2results about How to "Stable and safe installation" patented technology

The utility model provides a tubular evaporator, which relates to the technical field of evaporators and comprises an outer cylinder, an upper spraying cavity is arranged on the upper portion of the outer cylinder, a lower cavity is arranged on the lower portion of the outer cylinder, an evaporation chamber is arranged between the upper spraying cavity and heat exchange tubes, and a plurality of groups of heat exchange tubes are sleeved in the evaporation chamber. The upper end and the lower end of the heat exchange pipe are arranged in the set of positioning clamping pieces in a sleeved mode respectively, the upper end of the heat exchange pipe is led into the upper spraying cavity, the lower end of the heat exchange pipe is led into the lower cavity, the middle of the outer barrel is sleeved with a middle fixing sleeve, an outer pipe opening is formed in the middle of the front side of the middle fixing sleeve, and the upper spraying cavity is of a hollow cone structure. A nozzle is arranged at the upper end of the upper spraying cavity, and the heat exchange pipe is of a hollow cylinder structure. The efficiency that materials form film shapes on the inner walls of the heat exchange tubes is improved, film forming is more uniform, the speed of secondary steam is improved, the downward movement starting speed of liquid materials is further improved, and the film forming device is more efficient and practical.