JP2513479B2 - Method and apparatus for mixing and ejecting liquid - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for mixing liquids, a method for discharging or ejecting the liquids, and an apparatus for them.

[Conventional technology]

Originally, the methods of mixing a plurality of types of liquids are roughly classified into the following two types. That is, one is a dynamic mixing method and the other is a static mixing method. The former is to perform the mixing action by the physical movement of the compounded liquid added from the outside such as a stirring blade or vibration, while the latter does not add any physical movement from the outside and the liquid is stored in a static container. The turbulent flow generated by moving the slab causes the mixing action.

The above methods have been conventionally included in various operations as independent mixing steps, but recently, particularly in mixing and discharging or jetting of liquids, there are many cases in which they are integrated. . For example, it is a case of handling a mixed liquid curable resin. Or, for example, when adjusting the color tone in painting. In all of these cases, the process was performed immediately before the discharger (gun), that is, using the one in which the gun and the mixer were directly connected. Next, representative examples of these will be given.

(1) Gun with static mixer See FIG. A discharge gun 135 is directly connected to one end of a baffle plate type mixer 130. Pressurized three kinds of liquids P, Q, R flow in from one inlet, they merge, move to the downstream, and are mixed by the baffle plates 131A, 131B, ... . However, the mixing effect is very low and it has to be repeated several times. The greater the number of times, the higher the mixing effect, so
The length of the mixer is as short as 300 mm, and the long one as long as 1000 mm. This length is the length of the mixing chamber, and such a length causes various problems. First, the liquid in the mixing chamber is incompletely mixed, and a large amount of liquid results in a large amount of waste. Secondly, they may react during the long journey and cannot be discharged.
Third, cleaning is difficult. Fourth, the mixer is often not equipped with a warmer to prevent reaction,
It was not suitable for high-viscosity paints and use in winter.

(2) Gun with rotary stirring blade mixer See FIG. 9. A discharge gun 145 is directly connected to one end of a horizontal stirring blade type mixer 140. The agitation tank needs to have a volume of at least 500 cc, and in this case as well, the amount of waste increases. Further, the seal 143 on the high-speed rotating shaft portion of the stirring blade was easily damaged, and maintenance was difficult.

[Problems to be Solved] In the above-mentioned conventional methods, it is judged that further improvement means is difficult due to their structure. Therefore, the present inventor examined the improvement measures from the viewpoint completely different from the above-mentioned conventional method.

The motive of the present invention was to shorten the mixing process and the mixing time and to reduce and simplify the apparatus.

[Means for solving problems]

The gist of the present invention is to collect a plurality of types of mixed liquids and allow them to flow into a single flow path, apply the flow to a collision plate, and diffuse it in the full-angle direction on the plate, and to make them two flows. To each of the two bottleneck, and by making the outlets of these two bottleneck face each other, the compounded liquids flowing out from these bottleneck are collided directly, thereby effectively mixing the liquids, Further, if necessary, the above-mentioned operations are repeated in series to further enhance the mixing effect, and a method of introducing these mixed liquids to a nozzle to discharge or jet them and their devices.

Next, each of these items will be described.

(1) Basic method of liquid mixing See FIG. First, a liquid Lc containing a mixture of liquids of plural kinds A, B, C, ...
Pour in. Needless to say, the power source is the liquid pressure under which the liquid is pressurized. Prior to that, a brief description will be given on the method of blending these plural kinds of liquids. According to the conventional method, as shown in the “X ₂ ” frame in the figure, the pumps Pd, Pe, Pf, ... The liquid mixed by the action of the baffle plate in the device is pressurized by the pump P.
Alternatively, as can be seen in the "X ₃ " box in the figure, a method is used in which the liquid mixed and roughly mixed by the agitator 9 or the like is pressurized by the pump P and pressure-fed into the inflow passage 1. However, in order to mix more precisely and quickly, the patent application No. Showa 61 filed by the present applicant
-291918 "Liquid mixing ratio setting method and device"
Is preferred. The outline is shown in the "X ₁ " box in Fig. ₁ . Briefly explaining it, multiple liquids A, B,
Pump up C, ..., and disconnect valves 6A, 6B, 6C,
Supply to ... However, these valves are intermittently opened and closed by the pulse controller PSC according to the set pulse signals, so that the liquid passes through only the total of the "open" times. Since the “open” time of these pulses can be controlled to a very small amount by the pulse controller PSC, the amount of liquid flowing out and out of each is adjusted to a very small amount. Moreover, it can be performed easily and quickly.

In this way, the liquid blended by various methods
Lc is supplied into the inflow passage 1 under a pressurized condition. When flowing out from the inflow passage 1, it is desirable to give a velocity of at least 30 m / sec or more. The mixed liquid Lc ₁ that has flown out collides with a collision plate 2 that is provided at a right angle to the flow direction. It is desirable that the upper surface of the collision plate 2 is substantially flat and disk-shaped, and that it is substantially concentric with the axis of the inflow passage 1. The compounded liquid Lc _{1 that} has collided with the surface of the collision plate 2 in this way diffuses (Lc ₂ ) on the surface of the collision plate 2 in all directions. Next, these diffusion flows Lc ₂ are split into two or more flows (Lc ₃ a, L
c ₃ b, ...) and integrate them (Lm ₁ a, Lm ₁ b, ...) and lead each into two or more overflow paths 3 a, 3 b ,. By concentrating the extension lines of these bottleneck outlets in advance, the outflows (Lm ₃ a, Lm ₃ b, ...) having the required velocity from them collide with each other and enter (Lm ₃ a, Lm ₃ b, ...).
m ₄ ). As described above, due to the overlapping collision of the surface collision and the linear collision, the mixed liquid is more effectively mixed, collected in one outflow passage 4 (Lm ₅ ) and outflowed (Lm ₆ ) to the outside. There is.

(2) Multi-stage mixing method in which the basic method (1) is developed. The present invention is intended to further improve the mixing effect by repeating the operation of the basic method a plurality of times. See FIG. As described in the previous section, the liquid Lc ₄ mixed by various methods is supplied into the inflow passage 11 under a pressurized state. Then, it flows out from the flow path 11 at a required speed and collides with the collision plate 12 provided at a right angle to the flowing direction. The upper surface of the collision plate 12 is substantially flat and disk-shaped, and
It is desirable to be concentric with the 11 axis. In this way, the mixed liquid Lc _{5 which} has collided with the surface of the collision plate 12 diffuses (Lc ₆ ) on the surface of the collision plate 12. Next, these diffusive flows Lc ₆ are divided into two or more flows (Lc ₇ a, Lc ₇ b,…), and they are combined (Lm ₈ a, Lm ₈ b,…), and each two Or, it leads into the overflow path 17a, 17b, ... By concentrating the extension lines of these bottleneck exits beforehand, the outflow (Lm
_{10 a, Lm 10 b, ...} ) is混Ru went to collide with each other (Lm _11).
The liquid mixed in this manner is used again for one outflow channel 19
Guide it inside and let it flow (Lm ₁₃ ) toward the next second-stage collision plate 22. That is, the same operation as the operation in the first step can be repeated. Surface collision (Lm ₁₃ ), diffusion (Lm ₁₃ )
m ₁₄ ), diversion (Lm ₁₅ a, Lm ₁₅ b,…), aggregation (Lm ₁₆ a, Lm ₁₆
b,…), runoff from two or more bottlenecks (Lm ₁₈ a, Lm
₁₈ b, ...), end collision, mixed (Lm _19), it is of being guided to one of the outlet passage 29 by performing. That is, the overlapping collision of the surface collision and the linear collision is repeated twice so that more effective mixing can be performed. If necessary, the same mixing action as described above can be performed thirdly, and the mixing effect can be further enhanced. And finally, the sufficiently mixed liquid flows out to the outside through the outflow passage 38 (Lm ₃₀ ).
Of.

(3) Mixing and discharging or jetting method based on the above methods (1) and (2) Both of the above two methods were only mixing methods, but this method discharges the liquid mixed by the above method from a nozzle or It is a method of squirting. First, a method of connecting the outflow passage of the mixed liquid to the ejection or ejection passage in the nozzle and ejecting or ejecting the liquid will be described.
Please refer to FIG. 1 again. The liquid Lc mixed by the various methods is supplied to the inflow passage 1 under a pressurized state.
The mixed liquid Lc ₁ that has flown out collides with the collision plate 2 that is provided at a substantially right angle with respect to the flow method. The upper surface of the collision plate 2 is substantially flat and disk-shaped, and the inflow passage 1 is
It is desirable to be concentric with the axis of. In this way, the mixed liquid Lc ₁ that collides with the surface of the collision plate 2 diffuses (Lc ₂ ) on the surface of the collision plate 2. Next, these diffusion flows Lc ₂ are divided into two or more flows (Lc ₃ a, Lc ₃ b, ...),
These are integrated (Lm ₁ a, Lm ₁ b, ...) And each is led into two or more overflow paths 3a, 3b ,. By concentrating the extension lines of these bottleneck outlets in advance, the outflows (Lm ₁ a, Lm ₁ b, Lm ₁ a, Lm ₁ b,
…) Collide with each other and mix (Lm ₄ ). As described above, due to the overlapping collision of the surface collision and the linear collision, the mixed liquid is effectively mixed and collected in one outflow passage 4 (Lm ₅ ), and subsequently, the nozzle connected to the outflow passage 4 It is ejected or ejected to the outside through the ejection or ejection passage 6 in 5. In the above case, the surface collision and the linear collision are performed once, that is, temporarily, but when it is necessary to further increase the mixing effect, the completely same operation as the above is performed secondarily. It is also possible to discharge or jet from the nozzle 39 after the mixing effect is sufficiently enhanced by performing the tertiary, ... Series.

(4) Basic Structure Based on (1) Basic Method Please refer to FIG. 3 and FIG. Body 40 of the device
One outflow passage 41 is provided from the upper surface toward the inside thereof, and a cylindrical hollow chamber H communicating with the outflow passage 41 at a right angle is concentrically provided. A cylindrical collision plate 42, which is slightly smaller than the collision chamber 42, is provided in the hollow chamber H.
Necessary air gaps Su, Sc exist on the upper surface and the periphery excluding the lower surface of
Are provided and fixed by a plurality of holding pieces (locating pins) 43 and the like. A part 48 _s of the mixing chamber 48 is provided at the center of the lower surface of the collision plate 42, and
8 _s and the space Sc around the collision plate are connected by two or more bottleneck lines 47a, 47b, ... In a straight line or equiangular angles centering on the center line of the mixing chamber 48. The part 48 _s of the mixing chamber 48 _s together form a mixing chamber 48 provided in its lower and of being communicated with the outflow channel 49 of the lower.

(5) Basic Structure Based on (2) Multi-stage Mixing Method See FIGS. 6 and 7. Body of this structure 60
Internal cylindrical cavity H ₀ is provided in the short pipe 64,74,84 mating with said cavity H ₀ inner wall as a spacer in the cavity H _0,
... and the partition plate 65, ... and a plurality of cavities H ₁ divided is fitted alternately, H _2, H _3, ... are formed, also holding piece These cavities chamber 63,73,83, ... etc. Collision plates fixed by 62,7
After the cavities 2, 82, ... Are accommodated, a single inflow passage 61 is provided from above or below the cavity H ₀ to the inside thereof from the upper surface of the body 60 which is clamped and fixed by a screwed lid 90 or the like. ,
A cylindrical hollow chamber H ₁ communicating with the inflow passage 61 at a substantially right angle is provided substantially concentrically. Further, a cylindrical collision plate 62 smaller than that is provided in the cavity chamber H ₁ , and the collision plate 62 is
Necessary air gaps Su ₁ and Sc _{1 on} the upper surface and the periphery excluding the lower surface of
Is provided and fixed by a plurality of holding pieces 63 and the like.
Then, a part 68 of the mixing chamber 68 is provided at the center of the lower surface of the collision plate 62.
_s is provided, and the part 68 _{s of the} mixing chamber and the space Sc around the collision plate are centered on the center line of the mixing chamber 68 by two or more overflow paths 67a, 67b ,.ゞ It is tied in a straight line or at equal angles. A part of the mixing chamber 68 _s is integrated with the mixing chamber 68 provided below the mixing chamber 68 _s , and is connected to the inflow passage 69 below the mixing chamber 68 _s . Up to now, the structure is completely the same as the basic structure described above, but this structure is a multi-stage structure in which the structure described above is popular in series. That is, the outflow passage 69 of the first stage is used as an inflow passage to the collision plate 72 of the next second stage, a void is formed around the upper surface of the collision plate, and the lower surface thereof is aligned or evenly divided. Two or more overflows on the corner
77a, 77b, ... Also, a mixing chamber 78 is provided in the central portion thereof, and an inflow passage 79 is provided below the chamber, and if necessary,
Further, a third stage, ... Is provided, and an outflow passage 89 of the collision plate at the final stage is provided.

(6) Mixing and Discharging or Ejecting Device (4) and (5) in which Nozzle is Provided in Mixing Device See FIGS. 3 and 7. Body 40 of the device
One inflow passage 41 is provided from the upper surface toward the inside thereof, and a cylindrical hollow chamber H communicating with the inflow passage 41 at a substantially right angle is provided substantially concentrically. Further, a smaller cylindrical collision plate 42 is provided in the hollow chamber H, and the necessary upper and lower voids Su, S are provided around the upper surface of the collision plate 42 excluding the lower surface thereof.
c is provided and fixed by a plurality of holding pieces 43 and the like.
A part 48 of the mixing chamber 48 is provided at the center of the lower surface of the collision plate 42.
_s is provided, and the part 48 _{s of the} mixing chamber and the space around the collision plate are connected almost collinearly or at equal angles by two or more overflow paths 47a, 47b ,. Be done. A part 48 _s of the mixing chamber 48 is integrated with the mixing chamber 48 provided below it, communicates with the outflow passage 49 below the mixing chamber 48, and further inside the nozzle 50 attached to the lower portion of the body 40. It is connected to the discharge or jet passage 51.

The above structure is for a case where only one collision plate is used, but if necessary, a plurality of plates are used in series, that is, for the outflow passage 89 (Fig. 6) at the final stage of the multistage mixer. The nozzle 91 is connected.

[Action]

(1) Action in the basic structure of (4) Mixing device in the preceding paragraph (4) Please refer to FIG. 3 and FIG. The liquid Lc mixed by various methods is supplied into the inflow passage 41 under pressure, flows out from the inflow passage 41 at a required speed (Lc ₁ ) and collides with the collision plate 42. . The mixed liquid Lc _{1 that} has collided flatly on the surface of the collision plate 42 diffuses (Lc ₂ ) on the surface of the collision plate 42. Next, these diffusive flows Lc ₂ are divided into two or more flows (Lc ₃ a, Lc ₃ b, ...) And they are combined (Lm ₁ a, Lm ₁ b, ...) And each is divided into two. Guide into a book or more overflow path 47a, 47b, .... Since the exit lines of these bottleneck are concentrated, the outflows (Lm ₁ a, Lm ₁ b,…) with some required velocity from them collide with each other linearly (Lm ₃ a, Lm ₃ b,…) and mix (Lm ₄ ). Thus, due to the overlapping collision of the surface collision and the linear collision, the mixed liquid is effectively mixed and collected in one outflow passage 4 (Lm ₅ ).
It is leaked to the outside (Lm ₆ ).

(2) Operation in the preceding paragraph (5) Multi-stage mixing structure Please refer to FIG. The liquid Lc ₄ mixed by each method is supplied into the inflow passage 61 under a pressurized state. And at the required speed, the inflow channel
It flows out from 61, and collides with a collision plate 62 provided at a substantially right angle to the outflow direction. Then, the mixed liquid Lc _{5 which} has collided with the surface of the collision plate 62 diffuses (Lc ₆ ) on the surface of the collision plate 62. Next, these diffusive flows Lc ₆ are divided into two or more flows (Lc ₇ a, Lc ₇ b, ...) And they are combined (Lm ₈ a,
Lm ₈ b,…) and each have two or more overflows 67a,
67b, ... Lead in. Since the extension lines of these bottleneck outlets are concentrated, the outflows (Lm ₁₀ a, Lm ₁₀ b,…) from them with the required velocity will collide with each other (Lm ₁₁ ). . The liquid thus mixed is again guided into one outflow passage 69, and is allowed to flow (Lm ₁₃ ) toward the next second-stage collision plate 72. That is, the same operation as that of the first step can be repeated. That is, surface collision (L
m ₁₃ ), diffusion (Lm ₁₄ ), diversion (Lm ₁₅ a, Lm ₁₅ b,…), consolidation (Lm ₁₆ a, Lm ₁₆ b,…), runoff from two or more overflows (Lm ₁₈ a , Lm ₁₈ b,…), collision, and mixing (Lm ₁₉ )
Is carried out and is guided into one outflow passage 79. That is, the above-mentioned first (first stage) collision mixing is repeated twice (second stage) to perform more effective mixing.
If necessary, the same mixing action as described above can be further carried out in the third stage, ... to further enhance the mixing effect. And finally, the well mixed liquid flows out to the outflow passage 89.
Through the outside (Lm ₃₀ ).

(3) Mixing and discharging or jetting device provided with nozzles in the above (6) this mixing device, refer to FIGS. 3 and 7. The liquid Lc mixed by each method is supplied into the inflow passage 41 under a pressurized state. The liquid Lc ₁ flowing out from the inflow channel 41 collides with a collision plate 42 provided at a right angle to the outflow direction. The liquid Lc ₁ that collided linearly diffuses (Lc ₂ ) on the surface of the collision plate 42. Next, these diffusive flows Lc ₂ are split into two or more flows (Lc ₃ a, Lc ₃ b, ...) And they are aggregated again (Lm ₁ a, Lm ₁ b, ...) Lead into two or more overflows 47a, 47b, ... Since the extension lines of these bottleneck outlets are concentrated, the outflows (Lm ₃ a, Lm ₃ b, ...) with the required speed from them collide with each other (Lm ₄ ). . In this way, due to the overlapping collision of the surface collision and the linear collision, the mixed liquid is effectively mixed,
The particles are collected (Lm ₅ ) in one outflow passage 49, and then discharged or ejected to the outside through the ejection or ejection passage 51 in the nozzle 50 connected to the outflow passage 49. In the above case, the surface collision and the linear collision are performed once, that is, in one step. However, when it is necessary to further increase the mixing effect, the same operation as above is performed in two steps or Three steps ...
The above is performed in a series, and after the mixing effect is sufficiently enhanced, the mixture is discharged or ejected from the nozzle 91.

It is needless to say that the above-mentioned nozzle is a general term for a general-purpose nozzle, and therefore a two-fluid spray nozzle is included.

〔Example〕

Part 1. See Figure 4. Each of the two overflow paths 47a, 47b provided on the bottom surface of the collision plate 42 has a wide opening (46a, 46b).
b) What you are doing.

Part 2. See Figure 5. On the peripheral side of the cylindrical collision plate 52,
Two diversion ridges 54a, 54b are provided, and their skirts are both connected to 56a, 56b at the opening to the two overflow passages 57a, 57b provided at the bottom of the collision plate. is there.

〔The invention's effect〕

According to the method and the apparatus of the present invention, the volume of the mixing chamber is several cubic meters, and the structure is simple and there are no moving parts, and the mixing effect is high, and when a higher effect is required, It is easy to make these into a multi-stage type because they are popular in the series, and it is extremely easy to attach a nozzle etc. to these mixed amounts, not to mention the reduction in weight of the device, the reduction in volume, and the simplification of handling. It also greatly contributes to work efficiency, automation, and ultimately to reduction of production cost.

[Brief description of drawings]

FIG. 1 is an explanatory view of the operation of a basic method of liquid mixing in which surface collision and linear collision according to the present invention are also used. FIG. 2 is an operation explanatory view of a multistage type of the basic method. FIG. 3 is the basic method. FIG. 4 is a side sectional view of a mixing device of the present invention based on FIG. 4 is a perspective view of an embodiment 1 of the collision plate in the same figure, FIG. 5 is a perspective view of the same embodiment 2 of FIG. FIG. 7 is a side sectional view of the structure of the multi-stage mixing device. FIG. 7 is an explanatory view of the same as above. FIG. 8 is a side sectional view of a device in which a conventional static mixing device and a gun are integrated. Sectional side view of the device in which the device and the gun are integrated Description of main symbols 1,11,41,61 …… Inflow channel, 2,12,42,62,72,82 …… Collision plate, 3a, 3b, 17a, 17b, 27a, 27b, 67a, 67b, 77a, 77b …… bottleneck, 4,19,29,38,49,69,79 …… outflow channel, 5,39,50,91…
… Nozzle, 40,60 …… Body, 48,68,78 …… Mixing chamber, 54
a, 54b …… Diversion board, 56a, 56b …… Bottle inlet, Lc …… Compounded liquid, Lc ₁ , Lc ₅ …… Surface impingement flow of blended liquid, Lc ₂ , Lc ₆ …
… Diffusive flow of blended liquid, Lc ₃ a, Lc ₃ b, Lc ₇ a, Lc ₇ b… Diverted flow of blended liquid, Lm ₁ a, Lm ₁ b, Lm ₈ a, Lm ₈ b, Lm ₁₆ a, Lm ₁₆ b ...
… Intensive flow, Lm ₃ a, Lm ₃ b, Lm ₁₀ a, Lm ₁₀ b, Lm ₁₈ a, Lm ₁₈ b…
… Linear collision flow, Lm ₄ , Lm ₁₁ , Lm ₁₉ … Mixed flow, Lm ₅ , Lm
m ₁₂ , Lm ₂₀ , Lm ₃₀ ... Outflow

Claims (4)

(57) [Claims] 1. A plurality of liquids are mixed in a predetermined mixing ratio,
In addition, the pressurized liquid Lc is introduced into one inflow passage 1,
The outflow from it is made to collide (Lc ₁ ) on the surface of the collision plate 2 at a required velocity and diffused (Lc ₂ ) on the surface of the collision plate 2 and then they are dipped. It is divided into two or more streams (Lc ₃ a, Lc ₃ b, ...), and they are aggregated (Lm ₁ a, Lm ₁ b, ...) and two or more bottleneck 3a, 3b,
... guided in and by concentrating the extension line of the outlet of these bottlenecks, bottlenecks 3a, 3b, ... more of the effluent stream Lm ₃ a, Lm
Mixing of liquids characterized by causing ₃ b, ... To collide with each other at a certain required speed, thereby leading mixed (Lm ₄ ) into one outflow passage 4 and ejecting (Lm ₆ ) to the outside. Eruption method. 2. A plurality of types of liquids are mixed in a predetermined mixing ratio,
Then, the pressurized liquid Lc ₄ is introduced into one inflow passage 11,
The impingement plate under the required flow velocity, which has some outflow from it
Collide on the 12th surface (Lc ₅ ), and let it collide with the collision plate 1
Diffusion (Lc ₆ ) on two surfaces, dividing into two or more flows (Lc ₇ a, Lc ₇ b,…), and consolidating each (Lm ₈ a, Lm
₈ b, ...) to two or more bottleneck 17a, 17b, ... guided in and by allowed to concentrate the extension line of the outlet of these bottlenecks,該隘path 17a, 17b, ... more effluent Lm ₁₀ a, L
m ₁₀ b, ... Collide with each other at a required speed, and the primary mixing (Lm ₁₁ ) is thereby made into one outflow passage.
Lead into 19 and make it a flow path to the next second collision plate,
The outflow Lm ₁₃ is collided on the surface of the impingement plate 22, and exactly the same action as above, that is, diffusion (Lm ₁₄ ) and split flow (Lm ₁₅ a, Lm
₁₅ b,…), aggregation (Lm ₁₆ a, Lm ₁₆ b,…), collision (Lm ₁₈ a,
Lm ₁₈ b,…) and mixing (Lm ₁₉ ) are repeated, and then they are led to one outflow passage 29 (Lm ₂₀ ), and if necessary, a third order,… A method for mixing and ejecting a liquid, characterized in that the liquid is repeatedly ejected and mixed sufficiently. 3. A plurality of types of liquids are mixed in a predetermined mixing ratio,
In addition, the pressurized liquid Lc is introduced into one inflow passage 1,
The outflow from it is made to collide (Lc ₁ ) on the surface of the collision plate 2 at a required velocity and diffused (Lc ₂ ) on the surface of the collision plate 2 and then two or Divide into more flows (Lc ₃ a, Lc ₃ b,…) and combine them (Lm ₁ a,
Lm ₁ b,…) and guide them into the two bottleneckes 3a, 3b,…, and by concentrating the extension lines of the outlets of these bottleneckes 3a, 3b,…, the bottleneck 3a, 3b,… The outflow streams Lm ₃ a, Lm ₃ b, ... Collide with each other at a certain required velocity, and thereby the mixture (Lm ₄ ) is introduced into one outflow passage 4, which is further installed in the nozzle 5. The method for mixing and ejecting liquid, characterized in that the liquid is ejected from the nozzle 5 by being guided to the ejection flow path. 4. An inflow passage 41 is provided from the upper surface of the body 40 toward the inside thereof, and the inflow passage 41 is provided inside thereof.
Is provided with a cylindrical hollow chamber H substantially at a right angle to the inside of the hollow chamber.
42 is provided, and above the collision plate 42 is the hollow chamber H.
And a space Sc that is also required around the collision plate, and these spaces are provided on the upper surface of the collision plate 42.
43, the bottom of the collision plate 42 is in contact with the bottom surface of the cavity H, and a part 48s of a small cylindrical mixing chamber 48 is provided at the center of the bottom surface of the collision plate 42. Between the part 48s of the mixing chamber and the void Sc in the periphery of the collision plate 42, two or more bottleneck 47a in a straight line or equiangularly with the center line of the mixing chamber 48 as the center. , 47b are provided, and the lower part of the mixing chamber 48 communicating with them is connected to an outflow passage 49 to the outside, a liquid mixing and jetting device.