Water-jet propulsion pump device with telescopic water inlet flow channel and implementation method thereof

A technology of water inlet channel and water jet propulsion

CN111846178AActive Publication Date: 2020-10-30YANGZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-10-30

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Abstract

The invention discloses a water-jet propulsion pump device with a telescopic water inlet flow channel and an implementation method thereof, and belongs to the field of ship engineering. The device comprises a water-jet propulsion pump and a water inlet flow channel. The water inlet flow channel comprises a near-nozzle water inlet flow channel and a near-water inlet flow channel, the near-nozzle water inlet flow channel is located at a water inlet end of the water-jet propulsion pump, and the near-water inlet flow channel is movably connected with a ship plate; the device is provided with a telescopic water passing part, one end of the telescopic water passing part is fixedly connected with a near-nozzle water inlet flow channel, and the other end of the telescopic water passing part is connected with the near-water inlet flow channel; and the telescopic water passing part moves upwards or downwards in the near-water inlet flow channel so that the water inlet flow channel is telescopic,a draft T' reaches a proper range, the stable operation of the water-jet propulsion device is realized, and the water-jet propulsion pump device and the method have wide market and application prospects in the design and operation of propulsion ships and high-speed boats.
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Description

technical field

[0001] The invention relates to a water jet propulsion pump device with a retractable water inlet channel and a realization method thereof, belonging to the field of ship engineering. Background technique

[0002] The water inlet channel is one of the important components of the water jet propulsion pump device, and the optimization of its performance has always been the focus of research. For a ship loaded with cargo or personnel, due to the change of load, its draft is different, so the draft T of the suction port of the water jet propulsion pump device is not in the ideal design range, resulting in unstable operation of the water jet propulsion pump device. The traditional water inlet flow channel is often of fixed length, which cannot effectively adjust the draft. This patent invents a new type of retractable water inlet flow channel to solve the problem of safe and reliable operation of the water jet propulsion pump device that plagues the shallow draft....

Examples

Embodiment Construction

[0021] A water jet propulsion pump device with a retractable water inlet channel, which can change the length of the water inlet channel, thereby changing the draft of the water jet propulsion pump device, so that it satisfies T' = (0.7~1.0) The requirements are conducive to the stable operation of the water jet propulsion pump device.

[0022] Specifically, it consists of five parts, namely the original water inlet channel (two parts before and after: the water inlet channel 9 near the spout, the water inlet channel 10 near the water inlet), the telescopic water passing part 1, the adjustment device 2, the guide rail 4 and Hydraulic device 5. The telescopic water passing part embedded in the present invention connects the front and rear parts of the original water inlet flow channel, the telescopic water passing part 1 is fixed with the water inlet flow channel near the spout, and is provided with a sealing device, and the telescopic water passing part is connected with the ...