Ammoniating system

Abstract

The invention discloses an ammoniating system, which is used for charging liquid ammonia into an ammonia storage tank from an ammonia source. The ammoniating system comprises a metering tank, a liquidlevel measuring device and a control valve assembly, wherein the metering tank is used for provisionally storing the liquid ammonia received from the ammonia source and outputting the liquid ammoniato the ammonia storage tank; the liquid level measuring device is connected with the metering tank and is used for displaying the liquid level of the liquid ammonia in the metering tank; the control valve assembly comprises a first switch valve connected with the charge-in end of the metering tank and a second switch valve connected with the output end of the metering tank, and is used for openingthe first switch valve and closing the second switch valve so as to supplement the liquid ammonia into the metering tank when the liquid level in the metering tank is lower than the supplementing valve, and opening the second switch valve and closing the first switch valve so as to output the liquid ammonia into the ammonia storage tank when the liquid level in the metering tank is higher than the output value. Through the design of the sealed tank body, the sufficient pressure of the ammonia in the tank body can be maintained; the ammonia gas maintains the liquid state; the ammonia chargingis fast and efficient; in the whole process, the system works at the preset pressure; the accurate statistics of the ammonia gas output quantity can be realized.

Description

technical field [0001] The invention relates to the technical field of automobile tail gas purification, and more specifically relates to an ammonia charging system for charging liquid ammonia from an ammonia source into an ammonia storage tank. 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 certai...

AI Technical Summary

Problems solved by technology

[0008] In view of this, the object of the present invention is to provide an ammonia charging system, the structural design of which can effectively solve the technical problems of the existing ammonia gas charging system, such as complicated process, slow ammonia charging speed, and high implementation cost.

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