WO2014087537A1

WO2014087537A1 - Mist generation device

Info

Publication number: WO2014087537A1
Application number: PCT/JP2012/081785
Authority: WO
Inventors: 義久林
Original assignee: 株式会社Ｅｉｎｓ
Priority date: 2012-12-07
Filing date: 2012-12-07
Publication date: 2014-06-12

Abstract

The purpose of the present invention is to selectively and sufficiently generate a mist the particle size of which is small. A mist generation device (1) is provided with the following: a nozzle group having a plurality of pairs of nozzles (30), in the interior of a mist generation chamber (2), that are disposed facing each other so that spray flows (F) are caused to collide, and in which the plurality of pairs of nozzles (30) are arranged in a column so as to sandwich a collision region (S) of the spray flows (F); a nozzle cover (50) that covers the upper and lateral portions of the nozzle group; and a mist delivery port (21).

Description

Mist generator

The present invention relates to a mist generating device that is suitably used in bathrooms, beauty instruments, and the like.

Equipment that generates mist by making liquid fine particles is used in various fields such as bathrooms, beauty instruments, humidifiers, and agricultural chemical sprayers. As a method of generating mist in these applications, there are known methods of colliding jet flows ejected from a plurality of nozzles, and various methods for refining water particles and selectively extracting only fine particles have been proposed. (See Patent Documents 1 to 6).

Patent Document 1 describes a method of refining water particles by causing a high-speed vortex flow to collide at an angle of 80 to 90 °. Patent Document 2 describes a mist generation method in which two nozzles are oriented at a groove angle of 40 to 140 °, and a water flow is collided at an intersection rate of 20 to 80%.

Also, Patent Documents 3 to 5 describe devices that generate mist by causing a jet stream to collide in front.

Further, Patent Document 6 discloses that a water flow is caused to collide at an angle of approximately 90 ° in the small diameter cylindrical portion to generate mist, and the flow path regulating body is disposed in the large diameter cylindrical portion communicating with the downstream side of the small diameter cylindrical portion. Describes a spray trap device that removes coarse water droplets and allows only fine mist to pass through.

Japanese Patent No. 3544350 (Claims) Japanese Patent No. 4847330 (Claims) Japanese Patent Laying-Open No. 2003-465 (FIG. 6) Japanese Utility Model Publication No. 36-18384 (FIGS. 1 and 2) Japanese Patent Publication No. 40-11891 (Fig. 3) JP 2006-55714 A (Claims, FIGS. 1 and 2 etc.)

However, the mist generator described above has not yet produced a mist with a small particle diameter and a sufficient amount of mist.

In view of the above-described technical background, the present invention provides a mist generator that can selectively and sufficiently generate mist having a small particle diameter.

That is, the present invention has the configurations described in [1] to [5] below.

[1] In the mist generating chamber,
A group of nozzles arranged in tandem in a manner having a plurality of pairs of nozzles arranged so as to collide with the jet flow, and the plurality of nozzle pairs sandwiching the collision region of the jet flow;
A nozzle cover covering the upper side and the side of the nozzle group;
A mist generating device comprising a mist delivery port.

[2] The mist generating device according to item 1, wherein the plurality of nozzle pairs are installed inclined from one end side to the other end side in the column direction.

[3] The mist generating device according to item 2 above, wherein the nozzle cover is inclined in the column direction following the inclination direction of the plurality of nozzle pairs.

[4] The mist generating apparatus according to the

above item

2 or 3, wherein an airflow flowing from a higher side to a lower side of a plurality of inclined nozzle pairs is formed in the mist generating chamber.

[5] The mist generating device according to item 4, wherein the mist delivery port is provided on a lower side of a plurality of nozzle pairs in which the mist delivery port is inclined.

According to the invention described in [1], since the jet flow collision occurs for each of a plurality of pairs of nozzles, and the jet flow that has not collided with the jet flow collides with the nozzle cover, it is sufficiently fine in a single collision. Large particles that have not been converted also collide with the nozzle cover. Thus, the jet flow and the pulverized water particles are repeatedly collided, and the number of collisions is increased, so that the water particles are further miniaturized. As a result, more fine mist can be generated. Moreover, since coarse water particles fall, only fine water particles can be taken out as mist.

According to the invention described in [2] and [3], the pulverized water particles produced by the high-order nozzle pair collide with the nozzle cover even in the process of flowing slowly to the low-order side while falling slowly. And refinement | miniaturization of a water particle can be advanced by the increase in the frequency | count of a collision.

According to the invention described in [4], since the air in the mist generating chamber flows from the high side to the low side of the nozzle pair, the pulverized water particles by the high side nozzle pair are reliably sent to the low side, and the low level It can also be made to collide with the nozzle cover on the side. And refinement | miniaturization of a water particle can be advanced by the increase in the frequency | count of a collision.

According to the invention described in [5], since the generated mist moves together with the airflow, the mist can be efficiently sent out from the outlet arranged on the downstream side of the airflow.

It is sectional drawing which shows one Embodiment of the mist generator of this invention. It is sectional drawing of the mist generating chamber in the mist generating apparatus of FIG. It is a perspective view of a nozzle unit. It is the top view which looked at the nozzle unit of FIG. 3 from the bottom wall side of the mist generating chamber. It is sectional drawing which shows the method of attaching a nozzle and a nozzle to a side plate. It is the top view which looked at the nozzle plate which comprises the nozzle of FIG. 5 from the back block side. It is a figure which shows the collision state of the jet flow in a nozzle unit.

1 to 6 show an embodiment of the mist generator of the present invention.

The mist generating device (1) includes a mist generating chamber (2), a water supply unit (3), and a blower unit (4) in the exterior case.

The mist generating chamber (2) is a space partitioned by a rectangular bottom wall (11), four side walls (12) (13) (14) (15) and a rectangular lid plate (20). A nozzle unit (59) in which a plurality of nozzles (30) and a nozzle cover (50) are integrally assembled, a water supply pipe (46), and members attached thereto are accommodated.

As shown in FIGS. 1 and 2, in the mist generation chamber (2), the bottom wall (11) is high on the first side wall (12) side of the short side and lower on the fourth side wall (15) side facing the side wall (11). It is gently inclined. A bracket (16) for fixing one end of the nozzle unit (59) is attached near the upper end of the first side wall (12), and a vent hole (17) is provided below the bracket (16). In addition, the second side wall (13) and the third side wall (14) on the long side are positioned at the other side of the nozzle unit (59) at a position closer to the fourth side wall (15) and lower than the bracket (16). A cylindrical member (18) for fixing is attached. The lid plate (20) has a mist delivery port (21) at a position close to the fourth side wall (15) side, and closes the upper surface of the mist generating chamber (2). It is attached to the vicinity so as to be freely rotatable.

As shown in FIG. 3 to FIG. 6, the nozzles (30) have a total of eight nozzles (two nozzles), and four nozzles (30) constitute a nozzle group. The nozzle (30) has a circular shape in plan view, and includes a nozzle plate (31) and a rear block. The nozzle plate (31) has sixteen water discharge ports (32) whose tips are reduced in diameter in order to increase the water jet power, and a circular recess (33) is formed in the center of the rear surface. . An internal thread portion (34) is formed on the side surface of the recess (33). On the other hand, the rear block (35) has a circular wall (38) standing on the front surface of the plate portion (37) between the outer peripheral edge and the central water guide hole (36), and on the rear surface the water guide hole (36). ) Projecting externally threaded (40). Moreover, the external thread part (39) is formed in the outer peripheral surface of the said circular wall (38). When the female threaded portion (34) of the recess (33) of the nozzle plate (31) and the circular wall (38) male threaded portion (39) of the rear plate (35) are screwed together, A nozzle (30) is formed in which a space is formed and the concave portion (33) functions as a water storage portion, and water introduced into the concave portion (33) from the water guide hole (36) is ejected from 16 water outlets (32). It is formed.

The nozzle cover (50) is composed of left and right side plates (51) having a substantially rectangular shape and an upper surface plate (55) bridged between them, and has an inverted U shape with a square cross section.

The side plate (51) is a member for attaching the nozzle (30) and covering the side of the nozzle group. Four nozzle mounting holes (52) are formed at equal intervals along the longitudinal direction of the side plate (51) below the vertical center of the side plate (51). Further, the upper end portion of the side surface plate (51) is bent toward the nozzle (30) to form an attachment portion (53) for fixing the upper surface plate (55). Further, a hole (54) for fixing the side plate (51) at a predetermined position on the second side wall (13) and the third side wall (14) is formed near the end of the side plate (51). ing.

The upper surface plate (55) is a member that covers the upper side of the nozzle group, and defines the distance between the opposing nozzles (30) by its width dimension, and is ejected from the discharge port (32) of the nozzle (30). It is a member that forms the flow collision region (S). The upper plate (55) is longer than the side plate (51), and the portion extending from the side plate (51) is bent and fixed to the bracket (16) of the first side wall (12). Used as part (56).

As shown in FIG. 5, the nozzle (30) is attached to the side plate (51) by inserting the male screw (40) of the rear block (35) through the nozzle mounting hole (52) of the side plate (51). Then, the tip is projected on the opposite surface, and a nut, a water pipe connecting member or the like is engaged and stopped. FIG. 5 shows an example in which the nut (45) is used. Then, the two side plates (51) with the four nozzles (30) attached are arranged in parallel so that the nozzles (30) face each other, and the upper surface plate (55) is placed on the upper attachment portion (53). Attach with screws. As a result, the nozzle cover (50) is formed, and the nozzle unit (59) in which the nozzle group composed of four to eight nozzles (30) and the nozzle cover (50) are positioned is assembled. In the nozzle unit (59), the four nozzle pairs are arranged in tandem so as to sandwich the collision area (S).

In the nozzle unit (59), the left and right nozzles (30) face each other at an angle of 180 ° from the front, and the space surrounded by the left and right side plates (51) and the upper surface plate (55) is the jet flow (F). It becomes a collision area (S). Since the mounting position of the nozzle (30) on the side plate (51) is below the center in the vertical direction, the collision area (S) extends to above the nozzle (30).

The nozzle unit (59) has an attachment portion (56) of the top plate (55) attached to the bracket (16) of the first side wall (12) of the mist generating chamber (2) on one end side, and the other end side. In FIG. 4, the front end convex part of the cylindrical receiving member (18) is attached to the left and right second side walls (13) and the third side wall (14) in a state of being inserted into the holes (54) of the left and right side plates (51). Since the bracket (16) is mounted at a position higher than the cylindrical receiving members (18) of the left and right side walls (13), (14), the nozzle unit (59) is higher on the first side wall (12) side, It is attached to the mist generating chamber (2) in an inclined state where the fourth side wall (15) side is lowered. Further, since the lower ends of the left and right side plates (51) are separated from the bottom wall (11) of the mist generating chamber (2), air and mist can freely flow under the nozzle unit (59).

In the water supply section (3), the water in the inverted water bottle (60) is supplied to the water receiving container (62) through the valve (61), and the water level in the water receiving container (62) is constant. It is kept. The water is heated by the heater (63) installed in the water receiving container (62) to become warm water, and is conveyed by the pump (64) through the water pipe (46) to the mist generating chamber (2), where the pressurized hot water Is supplied to all the nozzles (30) (see FIG. 4).

In the air blowing part (4), the space adjacent to the mist generating chamber (2) is an air heating chamber (70) in which a heater (71) is installed, and the air heating chamber (70) is connected via a vent (17). It communicates with the mist generation chamber (2). The air heated in the air heating chamber (70) flows into the mist generating chamber (2) from the vent (17) by the blower (72) and is sent into the mist generating chamber (2) from the vent (17) side. (21) Causes a gentle airflow flowing to the side.

In the mist generator (1) described above, mist is generated as follows (see FIGS. 3 and 7).

The pressurized hot water supplied to the nozzle (30) is discharged as a jet flow (F) from the discharge port (32), collides with the jet flow (F) discharged from the opposing nozzle (30), and is crushed. Become a large number of fine water particles. A part of the jet stream (F) collides with the nozzle cover (50) and is pulverized into a large number of fine water particles. Further, even if the particles are pulverized by collision between the jets (F) or by collision with the nozzle cover (50), the water particles that have been repelled without being sufficiently refined collide with the nozzle cover (50) again and are pulverized. It becomes a lot of fine water particles. As long as the water particles do not fall, they repeatedly collide in the collision area (S) and are crushed and refined each time. The airflow in the mist generating chamber (2) is directed from the vent (17) side toward the outlet (21) side. That is, since air flows from the high side to the low side of the inclined nozzle unit (59), the water particles generated on the upstream side of the air flow slowly flow down to the nozzle cover (50) while flowing downstream. Repeat the collision. Since the lower end position of the side plate (51) is lower toward the downstream side of the airflow, the collision is repeated until the bottom wall (11) is reached. Since the water particles refined by pulverization have a very slow falling speed, they float as a mist (M) from the lower end of the side plate (51), and also from the lower side opening of the nozzle cover (50). M) drifts out. The mist (M) coming out of the nozzle cover (50) is carried on the air current and carried to the delivery port (21). On the other hand, the coarse water particles (W) have a fast drop speed, and thus fall without reaching the delivery port (21). Therefore, only fine water particles can reach the delivery port (21), and are sent out from the mist generating chamber (2) as mist composed only of the fine water particles. The delivered mist is supplied to bathrooms and beauty instruments.

Note that the dropped water particles are collected on the side of the fourth side wall (15) through the inclined bottom wall (11), and are recycled to the water receiving container (62).

According to the mist generating device of the present invention, since the collision of the jet flow occurs for each of a plurality of pairs of nozzles, the amount of mist generated is large. Furthermore, the jet flow that did not collide with the jet flow collides with the nozzle cover. Further, large particles that are not sufficiently miniaturized by a single collision also collide with the nozzle cover. The pulverized particles by the higher nozzle pair collide with the nozzle cover even in the process of flowing to the lower side (downstream of the airflow) while falling. The air in the mist generating chamber flows from the high side to the low side of the nozzle pair, so that the pulverized particles from the high-side nozzle pair can be reliably sent to the low side and can collide with the nozzle cover on the low side. it can. In this way, in addition to the collision between the jet streams, the jet stream collides with the nozzle cover, and the crushed water particles repeatedly collide with the nozzle cover. As the number of collisions increases, water particles become finer. As a result, a large amount of fine water particles are generated, and more fine mist can be generated. Moreover, since coarse water particles fall, only fine water particles can be taken out as mist.

Since the number of collisions of the jet flow and the pulverized particles is increased by covering the nozzle group with the nozzle cover, even when the nozzle unit is arranged horizontally, the jet flow collides with the open space without the nozzle cover. The effect of refining water particles is improved. By tilting the nozzle unit, the number of collisions can be further increased, and as a result, water particles can be further refined and the amount of mist generated can be increased. The inclination angle of the nozzle unit is not limited, but is preferably about 5 to 20 °. The inclination angle of the nozzle unit (59) in the illustrated example is 10 °. Further, the inclination angle of the plurality of nozzle pairs and the inclination angle of the upper surface plate of the nozzle cover do not necessarily coincide with each other, and the present invention includes cases where the inclination angles are different.

The mist generating device of the present invention is not limited to the above embodiment, and various modifications are possible.

The number of nozzle pairs need only be two or more, and the number of pairs is not limited. Also, the shape of each nozzle is not limited, but a larger number of jets can generate a large amount of mist, so that a nozzle having a plurality of discharge ports is preferable.

The plurality of nozzle pairs is not limited to be arranged in an inclined manner, and a case where the plurality of nozzle pairs are arranged horizontally is also included in the present invention. This is because, as described above, by covering the nozzle with the nozzle cover, an effect of refining water particles due to an increase in the number of collisions can be obtained.

In addition, the presence or absence of airflow in the mist generating chamber is optional, but by blowing air from the higher side to the lower side of the inclined nozzle pair, the water particles can be reliably moved to the lower side, and as a result the number of collisions Can be increased.

Also, the position of the delivery port in the mist generating chamber is not limited, but it is preferably provided on the lower side of the inclined nozzle pair and on the downstream side of the airflow in order to efficiently send out the generated mist.

Furthermore, it is possible to make a hole in the nozzle cover so that a part of the water particles crushed in the collision area can be sent out of the collision area. In this way, the amount of mist generated can be increased. However, since the effect of refining the particle diameter is reduced by reducing the number of times the water particles are projected, coarse particles may be mixed in the generated mist. Accordingly, the presence / absence, size, and number of holes may be appropriately set according to the use of the mist and the required fine degree of mist. Since the nozzle cover of the illustrated example described above is an assembly of the side plate and the top plate, the above change can be made by simply replacing the top plate (55) without holes with the top plate with holes.

The terms and expressions used herein are for illustrative purposes and are not to be construed as limiting, but represent any equivalent of the features shown and described herein. It should be recognized that various modifications within the claimed scope of the present invention are permissible.

The mist generating device of the present invention can be suitably used as a mist generating source for bathrooms and beauty equipment.

1 ... Mist generator
2 ... Mist generation chamber
3 ... Water supply section
4… Blower part
11 ... Bottom wall
12 ... 1st side wall
13 ... Second side wall
14 ... Third side wall
15 ... 4th side wall
16 bracket
17… Vent
18 Cylindrical receiving member
20… Cover plate
21 ... Outlet
30 ... Nozzle
31 ... Nozzle plate
32 ... Water outlet
35 ... Back block
36 ... Water guide hole
40 ... Male thread
46 ... Water pipe
50 ... Nozzle cover
51 ... Side board
53 ... Mounting part
54 ... hole
55… Top plate
56 ... Mounting part
59 ... Nozzle unit F ... Jet flow S ... Collision area M ... Mist W ... Falling particles

Claims

In the mist generating chamber,
A group of nozzles arranged in tandem in a manner having a plurality of pairs of nozzles arranged so as to collide with the jet flow, and the plurality of nozzle pairs sandwiching the collision region of the jet flow;
A nozzle cover covering the upper side and the side of the nozzle group;
A mist generating device comprising a mist delivery port.
The mist generating device according to claim 1, wherein the plurality of nozzle pairs are installed inclined from one end side to the other end side in the column direction.
The mist generating device according to claim 2, wherein the nozzle cover is inclined in the column direction following the inclination direction of the plurality of nozzle pairs.
The mist generating device according to claim 2 or 3, wherein an airflow flowing from a higher side to a lower side of a plurality of inclined nozzle pairs is formed in the mist generating chamber.
The mist generator according to claim 4, wherein the mist delivery port is provided on a lower side of a plurality of nozzle pairs arranged in an inclined manner.