KR20190100587A - Compressed air filtering apparatus and filtering method using the same as - Google Patents

Abstract

The present invention relates to an apparatus of filtering compressed air configured to allow for easy confirmation of a replacement period of a filter member installed therein and for easy replacement of the filter member by a single operator without an additional tool, and to a method of filtering compressing air using the same. To this end, the apparatus of filtering compressed air of the present invention comprises: a lower housing unit (100) having an opened upper portion and a sealed tube-shaped lower portion; an upper housing unit (200) having a sealed upper portion and an opened tube-shaped lower portion; an intermediate housing unit (300) having a lower end vertically disposed on an opened upper end of the lower housing unit (100) and an upper end vertically disposed on an opened lower end of the upper housing unit (200), and configured to supply compressed air introduced from an external side to the inside of the lower housing unit (100), to supply compressed air primarily filtered in the lower housing unit (100) to the upper housing unit (200), and to discharge compressed air secondarily filtered in the upper housing unit (200) to the external side; and a clamping unit (400) configured to fasten or release an upper outer surface of the lower housing unit (100) and a lower outer surface of the intermediate housing unit (300) to or from each other, and a lower outer surface of the upper housing unit and an upper outer surface of the intermediate housing unit (300) to or from each other, respectively.

Description

Compressed air filtering apparatus and filtering method using the same

The present invention relates to a compressed air filter apparatus and a method for filtering compressed air using the same, and more particularly, to filter water, fine dust, and oil contained in compressed air supplied through a compressed air pipe, while also effectively removing a filter. The present invention relates to a compressed air filter device that can easily replace a member, and a compressed air filtering method using the same.

In general, pneumatic equipment, precision equipment, coating equipment, measuring equipment, and mechanical equipment are supplied with compressed air through a pipe for compressed air. Generally, compressed air contains moisture, fine dust, and oil. As a result, there were problems such as failure of equipment using compressed air, poor quality of product, lowered productivity and increased production cost.

In order to solve this problem, Korean Patent Publication No. 10-0819356 discloses a filter device for cleaning industrial air, which includes a blocking medium, which is usually pleated and treated with fine fiber deposits. A housing comprising an air inlet, an air outlet, a spacer wall separating into a filtering chamber and including a first air flow aperture therein, and a clean air chamber; A first filter structure arranged to flow air through the first air flow aperture in the spacer wall and including an extension of the pleated filter media composite defining an internal clean air chamber of the filter structure; And a pulse-jet clean system oriented such that a pulse of air is directed into the internal clean air chamber of the filter structure.

In addition, the Republic of Korea Patent Publication No. 10-0985515 is formed in a structure in which the non-woven material is laminated on the support in the order of low filtration efficiency, the pressure loss of the filtration membrane according to the operating time can be improved to extend the service life A multi-layer air purification gas filtration membrane is disclosed, wherein at least one of the media that filters particles having a particle diameter of 0.2 to 0.75 μm at 30 to 90% or 90 to 99% is laminated in the order of low filtration efficiency. Provides a multi-layer air purification gas filtration membrane on which the first filter layer and the second filter layer for filtering particles having a particle diameter of 0.2 to 0.75 μm to 99% or more are sequentially stacked to form one fabric on the first filter layer and the first filter layer. .

In addition, the Republic of Korea Patent Publication No. 10-1200480 has a multi-layer vertically installed in the filter constituting the air filtering device rather than inclined installed in the stationary state when the filter after cleaning in a rotating configuration to the air filter to clean Is disclosed.

In addition, the Republic of Korea Patent Publication No. 10-1606489 discloses an air circulation device and filter assembly that can simplify the overall configuration and implement excellent cooling performance. Here, the filter assembly is provided with cooling air discharged from the expansion turbine to filter the moisture and foreign matter to separate the purified air and dust air. Purified air of the filter assembly is supplied to the end use, and dust air is used to cool the rotating assembly.

However, the conventional techniques described above do not have the purpose and configuration to provide compressed air supplied to CNC equipment, coating equipment, food manufacturing equipment and pharmaceutical manufacturing equipment in accordance with ISO 8573.1: 2001. There is no situation.

In addition, it is necessary to periodically replace the filter member installed in the conventional compressed air filter device. Since the housing is fastened by using a plurality of bolts or fastening members, separate equipment is required to replace the filter member, as well as replacement time. There was a significant downside.

Republic of Korea Patent Publication No. 10-0819356 (March 28, 2008) Republic of Korea Patent Publication No. 10-0985515 (September 29, 2010) Republic of Korea Patent Publication No. 10-1200480 (November 6, 2012) Republic of Korea Patent Publication No. 10-1606489 (March 21, 2016)

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An object of the present invention can easily check the replacement cycle of the filter member installed inside the compressed air filter device, the compressed air filter that can be easily replaced by the operator alone without using a separate extension when replacing the filter member An object of the present invention and to provide a compressed air filtering method using the same.

Another object of the present invention is to remove the fine dust and solid matter from the primary filter installed in the lower portion of the housing, the compressed air supplied from the outside, the compressed air capable of removing oil, gas from the secondary filter installed in the upper portion of the housing It is to provide a filter device and a compressed air filtering method using the same.

Another object of the present invention is to prevent the inflow of moisture contained in the compressed air supplied from the outside, the compressed air filter device that can provide an air passage of the housing that can increase the efficiency of water removal by lowering the temperature of the compressed air And to provide a compressed air filtering method using the same.

It is a further object of the present invention to provide an inlet and discharge structure of a housing capable of discharging while maintaining the pressure of filtered air from which fine dust, solid matter, water, oil, and gas contained in compressed air supplied from the outside are removed. The present invention provides a compressed air filter device and a compressed air filtering method using the same.

In order to achieve the object of the present invention, the compressed air filter device according to an embodiment of the present invention, the upper portion is open, the lower portion is formed in a closed tubular shape, the lower housing portion 100, the upper portion is sealed The lower part has an upper housing part 200 formed in an open tubular shape, and a lower end part is disposed in a vertical direction on an open upper end part of the lower housing part 100, and an upper end part is opened of the upper housing part 200. It is disposed in the vertical direction in the lower portion, and supplies the compressed air introduced from the outside into the lower housing portion 100, and the compressed air filtered primarily in the lower housing portion 100 in the upper housing portion ( A middle housing part 300 that supplies the inside of the 200 and discharges compressed air filtered by the upper housing part 200 to the outside, and an outer surface of the upper side of the lower housing 100 and the intermediate housing 300. Bottom of) Side, and is characterized in that comprises a lower outer surface and a clamping portion 400 of each fastening on or off so that the upper outside surface of the intermediate housing 300 to each other of the upper housing 200.

In addition, in the compressed air filtering method using the compressed air filter device, the intermediate housing part in a state in which the upper housing part 200, the intermediate housing part 300, and the lower housing part 100 are sequentially fastened from the upper direction to the lower direction. Supplying the compressed air introduced from the outside of the 300 to the lower housing part 100; Removing fine dust and solids contained in the compressed air included in the compressed air while passing from the inside to the outside of the lower housing part 100; Supplying compressed air primarily filtered by the lower housing part (100) into the upper housing part (200) through the intermediate housing part (300); Removing oil vapor, oil, and gas components contained in the compressed air while passing from the outside to the inside in the upper housing part 200; It characterized in that it comprises a step of discharging the compressed air secondary filtered in the inside of the upper housing portion 200 to the outside.

According to the compressed air filter device and the compressed air filtering method using the same according to the present invention, it is possible to easily check the replacement cycle of the filter member installed inside the compressed air filter device, a separate for checking the replacement cycle of the filter member In addition to reducing the effort of the filter member can be easily replaced by the operator alone without using a separate extension, there is an effect that can reduce the replacement time and maintenance and management costs caused by this.

In addition, the compressed air supplied from the outside can remove fine dust and solids from the primary filter installed in the lower part of the housing, and oil and gas can be removed from the secondary filter installed in the upper part of the housing, thereby minimizing installation space. As well as using a pair of filter members there is an effect that can sequentially remove the fine dust, solid matter, water, oil, gas.

In addition, to prevent the inflow of moisture contained in the compressed air supplied from the outside, it is possible to provide an air passage of the housing that can increase the efficiency of water removal by lowering the temperature of the compressed air, including the compressed air supplied from the outside It can provide the inflow and discharge structure of the housing which can discharge while maintaining the pressure of the filtered air from which the fine dust, solid matter, water, oil and gas are removed, thereby reducing the failure or error of the equipment using the compressed air. In addition to reducing the defective rate of the produced product.

1 is a perspective view of a compressed air filter device according to an embodiment of the present invention;
2 is an exploded perspective view of a compressed air filter device according to an embodiment of the present invention;
3a to 3c are a perspective view and a cross-sectional view of the intermediate housing portion of the compressed air filter device according to an embodiment of the present invention;
4A to 4B are perspective views of the lower and upper filter members of the compressed air filter device according to the preferred embodiment of the present invention;
5 is a horizontal cross-sectional view for explaining the operation of the compressed air filter device according to an embodiment of the present invention.

1 is a perspective view of a compressed air filter device according to an embodiment of the present invention; 2 is an exploded perspective view of a compressed air filter device according to an embodiment of the present invention.

1 and 2, the compressed air filter device according to an embodiment of the present invention, which is installed at one end of the compressed air pipe for supplying the compressed air to the air compressor, its schematic configuration is , The upper part is open, the lower part is a lower housing part 100 formed in a closed tubular shape, the upper part is sealed, the lower part is an upper housing part 200 formed in an open tubular shape, and the lower end is a lower housing part 100 ) Is disposed in the vertical direction in the open upper end portion, and the upper end is disposed in the vertical direction in the open lower end portion of the upper housing part 200, and supplies compressed air introduced from the outside into the lower housing part 100. An intermediate housing part for supplying compressed air filtered primarily by the lower housing part 100 to the inside of the upper housing part 200 and discharging compressed air filtered secondary by the inside of the upper housing part 200 to the outside ( 300) and bottom howe (100) Clamping part 400 for fastening or releasing so that the upper outer surface and the lower outer surface of the intermediate housing 300, and the lower outer surface of the upper housing 200 and the upper outer surface of the intermediate housing 300 are connected to each other. It is composed of

Here, the lower housing portion 100, as shown in Figure 2, the upper portion is opened, the lower portion is formed in a closed tubular shape, the lower stepped 114 is the outer side so that the outer periphery of a predetermined section of the upper portion is extended It is formed extending in the direction, the lower coupling jaw 116 is installed in the lower housing 110, the lower housing 110 is formed to be detachably inserted in the lower end of the intermediate housing 300, the lower coupling jaw 116 is extended in the outer direction The lower filter member 120 and the condensed water inside the lower housing 100 to remove fine dust and solid substances included in the compressed air while passing from the inside to the outside in the lower housing 110. It consists of a trap member 130 formed on the bottom for collecting the discharge to the outside.

In addition, the lower filter member 120 is connected to the air outlet 312 at the upper end in a detachable manner, and a first fastener 121 is formed, and the first through hole is vertically passed from the center of the first fastener 121. A first upper locking plate 123 having a sphere 122 formed thereon, a first lower locking plate 125 installed at a predetermined distance away from the first upper locking jaw 123 at a predetermined distance, and a first vertical locking direction To surround the outer surface of the mesh member 127 and the mesh member 127 installed to surround the outer surfaces of the first upper locking plate 123 and the first lower locking plate 125 so that the hollow 126 is formed. The first filtering member 129 is installed to remove fine dust and solid matter contained in the compressed air.

In addition, the upper housing portion 200, the lower portion is open, the upper portion is formed in a closed tubular shape, the upper step 214 is formed to extend in the outward direction so that the outer periphery of a predetermined section of the lower portion is extended, The upper coupling jaw is installed in the upper housing 210 while being detachably inserted in the upper housing 210 and the upper end of the intermediate housing part 300 which are formed to extend outward, and is supplied from the lower housing part 100. The upper filter member 220 and the upper housing 200 for removing oil vapor, oil and gas contained in the compressed air, respectively, while passing the primary filtered compressed air from the inside to the inside of the lower housing 110 from the outside. It is installed to be connected to and fixed to the installation hole 214 formed on the upper part of the), and comprises a pressure gauge 230 to measure the pressure of the internal compressed air of the upper housing 200 and display it.

Here, the upper filter member 220 has a second fastener 221 which is detachably connected to the air outlet 315 at the lower end thereof, and has a second through-hole in the vertical direction from the center of the second fastener 221. The second upper locking plate 223 having the sphere 222 formed thereon, the second lower locking plate 225 installed at a predetermined distance away from the second upper locking jaw 223 at a lower distance, and the second upper locking plate 225 in the vertical direction. Outside of the second mesh member 227 and the second mesh member 227 installed to surround the outer surfaces of the second upper locking plate 223 and the second lower locking plate 225 to form the hollow 226. It is installed to surround the surface, and consists of a second filtering member 229 for removing the oil vapor, oil, gas components contained in the compressed air, respectively.

In addition, the intermediate housing part 300, the upper and lower open cylindrical intermediate housing 310, and is installed inside the lower end of the intermediate housing 310, to remove the moisture contained in the compressed air in the outward direction A plurality of lower perforations 322 are formed in a circular lower perforated plate 320 and the upper end of the intermediate housing 310, the plurality of upper perforations for removing moisture contained in the compressed air in the outward direction ( The upper perforated plate 330 is formed in a circular shape 332, the first air inlet hole 342 is formed on the outer surface of the intermediate housing 310, the first air discharge hole 344 is formed in the lower center The curved first air transfer pipe 340 and the second air inlet hole 352 is formed in the upper center portion, the second air discharge hole 354 is formed to be formed on the other side of the intermediate housing 310 Curved second air transfer pipe 350 and the upper housing portion 200, When the liver housing part 300 and the lower housing part 100 are fastened to be connected in sequence, the upper housing part 200 and the upper housing part 200 are formed inside the intermediate housing part 200 through the lower perforation 322 and the upper perforation 332. It consists of a compressed air transfer path 360 formed to connect the interior of the lower housing portion 100 to each other in the vertical direction.

Hereinafter, a compressed air filtering procedure using a compressed air filter device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

In the state in which the upper housing part 200, the intermediate housing part 300, and the lower housing part 100 are fastened sequentially from the top to the bottom direction, compressed air introduced from the outside of the intermediate housing part 300 is lowered in the lower housing part ( 100).

The inside of the lower housing part 100 removes the fine dust and solids contained in the compressed air contained in the compressed air while passing from the inside to the outside direction.

Compressed air primarily filtered from the lower housing part 100 is supplied into the upper housing part 200 through the intermediate housing part 300.

The inside of the upper housing part 200 removes oil vapor, oil and gas components contained in the compressed air while passing from the outside to the inside.

Subsequently, the secondary filtered compressed air is discharged from the inside of the upper housing part 200 to the outside.

Features, structures, effects, and the like described in the present invention are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, and the like illustrated in each embodiment may be combined or modified with respect to other embodiments by those skilled in the art to which the embodiments belong. Therefore, contents related to such combinations and modifications should be construed as being included in the scope of the present invention.

In addition, the above description has been made with reference to the embodiments, which are merely examples and are not intended to limit the present invention. Those skilled in the art to which the present invention pertains will be exemplified above as long as they do not depart from the essential characteristics of the present embodiments. It will be appreciated that various modifications and applications are possible. For example, each component specifically shown in the embodiment can be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

100: lower housing portion 110: lower housing
112: lower outlet hole 114: lower step
116: lower coupling jaw 118: lower insertion groove
120: lower filter member 121: first fastener
122: first through hole 123: first upper locking plate
125: first lower locking plate 126: first hollow
127: mesh member 129: first filtering member
130: trap member 140: first bushing
200: upper housing portion 210: upper housing
212: upper discharge hole 214: upper step
216: upper coupling jaw 218: upper insertion groove
220: upper filter member 221: second fastener
222: second through hole 223: second upper locking plate
225: second lower locking plate 226: second hollow
227: second mesh member 229: second filtering member
230: pressure gauge 240: second bushing
300: intermediate housing portion 310: intermediate housing
311: second lower insertion groove 312: second lower coupling jaw
313: second upper insertion groove 314: second upper coupling jaw
320: lower perforated plate 322: lower perforated
324: lower fitting hole 330: upper perforated plate
332: upper perforation 334: upper fitting hole
340: first air transfer pipe 342: first air inlet hole
344: first air discharge hole 350: second air transfer pipe
352: second air inlet hole 354: second air outlet hole
360: compressed air transfer path 400: clamping part
410: lower clamping member 420: upper clamping member

Claims (5)

A lower housing part 100 having an upper part open and a lower part formed in a closed tubular shape;
An upper housing part 200 formed in a tubular shape, the upper part of which is closed and the lower part of which is open;
A lower end portion is disposed in a vertical direction to an open upper end portion of the lower housing portion 100, and an upper end portion is disposed in a vertical direction to an open lower end portion of the upper housing portion 200; Supply compressed air introduced from the outside into the lower housing part 100, supply compressed air filtered primarily by the lower housing part 100 to the inside of the upper housing part 200, and the upper part. An intermediate housing part 300 for discharging the compressed air secondary filtered in the housing part 200 to the outside;
The upper outer surface of the lower housing 100 and the lower outer surface of the intermediate housing 300, and the lower outer surface of the upper housing 200 and the upper outer surface of the upper housing 200 are fastened to each other or Compressed air filter device characterized in that it comprises a clamping portion 400 for releasing. The method of claim 1,
The lower housing part 100,
The upper part is opened, and the lower part is formed in a closed tubular shape, and the lower stepped portion 114 extends in the outward direction so that the outer periphery of a predetermined section of the upper part is extended, and the lower engaging jaw 116 is formed in the upper part in the outer direction. An extended lower housing 110;
It is inserted in the lower end of the intermediate housing portion 300 is installed inside the lower housing 110, the fine air contained in the compressed air while passing from the inside to the outside in the lower housing 110 A lower filter member 120 for removing dust and solid materials;
Compressed air filter device characterized in that it comprises a trap member 130 formed on the bottom surface for discharging the water condensed in the lower housing 100 to the outside. The method of claim 1,
The upper housing part 200,
The lower part is open, and the upper part is formed in a closed tubular shape, and the upper step 214 is formed to extend outward so that the outer periphery of a predetermined section of the lower part is extended, and the upper coupling step is formed at the lower end of the upper part. A housing 210;
The first filtered compressed air supplied from the lower housing part 100 is installed in the upper housing 210 while being inserted to be detachably inserted at the upper end of the intermediate housing part 300, and the lower housing 110. An upper filter member 220 for removing oil vapor, oil, and gas components contained in the compressed air while passing from the inside to the outside from the inside;
It is installed to be connected to and fixed to the installation hole 214 formed on the upper portion of the upper housing 200, comprising a pressure gauge 230 for measuring the pressure of the internal compressed air of the upper housing 200 to display it Compressed air filter device, characterized in that. The method of claim 1,
The intermediate housing part 300,
An intermediate housing 310 having a cylindrical upper and lower sides open;
A lower perforated plate 320 installed inside the lower end of the intermediate housing 310, the lower perforated plate 320 having a plurality of lower perforations 322 for removing moisture contained in the compressed air in an outer direction;
An upper perforated plate 330 installed inside the upper end of the intermediate housing 310 and having a plurality of upper perforations 332 formed in a circular shape to remove moisture contained in the compressed air in an outward direction;
The first air inlet hole 342 is formed on the outer surface of the intermediate housing 310, and the curved first air transfer pipe 340 is installed so that the first air discharge hole 344 is formed in the lower center ;
The second air inlet hole 352 is formed in the upper center portion, the curved second air transfer pipe 350 is installed so that the second air discharge hole 354 is formed on the other side of the intermediate housing 310 and ;
When the upper housing part 200, the intermediate housing part 300, and the lower housing part 100 are fastened to be sequentially connected, the intermediate housing part through the lower perforation 322 and the upper perforation 332. Compression characterized in that it comprises a compressed air transfer passage 360 formed in the inside of the 200 to connect the interior of the upper housing portion 200 and the lower housing portion 100 to each other in the vertical direction. Air filter unit. In a state in which the upper housing part 200, the intermediate housing part 300, and the lower housing part 100 are fastened in order from the top to the bottom,
Supplying compressed air introduced from the outside of the intermediate housing part (300) to the lower housing part (100);
Removing fine dust and solids contained in the compressed air included in the compressed air while passing from the inside to the outside of the lower housing part 100;
Supplying compressed air primarily filtered by the lower housing part (100) into the upper housing part (200) through the intermediate housing part (300);
Removing oil vapor, oil, and gas components contained in the compressed air while passing from the outside to the inside in the upper housing part 200;
Compressed air filtering method using a compressed air filter device characterized in that it comprises the step of discharging the second filtered compressed air to the outside in the upper housing portion (200).

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