Data center waste heat comprehensive gradient utilization energy system in science park

Abstract

The utility model relates to a data center waste heat comprehensive gradient utilization energy system in a science park. The technical problems that energy systems in an existing science park are mutually independent, the operation cost is high and the like are solved. Comprising a data center refrigerating system connected with a data center, the data center refrigerating system is connected with an industrial waste heat utilization system and a building waste heat utilization system in parallel through a waste heat recovery system, and the building waste heat utilization system is provided with any one or more combinations of a heating system, a domestic hot water system and a fresh air system. The data center refrigerating system and / or the building waste heat utilization system are / is connected with a redundant refrigerating system. The system has the advantages that heat exchange can be conducted on the data center through the heat dissipation assembly and the redundant refrigeration system, and stable operation of the data center is guaranteed. The redundant refrigeration system can stop refrigeration of the office building and turn to refrigeration of the data center in a non-refrigeration season or when a heat dissipation assembly breaks down, and stable operation of the data center is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy recovery, and in particular relates to a data center waste heat comprehensive cascade utilization energy system in a science and technology park. Background Art

[0002] As the core infrastructure of information technology, data centers mainly consume energy to maintain the operation of servers and other IT equipment and to ensure that these equipment work at a suitable temperature. Traditional data centers usually rely on air conditioning systems for cooling, which consumes a lot of electricity. Waste heat recovery technology has been used in the industrial field, but it has not been widely used in data centers. The energy consumption problem of buildings such as office buildings and factories is equally serious. Office buildings require continuous cooling and heating to ensure indoor comfort, while factories, especially those manufacturing processes that require high-temperature processes, have a huge demand for thermal energy. Traditionally, the energy supply of these buildings relies on external energy sources such as electricity, natural gas or steam, which not only increases operating costs but also aggravates the environmental burden.

[0003] Integrating waste heat recovery from data centers with energy needs in office buildings and factories faces technical and economic challenges. These challenges include the efficient collection, storage and distribution of waste heat, as well as the matching and conversion between different energy needs.

[0004] Existing technologies have limitations in the collection and conversion efficiency of waste heat in data centers. Waste heat is usually only used for low-level, small amounts of thermal energy needs, and has failed to achieve more extensive and efficient utilization. At the same time, in the past, the energy systems of different functional facilities in science and technology parks were independent, resulting in low thermal energy utilization rates of different energy systems, energy waste, and high operating costs. Summary of the invention

[0005] The purpose of the utility model is to provide a comprehensive cascade utilization energy system for waste heat of a data center in a science and technology park in order to solve the above problems.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a comprehensive cascade utilization energy system for waste heat of a data center in a science and technology park, including a data center refrigeration system connected to the data center, wherein the data center refrigeration system is connected in parallel with an industrial waste heat utilization system and a building waste heat utilization system through a waste heat recovery system, respectively, and the building waste heat utilization system has any one or more combinations of a heating system, a domestic hot water system and a fresh air system, and the data center refrigeration system and / or the building waste heat utilization system is connected to a redundant refrigeration system, through which when a heat dissipation component fails in a non-cooling season or at night, the building waste heat utilization system can be switched to the cooling water of the data center to provide refrigeration, thereby serving as a redundant refrigeration system to ensure the stable operation of the data center.

[0007] In the data center waste heat comprehensive cascade utilization energy system in the above-mentioned science and technology park, the data center refrigeration system includes IT equipment and heat exchangers arranged in the data center. The heat exchanger is connected to the heat dissipation component. The IT equipment will generate heat, and the heat dissipation component can use the heat exchanger to transfer cooling water to the IT equipment for heat exchange.

[0008] In the above-mentioned data center waste heat comprehensive cascade utilization energy system in the science and technology park, the heat dissipation component includes a first chiller connected to a heat exchanger, the first chiller is connected to a first cooling tower, and the heat exchanger is circulated between the first chiller and the first cooling tower, and the cooling water at 12°C exchanges heat with the heat exchanger through the first chiller. The temperature of the cooling water after the heat exchange is 18°C, and the cooling water at 18°C ​​flows through the first chiller to the first cooling tower to dissipate heat through the air source, and the cooling water at 12°C after heat dissipation continues to exchange heat with the heat exchanger through the first chiller, maintaining circulating heat dissipation and ensuring the heat dissipation effect.

[0009] In the comprehensive cascade utilization energy system of waste heat in the data center in the above-mentioned science and technology park, the waste heat recovery system includes two plate heat exchangers arranged in parallel between the heat exchanger and the first chiller, and the two plate heat exchangers are respectively an industrial waste heat utilization plate exchanger and a building waste heat utilization plate exchanger. The industrial waste heat utilization system is connected to the industrial waste heat utilization plate exchanger, and the building waste heat utilization system is connected to the building waste heat utilization plate exchanger. The heat energy is transferred to the industrial waste heat utilization plate exchanger for industrial production of the industrial waste heat utilization system, and the heat energy is secondly transferred to the building waste heat utilization plate exchanger for living needs of the building waste heat utilization system, which can improve the utilization rate of waste heat recovery and ensure the waste heat utilization effect.

[0010] In the comprehensive cascade utilization energy system of waste heat in the data center in the above-mentioned science and technology park, the industrial waste heat utilization system includes a high-temperature heat pump connected to the industrial waste heat utilization plate exchanger, and the high-temperature heat pump is connected to the industrial factory. The industrial waste heat utilization plate exchanger heats the cooling water at 18°C ​​after heat exchange into hot water at 17°C, and transmits the 17°C hot water to the high-temperature heat pump, and the high-temperature heat pump heats the hot water to 30°C to 80°C according to the needs of the industrial factory.

[0011] In the data center waste heat comprehensive cascade utilization energy system in the above-mentioned science and technology park, one end of the heating system, domestic hot water system and fresh air system are connected in parallel with the building waste heat utilization plate exchanger, and the other end of the heating system, domestic hot water system and fresh air system are connected to the office building. Through the building waste heat utilization plate exchanger, the hot water at 17°C after heat exchange can be transferred to the heating system, domestic hot water system and fresh air system respectively, thereby improving the energy distribution efficiency and waste heat utilization effect.

[0012] In the data center waste heat comprehensive cascade utilization energy system in the above-mentioned science and technology park, the heating system includes a winter heating heat pump connected to the building waste heat utilization plate exchanger, and the winter heating heat pump is connected to the fan coil installed in the office building. The winter heating heat pump raises the hot water to 50°C and heats the office building through the fan coil, ensuring long-term heating needs in the office building, reducing energy costs and protecting the environment.

[0013] In the data center waste heat comprehensive cascade utilization energy system in the above-mentioned science and technology park, the fresh air system includes a solution regeneration heat pump connected to the building waste heat utilization plate exchanger, and the solution regeneration heat pump is connected to the solution dehumidification fresh air fan in the office building. The solution regeneration heat pump heats the hot water that has passed through the building waste heat utilization plate exchanger to 70°C, and is used to dehumidify the office building through the solution dehumidification fresh air fan, thereby further improving the waste heat utilization efficiency and reducing the cost of heat energy use.

[0014] In the data center waste heat comprehensive cascade utilization energy system in the above-mentioned science and technology park, the domestic hot water system is a domestic hot water heat pump connected to the building waste heat utilization plate exchanger. The domestic hot water heat pump is connected to the office building. The domestic hot water heat pump heats the hot water after heat exchange through the building waste heat utilization plate exchanger to 60°C, which can facilitate the office building to use 60°C hot water throughout the year, improve user experience, increase waste heat utilization rate, and reduce thermal energy costs.

[0015] In the above-mentioned data center waste heat comprehensive cascade utilization energy system in the science and technology park, the redundant refrigeration system includes a second chiller, one end of the second chiller is connected to the second cooling tower, and the other end of the second chiller is connected to the fan coil and connected between the heat exchanger and the first chiller. Through the second cooling tower and the second chiller, 7°C cooling water can be transferred to the fan coil for cooling the office building, and the 12°C cooling water after cooling is transferred to the second cooling tower for circulating refrigeration, thereby ensuring the refrigeration effect and reducing the refrigeration cost. In addition, when it is not a refrigeration season or the heat dissipation component fails, the cooling of the office building can be stopped and turned to the cooling of the data center, thereby ensuring the stable operation of the data center.

[0016] Compared with the existing technology, the advantages of the utility model are:

[0017] 1. The data center can exchange heat through heat dissipation components and redundant refrigeration systems to ensure stable operation of the data center.

[0018] 2. The redundant refrigeration system can stop cooling the office building and switch to cooling the data center in the non-cooling season or when the heat dissipation component fails, ensuring the stable operation of the data center.

[0019] 3. The waste heat recovery system can improve the recovery and utilization of waste heat and the efficiency of thermal energy utilization. The industrial waste heat utilization system and the building waste heat utilization system can reduce the cost of thermal energy use and protect the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the industrial waste heat utilization system in the utility model.

[0022] Figure 3 It is a structural schematic diagram of the building waste heat utilization system in the utility model.

[0023] Figure 4 It is a structural schematic diagram of the redundant refrigeration system in the utility model.

[0024] In the figure: data center 1, data center refrigeration system 2, IT equipment 21, heat exchanger 22, waste heat recovery system 3, plate heat exchanger 31, industrial waste heat utilization plate exchanger 311, building waste heat utilization plate exchanger 312, industrial waste heat utilization system 4, high temperature heat pump 41, building waste heat utilization system 5, heating system 51, winter heating heat pump 511, fan coil 512, domestic hot water system 52, domestic hot water heat pump 521, fresh air system 53, solution regeneration heat pump 531, solution dehumidification fresh air fan 532, redundant refrigeration system 6, second chiller 61, second cooling tower 62, heat dissipation component 7, first chiller 71, first cooling tower 72, industrial factory 8, office building 9. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1 , Figure 3As shown, the comprehensive cascade utilization energy system of waste heat of the data center in the science and technology park includes a data center refrigeration system 2 connected to the data center 1. The data center refrigeration system 2 is connected in parallel with the industrial waste heat utilization system 4 and the building waste heat utilization system 5 through the waste heat recovery system 3, and the waste heat after heat exchange by the data center refrigeration system 2 is transferred to the industrial waste heat utilization system 4 and the building waste heat utilization system 5 respectively. The building waste heat utilization system 5 has any one or more combinations of a heating system 51, a domestic hot water system 52 and a fresh air system 53. The data center refrigeration system 2 and / or the building waste heat utilization system 5 are connected to a redundant refrigeration system 6. Through the redundant refrigeration system 6, when the heat dissipation component 7 fails in the non-refrigeration season or at night, the building waste heat utilization system 5 can be switched to the cooling water of the data center 1 to provide refrigeration, thereby ensuring the stable operation of the data center 1 as a redundant refrigeration system.

[0027] Specifically, the data center cooling system 2 includes IT equipment 21 and a heat exchanger 22 arranged in the data center 1. The heat exchanger 22 is connected to the heat dissipation component 7. The IT equipment 21 generates heat, and the heat dissipation component 7 can transfer cooling water to the IT equipment 21 through the heat exchanger 22 for heat exchange.

[0028] Among them, the heat dissipation component 7 includes a first chiller 71 connected to the heat exchanger 22, the first chiller 71 is connected to the first cooling tower 72, and the heat exchanger 22 is circulated between the first chiller 71 and the first cooling tower 72, and the cooling water at 12°C exchanges heat with the heat exchanger 22 through the first chiller 71. The temperature of the cooling water after the heat exchange is 18°C, and the cooling water at 18°C ​​flows through the first chiller 71 to the first cooling tower 72 to dissipate heat through the air source, and the cooling water at 12°C after heat dissipation continues to exchange heat with the heat exchanger 22 through the first chiller 71, maintaining circulating heat dissipation and ensuring the heat dissipation effect.

[0029] like Figure 1 , Figure 2 , Figure 3 As shown, the waste heat recovery system 3 includes two plate heat exchangers 31 arranged in parallel between the heat exchanger 22 and the first chiller 71. The waste heat recovery efficiency can be improved by the plate heat exchangers 31 arranged in parallel. The two plate heat exchangers 31 are respectively an industrial waste heat utilization plate exchanger 311 and a building waste heat utilization plate exchanger 312. The industrial waste heat utilization system 4 is connected to the industrial waste heat utilization plate exchanger 311, and the building waste heat utilization system 5 is connected to the building waste heat utilization plate exchanger 312. The heat energy is transferred to the industrial waste heat utilization plate exchanger 311 for industrial production of the industrial waste heat utilization system 4, and the heat energy is secondly transferred to the building waste heat utilization plate exchanger 312 for living needs of the building waste heat utilization system 5, which can improve the utilization rate of waste heat recovery and ensure the waste heat utilization effect.

[0030] Furthermore, the industrial waste heat utilization system 4 includes a high-temperature heat pump 41 connected to the industrial waste heat utilization plate exchanger 311, and the high-temperature heat pump 41 is connected to the industrial plant 8. The industrial waste heat utilization plate exchanger 311 heats the cooling water at 18°C ​​after heat exchange into hot water at 17°C, and transmits the hot water at 17°C to the high-temperature heat pump 41. The high-temperature heat pump 41 heats the hot water to 30°C to 80°C according to the needs of the industrial plant 8.

[0031] Among them, one end of the heating system 51, the domestic hot water system 52 and the fresh air system 53 are all connected in parallel with the building waste heat utilization plate exchanger 312, and the other ends of the heating system 51, the domestic hot water system 52 and the fresh air system 53 are all connected to the office building 9. Through the building waste heat utilization plate exchanger 312, the hot water at 17°C after heat exchange can be transferred to the heating system 51, the domestic hot water system 52 and the fresh air system 53 respectively, thereby improving the energy distribution efficiency and the waste heat utilization effect.

[0032] Combination Figure 1 , Figure 3 As shown, the heating system 51 includes a winter heating heat pump 511 connected to the building waste heat utilization plate exchanger 312. The winter heating heat pump 511 is connected to the fan coil 512 set in the office building 9. The winter heating heat pump 511 raises the hot water to 50°C and heats the office building 9 through the fan coil 512, thereby ensuring the long-term heating demand in the office building 9, reducing energy costs and protecting the environment.

[0033] Among them, the fresh air system 53 includes a solution regeneration heat pump 531 connected to the building waste heat utilization plate exchanger 312, and the solution regeneration heat pump 531 is connected to the solution dehumidification fresh air fan 532 in the office building 9. The solution regeneration heat pump 531 heats the hot water passing through the building waste heat utilization plate exchanger 312 to 70°C, and is used to dehumidify the office building 9 through the solution dehumidification fresh air fan 532, thereby further improving the waste heat utilization efficiency and reducing the cost of heat energy use.

[0034] Specifically, the domestic hot water system 52 is a domestic hot water heat pump 521 connected to the building waste heat utilization plate exchanger 312. The domestic hot water heat pump 521 is connected to the office building 9. The domestic hot water heat pump 521 heats the hot water after heat exchange through the building waste heat utilization plate exchanger 312 to 60°C, which can facilitate the office building 9 to use 60°C hot water throughout the year, improve user experience, improve waste heat utilization rate, and reduce thermal energy costs.

[0035] Combination Figure 4As shown, the redundant refrigeration system 6 includes a second chiller 61, one end of the second chiller 61 is connected to the second cooling tower 62, and the other end of the second chiller 61 is connected to the fan coil 512 and connected between the heat exchanger 22 and the first chiller 71. Through the second cooling tower 62 and the second chiller 61, cooling water at 7°C can be transferred to the fan coil 512 for cooling the office building 9, and the cooling water at 12°C after cooling is transferred to the second cooling tower 62 for circulating cooling, thereby ensuring the cooling effect and reducing the cooling cost. In addition, when it is not a cooling season or the heat dissipation component 7 fails, the cooling of the office building 9 can be stopped and the cooling of the data center 1 can be turned to ensure the stable operation of the data center 1.

[0036] The principle of this embodiment is: heat exchange and heat dissipation of the data center 1 are performed through the heat dissipation component 7 and the data center refrigeration system 2, and the waste heat after heat exchange of the data center refrigeration system 2 can be recovered through the waste heat recovery system 3, and the cooling water after heat exchange can be transmitted to the industrial waste heat utilization system 4 and the building waste heat utilization system 5 according to demand through the waste heat recovery system 3 for heating according to demand, thereby improving the waste heat utilization rate and reducing the cost of heat energy use, and the redundant refrigeration system 6 can cool the office building 9 through the fan coil 512, and when it is not a cooling season or the heat dissipation component 7 fails, the cooling of the office building 9 can be stopped and the cooling of the data center 1 can be turned to ensure the stable operation of the data center 1.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0038] Although this article uses more terms such as data center 1, data center cooling system 2, IT equipment 21, heat exchanger 22, waste heat recovery system 3, plate heat exchanger 31, industrial waste heat utilization plate exchanger 311, building waste heat utilization plate exchanger 312, industrial waste heat utilization system 4, high temperature heat pump 41, building waste heat utilization system 5, heating system 51, winter heating heat pump 511, fan coil 512, domestic hot water system 52, domestic hot water heat pump 521, fresh air system 53, liquid regeneration heat pump 531, liquid dehumidification fresh air fan 532, redundant refrigeration system 6, second chiller 61, second cooling tower 62, heat dissipation component 7, first chiller 71, first cooling tower 72, industrial plant 8, office building 9, etc., it does not exclude the possibility of using other terms. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A data center waste heat comprehensive cascade utilization energy system in a science and technology park, comprising a data center refrigeration system (2) connected to a data center (1), characterized in that: The data center refrigeration system (2) is connected in parallel with the industrial waste heat utilization system (4) and the building waste heat utilization system (5) through the waste heat recovery system (3). The building waste heat utilization system (5) has any one or more combinations of a heating system (51), a domestic hot water system (52) and a fresh air system (53). The data center refrigeration system (2) and / or the building waste heat utilization system (5) are connected to a redundant refrigeration system (6).

2. The data center waste heat comprehensive cascade utilization energy system in the science and technology park according to claim 1 is characterized in that: The data center refrigeration system (2) comprises IT equipment (21) and a heat exchanger (22) arranged in the data center (1); the heat exchanger (22) is connected to a heat dissipation component (7).

3. The data center waste heat comprehensive cascade utilization energy system in the science and technology park according to claim 2 is characterized in that: The heat dissipation component (7) comprises a first water chiller (71) connected to the heat exchanger (22), the first water chiller (71) is connected to a first cooling tower (72), and the heat exchanger (22) is cyclically connected to the first cooling tower (72) via the first water chiller (71).

4. The data center waste heat comprehensive cascade utilization energy system in the science and technology park according to claim 3 is characterized in that: The waste heat recovery system (3) comprises two plate heat exchangers (31) arranged in parallel between the heat exchanger (22) and the first chiller (71), the two plate heat exchangers (31) being respectively an industrial waste heat utilization plate exchanger (311) and a building waste heat utilization plate exchanger (312), the industrial waste heat utilization system (4) being connected to the industrial waste heat utilization plate exchanger (311), and the building waste heat utilization system (5) being connected to the building waste heat utilization plate exchanger (312).

5. The comprehensive cascade utilization energy system for waste heat of data centers in science and technology parks according to claim 4 is characterized in that: The industrial waste heat utilization system (4) comprises a high-temperature heat pump (41) connected to the industrial waste heat utilization plate exchanger (311), and the high-temperature heat pump (41) is connected to the industrial plant (8).

6. The data center waste heat comprehensive cascade utilization energy system in the science and technology park according to claim 4 or 5, characterized in that: One end of the heating system (51), domestic hot water system (52) and fresh air system (53) are connected in parallel to the building waste heat utilization plate exchanger (312), and the other end of the heating system (51), domestic hot water system (52) and fresh air system (53) are connected to the office building (9).

7. The data center waste heat comprehensive cascade utilization energy system in the science and technology park according to claim 6 is characterized in that: The heating system (51) comprises a winter heating heat pump (511) connected to a building waste heat utilization plate exchanger (312), and the winter heating heat pump (511) is connected to a fan coil unit (512) arranged in an office building (9).

8. The data center waste heat comprehensive cascade utilization energy system in the science and technology park according to claim 6 is characterized in that: The fresh air system (53) comprises a solution regeneration heat pump (531) connected to a building waste heat utilization plate exchanger (312), and the solution regeneration heat pump (531) is connected to a solution dehumidification fresh air fan (532) in the office building (9).

9. The data center waste heat comprehensive cascade utilization energy system in the science and technology park according to claim 6 is characterized in that: The domestic hot water system (52) is a domestic hot water heat pump (521) connected to a building waste heat utilization plate exchanger (312), and the domestic hot water heat pump (521) is connected to an office building (9).

10. The data center waste heat comprehensive cascade utilization energy system in the science and technology park according to claim 7, characterized in that: The redundant refrigeration system (6) comprises a second chiller (61), one end of the second chiller (61) is connected to a second cooling tower (62), and the other end of the second chiller (61) is connected to a fan coil unit (512) and is connected between a heat exchanger (22) and the first chiller (71).

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