Scrubber for cleaning of a gas

A scrubber for cleaning of a gas, comprising

• a casing extending along a longitudinal central axis and enclosing a scrubbing chamber, wherein the casing has a gas inlet for the gas to be cleaned, which extends into the scrubbing chamber, and a gas outlet for the gas that has been cleaned, which extends out from the scrubbing chamber, wherein the casing is configured to permit a gas flow of the gas to flow through the scrubbing chamber in a flow direction from the gas inlet to the gas outlet, the casing including an inner side facing inwardly in a direction toward the scrubbing chamber,
• a deflector device provided in the scrubbing chamber between the gas inlet and the gas outlet, with a passage being located between an outer periphery of the deflector device and an inner side of the casing, the deflector device having a downstream surface facing towards the gas outlet, the longitudinal central axis of the casing passing through the downstream surface of the deflector device,
• a spraying nozzle arranged between the gas outlet of the casing and the downstream surface of the deflector device and configured to spray a scrubbing liquid into the scrubbing chamber and the gas flow so that one part of scrubbing liquid sprayed by the spraying nozzle contacts the downstream surface of the deflector device,
• an inner shield that is different from the deflector device, the inner shield including an inner side and an oppositely located outer side, the inner shield extending between the casing and the deflector device and, at least partly, surrounding the deflector device, the outer side of the inner shield facing towards and being spaced from the inner side of the casing so that a gap exists between the outer side of the inner shield and the inner side of the casing, which gap has an inlet end and an outlet end to permit a downwards flow of another part of the scrubbing liquid sprayed by the spraying nozzle, different from the one part of the scrubbing liquid, through the gap, past the inner shield, along the casing, and
• the inlet end of the gap is open towards the gas outlet, and the outlet end of the gap is open towards the gas inlet, and wherein the flow of the scrubbing liquid is permitted from the inlet end to the outlet end in a direction opposite to the flow direction.