Device for determining liquid flow through gas-liquid mixing backflow

The invention discloses a device for determining the liquid flow through gas-liquid mixing backflow, and the device comprises a liquid storage tank which is internally provided with a support; a gas-liquid separator positioned in the liquid storage tank and arranged at the top of the support; a gas-liquid mixing pipe, wherein the liquid outlet end of the gas-liquid mixing pipe is located at the top inlet of the liquid storage tank, and the liquid outlet end and the gas-liquid separator are correspondingly arranged; a liquid outlet pipe, wherein the liquid inlet end of the liquid outlet pipe is connected with the bottom of the liquid storage tank; and a transparent observation pipe, wherein one end of the transparent observation pipe is connected with the bottom of the liquid storage tank, and the transparent observation pipe is provided with marking scales used for marking the height of the liquid level in the liquid storage tank. The flow rate of the liquid outlet pipe can be known through the mark scales on