Research Article
Numerical Investigation on Pressure Pulsation Characteristics and Radial Force of a Deep-Sea Electric Lifting Pump at Off-Design Conditions
Table 1
Main specifications and geometric parameters.
| | Description | Parameter | Value |
| | Rated flow rate | Qr (m3/h) | 420 | | Design flow rate | Qd (m3/h) | 800 | | Stage | S | 2 | | Total head | H (m) | 80 | | Single-stage head | Hs (m) | 40 | | Rotating speed | n (rpm) | 1450 | | Specific speed | ns | 157 | | Length of the two-stage electric lifting pump | L (mm) | 5739 | | Impeller | Inlet inlet diameter D1 (mm) | 85 | | Outlet inlet diameter D2 (mm) | 390 | | Inlet outlet diameter D3 (mm) | 240 | | Outlet outlet diameter D4 (mm) | 408 | | Inlet blade angle β1 | | | Outlet blade angle β2 | | | Outlet blade width b2 (mm) | 75 | | Blade number Z1 | 3 | | Diffuser | Inlet inlet diameter D5 (mm) | 390 | | Outlet inlet diameter D6 (mm) | 85 | | Inlet outlet diameter D7 (mm) | 550 | | Outlet outlet diameter D8 (mm) | 240 | | Inlet blade angle β3 | | | Outlet blade angle β4 | | | Vane number Z2 | 4 |
|
|
Several dimensions are shown in Figure 2. |
