JP2015096260A - Mist generation method and mist generation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mist generation method and a mist generation device capable of generating mist, dry mist, and mixed mist of the mist and the dry mist.SOLUTION: In a mist generation method, fluid is press-fitted into a mist generation device, the fluid is distributed into to two or more branch passages of the mist generation device to change flow speed, a plurality of types of fluid different in the flow speed is merged and the plurality of types of fluid is mutually collide, thereby mist, which is stable and in which intermolecular gentle bonding of the fluid is broken to properly arrange a particle diameter, is jetted from a nozzle. The mist generation device comprises: a fluid inlet press-fitted with the fluid; a fluid passage for flowing the fluid press-fitted in the fluid inlet; a mist preparation part communicated with the other side of the fluid passage; and the nozzle communicating with the mist preparation part. The mist preparation part is configured so that the mist, which is stable and in which the intermolecular gentle bonding of the fluid sent from the fluid passage is broken to properly arrange the particle diameter, is jetted from the nozzle.

Description

  The present invention can generate only fine mist, fine mist (mist), or super fine mist (dry mist) from one generator, or can generate both mist and dry mist simultaneously (mixed loading) The present invention relates to a mist generating method and a mist generating apparatus. The mist and dry mist generated by the mist generating method and the mist generating apparatus of the present invention are used for cleaning (cleaning), disinfecting various devices such as automobile engines, indoor air conditioners for homes, public facilities, and commercial facilities. It can be used for deodorization and indoor humidification.

  The mist has fine mist, fine mist, and super fine mist depending on the particle size, and the fine mist and fine mist have a particle size of tens of microns (tens of microns) to hundreds of microns (hundreds of microns), Usually, both are called mist. It is known that mist wets the surface of the object well when it hits it. Dry mist has a particle size of 10 or more microns (ten and several μm) or less, and does not wet the surface of an object strongly, and has a feature that it stays in the air for a long time.

  Mist and dry mist are used in various fields. For example, they are used for cleaning an intake system, a combustion system, and an exhaust system of an automobile engine. An aerosol device (Patent Document 1) is known as a mist generating device for engine cleaning. This aerosol device has an injection hose attached to a spray can containing a cleaning liquid. When the button on the spray can is pressed, the cleaning liquid becomes a mist due to the gas pressure in the spray can and is provided at the tip of the injection hose. The engine is cleaned by spraying mist from two or more spray holes.

JP 2008-120405 A

  Since the conventional mist generating device including the mist generating device described in Patent Document 1 generates mist having a particle size larger than that of dry mist, the surface of the object to be cleaned is strongly wetted to Although it is suitable for cleaning, it is not suitable for cleaning an object on which many precision devices such as sensors are mounted, such as an automobile engine. For this reason, when an automobile engine or the like is cleaned using a conventional mist generating device, the sensors mounted near the cleaning site are also wetted, which may cause an operation error of the sensors. In order to avoid this, the mist supply position is adjusted to prevent the sensor from getting wet.

  One way to adjust the mist supply position is to connect one end of a slender injection hose (resin, metal, etc.) to the mist generator, and insert the tip to a safe location in the engine. . Even if the mist injection position is adjusted by this method, the injected mist accumulates on the inner wall of the engine, and the accumulated mist leaks into the engine, causing a malfunction of the engine. In order to prevent dripping, there is also a method of intermittently supplying the mist into the engine while temporarily stopping the mist injection. However, this method has poor workability compared to the continuous supply.

  Most of the injection hoses are made of PE resin (polyethylene resin) and have a thermal expansion coefficient more than double that of PP, nylon, etc., so depending on the ambient temperature during use, seasonal temperature differences, etc. ) The diameter may change and the cleaning time may become longer or shorter. In some cases, the mist injection stopped.

  The present invention provides a mist generating method and a mist generating device that can solve the various problems described above and that can generate various forms of mist such as mist, dry mist, and mixed mist according to applications.

  The mist generation method of the present invention is a secondary plane having a small thickness (0.1 mm to several mm), unlike a product nozzle (three-dimensional structure) used for generating existing mist and dry mist. A thin mist generator realized by a structure is provided.

  The mist generating method of the present invention is a mist generating method in which a fluid is pressed into a mist generating device to generate mist, and the fluid to be pressed into the mist generating device is a single liquid, and the fluid is pressed into the mist generating device. The flow rate is changed by dividing the flow into two or more branches of the mist generator, and fluids with different flow rates are joined to collide with each other, thereby breaking the loose bonds between the fluid molecules and reducing the particle size. This is a method in which aligned and stable mist is ejected from nozzles (injection holes). In the present invention, a pressure vessel or a pressure device having another shape or structure can be used for fluid injection (the same applies hereinafter).

  In the mist generating method of the present invention, the fluid to be pressed into the mist generating device is a gas-compatible fluid in which the liquefied gas is dissolved, and the gas-soluble fluid is pressed into the mist generating device to stabilize the mist generating device. To the gasification gate, and from the stabilization gate to the confluence chamber with a larger cross-sectional area to promote gasification of the liquefied gas, and the fluid is stirred by the gas pressure to break loose bonds between the fluid molecules. It is also possible to use a method in which a uniform mist and a stable mist are ejected from the nozzle.

  The mist generation method of the present invention is a case of two fluids using a high pressure gas and a liquid. The high pressure gas is pressed into the gas flow path of the mist generation device, and the high pressure gas is stabilized from the gas flow path to be narrower than that. The fluid from the fluid passage of the mist generator into the stabilization gate by feeding it through the stabilization gate into the confluence chamber wider than the stabilization gate and increasing the flow velocity of the fluid passing through the stabilization gate to reduce the pressure of the stabilization gate. The high-pressure gas and liquid that have been inhaled and merged in the stabilization gate are sent out into the merge chamber and the high-pressure gas and liquid are agitated to break up loose bonds between the molecules of the fluid to make the particle size uniform and stable. It is also possible to use a method in which mist is ejected from a nozzle.

  The mist generating method of the present invention is the mist generating method according to any one of the above, wherein two or more nozzles in the mist generating apparatus have different hole diameters, and mist and dry mist having a smaller particle diameter are generated from these nozzles. In this method, both mists are mixed and ejected.

  As shown in FIG. 1 (a), the mist generator of the present invention includes a fluid inlet into which a fluid is press-fitted, a fluid passage through which the fluid press-fitted into the fluid inlet flows, and a mist communicated with the tip of the fluid passage. The mist preparation unit includes a preparation unit and a nozzle that communicates with the mist preparation unit. The mist preparation unit breaks a loose bond between molecules of the fluid sent from the fluid passage to make the particle size uniform, and a stable mist can be ejected from the nozzle. The mist produced | generated in the mist preparation part can be ejected directly, or it can eject now from the nozzle instrument connected with the nozzle.

  As shown in FIG. 1 (a), the mist generating device can be provided with a filter for removing foreign matters mixed in the fluid press-fitted into the fluid inlet at either or both of the fluid inlet and the fluid passage. .

  As shown in FIG. 6 (a), the mist preparation unit of any one of the mist generating devices includes two or more distribution paths through which the fluid sent from the fluid path is distributed, and the pressure of the fluid sent from these distribution paths. A stabilizing gate that stabilizes the flow rate and the like, two or more branch paths provided at the front of the stabilization gate, and a merge chamber in which fluids that have passed through the branch paths merge, at least two or more branch paths are The passage length or width is different so that the fluids passing through the branch passages have different flow rates, and the fluids that have passed through the two or more branch passages at different flow rates join together and the fluids collide with each other. The loose bonds between the fluid molecules are broken to make the particle size uniform, and a stable mist is ejected from the nozzle.

  As shown in FIGS. 7 (c) and 7 (d), the mist preparation unit of the mist generator has two or more distribution paths through which the fluid sent from the fluid path is distributed, and the pressure of the fluid sent from these distribution paths. And a stabilization gate that stabilizes the flow rate, etc., and a merge chamber provided at the front of the stabilization gate, the merge chamber is wider than the stabilization gate, and the fluid that flows in through the stabilization gate It can also be stirred to promote gasification of the liquid and break loose bonds between the fluid molecules so that the particle size is uniform and a stable mist is ejected from the nozzle.

  As shown in FIG. 10C, the mist preparation unit of the mist generator is provided with a stabilization gate at the tip of the fluid passage for stabilizing the pressure and flow rate of the fluid sent from the fluid passage. A confluence chamber provided at the end of the gate is provided, the confluence chamber is wider than the stabilization gate, the fluid flowing through the stabilization gate is agitated to promote gasification of the liquid, and the intermolecular It is also possible to break up the loose bonds so as to make the particle diameter uniform and to eject a stable mist from the nozzle.

  As shown in FIG. 9A, the mist preparation unit of the mist generator stabilizes the flow rate of the fluid sent from the two or more distribution passages to which the high-pressure gas sent from the high-pressure gas passage is distributed and the distribution passages. A stabilization gate, a merging chamber provided in front of the stabilization gate, and a communication passage through which fluid is sent from the fluid passage, and the stabilization gate increases the flow rate of the high-pressure gas sent from the high-pressure gas passage The merging chamber is formed wider than the stabilization gate, the mist injection hole is opened in the merging chamber, the communication passage is connected to the stabilization gate, and the communication passage is stabilized. When the flow rate of the high-pressure gas passing through the stabilization gate becomes high and the pressure inside the stabilization gate becomes low, the liquid in the liquid passage passes through the communication passage and is sucked into the stabilization gate. Can also .

  As shown in FIGS. 2A to 2C, the mist generating device includes at least a fluid passage, a mist preparation unit, a distribution path of the mist preparation unit, a stabilization gate, and a merge chamber between the laminated thin plates. It can be formed.

  As shown in FIG. 2 (b), the mist generating device includes at least a fluid inlet recess, a passage filter groove, a passage groove, a distribution channel groove in a mist preparation section, and a gate on one laminated thin plate. As shown in FIG. 2 (a), an inlet filter hole and another thin plate having an injection hole are laminated on the thin plate, and the fluid inlet concave portion and the passage are formed. Filter groove, passage groove, distribution channel groove of mist preparation section, gate groove, confluence chamber recess are closed, and at least the fluid inlet, passage filter, fluid passage, and mist preparation section are distributed between the two thin plates. A channel, a stabilization gate, a merge chamber, and a nozzle may be formed.

  The mist generating device can be made flexible (flexible) even if the thin plates are laminated, and the thin plates are flexible.

  It is also possible to separate the fluid passage section through which the fluid that is the mist generating raw material passes and the mist generating section that generates mist from the mist preparation section, and connect them with a connector.

  Various apparatuses such as an automobile engine and an air conditioner can be cleaned (including washing) with a mist using the mist generator of the present invention. In that case, the fluid in the pressure vessel is press-fitted into the fluid inlet of the mist generating device, the fluid is misted by the mist preparation unit of the mist generating device, and the mist is ejected from the nozzle of the mist generating device. Can be cleaned. In this case, both or one of the sterilizing agent and the deodorizing agent can be used for the fluid to sterilize and deodorize the device. Also, any one of the mist generators is used, a fluid is press-fitted into a fluid inlet of the mist generator, the fluid is misted by a mist preparation unit of the mist generator, and the mist is discharged from a nozzle of the mist generator. It can be sprayed indoors and outdoors to humidify indoors and outdoors. In this case, both or one of the sterilization and deodorization of the atmosphere can be performed by using both or one of the sterilizing agent and the deodorizing agent in the fluid.

  The mist generating method of the present invention can generate both mist and dry mist by mixing both mists.

The mist generator of the present invention has the following effects.
(1) Since mist and dry mist with different particle sizes can be generated, it is possible to generate mist according to the application with a single mist generator, such as cleaning an automobile engine or cleaning an air conditioner filter. The generation of mist can be used properly according to the equipment to be used.
(2) Since it is formed by laminating thin plates, it is less likely to be deformed than a plastic resin injection tube, and the nozzle does not close due to thermal expansion at a high temperature, thus causing no injection failure.
(3) Since mist and dry mist can be mixed and generated, the vehicle air conditioner filter can be cleaned with mist, and the vehicle can be sterilized and deodorized with dry mist. It can be performed at the same time and the workability is good.

(A) is a perspective view which shows an example of the mist generator of this invention, (b) is a perspective view which shows the state which rounded the mist generator shown to (a). (A) is a perspective view of one thin plate, (b) is a perspective view of the other thin plate, and (c) is an assembly explanatory diagram in the case of laminating thin plate pieces on two thin plates. FIG. 2A is a partial cross-sectional view of a portion of the thin plate in FIG. 2B, FIG. 2B is a cross-sectional perspective view of the b portion of the thin plate, FIG. ) Is a cross-sectional perspective view of the d portion of the thin plate, (e) is a cross-sectional perspective view of the e portion of the thin plate, (f) is a partial cross-sectional view of the f portion of the thin plate of FIG. The cross-sectional perspective view of the g part of the said thin plate, (h) is a cross-sectional perspective view of the h part of the said thin plate. (A) is a perspective view of the fluid inlet part of the mist generating apparatus of this invention, (b) is a top view of filter vicinity, (c) is sectional drawing of a fluid inlet part. (A) is a plan view of one thin plate, (b) is a plan view of the other thin plate, and (c) is an enlarged plan view of (b). (A) is an enlarged view of the mist preparation part of FIG.5 (b), (b) is the (a) BB part sectional drawing of the state which accumulated the thin plate. (A) is a plan view of one thin plate, (b) is a plan view of the other thin plate, (c) and (d) are plan views of different examples of the mist preparation section in (b), and (e) is a plan view of the thin plate. (C) BB section sectional view of the piled-up state. (A) is a plan view of one thin plate, (b) is a plan view of the other thin plate, and (c) is an enlarged plan view of (b). (A) is an enlarged view of the mist preparation part of FIG.8 (c), (b) is the (a) BB part sectional drawing of the state which accumulated the thin plate. (A) is a plan view of one thin plate, (b) is a plan view of the other thin plate, (c) is an enlarged plan view of the mist preparation portion in (b), (d) is a state in which the thin plates are stacked (c) ) BB section sectional view. (A) is a perspective view which shows the other example of the mist generator of this invention, (b) is the fragmentary detail drawing of the mist preparation part in (a). (A) is explanatory drawing in the case of cleaning (washing | cleaning) an automobile engine using the mist generator of this invention, (b) is attachment explanatory drawing of the mist generator to a motor vehicle engine. Explanatory drawing in the case of performing disinfection and deodorization in a vehicle-mounted air conditioner or a vehicle interior using the mist generator of this invention. Explanatory drawing in the case of performing indoor disinfection and deodorizing using a mist generating apparatus of this invention. Explanatory drawing in the case of performing area cooling of facilities etc. using the mist generating apparatus of this invention. The schematic diagram which shows the other example (separation type) of the mist generator of this invention.

(Mist generation method and embodiment of mist generation device)
An example of the mist generating method and mist generating apparatus of the present invention will be described with reference to the drawings. A mist generator 1 shown in FIG. 1 (a) is formed by superposing a thin metal plate 3 shown in FIG. 2 (a) on a thin metal plate 2 shown in FIG. 2 (b) as shown in FIG. 2 (c). Has been. Although the thickness of the metal thin plates 2 and 3 is not particularly limited, 0.1 mm to several mm is suitable, and the thickness of the metal thin plate piece 15 (FIG. 2C) is about 3 mm to several mm. In the present invention, a thin plate or a thin plate piece of metal, plastic, ceramic or the like can be used. However, for convenience of explanation, they are described as “metal thin plate” and “metal thin plate piece”.

  In the thin metal plate 2 shown in FIG. 2 (b), a concave portion 4 for fluid inlet (FIG. 3 (a)) is formed in a round hole shape that is depressed halfway in the thickness direction of the thin metal plate 2, and several continuous holes are formed. The passage filter groove 5 (FIG. 3 (b)) is formed, and the passage groove 6 (FIG. 3 (c)) meandering continuously is formed. The distribution channel groove 7 (FIG. 3D) is branched. A gate groove 8 (FIG. 3 (d)) communicates with the tip of each distribution channel groove 7, and a confluence chamber recess 9 (FIG. 3 (d)) communicates with the gate groove 8. A recess 10 for supplying a cleaning agent (FIG. 3 (e)) is formed in the terminal distribution channel groove 7 in the shape of a round hole recessed halfway in the thickness direction of the thin metal plate 2. All of these are formed to be recessed by one step from the upper surface 2a of the thin metal plate 2.

  A number of inlet filter holes 11 (FIG. 3 (f)) are passed through the other thin metal plate 3 shown in FIG. 2 (a), and a mist nozzle (injection hole) 12 (FIG. 3 (g)) is passed through. The cleaning agent charging hole 13 (FIG. 3 (h)) is penetrated.

  The fluid inlet recess 4 of the metal thin plate 2 and the inlet filter hole 11 of the metal thin plate 3 are aligned, and the cleaning agent charging recess 10 and the cleaning agent charging hole 13 of the metal thin plates 2 and 3 are aligned. 2, the metal thin plates 2, 3 are overlapped and closely fixed as shown in FIG. 2C, whereby the fluid inlet recess 4, the passage filter groove 5, the passage groove 6, the distribution passage groove of the metal thin plate 2. 7, the gate groove 8 and the confluence chamber recess 9 are closed, and the fluid inlet 20, the passage filter 21, the fluid passage 22, the distribution passage 23, and the stabilization gate 24 between the two metal thin plates 2 and 3 are located at the respective locations. A merging chamber 25, a nozzle 26, and a cleaning agent inlet 27 are formed.

  An inlet filter 16 (FIG. 4 (c)) is formed by covering a metal thin plate piece 15 having an inlet hole 14 passed over an inlet filter hole 11 (FIG. 2 (c)) of the metal thin plate 3 superimposed on the metal thin plate 2. ) Is formed.

  The two thin metal plates 2 and 3 stacked as described above can be bonded by a diffusion bonding method or can be bonded by an adhesive. The thin metal plate pieces 15 can also be bonded or bonded by the same method.

  The fluid inlet 20, the inlet filter 16, the passage filter 21, the fluid passage 22, the distribution passage 23, the stabilization gate 24, the merging chamber 25, the nozzle 26, and the cleaning agent inlet 27 are communicated in that order. 1 (a), the fluid supplied from the pressure vessel S to the fluid inlet 20 includes an inlet filter 16, a passage filter 21, a fluid passage 22, a distribution passage 23, a stabilization gate 24, a merging chamber 25, and a cleaning agent input. It flows in the order of the mouth 27. In this case, when dust is mixed in the fluid flowing in from the fluid inlet 20, they are removed by the inlet filter 16 and the passage filter 21.

  As shown in FIG. 1A, the mist preparation section 30 formed by the distribution path 23, the stabilization gate 24, and the merge chamber 25 while the fluid supplied from the pressure vessel S to the fluid inlet 20 flows as described above. The mist is generated by the nozzle 26, and the generated mist is ejected from the nozzle 26 (FIG. 2A) to the outside. The ejected mist becomes mist or dry mist depending on the size of the hole diameter of the nozzle 26. As an example, a mist is formed with a hole diameter of about 0.15 mm, and a dry mist is formed with a hole diameter of about 0.08 mm. When a part of the many nozzles 26 in one mist generating section 41 has a hole diameter of about 0.15 mm and the other has a hole diameter of about 0.08 mm, mist is ejected from the former and dry mist is ejected from the latter. That is, mist and dry mist are ejected simultaneously (mixed ejection) from one mist generating part 41.

  When the fluid passage 22 or the mist preparation unit 30 is clogged, the cleaning agent inlet 27 (FIG. 1A) is used to supply a cleaning agent for removing foreign substances, and to remove the cleaning agent from the fluid. The foreign material can be removed by reversing the flow. Each of the fluid inlet 20 and the cleaning agent inlet 27 is a round hole having a size of about several mm. This numerical value is an example and is not limited thereto.

  A flexible thin plate (a flexible thin plate) can be used for the metal thin plates 2 and 3. The material is not particularly limited, but a thin plate of stainless steel (SUS304, SUS316) is suitable. Other thin metal plates that can be expected to have corrosion resistance can also be used. The shape, size, thickness, and the like of the metal thin plates 2 and 3 can be appropriately designed in terms of pressure resistance, flexibility, application, and the like. The thickness of the two metal thin plates 2 and 3 is preferably about 0.1 mm to several mm. If the thickness is less than 0.1 mm, it is difficult to form an ultrafine groove, and if the thickness is more than several mm, the flexibility becomes poor. These numerical values are merely examples, and other thicknesses may be used depending on the material. The mist generating device in which the thin metal plates 2 and 3 are laminated can be freely designed from a flexible one that can be rounded as shown in FIG. 1B to a rigid one.

  The passage filter groove 5, the passage groove 6, the distribution passage groove 7, the gate groove 8, the confluence chamber recess 9 and the like can be formed by an etching method. The fluid inlet recess 4, the cleaning agent charging recess 10, the inlet filter hole 11, the mist nozzle 12, the cleaning agent charging hole 13, etc. can be opened by precision punching or laser processing. These processing methods are merely examples, and processing using other methods is also possible.

  The fluid inlet 20 can be connected by inserting the tip of a hose (tube) T connected to a pressure vessel (spray can) S as shown in FIG. As shown in FIG. 4C, a screw 17 of JIS standard M3 or higher can be formed on the peripheral wall of the fluid inlet 20, and a connector 18 is connected to the connector 18, and one end of the tube T is connected to the connector 18. You can also.

  As shown in FIG. 3F, the fluid inlet 20 (FIG. 1A) is provided with an inlet filter 16 (FIG. 4C) having a mesh structure through which a large number of inlet filter holes 11 are passed. The foreign matter contained in the fluid can be removed. The hole diameter φ of the inlet filter hole 11 (FIGS. 1A and 3F) is suitably about 0.05 to 0.3 mm, but other hole diameters may be used.

  As shown in FIGS. 3 (b) and 4 (b), several passage filter grooves 5 that form the passage filter 21 (FIG. 2 (b)) are formed in parallel with the thin metal plate 2. Specifically, the elongated protrusion 5a (FIG. 3B) is placed in parallel to the fluid flow direction in the foreign substance reservoir chamber 19 (FIG. 3B) formed on the metal thin plate 2 one step lower than the upper surface 2a. Several are provided, and the gap between the projections 5a is used as a passage filter groove 5. The small dust that cannot be removed by the inlet filter 16 (FIG. 4C) is captured and prevented from flowing into the fluid passage 22 and removed. Dust is accumulated in the foreign material reservoir chamber 19. By providing a plurality of gaps, even if foreign matters are clogged in some of the gaps, the fluid passes through the other gaps and flows into the fluid passage 22. The groove width and depth of the passage filter groove 5 are about 50 μm to 300 μm (set to be smaller than the nozzle diameter). This numerical value is also an example, and the present invention is not limited to this.

  The fluid passage 22 meanders as shown in FIGS. 1 (a) and 3 (c), and the groove width and depth of the passage groove 6 to be the fluid passage 22 are several tens of μm to .0. It is very thin, about several mm. This numerical value is also an example, and the present invention is not limited to this. The meander pattern can be arbitrarily designed. If possible, it may be linear.

  The mist preparation unit 30 (FIG. 1A) prepares for stable mist formation by breaking loose bonds between molecules of the fluid flowing from the fluid passage 22 to make the particle sizes uniform. As shown in the mist preparation unit 30 (FIGS. 1A and 3D), the mist preparation unit 30 includes a distribution path 23, a stabilization gate 24, and a merging chamber 25. The distribution channel groove 7 (FIG. 3D) serving as the distribution channel 23, the gate groove 8 serving as the stabilization gate 24 (FIG. 3D), and the merge chamber recess 9 serving as the merge chamber 25 (FIG. The depth of d)) is also about 50 μm to several hundred μm, and the lateral width of the gate groove 8 and the confluence chamber recess 9 is about several millimeters and the length is several tens of millimeters (Max). These numerical values are also examples, and are not limited thereto. There are various shapes and structures of the mist preparation unit 30. The main examples will be described below.

(Example 1 of the mist preparation unit)
As an example of the mist preparation unit 30 (FIG. 1 (a)), the fluid shown in FIGS. 5 (a) to 5 (c), 6 (a), and 6 (b) is a fluid supplied from the pressure vessel S. It is a structure suitable for the case.

  An outline of the overall structure of the mist preparation unit 30 of this embodiment is shown in FIGS. As shown in detail in FIGS. 6A and 6B, a large number of distribution passages 23 for distributing the fluid flowing through the fluid passage 22, and an elongated stabilization gate formed at the front of each distribution passage 23. 24, a branch path 31 (three) formed in front of the stabilization gate 24, and a circular junction chamber 25. The dimensions such as the lateral width, length, and depth of the distribution path 23, the stabilization gate 24, the branch path 31, and the merge chamber 25 can be designed as appropriate.

  In general, the pressure vessel S (FIG. 1 (a)) discharges the contents with the jet gas or the high-pressure gas therein, but the discharge pressure decreases according to the remaining amount of the contents, so that the discharge pressure is constant. It is difficult to hold. The flow rate of the liquid discharged from the pressure vessel S (FIG. 1A) is limited by adjusting the cross-sectional area and length of the stabilization gate 24 (FIG. 6A), and the pressure vessel S This is for maintaining the predetermined pressure until the internal pressure is kept high and almost all the fluid in the pressure vessel S is completely discharged.

  The number of the branch paths 31 shown in FIG. 6A is three, and the flow lengths of the central one (straight line) and the left and right two (arc-shaped) are changed to flow through the central and left and right branch paths 31. Keep the fluid velocities different. As long as there are two or more branch paths 31, other numbers may be used, but at least the branch paths 31 have different channel lengths.

  In the merge chamber 25 (FIG. 6A), fluids flowing in from the three branch paths 31 collide, and the loose bonds between the fluid molecules are broken to prepare for mist formation. The straight branching passage 31 has a low flow velocity, and the arc-shaped branching passage 31 has a high flow velocity. When colliding in the merge chamber 25, the loose bonds between fluid (liquid) molecules are broken to prepare for mist formation. be able to.

  The merge chamber 25 communicates with a nozzle 26 (FIGS. 2A and 6B), and the mist liquid prepared in the merge chamber 25 is ejected to the outside through the nozzle 26. The nozzle 26 preferably has a hole diameter of about 0.05 to 0.15 mm when used for cleaning an automobile engine.

(Example 2 of the mist preparation unit)
The example shown in FIG. 7B as an example of the mist preparation unit 30 is suitable when a liquefied gas component is contained in a single fluid, for example, when the liquefied gas is compatible with 30 to 60 wt% in a single fluid. Structure.

  An outline of the overall structure of the mist preparation unit 30 of this embodiment is shown in FIG. As shown in detail in FIG. 7 (c), a number of distribution passages 23 for distributing the fluid flowing through the fluid passage 22 and a stabilization gate 24 formed at the front of each distribution passage 23 (FIG. 7 (c). )) And an elongated elliptical confluence chamber 25 formed at the front of the stabilization gate 24. The dimensions such as the width, length, and depth of the distribution path 23, the stabilization gate 24, and the merge chamber 25 can be designed as appropriate.

  The merge chamber 25 communicating with the stabilization gate 24 is wider than the stabilization gate 24, and when the fluid that has passed through the stabilization gate 24 enters the merge chamber 25, the liquefied gas as a component of the fluid is gasified. is there. The fluid is agitated by this gasification pressure to break loose bonds between molecules so as to have a uniform particle size and to facilitate stable mist formation. By making the merge chamber 25 sufficiently wider than the stabilization gate 24, the liquefied gas is easily gasified, and the fluid is easily stirred and crushed.

  The merge chamber 25 shown in FIG. 7C is an elongated ellipse, but the merge chamber 25 may be circular as shown in FIG. 7D. Other shapes can be used if possible.

(Example 3 of the mist preparation unit)
An example of the mist preparation unit 30 shown in FIG. 8B is suitable when two fluids (for example, a cleaning liquid and a high-pressure gas for injection) are used.

  An outline of the overall structure of the mist preparation unit 30 of this embodiment is shown in FIG. As shown in detail in FIG. 8C and FIG. 9A, the details include a fluid passage (high-pressure gas passage 36) for supplying a high-pressure gas for injection and a liquid supply passage 34 for supplying a cleaning liquid (liquid). I have. The fluid supply passage 34 is the same as the fluid passage 22 in FIGS. 5B and 6B. A large number of distribution passages 23 (FIG. 8C) are formed from the high-pressure gas passage 36, a stabilization gate 24 (FIG. 9A) is formed at the tip, and a junction chamber 25 is formed at the tip. Has been. The liquid supply channel 34 is connected to the stabilization gate 24 by two communication paths 35. The stabilization gate 24 is formed narrower than the distribution path 23 and the merge chamber 25.

  In the mist preparation unit 30 shown in FIG. 9A, when the high-pressure gas sent from the high-pressure gas flow path 36 to the distribution path 23 enters the stabilization gate 24, the pressure in the stabilization gate 24 decreases, and the liquid The liquid supplied to the supply flow path 34 is sucked into the stabilization gate 24 through the communication path 35, and the liquid and the high-pressure gas are mixed in the junction chamber 25 ahead of the liquid, so that the liquid is gradually relaxed between the molecules. The bond is broken to make the particle size uniform and ready for stable misting. The nozzle 26 (FIG. 9B, FIG. 8A) is ejected by this preparation. The amount of liquid drawn by the high-pressure gas can be designed according to the ejection capability of the nozzle 26.

(Example 4 of the mist preparation unit)
The example shown in FIG. 10B as an example of the mist preparation unit 30 is suitable when a liquefied gas component is contained in a single fluid, for example, when the liquefied gas is compatible with 30 to 60 wt% in a single fluid. Structure.

  As shown in FIG. 10C, only one entire structure of the mist preparation unit 30 of this embodiment is provided at the end of one liquid flow path 22. The mist preparation section 30 includes a substantially circular junction chamber 25, and includes an arc recess 37 that bulges outward at four peripheral edges. As shown in FIG. 10 (d), the arc recess 37 has four nozzles 26 on the outer periphery among the five nozzles 26 opened in the thin metal plate 3 in FIG. 10 (a) joined on the thin metal plate 2 in an overlapping manner. The mixture of the liquid and high-pressure gas mixed in the merging chamber 25 is ejected from the four nozzles 26 and at the same time from the central nozzle 26 (FIG. 10A). It is injected and becomes mist. A fan-shaped bulging portion 33 is provided near the center of the merge chamber 25. As shown in FIG. 10D, the bulging portion 33 protrudes to the upper surface in the thickness direction of the thin metal plate 2 and is joined to the thin metal plate 3 stacked thereon. By this joining, it is possible to prevent deformation due to swelling of the thin portion when pressure is applied in the merge chamber 25, and it is possible to suppress changes due to the pressure of the merge chamber capacity.

  The mist generating apparatus 1 of the present invention can also have a structure as shown in FIG. The basic structure of the mist generator 1 is the same as that of the various embodiments described above. The difference is that one mist generating device 1 is provided with a large number of mist preparation units 30, a part of the mist preparation unit 30 is a mist preparation unit having a large particle size, and the other is a dry mist preparation unit having a fine particle size. It is that. The mist preparation part and the dry mist preparation part have different nozzle hole diameters, for example, a nozzle hole diameter φ150 μm for generating mist and a nozzle hole diameter φ80 μm for generating dry mist.

  The mist preparation unit 30 in FIG. 11A has the structure shown in FIG. 11B, and the structure and function of each distribution path 23, stabilization gate 24, and merge chamber 25 are as shown in FIG. 6A. The same.

  In the mist generating apparatus 1 of the present invention, the respective constituent elements can be interchanged or combined within a range in which the intended purpose can be achieved.

(Mist generator usage example 1: Cleaning)
The mist generator 1 of the present invention can be used in various fields. As an example, it can be used for cleaning an automobile engine. Here, the case where the intake system of an automobile engine is cleaned using the mist generating device 1 having a cleaning liquid injection pressure of 1 MPa or less and a nozzle hole diameter φ of 0.05 to 0.10 mm will be described.

  As shown in FIGS. 12A and 12B, the intake filter F in front of the intake duct D is once removed, and the mist generating portion 41 of the mist generating device 1 of the present invention is rounded so that the nozzle 26 faces inward. 12 (b), the rolled mist generating part 41 is inserted into the opening of the intake duct D and fixed with a tape, or a force (restoring force) for spreading outside the rounded mist generating part 41. After the fluid passage portion 40 of the mist generator 1 is drawn out of the intake duct D, the intake filter F is returned to the intake duct D, and the pressure vessel S ( Here, the tip of the tube T connected to the cleaning solution is inserted. In this state, when the engine is started and the high pressure liquid in the pressure vessel S is sent to the mist generator 1 by pressing the injection button of the pressure vessel S, the mist generator 1 automatically generates mist, dry mist, or both mists. It is mixedly loaded and can be ejected from the nozzle 26 and sent into the intake duct D.

  As described above, dry mist does not easily wet the surface of an object, so that it does not easily affect various sensors installed in the intake system, combustion system, and exhaust system of an automobile. At the same time, in the engine, the inter-particle distance is reduced in the compression stroke, and the particles are bonded or become a gasified cleaning liquid, which condenses or wets the inner wall surface of the engine and permeates and exhibits a cleaning effect.

In the combustion system and exhaust system of an engine, gasified cleaning liquid, particles that can be maintained in particle size without combustion, and particles having a large particle size are mixed, contributing to cleaning of the exhaust system. The same applies to the combustion system. The cleaning liquid particles and the gasified cleaning liquid promote the combustion of the carbon particles by helping to decompose the HC / carbon clusters generated by the combustion, and as a result, the generation of CO ₂ and water can be confirmed at the outlet of the exhaust system. By using a dry mist cleaning agent, the HC / carbon lump and film deposited on the intake system, combustion system, and exhaust system are transported with the surface being decomposed little by little, and the combustion chamber and exhaust system are transported. It becomes water and CO ₂ at a high temperature, and the variation in the compression pressure of each cylinder of the engine is improved, so that the output is improved and the vibration is reduced. At the same time, although there are individual differences in the engine, it contributes to improving fuel efficiency overall.

When cleaning an actual engine, it is prohibited to disturb the engine control logic so that the control parameters do not need to be reset significantly, or to use gas that may deteriorate or damage the exhaust system catalyst. Various restrictions are imposed, such as being. For this reason, it is necessary to select either or both of DME and CO ₂ as the propellant for the spray can, and the injection pressure must be 1 MPa or less (substantially around 0.5 MPa). According to this, these restrictions can be cleared.

(Usage example 2 of the mist generator: Cleaning of vehicle air conditioners, etc.)
The mist generating apparatus 1 of the present invention can also be used for in-vehicle air conditioners and sterilization and deodorization (hereinafter collectively referred to as “cleaning”) in a vehicle interior. Automobiles (including passenger cars, various types of vehicles equipped with air conditioners such as buses and trucks; the same shall apply hereinafter) may proliferate bacteria and fungi when used for a long time. In addition, unpleasant odors caused by smoking may spread in the vehicle air conditioner and the passenger compartment, and it is desirable to perform regular cleaning.

  When the vehicle-mounted air conditioner or the vehicle interior is cleaned using the mist generator 1 of the present invention, the mist generator 41 of the mist generator 1 of the present invention is provided near the inlet G of the vehicle-mounted air conditioner A as shown in FIG. When the operation setting of the vehicle air conditioner A is set to circulation in the vehicle interior, the mist or dry mist injected from the mist generating unit 41 is sucked from the intake port G of the vehicle air conditioner A, and the intake air filter of the vehicle air conditioner A is The vehicle interior can be reached while passing, and both the in-vehicle air conditioner A and the vehicle interior can be cleaned at once. The amount of sterilizing solution and deodorant solution (cc or g), the amount of mist generated (cc or g / min), the treatment time, etc. can be set according to the capacity of the on-vehicle air conditioner A and the size of the passenger compartment. .

  Conventionally, a method of injecting mist is known as a method for cleaning an in-vehicle air conditioner. However, since the particles of mist to be injected are large, it has been difficult to reliably and effectively clean the details. On the other hand, since the mist generating apparatus 1 of the present invention can inject mist, dry mist, or both at the same time, the cleaning liquid reaches the details in the vehicle and can be reliably cleaned.

(Usage example 3 of mist generator: Cleaning of indoor air conditioners, etc.)
The mist generator 1 of the present invention can also be used for indoor air conditioner B (FIG. 14: In addition to home air conditioners, including air conditioners installed in public facilities and the like; the same applies hereinafter) and indoor cleaning. When the indoor air conditioner B is used or not used for a long period of time, bacteria, mold, etc. may propagate. In addition, in the indoor air conditioner B provided in a smoking room, an unpleasant odor due to smoking may spread in the indoor air conditioner B or in the room. For this reason, the room provided with the indoor air conditioner B or the indoor air conditioner B needs to be periodically cleaned.

  When the indoor air conditioner B and the room are cleaned using the mist generating apparatus 1 of the present invention, the mist generating part 41 of the mist generating apparatus 1 is disposed in the vicinity of the inlet of the indoor air conditioner B as shown in FIG. After setting B to the indoor air circulation mode, the mist or dry mist sprayed from the mist generating unit 41 of the mist generating device 1 is sucked from the suction port of the indoor air conditioner B to clean the inside of the indoor air conditioner B and the room. I do.

  Conventionally, as a method for cleaning an indoor air conditioner, a method of injecting mist is known. However, since mist particles are large, it has been difficult to reliably and effectively clean the details. On the other hand, since the mist generating apparatus 1 of the present invention can inject dry mist having a small particle diameter or both mist and dry mist, the cleaning liquid can be delivered to the indoor air conditioner B and the interior details. And cleaning can be performed effectively.

(Mist generator usage example 4: indoor cleaning)
The mist generating apparatus 1 of the present invention can also be used for cleaning commercial / public facilities, offices, factory equipment (hereinafter referred to as “facility etc.”). As facilities become older, mold and bacteria may breed. In addition, unpleasant odors caused by smoking may spread in facilities. For this reason, facilities etc. need to be cleaned regularly.

  When a facility or the like is cleaned using the mist generating apparatus 1 of the present invention, a stationary type (desktop type) blower H as shown in FIG. 15 is installed in the facility after the facility is closed or closed. The mist generator 1 of the present invention is set in the blower H. The dry mist sprayed from the mist generating part 41 of the mist generating device 1 is sent out by the blowing means of the blower H, and the periphery of the place where the blower H is installed is cleaned with the sent dry mist. By adjusting the installation location and the number of installation of the blower H, the inside of the facility or the like can be cleaned effectively and at low cost.

(Mist generator use example 5: Area cooling)
The mist generator 1 of the present invention can also be used for area cooling (including humidification) of facilities and the like. In this case, a stationary type (desktop type) blower H as shown in FIG. 15 is installed in the required number of facilities, and the mist generator 1 of the present invention is set in the blower H. When the liquid mixture which added the safe fragrance | flavor etc. to water is supplied to the mist generator 1, and it sprays by making it into dry mist, when dry mist evaporates, heat will be taken and the ambient temperature of the air blower H will be several degreeC. It can go down and give a cool feeling to the people who are located there. In addition, a fragrant space can be created by the fragrance mixed in the gas, and a place of relaxation and moisture can be provided to people visiting the facility. The mist generating device 1 of the present invention can be formed into a belt shape and attached to a ceiling, a wall, a partition or the like, and liquid can be supplied thereto to eject dry mist.

  In any of the above-described embodiments, a fluid passage portion 40 through which a fluid that is a mist generating raw material passes and a mist generating portion 41 that generates mist from the mist preparing portion 30 are formed in series, as shown in FIG. In addition, the fluid passage portion 40 and the mist generating portion 41 can be separated and connected to each other by a connecting tool T2 such as a hose or a tube.

  Each of the above embodiments is a case where two metal thin plates 2 and 3 are laminated, and one metal thin plate 2 (FIG. 2 (b)) is subjected to single-sided etching to provide a fluid inlet recess and a passage filter groove. , A groove for a passage, a groove for a distribution path of a mist preparation section, a groove for a gate, and a recess for a merge chamber, but a recess for a fluid inlet and a passage by single-side etching on the laminated surface of both metal thin plates 2 and 3 Forms a filter groove, a passage groove, a distribution channel groove for the mist preparation section, a gate groove, a confluence chamber recess, and a fluid inlet recess, a passage filter groove, a passage groove, and a mist preparation section distribution path. The metal thin plates 2 and 3 are laminated so that the groove for the gate, the groove for the gate, and the concave portion for the merge chamber are opposed to each other, and the fluid inlet, the passage filter, the fluid passage, and the distribution path of the mist preparation unit between the two metal thin plates 2 and 3, Stabilization gates and merge chambers can also be formed. Furthermore, the recess for fluid inlet, the groove for passage filter, the groove for passage, the groove for distribution channel of the mist preparation section, the groove for gate, and the recess for junction room formed in the thin metal plate 2 are arranged in the thickness direction of the thin metal plate 2. The metal thin plate 3 is laminated thereon, a flat metal thin plate having nothing formed under the metal thin plate 2 is laminated thereon, and the fluid inlet is formed by the three metal thin plates. A passage filter, a fluid passage, a distribution path of a mist preparation section, a stabilization gate, and a merge chamber can be formed.

  Although the said embodiment is a case where the metal thin plates 2 and 3 and the metal thin plate piece 15 are used, plastics, ceramics, etc. can also be used for a use material according to a use, and each use temperature, chemical resistance, and required intensity | strength. It is possible to meet requirements such as required flexibility.

  Fluid flow path formation with plastic can be formed by using photosensitive resin, stamping plastic sheet, forming by chemical etching, etc., using 3D modeling equipment, injection molding, etc. The bonding can be performed using thermal processing, an adhesive method, or the like.

  The formation of the fluid circuit using ceramic can be performed by forming each layer using a green sheet, placing the green sheets on both sides, and then firing them. Alternatively, it can be formed by a method in which a mold is prepared, a mixture of ceramic powder and resin is molded under pressure, laminated, and fired at a high temperature.

  Since the mist generating device of the present invention can inject mist, dry mist, and mixed mist of both, it includes automobile engine cleaning, in-vehicle air conditioner and vehicle interior cleaning, home air conditioner and indoor cleaning, facility cleaning, It can be used for various purposes such as area cooling for facilities. Furthermore, sterilization and deodorization cleaning of indoors, kitchens, bathrooms, toilets, and ventilation ducts of kitchens can be performed. It can also be used for cleaning in other fields. In either case, a commercially available pressure vessel, or a pressure device having another shape or structure can be used.

DESCRIPTION OF SYMBOLS 1 Mist generator 2 Metal thin plate 2a Metal thin plate 3 Metal thin plate 4 Fluid inlet recess 5 Passage filter groove 5a Protrusion 6 Passage groove 7 Distribution channel groove 8 Gate groove 9 Junction chamber recess 10 For supplying cleaning agent Concave part 11 Inlet filter hole 12 Mist nozzle (injection hole)
DESCRIPTION OF SYMBOLS 13 Cleaning agent insertion hole 14 Inlet hole 15 Metal thin plate piece 16 Inlet filter 17 Screw 18 Connector 19 Foreign material reservoir chamber 20 Fluid inlet 21 Passage filter 22 Fluid passage 23 Distribution channel 24 Stabilization gate 25 Merge chamber 26 Nozzle 27 Cleaning agent inlet DESCRIPTION OF SYMBOLS 30 Mist preparation part 31 Branching path 33 Expansion part 34 Liquid supply flow path 35 Communication path 36 High pressure gas flow path 37 Arc recessed part 40 Fluid passage part 41 Mist generation part A Car-mounted air conditioner B Indoor air conditioner D Intake duct F Intake filter G Inlet H Stationary type (desktop type) blower S Pressure vessel (spray can)
T, T2 hose (tube)

Claims (11)

In a mist generating method in which fluid is pressed into a mist generating device to generate mist,
A fluid is press-fitted into a mist generator, divided into two or more branches of the mist generator, the flow velocity is changed, fluids with different flow velocities are merged and the fluids collide with each other, and the fluid molecules The loose bond is broken to make the particle size uniform, and a stable mist is ejected from the nozzle.
A mist generating method characterized by the above. In a mist generating method in which fluid is pressed into a mist generating device to generate mist,
The gas compatible fluid is press-fitted into the mist generator and sent to the stabilization gate of the mist generator, and is sent from the stabilization gate into the confluence chamber having a larger cross-sectional area to promote the gasification of the liquefied gas. The fluid is agitated by the above, the loose bonds between the fluid molecules are broken to make the particle size uniform, and a stable mist is ejected from the nozzle.
A mist generating method characterized by the above. In a mist generating method in which fluid is pressed into a mist generating device to generate mist,
Using two fluids, high pressure gas and liquid,
The high-pressure gas is injected into the gas flow path of the mist generator, the high-pressure gas is sent from the gas flow path through the narrower stabilization gate into the confluence chamber wider than the stabilization gate, and the flow velocity of the fluid passing through the stabilization gate To reduce the pressure of the stabilization gate, the fluid is sucked into the stabilization gate from the fluid passage of the mist generating device, and the high-pressure gas and liquid merged in the stabilization gate are sent into the merge chamber and Stir the high-pressure gas and the liquid, break the loose bonds between the fluid molecules, uniform the particle size, and eject a stable mist from the nozzle.
A mist generating method characterized by the above. In the mist generating method according to any one of claims 1 to 3,
Two or more nozzles in the mist generator have different hole diameters. From the nozzle having a large hole diameter, a mist having a large particle diameter is generated, and from a nozzle having a small hole diameter, a dry mist having a small particle diameter is generated. Squirt,
A mist generating method characterized by the above. In a mist generator that presses fluid into a mist generator and generates mist,
A fluid inlet through which a fluid is press-fitted, a fluid passage through which the fluid press-fitted into the fluid inlet flows, a mist preparation unit communicating with the tip of the fluid passage, and a nozzle communicating with the mist preparation unit, The loose bonds between the molecules of the fluid sent from the fluid passage are broken so that the particle size is uniform and a stable mist can be ejected from the nozzle.
The mist generator characterized by the above-mentioned. The mist generator according to claim 5,
The fluid passage part through which the fluid to be the mist generating raw material passes and the mist generating part for generating mist from the mist preparing part are separated, and both can be connected with a connector.
The mist generator characterized by the above-mentioned. In the mist generating device according to claim 5 or 6,
The mist preparation unit has two or more distribution paths for distributing the fluid sent from the fluid passage, at least a stabilization gate for stabilizing the pressure and flow rate of the fluid sent from these distribution paths, and a tip of the stabilization gate. Two or more branch paths provided, and a merge chamber in which the fluid that has passed through the branch paths merges,
The at least two or more branch paths have different passage lengths or widths so that the fluids passing through the branch paths have different flow rates, and the merging chamber joins the fluids that have passed through the two or more branch paths at different flow rates. The fluids collided and the loose bonds between the fluid molecules were broken so that the particle size was equalized and a stable mist was ejected from the nozzle.
The mist generator characterized by the above-mentioned. In the mist generating device according to claim 5 or 6,
The mist preparation section is provided with two or more distribution paths for distributing the fluid sent from the fluid passage, at least a stabilization gate for stabilizing the pressure and flow rate of the fluid sent from these distribution paths, and at the front of the stabilization gate. Provided with a merged room,
The confluence chamber is wider than the stabilization gate, the fluid flowing through the stabilization gate is agitated to promote gasification of the liquid, and loose bonds between the fluid molecules are broken to align the particle size. And a stable mist was ejected from the nozzle.
The mist generator characterized by the above-mentioned. In the mist generating device according to claim 5 or 6,
The mist preparation unit includes a stabilization gate that stabilizes at least the pressure and flow rate of the fluid sent from the fluid passage, and a merge chamber provided at the end of the stabilization gate,
The stabilization gate is provided at the tip of the fluid passage,
The confluence chamber is wider than the stabilization gate, the fluid flowing through the stabilization gate is agitated to promote gasification of the liquid, and loose bonds between the fluid molecules are broken to align the particle size. And a stable mist was ejected from the nozzle.
The mist generator characterized by the above-mentioned. In the mist generating device according to any one of claims 5 to 9,
The mist preparation unit is provided at two or more distribution passages for distributing the high-pressure gas sent from the high-pressure gas passage, a stabilization gate for stabilizing the flow rate of the high-pressure gas sent from the distribution passage, and the front of the stabilization gate. And a communication passage through which fluid is sent from the fluid passage,
The stabilization gate is formed narrower than the high-pressure gas channel side so that the flow rate of the high-pressure gas sent from the high-pressure gas channel is faster,
The confluence chamber is formed wider than the stabilization gate,
A mist injection hole is opened in the merge chamber,
The communication path is connected to a stabilization gate;
The communication passage is formed narrower than the stabilization gate, and when the flow rate of the high-pressure gas passing through the stabilization gate increases and the inside of the stabilization gate becomes low pressure, the liquid in the liquid passage passes through the communication passage and becomes the stabilization gate. Inhaled,
The mist generator characterized by the above-mentioned. In the mist generating device according to any one of claims 5 to 10,
A mist generator is formed by laminating thin plates,
Between the laminated thin plates, at least a fluid passage, a mist preparation unit, a distribution path of the mist preparation unit, a stabilization gate, and a merge chamber are formed,
The mist generator characterized by the above-mentioned.

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