Annular distributor having guide vane to improve flow rate distribution

An annular distributor comprising:

• an annular slit layer that is mounted on an inner circumferential surface of the annular distributor and has at least one slit discharging or introducing a fluid;
• at least one opening that is formed on an outer circumferential surface of the annular distributor and is connected with any one of a fluid supply duct and a fluid discharge duct;
• and
• at least one guide vane selected from three types of guide vanes that are installed in the annular distributor, and splits a flow rate of the fluid supplied from the duct or collects a flow rate of the fluid discharged to the duct,
• wherein, among the three types of guide vanes,
• the first type guide vane is two or more in number, is installed in a longitudinal direction, and includes (i) a first vertical deflection plate that is spaced apart from the slit layer and is located between the slit layer and the opening and (ii) a second vertical deflection plate that is not coaxial with the first vertical deflection plate and is connected with both an inner end of the first vertical deflection plate and the slit layer;
• the second type guide vane is installed in a longitudinal direction along an extension line of the diameter of a circle formed by the inner circumferential surface of the annular distributor, and is connected from one point between the slit layer and the opening to the slit layer;
• and
• the third type guide vane is installed in a transverse direction along the inside of the annular distributor, and is connected with the slit layer and the outer circumferential surface of the annular distributor,
• wherein at least one of the first vertical deflection plate of the first type guide vane, the second type guide vane, and the third type guide vane is extended out of the opening.