SU1286687A2 - Hydraulic ejector of soil intake device of suction dredger - Google Patents

Abstract

The invention relates to the field of gy; 1-romanization, is intended for underwater soil development and is an improvement. St. No. 1196456. The goal is to increase reliability by reducing water hammer. For this, the plates in the switch sweep the pump V are labeled in the form of disks / and 8 sec., Cutouts. The latter are located with the c: e center of the cut-outs of one disk relative to the cut-outs of the opposite disk. The offset is made around a circle with a radius equal to the diameter of the inlet of the nozzles 4 and 5, by an amount equal to the diameter of the inlet of the nozzles. A passage through the collector 3. water rotates lonas-Tii 6 and disks 7 and 8. The cuts in the disks alternately open the passage of water to either wash out 5 or to eject 4 nozzle m. The jets emerging from the nozzles become pulsating. This provides a more intrusive soil and the absorption of the resulting slurry. The presence of sectoral cuttings ensures the constancy of water consumption without a collector, the stability of the speed of rotation of the impeller and the frequency of pulsation, which eliminates the transmission of the pump to the water supply pump. 3 il. o (L 1CHE 00 05 05 00 vj No us.3

Description

This invention relates to hydromechanization, is intended for underwater excavation, and is an improvement of the device according to the authors. St. No. 1196456.

The purpose of the invention is to increase reliability by reducing water hammer.

FIG. 1 shows the device section; in fig. 2 is a view A of FIG. one; On FLR 3 - device, section, axonometric projection.

The device contains a suction pipe 1, a water supply pipe 2, a collector 3 with ejection, it 4 and 5 eroding nozzles, blades 6 and a flow switch, made in the form of a disk 7 installed on the side of the ejector nozzle, and a disk 8 installed on the eroding side nozzles The discs 7 and 8 are mounted with the possibility of axial movement on the shaft 9 and are pressed through the mixture. The passage through the collector, the water rotates the blades 6 and together with it the discs 7 and 8 of the flow switch, so that the notches 13 in the discs alternately open the passage of water to the eroding or to the ejecting nozzle. As a result, the water jets coming out of the nozzles become pulsating, which provides a more intensive erosion of the soil and the absorption of the resulting slurry. At the same time, thanks

10 for making the borders of cutouts in disks straight lines, aligning the cutouts in one disc with the cutout boundary B of another disc and the same diameter (d) of the nozzle inlets, the inlet of one nozzle at each moment opens just as much as the inlet of the other nozzle closes . This ensures the constancy of the flow of water through the collector, the stability of the speed of rotation of the paddle wheel and the hour) 5

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CTBOM springs 10 to seals 11. The shaft 9 20 is the pulsation of the jets, and also eliminates mounted for rotation in the sub-transmission of the pulsation to the water supply of the support supports 12. The flow switch disks are made with sector cuts 13 located with the offset of the cutouts of one disk regarding cutouts,. rr. p g, / pl zhngpti g Hydraulic ejector of a soil intake device of a dredger and on aut. St.

No. 1196456, characterized in that, for the purpose of

Claims (1)

Invention Formula the opposite disk circumferentially with a radius equal to the diameter (d) of the nozzle inlet, an amount equal to the diameter (d) of the nozzle inlet. The device works as follows. increase reliability by reducing water hammer; plates made from water supply pipe zones in the form of discs that have sectoral 2 enters the collector 3 and further, depending on the position of the flow switch, to the ejecting 4 or the eroding 5 nozzle. A jet coming out of the blur nozzle 5 blurs the array the soil, and the stream, coming out of the ejecting 35 equal to the diameter of the nozzle 4, contributes to the absorption of the nozzles. The cuts, evenly spaced with the offset of the cuts of one disk relative to the cuts of the opposite disk around the circumference with a radius equal to the diameter of the inlet of the nozzles, by an amount inlet 1286687 slurry. The passage through the collector, the water rotates the blades 6 and together with it the discs 7 and 8 of the flow switch, so that the notches 13 in the discs alternately open the passage of water to the eroding or to the ejecting nozzle. As a result, the water jets coming out of the nozzles become pulsating, which provides a more intensive erosion of the soil and the absorption of the resulting slurry. At the same time, thanks 0 making the boundaries of the cutouts in the discs are linear, aligning the cutout in one disc with the cutout boundary B of another disc and the same diameter (d) of the nozzle inlets, the inlet of one nozzle at each moment opens just as much as the inlet of the other nozzle closes . This ensures the constancy of the flow of water through the collector, the stability of the speed of rotation of the paddle wheel and the hour.  - 0 t pulsations of the jets, and also excludes the transfer of the pulsations to the water supply to the Hydraulic ejector on the subsea basis.  tots re G jet forces, as well as a surge on the water jet ejector Invention Formula increase reliability by reducing water hammer, the plates are made in the form of discs that have a sector equal to the diameter of the nozzles. The cuts, evenly spaced with the offset of the cuts of one disk relative to the cuts of the opposite disk around the circumference with a radius equal to the diameter of the inlet of the nozzles, by an amount inlet tpi / 8. f Type A J3 ig.2