阅读说明：本技术 一种基于服务器的双热源发电系统 (Double-heat-source power generation system based on server ) 是由 张淑荣 孙业山 朱爱珍 邹欣华 宋旭 刘启一 于 2019-10-29 设计创作，主要内容包括：本发明公开一种基于服务器的双热源发电系统,与现有技术不同的是,包括收集服务器余热的热量收集系统,收集其他热源的第二热源收集系统,将所述热量收集系统收集的服务器余热和第二热源收集系统收集的热量转化为电能的有机朗肯循环发电系统,所述其他热源包括太阳能、地热能、海洋能、锅炉烟气余热等。与现有技术相比,本发明将中低温余热回收利用有机朗肯循环发电系统与服务器余热收集系统、太阳能等其他热源的集热系统进行耦合,一方面回收利用了低温余热减少能源浪费提高了系统的能源利用率,同时采用太阳能等新能源作为补充热源,清洁、环保、高效,另一方面降低了服务器余热排放温度和排热量,减少了环境热污染。(The invention discloses a server-based dual-heat-source power generation system, which is different from the prior art and comprises a heat collection system for collecting the waste heat of a server, a second heat source collection system for collecting other heat sources, and an organic Rankine cycle power generation system for converting the waste heat of the server collected by the heat collection system and the heat collected by the second heat source collection system into electric energy, wherein the other heat sources comprise solar energy, geothermal energy, ocean energy, boiler flue gas waste heat and the like. Compared with the prior art, the organic Rankine cycle power generation system for recycling the medium-low temperature waste heat is coupled with the server waste heat collection system and the heat collection systems of other heat sources such as solar energy, so that on one hand, the low-temperature waste heat is recycled, the energy waste is reduced, the energy utilization rate of the system is improved, meanwhile, new energy sources such as solar energy are used as supplementary heat sources, the system is clean, environment-friendly and efficient, on the other hand, the waste heat discharge temperature and heat discharge quantity of the server are reduced, and the environmental heat pollution is reduced.)

1. A dual heat source power generation system based on a server is characterized in that: the system comprises a heat collecting system (A) for collecting the waste heat of a server, a second heat source collecting system (C) for collecting other heat sources, and an organic Rankine cycle power generation system (B) for converting the waste heat of the server collected by the heat collecting system (A) and the heat collected by the second heat source collecting system (C) into electric energy, wherein the other heat sources comprise solar energy, geothermal energy, ocean energy, boiler hot water or steam waste heat or boiler flue gas.

2. A server-based dual heat source power generation system according to claim 1, wherein: the heat collecting system (A) comprises a plurality of heat pipes (3-1, 3) laid in the server cabinet2. 3-3 … 3-n), the heat pipe is composed of a pipe shell, a liquid absorption core tightly attached to the inner wall of the pipe shell and an end cover, and the inside of the pipe is drawn to be 1.3 multiplied by 10^-1~-4Filling a phase change working medium after the negative pressure of Pa, and sealing after the capillary porous material of the liquid absorption core is filled with the phase change working medium; one end of the heat pipe in the server cabinet is a hot end (2), one end of the heat pipe outside the server cabinet is a cold end (4), and the cold end (4) of the heat pipe is inserted into the heat exchanger (5).

3. A server-based dual heat source power generation system according to claim 2, wherein: the phase change medium is liquid methanol.

4. A server-based dual heat source power generation system according to claim 2, wherein: the heat pipes are replaced by a back plate heat exchanger.

5. A server-based dual heat source power generation system according to claim 1, wherein: the second heat source collecting system (C) comprises a second heat exchanger (9), the second heat exchanger (21) comprises a first working medium gas-phase pipeline (6) filled with organic working medium and a second working medium pipeline (22) filled with heat conducting oil, and the second working medium pipeline (22) is connected with other heat source collectors.

6. A server-based dual heat source power generation system according to claim 1, wherein: the organic Rankine cycle power generation system (B) comprises a heat exchanger (5), a second heat exchanger (21), a gas-liquid separator (19), a liquid storage device (18), a condensation heat exchanger (11), an expansion machine (9) and a power generator (10), wherein an outlet of the heat exchanger (5) is connected with a first working medium inlet of the second heat exchanger (21) through a first working medium gas-phase pipeline (6), a first working medium outlet of the second heat exchanger (21) is connected with an inlet of the gas-liquid separator (19), an outlet of the gas-liquid separator (19) is connected with an inlet of the expansion machine (9), an outlet of the expansion machine (9) is connected with an inlet of the liquid storage device (18), an outlet of the liquid storage device (18) is connected with an inlet of the heat exchanger (5) through a first working medium liquid-phase pipeline (15), and coils of the heat exchanger (5) and the second heat exchanger (21), Organic working media are filled in the gas-phase pipeline (6) and the liquid-phase pipeline (15), and an output shaft of the expansion machine (9) is connected with an input shaft of the generator (10).

7. A server-based dual heat source power generation system according to claim 6, wherein: the heat exchanger comprises a heat condensing heat exchanger (11) connected in series between an expansion machine (9) and a liquid storage device (18), wherein the heat condensing heat exchanger (11) further comprises a cooling working medium loop (12), the gas-liquid separator (19) is connected with the liquid storage device (18) through a first branch pipeline (28) and a third valve (20) on the first branch pipeline, a working medium pump (19) is installed on a first working medium liquid phase pipeline (15) where an outlet of the liquid storage device (18) is located, a first valve (23) is installed on a first working medium gas phase pipeline (6) close to the outlet of the heat exchanger (5), a second valve (24) is installed on the first working medium liquid phase pipeline (15) close to an inlet of the heat exchanger (5), the first working medium gas phase pipeline (6) between the first valve (23) and the second heat exchanger (21) and the first working medium liquid phase pipeline (15) between the second valve (24) and the working medium pump (19) are also connected by the second valve (24) The branch pipeline (27) is communicated with a throttle valve (25) on the second branch pipeline.

8. A server-based dual heat source power generation system according to claim 5 or 6, wherein: the organic working medium is R245fa or R227ea or R134a and the like.

9. A server-based dual heat source power generation system according to claim 5 or 6, wherein: the expander (9) is a screw expander.

10. A server-based dual heat source power generation system according to claim 5 or 6, wherein: and a pressure meter and a thermometer are respectively arranged on the first working medium gas phase pipeline (6), the first working medium liquid phase pipeline (15), the first branch pipeline (28) and/or the second branch pipeline (27).

Technical Field

The invention relates to a server-based double-heat-source power generation system, and belongs to the technical field of medium and low temperature heat energy utilization.

Background

Energy utilization and environmental protection are two major topics in the world today. Under the condition that the traditional energy sources are gradually reduced, the energy sources are fully utilized, the energy utilization rate is improved, energy conservation and emission reduction are achieved, the fundamental way for solving the energy problems is achieved, and the method is an important measure for realizing the sustainable economic development of China.

The continuous development and use of new energy sources become important subjects in the technical field of energy sources at present. Solar energy, geothermal energy, ocean energy, waste heat and the like are continuously explored and utilized as new energy.

Waste heat recycling is an effective way for improving energy utilization rate and reducing heat pollution emission, and an organic Rankine cycle power generation system is an effective technology for waste heat utilization. The organic Rankine cycle is characterized in that an organic working medium in the system is vaporized at an evaporation end to absorb heat, works at an expansion machine to output mechanical work, is condensed at a condensation end to release heat, and is circulated continuously to finish heat transfer and use, so that the utilization rate of energy is improved, and meanwhile, the heat pollution emission is reduced.

At present, the scale of a data center is larger and larger, and the heat dissipation power and the heat dissipation heat flow density of a server are increased sharply. The heat dissipation of the server affects the work efficiency of the data center, and the heat dissipation of the server of the data center causes serious thermal pollution.

At present, the waste heat of the data center server is transferred to the atmospheric environment in various forms such as air-conditioning and cooling, and the waste heat is not well utilized. The waste heat of the server is effectively utilized, so that the energy utilization rate can be improved, and the heat emission can be reduced.

Disclosure of Invention

The invention aims to overcome the problem of insufficient utilization of the waste heat of the existing server, provides a double-heat-source organic Rankine cycle power generation system taking the waste heat of the server as a first heat source and other heat sources as a second heat source, and fully utilizes the heat dissipation of the server, so the technical scheme adopted by the invention is as follows:

the server-based dual-heat-source power generation system is different from the prior art in that the server-based dual-heat-source power generation system comprises a heat collecting system for collecting waste heat of a server, a second heat source collecting system for collecting other heat sources, and an organic Rankine cycle power generation system for converting the waste heat of the server collected by the heat collecting system and the heat collected by the second heat source collecting system into electric energy, wherein the other heat sources comprise solar energy, geothermal energy, ocean energy, waste heat of boiler flue gas and the like.

Furthermore, the heat collecting system comprises a plurality of heat pipes laid in the server cabinet, each heat pipe comprises a pipe shell, a liquid absorbing core tightly attached to the inner wall of the pipe shell and an end cover, and the inside of each heat pipe is drawn to be 1.3 multiplied by 10^-1~-4Filling a phase change working medium after the negative pressure of Pa, and sealing after the capillary porous material of the liquid absorption core is filled with the phase change working medium; one end of the heat pipe in the server cabinet is a hot end, the other end of the heat pipe outside the server cabinet is a cold end, and the cold end of the heat pipe is inserted into the heat exchanger.

Further, the phase change medium is liquid methanol.

Further, the heat pipes are replaced with a back plate heat exchanger.

Furthermore, the second heat source collecting system comprises a second heat exchanger, the second heat exchanger comprises a first working medium gas phase pipeline filled with organic working media and a second working medium pipeline filled with heat conducting oil, and the second working medium pipeline is connected with other heat source collectors.

Further, the organic Rankine cycle power generation system comprises a heat exchanger, a second heat exchanger, a gas-liquid separator, a liquid storage device, an expansion machine and a power generator, wherein an outlet of the heat exchanger is connected with a first working medium inlet of the second heat exchanger through a first working medium gas-phase pipeline, a first working medium of the second heat exchanger is discharged from an inlet of the gas-liquid separator, an outlet of the gas-liquid separator is connected with an inlet of the expansion machine, an outlet of the expansion machine is connected with an inlet of the liquid storage device, an outlet of the liquid storage device is connected with an inlet of the heat exchanger through a first working medium liquid-phase pipeline, organic working media are filled in a coil pipe, a gas-phase pipeline and a liquid-phase pipeline of the heat exchanger and the second heat exchanger, and an.

The heat exchanger comprises a cooling working medium loop, the gas-liquid separator is connected with the liquid storage device through a first branch pipeline and a third valve on the first branch pipeline, a working medium pump is arranged on a first working medium liquid pipeline on which an outlet of the liquid storage device is arranged, a first valve is arranged on a first working medium gas phase pipeline close to an outlet of the heat exchanger, a second valve is arranged on a first working medium liquid pipeline close to an inlet of the heat exchanger, and the first working medium gas phase pipeline between the first valve and the second heat exchanger and the first working medium liquid pipeline between the second valve and the working medium pump are communicated through a second branch pipeline and a throttle valve on the second branch pipeline.

Further, the organic working fluid is R245fa, R227ea, R134a and the like.

Further, the expander is a screw expander.

And further, a pressure gauge and a thermometer are respectively arranged on the first working medium gas phase pipeline, the first working medium liquid phase pipeline, the first branch pipeline and/or the second branch pipeline.

Compared with the prior art, the organic Rankine cycle power generation system for recycling the medium-low temperature waste heat is coupled with the server waste heat collection system and the heat collection systems of other heat sources such as solar energy, so that on one hand, the low-temperature waste heat is recycled, the energy waste is reduced, the energy utilization rate of the system is improved, meanwhile, new energy sources such as solar energy are used as supplementary heat sources, the system is clean, environment-friendly and efficient, on the other hand, the waste heat discharge temperature and heat discharge quantity of the server are reduced, and the environmental heat pollution is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Detailed Description

The invention will be further explained with reference to the drawings.