RU2177434C1 - Transport trimaran - Google Patents

Abstract

FIELD: shipbuilding; construction of ships and their holds used for carrying ice bars and watercraft such as barge- containers barcons with cargoes inside them. SUBSTANCE: trimaran has center and side hulls with double-heat-insulated walls and shipboard power plants with steering gears arranged in all three hulls. Opening doors of fore fairings and loading compartments formed by movable fore gate and bulkheads of hold are arranged in fore portions of center and side hulls. Center hull may be loaded and unloaded with the doors of fore fairings closed; side hulls may be loaded and unloaded with doors of fore fairing of center hull closed. EFFECT: facilitated cargo handling procedure; low cost; enhanced safety of navigation. 7 dwg

Description

 The invention relates to shipbuilding, and in particular to the construction of ships and their holds, intended for the transport of ice beams and floating vessels - barcones with the goods placed in them.

 The purpose of the present invention is to improve the handling operations.

 Known vessels for the transport of goods (US 4348972 A, SU 1217717 A, SU 1625768 A and FR 2533192 A), including the main hull, lifting and unloading devices and other deck equipment, as well as auxiliary hulls on the sides of the main hull.

 A disadvantage of previously known technical solutions is the small maneuverability of the vessel, especially at low speeds, a large inertial braking distance, and a relatively low speed of cargo handling.

 This goal is achieved in that the trimaran contains hulls with double insulated walls and marine power plants with steering devices in all three hulls. In order to move goods directly from the water to the hold and vice versa, a loading compartment is formed in the bow of at least one of the hulls, formed by moving bow gates and a hold partition. The nose fairing of the body is made in the form of moving flaps.

 The figure 1 shows a diagram of a trimaran transport vessel.

 The figure 2 shows a diagram of the middle (side) trimaran body with opening flaps of the nose fairing.

 In figures 3-7 shows a loading diagram of a trimaran transport vessel.

 The vessel 1 consists of three hulls (Fig. 1,2): the middle hull 2 and the side hulls 3. All hulls are equipped with marine power plants and steering devices. All hulls of the vessel are cargo. Cases are fastened to each other by various intercases and mountings. The nasal parts of all cases contain sash 4 nose fairing and solid upper parts 5. The height of the surface of the 5 sash 4 provides for loading-unloading passage of the surface of the ice block 9 (barcon or other cargo).

 On the hulls of the vessel are various devices for controlling the flaps 4 of the nose fairing, the bow gate 6 and the bilge baffle 7. The bow gates 6 and the bilge baffle 7 form the loading compartment 8 of the trimaran hull. The loading compartment 8 performs the functions of receiving the cargo and then forwarding it to the hold of the hull. The design of the loading compartment 8 provides for water intake and placement in the hold of an ice beam 9 (barcon or other cargo). Since there are no fundamental differences between the main and side hulls in the loading and unloading system, the opening scheme of the nose fairing flaps 4 (Fig. 2) and the loading (Figs. 3-7) of one of the hulls are common to the others. Loading and unloading of the middle body 2 occurs with the closed wings 4 of the nose fairings of the side casings 3. Loading and unloading of the side casings 3 occurs with the closed wings 4 of the nose cowl of the middle casings 2.

 Consider the operation of loading one of the hulls of the vessel. Sash 4 of the nose fairing opens (Fig. 3, 4). Next, the bow gates 6 of the loading compartment open 8. Seawater fills the loading compartment of the trimaran hull. The hull is warming down to the calculated values that ensure the cargo is received directly from the water into the hold through the open bow gates 6. The vessel, maneuvering with engines, floats on the ice block 9, placing it inside the hold in the loading compartment 8 (Fig. 5). Next, the bow gates are closed 6. Outboard water remaining in the loading compartment 8 is pumped overboard (Fig. 6), the bilge bulkhead 7 is opened, the cargo is transported deep into the vessel by means of various devices 10 and placed in the hold (Fig. 7). These operations occur before the ship is fully loaded. A ship unloading operation is the reverse of a loading operation. To ensure maximum load capacity of the side hulls, the use of atomic power plants is proposed.

Claims (1)

 Trimaran transport vessel containing the middle and side hulls with double insulated walls and ship power plants with steering devices in all three hulls, characterized in that the opening flaps of the nose fairings and loading compartments formed by the moving nose gates are located in the bow of the middle and side hulls and hold partitions, while the middle body is made with the possibility of loading and unloading with the closed wings of the nose fairings of the side buildings, and the side bodies are made with the possibility of their loading and unloading with the closed wings of the nose fairing of the middle body.

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