KR101657045B1 - Fluid separating device - Google Patents

Abstract

Provided is a fluid separating device comprising a fluid separating pipe. The fluid separating device comprises: a fluid separating pipe which is extended to the one direction, and of which a cross section shape has a closed curve shape, wherein the width of the first direction is bigger than the width of the second direction; and a spacing material which is arranged inside the fluid separating pipe in order that the width direction faces the first direction.

Description

Fluid separating device

The present invention relates to a fluid separation apparatus, and more particularly, to a fluid separation apparatus including a fluid separation tube.

Global warming, which is currently the subject of global interest, plays a major role in the greenhouse effect by carbon dioxide and methane gas. This warming not only disturbs the ecosystem but also has a great influence on the social life of the human being, so efforts to reduce the release of greenhouse gases into the atmosphere have been made in various ways.

Carbon dioxide has recently become one of the most noteworthy greenhouse gases. Carbon dioxide can be produced in sewage treatment plants, wastewater treatment plants, landfills, and the like in a large amount in a thermal power plant or a steel mill, in addition to being generated at the time of waste combustion. Therefore, a technique for separating and removing only carbon dioxide from waste gas is being studied. In addition to carbon dioxide, the interest in hydrogen fuel has been amplified, and the technology of separating hydrogen gas has also attracted much attention. In addition, since purely separated oxygen and nitrogen can be utilized in various fields, research on the separation method is continuing. In the future, as technologies for the utilization of specific gases or liquids develop, it is expected that separation techniques for a wider range of fluids will be required.

Separation of specific fluids is difficult to apply in industry simply by establishing separation theory. For example, the carbon dioxide separation technology has been proposed for a long time, such as absorption method, adsorption method, seawater cooling method, or membrane separation method. However, for practical reasons such as the necessity of enormous energy, side effects, It is very minimal.

However, since the membrane separation method uses relatively low energy compared to other methods, there is an evaluation that it is suitable for commercialization. The direction that has been studied so far in the membrane separation method is mainly to improve the separation efficiency of the membrane. The primary goal is to develop a small size (e.g., 1 inch X 1 inch) separator that can exhibit a separation efficiency of greater than 90% in the laboratory. Large-scale and commercialization are considered as next tasks.

In order to achieve a separation efficiency of more than 90% in the laboratory, many researchers have attempted to make the membrane thinner and to set the pressure difference between the inside and outside of the membrane higher. However, the thinner the thickness and the higher the pressure, the weaker the durability of the separator. Therefore, some researchers are also studying the materials of durable membranes even under these conditions.

However, even if a high-efficiency membrane is developed at the laboratory level as described above, commercialization thereof is a separate problem. First, it is very difficult to produce a thin film membrane in large quantities, and since expensive raw materials must be used, the production cost is greatly increased. Further, in order to apply a thin film membrane to a large-sized equipment, a large number of separators must be assembled, thereby increasing assembly time and assembly cost. Also, the use of high pressure for high efficiency increases the processing cost. Although it is theoretically possible to separate it, if production and processing costs are excessive, realistic commercialization is impossible.

Therefore, it is necessary to develop a fluid separation technology applicable to a commercial scale, which has a low processing cost and a cost-effective separation efficiency.

SUMMARY OF THE INVENTION The present invention provides a fluid separation apparatus with improved separation efficiency.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method of manufacturing the same.

According to an aspect of the present invention, there is provided a fluid separation apparatus comprising: a fluid separation tube extending in one direction and having a closed curve shape whose cross-sectional shape is larger than a width of a second direction in a first direction; And a spacing member disposed inside the fluid separation tube so that the direction corresponds to the first direction.

Here, the sectional shape of the fluid separation pipe may be an ellipse.

The width in the first direction may be 1/4 to 49/100 of the outer circumferential length of the fluid separation pipe.

The width of the spacers may be 0.5 to 1 times the inner diameter of the fluid separation tube in the first direction.

The spacers may include a plurality of openings through which fluids may communicate in the second direction.

The spacers may have a mesh structure. Furthermore, the spacers may have a twisted net structure.

The fluid separation passage may define a fluid passage in the extending direction.

The fluid separation device may further comprise a chamber, in which the fluid separation pipe is disposed, inside the chamber.

The chamber may include a fluid inlet, a first fluid outlet, and a second fluid outlet.

The fluid separation pipe includes an open end, and one end of the fluid separation pipe may be spatially connected to the first fluid discharge port, or may be exposed to the outside of the chamber through the first fluid discharge port.

The fluid inlet and the second fluid outlet may not be spatially connected to the fluid separation pipe.

The fluid separation tube may include an open other end.

The other end of the fluid separation pipe may be spatially connected to the fluid input port, or may be exposed to the outside of the chamber through the fluid input port, and the second fluid outlet may not be spatially connected to the fluid separation pipe.

The fluid separation pipe may be made of a flexible material.

The fluid separation tube may comprise a silicone rubber.

The spacing member may be made of a material having a higher strength than the fluid separation pipe, and the bending strength in the width direction of the spacers may be larger than the restoring force of the fluid separation pipe.

The details of other embodiments are included in the detailed description and drawings.

According to the fluid separation pipe and the fluid separation device according to the embodiments of the present invention, since the cross section of the fluid separation pipe has a distorted shape, the separation efficiency can be improved. Further, since the spacing member is disposed inside the fluid separation pipe, a fluid movement path inside the fluid separation pipe can be secured, and deterioration in separation efficiency due to close contact with the fluid separation pipe can be prevented.

The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the specification.

1 is a schematic view of a fluid separation apparatus according to an embodiment of the present invention.
2 is a schematic view of a fluid separation apparatus according to another embodiment of the present invention.
3 is a perspective view of a fluid separation tube according to an embodiment of the present invention.
4 is a cross-sectional view taken along line IV-IV 'of FIG.
5 is a schematic view for explaining a relative occupation space of a circle and an ellipse.
6 and 7 are cross-sectional views of a fluid separation tube according to various embodiments of the present invention.
8 is a perspective view showing a shape in which a fluid separation pipe and a spacing member inserted therein are inserted.
9 is a plan view of the spacer of Fig.
10 is a cross-sectional view taken along the line X-X 'in FIG.
11 is a perspective view showing a process of inserting a spacing member into a fluid separation tube.
12 is a schematic view of a fluid separation apparatus according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

It is to be understood that elements or layers are referred to as being "on " other elements or layers, including both intervening layers or other elements directly on or in between. Like reference numerals refer to like elements throughout the specification.

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

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

1 is a schematic view of a fluid separation apparatus according to an embodiment of the present invention. Referring to Fig. 1, the fluid separation device 1 is a device used for separating a specific fluid from a fluid mixture MF.

The fluid can be a gas or a liquid. The fluid mixture MF comprises a plurality of different fluids. For example, the fluid mixture MF may be a fossil fuel power plant or plant exhaust gas, automobile exhaust gas, by-product gas, waste landfill gas, wastewater, and the like.

The plurality of gases may be mixed completely uniformly, but not limited thereto. For example, only a first fluid may be present in a specific region and only a second fluid may be present in another specific region in a space where a fluid mixture including a first fluid and a second fluid is disposed. Also, the content of the first fluid at a particular site may be greater than the content of the first fluid at another particular site.

Separation of a specific fluid not only completely separates a specific fluid from the fluid mixture MF but also outputs (generates) a fluid mixture F1 and F2 having a specific fluid content increased from the input (provided) fluid mixture MF, And to do so. The case where the input fluid mixture MF contains nitrogen and carbon dioxide and the content ratio thereof is 3: 1 will be described as an example. When the output fluids F1 and F2 are 100% carbon dioxide or the output fluid mixture F1 , F2) is less than 3: 1, it is interpreted that the carbon dioxide is separated. If the output fluids F1 and F2 are 100% nitrogen or the nitrogen and carbon dioxide content ratios of the output fluid mixture F1 and F2 are greater than 3: 1, it is interpreted that nitrogen is separated. In addition, the higher the specific fluid content is, the higher the efficiency of the specific fluid separation.

Examples of the fluid to be separated may be other than the above-mentioned carbon dioxide or nitrogen. (N-C4H10), carbon disulfide (CS2), carbon monoxide, ethane, ethylene, helium, hexane (n-C6H14), hydrogen, hydrogen sulphide, methane, methanol, nitrogen monoxide , Nitrogen dioxide, nitrous oxide (N 2 O), octane, oxygen, pentane, propane, sulfur dioxide, toluene, water vapor, and the like.

The fluid separation apparatus 1 includes a chamber 20 and a fluid separation pipe 10 disposed inside the chamber 20. [

The fluid separation pipe 10 is formed in a tube shape. The inside 10s1 of the fluid separation pipe 10 and the outside 10s2 of the fluid separation pipe 10 are physically separated with reference to the fluid separation pipe wall 10w. At least a part of the fluid can pass through the fluid separation pipe wall 10w and communicate with the inner and outer portions 10s1 and 10s2 of the fluid separation pipe 10 and this is used for the specific fluid separation. A spacing member (see 150 'in FIG. 8) is disposed in the interior 10s1 of the fluid separation pipe 10. A detailed description of the fluid separation pipe 10 and the spacing member will be described later.

The chamber 20 provides a limited space. The space inside the chamber 20 is physically separated from the space outside the chamber 20. The chamber 20 spatially limits the movement of the fluid supplied therein. Further, the chamber 20 can control various process parameters such as the temperature, pressure, humidity, etc. inside the chamber 20 differently from the outside of the chamber 20 independently. The limited space of the chamber 20 does not necessarily mean only an enclosed space, but may include an open space in communication with the outside.

For example, the chamber 20 may include at least three fluid outlets 21, 22, 25. In an exemplary embodiment, the chamber 20 includes a fluid inlet 25, a first fluid outlet 21, and a second fluid outlet 22.

The first fluid outlet 21 and the second fluid outlet 22 are passages through which the fluid mixture or fluids F1 and F2 are discharged (output) to the outside of the chamber. The fluid separation pipe 10 is spatially connected to the first fluid outlet 21 or is exposed to the outside of the chamber 20 through the first fluid outlet 21 and one end 10E1. The second fluid outlet 22 is not spatially connected to the fluid separation pipe 10.

The fluid inlet 25 is a passage through which the fluid mixture MF is injected (input) into the chamber 20. In one embodiment, the fluid inlet 25 is not spatially connected to the fluid separation tube 10, as shown in FIG. In this case, the fluid mixture MF is injected into the inside of the chamber 20 through the fluid input port 25 and into the outside 10s2 of the fluid separation pipe 10. The fluid components moved into the interior 10s1 of the fluid separation pipe 10 through the pipe wall 10w of the fluid separation pipe 10 in the fluid mixture injected into the chamber 20 are discharged to the first fluid discharge port 21 side F1 '), and the fluid components remaining in the outside 10s2 of the fluid separation pipe 10 can be discharged to the second fluid outlet 22 side (refer to' F2 '). When the fluid mixture MF provided through the fluid input port 25 contains nitrogen and carbon dioxide and the mobility of carbon dioxide through the pipe wall 10w of the fluid separation pipe 10 is higher than nitrogen, The concentration of nitrogen in the outer portion 10s2 is relatively low as the concentration of carbon dioxide is relatively low and the concentration of nitrogen is relatively low as the concentration of carbon dioxide in the inner portion 10s1 of the fluid separation pipe 10 is increased. Accordingly, the fluid mixture F2 having a relatively high nitrogen content is discharged at the second fluid outlet 22, and the fluid mixture F1 having a relatively high content of carbon dioxide is discharged at the first fluid outlet 21 have.

In FIG. 1, one end (10E1) of the fluid separation pipe (10) is opened for spatial connection to the fluid separation pipe (10) and the first fluid discharge port (21) 10E1, and may be made in the longitudinally intermediate portion rather than the end of the fluid separation pipe 10. [ In this case, an opening may be formed in the middle portion of the fluid separation pipe 10, and the end 10E1 may be closed.

1, the other end 10E2 of the fluid separation pipe 10 is disposed inside the chamber 20 and closed. However, the present invention is not limited thereto. For example, when the chamber 20 includes a plurality of first fluid outlets 21, the other end 10E2 of the fluid isolation tube 10 may be opened. The other opened end 10E2 may be spatially connected to another fluid outlet or may be exposed to the outside of the chamber 20 through the fluid outlet.

The fluid mixture F1 and F2 discharged through the first fluid outlet 21 and the second fluid outlet 22 are in a state in which the concentrations of specific components are relatively high, respectively. The fluid mixture F1 or F2 discharged from the first fluid outlet 21 or the second fluid outlet 22 may be returned to the fluid separation device 1 or introduced into another fluid separation device 1 or more Repeatedly, the concentration of a specific component can be further increased. The fluid mixture F1 and F2 discharged from the first fluid outlet 21 and the second fluid outlet 22 may be selectively discarded or stored in a tank or the like and may be used in various other fields as required.

2 is a schematic view of a fluid separation apparatus according to another embodiment of the present invention.

2, the fluid separating apparatus 2 according to the present embodiment is different from the embodiment of FIG. 1 in that the fluid mixture MF is injected into the interior 11s1 of the fluid separation pipe 11. As shown in FIG.

The fluid separation pipe 11 is spatially connected to the first fluid outlet 21 or the first fluid outlet 21 is exposed so that one end 11E1 is exposed to the outside of the chamber 20 and the second fluid outlet 22 Is not spatially connected to the fluid separation pipe 11 is the same as the embodiment of FIG. However, in this embodiment, the fluid separation pipe 11 may be spatially connected to the fluid input port 25, or may be exposed to the outside of the chamber 20 through the fluid input port 25 and the other end 11E2.

The fluid mixture MF is injected into the inside of the fluid separation pipe 11 (11s1) through the fluid input port (25). The fluid components moved into the outer portion 11s2 of the fluid separation pipe 11 through the pipe wall 11w of the fluid separation pipe 11 in the fluid mixture injected into the fluid separation pipe 11 11s1 are discharged to the second fluid discharge port (Refer to 'F2'), and the fluid components remaining in the inside of the fluid separation pipe 11 can be discharged to the first fluid outlet 21 side (refer to 'F1'). When the fluid mixture MF provided through the fluid inlet port 25 contains nitrogen and carbon dioxide and the mobility of carbon dioxide through the pipe wall 11w of the fluid separation pipe 11 is higher than nitrogen, The inner portion 11s1 is relatively low in the concentration of carbon dioxide and the concentration of nitrogen is relatively high in the inner portion 11s1 and the concentration of nitrogen is relatively low in the portion 11s2 outside the fluid separation pipe 11 as the concentration of carbon dioxide increases. Therefore, the fluid mixture having a relatively high nitrogen content is discharged at the first fluid outlet 21, and the fluid mixture having a relatively high content of carbon dioxide can be discharged at the second fluid outlet 22.

Hereinafter, the fluid separation pipe will be described in more detail.

3 is a perspective view of a fluid separation tube according to an embodiment of the present invention. 3, the illustration of the spacers disposed in the interior 100s1 of the fluid separation tube 100 is omitted for convenience of description.

Referring to FIG. 3, the fluid separation pipe 100 may have a shape extending in one direction (Z). The fluid separation pipe 100 may be arranged to extend in the longitudinal direction within the chamber, but may be bent at least once.

One end 100E1 of the fluid separation pipe 100 is opened. One end 100E1 of the opened fluid separation pipe 100 is spatially connected to the first fluid discharge port of the fluid separation device or exposed to the outside of the chamber through the first fluid discharge port. The other end of the fluid separation pipe 100 may be closed or opened.

4 is a cross-sectional view taken along line IV-IV 'of FIG. Referring to FIG. 4, the cross section perpendicular to the extending direction Z of the fluid separation pipe 100 forms a closed curve. The cross section of the fluid separation pipe (100) has a distorted shape compared to the circular shape. The exemplary cross-sectional shape of the fluid separation tube 100 is elliptical.

5 is a schematic view for explaining a relative occupation space of a circle and an ellipse. As shown in Fig. 5, assuming that the outer circumference of the ellipse EL and the outer circumference of the circle CI are the same, the space occupied by the ellipse EL is smaller than that of the circle CI. Therefore, more ellipses (EL) can be arranged in the same space than a circle (CI).

Referring to FIGS. 3 and 4 again, since the movement of the fluid is performed through the pipe wall 100w of the fluid separation pipe 100, the larger the area of the fluid exposed to the pipe wall 100w of the fluid separation pipe 100 The amount of movement of the fluid increases. If the outer circumference of the fluid separation pipe 100 is the same, the flow amount of the fluid is theoretically the same because the cross-sectional shape has the same surface area, whether circular or elliptical. However, if the cross-sectional shape of the fluid separation pipe 100 is elliptical, more number can be arranged in the same space, so that the total surface area can be increased. In addition, even when the same number of fluid separation pipes 100 are used, the elliptical case in the same space can have a larger outer circumference, that is, a larger surface area, as compared with the circular case. Therefore, it can be understood that the elliptical shape has a larger fluid-to-space fluid transfer efficiency than the circular shape.

6 and 7 are cross-sectional views of a fluid separation tube according to various embodiments of the present invention.

The cross-sectional shape of the fluid separation pipe 101 may be a rectangle or a rectangle having rounded corners, or a closed curve having a relatively long length in one direction, as shown in FIG. 6, in addition to the ellipse. In this case as well, the space-to-space fluid transfer efficiency can be improved compared to the circular shape. In addition, the fluid separation pipe 102 may have a corrugated shape in the tubular wall 102w as shown in FIG. If the tubular wall 102w has a corrugated shape, the fluid separation pipe 102 may have a larger surface area than the space provided.

In the following embodiments, the cross-sectional shape of the fluid separation pipe will be described as an example of an oval shape. The direction in which the width of the cross-sectional shape is largest is defined as a first direction (long-diameter direction, X), and the direction perpendicular thereto is defined as a second direction (Y). 4, the width W1 of the fluid separating tube 100 in the first direction X is greater than the width W2 of the second direction Y. As shown in FIG. The width W1 of the fluid separation pipe 100 in the first direction X is theoretically larger than 1/2 of the outer circumferential length of the fluid separation pipe 100 and 1/2 or less of the outer circumferential length of the cross section. In the case where the width W1 of the fluid separation pipe 100 in the first direction X is 1/2 π of the circumferential length of the fluid separation pipe 100, When the width W1 of the tube 100 in the first direction X is 1/2 of the outer circumferential length of the fluid separation tube 100, the tube wall 100w of the fluid separation tube 100 is substantially in close contact . In one embodiment, the ratio of the width W1 of the fluid separation pipe 100 in the first direction X to the outer circumferential length of the fluid separation pipe 100 can be set within a range of 1/4 to 49/100 . If the ratio is 1/4 or more, effective fluid movement efficiency relative to space can be improved. Keeping the ratio at 49/100 or less helps to prevent the inner wall 100s1 of the fluid separation pipe 100 from being closed by completely coming into close contact with the wall 100w of the fluid separation pipe 100.

It is preferable that the outer diameter of the fluid separation pipe 100 when the cross section of the fluid separation pipe 100 is adjusted to be circular is 60 mm to 300 mm. If the outer diameter is smaller than 60 mm, the inner diameter of the tube wall 100w may be too small as compared with the thickness of the tube wall 100w, and the fluid transfer efficiency may be reduced. On the other hand, if the outer diameter of the fluid separation pipe 100 is too large, the surface area of the fluid separation pipe 100 exposed to the fluid relative to the space decreases, and the fluid movement efficiency decreases.

The fluid separation pipe (100) allows communication of a specific fluid. The fluid separation pipe 100 can communicate a specific fluid in both directions between the inside 100s1 and the outside 100s2 of the fluid separation pipe 00. [ The fluid separation pipe 100 includes micropores, so that a specific fluid can be passed through the micropores. However, the present invention is not limited thereto, and various other pipe passage mechanisms may be employed. For example, a specific fluid may be communicated by dissolving, absorbing or adsorbing in the tube wall 100w of the fluid separation tube 100 and moving inside the tube wall 100w, and may be communicated through the fluid separation tube 100 ). The fluid can be diffused by a diffusion method such as Knudsen diffusion, molecular diffusion, surface diffusion, super micropore diffusion, or the like, or by filtration, osmosis, or the like.

The energy required for the specific fluid to pass through the fluid separation pipe 100 is not limited to this, but may be a difference in pressure or fluid concentration between the inner and outer portions 100s1 and 100s2 of the fluid separation pipe 100, kinetic energy of the fluids, Chemical energy or the like that interacts with the separation tube 100, as shown in FIG.

Thicknesses d1 and d2 of the pipe 100w of the fluid separation pipe 100 may be uniform along the periphery, but are not limited thereto. For example, the thicknesses d1 and d2 of the fluid separation tube 100 are generally uniform (refer to 'd1') along the first direction X and relatively small at both ends of the first direction X The thickness d2 thereof may be relatively larger or smaller at the angled portion 101F.

The pipe wall 100w of the fluid separation pipe 100 may be integrally formed along the outer periphery. The term " integral type " means a case where a plurality of separation membranes are joined to form a tube, or a single separation membrane is rolled so that both ends are joined to form a tube, not a portion joined together along the outer periphery . A case in which a tube is formed from the beginning by a method such as extrusion or the like is integrally formed.

The average thickness of the fluid separation pipe 100 (100w) is related to the manufacturing method of the fluid separation pipe (100). As described above, the fluid separation pipe 100 can be manufactured by an extrusion method that facilitates mass production. For example, when a polymer material such as silicone rubber is manufactured into a tubular shape by an extrusion method, an average thickness of 0.1 mm or more is required for easy production. If the average thickness is 0.4 mm or more, commercial mass production is also possible. On the other hand, the larger the average thickness of the pipe wall 100w of the fluid separation pipe 100 is, the longer the moving distance of the fluid becomes, thereby deteriorating the separation efficiency. If the average thickness of the pipe wall (w) of the fluid separation pipe (100) is more than 2 mm, not only the fluid mobility in the fluid separation device using low energy is drastically lowered but also the fluid contact with the surface of the fluid separation pipe And the fluid separation efficiency is lowered. Therefore, the average thickness of the fluid separation pipe 100 is preferably selected within the range of 0.1 mm to 2 mm, or 0.4 mm to 2 mm.

The fluid separation pipe 100 may include an inorganic material such as a polymer material such as cellulose acetate, polysulfone, silicone rubber and the like, silica-based ceramics, silica-based glass, alumina-based ceramics, stainless steel porous body, titanium porous body, have. Selection of the material constituting the fluid separation (100) pipe can be considered not only in the kind of the mixed fluid and the object and fluid to be separated but also in the ease of production method, possibility of mass production, durability and the like. In general, polymer materials are relatively easy to manufacture than inorganic materials. For example, in the case of silicone rubber, it is easy to make a desired shape by an extrusion method, and mass production is also easy. Although the selection ratio of carbon dioxide and nitrogen is about 3: 1 or more, and the ratio of 5: 1 or more is not difficult to manufacture, the silicon rubber is selectively separated from the mixture gas of carbon dioxide and nitrogen . ≪ / RTI >

The fluid separation pipe 100 may be made of a flexible material. If the constituent material of the fluid separation pipe 100 is flexible, it is easy to bend and can be easily installed in various shapes. Further, the fluid separation pipe 100 may be made of a material having elasticity and elasticity. When the fluid separating tube 100 has elasticity and elasticity, when the spacing member (150 'in FIG. 8) is inserted into the inside of the fluid separation tube 100, the spacing member 100 is stretched in the width direction of the spacing member, The flow of the spacers can be suppressed. The silicone rubber has all of the above properties and can be an excellent fluid separation pipe (100) material.

The fluid separation pipe 100 may further include a nanoceramic material in addition to the above-described constituent materials. The nanoceramic material can enhance the strength of the fluid separation pipe 100 and improve the affinity of a specific fluid.

Fe-based, Pd-based, Ti-based, and Al-based oxides as nanoceramic materials are carbon dioxide-friendly materials and can be applied to fluid separation pipes for separating carbon dioxide. For example, any one or a mixture selected from among Fe2O3, TiO2, PdO, Al2O3, MgO, NiO, Y2O3, SiO2, ZrO2 and Zeolite may be applied as the nano-ceramic material.

The nanoceramic material may be used in an amount of 0.001 to 10 wt% based on the total weight of the polymer material such as silicone rubber and the like.

The nanoceramic material may be provided in the form of a mixture with a polymeric material such as a silicone rubber or the like. For example, the fluid separation pipe 100 can be manufactured by extruding a mixture of the silicone rubber and the nanoceramic material. In this case, the nanoceramic material will be disposed inside the polymer material.

The nanoceramic material may be provided in the form of a coating layer. For example, a polymer material may be extruded to produce a tube shape, and then the tube may be dipped in a suspension diluted with the nanoceramic powder to coat the tube. Alternatively, the suspension may be coated on the tube by spray coating, flow coating, roll coating, or the like, or the nanoceramic material may be directly deposited on the tube to coat the suspension.

The nano-ceramic coating layer may be formed only on the inner wall of the tube, only on the outer wall, or on both the inner and outer walls. The formation position of the nano-ceramic coating layer may be appropriately selected depending on the space for introducing the fluid mixture, ease of manufacture, and the like. For example, when a mixture of carbon dioxide and nitrogen is supplied to the outside (100s2) of the fluid separation pipe 100, it is advantageous to selectively remove carbon dioxide by forming a nanoceramic coating layer having high carbon dioxide affinity on the outer wall of the tube. However, the present invention is not limited thereto, and it is also possible to coat the nanoceramic material on the inner and outer walls of the tube in consideration of the separation efficiency and ease of manufacture.

A plurality of fluid separation pipes 100 may be disposed inside the chamber. Each of the fluid separation pipes 100 may be arranged close to each other along the second direction Y. [ The longitudinal direction of the closely disposed fluid separation pipes 100 may be substantially parallel to each other. The width of the fluid separation pipe 100 adjacent to the fluid separation pipe 100 in the second direction Y is equal to or greater than the thickness of the pipe wall 100w of the fluid separation pipe 100 and the maximum width W1 of the fluid separation pipe 100, ≪ / RTI > For example, the spacing of adjacent fluid separation pipes 100 may range from 0.1 mm to 500 mm. When the interval between adjacent fluid separation pipes 100 is secured to be equal to or greater than 0.1 mm, it is prevented that the effective surface area of the fluid separation pipe 100 communicating with the fluid is reduced due to mutual close contact between adjacent fluid separation pipes 100 . By setting the interval of the adjacent fluid separation pipes 100 to 500 mm or less, the area in contact with the surface of the fluid separation pipe 100 in the limited space of the chamber can be sufficiently increased.

The plurality of fluid separation pipes 100 may form one row along the second direction Y. [ It is also possible that a plurality of rows of fluid separation pipes 100 are arranged in the row direction inside the chamber.

8 is a perspective view showing a shape in which a fluid separation pipe and a spacing member inserted therein are inserted. 9 is a plan view of the spacer of Fig. 10 is a cross-sectional view taken along the line X-X 'in FIG.

Referring to FIGS. 8 to 10, spacers 150 are disposed in the interior 100s1 of the fluid separation pipe 100. FIG. The spacers 150 are disposed inside the fluid separation pipe 100 so as to prevent the pipe wall 100w of the fluid separation pipe 100 from being closely contacted and closed.

The spacers 150 may have the same length as the fluid separation pipe 100 and may be disposed over the entire extending direction of the fluid separation pipe 100. However, the present invention is not limited thereto, and the spacers 150 may be disposed at a portion, for example, the central portion of the fluid separation pipe 100, and may not be disposed at one end or both ends of the fluid separation pipe 100. Further, a plurality of spacers 150 may be disposed in the longitudinal direction. The plurality of spacers 150 may be spaced apart from each other.

The width direction W3 of the spacers 150 corresponds to the first direction X of the fluid separation tube 100 and the thickness direction of the spacers 150 corresponds to the width direction Y of the fluid separation tube 100 in the second direction Y ). ≪ / RTI > The width W3 of the spacer 150 is smaller than or equal to the inner diameter (= W1-2 * d2) in the first direction X of the fluid separation pipe 100. [ As the width W3 of the spacing member 150 is equal to or close to the inner diameter of the fluid separation pipe 100 in the first direction X, the flow of the spacing member 150 in the fluid separation pipe 100 inside the fluid separation pipe 100 And the degree to which the tube wall 100w of the fluid separation tube 100 is closely adhered can be reduced in a space where the spacers 150 are not disposed in the direction of the width W3. It is confirmed that there is a significant effect on the flow of the spacers 150 and prevention of the close contact of the pipe wall 100w of the fluid separation pipe 100 when the inner diameter of the fluid separation pipe 100 is 0.5 times or more . The width W3 of the spacers 150 may range from 0.5 to 1 times the inner diameter of the fluid separation pipe 100 in the first direction X. [

In some embodiments, the spacers 150 may be disposed in a folded or folded configuration one or more times longitudinally in the interior of the fluid separation tube 100 (100s1). For example, when the maximum width of the spacers 150 is larger than the maximum width W1 of the fluid separation pipe 100, the spacers 150 may be bent or folded one or more times in the longitudinal direction, And can be inserted into the inside of the pipe 100 (100s1). In this case, the width W3 of the spacing member 150 is defined as the width of the first direction X in the bent or folded state in the inside of the fluid separation pipe 100,

The spacers 150 have a plurality of openings 152 through which the fluid can communicate in the thickness direction (second direction). In an exemplary embodiment, the spacers 150 may have a net shape. The plurality of openings 152 provide a space in which the fluid can stay or move in the inside of the fluid separation tube 100 (100s1).

The spacers 150 may provide fluid passageways 154 in the longitudinal direction Z. [ The fluid transfer passage 154 in the longitudinal direction Z from the fluid separation pipe 100 inside portion 100s1 is required to transfer the separated fluid to one end of the fluid separation pipe 100. [ If the tube wall 100w of the fluid separation tube 100 is completely adhered to the spacing member 150 by a pressure difference between the inside and outside portions 100s1 and 100s2 of the fluid separation tube 100, The fluid is trapped inside the opening 152 of the spacers 150 and is difficult to be transmitted to one end of the fluid separation pipe 100. In this case, To prevent this, the spacers 150 may include a configuration that provides a fluid passageway 154 in the longitudinal direction Z. As an example of the above configuration, a twisted net structure separator 150 may be applied.

As illustrated in the enlarged view of FIG. 9, the twisted net structure repeats the intersection and the intersection upward and downward when the thread 150a in one direction and the thread 150b in the other direction, which constitute the net, cross each other . Therefore, even if the tube wall 100w of the fluid separation tube 100 is in close contact with the spacers 150, gaps can be maintained in the crossing regions of the chambers 150a and 150b. This gap can provide the fluid movement passage 154 in the longitudinal direction Z. [

In some embodiments, the spacers 150 may also provide fluid passageways in the direction of width W3 (first direction). The twisted net structure shown in Fig. 9 can provide not only the fluid movement passage 154 in the longitudinal direction Z but also the fluid movement passage in the width W3 direction because the gap is maintained in the crossing region of the chambers 150a and 150b have.

The spacers 150 may be made of a polymer material such as synthetic resin, nylon, polyester or the like, or a metal material.

11 is a perspective view showing a process of inserting a spacing member into a fluid separation tube. When the fluid separation pipe 100 has an elliptical cross section from the beginning, it is possible to insert the spacing member 150 after aligning the width W3 of the spacing member 150 in the longitudinal direction of the inner diameter of the fluid separation pipe 100 have.

However, as shown in Fig. 11, a fluid separation pipe 100p having a circular cross section may also be provided. Tubes provided through an extrusion process with a flexible material retain a circular cross-section unless other external forces act. In such a case, the spacing member 150 having a width larger than the inner diameter of the fluid separation pipe 100p is prepared, and the spacing member 200 is inserted into the fluid separation pipe 100p, A distorted cross-sectional shape can be imparted. If the spacing member 150 is formed of a material having a strength higher than that of the fluid separation pipe 100 and the bending strength of the spacing member 150 in the width direction is larger than the restoring force of the deformed fluid separation pipe 100, The shape of the fluid separation pipe 150 is maintained without deformation in the direction of the width W3 and the fluid separation pipe 100 is stretched correspondingly to have a distorted cross-sectional shape.

The portion of the fluid separation pipe 100 located at the end in the width W3 direction of the spacers 150 can receive a relatively higher pressure than the other portions and can be expanded more. Therefore, even if the thickness of the fluid separation pipe 100p having a circular cross section is uniform, the thickness of the corresponding portion of the fluid separation pipe 100 after insertion of the spacers 150 may be relatively small. That is, the thickness of the fluid separation tube 100 may be relatively uniform in the first direction, and may be relatively small at the portions bent at a relatively small angle at both ends in the first direction.

The width W3 of the spacers 150 is larger than the inner diameter of the circular fluid separation pipe 100p. The width W3 of the spacers 150 is not more than? / 2 times the inner diameter of the circular fluid separation pipe 100p, which is advantageous for preventing damage due to excessive stress of the fluid separation pipe 100. [ However, if the stretchability and strength of the fluid separation pipe 100 are sufficient, it is also possible that the width W3 of the spacers 150 exceeds π / 2 times the inner diameter of the circular fluid separation pipe 100p. For example, in the case of the silicone rubber having a thickness of the pipe wall 100w of the fluid separation pipe 100 of 25 mm to 100 mm, the elasticity and the strength are sufficiently excellent, so that the silicone rubber can be applied to the spacer 150 of various widths. In addition, the fluid separation pipe 100 within the above range can be suitably applied to an apparatus for separating carbon dioxide from a mixture of nitrogen and carbon dioxide, because the selection ratio of carbon dioxide to nitrogen is excellent.

12 is a schematic view of a fluid separation apparatus according to another embodiment of the present invention.

12, the fluid separation apparatus 300 according to the present embodiment includes a chamber 200, a fluid separation pipe 100 disposed inside the chamber 200, a separation member 100 inserted into the fluid separation pipe 100, The first fluid outlet 211 and the second fluid outlet 211 disposed on the other side of the chamber 200 and the fluid inlet 251 disposed on one side of the chamber 200, Further includes a fluid mixture supply tank 250, a first fluid storage tank 210, a second fluid storage tank 220, and a plurality of pumps 231, 232,

The fluid mixture providing tank 250 stores the fluid mixture and provides it to the inside of the chamber 200. The fluid mixture supply tank 250 is connected to the fluid inlet 251 through the first fluid flow pipe 252. The first fluid transfer pipe 252 is provided with a first pump 231.

The first fluid storage tank 210 serves to store the fluid introduced into the fluid separation pipe 100. The first fluid storage tank 210 is spatially connected to the interior of the fluid separation pipe 150 through the second fluid transfer tube 212. The second fluid transfer pipe 212 is provided with a second pump 232.

In the embodiment of FIG. 12, two first fluid outlets 211 are provided in the chamber 200, and a fluid separation pipe 100 having both ends opened is bent once. The second fluid transfer tube 212 branches into two branch tubes near the chamber 200 and each branch tube of the second fluid transfer tube 212 is inserted into each first fluid discharge port 211. One end and the other end of the fluid separation pipe (100) are respectively coupled to different branch pipes of the second fluid transfer pipe (212).

The second fluid storage tank 220 serves to store the fluid remaining inside the outer input chamber 200 of the fluid separation pipe 150. The second fluid storage tank 220 is connected to the second fluid outlet 221 through the third fluid transfer pipe 222. A third pump 233 may be installed in the third fluid transfer pipe 222.

In some embodiments, the second fluid outlet 221 is disposed above the fluid inlet 251. In this case, the flow of the mixed fluid is directed upward from below.

The first pump 231 serves to increase the pressure of the fluid mixture introduced into the chamber 200. When the pressure inside the chamber 200 is increased, a pressure difference occurs between the inside and the outside of the fluid separation pipe 100, and the flow of fluid through the fluid separation pipe 100 is promoted. However, if the pressure is excessively high, not only the process cost is increased but also the flow rate of the fluid is excessively increased, so that the amount of the fluid passing through the pipe wall of the fluid separation pipe 100 may be rather reduced. Considering these points, a suitable fluid pressure applied to the interior of the chamber 200 by the first pump 231 is 0 to 4 kgf / cm < 2 >.

The second pump 232 maintains a pressure difference between the inside and the outside of the fluid separation pipe 100 by allowing a negative pressure to be applied to the inside of the fluid separation pipe 100 while maintaining the fluid present in the fluid separation pipe 100 in the first fluid storage tank 100. [ (210). The rapid discharge of the fluid present in the fluid separation pipe 100 not only increases the process speed but also allows the concentration of the specific fluid inside the fluid separation pipe 100 to be kept low. Keeping the concentration of a specific fluid low in the fluid separation pipe 100 is advantageous for increasing fluid transfer efficiency by diffusion, osmotic pressure, and the like. The pressure applied by the second pump 232 is suitably at a level of 0 to -1 kgf / cm < 2 >.

The pressure difference between the inside and outside of the fluid separation pipe 100 can exhibit a commercially available separation efficiency even if it is only about 0.5 kgf / cm 2. For example, when the pressure by the first pump 231 is 0.5 kg / cm 2 and the sound pressure by the second pump 232 is maintained at about -0.5 kg / cm 2, a commercially available separation efficiency can be obtained . If the pressure difference between the inside and the outside of the fluid separation pipe 100 is larger, the separation efficiency may increase, but it may be accompanied by an increase in the processing cost due to the use of high energy. The pressure difference between the inside and outside of the fluid separation pipe 100 that is commercially available and can be effectively separated in view of the processing cost can be maintained in the range of 0.5 kgf / cm 2 to 2 kgf / cm 2.

The third pump 233 quickly discharges the fluid remaining in the chamber 200 to the outside. When the movement of a specific fluid through the fluid separation tube 100 is made in the mixed fluid mixture inside the chamber 200, the concentration of the specific fluid in the residual fluid mixture becomes low. In this state, when the chamber 200 is left in the chamber for a long time, the efficiency of separation into the fluid separation pipe 100 is lowered, and the probability that a specific fluid moves back into the chamber 200 from inside the fluid separation pipe 100 also increases. Rapid discharge of the residual fluid at an appropriate time has a great effect on process efficiency. Therefore, when a pressure of 0 to 2 kgf / cm < 2 > is applied to the third pump 233, the residual fluid can be properly discharged. However, the present embodiment is not limited thereto, and the third pump 233 may be omitted or replaced by a valve.

The storage tank may be omitted if fluid to be separated through the first fluid outlet 211 or the second fluid outlet 221 of the fluid separation device 300 is not the object of storage. For example, if it is intended to separate carbon dioxide from a mixed gas of nitrogen and carbon dioxide and if a material having a high selectivity to carbon dioxide is used as the fluid separation pipe 100, the carbon dioxide is transferred through the first fluid outlet 211 The fluid having a high carbon dioxide content is stored in the first fluid storage tank 210, but the fluid having a high nitrogen content, which is delivered through the second fluid outlet 221, can be discharged to the outside through a chimney or the like. In this case, it is needless to say that the second fluid storage tank 220 may be omitted.

During the fluid separation process, the temperature inside the chamber 200 can be maintained in the range of 0 to 60 占 폚. In an exemplary embodiment, the temperature inside the chamber 200 is maintained in the range of 20 to 40 占 폚. This relatively low temperature process condition can help to maintain the durability of the fluid separation membrane 100 and the interior of the chamber 200, while suppressing the unnecessary reaction of the internal fluid, while reducing the cost.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1: Fluid separation device
10: Fluid separation pipe
20: chamber
21: first fluid outlet
22: second fluid outlet
23: Fluid input port

Claims (17)

A fluid separation tube extending in one direction and having a closed curve shape in which the cross-sectional shape is larger in width in the first direction than in the second direction; And
And a spacing member disposed inside the fluid separation tube such that the width direction thereof is in the first direction, the spacing member including a plurality of openings formed in the thickness direction. The method according to claim 1,
Wherein the sectional shape of the fluid separation pipe is elliptical. The method according to claim 1,
Wherein the width in the first direction is 1/4 to 49/100 of the circumferential length of the fluid separation pipe. The method according to claim 1,
Wherein the width of the spacers is 0.5 to 1 times the inner diameter of the fluid separation pipe in the first direction. The method according to claim 1,
Wherein the opening provides a space through which the fluid moves. 6. The method of claim 5,
Wherein the spacing member has a mesh structure. The method according to claim 6,
Wherein the spacing member has a twisted net structure. The method according to claim 1,
Wherein the fluid separation passage defines a fluid passage in the extending direction. The method according to claim 1,
Further comprising, as a chamber, a chamber in which the fluid separation tube is disposed within the chamber. 10. The method of claim 9,
Wherein the chamber includes a fluid inlet, a first fluid outlet, and a second fluid outlet. 11. The method of claim 10,
Said fluid separation tube comprising an open end,
Wherein one end of the fluid separation pipe is spatially connected to the first fluid outlet or is exposed to the outside of the chamber through the first fluid outlet. 12. The method of claim 11,
Wherein the fluid inlet and the second fluid outlet are not spatially connected to the fluid separation tube. 12. The method of claim 11,
Wherein the fluid separation pipe comprises an open other end. 14. The method of claim 13,
And the other end of the fluid separation tube is spatially connected to the fluid input port or is exposed to the outside of the chamber through the fluid input port,
And the second fluid outlet is not spatially connected to the fluid separation tube. The method according to claim 1,
Wherein the fluid separation pipe is made of a flexible material. 16. The method of claim 15,
Wherein the fluid separation pipe comprises a silicone rubber. 16. The method of claim 15,
Wherein the spacing member is made of a material having a higher strength than the fluid separation pipe,
And the bending strength in the width direction of the spacers is greater than the restoring force of the fluid separation pipe.

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