In order to summarize the pilot experience of the exchange of methanol vehicles and deepen the pilot work of methanol vehicles, on October 9, 2015, the Department of Energy and Comprehensive Utilization of the Ministry of Industry and Information Technology organized a seminar on the pilot work of methanol vehicles in Baoji City. The relevant person in charge of the pilot group of the methanol automobile pilot group, the leader of the expert group of methanol automobile pilot work, the former minister of machinery industry He Guangyuan and some experts, the head of industrial and information technology in Shanxi, Shanghai, Shaanxi, Guizhou and Gansu provinces A total of about 100 people from the departments and pilot operating units, representatives of relevant industry associations and automobile companies attended the meeting. Globe valve, also known as cut-off valve, is a mandatory sealing valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak. When the medium enters the valve from under the valve disc, the resistance that the operating force needs to overcome is the friction force between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the valve stem The diameter of the valve should be large, otherwise the failure of the top of the valve stem will occur. According to the connection method, it is divided into three types: flange connection, thread connection and welding connection. After the appearance of the self-sealing valve, the medium flow direction of the globe valve is changed from the top of the valve disc into the valve cavity. At this time, under the action of the medium pressure, the force to close the valve is small, but the force to open the valve is large, and the diameter of the valve stem can be adjusted accordingly. decrease. At the same time, under the action of the medium, this form of valve is also tighter. my country's valve "Three Chemicals" once stipulated that the flow direction of the globe valve should be from top to bottom. When the globe valve is opened, the opening height of the valve disc is 25% to 30% of the nominal diameter. The flow rate has reached the maximum, indicating that the valve has reached the fully open position. Therefore, the fully open position of the globe valve should be determined by the stroke of the valve disc. Shut-Off Valve,Shutoff Valve,Automatic Shut Off Valve,Auto Shut Off Valve Jiangsu Qiantu Trading Co., Ltd. , https://www.qiantupump.com
At the meeting, the Ministry of Industry and Information Technology of Shanxi Province, Shanghai, Shaanxi Province, Guizhou Province and Gansu Province reported the progress of the pilot work on methanol vehicles in the region, the existing problems, the next work arrangements and related recommendations, Shanxi Province. Jinzhong City and Baoji City, Shaanxi Province introduced the experience of pilot data collection and management. Li Li, inspector of the Department of Energy Conservation and Comprehensive Utilization, made a concluding speech, comprehensively summarized the pilot work of methanol vehicles in the past year, and deployed recent key tasks, proposing to accelerate the pilot vehicles and filling facilities in each pilot area. Operation and use, continue to do methanol car announcements, technical data management and methanol vehicle evaluation research. During the meeting, delegates visited the Baoji Methanol Vehicle Operation and Filling Station.