KR101834467B1

KR101834467B1 - Filtering structure of fluid for distribution efficiency

Info

Publication number: KR101834467B1
Application number: KR1020160033099A
Authority: KR
Inventors: 박중윤; 이상호; 박진우; 정의욱
Original assignee: 금오공과대학교 산학협력단; 이상호; 박진우
Priority date: 2016-03-21
Filing date: 2016-03-21
Publication date: 2018-03-05
Also published as: KR20170109253A

Abstract

The fluid filtering structure for improving the diffusion efficiency according to the present invention includes at least an inlet and an outlet through which a fluid flows and flows and at least one filter for filtering the fluid using filtering means provided therein A filtering unit; And a fluid distribution module disposed adjacent to at least one of the inlet and outlet in the filtering section to distribute the fluid such that the fluid contacts the filtering means in an equilibrium or a constant pressure state to increase the diffusion efficiency, The fluid distribution module includes: a plurality of distribution plates disposed perpendicular to the longitudinal direction of the filtering unit; And a diffusion unit coupled between the plurality of distribution plates so that the distribution plates are spaced apart from each other, and diffusing the fluid in a radial direction of the filtering unit.
The fluid filtering structure for improving the diffusion efficiency according to the present invention is characterized in that the fluid introduced into the inlet located at the center of the cylindrical filtering portion is diffused and distributed in the radial direction within the filtering portion and then contacted with the filtering means, While a fluid having a pulsating pressure within a certain range is introduced into the buffer space, it can be diffused in the buffer space and radially distributed within the filtering unit to be brought into contact with the filtering means in a pressure and a static pressure state, The yield can be improved.

Description

TECHNICAL FIELD [0001] The present invention relates to a fluid filtering structure for improving diffusion efficiency,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid filtering structure for improving diffusion efficiency, and more particularly, to a fluid filtering structure for improving diffusion efficiency, which improves the diffusion efficiency of a fluid so that a contact area between a fluid, And more particularly to a fluid filtering structure.

Various filtering devices such as a nitrogen generator for generating nitrogen gas by filtering oxygen, a water treatment system for filtering impurities from contaminated water, and an air cleaning system for removing contaminants from contaminated air include a filtering unit provided with filtering means therein . If the diffusion or the distribution of the fluid is not uniformly performed in the filtering part after the fluid is drawn into the inlet of the filtering part, the contact area (or the filtration area) with the filtering device is reduced and the filtration efficiency There is a problem.

In addition, the fluid introduced into the filtering section does not always maintain a constant pressure, and is often pulsated within a certain range. However, such a fluid in a non-equalized or non-constant pressure state has a problem in that the diffusion efficiency is reduced.

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned problems, and it is an object of the present invention to provide a filtration device in which a fluid introduced into an inlet positioned at the center of a filtering part is diffused and distributed in a radial direction in a filtering part, The fluid is diffused into the buffer space and distributed in the radial direction within the filtering part and can be brought into contact with the filtering means in the pressure equalized and the constant pressure state so that the diffusion efficiency is improved, And to provide a fluid filtering structure for improving diffusion efficiency that can improve filtration yield.

According to an aspect of the present invention, there is provided a fluid filtering structure for improving diffusion efficiency, comprising: an inlet and an outlet through which fluid flows in and out, respectively; At least one filtering unit for filtering the fluid; And a fluid distribution module disposed adjacent to at least one of the inlet and outlet in the filtering section to distribute the fluid so that the fluid contacts the filtering means in a pressure equalized or static pressure state to increase the diffusion efficiency, The fluid distribution module includes: a plurality of distribution plates disposed perpendicular to the longitudinal direction of the filtering unit; And a diffusion unit coupled between the plurality of distribution plates so that the distribution plates are spaced apart from each other, and diffusing the fluid in a radial direction of the filtering unit.

The fluid distribution module may be spaced apart by a buffer section in which the fluid flowing into the inlet flows and is buffered.

And a tapered portion having an inner diameter gradually expanded to assist the inflow of the fluid may be provided inside the filtering portion connected to the inlet.

Wherein the plurality of distribution plates are first and second distribution plates which are arranged in parallel to each other and in which a plurality of fluid passing holes are regularly formed on the surface of the plate, and at least one of the first distribution plate and the second distribution plate The hole may be gradually expanded toward the plate surface to form a fluid outlet guide for guiding the outflow of the fluid discharged from the fluid distribution module.

Wherein the diffuser comprises: a cylindrical net disposed between the first and second distribution plates and having opposite ends coupled to the first and second distribution plates, respectively, to separate the first and second distribution plates from each other; And a filler filling the inside of the net.

The filling material is cotton. A nonwoven fabric or a woven fabric.

The fluid filtering structure for improving the diffusion efficiency according to the present invention is characterized in that the fluid introduced into the inlet located at the center of the cylindrical filtering portion is diffused and distributed in the radial direction within the filtering portion and then contacted with the filtering means, The fluid can be diffused into the buffer space and distributed in the radial direction within the filtering part and can be brought into contact with the filtering means in the equilibrium and in the static pressure state to improve the diffusion efficiency, So that the filtration yield can be improved.

1 is a schematic view illustrating a filtering unit and a fluid distribution module in a fluid filtering structure for improving diffusion efficiency according to an embodiment of the present invention.
2 is a schematic exploded perspective view of a fluid distribution module in a fluid filtering structure for improving diffusion efficiency according to an embodiment of the present invention.
3 is a view showing a result of flow analysis for a filtering unit (i.e., a pressure vessel filled with CMS) of a conventional nitrogen generating apparatus.
4 is a graph showing a result of a flow analysis for a filtering unit of a nitrogen generating apparatus to which a fluid filtering structure for improving diffusion efficiency according to the present invention is applied.
5 is a conceptual diagram for explaining examples of a method of generating nitrogen gas using a fluid filtering structure for improving diffusion efficiency according to an embodiment of the present invention.
6 is a configuration diagram of a nitrogen generating apparatus to which a fluid filtering structure according to an embodiment of the present invention is applied.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a fluid filtering structure for improving diffusion efficiency according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view illustrating a filtering unit and a fluid distribution module in a fluid filtering structure for improving diffusion efficiency according to an embodiment of the present invention. FIG. 2 is a cross- Lt; / RTI > is a schematic exploded perspective view of a fluid distribution module in the structure of FIG.

A tapered part 150 may be provided inside the filtering part 111 connected to the inlet 10 to gradually increase the inner diameter of the filtering part 111 to assist the inflow of the fluid. When the fluid is drawn into the inlet 10 located at the center of the cylindrical filtering part 111 through the tapered part 150, diffusion and distribution are primarily performed in the radial direction.

The fluid distribution module 120 includes a plurality of distribution plates 121 and 126 disposed perpendicularly to the longitudinal direction of the filtering unit 111 and a plurality of distribution plates 121 and 126, And a diffusion unit 123 coupled between the filter units 121 and 126 to diffuse the fluid in the radial direction of the filtering unit 111.

The plurality of distribution plates (121, 126) are first and second distribution plates (121, 126) arranged parallel to each other and having a plurality of fluid passing holes regularly formed on the surface of the first distribution plate 121 may be formed with a fluid outflow guide part 122 which gradually expands toward the plate surface and guides the outflow of the fluid discharged from the fluid distribution module 120. [ The expanded structure of the fluid passage hole (i.e., the tapered structure) allows the fluid to easily diffuse in the radial direction of the filtering portion 111.

In this embodiment, the fluid distribution hole 121 is formed on the bottom surface of the first distribution plate 121 and is inclined toward the upper surface, so that the fluid outlet guide portion 122 can be formed in the entire thickness direction. The second distribution plate 126 has a fluid passage hole 127 regularly formed on its surface. Meanwhile, in another embodiment of the present invention, the fluid passing hole 127 of the first distribution plate 126 may have a double tapered structure in which the fluid passing hole of the first distribution plate 121 is gradually expanded toward the plate surface .

The diffusion unit 123 is disposed between the first and second distribution plates 121 and 126 and has both ends thereof coupled to the first and second distribution plates 121 and 126, A cylindrical net 124 separating the distribution plates 121 and 126 from each other and a filler 125 filled in the net 124.

The net body 124 serves to support the first and second distribution plates 121 and 126 while supporting the inner filler. In another embodiment of the present invention, the filler 125 may be filled between the first and second distribution plates 121 and 126 without being contained in the net 124.

The filler 125 may be formed of any one selected from cotton, nonwoven fabric, and woven fabric, and dispersion / pressure equalization of the fluid may be performed by the filler 125. On the other hand, the filler material 125 may be a nonwoven fabric such as a cotton or nonwoven fabric, a fabric, or a combination thereof. However, the scope of the present invention is not limited thereto.

The fluid distribution module 120 having such a configuration may be mounted inside the filtering unit 111 separated from the inlet 10 by a predetermined distance. Referring to FIG. 1, the fluid introduced into the inlet 10 may be spaced apart by a buffer section (B) which flows and is buffered. The buffer section B refers to a separation interval from the portion where the body portion of the filtering section 111 starts to the fluid distribution module 120 through the inclined surface under the filtering section 111.

By the configuration and arrangement of the fluid distribution module 120, the pressure between the center portion and the edge region of the filtering portion 111 in the adjacent section of the inlet 10 is made uniform, so that the fluid filtering efficiency by the filtering means is increased. That is, since the fluid drawn into the inlet 10 located at the center of the cylindrical filtering part 111 is diffused and distributed in the radial direction of the filtering part 111 and then contacted with the filtering device, the contact area (or filtration area) So that the filtering efficiency can be improved.

The improvement of the filtering efficiency in this specification means that the nitrogen generating efficiency of the nitrogen generating apparatus to which the filtering structure according to the present invention is applied is increased and the nitrogen generating efficiency is increased. In the water treating system or the air cleaning system It may mean that the impurity filtering efficiency is increased.

Also, due to the configuration and arrangement of the fluid distribution module 120, even if a fluid having a pulsating pressure is introduced within a certain range, it is diffused into the buffer space B and distributed in the radial direction within the filtering part 111, Can be brought into contact with the filtering means in a state that the filtering efficiency can be improved.

This fluid distribution module 120 may also be mounted to an outlet (not shown) of the filtering section 111. The fluid filtering efficiency through the pressure equalization at the outlet section side can be increased by interaction with the section of the inlet 10 and the effect of discharging the filtered fluid at a uniform pressure may be obtained. A configuration in which the fluid distribution module 120 is mounted on at least one of the inlet 10 and the outlet side to increase the fluid filtering efficiency or to equalize the discharge pressure of the filtered fluid can be achieved by a PSA The present invention can be applied not only to a pressure vessel of a pressure swing adsorption type nitrogen generator but also to a membrane module of a membrane type nitrogen generator.

As described above, the filtering structure according to the present exemplary embodiment can be applied to a fluid filtering structure for improving the fluid distribution and diffusion efficiency in the nitrogen generating device or the nitrogen generating module. However, in addition to the filtering filtering structure and the air cleaning filter system, System. &Lt; / RTI >

When applied to various filter structures as described above, the fluid introduced into the inlet 10 located at the center of the cylindrical filtering portion 111 is diffused and distributed in the radial direction of the filtering portion 111, and then is contacted with the filtering means Even if a fluid having a pulsating pressure within a certain range is introduced into the buffer space B, the fluid is diffused into the buffer space B and radially distributed in the filtering part 111, So that the diffusion efficiency can be improved and the filtration yield can be improved.

FIG. 3 is a view showing a result of flow analysis for a filtering unit (that is, a pressure vessel filled with a CMS (Carbon Molecular Sieve)) of the conventional nitrogen generating apparatus. FIG. FIG. 2 is a view showing a result of flow analysis for a filtering unit of a nitrogen generating apparatus to which a structure is applied. 3 and 4, reference numerals are omitted.

Hereinafter, results of the flow analysis for the filtering unit of the nitrogen generating apparatus having the fluid distribution module 120 according to the present embodiment will be described in detail with reference to FIGS. 3 and 4. FIG.

FIG. 3 shows a flow analysis result of a fluid when a conventional fluid distribution module is not provided as a conventional nitrogen generating device.

On the other hand, the case of FIG. 4 will be described. The fluid flows through the inlet 10 and passes through the tapered portion 150 at the bottom of the filtering portion 111. In this case, the pressure difference between the center portion and the edge of the container cross section decreases and the fluid is distributed Or diffusion may begin. The fluid then passes through the inclined surface beneath the filtering section 111 and a distribution and diffusion process is added while staying in the buffer space B between the beginning of the substantial body of the compression vessel 111 and the fluid distribution module 120 , And a pressure equalization process can also be performed.

Then, as the fluid passes through the fluid distribution module 120, the pressure difference between the center and the edge of the container cross section is further reduced, and then the fluid is supplied to the filtering section 111 as filtering means (filled CMS in this embodiment) do. Referring to FIG. 4, it can be seen that the fluid drawn from the inlet 10 is distributed and diffused by the fluid distribution module 120 and then introduced into the filtering part 111, It can be seen that the filtering means pass through forming a substantially uniform wired layer.

As a result, the fluid is diffused and distributed in the radial direction within the filtering section by the fluid distribution module 120, and then contacted with the filtering means, so that the contact area (or filtration area) is increased, and the nitrogen gas generating efficiency can be improved.

In addition, even if a fluid having a pulsating pressure within a certain range is introduced into the buffer space, the fluid can be diffused into the buffer space and can be retained so that the pressure becomes uniform. Then, the fluid is distributed in the radial direction within the filtering unit, The generation efficiency can be improved.

5 is a conceptual diagram for explaining examples of a method of generating nitrogen gas from a fluid in a fluid filtering structure for improving diffusion efficiency according to an embodiment of the present invention.

5A is a conceptual diagram for explaining a nitrogen generating method using CMS as a filtering means. Referring to FIG. 5A, when the CMS is filled in the filtering unit, the fluid is drawn in (that is, introduced), and the oxygen gas is adsorbed to the CMS while the CMS passes through the filtering unit. And finally, nitrogen gas is generated.

5 (b) is a conceptual diagram for explaining a nitrogen generating method using a membrane module. Referring to FIG. 5 (b), it can be seen that nitrogen gas is generated in the pressure gas in which the fluid is introduced into the membrane module, by the principle of permeation of gas components such as nitrogen gas, oxygen gas and water vapor.

As described above, the nitrogen gas can be generated by using any one of PSA (Pressure Swing Adsorption) method using a CMS (Carbon Molecular Sieve) or Membrane module method. Meanwhile, the method of generating nitrogen gas from a fluid in the nitrogen generating apparatus according to the present invention is not limited to the above-described examples.

When the fluid filtering structure according to the present invention, which increases the fluid filtering efficiency or uniformizes the discharge pressure of the filtered fluid, is applied to the PSA system and the membrane system shown in FIG. 5, the contact area (or the filtration area) The efficiency of generating nitrogen gas can be increased and the efficiency of nitrogen gas generation can be improved by uniforming the pressure of the fluid while staying in the buffer space.

6 is a configuration diagram of a nitrogen generating apparatus to which a fluid filtering structure according to an embodiment of the present invention is applied.

The nitrogen generating apparatus 110 includes a first filtering unit 111 (i.e., a pressure vessel) filled with CMS, a second filtering unit 112, a inlet valve group 113, a outlet valve group 114, (115), and a buffer tank (116). It is needless to say that the elements of the nitrogen generating apparatus 110 shown in FIG. 6 are not essential, and the nitrogen generating apparatus 110 may have more or fewer elements than those of the nitrogen generating apparatus 110 shown in FIG.

The first and second filtering units 111 and 112 are connected in parallel with each other to complementarily perform oxygen adsorption using the packed filtering unit and regeneration operation of the packed oxygen adsorbent. The inlet valve group 113 is provided with an inlet function for the first and second filtering units 111 and 112 and an exhaust function for the first and second filtering units 111 and 112 according to the operation states of the first and second filtering units 111 and 112. [ Function, and an equalization function.

The outgoing valve group 114 may include a nitrogen discharge function and a balancing function for the first and second filtering units 111 and 112 according to the operation states of the first and second filtering units 111 and 112 Can be performed. The fine equilibrium path 115 connects the first and second filtering units 111 and 112 to perform a fine balancing operation regardless of the operating states of the first and second filtering units 111 and 112 do.

When the fluid filtering structure according to the present invention for uniforming the discharge pressure of the fluid to the first and second filtering parts 111 and 112 is applied, the contact area (or filtration area) between the fluid and the filtering device is increased, The generation efficiency can be increased, and the fluid can be stagnated while being diffused into the buffer space, and the pressure can be uniformized, thereby improving the nitrogen gas generation efficiency.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. It will also be appreciated that many modifications and variations will be apparent to those skilled in the art without departing from the scope of the invention.

10: inlet 110: nitrogen generating module
120: fluid distribution module B: buffer section
121: first distribution plate 122: fluid outlet guide
123: diffusion portion 124:
125: filler material 126: second distribution plate
127: fluid passage hole 150: tapered portion

Claims

At least one filtering unit for filtering the fluid using filtering means provided therein and an inlet and an outlet for the fluid to flow in and out, respectively; And
And a fluid distribution module disposed adjacent to at least one of the inlet and outlet in the filtering section to distribute the fluid such that the fluid contacts the filtering means in an equilibrium or a constant pressure state to increase the diffusion efficiency,
The fluid distribution module includes:
A plurality of distribution plates disposed perpendicular to the longitudinal direction of the filtering unit; And
And a diffusion unit coupled between the plurality of distribution plates to diffuse the fluid in the radial direction of the filtering unit so that the distribution plates can be separated from each other,
Wherein the plurality of distribution plates are first and second distribution plates which are arranged in parallel to each other and in which a plurality of fluid passing holes are regularly formed on a plate surface,
And the fluid distribution hole is formed in at least one of the first distribution plate and the second distribution plate so as to gradually expand toward the plate surface, and a fluid outflow guide portion for guiding the outflow of the fluid discharged from the fluid distribution module is formed Fluid Filtering Structure for Improving Diffusion Efficiency.

The method according to claim 1,
Wherein the fluid distribution module is disposed to be spaced apart from a buffer section in which the fluid flowing into the inlet flows and is buffered.

delete

The method according to claim 1,
Wherein,
A cylindrical net disposed between the first and second distribution plates and having opposite ends coupled to the first and second distribution plates to separate the first and second distribution plates from each other; And
And a filling material filling the inside of the netting.

5. The method of claim 4,
The filling material is cotton. Wherein the nonwoven fabric or the woven fabric is made of one selected from the group consisting of a nonwoven fabric and a woven fabric.

The method according to claim 1,
And a tapered portion having an inner diameter gradually expanded to assist inflow of the fluid is provided inside the filtering portion connected to the inlet.