Corner hole distributor and plate heat exchanger matched with same

Abstract

The utility model discloses a corner hole distributor and a plate heat exchanger matched with the corner hole distributor for use, and the corner hole distributor comprises a distributor main body with an axial through channel, the distributor body is used for being installed in a refrigerant side space of the plate heat exchanger so as to be connected and communicated with first corner holes oppositely formed in heat exchange plates on the two sides to form an inlet channel, and at least one communicating channel communicating the inlet channel with the refrigerant side space is further constructed and arranged on the distributor body. The corner hole distributor is an independent component, and the plate heat exchanger can be flexibly provided with the corner hole distributor to be used as an evaporator or not provided with the corner hole distributor to be used as a condenser according to specific working condition requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to an orifice distributor and a plate heat exchanger used in cooperation with the orifice distributor. Background Art

[0002] At present, plate heat exchangers are widely used as evaporators and condensers in heat pump refrigeration systems; when the plate heat exchanger is used as an evaporator, an orifice distributor is usually arranged at the refrigerant inlet to optimize the distribution of the refrigerant in the inter-plate channel, so that the refrigerant flow is more uniform; when the plate heat exchanger is used as a condenser, a distributor is not required; however, the plates of the existing plate heat exchangers are mostly integrally stamped and formed structures, and the orifice distributor is generally a restricted hole implemented on the plate structure near the orifice area or a communication channel formed by the alignment of grooves arranged on adjacent plates. The orifice distributor with the above structure cannot be flexibly implemented to be set or not set according to specific requirements, and there is room for improvement. Summary of the Utility Model

[0003] The utility model is to overcome the above-mentioned defects in the prior art, and provides an orifice distributor, which is an independently manufactured independent component and can be flexibly set or not set according to the specific requirements of the plate heat exchanger; at the same time, a plate heat exchanger is provided, which can be set with an orifice distributor to be used as an evaporator according to specific requirements, or not set with an orifice distributor to be used as a condenser.

[0004] To achieve the above object, the utility model provides an orifice distributor, including a distributor body with an axially through channel, and the distributor body is used for being installed in the refrigerant side space of the plate heat exchanger to connect and communicate the first orifices arranged oppositely on the two sides of the heat exchange plates to form an inlet channel, and at least one communication channel communicating the inlet channel and the refrigerant side space is further constructed and arranged on the distributor body.

[0005] It is further set that: the distributor body is an integrally formed cylindrical structure, including a cylinder body, and a first sealing lip and a second sealing lip respectively arranged at the two ports of the cylinder body and extending inwards or outwards along the ports, and at least one through hole is arranged on the cylinder body.

[0006] It is further set that: the distributor body is formed by the alignment of a first alignment part and a second alignment part;

[0007] The first alignment part includes a first annular sealing part for engaging and arranging on one side of the heat exchange plate, a first annular alignment part arranged on the outer periphery of the first annular sealing part and extending towards the second alignment part, and a first connecting part connecting the first annular sealing part and the first annular alignment part, and at least one first groove communicating the inner and outer sides is arranged on the first annular alignment part;

[0008] The second mating part includes a second annular sealing part for mating with a second heat exchange plate disposed on the other side, a second annular mating part disposed on the outer periphery of the second annular sealing part and extending toward the first mating part, and a second connecting part connected between the second annular sealing part and the second annular mating part. The second annular mating part is docked and connected with the first annular mating part, and a second groove corresponding to the first groove is provided thereon to form a communication channel in cooperation with the first groove.

[0009] Further provided that: the dispenser body is of a symmetrical structure.

[0010] Further provided that: the dispenser body is made of stainless steel material.

[0011] The present utility model also provides a plate heat exchanger for use in conjunction with the above-mentioned orifice distributor, including at least one set of first heat exchange plates and second heat exchange plates stacked to form a refrigerant side space. First orifice holes arranged oppositely and communicating with the refrigerant side space are provided on both the first heat exchange plates and the second heat exchange plates.

[0012] A convex platform structure bulging upward is provided at the position corresponding to the first orifice hole on the first heat exchange plate, and a first sealing and mating area for mating with the upper end of the dispenser body is provided on the lower surface of the convex platform corresponding to the outer periphery of the first orifice hole.

[0013] A sunk platform structure sunken downward is provided at the position corresponding to the first orifice hole on the second heat exchange plate, and a second sealing and mating area for mating with the lower end of the dispenser body is provided on the upper surface of the sunk platform corresponding to the outer periphery of the first orifice hole.

[0014] Compared with the prior art, the structure of the present utility model is simple and reasonable. The orifice distributor is an independently manufactured independent component. The plate heat exchanger can be flexibly configured to use the orifice distributor as an evaporator according to specific working conditions, or not use the orifice distributor as a condenser. Description of the Drawings

[0015] Figure 1 is a separated structure of a plate heat exchanger of the present utility model;

[0016] Figure 2 is a schematic cross-sectional structure diagram of the plate heat exchanger corresponding to the first orifice hole;

[0017] Figure 3 is Figure 1 a three-dimensional structure diagram of the orifice distributor in

[0018] Figure 4 is Figure 3 a schematic cross-sectional structure diagram of the orifice distributor in

[0019] Figure 5 is a schematic implementation structure diagram of the orifice distributorFigure 2 ;

[0020] Figure 6 is a schematic diagram of the implementation structure of the angular hole distributor Figure 3 。

[0021] Mark the following reference numerals on it in combination with the accompanying drawings:

[0022] 100, the first heat exchange plate; 110, the convex platform; 111, the first angular hole; 112, the first sealing fit area; 200, the second heat exchange plate; 210, the counterbore; 211, the second sealing fit area; 300, the distributor body; 310, the first mating part; 311, the first annular sealing part; 312, the first annular mating part; 3121, the first groove; 313, the first connecting part; 320, the second mating part; 321, the second annular sealing part; 322, the second annular mating part; 3221, the second groove; 323, the second connecting part; 330, the cylinder body; 331, the through hole; 340, the first sealing lip; 350, the second sealing lip; A, the refrigerant side space; B, the inlet channel; C, the communication channel. Detailed implementation manners

[0023] Next, in combination with the accompanying drawings, a specific implementation manner of the present utility model will be described in detail, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation manner.

[0024] An angular hole distributor of the present utility model and a plate heat exchanger used in conjunction therewith are as shown in Figure 1 and Figure 2 and include an independent plate heat exchanger and an angular hole distributor; wherein, the angular hole distributor includes a distributor body 300 having an axially through channel; the plate heat exchanger includes at least one group of first heat exchange plates 100 and second heat exchange plates 200 stacked up and down to form a refrigerant side space A, and opposite first angular holes 111 are provided on both the first heat exchange plate 100 and the second heat exchange plate 200; when the plate heat exchanger is used as an evaporator, the distributor body 300 is installed at the first angular holes 111 in the refrigerant side space A of the plate heat exchanger one by one, and the end faces of both ends of the distributor body 300 are respectively butted against the plate surfaces outside the corresponding first angular holes 111 of the first heat exchange plate 100 and the second heat exchange plate 200 to realize direct conduction between the first angular holes 111 on both sides of the heat exchange plates, so that an inlet channel B isolated from the refrigerant side space A is formed by the cooperation between the first angular holes 111 on both sides and the distributor body 300, and at least one communication channel C connecting the inlet channel B and the refrigerant side space A is further constructed and arranged on the distributor body 300, and the refrigerant flowing into the refrigerant side space A is optimized through at least one communication channel C on the distributor body 300.

[0025] In this embodiment, as shown in Figure 1As shown, the first heat exchange plate 100 of the plate heat exchanger is stacked on the second heat exchange plate 200. At the position corresponding to the first corner hole 111 of the first heat exchange plate 100, a convex platform 110 structure that bulges upward is provided. The lower surface of the convex platform 110 is provided with a first sealing and mating area 112 corresponding to the outer periphery of the first corner hole 111 for mating with the upper end of the distributor body 300; at the position corresponding to the first corner hole 111 of the second heat exchange plate 200, a sunk platform 210 structure that sinks downward is provided. The upper surface of the sunk platform 210 is provided with a second sealing and mating area 211 corresponding to the outer periphery of the first corner hole 111 for mating with the lower end of the distributor body 300; the distributor body 300 is arranged between the first sealing and mating area 112 and the second sealing and mating area 211. Preferably, the shape and size of the convex platform 110 are adapted to the shape and size of the upper end of the distributor body 300, and the shape and size of the sunk platform 210 are adapted to the shape and size of the lower end of the distributor body 300. In this way, it is convenient to position and install the distributor body 300 on the first heat exchange plate 100 and the second heat exchange plate 200.

[0026] In this embodiment, as Figure 3 and Figure 4 shown, the distributor body 300 is formed by mating a first mating part 310 and a second mating part 320. The first mating part 310 includes a first annular sealing part 311 for mating and arranging in the first sealing and mating area 112, a first annular mating part 312 arranged on the outer periphery of the first annular sealing part 311 and extending towards the second mating part 320, and a first connecting part 313 connecting between the first annular sealing part 311 and the first annular mating part 312. The inner hole diameter of the first annular sealing part 311 is greater than or equal to the diameter of the first corner hole 111. At least one first groove 3121 communicating the inside and the outside is provided on the first annular mating part 312; the second mating part 320 includes a second annular sealing part 321 for mating and arranging in the second sealing and mating area 211, a second annular mating part 322 arranged on the outer periphery of the second annular sealing part 321 and extending towards the first mating part 310, and a second connecting part 323 connecting between the second annular sealing part 321 and the second annular mating part 322. The inner hole diameter of the second annular sealing part 321 is greater than or equal to the diameter of the first corner hole 111. The second annular mating part 322 is butt-connected with the first annular mating part 312 and is correspondingly provided with a second groove 3221 that cooperates with the first groove 3121 to form a communication channel C. Preferably, the flow cross-section of the communication channel C formed by the cooperation of the first groove 3121 and the second groove 3221 gradually increases along the flow direction.

[0027] In this embodiment, the dispenser body 300 is made of stainless steel material, that is, both the first mating part 310 and the second mating part 320 are made of stainless steel material. The first annular mating part 312 of the first mating part 310 and the second annular mating part 322 of the second mating part 320 are connected by brazing. The first annular sealing part 311 of the first mating part 310 and the first sealing mating area 112 of the first heat exchange plate 100 are connected by brazing. The second annular sealing part 321 of the second mating part 320 and the second sealing mating area 211 of the second heat exchange plate 200 are connected by brazing.

[0028] In this embodiment, the dispenser body 300 has a symmetrical structure, that is, it is formed by brazing the exactly same first mating part 310 and the second mating part 320 together, so that the pressure-bearing capacity of the dispenser body 300 can be effectively improved.

[0029] In some other specific embodiments, the dispenser body 300 can also be an integrally formed cylindrical structure, including a cylinder main body 330, and a first sealing lip 340 and a second sealing lip 350 respectively arranged at both ends of the cylinder main body 330 and extending inwards or outwards along the ports. At least one through hole 331 is arranged on the cylinder main body 330; preferably, the dispenser body 300 has a symmetrical structure, and sealing lips extending outwards are circumferentially arranged at both ends of the cylinder main body 330 (such as Figure 5 ); or, sealing lips extending inwards are circumferentially arranged at both ends of the cylinder main body 330 (such as Figure 6 ).

[0030] Compared with the prior art, the structure of the present utility model is simple and reasonable. The orifice distributor is an independently manufactured component. The plate heat exchanger can flexibly use the orifice distributor as an evaporator according to specific working conditions, or not use the orifice distributor as a condenser.

[0031] The above only discloses the embodiments of the present utility model. However, the present utility model is not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A corner hole distributor, characterized in that, It includes a distributor body having an axially through-channel, and the distributor body is used to be installed in the refrigerant side space of a plate heat exchanger to engage and communicate with the first corner holes arranged oppositely on the heat exchange plates on both sides to form an inlet channel. At least one communication channel communicating the inlet channel and the refrigerant side space is further constructed and arranged on the distributor body.

2. The angular hole distributor according to claim 1, wherein The distributor body is an integrally formed cylindrical structure, including a cylinder body, a first sealing lip and a second sealing lip respectively arranged at both port ends of the cylinder body and extending inwards or outwards along the ports, and at least one through hole is arranged on the cylinder body.

3. The angular hole distributor according to claim 1, characterized in that, The distributor body is formed by mating a first mating part and a second mating part; The first mating part includes a first annular sealing part for engaging and arranging on one side of the heat exchange plate, a first annular mating part arranged on the outer periphery of the first annular sealing part and extending towards the second mating part, and a first connecting part connected between the first annular sealing part and the first annular mating part. At least one first groove communicating the inner and outer sides is arranged on the first annular mating part; The second mating part includes a second annular sealing part for engaging and arranging on the other side of the heat exchange plate, a second annular mating part arranged on the outer periphery of the second annular sealing part and extending towards the first mating part, and a second connecting part connected between the second annular sealing part and the second annular mating part. The second annular mating part is butt-connected with the first annular mating part, and a second groove corresponding to and cooperating with the first groove to form a communication channel is arranged thereon.

4. The angular orifice distributor according to claim 1, characterized in that, The distributor body is a symmetric structure.

5. The angular orifice distributor according to claim 1, characterized in that, The distributor body is made of stainless steel material.

6. A plate heat exchanger, characterized in that, It is used in supporting with the corner hole distributor described in any one of the above claims 1-5, and includes at least one group of first heat exchange plates and second heat exchange plates stacked up and down to form a refrigerant side space. First corner holes which are arranged oppositely and communicated with the refrigerant side space are arranged on both the first heat exchange plates and the second heat exchange plates; A convex platform structure bulging upwards is arranged on the first heat exchange plate corresponding to the first corner hole, and a first sealing and mating area for mating with the upper end part of the distributor body is arranged on the lower surface of the convex platform corresponding to the outer periphery of the first corner hole; A sunk platform structure sunken downwards is arranged on the second heat exchange plate corresponding to the first corner hole, and a second sealing and mating area for mating with the lower end part of the distributor body is arranged on the upper surface of the sunk platform corresponding to the outer periphery of the first corner hole.

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