摘要
通过建立高压气瓶数值模型,考察放氢初始温度、放氢时间、放氢方式和放氢余压对气瓶连续缓慢放氢过程瓶内最低温度的影响。模拟结果表明,温度控制是连续放氢过程的重点,适当提高初始温度和增加放氢时间可有效提高瓶内最低温度。相比于先慢后快放氢和阶段式放氢,放氢过程应优先选用先快后慢放氢和线性放氢方式,这两种放氢方式在瓶内最低温度和氢气流量控制方面均取得良好效果。提高放氢余压也可提高放氢结束时瓶内最低温度,但提高放氢余压在一定程度上减少了放氢质量,除特殊要求或场景外不建议将放氢余压设定过高。
The effects of different initial temperature,time,method and residual pressure on the minimum temperature during continuous slow hydrogenation discharge were investigated by establishing a numerical model of high-pressure gas cylinder.The results showed that temperature control is the key point of continuous hydrogenation discharge process,and the minimum temperature in the gas cylinder can be effectively controlled by appropriately increasing the initial temperature and the time of hydrogenation discharge.Compared with the first slow then fast and the stage method of hydrogenation discharge,the first fast then slow and linear method should be preferred in the hydrogenation discharge process,and these two methods have achieved good results in the minimum temperature and the control of hydrogen flow in the gas cylinder.Increasing the residual pressure of hydrogenation discharge can also increase the minimum temperature in the gas cylinder at the end of hydrogenation discharge,but reduce the quality of hydrogenation discharge to a certain extent.It is not recommended to set the residual pressure of hydrogenation discharge too high except for special requirements or scenarios.
作者
王云峰
吕炎峰
王哲
曹文红
郭晓璐
Wang Yunfeng;Lu Yanfeng;Wang Zhe;Cao Wenhong;Guo Xiaolu(Hefei General Machinery Research Institute Co,.Ltd.,Hefei 230031;Zhejiang Rein Gas Equipment Co.,Ltd.)
出处
《石油炼制与化工》
CAS
北大核心
2025年第1期86-91,共6页
Petroleum Processing and Petrochemicals
基金
国家重点研发计划资助项目(2020YFB1506100)。
关键词
高压气瓶
放氢
数值模拟
high-pressure gas cylinder
hydrogen discharge
numerical simulation
作者简介
通讯联系人:王云峰,硕士,工程师,主要从事高压气瓶充放氢工艺研究工作。E-mail:2356705436@qq.com。
