SU1606620A1 - Earth intake device of suction dredger - Google Patents

Abstract

This invention relates to hydromechanization and is intended for underwater excavation. The goal is to increase the efficiency of the device by increasing the intensity of the destruction of the soil. The device includes a suction tip (HV) 1 in the form of a socket, fixed in its flow channel a fairing 2 in the upper 3 and lower 4 chambers, and a pulsator 5 with discharge pipes (TP) 6, 7. The ejector head 8 is connected with the upper chamber 3. the lower chamber 4 is connected to the central flushing attachment 9. The exhaust TP 6 is connected to the lower chamber 4. On the outer side of HV 1, an annular collector 11 is fixed. The collector 11 is connected to the exhaust TP 7. On the annular collector 11 peripheral flushing nozzles 10 are located along the contour of the inlet STI HV 1. Through the pulsator 5 to the outlet 6 and 7 TA water is fed into the lower chamber 4 and an annular collector 11. Due to the variable water flow is created overlap alternately ripple jets flowing through the nozzle 9, and through the nozzle 10. 5-yl.

Description

This invention relates to hydromechanization and is intended for underwater excavation.

The purpose of the invention is to increase the efficiency of the device by increasing the intensity of the destruction of the soil.

Figure 1 shows a soil-collecting device, a longitudinal section; figure 2 is a view of a- in figure 1; on fig.Z - the device at the time of water supply through the central nozzle; figure 4 - the moment of water supply through the central and peripheral nozzles; figure 5 - the moment of water supply through the peripheral nozzles.

The intake device includes a suction nozzle 1, made in the form of a bell, fixed in its flow channel fairing 2 with upper and lower chambers 3 and 4, pulsator 5 with discharge piping 6 and 7, ejecting nozzle 8, communicating with upper chamber 3 fairing 2 , central and peripheral flushing nozzles 9 and 10. The exhaust pipe 6 of the pulsator 5 is connected to the lower chamber 4 of the fairing 2.

The annular manifold 11 is fixed on the outer side of the suction tip 1 and is connected to the discharge pipe 7 of the pulsator 5.

Peripheral scouring nozzles

10 located on the ring collector

11 along the contour of the inlet of the suction tip 1. The central opening nozzle 9 is connected to the lower chamber 4 of the fairing 2.

The fairing 2 is made of two interconnected hollow cones with a partition 12. The suction tip 1 is connected to the slurry line 13. The upper chamber 3 is connected to a water supply pump for ejection by a pipe 14.

The pipeline 15 pulsator 5 is connected to a water supply pump for scouring the soil. The annular manifold 11 is connected to the suction tip 1 with a truncated cone 16.

Primer device operates as follows.

Pressure water from the pump through pipeline 14 is fed into the upper chamber 3 of the spinner 2, from where it is fed through the ejection nozzle 8 into the slurry line 13 and creates a vacuum in the flow part of the soil intake device, and water is sucked in with the ground. The water jet is used to transport the pulp through the slurry line to the designated place.

From the pump through pipeline 15 through the pulsator 5 through pipelines 6 and 7, water is supplied to the lower chamber 4 and to the annular manifold 11.

By alternately blocking the water flows exiting the pulsator 5, an alternate pulsation of jets flowing through the nozzle 9 and jets flowing through the nozzles 10 of the annular collector 11 is achieved.

During the development of the soil, three states of the pressure flow of the erosion alternate (Figures 3-5).

When pressurized water is supplied only

through chamber 4, a cut is created in the soil mass in the central part of the soil intake zone. At the periphery of the soil intake area, the soil is eroded by a suction stream of water.

When supplying pressurized water through the chamber 4 and through the annular manifold 11, water also leaks from the surrounding space. In this case, an effective flushing of the soil is ensured.

structures in the zone of the grouser.

When the pressure water is supplied to the erosion only through the annular collector 11, a cut is created in the soil mass around the periphery of the soil intake zone.

Claims (1)

The energy of the pressure jets and the energy of the flow of sucked water are summed up, which increases the efficiency of disturbance of the soil connectivity and its erosion. Invention Formula The suction dredger device, vk.g1yuchayuschaya suction tip, made in the form of a socket, fixed in its flow channel fairing with upper and lower chambers, pulsator with exhaust pipelines, one of which is connected to the lower chamber of the fairing, ejecting the nozzle in communication with the upper chamber of the fairing, the central and peripheral washing nozzles, due to the fact that, in order to increase the efficiency of the device by increasing the intensity of the destruction of the soil, it is provided with an annular collector mounted on the outer side of the suction nozzle and connected to another outlet of the pulsator, while the peripheral flushing nozzles are located on the annular manifold along the contour of the inlet the holes of the suction tip, and the central flushing head is connected to the lower chamber of the fairing. view ten FIG. 2 ten Fig.: 5