KR102596466B1 - Flood protection device and underground power distribution station including the same - Google Patents

Abstract

The present invention relates to a flood prevention device capable of closing an internal space in response to rain falling above a certain level, and an underground power distribution station including the same. The flood prevention device includes a first space communicated with the outside and the first space. It is installed in the ventilation opening to be located in the first space in a second space formed with a ventilation opening in communication with the second space, and operates by the buoyancy of water rising from the bottom of the first space to close the ventilation opening, so that the second space is flooded. This is done to prevent it from happening. With this configuration, when rain falls above a certain level, it automatically operates due to buoyancy to close the internal space, thereby preventing flooding.

Description

Flood prevention device and underground distribution station including the same {FLOOD PROTECTION DEVICE AND UNDERGROUND POWER DISTRIBUTION STATION INCLUDING THE SAME}

The present invention relates to a flood prevention device and an underground power distribution station including the same, and more specifically, to a flood prevention device and an underground power distribution station including the same.

As industrialization and urbanization rapidly progress, the explosive increase in electricity demand has led to an increase in electric power facilities such as electric poles, impairing the urban landscape, intensifying restrictions on the use of ground space, and causing problems that threaten the safety of citizens.

To solve this problem, underground installation of burying power facilities underground has recently become common.

The underground distribution station developed to be suitable for undergrounding is capable of operating even under flooded conditions and is free from the installation site or weather conditions such as rainy season. In particular, it greatly contributes to improving the aesthetics of the urban environment due to the undergrounding of ground power equipment.

However, when transformers and distribution lines are placed underground, problems that are different from above-ground power facilities must be resolved, including flooding from rainwater and sewage, temperature maintenance due to heat dissipation, and ensuring stability.

The underground type distribution station has an intake port and an exhaust port formed on the ground of a road or sidewalk, so that the outside air and the air inside the underground type distribution station can be circulated to dissipate heat in the underground type distribution station.

In addition, an exhaust pump is provided inside the underground distribution station, and when it rains, rainwater flowing in through the intake and exhaust ports is discharged to the outside through the exhaust pump to prevent the interior of the underground distribution station from being flooded. It is configured to do so.

However, if it rains so much that the ground is flooded, the underground distribution station may be completely flooded.

Korean Patent No. 2125422 (2020.06.16)

The present invention was created to solve the above problems, and its purpose is to provide a flood prevention device that can close the internal space in response to rain falling above a certain level and an underground power distribution station including the same.

In order to achieve the above object, a flood prevention device according to a preferred embodiment of the present invention includes a first space in communication with the outside, and a second space in which a ventilation hole in communication with the first space is formed, It may be installed in the ventilation opening to be located in space 1, and may be operated by the buoyancy of water rising from the bottom of the first space to close the ventilation opening.

More specifically, the flood prevention device includes a screen rotatably fastened to the ventilation opening and formed with an area capable of covering all open portions of the ventilation opening; and a buoyancy part that is fastened to the shielding part and rises with the buoyancy of water rising from the bottom of the first space and moves the shielding part to close the vent.

In addition, the flood prevention device may further include an attachment portion disposed along the perimeter of the open portion of the ventilation hole and provided with a permanent magnet.

At this time, the shielding portion is made of a material that can be magnetically attached to the attachment portion.

The buoyancy part may have a weight that allows the shielding part to be separated from the attachment part by applying a separation force greater than the attachment force with which the shielding part is attached to the attachment part due to its own weight in a state in which the buoyancy force is not applied.

Additionally, the ventilation opening may be formed to be inclined so that the free end of the shielding unit is located inside the ventilation unit rather than the rotating end in a state in which buoyancy does not act on the buoyancy unit and the shielding unit closes the ventilation opening.

Furthermore, the shielding part may be configured to gradually close the open portion of the ventilation hole in response to the level of water filling the first space.

To this end, the shielding part is fastened to rotate a plurality of unit members so that when the buoyancy part rises due to the buoyancy of water, it is sequentially attached to the attachment part starting from the lowest unit member and gradually closes the open portion of the ventilation hole. It can be done.

At this time, when the buoyancy part descends, the shielding part may be sequentially separated from the attachment part starting from the uppermost unit member to gradually open the open portion of the ventilation hole.

In addition, the ventilation openings may be provided in plurality at the same height and spaced apart from each other, and the shielding portion may be provided at each ventilation opening.

In addition, it may further include an auxiliary attachment part made of a permanent magnet and provided between the plurality of ventilation holes to which an end of the shielding part is auxiliary attached.

In order to achieve the above object, an underground distribution station according to a preferred embodiment of the present invention includes an equipment unit buried in the ground and electronic devices disposed therein; a ventilation unit formed outside the device unit, communicating with the device unit through a ventilation hole, and having an open upper part in communication with the outside to ventilate the device unit; and a flood prevention device installed in the ventilation opening of the ventilation unit and operating with the buoyancy of water rising from the bottom of the ventilation unit to close the ventilation opening to prevent the equipment unit from being flooded.

Here, the flood prevention device includes a shielding portion rotatably fastened to the vent and formed with an area capable of covering all of the open portions of the vent; and a buoyancy unit that is fastened to the shielding unit and rises with the buoyancy of water rising from the bottom of the ventilation unit and moves the shielding unit to close the ventilation opening.

According to the flood prevention device according to the present invention and the underground distribution station including the same, when rain falls above a certain level, it automatically operates by buoyancy in response to the rain, thereby closing the internal space to prevent flooding.

1 is a diagram schematically showing an underground distribution station;
Figure 2 is a cross-sectional view schematically showing the ventilation state in an underground distribution station;
Figure 3 is a cross-sectional view schematically showing a flooded state of an underground distribution station;
Figure 4 is a cross-sectional view schematically showing an underground type distribution station including a flood prevention device according to an embodiment of the present invention;
Figure 5 is a diagram schematically showing the state in which the flood prevention device according to an embodiment of the present invention is placed in the ventilation opening of an underground distribution station;
Figure 6 is a diagram schematically showing the operation of the flood prevention device in a state where water is filling the ventilation section in an underground distribution station according to an embodiment of the present invention;
Figure 7 is a diagram schematically showing a state in which a flood prevention device closes a ventilation hole in an underground distribution station according to an embodiment of the present invention;
Figure 8 is a diagram schematically showing a state in which water is drained from the ventilation part in a state where the flood prevention device closes the ventilation hole in an underground distribution station according to an embodiment of the present invention;
Figure 9 is a diagram schematically showing a state in which a screen according to another embodiment of the flood prevention device according to an embodiment of the present invention is disposed at the ventilation opening of an underground distribution station;
10 to 12 are diagrams schematically showing a state in which a shielding unit according to another embodiment operates while water is filling the ventilation unit in an underground distribution station according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be interpreted as including all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions may include plural expressions, unless the context clearly indicates otherwise.

Unless otherwise defined, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries can be interpreted as having meanings consistent with the meanings they have in the context of related technologies, and unless clearly defined in this application, are interpreted as having an ideal or excessively formal meaning. It may not work.

Hereinafter, specific embodiments of the present invention will be described with reference to the attached drawings.

Figure 1 is a diagram schematically showing an underground distribution station, Figure 2 is a cross-sectional view schematically showing a ventilation state in the underground distribution station, and Figure 3 is a schematic diagram showing a flooded state in the underground distribution station. This is a cross-sectional view shown.

Referring to Figures 1 to 3, the conventional underground distribution station 10 was developed to place transformers and distribution lines underground, and is buried in the ground and electronic devices 20 such as transformers and circuit breakers are placed therein. A device unit 11 is formed on the outside of the device unit 11 and communicates with the device unit 11 through a ventilation hole 13, and the open upper part communicates with the outside to ventilate the device unit 11. It consists of a ventilation unit (12).

In addition, a grating 14 is disposed on the open upper part of the ventilation unit 12 to prevent external dirt from entering the ventilation unit 12 and allow external air to flow into the ventilation unit 12 and the ventilation opening. flows into the device unit 11 through (13), and the air in the device unit 11 is discharged to the outside through the ventilation hole 13 and the ventilation unit 12 to the inside of the device unit 11. Air can be circulated.

In addition, a discharge hole 15 is formed in the ventilation unit 12, so that water flowing into the ventilation unit 12 can be discharged to the ground through the discharge hole 15. That is, when it rains, rainwater flowing into the ventilation unit 12 may be discharged to the ground through the discharge hole 15.

If a lot of rain falls and the rate at which the rainwater is filled in the ventilation unit 12 is faster than the speed at which the rainwater is discharged to the outside through the discharge hole 15 of the ventilation unit 12, rainwater flows into the ventilation unit 12. It fills up, and when it reaches the ventilation hole (13), rainwater flows into the device unit (11) through the ventilation hole (13).

Although not shown in the drawing, conventionally, the equipment unit 11 is provided with an exhaust pump (not shown), and when water fills the inside of the equipment unit 11, the exhaust pump is operated to drain the equipment unit 11. Water is discharged to the outside to prevent the electronic device 20 from being submerged.

However, as more rain falls, as shown in FIG. 3, when the ground is flooded, even if the rainwater filled in the equipment unit 11 is discharged to the outside through the exhaust pump, the ground is still filled with rainwater, so eventually , there is a problem that even the device part 11 is submerged.

In this way, in order to prevent the equipment unit 11 from being flooded by rainwater when it rains so much that the ground is flooded, a flood prevention device has been developed in the present invention.

Hereinafter, a flood prevention device according to an embodiment of the present invention and an underground power distribution station including the same will be described in detail.

Figure 4 is a cross-sectional view schematically showing an underground type distribution station including a flood prevention device according to an embodiment of the present invention, and Figure 5 schematically shows a state in which the flood prevention device is placed in the ventilation opening of the underground type distribution station. It is a drawing shown, and Figure 6 is a diagram schematically showing the state in which the flood prevention device operates while water is filling the ventilation part of the underground distribution station, and Figure 7 is a diagram showing the flood prevention device operating when the ventilation hole is closed. This is a diagram schematically showing one state, and FIG. 8 is a diagram schematically showing a state in which water is drained from the ventilation unit in a state in which the flood prevention device closes the ventilation opening.

In addition, Figure 9 is a diagram schematically showing a state in which a screen according to another embodiment of the flood prevention device is disposed in the ventilation opening of an underground distribution station, and Figures 10 to 12 show the ventilation unit in the underground distribution station. This is a diagram schematically showing the state in which the shield according to another embodiment operates in a state in which water is filling.

Referring to FIGS. 4 to 12, the flood prevention device 100 according to an embodiment of the present invention includes a first space communicating with the outside and a second space formed with a ventilation hole 230 communicating with the first space. In the unit, it is installed in the ventilation opening 230 to be located in the first space, and operates by the buoyancy of water rising from the bottom of the first space to close the ventilation opening 230 to prevent the second space from being flooded. It is a device that

4 to 12 show the flood prevention device 100 according to an embodiment of the present invention installed in an underground distribution station 200.

The underground distribution station 200 according to an embodiment of the present invention includes an equipment unit 210 that is buried in the ground and an electronic device 211 is placed therein, and a ventilation hole 230 formed on the outside of the equipment unit 210. It communicates with the device unit 210 through ) and includes a ventilation unit 220 whose open upper part communicates with the outside to ventilate the device unit 210. And, a grating 240 is installed on the open upper part of the ventilation unit 220.

In addition, the flood prevention device 100 is installed in the ventilation opening 230 in the ventilation unit 220, and operates by the buoyancy of water rising from the lower part of the ventilation unit 220 to close the ventilation opening 230. Prevents the device unit 210 from being submerged.

Accordingly, the first space corresponds to the ventilation unit 220, and the second space corresponds to the device unit 210.

The flood prevention device 100 is disposed in the ventilation unit 220, which is the first space, so that when water rises in the ventilation unit 220, it rises due to the buoyancy of the water and opens the ventilation opening 230. It is automatically closed to prevent water from penetrating into the device unit 210, which is the second space, thereby preventing the device unit 210 from being flooded.

In addition, when the water filled in the ventilation unit 220 is discharged to the ground through the discharge hole 250, it descends with the water surface and automatically opens the ventilation hole 230 to ventilate the inside of the device unit 210. .

To this end, the flood prevention device 100 includes a shielding portion 110 that is rotatably fastened to the ventilation hole 230 and is formed with an area that can cover all open portions of the ventilation hole 230, and the shielding portion 110. ) and may include a buoyancy unit 130 that rises with the buoyancy of water rising from the lower part of the ventilation unit 220, which is the first space, and moves the shielding unit 110 to close the ventilation opening 230. there is.

The buoyancy unit 130 is disposed in the ventilation unit 220, and is made of a material that floats on water so that when water rises in the ventilation unit 220, it rises together by buoyancy.

The shielding portion 110 is formed in the shape of a plate, and the rotating end portion 111, which is one end, is rotatably fastened to the ventilation hole 230, and the free end portion 112, which is the other rotating rotating end, is provided with the buoyancy portion 130. ) is rotated and fastened.

With this configuration, when the buoyancy part 130 rises, the free end part 112 of the shielding part 110 rotates around the rotating end 111 and comes into close contact with the open portion of the ventilation hole 230. and closes the ventilation hole 230.

Then, when water is discharged from the ventilation unit 220, the buoyancy unit 130 floats on the water and descends downward, returning the shielding unit 110 to its original position to open the ventilation opening 230. .

At this time, the ventilation hole 230 is connected to the free end portion 112 of the shielding portion 110 in a state in which buoyancy force does not act on the buoyancy portion 130 and the shielding portion 110 is attached to the attachment portion 140. It may be formed to be inclined so as to be located inside the ventilation unit 220 rather than the rotating end 111.

That is, the end of the ventilation opening 230 is formed to be inclined so that the shielding part 110 is inclined to the inside of the ventilation unit 220 in a state in which the ventilation opening 230 is closed.

Through this, when water is discharged from the ventilation unit 220, as shown in FIG. 8, the blocking unit 110 is tilted toward the inside of the ventilation unit 220. Can be opened more easily.

That is, as shown in FIG. 8, the blocking portion 110 may be attached at an angle θ inclined with respect to a reference line perpendicular to the height direction.

The flood prevention device 100 according to an embodiment of the present invention may be disposed along the perimeter of the open portion of the ventilation hole 230 and further include an attachment portion 140 provided with a permanent magnet. At this time, the shielding portion 110 is made of a material such as metal that can be magnetically attached to the attachment portion 140.

With this configuration, when the buoyancy part 130 rises and the shielding part 110 moves in a direction to close the ventilation hole 230, the shielding part 110 is attached to the attachment part 140 by magnetic force. By attaching it, the ventilation hole 230 can be closed with stronger adhesion.

In this way, when the attachment portion 140 is provided, the buoyancy portion 130 has an attachment force (F1) by which the shielding portion 110 is attached to the attachment portion 140 by its own weight in a state in which no buoyancy force is applied. A larger separation force (F2) is applied so that the shielding portion (110) has a weight (W [kg]) that can be separated from the attachment portion (140).

For example, as shown in FIG. 8, when the shielding portion 110 is obliquely attached to the attachment portion 140 at a predetermined angle θ, the separation force F2 can be obtained by the following equation.

And, since the separation force (F2) is greater than the attachment force (F1) to separate the shielding portion (110) from the attachment portion (140), the weight (W) of the buoyancy portion (130) is obtained by the following formula: You can.

As shown in FIG. 5, the ventilation openings 230 may be provided in plurality at the same height and spaced apart from each other. In this case, the shielding portion 110 is disposed in each of the plurality of ventilation holes 230 to open and close the ventilation holes 230.

At this time, the buoyancy unit 130 may be integrally connected to the plurality of shielding units 110 and may be provided to simultaneously open and close the plurality of ventilation holes 230. Alternatively, the buoyancy unit 130 may be individually provided in each of the plurality of shielding units 110 to individually open and close the plurality of ventilation holes 230.

And, as shown in FIG. 5, an auxiliary attachment part 150 made of a permanent magnet may be further provided between the plurality of ventilation holes 230. In this case, the auxiliary attachment part 150 is located at the side end of the shielding part 110, and the end of the shielding part 110 can be auxiliary attached to provide additional attachment force.

Of course, in this case, the weight (W) of the buoyancy unit 130 is made heavier than the value obtained from the above formula.

Referring to FIGS. 9 to 12, the shielding portion 120 according to another embodiment is configured to open the vent 230 in response to the level of water filled in the ventilating portion 220, which is the first space. It can be closed in stages from the bottom to the top along the height direction.

To this end, the shielding part 120 is fastened so that a plurality of unit members 121 rotate with each other, so that when the buoyancy part 130 rises due to the buoyancy of water, the attachment part ( It may be attached to 140) to gradually close the open portion of the ventilation hole 230.

That is, when the ventilation unit 220 is filled with water, the buoyancy unit 130 correspondingly rises as shown in Figure 10, and when it is filled with water above a certain level, as shown in Figures 11 and 12. , the ventilation hole 230 can be closed by being sequentially attached to the attachment portion 140, starting from the lowest unit member 121.

When the blocking portion 120 is formed in this form, as shown in FIGS. 11 and 12, even when water is filled above a certain level, the ventilation hole 230 is closed only to the height of the water filled, so that the ventilation hole 230 is closed only to the height of the water filled Since the ventilation hole 230 is open to the same height, the device unit 210 can be ventilated.

In addition, when water is discharged from the ventilation unit 220 and the shielding unit 120 is opened, the ventilation opening 230 is sequentially separated from the attachment unit 140, starting from the uppermost unit member 121. ) can be opened.

In this case, the ventilation hole 230 can be opened more quickly compared to the shielding portion 110 described with reference to FIGS. 6 to 8, so that the interior of the ventilation device unit 210 can be ventilated more quickly.

In addition, since the unit members 121 of the shielding portion 120 are opened one by one, the shielding portion 120 can be opened with a weight less than the weight of the buoyancy portion 130 for opening the shielding portion 110 described above. ) can be opened.

Although the present invention has been described in detail through specific examples, this is for detailed explanation of the present invention, and the present invention is not limited thereto, and the present invention is intended to be understood by those skilled in the art within the technical spirit of the present invention. It is clear that modification or improvement is possible.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

100: Flood prevention device 110, 120: Screening part
111: rotating end 112: free end
121: Unit member 130: Buoyancy part
140: attachment part 150: auxiliary attachment part
200: underground distribution station 210: equipment unit
211: Electronic device 220: Ventilation unit
230: ventilation hole 240: grating
250: discharge hole

Claims (12)

In a first space communicating with the outside, and a second space having a ventilation opening communicating with the first space, it is installed in the ventilation opening so as to be located in the first space,
By operating with the buoyancy of water rising from the bottom of the first space, the ventilation hole is closed to prevent the second space from being flooded,
a shielding portion rotatably fastened to the ventilation opening and having an area capable of covering all open portions of the ventilation opening; and
It includes a buoyancy part that is fastened to the shielding part and rises with the buoyancy of water rising from the lower part of the first space and moves the shielding part to close the ventilation opening,
The ventilation opening is
An anti-flooding device, wherein in a state in which buoyancy is not applied to the buoyancy unit and the screen is closed with the vent, the free end of the screen is inclined to be located inside the first space rather than the rotating end.
delete According to paragraph 1,
It further includes an attachment portion disposed along the periphery of the open portion of the ventilation hole and provided with a permanent magnet,
The shielding part is,
A flooding prevention device, characterized in that it is made of a material that can be magnetically attached to the attachment portion.
According to paragraph 3,
The buoyancy part,
An anti-flooding device, characterized in that, in a state in which buoyancy is not applied, the shielding part is made of a weight that can be separated from the attachment part by applying a separation force greater than the attachment force of the shielding part to the attachment part due to its own weight.
delete According to paragraph 3,
The shielding part is,
A flood prevention device characterized in that the open portion of the vent is gradually closed in response to the level of water filled in the first space.
According to clause 6,
The shielding part is,
A flood prevention device characterized in that a plurality of unit members are rotationally fastened to each other, and when the buoyancy part rises due to the buoyancy of water, it is sequentially attached to the attachment part starting from the lowest unit member and gradually closes the open portion of the ventilation hole. .
In clause 7,
The shielding part is,
When the buoyancy part descends, it is sequentially separated from the attachment part, starting from the uppermost unit member, and opens the open portion of the ventilation hole in stages.
According to paragraph 3,
A flood prevention device, characterized in that the ventilation openings are provided in plurality at the same height and spaced apart from each other, and the shielding portion is provided at each ventilation opening.
According to clause 9,
An auxiliary attachment part made of a permanent magnet and provided between the plurality of ventilation holes to which an end of the shielding part is auxiliary attached;
A flood prevention device further comprising:
An equipment unit buried underground and with electronic equipment placed therein;
a ventilation unit formed outside the device unit, communicating with the device unit through a ventilation hole, and having an open upper part in communication with the outside to ventilate the device unit; and
A flood prevention device installed in the ventilation opening of the ventilation unit and operating by the buoyancy of water rising from the bottom of the ventilation unit to close the ventilation opening to prevent the equipment unit from being flooded;
An underground distribution station including.
According to clause 11,
The flood prevention device is,
a shielding portion rotatably fastened to the ventilation opening and having an area capable of covering all open portions of the ventilation opening; and
a buoyancy unit that is fastened to the shielding unit and rises with the buoyancy of water rising from the lower part of the ventilation unit to move the shielding unit to close the ventilation opening;
An underground distribution station comprising:

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