Radiation and convection coupling type data center cold supply system with self-adaptive partition temperature control function

Abstract

The invention belongs to the technical field of data center cooling, and particularly relates to a self-adaptive partition temperature control radiation convection coupling type data center cooling system which comprises a prefabricated radiation suspended ceiling plate cooling tail end system, a precision air conditioning system and a control system, the prefabricated radiation suspended ceiling plate cooling tail end system is connected with the precision air conditioning system, and the precision air conditioning system is connected with the prefabricated radiation suspended ceiling plate cooling tail end system. The prefabricated radiation suspended ceiling board cold supply tail end system and the precise air conditioning system are both electrically connected with the control system, the prefabricated radiation suspended ceiling board cold supply tail end system comprises a plurality of prefabricated radiation suspended ceiling board units, and an efficient heat exchange unit and a control unit are integrated in each prefabricated radiation suspended ceiling board unit. The efficient heat exchange unit is connected with the control unit, and the control unit is electrically connected with the control system. Radiation cooling and convection cooling are combined, the proportion of the two cooling modes is automatically adjusted according to thermal load changes of different areas, and the efficient and energy-saving cooling target is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of data center cooling, and in particular relates to a radiation-convection coupled data center cooling system with adaptive zone temperature control. Background Art

[0002] With the rapid development of technologies such as cloud computing, big data, and artificial intelligence, the scale of data centers is becoming increasingly large, and their energy consumption issues are becoming increasingly prominent. As a key system to ensure the stable operation of servers, the cooling system of the data center accounts for about 30% to 45% of the total energy consumption of the data center. Therefore, how to improve the efficiency of the cooling system of the data center and reduce energy consumption has become a key issue that the industry needs to solve urgently.

[0003] The traditional data center cooling system based on centralized air conditioning has the following shortcomings: Uneven airflow organization: cold air is difficult to effectively deliver to high heat load areas, which easily forms local hot spots and affects the stability of server operation. High energy consumption: a large amount of electricity is required to drive the fan, and there is a large energy loss during the cold air delivery process. Low temperature control accuracy: It is difficult to accurately control the temperature according to the changes in heat load in different areas, which easily causes overcooling and wastes energy.

[0004] In recent years, radiant cooling technology has been gradually applied to the cooling field of data centers due to its advantages such as energy saving, comfort, and precise temperature control. However, traditional radiant cooling systems also have some limitations: Low cooling efficiency: Mainly relying on natural convection heat exchange, the cooling speed is slow and it is difficult to meet the cooling needs of high heat load data centers. Difficult to cope with large temperature differences: When the ambient temperature changes greatly, the temperature control effect of the radiant cooling system will be affected. Summary of the invention

[0005] In response to the technical problem of low cooling efficiency of the above-mentioned traditional radiation cooling system, the present invention provides a radiation convection coupled data center cooling system with adaptive zoned temperature control, which combines radiation cooling with convection cooling and combines it with intelligent control strategies to achieve the goal of efficient, energy-saving, precise and comfortable cooling of the data center.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A radiation convection coupled data center cooling system with adaptive zone temperature control, comprising a prefabricated radiation ceiling panel cooling terminal system, a precision air-conditioning system, and a control system. The prefabricated radiation ceiling panel cooling terminal system is connected to the precision air-conditioning system, and both the prefabricated radiation ceiling panel cooling terminal system and the precision air-conditioning system are electrically connected to the control system. The prefabricated radiation ceiling panel cooling terminal system comprises a plurality of prefabricated radiation ceiling panel units, each of which is internally integrated with a high-efficiency heat exchange unit and a control unit, the high-efficiency heat exchange unit is connected to the control unit, and the control unit is electrically connected to the control system.

[0008] The precision air conditioning system includes a water chiller, a pipeline, and a valve. The water chiller is connected to a high-efficiency heat exchange unit through a pipeline, and the valve is installed on the pipeline.

[0009] The control system includes a temperature sensor, a flow sensor, a pressure sensor, a data acquisition and processing unit, and a central controller. The temperature sensor, the flow sensor, and the pressure sensor are all connected to the data acquisition and processing unit, and the data acquisition and processing unit is electrically connected to the central controller.

[0010] The temperature sensor is arranged in each temperature control area to monitor the temperature of the computer room in real time and transmit the temperature data to the central controller; the central controller controls the cooling water flow of the high-efficiency heat exchange unit in the prefabricated radiant ceiling panel cooling terminal system and the operating status of the precision air-conditioning system according to the preset temperature control strategy, so as to realize precise control of the temperature of the data center.

[0011] The high-efficiency heat exchange unit includes a capillary network header, a capillary network tube, a sound-absorbing pad, a heat-insulating plate and a metal ceiling plate. The capillary network header is connected to the capillary network tube, the capillary network tube is arranged on the sound-absorbing pad, the sound-absorbing pad is installed in the metal ceiling plate, and the heat-insulating plate is arranged on the capillary network tube.

[0012] A radiation-convection coupled data center cooling method with adaptive zone temperature control comprises the following steps:

[0013] S1. Formulation of zoned temperature control strategy: Divide the data center room into several temperature control zones according to the deployment of the data center servers, heat load distribution and personnel activity areas; for each temperature control zone, set the corresponding temperature control target value and allowable deviation range according to its heat load characteristics and temperature and humidity requirements;

[0014] S2. Real-time data acquisition and analysis: The temperature sensor acquires the ambient temperature of each temperature-controlled area in real time, and transmits the data to the data acquisition and processing unit of the control system; the flow sensor acquires the flow of cooling water in the cooling terminal system of the prefabricated radiant ceiling panel in real time, and transmits the data to the data acquisition and processing unit of the control system; the pressure sensor acquires the pressure of cooling water in the cooling terminal system of the prefabricated radiant ceiling panel in real time, and transmits the data to the data acquisition and processing unit of the control system; the data acquisition and processing unit processes and analyzes the acquired data, identifies the real-time heat load change trend of each temperature-controlled area, and transmits it to the central controller;

[0015] S3. Adaptive zone temperature control adjustment: The central controller automatically adjusts the cooling water flow and other parameters of the prefabricated radiation ceiling panel units in each temperature control area according to the real-time temperature and preset temperature control target of each temperature control area, so as to realize adaptive adjustment of the ratio of radiation cooling and convection cooling, as well as the start and stop and adjustment of the precision air-conditioning system; when the ambient temperature is low and the heat load is low, it mainly relies on radiation cooling to reduce the energy consumption of convection cooling, and reduces the operating load of the precision air-conditioning system or shuts down some units according to actual needs; when the ambient temperature rises and the heat load is high, the cooling water flow is increased to quickly reduce the temperature and ensure stable operation of the server. At the same time, the operating load of the precision air-conditioning system is increased or more units are started according to actual needs;

[0016] S4. System optimization and energy-saving control: The control system analyzes the system operating efficiency based on historical operating data and real-time monitoring data, and optimizes the temperature control strategy and adjustment parameters, adjusts the temperature control target value according to seasonal changes, and dynamically adjusts the temperature control area division according to the server operating status.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention combines radiation cooling with convection cooling, and automatically adjusts the ratio of the two cooling modes according to the changes in the heat load of different areas, thereby achieving the goal of efficient and energy-saving cooling. The present invention adopts a zoned temperature control strategy and intelligent adjustment means, which can achieve precise temperature control according to the changes in the heat load of different areas, avoid overcooling, and save energy. The prefabricated radiation ceiling panel unit of the present invention adopts a modular design, can be flexibly assembled according to actual needs, and is easy and quick to install. The present invention realizes remote monitoring, data analysis and optimization control of the cooling system through a control system, thereby improving the operation and maintenance efficiency of the data center. The present invention adopts a prefabricated radiation ceiling panel cooling terminal system to adjust the temperature of the working area and the maintenance area, thereby increasing the comfort of data room managers at work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0021] Figure 1 It is a structural block diagram of the present invention;

[0022] Figure 2 This is a schematic structural diagram of the cooling terminal system of the prefabricated radiant ceiling panel of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the high-efficiency heat exchange unit of the present invention.

[0024] Among them: 1 is the prefabricated radiation ceiling panel cooling terminal system, 101 is the high-efficiency heat exchange unit, 1011 is the capillary network header, 1012 is the capillary network tube, 1013 is the sound-absorbing pad, 1014 is the insulation board, 1015 is the metal ceiling panel, 102 is the control unit, 2 is the precision air-conditioning system, 201 is the chiller, 202 is the pipeline, 203 is the valve, and 3 is the control system. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. These descriptions are only to further illustrate the features and advantages of the present invention, rather than to limit the claims of the present invention. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0026] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] A radiation-convection coupled data center cooling system with adaptive zone temperature control, such as Figure 1 As shown, it includes a prefabricated radiant ceiling panel cooling terminal system 1, a precision air conditioning system 2, and a control system 3. The prefabricated radiant ceiling panel cooling terminal system 1 is connected to the precision air conditioning system 2, and the prefabricated radiant ceiling panel cooling terminal system 1 and the precision air conditioning system 2 are both electrically connected to the control system 3. Figure 2 As shown, the prefabricated radiant ceiling panel cooling terminal system 1 includes multiple prefabricated radiant ceiling panel units, each of which is internally integrated with a high-efficiency heat exchange unit 101 and a control unit 102. The high-efficiency heat exchange unit 101 is connected to the control unit 102, and the control unit 102 is electrically connected to the control system 3.

[0029] Furthermore, the precision air conditioning system 2 includes a chiller 201 , a pipeline 202 , and a valve 203 . The chiller 201 is connected to the high-efficiency heat exchange unit 101 through the pipeline 202 , and the valve 203 is installed on the pipeline 202 .

[0030] Furthermore, the control system 3 includes a temperature sensor, a flow sensor, a pressure sensor, a data acquisition and processing unit, and a central controller. The temperature sensor, the flow sensor, and the pressure sensor are all electrically connected to the data acquisition and processing unit, and the data acquisition and processing unit is electrically connected to the central controller.

[0031] Furthermore, a temperature sensor is arranged in each temperature control area to monitor the temperature of the computer room in real time and transmit the temperature data to the central controller; the central controller controls the cooling water flow of the high-efficiency heat exchange unit 101 in the prefabricated radiant ceiling panel cooling terminal system 1 and the operating status of the precision air-conditioning system according to the preset temperature control strategy, so as to realize precise control of the temperature of the data center.

[0032] Further, if Figure 3 As shown, the high-efficiency heat exchange unit 101 includes a capillary network header 1011, a capillary network tube 1012, a sound-absorbing pad 1013, an insulation board 1014 and a metal ceiling board 1015. The capillary network header 1011 is connected to the capillary network tube 1012, the capillary network tube 1012 is arranged on the sound-absorbing pad 1013, the sound-absorbing pad 1013 is installed in the metal ceiling board 1015, and the insulation board 1014 is arranged on the capillary network tube 1012.

[0033] A radiation-convection coupled data center cooling method with adaptive zone temperature control comprises the following steps:

[0034] 1. Development of zone temperature control strategy

[0035] According to the deployment of data center servers and the distribution of heat load, the data room is divided into two temperature-controlled areas, A and B.

[0036] For area A, the temperature control target value is set to 25°C, and the allowable deviation range is ±1°C; for area B, the temperature control target value is set to 27°C, and the allowable deviation range is ±1°C.

[0037] 2. Real-time data collection and analysis

[0038] The temperature sensor collects the ambient temperature of the two temperature control areas A and B in real time, and transmits the data to the data acquisition and processing unit of the control system.

[0039] The flow sensor collects the flow of cooling water in the prefabricated radiation ceiling panel cooling terminal system 1 in real time, and transmits the data to the data acquisition and processing unit of the control system.

[0040] The pressure sensor collects the pressure of the cooling water in the prefabricated radiation ceiling panel cooling terminal system 1 in real time, and transmits the data to the data acquisition and processing unit of the control system.

[0041] The data acquisition and processing unit processes and analyzes the collected data, identifies the real-time heat load change trend of the two temperature control areas A and B, and transmits it to the central controller.

[0042] 3. Adaptive zone temperature control

[0043] Assuming that the real-time temperature of area A is 25.5°C at the current moment and the heat load is low, the central controller 305 controls the cooling water flow of the prefabricated radiation ceiling panel unit 101 in area A to maintain it at a low level, reducing the energy consumption of convection cooling, and reducing the operating load of the precision air-conditioning system 2 or shutting down some units according to actual needs.

[0044] Assuming that the real-time temperature of area B is 27.8°C at the current moment, the heat load is high. The central controller controls the cooling water flow of the prefabricated radiation ceiling panel unit in area B to increase to a higher level, enhance convection cooling, quickly reduce the temperature, and ensure stable operation of the server. At the same time, according to actual needs, increase the operating load of precision air conditioning system 2 or start more units.

[0045] 4. System optimization and energy-saving control

[0046] The control system 3 analyzes the system operation efficiency based on historical operation data and real-time monitoring data, and optimizes the temperature control strategy, adjustment parameters, etc. For example, it adjusts the temperature control target value according to seasonal changes, dynamically adjusts the temperature control area division according to the server operation status, etc., to achieve energy saving and consumption reduction of the data center cooling system.

[0047] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the protection scope of the present invention.

Claims

1. A radiation-convection coupled data center cooling system with adaptive zone temperature control, characterized in that: The invention comprises a prefabricated radiant ceiling panel cooling terminal system (1), a precision air conditioning system (2), and a control system (3); the prefabricated radiant ceiling panel cooling terminal system (1) is connected to the precision air conditioning system (2); the prefabricated radiant ceiling panel cooling terminal system (1) and the precision air conditioning system (2) are both electrically connected to the control system (3); the prefabricated radiant ceiling panel cooling terminal system (1) comprises a plurality of prefabricated radiant ceiling panel units; each prefabricated radiant ceiling panel unit is internally integrated with a high-efficiency heat exchange unit (101) and a control unit (102); the high-efficiency heat exchange unit (101) is connected to the control unit (102); and the control unit (102) is electrically connected to the control system (3).

2. According to claim 1, a radiation-convection coupled data center cooling system with adaptive zone temperature control is characterized by: The precision air conditioning system (2) comprises a water chiller (201), a pipeline (202), and a valve (203); the water chiller (201) is connected to the high-efficiency heat exchange unit (101) via the pipeline (202), and the valve (203) is installed on the pipeline (202).

3. According to claim 1, the radiation-convection coupled data center cooling system with adaptive zone temperature control is characterized by: The control system (3) comprises a temperature sensor, a flow sensor, a pressure sensor, a data acquisition and processing unit, and a central controller. The temperature sensor, the flow sensor, and the pressure sensor are all connected to the data acquisition and processing unit, and the data acquisition and processing unit is electrically connected to the central controller.

4. The radiation-convection coupled data center cooling system with adaptive zone temperature control according to claim 3 is characterized by: The temperature sensor is arranged in each temperature control area for real-time monitoring of the temperature of the computer room and transmitting the temperature data to the central controller; the central controller controls the cooling water flow of the high-efficiency heat exchange unit (102) in the prefabricated radiant ceiling panel cooling terminal system (1) and the operating state of the precision air conditioning system according to a preset temperature control strategy, thereby achieving precise control of the temperature of the data center.

5. According to claim 1, the radiation-convection coupled data center cooling system with adaptive zone temperature control is characterized by: The high-efficiency heat exchange unit (101) comprises a capillary network header (1011), a capillary network tube (1012), a sound-absorbing pad (1013), a heat-insulating plate (1014) and a metal ceiling plate (1015); the capillary network header (1011) is connected to the capillary network tube (1012); the capillary network tube (1012) is arranged on the sound-absorbing pad (1013); the sound-absorbing pad (1013) is installed in the metal ceiling plate (1015); and the heat-insulating plate (1014) is arranged on the capillary network tube (1012).

6. A radiation-convection coupled data center cooling method with adaptive zone temperature control, the method is used in an adaptive zone temperature control radiation-convection coupled data center cooling system as described in any one of 1-5, characterized in that: The following steps are involved: S1. Formulation of zoned temperature control strategy: Divide the data center room into several temperature control zones according to the deployment of the data center servers, heat load distribution and personnel activity areas; for each temperature control zone, set the corresponding temperature control target value and allowable deviation range according to its heat load characteristics and temperature and humidity requirements; S2. Real-time data collection and analysis: The temperature sensor collects the ambient temperature of each temperature control area in real time and transmits the data to the data collection and processing unit of the control system; The flow sensor collects the flow of cooling water in the cooling terminal system of the prefabricated radiant ceiling panel in real time, and transmits the data to the data acquisition and processing unit of the control system; The pressure sensor collects the pressure of cooling water in the cooling terminal system of the prefabricated radiant ceiling panel in real time, and transmits the data to the data acquisition and processing unit of the control system; The data acquisition and processing unit processes and analyzes the collected data, identifies the real-time heat load change trend of each temperature control area, and transmits it to the central controller; S3, Adaptive zone temperature control adjustment: The central controller automatically adjusts the parameters such as the cooling water flow of the prefabricated radiation ceiling panel unit in each temperature control area according to the real-time temperature and the preset temperature control target of each temperature control area, so as to realize the adaptive adjustment of the ratio of radiation cooling and convection cooling, as well as the start and stop and adjustment of the precision air-conditioning system; when the ambient temperature is low and the heat load is low, it mainly relies on radiation cooling to reduce the energy consumption of convection cooling, and reduces the operating load of the precision air-conditioning system or shuts down some units according to actual needs; when the ambient temperature rises and the heat load is high, the cooling water flow is increased to quickly reduce the temperature and ensure the stable operation of the server; At the same time, increase the operating load of the precision air conditioning system or start more units according to actual needs; S4. System optimization and energy-saving control: The control system analyzes the system operating efficiency based on historical operating data and real-time monitoring data, and optimizes the temperature control strategy and adjustment parameters, adjusts the temperature control target value according to seasonal changes, and dynamically adjusts the temperature control area division according to the server operating status.

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