Prefabricated two-stage refrigeration high-heat-density cabinet module

Abstract

The utility model provides a prefabricated two-stage refrigeration high-heat-density cabinet module, which belongs to the field of data center refrigeration air conditioners and comprises six 60kW cabinets, two network cabinets, two power supply cabinets, six 15kW heat pipe backboard air conditioners, a secondary heat channel, ten 45kW air wall tail end air conditioners, a U-shaped cold channel and two 360kW evaporation cooling magnetic suspension multi-union heat pipe coolers. Tedious cooling water and chilled water system and cold station arrangement is omitted, a cold station system does not need to be considered in the whole period in the early stage of construction, and project stage construction is more flexible and convenient.

Description

Technical Field

[0001] This utility model relates to the field of data center cooling and air conditioning, and in particular to a prefabricated two-stage cooling high heat density cabinet module. Background Technology

[0002] Traditional data center designs, when encountering high-heat-density server racks, typically employ technologies such as in-row air conditioning and liquid cooling combined with air cooling. In-row air conditioning occupies rack space, increasing the data center's footprint. Both cold-plate liquid cooling and immersion liquid cooling require specific servers, limiting their use. Furthermore, the design and construction of air conditioning piping and chilled water systems are relatively complex, with long construction cycles, and the entire chilled water system should be considered for completion during the initial construction phase. In the context of energy conservation and emission reduction, it is difficult to flexibly adapt to construction needs.

[0003] When using a pure air-wall air conditioning system for cooling, the airflow organization is not easy to fully control due to the high heat density of the cabinet. In particular, hot spots can easily be generated when the air conditioning fails.

[0004] In summary, a modular product is needed that can simultaneously address a full range of issues, including refrigeration, energy saving, broad applicability, and shortened construction cycles. Utility Model Content

[0005] To address the above technical issues, this utility model provides a prefabricated dual-stage cooling high heat density cabinet module, which can be flexibly used in new construction and renovation of high heat density cabinets. It can effectively solve technical problems such as stable cooling, energy saving and emission reduction, hot spot reduction, and modular flexible layout of high heat density cabinets, providing more possibilities for data center construction.

[0006] The technical solution of this utility model is:

[0007] A prefabricated two-stage cooling high heat density cabinet module includes 6 60kW cabinets, 2 network cabinets, 2 power cabinets, 6 15kW heat pipe backplane air conditioners, a secondary heat aisle, 10 45kW air wall terminal air conditioners, a U-shaped cold aisle, and 2 360kW evaporative cooling magnetic levitation multi-unit heat pipe chillers.

[0008] The system uses two types of terminals: a primary backplane air conditioner and a secondary air wall air conditioner, for two-stage air-cooling. It utilizes a U-shaped cold aisle to completely seal the cold airflow and deliver it to the front entrance of the server rack, integrating the server rack, power supply cabinet, and cooling system into one unit.

[0009] Furthermore,

[0010] The air conditioning units at the air wall terminal are configured with 7 units in operation and 3 units on standby; the evaporative cooling magnetic levitation multi-split heat pipe chillers are configured with one unit in operation and one unit on standby, operating in rotation.

[0011] The heat generated by the cabinet is carried by the cold air blown in by the U-shaped cold aisle to the heat pipe back panel air conditioner for the first stage of cooling at the closest end. The temperature of the hot air can be reduced to below 35°C. It then enters the secondary hot aisle for uniform airflow, and then enters the air conditioner at the end of the air wall for the second stage of cooling. The outlet air temperature is set to 27°C. The cold air directly enters the closed U-shaped cold aisle. The cold aisle passes through the top of the cabinet and returns to the front entrance of the cabinet to enter the next cycle.

[0012] An evaporative cooling magnetic levitation multi-unit heat pipe chiller is used to achieve energy-saving operation through natural cooling.

[0013] Furthermore,

[0014] It also includes internal control systems and external protocol interfaces, including basic equipment control parameters and system integration control for manual / automatic / operating status, fault status, start / stop, frequency converter feedback and regulation.

[0015] The system uses an external group control system to retrieve product data, control valve switching, and provide status feedback.

[0016] Based on the control logic of the data center group control system, the air conditioning system can achieve energy-saving operation.

[0017] The beneficial effects of this utility model are:

[0018] Throughout the product's heat dissipation process, the cold and hot aisles are strictly sealed, combining the advantages of both closed cold and hot aisles: near-end cooling, with no room-wide diffused airflow in both cold and hot aisles, and the cold air is entirely used for the product's own heat dissipation and cooling, reducing the overall system cooling capacity and achieving energy saving.

[0019] This module enables the rapid and reliable construction of a high-heat-density cabinet pure air-cooled air conditioning system.

[0020] The U-shaped enclosed cold aisle of this module product achieves complete sealing of the hot and cold aisles, maximizing airflow organization and control, and reducing cooling capacity.

[0021] This technology is mainly used in integrated products such as high-heat-density data center cabinets, air conditioners, channels, and power supplies.

[0022] The outdoor unit of this product uses an evaporative cooling magnetic levitation multi-unit heat pipe system to achieve energy-saving operation with maximum natural cooling.

[0023] This integrated device includes the necessary internal control system and external protocol interfaces, encompassing basic control parameters and system integration control such as manual / automatic / operating status, fault status, start / stop, inverter feedback and regulation, etc. It can retrieve product data, control valve switching, and provide status feedback through an external group control system. It can also achieve energy-saving operation of the air conditioning system based on the control logic of a data center group control system. Attached Figure Description

[0024] Figure 1 This is a floor plan of the product interior of this utility model;

[0025] Figure 2 This is an interior cross-sectional view of the product of this utility model;

[0026] Figure 3 This is an interior front view of the product of this utility model.

[0027] Markings in the diagram: 1 - Server rack; 2 - Heat pipe back panel air conditioning terminal (10kW, primary cooling); 3 - Secondary hot aisle; 4 - Air wall air conditioner (45kW, secondary cooling); 5 - Cold aisle; 6 - Galvanized steel sheet air duct; 7 - Induction fan; 8 - Reserved space for skylight rotation; 9 - Transparent insulated cold aisle; 10 - Sliding door. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] This invention provides a prefabricated, two-stage cooling, high-thermal-density server rack module for data center applications. It is an integrated modular product combining server rack, power supply, cooling, and aisle components. It introduces the concepts of "secondary hot aisle," "two-stage cooling," and "U-shaped cold aisle" for the first time. The product employs two-stage cooling—back panel and air wall—to ensure cooling reliability. It features both a built-in cold aisle and a secondary hot aisle, with a maximum single-rack power of 60kW and a single module supporting 250P computing power, meeting the needs of various application scenarios. The separate enclosed hot and cold aisles reduce heat loss and achieve energy-saving effects.

[0030] This utility model is a prefabricated, two-stage cooling high-thermal-density cabinet module product, suitable for new and renovated data center projects. This module mainly consists of the following parts: 6 x 60kW cabinets, 2 x network cabinets, 2 x power cabinets, 6 x 15kW heat pipe backplane air conditioners, a secondary hot aisle, 10 x 45kW air wall terminal air conditioners (7 in use, 3 on standby), a U-shaped cold aisle, and 2 x 360kW evaporative cooling magnetic levitation multi-split heat pipe chillers (one in use, one on standby, rotating operation). Working principle: Heat generated by the cabinets is carried by cold air blown into the cold aisle to the backplane air conditioners for primary cooling at the closest end, reducing the hot air temperature to below 35℃. The air then enters the secondary hot aisle for uniform airflow, and then enters the air wall air conditioners for secondary cooling, with the outlet air temperature set at 27℃. The cold air directly enters the enclosed U-shaped cold aisle, passing through the top of the cabinets and returning to the front entrance to begin the next cycle. Throughout the product's heat dissipation process, the cold and hot aisles are strictly sealed, combining the advantages of both closed cold and hot aisles: near-end cooling, with no room-wide diffused airflow in both cold and hot aisles, and the cold air is entirely used for the product's own heat dissipation and cooling, reducing the overall system cooling capacity and achieving energy saving.

[0031] The outdoor unit adopts an evaporative cooling magnetic levitation multi-unit heat pipe unit, which operates in a modular manner and can realize the maximum natural cooling technology of refrigerant and efficient evaporation and condensation technology to achieve high efficiency and energy saving.

[0032] The above description is merely a preferred embodiment of this utility model and is only used to illustrate the technical solution of this utility model. It is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A prefabricated two-stage cooling high thermal density cabinet module, characterized in that, It includes 6 60kW server racks, 2 network server racks, 2 power supply racks, 6 15kW heat pipe backplane air conditioners, a secondary heat aisle, 10 45kW air wall terminal air conditioners, a U-shaped cold aisle, and 2 360kW evaporative cooling magnetic levitation multi-split heat pipe chillers. The system uses two types of terminals: a primary backplane air conditioner and a secondary air wall air conditioner, for two-stage air-cooling. It utilizes a U-shaped cold aisle to completely seal the cold airflow and deliver it to the front entrance of the server rack, integrating the server rack, power supply cabinet, and cooling system into one unit.

2. The module according to claim 1, characterized in that, The air conditioning units at the air wall terminal are configured with 7 units in operation and 3 units on standby; the evaporative cooling magnetic levitation multi-split heat pipe chillers are configured with one unit in operation and one unit on standby, operating in rotation.

3. The module according to claim 1, characterized in that, The heat generated by the cabinet is carried by the cold air blown in by the U-shaped cold aisle to the heat pipe back panel air conditioner for the first stage of cooling at the closest end. The temperature of the hot air drops below 35°C and enters the secondary hot aisle for uniform airflow. Then it enters the air conditioner at the end of the air wall for the second stage of cooling. The outlet air temperature is set to 27°C. The cold air directly enters the closed U-shaped cold aisle. The cold aisle passes through the top of the cabinet and returns to the front entrance of the cabinet to enter the next cycle.

4. The module according to claim 1, characterized in that, An evaporative cooling magnetic levitation multi-unit heat pipe chiller is used to achieve energy-saving operation through natural cooling.

5. The module according to claim 1, characterized in that, It also includes internal control systems and external protocol interfaces, including basic equipment control parameters and system integration control for manual / automatic / operating status, fault status, start / stop, frequency converter feedback and regulation.

6. The module according to claim 1, characterized in that, The system enables the retrieval of product data, valve switching control, and status feedback through an external group control system.

7. The module according to claim 1, characterized in that, Based on the control logic of the data center group control system, the air conditioning system can achieve energy-saving operation.

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