Waste heat recovery and utilization system applied to high-performance computing cluster

Abstract

The utility model discloses a waste heat recovery and utilization system applied to a high-performance computing cluster, which utilizes heat generated by a central processing unit of the high-performance computing cluster to heat a heating greenhouse, and comprises a reservoir, a circulating pipeline, a first temperature detector and a controller, a speed regulating centrifugal pump, cooling equipment, a heat exchanger and a floor heating radiating pipe are sequentially arranged on the circulating pipeline in the flowing direction of the circulating pipeline, the input end and the output end of the circulating pipeline are both connected to the water storage tank, the radiating end of the central processing unit is communicated with the heat input end of the heat exchanger, the floor heating radiating pipe is arranged in the heating greenhouse, and the cooling equipment is connected with the water storage tank. The first temperature detector is placed in the circulation pipeline and used for detecting the temperature of cooling liquid in the circulation pipeline after the cooling liquid is heated by the heat exchanger, and the controller is connected with the first temperature detector and the speed regulation centrifugal pump. The method can be used for data center waste heat recovery heating, and energy utilization efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste heat recovery heat management of supercomputers, and particularly relates to a waste heat recovery and utilization system applied to a high-performance computing cluster. BACKGROUND

[0002] Since the twenty-first century, the rapid development of information technology has largely relied on the continued effect of Moore's Law. This law states that the number of transistors that can be accommodated on an integrated circuit will double approximately every 18 months, and this law has driven the continuous leap of computer computing power like magic. With the significant increase in the computing capacity of computer chips, an unavoidable problem has also arisen, that is, the rapid increase in chip heat. High heat not only becomes an important bottleneck restricting the further improvement of computer performance, affecting the stability and life of the system, but also constitutes a huge energy waste during the operation process, which is contrary to the current global concept of energy saving and emission reduction. Therefore, how to effectively solve the problems of chip heat and energy utilization while maintaining the continuous growth of computer performance has become a major challenge in the information technology field, and is also the key to promoting green computing and sustainable development.

[0003] Taking the Wuxi Center Supercomputer, which is currently ranked first in China, as an example, the Godson • Taihu Light, which is installed with 40960 self-developed Shenwei 26010 many-core processors, has a peak computing performance of 3,168 trillion times per second and a power consumption of 15.3 MW. In 2021, it ranked fourth in the global supercomputer list, and its high performance is undeniable, but under the condition of the same performance, the huge heat production has become an energy that cannot be ignored. However, the heat generated by the central processing unit (CPU) during the operation of the supercomputer is mainly handled by active cooling, and the heat energy cannot be effectively recycled. Therefore, it is urgent to find a more reasonable cooling solution for the supercomputer and utilize the waste heat.

[0004] In order to more reasonably improve the heat dissipation and utilize the waste heat of the central processing unit (CPU), the current domestic and foreign solutions are: a floor heating flow control system based on an STM32 single-chip microcomputer, applying a floor heating temperature control system to a floor heating-water heating system, using semiconductor refrigeration technology to eliminate the heat generated during the operation of a notebook computer and recycling the heat outside the semiconductor, and using a U-shaped tube to dissipate heat from the CPU. The above measures do not provide a more reasonable solution for effectively improving the heat dissipation and waste heat utilization of the supercomputer center, and the heat energy cannot be effectively recycled. CONTENT OF THE INVENTION

[0005] In view of this, the purpose of the embodiments of the present application is to provide a waste heat recovery and utilization system applied to a high-performance computing cluster to solve the technical problems in the background art.

[0006] According to the embodiment of the present application, a waste heat recovery and utilization system applied to a high-performance computing cluster is provided. The system utilizes the heat generated by the central processor of the high-performance computing cluster to heat a greenhouse. The system comprises a water storage pool, a circulating pipeline, a first temperature detector and a controller. A speed-regulated centrifugal pump, a cooling device, a heat exchanger and a floor heating pipe are arranged in the circulating pipeline in sequence along the flow direction of the circulating pipeline. The input end and the output end of the circulating pipeline are connected to the water storage pool. The heat dissipation end of the central processor is in communication with the heat input end of the heat exchanger. The floor heating pipe is arranged in the greenhouse. The first temperature detector is arranged in the circulating pipeline and used to detect the temperature of the cooling liquid heated by the heat exchanger. The controller is connected to the first temperature detector and the speed-regulated centrifugal pump.

[0007] The technical scheme provided by the embodiment of the present application can have the following beneficial effects.

[0008] Because a large amount of waste heat is generated during the operation of the high-performance computing cluster, if the waste heat is not treated, it will not only cause energy waste, but also affect the stable operation and service life of the equipment. The technical scheme of the utility model patent overcomes the technical problem of waste heat treatment of the high-performance computing cluster and realizes effective recovery and utilization of the waste heat through the above technical means.

[0009] The heat dissipation end of the central processor is in communication with the heat input end of the heat exchanger, and the heat exchanger realizes effective recovery of the heat generated by the high-performance computing cluster, thereby avoiding energy waste. The first temperature detector is arranged in the circulating pipeline and used to detect the temperature of the cooling liquid heated by the heat exchanger. The controller controls the rotating speed of the speed-regulated centrifugal pump according to the real-time monitoring temperature data, thereby improving the energy efficiency ratio of the system. The circulating pipeline improves the utilization rate of energy by recycling the cooling liquid. The floor heating pipe is arranged in the greenhouse, and the floor heating pipe uses the recovered heat for the greenhouse, thereby realizing secondary utilization of the waste heat, saving heating cost and reducing environmental pollution. In summary, the technical scheme of the utility model patent not only improves the energy utilization efficiency, but also has the dual benefits of energy saving and environmental protection.

[0010] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0011] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application.

[0012] Figure 1is a structural schematic diagram of a waste heat recovery and utilization system applied to a high-performance computing cluster according to an exemplary embodiment.

[0013] Figure 2 is a circuit structural schematic diagram according to an exemplary embodiment.

[0014] The reference signs in the drawings have the following meanings:

[0015] 1, central processing unit; 2, heating greenhouse; 3, water storage tank; 4, circulating pipeline; 5, first temperature detector; 6, controller; 7, speed-regulated centrifugal pump; 8, cooling device; 9, heat exchanger; 10, floor heating pipe; 11, second temperature detector; 12, humidity detector; 13, flow meter. DETAILED DESCRIPTION

[0016] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the exemplary embodiments is intended to apply to various alternative embodiments as well. The following description is not limited to the exemplary embodiments but applies equally well to other embodiments as can be apparent to those skilled in the art. The exemplary embodiments described herein are described in connection with various illustrative examples. The description of the exemplary embodiments is intended to apply to all alternative embodiments as can be apparent to those skilled in the art.

[0017] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0018] It is to be understood that the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It is to be understood that the term "and / or" as used herein encompasses all possible combinations of one or more of the associated listed items and can be abbreviated as "or". It is further to be understood that the use of "approximately", "substantially", or "about" in describing the contents of items herein can include values that are less than or greater than the stated value by an acceptable range of error for the particular value as determined by one of ordinary skill in the art, but can also include the stated value itself.

[0019] As Figure 1 and Figure 2As shown, the utility model embodiment provides a kind of waste heat recovery and utilization system applied to high-performance computing cluster, the heat generated by central processing unit 1 of high-performance computing cluster is utilized to carry out heating to heating greenhouse 2, it include: water reservoir 3, circulating pipeline 4, first temperature detection meter 5 and controller 6, along its flow direction, speed regulating centrifugal pump 7, cooling equipment 8, heat exchanger 9 and floor heating radiating pipe 10 are sequentially arranged on the circulating pipeline 4, the input end and the output end of the circulating pipeline 4 are connected to the water reservoir 3, the heat dissipation end of the central processing unit 1 is connected with the heat input end of heat exchanger 9, the floor heating radiating pipe 10 is arranged in the heating greenhouse 2, the first temperature detection meter 5 is placed in the circulating pipeline 4, for detecting the temperature of cooling liquid after being heated by heat exchanger 9 in circulating pipeline 4, the controller 6 is connected with the first temperature detection meter 5 and speed regulating centrifugal pump 7.

[0020] In an embodiment, it further includes second temperature detection meter 11, the second temperature detection meter 11 is placed in heating greenhouse 2, for detecting the temperature of heating greenhouse 2.

[0021] In an embodiment, it further includes humidity detection meter 12, the humidity detection meter 12 is placed in heating greenhouse 2, for detecting the humidity of heating greenhouse 2.

[0022] In an embodiment, it further includes flow meter 13, flow meter 13 is placed in the circulating pipeline 4, for detecting the flow rate of cooling liquid in circulating pipeline 4.

[0023] Cooling liquid in heat exchanger 9 is heated by the heat generated by central processing unit 1 of high-performance computer cluster, and the cooling liquid with lower temperature in pipeline is cooled by heat exchanger 9 to central processing unit 1, so that the cooling liquid with lower temperature is heated.

[0024] The water reservoir 3 is provided with speed regulating centrifugal pump 7, which provides power for the circulation of the whole cooling liquid.

[0025] The cooling equipment 8 is condensing tower, cooling tower or air cooler. The condensing tower is provided with cooling fan, which can take away the heat in the condensing tower to reduce the temperature of cooling liquid in pipeline. The cooling fan in the condensing tower is responsible for emitting heat to reduce the temperature of cooling liquid. Through circulating pipeline 4, the circulation and utilization of cooling liquid can be realized, energy consumption is reduced, and efficient operation is maintained.

[0026] The circulating pipeline 4 adopts heat preservation pipe, which is composed of steel pipe, glass steel inner sheath and glass steel shell, which can effectively reduce the heat loss along the way in the conveying process.

[0027] The heating greenhouse 2 is internally provided with a floor heating pipe 10, which can release the heat contained in the cooling liquid with high temperature flowing through the high-performance computing cluster heat exchanger 9 in the circulating pipeline 4 to the greenhouse in need of heating, so as to increase the temperature of the greenhouse. The circulating pipeline 4 is arranged in a meandering mode and is buried underground of the heating greenhouse 2. The circulating pipeline 4 is arranged in a meandering mode, so that the space of the heating greenhouse 2 is effectively utilized, the heat exchange area is greatly increased, the heat exchange time is prolonged, and the efficient utilization of the waste heat of the supercomputer center is realized.

[0028] The inner surface of the heating greenhouse 2 is coated with a layer of heat-reflecting paint, which can reduce the heat loss in the house, maintain the temperature stability in the house, improve the energy utilization efficiency and the thermal efficiency.

[0029] The circulating pipeline 4 contains cooling liquid, which can be water, and the cooling liquid can be replaced by other liquid with good heat conductivity, such as glycol water solution or other environmentally friendly cooling liquid.

[0030] The working principle of the utility model is as follows:

[0031] S1, the central processing unit (CPU) of the high-performance computer cluster works and generates heat, and the temperature rises;

[0032] S2, the speed regulating centrifugal pump 7 located in the water storage tank 3 starts to work, and the low-temperature cooling liquid is transported to the heat exchanger 9 through the circulating pipeline 4, so that the heat generated by the heating central processing unit 1 is transferred to the low-temperature cooling liquid to form high-temperature liquid, and efficient water cooling and temperature reduction of the central processing unit 1 of the high-performance computer cluster are realized.

[0033] S3, the high-temperature liquid heated by the central processing unit 1 is led to the floor heating pipe 10 of the heating greenhouse 2 through the circulating pipeline 4, and is fully radiated in the meandering layout pipeline to heat the heating greenhouse 2, so that the waste heat of the central processing unit 1 is utilized.

[0034] S4, the user sets the target temperature on the controller 6, and the heated temperature of the cooling liquid at the outlet of the heat exchanger 9 is detected in real time by the first temperature detector 5;

[0035] S5, after the controller 6 receives the temperature collected by the first temperature detector 5, the temperature is compared with the set target temperature to determine whether there is deviation, if there is deviation, the controller 6 controls the speed regulating centrifugal pump 7 to reduce the deviation to a predetermined threshold range, specifically, if the temperature collected by the first temperature detector 5 is greater than the target temperature, it indicates that the heat exchanger 9 heats the cooling liquid too high, at this time, the controller 6 controls the speed regulating centrifugal pump 7 to increase the rotating speed, so as to reduce the heating time of the cooling liquid in the heat exchanger 9, so that the temperature of the cooling liquid out of the heat exchanger 9 is reduced. Conversely, the rotating speed of the speed regulating centrifugal pump 7 is reduced. The adjusted fluid is sent into the heating greenhouse 2 to provide the required heat for the user;

[0036] S6, the once heat-released cooling liquid through the heating system flows into the reservoir 3 through the circulating pipeline 4, and is subjected to secondary heat release in the natural environment;

[0037] S7, the cooling liquid in the reservoir 3 is subjected to secondary heat release through the adjustable speed centrifugal pump 7, and then flows through the circulating pipeline 4 and the condensing tower. The cooling fan of the condensing tower is operated to fully cool the cooling liquid in the circulating pipeline 4, so as to form low-temperature cooling liquid, which continues to pass through the central processor 1 to passively water-cool the central processor 1.

[0038] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0039] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is limited only by the appended claims.

Claims

1. A waste heat recovery and utilization system for a high-performance computing cluster, which uses the heat generated by the central processing unit of the high-performance computing cluster to heat a heating greenhouse, characterized in that: include: A water reservoir, a circulation pipeline, a first temperature detector and a controller. A speed-regulating centrifugal pump, a cooling device, a heat exchanger and a floor heating heat pipe are arranged in sequence along the flow direction of the circulation pipeline. The input and output ends of the circulation pipeline are both connected to the water reservoir. The heat dissipation end of the central processing unit is connected to the heat input end of the heat exchanger. The floor heating heat pipe is arranged in the heating greenhouse. The first temperature detector is placed in the circulation pipeline to detect the temperature of the coolant in the circulation pipeline after being heated by the heat exchanger. The controller is connected to the first temperature detector and the speed-regulating centrifugal pump.

2. The waste heat recovery and utilization system according to claim 1, characterized in that: It also includes a second temperature detector, which is placed in the heating greenhouse and is used to detect the temperature of the heating greenhouse.

3. The waste heat recovery and utilization system according to claim 1, characterized in that: It also includes a humidity detector, which is placed in the heating greenhouse and is used to detect the humidity of the heating greenhouse.

4. The waste heat recovery and utilization system according to claim 1, characterized in that: It also includes a flow meter, which is placed in the circulation pipeline and is used to detect the flow rate of the coolant in the circulation pipeline.

5. The waste heat recovery and utilization system according to claim 1, characterized in that: The cooling equipment is a condensing tower, a cooling tower or an air cooler.

6. The waste heat recovery and utilization system according to claim 1, characterized in that: The cooling liquid is water or ethylene glycol aqueous solution.

7. The waste heat recovery and utilization system according to claim 1, characterized in that: The circulation pipeline adopts an insulation pipe.

8. The waste heat recovery and utilization system according to claim 7, characterized in that: The thermal insulation pipe is composed of a steel pipe, a glass fiber reinforced plastic inner sheath and a glass fiber reinforced plastic outer shell.

9. The waste heat recovery and utilization system according to claim 1, characterized in that: The floor heating heat dissipation pipes are buried under the heating shed and arranged in a folded shape.

10. The waste heat recovery and utilization system according to claim 1, characterized in that: The inner surface of the heating greenhouse is coated with a layer of heat-reflective paint.

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