Distribution structure of plate heat exchanger

Abstract

The utility model discloses a distribution structure of a plate heat exchanger, which comprises a heat exchange component, the heat exchange component comprises a plurality of first heat exchange plates and a plurality of second heat exchange plates, and the first heat exchange plates and the second heat exchange plates are alternately arranged to form the heat exchange component. The second side of the first heat exchange plate is matched with the first side of the adjacent second heat exchange plate to form a first heat exchange channel, and the second side of the second heat exchange plate is matched with the second side of the adjacent first heat exchange plate to form a second heat exchange channel; the fluid distribution cavity is communicated with the second heat exchange channel through the distribution holes, the first fluid outlet cavity is communicated with the second heat exchange channel, the fluid inlet cavity is communicated with the first heat exchange channel, and the second fluid outlet cavity is communicated with the first heat exchange channel. The heat exchange effect of the plate heat exchanger can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a distribution structure of a plate heat exchanger. Background Art

[0002] A plate heat exchanger is a high-efficiency heat exchanger made up of a series of stacked, corrugated metal sheets. Thin rectangular channels are formed between the various plates, through which heat is exchanged. Plate heat exchangers are ideal for liquid-liquid and liquid-vapor heat exchange, featuring high heat exchange efficiency, minimal heat loss, a compact and lightweight structure, a small footprint, wide application, and a long service life. The working principle of a plate heat exchanger is to utilize the corrugated structure of the plates to flow two fluids of different temperatures through the plates, transferring heat from the higher-temperature fluid to the lower-temperature fluid to achieve heating or cooling. However, when the fluid enters the heat exchange channel between the plates, the flow rate of the fluid flowing through the heat exchange channel near the inlet end is greater than that of the heat exchange channel far from the inlet end. As a result, the heat exchange channel at the end cannot effectively achieve its heating or cooling purpose, thus affecting the ultimate heat exchange effect. Utility Model Content

[0003] The utility model provides a distribution structure of a plate heat exchanger, which can improve the heat exchange effect of the plate heat exchanger.

[0004] In order to solve the above technical problems, the present invention provides a distribution structure of a plate heat exchanger, which is characterized by comprising:

[0005] A heat exchange assembly, the heat exchange assembly comprising a plurality of first heat exchange plates and a plurality of second heat exchange plates, the plurality of first heat exchange plates and the plurality of second heat exchange plates being alternately arranged to form the heat exchange assembly, the second side of the first heat exchange plate cooperating with the first side of the adjacent second heat exchange plate to form a first heat exchange channel, and the second side of the second heat exchange plate cooperating with the second side of the adjacent first heat exchange plate to form a second heat exchange channel;

[0006] The heat exchange component is provided with a plurality of fluid distribution chambers, a plurality of first fluid outlet chambers, a plurality of fluid inlet chambers and a plurality of second fluid outlet chambers, and the heat exchange component is also provided with a plurality of distribution holes;

[0007] The fluid distribution cavity is communicated with the second heat exchange channel through the distribution hole, the first fluid outlet cavity is communicated with the second heat exchange channel, the fluid inlet cavity is communicated with the first heat exchange channel, and the second fluid outlet cavity is communicated with the first heat exchange channel.

[0008] As a preferred embodiment of the above technical solution, the first end of the first heat exchange plate is provided with a first fluid inlet area and a second fluid inlet area, the second end of the first heat exchange plate is provided with a first fluid outlet area and a second fluid outlet area, the first end of the second heat exchange plate is provided with a third fluid inlet area cooperating with the first fluid inlet area and a fourth fluid inlet area cooperating with the second fluid inlet area, the second end of the second heat exchange plate is provided with a third fluid outlet area cooperating with the first fluid outlet area and a fourth fluid outlet area cooperating with the second fluid outlet area, the first fluid inlet area and the third fluid inlet area cooperate to form the fluid distribution cavity, the second fluid inlet area and the fourth fluid inlet area cooperate to form the fluid inlet cavity, the first fluid outlet area and the third fluid outlet area cooperate to form the first fluid outlet cavity, and the second fluid outlet area and the fourth fluid outlet area cooperate to form the second fluid outlet cavity.

[0009] As a preferred embodiment of the above technical solution, the distribution hole is provided on the third fluid inlet area of the second heat exchange plate, and the distribution hole is communicated with the fluid distribution cavity; or the distribution hole is provided on the first fluid inlet area of the first heat exchange plate, and the distribution hole is communicated with the fluid distribution cavity.

[0010] As a preferred embodiment of the above technical solution, the heat exchange component is further provided with a first inlet, a first outlet, a second inlet and a second outlet. The position of the first inlet corresponds to the position of the first fluid inlet area and the third fluid inlet area, the first inlet is connected to the fluid distribution chamber, the position of the first outlet corresponds to the position of the first fluid outlet area and the third fluid outlet area, the first outlet is connected to the first fluid outlet chamber, the position of the second inlet corresponds to the position of the second fluid inlet area and the fourth fluid inlet area, the second inlet is connected to the fluid inlet chamber, the position of the second outlet corresponds to the position of the second fluid outlet area and the fourth fluid outlet area, and the second outlet is connected to the second fluid outlet chamber.

[0011] As a preferred embodiment of the above technical solution, the outer edge of the first fluid inlet area extends toward the second side of the first heat exchange plate to form a first sealing portion, and the outer edge of the third fluid inlet area extends toward the first side of the second heat exchange plate to form a third sealing portion. The first sealing portion of the first heat exchange plate and the third sealing portion of the adjacent second heat exchange plate are sealed and cooperated to form the fluid distribution chamber.

[0012] As a preferred embodiment of the above technical solution, the middle part of the first fluid inlet area extends toward the first side of the first heat exchange plate to form a second sealing portion, the middle part of the third fluid inlet area extends toward the second side of the second heat exchange plate to form a fourth sealing portion, and the second sealing portion of the first heat exchange plate is sealed and connected to the fourth sealing portion of the adjacent second heat exchange plate.

[0013] As a preferred embodiment of the above technical solution, a distribution platform is provided between the third sealing portion and the fourth sealing portion, and the distribution hole is provided on the distribution platform.

[0014] As a preferred embodiment of the above technical solution, the outer edge of the distribution hole extends toward the second heat exchange channel to form a guide portion.

[0015] As a preferred embodiment of the above technical solution, the outer edge of the second sealing portion is provided with a distribution slope, and the distribution hole is provided on the distribution slope.

[0016] The utility model provides a distribution structure of a plate heat exchanger, characterized in that it comprises: a heat exchange component, a plurality of first heat exchange plates and a plurality of second heat exchange plates are alternately stacked to form the heat exchange component, and the first heat exchange channels and the second heat exchange channels are alternately formed in the heat exchange component; when in use, two fluids of different temperatures are respectively passed into the first heat exchange channel and the second heat exchange channel, so that heat is transferred from the fluid with a higher temperature to the fluid with a lower temperature to achieve the purpose of heating or cooling, for example, hot water is passed into the first heat exchange channel through the fluid inlet cavity and finally flows out from the second fluid outlet cavity, and refrigerant is passed into the second heat exchange channel through the fluid distribution cavity and finally flows out from the first fluid outlet cavity The fluid flows out of the body outlet cavity, thereby having the effect of cooling the hot water; the fluid distribution chamber is connected to the second heat exchange channel through the distribution hole, and the speed of the fluid flowing into the second heat exchange channel is affected by the distribution hole. For example, when the refrigerant flows into the first fluid distribution chamber, it cannot fully enter the second heat exchange channel connected to the first fluid distribution chamber at the first time, so that the refrigerant will enter the second fluid distribution chamber. Similarly, a part of the refrigerant enters the second heat exchange channel connected to the second fluid distribution chamber, and another part enters the third fluid distribution chamber, and so on, so that the second heat exchange channel at the end can also flow in enough refrigerant, so that the refrigerant entering all the second heat exchange channels is more uniform. By setting the distribution hole, the incoming fluid can be distributed more evenly in different second heat exchange channels, thereby effectively improving the heat exchange effect of the plate heat exchanger.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a distribution structure of a plate heat exchanger in an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of a distribution structure of a plate heat exchanger in an embodiment of the present utility model;

[0020] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0021] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of a first heat exchange plate of a distribution structure of a plate heat exchanger in an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of a second heat exchange plate of a distribution structure of a plate heat exchanger in an embodiment of the present utility model;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of a first heat exchange plate provided with distribution holes in a distribution structure of a plate heat exchanger in an embodiment of the present utility model;

[0025] In the figure: 1. heat exchange component; 2. first heat exchange plate; 3. second heat exchange plate; 101. first heat exchange channel; 102. second heat exchange channel; 103. fluid distribution chamber; 104. first fluid outlet chamber; 105. fluid inlet chamber; 106. second fluid outlet chamber; 107. first inlet; 108. first outlet; 109. second inlet; 110. second outlet; 111. distribution hole; 201. first fluid inlet area; 202. second fluid inlet area; 203. first fluid outlet area; 204. second fluid outlet area; 205. first sealing part; 206. second sealing part; 207. distribution slope; 302. third fluid inlet area; 303. fourth fluid inlet area; 304. third fluid outlet area; 305. fourth fluid outlet area; 306. third sealing part; 307. fourth sealing part; 308. distribution platform; 309. guide part. DETAILED DESCRIPTION

[0026] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0027] See also Figures 1 to 7 The present invention provides a distribution structure for a plate heat exchanger, which is characterized by comprising:

[0028] A heat exchange assembly 1 includes a plurality of first heat exchange plates 2 and a plurality of second heat exchange plates 3, wherein the plurality of first heat exchange plates 2 and the plurality of second heat exchange plates 3 are alternately arranged to form the heat exchange assembly 1, wherein the second side of the first heat exchange plate 2 cooperates with the first side of the adjacent second heat exchange plate 3 to form a first heat exchange channel 101, and the second side of the second heat exchange plate 3 cooperates with the second side of the adjacent first heat exchange plate 2 to form a second heat exchange channel 102;

[0029] The present invention provides a distribution structure of a plate heat exchanger, characterized in that it comprises: a heat exchange component 1, a plurality of first heat exchange plates 2 and a plurality of second heat exchange plates 3 alternately stacked to form the heat exchange component 1, and the heat exchange component 1 forms the first heat exchange channel 101 and the second heat exchange channel 102 alternately arranged; when in use, two fluids of different temperatures are respectively introduced into the first heat exchange channel 101 and the second heat exchange channel 102, so that heat is transferred from the fluid with a higher temperature to the fluid with a lower temperature to achieve the purpose of heating or cooling, for example, hot water is introduced into the first heat exchange channel 101 through the fluid inlet cavity 105, and finally flows out from the second fluid outlet cavity 106, and refrigerant is introduced into the second heat exchange channel 102 through the fluid distribution cavity 103, and finally flows out from the first fluid outlet cavity 1 04 flows out, thereby having the effect of cooling the hot water; the fluid distribution chamber 103 is connected to the second heat exchange channel 102 through the distribution hole 111, and the speed of the fluid flowing into the second heat exchange channel 102 is affected by the distribution hole 111. For example, when the refrigerant flows into the first fluid distribution chamber 103, it cannot fully enter the second heat exchange channel 102 connected to the first fluid distribution chamber 103 at the first time, so that the refrigerant will enter the second fluid distribution chamber 103. Similarly, a part of the refrigerant enters the second heat exchange channel 102 connected to the second fluid distribution chamber 103, and another part enters the third fluid distribution chamber 103. And so on, the second heat exchange channel 102 at the end can also flow with enough refrigerant, so that the refrigerant entering all the second heat exchange channels 102 is more uniform. By setting the distribution hole 111, the incoming fluid can be distributed more evenly in different second heat exchange channels 102, thereby effectively improving the heat exchange effect of the plate heat exchanger.

[0030] The heat exchange component 1 is provided with a plurality of fluid distribution chambers 103, a plurality of first fluid outlet chambers 104, a plurality of fluid inlet chambers 105 and a plurality of second fluid outlet chambers 106. The heat exchange component 1 is also provided with a plurality of distribution holes 111.

[0031] The fluid distribution chamber 103 is connected to the second heat exchange channel 102 through the distribution hole 111, the first fluid outlet chamber 104 is connected to the second heat exchange channel 102, the fluid inlet chamber 105 is connected to the first heat exchange channel 101, and the second fluid outlet chamber 106 is connected to the first heat exchange channel 101.

[0032] In a further embodiment of the present invention, the first end of the first heat exchange plate 2 is provided with a first fluid inlet area 201 and a second fluid inlet area 202, the second end of the first heat exchange plate 2 is provided with a first fluid outlet area 203 and a second fluid outlet area 204, the first end of the second heat exchange plate 3 is provided with a third fluid inlet area 302 cooperating with the first fluid inlet area 201 and a fourth fluid inlet area 303 cooperating with the second fluid inlet area 202, the second end of the second heat exchange plate 3 is provided with a third fluid outlet area 304 cooperating with the first fluid outlet area 203. Area 304 and the fourth fluid outlet area 305 cooperating with the second fluid outlet area 204, the first fluid inlet area 201 and the third fluid inlet area 302 cooperate to form the fluid distribution chamber 103, the second fluid inlet area 202 and the fourth fluid inlet area 303 cooperate to form the fluid inlet chamber 105, the first fluid outlet area 203 and the third fluid outlet area 304 cooperate to form the first fluid outlet chamber 104, and the second fluid outlet area 204 and the fourth fluid outlet area 305 cooperate to form the second fluid outlet chamber 106.

[0033] In this embodiment, the first fluid inlet area 201 and the first fluid outlet area 203 are respectively arranged at the two ends of the first heat exchange plate 2, and the second fluid inlet area 202 and the second fluid outlet area 204 are respectively arranged at the two ends of the first heat exchange plate 2, the third fluid inlet area 302 and the third fluid outlet area 304 are respectively arranged at the two ends of the second heat exchange plate 3, and the fourth fluid inlet area 303 and the fourth fluid outlet area 305 are respectively arranged at the two ends of the second heat exchange plate 3, ensuring that the fluid distribution cavity 103 and the first fluid outlet cavity 104 are located at the two ends of the heat exchange component 1, and ensuring that the fluid inlet cavity 105 and the second fluid outlet cavity 106 are located at the two ends of the heat exchange component 1, so that the fluid flows through the entire first heat exchange plate 2 and the second heat exchange plate 3 as much as possible, thereby further improving the heat exchange effect.

[0034] In a further embodiment of the present invention, the distribution hole 111 is provided on the third fluid inlet area 302 of the second heat exchange plate 3, and the distribution hole 111 is communicated with the fluid distribution chamber 103; or the distribution hole 111 is provided on the first fluid inlet area 201 of the first heat exchange plate 2, and the distribution hole 111 is communicated with the fluid distribution chamber 103.

[0035] In this embodiment, the distribution hole 111 can be set on the second heat exchange plate 3, or can also be set on the first heat exchange plate 2, to ensure that the distribution hole 111 can be connected to the fluid distribution cavity 103, thereby ensuring that the incoming fluid can be distributed more evenly in different second heat exchange channels 102, further improving the heat exchange effect of the plate heat exchanger.

[0036] In a further embodiment of the present invention, the heat exchange component 1 is further provided with a first inlet 107, a first outlet 108, a second inlet 109 and a second outlet 110. The position of the first inlet 107 corresponds to the position of the first fluid inlet area 201 and the third fluid inlet area 302, the first inlet 107 is connected to the fluid distribution chamber 103, the position of the first outlet 108 corresponds to the position of the first fluid outlet area 203 and the third fluid outlet area 304, the first outlet 108 is connected to the first fluid outlet chamber 104, the position of the second inlet 109 corresponds to the position of the second fluid inlet area 202 and the fourth fluid inlet area 303, the second inlet 109 is connected to the fluid inlet chamber 105, the position of the second outlet 110 corresponds to the position of the second fluid outlet area 204 and the fourth fluid outlet area 305, and the second outlet 110 is connected to the second fluid outlet chamber 106.

[0037] In this embodiment, the first inlet 107 is connected to several of the fluid distribution chambers 103, the first outlet 108 is connected to several of the first fluid outlet chambers 104, the second inlet 109 is connected to several of the fluid inlet chambers 105, and the second outlet 110 is connected to several of the second fluid outlet chambers 106. The external first fluid inlet pipe is connected to the first inlet 107, the external first fluid outlet pipe is connected to the first outlet 108, the external second fluid inlet pipe is connected to the second inlet 109, and the external second fluid outlet pipe is connected to the second outlet 110. The external first fluid flows into the first inlet 107 and flows to different fluid distribution chambers 103 in turn, and enters the second heat exchange channel 102 through the distribution hole 111 set on the fluid distribution chamber 103. By setting the first inlet 107, the fluid is facilitated to flow to different fluid distribution chambers 103, thereby further making the incoming fluid more evenly distributed in different second heat exchange channels 102, further improving the heat exchange effect of the plate heat exchanger.

[0038] In a further embodiment of the present invention, the outer edge of the first fluid inlet area 201 extends toward the second side of the first heat exchange plate 2 to form a first sealing portion 205, and the outer edge of the third fluid inlet area 302 extends toward the first side of the second heat exchange plate 3 to form a third sealing portion 306. The first sealing portion 205 of the first heat exchange plate 2 and the third sealing portion 306 of the adjacent second heat exchange plate 3 are sealed and cooperated to form the fluid distribution chamber 103.

[0039] In this embodiment, the first sealing portion 205 and the third sealing portion 306 are sealed together to form the fluid distribution chamber 103, which can prevent the fluid from leaking from the fluid distribution chamber 103 and causing safety hazards. At the same time, the first sealing portion 205 and the third sealing portion 306 can be formed by a stamping process, and then the first sealing portion 205 and the third sealing portion 306 can be sealed and connected by welding or the like. The structure is simple and reliable, and is easy to produce and manufacture, which can reduce production costs.

[0040] In a further embodiment of the present invention, the middle portion of the first fluid inlet area 201 extends toward the first side of the first heat exchange plate 2 to form a second sealing portion 206, and the middle portion of the third fluid inlet area 302 extends toward the second side of the second heat exchange plate 3 to form a fourth sealing portion 307. The second sealing portion 206 of the first heat exchange plate 2 is sealed and connected to the fourth sealing portion 307 of the adjacent second heat exchange plate 3.

[0041] In this embodiment, a first inlet 107 is provided in the middle of the second sealing portion 206 and the fourth sealing portion 307. The second sealing portion 206 is sealedly connected to the outer edge of the fourth sealing portion 307, thereby preventing the second heat exchange channel 102 from directly communicating with the first inlet 107. This ensures that the fluid flows from the first inlet 107 through the fluid distribution chamber 103 and into the second heat exchange channel 102 through the distribution holes 111, thereby ensuring that the fluid is more evenly distributed among the different second heat exchange channels 102, further improving the heat exchange effect of the plate heat exchanger. At the same time, the second sealing portion 206 and the fourth sealing portion 307 can be formed using a stamping process, and then the second sealing portion 206 and the fourth sealing portion 307 are sealed and connected by welding or other methods. This simple and reliable structure is easy to manufacture and can reduce production costs.

[0042] In a further embodiment of the present invention, a distribution platform 308 is provided between the third sealing portion 306 and the fourth sealing portion 307 , and the distribution platform 308 is provided with the distribution hole 111 .

[0043] In this embodiment, when the distribution hole 111 is provided in the second heat exchange plate 3, a distribution platform 308 is provided between the third sealing portion 306 and the fourth sealing portion 307. Specifically, the third sealing portion 306 extends inward to form the distribution platform 308. The distribution hole 111 is provided on the distribution platform 308, so that the distribution hole 111 has a sufficient distance from the first heat exchange plate 2 to facilitate fluid flow, thereby facilitating the fluid to flow into the second heat exchange channel 102, further improving the heat exchange efficiency of the plate heat exchanger.

[0044] In a further embodiment of the present invention, the outer edge of the distribution hole 111 extends toward the second heat exchange channel 102 to form a guide portion 309 .

[0045] In this embodiment, the outer edge of the distribution hole 111 extends toward the second heat exchange channel 102 to form a guide portion 309, which can guide the flow direction of the fluid and guide the fluid into the second heat exchange channel 102, further improving the heat exchange efficiency of the plate heat exchanger.

[0046] In a further embodiment of the present invention, a distribution slope 207 is provided on the outer edge of the second sealing portion 206 , and the distribution hole 111 is provided on the distribution slope 207 .

[0047] In this embodiment, when the distribution hole 111 is provided in the first heat exchange plate 2, the outer edge of the second sealing portion 206 is provided with a distribution slope 207. Specifically, the outer edge of the second sealing portion 206 extends outward to form the distribution slope 207, and the distribution hole 111 is provided on the distribution slope 207, so that the distribution hole 111 is at a sufficient distance from the first heat exchange plate 2 to facilitate fluid flow, thereby facilitating the fluid to flow into the second heat exchange channel 102, further improving the heat exchange efficiency of the plate heat exchanger.

[0048] In the description of this specification, reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0050] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A distribution structure of a plate heat exchanger, characterized in that: include: A heat exchange assembly, the heat exchange assembly comprising a plurality of first heat exchange plates and a plurality of second heat exchange plates, the plurality of first heat exchange plates and the plurality of second heat exchange plates being alternately arranged to form the heat exchange assembly, the second side of the first heat exchange plate cooperating with the first side of the adjacent second heat exchange plate to form a first heat exchange channel, and the second side of the second heat exchange plate cooperating with the second side of the adjacent first heat exchange plate to form a second heat exchange channel; The heat exchange component is provided with a plurality of fluid distribution chambers, a plurality of first fluid outlet chambers, a plurality of fluid inlet chambers and a plurality of second fluid outlet chambers, and the heat exchange component is also provided with a plurality of distribution holes; The fluid distribution cavity is communicated with the second heat exchange channel through the distribution hole, the first fluid outlet cavity is communicated with the second heat exchange channel, the fluid inlet cavity is communicated with the first heat exchange channel, and the second fluid outlet cavity is communicated with the first heat exchange channel.

2. The distribution structure of the plate heat exchanger according to claim 1, characterized in that: The first end of the first heat exchange plate is provided with a first fluid inlet area and a second fluid inlet area, the second end of the first heat exchange plate is provided with a first fluid outlet area and a second fluid outlet area, the first end of the second heat exchange plate is provided with a third fluid inlet area cooperating with the first fluid inlet area and a fourth fluid inlet area cooperating with the second fluid inlet area, the second end of the second heat exchange plate is provided with a third fluid outlet area cooperating with the first fluid outlet area and a fourth fluid outlet area cooperating with the second fluid outlet area, the first fluid inlet area and the third fluid inlet area cooperate to form the fluid distribution cavity, the second fluid inlet area and the fourth fluid inlet area cooperate to form the fluid inlet cavity, the first fluid outlet area and the third fluid outlet area cooperate to form the first fluid outlet cavity, and the second fluid outlet area and the fourth fluid outlet area cooperate to form the second fluid outlet cavity.

3. The distribution structure of the plate heat exchanger according to claim 2, characterized in that: The distribution hole is opened on the third fluid inlet area of the second heat exchange plate, and the distribution hole is connected to the fluid distribution cavity; or the distribution hole is opened on the first fluid inlet area of the first heat exchange plate, and the distribution hole is connected to the fluid distribution cavity.

4. The distribution structure of the plate heat exchanger according to claim 3, characterized in that: The heat exchange component is also provided with a first inlet, a first outlet, a second inlet and a second outlet. The position of the first inlet corresponds to the position of the first fluid inlet area and the third fluid inlet area, the first inlet is connected to the fluid distribution chamber, the position of the first outlet corresponds to the position of the first fluid outlet area and the third fluid outlet area, the first outlet is connected to the first fluid outlet chamber, the position of the second inlet corresponds to the position of the second fluid inlet area and the fourth fluid inlet area, the second inlet is connected to the fluid inlet chamber, the position of the second outlet corresponds to the position of the second fluid outlet area and the fourth fluid outlet area, and the second outlet is connected to the second fluid outlet chamber.

5. The distribution structure of the plate heat exchanger according to claim 4, characterized in that: The outer edge of the first fluid inlet area extends toward the second side of the first heat exchange plate to form a first sealing portion, and the outer edge of the third fluid inlet area extends toward the first side of the second heat exchange plate to form a third sealing portion. The first sealing portion of the first heat exchange plate and the third sealing portion of the adjacent second heat exchange plate are sealed and cooperated to form the fluid distribution chamber.

6. The distribution structure of the plate heat exchanger according to claim 5, characterized in that: The middle portion of the first fluid inlet area extends toward the first side of the first heat exchange plate to form a second sealing portion, and the middle portion of the third fluid inlet area extends toward the second side of the second heat exchange plate to form a fourth sealing portion. The second sealing portion of the first heat exchange plate is sealed and connected to the fourth sealing portion of the adjacent second heat exchange plate.

7. The distribution structure of the plate heat exchanger according to claim 6, characterized in that: A distribution platform is provided between the third sealing portion and the fourth sealing portion, and the distribution hole is provided on the distribution platform.

8. The distribution structure of the plate heat exchanger according to claim 7, characterized in that: The outer edge of the distribution hole extends toward the second heat exchange channel to form a guide portion.

9. The distribution structure of the plate heat exchanger according to claim 6, characterized in that: The outer edge of the second sealing portion is provided with a distribution slope, and the distribution hole is provided on the distribution slope.

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