Device for tying rope to towed underwater vehicles

IPC classes for russian patent Device for tying rope to towed underwater vehicles (RU 2337852):

B63B21/66 - Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables (salvaging underwater vessels or objects B63C0007000000; towed underwater vessels B63G0008420000)

B63B21/56 - Towing or pushing equipment (tugs B63B0035660000)

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Device for tying rope to towed underwater vehicles / 2337852

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Submarine 1 comprises upper deck 4, wheel house 3 and device 8 to launch self-propelled auxiliary underwater vehicle 90 and to take it aboard. Said device 8 incorporates handling device 8A to transfer said apparatus between storage area 18 and launch-and-take aboard area 19, and reversing gripper 14 articulated with said device 8A to allow disconnecting apparatus 90 in launching and connecting it in taking aboard. Device 8 is designed to make launch-and-take aboard area staying outside turbulence zone 7 that surrounds submarine in running.

FIELD: transportation; shipbuilding.

SUBSTANCE: invention can be used in towed underwater vehicles, dropped platforms and in wells for oil and gas extraction. The device for tying rope to a towed underwater vehicle provides for electrical and mechanical contact between the towed underwater vehicle and the towing vehicle, which allows for free winding of the rope and protects the device itself from external effects. The device consists of two sealed chambers in line, made from strong protective case and inner sections, in which there is a powered built-in support of wires armouring, unit for sealing the cable inlet the section, unit for sealing the cable itself, rotating current collector and a pressure-sealed connector socket. The chambers are joined through bearing units, providing for rotation of the inner chamber with the powered built-in support of the cable and taking up tractional axial and lateral loads. The chambers are filled with an electrically insulating liquid and have compensators for varying the volume of the dielectric liquid. The device is joined in line to the body frame of the vehicle and through a pressure-sealed connector to the neck of the vehicle.

EFFECT: more reliable operation of the device.

2 dwg

The invention relates to marine applications and can be used in the operation of the towed underwater vehicles, drop platforms and during operations in wells oil and gas production.

The known device (patent # DD B63G/2248178 from 28.10.80 "Device for securing heavily loaded rope with internal cable and no DD B63G/2343320 from 22.10.81 "Device for securing a tow rope with electrical cable for underwater floating body") do not protect the cable from damage due to twisting. The closest analogue of the claimed invention is patent RU No. 2240251 02.07.2003, IPC WV 21/66 "Device for suspension of an underwater vehicle to a towed cable-cable", which is taken as a prototype. The prototype contains power terminations armor wires, rotating current collector in the volume filled with insulating fluid, the pressurizer liquid in the form of diaphragms, ensures the promotion of the cable, but does not protect the device from external factors, has an additional contact resistance in the plug and wall outlet, will not prevent the flow of dielectric fluid in the gap of the cable, and the "universal joint" is not, because the axis are located in different planes, has a "dead zone" and not orients the position of the apparatus when the tug is VCE and tripping operations.

The purpose of this invention is to protect the device when towing and lifting operations, ensuring the orientation of the underwater vehicle and preventing the flow of fluid into the gaps of the cable. When coaxial arrangement durable protective housing and the inner rotating section, the outer case protects the device from shock longitudinal and transverse loads and transmits the pulling force from the cable to the device when towing and lifting operations. The inner section with the sealing power armor wires of the cable nodes sealing of cable and rotating current collector connected to the protective housing through bearing assemblies, taking traction axial and lateral forces occurring when towing and lifting operations and providing free promotion for the cable.

Provides protection from flowing dielectric fluid from a sealed compartment in the gaps of the cable. Electrical leads are connected by soldering contacts the rotating parts of the current collector. Intersectional space with bearing units are sealed and filled with insulating fluid or oil, to compensate for changes in the volume of which is mounted a flexible goreopsy compensator. Swivel apparatus with a protective device is sudestada through a horizontal axle, providing the orientation of the device when towing and lifting operations, electrical connection with block part of Germersheim inner section of the device is provided with cable Germersheim.

Figure 1 presents a General view drawing of the device.

Figure 2 - cross section AA of the device on the toroidal expansion joint.

The coupling device towed underwater apparatus with cable-cable consists of two coaxial sections, forming a sealed cavity B and C, and site of power termination armor wires.

Power termination is in the cone 1 and is sealed to the adapter 2 flange 3. Internal sealed cavity B is formed between the adapter 2, a flange 3, a housing 4, the flange 5 and the outlet of Germersheim 6. Inside the cavity B are rotating part of the current collector 7, the outlet of the current collector 8 and the node sealing cable consisting of a rubber cover 9 and the bushing 10. On the housing 4 set the aperture compensator 11 and the tube 12.

A sealed cavity In the outer section formed in the protective housing 13, the flange 5, the cone 1 and the valve internal sections.

The free rotation of the inner section is provided with radial bearings 14 and 15 and the thrust bearing 16. In the housing 13 has a toroidal expansion joint 17 (see figure 2).

During Assembly of the device for the running end of the cable-Tr is sa 18 through the opening in the protective housing 13 opened in the cone 1, where implemented sealing power armor wires, flooded fusible material 19. The cable itself is introduced into the sealed compartment B through o host adapter 2, consisting of two oppositely directed cuffs 20, separated by a washer 21 and pressed to contact with the flange 3.

The cable is sealed by the cover 9 and the sleeve 10, which prevents the flow of dielectric fluid in the gap cable.

Sleeve 10 is connected by soldering contacts the rotating parts of the current collector 7. The outlet of the collector 8 is fixed in a stationary flange 5, and the current-carrying contacts of the socket are connected by soldering with the outlet of Germersheim 6 installed in the same flange 5. The flange 5 is fixed in the housing 13 of the locking screws 22. Fill the cavity B of the insulating liquid is produced through the hole closed by a stopper 12. The completeness of the fill and datalive fluid, if necessary, is performed through the opening closed by a stopper 23. To compensate for changes in fluid volume set pan membrane 11, closed lid 24. The cone 1 is installed 14 radial and thrust 16 ball, and between the housing 4 and the flange 5 is another radial bearing 15. The cavity In between the inner section and the protective housing 13 to keep the bearings and protect them from the corrosive effects of sea water C is filled with liquid oil or dielectric fluid. To compensate for changes in fluid volume has flexible goreopsy compensator 17 (see figure 2), the ends of which are secured to the sleeves 25 and are tightened by nuts 26. Fill cavity is performed after installation of the expansion joint 17 through the opening closed by a plug 27, and the control fill and Dosaev through the hole closed by a plug 28. The mechanical connection of the protective housing with the machine through the axis 29, and the electric socket of Germersheim inner section of the cable 30 with the plug Germersheim 31.

The sample was manufactured and successfully bench tests on Board the towing vehicle.

The coupling device towed underwater apparatus with cable-cable that provides free promotion cable containing power terminations carrying wires rigidly associated with the sealed section filled with insulating fluid, the node sealed input current-carrying lived, rotating current collector and the compensator changes the volume of the insulating liquid in the form of diaphragms, wherein the device is made in the form of two coaxial sealed sections and consists of a durable protective housing inside which there are power sealing pressure section of the site, preventing the penetration of the dielectric fluid in the gap of the cable, and block part of Germersheim, p is ICEM inner section with power terminations connected to the protective housing through bearing assemblies and intersectional space with bearing units filled with oil or dielectric fluid, and provided with a toroidal compensator changes the volume of the liquid, while the protective housing connected to the housing of the submersible horizontal axis, and the electrical connection of the device with the inner section of the device provided with cable Germersheim.