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Development and performance evaluation of novel jet self-cleaning for screen filters in drip irrigation systems: More efficient, water-saving, and cleaner

Author

Listed:
  • Qin, Zhouyang
  • Liu, Ningning
  • Zhang, Jinzhu
  • Wang, Zhenhua
  • Liang, Wenyao
  • Li, Miao
  • Zhang, Jihong

Abstract

Challenges persist in the effectiveness of self-cleaning screen filters, encompassing issues such as facile clogging, prolonged cleaning duration, and filter deformation, significantly impeding their functionality within drip irrigation systems. A comprehensive investigation into cleaning methodologies and filter structures becomes imperative to address these concerns. This study integrated jet-cleaning technology, a widely adopted industrial practice, into the self-cleaning regimen of filters, and jet parameters (nozzle diameter, incident pressure, and nozzle diffusion angle) were investigated for jet cleaning. Based on optimal parameters (Incident pressure of 0.3 Mpa, nozzle diameter of 3 mm, and nozzle diffusion angle of 80°), a novel jet self-cleaning screen filter (JSSF) was designed, and its hydraulic performance and self-cleaning performance were scrutinized through physical experiments and theoretical analyses. Remarkably, the influence of cleaning pressure during self-cleaning surpassed that of inlet sediment content. With increasing cleaning pressure, sewage discharge duration decreased, accompanied by enhanced discharge cleanliness. Meanwhile, the formula for the sewage discharge time and cleanliness was derived and the calculated results matched the experimental results. This innovative filter exhibited a discharge water consumption at least 90 % lower than conventional market-available screen filters. The main findings furnished valuable insights, fostering the application and evolution of water jet cleaning technology in screen filters for drip irrigation systems.

Suggested Citation

  • Qin, Zhouyang & Liu, Ningning & Zhang, Jinzhu & Wang, Zhenhua & Liang, Wenyao & Li, Miao & Zhang, Jihong, 2025. "Development and performance evaluation of novel jet self-cleaning for screen filters in drip irrigation systems: More efficient, water-saving, and cleaner," Agricultural Water Management, Elsevier, vol. 312(C).
    • Handle: RePEc:eee:agiwat:v:312:y:2025:i:c:s0378377425001386
    DOI: 10.1016/j.agwat.2025.109424
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