Cogeneration system capable of complementarily utilizing solar energy and waste heat of data center

Abstract

The utility model relates to a solar energy and data center waste heat complementary utilization cooling and power cogeneration system, which comprises a cooling water loop, a chilled water loop, a two-phase immersed liquid cooling system and a power storage and supply system, and the chilled water loop comprises a single-effect lithium bromide absorption refrigeration system, a concentrating photovoltaic-heat storage and supply system and an organic Rankine cycle power generation system; the cooling water loop is connected with a condenser A of the single-effect lithium bromide absorption refrigeration system; the two-phase immersed liquid cooling system is connected with the concentrating photovoltaic-heat storage and supply system, and the concentrating photovoltaic-heat storage and supply system and the generator are connected with the power storage and supply system; the evaporator B of the organic Rankine cycle power generation system is connected with the generator of the single-effect lithium bromide absorption refrigeration system; the generator is connected with the evaporator A; the two-phase immersed liquid cooling system is connected with the evaporator A; the waste heat of the data center can be effectively utilized all year round, the requirement for the annual cold load of the data center is effectively met, and zero external power input and extra power output of the single-effect lithium bromide absorption type refrigerating system are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a solar energy and data center waste heat complementary utilization's combined heat and power system. BACKGROUND

[0002] The data center electricity consumption accounts for a huge proportion in the global total electricity consumption, reaches 1.1~1.5%, and simultaneously, the global data center power demand annual growth rate reaches 15~20%.40~50% of the data center electricity consumption is consumed by information communication technology (ICT) equipment, and almost all is converted into waste heat, which is the reason of huge data center cold load demand.It can be seen from this that the data center waste heat quantity is great and stable throughout the year, has superior application prospect, but the chilled water temperature of traditional water cooling is very low, and then leads to the waste heat quality being very low, difficult to utilize.Not only this, 30~40% of the data center electricity consumption is consumed by the cooling system, and the traditional data center waste heat treatment mode is combined with natural plate exchange and water cooling unit, and the compressor parts in the water cooling unit need to output a large amount of mechanical energy due to compressing gas. SUMMARY

[0003] The utility model makes improvement in view of the above prior art problem, that is, the technical problems to be solved by the utility model are to provide a solar energy and data center waste heat complementary utilization's combined heat and power system.

[0004] In order to realize the above purpose, the technical scheme that the utility model adopts is: a solar energy and data center waste heat complementary utilization's combined heat and power system, including cooling water circuit, chilled water circuit, two-phase immersion type liquid cooling system, storage power supply system, the chilled water circuit includes single effect lithium bromide absorption refrigeration system, concentrated photovoltaic-thermal heat heat supply system, organic rankine cycle power generation system;The single effect lithium bromide absorption refrigeration system includes evaporator A, condenser A, generator, absorber, heat exchanger A;The organic rankine cycle power generation system includes evaporator B, condenser B, expander and generator;The cooling water circuit is connected with condenser A;The condensing coil outlet of two-phase immersion type liquid cooling system is connected with the heat source side entrance of concentrated photovoltaic-thermal heat heat supply system, and the heat source side outlet of concentrated photovoltaic-thermal heat heat supply system is connected with the heat source side outlet of evaporator B, and the power supply side outlet of concentrated photovoltaic-thermal heat heat supply system, the power supply side outlet of generator are connected with storage power supply system respectively;The heat source side outlet of evaporator B is connected with the heat source side entrance of generator, and the heat source side outlet of generator is connected with the heat source side entrance of evaporator A;The condensing coil entrance of two-phase immersion type liquid cooling system is connected with the heat source side outlet of evaporator A.

[0005] Further, the two-phase immersion liquid cooling system comprises a sealed cabinet, an information communication technology equipment, an electronic fluorination liquid and a condensing coil, the information communication technology equipment is immersed in the electronic fluorination liquid in the sealed cabinet, and the condensing coil condenses steam generated by boiling of the electronic fluorination liquid.

[0006] Further, the condensing coil outlet of the two-phase immersion liquid cooling system is connected with the heat source side inlet of the concentrated photovoltaic-thermal heat storage and heating system through a working medium pump A.

[0007] Further, the concentrated photovoltaic-thermal heat storage and heating system comprises a concentrated photovoltaic-thermal assembly, a cold tank, a hot tank, a heat exchanger B, a working medium pump B and a working medium pump C, the cold tank outlet is connected with the heat source side inlet of the concentrated photovoltaic-thermal assembly through the working medium pump B, the heat source side outlet of the concentrated photovoltaic-thermal assembly is connected with the inlet of the hot tank through the working medium pump C, the outlet of the hot tank is connected with the inlet of the heat exchanger B, the outlet of the heat exchanger B is connected with the inlet of the cold tank, the power supply side outlet of the concentrated photovoltaic-thermal assembly is connected with the controller inlet of the power storage and power supply system, the heat source side inlet of the heat exchanger B is connected with the condensing coil outlet of the two-phase immersion liquid cooling system, and the heat source side outlet of the heat exchanger B is connected with the heat source side inlet of the evaporator B.

[0008] Further, the working medium side inlet of the evaporator B is connected with the working medium side outlet of the condenser B through a working medium pump D, the working medium side outlet of the evaporator B is connected with the inlet of an expander, the expander is coaxially connected with a generator, the outlet of the expander is connected with the working medium side inlet of the condenser B, and the generator is connected with the controller inlet of the power storage and power supply system.

[0009] Further, the water vapor working medium side outlet of the generator is connected with the working medium side inlet of the condenser A through water vapor, the working medium side outlet of the condenser A is connected with the working medium side inlet of the evaporator A through an expansion valve A, the working medium side outlet of the evaporator A is connected with the water vapor working medium side inlet of the absorber through water vapor, the lithium bromide working medium side outlet of the absorber is connected with the lithium bromide working medium side inlet of the generator 21 through the working medium pump E after being pressurized and heat-exchanged by the heat exchanger A, the lithium bromide working medium side outlet of the generator is connected with the lithium bromide working medium side inlet of the absorber through the lithium bromide concentrated solution after heat-exchanged by the heat exchanger A and depressurized by the expansion valve B.

[0010] Further, the generator, the absorber, the condenser A and the evaporator A are sequentially connected through pipelines, and the pipelines are covered with a composite silicate thermal insulation layer.

[0011] Further, the cooling water circuit comprises an indirect evaporative cooling tower and a working medium pump F, the outlet of the indirect evaporative cooling tower is connected with the heat source side inlet of the condenser A through the working medium pump F, and the outlet of the condenser A is connected with the inlet of the indirect evaporative cooling tower.

[0012] Further, the indirect evaporative cooling tower has a fan installed at the tower opening, the fan is connected with the temperature sensor of the water outlet of the indirect evaporative cooling tower through a control unit, and the control unit receives data of the temperature sensor and adjusts the rotating speed of the fan.

[0013] Further, the power storage system comprises a controller, a battery pack and power consumption ends connected in sequence, and the power generator of the organic Rankine cycle power generation system and the power supply outlet of the concentrated photovoltaic-thermal heat storage heat supply system supply power to the battery pack inlet through the controller for power storage, and then the battery pack outlet supplies power to each power consumption end.

[0014] Compared with the prior art, the utility model has the following effects: the utility model discloses solar energy and data center waste heat as heat source, combines concentrated photovoltaic-thermal heat storage heat supply system, organic Rankine cycle and lithium bromide absorption refrigeration, reaches the temperature counterparty, gradient utilization, heat refrigeration to satisfy the data center cold load, realizes the annual cold heat combined production of power supply, can utilize data center waste heat effectively all the year round, effectively satisfies the data center annual cold load, realizes single-effect lithium bromide absorption refrigeration system zero external power grid power input and extra power output. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the structure schematic diagram of the embodiment of the utility model;

[0016] Fig. 2 It is the structure schematic diagram of the concentrated photovoltaic-thermal heat storage heat supply system in the embodiment of the utility model.

[0017] In the drawing:

[0018] 1-Working medium pump F;2-Working medium pump A;3-Working medium pump G;4-Working medium pump E;5-Working medium pump H;6-Working medium pump D;7-Working medium pump B;8-Working medium pump C;9-Expansion valve B;10-Expansion valve A;11-Generator;12-Expander;13-Two-phase immersion liquid cooling system;14-Cooling coil;15-Power consumption end;16-Battery pack;17-Controller;18-CPV / T heat storage heat supply system;19-Cooling condenser B;20-Evaporator B;21-Generator;22-Cooling condenser A;23-Heat exchanger A;24-Evaporator A;25-Absorber;26-ORC system;27-Single-effect absorption lithium bromide refrigeration system;28-Indirect evaporative cooling tower;29-Cooling tank;30-Warm tank;31-Heat exchanger B;32-CPV / T unit;A-CPV / T heat storage heat supply system heat source side inlet;B-CPV / T heat storage heat supply system heat source side outlet;C-CPV / T heat storage heat supply system power supply side outlet. DETAILED DESCRIPTION

[0019] The utility model will be further explained in detail below in combination with the drawings and specific embodiments.

[0020] In the description of the utility model, it needs to understand that, the orientation or position relation indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are the orientation or position relation shown in the drawings, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore can not be understood as limiting the utility model.

[0021] As shown in Figs. 1-2 The utility model discloses a solar energy and data center waste heat complementary utilization's combined heat and power system, including cooling water loop, chilled water loop, two-phase immersion liquid cooling system, storage power supply system, the chilled water loop includes single effect lithium bromide absorption refrigeration system 27, concentrated photovoltaic-thermal (CPV / T) heat storage heat supply system 18, organic rankine cycle (ORC) power generation system 26, the single effect lithium bromide absorption refrigeration system 27 includes evaporator A 24, condenser A 22, generator 21, absorber 25, heat exchanger A 23, the organic rankine cycle power generation system 26 includes evaporator B 20, condenser B 19, expander 12 and generator 11, the cooling water loop is connected with condenser A 22, the condensing coil 14 export of two-phase immersion liquid cooling system is connected with the heat source side entrance a of concentrated photovoltaic-thermal heat storage heat supply system 18, and the heat source side export of concentrated photovoltaic-thermal heat storage heat supply system 18 is connected with the heat source side export b of evaporator B, and ORC power generation system 26 provides power, and the power supply side export c of concentrated photovoltaic-thermal heat storage heat supply system 18, the power supply side export of generator 11 is connected with storage power supply system respectively, the heat source side export of evaporator B 20 is connected with the heat source side entrance of generator 21, and power is provided for single effect absorption lithium bromide refrigeration system 27, the heat source side export of generator 21 is connected with the heat source side entrance of evaporator A 24, and the chilled water return temperature is reduced to the required temperature, and the data center cold load demand is satisfied, the condensing coil 14 entrance of two-phase immersion liquid cooling system is connected with the heat source side export of evaporator A 24.This system realizes the heat collection and temperature rise effect of CPV / T heat storage heat supply system on the basis of chilled water waste heat preheating, provides heat for evaporator B of ORC power generation system and generator of single effect lithium bromide absorption refrigeration system in turn, and temperature is matched, complies with the energy cascade utilization principle, utilizes the stable data center waste heat of all year round and abundant western solar energy resources to drive combined heat and power system, satisfies the data center cold load of all year round, provides power for single effect lithium bromide absorption refrigeration system's working medium pump and the like power supply end, realizes the output of additional external power on the basis of realizing the zero external power grid power input of single effect lithium bromide absorption refrigeration system.

[0022] In the embodiment, the two-phase immersion liquid cooling system includes a sealed cabinet, an information communication technology (ICT) device, an electronic fluorinated liquid, and a condenser coil 14. The ICT device is immersed in the electronic fluorinated liquid in the sealed cabinet. Heat is transferred from the ICT device to the electronic fluorinated liquid in the sealed cabinet, and the electronic fluorinated liquid is boiled to generate steam. The condenser coil 14 condenses the steam generated by boiling of the electronic fluorinated liquid, and transfers heat to the chilled water circuit. The two-phase immersion liquid cooling allows the heat generating element to be in full direct contact with the refrigerant. Through the phase change process of boiling and condensation of the electronic fluorinated liquid, the heat transfer efficiency of the liquid is greatly improved, the working medium temperature of the chilled water circuit is improved, and the waste heat quality of the chilled water circuit is improved.

[0023] In the embodiment, the condenser coil 14 outlet of the two-phase immersion liquid cooling system is connected to the heat source side inlet a of the concentrated photovoltaic-thermal heat storage and heating system 18 through a working medium pump A2.

[0024] In the embodiment, the concentrated photovoltaic-thermal heat storage and heating system 18 includes a concentrated photovoltaic-thermal (CPV / T) assembly 32, a cold tank 29, a hot tank 30, a heat exchanger B 31, a working medium pump B7, and a working medium pump C8. The cold tank 29 outlet is connected to the heat source side inlet of the concentrated photovoltaic-thermal assembly 32 through the working medium pump B7. After being heated by the CPV / T assembly 32, the heat source side outlet of the concentrated photovoltaic-thermal assembly 32 is connected to the inlet of the hot tank 30 through the working medium pump C8. The outlet of the hot tank 30 is connected to the inlet of the heat exchanger B 31. After heat exchange with the chilled water circuit, the outlet of the heat exchanger B 31 is connected to the inlet of the cold tank 29. The power supply side outlet c of the concentrated photovoltaic-thermal assembly 32 is connected to the inlet of the controller 17 of the power storage and power supply system. By introducing the CPV / T heat storage and heating system 18, the all-weather heating demand of the system can be met. The heat source side outlet of the heat exchanger B 31 is connected to the heat source side inlet of the evaporator B20.

[0025] Further, the CPV / T assembly 32 is a combination of a photovoltaic cell and a heat collector. Part of the solar energy is directly used for photovoltaic power generation, and the other part is used for heat collection. Part of the solar energy (about 25% at 503K) is directly converted into electrical energy, and the other part of the solar energy (about 50%) becomes waste heat of the photovoltaic cell. On the basis of the original waste heat preheating of the chilled water, the heat collection and temperature rise are sequentially satisfied for the heat demand of the ORC power generation system 26 and the single-effect lithium bromide absorption refrigeration system 27. The CPV / T heat storage and heating system 18 fully utilizes the advantages of abundant solar energy resources in the west, improves the solar energy utilization rate, and enriches the utilization form of solar energy.

[0026] In the embodiment, the working medium side inlet of the evaporator B20 is connected with the working medium side outlet of the condenser B19 through the working medium pump D6, the working medium side outlet of the evaporator B20 is connected with the inlet of the expander 12, the expander 12 is coaxially connected with the generator 11, the outlet of the expander 12 is connected with the working medium side inlet of the condenser B19, the working medium side outlet of the condenser B19 is connected with the inlet of the working medium pump 6, and the generator 11 is connected with the inlet of the controller 17 of the power storage and power supply system. The organic working medium in the evaporator B20 is evaporated into organic steam by heating, flows through the expander 12 to expand and work, and drives the generator 11 to generate electricity at the same time. The generated electricity can be used in the water pumps and other electric equipment in the whole cogeneration system, and the organic steam after working flows into the condenser B19 to be condensed and release heat, becomes liquid, flows into the working medium pump D6 to be pressurized, and then flows back to the evaporator B20 to complete the power generation cycle.

[0027] In the embodiment, the water vapor working medium side outlet of the generator 21 is connected with the working medium side inlet of the condenser A22 through water vapor, that is, the lithium bromide solution in the generator 21 is heated through the chilled water circuit, the water vapor working medium side outlet of the generator 21 is connected with the working medium side inlet of the condenser A22 through water vapor. The water vapor is condensed into liquid water through the condenser A22, and the cooling water releases heat to the circuit at the same time. The working medium side outlet of the condenser A22 is connected with the working medium side inlet of the evaporator A24 through the expansion valve A10 and the evaporator A24. The working medium side outlet of the evaporator A24 is connected with the water vapor working medium side inlet of the absorber 25 through water vapor. The lithium bromide working medium side outlet of the absorber 25 is connected with the lithium bromide working medium side inlet of the generator 21 through the working medium pump E4, the lithium bromide dilute solution and the heat exchanger A23. The lithium bromide solution in the generator 21 is heated through the chilled water circuit again to release water vapor, continue to enter the condenser A22 to be condensed and release heat, and the lithium bromide working medium side outlet of the generator 21 is connected with the lithium bromide working medium side inlet of the absorber 25 through the heat exchanger A23 and the expansion valve B9, and the lithium bromide concentrated solution, to complete the refrigeration cycle.

[0028] In the embodiment, the generator 21, the absorber 25, the condenser A22 and the evaporator A24 are sequentially connected through pipelines, and the pipelines are covered with a composite silicate thermal insulation layer.

[0029] In this embodiment, the cooling water circuit includes an indirect evaporative cooling tower 28, a working fluid pump F1, the outlet of the indirect evaporative cooling tower 28 is connected to the heat source side inlet of the condenser A22 through the working fluid pump F1, and the outlet of the condenser A22 is connected to the inlet of the indirect evaporative cooling tower 28. The heat discharged from the condenser A22 in the cooling water circuit is continuously discharged to the environment through the indirect evaporative cooling tower 28. The outlet water temperature of the indirect cooling tower 28 of the cooling water circuit is the dew point temperature of the inlet air, which can significantly prolong the natural cooling time compared with the traditional cooling tower; and the heat discharge of the chilled water circuit can completely solve the problem of ice formation in the cooling tower.

[0030] In this embodiment, a fan is installed at the tower outlet of the indirect evaporative cooling tower 28, the fan is connected to the temperature sensor at the outlet of the indirect evaporative cooling tower 28 through a control unit, the control unit receives data from the temperature sensor and adjusts the rotating speed of the fan, thereby changing the heat exchange efficiency by changing the air convection speed in the tower, so as to control the outlet water temperature of the indirect evaporative cooling tower 28.

[0031] In this embodiment, the power storage and supply system includes a controller 17, a battery pack 16 and a power consumption end 15 connected in sequence, the power supply outlet of the generator 11 of the organic Rankine cycle power generation system 26 and the power supply outlet c of the concentrating photovoltaic-thermal heat storage heating system 18 are respectively connected to the inlet of the battery pack 16 through the controller 17 to store power, and then the outlet of the battery pack 16 supplies power to each power consumption end 15.

[0032] In this embodiment, the single-effect lithium bromide absorption refrigerator uses a chemical compressor composed of a generator and an absorber to replace the traditional compressor, which not only has much lower energy cost for pumping liquid than for compressing steam, but also provides the possibility of waste heat utilization by using heat instead of electricity. The generator temperature of the single-effect absorption refrigeration system can operate at about 80℃, which is compatible with the waste heat temperature of the two-phase immersion liquid cooling system. Capturing and reusing the waste heat of ICT equipment not only utilizes the dissipated energy but also reduces the system consumption of the cooling system, thereby saving a large amount of energy.

[0033] In this embodiment, the organic Rankine cycle is a Rankine cycle using low-boiling-point organic matter as the working fluid, which can effectively recover medium and low-grade heat energy and match the temperature of the two-phase immersion liquid cooling system. The sound speed of the organic working fluid is lower than that of water vapor at the same temperature, and a higher expansion efficiency can still be generated at a lower rotating speed, so the organic Rankine cycle has broad application prospects in the field of waste heat recovery in data centers.

[0034] In the embodiment, the CPV / T assembly of the CPV / T heat storage and heat supply system is a combination of a concentrated photovoltaic cell and a heat collector, part of the solar energy is directly used for photovoltaic power generation, and the other part is used for heat collection; part of the solar energy (about 25% at 503K) is directly converted into electric energy, and the other part of the solar energy (about 50%) becomes waste heat of the photovoltaic cell. The high heat storage capacity and high stability of the energy storage molten salt tank, the molten salt in the low-temperature molten salt tank is sent to the CPV / T assembly for heat exchange by the cold molten salt circulating pump, and after being heated to the required temperature, the molten salt flows back to the hot molten salt tank for storage. Not only can the photovoltaic power station work in rainy weather and all-weather, but also can provide help for solving the intermittent problem of photovoltaic in the process of building a new type of power system.

[0035] In the embodiment, the waste heat of a single cabinet cannot drive a single-effect lithium bromide absorption refrigeration system to meet its own cooling load. The utility model uses a single-effect lithium bromide absorption refrigeration system and a waste heat treatment system combined with two-phase immersion liquid cooling, which not only saves energy but also protects the environment, has very high economic and social benefits, and is an ideal choice for sustainable development in the field of data center waste heat and recycling. In the known theory and application of the single-effect lithium bromide absorption refrigeration system combined with two-phase immersion liquid cooling, the waste heat of three heat supply cabinets using two-phase immersion liquid cooling can meet the cooling load of another ordinary cabinet through the single-effect lithium bromide absorption refrigeration system. However, the cooling load of the heat supply cabinet still needs traditional natural plate exchange and a water chiller to meet. The introduction of the CPV / T heat storage and heat supply system can not only meet the annual cooling load of the data center itself through the single-effect lithium bromide absorption refrigeration system, but also can supply power to the power consumption end through the ORC power generation system and the photovoltaic power generation function of the CPV / T unit; and the temperature is matched, which conforms to the principle of energy cascade utilization.

[0036] The utility model has the advantages that:

[0037] The CPV / T heat storage and heat supply system and the organic Rankine cycle make full use of the data center waste heat and solar low-temperature renewable energy, are low-carbon and environmentally friendly, energy-saving and clean, also conform to the principle of energy cascade utilization, reduce energy waste, have high energy utilization rate, and to some extent, alleviate the energy supply and demand contradiction. The system uses solar energy and data center waste heat as a heat source, combines the CPV / T heat storage and heat supply system, the organic Rankine cycle and the lithium bromide absorption refrigeration, not only achieves the purpose of temperature matching, cascade utilization and refrigeration by heat to meet the cooling load of the data center, but also realizes the annual combined heat and power of electricity supply. The introduction of the CPV / T heat storage and heat supply system heats and warms the existing waste heat of the chilled water, and meets the heat demand of the ORC power generation system and the single-effect lithium bromide absorption refrigeration system in turn; the organic Rankine cycle subsystem generates electricity, which can not only make full use of the medium and low temperature heat source, but also greatly reduce the size of the steam turbine generator.

[0038] If the utility model discloses or involves mutually fixed connection's component or structural member, then, except another declaration, fixed connection can be understood as: the fixed connection of detachable (for example uses bolt or screw connection), also can be understood as: the fixed connection of undetachable (for example riveting, welding), of course, mutually fixed connection can be replaced by integral structure (for example using casting process integral forming manufacture) (obviously cannot adopt integral forming process except).

[0039] In addition, the meaning of the term used to represent the positional relationship or shape in any of the technical solutions disclosed in the utility model includes the approximate, similar or close state or shape, unless otherwise stated.

[0040] Any component provided by the utility model can be assembled from multiple individual components, or can be an individual component manufactured by integral forming process.

[0041] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the utility model and not to limit them; although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific embodiments of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solutions of the utility model, they should be included in the technical solutions of the utility model claimed in the utility model.

Claims

1. A combined cooling and power system that complements the utilization of solar energy and waste heat from data centers, characterized in that: The system includes a cooling water circuit, a chilled water circuit, a two-phase submerged liquid cooling system, and an energy storage power supply system. The chilled water circuit comprises a single-effect lithium bromide absorption refrigeration system, a concentrated photovoltaic-thermal storage heating system, and an organic Rankine cycle power generation system. The single-effect lithium bromide absorption refrigeration system includes an evaporator A, a condenser A, a generator, an absorber, and a heat exchanger A. The organic Rankine cycle power generation system includes an evaporator B, a condenser B, an expander, and a generator. The cooling water circuit is connected to condenser A. The two-phase submerged liquid cooling system... The coil outlet is connected to the heat source side inlet of the concentrated photovoltaic-thermal storage heating system; the heat source side outlet of the concentrated photovoltaic-thermal storage heating system is connected to the heat source side outlet of evaporator B; the power supply side outlet of the concentrated photovoltaic-thermal storage heating system and the power supply side outlet of the generator are respectively connected to the energy storage power supply system; the heat source side outlet of evaporator B is connected to the heat source side inlet of the generator; the heat source side outlet of the generator is connected to the heat source side inlet of evaporator A; the condenser coil inlet of the two-phase immersion liquid cooling system is connected to the heat source side outlet of evaporator A.

2. The combined cooling and power system for complementary utilization of solar energy and data center waste heat according to claim 1, characterized in that: The two-phase immersion liquid cooling system includes a sealed cabinet, information and communication technology equipment, electronic fluorinated liquid, and condenser coils. The information and communication technology equipment is immersed in the electronic fluorinated liquid inside the sealed cabinet, and the condenser coils condense the vapor generated by the boiling of the electronic fluorinated liquid.

3. The combined cooling and power system for complementary utilization of solar energy and data center waste heat according to claim 1, characterized in that: The outlet of the condenser coil of the two-phase submerged liquid cooling system is connected to the heat source side inlet of the concentrated photovoltaic-thermal storage heating system via working fluid pump A.

4. The combined cooling and power system for complementary utilization of solar energy and data center waste heat according to claim 1, characterized in that: The concentrated photovoltaic-thermal storage heating system includes a concentrated photovoltaic-thermal module, a cold tank, a hot tank, a heat exchanger B, a working fluid pump B, and a working fluid pump C. The outlet of the cold tank is connected to the heat source inlet of the concentrated photovoltaic-thermal module via the working fluid pump B. The outlet of the concentrated photovoltaic-thermal module is connected to the inlet of the hot tank via the working fluid pump C. The outlet of the hot tank is connected to the inlet of the heat exchanger B. The outlet of the heat exchanger B is connected to the inlet of the cold tank. The power supply side outlet of the concentrated photovoltaic-thermal module is connected to the controller inlet of the energy storage power supply system. The heat source inlet of the heat exchanger B is connected to the condenser coil outlet of the two-phase immersion liquid cooling system. The heat source side outlet of the heat exchanger B is connected to the heat source side inlet of the evaporator B.

5. The combined cooling and power system for complementary utilization of solar energy and data center waste heat according to claim 1, characterized in that: The working fluid side inlet of evaporator B is connected to the working fluid side outlet of condenser B via working fluid pump D. The working fluid side outlet of evaporator B is connected to the inlet of expander. Expander is coaxially connected to generator. Expander outlet is connected to the working fluid side inlet of condenser B. Generator is connected to the controller inlet of energy storage power supply system.

6. The combined cooling and power system for complementary utilization of solar energy and data center waste heat according to claim 1, characterized in that: The steam working fluid outlet of the generator is connected to the working fluid inlet of condenser A via steam. The working fluid outlet of condenser A is connected to the working fluid inlet of evaporator A via expansion valve A. The working fluid outlet of evaporator A is connected to the steam working fluid inlet of absorber via steam. The lithium bromide working fluid outlet of absorber is pressurized by working fluid pump E and heat exchanged with heat exchanger A, then connected to the lithium bromide working fluid inlet of generator via dilute lithium bromide solution. The lithium bromide working fluid outlet of generator is heat exchanged by heat exchanger A and pressure reduced by expansion valve B, then connected to the lithium bromide working fluid inlet of absorber via concentrated lithium bromide solution.

7. The combined cooling and power system for complementary utilization of solar energy and data center waste heat according to claim 6, characterized in that: The generator, absorber, condenser A and evaporator A are connected in sequence by pipes, and the pipes are covered with a composite silicate insulation layer.

8. The combined cooling and power system for complementary utilization of solar energy and data center waste heat according to claim 1, characterized in that: The cooling water circuit includes an indirect evaporative cooling tower and a working fluid pump F. The outlet of the indirect evaporative cooling tower is connected to the heat source side inlet of the condenser A through the working fluid pump F, and the outlet of the condenser A is connected to the inlet of the indirect evaporative cooling tower.

9. The combined cooling and power system for complementary utilization of solar energy and data center waste heat according to claim 8, characterized in that: The limiting outlet water temperature of an indirect evaporative cooling tower is the dew point temperature of the inlet air. A fan is installed at the inlet of the indirect evaporative cooling tower. The fan is connected to the temperature sensor at the outlet of the indirect evaporative cooling tower through a control unit. The control unit receives the data from the temperature sensor and adjusts the fan speed.

10. The combined cooling and power system for the complementary utilization of solar energy and waste heat from data centers according to claim 1, characterized in that: The energy storage power supply system includes a controller, a battery pack, and power consumption terminals connected in sequence. The generator power supply outlet of the Rankine cycle power generation system and the power supply outlet of the concentrated photovoltaic-thermal storage heating system supply power to the battery pack inlet through the controller for energy storage, and then supply power to each power consumption terminal through the battery pack outlet.

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