Automatic drainage device of compressed air buffer tank

The utility model provides an automatic drainage device of a compressed gas buffer tank, which comprises a tank body, a drainage pipeline arranged at the inner bottom of the tank body, and a gas inlet pipeline and a gas transmission pipeline arranged at the top of the tank body, pressurizing blocks are arranged on the inner bottom wall of the tank body around the port of the drainage pipeline, and a gap for gas to pass through is arranged between adjacent pressurizing blocks. A baffle is arranged at the top of the pressurizing block, located over the end opening of the drainage pipeline and covers the end opening of the drainage pipeline. According to the utility model, the effects of preventing the drainage pipeline from being blocked and automatically cleaning the interior of the tank body are achieved. 本实用新型提供了一种压缩气缓冲罐自动排水装置，包括罐体、布置于罐体内底部的排水管线以及布置于罐体顶部的进气管线和输气管线，罐体内底壁上绕排水管线的端口布置有增压块，相邻的增压块之间布置有供气体穿过的间隙，增压块顶部设置有挡板，挡板位于排水管线端口的正上方并覆盖排水管线的端口。本实用新型产生了避免排水管线被堵塞和自动清洁罐体内部的效果。