KR100671467B1 - Rotray Air Valve - Google Patents

Abstract

The present invention relates to a valve system of an oxygen generator that requires an air dispersion valve.

In the present invention, the air inlet and nitrogen outlet space are separated from each other through a bearing having a barrier function to improve the rotational performance of the rotating body while uniting the air inlet and the nitrogen outlet, so that the nitrogen outlet during air inlet through the air inlet This prevents the air from being lost due to backflow and prevents the loss of nitrogen backflow through the air inlet when nitrogen is introduced, and also prevents the air from being lost between the gap between the valve body and the rotor. It provides a rotary air valve that improves concentration, flow rate performance, and reduces cost by reducing the capacity of the air compressor through bearings attached to the rotor, while extending the life of the product by improving the rotational performance of the rotor.

Rotary air valve, rotor, air inlet, nitrogen outlet

Description

Rotary Air Valve {Rotray Air Valve}

1 is a structural diagram of a solenoid valve applied to a conventional oxygen generator.

Figure 2 is a structural diagram of a rotary valve applied to a conventional oxygen generator.

Figure 3 is a front perspective view showing the structure of a rotary air valve in one embodiment of the present invention.

Figure 4 is a plan view showing the structure of a rotary air valve in one embodiment of the present invention.

Figure 5 is a partial cutaway perspective view showing the structure of a rotary air valve in one embodiment of the present invention.

Figure 6 is a perspective view showing the structure of a rotating body applied to the rotary air valve in one embodiment of the present invention.

Figure 7 is a front view showing the structure of a rotating body in one embodiment of the present invention.
Figure 8 is a schematic cross-sectional view showing the flow of air discharge and nitrogen injection.

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

30; Valve body 31; Air inlet

32; Nitrogen outlet 33,34; First and second euro

40; Rotating body 41,42; 1st and 2nd rotation shaft

43,44; First and second grooves 45; Air injection path

46; Nitrogen exhaust channel 51,52; First and second bearing

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The present invention relates to a valve system of an oxygen generator required by an air dispersion valve, and more particularly, unitizes the air inlet and the nitrogen outlet, while blocking the air inlet and the nitrogen outlet to improve rotational performance of the rotating body. Separating through the function bearing prevents the air from flowing back to the nitrogen outlet when the air is inserted, and prevents the nitrogen from flowing back through the air inlet when the nitrogen is introduced, as well as the valve body through the bearing of the barrier film function. The present invention relates to a rotary air valve that prevents air from being lost between the gap between the rotor and the rotor, thereby improving flow rate performance as well as oxygen concentration of the oxygen generator.

As is well known, as environmental destruction and air pollution intensify, oxygen generators have become commonplace in various fields for improving the living environment and promoting health, and conventional oxygen generators use air and nitrogen by applying a 3-way solenoid valve. The fluid flow of (N2) was controlled.

However, the solenoid valve has a disadvantage in that the service life and durability are greatly reduced when used for a long time.

That is, the conventional solenoid valve as shown in FIG. 1 constitutes a valve body 10 having an air inlet 11, an air outlet 12, a nitrogen inlet 13, and a nitrogen outlet 14. Inside 10 is a structure in which a fluid 15 made of rubber packing is formed.

The fluid 15 has a long wear time for the intake and discharge of air and nitrogen, that is, the long-term use caused a severe wear phenomenon, in which case the intake and discharge of air and nitrogen is not properly Even if inhalation occurs, air loss is caused and the performance of the oxygen generator is reduced.

In addition, the main body 10 of the solenoid valve applied to the conventional oxygen generator has a disadvantage in that the structure is complicated, such as to connect the tube separately.

Accordingly, by applying a rotary valve to the oxygen generator to improve the problem of the solenoid valve.

That is, as shown in FIG. 2, the rotary valve constitutes a valve body 20 having an air inlet 21, an air outlet 22, a nitrogen inlet 23, and a nitrogen outlet 24. Inside the 20), the rotating body 25 was comprised.

However, the rotary valve has to maintain a predetermined gap G1 between the rotary body 25 and the valve body 20 so that the rotary body 25 can be rotated, and the air inlet 21 and Since the nitrogen outlet 24 is a dual structure, when the air is sucked into the air inlet 21 by the compression action of the air compressor, the air is not discharged in the bed direction, but the nitrogen outlet through the gap G1. Emission to (24) resulted in air loss.

That is, when the pressure and flow rate of the air sucked through the first air suction port 21 is 100%, the pressure and flow rate of the air discharged and lost through the gap G1 to the nitrogen discharge port 24 is about 80%. The pressure and flow rate of the air discharged normally in the bed direction through the air discharge port 22 are about 20%, and the oxygen concentration and flow rate performance of the oxygen generator are greatly reduced.

In addition, since the rotary valve has no blocking film between the air inlet 21 and the nitrogen outlet 24, when the nitrogen is introduced into the nitrogen inlet 23, the nitrogen is directly through the nitrogen outlet 24. The valve body 20 through the air compressor is not 100% discharged, the loss back flow into the air inlet 21 through the gap (G1) formed between the rotary body 25 and the valve body 20 is severely generated. The flow rate and pressure of the air introduced into the device were greatly lowered, which resulted in a decrease in the performance of the oxygen generator.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the present invention, the air inlet space and nitrogen discharge through the bearing of the barrier membrane function to improve the rotational performance of the rotating body while unifying the air inlet and nitrogen outlet port By separating the spaces from each other, it prevents the air from flowing back to the nitrogen outlet when the air is introduced through the air inlet, and prevents the nitrogen from flowing back to the air inlet when the nitrogen is introduced. By preventing air loss between the gaps between the rotors, it improves the oxygen concentration of the oxygen generator as well as the flow rate performance, and reduces the cost by reducing the capacity of the air compressor through the bearings coupled to the rotors. The purpose is to provide a rotary air valve that extends the life of the product. .

Rotary air valve of the present invention for achieving the above object,

In order to optimize air dispersion in the oxygen generator, the valve body is configured to be coupled to the motor at the bottom of the outer surface, and the air inlet and the nitrogen outlet are formed at the upper and lower ends of the valve body, respectively.

Forming first and second flow passages penetrating in the bed direction from the inside of the valve body,

The two-bed type which has the first and second rotation shafts to rotate by a motor in the inner space of the valve body and unify the air input and nitrogen discharge of the air inlet and the nitrogen outlet through the first and second flow paths. Composed of (Two-Bed Type) rotating body,

A first bearing is coupled to the first rotation shaft,

The second rotary shaft is formed by connecting a second bearing functioning as a barrier film by forming a nitrogen discharge passage to prevent air loss through the gap between the valve body and the rotor while separating the air input space and the nitrogen discharge space. do.

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According to another aspect, the rotating body,

A symmetrical structure forms a U-shaped first and second grooves in which air input and nitrogen discharge are united through the first and second flow paths,

It is formed by penetrating the air inlet flow path in the direction of the first rotary shaft connected to the air inlet port in the first groove to guide the air introduced through the air inlet in the bed direction through the first and second flow paths,

In order to guide the nitrogen introduced from the bed direction through the first and second flow paths to the nitrogen discharge port, the second groove portion is characterized in that the nitrogen discharge passage communicating with the nitrogen discharge port through the nitrogen discharge passage of the second bearing.

Hereinafter, with reference to the accompanying drawings illustrating a preferred embodiment of the present invention.

Figure 3 is a front perspective view showing a structure of a rotary air valve in one embodiment of the present invention, Figure 4 is a plan view showing a structure of a rotary air valve in one embodiment of the present invention, Figure 5 is an embodiment of the present invention Partial cutaway perspective view showing a structure of a rotary air valve, Figure 6 is a perspective view showing a structure of a rotating body applied to a rotary air valve in one embodiment of the present invention, Figure 7 is a rotating body in one embodiment of the present invention Figure 8 is a front view showing the structure of, Figure 8 is a schematic cross-sectional view showing the flow of air discharge and nitrogen injection.

3 to 5, a rotary air valve according to an embodiment of the present invention includes a valve body 30, a rotating body 40, first and second bearings 51 and 52, and a motor not shown. do.

The valve body 30 is for optimizing air dispersion in the oxygen generator, and forms a space portion within which the rotor 40 can be mounted.

An air inlet 31 connected to an air compressor (not shown) is formed at an upper end of the valve body 30, and a nitrogen outlet 32 is formed at one side of the lower end of the valve body 30.

The first and second flow paths 33 and 34 guide the air discharge and the nitrogen injection alternately when the rotation of the rotor 40 is made from the inside of the valve body 30 to the bed direction.

6 and 7, the rotor 40 is mounted in the space in the valve body 30 to rotate from the drive of the motor, which is the first and second rotary shafts 41 (up and down respectively) ( 42).

3, 4, and 5, a first bearing 51 for guiding the rotation of the rotating body 40 to be easily coupled to the first rotating shaft 41 is coupled to the second rotating shaft 42. A second bearing 52 for guiding the rotation of the rotor 40 to be easily coupled with the first bearing 51 is coupled, and through a nitrogen discharge passage 46 provided in the second bearing 52. While separating the space in the valve body 30 into the air input space and the nitrogen discharge space, the air through the gap (not shown in the figure) that can only be formed between the valve body 30 and the rotating body 40 It is configured to prevent the loss of.

In addition, a non-illustrated motor is positioned at a lower end of the outer surface of the valve body 30, and the motor is connected to the second rotation shaft 42 to rotate the rotor 40.

In addition, when the air is injected through the air inlet 31, the rotating body 40 guides it in the bed direction through the first flow path 33 or the second flow path 34, and the first flow path ( 33) or when the nitrogen discharged from the bed direction is introduced through the second flow path 34, the introduced nitrogen is guided to the nitrogen outlet 32 while being rotated by the motor, and the air inlet 31 and the nitrogen outlet It consists of a two-bed type structure in which the air input and the nitrogen discharge of (32) are united.

That is, the rotor 40 has a structure in which the U-shaped first and second groove portions 43 and 44 are symmetrical from side to side to unite air input and nitrogen discharge.

The first groove 43 has an air inlet passage 45 communicating with the air inlet 31 positioned at the upper end of the valve body 30 to form a first flow passage 33 for a predetermined time (about 10 seconds) or The air is discharged in the bed direction through the second flow path 34.

The second groove 44 is formed with a nitrogen discharge passage 46 in communication with the nitrogen discharge port 32 located on one side of the lower end of the valve body 30, the first flow path 33 for a predetermined time (about 10 seconds) ) Or the nitrogen discharged from the bed direction through the second flow path 34 to the nitrogen discharge port (32).
Here, the nitrogen discharge passage 46 of the second groove 44 is denoted by the same reference numerals as the nitrogen discharge passage 46 of the second bearing 52, the nitrogen discharge passage formed in the second bearing 52 ( 46 corresponds to or does not coincide with the nitrogen discharge passage 46 provided in the second groove 44 according to the rotation range of the rotating body 40 rotated by the motor.

At this time, when the air is injected through the air inlet 31, the air is discharged in the bed direction through the air inlet passage 45 → the first groove 43 and the first flow path 33 as shown in FIG. At the same time, the nitrogen discharged in the bed direction is discharged to the nitrogen discharge port 32 through the opposite second flow passage 34 → the second groove portion 44 and the nitrogen discharge passage 46. 1-cycle).

Then, the rotor 40 rotates 180 ° from the driving of the motor, which is not shown, so that the air introduced through the air inlet 31 flows from the air inlet passage 45 to the first groove 43 and the second flow path ( 34 is discharged in the bed direction at the same time, the nitrogen discharged from the bed direction to the nitrogen discharge port 32 through the first passage 33 → the second groove 44 and the nitrogen discharge passage 46 in the opposite direction It is another cycle process (2-cycle) which discharge | release is made, The said rotating body 40 is comprised so that the said cycle process (1, 2-cycle) may be repeated from the drive of a motor.

Referring to Figures 3 to 8 attached to the operation of an embodiment of the present invention configured as described above are as follows.

First, the rotor 40 in the valve body 30 is rotated by driving the motor, so that the first groove 43 of the rotor 40 is positioned in the first flow path 33, and the rotor 40 The second groove portion 44 of the) is positioned in the second flow path 34.

Then, when the air is introduced into the air inlet 31 located at the upper end of the valve body 30 from the operation of the air compressor, the injected air is returned through the air inlet passage 45 in communication with the air inlet 31 After being guided to the first groove portion 43 of the whole 40 is discharged in the bed direction through the first flow path (33).

In addition, the air is discharged through the first flow path 33, and the second groove 44 in the opposite direction symmetrical with the first groove 43 is connected to the bed through the second flow path 34. Nitrogen flows in from the direction,

The nitrogen is formed in the second groove 44 and the second bearing 52 and is discharged to the outside of the valve body 30 through the nitrogen discharge passage 46 and the nitrogen discharge port 32 that match each other. The cycle process (1-cycle) is completed.

At this time, the air input space and the nitrogen discharge space of the valve body 30 is separated from each other through the nitrogen discharge passage 46 of the second bearing 52 is coupled to the second rotation shaft 42 of the rotating body 40 Bar,

The air introduced into the first groove portion 43 through the air inlet 31 is prevented from being flowed back to the nitrogen discharge port 32 by the second bearing 52, and is introduced into the second groove portion 44. Nitrogen is prevented from flowing back to the air inlet 31 by the second bearing 52, and air is lost through a gap that must be formed between the valve body 30 and the rotor 40. Is prevented.

On the other hand, as described above, one cycle process (1-cycle) is performed for a predetermined time (about 10 seconds), and the cycle process (1-cycle) is completed and at the same time, the rotating body 40 of the motor It rotates 180 ° from the drive to perform another 2-cycle.

That is, when the rotor 40 rotates 180 ° from the driving of the motor, the first groove 43 is located in the second flow path 34 and is symmetrical with the first groove 43. The second groove 44 is located in the first flow path 33.

Then, when air is introduced into the air inlet 31 located at the upper end of the valve body 30 from the operation of the air compressor, the introduced air is through the air inlet passage 45 in communication with the air inlet 31 After being guided to the first groove portion 43 of the rotating body 40 is discharged in the bed direction through the second flow path (34).

On the contrary, nitrogen is discharged from the bed direction through the first flow path 33 in the second groove 44 in the opposite direction symmetrical with the first groove 43.

The nitrogen is formed in the second groove 44 and the second bearing 52 and is discharged to the outside of the valve body 30 through the nitrogen discharge passage 46 and the nitrogen discharge port 32, which coincide with each other. One cycle is completed.

As described above, the present invention repeatedly performs the above-described cycle process (1,2-cycle), while separating the air input space and the nitrogen discharge space through the second bearing 52 of the barrier film function, thereby countercurrent flow of air and nitrogen. Of course, by improving the conventional problem caused by the loss of air between the valve body 30 and the rotating body 40 to improve the oxygen generation efficiency in the oxygen generator, and the second bearing 52 of the barrier film function By improving the rotational performance of the rotating body 40 has a feature that can further extend the life of the rotary air bearing valve.

As described above, the present invention separates the air inlet space and the nitrogen outlet space from each other through a bearing having a barrier function to improve the rotational performance of the rotor while uniting the air inlet and the nitrogen outlet, thereby introducing air through the air inlet. Air is prevented from being lost due to backflow to the nitrogen outlet at the same time. On the contrary, when nitrogen is introduced, it is prevented from being lost due to backflow of nitrogen to the air inlet. The oxygen concentration of the generator as well as improve the flow performance, and through the bearing coupled to the rotor to reduce the cost of the air compressor has the effect of extending the life of the product by improving the rotation performance of the rotor.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (2)

In the rotary air valve formed with a valve main body is coupled to the motor at the bottom of the outer surface to optimize the air dispersion in the oxygen generator, the upper and lower ends of the valve body, respectively, the air inlet and nitrogen outlet, It is formed by passing through the first and second flow paths in the bed direction from the inside of the valve body, The two-bed type which has the first and second rotation shafts to rotate by a motor in the inner space of the valve body and unify the air input and nitrogen discharge of the air inlet and the nitrogen outlet through the first and second flow paths. (Two-Bed Type) makes up the rotating body, A first bearing is coupled to the first rotating shaft, The second rotary shaft is characterized in that the nitrogen discharge flow path is formed to separate the air input space and the nitrogen discharge space to prevent air loss through the gap between the valve body and the rotating body to connect a second bearing that functions as a barrier film Rotary air valve. According to claim 1, The rotating body, A symmetrical structure forms a U-shaped first and second grooves in which air input and nitrogen discharge are united through the first and second flow paths, It is formed by penetrating the air inlet flow path in the direction of the first rotary shaft connected to the air inlet port in the first groove to guide the air introduced through the air inlet in the bed direction through the first and second flow paths, A rotary path, characterized in that a nitrogen discharge channel is formed in the second groove to communicate with the nitrogen discharge port through the nitrogen discharge channel of the second bearing to guide nitrogen introduced from the bed direction through the first and second flow paths to the nitrogen discharge port. Air valve.

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