System and method for measuring cooling efficiency of radiation water cooling system

Abstract

The invention relates to the technical field of radiation refrigeration, in particular to a radiation water-cooling system cooling efficiency measuring system and method.The efficiency system comprises a first measuring assembly and a second measuring assembly, and the radiation water-cooling system cooling efficiency measuring method is a special measuring method developed based on the radiation water-cooling system cooling efficiency measuring system. The system is high in precision and efficiency, and the measurement and calculation result of the refrigeration efficiency of the radiation water cooling system can be digitized and accurate.

Description

Technical Field

[0001] The present application relates to the field of radiation refrigeration technology, and in particular to a system and method for measuring the cooling efficiency of a radiation water cooling system. Background Art

[0002] The energy consumed by air conditioning and other refrigeration systems accounts for about 15% of the world's total electricity consumption each year. Therefore, the development of energy-free passive refrigeration technology is extremely important for energy conservation and emission reduction. Radiative cooling is a refrigeration technology that achieves cooling by spontaneously radiating heat into the cold outer space.

[0003] Among them, radiation cooling power, as the main performance indicator, has always been an important reference indicator for material modification and optimization. In the existing technology, the theoretical value is mainly calculated based on the spectral data of the radiation cooling material. This theoretical value lacks experimental verification and has low accuracy, which makes it more difficult to promote the engineering of radiation cooling materials.

[0004] Prior art: Patent CN 217542945 U discloses a radiation cooling coating performance testing device, which uses a thermocouple probe to measure the temperature of samples with and without radiation cooling materials, and then measures the surface temperature of the two samples, thereby detecting the cooling performance of the samples with radiation cooling materials through temperature changes. However, since the performance is not measured in a systematic and digitized manner, the cooling effect of the radiation cooling material may be larger or smaller during the cooling process of the radiation cooling material when the radiation cooling material is actually used, which makes it difficult to promote the use of the radiation cooling material.

[0005] Therefore, there is an urgent need for a measurement system and method for a radiation water cooling system, so that the measurement results of the refrigeration and cooling efficiency of the radiation water cooling system can be digitized and accurate. Summary of the invention

[0006] The embodiments of the present application provide a system and method for measuring the cooling efficiency of a radiant water cooling system, so that the calculation results of the cooling efficiency of the radiant water cooling system can be digitized and accurate.

[0007] In a first aspect, an embodiment of the present application provides a system for measuring the cooling efficiency of a radiant water cooling system, comprising:

[0008] The first measuring assembly includes a first insulation room, a first water tank, a first temperature control module and a radiation cooling module. The first water tank and the first temperature control module are arranged in the first insulation room. The first temperature control module is used to keep the temperature of the first insulation room stable and display the consumed power. The radiation cooling module is arranged on the top of the outer wall of the insulation room. The radiation cooling module is connected with the first water tank so that the liquid circulates in the first water tank and between the radiation cooling module.

[0009] The second measuring component includes a second insulation room, a second water tank, a second temperature control module and a control module. The second water tank and the second temperature control module are arranged in the second insulation room. The second temperature control module is used to keep the temperature of the second insulation room stable and display the consumed electric energy. The control module is arranged on the top of the outer wall of the insulation room. The control module is connected to the second water tank so that the liquid circulates in the second water tank and between the control module.

[0010] According to the aforementioned embodiment of the first aspect of the present application, the first temperature control module includes a first temperature control air conditioner and a first air conditioner electric energy meter electrically connected to each other, the first temperature control air conditioner is arranged in the first insulation room, and the first air conditioner electric energy meter is used to measure the electric energy consumed by the first temperature control air conditioner.

[0011] The second temperature control module includes a second temperature control air conditioner and a second air conditioner electric energy meter which are electrically connected to each other. The second temperature control air conditioner is arranged in the second insulation room. The second air conditioner electric energy meter is used to measure the electric energy consumed by the second temperature control air conditioner.

[0012] According to the aforementioned embodiment of the first aspect of the present application, the first measuring assembly further includes a first heating element and a first heating electric energy meter electrically connected to each other, the first heating element is arranged in the insulation room, and both ends of the heating element are respectively connected to the first water tank and the radiation cooling module through pipelines,

[0013] The second measuring component also includes a second heating element and a second heating electric energy meter which are electrically connected to each other. The second heating element is arranged in the insulation room. Both ends of the heating element are respectively connected to the second water tank and the control module through pipelines.

[0014] According to the aforementioned embodiment of the first aspect of the present application, the first measuring assembly further includes a first liquid delivery pump, which is disposed at one end of the first water tank.

[0015] The second measuring component also includes a second liquid feeding pump, and the second liquid feeding pump is arranged at one end of the second water tank.

[0016] According to the aforementioned implementation of the first aspect of the present application, a first flow meter is provided on the pipeline between the first liquid delivery pump and the radiation refrigeration module.

[0017] A second flow meter is arranged on the pipeline between the second liquid delivery pump and the control module.

[0018] According to the aforementioned embodiment of the first aspect of the present application, the first thermal insulation room, the second thermal insulation room and the outer walls of the pipelines arranged outside the first thermal insulation room and the second thermal insulation room are all provided with a thermal insulation layer.

[0019] According to the aforementioned embodiment of the first aspect of the present application, the top of the first water tank is connected to the radiation cooling module through a pipeline, and the first heating element is connected to an end of the first water tank near the bottom.

[0020] The top of the second water tank is connected with the control module through a pipeline, and the second heating element is connected with an end of the second water tank close to the bottom.

[0021] According to the aforementioned embodiment of the first aspect of the present application, the above-mentioned second measuring component also includes a connecting pipe, the two ends of the connecting pipe are respectively connected to the pipes at the two ends of the control module, and the end of the connecting pipe connected to the liquid inlet end of the control module is provided with a switch valve for controlling the liquid to pass through the control module.

[0022] According to the aforementioned embodiment of the first aspect of the present application, it also includes a humidity adjusting component and a wind speed adjusting component, which are used to adjust the humidity and wind speed in the environment.

[0023] In a second aspect, an embodiment of the present application provides a method for measuring the cooling efficiency of a radiant water cooling system, comprising:

[0024] The first heating element, the first heating electric energy meter, the second heating element and the second heating electric energy meter are turned on, so that the first heating element and the second heating element heat the liquid in the first heating element and the second heating element respectively.

[0025] Turn on the first temperature-controlled air conditioner, the first air conditioner power meter, the second temperature-controlled air conditioner and the second air conditioner power meter, and confirm that the temperatures in the first insulation room and the second insulation room are consistent and stable.

[0026] Turn on the first and second liquid delivery pumps, and read the first and second flow meters to ensure that the flow rate of water in the pipeline is consistent.

[0027] After the system has been running for a specified time, data of the first heating electric energy meter, the second heating electric energy meter, the first air conditioning electric energy meter and the second air conditioning electric energy meter are recorded.

[0028] In the embodiment of the present application, the first insulation room and the second insulation room are water-cooled and temperature-controlled by the liquid in the pipeline, wherein the temperature of the liquid after radiation cooling is lower and the water cooling effect is better. Furthermore, since the temperature in the first insulation room and the second insulation room is maintained constant and consistent through the action of the first temperature-controlled air conditioner and the second temperature-controlled air conditioner, the difference in electric energy consumed by the first temperature-controlled air conditioner and the second temperature-controlled air conditioner is the heat energy consumed by the radiation of the liquid after radiation cooling, and then the cooling efficiency of the radiation water cooling system can be obtained through the efficiency calculation formula, thereby making the cooling efficiency of the system digitized and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of a measurement group of a system for measuring the cooling efficiency of a radiant water cooling system according to an embodiment of the present application;

[0030] Figure 2 It is a cross-sectional schematic diagram of a first measurement component of the radiant water cooling system cooling efficiency measurement system according to an embodiment of the present application;

[0031] Figure 3 A schematic top view of a first measurement component of a system for measuring cooling efficiency of a radiant water cooling system according to an embodiment of the present application;

[0032] Figure 4 A schematic diagram of a radiation cooling module of a radiation water cooling system cooling efficiency measurement system according to an embodiment of the present application;

[0033] Figure 5 A schematic diagram of the connection between the cooling pipe, the liquid inlet pipe and the liquid outlet pipe of the radiant water cooling system cooling efficiency measurement system according to an embodiment of the present application;

[0034] Figure 6 A schematic diagram of a support bracket and a reflector of a system for measuring the cooling efficiency of a radiant water cooling system according to an embodiment of the present application;

[0035] Figure 7 A schematic diagram of a support bracket of a radiant water cooling system cooling efficiency measurement system according to an embodiment of the present application;

[0036] Figure 8 A schematic diagram of a control group of a system for measuring the cooling efficiency of a radiant water cooling system according to an embodiment of the present application;

[0037] Fig. 9 It is a cross-sectional schematic diagram of a second measurement component of the radiant water cooling system cooling efficiency measurement system according to an embodiment of the present application;

[0038] Fig.10 A schematic top view of a second measurement component of the radiant water cooling system cooling efficiency measurement system according to an embodiment of the present application;

[0039] Fig.11 A schematic diagram of a control module of a system for measuring the cooling efficiency of a radiant water cooling system according to an embodiment of the present application;

[0040] Fig.12 A schematic diagram of the connection between a control cooling pipe, a control liquid inlet pipe, and a control liquid outlet pipe of a system for measuring the cooling efficiency of a radiant water cooling system according to an embodiment of the present application;

[0041] Fig.13 A schematic diagram of a control support bracket and a control reflector of a system for measuring the cooling efficiency of a radiant water cooling system according to an embodiment of the present application;

[0042] Fig.14 A schematic diagram of a control support bracket of a radiant water cooling system cooling efficiency measurement system according to an embodiment of the present application;

[0043] Label:

[0044] 100-first measuring assembly, 110-first insulation room, 120-first water tank, 130-first temperature control module, 131-first temperature control air conditioner, 132-first air conditioner electric energy meter, 140-radiation cooling module, 141-bearing bracket, 141a-bearing rod, 142-reflector, 143-anti-convection frame, 144-cooling pipeline, 145-liquid inlet pipeline, 146-liquid outlet pipeline, 147-water temperature sensor, 148-PE film, 150-first heating element, 151-first water flow shut-off valve, 160-first heating electric energy meter, 170-first infusion pump, 180-first liquid delivery pump, 181-first liquid delivery pump electric energy meter, 190-first flow meter,

[0045] 200-second measuring assembly, 210-second insulation room, 220-second water tank, 230-second temperature control module, 231-second temperature control air conditioner, 232-second air conditioner electric energy meter, 240-control module, 241-control bearing bracket, 241a-control bearing rod, 242-control reflector, 243-control anti-convection frame, 244-control cooling pipeline, 245-control liquid inlet pipeline, 246-control liquid outlet pipeline, 247-control water temperature sensor, 248-control PE film, 250-second heating element, 251-second water flow shut-off valve, 260-second heating electric energy meter, 270-second infusion pump, 280-second liquid delivery pump, 281-second liquid delivery pump electric energy meter, 290-second flow meter,

[0046] 300-Humidity adjustment piece,

[0047] 400-wind speed adjustment,

[0048] 500-water temperature measurement point,

[0049] 600-connecting pipeline, 610-on / off valve, 620-third water flow shut-off valve. DETAILED DESCRIPTION

[0050] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0051] In a first aspect, the embodiment of the present application provides a system and method for measuring the cooling efficiency of a radiant water cooling system, and the measurement results of the cooling efficiency of the radiant water cooling system are digitized and accurate. The system for measuring the cooling efficiency of a radiant water cooling system in the embodiment of the present application includes a first measurement component 100 and a second measurement component 200.

[0052] See also Figure 1-Figure 7 The first measuring component 100 includes a first insulation room 110, a first water tank 120, a first temperature control module 130 and a radiation cooling module 140. The outer wall of the first insulation room 110 is provided with insulation material to ensure that the temperature in the first insulation room 110 is constant during the experiment. Furthermore, the first insulation room 110 is provided with a first water tank 120 and a first temperature control module 130. The first water tank 120 is filled with liquid, and the liquid can be tap water, deionized pure water, coolant or non-conductive liquid. In this embodiment, tap water is used in the first water tank 120, thereby reducing the experimental cost.

[0053] In this embodiment, the first water tank 120 can be set at any position in the first insulation box. The first water tank 120 is set close to the side inner wall of the first insulation room 110, thereby providing sufficient installation space for other experimental components.

[0054] The first temperature control module 130 includes a first temperature-controlled air conditioner 131 and a first air-conditioner electric energy meter 132. The first temperature-controlled air conditioner 131 and the first air-conditioner electric energy meter 132 are electrically connected to each other. The first electric energy meter is used to record and display the electric energy consumed by the first temperature-controlled air conditioner 131 when it is working. The first temperature-controlled air conditioner 131 can be set at any position in the first insulation room 110. In this embodiment, the first temperature-controlled air conditioner 131 is set on the inner wall of the first insulation room 110 and is close to the upper inner wall of the first insulation room 110, so that the first temperature-controlled air conditioner 131 has a better temperature control effect on the first insulation room 110, thereby reducing energy consumption and reducing the test cost. Secondly, the first temperature-controlled air conditioner 131 is arranged opposite to the first water tank 120, so as to avoid the first water tank 120 causing obstacles to the maintenance work when the first temperature-controlled air conditioner 131 is maintained. The electric energy consumed by the first temperature-controlled air conditioner 131 is set to W1.

[0055] In this embodiment, the radiation refrigeration module 140 is arranged at the top of the first insulation room 110, and the two ends of the radiation refrigeration module 140 are respectively connected to the first water tank 120 through pipes, so that the liquid in the first water tank 120 circulates between the first water tank 120 and the radiation refrigeration module 140, wherein a part of the pipe is arranged in the first insulation room 110, and the other part of the pipe is arranged outside the first insulation room 110, and the outer wall of the pipe arranged outside the first insulation room 110 is provided with an insulation layer, so as to ensure that the temperature in the first insulation room 110 is maintained as balanced as possible through the radiation refrigeration module 140 and the first temperature-controlled air conditioner 131, and the insulation layer can prevent heat from being lost from the pipe wall.

[0056] The radiation cooling module 140 includes a supporting bracket 141, a reflector 142, an anti-convection frame 143 and a plurality of cooling pipes 144. The supporting bracket 141 includes a plurality of load-bearing rods arranged in sequence and spaced apart, and there are gaps between adjacent load-bearing rods, which reduces the manufacturing cost while increasing the bearing area of ​​the supporting bracket 141.

[0057] The reflector 142 is arranged on the upper surface of the supporting bracket 141 facing away from the first insulation room 110. The reflector 142 has crests and troughs, and the arrangement direction of the crests and troughs is consistent with the arrangement direction of the load-bearing rods. Furthermore, multiple cooling pipes 144 are respectively arranged between two adjacent crests of the reflector 142, wherein the surface of the cooling pipe 144 has a radiation cooling material for radiation cooling of the liquid in the cooling pipe 144.

[0058] Furthermore, a liquid inlet pipe 145 and a liquid outlet pipe 146 are respectively provided at both ends of the multiple cooling pipes 144, one end of the liquid outlet pipe 146 is connected to the first water tank 120, and the other ends of the liquid inlet pipe 145 and the liquid outlet pipe 146 facing opposite to each other are connected to the first water tank 120, and one end of the multiple cooling pipes 144 are all connected to the liquid inlet pipe 145, and the other ends of the multiple cooling pipes 144 are all connected to the liquid outlet pipe 146, thereby ensuring that the liquid enters the multiple cooling pipes 144 and undergoes radiation cooling before flowing into the first water tank 120 from the liquid outlet pipe 146.

[0059] In order to detect water temperature changes and understand water temperature conditions in real time, and avoid equipment failures and other reasons that may result in equipment damage being discovered after the experiment is completed, in this embodiment, water temperature sensors 147 are respectively provided at the other ends of the liquid inlet pipe 145 and the liquid outlet pipe 146 for real-time detection of water temperature changes to ensure that the liquid reaches the specified temperature after cooling, thereby confirming the normal operation of the radiation refrigeration module 140.

[0060] The anti-convection frame 143 is installed along the supporting bracket 141, and then encloses an anti-convection space to ensure that the supporting bracket 141 is sealed except for the space directly above it. Furthermore, sealant is used to fill the components of the anti-convection frame 143, and a PE film 148 is set in the space directly above the anti-convection frame 143. The PE film 148 is connected to the anti-convection frame 143, and a waterproof seal is used at the connection to ensure the sealing and waterproof properties of the radiation cooling module 140.

[0061] The outer surface of the anti-convection frame 143 is preferably made of white non-heat-absorbing material to prevent the anti-convection frame 143 from absorbing too much light and heat, thereby affecting the cooling effect of the radiation cooling module 140 .

[0062] In this embodiment, please refer to Figure 1-Figure 14 The second measuring component 200 includes a second insulation room 210, a second water tank 220, a second temperature control module 230 and a radiation cooling module 140. The outer wall of the second insulation room 210 is provided with insulation material to ensure that the temperature in the second insulation room 210 is constant during the experiment. Furthermore, the second insulation room 210 is provided with a second water tank 220 and a second temperature control module 230. The second water tank 220 is filled with liquid, and the liquid can be tap water, deionized pure water, coolant or non-conductive liquid. In this embodiment, tap water is used in the second water tank 220, thereby reducing the experimental cost.

[0063] The second water tank 220 can be arranged at any position in the second insulation box. In this embodiment, the second water tank 220 is arranged close to the side inner wall of the second insulation room 210, thereby providing sufficient installation space for other experimental components.

[0064] The second temperature control module 230 includes a second temperature-controlled air conditioner 231 and a second air conditioner electric energy meter 232. The second temperature-controlled air conditioner 231 and the second air conditioner electric energy meter 232 are electrically connected to each other. The second electric energy meter is used to record and display the electric energy consumed by the second temperature-controlled air conditioner 231 when it is working. The second temperature-controlled air conditioner 231 can be set at any position in the second insulation room 210. In this embodiment, the second temperature-controlled air conditioner 231 is set on the inner wall of the second insulation room 210 and is close to the upper inner wall of the second insulation room 210, so that the second temperature-controlled air conditioner 231 has a better temperature control effect on the second insulation room 210, thereby reducing energy consumption and reducing the test cost. Secondly, the second temperature-controlled air conditioner 231 is arranged opposite to the second water tank 220, so as to avoid the second water tank 220 from hindering the maintenance work when the second temperature-controlled air conditioner 231 is maintained. Among them, the electric energy consumed by the second temperature-controlled air conditioner is set as W2.

[0065] In this embodiment, the control module 240 is arranged at the top of the second insulation room 210, and the two ends of the control module 240 are respectively connected to the second water tank 220 through pipes, so that the liquid in the second water tank 220 circulates between the second water tank 220 and the control module 240. Part of the pipe is arranged in the second insulation room 210, and the other part of the pipe is arranged outside the second insulation room 210. The outer wall of the pipe arranged outside the second insulation room 210 is provided with an insulation layer, so as to ensure that the temperature of the liquid during the period is stable and will not cause damage to the staff.

[0066] The control module 240 includes a control bearing bracket 241, a control reflector 242, a control anti-convection frame 243 and multiple control cooling pipes 244, the control bearing frame includes multiple control bearing rods 241a, and the multiple control cooling pipes 244 are respectively provided with a control liquid inlet pipe 245 and a control liquid outlet pipe 246 at both ends, and a control PE film 248 is provided at the upper end of the control anti-convection frame 243. The control liquid inlet pipe 245 and the control liquid outlet pipe 246 are respectively provided with a control water temperature sensor 247. Among them, the control bearing bracket 241, the control reflector 242, the control anti-convection frame 243 and the multiple control cooling pipes 244 in the control module 240 are respectively consistent with the structures of the bearing bracket 141, the reflector 142, the anti-convection frame 143 and the cooling pipe 144 of the radiation cooling module 140. The only difference is that in the control module 240, the control cooling pipe 244 is not provided with a radiation cooling coating, so no further details are given.

[0067] The first measuring component 100 also includes a first infusion pump 170 and a first liquid delivery pump 180, and the second measuring component 200 also includes a second infusion pump 270 and a second liquid delivery pump 280. The first infusion pump 170 and the first liquid delivery pump 180 are relatively arranged at two ends of the first water tank 120, and the second infusion pump 270 and the second liquid delivery pump 280 are relatively arranged at two ends of the second water tank 220, so as to provide power for liquid circulation, wherein a first liquid delivery pump electric energy meter 181 is provided at one end of the first liquid delivery pump 180, and a second liquid delivery pump electric energy meter 281 is provided at one end of the second liquid delivery pump 280.

[0068] When the test is conducted, the air in the first water tank 120 and the second water tank 220 flows through the radiation cooling module 140 and the control module 240 through the pipes, and then enters the first insulation room 110 and the second insulation room 210 respectively, thereby cooling the first insulation room 110 and the second insulation room 210. The first temperature-controlled air conditioner 131 and the second temperature-controlled air conditioner 231 respectively perform auxiliary temperature control, so that the temperature in the first insulation room 110 and the second insulation room 210 is constant and consistent. Finally, the readings of the first air-conditioning electric energy meter 132 and the second air-conditioning electric energy meter 232 are read, and the energy consumed by the first temperature-controlled air conditioner 131 to maintain the temperature is W1, and the energy consumed by the second temperature-controlled air conditioner 231 is W 2. Due to the radiation cooling module 140, the temperature of the liquid flowing through the first insulation room 110 is relatively low, so the cooling effect is consumed. Therefore, the energy consumed by the first temperature-controlled air conditioner 131 in maintaining the first insulation room 110 is less than that of the second temperature-controlled air conditioner 231. The reason for the difference in energy consumption is that the temperature of the liquid flowing through the radiation cooling module 140 is different from that of the liquid flowing through the control module 240 after being radiation-cooled. The energy consumed by the radiation cooling module 140 when cooling the liquid therein is consistent with the difference in energy consumed by the first temperature-controlled air conditioner 131 and the second temperature-controlled air conditioner 231. Here, the energy consumed by the radiation cooling module 140 to cool the liquid is W 制冷， Then W 制冷 =W2-W1.

[0069] The temperature in the first insulation room 110 and the second insulation room 210 is consistent with the temperature of the unrefrigerated liquid or the difference is small.

[0070] The water amounts in the first water tank 120 and the second water tank 220 are the same.

[0071] The heating powers of the first heating element 150 and the second heating element 250 are consistent.

[0072] Assuming that the time of the test is t, the area of ​​the cooling coating in the radiation cooling module 140 is S, and the radiation cooling power is P, then according to the power calculation formula, the radiation cooling power P=W 制冷 t -1 S -1 =(W2-W1)t -1 S -1 .

[0073] Furthermore, when maintaining the second thermal insulation room 210, the energy consumed by the second temperature-controlled air conditioner 231 is the total amount of energy consumed to reduce the second thermal insulation room 210 to a specified temperature, and the radiant cooling efficiency η=W can also be obtained. 制冷 / W2, and then the radiation cooling efficiency η is obtained.

[0074] It should be understood that the liquid consumes some energy when flowing through the pipe, and will be affected by relevant factors such as the external ambient temperature, thereby dissipating some energy. If the liquid is lower during the test, the energy consumed during the radiation cooling is lower, resulting in a lower difference in the energy consumed by the first temperature-controlled air conditioner 131 and the second temperature-controlled air conditioner 231, and through the above formula P = W 制冷 t -1 S -1 =(W2-W1)t -1 S -1 It can be seen that the energy value lost by the liquid due to external influences has a greater impact on the final measurement results.

[0075] Therefore, in order to make the measurement results more accurate, in some embodiments, the first measuring component 100 also includes a first heating element 150 and a first heating power meter 160 that are electrically connected to each other. The first heating element 150 is arranged in the insulation room, and the two ends of the heating element are respectively connected to the first water tank 120 and the radiation cooling module 140 through pipes.

[0076] The second measuring component 200 further includes a second heating element 250 and a second heating power meter 260 which are electrically connected to each other. The second heating element 250 is arranged in the heat preservation room, and both ends of the heating element are respectively connected to the second water tank 220 and the control module 240 through pipelines.

[0077] The first heating element 150 and the second heating element 250 heat the liquid flowing out of the first water tank 120 and the second water tank 220 respectively, and heat them to the same temperature, so that the energy consumed during radiation cooling is relatively large, and thus the difference in energy consumed by the first temperature-controlled air conditioner 131 and the second temperature-controlled air conditioner 231 is relatively large, so that the measurement result is smaller when affected by factors such as ambient temperature and heat consumed when flowing through the pipeline, thereby ensuring the accuracy of the measurement result.

[0078] Since the heating temperatures of the first heating element 150 and the second heating element 250 are the same, the liquid temperature is the same. Assuming that the data measured by the first heating power meter 160 and the second heating power meter 260 are W3 and W4 respectively, W3-W4=0, therefore, the radiation cooling power P=W 制冷 t -1 S -1 =(W2-W1)t -1 S -1 .

[0079] In some embodiments, a first flow meter 190 is provided on the pipeline between the first liquid delivery pump 180 and the radiation refrigeration module 140, and a second flow meter 290 is provided on the pipeline between the second liquid delivery pump 280 and the control module 240. Specifically, the first flow meter 190 is arranged near the liquid inlet end of the radiation refrigeration module 140, and the second flow meter 290 is arranged near the liquid inlet end of the control module 240, so that the operator can confirm at any time through the first flow meter 190 and the second flow meter 290 that the flow rate of the liquid circulating in the pipelines of the first measuring component 100 and the second measuring component 200 is consistent, thereby ensuring the accuracy of the measurement results.

[0080] In some embodiments, see FIG. Figure 1 and Figure 8 The top of the first water tank 120 is connected to the radiation cooling module 140 through a pipeline, the first heating element 150 is connected to the end of the first water tank 120 near the bottom, the top of the second water tank 220 is connected to the control module 240 through a pipeline, and the second heating element 250 is connected to the end of the second water tank 220 near the bottom, so that all the liquids in the first water tank 120 and the second water tank 220 are circulated, avoiding the residual liquid in the first water tank 120 and the second water tank 220 from affecting the temperature of the circulating liquid, thereby causing deviations in the measurement results.

[0081] The liquid can also flow from the first water tank 120 and the second water tank 220 to the first heating element 150 and the second heating element 250 respectively under the action of its own gravity, thereby reducing energy consumption during testing and saving costs.

[0082] In some embodiments, see Figure 8-Figure 14 The second measuring component 200 also includes a connecting pipe 600. In the actual application of the system, since the radiation cooling module 140 has a large area, it will be heated under the sun. In the second measuring component 200, the connecting pipe 600 can be directly used to avoid the pipe from being heated, thereby avoiding the introduction of environmental heat, making the result more reasonable and accurate. The two ends of the connecting pipe 600 are respectively connected to the pipes at the two ends of the control module 240. The end of the connecting pipe 600 that is connected to the liquid inlet end of the control module 240 is provided with a connecting switch valve 610 for controlling the liquid to pass through the control module 240. The pipe at the liquid inlet end of the control module 240 is also provided with a third water flow shut-off valve 620 for controlling the liquid to enter the control module 240. Specifically, when the connecting switch valve 610 is opened and the third water flow shut-off valve 620 is closed, the liquid flows from the connecting pipe 600. When the connecting switch valve 610 is closed and the third water flow shut-off valve 620 is opened, the liquid flows from the control module 240.

[0083] In some embodiments, see Figure 1 and Figure 8A first water flow shut-off valve 151 is provided between the first water tank 120 and the first heating element 150, and a second water flow shut-off valve 251 is provided between the second water tank 220 and the second heating element 250, wherein the first water flow shut-off valve 151 is used to control the liquid in the first water tank 120 to enter the first heating element 150, and the second water flow shut-off valve 251 is used to control the liquid in the second water tank 220 to enter the second heating element 250.

[0084] In some embodiments, see Figure 1 and Figure 8 The first measuring component 100 and the second measuring component 200 are respectively provided with four water temperature measuring points 500, wherein, in the first measuring component 100, the four water temperature measuring points 500 are respectively arranged at the pipes close to the liquid inlet pipe 145 and the liquid outlet pipe 146 of the radiation cooling module 140, in the first water tank 120 and at the water outlet end of the first heating element 150 and are located outside the first insulation room 110, and in the second measuring component 200, the four water temperature measuring points 500 are respectively arranged at the pipes close to the liquid inlet pipe 145 and the liquid outlet pipe 146 of the radiation cooling module 140, in the second water tank 220 and at the water outlet end of the second heating element 250 and are located outside the second insulation room 210, wherein the water temperature measuring points 500 are used to detect the water temperature in real time.

[0085] It should be understood that the radiative cooling efficiency of radiative cooling materials will be affected differently under different humidity and wind speed conditions. Therefore, please refer to Figure 1 and Figure 8 In order to measure the cooling efficiency of the radiation system under different humidity and wind speed conditions to meet the needs of industrial production, in some embodiments, the measurement system also includes a humidity adjustment component 300 and a wind speed adjustment component 400. The humidity adjustment component 300 and the wind speed adjustment component 400 are used to adjust the humidity and wind speed in the environment. Specifically, the humidity adjustment component 300 can adopt an air humidifier, which is arranged on one side of the first insulation room 110 and the second insulation room 210 to control the air humidity, so that the measurement system can measure the cooling power of the radiation cooling system under different humidity, wherein the humidity can be adjusted according to the test requirements, the number of humidity adjustment components 300 is two, and the two humidity adjustment components 300 are respectively arranged on one side of the first insulation room 110 and the second insulation room 210.

[0086] The wind speed adjusting component 400 may include a fan, a blower, etc. In the present embodiment, the wind speed adjusting component 400 adopts a fan. Specifically, there are two fans, which are respectively arranged on one side of the first insulation room 110 and the second insulation room 210, for simulating the blowing environment, wherein the wind speed can be adjusted according to the test requirements.

[0087] In this embodiment, the measurement system includes a measurement combination control group, wherein the measurement group includes a first measurement component 100, one of the wind speed adjustment components 400 and one of the humidity adjustment components 300, and the control group includes a second measurement component 200, one of the wind speed adjustment components 400 and one of the humidity adjustment components 300.

[0088] In a second aspect, an embodiment of the present application provides a method for measuring the cooling efficiency of a radiant water cooling system, the method comprising the following steps:

[0089] The first heating element 150, the first heating electric energy meter 160, the second heating element 250 and the second heating electric energy meter 260 are turned on, so that the first heating element 150 and the second heating element 250 heat the liquid in the first heating element 150 and the second heating element 250 respectively.

[0090] Turn on the first temperature-controlled air conditioner 131, the first air conditioner electric energy meter 132, the second temperature-controlled air conditioner 231 and the second air conditioner electric energy meter 232, and confirm that the temperatures in the first insulation room 110 and the second insulation room 210 are consistent and stable.

[0091] Turn on the first infusion pump 170, the first liquid delivery pump 180, the second infusion pump 270 and the second liquid delivery pump 280, and read the first flow meter 190 and the second flow meter 290 to ensure that the flow rate of water in the pipeline is consistent.

[0092] After the system runs for a specified time, the data of the first heating power meter 160, the second heating power meter 260, the first air conditioning power meter 132 and the second air conditioning power meter 232 are recorded, and the radiation cooling power P=W 制冷 t -1 S -1 =(W2-W1)t -1 S -1 Calculate the radiant cooling power.

[0093] In some embodiments, step S1 includes the following sub-steps:

[0094] Before turning on the first heating element 150, the first heating power meter 160, the second heating element 250 and the second heating power meter 260, modify the parameters of the first heating element 150 and the second heating element 250 to confirm that the heating power is consistent.

[0095] Modify the parameters of the first infusion pump 170, the first liquid delivery pump 180, the second infusion pump 270 and the second liquid delivery pump 280 to be the same.

[0096] Modify the parameters of the first temperature-controlling air conditioner 131 and the second temperature-controlling air conditioner 231 to be consistent.

[0097] In summary, in the embodiment of the present application, the first insulation room 110 and the second insulation room 210 are water-cooled and temperature-controlled by the liquid in the pipeline, wherein the temperature of the liquid after radiation cooling is lower and the water cooling effect is better. Moreover, since the temperature in the first insulation room 110 and the second insulation room 210 is maintained constant and consistent through the action of the first temperature-controlled air conditioner 131 and the second temperature-controlled air conditioner 231, the difference in electric energy consumed by the first temperature-controlled air conditioner 131 and the second temperature-controlled air conditioner 231 is the heat energy consumed by the radiation of the liquid after radiation cooling, and then the cooling efficiency of the radiation water cooling system can be obtained through the efficiency calculation formula, and then the cooling efficiency of the radiation refrigeration system can be obtained, so that the results of the radiation refrigeration system are digitized and accurate.

Claims

1. A system for measuring the cooling efficiency of a radiation water cooling system, characterized in that: include The first measuring component includes a first insulation room, a first water tank, a first temperature control module and a radiation cooling module. The first water tank and the first temperature control module are arranged in the first insulation room. The first temperature control module is used to keep the temperature of the first insulation room stable and display the consumed power. The radiation cooling module is arranged on the top of the outer wall of the insulation room. The radiation cooling module is connected with the first water tank so that the liquid circulates in the first water tank and between the radiation cooling module. The second measuring component includes a second insulation room, a second water tank, a second temperature control module and a control module. The second water tank and the second temperature control module are arranged in the second insulation room. The second temperature control module is used to keep the temperature of the second insulation room stable and display the consumed electric energy. The control module is arranged on the top of the outer wall of the insulation room. The control module is connected to the second water tank so that the liquid circulates in the second water tank and between the control module.

2. The radiant water cooling system cooling efficiency measurement system according to claim 1, characterized in that: The first temperature control module includes a first temperature control air conditioner and a first air conditioner electric energy meter electrically connected to each other, the first temperature control air conditioner is arranged in the first insulation room, and the first air conditioner electric energy meter is used to measure the electric energy consumed by the first temperature control air conditioner. The second temperature control module includes a second temperature control air conditioner and a second air conditioner power meter electrically connected to each other, the second temperature control air conditioner is arranged in the second insulation room, and the second air conditioner power meter is used to measure the power consumed by the second temperature control air conditioner.

3. The radiant water cooling system cooling efficiency measurement system according to claim 1, characterized in that: The first measuring assembly further includes a first heating element and a first heating electric energy meter electrically connected to each other, the first heating element is arranged in the insulation room, and two ends of the heating element are respectively connected to the first water tank and the radiation cooling module through pipelines. The second measuring component also includes a second heating element and a second heating power meter electrically connected to each other. The second heating element is arranged in the insulation room. Both ends of the heating element are respectively connected to the second water tank and the control module through pipelines.

4. The radiant water cooling system cooling efficiency measurement system according to claim 1, characterized in that: The first measuring assembly further includes a first liquid feeding pump, which is disposed at one end of the first water tank. The second measuring component also includes a second liquid feeding pump, and the second liquid feeding pump is arranged at one end of the second water tank.

5. The radiant water cooling system cooling efficiency measurement system according to claim 4, characterized in that: A first flow meter is provided on the pipeline between the first liquid delivery pump and the radiation cooling module. A second flow meter is provided on the pipeline between the second liquid delivery pump and the control module.

6. The radiant water cooling system cooling efficiency measurement system according to claim 1, characterized in that: The first thermal insulation room, the second thermal insulation room and the outer walls of the pipelines arranged outside the first thermal insulation room and the second thermal insulation room are all provided with thermal insulation layers.

7. The radiant water cooling system cooling efficiency measurement system according to claim 3, characterized in that: The top of the first water tank is connected to the radiation cooling module through a pipeline, and the first heating element is connected to an end of the first water tank near the bottom. The top of the second water tank is connected to the control module through a pipeline, and the second heating element is connected to an end of the second water tank near the bottom.

8. The radiant water cooling system cooling efficiency measurement system according to claim 3, characterized in that: The second measuring component also includes a connecting pipe, both ends of which are respectively connected to the pipes at both ends of the control module. One end of the connecting pipe connected to the liquid inlet end of the control module is provided with a switch valve for controlling the liquid to pass through the control module.

9. The radiant water cooling system cooling efficiency measurement system according to claim 3, characterized in that: It also includes a humidity adjusting component and a wind speed adjusting component, which are used to adjust the humidity and wind speed in the environment.

10. A method for measuring the cooling efficiency of a radiation water cooling system, applied to the cooling efficiency measuring system of a radiation water cooling system as claimed in any one of claims 1 to 9, characterized in that: The method comprises The first heating element, the first heating electric energy meter, the second heating element and the second heating electric energy meter are turned on, so that the first heating element and the second heating element heat the liquid in the first heating element and the second heating element respectively. Turn on the first temperature-controlled air conditioner, the first air conditioner power meter, the second temperature-controlled air conditioner and the second air conditioner power meter, and confirm that the temperatures in the first insulation room and the second insulation room are consistent and stable. Turn on the first and second liquid delivery pumps, and read the first and second flow meters to ensure that the flow rate of water in the pipeline is consistent. After the system has been running for a specified time, data of the first heating electric energy meter, the second heating electric energy meter, the first air conditioning electric energy meter and the second air conditioning electric energy meter are recorded.

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