JP2006346588A - Method and device for refining fluid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fluid refining device capable of separating or removing mixture in a fluid by other technology than the membrane separation. <P>SOLUTION: The fluid refining device has an introduction flow passage 22 as an introduction area 20, an acceleration area 30 has a reduced flow passage 36 having throttled portions 32, 34 for accelerating and ejecting fluid, and a branched area 40 has an expanded flow passage 48 consisting of a first side wall 42 which is arranged in the direction across the ejecting direction from an ejecting part 38 to guide the fluid advancing along the shape to a discharge area 50 and a second side wall 44 which is arranged in the direction different from the jetting direction of the fluid jetting out from the jetting part 38 to form an expanded part 46 in the flow passage. The discharge area 50 comprises a bulkhead for distributing the fluid flowing into the expanded flow passage 48, a first discharge flow passage 52 for introducing the fluid guided along the first side wall 42, and a second discharge flow passage 54 for introducing the fluid flowing into the expanded part 46. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for separating or removing contaminants in a fluid, and more particularly to a fluid purification method and a fluid purification apparatus for separating or removing contaminants from a fluid using means other than membrane separation.

  Regardless of liquid or gas, there is a great demand for a technique for removing contaminants such as dust, harmful substances, and specific particles contained in a fluid from the fluid. In such an actual situation, what is often used as a technique for removing contaminants (particles) in a fluid is a separation / removal technique using a membrane. This separation / removal technique using a membrane is highly reliable from the viewpoint of separating / removing particles from a fluid, but has a drawback that clogging is likely to occur and a lot of maintenance is required.

In view of the above problems, several techniques for separating or removing particles contained in a fluid by a technique other than membrane separation have been proposed. As such a technique, for example, a technique described in Patent Document 1 can be cited.
Patent Document 1 describes that two flow paths separated by a partition wall are formed, a slit is formed in the partition wall separating the two flow paths, and particles in the sample to be separated are separated using the slit. Has been. Specifically, when separate fluids are supplied to two flow paths and one of them is a fluid to be separated, particles that can pass through the slit among the particles contained in the one fluid Only moves to the flow path through which the other fluid flows.
JP 200442012 A

According to the technique described in Patent Document 1, particles contained in a fluid can be separated without using a “membrane”. However, the technique described in Patent Document 1 has the following problems.
In the technique described in Patent Document 1, it is necessary to flow a fluid different from the sample to be separated as a solvent in the flow path through which the separated particles flow. Therefore, when separating particles contained in a fluid to be separated, it is necessary to prepare a fluid to be a solvent for the separated particles in addition to the separated sample. For this reason, when the fluid that can be a solvent for the separated particles is unknown, the particles cannot be separated from the sample to be separated.

  An object of the present invention is to provide a fluid purification method and apparatus capable of efficiently separating or removing contaminants in a fluid using a technique other than membrane separation.

  In order to remove contaminants contained in the fluid using a means other than membrane separation, it is considered that the force through which the fluid flows may be used or controlled. That is, the fluid exerts a force on the particles (contaminants) contained by the flow and pushes the particles. Accordingly, when a change is made in the force affecting the particles, the course of the particles also changes. In view of this, the fluid purification method according to the present invention is a fluid purification method for obtaining a purified fluid by separating or removing contaminants contained in the introduced fluid, wherein a throttle portion is provided in a flow path through which the introduced fluid passes. The introduction fluid is accelerated, and the accelerated fluid is divided by a partition wall into a flow that travels along a wall portion provided on an extension line of the throttle portion and a flow that travels not along the wall portion, It is characterized in that the fluid that has traveled along the wall portion is discharged by including a contaminant, and the fluid that has traveled without being along the wall portion is discharged as a purified fluid. According to such a method, since both the introduced fluid and the contaminants contained in the fluid are discharged, the contaminants are separated or removed without causing clogging in the flow path due to the contaminants. Purified fluid can be obtained.

  Further, in the fluid purification method as described above, the fluid discharged by including the contaminants may be purified again as the introduction fluid. According to such a method, it is possible to obtain a large amount of purified fluid from a certain amount of fluid (introductory fluid) containing contaminants.

  In the fluid purification method as described above, the fluid discharged as the purified fluid may be purified again as the introduction fluid. According to such a method, it is possible to reduce contaminants contained in the obtained purified fluid and obtain a purified fluid with high purity.

  A fluid purification apparatus according to the present invention for achieving the above object is a fluid purification apparatus that includes an introduction region, an acceleration region, a branch region, and a discharge region, and separates or removes contaminants contained in the introduced fluid. The introduction region includes an introduction channel that takes in a fluid and guides the fluid to the acceleration region, and the acceleration region includes a reduction channel that has a throttle portion that accelerates and ejects the fluid guided from the introduction channel. The branch region is arranged in a direction crossing the ejection direction after the ejection direction of the fluid ejected from the throttle portion, and guides the fluid traveling along the shape to the discharge region. And an extended flow path that is arranged in a direction different from the direction of ejection of the fluid ejected from the throttle portion and that forms a second side wall that forms an expanded portion in the flow path. Separation of fluid flowing into the channel And a first discharge flow channel for introducing a fluid diverted by the partition and guided along the first side wall, and a fluid that is diverted by the partition and flows into the extension formed by the second side wall And a second discharge flow channel for introducing the gas. By setting it as such a structure, the contaminant contained in the introduce | transduced fluid can be isolate | separated or removed. Further, unlike the membrane separation, since the introduced fluid and the contaminants contained in the fluid are all discharged, clogging does not occur.

  A fluid purification apparatus according to the present invention for achieving the above object is a fluid purification apparatus that includes an introduction region, an acceleration region, a branch region, and a discharge region, and separates or removes contaminants contained in the introduced fluid. The introduction region includes an introduction channel that takes in a fluid and guides the fluid to the acceleration region, and the acceleration region focuses the fluid guided from the introduction channel on a side wall disposed in one of the channels. And the branch region is disposed along the direction of ejection of the fluid ejected from the restrictor, and guides the fluid traveling along the shape to the discharge region. And an extended flow path that is arranged in a direction different from the direction of ejection of the fluid ejected from the throttle portion and forms an extended portion in the flow path. Divides the fluid flowing into the expansion channel A wall, a first discharge channel for introducing a fluid diverted by the partition and guided along the first side wall, and an extension portion formed by the second side wall and diverted by the partition. It may be characterized by comprising a second discharge channel for introducing a fluid. Even with such a configuration, the contaminants contained in the introduced fluid can be separated or removed in the same manner as in the fluid purification apparatus. Further, even such an apparatus is configured to discharge all of the introduced fluid and the contaminants contained in the fluid, so that clogging does not occur.

  In the fluid purification apparatus having the above-described configuration, the introduction region, the acceleration region, the branch region, and the discharge region are arranged on a straight line, and the acceleration region meanders the fluid guided by the introduction region. It is preferable to use a reduced flow path having a throttle portion that ejects in a direction different from that at the time of introduction. By setting it as such a structure, an apparatus can be made into a straight structure as a whole. For this reason, even if it is a case where it employs in an existing channel etc., application becomes easy.

  Moreover, in the fluid purification apparatus having the above-described configuration, it is preferable that the throttle unit be configured to be able to expand and contract. With such a configuration, it is possible to adjust the flow velocity of the fluid ejected from the acceleration region to the branch region. By controlling the flow velocity of the jet flow, it is possible to appropriately change the mass, size, etc. of the particles to be separated or removed.

  In the fluid control device having the above-described configuration, it is desirable that the first discharge channel and the second discharge channel be extended from the inlet side to the outlet side of each channel. By adopting such a configuration, resistance when the fluid flows from the branch region into the discharge region (the first discharge channel or the second discharge channel) is reduced. For this reason, it is possible to avoid a situation in which the fluid cannot flow into the discharge region and flows backward.

  Moreover, the fluid purifying apparatus according to the present invention is configured by connecting a plurality of fluid purifying apparatuses having the above-described configuration in series, and discharging the fluid discharged from the first discharge channel in the fluid purifying apparatus arranged on the upstream side. It may be configured to lead to the introduction flow path in the fluid purification apparatus disposed downstream. With such a configuration, a large amount of purified fluid can be obtained from a certain amount of fluid containing contaminants.

  Further, the fluid purifying apparatus according to the present invention is configured by connecting a plurality of fluid purifying apparatuses having the above-described configuration in series, and discharging the fluid discharged from the second discharge flow path in the fluid purifying apparatus arranged on the upstream side. It may be configured to lead to the introduction flow path in the fluid purification apparatus disposed downstream. By setting it as such a structure, the quantity of the contaminant contained in the purified fluid obtained can be reduced. That is, it is possible to obtain a purified fluid with high purity. Furthermore, it is possible to perform fluid purification step by step according to the size of contaminants that are desired to be separated or removed.

  Furthermore, the fluid purifying apparatus according to the present invention may be a plurality of fluid purifying apparatuses configured as described above connected in parallel. By adopting such a configuration, it becomes possible to purify a large amount of fluid in a short time, which is efficient in obtaining a purified fluid.

  Hereinafter, embodiments of the fluid purification method and the fluid purification apparatus of the present invention will be described with reference to the drawings. The following embodiments are only some embodiments according to the present invention, and the technical scope of the present invention is not limited only to the following embodiments. In the embodiment described below, the fluid purification apparatus is a generic name including various units shown below and combinations of these units.

  First, a first embodiment of the basic unit of the fluid purification apparatus of the present invention will be described with reference to FIG. The basic unit (unit) 10 of the present embodiment includes an introduction region 20, an acceleration region 30, a branch region 40, and a discharge region 50. The basic unit (unit) 10 includes a side wall and a partition wall provided in one straight structure flow path. The flow is controlled to separate or remove contaminants (particles) contained in the introduced fluid. Hereinafter, the configuration, operation, and effect of each region will be described in detail.

  The introduction area 20 is an area having an introduction flow path 22 for introducing a fluid containing various particles, and the shape of the introduction flow path 22 is not particularly limited. For example, a straight structure as shown in FIG. Anything is fine.

  The acceleration region 30 is formed with a reduced flow path 36 including throttle portions 32 and 34, and the fluid introduced from the introduction flow path 22 is accelerated to pass through and ejected. The reduced flow path 36 of the present embodiment includes a first throttle portion 32 configured by the side walls 32a and 32b, and a second throttle portion 34 configured by the side walls 34a and 34b. The first throttling portion 32 has a structure in which the side wall 32a is greatly inclined toward the side wall 32b and the flow path is narrowed while the fluid guided by the introduction flow path 22 is brought close to one side surface of the unit 10. The second restricting portion 34 has a structure that further narrows the flow path while forming a flow path that guides the fluid drawn by the first restricting portion 32 to the other side surface of the unit 10. For this reason, the reduced flow path 36 constitutes a meandering flow path as a whole, and the ejection portion 38 on the discharge side ejects (discharges) fluid in a direction different from that at the time of introduction as shown in FIG. It becomes a structure.

  The branch region 40 has a side wall (first side wall) 42 that is arranged in a direction intersecting with the direction of fluid ejection after flowing in the direction (flow direction) of the fluid ejected from the second throttle portion 34. And an extended flow path 48 including a side wall (second side wall) 44 that is disposed in a direction different from the direction in which the fluid ejected from the second throttle part 34 is formed and forms the extended part 46 in the flow path. This is the region that gives velocity distribution to the jet flow. The first side wall 42 preferably has a curved shape. This is because by adopting such a shape, the flow traveling along the first side wall 42 can be made smooth.

  The fluid ejected from the second throttle portion 34 flows into the expansion portion 46 side from the portion having a high speed that travels along the first side wall 42 due to the force of ejection in the expansion flow channel 48. It will be distributed to the part which has slow speed to advance.

  The discharge region 50 has a vertex that divides a flow having a high velocity guided along the first side wall 42 in the branch region 40 and a flow having a low velocity that flows into the expansion portion 46 side. And a first discharge channel 52 that introduces a flow having a high speed divided by the apex, and a second discharge channel 54 that introduces a flow having a low velocity diverted by the apex. It consists of. The first discharge flow channel 52 and the second discharge flow channel 54 are separated by a flow dividing partition 56 having an apex, and are configured so that fluid introduced into both flow channels is not mixed.

The fluid ejected from the ejection portion 38 is a portion of the flow having a slow velocity that flows into the expansion portion 46 side from a portion having a fast velocity along the first side wall 42 in the expansion channel 48. Distributed to.
The particles contained in the fluid move under the force of the fluid flow. At this time, particles having a large mass (for example, large-diameter particles) have a large inertial force due to the movement, and the force traveling along the flow increases. On the other hand, particles having a small mass (for example, small-diameter particles) have a small inertial force obtained by motion, and therefore a force traveling along the flow is also small.

  For this reason, the distribution of the particles in the expansion flow channel 48 is such that a large amount of particles having a relatively large diameter are distributed in the flow portion having a fast velocity that flows along the first side wall 42 by riding on the momentum of the jet flow. In the portion having a slow speed flowing into the expanded portion 46 side, a relatively large number of particles having a small diameter are distributed. That is, a separation action based on the size of the particles occurs. Further, by forming the first side wall 42 in a curved shape, a force (centrifugal force) directed toward the outer peripheral direction of the curved portion acts on the particles traveling along the curved portion. Due to the action of such a force, as shown in FIG. 2, the large-diameter particles have a higher probability of traveling along the first side wall 42. On the other hand, even when the small-diameter particles are contained in a fluid having the same speed, the magnitude of the inertial force applied is different from that of the large-diameter particles, so that the probability of flowing into the expansion portion 46 is increased. Here, the distribution and separation action of the large and small diameter particles contained in the fluid in the expansion channel 48 have been described. However, by controlling the speed of the jet flow by expansion and contraction of the jet portion 38, the small diameter particles can be reduced. In contrast, it is also possible to apply a sufficient inertial force and separate the structure.

  As described above, a fluid velocity distribution, particle size, and quantity distribution are formed in the expansion channel 48. For this reason, the top of the flow dividing partition 56 has a ratio of the fluid guided to the first discharge channel 52, a ratio of particles contained in the fluid, a ratio of the fluid guided to the second discharge channel 54, and The proportion of particles contained in the fluid will be controlled. Therefore, it is desirable to determine the position of the apex in consideration of the amount of fluid, the ratio of particles, the flow velocity, and the like.

  By adopting such a configuration, an excessive amount of fluid does not flow into the first discharge channel 52 side, and the amount of fluid flowing into the second discharge channel 54 side can be increased. No particles to be separated are mixed into the two discharge flow paths 54 side. For this reason, it becomes possible to efficiently obtain a purified fluid obtained by separating or removing particles from a certain amount of fluid containing particles.

  The discharge flow paths 52 and 54 in the present embodiment are configured so that the discharge side is an expanded flow path compared to the fluid introduction side in each flow path. By adopting such a configuration, it is possible to reduce the resistance when the fluid flows into the flow path, to prevent the introduction of the fluid and to promote the back flow of the fluid, and to efficiently purify the fluid. Will be able to.

  In the unit 10 having such a configuration, the fluid introduced into the introduction region 20 is guided to the acceleration region 30 through the introduction flow path 22. The fluid introduced into the acceleration region 30 meanders and is ejected from the ejection portion 38 in a direction different from that at the time of introduction and flows into the branch region 40. In the branch region 40, the fluid has a velocity distribution extending from a flow having a high velocity flowing along the first side wall 42 to a flow having a low velocity flowing into the extension 46, and the flow flowing along the first side wall 42. Includes a large number of particles to which an inertial force is applied in the acceleration region 30. The flow having the velocity distribution is diverted at the apex of the diversion partition wall 56 and introduced into the first discharge flow path 52 and the second discharge flow path 54. In the case of the present embodiment, the fluid introduced into the first discharge channel 52 contains many particles, and the fluid introduced into the second discharge channel 54 contains almost all particles. It becomes a state that can not be.

  According to the unit 10 as described above, the size of the particles to be separated and removed from the introduced fluid by changing the width of the ejection portion 38 in the second restricting portion 34 and the arrangement position of the apex in the flow dividing partition 56 ( Mass) can be changed. For example, if it is desired to remove large-diameter particles having a large mass, but the small-diameter particles having a small mass may be contained, the width of the ejection portion 38 is set to be relatively wide, or the apex of the flow dividing partition 56 is set. Settings such as the rearward placement position can be selected. In order to remove small particles, the width of the ejection portion 38 is reduced, and the arrangement position of the apex of the flow dividing partition 56 is also arranged forward. For this reason, it may be difficult to obtain a larger amount of purified fluid after separation as the smaller particles are separated, but the balance between the width of the ejection portion 38 and the position of the apex of the flow dividing partition 56 is taken into consideration. By defining the flow path form, more purified fluid can be efficiently obtained. In the unit 10 of the present embodiment, the introduction region 20, the acceleration region 30, the branch region 40, and the discharge region 50 can be arranged on a straight line by meandering the flow path formed in the acceleration region 30. Thus, it becomes easy to introduce the unit 10 into an existing straight-structured flow path or pipe. Further, since the unit 10 is configured to discharge both the fluid and particles introduced into the unit 10 from either the first or second discharge channel 52 or 54, the channel may be clogged. There is no. In addition, since a membrane or the like is not used for separation or removal of particles, resistance (filtration resistance) generated in the flow path is small, and purification efficiency is good. In addition, since the acceleration region 30 is provided in the flow path to change the fluid velocity, a sufficient effect can be obtained without using means such as pressurization and suction. In the figure, the shape of the apex of the flow dividing partition 56 is a shape like a twist, but this is one of the preferred shapes, and the apex shape is not limited to this. .

  In the unit 10 configured as described above, a protrusion 39 as indicated by a broken line may be provided on the surface of the side wall 34b. With such a configuration, the fluid that flows into the second throttle portion 34 and flows along the side wall 34b can be guided to the side wall 34a side. Along with the transition of the flow due to the influence of the protrusion 39, the particles contained in the fluid are distributed to the side wall 34a side. For this reason, more particles will be contained in the fluid that is ejected from the ejection portion 38 and flows along the first side wall 42, and the purification effect of the fluid can be enhanced. In addition, as shown in FIG. 1 and FIG. 2, it is desirable that the projecting portion is formed at the tip of the side wall 34b, but the present invention is not limited to this.

  In the above description, for the sake of simplicity, the portion that guides the fluid flowing along the side wall 34b to the side wall 34a has been described as the protrusion 39. However, the shape of the side wall 34b itself is changed (for example, curved). Etc.) may be configured to exhibit the same action.

  Next, a second embodiment of the basic unit according to the fluid purification apparatus of the present invention will be described with reference to FIG. The unit of the present embodiment has the same configuration and function as the unit shown in the first embodiment. That is, it is composed of the introduction region 20, the acceleration region 30, the branch region 40, and the discharge region 50. Accordingly, portions having the same function are denoted by the same reference numerals in the drawings, and detailed description thereof is omitted.

  The difference between the unit 10 of this embodiment and the unit shown in the first embodiment is that the unit shown in the first embodiment has a straight structure as a whole, whereas the unit 10 of this embodiment is This is a point that the entire structure is bent from the introduction side to the discharge side. This is because the meandering channel formed in the acceleration region by the unit shown in the first embodiment is eliminated. That is, in the unit shown as the first embodiment, the jet flow from the throttle portion is jetted in a direction different from the time of introduction by meandering the flow path of the acceleration region, and when introduced along the first side wall. It was the composition which led to the flow of the same direction. On the other hand, in the unit 10 of this embodiment, the meandering flow path in the acceleration region is made unnecessary by changing the flow direction at the time of introduction and the flow direction at the time of discharge as the whole unit.

By configuring the unit 10 in such a configuration, it is possible to reduce the area of the side wall portion for configuring the meandering portion, and it is possible to realize a compact unit 10 as a whole.
The unit 10 configured as described above has a structure in which the fluid introduced from the introduction flow path 22 that opens downward in FIG. 3 is discharged from the discharge flow paths 52 and 54 that open toward the right side of FIG. ing. And the flow of the fluid inside the unit 10 is as follows.

  The fluid introduced from the lower side in the drawing into the introduction flow path 22 in the introduction region 20 is guided to the acceleration region 30. The fluid introduced from the introduction flow path 22 to the reduction flow path 36 in the acceleration region 30 is focused on the upper left portion in the figure according to the shape of the flow path. The fluid accelerated by the focusing is ejected from the ejection portion 38 which is the tip of the reduced flow path 36 and is introduced into the branch region 40. The fluid spouted into the branch region 40 flows from the flow having a high velocity guided along the first side wall 42 to the discharge region 50 into the extension 46 formed by the second side wall 44. Velocity distribution spreads to Then, the flow having the velocity distribution is diverted by the apex of the diversion partition wall 56 and introduced into the first discharge flow path 52 and the second discharge flow path 54.

  As described above, since the fluid flowing along the first side wall 42 contains many particles, the fluid flowing into the first discharge channel 52 contains many particles. The fluid flowing into the second discharge channel 54 becomes a purified fluid from which specific particles are separated or removed. Moreover, in the said embodiment, it described that the 1st side wall 42 was distribute | arranged to the direction which cross | intersects an ejection direction for the purpose of making an ejection fluid advance along a wall part (for example, 1st Embodiment). reference). However, as shown in FIG. 3, in the case where the introduction fluid is configured to be focused on the first side wall 42 side by the reduced flow path 36 that forms a throttle, the first side wall 42 is deliberately ejected. There is no need to place it in a direction that intersects the direction. This is because the particles contained in the fluid can be made to follow the first side wall 42 when the introduced fluid is focused on the first side wall 42 side in the reduced flow path 36.

As described above, even with the unit 10 having the above-described configuration, it is possible to purify the fluid in the same manner as the unit shown in the first embodiment.
When fluid purification is performed using the unit 10 shown as the first embodiment or the second embodiment, a plurality of units 10 are connected in series, and the fluid discharged from the discharge region 50 is returned to the introduction region 20 again. It can also be configured to guide.

  For example, if the fluid discharged from the first discharge flow path 52 is again introduced into the introduction flow path 22 and the fluid purification is repeated, the purified fluid is removed from a certain amount of fluid containing particles. A large amount can be obtained, which is efficient in obtaining a purified fluid.

  On the other hand, if the fluid discharged from the second discharge flow channel 54 is again introduced into the introduction flow channel 22 and the fluid purification is repeated, the probability of separation and removal of particles is improved, and high purity purification is performed. A fluid can be obtained.

  4 and 5 show a schematic configuration for realizing the above configuration as one unit. 4 and 5 each show a unit 10a including three fluid purification units 11 (11a to 11c). 4 shows an example of the unit 10a when the fluid discharged from the first discharge channel 52 is guided to the introduction channel 22 in the fluid purification unit 11 at the next stage and purified again. FIG. An example of the unit 10a in the case where the fluid discharged from the discharge channel 54 is guided to the introduction channel 22 in the fluid purification unit at the next stage and purified again will be shown.

  As shown in each figure, the flow path for performing the fluid purification is formed so as to repeat the configuration of expanding before and after the acceleration region. That is, the entire flow path is formed so as to repeat expansion and contraction. This is a configuration for demonstrating the function of the acceleration region, and is a matter formed by a configuration in which each discharge flow path after the diversion is expanded. Further, the configuration of expanding the discharge flow path also has an effect of preventing the back flow of the fluid as described above. In addition, in performing the repeated diversion, the width (volume) of one of the discharge flow paths 52 and 54 is reduced for each fluid purification unit 11 so as to balance the fluid flowing into the other discharge flow path. Thus, it is possible to prevent a situation in which one of the discharge flow paths becomes saturated and reversely flows.

  The fluid purification apparatus of the present invention also includes a unit as shown in FIG. A unit 100 shown in FIG. 6 is a sheet in which the units shown in the above embodiment (units shown in FIG. 4) are arranged in parallel. According to such a sheet-like unit 100, a large amount of fluid can be purified in a short time. In addition, since the sheet-like unit 100 having such a configuration does not limit the size and the number of arrangements, the design may be appropriately changed according to the use. For example, if the object to be separated or removed is minute dust or the like, the width of the flow path of the basic unit 10 described above may be about several to several tens of micrometers. On the other hand, when the target particles are dust that scatters in a river or the like, the width of the flow path of the basic unit 10 may be configured to match the river width.

  Further, the sheet-like units 100 may be stacked three-dimensionally to constitute a cassette-like unit 200 as shown in FIG. As shown in FIG. 7, it is possible to efficiently purify more fluid in a short time by stacking the sheet-like units 100 in multiple stages. When the cassette-like unit 200 is configured, for example, as shown in FIG. 7, the fluid discharged from one inlet 210 that collectively introduces the fluid and the first discharge passage 52 that discharges the fluid containing a large amount of particles. It is preferable to include two discharge ports, a non-purified fluid discharge port 220 that collectively discharges the purified fluid and a purified fluid discharge port 230 that collectively discharges the purified fluid discharged from the second discharge channel 54. By adopting such a form, introduction of fluid into the unit and collection of fluid from the unit are facilitated.

  Furthermore, the fluid purification apparatus of the present invention includes the one shown in FIG. The unit shown in FIG. 8 is a box-shaped unit 300, and is a unit having a configuration in which the above-described cassette-shaped unit 200 (which may be the basic unit 10 or the sheet-shaped unit 100) is arranged in multiple stages.

  The box-shaped unit 300 shown in FIG. 8 includes three cassette-shaped units 200 (from the first cassette-shaped unit 200a to the third cassette-shaped unit 200c), and the fluid purified by the first cassette-shaped unit 200a. The second cassette-like unit 200b is used for purification, and the purified fluid is further purified by the third cassette-like unit 200c. For this reason, in the box-shaped unit 300, many fluids can be purified in a short time, and the purity of the fluid after purification can be high (those with little contamination).

Further, the box-shaped unit 300 having such a configuration can be configured such that the size of particles to be separated or removed is changed stepwise from the first cassette-shaped unit 200a to the third cassette-shaped unit 200c. .
For example, the first cassette-like unit 200a is set to remove large dust and particles contained in the fluid. Next, the second cassette-like unit 200b is set to remove particles such as small sand. The third cassette-like unit 200c is set so as to further remove fine particles. By adopting such a configuration, it is possible to avoid a situation in which large particles are erroneously mixed in the unit for removing small particles, and this causes a problem in the unit.

  In addition, as described above, in the unit for separating large particles, the amount of the purified fluid to be obtained can be set large, so that the unit for separating small particles is arranged in multiple stages for purification. Even more purified fluids can be obtained.

  In the box-shaped unit 300 having such a configuration, the fluid introduced from the inlet 310 is guided to the inlet 210 of the first cassette-shaped unit 200a. The fluid purified by the first cassette-like unit 200a passes through the relay path 330 and is guided to the second cassette-like unit 200b. Further, the fluid purified by the second cassette-shaped unit 200b passes through the relay path 330 and is guided to the third cassette-shaped unit 200c as described above. Then, the fluid purified by the third cassette-like unit 200c is discharged from the purified fluid discharge port 330. On the other hand, among the fluids divided by the respective cassette-like units 200 (200a to 200c), the fluid containing a large amount of particles is discharged to the discharge path 340 and is guided to the non-purified fluid discharge port 320 and discharged.

  As shown in FIG. 9, the box-shaped unit 300 described above may be arranged in multiple stages to constitute one large unit 400. In this unit, it is natural that a large amount of fluid can be purified in a short time, but the following effects can also be obtained. The large-sized unit 400 shown in FIG. 9 is configured to introduce a fluid containing a large amount of particles (non-purified fluid) among the fluids divided by the box-shaped unit 300 disposed in the upper stage into the box-shaped unit disposed in the next stage. It is said. For this reason, the ratio of the purified fluid can be made very high as the ratio of the finally obtained fluid. That is, a large amount of purified fluid can be obtained efficiently from a large amount of fluid in a short time. Note that the configuration of the large unit 400 is not limited to that shown in FIG. 9, and the combination of the box-shaped unit 300, the cassette-shaped unit 200, and the like can be changed as appropriate to achieve a configuration suitable for the application.

Of the units shown in the above embodiment, specific examples carried out using the unit shown in FIG. 4 are shown below. The measurement results shown in Table 1 show that the width of the introduction flow path 22 in the fluid purification section 11a is 0.3 m, the width of the ejection section 38 is 0.011 m, the total length of the flow path is 1.5 m, and the specific gravity of the particles is 0. .9 is an example of measurement. Note that “inflow” is an item representing the number of particles introduced into the introduction flow path 22 and the amount of fluid, and “outflow” is a ratio of particles and fluid discharged from the discharge flow paths 52 and 54. It is an item to show.

  In this example, as shown in Table 1, in all of the four examples, the ratio of particles contained in the fluid discharged from the first discharge channel increases, and the fluid is on the second discharge channel 54 side. It was possible to obtain a result that the ratio of exhausted from the plant increased. That is, according to the basic unit 10a according to the present invention, most of the particles contained in the fluid can be separated or removed, and more purified fluid can be obtained as a proportion of the discharged fluid. is there.

Industrial application fields

  The fluid purification apparatus of the present invention can cope with separation or removal of particles from various fluids regardless of gas or liquid. Therefore, depending on the setting of the particles to be separated or removed, it can be used widely from the removal of dust floating in the reservoir to the separation of plasma in the blood and the removal of harmful particles such as dioxin and NOx contained in the exhaust gas. be able to. Of course, since it can be applied to ecological separation of microorganisms and the like, it can also be applied to removing plankton contained in ballast water of ships and the like that has been regarded as a problem in recent years.

It is a figure which shows 1st Embodiment which concerns on the basic unit of the fluid purification apparatus of this invention. It is the elements on larger scale which show the structure of the acceleration area | region and branch area | region of the basic unit shown in FIG. It is a figure which shows 2nd Embodiment which concerns on the basic unit of the fluid purification apparatus of this invention. It is a figure which shows the 1st form of a unit provided with a some fluid refinement | purification part. It is a figure which shows the 2nd form of a unit provided with the some fluid refinement | purification part. It is a figure which shows the sheet-like unit which has arrange | positioned the unit shown in FIG. 4 in parallel. It is a figure which shows the cassette-shaped unit which laminated | stacked the sheet-like unit. It is a figure which shows the box-shaped unit which has arrange | positioned the cassette-shaped unit in multiple stages. It is a figure which shows the large sized unit which has arrange | positioned the box-shaped unit in multiple stages.

Explanation of symbols

  10 ......... Basic unit (unit), 20 ......... Introduction region, 22 ......... Introduction flow path, 30 ......... Acceleration region, 32 ......... First restrictor, 34 ......... Second restrictor , 36 ......... reduced flow path, 38 ......... ejecting part, 40 ......... branch region, 42 ......... first side wall (side wall), 44 ......... second side wall (side wall), 46 ... ...... Expansion section, 48... Expansion flow path, 50... Discharge area, 52... First discharge flow path, 54. ...... Sheet-like unit, 200... Cassette-like unit, 300... Box-like unit, 400.

Claims (11)

A fluid purification method for obtaining a purified fluid by separating or removing contaminants contained in an introduced fluid,
Providing a throttle in the flow path through which the introduced fluid passes to accelerate the introduced fluid;
The flow is accelerated along the wall provided on the extension line of the throttle portion, and the flow that does not follow the wall is divided by the partition wall,
Including the contaminants in the fluid that has traveled along the wall, and discharging it,
A fluid refining method, wherein the fluid that has advanced without being along the wall is discharged as a refining fluid.   The fluid purification method according to claim 1, wherein the fluid discharged including the contaminants is purified again as an introduction fluid.   The fluid purification method according to claim 1, wherein the fluid discharged as the purification fluid is purified again as an introduction fluid. A fluid purification apparatus comprising an introduction region, an acceleration region, a branch region, and a discharge region, and separating or removing contaminants contained in the introduced fluid,
The introduction region includes an introduction channel that takes in fluid and guides it to the acceleration region;
The acceleration region includes a reduced flow path having a throttle portion that accelerates and ejects the fluid guided from the introduction flow path,
The branch region is arranged in a direction crossing the ejection direction after the ejection direction of the fluid ejected from the throttle portion, and a first side wall that guides the fluid traveling along the shape to the discharge region An extended flow path comprising a second side wall that is arranged in a direction different from the direction of ejection of the fluid ejected from the throttle portion and forms an extended portion in the flow path,
In the discharge region, a partition that divides the fluid that has flowed into the expansion channel, a first discharge channel that introduces a fluid that is diverted by the partition and guided along the first side wall, and the partition And a second discharge channel for introducing the fluid that has flowed into the expansion portion formed by the second side wall. A fluid purification apparatus comprising an introduction region, an acceleration region, a branch region, and a discharge region, and separating or removing contaminants contained in the introduced fluid,
The introduction region includes an introduction channel that takes in fluid and guides it to the acceleration region;
The acceleration region includes a reduced flow path having a throttle portion that focuses and ejects the fluid guided from the introduction flow path to a side wall disposed in one of the flow paths.
The branch region is arranged along the ejection direction of the fluid ejected from the throttle portion, and a first side wall that guides the fluid traveling along the shape to the discharge region, and the ejection direction of the fluid ejected from the throttle portion An extended flow path that is arranged in a different direction from the second side wall that forms an extended portion in the flow path,
In the discharge region, a partition that divides the fluid that has flowed into the expansion channel, a first discharge channel that introduces a fluid that is diverted by the partition and guided along the first side wall, and the partition And a second discharge channel for introducing the fluid that has flowed into the expansion portion formed by the second side wall. The introduction region, the acceleration region, the branch region, and the discharge region are arranged on a straight line,
The said acceleration area | region was made into the reduction | decrease flow path which has the throttle part which meanders the fluid guide | induced by the said introduction area | region, and ejects it in the direction different from the time of introduction | transduction. Fluid purification device.   The fluid purifying apparatus according to any one of claims 4 to 6, wherein the throttle portion can be expanded and contracted.   The said 1st discharge flow path and the said 2nd discharge flow path are extended from the entrance side of each flow path to the exit side, The any one of Claim 4 thru | or 7 characterized by the above-mentioned. Fluid purification device.   A plurality of fluid purifiers according to any one of claims 4 to 8 are connected in series, and the fluid discharged from the first discharge channel in the fluid purifier disposed upstream is disposed downstream. A fluid purification apparatus characterized in that the fluid purification apparatus is configured to lead to the introduction flow path.   A plurality of fluid purifiers according to any one of claims 4 to 8 are connected in series, and the fluid discharged from the second discharge passage in the fluid purifier disposed upstream is disposed downstream. A fluid purification apparatus characterized in that the fluid purification apparatus is configured to lead to the introduction flow path.   A fluid purification apparatus comprising a plurality of fluid purification apparatuses according to any one of claims 4 to 10 connected in parallel.

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