阅读说明：本技术 一种基于服务器的发电系统 (Power generation system based on server ) 是由 张淑荣 孙业山 朱爱珍 夏利江 宋旭 邹欣华 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发电系统,包括两个子系统：收集服务器余热的热量收集系统,将所述热量收集系统收集的服务器余热转化为电能的有机朗肯循环发电系统。收集服务器余热的热量收集系统包括有散热的服务器、热管。有机朗肯循环发电系统包括有热交换器、第一温度计、第一压力计、膨胀机、发电机、冷凝热交换器、冷却工质回路、阀门、第二压力计、第二温度计、节流阀门。与现有技术相比,本发明将服务器余热进行了回收利用,并未直接转移排放到大气环境中,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,另一方面降低了余热排放温度,减少了环境热污染,同时该系统易于建设,经济、环保。(The invention discloses a power generation system based on a server, which comprises two subsystems: the system comprises a heat collecting system for collecting the residual heat of the server and an organic Rankine cycle power generation system for converting the residual heat of the server collected by the heat collecting system into electric energy. The heat collecting system for collecting the residual heat of the server comprises a heat-radiating server and a heat pipe. The organic Rankine cycle power generation system comprises a heat exchanger, a first thermometer, a first pressure gauge, an expander, a power generator, a condensation heat exchanger, a cooling working medium loop, a valve, a second pressure gauge, a second thermometer and a throttle valve. Compared with the prior art, the invention recycles the waste heat of the server and does not directly transfer and discharge the waste heat to the atmospheric environment, thereby recycling the low-temperature waste heat, reducing the energy waste, improving the energy utilization rate of the system, reducing the waste heat discharge temperature and reducing the environmental heat pollution.)

1. A server-based power generation system comprises a heat collection system (A) for collecting server waste heat, and an organic Rankine cycle power generation system (B) for converting the server waste heat collected by the heat collection system (A) into electric energy.

2. A server-based power generation system according to claim 1, wherein: the heat collecting system (A) comprises a plurality of heat pipes (3-1, 3-2, 3-3 … 3-n) 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 (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 power generation system according to claim 2, wherein: the phase change medium is liquid methanol.

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

5. A server-based power generation system according to claim 1, wherein: the organic Rankine cycle power generation system (B) comprises a heat exchanger (5), an expander (9) and a generator (10), wherein an outlet of the heat exchanger (5) is connected with an inlet of the expander (9) through a gas phase pipeline (6), an outlet of the expander (9) is connected with an inlet of the heat exchanger (5) through a liquid phase pipeline (15), organic working media flow in a coil of the heat exchanger (5), the gas phase pipeline (6) and the liquid phase pipeline (15), and an output shaft of the expander (9) is connected with an input shaft of the generator (10).

6. A server-based power generation system according to claim 5, wherein: the heat exchanger (11) is connected between the expansion machine (9) and the heat exchanger (5) in series, the heat exchanger (11) also comprises a cooling working medium loop (12), a first thermometer (7) and a first pressure gauge (8) are installed on the gas phase pipeline (6), a second pressure gauge (14), a second thermometer (16) and a throttle valve (17) are installed on the liquid phase pipeline (15), and a valve (13) is installed on the cooling working medium loop (12).

7. A server-based power generation system according to claim 5, wherein: the organic working fluid is R245fa or R227ea or R134 a.

8. A server-based power generation system according to claim 5, wherein: the expander (9) is a screw expander.

Technical Field

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

Background

With the development of science and technology, the scale of the data center, the power and the density of the cabinet are continuously increased, the heat dissipation capacity and the heat dissipation density of the data center are rapidly increased, and the heat dissipation problem of the data center is more and more concerned. The heat dissipation of a large number of data centers not only affects the working efficiency of data center servers, but also causes environmental heat pollution and waste of heat energy resources, which is contrary to the purposes of improving the energy utilization rate and saving energy, and protecting the environment and reducing emission.

Waste heat recycling is an effective way for improving the effective utilization of energy, and an organic Rankine cycle system is a promising technology for recycling low-grade heat energy. The waste heat utilization and the organic Rankine cycle technology are combined, so that the energy utilization efficiency can be improved, the environmental pollution can be reduced, and the energy conservation and emission reduction can be realized.

At present, the heat dissipation of a data center server mainly adopts air cooling and liquid indirect cooling modes of an air conditioning system, so that the heat dissipation of the server is transferred to the environment, and the heat dissipation is not effectively utilized.

Disclosure of Invention

The invention aims to overcome the problem of insufficient utilization of waste heat of the existing server, fully utilize the heat dissipation of the server, release the waste heat of the server to organic working media in an organic Rankine cycle system by using a heat pipe technology or collecting the waste heat through a back plate type heat exchanger, and enable the organic working media subjected to phase change to enter an expansion machine through a gaseous pipeline for acting, so that the energy utilization rate is improved, the final heat dissipation temperature is reduced, the energy utilization rate is improved, and the heat emission is reduced. Therefore, the technical scheme adopted by the invention is as follows:

the server-based power generation system comprises a heat collecting system for collecting the residual heat of the server and an organic Rankine cycle power generation system for converting the residual heat of the server collected by the heat collecting system into electric energy.

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 pipe is replaced with a back plate heat exchanger.

Further, the organic Rankine cycle power generation system comprises a heat exchanger, an expander and a generator, wherein an outlet of the heat exchanger is connected with an inlet of the expander through a gas-phase pipeline, an outlet of the expander is connected with an inlet of the heat exchanger through a liquid-phase pipeline, organic working media are filled in a coil pipe, the gas-phase pipeline and the liquid-phase pipeline of the heat exchanger, and an output shaft of the expander is connected with an input shaft of the generator.

The heat exchanger also comprises a cooling working medium loop, a first pressure gauge and a first temperature gauge are arranged on the gas phase pipeline, a second pressure gauge, a second temperature gauge and a throttle valve are arranged on the liquid phase pipeline, and a valve is arranged on the cooling working medium loop.

Further, the organic working fluid is R245fa or R227ea or R134 a.

Further, the expander is a screw expander.

Compared with the prior art, the invention recycles the waste heat of the server and does not directly transfer and discharge the waste heat to the atmospheric environment, thereby recycling the low-temperature waste heat, reducing the energy waste, improving the energy utilization rate of the system, reducing the waste heat discharge temperature and reducing the environmental heat pollution.

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.