KR102210688B1 - Air compressor moisture separator - Google Patents

Abstract

A moisture separator of an air compressor according to one embodiment of the present invention comprises: a cap block (10) having an inlet (11) and an outlet (12); a nozzle unit (20) in which a first nozzle hole (23) is formed, such that compressed air can pass from the inlet (11) through the first nozzle hole (23) to be firstly expanded; an inner cylinder (30) in which a first inner wall (37) is arranged to block the first nozzle hole (23), and a second nozzle hole (33) is formed at a second inner wall (38), such that the compressed air can collide against the first inner wall (37) to allow moisture to be firstly condensed and can be secondly expanded while passing through the second nozzle hole (33); a first moisture collecting unit (40) installed between the first inner wall (37) and the second inner wall (38) to firstly collect moisture; and an outer cylinder (50) in which a third inner wall (53) is arranged to block the second nozzle hole (33), such that the condensed air can collide against the third inner wall (53) to allow moisture to be secondly condensed, and that the condensed air can flow toward the outlet (12). Therefore, moisture contained in compressed air can be separated.

Description

Air compressor moisture separator

The present invention relates to a water separator of an air compressor capable of separating water contained in compressed air.

In general, an air compressor can compress air and store the compressed air in a high-pressure tank. Compressed air may operate a pneumatic machine mechanism or the like, and may be provided to an air gun and used to inject or clean the tube. That is, compressed air can be widely used in various fields.

Compressed air may contain moisture contained in the air, and such moisture may condense in the form of water droplets.

Various mechanical devices are made of metal or are closely related to metal, and since moisture corrodes metal, moisture must be removed from compressed air.

KR 20-0447369 Y1 KR 10-2002-0075351 A KR 10-0841249 B1

Therefore, the technical problem to be achieved by the present invention is to be able to separate moisture contained in compressed air, in particular, to more actively and reliably condense moisture and to suppress condensed moisture from being included in compressed air again. To provide a water separator for an air compressor that has a purpose.

A water separator of an air compressor according to an embodiment of the present invention for achieving the above technical problem includes: a cap block 10 having an inlet 11 and an outlet 12 formed thereon; A nozzle unit (20) having a first nozzle hole (23) formed, and allowing compressed air to first expand from the inlet (11) through the first nozzle hole (23); A first inner wall 37 is disposed to block the first nozzle hole 23, a second inner wall 38 is formed below the first inner wall 37, and a second inner wall 38 is formed on the second inner wall 38. An inner cylinder 30 having 2 nozzle holes 33 formed, compressed air hitting the first inner wall 37 so that moisture is first condensed and secondarily expanded while passing through the second nozzle hole 33; A first moisture collecting unit 40 installed between the first inner wall 37 and the second inner wall 38 to collect moisture first; And a third inner wall 53 is disposed to block the second nozzle hole 33, and compressed air hits the third inner wall 53 so that moisture is secondarily condensed, and the compressed air is directed toward the outlet 12. It includes an outer cylinder 50 to flow.

In addition, in the water separator of the air compressor according to an embodiment of the present invention, the first water collecting unit 40 has an eye size of 125 µm and a metal mesh is stacked in four layers, or , The eye size of the metal net may be 150 μm, and the metal net may be stacked in 3 or 4 layers.

In addition, the water separator of the air compressor according to an exemplary embodiment of the present invention may further include a second water collecting unit 60 installed in the outer cylinder 50 to collect water secondary.

In addition, in the water separator of the air compressor according to the embodiment of the present invention, the first nozzle hole 23 and the second nozzle hole 33 are formed in a form having a narrow inside and a wide outside, so that the compressed air is It may be expanded immediately after passing through the first and second nozzle holes 23 and 33.

In addition, in the water separator of the air compressor according to an embodiment of the present invention, the cap block 10, the nozzle unit 20, the inner cylinder 30, and the outer cylinder 50 may be made of a metal material.

In addition, in the water separator of the air compressor according to the embodiment of the present invention, a first port 15 is formed to be connected to the inlet 11 and a second port 16 is formed to be connected to the outlet 12 In addition, a first pressure gauge may be installed in the first port 15 and a second pressure gauge may be installed in the second port 16.

In addition, the water separator of the air compressor according to the embodiment of the present invention is installed on the bottom of the outer cylinder 50 to automatically open when moisture is collected in the second moisture collecting unit 60 to discharge moisture to the outside. It can be configured to include an auto drain unit 70 to be made.

Details of other embodiments are included in the detailed description and drawings.

The water separator of the air compressor according to the embodiment of the present invention made as described above may condense moisture in the process of expanding and expanding compressed air, and condensed moisture is trapped in the filter, whereby the condensed moisture is Compressed air from which moisture has been removed can be exported by preventing it from being contained in the compressed air again.

In addition, the water separator of the air compressor according to the embodiment of the present invention can more reliably condense moisture by expanding the compressed air two or more times.

1 is a cross-sectional view of an assembled state for explaining a water separator of an air compressor according to an embodiment of the present invention.
2 is an exploded view illustrating the configuration of a water separator of an air compressor according to an embodiment of the present invention.
FIG. 3 is a detailed view showing an enlarged portion “A” in FIG. 1.
4 is a detailed view showing an enlarged portion "B" in FIG. 1.
5 is a table showing the performance evaluation of the first moisture collecting unit.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are illustratively shown to aid understanding of the present invention, and it should be understood that the present invention may be variously modified and implemented differently from the embodiments described herein. However, when it is determined that a detailed description of a related known function or component may unnecessarily obscure the subject matter of the present invention while describing the present invention, the detailed description and detailed illustration thereof will be omitted. In addition, the accompanying drawings are not drawn to scale to aid understanding of the invention, but the size of some components may be exaggerated.

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

On the other hand, terms to be described later are terms set in consideration of functions in the present invention and may vary according to the intention or custom of the producer, so the definition should be made based on the contents throughout the present specification.

The same reference numerals refer to the same elements throughout the specification.

Hereinafter, a water separator of an air compressor according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

1 is a cross-sectional view of an assembled state for explaining a water separator of an air compressor according to an embodiment of the present invention. 2 is an exploded view illustrating the configuration of a water separator of an air compressor according to an embodiment of the present invention. FIG. 3 is a detailed view showing an enlarged portion “A” in FIG. 1. 4 is a detailed view showing an enlarged portion "B" in FIG. 1.

The water separator of the air compressor according to the embodiment of the present invention includes the cap block 10, the nozzle unit 20, the inner cylinder 30, the first and second moisture collecting units 40 and 60, and the outer cylinder 50. And an auto drain unit 70.

The cap block 10 may include an inlet 11 and an outlet 12. Compressed air may be introduced through the inlet 11 and compressed air from which moisture has been removed may be discharged through the outlet 12.

As shown in FIGS. 1 and 2, the cap block 10 may have a first female screw 13 connected to the inlet 11. In addition, a through hole 14 may be formed in the cap block 10 to be connected to the outlet 12. In addition, the cap block 10 may have a second female screw 17 formed under it.

The nozzle unit 20 may have a first nozzle hole 23 formed in the first body 21 as shown in FIGS. 1 to 3. On the other hand, the nozzle unit 20 may be formed in a tube shape and the bottom may be clogged. For example, an end wall 22 is formed on the bottom of the nozzle unit 20 so that the fluid passes through the first nozzle hole 23. It can flow through.

In addition, as shown in FIGS. 1 and 2, the nozzle unit 20 may have a first male screw 24 formed thereon, and a second male screw 25 at a position higher than the first nozzle hole 23. ) Can be formed.

The first male screw 24 may be fastened to the first female screw 13, whereby compressed air introduced through the inlet 11 may be introduced into the nozzle unit 20.

In addition, a packing for maintaining airtightness may be installed between the cap block 10 and the nozzle unit 20.

The nozzle unit 20 may allow compressed air to pass through the first nozzle hole 23 from the inlet 11, and the compressed air may first expand while passing through the first nozzle hole 23. In the process of primary expansion, moisture contained in compressed air may condense.

In the inner cylinder 30, a first inner wall 37 may be disposed to block the first nozzle hole 23, and a second inner wall 38 may be formed below the first inner wall 37. In addition, a second nozzle hole 33 may be formed in the second inner wall 38. In addition, the lower portion of the inner cylinder 30 may be closed as shown in FIGS. 1 and 2.

In addition, the inner cylinder 30 may have a third female screw 34 formed thereon, and the third female screw 34 may be fastened to the second male screw 25.

The compressed air collides with the first inner wall 37 and is cooled while exchanging heat with the inner cylinder 30, so that moisture may be first condensed.

In addition, the compressed air may secondarily expand while passing through the second nozzle hole 33. In the process of secondary expansion, moisture contained in the compressed air may condense.

The first moisture collecting unit 40 may be installed between the first inner wall 37 and the second inner wall 38. In more detail, the filter mount 35 may be formed on the inner cylinder 30, and the first snap ring 36 after the first moisture collecting unit 40 is inserted into the filter mount 35 As a result, the first moisture collecting unit 40 may be fixed.

The first snap ring 36 may be mounted in a groove formed in the inner wall of the inner cylinder 30.

The first moisture collecting unit 40 may first collect moisture. The first moisture collecting unit 40 may adsorb moisture contained in air. This will be described with reference to FIG. 5. 5 is a table showing the performance evaluation of the first moisture collecting unit.

In more detail, FIG. 5 shows the performance evaluation by configuring the first moisture collection unit 40 with a metal net according to the national standard, standard number KS A 5101-1, and the final revision confirmation date 2019.11.22.

The snow size of the metal net is 106, 125, 150, 180 and 212㎛ prepared, and each metal net is stacked from 1 to 4 layers to remove moisture contained in the air, and the moisture removal rate (%) and the first moisture collection The difference between the pressure before passing through the unit 40 and the pressure after passing is expressed as a differential pressure (kg/cm2).

When the snow size of the metal mesh is 106㎛, the differential pressure is low, but the moisture removal rate is evaluated to be low.

Although the difference in pressure was low when the snow size of the metal mesh was 125 μm, the moisture removal rate was evaluated low when it was composed of 1 to 3 layers, and the moisture removal rate was evaluated as 85.7 when it was composed of 4 layers.

When the snow size of the metal mesh is 150 μm, the differential pressure is low, but the moisture removal rate was evaluated to be low when composed of 1 to 2 layers, and the moisture removal rate was 84.3% and 99.9% when composed of 3 or 4 layers. It evaluated well. In particular, when the metal mesh had an eye size of 150 μm and consisted of four layers, it showed a remarkable effect of almost completely removing moisture at 99.9%.

When the snow size of the metal mesh is 180, 212㎛, and when it is composed of 1 to 3 layers, the moisture removal rate (%) was evaluated to be below normal, and the size of the snow was too small, and foreign substances such as dust blocked the metal mesh and the differential pressure increased. In particular, there was a problem that the flow of air was rapidly slowed down.

In addition, when the snow size of the metal mesh is composed of four layers of 180 and 212㎛, the moisture removal rate (%) was evaluated well, but the size of the snow is too small, and the differential pressure is too high because foreign substances such as dust block the metal mesh. There was a problem that the flow of the was rapidly slowed.

Accordingly, in the water separator of the air compressor according to the exemplary embodiment of the present invention, the first water collecting unit 40 may have a metal mesh having an eye size of 125 μm, and a metal mesh stacked in four layers.

In addition, according to the water separator of the air compressor according to an embodiment of the present invention, the first water collecting unit 40, the eye size of the metal mesh is 150㎛, the metal mesh is superimposed in three or four layers. It can be composed of.

On the other hand, the inner cylinder 30 may be provided in a tubular shape, and an end portion of the tubular body may be closed below the second nozzle hole 33. In the closed configuration, after inserting the end disk 32 into the end of the inner cylinder 30, the end disk 32 may be fixed with a second snap ring 46. The second snap ring 46 may be installed in a groove formed on the inner surface of the inner cylinder 30.

The outer cylinder 50 may be disposed such that a third inner wall 53 blocks the second nozzle hole 33. In addition, the outer cylinder 50 may have a first male screw 51 formed thereon, and the first male screw 51 may be fastened to the second female screw 17 as shown in FIG. 1.

The compressed air collides with the third inner wall 53 and is cooled while exchanging heat with the outer cylinder 50, so that moisture may be secondary condensation.

In addition, the outer cylinder 50 may guide compressed air to flow toward the outlet 12. That is, the compressed air may move through the space formed between the outer cylinder 50 and the inner cylinder 30, and may flow to the outlet 12 through the through hole 14 formed in the cap block 10. .

The second moisture collecting unit 60 may be installed in the outer cylinder 50 and may secondarily collect moisture. The second moisture collecting unit 60 may be formed of a metal and may be provided in a form in which a thin wire is twisted and bundled. The second moisture collecting unit 60 may contain moisture, thereby more strongly suppressing moisture from being contained in the compressed air moving toward the outlet 12.

That is, the water separator of the air compressor according to the embodiment of the present invention can more reliably condense moisture contained in the compressed air by expanding the compressed air a plurality of times and cooling the compressed air a plurality of times. Can be confined.

Therefore, the water separator of the air compressor according to the embodiment of the present invention can more reliably and completely separate the water contained in the compressed air.

On the other hand, the first nozzle hole 23 may be formed in a narrow inner and wide outer shape as shown in FIG. 3, and likewise, the second nozzle hole 33 is inner as shown in FIG. It can be formed in a narrow and wide outer shape.

Accordingly, immediately after the compressed air passes through the first and second nozzle holes 23 and 33, the cross-sectional area rapidly widens, so that the volume of the compressed air may be expanded. The rapid expansion of the compressed air can lower the temperature, thereby allowing moisture to condense more actively.

On the other hand, the cap block 10, the nozzle unit 20, the inner cylinder 30, and the outer cylinder 50 may be made of metal. In more detail, the metal material may be aluminum, copper alloy, stainless steel, or the like.

In the water separator of the air compressor according to the exemplary embodiment of the present invention, since the cap block 10 and the outer cylinder 50 are exposed to outside air, they can be cooled by outside air.

The inner cylinder 30 is screwed with the cap block 10 or the nozzle unit 20, and heat energy of the inner cylinder 30 may be transferred to the cap block 10 more quickly and cooled.

That is, compressed air may be cooled while in contact with the inner cylinder 30 or the outer cylinder 50, and moisture may condense and flow down while cooling is in progress.

In particular, the water separator of the air compressor according to the embodiment of the present invention is compressed by providing the cap block 10, the nozzle unit 20, the inner cylinder 30, and the outer cylinder 50 of a metal material. The heat energy obtained by heat exchange due to air can be radiated to the outside, thereby increasing the moisture condensation effect.

On the other hand, as shown in FIG. 1, a first port 15 may be formed to be connected to the inlet 11, and a second port 16 may be formed to be connected to the outlet 12. have. A first pressure gauge may be installed in the first port 15 and a second pressure gauge may be installed in the second port 16.

When the performance of the first moisture collecting unit 40 is good, the first pressure value measured by the first pressure gauge and the second pressure value measured by the second pressure gauge may be the same or similar.

When the moisture is saturated, the first moisture collecting unit 40 may not be able to receive more moisture, so that the moisture removal effect may be lowered. As such, when the performance of the first moisture collecting unit 40 is lowered, a pressure difference may occur, and as a result, the first pressure value measured by the first pressure gauge and the second pressure value measured by the second pressure gauge are easily known. The difference can be wide enough to make it possible.

That is, the water separator of the air compressor according to the embodiment of the present invention can estimate the current performance of the first water collecting unit 40 based on the measured values of the first and second pressure gauges, It is possible to estimate the inspection timing of the unit 40.

When checking or replacing the first moisture collecting unit 40, disassemble the cap block 10 in the order of the outer cylinder 50, the inner cylinder 30, and the first snap ring 36, and After checking the collection unit 40, it can be assembled in the reverse order.

On the other hand, the water separator of the air compressor according to the embodiment of the present invention may include an auto drain unit 70.

The auto drain unit 70 may be installed on the bottom of the outer cylinder 50 as shown in FIG. 1. The auto drain unit 70 is automatically opened when moisture is collected in the second moisture collecting unit 60 to discharge moisture to the outside. That is, the auto drain unit 70 may be opened when moisture reaches a set water level, otherwise it may be closed. Since the auto drain unit 70 uses a known technique, a more detailed description will be omitted.

As shown in FIGS. 1 and 2, the outer cylinder 50 may have an end cap 80 installed on the bottom, and the auto drain unit 70 may be installed above the end cap 80.

A fourth female screw 52 may be formed under the outer cylinder 50, and a fourth male screw 81 may be formed on the end cap 80. That is, by fastening the fourth male screw 81 to the fourth female screw 52, the end cap 80 can be installed on the outer cylinder 50.

Meanwhile, a drain hole 82 may be connected to the end cap 80 and a hose and a valve may be connected to the drain hole 82, and the valve may be manually opened or closed.

The user can periodically open the valve to discharge water as moisture, or open the valve by referring to the pressure measured values of the first and second pressure gauges.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. I will be able to.

Therefore, the embodiments described above should be understood as illustrative and non-limiting in all respects, and the scope of the present invention is indicated by the claims to be described later, and derived from the meaning and scope of the claims and the concept of equivalents thereof. All changes or modified forms should be construed as being included in the scope of the present invention.

The water separator of the air compressor according to the embodiment of the present invention may be used to separate water from compressed air.

10: cap block 11: inlet
12: Outlets 13, 17, 34, 52: 1st to 4th female thread
14: through hole 15, 16: first, second port
20: nozzle unit 21, 31: first, second body
22: end wall 23, 33: No. 1, 33 nozzle hole
24, 25, 51, 81: 1st to 4th male thread
30: inner cylinder 32: end disk
35: filter mount 36, 46: first, second snap ring
37: inner wall
40, 60: first and second moisture collection unit 50: outer cylinder
70: auto drain unit
80: end cap 82: drain hole

Claims (7)

A cap block 10 in which the inlet 11 and the outlet 12 are formed;
A nozzle unit (20) having a first nozzle hole (23) formed, and allowing compressed air to first expand from the inlet (11) through the first nozzle hole (23);
A first inner wall 37 is disposed to block the first nozzle hole 23, a second inner wall 38 is formed below the first inner wall 37, and a second inner wall 38 is formed on the second inner wall 38. An inner cylinder 30 having 2 nozzle holes 33 formed, compressed air hitting the first inner wall 37 so that moisture is first condensed and secondarily expanded while passing through the second nozzle hole 33;
A first moisture collecting unit 40 installed between the first inner wall 37 and the second inner wall 38 to collect moisture first;
A third inner wall 53 is disposed to block the second nozzle hole 33, and compressed air hits the third inner wall 53 so that moisture is condensed secondarily, and compressed air flows toward the outlet 12. An outer cylinder 50 to allow;
An auto drain unit 70 installed on the bottom of the outer cylinder 50 to automatically open when moisture is collected in the second moisture collecting unit 60 to discharge moisture to the outside; And
Including; a second moisture collecting unit 60 installed in the outer cylinder 50 to collect moisture secondary
The first moisture collecting unit 40,
The eye size of the metal net is 125 μm, the metal net is superimposed in 4 layers, or the eye size of the metal net is 150 μm, and the metal net is superimposed in 3 or 4 layers,
The first nozzle hole 23 and the second nozzle hole 33 are formed in a narrow inner and wide outer shape, so that the compressed air passes through the first and second nozzle holes 23 and 33. Expand,
The cap block 10, the nozzle unit 20, the inner cylinder 30, and the outer cylinder 50 are made of metal,
A first port 15 is formed to be connected to the inlet 11,
A second port 16 is formed to be connected to the outlet 12,
A first pressure gauge is installed in the first port 15, and a second pressure gauge is installed in the second port 16,
An end wall 22 is formed on the bottom of the nozzle unit 20,
A water separator of an air compressor in which an end disk (32) is fixed to the end of the inner cylinder (30). delete delete delete delete delete delete

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