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WO2017033747A1 - Mélangeur de gaz et dispositif de mélange de gaz - Google Patents

Mélangeur de gaz et dispositif de mélange de gaz Download PDF

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Publication number
WO2017033747A1
WO2017033747A1 PCT/JP2016/073531 JP2016073531W WO2017033747A1 WO 2017033747 A1 WO2017033747 A1 WO 2017033747A1 JP 2016073531 W JP2016073531 W JP 2016073531W WO 2017033747 A1 WO2017033747 A1 WO 2017033747A1
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WO
WIPO (PCT)
Prior art keywords
flow path
gas
inflow hole
gas mixer
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2016/073531
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English (en)
Japanese (ja)
Inventor
東山祐三
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP2017536733A priority Critical patent/JPWO2017033747A1/ja
Publication of WO2017033747A1 publication Critical patent/WO2017033747A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/10—Mixing gases with gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours

Definitions

  • This invention relates to the gas mixer which mixes 1st gas and 2nd gas, and a gas mixing apparatus provided with this gas mixer.
  • Patent Document 1 discloses a gas mixer that mixes air and oxygen.
  • the gas mixer disclosed in Patent Document 1 includes an oxygen inflow hole into which high-pressure oxygen flows, a nozzle having a small hole communicating with the oxygen inflow hole, an air inflow hole through which air flows in, and a patient. And a mixed gas outflow hole communicating with the mouth and nose.
  • the gas mixer of Patent Document 1 jets supplied oxygen from a nozzle hole at a high speed, and draws air from the air inflow hole by a negative pressure generated by the high-speed injection. Thereby, this gas mixer mixes the oxygen drawn at a high speed from the nozzle and the air drawn in from the air inflow hole. And this gas mixer discharges
  • an object of the present invention is to provide a gas mixer and a gas mixing apparatus that reduce jet noise and achieve noise reduction.
  • the gas mixer of the present invention has a first inflow hole into which the first gas flows in, a second inflow hole into which the second gas flows in, and an outflow hole through which the mixed gas of the first gas and the second gas flows out.
  • a housing is provided.
  • the housing includes a first flow path communicating with the first inflow hole, a second flow path connecting the second inflow hole and the outflow hole, and a third flow path connecting the first flow path and the second flow path.
  • the second inflow hole and the second flow path are provided on the same linear axis.
  • the direction in which the third flow path extends is the same as the direction of the linear axis.
  • the gas mixer having this configuration can reduce jet noise and achieve noise reduction.
  • the cross-sectional area of the third flow path is preferably smaller than the cross-sectional area of the first flow path, and the cross-sectional area of the third flow path is preferably smaller than the cross-sectional area of the second flow path.
  • jet noise is generated at the junction of the second flow path, passes through the third flow path and the first flow path, and leaks from the first inflow hole.
  • the acoustic impedance also changes where the cross-sectional area changes. Therefore, when jet noise propagates from the second flow path to the third flow path, the jet noise is reflected and attenuates significantly.
  • the gas mixer having this configuration can reduce jet noise and achieve noise reduction.
  • the gas mixer of the present invention preferably includes a first soundproof member provided on the first inner wall surface of the casing.
  • the first inner wall surface constitutes a part of the first flow path and faces the third flow path.
  • the gas mixer having this configuration can further reduce noise.
  • the gas mixer of the present invention includes a second soundproofing member provided on the second inner wall surface.
  • the second inner wall surface constitutes a part of the first flow path and faces the first inflow hole.
  • the gas mixer having this configuration can further reduce noise.
  • the first inflow hole is located on the outflow hole side in the direction of the linear axis from the inlet of the third flow path in contact with the first flow path.
  • the distance traveled by the jet noise generated at the merging point before exiting from the first inflow hole is increased. Therefore, in this configuration, jet noise is easily attenuated. Therefore, the gas mixer having this configuration can further reduce noise.
  • the first inflow hole is located on the outflow hole side in the direction of the linear axis from the outlet of the third flow path in contact with the first flow path.
  • the distance traveled by the jet noise generated at the merging point before exiting from the first inflow hole is further increased. Therefore, in this configuration, jet noise is easily attenuated. Therefore, the gas mixer having this configuration can further reduce noise.
  • the gas mixing device of the present invention includes the gas mixer and the gas supply device of the present invention.
  • the gas supplier has a connection hole connected to the second inflow hole, and supplies the second gas from the connection hole to the second inflow hole.
  • the gas mixing device of the present invention includes the gas mixer of the present invention. Therefore, the gas mixing device of the present invention can reduce jet noise and achieve noise reduction, similarly to the gas mixer of the present invention.
  • the gas mixer and the gas mixing device of the present invention can reduce jet noise and achieve noise reduction.
  • FIG. 3 is a sectional view taken along line SS shown in FIG. 2.
  • FIG. 3 is a cross-sectional view taken along line SS shown in FIG. 2 while gas is flowing.
  • It is sectional drawing of the principal part of the gas mixer 900 which concerns on the comparative example of 1st Embodiment of this invention.
  • FIG. 1 is a schematic configuration diagram of a gas mixing apparatus 10 including a gas mixer 100 according to the first embodiment of the present invention.
  • FIG. 2 is an external perspective view of the gas mixer 100 shown in FIG. 3 is a cross-sectional view taken along line SS shown in FIG.
  • FIG. 4 is a cross-sectional view taken along the line SS shown in FIG. 2 while the gas is flowing. Each arrow in FIG. 4 has shown the direction through which gas flows.
  • the gas mixing device 10 includes a mask M, a gas mixer 100, a tube T, and a gas supplier 90.
  • the mask M is attached to the mouth and nose of the patient U.
  • the gas supply device 90 is constituted by, for example, a tank that stores high-pressure oxygen.
  • the gas supply device 90 includes a connection hole 92.
  • the connection hole 92 is connected to a second inflow hole 152 described later.
  • the gas supplier 90 supplies high-pressure oxygen 102 from the connection hole 92.
  • the gas mixer 100 includes a housing 120 and a soundproof member 160.
  • the gas mixer 100 is used, for example, in high flow oxygen therapy.
  • the gas mixer 100 mixes air 101 and, for example, 100% oxygen 102 to generate a mixed gas 103 of air 101 and oxygen 102.
  • the gas mixer 100 supplies the mixed gas 103 into the mouth and nose of the patient U at a high flow rate (for example, 30 L / min).
  • the gas mixer 100 is installed near the bed on which the patient U lies, for example. Therefore, when a large noise is generated from the gas mixer 100, the patient U feels very uncomfortable.
  • Air 101 corresponds to an example of the first gas of the present invention.
  • Oxygen 102 corresponds to an example of the second gas of the present invention.
  • the housing 120 includes a first outer housing 121, a second outer housing 122, a nozzle 123, and a cylindrical inner housing 125, as shown in FIGS.
  • the housing 120 is made of, for example, resin.
  • the first outer casing 121 has a cylindrical shape having an opening surface orthogonal to the inner casing 125.
  • the second outer housing 122 has a cylindrical shape.
  • the first outer housing 121 has a first inflow hole 110.
  • the second outer casing 122 has an opening 124.
  • the inner diameter of the first outer casing 121 is longer than the outer diameter of the second outer casing 122 as shown in FIG.
  • the second outer casing 122 is inserted into the first outer casing 121. As shown in FIG.
  • the second outer housing 122 is inserted into the connection port 89 of the mask M.
  • the first end of the nozzle 123 is inserted into the first outer casing 121 and the second outer casing 122.
  • the first outer casing 121 is rotatable with respect to the second outer casing 122 and the nozzle 123.
  • the tube T is connected to the second end of the nozzle 123 and the connection hole 92 of the gas supply device 90.
  • the inner housing 125 has a cylindrical shape. As shown in FIG. 3, the outer diameter of the inner casing 125 is shorter than the inner diameter of the second outer casing 122, and the inner diameter of the inner casing 125 is longer than the outer diameter of the first end of the nozzle 123.
  • the inner casing 125 is inserted into the second outer casing 122 and surrounds the first end of the nozzle 123.
  • the casing 120 has the above configuration, and the high-pressure oxygen 102 is supplied from the first inflow hole 110 through which the air 101 flows from the outside of the casing 120 and the connection hole 92 of the gas supplier 90.
  • the housing 120 has a first flow path 111, a second flow path 112, and a third flow path 150 inside.
  • the first flow path 111 communicates with the first inflow hole 110 through the opening 124.
  • the second flow path 112 connects the third flow path 150, the second inflow hole 152, and the outflow hole 113.
  • the third flow path 150 connects the first flow path 111 and the second flow path 112.
  • the first inflow hole 110 is located on the outflow hole 113 side in the direction of the linear axis R from the inlet 150a of the third flow path 150 in contact with the first flow path 111.
  • the second inflow hole 152 is provided at the center of the nozzle 123. High-pressure oxygen flows into the second inflow hole 152 from the connection hole 92 of the gas supply device 90 through the tube T.
  • the outflow hole 113 communicates with the mask M.
  • the second flow path 112 is provided inside the inner casing 125.
  • the second inflow hole 152 and the second flow path 112 are provided on the same linear axis R.
  • the third flow path 150 is provided in a region between the inner casing 125 and the nozzle 123. The direction in which the third flow path 150 extends is the same as the direction of the linear axis R.
  • cross-sectional area of the third flow path 150 is smaller than the cross-sectional area of the first flow path 111.
  • the cross-sectional area of the third flow path 150 is smaller than the cross-sectional area of the second flow path 112.
  • the housing 120 has a first inner wall surface 159 that constitutes a part of the first flow path 111 and faces the third flow path 150.
  • the soundproof member 160 is provided on the first inner wall surface 159.
  • the soundproof member 160 is made of, for example, a sponge with high sound absorption.
  • the high-pressure oxygen 102 supplied from the gas supplier 90 is jetted from the second inflow hole 152 to the second flow path 112 at a high speed.
  • the oxygen 102 is injected from the second inflow hole 152 into the second flow path 112
  • the oxygen 102 moves around the surrounding air, so that the pressure around the flow of the oxygen 102 decreases.
  • the pressure around the outlet 150b of the third flow path 150 decreases.
  • the inlet 150 a of the third flow path 150 communicates with the first inflow hole 110 through the first flow path 111. Therefore, the air 101 is drawn into the second flow path 112 from the first inflow hole 110 through the first flow path 111 and the third flow path 150.
  • the air 101 drawn from the first inflow hole 110 and the oxygen 102 injected at a high speed from the second inflow hole 152 are mixed in the second flow path 112.
  • the mixed gas 103 flows out from the outflow hole 113.
  • the mixed gas 103 flowing out from the outflow hole 113 flows into the mask M attached to the mouth and nose of the patient U through the tube T.
  • the gas mixer 100 supplies the mixed gas 103 into the mouth and nose of the patient U by decreasing the oxygen concentration and increasing the flow rate.
  • the first outer casing 121 is rotatable with respect to the second outer casing 122 and the nozzle 123 as described above.
  • the air inflow area changes.
  • the air inflow area is an area where the first inflow hole 110 and the opening 124 overlap.
  • FIG. 5 is a cross-sectional view of a main part of a gas mixer 900 according to a comparative example of the first embodiment of the present invention.
  • the main difference between the gas mixer 900 and the gas mixer 100 is a housing 920.
  • the main difference between the housing 920 and the housing 120 is that it does not have the cylindrical inner housing 125. Therefore, the housing 920 does not have the first flow path 111, the second flow path 112, and the third flow path 150, and has an internal space 911. Other configurations are the same.
  • FIG. 6 is a cross-sectional view of the main part of the gas mixer 900 while the gas is flowing. Each arrow in FIG. 6 has shown the direction through which gas flows.
  • the high-pressure oxygen 102 supplied from the gas supplier 90 is injected from the second inlet 152 into the internal space 911 at a high speed.
  • the oxygen 102 moves by involving surrounding air.
  • the pressure around the flow of the oxygen 102 decreases. Therefore, the air 101 is drawn into the internal space 911 from the first inflow hole 110.
  • the air 101 drawn from the first inflow hole 110 and the oxygen 102 injected at high speed from the second inflow hole 152 are mixed in the internal space 911.
  • the mixed gas 103 flows out from the outflow hole 913.
  • the mixed gas 103 flowing out from the outflow hole 913 flows into the mask M attached to the mouth and nose of the patient U through the tube T.
  • the gas mixer 900 similarly to the gas mixer 100, the gas mixer 900 also supplies the mixed gas 103 into the mouth and nose of the patient U by decreasing the oxygen concentration and increasing the flow rate.
  • the speed difference between the oxygen 102 injected at high speed from the second inflow hole 152 and the air 101 drawn from the first inflow hole 110 is extremely large.
  • the oxygen 102 injected at high speed from the second inflow hole 152 and the air 101 drawn from the first inflow hole 110 merge substantially vertically.
  • the gas mixer 900 has a problem that a large noise is generated as in the gas mixer of Patent Document 1 described above.
  • the second inflow hole 152 and the second flow path 112 are provided on the same linear axis R.
  • the direction in which the third flow path 150 extends is the same as the direction of the linear axis R.
  • the jet noise generated at the junction P between the oxygen 102 injected at high speed from the second inflow hole 152 and the air 101 drawn from the first inflow hole 110 is reduced. Therefore, the gas mixer 100 does not generate much noise as compared with the gas mixer 900 and the gas mixer disclosed in Patent Document 1.
  • the gas mixer 100 can reduce jet noise and achieve noise reduction.
  • the cross-sectional area of the third flow path 150 is smaller than the cross-sectional area of the second flow path 112. Further, the cross-sectional area of the third flow path 150 is smaller than the cross-sectional area of the first flow path 111.
  • the speed of the air 101 is accelerated while the air 101 drawn from the first inflow hole 110 passes through the narrow third flow path 150. Therefore, the speed difference between the air 101 drawn from the first inflow hole 110 and the oxygen 102 injected at high speed from the second inflow hole 152 becomes small.
  • Jet noise is generated at the confluence point P in the second flow path 112, passes through the third flow path 150 and the first flow path 111, and leaks from the first inflow hole 110.
  • the acoustic impedance changes where the cross-sectional area changes. Therefore, when jet noise propagates from the second flow path 112 to the third flow path 150, the jet noise is reflected and attenuated significantly. Since the outflow hole 113 and the second inflow hole 152 are connected to the mask M and the gas supply device 90, jet noise does not leak from the outflow hole 113 and the second inflow hole 152.
  • the gas mixer 100 can reduce jet noise and achieve noise reduction.
  • the cross-sectional area of the first flow path 111 differs depending on each position in the first flow path 111. Therefore, the cross-sectional area of the third flow path 150 in this case is the cross-sectional area of the inlet 111A of the first flow path 111 (that is, the cross-sectional area of the first inflow hole 110) of the first flow path 111 or the second outer casing. It is preferable to compare with the cross-sectional area of the cross section sandwiched between 122 and the inner casing 125.
  • the cross-sectional area of the third flow path 150 differs depending on the position of the third flow path 150, the cross-sectional area of the first flow path 111 or the second flow path 112 is the velocity of the air 101 in the third flow path 150. It is preferable to compare with the cross-sectional area at the position where the speed is the fastest (that is, the minimum cross-sectional area of the third channel 150).
  • the cross-sectional area of the second flow path 112 varies depending on the position of the second flow path 112
  • the cross-sectional area of the third flow path 150 is the largest in the second flow path 112 at the outlet 150 b of the third flow path 150. It is preferable to compare with the cross-sectional area at a close position.
  • the soundproof member 160 is provided on the first inner wall surface 159. Therefore, the jet noise generated at the junction P and passing through the third flow path 150 is absorbed and reflected by the soundproof member 160. Therefore, the gas mixer 100 can further reduce noise.
  • the first inflow hole 110 is located on the outflow hole 113 side in the direction of the linear axis R from the inlet 150a of the third flow path 150 that contacts the first flow path 111.
  • the distance traveled by the jet noise generated at the junction P until the jet noise exits from the first inflow hole 110 is increased. Therefore, jet noise is easily attenuated in the gas mixer 100. Therefore, the gas mixer 100 can further reduce noise.
  • the gas mixing device 10 includes a gas mixer 100. Therefore, similarly to the gas mixer 100, the gas mixing device 10 can reduce jet noise and achieve noise reduction.
  • FIG. 7 is a cross-sectional view of a main part of a gas mixer 200 according to the second embodiment of the present invention.
  • the difference between the gas mixer 200 and the gas mixer 100 is that a soundproof member 260 and a soundproof member 261 are further provided. Since other configurations are the same, description thereof is omitted.
  • the housing 120 has a second inner wall surface 258 that constitutes a part of the first flow path 111 and faces the first inflow hole 110.
  • the soundproof member 260 is provided on the second inner wall surface 258 in the first flow path 111 in a state parallel to the third flow path 150.
  • the housing 120 has a third inner wall surface 259 that faces the inner housing 125.
  • the soundproof member 261 is provided on the third inner wall surface 259.
  • the soundproof member 260 and the soundproof member 261 are made of, for example, a sponge having a high sound absorption property.
  • the jet noise generated at the junction P and passing through the third flow path 150 is absorbed and reflected by the soundproof member 160, the soundproof member 260, and the soundproof member 261. Therefore, the gas mixer 200 and the gas mixing device including the gas mixer 200 can further reduce noise.
  • FIG. 8 is a cross-sectional view of a main part of a gas mixer 300 according to the third embodiment of the present invention.
  • the gas mixer 300 is different from the gas mixer 100 in a housing 320 having a first outer housing 321 and a second outer housing 322.
  • the housing 320 includes a first inflow hole 310 that penetrates the soundproof member 160, the first outer housing 321, and the second outer housing 322 instead of the first inflow hole 110 and the opening 124. Since other configurations are the same, description thereof is omitted.
  • the gas mixer 300 the high-pressure oxygen 102 supplied from the gas supplier 90 is jetted from the second inflow hole 152 to the second flow path 112 at a high speed.
  • the oxygen 102 is injected from the second inflow hole 152 into the second flow path 112
  • the oxygen 102 moves around the surrounding air, so that the pressure around the flow of the oxygen 102 decreases.
  • the pressure around the outlet 150b of the third flow path 150 decreases.
  • the inlet 150 a of the third flow path 150 communicates with the first inflow hole 310 through the first flow path 111. Therefore, the air 101 is drawn into the second flow path 112 from the first inflow hole 310 through the first flow path 111 and the third flow path 150.
  • the air 101 drawn from the first inflow hole 310 and the oxygen 102 injected at high speed from the second inflow hole 152 are mixed in the second flow path 112.
  • the mixed gas 103 flows out from the outflow hole 113.
  • the mixed gas 103 flowing out from the outflow hole 113 flows into the mask M attached to the mouth and nose of the patient U through the tube T.
  • the gas mixer 300 supplies the mixed gas 103 into the mouth and nose of the patient U by decreasing the oxygen concentration and increasing the flow rate.
  • the second inflow hole 152 and the second flow path 112 are provided on the same linear axis R.
  • the direction in which the third flow path 150 extends is the same as the direction of the linear axis R.
  • the gas mixer 300 can reduce jet noise and achieve noise reduction.
  • FIG. 9 is a cross-sectional view of a main part of a gas mixer 400 according to the fourth embodiment of the present invention.
  • the gas mixer 400 is different from the gas mixer 100 in a housing 420 having a first outer housing 421 and a second outer housing 422.
  • the housing 420 includes a first inflow hole 410 and an opening 424 instead of the first inflow hole 110 and the opening 124.
  • the first inflow hole 410 and the opening 424 are located on the outflow hole 113 side in the direction of the linear axis R from the outlet 150 b of the third flow path 150 that contacts the first flow path 111. That is, the first inflow hole 410 is closer to the outflow hole 113 than the first inflow hole 110. Further, the opening 424 is closer to the outflow hole 113 than the opening 124. Since other configurations are the same, description thereof is omitted.
  • jet noise generated at the junction P and passing through the third flow path 150 flows out of the housing 420 from the first inflow hole 410. That is, the travel distance of the jet noise in the gas mixer 400 shown in FIG. 9 is farther than the travel distance of the jet noise in the gas mixer 100 shown in FIG. Therefore, the gas mixer 400 and the gas mixing device including the gas mixer 400 can further reduce noise.
  • FIG. 10 is a cross-sectional view of a main part of a gas mixer 500 according to the fifth embodiment of the present invention.
  • the difference between the gas mixer 500 and the gas mixer 100 is a housing 520.
  • the case 520 is different from the case 120 in that it does not have the first outer case 121.
  • the opening 124 corresponds to the first inflow hole. Since other configurations are the same, description thereof is omitted.
  • the gas mixer 500 cannot adjust the amount of the air 101 flowing from the opening 124 because the housing 520 does not have the first outer housing 121.
  • the second inflow hole 152 and the second flow path 112 are provided on the same linear axis R.
  • the direction in which the third flow path 150 extends is the same as the direction of the linear axis R.
  • the gas mixer 500 can reduce jet noise and can be quiet.
  • air is used as the first gas and oxygen is used as the second gas.
  • oxygen may be used as the first gas
  • air may be used as the second gas, for example.
  • a mixed gas of air and oxygen may be used as the first gas or the second gas.
  • gas mixer is used for high flow oxygen therapy, but the present invention is not limited to this.
  • gas mixers may be used for other applications, such as continuous positive airway pressure therapy (CPAP) or mechanical artificial respiration applications.
  • CPAP continuous positive airway pressure therapy
  • the mixed gas 103 flowing out from the outflow hole 113 of the gas mixer 100 directly flows into the mask M, but the present invention is not limited to this.
  • the gas mixing device may include, for example, a heater or a humidifier between the outflow hole 113 of the gas mixer 100 and the mask M.
  • the mixed gas 103 flowing out from the outflow hole 113 of the gas mixer 100 flows into the mask M after being warmed by the heater.
  • the mixed gas 103 flowing out from the outflow hole 113 of the gas mixer 100 flows into the mask M after containing moisture by the humidifier.
  • the gas supply unit 90 is configured by a tank that stores high-pressure oxygen, but is not limited thereto.
  • the gas supply device 90 may be configured by a pump that sucks oxygen and discharges high-pressure oxygen.
  • Outlet 152 Second inflow hole 159 ... 1st inner wall surface 258 ... 2nd inner wall surface 259 ... 3rd inner wall surface 160 ... Soundproof member (1st soundproof member) 260 ... Soundproof member (second soundproof member) 261 ... Soundproof member (third soundproof member) 900 ... Gas mixer 911 ... Internal space 913 ... Outflow hole 920 ... Housing

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  • Chemical Kinetics & Catalysis (AREA)

Abstract

L'invention porte sur un mélangeur de gaz (100) qui est pourvu d'un boîtier (120) et d'un élément d'insonorisation (160). Le boîtier (120) comporte : un premier orifice d'entrée (110) dans lequel s'écoule de l'air (101); un second orifice d'entrée (152) dans lequel s'écoule de l'oxygène (102); et un orifice de sortie (113) depuis lequel s'écoule un mélange gazeux (103). À l'intérieur du boîtier (120) se trouvent un premier trajet d'écoulement (111), un deuxième trajet d'écoulement (112) et un troisième trajet d'écoulement (150). Le premier trajet d'écoulement (111) est relié au premier orifice d'entrée (110). Le troisième trajet d'écoulement (150) relie le premier trajet d'écoulement (111) et le deuxième trajet d'écoulement (112). Le second orifice d'entrée (152) et le deuxième trajet d'écoulement (112) sont situés sur le même axe linéaire (R). La direction dans laquelle s'étend le troisième trajet d'écoulement (150) est la même que la direction de l'axe linéaire (R). En outre, la surface de section transversale du troisième trajet d'écoulement (150) est inférieure à la surface de section transversale du premier trajet d'écoulement (111). La surface de section transversale du troisième trajet d'écoulement (150) est inférieure à la surface de section transversale du deuxième trajet d'écoulement (112).
PCT/JP2016/073531 2015-08-24 2016-08-10 Mélangeur de gaz et dispositif de mélange de gaz Ceased WO2017033747A1 (fr)

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JP2017536733A JPWO2017033747A1 (ja) 2015-08-24 2016-08-10 気体混合装置

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JP2015-164572 2015-08-24
JP2015164572 2015-08-24

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001526372A (ja) * 1997-12-09 2001-12-18 ハネウエル・インコーポレーテッド ベンチュリ管状ガス・空気混合バルブの内部幾何学的形状設計
JP2002115809A (ja) * 2000-06-20 2002-04-19 John Zink Co Llc ＮＯｘを削減するための燃料の希釈方法及び装置
JP2011005452A (ja) * 2009-06-29 2011-01-13 Osamu Matsumoto 流体混合装置
WO2012101755A1 (fr) * 2011-01-25 2012-08-02 伊藤工機株式会社 Dispositif de production de gaz mixte

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04104030A (ja) * 1990-08-23 1992-04-06 Ebara Corp 風洞用二重ノズル
US5690097A (en) * 1996-05-31 1997-11-25 Board Of Regents, The University Of Texas System Combination anesthetic mask and oxygen transport system
DE20106613U1 (de) * 2001-04-17 2001-07-12 Horn, Franziskus, Dr., Santiago, Lo Barnechea Düse zur Verwendung von Phosphorwasserstoff
JP4435273B1 (ja) * 2009-07-31 2010-03-17 電気化学工業株式会社 セメントキルン排ガス抽気処理装置及びその運転方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001526372A (ja) * 1997-12-09 2001-12-18 ハネウエル・インコーポレーテッド ベンチュリ管状ガス・空気混合バルブの内部幾何学的形状設計
JP2002115809A (ja) * 2000-06-20 2002-04-19 John Zink Co Llc ＮＯｘを削減するための燃料の希釈方法及び装置
JP2011005452A (ja) * 2009-06-29 2011-01-13 Osamu Matsumoto 流体混合装置
WO2012101755A1 (fr) * 2011-01-25 2012-08-02 伊藤工機株式会社 Dispositif de production de gaz mixte

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