JPS629369B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention can be used to continuously dilute a liquid, such as a sample liquid used for various measurements, to an appropriate concentration, or to continuously mix two or more different liquids. The present invention relates to the provision of a new diluting or mixing device suitable for

Conventional various measurements, such as dye concentration in dyeing,
Or when measuring the concentration of blood components, etc.
Operations such as dilution and mixing are performed to adjust the sample solution. Conventional methods and devices for this purpose include:
A screw method as illustrated in FIG. 1 is generally used. To explain this screw system using an example, although not shown, both the diluted or mixed liquid and the diluted or mixed liquid are
A fixed amount of liquid is collected from each of the storage liquid tanks, for example, by a liquid sampling device consisting of a combination of a piston and a cylinder.
They are collected in a mixing tank 2 and mixed by stirring by a rotary stirrer 3 such as a screw propeller installed in the tank 1. However, in this conventional method, because both liquids are simultaneously supplied in batches to the mixing tank 2 due to its mechanism, the uniformity of the dilution or mixed concentration in the tank 2 is temporarily disrupted, which tends to cause measurement errors, especially This method does not cause any problems when each batch is measured after a certain period of time, but it is not suitable for continuous measurement, and the agitation and mixing using a screw propeller does not provide good performance either. There is.

The present invention has been made in order to eliminate the drawbacks of such conventional dilution or mixing means, and is characterized by being a device for continuously diluting or mixing liquids. A mixing tank equipped with an air injection means for agitating and mixing the diluting or mixed liquid and the diluting or mixed liquid and containing a movable member that can move to seal and open the tank, and connected to the mixing tank. The method is comprised of a storage tank for temporarily storing the agitated and mixed liquid, and an overflow device with a backflow prevention member that can quantitatively adjust the amount of the liquid stored in the storage tank.

The present invention will be described in detail below with reference to the illustrated embodiments. FIG. 2 is an apparatus embodiment of the present invention;
Figure 4 is a detailed diagram of each main part of the device.
Although not shown, the liquid to be diluted or the mixed liquid and the diluted or mixed liquid can be used to prepare a certain amount of liquid under a required dilution or mixing ratio, such as a liquid sampling device consisting of a combination of a piston and a cylinder. The liquids are collected from various devices capable of quantitatively pumping up and supplying the liquid, and both of the collected liquids are collected separately and simultaneously into the mixing tank 5 shown in the drawing from each supply pipe 4, 4'. Both liquids collected in the mixing tank 5 are stirred and mixed by air jetted from an air jet hole 7 provided in a piston 6 installed in the tank 5 so as to be able to move up and down as shown in the figure. be done. To explain the structure of the mixing tank 5 in more detail, a piston 6 is installed in the tank 5 so as to be able to move up and down together with a shaft 8. The piston 6 is accompanied by vertical movement, and the mixing tank 5 is configured to be sealed and opened to the outside by opening and closing a communication hole 5a provided at the bottom of the mixing tank 5 as shown in FIG. Other than the provision of an air vent hole 9 at the top of the tank, the tank 5 has a substantially sealed structure to prevent leakage of liquid. Following the bottom of the mixing tank 5, there is a storage tank 1 for temporarily storing the liquid stirred and mixed by air injection.
The mixed liquid is stored in the tank 10 through the communication hole 5a, and an overflow device 11 is provided in the storage tank 10 to control the amount of liquid in the tank. This allows for quantitative adjustment. That is, the overflow device 11 is the fourth
As shown in detail in the figure, a check valve 12 is provided in communication with the storage tank 10 together with a float valve 13 which can float under hydraulic pressure, thus preventing the mixed liquid in the storage tank 10 When the amount exceeds a predetermined amount, the float valve 13 is pushed up by the hydraulic pressure to open the prevention valve 12, and the excess liquid is automatically discharged to the outside from the discharge port 14 of the device 11. .

To explain the operation of the present invention, when the diluted or mixed liquid and the diluted or mixed liquid are collected in the mixing tank 5 at the same time through the supply pipes 4 and 4' (at this time, the liquid supply device side, the piston 6, and the shaft 8
At the same time as the liquid is supplied, the shaft 8 descends to close the communication hole 5a,
(place so that tank 5 is sealed), shaft 8
Air is supplied to the piston 6 side by an air supply means such as an air supply hole or an air supply pipe (not shown) provided in the piston 6, and the air is jetted out from the air jet hole 7, so that both liquids are sufficiently stirred. mixed. When both liquids are sufficiently mixed, the piston 6 moves up via the shaft 8 (at this time, the liquid supply device moves on to collecting the next liquid), and as the communication hole 5a opens, the stirred and mixed liquid is transferred to the storage tank. It will flow out and move within 10 minutes. At this time, unnecessary liquid, ie, mixed liquid exceeding the required liquid amount, pushes up the float valve 13 of the check valve 12 to open it, overflows from the discharge port 14, and is discharged. When the agitated and mixed liquid moves into the tank 10 through the communication hole 5a, the liquid flows smoothly and easily through the air vent hole 9 provided in the upper part of the mixing tank 5. In this way, a certain amount of the diluted or mixed liquid obtained by mixing the two liquids stored in the tank 10 is used for various measurements, and 15 is the liquid on the side of the storage tank 10. The extraction tube is shown.

The present invention is as described above, and as compared to the conventional method, the effect of stirring and mixing both liquids is enhanced by air stirring, and the mixing tank 5 and the storage tank 10 are provided so as to be freely interconnected and disconnected via the piston 6. Therefore, continuous measurement is possible, and the measurement error can be made smaller than in the past. Furthermore, the presence of the overflow device 11 allows the amount of liquid in the storage tank 10 to be always adjusted to a constant amount, that is, only the amount of liquid required for measurement. When measuring liquid, it has excellent effects such as being able to eliminate measurement errors caused by mixing with previously supplied liquid. The scope of application of the present invention is not limited to the measurement described in the examples, but also to a wide range of applications where dilution or mixing operations are required, for example, in order to keep the processing bath conditions constant, the dilution or mixed solution under the same conditions is always used. Needless to say, it can be used suitably when needed.
It also has versatility as a dilution or mixing means.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a conventional dilution or mixing means, Fig. 2 is a side sectional view of an embodiment of the device of the present invention, Fig. 3 is a detailed view of the main part of the piston, and Fig. 4 is a main part of the check valve. FIG. 4, 4'...Liquid supply pipe, 5...Mixing tank, 6...Piston, 7...Air jet hole, 8...Shaft, 10...Storage tank, 11...Overflow device, 12...Return prevention valve.

Claims (1)

[Claims] 1 A device that continuously dilutes or mixes a liquid, which device is equipped with an air injection means to stir and mix the quantitatively sampled diluted or mixed liquid and the diluted or mixed liquid, and the device itself is movable. a mixing tank that accommodates a moving member that enables the tank to be sealed and opened; a storage tank that is connected to the mixing tank and temporarily stores the agitated and mixed liquid; 1. A continuous dilution or mixing device for a liquid, comprising an overflow device equipped with a backflow prevention member that can quantitatively adjust the amount of the liquid.