Analysis of Fouling Pattern of Tunnel Drainage Pipe in Karst Areas

Table 2

Parameters of each group of the experimental model.

Experimental module	Equipment	Model	Quantity	Parameters
	Acrylic tank	Plexiglass	2	30 × 30 × 40
	Water pump	XQP-2500	1	80 W
	PVC pipe	Φ110	50	1 m
	PVC pipe	Φ50	1	1 m
	PVC elbow	Φ110	2	—
	PVC tee connector	Φ110	15	—
Measuring instruments	Electronic balance	YINGHENG	1	Precision 0.01 g
	pH meter	PH848	2	Ph range 0.0–14.0
	Oven	101–3AB	1	Temperature 60°C
	Infrared thermometer	SATA	1	Range −50 to 580°C
	Heating rod	PTC	1	Range 20–100°C