KR102305005B1 - Dust removal device inside switchboard - Google Patents

Abstract

The present invention relates to an apparatus for removing foreign substances inside a distribution board, including: a main body installed inside the distribution board in which a distribution facility is provided, and including an inner flow path formed inside the main body and through which air flows, an inlet formed on one side of the main body and through which inner air of the distribution board is introduced into the inner flow path, and an outlet formed on an opposite side of the main body and through which the air that has passed through the inner flow path is discharged into the distribution board; a blowing unit installed in the main body to forcibly blow the inner air of the distribution board to the inner flow path; and a cooling unit for cooling the air on the inner flow path to condense water in the air so that condensed water for adsorbing the foreign substances included in the air passing through the inner flow path is generated inside the main body. According to the present invention, the apparatus for removing the foreign substances inside the distribution board is installed on an inner flow path through which the inner air of the distribution board flows to cool the air passing through the inner flow path so as to generate the condensed water, so that the condensed water is used to remove dust or salt included in the inner air of the distribution board.

Description

Dust removal device inside switchboard}

The present invention relates to a device for removing foreign substances inside a switchboard, and more particularly, to a device for removing foreign substances inside a switchboard capable of removing dust inside a switchboard using condensed water generated by cooling the air inside the switchboard.

In general, a switchboard, switchboard, or distribution board is a device that receives high-voltage or extra-high voltage electricity that supplies power, converts it into voltage used by consumers, and distributes it to load facilities. Electric components such as high-voltage circuit breaker, transformer, low-voltage distribution circuit breaker, magnet, and other electrical components such as relays and instruments for protection and monitoring of the power system are mounted.

On the other hand, heat is generated from high-voltage components such as a high-voltage transformer or switch contact inside the switchboard, and when dust inside the switchboard accumulates on the corresponding equipment, a fire may occur. In addition, when the installation place of the switchboard is near the beach, there is a disadvantage in that salt damage is generated in the distribution facility by the salt introduced into the inside of the switchboard.

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The present invention has been devised to improve the above problems, and it is an object of the present invention to provide an apparatus for removing foreign substances inside the switchboard that can remove dust inside the switchboard using condensed water generated by cooling the air inside the switchboard.

The device for removing foreign substances inside a switchboard according to the present invention for achieving the above object is installed inside a switchboard having a distribution facility therein, an inner flow path through which air flows is formed therein, and the switchboard as the inner flow path on one side a body having an inlet through which the internal air of the switch is introduced, and an outlet for discharging the air passing through the internal flow path to the inside of the switchboard on the other side; and a cooling unit for cooling the air on the internal flow path to condense moisture in the air so that condensed water for adsorbing foreign substances contained in the air passing through the internal flow path is generated inside the body.

The cooling unit is provided with at least one thermoelectric element installed in the main body such that the opposite side surfaces are heated and cooled by the power applied from the power supply unit, and the cooling surface of the both side surfaces is exposed to the internal flow path.

The cooling unit is installed in the main body so that at least a portion is exposed to the internal flow path, and an evaporator having a flow path through which a low-temperature refrigerant flows therein so that a cooling surface exposed to the internal flow path of the main body is cooled; It may be connected to a refrigerant supply unit for supplying a low-temperature refrigerant to the evaporator.

On the other hand, the device for removing foreign substances inside the switchboard according to the present invention is installed on the cooling surface of the cooling unit, and is formed to extend a predetermined length in a direction away from the cooling surface so that the contact area for air passing through the internal flow path can be expanded, At least one expansion panel having a predetermined thermal conductivity may be further provided to be cooled by the cooling unit.

In addition, the device for removing foreign substances inside the switchboard according to the present invention is installed on the outer surface of the expansion panel, and one end is in contact with the cooling surface of the cooling unit so that the condensed water condensed on the cooling surface flows along the expansion panel, At least one guide member extending a predetermined length along the extension direction of the expansion panel may be further provided.

The guide member may have one end in contact with the cooling surface at a position spaced apart from the expansion panel in a direction away from the extension panel, and may be inclined so that the other end is located lower than the one end.

The expansion panel is rotatably installed on the cooling surface of the cooling unit along the width direction of the internal flow path, and periodically rotates the expansion panel at a predetermined angle so that the condensed water condensed on the outer surface of the expansion panel can flow downward. A panel driving unit for rotating may be further provided.

The device for removing foreign substances inside the switchboard according to the present invention is installed on the internal flow path through which the internal air of the switchboard flows and cools the air passing through the internal flow path to generate condensed water. It has the advantage of being able to remove salt.

1 is a cross-sectional view of an apparatus for removing foreign substances inside a switchboard according to the present invention;
2 is a cross-sectional view of an apparatus for removing foreign substances inside a switchboard according to another embodiment of the present invention;
3 is a perspective view of an apparatus for removing foreign substances inside a switchboard according to another embodiment of the present invention;
4 is a perspective view of an apparatus for removing foreign substances inside a switchboard according to another embodiment of the present invention;
5 is a cross-sectional view of an apparatus for removing foreign substances inside a switchboard according to another embodiment of the present invention.

Hereinafter, an apparatus for removing foreign substances inside a switchboard according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements. In the accompanying drawings, the dimensions of the structures are enlarged than the actual size for clarity of the present invention.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

1 shows an apparatus 100 for removing foreign substances inside a switchboard according to the present invention.

Referring to the drawings, the apparatus 100 for removing foreign substances inside the switchboard is installed inside the switchboard 10 provided with the distribution facility 11 therein, and an internal flow path 111 through which air flows is formed, An inlet 112 through which the internal air of the switchboard 10 flows into the internal flow path 111 is formed on one side, and the air that has passed through the internal flow path 111 on the other side is discharged into the switchboard 10 a main body 110 having an outlet 113 for The cooling unit 130 for cooling the air on the internal flow path 111 so that condensed water for adsorbing foreign substances contained in the air passing through the flow path 111 is generated inside the main body 110 to condense moisture in the air. to provide

Here, the switchboard 10 is provided with an internal space so that the power distribution facility 11 can be installed therein, and the case 12 with one side open and one side of the open case 12 can be opened and closed. A door (not shown) installed in the case 12 is provided. The power distribution facility 11 is a circuit breaker or a power device is applied. In this case, the front side of the case 12 may be opened, and the power distribution facility 11 may be installed on the rear inner wall surface.

The main body 110 is installed on the inner wall surface of the case 12 of the switchboard 10, and extends a predetermined length in the vertical direction. The internal flow path 111 of the body 110 is formed to extend in the vertical direction, and the inlet 112 is formed on the lower surface of the body 110 to communicate with the corresponding internal flow path 111 . At this time, the lower end of the main body 110 is formed to be bent toward the center of the case (12). In addition, the outlet 113 is formed on the upper surface of the main body 110 to communicate with the internal flow path 111 . And, the upper end of the main body 110 is formed to be bent toward the center of the case (12).

The blower 120 is installed inside the main body 110 to forcibly blow air so that the internal air of the switchboard 10 flows in the inlet 112 and is discharged through the outlet 113 . Since the blower 120 is a blower generally used in the prior art to forcibly blow air, a detailed description thereof will be omitted.

The cooling unit 130 includes a thermoelectric element 131 installed inside the main body 110 .

The thermoelectric element 131 is formed so that both sides of the thermoelectric element 131 opposite to each other are heated and cooled by power applied from a power supply unit (not shown). Here, the thermoelectric element 131 is also referred to as a Peltier element.

When two different N, P type semiconductors are connected in series, the junction of the two metals is

Peltier effect in which heat is generated or absorbed at the junction when current flows through it

It is a semiconductor device using (peltier's effect).

possible, and the amount of heat generation and heat absorption is adjusted according to the amount of current

When it flows, the rear side emits heat for heating, and the front side absorbs heat and works for cooling.

On the other hand, if the current flows in the reverse direction, the surface that emits and absorbs heat changes.

At this time, the thermoelectric element 131 is installed in the main body 110 so that the cooling surface 132, which is cooled among the side surfaces to be heated or cooled, is exposed to the internal flow path 111 . Here, it is preferable that the thermoelectric element 131 is installed such that the heating surface 133, which heats up among both sides, is exposed to the outside of the case 12 of the switchboard 10 . In addition, a plurality of heat dissipation fins 134 are installed on the heat generating surface 133 of the thermoelectric element 131 to expand the contact area with the outside air of the case 12 in order to improve heat dissipation efficiency.

Meanwhile, in the illustrated example, one thermoelectric element 131 is installed in the main body 110 , but the present invention is not limited thereto. The above may be installed in the main body 110 .

The air inside the switchboard 10 is introduced into the internal flow path 111 of the main body 110 through the inlet 112 by the blower 120 and passes through the corresponding internal flow path 111 . At this time, the cooling surface 132 of the thermoelectric element 131 of the cooling unit 130 is cooled, and the air in contact with the cooling surface 132 is cooled by the corresponding thermoelectric element 131 to condense moisture. Here, since foreign substances such as dust or salt in the air are adsorbed to the condensed water condensed on the cooling surface 132 of the thermoelectric element 131 , dust or salt can be removed from the air inside the switchboard 10 . In addition, since the air cooled by the cooling unit 130 is supplied to the inside of the switchboard 10 , it is possible to prevent the distribution facility 11 installed in the switchboard 10 from overheating.

On the other hand, although not shown in the drawing, a collection hopper capable of collecting condensed water condensed on the cooling surface 132 of the thermoelectric element 131 is located inside the body 110 at a position spaced downward with respect to the thermoelectric element 131. can be installed. At this time, it is preferable that the end of the collection hopper protrude to the outside of the switchboard 10 so as to discharge the collected condensed water to the outside of the switchboard 10 .

The device 100 for removing foreign substances inside the switchboard according to the present invention configured as described above is installed on the internal flow path 111 through which the internal air of the switchboard 10 flows, and cools the air passing through the internal flow path 111. Since condensate is generated, there is an advantage in that dust or salt contained in the air inside the switchboard 10 can be removed by using the condensed water.

Meanwhile, FIG. 2 shows a cooling unit 150 according to another embodiment of the present invention.

Elements having the same function as in the drawings shown above are denoted by the same reference numerals.

Referring to the drawings, the cooling unit 150 is installed in the main body 110 so that at least a portion is exposed to the internal flow path 111 , and the cooling surface exposed to the internal flow path 111 of the main body 110 ( An evaporator 151 having a flow path through which a low-temperature refrigerant flows therein so that the 132 is cooled, and a refrigerant supply unit 152 connected to the evaporator 151 to supply a low-temperature refrigerant to the evaporator 151 to provide

The evaporator 151 is installed inside the body 110, and the flow path is provided therein. Although not shown in the drawings, the flow path is preferably formed in the form of a multi-stage curved curved pipe. On the other hand, the evaporator 151 is formed of a metallic material having a predetermined thermal conductivity to easily exchange heat with the refrigerant. Also, unlike the illustrated example, the evaporator 151 may be formed in a pipe shape in which a corresponding flow path is provided. In the evaporator 151 , the cooling surface 132 is cooled by the refrigerant evaporated by the air passing through the body 110 . Here, as the refrigerant, chloro-fluoro-carbon (CFC) or hydro-fluoro-carbon (HFC) may be applied.

The refrigerant supply unit 152 includes a compressor 153 for absorbing latent heat of evaporation from the evaporator 151 and compressing the evaporated refrigerant, a condenser 154 for condensing the vapor-phase refrigerant compressed by the compressor 153, and the A throttle valve 155 is provided between the condenser 154 and the evaporator 151 to throttle the refrigerant condensed by the condenser 154 .

As described above, the cooling unit 130 may generate condensed water by cooling the air inside the switchboard 10 passing through the main body 110 by applying a refrigeration cycle using a refrigerant in addition to the thermoelectric element 131 . Since the cooling unit 130 cools the air using a refrigerant, the air can be cooled to a lower temperature.

Meanwhile, FIG. 3 shows an apparatus 200 for removing foreign substances inside a switchboard according to another embodiment of the present invention.

Referring to the drawings, the device 200 for removing foreign substances inside the switchboard is installed on the cooling surfaces 132 of the cooling units 130 and 150, and the contact area for air passing through the internal flow path 111 can be expanded. A plurality of expansion panels 210 extending a predetermined length in a direction away from the cooling surface 132 are further provided.

The expansion panel 210 extends in a direction away from the cooling surface 132 of the thermoelectric element 131 or the evaporator 151 so that an end thereof is adjacent to the inner wall surface of the body 110 opposite to the cooling surface 132 . . In addition, the decorative panels extend in the vertical direction, and a plurality of the decorative panels are arranged to be spaced apart from each other along the width direction of the inner flow path 111 of the main body 110 . In addition, the expansion panel 210 is preferably formed of a metallic material having a predetermined thermal conductivity so that it can be cooled by the cooling units 130 and 150 .

The expansion panel 210 is cooled by the thermoelectric element 131 or the evaporator 151, and on the surface, moisture in the air is condensed to generate condensed water. Dust or salt in the air is adsorbed to the condensed water generated in the expansion panel 210 to remove foreign substances from the air inside the switchboard 10 . The contact area with the air passing through the internal flow path 111 is expanded by the above-described expansion panel 210, so that there is an advantage in that the condensed water generation efficiency and the foreign material removal efficiency are improved.

Meanwhile, in the illustrated example, the structure in which seven expansion panels 210 are installed on the cooling surfaces 132 of the cooling units 130 and 150 is shown, but the expansion panel 210 is formed on the cooling surfaces 132 of the cooling units 130 and 150 . ) 6 or less, or 8 or more may be provided depending on the size.

Meanwhile, FIG. 4 illustrates an apparatus 300 for removing foreign substances inside a switchboard according to another embodiment of the present invention.

Referring to the drawings, the device 300 for removing foreign substances inside the switchboard is installed on the outer surface of the expansion panel 210 , and condensed water condensed on the cooling surface 132 can flow along the expansion panel 210 . A plurality of guide members 310 formed so as to be further provided.

One end of the guide member 310 is in contact with the cooling surface 132 of the cooling units 130 and 150 , and extends a predetermined length along the extending direction of the expansion panel 210 . At this time, the guide member 310 is curved so as to be separated from the expansion panel 210 so that one end is in contact with the cooling surface 132 at a position spaced apart from the expansion panel 210 in a direction away from the expansion panel 210 . In addition, it is preferable that the guide member 310 is inclined so that the other end is located below one end so that the condensed water generated on the cooling surface 132 can flow easily. In addition, the guide member 310 is curved so that the other end is separated from the expansion panel 210 so that the condensed water flowing along the guide member 310 can easily fall downward. A plurality of the above-described guide members 310 may be provided on the expansion panel 210 to be spaced apart from each other in the vertical direction.

Since the condensed water generated on the cooling surface 132 of the cooling units 130 and 150 flows to the outer surface of the expansion panel 210 along the corresponding guide member 310, the contact efficiency with the air passing through the body 110 is increased. It can adsorb many foreign substances.

Meanwhile, FIG. 5 shows an apparatus 400 for removing foreign substances inside a switchboard according to another embodiment of the present invention.

Referring to the drawings, the expansion panel 410 is rotatably installed on the cooling surfaces 132 of the cooling units 130 and 150 in the width direction of the internal flow path 111 , and the switchboard internal foreign material removal device 400 ) further includes a panel driving unit 420 for periodically rotating the expansion panel 410 at a predetermined angle so that the condensed water condensed on the outer surface of the expansion panel 410 can flow downward.

The expansion panel 410 is preferably installed on the cooling surface 132 of the cooling units 130 and 150 so that the central portion is rotatable.

The panel driving unit 420 extends along the width direction of the internal flow path 111 of the main body 110, and includes an interference rod 421 in which lower ends of the expansion panels 410 are rotatably installed, and the interference rod 421. and an actuator 422 for moving in the width direction of the internal flow path 111 , and a control unit for periodically operating the actuator 422 to rotate the expansion panel 410 .

The interference rod 421 is formed in a plate shape having a predetermined thickness, and the lower ends of the expansion panels 410 are rotatably installed thereon. One end of the actuator 422 is fixed to the interference rod 421 , and one end of the actuator 422 is installed in the main body 110 such that one end is drawn into the main body 110 . The actuator 422 is applied with a jack screw whose length from one end to the other end is extended by the power supplied. The control unit rotates the expansion panel 410 at a predetermined angle every preset unit time, and then operates the actuator 422 to return the expansion panel 410 to its initial position. As described above, the panel driving unit 420 periodically rotates the expansion panel 410 at a predetermined angle, so that the condensed water generated on the surface of the expansion panel 410 falls downward. The falling condensate comes into contact with more air, improving the removal efficiency of foreign substances. In addition, since the expansion panel 410 is rotated by the panel driver 420 and condensed water falls, foreign substances adsorbed to the condensed water are adhered to the expansion panel 410 , thereby preventing the expansion panel 410 from being contaminated.

Meanwhile, although not shown in the drawings, a vibrator capable of applying vibration to the corresponding expansion panel 410 may be installed in the expansion panel 410 . The vibrator works in conjunction with the actuator 422 . The condensed water may fall along the expansion panel 410 more easily by the vibration generated by the vibrator.

The description of the presented embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments presented herein, but is to be construed in the widest scope consistent with the principles and novel features presented herein.

10: switchboard
11: Distribution facility
12: case
100: dust removal device inside the switchboard
110: body
111: internal flow
112: inlet
113: outlet
120: blower
130: cooling unit
131: thermoelectric element
132: cooling surface
133: heating surface
134: heat sink fin

Claims (7)

The power distribution facility is installed inside a switchboard provided therein, and an internal flow path through which air flows is formed therein, an inlet through which the internal air of the switchboard flows into the internal flow path on one side is formed, and the internal flow path on the other side a body having an outlet for discharging the air passing through the switchboard;
a blower installed in the main body to forcibly blow the internal air of the switchboard to the internal flow path;
Cooling the air on the internal flow path to condense moisture in the air so that condensed water for adsorbing foreign substances contained in the air passing through the internal flow path is generated inside the body, a cooling surface installed in the body to be cooled a cooling unit installed on the internal flow path;
It is installed on the cooling surface of the cooling unit, is formed to extend a predetermined length in a direction away from the cooling surface so that a contact area with respect to the air passing through the internal flow path can be expanded, and conducts a predetermined heat so as to be cooled by the cooling unit at least one expansion panel rotatably installed along the width direction of the internal flow path on the cooling surface of the cooling unit; and
Installed on the outer surface of the expansion panel, one end is in contact with the cooling surface of the cooling unit so that the condensed water condensed on the cooling surface can flow along the expansion panel, the expansion panel extends a predetermined length in the extending direction at least one guide member;
a panel driving unit for periodically rotating the expansion panel at a predetermined angle so that the condensed water condensed on the outer surface of the expansion panel can flow downward; and
and a vibrator installed on the extension panel to apply vibration to the extension panel; and
The guide member is formed so that one end of the guide member is in contact with the cooling surface at a position spaced apart from the expansion panel, the other end is inclined so that the other end is located lower than the one end, and the other end is formed to be spaced apart from the expansion panel,
Foreign object removal device inside the switchboard.
According to claim 1,
The cooling unit has at least one thermoelectric element installed in the main body so that both sides of the cooling unit are heated and cooled by the power applied from the power supply, and the cooling side of the both sides is exposed to the internal flow path;
Foreign object removal device inside the switchboard.
According to claim 1,
the cooling unit
an evaporator installed in the main body so that at least a part of the inner passage is exposed, and having a flow passage through which a low-temperature refrigerant flows therein so that a cooling surface exposed to the inner passage of the main body can be cooled; and
A refrigerant supply unit connected to the evaporator to supply a low-temperature refrigerant to the evaporator;
Foreign object removal device inside the switchboard.
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