CHO, Kuk Sup (598-3, Choryang-dongDong-gu, Busan 601-010, KR)
Claims
[1] A compressed air supply apparatus that supplies a large amount of compressed air to a bag filter in which air is collected at a high speed using an air amplifier, the apparatus comprising; a compressed air conduit comprising spout conduits having one end is connected to means for supplying the compressed air and divided into two conduits, and exhaust nozzles perforated in the upper surface of the spout conduits and exhausting the compressed air; and the air amplifier comprising a compressed air inlet formed to correspond to each of the exhaust nozzles formed in the two spout conduits, coupled to the exhaust nozzles, and fixed to the upper of the two spout conduits, and a compressed air outlet amplifying and exhausting air injected into the compressed air inlet.
[2] The apparatus of claim 1, wherein the air amplifier comprises the compressed air outlet that is a space between a first guide and a second guides that are in the shape of a circle and are formed in the side surface along the inner circumferential surface of the air amplifier, an induction conduit formed extending from the second guide to the lower of the spout conduits, absorbing surrounding air according to the flow of the compressed air that is exhausted from the compressed air outlet, and transfers the absorbed surrounding air to the bag filter.
[3] The apparatus of claim 2, wherein the air amplifier is formed over the two spout conduits, the upper center portion of the air amplifier is perforated in the shape of a donut in order to absorb the surrounding air, and the bottom portion thereof is formed as the induction conduit in the shape of a conduit extending from the second guide to the lower of the spout conduits.
[4] The apparatus of claim 2 or 3, wherein the compressed air injected into the air amplifier and the amplified compressed air exhausted into the induction conduit are perpendicular to each other.
[5] The apparatus of claim 4, wherein the air that is entered through the induction conduit and is supplied to the bag filter and the compressed air entered into the air amplifier are in the opposite direction to each other. |
Description
APPARATUS FOR SUPPLYING COMPRESSED AIR USING AIR
AMPLIFIER
Technical Field
[1] The present invention relates to an apparatus for supplying compressed air using an air amplifier, and more particularly, to an apparatus for supplying compressed air using an air amplifier in which a compressed air supply conduit is divided into two spout conduits, the air amplifier is connected to the upper of both spout conduits, and a large amount of surrounding air is equally supplied to a bag filter at a fast speed by the pressure of air amplified in the air amplifier without an obstacle of surrounding equipments, so that a strong dedusting force can be achieved.
[2]
Background Art
[3] A conventional dust collector that removes particulates from flowing air in a place where a large amount of dust is collected, purifies the air, and exhausts the purified air to the outside uses a bag filter. The bag filter supplies compressed air in a lower direction to the opposite direction that air is filtered and exhausted, and removes contaminants captured in the bag filter, thereby preventing a bag from being stuck.
[4] As shown in FIG. 5, a compressed air supply apparatus that supplies compressed air to the conventional bag filter and removes contaminants has used a conduit 10 in which the compressed air is supplied and the bag filter, which are spaced apart from each other by a predetermined interval in order to increase the amount and speed of the supplied compressed air, and an injector 20 that can maximize the Coanda effect that is the tendency of a stream of fluid to stay attached to a convex surface and is coupled to the bottom of the conduit 10.
[5] However, when the injector 20 that can maximize the Coanda effect is coupled to the bottom of the conduit 10, although in principle air as much as about 8-20 times the compressed air must be entered into the bag filter, since the conduit 10 disposed on the upper of the injector 20 prevents a flow of surrounding air, only air as much as 4-8 times the compressed air is substantially entered into the bag filter, resulting in a failure to reach a target for the dedusting effect, and accordingly an incomplete removal of contaminants.
[6] Therefore, to address this problem, as shown in FIG. 6, the conduit 10 disposed on the upper of the injector 20 is fixed to the side of the injector 20 so that the compressed air is exhausted along the injector 20 through a circular conduit 30 and a slot 40.
[7] Nevertheless, the conventional compresed air supply apparatus has a trouble in the
balance since the conduit 10 is eccentrically mounted. In particular, when an external impact is applied to the eccentrical conduit 10, the conduit 10 can be easily damaged, and air is not equally distributed to the injector 20, resulting in an incomplete removal of contaminants.
[8]
Disclosure of Invention
[9] The present invention provides an apparatus for supplying compressed air using an air amplifier in which a conduit through which the compressed air is supplied is divided into two conduits, the air amplifier having a very high amplification rate and absorbing and exhausting the compressed air is installed in the upper of the two conduits, and surrounding air is supplied to a bag filter through the two conduits, so that equipment preventing the flow of air supplied to the bag filter is totally excluded from an area where air flows, thereby maximizing the Coanda effect and remarkably enhancing a dedusting effect that completely removes contaminants.
[10] According to an aspect of the present invention, there is provided a compressed air supply apparatus that supplies a large amount of compressed air to a bag filter in which air is collected at a high speed using an air amplifier, the apparatus comprising; a compressed air conduit comprising spout conduits having one end is connected to means for supplying the compressed air and divided into two conduits, and exhaust nozzles perforated in the upper surface of the spout conduits and exhausting the compressed air; and the air amplifier comprising a compressed air inlet formed to correspond to each of the exhaust nozzles formed in the two spout conduits, coupled to the exhaust nozzles, and fixed to the upper of the two spout conduits, and a compressed air outlet amplifying and exhausting air injected into the compressed air inlet.
[11] The air amplifier may comprise the compressed air outlet that is a space between a first guide and a second guides that are in the shape of a circle and are formed in the side surface along the inner circumferential surface of the air amplifier, an induction conduit formed extending from the second guide to the lower of the spout conduits, absorbing surrounding air according to the flow of the compressed air that is exhausted from the compressed air outlet, and transfers the absorbed surrounding air to the bag filter.
[12] The air amplifier may be formed over the two spout conduits, the upper center portion of the air amplifier may be perforated in the shape of a donut in order to absorb the surrounding air, and the bottom portion thereof may be formed as the induction conduit in the shape of a conduit extending from the second guide to the lower of the spout conduits.
[13] The compressed air injected into the air amplifier and the amplified compressed air exhausted into the induction conduit may be perpendicular to each other.
[14] The air that is entered through the induction conduit and is supplied to the
[15] bag filter and the compressed air entered into the air amplifier may be in the opposite direction to each other.
[16]
Brief Description of the Drawings
[17] The above and other features and advantages of the present invention will become more apparent by describing in detail embodiments thereof with reference to the attached drawings in which:
[18] FIG. 1 is a perspective view of a compressed air supply apparatus using an air amplifier according to an embodiment of the present invention;
[19] FIG. 2 is a plan view of a compressed air supply apparatus using an air amplifier according to an embodiment of the present invention;
[20] FIG. 3 is a cross-sectional view of a compressed air supply apparatus using an air amplifier according to an embodiment of the present invention;
[21] FIG. 4 illustrates a dust collector bag filter to which a compressed air supply apparatus is applied according to an embodiment of the present invention;
[22] FIG. 5 is a conventional compressed air supply apparatus of the Coanda effect according to an embodiment of the present invention; and
[23] FIG. 6 is a cross-sectional view of a conventional compressed air supply apparatus according to an embodiment of the present invention.
[24]
Best Mode for Carrying Out the Invention
[25] The present invention will now be described more fully with reference to the accompanying drawings, in which embodiments of the present invention are shown.
[26] Referring to FIGS. 1 and 2, the compressed air supply apparatus using the air amplifier of the present embodiment comprises a compressed air conduit 100 that is connected to compressed air supply means and is divided into two conduits, and the air amplifier 200 that is coupled to the upper of the compressed air conduit 100, absorbs surround air along compressed air through the compressed air conduit 100 that is divided into two conduits, and supplies the air to a bag filter 300 shown in FIG. 4.
[27] The bag filter 300 is arranged in a plurality of rows in order to capture air entered into the inside of a housing of a dust collector 400, and comprises a bag formed of nonwoven fabric or the like and a bag cage disposed inside the bag.
[28] The compressed air conduit 100 is spaced apart from the upper side of the bag filter by a predetermined interval in the same manner as the conventional art, is connected to
the compressed air supply means, is supplied with the compressed air, and transfers the compressed air. The compressed air supply means comprises an air header (not shown) that accumulates the compressed air, a ball valve (not shown) connected to a connection conduit coupled to the air header, and a pulse valve (not shown) that is mounted in the bottom of the ball valve and pulses the compressed air supplied to the compressed air conduit 100.
[29] At this time, the compressed air conduit 100 comprises two spout conduits 110 that are divided from a connection part of the compressed air supply means. Exhaust nozzles 120, which are perforated upward and exhaust the compressed air, are disposed on the upper surface of the spout conduits 110. In this case, the bottom of the spout conduits 110 must be sealed. The plurality of exhaust nozzles 120 are formed in the spout conduits 110. Each exhaust nozzle 120 may be coupled to each spout conduit 110 in a perpendicular direction from the center line of the compressed air conduit 100.
[30] As shown in FIG. 3, the air amplifier 200 comprises a compressed air inlet 210 that is coupled to the exhaust nozzles 120 formed on the upper surface of the spout conduits 110, and a compressed air outlet 220 that amplifies air entered through the compressed air inlet 210 at a predetermined rate and exhausts the air to the side.
[31] The air amplifier 200 is coupled to the two spout conduits 110 so that a passage into which the surrounding air is absorbed into the bag filter 300 is disposed between the two spout conduits 110.
[32] Therefore, the compressed air inlet 210 is formed in the lower surface of the air amplifier 200 so as to be coupled to the exhaust nozzles 120 that are formed in each of the two spout conduits 110 in a perpendicular direction from the center line of the compressed air conduit 100.
[33] The compressed air outlet 220 is formed at an angle of about 90 in a direction that the air is injected into the two spout conduits 110 in order to face the inner center line of the compressed air conduit 100. Therefore, a circular first guide 221 and a circular second guide 222 that constitute a passage through the injected air flows are formed in the side surface along the inner circumferential surface of the air amplifier 200.
[34] An induction conduit 230 is formed perpendicularly extending from the second guide
222 to the lower of the spout conduits 110. Therefore, air filling the upper space of the air amplifier 200 is absorbed in a direction of the bag filter 300 without an obstacle of surrounding equipments according to the flow of the compressed air that is exhausted through the first guide 221 and the second guide 222. In more detail, air is exhausted in the opposite direction of 180 to the opposite direction that the air is injected into the spout conduits 110 through the compressed air inlet 210 and contaminants attached to the bag filter 300 is removed.
[35] The air amplifier 200 is disposed over the two spout conduits 110. The upper center
portion of the air amplifier 200 is perforated in the shape of a donut in order to absorb the surrounding air. The lower portion of the air amplifier 200 forms the induction conduit 230 in the shape of a pipe extending from the second guide 220 to the lower of the spout conduits 110.
[36] At this time, the compressed air inlet 210 extends from a circular conduit to the lower surface at a predetermined length and is inserted into the exhaust nozzles 120 that are merely perforated, so that the compressed air inlet 210 are tightly coupled to the exhaust nozzles 120 by welding or using a bolt. To the contrary, the exhaust nozzles 120 are protruded from the upper surface of the spout conduits 110 at a predetermined length, are inserted into the inside of the compressed air inlet 210 that is merely perforated, and are tightly coupled to the compressed air inlet 210 by welding or using a bolt.
[37] The operation of the compressed air supply apparatus having the above configuration using the air amplifier according to the present invention will now be described.
[38] Referring to FIG. 4, after air is purified via a dust collection function of the dust collector 400 and contaminants are attached to the bag filter 300, the compressed air is supplied through the two spout conduits 110 that are divided from the compressed air supply means intermittently or continuously for a predetermined period of time. The compressed air is supplied through the exhaust nozzles 120 whose upper portions are open and is entered into the air amplifier 200 through the compressed air inlet 210 of the air amplifier 200.
[39] The air amplifier 200 amplifies the compressed air and exhausts the amplified air through the compressed air outlet 220 formed in the side surface thereof in an inner direction to the center line of the spout conduits 110. At this time, the air exhaust direction is guided through the first guide 221 and the second guide 222 of the air amplifier 200. The compressed air is exhausted at an angle of 90 as shown in a dotted line ® of FIG. 3 on a plane different from a dotted line ® that the compressed air is injected through the compressed air inlet 210.
[40] The exhaust compressed air flows in a direction of a dotted line © along the second guide 222 and the induction conduit 230. The surrounding air that is in a free state without any restriction flows from the upper of the air amplifier 200 in a direction of a dotted line ®.
[41] In more detail, the compressed air that is amplified in the air amplifier 200 absorbs air in the upper of the air amplifier 200 and is supplied in a direction of the bag filter 300 along the induction conduit 230, so that a much larger amount of air is supplied to the bag filter 300 than is supplied to the compressed air supply means, thereby increasing dedusting efficiency. At this time, since there is no other equipments in the upper of the air amplifier 200 that absorbs the surrounding air, an obstacle caused by
surrounding equipments is minimized, which entirely achieving amplification efficiency in the air amplifier 200.
[42] On the other hand, since a compressed air conduit is equally formed in the form of the spout conduits 110 at both sides of the induction conduit 230, the compressed air entered into the induction conduit 230 is equally distributed and supplied, thereby preventing an occurrence of an incomplete removal.
[43] While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.
[44]
Industrial Applicability
[45] As described above, a compressed air supply apparatus using an air amplifier of the present invention installs the air amplifier in the upper of two spout compressed air conduits, amplifies compressed air that is injected from the spout conduits in an upper direction, and exhausts the amplified compressed air through a space between the two spout conduits in a direction of a bag filter in the opposite direction of 180 that the compressed air is injected, thereby minimizing an obstacle of another external equipment when surrounding air is absorbed, maximizing the Coanda effect, and remarkably enhancing a dedusting effect of contaminants attached to the bag filter.
[46]
[47]
[48]
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