JPH0796886A - Overflow prevention assist device for replenishment of oil - Google Patents

Abstract

PURPOSE:To prevent overflow gr flow-out of oil outside of a ship during replenishment of oil such as fuel oil for a small-sized ship or the like, by providing an acoustic device for issuing a sound caused by air pressure, in a portable overflow tank so as to previously inform of the full of a loading tank during replenishment of oil. CONSTITUTION:An acoustic device 3 which issues a sound caused by air-pressure and which has a shut-off valve for cutting the sound, is attached to a portable overflow tank 1 in the vicinity of the upper end of an air vent 2. An overflow introduction pipe 4 which is attached to the upper part of the tank 1, can be connected to another tank. With this arrangement, the full of a loading tank is informed through a variation in sound issued from the acoustic device. With this arrangement, no excellent skill is required for the worker, and further the full of the loading tank can be informed to persons in surrounding, or a valve operator for the tanker as immediately as possible, whereby it is possible to enhance the safety for preventing the overflowing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary facility for preventing overflow from a loading tank when refueling fuel oil, especially for small vessels.

[0002]

2. Description of the Related Art Generally, for fuel oil such as fuel oil for ships, the loading amount is about 80 to 90% of the capacity of each tank for safety. Since the capacity of the tank is small, it is often filled in the tank,
It can be said that there is a high risk of fuel oil overflowing from the loading tank. In particular, there are few general small vessels that have a facility to check the tank capacity by electrical and mechanical devices.When refueling, attach a portable overflow tank to the air vent of the loading tank, and while sounding the tank or preloading it. In most cases, a fixed amount is used to supplement oil, but in the conventional portable overflow tank, this is like a saucer when fuel oil overflows from the air vent of the fuel oil tank, etc. Therefore, in order to know the full loading of the loading tank, skill is required, it is necessary to touch it by hand, and watch it carefully.
There was a risk of overflow if careful. In addition, as a ship ages, it may not be possible to install a portable overflow tank due to rust or corrosion of the air bleeding of the tank.

[0003]

When refueling a ship, a general ship is equipped with a portable overflow tank for venting the air from the loading tank to prevent the outflow of fuel oil and the like to the outside of the ship. There was a problem that somebody was inadvertent due to immaturity and lack of monitoring, or that a portable overflow tank could not be attached to the air vent of the tank and fuel oil and the like leaked out of the ship, causing marine pollution.

The present invention prevents inadvertent overflow of fuel oil and the like from the loading tank and outflow to the outboard by notifying in advance the full loading of the loading tank during refueling, and in the unlikely event that the loading tank is out of the loading tank. The purpose of this is to minimize or prevent outflow when it overflows.

[0005]

In order to achieve the above object, the present invention provides a portable overflow tank with an acoustic device for producing a sound by air pressure and an overflow introducing pipe, and for producing a sound by air pressure for venting the tank. Attach an audio device to notify the surroundings in advance of the full loading of the loading tank by sound, and in the unlikely event of an overflow from the loading tank, guide it to the intake port of another tank via the overflow introduction pipe attached to the portable overflow tank. To

Regarding the installation of the overflow introducing pipe, it is easy to guide it to the intake port of another tank. Considering the long distance, it is better to connect the overflow introducing pipe to the other tanks. As for the part to be attached to the intake port, it is advisable to put the tip of the overflow introduction pipe inside the intake port and the guard part outside the intake port, and attach it with rubber or a string.

As a method of using a portable overflow tank that emits sound due to air pressure, as the ship ages, the tank may be deflated because the portable overflow tank may not be attached due to rust or corrosion. In addition to installing it in a gap, it is recommended to install it with Velcro etc. to the air vent of a conventional portable overflow tank.

With regard to the sound, it is dangerous to hear a sound all the time during the refueling work, and it is dangerous because other people's voices and abnormal noises cannot be heard. It is practical to use an acoustic device that emits sound by weak air pressure, and a closing device such as a valve for stopping the sound should be provided.

As a place to install the acoustic device, it is preferable to surely receive the air pressure from the tank when the fuel oil or the like is loaded and to see the change in the air pressure, and it is considered appropriate to evacuate the tank. Regarding the sounding pipe of the tank, the sounding pipe body is often guided to the bottom of the tank, and when loading it also serves as an air vent,
The liquid level in the sounding pipe is
The sounding pipe is likely to overflow first because it becomes a little higher, and it is difficult to prevent the sounding pipe from having to flow out if it should overflow.

[0010]

When the fuel oil tank or the like is fully loaded at the time of loading, a breathing phenomenon such as air coming out or stopping from the air bleeding of the tank due to the fluctuation of the liquid level in the tank or the like appears. Sound is emitted by the air pressure from the air bleeding of the loading tank at the time, the sound is changed by the change of the air pressure in the breathing phenomenon of the tank, and this change of the sound informs the surroundings of the full load of the tank. Can be sounded when the tank is fully loaded, and therefore it is practical to make a sound when the air pressure becomes weak during the breathing phenomenon.

When fuel oil or the like overflows from the air bleeding of the loading tank inadvertently during refueling, the overflow inlet pipe is attached to the portable overflow tank attached to the air bleeding of the loading tank to attach it to the intake port of another tank. By guiding it, it serves as an emergency introduction pipe when fuel oil or the like is not stored in the portable overflow tank, and minimizes or prevents outflow to the outboard.

[0012]

EXAMPLES Examples will be described with reference to the drawings.
In FIG. 1, a sounding device that emits sound by air pressure having a closing valve for cutting sound near the upper end of the air vent of the portable overflow tank is attached, and an overflow introducing pipe is attached above the tank of the portable overflow tank. It led to the intake pipe of the tank.

In the embodiment shown in FIG. 2, an acoustic device for producing a sound by air pressure is attached to the inside of an air vent such as a fuel oil tank, and a closing valve is opened and closed from the outside of the air vent.

In the embodiment shown in FIG. 3, a portable acoustic device that emits sound by air pressure is attached to the air vent of the tank.

[0015]

As described above, the present invention has the following effects.

By mounting an acoustic device which emits a sound by the air pressure from the loading tank to the air bleeding of the tank or the like, it is possible to reliably know the full loading of the loading tank when refueling fuel oil or the like.

Since the full loading of the loading tank is notified by a change in the sound, the operator does not need to be skilled, and the surrounding people and the valve operator of the tanker can also be notified by hearing quickly and overflow. Safety for prevention is enhanced.

A portable acoustic device that emits sound by air pressure is most suitable for venting a tank in which a portable overflow tank cannot be attached, and when used by attaching it to a conventional portable overflow tank with Velcro or the like, it is safe. To be enhanced.

By attaching the overflow introducing pipe to the portable overflow tank, the secondary outflow from the portable overflow tank can be prevented and the outflow to the outboard can be suppressed as much as possible.

By making a sound only when a breathing phenomenon occurs in a fully loaded state of a fuel oil tank or the like, it is possible to prevent danger to others, prevent danger, and enhance practicality.

In addition, it is possible to prevent overflow due to some carelessness due to misunderstanding of the loading quantity, incorrect tank measurement, etc., and it is possible to detect the carelessness early, especially when fuel oil or the like is fed at full rotation. Therefore, the overflow can be suppressed to the minimum limit.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment in which a sound device and an overflow introducing pipe are attached to a portable overflow tank.

FIG. 2 is a vertical cross-sectional view showing an embodiment in which an acoustic device is attached to the air vent of a tank.

FIG. 3 is a vertical sectional view showing an embodiment in which a portable audio device is attached to an air vent of a tank.

[Explanation of symbols]

 1 Portable overflow tank 2 Air removal from portable overflow tank 3 Sound device 4 Overflow introduction pipe 5 Closing valve 6 Guard part 7 Intake port of other tank 8 Venting tank 9 Portable sound device

Claims (5)

[Claims] 1. An auxiliary facility for preventing overflow at the time of refueling, in which a portable overflow tank is equipped with an acoustic device that emits sound by air pressure. 2. An overflow prevention auxiliary facility at the time of refueling, in which a portable overflow tank is provided with an overflow introduction pipe. 3. An overflow prevention auxiliary facility at the time of refueling, in which an acoustic device that emits sound by air pressure is attached to an air vent such as a fuel oil tank. 4. An auxiliary facility for preventing overflow at the time of refueling by a portable acoustic device that emits sound by air pressure. 5. An overflow prevention auxiliary facility at the time of refueling by an acoustic device which does not emit sound under strong air pressure but emits sound under weak air pressure.