Since the invention of the concentrator, it has been widely used in the chemical industry, pharmaceutical production and processing industry, ore processing industry, sewage treatment and many other fields. The mainstream concentrators used in production are spherical concentrators, single-effect concentrators and double-effect concentrators. The single-effect concentrator is suitable for the recovery of industrial alcohol such as dairy products, and can be used for vacuum concentration with small batches and many varieties with low heat sensitivity. The double-effect concentrator is suitable for the concentration of materials such as traditional Chinese medicine, western medicine, starch sugar, and dairy products, especially suitable for low-temperature vacuum concentration of heat-sensitive materials. The spherical concentration tank is mainly composed of the main body of the concentration tank, the condenser, the vapor-liquid separator, and the liquid-receiving barrel. Due to the reduced pressure concentration, the concentration time is short and the effective components of the heat-sensitive materials will not be destroyed.