Turbo-Blowers (as used by NEUERO)
- the efficiency of thoroughly designed turbo-blowers is higher than that of roots-blowers;
- on account of the characteristic curve, the velocity of the conveying air can be varied;
- in the partial-load range, the velocity of the conveying air remains rather constant, i.e. wear on the conveyor pipe and the conveying material is lower;
- the conveying air flow is continuous. The high-frequency noises can be dampened with little expenditure;
- the running wheel is resistant to foreign matter, i.e. complicated filter equipment can be avoided;
- the sensitivity to higher air temperature is low.
- a turbo-blower starts more slowly than a roots-blower;
- the energy demand in the partial-load range is higher than that of the roots-blower.
- a roots-blower quickly attains the full number of revolutions;
- the power demand in the partial-load range is lower.
- in the range of partial load, the conveying speed is higher, i.e. wear on the conveyor pipe and breakage of the conveying material will be greater;
- a conveying speed once chosen can only be altered with considerable expenditure;
- due to the low-frequency noises (pulsating conveying air flow), expensive noise dampening equipment will be necessary;
- in order not to exceed the operating pressures, a control device must be installed;
- on account of the narrow piston clearance, the roots-blower is sensitive to to foreign matter, i.e., filter cleaning of the conveying air is required;
- after a longer period of use, the piston clearance becomes larger and leads to capacity losses.
The advantageous use of turbo-blowers in pneumatic ship unloading plants can be seen from this list of advantages and disadvantages; therefore, NEUERO has always chosen this way and used the single stage radial high-capacity blower as major components of its conveying installations.