The invention relates to the technical field of 3d printing, and discloses an
atmosphere environment
control system and method and a printer, the
atmosphere environment
control system comprises a cabin body, a filtering device and a gas driving device, the cabin body is provided with a cabin cavity, at least one exhaust port is formed in the top of the cabin body, and an
exhaust valve is installed at the exhaust port; the cabin body is provided with a first
oxygen sensor and an air supply channel which are communicated with the cabin cavity, the cabin body is provided with an air outlet and an air return port, the air inlet end of the filtering device is connected with the air outlet, the air inlet end of the air driving device is connected with the air outlet end of the filtering device, and the air outlet end of the air driving device is connected with the air return port. The
exhaust valve arranged at the top of the cabin body and the first
oxygen sensor are linked in real time to monitor the
oxygen content,
inert gas with the density larger than that of oxygen is accurately supplemented through the gas supplementing channel, and the
density difference of the
inert gas is used for promoting oxygen to be enriched at the top of the cabin cavity and discharged through the
exhaust valve in a directional mode; and the problem of oxygen
permeation of the cabin body caused by aging of a sealing material is effectively solved.