JPS6140362Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an injector for ejecting a second liquid into a first liquid and mixing both liquids.
In particular, the second liquid is ejected when the first liquid decelerates, and then the first liquid mixed with the second liquid is accelerated, thereby dispersing the second liquid into the first liquid. ,
Facilitates mixing of both liquids.

Conventional injectors for mixing two liquids have a structure that only injects the second liquid into the flow of the first liquid at the same speed at all times. Since both liquids are introduced into the next process while maintaining their current state, there is a problem in that the burden on the subsequent process for mixing both liquids increases.

Therefore, the purpose of this invention is to disperse the second liquid into the first liquid immediately after spouting it into the first liquid, thereby effectively mixing both liquids in the subsequent process. In particular, the purpose of this device is to disperse the second liquid into the first liquid by slowly changing the flow of the first liquid, and further, the purpose of this device is to disperse the second liquid into the first liquid by changing the flow rate of the first liquid. The purpose of this invention is to gradually change the first liquid flow without causing any

That is, in this invention, as in the illustrated embodiment, a main body 1 includes a first liquid inlet 2, a hollow part 3 communicating with the inlet 2, and an outlet 4 communicating with the hollow part 3.
At the same time, by changing the cross-sectional area of the hollow part 3, a decelerating part 3a of the first liquid flow is formed.
and the acceleration section 3b, the deceleration section 3a on the entrance 2 side,
A plurality of liquid spray ports 5 are formed with the accelerating part 3b facing the outlet 4, and are provided between the decelerating part 3a and the accelerating part 3b of the hollow part 3, for spouting a second liquid into the first liquid.
The present invention relates to an injector which is opened in the radial direction toward the peripheral wall of the hollow portion 3.

Next, this invention will be explained with reference to illustrated embodiments. This embodiment is an injector of an emulsifying device for producing an emulsified liquid by mixing the first liquid with oil and the second liquid with water.

That is, a hollow portion 3 is provided in the main body 1, and an inlet 2 for the first liquid is opened in the hollow portion 3. A portion 3c of the hollow portion 3 close to the inlet 2 is formed to have a relatively small diameter, and on the right side in FIG. A threaded portion 1a, which is a part of the main body 1 and has an outlet 4, is threadedly fixed into the groove 3e. Screwed part 1a
The outlet 4 has the same diameter as the portion 3c, and the inner portion thereof, which forms a part of the hollow portion 3, has a diameter that is gradually reduced toward the outlet 4. In the main body 1, in the hollow part 3 between the inlet 2 and the outlet 4, there is a small diameter part 3c, a reduction part 3a whose diameter gradually increases and its cross-sectional area increases, and a part 3a whose diameter is the most enlarged. An expanded diameter portion 3d and an acceleration portion 3b whose diameter is successively reduced and whose cross-sectional area is successively reduced are formed.
Further, a stepped portion 3f is formed between the expanded diameter portion 3d of the hollow portion 3 and the accelerating portion 3b by the inner end surface of the threaded portion 1a.

Further, a second liquid inlet 6 is provided on the end surface of the main body 1 opposite to the outlet 4, and this inlet 6 and the hollow part 3 are connected to each other.
A threaded portion 1b having a threaded groove is provided between the screw portion 1b, and the base end portion of a liquid guide pipe 7 having a liquid guide path 7a opened at its axis is screwed into the threaded portion 1b. Thus, the liquid guide pipe 7 communicates the liquid guide path 7a with the inlet 6, and connects the hollow part 3.
Cantilevered on the axis of the Further, the liquid guide path 7a of the liquid guide pipe 7 branches radially at the head 7b,
The tip of this branching path 7c is defined as the liquid dispersion port 5. Each liquid dispersion port 5 opens radially toward the peripheral wall of the expanded diameter portion 3d of the hollow portion 3. The liquid conduit 7 has a similar shape to the hollow part 3, and therefore, the first liquid flow path flowing from the inlet 2 to the outlet 4 has a cross section with a small diameter in the part 3c and a small diameter in the deceleration part 3a. It forms a ring shape that gradually becomes larger in diameter and gradually becomes smaller from the expanded diameter portion 3d to the acceleration portion 3b. A mixer is connected to the outlet 4.

Next, the function of this injector will be explained. The first liquid flows in from inlet 2, and the second liquid flows in from inlet 6.
liquid flows in. The ratio of the first liquid to the second liquid is 9:1
The ratio is adjusted in advance within a range of about 7 to 3, and the water flows in from each of the inlets 2 and 6 as described above.

The first liquid flowing in from the inlet 2 flows directly into the hollow part 3. The first liquid that first flows into the portion 3c of the hollow portion 3 reaches the deceleration portion 3a, where it reaches the expanded diameter portion 3d while reducing its speed. Hollow part 3 here
has the largest cross-sectional area, so the first
The flow rate of the liquid decreases the most. The second liquid, which has flowed from the inlet 6 through the liquid guide path 7a and the branch path 7c in the liquid guide pipe 7, flows from the liquid dispersion port 5 into the first liquid whose flow velocity has been reduced. . This situation is especially shown in FIG. 2, where the flow of the first liquid is shown by a broken line arrow, and the flow of the second liquid is shown by a solid line arrow, respectively. That is, the second liquid is ejected from a direction intersecting the flow direction of the first liquid whose flow velocity has decreased as it reaches the expanded diameter portion 3d, and the second liquid flows into the first liquid. Turbulence occurs in the liquid flow, and due to the influence of the jetting speed of the second liquid, both liquids change their directions outward, and immediately after that, they hit the step portion 3f. Then, a turbulent flow is generated between the liquid that bounces off the stepped portion 3f and the liquid that flows toward the stepped portion 3f, where the two liquids are mixed and flow into the accelerating portion 3b in this state.

In the accelerating part 3b, since the cross-sectional area of the hollow part 3 is gradually reduced, the flow rate of the mixed liquid increases and flows in the direction of the outlet 4. By increasing the flow velocity,
Even if a certain volume of the second liquid is collected in the first liquid, the collection of the second liquid is released and dispersed in such a manner that the second liquid is torn into the first liquid.
In this way, when the mixing of both liquids reaches a certain level, the mixed liquid is supplied from the outlet 4 to the next mixer.

As is clear from the above, according to this idea,
A deceleration part and an acceleration part are provided by changing the cross-sectional area of the hollow part along the flow direction of the first liquid,
In addition, a sprinkling port for the second liquid was placed between the deceleration part and the acceleration part, and the second liquid was mixed into the deceleration part for the first liquid, and then both liquids were accelerated. from,
Due to such a change in flow rate, both liquids can be supplied to the next step from the outlet in a state where mixing has progressed.
Therefore, the injector of this invention not only mixes the second liquid into the first liquid, but also advances the mixing of both liquids.
It is possible to effectively mix both liquids in the next process used for emulsification, etc., and by simply allowing both liquids to flow in from the inlet without requiring any special operation,
This has the effect of automatically mixing both liquids.

Furthermore, as in the embodiment described above, if a step is provided between the deceleration section and the acceleration section to generate turbulent flow, the mixing of both liquids can be further progressed.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of this invention.
FIG. 2 is an explanatory diagram of a liquid flow, which is a partially enlarged view of FIG. 1. In addition, in the figure, 1 is the main body, 2 is the inlet, 3 is the hollow part,
3a is a deceleration part, 3b is an acceleration part, 4 is an outlet, and 5 is a liquid dispersion port.

Claims (1)

[Claims for Utility Model Registration] (1) A first liquid inlet, a hollow portion communicating with the inlet, and an outlet communicating with the hollow portion are formed in the main body, and the By changing the cross-sectional area, a deceleration part and an acceleration part of the first liquid flow are formed, with the deceleration part being on the inlet side and the acceleration part being on the outlet side, and the deceleration part and the acceleration part of the hollow part are formed. a plurality of liquid sprinkling ports for spouting a second liquid into the first liquid, and the liquid sprinkling ports are opened in a radial direction toward a peripheral wall of the hollow portion. Features an injector. (2) The reduction section is formed by gradually increasing the cross-sectional area by enlarging the diameter toward the exit, while the accelerating section is formed by decreasing the cross-sectional area by decreasing the diameter toward the exit. An injector according to claim 1 of the claimed utility model registration.