Modularized multi-connected cold supplementing indirect evaporative cooling unit for data center

Abstract

The utility model discloses a data center modularization multi-connection cold supplementing indirect evaporative cooling unit which comprises a compression condensing unit, an AHU, an air pipe refrigerant loop, a liquid pipe refrigerant loop and a data machine room, the compression condensing unit is connected with the AHU through the air pipe refrigerant loop and the liquid pipe refrigerant loop, the data machine room is installed and connected at the corresponding position of the AHU, and the data machine room is connected with the air pipe refrigerant loop and the liquid pipe refrigerant loop. The basic working principle is that a plurality of compression condensing units correspond to a plurality of indirect evaporative cooling unit cold supplementing evaporators. When part of units operate, the areas of all the condensers can be fully utilized, the power consumption of the whole unit is reduced, and the overall energy efficiency is improved. When a certain unit breaks down, the unit can be independently disconnected for maintenance. The energy efficiency is improved, and the problem of single fault is solved.

Description

Technical Field

[0001] The utility model relates to a unit device, in particular to a modular multi-connected cooling supplement indirect evaporative cooling unit for a data center. Background Art

[0002] The data center indirect evaporative cooling unit is an efficient and energy-saving cooling solution. It mainly uses external natural cold sources for indirect heat exchange and water spray evaporative cooling technology to extend the use time of natural cooling and significantly reduce the energy consumption of the data center cooling system.

[0003] The operating modes of indirect evaporative cooling units in data centers mainly include the following three modes:

[0004] Dry mode: When outdoor temperatures are low, the indirect evaporative cooling unit exchanges heat directly with the hot return air from the server room, achieving optimal cooling without the need for additional evaporative cooling. In this mode, the outdoor air is first filtered, then passes through a heat exchanger to cool the return air from the server room. The cooled outdoor air is then exhausted outdoors, while the return air from the server room is then delivered to the server room.

[0005] Wet operating mode: When outdoor temperatures are high but humidity is low, the indirect evaporative cooling unit, in addition to air-to-air heat exchange, also requires evaporative cooling via a spray or high-pressure mist spray system to supplement cooling capacity. Outdoor air cools the server room return air within the heat exchanger before being exhausted to the outside by the outdoor EC fan. The hot server room return air is cooled by the heat exchanger and spray system before being delivered to the server room.

[0006] Mixed-mode operation: When both outdoor temperature and humidity are high, the indirect evaporative cooling unit uses the two aforementioned modes and also activates the mechanical cooling system to further lower the air temperature. In this case, after the outdoor air cools the server room return air in the heat exchanger, if the temperature still does not meet the required return air temperature, it is further cooled by the mechanical cooling coil to reach the set supply air temperature before being delivered to the server room.

[0007] Currently, data center rooms require multiple indirect evaporative cooling units, each of which requires a DX system for supplemental cooling. Since data centers typically utilize less than 80% of rack space, equipping each unit with a DX supplemental cooling system is relatively expensive. Furthermore, each unit is a standalone system, and the air from all condensers must pass through an air-to-air heat exchanger. This creates significant resistance, and the redundant heat exchanger area cannot be shared, resulting in poor energy efficiency for the DX system. Utility Model Content

[0008] The purpose of the present invention is to provide a modular multi-connected indirect evaporative cooling unit for a data center to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above objectives, the present invention provides the following technical solutions:

[0010] A modular multi-connected indirect evaporative cooling unit for a data center includes a compression condensing unit, an AHU, a gas pipe refrigerant loop, a liquid pipe refrigerant loop, and a data room. The compression condensing unit is connected to the AHU via the gas pipe refrigerant loop and the liquid pipe refrigerant loop, and the data room is installed at the corresponding position of the AHU.

[0011] As a further solution of the present invention: the compression condensing unit includes a variable frequency compressor, a condenser, high and low pressure switches, high and low pressure sensors, an external fan, a liquid storage tank, and a drying filter, and each component is matched and installed and connected inside the compression condensing unit.

[0012] As a further solution of the present invention: the gas pipe refrigerant loop and the liquid pipe refrigerant loop mainly include loop copper pipes, solenoid valves, and ball valves, and the solenoid valves and ball valves are installed and connected at corresponding positions of the loop copper pipes.

[0013] As a further solution of the present invention: a cooling section is provided inside the AHU, which includes an evaporator, an electronic expansion valve, and an internal fan. The internal fan is installed and connected to the corresponding position of the surface of the evaporator, and the electronic expansion valve is installed and connected to the end.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The entire system consists of two or more units. The feed cooler heat exchangers of each indirect evaporative cooling unit are connected in parallel and can be independently disconnected for maintenance. Each feed cooler heat exchanger corresponds to multiple parallel compression condensing units. All condensers can be shared. This effectively reduces system configuration costs and significantly improves overall energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a modular multi-connected indirect evaporative cooling unit for a data center. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1In an embodiment of the present invention, a modular multi-connected indirect evaporative cooling unit for a data center includes a compression condensing unit 1, an AHU 3, a gas pipe refrigerant loop, a liquid pipe refrigerant loop 2, and a data room 4.

[0019] The compression condensing unit 1 is connected to the AHU 3 through the gas pipe refrigerant loop and the liquid pipe refrigerant loop 2. The corresponding position of the AHU 3 is installed and connected to the data room 4.

[0020] The compression condensing unit 1 includes a variable frequency compressor, a condenser, high and low pressure switches, high and low pressure sensors, an external fan, a liquid storage tank, and a drying filter. Each component is matched and installed inside the compression condensing unit.

[0021] The gas pipe refrigerant loop and the liquid pipe refrigerant loop 2 mainly include loop copper pipes, solenoid valves, and ball valves. The solenoid valves and ball valves are installed and connected at the corresponding positions of the loop copper pipes.

[0022] A cooling supplement section is provided inside the AHU 3, which includes an evaporator 5, an electronic expansion valve 7, and an internal fan 6. The internal fan 6 is installed and connected to the corresponding position on the surface of the evaporator 5, and the electronic expansion valve 7 is installed and connected to the end thereof.

[0023] The working principle of this utility model is:

[0024] The basic operating principle is that multiple compression condensing units are connected to the feed cooling evaporators of multiple indirect evaporative cooling units. When some units are operating, the total condenser area can be fully utilized, reducing overall unit power consumption and improving overall energy efficiency. If a unit fails, it can be independently disconnected for maintenance. This improves energy efficiency while also addressing single-failure issues. The entire system consists of two or more units. The feed cooling heat exchanger of each indirect evaporative cooling unit is connected in parallel and can be independently disconnected for maintenance. All feed cooling heat exchangers correspond to multiple parallel compression condensing units, and all condensers can be shared.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A modular multi-connected indirect evaporative cooling unit for a data center, comprising a compression condensing unit (1), an AHU (3), a gas pipe refrigerant loop, a liquid pipe refrigerant loop (2), and a data room (4), characterized in that: The compression condensing unit (1) is connected to an AHU (3) via a gas pipe refrigerant loop and a liquid pipe refrigerant loop (2), and a data room (4) is installed and connected at a corresponding position of the AHU (3).

2. A modular multi-connected indirect evaporative cooling unit for a data center according to claim 1, characterized in that: The compression condensing unit (1) comprises a variable frequency compressor, a condenser, a high and low pressure switch, a high and low pressure sensor, an external fan, a liquid storage tank, and a drying filter, and each component is matched and installed and connected inside the compression condensing unit.

3. The modular multi-connected indirect evaporative cooling unit for a data center according to claim 1 is characterized in that: The gas pipe refrigerant loop and the liquid pipe refrigerant loop (2) mainly include loop copper pipes, solenoid valves, and ball valves. The solenoid valves and ball valves are installed and connected at corresponding positions of the loop copper pipes.

4. A modular multi-connected indirect evaporative cooling unit for a data center according to claim 1, characterized in that: A supplementary cooling section is provided inside the AHU3, and the supplementary cooling section includes an evaporator (5), an electronic expansion valve (7), and an internal fan (6). The internal fan (6) is installed and connected at a corresponding position on the surface of the evaporator (5), and the electronic expansion valve (7) is installed and connected at the end thereof.

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