Ammonia filling system

Abstract

The invention discloses an ammonia filling system. The system is used for ammonia filling of a solid ammonia storage tank, and comprises a preheating tank, a pressure stabilizing tank, a supplementingvalve, and a flow meter, the preheating tank communicates with an ammonia gas source, and is used for heating the input ammonia to a gaseous state within a preset temperature range; the pressure stabilizing tank communicates with the preheating tank and is used for containing a certain amount of ammonia gas so as to stabilize and output the ammonia gas input by the preheating tank; the supplementing valve is arranged on an ammonia pipeline between the preheating tank and the pressure stabilization tank and is used for controlling the ammonia gas to be supplemented into the pressure stabilization tank; and the flow meter is connected with the output end of the pressure stabilization tank and used for metering the total amount of the output ammonia gas, the flow meter is connected with an output control valve for controlling the output of the ammonia gas output port. The system is used for filling ammonia gas into the storage tank along with the vehicle, the calculation of the amount ofthe injected ammonia gas does not depend on the gas condition in the storage tank, accurate filling amount can be obtained directly through calculation of stable output, the ammonia filling amount isprevented from being insufficient or excessive, and the problem that an ammonia filling system is difficult to accurately control the filling amount, and the requirement of the ammonia storage tank along with the vehicle cannot be met is solved.

Description

technical field [0001] The invention relates to the technical field of vehicle tail gas treatment equipment, and more specifically relates to an ammonia charging system. Background technique [0002] The exhaust gas treatment device of the automobile is mainly a device that purifies the exhaust gas under the action of the catalyst to reduce the pollution to the environment. Automobile exhaust is the exhaust gas produced by the use of automobiles. It contains hundreds of different compounds. The pollutants include solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead and sulfur oxides. [0003] At present, the mainstream exhaust gas purification equipment is realized by catalyst. When high-temperature automobile exhaust gas passes through the purification device, the purifier in the catalyst will enhance the activity of CO, HC and NOx gases, and promote certain redox chemical reactions. In order to change the harmful gas into a harml...

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Problems solved by technology

[0008] In view of this, the purpose of the present invention is to provide an ammonia charging system, the design of which can effectively solve the problem that the existing ammonia charging system is difficult to accurately control the charging amount, and cannot meet the needs of the on-board ammonia storage tank, etc. technical issues

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