KR101589284B1

KR101589284B1 - A Evaporation Cooling Type of Spraying Apparatus Having Nozzle Assembly Forming Hyperfine Atomized Droplet

Info

Publication number: KR101589284B1
Application number: KR1020140078418A
Authority: KR
Inventors: 이인철
Original assignee: 주식회사 에어쿨링
Priority date: 2014-06-25
Filing date: 2014-06-25
Publication date: 2016-02-12
Also published as: KR20160000771A

Abstract

[0001] The present invention relates to a spray apparatus for evaporative cooling of an ultrafine droplet forming nozzle assembly, and more particularly to a spray apparatus for atomizing liquid droplets in the form of ultrafine droplets from a nozzle assembly maintained at a high pressure to cool and purify ambient air And an evaporation cooling method spraying device of an ultra fine atomizing liquid forming nozzle assembly. Evaporative Cooling System The atomizing apparatus includes a fluid supply source (S) for supplying a fluid for droplet generation; A pressurizing unit (11) for transferring the fluid supplied to the fluid source (S); A nozzle block having at least one nozzle assembly (13a, 13b, 13c, 13d) for producing ultrafine droplet droplets having a predetermined diameter from the fluid supplied via the pressure unit (12); And a control unit 16 for controlling the pressure of the pressure unit 11. The pressure of the nozzle assemblies 13a, 13b, 13c and 13d is controlled by the pressure unit 11 to a pressure of 40 to 80 bar And the diameter of the predetermined size is 5 to 40 mu m.

Description

TECHNICAL FIELD [0001] The present invention relates to a spraying apparatus for evaporating cooling fluid of an atomizing nozzle,

[0001] The present invention relates to a spray apparatus for evaporative cooling of an ultrafine droplet forming nozzle assembly, and more particularly to a spray apparatus for atomizing liquid droplets in the form of ultrafine droplets from a nozzle assembly maintained at a high pressure to cool and purify ambient air And an evaporation cooling method spraying device of an ultra fine atomizing liquid forming nozzle assembly.

Droplets or particulate water droplets having a diameter of several tens of micrometers may be produced by nozzles having a suitable structure. Such liquid droplets can be applied to a facility or an apparatus in which a part of the liquid droplet is evaporated to cool the surrounding air, thereby requiring various types of cooling. The dust, smoke, smoke or smog corresponding to the particulate pollutants has a size of 1 to 100 mu m, 0.03 to 0.3 mu m, 0.5 to 3.0 mu m, 0.01 mu m and 1 mu m or less, respectively, Can be effectively removed. In addition, the ultrafine atomized liquid is advantageous for trapping or removing bacteria or other substances floating in the air. However, it is difficult to produce ultrafine atomized droplets having a diameter of 10 to 30 mu m, and it is not easy to uniformly form the particle size. Devices having various types of spray nozzles for cooling or air cleaning are known in the art.

International Patent Publication No. WO 2002/55208 includes a sprinkler housing having an inlet for liquid and a longitudinally extending axis, the nozzle housing opposed to the inlet being defined by a surface of the rotating body having a nozzle outlet opening arranged around the axis, And the nozzles of the sprinkler, which are ejected for liquids whose respective impact surfaces face the mouth of the exposure-exit-side opening and flow out through the nozzle-outlet-side opening, are disclosed.

Patent Publication No. 10-2010-0029164 includes a case having a plurality of spray nozzles for spraying fine water molecules, and each of the spray nozzles includes an air hose through which high pressure air moves and a water hose through which water moves, And the humidifier is provided to penetrate both sides of the case to connect the air hose and the water hose to the spray nozzles and spray water having fine particles through the spray nozzles to humidify the nozzle humidifier.

The disclosed prior art does not disclose a spray device that controls the size of droplets in the form of droplets or particulates and thus causes spraying and dust removal or sterilization at the same time as cooling and humidity control.

The present invention has been made to solve the problems of the prior art and has the following purpose.

Prior Art Document 1: International Patent Publication No. WO 2002/55208 (published by GWU Sprinkler A / S, Jul. 18, 2002) Sprinkler nozzle for spraying fine droplets of water Prior Art 2: Patent Publication No. 10-2010-0029164 (published by Civil Ace Co., Ltd. on Mar. 16, 2010) Fine water molecule nozzle humidifier

An object of the present invention is to provide an evaporative cooling method of an ultrafine droplet forming nozzle assembly that enables temperature control, humidity control, fine dust removal, and sterilization by spraying uniformly sized liquid droplets having micro- To provide a spraying device.

According to a preferred embodiment of the present invention, an evaporative cooling system atomizing apparatus of an ultrafine droplet forming nozzle assembly comprises: a fluid supply source for supplying a fluid for droplet generation; A pressurizing unit for transferring the fluid supplied to the fluid source; A nozzle block having at least one nozzle assembly for producing ultrafine droplet droplets having a predetermined diameter from the fluid supplied via the pressurizing unit; And a control unit for controlling the pressure of the pressure unit, wherein the pressure of the nozzle assembly is maintained at a pressure of 40 to 80 bar by the pressure unit, and the diameter of the predetermined size is 5 to 40 mu m.

According to another suitable embodiment of the present invention, the nozzle assembly includes a vortex formation orifice formed with at least one vortex slit (36).

According to another preferred embodiment of the present invention, the nozzle block further comprises a supply tube extending in a straight or curved shape or in a cylindrical shape, and the at least one nozzle assembly is supplied with the fluid from the supply tube.

The spraying apparatus according to the present invention is advantageous in that it is structurally simple and high in cooling efficiency for the surrounding environment. In addition, the spraying apparatus according to the present invention has an advantage that the circulation air can be cooled, humidity can be controlled, fine dust can be removed, and sterilization can be performed. In addition, the spraying apparatus according to the present invention is capable of cooling circulation air, reducing dust, controlling humidity or sterilizing, thereby making it possible to prevent the generation of various kinds of fine dusts in public places such as parks or subways, playgrounds, It can be applied to a site, a semiconductor manufacturing line, a parking lot, or a food shop.

1 is a block diagram showing an embodiment of a spraying apparatus according to the present invention.
2 shows an embodiment of a high-pressure pump which can be applied to a spraying apparatus according to the present invention.
FIGS. 3A and 3B illustrate an embodiment of a nozzle assembly that may be applied to a spray apparatus according to the present invention.
4A and 4B illustrate an embodiment of a vortex forming orifice and an opening and closing control unit that can be applied to the nozzle assembly of FIG. 3A or FIG. 3B.
Figure 5 shows an embodiment of a nozzle block which can be applied to a spraying device according to the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so that they will not be described repeatedly unless necessary for an understanding of the invention, and the known components will be briefly described or omitted. However, It should not be understood as being excluded from the embodiment of Fig.

In this specification, ultrafine atomized liquid droplets mean droplets in the form of droplets or fine particles having an average diameter of, for example, 5 to 40 μm. The ultrafine atomized liquid may have a property that a part thereof may be evaporated by the air to be small in diameter and not to be wet even when the contact is made in such a state. Especially, the ultrafine atomized liquid droplets having such properties can be dry mist. Specifically, the droplet which is sprayed so as to have a certain diameter in the air and diffuses into the air to cause the evaporative cooling phenomenon can be an ultrafine droplet. Generally, the ultrafine liquid droplets can be generated from water, but may contain some of the gas or other types of liquid components as needed.

1 is a block diagram showing an embodiment of a spraying apparatus according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a spraying apparatus according to the present invention includes a fluid source S for supplying a fluid for droplet generation; A pressurizing unit (11) for transferring the fluid supplied to the fluid source (S); A nozzle block having at least one nozzle assembly (13a, 13b, 13c, 13d) for producing ultrafine droplet droplets having a diameter of a predetermined size from the fluid supplied via the pressure unit (11); And a control unit 16 for controlling the pressure of the pressure unit 11. The pressure of the nozzle assemblies 13a, 13b, 13c and 13d is controlled by the pressure unit 11 to a pressure of 40 to 80 bar And the diameter of the predetermined size is 5 to 40 mu m.

The spraying apparatus according to the present invention can make a fluid such as water into a droplet or a particulate form to be sprayed into the air. A fluid, such as water, may be supplied from the fluid source (S). The fluid source S may be any source capable of supplying a fluid, such as, for example, a water storage tank or water connected to a water line. The atomizing apparatus according to the present invention can produce ultrafine droplets from water supplied from a water source (S). The ultrafine atomized liquid droplets can have an average diameter of 5 to 40 μm, but the diameter can be appropriately adjusted as required. The ultrafine atomized liquid sprayed into the air can flow along with the air along the spray direction and can flow to a distance of, for example, 1 to 4 m. The ultrafine droplet may be reduced in size by a factor of 1/3 to 2/3 of the initial size, for example, and the periphery may be cooled by evaporation. Bacteria or bacteria in the fine dust and air can be trapped in the ultrafine droplet. Also, for example, even after contact with the ultrafine droplet at a distance of 1 to 2 meters or more after spraying, it is not wetted. The ultrafine atomized liquid droplet may have the same or similar properties as the dry mist.

The atomizing apparatus according to the present invention can be applied for cooling, humidity control, sterilization or air purifier, but is not limited thereto.

The fluid supplied from the fluid supply source S can be transferred to the filter unit 14 via the adjustment unit 15 which can adjust the pressure or the flow rate, for example, the diaphragm valve. The fluid in the filter unit 14 can be conveyed to the nozzle block via the pressurizing unit 11 in a filtered state. The filter unit 14 may be any filter known in the art, such as a carbon filter, an activated carbon filter, or a zeolite filter, and the present invention is not limited by the type of filter.

The pressurizing unit 11 may be any pressurizing means known in the art capable of maintaining the interior of the nozzle block at a high pressure, such as, for example, a high pressure pump, a multi-stage compression pump or a high pressure oilless plunger pump. The nozzle block may include a supply conduit or feed tube 12 for transferring the fluid and at least one nozzle assembly 13a, 13b, 13c, 13d disposed in the supply tube 12. [ The pressurizing unit 11 can maintain the pressure of the nozzle block at a pressure of, for example, 40 to 80 bar in consideration of the diameter of the ultrasonic atomizing droplet sprayed from the nozzle assemblies 13a, 13b, 13c, and 13d. And ultrafine droplet droplets having a particle diameter of 5 to 40 mu m may be sprayed from each nozzle assembly 13a, 13b, 13c, 13d disposed in the supply tube 12. [ The amount to be sprayed may vary depending on the location to be installed or the pressure exerted by the pressure unit 11, for example, but not limited to, 0.02 g / s to 0.10 g / s per nozzle assembly. In addition, the injection speed of the ultrafine droplet sprayed from the nozzle assemblies 13a, 13b, 13c, and 13d may be, for example, 30 to 80 m / s.

The pressure inside the nozzle block can be maintained in a predetermined range by the pressure unit 11 and the pressure of each of the nozzle assemblies 13a, 13b, 13c, and 13d disposed in the supply tube 12 can be maintained in the same or similar range . A sensor 18 such as a pressure sensor may be installed in the supply tube 12 or the nozzle assembly 13a, 13b, 13c or 13d as required and the measured value at the sensor 18 may be supplied to the control unit 16 Lt; / RTI > The control unit 16 may adjust the pressure of the nozzle block by adjusting the flow rate of the control unit 15 or the pressure of the pressure unit 11 based on the value transmitted from the sensor 16. [

In order to prevent sudden operation of the pump or variations in the flow of the fluid due to the opening and closing of the valve in the spraying apparatus according to the present invention, a water hammer such as a flywheel, an air chamber or a safety valve or bypass line Prevention device may be installed. The pressurizing unit 11 may also be various types of high-pressure pumps known in the art capable of maintaining the interior of the nozzle block at a predetermined range of pressures.

Fig. 2 shows an embodiment of a pressurizing unit 11 which can be applied to a spraying apparatus according to the present invention.

Referring to Fig. 2, the pressure unit 11 may be, for example, an oilless high pressure pump having at least two pressure pistons 212a and 212b. The high-pressure pump may consist of a piston block 21 and a cylinder block 22. The piston block 21 includes a driving shaft 213 driven by a driving device such as a motor, a rotating gradient unit 211 rotated by the driving shaft 213, And a pair of pistons 212a and 212b. The cylinder block 22 includes a pair of cylinders 222a and 222b for inducing the movement of the pair of pistons 212a and 212b and a pair of cylinders 212a and 212b through an inflow passage 223a , 223b, and control valves 24a, 24b, such as check valves, formed in the transfer path of the fluid to supply fluid to the transfer conduit 23 while preventing backflow.

The rotary inclining unit 211 having the inclined plate structure can be rotated by the operation of the driving shaft 213 so that the pair of pistons 212a and 212b are sequentially moved in the inner side of the pair of cylinders 222a and 222b The fluid can be supplied to the transfer conduit 23 while reciprocating motion is performed. The control valves 24a and 24b can be appropriately opened and closed in accordance with the reciprocating movement of the pistons 212a and 212b and the fluid supplied through the inlet passages 223a and 223b can be opened and closed by the control valves 24a and 24b And may be supplied to the supply tube through the transfer conduit 23 in accordance with the operation. The pressurizing unit 11 having such a structure has an advantage in that the energy consumption due to the maintenance of the high pressure is reduced and the pressure applied at the same time is easily controlled.

The fluid supplied through the transfer conduit 23 may be supplied to the nozzle assembly through the supply tube and sprayed in an ultrafine droplet form.

FIGS. 3A and 3B illustrate an embodiment of a nozzle assembly that may be applied to a spray apparatus according to the present invention.

Referring to FIGS. 3A and 3B, the nozzle assembly 30 includes an inflow unit 31 for inflow of fluid; A nozzle body (32) coupled to one side of the inflow unit (31) to guide the flow of the fluid; A nozzle head (33) coupled to one side of the nozzle body (32); A vortex forming orifice 341 disposed inside the nozzle body 32 to form a swirl while guiding the fluid to the nozzle head 33; And an opening / closing control unit (342) coupled to one of the vortex forming orifices (341) and adjusting the magnitude of the pressure of the fluid flow.

The inflow unit 31 may include a supply connector 312 connected to an external fluid supply source and a body 311 connected to the nozzle body 32 while guiding the inflow fluid. The body 311 or supply connector 312 may be cylindrical in shape overall, but is not limited thereto and may have any structure known in the art.

The nozzle body 32 connected to one end of the body 311 may have a function of accommodating each device that forms a vortex while inducing the flow of the fluid. An inflow connector 322 formed above the middle body 321 and a nozzle connector 323 formed below the middle body 321. The inflow connector 322 and the nozzle connector 323 ).

The inlet connector 322 can move a fluid, such as water, that is conveyed from the inlet unit 31 to the vortex formation orifice 341 while being coupled with the inlet unit 31 in a manner such as, for example, a screw connection. The filter unit 37 may be disposed at a portion where the inlet connector 321 and the inlet unit 31 are coupled. However, the filter unit 37 can be disposed at various positions and is not necessarily installed.

3B, an inflow channel may be formed inside the inflow connector 321, and the inflow channel may be opened and closed by the open / close control unit 342. [ When the pressure exceeds a certain level, the upper portion of the opening / closing control unit 342 moves downward, thereby opening the inflow passage. When the pressure again decreases, the opening / closing control unit 342 is moved upward, Can be blocked. Closing of the inflow passage by the opening / closing control unit 342 can be performed in various ways, and the present invention is not limited to the embodiments shown.

The vortex forming orifice 341 and the opening and closing control unit 342 may be disposed inside the nozzle body 32. The opening / closing control unit 342 is disposed above the vortex forming orifice 341 and can control the transfer of the fluid to the vortex forming orifice 341 by opening and closing the inflow passage. If necessary, the opening / closing control unit 342 may have a structure for determining the opening / closing level of the inflow passage. Specifically, the opening / closing control unit 342 may be installed so as to move in proportion to the applied pressure or to be moved by an appropriate adjusting means. The opening / closing control unit 342 can be formed in a structure in which the degree of opening of the inflow passage is determined according to the degree of movement of the opening / closing control unit 342.

The fluid that is transferred to the vortex formation orifice 341 by the adjustment of the opening and closing control unit 342 passes through the opening and closing control unit 342 having the coil spring structure and the vortex formation orifice 341 to form a swirl or swirl . And the fluid forming the stream in the form of a spiral can be transferred to the nozzle head 33.

The nozzle head 33 may include an engaging body 331 coupled to the nozzle connector 323 and a nozzle tip 332 through which the fluid is injected. The nozzle tip 332 may be provided with a vortex forming orifice 341 or a spray hole 133 connected to the internal flow path of the nozzle connector 123. [ The fluid forming the vortex-like stream as it flows along the vortex forming orifices 341 may be sprayed into the air through the spray holes 333 in the form of particulates or droplets.

The lower portion of the vortex forming orifice 341 is in contact with the inner inner surface of the nozzle tip 332 of the nozzle head 33. The nozzle tip 332 may be independently manufactured from materials such as, for example, ceramic, stainless steel, brass, and mounted in the interior of the coupling body 131 in an indentation manner. And the end of the vortex forming orifice 341 may be in contact with the inner surface of the nozzle tip 332 with elasticity. The fluid may flow into the spray hole 333 through the vortex slit described below formed in the nozzle tip 332. [ A sealing ring (not shown) may be formed on the inner circumferential surface of the nozzle tip 332 as necessary. Thus, the fluid can be formed into a vortex shape through the nozzle tip having the vortex slit formed therein and sprayed into the air in the form of a droplet through the spray hole 333 in the nozzle head 32.

The inflow unit 31, the nozzle body 32 or the nozzle head 33 can be coupled to each other in a detachable structure and coupled to each other in a coupling manner, for example, a screw coupling manner. A variety of paths for guiding the flow of fluid into the inlet unit 31, the nozzle body 32 or the nozzle head 33 may be formed and may be formed, for example, through the opening / closing control unit 342 or the vortex forming orifice 341 may be received in the nozzle body 32 or the nozzle head 33. [

The internal flow path or the mutual coupling for fluid flow can be made in various ways, and the present invention is not limited to the embodiments shown.

The supply of the fluid to the nozzle head 33 in the nozzle assembly 30 can be controlled in accordance with the pressure applied to the nozzle assembly 30 and the supplied fluid is swirled or vortexed by the vortex formation orifice 314, And can be sprayed into the air as ultra-fine droplets through the holes.

4A and 4B illustrate an embodiment of a vortex forming orifice and an opening and closing control unit that can be applied to the nozzle assembly of FIG. 3A or FIG. 3B.

4A, the vortex-forming orifice 341 is formed in a cylindrical shape and includes a coupling tab 43 to which one end of the opening / closing control unit can be coupled, a cylindrical orifice body 42 having a larger diameter than the coupling tab, An induction body 44 having a smaller diameter than the orifice body 42, a connecting body having a shape in which the diameter gradually decreases from the induction body 44, and a vortex formation And a tip 45.

The fluid that has flowed into the nozzle body can be introduced into the vortex forming office 341 by the opening / closing control unit. The fluid may be delivered to the vortex forming tip 45 through the orifice body 42, the induction body 44, and the connecting body via the outside of the coupling tab 43. The fluid can form a swirl-like flow as it flows through the orifice body 42, the induction body 44 and the connecting body having different diameters. And can be discharged and formed into a spray hole while forming a vortex in the vortex forming tip 45. Referring to FIG. 4A, a vortex slit 46 may be formed in the cylindrical vortex forming tip 45. The vortex slit 46 may be formed at the end portion of the vortex forming tip 45 and at least one may be formed in the shape of a straight slit in a straight line on the peripheral surface. The width of the swirl slit 46 may be, for example, 0.04 to 1.0 mm, and the swirl slit 46 may have a structure in which the depth becomes narrower from the periphery toward the center. The inclination of the depth formed at such different depths may be, for example, 10 to 70 degrees, but is not limited thereto. The number of the vortex slits 46 may be plural, and the extension length may be 1/3 to 4/5 of the radius length of the vortex forming tip 45, for example. In the above structure, the fluid can be guided into the spray hole while flowing inward along the swirl slit 46 inclined from the circumferential surface of the vortex forming tip 46.

A vortex forming tip 45 or vortex slit 46 having various structures can be applied to the nozzle assembly according to the present invention and the present invention is not limited to the embodiments shown.

As described above, the opening / closing control unit can be fixed to the engagement tab 43.

Referring to FIG. The opening and closing control unit 342 may include an elastic spring 48 having one end coupled to the coupling tab formed in the vortexing orifice 341 and a shielding block 49 coupled to the end of the elastic spring 48. The resilient spring 48 may be, for example, a coil spring and the spring constant may be determined in view of the pressure acting on the nozzle assembly. The shielding block 49 may be fixed to the other end of the elastic spring 48 and the shielding block may have a shape corresponding to the outlet of the inflow passage formed in the nozzle body described above.

When fluid enters the interior of the nozzle assembly, pressure may be applied to the interior of the nozzle assembly by a pressure means, such as a pressure pump. As a result, pressure is applied to the shield block 49 and the elastic spring 48 is contracted, so that the outlet of the inflow passage can be opened. When the fluid is filled in the lower part, the shield block 49 blocks the outlet of the inflow channel. The opening and closing control unit 342 can control the opening and closing of the inflow passage according to the applied pressure or the internal pressure of the nozzle assembly. Can be adjusted. The structure of the vortex formed by the pressure inside the nozzle assembly or the diameter of the droplets or fine particles injected through the spray holes can be adjusted. The pressure range for the operation of the opening and closing regulating means 342 can be determined by the elastic modulus of the elastic spring 48 and the diameter of the droplet can be adjusted by appropriately selecting the elastic modulus. Alternatively, the shielding block 49 can be made, for example, in a conical shape and the flow rate supplied to the nozzle head according to the applied pressure can be properly adjusted. As described above, the nozzle assembly according to the present invention can adjust the diameter of the droplet by appropriately selecting the operating pressure of the opening / closing control unit 342 and controlling the pressure applied to the inside of the nozzle assembly, It can be made automatically by pressure.

The opening / closing control unit 342 can be made in various structures, and the present invention is not limited to the embodiments shown.

A plurality of nozzle assemblies are disposed in the nozzle block to atomize the ultrafine droplet droplets into the air for cooling in a certain region.

Figure 5 shows an embodiment of a nozzle block which can be applied to a spraying device according to the invention.

5, the spray block may consist of a feed conduit 51 connected to the pressurization unit and a feed tubing 52, 54 connected to the feed conduit 51. The transfer conduit 51 may have a structure such as, for example, a pole or a strut, and may have a suitable internal structure for the supply of fluid. Feed tubes 52 and 54 may be disposed at appropriate positions of the feed conduit 51 and the feed tube 52 may be, for example, straight, curved or annular. The transfer conduit 51 and the supply tubes 52 and 54 may be connected to allow fluid transfer and the nozzle assembly 40 may be disposed in an appropriate number in the supply tubes 52 and 54.

5 (a), the feed tube 52 may be semicircular in shape and the feed conduit 51 may be connected to a central portion of the feed tube 52. As shown in FIG. A sensor 53 such as a pressure sensor may be installed on one side of the supply tube 52 as required. Referring to FIG. 5 (B), the supply tube 52 may be a meandering structure, and referring to FIG. 5, the supply tube 54 may be formed into a cylindrical shape or an annular shape. The fluid supplied through the respective supply tubes 52 and 54 can be sprayed into the air in the form of ultrafine droplet or dry mist (DM) through the nozzle assembly 40 to cool the ambient air.

A nozzle assembly having various structures can be applied to the spraying apparatus according to the present invention, and the present invention is not limited to the embodiments shown.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention . The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

11: pressure unit 12: supply tube
13a, 13b, 13c, 13d: nozzle assembly 14: filter unit
15: control unit 16: control unit
18: sensor 21: piston block
22: cylinder block 30: nozzle assembly
31: inflow unit 32: nozzle body
33: nozzle head 37: filter unit
36: Vortex slit 42, 48: Elastic spring
49: shielding block 51: transfer conduit
52, 54: Feed tube
332: nozzle tip 341: vortex forming orifice
342: opening / closing control unit

Claims

A fluid supply source (S) for supplying a fluid for generating droplets;
A pressurizing unit (11) for transferring the fluid supplied to the fluid source (S);
A nozzle block having at least one nozzle assembly (13a, 13b, 13c, 13d) for producing an ultrafine droplet having a diameter of a predetermined size from the fluid supplied via the pressure unit (11);
A vortex forming orifice (341) formed with at least one vortex slit (36) formed in the nozzle assembly (13a, 13b, 13c, 13d);
A nozzle head 33 including a nozzle tip 332 through which a vortex formed from the vortex forming orifice 341 is delivered and the fluid is injected; And
And a control unit (16) for controlling the pressure of the pressure unit (11)
The nozzle tip 332 is press-fitted with a ceramic, stainless steel or brass material so that the end of the vortex forming orifice 341 contacts the inner surface of the nozzle tip 332 with elasticity,
The pressure of the nozzle assemblies (13a, 13b, 13c, 13d) is maintained at a pressure of 40 to 80 bar by the pressurizing unit (11), and the diameter of the predetermined size is 5 to 40 占 퐉. Evaporative Cooling Type Spray Unit of Nozzle Assembly for Arrangement.

delete

The pressurizing unit (11) according to claim 1, wherein the pressurizing unit (11) includes a drive shaft (213) driven by a drive device, a rotary inclining unit (211) A piston block 21 made up of a pair of pistons 212a and 212b; A pair of cylinders 222a and 222b for inducing the movement of the pair of pistons 212a and 212b, inflow passages 223a and 223b for respectively introducing the fluid into the pair of cylinders 212a and 212b, And a cylinder block (22) formed of a control valve (24a, 24b) formed in the transfer path for supplying a fluid while preventing a backward flow, characterized in that the oil mist high pressure pump Cooling system Spray system.