Liquid level control system of first drainage receiver used for material receiving of first drainage receiver

The utility model relates to a liquid level control system of a first drainage receiver used for material receiving of the first drainage receiver. The system is characterized by comprising a first drainage receiver (1), a heat medium feeding pot (2) and a second drainage receiver (3). The material outlet of the first drainage receiver (1) is connected with a material outlet pipe (4). The end of the material outlet pipe (4) is in parallel connection with a material receiving pipe (5), a heat medium feeding pot material feeding pipe (6) and a second drainage receiver material feeding pipe (7). The material receiving pipe (5) is provided with a material receiving valve (5.1). The heat medium feeding pot material feeding pipe (6) is provided with a flow transmitter (6.1). A control circuit (8) is disposed between the flow transmitter (6.1) and the material receiving valve (5.1). The control circuit (8) is provided with a liquid level controller (8.1). The system is advantaged by being high in liquid level contro