JP2009034576A - Liquid spray device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid spray device by which particle diameters in sprayed liquid are uniform and in which it is not needed to set installation positions of a liquid supply part and a negative pressure space precisely so much. <P>SOLUTION: When compressed air is jetted from a nozzle 112, the pressure of the negative pressure space part 131 is reduced because the air circulation cross-section of the negative space part 131 is made larger than that of a blowing port 112a of the nozzle 112. Then, a liquid in the liquid supply part 12 is sucked toward the negative pressure part 131 through a hole of a spray block 13 and is micronized by the air jetted from the blowing port 112a and is sprayed toward the outside. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a liquid spraying apparatus for spraying a liquid such as a deodorizing liquid.

Conventionally, as this type of liquid spraying apparatus, a liquid spraying apparatus having an air supply unit that supplies air and a liquid supply unit that supplies a liquid such as a deodorizing liquid is known. This liquid spraying apparatus ejects air from a nozzle of an air supply unit to form a negative pressure space in front of the nozzle, and a liquid outlet of the liquid supply unit is disposed in this negative pressure space. Here, when air is ejected from the nozzle, the liquid is sucked by the negative pressure in the negative pressure space, and further atomized and sprayed.
Japanese Patent Laid-Open No. 7-60166

  However, the conventional liquid spraying device has a problem that the diameter of the sprayed liquid particles varies unless the liquid outlet of the liquid supply unit is accurately arranged in the negative pressure space. Moreover, since the position where the negative pressure space is formed moves back and forth due to the jet pressure of the air supply unit, it is not easy to install the liquid outlet of the liquid supply unit at an appropriate position.

  An object of the present invention is to provide a liquid spraying device that does not require variation in the particle size of the sprayed liquid and that does not require setting the positions of the liquid supply unit and the negative pressure space so precisely. It is to provide.

  The invention of claim 1 is a liquid spraying apparatus comprising an air supply unit that ejects compressed air through a nozzle, and a liquid tank that stores liquid such as deodorant liquid and disinfectant liquid, and sprays liquid with compressed air. At least the nozzle of the air supply unit is inserted into a spray block of a porous member formed with a predetermined hole diameter, and at least a part of the spray block is immersed in the liquid in the liquid tank, and in front of the nozzle outlet. Has a structure having a negative pressure space in which the air flow cross-sectional area is larger than that of the air outlet.

  According to the first aspect of the present invention, when the compressed air is ejected from the nozzle, the negative pressure space portion is larger than the air flow sectional area of the air outlet of the nozzle. The pressure drops. As a result, the liquid impregnated in the spray block is sucked toward the negative pressure space through the hole, further atomized from the air ejected from the outlet, and sprayed to the outside. Here, the particle size of the sprayed liquid is determined by the pore size of the spray block.

  The invention of claim 2 is a liquid spraying apparatus that includes an air supply unit that ejects compressed air through a nozzle, and a liquid supply unit that supplies liquid such as a deodorizing liquid and a disinfecting liquid, At least the nozzle of the air supply unit is inserted into a spray block of a porous member formed with a predetermined hole diameter, and the downstream side of the liquid supply unit is connected to the spray block, and in front of the nozzle outlet The air flow cross-sectional area is a structure having a negative pressure space portion larger than that of the air outlet.

  According to the invention of claim 2, when the compressed air is ejected from the nozzle, the negative pressure space portion is larger than the air flow sectional area of the nozzle outlet, so the negative pressure space portion The pressure drops. As a result, the liquid in the liquid supply part is sucked toward the negative pressure space part through the hole of the spray block, further atomized from the air ejected from the outlet, and sprayed to the outside. Here, the particle size of the sprayed liquid is determined by the pore size of the spray block.

  According to the present invention, since liquid such as deodorant liquid is sucked into the negative pressure space through the porous spray block, it is sufficient that the liquid is absorbed in any part of the spray block, and the liquid supply unit is positioned. There is almost no need. Further, since the particle size of the liquid to be sprayed is determined by the pore size of the spray block, it is possible to spray a liquid having an arbitrary particle size by setting the pore size of the spray block.

  1 and 2 show a first embodiment of a liquid spraying apparatus according to the present invention. FIG. 1 is an overall view of the liquid spraying apparatus, and FIG. 2 is a cross-sectional view showing the main part.

  The liquid spraying apparatus 10 includes an air supply unit 11 and a liquid supply unit 12. The air supply unit 11 includes a compressor 110 that compresses air and an air supply pipe 111 that supplies air compressed by the compressor 110. A nozzle 112 is attached to the tip of the air supply pipe 111 as shown in FIG. The inner diameter of the nozzle 112 is narrowed so that the downstream side (the outlet 112a side) gradually decreases, and the diameter of the tip of the nozzle 112 is the smallest. A stopper 112b protruding outward is provided near the upstream side of the nozzle 112, and the air supply pipe 111 is abutted against the stopper 112b to connect the nozzle 112 and the air supply pipe 111.

  On the other hand, the liquid supply unit 12 includes a liquid tank 121 storing the deodorizing liquid L1 and a rod-like capillary phenomenon promoting member 122 formed by weaving resin fibers. The capillary phenomenon promoting member 122 is soaked in the deodorizing liquid L1 in the liquid tank 121 on the lower side, and the deodorizing liquid L1 in the liquid tank 121 is pumped upward by the capillary phenomenon.

  In the air supply unit 11 and the liquid supply unit 12 configured as described above, the nozzle 112 and the capillary phenomenon promoting member 122 of the air supply unit 11 are connected to a spray block 13 described below.

  The spray block 13 is made of a porous resin made of polypropylene, polyethylene, acrylic, polyvinyl chloride, ABS resin, etc., and has a pore diameter of 5 μm to 400 μm, and is adapted to the type of liquid to be sprayed. An arbitrary hole diameter is used. The spray block 13 has a spherical shape, and the upper part of the capillary action promoting member 122 is inserted in the lower part, and the nozzle 112 is inserted in the side face. In addition, the spray block 13 has a negative pressure space 131 in front of the air outlet 112a of the nozzle 112, and the air flow cross-sectional area of the negative pressure space 131 is larger than that of the air outlet 112a. A spray liquid passage 132 that opens toward the outside of the spray block 13 is provided in front of the negative pressure space 131, and liquid is sprayed from the tip of the spray liquid passage 132.

  When the compressor 110 according to the present embodiment is driven, the compressed air flows into the nozzle 112 through the air supply pipe 111 as shown in FIG. This air is throttled at the air outlet 112 a of the nozzle 112 and then flows into the negative pressure space 131. Here, since the air flow cross-sectional area of the negative pressure space 131 is larger than the air flow cross-sectional area of the air outlet 112a, the pressure of the air blown from the air outlet 112a is reduced in the negative pressure space 131, The negative pressure space 131 becomes negative pressure. As a result, the deodorizing liquid L1 (shown by the arrow in FIG. 2) in the liquid tank 121 travels through the capillary action promoting member 122 to the spray block 13 and is sucked toward the negative pressure space 131 through the hole of the spray block 13. Is done. Furthermore, it atomizes from the air which ejected from the blower outlet 112a, and is sprayed outside through the spray liquid channel | path 132. FIG.

  According to the present embodiment, the capillary phenomenon promoting member 122 that guides the deodorant liquid L1 only needs to be inserted in any part of the spray block 13, and positioning and the like are hardly necessary.

  In addition, since the particle size of the liquid to be sprayed is determined by the pore size when passing through the spray block 13, the desired particle size is set by setting the pore size of the spray block 13 according to the spray characteristics of the deodorant liquid L1. Diameter liquid can be sprayed.

  In addition, as a material of the spray block 13, you may make it use porous ceramics other than resin.

  FIG. 3 shows a second embodiment of the liquid spraying apparatus according to the present invention. The same components as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The liquid supply unit 14 according to the present embodiment has a liquid tank 141, and feeds the deodorizing liquid L <b> 1 in the liquid tank 141 to the spray block 13 through the water pipe 142. In addition, when the on-off valve 143 is installed in the middle of the water passage pipe 142 and the on-off valve 143 is opened, the deodorizing liquid L1 in the liquid tank 141 has the negative pressure space portion 151 through the water passage pipe 142. To be supplied.

  Further, the spray block 15 according to the present embodiment is a porous member formed of a sintered metal filter material. The terminal 161 of the high voltage negative ion generator 16 is connected to a part of the stopper 112b of the metal nozzle 112.

  According to this embodiment, when the compressor is driven and the on-off valve 143 is opened, the deodorizing liquid L1 in the liquid tank 141 is supplied to the spray block 15 and further sucked into the negative pressure space 151. The deodorized liquid L1 having a predetermined particle diameter is sprayed to the outside. Here, when a voltage is applied to the terminal 161 of the high voltage negative ion generator 16, negative ions are added to the spray liquid, and a good deodorant liquid L1 is supplied to the human body. In addition, when the natural flow of the deodorant liquid L1 in the liquid tank 141 is difficult, a pump (not shown) may be provided instead of the on-off valve 143. Other configurations and operations are the same as those in the first embodiment.

  4 and 5 show a third embodiment of the liquid spraying apparatus according to the present invention. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The spray block 17 according to the present embodiment uses a cylindrical porous material extending vertically, and the lower end side of the spray block 17 is immersed in the deodorizing liquid L1 in the liquid tank 121. The nozzle 113 is inserted into the spray block 17 from above, and an air supply pipe 111 is connected to the upper side. Further, the inner diameter of the nozzle 113 is gradually reduced from the upper part toward the center, and a blower outlet 113a extending horizontally in four directions is formed on the lower end side of the nozzle 113. A negative pressure space 113b is formed in front of the air outlet 113a (closer to the periphery) and is cut out obliquely upward. The air flow cross-sectional area of the negative pressure space 113b is larger than the air flow cross-sectional area of the air outlet 113a.

  According to the present embodiment, when the compressor is driven, the compressed air flows toward the lower end of the nozzle 113, then flows horizontally through the outlet 113a, and further passes through the negative pressure space 113b. It flows out diagonally upward. Here, since the air flow cross-sectional area of the negative pressure space portion 113b is larger than the air flow cross-sectional area of the air outlet 113a, the negative pressure space portion 113b becomes negative pressure, and is thereby stored in the liquid tank 121. As shown by the arrow in FIG. 4, the deodorizing liquid L1 is transmitted upward through the spray block 17 and flows into the negative pressure space 113b. The deodorizing liquid L1 flowing into the negative pressure space 113b is sprayed to the outside through the holes of the spray block 17. In addition, although four each of the blower outlet 113a and the negative pressure space part 113b were formed, the number is not limited to this. Other configurations and operations are the same as those in the first embodiment.

  In the above embodiment, the deodorizing liquid L1 is exemplified as the spray liquid, but any liquid can be used as long as it is a sprayable liquid. For example, disinfecting liquid, disinfecting water, aromatic liquid, lotion, pesticide, paint Etc.

Overall view of the liquid spraying apparatus according to the first embodiment Sectional drawing which shows the principal part of the liquid spraying apparatus which concerns on 1st Embodiment. Sectional drawing which shows the principal part of the liquid spraying apparatus which concerns on 2nd Embodiment. Sectional drawing which shows the principal part of the liquid spraying apparatus which concerns on 3rd Embodiment. 4 is an enlarged cross-sectional view in the direction of arrows AA in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Liquid spraying device, 11 ... Air supply part, 12, 14 ... Liquid supply part, 13, 15, 17 ... Spray block, 112, 113 ... Nozzle, 112a, 113a ... Outlet, 131, 151, 113b ... Negative pressure Space part, 121, 141 ... liquid tank, 16 ... high voltage negative ion generator.

Claims (6)

In a liquid spraying apparatus that includes an air supply unit that ejects compressed air through a nozzle and a liquid tank that stores liquid such as deodorant liquid and disinfectant liquid, and sprays liquid with compressed air,
Inserting at least the nozzle of the air supply unit into a spray block of a porous member formed with a predetermined hole diameter, immersing at least a part of the spray block in the liquid in the liquid tank,
A liquid spraying apparatus characterized by having a negative pressure space portion having an air flow cross-sectional area larger than that of the air outlet in front of the air outlet of the nozzle. In a liquid spraying apparatus that includes an air supply unit that ejects compressed air through a nozzle and a liquid supply unit that supplies liquid such as deodorant liquid and disinfectant liquid, and sprays liquid with compressed air,
Inserting at least the nozzle of the air supply unit into a spray block of a porous member formed with a predetermined pore diameter, and connecting the downstream side of the liquid supply unit to the spray block;
A liquid spraying apparatus characterized by having a negative pressure space portion having an air flow cross-sectional area larger than that of the air outlet in front of the air outlet of the nozzle. The liquid spraying device according to claim 1 or 2, wherein the negative pressure space communicates with a spray liquid passage that opens toward the outside of the spray block. The liquid spraying device according to claim 2, wherein the liquid supply unit includes a liquid tank storing liquid and a capillary phenomenon promoting member capable of generating a capillary phenomenon for guiding the liquid in the liquid tank to the spray block. . The liquid spray apparatus according to any one of claims 1 to 4, wherein the spray block is formed of a sintered metal filter material. The liquid spray apparatus according to claim 5, further comprising a high-voltage negative ion generator that adds negative ions to the sprayed liquid.

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