KR100614300B1 - Plate type orifice module having a multi hole for an oxygen generator - Google Patents

Abstract

The present invention relates to a plate-shaped porous orifice module that can be used in various oxygen generators.

The plate-type porous orifice module for the oxygen generator includes an upper plate having a plurality of nipples connected to mounting components used for the oxygen generator, and a plurality of nipples connected to other mounting components used for the oxygen generator. An orifice hole is formed between the lower plate and the plurality of nipples to adjust the pressure or flow rate of the fluid flowing between the plurality of nipples of the upper plate and the plurality of nipples of the lower plate, and the orifice hole And an orifice plate installed in close contact between the upper plate and the lower plate to maintain the airtightness of the fluid flowing therethrough, wherein the orifice plate performs the function of two or more orifices through two or more orifice holes.

According to the present invention, it is possible to perform the functions of a plurality of orifices with one orifice plate, thereby reducing the number of parts, simplifying the internal structure of the oxygen generator, and reducing the defective rate.

Orifice, Plate, Cleaning Orifice, Noise Reduction Orifice, Orifice Module

Description

Plate Type Orifice Module Having A Multi Hole For An Oxygen Generator}

1 is an opening diagram of an oxygen generator equipped with a plate-type porous orifice module for an oxygen generator according to the present invention.

Figure 2 is an exploded perspective view of the main parts of the oxygen generator equipped with a plate-type porous orifice module for the oxygen generator according to the present invention.

Figure 3 shows an upper plate of the orifice module according to the present invention,

   (a) is a front perspective view, (b) is a rear perspective view, (c) is a front view of a first sealing member,

   (d) is a longitudinal cross-sectional view of the flow path 546 of FIG. 3B.

Figure 4 shows the orifice plate of the orifice module according to the present invention,

   (a) is a front view,

   (b) is a sectional view taken along the line D-D in FIG. 4A,

   (c) is another cross-sectional view taken along the line D-D in FIG. 4A,

   (d) shows another sectional view along the D-D line of FIG. 4A.

Figure 5 shows the lower plate of the orifice module according to the present invention,

   (a) is a front perspective view, (b) is a rear perspective view,

   (c) is a front view of a 2nd sealing member.

Figure 6 is a graph showing the action of the noise reduction orifice hole according to the present invention,

   (a) indicates that there is no noise reduction orifice hole,

   (b) shows the case of a noise reduction orifice hole.

Figure 7 is a schematic diagram showing the configuration of a conventional PSA oxygen generator.

Explanation of symbols on the main parts of the drawings

Oxygen Generator 120 Air Compressor

200 ... Solenoid valve 300 ... Water removal filter

400 ... Orific plate 540 ... Top plate

550 ... first sealing member 560 ... second sealing member

570 bottom plate 800 adsorptive bed

900 ... Plated Porous Orifice Module

The present invention relates to an orifice for use in an oxygen generator, and more particularly to an orifice that is modularized to perform the role of a plurality of orifices required for an oxygen generator through one plate.

Today, oxygen generators are used in various places in various places. Most commonly, oxygen generators provide oxygen to confined spaces in offices or homes to help people recover from fatigue and activate cells. In addition, it is widely used for air purification such as medical oxygen generators, automobile oxygen generators, divers air tank filling oxygen generators and air conditioners.

In order to generate oxygen in this way, PSA (Pressure Swing Adsorption) method is generally used, and hollow fiber or plate-type membrane method, electrolysis method, etc. using the partial pressure difference of oxygen are also used.

Among these, the PSA oxygen generator is a device that separates nitrogen and oxygen from air by using the selective adsorption capacity of a zeolite molecular sieve (zeolite), and is a continuous operation of adsorption, equalization and desorption while changing the pressure of the adsorption bed. Will produce oxygen. That is, when the pressurized air is blown into the adsorption bed filled with the adsorbent, oxygen having low adsorption selectivity is discharged from the outlet of the adsorption bed, and the adsorption bed where the specific component (nitrogen) is adsorbed is reduced to a part of oxygen obtained at high pressure. The process of regeneration (cleaning, desorption) is performed.

7 is an opening diagram showing a schematic configuration of a conventional PSA oxygen generator.

As shown in FIG. 7, the conventional oxygen generator 1 includes an air compressor 20 for compressing air, two flow paths through which compressed air flows, and an electromagnetic valve 30 for controlling the flow path. A pair of adsorption beds 40 and 40a connected to the solenoid valve 30 to adsorb nitrogen to discharge pure oxygen, and a silencer for storing and discharging nitrogen separated through the adsorption beds 40 and 40a; 50).

Here, the air compressor 20 is connected to the filtration filter 10 for removing dust in the outside air into which the inlet is introduced and supplying purified air, and the outlet is connected to one end of the solenoid valve 30, thereby filtering the filtration filter ( The purified air from 10 is compressed and discharged to the solenoid valve 30.

The solenoid valve is generally used to form a branched flow path for the solenoid valve 30 connected to the air compressor 20. At this time, each branched flow path forms a form in which the port is opened to instantly open the compressed air flowing into the inside when the current is supplied, and the port is closed when the supply of current is blocked, and the pair of adsorptive beds 40 and 40a is closed. ) To alternately supply compressed air.

Two suction beds 40 and 40a are independently operated, and an inlet thereof is connected to the solenoid valve 30, and an orifice 90, 90a and 95 is connected to the outlet thereof to maintain the discharge pressure of oxygen at a low pressure. To form an oxygen outlet.

That is, as shown in FIG. 7, the air introduced into the air compressor 20 through the filtration filter 10 is pressurized and introduced into the adsorption bed 40 along the flow path of the solenoid valve 30. Oxygen discharged from) is discharged to the room via the orifices (90,95).

On the other hand, a portion of the oxygen obtained from the adsorption bed 40 is supplied to the adsorption bed 40a through an orifice 90a, the adsorption bed 40a is decompressed and regenerated (washing, desorption) through the silencer 50 It is slowly discharged to the outside without noise.

On the contrary, when the flow path of the solenoid valve 30 is changed, the adsorption and regeneration processes of the adsorption beds 40 and 40a alternate with each other.

As such, in the PSA type oxygen generator 1, three or more orifices 90 and 95 are usually used to control the pressure or flow rate of the fluid, and depending on the system, five or more orifices may be provided. Also, in the case of oxygen generators other than the PSA system, a plurality of orifices are mounted. In order to configure a plurality of orifices as described above, a conventional flow control valve is used or a cylindrical orifice has been used.

However, when a large number of orifices are provided in the oxygen generator, the number of parts increases, the internal structure of the oxygen generator becomes complicated, and assembly is difficult. In addition, the oxygen generator needs to properly adjust the pressure of the fluid passing through the orifice during manufacturing, in the conventional case, such a management is difficult, there is a problem that the failure rate of the product during production is high.

The present invention is to solve the above problems, it is an object to provide a plate-type porous orifice module for the oxygen generator is easy to assemble and repair by reducing the number of parts by modularizing the orifice and simple internal structure. .

In addition, an object of the present invention is to provide a plate-type porous orifice module for an oxygen generator, which can reduce the incidence of product defects by eliminating the pressure adjustment of the orifice.

As one aspect for achieving the above object, the present invention, an upper plate having a plurality of nipples (nipple) connected to the mounting components used in the oxygen generator; A lower plate having a plurality of nipples connected to other mounting parts used for the oxygen generator; And an orifice hole is formed between the plurality of nipples to adjust the pressure or flow rate of the fluid flowing between the plurality of nipples of the upper plate and the plurality of nipples of the lower plate, and the airtightness of the fluid flowing through the orifice hole An orifice plate which is installed in close contact between the upper plate and the lower plate to maintain; The orifice plate includes a plate-type porous orifice module for an oxygen generator that performs the function of two or more orifices through two or more orifice holes.

Preferably, the upper plate or the lower plate is formed therein a flow path for the fluid passing through the nipple, the orifice plate is characterized in that for adjusting the pressure or flow rate of the fluid passed through the flow path.

Also preferably, the plate-shaped porous orifice module may include a sealing member installed between the orifice plate and the upper plate or between the orifice plate and the lower plate to maintain the airtightness of the fluid flowing through the orifice hole; It characterized in that it further comprises.

More preferably, some of the plurality of nipples provided in the upper plate or the lower plate is connected to the adsorption bed, the orifice plate to adjust the pressure or flow rate of the fluid flowing into the adsorption bed when the cleaning is performed in the adsorption bed The cleaning orifice hole and the oxygen discharge orifice hole for controlling the pressure or flow rate of the high concentration of oxygen discharged from the adsorption bed to discharge to the outside atmosphere.

In addition, some of the plurality of nipples provided in the upper plate or the lower plate is connected to the air compressor, the orifice plate may include a noise reduction orifice hole for removing noise by reducing the compressed air supplied from the air compressor. It may be.

In another aspect, the present invention, one surface is provided with a plurality of nipples connected to the mounting components used for the oxygen generator, the other surface is connected to other mounting components used for the oxygen generator An orifice plate having a plurality of nipples formed therein and having an orifice hole formed therebetween so as to adjust a pressure or a flow rate of a fluid flowing between the plurality of nipples; The orifice plate includes a plate-type porous orifice module for an oxygen generator that performs the function of two or more orifices through two or more orifice holes.

In the following description of the present invention, detailed descriptions of related known functions or configurations will be omitted when it is determined that the detailed description may unnecessarily obscure the subject matter of the present invention. Terms to be described later are set in consideration of functions in the present invention, which may vary depending on the intention or custom of the producer producing the product, and the definitions should be made based on the contents throughout the present specification.

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

1 is a block diagram of an oxygen generator equipped with a plate-type porous orifice module for an oxygen generator according to the present invention, Figure 2 is a decomposition of the main parts of the oxygen generator equipped with a plate-type porous orifice module for an oxygen generator according to the present invention 3 is a view showing an upper plate of an orifice module according to the present invention, and FIG. 4 is a view showing an orifice plate of an orifice module according to the present invention. 5 is a view showing the lower plate of the orifice module according to the present invention, Figure 6 is a graph showing the action of the noise reduction orifice hole according to the present invention.

First, as shown in FIG. 1, one embodiment of the oxygen generator 100 equipped with a plate-type porous orifice module for an oxygen generator according to the present invention includes a filtration filter 110, an air compressor 120, and a second filtration filter. 130, the solenoid valve 200, the water removal filter 300, the adsorption bed 800, the silencer 700, and the like may be provided and have a configuration similar to that of the conventional oxygen generator illustrated in FIG. 7. However, the conventional oxygen generator has been installed a plurality of orifices independently of each other, the plate-type porous orifice module for oxygen generators according to the present invention is characterized by providing a plurality of such orifices in a single module.

As shown in FIG. 2, the plate-type porous orifice module 900 for an oxygen generator according to the present invention includes an upper plate 540, a lower plate 570, and an orifice plate 400.

The upper plate 540 has a plurality of nipples connected to the mounting components used in the oxygen generator 100, and the lower plate 570 is connected to the other mounting components used in the oxygen generator. It has a plurality of nipples.

In addition, the orifice plate 400 has an orifice hole between the plurality of nipples to adjust the pressure or flow rate of the fluid flowing between the plurality of nipples of the upper plate 540 and the plurality of nipples of the lower plate 570. It penetrates and is installed in close contact with the upper plate 540 and the lower plate 570 by using a known means such as ultrasonic welding or screw fastening to maintain the airtightness of the fluid flowing through the orifice hole. At this time, the orifice plate 400 is formed with two or more orifice holes to perform the function of two or more orifices.

As shown in FIG. 3, the upper plate 540 includes a plurality of nipples 541b, 542, 544, 545, 547, 548, and as shown in FIG. 5, the lower plate 570 includes a plurality of nipples 575, 576. That is, the upper plate 540 and the lower plate 570 are connected to the mounting components provided in the oxygen generator through a plurality of nipples (541b, 542, 544, 545, 547, 548, 575, 576).

2, 3 and 5, the nipple 541b is connected to the filtration filter 110, and the nipples 542 and 544 are connected to the first and second adsorption beds 810 and 820. The nipples 575 and 576 may be connected to the air compressor 120. In addition, the oxygen discharge nipple 545 and the nitrogen discharge nipple 547 and 548 may be configured to discharge oxygen and nitrogen to the outside atmosphere, respectively.

Preferably, the upper plate 540 or the lower plate 570 has a flow path (543,546,549,571,572,573,574) through which the fluid passing through the nipples (541b, 542, 544, 545, 547, 548, 575, 576) flows therein, in this case, the orifice plate 400 is characterized in that for adjusting the pressure or flow rate of the fluid passing through the flow path (543,546,549,571,572,573,574).

That is, as shown in FIG. 4, a plurality of orifice holes 411, 412, 413, 414, 415, 416, 417 are penetrated through the flat plate 401 of the orifice plate 400 so as to measure the flow rate and pressure of the fluid flowing between the nipples or the flow paths formed therein. It can be adjusted. In this case, the orifice plate 400 may be formed with through holes 431, 432, 433, 434, and 435 that merely serve to connect the flow paths. For example, the through hole 431 connects the flow path 572 of the lower plate 570 of FIG. 5A and the flow path 549 of the upper plate 540 of FIG. 3B, and the through hole 432 of FIG. 5A The flow path 571 of the lower plate 570 and the flow path 549 of the upper plate 540 of FIG. 3B are connected.

Here, the flow path formed in the upper plate 540 is formed in the groove on the one surface 541 of the upper plate 540 in accordance with the shape of the flow path 546, as shown in Figure 3d and sealed with a flat plate 401 It may be formed, it is possible to use the sealing element 556 of the first sealing member 550 seated in the groove to maintain the airtight of the fluid flowing through the flow path (546). Here, the first sealing member 550 includes sealing elements 553, 556, 559 to maintain the airtight of the flow path (543, 546, 549) as shown in Figure 3c.

Similarly, the flow path formed inside the lower plate 570 may be formed by forming a groove in one surface of the lower plate 570 according to the shape of the flow path as shown in FIG. 4C and sealing it with the orifice plate 400. In order to maintain the airtightness of the fluid flowing through the flow path, the second sealing member 560 seated in the groove may be used. Here, the second sealing member 560 includes sealing elements 561, 562, 563 and 564 to maintain the airtight of the flow paths 571, 572, 573 and 574 as shown in FIG. 5C.

Such internal flow paths may be formed by forming grooves of semi-circular cross-sections in the upper / lower plates 540 and 570 and the orifice plate 400 so as to form a circular cross-sectional flow path, and in close contact with each other. It is not limited.

As described above, the degree of freedom of design is improved by forming nipples according to the shapes and mounting positions of various mounting parts and forming internal flow paths in the upper / lower plates 540 and 570 for connecting the nipples. In this case, the orifice plate 400 may be formed with the above-described through holes 431, 432, 433, 434, 435 to simply connect the flow path without decompression of the fluid, and the upper plate through the orifice plate 400 having the through hole and the orifice hole formed therein. The 540 and the lower plate 570 are connected, and the nipples can be connected to various mounting components.

In addition, the plate-shaped porous orifice module 900 of FIG. 2 may further include a sealing member to maintain the airtightness of the fluid flowing through the orifice holes 411, 412, 413, 414, 415, 416, 417 as shown in FIGS. 2, 3D and 4C. .

That is, as shown in FIG. 2 and FIG. 3D, a first sealing member 550 or an O-ring OR1, OR2, OR3 may be provided between the orifice plate 400 and the upper plate 540. 2 and 4c, a second sealing member 560 or an O-ring OR4 may be provided between the orifice plate 400 and the lower plate 570.

1 and 4, the orifice holes 411, 412, 413, 414, 415, 416, 417 will be described in more detail.

Orifice holes 411, 412, 413, 414, 415, 416, 417 formed in the flat plate 401 of the orifice plate 400 may be formed such that the diameter (d1) of the outer portion is larger than the diameter (d2) of the intermediate portion, as shown in Figure 4b, Figures 4c and It may be to have a constant diameter (d2) smaller than the diameter (d1) of the flow path connected to the orifice hole as in 4d.

1 and 4, some of the nipples 542 and 544 of the plurality of nipples provided in the upper plate 540 or the lower plate 570 may be connected to the suction beds 810 and 820. In this case, the orifice plate 400 is provided with cleaning orifice holes 411 and 412 for adjusting pressure or flow rate to introduce oxygen generated for desorption of the adsorption bed 810 to the opposite adsorption bed 820 when cleaning is performed. It may be, the oxygen discharge orifice hole 413 for adjusting the pressure or flow rate of the high concentration of oxygen discharged from the adsorption bed 810 may be provided. In addition, the oxygen dilution orifice hole 414 may be provided to adjust the pressure and the flow rate of the air supplied through the air compressor 120 to lower the concentration of the discharged oxygen to a predetermined level.

Preferably, some of the nipples 575 and 576 of the plurality of nipples provided in the upper plate 540 or the lower plate 570 may be connected to the air compressor 120. At this time, the orifice plate 400 may be provided with a noise reduction orifice hole 415 to reduce the noise of the oxygen generator 100 by lowering the pressure of the air supplied from the air compressor 120.

As shown in FIG. 6A, the air compressor 120 used in the conventional oxygen generator operates within a high pressure P1 range based on the reference pressure, so that the pulsation time T1 is long, resulting in large noise and vibration. . However, the orifice module 900 of FIG. 2 having the noise reducing orifice hole 415 according to the present invention is decompressed within the low pressure P2 range as in FIG. 6B by reducing the compressed air from the air compressor 120. Since the operation and the pulsation time (T2) are reduced, by properly adjusting the pressure and flow rate changes, the noise and vibration can be greatly improved. That is, the compressed air passing through the noise reduction orifice hole 415 slightly decreases the flow rate but the pulsation is reduced, so that the compressed air is uniformly supplied and the noise and vibration due to the pulsation are improved.

In addition, the orifice plate 400 may be provided with nitrogen noise reduction orifice holes 416 and 417 to reduce the noise by adjusting the pressure and flow rate of the nitrogen discharged.

These orifice holes may be added or subtracted according to design specifications. For example, nitrogen discharge nipples 547 and 548 formed on the rear surface of the upper plate 540 without installing nitrogen noise reducing orifice holes 416 and 417 (see FIG. 3B). This penetrating through hole may be formed.

Meanwhile, the plate-type porous orifice module 900 for an oxygen generator according to the present invention may allow a nipple connected to various mounting parts mounted on the oxygen generator to be directly mounted on the orifice plate 400. In this case, both surfaces of the orifice plate 400 is provided with a plurality of nipples connected to the mounting parts used in the oxygen generator, the plurality of nipples to adjust the pressure or flow rate of the fluid flowing between the nipples An orifice hole may be formed between the nipples. That is, the nipple N of FIG. 4D may be provided directly on the orifice plate 400 instead of the upper plate 540 and the lower plate 570.

As described above, according to the present invention, it is possible to perform a function of a plurality of orifices with one orifice plate, thereby reducing the number of parts and simplifying the internal structure of the oxygen generator, thereby obtaining an effect of easy assembly and repair.

In addition, by using the orifice holes that have been pre-sized according to the design specifications, it is not necessary to adjust the pressure of the fluid passing through the orifice, thereby reducing the defect rate of the product and realizing a stable system. Excellent effect can be obtained.

While the invention has been shown and described with respect to particular embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as set forth in the claims below. I want to make it clear.

Particularly, in the present specification, for convenience of description, the PSA type oxygen generator is illustrated and described as an example, but the plate-type porous orifice module for oxygen generator according to the present invention is widely used in other types of oxygen generators such as membrane type and electrolysis type. Can be applied.

Claims (6)

An upper plate having a plurality of nipples connected to the mounting parts used for the oxygen generator; A lower plate having a plurality of nipples connected to other mounting parts used for the oxygen generator; And An orifice hole is formed between the plurality of nipples to adjust the pressure or flow rate of the fluid flowing between the plurality of nipples of the upper plate and the plurality of nipples of the lower plate, and maintains airtightness of the fluid flowing through the orifice hole. An orifice plate installed in close contact with the upper plate and the lower plate to be in close contact; Including; The orifice plate is a plate-type porous orifice module for the oxygen generator to perform the function of two or more orifices through two or more orifice holes. The method of claim 1, The upper plate or the lower plate is formed therein a flow path for the fluid passing through the nipple, The orifice plate is a plate-type porous orifice module for the oxygen generator, characterized in that for adjusting the pressure or flow rate of the fluid passing through the flow path. The method of claim 1, A sealing member installed between the orifice plate and the upper plate or between the orifice plate and the lower plate to maintain the airtightness of the fluid flowing through the orifice hole; Plate-type porous orifice module for the oxygen generator further comprises. The method according to any one of claims 1 to 3, Some of the plurality of nipples provided in the upper plate or the lower plate is connected to the suction bed, The orifice plate is a cleaning orifice hole for adjusting the pressure or flow rate of the fluid flowing into the adsorption bed when the cleaning is performed in the adsorption bed, and by adjusting the pressure or flow rate of the high concentration of oxygen discharged from the adsorption bed to discharge to the outside atmosphere A plate-type porous orifice module for an oxygen generator, comprising an oxygen discharge orifice hole. The method according to any one of claims 1 to 3, Some of the plurality of nipples provided in the upper plate or the lower plate is connected to the air compressor, The orifice plate is a plate-type porous orifice module for an oxygen generator, characterized in that it comprises a noise reduction orifice hole for removing noise by reducing the compressed air supplied from the air compressor. One surface is provided with a plurality of nipples connected to the mounting components used for the oxygen generator, and the other surface is provided with a plurality of nipples connected with the other mounting components used for the oxygen generator. An orifice plate through which an orifice hole is formed between the plurality of nipples to adjust a pressure or a flow rate of the fluid flowing between the plurality of nipples; Including; The orifice plate is a plate-type porous orifice module for the oxygen generator to perform the function of two or more orifices through two or more orifice holes.

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