JPS5811012B2 - Fluid quantitative fractionation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for collecting a desired amount of a desired fluid such as a component gas or liquid, and provides a new device that can accurately collect a certain amount of the fluid with a single touch operation. That is the main purpose.

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows a fluid quantitative fractionation device as an embodiment of the present invention, and 1 and 2 are rotating bodies that can rotate relative to each other around a rotation axis 2 with one surface 1a and 2a in sliding contact, Two independent arcuate fluid flow passages 3 and 4 are formed on the sliding surface 1a of the first rotating body 1 on two concentric circles centered on the rotation axis P.

Each of the flow passages 3 and 4 may be in the form of a groove or a bow as long as the fluid can flow therethrough, and the positions where they are formed may also be shifted in the circumferential direction as shown in the figure. Second
They may be connected by straight lines as shown by virtual lines in Figures A and B.

However, between the ends 3a-3b, 4a of each fluid flow passage 3.4
It is necessary for the interval -4b to equalize the central angles θ.

On the other hand, on the sliding contact surface 2a of the second rotating body 2, the same number of opening groups 5a, 5b, 5c, 6a, 6b are provided on the same circumference corresponding to each of the fluid flow passages 3, 4.

Two sets of 6c are drilled.

The interval between the openings in each set is set to be equal to the central angle θ formed by both ends of the fluid flow passages 3 and 4.

Therefore, each set of aperture groups 5a. 5b, 5c, 6a, 6b,
The number of 6c is determined by the central angle θ formed by both ends of the fluid flow path.

In the illustrated example, since the central angle θ of the flow paths 3 and 4 is 120°, the number of openings in each set is three.

Further, the formation positions of each set of openings 5a, 5b, 5c, 6a, 6b, and 6c must be selected in relation to the formation positions of the corresponding flow passages 3 and 4.

That is, when any two of the openings 5a to 5c are communicated by one fluid flow path 3, the two openings 6a to 6c are simultaneously connected to each other by the other fluid flow path 4. You need to choose.

Next, the second rotating body 2 has a plurality of ports 7 around it.
a, 7b, 7c, 8a, 8b, 8c are formed,
Each set of openings 5a, 5b, 5c.

6a, 6b, and 6c in one-to-one correspondence.

Of these ports, a metering body 9 is connected to a port 7b communicating with one of the openings 5b of the first set and a port 8b communicating with one of the openings 6b of the second set.
- The remaining ports 7a and 7c that communicate with the openings of one set of force cylinders are used as fluid inlets and carrier inlets, respectively, and the remaining ports 8a and 8c that communicate with the openings of the second set are respectively used as fluid sources. It is used as an outlet and a conveyor outlet.

Therefore, according to this configuration, by relatively rotating both the rotating bodies 1 and 2 by 120 degrees, the fluid is transferred from the fluid injection lower a to the fluid flow passage 3 → the measuring body 9 → the fluid flow passage 4 → the fluid flow as shown in FIG. 2A. A state in which communication is established up to the overflow port 8a, and a state in which the flow is communicated from the carrier inflow lower c to the fluid flow path 3 → the measuring body 9 as shown in FIG.
It is possible to switch to a state where → fluid flow path 4 → the conveyor outlet 8c are communicated.

Therefore, in the former state, the fluid 11 to be quantitatively sampled, such as component gas, is injected from the fluid injection lower a, and the measuring body 9
, and then switch to the latter state and allow the carrier 12 such as carrier gas to flow in from the carrier inflow lower c.
If the fluid stored in the measuring body 9 is expelled by the carrier,
A fixed amount of fluid 11 measured by the measuring body 9 can be obtained from the carrier outlet 8c.

Next, FIGS. 3 to 5 show other embodiments of the present invention, in which FIG. 3 shows an embodiment in which the fluid flow passages 3 and 4 are aligned in the circumferential direction, and FIG. This is an embodiment in which the second rotating body 2 is a cylindrical body, and the first rotating body 1 is inserted into the cylindrical body.

In this embodiment, the fluid flow passages 3 and 4 are connected to the first rotating body 1.
Openings 5a, 5b, 5c, 6a are provided on the outer circumferential surface 1a of the .

5b and 5c need to be formed on the inner circumferential surface 2a of the second rotating body 2.

It goes without saying that, contrary to this embodiment, the outer cylindrical body may be used as the first rotating body and the inner cylindrical body may be used as the second rotating body.

FIG. 5 shows openings 5a..., 6a... and ports 7a...
An example is shown in which the number of . . . , 8a, .

As mentioned above, the number of aperture groups is determined by the central angle θ formed by both ends of the fluid flow paths 3 and 4, so when increasing the number of apertures, the lengths of the fluid flow paths 3 and 4 are shortened accordingly. There is a need.

In the illustrated example, since the number of openings in each set is four, the central angle formed by both ends of the fluid flow path is 90°.

Also, due to the increase in numerical aperture, two measuring bodies (91, 92
) is used.

Although not shown in the drawings, the numerical aperture can be increased as much as desired by maintaining the numerical aperture as an integral multiple of the numerical aperture in the configuration shown in FIG. 1 or 5.

As explained above, according to the fluid quantitative separation device of the present invention, after the fluid to be quantitatively sampled is injected from the fluid injection lower a and stored in the measuring body, the rotating bodies 1 and 2 are rotated relative to each other. By letting the carrier flow in from the carrier inflow lower c and replacing the inside of the metering body with the carrier, the fluid measured by the metering body can be obtained from the outlet 8c. A one-touch operation of relatively rotating 2 has the effect of allowing a certain amount of fluid to be sampled accurately with the measuring body.

[Brief explanation of drawings]

FIG. 1 is an overall exploded perspective view showing one embodiment of the present invention, and FIG.
Figures A and B are diagrams explaining the operating state of the device in Figure 1, and Figure 3.
5 to 5 are views showing other embodiments of the present invention, FIGS. 3 and 4 are exploded perspective views, and FIG. 5 is an explanatory view of the operating state. DESCRIPTION OF SYMBOLS 1... First rotating body, 1a... Sliding surface, 2... Second rotating body, 2a... Sliding surface, 3, 4... Fluid flow path, 5a. 5b, 5c, 6a, 6b, 6c...Aperture group, 7a. 7b, 7c, 7d, 8a, 8b, 8c, 8d...port, 9,91,92...measuring body, P...rotation axis,
θ...Central angle.

Claims (1)

[Claims] 1. Two rotating bodies that can rotate relative to each other are provided with at least one surface in sliding contact, and the sliding surface of the first rotating body has each flow path on two concentric circles centered on its axis of rotation. Two independent fluid flow passages are formed with the central angles formed by both ends being equal, and two equal numbers of fluid flow passages are formed on the sliding surface of the second rotating body on the same circumference corresponding to each of the fluid flow passages. Sets of openings are drilled at predetermined intervals, and each set of openings communicates with a plurality of ports formed in the second rotary body in a one-to-one relationship, and at least the first set of the ports A measuring body is connected across a port communicating with one of the openings of the second set and a port communicating with one of the openings of the second set,
The remaining ports that communicate with the first set of openings are used as fluid inlets and carrier inlets, and the remaining ports that communicate with the second set of openings are used as fluid bath outlets and carrier outlets, respectively. Therefore, by relative rotation of both rotating bodies, it is possible to switch between a state in which communication is made from the fluid inlet to the fluid bath outlet via the measuring body, and a state in which communication is made from the carrier inlet to the carrier outlet via the measuring body. 1. A fluid quantitative fractionation device comprising: