KR101761169B1

KR101761169B1 - Storage tank for oil

Info

Publication number: KR101761169B1
Application number: KR1020150161700A
Authority: KR
Inventors: 강웅구; 신태암; 정지익
Original assignee: (주)유원
Priority date: 2015-11-18
Filing date: 2015-11-18
Publication date: 2017-07-25
Also published as: KR20170058024A

Abstract

According to the present invention, in the oil storage tank, a metal tank 10 made of a metal material for storing oil, a first frp coating film 20 coated with frp resin on the outer circumferential surface of the metal tank 10, And a second frp coating film (40) coated on the outer circumferential surface of the oil leakage detection layer (30) with frp resin, the oil storage tank (30) / RTI >

Description

Storage tank for oil

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an oil storage tank embedded in an underground, and more particularly, to a oil storage tank capable of efficiently detecting leakage that may occur when buried underground, and improving durability of the storage tank .

Generally, most of oil storage tanks used in gas stations or petrol stations are rustproof painted on the outer surface of steel body and buried underground.

However, in this type of oil storage tank, the rustproof paint layer is pulled by external temperature change, various chemical stimuli, reaction or mechanical external pressure, and the body of the iron is exposed to the outside diameter of the oil storage tank, leading to cracking or corrosion of the tank, Resulting in property damage and serious environmental pollution.

In addition, there is no separate device for leakage detection of the tank, so that it is possible to detect the leakage of the oil only after the leakage has proceeded to a serious state.

In this regard, according to the Utility Model Registration No. 20-0354097, as shown in FIG. 1, attempts have been made to provide a FRP tank on a separation membrane after forming a separation membrane for a steel tank, There is a problem in that corrosion of the steel tank due to the protection of the temperature and humidity can not be fundamentally solved in the separator.

In addition, due to the nature of the separator between the steel tank and the FRP tank, the FRP can not be formed tightly against the steel tank, thereby resulting in a relatively low durability and rigidity.

Therefore, development of a technique capable of solving such a problem is required.

Accordingly, it is an object of the present invention to provide an oil storage tank capable of improving durability due to corrosion of an iron tank in a oil storage tank.

Another object of the present invention is to provide a fuel storage tank capable of improving the tightness between the FRP tank and the steel tank, which can be generated according to the formation of the separation membrane for oil leakage detection of the oil storage tank.

Here, the first frp coating film 20 may be formed by coating sandblast or primer on the outer circumferential surface of the metal tank 10 and then coating the frp resin, or the first frp coating film 20 may be directly coated on the metal tank 10, It is preferable to apply pressure to the surface of the substrate.

On the other hand, it is preferable that the inner and outer surfaces of the leak detection layer 30 are made of a separation membrane having an interface activity with respect to the frp resin.

Further, it is preferable that the leakage detection layer 30 is made of a structure of a partition wall.

Further, it is preferable that the barrier structure of the leak detection layer 30 is formed in the form of a net.

In addition, it is preferable that the outer periphery of the mesh network further includes a frp coating layer 32 coated with a frp resin layer.

The first frp coating film 20, the oil leakage detection layer 30 and the second frp coating film 40 provided outside the metal tank 10 have the same chemical properties to form the oil tank more tightly, Can be improved more efficiently, and the workability can be improved due to the same chemical characteristics.

1 is a schematic perspective view of a conventional oil storage tank.
2 is a schematic partial cutaway perspective view of a oil storage tank according to a preferred embodiment of the present invention.
3 is a schematic partial cutaway perspective view of a oil storage tank according to a preferred version of the present invention.
4 is an enlarged view of a portion A in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic partial cutaway perspective view of a oil storage tank according to a preferred embodiment of the present invention.

2, the oil storage tank according to the preferred embodiment of the present invention includes a metal tank 10 made of a metal material for storing oil, a first frp (not shown) coated with frp resin on the outer circumferential surface of the metal tank 10, (30) for detecting leakage of oil onto the outer surface of the coating film (20), the first frp coating film (20), and a second frp coating film (40) coated on the outer circumferential surface of the oil leakage sensing layer The oil storage tank is provided.

The metal tank 10 is made of a conventional cylindrical tank for storing the oil.

The first frp coating film 20 may be formed by applying a sandblast or a primer to the outer circumferential surface of the metal tank 10 and then coating the frp resin on the outer surface of the metal tank 10. However, As shown in Fig.

The leak detection layer 30 is formed as a leak detection layer including a sensor for detecting leakage of oil on the first frp coating film 20.

The leakage sensing layer 30 is preferably a spacing layer that provides a space for temporarily preventing leakage due to breakage of the metal tank 10 and the first frp coating 20. At this time, the inner and outer surfaces of the leak detection layer 30 are preferably made of a separation membrane having an interfacial activity with respect to the frp resin.

A second frp coating film 40 made of frp resin is applied on the separation membrane constituting the leak detection layer 30.

At this time, since the separation membrane constituting the leak detection layer 30 has a surfactant state with respect to the frp resin of the first frp coating film 20, the first frp coating film 20 and the second frp coating film 40 are leak- It is possible to maintain a close interfacial adhesion state through the separation membrane which is the layer 30. The first frp coating film 20 applied to the outer circumferential surface of the metal tank 10 and the separation membrane serving as the leak detection layer 30 and the second frp coating film 40 are kept in tight contact with each other, It is possible to improve the durability for preventing the occurrence of leakage.

According to a preferred embodiment of the present invention, as shown in FIG. 2, the oil leakage sensing layer 30 may be a structure of a partition wall.

In the oil storage tank according to a preferred modification of the present invention, the same components as those of the above-described embodiment are denoted by the same reference numerals, and a description thereof will be omitted.

According to a preferred modification of the present invention, the leak detection layer 30 is provided in the space between the first frp coating layer 20 and the second frp coating layer 40, In order to form the state, the leak detection layer 30 is made of the structure of the partition wall. At this time, it is preferable that the barrier structure of the leak detection layer 30 is formed in the form of a net, as shown in Fig.

The barrier layer structure of the leak detection layer 30 is formed in the form of a net and is wrapped around the outer circumferential surface of the first frp coating layer 20. The outer circumferential surface of the net is formed into a frp resin layer It is more preferable to further include the frp coating layer 32 to be coated.

The outer peripheral edge of the frp coating layer 32 is coated with the frp resin layer so that frp is formed on the surface in contact with the first frp coating film 20 and the surface in contact with the second frp coating film 40, It is preferable to be coated with the resin layer so as to be exposed. The first frp coating film 20 and the second frp coating film 40 which are in contact with the outer periphery of the leak detection layer 30 are made of the frp resin layer having the same chemical properties, Since the first frp coating film 20, the oil leakage sensing layer 30 and the second frp coating film 40, which are provided, have the same chemical properties, the oil tank is formed more tightly and durability can be improved more efficiently, Workability can be improved due to the same chemical properties.

10: Metal tank
20: First frp coating film
30: Leak detection layer
32: frp coating layer
40: second frp coating film

Claims

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In the oil storage tank,
A metal tank (10) made of a metal material for storing oil;
A first frp coating film (20) coated on the outer circumferential surface of the metal tank (10) with frp resin;
A leakage sensing layer (30) for sensing leakage and preventing leakage of oil onto the outer circumferential surface of the first frp coating film (20); And
And a second frp coating film (40) coated on the outer circumferential surface of the leak detection layer (30) with frp resin,
Characterized in that the inner and outer surfaces of the leak detection layer (30) are made of a separation membrane having an interfacial activity with respect to the frp resin.

4. The oil storage tank according to claim 3, wherein the leakage sensing layer (30) comprises a structure of a partition wall.

The oil storage tank according to claim 4, wherein the barrier structure of the leakage sensing layer (30) is in the form of a net.

The oil storage tank according to claim 5, wherein the outer periphery of the mesh further comprises frp coating layer (32) coated with a frp resin layer.