News Digest:What is the loss of the sand pump while efficiency improved?, Dredging pump solutions,what is the loss of the sand pump while efficiency improved, China Do Pump provides dredging pump solutions, such as What is the loss of the sand pump while efficiency i
What is the loss of the sand pump while efficiency improved?
Dredging pump solutions,what is the loss of the sand pump while efficiency improved, China Do Pump provides dredging pump solutions, such as What is the loss of the sand pump while efficiency improved?, how to select a sand dredge pump, What are the Reasons of sand pump vibration and pump solutions, Tips of improving sand pump energy efficiency,
The sand pump is a kind of energy conversion machine. The energy conversion process is accompanied by the loss of energy. The efficiency is the measure of this conversion. How to improve the efficiency of the pump and reduce the energy loss? Just figure out the loss of energy in the pump. Let's take a look at what happens to the sand pump.
First, mechanical losses:
The sand pump is mainly the friction loss of the liquid and the outer surface of the front and rear cover of the impeller and the pump chamber (also called the disc loss). Disk losses account for a large proportion, even reaching 30% of the effective power. Tests have shown that the disk loss is proportional to the cube of the rotational speed and proportional to the fifth power of the outer diameter of the impeller. Therefore, the larger the outer diameter of the impeller, the greater the disc loss. Although the disc loss is proportional to the cube of the rotational speed, under the given head, the rotational speed increases, the outer diameter of the impeller decreases correspondingly, and the disc loss decreases in proportion to the fifth power. Therefore, with the increase of the rotational speed The disc loss does not increase, but decreases, which is one of the reasons for the development of high-speed pumps.
Second, the volume loss:
A part of the liquid of the impeller leaks back to the impeller inlet through the gap of the impeller seal ring and cannot be effectively utilized to form a loss. Therefore, the gap of the seal ring should be as small as possible, but due to processing and assembly, too small gap may form eccentric wear or jam. The national standard specifies the gaps of various types of pumps.
Third, hydraulic loss:
The fluid in the over-flow part (from the inlet to the outlet) of the pump is inevitably lost due to the change in speed and direction. These two parts are hydraulic losses. To reduce this loss, in addition to improving the smoothness of the overcurrent components, the hydraulic model is used.
China Do Pump is a manufacturer of sand pump. dredge pump, electric submersible sand pump and hydraulic submersible dredge pump with relative dredging equipment, such as on board dredge pump, ladder dredge pump, booster sand pump.
For more dredging pump solutions related to What is the loss of the sand pump while efficiency improved?, contact Sand Pump Manufacturer China Do Pump at info@dopumpgroup.com or call us at +8615031104888.
