CN115707208A - Waste heat recovery system of data center - Google Patents

Abstract

The invention discloses a waste heat recovery system of a data center, which comprises a data center and a cold water host, wherein the water outlet end of the cold water host is communicated to the data center, the water outlet end of the data center is communicated to a heat pump set, the water outlet end of the heat pump set is communicated to a heating radiator set, and the water outlet end of the heating radiator set is communicated to the water inlet end of the cold water host through a cooling tower. In the environment with lower air temperature in winter, the circulating water is cooled by the cooling tower to reach lower temperature, compared with natural cooling, the cooling effect is better, a cold water host does not need to be started for cooling, and the energy is saved; the cooling water generates warm water with higher temperature after being cooled in the data center, the warm water is introduced into the heating radiator set to supply heat for offices after reaching the heat pump set and being properly heated, the temperature of the warm water is reduced to a certain temperature through heat supply circulation, and the warm water is introduced into the cooling tower to be cooled, and the circulation is repeated.

Description

Waste heat recovery system of data center

Technical Field

The invention relates to the field of heat supply, in particular to a waste heat recovery system of a data center.

Background

In recent years, with the rapid development of novel technologies such as 5G mobile communication, internet, cloud computing, big data, internet of things, AR/VR, artificial intelligence and the like, the information processing capacity of a data center is larger and larger, the heat generated by the data center is also larger and larger, and the electric quantity required by refrigeration is larger and larger.

With the call of energy conservation and emission reduction, in winter or transition seasons, a refrigeration system of a data center is usually cooled naturally to reduce power consumption, but the refrigeration effect is poor; the heat generated by the data center is directly dissipated to the surrounding environment, and the part of heat cannot be effectively utilized; and a large amount of heat energy is needed in the office of the data center for heating, if office heat supply is carried out on the heat generated by the data center, the recovery of waste heat can be achieved, and the heating energy consumption of the office is greatly reduced. Accordingly, a new waste heat recovery system for a data center is needed.

Disclosure of Invention

In order to solve the problems in the prior art, an embodiment of the present invention provides a waste heat recovery system for a data center.

In order to achieve the purpose, the application provides a waste heat recovery system of a data center, which comprises a data center and a cold water host, wherein a water outlet end of the cold water host is communicated to the data center, a water outlet end of the data center is communicated to a heat pump set, a water outlet end of the heat pump set is communicated to a heating radiator set, and a water outlet end of the heating radiator set is communicated to a water inlet end of the cold water host through a cooling tower.

Furthermore, a pressure pump is arranged between the cooling tower and the cold water main machine.

Furthermore, a through pipe is connected between the water inlet end and the water outlet end of the water cooling host and the heat pump set, and switch valves are arranged on the water inlet end of the water cooling host and the heat pump set and on the through pipe.

Furthermore, the cooling tower comprises a cooling cylinder, a spraying pipe set and a cooling fan, wherein air inlets are formed in the periphery of the cooling cylinder, the spraying pipe set is located on the upper portion of the cooling cylinder, the cooling fan is arranged at the top of the cooling cylinder and exhausts air upwards, and a water outlet pipe is arranged at the bottom of the cooling cylinder.

Further, still be provided with cooling fin group in the cooling cylinder, cooling fin group is formed by a plurality of aluminum alloy plate parallel arrangements, cooling fin group's top is pressed close to the shower nest of tubes, cooling fin group's bottom is pressed close to the air intake.

Further, the cold water main machine and the heat pump set are powered by a solar power generation panel and/or a wind power generation set.

The waste heat system of the data center comprises the data center and the cold water main machine, wherein the water outlet end of the cold water main machine is communicated to the data center, the water outlet end of the data center is communicated to the heat pump group, the water outlet end of the heat pump group is communicated to the heating radiator group, and the water outlet end of the heating radiator group is communicated to the water inlet end of the cold water main machine through the cooling tower; the cooling water generates warm water with higher temperature after being cooled in the data center, the warm water is introduced into the heating radiator set to supply heat for offices after reaching the heat pump set and being properly heated, the temperature of the warm water is reduced to a certain temperature through heat supply circulation, and the warm water is introduced into the cooling tower to be cooled, and the circulation is repeated. The device does not need to start a cold water host machine to cool in winter, and waste heat is used for heating of offices, so that a heat pump unit does not need to directly heat cold water, power consumption is greatly reduced, and waste heat recycling is realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a waste heat recovery system of a data center according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a piping structure of the cold water main unit or the heat pump unit in fig. 1.

Fig. 3 is a schematic cross-sectional structure of the cooling tower of fig. 1.

Fig. 4 is a schematic structural diagram of the cooling sheet set in fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and do not limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may have other meanings besides orientation or position, for example, the term "on" may also have some dependency or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

"plurality" means two or more unless otherwise specified.

The invention is described in further detail below by means of specific embodiments and with reference to the attached drawings.

As shown in fig. 1 to fig. 4, the waste heat recovery system of the data center provided in this embodiment can be applied to places such as a data center room. The water outlet end of the cold water host 1100 is communicated into the data center 2000, the water outlet end of the data center 2000 is communicated to a heat pump set 1200, the water outlet end of the heat pump set 1200 is communicated to a heating radiator set 1300, and the water outlet end of the heating radiator set 1300 is communicated to the water inlet end of the cold water host 1100 through a cooling tower 1400.

By the scheme of the embodiment, in an environment with a low temperature in winter, circulating water is cooled by the cooling tower 1400 to reach a lower temperature (equivalent to an outdoor temperature), and compared with natural cooling in a pipeline and a cold water host machine, the cooling effect is better, the cold water host machine 1100 is not required to be started for cooling, and energy is saved; after the cooling water cools the data center 2000, warm water (about 20 degrees centigrade or more) with a relatively high temperature is generated, and after the water reaches the heat pump unit 1200 and is appropriately heated (about 40 degrees centigrade), the water is introduced into the radiator unit 1300 to supply heat to the office, and after the water temperature is reduced to a certain temperature (about 20 degrees centigrade or less) through the heat supply cycle, the water is introduced into the cooling tower 1400 to reduce the temperature, and the cycle is repeated. The device does not need to start the cold water host 1100 to cool in winter, and waste heat is used for heating of offices, so that the heat pump unit 1200 does not need to directly heat cold water, power consumption is greatly reduced, and waste heat recycling is realized.

In one embodiment, a pressure pump 1500 is disposed between the cooling tower 1400 and the main chilled water unit 1100. The pressurizing pump 1500 can pressurize the cooling water to prevent the water level in the cooling tower 1400 from being lowered and failing to flow into the cold water main unit 1100.

In one specific embodiment, a through pipe 1003 is connected between the water inlet end 1001 and the water outlet end 1002 of each of the cold water main unit 1100 and the heat pump set 1200, and the water inlet end 1001 and the through pipe 1003 of each of the cold water main unit 1100 and the heat pump set 1200 are respectively provided with a switch valve 1004, so that the cold water main unit 1100 and the heat pump set 1200 can be respectively cut off out of the system, thereby adapting to changes in summer or winter, namely, the cold water main unit 1100 is cut off from the system in winter without participating in water circulation; the heat pump unit 1200 is removed from the system in summer, so that the resistance of water circulation is reduced, and the circulation rate of circulating water is increased. .

In one embodiment, a straight pipe and a switch valve are also disposed on the radiator group 1300, so that the system can be conveniently cut off in summer, the resistance of water circulation is reduced, and the circulation rate of circulating water is increased.

In a specific embodiment, the cooling tower 1400 includes a cooling cylinder 1410, a spraying pipe set 1420 and a heat dissipating fan 1430, an air inlet 1411 is formed around the cooling cylinder 1410, the spraying pipe set 1420 is located on the upper portion of the cooling cylinder 1410, the heat dissipating fan 1430 is disposed on the top of the cooling cylinder 1410 and exhausts air upwards, and a water outlet pipe 1412 is disposed at the bottom of the cooling cylinder 1410.

The cooling tower 1400 is placed in an outdoor environment, the spraying pipe group 1420 sprays circulating water into the cooling cylinder 1410, air flow sucked by the cooling fan 1430 can cool the scattered water drops, and cold air flowing into the air inlets 1411 at the periphery can gather the water drops to the middle part to prevent the scattered water drops from spilling out of the cooling cylinder 1410; the sprayed water drops have larger surface area, so that the cooling efficiency can be improved.

In one embodiment, a cooling fin set 1440 is further disposed in cooling cylinder 1410, wherein cooling fin set 1440 is formed by aluminum alloy plates 1441 arranged in parallel, the top of cooling fin set 1440 is adjacent to shower group 1420, and the bottom of cooling fin set 1440 is adjacent to inlet 1411. The sprayed circulating water can be splashed onto cooling fin group 1440 for further cooling, and cooling fin group 1440 can evaporate water in the air flow and rapidly cool, so that the cooling effect is improved; the bottom of cooling fin group 1440 is near inlet 1411, allowing airflow to flow up the bottom of cooling fin group 1440, thereby accelerating cooling.

In one embodiment, the main cold water unit 1100 and the heat pump unit 1200 are powered by solar panels and/or wind turbine generators, using renewable energy, completely sufficient for the present system to be more energy efficient and cleaner.

The system has the technical effects that the system can recycle the waste heat of the data center to supply heat to offices, and compared with the method for directly heating cold water, the energy consumption is greatly reduced; the cooling tower in the system can cool the circulating water to the outdoor temperature, does not need a cold water host to start, and has better cooling effect compared with natural cooling.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. The utility model provides a data center's waste heat recovery system, includes data center and cold water host computer, the play water end intercommunication of cold water host computer to in the data center, its characterized in that, data center's play water end intercommunication to heat pump set, heat pump set's play water end intercommunication to heating radiator set, heating radiator set's play water end through the cooling tower intercommunication to the end of intaking of cold water host computer.

2. The waste heat recovery system of the data center according to claim 1, wherein a pressure pump is disposed between the cooling tower and the cold water main unit.

3. The waste heat recovery system of the data center according to claim 2, wherein a straight pipe is connected between the water inlet end and the water outlet end of the cold water main unit and the heat pump set, and the water inlet end and the straight pipe of the cold water main unit and the heat pump set are provided with switch valves.

4. The waste heat recovery system of the data center according to claim 1, wherein the cooling tower includes a cooling cylinder, a spraying pipe set and a heat dissipation fan, air inlets are formed around the cooling cylinder, the spraying pipe set is located at the upper portion of the cooling cylinder, the heat dissipation fan is arranged at the top of the cooling cylinder and exhausts air upwards, and a water outlet pipe is arranged at the bottom of the cooling cylinder.

5. The waste heat recovery system of the data center according to claim 4, wherein a cooling fin group is further arranged in the cooling cylinder, the cooling fin group is formed by arranging a plurality of aluminum alloy plates in parallel, the top of the cooling fin group is close to the spray pipe group, and the bottom of the cooling fin group is close to the air inlet.

6. The waste heat recovery system of the data center of claim 1, wherein the cold water main and the heat pump group are powered by a solar panel and/or a wind turbine.

Images