WO2022228225A1 - Plate-forme d'expérimentation thermique multifonctionnelle - Google Patents

Plate-forme d'expérimentation thermique multifonctionnelle Download PDF

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Publication number
WO2022228225A1
WO2022228225A1 PCT/CN2022/087857 CN2022087857W WO2022228225A1 WO 2022228225 A1 WO2022228225 A1 WO 2022228225A1 CN 2022087857 W CN2022087857 W CN 2022087857W WO 2022228225 A1 WO2022228225 A1 WO 2022228225A1
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WIPO (PCT)
Prior art keywords
module
water tank
pressure
pipeline
multifunctional thermal
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Application number
PCT/CN2022/087857
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English (en)
Chinese (zh)
Inventor
童剑飞
陆友莲
梁天骄
孙鹏
朱凌波
Original Assignee
散裂中子源科学中心
中国科学院高能物理研究所
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Application filed by 散裂中子源科学中心, 中国科学院高能物理研究所 filed Critical 散裂中子源科学中心
Publication of WO2022228225A1 publication Critical patent/WO2022228225A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity

Definitions

  • the invention relates to the technical field of thermal engineering, in particular to a multifunctional thermal engineering experimental platform that can meet the testing environment of different experimental equipment.
  • the current measurement platform has a limited test range, and it is difficult to be compatible with various functional requirements such as high flow and low flow, high heat load and low heat load.
  • the test platform cannot provide Stable measurement environment and high-quality test accuracy; neutron generation targets based on high-current accelerators have high heat flux density and high power, so it is necessary to carry out high-precision measurement experiments at low power and high heat flux density, as well as high-power Large and small flow verification experiments; therefore, it is necessary to design a multi-functional thermal experimental platform to meet the test environment of different experimental equipment, different pressures and different working fluids.
  • the purpose of the present invention is to provide a multifunctional thermal experiment platform, which has the characteristics of high stability, wide adjustable range, easy maintenance and strong applicability.
  • a multifunctional thermal experiment platform including an outdoor cooling module, a pipeline regulation module, a parameter measurement module, a regulated power supply module and a water tank high-voltage module, wherein the external experimental equipment and The pipeline control module is connected to realize cooling, and the experimental equipment is connected to the regulated power supply module to realize heating;
  • the outdoor cooling module realizes the stable temperature of the working fluid in the high-pressure module of the water tank through the joint action of the plate heat exchanger and the high-pressure heating rod in the water tank, and the high-pressure water tank
  • the module communicates with the parameter measurement module through the pipeline control module, and transports the temperature-stabilized working fluid to the parameter measurement module for subsequent measurement.
  • the outdoor cooling module includes an outdoor air-cooled condenser, a refrigeration compressor, and a plate heat exchanger built in a water tank.
  • the air-cooled condenser is connected to the plate heat exchanger through the refrigeration compressor.
  • the heat exchanger and the air-cooled condenser form a pipeline loop through a drying filter and an expansion valve.
  • the pipeline control module includes a variable frequency pump, an electric valve, a temperature inverter, a particle replenishing port, and a pressure inverter, wherein the high-pressure water tank module is connected to the experimental equipment pipeline of the parameter measurement module through the pipeline control module.
  • the experimental equipment at the parameter measurement module forms a pipeline loop with the water tank through a temperature transformer, a pressure transformer, a flow transformer and a water tank.
  • the regulated power supply module further includes a high-power regulated power supply box, which is electrically connected with the parameter measurement module to provide regulated power for the experimental equipment, and at the same time, the high-power regulated power supply box realizes the debugging of the heating power of the experimental equipment through an external transformer.
  • the water tank in the high-pressure module of the water tank is communicated with the air source through the water tank pressure gauge and the pressurizing valve, and the water tank has a built-in plate heat exchanger, a heating rod, a temperature changer and a water level changer.
  • the working fluid is water, glycerol or nanofluid.
  • the water tank is provided with a pressurizing valve for adjusting the pressure of the water tank.
  • the multifunctional thermal experiment platform also includes a security alarm module for performing safety warning on the platform and a data acquisition module for data acquisition.
  • the pipeline control module forms a structural connection carrier for the data acquisition module, so that the data acquisition module can collect the measurement data of each instrument in a unified manner.
  • a multifunctional thermal experiment platform of the present invention through the combination of multiple outdoor modules, changes the operating state of the outdoor modules and the heater in the high-pressure water tank, providing different cooling loads and stable
  • the temperature and cooling load adjustment range is wide and the precision is high
  • the present invention can adjust the temperature of the high-pressure water tank module by using a high-refrigerating-capacity refrigeration circuit and a high-power heater under high-power conditions
  • the cooling circuit is a high-precision experimental environment for experimental equipment.
  • the high precision of the flow variable device in the present invention is limited to a certain flow range, especially for extremely low flow range, it innovatively overcomes the large error of the conventional single flow variable device in the full scale range. defect. More specifically, when the object to be cooled is high heat load and high flow rate, a flow variable with a high range should be used, and when the object to be cooled is an extremely low flow rate, a flow variable with a low range should be used.
  • the addition of pigments and particles to the pipeline of the present invention improves the tracing and heat exchange functions of the experimental platform, and more specifically, the flow in the experimental equipment is traced by adding pigments and particles, and the heat exchange enhanced particles are added by adding pigments and particles to trace the flow in the experimental equipment. Improve the enhanced heat transfer capacity of the experimental equipment.
  • the present invention forms a structural connection carrier for the data acquisition module by setting the pipeline control module, and the instrument measurement data is uniformly collected by the data acquisition module, which realizes the experimentation of various experimental equipment, reduces the operation cost, and is convenient to use and maintain;
  • the present invention can perform experiments on different working fluids, and can provide different operating pressures and temperatures, which is especially beneficial for thermal testing under different working conditions.
  • the equipment is protected in time and has strong applicability.
  • FIG. 1 is a schematic diagram of the overall composition of a multifunctional thermal experimental platform of the present invention.
  • Figure 2 is a schematic diagram of the composition of a high-pressure module of a water tank of a multifunctional thermal experiment platform of the present invention.
  • FIG. 3 is a schematic diagram of the composition of a pipeline control module of a multifunctional thermal experiment platform of the present invention.
  • FIG. 4 is a schematic diagram of the composition of a high-pressure water tank of a multifunctional thermal experiment platform of the present invention.
  • the present invention discloses a multifunctional thermal experiment platform, including an outdoor cooling module 1, a pipeline regulation module 3, a parameter measurement module 4, a regulated power supply module, and a water tank high-voltage module 2.
  • Outdoor cooling The module 1 and the high-pressure module 2 of the water tank realize the cooling of the working fluid in the high-pressure module 2 of the water tank through the plate heat exchanger 13, and the power supply module realizes the heating of the working fluid in the high-pressure module 2 of the water tank through the heating rod 51.
  • the water tank module 2 is in pipeline communication with the parameter measurement module 4 through the pipeline control module 3 to transport the working fluid liquid with stable temperature to the parameter measurement module 4 for subsequent measurement.
  • the external experimental equipment is connected to the pipeline regulation module 3 to realize cooling, and the experimental equipment is connected to the voltage stabilized power supply module 5 to realize heating.
  • the multifunctional thermal experiment platform also includes a safety alarm module 7 arranged in the high pressure module of the water tank and a data acquisition module 6 arranged in the pipeline control module 3, the safety alarm module 7; the safety alarm module 7 guarantees For the safety of the experiment, the data acquisition module 6 collects the experimental data; the safety alarm module 7 tracks the temperature and pressure of the experimental system to ensure the safety of the experiment; the measurement parameters are uniformly centralized in the data acquisition module 6 for processing, which is convenient for data collection.
  • the outdoor cooling module 1 includes multiple sets of cooling systems with low cooling load and one set of cooling systems with high cooling load, and different cooling capacities are moderated by switching for precise control.
  • the outdoor cooling module 1 includes an air-cooled condenser 11 arranged outdoors, a refrigeration compressor 12 and a plate heat exchanger 13 built in a water tank.
  • the air-cooled condenser 11 is in pipeline communication with the plate heat exchanger 13 through the refrigeration compressor 12.
  • the plate heat exchanger 13 and the air-cooled condenser 11 form a pipeline loop through the filter drier 14 and the expansion valve 15;
  • the heater adjusts the heating power of the high-pressure module 2 of the water tank to stabilize the temperature of the working fluid.
  • the high-pressure module 2 of the water tank is filled with gas through the pressurizing valve to increase the pressure in the high-pressure water tank and achieve the required operating pressure of the experimental equipment.
  • the air-cooled condenser 11 and the refrigeration compressor 12 are placed outdoors, and are cooled by heat exchange with the working medium in the water tank 31 through the plate heat exchanger 13 .
  • the outdoor cooling module 1 is provided with multiple independent refrigerating cycles in parallel to provide cooling load, including multiple independent refrigerating cycles with low refrigerating capacity and an independent set of multiple internal refrigerating cycles with high refrigerating capacity in parallel.
  • the refrigerant in the outdoor module 1 passes through the compressor, the air-cooled condenser 11, the drying filter 14, the expansion valve 15, and the plate heat exchanger 13 to form a cycle.
  • the water pump connects the plate heat exchanger 13 in the outdoor module with the high pressure water tank module 2 indoors and takes away the heat load of the high pressure water tank module.
  • the high-pressure module 2 of the water tank includes a water tank 31.
  • the water tank 31 is connected to the air source through the water tank pressure gauge 50 and the pressurizing valve 49.
  • the water tank 31 is connected with the plate heat exchanger 13, the heating rod 51, and the temperature inverter 54.
  • the water level inverter 52 the water tank pressure gauge 50 feedbacks the pressure in the water tank 31, and the water tank 31 reaches the operating pressure required for the experiment through the pressurized valve 54;
  • the heating rod 51 adjusts the temperature of the water tank 31 together through the temperature feedback of the temperature inverter 54 .
  • the water tank 31 is also provided with a drain valve, so that the water tank 31 can accommodate different liquid working fluids and conduct experiments under different working fluids.
  • the water tank is also provided with a water inlet and outlet, which is connected to the pipeline system of the experiment; the water level changer 52 detects the water level in the water tank 31, and when the water level is insufficient, the water inlet valve is opened to replenish water to ensure the safety and stability of the experiment; Correspondingly, a drain pipe 46 , an automatic water supply pipe 48 , a water inlet pipe 53 and a water outlet pipe 55 are provided to facilitate the regulation of the water level in the water tank 31 .
  • the pipeline control module 3 includes a variable frequency pump 32 , an electric valve 33 , a temperature inverter 41 , a particle replenishing port 35 , and a pressure inverter 42 .
  • the water tank 31 in the high-pressure water tank module 3 passes through the variable frequency pump 32 , the electric valve 33, the differential pressure gauge 39, the particle supplement port 35 are connected with the experimental equipment 40 of the parameter measurement module, and the experimental equipment 40 of the parameter measurement module 4 passes through the temperature variable device 41, the pressure variable device 42, the flow variable variable The device 34 and the water tank 31 form a pipeline loop.
  • the variable frequency pump 32 and the electric valve 33 are adjusted in the pipeline loop, the working fluid flow reaches the required range of the experiment.
  • the flow inlet of the experimental equipment can be accurately adjusted.
  • the flow variable device 34 with different ranges is selected, and the pipeline control module 2 is provided with a plurality of high-precision flow variable devices 34 with different ranges to meet the high-precision measurement requirements of different flow rates; 41.
  • the pressure variable device 42 can detect the temperature and pressure changes of the experimental equipment, and can respond in time to protect the experimental equipment when abnormal conditions occur.
  • the working fluid can pass through the different ranges of flow changers on the pipelines with different diameters.
  • the pipeline control module 3 can fine-tune the flow through the adjustment of the pipeline loop to meet the flow requirements of the experimental equipment.
  • the particle replenishment port 35 in the pipeline control module 3 of the present invention can add particulate matter to the flowing working fluid to meet the experimental conditions of the experimental equipment for nanofluids. Coloring the fluid, so that the fluid coloring meets the visual fluid experiment; the pipeline control module 3 is also equipped with particle filters, including but not limited to 4um particle filter 43, 100um particle filter 44, 1mm particle filter 45, filter out nanoparticle experiments.
  • the working medium particles added by the particle replenishing port 35 at the same time can reduce the damage to the variable frequency pump 32 and the water tank 31 .
  • the regulated power supply module 5 includes a high-power regulated power supply box, and the high-power regulated power supply box is connected to an external transformer to adjust the heating power of the experimental equipment; the regulated power supply module 5 provides a stable and variable current to the experimental heat source , to ensure a stable heat load in the experiment; after the pressure setting of the water tank 31 is completed, the liquid working medium in the water tank 31 is maintained by the outdoor cooling module 1 and the heating rod inside the water tank 31 to keep the temperature of the working medium stable, and the working medium adjusts the flow rate through the pipeline system After reaching the experimental requirements, enter the experimental equipment to carry out thermal experiments; the working fluid is water, glycerol or high temperature oil.
  • the present invention also includes a parameter statistics module and a control module.
  • the parameter statistics module includes a thermocouple, a differential pressure gauge, and a pressure gauge.
  • the parameter statistics module is connected to the computer through the data acquisition module for detecting and recording operating data.
  • the control module controls the overall adjustment and control of the experimental platform.
  • the heating rod, condenser, compressor, variable frequency pump, electric valve, water tank liquid level, and nitrogen pressure are all controlled by computer, which can control the inlet water temperature and pump power of the experimental system. , Experimental operating pressure, flow control to control.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as “first” or “second” may expressly or implicitly include one or more of that feature.
  • “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements.
  • installed may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
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  • Pathology (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

L'invention concerne une plateforme d'expérimentation thermique multifonctionnelle comprenant un module de refroidissement extérieur (1), un module de régulation et de commande de conduite (3), un module de mesure de paramètres (4), un module d'alimentation électrique stabilisée en tension (5) et un module haute pression de réservoir d'eau (2). Un dispositif externe d'expérimentation (40) est connecté au module de régulation et de commande de conduite (3) à des fins de refroidissement, le dispositif d'expérimentation (40) étant connecté au module d'alimentation électrique stabilisée en tension (5) à des fins de chauffage. Le module de refroidissement extérieur (1) coopère avec une tige chauffante (51) se situant dans le module haute pression de réservoir d'eau (2) au moyen d'un échangeur de chaleur à plaques (13) pour maintenir la température d'un milieu de travail à stabiliser, et le module haute pression de réservoir d'eau (2) communique par une conduite avec le module de mesure de paramètres (4) au moyen du module de régulation et de commande de conduite (3) pour transporter un milieu liquide de travail présentant une température stable vers le module de mesure de paramètres (4) à des fins de mesure ultérieure. La plate-forme d'expérimentation thermique multifonctionnelle présente les caractéristiques suivantes : bonne stabilité, grande précision de mesure, large plage réglable, et est pratique à entretenir et présente une applicabilité élevée.
PCT/CN2022/087857 2021-04-25 2022-04-20 Plate-forme d'expérimentation thermique multifonctionnelle WO2022228225A1 (fr)

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CN202110445977.4 2021-04-25
CN202110445977.4A CN113092526A (zh) 2021-04-25 2021-04-25 一种多功能热工实验平台

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Cited By (1)

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CN117007138A (zh) * 2023-08-09 2023-11-07 新疆生产建设兵团建设工程(集团)有限责任公司 岩体水流量监测装置

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CN113092526A (zh) * 2021-04-25 2021-07-09 散裂中子源科学中心 一种多功能热工实验平台
CN114487006A (zh) * 2022-01-19 2022-05-13 散裂中子源科学中心 一种多功能热工加热平台
CN114758572B (zh) * 2022-04-12 2022-10-11 山东和信电力科技有限公司 一种发电厂热工试验培训系统
CN115791243B (zh) * 2023-02-06 2023-04-28 中国核动力研究设计院 模块式微通道换热器标准化实验平台、方法、设备及介质

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CN1987440A (zh) * 2006-12-19 2007-06-27 上海理工大学 多项热工综合性能测试实验的组合方法
CN105869685A (zh) * 2016-04-06 2016-08-17 哈尔滨工程大学 模拟核反应堆中子反应性反馈过程的热工水力实验装置及方法
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117007138A (zh) * 2023-08-09 2023-11-07 新疆生产建设兵团建设工程(集团)有限责任公司 岩体水流量监测装置

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