JP2006015933A - Air supply facility structure or air exhaust facility structure of ventilation facility of automobile carrying vessel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air supply facility structure or an air exhaust facility structure of a ventilation facility capable of making facility costs and running costs less than conventional, properly securing dispersion of a wind volume onto each vehicle loading deck, without directly blowing ventilation wind to a loaded vehicle, and mounting an air supply and exhaust duct in an earlier step than conventional in rigging a ship. <P>SOLUTION: This air supply facility structure or an air exhaust facility structure of a ventilation facility of an automobile carrying vessel is sequentially communicated with an outside air intake port, an air intake duct, and a blower positioned at the upper part of an exposed deck, and an air supply and exhaust duct positioned below the exposed deck in this order. The outside air is supplied to each of vehicle loading decks through a plurality of layers of vehicle loading decks, or air supply and exhaust ducts for exhausting the air after ventilation are separated from each other between the respective vehicle loading decks at a predetermined separation interval. The sectional dimension of the separated air supply and exhaust duct is sequentially squeezed as going from an upper layer to a lower layer. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a supply facility structure or an exhaust facility structure of a ventilation facility for ventilating a cargo compartment of an automobile carrier ship having a multi-layer vehicle loading deck.

  In an automobile carrier ship having a multi-layered vehicle loading deck represented by a roll-on / roll-off ship (so-called RORO ship), not only when loading and unloading the vehicle, but also during operation, workers and drivers frequently Often enters the cargo compartment where is loaded. Therefore, ventilation equipment for ventilating the cargo compartment formed on the multi-layer vehicle loading deck is an indispensable equipment for such a car carrier.

  The air supply equipment structure, which is the main component of the ventilation equipment for ventilating the cargo compartment formed on the multi-layer vehicle loading deck, has conventionally been configured as shown in FIG. FIG. 2 is a cross-sectional configuration diagram of the air supply facility structure of the automobile carrier in the conventional example, and the air supply facility structure of the automobile carrier in the conventional example will be described below.

  In FIG. 2, the air supply facility structure 20 includes an intake duct 42, a blower 44 connected to the lower end of the intake duct 42, and an air supply duct 46 connected to the lower end of the blower 44. An outside air intake 50 is disposed at the upper part of the air supply equipment structure 20, that is, the upper part of the intake duct 42, and the outside air intake 50 is provided with a ventilation duct cover 52, an intake duct lid 54, and an intake duct. A lid opening / closing handle 56 and an intake duct lid opening / closing bolt 58 are included.

As shown in FIG. 2, the car carrier in this example has a five-layer vehicle loading deck in the ship, and the five-layer vehicle loading deck 60 includes an exposed deck 61, a first deck 62, 2, a third deck 64, and a fourth deck 65. The air supply duct 46 has an exposed deck 61, a first deck 62, a second deck 63, and a third deck 64. Through the vertical direction to reach the fourth deck 65.
.. Are arranged at the positions of the vehicle loading decks inside the air supply duct 46, and are arranged at the positions of the vehicle loading decks on the outer peripheral surface of the air supply duct 46. Air supply ports 48a, 48b, 48c, and 48d are formed.

  Further, the lower end of the intake duct 42 and the upper end of the blower 44, the lower end of the blower 44 and the upper end of the air supply duct 46 are connected by a flange joint, and the air supply duct 46 and the exposed deck 61, the first deck 62, and the second deck are connected. 63 and the third deck 64 are welded, and the lower end of the air supply duct 46 is also welded to the fourth deck 65.

The projection figure of the ventilation duct cover 52 that constitutes the outside air intake port 50 located at the upper part of the air supply equipment structure 20 is similar to the projection figure of the intake duct 42 and is formed to be slightly larger and has a predetermined width at the periphery thereof. The upper end portion of the intake duct 42 is completely covered. An intake duct cover 54 is interposed between the upper end of the intake duct 42 and the ventilation duct cover 52, and an intake duct cover opening / closing bolt 58 rotates upward in the center of the intake duct cover 54. The intake duct lid opening / closing bolt 58 passes through the central portion of the ventilation duct cover 52 and is connected to the intake duct lid opening / closing handle 56.
The outside air intake 50 has a role of preventing seawater from entering the air supply equipment structure 20 in a stormy weather or the like, in addition to the original role of “taking in outside air”. That is, normally, the upper end of the intake duct 42 and the intake duct lid 54 are separated from each other, and the outside air can be taken in from the intake duct 42. However, there is a possibility that seawater may enter the air supply equipment structure 20 during stormy weather or the like. In some cases, the intake duct lid opening / closing handle 56 is rotated to push down the intake duct lid 54 so that the intake duct lid 54 is brought into close contact with the upper end of the intake duct 42 to block the outside air from flowing through the intake duct 42. It is supposed to be.

When the blower 44 is activated, outside air flows in from the intake duct 42 in a flow as indicated by an arrow c, and is sent downward in the air supply duct 46 as indicated by an arrow d1. And since the lower part of the louver of the ventilation variable louver 38 located substantially at the same level as the first deck 62 is directed toward the air supply port 48a, a part of the outside air sent downward is variable in the ventilation variable louver. The 38 louvers are supplied into the first deck 62 from the air supply port 48a as indicated by an arrow e, and the remaining outside air is further sent downward as indicated by an arrow d2.
Similarly, the outside air sent downward is supplied from the air supply port 48b into the second deck 62, from the air supply port 48c into the third deck 63, and from the air supply port 48d to the fourth deck 64, respectively. It is supplied to the inside. Here, the number of arrows in arrow d1, arrow d2, arrow d3, and arrow d4 represents the air volume of the sent outside air, and indicates that the air volume decreases as it goes downward.

  Note that the opening areas of the air supply ports 48a, 48b, 48c, and 48d become smaller toward the lower side. And the supply amount of the external air to the 1st deck 62, the 2nd deck 63, the 3rd deck 64, and the 4th deck 65 is adjusted by operating the ventilation variable louver 38,38, .... Be able to.

  In this way, fresh outside air taken in from the outside air intake 50 is supplied from the supply ports 48a, 48b, 48c, and 48d to the first deck 62, the second deck 63, the third deck 64, and the fourth deck. After being blown into the deck 65 in the horizontal direction as shown by an arrow e and circulated in the cargo compartment while hitting the loaded vehicles 70, 70,..., The outside is discharged from an exhaust port provided at an appropriate position in the cargo compartment. To be released.

As an invention relating to a reduction in equipment cost and operating cost of ventilation equipment installed in a ship, there is an invention described in Japanese Patent Application Laid-Open No. 11-334697.
The invention described in Japanese Patent Application Laid-Open No. 11-334697 is an invention aimed at reducing the equipment cost and operating cost of a ductless air conditioner for air-conditioning a living section of a ship, and the outside air is used as a passage and a living room in the living section. The air conditioner for ships that incorporates the air into the ship and is equipped with a hot water heater that overheats the refrigerant that exchanges heat with the outside air by using the heat of the engine room. The above-mentioned problem is solved by using a vent trunk space that penetrates through the respective decks of the living section in which the passage and the living room are provided, opens upward to the upper deck and communicates with the passage of each deck.
Japanese Patent Laid-Open No. 11-334697

However, in the air supply facility structure of the cargo section of the automobile carrier in the conventional example, the air supply duct penetrating the multilayer deck is integrated, and the amount of outside air flowing through the air supply duct decreases as it goes downward. Nevertheless, the cross-sectional area was the same, and when installing, the air supply duct could not be installed unless all the multi-layer vehicle loading decks had been installed.
In addition, the amount of outside air supplied to each vehicle loading deck is adjusted according to the size of the ventilation variable louver installed in the exhaust duct and the size of the air supply port, so not only a delicate adjustment method is required, Since it works so as to hinder the flow of outside air flowing through the air supply duct, it acts as a load on the blower, leading to an increase in operating costs.
The air supply port is attached perpendicularly to the air supply duct, and the outflow direction of the outside air supplied to each vehicle loading deck is also horizontal, so that the outside air containing seawater salt is directly loaded. In the case of a vehicle, there is also a risk of reducing the commercial value of the loaded vehicle.

  In addition, the invention described in Japanese Patent Application Laid-Open No. 11-334697 is an air conditioner for the interior of a ship, and is a ventilation apparatus that also includes air conditioning. On the other hand, when it is set as the ventilation apparatus in a division, an increase in an installation cost and an operating cost will be caused compared with the air supply installation structure of the conventional ventilation installation shown in FIG.

  Therefore, the present invention can reduce the equipment cost and the operation cost lower than the conventional one, and the cross-sectional area of the air supply / exhaust duct is proportional to the amount of air flowing in the air supply / exhaust duct. The air flow distribution to the air flow is appropriate without making the fine adjustments required for a conventional ventilation system with an air supply equipment structure. It is an object of the present invention to provide an air supply facility structure or an exhaust facility structure of a ventilation system of an automobile carrier ship, in which outside air containing salty seawater does not directly hit a loaded vehicle.

In order to achieve the above object, the air supply facility structure or the exhaust facility structure of the ventilation system of the car carrier according to the invention of claim 1 of the present invention includes a first deck, a second deck, etc. in order below the exposed deck. In a ventilation facility for ventilating a cargo compartment of a car carrier having a multi-layer vehicle loading deck composed of an (n-2) th deck, an (n-1) th deck, and an nth deck (n ≧ 3) The ventilation facility comprises an air supply facility and an exhaust facility having the same structure, and the air supply facility and the exhaust facility are interchangeable supply / exhaust facilities, wherein the supply / exhaust facility is the exposure An intake duct installed on the deck, a blower connected to the lower end of the intake duct, and an air supply / exhaust duct connected to the lower end of the blower and penetrating through the multi-layer vehicle loading deck. Is the multi-layer vehicle loading deck , The first air supply / exhaust duct penetrating the exposed deck, the second air supply / exhaust duct penetrating the first deck,..., (N-2) The (n-1) th air supply / exhaust duct penetrating the deck (n) and the nth air supply / exhaust duct (n ≧ 3) penetrating the (n-1) th deck are formed. The lower end of the exhaust duct is disposed apart from the nth deck, the first air supply / exhaust duct, the second air supply / exhaust duct, ..., the (n-1) th air supply / exhaust duct, and The cross-sectional figures of the n-th air supply / exhaust duct are substantially similar to each other, the cross-sectional area of the first air supply / exhaust duct is larger than the cross-sectional area of the second air supply / exhaust duct, and the first The projected graphic of the air supply / exhaust duct encompasses the projected graphic of the second supply / exhaust duct, and the (n− ) Is larger than the cross-sectional area of the nth supply / exhaust duct, and the projection pattern of the (n-1) th supply / exhaust duct is the projection of the nth supply / exhaust duct. It is characterized by containing figures.
An air supply facility structure or an exhaust facility structure of a ventilation facility for an automobile carrier according to claim 2 of the present invention is the air supply facility structure or exhaust structure of the ventilation facility of an automobile carrier according to claim 1 of the present invention. The first air supply / exhaust duct, the second air supply / exhaust duct,..., The (n-1) th air supply / exhaust duct, and the lower end of the nth air supply / exhaust duct are connected to the first deck, the first 2 decks, ..., the (n-1) th deck, and the nth deck.
An air supply facility structure or an exhaust facility structure of a ventilation facility for an automobile carrier according to the invention of claim 3 is an air supply facility structure or an exhaust facility of an automobile carrier according to claim 1 or claim 2 of the present application. In the structure, at least one of the projected figures of the first air supply / exhaust duct, the second air supply / exhaust duct,..., The (n-1) th air supply / exhaust duct, and the nth air supply / exhaust duct. One location is in contact with the opening peripheral edge of the second air supply / exhaust duct,..., The (n-1) th air supply / exhaust duct, and the opening at the upper end of the nth air supply / exhaust duct. A feature is that air supply / exhaust lead-in / out feathers having a predetermined width are provided obliquely upward toward the inside of the opening.
Furthermore, the air supply facility structure or exhaust system structure of the ventilation system of the automobile carrier according to the invention of claim 4 is the air supply system structure or exhaust system of the ventilation system of the vehicle carrier according to claims 1 to 3 of the present application. In the structure, cross sections of the first air supply / exhaust duct, the second air supply / exhaust duct, ..., the (n-1) th air supply / exhaust duct and the nth air supply / exhaust duct are circular or square. It is characterized by.
In addition, an air supply facility structure or an exhaust facility structure of a ventilation facility of an automobile carrier according to the invention of claim 5 is an air supply facility structure or an exhaust facility of an automobile carrier according to claims 1 to 4 of the present application. In the structure, the first air supply / exhaust duct, the second air supply / exhaust duct,..., The (n-1) th air supply / exhaust duct, and the nth air supply / exhaust duct are used for air volume adjustment. A variable louver is provided.

As described above, according to the invention according to claim 1 of the present application, except for the structure of the air supply / exhaust duct itself, it is the same as the conventional air supply equipment structure, and the air supply port required by the conventional ventilation equipment structure is unnecessary. Therefore, the equipment cost is lower than that of the conventional ventilation equipment structure.
In addition, the ventilation facility of the present invention is composed of an air supply facility and an exhaust facility having the same structure, and can be switched from the air supply facility to the exhaust facility or from the exhaust facility to the air supply facility. Ventilation efficiency does not change even if it is switched according to the use.

  The (n-2) th air supply / exhaust duct, the (n-1) th air supply / exhaust duct, and the nth air supply / exhaust duct are separated from each other with a predetermined separation distance. The cross-sectional area becomes smaller as it goes from the air supply / exhaust duct located in the upper part to the air supply / exhaust duct located in the lower part, and the projected figure of the air supply / exhaust duct located in the upper part is located in the lower part. Since the projected figure of the air supply / exhaust duct is included, there are the following technical effects.

That is,
(1) Since each separated air supply / exhaust duct has a cross-sectional area corresponding to the amount of air flowing in each air supply / exhaust duct, the air supply / exhaust duct becomes smaller as it goes to the lower layer. This increases the effective area and reduces the amount of steel in the air supply / exhaust duct itself, which contributes to a reduction in equipment costs.
(2) The upper and lower air supply and exhaust ducts adjacent to each other in the upper and lower sides have four protrusions when viewed from the lower air supply and exhaust duct in plan view. The outside air can be supplied uniformly from all sides, or the ventilated air can be taken in from all sides, and the ventilation efficiency becomes high.
(3) When used as an air supply facility, the projected area of the (n-1) th air supply / exhaust duct is S (n-1) and the projected area of the nth air supply / exhaust duct is taken. Since the amount of outside air is proportional to the cross-sectional area since the wind speed (v) is constant, the amount of outside air supplied to the (n−1) th deck is (S (n−1) −Sn) × v. It becomes. Therefore, the amount of outside air supplied to each vehicle loading deck can be calculated very easily, and the air volume distribution to each vehicle loading deck can be reliably performed. In addition, even when it is a case where it is used as an exhaust facility, it is possible to accurately calculate the amount of ventilated air to be discharged.
(4) Also, since the outside air supplied to each vehicle loading deck is supplied to each vehicle loading deck from the location where each air supply / exhaust duct is separated with a predetermined separation distance, no air supply opening is required, Further, since the supplied outside air is blown downward, the outside air is not directly applied to the loaded vehicle, and there is no possibility of reducing the commercial value of the loaded vehicle. Furthermore, the air blowing variable louver required for sending the outside air flowing through the air supply / exhaust duct to the air supply port is unnecessary and the load on the blower does not increase, so that the operating cost is reduced.
(5) At the time of outfitting, since the air supply / exhaust ducts are separated from each other, and the cross section of the air supply / exhaust duct located in the lower part is smaller than the air supply / exhaust duct located in the upper part, Even if not, the air supply / exhaust duct can be attached in the previous step.

  According to the invention of claim 2, the lower end of each air supply / exhaust duct is close to each vehicle loading deck, and when used as an air supply facility, the outside air supplied to each vehicle loading deck is After hitting each vehicle loading deck, the air is blown out into each vehicle loading deck, so that the angle of the supplied outside air is widened and the outside air is evenly distributed in the cargo compartment, and the ventilation efficiency is further improved.

  According to the invention of claim 3 of the present application, since at least one of the projected figures of each air supply / exhaust duct is in contact, the installation position of the air supply / exhaust duct can be set to the corner of the cargo compartment. In addition, the air supply / exhaust ducts are provided at the opening periphery of the opening at the upper end of each air supply / exhaust duct obliquely upward toward the inside of the opening, so that when used as an air supply facility, the air supply / exhaust duct Inside air is smoothly blown out to each vehicle loading deck.

  Furthermore, according to the invention according to claim 4 of the present application, the cross section of each air supply / exhaust duct is circular or square. In the case of a circular shape, the energy loss of the air flowing through the air supply / exhaust duct can be minimized, the load on the blower can be reduced, and the operating cost can be kept low. In addition, when the rectangular shape is used, the air supply / exhaust duct can be accommodated in a planar manner, and a space that is free of waste in a planar manner can be designed.

  Further, according to the invention according to claim 5 of the present application, since the variable louver for adjusting the air volume is arranged inside each air supply / exhaust duct, the outside air supplied to each vehicle loading deck can be adjusted as necessary. The amount can be adjusted, and further, when ventilation is not required on the lower vehicle loading deck, the supply and exhaust duct can be shut off to stop the supply of outside air. The variable louver constituting the present invention is a variable louver that is a constituent element of a conventional air supply facility supply structure or exhaust system structure. “External air flowing in the supply / exhaust duct is allowed to flow out to each vehicle loading deck”. It does not play a role, but is used in the above-mentioned case “when ventilation is not required on the lower vehicle loading deck”.

An embodiment according to the best mode for carrying out the present invention will be described below with reference to FIG. FIG. 1 is a configuration diagram of an air supply facility structure of an automobile carrier according to the present embodiment, and FIG. 1A is a cross-sectional configuration diagram of an air supply facility structure of an automobile carrier according to the present embodiment, FIG. ) Is a projection view of the air supply / exhaust duct as viewed in the direction of arrows BB in FIG.
The embodiment described below mainly relates to the air supply equipment structure. However, since the exhaust equipment structure in the present invention is the same component as the air supply equipment structure, the exhaust equipment structure will be described in detail. Is omitted.

  In FIG. 1, reference numeral 10 denotes an air supply equipment structure according to this embodiment, reference numeral 30 denotes an air supply / exhaust duct, reference numeral 31 denotes a first air supply / exhaust duct, reference numeral 32 denotes a second supply / exhaust duct, and reference numeral 33 denotes a third air supply duct. Reference numeral 34 is a fourth supply / exhaust duct, reference numeral 36 is a supply / exhaust lead-in / out, reference numeral 38 is a ventilation variable louver, reference numeral 42 is an intake duct, reference numeral 44 is a blower, reference numeral 50 is an outside air intake, reference numeral 52 Is a ventilation duct cover, reference numeral 54 is an intake duct lid, reference numeral 56 is an intake duct opening / closing handle, reference numeral 58 is an intake duct opening / closing bolt, reference numeral 60 is a vehicle loading deck, reference numeral 61 is an exposure deck, reference numeral 62 is a first deck, reference numeral Reference numeral 63 denotes a second deck, reference numeral 64 denotes a third deck, reference numeral 65 denotes a fourth deck, and reference numeral 70 denotes a loaded vehicle. In FIG. 1, the same elements as those shown in FIG.

In FIG. 1, the vehicle loading deck of the car carrier is composed of five layers, and the vehicle loading deck 60 includes an exposed deck 61, a first deck 62, a second deck 63, and a third deck in order from the top. It consists of a deck 64 and a fourth deck 65.
The air supply facility structure 10 includes an intake duct 42 located on the exposure deck 61, a blower 44 connected to the lower end of the intake duct 42, and a supply / exhaust duct 30 located below the blower 44. The air supply / exhaust duct 30 is connected to the lower end of the blower 44 and is positioned directly below the first air supply / exhaust duct 31 and the first air supply / exhaust duct 31 fixed to the exposure deck 61 and passing through the exposure deck 61. A second air supply / exhaust duct 32 fixed to the first deck 62 and penetrating the first deck 62, and a second deck 63 fixed to the second deck 63 located immediately below the second air supply / exhaust duct 32. A third air supply / exhaust duct 33 passing through the third air supply duct 33, and a fourth air supply / exhaust duct 34 which is located directly below the third air supply / exhaust duct 33 and is fixed to the third deck 64 and passes through the third deck 64. It is configured.

  The lower end of the first air supply / exhaust duct 31 is close to the first deck 62, while the upper end of the second air supply / exhaust duct 32 is substantially flush with the surface of the first deck 62. The distance between the lower end of the exhaust duct 31 and the upper end of the second air supply / exhaust duct 32 is substantially the same as the distance between the lower end of the first air supply / exhaust duct 31 and the first deck 62, and in this embodiment, 350 mm to 400 mm. The vertical relationship between the lower end of the second air supply / exhaust duct 32 and the upper end of the third air supply / exhaust duct 33, and the vertical direction between the lower end of the third air supply / exhaust duct 33 and the upper end of the fourth air supply / exhaust duct 34. Is the same as the vertical relationship between the lower end of the first air supply / exhaust duct 31 and the upper end of the second air supply / exhaust duct 32, and the lower end of the fourth air supply / exhaust duct 34 is the fourth. The distance from the deck 65 is 350 mm to 400 mm.

  The cross-sectional shape of the air supply / exhaust duct 30 in the present embodiment can be circular as shown on the left of FIG. 1B, or square as shown on the right of FIG. The description will be made mainly in the case where the cross-sectional shape of the air supply / exhaust duct 30 is circular. Needless to say, the cross-sectional shape of the air supply / exhaust duct 30 may be other shapes such as an ellipse or an oval in addition to a circle or a rectangle.

As shown in FIGS. 1A and 1B, the first air supply / exhaust duct 31, the second air supply / exhaust duct 32, the third air supply / exhaust duct 33, and the fourth air supply / exhaust duct 34 are substantially similar. The projected area is as follows: first air supply / exhaust duct 31> second air supply / exhaust duct 32> third air supply / exhaust duct 33> fourth air supply / exhaust duct 34. , The left side is on the same vertical line, and when the air supply and exhaust ducts are projected, the circular left side points coincide. In addition, when the cross-sectional shape of the air supply / exhaust duct 20 is a square, the left side of the projected shape is coincident (see FIG. 1B).
A ventilation variable louver 38 is disposed above each of the first air supply / exhaust duct 31, the second air supply / exhaust duct 32, the third air supply / exhaust duct 33, and the fourth air supply / exhaust duct 34. The air supply / exhaust inlet / outlet blades 36 have their tips directed toward the inside of the opening at the periphery of the circular opening at the upper end of the air supply / exhaust duct 32, the third air supply / exhaust duct 33, and the fourth air supply / exhaust duct 34. It is attached diagonally upward. In addition, when the cross-sectional shape of the air supply / exhaust duct 30 is a square, the air supply / exhaust lead-in / out feathers 36 are attached to three sides other than the left side. Moreover, although the position in each supply / exhaust duct of the ventilation variable louver 38 is made into the upper part in a present Example, of course, it may be in any position.

  Since the configuration and operation of the outside air intake 50 located in the upper part of the air supply facility structure 10 have been described in the conventional air supply facility structure of an automobile carrier, the description thereof will be omitted. When the present embodiment is used as an exhaust equipment structure, the outside air intake 50 and the intake duct 42 play a role of discharging the air after ventilation to the outside, and therefore the outside air outlet 50 and the exhaust duct. Although it should be 42, since it is the same as that of a structure of a prior art even when it is a case where it uses as an exhaust equipment structure, the name and code | symbol of a prior art are used.

When the blower 44 is activated, outside air flows in from the intake duct 42 in a flow as indicated by an arrow c, and is sent downward in the first air supply / exhaust duct 31 as indicated by an arrow d1. The outside air further flows into the second air supply / exhaust duct 32 and is sent downward. However, the projected graphic of the first air supply / exhaust duct 31 protrudes from the projected graphic of the second air supply / exhaust duct 32. Therefore, the outside air corresponding to the protruding portion flows out into the first deck 62. On the other hand, the outside air corresponding to the projected figure of the second air supply / exhaust duct 32 has the air blowing variable louver 38 fully open, that is, the direction of the louver of the air blowing variable louver 38 is vertical, so that the wind speed does not decrease and remains as it is. 2 flows into the second air supply / exhaust duct 32. The same phenomenon occurs when the blown outside air flows from the second air supply / exhaust duct 32 to the third air supply / exhaust duct 33 and from the third air supply / exhaust duct 33 to the fourth air supply / exhaust duct 34. All the outside air generated and sent to the fourth air supply / exhaust duct 34 flows into the fourth deck 65.
When this embodiment is used as an exhaust equipment structure, if the fan (not shown) of the blower 44 is rotated in the reverse direction, the downward arrow d becomes upward, and the ventilation follows the path completely opposite to the above-described path. Later air can be released out of the ship.

Here, the supply amount of outside air flowing out to each vehicle loading deck will be described.
If the cross-sectional areas of the first air supply / exhaust duct 31, the second air supply / exhaust duct 32, the third air supply / exhaust duct 33, and the fourth air supply / exhaust duct 34 are S1, S2, S3, and S4, respectively, Since the air volume per unit area (outside air volume) flowing through the first deck 62, the second deck 63, the third deck 64, and the fourth deck 65 is the same, the amount of the outside air flowing out of the first deck 62, the second deck 63, and the fourth deck 65 is S1-S2. , S2-S3, S3-S4, S4, and if the cross section of each supply / exhaust duct is adjusted so that S1-S2 = S2-S3 = S3-S4 = S4, The supply of outside air is theoretically equal.
In this embodiment, the diameter of the first air supply / exhaust duct 31 is set to 1,100 mm to 1,400 mm, and the diameter of the fourth air supply / exhaust duct 34 is set to 550 mm to 700 mm.

Ventilation variable louvers 38, 38 disposed at the top of each of the first air supply / exhaust duct 31, the second air supply / exhaust duct 32, the third air supply / exhaust duct 33, and the fourth air supply / exhaust duct 34 in this embodiment. .. Are normally fully open, but, for example, when there is no need to blow air to the fourth deck 65, the variable air flow louver 38 disposed at the upper part of the fourth air supply / exhaust duct 34. Is closed, the fourth air supply / exhaust duct 34 is shut off, and the other variable air flow louvers 38, 38 are throttled to some extent, so that the outside air supplied to the first deck 62, the second deck 63, and the third deck 64. Can be made equal.
In addition, the air supply / exhaust lead-in / out wing 36 plays a role of smoothly flowing out to each vehicle loading deck as described above, but unfixed objects such as dust on each vehicle loading deck are inadvertently supplied and exhausted. It also plays a role in preventing falling through the duct to the lower vehicle loading deck.

FIG. 1 is a configuration diagram of an air supply facility structure of an automobile carrier according to an embodiment of the best mode for carrying out the present invention, and FIG. 1 (a) is an air supply facility of the automobile carrier according to this embodiment. FIG. 1B is a sectional view of the structure, and FIG. 1B is a projection view of the air supply / exhaust duct as viewed in the direction of arrows BB in FIG. FIG. 2 is a cross-sectional configuration diagram of an air supply equipment structure of an automobile carrier in a conventional example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Air supply equipment structure which concerns on a present Example 20 Air supply equipment structure which concerns on a prior art example 30 Air supply / exhaust duct 36 Supply / exhaust lead-out inlet 38 Blow variable louver 42 Intake duct 44 Blower 50 Outside air intake 60 Vehicle loading deck

Claims (5)

The first deck, second deck,... (N-2) deck, (n-1) deck, nth deck (n ≧ 3) in order under the exposed deck. In a ventilation facility that ventilates the cargo compartment of a car carrier with a layer of vehicle loading deck,
The ventilation facility comprises an air supply facility and an exhaust facility having the same structure,
The air supply facility and the exhaust facility are a supply / exhaust combined facility that can be switched to each other,
The air supply / exhaust combined facility includes an intake duct installed on the exposed deck,
A blower connected to a lower end of the intake duct;
Consists of a supply / exhaust duct connected to the lower end of the blower and penetrating the multilayered vehicle loading deck,
The air supply / exhaust ducts are separated from each other by a predetermined separation distance between the multilayer vehicle loading decks, and a first air supply / exhaust duct that penetrates the exposed deck and a second air supply duct that penetrates the first deck. An exhaust duct, ..., an (n-1) supply / exhaust duct that passes through the (n-2) th deck, and an nth supply / exhaust duct that passes through the (n-1) th deck ( n ≧ 3) is formed,
The lower end of the nth air supply / exhaust duct is installed apart from the nth deck,
The cross-sectional figures of the first air supply / exhaust duct, the second air supply / exhaust duct, ..., the (n-1) th air supply / exhaust duct, and the nth air supply / exhaust duct are substantially similar to each other. And
The cross-sectional area of the first air supply / exhaust duct is larger than the cross-sectional area of the second air supply / exhaust duct, and the projected graphic of the first air supply / exhaust duct encompasses the projected graphic of the second air supply / exhaust duct. And
The cross-sectional area of the (n-1) th air supply / exhaust duct is larger than the cross-sectional projected area of the nth air supply / exhaust duct, and the projected figure of the (n-1) th air supply / exhaust duct is the nth An air supply facility structure or an exhaust facility structure of a ventilation facility of an automobile carrier ship characterized by including a projected figure of an air supply / exhaust duct.   The first air supply / exhaust duct, the second air supply / exhaust duct, ..., the (n-1) th air supply / exhaust duct, and the lower end of the nth air supply / exhaust duct have the first deck, The air supply of the ventilation equipment of the automobile carrier according to claim 1, wherein the air supply is close to the second deck, ..., the (n-1) th deck, and the nth deck. Equipment structure or exhaust equipment structure.   At least one of the projected figures of the first air supply / exhaust duct, the second air supply / exhaust duct, ..., the (n-1) th air supply / exhaust duct, and the nth air supply / exhaust duct. The second air supply / exhaust duct,..., The (n-1) th air supply / exhaust duct, and the opening periphery of the opening at the upper end of the nth air supply / exhaust duct, The supply / exhaust structure of a ventilation facility for an automobile carrier according to claim 1 or 2, wherein a supply / exhaust inlet / outlet with a predetermined width is provided obliquely upward toward the inside.   The first air supply / exhaust duct, the second air supply / exhaust duct,..., The (n-1) th air supply / exhaust duct, and the nth air supply / exhaust duct have a circular or square cross section. An air supply facility structure or an exhaust facility structure of a ventilation facility for an automobile carrier according to any one of claims 1 to 3.   In the first air supply / exhaust duct, the second air supply / exhaust duct,..., The (n-1) th air supply / exhaust duct, and the nth air supply / exhaust duct have variable louvers for adjusting the air volume. The air supply equipment structure or exhaust equipment structure of the ventilation equipment of an automobile carrier ship according to claim 1, wherein the air supply equipment structure is provided.

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