KR20040042055A - An apparatus for supply of compressed air - Google Patents

Abstract

PURPOSE: A compressed air supplying device is provided to cool and dehumidify air introduced into a compressor to prevent the damage of the compressor caused by heat of compressed air, and increase the compression efficiency considering the power of the compressor. CONSTITUTION: A compressed air supplying device includes a cooler(240) mounted to an air suction tube(10) for cooling air introduced into a compressor(210) below a room temperature, and condensing/removing the moisture in the suction air. The compressor is mounted in a soundproof chamber(249) for shielding the operation noise. An air flow tube(16) is connected to a storing tank(250) via the cooler, so that the compressed air transmitted to the storing tank is cooled by the cooler.

Description

Compressed air supply unit {An apparatus for supply of compressed air}

The present invention relates to a compressed air supply device, and more particularly, to improve the compression efficiency of the compressor by cooling and dehumidifying the air before being put into the compressor in advance, and to reduce the heat of compression by the compressed air. The present invention relates to a compressed air supply device having a new structure that can shield the compressor from the outside without cooling and can suppress the operation noise.

In general, the compressed air supply device is connected to various mechanical equipment or compressed air injection mechanisms operated by pneumatic pressure to supply compressed air to a predetermined pressure and supply the compressed air to a predetermined pressure. The device is shown.

As shown, the conventional compressed air supply device separates the compressor 110 for sucking and compressing external air, the cooler 120 for cooling the compressed air, and water and oil contained in the cooled compressed air. The water separator 140 and the oil separator 150, and the storage tank 130 for storing the compressed air is configured to supply the compressed air at a predetermined pressure to the connected equipment or apparatus.

By the way, since the conventional compressed air supply device configured as described above is configured to suck the outside air at room temperature and compress it by the compressor 110 as it is, the temperature of the sucked outside air is raised to a high temperature of 100 ℃ or more. Accordingly, since the inside of the compressor 110 is also heated to a high temperature by the compressed air, for the protection of the compressor 110, an air-cooling or water-cooling cooling means must be provided for cooling the heat. In addition, even if the compressor 110 is cooled, the interior of the compressor 110, which is in direct contact with the compressed air, is continuously exposed to heat, so that parts and oil are deformed and deteriorated, thereby increasing the life of the compressor 110. There was a problem that the reduction, the compression efficiency is lowered.

In addition, since a large amount of heat is discharged from the compressor 110 as described above, it is not possible to attach a soundproof cover or a case to the outside, and thus to install it in a state exposed to the outside, the operation noise is transmitted to the outside as it is. There was a problem that the damage to the workers and residents around the installation place is limited

Moreover, the gas has a characteristic that the volume increases with increasing temperature, and the conventional compressed air supply device compresses air at room temperature, so that the compression efficiency is relatively low, so that a relatively large power is used to compress the same amount of air. Was needed. As a result, an expensive compressor 110 having a large capacity is required, so that the manufacturing cost is high and the operating noise becomes more severe, and more energy is required for operation.

In addition, since the external air compressed by the compressor 110 contains a large amount of moisture, the water having a specific heat higher than that of the air is compressed and phase-changed, thereby releasing more heat than air to the outside. The power required for cooling is further increased, and the compression efficiency of the compressor 110 is further reduced.

The present invention is to solve the above problems, an object of the present invention is to cool and dehumidify the air flowing into the compressor to prevent damage to the compressor by the heat of the compressed air, and to increase the compression efficiency relative to the power of the compressor It does not need a separate cooling facility for cooling the compressor, the structure is simple, and a small capacity compressor can be installed to reduce the production cost, and the compressor is installed to be shielded from the outside to significantly reduce the operating noise emitted to the outside. It is to provide a compressed air supply device of a new structure that can be alleviated.

1 is a block diagram showing a conventional compressed air supply device

2 is a configuration diagram of an embodiment of a compressed air supply apparatus according to the present invention

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

201: main body case 210: compressor

230: water separator 232: oil separator

240: cooler 249: soundproof chamber

250: storage tank

According to the present invention, there is provided an air compressor 210 having an air suction pipe line 10 connected to one side thereof, and a storage tank 250 connected through the compressor 210 and the air transfer pipe line 16 to suck external air. In the compressed air supply device to be compressed and stored and supplied at a predetermined pressure, the air inlet pipe 10 is installed in the air suction pipe 10 to cool the air flowing into the compressor 210 to room temperature or less, and the moisture in the air sucked Provided is a compressed air supply further comprising a cooler (240) for condensation and removal.

According to another feature of the invention, the compressor 210 is provided inside the soundproof chamber 249 is provided with a compressed air supply device characterized in that the operating noise of the compressor 210 is shielded.

According to another feature of the present invention, the air transfer pipe 16 is installed to be connected to the storage tank 250 via the cooler 240, the compressed air to be transferred to the storage tank 250 by the cooler 240 Provided is a compressed air supply, which is adapted to be cooled.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram showing the configuration of one embodiment of a compressed air supply apparatus according to the present invention.

As shown, the compressed air supply apparatus of the present invention includes a main body case 201, a soundproof chamber 249 installed inside the main body case 201, and having a space formed therein, and inside the soundproof chamber 249. The air compressor 210 is installed in, the air inlet pipe 10 is connected to one side of the compressor 210, the outside air is sucked in, and the air is connected to the other side of the compressor 210, the compressed air is transported Is installed on the air transfer pipe line 16, the air intake pipe 10, the cooler 240 for cooling the air sucked into the compressor 210, and one side of the air transfer pipe path 16 is connected The other side of the storage tank 250 is provided with an air discharge pipe line 19 is connected, the oil separator 232 and the water separator installed on the air transfer pipe path 16 between the storage tank 250 and the compressor 210 It is composed of 230, the air suction pipe line 10 and the air transfer pipe line 16 of a predetermined number The probe is installed.

In the present embodiment, the soundproof chamber 249 shields the periphery of the compressor 210 from the outside and a sound absorbing material 249a made of a porous material is attached to the inner wall of the soundproof chamber 249 to transmit operating noise of the compressor 210 to the outside. Block it from becoming

The cooler 240 is a conventional refrigerant circulation type cooler, which has a main body 246 provided with a duct 245 communicating with the air suction line 10, and a duct 245 of the main body 246. An evaporator 241 installed therein to absorb heat of air sucked through the vaporization of the refrigerant, and a refrigerant compressor 210 connected through the evaporator 241 and the refrigerant circulation pipe 18 to compress the vaporized refrigerant. And a condenser 243 connected to the refrigerant compressor 210 and the refrigerant circulation pipe 18 to release heat to the outside of the building 15 through the condensation of the compressed refrigerant, and on one side of the condenser 243. And an expansion valve (not shown) installed in a refrigerant circulation pipe 18 between the condenser 243 and the refrigerant compressor 210, and a duct 245 on one side of the main body 246. Condensate outlet (not shown) is connected to discharge moisture in the condensed air while passing through).

Although not shown, the storage tank 250 is provided with a pressure sensor for detecting the pressure of the compressed air stored in the same way as a conventional compressed air supply device, the air compressor 210 of the detected storage tank 250 An operation controller is installed to stop the operation when the air pressure exceeds the set pressure.

The water separator 230 is provided with a water filter for filtering the water in the air passing through the air transfer pipe line 16 and a distillation valve for discharging the filtered water to the outside, and the oil separator 232 has an air transfer pipe line 16. An oil filter is provided to filter out lubricating oil of the compressor 210 included in the air passing therethrough, and an oil return pipe 17 connected to the compressor 210 is connected to one side thereof to filter the filtered lubricating oil to the compressor 210. It is configured to be resupply.

Referring to the operation of the compressed air supply device of the present invention configured as described above are as follows.

When the compressor 210 is operated, external air is sucked through the air suction pipe line 10 to be compressed to a predetermined pressure, and the compressed air is supplied to the storage tank 250 through the air transfer pipe line 16. The pressure sensor and the operation controller of the compressor 210 are stored in a state in which the set pressure is maintained, and supplied to the pneumatic equipment or the compressed air sprayer connected through the air discharge line 19 as necessary. At the same time, the cooler 240 is operated to cool the air sucked into the compressor 210 to a temperature below room temperature, preferably to a low temperature of about 10 ° C to about 10 ° C.

Accordingly, not only the temperature of the air sucked into the compressor 210 is lowered, but also due to the decrease in the volume of air due to the temperature decrease, the power of the compressor 210 required to compress the same amount of air on a mass basis is reduced. Since it requires relatively less power, the compression efficiency is increased, and the device can be configured using a smaller capacity, that is, a cheaper compressor 210, thereby reducing manufacturing costs.

In addition, since the air cooled by the cooler 240 is supplied to the compressor 210, not only the temperature of the air discharged from the compressor 210 is lowered by the lowered temperature, but also due to the decrease in the volume of the air due to the temperature drop. Since the air is compressed at a lower compression ratio, the temperature rise of the air due to the compression is relatively small, and the air temperature inside the compressor 210 is significantly lowered. Therefore, the internal temperature of the compressor 210 is lowered, so that a separate cooling device for cooling the compressor 210 is not required, thereby simplifying the structure of the apparatus, and deforming or altering each component and oil inside the compressor 210. There is an advantage that the life of the compressor 210 is increased to be prevented.

In addition, as described above, since the heat generated in the compressor 210 is reduced, a separate cooling means is not required, so that the structure of the facility can be simplified, and soundproof means such as the soundproof chamber 249 can be used. By installing around the compressor 210 to suppress the operation noise of the compressor 210 to be discharged to the outside, it is possible to provide a better environment to the surrounding workers and occupants, and a low vibration low noise that was not used by the heat of compression ( 210 can be used, there is an advantage that can be installed indoors.

Meanwhile, since the air flowing into the compressor 210 is cooled by the cooler 240 and at the same time, moisture in the air is condensed and dehumidified as the temperature decreases, so the air supplied to the compressor 210 has an external temperature and absolute humidity. It is in a significantly lower state than air. Therefore, since the moisture of the relatively high heat compared to the air containing a relatively large amount of water is removed by the cooler 240, the temperature rise of the air compressed by the compressor 210 is reduced to reduce the cooling of the compressor (210) There is no need, and the compression efficiency relative to the power of the compressor 210 is further enhanced.

The air compressed by the compressor 210 passes through the oil separator 232 and the water separator 230 while being transferred to the storage tank 250 through the air transfer pipe 16, and the oil separator 232. By the lubricating oil mixed while passing through the compressor 210 is filtered and supplied back to the compressor 210 through the oil return pipe 17, the water of the compressed air through the water separator 230 Is filtered.

Meanwhile, in the above-described embodiment, the air transfer pipe 16 is installed directly connected to the storage tank 250 from the compressor 210, and thus compressed air is dehumidified by the water separator 230. As another example, although not shown, the air transfer pipe 160 may be connected to the storage tank 250 via the main body 246 of the cooler 240. In this case, since the compressed air is dehumidified while being cooled by the cooler 240 again, the moisture content of the compressed air collected in the storage tank 250 can be lowered more effectively.

In addition, the dehumidifying means for lowering the water content of the compressed air in the present invention is not only the water separator 230 having the filter of the above-described embodiment, but particularly, in the case where the moisture content of the air is extremely low, etc. It may be configured by installing a conventional high performance dehumidifier having such.

As described above, according to the present invention, by installing a cooler 240 for cooling and dehumidifying the air sucked into the air suction pipe line 10 connected to the compressor 210 to supply the air in the low temperature and low humidity state to the compressor 210. By constitution, it is possible to prevent damage due to heat of the compressor 210, to increase the compression efficiency compared to the power of the compressor 210, the structure is simple because no separate cooling equipment for cooling the compressor 210, It is possible to reduce the manufacturing cost by installing a small capacity compressor, and to provide a compressed air supply device of a new structure that can be installed to shield the compressor from the outside to significantly reduce the operating noise emitted to the outside.

Claims (3)

An air compressor 210 having an air suction pipe line 10 connected to one side and a storage tank 250 connected through the compressor 210 and an air transfer pipe line 16 compress the external air sucked to a predetermined pressure. In the compressed air supply device for storing and supplying, a cooler installed in the air suction pipe 10 to cool the air flowing into the compressor 210 below room temperature and to condense and remove moisture in the sucked air. Compressed air supply device further comprises (240). The compressed air supply device according to claim 1, wherein the compressor (210) is installed inside the soundproof chamber (249) to shield operation noise of the compressor (210). According to claim 1 or claim 2, The air conveying pipe 16 is installed to be connected to the storage tank 250 via the cooler 240, the compressed air to be transferred to the storage tank 250, the cooler 240 Compressed air supply device characterized in that the cooling by.