JPH0247932B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a new structure of a microfluidic divider or fluidic alternating element suitable for alternating fluids.

Although this fluid alternating element may be classified as a type of static fluid mixing element, it is rather a structure or element that "alternates" fluid. It concerns the new structural element.

[Conventional technology]

There are many conventional alternating array elements and techniques using them, such as the following.

(1) Dutch Patent No. 185539 (2) US Patent USP 3195865 (3) US Patent USP 3206170 (4) US Patent USP 3583678 (5) US Patent USP 3286992 (6) US Patent USP 2601018 (7) US Patent USP 4307054 (8) United States Patent USP 3608148 (9) United States Patent USP 3577308 (10) Japan Special Publication No. 1977-11233 (11) Japanese Special Publication No. 1977-8290 (12) Japanese Special Publication No. 1977-34557 (13) Japanese Special Publication No. 1977-10741 (14) Japanese Patent Publication No. 52-17264 (15) Japanese Patent Publication No. 53-36182 (16) Japanese Patent Publication No. 48-94945 (17) Japanese Patent Publication No. 48-94052 (18) Japanese Patent Publication No. 1973-145522 Among others Japanese Patent Publication No. 55-145522 provides a structure (fluid mixer) with many excellent features (refer to the same publication as necessary).

However, this publication discloses only one mixing type of fluid alternating arrangement element, that is, a fluid mixer, and for example, it is not applicable to three-fluid spinning or three-fluid ejection (with two or more components) as described below. If such an important fluid alternating arrangement is intended, a very inconvenient situation arises.

The present inventor has already invented and applied for a patent for easily producing polymeric mutually arranged fibers using an alternating fluidic arrangement element, but for example, it includes the following: This primary alignment fluid is then merged with another C polymer fluid (including cases where its components are the same as any of the components constituting the primary alignment flow), and then a second alignment fluid is formed. When forming the next large number of alternating layered arrangements, the direction of the layer of the laminar flow formed in the first alternating arrangement and the direction of the layer of the C flow intersect (crossing angle θ, preferably 90 degrees or around 90 degrees). ) A method for producing a polymer mutual array, which comprises merging and alternately arranging the layered mutual bonding interface so that it is cut into a large number by the C layer, and then discharging from a spinneret or film nozzle.'' and the same apparatus. A large number of them have been disclosed, and at the same time their importance and effectiveness have been shown. In particular, it is suitable for producing a polymer mutual array suitable for producing ultrafine fibers.

In such a case, when introducing the third C component flow and in the subsequent distribution of the fluid, the method described in this patent application
145522 discloses only the fluidic alternating array element,
Even if the fluidic alternating array element is used upside down, the purpose will not be achieved, and this is easily understood by looking at the drawing or, more intuitively, by actually looking at the element. It is. Therefore, the fluid element must be twisted at or near 90 degrees, and if the fluid element is twisted, the introduction part will move to another location, which requires a new complicated conduit to move it to that location. It requires installation and is inconvenient.

[Problems to be Solved by the Invention] An object of the present invention is to solve the problem that the arrangement of layers when fluids are mutually arranged while having the same fluid inlet and outlet parts is disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 55-145522. A fluidic alternating array element having a layer arrangement other than that of the known method, i.e., at or near a right angle to the layer arrangement of the known method, and having the same inlet and outlet arrangements so as to facilitate use in stacking the fluidic elements in succession. It is to provide. This is called a racemic fluid alternating array element or a racemic microfluidic divider because although they look the same on the outside, they have different internal arrangement effects. (In contrast to the d-form in organic compounds, the l-form has a similar but completely different activity...
racemic) named after its body. ) In Japanese Patent Application Laid-open No. 145522/1983, it was thought that there was no other method of arranging fluids, and there was no disclosure at all. Also, there was no need to consider other structures without a specific purpose. The object of the invention is to provide a new fluid alternating array element in this sense.

On the other hand, it is an object of the present invention to provide a new fluidic alternating array element that can be effectively used to create polymeric interarrays and the like.

In addition, it is actually devised to increase the arrangement effect during use, but in principle, by continuing to combine with the conventional fluid alternating arrangement element, the conventional fluid alternating arrangement effect can be reversed. The object of the present invention is to provide a fluidic interleaving element that acts as a pullback.
Of course, these need to have exit and entrance arrangements that allow them to be interconnected.

[Means for solving problems]

The gist of the present invention is as follows.

(1) A fluid alternating array element having a structure including at least one unit in which a shape-deforming part having one passage and a moving part having two passages A and B are connected in a conduit; The cage has a structure in which the cross-section of one passage maintains a parallelogram, and the shape of the passage changes continuously without substantially changing the cross-sectional area perpendicular to the direction in which the pipe line extends, and is movable. The section has two passages having the same shape and a sum of cross-sectional areas orthogonal to the extending direction of the conduit approximately equal to the adjacent cross-sectional area of the deformed section at a position adjacent to the deformed section, and the conduit A fluid alternating arrangement characterized in that the centers of the two passages are bent without interfering with each other while taking point-symmetrical positions, and the two passages overlap each other at both ends of the moving part. In the element, the entrances of the two passages are located in four quadrants of a plane divided by two orthogonal X-axes X-O-X' and Y-O-Y' that are perpendicular to the direction in which the pipes extend. Of these, the entrance A of one passage is located in the quadrant Y-O-X', and the entrance B of the other passage is located in the quadrant X-O-Y.
When arranged so as to pass through each surface, the fluid flow tubes are connected to the two outlets A′,
The arrangement of the pipes up to B' is such that the center of each pipe (connecting to A and B) is on a plane formed by the X-O-X' line and the longitudinal direction of the element, or on a plane parallel to the line. The fluid is characterized in that it has a conduit configuration in which the fluids A and B pass through the shape deforming part in the order of being disposed on the Y-O-Y plane or on a plane parallel to the Y-O-Y plane. Alternating array elements.

Since the device of the present invention has a three-dimensional configuration, it is difficult to understand the contents of the device unless it is specified from which direction the device is viewed. Therefore,
This will be explained by comparing it with the drawing disclosed in Japanese Patent Application Laid-open No. 55-145522.

The fluid alternating array element is originally defined by holes or pipes for the flow path, and the external shape of the element itself is generally not critical. As a whole, it does not matter whether it is square columnar, cylindrical, or any other columnar shape. In the display method of JP-A-55-145522, the flow path is shown so as to be seen from the outside, except for the outer periphery (FIG. 2, which will be described later, also corresponds to this). The following table shows the results accordingly. (For ease of understanding, the XY coordinates in FIG. 1, which will be described later, are shown as a square outer periphery that largely surrounds both inflow portions A and B.

First, FIG. 1 shows the fluid alternating array element viewed from above, and the inlets of fluid A and fluid B are not defined. In the figure, A and B indicate the entrance, and two orthogonal axes (two axes when viewed three-dimensionally)
Y-O-Y' and X-O-X' are provided,
The entrance part of A was arranged symmetrically in the fourth quadrant, and the entrance part of B was arranged symmetrically in the fourth quadrant. The inlet was thus defined. Also in the longitudinal direction of the element, the X-axis and Y-axis are extended in a planar manner to define a conduit. If you look at the exit properly from above, it will be in the same position. (This is why multiple fluidic interleaving elements can be used in stacks.) From the inlet to the outlet, fluid is matched, stratified, and redistributed. The situation at this time is shown in Figs. 2 and 3. FIG. 2 shows a conventional fluid arrangement (Japanese Unexamined Patent Publication No. 55-145522), and FIG. 3 shows a fluid distribution arrangement according to the present invention.

In Figure 2, two channels A and B as shown in a are arranged in the Y-O-Y' direction as shown in b, merge at c, and d,
It is sequentially deformed as shown in e, stretched in the X'-O-X direction as shown in e, divided as shown in f, and arranged in the fourth and fourth quadrants as shown in g. It is moving forward in the flow direction, but when viewed from above, it appears to have returned to its original position. In g, they are indicated by A' and B'.

FIG. 3 shows the present invention, in which channels A and B as shown in a' are arranged in the X'-O-X direction as shown in b',
They meet at c', are sequentially deformed as d' and e', are stretched in the Y-O-Y' direction as e', are divided as (f'), and are divided into the fourth and fourth quadrants as g'. will be placed in It is moving forward in the flow direction, but when viewed from above, it appears to have returned to its original position.
In g′, they are indicated by A′ and B′.

In the conventional system shown in FIG. 2, the fluid interface is formed in the X-axis direction, whereas in the present invention shown in FIG. 3, the fluid interface is formed in the Y-axis direction. Therefore, if the alternate fluid array element of FIG. 3 is combined with the alternate fluid array element of FIG. 2, theoretically the alternate fluid arrays of A and B will return to their original state. This means that no division or arrangement has proceeded. This can be done without any 90 degree twist (the combination shown in Figure 2 requires a suitable twist tube for a 90 degree twist).

If the fluid reaches the state d in Figure 2, the fluid is throttled and introduced into part A of a' in Figure 3, and the third component is introduced into part B, assuming that the third component is A or It will be understood that different situations will occur even if either one of B is selected. The meaning of racemic fluidic alternating array elements or racemic microfluidic dividers will thus be more clearly understood.

FIG. 4 is a perspective view of a fluid mixer disclosed in Japanese Patent Application Laid-Open No. 55-145522, and FIG. 5 is a perspective view of a fluid alternating arrangement element according to the present invention. No matter how many times you pull the element in Figure 4 or turn it upside down, the element in Fig.
The composition of the diagram cannot be taken. Although the present invention may appear to be similar at first glance, it has been discovered that it can take on a new and different configuration with completely different effects. Furthermore, it can be seen how useful the device of the present invention is when the above-described three-component system is used to produce polymer mutual arrays using a combination of fluidic alternate array elements. In order to facilitate understanding, figures 4 and 5 are shown in accordance with figure 1.
Since the X and Y axes are orthogonal to each other, it will be easier to understand.

〔Effect of the invention〕

(1) We succeeded in providing a new structure in which the laminar fluid interfaces are arranged in the Y-axis direction when the inlet and outlet parts are fixed (in the fourth and fourth quadrants).

(2) Provides a fluid alternating array element that, when directly combined with a structural fluid alternating array element that aligns laminar fluid interfaces in the X-axis direction, has the effect of eliminating or reducing the fluid alternating array effect, that is, reversing it. succeeded in doing so.

(3) Structure for arranging laminar fluid interfaces in the X-axis direction After arranging fluids mutually by combining a large number of fluid alternating arrangement elements, when combining with the third component,
By using the structure of the present invention, we succeeded in providing a new fluid alternating arrangement element in which a third component can be interposed in a layered manner so as to disrupt the laminar flow at approximately right angles without twisting it by 90 degrees. .

(4) This fluidic alternating array element can be combined with a conventional fluidic alternating array element, or can be used alone in multiple combinations.
It can be effectively used for alternate arrangement of fluids and fluid mixing.

(5) As a result, new fibers, films, and plastic molded products will be provided, and these will eventually become ultrafine fibers, antistatic fibers, films, plastics, ultrathin films, peelable fibers, films, and polymers. Mutual array fibers, films, plastics, etc. can now be easily provided.

[Brief explanation of drawings]

FIG. 1 shows an example of XY coordinates for defining and viewing the inlet of the alternating fluid array element and the arrangement of the inlet of the alternating fluid array element. FIG. 2 is a diagram showing a state of a conduit (flow path) from an inlet to an outlet of a conventional fluid alternating array element (a conduit that helps understand fluid flow and deformation state). Third
The figure is a diagram showing a state of a pipe (flow path) from an inlet to an outlet of the fluid alternating arrangement element according to the present invention (a pipe that helps understand the flow of fluid and the state of deformation). FIG. 4 is a perspective view (the outer periphery is omitted) of a conventional fluid alternating array element. Figure 5 shows
FIG. 2 is a perspective view (the outer periphery is omitted) of a fluid alternating array element according to the present invention.

Claims (1)

[Claims] 1. A fluid alternating arrangement element having a structure including at least one unit in which a shape-deforming part having one passage and a moving part having two passages A and B are connected in a conduit, wherein the shape-deforming part is It has a structure in which the cross-section of one passage maintains a parallelogram and the shape of the passage changes continuously without substantially changing the cross-sectional area perpendicular to the extending direction of the pipe, and the moving part has two passages that have the same shape and whose sum of cross-sectional areas orthogonal to the extending direction of the conduit is approximately equal to the adjacent cross-sectional area of the deformed portion at a position adjacent to the deformed portion; A fluid alternating array element characterized in that the centers of the two passages are bent without interfering with each other while being point-symmetrical to each other through the center line, and the two passages overlap each other at both ends of the moving part. In,
The entrances of the two passages are located in four quadrants of a plane divided by two mutually orthogonal X-axes X-O-X' and Y-O-Y' that are perpendicular to the direction in which the pipes extend. Entrance A of one passage is placed in the fourth quadrant Y-O-
When the inlet B of another passage is arranged in the X' plane so as to pass through the second quadrant X-O-Y plane, the fluid flow tubes are connected to the two outlets A' and B of one fluid alternating array element. The arrangement of the pipes up to (A, B
The center of each conduit (leading to 1. A fluid alternating arrangement element characterized by having a conduit configuration in which fluids A and B pass in the order of passing over a plane or a plane parallel to the plane.