KR101987051B1 - A recyclable bag for transformers - Google Patents

Abstract

The present invention relates to an eco-friendly and recyclable transformer bag used to prevent damage to an outer sheath and a bushing of a power transformer, easily performed during carriage for storage, lifting, and construction after manufacturing the power transformer, thereby preventing reduction in durability of the transformer and environmental pollution caused due to leak of insulating oil. Moreover, human body pollution and environmental pollution caused due to leak of poly chlorinated biphenyl (PCB) fatal to a human body can be prevented to secure safety against a harmful and dangerous substance.

Description

{A RECYCLABLE BAG FOR TRANSFORMERS}

The present invention relates to a transformer for a power transformer, which prevents damage to the enclosure and bushing of the transformer, which is likely to occur during transportation for storage, lifting and construction, thereby preventing a reduction in the life of the transformer and preventing environmental pollution As used herein,

The present invention relates to an eco-friendly transformer bag that is environmentally friendly and safe to be recycled while preventing the human body pollution and environmental pollution caused by the leakage of polychlorinated biphenyl (PCB), which is fatal to the human body.

There are two main types of transformers currently in use for electric power. It is inflow type and mold type. The above-mentioned inflow type is mainly used for outdoor use, and the mold type is mainly used for a self-contained power receiving facility.

KEPCO is a general electric utility with a lot of facilities, and about 2.2 million inflow transformers are installed in Jeonju and are responsible for electric power supply.

This transformer has several stages of transportation and handling from manufacture to transportation installation, which will naturally cause various damage to the enclosure and the outer parts. This leads directly to corrosion and breakage of the enclosure, shortening the life span.

Most transformers use mineral oil as insulating oil, and the mineral oil contains a significant amount of PCBs that are fatal to the human body. There is a case where the insulation oil is erroneously flowed out during the installation work of the transformer at a close place where people are concentrated or during transportation, and this can put a very dangerous situation to all people including the worker.

Therefore, measures to solve such problems are urgent.

The present invention proposes a technique for preventing breakage of an enclosure that may occur during the manufacture, transportation, and installation of a transformer and preventing leakage of insulating oil.

The present invention also provides a transformer bag that prevents damage to the enclosure due to contact, dragging, external impact or the like during transportation or installation work of the transformer, and even if the insulation oil of the transformer leaks or spills during operation, To provide a transformer bag that is free from leakage to the transformer and that can withstand the weight of the transformer and prevent damage to the enclosure.

Korean Registered Patent No. 10-0918308 (Registration date 2009.09.14) Korea Registered Utility Model 20-0479149 (Registered on Dec. 17, 2015) Korean Registered Patent No. 10-1872880 (Registration date 2018.06.25)

The present invention relates to a transformer for a power transformer, which prevents damage to the enclosure and bushing of the transformer, which is likely to occur during transportation for storage, lifting and construction, thereby preventing a reduction in the life of the transformer and preventing environmental pollution As used herein,

In particular, it is an object of the present invention to provide an eco-friendly transformer bag that is environmentally friendly and recyclable, while preventing human pollution and environmental pollution caused by leaking PCB (Polychlorinated Biphenyl) .

In order to achieve the above object,

The present invention relates to a bag made of a fabric used for lifting a transformer after receiving the transformer therein and for preventing the insulating oil flowing out from the transformer from escaping to the outside of the bag, The present invention provides a recyclable eco-friendly transformer bag including a watertight portion and a watertight portion at the front or lower end.

More specifically,

As a first embodiment,

A body portion having a cylindrical or polygonal tubular shape having a closed front surface excluding the upper surface using a fabric and configured to receive the transformer therein,

An upper cover part integrally connected from an upper end of the body part to completely cover the transformer housed in the body part and to tighten the upper part with a clamping strap,

A lifting strap portion formed on an outer surface of the body portion so as to protrude above the body portion in a lattice structure or a vertical stripe structure and to be lifted by being hooked on a latching ring of the lifting device when the transformer bag is moved;

And a waterproof and shielding portion formed at a lower end portion of the body portion to prevent the insulating oil flowing out from the transformer accommodated in the body portion from escaping to the outside of the bag. The transformer bag is entirely coated with anti- Friendly transformer bag which can be recycled without any problem even if it is exposed to ultraviolet rays of the present invention.

As a second embodiment,

A body portion having a cylindrical or polygonal tubular shape having a closed front surface excluding the upper surface using a fabric and configured to receive the transformer therein,

An upper cover part integrally connected from an upper end of the body part to completely cover the transformer housed in the body part and to tighten the upper part with a clamping strap,

And a pull ring fixedly formed on an outer surface of a transformer accommodated in the body portion is exposed to the outside of the body portion, and the pull ring is lifted up from the lifting wire of the lifting device, An impression ring pocket configured to be lifted up by the transformer housed in the body portion,

And a waterproof and shielding portion formed at a lower end portion of the body portion to prevent the insulating oil flowing out from the transformer accommodated in the body portion from escaping to the outside of the bag. The transformer bag is entirely coated with anti- Friendly transformer bag which can be recycled without any problem even if it is exposed to ultraviolet rays of the present invention.

The eco-friendly transformer bag according to the first embodiment has a structure in which the tensile load of the transformer is applied over the entire bag, but the eco-friendly transformer bag according to the second embodiment has a structure in which the transformer itself accommodated in the bag is lifted So that the tensile load of the transformer is not applied to the bag at all.

In addition, the transformer bag according to the present invention connects the connecting portions between the fabric ends by a high-frequency sealing method, so that the waterproof function is reinforced by eliminating the bar portion.

The transformer bag according to the present invention has the following effects.

first. After the power transformer is manufactured, it is possible to prevent damage to the enclosure and bushing of the transformer, which is likely to occur during transportation for storage, lifting and construction. In addition, the surface of the transformer bag is coated with anti-UV agent, so that even if it is exposed to ultraviolet rays for a long time, the fabric is not damaged and the waterproof function is excellent. Therefore, Can be effectively prevented.

second. By configuring the waterproofing and drainage part for the front or lower part of the bag, environmental pollution can be prevented by preventing leakage of the insulating oil and leakage to the outside even if the oil is leaked or spilled during the transportation and installation work of the transformer. In particular, it has the advantage of being environmentally friendly and capable of being recycled by preventing the human body and environmental pollution caused by PCB leakage which is fatal to the human body.

third. By manufacturing the transformer in such a way that it can withstand the weight of the transformer sufficiently, or by accommodating the transformer inside the bag, by preventing the load from being applied to the bag itself, Stability can be ensured.

fourth. Transformer bag can be manufactured by using fabric having various characteristics suitable for lifting transformer. Especially, by using transparent fabric, it is possible to easily view the specification of transformer accommodated in bag.

In addition, the connection part between the fabrics constituting the transformer bag is made to have no part of the bar through high frequency sealing so that the functionality of the waterproofing and drainage part can be further reinforced. The outer surface of the bottom of the bag is highly stable by forming a protective layer using high-strength specialty fibers so that it can not easily be scratched even if it is attracted to the surface of a cement structure or the like.

1 is a perspective view of a transformer bag according to a first embodiment of the present invention in which a load of a transformer is applied to a bag itself.
Fig. 2 is a side view of a transformer bag according to a first embodiment of the present invention, in which a load of the transformer is applied to the bag itself; Fig.
Fig. 3 is a view of the state of use of a transformer bag according to a first embodiment of the present invention, in which a load of a transformer is applied to a bag itself; Fig.
4 is a flow diagram of a transformer mounting procedure using a transformer bag according to a first embodiment of the present invention in which a load of a transformer is applied to a bag itself.
FIG. 5 is a perspective view of a transformer according to a first embodiment of the present invention, in which a transformer bag having a transformer load is attached to a bag itself. FIG.
FIG. 6 is a perspective view of a transformer bag according to a second embodiment of the present invention in which a load of a transformer is not applied to a bag itself. FIG.
Figure 7 is a side view of a transformer bag according to a second embodiment of the present invention in which no load is applied to the transformer in the bag itself;
FIG. 8 is a second embodiment of the present invention, showing the state of use of a transformer bag in which a load of a transformer is not applied to a bag itself. FIG.
9 is a cross-sectional view showing a cross-sectional structure taken along the line AA in Fig.

Hereinafter, the technical construction according to the present invention will be described in detail with reference to the drawings.

The transformer bag 1 according to the present invention is a bag 1 made of a raw material used for lifting the transformer 300 after receiving the transformer 300 as shown in FIGS. 1 to 9, (40) at the front or lower end of the bag (1) to prevent the insulating oil flowing out of the bag (300) from escaping to the outside of the bag.

The transformer bag 1 according to the present invention can be divided into the first embodiment shown in Figs. 1 to 5 and the second embodiment shown in Figs. 6 to 8. Fig. The difference between the transformer bag 1 according to the first embodiment and the second embodiment is whether or not the load of the transformer 300 is applied to the bag itself.

That is, the transformer bag according to the first embodiment is a form in which the load of the transformer 300 is directly applied throughout, and the transformer bag according to the second embodiment includes the transformer 300 itself The load of the transformer 300 is not applied to the bag at all.

The transformer bag 1 according to the first embodiment is, as shown in Figs. 1 to 5,

A body 10 having a cylindrical or polygonal tubular shape with a front surface closed except the upper surface using a fabric to receive the transformer 300 therein,

An upper cover part 20 integrally connected from the upper end of the body part 10 and completely covering the transformer 300 housed in the body part 10 and then tightening the upper part using a clamping strap 201, Wow,

A lift band portion (not shown) formed on the outer surface of the body portion 10 so as to protrude above the body portion 10 in a lattice structure or a vertical stripe structure and to be lifted by hooking the hook of the lifting device when the transformer bag is moved 30,

And a waterproof and shielding part 40 formed at a lower end of the body part 10 and blocking the escape of the insulating oil flowing out from the transformer 300 accommodated in the body part 10 to the outside of the bag .

The transformer bag 1 according to the present invention shown through the first embodiment prevents the transformer enclosure from being damaged even if contact, dragging, external collision, or the like occurs during the transportation or installation work of the transformer 300 and,

It is possible to prevent the leakage of the dielectric oil of the transformer 300 from being leaked out of the transformer bag even if it spills during operation,

And has a high tensile strength sufficient to withstand the weight of the transformer 300 accommodated for lifting so that the transformer 300 can be reliably lifted.

The fabric comprising the body 10 and the upper cover 20 may be selected from the group consisting of synthetic fabrics or fabrics woven with natural fibers; A vinyl fabric having a waterproof function selected from transparent vinyl fabric, opaque vinyl fabric or translucent vinyl fabric; A composite vinyl fabric having a waterproof function selected from among a transparent vinyl fabric, an opaque vinyl fabric or a translucent vinyl fabric including therein a lattice yarn woven with synthetic fibers or natural fibers; Can be used.

More specifically,

The fabric of the first embodiment is manufactured by first coating a polyethylene (PE) or polypropylene (PP) raw fabric with a polyethylene (PE) film and then UV-

The anti-UV coating treatment is performed by mixing ethanol and ZnO powder at a weight ratio of 1: 1 to 2: 1 and then dispersing by stirring for 30 minutes to 1 hour and 30 minutes to prepare a ZnO colloid,

0.2 to 1.0 wt% of poly (vinyl acetate) and 99.0 to 99.8 wt% of ethanol are stirred at room temperature to form a first mixture,

40.0 to 60.0 wt% of TTIP (Titanium isopropoxide) and 40.0 to 60.0 wt% of distilled water were mixed to form a second mixture, and then the first mixture and the second mixture were mixed in a weight ratio of 1: 1 to form a third mixture ,

The third mixture is mixed with the ZnO colloid at a weight ratio of 1: 0.5 to 1 and reacted at 12 to 23 ° C for 5 to 7 hours to prepare mixed particles of ZnO and TiO ₂ ,

A fourth mixture composed of 60.0 to 70.0 wt% of a PVA solution obtained by adding PVA to distilled water at 65 to 75 ° C for 1 hour and 30.0 to 40.0 wt% of mixed particles of ZnO and TiO ₂ was subjected to a secondary coating treatment .

The fabric of the second embodiment is manufactured by first coating a raw material of polypropylene (PP) with a polyethylene (PE) film and then UV-

The anti-UV coating treatment is performed by mixing ethanol and ZnO powder at a weight ratio of 1: 1 to 2: 1 and then dispersing by stirring for 30 minutes to 1 hour and 30 minutes to prepare a ZnO colloid,

0.2 to 1.0 wt% of poly (vinyl acetate) and 99.0 to 99.8 wt% of ethanol are stirred at room temperature to form a first mixture,

40.0 to 60.0 wt% of TTIP (Titanium isopropoxide) and 40.0 to 60.0 wt% of distilled water were mixed to form a second mixture, and then the first mixture and the second mixture were mixed in a weight ratio of 1: 1 to form a third mixture ,

The third mixture is mixed with the ZnO colloid at a weight ratio of 1: 0.5 to 1 and reacted at 12 to 23 ° C for 5 to 7 hours to prepare mixed particles of ZnO and TiO ₂ ,

A fourth mixture composed of 60.0 to 70.0 wt% of a PVA solution obtained by adding PVA to distilled water at 65 to 75 ° C for 1 hour and 30.0 to 40.0 wt% of mixed particles of ZnO and TiO ₂ was subjected to a secondary coating treatment .

The polyethylene (PE) used in the fabric shown in the first and second embodiments is a high strength fiber having a molecular weight of 1,000,000 or more. The ultrahigh molecular weight polyethylene used in this case has good linearity of the molecular chain and small cross- Since the amount of free deformation is small at the time of the limit elongation, high strength and high elastic modulus are easy to obtain.

The polyethylene may be a high-strength polyethylene filament and may have a composite structure with a vinyl ester resin through surface modification in order to further increase the tensile strength.

The surface modification of the high-strength polyethylene fiber is performed using a 13.56 MHz RF plasma generator having a maximum output of 300 W,

The plasma processing time is set to 3 to 4 minutes within the range of electric power 50 W to 150 W,

The argon (Ar) gas is injected at a rate of 50 to 100 mTorr after the argon (Ar) is injected at a flow rate of 7 to 8 sccm and the initial state before the argon (Ar) The plasma processing is performed.

The change in the microstructure of the surface due to the etching effect of the plasma treatment improves the chemical and physical bonding at the interface with the vinyl ester resin, thereby achieving a firm bond.

The vinyl ester resin was applied to the surface-treated high-strength polyethylene fibers through the plasma treatment and then maintained at room temperature for 20 to 25 hours. The temperature was raised to 90 DEG C at a rate of 3 DEG C / min and then maintained for 15 to 20 minutes It is completed after hardening process.

The surface of the high-strength polyethylene fiber constituting the composite structure thus completed is coated with urethane to impart a waterproof function.

The urethane coating is completed by applying a water-soluble urethane at a thickness of 0.05 to 0.1 mm and then drying at 150 to 170 ° C for 1 to 3 minutes.

The body 10 is made of a high strength polyethylene fiber having a composite structure with a high strength polyethylene fiber or a vinyl ester resin, and has a tensile strength of 1,200 kg or more by coating the surface with water-soluble urethane, It can be pulled for tearing, does not break, and has high waterproof function.

The body 10 can be designed in various shapes, such as a cylindrical shape or a polygonal cylindrical shape. The cylindrical configuration is the basic configuration.

As shown in FIG. 5,

A belt 11 having a belt structure in the transverse direction can be additionally formed at the central portion so that the flow of the transformer 300 accommodated in the body portion 10 can be minimized.

An arm buckle 11a and a male buckle 11b are formed at one end and the other end of the belt 11 so as to be easily engaged and separated by the male buckle and the male buckle, .

One end and the other end of the belt 11 form a Velcro tape to easily fasten the waist portion of the body part 10 through the Velcro fastening.

The upper cover part 20 extends from the upper end of the body part 10 and integrally covers the transformer 300 housed in the body part 10. The upper cover part 20 covers the upper part of the transformer 300, .

The upper cover part 20 is made of the same fabric as the body part 10.

The lift band 30 is made of one or more kinds selected from a PET string, a polyester string, or a string composed of a composite of a carbon fiber and a polyester, and has a lattice structure or vertical stripes Structure.

The lift band 30 is made of polyester and has a tensile strength of 4,500 kg / mm 2 or more and a width of 60 to 120 mm. Preferably 100 mm.

The lifting band 30 may have a lattice structure or a vertical stripe structure so as to surround the outer surface of the body portion 10 so that the lifting of the transformer 300 can be performed stably.

That is, the lifting tie section 30 allows stable lifting through the easy hooking method of the lifting device when lifting the transformer 300.

The waterproof and shielding portion 40 is formed at a lower portion of the body 10 to prevent water or oil from flowing out.

The waterproofing and sealing portion 40 is formed by coating the inner side surface of the body portion 10 with a waterproofing and an oil-repellent coating. The waterproofing and sealing portion 40 has a predetermined width in the direction from the bottom surface 101 of the body portion 10 to the inner side . More specifically, it is formed to a height of 50 to 150 mm from the bottom surface.

As shown in FIG. 9, polyurethane having a waterproof function on the inner surface of the bottom surface 101; Vinyl resin; Silicone rubber; Cellulose derivatives; Or a polymer of an acrylic resin or a urethane resin or a waterproof and oil repellent layer 401 formed by applying a tent or a waterproof cloth having a waterproof function through a sewing process, and,

A protective layer 402 made of high-strength special fibers is formed on the outer surface of the bottom surface 101 to prevent the bottom surface 101 from being torn by the weight of the transformer 300 or due to scratches or the like ).

The waterproof and oil repellent layer 401 may be formed of a plurality of layers such as a single layer or two or more layers. The high strength special fiber constituting the protective layer 402 is not limited to a specific type, , High-strength polyethylene fibers, and the like.

In addition, the transformer bag according to the present invention is coated with anti-UV agent to prevent the fabric from being damaged even if it is exposed to ultraviolet rays for a long time, and is excellent in waterproof function and prevents penetration of rainwater or the like into the bag Thereby effectively preventing the transformer from being corroded.

The concrete specifications of the environmentally friendly transformer bag 1 that can be recycled according to the present invention as described above are as follows.

[Size]

2, the height H in the longitudinal direction of the bag 1 in a state where the transformer 300 is accommodated is 1,200 to 1,600 mm and the diameter D is 600 to 1,000 mm. The thickness T of the waterproofing and sealing portion 40 formed at the lower end of the bag 1 is 50 to 100 mm.

Preferably,

Diameter (D) 600 mm x height (H) 1,300 mm,

Diameter (D) 700 mm × H (H) Cylindrical shape of 1,400 mm is used.

[ Material ]

1) Body part (10): UV protection for PP + PE coating and long exposure to sunlight to prevent UV damage.

2) Outer side of the bottom surface (101) of the waterproofing and sealing part (40): It is covered with PET material to prevent tearing from weight,

3) Inside of the bottom surface 101 of the waterproof / leakproof portion 40: coated with rubber having waterproof function, soft plastic or the like, or wrapped in the tent material in the manner of a bar.

4) Lifting belt 30: PET material with high tensile strength.

5) Belt (11): Structure with buckle attached to PP rope.

[ Performance ]

The tensile strength of the body 10 constituting the bag 1 is 1,200 kg / mm < 2 > or more.

The tensile strength of the lift band portion 30 is 4,500 kg / mm < 2 > or more.

[ Other ]

A CI of the manufacturer and a transparent plastic bag 103 for enclosing the year of manufacture of the product are formed on the outer surface of the body part 10 of the bag 1. [

The transformer bag 1 according to the second embodiment is, as shown in Figs. 6 to 8,

A body portion 10 configured to receive the transformer 300 in a cylindrical or polygonal tubular shape with a front surface sealed except the upper surface thereof,

An upper cover part 20 which is integrally formed by extending from the upper end of the body part 10 and is configured to completely cover the transformer 300 housed in the body part 10 and to tighten the upper part with the use of a clamping strap 201, )Wow,

A pull ring 301 formed on the outer surface of the transformer 300 accommodated in the body 10 and having a Velcro detachable pocket structure on both sides of the body 10 is fixed to the outside of the body 10 And the lifting pawl pocket 30 'is configured such that the lifting pawl 301 is hooked on the lifting wire of the lifting device to lift up the transformer 300 housed in the body portion 10,

And a waterproof and shielding part 40 formed at a lower end of the body part 10 and blocking the escape of the insulating oil flowing out from the transformer 300 accommodated in the body part 10 to the outside of the bag .

The transformer bag 1 according to the second embodiment has the same structure as that of the transformer bag 1 according to the first embodiment and the body 10, the upper cover 20 and the waterproofing / , And the lift band 30 is replaced by the pull-up ring pocket 30 '.

The body portion 10, the upper cover portion 20, and the waterproof and leakproof portion 40 have the same technical constitution as the transformer bag 1 according to the first embodiment.

The lift band 30 is configured to directly load the transformer 300 accommodated in the transformer bag, but the impression ring pocket 30 'is fixedly formed on the outer surface of the transformer 300 The lifting ring 301 is exposed to the outside of the body portion 10 so that the lifting wire of the lifting device is caught by the lifting ring 301 so that the transformer 300 is lifted substantially, So that the load of the transformer is not caught in the transformer bag itself.

The impression ring pocket 30 'has a velcro detachable pocket structure. The impression ring pocket 30' has a closed structure before the transformer 300 is accommodated in the bag, and is opened when the transformer 300 is accommodated. It accomplishes.

The impression pocketing pocket 30 'is treated with a velcro bar, and the minute voids of the bar-treated portion are permeated with water-soluble film-coating waterproofing material and solidified and waterproofed.

9 is a cross-sectional view of the waterproof and leakproof portion 40 which is commonly applied to the first embodiment and the second embodiment. The waterproof and leakproof portion 40 is made of a polyurethane foam having waterproof function inside the bottom surface 101 of the transformer bag, urethane; Vinyl resin; Silicone rubber; Cellulose derivatives; Or a polymer of an acrylic resin or a urethane resin or a waterproof and oil repellent layer 401 formed by applying a tent or a waterproof cloth having a waterproof function through a sewing process, and,

Protection of a high-strength special fiber which is formed on the outer surface of the bottom surface 101 and prevents the bottom surface 101 from being torn by the weight of the transformer 300 or due to scratches or the like Layer 402 as shown in FIG.

In addition, since the connection part between the fabric parts constituting the body part 10 according to the present invention is made by high-frequency sealing, the function of the waterproofing / shielding part 40 is further reinforced because there is no part of the sewing part.

The recyclable eco-friendly transformer bag according to the present invention can prevent damage to the enclosure and the bushings of the transformer, which are likely to occur during transportation for storage, lifting and construction after the power transformer is manufactured,

The front of the transformer bag is coated with anti-UV agent so that even if exposed to ultraviolet rays for a long time, the fabric is not damaged and the waterproof function is excellent. Thus, even when the outdoor storage is performed, rainwater can be prevented from penetrating into the bag, Can effectively be prevented,

By providing a waterproof and leakproof part for the front or lower part of the bag, it is possible to prevent environmental pollution by preventing leakage of the oil even when the oil is leaked or spilled during the transportation and installation work of the transformer, Especially, it is highly likely to be used industrially because it can prevent human body and environmental pollution caused by leakage of PCB, which is fatal to human body, and is environmentally friendly and recyclable.

1: bag
10: Body part
11: Belt
20: upper cover part
30: Lift band
40: Waterproofing and sealing
11a: female buckle
11b: male buckle
300: Transformer
301: impression ring

Claims (9)

A bag (1) made of a raw fabric used for lifting the transformer (300) after receiving the transformer (300), in order to prevent the insulating oil flowing out from the transformer (300) from escaping to the outside of the bag, (40) at the front or lower end of the bag (1)

The bag (1)
A body 10 having a cylindrical or polygonal tubular shape with a front surface closed except the upper surface using a fabric to receive the transformer 300 therein,
An upper cover part 20 integrally connected from the upper end of the body part 10 and completely covering the transformer 300 housed in the body part 10 and then tightening the upper part using a clamping strap 201, Wow,
A pull ring 301 formed on the outer surface of the transformer 300 accommodated in the body 10 and having a Velcro detachable pocket structure on both sides of the body 10 is fixed to the outside of the body 10 And the lifting pawl pocket 30 'is configured such that the lifting pawl 301 is hooked on the lifting wire of the lifting device to lift up the transformer 300 housed in the body portion 10,
And a waterproof and shielding part 40 formed at the lower end of the body part 10 to block the escape of the insulating oil flowing out of the transformer 300 accommodated in the body part 10 to the outside of the bag Friendly recyclable transformer bag.
delete delete delete The method according to claim 1,
The body part 10 and the upper cover part 20 are manufactured by first coating a raw material of polypropylene (PP) with a polyethylene (PE) film and then UV-
The anti-UV coating treatment is performed by mixing ethanol and ZnO powder at a weight ratio of 1: 1 to 2: 1 and then dispersing by stirring for 30 minutes to 1 hour and 30 minutes to prepare a ZnO colloid,
0.2 to 1.0 wt% of poly (vinyl acetate) and 99.0 to 99.8 wt% of ethanol are stirred at room temperature to form a first mixture,
40.0 to 60.0 wt% of TTIP (Titanium isopropoxide) and 40.0 to 60.0 wt% of distilled water were mixed to form a second mixture, and then the first mixture and the second mixture were mixed in a weight ratio of 1: 1 to form a third mixture ,
The third mixture is mixed with the ZnO colloid at a weight ratio of 1: 0.5 to 1 and reacted at 12 to 23 ° C for 5 to 7 hours to prepare mixed particles of ZnO and TiO ₂ ,
A fourth mixture composed of 60.0 to 70.0 wt% of a PVA solution obtained by adding PVA to distilled water at 65 to 75 ° C for 1 hour and 30.0 to 40.0 wt% of mixed particles of ZnO and TiO ₂ was subjected to a secondary coating treatment Wherein the recyclable eco-friendly transformer bag is a recyclable eco-friendly transformer bag.
The method according to claim 1,
The body portion 10 and the upper cover portion 20 are formed by etching the surface of the high-strength polyethylene fiber with a 13.56 MHz RF plasma generator having a maximum output of 300 W to obtain a composite structure with a vinyl ester resin, As shown in FIG.
The plasma processing time is set to 3 to 4 minutes within the range of electric power 50 W to 150 W,
The argon (Ar) gas is injected at a rate of 50 to 100 mTorr after the argon (Ar) is injected at a flow rate of 7 to 8 sccm and the initial state before the argon (Ar) The surface of the high-strength polyethylene fiber is treated,
The vinyl ester resin was applied to the surface-treated high-strength polyethylene fibers and maintained at room temperature for 20 to 25 hours. After the temperature was raised to 90 占 폚 at a rate of 3 占 폚 / min and maintained for 15 to 20 minutes, Strength polyethylene fiber having a composite structure with a resin,
Wherein the water-soluble urethane is applied to the surface of the high-strength polyethylene fiber having a composite structure with the vinyl ester resin in a thickness of 0.05 to 0.1 mm and then dried at a temperature of 150 to 170 ° C for 1 to 3 minutes to obtain a recyclable eco- Transformer bag.
delete delete The method according to claim 1,
The waterproof and leakproof portion 40 is formed to have a predetermined thickness from the bottom surface 101 of the body portion 10,
A polyurethane having a waterproof function as an inner surface of the bottom surface 101; Vinyl resin; Silicone rubber; Cellulose derivatives; Or a polymer of an acrylic resin or a urethane resin or a waterproof and oil repellent layer 401 formed by applying a tent or a waterproof cloth having a waterproof function through a sewing process, and,
Protection of a high-strength special fiber which is formed on the outer surface of the bottom surface 101 and prevents the bottom surface 101 from being torn by the weight of the transformer 300 or due to scratches or the like Layer (402). ≪ RTI ID = 0.0 > 31. < / RTI >

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