SU1296885A1 - Buoyant bench for testing water-jet propeller of vessel - Google Patents

Abstract

This invention relates to shipbuilding and ship repair testing equipment. The purpose of the invention is to expand the functional capabilities of the stand by adjusting in a wide range and extinguishing the ejected water flow, as well as reducing the efforts perceived by the mooring means of the stand during - driving test. The floating bench contains a waterproof pontoon case 1 with a water intake 2 and a water canal of 3 channels, as well as rooms for the test jet propulsion 4 and its drive 5. The water canal 3 is divided by a folding surface deflector 6 into two diverging in opposite directions of the conduit 7, 8 equal to The sections on which there are folding surface deflectors 9 dividing them into two equal sections of the drainage pipes 10, 11. The drainage pipes 10, P are located on buoyancy along the side of the pontoon body 1, are equipped with by means of dampers 12 and quenchers 13, 14 of water flow at the ends of these pipes, which are located below the waterline of the pontoon in opposite directions. The flow rate of the water flow emitted from the stand is controlled by valves 12, and by opening the deflectors 6 or 9, a full or partial load shedding is carried out. 2 Il. ifi 10 13 J2

Description

This invention relates to shipbuilding and ship repair testing equipment, in particular, to a floating test bench for a ship jet propulsion system.

The purpose of the invention is to expand the functional capabilities of the stand, to quench the emitted water flow, as well as to reduce the efforts perceived by the mooring means of the stand during the test of the propeller.

Figure 1 schematically shows a floating stand, a general view, a longitudinal section; FIG. 2 is a section A-A in FIG. 1,

The floating stand contains a waterproof pontoon case I with a water intake 2 and a water canal 3 channels, as well as rooms for the test jet propulsion 4 and its drive engine 5. The central portion of the water canal 3 is divided by a folding surface deflector 6 into two diverging channels 7 in opposite directions and 8 (middle section) of equal section with a folding surface deflector 9 at their ends, which in turn separates

Floating stand for testing the jet propulsion vessel, containing a waterproof pontoon case, a water conduit with water intake and water pressure channels, as well as a drive engine, characterized in that, in order to expand the functionality of the stand, to quench the emitted water flow, and also from the conduits 7 and 8 into two equal to 30 efforts to reduce the perceived flow cross section; dewatering pipes 10 and 11 (end section); Drainage pipes 10 and 11 are located along the bead of the body 1 of the pontoon, equipped with regulating dampers 12 and dampers 13 and 14 of the water flow at the exit parts of these pipes, placed below the waterline of the pontoon in opposite directions, Foldable surface deflectors 6 and 9, as well as the flaps 12 are equipped with their rotational drives (not shown). and II are fitted with waterproof buoyancy 15.

When the drive 5 is in operation, the jet propulsion unit 4 takes water from the intake channel 2 and delivers it under pressure to the water-supply channel 3, where, being divided by a folding flood deflector 6 into two smaller and diverging in opposite directions of water flow, it means the test time of the propeller, the water-pressure channel is complete with the central, middle and terminal sections, as well as with the central folding surface deflector branching the central section into two mentioned equal sections Independent user portion, perpendicular to the central

40 in turn and oppositely directed to each other, and with two lateral hinged surface deflectors, in turn, branching each of the middle sections into two equal

The 45 sections of the said end sections, which are perpendicular to the middle section and opposite to each other, all the output parts of the end sections are located below the current stand waterline and are equipped with regulating dampers and water flow dampers.

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It is located in waterways 7 and 8. Here, the outflows; by means of bottom surface deflectors 9, these streams, in turn, are divided into two equal parts and fed to the drainage pipes 10 and 11, from where they are released into the water below the waterline in two opposite directions. The flow rate of the water flow emitted from the stand is controlled by the shutters 12 when it is thrown completely into the water, changing the flow area at the ends of the drainage pipes 10 and 11, and when throwing the flow into the atmosphere - opening the deflectors 9 or the deflector 6 when the jet propulsion test held at full load shedding.

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Claims (1)

Invention Formula Floating stand for testing the jet propulsion vessel, containing a waterproof pontoon case, a conduit with water intake and water pressure channels, as well as a drive motor, characterized in that, with the aim of expanding the functionality of the stand, quenching the ejected water flow, and reducing the perceived 30 reduce the perceived effort During the testing of the propulsion device, the mooring means of the stand were completed with a central, middle and terminal sections, as well as with a central folding surface deflector, which branched the central section into two equal equal sections of the middle section, perpendicular to the central 40 in turn and oppositely directed to each other, and with two lateral hinged surface deflectors, in turn, branching each of the middle sections into two equal The 45 sections of the said end sections, which are perpendicular to the middle section and opposite to each other, all the output parts of the end sections are located below the current stand waterline and are equipped with regulating dampers and water flow dampers.