RU40286U1 - ELECTROMAGNETIC BOATING DEVICE - Google Patents

Abstract

Electromagnetic mooring device. Usage: shipbuilding, namely auxiliary equipment for mooring vehicles with electric traction, in particular ships. Effect: automatic connection to the coastal network, the possibility of starting propeller engines from it and recharging the battery. SUBSTANCE: electromagnetic system in the form of a transformer, the core of which consists of two parts carrying the primary and secondary windings, enclosed in separate cases, one of which with the primary winding is fixed with shock absorbers on the berth column, and the other is attached to the bed mounted on the bow or the stern end of the vessel, by means of a telescopic rod with spherical joints at the ends, with an axial spring shock absorber and radial springs connecting it to the bed. The primary winding is connected to the shore power network, and the secondary to the ship. On the lateral surface of the ends of the rods of both parts of the core and the housings are installed elements for guidance and docking of the core. When the vessel (11) approaches the berth (9), the hull (6), possessing freedom of movement thanks to the rod (12), springs (17) and hinges (16), with the help of guides (25) and rollers (26) is brought closer to the hull ( 5) where the primary winding is located (3). Nozzles (24) on the core rods (2) ensure accurate articulation of its 2 parts.

Description

The utility model relates to the field of shipbuilding, in particular to auxiliary equipment for mooring with the simultaneous power supply of ships and other floating equipment and can be used in electrical equipment with current collectors for power circuits of electric vehicles.

Known "electromagnetic mooring device" containing three electromagnets with a drive, made with the possibility of interaction with the steel sheet of the berth. Two of the three electromagnets are located symmetrically on the sides of the vessel, and one in its diametrical plane. All electromagnets are located in the niches of the ship. The middle electromagnet contains an emphasis, and onboard - hydraulic drives for extension (see AS of the USSR No. 1000340, publ. 02.28.83, class. 63 V 21/02).

The disadvantages of the known electromagnetic mooring device are the design complexity, the relatively large number of electromagnets and their large mass (together with their drives and mounting devices in niches), which reduces the degree of useful load of the vessel. In addition, the known mooring device does not provide electrical connection of the ship's electrical network with the shore. In this device, electric power is supplied to the electromagnetic mooring device from a source of marine electricity, which is not economically feasible.

Another "electromagnetic mooring device" is known (see AS USSR No. 1281474, publ. 07.01.87, class B 63 V 21/02). It contains an electromagnetic coupling element, interacting with the corresponding core on the berth, electrically connected to a current source, and a suspension unit of this element, including spring rods. The electromagnetic coupling element is made in the form of a multifaceted drum, which is mounted with the possibility of rotation relative to the horizontal axis, carrying an electromagnet on each face. Its electrical connection with the current source includes leaky cables that are passed inside the spring rods, one

the end of each of which is drawn through the axis of the drum, and the other is connected to a current chopper, which is equipped with the device.

The main disadvantage of the known electromagnetic mooring device is also low efficiency. This is because the known device, like the previous one, consumes expensive and considerable electricity only from a ship's electric current source. The known device in addition has a large mass and dimensions. In addition, the known device has a regime of repeated interruption of current, which is due to the multifaceted shape of the electromagnet, which (mode) adversely affects the operation of ship's electricity consumers.

Also known is an "electromagnetic mooring device" comprising an electromagnetic system comprising a hull with a coil of an electromagnet coil electrically connected to a shore power source, the hull being mounted on a berth by means of a slider and dampers mounted to move in vertical guides with the possibility of interacting with an electromagnet armature placed on the hull. These dampers are installed between the aforementioned berth and the guides, and the hull itself is pivotally connected to the slider by means of a spherical hinge (see AS USSR No. 1661048, published 07.07.91, class B 63 V 21/02).

This electromagnetic mooring device is the closest in effect to the claimed utility model.

A disadvantage of the known electromagnetic mooring device is the lack of communication between the shore power supply network supplying the known device and the ship’s, i.e. lack of efficiency when using it. This is due to the fact that to ensure the vessel’s parking at the berth with its approach (using this known device), electricity is used from the shore power source, and during the same period, the consumers of electric energy on the vessel are supplied from the ship’s power station, whose electricity is known to be more expensive. The disadvantage is the low power and inefficiency of using the device. In addition, the ship’s parking in a port with running engines negatively affects the environmental

situation at the port. Moreover, there is an irrational and rather fast depletion of the resource of the permanently working half-power drive engines of the ship power station having a limited resource (when they could not be started).

These disadvantages of the known device determine one of the reasons because of which it has not found application.

The technical problem to which the claimed invention is directed is to increase the cost-effectiveness, environmental friendliness and efficiency of using an electromagnetic mooring device.

The specified technical problem is achieved by the fact that the known electromagnetic mooring device comprising an electromagnetic system comprising a housing with a coil of an electromagnet coil electrically connected to the shore electrical network, and the housing is installed on the berth using depreciation means, the electromagnetic system is made in the form of a transformer , the core of which consists of two "E" -shaped mirror-symmetric parts, bearing on the rods of these parts of the core facing each other and respectively primary and secondary windings and concluded (i.e., parts) in a separate housing.

One of these hulls, having a primary winding, is fixed with a vertical orientation of the core connector plane using shock absorbers on a column mounted on the pier. The second core body, oriented accordingly, is pivotally attached to the bed mounted on the tip of the vessel (bow or stern), by means of a telescopic rod consisting of the outer and inner beams and having an internal axial shock absorber between the beams, outer radial springs connecting the outer beam with the bed, spherical hinges on the outer ends of the beams and a cross member on the inner beam near its hinge. Springs are also installed on the cross member at the ends, connecting the cross member with the housing of the second part of the core. The primary winding is connected to the shore power network, and the secondary to the ship. On the side surface of the ends of the rods facing each other

both parts of the core and the housings are equipped with structural elements made of non-magnetic material, designed to guide and dock the parts of the core. On the lateral surface of the middle ends of the rods of both parts of the core facing each other, elements of limit switches are installed.

It is advisable to perform such structural elements for guidance and docking of the core parts, in which they are made in the form of a funnel on each of the rods and converging guide planes of the housing on one of the core parts and a truncated cone on each of the rods and rollers of the housing, respectively, on its second part.

The proposed device when approaching the ship to the berth and docking of the transformer core develops sufficiently large efforts to ensure retention due to this vessel of various displacement.

In the inventive device, the windings are involved in the creation of attractive electromagnetic forces both on the primary side of the transformer and on the secondary side, while in the prototype, only one electromagnet (one coil) located on the quay is involved in the creation of the same forces, and as a result, in the proposed device the plane of the connector of the transformer magnetic circuit causes holding forces several times larger, which allows to expand the scope of the device, i.e. use it for mooring vessels of greater displacement, without additional mooring means. T.O. Increases the efficiency of using the device.

The claimed device also provides non-contact transmission of electricity from the coastal network to the ship. At the same time, possible small displacements of the tip of the vessel when approaching the mooring place (lateral, angular, in height) are compensated by the declared elements of the device made of non-magnetic material intended for guidance and joining of the core rods - guiding converging planes on one housing and rollers on the other provide rough guidance and nozzles on the lateral surface of the ends of the core rods in the form of a truncated cone and funnel provide accurate guidance.

With rough guidance, a certain structural rigidity allows to some extent to change the position of the tip of the vessel. The possible mismatch of the axes of both parts of the core at the moment of joining starts is compensated by the articulated-spherical mobility of the rod, and the stability of the position of the housing with the secondary winding is provided by radial springs.

The spring-loaded axial shock absorber of the rod and the shock absorbers of the hull with the primary winding compensate the load of the "bulk" of the vessel at the time of docking of the core. The springs mounted on the cross member of the rod provide a given orientation of the transformer ship in a vertical plane. Thus, the claimed device, equipped with an elementary limit switch, allows for the mooring and holding of large enough vessels due to the forces arising in the plane of the transformer core connector due to the action of an electromagnet in the form of a separate transformer, allows for simultaneous contactless transmission of coastal electricity to the ship.

To a greater extent, the advantages of the proposed device manifest themselves when mooring vessels with electric traction from rechargeable batteries, especially during short shuttle flights associated with frequent mooring of the vessel. When performing frequent and short-term parking, the automatic mooring and the subsequent connection of the vessel to the shore power network when using the claimed device creates sufficient effort to keep the vessel at the berth. At the same time (which is essential for frequent mooring), it is not necessary to use the complex known control system for the electromagnet, responsible (fraught with errors), manual operations on connecting (disconnecting) the vessel to the shore power network are excluded, the ship's AC consumers are supplied with power from the shore power through the ship without electric power conversion, including starting the propeller engine (at the time of unmooring) without consuming the battery’s capacity, as well as the possibility of recharging (if necessary) in the parking lot of the battery itself.

The figure 1 shows a General view of the electromagnetic mooring device in working condition, side view. In figure 2 is also a view along aa. In figure 3 is a part of a transformer with a primary winding and structural elements for guidance and docking of the core, side view. In figure 4 is also a top view. In figure 5 - also with a secondary winding, side view. In figure 6 is also a top view. Figure 7 is an electrical diagram of an electromagnetic mooring device with elements of a coastal and ship network.

The electromagnetic mooring device comprises a transformer 1, which includes a core 2 (FIGS. 3 and 5), which consists of two mirror-symmetric E-shaped parts carrying the primary 3 and secondary 4 windings. Both parts of the transformer 1 are installed in separate hulls 5 and 6. The hull 5 with the primary winding 3 is mounted with shock absorbers 7 (Fig. 1) on the column 8 of the shore berth 9. In this case, the plane of the transformer core connector is oriented vertically. The hull 6 with the secondary winding 4, oriented accordingly (the plane of the core connector is oriented vertically), is pivotally attached (movably connected) to the frame 10 mounted on the tip (fore or aft) of the vessel 11, by means of a telescopic rod 12 (Fig. 2). The telescopic rod 12 consists of two beams - the outer 13, facing the bed 10, and the inner 14, between which a spring shock absorber 15 is installed along the axis of the rod 15. At the ends of the rod (respectively, at the ends of the outer 13 and inner 14 beams) has spherical hinges 16. On springs 17 are radially mounted to the outer beam 13 of the rod 12, the opposite ends of which are fixed to the bed 10, for which the upper part of the bed has a niche 18. The inner beam 14 near the hinge has a cross member 19, at the ends of which springs 20 are installed, opposite ends which are attached to the housing 6 in order to ensure vertical orientation of the plane of the core 2. The primary 3 winding is connected to the coastal 21 electrical network (Fig. 7), the secondary 4 to the shield 22 of the marine electrical network with consumers 23. On the side surface of the ends of the rods of each of E core pieces 2 for

to ensure the joining of its parts, nozzles of non-magnetic material 24 are installed, made in the form of a funnel (inner surface) and a truncated cone (outer surface). On the lateral surface of the housings 5 and 6 for coarse guidance, which ensures the docking of the core, structural elements of non-magnetic material are installed in the form of guides 25 of converging planes on one housing and rollers 26, respectively, on the other. On the lateral surface of the ends of the middle rods of both parts of the core 2, the elements of the limit switches 27 are installed.

The device is used as follows. When the vessel 11 approaches the berth 9, the hull 6, which has some freedom of spatial movement provided by the rod 12, the spherical hinges 16 and the springs 17, is drawn together with the guides 25 and rollers 26 to the hull 5, where the transformer primary 3 is placed. Nozzles 24 on the rods of the core 2 provide accurate mating of the two parts of the core. The loads from the bulk of the vessel are compensated by spring shock absorbers 7 and 13. Using the limit switches 27, the primary 3 windings are connected automatically to the shore supply network 21 and the secondary 4 to the power board from shore 22 and through the shield 22 to ship consumers 23 . Under these conditions, power is provided to all ship, including, if necessary, can be provided through the charging and rectifying device 28 - recharging the batteries 29 and starting the propeller motors (not shown) when Ode to the ship. When the vessel is stationary, electromagnetic forces in the magnetic circuit (core 2) in the plane of its connector securely hold the vessel 11 at berth 9.

When the vessel leaves, the launch of the propeller motors, as one of the ship's consumers of electricity, is carried out with electricity from the coastal network. At the end of the start-up period, automatically (not shown in the diagram) by means of switches 27, the shore network is disconnected from the primary winding 3 of the transformer (and, accordingly, the shield 22) and the ship consumers are connected to the power via an autonomous inverter 30.

Claims (2)

1. An electromagnetic mooring device comprising an electromagnetic system comprising a hull with a coil of an electromagnet coil electrically connected to a shore electrical network, the hull being mounted on a berth using depreciation means, characterized in that the electromagnetic system is made in the form of a transformer, the core of which consists of two E -shaped mirror-symmetric parts bearing on the rods of these core parts facing each other, respectively, the primary and secondary windings and the prisoner in separate hulls, one of which with the primary winding is fixed with a vertical orientation of the core connector plane using shock absorbers on a column mounted on the berth, and the second, oriented accordingly, is pivotally attached to the bed mounted on the tip of the vessel by means of a telescopic rod consisting of outer and inner beams and having an internal axial shock absorber between the beams, outer radial springs connecting the outer beam with the bed, spherical joints on the outer ends an alcove and a cross-member on the inner beam near its hinge, on which there are also springs installed at the ends, connecting the cross-member to the body of the second part of the core, the primary winding connected to the shore electrical network, and the secondary to the ship, on the side surface of the ends of the rods of both rods facing each other core parts and housings are equipped with structural elements made of non-magnetic material for pointing and joining core parts, and on the side surface of the middle ends of the rods facing each other parts of the core elements set still and limit switches. 2. The electromagnetic mooring device according to claim 1, characterized in that the structural elements for guidance and docking of the core parts are made in the form of a funnel on each of the rods and converging guide planes of the housing on one of the core parts and a truncated cone on each of the rods and rollers of the housing - respectively, in its second part.