The Influence of Blade Angle on the Performance of Plastic Centrifugal Pump

Table 4

External characteristic parameter under different model working conditions.

Number	Outlet angle β2/°	Inlet angle β1/°	Wrap angle φ/°	Hydraulic efficiency ηh/ (%)	Head H/m	Shaft power P/kW
1	25	7	120.1309	78.2025	34.9143	3.3992
2		9	115.4908	77.319	34.2364	3.37129
3		11	107.3851	75.8128	33.2508	3.33928
4		13	91.7944	73.1623	32.3427	3.36576
5	30	7	122.3022	78.6326	35.5208	3.43933
6		9	117.5788	77.5703	35.1021	3.44634
7		11	109.4721	74.6859	33.1619	3.38061
8		13	93.8815	73.2596	32.4081	3.36808
9		14	81.2838	71.9816	32.8627	3.47597
10	35	7	123.7650	79.7254	35.5934	3.3913
11		9	119.0406	77.6532	35.6254	3.49296
12		11	110.9349	76.7474	35.315	3.50339
13		13	95.3443	72.6208	33.1782	3.47845
14		14	82.7465	71.8342	33.1818	3.51692
15		15	67.4184	73.1426	34.5774	3.59928
16	40	7	124.8358	76.545	36.0313	3.5839
17		9	120.1115	75.8269	35.4806	3.56256
18		11	112.0058	74.915	35.1326	3.57056
19		13	96.4151	73.1767	34.1683	3.55503
20		14	83.8174	71.1099	32.6869	3.45837
21		15	68.4893	72.2672	35.2507	3.71381