JPH057720A - Air regeneration system - Google Patents

Abstract

PURPOSE:To provide an air regeneration apparatus which can carry out pump cooling with small power and whose noise is lowered remarkably. CONSTITUTION:In an air regeneration having a pressure swinging-type gas separation apparatus, an air blower and a vacuum pump are installed uniaxially in both sides of a motor 29 which is installed under a partitioning plate 21 of an air regeneration system main body 20 while its axis is set horizontally, cooling fans 37 are installed in both ends of the axis to give a pump unit 30, both end parts of the pump unit 30 are hung and supported by vibration isolating rubber plates 28 which are held toy the partitioning plate 21, and a cooling wind ventilating route of a pump chamber 27, to which cooling wind sucked by the cooling fans 37 is blown through a discharging duct 35 in the bottom, is formed by the vibration insulating rubber plates 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air regenerator provided with noise and cooling measures.

[0002]

2. Description of the Related Art Due to the severe demand for noise reduction in recent years, even if an air regenerator is installed outdoors, a high degree of soundproofing is required.

Therefore, in the air regenerator equipped with the pressure swing type gas separation device, conventionally, noise and cooling measures as shown in FIG. 5 have been taken. That is, the inside of the air regenerator main body 1 is divided into an upper chamber 3 and a lower chamber 4 by a partition plate 2, a cooling air suction hole 5 is opened in the upper chamber 3, and a pair of adsorption cylinders filled with an adsorbent. While storing 6
A pump unit 7 is enclosed in the lower chamber 4 and a discharge duct 9 with a fan 8 is provided at the bottom. In the figure, 10 is a pump cooling fan.

With such a structure, the outside air flowing into the upper chamber 3 through the suction hole 5 is introduced into the lower chamber 4 through the through hole of the partition plate 2, where the pump unit 7 is cooled and then the discharge duct. 9 is discharged to the outside (see the arrow in the figure).

Further, since the pump unit 7 is accompanied by large vibrations in the vertical direction and the rotation direction, the discharge duct 9 is prevented from being transmitted to the outer plate of the air regenerator body 1 or the like.
It was usually supported by a receiving member 11 made of vibration-proof rubber.

[0006]

The above-mentioned conventional air regenerator has the following problems to be solved. (1) The fan 8 installed below the pump unit 7
Since the pump unit 7 draws in hot air that radiates heat,
Low efficiency and increased power consumption. Further, if no countermeasure is taken against the sound emitted by the fan 8, it is added to the sound of the pump unit 7 and the noise level is further increased. When the fan 8 is installed above the pump unit 7, the sound leaks from the suction hole 5 of the upper chamber 3 to the outside, so that further noise countermeasures are required.

(2) On the other hand, if the receiving member 11 that supports the pump unit 7 is soft, it is excellent in vibration isolation, but it cannot support the pump load, and the rubber is severely deteriorated. However, there is no anti-vibration effect and the outer plate or the like resonates.

[0008] Therefore, an object of the present invention is to provide an air regenerator which can achieve pump cooling with a small power and can significantly reduce noise.

[0009]

Means for Solving the Problems In order to achieve the above object, the structure of the present invention has an adsorption column filled with an adsorbent,
Air is pressure-fed to the adsorption column through an air blower to adsorb moisture, nitrogen and harmful components in the air to take out enriched oxygen and to adsorb the moisture, nitrogen and harmful components with a vacuum pump. In an air regenerator equipped with a pressure swing type gas separation device for discharging to the outside, the air blower and the vacuum pump are uniaxially arranged on both sides of a motor arranged with a horizontal axis below a partition plate of the main body of the air regenerator. Installed, a cooling fan is provided at both ends of the shaft to form a pump unit, and both ends of the pump unit are suspended and supported by a vibration-proof rubber plate whose upper part is held by the partition plate, and the vibration-proof rubber plate is used to It is characterized in that a cooling air passage of the pump chamber is formed to discharge the cooling air sucked by the cooling fan from the discharge duct at the bottom.

[0010]

The anti-vibration rubber plate shields the sound generated in the pump chamber, and by suspending the pump unit with the anti-vibration rubber plate, the anti-vibration rubber plate can be supported more stably than the conventional one that is supported from below. In addition, it has a great anti-vibration effect. Also,
Since the conventional pump cooling fan is used to forcibly cool the inside of the pump chamber, a new cooling fan is not required and the sound produced by the fan does not increase.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 is a front sectional view of the air regenerator, FIG. 2 is a side sectional view of the same, FIG. 3 is an enlarged view of a suspension portion of a vibration-proof rubber plate, and FIG. 4 is an enlarged view of a pump unit mounting portion.

As shown in the figure, the air regenerator body 20 is formed in a box shape, and the inside thereof is divided into an upper chamber 22 and a lower chamber 23 by a partition plate 21 having a through hole 21a.

In the upper chamber 22, a cooling air suction hole 2 is provided.
4 is opened with the baffle plate 25, and a pair of adsorption cylinders 2 filled with an adsorbent such as zeolite
6 is stored.

In the lower chamber 23, an anti-vibration rubber plate 28 is located inside the through hole 21a to define a pump chamber 27.
A twin pump type pump unit 30 in which an air blower and a vacuum pump are driven by a single motor 29 is suspended from the anti-vibration rubber plate 28.

That is, the pump unit 30 is suspended on the suspension ring portion 31 of the vibration-proof rubber plate 28 at both ends of the tubular shape (see FIG. 4). On the other hand, the anti-vibration rubber plate 28 has its upper end fixed to the partition plate 21 with the mounting hardware 32, the pressing plate 33 and the mounting bolt 34 (see FIG. 3), and the lower end provided on the bottom of the lower chamber 23. It is loosely attached to the outer surface of the discharge duct 35 with a large number of slits 35a by a mounting screw 36.

In the figure, 37 is a cooling fan attached to both ends of the output shaft of the motor 29, and 38 is a sound absorbing material attached to the inner surface of the main body.

With this structure, the air pressurized on the air blower side of the pump unit 30 is sent to the adsorption cylinder 26 through a pipe (not shown), and nitrogen and the like are adsorbed in the adsorption cylinder 26. The oxygen-enriched air is sent from the upper outlet of the adsorption column 26 into the room through a pipe (not shown). On the other hand, the nitrogen or the like adsorbed in the adsorption cylinder 26 is pump unit 3
It is discharged to the outside through a pipe (not shown) by the vacuum pump side of 0, and the original function of the air regenerator is achieved.

When the pump unit 30 is cooled, the outside air is introduced from the suction hole 24 into the upper chamber 22 through the baffle plate 25 by the rotation of the cooling fan 37, and from there, through the through hole 21a of the partition plate 21. Lower chamber 2
3, after cooling the blower, pump, etc. from both sides of the pump unit 30, the multiple slits 3 of the discharge duct 35
It passes through 5a and is discharged to the outside of the pump chamber 27.

As a result of cooling in this way, the pump chamber 2
It became possible to lower the room temperature of the pump while preventing sound leakage with 7 sealed. In addition, the pump unit 30
Since the vibration-proof rubber plate 28 receives the vibration on a wide surface, the load per unit area is small, and the pump unit 3 is within the elastic limit of the rubber.
0 is displaced, and the vibration and the accompanying noise are greatly reduced as compared with the lower support system of the pump unit in the conventional example.

The present invention is not limited to the above embodiment,
It goes without saying that various modifications can be made without departing from the gist of the present invention.

[0021]

As described above, according to the present invention, the anti-vibration rubber plate is effectively used to support and cool the pump unit. Therefore, a new cooling fan is not provided for the pump chamber. Cooling is possible, power of the fan and equipment costs are reduced, and noise can be reduced.

[Brief description of drawings]

FIG. 1 is a front sectional view of an air regenerator showing an embodiment of the present invention.

FIG. 2 is a side sectional view of the same air regenerator.

FIG. 3 is also an enlarged view of a suspension part of a vibration-proof rubber plate.

FIG. 4 is likewise an enlarged view of a pump unit mounting portion.

FIG. 5 is a front sectional view of a conventional example.

[Explanation of symbols]

 20 Air Regenerator Main Body 21 Partition Plate 26 Adsorption Cylinder 27 Pump Chamber 28 Anti-Vibration Rubber Plate 29 Motor 30 Pump Unit 35 Discharge Duct 37 Cooling Fan

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Noriaki Mizutani No. 20 Kitakanyama, Otaka-cho, Midori-ku, Nagoya-shi, Aichi Chubu Electric Power Co., Inc. Technology Development Headquarters Electric Utilization Technology Laboratory (72) Inventor Norichika Kai Nagasaki City, Nagasaki Prefecture 1-1, Atsunoura Town, Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard (72) Inventor Shozo Kaneko 1-1, Atsunoura Town, Nagasaki City, Nagasaki Prefecture Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard Co., Ltd.

Claims (1)

Claim: What is claimed is: 1. An adsorption column filled with an adsorbent, wherein air is pressure-fed to the adsorption column via an air blower to adsorb moisture, nitrogen and harmful components in the air. In the air regenerator equipped with a pressure swing type gas separation device for extracting the enriched oxygen and adsorbing the adsorbed moisture, nitrogen and harmful components to the outside with a vacuum pump, the air blower and the vacuum pump are replaced by an air regenerator. It is uniaxially mounted on both sides of a motor that has a shaft horizontally arranged below the partition plate of the main body, and cooling fans are provided at both shaft ends to form a pump unit. Both ends of this pump unit are used as the partition plate. The upper part is suspended and supported by a held vibration-proof rubber plate, and the vibration-proof rubber plate forms a cooling air passage of a pump chamber for discharging the cooling air sucked by the cooling fan from a discharge duct at the bottom. To Gas-playback machine.