KR100448568B1 - One body oxygen generator - Google Patents

Abstract

The present invention relates to an integrated oxygen generator, and specifically, a plurality of zeolite beds and oxygen storage units are organically formed in one structure to prevent pressure loss and pressure leakage according to the length of the pipe for oxygen transport and pressure supply, and the process It relates to an integrated oxygen generator having a simple configuration that improves the complexity of.

According to the present invention, a plurality of zeolite beds and oxygen drain stages and other various devices constituting the pressure swing adsorption type oxygen generator are formed integrally without the tube, thereby reducing pressure loss and pressure drop according to the length of the tube or the position of the zeolite bed. Can be removed In addition, since the oxygen drain stage, which receives oxygen from the zeolite bed, is positioned at substantially the same distance from each zeolite bed, there is an effect that the transfer of air is constant for each process. In addition, by appropriately controlling the swing valve speed of the oxygen generator, it is possible to supply a certain amount of oxygen content, and it is manufactured in a small size by a significantly smaller volume than in the prior art, and the oxygen is cheaply priced in an interior of a car or a building. There is an effect that can be fed into.

Description

Integrated Oxygen Generator {ONE BODY OXYGEN GENERATOR}

The present invention relates to an integrated oxygen generator, and specifically, a plurality of zeolite beds and oxygen storage units are organically formed in one structure to prevent pressure loss and pressure leakage according to the length of the pipe for oxygen transport and pressure supply, and the process It relates to an integrated oxygen generator having a simple configuration that improves the complexity of.

In general, air is a kind of mixed gas, and in addition to oxygen and nitrogen as main components, it contains a small amount of inert gas such as carbon dioxide and argon, and oxygen, which occupies 21% of air, is an essential component for human or animal respiration.

Such oxygen is usually detected in the city at less than 21% oxygen concentration, but in the clear forest, it is about 23% to 25%, so the refreshing feeling felt by the change of trace amount of oxygen changes, and many oxygen generators are developed for this reason. Recently, an oxygen generator using a PSA (Pressure Swing Absorption) process, which is used to separate or purify a gas by separating or removing a specific component from a gas mixture, has been proposed.

In particular, the pressure swing adsorption oxygen generator is a synthetic zeolite which is widely used in the separation process due to its excellent adsorption and separation characteristics since it was first studied by Besser et al. In 1938. Divided.

First, while compressed air passes through a zeolite bed filled with zeolite (not shown), nitrogen as a strong adsorption component is adsorbed to the adsorbent, and oxygen as a weak adsorption component is passed through as a production gas. Comes out.

In the second process, when the adsorption tower I is saturated with nitrogen, which is a strong adsorption component, the air supply to the adsorption tower I is finished, the compressed air is supplied to the adsorption tower II, and the adsorption tower I undergoes the same process as in the adsorption tower I. I is depressurized with the inlet open and nitrogen desorption occurs.

In the third process, when the decompression is finished, the outlet is opened and high pressure oxygen is introduced to clean the adsorption tower. The adsorption tower II continues to supply compressed air and continue the process until it is saturated with nitrogen.

In the fourth process, when the adsorption tower II is saturated with nitrogen, the inlet is closed and the pressure is reduced. At the same time, the cleaned adsorption tower I is supplied with compressed air and generates oxygen. This series of processes is repeated to generate oxygen continuously.

The overall system of a conventional PSA oxygen generator generating oxygen by applying the above processes is shown in FIG. 1.

In FIG. 1, the zeolite bed is named instead of the above-mentioned adsorption tower, but it is conceptually the same. For example, three zeolite beds are installed in parallel, and the air compressed by the compressor is sequentially spaced at a predetermined time interval to each zeolite bed. The swing valve was placed for injection.

Each zeolite bed is connected such that the output stages are all collected at an oxygen drain stage, and the oxygen drain stage is configured to discharge the accumulated oxygen to the outside as the valve is opened and closed.

In this configuration, the air transfer generated by each process is composed of a pneumatic piping unit and a pipe or a connecting pipe. As shown in FIG. 1, the distance from the oxygen drain stage is different depending on the position of the zeolite bed. Pressure loss and pressure drop along the length may occur.

In addition, the pressure difference generated as the length of the pipe decreases increases the process cost by lowering the lifetime of the zeolite bed or the adsorption rate of air, and complicates the process for checking or maintaining the state of the zeolite bed from time to time. Many problems arise.

The present invention is to solve the problems as described above, an object of the present invention is to ensure a constant transport of air for each process in the oxygen generator using a zeolite bed, the length of the tube or the position of the zeolite bed To prevent the pressure loss and pressure drop.

Other objects of the present invention will be described in more detail in the configurations and operations described below.

1 is a system diagram for showing a conventional PSA oxygen generator.

2 is an overall perspective view for showing the integrated oxygen generator according to the present invention.

3 is a horizontal cross-sectional view of the top cover according to the present invention.

4 is a vertical sectional view of the lower cover according to the invention.

Figure 5 is an overall perspective view of the compressor according to the present invention. Figure 6 is a perspective view of the upper cover according to the present invention. Figure 7 is a vertical sectional view of the upper cover showing the movement of generated oxygen.

* Description of the symbols for the main parts of the drawings *

21, 22, 23: zeolite bed 40: air filter

50: oxygen drain means 60: swing valve

80: upper cover 120: through hole

70: oxygen inlet 90: lower cover

110: air compression unit 130: motor

The integrated oxygen generator according to the present invention has a supply end through which air flows in the lower side, contains a zeolite that adsorbs a highly adsorbable component in the air preferentially in the air, and flows out from the air adsorbed by the zeolite on the upper side. An air filtration part having an outlet end through which the oxygen flows out, the air filter comprising a plurality of zeolite beds formed in a cylinder; An oxygen drain means having a cylindrical shape having the same shape as that of the zeolite bed and having a circular arrangement around a predetermined point, wherein adjacent surfaces are interviewed with each other; A swing valve for sequentially supplying compressed air at a predetermined time interval to a supply end positioned below the air filtration unit; The upper portion of the air filtering portion and the oxygen drain means, the oxygen inlet for providing a path so that the oxygen flowing out of the zeolite bed flows into the oxygen drain means is formed to protrude outward Characterized in that it has a top cover.

The compressor further includes a compressor that sucks and compresses air by the reciprocating motion of the piston spoken to one shaft of the motor and applies the compressed air to the swing valve side. A predetermined gear, such as a worm gear, is interlocked with the other shaft of the motor. The decelerated or accelerated rotational force is configured to be applied to the swing valve. Preferably, the compressed air applied from the compressor by the decelerated or accelerated rotational force is about 20 seconds to the air filter part by the swing valve. It is set to be provided at intervals and sequentially.

The apparatus further includes a motor control means for controlling the motor, and as the rotational speed of the motor is controlled by the control of the motor control means, the compression ratio of air and the air providing time of the swing valve can be controlled, and the oxygen drain An oxygen detecting sensor may be further included to sense an amount of oxygen introduced into and stored in the means and to supply a constant oxygen by applying a detection signal to the motor control means.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view showing a preferred embodiment according to the present invention, the air filter 40, oxygen drain means 50, swing valve 60, upper cover 80, lower cover 90 and air as a whole Compression section 110 is configured.

Specifically, the air filtering unit 40 is composed of a plurality of zeolite beds, which are referred to as the first zeolite bed 21, the second zeolite bed 22, and the third zeolite bed 23, each of the zeolite beds 21 ), (22), (23) has a supply end (not shown) in which compressed air is introduced into the lower side, and contains a zeolite (not shown) that adsorbs a highly adsorptive component in the compressed air introduced therein. The upper side has an outlet end (not shown) in which oxygen is finally discharged to the outside after nitrogen or the like is adsorbed by the zeolite.

These zeolite beds 21, 22, 23 are arranged to be in close contact with each other, as can be seen in the perspective view of Figure 2 and the top cover 80 of Figure 3, in one embodiment three zeolite beds 21, (22) and (23) and one oxygen drain stage 50 are arranged so that their cross-section is clover-shaped. Such an arrangement allows oxygen to be absorbed due to the filtering characteristics of the zeolite bed that separates oxygen by sucking compressed air. In order to distribute the compressed air most efficiently and efficiently into the zeolite bed, the cylindrical shape is considered to be the most efficient. A mold composed of four completely cylindrical shapes is difficult to manufacture and has a cross shape inside. While the inefficient space portion close to is generated, the cross-sectional structure of the clover as in the embodiment is easy to manufacture the mold and there is almost no decrease in the efficiency of oxygen generation. Will.

In addition, the through hole 120 of the upper cover 80 is positioned on the center of the air filtration unit 40 having such a clover-shaped cross section as shown in FIG. 3. In general, it is configured to allow oxygen to pass through the portion penetrated in the upper cover 80 so as to allow a configuration to exclude a tube used for oxygen transfer. That is, the zeolite beds 21, 22, 23 The oxygen generated sequentially from the) side is sequentially introduced into the upper cover 80 through the through hole 120 on the upper cover 80 side, and the introduced oxygen appears in the perspective view of FIG. 6 and the cross-sectional view of FIG. 7. As shown in the drawing, the upper inner cover of the upper cover, that is, the oxygen inlet 70 passes through the through hole 120 and flows into the oxygen drain means 50.By using the upper cover 80 as an oxygen path between the allite beds 21, 22, 23 and the oxygen drain means 50, it is possible to easily implement the form in which ribs and pipes are excluded. For this reason, the arrangement of dividing the partition wall of the upper cover 80 having the through-hole 120 and the oxygen inlet 70 therein, which can provide the oxygen path in the center, into 4 divisions, 5 divisions, etc. is also sufficient. It should be noted that the shape shown in FIG. 2 is one embodiment. The upper cover 80 which covers the upper and lower parts of the air filtration part 40 and the oxygen drain means 50 in common. ) And the lower cover 90 are illustrated in FIG. 3, which shows the horizontal cross-sectional shape of the upper cover 80 viewed upward from the lower side. In FIG. 3, the zeolite beds 21, 22, and 23 are shown. The space where the generated oxygen is provided inside the upper cover 80, namely The through hole 120 that serves to enter the small inlet 70 is shown well, as shown in Figure 3 through hole 120 of each of the zeolite bed (21), (22), (23) The reason why the upper part of the zeolite bed is penetrated by a predetermined area is that if there are too many open parts in the upper part of the zeolite bed, the pressure inside the zeolite bed is lowered, which may interfere with the process of adsorbing components other than oxygen. Because it can.

The lower portion of the air filter 40 having the configuration described above is a swing valve 60 for sequentially providing compressed air to the plurality of zeolite beds 21, 22, 23 according to a predetermined time interval is configured The swing valve 60 has a through hole for applying compressed air through which the compressed air can pass (not shown), and the through hole for applying compressed air as the swing valve 60 rotates at a predetermined time interval (not shown). H) are sequentially positioned below the zeolite beds 21, 22 and 23 so that the compressed air can be sequentially provided to the zeolite beds 21, 22 and 23 for a predetermined time. It is composed.

In addition, a predetermined motor 130 is attached to one side of the air filtering unit 100 as shown in Figure 5 is configured to suck and compress air by the piston reciprocating motion to apply to the swing valve 60 side.

The operation flow of the integrated oxygen generator having the above configuration is as follows.

First, the air is sucked from the air compression unit 110 interlocked with the shaft of the motor 130 to compress air by the piston reciprocating motion and apply it to the swing valve 60 side.

At this time, if the compressed air applying through hole (not shown) of the swing valve 60 is currently located at the compressed air supply end (not shown) side of the first zeolite bed 21, the compressed air applying through hole (not shown) The compressed air passing through) is introduced into the first zeolite bed 21, and nitrogen, which is a strong adsorption component, is adsorbed to the zeolite (not shown), and oxygen, which is a weak adsorption component, passes through the zeolite to form the zeolite bed ( 21) It is pushed out, and the oxygen discharged to the outside passes through the through-hole 120 of the upper cover 80, the upper side of the zeolite bed 21 is blocked by the upper cover 80, Figure 7 The oxygen inlet 70 provided inside the upper cover 80 posted in the exit, the oxygen collected primarily in the inner space 86 is introduced into the oxygen drain means 50 is collected.

When the oxygen generation process in the first zeolite bed 21 ends, the through hole (not shown) of the swing valve 60 moves toward the compressed air supply end (not shown) of the second zeolite bed 22. It is positioned to rotate, the pressure in the first zeolite bed 21 is reduced to desorption of nitrogen and at the same time the adsorption of nitrogen and the passage of oxygen in the second zeolite bed 22 is made again.

In the second zeolite bed 22, oxygen, which is a weak adsorption component, comes out after the adsorption of nitrogen. Here, the upper cover (through the through hole 120) is similar to the mechanism of the first zeolite bed 21. Oxygen collected primarily in the oxygen inlet 70 provided inside the 80 is introduced into the oxygen drain means 50 through the through-hole 120 and collected, and when viewed from the oxygen drain means 50 side, the first zeolite Subsequent to the oxygen generated and introduced in the bed 21, the second zeolite bed 22, the third zeolite bed 23, the first zeolite bed 21, the second zeolite bed 22, and the like are sequentially arranged. Oxygen is collected during the cycle.

As a result, the structure as described above may have a configuration that does not require a pipe for inducing the flow of air, except for the portion that is applied to the swing valve 60 in the air compression unit 110, unlike the prior art, one integral The simple configuration consists of a smooth oxygen generation can be made.

Although the preferred embodiment of the present invention has been described in detail as described above, those skilled in the art will be able to modify or change the present invention as many as possible without departing from the spirit and scope of the present invention. It will be appreciated that the true technical protection scope of the present invention should be defined by the claims.

According to the present invention, a plurality of zeolite beds, oxygen drain stages, and other various devices constituting the pressure adsorption type oxygen generator are formed integrally without a tube, thereby eliminating pressure loss and pressure drop according to the length of the tube or the position of the zeolite bed. can do.

In addition, since the oxygen drain stage, which receives oxygen from the zeolite bed, is positioned at substantially the same distance from each zeolite bed, there is an effect that the transfer of air is constant for each process.

In addition, by appropriately controlling the swing valve speed of the oxygen generator, it is possible to supply a certain amount of oxygen content, and it is manufactured in a small size by a significantly smaller volume than in the prior art, and the oxygen is cheaply priced in an interior of a car or a building. There is an effect that can be supplied.

Claims (5)

In the integrated oxygen generator, It has a supply end in which air flows in the lower side, and it contains the zeolite which adsorbs a component adsorbable preferentially in air inside, and has an outflow end which flows out the oxygen which flowed out from the air adsorbed by the said zeolite in the upper side. An air filtration part including a plurality of zeolite beds formed in a cylinder; An oxygen drain means having a cylindrical shape having the same shape as that of the zeolite bed and having a circular arrangement around a predetermined point, wherein adjacent surfaces are interviewed with each other; A swing valve for sequentially supplying compressed air at a predetermined time interval to a supply end positioned below the air filtration unit; A compressor for sucking and compressing air by the reciprocating motion of the piston extended to one axis of a predetermined motor and applying the air to the swing valve side; The upper portion of the air filtering portion and the oxygen drain means, the oxygen inlet for providing a path so that the oxygen flowing out of the zeolite bed flows into the oxygen drain means is formed to protrude outward An integrated oxygen generator having an upper cover. delete delete The method of claim 1, And a motor control means for controlling the motor, wherein the compression rate of the air and the air providing time of the swing valve are controlled as the rotational speed of the motor is controlled by the control of the motor control means. The method according to claim 1 or 4, And an oxygen detecting sensor configured to detect an amount of oxygen introduced into and stored in the oxygen drain means and apply a detection signal to the motor control means to supply a constant oxygen.