Double-layer sealing and automatic dewatering sealing device for underwater rotating machinery

Huaming Yu (Inventor), Weichao Shi (Inventor), Junwei Zhou (Inventor), Lei Mei (Inventor), Dazheng Wang (Inventor)

Research output: Patent

Abstract

The invention relates to a double-layer sealing and automatic dewatering sealing device for underwater rotating machinery, which belongs to the field of the underwater rotating machinery. The double-layer sealing and automatic dewatering sealing device is provided with a closed shell and is characterized in that an inner cavity of the closed shell is divided into a unit cabin and a water storage cabin by a partition plate, a unit is installed in the unit cabin, one end of a main shaft of the unit passes through shaft holes on the ends of the partition plate and the shell, a first sealing ring and a second sealing ring are respectively installed in the shaft holes on the ends of the partition plate and the shell, a water pump is installed in the inner cavity of the shell, a water pumping port of the water pump is communicated with the bottom of the water storage cabin, a water outlet of the water pump is communicated with a water discharging hole on the shell, a check valve is installed in the water discharging hole, and a water level induction switch is installed in the water storage cabin and controls the start of a water pump motor. In the invention, for the machinery which works under the water for a long time and has higher maintenance expense, such as a tidal flow turbine generator, a rotary sealing piece can still keep a favorable sealing effect after working for a long time.
Original languageEnglish
Patent numberCN102588594A
Priority date29/02/12
Publication statusPublished - 29 Jul 2015

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Keywords

  • double layer sealing
  • dewatering
  • underwater rotating machinery

Cite this

Yu, H., Shi, W., Zhou, J., Mei, L., & Wang, D. (2015). Double-layer sealing and automatic dewatering sealing device for underwater rotating machinery. (Patent No. CN102588594A). University of Strathclyde.