The main purpose of a civil air defense emergency command vehicle is to enhance the communications protection capabilities of air defense, disaster prevention, and emergency events in the civil air defense warfare when riots occur. The role of such professional vehicles cannot be ignored! Now that more and more regional governments are aware of its importance, they have purchased a civil air defense emergency command vehicle! Last year coincided with the 70th anniversary of the victory of the Chinese People's War of Resistance Against Japanese Aggression, Luan County purchased eight air defense emergency command vehicles, the city’s civil air defense emergency maneuver command and communication system was successfully completed, and the civil air defense department conscientiously implemented “wartime air defense and emergency assistance. The specific requirements of the “general requirements†of peacetime services are bound to greatly enhance the city’s capacity for air defense command and interconnection, emergency rescue capabilities, and disaster prevention and reduction capabilities, and significantly increase the level of civil air defense informationization. In the 14th year, Heyuan, Guangdong Province held a civil air defense emergency command vehicle project. These command vehicles have the combined functions of on-site information acquisition, processing, decision-making, commanding, and coordination. They will greatly strengthen the city's capacity for interpersonal command interconnection and emergency rescue, and are an urban emergency. The extension of command means! In the 13 years, Jiaxing City also organized 5 civil defense emergency command vehicles and 26 conductors of communications and technical personnel to go to Jiangxi Shangrao, Quzhou, Zhejiang, Lishui and other places for emergency communications support training activities. For various levels of fixed command posts and mobile command posts, training on the organization and command of simulated accidents, communication scheduling, and collection and transmission of various data elements on the spot were conducted. The training achieved the expected results, laying a good foundation for the Jiaxing Civil Air Defense's emergency command communications support work. The civil air defense emergency command vehicle is very effective in dealing with some unexpected events. It can be seen that more and more local governments recognize the role of the air defense emergency command vehicle and believe that the emergency command vehicle will become more popular in the future and allow more. People see it! There are three basic types of fixed bed reactor: (1) axial adiabatic fixed bed reactor. The fluid flows through the bed along the axial direction, and there is no heat exchange between the bed and the outside world. (2) radial adiabatic fixed bed reactor. The fluid flows through the bed along the radial direction. Centrifugal flow or centripetal flow can be adopted. There is no heat exchange between the bed and the outside world. Compared with axial reactor, radial reactor has shorter flow distance, larger cross-sectional area and smaller fluid pressure drop. But the structure of radial reactor is more complicated than that of axial reactor. The above two forms are adiabatic reactors, suitable for the reaction heat effect is not large, or the reaction system can withstand adiabatic conditions caused by the reaction heat effect of the temperature changes. (3) The tubular fixed-bed reactor is composed of multiple reaction tubes in parallel. The catalyst is arranged in the tube or between the tubes, and the heat carrier flows through the tubes or tubes for heating or cooling. The diameter of the tubes is usually between 25 ~ 50mm, and the number of tubes can be as many as tens of thousands of roots. The tubular fixed bed reactor is suitable for the reaction with high thermal effect. In addition, there is a reactor composed of the above basic forms in series, called a multistage fixed bed reactor. Desulfurizer,filter,Reaction kettle,Reactor YANTAI DONGTAI STANDER OFFSHORE ENGINEERING CO.,LTD , https://www.dongtaicolumbus.com