The invention provides a light
thermal insulation material
water absorption coefficient testing device, which comprises a water absorption module, the water absorption module is communicated with a
drying module through a liquid conveying pipeline, the liquid conveying pipeline is provided with a
peristaltic pump, the
peristaltic pump is electrically connected with a liquid level controller, the liquid level controller is electrically connected with an optical
liquid level sensor, and the optical
liquid level sensor is electrically connected with the
drying module. The optical liquid level sensors are symmetrically mounted on the water absorption module; the
system further comprises a
surface water drop detection module, and the
surface water drop detection module is installed in the water absorption module. The water absorption module provided by the invention can be flexibly adjusted according to the original
water level in the test water tank, so that the to-be-tested block does not float upwards in the water absorption test process, and on the premise of ensuring that the to-be-tested block is in full contact with the water surface and does not deform,
water absorption coefficient experiments are simultaneously carried out on different types of light
thermal insulation materials with the same height; the device fills the blank that water in the
drying module cannot be reused, realizes
water circulation of the drying module and the water absorption module, guarantees the
measurement precision, and also improves the energy-saving effect of the
system.