The invention belongs to the technical field of secondary
water supply, and discloses an air circulation device in a secondary
water supply stainless steel water tank, which comprises a water tank, the left and right sides of the top of the water tank are fixedly connected with an
exhaust pipe and an air inlet
pipe respectively, the
exhaust pipe is located on the left side of the air inlet
pipe, and the outer wall of the lower side of the
exhaust pipe is fixedly connected with a liquid inlet
pipe; a liquid
discharge pipe is fixedly connected to the outer wall of the left side of the water tank, an exhaust
assembly is arranged on the exhaust pipe and located on the right side of the liquid inlet pipe, the exhaust
assembly comprises a shell connected with the exhaust pipe, two fan blades located in the shell and symmetrically arranged and a driving
assembly in transmission connection with the fan blades, and a reinforcing assembly is detachably installed on the upper side of the exhaust assembly. During
water supply,
water flow drives the two fan blades to rotate, the two fan blades drive the torsional spring to store energy through the transmission assembly, after water supply is stopped, the torsional spring for storing energy drives the fan blades to rotate through the transmission assembly, negative pressure is formed in the shell, and air flow in the water tank is exhausted outdoors through the exhaust pipe.