KR101897233B1 - Intake unit of air and intake method of air - Google Patents

Abstract

According to an embodiment of the present invention, the cooling device includes: a water tank having an accommodation space disposed on an upper portion of a material to be cooled and containing a refrigerant supplied from the outside; And at least one refrigerant inlet which is installed in the inside of the accommodation space and through which the refrigerant flows, is spaced apart from a central portion of the accommodation space toward the edge portion of the accommodation space and flows into the refrigerant inlet through the refrigerant inlet Wherein the height of the coolant inlet port is proportional to the distance from the center of the accommodation space.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air intake unit,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air suction unit and an air suction method, and more particularly, to an air suction unit and an air suction method capable of separating foreign matters in air through a cyclone cylinder.

Fig. 9 is a schematic view showing a conventional air liquefaction separator. The air compressor (10) compresses the air sucked through the suction side and supplies it to the cooling tower (20). At this time, the air is sucked in the state that the foreign substance is removed through the filter, and the fine dust which can not be removed is removed by contacting with the water in the cooling tower 20, and at the same time, the air is cooled.

The clean air is then passed through the main heat exchanger 30 to remove the moisture and carbon dioxide contained in the air and to remove the low temperature oxygen, nitrogen, and impure nitrogen gases that are separated from the top tower 42 of the rectifier 30 Cooled by heat exchange. High purity oxygen, nitrogen and argon gas are produced by non-gradual refining principle, and details are disclosed in Korean Patent Laid-Open Publication No. 2009-0119463.

On the other hand, when the air is sucked in the air compressor 10, foreign substances (such as insects such as sludge, powder, mosquitoes, etc.) are adsorbed to the outside of the filter, Should be. Therefore, the replacement cost is considerably required, and when the filter is clogged, the increase in the load of the compressor causes the cost increase.

Particularly, since fine dust flows into the cooling tower and accumulates in the cooling tower, the water needs to be drained and then cleaned, which causes considerable time and cost in maintenance.

Korean Patent Publication No. 2009-0119463 Nov. 19, 2009.

SUMMARY OF THE INVENTION An object of the present invention is to provide an air suction unit and an air suction method capable of separating foreign substances in the air.

Another object of the present invention is to provide an air suction unit and an air suction method that can significantly extend the replacement period of the filter.

Other objects of the present invention will become more apparent from the following detailed description and drawings.

According to one embodiment of the present invention, the air suction unit includes: a housing having at least one suction port and having an inner space into which air sucked through the suction port flows; A filter fixed to the outer surface of the housing in a state outside the suction port to filter air moving toward the suction port; And a cyclone cylinder fixed to an outer surface of the housing at a position outside the suction port, the cyclone cylinder having a separation space for accommodating the filter and an inlet port eccentrically disposed from the center of the separation space and communicating with the separation space .

The housing includes: a main body having a plurality of the suction ports formed on a lower surface thereof; And a head extending forward from the front end of the main body and having a discharge port formed at a front end and communicating with the inner space, wherein the inner space of the head may have a shape in which the sectional area decreases toward the front.

The cyclone cylinder has a cylinder body having an upper portion opened with the separation space and an upper end positioned on an outer surface of the housing, and the inlet port may be formed on a side surface of the cylinder body.

The cylinder body may be opened at a lower portion thereof, and the cyclone cylinder may further include a gate for opening and closing a lower portion of the cylinder body.

The cylinder body may have a separating portion having the same cross-sectional area and a recessed portion extending in a downward direction from the separating portion and having a sectional area decreasing toward the lower portion.

The inlet port may be located lower than the filter.

The cyclone cylinder further includes an arm bracket fixed to an outer surface of the housing and having a thread formed on an inner circumferential surface thereof. The cylinder body can be screwed to the arm-bracket through a thread formed on an upper outer circumferential surface.

The air suction unit may further include a nozzle installed at an upper portion of the suction port and capable of spraying the purging gas toward the suction port.

Wherein the cyclone cylinder comprises: a cylinder body having upper and lower portions opened with the separation space and an upper end positioned on an outer surface of the housing; A gate for opening and closing a lower portion of the cylinder body; And an elastic body for resiliently supporting the gate and returning the gate, which has been switched to the open state by the purging gas, to a closed state.

The cyclone cylinder may further include a pad provided on one side of the gate to seal the separation space from the outside in a closed state.

According to an embodiment of the present invention, an air suction method includes the steps of providing a filter on an outer surface of a housing having at least one suction port and an inner space into which air sucked through the suction port flows, and placing the filter outside the suction port A cyclone cylinder having a separation space and an inlet port eccentrically disposed from the center of the separation space and communicating with the separation space is disposed on an outer surface of the housing so that the cyclone cylinder is disposed outside the intake port, Is accommodated in the separation space, and the pressure of the internal space is lowered to introduce air into the internal space through the inlet port and the intake port.

Wherein the cyclone cylinder includes a cylinder body having a bottom opened and a gate for opening and closing a lower portion of the cylinder body, the method comprising the steps of: injecting a purging gas toward the intake port through a nozzle provided at an upper portion of the intake port, The foreign matter in the separation space can be discharged through the lower portion of the cylinder body.

It is possible to switch the gate to the closed state by stopping the operation of the nozzle, the elastic body elastically supporting the gate, and the pressure drop in the internal space.

According to an embodiment of the present invention, it is possible not only to prevent the filter member from being easily blocked due to foreign matter having a predetermined size or more, but also to easily remove fine dust from the filter member occluded by the fine dust, The replacement period of the filter member can be remarkably improved by greatly increasing the life of the filter member.

1 is a perspective view schematically showing an air suction unit according to an embodiment of the present invention.
Fig. 2 is a sectional view showing the air intake unit shown in Fig. 1. Fig.
3 is a cross-sectional view showing the cyclone cylinder shown in Fig.
Fig. 4 is a cross-sectional view showing the filter shown in Fig. 2. Fig.
5 is a cross-sectional view showing air flow inside the cyclone cylinder shown in Fig.
6 is a flowchart showing a method of sucking air using the air suction unit shown in Fig.
FIGS. 7 and 8 are views showing a process in which air is sucked by using the air suction unit shown in FIG. 1. FIG.
Fig. 9 is a schematic view showing a conventional air liquefaction separator.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. The embodiments are provided to explain the present invention to a person having ordinary skill in the art to which the present invention belongs. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a clearer description.

FIG. 1 is a perspective view schematically showing an air intake unit according to an embodiment of the present invention, and FIG. 2 is a sectional view showing the air intake unit shown in FIG. 1 and 2, the air intake unit includes a housing 10 and a filter 20, and a cyclone cylinder 30. [ The housing 10 has a main body 12 and a head 14, and has an internal space formed therein.

The main body 12 is cylindrical in shape with an empty interior, and horizontally arranged with the same cross-sectional area. The main body 12 is formed with a plurality of suction ports 16 formed on the bottom surface (or the bottom surface), and the suction ports 16 are disposed apart from each other. The outside air flows into the inner space of the housing 10 through the inlets 16.

The head 14 extends forward from the front end of the main body 12 and has a truncated conical shape in which the cross-sectional area of the inner space decreases toward the front. The head 14 has an outlet located at the front end and air introduced into the housing 10 can be discharged to the outside of the housing 10 through the head 14. [

3 is a cross-sectional view showing the cyclone cylinder shown in Fig. The cyclone cylinder 30 has an arm-bracket 32 and cylinder bodies 34, 36, and a gate 38. 2, the arm-bracket 32 is fixed to the outer surface of the main body 12 and has a ring-like shape with threads on the inner peripheral surface.

The cylinder bodies 34 and 36 have a separation space formed therein and have a separation part 34 and a rejection part 36. The separating part 34 is vertically disposed and has the same cross sectional area, and the rejecting part 36 has a truncated conical shape extending from the lower end of the separating part 34 toward the lower part and decreasing in cross section toward the lower part. The inlet port 35 is formed on the side surface of the separator 34 and is eccentrically disposed from the center of the cylinder bodies 34 and 36 (or the separation space) as shown in FIG. The outside air flows into the separation space through the inlet port 35 and the air in the separation space passes through the filter 20 and the intake port 16 to the inner space of the housing 10 and the foreign material stays in the separation space . In this way, air and foreign matter can be separated.

The gate 36 is open at the lower end of the gate 36 so that the lower end of the gate 36 can be opened (opened) or closed (closed) have. The gate 38 is connected to the lower end of the rejection 36 via the hinge H and the elastic body S is provided on the hinge H to elastically support the gate 38. [

Fig. 4 is a cross-sectional view showing the filter shown in Fig. 2. Fig. The filter 20 has a filter housing 22 and a filter member 24 and the filter housing 22 has an internal space for receiving the filter member 24. The filter housing 22 is fixed to the outer surface of the main body 12 and has a ventilation hole 23 formed in the side surface thereof. Outside air flows into the interior of the filter housing 22 through the vent hole 23 and can be filtered through the filter member 24.

On the other hand, the injection nozzle 42 is installed at the upper part of the suction port 16, and the purging gas can be sprayed (pulsed) to the suction port 16 at a pressure of 5 kg / cm 2. The injection nozzle 42 is connected to the branch pipe 52 and the main pipe 54 and the branch valve 53 and the main valve 55 are respectively installed in the branch pipe 52 and the main pipe 54. The controller 60 is electrically connected to the sensor P and the branch valve 53 provided in the internal space of the main body 12 and opens and closes the branch valve 53 according to the pressure value sensed through the sensor P .

5 is a cross-sectional view showing air flow inside the cyclone cylinder shown in Fig. As described above, since the inflow port 35 is arranged eccentrically, the outside air introduced through the inflow port 35 rotates and flows in the separation space located inside the separation portion 34.

FIG. 6 is a flowchart showing a method of sucking air using the air suction unit shown in FIG. 1, and FIGS. 7 and 8 are views showing a process in which air is sucked by using the air suction unit shown in FIG. 1 . Hereinafter, a method of sucking in air through FIGS. 6 to 8 will be described.

7, when the pressure formed in the inner space of the housing 10 is lowered through a separate compressor (not shown), the outside air flows through the inlet port 35 into the inner space of the cyclone cylinder 30 Respectively. At this time, the outside air contains foreign matter, and the outside air flows in a spiral shape, and the air and the fine dust move toward the filter 20, and the foreign matter having a certain size or larger moves down and is accumulated on the gate 38. At this time, the branch valve 53 must be kept closed and the main valve 55 may be kept closed.

Air and fine dust are filtered through the filter member 24 so that the air moves to the inner space of the housing 10 while the fine dust is adsorbed to the outer surface of the filter member 24. At this time, the sensor P senses the pressure formed in the inner space of the housing 10 and transmits a signal to the controller 60. The controller 60 transmits the signal to the inside of the housing 10 through the signal received from the sensor P The pressure formed in the space (or the pressure difference with the atmospheric pressure) can be measured (S10).

The controller 60 determines whether or not the pressure is out of the predetermined safety range, continuously measures the pressure when the pressure does not exceed the safety range, and stops the suction if the pressure is out of the safety range (S30). As described above, if the filter member 24 is continuously sucked in a clogged state due to fine dust or the like, the compressor may be damaged.

Thereafter, the controller 60 opens the branch valve 53 and the main valve 55, and supplies the purging gas to the injection nozzle 42. The injection nozzle 42 injects (or pulses) the purging gas toward the suction port 16 at a pressure of about 5 kg / cm2 (S40), and the fine dust accumulated on the outside of the filter member 24 through the purging gas It can be separated from the member 24 and moved to the lower portion of the rejection 36.

On the other hand, as the purging gas is injected, the pressure formed in the separation space of the cyclone cylinder 30 increases. Therefore, the gate 38, which is elastically supported by the elastic body S and closes the lower part of the rejection part 36, moves downward and is switched to the open state, The fine dust moving to the lower portion of the rejection port 36 can be discharged to the lower portion of the cyclone cylinder 30 (S50).

When the above process is completed, the controller 60 switches the branch valve 53 to the closed state and resumes the suction. As the pressure formed in the separation space of the cyclone cylinder 30 is lowered due to suction, the elastic body S to switch the gate 38 to the closed state.

According to the above description, it is possible to prevent the filter member 24 from being easily blocked due to foreign matter having a predetermined size or more, and to easily remove the fine dust from the filter member 24 blocked by the fine dust, By doing so, the life of the filter member 24 can be greatly increased, thereby significantly improving the replacement period of the filter member 24.

Although the present invention has been described in detail by way of preferred embodiments thereof, other forms of embodiment are possible. Therefore, the technical idea and scope of the claims set forth below are not limited to the preferred embodiments.

10: housing 12:
14: head 20: filter
22: filter housing 23: vent hole
24: Filter element 30: Cyclone cylinder
32: arm-bracket 34:
35: incoming port 36: rejected
38: gate 42: injection nozzle
52: branch pipe 53: branch valve
54: main piping 55: main valve
60:

Claims (14)

A housing having at least one inlet, into which the air sucked through the inlet is introduced;
A filter fixed to the outer surface of the housing outside the suction port to filter air moving toward the suction port;
A cyclone cylinder fixed to an outer surface of the housing to the outside of the suction port, the cyclone cylinder having the filter and an inlet port eccentrically disposed from the center; And
And a nozzle installed at an upper portion of the suction port and capable of spraying a purging gas toward the suction port,
In the cyclone cylinder,
A cylinder body having an upper portion and a lower portion opened and an upper end located on an outer surface of the housing;
A gate for opening and closing a lower portion of the cylinder body; And
And an elastic body for resiliently supporting the gate and returning the gate that has been switched to the open state by the purging gas to a closed state. The method according to claim 1,
The housing has an internal space into which air sucked through the suction port flows,
The cyclone cylinder having a separation space for receiving the filter,
And the inflow port is disposed eccentrically from the center of the separation space to communicate with the separation space. The method according to claim 1,
The housing includes:
A plurality of suction ports formed on a lower surface thereof; And
And a head extending forward from the front end of the main body and having a discharge port formed at a front end thereof and communicating with an inner space of the main body,
Wherein an inner space of the head is shaped such that its sectional area decreases toward the front. The method according to claim 1,
And the inflow port is formed on a side surface of the cylinder body. delete 5. The method of claim 4,
Wherein the cylinder body has a separating portion having the same cross-sectional area and a recessed portion extending in a downward direction from the separating portion and having a shape in which the sectional area decreases downward. 5. The method of claim 4,
Wherein the inlet port is located lower than the filter. 5. The method of claim 4,
In the cyclone cylinder,
And an arm bracket fixed to an outer surface of the housing and having a thread formed on an inner circumferential surface thereof,
And the cylinder body is screwed to the arm-bracket via a thread formed on the upper outer circumferential surface. delete delete The method according to claim 1,
Wherein the cyclone cylinder further comprises a pad provided on one side of the gate. A filter is provided on an outer surface of a housing having one or more suction holes and an inner space into which air sucked through the suction holes is introduced so that the filter is disposed outside the suction hole,
A cyclone cylinder having a separation space and an inlet port eccentrically disposed from the center of the separation space and communicating with the separation space is disposed on an outer surface of the housing, the cyclone cylinder is disposed outside the inlet, Is accommodated in the separation space,
A pressure of the internal space is lowered to allow air to flow into the internal space through the inlet port and the inlet port,
Wherein the cyclone cylinder includes a cylinder body having an open bottom and a gate for opening and closing a lower portion of the cylinder body,
And a purging gas is injected toward the suction port through a nozzle installed on the suction port to switch the gate to the open state and to discharge the foreign substances inside the separation space through the lower portion of the cylinder body. delete 13. The method of claim 12,
The nozzle is stopped and the gate is switched to the closed state by an elastic body for elastically supporting the gate and a pressure drop in the internal space.

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