WO2024036652A1 - Apparatus for measuring heat dissipation of liquid-cooling device - Google Patents
Apparatus for measuring heat dissipation of liquid-cooling device Download PDFInfo
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- WO2024036652A1 WO2024036652A1 PCT/CN2022/114149 CN2022114149W WO2024036652A1 WO 2024036652 A1 WO2024036652 A1 WO 2024036652A1 CN 2022114149 W CN2022114149 W CN 2022114149W WO 2024036652 A1 WO2024036652 A1 WO 2024036652A1
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- liquid cooling
- cooling equipment
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- 238000001816 cooling Methods 0.000 title claims abstract description 102
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 92
- 238000004364 calculation method Methods 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims description 8
- 239000012774 insulation material Substances 0.000 claims description 5
- 238000000691 measurement method Methods 0.000 abstract description 2
- 238000013480 data collection Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
- G01K17/06—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device
- G01K17/08—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
Definitions
- the invention belongs to the technical field of heat measurement. Specifically, it relates to a device for measuring heat dissipation of liquid cooling equipment.
- Some high-precision electronic equipment generally requires water cooling during normal operation. The first is to prevent the impact of over-temperature on performance, stabilize the operating temperature of the equipment, and ensure constant temperature and high efficiency. The second is to prevent high-precision electronic equipment from leaking to the surroundings when working. Heat is emitted into the environment, affecting the performance of other sensitive equipment. For this reason, there must be a strict control on the temperature of water-cooled electronic equipment and the heat it dissipates into the surrounding environment. However, how to accurately measure the temperature of water-cooled electronic equipment and the heat dissipated into the surrounding environment has become a difficult problem.
- thermometer and heat flow meter to measure the temperature and heat flux density on the surface of the electronic equipment being measured, and then calculate the heat dissipation.
- This method has certain feasibility for environments with large heat dissipation and low accuracy requirements.
- the feasibility of this method is poor. Therefore, there is an urgent need for a device that can accurately measure the heat dissipation of equipment.
- the purpose of the present invention is to design a simple, fast and accurate heat dissipation measuring device for liquid cooling equipment in situations where the heat dissipation is small and the accuracy requirements are high.
- the specific technical solution is as follows:
- a device for measuring heat dissipation of liquid cooling equipment including:
- a cavity is used to place liquid cooling equipment, and an air inlet and an air outlet are provided on the cavity;
- a data acquisition module includes a temperature sensor and a flow sensor, wherein the temperature sensor is used to measure the temperature at the surface of the liquid cooling device, the air inlet and the air outlet, and the flow sensor is used to measure the air inlet and the air outlet. The mass flow rate at the air outlet;
- the heat dissipation calculation module determines the heat dissipation rate of the liquid cooling equipment based on the specific heat capacity of the air, the mass flow rate of the air outlet, and the air temperature difference between the air inlet and the air outlet.
- the cavity includes two inner and outer thermal insulation layers, wherein the inner thermal insulation layer is a vacuum layer and the outer thermal insulation layer is a thermal insulation material.
- the temperature sensor includes a temperature sensor on the surface of the liquid cooling device, a temperature sensor at the air inlet, and a temperature sensor at the air outlet.
- the cavity is a horizontal cylinder
- the air inlet is in the middle of one end of the cavity
- the air outlet is in the upper half of the other end of the cavity
- an inlet hole for placing liquid cooling equipment is provided at the other end of the cavity
- the inlet hole is provided with a through-plate joint, and the liquid cooling inlet and outlet pipes and equipment cables of the liquid cooling equipment pass through the through-plate joint.
- a support part is also provided, and the support part includes:
- a liquid cooling equipment support frame including a liftable bracket and a support platform, is provided in the cavity to support the liquid cooling equipment;
- the fixing clip is on the side of the liquid cooling equipment support frame to fix the cables and the liquid cooling inlet and outlet pipes.
- the liquid cooling equipment support frame and the fixing clip are made of thermal insulation material.
- a light strip is provided in the cavity, and the light strip is connected to a sensor that senses the opening and closing of the inlet hole.
- the heat dissipation calculation module uses the input first temperature to adjust the air intake volume so that the average surface temperature of the liquid cooling equipment is equal to the input first temperature, and then measures the mass flow rate of the air outlet, and calculates the amount of air inlet according to the input first temperature. Calculate the heat dissipation rate of liquid cooling equipment,
- C P is the specific heat capacity of air
- T 2 is the average air temperature at the air outlet
- T 1 is the average air temperature at the air inlet
- the first temperature refers to the average surface temperature of the liquid cooling equipment when it is not placed in the cavity and is running.
- the heat dissipation calculation module gradually increases the air intake volume to make the average surface temperature of the liquid cooling equipment tend to be constant, and then measures and obtains the mass flow rate of the air outlet, and based on Calculate the heat dissipation rate of liquid cooling equipment,
- C P is the specific heat capacity of air
- T 2 is the average air temperature at the air outlet
- T 1 is the average air temperature at the air inlet.
- the present invention can measure the heat emitted by the liquid cooling equipment absorbed by the air passing through the cavity to determine the heat dissipation of the liquid cooling equipment. Moreover, different measurement methods can be used to obtain sensor data according to the operating and standby states of the liquid cooling equipment, and the heat dissipation of the liquid cooling equipment in operating and standby states can be obtained respectively.
- Figure 1 is a schematic cross-sectional view of a heat dissipation measuring device for liquid cooling equipment according to an embodiment of the present invention
- Figure 2 is a front view of the heat dissipation measuring device of liquid cooling equipment according to the embodiment of the present invention.
- cavity 1 metal layer 2, vacuum layer 3, insulation layer 5, radiation protection film 7, support platform 8, liquid cooling equipment support frame 9, fixing clip 10, light strip 11, air inlet 12, air outlet 13 , inlet hole 14, through-plate joint 15, cavity support 16, inlet temperature sensor 17, outlet temperature sensor 18, observation window 19.
- liquid cooling equipment refers to electronic equipment with a liquid cooling device.
- the device for measuring the heat dissipation of liquid cooling equipment in this embodiment includes a cavity 1, a support part, a data acquisition module, and a heat dissipation calculation module.
- the cavity 1 is used to place the liquid cooling equipment, and the cavity support 16 is used to support the entire cavity.
- the cavity 1 is provided with an air inlet and an air outlet.
- the wall of the cavity 1 has a five-layer structure. From the inside to the outside, they are a metal layer 2, a vacuum layer 3, a metal layer 2, an insulation layer (such as polyurethane) 5, and a metal layer 2.
- the metal layer 2 inside the vacuum layer faces the cavity.
- the inner side is also coated with a radiation-proof film 7.
- the data acquisition module includes multiple temperature sensors and multiple flow sensors, and a temperature sensor is provided on the surface of the liquid cooling device.
- the air inlet 12 is located at the center of one end of the cavity 1.
- An inlet temperature sensor 17 is installed at the air inlet, and a flow sensor is installed in front of the air inlet 12; the air outlet 13 is located in the upper half of the other end of the cavity 1, and the air outlet 13
- An outlet temperature sensor 18 is installed, and a flow sensor is connected behind it.
- the heat dissipation calculation module uses the input first temperature to adjust the air intake volume so that the average surface temperature of the liquid cooling equipment is equal to the input first temperature, and then measures the mass flow rate of the air outlet, where the first temperature refers to the liquid cooling The average surface temperature of the equipment when it is not placed in the cavity and is running.
- the heat dissipation calculation module does not obtain in advance the average surface temperature of the liquid cooling equipment when it is not placed in the cavity, and gradually increases the air intake volume to make the average surface temperature of the liquid cooling equipment become constant, and then the measurement is obtained. Mass flow rate of air outlet.
- the tendency to be constant means that the average surface temperature of the liquid cooling equipment is stable at the specified normal operating temperature, that is, it is stable at a certain temperature, or no longer changes within a temperature range.
- the heat dissipation calculation module is also based on the formula Calculate the heat dissipation rate of liquid cooling equipment
- C P is the specific heat capacity of air
- T 2 is the average air temperature at the air outlet
- T 1 is the average air temperature at the air inlet.
- the heat dissipation calculation module may be stored in a memory, and the memory is used to store program codes and various data, and is executed by a processor to obtain the air outlet mass flow rate and calculate the heat dissipation rate of the liquid cooling equipment.
- the support part includes a liquid cooling equipment support frame 9 and a support platform 8.
- the liquid cooling equipment support frame 9 is located at the bottom of the cavity 1, and above it is a support platform 8.
- the support platform 8 is located below the central axis, so that it The supported liquid cooling equipment is located on the central axis.
- the fixing clip 10 is located on the insulating bracket 9 and is used to fix the liquid cooling inlet and outlet pipes, power cords and data transmission lines of the temperature sensor of the liquid cooling equipment.
- the liquid cooling equipment support frame 9 and the fixing clip 10 are made of thermal insulation materials to prevent obvious heat exchange through the support structure and ensure the accuracy of the measurement results.
- an inlet hole 14 at the other end of the cavity to facilitate the entry and exit of the liquid cooling equipment into the cavity; an observation window 19 is provided on the upper part of the cavity 1, preferably directly above and oriented at a certain angle for observing the inside of the cavity. The placement of the liquid cooling equipment under test.
- a light strip 11 is also provided in the cavity, and a set of light strips is arranged around the circumferential direction of the cavity on the wall of the cavity near the entrance hole to ensure that the cavity Brightness of the internal operating space.
- a sensor is installed in the cavity to control the light strip.
- the light strip is connected to a sensor that senses the opening and closing of the inlet. When the cavity is opened, the light strip lights up; when the cavity is closed, the light strip extinguished.
- a through-plate connector is provided at the bottom of the inlet hole, and the equipment power cord, liquid cooling inlet and outlet pipes, data transmission lines of each sensor, power cord of the light strip 11, etc. will all pass through the through-plate connector 15 cavity.
- C P is the specific heat capacity of air
- T2 is the average air temperature at the air outlet
- T 1 is the average air temperature at the air inlet.
- Another situation is to measure the heat dissipated by the motor to the surrounding environment without obtaining the average surface temperature of the liquid cooling device when it is not placed in the cavity and is specifically described below.
- the general method is the same as the first case above, because when the air intake volume is within a certain range, the air intake volume should change linearly with the surface temperature of the liquid cooling equipment. However, when the air intake volume is continuously increased, the surface temperature of the liquid cooling equipment will change. will tend to be constant. After becoming constant, record each temperature value and the air outlet mass flow rate, and use Formula 1 to calculate the heat dissipation rate of the liquid cooling equipment.
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Abstract
An apparatus for measuring the heat dissipation of a liquid-cooling device, the apparatus comprising: a cavity (1), which is used for placing a liquid-cooling device (200), wherein the cavity (1) is provided with an air inlet and an air outlet; a data collection module, which comprises temperature sensors (17, 18) and a flow sensor, wherein the temperature sensors (17, 18) measure temperatures at the surface of the liquid-cooling device (200), the air inlet and the air outlet, and the flow sensor measures mass flow rates at the air inlet and the air outlet; and a heat dissipation calculation module, which determines the heat dissipation rate of the liquid-cooling device (200) according to the specific heat capacity of air, the mass flow rate at the air outlet, and the difference between the temperatures of air at the air inlet and the air outlet. By means of placing a liquid-cooling device (200) in a cavity (1), the apparatus can determine the heat dissipation of the liquid-cooling device (200) by means of measuring heat absorbed by air that passes through the cavity (1), which heat is dissipated by the liquid-cooling device (200); and according to whether the average surface temperature of the liquid-cooling device (200) when operating without being placed in the cavity (1) is obtained in advance, sensor data can be obtained by using different measurement methods, so as to respectively obtain the heat dissipation of the liquid cooling device (200).
Description
本发明属于热量测量技术领域，具体的，涉及一种液冷设备散热量测量装置。The invention belongs to the technical field of heat measurement. Specifically, it relates to a device for measuring heat dissipation of liquid cooling equipment.
一些高精电子设备在正常工作时，一般需要水冷处理，其意义一是在于防止过温对性能的影响，稳定设备工作时温度，保证恒温高效；意义二在于避免高精电子设备工作时向周围环境中散发热量，影响其他敏感设备的性能。为此，对于经过水冷处理的电子设备的温度和其散发到周围环境中的热量必须有一个严格的控制。但是，如何精确地测量水冷处理后的电子设备的温度和其散发到周围环境中的热量，成为了一个难题。Some high-precision electronic equipment generally requires water cooling during normal operation. The first is to prevent the impact of over-temperature on performance, stabilize the operating temperature of the equipment, and ensure constant temperature and high efficiency. The second is to prevent high-precision electronic equipment from leaking to the surroundings when working. Heat is emitted into the environment, affecting the performance of other sensitive equipment. For this reason, there must be a strict control on the temperature of water-cooled electronic equipment and the heat it dissipates into the surrounding environment. However, how to accurately measure the temperature of water-cooled electronic equipment and the heat dissipated into the surrounding environment has become a difficult problem.
目前，对于测量水冷处理后的电子设备的温度和其散发到周围环境中的热量，较常用的方法是用温度计和热流计测量被测电子设备表面的温度和热流密度，然后计算散热量。这种方法对于散热量较大、精度要求不高的环境，有一定的可行性。但对于散热量较小、精度要求较高的场合，该方法的可行性较差。因此，急需一种可以精确测量设备散热量的装置。Currently, to measure the temperature of water-cooled electronic equipment and the heat dissipated into the surrounding environment, the most common method is to use a thermometer and heat flow meter to measure the temperature and heat flux density on the surface of the electronic equipment being measured, and then calculate the heat dissipation. This method has certain feasibility for environments with large heat dissipation and low accuracy requirements. However, for situations where the heat dissipation is small and the accuracy requirements are high, the feasibility of this method is poor. Therefore, there is an urgent need for a device that can accurately measure the heat dissipation of equipment.
发明内容Contents of the invention
本发明的目的在于达到在散热量较小、精度要求较高的场合，设计一款简易、快速、精确的液冷设备散热量测量装置，具体技术方案如下：The purpose of the present invention is to design a simple, fast and accurate heat dissipation measuring device for liquid cooling equipment in situations where the heat dissipation is small and the accuracy requirements are high. The specific technical solution is as follows:
一种液冷设备散热量测量装置，包括：A device for measuring heat dissipation of liquid cooling equipment, including:
腔体，用于放置液冷设备，在所述腔体上设置有空气进口和空气出口；A cavity is used to place liquid cooling equipment, and an air inlet and an air outlet are provided on the cavity;
数据采集模块，包括温度传感器和流量传感器，其中所述温度传感器用于测量所述液冷设备的表面、所述空气进口和所述空气出口处的温度，流量传感器用于测量所述空气进口和所述空气出口处的质量流量；A data acquisition module includes a temperature sensor and a flow sensor, wherein the temperature sensor is used to measure the temperature at the surface of the liquid cooling device, the air inlet and the air outlet, and the flow sensor is used to measure the air inlet and the air outlet. The mass flow rate at the air outlet;
散热量计算模块，根据空气的比热容、所述空气出口的质量流量，以及所述空气进口与所述空气出口的空气温度差值确定液冷设备散热速率。The heat dissipation calculation module determines the heat dissipation rate of the liquid cooling equipment based on the specific heat capacity of the air, the mass flow rate of the air outlet, and the air temperature difference between the air inlet and the air outlet.
可选地，所述腔体包括内外两层绝热层，其中内绝热层为真空层，外绝热层为绝热材料。Optionally, the cavity includes two inner and outer thermal insulation layers, wherein the inner thermal insulation layer is a vacuum layer and the outer thermal insulation layer is a thermal insulation material.
可选地，所述温度传感器包括在液冷设备的表面的温度传感器，在空气进口处的温度传感器，以及在空气出口处的温度传感器。Optionally, the temperature sensor includes a temperature sensor on the surface of the liquid cooling device, a temperature sensor at the air inlet, and a temperature sensor at the air outlet.
可选地，所述腔体是水平圆柱体，空气进口在所述腔体一端的中部，空气出口在所述腔体另一端的上半部，Optionally, the cavity is a horizontal cylinder, the air inlet is in the middle of one end of the cavity, and the air outlet is in the upper half of the other end of the cavity,
并且在所述腔体上部设有观察窗。And there is an observation window on the upper part of the cavity.
可选地，在所述腔体的另一端设置有用以放入液冷设备的入孔；Optionally, an inlet hole for placing liquid cooling equipment is provided at the other end of the cavity;
并且，所述入孔设置有穿板接头，液冷设备的液冷进出液管和设备线缆从所述穿板接头穿出。Moreover, the inlet hole is provided with a through-plate joint, and the liquid cooling inlet and outlet pipes and equipment cables of the liquid cooling equipment pass through the through-plate joint.
可选地，还设置有支撑部分，所述支撑部分包括：Optionally, a support part is also provided, and the support part includes:
液冷设备支撑架，包括可升降支架以及支撑平台，设置在腔体内用以支撑所述液冷设备；A liquid cooling equipment support frame, including a liftable bracket and a support platform, is provided in the cavity to support the liquid cooling equipment;
固定夹，在所述液冷设备支撑架的侧边，用以固定线缆和液冷进出液管。The fixing clip is on the side of the liquid cooling equipment support frame to fix the cables and the liquid cooling inlet and outlet pipes.
可选地，所述液冷设备支撑架和所述固定夹是由绝热材料制成。Optionally, the liquid cooling equipment support frame and the fixing clip are made of thermal insulation material.
可选地，在所述腔体内设置有灯带，且所述灯带与感应所述入孔开闭的传感器连接。Optionally, a light strip is provided in the cavity, and the light strip is connected to a sensor that senses the opening and closing of the inlet hole.
可选地，所述散热量计算模块利用输入的第一温度调整进气量，使得液冷设备表面平均温度等于输入的第一温度，然后测量空气出口的质量流量，并根据
计算液冷设备散热速率，
Optionally, the heat dissipation calculation module uses the input first temperature to adjust the air intake volume so that the average surface temperature of the liquid cooling equipment is equal to the input first temperature, and then measures the mass flow rate of the air outlet, and calculates the amount of air inlet according to the input first temperature. Calculate the heat dissipation rate of liquid cooling equipment,
其中C
P为空气的比热容；
where C P is the specific heat capacity of air;
T
2为空气出口处空气平均温度；
T 2 is the average air temperature at the air outlet;
T
1为空气进口处空气平均温度，
T 1 is the average air temperature at the air inlet,
其中，所述第一温度是指液冷设备未置于所述腔体内运转时表面平均温度。Wherein, the first temperature refers to the average surface temperature of the liquid cooling equipment when it is not placed in the cavity and is running.
可选地，所述散热量计算模块通过逐渐增大进气量使得液冷设备表面平均温度趋于恒定，然后测量获得空气出口的质量流量，并根据
计算液冷设备散热速率，
Optionally, the heat dissipation calculation module gradually increases the air intake volume to make the average surface temperature of the liquid cooling equipment tend to be constant, and then measures and obtains the mass flow rate of the air outlet, and based on Calculate the heat dissipation rate of liquid cooling equipment,
其中C
P为空气的比热容；
where C P is the specific heat capacity of air;
T
2为空气出口处空气平均温度；
T 2 is the average air temperature at the air outlet;
T
1为空气进口处空气平均温度。
T 1 is the average air temperature at the air inlet.
本发明通过将液冷设备置于腔体内，能够测量经过腔体的空气所吸收液冷设备散发的热量来确定液冷设备的散热量。并且，可以根据液冷设备的运转和待机状态，采用不同的测量方法来获得传感器数据，能够分别获得液冷设备在运转和待机状态下的散热量。By placing the liquid cooling equipment in the cavity, the present invention can measure the heat emitted by the liquid cooling equipment absorbed by the air passing through the cavity to determine the heat dissipation of the liquid cooling equipment. Moreover, different measurement methods can be used to obtain sensor data according to the operating and standby states of the liquid cooling equipment, and the heat dissipation of the liquid cooling equipment in operating and standby states can be obtained respectively.
图1为本发明实施例的液冷设备散热量测量装置的剖面示意图；Figure 1 is a schematic cross-sectional view of a heat dissipation measuring device for liquid cooling equipment according to an embodiment of the present invention;
图2为本发明实施例的液冷设备散热量测量装置的正视图；Figure 2 is a front view of the heat dissipation measuring device of liquid cooling equipment according to the embodiment of the present invention;
图中：腔体1、金属层2、真空层3、绝热层5、防辐射膜7、支撑平台8、液冷设备支撑架9、固定夹10、灯带11、空气进口12、空气出口13、入孔14、穿板接头15、腔体支座16、进口温度传感器17、出口温度传感器18、观察窗19。In the picture: cavity 1, metal layer 2, vacuum layer 3, insulation layer 5, radiation protection film 7, support platform 8, liquid cooling equipment support frame 9, fixing clip 10, light strip 11, air inlet 12, air outlet 13 , inlet hole 14, through-plate joint 15, cavity support 16, inlet temperature sensor 17, outlet temperature sensor 18, observation window 19.
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.
下文中液冷设备是指带有液冷装置的电子设备。In the following, liquid cooling equipment refers to electronic equipment with a liquid cooling device.
本实施例的液冷设备散热量测量装置，包括腔体1、支撑部、数据采集模块、散热量计算模块，其中腔体1用于放置液冷设备，腔体支座16用于支撑 整个腔体，在所述腔体1上设置有空气进口和空气出口。腔体1的壁面有五层结构，从内到外分别是金属层2、真空层3、金属层2、绝热层(例如聚氨酯)5、金属层2，在真空层内侧的金属层2朝向腔内的一侧还涂覆有防辐射膜7。The device for measuring the heat dissipation of liquid cooling equipment in this embodiment includes a cavity 1, a support part, a data acquisition module, and a heat dissipation calculation module. The cavity 1 is used to place the liquid cooling equipment, and the cavity support 16 is used to support the entire cavity. The cavity 1 is provided with an air inlet and an air outlet. The wall of the cavity 1 has a five-layer structure. From the inside to the outside, they are a metal layer 2, a vacuum layer 3, a metal layer 2, an insulation layer (such as polyurethane) 5, and a metal layer 2. The metal layer 2 inside the vacuum layer faces the cavity. The inner side is also coated with a radiation-proof film 7.
数据采集模块包括多个温度传感器和多个流量传感器，在液冷设备的表面设置有温度传感器。空气进口12位于腔体1一端的中心处，在空气进口处安装有进口温度传感器17，并在空气进口12之前装有流量传感器；空气出口13位于腔体1另一端上半部，空气出口13处安装有出口温度传感器18，其后连接有流量传感器。The data acquisition module includes multiple temperature sensors and multiple flow sensors, and a temperature sensor is provided on the surface of the liquid cooling device. The air inlet 12 is located at the center of one end of the cavity 1. An inlet temperature sensor 17 is installed at the air inlet, and a flow sensor is installed in front of the air inlet 12; the air outlet 13 is located in the upper half of the other end of the cavity 1, and the air outlet 13 An outlet temperature sensor 18 is installed, and a flow sensor is connected behind it.
所述散热量计算模块利用输入的第一温度调整进气量，使得液冷设备表面平均温度等于输入的第一温度，然后测量空气出口的质量流量，其中，所述第一温度是指液冷设备未置于所述腔体内运转时表面平均温度。The heat dissipation calculation module uses the input first temperature to adjust the air intake volume so that the average surface temperature of the liquid cooling equipment is equal to the input first temperature, and then measures the mass flow rate of the air outlet, where the first temperature refers to the liquid cooling The average surface temperature of the equipment when it is not placed in the cavity and is running.
所述散热量计算模块在事先未获得液冷设备未置于所述腔体内运转时表面平均温度的情况下，通过逐渐增大进气量使得液冷设备表面平均温度趋于恒定后，测量获得空气出口的质量流量。所述趋于恒定是指液冷设备表面平均温度稳定在规定的正常工作温度，即稳定在某一温度，或一个温度范围内不再发生变化。The heat dissipation calculation module does not obtain in advance the average surface temperature of the liquid cooling equipment when it is not placed in the cavity, and gradually increases the air intake volume to make the average surface temperature of the liquid cooling equipment become constant, and then the measurement is obtained. Mass flow rate of air outlet. The tendency to be constant means that the average surface temperature of the liquid cooling equipment is stable at the specified normal operating temperature, that is, it is stable at a certain temperature, or no longer changes within a temperature range.
并且，所述散热量计算模块还根据公式
计算液冷设备散热速率，
Moreover, the heat dissipation calculation module is also based on the formula Calculate the heat dissipation rate of liquid cooling equipment,
其中C
P为空气的比热容；
where C P is the specific heat capacity of air;
T
2为空气出口处空气平均温度；
T 2 is the average air temperature at the air outlet;
T
1为空气进口处空气平均温度。
T 1 is the average air temperature at the air inlet.
所述散热量计算模块可以是存储于存储器中，所述存储器用于存储程序代码和各种数据，并通过处理器执行，从而执行空气出口质量流量获取，和液冷设备散热速率计算。The heat dissipation calculation module may be stored in a memory, and the memory is used to store program codes and various data, and is executed by a processor to obtain the air outlet mass flow rate and calculate the heat dissipation rate of the liquid cooling equipment.
进一步地，支撑部包括液冷设备支撑架9和支撑平台8，液冷设备支撑架9位于腔体1的最底部，其上方是支撑平台8，该支撑平台8位于中轴线偏下， 使得其支撑的液冷设备位于中轴线。固定夹10位于绝热支架9上，用来固定液冷设备的液冷进出液管、电源线以及温度传感器的数据传输线。液冷设备支撑架9、固定夹10是由绝热材料制成，防止通过支撑结构产生明显换热，确保测量结果的精确性。Further, the support part includes a liquid cooling equipment support frame 9 and a support platform 8. The liquid cooling equipment support frame 9 is located at the bottom of the cavity 1, and above it is a support platform 8. The support platform 8 is located below the central axis, so that it The supported liquid cooling equipment is located on the central axis. The fixing clip 10 is located on the insulating bracket 9 and is used to fix the liquid cooling inlet and outlet pipes, power cords and data transmission lines of the temperature sensor of the liquid cooling equipment. The liquid cooling equipment support frame 9 and the fixing clip 10 are made of thermal insulation materials to prevent obvious heat exchange through the support structure and ensure the accuracy of the measurement results.
进一步地，位于腔体的所述另一端具有入孔14，以方便液冷设备进出腔体；腔体1上部设置有观察窗19，优选在正上方偏向一定角度方向上，用于观测腔体内被测液冷设备的放置情况。Furthermore, there is an inlet hole 14 at the other end of the cavity to facilitate the entry and exit of the liquid cooling equipment into the cavity; an observation window 19 is provided on the upper part of the cavity 1, preferably directly above and oriented at a certain angle for observing the inside of the cavity. The placement of the liquid cooling equipment under test.
进一步地，在所述腔体内还设置有灯带11，并且，是在所述腔体靠近入孔处的壁面上，围绕所述腔体圆周方向设置一组灯带，以保证所述腔体内部操作空间的亮度。所述腔体内安装传感器用以控制所述灯带，述灯带与感应所述入孔开闭的传感器连接，当所述腔体打开时，灯带点亮；所述腔体关闭，灯带熄灭。Furthermore, a light strip 11 is also provided in the cavity, and a set of light strips is arranged around the circumferential direction of the cavity on the wall of the cavity near the entrance hole to ensure that the cavity Brightness of the internal operating space. A sensor is installed in the cavity to control the light strip. The light strip is connected to a sensor that senses the opening and closing of the inlet. When the cavity is opened, the light strip lights up; when the cavity is closed, the light strip extinguished.
进一步地，所述入孔的底部设置有穿板接头，其设备电源线、液冷进出液管，还有各传感器的数据传输线、灯带11的电源线等均会通过穿板接头15穿出腔体。Further, a through-plate connector is provided at the bottom of the inlet hole, and the equipment power cord, liquid cooling inlet and outlet pipes, data transmission lines of each sensor, power cord of the light strip 11, etc. will all pass through the through-plate connector 15 cavity.
下面说明一下利用该装置进行测量的方法。一种情况是针对事先获得液冷设备未置于所述腔体内运转时表面平均温度的情况下，测量液冷设备向环境周围散发的热量，具体如下所述。The method of measuring using this device is explained below. One situation is to measure the heat dissipated by the liquid cooling equipment to the surrounding environment when the average surface temperature of the liquid cooling equipment when it is not placed in the cavity is obtained in advance, as detailed below.
将液冷设备置于腔内，并使得液冷设备运转，将空气进口12处的空气流量调整为该液冷设备在设计仿真时所确定的值，待液冷设备表面平均温度、空气出口13处空气温度稳定后，比较液冷设备表面平均温度与液冷设备未置于腔内运转时表面平均温度大小，然后根据比较结果进行相应地调节空气进口处空气流量，直至在某一进气量下，液冷设备表面平均温度与液冷设备未置于腔内运转时表面平均温度相同，则停止进气量的调整；在该进气量下，记录稳定后的空气进口和空气出口各温度值以及空气出口质量流量，根据公式1计算液冷设备的散热速率。Place the liquid cooling equipment in the cavity and allow the liquid cooling equipment to operate. Adjust the air flow at the air inlet 12 to the value determined during the design simulation of the liquid cooling equipment. After the average temperature of the surface of the liquid cooling equipment and the air outlet 13 After the air temperature is stabilized, compare the average surface temperature of the liquid cooling equipment with the average surface temperature of the liquid cooling equipment when it is not placed in the cavity, and then adjust the air flow at the air inlet accordingly based on the comparison results until a certain air intake volume is achieved. If the average surface temperature of the liquid cooling equipment is the same as the average surface temperature of the liquid cooling equipment when it is not placed in the cavity and is running, stop adjusting the air intake volume; at this air intake volume, record the stable air inlet and air outlet temperatures. value and the air outlet mass flow rate, calculate the heat dissipation rate of the liquid cooling equipment according to Equation 1.
其中C
P为空气的比热容；
where C P is the specific heat capacity of air;
T
2为所述空气出口处的空气平均温度；
T2 is the average air temperature at the air outlet;
T
1为所述空气进口处的空气平均温度。
T 1 is the average air temperature at the air inlet.
另一种情况是针对事先未获得液冷设备未置于所述腔体内运转时表面平均温度的情况下，测量电机向环境周围散发的热量的方式，具体如下所述。Another situation is to measure the heat dissipated by the motor to the surrounding environment without obtaining the average surface temperature of the liquid cooling device when it is not placed in the cavity and is specifically described below.
大致方法和上述第一种情况相同，因为进气量在一定范围内时，进气量应会与液冷设备表面温度呈现线性变化，但是在不断调大进气量时，液冷设备表面温度会趋于恒定，在趋于恒定后，记录各温度值以及空气出口质量流量，采用公式1计算液冷设备的散热速率。The general method is the same as the first case above, because when the air intake volume is within a certain range, the air intake volume should change linearly with the surface temperature of the liquid cooling equipment. However, when the air intake volume is continuously increased, the surface temperature of the liquid cooling equipment will change. will tend to be constant. After becoming constant, record each temperature value and the air outlet mass flow rate, and use Formula 1 to calculate the heat dissipation rate of the liquid cooling equipment.
当然，本发明还可有其它多种实施例，在不背离本发明精神及其实质的情况下，本领域技术人员可根据本发明做出各种相应的改变和变形，但这些相应的改变和变形都属于本发明的权利要求的保护范围。Of course, the present invention can also have various other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention. However, these corresponding changes and All modifications fall within the protection scope of the claims of the present invention.
Claims (10)
- 一种液冷设备散热量测量装置，其特征在于，包括：A device for measuring heat dissipation of liquid cooling equipment, which is characterized in that it includes:腔体，用于放置液冷设备，在所述腔体上设置有空气进口和空气出口；A cavity is used to place liquid cooling equipment, and an air inlet and an air outlet are provided on the cavity;数据采集模块，包括温度传感器和流量传感器，其中所述温度传感器用于测量所述液冷设备的表面、所述空气进口和所述空气出口处的温度，流量传感器用于测量所述空气进口和所述空气出口处的质量流量；A data acquisition module includes a temperature sensor and a flow sensor, wherein the temperature sensor is used to measure the temperature at the surface of the liquid cooling device, the air inlet and the air outlet, and the flow sensor is used to measure the air inlet and the air outlet. The mass flow rate at the air outlet;散热量计算模块，根据空气的比热容、所述空气出口的质量流量，以及所述空气进口与所述空气出口的空气温度差值确定液冷设备散热速率。The heat dissipation calculation module determines the heat dissipation rate of the liquid cooling equipment based on the specific heat capacity of the air, the mass flow rate of the air outlet, and the air temperature difference between the air inlet and the air outlet.
- 根据权利要求1所述的液冷设备散热量测量装置，其特征在于，所述腔体包括内外两层绝热层，其中内绝热层为真空层，外绝热层为绝热材料。The heat dissipation measuring device of liquid cooling equipment according to claim 1, characterized in that the cavity includes two inner and outer thermal insulation layers, wherein the inner thermal insulation layer is a vacuum layer and the outer thermal insulation layer is a thermal insulation material.
- 根据权利要求1所述的液冷设备散热量测量装置，其特征在于，所述温度传感器包括在液冷设备的表面的温度传感器，在空气进口处的温度传感器，以及在空气出口处的温度传感器。The device for measuring heat dissipation of liquid cooling equipment according to claim 1, wherein the temperature sensor includes a temperature sensor on the surface of the liquid cooling equipment, a temperature sensor at the air inlet, and a temperature sensor at the air outlet. .
- 根据权利要求1所述的液冷设备散热量测量装置，其特征在于，所述腔体是水平圆柱体，空气进口在所述腔体一端的中部，空气出口在所述腔体另一端的上半部，The heat dissipation measuring device of liquid cooling equipment according to claim 1, wherein the cavity is a horizontal cylinder, the air inlet is in the middle of one end of the cavity, and the air outlet is on the other end of the cavity. half,并且在所述腔体上部设有观察窗。And there is an observation window on the upper part of the cavity.
- 根据权利要求4所述的液冷设备散热量测量装置，其特征在于，在所述腔体的另一端设置有用以放入液冷设备的入孔；The heat dissipation measuring device of liquid cooling equipment according to claim 4, characterized in that an inlet hole for placing liquid cooling equipment is provided at the other end of the cavity;并且，所述入孔设置有穿板接头，液冷设备的液冷进出液管和设备线缆从所述穿板接头穿出。Moreover, the inlet hole is provided with a through-plate joint, and the liquid cooling inlet and outlet pipes and equipment cables of the liquid cooling equipment pass through the through-plate joint.
- 根据权利要求1-5任一所述的液冷设备散热量测量装置，其特征在于，还设置有支撑部分，所述支撑部分包括：The device for measuring heat dissipation of liquid cooling equipment according to any one of claims 1 to 5, characterized in that it is further provided with a support part, and the support part includes:液冷设备支撑架，包括可升降支架以及支撑平台，设置在腔体内用以支撑所述液冷设备；A liquid cooling equipment support frame, including a liftable bracket and a support platform, is provided in the cavity to support the liquid cooling equipment;固定夹，在所述液冷设备支撑架的侧边，用以固定线缆和液冷进出液管。The fixing clip is on the side of the liquid cooling equipment support frame to fix the cables and the liquid cooling inlet and outlet pipes.
- 根据权利要求6所述的液冷设备散热量测量装置，其特征在于，所述 液冷设备支撑架和所述固定夹是由绝热材料制成。The device for measuring heat dissipation of liquid cooling equipment according to claim 6, characterized in that the liquid cooling equipment support frame and the fixing clip are made of thermal insulation materials.
- 根据权利要求5所述的液冷设备散热量测量装置，其特征在于，在所述腔体内设置有灯带，且所述灯带与感应所述入孔开闭的传感器连接。The heat dissipation measuring device of liquid cooling equipment according to claim 5, characterized in that a light strip is provided in the cavity, and the light strip is connected to a sensor that senses the opening and closing of the inlet hole.
- 根据权利要求1所述的液冷设备散热量测量装置，其特征在于，所述散热量计算模块利用输入的第一温度调整进气量，使得液冷设备表面平均温度等于输入的第一温度，然后测量空气出口的质量流量，并根据计算液冷设备散热速率， The device for measuring heat dissipation of liquid cooling equipment according to claim 1, wherein the heat dissipation calculation module uses the input first temperature to adjust the air intake volume so that the average temperature of the surface of the liquid cooling equipment is equal to the input first temperature, Then measure the mass flow rate of the air outlet and based on
Calculate the heat dissipation rate of liquid cooling equipment,其中C P为空气的比热容； where C P is the specific heat capacity of air;为空气出口的质量流量；
is the mass flow rate of the air outlet;T 2为空气出口处空气平均温度； T 2 is the average air temperature at the air outlet;T 1为空气进口处空气平均温度， T 1 is the average air temperature at the air inlet,其中，所述第一温度是指液冷设备未置于所述腔体内运转时表面平均温度。Wherein, the first temperature refers to the average surface temperature of the liquid cooling equipment when it is not placed in the cavity and is running. - 根据权利要求1所述的液冷设备散热量测量装置，其特征在于，所述散热量计算模块通过逐渐增大进气量使得液冷设备表面平均温度趋于恒定，然后测量获得空气出口的质量流量，并根据计算液冷设备散热速率， The heat dissipation measuring device of liquid cooling equipment according to claim 1, characterized in that the heat dissipation calculation module gradually increases the air intake volume to make the average temperature of the surface of the liquid cooling equipment tend to be constant, and then measures the quality of the air outlet. traffic, and based on
Calculate the heat dissipation rate of liquid cooling equipment,其中C P为空气的比热容； where C P is the specific heat capacity of air;为空气出口的质量流量；
is the mass flow rate of the air outlet;T 2为空气出口处空气平均温度； T 2 is the average air temperature at the air outlet;T 1为空气进口处空气平均温度。 T 1 is the average air temperature at the air inlet.
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| JP2002214053A (en) * | 2001-01-22 | 2002-07-31 | Toshiba Corp | Method and device for measuring cooling performance of cooler for x-ray tube device |
| CN109029792A (en) * | 2018-07-24 | 2018-12-18 | 中国舰船研究设计中心 | A kind of electrical equipment heat dissipation capacity test macro and test method |
| CN113945605A (en) * | 2020-07-17 | 2022-01-18 | 中国电力科学研究院有限公司 | Transformer heat dissipation capacity measuring device and measuring method |
| CN114485998A (en) * | 2020-11-13 | 2022-05-13 | 北京华卓精科科技股份有限公司 | Method and device for measuring heat dissipation amount |
| CN114646359A (en) * | 2022-02-11 | 2022-06-21 | 西安特来电领充新能源科技有限公司 | Liquid cooling system flow monitoring method and device and electric automobile |
| CN115326243A (en) * | 2022-07-04 | 2022-11-11 | 电子科技大学 | Measurement system for heat dissipation power of general electronic equipment |
-
2022
- 2022-08-16 CN CN202210979003.9A patent/CN115389056A/en active Pending
- 2022-08-23 WO PCT/CN2022/114149 patent/WO2024036652A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002214053A (en) * | 2001-01-22 | 2002-07-31 | Toshiba Corp | Method and device for measuring cooling performance of cooler for x-ray tube device |
| CN109029792A (en) * | 2018-07-24 | 2018-12-18 | 中国舰船研究设计中心 | A kind of electrical equipment heat dissipation capacity test macro and test method |
| CN113945605A (en) * | 2020-07-17 | 2022-01-18 | 中国电力科学研究院有限公司 | Transformer heat dissipation capacity measuring device and measuring method |
| CN114485998A (en) * | 2020-11-13 | 2022-05-13 | 北京华卓精科科技股份有限公司 | Method and device for measuring heat dissipation amount |
| CN114646359A (en) * | 2022-02-11 | 2022-06-21 | 西安特来电领充新能源科技有限公司 | Liquid cooling system flow monitoring method and device and electric automobile |
| CN115326243A (en) * | 2022-07-04 | 2022-11-11 | 电子科技大学 | Measurement system for heat dissipation power of general electronic equipment |
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