Data center temperature control and waste heat recovery system

Abstract

The present invention relates to the field of data center management and control technology, and specifically to a data center temperature control and waste heat recovery system. The data center temperature control and waste heat recovery system provided by the present invention includes a data center, a building complex, an energy supply system, and a temperature control system; the temperature control system is connected to the building complex and the data center at the same time, the temperature control system is suitable for cooling the data center, and is suitable for heating the building complex, the temperature control system includes a heat storage component, the heat storage component is connected to the building complex and the data center at the same time, the heat storage component is suitable for absorbing and storing the heat energy generated by the data center, and is suitable for using the heat energy generated by the data center to heat the building complex; the energy supply system is connected to the temperature control system and is suitable for providing energy to the temperature control system. The data center temperature control and waste heat recovery system provided by the present invention uses the heat energy generated by the data center for heating the building complex, effectively utilizes the heat energy generated by the data center, reduces the carbon emissions of the data center, and makes the system composed of the data center and the building complex as a whole more energy-saving and environmentally friendly.

Description

Technical Field

[0001] The present invention relates to the technical field of data center management and control, and in particular to a data center temperature control and waste heat recovery system. Background Art

[0002] A data center is a globally collaborative network of specific equipment used to transmit, accelerate, display, calculate, and store data information on the Internet network infrastructure. It is a solid foundation for the smart world and digital economy. It usually includes: power supply and distribution systems, integrated wiring systems, air conditioning and fresh air systems, security systems, environmental power monitoring systems, fire protection systems, KVM systems and other network equipment.

[0003] The various types of servers, data storage devices and network devices used in data centers convert high-quality electrical energy into low-quality thermal energy. In the prior art, when the temperature control system cools the data center, a large amount of heat generated by the data center is dissipated to the outdoor environment by the air-conditioning equipment, which not only causes a huge waste of energy, but also causes environmental pollution and aggravates the greenhouse effect. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the prior art that the heat energy generated by the data center cannot be effectively utilized, resulting in energy waste and being environmentally unfriendly, thereby providing a data center temperature control and waste heat recovery system.

[0005] The data center temperature control and waste heat recovery system provided by the present invention includes a data center, a building complex, an energy supply system, and a temperature control system;

[0006] The temperature control system is connected to the building complex and the data center at the same time. The temperature control system is suitable for cooling the data center and for heating the building complex. The temperature control system includes a heat storage element. The heat storage element is connected to the building complex and the data center at the same time. A first switch element is provided between the heat storage element and the data center, and a second switch element is provided between the heat storage element and the building complex. The first switch element is suitable for switching on and off the connection between the heat storage element and the data center, and the second switch element is suitable for switching on and off the connection between the heat storage element and the building complex. The heat storage element is suitable for absorbing and storing heat energy generated by the data center, and is suitable for using the heat energy generated by the data center to heat the building complex.

[0007] The energy supply system is connected to the temperature control system and is suitable for providing energy to the temperature control system.

[0008] Optionally, a heat storage buffer is connected between the data center and the heat storage component, and the heat storage buffer is connected to the building complex. The heat storage buffer is located between the data center and the first switch component. The heat storage buffer is suitable for absorbing and storing thermal energy generated by the data center, and is suitable for transferring the thermal energy generated by the data center to the building complex and the heat storage component. A third switch component is arranged between the heat storage buffer and the building complex, and the third switch component is suitable for opening and closing the connection between the heat storage buffer and the building complex.

[0009] Optionally, the temperature control system further includes a boiler, and the boiler is connected to the building complex via a ninth switch.

[0010] Optionally, a hot water pump is connected between the heat storage element and the building complex.

[0011] Optionally, the temperature control system also includes a water source heat pump, which is connected to the building complex and suitable for heating the building complex. A fourth switch is provided between the water source heat pump and the building complex, and the fourth switch is suitable for opening and closing the connection between the water source heat pump and the building complex.

[0012] Optionally, the temperature control system includes a surface water source and / or a cooling tower, and the surface water source is connected to the first end of the first heat exchanger;

[0013] The temperature control system includes a water source heat pump, the second end of the first heat exchanger and / or the cooling tower are connected to the water source heat pump, and the water source heat pump is connected to the data center via a fifth switch;

[0014] And / or the temperature control system further includes a second heat exchanger, the second end of the first heat exchanger and / or the cooling tower are in communication with the first end of the second heat exchanger, the second end of the second heat exchanger is in communication with the data center, a sixth switch is provided on the pipeline in communication with the first end of the second heat exchanger, and / or a sixth switch is provided on the pipeline in communication with the second end of the second heat exchanger;

[0015] And / or the temperature control system also includes a chiller, the second end of the first heat exchanger and / or the cooling tower is connected to the first end of the chiller, the second end of the chiller is connected to the data center, a seventh switch is provided on the pipe connected to the first end of the chiller, and / or a seventh switch is provided on the pipe connected to the second end of the chiller.

[0016] Optionally, the second end of the first heat exchanger and the cooling tower are connected to the water source heat pump via the same pipe section;

[0017] and / or the second end of the first heat exchanger is connected to the cooling tower via the same pipe section and the first end of the second heat exchanger;

[0018] And / or the second end of the first heat exchanger is connected to the cooling tower and the first end of the chiller via the same pipe section.

[0019] Optionally, the temperature control system includes an evaporative heat pump, and the evaporative heat pump is connected to the data center via an eighth switch.

[0020] Optionally, the energy supply system includes a hydroelectric generator set and / or a photovoltaic generator set.

[0021] Optionally, the photovoltaic power generation group is connected in parallel with the substation of the hydroelectric power generation group through an energy storage device to jointly provide energy for the temperature control system.

[0022] The present invention has the following advantages:

[0023] 1. The data center temperature control and waste heat recovery system provided by the present invention is connected to the building complex and the data center at the same time. The temperature control system is suitable for cooling the data center and for heating the building complex. The temperature control system includes a heat storage component, which is connected to the data center through a first switch component and to the building complex through a second switch component. The heat storage component can absorb and store the heat energy generated by the data center, and turn on the second switch component in winter to connect to the building complex to heat the building complex. Compared with directly discharging the heat energy generated by the data center to the outside through air-conditioning equipment, the heat storage component can use the heat energy generated by the data center for heating the building complex, effectively utilizing the heat energy generated by the data center, reducing the carbon emissions of the data center, and making the system consisting of the data center and the building complex more energy-saving and environmentally friendly as a whole.

[0024] 2. The data center temperature control and waste heat recovery system provided by the present invention has a heat storage buffer connected between the data center and the heat storage component, the heat storage buffer is connected to the building complex, and the heat storage buffer is located between the data center and the first switch component. The heat storage buffer and the heat storage component are combined to form a short-term-long-term heat storage system, which can achieve cascade heat storage. The heat storage buffer can be used directly as a short-term heat storage device and heating source to heat the building complex during the winter heating period, reducing the transportation loss caused by the need to transfer heat from the data center to the heat storage component, and reducing the energy consumption of other heat sources for heating the building complex. In addition, during the non-heating period, the heat storage buffer can play a buffering role and provide a stable heat source temperature for the large heat storage capacity heat storage component suitable for long-term heating of the building complex.

[0025] 3. In the data center temperature control and waste heat recovery system provided by the present invention, a surface water source is connected to the first end of the first heat exchanger, and the second end of the first heat exchanger is connected to the cooling tower via the same pipe section and the water source heat pump, the second heat exchanger, and the chiller. Sharing a pipe section can save pipe consumption, reduce the difficulty of wiring and implementation, and reduce the system investment cost.

[0026] 4. The data center temperature control and waste heat recovery system provided by the present invention has an energy supply system including a hydroelectric generator set and a photovoltaic generator set, which can provide clean energy for the temperature control system, make full use of natural resources, and be green and environmentally friendly. The hydroelectric generator set relies on surface water sources to generate electricity, and the photovoltaic power generation equipment can be set on the water surface, and the space utilization rate of the entire system is high.

[0027] 5. The data center temperature control and waste heat recovery system provided by the present invention uses surface water sources as free cold sources for data centers, exchanges waste heat from data centers through heat exchangers, and provides heat for building complexes. Since surface water sources like river water have lower water temperatures in winter and transition seasons, they can be used as free cold sources for data centers. Combined with the natural cooling operation method of cooling towers, the use time of cooling towers and chillers is greatly shortened, and the power and water consumption of the system is reduced. The waste heat emitted by the data center is recovered and stored uninterruptedly throughout the year, and this part of the heat can be used free of charge when heating is needed in winter, reducing residents' electricity and gas consumption for domestic hot water.

[0028] 6. The data center temperature control and waste heat recovery system provided by the present invention can provide cooling for the data center and heating for the building complex across seasons. Different operation control modes can be selected according to different seasons to make full use of clean energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 Schematic diagram of a data center temperature control and waste heat recovery system according to an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. Hydroelectric generator set; 2. Photovoltaic generator set; 3. Energy storage device; 4. Evaporative heat pump; 5. Water source heat pump; 6. Chiller; 7. Surface water source; 8. Cooling tower; 9. First heat exchanger; 10. Second heat exchanger; 11. Boiler; 12. Data center; 13. Building complex; 14. Heat storage buffer; 15. Third heat exchanger; 16. Heat storage component; 17. Hot water pump; K1, first switch component; K2, second switch component; K3, third switch component; K4, fourth switch component; K5, fifth switch component; K6, sixth switch component; K7, seventh switch component; K8, eighth switch component; K9, ninth switch component. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, 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 the present invention can be understood according to specific circumstances.

[0036] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] Example

[0038] refer to Figure 1 , the data center temperature control and waste heat recovery system provided by the embodiment of the present invention includes a data center 12, a building complex 13, an energy supply system, and a temperature control system;

[0039] The temperature control system is connected to the building complex 13 and the data center 12 at the same time. The temperature control system is suitable for cooling the data center 12 and for heating the building complex 13. The temperature control system includes a heat storage element 16. The heat storage element 16 is connected to the building complex 13 and the data center 12 at the same time. A first switch element K1 is provided between the heat storage element 16 and the data center 12, and a second switch element K2 is provided between the heat storage element 16 and the building complex 13. The first switch element K1 is suitable for switching on and off the connection between the heat storage element 16 and the data center 12, and the second switch element K2 is suitable for switching on and off the connection between the heat storage element 16 and the building complex 13. The heat storage element 16 is suitable for absorbing and storing the heat energy generated by the data center 12, and is suitable for using the heat energy generated by the data center 12 to heat the building complex 13;

[0040] The energy supply system is connected to the temperature control system and is suitable for providing energy to the temperature control system.

[0041] In this embodiment, the temperature control system is connected to the building complex 13 and the data center 12 at the same time. The temperature control system is suitable for cooling the data center 12 and for heating the building complex 13. The temperature control system includes a heat storage element 16. The heat storage element 16 is connected to the data center 12 through a first switch element K1 and to the building complex 13 through a second switch element K2. The heat storage element 16 can absorb and store the heat energy generated by the data center 12, and turn on the second switch element K2 in winter to connect to the building complex 13 to heat the building complex 13. Compared with directly discharging the heat energy generated by the data center 12 to the outside through air-conditioning equipment, the heat storage element 16 can use the heat energy generated by the data center 12 to heat the building complex 13, effectively utilizing the heat energy generated by the data center 12, reducing the carbon emissions of the data center 12, and making the system composed of the data center 12 and the building complex 13 more energy-saving and environmentally friendly as a whole.

[0042] In this embodiment, the structure of the heat storage element 16 is not specifically limited. As an implementation mode, the heat storage element 16 includes a heat storage pit and a solid heat storage material stored in the heat storage pit. The heat storage material can be gravel or rock. The heat storage material is connected to the data center 12 and the building complex 13 through a pipeline. The first switch element K1 and the second switch element K2 are both valves arranged on the pipeline. A heat exchange medium, which can be water, flows in the pipeline. As another implementation mode, the heat storage element 16 includes a heat storage tank and a heat storage liquid stored in the heat storage tank. The heat storage tank is connected to the data center 12 and the building complex 13 through a pipeline. The first switch element K1 and the second switch element K2 are both valves arranged on the pipeline. The heat storage liquid can be water or ethylene glycol.

[0043] As a preferred embodiment, a heat storage buffer 14 is connected between the data center 12 and the heat storage component 16, and the heat storage buffer 14 is connected to the building complex 13. The heat storage buffer 14 is located between the data center 12 and the first switch component K1. The heat storage buffer 14 is suitable for absorbing and storing the heat energy generated by the data center 12, and is suitable for transferring the heat energy generated by the data center 12 to the building complex 13 and the heat storage component 16. A third switch component K3 is provided between the heat storage buffer 14 and the building complex 13, and the third switch component K3 is suitable for opening and closing the connection between the heat storage buffer 14 and the building complex 13.

[0044] In this embodiment, a heat storage buffer 14 is connected between the data center 12 and the heat storage component 16, and the heat storage buffer 14 is connected to the building complex 13. The heat storage buffer 14 is located between the data center 12 and the first switch component K1. The heat storage buffer 14 and the heat storage component 16 are combined to form a short-term-long-term heat storage system, which can achieve cascade heat storage. The heat storage buffer 14 can directly serve as a short-term heat storage device and heating heat source to heat the building complex 13 during the winter heating period, reducing the transportation loss caused by the need to transfer heat from the data center 12 to the heat storage component 16, and reducing the energy consumption of other heat sources for heating the building complex 13. In addition, during the non-heating period, the heat storage buffer 14 can play a buffering role and provide a stable heat source temperature for the large heat storage capacity heat storage component 16 suitable for long-term heating of the building complex 13.

[0045] In this embodiment, the structure of the heat storage buffer 14 is not specifically limited. The structure of the heat storage buffer 14 can refer to the structure of the above-mentioned heat storage component 16, except that the heat storage capacity is different. As a specific implementation method, the heat storage buffer 14 is a small water tank, and the heat storage component 16 includes a heat storage tank. The small water tank is connected to the data center 12, the building complex 13, and the heat storage tank through pipelines. A valve is connected between the small water tank and the building complex 13. A third heat exchanger 15 is arranged between the small water tank and the heat storage tank. Specifically, the third heat exchanger 15 is a plate heat exchanger.

[0046] As a preferred embodiment, the temperature control system further includes a boiler 11, and the boiler 11 is connected to the building complex 13 via a ninth switch K9.

[0047] In this embodiment, the temperature control system also includes a boiler 11, which is connected to the building complex 13 via a switch. When the heat storage component 16 cannot meet the heating demand of the building complex 13, the boiler 11 can cooperate with the heat storage component 16 to heat the building complex 13 to meet the heating demand of the building complex 13.

[0048] As a preferred implementation, a hot water pump 17 is connected between the heat storage element 16 and the building complex 13 for pumping the heat storage medium in the heat storage element 16 to the building complex 13 .

[0049] As a preferred implementation, a heating element is connected between the heat storage element 16 and the building complex 13 . Specifically, the heating element may be an electric heating pipe, which is arranged in a pipeline between the building complex 13 and the heat storage element 16 .

[0050] In this embodiment, a heating element is connected between the heat storage element 16 and the building complex 13. When the heat storage element 16 cannot meet the heating demand of the building complex 13, the heating element can heat the heat storage medium flowing from the heat storage element 16 to the building complex 13 to meet the heating demand of the building complex 13.

[0051] As a preferred embodiment, the temperature control system also includes a water source heat pump 5, which is connected to the building complex 13. The water source heat pump 5 is suitable for heating the building complex 13. A fourth switch K4 is arranged between the water source heat pump 5 and the building complex 13. The fourth switch K4 is suitable for opening and closing the connection between the water source heat pump 5 and the building complex 13.

[0052] In this embodiment, in winter, the water source heat pump 5 can extract heat energy from the surface water source 7 with a relatively constant temperature and use it to heat the building complex 13.

[0053] As an embodiment, the temperature control system includes a surface water source 7, which is connected to the first end of the first heat exchanger 9; as an embodiment, the temperature control system includes a cooling tower 8; as another embodiment, the temperature control system includes both a surface water source 7 and a cooling tower 8, wherein the surface water source 7 is connected to the first end of the first heat exchanger 9, specifically, the first heat exchanger 9 is a plate heat exchanger, and the surface water source 7 can be flexibly selected according to the region where the system is located, and can be a river water source. In the above embodiments, both the surface water source 7 and the cooling tower 8 can be used to cool the data center 12.

[0054] Based on the above embodiment, in a preferred embodiment, the temperature control system includes a water source heat pump 5, the second end of the first heat exchanger 9 and / or the cooling tower 8 are connected to the water source heat pump 5, and the water source heat pump 5 is connected to the data center 12 via the fifth switch K5.

[0055] On the basis of the above embodiment, in a preferred embodiment, the temperature control system also includes a second heat exchanger 10, the second end of the first heat exchanger 9 and / or the cooling tower 8 are connected to the first end of the second heat exchanger 10, the second end of the second heat exchanger 10 is connected to the data center 12, a sixth switch K6 is provided on the pipeline connected to the first end of the second heat exchanger 10, and / or a sixth switch K6 is provided on the pipeline connected to the second end of the second heat exchanger 10. Specifically, the second heat exchanger 10 is a plate heat exchanger.

[0056] Based on the above embodiment, in a preferred embodiment, the second end of the first heat exchanger 9 and / or the cooling tower 8 is connected to the first end of the chiller 6, the second end of the chiller 6 is connected to the data center 12, and a seventh switch K7 is provided on the pipe connected to the first end of the chiller 6, and / or a seventh switch K7 is provided on the pipe connected to the second end of the chiller 6.

[0057] In this embodiment, the surface water source 7 and the cooling tower 8 in the temperature control system can be used to cool the data center 12, and the surface water source 7 and the cooling tower 8 can be connected to the water source heat pump 5, the second heat exchanger 10, and the chiller 6 respectively. The water source heat pump 5, the second heat exchanger 10, and the chiller 6 are all connected to the data center 12. The temperature control system can adjust the operation control scheme of the temperature control system according to the changes in the temperature of the surface water source 7 and the outdoor dry-bulb temperature, thereby maximizing the use of natural resources and avoiding energy waste.

[0058] On the basis of the above-mentioned embodiment, in a preferred embodiment, the second end of the first heat exchanger 9 and the cooling tower 8 are connected to the water source heat pump 5 via the same pipe section.

[0059] On the basis of the above embodiment, in a preferred embodiment, the second end of the first heat exchanger 9 and the cooling tower 8 are connected to the first end of the second heat exchanger 10 via the same pipe section.

[0060] On the basis of the above embodiment, in a preferred embodiment, the second end of the first heat exchanger 9 and the cooling tower 8 are connected to the first end of the chiller 6 via the same pipe section.

[0061] In this embodiment, the surface water source 7 is connected to the first end of the first heat exchanger 9, and the second end of the first heat exchanger 9 is connected to the cooling tower 8 via the same pipe section and the water source heat pump 5, the second heat exchanger 10, and the chiller 6. Sharing a pipe section can save pipe consumption, reduce the difficulty of wiring and implementation, and reduce the system investment cost.

[0062] As a preferred implementation, the temperature control system includes an evaporative heat pump 4 , and the evaporative heat pump 4 is connected to the data center 12 via an eighth switch K8 .

[0063] In this embodiment, the temperature control system includes an evaporative heat pump 4, which relies on the evaporation of the refrigerant in the device to absorb heat to cool the data center 12, without the need for external cooling water supply, which greatly saves the supporting facilities of the equipment and the consumption of cooling water and electricity;

[0064] In this embodiment, the structure of the energy supply system is not specifically limited. As one implementation mode, the energy supply system is a thermal power generating set; as one implementation mode, the energy supply system is a hydroelectric generating set 1; as one implementation mode, the energy supply system is a photovoltaic generating set 2; as another implementation mode, the energy supply system includes a hydroelectric generating set 1 and a photovoltaic generating set 2. Specifically, the surface water source 7 is river water, the hydroelectric generating set 1 generates electricity using the river flow, and the photovoltaic power generation equipment can be set on the water surface.

[0065] In this embodiment, the energy supply system includes a hydraulic generator set 1 and a photovoltaic generator set 2, which can provide clean energy for the temperature control system, make full use of natural resources, be green and environmentally friendly. The hydraulic generator set 1 generates electricity relying on the surface water source 7, and the photovoltaic power generation equipment can be set on the water surface, and the space utilization rate of the whole system is high.

[0066] On the basis of the above embodiment, in a preferred embodiment, the photovoltaic generator set 2 is connected in parallel with the substation of the hydraulic generator set 1 via the energy storage device 3 to jointly provide energy for the temperature control system.

[0067] In this embodiment, the photovoltaic generator set 2 is connected to the energy storage device 3, the hydraulic generator set 1 includes a transformer, and the energy storage device 3 is connected in parallel with the substation, and can supply energy for the temperature control system according to the operation plan of the system.

[0068] In this embodiment, the substation of the hydraulic generator set 1, the data center 12, and the building complex 13 are arranged near the surface water source 7 and are built adjacent to the surface water source 7, which can reduce the pipeline length, reduce the energy consumption of the water pump, the system investment, and the pipeline construction difficulty.

[0069] Based on the above specific embodiments, the operation control method of the data center temperature control and waste heat recovery system in this embodiment is as follows:

[0070] 1. For the refrigeration operation control of the data center 12:

[0071] Record the measured temperature of the surface water source as t j , and there are surface water source temperatures t1 < t2 < t3 < t4 < t5, and the settings of t1, t2, t3, t4, and t5 depend on the temperature control strategy of the data center and the region where the surface water source is located;

[0072] In winter and transitional seasons, when t j ≤ t1, turn on the sixth switch K6, turn off the fifth switch K5, the seventh switch K7, and the eighth switch K8, turn off the cooling tower 8 and the chiller 6, and the surface water source 7 exchanges heat with the second heat exchanger 10 through the first heat exchanger 9, and the chilled water after heat exchange enters the data center 12;

[0073] When t1 < t j ≤ t2, turn on the sixth switch K6, turn off the fifth switch K5, the seventh switch K7, and the eighth switch K8, turn off the chiller 6, turn on the cooling tower 8, the surface water source 7 and the cooling tower 8 cool down the cooling water, and the cooling water cools down the chilled water through the second heat exchanger 10, and the chilled water after heat exchange enters the data center 12;

[0074] When t2 < t jWhen t≤t3, the seventh switch K7 is turned on, the fifth switch K5, the sixth switch K6, and the eighth switch K8 are turned off, the chiller 6 and the cooling tower 8 are turned on, the surface water source 7 and the cooling tower 8 cool the cooling water, the cooling water enters the chiller 6 to cool the chilled water, and the chilled water after heat exchange enters the data center 12;

[0075] In summer, when t3 <t j When t4 is less than or equal to t4, the seventh switch K7 is opened, the fifth switch K5, the sixth switch K6, and the eighth switch K8 are closed, the chiller 6 and the cooling tower 8 are turned on, the circulating water pump of the surface water source 7 is turned off, and only the chiller 6 is used for cooling;

[0076] When t4 <t j When t5 is less than or equal to t5, the fifth switch K5 and the seventh switch K7 are turned on, the sixth switch K6 and the eighth switch K8 are turned off, the circulating water pump of the surface water source 7 is turned off, the chiller 6 and the cooling tower 8 are turned on, the water source heat pump 5 is turned on, and the chiller 6 and the water source heat pump 5 are used for cooling;

[0077] When t5 <t j When the cooling temperature is low, the fifth switch K5, the seventh switch K7 and the eighth switch K8 are opened, the sixth switch K6 is closed, and the chiller 6, the cooling tower 8, the water source heat pump 5 and the evaporative heat pump 4 are turned on to perform cooling together.

[0078] 2. For the heating operation control of building complex 13:

[0079] In summer, the third switch K3 is closed and the first switch K1 is opened. The heat recovered from the data center 12 is stored in the heat storage element 16 via the third heat exchanger 15. Part of the heat can be used to provide domestic hot water for the building complex 13, and part of the heat can be stored in the heat storage element 16 for a long time as backup heating energy.

[0080] In winter and transitional seasons, the outdoor measured dry-bulb temperature is t d , with temperature t d1 <t d2 <t d3 ;

[0081] When t d3 ≤t d When the third switch K3 is turned on, the first switch K1, the second switch K2, the fourth switch K4 and the ninth switch K9 are turned off, and the waste heat recovered by the data center 12 enters the heat storage buffer 14 to directly heat the building complex 13;

[0082] When t d2 ≤t d <t d3When the second switch K2 and the third switch K3 are turned on, the first switch K1, the fourth switch K4 and the ninth switch K9 are turned off, and the heat stored in the heat buffer 14 and the heat storage 16 enters the building complex 13 for heating;

[0083] When t d1 ≤t d <t d2 When the heat storage buffer 14, the heat storage component 16 and the water source heat pump 5 are used to heat the building complex 13, the second switch K2, the third switch K3 and the fourth switch K4 are turned on, the first switch K1 and the ninth switch K9 are turned off, and the water source heat pump 5 is turned on.

[0084] When t d <t d1 When the heat storage element 14 and the heat storage element 16 are used, the second switch element K2, the third switch element K3, the fourth switch element K4 and the ninth switch element K9 are opened, the first switch element K1 is closed, the water source heat pump 5 and the boiler 11 are turned on, and the building complex 13 is heated by using the heat storage buffer element 14, the heat storage element 16, the water source heat pump 5 and the boiler 11.

[0085] When the temperature control and waste heat recovery system of the data center is in operation, the hydroelectric generator set 1 and the photovoltaic generator set 2 provide operating power for the evaporative heat pump 4, the water source heat pump 5, and the chiller 6.

[0086] In this embodiment, the surface water source 7 is used as a free cold source for the data center 12, and the waste heat of the data center 12 is exchanged through a heat exchanger to provide heat for the building complex 13. Since the surface water source 7, which is similar to river water, has a lower water temperature in winter and transition seasons, it can be used as a free cold source for the data center 12. The combined use of the natural cooling operation method of the cooling tower 8 greatly shortens the use time of the cooling tower 8 and the chiller 6, and reduces the power consumption and water consumption of the system. The waste heat emitted by the data center 12 is recovered and stored uninterruptedly throughout the year. This part of the heat can be used for free when heating is needed in winter, reducing the electricity and gas consumption of residents' domestic hot water.

[0087] In this embodiment, the data center temperature control and waste heat recovery system can provide cooling for the data center 12 and heating for the building complex 13 across seasons. Different operation control modes can be selected according to different seasons to make full use of clean energy.

[0088] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A data center temperature control and waste heat recovery system, characterized in that: It includes data center (12), building complex (13), energy supply system, and temperature control system; The temperature control system is connected to the building complex (13) and the data center (12) at the same time. The temperature control system is suitable for cooling the data center (12) and for heating the building complex (13). The temperature control system comprises a heat storage element (16). The heat storage element (16) is connected to the building complex (13) and the data center (12) at the same time. A first switch element (K1) is provided between the heat storage element (16) and the data center (12). A second switch element (K2) is provided between the heat storage element (16) and the building complex (13). The first switch element (K1) is suitable for switching on and off the connection between the heat storage element (16) and the data center (12). The second switch element (K2) is suitable for switching on and off the connection between the heat storage element (16) and the building complex (13). The heat storage element (16) is suitable for absorbing and storing heat energy generated by the data center (12) and for utilizing the heat energy generated by the data center (12) to heat the building complex (13). The energy supply system is connected to the temperature control system and is suitable for providing energy to the temperature control system; The temperature control system comprises a surface water source (7) and a cooling tower (8), wherein the surface water source (7) is connected to a first end of a first heat exchanger (9); The temperature control system comprises a water source heat pump (5), the second end of the first heat exchanger (9) and the cooling tower (8) are both in communication with the water source heat pump (5), and the water source heat pump (5) is in communication with the data center (12) via a fifth switch (K5); The temperature control system further comprises a second heat exchanger (10), the second end of the first heat exchanger (9) and the cooling tower (8) are both in communication with the first end of the second heat exchanger (10), the second end of the second heat exchanger (10) is in communication with the data center (12), a sixth switch component (K6) is provided on a pipeline in communication with the first end of the second heat exchanger (10), and a sixth switch component (K6) is provided on a pipeline in communication with the second end of the second heat exchanger (10); The temperature control system further comprises a chiller (6), the second end of the first heat exchanger (9) and the cooling tower (8) are both connected to the first end of the chiller (6), the second end of the chiller (6) is connected to the data center (12), a seventh switch (K7) is provided on the pipeline connected to the first end of the chiller (6), and a seventh switch (K7) is provided on the pipeline connected to the second end of the chiller (6).

2. The data center temperature control and waste heat recovery system according to claim 1, characterized in that: A heat storage buffer (14) is connected between the data center (12) and the heat storage component (16), the heat storage buffer (14) is connected to the building complex (13), the heat storage buffer (14) is located between the data center (12) and the first switch component (K1), the heat storage buffer (14) is suitable for absorbing and storing heat energy generated by the data center (12), and is suitable for transferring heat energy generated by the data center (12) to the building complex (13) and the heat storage component (16), a third switch component (K3) is provided between the heat storage buffer (14) and the building complex (13), the third switch component (K3) is suitable for switching on and off the connection between the heat storage buffer (14) and the building complex (13).

3. The data center temperature control and waste heat recovery system according to claim 1, characterized in that: The temperature control system further comprises a boiler (11), wherein the boiler (11) is connected to the building complex (13) via a ninth switch (K9).

4. The data center temperature control and waste heat recovery system according to claim 1, characterized in that: A hot water pump (17) is connected between the heat storage element (16) and the building complex (13).

5. The data center temperature control and waste heat recovery system according to claim 1, characterized in that: The temperature control system further comprises a water source heat pump (5), the water source heat pump (5) being connected to the building complex (13), the water source heat pump (5) being suitable for providing heating for the building complex (13), a fourth switch component (K4) being provided between the water source heat pump (5) and the building complex (13), the fourth switch component (K4) being suitable for switching on and off the connection between the water source heat pump (5) and the building complex (13).

6. The data center temperature control and waste heat recovery system according to claim 1, characterized in that: The second end of the first heat exchanger (9) is connected to the cooling tower (8) and the water source heat pump (5) via the same pipe section; and / or the second end of the first heat exchanger (9) is connected to the cooling tower (8) and the first end of the second heat exchanger (10) via the same pipe section; And / or the second end of the first heat exchanger (9) is connected to the cooling tower (8) and the first end of the chiller (6) via the same pipe section.

7. The data center temperature control and waste heat recovery system according to any one of claims 1 to 5, characterized in that: The temperature control system comprises an evaporative heat pump (4), and the evaporative heat pump (4) is connected to the data center (12) via an eighth switch (K8).

8. The data center temperature control and waste heat recovery system according to any one of claims 1 to 5, characterized in that: The energy supply system comprises a hydroelectric generator set (1) and / or a photovoltaic generator set (2).

9. The data center temperature control and waste heat recovery system according to claim 8, characterized in that: The photovoltaic power generation set (2) is connected in parallel with the substation of the hydroelectric power generation set (1) via the energy storage device (3), and together they provide energy for the temperature control system.

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