WO2008068828A1

WO2008068828A1 - Aspirator and mixing apparatus and mixing method

Info

Publication number: WO2008068828A1
Application number: PCT/JP2006/324118
Authority: WO
Inventors: Shinichi Kawamoto
Original assignee: Shinichi Kawamoto
Priority date: 2006-12-03
Filing date: 2006-12-03
Publication date: 2008-06-12

Abstract

[PROBLEMS] To provide a mixing apparatus that has a simple structure and can generate a mixed phase stream composed of a liquid and granules, or composed of a liquid, granules and a gas, without applying pressure or the like to the mixture. [MEANS FOR SOLVING PROBLEMS] A mixing apparatus for mixing a liquid with granules. The mixing apparatus comprises an aspirator (2) and a mixture supply equipment (3) connected to the aspirator (2) and is characterized in that the aspirator (2) comprises a suction port (6) for aspirating the mixture, a jetting nozzle (4), which has a diameter reduced toward a jetting port (4b) and jets a liquid (16) through the jetting port (4b), an outer wall (7) for surrounding the jetting port (4b), a suction part (8) provided between the outer wall in its inner peripheral face (7a) and the jetting nozzle (4) in its outer peripheral face(4c), and a receiving nozzle (5) for receiving the liquid jetted through the jetting nozzle (4) and the mixture aspirated through the suction port (6), and the mixture supply equipment (3) is connected to the aspirator (2) in its suction port (6)and comprises a liquid supply part (12) and a granule supply part (11).

Description

Specification

Aspirator, mixing apparatus and mixing method

Technical field

[0001] The present invention relates to an aspirator for mixing particles and liquid, or particles, liquid and gas, and a mixing apparatus and mixing method using the aspirator.

Background art

[0002] Conventionally, it is known that liquid and gas or liquid and liquid can be easily mixed using an aspirator that is a kind of so-called suction pump, but condylar particles using an aspirator. It has been difficult to continuously mix powder and powdery particles and liquid, or particles and liquid and gas.

In order to cope with such a problem, several inventions relating to a mixed-phase flow generation device for liquid and granules have been disclosed.

[0003] Hereinafter, a "multiphase flow generator" according to the prior art will be described.

As a prior art related to the invention described in Patent Document 1, a method of directly supplying powder or granules to the suction port of a suction pump is disclosed.

According to such a method, if a solid (powder or granule) and a gas can be easily mixed, there is an effect.

In addition, the “multiphase flow generator” described in Patent Document 1 includes a special powder feeder and a slurry container in a tank that can be controlled to achieve a constant pressure condition, and a load cell is provided in the slurry container. It is characterized in that the powder and pressure fluid (for example, water) weighed by the above are supplied, stirred and mixed by a stirrer, and then, for example, led to a discharge conduit via an automatic knife gate valve.

According to the invention described in Patent Document 1 having the above-described configuration, the powder having a small size, a large particle size force, and a wide range up to the particle size can be applied over a wide concentration range over a pressure range from low pressure to high pressure. It has the effect that a solid 'gas, solid' liquid mixed phase flow can be generated.

[0004] Patent Document 2 discloses an invention relating to an apparatus for mixing iron powder with water under the name "powder / fluid mixing apparatus". The invention described in Patent Document 2 is provided with a powder supply pipe that communicates with a mainstream pipe through which water flows from a reservoir tank, and superconducting magnets are disposed on the upstream side and the downstream side of the powder supply pipe, respectively. It is a feature.

According to the invention according to Patent Document 2 having the above configuration, by exciting two superconducting magnets, a magnetic field is formed between the superconducting magnets, and thereby, an electromagnetic powder directed to the mainstream pipe side with iron powder having a magnetic susceptibility X is formed. If the force F (=% -B-dB / dz) acts and the iron powder 11 in the reservoir tank 3 can be moved to the mainstream pipe side, it has a positive effect.

At this time, when the iron powder passes through the symmetry point, a reverse electromagnetic force ^ is generated, but it is possible to continue to move the iron powder by the combined force of the inertia force Fi and the suction force of the water flowing through the main flow pipe. As a result, it can flow into the mainstream pipe.

Therefore, there is an effect that the iron powder in the reservoir tank can be mixed with water without pressurization.

Patent Document 1: Japanese Patent Laid-Open No. 5-103968

Patent Document 2: JP-A-8-332365

Disclosure of the invention

Problems to be solved by the invention

However, as disclosed in Patent Document 1 described above, in the method of directly supplying particles to the suction port of the aspirator, liquid and particles, or liquid and particles and gas are supplied. It was impossible to generate a mixed phase flow.

Further, according to the “multiphase flow generating device” disclosed in Patent Document 1, a mixed phase flow in which a desired amount of solid is mixed with a liquid can be generated, but the equipment itself is expensive and the device is It is necessary to secure sufficient space for installation. For example, in the case where it is necessary to generate a mixed-phase flow in which granular detergent and water are mixed, household equipment has a cost-effective viewpoint. There was a problem that it was difficult to use.

[0007] According to the invention as disclosed in Patent Document 2, although the particles subjected to the action of electromagnetic force and water can be easily mixed, they are used for the particles not affected by the action of electromagnetic force. There was a problem that we could not do it.

[0008] The present invention has been made in response to the strenuous conventional situation, and is mixed with a simple structure. To provide an aspirator, a mixing apparatus, and a mixing method capable of generating a mixed phase flow in which liquid and particles, or a mixture of liquid, particles, and gas are generated without applying pressure to the object. .

Means for solving the problem

[0009] In order to achieve the above object, an aspirator according to claim 1 is an aspirator used in a mixing device for mixing a liquid and a granule or a liquid, a granule and a gas. A suction port for sucking the mixture, an injection nozzle for reducing the diameter toward the injection port and for injecting the injection rocker liquid, an outer wall containing the injection port, an inner peripheral surface of the outer wall, and an outer peripheral surface of the injection nozzle And a receiving nozzle for receiving the liquid jetted from the jet nozzle and the mixture sucked from the suction port. The receiving port of the receiving nozzle has a concave section in the outer periphery. A groove portion is provided.

In the aspirator having the above-described configuration, the jet nozzle has a function of increasing the flow velocity of the liquid flowing in the jet nozzle by reducing the diameter by directing the jet nozzle. As a result, when the liquid ejected from the ejection port is accommodated in the receiving nozzle, the suction portion generates suction pressure, that is, the suction portion forms a lower pressure state than the suction port. Have.

Along with this action, the suction loca also has the action of sucking the mixture to the suction part.

Furthermore, the receiving nozzle has the effect of mixing the liquid ejected from the ejection nozzle and the mixture to be derived from the force of the suction portion to generate a mixed phase flow of liquid and particles or liquid, particles and gas. Have.

And the groove part provided in the outer periphery of a receiving port has the effect | action of accommodating the granule attracted | sucked from a suction port temporarily. As a result, it has the effect of preventing the particles from abruptly concentrating on the receiving port when the mixture flows into the receiving nozzle from the suction part. Further, the groove section having a concave cross section has the effect of disturbing the flow of the liquid and the granule or the mixture of the liquid, the granule and the gas in the succession section.

[0010] The aspirator according to the invention of claim 2 is an aspirator used in a mixing device for mixing a liquid and a granule or a liquid, a granule and a gas, and sucks an object to be mixed. A suction port to be pulled, an injection nozzle that ejects liquid by reducing the diameter toward the injection port, an outer wall that encloses the injection port, an inner peripheral surface of the outer wall, and an outer peripheral surface of the injection nozzle And a receiving nozzle for receiving the liquid jetted from the jet nozzle and the mixture sucked from the suction port, where L is the diameter of the jet port and L is the diameter of the receiver port.

1 2

, L and L satisfy L <L, and the distance from the center of the suction port to the plane forming the injection port L

1 2 1 2 3 is characterized by satisfying L≥5L.

3 1

The distance L from the center of the suction port to the plane that forms the injection port is less than ≥5L.

3 3 1 has the effect of generating a vacuum state in the suc- sion part to the extent that liquid and particles can be sucked.

When the diameter of the injection port (L) and the diameter of the receiving port (L) satisfy L <L, the injection port

1 2 1 2

Both the liquid ejected from the liquid and the mixture to be derived derived from the force of the suction part are accommodated in the receiving nozzle.

The aspirator according to claim 3 is an aspirator according to claim 1 or claim 2, wherein the distance of the receiving nozzle to the receiving loca discharge port is the diameter of the receiving port. It is characterized by being 16 times or more.

The aspirator having the above-described configuration is set to the distance from the receiving nozzle to the receiving loca discharge port 16 times the diameter of the receiving port in consideration of the action of the respective inventions described in claim 1 or claim 2. With the above, the liquid and particles that move and move in the receiving nozzle, or the liquid It has the effect of applying inertial force to the multiphase flow while mixing the multiphase flow of the body, granules and gas substantially homogeneously.

[0012] The mixing device according to the invention described in claim 4 is a mixing device for mixing a liquid and a granule, and includes an aspirator and a mixture supply device connected to the aspirator. The aspirator has a suction port for sucking the mixture, an injection nozzle for reducing the diameter toward the injection port and for injecting liquid from the injection port, an outer wall containing the injection port, an inner peripheral surface of the outer wall, and an injection nozzle And a receiving nozzle for receiving the liquid sprayed from the spray nozzle and the mixture to be sucked from the suction port. It is connected to the mouth, and includes a liquid supply unit and a granule supply unit.

In the mixing apparatus configured as described above, the jet nozzle of the aspirator has a function of increasing the flow velocity of the liquid flowing in the jet nozzle by contracting the diameter of the jet nozzle toward the jet port. As a result, when the liquid to be ejected is also contained in the receiving nozzle, the suction nozzle generates suction pressure in the suction portion, that is, the suction portion forms a pressure state lower than the suction port. Have

Furthermore, the receiving nozzle has an action of mixing the liquid ejected from the ejection nozzle and the mixture to be derived from the force of the suction portion to generate a mixed phase flow of liquid and particles.

The liquid supply unit and the granule supply unit have an action of supplying the liquid and the granule to the mixture supply facility, respectively. As a result, the mixture supply facility has the liquid and the granule at the suction port of the aspirator. It has the effect | action of supplying continuously.

[0013] The mixing apparatus according to claim 5 is a mixing apparatus for mixing a liquid, a granular material, and a gas, and includes an aspirator and a mixture supply equipment connected to the aspirator. The aspirator has a suction port for sucking the mixture, a spray nozzle that is reduced in diameter toward the spray port and sprays liquid from the spray port, an outer wall that contains the spray port, and an inner peripheral surface of the outer wall. A suction part formed between the outer peripheral surface of the spray nozzle, a receiving nozzle for receiving the liquid sprayed from the spray nozzle and the mixture sucked from the suction port; The mixture supply facility is connected to the suction port of the aspirator and includes a liquid supply unit, a granule supply unit, and a gas supply unit.

Further, the receiving nozzle has an action of mixing the liquid ejected from the ejection nozzle and the mixture to be derived from the force of the suction portion to generate a mixed phase flow of the liquid, particles and gas. Each of the liquid supply unit, the granule supply unit, and the gas supply unit has an action of supplying the liquid, the granule, and the gas to the mixture supply facility. As a result, the mixture supply facility includes the aspirator. It has the effect of continuously supplying a mixture of liquid, particles and gas to the suction port.

[0014] The mixing device according to claim 6 is the mixing device according to claim 4 or claim 5, wherein the granule supply unit is a liquid in the mixture supply facility. It is arrange | positioned above a supply part, It is characterized by the above-mentioned.

The mixing device having the above configuration is supplied from the liquid supply unit by arranging the granule supply unit above the liquid supply unit in addition to the same operation as that of the invention described in claim 4 or claim 5. This has the effect of preventing the particles supplied from the particle supply unit from sticking due to the moisture of the liquid.

[0015] A mixing apparatus according to claim 7 is the mixing apparatus according to any one of claims 4 to 6, wherein the mixing apparatus is claimed in claims 1 to 6. It is characterized by using the aspirator described in any one of the three items of the range.

In addition to the action of the aspirator described in any one of claims 1 to 3, the mixing device having the above-described configuration is a shift of any one of claims 4 to 6. It has the same effect | action as the mixing apparatus as described in (1). [0016] The mixing method according to claim 8 is a method of mixing liquid and granules, or liquid and granules, and gas, wherein the liquid and granules or the liquid and granules from the suction port of the aspirator. And gas is sucked.

In the mixing method configured as described above, the aspirator sucks the liquid and the particles, or the mixture consisting of the liquid and the particles from the suction port, and mixes with the liquid that is the pressure fluid for generating the suction force. Have

The invention's effect

[0017] According to the invention described in claim 1 of the present invention, the mixture to be sucked by the suction loca and the liquid ejected from the ejection nozzle are mixed to generate a multiphase flow and discharged from the receiving nozzle. Has the effect of

In particular, by forming a groove having a concave cross section on the outer periphery of the receiving port, a part of the particle is temporarily accommodated in the groove when the particle introduced into the sucrose portion is led to the receiving port. And it is possible to prevent the particles introduced into the sac- tion part from concentrating on the receiving port. As a result, the force of the saction part can be gradually led out to the receiving port, and the effect of preventing the particle from clogging the receiving port is exhibited.

In addition, by forming the groove section having a concave cross section, the flow in the suc- tion part of the liquid and particles sucked from the suction port, or the mixture composed of the liquid, particles and gas is disturbed. The effect is achieved that the mixture can be mixed and stirred in the part.

Therefore, the aspirator according to claim 1 can generate a continuously mixed and stirred liquid and granule or liquid, granule and gas mixed phase flow without clogging. An excellent effect can be expected.

[0018] According to the invention described in claim 2 of the present invention, the mixture to be sucked by the suction loca and the liquid jetted from the jet nozzle are mixed to generate a multiphase flow and discharged from the receiving nozzle. Has the effect of letting

In particular, the distance L from the center of the suction port to the plane forming the injection port should be ≥5L.

3 3 1 By satisfying, continuous particles and liquid or continuous particles and liquid and gas Has the effect of being able to be sucked.

In addition, when the diameter of the injection port (L) and the diameter of the receiving port (L) satisfy L <L, the injection port

1 2 1 2

It is possible to introduce both the liquid ejected from the liquid and the mixture derived from the force of the suction portion into the receiving nozzle.

Therefore, according to the aspirator described in claim 2, it becomes possible to continuously suck the liquid and the granule or the mixture of the liquid and the granule and the gas from the suction port. It has the effect that a multiphase flow of particles or of liquid, particles and gas can be generated.

[0019] According to the invention described in claim 3 of the present invention, up to the receiving loca discharge port of the receiving nozzle in consideration of the effects of the respective inventions described in claim 1 or claim 2. By making the distance of 16 or more times the diameter of the receiving port, the mixed phase flow of liquid and particles or liquid, particles and gas is mixed almost uniformly in the receiving nozzle, and at the same time, high V, When the inertial force is applied and the receiving nozzle force is able to inject well, it has the effect!

As a result, when the pipe is disposed downstream of the invention described in claim 3, the multi-phase flow that merely prevents a decrease in the pressure of the multi-phase flow due to the pipe resistance is aspirator according to claim 3. It is possible to prevent backflow to the suction port.

[0020] In the invention described in claim 4 of the present invention, the mixture supply facility includes a liquid supply part and a granular material supply part, respectively, so that the liquid is continuously provided to the suction port of the aspirator. And particles can be supplied.

In addition, the aspirator has the effect of being able to generate a multiphase flow by mixing the mixture sucked from the suction port and the liquid jetted from the jet nozzle and ejecting it from the receiving nozzle.

Therefore, according to the invention described in claim 4, it is possible to produce a mixed phase flow by mixing the liquid and the particles, and thus has an effect.

Accordingly, it is possible to provide a mixing apparatus that can continuously mix liquid and particles at a low cost with a very simple structure, and has a V effect.

[0021] In the invention according to claim 5 of the present invention, the mixture supply facility is a liquid supply. By providing each of the part, the particle supply part, and the gas supply part, it is possible to continuously supply liquid, particles, and gas to the suction port of the aspirator.

Further, the aspirator has the effect of being able to mix the liquid sucked from the suction port with the liquid jetted by the jet nozzle force and discharge it from the receiving nozzle.

Therefore, according to the invention described in claim 4, there is an effect that the liquid, the granule, and the gas can be mixed to continuously generate a multiphase flow.

Therefore, it is possible to provide a mixing device that can continuously mix liquid, particles, and gas at a low cost with an extremely simple configuration, which has a positive effect.

[0022] The invention described in claim 6 of the present invention has the same effect as that of the invention described in claim 4 or claim 5, and the granular material supply part is disposed above the liquid supply part. By doing so, it is possible to prevent clogging of the granule supply unit due to the moisture of the liquid supplied from the liquid supply unit.

As a result, it is possible to prevent the mixing apparatus described in claim 6 from being defective and to improve the reliability of the apparatus itself.

[0023] The invention described in claim 7 of the present invention has the same effect as the invention described in any one of claims 1 to 3, and claims 4. The same effect as that of the invention described in any one of claims 6 to 6 is obtained.

[0024] The invention according to claim 8 of the present invention is that the liquid and the particles or the liquid and the particles and the gas are sucked from the suction port of the aspirator, thereby mixing with the liquid without applying pressure to the mixture. If you can, it has a positive effect.

As a result, there is an effect that it is possible to provide a method for easily generating a multiphase flow in which a liquid and granules or a mixture of liquid, granules and gas is generated.

Brief Description of Drawings

FIG. 1 is a cross-sectional view of an aspirator according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a mixing apparatus according to an embodiment of the present invention.

FIG. 3 is a partial cross-sectional view of the mixing apparatus according to the embodiment of the present invention.

FIG. 4 is a partial cross-sectional view showing a state in which the liquid and the mixture are mixed in the aspirator according to the embodiment of the present invention. Explanation of symbols

1 ... Mixing device

2 ... Aspirator

3 ... Mixture supply equipment

4 ... Nozzle injection

4a ... Inlet

4b ... Injection port

4c… Outer peripheral surface

5 ... Receiving nozzle

5a: Receptor

5b… Discharge port

5c… Inner peripheral surface

6… Suction port

7… Outer wall

7a… Inner peripheral surface

8 ... Succession

9 ... Groove

10 ... Cylinder

10a… Upper opening

11 ... Particle supply unit

12 ... Liquid supply section

12a ... Discharge port

13 ... Orifice

14 ... Drain piping

15 ... Granule

16 ... Liquid

17 ... Bubbles

18 ... Multiphase flow 19 ... Mixed material

20 ... Gap

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an aspirator according to the best embodiment of the present invention and a mixing apparatus used therefor will be described in detail with reference to FIGS. 1 to 3.

[0028] First, an aspirator according to an embodiment of the present invention will be described in detail with reference to FIG.

The aspirator 2 according to the embodiment of the present invention is an aspirator for mixing a liquid and a particle or a liquid, a particle and a gas.

As shown in FIG. 1, the aspirator 2 according to the present embodiment is provided with an outer wall 7 containing the injection port 4b in an injection nozzle 4 for receiving and injecting a pressure fluid, for example, water, A receiving nozzle 5 is connected to the outer wall 7 concentrically with the injection nozzle 4. Further, in the injection nozzle 4, the diameter L of the injection nozzle 4b is smaller than the diameter L of the inflow port 4a so that the flow velocity of the pressure fluid that flows in toward the injection port 4b increases.

Ten

Further, in the aspirator 2 according to the present embodiment, the suction port 6 for allowing the liquid and the particles, or the liquid, the particles and the gas to flow into the aspirator 2 is formed, and the inner peripheral surface 7a of the outer wall 7 and the injection nozzle 4 is formed between the outer peripheral surface 4c of FIG. 4 and a suction portion 8 for guiding the liquid and particles sucked from the suction port 6 or the liquid, particles and gas to the receiving port 5a of the receiving nozzle 5. .

According to the aspirator 2 having the above-described configuration, the mixed fluid composed of the liquid and the granule or the liquid, the granule and the gas is mixed by mixing the pressure fluid ejected from the ejection nozzle 4 and the mixture to be sucked from the suction port 6. The effect that a flow can be generated is exhibited.

In particular, in the aspirator 2 according to the present embodiment, the inner diameter L force injection of the receiving nozzle 5

2 The nozzle 4 is configured to be larger than the diameter L of the nozzle 4b.

1

This is because when the liquid and the particles are sucked by the aspirator 2 according to the present embodiment, the volume of the liquid and the particles hardly changes, so the mixture sucked from the suction port 6 and the jet nozzle 4 force jet In order to ensure that both liquids stored in the receiving nozzle 5 The inner diameter L of the nozzle 5 must be configured larger than the diameter L of the injection port 4b of the injection nozzle 4.

twenty one

Because there is.

More preferably, the inner diameter L of the receiving nozzle 5 is equal to the diameter L of the injection port 4b of the injection nozzle 4.

Desirably 1.5 to 1.7 times 2 1.

This is when the inner diameter of the receiving nozzle 5 L 1S is smaller than 1.5 times the diameter L of the nozzle 4b.

twenty one

May reduce the fluidity of the multiphase flow in the receiving nozzle 5 and may not generate a sufficient suction force at the suction port 6, and the inner diameter L force of the receiving nozzle 5 and the diameter L of the injection port 4b of 1.7 L

2 If it is larger than 1 time, there will be a gap between the multiphase flow and the inner peripheral surface of the receiving nozzle 5 V, the suction part 8 will not always be able to generate suction pressure. This is because there is a possibility that a malfunction may occur, and as a result, a sufficient suction force cannot be continuously generated at the suction port 6.

[0030] It is also known that the suction pressure generated in the suction section 8 increases as the distance from the plane forming the injection port 4b of the injection nozzle 4 to the center of the suction port 6 increases. In addition, in the aspirator 2 according to the present embodiment, it is necessary to suck the liquid and the particles, or the liquid and the particles, and the gas from the suction port 6 at the same time, so the suction pressure of the suction portion 8 is kept high. It is necessary to keep it.

Therefore, in the aspirator 2 according to the present embodiment, the distance L from the plane forming the injection port 4b of the injection nozzle 4 to the center of the suction port 6 is at least 5 times the diameter L of the injection port 4b.

3 It is configured to be 1.

Therefore, by setting the distance L to the center of the suction port 6 as described above,

Three

In the aspirator 2 according to the embodiment, the effect that the liquid and the particles or the liquid, the particles, and the gas can be continuously sucked from the suction port 6 is exhibited.

[0031] Further, in the aspirator 2 according to the present embodiment, the diameter L of the suction port 6 is injected.

The size is set to 2.5 times the diameter L of 4 ports 4b.

2

This is because the diameter L of the suction port 6 is set larger than 2.5 times the diameter L of the injection port 4b.

4 1

In this case, there is a possibility that sufficient suction force is not generated at the suction port 6 and liquid and particles or liquid, particles and gas cannot be continuously sucked from the suction port 6 into the suction part 8. .

On the other hand, the suction port 6 is large enough not to be easily clogged by the sucked particles. Must be set to For this reason, the diameter L of the suction port 6 is a particle that is sucked from the suction port 6.

Four

Desirable to be larger than the maximum diameter.

Therefore, in the aspirator 2 according to the present embodiment, the diameter L of the suction port 6 is the suction

4 Larger than the maximum diameter of the particles sucked from 6 and more than 2.5 times the diameter L of the injection port 4b

1

It is desirable to set a small value.

Further, in the aspirator 2 shown in FIG. 1, the clogging between the injection port 4b of the injection nozzle 4 and the reception port 5a is caused when the granular material guided to the suc- tion part 8 flows into the reception port 5a of the reception nozzle 5. The distance lL from the outer peripheral surface 4c of the injection port 4b to the inner peripheral surface of the receiving nozzle 5 needs to be set larger than the maximum diameter of the particles to be mixed so as not to be stuck.

7

[0032] In the aspirator 2 according to the present embodiment, the receiving nozzle 5 is configured so that the liquid and the granule, or the liquid, the granule, and the gas smoothly flow from the suction portion 8 to the receiving nozzle 5. It is desirable to increase the inner diameter toward the receiving port 5a.

2

That is, in the cross-sectional view of the aspirator 2 as shown in FIG. 1, the outer peripheral surface 4c in the vicinity of the injection port 4b and the inner peripheral surface 5c in the vicinity of the receiving port 5a are substantially parallel or in the vicinity of the injection port 4b. It is desirable that the angle formed by the outer peripheral surface 4c and the inner peripheral surface 5c in the vicinity of the receiving port 5a be widened toward the sac- tion portion 8.

In the aspirator 2 according to the present embodiment, the length of the receiving nozzle 5, that is, the distance L from the receiving port 5 a to the discharge port 5 b is 16 times the inner diameter L of the receiving nozzle 5. more than

6 2

Is set.

In this way, the length L of the receiving nozzle 5 is set to 16 times or more the inner diameter L of the receiving nozzle 5.

6 2

In this case, the mixed phase flow flowing in the receiving nozzle 5 is mixed to be substantially homogeneous, and a higher inertia force can be applied.

As a result, the effect of suppressing the pressure loss of the mixed phase flow of the liquid and the granule or the liquid, the granule and the gas from the discharge port 5b of the receiving nozzle 5 can be exerted vigorously. When the length L of the receiving nozzle 5 is 16 times or more the inner diameter L of the receiving nozzle 5

6 2

Details of the action and effect will be described later.

Therefore, even when a pipe is connected to the discharge port 5b of the aspirator 2, it is possible to expect the effects of V, V, and so on, which are unlikely to cause a mixed phase reverse flow due to pipe resistance. As described above, by using the aspirator 2 according to the present embodiment, the liquid and the particles, or the liquid, the particles, and the gas can be easily mixed without being pressurized, and further, the aspirator is used. If the multiphase flow generated in the nozzle 2 can be ejected vigorously from the outlet 5b of the receiving nozzle 5, it has an excellent effect.

Therefore, an excellent effect of providing a liquid / granule or liquid / granule / gas mixing device with a very simple configuration and low cost can be achieved.

In particular, a mixed phase flow in which liquid, particles, and gas are mixed facilitates mixing of the liquid and particles. For example, a mixed phase flow in which liquid 16 is water and granular 15 is a detergent is mixed. In addition, when a mixed phase flow in which air is mixed in addition to these is used as the washing water, it is possible to omit the trouble of applying the detergent to the object to be washed. ) A high water-saving effect can be awaited by mixing a gas with a multiphase flow.

In addition, when the above-mentioned multiphase flow consisting of a single liquid (solid) and one gas is used for body washing, massage to the skin by bubbles that are refined by the mixing process in the aspirator 2 The effect and the high cleaning effect by the fine bubble itself can also be expected.

In the aspirator 2 according to the present embodiment, as shown in FIG. 1, a groove 9 having a concave cross section is formed on the outer periphery of the receiving port 5a.

When such a groove portion 9 is provided, it is possible to prevent the clogging caused by abrupt concentration at the receiving port 5a of the granular force receiving nozzle 5 flowing into the succession portion 8 from the suction port 6 and V. The effect is demonstrated.

Details of the operation and effect of the groove 9 will be described later.

Next, the mixing apparatus according to the present embodiment will be described in detail with reference to FIG. 2. FIG. 2 is a cross-sectional view of the mixing apparatus according to the present embodiment. The same parts as those described in FIGS. 1 to 3 are denoted by the same reference numerals, and description of the configuration is omitted.

As shown in FIG. 2, the mixing apparatus 1 according to the present embodiment is such that the mixture supply equipment 3 is connected to the suction port 6 of the aspirator 2 as described above. The same liquid as the liquid 16 supplied to the injection nozzle 4 in the cylinder 10 having an opening at the top The liquid supply unit 12 for supplying the body 16 and the granule supply unit 11 for supplying the particles while dispersing the particles are connected to each other, and the liquid 16 ejected from the ejection nozzle 4 should be piped from the suction port 6 by any chance. A drain pipe 14 is provided for discharging the liquid 16 to the outside when it flows backward into the body 10.

In this way, by connecting the mixture supply equipment 3 including the granule supply unit 11 and the liquid supply unit 12 to the suction port 6 of the aspirator 2, the liquid 16 is continuously supplied to the suction unit 8 through the suction port 6. Thus, the excellent effect that the particles 15 and the particles 15 can be supplied is exhibited.

[0037] As disclosed in Patent Document 1, when mixing a granule and a liquid, water is supplied as a pressure fluid to an aspirator, and the granule or powder is supplied to the suction port. When the granule feeder was connected directly, it was unable to guide the granule from the suction port of the aspirator continuously and stably.

This is because, in the structure as described above, part of the water flowing in the aspirator becomes moisture and rises up to the suction port, causing particles to be sucked around the suction port and causing clogging. This is because only air that is lighter than the particles is sucked from the suction port.

Therefore, as a result of diligent research, the inventor has found that the above-described problems can be avoided by simultaneously sucking liquid and particles, or liquid, particles and gas from the suction port 6 of the aspirator 2. As a result, the inventors have arrived at the respective inventions described in claims 1 to 8 of the present application.

Therefore, by using a method in which liquid and particles, or liquid and particles and gas are simultaneously sucked from the suction port of the aspirator, the liquid and particles or the liquid and particles are If a multi-phase flow mixed with a gas can be easily generated, an excellent effect is exhibited.

[0038] Further, when the aspirator 2 is used to generate a mixed phase flow 18 of the liquid 16 and the granule 15 or the liquid 16, the granule 15 and the gas, the granule 15 supplied from the granule supply unit 11 is used. If the amount of particles contained in a unit volume of the multiphase flow 18 can be easily changed simply by changing the amount of the liquid, it has a positive effect.

Therefore, according to the mixing apparatus 1 according to the present embodiment, in the multiphase flow 18 with a simple structure. If a mixing device capable of easily adjusting the amount of particles to be produced can be provided at low cost, the effect is exhibited.

[0039] Further, in the mixture supply facility 3 according to the present embodiment, the granular material supply unit 11 is arranged vertically above the liquid supply unit 12 and is V.

More specifically, the granular material supply unit 11 is disposed in the upper opening 10a of the cylindrical body 10, the liquid supply unit 12 is disposed on the side wall of the cylindrical body 10, and further vertically above the liquid supply unit 12. In addition, a drain pipe 14 is arranged vertically below the granule supply unit 11.

In this way, in the mixture supply facility 3, the particle supply unit 11 is disposed above the liquid supply unit 12 in the lead direction so that the particles 15 supplied from the particle supply unit 11 are aspirator 2. The effect of preventing clogging due to moisture adhering before reaching the suction port 6 is exhibited.

Further, as shown in FIG. 2, in the mixing apparatus 1 according to the present embodiment, the connection portion between the cylinder 10 and the particle supply unit 11, that is, the upper opening 10a and the supply port of the particle supply unit 11 It is desirable to provide a gap D between them.

As described above, when the gap D is provided in the connecting portion between the cylinder 10 and the granule supply unit 11, a part of the moisture generated from the liquid 16 supplied into the cylinder 10 is transferred from the gap D to the outside of the mixing device 1. Therefore, it is possible to more effectively prevent the particles 15 from adhering to the inside of the cylinder 10 or the particle supply unit 11.

[0040] In addition, the gap D is a cylindrical body from the outside of the mixing apparatus 1 when the aspirator 2 according to the present embodiment mixes air as a gas in addition to the liquid 16 and the granules 15. It also acts as a gas supply unit for supplying air into the air.

As a result, by using the mixing device 1 according to the present embodiment as shown in FIG. 2, the particles 15 that are the mixture and the liquid 16 and the particles 15 that do not apply any pressure to the gas, or The effect that the liquid 16, the granules 15 and the air can be mixed is exhibited.

In the mixture supply facility 3 shown in FIG. 2, by arranging the drain pipe 14 vertically above the liquid supply unit 12 and vertically below the particle supply unit 11, in the unlikely event, Even when the liquid 16 sprayed from the nozzle 4 force flows back into the cylinder 10 through the suction part 8, it quickly passes through the drain pipe 14 before reaching the particle supply part 11. It has the effect that it can be discharged to the outside.

As a result, the excellent effect of preventing the mixing device 1 from being damaged by the backflow of the liquid 16 is exhibited.

[0041] Next, in the mixing apparatus 1, the liquid 16 and the granule 15 or the liquid 16 and the granule 15 and the gas are mixed by the mixture supply equipment 3 and the aspirator 2 as shown in FIGS. This will be described in detail with reference to 3.

In order to mix the liquid 16 and the particles 15 or the liquid 16 and the particles 15 and the gas using the mixing apparatus 1 according to the present embodiment, as shown in FIG. A liquid 16 that is a pressure fluid, for example, water, may be supplied from the inlet 4a force toward the injection port 4b and injected from the injection port 4b to the receiving nozzle 5.

At this time, since a pressure lower than the surroundings is generated in the gap formed by the injection port 4b and the receiving port 5a, that is, this portion is in a state where suction pressure is generated, the contained matter in the suction portion 8 is When being drawn into the receiving nozzle 5, a suction force is generated at the suction port 6 of the aspirator 2, and the particles 15 and liquid 16 accommodated in the cylinder 10 or the particles 15 and liquid 16 and the gas The body is sucked into the succession part 8.

As a result, a multiphase flow consisting of liquid (granular) solid or a multiphase flow consisting of liquid (granular) solid and gas force can be generated in the receiving nozzle 5.

[0042] In the mixing device 1 according to the present embodiment, the total volume of the liquid 16 that can be sucked from the suction port 6 and the volume of the particles 15 is the volume of the particles 15 supplied from the particle supply unit 11. When the sum of the liquids 16 supplied from the liquid supply unit 12 is larger than the sum of the liquids 16, the air in the cylinder 10 is sucked into the suction unit 8 from the suction port 6, and the aspirator 2 A multiphase flow 18 in which air (bubbles 17) is mixed is generated.

In the case opposite to the above case, that is, the total volume of the liquid 16 and the particles 15 that can be sucked from the suction port 6 is equal to the volume of the particles 15 supplied from the particle supply unit 11 and the liquid. When the sum of the liquids 16 supplied from the supply unit 12 is smaller than the sum of the liquids 16, only the liquid 16 and the particles 15 are sucked from the cylinder 10, so that the mixed phase in which the liquid 16 and the particles 15 are mixed in the aspirator 2. Stream 18 is generated.

[0043] Further, in the mixing apparatus 1 according to the present embodiment, in addition to the liquid 16 and the granules 15, other than air When the gas is mixed, the upper opening 10a of the cylinder 10 and the particle supply unit 11 are connected so as to be in an airtight state, and the desired gas and the particle 15 are supplied from the particle supply unit 11 while being mixed. Alternatively, the granular material supply unit 11 and the liquid supply unit 12 are connected to the mixture supply facility 3 so as to be in an airtight state, and a gas supply unit for supplying a desired gas may be provided in the cylindrical body 10. .

At this time, it is necessary to provide a backflow prevention mechanism such as a check valve so that air of an external force does not flow into the drain pipe 14.

Further, it is desirable that the gas supply unit for supplying a desired gas is provided vertically above the liquid supply unit 12.

[0044] Thus, the mixing device 1 according to the present embodiment as described above merely changes the amount of the liquid 16 supplied from the liquid supply unit 12, and the liquid 16, the granules 15 and the air are supplied. If it can be used as a mixing device for mixing or as a mixing device for mixing the liquid 16 and the particles 15, it has the effect.

In particular, when a liquid different from the liquid 16 supplied to the injection nozzle 4 is supplied from the liquid supply unit 12, two types of liquid and the particle 15 or two types of liquid and the particle 15 and air are used. Can be mixed.

2 illustrates an example in which only one liquid supply unit 12 is provided in the mixture supply facility 3, but the liquid supply units 12 may be provided at a plurality of locations of the cylindrical body 10. . In this case, there is an effect that plural kinds of liquids can be simultaneously supplied to the suction port 6. In this case, it is desirable to provide each liquid supply section 12 on the lower side in the vertical direction than the drain pipe 14.

[0045] Furthermore, in the mixing device 1 according to the present embodiment, when the supply of the particles 15 from the particle supply unit 11 is stopped, the liquid 16 and the air are used as a mixing device for mixing. It is possible.

As described above, the mixing apparatus 1 according to the present embodiment can be used as a mixing apparatus for mixing only the liquid 16 and air without changing the configuration, or for mixing two kinds of liquids. It can also be used as a device, is extremely versatile as a mixing device, is easy to operate, and can be manufactured at a low cost. Has the effect.

[0046] Returning to the description of FIG. 2 again, the mixture supply facility 3 according to the present embodiment includes an orifice 13 at the discharge port 12a of the liquid supply unit 12.

The orifice 13 does not necessarily have to be provided. However, when the orifice 13 is provided at the discharge port 12a of the liquid supply unit 12, the liquid 16 supplied from the direction of reference B in FIG. 12 has the effect that the liquid can be discharged into the cylinder 10 vigorously.

As a result, the effect that the particles 15 supplied from the upper opening 10a of the cylinder 10 can be suitably mixed and stirred with the liquid 16 discharged from the orifice 13 in the cylinder 10 can be expected.

Furthermore, in this case, the liquid supply unit 12 is connected to the cylinder 10 while considering the arrangement of the orifice 13 so that the liquid 16 discharged from the orifice 13 swirls along the inner wall of the cylinder 10. The effect of washing the particles 15 adhering to the inner wall of the body 10 to the suction port 6 can also be expected.

As a result, it is possible to more reliably lead the granules 15 supplied into the cylinder 10 to the succession section 8, and the granules 15 supplied to the succession section 8 from the mixture supply equipment 3 per unit time. The effect that the amount can be made substantially uniform is exhibited.

Therefore, the effect that the multiphase flow 18 discharged from the aspirator 2 can be made homogeneous is exhibited.

[0047] Next, with reference to FIG. 3, the mechanism by which the mixture is derived from the suc- sion unit 8 to the receiving nozzle 5 will be described in detail.

FIG. 3 is a partial cross-sectional view of the mixing apparatus according to the embodiment of the present invention. The same parts as those described in FIG. 1 or FIG. 2 are denoted by the same reference numerals, and description of the configuration is omitted.

As shown in FIG. 3, the liquid 16 and the particles 15 sucked from the suction port 6 to the sac- tion part 8 or the liquid 16, the particles 15 and the bubbles 17 (air) are transferred from the receiving port 5a to the receiving nozzle 5. At this time, the injection port 4b of the injection nozzle 4 and the reception port 5a of the receiving nozzle 5 are arranged substantially concentrically and on the same plane, and the outer periphery of the receiving port 5a has a cross section. The concave groove 9 As a result, two types of streamlines are formed in the succession portion 8: streamlines in the direction indicated by symbol C in the figure and streams in the direction indicated by symbol E.

As described above, the two streamlines as described above are formed in the succession portion 8, whereby a part of the particles 15 sucked into the suction portion 8 is temporarily retained in the groove portion 9.

As a result, there is no possibility that the particles 15 sucked into the suc- sion part 8 will concentrate rapidly on the receiving port 5a, and the particles 15 gradually flow into the gap between the injection port 4b and the receiving port 5a. The gap between 4b and the receiving port 5a is not easily clogged by the granules 15.

In order to exert the above-described effects, the distance (depth) L (see FIG. 2) from the plane forming the receiving port 5a to the bottom of the groove 9 is equal to the diameter L of the injection port 4b. Same level

5 1

Is desirable.

[0048] Further, from a different viewpoint, it can be said that the aspirator 2 according to the present embodiment includes a protrusion around the receiving port 5a of the succession portion 8.

In addition, by having such protrusions in the suction part 8, even if the granules 15 are firmly agglomerated in the cylindrical body 10 and flow into the succession part 8 in this state, they will be accepted. The nodule-like particles 15 are divided and pulverized by protrusions formed around the mouth 5a, so that the gap between the injection port 4b and the receiving port 5a can be prevented from being clogged. It is demonstrated.

Further, in the mixing apparatus 1 according to the present embodiment, the two streamlines as described above are formed in the suc- tion part 8, so that the liquid 16 and the granules 15 or the liquid 16 in the sac- tion part 8 are formed. Mixing of the particles 15 and the bubbles 17 can promote stirring.

Therefore, by providing the groove portion 9 having a concave cross section on the outer periphery of the receiving port 5a, there is an excellent effect that the particles 15 can be led out from the suction port 6 of the aspirator 2 into the receiving nozzle 5 without clogging. It is demonstrated.

Thereafter, the mixture led out to the receiving nozzle 5 from the receiving port 5a, that is, the mixture of the liquid 16 and the particles 15 or the mixture of the liquid 16 and the particles 15 and the bubbles 17 is indicated by a symbol A in FIG. After being fed into the injection nozzle 4 from the direction, it is vigorously discharged in the direction indicated by G while mixing with the liquid 16 injected from the direction indicated by F.

[0049] FIG. 4 shows a mixture of a liquid and a mixture in the aspirator according to the embodiment of the present invention. FIG. The same parts as those described in FIGS. 1 to 3 are denoted by the same reference numerals, and description of the configuration is omitted.

As described above, the diameter L of the receiving port 5a is configured to be larger than the diameter L of the injection port 4b.

twenty one

It is. For this reason, as shown in FIG. 4, when the liquid 16 is ejected vigorously from the ejection port 4b, the mixture 19 sucked from the direction indicated by the symbol H in the figure is fed from the suction portion 8 to the receiving rod 5a. Even if it flows in, the vicinity of the receiving port 5a in the receiving nozzle 5 is often not completely filled with the multiphase flow 18.

That is, in the receiving nozzle 5, in the range indicated by the symbol I in the drawing from the receiving port 5 a, the speed at which the liquid 16 flows is high, so that even if the mixed material 19 flows from the suction section 8, the liquid 16 Is also insufficient, and there is a high possibility that there is a gap 20 between the inner peripheral surface of the receiving nozzle 5 and the multiphase flow 18, and the multiphase flow 18 flows in an inhomogeneous state. is there.

Therefore, if the length L of the receiving nozzle 5 is set to 16 times the diameter L of the receiving port 5a or less,

6 2

In this case, the gap 20 continues to the discharge port 5b, and it is highly possible that the outside air mixed from the discharge port 5b flows into the suc- tion part 8 through the gap 20.

In the unlikely event that outside air flows into the suction section 8, the suction pressure is no longer generated in the suction section 8, and the mixture 19 and the mixed phase flow 18 flow backward to the mixture supply equipment 3 (not shown). It will be done.

Therefore, it is desirable that the length L of the receiving nozzle 5 is at least 16 times the diameter L of the receiving port 5a.

6 2

It is new.

[0050] In addition, in the vicinity of the discharge port 5b of the receiving nozzle 5 according to the present embodiment, the liquid 16 ejected from the ejection port 4b and the mixture 19 supplied from the suction section 8 are mixed substantially uniformly. Thus, the interior of the receiving nozzle 5 is filled with the multiphase flow 18 without a gap.

Therefore, when the multiphase flow 18 passes through the vicinity of the discharge port 5b of the receiving nozzle 5, a higher inertial force is applied to the multiphase flow 18. As a result, the excellent effect that the multiphase flow 18 can be ejected vigorously from the outlet 5b is exhibited.

[0051] As described above, according to the mixing device 1 according to the present embodiment, the liquid 16 and the particles 15 that are not clogged by using the aspirator 2 or the liquid 16, the particles 15 and the gas are mixed. Mixed The excellent effect that the phase flow 18 can be continuously generated is exhibited.

Further, the mixing device 1 according to the present embodiment can be used as a mixing device for mixing the liquid 16 and gas or the liquid 16 and another liquid without any change in the configuration. It is extremely versatile.

In addition, according to the aspirator 2 and the mixing device 1 according to the present embodiment, it is possible to suck particles 15 having a maximum diameter not more than 0.5 times the diameter L of the injection port 4b from the suction port 6.

1

is there.

Further, the granular material 15 described in the present specification is a maximum of 0.5 times or less the diameter L of the injection port 4b.

1

V, meaning all granules or powders with a large diameter.

Industrial applicability

As described above, the invention described in claims 1 to 8 of the present invention is a mixture of liquid and granules or liquid, granules and gas that are not clogged using an aspirator. The present invention relates to a mixing device that can generate a multiphase flow continuously, and can be used in washing facilities and seeding devices, or in fields that require a mixed phase flow that mixes liquid and particles, or liquid, particles, and gas. It is.

Claims

The scope of the claims

[1] An aspirator used in a mixing apparatus that mixes liquid and particles or liquid, particles and gas,

A suction port (6) for sucking the mixture (19), a spray nozzle (4) for reducing the diameter toward the spray port (4b) and spraying the spray (4b) force liquid (16), and the spray port An outer wall (7) enclosing (4b), a sac- tion part (8) formed between the inner peripheral surface (7a) of the outer wall (7) and the outer peripheral surface (4c) of the injection nozzle (4); A receiving nozzle (5) for receiving the liquid (16) ejected from the ejection nozzle (4) and the mixture (19) sucked from the suction port (6);

The aspirator (2), wherein the receiving port (5a) of the receiving nozzle includes a groove (9) having a concave cross section on the outer periphery thereof.

[2] An aspirator used in a mixing device that mixes liquid and particles or liquid, particles and bubbles,

A suction port (6) for sucking the mixture (19), a spray nozzle (4) for reducing the diameter toward the spray port (4b) and spraying the spray (4b) force liquid (16), and the spray port An outer wall (7) enclosing (4b), a succin portion (8) formed between the inner peripheral surface (7a) of the outer wall (7) and the outer peripheral surface (4c) of the injection nozzle (4), A receiving nozzle (5) for receiving the liquid (16) ejected from the ejection nozzle (4) and the mixture (19) sucked from the suction port (6), and the ejection port (4b) Where L is the diameter of L and L is the diameter of the receiving port (5a).

1 2 1 2 1

Meet L,

2

The central force of the suction port (6) The distance L to the plane forming the injection port (4b) is L

3 3

Aspirator (2) characterized by satisfying ≥5L.

1

[3] The distance from the receiving port (5a) to the discharge port (5b) of the receiving nozzle (5) is not less than 16 times the diameter of the receiving port (5a). Aspirator (2) according to claim 2 or claim 2.

[4] A mixing device for mixing liquid and granules,

An aspirator (2) and a mixture supply facility (3) connected to the aspirator (2),

The aspirator (2) has a suction port (6) for sucking the mixture (19) and an injection port (4b). An injection nozzle (4) for reducing the diameter of the injection port (4b) and ejecting liquid (16) from the force of the injection port (4b), an outer wall (7) containing the injection port (4b), and an inner periphery of the outer wall (7) A suction part (8) formed between the surface (7a) and the outer peripheral surface (4c) of the spray nozzle (4), the liquid (16) sprayed from the spray nozzle (4), and the suction port A receiving nozzle (5) for receiving the mixture (19) sucked from (6),

The mixture supply facility (3) is connected to the suction port (6) of the aspirator (2) and includes a liquid supply unit (12) and a granular material supply unit (11). Device (1).

[5] A mixing device for mixing liquid, particles and gas,

The aspirator (2) includes a suction port (6) for sucking the mixture (19), and an injection nozzle for reducing the diameter toward the injection port (4b) and injecting the liquid (16) from the force of the injection port (4b) (4) and an outer wall (7) containing the injection port (4b), and an inner peripheral surface (7a) of the outer wall (7) and an outer peripheral surface (4c) of the injection nozzle (4). Receiving nozzle (5) for receiving the suctioned portion (8), the liquid (16) jetted from the jet nozzle (4), and the mixture (19) sucked from the suction port (6) And

The mixture supply facility (3) is connected to the suction port (6) of the aspirator (2), and includes a liquid supply unit (12), a granule supply unit (11), and a gas supply unit. Mixing device characterized by (1).

[6] In the above-mentioned mixture supply facility (3), the particle supply unit (11) is disposed above the liquid supply unit (12). A mixing device (1) according to claim 5.

[7] Any one of claims 4 to 6, wherein the aspirator (2) according to any one of claims 1 to 3 is used. A mixing device according to (1).

[8] A method of mixing liquid and granules, or liquid and granules and gas, wherein liquid and granules or liquid and granules and gas are sucked from the suction port of an aspirator.