WO2018220896A1 - サイクロン捕集器 - Google Patents
サイクロン捕集器 Download PDFInfo
- Publication number
- WO2018220896A1 WO2018220896A1 PCT/JP2018/002617 JP2018002617W WO2018220896A1 WO 2018220896 A1 WO2018220896 A1 WO 2018220896A1 JP 2018002617 W JP2018002617 W JP 2018002617W WO 2018220896 A1 WO2018220896 A1 WO 2018220896A1
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- WIPO (PCT)
- Prior art keywords
- container
- liquid
- main body
- cyclone
- gas
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/027—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by directing the gas to be cleaned essentially tangential to the liquid surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
- B04C5/04—Tangential inlets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2211—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with cyclones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/008—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with injection or suction of gas or liquid into the cyclone
Definitions
- the present invention relates to a cyclone collector that collects particles using a liquid film.
- a cyclone collector having a container forming a cylindrical space and having a liquid film formed on the inner surface of the container is known.
- particles in the intake gas are collected by adhering to the liquid film (see Patent Document 1).
- the present invention has been made in consideration of such points, and an object of the present invention is to provide a cyclone collector that can reliably collect particles in the intake gas and does not release mist.
- the present invention includes a container having an upper end, a lower end, and a side wall extending between the upper end and the lower end, and formed of a rotating body having a rotation axis, and forming a space therein, and the container
- a liquid film forming portion for forming a liquid film having a certain height on the inner surface of the side wall, an intake hole provided in the container and having an opening opening in the container, and provided in the container.
- An exhaust pipe, and the intake hole is inclined with respect to an orthogonal plane orthogonal to the rotation axis of the container and extends into the space, and the entire opening of the intake hole is a region other than the liquid film.
- a cyclone collector that injects intake gas into the liquid film through the intake hole.
- the present invention is the cyclone collector, wherein the intake hole is provided at the upper end of the container.
- the present invention is the cyclone collector, wherein the liquid film forming part forms the liquid film on the inner surface of the side wall so as to extend upward from the lower end of the container.
- the present invention is a cyclone collector in which a plurality of intake holes are provided in the container.
- the present invention is the cyclone collector, wherein the intake hole is provided in the upper end portion of the container, and the opening portion opens into the space of the container.
- the intake hole is provided in the upper end portion of the container, and has a protruding nozzle protruding from the surface of the upper end portion, and the opening is formed at the tip of the protruding nozzle. It is a vessel.
- the present invention is a cyclone collector in which a liquid supply unit is provided at the lower end of the container.
- the present invention is a cyclone collector in which a liquid supply unit is provided on the side wall of the container.
- particles in the intake gas can be reliably collected and mist can be prevented from being released.
- FIG. 1A is a side view showing a cyclone body of a collection unit according to the first embodiment.
- FIG. 1B is a bottom view of the lid portion taken along line A-A ′ of FIG. 1A.
- FIG. 1C is a view showing the cyclone body, and is a cross-sectional view taken along line B-B ′ of FIG. 1B.
- FIG. 2A is a side view showing a cyclone main body of the collection unit according to the second embodiment.
- FIG. 2B is a bottom view of the lid portion taken along line A-A ′ of FIG. 2A.
- 2C is a view showing the cyclone main body, and is a cross-sectional view taken along line B-B ′ of FIG. 2B.
- FIG. 1A is a side view showing a cyclone body of a collection unit according to the first embodiment.
- FIG. 1B is a bottom view of the lid portion taken along line A-A ′ of FIG. 1A.
- FIG. 3A is a side view showing the cyclone main body of the collection unit according to the third embodiment.
- FIG. 3B is a bottom view of the lid portion taken along line A-A ′ of FIG. 3A.
- 3C is a view showing the cyclone main body, and is a cross-sectional view taken along line B-B ′ of FIG. 3B.
- FIG. 4A is a perspective view showing a cyclone main body.
- 4B is a perspective view showing the cyclone body viewed from an angle different from that in FIG. 4A.
- FIG. 5 is a schematic diagram showing the configuration of the entire measuring apparatus in which the cyclone collector according to the present invention is incorporated.
- FIG. 6A is a schematic diagram showing a state in which a fluorescent substance is bound to detection target particles.
- FIG. 6B is a schematic diagram showing a state in which antibody aggregated particles are bound to detection target particles.
- FIG. 7 is a schematic diagram showing a modification of the configuration of the droplet forming unit in the measurement apparatus.
- FIG. 8 is a perspective view showing a configuration of a droplet sorting unit in the measuring apparatus.
- FIG. 9 is an internal configuration diagram illustrating a configuration of a measurement unit in the measurement apparatus.
- FIG. 10 is a side view showing the cyclone main body of the collection unit according to the fourth embodiment.
- FIG. 11 is a side view showing the cyclone main body of the collection unit according to the fifth embodiment.
- the cyclone body 21 of the cyclone collector 12 according to the present invention is composed of a rotating body having a rotation axis (also referred to as an axis) 21A.
- the terms “upper”, “upper”, “lower”, and “lower” refer to the case where the cyclone body 21 of the cyclone collector 12 according to the present invention is installed such that the rotation axis 21A extends in the vertical direction. Means “upper”, “upper”, “lower”, and “lower” (see FIGS. 1A to 1C).
- FIG. 5 is a schematic diagram showing the configuration of the measuring apparatus.
- the measurement apparatus 10 detects the detection target particle based on the fluorescence intensity of the droplet will be described as an example. However, it is not limited to this.
- the measurement apparatus 10 may be limited to measuring the fluorescence intensity of the droplet.
- the user or another device determines whether or not the detection target particles are contained in the inspection target gas.
- the detection target particles are, for example, viruses, bacteria, pollen, toxic substances, and the like. However, the detection target particles are not limited to these as long as the fluorescent substance can specifically bind thereto.
- the measuring apparatus 10 includes a dust removing unit 11, a main pipe 18, a collecting unit (also referred to as a cyclone collecting device) 12 according to the present invention, and a droplet forming unit. 13, a droplet sorting unit 14, a measuring unit 15, a liquid recovery unit 16, and a suction pump 17.
- the main pipe 18 is an airflow guideway.
- the dust removing unit 11 is disposed on the upstream side of the airflow guided by the main pipe 18.
- the suction pump 17 is an airflow forming mechanism that forms an airflow inside the main pipe 18, and is disposed on the downstream side of the airflow guided by the main pipe 18. In other words, the suction pump 17 forms an airflow that flows from the dust removing unit 11 to the suction pump 17 in the main pipe 18.
- an air supply pump may be provided upstream of the dust removing unit 11. In this case, compressed air may be supplied from the air supply pump into the main pipe 18.
- the droplet forming unit 13, the droplet sorting unit 14, the measuring unit 15, and the liquid recovery unit 16 are provided in the main pipe 18 in this order between the dust removing unit 11 and the suction pump 17. ing.
- the dust removing unit 11 has an airflow resistance of a degree necessary for forming aerosol droplets in the main pipe 18.
- the dust removing unit 11 can supply a clean gas by capturing particles that affect the measurement.
- the collection unit 12 composed of a cyclone collector will be described.
- the collection unit 12 collects the detection target particles in the inspection target gas in the liquid and binds the detection target particles in the liquid to a fluorescent substance that specifically binds to the detection target particles. ing.
- the collection unit 12 includes a cyclone main body (also referred to as a container) 21, a gas introduction unit 22 for introducing gas into the cyclone main body 21, and a cyclone main body 21. And a liquid introduction part 23 for introducing a liquid into the interior.
- a cyclone main body also referred to as a container
- a gas introduction unit 22 for introducing gas into the cyclone main body 21, and a cyclone main body 21.
- a liquid introduction part 23 for introducing a liquid into the interior.
- the cyclone main body 21 has a prefix conical inner surface (hereinafter referred to as a wall surface) and is oriented so that the end portion on the small diameter side is positioned below the end portion on the large diameter side.
- the gas introduction part 22 is provided in the upper part of the cyclone body 21 so as to extend in the tangential direction of the wall surface of the cyclone body 21, and is airtightly connected to the coarse dust removal part 19.
- the tangential direction of the wall surface refers to a case where the cyclone body 21 is cut in a horizontal direction that is perpendicular to the axis at a portion where the introduced gas contacts (collides) with the wall surface of the cyclone body 21 as described later. It is the tangential direction of the circle that can be made.
- the coarse dust removing unit 19 allows the measurement target particles to pass through and captures relatively large particles such as dust and fiber waste.
- the gas introduced from the coarse dust removing unit 19 through the gas introducing unit 22 into the cyclone main body 21 is guided along the wall surface of the cyclone main body 21 so as to turn in the circumferential direction.
- the liquid introduction part 23 is provided in the liquid introduction pipe 23b, a liquid introduction pipe 23b in which one end is connected to the lower part of the tank 23a and the other end is connected to the wall surface of the cyclone body 21.
- the tank 23a contains a liquid containing a fluorescent substance.
- the fluorescent substance is, for example, a fluorescently labeled antibody.
- the fluorescence-labeled antibody Y specifically binds to a specific detection target particle P using an antibody antigen reaction.
- the fluorescent substance may be antibody aggregated particles A whose surface is modified with a plurality of fluorescently labeled antibodies Y as shown in FIG. 6 (b).
- the fluorescently labeled antibody Y on the surface of the antibody aggregated particle A specifically binds to a specific detection target particle P using an antibody antigen reaction.
- the plurality of detection target particles P can be aggregated via the antibody aggregated particles A. Therefore, the volume density of the fluorescently labeled antibody Y is increased, and the fluorescence intensity can be increased.
- the other end of the liquid introduction pipe 23 b is connected to a height position lower than the gas introduction part 22 on the wall surface of the cyclone main body 21.
- the one end of the liquid introduction tube 23b is arranged at a height position higher than the other end.
- the liquid introduction part 23 is not limited to such a configuration, for example, has a syringe pump containing a liquid containing a fluorescent substance, and the tip of the syringe is connected to the wall surface of the cyclone main body 21, A liquid containing a fluorescent substance may be introduced into the cyclone main body 21 by pressurizing the inside of the syringe with a piston.
- suction / exhaust gas is introduced into the upper part of the cyclone main body 21 by sucking and exhausting the inside of the cyclone main body 21 to reduce the pressure, and introducing gas so as to turn in the circumferential direction from the gas introduction part 22 by the differential pressure.
- a portion 24 is provided.
- the suction exhaust section 24 includes a suction exhaust pipe (also referred to as an exhaust pipe) 24b that is coaxially inserted in the upper part of the cyclone main body 21, and a suction exhaust pump 24a provided in the suction exhaust pipe 24b. Yes.
- a suction exhaust pipe also referred to as an exhaust pipe
- a suction exhaust pump 24a provided in the suction exhaust pipe 24b.
- the suction / exhaust pump 24a When the suction / exhaust pump 24a is operated, the inside of the cyclone main body 21 is sucked and exhausted through the suction / exhaust pipe 24b and depressurized. Due to the pressure difference between the inside of the cyclone main body 21 and the outside, the gas outside the cyclone main body 21 is reduced. The gas is introduced from the gas introduction part 22 into the cyclone main body 21 through the coarse dust removing part 19. The gas introduced into the cyclone main body 21 is guided along the wall surface of the cyclone main body 21 so as to descend while turning in the circumferential direction, that is, to form a spirally turning airflow. At this time, since the specific gravity of the detection target particles in the gas is relatively large, the particles are separated to the wall surface side of the cyclone main body 21 by centrifugal force.
- the gas component having a relatively low specific gravity reverses the flow in the lower part of the cyclone body 21 due to the truncated conical shape of the wall surface of the cyclone body 21 and forms an upward flow on the center axis side of the cyclone body 21.
- the air is discharged to the outside through the suction exhaust pipe 24b.
- the liquid introduced from the liquid introduction part 23 into the cyclone main body 21 is pushed outward by the airflow swirling in the circumferential direction, and forms a liquid film in a film shape along the wall surface (inner surface) of the cyclone main body 21.
- the liquid introduction part 23 functions as a liquid film forming part that forms a liquid film on the inner surface of the cyclone main body 21.
- a water level detection unit 25 that detects the water level of the liquid formed into a film shape is provided on the wall surface of the cyclone main body 21.
- the flow rate control unit 23 c of the liquid introduction unit 23 controls the flow rate based on the detection result of the water level detection unit 25.
- the water level detection unit 25 has a pair of electrodes exposed inside the cyclone main body 21 and a measurement unit that measures the electrical conductivity between the electrodes.
- the pair of electrodes When the liquid level is higher than the height position of the pair of electrodes, the pair of electrodes are energized through the liquid, and the conductivity is relatively high.
- the pair of electrodes are insulated and the conductivity becomes relatively low.
- a measurement result when the liquid water level is higher than the height position of the pair of electrodes and a measurement result when the liquid level is low are obtained in advance by experiments, and a value between the two measurement results is determined as a threshold value.
- the liquid water level is higher than the height position of the pair of electrodes, and when the measurement result of the measurement unit is lower than the threshold value, the liquid water level is higher than the height of the pair of electrodes. Judged to be lower than the position.
- the flow rate control unit 23c controls the liquid flow rate until the liquid level becomes higher than the height position of the pair of electrodes. It has come to increase. Thereby, it can prevent that the contact area with respect to the gas of the liquid inside the cyclone main body 21 reduces by liquid sending, evaporation, etc.
- FIG. 1
- a liquid supply unit 26 is connected to the lower side of the cyclone main body 21.
- the liquid supply unit 26 is provided with a liquid feed pump 27.
- the inside of the cyclone main body 21 is depressurized by the suction / exhaust unit 24, but is sent from the inside of the cyclone main body 21 via the liquid supply unit 26 by sending the liquid in the liquid supply unit 26 under pressure by the liquid feed pump 27.
- the liquid can be continuously and stably supplied to the droplet forming unit 13.
- the collection unit 12 may be provided with a heating mechanism for heating the liquid.
- a heating mechanism for heating the liquid.
- the fluorescent substance in the liquid is activated by heating the liquid to near body temperature (about 35 ° C.), for example.
- the reaction rate can be increased.
- the collection unit 12 may be provided with a cooling mechanism (not shown) for cooling the liquid.
- a cooling mechanism for cooling the liquid.
- the liquid is cooled to, for example, around body temperature (about 35 ° C.) to activate the fluorescent substance in the liquid and react. You can increase the speed.
- the droplet forming unit 13 is configured to form aerosol droplets from the liquid supplied from the collecting unit 12. More specifically, the droplet forming unit 13 is in the form of an aerosol using at least one of a nebulizer, electrospray, two-fluid nozzle, piezoelectric element, ultrasonic wave, and decompression process from the liquid supplied from the collecting unit 12. Are formed (two-fluid nozzle).
- the droplet forming unit 13 has a throttle portion 18 a in which the diameter of the main pipe 18 is rapidly narrowed, and the end portion of the liquid supply unit 26 is the throttling portion. It is inserted coaxially inside the portion 18a.
- the speed of the airflow increases.
- a negative pressure is generated at the end of the liquid supply unit 26 by the high-speed airflow flowing through the throttle portion 18a, and the liquid in the liquid supply unit 26 is sucked and torn by this negative pressure.
- aerosol droplets are formed from the liquid supplied from the liquid supply unit 26.
- the end of the liquid supply unit 26 is coaxially inserted inside the throttle portion 18a.
- the present invention is not limited to this.
- the end of the portion 26 may be connected in a direction perpendicular to the throttle portion 18a.
- the droplet sorting unit 14 sorts droplets having a particle size less than a predetermined value from the droplets supplied from the droplet forming unit 13.
- a spray chamber that sorts droplets having a particle size less than a predetermined value using inertial force can be used.
- a spray chamber that sorts droplets having a particle size less than a predetermined value using inertial force
- it is one of the group consisting of a cyclone spray chamber, a Scott spray chamber, and an inertial branch spray chamber.
- Such a spray chamber itself is known in the technical field of inductively coupled plasma (ICP) emission spectroscopic analysis, and is exemplified in, for example, JIS K0133.
- the spray chamber does not have the effect of selecting droplets having a particle size that can be decomposed by inductively coupled plasma using the spray chamber itself.
- FIG. 8 is a schematic diagram showing an example of the configuration of the droplet sorting unit 14. 8 is a cyclone spray chamber, and includes a central chamber body 14a having a cylindrical inner surface, and an upper chamber body 14b having a frustoconical inner surface connected to the upper end of the central portion. And a lower chamber body 14c having a frustoconical inner surface connected to the lower end portion of the central portion.
- the main pipe 18 is connected to the inner surface of the central chamber body 14a so as to extend in the tangential direction of the inner surface.
- the air flow including droplets introduced into the central chamber body 14a through the main pipe 18 is guided along the inner surface of the central chamber body 14a by the inertial force and swirls in the circumferential direction.
- a droplet having a particle size of a predetermined value or more is separated to the inner surface side of the central chamber body 14a by centrifugal force, and collides with and adheres to the inner surface.
- droplets having a particle size of a predetermined value or more are removed from the air flow, and droplets having a particle size of less than the predetermined value ride on the air flow and are supplied to the measurement unit 15 from the upper side of the upper chamber body 14b. It has become.
- a droplet (liquid) attached to the inner surface of the central chamber body 14a flows down to the lower chamber body 14c due to gravity, and is discharged from the lower side of the lower chamber body 14c to the outside.
- the adhering droplet (liquid) evaporates, so there is no need to provide a drainage mechanism.
- the upper limit of the particle size of the droplets sorted by the spray chamber is the mechanical size such as the size and shape of the spray chamber, the flow velocity of the air flow, etc. Correlates with parameters. Therefore, by appropriately selecting the mechanical parameters such as the shape and size of the spray chamber and the flow velocity of the airflow, it is possible to set the upper limit of the particle size of the droplets sorted by the spray chamber to a desired value. is there.
- the particle size of the droplets selected by the spray chamber can be appropriately selected depending on the measurement object and the measurement purpose. However, when a virus or bacteria is the measurement object, the particle diameter is preferably 50 ⁇ m or less, and 20 ⁇ m or less. Is more preferable.
- FIG. 9 is a schematic diagram illustrating an example of the configuration of the measurement unit 15.
- the measurement unit 15 irradiates the droplet with light and measures the fluorescence intensity of the droplet.
- the measurement unit 15 is connected to the main pipe 18 and forms, for example, a rectangular case that forms a flow space for airflow including droplets sorted by the droplet sorting unit 14. It has a body 56. Light transmitting windows 52a and 52b made of quartz parallel to each other are disposed on, for example, the upper and lower (or left and right) surfaces of the case body 56 facing each other.
- a light emitting unit 51 for irradiating the case body 56 with laser light having a wavelength deviating from the wavelength of fluorescence emitted from the fluorescent material is provided.
- an optical filter 53 that blocks light having a wavelength that deviates from the wavelength of the fluorescence emitted from the fluorescent material is provided outside the other light transmission window 52b.
- a light receiving portion 54 that receives the fluorescence of the fluorescent material and converts it into an electrical signal is provided on the outer side.
- the light receiving unit 54 is, for example, a photomultiplier tube, and outputs, for example, a current having a signal level corresponding to the intensity of light received from the optical filter 53 to the light receiving output measuring unit 55.
- the light reception output measuring unit 55 converts current into voltage, compares the voltage signal Ia indicating the converted voltage with a preset threshold Is, and the voltage signal Ia is larger than the threshold Is.
- the detection target particle detection alarm is notified or displayed on a display unit (not shown).
- the threshold value Is is determined as follows. That is, the threshold value Is includes the fluorescence intensity when the droplet formed by the droplet forming unit 13 passes through the case body 56 when the detection target particle does not exist in the inspection target gas, and the inspection target gas. Between the fluorescence intensity when the droplet formed by the droplet forming unit 13 passes through the case body 56 in a state where the detection target particle is included in the detection target particle and the fluorescent substance is bound to the detection target particle.
- the fluorescence intensity when the detection target particle does not exist in the gas to be inspected is the fluorescent substance attached to the dust included in the gas passing through the case body 56 or the fluorescent substance included in the droplet not including the detection target particle. , Corresponding to the intensity of fluorescence from.
- the fluorescent substance specifically binds to the detection target particle. As a result, in general terms, due to the presence of the detection target particles, the density of the fluorescent substance becomes higher than when there is no detection target particles, and a difference in fluorescence intensity corresponding to the presence or absence of the detection target particles occurs.
- a liquid recovery unit 16 made of, for example, a mesh body for capturing a droplet that has passed through the measurement unit 15 is provided on the downstream side of the measurement unit 15, and a suction pump 17 is provided on the downstream side of the liquid recovery unit 16, and the gas that has passed through the liquid recovery unit 16 is external to the measurement apparatus 10 via, for example, a filter for adsorbing and removing detection target particles (not shown). Exhausted.
- the liquid recovery unit 16 is provided with a drainage mechanism. However, when the number of liquid droplets (liquid) passing through the liquid recovery unit 16 is sufficiently small, the liquid droplets (liquid) evaporate. There is no need to provide.
- the collecting unit 12 including a cyclone collector incorporated in the measuring apparatus 1 will be described.
- FIG. 1A is a side view showing the cyclone main body 21 of the collection unit 12
- FIG. 1B is a bottom view of the lid portion taken along line AA ′ of FIG. 1A
- FIG. 1C is a diagram showing the cyclone main body 21.
- 1B is a cross-sectional view taken along line BB ′ of FIG. 1B.
- 4A and 4B are perspective views showing the cyclone body.
- the collection unit 12 includes a cyclone main body (also referred to as a container) 21, a gas introduction unit 22 for introducing gas into the cyclone main body 21, and a cyclone main body 21 by introducing a liquid into the cyclone main body 21.
- 21 includes a liquid introduction portion (also referred to as a liquid film formation portion) 23 for forming a liquid film 40 on the inner surface.
- a cyclone main body (container) 21 of the collection unit 12 includes a container main body 31 that forms a prefix conical space 35 therein, and a container
- the lid 32 covers the upper opening of the main body 31, and the liquid introduction pipe 23 b of the liquid introduction section 23 is connected to the side of the container main body 31 of the cyclone main body 21.
- the cyclone main body 21 having the container main body 31 and the lid portion 32 is composed of a rotating body having a rotation axis 21A, and is arranged so that the axis 21A extends in the vertical direction.
- the cyclone main body 21 is not limited to the above-described structure having the container main body 31 and the lid portion 32 that covers the upper opening of the container main body 31, and the container main body 31 and the lid portion 32 are completely formed by a 3D printer or the like.
- An integrally formed structure may be adopted.
- the lid portion 32 of the cyclone main body 21 constitutes the upper end portion of the cyclone main body 21, and the prefix conical side wall 31 b of the container main body 31 constitutes the side wall 31 b of the cyclone main body 21.
- the lower end 31 a of the container main body 31 constitutes the lower end 31 a of the cyclone main body 21.
- the gas introduction part 22 is connected to the lid part 32 constituting the upper end part of the cyclone main body 21, and the connection end 33 b of the intake hole 33 formed in the lid part 32 is connected to the gas introduction part 22.
- four gas introducing portions 22 are connected to the entire circumference of the lid portion 32 along the tangential direction of the wall surface of the cyclone main body 21, and each gas introducing portion 22 extends over the entire circumference of the lid portion 32. And 90 ° apart from each other. For this reason, four intake holes 33 are provided in the lid portion 32 so as to correspond to the four gas introduction portions 22 and spaced apart by 90 °.
- the tangential direction of the wall surface means a tangential direction of a circle formed when the cyclone main body is cut in the horizontal direction, which is perpendicular to the axis at the portion where the introduced gas abuts (collises) with the wall surface of the cyclone main body 21.
- an exhaust pipe 24 b is attached to the center position of the lid portion 32, and the exhaust pipe 24 b extends upward from the space 35 of the container body 31 through the lid portion 32. Furthermore, a liquid supply unit 26 is provided at the lower end 31 a of the container main body 31 of the cyclone main body 21, and the liquid supply unit 26 is connected to the droplet forming unit 13 via a liquid feed pump 27.
- Each intake hole 33 extends in the lid portion 32 at an inclination angle ⁇ of 5 ° to 15 ° downward with respect to an orthogonal surface 21B orthogonal to the axis 21A of the cyclone main body 21.
- Each intake hole 33 has an opening 33 a that opens into the space 35 of the container body 31. The opening 33 a does not protrude downward from the lower surface 32 a of the lid portion 32 and opens in the same plane as the lower surface 32 a.
- a liquid film 40 is formed on the inner surface of the cyclone main body 21 by the liquid introduced from the liquid introduction pipe 23b of the liquid introduction portion 23.
- the liquid film 40 extends from the lower end to the upper end of the container main body 31, that is, the container main body 31.
- the liquid film 40 does not reach the lower surface 32 a of the lid portion 32, but extends from the lower end portion 31 a to the side wall 31 b of the container main body 31 immediately below the lid portion 32.
- the opening 33 a of the intake hole 33 provided in the lid 32 is the lower surface 32 a of the lid 32 and opens at a position separated from the side wall of the container body 31. For this reason, the liquid film 40 on the inner surface of the container body 31 is not entrained by the intake gas from the opening 33a of the intake hole 33, so that the liquid film is not entrained by the intake gas and mist is not generated.
- the intake hole 33 extends downward with respect to the orthogonal surface 21B of the cyclone body 21, the intake gas ejected from the intake hole 33 strikes the liquid film 40 formed on the inner surface of the opposing container body 31. Will be in touch. As a result, the particles contained in the intake gas can be reliably attached to the liquid film 40 and the liquid film 40 can reliably collect the particles.
- the intake gas injected into the cyclone main body 21 from the intake hole 33 is injected along the tangential direction of the wall surface of the cyclone main body 21 at the portion where the gas contacts the liquid film, A gas flow that spirally rotates in the circumferential direction is formed in the cyclone body 21.
- the particles in the intake gas are directed toward the side wall 31b of the container body 31 by centrifugal force.
- the particles in the intake gas ejected from the intake holes 33 can be collected after being brought into contact with the liquid film 40 and adhered to the liquid film 40.
- a gas for example, the atmosphere
- the suction pump 17 is taken into the main pipe 18 via the dust removing unit 11 by the suction pump 17, and the droplet forming unit 13, the droplet sorting unit 14, and the measuring unit are collected.
- 15 and the liquid recovery unit 16 are formed in this order, and are exhausted through the suction pump 17 and a filter (not shown).
- a gas for example, the atmosphere
- the cyclone is supplied from the gas introduction unit 22. It is introduced into the main body 21.
- a liquid containing a fluorescent material is introduced into the cyclone main body 21 from the liquid introduction part 23.
- the gas introduced from the gas introduction part 22 into the cyclone main body 21 is guided along the wall surface of the cyclone main body 21 so as to be swung in the circumferential direction to form a spiral air flow inside the cyclone main body 21. .
- the liquid introduced into the cyclone main body 21 from the liquid introduction part 23 is pushed outward in the radial direction by the spiral airflow, and is formed into a film shape along the wall surface of the cyclone main body 21.
- the particles to be detected contained in the gas are separated on the wall surface side of the cyclone main body 21 by centrifugal force and collected in a liquid formed into a film shape.
- the fluorescent substance contained in the liquid specifically binds to the collected detection target particles.
- the intake gas introduced from the gas introduction part 22 passes through the intake hole 33 provided in the lid part 32, and enters the space 35 of the container body 31 from the opening 33 a of the intake hole 33. Erupted.
- the intake gas ejected from the opening 33a of the intake hole 33 contacts the liquid film 40 formed on the inner surface of the container main body 31, the particles in the intake gas are reliably attached to the liquid film 40 and collected. be able to.
- the liquid that has collected the detection target particles on the wall surface of the cyclone main body 21 gradually flows downward due to gravity, and then liquid is supplied from the lower side of the cyclone main body 21 through the liquid supply unit 26 by the operation of the liquid feed pump 27. It is continuously supplied to the droplet forming unit 13.
- the liquid supplied from the collection unit 12 is drawn out from the end of the liquid supply unit 26 by a high-speed airflow flowing through the throttle portion 18 a of the main pipe 18, and becomes an aerosol droplet. Molded.
- the formed aerosol droplets ride on the air flow in the main pipe 18 and are supplied to the droplet sorting unit 14.
- the air flow including the droplets supplied from the droplet forming unit 13 is guided along the cylindrical inner surface of the central chamber body 14 a, thereby causing the air flow in the circumferential direction.
- the droplets having a particle size included in the airflow are not less than a predetermined value, are separated to the inner surface side of the central chamber body 14a by centrifugal force, and collide with and adhere to the inner surface.
- the droplet having a particle size of less than a predetermined value rises while turning in the circumferential direction together with the air flow, and is supplied to the measuring unit 15 from the upper side of the upper chamber body 14b.
- the measurement unit 15 irradiates the droplets selected by the droplet selection unit 14 with light, and measures the fluorescence intensity of the droplets irradiated with the light. Specifically, the droplet guided through the main pipe 18 is irradiated with light, and the fluorescence intensity is measured. Moreover, after that, for example, the measurement unit 15 determines whether or not the detection target particles are included in the gas to be inspected by comparing the measured fluorescence intensity with a threshold value. In other words, the measurement unit 15 detects the detection target particles from the inspection target gas.
- the light emitting unit 51 irradiates the inside of the case body 56 through which the droplets flow with ultraviolet laser light.
- the fluorescent substance in the droplet is excited by the ultraviolet laser light and emits fluorescence.
- the ultraviolet laser light is shielded by the optical filter 53, and light having a fluorescence wavelength is selectively detected by the light receiving unit 54.
- the received light intensity detected by the light receiving unit 54 is proportional to the volume density of the fluorescent material in the droplet formed by the droplet forming unit 13.
- the fluorescence intensity detected by the light receiving unit 54 is larger than the threshold value Is, and the received light output measuring unit 55 detects the detection target. A particle detection alarm is triggered.
- the detection target particle does not exist in the droplet formed by the droplet forming unit 13, even if fine dust in the atmosphere is taken into the droplet formed by the droplet forming unit 13, Even if the fluorescent substance adheres to the dust, the density of the fluorescent substance is much smaller than the density of the fluorescent substance bound to the detection target particles. For this reason, the received light intensity detected by the light receiving unit 54 is smaller than a preset threshold value Is.
- the liquid droplets that have passed through the measurement unit 15 are separated into gas and liquid by the liquid recovery unit 16, and the liquid is recovered.
- the gas is exhausted to the outside of the measuring apparatus 10 by the suction pump 17 provided on the downstream side of the liquid recovery unit 16.
- FIG. 2A is a side view showing the cyclone main body 21 of the collection unit 12
- FIG. 2B is a bottom view of the lid portion taken along line AA ′ of FIG. 2A
- FIG. 2C is a diagram showing the cyclone main body 21.
- FIG. 2B is a cross-sectional view taken along the line BB ′ in FIG. 2B.
- the collection unit 12 includes a cyclone main body (also referred to as a container) 21, a gas introduction unit 22 for introducing gas into the cyclone main body 21, and a cyclone main body 21 by introducing a liquid into the cyclone main body 21.
- 21 includes a liquid introduction portion (also referred to as a liquid film formation portion) 23 for forming a liquid film 40 on the inner surface.
- the cyclone body (container) 21 of the collection unit 12 includes a container body 31 that forms a prefix conical space 35 therein, and an upper opening of the container body 31.
- the liquid introduction pipe 23b of the liquid introduction part 23 is connected to the container main body 31 side part of the cyclone main body 21.
- the gas introduction part 22 is connected to the lid part 32 of the cyclone main body 21, and the connection end 33 b of the intake hole 33 formed in the lid part 32 is connected to the gas introduction part 22.
- eight gas introducing portions 22 are connected to the entire circumference of the lid portion 32 along the tangential direction of the wall surface of the cyclone main body 21, and each gas introducing portion 22 extends over the entire circumference of the lid portion 32. And 45 ° apart from each other.
- eight intake holes 33 are provided in the lid portion 32 so as to correspond to the eight gas introduction portions 22 by 45 ° apart from each other.
- an exhaust pipe 24 b is attached to the lid portion 32, and the exhaust pipe 24 b extends upward from the space 35 of the container body 31 through the lid portion 32.
- Each intake hole 33 extends in the lid portion 32 at an inclination angle ⁇ of 45 ° to 60 ° downward with respect to an orthogonal surface 21B orthogonal to the axis 21A of the cyclone main body 21.
- Each intake hole 33 has an opening 33 a that opens into the space 35 of the container body 31. The opening 33 a does not protrude downward from the lower surface 32 a of the lid portion 32 and opens at the same position as the lower surface 32 a.
- a liquid film 40 is formed on the inner surface of the cyclone main body 21 by the liquid introduced from the liquid introduction pipe 23b of the liquid introduction portion 23.
- the liquid film 40 extends from the lower end to the upper end of the container main body 31, that is, the container main body 31.
- the liquid film 40 does not reach the lower surface 32 a of the lid portion 32, but extends from the lower end portion 31 a to the side wall 31 b of the container main body 31 immediately below the lid portion 32.
- the opening 33 a of the intake hole 33 provided in the lid 32 is the lower surface 32 a of the lid 32 and opens at a position separated from the inner surface of the container body 31.
- the liquid film 40 on the inner surface of the container body 31 is not entrained by the intake gas from the opening 33a of the intake hole 33, and this prevents the liquid film from being entrained by the intake gas and generating moisture mist. .
- the intake hole 33 extends downward with respect to the orthogonal surface 21B of the cyclone body 21, the intake gas ejected from the intake hole 33 strikes the liquid film 40 formed on the inner surface of the opposing container body 31. Will be in touch. For this reason, particles contained in the intake gas can be reliably attached to the liquid film 40, and the particles can be reliably collected by the liquid film 40.
- the intake gas ejected from the intake hole 33 is brought into contact with the liquid film 40 and the particles in the intake gas are adhered to the liquid film 40 and then reliably collected. Can do.
- the angle ⁇ of the intake holes 33 can be increased to increase the number of intake holes 33 and the amount of gas that can be processed at a time can be increased.
- the collision position of the airflow to the wall surface is downward.
- FIGS. 3A to 3C a collecting unit 12 including a cyclone collector according to a third embodiment will be described.
- FIG. 3A is a side view showing the cyclone main body 21 of the collection unit 12
- FIG. 3B is a bottom view of the lid portion taken along line AA ′ of FIG. 3A
- FIG. 3C is a diagram showing the cyclone main body 21.
- FIG. 3B is a sectional view taken along line BB ′ of FIG. 3B.
- the collection unit 12 includes a cyclone main body (also referred to as a container) 21, a gas introduction unit 22 for introducing gas into the cyclone main body 21, and a cyclone main body 21 by introducing a liquid into the cyclone main body 21.
- 21 includes a liquid introduction portion (also referred to as a liquid film formation portion) 23 for forming a liquid film 40 on the inner surface.
- the cyclone body (container) 21 of the collection unit 12 includes a container body 31 that forms a prefix conical space 35 therein, and an upper opening of the container body 31.
- the liquid introduction pipe 23b of the liquid introduction part 23 is connected to the container main body 31 side part of the cyclone main body 21.
- the gas introduction part 22 is connected to the lid part 32 of the cyclone main body 21, and the connection end 33 b of the intake hole 33 formed in the lid part 32 is connected to the gas introduction part 22.
- one gas introduction part 22 is connected to the lid part 32.
- a plurality of gas introducing portions 22, intake holes 33, and protruding nozzles 36 may be provided.
- an exhaust pipe 24 b is attached to the lid portion 32, and the exhaust pipe 24 b extends upward from the space 35 of the container body 31 through the lid portion 32.
- the intake hole 33 extends in the lid portion 32 with an inclination angle ⁇ of 45 ° to 60 ° downward with respect to the orthogonal surface 21B orthogonal to the axis 21A of the cyclone main body 21.
- the intake hole 23 has a protruding nozzle 36 that protrudes from the lower surface 32a of the lid portion 32 into the space 35 of the container body 31, and the lower end of the protruding nozzle 36 opens to form an opening 33a.
- the opening 33 a is located at the lower end of the protruding nozzle 36 that protrudes downward from the lower surface 32 a of the lid 32.
- a liquid film 40 is formed on the inner surface of the cyclone main body 21 by the liquid introduced from the liquid introduction pipe 23b of the liquid introduction portion 23.
- the liquid film 40 extends from the lower end to the upper end of the container main body 31, that is, the container main body 31. Is formed so as to extend from the lower end to the lower surface 32 a of the lid portion 32.
- the opening 33 a of the intake hole 33 provided in the lid portion 32 is located at the lower end of the protruding nozzle 36 protruding from the lower surface 32 a of the lid portion 32 and opens at a position spaced from the inner surface of the container body 31. is doing. For this reason, the liquid film 40 on the inner surface of the container body 31 is not entrained by the intake gas from the opening 33a of the intake hole 33, so that the liquid film is not entrained by the intake gas and mist is not generated.
- the intake hole 33 extends downward with respect to the orthogonal surface 21B of the cyclone body 21, the intake gas ejected from the intake hole 33 strikes the liquid film 40 formed on the inner surface of the opposing container body 31. Will be in touch. For this reason, particles contained in the intake gas can be reliably attached to the liquid film 40, and the particles can be reliably collected by the liquid film 40.
- the intake gas ejected from the intake hole 33 is brought into contact with the liquid film 40 and the particles in the intake gas are adhered to the liquid film 40 and then reliably collected. Can do.
- FIG. 10 is a side view showing the cyclone main body 21 of the collection unit 12.
- the collection unit 12 includes a cyclone main body (also referred to as a container) 21, a gas introduction unit 22 for introducing gas into the cyclone main body 21, and a cyclone main body 21 by introducing a liquid into the cyclone main body 21.
- 21 includes a liquid introduction portion (also referred to as a liquid film formation portion) 23 for forming a liquid film 40 on the inner surface.
- the cyclone body (container) 21 of the collection unit 12 includes a container body 31 formed of a rotating body that forms a cylindrical space 35 inside and has a rotation axis 21 ⁇ / b> A. ing.
- the container body 31 is hermetically sealed as a whole, and has a lower end 31a, an upper end 31c, and a side wall 31b extending between the lower end 31a and the upper end 31c.
- An introduction pipe 23b is connected.
- the gas introduction part 22 is connected to the upper end part 31c of the container body 31 of the cyclone body 21, and the connection end 33b of the intake hole 33 formed in the upper end part 31c is connected to the gas introduction part 22.
- four gas introducing portions 22 are connected to the entire circumference of the upper end portion 31c along the tangential direction of the wall surface of the cyclone main body 21, and each gas introducing portion 22 extends over the entire circumference of the upper end portion 31c. And 90 ° apart from each other. Therefore, four intake holes 33 are provided in the upper end portion 31c so as to correspond to the four gas introduction portions 22 and are separated by 90 °.
- an exhaust pipe 24b is attached to the center position of the upper end portion 31c, and the exhaust pipe 24b extends upward from the space 35 of the container body 31 through the upper end portion 31c.
- the container main body 31 of the cyclone main body 21 is also provided with a liquid supply unit 26 on the side wall 31b, and this liquid supply unit 26 is connected to the droplet forming unit 13 via a liquid feed pump 27 (see FIG. 5). ).
- a tapered inlet portion 26a that extends toward the space 35 is formed at the inlet of the liquid supply portion 26 provided on the side wall 31b.
- the liquid supply unit 26 is provided on the side wall 31b of the container main body 31, a liquid having a specific gravity greater than that of air is transferred from the tapered inlet 26a to the liquid supply unit 26 side by centrifugal force. Can guide smoothly.
- Each intake hole 33 extends in the lid portion 32 at an inclination angle ⁇ of 5 ° to 15 ° downward with respect to an orthogonal surface 21B orthogonal to the axis 21A of the cyclone main body 21.
- Each intake hole 23 has an opening 33 a that opens into the space 35 of the container body 31. The opening 33a does not protrude downward from the lower surface 31c1 of the upper end 31c, and opens in the same plane as the lower surface 31c1.
- a liquid film 40 is formed on the side wall 31b of the cyclone main body 21 by the liquid introduced from the liquid introduction pipe 23b of the liquid introduction portion 23.
- the liquid film 40 extends from the lower end to the upper end of the side wall 31b of the container main body 31. Although formed so as to expand, it does not reach the lower surface 31c1 of the upper end portion 31c.
- the opening 33a of the intake hole 33 provided in the upper end 31c of the container main body 31 is the lower surface 31c1 of the upper end 31c and opens at a position separated from the side wall 31b of the container main body 31. Therefore, the liquid film 40 on the inner surface of the side wall 31b of the container body 31 is not caught by the intake gas from the opening 33a of the intake hole 33, and this causes the liquid film to be drawn by the intake gas and generating mist. Absent.
- the intake hole 33 extends obliquely downward with respect to the orthogonal surface 21B of the cyclone main body 21, the intake gas ejected from the intake hole 33 is a liquid formed on the inner surface of the opposite side wall 31b of the container main body 31. It will abut against the membrane 40. For this reason, particles contained in the intake gas are directed to the liquid film 40 by centrifugal force, whereby the particles are reliably attached to the liquid film 40, and the particles can be reliably collected by the liquid film 40.
- the main body 31 is wound up and discharged from the exhaust pipe 24b.
- the intake gas ejected from the intake hole 33 is brought into contact with the liquid film 40 and the particles in the intake gas are adhered to the liquid film 40 and then reliably collected. Can do.
- the cyclone main body 21 shown in FIG. 10 may use the upper end part 31c and the lower end part 31a by repeatedly pulling up and down, and bring the gas introduction part 22 and the exhaust pipe 24b downward.
- FIG. 11 is a side view showing the cyclone main body 21 of the collection unit 12.
- the collection unit 12 includes a cyclone main body (also referred to as a container) 21, a gas introduction unit 22 for introducing gas into the cyclone main body 21, and a cyclone main body 21 by introducing a liquid into the cyclone main body 21.
- 21 includes a liquid introduction portion (also referred to as a liquid film formation portion) 23 for forming a liquid film 40 on the inner surface.
- the cyclone body (container) 21 of the collection unit 12 includes a container body 31 formed of a rotating body that forms a cylindrical space 35 inside and has a rotation axis 21 ⁇ / b> A. ing.
- the container body 31 is hermetically sealed as a whole, and has a lower end 31a, an upper end 31c, and a side wall 31b extending between the lower end 31a and the upper end 31c.
- An introduction pipe 23b is connected.
- the gas introduction part 22 is connected to the upper end part 31c of the container body 31 of the cyclone body 21, and the connection end 33b of the intake hole 33 formed in the upper end part 31c is connected to the gas introduction part 22.
- four gas introducing portions 22 are connected to the entire circumference of the upper end portion 31c along the tangential direction of the wall surface of the cyclone main body 21, and each gas introducing portion 22 extends over the entire circumference of the upper end portion 31c. And 45 ° apart from each other. Therefore, four intake holes 33 are provided in the upper end portion 31c so as to correspond to the four gas introduction portions 22 and are separated by 90 °.
- an exhaust pipe 24b is attached to the center position of the lower end portion 31a, and the exhaust pipe 24b extends upward from the space 35 of the container body 31 through the lower end portion 31a.
- the exhaust pipe 24b can be provided in the center position of the lower end part 31a, the exhaust pipe 24b is arranged facing the gas introduction part 22 of the upper end part 31c. For this reason, the freedom degree of the installation position of the gas introduction part 22 in the upper end part 31c increases.
- the liquid supply part 26 is provided in the side wall 31b of the container main body 31 of the cyclone main body 21, and this liquid supply part 26 is connected to the droplet formation part 13 via the liquid feeding pump 27 (refer FIG. 5). ).
- a tapered inlet portion 26a that extends toward the space 35 is formed at the inlet of the liquid supply portion 26 provided on the side wall 31b.
- a liquid having a large specific gravity is smoothly guided from the tapered inlet part 26a to the liquid supply part 26 side by centrifugal force. Can do.
- Each intake hole 33 extends in the lid portion 32 at an inclination angle ⁇ of 5 ° to 15 ° downward with respect to an orthogonal surface 21B orthogonal to the axis 21A of the cyclone main body 21.
- Each intake hole 23 has an opening 33 a that opens into the space 35 of the container body 31. The opening 33a does not protrude downward from the lower surface 31c1 of the upper end 31c, and opens in the same plane as the lower surface 31c1.
- a liquid film 40 is formed on the side wall 31b of the cyclone main body 21 by the liquid introduced from the liquid introduction pipe 23b of the liquid introduction portion 23.
- the liquid film 40 extends from the lower end to the upper end of the side wall 31c of the container main body 31. Although formed so as to expand, it does not reach the lower surface 31c1 of the upper end portion 31c.
- the opening 33a of the intake hole 33 provided in the upper end 31c of the container main body 31 is the lower surface 31c1 of the upper end 31c and opens at a position separated from the side wall 31b of the container main body 31. Therefore, the liquid film 40 on the inner surface of the side wall 31b of the container body 31 is not caught by the intake gas from the opening 33a of the intake hole 33, and this causes the liquid film to be drawn by the intake gas and generating mist. Absent.
- the intake hole 33 extends obliquely downward with respect to the orthogonal surface 21B of the cyclone main body 21, the intake gas ejected from the intake hole 33 is a liquid formed on the inner surface of the opposite side wall 31b of the container main body 31. It will abut against the membrane 40. For this reason, particles contained in the intake gas are directed to the liquid film 40 by centrifugal force, whereby the particles are reliably attached to the liquid film 40, and the particles can be reliably collected by the liquid film 40.
- the main body 31 is wound up and discharged from the exhaust pipe 24b.
- the intake gas ejected from the intake hole 33 is brought into contact with the liquid film 40 and the particles in the intake gas are adhered to the liquid film 40 and then reliably collected. Can do.
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Abstract
Description
以下に、本発明の第1の実施の形態を詳細に説明する。なお、本実施の形態により開示する発明が限定されるものではない。また以下に示す実施の形態は、処理内容を矛盾させない範囲で適宜組み合わせることが可能である。
次に図2A乃至図2Cにより、第2の実施の形態によるサイクロン捕集器からなる捕集部12について述べる。
次に図3A乃至図3Cにより、第3の実施の形態によるサイクロン捕集器からなる捕集部12について述べる。
次に図10により、第4の実施の形態によるサイクロン捕集器からなる捕集部12について述べる。
次に図11により、第5の実施の形態によるサイクロン捕集器からなる捕集部12について述べる。
11 ダスト除去部
12 捕集部
13 液滴形成部
14 液滴選別部
15 測定部
16 液体回収部
17 吸引ポンプ
18 主配管
18a 絞り部分
19 粗大ダスト除去部
21 サイクロン本体
21A 軸線
21B 直交面
22 気体導入部
23 液体導入部
23a タンク
23b 液体導入管
31 容器本体
31a 下端部
31b 側壁
31c 上端部
32 蓋部
32a 下部表面
33 吸気孔
33a 開口部
33b 接続端
35 空間
36 突出ノズル
40 液膜
Claims (8)
- 上端部と、下端部と、前記上端部と下端部との間に延びる側壁とを有し、回転軸線をもつ回転体からなるとともに、内部に空間を形成する容器と、
前記容器に設けられ、一定の高さをもつ液膜を前記側壁内面に形成する液膜形成部と、 前記容器に設けられ、前記容器内に開口する開口部を有する吸気孔と、
前記容器に設けられた排気管と,を備え、
前記吸気孔は前記容器の回転軸線に直交する直交面に対して傾斜して前記空間内へ向かって延び、前記吸気孔の開口部全域は前記液膜以外の領域に開口するとともに前記吸気孔により吸気気体を前記液膜に噴出する、サイクロン捕集器。 - 前記吸気孔は前記容器の前記上端部に設けられている、請求項1記載のサイクロン捕集器。
- 前記液膜形成部は前記容器の前記下端部から上方に延びるよう前記側壁内面に前記液膜を形成する、請求項1または2記載のサイクロン捕集器。
- 前記容器に複数の吸気孔が設けられている、請求項1乃至3のいずれか記載のサイクロン捕集器。
- 前記吸気孔は前記容器の前記上端部に設けられ、その開口部は前記容器の前記空間に開口する、請求項2乃至4のいずれか記載のサイクロン捕集器。
- 前記吸気孔は前記容器の前記上端部に設けられるとともに、前記上端部の表面から突出する突出ノズルを有し、この突出ノズル先端に前記開口部が形成されている、請求項2乃至4のいずれか記載のサイクロン捕集器。
- 前記容器の前記下端部に液体供給部が設けられている、請求項1乃至6のいずれか記載のサイクロン捕集器。
- 前記容器の前記側壁に液体供給部が設けられている、請求項1乃至6のいずれか記載のサイクロン捕集器。
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JP2019521950A JP6858851B2 (ja) | 2017-05-31 | 2018-01-29 | サイクロン捕集器 |
EP18808720.9A EP3632571B1 (en) | 2017-05-31 | 2018-01-29 | Cyclone collector |
CN201880035321.1A CN110678268B (zh) | 2017-05-31 | 2018-01-29 | 旋风式捕集器 |
US16/618,348 US11117144B2 (en) | 2017-05-31 | 2018-01-29 | Cyclone collector |
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JP2017108770 | 2017-05-31 | ||
JP2017-108770 | 2017-05-31 |
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PCT/JP2018/002617 WO2018220896A1 (ja) | 2017-05-31 | 2018-01-29 | サイクロン捕集器 |
Country Status (5)
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US (1) | US11117144B2 (ja) |
EP (1) | EP3632571B1 (ja) |
JP (1) | JP6858851B2 (ja) |
CN (1) | CN110678268B (ja) |
WO (1) | WO2018220896A1 (ja) |
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GB2571430A (en) * | 2017-12-29 | 2019-08-28 | Nuctech Co Ltd | Device for collecting semi-volatile or non-volatile substrate |
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DE102020130922B3 (de) * | 2020-11-23 | 2022-01-20 | Krones Aktiengesellschaft | Vorrichtung und Verfahren zum Abscheiden von Leimpartikeln aus einem Leimaerosol |
CN113984467B (zh) * | 2021-10-20 | 2024-02-09 | 国家烟草质量监督检验中心 | 一种烟草制品气溶胶捕集物的制备方法、所获得的气溶胶捕集物及其应用 |
CN114433366A (zh) * | 2021-12-31 | 2022-05-06 | 苏州界川设计咨询有限公司 | 一种适合增材制造的单一结构多级旋风集尘器 |
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US11117144B2 (en) | 2021-09-14 |
US20210187519A1 (en) | 2021-06-24 |
CN110678268B (zh) | 2022-05-13 |
CN110678268A (zh) | 2020-01-10 |
JPWO2018220896A1 (ja) | 2020-04-02 |
JP6858851B2 (ja) | 2021-04-14 |
EP3632571A1 (en) | 2020-04-08 |
EP3632571A4 (en) | 2021-03-03 |
EP3632571B1 (en) | 2024-09-11 |
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