JPH09256953A - Air compressor apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce high quality compressed air with a low dew point by improving cooling efficiency of compressed air in a cooling chamber and to improve cooling efficiency of a compressor by feeding cooling wind with a sufficiently low temperature into a compression chamber. SOLUTION: In an air compressor apparatus provided with a cooling chamber 24 and a compression chamber 25 in a vertically divided casing 21, a cooling pipe 26 for compressed air arranged in the cooling chamber 24 and a radiator 27 provided adjacent to the cooling pipe are wrapped by a cylindrical cooling cover 28, and a cooling fan 29 is arranged on one end of this cooling cover 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air compressor device in which a casing is divided into upper and lower parts and which has a cooling chamber and a compression chamber, and in particular, a ventilator and a heating humidifier can be easily attached in a hospital or the like. The present invention relates to a medical air compressor device.

[0002]

2. Description of the Related Art Conventionally, as a medical air compressor device, for example, one shown in FIG. 5 is known. This is provided with a cooling chamber 4 and a compression chamber 5 by partitioning the inside of a casing 1 having an operation panel 2 on the front surface 1a into upper and lower parts by a partition plate 3. In the cooling chamber 4, a primary cooling pipe 6 for cooling the compressed air, a radiator 17 adjacent to the primary cooling pipe 6 and a secondary cooling pipe 7 are arranged, and a space between the radiator 17 and the secondary cooling pipe 7 is provided. A storage tank 8 for compressed air is provided in. Further, a cooling fan 9 is provided in front of the primary cooling pipe 6 and the radiator 17, and a ventilation port 10 provided in the partition plate 3 is also provided.
A sirocco fan 11 for cooling the inside of the compression chamber 5 is disposed in the vicinity of.

On the other hand, on the bottom surface 1b of the casing 1, a compressor 12 for generating compressed air is supported via a vibration-proof rubber 13. The anti-vibration rubber 13 is intended to prevent the vibration of the compressor 12 from being transmitted through the casing 1 to a patient who is being treated by each device or bed attached to the compressor device.

The compressed air produced by the compressor 12 is sent to the cooling chamber 4, and then the primary cooling pipe 6 is first supplied.
When passing through the radiator 17, the air is cooled by the blow-out air a of the cooling fan 9, and is then sent to the storage tank 8 and then passes through the secondary cooling pipe 7. It is cooled by the outside air b flowing from 14. On the other hand, the sirocco fan 11 draws in the blow-out air a after the heat exchange with the primary cooling pipe 6 and the radiator 17 and the indoor air c of the cooling chamber 4, and then the partition plate 3
Cooling air d is sent into the compression chamber 5 from the ventilation port 10 provided in the compressor to cool the compressor 12. Compressor 12
After being cooled, the exhaust air e is discharged from the rear surface 1c of the casing 1 to the outside through the exhaust duct 16.

[0005]

By the way, this type of medical air compressor device is capable of stabilizing compressed air that has been sufficiently dried by being cooled for a long time with respect to an artificial respirator used for treatment of respiratory failure and the like. Must be supplied in the state. However, in the above conventional air compressor device, the primary cooling pipe 6 and the radiator 17
Are separated from each other, and the forced cooling by the cooling fan 9 is mainly only the compressed air flowing through the radiator 17,
Since the primary cooling pipe 6 is mainly cooled by the indoor air c flowing into the sirocco fan 11, the compressed air as a whole cannot be said to be sufficiently cooled.

Further, since the cooling air d sent into the compression chamber 5 by the sirocco fan 11 also flows into a wide space portion other than the compressor 12 inside the chamber, it cannot be said to be a sufficient method for cooling the compressor. . Further, the conventional medical air compressor device has a cooling fan 9 and a sirocco fan 1 when it is switched off after use.
Since the compressor 1 and the compressor 12 are stopped at once, the temperature inside the compression chamber 5 is rather high after the stop because the interior of the compression chamber 5 is closed, and it takes a long time to cool by natural heat dissipation. Therefore, the cooling of the compressor 12 cannot be said to be sufficient, and if the temperature is not sufficiently cooled and the temperature is high, the amount of the lubricating oil applied to the bearings of the compressor and the like is drastically reduced, which causes considerable wear and shortens the service life. I couldn't make it long.

Therefore, the present invention enhances the cooling efficiency of the primary cooling pipe and the radiator to generate high-quality compressed air with a low dew point, and also effectively sends cooling air to the compressor arranged in the compression chamber to cool the compressor. The purpose is to increase efficiency.

[0008]

That is, a medical compressor device according to the present invention is an air compressor device in which a casing is partitioned into upper and lower parts and which is provided with a cooling chamber and a compression chamber, and is disposed in the cooling chamber. A cooling pipe for compressed air and a radiator provided adjacent to the cooling pipe are surrounded by a cylindrical cooling cover, and a cooling fan is arranged at one end of the cooling cover.

Further, in the cooling fan, the air introduction port faces the opening end of the cooling cover, and the air delivery port communicates with a ventilation port provided in a partition between the cooling chamber and the compression chamber. And

Further, the cooling fan is operated by the off-delay timer for a certain period of time after being switched off.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an air compressor device according to the present invention will be described in detail below with reference to the accompanying drawings. The air compressor device shown in FIG. 1 and FIG.
As in the conventional case, the inside of the casing 21 having the operation panel 22 provided on the front surface 21a is vertically divided by the partition plate 23, and the cooling chamber 24 is provided at the upper portion and the compression chamber 25 is provided at the lower portion. ing.

In the cooling chamber 24, a cooling pipe 26 for cooling compressed air and a radiator 27 are arranged adjacent to each other in the front-rear direction of the casing 21. Also,
A cylindrical cooling cover 28 is arranged on the outer periphery of the cooling pipe 26 and the radiator 27, and the cooling pipe 28 surrounds the cooling pipe 26 and the radiator 27. Further, in this embodiment, a sirocco fan 29 is arranged near the rear end of the cooling cover 28. In this sirocco fan 29, the air introduction port 29a has a cooling cover 28.
Is arranged so as to face the open end of the air outlet 29b, and the air outlet 29b communicates with a ventilation port 30 formed in the partition plate 23. The cooling pipe 26 and the radiator 27 are also provided.
The compressed air cooled in (1) is temporarily stored in the storage tank 31 and then purified, and the pressure thereof is adjusted and supplied to the artificial respirator.

On the other hand, the compression chamber 25 has a double box structure as shown in FIGS.
An inner box 36 is disposed inside the. This inner box 36 has an opening 38 at the top as shown in FIG.
Box body 37 having a rectangular parallelepiped shape and the upper opening 3
8 and a lid 39 that closes the cover 8. Further, in the box body 37, a mounting plate 41 for mounting the compressor 40 is provided with four coil springs 42a, 42b, 42c and 4.
It is suspended by 2d. The mounting plate 41 is a rectangular plate member having a flange 43 on the periphery, and its four corners are supported by the coil springs 42a, 42b, 42c and 42d. Each coil spring 42a, 42b, 4
The other ends of 2c and 42d are the side wall surface 37a of the box body 37.
Is fixed to the compressor via a bracket 44, and the compressor 40 is suspended and supported by a pulling force. The spring constants of the coil springs 42a, 42b, 42c, 42d are determined in proportion to the loads applied to the four corners of the mounting plate 41. Where the load is large, the spring constant is large, and conversely, the load is small. Is set so that the spring constant is also small. In this way, the four coil springs 42a, 42
By setting the spring constants of b, 42c, and 42d as described above, the compressor 40 in a vibrating state can always be hung horizontally with good balance, thereby reducing imbalance and propagating vibration to other members. Hard to do.

The lid 39 has a double structure of an upper lid panel 39a and a lower lid panel 39b, and the ventilation passage 4 is provided between them.
5 are formed. A cylindrical body 46 that connects the ventilation passage 45 and the cooling chamber 24 is formed to project at the center of the upper lid panel 39a. The upper end of the cylindrical body 46 is the partition plate 2.
It is in contact with the inner peripheral edge of the ventilation port 30 opened in 3. Further, a flange 47 for closing the upper opening 38 of the box body 37 is formed on the peripheral portion of the lower lid panel 39b,
A pair of air guide ports 48 that communicate the air passage 45 and the box body 37 are provided on both sides of the lower lid panel 39b. An air outlet 50 communicating with the exhaust duct 49 is provided on the bottom wall surface 37b of the box body 37.

Further, the inner box 36 has a structure which can be pulled out in the lateral direction with respect to the casing 21, and as shown in FIG. 4, the lower side wall surface 37a of the box body 37 and the bottom surface 21b of the casing 21. It can be slid in the side surface direction of the casing 21 by the slide rail 51 disposed between and.

Therefore, in the air compressor device having such a structure, by operating the sirocco fan 29, the outside air is sucked from the air intake port 32 of the casing front surface 21a. This outside air wind f rises through the air duct 33 and is guided into the cooling chamber 24. Most of the introduced air g is introduced into the cover from the opening end of the cooling cover 28 by the suction effect of the sirocco fan 29, and heat-exchanges with the compressed air while passing through the gap between the radiator 27 and the cooling pipe 26 as it is. . The cooling air after the heat exchange is guided into the air introduction port 29a of the sirocco fan 29, and is sent as the cooling air h from the air delivery port 29b into the inner box 36 of the compression chamber 25 through the ventilation port 30 of the partition plate 23. Be done.

As described above, in the above-described embodiment, the outside air wind f forcedly sucked by the sirocco fan 29 is used as the cooling cover 2.
Since it is configured to conduct heat exchange with the cooling pipe 26 and the radiator 27 by being guided only to the space surrounded by 8,
The cooling cover 28 intensively cools, so that the cooling efficiency is greatly increased as compared with the conventional device. Conventionally,
Although the secondary cooling was performed, the primary cooling efficiency is greatly increased by the present invention, and the secondary cooling is no longer required.
In particular, in this embodiment, the air inlet 29a of the sirocco fan 29 faces one end of the cooling cover 28, and the air outlet 29b communicates with the ventilation port 30 of the partition plate 23. Will receive little.

Further, in this embodiment, the sirocco fan 29 is used.
Since the cooling air h is guided to the ventilation passage 45 through the cylindrical body 46 provided on the upper lid panel 39a of the lid 39, and is further blown into the box body 37 from the air guide ports 48 provided on both sides of the lower lid panel 39b. , The cooling air h is the box body 37
Since the flow is guided only to the inside, and the flow matches the built-in cooling structure of the two-headed compressor 40 of this embodiment, the cooling efficiency of the compressor 40 is further increased, and the compression performance of the compressor 40 is maintained for a long period of time. There is an effect that it can be maintained for a long time. The cooling air i that has exchanged heat with the compressor 40 is guided into the exhaust duct 49 from the air outlet 50 provided in the bottom wall surface 37b of the box body 37 and is discharged to the outside from the rear surface 21c of the casing 21.

Further, in the present embodiment, an off-delay timer device for cooling the compressor 40 by operating the sirocco fan 29 for a certain period of time even after the switch is turned off after use is also provided. Thus, even after the compressor is stopped, the sirocco fan 29 is operated for a certain period of time to sufficiently cool the compressor 40, thereby maintaining the life of the compressor for an even longer period of time.

Although the above embodiment has been described as a medical air compressor device, the present invention is not limited to medical devices.

[0021]

As described above, according to the air compressor device of the present invention, the cooling pipe and the radiator for the compressed air arranged in the cooling chamber are surrounded by the cylindrical cooling cover, and one end of this cooling cover is provided. Since a cooling fan is installed in the section, the outside air forcedly sucked by the cooling fan will be guided into the space surrounded by the cooling cover, and the efficiency of heat exchange with the compressed air flowing through the cooling pipe and radiator will be high. This has the effect of increasing the temperature, and eliminates the conventional secondary cooling. Also, the cooling air after heat exchange by the cooling fan is sent to the compression chamber to perform cooling in accordance with the cooling structure of the compressor, so that the cooling efficiency of the compressor is high and the compression is performed by one cooling fan. There is an effect that both the air and the compressor can be cooled.

In particular, the air inlet of the cooling fan is opposed to one end of the cooling cover, and the air outlet is communicated with the ventilation port of the partition plate so that a specific portion is provided in accordance with the cooling structure of the compressor arranged in the compression chamber. Sending cooling air,
In addition, even after the compressor is stopped after use, the cooling fan is operated for a certain period of time by the off-delay timer, and the cooling air is sent to the compression chamber to cool the compressor, so it is possible to perform early cooling without raising the temperature of the compressor. Has the effect of further increasing the life of the.

[Brief description of drawings]

FIG. 1 is a side sectional view of an air compressor device according to the present invention.

FIG. 2 is a front view showing a cooling chamber of the air compressor device.

FIG. 3 is an exploded perspective view showing an inner box in the compression chamber.

FIG. 4 is an enlarged view of a slide rail.

FIG. 5 is a side sectional view of a conventional air compressor device.

[Explanation of symbols]

 21 Casing 23 Partition Plate 24 Cooling Chamber 25 Compression Chamber 26 Cooling Pipe 27 Radiator 28 Cooling Cover 29 Sirocco Fan (Cooling Fan) 29a Air Inlet 29b Air Outlet 30 Vent

Claims (3)

[Claims] 1. An air compressor device comprising a cooling chamber and a compression chamber, the interior of which is divided into upper and lower parts, and a cooling pipe for compressed air arranged in the cooling chamber and a radiator provided adjacent to the cooling pipe. An air compressor device characterized in that and are surrounded by a cylindrical cooling cover, and a cooling fan is provided at one end of the cooling cover. 2. The cooling fan has an air inlet facing the opening end of the cooling cover, and an air outlet communicating with a ventilation opening provided in a partition between the cooling chamber and the compression chamber. The air compressor device according to claim 1. 3. The air compressor device according to claim 1, wherein the cooling fan operates for a certain period of time after being switched off by an off-delay timer.