Liquid separator device and plate heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a liquid separator device and a plate heat exchanger. The liquid separator device is installed in a first cavity of the plate heat exchanger and comprises a liquid separator end socket and a liquid separator body. A through hole is formed in the liquid separator sealing head; a containing cavity is formed in the liquid separator body and communicated with the through hole. A plurality of side holes are formed in the outer wall of the liquid separator body and communicate with the containing cavity. And / or a bottom hole is formed in the bottom of the liquid separator body, and the bottom hole is communicated with the containing cavity. The two-phase refrigerant is blocked and disturbed through the inner wall of the containing cavity, so that the flowing rate of the two-phase refrigerant is increased, more two-phase refrigerant can flow towards the specific direction of the plate heat exchanger as much as possible, the redistribution effect on the two-phase refrigerant is achieved, and the heat exchange efficiency of the plate heat exchanger is improved. The distribution uniformity of two-phase refrigerants is improved, the heat exchange efficiency of the plate heat exchanger is improved, and the cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field especially relates to a distributor device and plate heat exchanger. BACKGROUND

[0002] In the plate heat exchanger, since the refrigerant is in two-phase state at the inlet channel, the distribution state of the refrigerant is affected by the inlet channel structure, inlet flow direction, heat exchanger placement position and other factors.

[0003] In the actual operation process, due to the assembly requirement of external interface, the inlet of the refrigerant is often arranged at the middle position of the top plate, which needs to additionally increase the flow guide structure to guide the refrigerant, so that the refrigerant can smoothly reach the inlet channel. In the process of two-phase refrigerant flow, the two-phase refrigerant will be impacted and diverted in the flow guide structure, and when the two-phase refrigerant reaches the inlet channel, its flow rate will slow down, which makes it more difficult for the two-phase refrigerant to flow to the bottom of the plate heat exchanger, resulting in uneven distribution of the refrigerant, reducing the heat exchange efficiency of the plate heat exchanger and increasing the cost.

[0004] Therefore, it is urgent to design a distributor device and plate heat exchanger to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The first purpose of the utility model is to provide a distributor device that can improve the uniformity of two-phase refrigerant distribution, improve the heat exchange efficiency of the plate heat exchanger and save cost.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a distributor device, which is installed in the first cavity of the plate heat exchanger, and comprises:

[0008] A distributor head is provided with a through hole;

[0009] A distributor body has a receiving chamber inside, and the receiving chamber is in communication with the through hole;

[0010] A plurality of side holes are formed on the outer wall of the distributor body, and the side holes are in communication with the receiving chamber; and / or, a bottom hole is formed on the bottom of the distributor body, and the bottom hole is in communication with the receiving chamber.

[0011] As an optional technical solution of the distributor device, the side holes are circular, and a plurality of side holes are arranged at equal intervals, and the hole diameter of the side hole gradually increases in the direction away from the distributor head.

[0012] As an optional technical scheme of the liquid distributor device, the diameter of the side hole is set to be between 0.5mm and 2mm.

[0013] As an optional technical scheme of the liquid distributor device, the distance between two adjacent side holes gradually decreases in the direction away from the liquid distributor head.

[0014] As an optional technical scheme of the liquid distributor device, the side holes are arranged in multiple columns.

[0015] As an optional technical scheme of the liquid distributor device, the liquid distributor head comprises an integral circular arc part and a straight line part, and the straight line part is configured to limit the rotation of the liquid distributor head.

[0016] The second purpose of the utility model is to provide a plate heat exchanger which can improve the distribution uniformity of two-phase refrigerant, improve heat exchange efficiency, save energy consumption and save cost.

[0017] In order to achieve the purpose, the utility model adopts the following technical scheme:

[0018] The utility model provides a plate heat exchanger, the plate heat exchanger includes heat exchange core body, bottom plate and the liquid distributor device in any optional technical scheme, the first cavity and the first flow channel that are communicated with each other are arranged in the heat exchange core body, the second cavity and the second flow channel that are communicated with each other, the first flow channel and the second flow channel are isolated, the bottom plate is connected with the heat exchange core body, and the liquid distributor body of the liquid distributor device passes through the bottom plate and is placed in the first cavity, and the liquid distributor head of the liquid distributor device is connected with the bottom plate.

[0019] As an optional technical scheme of the plate heat exchanger, the plate heat exchanger comprises a flow channel plate and a cover plate, the flow channel plate is arranged between the cover plate and the bottom plate, a flow guide channel is arranged in the flow channel plate, the flow guide channel is communicated with the through hole of the liquid distributor device, and the flow guide channel is configured to guide two-phase refrigerant to the liquid distributor device.

[0020] As an optional technical scheme of the plate heat exchanger, a first medium inlet and a first medium outlet are arranged on the cover plate, the first medium inlet is communicated with the flow guide channel, and the first medium outlet is communicated with the first flow channel.

[0021] As an optional technical scheme of the plate heat exchanger, the plate heat exchanger further comprises a top plate, the top plate is connected with the heat exchange core body, a second medium inlet and a second medium outlet are arranged on the top plate, the second medium inlet is sequentially communicated with the second cavity, the second flow channel and the second medium outlet, and the first medium in the first flow channel and the second medium in the second flow channel are arranged in countercurrent.

[0022] The beneficial effects of the present application at least include:

[0023] The utility model provides a kind of liquid distributor device, which is installed in the first cavity of plate heat exchanger, and the liquid distributor device includes liquid distributor head and liquid distributor body. The through hole is formed on the liquid distributor head. The accommodating chamber is formed in the liquid distributor body, and the accommodating chamber is communicated with the through hole. A plurality of side holes are formed on the outer wall of the liquid distributor body, and the plurality of side holes are communicated with the accommodating chamber. Alternatively, a bottom hole is formed on the bottom of the liquid distributor body, and the bottom hole is communicated with the accommodating chamber.

[0024] The liquid distributor head is welded and connected with the bottom plate of the plate heat exchanger, and the liquid distributor body is arranged in the first cavity. The side hole and the bottom hole can be arranged on the liquid distributor body at the same time, or only one of them can be arranged. The two-phase refrigerant flows into the accommodating chamber through the through hole on the liquid distributor head, is redistributed in the accommodating chamber, and finally flows out of the side hole and / or the bottom hole into the first flow channel of the plate heat exchanger. The inner wall of the accommodating chamber (except the other areas of the side hole and the bottom hole) disturbs and blocks the two-phase refrigerant, thereby increasing the flow rate of the two-phase refrigerant, and making more two-phase refrigerant flow towards the bottom of the plate heat exchanger as much as possible, so as to realize the redistribution of the two-phase refrigerant, thereby improving the distribution uniformity of the two-phase refrigerant, improving the heat exchange efficiency of the plate heat exchanger, and saving costs.

[0025] The utility model also provides a kind of plate heat exchanger, which can improve the distribution uniformity of the two-phase refrigerant, improve the heat exchange efficiency, save energy consumption and save costs. BRIEF DESCRIPTION OF DRAWINGS

[0026] To more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and these drawings.

[0027] Figure 1 is the structure diagram of the liquid distributor device provided in the first embodiment of the present application;

[0028] Figure 2 is the top view of the liquid distributor device provided in the first embodiment of the present application;

[0029] Figure 3 is the structure diagram of the plate heat exchanger provided in the first embodiment of the present application;

[0030] Figure 4 is an exploded view of the plate heat exchanger provided by the embodiment one of the present application;

[0031] Figure 5 is a partial sectional view of the plate heat exchanger provided by the embodiment one of the present application;

[0032] Figure 6 is a flow distribution diagram of the first medium and the second medium in the heat exchange core provided by the embodiment one of the present application;

[0033] Figure 7 is a structure schematic view of the liquid separator device provided by the embodiment two of the present application;

[0034] Figure 8 is a partial sectional view of the plate heat exchanger provided by the embodiment two of the present application;

[0035] Figure 9 is a flow distribution diagram of the first medium and the second medium in the heat exchange core provided by the embodiment two of the present application;

[0036] Figure 10 is a structure schematic view of the liquid separator device provided by the embodiment three of the present application;

[0037] Figure 11 is a partial sectional view of the plate heat exchanger provided by the embodiment three of the present application;

[0038] Figure 12 is a flow distribution diagram of the first medium and the second medium in the heat exchange core provided by the embodiment three of the present application.

[0039] Reference signs

[0040] 100, liquid separator device; 110, liquid separator head; 1101, through hole; 1102, circular arc part; 1103, straight line part; 120, liquid separator body; 1201, side hole; 1202, bottom hole;

[0041] 200, heat exchange core; 210, first cavity; 220, first flow channel; 230, second cavity; 240, second flow channel; 300, bottom plate; 400, flow channel plate; 410, flow guide channel; 500, cover plate; 510, first medium inlet; 520, first medium outlet; 600, top plate; 610, second medium inlet; 620, second medium outlet. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0044] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0045] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0046] In the description of the present application, it should also be noted that, unless otherwise specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0049] Example 1

[0050] This embodiment provides a distributor device that can improve the uniformity of refrigerant distribution in two phases, improve the heat exchange efficiency of plate heat exchangers, and save costs.

[0051] like Figures 1-2 As shown, the distributor device 100 is installed in the first cavity 210 of the plate heat exchanger. The distributor device 100 mainly includes a distributor head 110 and a distributor body 120. The distributor head 110 has a through hole 1101; the distributor body 120 has an internal receiving chamber that communicates with the through hole 1101. Multiple side holes 1201 are formed on the outer wall of the distributor body 120, all of which communicate with the receiving chamber; and a bottom hole 1202 is formed at the bottom of the distributor body 120, which communicates with the receiving chamber.

[0052] Based on the above design, in the embodiment, the distributor head 110 is welded to the bottom plate 300 of the plate heat exchanger, and the distributor body 120 is arranged in the first cavity 210. The side hole 1201 and the bottom hole 1202 can be arranged on the distributor body 120 at the same time, or one of them can be arranged. The two-phase refrigerant flows into the accommodation chamber through the through hole 1101 on the distributor head 110, is redistributed in the accommodation chamber, and finally flows out to the first flow channel 220 of the plate heat exchanger through the side hole 1201 and the bottom hole 1202. The inner wall of the accommodation chamber (except other areas of the side hole 1201 and the bottom hole 1202) blocks and disturbs the two-phase refrigerant, thereby increasing the flow rate of the two-phase refrigerant, allowing more two-phase refrigerant to flow towards the bottom of the plate heat exchanger, thereby achieving the redistribution of the two-phase refrigerant, improving the uniformity of the distribution of the two-phase refrigerant, improving the heat exchange efficiency of the plate heat exchanger, and saving costs.

[0053] Optionally, the side hole 1201 in the embodiment can be provided in various shapes, for example, the side hole 1201 can be provided in a circular shape, a square shape, an oval shape, etc.

[0054] Preferably, the side hole 1201 in the embodiment is circular, and a plurality of side holes 1201 are arranged at equal intervals, and the diameter of the side hole 1201 gradually increases in the direction away from the distributor head 110, which can improve the flow of the two-phase refrigerant at the bottom of the plate heat exchanger, further improve the uniformity of the distribution of the two-phase refrigerant, and improve the heat exchange efficiency.

[0055] Optionally, the diameter of the side hole 1201 in the embodiment is set to be between 0.5mm and 2mm, for example, the diameter of the side hole 1201 can be set to 0.5mm, 1.0mm, 1.5mm, 2.0mm, etc. At the same time, the operator can also set the hole diameter of the side hole 1201 of other sizes according to actual needs, which will not be described here.

[0056] Optionally, in some optional embodiments, the distance between adjacent two side holes 1201 gradually decreases in the direction away from the distributor head 110. That is, the density of the side hole 1201 gradually increases in the direction away from the distributor head 110, which can improve the flow of the two-phase refrigerant at the bottom of the plate heat exchanger, further improve the uniformity of the distribution of the two-phase refrigerant, and improve the heat exchange efficiency. It can be understood that when the side hole 1201 adopts the scheme of becoming denser and denser in the direction away from the distributor head 110, the hole diameters of the plurality of side holes 1201 are the same.

[0057] Optionally, in the embodiment, the side holes 1201 are arranged in multiple columns in the direction away from the distributor head 110, so as to adapt to the case of large flow and improve the heat exchange efficiency of the plate heat exchanger. For example, the side holes 1201 can be arranged in one column, two columns, three columns, etc.

[0058] As shown in Figures 3-6 , the embodiment also provides a plate heat exchanger, which comprises the heat exchange core 200, the bottom plate 300 and the above-mentioned distributor device 100. The heat exchange core 200 is provided with the first cavity 210 and the first flow channel 220 in communication with each other, the second cavity 230 and the second flow channel 240 in communication with each other, and the first flow channel 220 and the second flow channel 240 are isolated from each other. The bottom plate 300 is connected with the heat exchange core 200, the distributor body 120 of the distributor device 100 penetrates through the bottom plate 300 and is arranged in the first cavity 210, and the distributor head 110 of the distributor device 100 is connected with the bottom plate 300. It should be noted that the first flow channel 220 is the solid arrow in Figure 6 , and the second flow channel 240 is the dashed arrow in Figure 6 .

[0059] The first flow channel 220 and the second flow channel 240 are both arranged in multiple numbers, and the first flow channel 220 and the second flow channel 240 are arranged alternately. The first flow channel 220 and the second flow channel 240 are isolated from each other by the heat exchange plate, and the first medium in the first flow channel 220 and the second medium in the second flow channel 240 exchange heat through the heat exchange plate. The multiple first flow channels 220 and the multiple second flow channels 240 constitute a multi-layer heat exchange structure. Optionally, each side hole 1201 corresponds to a first flow channel 220, and the side hole 1201 guides the two-phase refrigerant, so that each side hole 1201 can guide the two-phase refrigerant towards the corresponding first flow channel 220, thereby improving the heat exchange performance of the in-layer heat exchange structure and reducing the influence of gravity on the single guidance of the two-phase refrigerant.

[0060] Through the arrangement of the distributor device 100, the distribution uniformity of the two-phase refrigerant between the layers can be improved, and the heat exchange efficiency of the plate heat exchanger can be improved.

[0061] Optionally, in the embodiment, the distributor head 110 of the distributor device 100 is welded to the bottom plate 300, for example, the welding can be performed in the way of brazing. In other words, the distributor in the embodiment is only welded to the bottom plate 300 through the distributor head 110, so as to reduce the welding surface, reduce the requirement of the size of the parts on the fitting tolerance, reduce the risk of welding failure, and prolong the service life.

[0062] Optionally, the dispenser head 110 in this embodiment includes an integrally formed arc portion 1102 and a straight portion 1103. The straight portion 1103 is configured to restrict the rotation of the dispenser head 110, thereby improving the positioning effect on the dispenser device 100 and preventing the dispenser device 100 from rotating during use.

[0063] like Figures 3-5 As shown, in this embodiment, the plate heat exchanger includes a flow channel plate 400 and a cover plate 500. The flow channel plate 400 is disposed between the cover plate 500 and the bottom plate 300. A flow channel 410 is provided inside the flow channel plate 400, which communicates with the through hole 1101 of the distributor device 100. The flow channel 410 is configured to guide the two-phase refrigerant to the distributor device 100. The cover plate 500 is provided with a first medium inlet 510 and a first medium outlet 520. The first medium inlet 510 communicates with the flow channel 410, and the first medium outlet 520 communicates with the first flow channel 220.

[0064] By setting up the flow channel 410, the flexibility of setting up the first medium inlet 510 can be improved, thereby meeting the requirements of the external interface for the setting position of the first medium inlet 510, and improving the convenience and efficiency of assembly.

[0065] Optionally, in this embodiment, the flow channel plate 400, the cover plate 500, and the heat exchange core 200 are all brazed together.

[0066] like Figures 3-5 As shown, in this embodiment, the plate heat exchanger also includes a top plate 600, which is connected to the heat exchange core 200. The top plate 600 is provided with a second medium inlet 610 and a second medium outlet 620. The second medium inlet 610 is connected to the second cavity 230, the second flow channel 240 and the second medium outlet 620 in sequence. The first medium in the first flow channel 220 and the second medium in the second flow channel 240 are arranged in countercurrent flow, thereby improving the heat exchange efficiency of the plate heat exchanger.

[0067] Optionally, in this embodiment, a number of guide ribs may be provided in the heat exchange plate of the heat exchange core 200, so that the first medium in the first flow channel 220 forms a multi-flow structure and the second medium in the second flow channel 240 forms a multi-flow structure, thereby further improving the heat exchange efficiency of the plate heat exchanger.

[0068] Optionally, in this embodiment, the first medium is set as a refrigerant, such as R134a, R1234yf or other types of refrigerants, and the second medium can be water, coolant, oil, etc.

[0069] Figure 6The solid arrows in the diagram indicate the distribution of the first medium (two-phase refrigerant), and the length of the solid arrows indicates the amount of the first medium distributed. The dashed arrows indicate the distribution of the second medium (e.g., water, coolant, oil). Since the second medium is a liquid, it is distributed relatively evenly in the second flow channel 240, and there is no need to install a distributor device 100 in the second cavity 230.

[0070] Because the plate heat exchanger has the aforementioned distributor device 100, it can improve the uniformity of refrigerant distribution in both phases, increase heat exchange efficiency, save energy, and reduce costs.

[0071] Example 2

[0072] like Figures 7-9 As shown, this embodiment provides a distributor device 100, the main difference from Embodiment 1 being that the distributor body 120 of this distributor device 100 has a bottom hole 1202 at its bottom, which communicates with the receiving chamber. In this embodiment, the sidewall of the distributor body 120 is a solid structure, meaning that the sidewall of the distributor body 120 does not have a side hole 1201. This allows more of the first medium (two-phase refrigerant) to be distributed in the first flow channel 220 on the side furthest from the first medium inlet 510. Compared to the distributor device 100 in Embodiment 1, the distributor device 100 in this embodiment can further increase the flow rate of the two-phase refrigerant at the bottom of the plate heat exchanger.

[0073] It should be noted that in this embodiment, the bottom hole 1202 has a certain gap with the bottom of the plate heat exchanger, which facilitates the flow of the first medium.

[0074] The distributor device 100 in this embodiment is suitable for situations where the flow rate of the two-phase refrigerant is not fast, and effectively improves the uniformity of the distribution of the two-phase refrigerant.

[0075] Figure 9 The solid arrows in the diagram indicate the distribution of the first medium (two-phase refrigerant), and the length of the solid arrows indicates the amount of the first medium distributed. The dashed arrows indicate the distribution of the second medium (e.g., water, coolant, oil). Since the second medium is a liquid, it is distributed relatively evenly in the second flow channel 240, and there is no need to install a distributor device 100 in the second cavity 230.

[0076] The remaining structures of the liquid dispenser device 100 in this embodiment are the same as those in Embodiment 1, and will not be described in detail here.

[0077] Example 3

[0078] like Figures 10-12As shown, the embodiment provides a distributor device 100, and the main difference between the embodiment one is that a plurality of side holes 1201 are formed on the outer wall of the distributor body 120 of the distributor device 100, and the plurality of side holes 1201 are all in communication with the accommodation chamber, and the bottom of the distributor body 120 in the embodiment is a solid structure, that is, the bottom of the distributor body 120 is not provided with a bottom hole 1202. And the bottom end of the distributor body 120 in the embodiment is in contact or welded connection with the bottom wall of the first cavity 210, that is, the distributor body 120 in the embodiment is designed to be lengthened, and the length thereof is the same as the length of the first cavity 210. By removing the design of the bottom hole 1202, the two-phase refrigerant can be blocked and disturbed multiple times in the accommodation chamber, so that the two-phase refrigerant can be more fully mixed, and the uniformity of distribution is further improved.

[0079] Figure 12 The solid arrows in the figure represent the distribution of the first medium (two-phase refrigerant), and the length of the solid arrows represents the distribution amount of the first medium; the dashed arrows represent the distribution of the second medium (for example, water, coolant, oil), and since the second medium is a liquid, the second medium is distributed more uniformly in the second flow channel 240, and the second cavity 230 does not need to be provided with the distributor device 100.

[0080] The remaining structure of the distributor device 100 in the embodiment is the same as that of the embodiment one, and will not be described one by one here.

[0081] Obviously, the above only describes preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

[0082] Note that in the description of the present specification, the description referring to the terms "some embodiments", "other embodiments", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A distributor device, characterized by The distributor device (100) is installed in a first cavity (210) of a plate heat exchanger, and the distributor device (100) comprises: a distributor head (110) having a through hole (1101) formed thereon; a distributor body (120) having an accommodation chamber formed therein, the accommodation chamber being in communication with the through hole (1101); a plurality of side holes (1201) formed in the outer wall of the distributor body (120), the side holes (1201) being in communication with the accommodation chamber; and / or a bottom hole (1202) formed in the bottom of the distributor body (120), the bottom hole (1202) being in communication with the accommodation chamber.

2. The liquid dispenser device according to claim 1, characterized in that The side holes (1201) are circular, and a plurality of the side holes (1201) are arranged at equal intervals, and the diameters of the side holes (1201) gradually increase in a direction away from the distributor head (110).

3. The liquid dispenser device of claim 2, wherein, The diameters of the side holes (1201) are set to be between 0.5 mm and 2 mm.

4. The dispenser device of claim 1, wherein, The distance between adjacent two side holes (1201) gradually decreases in a direction away from the distributor head (110).

5. The dispenser device of claim 1, wherein, The side holes (1201) are arranged in multiple rows.

6. The dispenser device of claim 1, wherein, The distributor head (110) comprises an integral circular arc portion (1102) and a straight line portion (1103), and the straight line portion (1103) is configured to limit the rotation of the distributor head (110).

7. A plate heat exchanger, characterised in that The plate heat exchanger comprises a heat exchange core (200), a bottom plate (300), and the distributor device (100) according to any one of claims 1-6, the heat exchange core (200) is provided with a first cavity (210) and a first flow channel (220) in communication with each other, a second cavity (230) and a second flow channel (240) in communication with each other, the first flow channel (220) and the second flow channel (240) are isolated from each other, the bottom plate (300) is connected with the heat exchange core (200), and the distributor body (120) of the distributor device (100) penetrates through the bottom plate (300) and is arranged in the first cavity (210), and the distributor head (110) of the distributor device (100) is connected with the bottom plate (300).

8. The plate heat exchanger according to claim 7, characterized in that The plate heat exchanger comprises a flow channel plate (400) and a cover plate (500), the flow channel plate (400) is arranged between the cover plate (500) and the bottom plate (300), the flow channel plate (400) is provided with a flow guide channel (410), the flow guide channel (410) is in communication with the through hole (1101) of the distributor device (100), and the flow guide channel (410) is configured to guide two-phase refrigerant to the distributor device (100).

9. The plate heat exchanger according to claim 8, characterized in that The cover plate (500) is provided with a first medium inlet (510) and a first medium outlet (520), the first medium inlet (510) is in communication with the flow guide channel (410), and the first medium outlet (520) is in communication with the first flow channel (220).

10. The plate heat exchanger according to claim 9, characterized in that The plate heat exchanger further comprises a top plate (600) connected with the heat exchange core (200), the top plate (600) is provided with a second medium inlet (610) and a second medium outlet (620), the second medium inlet (610) is in communication with the second cavity (230), the second flow channel (240) and the second medium outlet (620) in sequence, and the first medium in the first flow channel (220) and the second medium in the second flow channel (240) are countercurrently arranged.

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