JPS591918Y2 - Ships equipped with floating oil detection equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to a ship equipped with a floating oil detection device. Specifically, it inspects a wide range of sea surfaces at night, especially in the dark, and detects oil floating on the sea surface or mixed oil quickly and efficiently. It concerns a ship equipped with equipment for better detection.

Conventionally, in order to detect oil floating on the sea surface, visual inspection with the naked eye has usually been adopted.

However, this method has the disadvantage that it is only available during the day and is almost impossible to use at night.

Another known method is to irradiate the sea surface with ultraviolet rays to cause floating oil to emit light, and detect the floating oil by receiving the emitted light (Japanese Patent Laid-Open No. 49-34393).
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However, in order to prevent the influence of ambient light, this method requires that the light emitting and light receiving devices be housed in a shielding box, etc., and as a result, the sea surface area that can be inspected at one time is extremely limited, making it inefficient. It is something.

Therefore, the inventor of the present invention conducted repeated research in order to solve the drawbacks of the above-mentioned conventional techniques.

As a result, while adopting the well-known knowledge of detecting floating oil by projecting ultraviolet rays onto the sea surface, causing the oil to emit light, and receiving the light, the ship is equipped with a device that has these light-emitting and light-receiving functions. By doing this, we discovered that it is possible to inspect a wide range of sea surfaces at night, especially in the dark, and quickly and efficiently discover oil floating on or mixed in with the sea surface, and have completed the present invention.

The present invention will be explained as follows with reference to the drawings.

Fig. 1 is an explanatory diagram schematically showing the floating oil detection device used in the present invention, and Figs. 2 and 3 are explanatory diagrams showing the state in which the above detection device is installed on a ship. A mercury lamp 1 equipped with a filter 2 that transmits the mercury lamp, a brightness measuring device 3 that measures the brightness of fluorescence emitted from oil by the ultraviolet rays projected from the mercury lamp, a photomultiplier tube, a phototube, a photocell, etc. that converts the brightness into an electric current. To provide a ship equipped with a floating oil detection device on the sea surface consisting of a photoelectric converter 5, an amplifier 6 for amplifying the current, and a recording alarm 7 for recording the amplified current and issuing an alarm when the amplified current is recorded above a set value. It is something.

In the detection device of the present invention, ultraviolet rays 8 are first projected onto the sea surface 10 using one or more mercury lamps 1 equipped with a filter 2 on the front that transmits only ultraviolet rays as a light source.

There is no particular limit to the amount of ultraviolet rays that should be projected here, but usually 3
A wavelength of 00 to 4QQ nm is preferable.

If the wavelength is less than 300 nm, it is harmful to the human body, and if it exceeds 4QQ nm, the reflected light will enter the light receiving surface and cause an error in the measured value, which is not preferable.

When the projected ultraviolet rays 8 hit the sea surface, if there is oil 11 floating or mixed on the sea surface, this oil 11 emits fluorescence 9.

The luminance of the fluorescent light 9 emitted from this oil is measured by a luminance measuring device 3.

In this case, the brightness measuring device 3 is equipped with a filter that blocks light having a wavelength of 4QQ nm or less.

Incidentally, it is preferable that the brightness measuring device 3 has a built-in telephoto lens, so that the condition of the sea surface can be checked from the eyepiece lens 4 through the telephoto lens as necessary.

Subsequently, the luminance of the fluorescence generated from the oil measured by the luminance measuring device 3 is converted into an electric current by the photoelectric converter 5 and detected.

Furthermore, the detected current is amplified by an amplifier 6,
The amplified current is recorded by a recording alarm 7.

In addition, if the amplified current recorded is greater than a preset value due to the large amount of floating oil and the detected current is large, the recording alarm 7 will issue an alarm, and as a result,
Appropriate measures may be taken.

If a patrol boat is equipped with a device like the one described above as shown in Figure 2, it will be possible to project ultraviolet light over a wide range of sea surfaces as the patrol boat travels, making it possible to efficiently detect floating oil. .

Furthermore, if the above device is supported on a long guide rack 14 on a large tanker at anchor as shown in FIG. 3, oil on the sea surface over a wide range can be detected by scanning the device.

Therefore, according to the ship of the present invention, it is possible to reliably and efficiently discover floating oil on the sea surface over a wide range at night.

Therefore, the vessel of the present invention can be widely used for detecting spilled oil and leaking oil in ports and open ditches.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram schematically showing a floating oil detection device used in the present invention, and FIGS. 2 and 3 are explanatory diagrams showing the state in which the detection device is installed on a ship. 1...mercury lamp, 2...filter, 3
...Brightness measuring device, 4...Eyepiece,
5...Photoelectric converter, 6...Amplifier, 7
...Recording alarm, 8...Ultraviolet light, 9.
...Fluorescence, 10...Sea surface, 11...
...Oil, 12...Patrol boat, 13...Large tanker, 14...Guide rack.

Claims (1)

[Scope of utility model registration request] Mercury lamp 1 equipped with a filter 2 that transmits only ultraviolet rays
, a brightness measuring device 3 that measures the brightness of fluorescence emitted from oil by ultraviolet rays projected from the mercury lamp, a charging converter 5 that converts the brightness into a current, an amplifier 6 that amplifies the current, and records the amplified current. The ship is equipped with a floating oil detection device on the sea surface consisting of a recording alarm device 7 that issues an alarm if the oil exceeds a set value.