JP2010279904A - Atomizing apparatus and atomization system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an atomizing apparatus and atomization system which have improved atomization efficiency. <P>SOLUTION: The atomizing apparatus 30 includes a cylinder part 50 and an atomizing nozzle part 100. The cylinder part 50 includes a cylinder body 60 and a cylinder auxiliary tube 70. The cylinder body 60 includes: a first communicative hole 64 communicating the atomizing nozzle part 100 with a pressure chamber 130 for the purpose of ejecting with pressure a raw material fluid from the pressure chamber 130 to the atomizing nozzle part 100; and a second communicative hole 66 communicating a feeding tank 10 with a liquid sucking passage 84 for the purpose of sucking the raw material fluid from the feeding tank 10 into the cylinder part 50. The cylinder auxiliary tube 70 is fixed in the cylinder body 60, and directly communicates with the liquid sucking passage 84. A plunger 13, when sent in the pressure chamber 130 by pushing back a high pressure seal fixed in the cylinder auxiliary tube 70, pressurizes the raw material fluid taken in the pressure chamber 130. The atomizing nozzle part 100 atomizes a substance contained in the raw material fluid that is ejected with pressure. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an apparatus for atomizing substances handled in various industries such as food, chemicals, and pharmaceuticals. More specifically, the present invention includes a pressurizer (such as a pump) that applies high pressure to a raw material fluid, and includes the raw material fluid. The present invention relates to an apparatus and system for atomizing a substance to be atomized.

  As a pressurizer (pump or the like) that applies a high pressure to a fluid, a triple-type plunger pump is known (for example, Patent Document 1). In the conventional atomization processing system, the raw material fluid is sucked into the cylinder portion of the atomization device using a plunger pump, and is pressurized and discharged to the atomization nozzle portion of the atomization device. The material was atomized.

  The plunger pump has three plungers connected via a connecting rod to a crankshaft rotatably supported by a crankcase. Each plunger reciprocates as the crankshaft rotates, so that the plunger pump pressurizes the raw material fluid sucked into the cylinder portion. Specifically, in the raw material fluid suction process, as the plunger is pulled out from the cylinder portion, the raw material fluid passes through a check valve for suction provided in the first communication hole that communicates the cylinder portion and the charging tank. In the discharge stroke of the raw material fluid from the charging tank and as the plunger is pushed into the cylinder portion, the raw material fluid is pressurized, and the second communication hole that connects the cylinder portion and the atomizing nozzle portion is formed. It discharges from a cylinder part to the atomization nozzle part through the provided check valve for discharge. The discharge check valve is closed during the raw material fluid suction stroke, and the intake check valve is closed during the raw material fluid discharge stroke. By this mechanism, the raw material fluid is given a high pressure of about several MPa to several hundred MPa, and the substance contained in the raw material fluid has a desired particle size according to the characteristics of the atomization nozzle provided in the atomization nozzle section. To be atomized.

  In the case of changing the raw material, contamination is reduced by cleaning all the members that have been in contact with the previous raw material fluid from charging to discharging. Thereby, the problem that the substance contained in the next raw material fluid mixes with the substance contained in the previous raw material fluid does not arise.

Japanese Patent No. 3423915

  However, since the high-pressure pump of the conventional atomization processing system has many members, it takes much time to clean each member. In particular, the check valve for suction and the check valve for discharge have several problems depending on the properties of the raw material fluid.

The check valve for suction has a valve seat, a spring post, a spring, and a valve body. The valve seat is provided on the charging tank side of the first communication hole. The spring post is provided on the cylinder portion side of the first communication hole. The spring has one end fixed to the spring post. The valve body is a metal sphere, and is supported by the spring at the other end of the spring. In the discharge stroke of the raw material fluid, the check valve spring for suction presses the valve body against the valve seat to prevent the raw material fluid from flowing backward from the cylinder portion to the charging tank.

    In the check valve for suction having such a configuration, the following problems occur depending on the properties of the raw material fluid: (1) Slurry in which the raw material fluid is highly viscous or contains solids, fibers, and powders In the case of a fluid, the raw material fluid causes a malfunction of the check valve for suction, and it takes a lot of work to clean the check valve for suction; (2) The particle size of the substance contained in the raw fluid is large The material always creates a gap between the valve body and the valve seat, leading to malfunction of the check valve for suction, and the raw material fluid flows back from the cylinder part to the charging tank during the discharge stroke of the raw material fluid. (3) Due to the repeated opening and closing movement of the valve body, the high-pressure fluid flows back to the check valve for suction at high speed. At this time, the check valve for suction may be damaged by the high-speed flow. In addition, if the specific gravity of the substance contained in the raw material fluid is large, the substance with a large specific gravity will settle and settle at the bottom of the charging tank, so it is necessary to stir in the charging tank using a stirrer. It is necessary to make the material distribution uniform.

Similarly, the check valve for discharge has a valve seat, a spring post, a spring, and a valve body. The valve seat is provided on the cylinder portion side of the second communication hole. The spring post is provided on the atomization nozzle portion side of the second communication hole. The spring has one end fixed to the spring post. The valve body is a metal sphere, and is supported by the spring at the other end of the spring. In the raw material fluid suction stroke, the spring of the check valve for discharge presses the valve element against the valve seat to prevent the raw material fluid from flowing back from the atomizing nozzle portion to the cylinder portion.

   In the check valve for discharge having such a configuration, the following problems occur depending on the properties of the raw material fluid: (1) Slurry in which the raw material fluid is highly viscous or contains solids, fibers, and powders In the case of a fluid, the raw material fluid causes a malfunction in the discharge check valve, and it takes a lot of work to clean the discharge check valve; (2) The particle size of the substance contained in the raw material fluid If it is large, a gap is always formed between the valve body and the valve seat due to the substance, leading to malfunction of the check valve for discharge, and the raw material fluid is transferred from the atomizing nozzle part to the cylinder part in the raw material fluid suction process. (3) Due to repeated opening and closing movements of the valve body, the high-pressure fluid flows back to the check valve for discharge at high speed. At this time, the check valve for discharge may be damaged by the high-speed flow.

The present invention has been proposed in view of the above-described circumstances, and can be easily cleaned, reduced in manufacturing costs, and improved in the efficiency of atomization compared to conventional atomization apparatuses. An object is to provide an atomization processing system including the apparatus and the atomization apparatus.

In order to achieve the above object, the present invention provides a first hollow portion, a first opening opening in the first hollow portion, and the first hollow so as to protrude inward of the first hollow portion. A cylinder auxiliary pipe having a high-pressure seal fixed to a portion; housing the cylinder auxiliary pipe; and being formed between an open end, a closed end, and the cylinder auxiliary pipe and the closed end. A pressurizing chamber that communicates with one hollow portion; a second hollow portion that opens into the second hollow portion; and the first opening and the second opening at the second hollow portion. A cylinder main body having a liquid suction passage communicating with the portion, and a atomizing nozzle communicating with the pressurizing chamber, and a plunger is introduced into the cylinder main body from the opening end, and the first hollow portion And the reciprocating motion in the pressurizing chamber, the raw material fluid passes through the liquid absorption passage and the first hollow portion. When the plunger is fed into the pressurizing chamber while pushing away the high-pressure seal in the state of being taken into the pressurizing chamber from the outside, the pressurizing chamber is shut off from the first hollow portion, thereby The fluid is pressurized in the pressurizing chamber and discharged to the atomizing nozzle. The material contained in the pressurized and discharged raw material fluid is atomized in the atomizing nozzle, and the raw material fluid is pressurized. In the state of being discharged from the chamber, the pressurizing chamber is cut off from the atomizing nozzle by a part of the pressurized and discharged raw material fluid to maintain a vacuum state, and the plunger is separated from the high pressure seal and the first chamber is separated from the high pressure seal. When drawn into one hollow portion, a raw material fluid is taken into the pressurizing chamber from outside through the liquid absorption passage and the first hollow portion.

 In order to achieve the above object, the present invention provides a first hollow portion, a first opening opening in the first hollow portion, and the first hollow portion so as to protrude inward of the first hollow portion. A cylinder auxiliary pipe having a high-pressure seal fixed to one hollow portion; the cylinder auxiliary pipe is accommodated; and is formed between an open end, a closed end, and the cylinder auxiliary pipe and the closed end. A pressurizing chamber communicating with the first hollow portion; a second hollow portion having a pressurizing chamber; a second opening opening in the second hollow portion; and the first opening and the first in the second hollow portion. A cylinder body having a liquid absorption passage that communicates with two openings, a atomization nozzle that communicates with the pressurizing chamber, and a raw material fluid that communicates with the second hollow through the second opening. An injection tank for introducing into the cylinder body and an atomization process communicating with the atomization nozzle A storage tank for storing a fluid, and a plunger that is introduced from the front opening end into the cylinder body and reciprocates in the first hollow portion and the pressurizing chamber. When the plunger is fed into the pressure chamber while pushing away the high-pressure seal in a state where the pressure chamber is taken into the pressure chamber through the first hollow portion, the pressure chamber is moved to the first chamber. The raw material fluid is pressurized in the pressurizing chamber and discharged to the atomizing nozzle, and materials contained in the pressurized and discharged raw material fluid are blocked in the atomizing nozzle. In a state where the material is atomized and stored in the storage tank and the raw material fluid is discharged from the pressure chamber, the pressure chamber is blocked from the atomization nozzle by a part of the pressurized and discharged raw material fluid. The vacuum state And when the plunger moves away from the high-pressure seal and is drawn into the first hollow portion, the raw material fluid is taken into the pressurizing chamber from the charging tank through the liquid absorption passage and the first hollow portion. The atomization processing system characterized by the above is provided.

  According to the present invention, since it is not necessary to provide the check valve for suction and the check valve for discharge in the atomization apparatus and atomization processing system, the constituent members are simplified, and the check valve is not provided. There is an advantage that a situation where the operation does not occur in a state where the suction hole (or the discharge hole) is completely closed (or a state where the suction hole is not completely closed) does not occur. Therefore, the atomization apparatus and the atomization processing system can reduce the manufacturing cost, can be easily washed, and can improve the efficiency of the atomization processing.

It is a conceptual top view of the atomization processing system which concerns on embodiment of this invention. It is sectional drawing of the atomization apparatus which concerns on embodiment of this invention. It is an expanded sectional view of the cylinder main body of the cylinder part of the atomization apparatus which concerns on embodiment of this invention. It is a perspective view of the cylinder auxiliary pipe of the cylinder part of the atomization apparatus which concerns on embodiment of this invention. It is an expanded sectional view of the cylinder auxiliary pipe of the cylinder part of the atomization apparatus concerning the embodiment of the present invention. It is an expanded sectional view of the atomization nozzle part of the atomization apparatus which concerns on embodiment of this invention. It is a figure explaining the first half of the suction stroke of the raw material fluid in the atomization device concerning the embodiment of the present invention. It is a figure explaining the suction | inhalation process latter half of the raw material fluid in the atomization apparatus which concerns on embodiment of this invention. It is a figure explaining the discharge process first half of the raw material fluid in the atomization apparatus which concerns on embodiment of this invention. It is a figure explaining the discharge process latter half of the raw material fluid in the atomization apparatus which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the atomization processing system includes a drive device 1, a charging tank 10, a storage tank 11, and atomization apparatuses 30a, 30b, and 30c. The XY plane is a horizontal plane, and the Z direction is a vertical direction perpendicular to the XY plane.

  The drive device 1 includes crankshafts 2, 2, 2 and a motor 3. The crankshafts 2, 2, 2 are crank portions 5, 5, 5 that are rotatably supported by the crankcases 4, 4, 4, and crank pins 6 a, 6 b that are arranged with a phase difference of 120 degrees in the rotational direction. , 6c. The motor 3 rotates the crankshafts 2, 2, and 2.

  The crankshafts 2, 2, and 2 are connected to the yoke-attached piston shafts 8a, 8b, and 8c via connecting rods 7a, 7b, and 7c connected to the crankpins 6a, 6b, and 6c, respectively.

  When the crankshafts 2, 2 and 2 rotate in the direction of the arrow R, the piston shafts 8a, 8b and 8c reciprocate in the direction of the arrow S due to the swinging of the connecting rods 7a, 7b and 7c. Plungers (pistons) 13 (see FIG. 2), which will be described later, are integrally coupled to the distal ends of the piston shafts 8a, 8b, and 8c.

  The atomization devices 30a, 30b, and 30c are configured by cylinder portions 50a, 50b, and 50c and atomization nozzle portions 100a, 100b, and 100c, respectively. The cylinder portions 50a, 50b, and 50c are connected to the atomizing nozzle portions 100a, 100b, and 100c via high-pressure tubes 120a, 120b, and 120c, respectively. An input tank 10 for supplying the raw material fluid into the atomizers 30a, 30b, and 30c is communicated with the cylinder portions 50a, 50b, and 50c through the pipe 20. A storage tank 11 for storing the atomized raw material product (sample) is communicated with the atomizing nozzle portions 100a, 100b, and 100c through a pipe 21.

  By connecting the connecting rods 7a, 7b and 7c to the crank pins 6a, 6b and 6c eccentrically, the timing at which the piston 13 pressurizes and discharges the raw material fluid charged into the atomizers 30a, 30b and 30c is shifted. The efficiency of the conversion process can be improved.

  Next, the configuration of the atomization apparatus 30 will be described in detail with reference to FIGS. First, the configuration of the cylinder unit 50 will be described, and then the configuration of the atomizing nozzle unit 100 will be described. Note that the atomizers 30a, 30b, and 30c all have the same structure.

  As shown in FIG. 2, the cylinder portion 50 is disposed in the horizontal direction, and as the plunger 13 is pulled out from the cylinder portion 50, the raw material fluid is sucked from the charging tank 10 through the pipe 20, and the plunger 13 is As it is pushed into the portion 50, the sucked raw material fluid is pressurized and discharged to the atomizing nozzle portion 100 through the high-pressure tube 120.

The cylinder part 50 includes a cylinder body 60, a cylinder auxiliary pipe 70, and a fixture 90. As shown in FIG. 3, the cylinder body 60 is made of stainless steel and includes a hollow portion 61, a stepped portion 62, a female screw portion 63, a first communication hole 64, an insertion hole 65, a second communication hole 66, and a male screw portion 67. The hollow portion 61 is closed on the atomizing nozzle side (+ X side) of the cylinder portion 50 and opened on the plunger side (−X side) of the cylinder portion 50. The hollow portion 61 has a first diameter on the atomization nozzle portion side (+ X side) of the cylinder portion 50 and a second diameter on the plunger side (−X side) of the cylinder portion 50 larger than the first diameter. The step portion 62 is formed at a location where the first diameter of the hollow portion 61 changes to the second diameter.

 The female thread part 63 is formed on the upper surface (+ Z side) of the cylinder part 50 on the atomization nozzle part side (+ X side), and is screwed to the male thread part 130a of the nut 130 fixed to the high-pressure tube 120 via the collar 131. Is done. The female screw part 63 has an opening 63a communicating with the female screw part 63 and the first communication hole 64 in the center of the bottom surface, and has a bank part 63b that is inclined from the center of the bottom surface toward the peripheral edge of the bottom surface. The bank part 63b has an apex angle of about 60 °, for example. The first communication hole 64 communicates the hollow portion 61 and the female screw portion 63. When the high pressure tube 120 is fixed to the cylinder portion 50, the first communication hole 64 communicates the hollow portion 61 and the high pressure tube 120.

   The insertion hole 65 is formed on the upper surface (+ Z side) of the cylinder part 50 on the plunger side (−X side). The tube 20 is inserted into the insertion hole 65 and fixed to the cylinder portion 50. Packings 22b and 22b are fitted in the vertical position at the lower end of the tube 20 to be inserted into the insertion hole 65. The second communication hole 66 is formed in the vicinity of the stepped portion 62 of the hollow portion 61, and communicates the hollow portion 61 and the insertion hole 65. When the tube 20 is fixed to the cylinder portion 50, the second communication hole 66 communicates the tube 20 and the hollow portion 61. The male thread portion 67 is formed on the outer peripheral surface of the rear end convex portion (−X side) of the cylinder body 60.

  As shown in FIG. 2, the cylinder auxiliary pipe 70 is made of stainless steel and is accommodated in the hollow portion 61 of the cylinder body 60. As shown in FIGS. 4 and 5, the cylinder auxiliary pipe 70 includes a front end portion 71, a fixed seal 72, a bank portion 73, a cylindrical portion 74, a rear end portion 75, a packing 76, a flange portion 77, a hollow portion 78, and four suction portions. A liquid hole 79 (only two liquid absorption holes are shown in the figure), a high-pressure seal receiving portion 80, a high-pressure seal 81, a bearing seal 82, and a bearing 83 are provided. The front end portion 71 has a ring 71a having an outer diameter larger than the first diameter of the hollow portion 61 and smaller than the second diameter of the hollow portion 61, and a hollow portion 61 extending from the center portion of the ring 71a. A protrusion 71b having the same outer diameter as the first diameter is provided. In a state where the cylinder auxiliary pipe 70 is housed in the cylinder body 60, the protrusion 71 b comes into contact with the inner peripheral surface of the hollow portion 61, and the peripheral surface 71 c of the annular ring 71 a comes into pressure contact with the stepped portion 62 of the hollow portion 61.

The fixed seal 72 is made of plastic, and is fixed to a circular groove formed on the peripheral surface 71c of the annular ring 71a so as to surround the protrusion 71b. In a state where the cylinder auxiliary pipe 70 is housed in the cylinder body 60, the fixed seal 72 is in pressure contact with the stepped portion 62 of the hollow portion 61. The bank part 73 extends from the annular ring 71a of the front end part 71 in a direction opposite to the extending direction of the protrusion 71b. The bank part 73 has an outer diameter that becomes smaller as it extends from the ring 71a. In a state where the cylinder auxiliary pipe 70 is housed in the cylinder main body 60, the opening surface of the second communication hole 66 of the cylinder main body 60 is formed on the upper side surface of the circular ring 71 a of the front end portion 71 of the cylinder auxiliary pipe 70 and the bank portion 73. Opposite the side.

 The cylindrical portion 74 extends from the bank portion 73 and has the same outer diameter as the diameter of the surface where the bank portion 73 is in contact with the cylindrical portion 74. The rear end portion 75 extends from the cylindrical portion 74 and has the same outer diameter as the second diameter of the hollow portion 61. In a state where the cylinder auxiliary pipe 70 is housed in the cylinder body 60, the rear end portion 75 abuts on the inner peripheral surface of the hollow portion 61. The packing 76 is made of rubber, and is fixed to a circular groove formed on the side surface of the rear end portion 75 on the bank portion 73 side. In a state where the cylinder auxiliary pipe 70 is housed in the cylinder body 60, the packing 76 is in pressure contact with the inner peripheral surface of the hollow portion 61. The flange portion 77 extends outward from the rear end portion 75. In a state where the cylinder auxiliary pipe 70 is accommodated in the cylinder body 60, the flange portion 77 is pressed against the open end of the hollow portion 60.

   The hollow portion 78 passes through the front end portion 71, the bank portion 73, the cylindrical portion 74, the rear end portion 75, and the flange portion 77 that are integrally connected. The hollow portion 78 is divided into a front region 78a, a middle region 78b, and a rear region 78c. The front region 78 a passes through the front end portion 71, the bank portion 73, and the front portion of the cylindrical portion 74. The middle region 78 b penetrates the rear portion of the cylindrical portion 74. The four liquid absorption holes 79 are formed on the side surface of the cylindrical portion 74 so as to be separated from each other by 90 ° in the circumferential direction. In a state where the cylinder auxiliary pipe 70 is housed in the cylinder body 60, each liquid suction hole 79 includes the inner peripheral surface of the hollow portion 61, the opening surface of the second communication hole 66, the side surface of the annular ring 71a of the front end portion 71, the bank The liquid absorption passage 84 surrounded by the side surface of the portion 73 and the side surface of the cylindrical portion 74 communicates with the middle region 78 b of the hollow portion 78. An annular protrusion 78d extending to the hollow portion 78 is formed near the boundary between the front region 78a and the middle region 78b. The rear region 78 c passes through the rear end portion 75 and the flange portion 77. The rear region 78c has the same diameter as that of the front region 78a. The front portion of the middle region 78b has the same diameter as the inner diameter of the annular projection 78d. The rear part of the middle region 78b has a diameter that increases from the front part of the middle region 78b toward the rear region 78c.

The high-pressure seal receiving portion 80 is formed in a substantially cylindrical shape. The high-pressure seal receiving portion 80 has an outer diameter that is the same value as the diameter of the front region 78a, a first inner diameter that is larger than the diameter of the plunger 13 (same as the inner diameter of the annular projection 78d), and a second inner diameter that is the same as the diameter of the plunger 13 Have The high-pressure seal receiving portion 80 is inserted into the hollow portion 78 from the front end portion 71 side, and is fixed to the inner peripheral surface of the hollow portion 78 and the annular protrusion 78d. At this time, the first annular surface having the first inner diameter of the high-pressure seal receiving portion 80 abuts on the annular surface of the annular protrusion 78d, and the outer peripheral surface of the high-pressure seal receiving portion 80 abuts against the inner peripheral surface of the hollow portion 78. Touch. The high-pressure seal 81 is made of a thermoplastic plastic such as nylon or polyethylene, and is formed in a truncated cone shape. The high pressure seal 81 has a first surface (−X side) formed in an annular shape and a second surface (+ X side) formed in a concentric double annular shape. The first surface has an inner diameter that is larger than the diameter of the plunger 13 and an outer diameter that is the same as the diameter of the front region 78a. In a cross-sectional view, the side portion of the high pressure seal 81 is divided into two forks as it proceeds from the first surface to the second surface to form an inner ring 81a and an outer ring 81b. The inner annular ring 81a extends inward as it approaches the second surface. The inner ring of the second surface has an inner diameter that is smaller than the diameter of the plunger 13. The outer ring 81b extends outward as it approaches the second surface. The outer ring of the second surface has an outer diameter that is slightly larger than the diameter of the front region 78a. The high pressure seal 81 is inserted into the hollow portion 78 from the front end portion 71 side, and is fixed to the inner peripheral surface of the hollow portion 78 and the high pressure seal receiving portion 80. At this time, the first surface of the high-pressure seal 81 is in contact with the second annular surface having the second inner diameter of the high-pressure seal receiving portion 80, and the outer peripheral surface of the high-pressure seal 81 is in pressure contact with the inner peripheral surface of the hollow portion 78.

 The bearing seal 82 is made of plastic and has a cylindrical shape. The bearing seal 82 has the same inner diameter as the diameter of the plunger 13 and the same outer diameter as the diameter of the rear region 78c. The bearing seal 82 is inserted into the hollow portion 78 from the rear end portion 75 side, and is fixed to the front end (+ X side) of the rear region 78c. At this time, the outer peripheral surface of the bearing seal 82 contacts the inner peripheral surface of the hollow portion 78. The bearing 83 is made of ceramic such as zirconia or plastic, and is formed in a substantially cylindrical shape. The bearing 83 has the same inner diameter as that of the plunger 13 and the same outer diameter as that of the rear region 78c. The bearing 83 is inserted into the hollow portion 78 from the rear end portion 75 side, and is fixed to the rear end (−X side) of the rear region 78c. At this time, the bearing 83 contacts the bearing seal 82, and the outer peripheral surface of the bearing 83 contacts the inner peripheral surface of the hollow portion 78.

   As shown in FIG. 2, the fixture 90 is made of stainless steel and is formed in a cap shape. The fixture 90 has an inner peripheral surface on which a female thread portion 91 is formed. The cylinder auxiliary pipe 70 is fixed to the cylinder main body 60 by inserting the cylinder auxiliary pipe 70 into the cylinder main body 60 and screwing the female screw portion 91 of the fixture 90 into the male screw portion 67 of the cylinder main body 60. The closed end 92 of the fixture 90 has an annular portion 92a that is recessed inward. The annular portion 92 a has an inner diameter that is slightly larger than the diameter of the plunger 13.

  The plunger 13 is integrally connected to the piston shaft 8 and reciprocates in the cylinder portion 50 as the crankshaft 2 rotates. In the configuration in which the cylinder auxiliary pipe 70 is fixed to the cylinder body 60 using the fixing tool 90, the plunger 13 is circled to the left dead center (−X side) A located in the middle region 78 b of the hollow portion 78. It is introduced into the hollow portion 78 of the cylinder auxiliary pipe 70 through the ring portion 92a (see FIG. 9). At this time, the plunger 13 contacts the bearing seal 82 and the inner peripheral surface of the bearing 83. In this state, in the stroke (discharge stroke) in which the plunger 13 moves from the left dead center A to the right dead center (+ X side) C, the plunger 13 slides on the inner peripheral surface of the bearing seal 82 and the bearing 83. The inner ring 81a of the high-pressure seal 81 comes into contact with the high-pressure seal receiving portion 80. When the plunger 13 is further pushed into the cylinder portion 50, the plunger 13 pushes the inner ring 81a and passes through the high pressure seal 80 (see FIG. 10). The position where the plunger 13 reaches the second surface of the high-pressure seal 80 is a change point B at which the cylinder portion 50 changes from the liquid suction process I to the pressure discharge process D (or from the pressure discharge process D to the liquid suction process I). Corresponding to When the plunger 13 is further pushed into the cylinder portion 50, the front region of the hollow portion 61 is slid while sliding on the inner peripheral surface of the high pressure seal receiving portion 80, the inner ring 81a of the high pressure seal 81, the bearing seal 82, and the bearing 83. The right dead center C located in the (pressurizing chamber 130) is reached (see FIG. 7).

In this state, in the stroke (intake stroke) in which the plunger 13 moves from the right dead center C to the left dead center A, the plunger 13 includes the high pressure seal receiving portion 80, the inner ring 81a of the high pressure seal 81, the bearing seal 82, and the bearing. While sliding on the inner peripheral surface of the cylinder 83, the cylinder body 60 retreats from the front region (the pressurizing chamber 130) of the hollow portion 61 and reaches the change point B (see FIG. 8). When the plunger 13 is further pulled out from the cylinder portion 50, the plunger 13 retracts from the high-pressure seal receiving portion 80 and the high-pressure seal 81 and reaches the left dead center A while sliding on the inner peripheral surfaces of the bearing seal 82 and the bearing 83. When the plunger 13 retracts from the high pressure seal 81, the inner ring 81a returns to its original shape and protrudes into the movement path of the plunger 13. Here, the liquid absorption process I is a process in which the raw material fluid is sucked into the plunger portion 50 from the charging tank 10 and corresponds to the movement stroke from the change point B of the plunger 13 to the left dead center A in the latter half of the suction stroke. The pressure discharge process D is a process in which the raw material fluid is pressurized and discharged from the plunger unit 50 to the atomization nozzle unit 100 via the high-pressure tube 120, and the right dead from the change point B of the plunger 13 in the latter half of the discharge process. Corresponds to the travel to point C. Along with the movement of the plunger 13, the raw material fluid moves from the charging tank 10 to the atomizing nozzle portion 100 via the cylinder portion 50 and the high pressure tube 120, and the substance contained in the raw material fluid in the atomizing nozzle portion 100. The manner in which is atomized will be described in detail later.

 As shown in FIG. 6, the atomizing nozzle unit 100 includes a case 101, a first support fitting 102, a second support fitting 103, a first nozzle holder 104, a second nozzle holder 105, an orifice 106, four knock pins 107 ( In the figure, only two dowel pins are shown) and a fixing cap nut 108 is provided. The case 101 is made of stainless steel and has a hollow portion 101a, a stepped portion 101b, a male screw portion 101c, a female screw portion 101d, and four insertion holes 101e (only two insertion holes are shown in the figure). The hollow portion 101a penetrates the case 101 and has a first diameter on the cylinder portion side (+ Z side) of the case 101 and a second diameter on the storage tank side (−Z side) of the case 101 larger than the first diameter. . The step portion 101b is formed at a location where the first diameter of the hollow portion 101a changes to the second diameter. The male screw portion 101 c is formed at the end of the case 101 on the cylinder portion side (+ Z side). The female screw portion 101 d is formed on the inner peripheral surface of the hollow portion 101 a on the storage tank side (−Z side) of the case 101. The four insertion holes 101e are formed at the end of the case 101 on the cylinder part side (+ Z side).

   The 1st support metal fitting 102 consists of stainless steel, and has the internal thread part 102a, the hollow part 102b, and the four insertion holes 102c. The female screw portion 102 a is formed at the cylinder portion side (+ Z side) end of the first support fitting 102 and is screwed into the male screw portion 132 a of the nut 132 fixed to the high-pressure tube 120 via the collar 133. The female screw portion 102a has an opening 102a1 communicating with the female screw portion 102a and the hollow portion 102b at the center of the bottom surface, and has a bank 102a2 inclined from the center portion of the bottom surface toward the peripheral edge portion of the bottom surface. The bank part 102a2 has an apex angle of about 60 °, for example. The hollow portion 102b penetrates the first support fitting 102 and has a diameter (for example, 2.2 mm) that is substantially the same as the inner diameter of the high-pressure tube 120. The four insertion holes 102c are formed in the lower surface of the end of the first support fitting 102 on the cylinder part side (+ Z side). The end surface on the storage tank side (-Z side) of the first support fitting 102 is formed in a tapered shape that tapers toward the tip.

  The second support fitting 103 is made of stainless steel and has a male screw portion 103a, a hollow portion 103b, and a screwing hole 103c. The male screw portion 103 a is formed at the end of the second support fitting 103 on the cylinder portion side (+ Z side). The hollow portion 103b penetrates through the second support fitting 103, and the hollow portion 102b of the first support fitting 102, the pore 104a of the first nozzle holder 104, the pore 105a of the second nozzle holder 105, and the injection port of the orifice 106. The diameter is extremely larger than the diameter of 106a. The screw hole 103 c is formed at the end of the second support fitting 103 on the storage tank side (−Z side). The tube 21 is screwed into the screw hole 103 c and fixed to the second support fitting 103. The end of the second support fitting 103 on the cylinder portion side (+ Z side) protrudes, and the end surface thereof is formed in a tapered shape that tapers toward the tip.

  The first nozzle holder 104 is made of a material harder than stainless steel (for example, a cemented carbide such as tungsten carbide) and has pores 104a. The pore 104a penetrates the first nozzle holder 104 and has a diameter (for example, 4.0 mm) that is approximately twice the diameter of the hollow portion 102b of the first support fitting 102. The end surface on the cylinder part side (+ Z side) of the first nozzle holder 104 has a slightly wider taper angle than the end surface on the storage tank side (−Z side) of the first support fitting 102.

  Similarly, the second nozzle holder 105 is made of a material harder than stainless steel (for example, a cemented carbide such as tungsten carbide) and has pores 105a. The pore 105a penetrates the second nozzle holder 105 and has a diameter (for example, 4.0 mm) that is about twice the diameter of the hollow portion 101a of the first support fitting 101. The end surface on the storage tank side (−Z side) of the second nozzle holder 105 has a slightly wider taper angle than the end surface on the cylinder part side (+ Z side) of the second support fitting 103.

  The orifice 106 is made of a super-hard material (for example, diamond) and has two injection ports 106a. Each injection port 106 a has a diameter (for example, 0.13 mm) smaller than the radius of the pore 104 a of the first nozzle holder 104 and the pore 105 a of the second nozzle holder 105. The four dowel pins 107 are inserted into the four insertion holes 101e of the case 101 and the four insertion holes 102c of the first support fitting 102, and the first support fitting 102 is attached to the case 101 when the first support fitting 102 is attached to the case 101. Used to stop the support metal fitting 102. The fixing cap nut 108 is made of stainless steel and is formed in a cap shape. The fixing cap nut 108 has an inner peripheral surface in which the female screw portion 108a is formed and an end portion in which the opening 108b is formed.

  Next, a method for assembling the atomizing nozzle unit 100 will be described. The orifice 106 is inserted into the hollow portion 101a of the case 101 so as to be set at a predetermined position. Next, the second nozzle holder 104 is inserted into the hollow portion 101 a from the end having the first diameter until the first nozzle holder 104 contacts the orifice 106, and the second nozzle holder 105 is in contact with the orifice 106 until the second nozzle holder 105 contacts the orifice 106. It inserts in the hollow part 101a from the edge part which has a diameter. Then, the first support fitting 102 is inserted into the hollow portion 101 a of the case 101 while the four knock pins 107 are inserted into the four insertion holes 101 e of the case 101 and the four insertion holes 102 c of the first support fitting 102. Finally, the first support fitting 102 is passed through the opening 108b of the fixing cap nut 108, and the male screw portion 101c of the case 101 is screwed into the female screw portion 108a of the fixing cap nut 108. Is fixed to the case 101, and the second support fitting 103 is inserted into the hollow portion 101a of the case 101 while the male screw portion 103a of the second support fitting 103 is screwed into the female screw portion 101d of the case 101. 2 The support metal fitting 103 is fixed to the case 101.

At this time, since the taper seal structure is formed on the contact surface between the first support fitting 102 and the first nozzle holder 104, the tip corner of the first nozzle holder 104 is in close contact with the end face of the first support fitting 102. Thus, the gap is reliably closed and the adhesion is maintained. Similarly, since the taper seal structure is formed on the contact surface between the second support fitting 103 and the second nozzle holder 105, the tip corner of the second nozzle holder 105 is in close contact with the end face of the second support fitting 103. Thus, the gap is reliably closed and the adhesion is maintained.

 With such a configuration, the raw material fluid is introduced from the high-pressure tube 120 into the atomizing nozzle unit 100, and the hollow portion 102 b of the first support fitting 102, the pore 104 a of the first nozzle holder 104, and the injection port 106 a of the orifice 106. The flow velocity increases and is jetted as an ultra-high speed fluid from the jet port 106a. Since the inside of the hollow portion 103b of the second support fitting 103 is at atmospheric pressure, when the raw material fluid reaches the hollow portion 103b through the pore 105a of the second nozzle holder 105, the ultra-high speed jetted from the jet port 106a The pressure applied to the fluid drops instantaneously. At this time, if the hollow portion 103b is filled with the raw material fluid, a jet flow and a swirling flow are generated by a plurality of ultrahigh-speed fluids. Moreover, since the ultrahigh-speed fluid is depressurized instantaneously, a cavitation phenomenon occurs in the hollow portion 103b. Therefore, in the hollow portion 103b, a large shearing force is generated by the interaction between the cavitation induced by the plurality of ultrahigh-speed flows and the swirling flow, and thereby the material contained in the raw material fluid is atomized.

   As shown in FIG. 2, the high-pressure tube 120 is made of stainless steel and includes a first straight portion 121, a second straight portion 122, and a curved portion 123 that connects the first straight portion 121 to the second straight portion 122. The first straight part 121, the second straight part 122, and the bending part 123 are integrally connected. The high-pressure tube 120 has, for example, an inner diameter of 2.1 mm and an outer diameter of 6.35 mm. The high-pressure tube 120 is fixed to the cylinder portion 50 by a taper seal structure using a nut 130 and a collar 131, and is fixed to the atomization nozzle portion 100 by a taper seal structure using a nut 132 and a collar 133.

The first straight part 121 has an end part 121a in which an external thread part 121b and a bank part 121c are formed on the outer peripheral surface. The bank part 121c has an apex angle of about 58 ° to 59 °, for example. When the collar 131 is introduced into the nut 130 while the first straight portion 121 is inserted into the nut 130 so that the bank portion 121c protrudes from the nut 130, the male screw portion 121b of the first straight portion 121 is introduced. Is screwed into a female screw part 131 a formed on the inner peripheral surface of the collar 131. In this state, when the nut 130 is introduced into the internal thread portion 63 of the cylinder body 60 while rotating in the other direction, the internal thread portion 63 is screwed into an external thread portion 130 a formed on the outer peripheral surface of the nut 130. As described above, when the first straight portion 121 is fitted to the cylinder body 60, the corner portion formed at the boundary between the bank portion 121c of the first straight portion 121 and the opening end 121d is in close contact with the central portion of the bottom surface of the female screw portion 63. Thus, the gap is reliably closed and the sealing property is maintained.

 Similarly, the second linear portion 122 has an end portion 122a in which an external thread portion 122b and a bank portion 122c are formed on the outer peripheral surface. The bank part 122c has an apex angle of about 58 ° to 59 °, for example. When the collar 133 is introduced into the nut 132 while rotating the collar 133 in one direction so that the bank portion 122c protrudes from the nut 132, the male screw portion 122b of the second straight portion 122 is inserted. Is screwed into a female screw portion 133 a formed on the inner peripheral surface of the collar 133. In this state, when the nut 132 is introduced into the female threaded portion 102a of the first support fitting 102 while rotating in the other direction, the female threaded portion 102a is screwed into the male threaded portion 132a formed on the outer peripheral surface of the nut 132. Thus, when the 2nd straight line part 122 is fitted to the atomization nozzle part 100, the corner | angular part formed in the boundary of the bank part 122c of the 2nd straight line part 122 and the opening end 122d is a bottom center part of the internal thread part 102a. The gap is reliably closed and the sealing property is maintained.

   Next, referring to FIGS. 7 to 10, as the plunger 13 moves, the raw material fluid moves from the charging tank 10 to the atomization nozzle unit 100 through the cylinder unit 50 and the high pressure tube 120 in a high pressure state. Now, how the material contained in the raw material fluid is atomized by the atomization nozzle unit 100 will be described in detail.

  As shown in FIG. 7, in the stroke (first half of the suction stroke) in which the plunger 13 moves from the right dead center C in the −X direction and reaches the change point B (the first half of the suction stroke), most of the raw material fluid taken into the cylinder portion 50 is Since the plunger 13 is discharged from the cylinder portion 50 at a high pressure and moved to the atomizing nozzle portion 100 via the high-pressure tube 120, the inner peripheral surface of the front region of the hollow portion 61 of the cylinder body 60 and the cylinder auxiliary pipe In the space (pressurizing chamber) 130 surrounded by 70, almost no raw material fluid remains. At this time, since the raw material fluid remains slightly in the high-pressure tube 120, the pressurizing chamber 130 is sealed and is in a vacuum state. For example, when a high-pressure tube 120 having an inner diameter of 2.1 mm is used, about 0.75 cc of raw material fluid remains in the high-pressure tube 120. Since the plunger 13 is pulled with a driving force capable of applying a high pressure of about 150 MPa to the raw material fluid, the plunger 13 can easily retreat from the pressurizing chamber 130 even when the pressurizing chamber 130 is in a vacuum state. Further, the raw material fluid continuously remaining from the high-pressure tube 120 to the atomization nozzle unit 100 is normally discharged from the cylinder unit 50 at a high pressure of about 150 MPa, and in the step in which the plunger 13 moves backward, the high-pressure tube 120 is used. Since the raw material fluid continuously remaining over the atomizing nozzle portion 100 is drawn with a vacuum pressure having a differential pressure of about −0.1 MPa, the amount returned to the cylinder portion 50 is small. Thus, in the first half of the suction stroke, the plunger 13 retracts from the pressurizing chamber 130 while maintaining the vacuum state in the pressurizing chamber 130.

  As shown in FIG. 8, the plunger 13 passes through the high-pressure seal 80 in the stroke in which the plunger 13 moves from the change point B in the −X direction and reaches the left dead center A (second half of the suction stroke, liquid suction step I). At this time, the pressurizing chamber 130 is almost in a vacuum state, but when passing through the high-pressure seal 81, the pressurizing chamber 130 passes through the front region 78a and the middle region 78b of the hollow portion 78 of the cylinder auxiliary pipe 70, and the liquid absorption passageway. Communicate with 84. Therefore, the raw material fluid is drawn into the vacuum state of the pressurizing chamber 130 and taken into the pressurizing chamber 130 from the charging tank 10, and the pressurizing chamber 130 is filled with the raw material fluid.

  As shown in FIG. 9, in the stroke (first half of the discharge stroke) in which the plunger 13 moves from the left dead center A to the + X direction and reaches the change point B (the first half of the discharge stroke), the plunger 13 passes through the high pressure seal 80. As a result of the increase in the volume occupied by, excess raw material fluid is pushed back to the charging tank side. Due to this reverse flow, a substance having a large specific gravity is stirred in the charging tank 10, so that it is not necessary to install a stirrer in the charging tank 10. Since the reverse flow uses a slight stroke of the entire stroke of the plunger 13, the amount of the raw material fluid that flows backward is small, and the influence on the discharge efficiency is small. When the plunger 13 reaches the change point B, the pressurizing chamber 130 is blocked from the liquid absorption passage 84 by the plunger 13, and the raw material fluid does not flow into the pressurizing chamber 130.

  As shown in FIG. 10, the raw material taken into the cylinder part 50 in the stroke in which the plunger 13 moves in the + X direction from the change point B and reaches the right dead center C (the second half of the discharge stroke, the pressure discharge step D). The fluid is pressurized in the pressurizing chamber 130 by the plunger 13 and is discharged from the pressurizing chamber 130 to the atomization nozzle unit 100 through the first communication hole 64 and the high-pressure tube 120. When the raw material fluid is discharged to the atomizing nozzle unit 100 and is injected from the injection port 106a of the orifice 106 as an ultrahigh-speed fluid, the hollow portion 103b generates cavitation and swirl flow induced by a plurality of ultrahigh-speed flows. A large shear force is generated by the interaction. Thereby, the substance contained in the raw material fluid is atomized. In addition, since the first communication hole 64 is provided in the upper part (+ Z side) of the pressurizing chamber 130, air bubbles taken into the pressurizing chamber 130 together with the raw material fluid are discharged to the outside of the pressurizing chamber 130. It is possible to prevent the phenomenon of pressurization failure due to air compression and expansion when the plunger 13 moves forward and backward.

  As described above, since the atomizing device 30 is not provided with the check valve for suction and the check valve for discharge in the cylinder portion 50, the constituent members are simplified, and the check valve is not provided in the suction hole (or the discharge hole). There is an advantage that a situation in which the operation is not performed in a state in which the hole) is completely closed (or in a state in which the hole is not completely closed) does not occur. Moreover, the cylinder part 50 and the atomization nozzle part 100 can be disassembled easily. Therefore, the atomization apparatus 30 can reduce the manufacturing cost, can be easily cleaned, and can improve the efficiency of the atomization process. As described above, since the user can easily maintain the atomization apparatus, the maintenance of the atomization apparatus can be minimized and maintenance of the atomization apparatus can be minimized. Cost can be reduced.

In the atomization apparatus 30, the high pressure seal 81 that contributes to sealing / opening of the pressurizing chamber 130 is accommodated in the cylinder auxiliary pipe 70 that can be easily taken out from the cylinder body 60. Compared with the case where it is directly provided on the inner peripheral surface of the hollow portion 61, the user can easily perform the replacement work of the high pressure seal 81 and the cleaning work with the high pressure seal 81 removed. In other words, when the raw material is changed during a series of atomization processes, if the cylinder auxiliary pipe 20 is reserved as a maintenance part and the cylinder auxiliary pipe 20 is replaced and used, the cleaning work time can be reduced. It can be shortened, the work setup time is shortened, and work can be performed efficiently.

 As disclosed in Japanese Patent No. 4121499, there is known a atomization device that directly closes the opening surface of the communication hole that communicates the charging tank and the cylinder portion with the side surface of the plunger. Compared with the device, the atomization device 30 can prevent the side surface of the plunger 13 from being caught by the opening end portion of the second communication hole 66 and the packing provided on the side surface of the plunger 13 from being destroyed. Have advantages.

   Next, a modification of the atomization apparatus 30 will be described.

  The substance contained in the raw material fluid is not limited to a solid but may be a liquid. When a liquid is selected as the substance, emulsification is performed in the atomizer. In addition, when solid and liquid are selected as the substance, dispersion, crushing, crushing, or kneading is performed in the atomizer.

  As the driving device 1, instead of a plunger pump by rotation of a crankshaft, a plunger pump by pneumatic driving, a plunger pump by hydraulic driving, or a plunger pump by direct motor driving may be used.

  The number of plungers 13 is not limited to three, and the number of plungers may be one, two, or four or more, depending on the processing purpose and installation location.

  The pressure applied to the raw material fluid is not limited to 150 MPa, and can be appropriately changed from several MPa to several hundred MPa, for example, depending on the purpose of processing.

  The diameter of the first communication hole 64 of the cylinder body 60, the inner diameter of the high-pressure tube 120, the diameter of the hollow portion 102b of the first support fitting 102, the diameter of the pore 104a of the first nozzle holder 104, and the diameter of the injection port 106a of the office 106 The diameter of the pore 105a of the second nozzle holder 105 and the diameter of the hollow portion 103b of the second support fitting 103 can be appropriately changed according to the processing purpose.

The number of the ejection ports 106a of the orifice 106 is not limited to two, and can be appropriately changed according to the processing purpose.

 If the high pressure seal 81 can be easily taken out from the cylinder body 60, the cylinder auxiliary pipe 70 may be omitted and the high pressure seal 81 may be provided directly on the cylinder body 60.

 As described above, the raw material fluid injected from the injection port 106a according to the nozzle characteristics of the injection port 106a is included in the raw material fluid due to the interaction between the cavitation induced by instantaneously reducing the pressure in the hollow portion 103b and the high-speed swirling flow. Instead of the atomizing nozzle unit 100 for atomizing the material to be atomized, the high-pressure raw material fluid is converted into a high-speed flow according to the nozzle characteristics of the hole provided inside, and the flow path of the high-speed flow is bent. Then, a atomizing nozzle portion that atomizes a substance contained in the raw material fluid by colliding a high-speed flow with the bent portion may be used. In addition, the raw material fluid injected from the injection port according to the nozzle characteristics of the injection port is instantaneously reduced in pressure in the hollow portion to induce cavitation and high-speed swirling flow in the raw material fluid, and the hollow portion is bent, You may use the atomization nozzle part which makes the bending part collide the raw material fluid which induced the cavitation and the high-speed swirl | vortex flow.

   In addition, the atomization apparatus can be appropriately changed without departing from the technical idea of the present invention.

  The present invention can be used in the following industrial fields.

・ Food industry: Atomization (emulsification) of milk fat, emulsification / dispersion of perfume, emulsification of high calorie emulsion, cell disruption, sterilization, etc. ・ Pharmaceutical industry: Cell disruption, extraction of useful components from fungi, preparation of emulsified preparations, etc.・ Cosmetic industry: Preparation of emulsion, dispersion of pigment, preparation of emulsion without additive, preparation of liposome ・ Chemical industry: Manufacture of emulsion polymerization products, dispersion of toner, preparation of aqueous paint, wet dispersion of organic and inorganic powders・ Electronics industry: Wet dispersion and crushing of organic and inorganic powder ・ Metallurgy industry: Wet dispersion and crushing of inorganic powder ・ Environment industry: Water treatment, sludge treatment ・ Battery industry: Wet dispersion of organic and inorganic powder As described above, the present invention is a useful invention that can be used in various industrial fields.

DESCRIPTION OF SYMBOLS 10 Input tank 11 Storage layer 13 Plunger 20 Pipe 21 Pipe 50 Cylinder part 60 Cylinder main body 61 Hollow part 62 Step part 64 First communication hole 66 Second communication hole 70 Cylinder auxiliary pipe 71 Front end part 73 Bank part 74 Cylindrical part 75 Rear end Part 78 hollow part 79 liquid absorption hole 81 high pressure seal 84 liquid absorption passage 90 fixing tool 100 atomization nozzle part 101 case 101,
102 First support bracket 103 Second support bracket 104 First nozzle holder 105 Second nozzle holder 106 Orifice 108 Cap nut 108 for fixing
120 High-pressure tube 130 Pressurization chamber

Claims (2)

Cylinder auxiliary having a first hollow portion, a first opening opening in the first hollow portion, and a high-pressure seal fixed to the first hollow portion so as to protrude inward of the first hollow portion Tube,
A second hollow that houses the cylinder auxiliary pipe and has an open end, a closed end, and a pressurizing chamber that is formed between the cylinder auxiliary pipe and the closed end and communicates with the first hollow portion. A cylinder body having a portion, a second opening that opens to the second hollow portion, and a liquid absorption passage that communicates the first opening and the second opening at the second hollow portion;
An atomizing nozzle communicating with the pressurizing chamber;
With
The plunger is introduced into the cylinder body from the open end, and reciprocates between the first hollow portion and the pressurizing chamber,
In a state where the raw material fluid is taken into the pressurizing chamber from the outside through the liquid absorption passage and the first hollow portion, when the plunger is fed into the pressurizing chamber while pushing away the high pressure seal, the pressurizing chamber The chamber is shut off from the first hollow portion, whereby the raw material fluid is pressurized in the pressurizing chamber and discharged to the atomization nozzle,
The substance contained in the pressurized and discharged raw material fluid is atomized in the atomization nozzle,
In a state in which the raw material fluid is discharged from the pressurizing chamber, the pressurizing chamber is cut off from the atomizing nozzle by a part of the pressurized and discharged raw material fluid to maintain a vacuum state, and the plunger is in the high pressure state. The atomizing device according to claim 1, wherein when the material fluid is drawn into the first hollow portion away from the seal, the raw material fluid is taken into the pressure chamber from the outside through the liquid absorption passage and the first hollow portion. Cylinder auxiliary having a first hollow portion, a first opening opening in the first hollow portion, and a high-pressure seal fixed to the first hollow portion so as to protrude inward of the first hollow portion Tube,
A second hollow that houses the cylinder auxiliary pipe and has an open end, a closed end, and a pressurizing chamber that is formed between the cylinder auxiliary pipe and the closed end and communicates with the first hollow portion. A cylinder body having a portion, a second opening that opens to the second hollow portion, and a liquid absorption passage that communicates the first opening and the second opening at the second hollow portion;
An atomizing nozzle communicating with the pressurizing chamber;
An introduction tank for introducing a raw material fluid into the cylinder body, which communicates with the second hollow part via the second opening;
A storage tank for storing the atomized raw material fluid communicating with the atomizing nozzle;
A plunger that is introduced from the front opening end into the cylinder body and reciprocates between the first hollow portion and the pressurizing chamber;
With
In a state where the raw material fluid is taken into the pressurizing chamber from the charging tank through the liquid absorption passage and the first hollow portion, when the plunger is fed into the pressurizing chamber while pushing away the high pressure seal, The pressurizing chamber is blocked from the first hollow portion, whereby the raw material fluid is pressurized in the pressurizing chamber and discharged to the atomization nozzle,
The substance contained in the pressurized and discharged raw material fluid is atomized in the atomization nozzle and stored in the storage tank,
In a state in which the raw material fluid is discharged from the pressurizing chamber, the pressurizing chamber is cut off from the atomizing nozzle by a part of the pressurized and discharged raw material fluid to maintain a vacuum state, and the plunger is in the high pressure state. A raw material fluid is taken into the pressurizing chamber from the charging tank through the liquid absorption passage and the first hollow portion when pulled away from the seal into the first hollow portion. .

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