JPH11334687A - Anti-rolling tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the weight and increase the available space by eliminating an air duct that communicates upper portions of left and right wing tank. SOLUTION: A lower communication tank 2 for communicating lower portions of respective wing tanks 3 of both sides of a ship body 1 such that liquid 4 is filled to a predetermined level of the tank 3. Each of upper portions of the wing tanks 3 is provided with a float receiver 6 structured to pass liquid therethrough and a float valve 5 housed within the float receiver 6 as well as an opening 8 with a valve seat 7 that is closed when the float valve 5 is submerged and floats upon sharp inclination of the ship body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-roll tank for reducing the roll of a hull.

[0002]

2. Description of the Related Art As a conventional anti-oscillation tank provided on a ship, there is one shown in FIG. 4 (hull cross section).
Wing tanks 3 are provided on both sides of the hull 1, respectively, and a lower communication tank 2 for communicating the lower portions of the wing tanks 3 with each other is provided. Each upper part of the left and right wing tanks 3 is provided with an air duct 9.
Are communicated with each other.

By the way, when the air duct 9 is provided as described above, the movement of the water 4 in each of the tanks 2 and 3 becomes smooth, but the weight increase and the use space due to the installation of the air duct 9 are reduced. Inviting, especially the air duct 9 is the hull 1
If it is provided inside the space, the effective space is greatly reduced.

In the case of a work boat, if the upper structure of the air duct 9 is installed as shown in FIG. 4, the view will be obstructed and the workability will be deteriorated.

[0005]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems associated with the conventional rocking tank, and eliminates the need for an air duct for interconnecting the upper portions of the left and right wing tanks. In particular, an object of the present invention is to provide an anti-oscillation tank which reduces weight and increases useful space.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a vibration-reducing tank according to the present invention comprises a wing tank provided on each side of a hull and containing a liquid so as to have a gas space at an upper portion thereof. A lower communication tank that communicates each lower part of the wing tank with each other, and a floating body receiver that allows the passage of fluid on each upper part of the wing tank;
A floating valve housed in the floating body receiver and an opening with a valve seat provided above the floating body valve and closed by the floating contact of the floating body valve are provided.

In the above-described rocking tank of the present invention, when the liquid in the tank reciprocates through the lower communication tank to perform the rocking action when the rocking of the hull is small, the liquid in each wing tank is replaced by the same wing. Since it does not reach the floating valve at the top of the tank, the floating valve remains supported by the floating receiver, and the air on the liquid level in each wing tank passes through the opening with the valve seat at the top of the wing tank. You can enter and leave freely.

In the case where the hull is large, the liquid reciprocating through the lower communication tank is remarkably moved. However, since the liquid reaches the floating valve, the floating valve floats and the liquid floats. It comes into close contact with the valve seat in the opening and closes the opening. Therefore, the liquid in the wing tank does not overflow upward.

In this way, the conventional air duct connecting the upper parts of the left and right wing tanks becomes unnecessary,
The lowering effect can be performed without hindrance, so that the air duct does not increase the weight or reduce the useful space.In addition, especially when the upper structure of the lowering tank is installed on a work boat or the like, the lowering effect is caused by the air duct. It is possible to avoid obstruction of the view and deterioration of workability.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a hull of a ship provided with the oscillating tank according to an embodiment of the present invention; FIG.
Fig. 3 is a cross-sectional view of the hull when a small sway occurs in the ship
FIG. 2 is a cross-sectional view of the hull when the ship of FIG.

FIG. 1 shows a case where the anti-rolling tank according to the present embodiment is installed on a hull 1 and upper portions of the hull 1 are provided with wing tanks 3 on both sides, respectively. , 3 is provided with a lower communication tank 2 which communicates with each lower part.

A liquid (water) 4 is accommodated in the lowering tank to an appropriate level so as to form a gas space above the wing tank 3.

On the upper part of each wing tank 3, there is provided a floating body receiver 6 formed in a lattice shape and allowing the passage of fluid.
In addition to the spherical floating valve 5 housed in the floating body receiver 6, an opening 8 with a frusto-conical valve seat 7 is provided which is closed by floating contact of the floating body valve 5 when the floating body 5 is flooded. .

The opening 8 is gently covered with an umbrella member 8a for preventing infiltration of rainwater and waves. That is, the opening 8 is open to the atmosphere.

In the above-described anti-oscillation tank of this embodiment, when the oscillation of the hull 1 is small, when the in-tank liquid 4 reciprocates through the lower communication tank 2 to perform the anti-oscillation action, each wing tank 3 Since the liquid 4 does not reach the floating valve 5 above the wing tank 3, the floating valve 5 remains supported by the floating receiver 6, and the air on the liquid surface in each wing tank 3 is removed from the wing tank 3. 3 is free to enter and exit as it passes through the lattice-shaped floating body receiver 6 and the opening 8 with the valve seat 7.

When the hull 1 is very swayed, the movement of the liquid 4 reciprocating through the lower communication tank 2 becomes intense, but the liquid 4 reaches the floating valve 5.
The floating body valve 5 floats by flooding and comes into close contact with the valve seat 7 in the opening 8 to close the opening 8. Therefore, the liquid 4 in the wing tank 3 does not overflow.

Thus, the left and right wing tanks 3
A conventional air duct connecting the upper portion of the air duct (reference numeral 9 in FIG. 4)
(See Reference)), the vibration reduction function is performed without hindrance, and the above-mentioned air duct does not increase the weight or decrease the useful space. In addition, the obstruction of the field of view and the deterioration of workability caused by the air duct can be avoided.

[0018]

As described above in detail, the following effects can be obtained by the vibration reducing tank of the present invention. (1) When the hull of the hull is small, the opening at the top of the wing tank is kept open to the atmosphere, and when the hull of the hull is large, the opening is closed by the floating of the floating valve, and the liquid in the tank is closed. Spillage is prevented, so that the function of the damper tank is maintained without the need for a conventional air duct, which results in reduced weight and increased service space. (2) In the case of installing an upper structure of a rocking tank on a work boat or the like, obstruction of the view and deterioration of workability caused by the air duct can be avoided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a hull of a ship including a rocking tank according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the hull in a case where the ship shown in FIG.

FIG. 3 is a cross-sectional view of the hull in a case where the ship shown in FIG.

FIG. 4 is a cross-sectional view of a hull of a ship provided with a conventional anti-roll tank.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hull 2 Lower communication tank 3 Wing tank 4 Liquid 5 Floating valve 6 Floating body receiver 7 Truncated conical valve seat 8 Opening 8a Umbrella member 9 Air duct

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[Procedure amendment]

[Submission date] June 19, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Anti-roll tank

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-roll tank for reducing the roll of a hull.

[0002]

2. Description of the Related Art As a conventional anti-oscillation tank provided on a ship, there is one shown in FIG. 4 (hull cross section).
Wing tanks 3 are provided on both sides of the hull 1, respectively, and a lower communication tank 2 for communicating the lower portions of the wing tanks 3 with each other is provided. Each upper part of the left and right wing tanks 3 is provided with an air duct 9.
Are communicated with each other.

When the air duct 9 is provided as described above, the movement of the water 4 in each of the tanks 2 and 3 becomes smooth. Inviting, especially the air duct 9 is the hull 1
If it is provided inside the space, the effective space is greatly reduced.

In the case of a work boat, if the upper structure of the air duct 9 is installed as shown in FIG. 4, the view will be obstructed and the workability will be deteriorated.

[0005]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems associated with the conventional rocking tank, and eliminates the need for an air duct for interconnecting the upper portions of the left and right wing tanks. in particular Ri good, it is an object of the present invention to provide a swinging motion reducing tank that was to bring about the increase of the chromatic auditors space and the reduction of weight.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a vibration-reducing tank according to the present invention is provided on both sides of a hull, and is provided with a wing tank for containing a liquid so as to have a gas space at an upper portion thereof. A lower communication tank that communicates each lower part of the wing tank with each other, and a floating body receiver that allows the passage of fluid on each upper part of the wing tank;
It is characterized in that the floating valve housed in the receiving the floating body, a valve seat-opening which is more closed on floating of the floating valve provided above the same float valve is provided.

In the above-described rocking tank of the present invention, when the liquid in the tank reciprocates through the lower communication tank to perform the rocking action when the rocking of the hull is small, the liquid in each wing tank is replaced by the same wing. Since it does not reach the floating valve at the top of the tank, the floating valve remains supported by the floating receiver, and the air on the liquid surface in each wing tank passes through the opening with the valve seat at the top of the wing tank. You can enter and leave freely.

In the case where the hull is large, the liquid reciprocating through the lower communication tank is remarkably moved. However, since the liquid reaches the floating valve, the floating valve floats and the liquid floats. contact the valve seat at the opening, so to close the same opening. Therefore, the liquid in the wing tank hardly overflows upward.

In this way, the conventional air duct connecting the upper parts of the left and right wing tanks becomes unnecessary,
The lowering effect can be performed without hindrance, so that the air duct does not increase the weight or reduce the useful space. It is possible to avoid obstruction of the field of view and deterioration of workability.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of an anti-roll tank according to an embodiment of the present invention; FIG.
Fig. 3 is a cross-sectional view of the hull when a small sway occurs in the ship
FIG. 2 is a cross-sectional view of the hull when the ship of FIG.

FIG. 1 shows a case where the anti-rolling tank according to the present embodiment is installed on a hull 1 and upper portions of the hull 1 are provided with wing tanks 3 on both sides, respectively. , 3 is provided with a lower communication tank 2 which communicates with each lower part.

A liquid (water) 4 is accommodated in the lowering tank to an appropriate level so as to form a gas space above the wing tank 3.

On the upper part of each wing tank 3, there is provided a floating body receiver 6 formed in a lattice shape and allowing the passage of fluid.
In addition to the floating body valve 5 spherical housed in the float receiving 6 is provided, with the frusto-conical shape valve seat 7 with openings 8, which is more closed on floating during flooding of the same floating body valve 5 is provided I have.

The opening 8 is gently covered with an umbrella member 8a for preventing infiltration of rainwater and waves. That is, the opening 8 is open to the atmosphere.

In the above-described anti-oscillation tank of this embodiment, when the hull 1 is less oscillated, when the liquid 4 in the tank reciprocates through the lower communication tank 2 to perform the anti-oscillation action, each wing tank 3 Since the liquid 4 does not reach the floating valve 5 above the wing tank 3, the floating valve 5 remains supported by the floating receiver 6, and the air on the liquid surface in each wing tank 3 is removed from the wing tank 3. 3 is free to enter and exit as it passes through the lattice-shaped floating body receiver 6 and the opening 8 with the valve seat 7.

When the hull 1 is very swayed, the movement of the liquid 4 reciprocating through the lower communication tank 2 becomes intense, but the liquid 4 reaches the floating valve 5.
The floating body valve 5 is tangent to fly by flooding the valve seat 7 at the opening 8, so to close the same opening 8. Therefore, the liquid 4 in the wing tank 3 does not overflow.
Almost no.

Thus, the left and right wing tanks 3
A conventional air duct connecting the upper portion of the air duct (reference numeral 9 in FIG. 4)
(See Reference)), the vibration reduction function is performed without hindrance, and the above-mentioned air duct does not increase the weight or decrease the useful space. the deterioration of the interception and workability vision which occurs by the air duct will be able to avoid.

[0018]

As described above in detail, the following effects can be obtained by the vibration reducing tank of the present invention. (1) When the hull of the hull is small, the opening at the top of the wing tank is kept open to the atmosphere, and when the hull of the hull becomes large, the opening is closed by the floating of the floating valve, and the liquid in the tank is closed. Spillage is prevented, so that the function of the damper tank is maintained without the need for a conventional air duct, which results in reduced weight and increased service space. (2) When the configuration set on the reduced rocking tank in such work boats, intercepting and workability deterioration of vision which occurs by the air duct will be able to avoid.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a hull of a ship including a rocking tank according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the hull in a case where the ship shown in FIG.

FIG. 3 is a cross-sectional view of the hull in a case where the ship shown in FIG.

FIG. 4 is a cross-sectional view of a hull of a ship provided with a conventional anti-roll tank.

[Description of Signs] 1 Hull 2 Lower communication tank 3 Wing tank 4 Liquid 5 Floating valve 6 Floating body receiver 7 Truncated conical valve seat 8 Opening 8a Umbrella member 9 Air duct

Claims (1)

[Claims] A wing tank provided on both sides of a hull for storing a liquid so as to have a gas space at an upper part thereof; and a lower communication tank communicating the lower parts of the wing tanks with each other. On each upper part of the tank, a floating body receiver that allows the passage of fluid, a floating valve housed in the floating body receiver, an opening with a valve seat provided above the floating body valve and closed by the floating close contact of the floating body valve, An anti-roll tank, characterized by being provided with: