TW202120877A - A dual media safety heat exchanger - Google Patents

Abstract

The present invention relates to a dual media safety heat exchanger comprising a first medium chamber configured to allow a first medium flow through the first medium chamber, a second medium chamber configured to allow a second medium flow through the second medium chamber and an intermediate chamber arranged between the first medium chamber and the second medium chamber and being configured to separate the first medium chamber from the second medium chamber so that the first medium is prevented from being mixed with the second medium or vice versa in the circumstance of a leak within the safety heat exchanger. The first medium chamber, the second medium chamber and the intermediate chamber are arranged in a stacked manner, the first medium chamber having a first inlet and a first outlet, the second medium chamber having a second inlet and a second outlet, the first medium chamber, the second medium chamber and the intermediate chamber being defined by a plurality of chamber plates having a configuration, wherein the configuration of each chamber plate is substantially identical irrespective of which chamber it is part of. The invention also relates to a method for preparing a dual media safety heat exchanger.

Description

Dual medium safety heat exchanger

The present invention relates to a dual-medium safety heat exchanger, including:

A first medium cavity configured to allow the first medium to flow through the first medium cavity,

A second medium cavity configured to allow the second medium to flow through the second medium cavity, and

The intermediate cavity is arranged between the first medium cavity and the second medium cavity, and is configured to separate the first medium cavity from the second medium cavity, so as to prevent the first medium cavity from leaking in the safety heat exchanger The medium mixes with the second medium or prevents the second medium from mixing with the first medium,

The first medium cavity, the second medium cavity and the intermediate cavity are arranged in a stacked manner,

The first medium cavity has a first inlet and a first outlet,

The second medium cavity has a second inlet and a second outlet,

The first medium cavity, the second medium cavity and the intermediate cavity are defined by a plurality of chamber plates having a structure.

Dual-medium safety heat exchangers are known in the prior art. This technology is used to separate the working fluid to be cooled from the heat transfer medium in a heat exchanger. When using a special working fluid that cannot be mixed with the heat transfer medium, the heat exchanger is equipped with safety cavities between other medium cavities, and these safety cavities serve as buffer areas between the medium cavities.

However, due to the special construction of known heat exchangers, they may be difficult to manufacture, which may often damage the sealing of the chamber, which in turn may cause accidental leakage of working fluid and/or heat transfer medium, and thus potential fluid mixing .

Therefore, there is a need to provide an enhanced dual-medium safety heat exchanger.

The purpose of the present invention is to completely or partially overcome the above-mentioned shortcomings of the prior art. Specifically, the objective is to provide an improved dual-medium safety heat exchanger, which has enhanced fluid tightness and is easy to manufacture at the same time without compromising the heat transfer performance between the first medium and the second medium.

The above objectives and many other objectives, advantages and features will become apparent from the following description. According to the solution of the present invention, a dual-medium safety heat exchanger is implemented, which includes:

A first medium cavity configured to allow the first medium to flow through the first medium cavity,

A second medium cavity configured to allow the second medium to flow through the second medium cavity, and

The intermediate cavity is arranged between the first medium cavity and the second medium cavity, and is configured to separate the first medium cavity from the second medium cavity, thereby preventing the first medium cavity from leaking in the safety heat exchanger The medium mixes with the second medium or prevents the second medium from mixing with the first medium,

The first medium cavity, the second medium cavity and the intermediate cavity are arranged in a stacked manner,

The first medium cavity has a first inlet and a first outlet,

The second medium cavity has a second inlet and a second outlet,

The first medium cavity, the second medium cavity and the intermediate cavity are defined by a plurality of chamber plates having structures, wherein the structure of each chamber plate is substantially the same, no matter which cavity it belongs to.

According to the concept of the present invention, the structure of all chamber plates is basically the same.

By providing the same chamber plate, the production and manufacturing cost of the heat exchanger can be reduced, because one punching tool can be provided to manufacture all the chamber plates. Since the chamber plates are the same, the first medium cavity, the second medium cavity, and the intermediate cavity can be obtained by stacking the same plates on each other, but the orientation of the plates allows the first medium cavity, the second medium cavity, and the The setting of the middle cavity.

In one embodiment, each of the first medium cavity, the second medium cavity, and/or the intermediate cavity may have a predetermined volume, wherein the volume of each cavity may be at least 50% of the surface area of the chamber plate. limited. Therefore, the first medium cavity may be defined by at least 50% of the surface area of the first surface of the chamber plate, and the second medium cavity may be defined by at least 50% of the surface area of the first surface of the chamber plate, and/or The intermediate cavity may be defined by at least 50% of the surface area of the second surface of the chamber plate.

In one embodiment, the intermediate cavity may be positioned adjacent to the first medium cavity and/or the second medium cavity in the vertical direction. Therefore, the intermediate cavity may be adjacent to each of the first medium cavity and/or the second medium cavity in the heat exchanger.

In one embodiment, at least a portion of the first medium cavity and/or the second medium cavity may be defined by the first side surface of the chamber plate, wherein at least a portion of the intermediate channel may be defined by the second side surface of the chamber plate.

In one embodiment, the heat exchanger may include a first intermediate cavity and a second intermediate cavity, wherein the first intermediate cavity is in fluid communication with the second intermediate cavity. In one embodiment, the first intermediate cavity and the second intermediate cavity may be separated in the vertical direction by at least one first medium cavity or second medium cavity.

In addition, the heat exchanger may include a plurality of first medium cavities, a plurality of second medium cavities, and a plurality of intermediate cavities arranged in a stacked manner.

In addition, the chamber plate can be made of a blank.

The blank may be metal, preferably aluminum or any alloy thereof.

Moreover, the first inlet and the first outlet may extend through the stacked chamber plates and provide a first inlet channel and a first outlet channel fluidly connected to a plurality of first medium cavities, and the second inlet and the second outlet may extend through Passing through the stacked chamber plates and providing a second inlet channel and a second outlet channel in fluid connection with the plurality of second media chambers.

In addition, the first inlet passage may be configured to distribute the first medium to all the first medium chambers, and the second inlet passage may be configured to distribute the second medium to all the second medium chambers.

In addition, the first medium cavity may be arranged in parallel with respect to the first inlet channel, and the second medium cavity may be arranged in parallel with respect to the second inlet channel.

Likewise, one or more turbulators can be arranged in the first medium cavity, the second medium cavity and/or the intermediate cavity.

In addition, the intermediate cavity may include a chamber outlet, and the first medium or the second medium that eventually leaks into the intermediate cavity may be discharged from the cavity outlet.

In addition, embossments can enhance heat transfer between the cavities and provide stability to the heat exchanger structure.

In addition, reliefs can be provided on the cavity plate, and these reliefs are herringbone.

When stacking, a herringbone relief can be provided in the middle cavity.

Moreover, each chamber plate may be substantially square with four holes at its corners, and the holes are arranged to define a first inlet channel, a first outlet channel, a second inlet channel, and a second outlet channel, respectively.

In addition, the chamber plate may have a central axis, in which two holes are arranged on the first side of the central axis, and the other two holes are arranged on the second side of the central axis, the second side being relative to the center of the first side. The opposite side of the axis.

The two holes arranged on the first side serve as first holes and have a first diameter, and the two holes arranged on the second side serve as second holes and have a second diameter, the first diameter being greater than the second diameter.

In addition, the chamber plate may have a first surface and a second surface, a first edge portion is provided around the first hole, the first edge portion protrudes a first distance from the first surface, and a second edge portion is provided around the second hole, The second edge portion extends a second distance from the second surface.

Moreover, the second distance may be greater than the first distance, and preferably the second distance is at least twice the first distance.

The first end plate may be arranged on the first end of the stacked chamber plates, and the second end plate is arranged on the second end of the stacked chamber plates.

The first end plate and the second end plate may be part of a stacked plate.

In addition, the chamber plates of the heat exchanger can be welded together.

The first medium can be oil or water.

The second medium can be oil or water.

The present invention also relates to a method for manufacturing the aforementioned dual-medium safety heat exchanger, including: providing a plurality of substantially identical chamber plates,

Provide the first chamber plate,

Provide a second chamber plate,

Arrange the second surface of the first chamber plate opposite to the second surface of the second chamber plate, while aligning the first hole of the first chamber plate with the second hole of the second chamber to align the second cavity The chamber plate is stacked on the first chamber plate,

Provide a third chamber plate,

Arrange the first surface of the third chamber plate opposite to the first surface of the second chamber plate, while aligning the second hole of the second chamber plate with the second hole of the third chamber to align the third chamber The chamber plate is stacked on the second chamber plate,

Provide a fourth chamber plate,

Arrange the second surface of the third chamber plate opposite to the second surface of the fourth chamber plate, while aligning the first hole of the third chamber plate with the second hole of the fourth chamber plate to align the fourth chamber plate. The chamber plate is stacked on the third chamber plate,

Continue to stack the chamber plates in the same manner until a heat exchanger of a predetermined size is obtained; and

The chamber plates are connected in a fluid-tight manner, thereby providing a first medium cavity, a second medium cavity and an intermediate cavity.

The connection of the chamber plates can be done by welding.

In addition, the first end plate and the second end plate may be stacked with the chamber plate.

The present invention can define a heat exchanger having a longitudinal axis, wherein the heat exchanger includes a plurality of substantially identical chamber plates,

Each chamber plate includes:

A major surface facing the first vertical direction and an opposite secondary surface facing the second vertical direction,

The first short end and the opposite second short end in the longitudinal direction,

A first through hole opening with a first protrusion, a second through hole opening with a second protrusion, wherein the first and second protrusions extend in the first vertical direction,

A third through hole opening with a third protrusion, a fourth through hole opening with a fourth protrusion, wherein the third and fourth protrusions extend in the second vertical direction,

Wherein, a plurality of identical chamber plates are stacked in such a manner that the first surfaces of adjacent chamber plates face each other, and the second surfaces of adjacent chamber plates face each other.

The vertical direction may extend along a vertical axis, where the vertical axis may be substantially at right angles to the longitudinal axis. The transverse direction may extend along the transverse axis, where the transverse axis may be at right angles to the longitudinal axis and/or the vertical axis. The use of the terms "vertical", "longitudinal" and/or "transverse" can be seen in the context of the orientation of the heat exchanger and the chamber plate, where the direction is defined relative to the heat exchanger and/or chamber plate . For example, regarding the surrounding environment of the heat exchanger, the vertical axis does not necessarily have to extend in the vertical direction.

In one embodiment, the heat exchanger may have two adjacent chamber plates, wherein the first short end of one chamber plate and the second short end of the adjacent chamber plate face the same longitudinal direction.

In one embodiment, the first short end extends in a first longitudinal direction, and the opposite second short end extends in an opposite second longitudinal direction.

In one embodiment, the heat exchanger may have two adjacent chamber plates, wherein the first short end of one chamber plate faces the same longitudinal direction as the first short end of the adjacent chamber plate.

In one embodiment, the heat exchanger may have a plurality of chamber plates, wherein the first short end of the first chamber plate faces the longitudinal direction of the first short end of the second chamber plate and faces the third chamber The longitudinal direction of the second short end of the plate and facing the longitudinal direction of the second short end of the fourth chamber plate. The next chamber plate is repeated in this way, so that at least four adjacent chamber plates stacked on each other inside the heat exchanger have an orientation in the above-mentioned longitudinal direction.

In one embodiment, each chamber plate may have a first long end extending in a transverse direction and a second long end opposite to the first long end extending in an opposite transverse direction.

In one embodiment, the precise positioning of the chamber plate in the heat exchanger may define a first medium cavity, a second medium cavity, and an intermediate cavity that separates the first medium cavity from the second medium cavity.

The first vertical direction may be different from the second vertical direction, wherein the first vertical direction may extend along the vertical axis in a direction opposite to the second vertical direction.

In one embodiment, the protrusion may surround the opening in an annular manner, wherein the protrusion may have a base end facing the surface of the chamber plate and an opposite distal end. The distal end may define a distal surface of the protrusion, wherein the distal surface may be flat, and wherein the plane of the distal surface may be parallel to the plane of the major surface and/or the minor surface of the chamber plate.

In one embodiment, the first and second protrusions of one chamber plate may abut the first and second protrusions of the second chamber plate, wherein the adjacent protrusions are attached to each other so that the first chamber plate A seal is formed between the second chamber plate and the first and second through holes, optionally in the vertical direction, to provide fluid communication.

In one embodiment, the third and fourth protrusions of one chamber plate may abut the third and fourth protrusions of the second chamber plate, wherein the adjacent protrusions are attached to each other so that the first chamber plate A seal is formed between the second chamber plate and the third and fourth through holes, optionally in the vertical direction, to provide fluid communication.

In one embodiment, the first and/or second protrusion has a first height in the vertical direction, and the third and/or fourth protrusion has a second height in the vertical direction. The second height may be greater than the first height.

In one embodiment, the main surface of the chamber plate may include an annular protrusion, wherein the annular protrusion may extend along the entire peripheral portion of the chamber plate. The annular protrusion may have a third height in the vertical direction, wherein the third height may be substantially equal to the first height of the first and/or second protrusions.

In one embodiment, the annular protrusion of one chamber plate may abut the annular protrusion of the second chamber plate, wherein the adjacent protrusions are attached to each other, thereby forming a seal between the first chamber plate and the second chamber plate, And the protrusion may form the peripheral boundary of the cavity of the heat exchanger. The cavity may be a first medium cavity, a second medium cavity and/or a third (middle) medium cavity.

The present invention also relates to the use of the above-mentioned dual-medium safety heat exchanger in applications where the first medium and the second medium are not mixed.

1: Dual medium safety heat exchanger

2: first entrance

3: The first exit

4: The second entrance

5: The second exit

6: The first medium cavity

7: The second medium cavity

8: Intermediate cavity

9,9’,9-1,9-2,9-3,9-4: chamber plate

10: First side

11: second side

12: The first hole

13: second hole

14: The first surface

15: second surface

16: first edge part

17: The second edge part

18: The first end plate

19: The second end plate

20: first end

21: second end

22: Embolic components

23: raised part

24: edge part

25: recess

26: Chamber exit

27: The first entrance channel

28: The first exit channel

29: The second exit channel

30: The first medium

31: second medium

32: relief

40: safe passage

101: First upper boundary

102: The first lower boundary

103: Third Upper Boundary

104: The second lower boundary

105: Peripheral end

107: open

110: Arrow or flow

111: Arrow or Flow

120: first short end

121: second short end

200,200’: End plate

201: first vertical end

202: second vertical end

203: first hole

204: second hole

205: first edge surface

206: second edge surface

207: First Surface

208: second surface

209: first short end

210: second short end

211: Embolic Parts

212: Inlet coupling part

D1: first diameter

D2: second diameter

h1: first height

h2: second height

The present invention and its many advantages will be described in more detail below with reference to the attached schematic diagrams. For illustrative purposes, these schematic diagrams show some non-limiting embodiments, in which:

Figure 1 shows the dual-medium safety heat exchanger according to the present invention;

Figure 2 shows a partial exploded view of the dual-medium safety heat exchanger of Figure 1;

Figure 3 shows a cross-sectional view of the dual-medium safety heat exchanger of Figure 1;

Figure 4 shows another cross-sectional view of the dual-medium safety heat exchanger of Figure 1;

Figure 5 shows a cross-sectional view of Figure 4 with a first medium and a second medium;

Fig. 6 shows a partial exploded view of the dual-medium safety heat exchanger of Fig. 1, which shows the flow of the first medium and the second medium;

Figure 7 shows another embodiment of the dual-medium safety heat exchanger;

Figures 8a and 8b show an embodiment of a chamber plate and a cross-sectional view of two connected chamber plates;

Figure 9 shows the end plate used for the heat exchanger; and

Figure 10 shows an exemplary heat exchanger in perspective and partial cross-sectional views.

All the drawings are highly schematic and not necessarily drawn to scale, and they only show parts necessary to clarify the present invention, and other parts are omitted or only implied.

Figure 1 shows the dual-medium safety heat exchanger 1 in a perspective view. The dual-medium safety heat exchanger 1 is configured to allow the first medium and the second medium to flow through the heat exchanger 1.

The dual-medium safety heat exchanger 1 includes a first inlet 2 and a first outlet 3. The first inlet 2 and the first outlet 3 are in fluid communication with a first medium chamber (not shown) or a plurality of first medium chambers to allow the first medium to flow through the heat exchanger 1. The dual-medium safety heat exchanger 1 further includes a second inlet 4 and a second outlet 5. The second inlet 4 and the second outlet 5 are in fluid communication with a second medium chamber (not shown) or a plurality of second medium chambers to allow the second medium to flow through the heat exchanger 1.

The dual-medium safety heat exchanger 1 according to the present invention includes a plurality of first medium cavities, a plurality of second medium cavities, and a plurality of intermediate cavities arranged between adjacent first and second medium cavities. The cavity separates the first medium cavity and the second medium cavity to prevent the first medium from mixing with the second medium or to prevent the second medium from mixing with the first medium in the event of leakage in the safety heat exchanger 1. The plurality of first medium cavities, the plurality of second medium cavities and the plurality of intermediate cavities are advantageously stacked on each other. The configuration of the dual-medium safety heat exchanger 1 will be further described below.

In FIG. 2, a partial exploded view shows the dual-medium safety heat exchanger 1. The dual-medium safety heat exchanger 1 includes: a first medium cavity 6 configured to allow the first medium to flow through the first medium cavity 6; A second medium cavity 7 configured to allow the second medium to flow through the second medium cavity 7; and an intermediate cavity 8 arranged between the first medium cavity 6 and the second medium cavity 7. As described above, the intermediate cavity 8 is configured to transfer the first medium The cavity 6 is separated from the second medium cavity 7 to prevent the first medium from mixing with the second medium or to prevent the second medium from mixing with the first medium in the event of leakage in the safety heat exchanger 1.

As shown in Fig. 2, the first medium cavity 6, the second medium cavity 7 and the intermediate cavity 8 are arranged in a stacked manner. The heat exchanger 1 may include a plurality of first medium cavities 6, a plurality of second medium cavities 7, and a plurality of intermediate cavities 8, so as to be configured to meet specific heat transfer requirements and applications.

The first medium cavity 6, the second medium cavity 7 and the intermediate cavity 8 are defined by a plurality of chamber plates 9 having a structure. Regardless of which of the cavities 6, 7, and 8 the chamber plate 9 belongs to, the structure of each chamber plate 9 is basically the same, that is, each chamber plate and its adjacent chamber plate are basically the same.

The term "configuration" refers to the design and arrangement of the chamber plate.

The first medium cavity 6 and/or the second medium cavity 7 may be in fluid communication with at least one of the first inlet, the second inlet, the first outlet, and/or the second outlet. The intermediate cavity may be in fluid communication with the outlet of the cavity. When the heat exchanger 1 is working normally, the intermediate chamber may not be in fluid communication with the first inlet, the second inlet, the first outlet, and/or the second outlet, and/or may not be in fluid communication with the first medium chamber and/or the second medium chamber. The medium chamber is in fluid communication.

The chamber plate 9 can be made of a blank. The blank is metal, preferably aluminum or any alloy thereof.

In this embodiment, each chamber plate 9 is substantially square or formed into a rectangle, having a first long side, a second long side, a first short side, and a second short side, wherein the chamber plate is provided with Four holes, one hole in each corner. The holes are configured to define a first inlet channel, a first outlet channel, a second inlet channel, and a second outlet channel, respectively.

The chamber plate 9 has a central (longitudinal) axis A, a vertical axis B and a transverse axis C, wherein two holes are arranged on the first side 10 of the central axis, and the other two holes are arranged on the second side 11 of the central axis. on. The second side 11 is the side opposite to the first side 10 with respect to the central axis A. Arranged in the The two holes on one side 10 are the first holes 12 with the first diameter D1, and the two holes arranged on the second side 11 are the second holes 13 with the second diameter D2. The first diameter D1 is larger than the second hole 13 Diameter D2.

In addition, the chamber plate 9 has a first surface 14 and a second surface 15, a first edge portion 16 is disposed around the first hole 12, and the first edge portion 16 protrudes from the first surface 14 and has a first height h1. The second edge portion 17 is provided around the second hole 13, and the second edge portion 17 protrudes from the second surface 15 and has a second height h2. The second distance is greater than the first distance, and preferably the second distance is at least twice the first distance. Thereby, when the chamber plates 9 are stacked in a correct manner, the second edge portion 17 can protrude upward into (into) the first hole 12.

According to the present disclosure, the height h1 and/or h2 may be defined as the distance from the near surface of the protrusion to the end in the vertical direction. Alternatively, the height h1 and/or h2 may be defined as the distance from the far surface of the protrusion to the end in the vertical direction. The near surface can be regarded as the surface closest to the protrusion, and the far surface can be regarded as the surface furthest from the protrusion.

The first edge portion 16 may have a first upper boundary 101, and the second edge portion 17 may have a first lower boundary 102, wherein when the chamber plates are stacked in such a manner that the second edge portion extends into the first hole 12, the first An upper boundary may be coplanar with the second upper boundary. In addition, when the second edge portion extends into the first hole 12, the height of the convex portion 23 may be substantially equal to the height of the first edge portion, so that the third upper boundary 103 of the convex portion 23 is separated from the first edge portion 16 The first upper boundary 101 and/or the first lower boundary 102 of the second edge portion 17 are coplanar.

The following will further describe how to stack a plurality of chamber plates 9 to provide a first medium cavity, a second medium cavity and an intermediate cavity.

The heat exchanger 1 also includes a first end plate 18 arranged on the first end 20 of the stacked chamber plates 9 and a second end plate 19 arranged on the second end 21 of the stacked chamber plates 9, thereby First end plate 18 and the second end plate 19 are part of the stacked chamber plates constituting the heat exchanger 1. In this embodiment, the first end plate 18 and the second end plate 19 are different from the chamber plate 9 but are made to have the same size as the chamber plate. The end plates 18, 19 may also be a defined part of the first medium cavity, the second medium cavity or the intermediate cavity. In this embodiment, the first end plate 18 includes a first inlet 2, a first outlet 3, a second inlet 4 and a second outlet 5. In this embodiment, the second end plate 19 has four plug members 22 configured to close the first inlet channel, the first outlet channel, the second inlet channel, and the second outlet channel.

Each chamber plate 9 also has a convex portion 23 protruding from the first surface 14 and extending close to the outer periphery of the chamber plate 9. The convex portion 23 may terminate at the second upper boundary 103 in the vertical direction. The convex portion 23 may extend along the entire peripheral end 105 of the chamber plate in a plane.

Each chamber plate 9 also has an edge portion 24 protruding from the second surface 15 and extending around the outer periphery of the chamber plate 9. The edge portion 24 is arranged closer to the outer periphery than the convex portion 23. The edge portion has a second lower boundary 104, wherein the lower boundary extends along the entire peripheral end 105 of the chamber plate 9 in a plane. The first lower boundary 102 of the second edge portion 17 extends in the vertical direction to be farther from the second surface 15 than the second lower boundary 104 of the edge portion 24.

The convex portion 23 and the edge portion 24 are configured to provide a space between the adjacent chamber plates 9 when they are stacked, thereby forming a cavity between the chamber plates 9.

In this embodiment, the edge portion 24 includes two recesses 25. When the chamber plates 9 are stacked, the recess 25 provides two chamber outlets 26 of the intermediate chamber 8. The chamber outlet 26 is configured to discharge the first medium or the second medium that eventually leaks from the adjacent first medium chamber and/or the adjacent second medium chamber into the intermediate chamber.

The heat exchanger may include a first intermediate cavity and a second intermediate cavity, wherein the first intermediate cavity 8 is in fluid communication with the second intermediate cavity 8 via the first hole 12. When the chamber plates 9 are stacked, the first intermediate chamber and the second The fluid communication between the two intermediate cavities may be achieved through the opening 107 (safe passage 40 in FIG. 8B). The opening 107 is defined as the diameter of the first edge portion 16 when the second edge portion 17 extends into the first hole 12 The diameter D2 of D1 and the second edge portion 17 differs in size in the radial direction. Therefore, the opposed first edge portions 16 of the two abutting chamber plates are connected to each other to form a first leak-proof seal, and the opposed second edge portions 17 extending through the opposed first holes 12 are connected to each other to form The second leak-proof seal, wherein the first hole allows fluid communication between the first intermediate cavity and the second intermediate cavity, and the second leak-proof seal allows between two first medium cavities and/or two second mediums Fluid communication between the cavities.

Each chamber plate 9 may have a configuration in which the first surface 14 includes a first hole 12 and a second hole 12, wherein the hole has a first edge portion 16 extending in an annular manner around the opening of the hole, wherein the first surface 14 An edge portion 16 extends from the first surface 14 and away from the first surface 14 in the vertical direction. The second surface 15 may include a first hole 13 and a second hole 13, wherein the hole has a second edge portion 17 extending away from the second surface 15 in the vertical direction from the second surface. Therefore, the direction in which the first edge portion 16 on the first surface 14 extends in the vertical direction is opposite to the direction of the second edge portion 17 on the second surface 15.

The first edge portion 16 on the first surface 14 and the second edge portion 17 on the second surface 15 are configured as when the first surface 14 of the first chamber plate 9 is arranged to face the first surface of the second chamber plate. When surface 14, the end portions (in the vertical direction) are arranged to abut each other in the vertical direction. Similarly, when the second surface 15 of the first chamber plate 9 is opposed to each other in the vertical direction, the second edge portion 17 on the second surface 15 of the first chamber plate 9 is arranged to abut in the vertical direction. Connected to the second edge portion 17 on the second surface 15 of the second chamber plate. Therefore, the abutting edges 16 and 17 can be used to provide fluid communication from one surface of the first chamber plate 9 to the opposite surface of the second chamber plate 9.

Due to the difference in the height h2 of the first edge portion 16 and the height h1 of the second edge portion 17, and since the second edge portion 17 passes through the hole 12, the first chamber plate and the second chamber plate having the second surface 15 opposite to each other The chamber plate may have third and fourth chamber plates 9 located between the first and second chamber plates 9 in the vertical direction, wherein the third and fourth chamber plates 9 have second surfaces opposite to each other . In addition, the first side of the third chamber plate 9 may face the first side of the first chamber plate 9, and the first side of the fourth chamber plate 9 may face the first side of the second chamber plate 9 .

This means that when the order of the four chamber plates in the vertical direction in this example is first, third, fourth, and second, if the vertical axis extends downward through the chamber in the vertical direction Plate, the vertical axis intersects the first surface 14 of the first chamber plate 9, then intersects the second surface 15 of the third chamber plate 9, and then intersects the first surface 14 of the fourth chamber plate 9, It then intersects the second surface 15 of the third chamber plate 9.

In other words, when there are a plurality of chamber plates stacked on each other, the vertical axis alternately intersects the first surface and the second surface of the chamber plate in the vertical direction. Therefore, the vertical axis from the top intersects the first surface 14 on the first chamber plate 9, intersects the second surface on the subsequent chamber plate 9, and then intersects the first surface on the subsequent chamber plate ,and many more.

Therefore, the same chamber plates can be stacked in a predetermined manner, wherein the orientation of the chamber plates allows the holes and edges to match to abut each other.

The chamber plate 9 may have a first short end 120 and a second short end 121. It can be seen that the chamber plates 9-1 and 9-2 have first short ends 121 facing the same longitudinal direction, and the chamber plate 9- The first short ends 121 of 3 and 9-4 face opposite longitudinal directions. The first surfaces 14 of the chamber plates 9-1 and 9-2 are opposed to each other, and the second surfaces 15 of the chamber plates 9-2 and 9-3 are opposed to each other, and the first surfaces of the chamber plates 9-3 and 9-4 are opposed to each other. The surfaces face each other. Therefore, the orientation of the chamber plates relative to each other can define a specific fluid cavity and/or fluid communication channel.

It can be seen here that the chamber plates 9-2 and 9-3 respectively have a first end 120 and a second end 121 facing the same longitudinal direction, so as to ensure that the first edge portion 16 of the first hole 12 abuts each other. The chamber plates 9-1 and 9-4 respectively have a first end 120 and a second end 121 facing the same longitudinal direction, so as to ensure that the second edge portions 17 of the second hole 13 abut each other while passing through the chamber. The first hole 12 of the plates 9-2 and 9-3.

Figures 3 and 4 show the heat exchanger 1 in two different cross-sectional views. The chamber plates 9 are stacked to provide a first medium cavity, a second medium cavity, and an intermediate cavity.

FIG. 3 shows a cross-sectional view along the longitudinal extension direction of the heat exchanger 1. As mentioned above, the first medium cavity has a first inlet 2 and a first outlet 3. In this embodiment, the first inlet 2 and the first outlet 3 extend through the stacked chamber plates 9 and provide a first inlet channel 27 and a first outlet channel 28 fluidly connected to a plurality of first medium chambers.

Likewise, the second medium chamber has a second inlet and a second outlet. In this embodiment, the second inlet and the second outlet extend through the stacked chamber plates 9 and provide a second inlet channel (not shown) and a second outlet channel fluidly connected to a plurality of second media chambers.

Figure 4 also shows another cross-sectional view. The first inlet 2 and the first inlet passage 27 and the second outlet 5 and the second outlet passage 29 are shown.

Figure 4 also shows how to stack the same chamber plates 9 to provide a heat exchanger 1, a first end plate 18 and a second end plate 19. As shown in the figure, the raised portions 23 of two adjacent chamber plates 9 abut, and the edge portions 24 of two adjacent chamber plates 9 also abut to provide a cavity between them.

In addition, the second edge portion 17 is configured to abut another second edge portion of the other chamber plate 9 in a position where the other two chamber plates 9 are sandwiched therebetween. Therefore, the abutment of the two second edge portions provides a passage through the chamber plate 9.

Preferably, all the chamber plates 9 and the end plates 18, 19 are welded together in a sealed (leak-proof) manner. In this cross-sectional view, the height of the protruding first and second edge portions 16, 17 is shown (see also Fig. 2).

FIG. 5 shows the same cross-sectional view as FIG. 4, in which the first medium 30 and the second medium 31 flow in the heat exchanger 1. The first inlet passage 27 is configured to distribute the first medium 30 to all the first medium chambers 6. The second inlet channel (not shown) is configured in the same way to distribute the second medium to all the second medium chambers. In Fig. 5, the second outlet channel 29 and the second medium chamber 7 are shown. Between the first medium cavity 6 and the second medium cavity 7, an intermediate cavity 8 is arranged to provide safety for the heat exchanger 1. The intermediate cavity 8 can be regarded as being located between the first medium cavity 6 and the second medium cavity, wherein the intermediate cavity 8 can be in fluid communication with the surrounding volume (such as air) of the heat exchanger through the cavity outlet 26, as shown in FIG. 2 .

As shown in FIG. 5, the first medium cavity 6 is arranged in parallel with respect to the first inlet channel 27. The second medium cavity (not shown) is arranged in parallel with respect to the second inlet channel in the same manner.

FIG. 6 shows the flow of the first medium 30 and the second medium 31 through the heat exchanger 1 in a partially exploded view. The first medium 30 enters the first inlet passage through the first inlet 2 and then enters the first medium chamber 6, and from there, it is led out from the heat exchanger 1 to the first outlet 3 via the first outlet passage. In the same way, the second medium 31 enters the second inlet passage through the second inlet 4, and thereafter enters the second medium chamber 7, and from there, it is led out from the heat exchanger 1 to the second outlet 5 through the second outlet passage.

In order to enhance the heat transfer between the first medium and the second medium, the two mediums pass through the heat exchanger 1 in countercurrent.

In order to enhance heat transfer, one or more turbulators (not shown) may be arranged in the first medium cavity, the second medium cavity and/or the intermediate cavity.

The flow inside the intermediate cavity 8 can be indicated by an arrow 110, for example, and the fluid inside the intermediate cavity 8 can flow out of the intermediate cavity via the cavity outlet 26, and enter the surrounding environment as indicated by an arrow 111. Therefore, if the stream 111 is the first medium and/or the second medium, the leakage inside the heat exchanger can be confirmed. However, the flow 110 in the intermediate cavity and the flow 111 flowing out of the intermediate cavity can also be air or any other gas around the heat exchanger, because the internal volume of the intermediate cavity can be in fluid communication with the surrounding environment of the heat exchanger.

FIG. 7 shows another embodiment of the heat exchanger 1. The structure of the heat exchanger 1 is basically the same as the above-mentioned heat exchanger. In this embodiment, a plurality of embossments 32 are provided on the cavity plate 9. Therefore, when the chamber plates are stacked in a predetermined process, the relief 32 is configured to abut in the intermediate cavity 8, thereby enhancing the heat transfer through the intermediate cavity 8. The relief 32 also provides structure for the heat exchanger 1.

In Fig. 8a, the chamber plate 9 is shown in a plan view. A plurality of reliefs 32 are provided in the cavity plate 9. In addition, the chamber plate has the same configuration as described above, for example, it is provided with a first inlet 2, a first outlet 3, a second inlet 4, and a second outlet 5. In this view, it can be seen that the first edge portion 16 surrounds the second edge portion 17, and the first and second edge portions are separated by a safety channel 40.

In Fig. 8b, a cross-sectional view taken along line VIIIB of Fig. 8a is shown. Two chamber plates 9 having a plurality of reliefs 32 are stacked in a predetermined manner. In the enlarged view, the ridges 32 of two adjacent chamber plates 9 abut, so that the middle cavity 8 has an enhanced heat transfer and structure. In addition, a detailed enlarged view of the chamber plate 9 adjacent to the second inlet 4 and the second outlet 5 is shown. It is shown that the second edge portion 17 having a height h2 protrudes to the same height as the first edge portion 16 having a lower height h1. There is a safety passage 40 around the second edge portion 17. Therefore, when another set of chamber plates 9 is placed on top of the first set of chamber plates 9, the connection between the first edge portion 16 and the connection between the second edge portion 17 are separated by the safety channel 40. Therefore, if one of the connections leaks, the leak will flow into the safety channel 40 and flow out.

In this embodiment, the relief 32 is shown as a chevron. Other configurations of relief can also be used.

Figure 9 shows an end plate 200 for a heat exchanger, where the end plate 200 can be configured to be located outside the last chamber plate 9 in the vertical direction, located at the first vertical end 201 and the first vertical end of the heat exchanger 1 On the second vertical end 202, as shown in FIG. The end plate 200 has a first surface 207 and a second surface 208 on opposite sides of the end plate 200, and a first short end 209 and a second short end 210. The end plate 200 may include two first holes 203 and two second holes 204, wherein the holes 203, 204 are vertically aligned with the holes 12, 13 of the chamber plate. When the end plate 200 provides an end for the stacked chamber plate 9, the first hole 203 can be regarded as having a first edge surface 205 and a second edge surface 206, where the first edge surface 205 is used to abut the chamber plate 9 The first edge portion 16 of the first hole 12, and the second edge surface 206 is used to abut the second edge portion 17 of the second hole 13 of the chamber plate 9.

When the end plate 200 is arranged on the stacked chamber plate 9, the first surface 207 of the end plate 200 faces the first surface 14 of the chamber plate 9 so that the first edge surface 205 abuts the adjacent chamber plate The first upper boundary 101 of the second edge surface 206 abuts the first lower boundary 102 of the subsequent chamber plate 9 away from the first surface 207 of the end plate 200 in the vertical direction. Thereafter, the inlets 2, 4 and/or outlets 3, 5 of the heat exchanger 1 can be plugged or closed from the vertical direction of the second surface of the end plate 200, wherein the plug member 211 is configured to close the first inlet channel, The first outlet channel, the second inlet channel and/or the second outlet channel.

Similarly, the end plate 200 can be arranged on the opposite vertical part of the heat exchanger 1 as the end plate 200', wherein the first surface 207 of the second end plate 200' faces the first surface 14 of the end plate 9', The manner in which the end plate 9'abuts against the second end plate 200' is similar to that of the opposite end plate 200.

The first end plate 200 and the second end plate 200' may be the same, but for these two end plates, as shown in the embodiment in FIG. 10, the first short end 209 and the second end of the first end plate 200 The second short ends 210 of the plate 200' face the same vertical direction, and the first surface 207 of the first end plate 200 faces the first surface 207 of the second end plate 200'.

The second end plate 200' may be provided with an inlet coupling portion 212 that allows the heat exchanger 1 to be attached to supply the first and/or second medium fluid and to remove the first and/or second medium fluid from the heat exchanger. Or the second medium fluid pipeline or pipeline. The inlet coupling part is similar to the inlets 2, 4 and outlets 3, 5 shown in FIG. 1.

The first medium may be a medium that must be processed, for example, cooled. The second medium may be a heat transfer medium for cooling the first medium.

In one embodiment, the dual-medium safety heat exchanger can be made as follows:

Provide multiple chamber plates that are basically the same,

Provide the first chamber plate,

Provide a second chamber plate,

Arrange the second surface of the first chamber plate opposite to the second surface of the second chamber plate, while aligning the first hole of the first chamber plate with the second hole of the second chamber plate to align the second The chamber plate is stacked on the first chamber plate,

Provide a third chamber plate,

Arrange the first surface of the third chamber plate opposite to the first surface of the second chamber plate, while aligning the second hole of the second chamber plate with the second hole of the third chamber to align the third chamber The chamber plate is stacked on the second chamber plate,

Provide a fourth cavity plate,

Arrange the second surface of the third chamber plate opposite to the second surface of the fourth chamber plate, while aligning the first hole of the third chamber plate with the second hole of the fourth chamber plate to align the fourth chamber plate. The chamber plate is stacked on the third chamber plate,

Continue to stack the chamber plates in the same manner until a heat exchanger of a predetermined size is obtained; and

The chamber plates are connected in a fluid-tight manner, thereby providing a first medium cavity, a second medium cavity and an intermediate cavity.

Advantageously, the connection of the chamber plates can be performed by welding.

Although the present invention has been described above in conjunction with the preferred embodiments of the present invention, it is obvious to those having ordinary knowledge in the technical field that, without departing from the present invention defined by the appended claims, a variety of modify.

1: Dual medium safety heat exchanger

2: first entrance

3: The first exit

4: The second entrance

5: The second exit

Claims (15)

A dual-medium safety heat exchanger, including A first medium cavity configured to allow the first medium to flow through the first medium cavity, A second medium cavity configured to allow the second medium to flow through the second medium cavity, and An intermediate cavity, which is arranged between the first medium cavity and the second medium cavity, and is configured to separate the first medium cavity from the second medium cavity, so that leakage occurs in the safety heat exchanger Prevent the first medium from mixing with the second medium or prevent the second medium from mixing with the first medium, wherein, The first medium cavity, the second medium cavity and the intermediate cavity are arranged in a stacked manner, The first medium cavity has a first inlet and a first outlet, The second medium cavity has a second inlet and a second outlet, The first medium cavity, the second medium cavity, and the intermediate cavity are defined by a plurality of chamber plates having structures, wherein the structure of each of the chamber plates is substantially the same regardless of which cavity they belong to. The dual-medium safety heat exchanger according to claim 1, wherein the heat exchanger includes a plurality of first medium cavities, a plurality of second medium cavities, and a plurality of intermediate cavities arranged in a stacked manner. The dual-medium safety heat exchanger according to claim 1 or 2, wherein the chamber plates are made of blanks. The dual-medium safety heat exchanger according to claim 3, wherein the material is metal, preferably aluminum or any alloy thereof. The dual-medium safety heat exchanger according to any one of the preceding claims, wherein the first inlet and the first outlet extend through the stacked chamber plates, and provide fluid communication with the first medium chambers. Connected first inlet channel and first outlet channel; the second inlet and the second outlet extend through The stacked chamber plates provide second inlet channels and second outlet channels fluidly connected with the second medium chambers. The dual-medium safety heat exchanger according to claim 5, wherein the first inlet passage is configured to distribute the first medium to all the first medium chambers, and the second inlet passage is configured to distribute the second medium The medium is distributed to all such second medium chambers. The dual-medium safety heat exchanger according to claim 5 or 6, wherein the first medium cavities are arranged in parallel with the first inlet channel, and the second medium cavities are arranged in parallel with the second inlet channel . The dual-medium safety heat exchanger according to any one of the preceding claims, wherein a plurality of embossments have been provided in the chamber plates, and the embossments are in a herringbone shape. The dual-medium safety heat exchanger according to claim 5, wherein each of the chamber plates is substantially square, and the corners of each of the chamber plates are provided with four holes, and the holes are respectively arranged to define the first An inlet channel, the first outlet channel, the second inlet channel, and the second outlet channel. The dual-medium safety heat exchanger according to claim 9, wherein the chamber plate has a central axis, two of the holes are arranged on the first side of the central axis, and the other two of the holes The hole is arranged on the second side of the central axis; the second side is the opposite side of the first side with respect to the central axis. The dual-medium safety heat exchanger according to claim 9 and/or 10, wherein the two holes arranged on the first side are first holes having a first diameter, and the two holes arranged on the second side The two holes are second holes having a second diameter, the first diameter being greater than the second diameter. The dual-medium safety heat exchanger according to any one of claims 9 to 11, wherein the chamber plate has a first surface and a second surface, and a plurality of first edges are provided around the first holes Partly, the first edge parts protrude from the first surface by a first distance, a plurality of second edge parts are arranged around the second holes, and the second edge parts extend a second distance from the second surface. The dual-medium safety heat exchanger according to claim 12, wherein the second distance is greater than the first distance, and preferably, the second distance is at least twice the first distance. The dual-medium safety heat exchanger according to any one of the preceding claims, wherein the first end plate is arranged at the first end of the stacked chamber plates, and the second end plate is arranged at the stacked chambers The second end of the chamber plate. A method for preparing the dual-medium safety heat exchanger according to any one of the preceding claims, comprising: Provide multiple chamber plates that are basically the same, Provide the first chamber plate, Provide a second chamber plate, The second surface of the first chamber plate is arranged opposite to the second surface of the second chamber plate, and the first holes of the first chamber plate and the second chamber plate are at the same time Wait for the second holes to be aligned to stack the second chamber plate on the first chamber plate, Provide a third chamber plate, The first surface of the third chamber plate is arranged opposite to the first surface of the second chamber plate, and the second holes of the second chamber plate are at the same time as the third chamber plate. Wait for the second holes to be aligned to stack the third chamber plate on the second chamber plate, Provide a fourth chamber plate, The second surface of the third chamber plate is arranged opposite to the second surface of the fourth chamber plate, and the first holes of the third chamber plate and the fourth chamber plate are at the same time Wait for the second holes to be aligned to stack the fourth chamber plate on the third chamber plate, Continue to stack the chamber plates in the same way until a heat exchanger of the predetermined size is obtained, and The chamber plates are connected in a fluid-tight manner to provide the first medium chambers, the second medium chambers and the intermediate chambers.

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