A data center and pumped storage power station joint operation system and method

Abstract

The present invention provides a data center and a pumped storage power station joint operation system and method, comprising an upper reservoir, a lower reservoir, a data center and a pumped storage power station; wherein an air conditioning system is installed inside the data center; the air conditioning system comprises a heat exchange station, a hybrid heat exchanger and an air conditioning terminal. It has the following advantages: 1. Energy saving and consumption reduction: utilizing natural low-temperature water sources, greatly reducing the power consumption of the data center cooling system. 2. Improving efficiency: through an efficient heat exchange system, significantly improving the cooling efficiency of the data center. 3. Reducing costs: reducing the use of electricity and the maintenance cost of air conditioning equipment, and reducing the operating cost of the data center. 4. Environmentally friendly: reducing power consumption, reducing carbon emissions, and being more environmentally friendly. 5. Reducing initial investment: utilizing natural cold sources, the data center saves the refrigeration and air conditioning system, reducing initial investment; the pumped storage power station provides UPS function for the data center, further reducing initial investment.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy conservation, and in particular relates to a data center and a pumped storage power station combined operation system and method. Background Art

[0002] With the rapid development of information technology, data centers have become an indispensable infrastructure in modern society. Servers and other electronic equipment inside data centers generate a lot of heat during operation, so an effective cooling system is needed to maintain the normal operating temperature of the equipment. Traditional cooling systems use refrigeration and air-conditioning equipment that relies on electric drive, which mainly has the following problems: 1. High energy consumption: Traditional data center air-conditioning systems rely on electric drive and consume huge energy, accounting for about 40% of the energy consumption of the entire data center. 2. Low efficiency: The load of the data center has obvious volatility, and the peak and valley heat loads differ greatly. When running at high load and low load, the efficiency of the traditional air-conditioning system is significantly reduced. 3. Environmental impact: The extensive use of electric-driven air-conditioning systems increases carbon emissions and has a negative impact on the environment. Conventional air conditioners use cooling towers for cooling and consume a lot of water. 4. High operating costs: The high energy consumption of the air-conditioning system leads to a significant increase in operating costs. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides a data center and pumped storage power station joint operation system and method, which can effectively solve the above problems.

[0004] The technical solution adopted by the present invention is as follows:

[0005] The present invention provides a data center and pumped storage power station joint operation system, comprising an upper reservoir (1), a lower reservoir (2), a data center (3) and a pumped storage power station (4); wherein an air conditioning system (5) is installed inside the data center (3);

[0006] The pumped storage power station (4) is arranged between the upper reservoir (1) and the lower reservoir (2); the data center (3) is located between the upper reservoir (1) and the pumped storage power station (4), so that the data center (3) is arranged on the upstream side of the pumped storage power station (4) and the downstream side of the upper reservoir (1);

[0007] The drainage end of the upper reservoir (1) is connected to the water inlet end of the air conditioning system (5) of the data center (3) through a water pipe (6); after heat exchange in the air conditioning system (5), the drainage end of the air conditioning system (5) is connected to the water inlet end of the pumped storage power station (4) through a first drainage pipe (7); the pumped storage power station (4) generates electricity using gravitational potential energy, and its power supply cable (8) is connected to the data center (3) to supply power to the data center (3); after the pumped storage power station (4) generates electricity, its drainage end is connected to the lower reservoir (2) through a second drainage pipe (9).

[0008] Preferably, a water pump (10) is installed at the drainage end of the upper reservoir (1); the water outlet end of the water pump (10) is connected to the water inlet of the water pipe (6).

[0009] Preferably, a filter (11) is installed at a position of the water pipe (6) close to the data center (3).

[0010] Preferably, the air conditioning system (5) comprises a heat exchange station (5-1), a hybrid heat exchanger (5-2) and an air conditioning terminal (5-3);

[0011] The cold source inlet of the heat exchange station (5-1) is connected to the water outlet of the water delivery pipe (6); the cold source outlet of the heat exchange station (5-1) is connected to the water inlet of the first drainage pipe (7), forming a cold source side liquid circulation loop of the heat exchange station (5-1);

[0012] The cold water inlet pipe (5-2-1) of the hybrid heat exchanger (5-2) is connected to the heat source outlet of the heat exchange station (5-1), and the cold water return pipe (5-2-2) of the hybrid heat exchanger (5-2) is connected to the heat source inlet of the heat exchange station (5-1), forming a cold water circulation loop between the hybrid heat exchanger (5-2) and the heat exchange station (5-1);

[0013] The coolant outlet of the hybrid heat exchanger (5-2) is connected to the coolant inlet of the air conditioning terminal (5-3) through the coolant down pipe (5-2-3), and the coolant outlet of the air conditioning terminal (5-3) is connected to the coolant inlet of the hybrid heat exchanger (5-2) through the coolant up pipe (5-2-4), forming a coolant circulation loop.

[0014] Preferably, the heat exchange station (5-1), the hybrid heat exchanger (5-2) and the air conditioning terminal (5-3) form an air conditioning unit; and the air conditioning system (5) is equipped with a plurality of sets of the air conditioning units in parallel.

[0015] Preferably, the hybrid heat exchanger (5-2) comprises the cold water inlet pipe (5-2-1), the cold water return pipe (5-2-2), the coolant downcomer (5-2-3) and the coolant upcomer (5-2-4), and also comprises a hybrid heat exchanger shell (5-2-5), a first porous medium (5-2-6) and a second porous medium (5-2-7);

[0016] The hybrid heat exchanger (5-2) is arranged directly above the air conditioning terminal (5-3); the inner cavity of the hybrid heat exchanger shell (5-2-5) is fixedly installed with the first porous medium (5-2-6) and the second porous medium (5-2-7) at different heights; wherein the first porous medium (5-2-6) is located above the second porous medium (5-2-7), and through the separation effect of the first porous medium (5-2-6) and the second porous medium (5-2-7), the inner cavity of the hybrid heat exchanger shell (5-2-5) is divided into five layers from top to bottom, namely, a water layer (I), a porous stratosphere (II), a hybrid heat exchange layer (III), a porous bubble crushing layer (IV) and an electronic cooling layer (IV). liquid layer (V); wherein: the water layer (I) is the area formed between the top surface of the first porous medium (5-2-6) and the top of the hybrid heat exchanger shell (5-2-5); the porous stratosphere (II) is the area formed inside the first porous medium (5-2-6) itself; the hybrid heat exchange layer (III) is the area formed between the bottom surface of the first porous medium (5-2-6) and the top surface of the second porous medium (5-2-7); the porous bubble crushing layer (IV) is the area formed inside the second porous medium (5-2-7) itself; the electronic cooling liquid layer (V) is the area formed between the bottom surface of the second porous medium (5-2-7) and the bottom of the hybrid heat exchanger shell (5-2-5);

[0017] One side of the mixed heat exchange layer (III) is connected to the cold water inlet pipe (5-2-1); the other side of the water layer (I) is connected to the cold water return pipe (5-2-2); one side of the electronic cooling liquid layer (V) is connected to the liquid inlet end of the cooling liquid down pipe (5-2-3); and the other side of the electronic cooling liquid layer (V) is connected to the liquid outlet end of the cooling liquid up pipe (5-2-4).

[0018] Preferably, the coolant is electronic coolant, which is immiscible or slightly soluble in water, has a density greater than water, and a boiling point lower than water.

[0019] Preferably, the pore size of the first porous medium (5-2-6) is smaller than the pore size of the second porous medium (5-2-7).

[0020] The present invention also provides a method for jointly operating a data center and a pumped storage power station, comprising the following steps:

[0021] Step S1, low-temperature water in the upper reservoir (1) reaches the filter (11) through the water pipe (6); after being filtered by the filter (11), it flows into the air conditioning system (5) installed in the data center (3);

[0022] Step S2, the low-temperature water in the reservoir is used as a cold source to perform heat exchange with the air conditioning system (5); after the heat exchange, the low-temperature water in the reservoir becomes medium-high temperature water and flows into the pumped storage power station (4) along the first drainage pipe (7) under the action of gravity;

[0023] The air conditioning system (5) cools the data center under the action of low-temperature water from the reservoir;

[0024] Step S3, the pumped storage power station (4) generates electricity using the gravitational potential energy of water, and supplies the electricity to the data center (3) along the power supply cable (8), thereby providing power supply for the data center (3);

[0025] Step S4, after the pumped storage power station (4) generates electricity using the gravitational potential energy of water, the water flows into the lower reservoir (2) along the second drainage pipe (9).

[0026] Preferably, in step S2, the air conditioning system (5) cools the data center under the action of low-temperature water from the reservoir, specifically:

[0027] Step S2.1, initially, the hybrid heat exchanger (5-2) contains low-temperature electronic coolant, and the initial liquid level of the low-temperature electronic coolant reaches the middle of the hybrid heat exchange layer (III), that is, the electronic coolant layer (V), the porous bubble crushing layer (IV) and the area below the middle of the hybrid heat exchange layer (III) are all filled with low-temperature electronic coolant;

[0028] Since the density of low-temperature water is less than that of low-temperature electronic coolant, low-temperature water and low-temperature electronic coolant are immiscible or slightly soluble, therefore, cold water flows into the mixed heat exchange layer (III) through the cold water inlet pipe (5-2-1), the cold water temperature is T1, and the cold water is located above the low-temperature electronic coolant;

[0029] Step S2.2, the temperature of the low-temperature electronic coolant in the electronic coolant layer (V) of the hybrid heat exchanger (5-2) is the same as the cold water temperature T1; the low-temperature electronic coolant flows into the air conditioning terminal (5-3) through the coolant downcomer (5-2-3), and after absorbing the heat of the data center (3), the temperature rises and the density decreases, forming a high-temperature electronic coolant with a temperature of T2; therefore, the high-temperature electronic coolant rises along the coolant upcomer (5-2-4) and flows into the electronic coolant layer (V) of the hybrid heat exchanger (5-2), exchanging heat with the original low-temperature electronic coolant in the electronic coolant layer (V);

[0030] Among them, since the newly-flown high-temperature electronic coolant has an upward flow velocity, therefore, in the process of flowing through the electronic coolant layer (V), if it can be completely cooled to the cold water temperature T1 by the original low-temperature electronic coolant, the newly-flown high-temperature electronic coolant and the original low-temperature electronic coolant are completely mixed, and flow into the air-conditioning terminal (5-3) through the coolant downcomer (5-2-3), forming a cycle; if it cannot be completely cooled to the cold water temperature T1 by the original electronic coolant, the high-temperature electronic coolant continues to rise, passes through the porous bubble crushing layer (IV) and then flows into the mixed heat exchange layer (III); wherein, if the high-temperature electronic coolant is in the form of bubbles when entering the porous bubble crushing layer (IV), it is divided into small bubbles by the porous bubble crushing layer (IV) and then flows into the mixed heat exchange layer (III); if the high-temperature electronic coolant is in the form of liquid when entering the porous bubble crushing layer (IV), it directly passes through the porous bubble crushing layer (IV) and then flows into the mixed heat exchange layer (III);

[0031] Step S2.3, the high-temperature electronic coolant flows into the mixed heat exchange layer (III), exchanges heat with the cold water flowing into the mixed heat exchange layer (III), and the high-temperature electronic coolant is cooled or condensed to become the low-temperature electronic coolant, and the density increases. Therefore, it passes downward through the porous bubble crushing layer (IV) and flows into the electronic coolant layer (V), and then flows into the air conditioning terminal (5-3) through the coolant downcomer (5-2-3) for heat exchange;

[0032] After the cold water flowing into the mixed heat exchange layer (III) exchanges heat with the high-temperature electronic coolant, its temperature increases and its density decreases. Therefore, it carries a small amount of electronic coolant and flows upward. When flowing through the porous stratosphere (II), the cold water and the small amount of electronic coolant carried are completely separated, so that the electronic coolant flows downward, passes through the mixed heat exchange layer (III) and the porous bubble crushing layer (IV), and then flows into the electronic coolant layer (V); the cold water flows upward into the water layer (I);

[0033] The reason why the porous stratosphere (II) separates cold water and electronic coolant is that a small amount of electronic coolant carried into the porous stratosphere (II) is completely separated from the cold water and electronic coolant due to the high density and gravity, and the porous disturbance in the porous stratosphere (II);

[0034] Step S2.4, in the process of flowing through the mixed heat exchange layer (III) and the porous stratosphere (II), the cold water fully contacts and exchanges heat with the electronic coolant. Therefore, the cold water flowing into the water layer (I) has absorbed heat, and then flows into the heat exchange station (5-1) through the cold water return pipe (5-2-2), and exchanges heat with the low-temperature water in the reservoir; after cooling, it forms cold water again, and then flows back to the mixed heat exchanger (5-2) from the cold water inlet pipe (5-2-1), thereby forming a cold water circuit.

[0035] The data center and pumped storage power station combined operation system and method provided by the present invention have the following advantages:

[0036] 1. Energy saving and consumption reduction: Utilize natural low-temperature water sources to significantly reduce the power consumption of the data center cooling system.

[0037] 2. Improve efficiency: Through an efficient heat exchange system, the cooling efficiency of the data center can be significantly improved.

[0038] 3. Reduce costs: Reduce electricity usage and maintenance costs of air-conditioning equipment, and reduce the operating costs of data centers.

[0039] 4. Environmentally friendly: Reduce electricity consumption, reduce carbon emissions, and be more environmentally friendly.

[0040] 5. Reduce initial investment: By utilizing natural cooling sources, the data center saves the refrigeration and air-conditioning system, reducing initial investment; the pumped storage power station provides UPS function for the data center, further reducing initial investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A schematic diagram of the structure of the data center and pumped storage power station joint operation system provided by the present invention;

[0042] Figure 2 A schematic diagram of the structural principle of the data center and pumped storage power station joint operation system provided by the present invention;

[0043] Figure 3 This is a structural connection diagram of the internal hybrid heat exchanger and air conditioning terminal of the data center provided by the present invention. DETAILED DESCRIPTION

[0044] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0045] The present invention provides a data center and a pumped storage power station joint operation system and method, which utilizes the natural cold source cold water at the bottom of the pumped storage power station to provide a cold source for the data center to meet the data center air conditioning cooling needs; at the same time, the pumped storage power station provides a backup power supply for the data center. Since the natural cold source at the bottom of the pumped storage power station is maintained at 8-14°C all year round, the data center air conditioning cooling needs can be met all year round, which reduces the energy consumption of the air conditioning system on the one hand; on the other hand, the data center does not need to build a steam compression refrigeration air conditioning system, reducing the investment cost of the data center; in addition, the pumped storage power station provides a backup power supply function for the data center, and the data center does not need to be equipped with a UPS, reducing the investment in the data center.

[0046] Since the deep water at the bottom of the pumped storage power station is not exposed to sunlight for a long time and has a relatively low temperature, the present invention makes full use of its cold source. Figure 1 to Figure 3 The present invention provides a data center and pumped storage power station joint operation system, comprising an upper reservoir 1, a lower reservoir 2, a data center 3 and a pumped storage power station 4; wherein an air conditioning system 5 is installed inside the data center 3;

[0047] A pumped storage power station 4 is set between the upper reservoir 1 and the lower reservoir 2; a data center 3 is set between the upper reservoir 1 and the pumped storage power station 4, so the data center 3 is arranged on the upstream side of the pumped storage power station 4 and the downstream side of the upper reservoir 1;

[0048] The drainage end of the upper reservoir 1 is connected to the water inlet end of the air conditioning system 5 of the data center 3 through the water pipe 6. After heat exchange in the air conditioning system 5, the water is connected to the water inlet end of the pumped storage power station 4 from the drainage end of the air conditioning system 5 through the first drainage pipe 7. As a specific structure, a pump 10 is installed at the drainage end of the upper reservoir 1; the water outlet end of the pump 10 is connected to the water inlet of the water pipe 6. A filter 11 is installed at a position of the water pipe 6 close to the data center 3.

[0049] The pumped storage power station 4 generates electricity using gravitational potential energy, and its power supply cable 8 is connected to the data center 3 to supply power to the data center 3; after the pumped storage power station 4 generates electricity, its drainage end is connected to the lower reservoir 2 through the second drainage pipe 9.

[0050] In the present invention, the air conditioning system 5 includes a heat exchange station 5-1, a hybrid heat exchanger 5-2 and an air conditioning terminal 5-3; wherein the heat exchange station 5-1, the hybrid heat exchanger 5-2 and the air conditioning terminal 5-3 form an air conditioning unit; the air conditioning system 5 installs multiple air conditioning units in parallel.

[0051] The cold source inlet of the heat exchange station 5-1 is connected to the water outlet of the water delivery pipe 6; the cold source outlet of the heat exchange station 5-1 is connected to the water inlet of the first drain pipe 7, forming a cold source side liquid circulation loop of the heat exchange station 5-1;

[0052] The cold water inlet pipe 5-2-1 of the hybrid heat exchanger 5-2 is connected to the heat source outlet of the heat exchange station 5-1, and the cold water return pipe 5-2-2 of the hybrid heat exchanger 5-2 is connected to the heat source inlet of the heat exchange station 5-1, forming a cold water circulation loop between the hybrid heat exchanger 5-2 and the heat exchange station 5-1;

[0053] The coolant outlet of the hybrid heat exchanger 5-2 is connected to the coolant inlet of the air conditioning terminal 5-3 through the coolant downpipe 5-2-3, and the coolant outlet of the air conditioning terminal 5-3 is connected to the coolant inlet of the hybrid heat exchanger 5-2 through the coolant uppipe 5-2-4, forming a coolant circulation loop.

[0054] See also Figure 3 The present invention also designs a hybrid heat exchanger with a new structure, which has the advantage of high heat exchange efficiency. The hybrid heat exchanger 5-2 includes a cold water inlet pipe 5-2-1, a cold water return pipe 5-2-2, a coolant down pipe 5-2-3 and a coolant up pipe 5-2-4, and also includes a hybrid heat exchanger shell 5-2-5, a first porous medium 5-2-6 and a second porous medium 5-2-7;

[0055] The hybrid heat exchanger 5-2 is arranged directly above the air conditioning terminal 5-3; the inner cavity of the hybrid heat exchanger shell 5-2-5 is fixedly installed with the first porous medium 5-2-6 and the second porous medium 5-2-7 at different heights; wherein the first porous medium 5-2-6 is located above the second porous medium 5-2-7, and through the separation effect of the first porous medium 5-2-6 and the second porous medium 5-2-7, the inner cavity of the hybrid heat exchanger shell 5-2-5 is divided into five layers from top to bottom, namely, water layer I, porous stratosphere II, hybrid heat exchange layer III, porous bubble crushing layer IV and electric Sub-cooling liquid layer V; wherein: water layer I is the area formed between the top surface of the first porous medium 5-2-6 and the top of the hybrid heat exchanger shell 5-2-5; porous stratosphere II is the area formed inside the first porous medium 5-2-6 itself; hybrid heat exchange layer III is the area formed between the bottom surface of the first porous medium 5-2-6 and the top surface of the second porous medium 5-2-7; porous bubble crushing layer IV is the area formed inside the second porous medium 5-2-7 itself; electronic cooling liquid layer V is the area formed between the bottom surface of the second porous medium 5-2-7 and the bottom of the hybrid heat exchanger shell 5-2-5;

[0056] One side of the mixed heat exchange layer III is connected to the cold water inlet pipe 5-2-1; the other side of the water layer I is connected to the cold water return pipe 5-2-2; one side of the electronic coolant layer V is connected to the liquid inlet end of the coolant down pipe 5-2-3; the other side of the electronic coolant layer V is connected to the liquid outlet end of the coolant up pipe 5-2-4.

[0057] In the present invention, the coolant is electronic coolant, which is immiscible or slightly soluble in water, has a density greater than water, and a boiling point lower than water. The pore size of the first porous medium 5-2-6 is smaller than the pore size of the second porous medium 5-2-7.

[0058] The present invention also provides a method for jointly operating a data center and a pumped storage power station, comprising the following steps:

[0059] Step S1, the low-temperature water in the upper reservoir 1 can reach the filter 11 through the water pipe 6 under the action of the pump 10; after being filtered by the filter 11, it flows into the air conditioning system 5 installed in the data center 3;

[0060] Step S2, the low-temperature water in the reservoir is used as a cold source to perform heat exchange with the air conditioning system 5; after the heat exchange, the low-temperature water in the reservoir becomes medium-high temperature water, and flows into the pumped storage power station 4 along the first drainage pipe 7 under the action of gravity; the air conditioning system 5 cools the data center under the action of the low-temperature water in the reservoir;

[0061] Specifically, the air conditioning system 5 is arranged with multiple sets of heat exchange stations 5-1, hybrid heat exchangers 5-2 and air conditioning terminals 5-3 to form air conditioning units.

[0062] Therefore, the low-temperature water of the reservoir reaches the cold water inlet of each heat exchanger 5-1 through multiple branches, and performs heat exchange with the return water of the hybrid heat exchanger 5-2 in the heat exchanger 5-1. After being cooled, the return water of the hybrid heat exchanger 5-2 returns to the hybrid heat exchanger 5-2 along the cold water inlet pipe 5-2-1 to continue heat exchange. The low-temperature water of the reservoir becomes medium-high temperature water and is transported to the pumped storage power station 4 along the first drainage pipe 7;

[0063] Step S3, the pumped storage power station 4 generates electricity using the gravitational potential energy of water, and supplies the electricity to the data center 3 along the power supply cable 8, thereby providing power to the data center 3;

[0064] The data center 3 only utilizes water as a cold source and still has gravitational potential energy, so a first drainage pipe 7 is led to a pumped storage power station 4 on the way, and the gravitational potential energy is used to generate electricity, which is then supplied to the data center 3 along a cable to provide power for the data center 3.

[0065] Step S4 , after the pumped storage power station 4 generates electricity using the gravitational potential energy of water, the water flows into the lower reservoir 2 along the second drainage pipe 9 .

[0066] In step S2, the air conditioning system 5 cools the data center under the action of low-temperature water from the reservoir, specifically:

[0067] Step S2.1, initially, the hybrid heat exchanger 5-2 contains low-temperature electronic coolant, and the initial liquid level of the low-temperature electronic coolant reaches the middle of the hybrid heat exchange layer III, that is, the electronic coolant layer V, the porous bubble crushing layer IV and the area below the middle of the hybrid heat exchange layer III are all filled with low-temperature electronic coolant;

[0068] Since the density of low-temperature water is less than that of low-temperature electronic coolant, low-temperature water and low-temperature electronic coolant are immiscible or slightly soluble, therefore, cold water flows into the mixed heat exchange layer III through the cold water inlet pipe 5-2-1, and the cold water temperature is T1, for example, 20 degrees, and the cold water is located above the low-temperature electronic coolant; the mixed heat exchange layer III reserves 10% of the height space to balance the pressure change and liquid level change of the internal electronic coolant after boiling;

[0069] Step S2.2, the temperature of the low-temperature electronic coolant in the electronic coolant layer V of the hybrid heat exchanger 5-2 is the same as the cold water temperature T1; the low-temperature electronic coolant flows into the air conditioning terminal 5-3 through the coolant downcomer 5-2-3, and after absorbing the heat of the data center 3, the temperature rises and the density decreases, or it directly boils and becomes gaseous, forming a high-temperature electronic coolant with a temperature of T2, for example, 30 degrees; therefore, the high-temperature electronic coolant rises along the coolant upcomer 5-2-4 and flows into the electronic coolant layer V of the hybrid heat exchanger 5-2, exchanging heat with the original low-temperature electronic coolant in the electronic coolant layer V;

[0070] Among them, since the newly-flown high-temperature electronic coolant has an upward flow velocity, therefore, in the process of flowing through the electronic coolant layer V, if it can be completely cooled to the cold water temperature T1 by the original low-temperature electronic coolant, the newly-flown high-temperature electronic coolant and the original low-temperature electronic coolant are completely mixed, and flow into the air-conditioning terminal 5-3 through the coolant downcomer 5-2-3 to form a cycle; if it cannot be completely cooled to the cold water temperature T1 by the original electronic coolant, the high-temperature electronic coolant continues to rise, passes through the porous bubble crushing layer IV and flows into the mixed heat exchange layer III; among them, if the high-temperature electronic coolant is a bubble when entering the porous bubble crushing layer IV, it is divided into small bubbles by the porous bubble crushing layer IV and then flows into the mixed heat exchange layer III; if the high-temperature electronic coolant is a liquid when entering the porous bubble crushing layer IV, it directly passes through the porous bubble crushing layer IV and flows into the mixed heat exchange layer III;

[0071] Step S2.3, the high-temperature electronic coolant flows into the mixed heat exchange layer III, exchanges heat with the cold water flowing into the mixed heat exchange layer III, and the high-temperature electronic coolant is cooled or condensed to become low-temperature electronic coolant, and the density increases. Therefore, it passes downward through the porous bubble crushing layer IV and flows into the electronic coolant layer V, and then flows into the air conditioning terminal 5-3 through the coolant downcomer 5-2-3 for heat exchange;

[0072] After the cold water flowing into the mixed heat exchange layer III exchanges heat with the high-temperature electronic coolant, its temperature increases and its density decreases. Therefore, it carries a small amount of electronic coolant and flows upward. When flowing through the porous stratosphere II, the cold water and the small amount of electronic coolant carried are completely separated, so that the electronic coolant flows downward, passes through the mixed heat exchange layer III and the porous bubble crushing layer IV, and flows into the electronic coolant layer V; the cold water flows upward into the water layer I;

[0073] The reason why the porous stratosphere II separates cold water and electronic coolant is that a small amount of electronic coolant carried into the porous stratosphere II is completely separated from the cold water and electronic coolant due to the high density and gravity, and the porous disturbance in the porous stratosphere II.

[0074] Step S2.4, in the process of flowing through the mixed heat exchange layer III and the porous stratosphere II, the cold water fully contacts and exchanges heat with the electronic coolant. Therefore, the cold water flowing into the water layer I has absorbed heat, and after passing through the porous stratosphere II, the speed and fluctuation become smaller, and then flows into the heat exchange station 5-1 through the cold water return pipe 5-2-2 to exchange heat with the low-temperature water in the reservoir; after cooling, it forms cold water again, and then flows back to the mixed heat exchanger 5-2 from the cold water inlet pipe 5-2-1, thereby forming a cold water loop.

[0075] As an embodiment, the specific scheme of the present invention is as follows:

[0076] 1. System composition: The system includes an upper reservoir 1, a lower reservoir 2, a data center 3 and a pumped storage power station 4 of a pumped storage power station; wherein an air conditioning system 5 is installed inside the data center 3; the air conditioning system 5 includes a heat exchange station 5-1, a hybrid heat exchanger 5-2 and an air conditioning terminal 5-3; the entire system can be controlled by a control system.

[0077] (1) Upper reservoir 1: provides deep low-temperature cold storage water.

[0078] (2) Data Center 3: Object to be cooled.

[0079] (3) Heat exchange station 5 - 1 : realizes heat exchange between the low-temperature water in the upper reservoir 1 and the cooling system of the data center 3 .

[0080] (4) Hybrid heat exchanger 5-2: exchanges heat with the air conditioning terminal 5-3. The hybrid heat exchanger 5-2 has two working media, water and electronic coolant. The electronic coolant is immiscible or slightly soluble in water, has a density greater than water, and a boiling point lower than water. Since the electronic coolant has a higher density than water, it mainly participates in the heat dissipation of the air conditioning terminal 5-3 at the bottom, and the electronic coolant level is in the middle of the hybrid heat exchange layer III when stationary. Water has a low density and is located in the upper part of the hybrid heat exchange layer III. A 10% height space is reserved to balance the pressure change and liquid level change after the internal electronic coolant boils, such as Figure 3 shown.

[0081] (5) Pipeline system: connecting the upper reservoir 1, the heat exchange station 5-1, the data center 3, the pumped storage power station 4 and the lower reservoir 2.

[0082] (6) Control system: adjust water flow and temperature to ensure efficient operation of the system.

[0083] (7) Air conditioning terminal 5-3: adjusts temperature, humidity and air flow distribution. The air conditioning terminal 5-3 can be an air-cooled heat exchanger terminal, such as an air-cooled back plate, an air-cooled fin heat exchanger, or a liquid-cooled terminal.

[0084] (8) Pumped storage power station 4 can be a small hydroelectric power station that uses gravitational potential energy to generate electricity.

[0085] 2. The joint operation method of the data center and the pumped storage power station, the specific steps are as follows:

[0086] The water pump 10 extracts low-temperature water from the deep layer of the upper reservoir 1, and uses the gravitational potential energy to enter the heat exchange station 5-1 of the air conditioning system 5 of the data center 3 through the water pipe 6. In the heat exchange station 5-1, the low-temperature water cools the return water transported from the computer room of the data center 3, and then the cold water pump sends the cooled cold water back to the data room. In the data room, the cold water cools the air, and then the low-temperature air is sucked into the equipment for heat dissipation.

[0087] After heat exchange at the heat exchange station 5-1, the low-temperature water from the upper reservoir is discharged downward to the lower reservoir 2 through the first drainage pipe 7. A branch is led in the middle of the first drainage pipe 7 to the pumped storage power station 4, which generates electricity for the data center 3.

[0088] The system's Data Center 3 significantly reduced power consumption, improved cooling efficiency, reduced operating costs, and substantially cut carbon emissions, achieving a win-win situation in both economic and environmental benefits.

[0089] In addition, there are two other options: taking water from the upper reservoir and draining the water, and taking water from the lower reservoir and draining the water.

[0090] The present invention provides a data center and pumped storage power station joint operation system and method, which has the following characteristics:

[0091] 1. Utilization of low-temperature water as a natural cooling source: Using the deep low-temperature water in the upper reservoir of the pumped storage power station as the natural cooling source of the data center air conditioning system does not require additional power consumption. Moreover, the natural cooling source meets the cooling source needs of the data center all year round, and the data center does not need to build a steam compression refrigeration and air conditioning system, thereby reducing investment.

[0092] 2. Heat exchange efficiency: Achieve efficient heat exchange in the heat exchange station to improve cooling effect.

[0093] 3. Application of gravity potential energy: Utilize the height difference between the upper reservoir, data center and lower reservoir, and use gravity potential energy to drive the cold water to flow, effectively reducing the power loss caused by the water pump. In addition, branches can be set in the drainage pipes to carry out small-scale hydropower generation to further compensate for the power loss.

[0094] 4. Intelligent control: Intelligent adjustment of water flow and temperature is achieved through the control system to ensure efficient operation of the system under different loads.

[0095] 5. Pumped storage power stations provide backup power support for data centers, which can save UPS equipment.

[0096] 6. The energy consumption of data centers fluctuates greatly, and its peaks and troughs are related to user data interaction, which will burden the power grid. Pumped storage power stations can be used to supply power to reduce the impact of power grid fluctuations.

[0097] 7. Application of hybrid heat exchanger: This heat exchanger makes full use of the density difference and boiling point difference between water and coolant. When the heat flux density is high, the coolant can boil, increase the heat transfer coefficient, strengthen the heat exchange with electronic devices, and facilitate the temperature control of electronic devices. Moreover, the two are in direct contact for heat exchange, and the bubbles are broken by the porous medium, so that the contact area between the two is larger and the heat exchange is more sufficient.

[0098] Pumped-storage power stations are built in high-energy-consuming areas of North China, East China and Southeast China to provide peak-shaving and valley-filling and power security functions for the power grid. The high-energy-consuming areas of North China, East China and Southeast China are also areas with large demand for data centers and high construction density. The joint planning and construction of data centers and pumped storage is more meaningful than "East Data West Calculation". It can reduce investment and operating costs and data transmission costs, which is of great significance to infrastructure planning and construction. Data centers and pumped-storage power stations have perfect combination properties. Pumped-storage power stations provide data centers with natural cold sources and power supply guarantees, greatly reducing investment and energy consumption in data centers. Even in the northwest region where the ambient temperature is low, in summer, data centers still need refrigeration and air-conditioning equipment for cooling, that is, natural cold sources cannot meet the needs of data centers all year round, and the present invention can effectively solve this problem.

[0099] The data center and pumped storage power station combined operation system and method provided by the present invention have the following advantages:

[0100] 1. Energy saving and consumption reduction: Utilize natural low-temperature water sources to significantly reduce the power consumption of the data center cooling system.

[0101] 2. Improve efficiency: Through an efficient heat exchange system, the cooling efficiency of the data center can be significantly improved.

[0102] 3. Reduce costs: Reduce electricity usage and maintenance costs of air-conditioning equipment, and reduce the operating costs of data centers.

[0103] 4. Environmentally friendly: Reduce electricity consumption, reduce carbon emissions, and be more environmentally friendly.

[0104] 5. Reduce initial investment: By utilizing natural cooling sources, the data center saves the refrigeration and air-conditioning system, reducing initial investment; the pumped storage power station provides UPS function for the data center, further reducing initial investment.

[0105] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the scope of protection of the present invention.

Claims

1. A data center and pumped storage power station joint operation system, characterized in that: It comprises an upper reservoir (1), a lower reservoir (2), a data center (3) and a pumped storage power station (4); wherein an air conditioning system (5) is installed inside the data center (3); The pumped storage power station (4) is arranged between the upper reservoir (1) and the lower reservoir (2); the data center (3) is located between the upper reservoir (1) and the pumped storage power station (4), so that the data center (3) is arranged on the upstream side of the pumped storage power station (4) and the downstream side of the upper reservoir (1); The drainage end of the upper reservoir (1) is connected to the water inlet end of the air conditioning system (5) of the data center (3) through a water pipe (6); after heat exchange in the air conditioning system (5), the drainage end of the air conditioning system (5) is connected to the water inlet end of the pumped storage power station (4) through a first drainage pipe (7); the pumped storage power station (4) generates electricity using gravitational potential energy, and its power supply cable (8) is connected to the data center (3) to supply power to the data center (3); after the pumped storage power station (4) generates electricity, its drainage end is connected to the lower reservoir (2) through a second drainage pipe (9); Wherein: the air conditioning system (5) comprises a heat exchange station (5-1), a hybrid heat exchanger (5-2) and an air conditioning terminal (5-3); The cold source inlet of the heat exchange station (5-1) is connected to the water outlet of the water delivery pipe (6); the cold source outlet of the heat exchange station (5-1) is connected to the water inlet of the first drainage pipe (7), forming a cold source side liquid circulation loop of the heat exchange station (5-1); The cold water inlet pipe (5-2-1) of the hybrid heat exchanger (5-2) is connected to the heat source outlet of the heat exchange station (5-1), and the cold water return pipe (5-2-2) of the hybrid heat exchanger (5-2) is connected to the heat source inlet of the heat exchange station (5-1), forming a cold water circulation loop between the hybrid heat exchanger (5-2) and the heat exchange station (5-1); The coolant outlet of the hybrid heat exchanger (5-2) is connected to the coolant inlet of the air conditioning terminal (5-3) through the coolant down pipe (5-2-3), and the coolant outlet of the air conditioning terminal (5-3) is connected to the coolant inlet of the hybrid heat exchanger (5-2) through the coolant up pipe (5-2-4), forming a coolant circulation loop; The hybrid heat exchanger (5-2) comprises the cold water inlet pipe (5-2-1), the cold water return pipe (5-2-2), the cooling liquid down pipe (5-2-3) and the cooling liquid up pipe (5-2-4), and also comprises a hybrid heat exchanger shell (5-2-5), a first porous medium (5-2-6) and a second porous medium (5-2-7); The hybrid heat exchanger (5-2) is arranged directly above the air conditioning terminal (5-3); the inner cavity of the hybrid heat exchanger shell (5-2-5) is fixedly installed with the first porous medium (5-2-6) and the second porous medium (5-2-7) at different heights; wherein the first porous medium (5-2-6) is located above the second porous medium (5-2-7), and through the separation effect of the first porous medium (5-2-6) and the second porous medium (5-2-7), the inner cavity of the hybrid heat exchanger shell (5-2-5) is divided into five layers from top to bottom, namely, a water layer (I), a porous stratosphere (II), a hybrid heat exchange layer (III), a porous bubble crushing layer (IV) and an electronic cooling layer (IV). liquid layer (V); wherein: the water layer (I) is the area formed between the top surface of the first porous medium (5-2-6) and the top of the hybrid heat exchanger shell (5-2-5); the porous stratosphere (II) is the area formed inside the first porous medium (5-2-6) itself; the hybrid heat exchange layer (III) is the area formed between the bottom surface of the first porous medium (5-2-6) and the top surface of the second porous medium (5-2-7); the porous bubble crushing layer (IV) is the area formed inside the second porous medium (5-2-7) itself; the electronic cooling liquid layer (V) is the area formed between the bottom surface of the second porous medium (5-2-7) and the bottom of the hybrid heat exchanger shell (5-2-5); One side of the mixed heat exchange layer (III) is connected to the cold water inlet pipe (5-2-1); the other side of the water layer (I) is connected to the cold water return pipe (5-2-2); one side of the electronic cooling liquid layer (V) is connected to the liquid inlet end of the cooling liquid down pipe (5-2-3); and the other side of the electronic cooling liquid layer (V) is connected to the liquid outlet end of the cooling liquid up pipe (5-2-4).

2. A data center and pumped storage power station joint operation system according to claim 1, characterized in that: A water pump (10) is installed at the drainage end of the upper reservoir (1); the water outlet end of the water pump (10) is connected to the water inlet of the water delivery pipe (6).

3. The data center and pumped storage power station joint operation system according to claim 1, characterized in that: A filter (11) is installed at a position of the water pipe (6) close to the data center (3).

4. The data center and pumped storage power station joint operation system according to claim 1, characterized in that: The heat exchange station (5-1), the hybrid heat exchanger (5-2) and the air conditioning terminal (5-3) form an air conditioning unit; the air conditioning system (5) is equipped with multiple sets of the air conditioning units in parallel.

5. The data center and pumped storage power station joint operation system according to claim 1, characterized in that: The coolant uses electronic coolant, which is immiscible or slightly soluble in water, has a density greater than water, and a boiling point lower than water.

6. A data center and pumped storage power station joint operation system according to claim 1, characterized in that: The pore size of the first porous medium (5-2-6) is smaller than the pore size of the second porous medium (5-2-7).

7. A method for jointly operating a data center and a pumped storage power station according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step S1, low-temperature water in the upper reservoir (1) reaches the filter (11) through the water pipe (6); after being filtered by the filter (11), it flows into the air conditioning system (5) installed in the data center (3); Step S2, the low-temperature water in the reservoir is used as a cold source to perform heat exchange with the air conditioning system (5); after the heat exchange, the low-temperature water in the reservoir becomes medium-high temperature water and flows into the pumped storage power station (4) along the first drainage pipe (7) under the action of gravity; The air conditioning system (5) cools the data center under the action of low-temperature water from the reservoir; In step S2, the air conditioning system (5) cools the data center under the action of low-temperature water from the reservoir, specifically: Step S2.1, initially, the hybrid heat exchanger (5-2) contains low-temperature electronic coolant, and the initial liquid level of the low-temperature electronic coolant reaches the middle of the hybrid heat exchange layer (III), that is, the electronic coolant layer (V), the porous bubble crushing layer (IV) and the area below the middle of the hybrid heat exchange layer (III) are all filled with low-temperature electronic coolant; Since the density of low-temperature water is less than that of low-temperature electronic coolant, low-temperature water and low-temperature electronic coolant are immiscible or slightly soluble, therefore, cold water flows into the mixed heat exchange layer (III) through the cold water inlet pipe (5-2-1), the cold water temperature is T1, and the cold water is located above the low-temperature electronic coolant; Step S2.2, the temperature of the low-temperature electronic coolant in the electronic coolant layer (V) of the hybrid heat exchanger (5-2) is the same as the cold water temperature T1; the low-temperature electronic coolant flows into the air conditioning terminal (5-3) through the coolant downcomer (5-2-3), and after absorbing the heat of the data center (3), the temperature rises and the density decreases, forming a high-temperature electronic coolant with a temperature of T2; therefore, the high-temperature electronic coolant rises along the coolant upcomer (5-2-4) and flows into the electronic coolant layer (V) of the hybrid heat exchanger (5-2), exchanging heat with the original low-temperature electronic coolant in the electronic coolant layer (V); Among them, since the newly-flown high-temperature electronic coolant has an upward flow velocity, therefore, in the process of flowing through the electronic coolant layer (V), if it can be completely cooled to the cold water temperature T1 by the original low-temperature electronic coolant, the newly-flown high-temperature electronic coolant and the original low-temperature electronic coolant are completely mixed, and flow into the air-conditioning terminal (5-3) through the coolant downcomer (5-2-3), forming a cycle; if it cannot be completely cooled to the cold water temperature T1 by the original electronic coolant, the high-temperature electronic coolant continues to rise, passes through the porous bubble crushing layer (IV) and then flows into the mixed heat exchange layer (III); wherein, if the high-temperature electronic coolant is in the form of bubbles when entering the porous bubble crushing layer (IV), it is divided into small bubbles by the porous bubble crushing layer (IV) and then flows into the mixed heat exchange layer (III); if the high-temperature electronic coolant is in the form of liquid when entering the porous bubble crushing layer (IV), it directly passes through the porous bubble crushing layer (IV) and then flows into the mixed heat exchange layer (III); Step S2.3, the high-temperature electronic coolant flows into the mixed heat exchange layer (III), exchanges heat with the cold water flowing into the mixed heat exchange layer (III), and the high-temperature electronic coolant is cooled or condensed to become the low-temperature electronic coolant, and the density increases. Therefore, it passes downward through the porous bubble crushing layer (IV) and flows into the electronic coolant layer (V), and then flows into the air conditioning terminal (5-3) through the coolant downcomer (5-2-3) for heat exchange; After the cold water flowing into the mixed heat exchange layer (III) exchanges heat with the high-temperature electronic coolant, its temperature increases and its density decreases. Therefore, it carries a small amount of electronic coolant and flows upward. When flowing through the porous stratosphere (II), the cold water and the small amount of electronic coolant carried are completely separated, so that the electronic coolant flows downward, passes through the mixed heat exchange layer (III) and the porous bubble crushing layer (IV), and then flows into the electronic coolant layer (V); the cold water flows upward into the water layer (I); The reason why the porous stratosphere (II) separates cold water and electronic coolant is that a small amount of electronic coolant carried into the porous stratosphere (II) is completely separated from the cold water and electronic coolant due to the high density and gravity, and the porous disturbance in the porous stratosphere (II); Step S2.4, in the process of flowing through the mixed heat exchange layer (III) and the porous stratosphere (II), the cold water fully contacts and exchanges heat with the electronic coolant. Therefore, the cold water flowing into the water layer (I) has absorbed heat, and then flows into the heat exchange station (5-1) through the cold water return pipe (5-2-2) to exchange heat with the low-temperature water in the reservoir; after cooling, it forms cold water again, and then flows back to the mixed heat exchanger (5-2) from the cold water inlet pipe (5-2-1), thereby forming a cold water loop; Step S3, the pumped storage power station (4) generates electricity using the gravitational potential energy of water, and supplies the electricity to the data center (3) along the power supply cable (8), thereby providing power supply for the data center (3); Step S4, after the pumped storage power station (4) generates electricity using the gravitational potential energy of water, the water flows into the lower reservoir (2) along the second drainage pipe (9).

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