JP3337443B2 - Laying sewage drainage pipes in ship settlements - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for laying a sewage drainage pipe in a ship accommodation area, and a single penetrating piece for penetrating sewage discharged directly from a toilet of a unit lavatory and sewage flowing on a floor attached to the toilet through a deck. In this way, the work of penetrating the penetrating pieces into the deck, the work of penetrating the deck, and the work of connecting the pipes can be omitted by collectively connecting the pipes.

[0002]

2. Description of the Related Art In order to prevent marine pollution internationally, the international treaty for the prevention of pollution from ships (hereinafter simply referred to as the treaty) is satisfying the conditions for satisfying the enforcement. In some countries, the treaty has already entered into force and is protected by national law, commonly referred to as the Marine Pollution Control Act (hereinafter simply the Prevention Act). Drainage of marine structures (hereinafter referred to as ships) such as ships to which this prevention method is applied is classified into general drainage that can be dumped into the ocean and sewage that is restricted by ocean dumping. Of these, sewage restricted by ocean dumping includes sewage discharged directly from the toilet and sewage discharged from the floor on which the toilet is mounted. The above treaty assumes that sewage flowing on the floor on which the toilet is installed will be mixed with sewage that spills from the toilet due to rocking and pitching movements while the ship is cruising, in addition to general drainage. Judgment is made to limit ocean dumping. Conventionally, drain pipes are laid for a unit lavatory installed in a ship accommodation area, as shown in FIG. That is, the drainage from the unit lavatory a
Sewage d discharged directly from the toilet b using the first drain pipe c
And the sewage g spilled out of the toilet b to the mounting floor e by the rolling or pitching of the vessel and escaping from the toilet floor e and discharged by the second drainage pipe f are individually drained along the upper surface of the deck h. The pipes c and f are laid. Moreover, drain pipes 1 and 2 penetrated into the through-pieces j and k through short tubular first and second through-pieces j and k, which are individually attached to the deck h by performing individual penetrating works or the like. The drain pipes c and f are connected to m to provide individual discharge ports. In the ship to which the prevention method is applied, the sewage d directly discharged from the toilet b and the sewage g spilling from the toilet b flowing on the mounting floor e where the toilet b is installed are separately piped. Is performed and discharged. In FIG. 5, n is a third water pipe for discharging general drainage v from the washstand o and the shower p, and this water pipe n is also a deck h.
Are piped separately from the first and second drain pipes c and f along the upper surface of the pipe, individually penetrated through the deck h, and are attached to the inside of the through-piece q through a short tubular third through-piece q attached thereto. A third drainpipe n for general drainage is connected to a drainpipe r penetrated through the pipe, and an individual outlet is provided. Further, in FIG. 5, s denotes a scapper provided on the mounting floor e on which the toilet b is installed so as to be connected to the second drain pipe f, and the schopper s flows on the mounting floor e of the toilet b. This is for receiving the sewage g or the sewage g which has spilled out of the toilet b due to the sway of the ship or the like and which has flowed through the mounting floor e, and drains it through the drain pipe f. Also, shower combing y is provided so that sewage g does not flow into the floor u of the shower room or the like. T is the floor u of the shower room, etc.
Is provided to be connected to the third drain pipe n, and the scraper t is for receiving general drain water v flowing through a floor u such as a shower room and draining it through the drain pipe n. It is. The sewage d directly discharged from the toilet b is drained through the drain pipe c by applying an appropriate water pressure in which a desired amount is stored in a siphon provided in the toilet b.
Further, sewage g that has flowed down the mounting floor e where the toilet b is installed, or swayed from the toilet b due to the sway of the ship, is received by the scappers s and laid with an appropriate inclination. Is naturally drained through the second drain pipe f.

[0003]

However, as shown in FIG. 5, laying drain pipes for a unit lavatory installed in a ship accommodation area involves sewage d which is directly discharged from the toilet bowl b and the ship is shaken. And the sewage g spilled out from the toilet b to the mounting floor e and discharged separately from the mounting floor e
And drainage pipes c and f laid under the floor u along the upper surface of the deck h. In addition, the deck h
The first and the second through-pieces j and k are attached through the short tubular first and second through-pieces j and k by performing individual through-work and the like, and through the first and second through-pieces j and k. k, the first and second drain pipes c, f
Is to connect. Therefore, laying of the drainage pipe of sewage requires two piping works in the figure. As described above, according to the above-described conventional method, two individual through-pieces j and k penetrate through the deck h for draining sewage and are individually penetrated and mounted on the deck h for fixing. It is necessary to connect individual drain pipes to the through-pieces j and k. When the general drainage v from the washstand o and the shower room is put, a total of three through-pieces j, k, and q are required. As a result, in order to insert and fix these penetrating pieces j, k, q to the deck h, individual penetrating work and mounting work, and further, individual connecting work of drainage pipes to these penetrating pieces j, k, q are performed. The work required for piping is complicated, and requires much time and labor. In addition, many parts are required for laying the drain pipes c, f, and n, and equipment and construction costs are high. The sewage d directly discharged from the toilet b is drained through a drain pipe c by storing a desired amount of water in a siphon provided in the toilet b and applying an appropriate water pressure. On the other hand, it flows on the mounting floor e where the toilet b is installed,
Alternatively, the sewage g which spills from the toilet b to the mounting floor e due to the swaying of the vessel is introduced into the drain pipe f from the scatper s provided on the mounting floor e, and naturally flows down through the slope of the drain pipe f to drain. If the first and second drain pipes c and f are connected in the vicinity of the discharge port, the waste discharged from the toilet b and subjected to the water pressure is attached to the mounting floor provided with the toilet b. There is a possibility that the second drain pipe f for introducing the sewage g flowing through e flows backward.

The present invention solves the above-mentioned conventional inconvenience and consolidates a first drain pipe for directly discharging sewage from a toilet and a second drain pipe for discharging sewage such as flowing on a floor on which the toilet is attached. Simplify the work of laying drainage pipes by connecting to the common penetration piece, and then penetrate the penetration piece to insert and fix it to the deck, attach it to the deck, and connect the drainage pipe to the penetration piece. It provides a method of laying sewage drainage pipes in ship settlements, which is efficient with less time and effort, and does not require many parts for laying drainage pipes, and reduces equipment and construction costs. is there.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a first aspect of the present invention is a method of laying a sewage drainage pipe to be introduced to a unit lavatory installed in a ship's residential area. A first drain pipe for directly discharging sewage from the toilet and a second drain pipe for discharging sewage flowing on the floor attached to the toilet are piped along the upper surface of the deck and provided outside the unit lavatory. By being connected to the upper and lower peripheral side of a single tubular penetration piece provided through the deck near the provided drain port, it is collected outside the unit lavatory and drained to the same drain port,
A means is adopted in which a backflow prevention device is provided outside the unit lavatory of the second drain pipe which is piped between the penetrating piece and the floor of the unit lavatory.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4, a description will be given of an apparatus and a device using an embodiment of a method of laying a sewage drainage pipe to be guided to a unit lavatory installed in a ship settlement according to the present invention. The unit lavatory 1 is installed in the ship occupied area 2, and the sewage 4 from the toilet 3 is supplied to the unit lavatory 1 below or above the mounting floor 5 of the toilet 3 according to the type of unit lavatory (in FIG. A first drain pipe 7 provided along the upper surface of the deck 6 (showing the case above the surface 5)
The sewage 8 spilling out of the toilet 3 to the mounting floor 5 due to agitation such as flowing on the mounting floor 5 of the toilet 3, rolling or pitching of the ship, etc.
Draining using a second drain pipe 10 introduced from a scapper 9 provided on the floor 5 for mounting the shower, and a shower combing 25 provided so that the sewage 8 does not flow into the floor 15 such as the shower room 12. That is, the general drainage 14 from the shower 13 provided in the wash basin 11 and the shower room 12 is supplied by using a third drain pipe 17 introduced from a scapper 16 provided on the floor 15 of the shower room 12. In addition, the first drain pipe 7 and the third drain pipe 17 are provided with peripheral side surfaces 18a, 19a of short tubular through-pieces 18, 19 provided vertically through the deck 6.
Drain pipe 2 inserted into the penetrating pieces 18 and 19
The points connected to 0 and 21 are the same as the method of laying the wastewater drainage pipe introduced to the conventional unit lavatory shown in FIG.

However, in the present embodiment, the first drain pipe 7 for directly discharging the waste water 4 from the toilet 3 and the second drain pipe 10 for discharging the waste water 8 flowing through the floor 5 on which the toilet 3 is mounted are unitized. They are collected outside the lavatory 1 and drained from the same drain port.

In detail, a first drain pipe 7 for directly discharging the waste water 4 from the toilet bowl 3 and a second drain pipe 10 for discharging the waste water 8 flowing through the floor 5 on which the toilet bowl 3 is mounted are formed by the deck 6. It is connected to upper and lower peripheral side surfaces 18a of a single short tubular penetration piece 18 provided along the upper surface and penetrating through the deck 6 near the drain port of the unit lavatory 1.

Reference numeral 30 denotes a backflow prevention device provided in the second drain pipe 10 between the penetrating piece 18 and the unit lavatory 1 outside the unit lavatory 1. The backflow prevention device 30 is shown in FIGS. As shown, a connection port 31a that can be connected to the upstream drain pipe 10a is provided on one side, and a connection port 3 that can be connected to the downstream drain pipe 10b is provided on the other side.
A perforated plate 32 formed of a substantially plate-shaped rigid member is mounted in the valve case 31 provided with the first plate 1b so as to be inclined from the upper section to the lower section with respect to the flowing water direction a. The upper end 33a of the check valve plate 33 is fixed, and the check valve plate 33 always receives the water pressure of flowing water except for the upper end portion 33a of the check valve plate 33, for example, the left and right and lower peripheral portions. Side 33
b, 33b; 33c are provided so as to be able to contact and separate from each other to allow flowing water to pass therethrough.
2, the flow path is closed and the running water is provided so as to be checkable.

The valve case 31 is a unit lavatory 1
Is provided in the drain pipe 10 outside of the device. Further, the valve case 31 is covered with a lid 34 on the upper surface. The lid 34 is entirely or partially formed of a transparent plate so that the inside of the valve case 31 can be seen through, and is detachably attached to the valve case 31. Can be The lid 34 is attached, for example, by screwing. As the transparent plate, for example, an acrylic resin plate or a fluororesin plate is optimally used.

The perforated plate 32 is formed of a rigid member such as a metal or a synthetic resin. When the perforated plate 32 is formed of a metal, for example, a punching metal is used. The diameter of the large number of holes provided in the perforated plate 32 is large enough to allow flowing water to pass therethrough, but large enough to prevent the passage of dirt.

In order to mount the perforated plate 32 in the valve case 31, a substantially U-shaped groove is provided on the inner periphery of the valve case 31 so as to be inclined from the upper side to the lower side with respect to the direction of flow of flowing water. 31c, the left and right and lower peripheral sides 32b, 32b;
By inserting c, the perforated plate 32 is removably attached to the valve case 31.

The check valve plate 33 having flexibility is
For example, neoprene rubber or synthetic resin excellent in corrosion resistance and chemical resistance is used. In order to fix the check valve plate 33 to the perforated plate 32, the upper end portion 33a of the check valve plate 33 is overlapped with the upper end portion 32a of the perforated plate 32, and several places are bolted.
When replacing or repairing parts using the nut 35, the valve case 31 is used.
It is detachably fixed so that it can be attached and detached from outside.

One embodiment of the present invention has the above-described configuration.
Sewage 4 from toilet 3 laid in unit lavatory 1
Performs a work of penetrating a through hole in the deck 6 located below the mounting floor surface 5 of the toilet bowl 3, and penetrates the short piece 18 through the short tubular penetrating piece 18 in the through hole.
8a, for example, one end on the downstream side is connected to the upper peripheral side surface 18a and is laid along the upper surface of the deck 6 at a position below the mounting floor surface 5 (in FIG. 1, above the mounting floor surface 5 for convenience of explanation). A desired amount of water is stored in a siphon provided in the toilet 3 through the first drain pipe 7 and an appropriate water pressure is applied to drain the water through the penetrating piece 18. Further, when the water flows on the floor 5 on which the toilet 3 is mounted, or when the ship sways, such as rolling or pitching, the sewage 8 which spills out of the toilet 3 and flows on the mounting floor 5 is mounted on a skapper 9 provided on the mounting floor 5. A single penetrating piece 18 is laid along the upper surface of the deck 6 below the floor surface 5 and inclined along a second drain pipe 10 having one end connected to a peripheral side surface 18a below the penetrating piece 18. Is drained through.

Thus, the sewage 4 from the toilet 3 and the toilet 3
The sewage 8 flowing on the mounting floor 5 to which the sewage is attached is composed of a first drain pipe 7 and a second drain pipe 10 laid along the upper surface of the deck 6 below the mounting floor 5. Is drained to a sewage tank (not shown) through a single penetrating piece 18 connected to the upper and lower peripheral surfaces 18a, 18a. Therefore, the work of penetrating the penetrating piece 18 to the deck 6, the work of attaching the penetrating piece 18 to the through hole, and the connecting work of the two drainage pipes 7 and 10 to the penetrating piece 18 require a short time and a lot of labor. Only once.

The second drain pipe 10 is provided with a backflow prevention device 30 outside the unit lavatory 1. That is, the backflow prevention device 30 is provided with the second
A connection port 31a that can be connected to the drain pipe 10a on the upstream side of the drain pipe 10 is provided, and a connection port 31b that can be connected to the drain pipe 10b on the downstream side is provided on the other side. A perforated plate 32 made of a substantially plate-shaped rigid member made of punched metal or synthetic resin is attached to the perforated plate 32 at an angle from the cross section upstream to the lower side with respect to the flowing water direction A, for example, neoprene rubber The upper end portion 33a of the check valve plate 33 made of plastic or synthetic resin and having flexibility is fixed using fixing means such as bolts and nuts 35, for example. The valve plate 33 normally receives the water pressure of flowing water, and the other portions of the left and right peripheral sides 33b and 33b and the lower peripheral side 33c are separated from the porous plate 32 except for an upper end portion 33a as a mounting portion of the porous plate 32. By running water Passage of water 8 is allowed. In addition, when the wastewater 8 is backflowing, the check valve plate 33 is superposed on the perforated plate 32 as shown by the solid line in FIG. Therefore, there is no inconvenience that the wastewater 4 from the toilet 3 overflows through the second drain pipe 10 and from the scapper 9 provided on the mounting floor 5 of the toilet 3.

The valve case 31 of the backflow prevention device 30 is provided in the drain pipe 10 outside the unit lavatory 1. The cover portion 34 covered by the valve case 31 is entirely or partially acrylic so that the inside can be seen through. Since it is formed of a transparent plate such as a resin, the open / close state of the check valve plate 33 in the valve case 31 and the flow of the sewage 8 can be checked from the outside. Also, a flexible check valve plate 33 whose upper end 33a is attached to the perforated plate 32 formed of a rigid material by being overlapped, and a bolt / nut 35 for fixing the check valve plate 33 to the perforated plate 32. When replacing or repairing such parts, the cover 34 is first removed from the valve case 31 by, for example, screwing back the set screw N. Then, after removing the perforated plate 32 and the check valve plate 33 from the substantially U-shaped groove 31c provided on the inner peripheral surface of the valve case 31 and inclined downward from the upstream of the cross section with respect to the flow direction of the flowing water, the bolt is removed. -The component can be exchanged for a new one by removing the nut 35.

Furthermore, the sink 11 and the shower room 1
The general drainage 14 from the shower 13 provided in the inside 2 is connected to a penetrating piece 19 which is penetrated and attached to the deck 6 from a skipper 16 provided on the floor surface, and one end is connected to the third piece 19 and laid along the deck 6. Through piece 1 through drain pipe 17
Drained to 9 and drained to sea.

[0019]

According to a first aspect of the present invention, there is provided a method for laying a sewage drainage pipe to be introduced to a unit lavatory installed in a ship accommodation area, and directly discharges sewage from a toilet provided in the unit lavatory. The first drain pipe and the second drain pipe that discharges sewage flowing on the toilet mounting floor are piped along the upper surface of the deck and penetrate the deck near a drain port provided outside the unit lavatory. By connecting to the upper and lower peripheral side surfaces of the provided single single tubular penetration piece, it is collected outside the unit lavatory and drained to the same drain port, between the penetration piece and the unit lavatory floor surface Since the backflow prevention device is provided outside the unit lavatory of the second drainage pipe to be piped, the first drainage pipe that directly discharges wastewater from the toilet bowl, and the mounting floor surface of the toilet bowl are provided. It may sewage connected to the second drain pipe and through pieces of shared by aggregating to discharge simplify installation work of the drainage tube, such as flow. Therefore, the penetration work of the penetration piece for inserting and fixing to the deck, the attachment work to the deck, and the connection work of the drain pipe to the penetration piece are streamlined without much time and labor, and the construction of the drain pipe is more efficient. The equipment cost and the construction cost are reduced without requiring many parts.

[Brief description of the drawings]

FIG. 1 is a drainage pipe system diagram showing one embodiment of a method of laying a sewage drainage pipe in a ship residence area according to the present invention.

FIG. 2 is an enlarged sectional view showing an example of a valve case of the backflow prevention device used in the present embodiment.

FIG. 3 is an enlarged plan view of the same.

FIG. 4 is a view on arrow AA of FIG. 3;

FIG. 5 is a drain pipe system diagram showing an example of a conventional method of laying a sewage drain pipe in a ship residence area.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unit lavatory 2 Living area 3 Toilet bowl 4 Sewage 5 Mounting floor 6 Deck 7 First drain 8 Sew 10 Second drain 13 Shower 17 Third drain 18 Penetration piece 19 Penetration piece 25 Shower combing

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-10-318389 (JP, A) JP-A-8-28718 (JP, A) JP-A-8-184083 (JP, A) 96298 (JP, U) Japanese Utility Model Showa 62-44979 (JP, U) Japanese Utility Model Showa 61-128465 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E03C 1/12 B63B 29 / 16 E03C 1/298

Claims (1)

(57) [Claims] 1. A method of laying a sewage drain pipe to be guided to a unit lavatory installed in a ship settlement,
A first drain pipe for directly discharging sewage from a toilet provided in the unit lavatory and a second drain pipe for discharging sewage flowing through a floor attached to the toilet are piped along the upper surface of the deck and the unit lavatory Connected to the upper and lower peripheral sides of a single single tubular penetration piece penetrating the deck near the drain provided outside the unit, so that it is collected outside the unit lavatory and drained to the same drain A method of laying a sewage drainage pipe in a ship accommodation area, wherein a backflow prevention device is provided outside the unit lavatory of the second drainage pipe which is piped between the penetration piece and the floor of the unit lavatory.