KR200476891Y1

KR200476891Y1 - Residual water detection apparatus for fuel oil service tank

Info

Publication number: KR200476891Y1
Application number: KR20130008332U
Authority: KR
Inventors: 조덕희
Original assignee: 대우조선해양 주식회사
Priority date: 2013-10-10
Filing date: 2013-10-10
Publication date: 2015-04-10

Abstract

The present invention relates to a device for detecting the remaining amount of fuel in a fuel supply tank of a rigid line, more specifically, to a device for detecting water remaining in a fuel supply tank of a rigid line at a minimum height, The present invention relates to an apparatus for detecting the remaining number of fuel supply tanks in a rigid line that can be maintained and improved in maintenance / repair efficiency.
According to the present invention, there is provided an apparatus for detecting the remaining amount of fuel in a fuel supply tank, comprising: a pipe-type sensor installed longitudinally in a fuel supply tank and sensing water stored in the tank; A sensor guide pipe enclosing and protecting the pipe type sensor and having a lower end adjacent to the bottom of the fuel supply tank; And a support portion for stably supporting the lower end portion of the sensor guide pipe on the bottom of the tank.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fuel supply tank,

The present invention relates to a device for detecting the remaining amount of fuel in a fuel supply tank, and more particularly, to a device for detecting water remaining in a fuel supply tank in a ship such as a league line at a minimum height to reduce a dead zone, The present invention relates to an apparatus for detecting the remaining amount of a fuel supply tank capable of improving the maintenance / repair efficiency.

In general, ships and floating offshore structures are equipped with fuel tanks, fuel supply pumps, and supply lines to supply the fuel required for various engines and boilers.

The fuel tank of such a fuel supply facility is provided with a fuel storage tank for storing and storing fuel for the first time, a settling tank for purifying the fuel, and a fuel supply tank for directly supplying fuel to the supply source oil service tank.

Among these fuel tanks, the fuel supply tank can be filled with water, and when the water reaches a certain height, it must be suctioned and discharged to the outside. Basically, the lower the water, the better the fuel can be provided.

Fig. 1 schematically shows an example of a device capable of detecting the remaining number of fuel supply tanks.

1 is mounted on the upper or side upper end of the fuel supply tank by mounting and includes a flexible tube 1 and a sensor portion 2 provided at a lower portion of the flexible tube 1 ) Is a long type.

Here, to prevent turbulence of the flexible tube 1 and the sensor unit 2, the flexible tube 1 and the sensor unit 2 are connected and fixed to the bottom of the tank via the hooker 3.

On the other hand, in the fuel supply tank in the rig ship, the dead zone is reduced and an alarm is received at a water level of, for example, at least 120 mm from the time when the height of the remaining water in the lower tank is as low as possible, .

However, since the residual water detecting device as described above needs to connect the hooker to the bottom of the tank, a dead zone of at least 200 mm is generated, so that it can not be detected until a considerable amount of water is discharged from the bottom of the tank .

In addition, since the residual water detecting device of the above-described type can be maintained in a state in which there is no fluid in the fuel supply tank during maintenance due to the hooker at the bottom of the tank, there is a problem that maintenance is not easy.

The technical problem to be solved by the present invention is to reduce the dead zone by allowing the water remaining in the fuel supply tank to be detected at a minimum height and to improve maintenance / repair efficiency by allowing maintenance even in the presence of fluid Which can detect the remaining number of fuel supply tanks in the league line.

According to an aspect of the present invention, there is provided an apparatus for detecting the remaining number of fuel supply tanks,

A pipe type sensor installed longitudinally inside the fuel supply tank and sensing water stored in the tank;

A sensor guide pipe enclosing and protecting the pipe type sensor and having a lower end adjacent to the bottom of the fuel supply tank; And

And a support for stably supporting the lower end of the sensor guide pipe on the bottom of the tank.

Preferably, the lower portion of the pipe-type sensor may be provided to extend adjacent to the bottom of the tank.

Preferably, the sensor guide pipe is formed in a pipe shape surrounding the pipe-type sensor, and a plurality of fluid flow holes through which the fluid can flow can be formed on the surface of the sensor guide pipe.

Preferably, the sensor guide pipe is made of Teflon (PTFE), and the sensor guide pipe has a large diameter portion having a predetermined length; A tapered portion converging at one end of the large diameter portion; And a small diameter portion extending from the tapered end of the tapered portion toward the bottom of the tank.

Preferably, a plurality of protection rings surrounding the pipe type sensor are spaced apart from each other to prevent the pipe type sensor from contacting the sensor guide pipe.

Preferably, at least one rod-shaped sensor may be provided under the pipe-type sensor.

Preferably, the plurality of bar-shaped sensors are provided at their lower ends with an attachment cap which is in contact with the bottom of the tank.

Preferably, the support portion includes a plurality of support legs, one end of which is fixed to the outside of the lower end portion of the sensor guide pipe and the other end is supported at the bottom of the tank, and the other end portion is tapered outward As shown in FIG.

According to another aspect of the present invention, in the apparatus for detecting the remaining amount of the fuel supply tank,

And a sensor for detecting water stored in the tank in the longitudinal direction inside the fuel supply tank, wherein a support portion contacting the bottom of the fuel supply tank is provided at a lower portion of the sensor to detect low level water in the tank The remaining number of fuel supply tanks is detected.

The apparatus for detecting the remaining amount of fuel in the fuel supply tank according to the present invention can be easily applied to a ship requiring a minimum remaining water level alarm by minimizing the dead zone in the fuel supply tank, So that the maintenance can be performed even in the presence of the fluid.

1 is a schematic view showing an example of a device capable of detecting the remaining number of fuel supply tanks.
Fig. 2 is a schematic view showing a device for detecting the remaining number of fuel supply tanks in a league line according to the present invention. Fig.

In order to fully understand the advantages of the present invention, its operational advantages, and the objects attained by the practice of the present invention, reference should be made to the accompanying drawings, which illustrate preferred embodiments of the present invention, and to the description in the accompanying drawings.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

The apparatus for detecting the remaining amount of the fuel supply tank according to the present invention described below can be applied to a container ship having a fuel oil storage tank including all the leagons, or all other vessels.

2 schematically shows a device for detecting the remaining number of fuel supply tanks in a league line according to the present invention.

As shown in FIG. 2, the apparatus for detecting the remaining number of fuel supply tanks in a league line according to an embodiment of the present invention includes a pipe-type fuel supply system for detecting the water stored in the fuel supply tank, A sensor guide pipe 200 surrounding and enclosing the pipe type sensor 100 and having a lower end adjacent to the bottom TB of the fuel supply tank, And a support portion 400 for stably supporting the lower end portion on the tank bottom TB.

The pipe-type sensor 100 may be provided to extend in a longitudinal direction (for example, a vertical direction) inside the fuel supply tank to a position adjacent to the tank bottom T.B.

The sensor guide pipe 200 is a protective member which is formed in a pipe shape to surround and protect the pipe-type sensor 100 inside the pipe-type sensor 100.

On the surface of the sensor guide pipe 200, a plurality of fluid flow holes 211 through which the fluid in the tank can enter and exit are formed at random intervals or at random intervals. A fluid such as oil and water can freely flow in and out of the tank through the fluid flow hole 211 so that fluid in the tank can flow between the sensor guide pipe 200 and the pipe type sensor even if there is sloshing or oil in and out. The same can be filled in the space.

The sensor guide pipe 200 includes a large diameter portion 210 having a predetermined length and a tapered portion 220 tapering to converge at one end (lower end portion) of the large diameter portion 210, And a small-diameter portion 230 extending from one end (lower end) of the tapered portion 220 toward the bottom of the tank.

The sensor guide pipe 200 is preferably made of PTFE.

A plurality of rod-shaped sensors 300 may be provided at a lower end of the pipe-type sensor 100, and the rod-shaped sensors 300 may be spaced apart from each other. The bar-shaped sensors 300 are installed to be spaced apart from each other to provide a fluid flow space, thereby minimizing flow resistance or turulence while supporting the lower end of the pipe-type sensor on the bottom of the tank.

The bar-shaped sensor 300 is made of, for example, a water-sensing electrode that senses water using a difference in resistance value between water and oil, or a physical sensor (for example, floating type) that uses a density difference between water and fuel It is possible.

At the lower end (tank bottom side end) of the plurality of rod-shaped sensors 300, an attaching cap 310, which is in contact with the tank bottom TB, is provided so that the pipe- And it is possible to prevent the pipe type sensor 100 or the rod type sensor 300 from being damaged by friction with the tank bottom TB during the flow of the fluid due to the sloshing of the fluid inside the tank. The attachment cap 310 may be made of Teflon (PTFE), for example.

The support portion 400 is fixed at one end to the outer side (outer edge) of the lower end of the sensor guide pipe 200, preferably outside the small diameter portion 230 described above, and the other end is fixed to the tank bottom TB. And the other end thereof is tapered outwardly from one end thereof. Preferably, the support legs are three or more (at least three) and are attached at regular intervals in the outer circumferential direction of the lower end of the sensor guide pipe 200 for stable support.

The dead zone of the fuel supply tank from the bottom TB of the fuel supply tank is minimized (approximately 50 mm) even if the apparatus for detecting the remaining amount of fuel supply tank according to the present invention includes the height (thickness) , It can be preferably employed in a fuel oil service tank of a league line requiring a minimum remaining water level alarm at, for example, 120 mm.

The apparatus for detecting the remaining amount of fuel supply tanks according to the present invention as described above can be applied not only to the league line but also to container ships having fuel oil storage tanks or all other vessels. The dead zone in the fuel supply tank is minimized It is possible to easily apply to a ship requiring a minimum remaining water level alarm, particularly a league line, and without requiring a separate fixing device for preventing rocking of the detecting device, There is an advantage.

Although the present invention has been described with reference to the drawings, the present invention is not limited to the embodiments and drawings described above, It will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention.

100: Pipe type sensor
200: Sensor guide pipe
210: Large neck
211: fluid flow hole
220: taper portion
230: Small neck
300: rod sensor
310: Attachment cap
400: Support
TB: fuel supply tank bottom

Claims

An apparatus for detecting the remaining number of fuel supply tanks,
A pipe type sensor installed longitudinally inside the fuel supply tank and sensing water stored in the tank;
A sensor guide pipe enclosing and protecting the pipe type sensor and having a lower end adjacent to the bottom of the fuel supply tank; And
And a support for stably supporting the lower end of the sensor guide pipe to the bottom of the tank.

The method according to claim 1,
And the lower portion of the pipe-type sensor is provided so as to be adjacent to the bottom of the tank.

The method according to claim 1,
Wherein the sensor guide pipe is a pipe type enclosing the pipe type sensor,
Wherein a plurality of fluid flow holes are formed in a surface of the sensor guide pipe so that fluid can flow in and out.

The method of claim 3,
The sensor guide pipe is made of Teflon (PTFE)
The sensor guide pipe has a large-diameter portion having a predetermined length; A tapered portion converging at one end of the large diameter portion; And a small-diameter portion extending from the tapered end of the tapered portion toward the bottom of the tank.

The method according to claim 1,
Wherein a plurality of protection rings surrounding the pipe type sensor are spaced apart from each other to prevent contact between the pipe type sensor and the sensor guide pipe.

The method of claim 5,
Wherein at least one bar type sensor is provided under the pipe type sensor.

The method of claim 6,
Wherein the plurality of rod-like sensors are provided at their lower ends with an attachment cap which is in contact with the bottom of the tank.

[2] The apparatus according to claim 1,
And a plurality of support legs, one end of which is fixed to the outside of the lower end of the sensor guide pipe and the other end of which is supported at the bottom of the tank, and the other end is tapered outwardly from one end The fuel supply system comprising:

An apparatus for detecting the remaining number of fuel supply tanks,
A sensor installed in the fuel supply tank in the longitudinal direction for sensing water stored in the tank, a sensor guide pipe surrounding and protecting the sensor, and a protection ring for preventing contact between the sensor and the guide pipe, Wherein one end is fixed to the outside of the lower end portion of the sensor guide pipe and the other end is provided with a support portion contacting the bottom of the fuel supply tank so that water at a low level can be sensed inside the tank. Detection device.