Auxiliary ammonia exhausting device of ammonia-mixed diesel generator

Abstract

The invention provides an auxiliary ammonia exhausting device of an ammonia-mixed diesel generator. The auxiliary ammonia exhausting device of the ammonia-mixed diesel generator comprises a starting motor, a controller, an ammonia concentration sensor, an electric valve, an air compressor, an ECU and an ammonia gas flow controller. The starting motor is provided with a crankshaft. The crankshaft is connected with the air compressor to drive the air compressor to rotate. The starting motor of the diesel generator is used for rotating to drive the air compressor to inject air into an air cylinder, residual ammonia fuel in the air cylinder is taken away, corrosion of ammonia to the generator is reduced, the pneumatic performance of the diesel generator is improved, the cost is low, additionalpower supply equipment is not needed, and the auxiliary ammonia exhausting device is light, reliable and easy to maintain. The controller comprises a man-machine interaction interface, an analog-digital conversion interface, a control instruction interface and a communication interface, through cooperation communication between the controller and the ammonia concentration sensor, the ammonia gasflow controller, the air compressor, the electric valve and the ECU, the controller gives instructions to each component, and the purpose of intelligent ammonia exhausting is realized.

Description

technical field [0001] The invention belongs to a device for assisting the normal operation of a diesel generator, in particular to an ammonia-expelling device for an ammonia-mixed diesel generator. Background technique [0002] Due to the advantages of convenient storage, easy transportation, convenient tail gas treatment and no greenhouse gas after combustion, ammonia gas can effectively reduce greenhouse gas emissions through mixed combustion with traditional fossil fuels without changing the output power. There is a kind of diesel generator with mixed combustion of ammonia and diesel. The ammonia is mixed with diesel in the intake manifold and then enters the cylinder for combustion. After the generator stops working, the ammonia gas supply system should be turned off first to ensure that pure diesel will burn for a period of time. If this procedure is violated, the diesel gas supply system shuts off prior to the ammonia, resulting in residual ammonia in the cylinders. ...

AI Technical Summary

Problems solved by technology

If this procedure is violated, the diesel gas supply system shuts off prior to the ammonia, resulting in residual ammonia in the cylinders

On the one hand, the residual ammonia may corrode the cylinder or parts of the engine and affect the service life; on the other hand, it will cause the diesel generator to start longer or even difficult to start when it is turned on next time.

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