KR101695656B1 - Air drier device for air compressor - Google Patents

Abstract

The present invention discloses an air dryer apparatus for an air compressor which reduces the moisture content of compressed air supplied from an air compressor and raises it to a predetermined temperature. A housing having a first hollow and a second hollow formed by a connecting passage between the inlet and the outlet; a housing having a first hollow and a second hollow formed therebetween, the housing having an inlet through which compressed air flows into the front end thereof, A cooling part installed in the first hollow and cooling the compressed air flowing into the first hollow through the inlet to reduce the moisture content; and a cooling part installed in the second hollow and flowing out from the first hollow through the connection passage And a heating unit for heating compressed air having a reduced content to a predetermined temperature and discharging the compressed air to the outflow port. The present invention can minimize the moisture content contained in the compressed air and efficiently raise the temperature.

Description

Technical Field [0001] The present invention relates to an air dryer for an air compressor,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an air dryer apparatus for air compressors, and more particularly, to an air dryer apparatus for air compressing apparatus that reduces moisture content contained in compressed air and increases the temperature of compressed air to a predetermined temperature.

Air compressors are used extensively in precision industrial fields such as semiconductor production plants, and in the life industry fields such as medical industry and automobile industry.

Such an air compressor includes reciprocating piston type, rotary piston type, and fluid type compressor according to the type of compressor, but compressed air produced by such air compressor includes moisture or water vapor, lubricant particles in the compressor, or foreign matters such as dust contained in the outside air .

If impurities such as moisture are contained in the compressed air, it can not be used immediately in various industrial devices such as precision industrial devices using compressed air.

Particularly, moisture causes corrosion, and the resultant green wood reacts with oil to generate chemical substances, shortening the lifespan of the device using compressed air, causing a serious temperature difference between summer and winter, causing various kinds of failures. Dust and the like are stuck between precision components such as valves of a device using compressed air in combination with moisture in the condensation process of compressed air, resulting in many problems such as failure of the device to operate.

Particularly in winter, clogging occurs due to condensation on piping connection part, and machine malfunction due to low temperature occurs. In addition, air drills and spray guns that use a large amount of air emit air through the grips, so that even when the gloves are worn in winter, the work is inconvenient due to the low temperature. In addition, the low temperature lowers the viscosity of the paint and acts as an obstacle to uniform spraying of the paint, which is a major cause of defects in winter coating.

For this reason, as shown in FIG. 1, an air dryer (not shown) for removing the moisture of the compressed air supplied to the machine 400 through the piping 300 is provided in the vicinity of the compression tank 200 in which compressed air is stored from the air compressor 100, Apparatus 500 is attached.

In a conventional air dryer apparatus, a plurality of air filter units for removing water, each having a drain trap coupled to a lower end thereof in a cylindrical shape, are connected to a transfer pipe to pass the compressed air generated from the air compressor, And the method of removing moisture contained therein is used.

Since the moisture absorption rate of the air filter is only about 40%, it is not possible to solve the problem that the lifetime is shortened due to malfunction of the pneumatic equipment due to moisture and the condensation phenomenon, and the drain trap must be replaced periodically, Since the loss of compressed air is large, it is not efficient, and since it is a comparatively expensive product, there is a problem that the burden of the purchase is increased.

Korean Patent Publication No. 10-2005-0029105 (published on Mar. 24, 2005) Korean Utility Model Registration No. 20-0457493 (announced on December 22, 2011) Korean Patent Publication No. 10-2008-0026366 (published on Mar. 25, 2008)

It is therefore an object of the present invention to provide an air dryer apparatus for an air compressor which reduces moisture content contained in compressed air supplied from an air compressor and raises the temperature of the compressed air to a predetermined temperature.

In order to achieve the above object, the air dryer apparatus for an air compressor according to the present invention comprises an inlet through which compressed air flows into a front end thereof, an outlet through which compressed air flows out at a rear end thereof, A cooling unit installed in the first hollow and cooling the compressed air flowing into the first hollow through the inlet to reduce the moisture content; And a heating unit installed in the second hollow to heat the compressed air having a reduced moisture content flowing out from the first hollow through the connection passage to a predetermined temperature and to discharge the compressed air to the outlet.

Wherein the cooling unit is provided between the inlet and the connection passage and includes a cooling rod provided with cooling means for providing a cold source according to a power source provided from the outside and a cooling rod provided in the cooling rod along the longitudinal direction of the cooling rod, And a cooling plate having a helical surface for allowing the inflow of compressed air to flow out to the connection passage through a spiral movement and transmitting the cold source transferred from the cooling rod to compressed air to be contacted, A heater provided between the passage and the outlet and having a heating means for providing a heat source according to a power source provided from the outside, and a heater provided in the heater along the longitudinal direction of the heater, And has a spiral surface to flow out to the outlet through a movement, And a heat sink for delivering the compressed air.

The housing includes a first separator that is separated from the first hollow so as to install the cooling rod and the cooling plate and a second separator that separates the heater and the heat sink from the second hollow, Wherein the first separator and the second separator are assembled with an assembly.

According to another aspect of the present invention, there is provided a condensate discharge passage for discharging the condensed water generated by condensation of moisture contained in compressed air to the outside of the first hollow.

The cooling unit may include a first temperature sensor disposed at the first hollow and measuring the temperature, and a second temperature sensor provided at the first hollow sensor for controlling the supply amount of the power supplied to the cooling unit, A second temperature sensor disposed at the second hollow and measuring a temperature of the first hollow, and a power source provided to the heating means by receiving the second hollow temperature from the second temperature sensor, And a second temperature regulator for regulating the supply amount of the heat medium.

The air dryer apparatus for an air compressor according to the present invention can reduce the moisture content contained in compressed air to eliminate the cause of failure of the machine using compressed air or shorten the life of the machine, So that the inconvenience caused by the low temperature can be eliminated.

In addition, since the present invention does not use a filter that absorbs moisture particles, the trouble of periodically replacing the filter is eliminated.

In addition, the housing is provided with a condensate discharge passage for discharging the condensed water to the outside, thereby effectively reducing the moisture content and facilitating assembly since the housing can be separated and the structure can be easily assembled inside.

1 is a schematic view for explaining a position where a conventional air dryer apparatus is installed.
2 is a block diagram illustrating an air dryer apparatus according to an embodiment of the present invention.
3 is a schematic view for explaining a position where the air dryer apparatus of FIG. 2 is installed.
4 and 5 are sectional views showing an air dryer apparatus according to an embodiment of the present invention.
Fig. 6 is a perspective view for explaining a structure to be mounted in the interior of Fig. 2;

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It will be possible. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprising" or "having ", and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

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

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an air dryer apparatus for an air compressor (hereinafter referred to as an air dryer apparatus) according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram illustrating an air dryer apparatus according to an embodiment of the present invention.

Referring to FIG. 2, an air dryer apparatus according to an embodiment of the present invention includes an inlet 12, an outlet 16, and a connecting passage 14. The air dryer 12 includes an inlet 12 and a connecting passage 14 A housing 10 in which a first hollow 13 is formed and in which a second hollow 15 is formed between the connecting passage 14 and the outlet 16 and a second hollow 15 formed in the first hollow 13 of the housing 10 A cooling unit installed in the second hollow 15 of the housing 10 for heating the compressed air flowing into the second hollow 15 to a predetermined temperature, And a heating unit.

The cooling unit includes a cooling rod 20 and a cooling plate 25 having a helical surface along the longitudinal direction of the cooling rod 20. The heating unit includes a heater 40, And a heat sink 45 provided so as to have a spiral surface along the longitudinal direction.

The cooling unit may include a first temperature sensor 52 for measuring the temperature inside the first hollow 13 and a second temperature sensor 52 connected to the first temperature sensor 52 for detecting the temperature of the first hollow 13, The heating unit may further include a second temperature sensor 62 for measuring a temperature inside the second hollow 15, a second temperature sensor 62 for controlling the temperature of the second hollow 15, And a second temperature controller 66 connected to the second hollow 15 to control the heater 40 according to the temperature of the second hollow 15.

Here, the housing 10 is formed with a condensed water discharge passage 30 at the lower side of the first hollow 13, which is capable of discharging condensed water generated by condensation of moisture contained in the compressed air to the outside.

Hereinafter, each component will be described in more detail with reference to the drawings.

FIG. 3 is a schematic view for explaining a position where the air dryer apparatus of FIG. 2 is installed, and FIGS. 4 and 5 are sectional views showing an air dryer apparatus according to an embodiment of the present invention.

2 to 5, an air dryer apparatus according to an embodiment of the present invention includes a housing 10.

3, the housing 10 includes an air compressor 100 that generates compressed air, a compression tank 200 that stores compressed air, and a compressor 200 that uses compressed air And is provided between the machine (300). For example, the housing 10 of the present invention may be installed in a pipe 400 connecting the compression tank 200 and the machine 300, and may be installed adjacent to the machine 300. This is to reduce the moisture content of the compressed air just before the compressed air is supplied to the machine 300 and to raise the temperature of the compressed air.

The housing 10 is provided with an inlet 12 through which the compressed air flows into the front end thereof and an outlet 14 through which the compressed air flows out into the rear end of the housing 10, The hollows 13 and 15 are formed. At this time, a connecting passage 14 connecting the first hollow 13 and the second hollow 15 is formed, and the inlet 12 and the outlet 16 may be connected to the pipe 400, respectively.

In addition, the housing 10 may be divided into three parts so that the components of the present invention may be installed inside the housing 10. More specifically, the housing 10 is divided into first to third parts by a first separating part 17 and a second separating part 19 as shown in Fig. FIG. 4 shows a cross section of the first part, and an assembly part 18 for coupling the first part and the second part is formed in the first part 17. 5, the second separator 19 is provided with an assembly 18 for coupling the second and third parts.

Fig. 6 is a perspective view for explaining a structure to be mounted in the interior of Fig. 2; FIG. 6 shows the structure of the cooling rod 20 and the cooling plate 25 mounted on the first hollow 13.

2 and 6, an air dryer apparatus according to an embodiment of the present invention includes a cooling rod 20.

The cooling rods 20 are installed in the first hollow 13 of the housing 10 and are provided between the inlet 12 of the housing 10 and the connecting passage 14, And a cooling means (22) for providing a cold source in accordance with the temperature.

The cooling rods 20 are installed at the side wall of the first hollow 13 adjacent to the inlet 12 and the other end is connected to the first hollow 13 adjacent to the connecting passage 14. [ And may be configured to be installed on the side wall.

In addition, the cooling means 22 may be formed in any form as long as it can provide a cold source according to a power source provided from the outside. For example, As shown in FIG.

2 and 6, an air dryer apparatus according to an embodiment of the present invention includes a cooling plate 25.

The cooling plate 25 is provided in the cooling rod 20 along the longitudinal direction of the cooling rod 20 so that the compressed air flowing into the inlet 12 of the housing 10 flows along the cooling plate 25 in a helical motion And has a spiral surface so as to flow out to the connection passage 14 through the cooling rods 20 and to transmit the cool air transferred from the cooling rods 20 to the compressed air to be contacted.

In order to prevent the compressed air from moving linearly in the interior of the first hollow 13, the cooling plate 25 may be variously designed and modified in accordance with the shape of the first hollow 13. For example, when the first hollow 13 is formed into a cylindrical structure, the cooling plate 25 may be formed to have a disk-shaped front face as shown in FIGS. Further, if the first hollow 13 is formed in a rectangular parallelepiped structure, the cooling plate 25 may be formed to have a rectangular plate-like structure on the front surface.

In other words, the cooling plate 25 is configured to have a structure in which the side surface can be brought into contact with the inner surface of the first hollow 13.

As described above, the compressed air flowing into the inlet 12 of the present invention can not move through the inside of the first hollow 13 through the linear motion, and the spiral movement of the cooling plate 25, 14).

Meanwhile, the cooling plate 25 should be made of a material having a high thermal conductivity so as to smoothly reduce the temperature of the compressed air in contact with the surface, which is supplied with a heat source from the cooling rod 20.

If necessary, the air dryer apparatus according to an embodiment of the present invention may further include a first temperature sensor 52 and a first temperature controller 56 as shown in FIG.

The first temperature sensor 52 is disposed in the first hollow 13 to measure the temperature of the first hollow 13. The first temperature controller 56 is connected to the first temperature sensor 52 and a commercial power source supplied from the outside and receives the temperature of the first hollow 13 from the first temperature sensor 52, And adjusts the supply amount of the power supplied to the cooling means (22) of the heat exchanger (20). To this end, the first temperature sensor 52 and the first temperature controller 56 are connected by a wire 54. The temperature regulator 56 is preferably installed on the outer surface of the housing 10 as shown in the figure.

In addition, the first temperature controller 56 may adjust the temperature inside the first hollow 13 so that the air dryer apparatus sufficiently lowers the temperature of the compressed air to minimize the amount of moisture contained in the compressed air. In other words, the first temperature controller 56 controls the temperature of the first hollow 13 to be lowered to a temperature at which condensation occurs, based on the internal temperature of the first hollow 13 transferred from the first temperature sensor 52 .

As described above, the compressed air introduced into the first hollow 13 is cooled while being in contact with the cooling rod 20 and the cooling plate 25, and the moisture contained in the compressed air is converted into condensed water by the condensation phenomenon . The condensed water thus generated is discharged to the outside through the condensed water discharge path (30) to reduce the moisture content contained in the compressed air.

The heater 40 and the heat sink 45 shown in FIG. 2 are formed in the same shape as the cooling rod 20 and the cooling plate 25 shown in FIG. 6, though they are not shown in the drawing.

Referring to FIGS. 2 and 5, the air dryer apparatus according to an embodiment of the present invention includes a heater 40.

The heater 40 is installed in the second hollow 15 of the housing 10 and is provided between the connecting passage 14 and the outlet 16 of the housing 10 and is provided therein with a power source A heat generating means 42 for providing a heat source is provided.

The heater 40 is installed at the side wall of the second hollow 15 adjacent to the connecting passage 14 and the other end of the heater 40 is connected to the side wall of the second hollow 15 adjacent to the outlet 16, As shown in FIG.

The heating unit 42 may be formed in any form as long as it can provide a heat source according to a power source provided from the outside. For example, the heating unit 42 may be provided inside the heater 40 along the longitudinal direction of the heater 40 One or more heating wires connected to each other. Here, the heating wire refers to a resistance wire for heating at a high temperature by utilizing a heating action by an electric current.

Referring to FIGS. 2 and 5, an air dryer apparatus according to an embodiment of the present invention includes a heat sink 45.

The heat dissipation plate 45 is provided in the heater 40 along the longitudinal direction of the heater 40 and the compressed air introduced into the connection passage 14 of the housing 10 flows through the heater 40, And has a spiral surface to allow the heat source to flow out to the compressed air.

In order to prevent the compressed air from moving linearly in the second hollow 51, the heat sink 45 may be designed to have various shapes according to the shape of the second hollow 15. For example, if the second hollow 15 is formed in a cylindrical structure, the heat sink 40 may be formed to have a disk-like structure on the front surface as shown in FIGS. When the second hollow 15 is formed in a rectangular parallelepiped structure, the heat sink 45 may be formed to have a rectangular plate-like structure on the front surface.

In other words, the heat sink 45 is configured to have a structure in which the side surface can be brought into contact with the inner surface of the second hollow 15.

The compressed air introduced into the connection passage 14 of the present invention can not move through the second hollow 15 due to the linear movement and is guided to the outlet 16 through the helical motion along the spiral surface of the heat sink 45 ).

The heat dissipating plate 45 may be made of a material having a high thermal conductivity so as to smoothly heat the compressed air in contact with the surface of the heat sink 45 by receiving a heat source from the heater 40. Specifically, the heat sink 45 is preferably made of a metal or an alloy having a thermal conductivity of 200 W / mK or more, preferably 200 to 500 W / mK for good heat conduction. More specifically, as the metal constituting the housing 10, aluminum, silver, copper, gold, carbon nanotubes, or alloys thereof may be used. The reason why the metal or alloy having a thermal conductivity exceeding 500 W / mK is not used is that the manufacturing cost is higher than the heat transfer efficiency.

If necessary, the air dryer apparatus according to an embodiment of the present invention may further include a second temperature sensor 62 and a second temperature controller 66 as shown in FIG.

The second temperature sensor 62 is disposed in the second hollow 15 to measure the temperature of the second hollow 15. The second temperature regulator 66 is connected to the second temperature sensor 62 and a commercial power source supplied from the outside and receives the temperature of the second hollow 15 from the second temperature sensor 62, 40 to regulate the supply amount of power supplied to the heat generating means 42. The second temperature controller 62 and the second temperature controller 66 are connected to the electric wire 64 and the second temperature controller 66 and the heating unit 42 are connected to the electric wire 64. [

The second temperature regulator 66 may be installed in the second hollow 15 of the housing 10, but it is preferable that the second temperature regulator 66 is installed on the outer surface of the housing 10 due to the characteristics of the electronic device, Do.

In addition, the second temperature regulator 66 can adjust the temperature inside the second hollow 15 so that the air dryer apparatus can sufficiently heat the compressed air to minimize the amount of moisture contained in the compressed air. In other words, the second temperature controller 66 controls the temperature of the second hollow 15 to be adjusted to 0 to 100 ° C based on the internal temperature of the second hollow 15, which is transmitted from the second temperature sensor 62 And adjust the supply amount of the power supplied to the heat generating means (42).

According to the configuration described above, when compressed air having a reduced moisture content in the first hollow 13 flows into the second hollow 15, the temperature of the compressed air is raised to a certain temperature.

2, 4, and 5, the air dryer apparatus according to an embodiment of the present invention may further include a thermal insulating material 70.

The heat insulating material 70 is provided between the surface of the housing 10 and the hollows 13 and 15. The temperature of the inside of the hollows 13 and 15 is influenced by the temperature of the place where the air dryer device is installed 15 and the outside of the hollows 13, 15 in order to minimize the number of the hollows 13, 15. As the insulating material 70, a ceramic insulating material or the like can be used.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims. It can be understood that it is possible.

10: housing 12: inlet
13: first hollow 14: connection passage
15: second hollow 16: outlet
17: first separator 18: cooking cavity
19: second separator 20: cooling rod
22: cooling means 25: cooling plate
30: Condensate discharge line 40: Heater
42: heat generating means 45: heat sink
52: first temperature sensor 54, 64:
56: first temperature regulator 62: second temperature sensor
66: second temperature regulator 70:

Claims (7)

A housing having a first hollow and a second hollow formed by a connecting passage between the inlet and the outlet, the housing having an inlet for introducing compressed air into the front end thereof and an outlet for discharging compressed air to the rear end thereof;
A cooling unit installed in the first hollow and cooling the compressed air flowing into the first hollow through the inlet to reduce moisture content; And
And a heating unit installed in the second hollow and heating the compressed air having a reduced moisture content flowing out from the first hollow through the connection passage to a predetermined temperature and discharging the compressed air to the outlet,
The housing is divided into first to third parts by a first separating part and a second separating part so that the structure can be easily assembled after the structure is mounted in the housing, 1 separation part, an assembly part for coupling the second part and the third part is formed in the second separation part,
Wherein the cooling unit is provided between the inlet and the connection passage and includes a cooling rod provided with cooling means for providing a cold source according to a power source provided from the outside and a cooling rod provided in the cooling rod along the longitudinal direction of the cooling rod, And a cooling plate having a helical surface for allowing the inflow of the compressed air to flow out to the connection passage through a spiral movement and for transmitting the cold source transferred from the cooling rod to compressed air to be contacted, . delete The method according to claim 1,
The heating unit includes:
A heater provided between the connection passage and the outlet and having a heating means for providing a heat source according to an external power source,
The heater is provided along the longitudinal direction of the heater and has a spiral surface to allow the compressed air flowing into the connection passage to flow out to the outlet through a helical motion, And a heat sink. delete The method according to claim 1,
Wherein the housing is formed with a condensed water discharge path for discharging condensed water generated by condensation of moisture contained in compressed air to the outside of the first hollow. The method according to claim 1,
The cooling unit includes:
A first temperature sensor disposed in the first hollow and measuring the temperature, and
Further comprising: a first temperature controller for receiving the first hollow temperature from the first temperature sensor and adjusting a supply amount of the power supplied to the cooling unit. The method of claim 3,
The heating unit includes:
A second temperature sensor disposed in the second hollow and measuring the temperature, and
Further comprising a second temperature controller for receiving the second hollow temperature from the second temperature sensor and adjusting a supply amount of the power supplied to the heating unit.

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