CN218385290U - A fuel cell phase change enhanced cooling system - Google Patents
A fuel cell phase change enhanced cooling system Download PDFInfo
- Publication number
- CN218385290U CN218385290U CN202221829706.5U CN202221829706U CN218385290U CN 218385290 U CN218385290 U CN 218385290U CN 202221829706 U CN202221829706 U CN 202221829706U CN 218385290 U CN218385290 U CN 218385290U
- Authority
- CN
- China
- Prior art keywords
- phase
- phase change
- change
- outlet
- fuel cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 62
- 238000001816 cooling Methods 0.000 title claims abstract description 26
- 239000002826 coolant Substances 0.000 claims abstract description 55
- 239000012782 phase change material Substances 0.000 claims abstract description 46
- 230000017525 heat dissipation Effects 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000000110 cooling liquid Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000005507 spraying Methods 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 11
- 239000002351 wastewater Substances 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims 1
- 230000003993 interaction Effects 0.000 claims 1
- 239000002699 waste material Substances 0.000 claims 1
- 239000012071 phase Substances 0.000 description 57
- 238000000034 method Methods 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Fuel Cell (AREA)
Abstract
本实用新型公开一种燃料电池相变强化散热系统，包括电堆、冷却液泵、散热器、相变热端、相变冷端、相变材料储液罐；电堆冷却液出口连接冷却液泵的冷却液入口，冷却液泵的冷却液出口连接散热器冷却液入口，散热器的冷却液出口连接相变热端一次侧入口，相变热端一次侧出口连接电堆冷却液入口，形成燃料电池冷却液循环；相变热端二次侧出口连接相变冷端入口，相变冷端出口连接相变材料储液罐的入口，相变材料储液罐出口连接相变热端二次侧入口，形成相变材料冷却循环。本实用新型通过电堆热管理系统结合散热性能要求进行改进，利用相变材料潜热大幅增加散热能力，结合相变材料换热器性能强化散热，改善燃料电池在高温、高海拔、干燥恶劣环境下的工作性能。
The utility model discloses a fuel cell phase change enhanced heat dissipation system, which comprises an electric stack, a coolant pump, a radiator, a phase change hot end, a phase change cold end, and a phase change material liquid storage tank; the electric stack cooling liquid outlet is connected to the cooling liquid The coolant inlet of the pump, the coolant outlet of the coolant pump are connected to the coolant inlet of the radiator, the coolant outlet of the radiator is connected to the primary side inlet of the phase change hot end, and the primary side outlet of the phase change hot end is connected to the stack coolant inlet, forming Fuel cell coolant circulation; the outlet of the secondary side of the phase change hot end is connected to the inlet of the phase change cold end, the outlet of the phase change cold end is connected to the inlet of the phase change material liquid storage tank, and the outlet of the phase change material liquid storage tank is connected to the secondary side of the phase change hot end The side inlet forms a phase change material cooling cycle. The utility model improves the thermal management system of the electric stack in combination with the heat dissipation performance requirements, utilizes the latent heat of the phase change material to greatly increase the heat dissipation capacity, combines the performance of the phase change material heat exchanger to enhance heat dissipation, and improves the performance of the fuel cell in high temperature, high altitude, dry and harsh environments work performance.
Description
技术领域technical field
本实用新型属于燃料电池技术领域，尤其涉及一种燃料电池相变强化散热系统。The utility model belongs to the technical field of fuel cells, in particular to a fuel cell phase change enhanced cooling system.
背景技术Background technique
氢燃料电池因拥有能量密度高、噪声低、零排放的优点，并且产物只有水，被认为是氢能利用的最佳方式。其中，质子交换膜燃料(Proton Exchange Membrane Fuel Cell，PEMFC)因其工作温度低、启动快、功率密度高、模块化便于推广等优点成为研究热点，是目前应用领域最为广泛的燃料电池。Hydrogen fuel cells are considered to be the best way to utilize hydrogen energy due to their advantages of high energy density, low noise, zero emissions, and the product is only water. Among them, Proton Exchange Membrane Fuel Cell (PEMFC) has become a research hotspot due to its low operating temperature, fast start-up, high power density, modularization and easy promotion, and is currently the most widely used fuel cell.
可靠性和耐久性一直是制约PEMFC进一步应用和商业化的重要因素，热管理被视为燃料电池性能与耐久性的重要影响因素，其中散热是高温环境下大功率运行面临的主要挑战，尤其是在高温、高海拔、干燥恶劣环境下往往散热能力无法满足要求，散热寄生能耗占比高，导致燃料电池性能差、运行效率低。Reliability and durability have always been important factors restricting the further application and commercialization of PEMFC. Thermal management is regarded as an important factor affecting the performance and durability of fuel cells. Among them, heat dissipation is the main challenge for high-power operation in high-temperature environments, especially In high temperature, high altitude, dry and harsh environments, the heat dissipation capacity often cannot meet the requirements, and the parasitic energy consumption of heat dissipation accounts for a high proportion, resulting in poor fuel cell performance and low operating efficiency.
对于大功率水冷型燃料电池系统，一般采用液冷散热方式，将电堆产热通过去离子水、去离子水和乙二醇溶液、含纳米颗粒的纳米流体、相变材料等液体冷却工质带出，再释放到外部环境或被利用。现有相变材料冷却是将沸点与电堆正常工作温度相近的液体相变材料作为冷却工质，通入电堆冷却流道，利用相变吸热原理与电堆换热实现散热目的。此外，热管技术也被应用到燃料电池电堆散热中，现有技术是降热管的热端通过特殊工艺集成于电堆内部中，实现电堆散热。For high-power water-cooled fuel cell systems, liquid-cooled heat dissipation is generally adopted, and the heat generated by the stack is passed through liquid cooling fluids such as deionized water, deionized water and ethylene glycol solution, nanofluid containing nanoparticles, and phase change materials. taken out, released to the external environment or exploited. The existing phase change material cooling is to use the liquid phase change material with a boiling point close to the normal working temperature of the stack as the cooling medium, pass it into the cooling flow channel of the stack, and use the principle of heat absorption of the phase change to exchange heat with the stack to achieve the purpose of heat dissipation. In addition, the heat pipe technology is also applied to the heat dissipation of the fuel cell stack. In the existing technology, the hot end of the heat sink pipe is integrated into the inside of the stack through a special process to realize the heat dissipation of the stack.
但是，现有相变材料冷却直接作为冷却工质，发生相变，可能影响导热系数、压力平衡，甚至给膨胀水箱设计带来困难；而现有热管技术将热端集成在电堆内，改变了电堆结构，增加了电堆体积和重量，并且热管与电堆接触同样带来冷却液密封问题和固固热传导困难问题。However, the existing phase change material is directly used as the cooling medium, and the phase change may affect the thermal conductivity and pressure balance, and even bring difficulties to the design of the expansion tank; while the existing heat pipe technology integrates the hot end in the electric stack, changing the The structure of the stack increases the volume and weight of the stack, and the contact between the heat pipe and the stack also brings about the problem of sealing the coolant and the difficulty of heat conduction.
实用新型内容Utility model content
为了克服现有技术方法的不足，本实用新型的目的在于提出一种燃料电池相变强化散热系统，通过燃料电池电堆系统结合散热性能要求进行改进，利用相变材料潜热大幅增加散热能力，结合相变材料换热器性能强化散热，改善燃料电池在高温、高海拔、干燥恶劣环境下的工作性能。In order to overcome the deficiencies of the prior art methods, the purpose of this utility model is to propose a fuel cell phase change enhanced heat dissipation system, which is improved by combining the fuel cell stack system with the heat dissipation performance requirements, and the latent heat of the phase change material is used to greatly increase the heat dissipation capacity. The performance of the phase change material heat exchanger enhances heat dissipation and improves the working performance of the fuel cell in high temperature, high altitude, dry and harsh environments.
为实现以上目的，本实用新型采用技术方案是：一种燃料电池相变强化散热系统，包括燃料电池电堆、冷却液泵、散热器、相变热端、相变冷端、相变材料储液罐；In order to achieve the above objectives, the technical solution adopted by the utility model is: a fuel cell phase change enhanced heat dissipation system, including a fuel cell stack, a coolant pump, a radiator, a phase change hot end, a phase change cold end, a phase change material storage Liquid tank;
所述燃料电池电堆冷却液出口连接所述冷却液泵的冷却液入口，所述冷却液泵的冷却液出口连接所述散热器冷却液入口，所述散热器的冷却液出口连接所述相变热端一次侧入口，所述相变热端一次侧出口连接燃料电池电堆冷却液入口，形成燃料电池冷却液循环；The coolant outlet of the fuel cell stack is connected to the coolant inlet of the coolant pump, the coolant outlet of the coolant pump is connected to the radiator coolant inlet, and the coolant outlet of the radiator is connected to the phase The primary side inlet of the heat changing end, the primary side outlet of the phase change hot end is connected to the fuel cell stack coolant inlet to form a fuel cell coolant circulation;
所述相变热端二次侧出口连接所述相变冷端入口，所述相变冷端出口连接所述相变材料储液罐的入口，所述相变材料储液罐出口连接所述相变热端二次侧入口，形成相变材料冷却循环。The secondary side outlet of the phase change hot end is connected to the inlet of the phase change cold end, the outlet of the phase change cold end is connected to the inlet of the phase change material liquid storage tank, and the outlet of the phase change material liquid storage tank is connected to the The secondary side inlet of the phase change hot end forms a phase change material cooling cycle.
进一步的是，还包括喷雾装置和水回收装置，所述水回收装置入口与燃料电池电堆排水口相连，所述水回收装置出口与所述喷雾装置入口相连，所述喷雾装置产生的水雾送往所述散热器空气流道入口。Further, it also includes a spraying device and a water recovery device, the inlet of the water recovery device is connected to the drain port of the fuel cell stack, the outlet of the water recovery device is connected to the inlet of the spraying device, and the water mist produced by the spraying device to the radiator air runner inlet.
进一步的是，所述冷却液泵出口与所述燃料电池电堆入口间设置带旁路阀Ⅰ的旁路。Further, a bypass with a bypass valve I is provided between the outlet of the coolant pump and the inlet of the fuel cell stack.
进一步的是，所述散热器进出口间设置带旁路阀Ⅱ的旁路。Further, a bypass with a bypass valve II is provided between the inlet and outlet of the radiator.
进一步的是，所述相变材料储液罐出口经调节阀连接所述相变热端二次侧入口。Further, the outlet of the phase change material liquid storage tank is connected to the secondary side inlet of the phase change hot end through a regulating valve.
进一步的是，所述燃料电池电堆冷却液出口设置温度传感器T1、入口设置温度传感器T2，所述相变冷端出口设置温度传感器T3。Further, the outlet of the fuel cell stack coolant is provided with a temperature sensor T1, the inlet is provided with a temperature sensor T2, and the outlet of the phase change cold end is provided with a temperature sensor T3.
进一步的是，还包括控制器，所述控制器与温度传感器T1、温度传感器T2和温度传感器T3、旁路阀Ⅰ、旁路阀Ⅱ、调节阀、冷却液泵、散热器、废水回收装置和喷雾装置相连进行信息交互；所述控制器接收温度传感器T1、温度传感器T2和温度传感器T3的采集信号控制旁路阀Ⅰ、旁路阀Ⅱ、调节阀、冷却液泵、散热器、废水回收装置和喷雾装置的工况。Further, it also includes a controller, which is connected with temperature sensor T1, temperature sensor T2 and temperature sensor T3, bypass valve I, bypass valve II, regulating valve, coolant pump, radiator, waste water recycling device and The spraying devices are connected for information exchange; the controller receives the collected signals from the temperature sensor T1, the temperature sensor T2 and the temperature sensor T3 to control the bypass valve I, the bypass valve II, the regulating valve, the coolant pump, the radiator, and the wastewater recovery device and the working condition of the spraying device.
进一步的是，所述相变热端安置于低处，所述相变冷端安置于高处，所述相变材料储液罐处于两者之间，所述相变热端中的相变材料被冷却液加热相变后，流向所述相变冷端散热冷却后变回液态，靠自身重力流回所述相变材料储液罐和相变热端，形成相变材料冷却循环。Further, the phase change hot end is arranged at a low place, the phase change cold end is arranged at a high place, and the phase change material liquid storage tank is between the two, and the phase change in the phase change hot end After the material is heated by the cooling liquid and undergoes a phase change, it flows to the cold end of the phase change to dissipate heat and cool down, and then returns to a liquid state, and flows back to the phase change material liquid storage tank and the phase change hot end by its own gravity, forming a phase change material cooling cycle.
进一步的是，所述相变冷端利用自然冷却、迎风效应冷却、风机强制冷却或空调废排风冷却，实现冷端散热。Further, the cold end of the phase change utilizes natural cooling, windward effect cooling, fan forced cooling, or air-conditioning exhaust air cooling to realize heat dissipation at the cold end.
采用本技术方案的有益效果：The beneficial effect of adopting this technical solution:
本实用新型充分利用燃料电池热管理拓扑结构并进行改进，实现物质实现能量物质的综合利用，提高燃料电池整体能源利用率。通引入相变材料循环形成分体式热管，充分利用热管较高的换热效率与相变材料相变潜热，可以大幅度强化散热能力，改善燃料电池在高温、高海拔、干燥恶劣环境下的工作性能。The utility model fully utilizes and improves the thermal management topological structure of the fuel cell, realizes the comprehensive utilization of matter and energy, and improves the overall energy utilization rate of the fuel cell. By introducing a phase change material cycle to form a split heat pipe, making full use of the high heat transfer efficiency of the heat pipe and the phase change latent heat of the phase change material can greatly enhance the heat dissipation capacity and improve the work of the fuel cell in high temperature, high altitude, dry and harsh environments performance.
附图说明Description of drawings
图1为本实用新型的一种燃料电池相变强化散热系统的结构示意图；Fig. 1 is a structural schematic diagram of a fuel cell phase change enhanced heat dissipation system of the present invention;
图2为本实用新型的一种燃料电池相变强化散热系统的顶部示意图；Fig. 2 is a top schematic diagram of a fuel cell phase change enhanced heat dissipation system of the present invention;
图3为本实用新型的一种燃料电池相变强化散热系统的控制连接示意图。Fig. 3 is a schematic diagram of the control connection of a fuel cell phase change enhanced heat dissipation system of the present invention.
具体实施方式Detailed ways
为了使实用新型的目的、技术方案和优点更加清楚，下面结合附图对本实用新型作进一步阐述。In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further elaborated below in conjunction with the accompanying drawings.
在本实施例中，参见图1所示，一种燃料电池相变强化散热系统，包括燃料电池电堆、冷却液泵、散热器、相变热端、相变冷端、相变材料储液罐；In this embodiment, as shown in Figure 1, a fuel cell phase change enhanced heat dissipation system includes a fuel cell stack, a coolant pump, a radiator, a phase change hot end, a phase change cold end, and a phase change material storage liquid Can;
所述燃料电池电堆冷却液出口连接所述冷却液泵的冷却液入口，所述冷却液泵的冷却液出口连接所述散热器冷却液入口，所述散热器的冷却液出口连接所述相变热端一次侧入口，所述相变热端一次侧出口连接燃料电池电堆冷却液入口，形成燃料电池冷却液循环；The coolant outlet of the fuel cell stack is connected to the coolant inlet of the coolant pump, the coolant outlet of the coolant pump is connected to the radiator coolant inlet, and the coolant outlet of the radiator is connected to the phase The primary side inlet of the heat changing end, the primary side outlet of the phase change hot end is connected to the fuel cell stack coolant inlet to form a fuel cell coolant circulation;
所述相变热端二次侧出口连接所述相变冷端入口，所述相变冷端出口连接所述相变材料储液罐的入口，所述相变材料储液罐出口连接所述相变热端二次侧入口，形成相变材料冷却循环。The secondary side outlet of the phase change hot end is connected to the inlet of the phase change cold end, the outlet of the phase change cold end is connected to the inlet of the phase change material liquid storage tank, and the outlet of the phase change material liquid storage tank is connected to the The secondary side inlet of the phase change hot end forms a phase change material cooling cycle.
作为上述实施例的优化方案1，如图2所示，还包括喷雾装置和水回收装置，所述水回收装置入口与燃料电池电堆排水口相连，所述水回收装置出口与所述喷雾装置入口相连，所述喷雾装置产生的水雾送往所述散热器空气流道入口。As the optimization scheme 1 of the above-mentioned embodiment, as shown in Figure 2, it also includes a spraying device and a water recovery device, the inlet of the water recovery device is connected to the drain port of the fuel cell stack, and the outlet of the water recovery device is connected to the spray device The inlets are connected, and the water mist generated by the spraying device is sent to the inlet of the air passage of the radiator.
所述水回收装置随所述燃料电池电堆工作，所述燃料电池电堆中产生的尾气废水经所述水回收装置处理并储存，待需要时经所述喷雾装置用以喷雾冷却。The water recovery device works with the fuel cell stack, and the exhaust waste water generated in the fuel cell stack is treated and stored by the water recovery device, and is used for spray cooling by the spray device when needed.
雾化后水由于其汽化潜热而有较好的冷却效果，同时增加通过散热器芯体内空气湿度进而增加其比热，可以提高散热器性能，同时可以减少散热器寄生损耗，减少散热器工作噪声。After atomization, the water has a better cooling effect due to its latent heat of vaporization. At the same time, increasing the humidity of the air passing through the core of the radiator increases its specific heat, which can improve the performance of the radiator, reduce the parasitic loss of the radiator, and reduce the working noise of the radiator. .
作为上述实施例的优化方案2，如图3所示，所述冷却液泵出口与所述燃料电池电堆入口间设置带旁路阀Ⅰ(M1)的旁路。As the optimization scheme 2 of the above embodiment, as shown in FIG. 3 , a bypass with a bypass valve I (M1) is provided between the outlet of the coolant pump and the inlet of the fuel cell stack.
所述散热器进出口间设置带旁路阀Ⅱ(M2)的旁路。A bypass with a bypass valve II (M2) is set between the inlet and outlet of the radiator.
所述相变材料储液罐出口经调节阀(M3)连接所述相变热端二次侧入口。The outlet of the phase change material liquid storage tank is connected to the secondary side inlet of the phase change hot end through a regulating valve (M3).
所述燃料电池电堆冷却液出口设置温度传感器T1、入口设置温度传感器T2，所述相变冷端出口设置温度传感器T3。The outlet of the fuel cell stack coolant is provided with a temperature sensor T1, the inlet is provided with a temperature sensor T2, and the outlet of the phase change cold end is provided with a temperature sensor T3.
控制器与温度传感器T1、温度传感器T2和温度传感器T3、旁路阀Ⅰ、旁路阀Ⅱ、调节阀、冷却液泵、散热器、废水回收装置和喷雾装置相连进行信息交互；所述控制器接收温度传感器T1、温度传感器T2和温度传感器T3的采集信号控制旁路阀Ⅰ、旁路阀Ⅱ、调节阀、冷却液泵、散热器、废水回收装置和喷雾装置的工况。The controller is connected with temperature sensor T1, temperature sensor T2 and temperature sensor T3, bypass valve I, bypass valve II, regulating valve, coolant pump, radiator, waste water recycling device and spraying device for information exchange; the controller Receive signals collected from temperature sensor T1, temperature sensor T2 and temperature sensor T3 to control the working conditions of bypass valve I, bypass valve II, regulating valve, coolant pump, radiator, waste water recycling device and spraying device.
所述控制策略，通过所述控制器控制旁路阀Ⅰ、旁路阀Ⅱ、调节阀、冷却液泵、散热器、喷雾装置，使得燃料电池电堆冷却液进出口温度满足要求。The control strategy uses the controller to control the bypass valve I, bypass valve II, regulating valve, coolant pump, radiator, and spraying device, so that the temperature of the inlet and outlet of the fuel cell stack coolant meets the requirements.
作为上述实施例的优化方案3，所述相变热端安置于低处，所述相变冷端安置于高处，所述相变材料储液罐处于两者之间，所述相变热端中的相变材料被冷却液加热相变后，流向所述相变冷端散热冷却后变回液态，靠自身重力流回所述相变材料储液罐和相变热端，形成相变材料冷却循环。As optimization scheme 3 of the above-mentioned embodiment, the phase change hot end is placed at a low place, the phase change cold end is placed at a high place, the phase change material liquid storage tank is between the two, and the phase change hot end is placed at a high place. After the phase change material in the end is heated by the cooling liquid and undergoes a phase change, it flows to the phase change cold end to dissipate heat and cool down and then turns back to a liquid state, and flows back to the phase change material liquid storage tank and the phase change hot end by its own gravity to form a phase change Material cooling cycle.
所述相变冷端利用自然冷却、迎风效应冷却或风机强制冷却，实现冷端散热。The cold end of the phase change utilizes natural cooling, windward effect cooling or fan forced cooling to realize heat dissipation at the cold end.
相变冷端可以自我调节，使得相变冷端C口温度低于相变材料相变温度；The cold end of the phase change can be self-adjusted, so that the temperature of the port C of the cold end of the phase change is lower than the phase change temperature of the phase change material;
为了更好的理解本实用新型，下面对本实用新型的工作原理作一次完整的描述：In order to better understand the utility model, a complete description is made to the working principle of the utility model below:
冷却液泵带动燃料电池冷却液带走电堆热量，冷却液通过旁路阀与散热器支路流入相变热端，之后流回电堆；相变材料储液罐中相变材料通过调节阀M3流入相变热端二次侧与一次侧冷却液换热，相变汽化后流入相变冷端，在自然空气、迎风效应、风机、空调废排风作用下冷却，之后流回储液罐进行下一次循环。The coolant pump drives the fuel cell coolant to take away the heat from the stack, and the coolant flows into the phase change hot end through the bypass valve and radiator branch, and then flows back to the stack; the phase change material in the phase change material storage tank passes through the regulating valve M3 Flowing into the secondary side of the hot end of the phase change and exchanging heat with the primary cooling liquid, after the phase change is vaporized, it flows into the cold end of the phase change, and is cooled by natural air, wind effect, fan, and exhaust air from the air conditioner, and then flows back to the liquid storage tank for further cooling. next cycle.
燃料电池系统启停过程中，燃料电池电堆冷却液出入口侧温度低于燃料电池额定工作温度时，冷却液泵启动，旁路阀Ⅰ打开，冷却液通过旁路阀Ⅰ支路流回电堆，不经过散热器与相变换热，系统不进行散热，以便电堆更高效启停。During the start-up and shutdown of the fuel cell system, when the temperature at the inlet and outlet side of the fuel cell stack coolant is lower than the rated operating temperature of the fuel cell, the coolant pump starts, the bypass valve I opens, and the coolant flows back to the stack through the bypass valve I branch. Without heat sink and phase conversion, the system does not dissipate heat, so that the stack can start and stop more efficiently.
燃料电池电堆达到正常工作温度后，旁路阀Ⅰ关闭，旁路阀Ⅱ、调节阀打开，冷却液通过旁路阀Ⅱ旁路流经相变热端，相变材料储液罐中的相变材料通过调节阀M3流向相变热端，并与相变热端一次侧的冷却液进行换热。调节调节阀M3开度，使得更多冷却液、相变材料流向换热器，增强系统换热能力，保证相变材料流量与相变热端HE一次侧冷却液流量匹配在合理范围内。After the fuel cell stack reaches the normal working temperature, the bypass valve Ⅰ is closed, the bypass valve Ⅱ and the regulating valve are opened, and the coolant flows through the bypass valve Ⅱ to bypass the phase change hot end, and the phase change material in the liquid storage tank The change material flows to the hot end of the phase change through the regulating valve M3, and exchanges heat with the cooling liquid on the primary side of the hot end of the phase change. Adjust the opening of the regulating valve M3 to allow more coolant and phase change materials to flow to the heat exchanger, enhance the heat exchange capacity of the system, and ensure that the flow of phase change materials matches the flow of coolant on the primary side of the phase change hot end HE within a reasonable range.
当无源换热能力达到一定程度，即调节阀开度一定时，需要降低旁路阀Ⅱ开度，使得更多冷却液流经散热器进行有源散热。当燃料电池电堆冷却液出口侧温度升高，则增大散热器风机转速以提高散热能力；燃料电池电堆冷却液出口侧温度下降，则降低散热器风机转速。When the passive heat exchange capacity reaches a certain level, that is, when the opening of the regulating valve is constant, it is necessary to reduce the opening of the bypass valve II so that more coolant flows through the radiator for active heat dissipation. When the temperature at the outlet side of the fuel cell stack coolant rises, the fan speed of the radiator is increased to improve heat dissipation; when the temperature at the outlet side of the fuel cell stack coolant drops, the fan speed of the radiator is reduced.
该控制方式以水循环为基础，采用以相变材料为工质的分体式热管为无源散热方式并强化电堆散热能力，其冷却能力与水、相变材料汽化潜热有关，无源散热辅助电堆可以减少系统的寄生损耗。This control method is based on water circulation, adopts the split heat pipe with phase change material as the working medium as the passive heat dissipation method, and strengthens the heat dissipation capacity of the stack. Its cooling capacity is related to the latent heat of vaporization of water and phase change materials. The heap can reduce the parasitic loss of the system.
以上显示和描述了本实用新型的基本原理、主要特征和本实用新型的优点。本行业的技术人员应该了解，本实用新型不受上述实施例的限制，上述实施例和说明书中描述的只是说明本实用新型的原理，在不脱离本实用新型精神和范围的前提下，本实用新型还会有各种变化和改进，这些变化和改进都落入要求保护的本实用新型范围内。本实用新型要求保护范围由所附的权利要求书及其等效物界定。The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221829706.5U CN218385290U (en) | 2022-07-15 | 2022-07-15 | A fuel cell phase change enhanced cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221829706.5U CN218385290U (en) | 2022-07-15 | 2022-07-15 | A fuel cell phase change enhanced cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218385290U true CN218385290U (en) | 2023-01-24 |
Family
ID=84961389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221829706.5U Active CN218385290U (en) | 2022-07-15 | 2022-07-15 | A fuel cell phase change enhanced cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218385290U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115064726A (en) * | 2022-07-15 | 2022-09-16 | 西南交通大学 | A kind of fuel cell phase change enhanced heat dissipation method |
| CN117393797A (en) * | 2023-10-10 | 2024-01-12 | 西南交通大学 | A fuel cell stack cooling system and control method |
-
2022
- 2022-07-15 CN CN202221829706.5U patent/CN218385290U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115064726A (en) * | 2022-07-15 | 2022-09-16 | 西南交通大学 | A kind of fuel cell phase change enhanced heat dissipation method |
| CN115064726B (en) * | 2022-07-15 | 2024-03-08 | 西南交通大学 | Phase change reinforced heat dissipation method for fuel cell |
| CN117393797A (en) * | 2023-10-10 | 2024-01-12 | 西南交通大学 | A fuel cell stack cooling system and control method |
| CN117393797B (en) * | 2023-10-10 | 2024-10-01 | 西南交通大学 | Fuel cell stack cooling system and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111370804B (en) | Electricity-electricity mixed fuel cell automobile water heat management system and control method thereof | |
| CN110544786B (en) | Combined cooling, heating and power system of high-temperature proton exchange membrane fuel cell and working method thereof | |
| CN208608304U (en) | Fuel cell auxiliary system | |
| CN218385290U (en) | A fuel cell phase change enhanced cooling system | |
| CN101719385B (en) | Superconductive heat tube type nuclear power heat-clod cogeneration system | |
| CN108317767B (en) | Proton exchange membrane fuel cell waste heat utilization system and method | |
| CN109037731B (en) | A liquid-cooled module for heat transfer and temperature equalization in high-power fuel cells | |
| CN113258105B (en) | Control method of waste heat recovery system of liquid hydrogen fuel cell | |
| CN104835976A (en) | Fuel cell cooling system utilizing phase change cooling | |
| CN110400945A (en) | Fuel cell waste heat recovery system, fuel cell vehicle and working method thereof | |
| CN208781986U (en) | A kind of battery case based on heat pipe application | |
| CN108232235A (en) | A kind of Intelligent heat management system for methanol fuel cell automobile | |
| CN206352878U (en) | A kind of heating system for reclaiming computer room liquid-cooling heat radiation amount | |
| CN1529376A (en) | Fuel cell thermal management system with two-way cycle control | |
| CN112864490A (en) | Bubbling type power battery thermal management system based on refrigerant gas-liquid two-phase heat exchange | |
| CN101212059A (en) | A cooling method and system for a high-temperature proton exchange membrane fuel cell stack | |
| CN115064726B (en) | Phase change reinforced heat dissipation method for fuel cell | |
| CN109638312A (en) | A kind of fuel cell system recirculated cooling water device | |
| CN209626373U (en) | The direct heat management system of power battery heat-pump-type refrigerant | |
| CN115020759B (en) | Anode water management control system and method for fuel cell | |
| CN218918959U (en) | Combined heat and power system | |
| CN208124667U (en) | One proton exchanging film fuel battery afterheat utilizing system | |
| CN215644590U (en) | Hydrogen temperature and humidity regulation and control system for fuel cell | |
| CN214625114U (en) | Liquid hydrogen fuel cell waste heat recovery system | |
| CN219873608U (en) | Fuel cell thermal management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |