KR20150026408A - De-icing apparatus for arctic operating ship - Google Patents

Abstract

Disclosed are a ship for a polar region and a de-icing apparatus of an operating ship for a polar region. According to the present invention, the de-icing apparatus of a ship for a polar region relates to a de-icing apparatus removing ice attached to a deck of a ship for a polar region, comprising: a duct unit installed in a lower portion of the deck; and a waste heat circulation pipe arranged inside the duct unit. The present invention is configured to de-ice the deck using heat generated when the waste heat of an engine room in a ship for a polar region is circulated through the waste heat circulation pipe.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a de-icing apparatus for an arctic ship,

The present invention relates to an ice maker for polar bears, and more particularly to an polar beaker capable of maintaining the stable operation of a vessel by deicing frozen icing on the deck of the polar bears using the waste heat of the engine room, The present invention relates to an ice maker for a ship.

The Arctic Sea accounts for 22% of the world's oil and gas, a large amount of high-value minerals, and 37% of the world's fisheries resources.

Due to the Arctic Ocean, the shipbuilding industry is expected to increase orders for special vessels such as icebeakers, ice-reinforced ships and ice strengthened ships, while the steel industry expects cryogenic steel demand to be used for offshore offshore structures .

However, a heating system is needed to prevent structures exposed to low-temperature outside air from freezing when navigating in areas with low outside temperatures, such as polar regions.

In addition to the above-mentioned special lines such as the icebreaker and the ice-making line, in order to operate an area where the temperature difference between the polar regions and the summer or winter is extreme, LNG carriers, COTs, container ships, etc., It is necessary to do.

On the other hand, the International Maritime Organization (IMO) 1056 and MEPC / Circ. 399 Arctic sea vessels, adopted the guidelines for IMO in response to global warming and the increasing possibility of ship's polar navigation due to the decline of Arctic sea ice, and the recently enforced Polar-related code (Polar Code is being developed.

In addition, discussions on pollution and life-threatening structures in ship structure, ship equipments and polar waters are also concentrated.

In order to cope with the development of such polarity related codes, specialized equipment must be installed, and most of the voyages, institutions, and communication equipments mounted should be operated normally under cryogenic environmental conditions.

Especially, if icing occurs in the superstructure and deck materials when the ship is trapped in ice when the ship is operating in ice, it is designed to be able to de-icing because it changes the center of gravity of the ship and lowers the stability of the ship. (Shipboard Winterization, 2009).

For reference, the performance evaluation of equipments for winterization (anti-freezing and anti-cold treatment) is roughly divided into categories I and II, where category I is related to anti-icing, de-icing.

The heating system of a ship disclosed in Japanese Laid-Open Patent Publication No. 10-2011-0011396 is a system for heating a ship having a structure provided with a packing portion for sealing the interior of the ship from outside air, wherein the inner periphery And a heating cable provided along the main body and generating heat when power is applied; A supporter provided outside the heating cable to attach the heating cable to the packing unit and protect the heating cable from the outside; And a terminal box provided at one side of the packing part to apply power to the heating cable.

However, the conventional heating system of a ship requires a separate heating cable for generating heat and a terminal box for applying power to the heating cable, which is a problem in that it is expensive to prevent icing.

In addition, a drilling deck heating apparatus using waste heat of a mud pump in a marine drilling ship disclosed in Japanese Laid-Open Patent Publication No. 10-2011-0021525 is provided with a plurality of mud pumps and is provided at one side A mud pump room provided with a first air supply fan for introducing outside air and a first discharge opening for discharging high temperature heat to the other side and a plurality of drilling equipment are disposed and hot air is introduced from a low temperature for protection of the drilling equipment And a second exhaust port for discharging the internal air to the other side of the exhaust fan, wherein the exhaust pipe is connected to the outside of the first fan, and a second air supply fan A heating inflow pipe extending from the heating inflow pipe to the inflow port, And a heat exchanging unit for exchanging heat with the outside air to cause the heated outside air to flow into the drilling deck chamber.

However, in the drill deck heating apparatus using the waste heat of the mud pump in the conventional marine drilling rig, the first supply fan and the first discharge port are installed in the mud pump room, the second discharge port is installed in the drill deck room, The heat exchanging unit must be separately provided, so that a large facility cost is required for ice making, and the temperature of the waste heat of the mud pump is too low.

Korean Registered Patent No. 10-1148243 (registered on May 11, 2012)

Korean Registered Patent No. 10-1138764 (registered on April 16, 2012)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a dehumidifier, Which is capable of maintaining the safety operation of the ship by removing the instability of the ship due to the change of the center of gravity of the ship by deicing the frozen icing on the deck of the ship, and to provide an ice maker for the polar ship.

According to an aspect of the present invention, there is provided an ice maker for removing ice adhered to a deck of a polar ship, the duct comprising: a duct installed at a lower portion of the deck; And a waste heat circulation pipe arranged in the duct unit, wherein the deck is made by using heat generated when circulating the waste heat of the engine room of the polar ship through the waste heat circulation pipe.

The waste heat circulation pipe and the engine room may be connected to each other through a connection pipe, and a forced circulation fan may be installed in the connection pipe.

The duct portion may be formed around the deck, and the waste heat circulation pipe may be arranged in a plurality of rows and a plurality of rows.

The waste heat circulation pipe and the engine room may be connected by a connection pipe, and the waste heat circulation pipe may be installed horizontally below the deck.

The polar marine vessels include both semi-submersible drilling rigs, semi-submersible offshore plants, and floating offshore plants.

According to the embodiment of the present invention, the waste heat generated in the engine room is circulated to the inside of the waste heat circulation pipe installed in the deck, so that icing on the deck of the polar ship is deiced by using the waste heat of the engine room, By relieving the instability of the ship due to the change of the center of gravity, the safe operation of the ship can be maintained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an anti-polar ship according to an embodiment of the present invention and an anti-
Fig. 2 is a plan view showing a duct portion formed around the deck of Fig. 1 and a waste heat circulation pipe in the duct portion,
3 is a sectional view taken along the line AA in Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a plan view showing a duct portion formed around the deck of FIG. 1 and a waste heat circulating pipe within the duct portion, and FIG. 2 is a plan view showing a waste heat circulation pipe in the duct portion, 3 is a sectional view taken along the line AA in Fig.

As shown in FIGS. 1 to 3, an arctic vessel, for example, semi-submersible drill ship 10 according to an embodiment of the present invention is installed on top of a pontoon 1 forming a buoyancy, A deck 2 in which a moonpool is formed so that a drilling operation can be performed at a central portion thereof, a plurality of columns (not shown) connecting a pontoon 1 and a deck 2, 3), and a derrick (4) installed at the top of the frame.

The semi-submersible drilling rig 10 is provided with a living quarter 5 as a living space and cultural space for workers on one side of the deck 2 and a lifeboat and drilling equipment And a crane (not shown) used for various purposes, such as raising material from the outside to a drill ship, may be installed.

An engine room (10) in which a plurality of engines (E) are installed is formed at a lower portion of the deck (2).

The engine E includes a main engine that generates power to move the semi-submersible drill ship itself and / or a plurality of sub engines including a sub-engine that adjusts the position or changes the direction of the water, And the engine room 10 may also be formed of a plurality of units, and may be formed in the vicinity of the bow of the port and starboard, respectively.

An ice maker for an oblique vessel according to an embodiment of the present invention is an ice maker for removing ice adhered to a deck (2) of an polar ship, comprising: a duct unit (20) installed at a lower portion of the deck (2); And a waste heat circulation pipe 30 arranged in the duct unit 20 so as to circulate the high heat of the engine room 10 of the polar ship in the waste heat circulation pipe 30 So that the deck 2 can be ice-cooled.

That is, the apparatus for ice-making polarized vessels according to an embodiment of the present invention is configured to be able to utilize the high temperature (high heat) generated in the engine room 10, the waste heat of about 60-80 degrees,

Fig. 2 is a plan view showing a duct portion formed around the deck of Fig. 1 and a waste heat circulation pipe within the duct portion, and Fig. 3 is a sectional view taken along line A-A of Fig.

2 and 3, in the polarizing vessel ice maker according to the embodiment of the present invention, the duct portion 20 may be formed at the lower periphery of the deck 2. In the duct portion 20, The waste heat circulation pipe 30 can be arranged. The waste heat circulation pipe 30 may be arranged in a plurality of rows and a plurality of rows.

The waste heat circulation pipe 30 and the engine room 10 may be connected to each other by a connection pipe 15. The connection pipe 15 is preferably provided with a forced circulation fan 16. [ The forced circulation fan 16 serves to forcibly circulate the air in the waste heat circulation pipe 30.

Here, the waste heat circulation pipe 30 is preferably horizontally arranged on the lower part of the deck 2. By horizontally arranging the waste heat circulation pipe 30, the vertical center of gravity (VOG) of the semi-submersible drilling rig is lowered And it is possible to stably design and install semi-submersible drilling rigs.

In the present embodiment, the waste heat circulation pipe 30 is arranged in two rows and three columns in the duct portion 20, but it is needless to say that the waste heat circulation pipe 30 can be constituted by a plurality of rows and columns. The icemap formed on the deck 2 can be quickly and easily removed as the waste heat of the engine room 10 is forcibly circulated through the waste heat circulation pipe 30 in the duct portion 20 formed around the deck 2 .

Further, in the present invention, it is needless to say that a drain structure may be additionally provided to prevent freezing of ice around the circulation pipe and freezing of ice in the duct.

According to an embodiment of the present invention constructed as described above, an apparatus for ice-making a polar working vessel circulates waste heat generated in an engine room to a waste heat circulation pipe installed in a deck through a connection pipe, By deicing the frozen ice on the deck of the ship, the safety of the ship can be maintained by eliminating the instability of the ship due to the center of gravity of the ship.

Semi-submersible drilling rigs (semi-rigs) have been described as examples of polar-working ships in the present invention. However, in addition to semi-submersible drilling rigs, A semi-submergible offshore plant, a floating offshore plant, etc., which perform the above-mentioned operations.

1: pontoon
2: Deck
3: Column
4: Derrick
5: Residential District
10: Engine room
15: Connector
16: Forced circulation fan
20: Duct part
30: waste heat circulation pipe

Claims (8)

1. An ice maker for removing ice attached to a deck of a polar ship,
A duct portion installed at a lower portion of the deck; And
And a waste heat circulation tube arranged in the duct section,
Wherein the deck is made of ice using the heat generated when the waste heat of the engine room of the polar ship is circulated through the waste heat circulation pipe. The method according to claim 1,
Wherein the duct portion is installed around the deck. The method according to claim 1,
Wherein the waste heat circulation pipe is arranged in a plurality of rows and a plurality of rows. The method according to claim 1,
Wherein the waste heat circulation pipe and the engine room are connected to each other by a connection pipe. 5. The method of claim 4,
Wherein the connecting pipe is provided with a forced circulation fan. The method according to claim 1,
Wherein the waste heat circulation pipe is installed horizontally at a lower portion of the deck. The method according to claim 1,
Wherein said polar ship comprises a semi-submersible drilling rig, a semi-submersible offshore plant, and a floating offshore plant. A duct portion provided at a lower portion of the deck; And a waste heat circulation pipe arranged in the duct unit, wherein the deck is made of ice using heat generated when waste heat of the engine room of the polar-sized ship is circulated through the waste heat circulation pipe, .

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