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| Experimental study on the influence of ″Groove-type″ drive plate on the hydraulic performance of jet pulse sprinkler |
| YAN Hailan1, WANG Xinkun1*, YAO Jicheng2, HUANG Jianxiang1,ZHAO Wenhe1, MENG Tianshu1, WANG Xi1 |
| 1. National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2. Xuzhou Water Conserucany Project Construction Management Center, Xuzhou, Jiangsu 221000, China |
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Abstract In order to improve the radial water volume distribution of the jet pulse sprinkler, based on the ″double hump″ type water volume distribution of the jet pulse sprinkler and the characteristics of the water baffle structure, innovative the ″groove-type″ drive plate structure, and the orthogonal test was carried out to obtain a new type of the jet pulse sprinkler. The results show that the primary and secondary order factors, which affect the optimal structure of jet pulse sprinkler irrigation on the uniformity,are that the inclination angle of the inner groove is 13°, the length of the driving plate is 16 mm, the groove width is 3 mm, the inclination angle of the side drive plate is 17°, and the width of the driving plate is 11 mm. When the inlet pressure is 0.15, 0.20, 0.25 and 0.30 MPa, the hydraulic performance comparison test of the ″groove-type″ the jet pulse sprinkler, original jet pulse sprinkler and rocker arm sprinkler was carried out. The test results show that under the inlet pressure of 0.15 MPa-0.30 MPa, the inlet flow rate of the new sprinkle is reduced by about 0.12 m3/h-0.17 m3/h compared with the inlet flow of the original sprinkler, and the inlet flow rate of the new sprinkler is about 0.07 m3/h-0.16 m3/h smaller than that of the rocker sprinkler. The uniformity of the sprinkler irrigation of the ″groove-type″ new sprinkler is 1.25%-7.43% higher than that of the original sprinkler, and 7.84%~14.42% higher than that of the rocker sprinkler. The comprehensive analysis shows that the structural design of the ″groove type″ drive plate is reasonable, and the uniformity of irrigation to the nozzle is significantly improved. This study can provide theoretical reference and data support for the subsequent research and development and engineering application of this type of domestic sprinkler.
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Received: 20 April 2022
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