KR20230062160A - Air condtioning system of artic vessel and its outer air intake structure - Google Patents

Abstract

The present invention relates to an air conditioning system for polar ships operating in polar waters, which comprises: an engine room provided in a hull and equipped with a generator engine therein; an outdoor air intake chamber for sucking in low-temperature outdoor air through an outdoor air intake port at the top of the engine room; an intake filter unit for removing foreign substances contained in the air inside the outside air intake chamber; and an outdoor air heating chamber provided separately from the outdoor air intake chamber to heat the outdoor air flowing into the interior. The intake filter unit is provided as a trunk type installed on a deck inside the outdoor air intake chamber.

Description

Air conditioning system of polar vessel and outside air intake structure of polar vessel

The present invention relates to an air conditioning system for a ship, and more particularly, to an engine room air conditioning system for a ship operating in polar regions, for sucking in low-temperature outside air from a ship operating in polar waters and supplying it to the inside of an engine room, and outside air of the ship for polar regions. It is about the intake structure.

As Arctic sea ice is lost due to global warming, interest in the Northeast Passage near Russia and the Northwest Passage near Canada is increasing.

The Arctic Ocean region has many resources and is known as a newly emerging tourist destination, so research on the development of polar routes for the purpose of transportation, supply and tourism according to the development of polar oil fields is becoming active.

About 25% of the world's underground resources are buried, and the Arctic Ocean neighboring countries such as the United States, Canada, Russia, Denmark, and Norway are leading related research to develop the Arctic Sea Route, which reduces time and distance by more than 30% compared to existing routes. are doing

According to data released by researchers from the US and Canada, the current traffic volume of the Arctic Sea Route reaches 2% of the global ship traffic by 2030 and is expected to reach 5% by 2050. It is highly likely that the opening time will gradually come forward.

Polar waters, unlike general waters, have a special ice environment, so it is necessary to approach them in consideration of environmental risk separately from R&D in terms of parts and materials. In particular, ships operating in the Arctic Ocean need an approach in terms of safe navigation because potential risk factors are scattered more than in general sea navigation.

The environmental conditions of polar waters are such that the average air temperature reaches about -52℃ and icebergs or pack ice floating in extreme solar radiation waters make ships operating in polar waters operate in normal waters. Unlike ships, an air conditioning system that considers harsh environments is required.

The foregoing technical configuration is a background technology for helping understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

Republic of Korea Patent Registration No. 10-164595 "Air conditioning system for ships for polar regions"

1 is a diagram schematically showing the configuration of an air conditioning system for a ship for polar regions according to the prior art.

Conventionally, by heating outside air using an electric heater or a thermal oil system and then supplying it to the engine room (or engine room), the operation of the engine and other devices provided in the engine room can be smoothly performed even in the polar sea environment. and damage to equipment and devices caused by cryogenic environments can be prevented.

As shown in FIG. 1, the air conditioning system of a polar vessel according to the prior art obtains air to be supplied to the engine room (1) from low-temperature outdoor air, and uses a heater (4) that uses electricity or thermal oil as a heat source. After heating to a certain temperature by using, it is configured to be supplied into the engine room (1) through the supply fan (5).

In the air conditioning system of a polar vessel according to the prior art, one or more heaters 4 and one supply fan 5 may be provided inside a structure formed on an upper part of an engine room 1, and air heated by the heater 4 through the supply fan (5) to an area that requires high-temperature air heated in a cryogenic environment such as the inside of the engine room (1) as well as the machinery room (2) or the POD room (3). can be supplied.

However, in the case of a thermal oil system using thermal oil to heat low-temperature outdoor air, the system configuration is complicated and not only occupies a lot of installation space, but also requires a lot of initial equipment cost and maintenance cost.

In order to solve this problem, the air conditioning system of a ship for polar regions according to the prior art heats low-temperature outside air and then supplies it to the engine room 1, and sucks in low-temperature outside air without going through an electric heater or a thermal oil system to the engine. (6), the direct supply method is also applied.

Referring to FIG. 1, an air intake chamber 7 is provided in the upper structure of the engine room 1 to suck in low-temperature outside air and supply it as combustion air, and the inside of the air intake room 7 includes the outside air to be sucked in. A filter unit (9) for removing foreign substances and a silencer (10) for removing noise generated when inhaling outside air are installed, and the filter unit (9) inside the air intake chamber (7) is installed in the engine. The intake duct 8 is connected to (6) so that low-temperature outside air can be directly supplied to the engine 6.

Here, the suction duct 8 may be made of a material resistant to low temperatures, such as SUS, so that it can withstand the cryogenic air temperature in the polar sea environment, and on the conventional suction duct 8, the suction duct 8 A control damper (Start-up damper) 11 is installed to control the flow direction of the air inside.

In addition, the filter unit 9 and the silencer 10 provided inside the air intake chamber 7 are installed upstream of the intake duct 8, and the installation of the filter unit 9 and the silencer 10 Alternatively, there is a risk that the engine 6 may be damaged due to foreign substances flowing into the intake duct 8 during the operation process.

In order to prevent damage to the engine 6 due to inflow of foreign substances, design changes of the air conditioning system are required, but the filter unit 9 and silencer 10 used in the prior art are manufactured by engine manufacturers such as MAN or Wartsila Since it is a ready-made product, it is difficult to change the connection structure with the suction duct 8.

The present invention is intended to solve the above-mentioned problems, while smoothly supplying outside air to the engine of a polar vessel operating in polar waters, preventing damage to the engine due to inflow of foreign substances in the duct, and efficiency in terms of installation and maintenance. It is an object of the present invention to provide an air conditioning system for a ship for polar regions and an outside air intake structure for ships for polar regions.

According to one aspect of the present invention, an outdoor air intake structure for a polar vessel for directly supplying low-temperature outdoor air to a generator engine installed inside an engine room in a vessel operating in polar waters, comprising an outdoor air intake at the top of the engine room. an outdoor air intake chamber for inhaling low-temperature outdoor air through the; a suction filter unit for removing foreign substances contained in the air inside the outside air intake chamber; and an outside air intake structure of a polar vessel including a connection duct unit connecting the intake filter unit and the generator engine.

The intake filter unit may be provided in a trunk type installed on a deck inside the outside air intake chamber.

In addition, the intake filter unit may include a base support installed on the deck of the outside air intake chamber and communicating with the connection duct unit; a filter casing having a rectangular cube shape and surrounding the base support; and a plurality of filter members coupled to a filter frame provided on a wall surface of the filter casing.

In addition, an entrance door in the form of a manhole for entering the inside of the suction filter unit is installed on one side wall of the filter casing, and the filter frame may be formed on the remaining wall surface except for the one side wall surface of the filter casing.

In addition, a filter fixing means for fixing the plurality of filter members on the filter frame may be further included.

In addition, the filter fixing means may include a stud installed vertically on one surface of the filter frame; a fixing nut fastened to a screw thread formed on an outer circumferential surface of the stud; and a fixing pad inserted into the stud and positioned between the filter frame and the fixing nut.

In addition, the intake filter unit may further include a protective means installed at a lower open portion of the base support to prevent inflow of foreign substances into the connection duct unit and damage to the generator engine.

In addition, the protection means, a pair of ring frames having a diameter corresponding to the lower end of the base support; and a mesh member installed between the pair of ring frames.

In addition, the protecting means may further include a support installed on an upper portion of any one of the pair of fixing frames in order to prevent the mesh member from sagging.

In addition, a silencer unit for reducing noise generated when outside air is sucked into the outside air intake chamber may be further included.

In addition, the silencer unit may be provided in a duct type at the lower part of the outside air intake chamber.

In addition, the silencer unit may include a silencer housing; a connection support provided on one side of an outer surface of the silencer housing; and a sound absorbing member provided inside the silencer housing to reduce noise generated when external air is sucked in.

In addition, the silencer housing includes a housing body having a rectangular planar shape and provided in a columnar shape; and end flanges respectively formed on upper and lower portions of the housing body.

In addition, the sound absorbing member may be formed elongated along the longitudinal direction of the silencer housing and provided in the form of a baffle.

In addition, a plurality of sound absorbing members may be disposed spaced apart from each other at regular intervals inside the silencer housing.

In addition, the silencer unit may further include a heat insulating part installed on an outer wall surface of the silencer housing.

In addition, the heat insulation unit, a perforated plate through which a plurality of holes are formed; and a heat insulating material attached or coated on the perforated plate.

In addition, one or more connection supports may be formed on one side of an outer surface of the housing body.

In addition, one or more silencer units may be installed at upper and lower portions of the connection duct unit.

According to another aspect of the present invention, an air conditioning system for a polar vessel operating in polar waters, comprising: an engine room provided in a hull and having a generator engine therein; an outside air intake chamber for inhaling low-temperature outside air through an outside air intake at an upper portion of the engine room; a suction filter unit for removing foreign substances contained in the air inside the outside air intake chamber; and an outdoor air heating chamber provided separately from the outdoor air intake chamber to heat the outdoor air introduced into the interior.

The outside air heating chamber may include a heater unit for heating low-temperature outside air introduced into the inside; and a fan unit supplying outside air heated through the heater unit to the inside of the hull.

In addition, one or more of the heater unit and the fan unit may be provided inside the outdoor heating chamber.

In addition, a connection duct unit connecting the intake filter unit and the generator engine; and a silencer unit for reducing noise generated when outside air is sucked into the outside air suction chamber.

In the present invention, a method of heating low-temperature outdoor air and supplying it to the engine room and a method of sucking in low-temperature outdoor air and directly supplying it to a generator engine inside the engine room are applied together, thereby reducing the initial equipment cost and maintenance of the air conditioning system. Maintenance costs can be reduced.

In addition, by installing a trunk-type intake filter inside the outside air intake chamber, it can occupy a smaller space than the conventional wall-type filter unit, and a plurality of filter members are installed on each of the three walls to be the same or similar to the conventional filter unit. performance can be realized.

In addition, a protective means is coupled to the lower end of the base support communicating with the connection duct to prevent foreign matter contained in the air in the outside air intake chamber from entering the connection duct during the operation of the air conditioning system, thereby protecting the engine. can do.

In addition, as a plurality of filter members are coupled to the filter frame formed on the wall of the filter casing, maintenance work can be easily performed from the outside of the suction filter unit.

In addition, by designing a silencer unit according to the size of the connection duct unit and installing a duct type silencer unit on the connection duct unit, it is possible to freely form an outside air intake structure.

In addition, a silencer unit is provided in the connection duct to minimize the possibility of cracks due to vibration, and it is easy to replace the sound absorbing member when it is damaged due to its compact size compared to the conventional silencer installed on the deck inside the air intake room. can do.

1 is a diagram schematically showing an air conditioning system for a ship for polar regions according to the prior art.
2 is a diagram schematically illustrating an air conditioning system for a ship for polar regions according to an embodiment of the present invention.
FIG. 3 is a schematic view of a plan view of the suction filter unit shown in FIG. 2 .
Figure 4 is a front view of Figure 3;
FIG. 5 is a diagram schematically illustrating protection means provided in area “A” of FIG. 3 .
FIG. 6 is an enlarged view of region “B” of FIG. 3 .
7 is a schematic plan view of the silencer unit shown in FIG. 2;
FIG. 8 is a view showing a cross section taken along line CC of FIG. 7 .
9 is a cross-sectional view taken along line DD of FIG. 7 .
10 is a diagram showing an air conditioning system for a polar ship according to an embodiment of the present invention in comparison with the prior art.

In order to fully understand the present invention and its operational advantages and objectives achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings.

In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted. Preferred embodiments of the present invention will be described below, but the technical spirit of the present invention is not limited or limited thereto and can be modified and implemented in various ways by those skilled in the art, of course.

2 is a diagram schematically showing an air conditioning system for a polar vessel according to an embodiment of the present invention, and FIGS. 3 and 4 are schematic views of a suction filter unit in the air conditioning system for a polar vessel according to an embodiment of the present invention. It is a plan view and a front view, respectively.

In addition, FIG. 5 is an enlarged view of area “A” of FIG. 3, and FIG. 6 is a view showing the protecting means shown in FIG. 3 in a separated manner.

Referring to FIG. 2 , the air conditioning system of a ship for polar regions according to an embodiment of the present invention flows in through an engine room 100 provided inside the hull and an outside air inlet 111 at the top of the engine room 100. An outside air intake chamber 110 for directly supplying the outside air to the engine GE provided inside the engine room 100, and installed inside the outside air intake chamber 110 and included in the air inside the intake chamber unit 130 It may include a suction filter unit 130 for removing foreign substances, and a connection duct unit 150 connecting the intake filter unit 130 and the engine GE.

In this embodiment, the engine GE may be a generator engine (main generator engine) that generates power required by the ship, and it may be preferable that one or more engines are provided inside the engine room 100 .

The outside air intake chamber 110 is provided on the upper part of the engine room 100 to directly supply low-temperature outside air to the engine GE provided inside the engine room 100, and at least one of the stern or left and right side walls has a low temperature An outside air inlet 111 through which outside air is introduced may be provided.

The outdoor air intake chamber 110 of this embodiment includes a water remover 113 installed on the outdoor air intake 111 to remove moisture contained in the outdoor air introduced through the outdoor air intake 111, and the outdoor air intake 111. A suction port cover (Scuttle) 115 installed on an outer wall of the outside air suction chamber 110 in which the outside air suction port 111 is installed may be further included to prevent snow from sticking or freezing.

The intake filter unit 130 may be provided in a trunk type installed on a deck inside the outside air intake chamber 110 .

Specifically, as shown in FIGS. 3 and 4 , the intake filter unit 130 of this embodiment includes a base support 131 installed on the deck of the outside air intake chamber 110 and the base support 131 It may include a filter casing 133 formed to surround and a plurality of filter members 135 coupled to a filter frame 133a provided on a wall surface of the filter casing 133 .

The base support 131 may be installed on the deck of the outside air intake chamber 110 to have a cylindrical shape, and may communicate with a connection duct unit 150 to be described later.

The filter casing 133 is formed to surround the base support 131 and may have a rectangular cube shape.

In this embodiment, a manhole-type entry door (MH) may be installed on one side wall of the filter casing 133 for a worker to enter (or access) the intake filter unit 130, and one side A filter frame 133a for combining a plurality of filter members 135 may be provided on the remaining wall surface except for the wall surface.

That is, in the suction filter unit 130 of this embodiment, a plurality of filter members 135 may be coupled to the remaining walls, that is, each of the three surfaces except for one side wall of the filter casing 133 having a rectangular cube shape.

The suction filter unit 130 of this embodiment may further include filter fixing means 137 for fixing the plurality of filter members 135 .

The filter fixing means 137 is for fixing the plurality of filter members 135 to the filter frame 133a, and as shown in FIG. 5, a stud 137a vertically installed on one surface of the filter frame 133a. ), a fixing nut 137b fastened to the thread formed on the outer circumferential surface of the stud 137a, and a fixing pad 137c inserted into the stud 137a and positioned between the filter frame 133a and the fixing nut 137b. can include

Although not shown in the drawing, the filter fixing means 137 of this embodiment forms a plurality of bolt insertion holes (not shown) on one surface of the filter frame 133a, and replaces the stud 137a and the fixing nut 137b. Thus, of course, a single bolt may be used.

The filter fixing pad 137c may be positioned between the filter frame 133a and the filter fixing nut 137b by being inserted into the stud 137a prior to fastening the filter fixing nut 137b to the outer circumferential surface of the stud 137a. , It can play a role in preventing loosening of the filter fixing nut 137b due to vibration generated when outside air is sucked in.

In the air conditioning system of a polar vessel according to the prior art, a filter housing is installed on one side wall of an air intake room 7 for inhaling outside air, and a plurality of filters are all installed in one direction inside the filter housing to face a wall type. (Wall type).

In other words, the conventional filter unit 9 is in the form of a package in which a plurality of filters are coupled to the inside of the filter housing, and as the plurality of filters are all installed facing one direction, the filter housing has a considerable size.

In the engine room air conditioning system of a polar vessel according to an embodiment of the present invention, a trunk-type intake filter unit 130 is installed inside the outside air intake chamber 110, and the space is smaller than that of the conventional wall-type filter unit 9. , and a plurality of filter members 135 are installed on each of the three walls to realize the same or similar performance as the conventional filter unit 9.

In addition, the conventional filter unit 9 requires a large space due to the considerable size of the filter housing, and access to the corresponding area (in particular, the upper part) is difficult when problems such as freezing or clogging of the filter due to low-temperature outdoor air occur. Although it is not easy and there is difficulty in maintenance work, the intake filter unit 130 of this embodiment is provided in a trunk type that is smaller in size (or lower in height) than the conventional filter unit 9, and the filter member 135 Replacement of the filter member 135 due to clogging may be facilitated.

The suction filter unit 130 of this embodiment may further include a protective means 139 coupled to the lower end of the base support 131 to prevent foreign substances from entering the connection duct unit 150 to be described later. .

The protection means 139 is coupled to the lower end of the base support 131 communicating with the connection duct unit 150, so that foreign substances contained in the air in the outside air intake chamber 110 during the operation of the air conditioning system are removed from the connection duct unit ( 150) It can play a role of protecting the engine GE by preventing it from entering the inside.

The protective means 139 of this embodiment is, specifically, a pair of ring frames 139a having a diameter corresponding to the lower end of the base support 131 and a mesh member provided between the pair of ring frames 139a. (139b).

In this embodiment, the pair of ring frames 139a may be coupled to the lower edge of the base support 131 by welding or bolting in a state in which the mesh member 139b is coupled therebetween.

In the conventional filter unit 9, as a plurality of filters are installed inside the air intake chamber 7, a worker must enter the air intake chamber 7 during maintenance work such as filter installation or replacement. Fastening means (bolts, nuts, gaskets, etc.) used during the installation or replacement process may fall into the intake duct 8 and cause damage to the engine 6.

Unlike the prior art, in the suction filter unit 130 of this embodiment, a plurality of filter members 135 are coupled to the outside of the filter casing 133, that is, on the filter frame 133a formed on the wall surface of the filter casing 133a. Accordingly, maintenance work can be easily performed outside the suction filter unit 130.

In particular, a protective means 139 including a mesh member 139a is provided at the lower end of the base support 131 communicating with the connection duct unit 150 so that foreign substances such as bolts, nuts, and gaskets are prevented from connecting the duct unit 150. ) can prevent the inflow into the interior in advance.

The protection means 139 of this embodiment is installed on one of the pair of ring frames 139a coupled to the lower end of the base support 131 to prevent the mesh member 139b from being separated or sagging. (139c) may be further included.

In this embodiment, the support portion 139c may be formed in the form of a bar having a circular cross section, and is attached to the ring frame 139a positioned below the mesh member 139b among the pair of ring frames 139a. Spaced apart in one direction on the plural may be installed.

3 and 4, the unexplained symbol 'L1' is a lifting lug (L1) for lifting the intake filter unit 130 using a separate crane during initial installation or maintenance of the intake filter unit 130. As such, a plurality of lifting lugs L1 may be provided at the upper end of the base support 131 or the filter casing 133, and may be integrally formed with the suction filter unit 130 through a welding method.

The connection duct unit 150 connects the intake filter unit 130 and the engine GE inside the engine room 100 to supply outside air sucked into the intake filter unit 130 to the engine GE. It can be made of a material (SUS, etc.) that is resistant to low temperatures so that it can withstand a cryogenic environment.

7 is a schematic plan view of a silencer unit in an air conditioning system for a polar vessel according to an embodiment of the present invention, and FIG. 8 is a cross-sectional view of the silencer unit taken along line BB' of FIG. 7 9 is a cross-sectional view of the silencer unit along the line C-C' of FIG.

The ship's air conditioning system according to an embodiment of the present invention may further include a silencer unit 170 for reducing noise generated when outside air is sucked into the outside air intake chamber 110 .

As shown in FIGS. 7 to 9 , the silencer unit 170 includes a silencer housing 171, a connection support 173 provided on one side of the outer surface of the silencer housing 171, and the inside of the silencer housing 171. It may include a sound absorbing member 175 to minimize noise generated when inhaling outside air.

As shown in FIGS. 7 to 9, the silencer housing 171 is formed in a housing body 171a provided in the form of a square pillar having a rectangular planar shape and upper and lower portions of the housing body 171a, respectively. It may include an end flange 171b.

The silencer housing 171 of this embodiment may be interconnected with the connection duct unit 150 through end flanges 171b formed on the upper and lower portions of the housing body 171a.

In this embodiment, the silencer housing 171 may be designed to have a size corresponding to the size (or cross-sectional area) of the connection duct part 150, and one at the top and bottom of the connection duct part 150, respectively. Over-installation may be desirable.

Here, the end flange 171b of the silencer housing 171 and the connection duct 150 may be flange-coupled through a known welding or bolting method.

The connection support 173 serves to fix the silencer housing 171 to the inner wall of the structure in the upper part of the engine room 100, and one side of the housing body 171a so that the silencer housing 171 can be stably fixed. It may be desirable to form one or more in

It is natural that the connection support 173 of this embodiment is coupled to the outer surface of the silencer housing 171, more specifically, the housing body 171a by welding and integrally formed with the silencer housing 171.

As described above, even in the air conditioning system according to the prior art, the silencer 10 is installed to reduce the noise generated during the outside air intake process, but the conventional silencer 10 is supplied by an engine company (MAN, Wartsila, etc.) As an off-the-shelf product, it is provided in a deck-mounted type and can be mounted on the inner deck of the air intake chamber 7 according to the engine company's guidance.

However, in the air conditioning system of a polar ship according to the prior art, as the silencer 10 is installed on the deck inside the air intake room 7, the vibration transmitted from the deck or the filter unit 9 access platform (unsigned) As a result, damage such as cracks may occur frequently.

In addition, a large space was required as a trunk structure communicating with the connection duct was formed according to the size of the large silencer 10 supplied by the engine company, and due to the considerable size of the silencer 10, replacement work in case of damage There is a problem with this not easy.

In the air conditioning system of a polar vessel according to an embodiment of the present invention, the silencer unit 170 is designed according to the size of the connection duct unit 150, and the silencer unit 170 is installed on the connection duct unit 150. In other words, by providing the silencer unit 170 in a duct type, it is possible to freely form an outside air intake structure.

In addition, the silencer unit 170 of this embodiment, unlike the prior art installed on the deck inside the air intake chamber 7, is provided in the connection duct unit 150 to minimize the possibility of cracks due to vibration, as well as , When the sound absorbing member 175 is damaged due to its compact size compared to the conventional silencer 10, it can be easily replaced.

The sound absorbing member 175 is formed long along the longitudinal direction of the silencer housing 171 and is formed in the form of a baffle, and a plurality of sound absorbing members may be spaced apart from each other at regular intervals inside the silencer housing 171.

The silencer unit 170 of this embodiment may further include a heat insulation unit 177 installed on an outer side surface of the silencer housing 171 .

In this embodiment, the heat insulator 177 may be formed by attaching or applying a heat insulating material such as glass cloth on a plate through which a plurality of holes are formed, that is, a perforated plate.

On one side of the outer wall of the silencer housing 171, a lug 179 for transporting the silencer unit 170 to the outside or inside during initial installation or replacement work on the connection duct part 150 may be installed. ,

The transfer lug 179, similar to the lifting lug L1 of the intake filter unit 130, may be integrally formed with the silencer housing 171 through a welding method, and a plurality of lugs are formed on one side of the outer wall of the housing body 171a. It may be desirable to be provided.

On the other hand, the air conditioning system of a ship for polar regions according to an embodiment of the present invention, apart from the configuration of directly supplying outside air to the engine GE inside the engine room 100 through the outside air intake chamber 110, Outside air may be heated and supplied to the inside of the engine room 100 .

The air conditioning system of a polar vessel according to an embodiment of the present invention may further include an outside air heating chamber 190 provided separately from the outside air intake chamber 110 to heat the outside air introduced into the inside.

The outside air heating chamber 190 is provided on the bow side of the outside air intake chamber 110 to heat the outside air or mix the inside air, and heats the outside air introduced into the outside air heating chamber 190 and then heats the high-temperature air. can be supplied to areas in need.

The outdoor air heating chamber 190 of this embodiment is, specifically, a heater unit 191 for heating the low-temperature outdoor air introduced into the inside, and for supplying high-temperature air heated through the heater unit 191 to a required area. A fan unit 193 may be included.

In this embodiment, the air heated by the heater unit 191 may have a temperature between 3 °C and 7 °C, and may preferably be maintained at about 5 °C.

It may be preferable that at least one heater unit 191 and fan unit 193 of this embodiment be provided inside the outdoor heating chamber 190 .

The configuration of heating low-temperature outdoor air through heat exchange with the heater unit 191 or thermal oil of this embodiment is a well-known technical matter in the prior art, and a detailed description thereof will be omitted.

10 is a view showing an air conditioning system for a polar vessel according to an embodiment of the present invention compared with the prior art, and FIG. 10 (a) shows an outside air intake structure of the air conditioning system for a polar vessel according to the prior art. 10(b) is a diagram showing an outside air intake structure of an air conditioning system for a ship for polar regions according to an embodiment of the present invention.

In the air conditioning system of a polar ship according to the prior art, a filter unit (9) is installed on one side wall of an air intake room (7) for inhaling outside air, and a silencer (10) is installed on the deck inside the air intake room (7). ) is installed, and on the intake duct (8) connecting the air intake chamber (7) and the engine (6), a control damper (11) for controlling the flow direction of air in the intake duct (8) is installed

As described above, the conventional filter unit 9 is provided in a wall type in which a plurality of filters are all installed in one direction inside the filter housing, but due to the filter housing having a considerable size, relatively It requires a lot of space.

In addition, the conventional silencer 10 is an off-the-shelf product supplied by engine companies (MAN, Wartsila, etc.), and is provided in a deck-mounted type according to the engine company's guidance. Although it is mounted on the inner deck, damage such as cracks may frequently occur due to vibration transmitted from the deck inside the air intake chamber (7) or a platform (unsigned) for access to the filter unit (9). there is.

In the air conditioning system of a ship for polar regions according to an embodiment of the present invention, a trunk-type intake filter unit 130 is installed inside the outside air intake chamber 110 to save a space smaller than that of a conventional wall-type filter unit 9. and a plurality of filter members 135 are installed on each of the three walls to realize the same or similar performance as the conventional filter unit 9.

In addition, the suction filter unit 110 of this embodiment is modified in such a way that a plurality of filter members are combined from the outside, so that convenience in installing or replacing the filter member can be provided, and communication with the connection duct unit 150 can be provided. The protective means 139 is coupled to the lower end of the base support 131 to prevent foreign substances contained in the air in the outside air intake chamber 110 from entering the connection duct 150 during the operation of the air conditioning system, thereby preventing the engine from entering. (GE) can be protected.

In addition, by designing the silencer unit 170 according to the size of the connection duct part 150 and installing the silencer unit 170 on the connection duct part 150, the silencer unit 170 of the duct type Due to this, it is possible to freely form an outside air intake structure.

In addition, the silencer unit 170 of this embodiment is installed on the connection duct unit 150, unlike the prior art installed on the deck inside the air intake chamber 7, to minimize the possibility of cracks due to vibration. In addition, when the sound absorbing member 175 is damaged due to its compact size compared to the conventional silencer 10, it may be easily replaced.

The above description is merely an example of the technical idea of the present invention, and those skilled in the art can make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. will be.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. .

In addition, the protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

100: Engine room
110: outside air intake chamber
111: outside air inlet
113: Water catcher
115: intake cover (Scuttle)
130: intake filter unit
131: base support
133: filter casing
135: filter member
137: filter fixing means
139: protection
150: connection duct part
170: silencer unit
171: silencer housing
173: connection support
175: sound absorbing member (Baffle)
177: insulation
179: transport lug
190: outdoor heating chamber
191: heater unit
193: fan unit
GE: Engine (Main generator engine)
MH: Manhole
L1: Lifting lug

Claims (12)

As an air conditioning system for ships operating in polar waters,
An engine room provided on the hull and equipped with a generator engine therein;
an outside air intake chamber for inhaling low-temperature outside air through an outside air intake at an upper portion of the engine room;
a suction filter unit for removing foreign substances contained in the air inside the outside air intake chamber; and
An outside air heating chamber provided separately from the outside air intake chamber to heat the outside air introduced into the inside,
The intake filter unit is provided in a trunk type installed on a deck inside the outside air intake chamber. According to claim 1,
The outdoor heating chamber,
A heater unit for heating low-temperature outdoor air introduced into the interior; and
An air conditioning system for a ship for polar regions including a fan unit supplying outside air heated by the heater unit to the inside of the hull. According to claim 2,
At least one of the heater unit and the fan unit is provided inside the outdoor heating chamber. According to claim 1,
a connection duct unit connecting the intake filter unit and the generator engine; and
The air conditioning system of a polar vessel further comprising a silencer unit for reducing noise generated when external air is sucked into the external air intake chamber. According to claim 4,
The silencer unit is fixed to the wall surface of the upper structure of the engine room at the lower part of the outside air intake chamber and is provided in a duct type. According to claim 4,
The silencer unit,
A silencer housing having a rectangular planar shape and provided in a pillar shape;
a connection support provided on one side of an outer surface of the silencer housing; and
An air conditioning system for polar vessels comprising a sound absorbing member provided inside the silencer housing to reduce noise generated when outside air is sucked in. According to claim 6,
The sound absorbing member is formed elongated along the longitudinal direction of the silencer housing and is provided in the form of a baffle, and a plurality of sound absorbing members are spaced apart from each other at regular intervals inside the silencer housing. According to claim 4,
The intake filter unit is provided in a trunk type installed on a deck inside the outside air intake chamber. According to claim 8,
The intake filter unit,
a base support installed on the deck of the outside air intake chamber and communicating with the connection duct;
a filter casing having a rectangular cube shape and surrounding the base support; and
An air conditioning system for a polar vessel comprising a plurality of filter members coupled to a filter frame provided on a wall surface of the filter casing. According to claim 9,
The filter frame is formed on the other three walls except for one side wall of the filter casing. As an outdoor air intake structure for a polar vessel for directly supplying low-temperature outdoor air to a generator engine installed inside an engine room in a vessel operating in polar waters,
an outside air intake chamber for inhaling low-temperature outside air through an outside air intake at an upper portion of the engine room;
a suction filter unit for removing foreign substances contained in the air inside the outside air intake chamber; and
A connection duct part connecting the intake filter part and the generator engine,
The outside air intake structure of the polar vessel provided in a trunk type installed on the deck inside the outside air intake chamber. According to claim 11,
The intake filter unit,
An outdoor air intake structure of a polar vessel including a protection means for preventing foreign substances from entering the connection duct and damaging the generator engine.

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