KR100780839B1 - filter for compressor - Google Patents

Abstract

The present invention relates to a compressor filter for filtering water and foreign matter contained in the compressed air. The present invention provides a chamber comprising: an inlet through which hot compressed air supplied from a compressor is introduced, an outlet through which the compressed air flows out, and a passage connecting the inlet and the outlet; And a cooling member disposed on the passage of the chamber, wherein the cooling member has an injection path extending from the center portion toward the inner circumferential surface of the chamber, and compressed from the inlet through the injection path. It is characterized in that it is a filter for a compressor that allows air to be injected. Therefore, the present invention can maximize the compression efficiency of the compressor by rapidly cooling the high-temperature compressed air, the advantage of improving the performance and life of the industrial equipment using compressed air by filtering the condensed water and foreign matter contained in the compressed air There is this.

Description

Filter for compressor

1 is a sectional view schematically showing an example of a conventional filter for a compressor.

2 is an exploded perspective view of a compressor filter according to an embodiment of the present invention.

3 is a cross-sectional view of the compressor filter shown in FIG. 2.

4 is a perspective view of an injection member of the compressor filter shown in FIG. 2.

FIG. 5 is a bottom view of the compressor filter shown in FIG. 2. FIG.

6 is a cross-sectional view for describing an operating state of the compressor filter illustrated in FIG. 2.

<Description of the symbols for the main parts of the drawings>

100 ... chamber 110 ... housing

120 ... Cover 122 ... Inlet

124.Outlet 130 ... Euro

200 ... cooling member 210 ... vortex spring

220 Diffuser 222 Guide Bar

224 fixing piece 230 spraying member

232 ... Euro 234 ... Injection groove

300 ... guide tube 310 ... baffle chin

400 Honing Hall 420 Mesh Mesh

500 ... Eliminator 600 ... Deflector

611 ... Vortex deflection groove 700 ... Roll filter

The present invention relates to a compressor filter for removing moisture and foreign matter contained in the compressed air supplied from the compressor, more specifically, to maximize the compression efficiency of the compressor by rapidly cooling the high-temperature compressed air, at the same time included in the compressed air The present invention relates to a compressor filter that can improve performance and lifespan of industrial equipment using compressed air by filtering out discharged moisture and foreign substances.

In general, the compressed air discharged from the compressor is used in the industry such as pneumatic valves, air cylinders. Compressed air discharged from the compressor is generally high temperature and contains moisture and foreign matter. The compressed air is cooled while passing through the apparatus using the compressed air, the density increases, the pressure decreases, and moisture condenses, thereby reducing the service life and operating efficiency of the apparatus using the compressed air.

As is generally known, a compressor filter is used to filter foreign matter and water, such as oil and fine particles, contained in compressed air discharged from the compressor.

Among such conventional compressor filters, the "air compressor filter" described in Korean Utility Model Registration No. 169181 will be described as an example. As shown in FIG. 1, the compressor filter filters moisture of compressed air. A main body 2, an inlet 1 through which compressed air flows into the main body 2, and an outlet 3 through which the compressed air is discharged from the main body 2.

The inlet (1) is provided with a rotating oil tool (6) to enter the inside of the main body (2) while the compressed air introduced into the inlet (1) is rotated. The compressed air introduced into the main body 2 through the rotary oil tool 6 rotates inside the main body, and hits the first plate 10 provided above the main body. The compressed air introduced from the inlet 1 is rotated in the main body 2 until it hits the first plate 10 and passes over a long distance, and the compressed air is cooled in this process. As the compressed air is cooled as described above, moisture contained in the compressed air is condensed and discharged through the trap 4 installed under the main body 2.

The compressed air hit by the first plate 10 becomes turbulent while passing through the through hole 9 formed in the first plate 10, and the second plate 11 installed above the first plate 10 again. ), It cools and condenses moisture. The compressed air hitting the second plate 11 is discharged through the through hole 9 'formed in the second plate 11, and is discharged through the outlet 3 to the apparatus using the compressed air. When the compressed air hits the first plate 10 and the second plate 11 while cooling, water vapor in the compressed air condenses, thereby separating the first plate 10, the second plate 11, and the main body 2. It flows down along the inner wall and is discharged to the outside through the trap (4).

However, the conventional compressor filter of this type does not filter the water by cooling the compressed air sufficiently, and at the same time discharges the compressed air in a state where the density of the compressed air is not sufficiently increased, thereby reducing the efficiency of the compressor. have.

That is, even if the air is compressed and discharged at high pressure from the compressor, if the compressed air with low density is discharged due to the high temperature of the compressed air, the compressed air is cooled while the compressed air is used, the density is high and the pressure is low, and the compressed air is There is a problem of degrading the performance of a device using air. In addition, moisture condensed while the compressed air is cooled has a problem of shortening the life of the apparatus using the compressed air.

The present invention has been made in view of the above necessity, it is possible to maximize the compression efficiency of the compressor by rapidly cooling the high-temperature compressed air, the device using the compressed air by effectively filtering the moisture and foreign matter contained in the compressed air It is an object of the present invention to provide a filter for a compressor that can improve the performance and life of the compressor.

The compressor filter according to the present invention for achieving the above object is provided with an inlet for the high-temperature compressed air supplied from the compressor, an outlet for the compressed air outflow, and a flow path connecting the inlet and the outlet chamber; And a cooling member disposed on the passage of the chamber, wherein the cooling member has an injection path extending from the center portion toward the inner circumferential surface of the chamber, and compressed from the inlet through the injection path. It is characterized in that it is a filter for a compressor that allows air to be injected.

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

2 is an exploded perspective view of a compressor filter according to an embodiment of the present invention, FIG. 3 is a cross-sectional view of the compressor filter shown in FIG. 2, and FIGS. 4 and 5 are views of the compressor filter shown in FIG. 2, respectively. A perspective view and a bottom view of the jetting member.

2 to 5, the compressor filter of the present embodiment includes a chamber 100, a cooling member 200, a guide tube 300, a honing tube 400, and a deflector 600.

The chamber 100 includes a housing 110 and a cover 120 screwed to the housing 110.

The housing 110 is formed in a container shape of which the upper side is opened, and the male screw portion 114 is formed on the outer peripheral surface of the upper side, and the drain hole 112 is formed at the lower portion to discharge the moisture separated from the compressed air. have. A trap (not shown) is connected to the drain hole 112 to collect moisture discharged from the drain hole 112 and to be discharged to the outside at an appropriate time.

The cover 120 is coupled to the upper side of the housing 110 to seal the inner space of the housing 110. A female thread part 128 is formed on an inner circumferential surface of the cover 120, and the male thread part 114 of the housing 110 is fastened to each other by screwing, so that the cover 120 and the housing 110 are coupled to each other. do.

The cover 120 is formed with an inlet 122 through which compressed air flows into the chamber 100 and an outlet 124 through which the compressed air inside the chamber 100 is discharged to the outside. Compressed air introduced into the inlet 122 through the supply hose P of the compressor connected to the inlet 122 is passed through the outlet 124 through the flow passage 130 formed in the chamber 100. Discharged.

In addition, a tab hole 126 is formed in the inner central portion of the cover 120 so that the diffuser 220 of the cooling member 200, which will be described later, is screwed to the tab hole 126.

The cooling member 200 is disposed in the flow path 130 inside the chamber 100, and includes an injection member 230, a diffuser 220, and a vortex spring 210.

The injection member 230 has a guide passage 232 for guiding the compressed air introduced into the inlet 122 to the center portion of the injection member 230, a plurality of injection grooves 234 horizontally on the bottom Formed. The injection grooves 234 are radially disposed to have the same angular interval in the circumferential direction, and extend toward the inner circumferential surface of the housing 110 from where the bottom surface of the injection member 230 meets the guide passage 232. do.

The guide passage 232 of the injection member 230 is an inflow passage formed such that the inner diameter thereof becomes smaller toward the traveling direction of the compressed air so as to effectively guide the compressed air introduced from the inlet 122 into the injection groove 234. 232a).

In addition, the injection member 230 is in contact with the inner upper side of the cover 120 to form a flow path 130 from the inlet 122 to the inlet flow path 232a, the injection member 230 The sealing groove 236 is formed on the upper side of the sealing groove 236 is equipped with an O-ring (S; O-ring) is airtight the portion where the injection member 230 and the cover 120 contact.

The outer circumferential surface of the injection member 230 is formed with a male screw portion 238 for coupling the guide tube 300 to be described later.

The diffuser 220 is disposed such that its upper surface is in contact with the bottom surface of the injection member 230, and the compressed air is injected into the inner circumferential surface of the housing 110 together with the injection groove 234 of the injection member 230. A spray path is formed.

Each of the injection grooves 234 is shown in FIGS. 4 and 5 such that the compressed air is vortexed while passing through the injection path 234 of the injection member 230 and the injection path provided by the diffuser 220. As shown, it is formed in a curved shape, the injection grooves 234 preferably have the same curvature with each other.

The diffuser 220 has a guide bar 222 penetrating the guide passage 232 of the injection member 230, the male screw portion 226 is formed at the upper end of the guide bar 222, As described above, the tap hole 126 of the cover 120 is screwed. At this time, the guide bar 222 of the diffuser 220 is screwed to the tab hole 126 of the cover 120, the upper surface of the diffuser 220 is the injection member 230 to the cover 120 You are supported by pressure.

The vortex spring 210 is disposed in the guide passage 232 of the injection member 230 to induce the compressed air flowing into the guide passage 232 to become a vortex. The vortex spring ring 210 is preferably formed to have a smaller diameter toward the advancing direction of the compressed air to effectively guide the vortex of the compressed air to the injection path by interaction with the inflow passage (232a).

On the other hand, the guide bar 222 of the diffuser 220 is provided with a fixing piece 224 extending in the horizontal direction, by fixing while supporting the vortex spring 210 from the upper side, by the flow of the compressed air The vortex spring 210 is prevented from shaking.

The guide tube 300 has a cylindrical shape, the inner diameter of which is larger than the outer diameter of the injection member 230, the female screw portion 330 formed on the upper portion is coupled to the male screw portion 238 of the injection member 230. . The water separated from the compressed air and the compressed air injected in the vortex form through the injection path of the cooling member 200 is directed to the flow path 130 below by hitting the inner wall of the guide tube (300).

On the other hand, the outer circumferential surface of the guide tube 300 is formed with a coupling protrusion 320 is coupled to the roll filter 700 to be described later.

The honing tube 400 has a cylindrical shape, is coupled to the lower portion of the guide tube 300 to form a part of the flow path 130, and guides the compressed air and moisture downward. On the inner circumferential surface of the honing tube 400, as shown in FIG. 3, a spiral groove 401 is formed to guide the vortex of the compressed air. The spiral groove 401 is formed spirally in width and inclination. On the inner circumferential surface of the guide tube 300, a baffle jaw 310 is formed so that the water separated from the compressed air injected from the cooling member 200 hits and flows down.

In addition, a mounting groove 410 is formed at the center of the inner side of the honing tube 400 to mount a filtration member for filtering foreign substances contained in the compressed air. The filtration member is preferably implemented by a mesh network 420, and the mesh network 420 is mounted in the mounting groove 410 of the honing tube 400 by overlapping in multiple stages.

The deflector 600 is screwed to the lower portion of the honing tube 400, and has a diffusion plate 610 that is compressed by the compressed air flowing out of the honing tube 400. A plurality of vortex deflection grooves 611 are formed at predetermined intervals along the outer circumference of the diffusion plate 610 so that the direction of the vortex of the compressed air diffused by hitting the diffusion plate 610 is rapidly changed. As shown in FIGS. 2 and 3, the vortex deflecting grooves 611 are formed to be inclined in a direction opposite to the vortex direction of the compressed air passing through the honing tube 400, thereby rapidly changing the direction of the compressed air. It is preferable to make the switch.

On the other hand, the fixing groove 620 is formed on the upper side of the diffuser plate 610 of the deflector 600, the eliminator 500 to be described later is installed.

The eliminator 500 has a cylindrical shape and is fixed between the bottom of the honing tube 400 and the fixing groove 620 of the deflector 600. The eliminator 500 is made of a porous material, to filter foreign matter containing the compressed air. In addition, the eliminator 500 hits or flows down the inner wall of the eliminator 500 before the water separated from the compressed air hits the diffuser plate 610 of the deflector 600 or the eliminator Absorbed at 500, the moisture separated from the compressed air is again scattered to prevent mixing with the compressed air.

The roll filter 700 made of a porous material is disposed on the flow path 130 of the compressed air moving toward the outlet 124 via the deflector 600 to filter the foreign matter contained in the compressed air once again. The roll filter 700 is disposed between the outer circumferential surface of the guide tube 300 and the inner wall of the housing 110, the coupling groove 710 is formed on the inner circumferential surface of the roll filter 700, as described above As such, the coupling protrusion 320 is formed on the outer circumferential surface of the guide tube 300 and coupled thereto.

Hereinafter, the function of the compressor filter of the present embodiment configured as described above will be described.

Arrows indicated by dotted lines in FIG. 6 indicate a path through which the compressed air introduced into the inlet 122 of the chamber 100 passes through the flow passage 130 and is discharged to the outlet 124.

First, when the hot compressed air supplied from the compressor flows into the chamber 100 through the inlet 122 of the chamber 100, the compressed air is injected along the flow path 130. Leads to an inflow passage 232a. Since the inflow passage 232a is formed to have a smaller inner diameter toward the lower side, the compressed air is further compressed while passing through the inflow passage 232a. On the other hand, the compressed air enters the injection paths while rotating in the vortex form by the vortex spring 210 disposed in the guide passage 232. Since the size of the flow cross section of the injection paths formed by the injection grooves 234 and the diffuser 220 is very small compared to the size of the flow cross section of the guide passage 232, the pressure of the compressed air is further increased. And via the injection paths. At this time, the injection paths, as shown in Figure 4 and 5, because they are formed in a curved shape having the same curvature with each other, the compressed air is further enhanced the rotation of the vortex while passing through the injection paths.

Compressed air passing through each of the injection paths is suddenly discharged into a wide space at the exit of the injection path, the pressure is temporarily dropped by the Bernoulli principle. The compressed air is adiabaticly expanded due to such a decrease in pressure, and the thermal energy of the compressed air is consumed in the form of work while the compressed air expands and is cooled as the temperature drops. When the compressed air is cooled in this way and the temperature of the compressed air falls below the dew point temperature of the water vapor contained in the compressed air, a part of the water vapor condenses into moisture.

On the other hand, the compressed air discharged from the injection paths sequentially introduced into the guide tube 300 and the honing tube 400 is rotated in the guide tube 300 and the honing tube 400 in a vortex form. . The moisture condensed and separated from the compressed air and foreign matter contained in the compressed air have a greater density than the compressed air, and thus receive more centrifugal force due to the rotation of the compressed air, that is, the outside of the guide tube 300 and honing. The air, which is pushed toward the inner circumferential surface of the pipe 400 and has a relatively small density, is driven inward, that is, toward the central axis of the guide pipe 300 and the honing pipe 400. Pushed into the inner circumferential surface of the guide tube 300 and the honing tube 400, the water hit the inner wall flows down along the inner wall.

In addition, when the air hits the baffle jaw 310 of the guide tube 300 together with the moisture condensed and separated from the compressed air, the moisture is compressed air while the traveling directions are different from each other due to the density difference between the moisture and the air. The phenomenon of separation from is further accelerated.

In addition, since the spiral groove 401 is formed on the inner circumferential surface of the honing tube 400, the vortex of the compressed air continues while being guided along the spiral groove 401, and water and foreign matter are separated from the compressed air. Is improved.

While passing through the mesh network 420 installed in the honing pipe 400, the foreign matter contained in the compressed air is subjected to the process of filtering.

Compressed air discharged from the honing tube 400 is filtered once again while passing through the eliminator 500 of the porous material. In addition, the eliminator 500 is buried in the eliminator 500 before the water of the very small particles separated from the compressed air hit the deflector 600 and merged with other small moisture particles flows downwards It acts to lower. The compressed air passing through the eliminator 500 hits the diffuser plate 610 of the deflector 600. Compressed air striking the diffusion plate 610 is rapidly changed in the direction of travel, at this time, the dense moisture is moved downward and the high density air is moved upward. Vortex deflection groove 611 formed in the diffusion plate 610 serves to further strengthen the action of the deflector 600.

Through the above process, the water separated from the compressed air flows downward and is discharged to the drain hole 112, and is collected and discarded in the trap (not shown) installed in the drain hole 112.

Compressed air passing through the deflector 600 is moved to the upper direction by changing the direction along the flow path 130 by hitting the lower surface of the housing 110, foreign matter is once again in the roll filter 700 of the porous material After filtering, it is supplied to the apparatus using the compressed air through the outlet 124.

On the other hand, the compressed air discharged from the cooling member 200 and cooled due to adiabatic expansion and water is removed, the density is higher because the temperature is lower than the compressed air flowing into the inlet 122, the flow path 130 Through the process, the volume gradually contracts again and the pressure increases.

That is, while compressed air flowing into the inlet 122 is high in temperature, low in density, and high in humidity, compressed air flowing out of the outlet 124 is low in temperature, high in density, and low in humidity.

Therefore, since the compressed air discharged from the compressor filter of the present embodiment has a high density, the pressure is dropped in the process used for the pneumatic device and the like, which does not cause malfunction of the pneumatic device or deteriorate its operating performance.

In addition, since moisture and foreign matter contained in the compressed air are filtered while passing through the compressor filter of the present embodiment, there is an advantage of not shortening the service life such as corroding the pneumatic device using the compressed air.

As mentioned above, although preferred embodiment was described about the present invention, the compressor filter of this invention is not limited to the structure of the form demonstrated above and shown by drawing.

For example, although the guide passage 232 has been described as having the inflow passage 232a formed to have an inner diameter smaller along the advancing direction of the compressed air, the compressor filter does not have the inflow passage 232a. You may.

In addition, a compressor filter without the honing tube 400, the eliminator 500, the roll filter 700, or the like may be configured, and a compressor filter without the deflector 600 may be configured.

In addition, the above-described injection grooves 234 are described as extending in a curved shape as shown in 4 and 5, but may also constitute a compressor filter having an injection groove extending in a different form as shown in the figure. .

In addition, the compressor filter may be provided without the vortex spring 210.

The present invention has the effect of improving the compression efficiency of the compressor by reducing the density by rapidly cooling the compressed air discharged from the compressor as described above in the embodiment.

That is, since the pressure of the compressed air discharged from the compressor is discharged without greatly reducing the pressure, the malfunction of the apparatus using the compressed air is prevented and the performance is improved.

In addition, the present invention has the effect of significantly improving the filtration efficiency of the water and foreign matter contained in the compressed air to extend the life of the device using the compressed air.

Claims (16)

A chamber having an inlet through which hot compressed air supplied from a compressor flows in, a outlet through which the compressed air flows out, and a flow path connecting the inlet and the outlet; And And a cooling member disposed on the flow path of the chamber. The cooling member has a spray path extending from the central portion toward the inner circumferential surface of the chamber, the compressed air received from the inlet through the spray path is injected, And a plurality of spray paths of the cooling member, wherein each of the spray paths is disposed radially, and each of the spray paths extends in a curved shape so that compressed air is vortexed while passing through the spray path. delete The method of claim 1, The cooling member, An injection member having a guide passage for guiding the compressed air introduced into the inlet toward the inlet of the injection path, and having an injection groove formed at a bottom thereof to form a part of the injection path; And And a diffuser disposed to contact the bottom surface of the injection member to form the injection path together with the injection groove of the injection member, and to allow the compressed air discharged from the injection path to diffuse toward the inner wall of the chamber. Compressor filter The method of claim 3, wherein The cooling member further includes a vortex spring disposed in the guide passage of the injection member to induce vortex of the compressed air. The diffuser is a compressor for a compressor, characterized in that it comprises a guide bar which is fixed to the chamber through the vortex spring and the guide flow path. The method of claim 4, wherein The guide flow path of the injection member, the compressor filter characterized in that it comprises an inlet flow path formed so that the inner diameter becomes smaller toward the traveling direction of the compressed air. The method of claim 4, wherein The vortex spring is a filter for a compressor, characterized in that the diameter is reduced toward the traveling direction of the compressed air to induce vortex of the compressed air. The method of claim 4, wherein Compressor filter, characterized in that the guide bar of the diffuser is provided with a fixing piece for holding and fixing the upper portion of the vortex spring to prevent the vortex spring from shaking by the flow of the compressed air. The method according to any one of claims 1, 3, 4, 5, 6, or 7, And a guide tube connected to the cooling member to guide the compressed air flowing out of the injection path to the flow path, and the water separated from the compressed air hits the inner circumferential surface of the compressor. . The method of claim 8, Compressor filter, characterized in that the inner circumferential surface of the guide tube, the baffle jaw is formed so that the water separated from the compressed air injected from the cooling member hits and flows down. The method of claim 8, Compressor filter characterized in that it further comprises a roll filter of the porous material is fitted between the outer periphery of the guide tube and the inner wall of the chamber to filter foreign matter contained in the compressed air flowing out to the outlet. The method of claim 8, Is installed in the lower portion of the guide tube, Compressor filter, characterized in that the inner circumferential surface further comprises a honing tube formed with a spiral groove for guiding the vortex of the compressed air. The method of claim 11, Compressor filter, characterized in that the honing tube, is provided with a filtration member for filtering the foreign matter contained in the compressed air. The method of claim 12, The filter member is a filter for a compressor, characterized in that consisting of a mesh network overlapping in multiple stages. The method of claim 11, And a deflector disposed below the honing tube, the deflector having a diffuser plate that strikes the compressed air flowing out of the honing tube and diffuses the compressed air. The method of claim 14, Compressor filter characterized in that a plurality of vortex deflecting grooves are formed on the outer periphery of the deflector so that the direction of the vortex of the compressed air diffused by hitting the deflector is sharply switched. The method of claim 14, A tubular eliminator that filters foreign substances in the compressed air discharged from the honing tube and prevents the water separated from the compressed air from scattering again is installed between the honing tube and the deflector, and the eliminator Compressor filter, characterized in that the porous material.

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