I introduced the working principle of ZYB18.3A adjustable pressure residue oil pump: First, the structure of the impeller is divided into four categories: vane type (open type, closed type), flow path type, swirl type, (including Single flow channel and double flow channel) are four kinds of spiral centrifugal type. Detailed inquiry: http://
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The working principle is introduced separately: First, the structure of the impeller is divided into four categories: vane type (open type, closed type), flow path type, swirl type, (including single flow path and double flow path) spiral centrifugal type four. Kind. Impeller structure type
This type of impeller is not easy to transport medium containing large particles and long fibers. In terms of performance, the impeller of this type has low efficiency, and the highest efficiency is about 92% of that of a conventional closed impeller, and the head curve is relatively flat.
First, the flow channel impeller
The impeller is a bladeless impeller, and the impeller flow path is a curved flow path from the inlet to the outlet. Therefore, it is suitable for pumping a medium containing large particles and long fibers. Good resistance to blocking. In terms of performance, the efficiency of the impeller of this type is not much different from that of the ordinary closed impeller, but the head curve of the impeller pump is steeply lowered. The power curve is relatively stable and it is not easy to produce super power. However, the impeller performance of this type of impeller is not as good as that of the ordinary closed impeller, especially suitable for pumps with pressurized inlets.
Second, the swirling impeller
The pump of this type of impeller is partially or completely retracted from the flow passage of the pressure chamber. Therefore, the non-clogging performance is good, and the ability to pass the particles and the passage ability of the long fibers are strong. The particles move in the pressure chamber by the vortex generated by the rotation of the impeller, and the suspended particles themselves do not generate energy, but exchange energy with the liquid in the flow channel. During the flow process, the suspended particles or long fibers are not in contact with the blades, and the blades are less worn, and there is no case where the gaps are increased due to abrasion, and the problem of serious decline in efficiency is not caused in long-term operation. The pump of the type impeller is suitable for pumping media containing large particles and long fibers.
Third, closed impeller
This type of impeller has a higher normal efficiency. Moreover, the condition is relatively stable in long-term operation, and the axial force of the pump using the type impeller is small, and the auxiliary blades can be disposed on the front and rear covers. The secondary vanes on the front cover reduce vortex losses at the impeller inlet and wear of the particles against the seal ring. The impeller of the type has poor non-blocking property and is easy to be entangled, and is not suitable for pumping a sewage oil medium containing large particles (long fibers).
Four, spiral centrifugal impeller
The blades of this type of impeller are twisted helical blades that extend axially from the suction port on the tapered hub body. The pump of the impeller has the functions of a positive displacement pump and a centrifugal pump. When the suspended particles flow through the blade, they do not hit any part of the pump, so the damage is good. It is less destructive to the transported material. The pump with this type of impeller is suitable for pumping media containing large particles and long fibers, as well as high concentration media, due to the propulsion of the spiral and the high permeability of the suspended particles. It has obvious features in the case where the damage of the transport medium is strictly required.
Regardless of any series of ZYB-18.3A adjustable pressure residual oil pumps, only a different type of impeller and different types of oil pressure chambers are required according to the combination of conveying medium and installation, as long as the impeller and the oil pressure chamber can be optimally configured. This will ensure the performance of the pump. Detailed inquiry: http://://news.chinawj.com.cn Submission:
Hengshi Diamond Tools CO.,LTD , https://www.ryomaltools.com