In-place automatic washing device for freeze dryer

Abstract

An on-site automatic cleaning device for a freeze-drying machine, comprising a guide rail arranged in a freeze-drying chamber, a car base is provided on the guide rail, and cleaning comb racks arranged in layers are connected to the car base, and nozzles are arranged on the cleaning comb rack. The car base is provided with a water pipe reel and a trachea reel and is connected to a coaxial reel shaft, and the reel shaft is connected to an air motor through a reel chain, and the water pipe reel and the trachea reel are provided with The inlets of the water pipe and the air pipe are respectively connected to the water pipe joint and the air pipe joint located at the lower end of the car base, the outlet of the water pipe and the air pipe are connected to the pneumatic valve through the rotary joint, and the outlet of the pneumatic valve is connected to the cleaning comb rack. Therefore, the problem of in-situ cleaning of the freeze-drying warehouse is solved, and reciprocating cleaning and blowing can be automatically performed according to the actual needs according to the program. It has the characteristics of program control, adjustable water volume, cost-effective, simple structure, no need for manpower, no space occupation, stable and safe, automatic reciprocating cleaning, no dead angle, no secondary pollution, and meets GMP requirements.

Description

technical field [0001] The invention relates to an on-site automatic cleaning device for a vacuum freeze dryer (freeze dryer for short). technical background [0002] Vacuum freeze-drying, also known as freeze-drying, is to first freeze the water-containing material below the eutectic point temperature, so that the free water in it becomes ice, and then, under the appropriate vacuum conditions in the freeze-drying chamber, the ice is sublimated by heating Or the technology of evaporating the adsorbed water, escaping from the material and removing it, so as to obtain the dry product. [0003] In the freeze-drying process, the drying process of the material is completed under vacuum conditions, which means that most of the moisture in the material is removed by sublimation. At -40°C, 1kg of ice will sublime 2.7m 3 The volume of the ice gas will expand by 2700 times, so during the sublimation process, there will be a sublimation airflow continuously escaping from the material...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an on-site automatic cleaning device for freeze-drying machines, which solves the problem of on-site cleaning of freeze-drying warehouses, and can automatically perform reciprocating cleaning and blowing off according to actual needs.

Images