Novel methanol fuel carbon dioxide fertilizer applicator system

The present invention discloses a novel methanol fuel fertilizer applicator system and is mainly applied to the field of carbon dioxide supplement of planting greenhouses in the north in winter. The novel methanol fuel fertilizer applicator system comprises a carbon dioxide generator (comprising a generator outer shell, a combustion machine, a combustion chamber, a rear fan, etc.), gas conveying and releasing pipelines and carbon dioxide concentration detectors in greenhouses. Main problems to be solved are as follows: firstly, gasified pure methanol fuel is used to solve problems that a traditional gas fertilizer machine is high in costs and pollutional; secondly, apertures and density of holes in gas transmission pipelines are calculated through simulation to solve problems of long fertilization process and uneven fertilization caused by concentrated fertilization in traditional gas; thirdly, a design of the rear fan reduces temperatures of the combustion chamber and solves problemsof low flow speed and too