SU448983A1 - Apparatus for preventing the formation of ice cover in the chamber of a dry dock and delaying floating broken ice - Google Patents

Description

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The invention relates to the field of ship repair: and concerns the prevention of the formation of ice cover in the dry dock chamber: And the retention of floating ice 6inxjro.

Devices are known for preventing the formation of ice cover in the dry-dock chamber and retaining the floating broken ice, containing a guide and stops, as well as a floating electric pump electrically connected with a limit switch and a remote control device.

The aim of the invention is to provide an automatic fixation of the working floor, a remote change in the direction of the jet action and an increase in the range of the electric pump.

For this purpose, the electric pump of the device proposed is rigidly connected to two rotatable angular levers arranged one above the other with rings at the ends, loosely mounted on a vertical guide bar mounted in the upper and lower brackets mounted in the wall of the dock, while the rear wall of the electric pump is fitted with two located-

one above the other and between the lever rollers abutting a rod reinforced parallel to the guide bar on the gate of the dock, and each pivoting lever consists of two sections fixed at a right angle in the horizontal plane, and the length of the section with the ring is equal to the distance from the guide rod to the nearest wall of the gate shutter dock.

FIG. 1 shows the proposed device, side view; in fig. 2 - the same, plan view

In the brackets 1, mounted in the wall of the dock, a vertical ti is fixed. a guide rod 2, on which the rings 3 of levers, having sections 4 and 5, are loosely mounted, fixed in the horizontal plane at a right angle to each other, with sections 5 rigidly connected to the floating pump 6, sections 4 - with rings 3, and the length of section 4 is equal to the distance from guide bar 2 to the nearest wall of gate niche 7 of the dock. On the back wall.

of the floating electropump 6, two rollers 8 are installed, abutting either into the tire 9 or into the gate recess wall. In the lower position of the electron. 6 .6 (shown in Fig. 1), rest on stops 10 having a limit switch (not shown).

The device works as follows. During the process of filling the dock with water, the working water is C. , 6 emerges and creates a surface flow directed inward of the docking chamber, thereby preventing the formation of ice cover on its water surface. At the same time, the force of the stop of the screw of the pump 6 by means of the rollers 8 transfers to the tire 9, and the pump is kept from horizontal movement by the pivoting levers, which in the process float the pump by sliding the rings 3 along the guide rod 2.

After filling the dock with water by remote switching, the direction of rotation of the pump propeller changes and under the influence of the force of the screw back pressure the pump slightly moves away from the bolt 7 to the inside of the dock, after which the bolt is opened.

A secondary remote switch to the propeller of the pump reports the initial working direction of rotation. Under the influence of the reactive force ejected by the jet pump and being deprived of support (rail 9), the pump automatically moves into the recess of the shutter 7, describing the arc around the guide rod 2 until the rollers 8 of the pump 6 are in the wall of the shutter NIIT1 ( dotted line).

At the same time, the pump 6, being placed in the niche of the gate chamber, does not move the vessels through the dock gate and is protected from damage when the vessel is piled up, and the flow created by it is directed towards the vessel entering the dock and prevents it from entering the dock of the floating vessel. ice

Before closing the shutter, the direction of rotation of the propeller screw of the pump 6 is remotely switched, and the device is driven by the force of the screw back stop, giving the pump 6 a rear

the turn is rotated “vehicle around the boom 2 and enters inside the dock.

After the shutter 7 is closed, the pump 6 - T is turned on again, and the I 5 direction of rotation of its screw again changes the initial HQ, and the device, turning the wheels 8 into the tire 9 until it stops, takes the initial working position. In this position, the working pump 10 6 descends along with the water level at. to a measure of disagreement. the docking chamber, again creates a surface flow, an obstruction, the formation of ice on its water surface until it lands; 15 coca 6 on stops 10, after which the pump av-

is automatically turned off by using i

/

a circuit breaker (not shown in the drawings) located in the stops 10.

Subject t inventions

A device for preventing the formation of ice in the chamber is dry. dock and delay floating ice floes

containing a guide and stops, as well as a floating electric pump, electrically; associated with a limit switch and an remote control device, characterized in that

automatically fixing the working position, remotely changing the direction of the jet action and increasing the range of the electropump, the latter is rigidly connected with two located one above another;

rotary angular levers with rings, at the ends, freely put on the vertical guide shanta, fixed in the upper and lower brackets, mounted in the wall of the dock, at. This rear wall of the electric pump is provided with two supporting rollers located one above the other and between the levers, abutting the tire, mounted parallel to the guide rod on the gate of the dock, and each turning lever: consists of two parts fixed at a right angle in the horizontal plane. the length of the section with the ring is equal to the distance from the guide bar to the near wall of the gate niche of the dock.

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