An experimental study on pump clogging

M. Isono, M. Nohmi, H. Uchida, M. Kawai, H. Kudo, T. Kawahara, Kazuyoshi Miyagawa, S. Saito

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    5 Citations (Scopus)

    Abstract

    For sewage pump that various foreign substance is flowed into, anti-clogging performance is a factor as important as pump efficiency in order to avoid clogging trouble by foreign substance. Many investigations about pump inner flow and pump efficiency estimation have been carried out conventionally in order to realize coexistence with anti-clogging performance and pump performance. And these results have been reflected in construction of the running water section design method. As a index of anti-clogging performance, "impeller passage diameter" which is diameter of spherical solid that can pass through the pump is used widely. And there are various type of the sewage pump which have large impeller passage diameter. However real cause of clog is not a solid, and it is fibrous material such as towel and clothes, vinyl and paper diaper. In most case these material accumulate in the pump, so that clog is occurred. In this study, for the purpose of quantification of anti-clogging performance against fibrous materials, the factor that affect to clogging of pump was investigated by pump model test using a string. The test is done based on Taguchi method. In this test, type of the pump model, diameter of the string, material of the string, length of the string and flow rate are selected for the factor, and the effect that they have on the clogging of the pump was investigated. As a result of this test, it was made clear that length of the string has a strong influence on the clogging of the pump. And from the result of this test, evaluation method of anti-clogging performance of the pump against fibrous material by using string was considered. According to the result of above test based on Taguchi method, it was assumed that quantification of anti-clogging performance against fibrous materials is possible by flowing plural strings into the pump and calculating the probability of passing. Plurality sewage pumps of different types were evaluated based on this assumption. And It was confirmed that it is possible to compare anti clogging performance of the pump against fibrous materials quantitatively. And the specification of the string was selected according to the result of the test based on Taguchi method. By this method, one of the evaluation method on anti-clogging performance against fibrous materials was established.

    Original languageEnglish
    Title of host publicationIOP Conference Series: Earth and Environmental Science
    PublisherInstitute of Physics Publishing
    Volume22
    DOIs
    Publication statusPublished - 2014
    Event27th IAHR Symposium on Hydraulic Machinery and Systems, IAHR 2014 - Montreal, Canada
    Duration: 2014 Sep 222014 Sep 26

    Other

    Other27th IAHR Symposium on Hydraulic Machinery and Systems, IAHR 2014
    CountryCanada
    CityMontreal
    Period14/9/2214/9/26

    Fingerprint

    pump
    experimental study
    sewage
    material
    design method
    model test
    coexistence
    test

    ASJC Scopus subject areas

    • Earth and Planetary Sciences(all)
    • Environmental Science(all)

    Cite this

    Isono, M., Nohmi, M., Uchida, H., Kawai, M., Kudo, H., Kawahara, T., ... Saito, S. (2014). An experimental study on pump clogging. In IOP Conference Series: Earth and Environmental Science (Vol. 22). [012009] Institute of Physics Publishing. https://doi.org/10.1088/1755-1315/22/1/012009

    An experimental study on pump clogging. / Isono, M.; Nohmi, M.; Uchida, H.; Kawai, M.; Kudo, H.; Kawahara, T.; Miyagawa, Kazuyoshi; Saito, S.

    IOP Conference Series: Earth and Environmental Science. Vol. 22 Institute of Physics Publishing, 2014. 012009.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Isono, M, Nohmi, M, Uchida, H, Kawai, M, Kudo, H, Kawahara, T, Miyagawa, K & Saito, S 2014, An experimental study on pump clogging. in IOP Conference Series: Earth and Environmental Science. vol. 22, 012009, Institute of Physics Publishing, 27th IAHR Symposium on Hydraulic Machinery and Systems, IAHR 2014, Montreal, Canada, 14/9/22. https://doi.org/10.1088/1755-1315/22/1/012009
    Isono M, Nohmi M, Uchida H, Kawai M, Kudo H, Kawahara T et al. An experimental study on pump clogging. In IOP Conference Series: Earth and Environmental Science. Vol. 22. Institute of Physics Publishing. 2014. 012009 https://doi.org/10.1088/1755-1315/22/1/012009
    Isono, M. ; Nohmi, M. ; Uchida, H. ; Kawai, M. ; Kudo, H. ; Kawahara, T. ; Miyagawa, Kazuyoshi ; Saito, S. / An experimental study on pump clogging. IOP Conference Series: Earth and Environmental Science. Vol. 22 Institute of Physics Publishing, 2014.
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