WO2022070693A1 - Dispositif d'analyse de gaz portable - Google Patents

Dispositif d'analyse de gaz portable Download PDF

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Publication number
WO2022070693A1
WO2022070693A1 PCT/JP2021/031138 JP2021031138W WO2022070693A1 WO 2022070693 A1 WO2022070693 A1 WO 2022070693A1 JP 2021031138 W JP2021031138 W JP 2021031138W WO 2022070693 A1 WO2022070693 A1 WO 2022070693A1
Authority
WO
WIPO (PCT)
Prior art keywords
back surface
casing
portable gas
rear cover
gas analyzer
Prior art date
Application number
PCT/JP2021/031138
Other languages
English (en)
Japanese (ja)
Inventor
冬樹 青塚
明文 香川
孝平 橘
Original Assignee
株式会社堀場製作所
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 株式会社堀場製作所 filed Critical 株式会社堀場製作所
Priority to DE212021000473.3U priority Critical patent/DE212021000473U1/de
Publication of WO2022070693A1 publication Critical patent/WO2022070693A1/fr

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • H05K5/0214—Venting apertures; Constructional details thereof with means preventing penetration of rain water or dust
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/76—Chemiluminescence; Bioluminescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/02—Mechanical
    • G01N2201/022—Casings
    • G01N2201/0221—Portable; cableless; compact; hand-held
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/02—Mechanical
    • G01N2201/023—Controlling conditions in casing

Definitions

  • the present invention relates to a portable gas analyzer that is portable.
  • Patent Document 1 in a portable gas analyzer as shown in Patent Document 1 or Patent Document 2, in a casing in which an analytical instrument is housed, an operation unit for operating the analytical instrument is provided on the front portion and the back surface thereof. Some units are provided with piping, wiring, or power supply connectors for analytical instruments.
  • this portable gas analyzer When using this portable gas analyzer outdoors, it is considered to add a dust-proof / drip-proof structure to protect it from dust and water droplets.
  • a dust-proof / drip-proof structure For example, in a portable gas analyzer, parts that require drip-proof and dust-proof (for example, power supply connectors, pipes, wiring connectors, etc.) are covered with a cover, and the portable gas analyzer is housed in a box. There is.
  • the portable gas analyzer often accommodates as many analytical instruments as possible in a small casing, and the performance is how efficiently the heat inside the casing is discharged to the outside. It is important for maintenance.
  • the portable gas analyzer is covered with a cover or housed in a box, the heat exhausted from the inside of the casing is hindered, and it is difficult to stabilize the temperature inside the casing within the range where the performance can be maintained.
  • the present invention has been made in view of the above-mentioned problems, and its main object is to enable dust-proofing or drip-proofing of a connector provided on the back surface without impairing heat dissipation. ..
  • the portable gas analyzer is a portable gas analyzer that accommodates an analysis device for analyzing gas and the analysis device, and has the analysis device on the front surface.
  • An operation unit for operating the device is provided, and between the casing provided with the piping, wiring, or power supply connector of the analytical instrument on the back surface and the back surface facing the back surface of the casing. It is characterized by forming a gap and providing a dust-proof or drip-proof rear cover that covers the connector.
  • a dust-proof or drip-proof rear cover is provided so as to face the back surface of the casing and cover the connector, so that the connector can be dust-proof or drip-proof. be able to.
  • the dust-proof or drip-proof rear cover forms a gap with the back surface portion, heat is exchanged through the gap portion, so that the heat dissipation property on the back surface portion is not impaired.
  • the casing side of the rear cover is provided with a gutter portion that receives water droplets that infiltrate between the back surface portion and the rear cover.
  • the gutter portion is continuous with a horizontal gutter portion extending left and right at the upper part of the back surface portion and extending vertically on at least one of the left and right sides of the back surface portion. It is desirable to have a downspout. With this configuration, in the gap between the rear cover and the back surface portion, a horizontal trough portion is provided on the upper portion of the back surface portion where water droplets such as rain easily enter, so that the intrusion of water droplets can be suitably prevented. Further, since the vertical gutter portion is continuously provided in the horizontal gutter portion, the water flowing from the horizontal gutter portion can prevent the back portion from getting wet and allow the water to flow to the lower part of the casing.
  • the rear cover receives the water flowing through the gutter portion and drains the water below the lower end portion of the gutter portion. It is desirable to have a gutter. Since the water from the gutter portion is guided to the lower side of the casing by this discharge portion, the height of the water rebounding on the ground or the like can be lowered, and the casing is less likely to get wet.
  • one or a plurality of ridges extending to the left and right of the back surface portion are formed, and the upward surface of the ridges is an inclined surface having a downward slope. Is desirable. With this configuration, the water adhering to the outer surface of the rear cover can easily flow down and the appearance can be improved. It is also possible to increase the mechanical strength of the rear cover.
  • Some portable gas analyzers have ventilation slits formed on at least one of the left and right side surface portions of the casing.
  • a dustproof or drip-proof side cover that covers the ventilation slit is further provided, and the side cover covers the upper part of the ventilation slit without a gap and opens below the ventilation slit. Is desirable to form.
  • the operation unit is a touch panel type display.
  • the casing has a frame member surrounding the touch panel display, and a protective film is provided on the back surface of the frame member so as to close the opening to which the touch panel display is exposed. It is desirable that it is.
  • the portable gas analyzer 100 of the present embodiment is, for example, portable with one hand, and its mass is, for example, 30 kg or less. Further, the portable gas analyzer 100 analyzes the concentration of a predetermined component contained in, for example, the atmosphere or exhaust gas such as engine exhaust gas and flue exhaust gas.
  • the portable gas analyzer 100 includes an analysis device 2 for analyzing gas and a casing 3 for accommodating the analysis device 2.
  • the analytical instrument 2 can simultaneously measure, for example, the concentrations of NO X , SO 2 , CO, CO 2 , and O 2 in the gas.
  • the analytical instrument 2 includes an analytical instrument 2a using a chemical emission method (CLD) for measuring the NO X concentration and a non-dispersion for measuring the SO 2 concentration, the CO concentration or the CO 2 concentration.
  • CLD chemical emission method
  • analytical instruments 2b using the infrared absorption method (NDIR) and magnetic force type, zirconia type, or electrode type analytical instruments 2c for measuring O 2 concentration.
  • NDIR infrared absorption method
  • the component to be measured by the analytical instrument 2 is not limited to the above, and may be one that measures the concentration of any one component, one that uses another principle, or another component. It may be the one that measures the concentration of.
  • the casing 3 has, for example, a substantially rectangular parallelepiped shape that accommodates the above-mentioned analytical instrument 2.
  • An operation unit 4 for operating the analysis device 2 is provided on the front surface 3F of the casing 3, and the piping, wiring, power supply connectors 5, 6, etc. of the analysis device 2 are provided on the back surface 3R.
  • the connector 5 of the pipe includes, for example, a connector for a sample gas inlet, a connector for a calibration gas inlet, a connector for other gas inlets, a connector for an exhaust gas outlet, and a connector for a drain water outlet.
  • the upper surface portion 3T of the casing 3 is provided with a handle 3H for facilitating carrying.
  • the operation unit 4 of the present embodiment is a touch panel type display, and operation buttons such as measurement buttons and calibration buttons are displayed on the display, and the concentration of each measurement component is displayed. Further, the operation unit 4 is provided on the front surface portion 3F of the casing 3 so as to face diagonally upward, so that the user can easily operate the operation unit 4 and the displayed contents can be easily visually recognized.
  • An input signal from the operation unit 4 is sent to a control unit (not shown), and the control unit controls the analysis device 2 to control the concentration of the component to be measured in the gas or the analysis device 2. Calibration is performed.
  • Analytical equipment 2d such as an oxidizing agent, a dehumidifying agent, and an adsorbent necessary for measuring the concentration of each component is connected to the connector 5 of the pipe provided on the back surface 3R of the casing 3. Further, a power cable (not shown) from an external power source is connected to the power connector 6. In addition, for example, a cooling fan 7 for heat dissipation of an electronic cooler is provided on the back surface 3R, a connector 8 for signal transmission (for wiring), and a power switch 9 for a portable gas analyzer 100 are also provided. Has been done.
  • the portable gas analyzer 100 of the present embodiment has a dust-proof or drip-proof rear cover 10 provided on the back surface 3R of the casing 3.
  • the rear cover 10 covers the connectors 5, 6, 8, the exhaust fan 7, and the power switch 9, and is dust-proof or drip-proof.
  • the rear cover 10 is also dust-proof or drip-proof for the casing component fitting portion (for example, the portion where the sheet metal overlaps with the sheet metal) on the back surface of the casing.
  • the rear cover 10 faces the back surface portion 3R of the casing 3 and forms a gap S with the back surface portion 3R.
  • the rear cover 10 of the present embodiment collectively covers the connectors 5, 6, 8, the exhaust fan 7, and the power switch 9 by covering substantially the entire back surface portion 3R (see FIG. 2).
  • a notch 10k for taking out a power cable or the like to the outside is formed on the lower side of the rear cover 10.
  • the rear cover 10 is attached to the back surface portion 3R of the casing 3 by the cover frame 11. Further, the rear cover 10 is rotatably attached to the cover frame 11 by, for example, a hinge, and the cover position P covered by the rear cover 10 facing the back surface 3R and the rear cover 10 opening the back surface 3R are open. It is configured to be movable to and from the position Q.
  • a gutter portion 12 for receiving water droplets infiltrating between the back surface portion 3R and the rear cover 10 is provided.
  • the gutter portion 12 is formed by using the cover frame 11.
  • the gutter portion 12 mainly receives water droplets that infiltrate through the upper gap between the back surface portion 3R and the rear cover 10, and extends to the left and right on the upper side portion of the back surface portion 3R. It has a horizontal gutter portion 121 and a vertical gutter portion 122 that is continuous with the horizontal gutter portion 121 and extends vertically on the left and right side portions of the back surface portion 3R.
  • the gutter portion 12 has, for example, a U-shaped cross section.
  • one or a plurality of ridges 101 extending to the left and right of the back surface portion 3R are formed on the outer surface of the rear cover 10 opposite to the casing 3.
  • the upward surface of the ridge 101 is an inclined surface 101x having a downward slope, and in the present embodiment, the vertical cross-sectional shape of the ridge 101 has a substantially triangular shape.
  • the rear cover 10 has a discharge portion 102 that receives the water flowing through the gutter portion 12 and drains the water below the lower end portion of the gutter portion 12.
  • the discharge portion 102 is an inclined surface 102x located below the lower end portion of the gutter portion 12 (specifically, the lower end portion of the downspout portion 122), and the water from the gutter portion 12 is the inclined surface 102x. It flows to the lower end portion of the rear cover 10 along the above, and flows down to the installation surface of the portable gas analyzer 100.
  • a ventilation slit 31 is formed in at least one of the left and right side surface portions of the casing 3 (both in the present embodiment), and the portable gas analysis of the present embodiment is formed.
  • the device 100 further includes a dust-proof or drip-proof side cover 13 that covers the ventilation slit 31.
  • the side cover 13 covers the upper portion and the left and right side portions of the ventilation slit 31 without a gap, and forms an opening 13h below the ventilation slit 31.
  • a protective cover (not shown) for imparting impact resistance to the casing 3 is provided on the outer side of the side cover 13.
  • the impact-resistant protective cover is open to the left and right side surface portions of the casing 3 in the front-rear direction and in the top-bottom direction.
  • a sealing member is provided at a portion where water is expected to enter, or the inside of the casing 3 is caulked to prevent dust or drip.
  • hard plastic is used for some sealing members instead of packing such as rubber.
  • the casing 3 has a frame member 301 surrounding the touch panel display 4 and a casing main body 302.
  • a protective film 14 made of resin is provided on the back surface of the frame member 301 so as to close the opening where the touch panel display 4 is exposed.
  • the protective film 14 is in close contact with the surface of the touch panel display 4 in a state where the touch panel display 4 is fixed.
  • the frame member 301 is assembled to the casing main body 302 by being fixed to the structural material provided inside the casing main body 302.
  • a resin sealing member 15 such as urethane is provided on the inner surface of the frame member 301 facing the outer surface of the casing main body 302, so that the maintainability can be improved while maintaining the performance of the seal member 15.
  • the connectors 5, 6, 8 and the cooling fan 7 and the power switch 9 are covered with dustproof or proof so as to face the back surface 3R of the casing 3 and cover the connectors 5, 6, 8 and the power switch 9. Since the rear cover 10 for dripping is provided, it is possible to make the connectors 5, 6, 8 and the cooling fan 7 and the power switch 9 dust-proof or drip-proof.
  • the dust-proof or drip-proof rear cover 10 forms a gap S with the back surface portion 3R, heat is exchanged through the gap S, so that heat dissipation in the back surface portion 3R is improved. There is no loss.
  • the horizontal gutter portion 121 is provided above the back surface portion 3R where water droplets such as rain easily enter, so that the intrusion of water droplets is suitably prevented. be able to. Further, since the vertical gutter portion 122 is continuously provided on the horizontal gutter portion 121, the water flowing from the horizontal gutter portion 121 can be allowed to flow to the lower part of the casing 3 while preventing the back surface portion 3R from getting wet.
  • the rear cover 10 has a discharge portion 102 that receives the water flowing through the gutter portion 12 and drains the water below the lower end portion of the gutter portion 12, the water flowing from the gutter portion 12 causes the back surface portion 3R and the like. It is possible to further prevent the casing 3 from getting wet. Since the water from the gutter portion 12 is guided to the lower side of the casing 3 by the discharge portion 102, the height of the water rebounding on the ground or the like can be lowered, and the casing 3 is less likely to get wet.
  • one or more ridges 101 are formed on the outer surface of the rear cover 10 and the upward surface of the ridges 101 is an inclined surface 101x having a downward slope, the water adhering to the outer surface of the rear cover 10 is drained well. The appearance can be improved. It is also possible to increase the mechanical strength of the rear cover.
  • the gutter portion 12 provided on the inner surface of the rear cover 10 has a configuration having one gutter portion 121 and two downspout portions 122, but one gutter portion 121 and one end portion of the one horizontal gutter portion 121. It may be configured to have one continuous downspout portion 122.
  • the rear cover 10 of the above-described embodiment has a configuration having the ridges 101 extending to the left and right, it may be a configuration without the ridges 101. Further, the outer surface of the rear cover 10 may be water-repellent. In order to further improve heat dissipation, it may have ridges made of a material such as aluminum.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

La présente invention concerne un dispositif d'analyse de gaz portable 100 qui peut être transporté et qui permet une protection contre la poussière ou l'étanchéité à l'égouttement d'un connecteur disposé sur une partie de surface arrière sans perte de performance de dissipation de chaleur, le dispositif d'analyse de gaz portable 100 comprenant : un dispositif d'analyse 2 pour analyser un gaz ; un boîtier 3 dans lequel est logé le dispositif d'analyse 2, une partie d'actionnement pour faire fonctionner le dispositif d'analyse 2 étant disposée sur une partie de surface avant 3F du boîtier 3, et des connecteurs 5, 6, 8 pour la tuyauterie, le câblage ou l'alimentation électrique du dispositif d'analyse 2 étant disposés sur une partie de surface arrière 3R du boîtier 3 ; et un couvercle arrière 10 pour la protection contre la poussière ou l'étanchéité à l'égouttement, le capot arrière 10 recouvrant les connecteurs 5, 6, 8, faisant face à la partie de surface arrière 3R du boîtier 3, et formant un espace S par rapport à la partie de surface arrière 3R.
PCT/JP2021/031138 2020-09-30 2021-08-25 Dispositif d'analyse de gaz portable WO2022070693A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE212021000473.3U DE212021000473U1 (de) 2020-09-30 2021-08-25 Tragbare Gasanalysevorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020164507A JP2024004494A (ja) 2020-09-30 2020-09-30 可搬型ガス分析装置
JP2020-164507 2020-09-30

Publications (1)

Publication Number Publication Date
WO2022070693A1 true WO2022070693A1 (fr) 2022-04-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/031138 WO2022070693A1 (fr) 2020-09-30 2021-08-25 Dispositif d'analyse de gaz portable

Country Status (3)

Country Link
JP (1) JP2024004494A (fr)
DE (1) DE212021000473U1 (fr)
WO (1) WO2022070693A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210514239U (zh) * 2019-07-24 2020-05-12 嘉兴朗坤检测有限公司 一种便携式烟气分析仪
JP2020144080A (ja) * 2019-03-08 2020-09-10 日本電波工業株式会社 可搬型ガス分析装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005003470A (ja) 2003-06-11 2005-01-06 Horiba Ltd 換気機能を有する装置
JP2012189549A (ja) 2011-03-14 2012-10-04 Horiba Ltd 分析装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020144080A (ja) * 2019-03-08 2020-09-10 日本電波工業株式会社 可搬型ガス分析装置
CN210514239U (zh) * 2019-07-24 2020-05-12 嘉兴朗坤检测有限公司 一种便携式烟气分析仪

Also Published As

Publication number Publication date
JP2024004494A (ja) 2024-01-17
DE212021000473U1 (de) 2023-08-22

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