Ammonia gas filling metering device and ammonia gas filling metering method for slow ammonia gas filling and rapid ammonia gas filling

Abstract

The invention discloses an ammonia gas filling measuring device and is used for ammonia gas filling metering in a solid ammonia gas storage tank. The ammonia gas filling measuring device comprises a first valve body, a unit tank, a flow acquisition device, a second valve body and a controller which are sequentially communicated; the first valve body is communicated with a gas source; the second valve body is communicated with the solid ammonia gas storage tank; a temperature sensor is arranged on the unit tank; a throttling element, a gas temperature sensor, a front-end pressure sensor and a rear-end pressure sensor are arranged on the flow acquisition device; the controller comprises a signal acquisition device, a computing device and a control device; the signal acquisition device is in signal connection with the temperature sensor, the gas temperature sensor, the front-end pressure sensor and the rear-end pressure sensor simultaneously; the control device is connected with the first valve body and the second valve body. Through metering at the ammonia gas filling stage, the quick metering of the quality of filled ammonia gas in the solid ammonia gas storage tank is realized. The invention further discloses an ammonia gas filling metering method for slow ammonia gas filling and rapid ammonia gas filling based on the ammonia gas filling measuring device.

Description

technical field [0001] The invention relates to the technical field of gas flow metering, in particular to an ammonia charging metering device and ammonia charging metering methods for slow ammonia charging and fast ammonia charging. Background technique [0002] Solid ammonia technology is an emerging off-machine post-processing technology in recent years. There are active substances in the ammonia storage tank to absorb ammonia gas, which will release ammonia gas after being heated, and then inject ammonia gas through the injection system to perform selective catalytic reduction treatment of NOx in the exhaust gas. Thereby reducing the pollution of the pollutants in the exhaust gas to the environment and the harm to the human body. [0003] When the ammonia gas in the ammonia storage tank of the solid ammonia system is exhausted, it is necessary to refill the ammonia storage tank with ammonia gas. The quality of ammonia gas filled into the ammonia storage tank is not only...

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Problems solved by technology

[0004] At present, if you want to determine the quality of ammonia gas in the ammonia storage tank during the ammonia filling process, the best way is to weigh the ammonia storage tank. Re-bringing a lot of work

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