GAS-LIQUID CONTACT DEVICE

摘要

PURPOSE:To reduce pressure loss while well keeping gas-liquid contact and to prevent weeping by setting the small holes formed to a perforated plate by punching so that the diameter of each hole on the rear surface side of the perforated plate is larger than that of the hole on the upper surface side thereof. CONSTITUTION:A liquid 3 flows on a perforated plate 2 from the upstream side and gas 4 flows in the perforated plate 4 from below. Small holes 6 are regularly provided to the perforated plate 2 and the lower part of each of the small holes 6 has an opening part 7 having a diameter larger than that of each of the holes 6. The gas 4 and the liquid 3 become a gas-liquid contact state on the perforated plate 2. When the gas 4 flows in the perforated plate 2, the gas 4 can smoothly flow in the perforated plate 2 by the action due to the arrangement of the opening parts 7 and pressure loss at the time of inflow is reduced. Since each of the small holes 6 of the perforated plate 2 has an area having a different diameter in the thickness direction of the perforated plate and increases in its wet length downwardly, weeping is unlikely to generate and an operation range can be widened.