KR20090008633U - Water cooling type air compressor having air injection device - Google Patents

Abstract

The present invention relates to a water-cooled air compressor equipped with an air injector, and more particularly, an air compressor that sucks air into the inside, compresses it to high pressure, and then exhausts the compressed air to the outside, and blocks noise generated by the air compressor. In order to provide a soundproof member on the inner side, the housing for hermetically receiving the air compressor, a plurality of dust-proof made of an elastic material connected to the air compressor and the inner side of the housing for contacting the air compressor contained in the housing to the housing A cooler for cooling the coolant circulated along the cooling line installed in a form surrounding the outer surface of the spring, the air compressor, a storage tank for storing the coolant cooled by the cooler, and the coolant stored in the storage tank circulates through the cooling line. Cooling means and balls having pumps for effluent cooling water, The present invention relates to a water-cooled air compressor having an air injector including an air injector for controlling the injection time of the compressed air exhausted by the air compressor to spray the object. According to the present invention, due to the frictional heat and compression heat generated in the process of suctioning and compressing air using a small air compressor, the high temperature state of the compressor is cooled by circulating the cooling water compared to the conventional air cooling type. This prevents a breakdown and reduces the maintenance costs.

Water-cooled, air, compressor, circulation, soundproof, dustproof, airborne, spray

Description

Water cooling type air compressor having air injection device

The present invention relates to a water-cooled air compressor, in particular, to suppress the noise and vibration generated during the operation of the air compressor, and at the same time to effectively cool the heat generated by the air compressor by circulating the cooling water, and to effectively control the compressed air by the compressor It relates to a water-cooled air compressor having a small air injector for spraying.

An air compressor is a device that increases the pressure by mechanically reducing the volume of gas, and is mainly used for the compression of air, and also for the compression of natural gas, oxygen, nitrogen and other gases.

Generally, air compressors are classified into a reciprocating type compressor, a centrifugal type compressor, and an axial flow type compressor according to a compression method. Here, the reciprocating compressor is usually in the form of a reciprocating piston. In the industrial field, a reciprocating compressor is widely used, and the suction and compression of air are repeatedly performed by the reciprocating motion of the piston located in the cylinder of the compressor main body. . Here, the air is introduced into the cylinder through the suction filter by the suction stroke of the piston, and then compressed by reducing the volume by the compression stroke of the piston. When the pressure of the air is more than a predetermined value, the exhaust valve is opened and discharged through the discharge line. As such, the reciprocating compressor is useful for supplying a small amount of air at a relatively high pressure.

On the other hand, the reciprocating air compressor, but is applicable widely in a low pressure of about 1Kgf / cm ² or less to about 1,000Kgf / cm ² or more high-pressure, and a pulsation caused by compressing the air by the reciprocating motion of the piston, compressed air There is a disadvantage in that the cost required for maintenance thereof is increased due to breakage of various valves and the like caused by contact friction between the piston and the inner wall of the cylinder due to high compression heat. In addition to these drawbacks, the reciprocating compressor used in recent years is an oilless compressor that does not require lubrication inside the cylinder to supply clean air, but due to its structure, it is inevitable that noise and vibration of about 60 to 70 dB are inevitably operated. There is a problem that is not suitable for indoor use, especially in hospitals, laboratories, offices, beauty salons and academic spaces. As such vibrations and noises are recognized as environmental pollution problems, there is an urgent need for technology to solve them.

To solve this problem, an oilless reciprocating air compressor has been proposed to prevent the occurrence of noise and vibration.

For example, Korean Patent Publication No. 10-0481712 (registered on March 29, 2005) discloses a "compressed air supply device." The present invention relates to a compressed air supply device which allows the compressor to be installed in a sealed state with a simple structure and at the same time blocks the noise generated at the same time more completely.

However, in order to block the noise generated during operation of the compressor, the compressor is sealed and installed in a predetermined case. However, when the compressor operates in the sealed space, the internal temperature of the case increases due to the heat generated by the compressor, causing the compressor to malfunction. There is a problem. The fan was installed to circulate air into the case to lower the temperature inside the case. However, when the case outside temperature is high, there is a problem that the cooling effect is inadequate, and the dustproof device for reducing the vibration generated in the compressor also has a problem that the efficiency is low. In addition, the exhaust air compressed by the compressor is not effective in controlling it has a problem that the utilization in various fields is poor.

An object of the present invention devised to solve the above problems is, by cooling the compressor by circulating the cooling water, water-cooled air with an air injector which can prevent the failure of the compressor due to frictional heat and compression heat generated during operation of the compressor To provide a compressor.

In addition, an object of the present invention is to provide a water-cooled air compressor equipped with an air injector that can block the vibration and noise generated in the compressor to prevent a decrease in working efficiency in the room.

In addition, an object of the present invention is to provide a water-cooled air compressor having an air injector capable of controlling the compressed air to be exhausted to effectively inject to the object.

The present invention devised to achieve the above object is, the air compressor that sucks the air into the inside and compresses to high pressure and then exhausts the compressed air to the outside, and the soundproof on the inner surface to block the noise generated in the air compressor A plurality of members including a housing, the housing for hermetically receiving the air compressor, and a plurality of elastic materials connected to the air compressor and an inner side surface of the housing to contact the air compressor housed in the housing with the housing. A dustproof spring, a cooler for cooling the coolant circulating along the cooling line installed to surround the outer surface of the air compressor, a storage tank for storing the coolant cooled by the cooler, and the coolant stored in the storage tank. Establish a pump to drain the coolant that makes it possible to circulate through the line And cooling means to control the injection time of the compressed air that is discharged by the compressor of an air-jet apparatus comprising an air injection device for injecting to avoid the object.

The present invention uses a small air compressor to inhale air and compresses it, so that the high temperature state of the compressor is cooled by circulating and cooling the compressor at high temperature due to the frictional heat and the heat of compression. This can reduce the maintenance costs.

In addition, the present invention has an effect that is suitable for use in the room by installing a predetermined soundproofing and dustproof device with excellent efficiency to block the noise and vibration generated when the compressor operates.

In addition, the present invention has an effect suitable for the use of skin care and medical use by controlling the compressed air to be exhausted and sprayed on the object.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of a water-cooled air compressor equipped with an air injector according to the present invention.

1 is a cross-sectional view showing a water-cooled air compressor with an air injector of the present invention, Figure 2 is a perspective view showing an air compressor in a water-cooled air compressor with an air injector of the present invention, Figure 3 is 4 is a plan view showing an air compressor in a water-cooled air compressor equipped with an air injector, and FIG. 4 is a longitudinal sectional view showing an air compressor in a water-cooled air compressor equipped with an air injector of the present invention, and FIG. 5 is an air of the present invention. The cross section which shows the air compressor in the water-cooled air compressor provided with the injector.

1 to 5, a preferred embodiment of a water-cooled air compressor equipped with an air injector according to the present invention includes an air compressor 100 and a housing 200 for hermetically receiving the air compressor 100. ), A plurality of anti-vibration springs 300 made of an elastic material connected to the inner surface of the air compressor 100 and the housing 200, a cooler 410 for cooling the coolant, and a cooled coolant. It includes a storage tank 420, a cooling means 400 having a pump 430 for discharging the cooling water and an air injector 500 for spraying to the object.

Hereinafter, the configuration and operation of the preferred embodiment of the water-cooled air compressor equipped with the present invention air injector configured as described above will be described in more detail.

First, the air compressor 100 is a compact compressor that can be used indoors, and is an air-cooled compressor of about 1 horsepower. And the air compressor 100 is a predetermined lubricating oil is used to prevent abrasion due to friction between the piston 122 and the inner wall of the cylinder 121 reciprocating in the cylinder 121, the air compressor of the present invention ( 100) uses an oilless compressor that does not require lubricating oil to produce air free of lubrication oil. Here, the air compressor 100 is used in a treatment room, a treatment room, a laboratory, an academic room, an office space, a home, a skin beauty room, and the like of a hospital.

The housing 200 in which the compressor is accommodated has a substantially hexahedral shape, and the air compressor 100 is sealed in the housing 200. Here, the housing 200 is preferably made of metal or wood in order to protect the external impact. In addition, the soundproof member 210 is installed on the inner surface of the housing 200 to effectively block the noise generated by the air compressor 100.

The anti-vibration spring 300 is installed in a structure that supports the air compressor 100 to float in the air, preferably, four on the upper surface corner, four on the lower surface corner. Here, since the air compressor 100 is supported by the anti-vibration spring 300 in a non-contact state with the housing 200, the vibration generated by the air compressor 100 may be effectively attenuated. This is because the anti-vibration spring 300 is made of an elastic material to absorb the vibration of the air compressor (100).

The cooling means 400 cools the heat generated by the air compressor 100 while the coolant (water) circulates inside the cooling line 440 installed to surround the outer surface of the air compressor 100. Let's do it. The cooling line 440 is preferably made of a copper material having excellent ductility and high thermal conductivity. In addition, the cooling line 440 surrounds a large portion of heat generated in the air compressor 100, that is, the cylinder head 150, the outer wall of the cylinder 121, and the outer wall of the core of the driving motor (not shown) to allow the cooling water to circulate. Further improve the cooling efficiency.

When the coolant circulating along the cooling line 440 absorbs the heat of the air compressor 100, the temperature rises. A cooler 410 is installed to cool the coolant having the increased temperature. In addition, when the coolant cooled by the cooler 410 is stored in the storage tank 420, by the operation of the pump 430 to the storage tank 420 to circulate the coolant along the cooling line 440. Drain the stored coolant. When the coolant is to be replenished from the outside, the coolant is replenished in the storage tank 420. The pump 430 has a small noise pump 430 is used.

On the other hand, one side surface of the housing 200, the first through-air 220 for sucking the outside air into the air compressor 100, and the air is sucked into the inside of the air compressor 100 to exhaust the compressed air A second through hole 230 for forming is formed. The first through hole 220 is provided with a silencer 240 to block the intake noise.

The air compressor 100 may include a suction unit 110 for introducing air outside the housing 200 into the air compressor 100, and a cylinder for receiving air sucked by the suction unit 110 ( 121, a compression unit 120 having a piston 122 which is located inside the cylinder 121 and moves up and down to compress air received in the cylinder 121, and the cooling line 440. It is connected to have a cooling water tank 130 and the exhaust pipe 141 inserted into the second through hole 230 and installed in a form surrounding the outer surface of the compression unit 120 and is compressed by the compression unit 120 And an exhaust unit 140 for exhausting the compressed air.

In addition, the exhaust pipe 141 is twisted in contact with the cooling line 440 to cool the compressed air exhausted along the exhaust pipe 141. In addition, a cylinder head 150 is formed on the upper portion of the air compressor 100 to cover and protect the cylinder 121. The cylinder head 150 is formed by the up and down reciprocation of the piston 122. The highest heat is generated in 100). The inner upper end of the cylinder 121 generates a higher heat of compression due to the compression of the piston 122 than a heat of friction due to the friction between the cylinder 121 and the piston 122. Here, the cooling water moves along the cooling line 440 and is introduced into the cooling water tank 130 through the inlet 131 formed at one side of the cooling water tank 130. In addition, the main body of the air compressor 100 linked thereto, the cylinder 121, the piston 122, the valve mount 152, the motor mount 153, and the intake and exhaust mount 151 are simultaneously cooled (heat exchanged), and the cooling water tank Flowing out through the outlet 132 formed on the other side of the 130, the leaked cooling water is moved along the cooling line 440 connected to the cooling water tank 130 is introduced into the cooler 410. At this time, the coolant is circulated by the small pump 430. As a result, the cooling water tank 130 connected to the cooling line 440 cools the compressed air exhausted by the exhaust pipe 141 while cooling the cylinder head 150 where high heat is generated in the main body of the air compressor 100. Let's do it.

In addition, the cooling water tank 130 has a structure in direct contact with the air compressor 100, to maximize the efficiency of cooling the air compressor 100, in particular the valve mount 152 and the motor mount 153. Can be.

Meanwhile, the outer wall 155 of the cooling water tank 130 surrounds the outer wall 154 of the cylinder 120 to form a receiving space therein to receive the cooling water. This structure can cool the entire cylinder head 150. In addition, the conventional air-cooled air compressor can be easily and easily detachable. In an operating condition in which water cooling is not required, only the cooling water tank 130 may be removed, and by switching off the valve mount 152 of the cylinder head 150 located at the upper end of the cylinder 120, the air cooling may be switched.

The air injector 500 includes an injection nozzle 510 for injecting compressed air exhausted along the exhaust pipe 141 to an object, a pressure and an injection amount of air injected by the injection nozzle 510, and A solenoid valve 520 for maintaining a constant injection time and a control unit 530 for controlling the solenoid valve 520 are provided. In addition, the exhaust pipe 141 is further provided with a fluid receiving portion 540 to enable the injection of the airflow through the injection nozzle 510. Here, the fluid accommodated in the fluid receiving part 540 is preferably distilled water or lotion used for scalp or skin beauty. The air injector 500 can appropriately control the pressure, the injection amount, and the injection time of the air injected into the object, and are mainly suitable for the use of skin care and dental procedures.

For example, when spraying on the scalp according to the injection amount injected per second by appropriately controlling the control unit 530, it is sprayed with a pulse width of about 3Hz per second. And when spraying to the skin, it is sprayed with a pulse width of about 5 to 10Hz per second, which is effective for skin peeling, massage, peeling.

The present invention will be described in more detail with reference to the following experimental examples. However, experimental examples are intended to illustrate the present invention, but are not limited to these.

Experimental Example 1

In order to investigate the cooling effect of the water-cooled air compressor of the present invention, a cooling experiment was performed to compare the water-cooled air compressor with the conventional air-cooled air compressor. The experimental compressor sealed a small 0.5 horsepower oilless compressor and the laboratory room temperature was 17 ° C.

Table 1

This invention Conventional (air cooling) Driving time (minutes) Head temperature (℃) Discharge Pressure (K) Head temperature (℃) Discharge Pressure (K) 10 42 7.8 45 7.8 20 50 7.7 60 7.5 30 52.4 7.6 80 7 40 53.7 7.6 90 6.5 50 54.5 7.5 60 55.1 7.5 70 55.5 7.5 80 55.9 7.5 90 56 7.5 100 56.8 7.5 110 56.7 7.5 120 56.8 7.5

As shown in Table 1, the water-cooled air compressor of the present invention was maintained at a constant discharge pressure irrespective of the operating time, and the cooling effect was excellent. On the other hand, the conventional air-cooled air compressor has a problem that the internal parts are damaged due to overheating of the head when the operation time exceeds about 40 minutes.

In addition to the results of the above-described experimental example, the conventional air-cooled oilless air compressor has a disadvantage of causing noise of about 60 to 70dB to operate in a closed or semi-sealed to solve this problem, but this is due to the life of the air compressor deterioration This shortcoming occurred. In addition, by operating without injecting lubricating oil into the cylinder to obtain unpolluted compressed air, high heat friction heat is generated due to friction between the piston and the inner wall of the cylinder, and high heat heat of compression is generated by the compression inside the cylinder. It was. Both of these heats generated the failure of the air-cooled air compressor.

Therefore, summarizing the shortcomings of the conventional air-cooled air compressor, as shown in [Table 1], first, the discharge pressure of about 8K decreases to about 6K due to the overheating of the compressor, thereby reducing the compression efficiency. Second, expensive cylinders and pistons wear out, leading to increased maintenance costs and significant losses due to process interruptions. Third, the air intake and exhaust valves deteriorate and noise is increased.

When replacing the conventional air-cooled air compressor with the water-cooled air compressor of the present invention, the noise of about 60 to 70 dB, which causes human stress, is reduced to about 30 to 40 dB, and the discharge pressure is maintained by preventing overheating. Can be maintained. In addition, the wear of the cylinder and the piston is significantly lowered, and the valve does not deteriorate, thereby reducing noise. This can extend the life of the air compressor by more than two times. In addition, even if the water-cooled air compressor of the present invention is sealed, the compressor does not deteriorate and can be operated with no noise.

6 is a longitudinal sectional view showing another embodiment of an air compressor in a water-cooled air compressor equipped with an air injector according to the present invention, and the same parts as in FIG. 4 showing the above-described embodiment will be described with the same reference numerals. .

Referring to FIG. 6, the cooling water tank 130 has maximized the volume of the outer wall of the cylinder 121 to maximize heat exchange efficiency, and has a structure that is continuously bent to increase the cooling performance.

The present invention has been described based on the preferred embodiments, but the technical idea of the present invention is not limited thereto, and variations or modifications can be made within the scope of the claims, and those of ordinary skill in the art to which the present invention belongs. It will be apparent to those skilled in the art that such modifications and variations fall within the scope of the appended claims.

1 is a cross-sectional view showing a water-cooled air compressor equipped with an air injector of the present invention.

2 is a perspective view showing an air compressor in a water-cooled air compressor equipped with an air injector of the present invention.

Figure 3 is a plan view showing an air compressor in a water-cooled air compressor equipped with an air injector of the present invention.

Figure 4 is a longitudinal sectional view showing an air compressor in a water-cooled air compressor equipped with an air injector of the present invention.

Figure 5 is a cross-sectional view showing an air compressor in a water-cooled air compressor equipped with an air injector of the present invention.

Figure 6 is a longitudinal sectional view showing another embodiment of the air compressor in a water-cooled air compressor equipped with an air injector of the present invention.

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

100: air compressor 110: suction unit

120: compression section 121: cylinder

122: piston 130: cooling water tank

140: exhaust portion 141: exhaust pipe

200: housing 210: soundproof member

220: first via 230: second via

240: silencer 300: dustproof spring

400: cooling means 410: cooler

420: storage tank 430: pump

440: cooling line 500: air injector

510: injection nozzle 520: solenoid valve

530: control unit 540: fluid receiving unit

Claims (7)

An air compressor that sucks air into the inside, compresses the air to high pressure, and exhausts the compressed air to the outside; A housing having a soundproof member on an inner surface to block noise generated by the air compressor, for housing the air compressor in a sealable manner; A plurality of anti-vibration springs made of an elastic material connected to the air compressor and an inner surface of the housing to contact the air compressor housed in the housing with the housing; A cooler for cooling the coolant circulating along the cooling line installed to surround the outer surface of the air compressor, a storage tank for storing the coolant cooled by the cooler, and the coolant stored in the storage tank through the cooling line. Cooling means including a pump for circulating the cooling water to circulate; And The water-cooled air compressor having an air injector comprising an air injector for controlling the injection time of the compressed air exhausted by the air compressor to inject to the object. The method of claim 1, A first through hole for suctioning external air into the air compressor in one side of the housing; And And a second through hole for evacuating the compressed air sucked into the air compressor. The method of claim 2, The first through-hole water-cooled air compressor with an air injector, characterized in that the silencer is installed to block the intake noise. The method according to any one of claims 1 to 3, The air compressor, A suction unit for introducing external air sucked through the first through hole formed in one side of the housing into the air compressor; A compression unit having a cylinder for receiving the air sucked by the suction unit, and a piston located inside the cylinder and vertically reciprocating to compress the air contained in the cylinder; A cooling water tank connected to the cooling line and installed to surround an outer surface of the compression unit; And And an exhaust unit having an exhaust pipe inserted into the second through hole and exhausting the air compressed by the compression unit. The method of claim 4, wherein The water-cooled air compressor with an air injector, characterized in that the exhaust pipe is installed in contact with the cooling line in the form of twist to cool the compressed air exhausted along the exhaust pipe. The method of claim 1, The air injector, An injection nozzle for injecting compressed air exhausted along the exhaust pipe to the object; A solenoid valve for maintaining a constant pressure, injection amount, and injection time of the air injected by the injection nozzle; Water-cooled air compressor having an air injector including a control unit for controlling the solenoid valve. The method of claim 6, It is installed in the exhaust pipe and further comprises a fluid receiving portion to enable the injection of the air through the injection nozzle, the fluid contained in the fluid receiving portion is water-cooled air equipped with an air injector, characterized in that the distilled water or toilet water compressor.

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