Distributor structure of plate heat exchanger plate

Abstract

The utility model relates to a distributor structure of a plate heat exchanger plate, which comprises an upper plate, a lower plate and a distribution round hole, and is characterized in that the distribution round hole is provided with a guide groove, and the guide groove forms a storage space and guides a heat exchange medium to the distribution round hole. The guide groove comprises an upper notch and a lower notch, and the upper notch and the lower notch are combined to form a storage space. Through the arrangement of the guide grooves, storage spaces can be formed around the distribution round holes to store heat exchange media, the heat exchange media are guided by the guide grooves to quickly flow into the distribution round holes after being stored in the storage spaces, the storage and drainage functions are formed, and the heat exchange media can quickly flow into the guide grooves on the plate sheets; and meanwhile, due to the guiding effect, the problems of turbulent flow, liquid separation and backflow cannot be formed at the inlet positions of the distribution round holes, and the stability of the whole heat exchanger is protected.

Description

Technical Field

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

[0002] In the current plate heat exchanger, the distributor on the plate heat exchanger is a small circular hole formed by an upper semi-circular notch and a lower semi-circular notch. The liquid is introduced into the next layer of the plate heat exchanger through the small circular hole channel, as Figures 1 to 3 shown.

[0003] Firstly, because the opening of the small distribution circular hole is small, the refrigerating liquid cannot flow quickly, and the refrigerating liquid will form turbulence and vortices on the plate, thus generating noise.

[0004] Secondly, the refrigerating liquid will impact the plate at the original position of the small circular hole and rub the plate, thus causing the pressure of the heat exchanger to increase. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems of noise generation and damage in the distributor part of the existing plate heat exchanger, and to propose a distributor structure for plate heat exchanger plates.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A distributor structure for plate heat exchanger plates, including an upper plate, a lower plate and a distribution circular hole. The distribution circular hole is equipped with a guiding groove, and the guiding groove forms a storage space and guides the heat exchange medium to the distribution circular hole.

[0007] The guiding groove includes an upper notch and a lower notch, and the upper notch and the lower notch are combined to form a storage space.

[0008] The distribution circular hole is located in the storage space.

[0009] The height of the storage space formed by the upper notch and the lower notch is 4 - 6 mm, and the width of the storage space formed by the upper notch and the lower notch is 10 - 15 mm.

[0010] The distribution circular hole is formed by the combination of the upper plate and the lower plate.

[0011] An arc-shaped vacancy is provided on the upper plate, and an arc-shaped vacancy is also formed at the position of the lower plate corresponding to the arc-shaped vacancy of the upper plate. The two arc-shaped vacancies are combined to form the distribution circular hole.

[0012] There are two distribution circular holes, each distribution circular hole is provided with a corresponding guiding groove, and each guiding groove forms a storage space corresponding to its respective distribution circular hole.

[0013] Through the arrangement of the guiding groove, a storage space can be formed around the distribution round hole to store the heat exchange medium. After being stored in the storage space, the heat exchange medium is guided by the guiding groove and quickly flows into the distribution round hole, forming the functions of storage and drainage. The heat exchange medium will quickly flow into the guiding groove on the plate, thus avoiding the noise caused by the liquid hitting the plate. At the same time, due to the guiding effect, there will be no problems of turbulent flow, liquid separation and backflow at the inlet position of the distribution round hole.

[0014] On the other hand, by setting two distribution round holes, the flow rate of the heat exchange medium and the drainage effect can be improved, once again avoiding the impact of the heat exchange medium on the plate, reducing noise and preventing the excessive pressure of the heat exchanger, protecting the stability of the entire heat exchanger. Brief Description of the Drawings

[0015] Figure 1 is a schematic three-dimensional structure diagram of the existing distribution round hole;

[0016] Figure 2 Figure 1 front view of;

[0017] Figure 3 is Figure 2 sectional view of part B-B in;

[0018] Figure 4 schematic three-dimensional structure diagram of an embodiment of the present utility model;

[0019] Figure 5 is Figure 4 front view of;

[0020] Figure 6 is Figure 5 sectional view at position B-B in;

[0021] Figure 7 is Figure 5 sectional view at position C-C in;

[0022] Figure 8 schematic three-dimensional structure diagram of another embodiment of the present utility model;

[0023] Figure 9 is Figure 8 front view of the half-piece structure;

[0024] Figure 10 is Figure 9 sectional view at position B-B in.

[0025] Legend: 1. upper plate; 2. lower plate; 3. distribution round hole; 4. guiding groove; 5. upper notch; 6. lower notch; 31. arc vacancy. Detailed Embodiment

[0026] Refer toFigures 1 to 3 As shown, the existing distribution round holes are formed by pressing two plates together first. For example Figure 3 as shown in , then the punching operation is carried out. The punching will cause the deformation of the arc holes, and then the small holes formed by the upper notch and the lower notch will be deformed. Then the size and position of each distribution round hole cannot be kept the same, which will lead to different liquid separation amounts in each layer, and further affect the efficiency of the heat exchanger.

[0027] Secondly, the opening of the distribution small round holes is small, and the refrigeration liquid cannot flow quickly. The refrigeration liquid will form turbulence and vortices on the plate, thus generating noise and increasing the pressure of the heat exchanger.

[0028] Next, the specific structure and function of the distributor will be described in detail.

[0029] Referring to Figures 4 to 7 as shown, in this embodiment: as Figure 5 shown in the semi-sheet structure, both the upper plate 1 and the lower plate 2 are provided with arc-shaped vacancies 31. The arc-shaped vacancies 31 of the two plates form the distribution round holes 3, as Figure 4 and Figure 7 shown in . At the same time, upper notches 5 and lower notches 6 are evenly formed around the arc-shaped vacancies 31 on the upper plate 1 and the lower plate 2. The upper notches 5 and the lower notches 6 are both guiding grooves 4 of the distribution round holes 3, which respectively guide the heat exchange medium to the distribution round holes 3. In this way, a storage space is formed between the upper notches 5 and the lower notches 6, and the heat exchange medium can be preliminarily stored in the storage space to avoid the problems of turbulent flow, liquid diversion and backflow formed by pouring into the distribution round holes 3.

[0030] At the same time, because the upper notches 5 and the lower notches 6 also have the function of the guiding grooves 4 to guide the heat exchange medium to converge into the distribution round holes 3, the impact of the heat exchange medium on the plate is avoided, and thus the noise of the heat exchanger can be reduced, the excessive pressure of the heat exchanger can be avoided, and the stability of the heat exchanger is protected.

[0031] Referring to Figure 6 , in this embodiment, the depth of the guiding groove 4 formed by the upper notch 5 is 2 - 3 mm, the upper and lower plates 2 are symmetrically arranged, the depth of the guiding groove 4 formed by the lower notch 6 is also 2 - 3 mm, the height of the formed storage space is 4 - 6 mm, and the width of the upper notch 5 and the lower notch 6 is set to 10 - 15 mm.

[0032] At the same time, the use of stamping to form the distribution round holes 3 is also avoided, so that the size of each round hole channel can be guaranteed to be consistent as much as possible. At this time, the liquid separation amounts in each layer can be guaranteed to be different, and the heat exchange effect of the heat exchanger is further guaranteed.

[0033] As Figures 8 to 10As shown in the figure, in another embodiment of the present case, two distribution round holes 3 are provided on each plate, and each distribution round hole 3 is provided with a semi-circular guiding groove 4. Two storage spaces are formed through the two guiding grooves 4, corresponding to the two distribution round holes 3 respectively.

[0034] Through the drainage of the two distribution round holes 3, the flow rate and drainage effect of the heat exchange medium are improved.

[0035] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

Claims

1. A plate distributor structure for a plate heat exchanger, comprising an upper plate (1), a lower plate (2) and a distribution circular hole (3), characterized in that: The distribution circular hole (3) is equipped with a guide groove (4), and the guide groove (4) forms a storage space and guides the heat exchange medium to the distribution circular hole (3).

2. A distributor structure for a plate heat exchanger according to claim 1, characterized in that: The guide groove (4) comprises an upper notch (5) and a lower notch (6); the upper notch (5) and the lower notch (6) are combined to form a storage space; the distribution circular hole (3) is located in the storage space.

3. A distributor structure for a plate heat exchanger according to claim 2, characterized in that: The height of the storage space formed by the upper notch (5) and the lower notch (6) is 4-6 mm, and the width of the storage space formed by the upper notch (5) and the lower notch (6) is 10-15 mm.

4. A distributor structure for a plate heat exchanger according to claim 1 or 3, characterized in that: The distribution circular hole (3) is formed by combining an upper plate (1) and a lower plate (2).

5. A distributor structure for a plate heat exchanger according to claim 4, characterized in that: The upper plate (1) is provided with an arc-shaped gap (31), and the lower plate (2) is also provided with an arc-shaped gap (31) at a position corresponding to the arc-shaped gap (31) of the upper plate (1), and the two arc-shaped gaps (31) are combined to form the distribution circular hole (3).

6. A distributor structure for a plate heat exchanger according to claim 2, characterized in that: There are two distribution circular holes (3), each of which is provided with a corresponding guide groove (4), and each guide groove (4) forms a storage space corresponding to its own distribution circular hole (3).

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