| Autor |
|
|
|
| Working principle of three screw pump |
|
|
| 2278 Beiträge - Forenlegende
|
|
|
{Because of the intermeshing of the screw and the close cooperation between the screw and the inner wall of the liner, the suction and discharge ports of the pump will be separated into one or more sealing spaces. As the screw rotates and engages, these sealing spaces are formed continuously at the suction end of the pump. The liquid in the suction chamber is sealed in it, and the liquid in the suction chamber is continuously pushed from the suction chamber along the screw axis to the discharge end. The liquid enclosed in each space is continuously discharged, just like a nut pushing forward when the screw rotates. The number of screw rings is regarded as liquid. When the screw rotates, the screw thread is equivalent to the liquid in the screw pump. This is the basic working principle of the screw pump.Hot China Products Low Price Refrigeration Vacuum Pump
The sealing surface between the screw and the shell is a spatial surface. There are non-sealed areas such as AB or de on this surface, and many triangular notches ABC and def are formed with the groove part of the screw. These triangular notches form a liquid passage, connecting the active screw groove A with the grooves B and C on the driven screw. The grooves B and C are connected to their back along their spiral, and are connected with the groove D and E on the back respectively. Because there are triangular notches a'b'c', which are similar to the front, on the sealing surface of groove D, E and groove F (which belongs to the other spiral), D, F and E will also be connected. In this way, the groove ABCDEA also forms a "infinite" sealing space (if single thread is used, then the groove will screw along the axis, through the suction and exhaust ports, and can not form a seal). It is not difficult to imagine that on such a screw, there will be many independent uu sealed spaces, each of which occupies an axial length exactly equal to the guide t of the rod. Therefore, in order to make the screw suction and oil outlet separated, the length of the screw thread section should be at least greater than one lead.Titanium Melting Furnace For Steel Plant And Found...y Industry
|
| Beitrag vom 12.11.2018 - 07:03 |
|
Usermap
Seitenanfang: