Integrated air cooling unit and air cooling system formed by same

Abstract

The utility model belongs to the technical field of air cooling, and provides an integrated air cooling unit and an air cooling system.The air cooling unit comprises a first shell and a second shell which are assembled into a whole, a compressor and a condenser are arranged in the first shell, a plurality of outer circulating fans are arranged at the upper end of the first shell, and a plurality of air outlets are formed in the second shell. An evaporator is arranged in the second shell, a plurality of internal circulation fans used for guiding hot air are arranged at the upper end of the second shell, and the side portion of the second shell is in an opening shape and forms a cold air channel. According to the utility model, the integrated air cooling unit is designed as a complete machine room, an indoor unit and an outdoor unit are not divided, the installation is simple and convenient, the indoor space is not occupied, all air discharged by the frequency converter can be cooled, and the heat dissipation and cooling effects are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of air cooling, and specifically relates to an integrated air cooling unit and an air cooling system constituted by the integrated air cooling unit. Background Art

[0002] At present, the heat dissipation of inverters is generally carried out by ventilation, ordinary household (air-cooled) air conditioning, and industrial (air-cooled) air conditioning, and most of them are manually operated. With the development of electrical technology, the heat generation of new high-voltage electrical equipment and other electrical equipment is increasing day by day, and the temperature and humidity environment requirements for equipment operation are getting higher and higher. Traditional cooling methods have gradually failed to meet the environmental control needs of high-power heating equipment.

[0003] In the prior art, ordinary household (air-cooled) air conditioners and industrial (air-cooled) air conditioners are split-type air conditioners. The indoor unit needs to occupy indoor space, and it is necessary to consider the installation of the outdoor unit, lay indoor and outdoor refrigerant pipelines and cables, etc., which causes inconvenience in installation and maintenance. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated air-cooling unit to solve the technical problems existing in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An integrated air-cooling unit includes a first shell and a second shell assembled as one body, a compressor and a condenser are arranged in the first shell, a plurality of external circulation fans are arranged at the upper end of the first shell, an evaporator is arranged in the second shell, a plurality of internal circulation fans for guiding hot air are arranged at the upper end of the second shell, and the side of the second shell is open and constitutes a cold air channel.

[0007] Furthermore, an interface portion for connecting a pipeline is arranged on the outside of the upper end of the second shell, and the internal circulation fan is placed in the interface portion.

[0008] Furthermore, an electric control box is arranged on the side of the first shell.

[0009] Furthermore, there are more than two external circulation fans, and the number of the compressors and condensers matches the number of the external circulation fans.

[0010] Furthermore, there are more than two internal circulation fans, and the number of the evaporators matches the number of the internal circulation fans.

[0011] In order to achieve the above-mentioned objectives, the utility model also provides an air cooling system, including the integrated air cooling unit as described above installed outdoors, a main air duct for collecting hot air, a plurality of induced air ducts connected to the main air duct at one end and connected to the internal circulation fan of the integrated air cooling unit at the other end, and the cold air channel of the integrated air cooling unit is connected to the interior of the room.

[0012] Furthermore, an outdoor exhaust duct is provided on the side of the induced air duct, near the connection position between the induced air duct and the integrated air-cooling unit, and the outdoor exhaust duct is communicated with the induced air duct.

[0013] In one embodiment, an electric air valve is provided at the outlet end of the outdoor exhaust duct.

[0014] In one embodiment, a fresh air valve is provided at the outlet end of the outdoor exhaust duct.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The utility model adopts an integrated air cooling unit for the whole machine room design, without distinguishing between indoor and outdoor units, which is simple and convenient to install, does not occupy indoor space, and can cool all the air volume discharged by the inverter, ensuring the heat dissipation and cooling effect;

[0017] (2) The utility model adopts multiple groups of refrigeration modules (the refrigeration module consists of an external circulation fan, a compressor and a condenser, an internal circulation fan, and an evaporator). Not only does the whole machine have a large refrigeration capacity, but each refrigeration module can serve as a backup for each other, ensuring that any module is out of service and the unit can operate normally, thereby ensuring the normal operation of the high-voltage inverter;

[0018] (3) The utility model adopts an internal circulation operation mode, which can ensure a clean indoor environment, effectively prevent the entry of external environmental factors such as external humid air and dust from affecting the operation of the high-voltage inverter equipment, and extend the service life of the high-voltage inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model-embodiment 1 Figure 1 .

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model-embodiment 1 Figure 2 .

[0021] Figure 3 This is a top view of Example 1 of the utility model.

[0022] Figure 4 This is a schematic diagram of the application status of Example 2 of the utility model Figure 1 .

[0023] Figure 5 for Figure 4 Schematic diagram of the side.

[0024] Figure 6 This is a schematic diagram of the application status of Example 2 of the utility model Figure 2 .

[0025] Figure 7 for Figure 6 Schematic diagram of the side.

[0026] Figure 8 This is a schematic diagram of the application status of Example 2 of the utility model Figure 3 .

[0027] Fig. 9 for Figure 8 Schematic diagram of the side.

[0028] Among them, the names corresponding to the figure numbers are as follows: 1-first shell; 2-second shell; 3-external circulation fan; 4-evaporator; 5-internal circulation fan; 6-cold air channel; 7-interface; 8-electric control box; 9-integrated air cooling unit; 10-high-voltage frequency conversion room; 11-main air duct; 12-inducing air duct; 13-outdoor exhaust duct; 14-electric air valve; 15-fresh air valve; 16-electric room; 17-low-voltage frequency conversion room. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to have a clearer understanding and knowledge of the present invention, the present invention is further described in detail in conjunction with the following embodiments. It should be noted that the specific embodiments described below are only used to explain the present invention and facilitate understanding. The technical solutions provided by the present invention are not limited to the technical solutions provided by the following embodiments, and the technical solutions provided by the embodiments should not limit the protection scope of the present invention.

[0030] Unless otherwise defined, the technical terms or scientific terms used in the disclosure of this application shall have the usual meanings understood by persons with ordinary skills in the field to which the disclosure belongs. The words "include" or "comprise" and the like used in this application mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The positional relationship words "upper", "lower", "left", "right", "front", "back", etc. are determined according to the layout direction of the drawings in the specification, and are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] Example 1

[0032] like Figures 1 to 3As shown, this embodiment provides an integrated air-cooling unit, whose external structure adopts a shell. For the convenience of description, the shells are named as a first shell and a second shell respectively. The first shell and the second shell are assembled to form an integrated structure, thereby constituting the shell of the whole machine.

[0033] Based on the setting of the shell, this embodiment is provided with a compressor and a condenser in the first shell, a plurality of external circulation fans are provided at the upper end of the first shell, an evaporator is provided in the second shell, and a plurality of internal circulation fans for guiding hot air are provided at the upper end of the second shell. The external circulation fan, the compressor and the condenser, the internal circulation fan, and the evaporator form a refrigeration module, and the connection method and working principle of the compressor, the condenser, and the evaporator belong to the existing mature technology, so they are not described here.

[0034] In a further preferred scheme, there are more than two external circulation fans, and the number of compressors and condensers matches the number of external circulation fans; there are more than two internal circulation fans, and the number of evaporators matches the number of internal circulation fans. Through the above settings, a combination design of N refrigeration modules is realized, the cooling capacity of the whole machine is large, and each refrigeration module can operate independently and serve as backup for each other, ensuring that if any module exits, the unit can still operate normally.

[0035] An interface for connecting a pipeline is provided on the outside of the upper end of the second housing, and the internal circulation fan is placed in the interface. The side of the second housing is open and forms a cold air channel. The interface adopts a rectangular frame structure, which is used to connect to the external pipeline. Hot air enters the unit through this end. The cold air channel is used to connect to the external pipeline, and the cold air generated after the unit is cooled is sent out through this end.

[0036] The electric control box is arranged on the side of the first housing, and is used to control the operation of the unit. Based on the above structure, the utility model can also realize the following extended functions:

[0037] (1) The unit system can automatically adjust the operating state according to the equipment load and external ambient temperature to achieve energy-saving operation; (2) The unit has a fully automatic unattended function, which can realize automatic and manual adjustment of temperature and various other operating parameters; (3) The unit is equipped with a protection system, automatic start and stop and power-off memory functions, automatic fault detection function, and overload, overcurrent, undervoltage, high and low voltage protection. The performance is safe and reliable, and the control system has an upload module RS485 interface; (4) The unit can monitor indoor temperature, outdoor temperature, inlet temperature, outlet temperature, humidity and other parameters, and has a historical record database query, and the query interface is represented by a curve chart.

[0038] Example 2

[0039] This embodiment provides an air cooling system, which is based on the integrated air cooling unit provided in Embodiment 1, and includes an integrated air cooling unit installed outdoors, a main air duct for collecting hot air, and a plurality of induced air ducts connected to the main air duct at one end and connected to the internal circulation fan of the integrated air cooling unit at the other end, the induced air duct is connected to the internal circulation fan through an interface, and the cold air channel of the integrated air cooling unit is connected to the interior of the room; generally, one induced air duct corresponds to one integrated air cooling unit, and when there are multiple induced air ducts, a matching number of integrated air cooling units are used. The shapes of the main air duct and the induced air duct are not particularly limited, and their shapes can be adapted and adjusted according to different application scenarios.

[0040] According to different application scenarios, the specific layout of the air cooling system is different, as follows:

[0041] First: Air cooling system is used in high voltage frequency conversion room

[0042] like Figure 4 and 5 As shown, an air duct is made at the air outlet of the fan on the top of the inverter cabinet in the frequency conversion room, and the air duct is connected to the main air duct. The main air duct collects the hot air discharged by the fan on the top of the cabinet, and then leads the hot air to the integrated air cooling unit installed on the outer wall of the frequency conversion room through the induced air duct. After cooling by the evaporator in the unit, the cold air is sent back to the frequency conversion room. Through the above arrangement, a closed internal circulation of indoor air is formed, which ensures a clean indoor environment and effectively avoids the influence of external dust on the operation of the frequency converter; in a further preferred embodiment, an outdoor exhaust duct is also arranged on the side of the induced air duct, near the connection position between it and the integrated air cooling unit, and an electric air valve is arranged at the outlet end of the outdoor exhaust duct. The outdoor exhaust duct is connected to the induced air duct. The outdoor exhaust duct is used as an emergency exhaust port and is opened in the case of maintenance / failure of the integrated air cooling unit. At the same time, the doors and windows of the frequency conversion room are opened to let in air, which can ensure the stable operation of the frequency converter.

[0043] Second: Air cooling system is used in the electrical room

[0044] like Figure 6 and 7 As shown, the electrical room is designed with a fully enclosed internal cooling cycle, and the integrated air-cooled unit is installed outdoors. The hot air exhausted by the fan of the SVG equipment during operation is collected through the indoor air duct (original), and the main air duct is made outdoors. The main air duct is connected to the indoor air duct and the induced draft duct is connected to each integrated air-cooled unit for internal cooling and heat dissipation. The cooled cold air is sent back to the room, and the fan of the heat unit takes away; in a further preferred embodiment, an outdoor exhaust duct is also provided, and an electric air valve is provided at the outlet end of the outdoor exhaust duct. The outdoor exhaust duct is connected to the induced draft duct. The outdoor exhaust duct serves as an emergency exhaust port and is opened in case of maintenance / failure of the integrated air-cooled unit. At the same time, the doors and windows of the electrical room are opened to let in air, which can ensure stable operation of the equipment.

[0045] Third: Air cooling system is used in low voltage frequency conversion room

[0046] like Figure 8 and 9 As shown, the low-voltage frequency conversion room is designed with an integrated air-cooled unit cooling cycle. The whole equipment is installed outdoors. A main air duct is made above the indoor frequency converter to collect the heat generated by the frequency converter operation. The hot air is led to the integrated air-cooled unit through the induced draft duct for cooling and heat dissipation. The cooled cold air is sent back to the room, and the heat is taken away by the unit. In a further preferred embodiment, an outdoor exhaust duct is also provided on the side of the induced draft duct, near the connection position between it and the integrated air-cooled unit. A fresh air valve and a matching fresh air filter are provided at the outlet end of the outdoor exhaust duct. In summer, when the outside environment temperature is high and the indoor temperature is high, the unit automatically turns on the compressor for internal circulation refrigeration. In winter, when the outside environment temperature is low and the indoor temperature is high, the unit stops the compressor, opens the fresh air valve, turns on the fresh air function, and delivers fresh air to the room according to the set temperature. The fresh air passes through the filter device and enters the room for cooling.

[0047] The above is the preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements without departing from the design principle and technical solution of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. An integrated air-cooling unit, characterized in that: The invention comprises a first shell (1) and a second shell (2) which are assembled into one body, a compressor and a condenser are arranged in the first shell (1), a plurality of external circulation fans (3) are arranged at the upper end of the first shell (1), an evaporator (4) is arranged in the second shell (2), a plurality of internal circulation fans (5) for guiding hot air are arranged at the upper end of the second shell (2), and the side of the second shell (2) is open and forms a cold air channel (6).

2. The integrated air-cooling unit according to claim 1, characterized in that: An interface portion (7) for connecting a pipeline is arranged outside the upper end of the second shell (2), and the internal circulation fan (5) is placed inside the interface portion (7).

3. The integrated air-cooling unit according to claim 2, characterized in that: An electric control box (8) is arranged on the side of the first housing (1).

4. The integrated air-cooling unit according to claim 3 is characterized in that: There are more than two external circulation fans (3), and the number of compressors and condensers (16) matches the number of external circulation fans (3).

5. The integrated air-cooling unit according to claim 4, characterized in that: There are more than two internal circulation fans (5), and the number of the evaporators (4) matches the number of the internal circulation fans (5).

6. An air cooling system, characterized in that: It comprises an integrated air-cooling unit (9) as described in any one of claims 1 to 5 installed outdoors, a main air duct (11) for collecting hot air, a plurality of induced air ducts (12) connected to the main air duct (11) at one end and connected to the internal circulation fan (5) of the integrated air-cooling unit (9) at the other end, and the cold air channel (6) of the integrated air-cooling unit (9) is connected to the indoor room.

7. The air cooling system according to claim 6, characterized in that: An outdoor exhaust duct (13) is also provided on the side of the air duct (12), near the connection position between the air duct and the integrated air cooling unit (9), and the outdoor exhaust duct (13) is connected to the air duct (12).

8. The air cooling system according to claim 7, characterized in that: An electric air valve (14) is provided at the outlet end of the outdoor exhaust pipe (13).

9. The air cooling system according to claim 7, characterized in that: A fresh air valve (15) is provided at the outlet end of the outdoor exhaust pipe (13).

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