RU2626452C1 - Flexible extended trailed antenna setup and selection device - Google Patents

Abstract

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to the creation of flexible extended trailed antennas (FETA) setup and selection devices (SSD) on the submarines and surface ships. The proposed SSD FETA contains the hoist, on the drum of which the part of FETA is wound, the cable laying device, the tubular storage for placing of another FETA part and its terminal stabiliser, as well as the device for creating the excess hydraulic pressure. The hoist and cable laying device are enclosed in the sealed casing, made in the form of the detachable shell made of waterproof material, stretched over the openwork frame and hermetically connected to the tubular storage initial section. The device for creating the excess hydraulic pressure is hermetically connected to the shell from waterproof material.

EFFECT: proposed design of setup and selection devices provides the safe setup and selection of flexible extended trailed antennas, the access for the maintenance and repair of flexible extended trailed antennas setup and selection devices and allows you to allocate the setup and selection devices mechanisms most effectively.

2 cl, 1 dwg

Description

The invention relates to hydroacoustic technology and relates to the creation of devices for setting and retrieving (UPV) flexible extended towed antennas (GPAA) in submarines and surface ships.

GPBA is intended for receiving hydroacoustic information, its preliminary processing and transmission to on-board equipment to form a fan of directivity and secondary processing.

Extended hydroacoustic antennas towed by a vessel are known, which are series-connected in a single cable towing system and GPBA, containing acoustic sound pressure detectors and electronic pre-processing and sealing devices located inside a sealed hose shell filled with a liquid or pseudo-fluid (gel) filler ( RF patents No. 2136019 dated 08/27/1999, No. 2229734 dated 05/27/2004). GPAA have a length significantly exceeding the linear dimensions of the carrier ship, and with the help of a tug cable they are separated from the ship by a distance sufficient to reduce the level of their own ship interference. The length of such antennas can range from several tens to several hundred meters.

The necessary manipulations associated with the release and cleaning of GPAA are carried out using setting and selection devices (UPV) [Yu.A. Koryakin, S.A. Smirnov, G.V. Yakovlev. Ship sonar equipment. St. Petersburg, Nauka, 2004, p. 62]. Such devices are intended for storage, etching at sea for their intended purpose, towing and reeling of the GPBA after the end of work. As a rule, the UPV includes a winch, on the drum of which they are wound in various cases, depending on the conditions for placing the winch on the ship and how to set up the GPBA, either a cable tug and GPBA completely, or only a cable tug. In the latter case, the antenna is placed in a tubular storage (hangar) for GPBA, which is a pipe in the form of an extended cylindrical shell, laid from the winch along the ship's hull to its aft end. Through the tubular storage GPBA is put into the stream. To stabilize the movement of the antenna in the stream, it is equipped with an end stabilizer, the casing of which is made in the form of a hollow body of revolution, consisting of thin-walled metal parts welded together in the form of a hemisphere, cylinder and cone. In both cases, the end body also performs the role of “tube” of the tubular storage. In a number of design solutions, the winch and tubular storage form a single sealing circuit, in a number of others - the winch and tubular storage are leaky. [Yu.A. Koryakin, S.A. Smirnov, G.V. Yakovlev. Ship sonar equipment. St. Petersburg, Nauka, 2004, p. 62].

A hydraulic method is used for GPBA etching, in which the pressure is excessive in relation to the external hydrostatic pressure in the sealing circuit of the winch - the tubular storage or only in the tubular storage. This pressure pushes the end body out of the hangar, and then a pulling force is created on the antenna, which, like the flow, is directed towards the exit from the hangar.

The way to create excess pressure at which the antenna on the winch is completely placed in a sealed hangar is the most effective, however, there are problems with the placement of such devices related to the rigid structure of sealed modules on ship devices, problems with access to mechanisms and maintenance and installation of GPAA on the carrier.

The staging-sampling device according to the patent of the Russian Federation No. 2171197 from 01.24.2000. is the closest analogue in technical solution to the proposed device.

The prototype device includes:

- a winch with a cable tug wound on it and a cable layer,

- tubular storage, which hosts the GPA and the end body,

- a device for sealing a tubular storage in the form of a concave hemisphere, mating with the spherical tip of the end body,

- a device for creating excess hydraulic pressure in the internal volume of the tubular storage.

When the pump and the winch are turned on for staging in the tubular storage, due to the cable gland seal, excessive pressure is created that pushes the end stabilizer from the hangar into the stream, and under the influence of the pressure drop in the hangar and the drag resistance of the GPAA stabilizer is etched into the stream.

The known device is effective only when the GPBA is completely in the tubular storage, and only its cable-tow is located on the winch. A significant difference in the diameters of the GPAA (60-80 mm) and the cable tug (15-20 mm) and the significantly greater radial stiffness of the cable allows you to create an effective stuffing box seal at the inlet of the tubular storage [RU 2171197 C1, 01/24/2000] and provide when the pump is turned on traction necessary for setting the antenna.

With large apertures of GPBA, when it cannot be completely placed in the tubular storage, most of the GPBA is wound on the winch drum, and a smaller one is in the tubular storage. In this case, problems arise in which the known device does not provide GPBA for the following reasons. For GPBA, which is a thin-walled elastic hose filled with gel or liquid, inside of which acoustic receivers, electronic information processing units, wire transit and power elements are located, it is impossible to use an packing seal, as when the antenna is pulled through such a seal, the shell will be deformed and contracted relative to the antenna power elements in the direction opposite to the setting, and liquid or gel will flow inside the antenna in the same direction (the “tube effect”), which leads to a violation of the fastening of acoustic and electronic blocks inside it and bloating of the shell near the rigid partitions in the antenna when approaching the stuffing box packing and, ultimately, to stop the process of installation and damage the antenna. This is a significant disadvantage of the prototype device.

The objective of the claimed invention is to remedy these shortcomings of the known technical solution, the technical result is the implementation of a device for the selection and selection of an extended GPBA, some of which is wound on an UPV winch, and part is located in an extended tubular storage without damage using excess pressure at the GPBA location - on the winch drum and at the entrance of the GPBA to the tubular storage.

To achieve the specified technical result, a flexible extended towed antenna (GPBA) is placed in the device for placing and retrieving (UPVA) containing a winch, a portion of GPBA is wound on its drum, a cable layer, tubular storage to accommodate another part of the GPBA and its terminal stabilizer, as well as a device for creating excess hydraulic pressure, new features have been introduced, namely: the winch and cable layer are enclosed in a sealed casing, made in the form of a detachable shell of a waterproof material, stretched over as much scaffold and hermetically connected to the tubular portion of the initial storage, which create excess hydraulic pressure device is sealingly connected with a shell made of waterproof material.

The most technologically advanced is the implementation of connectors of a waterproof shell in the form of a sealed two-layer zipper.

The main idea of the invention is that at the inlet of the tubular storage an airtight volume is created (sealing circuit) by assembly mounted on the openwork frame of the shell made of waterproof fabric,

The geometry of the proposed sealing loop is such that under the influence of external hydrostatic pressure, for example, when the UPV and GPBA are immersed, overboard water is filled with a centrifugal pump and an excess in relation to the outboard is sufficient to push the terminal stabilizer “plug” out of the tubular storage and bleed GPBA into flow. In the case of a surface ship for placing GPBA in an airtight circuit, the internal volume of the sealing circuit is filled with water to the pressure at which the terminal body is strained into the stream.

The essence of the invention is illustrated in FIG. 1, which shows the design of the proposed sealing loop module setting-selection UPV,

The proposed UPV (Fig. 1) contains a winch drum 1 and a cable layer 2 with GPAA 3 wound on it, a tubular storage 4 with a sealing device for the tubular storage 5 at the end of the tubular storage, which is distant relative to the winch, in the form of a washer with a concave surface mating with the surface the frontal end of the end body 5, the device 7 for creating excess hydraulic pressure P in the internal volume of the tubular storage, made, for example, in the form of a flange. The internal volume of the UPV is made in the form of fragments of waterproof material 8, mounted on collapsible racks of the frame 9, inscribed in the permissible circuit 10 of ship structures, and rigidly and hermetically connected, for example, using docking connectors such as a sealed double-layer zipper 11. Such connectors are easily undocked that provides easy access to the OLA elements.

In the proposed technical solution, the operation of the UPV for the submarine and surface ship is as follows: when equilibrium pressure is reached inside the sealing circuit, when the internal pressure inside the sealing circuit R _HV is equal to the external hydrostatic P _GTS or atmospheric (for NK), the device 7 for creating excess hydraulic pressure P pumps up an excess pressure sufficient to move the end stabilizer 5, and the end body is pushed into the stream, and the winch and bleeding GPBA, it is disinhibited and the GPBA is placed in the stream. With the necessary etched length of the GPAA and the tug cable, the winch is braked.

Thus, the proposed UPV provides for the creation of excess pressure at the inlet to the tubular storage, solves the problem of the safe placement and selection of GPBA, part of which is wound on the UPV winch, and part is located in the tubular storage without damage or stops and provides easy access for personnel to maintain and routine maintenance with UPV and GPBA and allows the most efficient placement of UPV mechanisms in the ship’s spaces of the carrier.

Claims (2)

1. Arrangement and retrieval device (UPV) of a flexible extended towed antenna (GPBA), containing a winch, on which a portion of GPBA is wrapped, a cable layer, tubular storage for accommodating another portion of the GPBA and its terminal stabilizer, as well as a device for generating excess hydraulic pressure, characterized the fact that the winch and cable layer are enclosed in a sealed casing, made in the form of a detachable shell made of waterproof material, stretched over the openwork frame and hermetically connected to the initial section of the pipe chatogo storage, and creation of excessive hydraulic pressure device is sealingly connected with a shell made of waterproof material. 2. The device according to p. 1, characterized in that the connectors of the waterproof shell are made in the form of a sealed two-layer zipper.

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