterised in that a second stage flow guiding structure (41) is arranged in the flow guiding region (4), and a high resistance flow guiding region (410), a medium resistance flow guiding region (411) and a low resistance flow guiding region (412) are arranged in the second stage flow guiding structure (41), and the flow cross-sectional area gradually decreases along the direction from the high resistance flow guiding region (410) to the low resistance flow guiding region (412).
11. A heat exchanger, characterized in that it comprises a heat exchanger plate according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921633253.7U CN210802179U (en) | 2019-09-28 | 2019-09-28 | Heat exchange plate and heat exchanger comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921633253.7U CN210802179U (en) | 2019-09-28 | 2019-09-28 | Heat exchange plate and heat exchanger comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210802179U true CN210802179U (en) | 2020-06-19 |
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| CN201921633253.7U Active CN210802179U (en) | 2019-09-28 | 2019-09-28 | Heat exchange plate and heat exchanger comprising same |
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