WO2022048547A1 - Temperature control system, communication device, and temperature control method - Google Patents

Temperature control system, communication device, and temperature control method Download PDF

Info

Publication number
WO2022048547A1
WO2022048547A1 PCT/CN2021/115817 CN2021115817W WO2022048547A1 WO 2022048547 A1 WO2022048547 A1 WO 2022048547A1 CN 2021115817 W CN2021115817 W CN 2021115817W WO 2022048547 A1 WO2022048547 A1 WO 2022048547A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
liquid
temperature control
pressure
control system
Prior art date
Application number
PCT/CN2021/115817
Other languages
French (fr)
Chinese (zh)
Inventor
刘帆
赵俊鹏
陶成
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2022048547A1 publication Critical patent/WO2022048547A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20381—Thermal management, e.g. evaporation control
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20309—Evaporators
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds

Definitions

  • the present application relates to the field of communication equipment, and in particular, to a temperature control system, communication equipment and temperature control method.
  • the embodiment of the present application provides a temperature control system, which includes a working medium liquid storage tank, a liquid outlet pipeline, a liquid return pipeline, a liquid outlet and a liquid return port, and one end of the liquid outlet pipeline is connected to the working medium liquid storage tank
  • the outlet of the liquid return pipe is connected to the liquid outlet and the other end is connected to the liquid outlet.
  • One end of the liquid return pipeline is connected to the liquid return port, and the other end is connected to the inlet of the working medium liquid storage tank.
  • the first pressure and temperature sensors are arranged along the working medium conveying direction of the liquid outlet pipeline.
  • a circulating pump, and a regenerator are arranged in sequence along the working medium conveying direction of the liquid return pipeline.
  • the liquid outlet pipeline and the liquid return pipeline exchange heat at the regenerator and are not connected to each other.
  • the liquid outlet and the liquid return port are respectively used to connect the inlet and outlet of the temperature-controlled equipment.
  • Embodiments of the present application also provide a communication device, including an evaporator and the aforementioned temperature control system, the evaporator includes an inlet and an outlet, the liquid outlet of the temperature control system is connected to the inlet of the evaporator, and the liquid return port of the temperature control system Connect the outlet of the evaporator.
  • An embodiment of the present application also provides a temperature control method for the aforementioned temperature control system, including: detecting a first temperature and a first pressure of a working medium before entering a circulating pump; calculating a first temperature and a first pressure according to the first temperature and the first pressure A degree of subcooling; the working fluid is cooled based on the first degree of subcooling.
  • FIG. 1 is a schematic diagram of a temperature control system according to a first embodiment of the present application
  • FIG. 2 is a schematic diagram of the connection between the controller and other components of the temperature control system according to the first embodiment of the present application;
  • FIG. 3 is a schematic diagram of a temperature control system according to a second embodiment of the present application.
  • FIG. 5 is a schematic diagram of a communication device according to a third embodiment of the present application.
  • FIG. 6 is a flowchart of a temperature control method according to a fourth embodiment of the present application.
  • FIG. 7 is a flowchart of a temperature control method according to a fifth embodiment of the present application.
  • the pump-driven two-phase liquid cooling method mainly uses the principle of two-phase working medium to absorb and condense heat in the process of circulating flow to collect and transport heat. heat dissipation equipment.
  • the purpose of the embodiments of the present application is to provide a temperature control system, communication equipment and temperature control method, which can meet the safety requirements of the pump, and can also ensure that the working fluid enters the equipment in a saturated state, thereby improving the heat exchange capacity of the equipment.
  • the first embodiment of the present application relates to a temperature control system 100 , as shown in FIG. 1 .
  • the core of this embodiment is that the temperature control system 100 includes a working fluid storage tank 1, a liquid outlet pipeline 4, a liquid return pipeline 8, a liquid outlet 6 and a liquid return port 7, and one end of the liquid outlet pipeline 4 is connected to the working fluid.
  • the outlet of the liquid storage tank 1 and the other end are connected to the liquid outlet 6, one end of the liquid return pipeline 8 is connected to the liquid return port 7, and the other end is connected to the inlet of the working medium liquid storage tank 1, and the working medium is transported along the liquid outlet pipeline 4.
  • the first pressure and temperature sensor 2, the circulating pump 3, and the regenerator 5 are arranged in sequence along the direction of the liquid return pipeline 8, and the regenerator 5 and the cooling device 10 are arranged in sequence along the working medium conveying direction of the liquid return pipeline 8.
  • the liquid outlet pipeline 4 and the liquid return pipeline 8 exchange heat at the regenerator 5 and are not connected to each other, and the liquid outlet 6 and the liquid return port 7 are respectively used to connect the inlet and outlet of the equipment to be temperature controlled.
  • the temperature control system of this embodiment can detect the pressure and temperature of the working medium before entering the circulating pump by disposing the first pressure and temperature sensor before the circulating pump, and calculate the degree of subcooling accordingly.
  • the working fluid before the equipment and the working fluid flowing out from the equipment to be temperature controlled conduct heat exchange at the regenerator, thereby reducing the subcooling degree of the working fluid, ensuring that the working fluid enters the equipment to be temperature controlled in a saturated state, and improving the performance of the equipment. heat transfer capacity.
  • the liquid outlet 6 and the liquid return port 7 of the temperature control system 100 of this embodiment are used to connect with the inlet and outlet of the temperature-controlled equipment, so that the temperature control system 100 and the temperature-controlled equipment form a working
  • the circulation loop of the working medium, and the conveying direction of the working medium is shown by the arrow in Figure 1.
  • the gas-liquid two-phase working medium flowing in the circulation loop is stored in the working fluid storage tank 1. After the working fluid flows out from the working fluid storage tank 1, it is pressurized by the circulating pump 3 and sent into the liquid outlet pipeline 4.
  • the working fluid storage tank 1 is used to compensate the two-phase working fluid and control the saturation temperature of the two-phase working fluid.
  • the interior of the working fluid storage tank 1 is always in a gas-liquid two-phase saturated state, so the temperature and pressure of the working fluid in the working fluid storage tank 1 correspond one-to-one.
  • the first pressure and temperature sensor 2 is disposed at the inlet of the circulation pump 3 or at a position close to the inlet of the circulation pump 3 for detecting the first pressure and the first temperature of the working fluid before flowing into the circulation pump 3 . According to the detected first pressure and first temperature, the corresponding subcooling degree can be calculated.
  • the subcooling degree before entering the circulating pump 3 should not be less than 5°C. Therefore, if the subcooling degree of the working fluid before entering the circulating pump 3 does not meet the safety requirements, the working state of the cooling device 10 in the liquid return pipeline 8 can be controlled to improve the heat exchange efficiency when the working fluid passes through the cooling device 10. Further reduce the temperature of the working fluid.
  • the above calculation and control can be implemented by the controller, and the controller is connected to the first pressure and temperature sensor 2 and the cooling device 10 in communication at this time.
  • the controller may be a processor or a hardware circuit.
  • the regenerator 5 is arranged after the circulating pump 3 , and both the liquid outlet pipeline 4 and the liquid return pipeline 8 pass through the regenerator 5 .
  • the temperature of the working fluid at the liquid port 6 can reduce the subcooling degree of the working fluid entering the temperature-controlled equipment, and on the other hand, the temperature of the working fluid flowing to the cooling device 10 in the liquid return line 8 can be reduced, so as to reduce the cooling device 10 heat load.
  • the cooling device 10 exchanges heat with the working fluid in the liquid return line 8 by circulating the cooling liquid.
  • the cooling device 10 may also operate in other cooling modes (eg, air cooling).
  • the cooling device 10 includes a cooling liquid storage tank 11 , a condenser 13 and a cooling pipeline.
  • the cooling line connects the outlet of the cooling liquid storage tank 11 to the inlet of the condenser 13 , and connects the inlet of the cooling liquid storage tank 11 to the outlet of the condenser 13 .
  • the liquid return line 8 and the cooling line exchange heat at the condenser 13 and are not communicated with each other.
  • the cooling liquid storage tank 11 stores the cooling liquid, and the cooling liquid flowing out from the cooling liquid storage tank 11 enters the condenser 13 through the cooling pipeline, exchanges heat with the working medium in the liquid return pipeline 8, absorbs heat and raises the temperature, Then it flows back to the cooling liquid storage tank 11 through the cooling pipeline to release heat, forming a cooling liquid circulation loop.
  • the heat exchange efficiency of the condenser 13 to the working fluid in the liquid return line 8 can be controlled by controlling the flow rate and/or flow rate of the cooling liquid in the cooling line, so that the heat exchange rate of the working fluid entering the circulating pump 3 can be accurately controlled. coldness.
  • the cooling pipeline includes a three-way valve 12 connected to the outlet of the cooling liquid storage tank 11 , and a first branch 14 and a second branch circuit 14 disposed between the three-way valve 12 and the inlet of the cooling liquid storage tank 11 .
  • Branch 15 The inlet of the three-way valve 12 is connected to the outlet of the cooling liquid storage tank 11 , and the two outlets of the three-way valve 12 are connected to the first branch 14 and the second branch 15 respectively, so as to cool the cooling liquid flowing out of the cooling liquid storage tank 11 .
  • the condenser 13 may be provided on the first branch 14 or the second branch 15 . Therefore, the heat exchange efficiency of the condenser 13 for the working fluid in the liquid return line 8 can be controlled by controlling the opening of the three-way valve 12 , thereby controlling the degree of subcooling of the working fluid entering the circulating pump 3 .
  • the heat exchange efficiency of the working fluid in the pipeline 8 can be increased by increasing the opening of the three-way valve 12 to the first branch 14 and/or reducing the opening of the second branch 15 to increase cooling The flow rate and/or flow rate of the liquid in the first branch 14 to improve the heat exchange efficiency. Conversely, by reducing the opening of the three-way valve 12 to the first branch 14 and/or increasing the opening of the second branch 15, the flow rate and /or flow rate to reduce heat transfer efficiency.
  • the temperature control system 100 of this embodiment further includes a communication connection with the first pressure and temperature sensor 2 and the three-way valve 12 the controller 16.
  • the controller 16 may be a processor or a hardware circuit.
  • the second embodiment of the present application relates to another temperature control system 100', as shown in FIG. 3 .
  • the temperature control system 100 ′ provided in the second embodiment is substantially the same as the temperature control system 100 provided in the first embodiment, except that the temperature control system 100 ′ provided in the second embodiment further includes a temperature control system 100 ′ provided in the liquid outlet pipeline 4 .
  • the preheater 9 and the second pressure and temperature sensor 2' are respectively arranged between the regenerator 5 and the liquid outlet 6 along the working medium conveying direction of the liquid outlet pipeline 4.
  • the regenerator 5 cannot completely ensure that the two-phase working medium is heated to a saturated state, so the working medium entering the equipment to be temperature controlled still has a degree of subcooling. Therefore, the provision of the preheater 9 and the second pressure and temperature sensor 2' can avoid such problems.
  • the second pressure and temperature sensor 2' is arranged at a position close to the liquid outlet 6, and is used to detect the second pressure and the second temperature of the working medium before flowing into the temperature control device. According to the detected second pressure and second temperature, the corresponding subcooling degree can be calculated.
  • the preheater 9 can be controlled to open or the heating power of the preheater can be increased to further increase the working fluid temperature. In this way, the subcooling degree of the working fluid can be eliminated, and the working fluid can be guaranteed to enter the temperature-controlled equipment in a saturated state. Further, the above calculation and control can be automatically realized by the controller, as shown in FIG.
  • the controller 16 may be a processor or a hardware circuit. By setting the controller 16, in addition to achieving the effects described in the first embodiment, the heating power of the preheater 9 can be automatically controlled according to the subcooling degree of the current working medium, thereby realizing automatic control of the subcooling degree of the working medium.
  • the third embodiment of the present application also relates to a communication device 300 , as shown in FIG. 5 , which includes an evaporator 200 , and the temperature control system 100 as described in the aforementioned first embodiment or as described in the aforementioned second embodiment
  • the temperature control system 100' The evaporator 200 includes an inlet and an outlet, the inlet is connected to the liquid outlet 6 of the temperature control system 100 (100'), and the outlet is connected to the liquid return port 7 of the temperature control system 100 (100').
  • the fourth embodiment of the present application also relates to a temperature control method, as shown in FIG. 6 .
  • the temperature control method in this embodiment can be applied to the temperature control system 100 described in the foregoing first embodiment or the temperature control system 100' described in the foregoing second embodiment.
  • the temperature control method in this embodiment includes the following steps.
  • Step 401 Detect the first temperature and first pressure of the working medium before entering the circulating pump.
  • the first temperature T 1 of the working fluid before entering the circulating pump 3 can be measured by the first pressure and temperature sensor 2 arranged near the inlet of the circulating pump 3 (or arranged at the inlet of the circulating pump 3 ). and the first pressure P 1 .
  • Step 402 Calculate the first degree of subcooling according to the first temperature and the first pressure.
  • the first saturation temperature T s1 corresponding to the working fluid under the first pressure P 1 can be obtained according to the first pressure P 1 through the controller 16 connected in communication with the first pressure and temperature sensor 2 , and
  • Step 403 Cool the working fluid based on the first degree of subcooling.
  • the degree of cooling of the working fluid passing through the cooling device 10 by the cooling device 10 may be controlled by the controller 16 in communication with the cooling device 10 according to the first degree of subcooling ⁇ T 1 .
  • the controller 16 may control the three-way valve 12 to increase the opening of the first branch 14 and/or decrease the opening of the second branch 15 according to the first subcooling degree ⁇ T 1 , or reduce the opening of the first branch 14 and/or increase the opening of the second branch 15 .
  • the fifth embodiment of the present application also relates to another temperature control method, as shown in FIG. 7 .
  • Steps 501 to 503 in the temperature control method provided by the fifth embodiment are substantially the same as steps 401 to 403 of the temperature control method provided by the fourth embodiment, and are not repeated here.
  • the difference is that the temperature control method provided by the fifth embodiment further includes the following steps.
  • Step 504 Detect the second temperature and the second pressure of the working medium after flowing out of the regenerator.
  • the second temperature T 2 and the second pressure P 2 of the working fluid after flowing out of the regenerator 5 can be measured by the second pressure and temperature sensor 2 ′ arranged after the regenerator 5 .
  • Step 505 Calculate the second degree of subcooling according to the second temperature and the second pressure.
  • Step 506 Heating the working medium based on the second degree of subcooling.
  • the degree of heating of the working medium flowing through the preheater 9 by the preheater 9 may be controlled according to the second degree of subcooling ⁇ T 2 by the controller 16 in communication with the preheater 9 .
  • the controller 16 may control the preheater 9 to increase or decrease the heating power according to the second subcooling degree ⁇ T 2 .
  • the saturation temperature mentioned in this application refers to the temperature at which the gas phase and the liquid phase of the working fluid are in a dynamic equilibrium state (ie, a saturated state).
  • a saturated state When the working medium is in a saturated state, its temperature and pressure are not independent, but have a one-to-one correspondence, and this correspondence is related to the physical properties of the working medium. Therefore, in the case of a given pressure value, the saturation temperature value corresponding to the working fluid under the pressure can be obtained. Record the physical property data of different materials).

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Control Of Temperature (AREA)

Abstract

Disclosed in embodiments of the present application are a temperature control system, a communication device, and a temperature control method. The system comprises a working medium reservoir, a liquid outlet pipe, a liquid return pipe, a liquid outlet, and a liquid return port. One end of the liquid outlet pipe is connected to the outlet of the working medium reservoir, and the other end is connected to the liquid outlet. One end of the liquid return pipe is connected to the liquid return port, and the other end is connected to the inlet of the working medium reservoir. A first pressure and temperature sensor, a circulating pump, and a heat regenerator are sequentially arranged in a working medium conveying direction of the liquid outlet pipe. The liquid outlet pipe and the liquid return pipe exchange heat at the heat regenerator and do not communicate with each other. The liquid outlet and the liquid return port are respectively used for connecting the inlet and outlet of a device of which the temperature is to be controlled.

Description

一种控温***、通讯设备及温度控制方法A temperature control system, communication equipment and temperature control method
交叉引用cross reference
本申请基于申请号为“202010909156.7”、申请日为2020年09月02日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。This application is based on the Chinese patent application with the application number "202010909156.7" and the application date is September 2, 2020, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference. Apply.
技术领域technical field
本申请涉及通讯设备领域，尤其涉及一种控温***、通讯设备及温度控制方法。The present application relates to the field of communication equipment, and in particular, to a temperature control system, communication equipment and temperature control method.
背景技术Background technique
由于通讯设备存在维护、业务量波动等特殊场景工况，通常伴随着散热功耗出现剧烈波动的现象，这对于泵驱两相设备的稳定运行提出了挑战。例如设备功耗瞬间降低后，设备的进液温度会突然降低，造成进入设备内的两相工质过冷度高，导致设备的换热能力差。此外，即使在功耗波动不大的情况下，由于泵驱两相设备中泵的安全性要求，通常在泵前需要保证5℃以上的过冷度，这也会存在进入设备内的两相工质过冷度高而降低设备换热能力的问题。如何控制工质过冷度以同时兼顾设备换热的要求和泵的安全性要求，成为泵驱两相液冷***在通讯设备上应用的难题。Due to special scenarios such as maintenance and business volume fluctuations in communication equipment, the phenomenon of severe fluctuations in heat dissipation and power consumption is usually accompanied by severe fluctuations in cooling power consumption, which poses a challenge to the stable operation of pump-driven two-phase equipment. For example, after the power consumption of the equipment is reduced instantaneously, the temperature of the liquid entering the equipment will suddenly decrease, resulting in a high degree of subcooling of the two-phase working medium entering the equipment, resulting in poor heat exchange capacity of the equipment. In addition, even if the power consumption fluctuates little, due to the safety requirements of the pump in the pump-driven two-phase equipment, it is usually necessary to ensure a subcooling degree of more than 5 °C before the pump, which will also cause the two-phase entering the equipment. The problem of reducing the heat transfer capacity of the equipment due to the high degree of subcooling of the working fluid. How to control the subcooling degree of the working medium so as to take into account the requirements of equipment heat exchange and the safety requirements of the pump at the same time has become a difficult problem in the application of the pump-driven two-phase liquid cooling system to the communication equipment.
发明内容SUMMARY OF THE INVENTION
本申请的实施方式提供了一种控温***，其包括工质储液箱、出液管路、回液管路、出液口和回液口，出液管路一端连接工质储液箱的出口、另一端连接出液口，回液管路一端连接回液口、另一端连接工质储液箱的入口，沿出液管路的工质输送方向依次设置有第一压力和温度传感器、循环泵、和回热器，沿回液管路的工质输送方向依次设置有回热器、和冷却装置，出液管路与回液管路在回热器处交换热量且互不连通，出液口与回液口分别用于连接待控温设备的入口和出口。The embodiment of the present application provides a temperature control system, which includes a working medium liquid storage tank, a liquid outlet pipeline, a liquid return pipeline, a liquid outlet and a liquid return port, and one end of the liquid outlet pipeline is connected to the working medium liquid storage tank The outlet of the liquid return pipe is connected to the liquid outlet and the other end is connected to the liquid outlet. One end of the liquid return pipeline is connected to the liquid return port, and the other end is connected to the inlet of the working medium liquid storage tank. The first pressure and temperature sensors are arranged along the working medium conveying direction of the liquid outlet pipeline. , a circulating pump, and a regenerator. A regenerator and a cooling device are arranged in sequence along the working medium conveying direction of the liquid return pipeline. The liquid outlet pipeline and the liquid return pipeline exchange heat at the regenerator and are not connected to each other. , the liquid outlet and the liquid return port are respectively used to connect the inlet and outlet of the temperature-controlled equipment.
本申请的实施方式还提供了一种通讯设备，包括蒸发器、以及前述控温***，蒸发器包括入口和出口，控温***的出液口连接蒸发器的入口，控温***的回液口连接蒸发器的出口。Embodiments of the present application also provide a communication device, including an evaporator and the aforementioned temperature control system, the evaporator includes an inlet and an outlet, the liquid outlet of the temperature control system is connected to the inlet of the evaporator, and the liquid return port of the temperature control system Connect the outlet of the evaporator.
本申请的实施方式还提供了一种温度控制方法，用于前述控温***，包括：检测工质在进入循环泵前的第一温度和第一压力；根据第一温度和第一压力计算第一过冷度；基于第一过冷度冷却工质。An embodiment of the present application also provides a temperature control method for the aforementioned temperature control system, including: detecting a first temperature and a first pressure of a working medium before entering a circulating pump; calculating a first temperature and a first pressure according to the first temperature and the first pressure A degree of subcooling; the working fluid is cooled based on the first degree of subcooling.
附图说明Description of drawings
图1是根据本申请第一实施方式的控温***的示意图；1 is a schematic diagram of a temperature control system according to a first embodiment of the present application;
图2是根据本申请第一实施方式的控温***的控制器与其他部件的连接示意图；2 is a schematic diagram of the connection between the controller and other components of the temperature control system according to the first embodiment of the present application;
图3是根据本申请第二实施方式的控温***的示意图；3 is a schematic diagram of a temperature control system according to a second embodiment of the present application;
图4是根据本申请第二实施方式的控温***的控制器与其他部件的连接示意图；4 is a schematic diagram of the connection between the controller and other components of the temperature control system according to the second embodiment of the present application;
图5是根据本申请第三实施方式的通讯设备的示意图；5 is a schematic diagram of a communication device according to a third embodiment of the present application;
图6是根据本申请第四实施方式的温度控制方法的流程图；6 is a flowchart of a temperature control method according to a fourth embodiment of the present application;
图7是根据本申请第五实施方式的温度控制方法的流程图。FIG. 7 is a flowchart of a temperature control method according to a fifth embodiment of the present application.
具体实施方式detailed description
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请的各实施方式进行详细的阐述。然而，本领域的普通技术人员可以理解，在本申请各实施方式中，为了使读者更好地理解本申请而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施方式的种种变化和修改，也可以实现本申请各权利要求所要求保护的技术方案。In order to make the objectives, technical solutions and advantages of the present application clearer, the various embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art can understand that, in the various embodiments of the present application, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the claims of the present application can be realized.
随着电子技术的发展，芯片、设备功耗越来越大，传统的风冷、单相液冷***已经逐渐无法满足大功耗电子设备的散热需求。为此，泵驱两相液冷散热方式越来越受到本领域的关注。泵驱两相液冷散热方式主要利用两相工质在循环流动过程中蒸发吸热和冷凝放热的原理对热量进行收集和运输，目前已在例如航天设备、运输设备、发电设备等需要持续散热的设备中应用。With the development of electronic technology, the power consumption of chips and equipment is increasing, and the traditional air-cooled and single-phase liquid-cooled systems have gradually been unable to meet the heat dissipation requirements of high-power electronic equipment. Therefore, the pump-driven two-phase liquid cooling method has attracted more and more attention in the field. The pump-driven two-phase liquid cooling method mainly uses the principle of two-phase working medium to absorb and condense heat in the process of circulating flow to collect and transport heat. heat dissipation equipment.
然而，由于通讯设备存在维护、业务量波动等特殊场景工况，通常伴随着散热功耗出现剧烈波动的现象，这对于泵驱两相设备的稳定运行提出了挑战。例如设备功耗瞬间降低后，设备的进液温度会突然降低，造成进入设备内的两相工质过冷度高，导致设备的换热能力差。此外，即使在功耗波动不大的情况下，由于泵驱两相设备中泵的安全性要求，通常在泵前需要保证5℃以上的过冷度，这也会存在进入设备内的两相工质过冷度高而降低设备换热能力的问题。如何控制工质过冷度以同时兼顾设备换热的要求和泵的安全性要求，成为泵驱两相液冷***在通讯设备上应用的难题。However, due to special scenarios such as maintenance and business volume fluctuations in communication equipment, there are usually violent fluctuations in heat dissipation and power consumption, which poses a challenge to the stable operation of pump-driven two-phase equipment. For example, after the power consumption of the equipment is reduced instantaneously, the temperature of the liquid entering the equipment will suddenly decrease, resulting in a high degree of subcooling of the two-phase working medium entering the equipment, resulting in poor heat exchange capacity of the equipment. In addition, even if the power consumption fluctuates little, due to the safety requirements of the pump in the pump-driven two-phase equipment, it is usually necessary to ensure a subcooling degree of more than 5 °C before the pump, which will also cause the two-phase entering the equipment. The problem of reducing the heat transfer capacity of the equipment due to the high degree of subcooling of the working fluid. How to control the subcooling degree of the working medium so as to take into account the requirements of equipment heat exchange and the safety requirements of the pump at the same time has become a difficult problem in the application of the pump-driven two-phase liquid cooling system to the communication equipment.
本申请实施方式的目的在于提供一种控温***、通讯设备及温度控制方法，其能够满足泵的安全性要求，同时还能够确保工质以饱和状态进入设备内，提高设备换热能力。The purpose of the embodiments of the present application is to provide a temperature control system, communication equipment and temperature control method, which can meet the safety requirements of the pump, and can also ensure that the working fluid enters the equipment in a saturated state, thereby improving the heat exchange capacity of the equipment.
本申请的第一实施方式涉及一种控温***100，如图1所示。本实施方式的核心在于，控温***100包括工质储液箱1、出液管路4、回液管路8、出液口6和回液口7，出液管路4的一端连接工质储液箱1的出口、另一端连接出液口6，回液管路8一端连接回液口7、另一端连接工质储液箱1的入口，沿出液管路4的工质输送方向依次设置有第一压力和温度传感器2、循环泵3、和回热器5，沿回液管路8的工质输送方向依次设置有回热器5、和冷却装置10，出液管路4与回液管路8在回热器5处交换热量且互不连通，出液口6与回液口7分别用于连接待控温设备的入口和出口。The first embodiment of the present application relates to a temperature control system 100 , as shown in FIG. 1 . The core of this embodiment is that the temperature control system 100 includes a working fluid storage tank 1, a liquid outlet pipeline 4, a liquid return pipeline 8, a liquid outlet 6 and a liquid return port 7, and one end of the liquid outlet pipeline 4 is connected to the working fluid. The outlet of the liquid storage tank 1 and the other end are connected to the liquid outlet 6, one end of the liquid return pipeline 8 is connected to the liquid return port 7, and the other end is connected to the inlet of the working medium liquid storage tank 1, and the working medium is transported along the liquid outlet pipeline 4. The first pressure and temperature sensor 2, the circulating pump 3, and the regenerator 5 are arranged in sequence along the direction of the liquid return pipeline 8, and the regenerator 5 and the cooling device 10 are arranged in sequence along the working medium conveying direction of the liquid return pipeline 8. The liquid outlet pipeline 4 and the liquid return pipeline 8 exchange heat at the regenerator 5 and are not connected to each other, and the liquid outlet 6 and the liquid return port 7 are respectively used to connect the inlet and outlet of the equipment to be temperature controlled.
本实施方式的控温***通过在循环泵前设置第一压力和温度传感器，可以检测工质进入循环泵前的压力和温度，并据此计算出过冷度，由此可以根据该过冷度来控制冷却装置处对工质的热交换，从而调节工质进入循环泵前的过冷度以满足循环泵的安全性要求；另外，通过在循环泵后设置回热器，使得流入待控温设备前的工质和从待控温设备流出后的工质在回热器处进行热交换，从而降低工质的过冷度，确保工质以饱和状态进入待控温的设备，提高设备的换热能力。The temperature control system of this embodiment can detect the pressure and temperature of the working medium before entering the circulating pump by disposing the first pressure and temperature sensor before the circulating pump, and calculate the degree of subcooling accordingly. To control the heat exchange of the working medium at the cooling device, so as to adjust the subcooling degree of the working medium before entering the circulating pump to meet the safety requirements of the circulating pump; The working fluid before the equipment and the working fluid flowing out from the equipment to be temperature controlled conduct heat exchange at the regenerator, thereby reducing the subcooling degree of the working fluid, ensuring that the working fluid enters the equipment to be temperature controlled in a saturated state, and improving the performance of the equipment. heat transfer capacity.
下面对本实施方式的控温***的实现细节进行具体的说明，以下内容仅为方便理解提供的实现细节，并非实施本方案的必须。The implementation details of the temperature control system of the present embodiment will be specifically described below, and the following contents are only provided for the convenience of understanding, and are not necessary for implementing this solution.
如图1所示，本实施例的控温***100的出液口6和回液口7用于与待控温设备的入口和出口连接，由此控温***100和待控温设备形成工质的循环回路，工质的输送方向如图1 的箭头所示。工质储液箱1中储存有在循环回路中流动的气液两相工质，工质从工质储液箱1中流出后，经循环泵3加压后送入出液管路4中，随后流经回热器5、和出液口6进入待控温设备内部；工质在待控温设备内部热交换后，经由回液口7进入回液管路8，然后流经回热器5和冷却装置10，最终回到工质储液箱1，由此完成了工质的循环。As shown in FIG. 1 , the liquid outlet 6 and the liquid return port 7 of the temperature control system 100 of this embodiment are used to connect with the inlet and outlet of the temperature-controlled equipment, so that the temperature control system 100 and the temperature-controlled equipment form a working The circulation loop of the working medium, and the conveying direction of the working medium is shown by the arrow in Figure 1. The gas-liquid two-phase working medium flowing in the circulation loop is stored in the working fluid storage tank 1. After the working fluid flows out from the working fluid storage tank 1, it is pressurized by the circulating pump 3 and sent into the liquid outlet pipeline 4. , and then flow through the regenerator 5 and the liquid outlet 6 into the interior of the temperature-controlled equipment; after the working medium exchanges heat inside the temperature-controlled equipment, it enters the liquid return pipeline 8 through the liquid return port 7, and then flows through the heat recovery The cooling device 5 and the cooling device 10 are finally returned to the working medium liquid storage tank 1, thereby completing the circulation of the working medium.
工质储液箱1用于补偿两相工质和控制两相工质的饱和温度。工质储液箱1的内部始终处于气液两相饱和状态，因此工质储液箱1中工质的温度和压力一一对应。通过对工质储液箱1内工质的温度进行控制，则可以控制工质储液箱1内工质的压力，进而控温***100各个位置的压力。The working fluid storage tank 1 is used to compensate the two-phase working fluid and control the saturation temperature of the two-phase working fluid. The interior of the working fluid storage tank 1 is always in a gas-liquid two-phase saturated state, so the temperature and pressure of the working fluid in the working fluid storage tank 1 correspond one-to-one. By controlling the temperature of the working medium in the working medium liquid storage tank 1 , the pressure of the working medium in the working medium liquid storage tank 1 can be controlled, and then the pressure at each position of the temperature control system 100 can be controlled.
第一压力和温度传感器2设置在循环泵3的入口位置、或者靠近循环泵3的入口的位置，用于检测流入循环泵3前的工质的第一压力和第一温度。根据检测得到的第一压力和第一温度，可以计算出相应的过冷度。通常，为了保证循环泵的安全运行，进入循环泵3前的过冷度不应小于5℃。因此，若进入循环泵3前的工质的过冷度不符合安全性要求，则可以控制回液管道8中的冷却装置10的工作状态，提高工质经过冷却装置10时的换热效率，进一步降低工质的温度。由此，可以保证进入循环泵3的工质具有适当的过冷度而不会影响循环泵的安全运行。进一步地，上述计算和控制皆可以通过控制器来实现，此时控制器与第一压力和温度传感器2以及冷却装置10通信连接。控制器可以是处理器或者是硬件电路。通过设置控制器可以实时监测并计算工质的过冷度，并根据当前工质的过冷度自动控制冷却装置对工质的换热效率，以实现自动控制工质的过冷度。The first pressure and temperature sensor 2 is disposed at the inlet of the circulation pump 3 or at a position close to the inlet of the circulation pump 3 for detecting the first pressure and the first temperature of the working fluid before flowing into the circulation pump 3 . According to the detected first pressure and first temperature, the corresponding subcooling degree can be calculated. Usually, in order to ensure the safe operation of the circulating pump, the subcooling degree before entering the circulating pump 3 should not be less than 5°C. Therefore, if the subcooling degree of the working fluid before entering the circulating pump 3 does not meet the safety requirements, the working state of the cooling device 10 in the liquid return pipeline 8 can be controlled to improve the heat exchange efficiency when the working fluid passes through the cooling device 10. Further reduce the temperature of the working fluid. Therefore, it can be ensured that the working medium entering the circulating pump 3 has an appropriate degree of subcooling without affecting the safe operation of the circulating pump. Further, the above calculation and control can be implemented by the controller, and the controller is connected to the first pressure and temperature sensor 2 and the cooling device 10 in communication at this time. The controller may be a processor or a hardware circuit. By setting the controller, the subcooling degree of the working fluid can be monitored and calculated in real time, and the heat exchange efficiency of the cooling device to the working fluid can be automatically controlled according to the current subcooling degree of the working fluid, so as to automatically control the subcooling degree of the working fluid.
回热器5设置在循环泵3之后，出液管路4和回液管路8均穿过回热器5。从循环泵3流入至出液管路4的工质与从回液口7流入至回液管路8在回热器5处进行热交换，一方面可以升高出液管路4中流向出液口6的工质的温度，以降低进入待控温设备的工质的过冷度，另一方面可以降低回液管路8中流向冷却装置10的工质的温度，以降低冷却装置10的热负荷。The regenerator 5 is arranged after the circulating pump 3 , and both the liquid outlet pipeline 4 and the liquid return pipeline 8 pass through the regenerator 5 . The working fluid flowing from the circulating pump 3 to the liquid outlet pipe 4 and the liquid flowing into the liquid return pipe 8 from the liquid return port 7 exchange heat at the regenerator 5. The temperature of the working fluid at the liquid port 6 can reduce the subcooling degree of the working fluid entering the temperature-controlled equipment, and on the other hand, the temperature of the working fluid flowing to the cooling device 10 in the liquid return line 8 can be reduced, so as to reduce the cooling device 10 heat load.
在本实施方式中，冷却装置10以循环冷却液的方式的对回液管路8中的工质进行换热。然而，应当理解的是，在其他实施方式中，冷却装置10也可以以其他冷却方式(例如，空冷方式)工作。在本实施方式中，请继续参见图1，冷却装置10包括冷却液储液箱11、冷凝器13和冷却管路。冷却管路将冷却液储液箱11的出口与冷凝器13的入口连接、且将冷却液储液箱11的入口与冷凝器13的出口连接。回液管路8与冷却管路在冷凝器13处交换热量且互不连通。冷却液储液箱11储存有冷却液，从冷却液储液箱11流出的冷却液经冷却管路进入冷凝器13，与回液管路8中的工质进行热交换，吸收热量而升温，随后经冷却管路流回至冷却液储液箱11进行放热，形成了冷却液的循环回路。由此，可以通过控制冷却管路中冷却液的流量和/或流速来控制冷凝器13对回液管路8中工质的换热效率，从而可以准确控制进入循环泵3的工质的过冷度。In this embodiment, the cooling device 10 exchanges heat with the working fluid in the liquid return line 8 by circulating the cooling liquid. However, it should be understood that in other embodiments, the cooling device 10 may also operate in other cooling modes (eg, air cooling). In this embodiment, please continue to refer to FIG. 1 , the cooling device 10 includes a cooling liquid storage tank 11 , a condenser 13 and a cooling pipeline. The cooling line connects the outlet of the cooling liquid storage tank 11 to the inlet of the condenser 13 , and connects the inlet of the cooling liquid storage tank 11 to the outlet of the condenser 13 . The liquid return line 8 and the cooling line exchange heat at the condenser 13 and are not communicated with each other. The cooling liquid storage tank 11 stores the cooling liquid, and the cooling liquid flowing out from the cooling liquid storage tank 11 enters the condenser 13 through the cooling pipeline, exchanges heat with the working medium in the liquid return pipeline 8, absorbs heat and raises the temperature, Then it flows back to the cooling liquid storage tank 11 through the cooling pipeline to release heat, forming a cooling liquid circulation loop. In this way, the heat exchange efficiency of the condenser 13 to the working fluid in the liquid return line 8 can be controlled by controlling the flow rate and/or flow rate of the cooling liquid in the cooling line, so that the heat exchange rate of the working fluid entering the circulating pump 3 can be accurately controlled. coldness.
具体地，冷却管路包括与冷却液储液箱11的出口相连的三通阀12、以及设置在三通阀12与冷却液储液箱11的入口之间的第一支路14和第二支路15。三通阀12的入口连接冷却液储液箱11的出口，三通阀12的两个出口分别连接第一支路14和第二支路15，以对从冷却液储液箱11流出的冷却液进行分流。冷凝器13可以设置在第一支路14或第二支路15上。由此，可以通过控制三通阀12的开度来控制冷凝器13对回液管路8中工质的换热效率，从而控制进入循环泵3的工质的过冷度。Specifically, the cooling pipeline includes a three-way valve 12 connected to the outlet of the cooling liquid storage tank 11 , and a first branch 14 and a second branch circuit 14 disposed between the three-way valve 12 and the inlet of the cooling liquid storage tank 11 . Branch 15. The inlet of the three-way valve 12 is connected to the outlet of the cooling liquid storage tank 11 , and the two outlets of the three-way valve 12 are connected to the first branch 14 and the second branch 15 respectively, so as to cool the cooling liquid flowing out of the cooling liquid storage tank 11 . Divide the liquid. The condenser 13 may be provided on the first branch 14 or the second branch 15 . Therefore, the heat exchange efficiency of the condenser 13 for the working fluid in the liquid return line 8 can be controlled by controlling the opening of the three-way valve 12 , thereby controlling the degree of subcooling of the working fluid entering the circulating pump 3 .
以冷凝器13设置在第一支路14上的情况(如图1所示)为例，当需要增大进入循环泵3的工质的过冷度时，则需要提高冷凝器13对回液管路8中工质的换热效率，此时，可以通过增大三通阀12对第一支路14的开度和/或减小对第二支路15的开度，从而增大冷却液在第一支路14中的流量和/或流速，以提高换热效率。反之，也可以通过减小三通阀12对第一支路14的开度和/或增大对第二支路15的开度，从而减小冷却液在第一支路14中的流量和/或流速，以降低换热效率。进一步地，上述对于三通阀12的控制可以通过控制器来自动实现，如图2所示，本实施例的控温***100还包括与第一压力和温度传感器2以及三通阀12通信连接的控制器16。控制器16可以是处理器或者是硬件电路。通过设置控制器16可以实时监测并计算工质的过冷度，并根据当前工质的过冷度自动控制三通阀12来控制冷凝器13处对于工质的换热效率，从而实现自动控制工质的过冷度。Taking the case where the condenser 13 is arranged on the first branch 14 (as shown in FIG. 1 ) as an example, when it is necessary to increase the degree of subcooling of the working fluid entering the circulating pump 3, it is necessary to increase the response of the condenser 13 to the liquid return. The heat exchange efficiency of the working fluid in the pipeline 8 can be increased by increasing the opening of the three-way valve 12 to the first branch 14 and/or reducing the opening of the second branch 15 to increase cooling The flow rate and/or flow rate of the liquid in the first branch 14 to improve the heat exchange efficiency. Conversely, by reducing the opening of the three-way valve 12 to the first branch 14 and/or increasing the opening of the second branch 15, the flow rate and /or flow rate to reduce heat transfer efficiency. Further, the above-mentioned control of the three-way valve 12 can be automatically realized by the controller. As shown in FIG. 2 , the temperature control system 100 of this embodiment further includes a communication connection with the first pressure and temperature sensor 2 and the three-way valve 12 the controller 16. The controller 16 may be a processor or a hardware circuit. By setting the controller 16, the subcooling degree of the working fluid can be monitored and calculated in real time, and the three-way valve 12 can be automatically controlled according to the current subcooling degree of the working fluid to control the heat exchange efficiency of the working fluid at the condenser 13, thereby realizing automatic control. The subcooling of the working fluid.
本申请的第二实施方式涉及另一种控温***100’，如图3所示。第二实施方式提供的控温***100’与第一实施方式提供的控温***100大体相同，不同之处在于，第二实施方式提供的控温***100’还包括设置在出液管路4上的预热器9以及第二压力和温度传感器2’。预热器9以及第二压力和温度传感器2’沿出液管路4的工质输送方向分别布置在回热器5与出液口6之间。The second embodiment of the present application relates to another temperature control system 100', as shown in FIG. 3 . The temperature control system 100 ′ provided in the second embodiment is substantially the same as the temperature control system 100 provided in the first embodiment, except that the temperature control system 100 ′ provided in the second embodiment further includes a temperature control system 100 ′ provided in the liquid outlet pipeline 4 . The preheater 9 on the upper and the second pressure and temperature sensor 2'. The preheater 9 and the second pressure and temperature sensor 2' are respectively arranged between the regenerator 5 and the liquid outlet 6 along the working medium conveying direction of the liquid outlet pipeline 4.
当待控温设备的功耗发生剧烈变化时，回热器5不能完全确保两相工质被加热到饱和状态，因此进入待控温设备的工质仍存在过冷度。因此，预热器9以及第二压力和温度传感器2’的设置可以避免此类问题。第二压力和温度传感器2’设置在靠近出液口6的位置，用于检测流入待控温设备前的工质的第二压力和第二温度。根据检测得到的第二压力和第二温度，可以计算出相应的过冷度。若工质在进入待控温设备前仍存在过冷度，即计算得到的过冷度不为零，则可以控制打开预热器9或增大预热器的加热功率，进一步升高工质的温度。由此，可以消除工质的过冷度，保证工质以饱和状态进入待控温设备。进一步地，上述计算和控制皆可以通过控制器来自动实现，如图4所述，此时控制器16与第二压力和温度传感器2’以及预热器9通信连接。控制器16可以是处理器或者是硬件电路。通过设置控制器16，除了实现如第一实施方式所描述的效果外，还可以根据当前工质的过冷度自动预热器9的加热功率，从而实现自动控制工质的过冷度。When the power consumption of the equipment to be temperature controlled changes drastically, the regenerator 5 cannot completely ensure that the two-phase working medium is heated to a saturated state, so the working medium entering the equipment to be temperature controlled still has a degree of subcooling. Therefore, the provision of the preheater 9 and the second pressure and temperature sensor 2' can avoid such problems. The second pressure and temperature sensor 2' is arranged at a position close to the liquid outlet 6, and is used to detect the second pressure and the second temperature of the working medium before flowing into the temperature control device. According to the detected second pressure and second temperature, the corresponding subcooling degree can be calculated. If the working fluid still has a degree of subcooling before entering the temperature-controlled equipment, that is, the calculated degree of subcooling is not zero, the preheater 9 can be controlled to open or the heating power of the preheater can be increased to further increase the working fluid temperature. In this way, the subcooling degree of the working fluid can be eliminated, and the working fluid can be guaranteed to enter the temperature-controlled equipment in a saturated state. Further, the above calculation and control can be automatically realized by the controller, as shown in FIG. The controller 16 may be a processor or a hardware circuit. By setting the controller 16, in addition to achieving the effects described in the first embodiment, the heating power of the preheater 9 can be automatically controlled according to the subcooling degree of the current working medium, thereby realizing automatic control of the subcooling degree of the working medium.
需要说明的是，本申请第一实施方式提供的各个部件的结构、材质等设计方案同样可以应用于第二实施方式提供的控温***100’中，在此不再赘述。It should be noted that the design solutions such as the structure and material of each component provided in the first embodiment of the present application can also be applied to the temperature control system 100' provided in the second embodiment, and will not be repeated here.
本申请的第三实施方式还涉及一种通讯设备300，如图5所示，其包括蒸发器200、以及如前述第一实施方式所述的控温***100或如前述第二实施方式所述的控温***100’。蒸发器200包括入口和出口，该入口连接控温***100(100’)的出液口6，该出口连接控温***100(100’)的回液口7。The third embodiment of the present application also relates to a communication device 300 , as shown in FIG. 5 , which includes an evaporator 200 , and the temperature control system 100 as described in the aforementioned first embodiment or as described in the aforementioned second embodiment The temperature control system 100'. The evaporator 200 includes an inlet and an outlet, the inlet is connected to the liquid outlet 6 of the temperature control system 100 (100'), and the outlet is connected to the liquid return port 7 of the temperature control system 100 (100').
本申请的第四实施方式还涉及一种温度控制方法，如图6所示。本实施例中的温度控制方法可以适用于如前述第一实施方式所述的控温***100或如前述第二实施方式所述的控温***100’。本实施例中的温度控制方法包括如下步骤。The fourth embodiment of the present application also relates to a temperature control method, as shown in FIG. 6 . The temperature control method in this embodiment can be applied to the temperature control system 100 described in the foregoing first embodiment or the temperature control system 100' described in the foregoing second embodiment. The temperature control method in this embodiment includes the following steps.
步骤401：检测工质在进入循环泵前的第一温度和第一压力。在此步骤中，可以通过布 置在靠近循环泵3入口的位置(或布置在循环泵3入口)处的第一压力和温度传感器2，测量工质在进入循环泵3前的第一温度T 1和第一压力P 1。 Step 401: Detect the first temperature and first pressure of the working medium before entering the circulating pump. In this step, the first temperature T 1 of the working fluid before entering the circulating pump 3 can be measured by the first pressure and temperature sensor 2 arranged near the inlet of the circulating pump 3 (or arranged at the inlet of the circulating pump 3 ). and the first pressure P 1 .
步骤402：根据第一温度和第一压力计算第一过冷度。在此步骤中，可以通过与第一压力和温度传感器2通信连接的控制器16，根据第一压力P 1获得工质在该第一压力P 1下所对应的第一饱和温度T s1，并根据第一温度T 1和第一饱和温度T s1计算工质在进入循环泵3前的第一过冷度ΔT 1＝T s1-T 1。 Step 402: Calculate the first degree of subcooling according to the first temperature and the first pressure. In this step, the first saturation temperature T s1 corresponding to the working fluid under the first pressure P 1 can be obtained according to the first pressure P 1 through the controller 16 connected in communication with the first pressure and temperature sensor 2 , and The first subcooling degree ΔT 1 =T s1 −T 1 of the working fluid before entering the circulating pump 3 is calculated according to the first temperature T 1 and the first saturation temperature T s1 .
步骤403：基于第一过冷度冷却工质。在此步骤中，可以通过与冷却装置10通信连接的控制器16根据第一过冷度ΔT 1控制冷却装置10对流经冷却装置10处的工质的冷却程度。在上述的一些实施例中，控制器16可以根据第一过冷度ΔT 1控制三通阀12增大对第一支路14的开度和/或减小对第二支路15的开度、或减小对第一支路14的开度和/或增大对第二支路15的开度。 Step 403: Cool the working fluid based on the first degree of subcooling. In this step, the degree of cooling of the working fluid passing through the cooling device 10 by the cooling device 10 may be controlled by the controller 16 in communication with the cooling device 10 according to the first degree of subcooling ΔT 1 . In some of the above embodiments, the controller 16 may control the three-way valve 12 to increase the opening of the first branch 14 and/or decrease the opening of the second branch 15 according to the first subcooling degree ΔT 1 , or reduce the opening of the first branch 14 and/or increase the opening of the second branch 15 .
本申请的第五实施方式还涉及另一种温度控制方法，如图7所示。第五实施方式提供的温度控制方法中的步骤501-503与第四实施方式提供的温度控制方法的步骤401-403大体相同，在此不再赘述。不同之处在于，第五实施方式提供的温度控制方法还包括以下步骤。The fifth embodiment of the present application also relates to another temperature control method, as shown in FIG. 7 . Steps 501 to 503 in the temperature control method provided by the fifth embodiment are substantially the same as steps 401 to 403 of the temperature control method provided by the fourth embodiment, and are not repeated here. The difference is that the temperature control method provided by the fifth embodiment further includes the following steps.
步骤504：检测工质在流出回热器后的第二温度和第二压力。在此步骤中，可以通过布置在回热器5后的第二压力和温度传感器2’，测量工质在流出回热器5后的第二温度T 2和第二压力P 2。 Step 504: Detect the second temperature and the second pressure of the working medium after flowing out of the regenerator. In this step, the second temperature T 2 and the second pressure P 2 of the working fluid after flowing out of the regenerator 5 can be measured by the second pressure and temperature sensor 2 ′ arranged after the regenerator 5 .
步骤505：根据第二温度和第二压力计算第二过冷度。在此步骤中，可以通过与第二压力和温度传感器2’通信连接的控制器16，根据第二压力P 2获得工质在第二压力P 2下所对应的第二饱和温度T s2，并根据第二温度T 2和第二饱和温度T s2计算工质在流出回热器5后的第二过冷度ΔT 2＝T s2-T 2。 Step 505: Calculate the second degree of subcooling according to the second temperature and the second pressure. In this step, the second saturation temperature T s2 corresponding to the working fluid under the second pressure P 2 can be obtained according to the second pressure P 2 through the controller 16 connected in communication with the second pressure and temperature sensor 2 ′, and According to the second temperature T 2 and the second saturation temperature T s2 , the second subcooling degree ΔT 2 =T s2 −T 2 of the working fluid after flowing out of the regenerator 5 is calculated.
步骤506：基于第二过冷度加热工质。在此步骤中，可以通过与预热器9通信连接的控制器16根据第二过冷度ΔT 2控制预热器9对流经预热器9处的工质的加热程度。在上述的一些实施例中，控制器16可以根据第二过冷度ΔT 2控制预热器9增大或减小加热功率。 Step 506: Heating the working medium based on the second degree of subcooling. In this step, the degree of heating of the working medium flowing through the preheater 9 by the preheater 9 may be controlled according to the second degree of subcooling ΔT 2 by the controller 16 in communication with the preheater 9 . In some of the above-mentioned embodiments, the controller 16 may control the preheater 9 to increase or decrease the heating power according to the second subcooling degree ΔT 2 .
在此需要说明的是，在本申请中所提及的饱和温度指的是工质的气相和液相处于动态平衡状态(即饱和状态)时所具有的温度。在工质处于饱和状态时，其温度与压力不是独立的，而是一一对应的，这种对应关系与工质的物性相关。因此，在给定压力值的情况下，则可以获得工质在该压力下所对应的饱和温度值，例如，可以通过查表(例如，由化学工业出版社出版的《化学化工物性数据手册》记载了不同物料的物性数据)的方式获得。It should be noted here that the saturation temperature mentioned in this application refers to the temperature at which the gas phase and the liquid phase of the working fluid are in a dynamic equilibrium state (ie, a saturated state). When the working medium is in a saturated state, its temperature and pressure are not independent, but have a one-to-one correspondence, and this correspondence is related to the physical properties of the working medium. Therefore, in the case of a given pressure value, the saturation temperature value corresponding to the working fluid under the pressure can be obtained. Record the physical property data of different materials).
本领域的普通技术人员可以理解，上述各实施方式是实现本申请的具体实施例，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本申请的精神和范围。Those of ordinary skill in the art can understand that the above-mentioned embodiments are specific examples for realizing the present application, and in practical applications, various changes can be made in form and details without departing from the spirit and the spirit of the present application. Scope.

Claims (10)

  1. 一种控温***，包括工质储液箱、出液管路、回液管路、出液口和回液口，所述出液管路一端连接所述工质储液箱的出口、另一端连接所述出液口，所述回液管路一端连接所述回液口、另一端连接所述工质储液箱的入口，沿所述出液管路的工质输送方向依次设置有第一压力和温度传感器、循环泵、和回热器，沿所述回液管路的工质输送方向依次设置有所述回热器、和冷却装置，所述出液管路与所述回液管路在所述回热器处交换热量且互不连通，所述出液口与所述回液口分别用于连接待控温设备的入口和出口。A temperature control system includes a working medium liquid storage tank, a liquid outlet pipeline, a liquid return pipeline, a liquid outlet and a liquid return port, and one end of the liquid outlet pipeline is connected to the outlet of the working medium liquid storage tank, and the other One end is connected to the liquid outlet, one end of the liquid return line is connected to the liquid return port, and the other end is connected to the inlet of the working medium liquid storage tank. A first pressure and temperature sensor, a circulating pump, and a regenerator are sequentially provided with the regenerator and cooling device along the working medium conveying direction of the liquid return pipeline, and the liquid outlet pipeline is connected to the return pipeline. The liquid pipelines exchange heat at the regenerator and are not communicated with each other, and the liquid outlet and the liquid return port are respectively used to connect the inlet and the outlet of the temperature-controlled equipment.
  2. 根据权利要求1所述的控温***，其中，还包括与所述第一压力和温度传感器和所述冷却装置连接的控制器，所述控制器用于根据所述第一压力和温度传感器测量的压力值和温度值控制所述冷却装置的工作状态。The temperature control system of claim 1, further comprising a controller connected to the first pressure and temperature sensor and the cooling device, the controller for The pressure value and the temperature value control the working state of the cooling device.
  3. 根据权利要求1或2所述的控温***，其中，所述冷却装置包括冷却液储液箱、冷凝器和冷却管路，所述冷却管路将所述冷却液储液箱的出口与所述冷凝器的入口连接、且将所述冷却液储液箱的入口与所述冷凝器的出口连接，所述回液管路与所述冷却管路在所述冷凝器处交换热量且互不连通。The temperature control system according to claim 1 or 2, wherein the cooling device comprises a cooling liquid storage tank, a condenser and a cooling pipeline, and the cooling pipeline connects the outlet of the cooling liquid storage tank with the cooling liquid storage tank. The inlet of the condenser is connected, and the inlet of the cooling liquid storage tank is connected with the outlet of the condenser, and the liquid return line and the cooling line exchange heat at the condenser and are mutually independent. Connected.
  4. 根据权利要求3所述的控温***，其中，所述冷却管路包括与所述冷却液储液箱的出口相连的三通阀、以及设置在所述三通阀与冷却液储液箱的入口之间的第一支路和第二支路，所述冷凝器位于所述第一支路上。The temperature control system according to claim 3, wherein the cooling pipeline comprises a three-way valve connected with the outlet of the cooling liquid storage tank, and a three-way valve disposed between the three-way valve and the cooling liquid storage tank The first branch and the second branch between the inlets, the condenser is located on the first branch.
  5. 根据权利要求4所述的控温***，其中，还包括与所述第一压力和温度传感器和所述三通阀通信连接的控制器，所述控制器用于根据所述第一压力和温度传感器测量的压力值和温度值控制所述三通阀的开度。The temperature control system of claim 4, further comprising a controller communicatively connected to the first pressure and temperature sensor and the three-way valve, the controller configured to respond to the first pressure and temperature sensor according to the The measured pressure value and temperature value control the opening of the three-way valve.
  6. 根据权利要求1至5任一项所述的控温***，其中，还包括设置在所述回热器与所述出液口之间的预热器以及第二压力和温度传感器，所述预热器和所述第二压力和温度传感器沿所述出液管路的工质输送方向依次布置。The temperature control system according to any one of claims 1 to 5, further comprising a preheater and a second pressure and temperature sensor disposed between the regenerator and the liquid outlet, the preheater The heater and the second pressure and temperature sensor are arranged in sequence along the working medium conveying direction of the liquid outlet pipeline.
  7. 根据权利要求6所述的控温***，其中，还包括与所述第二压力和温度传感器和所述预热器通信连接的控制器，所述控制器用于根据所述第二压力和温度传感器测量的压力值和温度值控制所述预热器的加热功率。6. The temperature control system of claim 6, further comprising a controller in communication with the second pressure and temperature sensor and the preheater, the controller for responsive to the second pressure and temperature sensor The measured pressure and temperature values control the heating power of the preheater.
  8. 一种通讯设备，包括蒸发器、以及根据权利要求1至7任一项所述的控温***，所述蒸发器包括入口和出口，所述控温***的出液口连接所述蒸发器的入口，所述控温***的回液口连接所述蒸发器的出口。A communication device, comprising an evaporator and a temperature control system according to any one of claims 1 to 7, wherein the evaporator comprises an inlet and an outlet, and a liquid outlet of the temperature control system is connected to a The inlet, the liquid return port of the temperature control system is connected to the outlet of the evaporator.
  9. 一种温度控制方法，其用于根据权利要求1所述的控温***，包括：A temperature control method, which is used in the temperature control system according to claim 1, comprising:
    检测工质在进入循环泵前的第一温度和第一压力；Detect the first temperature and first pressure of the working medium before entering the circulating pump;
    根据所述第一温度和所述第一压力计算第一过冷度；calculating a first degree of subcooling according to the first temperature and the first pressure;
    基于所述第一过冷度冷却工质。The working fluid is cooled based on the first degree of subcooling.
  10. 根据权利要求9所述的温度控制方法，其中，所述方法还包括：The temperature control method of claim 9, wherein the method further comprises:
    检测工质在流出回热器后的第二温度和第二压力；Detecting the second temperature and second pressure of the working fluid after flowing out of the regenerator;
    根据所述第二温度和所述第二压力计算第二过冷度；calculating a second degree of subcooling according to the second temperature and the second pressure;
    基于所述第二过冷度加热工质。The working fluid is heated based on the second degree of subcooling.
PCT/CN2021/115817 2020-09-02 2021-08-31 Temperature control system, communication device, and temperature control method WO2022048547A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010909156.7A CN114206058A (en) 2020-09-02 2020-09-02 Temperature control system, communication equipment and temperature control method
CN202010909156.7 2020-09-02

Publications (1)

Publication Number Publication Date
WO2022048547A1 true WO2022048547A1 (en) 2022-03-10

Family

ID=80491618

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/115817 WO2022048547A1 (en) 2020-09-02 2021-08-31 Temperature control system, communication device, and temperature control method

Country Status (2)

Country Link
CN (1) CN114206058A (en)
WO (1) WO2022048547A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114816014A (en) * 2022-06-01 2022-07-29 兰洋(宁波)科技有限公司 Self-adaptive multi-mode cooling system
CN115097877A (en) * 2022-06-17 2022-09-23 广东海悟科技有限公司 Liquid cooling system vaporization prevention control method and liquid cooling system
WO2024103762A1 (en) * 2022-11-18 2024-05-23 青岛海尔空调器有限总公司 Liquid cooling unit and control method therefor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110127027A1 (en) * 2009-12-01 2011-06-02 Hitachi Plant Technologies, Ltd. Cooling method and cooling system of electronic device
CN206042651U (en) * 2016-08-31 2017-03-22 中车大连机车研究所有限公司 Electric multiple unit traction current transformation ware intelligent cooling system
US20180139870A1 (en) * 2016-11-11 2018-05-17 Stulz Air Technology Systems, Inc. Dual mass cooling precision system
CN108495526A (en) * 2018-04-12 2018-09-04 合肥天鹅制冷科技有限公司 The cold liquid supply system of self-adaptive temperature
CN110736551A (en) * 2019-11-15 2020-01-31 中国科学院上海技术物理研究所启东光电遥感中心 large-area source blackbody radiation source based on gas-liquid two-phase backflow temperature control
CN110822961A (en) * 2019-11-26 2020-02-21 中国航空工业集团公司沈阳飞机设计研究所 Two-phase fluid cooling system
CN111148413A (en) * 2020-01-17 2020-05-12 北京中电国核节能环保科技股份有限公司 Converter valve cooling system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110127027A1 (en) * 2009-12-01 2011-06-02 Hitachi Plant Technologies, Ltd. Cooling method and cooling system of electronic device
CN206042651U (en) * 2016-08-31 2017-03-22 中车大连机车研究所有限公司 Electric multiple unit traction current transformation ware intelligent cooling system
US20180139870A1 (en) * 2016-11-11 2018-05-17 Stulz Air Technology Systems, Inc. Dual mass cooling precision system
CN108495526A (en) * 2018-04-12 2018-09-04 合肥天鹅制冷科技有限公司 The cold liquid supply system of self-adaptive temperature
CN110736551A (en) * 2019-11-15 2020-01-31 中国科学院上海技术物理研究所启东光电遥感中心 large-area source blackbody radiation source based on gas-liquid two-phase backflow temperature control
CN110822961A (en) * 2019-11-26 2020-02-21 中国航空工业集团公司沈阳飞机设计研究所 Two-phase fluid cooling system
CN111148413A (en) * 2020-01-17 2020-05-12 北京中电国核节能环保科技股份有限公司 Converter valve cooling system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114816014A (en) * 2022-06-01 2022-07-29 兰洋(宁波)科技有限公司 Self-adaptive multi-mode cooling system
CN114816014B (en) * 2022-06-01 2024-02-02 兰洋(宁波)科技有限公司 Self-adaptive multi-mode cooling system
CN115097877A (en) * 2022-06-17 2022-09-23 广东海悟科技有限公司 Liquid cooling system vaporization prevention control method and liquid cooling system
CN115097877B (en) * 2022-06-17 2024-01-30 广东海悟科技有限公司 Vaporization prevention control method for liquid cooling system and liquid cooling system
WO2024103762A1 (en) * 2022-11-18 2024-05-23 青岛海尔空调器有限总公司 Liquid cooling unit and control method therefor

Also Published As

Publication number Publication date
CN114206058A (en) 2022-03-18

Similar Documents

Publication Publication Date Title
WO2022048547A1 (en) Temperature control system, communication device, and temperature control method
US8322154B2 (en) Control of system coolant to facilitate two-phase heat transfer in a multi-evaporator cooling system
US9200851B2 (en) Pressure control unit and method facilitating single-phase heat transfer in a cooling system
US20190343026A1 (en) Liquid cooling system for cabinet server
TWI711920B (en) Coolant distribution unit
US10248142B2 (en) Cooling apparatus, cooling method, and data processing system
CN109496110B (en) Data center cooling system with loop heat pipe and refrigeration cycle pipeline directly connected
CN206522940U (en) A kind of energy-saving water circulation cooling device
TW201515563A (en) Heat dissipating system
EP3361201A1 (en) Dual-mode thermal management loop
WO2023126025A1 (en) Refrigerant heat dissipation system for frequency converter of water chiller unit
CN112078806A (en) Helicopter liquid cooling integrated control system
US20140269797A1 (en) System for cooling electronic components
WO2019114368A1 (en) Energy-saving loop heat pipe apparatus and application
WO2019001118A1 (en) Cooling system
TWI675263B (en) Liquid temperature control device and method
WO2023142314A1 (en) Distributed pumped two-phase cooling system for aircraft
TW201947350A (en) Water cooling system using for rack server
CN203785306U (en) Special water cooler for carbon dioxide laser
CN106852086B (en) Double-stage serial liquid-gas double-channel natural cooling data center heat dissipation system
CN106912185B (en) Internal circulation parallel type two-stage liquid-gas dual-channel natural cooling data center heat dissipation system
CN207212790U (en) Oil cooler
US11956922B2 (en) Multiple chambers connection module for cooling streams
WO2022110744A1 (en) Data center device
CN116917683A (en) microchannel heat exchanger

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21863611

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 07.07.2023)

122 Ep: pct application non-entry in european phase

Ref document number: 21863611

Country of ref document: EP

Kind code of ref document: A1