Industrial water-cooled squeal-free water chiller

The invention belongs to the field of water chillers, and particularly relates to an industrial water-cooled squeal-free water chiller. The industrial water-cooled squeal-free water chiller comprises a refrigeration cycle, a condenser water-cooling heat dissipation cycle and an evaporator cold water control cycle, a thermostatic expansion valve in the refrigeration cycle comprises a valve shell, an ejector rod A, a diaphragm, a sealing cover, a flow blocking plate, an ejector rod B, an adjusting tool and the like, a fixing block is installed between a containing groove C used for containing refrigerants and a through groove used for circulating the refrigerants in the valve shell, and the fixing block is provided with a circular groove A and a circular groove B which are in communication with the containing groove C and the through groove; and the self-locking function of matching of two worms and worm wheels enables the two telescopic rods to keep effective compression all the time, then, the two telescopic