KR102439358B1 - Ultra Fine Water Drop Generator - Google Patents

Abstract

The present invention relates to a fine water droplet generator which comprises a main body (700) of a rectangular box shape, a driving unit (500), a fluid circulation passage (205), a fine bubble generating unit (100), a cylinder block (200), and a fine water droplet supply unit (300). The fine water droplet generator of the present invention can solve the lifetime shortening of OH radicals by generating fine water droplets in such a way that ultra-fine bubbles, which generate OH radicals when broken, are trapped in the fine water droplets.

Description

Fine Water Drop Generator {Ultra Fine Water Drop Generator}

The present invention relates to a device for generating fine water droplets, and to be described in more detail, the fluid transport unit includes a crankshaft that rotates by external power, a connecting rod that is coupled to the crankshaft to convert a rotational motion into a linear motion, and a connecting rod. It is composed of a piston that is coupled to transfer the fluid in a reciprocating motion. The fluid and air introduced into the inlet through the reciprocating motion of the piston are transferred to the venturi and the mixing section, and the microbubbles generated in the collision dispersing section are transferred to the microdroplet generating section, stirred and compressed with air and high pressure, and trapped in the microbubbles. It relates to a fine water droplet generating device that maintains and transports, supplies, and sprays, a venturi and mixing unit of the fine bubble generating unit, a perforated plate-type collision dispersing unit, a fine bubble water supply unit and a fine water droplet generating unit of the fine water droplet supply unit, a pressure control pressurization tank, and a constant discharge A micro-droplet generating device consisting of a pressure control valve and a pressure control system to maintain the pressure; In this regard, the microbubble water is transferred to the fine droplet generating unit composed of the high pressure injection nozzle and the pressure adjusting valve of the pressurized filtered air layer. fine droplet generator; The micro-droplet generating device configured in such a process relates to a micro-droplet generating device for supplying and spraying the micro-droplets through an outlet after confining the micro-bubbles in the micro-droplets.

In general, in the prior art, the micro-bubble generator uses a swirl flow method, an ejector method, a high-speed cyclone method, etc., but the applied technology applies a venturi and a mixing part and a perforated collision dispersing part to the inlet part, and the fine droplet generator is Korea Energy Electrostatic spraying method developed as a new technology by Dr. Choi, Jong-Won of Research Institute; When spraying, by supplying positive (+) and negative (-) high voltage to the liquid passing through the nozzle, the ions in the liquid move to the surface and are transformed into minute droplets (water droplets) with a size of several tens of micrometers. The Korea Energy Research Institute has successfully completed the empirical study as it has excellent performance such as deodorization, sterilization, disinfection, and removal of fine dust using OH radicals generated by .

The micro-droplet generator is a technology that confines micro-bubbles generated by mixing fluid and air or optionally a chemical solution in micro-droplets to maintain the performance of micro-bubbles and supplies them. The microbubbles generated in the configured microbubble generating unit are transferred to the fine droplet generating unit composed of the high pressure injection nozzle and the pressurized filtered air layer. The micro-droplet generating device, which consists of a process of It is mainly used to promote crop growth by controlling or supplying humidity, increasing yield, sterilizing and disinfecting aquatic products, promoting growth, washing, maintaining food freshness, supplying livestock water, and preventing diseases through sterilization, sterilization, disinfection, and soil purification. The micro-droplet generator 1000 that traps micro-bubbles in water droplets, in addition to spraying and supplying micro-droplets, requires high-pressure micro-droplets in construction and construction sites, car washes, industrial sites, agriculture, livestock, fisheries, water supply, and sewage. As the usage is gradually increasing in fields, industrial fields, and living environment fields, various functions of the micro-droplet generator for trapping micro-bubbles are required. In general, the conventional technology used a pressurization method and a swirling flow mix ejector method to generate microbubbles, and the electrostatic spray method of Dr. By supplying positive (+) and negative (-) high voltage, ions in the liquid move to the surface and are converted into minute water droplets with a size of several tens of micrometers. Ultra-fine water droplets with the size of ㎛ (micrometer, one-thousandth of a millimeter)・nm (nanometer, one-millionth of a millimeter) made using the electrostatic spraying technology of Professor Seung-Seop Lee and Ji-Hoon Jung of the Department of Mechanical Engineering, KAIST It contains OH radicals. OH radicals have the second strongest ability to sterilize and disinfect bacteria and viruses after fluorine and are superior to ozone and chlorine, but unlike these substances, they are non-toxic and harmless to the human body. However, since the holding power of microbubbles of the aforementioned technology is not long, the technology of the present invention solves the problem of shortening the lifespan in air by confining OH radicals in water droplets.

The electrostatic spraying method of Panasonic of Japan, which condenses moisture in the air onto a cold metal tip, and electrostatically sprays it, is recognized as the world's best technology and has been developed. OH radical generated by new technology and microbubbles: It is involved in the sterilization and disinfection of almost all contaminants, and it is a substance that is harmless to the human body while exhibiting the strongest effect that can be chemically decomposed and removed. Among the existing substances, the oxidizing power (ability to sterilize, disinfect, and decompose) OH radicals is the second most powerful after fluorine (F) and stronger than ozone and chlorine, but it is not as toxic or harmful to the human body as fluorine, chlorine and ozone.

Won Byeong-muk, Department of Materials Science and Engineering, Sungkyunkwan University The internal pressure of water droplets is lower than atmospheric pressure, making it difficult for water vapor to escape into the air, which significantly slows the evaporation rate; The internal pressure of the microdroplet was 0.6 atm, which was lower than atmospheric pressure (1 atm); Research results have been published that are interpreted as being able to trap microbubbles in microdroplets.

The technology of the present invention uses a physical method to confine microbubbles using natural air in microdroplets to maintain the performance of microbubbles, and the microdroplet generator to which a technology is applied to maximize efficiency is an inlet, venturi, mixing The microbubble water generated in the microbubble generating unit composed of the sub and perforated plate-type collision dispersing unit is transferred to the fine water droplet generating unit composed of the high pressure injection nozzle and the pressurized filtered air layer. Causes cavitation, micro-bubbles confinement in the micro-droplets to generate micro-droplets, which includes the generation of micro-droplets; As shown in Figure (2), the micro-droplet generator 1000 confines micro-bubbles in micro-droplets and then compresses them at high pressure to supply or spray micro-droplets. When the crankshaft 503 is rotated with a separate power source (not shown) connected to 503), the rotational motion of the connecting rod 502 is changed to a linear motion, and the piston 501 is moved within the piston cylinder 202 by the piston operation. Microbubbles including the venturi 102, the collision plate distribution unit 104, and the mixing unit 101 coupled to the inlet 103 by the suction force generated by the reciprocating motion of the piston 501 The generating unit 100 generates microbubbles, and when suctioned into the piston cylinder 202 and discharged, the microbubble water compressed at high pressure is pressure-controlled by the pressure-controlled pressurizing tank 302 to maintain a constant pressure, fine droplet generating unit The ultra-fine bubble water generated by the operation of the internal pressurized filtered air layer 303b and the high-pressure injection nozzle unit 303a of 303 is compressed, and fine water droplets confining the microbubbles are generated and then transported, supplied, and sprayed. ; It relates to a device for generating fine droplets.

Republic of Korea Patent Registration No. 10-2051709 Republic of Korea Patent No. 10-1141555

The present invention has been devised to solve the problems of the prior art, and an object of the present invention is to configure a micro-bubble generating device as a main body driving unit, micro-bubble generating unit, cylinder block, micro-bubble water supply, micro-bubble generating unit, outlet to sequentially flow the inflowing fluid and air. ㎛ (micrometer / 1,000th of a micrometer) made with ultra-fine droplet generation technology and technology using electrostatic spray technology developed as a new technology in the past to create micro-droplets OH radicals are contained in ultra-fine water droplets with a size of 1 mm)·nm (nanometer, 1 millionth of a mm). OH radical has the second strongest ability to sterilize and disinfect bacteria and viruses after fluorine and is superior to ozone and chlorine, but unlike these substances, it is not toxic and harmless to the human body. However, the new technology developed by focusing on the fact that the lifespan of OH radicals contained in the ultra-fine droplets of the above-mentioned technology is not long is confinement of the ultra-fine bubbles that generate OH radicals in the micro-droplets when the ultra-fine bubbles collapse. An object of the present invention is to provide a micro-droplet generating device in order to solve the problem of shortening the lifespan by generating OH radicals when the micro-droplets collapse in the air during spraying by generating micro-droplets by this method.

Accordingly, the present invention is a technology for confining microbubbles in microdroplets as described above, and the microdroplet generating unit was invented to improve the performance efficiency of microbubbles. , the body 700 formed in the shape of a rectangular box; A crankshaft 503 connected to external power is installed in the inside thereof in the horizontal direction, and the piston 501 (501a, 501b) coupled to the crankshaft 503 through the connecting rods 502 (502a, 502b, 502c). , 501c) is coupled to the piston 501 by external power driving unit 500 configured to reciprocate (501a, 501b, 501c); and a piston cylinder 202 (202a, 202b, 202c) installed in front of the main body 700, so that the pistons 501 (501a, 501b, 501c) can reciprocate, are installed side by side in the horizontal direction, The discharge check valve 203 (203a, 203b, 203c) is installed so as to correspond to the upper part of the piston cylinder 202 (202a, 202b, 202c), and the piston cylinder 202 installed in front of the cylinder block 200 ( Suction check valves 204 (204a, 204b, 204c) are further installed to correspond to 202a, 202b, 202c), and the mixed fluid flows into the cylinder block 200 to cool the cylinder housing and the piston, and create a water film a cylinder block 200 that does not require a separate lubricating device by remarkably reducing friction; A collision plate distribution unit 104 in the form of a perforated plate to be stirred and dispersed with fluid and air, a mixing unit 101 formed in a funnel shape installed in front of the cylinder block 200, fluid and air are introduced from the outside and can be stirred The venturi 102 is installed in the center so that the microbubble generating unit 100 including the inlet 103 and; It is formed in the form of a block installed on the upper side of the cylinder block 200, and a discharge check valve 203 (203a, 203b, 203c) is installed to correspond to each piston cylinder 202 (202a, 202b, 202c), The fine water droplet generating unit 303 and the fine water droplets composed of the pressurized filtered air layer 303b, the high pressure injection nozzle unit 303a, and the pressure adjusting valve 303c so that the mixed fluid introduced from the fine bubble water supply unit 301 generates fine water droplets. It is formed with a pressure controllable fine water droplet outlet 305 configured to be transported, and a pressure control pressure tank 302 and a pressure control system 304 for controlling the discharge pressure at the top of the fine bubble water supply unit 301 . A fine droplet supply unit 300 is formed; It has an approximate configuration so that the introduced fluid and air can be generated and sent out as fine water droplets.

As described above, in the present invention, the fine droplet generating device includes a perforated plate-shaped collision dispersing unit to be stirred and dispersed with fluid and air, a funnel-shaped mixing unit installed in front of the cylinder block, and fluid and air introduced from the outside to be stirred A venturi is installed at the center of the inlet and the mixing unit so as to be able to, and a microbubble generating unit including an inlet installed in front of the venturi; The composition of the micro-droplet generating unit that traps the micro-bubbles generated in the micro-droplets is a high-pressure jet nozzle and a pressure adjusting valve for the pressurized filtered air layer. As a device, the high-pressure injection nozzle unit and the pressure control valve installed to maintain a constant pressure of the pressurized filtered air layer and the pressure control of the pressure control tank are operated, thereby improving the efficiency of confining the micro-bubbles in the micro-droplets; can not only increase the generation and performance efficiency of microbubbles, but also maintain the performance of microbubbles when supplying and spraying microdroplets.

1 is an assembly view showing an apparatus for generating fine water droplets according to an embodiment of the present invention.
FIG. 2 is an exploded view showing the device for generating fine water droplets of FIG. 1 .
Figure 3 is a configuration diagram of the fine droplet generating device parts of Figure 1;
Figure 4 is a perspective view of the micro-droplet generating device of Figure 1;

The present invention relates to a device for generating fine droplets, and in more detail, a driving unit; is composed of a crankshaft that rotates by external power, a connecting rod that is coupled to the crankshaft to convert rotational motion into linear motion and transmits it, and a piston that is coupled to the connecting rod and transfers fluid in reciprocating motion. cylinder block; The fluid introduced into the inlet through the piston reciprocating motion of the venturi and the mixing unit, the micro-bubble generating unit consisting of a collision dispersing unit; In a state in which the microbubbles are generated, the microbubbles are transferred to the microdroplet generating unit, and the microbubble water is stirred and compressed with air and high pressure to trap the microbubbles in the microdroplets to maintain the performance of the microbubbles and transport and supply the microbubble supply unit 300; It relates to a device for generating fine water droplets comprising At the same time, a lubricating device and lubricating oil are not required by reducing friction with the piston by forming a water film on the inner wall of the piston cylinder 202 at the same time. An exemplary embodiment of the present invention will be described with reference to the drawings. Figure 1 shows a fine droplet generating device of the present invention, Figure 2 shows an exploded view of the fine droplet generating device of the present invention, Figure 3 is a diagram showing the configuration of auxiliary parts of the fine droplet generating device of the present invention, Fig. 4 is a perspective view of the micro-droplet generating device of the present invention, as shown, the present invention is largely divided into five fields: the micro-bubble generator 100, the cylinder block 200, the micro-droplet supply unit 300, It is composed of a driving unit 500 and a body 700 . A venturi 102 that is installed at the rear end of the inlet 103 and the inlet where the mixing unit 101 is formed so that the introduced fluid can be mixed with air and causes agitation of the fluid and air, and a perforated collision plate that causes dispersion of the mixed fluid a microbubble generating unit 100 composed of a unit 104; A piston 501 (501a, 501b, 501c), a connecting rod 502 (502a, 502b, 502c), and a crankshaft 503, which are sucked and discharged by a forward and backward reciprocating motion in the piston cylinder 202. 500); a body 700 with a built-in; and a piston cylinder 202 installed on the front side of the body 700, in which a piston cylinder 202 (202a, 202b, 202c) and a fluid circulation path 205 are formed ( 202a, 202b, 202c) and the piston cylinder 202 (202a, 202b, 202c) on the front side of the suction check valve 204 (204a, 204b, 204c) causing vibration by an elastic spring is installed in a built-in form, , The discharge check valve 203 having an elastic body on the upper side (203a, 203b, 203c) is installed in the form of a built-in cylinder block 200; It is formed in the form of a block installed on the upper side of the cylinder block 200, and a discharge check valve 203 (203a, 203b, 203c) is installed to correspond to each piston cylinder 202 (202a, 202b, 202c), The fine water droplet generating unit 303 and the fine water droplets composed of the pressurized filtered air layer 303b, the high pressure injection nozzle unit 303a, and the pressure adjusting valve 303c so that the mixed fluid introduced from the fine bubble water supply unit 301 generates fine water droplets. It is formed with a pressure controllable fine water droplet outlet 305 configured to be transported, and a pressure control pressure tank 302 and a pressure control system 304 for controlling the discharge pressure at the upper end of the fine bubble water supply unit 301 . A fine droplet supply unit 300 is formed; It has an approximate configuration so that the introduced fluid and air can be generated and sent out as fine water droplets.

First, the driving unit main body 700 of the device for generating fine water droplets of the present invention; Looking at the configuration of , the outer shape is formed in a rectangular box shape, the crankshaft 503 is installed in the horizontal direction inside, and the pistons 501 (501) (501a, 501b, 501c) are fastened to the crankshaft 503. When the connecting rods 502 (502a, 502b, 502c) are installed and the crankshaft 503 is rotated by external power, the connecting rods 502 (502a, 502b, 502c) coupled thereto and the connected piston 501 are connected. (501a, 501b, 501c) is operated in the form of reciprocating movement in the form of forward and backward in the horizontal direction. In the present invention, the driving unit 500; 3 connecting rods 502 (502a, 502b, 502c) and pistons 501 (501a, 501b, 501c) reciprocating inside the cylinder are connected to the crankshaft 503, respectively, and describe that they are connected and operated, It is revealed that it is within the scope of the present invention even if it is modified by adding or subtracting the number of operations of the piston as necessary. On the other hand, the pipe installed at the rear end of the inlet 103 and the inlet in which the mixing unit 101 is formed so that the introduced fluid installed on the front side of the main body 700 can be mixed with air and connected to a cone causing agitation of the fluid and air A venturi (102) including a pipe-shaped air supply port (102a) through which air passes through a structure in which air is sucked when the fluid is moved inside the shape, and a stirring unit (102c) so that the fluid and air are stirred in the pipe-shaped interior (102) , a microbubble generating unit 100 consisting of a perforated collision plate dispersing unit 104 causing dispersion of the mixed fluid; Looking at the configuration of the cylinder block 200 constituting the rear end of the three piston cylinders 202 (202a, 202a, 202b and 202c) are installed horizontally. A fluid circulation path 205 is provided so that the mixed fluid flows into the three piston cylinders 202 (202a, 202b, 202c). The fluid flowing in through the inlet 103 is composed of a venturi 102 that stirs and mixes the fluid and air configured in the inlet, a mixing unit 101 that stirs the mixed fluid, and a collision plate distribution unit 104 that mixes and separates the collision. By allowing the microbubble generating unit 100 and the piston cylinder 202 (202a, 202b, 202c) formed in the cylinder block 200 to flow into the inside as well as the fluid circulation path 205 formed separately therein, the piston 501 (501a) , 501b, 501c) are configured to cool and lubricate. Looking at the configuration of the mixing unit 101 installed on the front side of the cylinder block 200, it is formed in a wide funnel shape in the horizontal direction to cover the front of the piston cylinder block 202, and the inlet 103 is located in the center It is provided so that when the fluid is introduced from the outside, the air passes through the agitation part 102c flow path of the venturi 102 to the air supply port 102a to be stirred and mixed in, and between the piston cylinder 202 and the inlet 103. There is a venturi 102, a mixing unit 101, and a micro-bubble generating unit 100 including a collision plate distribution unit 104 built-in, and an elastic body to correspond to the piston cylinder 202 (202a, 202b, 202c). The suction check valve 204 (204a, 204b, 204c) to which the spring is fastened having a configuration in which it is built-in. When the fluid in which the fluid and air are mixed is supplied to the mixing unit 101 configured as described above through a fluid inlet means constituting the separate venturi 102, for example, a pump (not shown), the inside of the inlet 103 is is supplied to the piston cylinder 202 (202a, 202b, 202c), and at this time is configured to be supplied only in one direction by the suction check valve 204 (204a, 204b, 204c). Looking at the configuration of the fine water droplet supply unit 300 installed on the upper side of the cylinder block 200, it is coupled to the upper side of the cylinder block 200 in a block form, between the cylinder block 200 and the fine water droplet supply unit 300 Discharge check valves 203 (203a, 203b, 203c) are installed to correspond to each of the piston cylinders 202 (202a, 202b, 202c). In addition, the high-pressure injection nozzle part 303a, the pressurized filtered air layer 303b, the pressure adjusting valve 303c, the outlet port ( 305) is formed, the fine droplet supply unit 300 includes a pressure control pressure tank 302 that maintains a normal constant discharge pressure and a pressure control system 304 that controls a constant discharge pressure. ) is formed, and when the pressure rises above the normal pressure, it is discharged through the fine droplet conveying port 303d and introduced into the mixing unit 101, and has a rough configuration composed of a pressure adjusting valve 303c that automatically controls the pressure. Looking at the assembly process of the present invention configured as described above, first, the crankshaft 503 is horizontally installed into the body 700 including the driving unit 500, and the installed crankshaft 503 has three pistons. (501) (501a, 501b, 501c) is coupled to the connecting rod (502) (502a, 502b, 502c). Thereafter, the cylinder block 200 is installed on the front side of the body 700, but the piston 501 (501a, 501b, 501c) can reciprocate inside the piston cylinder 202 (202a, 202b, 202c). Suction check valves 204 (204a, 204b, 204c) and discharge check valves 203 (203a, 203b, 203c) are installed on the front and upper sides of each piston cylinder 202 (202a, 202b, 202c). Install each so that the inflowing mixed fluid flows in from the front and only flows upward. Then, to the front side of the cylinder block 200, the inlet 103 is coupled through a bolt, and to the upper side of the cylinder block 200, a pressure control pressure tank 302, a pressure control system 304, a fine water droplet generating unit The assembly of the present invention is completed by coupling 303 through bolts. The fine droplet generating unit 303 has a circular structure and includes a high-pressure injection nozzle unit 303a and a pressurized filtered air layer 303b on the inside, and is coupled to the pressure control valve 303c and the pressure control valve at the top of the outside. A fine droplet conveying port 303d configured to automatically adjust the pressure is configured, and in the lower portion of the fine droplet generating unit 303, the fine bubble water inlet 303e and the fine water droplet generating unit confine the microbubbles in the fine water droplets. It is completed with a fine water droplet generating unit 303 composed of an outlet 305 for discharging water droplets. Looking at the installation and operation process of the present invention assembled as described above, first, a separate pulley 504a is installed on the drive shaft 504 of the crankshaft 503 of the present invention, and the pulley 504a and external power are applied. After connecting with a belt or the like, when the crankshaft 503 is rotated, the pistons 501 (501a, 501b, 501c) connected to the crankshaft 503 and the connecting rods 502 (502a, 502b, 502c) reciprocate. will do At the same time, when the fluid is supplied through the inlet 103 formed in the mixing unit 101, the venturi 102 agitates the fluid and air, and the collision plate distribution unit 104 that separates the stirred and mixed fluid by collision mixing and suction check The mixed fluid is supplied to the inside of the piston cylinder 202 (202a, 202b, 202c) through the valves 204 (204a, 204b, 204c), and the mixed fluid is supplied to the fluid circulation path 205 inside the cylinder. . The mixed fluid supplied into the piston cylinder 202 (202a, 202b, 202c) is compressed by the piston 501 (501a, 501b, 501c), and the discharge check valve 203 (203a, 203b, 203c) The high-pressure injection nozzle part 303a, the pressurized filtered air layer 303b, the pressure adjusting valve 303c, and the fine water droplets so that the mixed fluid introduced in the forward direction formed in the outlet 305 through A transfer port 303d, a fine bubble water inlet 303e, and a fine droplet generating unit 303 including an outlet 305 are formed, and a normal constant discharge pressure is applied to the upper end of the fine bubble water supply unit 301. It is composed of a pressure control pressure tank 302 to maintain, a pressure control system 304 for controlling a certain discharge pressure, a fine water droplet generating unit 303, and a fine water droplet outlet 305 for controlling the pressure. It has a rough configuration so that it can be produced as a fine droplet and can be sprayed.

<Explanation of symbols for main parts of the drawing>
1000 fine droplet generator
100 microbubble generator
101 blend
102 Venturi
102a air supply port
102b chemical supply port
102c agitator
103 inlet
104 Collision plate distribution unit
105 air supply
200 cylinder block
202 piston cylinder
203 discharge check valve
204 Suction Check Valve
205 Fluid Circulation Furnace
300 fine droplet supply
301 microbubble water supply unit
302 pressure control tank
303 Fine droplet generator
303a high pressure injection nozzle part
303b pressurized filtered air layer
303c pressure control valve
303d fine droplet return port
303e microbubble water inlet
304 pressure control system
305 outlet
500 drive
501 piston
502 connecting rod
503 crankshaft
504 drive shaft
504a pulley
700 body
701 drive housing
702 drive unit housing cover
703 bearing housing

Claims (13)

a body 700 formed in a rectangular box shape; A crankshaft 503 rotating by external power is installed in the inside thereof in the horizontal direction, and a connecting rod 502 that is coupled to the crankshaft 503 and transmits rotational motion into a linear motion is coupled to the connecting rod. a driving unit 500 composed of a piston 501 for transferring the fluid in a reciprocating motion; It is installed in front of the body 700, the piston cylinder 202 is installed side by side in the horizontal direction so that the piston 501 can reciprocate, the cylinder block 200, and the fluid installed in front of the cylinder block 200 A venturi having a perforated plate-shaped collision plate dispersing part 104 for stirring and mixing air, a mixing part 101 formed in a funnel shape, and a stirring part 102c in the center so that fluid and air are introduced and mixed from the outside. Consisting of (102), and the microbubble generating unit 100 including the inlet 103; Corresponding to the piston cylinder 202, the suction check valve 204 on the front side configured to supply the microbubble water in one direction, the discharge check valve 203 and the piston 501 are installed on the upper side, and the microbubble generating unit 100 Cylinder block 200 configured to transport the microbubbles generated in the high pressure; The micro-bubble water supply unit 301 installed on the upper end of the cylinder block 200 and supplying the micro-bubble water high-pressure transported by the piston 501 to the micro-bubble generating unit 303, the cylindrical structure of the micro-bubble generating unit 303 inside When the high-pressure injection nozzle of the high-pressure injection nozzle unit 303a installed on the A pressure controllable micro-droplet outlet 305 configured so that water droplets can be supplied in a state in which micro-bubbles are confined, a pressure adjusting valve that maintains a constant pressure to improve the micro-droplet generation efficiency, and automatically adjusts the pressure when abnormal pressure is generated ( 303c) composed of fine water droplet generating unit 303: fine bubble water supply unit 301 at the upper end of fine water droplet generating unit 303, a pressure control pressurizing tank 302 for controlling the discharge pressure and a pressure control system (304) Containing a micro-droplet supply unit 300: a micro-droplet generating device (1000). delete delete delete delete delete The method according to claim 1,
The microbubble generating unit 100 composed of the venturi 102 coupled with the inlet 103, the mixing unit 101, and the collision plate dispersing unit 104 generates microbubble water, and when the piston 501 is sucked into the cylinder block 200, by allowing it to flow into the fluid circulation path 205 as well as inside the piston cylinder 202 formed therein, thereby cooling the piston 501 and at the same time reducing friction with the piston 501 by forming a water film on the inner wall of the cylinder. No lubricating device of: micro-droplet generating device (1000). The method according to claim 1,
The cylinder block 200 is installed on the front side of the body 700, but the piston cylinder 202 installed inside the cylinder block 200 and the piston 501 are installed so that the piston 501 can reciprocate inside the piston cylinder 202. , a suction check valve 204 for causing vibration by an elastic spring on the front side of the piston cylinder 202 is installed, and a discharge check valve 203 for causing vibration by an elastic spring on the upper side of the piston cylinder 202 is installed and introduced to allow the mixed fluid to be introduced from the front and flow only in the upward direction; Fine droplet generating device (1000). delete delete delete delete delete

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