RU2650262C1 - Method of towing an underwater lighters caravan by an icebreaker - Google Patents

Abstract

FIELD: transportation.

SUBSTANCE: invention relates to the field of water transport, namely to the transportation of goods through ice-covered water areas. Method of towing an underwater lighters caravan by an icebreaker is proposed, characterized in that the tow line at the tip of the icebreaker-tower is fixed below the waterline in its stern keel section, and at the extremity of the tow line, a submarine unmanned tug that is passively or actively in operation against the icebreaker-tower is attached, providing a tension for alignment in the wake of the tow line and the possibility of a sharp decrease in speed, stop or reverse.

EFFECT: technical result consists in increased productivity of cargo transportation through ice-covered water areas and improving the maneuvering characteristics of a towing train.

1 cl, 1 dwg

Description

 1. The technical field to which the invention relates.

The invention relates to transport, and more particularly to the transport of goods through ice-covered water areas.

2. The level of technology

The well-known "Method of towing an underwater lighter by an icebreaker", patent No.CA 954388 from 09/10/1974, in which the tow line is fixed below the waterline of the icebreaker-towing vessel in its aft keel (http://www1.fips.ru/wps/portal/IPS_Ru# 1489182889131).

The disadvantage of this method is that in this way it is impossible to tow a caravan of several lighters with one icebreaker.

This method is the closest analogue to the invention.

3. Disclosure of invention

3.1. The invention as a technical solution is illustrated in FIG. one.

A rigid towing line 1 at the tip of the towing icebreaker 2 is fixed below the waterline in its aft keel portion to the hinge suspension 3, which is separately developed for each existing icebreaker and installed in the factory. And to towed underwater lighters 4, equipped with an automatic immersion and ascent system (not shown) and a simple non-adjustable tail unit 5, rigid tugs are attached to the standard unified articulated suspension 6.

Along the entire length of the towing line 1, consisting of several underwater lighters, a power electric cable (not shown) is passed, which serves as an information and control channel, as well as a power line for the towed underwater lighters by the icebreaker. At the end of the towing line 1, a submerged unmanned tug 7 with pulling screws 8 is also attached with a rigid tug attached to the icebreaker-tower, powered by a common power cable, operating in counter-movement.

The technical result of the invention is the ability to tow in all weather conditions an icebreaker 2 of a caravan of several underwater lighters 4 below the edge of the ice 9 with the possibility of a sharp decrease in speed, stop or reverse.

3.2. The method of towing an icebreaker caravan of underwater lighters solves the problem as follows.

Under normal towing conditions, the engine of the underwater unmanned tug 7 is turned off and its pulling screws 8 are freely scrolled in the flow of water along the course of movement, providing tension to the entire towing line 1, aligning the lighters 4 into the wake. When the speed of the icebreaker-towing vehicle decreases, it stops or moves backward, as well as in conditions of increased excitement in open water, the engine of the underwater unmanned tug 7 turns on automatically or forcibly and, working in opposition to the towbar 2, dampens the inertia of the forward movement of the lighters 4 or gives them rear the course, while continuing to provide tension to the entire towing line 1, aligning the lighters 4 into the wake.

4. Brief description of the drawing

In FIG. 1 is a side view of an icebreaker towing underwater lighters through ice-covered waters.

Showing:

- Rigid towing line 1.

- Icebreaker towing 2.

- Articulated suspension 3 of the icebreaker towing 2.

- Towed underwater lighters 4.

- Unregulated tail unit 5 towed underwater lighters 4.

- Unified articulated suspension 6 towed underwater lighters 4.

- Underwater unmanned tug 7

- Pulling screws 8 of an underwater unmanned tugboat 7

- The edge of the ice cover (water surface) 9.

Arrows without a designation indicate the direction of thrust of the icebreaker-towing vehicle 2 and the underwater unmanned tugboat 7.

5. The implementation of the invention

Underwater cargo lighters 4 with structurally integrated unified towing articulated hinges 6 can be made at any shipyard lightweight of thinner and cheaper metal to work at depths of 10-15 meters, using existing drawings of submarine hulls. Or to convert under them suitable hulls of submarines removed from the composition of the Navy.

Since the routes of the icebreakers are worked out, mastered and provided with the necessary navigation aids, the method for towing the caravan of underwater lighters by the icebreaker does not require any additional costs.

Due to the fact that the proposed method for towing a caravan of underwater lighters by an icebreaker involves the use of newly developed and manufactured mechanisms, experimental testing of the samples is required.

Claims (1)

A method of towing a caravan of underwater lighters by an icebreaker, characterized in that the towing line at its end is supplemented by an underwater unmanned tug that is passively or actively operating in opposition to the towing icebreaker, creating a constant tension for alignment of the towing line in the wake, allowing the caravan to be towed from several lighters slowing down, stopping or reversing.

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