Replaceable current limiting device capable of adjusting current limiting ring along with temperature

The utility model provides a replaceable flow limiting device capable of adjusting a flow limiting ring along with temperature. The replaceable flow limiting device comprises a valve body and a shell detachably connected to the right side of the valve body. Inner cavities penetrating through the left side and the right side of the valve body and the shell are transversely formed in the valve body and the shell, the inner cavities of the valve body and the shell are communicated with each other, and a retainer, a flow limiting ring and a fixing piece are sequentially arranged in the inner cavity of the valve body from left to right. The retainer is a perforated plate blocked on the left side in the inner cavity of the valve body; the flow limiting ring is at least one annular body of which the inner hole diameter can be changed along with the temperature change; the fixing piece is detachably connected to the right side of the interior of the valve body inner cavity and tightly presses the retainer and the flo