KR102018428B1 - Tank having leakage detection function - Google Patents

Abstract

The present invention relates to a content storage tank having a leak detection function, and more particularly, to a resin having pores as a leak detection layer in a steel body of a tank in which various oils, chemicals, industrial waste water, industrial water, and the like are stored. And forming a sand layer and forming a rust-free FRP fiber reinforcement layer as an outer wall, thereby securing and reinforcing the safety of the leak detection layer while detecting leakage of flow rate or water by firm attachment of the resin and sand layer as the leak detection layer. In addition, the formation of the FRP fiber reinforcement layer not only prevents corrosion of the tank completely, but also has a leak detection function that can prolong the life of the tank by preventing cracks and damage to the tank due to external impact. Relates to a storage tank.

Description

Tank having leakage detection function

The present invention relates to a content storage tank having a leak detection function, and more particularly, to a resin having pores as a leak detection layer in a steel body of a tank in which various oils, chemicals, industrial waste water, industrial water, and the like are stored. And forming a sand layer and forming a rust-free FRP fiber reinforcement layer as an outer wall, thereby securing and reinforcing the safety of the leak detection layer while detecting leakage of flow rate or water by firm attachment of the resin and sand layer as the leak detection layer. In addition, the formation of the FRP fiber reinforcement layer not only prevents corrosion of the tank completely, but also has a leak detection function that can prolong the life of the tank by preventing cracks and damage to the tank due to external impact. Relates to a storage tank.

In general, oil storage tanks used in gas stations or reservoirs have been mostly coated with antirust coatings on the outer surface of steel bodies and buried underground.

However, this type of oil storage tank is damaged by external temperature changes, various chemical stimuli or reactions, or mechanical external pressure, and the steel body is exposed to the external environment, leading to cracking and corrosion of the tank, and leakage of stored oil. Of course, the property damage caused by this, and causing the serious environmental pollution caused by this has become a big problem.

That is, in the event of a leak of oil stored in the oil storage tank, a large fire may cause human and property damage, as well as a serious condition due to soil and water pollution in a wide area. The situation is always holding.

Therefore, in order to solve the above problems, a leakage sensing layer using polyethylene mesh is formed between the steel tank body and the outer wall. However, the polyethylene mesh has a very poor adhesion due to the properties of the material, and thus the external sensing layer is easily cracked. As it can be generated, it is an ongoing problem in terms of leak detection and tank stability.

Korea Utility Model Registration No. 20-0269552 (2002.03.22)

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide resins and sand having pores as leak detection layers in a steel body of a tank in which various oils, chemicals, industrial wastewater, and industrial water are stored. By forming a layer and forming an rust-free FRP fiber reinforcement layer as an outer wall, it is possible to secure the safety of the leak detection layer between the double walls while easily detecting the leakage of flow rate or water by the solid attachment of the resin and the sand layer as the leak detection layer. Accordingly, to provide a content storage tank having a leak detection function that can enhance the firm safety of the tank.

Another object of the present invention, the formation of the FRP fiber reinforcing layer can not only completely prevent the corrosion of the tank, but also prevents cracking and damage to the tank due to external impact, leak detection function that can significantly extend the life of the tank It is to provide a content storage tank having a.

Another object of the present invention is to form a resin layer and a sand layer and a FRP fiber reinforcement layer as a leak detection layer on the inner surface of the steel tank body, so that when the contents storage tank is installed inside the building, Contents storage tank with leakage detection function that prevents the spread of fire in the event of a fire and easily detects leakage of flow rate or water, and protects and extends the life of the tank by forming the FRP fiber reinforcement layer. To provide.

Still another object of the present invention is to connect the leak detection tube to the lower side of the steel tank body, so that the contents leaked by its own weight through the pores of the lower sand layer at the time of leakage of the contents directly through the through hole leak detection tube It is to provide a content storage tank having a leak detection function to detect the leakage of the contents quickly by flowing to the.

Contents storage tank having a leak detection function according to the present invention for achieving the above object, the steel tank body in which the contents are stored; Sand layer by mixing the resin and sand on the surface of the steel tank body; An FRP fiber reinforcement layer formed on the sand layer; A leak detection tube communicating with the sand layer through a hole; And a leak detection sensor installed in the leak detection tube to detect a flow rate or water leaking into the pores in the sand layer.

Here, the sand layer and the FRP fiber reinforcement layer is preferably formed on the inner surface of the steel tank body.

In addition, a primer coating layer may be formed on the surface of the steel tank body, and a resin layer may be further formed between the primer coating layer and the sand layer and between the sand layer and the FRP fiber reinforcement layer.

Moreover, it is preferable that the said FRP fiber reinforcement layer consists of resin and glass fiber.

In addition, the leak detection tube is fixed to the lower surface of the steel tank body by welding so that the contents leaking directly by the weight through the pores of the lower sand layer when the contents leak, flows directly through the hole and leaks It is preferable to be detected by a detection sensor.

In addition, it is preferable to form a surface top coating finish layer by applying a gel coat on the FRP fiber reinforcement layer.

In addition, it is preferable that the steel tank body is made of carbon steel and has a thickness of 4.5 mm to 6.5 mm, and the sand layer has a thickness of 4.5 mm to 6.5 mm.

According to the contents storage tank having a leak detection function according to the present invention described above, resins and sand having pores as leak detection layers in the steel body of various tanks in which various oils, chemicals, industrial waste water, industrial water, and the like are stored. By forming a layer and forming an rust-free FRP fiber reinforcement layer as an outer wall, it is possible to secure the safety of the leak detection layer between the double walls while easily detecting the leakage of flow rate or water by the solid attachment of the resin and the sand layer as the leak detection layer. Therefore, there is an effect that can reinforce the safety of the tank.

In addition, the formation of the FRP fiber reinforcement layer can not only completely prevent the corrosion of the tank, but also has the advantage of significantly extending the life of the tank by preventing cracks and damage to the tank due to external impact.

In addition, the inner surface of the steel tank body can form a resin layer and sand layer as a leak detection layer and an FRP fiber reinforcement layer, and when the contents storage tank is installed inside the building, the steel tank body is exposed to the outside in case of fire. The present invention provides a contents storage tank having a leak detection function that can easily detect a leak of a flow rate or water while preventing the spread of a fire and can protect and extend the life of the tank by forming an FRP fiber reinforcing layer.

In addition, the leak detection tube is connected to the lower side of the steel tank body so that the contents leaked by its own weight through the pores of the lower sand layer flows directly through the through-hole to the leak detection tube when the contents leak. It also has the effect of detecting leakage and taking immediate action.

In addition, the resin, sand layer and FRP fiber reinforcement layer as a leak detection layer are not only easily repaired, but also easy to maintain, thereby reducing costs, and customized tanks can be manufactured and colors can be changed according to customer requirements. There are also advantages.

1 is a schematic diagram of a contents storage tank having a leak detection function according to an embodiment of the present invention.
2 is a schematic perspective view of a contents storage tank having a leak detection function according to an embodiment of the present invention.
Figure 3 is a detailed view of the outer wall structure of the contents storage tank having a leak detection function according to an embodiment of the present invention.
4A and 4B are schematic views showing an example in which a resin layer as a leak detection layer, a sand layer, and an FRP fiber reinforcement layer are installed on the inner and outer surfaces of the steel tank body according to the present invention, respectively.
5 is a detailed view illustrating a leak detection structure of a content storage tank having a leak detection function according to an exemplary embodiment of the present invention.

The present invention can be embodied in many other forms without departing from the spirit or main features thereof. Therefore, the embodiments of the present invention are merely examples in all respects and should not be interpreted limitedly.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms.

The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be.

On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms "comprise", "comprise", "have", and the like are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification. Or other features or numbers, steps, operations, components, parts or combinations thereof in any way should not be excluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art.

Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, the most preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. .

1 is a schematic diagram of a contents storage tank having a leak detection function according to an embodiment of the present invention, Figure 2 is a schematic perspective view of a contents storage tank having a leak detection function according to an embodiment of the present invention, 3 is a detailed view of the outer wall structure of the contents storage tank having a leak detection function according to an embodiment of the present invention, Figures 4a and 4b are respectively shown as a leak detection layer on the inner and outer surfaces of the steel tank body according to the present invention; 5 is a schematic view showing an example in which a resin layer, a sand layer, and an FRP fiber reinforcement layer are installed, and FIG. 5 is a detailed view illustrating a leak detection structure of a contents storage tank having a leak detection function according to an embodiment of the present invention.

As shown, the contents storage tank 100 having a leak detection function according to an embodiment of the present invention, the steel tank body 10, the contents are stored therein; A resin layer 20 and a sand layer 30 as content leakage sensing layers formed on the surface of the steel tank body 10; An FRP fiber reinforcement layer 40 formed on the sand layer 30; A leak detection tube 50 communicating with the sand layer 30 through a hole 31; And a leak detection sensor 60 installed in the leak detection tube 50 to detect a flow rate or water leaking into the sand layer 30.

Here, in the illustrated example, the content storage tank 100 having a leak detection function according to an embodiment of the present invention represents an oil storage tank in which oil and manholes are installed, but not only oil storage, but also chemical storage and solution. It is equally applicable to various storage tanks used for transport storage, food storage, industrial waste water storage, and industrial water storage, and can be applied to various kinds of customized or standard tanks according to customer's order. Can be produced by changing the appearance color.

The steel tank body 10 forms the overall body of the contents storage tank 100 having a leak detection function according to an embodiment of the present invention, the steel plate suitable for the type approval standard proposed by Korea Fire Protection Corporation (7mm) ~ 8mm) is preferably used to produce a carbon steel sheet by performing internal and external welding, it is preferable to minimize the welding site and to be very structurally stable, but the type and thickness are not limited.

The outer surface of the steel tank body 10 may be further formed with a rustproof coating, in this case, the rustproof coating is preferably a tar epoxy-based, but the material is not limited.

The resin layer 20 is formed by applying an adhesive resin on the surface (outside or inside) of the steel tank body 10.

At this time, before forming the resin layer 20, a primer (PRIMER) coating operation is performed on the outer surface of the steel tank body 10 (or the outer surface of the rustproof coating film 11) to form a primer coating layer. It is preferable to remove foreign substances and moisture on the inner and outer surfaces of (10).

The sand layer 30 is evenly sprayed with sand on the resin layer 20 as an adhesive applied to the primer-treated surface of the steel tank body 10 as described above to form the entire surface of the steel tank body 10 evenly.

The content leak detection layer by the resin layer 20 and the sand layer 30 forms pores that can detect the leakage of the content, and flow or moisture flows through the leak detection layer to contact the leak detection sensor 60. It is to be detected.

The thickness of the resin layer 20 and the sand layer 30, which are the contents leakage detecting layer, is preferably 4.5 mm to 6.5 mm (most preferably about 5 mm).

The sand layer 30 preferably includes a certain amount of resin to have adhesiveness and adhesion. At this time, the ratio (weight ratio) of sand and resin is preferably 7.5 to 8.5: 1.5 to 2.5 (most preferably 8: 2) for adhesion and pore formation.

In addition, the type (standard) of sand, which is a material of the sand layer, is preferably a mixture of No. 3 and No. 4, and at this time, the No. 3 (60%) + No. 4 (40%) ratio is most preferably used.

In this way, by firmly attaching the sand layer 30 to the resin layer 20 as an adhesive to about 5 mm, the leakage of the contents can be automatically detected by the formation of pores of the sand layer 30, and as The reliable and robust attachment of the resin layer 20 and the sand layer 30 greatly extends the protective life of the leak detection layer and the tank, so that any other leak detection layer of any kind having poor adhesion (e.g., adhesive force as in the prior art Very low and this leads to an interlayer separation between the tank's wall and the FRP reinforcement layer, which is not replaceable with polyethylene mesh, which is a problem in stability.

Meanwhile, in the illustrated example, the resin layers 20 and 33 are applied to increase the adhesion of the sand layer 30, and the sand mixed with the resin at the above-described composition ratio is sprayed evenly so as to adhere to the resin layer. However, the sand layer 30 may be formed by mixing sand and resin, for example, by spraying and laminating the primer-treated surface without forming a separate resin layer.

The FRP fiber reinforcement layer 40 is formed by laminating reinforcing fibers on the surface of the sand layer 30.

Before the formation of the FRP fiber reinforcement layer 40, it is preferable to further form a resin layer 32 on the surface of the sand layer 30 to maintain adhesiveness, but this is optional.

Reinforcing fibers for forming the RP fiber reinforcing layer 40 is preferably a composition containing a resin and glass fibers.

In addition, a nonwoven fabric or the like may be included as reinforcing materials other than the resin and glass fiber.

As such, the formation of the anti-rust FRP fiber reinforcement layer 40 on the surface of the steel tank body 10 can not only completely prevent corrosion of the contents storage tank 100 but also prevent damage and damage to the tank due to external impact. By preventing the FRP characteristics, the tank can be completely protected than any other type of outer wall, thereby greatly extending the life of the tank.

Here, after the formation of the RP fiber reinforcement layer 40, it is preferable to apply a gel coat (finish layer) to the surface top coating finish.

Meanwhile, in the present invention, the resin layer 20 and the sand layer 30 as the leak detection layer and the FRP fiber reinforcement layer 40 are formed on the outer surface (outside) of the steel tank body 10 (see FIG. 4B). However, when installing the contents storage tank 100 having a leak detection function according to an embodiment of the present invention inside the building, as shown in Figure 4a, the FRP fiber reinforcement layer exposed to the outside when a fire occurs (40) Since itself may be vulnerable to fire, a form of exposing the steel tank body 10 to the outside is required. Therefore, even if the steel tank body 10 is exposed to the outside to prevent the fire of the tank indoors, leakage to the inner surface (inside) of the steel tank body 10 for the tank outer wall reinforcement structure together with the detection of the contents leakage of the tank. The resin layer 20 and the sand layer 30 as the sensing layer and the FRP fiber reinforcement layer 40 are formed.

Unexplained reference numeral 1 is a manhole in which an oil supply pipe, an infusion pipe, a vent pipe, etc. are installed, unexplained reference numeral 2 is a fixing band for fixing to the bottom base, and unexplained reference numeral 3 indicates a bottom balance of the tank. It's a base cushion. Such a configuration is not an essential configuration in the present invention, it will be understood that it can be properly installed if necessary.

As shown in FIG. 5, the leak detection tube 50 is installed to protrude into the steel tank body 10, and is installed to communicate with the sand layer 30 through the hole 31.

The leak detection tube 50 is preferably fixed to the lower surface of the steel tank body 10, for example, by welding or the like, and immediately leaks due to its own weight through the pores of the lower sand layer 30 when the contents are leaked. It is preferable to allow the contents to flow directly through the hole 31.

The leak detection sensor 60 is installed in the leak detection tube 50 to detect when a content such as flow rate or moisture flows down directly through the hole 31 to automatically grasp a leak state of the content from the outside. It is possible to immediately identify leaks and take action.

As a kind of the leak detection sensor that can detect the contents such as flow rate and moisture, various sensors may be appropriately used according to the type of contents such as a contact sensor, a capacitive sensor, and a dielectric constant sensor. It is not limited.

It will be appreciated that the present invention is not limited to the form mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and substitutes within the spirit and scope of the invention as defined by the appended claims.

100: contents storage tank with leak detection function
1: manhole 2: fixing band
3: base cushion
10: steel tank body
20, 33: resin layer
30: sand layer 31: hall
40: FRP fiber reinforcement layer
50: leak detection tube
60: leak detection sensor

Claims (8)

Contents are stored therein, the steel tank body exposed to the outside from the inside of the building;
Sand layer by mixing the resin and sand on the surface of the steel tank body;
An FRP fiber reinforcement layer formed on the sand layer;
A leak detection tube communicating with the sand layer through a hole; And
It is installed in the leak detection tube is made of a leak detection sensor for detecting the flow rate or moisture to the pores inside the sand layer,
The sand layer and the FRP fiber reinforcement layer is formed on the inner surface of the steel tank body,
The sand layer has a ratio (weight ratio) of 7.5 to 8.5: 2.5 to 1.5, including a resin layer, for adhesion and pore formation,
The leak detection tube is fixed to protrude by welding on the lower surface of the steel tank body so that the contents leaking directly by the own weight through the pores of the lower sand layer when the contents leak, flow down directly through the hole. Contents storage tank having a leak detection function, characterized in that detected by the leak detection sensor. delete The method of claim 1,
A primer coating layer is formed on a surface of the steel tank body, and a resin layer is further formed between the primer coating layer and the sand layer, and between the sand layer and the FRP fiber reinforcement layer, respectively. Contents storage tank having a. The method of claim 1,
The content storage tank having a leakage detection function, characterized in that the FRP fiber reinforcement layer comprises a resin and glass fibers. delete The method of claim 1,
And a gel coat on the FRP fiber reinforcement layer to form a surface top coating finish layer. The method of claim 1,
The steel tank body is made of carbon steel, the thickness of 4.5mm to 6.5mm, the sand layer has a thickness of 4.5mm to 6.5mm, the contents storage tank having a leak detection function. delete

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