US20190120531A1

US20190120531A1 - Energy supply system recycling data center waste heat and data center

Info

Publication number: US20190120531A1
Application number: US16/133,837
Authority: US
Inventors: Zhiming LUO; Tianyu Zhou; Binghua ZHANG
Original assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Current assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Priority date: 2017-10-25
Filing date: 2018-09-18
Publication date: 2019-04-25
Also published as: CN107741104A

Abstract

An energy supply system recycling data center waste heat comprises: a cooling system recycling data center waste heat, the cooling system recycling a high-temperature coolant outputted by a data center, and transferring heat of the high-temperature coolant to an absorption refrigerator using a heat exchanger, to enable the absorption refrigerator to absorb the heat of the high-temperature coolant and make the heat into cold for cooling a to-be-cooled apparatus; and a heat supply system recycling data center waste heat, the heat supply system recycling the high-temperature coolant outputted by the data center, and transferring the heat of the high-temperature coolant to a to-be-heated apparatus using the heat exchanger; where the data center comprises a plurality of liquid cooled cabinets, the liquid cooled cabinets absorbing heat of the data center to generate the high-temperature coolant.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 201711007870.1, filed on Oct. 25, 2017, titled “Energy Supply System Recycling Data Center Waste Heat and Data Center,” which is hereby incorporated by reference in its entirety.

TECHNICAL FIELD

Embodiments of the disclosure relate to the field of energy saving technology, and in particular to an energy supply system recycling data center waste heat and a data center.

BACKGROUND

In recent years, with the brisk development of the information-based society, large scale server clusters, such as various Internet data centers, and cloud computing data centers, have also swiftly progressed, accompanied by the rapid increase of the energy consumption of the data centers. The energy consumption of the data centers has many aspects, the energy consumption of the air-conditioning systems, according to the statistics, occupies about one third of the overall energy consumption.
At present, the air conditioning system of the data centers usually discharge the heat generated by the electronic devices into air using liquid or air cooling, which causes the energy consumption increase and environmental pollution. Although there are methods for recycling heat from the data centers at present, however, the utilization of the heat recycled from the data centers is generally limited to the following solutions: one is to use waste heat of the data centers for heat supply to office buildings with the help of heat pump systems in winter; and the second is to use high-temperature return water for heating outdoor pipes to protect the outdoor pipes from being frozen in winter.

SUMMARY

An object of embodiments of the disclosure includes providing an energy supply system recycling data center waste heat and a data center.
In a first aspect, an energy supply system recycling data center waste heat is provided according to an embodiment of the disclosure. The system includes: a cooling system recycling data center waste heat, the cooling system recycling a high-temperature coolant outputted by a data center, and transferring heat of the high-temperature coolant to an absorption refrigerator using a heat exchanger, to enable the absorption refrigerator to absorb the heat of the high-temperature coolant and make the heat into cold for cooling a to-be-cooled apparatus; and a heat supply system recycling data center waste heat, the heat supply system recycling the high-temperature coolant outputted by the data center, and transferring the heat of the high-temperature coolant to a to-be-heated apparatus using the heat exchanger; where the data center includes a plurality of liquid cooled cabinets, the liquid cooled cabinets absorbing heat generated by electronic devices in the data center to generate the high-temperature coolant.
In some embodiments, the heat exchanger includes a first liquid inlet and a first liquid outlet; the first liquid inlet is connected with an outlet for the high-temperature coolant of the data center, to input the high-temperature coolant; and the first liquid outlet outputs a low-temperature coolant to the data center, to enable the liquid cooled cabinets to absorb the heat generated by the electronic devices in the data center using the low-temperature coolant.
In some embodiments, the heat exchanger further includes a second liquid inlet and a second liquid outlet; and in the cooling system recycling data center waste heat, the heat exchanger forms a first circulation loop with a generator of the absorption refrigerator via the second liquid inlet and the second liquid outlet, to enable the heat exchanger to provide the heat for the absorption refrigerator.
In some embodiments, the heat supply system recycling data center waste heat further includes a cooling tower; an absorber of the absorption refrigerator forms a second circulation loop with the cooling tower, and a condenser of the absorption refrigerator forms a third circulation loop with the cooling tower, to enable the cooling tower to provide cooling water for the absorber and the condenser; and an evaporator of the absorption refrigerator forms a fourth circulation loop with the to-be-cooled apparatus, to enable the absorption refrigerator to provide the cold for the to-be-cooled apparatus.
In some embodiments, the cooling system recycling data center waste heat further includes an auxiliary heater; and the auxiliary heater is connected between the second liquid outlet of the heat exchanger and the generator of the absorption refrigerator, for heating a liquid outputted from the second liquid outlet to a preset temperature.
In some embodiments, the system further includes a first water pump, a second water pump and a third water pump, where the first water pump is used for driving the high-temperature coolant outputted by the data center to flow to the heat exchanger; the second water pump is used for driving a cold fluid outputted from the second liquid outlet of the heat exchanger to flow to the absorption refrigerator or the to-be-heated apparatus; and the third water pump is used for driving cooling water outputted from the absorber and the condenser of the absorption refrigerator to flow to the cooling tower.
In some embodiments, the heat exchanger further includes a second liquid inlet and a second liquid outlet; and in the heat supply system recycling data center waste heat, the heat exchanger forms a fifth circulation loop with the to-be-heated apparatus via the second liquid inlet and the second liquid outlet, to enable the second liquid outlet to output a cold fluid providing heat for the to-be-heated apparatus.
In some embodiments, the heat exchanger includes a plate heat exchanger.
In some embodiments, the absorption refrigerator includes a lithium bromide absorption refrigerator.
In a second aspect, a data center, including the energy supply system recycling data center waste heat, is provided according to an embodiment of the disclosure.
The embodiments of the disclosure provide the energy supply system recycling data center waste heat and a data center. The data center includes a liquid cooled cabinet for cooling electronic devices. The cooling system recycling data center waste heat may transfer heat of a high-temperature coolant outputted by the data center to an absorption refrigerator using a heat exchanger. The absorption refrigerator may absorb the heat of the data center to produce a low-temperature coolant, and provide cold for a to-be-cooled apparatus. The heat supply system recycling data center waste heat may transfer the heat of the high-temperature coolant outputted by the data center to a to-be-heated apparatus using the heat exchanger, thereby realizing recycling data center waste heat for cooling or heating whilst meeting the needs of the data center for heat dissipation, and improving the energy utilization.

BRIEF DESCRIPTION OF THE DRAWINGS

By reading detailed description on the non-limiting embodiments with reference to the following accompanying drawings, other features, objects and advantages of the disclosure will become more apparent:

FIG. 1A shows a structural schematic diagram of an energy supply system recycling data center waste heat according to an embodiment of the disclosure;

FIG. 1B shows a structural schematic diagram of a cooling system recycling data center waste heat in FIG. 1A;

FIG. 1C shows a structural schematic diagram of a heat supply system recycling data center waste heat in FIG. 1A;

FIG. 2A shows a structural schematic diagram of a cooling system recycling data center waste heat of an energy supply system recycling data center waste heat according to another embodiment of the disclosure;

FIG. 2B shows a structural schematic diagram of a heat supply system recycling data center waste heat of an energy supply system recycling data center waste heat according to another embodiment of the disclosure; and

FIG. 2C shows a structural schematic diagram of an absorption refrigerator in FIG. 2A.

DETAILED DESCRIPTION OF EMBODIMENTS

The disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. As may be appreciated, the embodiments described here are only used for illustrating the disclosure, rather than limiting the disclosure. Furthermore, it should also be noted that only the parts associated with the disclosure are shown in the accompanying drawings, to facilitate description.
It should be noted that the embodiments and features of the embodiments according to the disclosure may be mutually combined in case of no conflict. The disclosure will be described in detail below by referring to the accompanying drawings and in conjunction with the embodiments.
Reference is made to FIG. 1A, which shows a structural schematic diagram of an energy supply system recycling data center waste heat according to an embodiment of the disclosure. As shown in FIG. 1 A, an energy supply system 100 recycling data center waste heat according to the embodiment may include a cooling system 110 recycling data center waste heat and a heat supply system 120 recycling data center waste heat. Here, the cooling system 110 recycling data center waste heat in FIG. 1A specifically may be as shown in FIG. 1B. The cooling system 110 recycling data center waste heat may include liquid cooled cabinets 101 of the data center, a heat exchanger 102, an absorption refrigerator 103 and a to-be-cooled apparatus 104. Here, the heat supply system 120 recycling data center waste heat in FIG. 1A may be as shown in FIG. 1C. The heat supply system 120 recycling data center waste heat may include liquid cooled cabinets 101 of the data center, the heat exchanger 102, and a to-be-heated apparatus 105.
In the embodiment, the data center may be generally provided with a plurality of liquid cooled cabinets 101. Electronic devices, such as a computer and a control panel, in the data center may be arranged in the liquid cooled cabinets 101, to enable liquid cooling ends of the liquid cooled cabinets 101 to absorb heat generated by a CPU, a GPU and the like in the electronic devices. Temperature of the coolant in the liquid-cooled cabinet 101 may be increased accordingly after absorbing heat, to generate a high-temperature coolant, and the formed high-temperature coolant is outputted by the output end of the high-temperature coolant of the data center, thereby realizing cooling the electronic devices in the data center. As may be appreciated, the liquid cooling ends of the liquid cooled cabinets 101 may be arranged in the proximity of the CPU, GPU and the like in the electronic devices, thereby enabling the liquid cooled cabinets to cool the electronic devices in close proximity, and improve the PUE (power usage effectiveness) value of the data center. The cooling system 110 recycling data center waste heat may recycle a high-temperature coolant outputted by the data center, and transfer heat of the high-temperature coolant to the absorption refrigerator 103 using the heat exchanger 102. Moreover, the absorption refrigerator 103 may absorb the heat of the high-temperature coolant to make a low-temperature coolant. The low-temperature coolant may provide cold for the to-be-cooled apparatus 104 to reduce the temperature of to-be-cooled apparatus 104.
Specifically, when the cooling system 110 recycling data center waste heat is running, the high-temperature coolant generated by the liquid cooled cabinets 101 in the data center may be outputted to the heat exchanger 102. The heat exchanger 102 transfers heat in the high-temperature coolant to the cold fluid side by heat exchange, thereby resulting in temperature rise of the cold fluid, outputting the cold fluid with increased temperature to the absorption refrigerator 103, and enabling the absorption refrigerator 103 to absorb heat from the inputted cold fluid, and cool the to-be-cooled apparatus 104 using the absorbed heat. For example, the to-be-cooled apparatus 104 may be a cooling system of buildings, such as an office building. The low-temperature coolant formed by the absorption refrigerator 103 may be outputted to the cooling system of office buildings, thereby realizing reutilizing waste heat recycled from the data center for providing cold for office buildings whilst meeting the needs of the data center for heat dissipation, and improving the energy utilization.
Generally, a data center computer room may be provided with a variety of liquid cooled cabinets, such as a server liquid-cooled cabinet, a network liquid cooled cabinet, and a control panel liquid cooled cabinet. Articles, such as a computer and an associated control device may be stored in the liquid cooled cabinets 101. The liquid cooled cabinets 101 not only play a role in heat dissipation, but also may play a role in protecting the stored devices, shielding electromagnetic interference, and orderly and neatly arranging the devices, to facilitate future maintenance of the devices. Furthermore, the coolant for cooling the CPU and the GPU in the liquid cooled cabinets 101 may be deionized water, ethanol or the like, thereby avoiding electronic device failure caused by coolant leakage.
In the embodiment, for the high-temperature coolant outputted by the liquid cooled cabinets 101 in the data center, the heat supply system 120 recycling data center waste heat may also recycle the high-temperature coolant outputted by the data center. Then the heat exchanger 102 in the heat supply system 120 recycling data center waste heat may transfer the heat of the high-temperature coolant outputted by the data center to the to-be-heated apparatus 105 by heat exchange, thereby resulting in temperature rise of the to-be-heated apparatus 105.
Specifically, when the heat supply system 120 recycling data center waste heat is running, the high-temperature coolant generated by the liquid cooled cabinets 101 in the data center may be outputted to the heat exchanger 102. The heat exchanger 102 transfers the heat in the high-temperature coolant to the cold fluid side by heat exchange, thereby resulting in temperature rise of the cold fluid, outputting the cold fluid with increased temperature to the to-be-heated apparatus 105, and resulting in temperature rise of the to-be-heated apparatus 105. For example, the to-be-heated apparatus 105 may be a heating system of buildings, such as an office building. The high-temperature cold fluid outputted from the heat exchanger 102 may be outputted to the heating pipes of buildings, such as an office building, thereby realizing reutilizing waste heat recycled from the data center for providing heat supply for office buildings whilst meeting the needs of the data center for heat dissipation, and improving the energy utilization.
The above embodiments of the disclosure provide the energy supply system 100 recycling data center waste heat, where the cooling system 110 recycling data center waste heat may recycle a high-temperature coolant generated by the liquid cooled cabinets 101 after absorbing heat, the heat exchanger 102 may transfer heat in the high-temperature coolant to the absorption refrigerator 103, and the absorption refrigerator 103 may produce a low-temperature coolant using the heat for cooling the to-be-cooled apparatus 104; and the heat supply system 120 recycling data center waste heat may recycle waste heat of the data center, and transfer the waste heat to the to-be-heated apparatus 105 using the heat exchanger 102, thereby realizing recycling the waste heat from the liquid cooled cabinets in the data center for cooling or heating, and improving the energy utilization.
Referring to FIG. 2A and FIG. 2B, FIG. 2A shows a structural schematic diagram of a cooling system recycling data center waste heat of an energy supply system recycling data center waste heat according to an embodiment of the disclosure, and FIG. 2B shows a structural schematic diagram of a heat supply system recycling data center waste heat of an energy supply system recycling data center waste heat according to an embodiment of the disclosure. As shown in FIG. 2A, the cooling system 210 recycling data center waste heat according to the embodiment may include liquid cooled cabinets 201, a heat exchanger 202, an absorption refrigerator 203, a to-be-cooled apparatus 204, a cooling tower 206 and an auxiliary heater 207. As shown in FIG. 2B, the heat supply system 220 recycling data center waste heat according to the embodiment may include liquid cooled cabinets 201, a heat exchanger 202, and a to-be-heated apparatus 205.
In the embodiment, the heat exchanger 202 may include a first liquid inlet A and a first liquid outlet B. As shown in FIG. 2A, the first liquid inlet A may be connected with an output end C of a high-temperature coolant generated by the liquid cooled cabinets 201 in the data center, thereby enabling the high-temperature coolant outputted from the liquid cooled cabinets 201 to be inputted to the first liquid inlet A of the heat exchanger 202. After acquiring the high-temperature coolant, the heat exchanger 202 may transfer heat of the high-temperature coolant to a cold fluid by heat exchange, enabling the high-temperature coolant to generate a low-temperature coolant after temperature reduction. Moreover, the low-temperature coolant may be outputted from the first liquid outlet B of the heat exchanger 202 to the data center. The liquid cooled cabinets 201 in the data center may receive the low-temperature coolant via a port D, and the heat generated by the electronic devices in the data center is absorbed again using the low-temperature coolant.
Furthermore, the heat exchanger 202 may further include a second liquid inlet E and a second liquid outlet F, as shown in FIG. 2 A. The heat exchanger 202 is generally an indirect heat exchanger, such as a plate heat exchanger. Therefore, in the heat exchanger 202, the liquid between inlet A and outlet B only exchanges heat with but is not connected with the liquid between inlet E and outlet F. The absorption refrigerator 203 may include a generator 2031, an absorber 2032, a condenser 2033, an evaporator 2034, and the like, as shown in FIG. 2C. In the cooling system 210 recycling data center waste heat, the heat exchanger 202 may form a first circulation loop with the generator 2031 of the absorption refrigerator 203 via the second liquid inlet E and the second liquid outlet F, as shown in FIG. 2A. A port F of the heat exchanger 202 may output a high-temperature cold fluid to a port A′ of the absorption refrigerator 203, thereby enabling the heat exchanger 202 to provide required heat for the absorption refrigerator 203. As may be appreciated, the generator 2031 of the absorption refrigerator 203 needs more heat, and when the high-temperature cold fluid outputted from the port F of the heat exchanger 202 provides insufficient heat, it is necessary to start the auxiliary heater 207 to heat the high-temperature cold fluid outputted from the port F, to enable the heated high-temperature cold fluid to reach a preset temperature, thereby enabling the absorption refrigerator 203 to acquire enough heat. The generator 2031 absorbs heat from the high-temperature cold fluid, which may enable the temperature of the cold fluid to be reduced and enable the cold fluid to be outputted from a port B′ to a port E of the second inlet of the heat exchanger 202. Therefore, the port E of the second inlet of the heat exchanger 202 may continue to provide a cold fluid absorbing heat of the high-temperature coolant for the heat exchanger 202. The absorption refrigerator 203 generally may achieve the goal of cooling using the characteristic of a solution having strong absorption of vapors of low-boiling components therein. The working fluid used within the absorption refrigerator 203 may be a working fluid pair including a low-boiling substance and a high-boiling substance, where the low-boiling substance may be used as a refrigerant, and the high-boiling substance may be used as an absorbent. For example, the absorption refrigerator 203 may be a lithium bromide absorption refrigerator, where water may be used as the refrigerant, and lithium bromide may be used as the absorbent; or the absorption refrigerator 203 may be an aqueous ammonia solution absorption refrigerator, where ammonia may be used as the refrigerant, and water may be used as the absorbent.
Taking the lithium bromide absorption refrigerator as an example below, FIG. 2C shows a structural schematic diagram of a lithium bromide absorption refrigerator. As shown in FIG. 2C, when the absorption refrigerator 203 is running, the lithium bromide solution at a low concentration in the generator 2031 is heated, water in the solution is evaporated, and the solution is concentrated into a concentrated solution. The concentrated solution may be sent to the absorber 2032, and water vapor may enter the condenser 2033 to be condensed into a coolant water. After depressurized, the coolant water may be evaporated in the evaporator 2034 by absorbing heat to produce cold, and then absorbed by the solution in the absorber 2032. Finally, the absorption refrigerator 203 may provide the produced cold to the to-be-cooled apparatus 204, thereby realizing the goal of producing cold for the to-be-cooled apparatus 204 using the heat generated by the data center. Specifically, when heat exchanger 202 outputs a high-temperature cold fluid from the port A′ to the generator 2031, a water solution of lithium bromide in the generator 2031 is heated, enabling water in the water solution of lithium bromide to be continuously vaporized. With the continuous vaporization of water, the concentration of the water solution of lithium bromide in the generator 2031 is continuously increased, the water solution of lithium bromide enters the absorber 2032, and the water vapor enters the condenser 2033. The temperature of the high-temperature cold fluid is reduced, and the high-temperature cold fluid is outputted into the heat exchanger 202 via the port B′ again. The absorber 2032 may form a second circulation loop with the cooling tower 206, and the condenser 2033 may form a third circulation loop with the cooling tower 206, thereby enabling the cooling tower 206 to provide cooling water for the absorber 2032 and the condenser 2033 via a port F′. The water solution of lithium bromide at a high concentration entering the absorber 2032 may be cooled, and the water vapor entering the condenser 2033 may be condensed into low-temperature and high-pressure liquid water after cooling by the cooling water. The temperature of the cooling water is increased, and the cooling water is outputted to the cooling tower 206 again via a port E′. Then, the low-temperature and high-pressure liquid water in the condenser 2033 may enter the evaporator 2034. The water from the condenser 2033 rapidly expands and vaporizes when entering the evaporator 2034, and absorbs large amounts of heat of refrigerants in the evaporator 2034 during vaporization, resulting in cold. The cold produced by the evaporator 2034 may provide the cold to the to-be-cooled apparatus 204 using a fourth circulation loop formed by the evaporator 2034 and the to-be-cooled apparatus 204, thus achieving the goal of cooling the to-be-cooled apparatus 204. Cold generated by the to-be-cooled apparatus 204 may be outputted into the to-be-cooled apparatus 204 through a port D′, and heat in the to-be-cooled apparatus 204 may be outputted again into the evaporator 2034 via a port C′, thereby enabling the lithium bromide absorption refrigerator to continuously provide the cold for the to-be-cooled apparatus 204. During this process, low-temperature water vapor enters the absorber 2032, and is absorbed by the water solution of lithium bromide in the absorber 2032. The solution concentration is gradually reduced, and then the solution is sent back to the generator 2031 to complete the whole cycle, where a solution pump and a refrigerant pump in the absorption refrigerator 203 may provide a force for the cycle. Thus, it can be seen that the absorption refrigerator 203 may continuously provide the cold for the to-be-cooled apparatus 204. The diluted solution of lithium bromide is cooled in the absorber, and is at a low temperature. Therefore, in order to save heat for heating the diluted solution, and improve the thermal efficiency of the whole apparatus, a heat exchanger is additionally provided in the system for heat exchange between high-temperature concentrated solution flowing from the generator 2031 and low-temperature diluted solution flowing from the absorber 2032 to improve the temperature of the diluted solution entering the generator 2031, and further improve the energy utilization.
In the embodiment, identical to the cooling system 210 recycling data center waste heat, in the heat supply system 220 recycling data center waste heat, the heat exchanger 202 may include a first liquid inlet A, a first liquid outlet B, a second liquid inlet E and a second liquid outlet F, as shown in FIG. 2B. The first liquid inlet A may be connected with an outlet C of a high-temperature coolant generated by the liquid cooled cabinets 201 in the data center, thereby enabling the high-temperature coolant outputted from the liquid cooled cabinets 201 to be inputted to the first liquid inlet A of the heat exchanger 202. After acquiring the high-temperature coolant, the heat exchanger 202 may transfer heat of the high-temperature coolant to a cold fluid by heat exchange, enabling the high-temperature coolant to generate a low-temperature coolant after temperature reduction. Moreover, the low-temperature coolant may be outputted from the first liquid outlet B of the heat exchanger 202 to the data center. The liquid cooled cabinets 201 in the data center may receive the low-temperature coolant via a port D, and absorb the heat generated by the electronic devices in the data center again using the low-temperature coolant. The heat exchanger 202 may form a fifth circulation loop with the to-be-heated apparatus 205 via the second liquid inlet E and the second liquid outlet F, thereby enabling the heat exchanger 202 to output a high-temperature cold fluid outputted from the second fluid outlet F to the to-be-heated apparatus 205 via the fifth circulation loop, and enabling the heat exchanger 202 to provide the heat for the to-be-heated apparatus 205. The temperature of the high-temperature cold fluid is reduced after providing heat for the to-be-heated apparatus 205, and the cold fluid after temperature reduction may be outputted to the end E of the heat exchanger 202, to enable the cold fluid to absorb the heat of the high-temperature coolant inputted from the end A again. The heat supply system 220 recycling data center waste heat may directly recycle the heat generated by the data center for heating the to-be-heated apparatus to improve the energy utilization.
As may be appreciated, the cooling system 210 recycling data center waste heat and the heat supply system 220 recycling data center waste heat usually operate in different time, namely the energy supply system recycling data center waste heat may operate in a cooling mode or in a heating mode. For example, in summer, the energy supply system recycling data center waste heat may operate in the cooling mode, and the cooling system 210 recycling data center waste heat may provide cold for buildings such as an office building; and in winter, the energy supply system recycling data center waste heat may operate in the heating mode, and the heat supply system 220 recycling data center waste heat may provide heat for buildings such as an office building. Therefore, the heat exchanger 202 may be controlled by a three-way valve to be connected with the absorption refrigerator 203 when providing cold, and connected with the to-be-heated apparatus 205 when providing heat.
In some optional implementations of the embodiment, the cooling system 210 recycling data center waste heat may further include a first water pump 1, a second water pump 2 and a third water pump 3, as shown in FIG. 2A. Here, the first water pump 1 may be arranged between the liquid cooled cabinet 201 and the heat exchanger 202. When the pressure of the high-temperature coolant outputted from the liquid cooled cabinet 201 is insufficient, the first water pump 1 may provide a force for the high-temperature coolant outputted from the liquid cooled cabinet 201, to drive the high-temperature coolant outputted from the liquid cooled cabinet 201 to flow to the heat exchanger 202. Specifically, the first water pump 1 may drive the high-temperature coolant outputted from the port C of the liquid cooled cabinet 201 to flow to the heat exchanger 202, thereby enabling the high-temperature coolant to be inputted into the port A of the heat exchanger 202. The second water pump 2 may be arranged at the output end of the high-temperature cold fluid of the heat exchanger 202. When the pressure of the high-temperature cold fluid inputted into the absorption refrigerator 203 is insufficient, the second water pump 2 may provide a force for the high-temperature cold fluid, to drive the high-temperature cold fluid to be outputted to the absorption refrigerator 203. The third water pump 3 may be arranged between the absorption refrigerator 203 and the cooling tower 206. When the pressure of the cold fluid outputted from the absorption refrigerator 203 is insufficient, the third water pump 3 may drive cooling water outputted from the absorber and the condenser of the absorption refrigerator 203 to flow to the cooling tower 206. When the cooling tower 206 is running, a liquid outputted from the port E′ of the absorption refrigerator 203 may be sprayed onto the surface of a heat dissipation material. An evaporating water vapor is formed between the liquid and cold air due to heat exchange, thereby enabling the heat of the liquid to be discharged into air. Cooled liquid falls into a sink, and may be transferred to the absorption refrigerator 203 by pumping, to enable the liquid to absorb heat again. As may be appreciated, when the auxiliary heater 207 is arranged in the cooling system 210 recycling data center waste heat, the second water pump 2 may alternatively be arranged between the auxiliary heater 207 and the absorption refrigerator 203, thereby driving the high-temperature cold fluid heated by the auxiliary heater 207 to flow to the absorption refrigerator 203.
In some optional implementations of the embodiment, the heat supply system 220 recycling data center waste heat may also include a first water pump 1 and a second water pump 2. Likewise, the first water pump 1 may be arranged between the liquid cooled cabinet 201 and the heat exchanger 202. When the pressure of the high-temperature coolant outputted from the liquid cooled cabinet 201 is insufficient, the first water pump 1 may provide a force for the high-temperature coolant outputted from the liquid cooled cabinet 201, to drive the high-temperature coolant outputted from the liquid cooled cabinet 201 to flow to the heat exchanger 202. The second water pump 2 may be arranged at the output end of the high-temperature cold fluid of the heat exchanger 202. When the pressure of the high-temperature cold fluid inputted into the to-be-heated apparatus 205 is insufficient, the second water pump 2 may provide a force for the high-temperature cold fluid, to drive the high-temperature cold fluid to be outputted into the to-be-heated apparatus 205.
Furthermore, a data center is provided according to embodiments of the disclosure. The data center may include the energy supply system recycling data center waste heat in the above embodiments. The structure and function of the energy supply system recycling data center waste heat are the same as the above embodiments, and are not repeated any more here.
The above description only provides an explanation of the preferred embodiments of the present disclosure and the technical principles used. It should be appreciated by those skilled in the art that the inventive scope of the present disclosure is not limited to the technical solutions formed by the particular combinations of the above-described technical features. The inventive scope should also cover other technical solutions formed by any combinations of the above-described technical features or equivalent features thereof without departing from the concept of the disclosure. Technical schemes formed by the above-described features being interchanged with, but not limited to, technical features with similar functions disclosed in the present disclosure are examples.

Claims

What is claimed is:

1. An energy supply system recycling data center waste heat, comprising:

a cooling system recycling data center waste heat, the cooling system recycling a high-temperature coolant outputted by a data center, and transferring heat of the high-temperature coolant to an absorption refrigerator using a heat exchanger, to enable the absorption refrigerator to absorb the heat of the high-temperature coolant and make the heat into cold for cooling a to-be-cooled apparatus; and

a heat supply system recycling data center waste heat, the heat supply system recycling the high-temperature coolant outputted by the data center, and transferring the heat of the high-temperature coolant to a to-be-heated apparatus using the heat exchanger;

wherein the data center comprises a plurality of liquid cooled cabinets, the liquid cooled cabinets absorbing heat generated by electronic devices in the data center to generate the high-temperature coolant.

2. The system according to claim 1, wherein the heat exchanger comprises a first liquid inlet and a first liquid outlet;

the first liquid inlet is connected with an outlet for the high-temperature coolant of the data center, to input the high-temperature coolant; and

the first liquid outlet outputs a low-temperature coolant to the data center, to enable the liquid cooled cabinets to absorb the heat generated by the electronic devices in the data center using the low-temperature coolant.

3. The system according to claim 2, wherein the heat exchanger further comprises a second liquid inlet and a second liquid outlet; and

in the cooling system recycling data center waste heat, the heat exchanger forms a first circulation loop with a generator of the absorption refrigerator via the second liquid inlet and the second liquid outlet, to enable the heat exchanger to provide the heat for the absorption refrigerator.

4. The system according to claim 1, wherein the heat supply system recycling data center waste heat further comprises a cooling tower;

an absorber of the absorption refrigerator forms a second circulation loop with the cooling tower, and a condenser of the absorption refrigerator forms a third circulation loop with the cooling tower, to enable the cooling tower to provide cooling water for the absorber and the condenser; and

an evaporator of the absorption refrigerator forms a fourth circulation loop with the to-be-cooled apparatus, to enable the absorption refrigerator to provide the cold for the to-be-cooled apparatus.

5. The system according to claim 3, wherein the cooling system recycling data center waste heat further comprises an auxiliary heater; and

the auxiliary heater is connected between the second liquid outlet of the heat exchanger and the generator of the absorption refrigerator, for heating a liquid outputted from the second liquid outlet to a preset temperature.

6. The system according to claim 1, further comprising a first water pump, a second water pump and a third water pump; wherein

the first water pump is used for driving the high-temperature coolant outputted by the data center to flow to the heat exchanger;

the second water pump is used for driving a cold fluid outputted from the second liquid outlet of the heat exchanger to flow to the absorption refrigerator or the to-be-heated apparatus; and

the third water pump is used for driving cooling water outputted from the absorber and the condenser of the absorption refrigerator to flow to the cooling tower.

7. The system according to claim 2, wherein the heat exchanger further comprises a second liquid inlet and a second liquid outlet; and

in the heat supply system recycling data center waste heat, the heat exchanger forms a fifth circulation loop with the to-be-heated apparatus via the second liquid inlet and the second liquid outlet, to enable the second liquid outlet to output a cold fluid providing heat for the to-be-heated apparatus.

8. The system according to claim 1, wherein the heat exchanger comprises a plate heat exchanger.

9. The system according to claim 1, wherein the absorption refrigerator comprises a lithium bromide absorption refrigerator.

10. A data center, comprising an energy supply system recycling data center waste heat, comprising: