RU122361U1 - TOWING DEVICE FOR MOVING AND POSITIONING A NON-SELF-PROPELLED PLATFORM ON THE AIR PILLOW - Google Patents

Abstract

The utility model relates to shipbuilding, in particular, to devices for moving non-self-propelled hovercraft-platform platforms and solves the problem of ensuring unhindered movement of hovercraft platforms in coastal and tidal zones, extreme shallow water, as well as eliminating serious traumatic environmental impact of equipment .

To do this, in the proposed towing device for moving and positioning a non-self-propelled platform on an air cushion containing one or more branches, each of which consists of a towing link with an individual towing winch attached to it, mounted on the platform itself, an anchor at the opposite end of the towing link and attached for deployment of a towing device by a delivery vessel of anchors on an air cushion, according to a utility model, a view containing a whole supply of the length of the cable or towing link and installed on the anchor delivery vessel, while the anchor end of the towing link is made with the possibility of its alternate connection to the anchor or drum of the view. In addition, the anchor end of the towing connection is connected to the anchor through the foundation of the view and / or hull of the delivery ship.

The view installed on the delivery vessel of the anchors ensures that the towing link is laid out on the ground as the view is unwound with the translator moving forward. This excludes the dragging of the towing link over land or shallow water and its associated wear and tangle. A serious gain from the use of a view for deploying towing links is also realized in that this operation does not require the use of hovercraft-carriers with air cushions with specially oversized traction characteristics, which may require several units for platform movement operations. In addition to the noted advantages, the proposed technical solution completely eliminates the destruction of the soil layer and damage to the environment.

Thus, the design of the towing device with an additional view installed on each towing connection eliminates all the disadvantages inherent in the traditional use of the towing device and:

- provides reliable deployment of the towing device,

- eliminates the appearance of pegs, wear and tangle of ties,

- eliminates the need for vessels carrying haulage of air cushions with increased traction characteristics,

- reduces the wear of the elements of the towing device,

- minimizes damage to the environment.

The effectiveness of the proposed utility model is ensured by the use of a special view as a part of the design, which ensures reliable unfolding of the towing device links, eliminating the appearance of pegs and entanglement of the links, eliminating the need for air carrier-carrying anchor vessels with increased traction characteristics, and the wear of towing device elements and reduces environmental damage is minimized.

Description

The utility model relates to shipbuilding, in particular, to devices for moving non-self-propelled platform-hovercraft.

The indicated type of hovercraft platforms is intended for operation in coastal waters in the conditions of extreme shallow water, in the intertidal zone and in gentle land areas. The principle of moving and positioning such objects is to pull the platform itself in the right direction on the towing links using the towing winches installed on it. In relation to non-self-propelled floating structures such as ocean engineering platforms or dredgers, the towing device is one or more towing links and towing winches installed on the body of the object itself. Each of these connections serves to pull up the object on which they are installed in its direction. The other ends of the towing links are fixed on the anchors, which are delivered to the desired point by special vessels - carriers of anchors. Since the hovercraft platform in question is used either in extreme shallow water, in the tidal zone, or in gentle or swampy areas of the coastal strip, in most cases only amphibious hovercraft are suitable as carriers for anchors.

A towing device is known, which in the general case is a complex of connections (cables, chains) and mechanisms providing a vessel with the ability to tow other vessels or be towed (Alexandrov M.N., Zhukov Yu.D., Simonenko A.S. , Smirnov Yu.A. et al. Ship devices. L., “Shipbuilding”, 1982, p. 288). Such devices are widely used for towing ships and floating structures at sea, however, they are unsuitable for moving or positioning the platform by the pull-up method, since they do not have anchors to secure the ends of the towing links on the ground and do not provide for the towing winch on the towing object itself.

A known method and device for anchoring a marine vessel, in particular a vessel for oil and / or gas production (Patent of the Russian Federation No. 2224681 C1 IPC: B63B 21/50) is a prototype. The invention relates to the anchoring of a vessel, platform or other object of ocean engineering anchored in the open sea for underwater production of oil and / or gas from the seabed. The essence of the invention lies in the fact that each of the used cable or chain links is connected to an individual winch located on the vessel, and the opposite end is fixed to the anchor connected to the anchor delivery vessel. This design allows you to move and position the object over a given point by adjusting the length of each of the links towing or anchor winches.

A schematic diagram of a conventionally used towing device is shown in FIG. The towing device contains one or several branches, each of which consists of a towing link 1 with an individual towing winch 2 attached to it, mounted on the platform 3 itself, and an anchor 4 at the opposite end of the towing link and attached for deployment of the towing device by an anchoring vessel air cushion 5.

However, the use of such a device for moving and positioning the platform in extreme shallow water, and even more so in a swamp or rough terrain, faces serious difficulties. First of all, when anchors are delivered by a special hovercraft, the cable is dragged along the ground or ice hummocks. Resistance to such a drawing is very great. As a result of this, the delivery vessel is not enough of its own thrust to extend a portion of the cable of the required length. In addition, this process leads to wear, damage and tangling of the cable. An important factor in this method of delivering anchors is also the tearing of the sod layer, which is traumatic for the soil, which in the conditions of the far north can lead to irreversible environmental consequences.

The objective of the proposed utility model is to ensure trouble-free operation of anchor carriers, and, as a result, unhindered movement and positioning of platforms on an air cushion in the indicated difficult conditions, as well as at the same time eliminating the serious traumatic impact of the equipment on the environment.

To achieve the specified technical result, a viewer with a drum size is installed on each anchor delivery vessel, containing a supply of the cable of the corresponding towing connection and with a small power drive for winding it. At the same time, the end of the anchor connection itself can either be permanently attached to the view drum, or it can be disconnected from the drum. In order to facilitate the construction of the view, and the delivery vessel itself, it is possible to exclude the transfer of such large towing loads to its structure and for this purpose, when anchoring, disconnect the end of the tow connection with the view, attaching it directly to the imported anchor. In addition, the design of the view on the anchor delivery vessel must be as strong as the towing winch’s tow located on the platform and must be firmly connected to the imported anchor either directly or through the foundation of the view and / or the solid hull structure of the anchor delivery vessel.

The proposed utility model is a towing device for moving and positioning a non-self-propelled platform on an air cushion, containing one or more branches, each of which consists of a towing link with an individual towing winch attached to it, mounted on the platform itself, and an anchor at the opposite end of the towing link and given for deployment of the towing device by a delivery vessel of anchors on an air cushion, along which a view is included in the composition of the towing device, is installed Single in-vessel zavozchike anchors and accommodating the entire length of a cable connected thereto or towing coupling circuit, wherein the anchor end of the towing connection is configured to alternate attachment to the anchor or the reel drum. In addition, the anchor end of the towing connection is connected to the anchor through the foundation of the view and / or hull of the delivery ship.

The view installed on the delivery vessel of the anchors ensures that the towing link is laid out on the ground as the view is unwound with the translator moving forward. This excludes the dragging of the towing link over land or shallow water and its associated wear and tangle. A serious gain from the use of a view for deploying towing links is also realized in that this operation does not require the use of hovercraft-carriers with air cushions with specially oversized traction characteristics, which may require several units for platform movement operations. In addition to the noted advantages, the proposed technical solution eliminates the destruction of the soil layer and damage to the environment.

Thus, the design of the towing device with an additional view installed on each towing connection eliminates all the disadvantages inherent in the traditional design and method of using the towing device and:

- provides reliable deployment of the towing device,

- eliminates the appearance of pegs, wear and tangle of ties,

- eliminates the need for vessels carrying haulage of air cushions with increased traction characteristics,

- reduces the wear of the elements of the towing device,

- minimizes damage to the environment.

The essence of the proposed utility model is illustrated in the figure, which shows a schematic diagram of a towing device (figure 2).

According to the proposed utility model, the towing device 1 contains one or several branches, each of which consists of a towing link 2 with an individual towing winch 3 connected to it, mounted on the platform 4 itself, and an anchor 5 at the opposite end of the towing link with the towing device attached for deployment hovercraft 6. The viewer 7 is mounted on the towing device 1 and is mounted on the hitching vessel 6 connected to the towing link 2. The view is designed to hold w length towing cable or chain connection 2. The anchor end of the towing connection 2 configured to alternate connection to the armature 5 and the reel drum 7 by means of dismountable connecting node.

The anchor end of the towing link 2 for transmitting traction can be connected with the anchor 5 through the foundation of the view 7. A positive feature of this design is that when rationally designed, the weight of the delivery vessel 6 itself can be added to the weight of the anchor 5, thereby significantly increasing its holding force, or the delivery ship 6 itself, when dropping its air cushion, can play the role of an anchor due to its weight and special configuration.

The functioning of the proposed towing device is as follows.

In the initial position, the platform on the air cushion 4 lies on the ground with the hull or stands on towers, the towing device 1 is in an unfolded state, the towing link 2 is wound on the drum of the towing (traction) winch 3, and the hovercraft 6 is prepared for deployment towing link 2 with anchor 5 on board. The anchor end of the towing link 2 is fixed on the drum of the view 7 with a collapsible connecting unit and, using its own drive of the view 7, rewind the entire supply of the cable or chain of the towing link 2 to the drum of the view 7 until it stops. With the beginning of the movement of the delivery vessel of anchors 6 for setting the anchor 5, the towing link 2 is freely wound from the drum of the bag 7 and laid out on the ground without dragging in the direction of the upcoming pulling of the platform using the winch 3. Upon reaching the end point of movement, the end of the tow link 2 is disconnected from the drum of the bag 7 and connect to the anchor 5 and then install the anchor 5 in the working position. After the completion of the deployment period of the towing device, platform 2 rises on an air cushion and after turning on the power drive of the winch 3, platform 4 starts moving until the towing link 2 is completely wrapped around the drum of the winch 3. After stopping the pull-up, the lifting complex of the platform is stopped, the air cushion is etched and platform 4 is set down on the ground or stands on the supports. After that, the anchor end of the towing link 2 is again secured to the drum of the view 7 with a collapsible connecting unit and, using its own drive of the view 7, rewind the entire supply of the cable or chain of the towing link 2 to the drum of the view 7 until it stops. Next, the cycle of movement of the platform is repeated.

When applying the design according to the second embodiment of the towing device, the carrier of the anchors on the air cushion 6 unfolds the towing device 1 as a whole and immediately lowers the anchor 5, which is constantly connected to the structure of the view 7, if the delivery vessel itself is designed in such a way that of its weight and configuration to perform the function of an anchor, then it drops an air cushion and is fixed on the ground at a given point.

The effectiveness of the proposed utility model is ensured by the use of a special view as a part of the design, which ensures reliable unfolding of the towing device links, eliminating the appearance of pegs and entanglement of the links, eliminating the need for air carrier-carrying anchor vessels with increased traction characteristics, and the wear of towing device elements and reduces damage to the environment is minimized, which distinguishes the proposed utility model from the prototype.

Claims (2)

1. A towing device for moving and positioning a non-self-propelled platform on an air cushion, comprising at least one branch, which consists of a towing link with an attached individual towing winch mounted on the platform itself and an anchor at the opposite end of the towing link, with given for deployment of the towing device by an air-cushion anchor delivery vessel, characterized in that the structure of the towing device includes a view mounted on the anchor delivery vessel and accommodate the entire length of the towing link connected to it, and the anchor end of the towing link is configured to alternately attach to the anchor or drum of the view. 2. The towing device according to claim 1, characterized in that the anchor end of the towing connection is connected to the anchor through the foundation of the view and / or hull of the delivery ship.