A dew point indirect evaporation core and a device for producing high-temperature cold water

Abstract

The present invention discloses a dew point indirect evaporation core and a device for producing high-temperature cold water, which relates to the field of heating, ventilation and air conditioning technology. The core comprises a core, which is formed by alternating and stacking a plurality of air inlet layers and a plurality of air outlet layers; the cross section of the core is triangular, and the three sides of the core are a connecting surface, an air inlet surface and an air outlet surface respectively; a water receiving tray is provided on the outer side of the connecting surface, and a water collecting trough is provided on the lower edge of the water receiving tray; the water receiving tray and the connecting surface are enclosed to form a connecting space; the air inlet layer is provided with a plurality of air inlet ducts on the air inlet surface, and each air inlet duct extends to connect to the connecting space; the air outlet layer is provided with a plurality of air outlet ducts on the air outlet surface, and each air outlet duct extends to connect to the connecting space. The core of the present invention adopts a triangular structure, so that fresh air enters the dry channel of the core from the horizontal side and turns at the hypotenuse side of the triangle to enter the wet channel, so that the indirect evaporation heat exchange core can be built into the equipment instead of being placed outside, thereby reducing the area occupied by the equipment body.

Description

Technical Field

[0001] The present invention relates to the technical field of heating, ventilation and air conditioning, and in particular to a dew point indirect evaporation core and a device for producing high-temperature cold water. Background Art

[0002] Currently, most indirect evaporative chillers on the market use air-to-air heat exchangers and heat exchange coils. These are located on both sides of the unit, increasing the unit's footprint. Furthermore, the air-to-air heat exchangers and heat exchange coils restrict air velocity, requiring higher air intakes and larger spacing between units, further increasing the unit's footprint. However, installation space is limited on most project sites, and excessively large footprints compromise performance and installation space. Summary of the Invention

[0003] In view of the above problems, the purpose of the present invention is to provide a dew point indirect evaporation core and a device for producing high-temperature cold water. The present invention adopts the following technical solutions:

[0004] The present invention provides a dew-point indirect evaporation core, comprising a core, wherein the core is formed by alternately stacking and connecting a plurality of air inlet layers and a plurality of air outlet layers; the cross-section of the core is triangular, and the three side surfaces of the core are respectively a connecting surface, an air inlet surface, and an air outlet surface; a water receiving pan is provided on the outer side of the connecting surface, a water collecting trough is provided on the lower edge of the water receiving pan, and a drain outlet is provided at the bottom of the water collecting trough; the water receiving pan and the connecting surface enclose a connecting space; the air inlet layer is provided with a plurality of air inlet ducts on the air inlet surface, each of the air inlet ducts extending to connect to the connecting space; the air outlet layer is provided with a plurality of air outlet ducts on the air outlet surface, each of the air outlet ducts extending to connect to the connecting space;

[0005] During operation, fresh air enters from the air inlet duct and then turns to enter the air outlet duct at the connecting space.

[0006] Preferably, the air outlet duct includes a plurality of air outlet holes, each of the air outlet holes is close to the air outlet surface, and each of the air outlet holes is connected to an air outlet cavity below, and the air outlet cavity is connected to the connecting space.

[0007] Preferably, the air inlet surface and the air outlet surface are perpendicular to each other; the air inlet duct and the air outlet are perpendicular to each other.

[0008] Preferably, the air inlet layer is formed by cutting and processing a polymer heat exchange plate, and the microchannels on the polymer heat exchange plate serve as the air inlet duct;

[0009] The air outlet layer is formed by splicing two polymer heat exchange strips. The microchannels on the polymer heat exchange strips are the air outlet holes. The area between the two polymer heat exchange strips is the air outlet cavity. A water-absorbing film is attached to the cavity wall of the air outlet cavity.

[0010] Preferably, a sealing colloid is provided on a side of the air outlet layer close to the air inlet surface, and an outer side surface of the sealing colloid is flush with the air inlet surface.

[0011] The present invention also provides a device for producing high-temperature cold water, comprising the above-mentioned dew point indirect evaporation core; and also comprising fillers, a water distributor and a fan, wherein the fillers, water distributor and fan are arranged in sequence from bottom to top.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] The present invention provides a dew point indirect evaporation core. The evaporation core adopts a triangular structure, so that fresh air enters the dry channel of the core from the horizontal side and turns at the hypotenuse side of the triangle to enter the wet channel, so that the indirect evaporation heat exchange core can be built into the equipment instead of being placed outside, thereby reducing the floor space occupied by the equipment body; at the same time, the air inlet side of the indirect evaporation core does not directly take air from the air outlet of the equipment, so the position of the air inlet of the equipment does not need to consider the wind speed of the core, and the height of the air outlet can be reduced, thereby reducing the floor space occupied by the equipment.

[0014] The present invention also provides a device for producing high-temperature cold water. The overall structure of the device is reasonably arranged, and the device body occupies a small area. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 Schematic diagram of the structure of the dew point indirect evaporation core in an embodiment of the present invention;

[0017] Figure 2 Schematic diagram of the internal structure of the core in an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of a high-temperature cold water production device in an embodiment of the present invention.

[0019] Explanation of the accompanying reference numerals: 1. core body; 101. air inlet layer; 102. air outlet layer; 103. sealing colloid; 2. connecting surface; 3. air inlet surface; 301. air inlet duct; 4. air outlet surface; 401. air outlet duct; 401-1. air outlet hole; 401-2. air outlet cavity; 5. water collecting tray; 501. connecting space; 502. water collecting trough; 6. filler; 7. water distributor; 8. fan. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0022] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] like Figure 1 As shown, this embodiment discloses a dew point indirect evaporation core, including a core 1, which is composed of multiple air inlet layers 101 and multiple air outlet layers 102 alternately stacked and connected with each other. The cross-section of the core 1 is triangular, and the three side surfaces of the core 1 are respectively a connecting surface 2, an air inlet surface 3 and an air outlet surface 4; a water receiving tray 5 is provided on the outer side of the connecting surface 2, and the water receiving tray 5 and the connecting surface 2 enclose a connecting space 501.

[0024] The air inlet layer 101 has a plurality of air inlet ducts 301 on the air inlet surface 3 , and each air inlet duct 301 extends to connect to the connecting space 501 ; the air outlet layer 102 has a plurality of air outlet ducts 401 on the air outlet surface 4 , and each air outlet duct 401 extends to connect to the connecting space 501 .

[0025] On the outlet side of the dew-point indirect evaporation core, air flows upward along the outlet duct 401. Simultaneously, spray water flows into the outlet duct 401 from above. Therefore, the outlet duct 401 is also called the wet channel. Water flowing into the outlet duct 401 is collected in the water collection tray 5. In this embodiment, a water collection trough 502 is provided at the bottom edge of the water collection tray 5. Water flowing into the outlet duct 401 is collected in the water collection tray 5 before entering the water collection trough 502. A drain outlet is provided at the bottom of the water collection trough 502. On the inlet side of the dew-point indirect evaporation core, fresh air enters through the air inlet duct 301, also called the dry channel. After entering the air inlet duct 301, the fresh air turns at the connecting space 501 and enters the outlet duct 401.

[0026] like Figure 2 As shown, the air outlet duct 401 in this embodiment includes a plurality of air outlet holes 401-1, each of which is close to the air outlet surface 4 and communicates with the air outlet cavity 401-2 below, which in turn communicates with the communication space 501. In this embodiment, the air inlet surface 3 and the air outlet surface 4 are perpendicular to each other. The air inlet duct 301 and the air outlet holes 401-1 are perpendicular to each other.

[0027] like Figure 1 and 2 As shown, the air inlet layer 101 in this embodiment is cut and processed by a polymer heat exchange plate, and the microchannel on the polymer heat exchange plate is the air inlet duct 301; at the same time, the air outlet layer 102 is spliced ​​by two polymer heat exchange strips, and the microchannel on the polymer heat exchange strip is the air outlet hole 401-1, and the area between the two polymer heat exchange strips is the air outlet cavity 401-2. A water-absorbing film is attached to the cavity wall of the air outlet cavity 401-2, and the water-absorbing film can be specifically arranged on the outer wall of the polymer heat exchange plate.

[0028] In order to prevent fresh air from entering the air outlet duct 401 from the air inlet surface 3 , a sealing colloid 103 is provided on the side of the air outlet layer 102 close to the air inlet surface 3 , and the sealing colloid 103 is flush with the air inlet surface 3 .

[0029] The sealing colloid 103 is filled in the glue groove composed of the polymer heat exchange plate and the polymer heat exchange strip by overflow glue spraying, so that the sealing colloid 103 is in contact with the air inlet surface 3, thereby ensuring that the air inlet duct 301 is isolated from the air outlet duct 401, that is, the dry channel and the wet channel are isolated.

[0030] Based on the above disclosed dew point indirect evaporation core, such as Figure 3 As shown, this embodiment also discloses a device for producing high-temperature cold water. In addition to the structure of the dew point indirect evaporation core, the device also includes a filler 6, a water distributor 7, and a fan 8. The filler 6, the water distributor 7, and the fan 8 are arranged in order from bottom to top. The filler 6 can be made of PVC filler.

[0031] The operating principle of the high-temperature cold water production device is as follows: fresh air enters the air inlet duct 301 and turns at the connecting space 501 to enter the air outlet duct 401. In the air inlet duct 301, the cold air from the wet channel removes some of its sensible heat, and the fresh air isothermal cooling, lowering the dry-bulb temperature of the fresh air. After turning at the connecting space 501 and entering the air outlet duct 401, the air flows from bottom to top in the duct, while the water flows from top to bottom. This allows the cold air in the outlet duct 401 to fully remove the heat from the water and the sensible heat transferred from the fresh air (dry channel) through direct evaporation. The air is then indirectly evaporated and discharged through the air outlet of the core. The discharged air passes through the packing and removes heat from the water, thereby lowering the water temperature and achieving the purpose of producing high-temperature cold water. It should be noted that when the outlet cold water temperature is above a certain set value, it is considered high-temperature cold water. In this embodiment, the temperature of the produced high-temperature cold water is 12°C or higher.

[0032] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A dew point indirect evaporation core, characterized by: The core (1) is formed by alternately stacking and connecting a plurality of air inlet layers (101) and a plurality of air outlet layers (102); The cross section of the core (1) is triangular, and the three side surfaces of the core (1) are respectively a connecting surface (2), an air inlet surface (3) and an air outlet surface (4); A water receiving tray (5) is provided on the outside of the communication surface (2), a water collecting trough (502) is provided on the lower edge of the water receiving tray (5), and a drainage outlet is provided at the bottom of the water collecting trough (502); the water receiving tray (5) and the communication surface (2) enclose a communication space (501); The air inlet layer (101) is provided with a plurality of air inlet ducts (301) on the air inlet surface (3), and each of the air inlet ducts (301) extends and communicates with the communication space (501); The air outlet layer (102) is provided with a plurality of air outlet ducts (401) on the air outlet surface (4), and each of the air outlet ducts (401) extends and communicates with the communication space (501); During operation, fresh air enters the air inlet duct (301) and then turns to enter the air outlet duct (401) at the connecting space (501).

2. The dew point indirect evaporation core according to claim 1, characterized in that: The air outlet duct (401) includes a plurality of air outlet holes (401-1), each of the air outlet holes (401-1) is close to the air outlet surface (4), and each of the air outlet holes (401-1) is connected to the air outlet cavity (401-2) below, and the air outlet cavity (401-2) is connected to the connecting space (501).

3. The dew point indirect evaporation core according to claim 2, characterized in that: The air inlet surface (3) and the air outlet surface (4) are perpendicular to each other; the air inlet duct (301) and the air outlet hole (401-1) are perpendicular to each other.

4. The dew point indirect evaporation core according to claim 2, characterized in that: The air inlet layer (101) is formed by cutting and processing a polymer heat exchange plate, and the microchannel on the polymer heat exchange plate serves as the air inlet duct (301); The air outlet layer (102) is formed by splicing two polymer heat exchange strips, the microchannels on the polymer heat exchange strips are the air outlet holes (401-1), the area between the two polymer heat exchange strips is the air outlet cavity (401-2), and a water-absorbing film is attached to the cavity wall of the air outlet cavity (401-2).

5. The dew point indirect evaporation core according to claim 4, characterized in that: The air outlet layer (102) is provided with a sealing colloid (103) on a side close to the air inlet surface (3), and the outer side surface of the sealing colloid (103) is flush with the air inlet surface (3).

6. A device for producing high-temperature cold water, comprising the dew-point indirect evaporation core according to any one of claims 1 to 5; characterized in that: It also includes a filler (6), a water distributor (7) and a fan (8), wherein the filler (6), the water distributor (7) and the fan (8) are arranged in sequence from bottom to top.

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