CN111765785A

CN111765785A - Heat exchanger and heat exchange device

Info

Publication number: CN111765785A
Application number: CN201910254425.8A
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2019-03-31
Filing date: 2019-03-31
Publication date: 2020-10-13
Anticipated expiration: 2039-03-31
Also published as: CN111765785B

Abstract

The utility model provides a heat exchanger, the heat exchanger includes the heat exchanger core, the heat exchanger core includes first core portion, second core portion and third core portion at least, first core portion, second core portion and the range upon range of setting of third core portion, first core portion, second core portion, third core portion are the range upon range of formation of slab, the third core portion is located first core portion with between the second core portion, first core portion is the unilateral flow form, the second core portion is the diagonal flow form, the conversion of the runner form of first core portion and second core portion can be realized to the third core portion, and third core portion and first core portion, the range upon range of setting of second core portion simultaneously, and heat exchange efficiency is better.

Description

Heat exchanger and heat exchange device

Technical Field

The invention relates to the technical field of heat exchange equipment.

Background

The plate heat exchangers can be divided into a single-side flow heat exchanger as shown in fig. 23 and a diagonal flow heat exchanger as shown in fig. 24 according to the flow path of the heat exchange medium on the plates.

A single-side flow heat exchange mode or a diagonal flow heat exchange mode is determined in the plate heat exchanger, and the corresponding interface position of the heat exchanger is also determined. When the heat exchanger is limited by space or external pipelines and other reasons, the positions of the inlet and outlet interfaces are fixed, and a simple single-side flow heat exchanger or a diagonal flow heat exchanger cannot meet the requirement that a diagonal flow form and a single-side flow form exist in one plate heat exchanger at the same time. However, after the plate heat exchangers are stacked, different fluids need to flow into the adjacent plates, and the fluids between the adjacent plates need to exchange heat, so that the difficulty of a diagonal flow mode and a single-side flow mode exists in one plate heat exchanger at the same time. Therefore, in order to realize the change of the positions of the inlet and outlet interfaces, two plate heat exchangers are generally needed, one of the two plate heat exchangers is in a unilateral flow form, the other is in a diagonal flow form, and a flow passage switching structure is arranged between the two plate heat exchangers to change the flow direction of fluid. In addition, fluid enters another heat exchanger after passing through the flow channel switching structure from one heat exchanger, and the heat exchange efficiency of the whole structure is influenced to a certain extent because the fluid heat exchange cannot be carried out in the flow channel switching structure.

Disclosure of Invention

In order to solve the technical problems, the technical scheme of the invention provides the heat exchanger and the heat exchange device, and the heat exchanger and the heat exchange device have compact structures and better heat exchange efficiency.

A heat exchanger comprising a heat exchanger core including at least a first core portion, a second core portion, and a third core portion, the first core portion, the second core portion, and the third core portion being stacked, the first core portion, the second core portion, and the third core portion being formed by stacking sheets, the third core portion being located between the first core portion and the second core portion, the first core portion being in a single-side flow form, the second core portion being in a diagonal flow form, the first core portion having a first porthole, the second core portion having a second porthole, the heat exchanger core having a first side portion and a second side portion, the first side portion being disposed opposite the second side portion, the first porthole, the second porthole being disposed adjacent the first side portion, the first porthole being disposed out of alignment with the second porthole in a stacking direction of the heat exchanger core, the third core part is provided with a first hole and a second hole, the first hole and the second hole are arranged in a non-aligned mode in the lamination direction of the heat exchanger core, the second hole is communicated with the first hole channel, the first hole is communicated with the second hole channel, the third core part is provided with at least a first blocking part and a second blocking part, the first blocking part is located at a position corresponding to the second hole channel, the second blocking part is located at a position corresponding to the first hole channel, the third core part is provided with at least a first plate and a second plate, at least part of the first blocking part is located on the first plate, and at least part of the second blocking part is located on the first plate and/or the second plate;

in the stacking direction of the heat exchanger, the first blocking part blocks the flow channel communication of the first plate at the position corresponding to the second hole, and the second blocking part blocks the flow channel communication of the second plate at the position corresponding to the first hole; the third core portion includes a fluid passage, one port of the fluid passage is the first orifice, the other port of the fluid passage is the second orifice, the fluid passage has at least a first path extending in the first side-to-second side direction, a second path extending in the heat exchanger core stacking direction, and a third path extending in the second side-to-first side direction.

A heat exchange device comprises a liquid storage device and the heat exchanger according to the technical scheme, the heat exchanger comprises a first side plate and a second side plate, the heat exchanger core is located between the first side plate and the second side plate, the liquid storage device is located on the first side plate side or the second side plate side, and the liquid storage device is communicated with an internal flow channel of the heat exchanger.

According to the technical scheme, the heat exchanger comprises a first core part, a second core part and a third core part which are formed by stacking plates, wherein the first core part is provided with a first hole channel, the second core part is provided with a second hole channel, the first hole channel and the second hole channel are not arranged in the stacking direction of the heat exchanger core body in an aligned mode, the third core part is provided with a first hole and a second hole, the second hole is communicated with the first hole channel, the first hole is communicated with the second hole channel, the first plate of the third core part is provided with a first blocking part, the second plate is provided with a second blocking part, the first blocking part is located at the position corresponding to the second hole channel, the second blocking part is located at the position corresponding to the first hole channel, the first blocking part blocks the flow channel of the first plate at the position corresponding to the second hole channel, the second blocking part blocks the flow channel of the second plate at the position corresponding to the first hole channel from being communicated, and the fluid channel of the third core, The second path and the third path, so, fluid can carry out the heat exchange at first core portion, second core portion, third core portion, and this heat exchanger can realize that fluid is from first pore to second pore, and fluid all can realize the heat exchange in the heat exchanger core, and heat exchange efficiency is better, can realize having the slab of unilateral stream and diagonal flow form simultaneously in a heat exchanger moreover, overall structure is compact.

Drawings

FIG. 1 is a general schematic of one embodiment of the heat exchanger of the present invention.

FIG. 2 is a general schematic of another embodiment of the heat exchanger of the present invention.

Fig. 3 is a cross-sectional view of the heat exchanger of fig. 1.

Fig. 4 is a partial enlarged view at I of a cross-sectional view of the heat exchanger in fig. 3.

Fig. 5 is an enlarged view of a portion of the heat exchanger of fig. 3 at section ii.

Fig. 6 is a schematic view of the structure of the third plate of fig. 1.

Fig. 7 is a schematic view of the structure of the first plate of fig. 1.

Fig. 8 is a schematic view of the structure of the second plate of fig. 1.

Fig. 9 is a schematic view of the structure of the fourth plate in fig. 1.

FIG. 10 is a schematic view of a ring of the present invention.

FIG. 11 is an embodiment of the contact welding of the present invention.

FIG. 12 is another embodiment of the contact welding of the present invention.

FIG. 13 is another embodiment of the contact welding of the present invention.

FIG. 14 is another embodiment of the contact welding of the present invention.

FIG. 15 is another embodiment of the contact welding of the present invention.

FIG. 16 is an embodiment of the present invention without contact.

FIG. 17 is another embodiment of the present invention without contact.

FIG. 18 is another embodiment of the present invention without contact.

FIG. 19 is another embodiment of the present invention without contact.

FIG. 20 is another embodiment of the present invention without contact.

Fig. 21 is a schematic view of one flow situation of each heat exchange medium in one situation of the heat exchanger shown in fig. 1.

FIG. 22 is a schematic view showing one flow condition of each heat exchange medium in one embodiment of the heat exchange apparatus of the present invention.

FIG. 23 is a schematic diagram of a single side flow heat exchanger.

Fig. 24 is a schematic view of a diagonal flow heat exchanger.

Fig. 25 is a schematic structural view of another embodiment of the heat exchanger of the present invention.

Fig. 26 is a schematic view of the structure of the third plate of fig. 25.

Fig. 27 is a schematic view of the structure of the first plate of fig. 25.

Fig. 28 is a schematic view of the structure of the second plate of fig. 25.

Fig. 29 is a schematic view of the structure of the fourth plate of fig. 25.

FIG. 30 is a schematic structural view of yet another embodiment of a heat exchanger according to the present invention.

Fig. 31 is a schematic view of the structure of the third plate of fig. 30.

Fig. 32 is a schematic view of the structure of the first plate of fig. 30.

Fig. 33 is a schematic view of the structure of the second plate of fig. 30.

Fig. 34 is a schematic view of the structure of the fourth plate of fig. 30.

FIG. 35 is a schematic structural view of yet another embodiment of a heat exchanger according to the present invention.

Fig. 36 is a schematic view of the structure of the third plate of fig. 35.

Fig. 37 is a schematic view of the structure of the first plate of fig. 35.

Fig. 38 is a schematic view of the structure of the second plate of fig. 35.

Fig. 39 is a schematic view of the fourth plate of fig. 35.

Detailed Description

Specific embodiments will now be described in detail with reference to the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. Those skilled in the art will appreciate that the specific components, devices, and features illustrated in the accompanying drawings and described herein are merely exemplary and should not be considered as limiting.

A foraminous member is defined as a member having a bore through which fluid can flow. The most common pipes, blocks with through holes, etc. are perforated pipe sections.

Figure 1 illustrates a heat exchanger 10 according to the present invention, one embodiment of the heat exchanger 10 being shown in figure 1 and comprising a heat exchanger core 11, a first side plate 12, a second side plate 13, a first foraminous member 14, a second foraminous member 15, a third foraminous member 16 and a fourth foraminous member 17. The two sides of the heat exchanger core 11 are respectively welded and fixed with the first side plate 12 and the second side plate 13. Another embodiment of the heat exchanger 10 is shown in fig. 2. the heat exchanger shown in fig. 2 further comprises a fifth foraminous member 18 and a sixth foraminous member 19.

The first tunnel component 14, the second tunnel component 15, the third tunnel component 16, the fourth tunnel component 17, the fifth tunnel component 18, and the sixth tunnel component 19 are all components with through holes, and may be all pipes, all blocks with through holes, part of pipes, part of blocks with through holes, or other forms of tunnel components.

Fig. 3 shows a cross-sectional view of the heat exchanger core 11 of the heat exchanger 10 shown in fig. 1, wherein the heat exchanger core 11 comprises at least a first core section 30, a third core section 40, and a second core section 20. Wherein the first core section 30 may be in a single-side flow form and the second core section 40 may be in a diagonal flow form. The first core section 30, the second core section 20, and the third core section 40 are stacked, the first core section 30, the second core section 20, and the third core section 40 are formed by stacking plates, and the third core section 40 is located between the first core section 30 and the second core section 20.

Referring to fig. 21, in order to illustrate the position of the hole channel more clearly, the position indicated by the arrow on the figure is the position of the hole channel, and of course, the hole channel is formed correspondingly to the upper and lower laminated plate holes inside the heat exchanger, and the illustration is only taken as a rough illustration. The first core portion 30 has a first hole passage 301, the second core portion 20 has a second hole passage 201, the heat exchanger core has a first side portion 110a and a second side portion 110b, the first side portion 110a is disposed opposite to the second side portion 110b, the first hole passage 301 and the second hole passage 201 are disposed adjacent to the first side portion 110a, the first hole passage 301 and the second hole passage 201 are disposed out of alignment in the lamination direction H of the heat exchanger core 11, the third core portion 40 has a first porthole 401 and a second porthole 402, the first porthole 401 and the second porthole 402 are disposed adjacent to the first side portion 110a, the first porthole 401 and the second porthole 402 are disposed out of alignment in the lamination direction H of the heat exchanger core 11, the second porthole 402 communicates with the first hole passage 301, the first porthole 401 communicates with the second hole passage 201, the third core portion 40 has at least a first plate 112 and a second plate 113, the first plate 112 has a first blocking portion 112a, the second plate 113 has a second blocking portion 113a, the first blocking portion 112a is located at a position corresponding to the second port 402, the second blocking portion 113a is located at a position corresponding to the first port 401, and in the heat exchanger stacking direction H, the first blocking portion 112a blocks the flow channel communication of the first plate 112 at a position corresponding to the second port 402, and the second blocking portion 113a blocks the flow channel communication of the second plate 113 at a position corresponding to the first port 401; the third core portion 40 includes a fluid passage 403, one port of the fluid passage 403 is a first orifice 401, the other port of the fluid passage 403 is a second orifice 402, the fluid passage 401 has at least a first path 404, a second path 405, and a third path 406, the first path 404 extends in the first side portion 110a to the second side portion 110b direction, the second path 405 extends in the heat exchanger core lamination direction H, and the third path 406 extends in the second side portion 110b to the first side portion 110a direction. Herein, the first path, the second path, and the third path are similar to the arrow lines illustrated in the drawings, and are flow paths of the fluid inside the heat exchanger.

Herein, for convenience of description, the heat exchanger core is defined to have a first side and a second side, but this does not limit the heat exchanger core to have a square-like structure, and in some cases, the heat exchanger core may also have a round-like structure, so that the first side and the second side of the heat exchanger core can be defined by virtually delimiting the square-like structure according to the position of the hole in the heat exchanger core, and thus by the position of the hole, demarcating the position of the first side and the second side by a line connecting the positions of the hole.

The fluid passage of the third core portion 40 has at least a first path 404, a second path 405 and a third path 406, so that the fluid can flow through the first hole channel 301, the second hole 402, the first path 404, the second path 405, the third path 406 and the second hole channel 201, the fluid penetrates through the first core portion 30, the second core portion 20 and the third core portion 40, the fluid can exchange heat in the first core portion 30, the second core portion 20 and the third core portion 40, the heat exchanger can realize the fluid from the first hole channel 301 to the second hole channel 201, the fluid can realize heat exchange in the heat exchanger core, the heat exchange efficiency is good, and the heat exchanger can realize the plate with uniflow and diagonal flow in one heat exchanger, and the whole structure is compact.

More specifically, the third core portion 40 includes a first plate 112, a second plate 113, a third plate 111, a fourth plate 114, a fifth plate 115, and a sixth plate 116, the fourth plate 114 and the fifth plate 115 are laminated on the second plate 113 side, and the third plate 111 and the sixth plate 116 are laminated on the first plate 112 side; the first path 404 is located between the fourth plate 114 and the fifth plate 115, or the first path 404 is located between the fourth plate 114 and the second plate 113; the first path 404 may be an internal flow channel of the first core section, and the first path may be in the form of a single-sided flow; the second path 405 is adjacent the second side 110 b; the third path 406 is located between the first plate 112 and the second plate 113, or the third path 406 is located between the first plate 112 and the third plate 111, or the third path 406 is located between the third plate 111 and the sixth plate 116; the third path 406 may be an internal flow passage of the second core section, and the third path may be in a diagonal flow form.

The third core part converts the single-side flow form of the first core part into the diagonal flow form of the second core part, so that the fluid interface of the first core part and the fluid interface of the second core part can be positioned on the same side of the heat exchanger, and the requirement that the heat exchanger interfaces are positioned on the same side can be met.

The fifth plate, the third plate 111, the first plate 112, the second plate 113, the fourth plate 114 and the sixth plate are adjacent in sequence. The distance between the first edge plate 12 and the third plate 111 is smaller than the distance between the first edge plate 12 and the fourth plate 114. The fifth plate and the fourth plate 114 are arranged in a matching manner to form a flow channel of the plate heat exchanger, the structure of the fifth plate is similar to that of the fourth plate 114, and the detailed structure of the fifth plate is not described herein again in detail. The sixth plate and the third plate are arranged in a matching manner to form a flow channel of the plate heat exchanger, the structure of the sixth plate is similar to that of the third plate 111, and the detailed structure of the sixth plate is not described herein again in detail.

In order to more clearly show the structure of the specific case where the third plate 111, the first plate 112, the second plate 113 and the fourth plate 114 are laminated together, fig. 4 and 5 illustrate a partial enlarged view of fig. 3.

As shown in fig. 6 to 9, the third plate 111, the first plate 112, the second plate 113, and the fourth plate 114 are all of an approximately rectangular structure, and the third plate 111, the first plate 112, the second plate 113, and the fourth plate all include a plate surface and a flange.

The direction of the third plate 111 toward the first plate 112 is defined as a convex direction, and the direction opposite to the convex direction is defined as a concave direction. For example, if the first plate 112 is located right above the third plate 111, the direction of the third plate 111 toward the first plate 112 is upward, in this case, the upward direction is a convex direction, and the downward direction is a concave direction.

The flanging can be turned towards the convex direction and can also be turned towards the concave direction. When adjacent plates are overlapped together, a part of the flanging between the plates and the adjacent plates are mutually and tightly abutted. The surface of the plate can be a plane, can also be a surface with wave shapes, convex points and concave points, and can also be a surface with other forms.

The third plate 111 includes a first corner 1111, a second corner 1112, a third corner 1113, and a fourth corner 1114; the first plate 112 includes a first corner 1121, a second corner 1122, a third corner 1123, a fourth corner 1124; the second plate 113 includes a first corner 1131, a second corner 1132, a third corner 1133, and a fourth corner 1134; the fourth plate 114 includes a first corner portion 1141, a second corner portion 1142, a third corner portion 1143, and a fourth corner portion 1144.

Fig. 10 illustrates a graph: and (4) a ring. The ring includes an outer ring and an inner ring that divide the space into X, Y, Z three regions. The X area is an outer area of the outer ring, and is called the outer part of the outer ring for short; the Y area is a ring area; the Z area is an inner area of the inner ring, and is called the inner part of the inner ring for short. It should be noted that the inner and outer rings of the ring may be other than circular, or may be other closed shapes.

As shown in fig. 6, the first corner 1111 of the third plate 111 includes a ring 11111, the second corner 1112 of the third plate 111 includes a ring 11121, the third corner 1113 of the third plate 111 includes a ring 11131, and the fourth corner 1114 of the third plate 111 includes a ring 11141. An orifice is formed in the inner ring of the ring 11111 at the first corner of the third plate 111; the third corner 1113 of the third plate 111 has an opening in the inner periphery of the ring 11131.

As shown in fig. 7, the first corner 1121 of the first plate 112 includes a ring 11211, the second corner 1122 of the first plate 112 includes a ring 11221, the third corner 1123 of the first plate 112 includes a ring 11231, and the fourth corner 1124 of the first plate 112 includes a ring 11241. It should be noted that in fig. 7, the ring 11231 of the third corner of the first plate 112 is flat with the plate surface, so that in fig. 7 the ring 11231 of the third corner of the first plate 112 is indicated by a broken line, as follows.

An opening is formed in the inner ring of the ring 11211 at the first corner of the first plate 112; the third corner of the first plate 112 is not apertured inside the inner ring of the ring 11231. The inner ring of the ring 11121 at the second corner of the third plate 111 is not provided with an orifice and/or the inner ring of the ring 11221 at the second corner of the first plate 112 is not provided with an orifice; the ring 11111 at the first corner of the third plate 111 is not in contact with the ring 11211 at the first corner of the first plate 112; the ring 11121 at the second corner of the third plate 111 is welded in contact with the ring 11221 at the second corner of the first plate 112; the ring 11131 of the third corner of the third plate 111 is not in contact with the ring 11231 of the third corner of the first plate 112; the ring 11141 at the fourth corner of the third plate 111 is welded in contact with the ring 11441 at the fourth corner of the first plate 112. At this time, the first blocking part is positioned at the third corner of the first plate.

As shown in fig. 8, the first corner 1131 of the second plate 113 includes a ring 11311, the second corner 1132 of the second plate 113 includes a ring 11321, the third corner 1133 of the second plate 113 includes a ring 11331, and the fourth corner 1134 of the second plate 113 includes a ring 11341. The inner ring of the ring 11311 at the first corner of the second plate 113 is provided with a hole; the inner ring of the ring 11331 of the third corner of the second plate 113 is provided with a hole; the inner ring of the ring 11341 at the fourth corner of the second plate 113 is apertured. The second corner of the second plate 113 is not apertured inside the inner ring of the ring 11321. The ring 11211 of the first corner of the first plate 112 is welded in contact with the ring 11311 of the first corner of the second plate 113; the ring 11221 at the second corner of the first plate 112 and the ring 11321 at the second corner of the second plate 113 may not be in contact with each other, or may be in contact with each other and welded; the ring 11231 of the third corner of the first plate 112 is not in contact with the ring 11331 of the third corner of the second plate 113; the ring 11241 at the fourth corner of the first plate 112 is not in contact with the ring 11341 at the fourth corner of the second plate 113. The second blocking portion is located at a second corner of the second plate.

As shown in fig. 9, the first corner 1141 of the fourth plate 114 includes a ring 11411, the second corner 1142 of the fourth plate 114 includes a ring 11421, the third corner 1143 of the fourth plate 114 includes a ring 11431, and the fourth corner 1144 of the fourth plate 114 includes a ring 11441. The inner ring of the ring 11411 at the first corner of the fourth plate 114 is provided with an opening; the inner ring of the ring 11421 at the second corner of the fourth plate 114 is provided with an opening; the inner ring of the ring 11431 of the third corner of the fourth plate 114 is provided with an opening; the inner periphery of ring 11441 at the fourth corner of fourth plate 114 is apertured. The ring 11311 of the first corner of the second plate 113 is not in contact with the ring 11411 of the first corner of the fourth plate 114; the ring 11321 of the second corner of the second plate 113 is not in contact with the ring 11421 of the second corner of the fourth plate 114; the ring 11331 of the third corner of the second plate 113 is welded in contact with the ring 11431 of the third corner of the fourth plate 114; the ring 11331 at the fourth corner of the second plate 113 is welded in contact with the ring 11441 at the fourth corner of the fourth plate 114.

The ring-to-ring contact welding of adjacent plates in the heat exchanger core 11 is carried out in various embodiments as follows. The ring contact welding of the fourth corner 1134 of the second plate 113 and the fourth corner 1144 of the fourth plate 114 will be described as an example.

(first embodiment of contact welding)

As shown in fig. 11, the fourth corner 1134 of the second plate 113 includes a boss, and the ring 11341 is located at the boss of the fourth corner 1134 of the second plate 113; the fourth corner 1144 of the fourth plate 114 includes a recessed land, the ring 11441 being located at the recessed land of the fourth corner 1144 of the fourth plate 114; the ring 11341 at the fourth corner of the second plate 113 is welded in contact with the ring 11441 at the fourth corner of the fourth plate 114.

(second embodiment of contact welding)

As shown in fig. 12, the fourth corner 1134 of the second plate 113 includes a boss, and the ring 11341 is located at the boss of the fourth corner 1134 of the second plate 113; the ring 11441 at the fourth corner 1144 of the fourth plate 114 is flat with the plate; the ring 11341 at the fourth corner of the second plate 113 is welded in contact with the ring 11441 at the fourth corner of the fourth plate 114.

(third embodiment of contact welding)

As shown in fig. 13, the ring 11341 of the fourth corner 1134 of the second plate 113 is flat with the plate surface; the fourth corner 1144 of the fourth plate 114 includes a recessed land, the ring 11441 being located at the recessed land of the fourth corner 1144 of the second plate 113; the ring 11341 at the fourth corner of the second plate 113 is welded in contact with the ring 11441 at the fourth corner of the fourth plate 114.

(contact welding mode IV)

As shown in fig. 14, the fourth corner 1134 of the second plate 113 includes a boss, and the ring 11341 is located at the boss of the fourth corner 1134 of the second plate 113; the fourth corner 1144 of the fourth plate 114 includes a short ledge, and the ring 11441 is located at the short ledge of the fourth corner 1144 of the fourth plate 114; the ring 11341 at the fourth corner of the second plate 113 is welded in contact with the ring 11441 at the fourth corner of the fourth plate 114. It should be noted that the short bosses are called short bosses because the height of the short bosses relative to the boss protrusions is small, and the name of the short bosses is used only for convenience of description, and the same is applied below.

(fifth embodiment of contact welding)

As shown in fig. 15, the fourth corner 1134 of the second plate 113 includes a short plateau, and the ring 11341 is located at the short plateau of the fourth corner 1134 of the second plate 113; the fourth corner 1144 of the fourth plate 114 includes a recessed land, the ring 11441 being located at the recessed land of the fourth corner 1144 of the fourth plate 114; the ring 11341 at the fourth corner of the second plate 113 is welded in contact with the ring 11441 at the fourth corner of the fourth plate 114. It should be noted that the short lands are referred to as short lands because of their small height relative to the depression of the lands, and the name short lands is used for descriptive convenience only, as follows.

The following embodiments are provided for the rings of adjacent plates in the heat exchanger core 11 without contacting the rings. The ring 11111 of the first corner 1111 of the third plate 111 does not contact the ring 11211 of the first corner 1121 of the first plate 112.

(non-contact embodiment one)

As shown in fig. 16, the first corner 1111 of the third plate 111 includes a recessed land, and the ring 11111 is located at the recessed land of the first corner 1111 of the third plate 111; the first corner 1121 of the first plate 112 includes a boss, and the ring 11211 is positioned on the boss of the first corner 1121 of the first plate 112; the ring 11111 at the first corner of the third plate 111 is not in contact with the ring 11211 at the first corner of the first plate 112.

(non-contact embodiment two)

As shown in fig. 17, the ring 11111 of the first corner 1111 of the third plate 111 is flat with the plate surface; the first corner 1121 of the first plate 112 includes a boss, and the ring 11211 is positioned on the boss of the first corner 1121 of the first plate 112; the ring 11111 at the first corner of the third plate 111 is not in contact with the ring 11211 at the first corner of the first plate 112.

(non-contact embodiment III)

As shown in fig. 18, the first corner 1111 of the third plate 111 includes a recessed land, and the ring 11111 is located at the recessed land of the first corner 1111 of the third plate 111; the ring 11211 of the first corner 1121 of the first plate 112 is flat with the plate surface; the ring 11111 at the first corner of the third plate 111 is not in contact with the ring 11211 at the first corner of the first plate 112.

(fourth embodiment without contact)

As shown in fig. 19, the first corner 1111 of the third plate 111 includes a boss (specifically, the boss here may be a short boss), and the ring 11111 is located at the boss of the first corner 1111 of the third plate 111; the first corner 1121 of the first plate 112 includes a boss, and the ring 11211 is positioned on the boss of the first corner 1121 of the first plate 112; the ring 11111 at the first corner of the third plate 111 is not in contact with the ring 11211 at the first corner of the first plate 112.

(non-contact embodiment five)

As shown in fig. 20, the first corner 1111 of the third plate 111 includes a recessed land (specifically, the recessed land here may be a short recessed land), and the ring 11111 is located at the recessed land of the first corner 1111 of the third plate 111; the first corner 1121 of the first plate 112 includes a short indentation, and the ring 11211 is located in the short indentation of the first corner 1121 of the first plate 112; the ring 11111 at the first corner of the third plate 111 is not in contact with the ring 11211 at the first corner of the first plate 112.

The specific structure of one embodiment of the third plate 111, the first plate 112, the second plate 113, and the fourth plate 114 will be described in detail below.

As shown in fig. 6, the first corner 1111 of the third plate 111 includes a recessed platform, and the ring 11111 of the first corner of the third plate 111 is located at the recessed platform of the first corner 1111 of the third plate 111; the second corner 1112 of the third plate 111 comprises a boss, and the ring 11121 of the second corner of the third plate 111 is located on the boss of the second corner 1112 of the third plate 111; the third corner 1113 of the third plate 111 comprises a recessed land, and the ring 11131 of the third corner of the third plate 111 is located in the recessed land of the third corner 1113 of the third plate 111; the fourth corner 1114 of the third plate 111 includes a boss, and the ring 11141 of the fourth corner of the third plate 111 is located at the boss of the fourth corner 1114 of the third plate 111.

An orifice is formed in the inner ring of the ring 11111 at the first corner of the third plate 111; the third corner 1113 of the third plate 111 has an opening in the inner periphery of the ring 11131.

As shown in fig. 7, the first corner 1121 of the first plate 112 includes a boss, and the ring 11211 of the first corner of the first plate 112 is located on the boss of the first corner 1121 of the first plate 112; the second corner 1122 of the first plate 112 comprises a recessed ledge, the ring 11221 of the second corner of the first plate 112 being located in the recessed ledge of the second corner 1122 of the first plate 112; the fourth corner 1124 of the first plate 112 includes an indentation, and the ring 11241 of the fourth corner of the first plate 112 is located in the indentation of the second corner 1124 of the first plate 112.

The third corner 1123 of the first panel 112 may have three cases: 1. the third corner 1123 of the first plate 112 may comprise a boss, the ring 11231 of the third corner of the first plate 112 being located at the boss of the third corner 1123 of the first plate 112; 2. the third corner 1123 of the first plate 112 may comprise a recessed land, the ring 11231 of the third corner of the first plate 112 being located in the recessed land of the third corner 1123 of the first plate 112; 3. the ring 11231 of the third corner of the first plate 112 is flush with the face of the first plate 112.

The inner ring of the ring 11211 at the first corner of the first plate 112 is apertured and the inner ring of the ring 11231 at the third corner of the first plate 112 is not apertured. The inner ring of the ring 11121 at the second corner of the third plate 111 is not apertured and/or the inner ring of the ring 11221 at the second corner of the first plate 112 is not apertured.

As shown in fig. 8, the first corner 1131 of the second plate 113 includes a recessed land, and the ring 11311 of the first corner of the second plate 113 is located in the recessed land of the first corner 1131 of the second plate 113; the third corner 1133 of the second plate 113 comprises a boss, the ring 11331 of the third corner of the second plate 113 being located at the boss of the third corner 1133 of the second plate 113; the fourth corner 1134 of the second plate 113 includes a boss, and the ring 11341 of the fourth corner of the second plate 113 is located at the boss of the fourth corner 1134 of the second plate 113. The second corner 1132 of the second plate 113 may have three conditions: 1. the second corner 1132 of the second plate 113 may include a boss, the ring 11321 of the second corner of the second plate 113 being located at the boss of the second corner 1132 of the second plate 113; 2. the second corner 1132 of the second plate 113 may include a recess, the ring 11321 of the second corner of the second plate 113 being located in the recess of the second corner 1132 of the second plate 113; 3. the ring 11321 at the second corner of the second plate 113 is flush with the plate surface of the second plate 113. The inner ring of the ring 11311 at the first corner of the second plate 113 is apertured, the inner ring of the ring 11331 at the third corner of the second plate 113 is apertured, the inner ring of the ring 11341 at the fourth corner of the second plate 113 is apertured, and the inner ring of the ring 11321 at the second corner of the second plate 113 is not apertured.

As shown in FIG. 9, the first corner 1141 of the fourth plate 114 includes a ledge, and the ring 11411 of the first corner of the fourth plate 114 is located on the ledge of the first corner 1141 of the fourth plate 114; the second corner 1142 of the fourth plate 114 includes a boss; the ring 11421 of the second corner of the fourth plate 114 is located at the boss of the second corner 1142 of the fourth plate 114; the third corner 1143 of the fourth plate 114 includes a recessed land, the ring 11431 of the third corner of the fourth plate 114 being located in the recessed land of the third corner 1143 of the fourth plate 114; the fourth corner 1144 of the fourth plate 114 includes a recessed land, and the ring 11441 of the fourth corner of the fourth plate 114 is located in the recessed land of the fourth corner 1144 of the fourth plate 114. The inner ring of the ring 11411 at the first corner of the fourth plate 114 is vented, the inner ring of the ring 11421 at the second corner of the fourth plate 114 is vented, the inner ring of the ring 11431 at the third corner of the fourth plate 114 is vented, and the inner ring of the ring 11441 at the fourth corner of the fourth plate 114 is vented. The inner ring of the ring 11141 at the fourth corner of the third plate 111 and the inner ring of the ring 11241 at the fourth corner of the first plate 112 may be provided with openings, either one of them or both of them.

The fluid flow channel between the third plate 111 and the first plate 112 is in the form of diagonal flow, the fluid flow channel between the first plate 112 and the second plate 113 is in the form of single-side flow, and the fluid flow channel between the second plate 113 and the fourth plate 114 is in the form of single-side flow.

The plate between the third plate 111 and the first edge plate 12 (which may include the third plate 111 and the first edge plate 12) constitutes a diagonal flow portion, and the plate between the fourth plate 114 and the second edge plate 13 (which may include the fourth plate 114 and the second edge plate 13) constitutes a single-edge flow portion.

When the fourth corner 1124 of the first plate 112 is ported and the fourth corner 1134 of the second plate 113 is also ported, the heat exchanger 10 is as shown in fig. 1, the first tunnel member 14 is disposed at a position where the first edge 12 corresponds to the second corner 1112 of the third plate 111; the second perforated channel member 15 is provided at a position where the first side plate 12 corresponds to the third corner 1113 of the third plate 111; the third perforated channel member 16 is disposed at a position where the second side plate 13 corresponds to the second corner 1142 of the fourth plate; the fourth tunnel element 17 is arranged in the second edge panel 13 in a position corresponding to the third corner 1143 of the fourth panel. When the heat exchanger 10 is in an operating state, the fluid flowing in the heat exchanger 10 includes a first heat exchange medium and a second heat exchange medium. The first heat exchange medium and the second heat exchange medium can be the same substance with different temperatures or different substances with different temperatures. In one case the heat exchange medium flows in such a way that the first heat exchange medium flows in from one of the first and

fourth tunnel parts

14, 17 and out from the other; the second heat exchange medium flows in from one of the second perforated channel member 15 and the third perforated channel member 16 and flows out from the other. And preferably, when the first heat exchange medium and the second heat exchange medium do not flow into or flow out of the porous parts on the first side plate 12 at the same time, the first heat exchange medium and the second heat exchange medium always flow in opposite directions in the heat exchanger 10, so that the heat exchange efficiency can be improved. Fig. 21 is a schematic flow diagram of the first heat exchange medium and the second heat exchange medium flowing in opposite directions all the time in the case of the heat exchanger 10 shown in fig. 1, wherein a flow path of one heat exchange medium is shown by a dotted line in the figure, and a flow path of the other heat exchange medium is shown by a solid line in the figure.

When the fourth corner 1124 of the first plate 112 is not ported at the same time as the fourth corner 1134 of the second plate 113, the heat exchanger 10 is configured such that, as shown in fig. 2, the fifth porthole member 18 is disposed at a position where the first edge plate 12 corresponds to the fourth corner 1114 of the third plate 111, and the sixth porthole member 19 is disposed at a position where the second edge plate 13 corresponds to the fourth corner 1144 of the fourth plate. When the heat exchanger 10 is in an operating state, the fluid flowing in the heat exchanger 10 includes the first heat exchange medium, the second heat exchange medium, and may even include the third heat exchange medium. In one case, the first heat exchange medium, the second heat exchange medium, and the third heat exchange medium may be the same substance or different substances having different temperatures. In one case the heat exchange medium flows in from one of the first and fifth

foraminous members

14, 18 and out from the other, the third heat exchange medium flows in from one of the sixth and fourth

foraminous members

19, 17 and out from the other, and the second heat exchange medium flows in from one of the second and third

foraminous members

15, 16 and out from the other. In another case, the first heat exchange medium flows in from one of the first and fifth

foraminous members

14, 18 and then flows in from one of the sixth and fourth

foraminous members

19, 17 and then flows out from the other, and the second heat exchange medium flows in from one of the second and third

foraminous members

15, 16 and then flows out from the other. When the heat exchange medium participating in heat exchange flows reversely, the heat exchange coefficient can be higher.

It should be noted that "contact" in "contact welding" means that the welding is followed by joining together. For example, the ring 11341 at the fourth corner of the second plate 113 is welded in contact with the ring 11441 at the fourth corner of the fourth plate, and solder or a coating is placed between the ring 11341 at the fourth corner of the second plate 113 and the ring 11441 at the fourth corner of the fourth plate, and the welding is performed and then the plates are connected together, which is also referred to as contact welding.

It should be noted that the contact welding may be performed by welding adjacent plates together, or by furnace welding after the plates of the entire heat exchanger 10 are stacked together.

The first plate comprises a plate surface, at least part of the first blocking portion is formed on the plate surface of the first plate, the second plate comprises a plate surface, and at least part of the second blocking portion is formed on the plate surface of the second plate. The first blocking part and the second blocking part can be formed by a first plate and a second plate; the first blocking part can also be formed by the first plate and the third plate together, and the second blocking part can also be formed by the second plate and the fourth plate together; the first barrier part and the second barrier part can also be formed by partial structures of the first plate and the second plate and other parts of the heat exchanger. Thus, herein, at least part of the first barrier is located on the first panel, and at least part of the second barrier is located on the first panel and/or the second panel without restricting the first barrier and the first panel to one single piece, nor restricting the second barrier and the first panel and/or the second panel to one single piece.

Referring to fig. 25, as another embodiment, fig. 25 illustrates a schematic view of a heat exchanger 10'; the heat exchanger 10 'is similar in general structure to the heat exchanger 10 in that the heat exchanger 10' includes a first core portion, a second core portion, and a third core portion, wherein the third core portion includes at least a first plate 112 ', a second plate 113', a third plate 111 ', and a fourth plate 114'.

Referring to fig. 26, the inner ring of the ring 11111 at the first corner of the third plate is provided with an opening; the inner ring of the ring 11121 of the second corner 1112 of the third plate is provided with an orifice; the inner race of the ring 11141 at the fourth corner 1114 of the third plate is vented.

Referring to fig. 27, a first corner 1121 of a first blade 112' includes a ring 11211, a second corner 1122 of the first blade includes a ring 11221, a third corner 1123 of the first blade includes a ring 11231, and a fourth corner 1124 of the first blade includes a ring 11241. An opening is formed in the inner ring of the ring 11211 at the first corner of the first plate; the inner ring of ring 11221 at the second corner of the first plate is not apertured. The inner ring of the ring 11131 of the third corner of the third plate is not provided with an orifice and/or the inner ring of the ring 11231 of the third corner of the first plate is not provided with an orifice; the ring 11111 at the first corner of the third plate is in contact welding with the ring 11211 at the first corner of the first plate; the ring 11121 at the second corner of the third plate is not in contact with the ring 11221 at the second corner of the first plate; the ring 11131 of the third corner of the third plate is welded in contact with the ring 11231 of the third corner of the first plate; the ring 11141 at the fourth corner of the third plate is not in contact with the ring 11441 at the fourth corner of the first plate. Wherein, the first obstructing portion is positioned at the second corner position of the first plate.

Referring to fig. 28, a first corner 1131 of the second plate comprises a ring 11311, a second corner 1132 of the second plate comprises a ring 11321, a third corner 1133 of the second plate comprises a ring 11331, and a fourth corner 1134 of the second plate comprises a ring 11341. An orifice is formed in the inner ring of the ring 11311 at the first corner of the second plate; an orifice is formed in the inner ring of the ring 11321 at the second corner of the second plate; the third corner of the second plate is not apertured inside the inner ring of ring 11331. The inner ring of the ring 11241 at the fourth corner of the first plate is not perforated with a hole and/or the inner ring of the ring 11341 at the fourth corner of the second plate is not perforated with a hole; ring 11211 of the first corner of the first plate is not in contact with ring 11311 of the first corner of the second plate; ring 11221 of the second corner of the first plate is not in contact with ring 11321 of the second corner of the second plate; the ring 11231 of the third corner of the first plate and the ring 11331 of the third corner of the second plate may not be in contact with each other, or may be in contact with each other and welded; ring 11241 at the fourth corner of the first plate is contact welded with ring 11341 at the fourth corner of the second plate. Wherein the second blocking part is positioned at the third corner of the second plate.

Referring to fig. 29, the first corner 1141 of the fourth plate 114' includes a ring 11411, the second corner 1142 of the fourth plate includes a ring 11421, the third corner 1143 of the fourth plate includes a ring 11431, and the fourth corner 1144 of the fourth plate includes a ring 11441. An orifice is formed in the inner ring of the ring 11411 at the first corner of the fourth plate; an orifice is formed in the inner ring of the ring 11421 at the second corner of the fourth plate; an orifice is formed inside the inner ring of the ring 11431 of the third corner of the fourth plate; the inner ring of ring 11441 at the fourth corner of the fourth plate has an opening. Ring 11311 of the first corner of the second plate is contact welded with ring 11411 of the first corner of the fourth plate; ring 11321 of the second corner of the second plate is contact welded with ring 11421 of the second corner of the fourth plate; the ring 11331 of the third corner of the second plate is out of contact with the ring 11431 of the third corner of the fourth plate; ring 11331 at the fourth corner of the second plate is not in contact with ring 11441 at the fourth corner of the fourth plate.

As another embodiment, referring to fig. 30, fig. 30 illustrates a structural schematic diagram of a heat exchanger 10 ", the general structure of the heat exchanger 10" is similar to that of the heat exchanger 10, and the heat exchanger 10 "includes a first core portion, a second core portion, and a third core portion, wherein the third core portion includes at least a first plate 112", a second plate 113 ", a third plate 111", and a fourth plate 114 ".

Referring to fig. 31, the first corner 1111 of the third plate 111 "includes a ring 11111, the second corner 1112 of the third plate 111" includes a ring 11121, the third corner 1113 of the third plate 111 "includes a ring 11131, and the fourth corner 1114 of the third plate 111'" includes a ring 11141. An opening is formed in the inner ring of the ring 11111 at the first corner of the third plate 111'; the inner ring of the ring 11121 at the second corner 1112 of the third plate 111' is provided with an opening; the inner ring of the ring 11131 of the third angle part 1113 of the third plate is provided with an orifice; the inner race of the ring 11141 at the fourth corner 1114 of the third plate is vented.

Referring to fig. 32, the first corner 1121 of the first blade 112 "includes a ring 11211, the second corner 1122 of the first blade 112" includes a ring 11221, the third corner 1123 of the first blade includes a ring 11231, and the fourth corner 1124 of the first blade includes a ring 11241. An opening is formed in the inner ring of the ring 11211 at the first corner of the first plate 112'; an opening is formed in the inner ring of the ring 11221 at the second corner of the first plate 112'; the inner ring of the ring 11231 of the third corner of the first plate 112 "is not provided with an opening; the inner ring of ring 11241 at the fourth corner of the first plate 112 "is apertured. The ring 11111 at the first corner of the third plate 111 "is not in contact with the ring 11211 at the first corner of the first plate 112"; the ring 11121 at the second corner of the third plate 111 "is welded in contact with the ring 11221 at the second corner of the first plate; the ring 11131 of the third corner of the third plate 111 "is not in contact with the ring 11231 of the third corner of the first plate 112"; the ring 11141 at the fourth corner of the third plate 111 "is welded in contact with the ring 11441 at the fourth corner of the first plate 112". Wherein, the first separation portion is located the third angle portion position of first slab.

Referring to fig. 33, the first corner 1131 of the second plate 113 "includes a ring 11311, the second corner 1132 of the second plate 113" includes a ring 11321, the third corner 1133 of the second plate 113 "includes a ring 11331, and the fourth corner 1134 of the second plate 113" includes a ring 11341. The inner ring of the ring 11311 at the first corner of the second plate 113 ″ is provided with a hole; the second corner of the second plate 113 "is not apertured inside the inner ring of the ring 11321. The ring 11211 of the first corner of the first plate 112 "is welded in contact with the ring 11311 of the first corner of the second plate 113"; the ring 11221 of the second corner of the first plate 112 "is not in contact with the ring 11321 of the second corner of the second plate 113"; the ring 11231 of the third corner of the first plate 112 "may be in contact with the ring 11331 of the third corner of the second plate 113", or may be in contact with and welded to each other; the ring 11241 at the fourth corner of the first plate 112 "is not in contact with the ring 11341 at the fourth corner of the second plate 113". Wherein the second blocking portion is located at a second corner of the second panel.

Referring to fig. 34, the first corner 1141 of the fourth plate 114 "includes a ring 11411, the second corner 1142 of the fourth plate 114" includes a ring 11421, the third corner 1143 of the fourth plate 114 "includes a ring 11431, and the fourth corner 1144 of the fourth plate 114" includes a ring 11441. The inner ring of the ring 11411 at the first corner of the fourth plate 114 "is bored; the inner ring of the ring 11421 at the second corner of the fourth plate 114 "is vented. The inner ring of the ring 11331 of the third corner of the second plate 113 "is not apertured and/or the inner ring of the ring 11421 of the third corner of the fourth plate 114" is not apertured. The ring 11311 of the first corner of the second plate 113 "is not in contact with the ring 11411 of the first corner of the fourth plate 114"; the ring 11321 of the second corner of the second plate 113 "is not in contact with the ring 11421 of the second corner of the fourth plate 114"; the ring 11331 of the third corner of the second plate 113 "is welded in contact with the ring 11431 of the third corner of the fourth plate 114"; the ring 11331 at the fourth corner of the second plate 113 "is welded in contact with the ring 11441 at the fourth corner of the fourth plate 114".

Referring to fig. 35, fig. 35 illustrates a schematic structural diagram of a heat exchanger 10 "', where the general structure of the heat exchanger 10"' is similar to that of the heat exchanger 10 "', and the heat exchanger 10"' includes a first core portion, a second core portion, and a third core portion, where the third core portion includes at least a first plate 112 "', a second plate 113"', a third plate 111 "', and a fourth plate 114"'.

As shown in fig. 36, the first corner 1111 of the third plate 111 "'includes a ring 11111, the second corner 1112 of the third plate 111"' includes a ring 11121, the third corner 1113 of the third plate 111 "'includes a ring 11131, and the fourth corner 1114 of the third plate 111"' includes a ring 11141. An opening is formed in the inner ring of the ring 11111 at the first corner of the third plate 111' ″; the inner ring of the ring 11121 at the second corner 1112 of the third plate 111' is provided with an opening; an opening is formed inside an inner ring of the ring 11131 of the third corner 1113 of the third plate 111'; the inner ring of the ring 11141 at the fourth corner 1114 of the third plate 111' "is vented.

As shown in fig. 37, the first corner 1121 of the first blade 112 "'includes a ring 11211, the second corner 1122 of the first blade 112"' includes a ring 11221, the third corner 1123 of the first blade 112 "'includes a ring 11231, and the fourth corner 1124 of the first blade 112"' includes a ring 11241. An opening is formed in the inner ring of the ring 11211 at the first corner of the first plate 112' ″; the inner ring of the ring 11221 at the second corner of the first plate 112' ″ is not provided with an opening; an opening is formed in the inner ring of the ring 11131 of the third corner of the third plate 111'; the ring 11111 at the first corner of the third plate 111 "'is welded in contact with the ring 11211 at the first corner of the first plate 112"'; the ring 11121 at the second corner of the third plate 111 "'is not in contact with the ring 11221 at the second corner of the first plate 112"'; the ring 11131 of the third corner of the third plate 111 "'is welded in contact with the ring 11231 of the third corner of the first plate 112"'; the ring 11141 in the fourth corner of the third plate 111 "'is not in contact with the ring 11441 in the fourth corner of the first plate 112"'. Wherein, the first obstructing portion is positioned at the second corner position of the first plate.

As shown in fig. 38, the first corner 1131 of the second plate 113 "'includes a ring 11311, the second corner 1132 of the second plate 113"' includes a ring 11321, the third corner 1133 of the second plate 113 "'includes a ring 11331, and the fourth corner 1134 of the second plate 113"' includes a ring 11341. The inner ring of the ring 11311 at the first corner of the second plate 113' ″ is provided with a hole; the third corner of the second plate 113 "' has no opening inside the inner ring of the ring 11331. The inner ring of the ring 11241 at the fourth corner of the first plate 112 "'is not apertured and/or the inner ring of the ring 11341 at the fourth corner of said second plate 113"' is not apertured; the ring 11211 of the first corner of the first plate 112 "'is not in contact with the ring 11311 of the first corner of the second plate 113"'; the ring 11221 at the second corner of the first plate 112 '"and the ring 11321 at the second corner of the second plate 113'" may or may not be contact welded; the ring 11231 of the third corner of the first plate 112 "'is not in contact with the ring 11331 of the third corner of the second plate 113"'; the ring 11241 at the fourth corner of the first plate 112 "'is contact welded with the ring 11341 at the fourth corner of the second plate 113"'. Wherein, the second separation portion is located the third angle portion position of second slab.

As shown in fig. 39, the first corner 1141 of the fourth sheet 114 "'includes a ring 11411, the second corner 1142 of the fourth sheet 114"' includes a ring 11421, the third corner 1143 of the fourth sheet 114 "'includes a ring 11431, and the fourth corner 1144 of the fourth sheet 114"' includes a ring 11441. The inner ring of the ring 11411 at the first corner of the fourth plate 114' ″ is bored; the inner ring of the ring 11431 of the third corner of the fourth plate 114' ″ is provided with an opening; the inner race of ring 11441 at the fourth corner of fourth plate 114' "is vented. The inner ring of the ring 11321 of the second corner of the second plate 113 "'is open and/or the inner ring of the ring 11421 of the second corner of the fourth plate 114"' is not open. The ring 11311 of the first corner of the second plate 113 "'is contact welded with the ring 11411 of the first corner of the fourth plate 114"'; the ring 11321 of the second corner of the second plate 113 "'is contact welded with the ring 11421 of the second corner of the fourth plate 114"'; the ring 11331 of the third corner of the second plate 113 "'is not in contact with the ring 11431 of the third corner of the fourth plate 114"'; the ring 11331 at the fourth corner of the second plate 113 "'is not in contact with the ring 11441 at the fourth corner of the fourth plate 114"'.

Through the third core part 40, the switching between the single-side flow and diagonal flow channel modes in the same heat exchanger can be realized. The heat exchanger 10, the heat exchanger 10 ', the heat exchanger 10 ″ and the heat exchanger 10' ″ comprise the third core part 40, and the third core part 40, the second core part 20 and the first core part 30 are still connected in a laminated manner through the plate sheets, so that the occupied space is smaller when the same heat exchange effect is achieved, namely, the space utilization rate is higher, and meanwhile, the structure is more compact, namely, when the same space is occupied, the heat exchangers 10, 10 'and 10' ″ have better heat exchange effect. In the process of miniaturization of machinery including a refrigeration system, such as an automobile and the like, large requirements are required for the space of refrigeration parts, and the special requirements are required for the inlet and outlet positions of a heat exchanger due to other reasons such as external pipelines and the like, at this time, because the third core part 40, the second core part 20 and the first core part 30 of the

heat exchangers

10, 10 ', 10 ", 10'" are all arranged in a laminated manner through the plates, the leakage risk generated by the independent connection of a plurality of external pipelines and the first core part or the second core part is reduced to a certain extent.

It should be noted that fins and other heat exchange enhancing components may be disposed between the plates of the heat exchanger core 11 to enhance the heat exchange performance of the

heat exchangers

10, 10 ', 10 "'.

Referring to fig. 22, fig. 22 illustrates a heat exchange device 50, the heat exchange device 50 comprising the heat exchanger 10 shown in fig. 2, a reservoir 51, the reservoir 51 being connected to the fifth foraminous member 18 and the sixth foraminous member 19 by piping. The accumulator is located at a position on one side of the heat exchanger 10, for example, as shown in fig. 22, the accumulator 51 is located on the second side plate 13 side, the heat exchanger 10 has a longitudinal direction L, and the accumulator 51 is placed in the longitudinal direction L. Heat exchange device 50 has integrateed heat exchanger 10 and reservoir 51, and heat exchanger 10 can act as condenser and subcooler among the refrigerating system, so integrated setting, with the reservoir install between condenser and subcooler, have the effect of the convenient maintenance when the reservoir trouble, the reservoir is located one side position of heat exchanger simultaneously, the structure is more compact and small and exquisite.

Fig. 22 is a schematic flow diagram of heat exchange media in a case of the heat exchange device 50, in which the first heat exchange medium and the second heat exchange medium always flow in opposite directions, a flow path of one heat exchange medium is shown by a dotted line in the figure, and a flow path of the other heat exchange medium is shown by a solid line in the figure. The first heat exchange medium flows into the heat exchanger 10 from the first foraminous member 14, flows out of the heat exchanger 10 from the fifth foraminous member 18 and into the reservoir 51, flows into the heat exchanger 10 from the sixth foraminous member 19, flows out of the heat exchanger 10 from the fourth foraminous member 17, and the second heat exchange medium flows in from one of the second foraminous member 15 and the third foraminous member 16 and flows out from the other; alternatively, in another case, the heat exchange medium may flow in such a manner that the first heat exchange medium flows into the heat exchanger 10 from the fourth foraminous member 17, flows out of the heat exchanger 10 from the sixth foraminous member 19 into the reservoir 51, flows into the heat exchanger 10 from the fifth foraminous member 18, flows out of the heat exchanger 10 from the first foraminous member 14, and the second heat exchange medium flows in from one of the second foraminous member 15 and the third foraminous member 16 and flows out from the other. When the heat exchange medium participating in heat exchange flows reversely, the heat exchange coefficient can be higher.

The heat exchange device 50 described above is merely an example and the heat exchanger 10 ', the heat exchanger 10 "' may all be integrated with a reservoir 51 similar to that shown in fig. 22.

It should be noted that: the expressions in the above embodiments regarding "first", "second", "third", "fourth", "fifth", "sixth", etc. are merely for naming purposes and do not include any sequential limitations. Although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the present invention may be modified and equivalents may be substituted for those skilled in the art, and all technical solutions and modifications that do not depart from the spirit and scope of the present invention should be covered by the claims of the present invention.

Claims

1. A heat exchanger comprising a heat exchanger core, characterized in that the heat exchanger core comprises at least a first core portion, a second core portion and a third core portion, the first core portion, the second core portion and the third core portion are arranged in a stacked manner, the first core portion, the second core portion and the third core portion are formed by stacking sheets, the third core portion is located between the first core portion and the second core portion, the first core portion is in a single-side flow manner, the second core portion is in a diagonal flow manner, the first core portion has a first porthole, the second core portion has a second porthole, the heat exchanger core has a first side portion and a second side portion, the first side portion is arranged opposite to the second side portion, the first porthole and the second porthole are arranged adjacent to the first side portion, and the first porthole and the second porthole are arranged out of alignment in the stacking direction of the heat exchanger core, the third core part is provided with a first hole and a second hole, the first hole and the second hole are arranged in a non-aligned mode in the lamination direction of the heat exchanger core, the second hole is communicated with the first hole channel, the first hole is communicated with the second hole channel, the third core part is provided with at least a first blocking part and a second blocking part, the first blocking part is located at a position corresponding to the second hole channel, the second blocking part is located at a position corresponding to the first hole channel, the third core part is provided with at least a first plate and a second plate, at least part of the first blocking part is located on the first plate, and at least part of the second blocking part is located on the first plate and/or the second plate;

2. The heat exchanger of claim 1, wherein: the third core part comprises a third plate, a fourth plate, a fifth plate and a sixth plate, the fourth plate and the fifth plate are stacked on one side of the second plate, and the third plate and the sixth plate are stacked on one side of the first plate; the first path is located between the fourth plate and the fifth plate, or the first path is located between the fourth plate and the second plate; the second path is adjacent the second side; the third path is located between the first plate and the second plate, or the third path is located between the first plate and the third plate, or the third path is located between the third plate and the sixth plate.

3. The heat exchanger of claim 1 or 2, wherein the fluid passage of the third core section comprises at least the first porthole, the second port, the first path, the second path, the third path, and the second porthole, wherein the first path is in a unilaterally flowing form, and wherein the third path is in a diagonally flowing form.

4. The heat exchanger of claim 1, wherein the first plate comprises a plate face formed with at least part of the first barrier, and the second plate comprises a plate face formed with at least part of the second barrier.

5. The heat exchanger of any of claims 1-4, wherein the first and second plates each comprise a first corner, a second corner, a third corner, and a fourth corner;

an orifice is formed in the inner ring of the ring at the first corner of the first plate; the inner ring of the third corner of the first plate is not provided with an orifice; the first blocking part is positioned at the third corner of the first plate;

the inner ring of the ring at the second corner of the second plate is not provided with an orifice and/or the inner ring of the ring at the second corner of the first plate is not provided with an orifice; the second blocking portion is located at a second corner of the second sheet.

6. The heat exchanger of any of claims 1-4, wherein the first, second, third, and fourth plates each comprise a first corner, a second corner, a third corner, and a fourth corner;

an orifice is formed in the inner ring of the ring at the first corner of the first plate; the inner ring of the ring at the second corner of the first plate is not provided with an orifice; an orifice is formed in the inner ring of the third corner of the first plate; an orifice is not formed in the inner ring of the ring at the fourth corner of the first plate, and the first blocking part is positioned at the second corner of the first plate;

an orifice is formed in the inner ring of the ring at the first corner of the second plate; an orifice is formed in the inner ring of the ring at the second corner of the second plate; and an orifice is not formed in the inner ring of the third angle part of the second plate, and the second blocking part is positioned at the third angle part of the second plate.

7. The heat exchanger of any of claims 1-4, wherein the first, second, third, and fourth plates each comprise a first corner, a second corner, a third corner, and a fourth corner;

an orifice is formed in the inner ring of the ring at the first corner of the first plate; an orifice is formed in the inner ring of the ring at the second corner of the first plate; the inner ring of the third corner of the first plate is not provided with an orifice; an orifice is formed in the inner ring of the ring at the fourth corner of the first plate; the first blocking part is positioned at the third corner of the first plate;

an orifice is formed in the inner ring of the ring at the first corner of the second plate; the inner ring of the ring at the second corner of the second plate is not provided with an orifice; the second blocking portion is located at a second corner of the second plate.

8. The heat exchanger of any of claims 1-4, wherein the first, second, third, and fourth plates each comprise a first corner, a second corner, a third corner, and a fourth corner;

an orifice is formed in the inner ring of the ring at the first corner of the first plate; the inner ring of the ring at the second corner of the first plate is not provided with an orifice; the first blocking part is positioned at a second corner position of the first plate;

an orifice is formed in the inner ring of the ring at the first corner of the second plate; the inner ring of the third corner of the second plate is not provided with an orifice; the second blocking part is positioned at the third corner of the second plate.

9. A heat exchange device comprising a heat exchanger according to any one of claims 1-8 and a reservoir, the heat exchanger comprising a first side plate, a second side plate, the heat exchanger core being located between the first side plate and the second side plate, the reservoir being located on either the first side plate or the second side plate, the reservoir being in communication with the heat exchanger internal flow passage.

10. The heat exchange device of claim 9, wherein:

the inner ring of the ring at the fourth corner of the first plate is not provided with an orifice and/or the inner ring of the ring at the fourth corner of the second plate is not provided with an orifice,

the distance between the first side plate and the first plate is smaller than the distance between the first side plate and the fourth plate; the heat exchanger comprises a first pore canal part, a second pore canal part, a third pore canal part, a fourth pore canal part, a fifth pore canal part and a sixth pore canal part; the first tunnel-carrying component is arranged at a position where the first side plate corresponds to the second corner of the first plate; the second channel part with holes is arranged at the position of the first side plate corresponding to the third corner of the first plate; the third perforated channel part is arranged at the position of the second side plate corresponding to the second corner of the fourth plate; the fourth foraminous component is arranged at the position where the second side plate corresponds to the third corner of the fourth plate; the fifth hole-carrying component is arranged at a position where the first side plate corresponds to a fourth corner of the first plate; the sixth perforated channel member is arranged at a position where the second side plate corresponds to a fourth corner of the fourth plate; the fifth foraminous member is connected to the reservoir,

when the heat exchanger is in an operating state, the fluid flowing in the heat exchanger comprises a first heat exchange medium and a second heat exchange medium, the first heat exchange medium flows in from the first foraminous component and flows out from the fifth foraminous component, the first heat exchange medium flows out from the fifth foraminous component and flows into the reservoir, the first heat exchange medium flows out from the reservoir and flows in from the sixth foraminous component and flows out from the fourth foraminous component, and the second heat exchange medium flows in from the third foraminous component and flows out from the second heat exchange tube;

alternatively, the first heat exchange medium may flow in from the fourth port member, flow out from the sixth port member, and flow into the receiver, the first heat exchange medium may flow in from the fifth port member, flow out from the first port member, flow out from the receiver, and the second heat exchange medium may flow in from the second port member, and flow out from the third port member.