JP2012245972A - Restroom of ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a restroom pit latrines of a ship that can make water drain automatically and can be cleaned by itself.SOLUTION: The tank body of a holding tank 1 includes: an opening 2 for sea water inflow; an opening 3 for discharging both human excreta within the tank and sea water; a compressed air blowing port 6 for feeding air into the tank; a sea water forced discharging port 7 for forcedly discharging sea water remained in the tank; and an air exit port 5. Although human excreta and domestic sewage stored in the tank are discharged out during cruising at oceanic region, at this time, the valves at the opening 2 for sea water inflow and the opening 3 for sea water outflow are opened and the sea water forced discharging part 7 and the compressed air blowing port 6 are closed. After this operation, the sea water forced discharging valve 7 arranged at the holding tank 1 is opened and air is fed through the compressed air blowing port 6. The fed air is started to accumulate from the upper part of the holding tank to push the sea water remained in the tank in a downward direction.

Description

Detailed Description of the Invention

The present invention relates to a ship's toilet.

More specifically, it is a system that uses the seawater during navigation as a toilet tank of a ship's toilet and discharges “human waste”.

Conventionally, when navigating, the “human waste” is discharged directly into the seawater from the toilet installed on the ship, or when it is used in a closed sea area or while anchored, it is usually called a separate holding tank. Once stored in the tank, it is then aspirated at a vacuum suction facility on the ground, or discharged from the tank into the sea outside the ship while navigating in the open ocean.

When discharging the “human waste” in the holding tank in the open ocean, it was customary to pump it out with a suction pump and discharge it.

Problems to be solved by the invention

With conventional ship toilets, especially for small ships that do not have a holding tank, the use of toilets was impossible during berths in closed sea areas or harbors because of the need to constantly discharge outside the ship.

However, it is often used in secret or without the intention to discharge sewage, and “human waste” contamination in closed seas is a problem.

In addition, when using a holding tank, once the “human waste” is stored in the tank, it is sucked and discharged by vacuum when in the port, or it is discharged into the sea using the gravity difference or pump in the ocean. However, the majority of pontoons, harbors, and yacht harbors where small ships are anchored are not fully equipped with this vacuum processing system, and the residue remaining inside the tank cannot be handled only by suction discharge. Met.

Means for solving the problem

In order to solve the above problems, in the present invention, the holding tank has a self-help function for discharging.

In the holding tank 1 of the present invention, the tank body is provided with an opening 2 for inflow of seawater, “human waste” in the tank and an outflow opening 3 for seawater, and a compressed air inlet 6 for sending air into the tank. The seawater forced discharge port 7 and the air vent port 5 for forcibly discharging the residual seawater in the tank are provided.

Each opening in the previous section is connected to a pipe and a valve, and can be arbitrarily opened and closed by operating the valve.

The holding tank 1 having such an opening is connected to an existing marine flush toilet 8 through a pipe and a valve at a “human waste” inlet 4 and used as a toilet bowl.

While the holding tank 1 is used as a toilet tank, the seawater inflow opening 2 and the discharge opening 3, the seawater forced outlet 7 and the compressed air inlet 6 of the tank are closed by valves.

While the ship is navigating the open ocean, the “human waste” and domestic wastewater contained in the tank are discharged. At this time, the seawater inlet 2 and the seawater outflow opening 3 valves are opened to force seawater The discharge part 7 and the compressed air blowing port 6 are closed.

Thus, “human waste” inside the tank due to inflow of seawater due to dynamic pressure or water pressure during navigation, domestic wastewater is stirred and diluted into the inflowing seawater, and the seawater outflow opening 3 provided at the rear of the tank and into the open ocean together with the inflowing seawater. It flows out.

Thus, when the ship navigates for a while, only the inflowing seawater circulates inside the tank and sequentially flows out from the outlet 3.

Further, as shown in FIG. 7, in the case of a ship that is sailing, seawater is automatically supplied by providing a water supply pipe E <b> 2 to a separate flush toilet in the situation of the above-mentioned item 0014, and the toilet body pump function In some cases, the toilet can be used without using the toilet.

When the sea is closed or anchored, each of the seawater inlet 2, seawater outflow opening 3, venting valve 5, and “human waste” inlet 4 provided in the holding tank of the present case is closed.

Thereafter, the forced seawater discharge valve 7 provided in the holding tank 1 of the present case is opened, and air is sent from the compressed air insertion port 6.

The air sent in by this work starts accumulating from the upper part of the holding tank and pushes the seawater remaining in the tank downward.

As described in the preceding paragraph 0015, only seawater circulates in the tank and is sequentially discharged, and only seawater remains in the tank, so even if this is forcibly discharged by air pressure in a closed sea area or anchorage. There is no pollution of the sea area.

Thus, as the air pressure in the tank increases, the seawater in the tank is pushed back into the sea from the forced seawater discharge port 7 and discharged.

If injection of injection air is recognized from the seawater forced discharge port 7, it is confirmed that the seawater in the tank is almost discharged into the sea outside the tank.

After that, the forced seawater discharge port 7 is closed, the air injection is stopped, and the valve connected to the air vent port 5 is released to return the compressed internal pressure in the tank to the normal pressure. Is an empty tank.

The tank after this evacuation process is an empty tank with normal pressure that is agitated and cleaned with seawater, and is used as a holding tank in a closed sea area or anchorage.

In the present invention, if it is a domestic wastewater made of organic matter, it can be stored in the holding tank 1 and can be disposed of in the ocean as well as “human waste”.

In addition, it goes without saying that the discharge of “human waste” into the ocean in this case means the discharge in accordance with “Article 10 of the Marine Pollution Control Law” and “Decree”.

The holding tank 1 according to the present invention can be used as a bulk tank by lowering the center of gravity of the ship by applying a constant load to the ship with a load of seawater that always flows in in a state where seawater can flow in and out. Conversely, in order to reduce the hull load in an emergency, it can be used as a buoyancy air tank in an empty tank state.

Hereinafter, embodiments of the present invention will be described based on examples with reference to the drawings.

FIG. 1 shows a seawater inlet 2 provided at one end of a holding tank 1 of the main body, and a seawater outlet 3 provided on the opposite side, with a compressed air insertion port 6 at the top, a “human waste” inlet 4 from a toilet, The air vent 5 in the tank and the seawater forced drain 7 are provided at the lower end of the holding tank 1.

Pipes are attached to these openings through openable / closable valves.

FIG. 2 is an explanatory diagram for explaining the implementation status of the present invention installed below the draft line in the hull.

A holding tank 1 serving as a toilet tank located from the bow direction to the stern direction is installed on the bottom of the waterline below the draft line. The toilet tank has an opening 2 for inflow of seawater, an opening 3 for outflow of seawater, and The seawater forced discharge port 7 for the seawater in the tank provided at the lowermost part has an open / close valve, and is in contact with the openings A1, A3, A4 respectively drilled in the hull.

In addition, the body of the toilet 1 has a “human waste” inlet 4 from the toilet bowl, an air outlet 5 in the tank, an inlet 6 for compressed air, and a seawater forced outlet 7 for seawater in the tank provided at the bottom. It has an open / close valve and is connected.

On the hull side, seawater inlet A1 and seawater outlets A3 and A4 to the outside of the hull are opened. Both of these openings are provided below the hull draft.

In addition, although the toilet 8 in the drawing is illustrated on the draft, it actually depends on the allowable space in the ship, and the place is not limited.

As shown in FIG. 7, a tank opening 31 for supplying seawater F1 inside the tank to the toilet 8 by another pipe E2 from the holding tank 1, a pipe E2, and a valve attached thereto may be provided.

As can be seen in FIG. 8, the seawater inlet A1 provided at the lower part in the bow direction is seen at A2 on the bottom side where the position is lowered and the water pressure due to the water depth is easier to obtain than the dynamic pressure of seawater accompanying the ship speed. It may be provided in the lower part of the hull.

The air vent 5 in the tank is an elongated tube-like pipe having a valve that can be opened or closed, or a copper pipe, etc., is guided to the height of the hull in order to avoid odor, and vents the air in the tank and adjusts the atmospheric pressure.

When the toilet is used in a closed sea area or at a berth, as shown in FIG. 3, the openings 2, 3, 6, and 7 are closed by closing the valve.

The “human waste” inlet 4 accepts “human waste” 41 from the toilet 8 by opening the valve. This “human waste” is fed into the holding tank 1 by the pump pressure of the toilet body.

The air vent 5 is opened to vent air 51 in the holding tank 1.

FIG. 4 shows the discharge of “human waste” in the holding tank 1 in the open ocean. Seawater F flows into the tank by dynamic pressure such as ship speed or water pressure by opening the valve of the seawater inflow opening 2. And the sea level F1 in the tank is formed.

At this time, in order for the inflowing seawater F to sufficiently agitate, dilute, and clean the inside of the tank, it is desirable that the seawater outflow opening 3 be opened in view of the full condition of the inflowing seawater F in the tank.

Since the opening 3 on the stern side of the tank seawater surface F1 is opened, the “human waste” in the tank is stirred, diluted, and sequentially discharged from the opening 3 while cleaning the tank.

If the seawater flow of the preceding paragraph continues, the flow comprised only by the external seawater F will circulate in the holding tank 1.

Further, in this situation, as shown in FIG. 7, since the tank is in a state of only seawater circulating inside the toilet tub, the water supply pipe E2 to the toilet bowl is attached to the toilet tub via the valve, and the valve It is useful to supply seawater in the tank to the flush toilet by piping in a separate circuit by opening the tank.

At this time, the flushing water of the toilet bowl can be supplied to the toilet bowl simply by opening and closing the valve without using a suction action such as a pump by the dynamic pressure and water pressure in the holding tank 1.

Thus, the “human waste” recovered from the toilet bowl 8 inside the holding tank 1, which is the main stool, is diluted and agitated when seawater flows from the opening 2, and the “human waste” is diluted and stirred and discharged out of the ship through the outflow opening 3. It is.

In order to use the holding tank 1 again as a toilet tank in a closed sea area or during berthing, the seawater inside the tank is discharged to make an empty tank, but as shown in FIGS. 5 is closed and the seawater forced discharge port 7 is opened.

As shown in FIGS. 5 and 6, when air is inserted from the compressed air inlet 6, the air is accumulated from the upper part inside the holding tank 1, and the residual seawater 11 in the tank is pushed downward as the amount of air increases. F is discharged from the seawater forced discharge port 7.

The seawater discharge state in the tank is confirmed by the state in which air comes out from the opening 7, and then the seawater forced discharge port 7 is closed and the compressed air blowing port 6 is also closed.

After that, when the valve of the air vent 5 is opened, the compressed air in the holding tank 1 escapes from the air vent 5 and the inside of the tank becomes a normal pressure empty tank, so it is used as a stool again. is there.

Further, it is useful to form the end shape of the holding tank 1 in the bow direction and the stern direction into hemispherical C and D as seen in the embodiment of FIG. 9 so that the seawater flow in the tank is smooth.

10 and 11, the seawater inlet 2 as shown in the reference example of the embodiment is divided into a plurality of 21, each having an angle and forming a spiral flow in the direction of the seawater inflow into the tank. This is effective for reducing the resistance to seawater flow and cleaning the tank.

Effect of the invention

Since the present invention is configured as described above, the following effects can be obtained.

In the present invention, “human waste” in the holding tank can be diluted and discharged in the open ocean without relying on an external vacuum suction treatment facility.

In addition, the tank can be washed with seawater when the “human waste” in the tank is discharged.

By using the holding tank of the present invention even if there is no “human waste” treatment facility in a closed sea area or anchorage, a toilet can be used without worrying about marine pollution.

Moreover, when sailing in stormy weather, seawater can be held in the holding tank and the center of gravity of the ship can be lowered as ballast water, so that stable navigation can be performed. In addition, it is possible to stabilize navigation by lowering the center of gravity of the hull by constantly circulating seawater in the tank.

In addition, when holding a ground, the holding tank under the draft can be an arbitrary empty tank, which can reduce the weight of the hull and provide a useful effect for leaving the ground.

It is a perspective view explaining the toilet bowl of the holding tank 1 of this invention. It is a reference figure explaining the toilet tank of the holding tank 1 of this invention attached to the hull. It is a reference figure explaining the "sewage" which flows into the toilet tank of the holding tank 1 of this invention, and air extraction. In the figure, valves 2, 3, 6, and 7 are closed, and valves 4 and 5 are opened. In the figure, closed pipes are installed but not listed. It is a reference figure which shows the outflow of the seawater F which flows into the toilet tank of the holding tank 1 of this invention, and this seawater surface F1. In the figure, the valves 4, 6, and 7 are closed, and the valves 2, 3, and 5 are opened. In the figure, closed pipes are installed but not listed. It is a reference figure which shows the state which discharges the seawater F inside the toilet tank of the holding tank 1 of this invention. In the figure, the valves 2, 3, 4 and 5 are closed, and the valves 6 and 7 are opened. Compressed air is injected from the compressed air blowing port 6. In the figure, closed pipes are installed but not listed. It is a modification of FIG. 5 as an embodiment showing a state of discharging seawater inside the toilet tank of the present invention. In the figure, there is no seawater forced discharge port 7 that leads to the outside of the hull, and the seawater inflow opening 2 is used together. In the figure, the valves 3, 4, 5 are closed, and the valves 2, 6 are open. Compressed air is injected from the compressed air blowing port 6. In the figure, closed pipes are installed but not listed. It is explanatory drawing of the Example which used the seawater in a tank as the state of only the seawater which the inside of a toilet bowl circulates, and became the water supply to the flush toilet bowl 8 by the water intake opening part 31 and piping E2. The pipe E2 is attached to the toilet bowl via a valve. In the figure, closed pipes are installed but not listed. It is a reference figure of the Example which shows the diversity of the opening position of the hull connected to the opening part 2 of the seawater inflow provided in the hull bow direction of the toilet tank which consists of the holding tank 1. FIG. In the figure, A1 is drilled in the bow direction and A2 is drilled in the ship bottom direction. A1 is excellent in dynamic pressure with ship speed, and A2 is excellent in water pressure depending on water depth. It is one Example of the shape of the holding tank 1 used as the toilet bowl 1. FIG. In the figure, both ends C and D of the tank are formed in a hemispherical shape. It is the Example of the opening part 2 of the seawater inflow provided in the main body bow direction of the toilet tank of the holding tank 1. FIG. In the drawing, seawater inflow openings 21 are provided at three angles at angles, forming seawater inflow openings 2. FIG. 11 is a reference diagram for explaining in-tank flow and discharge of inflow seawater flowing through the opening for seawater inflow described in FIG. 10. In the figure, F inflow seawater flows in a vortex in the tank and flows out from the seawater discharge port 3.

DESCRIPTION OF SYMBOLS 1 It is a toilet tank of the holding tank 1 located from the bow direction inside the ship to the stern direction 11 It is a cross-sectional view of the toilet tank 2 2 The opening part of the seawater inflow provided in the main body bow direction of the toilet tank 21 The toilet tank 1 Deformation of the seawater inflow opening provided in the main body bow direction 3 Seawater outflow opening 31 provided in the stern direction of the main body of the stool 1 Opening opening for separate intake of outflow seawater 4 "Human waste" inlet 41 "Human waste""5" Air vent in the tank 51 Air vent in the tank 6 Compressed air inlet 61 Compressed air flow 7 Forced seawater outlet to allow outside the hull 8 Flush toilet 9 Sea surface 10 Hull 11 Residual in the tank Seawater A1 Hull opening for seawater inflow located below the draft drilled in the bow direction A2 Hull opening for seawater inflow located below the draft drilled in the ship bottom A3 Located below the ship draft Opening for seawater outflow opened in the body A4 Opening for seawater forced outflow drilled below the hull draft C Example of frontal shape of the toilet bowl of the hemispherical holding tank 1 D Hemispherical holding tank 1 Example of rear stool shape of pipe E E2 E2 Water supply pipe for seawater intake from stool to flush toilet F Flow of seawater F1 Seawater surface formed in tank

Claims (2)

A holding tank 1 serving as a stool located from the bow direction to the stern direction is installed inside the ship, and seawater is supplied from the opening 2 provided in the bow direction of the main body of the holding tank 1 by the dynamic pressure or water pressure of the ship speed during navigation. The water flowing into the main body holding tank 1 is simultaneously discharged from the opening 3 provided in the main body stern direction of the holding tank 1 at the same time, and the seawater flowing into the tank is sequentially discharged. A toilet of a ship in which the holding tank 1 is installed below the draft of the ship, with the holding tank 1 being characterized in that “human waste” is mixed with seawater, diluted and discharged from the opening 2. In the toilet of the ship according to claim 1, an opening 2 provided in the bow direction of the main body of the holding tank 1 with respect to the holding tank 1 which has become a stool filled with inflowing seawater after the discharge of “human waste” and successively circulated The opening 3 provided in the stern direction of the main body of the holding tank 1 and the “human waste” inlet 4 from the toilet and the air vent 5 in the tank are closed together, and compressed air blowing provided in the main body of the holding tank 1 is performed. Compressed air is fed into the holding tank 1 from the opening 6, the seawater inside the holding tank 1 is pushed out and discharged from the forced seawater discharge port 7 provided in the lower part of the main body of the holding tank 1 and communicated to the outside of the hull. The seawater forced discharge port 7 is closed and the compressed air blowing port 6 is closed. The open and none, and evacuated the compressed air which was fed into the tank, a ship of toilet characterized in that the body interior of the holding tank 1 in the empty state of the atmospheric pressure.

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