JP6614554B2 - Nozzle cleaning method and nozzle cleaning structure of atomizer - Google Patents

Description

  The present invention relates to a nozzle cleaning method and a nozzle cleaning structure for eliminating blockage of a nozzle member in an atomization apparatus that causes high-pressure fluids to collide with each other.

Atomization is a concept of pulverizing, dispersing, or emulsifying solid particles into fine particles. For atomization, a atomization apparatus that performs atomization using collision of jets including a target material is used.
In Patent Documents 1 and 2, a mixture of pressurized solvent and raw material particles is introduced from the introduction channel toward the nozzle member, and the shearing force when passing through the plurality of acceleration channels of the nozzle member is passed. A mechanism is disclosed in which raw material particles are atomized by energy with which the mixed liquid collides. As shown in FIG. 10, conventional atomization apparatuses 200 such as Patent Documents 1 and 2 introduce a raw material pressurized at an ultrahigh pressure into a housing 201 through an introduction channel opening 210 and an introduction channel 211. . Then, compression, shearing, turbulent flow, etc. are generated when passing through the gap (slit) between diamond, which is the material of the nozzle member 209, that is, the fine acceleration flow path 214, and the raw material is caused to collide oppositely at the collision position 226. To do. Then, after the pressurized raw material is jetted through the through-hole 217 and received by the jet receiving member 222, the raw material particles are led out from the outlet channel 213 and the outlet channel opening 212. These devices 200 are called atomization devices 200 having slit-type chambers because the nozzle member 209 has slits, and in particular, can improve emulsification performance. When emulsifying with cosmetics, food, pharmaceuticals, etc., stronger collision energy and shearing force are obtained than with opposing collision, and emulsification is promoted.

JP 2005-144329 A Japanese Patent No. 50212234

  In recent years, due to the increase in production volume in the above mechanism, the fine acceleration channel diameter (inner diameter of the fine acceleration channel) is aimed at reducing erosion at the jet collision position due to the increase in flow rate and improving atomization such as emulsification and dispersion. ) Tends to be small. However, by reducing the diameter of the fine acceleration channel, the opportunity for clogging (clogging) with raw material particles in the fine acceleration channel is also increasing. In the conventional atomization apparatus 200, when clogging occurs in the fine acceleration flow path 214, in order to clean the nozzle member 209, the atomization apparatus 200 is completely disassembled, that is, the first sealing member 202 is removed. After the removal, the pressing member 204, the jet receiving member 222, and the second sealing member 205 are removed from the first sealing member 202 side, and the nozzle member 209 is taken out from the inside of the fine acceleration flow path 214 or through-holes. The blockage could not be resolved without cleaning the inside of 217 (FIG. 10). Further, when the blockage could not be eliminated by washing, the nozzle member 209 had to be discarded and replaced. Therefore, there has been a demand for a simple blockage elimination method.

  Accordingly, an object of the present invention is to provide a nozzle cleaning method and fine particles that can eliminate clogging completely by backwashing, and can easily eliminate clogging of the nozzle member without total disassembly of the atomization device or disposal replacement of the nozzle member. An object of the present invention is to provide a nozzle cleaning structure for a gasification apparatus.

The nozzle cleaning method of the present invention includes a first inlet / outlet passage opening and a fourth inlet / outlet passage opening for introducing and discharging raw material particles, and the first introduction into the introduction pipe during normal high-pressure injection. An atomizing device that connects the outlet channel opening and connects the fourth inlet / outlet channel opening to the outlet pipe and introduces the pressurized fluid from the first inlet / outlet channel opening, and during backwashing, The fourth inlet / outlet passage opening is connected to the introduction pipe and the first introduction / outlet opening is connected to the outlet pipe, and pressurized fluid is introduced from the fourth introduction / outlet opening. Thus, the raw material particles closing the flow path of the nozzle member are caused to flow out.
Further, the nozzle cleaning structure of the atomization apparatus of the present invention includes a nozzle member having a fine acceleration channel for causing the pressurized fluids to collide with each other, a first introduction / extraction channel opening for introducing and deriving the raw material particles, and A fourth inlet / outlet passage opening, and during normal high-pressure injection, the first introduction / outlet passage opening is connected to the introduction pipe and the fourth introduction / outlet passage opening is connected to the outlet pipe; A device for atomizing pressurized fluid from the first inlet / outlet channel opening, wherein the fourth inlet / outlet channel opening is connected to the inlet pipe, and the first inlet / outlet flow is connected to the outlet pipe. A road opening is connected.

According to the present invention, the first inlet / outlet passage opening and the fourth inlet / outlet passage opening for introducing and discharging the raw material particles are provided, and the first introduction / outlet passage is provided in the introduction pipe at the time of normal high-pressure injection. By connecting the opening and connecting the fourth inlet / outlet flow passage opening to the outlet pipe and introducing the pressurized fluid from the first inlet / outlet passage opening, the pressurized fluid is connected to the first inlet / outlet passage. It enters the fine acceleration flow path through the second introduction / extraction flow path, passes through the fine acceleration flow path and collides with each other, passes through the passage hole, and passes through the third introduction / discharge flow path and the fourth introduction flow path. Jetted from the fourth inlet / outlet channel opening through the outlet channel. At the time of backwashing, the fourth inlet / outlet flow passage opening is connected to the introduction pipe and the first introduction / outflow passage opening is connected to the outlet pipe, while pressing the upper part of the nozzle member, By introducing the pressurized fluid from the passage opening, the pressurized fluid enters the through hole through the third inlet / outlet channel and the fourth inlet / outlet channel, and after passing through the through hole, is finely accelerated. The pressurized fluid can flow out from the opening of the first inlet / outlet channel through the first inlet / outlet channel and the second inlet / outlet channel through the first inlet / outlet channel, The raw material particles that block can be discharged. The backwashing in the present invention means that the inside of the flow path of the nozzle member is washed by causing the pressurized fluid to flow backward in the direction opposite to the flow direction of the normal pressurized fluid in the atomization apparatus.
Further, according to the present invention, the clogging elimination time can be shortened to about one-fourth, the number of events in which the clogging cannot be eliminated is reduced, and the number of discarded nozzle members can be reduced.

In the nozzle cleaning method of the present invention, the nozzle member and the second sealing member for sealing the nozzle member are tapered, and the nozzle member is pressed while pressing the upper part of the nozzle member by pressing the nozzle member. The engagement between the tapered convex portion and the tapered concave portion of the second sealing member is maintained to prevent the nozzle member and the second sealing member from being separated.
The nozzle cleaning structure of the atomization apparatus according to the present invention has a structure in which the pressurized fluid moves forward in the direction of the collision force generated when the pressurized fluid collides with the wall surface in the vicinity of the collision position of the fine acceleration channel during backwashing. A nozzle member pressing member that absorbs a collision force and maintains the fitting of the second sealing member for sealing the nozzle member and the nozzle member, and the nozzle member pressing member is in contact with the nozzle member It is characterized by becoming.
Further, the nozzle cleaning structure of the atomization apparatus of the present invention makes it possible to detach the nozzle member presser, absorb the collision force, maintain the fitting of the nozzle member and the second sealing member, and A third sealing member for adjusting the pressing force of the nozzle member press against the nozzle member is brought into contact with the nozzle member press.

  According to the present invention, in the conventional apparatus, the nozzle member and the second sealing member may be disengaged during backwashing. By providing the nozzle member presser and the third sealing member, Can be resolved. Further, since the third sealing member is provided separately from the inlet / outlet channel opening, the pressurized fluid introduction / extraction function and the sealing function are performed by different members. Therefore, torque management and seal management are simplified, and the work load on the operator is reduced.

  The nozzle cleaning method of the present invention includes a pressurizing means for sending the pressurized fluid of 100 MPa or less, and connects the introduction pipe to the fourth introduction / exit flow path opening to provide a solvent of 100 MPa or less. A pressurized fluid that is a mixed solution is fed.

According to the present invention, the clogging can be eliminated by pressure washing of 100 MPa or less only by removing and attaching the resin nozzle member presser, and the entire decomposition becomes unnecessary.
Further, according to the present invention, the nozzle member is provided with a pressurizing means for feeding a pressurized fluid of 100 MPa or less, and the nozzle member presser is made of a material that is not easily worn against pressurized cleaning of 100 MPa or less. And the fitting of the second sealing member can be maintained, and the pressure-resistant structure is maintained even during backwashing.

  In the nozzle cleaning structure of the atomization apparatus according to the present invention, the housing has a cylindrical shape, and the first inlet / outlet passage opening and the fourth introduction / outlet passage opening are provided on a cylindrical side surface, and the nozzle member pressing member is provided. An inlet / outlet passage is provided on the central axis side of the nozzle member, and the nozzle member presser is disposed in the introduction / outlet passage in a direction in which the pressurized fluid is introduced.

  According to the present invention, the flow path for the pressurized fluid is formed in the third sealing member, the nozzle member pressing member, and the nozzle member located on the upper surface of the housing by providing the introduction / exit flow passage opening on the cylindrical side surface of the housing. This eliminates the necessity and simplifies the apparatus configuration.

  The nozzle cleaning structure of the atomization apparatus of the present invention is characterized in that a ring for preventing a pressurized fluid from colliding with the nozzle member press is provided.

  According to the present invention, it is possible to reduce the wear of the nozzle member holder by providing the ring around the nozzle member holder, and to prevent the generation of contaminants in the pressurized fluid during high-pressure injection. .

  In the nozzle cleaning structure of the atomization apparatus of the present invention, the housing has a columnar shape, the third sealing member is disposed along the central axis of the nozzle member presser, and the third sealing member The first inlet / outlet channel opening and the first inlet / outlet channel are formed along a central axis.

  According to the present invention, the third sealing member has a function of the first introduction flow path opening and the first introduction / extraction flow path, and the nozzle member press has a function of the second introduction / extraction flow path. This is possible and results in a simpler structure.

  In the atomization apparatus of the present invention, the inner diameter of the first introduction / exit flow path opening and the inner diameter of the fourth introduction / exit flow path opening are larger than the inner diameter of the through hole, and the inner diameter of the through hole is the fine acceleration flow It is characterized by being larger than the inner diameter of the path.

  According to the present invention, the inner diameter of the inlet / outlet flow passage opening is larger than the inner diameter of the through hole, and the inner diameter of the through hole is larger than the inner diameter of the fine acceleration flow path. The structure is such that the blockage is easily resolved.

  According to the present invention, it is possible to perform pressure backwashing from the second introduction / exit flow path, which has a higher blocking effect than washing. Further, only by removing and attaching the third sealing member and the resin nozzle member presser, the clogging can be eliminated by pressure backwashing of 50 MPa to 100 MPa, and total disassembly is unnecessary. Further, the conventional blockage elimination work time is about 35 minutes, but in the present invention, it is about two and a half minutes, and the blockage elimination work time can be shortened to about one-fourth. Further, the number of events in which the blockage cannot be eliminated is reduced, and the number of nozzle members discarded can be reduced accordingly.

It is a schematic structure figure of the atomization device concerning a 1st embodiment of the present invention. It is a schematic structure figure of the atomization device concerning a 2nd embodiment of the present invention. It is a perspective view which shows the nozzle member holding | suppressing which concerns on the said embodiment. It is a schematic structure figure of the atomization device concerning a 3rd embodiment of the present invention. It is a perspective view which shows the nozzle member holding | suppressing which concerns on the said embodiment. It is a schematic structure figure of the atomization device concerning a 4th embodiment of the present invention. It is a perspective view of the 3rd sealing member concerning this embodiment. It is a schematic structure figure of the atomization device concerning a 5th embodiment of the present invention. It is a perspective view which shows a part of nozzle member which concerns on the said embodiment. It is a structural diagram which illustrates the conventional atomization apparatus.

  The form for implementing this invention is demonstrated below.

(First embodiment)
FIG. 1 is a structural view showing an atomization apparatus 100 according to the first embodiment of the present invention. The atomization apparatus 100 of the present invention includes a first sealing member in a chamber 3 formed inside by fitting a first sealing member 2 into a substantially cup-shaped housing 1 having a predetermined thickness. A second sealing member 5 supported at the center of the chamber 3 by a pressing member 4 inserted from the side 2, and a third sealing member 7 detachably attached to the substantially cup-shaped bottom surface 6 of the housing 1. The nozzle member 9 is held between the nozzle member presser 8 in contact with the inner wall of the nozzle member 9. In FIG. 1, the housing 1 is illustrated as a substantially cup shape upside down, and the bottom surface 6 is illustrated in the upper part of FIG.

  One end of the housing 1 is provided with a first introduction / exit flow path opening 10 for introducing a pressurized fluid to be atomized into the chamber 3 and leading it out of the chamber 3. A pressurized fluid that flows through the first inlet / outlet channel opening 10 is provided so as to penetrate the housing 1 and communicate with the first inlet / outlet channel opening 10 and the chamber 3. Is introduced into the chamber 3 formed in the central portion of the atomization apparatus 100 through the first introduction / extraction flow path 11 and the pressurized fluid is led out from the chamber 3 to the first introduction / extraction flow path opening 10. can do. The other end of the housing 1 is provided with a fourth inlet / outlet channel opening 12 for leading the pressurized fluid from the chamber 3 and introducing it into the chamber 3. A fourth inlet / outlet channel 13 is provided to communicate with the fourth inlet / outlet channel opening 12 and the chamber 3 (inside the housing 1) so as to penetrate the housing 1, and is provided via the fourth inlet / outlet channel 13. Then, the pressurized fluid is led out from the chamber 3 to the fourth inlet / outlet channel opening 12 and introduced from the fourth inlet / outlet channel opening 12 into the chamber 3. In the housing 1, the nozzle member 9 is held between the inner wall of the adjacent chamber 3 and the nozzle member 9 by being held by the second sealing member 5 and the nozzle member presser 8 so as not to contact the inner wall of the chamber 3. A gap 15 is formed. The gap 15 serves as a second introduction / extraction channel 15 that communicates the first introduction / extraction channel 11 and the fine acceleration channel 14 inside the nozzle member 9. In addition, a gap 16 is formed in the housing 1 by inserting the pressing member 4 and the second sealing member 5 into the housing 1. The gap 16 becomes a third introduction / extraction flow path 16 that communicates the through hole 17 of the nozzle member 9 and the fourth introduction / extraction flow path 13. In addition, the raw material which comprises the housing 1 is not specifically limited, For example, the raw material used as a housing of the existing atomization apparatus may be sufficient.

  The first sealing member 2 has a tapered shape along the inner wall of the first opening 18 of the housing 1, and seals in contact with the opening 18. The material of the first sealing member 2 is not particularly limited, but is preferably the same as that of the housing 1. The chamber 3 is a slit chamber having a nozzle member 9 in its internal space. The nozzle member 9 has a plurality of acceleration channels, and the raw material pressurized with ultrahigh pressure passes through a gap (slit) between diamonds. Atomization is performed by compression, shear, turbulent flow, etc. The chamber 3 is a bottle-shaped cavity, and includes a small-diameter cylindrical space on the housing bottom surface 6 side, a large-diameter cylindrical space on the first sealing member 2 side, and a large-diameter cylindrical space. Consists of a reduced diameter portion that gradually decreases in diameter into a small cylindrical space. The large-diameter cylindrical space accommodates the pressing member 4, the small-diameter cylindrical space accommodates the nozzle member 9, and a part of the nozzle member 9 and the second sealing member 5 are included in the space of the reduced diameter portion. Is stored. A part of the second sealing member 5 is pressed against and pressed against the inner wall of the reduced diameter portion by the pressing member 4.

  The pressing member 4 is a concave or cup-shaped member, and supports the second sealing member 5 at both ends 19 thereof. Both end portions 19 support the second sealing member 5 without blocking the opening 20 of the through-hole 17, and a jet receiving member provided with a semicircular wall surface 21 into which the pressurized fluid is injected and collided inside the pressing member 4. 22 is fitted. A passage hole 23 is formed at one end of both end portions 19, and the third introduction / extraction flow path 16 and the fourth introduction / extraction flow path 13 communicate with each other via the passage hole 23, and pressurized fluid flows in or out. It is possible. The pressing member 4 is inserted into the chamber 3 through the first opening 18 and contacts the inner wall surface 1a of the housing to fix and support the second sealing member 5 in an immobile state.

  The second sealing member 5 includes a tapered concave portion 24 at the center, and fits with the tapered convex portion 9 b of the nozzle member 9. Since the tapered portions 24 and 9b of the second sealing member 5 and the nozzle member 9 are fitted to each other and the second sealing member 5 is brought into an immobile state by the pressing member 4, the nozzle member is in a forward flow of pressurized fluid. 9 becomes immobile in the chamber 3. The nozzle member 9 and the second sealing member 5 are caulked together.

  A circular second opening 25 is formed on the bottom surface 6 (the upper portion of the housing 1 in FIG. 1). The inner diameter of the second opening 25 is not necessarily limited, but if it is equal to or smaller than the outer diameter of the cylindrical nozzle member 9, the nozzle member presser 8 has the first inlet / outlet passage 11 and the second inlet / outlet passage 15. The pressurized fluid can flow out and in without blocking. A part of the inner part of the third sealing member 7 is embedded in the housing 1 and is fixed to the housing 1 by a predetermined fixing means such as a screw or a bolt, so that the pressurized fluid leaks out of the atomization apparatus 100. The second opening 25 is sealed without a gap so as not to occur. Further, the third sealing member 7 is in contact with and supported by the nozzle member presser 8 without any gap, and prevents the pressurized fluid from entering between the third sealing member 7 and the nozzle member presser 8. The third sealing member 7 adjusts the size of the nozzle member presser 8 or adjusts the sealing pressure applied to the housing 1 by the fixing means, thereby pressing the nozzle member presser 8 against the nozzle member 9. Can be adjusted. Note that the third sealing member 7 and the nozzle member presser 8 may be integrated as a lid, and the pressure of the lid against the nozzle member 9 may be adjusted by using the lid during backwashing.

  The nozzle member presser 8 is a resin member and is supported on the inner side of the third sealing member 7 and the entire opening edge of the second opening 25. Backwashing of pressurized fluid (in order to eliminate clogging in the nozzle member 9 caused by contaminants, the pressurized fluid is flowed in the direction opposite to the flow of pressurized fluid during normal high-pressure injection, The nozzle member presser 8 presses the cylindrical portion 9a of the nozzle member 9 from the upper part, that is, the third sealing member 7 side. The removal of the sealing member 5 is prevented. The resin is preferably a material that is not easily worn, such as wear-resistant engineering plastic (PEEK). The nozzle member presser 8 is sealed so as not to be in close contact with the inner side of the third sealing member 7 partially embedded in the housing 1 and the entire opening edge of the second opening 25. And prevent leakage of pressurized fluid. The second opening 25 is formed in the housing 1 on the cylindrical portion 9a side in the central axis direction of the nozzle member 9, so that the cylindrical member 9a can be easily pressed by the nozzle member retainer 8, and the nozzle member retainer 8 Can be easily replaced.

  The nozzle member 9 has a cylindrical shape having a tapered convex portion at one end. The outer diameter of the nozzle member 9 is smaller than the inner diameter of the chamber 3, and the nozzle member 9 has a wall surface of the housing 1 at the center in the chamber 3. It arrange | positions so that a clearance gap may be formed between wall surfaces, without contacting. The nozzle member 9 has a fine acceleration channel 14 penetrating in a direction perpendicular to the central axis direction of the nozzle member 9 and a central position 26 of the fine acceleration channel 14 in the central axis direction of the nozzle member 9. And a through hole 17 formed along the same, and is used to collide and atomize a fluid containing raw material particles. The center position 26 of the fine acceleration flow path 14 is a collision position 26 where the pressurized fluid collides, and the through hole 17 is perpendicular to the fine acceleration flow path 14 and is in the vicinity of the collision position 26 in the fine acceleration flow path 14. The fine acceleration channel 14 and the third inlet / outlet channel 16 are communicated with each other.

The nozzle member 9 may be a member in which the two nozzle members 9 are press-contacted and the fine acceleration flow path 14 is formed by a minute gap at the contact portion, but the nozzle member 9 is constituted by a single member. It is preferable to provide the fine acceleration channel 14 and the through hole 17. That is, when the nozzle member 9 is composed of two members, the nozzle member 9 has a configuration that is vulnerable to the pressure load caused by the backflow of the pressurized fluid during backwashing, and may be separated and disassembled into two members. When one nozzle member 9 is provided with the fine acceleration flow path 14 and the through-hole 17, the structure is durable against backwashing without being separated and disassembled against a reverse pressure load generated during backwashing. Become.
The wall surface of the fine acceleration channel 14 of the nozzle member 9 is easily worn because it is a region where shear force is generated by the high pressure fluid, and the wall surface at the central position 26 is a collision region between the high pressure fluids, and the nozzle member 9 is backwashed. At this time, since it is also a region where the pressurized fluid flowing backward from the opening 20 collides, it is most easily worn. Therefore, the wall surface of the central position 26 is preferably formed of diamond, and the fine acceleration channel 14, the opening in the fine acceleration channel 14, and the wall surface of the through hole 17, which are located near the collision position 26, are formed of diamond. It is more preferable. Further, not only the vicinity of the collision position 26 but also the entire inner wall surface of the fine acceleration channel 14 and the through hole 17 may be formed of diamond. As a result, the life of the nozzle member 9 can be extended.

  The first introduction / exit flow path opening 10 is both an external introduction pipe for introducing pressurized fluid from the outside of the atomization apparatus 100 and an external outlet pipe for introducing pressurized fluid to the outside. Similarly, the fourth inlet / outlet passage opening 12 can be connected to the inlet pipe and outlet pipe. By switching the pipe connection, it is easy to switch from normal high-pressure injection to backwashing. The inner diameter of the first inlet / outlet channel opening 10 is set to be larger than the inner diameter of the first inlet / outlet channel 11, and the second inlet / outlet channel 15 is set to be larger than the inner diameter of the fine acceleration channel 14. The inner diameter of the first inlet / outlet channel 11 may be equal to or larger than the inner diameter of the second inlet / outlet channel 15. As a result, the pressurized fluid blocked in the fine accelerating flow path 14 during backwashing is likely to flow out of the nozzle member 9 and the blockage is easily eliminated. The inner diameter of the fine acceleration channel 14 is set to be smaller than the inner diameter of the through hole 17. Further, the inner diameter of the through hole 17 is smaller than the inner diameter of the third introduction / extraction flow path 16, and the inner diameter of the third introduction / extraction flow path 16 is smaller than the inner diameter of the fourth introduction / extraction flow path opening 12. . The inner diameter of the third inlet / outlet channel 16 may be equal to or smaller than the inner diameter of the passage hole 23, and the inner diameter of the passage hole 23 may be equal to or smaller than the inner diameter of the fourth inlet / outlet channel 13. As a result, during backwashing, the pressurized fluid can easily flow into the fine accelerating flow path 14 from the outside of the atomization apparatus 100 and the blockage can be easily eliminated. The first introduction / exit flow path opening 10, the first introduction / exhaust flow path 11, the fine acceleration flow path 14, the through hole 17, the passage hole 23, the fourth introduction / exhaust flow path 13, and the fourth introduction / extraction flow The cross-section of the passage opening 12 is preferably substantially circular, and this makes it easier for the pressurized fluid to slip during backwashing and to eliminate the blockage.

  Next, the operation of the atomization apparatus 100 according to this embodiment will be described. The atomization apparatus 100 according to the present embodiment connects the inlet pipe and the first inlet / outlet passage opening 10 and connects the outlet pipe and the fourth inlet / outlet passage opening 12 during normal high-pressure injection. Then, a pressurized fluid obtained by pressurizing the mixed liquid of the solvent and the raw material particles from about 100 MPa to about 150 MPa by a predetermined pressurizing means is introduced from the first introduction / outflow passage opening 10. Thereafter, the pressurized fluid is supplied from the second introduction / extraction channel 15 located on the outer periphery of the nozzle member 9 into the fine acceleration channel 14 through an opening formed on the side surface of the cylindrical portion of the nozzle member 9. The pressurized fluid that has entered the fine accelerating flow path 14 is subjected to a shearing force in the process of gathering in a reverse radial direction toward the center of the nozzle member 9, so Raw material particles are atomized by opposing collision. That is, the raw material particles are atomized by the shearing force when passing through the fine acceleration flow path 14 and the collision energy between the mixed liquids that have passed. Thereafter, the pressurized fluid enters the through hole 17 through an opening formed in the vicinity of the collision position 26 and is led out from the through hole opening 20 formed at the other end of the through hole 17. During normal high-pressure injection, the pressurized fluid that has passed through the first inlet / outlet flow path 11 may collide with the nozzle member retainer 8 to mix minute impurities with the pressurized fluid. It can be solved by removing the.

  When backwashing is necessary, that is, when coarse or aggregated raw material particles become contaminants and blockage occurs in the fine accelerating channel 14, the introduction pipe and the fourth introduction / exit channel opening 12 are opened. Connect the outlet pipe and the first inlet / outlet passage opening 10. In addition, the third sealing member 7 is removed at the time of pressure washing, the nozzle member presser 8 is assembled in the atomization apparatus 100, and further the third sealing member 7 is sealed to make the nozzle member 9 stationary. Press and fix. In this manner, the nozzle member 9 fitted to the second sealing member 5 is prevented from being detached as a mechanism that can withstand pressure backwashing of 50 MPa to 100 MPa opposite to normal high-pressure injection. Then, the solvent or mixed liquid pressurized from 50 MPa to 100 MPa from the fourth inlet / outlet flow path 13 is introduced into the fine acceleration flow path 14 in the reverse flow and is backwashed under pressure to eliminate the blockage. Note that the pressurized fluid used for backwashing may be a solvent alone or a mixture of solvent and raw material particles used during normal high-pressure injection, but in the case of a mixture. For example, work is easy because of the same pressurized fluid used during normal high-pressure injection. In addition, the temperature of the pressurized fluid at the time of backwashing is not particularly limited, but in the case of a highly viscous raw material, it is preferably 40 ° C to 60 ° C. When the pressurized fluid is water, the temperature is preferably 70 ° C. or lower in order to prevent the boiling point from being exceeded.

  In the present embodiment, the first introduction / outflow passage opening 10 and the fourth introduction / outflow passage opening 12 are formed of members such as the pressing member 4, the second sealing member 5, the nozzle member pressing 8, and the nozzle member 9. The first sealing member 2 or the third sealing member 7 provided separately does not have a sealing function for being housed and sealed in the housing 1 and the sealing function is provided separately. That is, separate members are responsible for a pipe connection function for connecting to an external introduction pipe and a lead-out pipe and a sealing function for housing and sealing the nozzle member 9 and the like in the housing 1. Therefore, in the housing 1, the first inlet / outlet channel opening 10 and the fourth inlet / outlet channel opening 12 are provided on a different surface or position from the first sealing member 2 and the third sealing member 7, The first inlet / outlet passage 11 and the fourth inlet / outlet passage 13 are not formed in the first sealing member 2 and the third sealing member 7. For example, in the case of the cylindrical housing 1 as in the present embodiment, the first sealing member 2 and the third sealing member 7 are provided on the upper surface or the bottom surface of the cylinder, and the first introduction / exit flow path opening 10, The first inlet / outlet channel 11, the fourth inlet / outlet channel opening 12, and the fourth inlet / outlet channel 13 are formed on the side surface of the cylinder. Further, the pressing member 4 is provided in the forward flow direction of the pressurized fluid in the through hole 17 for the purpose of appropriately pressing the nozzle member 9 during normal pressure injection, and the first sealing member 2 for the purpose of sealing. For the purpose of appropriately pressing the nozzle member 9 during backwashing, the nozzle member presser 8 and the third sealing member 7 are provided in the reverse flow direction of the pressurized fluid in the through hole 17. Therefore, the inflow / outflow direction of the pressurized fluid in the first introduction / extraction flow path 11 and the fourth introduction / extraction flow path 13 penetrating the housing 1 (the first introduction / extraction flow path 11 and the fourth introduction / extraction flow path 13). Is a direction different from the inflow / outflow direction of the pressurized fluid in the through hole 17 (extension direction of the through hole 17). For example, in the case of the present embodiment, the extending direction of the first introducing / extracting channel 11 and the fourth introducing / extracting channel 13 is coplanar and orthogonal to the extending direction of the through hole 17.

  In this embodiment, separate members have a pipe connection function and a sealing function. However, when one member has a pipe connection function and a sealing function, torque management for connecting to an external pipe and sealing are performed. It is necessary to perform two torque managements of the torque management with one member. In addition, it is necessary to perform sealing of the opening connected to the external pipe and sealing for sealing the housing 1 as a sealing member in one member, and it is necessary to perform two sealing managements with certainty. In this embodiment, when switching from normal pressure injection to backwashing, it is necessary to first disconnect the first introduction / exit passage opening 10 and the fourth introduction / exit passage opening 12 from the external pipe and switch the connection with the external pipe. There is also a need to detach the third sealing member 7 in order to detach the nozzle member presser 8. Therefore, when one member has a pipe connection function and a sealing function, it is necessary to perform two torque managements and two sealing managements for one member each time backwashing is performed, which places a burden on the operator. In this embodiment, since a member different from the function of connecting to the external pipe and the sealing function for housing and sealing inside the housing 1 bears, one member performs one torque management and one sealing management. It is only necessary, and work management becomes easy and the work load is reduced.

(Second Embodiment)
FIG. 2 is a structural diagram showing an atomization apparatus 100 according to the second embodiment of the present invention. In the atomization apparatus 100 of the present embodiment, a ring 27 is provided around the nozzle member presser 8, and the nozzle member presser 8 is mounted even during normal high-pressure injection. In addition, about the structure similar to 1st Embodiment, since it overlaps, description is abbreviate | omitted.

  In the atomization apparatus 100 of the present embodiment, the nozzle member presser 8 provided with the ring 27 has at least the upper surface of the nozzle member presser 8 in contact with the third sealing member 7 or the bottom surface of the nozzle member presser 8 is When the nozzle member 9 is in contact with the upper surface or the bottom surface of the nozzle member presser 8, the ring 27 contacts the third sealing member 7 or the nozzle member 9. The shape and position of the nozzle presser 8 provided with the ring 27 are particularly limited as long as the shape and position are in contact with the nozzle member 9 and the nozzle member 9 absorbs the impact of the pressurized fluid on the collision position 26 when backwashing. Not done. In the atomization apparatus 100, the ring 27 has a flow direction 28 of the pressurized fluid in the first inlet / outlet channel 11 during normal high-pressure injection, that is, the pressurized fluid that has passed through the first inlet / outlet channel 11. The nozzle member presser 8 is disposed at a position 29 that collides with the nozzle member presser 8 so as to cover at least a part of the nozzle member presser 8.

  FIG. 3 is a perspective view showing the nozzle member presser 8 provided with the ring 27 according to the present embodiment, and is an internal perspective view showing the internal structure by broken lines. For example, the nozzle member holder 8 is a cylinder or a prism, and the ring 27 is a hollow cylinder having a shape that covers the periphery of the nozzle member holder 8 (FIGS. 3A and 3C), (Not shown), and has a substantially cup shape (FIG. 3B). For adhering the nozzle member presser 8 and the ring 27, an adhesive means such as a chemical material is used, and the side surface of the nozzle member presser 8 has a recess and is fitted with the ring 27 (FIG. 3B). , (C)), the nozzle member presser 8 and the structure of the ring 27 may be in a stationary state. The material of the ring 27 is not particularly limited as long as it is a material having corrosion resistance, pressure resistance, and wear resistance that can withstand high pressure injection of a pressurized fluid. For example, a metal material such as stainless steel, aluminum, or an alloy is preferable. It may be a wear-resistant elastic material.

  The ring 27 absorbs the impact force when the pressurized fluid that has passed through the first introduction / exit flow path 11 collides with the nozzle member retainer 8 during normal high-pressure injection of the present invention, and the nozzle member retainer 8 wears. Is used to suppress the entry of minute impurities into the pressurized fluid. Therefore, the ring 27 of the present embodiment is not necessarily limited to the ring shape, and may be, for example, a plate shape. The shape of the inside of the atomization apparatus 100 is such that the pressurized fluid is prevented from directly colliding with the nozzle member presser 8. Should just be arranged. Further, the nozzle member presser 8 provided with the ring 27 according to the present embodiment may be used in backwashing, or may remain attached even during normal high-pressure injection, and is always attached without being removed in the atomization apparatus 100. May be. Although the nozzle member presser 8 can be attached and detached by the third sealing member 7, wear of the nozzle member presser 8 is suppressed by the ring 27 even during normal high-pressure injection, and foreign matter derived from the nozzle member presser 8 is generated. Is not necessary to remove. Therefore, it is not necessary to remove and attach the third sealing member 7 and the nozzle member presser 8 and workability is improved.

(Third embodiment)
FIG. 4 is a structural diagram showing an atomization apparatus 100 according to the third embodiment of the present invention. The atomization apparatus 100 according to the present embodiment includes two third sealing members 7, and the third sealing member 7 is formed with an introduction / exit flow path opening 31. An introduction / outflow passage 32 continuously connected is provided. A part 11 b of the first introduction / exit flow path 11 and a part 15 a of the second introduction / extraction flow path 15 are formed in the nozzle member presser 8. In addition, about the structure similar to 1st Embodiment, since it overlaps, description is abbreviate | omitted.

  One of the two third sealing members 7 is an introduction-side sealing member 33 and the other is an outlet-side sealing member 34 depending on the external piping to be connected. That is, the side connected to the introduction pipe becomes the introduction side sealing member 33, and the pressurized fluid is introduced into the chamber 3 from the outside of the atomization apparatus 100. Further, the side connected to the outlet pipe is the outlet side sealing member 34, and the pressurized fluid is led out of the atomization apparatus 100 from the chamber 3. During normal injection, the nozzle member presser 8 may be removed, the introduction side sealing member 33 is connected to the second opening 25, and the outlet side sealing member 34 is connected to the third opening 35. Further, the nozzle member presser 8 is attached at the time of backwashing, the introduction side sealing member 33 is connected to the third opening 35, the outlet side sealing member 34 is connected to the second opening 25, and the nozzle member presser 8 Abut and seal (FIG. 4). The external piping is not removed from the introduction-side sealing member 33 or the outlet-side sealing member 34. By removing the introduction-side sealing member 33 or the outlet-side sealing member 34 from the housing 1, normal high-pressure injection and backwashing are performed. Switch. The introduction-side sealing member 33 and the outlet-side sealing member 34 may be the same shape, but both can be connected to the second opening 25 and the third opening 35 and do not block the flow of the pressurized fluid. There is no particular limitation as long as the flow path is formed.

  When the third sealing member 7 (the introduction side sealing member 33 and the outlet side sealing member 34) is connected to the second opening 25, the introduction / outflow passage opening 31 is the first introduction / outflow passage opening 10. Thus, the inlet / outlet channel 32 is used as a part 11 a of the first inlet / outlet channel 11. The nozzle member presser 8 is formed with a part 11 b of the first introduction / extraction flow path 11, and the parts 11 a and 11 b of the first introduction / extraction flow path are continuously connected along the central axis 30. 1 introduction / exit flow path 11 is formed. The nozzle member presser 8 is formed with a portion 15 a of the second introduction / extraction flow path 15 orthogonal to the first introduction / extraction flow path 11, and is a second gap that is formed between the housing 1 and the nozzle member 9. Are continuously connected to the inlet / outlet flow path 15. When the third sealing member 7 is connected to the third opening 35, the introduction / extraction channel opening 31 becomes the fourth introduction / extraction channel opening 12, and the introduction / extraction channel 32 is the fourth introduction / extraction channel. 13 is a part 13 a of the 13 and is continuously connected to the fourth inlet / outlet channel 13.

  FIG. 5 is a perspective view showing the nozzle member presser 8 according to the present embodiment, and is an internal perspective view showing the internal structure by broken lines. It is preferable that the first introduction / exit flow path part 11b of the nozzle member presser 8 and the first introduction / exhaust flow path part 11a have the same cross-sectional shape. A rectangular parallelepiped shape or a polygonal column shape may be used, but if the column shape, the semi-column shape, or the tunnel shape is used, the flow path is hardly blocked. Similarly, it is preferable that the second inlet / outlet flow channel part 15a formed on the side 36 in contact with the nozzle member 9 and the second inlet / outlet flow channel 15 have the same cross-sectional shape.

  In the present example, the third sealing member 7 is used as a sealing member that covers the nozzle member presser 8 shown in the first embodiment, as well as the first introduction / outflow passage opening 10 and the fourth introduction. It is used as an application for the outlet passage opening 12. At the time of backwashing, the third sealing member 7 is detached from the housing 1 in a state where the external piping is connected without detaching the external piping from the third sealing member 7. The washing can be switched. Since only the two third sealing members 7 need to be attached and detached, torque management is required at two places, and the work becomes easy. The fourth inlet / outlet channel opening 12 can be detached by using the third sealing member 7, but may be the same as in the first embodiment. In that case, it is necessary to attach and detach external piping.

(Fourth embodiment)
FIG. 6 is a structural diagram showing an atomization apparatus 100 according to the fourth embodiment of the present invention. FIG. 7 is a perspective view of the third sealing member 7 according to the present embodiment, and is an internal perspective view showing the internal structure by broken lines. In the atomization apparatus 100 of the present embodiment, the fourth introduction / exit flow path opening 12 is formed in the first sealing member 2, and the first introduction / exit flow path opening 10 is formed in the third sealing member 7. Is done. The nozzle member presser 8 is the same as in the first embodiment or the second embodiment. In addition, about the structure similar to 1st Embodiment, since it overlaps, description is abbreviate | omitted.

  The first sealing member 2 is formed with a part of the fourth inlet / outlet channel opening 12 and the fourth inlet / outlet channel 13, and the fourth sealing member 4 and the jet flow receiving member 22 are also formed. The fourth inlet / outlet channel 13 is integrally formed linearly continuously with a part of the inlet / outlet channel 13. The third sealing member 7 is formed with a first introduction / exit passage opening 10 and a first introduction / exit passage 11, and the first introduction / exit passage 11 is a large-diameter cylindrical passage 11 a. And a plurality of small-diameter cylindrical channels 11b, which are continuously connected to the second inlet / outlet channel 15 (FIGS. 6 and 7).

  In the case of this embodiment, unlike the third embodiment, no flow path is formed in the nozzle member presser 8. Further, the first introduction / extraction flow path 11 and the second introduction / extraction flow path 15 are linearly connected so that the pressurized fluid passes through the side of the nozzle member holder 8 without colliding with the nozzle member holder 8. Become. Therefore, it is possible to suppress wear of the nozzle member presser 8. In addition, when the nozzle member presser 8 includes the ring 27 shown in the second embodiment, wear of the nozzle member presser 8 is further suppressed. Therefore, it is possible to keep the nozzle member presser 8 attached even during normal injection. Since it is not necessary to remove the nozzle member presser 8, the operation becomes easy.

(Fifth embodiment)
FIG. 8 is a structural view showing an atomization apparatus 100 according to the fifth embodiment of the present invention. In the atomization apparatus 100 of the present embodiment, the cylindrical member 9 a of the nozzle member 9 abuts on the housing 1, so that the nozzle member 9 is immovable in the chamber 3, and the cylindrical member 9 a in contact with the housing 1 As a result, the pressurized fluid can flow in the chamber 3. The nozzle member presser 8 and the third sealing member 7 are not used, and the first introduction / exit passage opening 10 and the first introduction / exit passage 11 are formed along the central axis 30. The opening of the 1 introduction / exit flow path 11 is in contact with the vicinity of the center of the cylindrical portion 9a. The description of the same configuration as that of the first embodiment is omitted.

  FIG. 9 is a perspective view showing the columnar portion 9a according to the present embodiment, and is an internal perspective view showing the internal structure by broken lines. The shape of the part 15a of the second inlet / outlet flow channel formed at the end 9c of the cylindrical portion 9a is, for example, a rectangular parallelepiped shape (FIG. 9A), a cylindrical shape (FIG. 9B), or those Combinations and the like (FIGS. 9B and 9C) are not particularly limited, but it is preferable that the flow path has a shape that does not hinder the flow of the pressurized fluid and does not easily block. In the present embodiment, since the nozzle member presser 8 is not used, it is not necessary to attach or detach the nozzle member presser 8.

  Although various examples have been described above, the present invention is not limited to the above-described embodiments and examples. Various embodiments can be used in appropriate combinations, and it is needless to say that the present invention can be appropriately modified without departing from the spirit of the present invention.

100 atomizer,
1 housing,
1a Housing inner wall surface,
2 1st sealing member,
3 chambers,
4 Holding member,
5 second sealing member,
6 Bottom,
7 Third sealing member,
8 Nozzle member presser,
9 Nozzle member,
9a Cylindrical shape part,
9b taper-shaped convex part,
9c end,
10 first inlet / outlet passage opening,
11, 11a, 11b 1st introduction / exit flow path,
12 Fourth inlet / outlet channel opening,
13 Fourth inlet / outlet channel,
14 Fine acceleration flow path,
15, 15a Second introduction / exit flow path (gap),
16 Third inlet / outlet channel (gap),
17 through hole,
18 first opening,
19 Both ends,
20 Opening of through-hole,
21 semicircular wall,
22 jet receiving member,
23 passage hole,
24 tapered recess,
25 second opening,
26 Collision position (center position),
27 rings,
28 Flow direction,
29 Collision position,
30 central axis,
31 Inlet / outlet channel opening,
32 Inlet / outlet flow path,
33 introduction side sealing member,
34 Lead-out side sealing member,
35 third opening,
36 Abutting side,
37 Third sealing member bottom

Claims (10)

A nozzle member having a slit type fine acceleration flow path;
A nozzle cleaning method for an atomization apparatus having a first introduction / exit flow path opening and a fourth introduction / exit flow path opening for introducing and deriving raw material particles,
The atomization device includes a nozzle member press that presses the nozzle member, and a second sealing member that fits the nozzle member,
During normal high-pressure injection, the first inlet / outlet passage opening is connected to the introduction pipe and the fourth introduction / outflow passage opening is connected to the outlet pipe, and the pressurized fluid is supplied from the first introduction / outlet passage opening. Introduced to cause the pressurized fluids to collide with each other in the fine acceleration flow path to be atomized, and at the time of backwashing, the fourth introduction / outflow path opening is connected to the introduction pipe and the fourth outlet is connected to the outlet pipe. The nozzle member is pressed by the nozzle member press while the pressurized fluid is introduced from the fourth inlet / outlet channel opening, and the nozzle member and the second outlet are connected. A nozzle cleaning method characterized by maintaining the fitting with a sealing member and causing the raw material particles closing the flow path of the nozzle member to flow out. The nozzle member includes a tapered convex portion, and the second sealing member includes a tapered concave portion,
While the upper portion of the nozzle member is pressed by the nozzle member press, the engagement between the tapered convex portion of the nozzle member and the tapered concave portion of the second sealing member is maintained, and the nozzle member and the first The nozzle cleaning method according to claim 1, wherein separation from the two sealing members is prevented.   The atomization apparatus includes a pressurizing unit for feeding the pressurized fluid of 100 MPa or less, and the introduction pipe is connected to the fourth introduction / exit flow path opening to provide a solvent or mixed solution of 100 MPa or less. 3. A nozzle cleaning method according to claim 1 or 2, wherein a pressurized fluid is fed. A nozzle member having a slit type fine acceleration flow path for causing the pressurized fluids to collide with each other;
A nozzle cleaning structure of an atomization device having a first introduction / exit flow path opening and a fourth introduction / exit flow path opening for introducing and deriving raw material particles,
The atomization device includes a nozzle member press that presses the nozzle member, and a second sealing member that fits the nozzle member,
At the time of normal high-pressure injection, the first inlet / outlet passage opening is connected to the introduction pipe and the fourth introduction / outlet passage opening is connected to the outlet pipe, and pressurized fluid is supplied to the first introduction / outlet passage. Introduced from the opening, the pressurized fluid collides with each other in the fine acceleration flow path to atomize, and at the time of backwashing, the fourth inlet / outlet flow path opening is connected to the inlet pipe, and the outlet pipe is connected to the outlet pipe. The nozzle cleaning structure of the atomization apparatus, wherein the first introduction / exit flow path opening is connected, and the fitting of the nozzle member and the second sealing member is maintained by the nozzle member pressing. The atomization device absorbs a collision force that the pressurized fluid collides with a wall surface of the fine acceleration channel during backwashing, and maintains a fitting between the nozzle member and the second sealing member. Has a member presser,
The nozzle cleaning structure of the atomization apparatus according to claim 4, wherein the atomization apparatus is configured to abut the nozzle member press against the nozzle member. The atomization device is configured to allow the nozzle member presser to be detachable, absorb the collision force, maintain the fitting of the nozzle member and the second sealing member, and press the nozzle member press against the nozzle member. A third sealing member for adjusting the pressing force of
6. The nozzle cleaning structure of the atomization device according to claim 5, wherein the atomization device is formed by bringing the third sealing member into contact with the nozzle member presser. The atomizer includes a cylindrical housing,
The housing includes the first inlet / outlet channel opening and the fourth inlet / outlet channel opening on a cylindrical side surface, and the inlet / outlet channel on the side of the nozzle member presser,
The nozzle cleaning structure of the atomization apparatus according to claim 6, wherein the atomization apparatus has the nozzle member presser disposed upstream of the pressurized fluid in the introduction / extraction flow path.   The atomization device according to any one of claims 5 to 7, wherein a ring for preventing a pressurized fluid from colliding with the nozzle member press is provided around the atomization device. Nozzle cleaning structure. The atomization device is provided with the first introduction overhead stream passage opening through the housings, a first introduction overhead stream path communicating Ji Yanba,
The housing has a cylindrical shape, and the third sealing member is disposed along a central axis of the nozzle member presser, and the first introduction / exit flow channel opening and the first are disposed along the central axis. The nozzle cleaning structure of the atomization apparatus according to claim 6, wherein an inlet / outlet flow path is formed. A through hole having an inner diameter larger than the inner diameter of the fine acceleration channel is formed in the fine acceleration channel,
The inner diameter of the first introduction / outflow passage opening and the inner diameter of the fourth introduction / outflow passage opening are larger than the inner diameter of the through hole. Nozzle cleaning structure of atomizer.