CN111425942A

CN111425942A - Air conditioning unit

Info

Publication number: CN111425942A
Application number: CN202010351082.XA
Authority: CN
Inventors: 田士博; 吴凡; 林海佳; 汪建; 雷二桥
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-07-17

Abstract

The invention provides an air conditioning unit which comprises a heat exchange module, wherein the heat exchange module comprises a surface air cooler and a first fan, an area formed by the surface air cooler in a surrounding mode is an air channel, and the first fan is positioned in the air channel; the heat exchange modules are arranged in a plurality of rows, the air channels of the two adjacent heat exchange modules are communicated with each other, and a plurality of first fans in the heat exchange modules all supply air along the same direction. By adopting the air conditioning unit, air can be supplied by the plurality of fans at different positions in the air supply direction, and the difference between the different positions of the surface air coolers and the fans is smaller, so that the difference between the air speeds of the different positions of the different surface air coolers in the air conditioning unit is small, and the uniformity of air flow in the air conditioning unit is improved. This scheme only compares in certain position setting fan with air conditioning unit, and the different positions of surface cooler can not appear and the distance difference of fan is very big and cause the condition that the wind speed difference is very big, is favorable to giving play to the best heat transfer performance of complete machine, improves the efficiency.

Description

Air conditioning unit

Technical Field

The invention relates to the technical field of air conditioning units, in particular to an air conditioning unit.

Background

The design of the air flow organization in the air conditioning unit directly influences the resistance of the whole machine, and further determines the capacity and energy consumption of the whole machine. Through the optimization of airflow organization, a proper air duct system is designed, the internal resistance of the unit is reduced, the air quantity is improved, and great help is provided for the capacity and the structural compactness of the whole machine.

In order to improve the heat exchange capacity of the air conditioning unit, a surface cooler with a large heat exchange area is usually designed, and a fan drives air to flow and exchange heat with the surface cooler. The efficiency of the surface air cooler can be better exerted under the condition that the wind speeds of different positions of the surface air cooler are more uniform, but in the practical application, the return air speed difference of different positions of the surface air cooler is larger. Specifically, the air speed at a position close to the fan in the air conditioning unit is high, and the air speed at a position far away from the fan is low, so that the optimal heat exchange performance is difficult to exert. Therefore, the problem of how to ensure the uniformity of the air flow is faced in the practical use of the air conditioning unit.

Disclosure of Invention

The invention provides an air conditioning unit, which aims to improve the uniformity of airflow in the air conditioning unit.

In order to achieve the above object, the present invention provides an air conditioning unit including: the heat exchange module comprises a surface cooler and a first fan, an area formed by the surface cooler in a surrounding mode is an air duct, and the first fan is located in the air duct; the heat exchange modules are arranged in a plurality of rows, the air channels of every two adjacent heat exchange modules are communicated with each other, and a plurality of first fans in the heat exchange modules all supply air in the same direction.

Further, in a plurality of heat exchange modules, two adjacent surface coolers abut against each other.

Furthermore, the air conditioning unit further comprises a second fan, the second fan is located on one side of the output air of the plurality of heat exchange modules, and the air supply direction of the second fan is the same as that of the first fan.

Further, the air conditioning unit further includes: the frame construction, frame construction's circumference is the air inlet side, and is a plurality of heat exchange module arranges the setting and is in the frame construction, the wind channel is followed frame construction's length direction sets up, the second fan sets up frame construction's one end.

Further, the air conditioning unit further includes: the top cover is connected with the frame structure to block one end of the frame structure, which deviates from the second fan.

Further, the second fan is located the outside of frame construction, the second fan with a plurality of have between the heat exchange module and predetermine the cavity, air conditioning unit still includes: and the side plates are arranged on the frame structure in a surrounding manner, and are blocked in the circumferential direction of the preset cavity.

Further, a plurality of heat exchange module arranges the setting along vertical direction, air conditioning unit still includes: the water pan is located a plurality of heat exchange module's below to receive follows the comdenstion water that the surface cooler drips, have on the water pan and dodge the mouth, dodge the mouth with the wind channel sets up relatively, the second fan is located the below of water pan.

Further, the first fan is an axial flow fan, and the second fan is a centrifugal fan.

Further, the surface cooler is an annular structure with an opening in the circumferential direction, and the heat exchange module further comprises: and the baffle blocks the opening of the surface cooler in the circumferential direction.

Further, the heat exchange module further comprises: the surface cooler with first fan all sets up on the mount.

The technical scheme of the invention is applied to provide an air conditioning unit which comprises a heat exchange module, wherein the heat exchange module comprises a surface air cooler and a first fan, an area formed by the surface air cooler in a surrounding mode is an air channel, and the first fan is positioned in the air channel; the heat exchange modules are arranged in a plurality of rows, the air channels of the two adjacent heat exchange modules are communicated with each other, and a plurality of first fans in the heat exchange modules all supply air along the same direction. By adopting the air conditioning unit, the plurality of heat exchange modules are arranged, and the first fan is arranged in the surface air cooler in each heat exchange module, so that air can be supplied by the plurality of fans at different positions in the air supply direction, and the difference between the different positions of the surface air cooler and the fans is small, so that the difference between the air speeds of different positions of different surface air coolers in the air conditioning unit is small, and the uniformity of air flow in the air conditioning unit is improved. This scheme only compares in certain position setting fan with air conditioning unit, and the different positions of surface cooler can not appear and the distance difference of fan is very big and cause the condition that the wind speed difference is very big, is favorable to giving play to the best heat transfer performance of complete machine, improves the efficiency.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of an air conditioning unit provided by an embodiment of the invention;

FIG. 2 shows an exploded view of the air conditioning assembly of FIG. 1;

FIG. 3 shows a schematic view of the heat exchange module of FIG. 1;

fig. 4 shows an exploded view of the heat exchange module of fig. 3.

Wherein the figures include the following reference numerals:

10. a heat exchange module; 11. a surface cooler; 12. a first fan; 13. a baffle plate; 14. a fixed mount; 15. a side plate; 20. a second fan; 30. a frame structure; 41. a top cover; 42. a side plate; 50. a water pan; 60. an electronic control box.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in the accompanying drawings, an embodiment of the present invention provides an air conditioning unit including: the heat exchange module 10, the heat exchange module 10 includes a surface cooler 11 and a first fan 12, the area formed by the surface cooler 11 is an air duct, the first fan 12 is located in the air duct; the heat exchange modules 10 are multiple, the heat exchange modules 10 are arranged, the air channels of two adjacent heat exchange modules 10 are communicated with each other, and the first fans 12 in the heat exchange modules 10 all supply air along the same direction.

The technical scheme of the invention is applied to provide an air conditioning unit, the air conditioning unit comprises a heat exchange module 10, the heat exchange module 10 comprises a surface air cooler 11 and a first fan 12, an area formed by the surface air cooler 11 in a surrounding mode is an air channel, and the first fan 12 is located in the air channel; the heat exchange modules 10 are multiple, the heat exchange modules 10 are arranged, the air channels of two adjacent heat exchange modules 10 are communicated with each other, and the first fans 12 in the heat exchange modules 10 all supply air along the same direction. By adopting the air conditioning unit, the plurality of heat exchange modules 10 are arranged, and the first fan 12 is arranged in the surface air cooler 11 in each heat exchange module 10, so that air can be supplied by the plurality of fans at different positions in the air supply direction, and the difference between the different positions of the surface air cooler 11 and the fans is small, so that the difference between the air speeds of different positions of the different surface air coolers 11 in the air conditioning unit is small, and the uniformity of air flow in the air conditioning unit is improved. This scheme only compares in certain position setting fan with air conditioning unit, and the different positions of surface cooler 11 can not appear and the distance difference of fan is very big and cause the condition that the wind speed difference is very big, is favorable to giving play to the best heat transfer performance of complete machine, improves the efficiency. Moreover, the modular structure is adopted, the heat exchange modules 10 with proper quantity can be selected for assembly according to the power and heat exchange requirements, and the assembly is flexible and convenient.

In the present embodiment, in the plurality of heat exchange modules 10, two adjacent surface coolers 11 abut against each other. This can avoid having the interval between adjacent surface cooler 11 to avoid the air to get into the wind channel from the interval and not through the heat transfer of surface cooler 11.

Optionally, the lower portion of the duct has an air outlet and the first fan 12 is located in a lower region of the duct, which improves the return air effect. Through the operation of the first fan 12, the air outside the heat exchange module 10 enters the air duct through the periphery of the surface air cooler 11 and exchanges heat with the surface air cooler 11, and then is blown out from the air outlet.

In another embodiment, not shown, the surface air coolers 11 of the heat exchange modules 10 are of an integrated structure, that is, the air conditioning unit includes an integrated total surface air cooler, the total surface air cooler is divided into multiple sections along its length direction, and each section forms one surface air cooler 11 of one heat exchange module 10. This facilitates the manufacture of the surface cooler 11.

In this embodiment, the air conditioning unit further includes a second fan 20, the second fan 20 is located on one side of the output air of the plurality of heat exchange modules 10, and the air supply direction of the second fan 20 is the same as that of the first fan 12. The second fan 20 can further provide assistance for air flow, so that sufficient air speed and air quantity are ensured, and the heat exchange effect is improved.

Optionally, the rotation speeds of the first fans 12 may be individually adjusted to adjust the rotation speeds at different positions, so as to achieve uniform wind speeds at different positions as much as possible. The rotational speed of the second fan 20 is adjustably set.

In this embodiment, the first fan 12 is an axial fan, and the second fan 20 is a centrifugal fan. Therefore, the ventilation effect is good, and the structure is compact. Of course, other types of fans may be provided as desired.

In this embodiment, the air conditioning unit further includes: frame construction 30, frame construction 30's circumference is the air inlet side, and a plurality of heat exchange module 10 are arranged and are set up in frame construction 30, and the wind channel sets up along frame construction 30's length direction, and second fan 20 sets up the one end at frame construction 30. The arrangement and installation of a plurality of heat exchange modules 10 and the like is facilitated by the frame structure 30. The use of the frame structure 30 reduces wind resistance, and provides a light weight and high strength.

In this embodiment, the air conditioning unit further includes: and the top cover 41, wherein the top cover 41 is connected with the frame structure 30 to seal one end of the frame structure 30, which is far away from the second fan 20. Through the arrangement, the air can be prevented from entering the air channel from the end part of the frame structure 30, and the heat exchange effect cannot be achieved.

In this embodiment, the second fan 20 is located outside the frame structure 30, a preset cavity is formed between the second fan 20 and the plurality of heat exchange modules 10, and the air conditioning unit further includes: a plurality of side plates 42, the plurality of side plates 42 are arranged on the frame structure 30 in a surrounding manner, and the plurality of side plates 42 block the periphery of the preset cavity. The side plates 42 can prevent the air from entering the preset cavity from the circumferential direction of the preset cavity, and only enter the preset cavity from the air duct of the heat exchange module 10.

In this embodiment, a plurality of heat exchange modules 10 are arranged along vertical direction, and the air conditioning unit further includes: the water receiving tray 50 is located below the plurality of heat exchange modules 10 to receive condensed water dripping from the surface air cooler 11, an avoiding opening is formed in the water receiving tray 50 and is opposite to the air duct, and the second fan 20 is located below the water receiving tray 50. The condensed water dropped from the surface cooler 11 can be collected intensively by the water receiving tray 50. Moreover, by providing the avoidance port, the water receiving tray 50 can be prevented from obstructing the flow of the gas.

In this embodiment, the air conditioning unit further includes an electronic control box 60, and the electronic control box 60 is disposed on the frame structure 30. This facilitates the wiring and the control of the air conditioning unit.

In this embodiment, the surface cooler 11 is an annular structure having an opening in the circumferential direction, and the heat exchange module 10 further includes: and a baffle 13, wherein the baffle 13 seals the opening of the surface cooler 11 in the circumferential direction. Set up surface cooler 11 to annular structure, can increase the area of contact with the air, improve the heat transfer effect to can improve air conditioning unit's compactness. When the surface cooler 11 is machined, it is difficult to form a closed structure in the circumferential direction for process reasons, and machining is facilitated by providing the opening. Meanwhile, in order to prevent the air from entering from the opening and not achieving the heat exchange effect, the baffle 13 is arranged to block the opening. Of course, if the process is feasible, the surface cooler 11 may be provided in an annular structure without openings in the circumferential direction to further increase the heat exchange area. The surface air cooler is similar to the G-type structure. The surface air cooler can be arranged in other structures according to requirements, such as U-shaped structures, V-shaped structures and the like.

In this embodiment, the heat exchange module 10 further includes: the fixed frame 14, the surface cooler 11 and the first fan 12 are all arranged on the fixed frame 14. The assembly of the surface cooler 11, the first fan 12 and the like is facilitated by the fixing frame 14.

Optionally, the fixing frame 14 includes a bottom plate and a vertical plate disposed on the bottom plate, the vertical plate is connected to the surface air cooler 11, the bottom plate has an opening, and the first fan 12 is disposed on the bottom plate. Further, the vertical plate is provided with a flanging, and the flanging of the vertical plate is matched with the end face of the surface cooler 11, so that the connection reliability is improved.

Specifically, the surface cooler 11 includes a plurality of fins arranged in an annular arrangement and a plurality of annular heat exchange tubes each of which passes through the plurality of fins. The surface cooler 11 further includes a side plate 15, and the side plate 15 is provided at an end of the plurality of heat exchange tubes to fix the heat exchange tubes.

Specifically, the air conditioning unit is a machine room air conditioning unit, and the air conditioning unit can also be understood as an air conditioner. By adopting the air conditioning unit, the plurality of heat exchange modules 10 are arranged, and the first fan 12 is arranged in the surface air cooler 11 in each heat exchange module 10, so that air can be supplied by the plurality of fans at different positions in the air supply direction, and the difference between the different positions of the surface air cooler 11 and the fans is small, so that the difference between the air speeds of different positions of the different surface air coolers 11 in the air conditioning unit is small, and the uniformity of air flow in the air conditioning unit is improved. This scheme only compares in certain position setting fan with air conditioning unit, and the different positions of surface cooler 11 can not appear and the distance difference of fan is very big and cause the condition that the wind speed difference is very big, is favorable to giving play to the best heat transfer performance of complete machine, improves the efficiency. Moreover, the modular structure is adopted, the heat exchange modules 10 with proper quantity can be selected for assembly according to the power and heat exchange requirements, and the assembly is flexible and convenient. Moreover, the arrangement structure is compact, and the volume and the occupied space can be reduced.

Due to the adoption of the modular air duct system with the multistage fans connected in series, the return air uniformity of the heat exchanger (namely the surface cooler) can be greatly improved, the regional self-regulation of the return air quantity of the heat exchanger is realized, and the installation of the heat exchanger and the matching of the cooling capacity are greatly simplified due to the modular design.

The air conditioning unit provided by the invention is in modular combination, can be combined according to different capacity requirements, is assembled for use, has strong interchangeability and is easy to maintain, and is suitable for different air conditioning shells. Because each module is specially provided with an axial flow fan, the axial flow fan is only responsible for air flow organization regulation and air volume and heat exchange control in the module, the self-regulation function is achieved, and the module is not interfered or is less interfered by other modules. After the modules are assembled, the air flow forms a series structure.

The air conditioning unit is applied to separation and modularization treatment, each module is used for adjusting airflow by an axial flow fan to realize regional treatment of the airflow, and the airflow is extracted by a centrifugal fan after being connected in series by a plurality of modules. The improved unit realizes uniform and controllable pressure distribution, and the longitudinal head-on wind speed of the surface cooler is relatively uniform, thereby being beneficial to realizing the limit performance of the surface cooler.

Among the above-mentioned air conditioning unit, surface cooler simple to operate according to required cold volume difference, can increase and decrease the module at will, and the maintenance is changed simply, and interchangeability is strong. For example, the capacity of one module is 20KW, the double-stage combination is a 40KW unit, and the three-stage combination is a 60KW unit. Each module is adjusted air current and amount of wind by axial fan, and the not enough amount of wind is remedied by centrifugal fan, just because this, axial fan has complemented the required amount of wind of unit, can very big reduction centrifugal fan power, and then improve the complete machine efficiency, extension fan life improves the unit reliability.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An air conditioning assembly, comprising:

the heat exchange module (10) comprises a surface air cooler (11) and a first fan (12), an area formed by the surface air cooler (11) in a surrounding mode is an air duct, and the first fan (12) is located in the air duct;

the heat exchange modules (10) are multiple, the heat exchange modules (10) are arranged, the air channels of the heat exchange modules (10) are communicated with each other, and the heat exchange modules (10) are provided with a plurality of first fans (12) which supply air in the same direction.

2. Air conditioning assembly according to claim 1, characterized in that in a plurality of heat exchange modules (10), two adjacent surface coolers (11) abut against each other.

3. The air conditioning assembly according to claim 1, further comprising a second fan (20), wherein the second fan (20) is located on one side of the output air of the plurality of heat exchange modules (10), and the second fan (20) blows air in the same direction as the first fan (12).

4. The air conditioning assembly as set forth in claim 3, further comprising:

frame construction (30), the circumference of frame construction (30) is the air inlet side, and is a plurality of heat exchange module (10) are arranged and are set up in frame construction (30), the wind channel is followed the length direction setting of frame construction (30), second fan (20) set up the one end of frame construction (30).

5. The air conditioning assembly as set forth in claim 4, further comprising:

the top cover (41), the top cover (41) with frame structure (30) are connected to block the one end that deviates from second fan (20) of frame structure (30).

6. Air conditioning assembly according to claim 4, wherein said second fan (20) is located outside said frame structure (30), said second fan (20) having a predetermined cavity with said plurality of heat exchange modules (10), said air conditioning assembly further comprising:

the side plates (42) are arranged on the frame structure (30) in a surrounding mode, and the side plates (42) block the circumferential direction of the preset cavity.

7. Air conditioning assembly according to claim 3, wherein a plurality of said heat exchange modules (10) are arranged in a vertical direction, said air conditioning assembly further comprising:

water collector (50), water collector (50) are located a plurality ofly the below of heat exchange module (10) is in order to receive the follow the comdenstion water that surface cooler (11) dropped, have on water collector (50) and dodge the mouth, dodge the mouth with the wind channel sets up relatively, second fan (20) are located the below of water collector (50).

8. Air conditioning assembly according to claim 3, wherein the first fan (12) is an axial fan and the second fan (20) is a centrifugal fan.

9. Air conditioning assembly according to claim 1, wherein the surface cooler (11) is an annular structure having an opening in the circumferential direction, and the heat exchange module (10) further comprises:

and the baffle (13) seals the opening of the surface cooler (11) in the circumferential direction.

10. Air conditioning assembly according to claim 1, characterized in that said heat exchange module (10) further comprises:

the surface air cooler (11) and the first fan (12) are arranged on the fixing frame (14).