YHG1800 Drehscheibe Belüfter

Technical specifications Model No: YHG1800-A, where YHG stands for oxidation ditch, 1800 is the disk diameter.A stands for RDA. Aerator's disk diameter: 1800mm Applicable rotating speed: 43-58 rpm; Economical Rotating Speed: 50RPM (The optimal rotaing speeding will be recommended according to differences inditch type, water depth and configurations.) The optimal embedded depth: 500-700mm; the economical embedded depth: 680mm Standard condition: RDA working water depth of 5.5m, embedded depth of 680mm, rotating speed of 50rpm. Standard oxygenation in clear water per disk: 3.63kg 02/h.ds Oxygenation driving power per disk (counted by shaft power): 2.85kg 02/kw.h Driving force per disk: 139.4m3/ds (under the consition of standard testing and average velocity of 0.3m/s in the oxidation ditch). Applicable working water depth ≤6.5m Horizontal spindle span: singe≤10m, double≤14m, multiple≤20m Interval between disks ≤ 4ds/m, 2-3ds/m is recommended.Special Performance 1. The RDA disks are made of lightweight GFRP with high intensity, which has greatoperating efficiency and long operational life. 2. Deep plug flow depth along with strong mixing capacity meansliquor can be mixed sufficiently by maintaining apreset velocity. 3. The single disk has a great capacity for oxygenation and drives a long distance for the waterflow. As a result the number of units can be reduced accordingly. 4. The effective water depth for oxidation ditch reaches 6.5 meters, which greatly reduces land occupation.Conventional Selection and Configuration Table The complete appliance performance of the YHG1800-A RDA under the conditions of 50rpm and 4m water depth without baffle plate, guide wall or oxygen pump ( disks interval: 2-3ds/m):Horizontal Spindle Span (m) Number of disks(ds) Oxygenation capacity at the embedded depth of 680mm(KgO2/h) Standard power of motor(KW) Availability of the motor power( KW)(no of disks vary accordingly)1.0 3 10.89 7.5 5.5,7.52.0 5 18.15 11 7.5,113.0 8 29.04 18.5 15,18.54.0 10 36.3 22 18.5,225.0 13 47.19 30 18.5,22,306.0 15 54.45 30 22,30,377.0 18 65.64 37 30,37,458.0 21 76.23 45 30,37,45,559.0 22 79.86 45 30,37,45,5510.0 25 90.75 55 37,45,55,75