MX2021000645A - Instalacion de compresor con dispositivo secador para gas comprimido y metodo para secar gas comprimido. - Google Patents

Instalacion de compresor con dispositivo secador para gas comprimido y metodo para secar gas comprimido.

Info

Publication number
MX2021000645A
MX2021000645A MX2021000645A MX2021000645A MX2021000645A MX 2021000645 A MX2021000645 A MX 2021000645A MX 2021000645 A MX2021000645 A MX 2021000645A MX 2021000645 A MX2021000645 A MX 2021000645A MX 2021000645 A MX2021000645 A MX 2021000645A
Authority
MX
Mexico
Prior art keywords
compressed gas
drying
drying device
compressor installation
heat
Prior art date
Application number
MX2021000645A
Other languages
English (en)
Inventor
Geert Rudolf A Hellemans
Danny Etienne A Vertriest
Original Assignee
Atlas Copco Airpower Nv
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 Atlas Copco Airpower Nv filed Critical Atlas Copco Airpower Nv
Publication of MX2021000645A publication Critical patent/MX2021000645A/es

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/16—Filtration; Moisture separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/104—Alumina
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/80—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/06—Polluted air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40001—Methods relating to additional, e.g. intermediate, treatment of process gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/265—Drying gases or vapours by refrigeration (condensation)

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Drying Of Gases (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

Instalación de compresor con dispositivo secador para gas comprimido, con el dispositivo secador (6) que contiene un alojamiento (7) con una zona de secado (8) y una zona de regeneración (14); por lo cual en el alojamiento (7) se ajusta de manera giratoria un tambor (13) con un agente de secado; y por lo cual la línea de presión (5) comprende un intercambiador de calor (11) para enfriar el gas comprimido antes de que entre a la zona de secado (8), por lo cual un tubo de derivación (18) se conecta a la línea de descarga (17) que se conecta a una entrada de enfriamiento (19) del intercambiador de calor (11), en tanto que el intercambiador de calor (11) comprende adicionalmente una salida de enfriamiento (20) que se conecta a la entrada (15) de la zona de regeneración (14), en tanto que la salida (16) de la zona de regeneración (14) se conecta a la línea de presión (5).
MX2021000645A 2016-10-25 2017-10-23 Instalacion de compresor con dispositivo secador para gas comprimido y metodo para secar gas comprimido. MX2021000645A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2016/5804A BE1024396B1 (nl) 2016-10-25 2016-10-25 Compressorinstallatie met drooginrichting voor samengeperst gas en werkwijze voor het drogen van samengeperst gas.

Publications (1)

Publication Number Publication Date
MX2021000645A true MX2021000645A (es) 2021-03-25

Family

ID=57249624

Family Applications (2)

Application Number Title Priority Date Filing Date
MX2017013615A MX2017013615A (es) 2016-10-25 2017-10-23 Instalacion de compresor con dispositivo secador para gas comprimido y metodo para secar gas comprimido.
MX2021000645A MX2021000645A (es) 2016-10-25 2017-10-23 Instalacion de compresor con dispositivo secador para gas comprimido y metodo para secar gas comprimido.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
MX2017013615A MX2017013615A (es) 2016-10-25 2017-10-23 Instalacion de compresor con dispositivo secador para gas comprimido y metodo para secar gas comprimido.

Country Status (16)

Country Link
US (2) US10576411B2 (es)
EP (2) EP3446770B1 (es)
JP (1) JP6643295B2 (es)
KR (2) KR102285104B1 (es)
CN (2) CN113385002B (es)
AU (2) AU2017235984B2 (es)
BE (1) BE1024396B1 (es)
CA (1) CA2981211C (es)
ES (1) ES2898514T3 (es)
HU (1) HUE056851T2 (es)
MX (2) MX2017013615A (es)
PL (1) PL3446770T3 (es)
PT (1) PT3446770T (es)
RU (1) RU2685126C2 (es)
UA (1) UA123091C2 (es)
ZA (1) ZA201706855B (es)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3108953T3 (pl) * 2015-06-25 2022-10-10 Ateliers François Sposób sprężania i suszenia gazu
BE1024396B1 (nl) * 2016-10-25 2018-02-13 Atlas Copco Airpower Naamloze Vennootschap Compressorinstallatie met drooginrichting voor samengeperst gas en werkwijze voor het drogen van samengeperst gas.
DE102018125792A1 (de) * 2018-10-17 2020-04-23 Hochschule Karlsruhe-Technik Und Wirtschaft Verfahren zum Gewinnen von Wasser und Wassergewinnungsvorrichtung
KR102179325B1 (ko) * 2019-03-20 2020-11-16 한국화학연구원 에너지 절약형 에어드라이어 및 이를 이용한 건조공기 제조방법
US20220001328A1 (en) * 2018-10-29 2022-01-06 Korea Research Institute Of Chemical Technology Energy-saving air dryer, and method for producing dry air using the same
CN109630381B (zh) * 2019-01-09 2021-01-05 苏州佳世达电通有限公司 热回收系统
BE1027110B1 (nl) * 2019-03-12 2020-10-12 Atlas Copco Airpower Nv Compressorinstallatie en werkwijze voor het leveren van samengeperst gas.
BE1027361B1 (nl) * 2019-06-12 2021-01-20 Atlas Copco Airpower Nv Compressorinstallatie en werkwijze voor het leveren van samengeperst gas
BE1027364B1 (nl) * 2019-06-12 2021-01-20 Atlas Copco Airpower Nv Drooginrichting en werkwijze voor het drogen van een samengeperst gas
US20220193603A1 (en) * 2019-06-12 2022-06-23 Atlas Copco Airpower, Naamloze Vennootschap Drying device and method for drying a compressed gas
BE1027363B1 (nl) * 2019-06-12 2021-01-20 Atlas Copco Airpower Nv Compressorinstallatie en werkwijze voor het leveren van samengeperst gas
BE1027358B1 (nl) * 2019-06-12 2021-01-18 Atlas Copco Airpower Nv Drooginrichting en werkwijze voor het drogen van gas en compressorinrichting voorzien van dergelijke drooginrichting
BE1027508B1 (nl) * 2019-08-16 2021-03-17 Atlas Copco Airpower Nv Droger voor samengeperst gas en compressorinstallatie voorzien van droger
BE1027506B1 (nl) * 2019-08-16 2021-03-15 Atlas Copco Airpower Nv Droger voor samengeperst gas, compressorinstallatie voorzien van droger en werkwijze voor het drogen van samengeperst gas
BE1027505B1 (nl) * 2019-08-16 2021-03-15 Atlas Copco Airpower Nv Droger voor samengeperst gas, compressorinstallatie voorzien van droger en werkwijze voor het drogen van samengeperst gas.
BE1027507B1 (nl) * 2019-08-16 2021-03-17 Atlas Copco Airpower Nv Droger voor samengeperst gas, compressorinstallatie voorzien van droger en werkwijze voor het drogen van samengeperst gas
US20220274054A1 (en) * 2019-08-16 2022-09-01 Atlas Copco Airpower, Naamloze Vennootschap Dryer for compressed gas, compressor installation provided with a dryer and a method for drying compressed gas
BE1027511B1 (nl) * 2019-08-16 2021-03-17 Atlas Copco Airpower Nv Droger voor samengeperst gas, compressorinstallatie voorzien van droger en werkwijze voor het drogen van samengeperst gas
CA3145105A1 (en) * 2019-08-16 2021-02-25 Atlas Copco Airpower N.V. Dryer for compressed gas, compressor installation provided with a dryer and a method for drying compressed gas.
CN112807905B (zh) * 2021-02-02 2023-11-21 山东鲁班建设集团总公司 一种市政施工用除尘装置及其使用方法
US20220341412A1 (en) * 2021-04-24 2022-10-27 Atlas Copco (India) Ltd. Compressed air generation plant
CN113074466A (zh) * 2021-04-29 2021-07-06 山西山安蓝天节能科技股份有限公司 一种适用于回收电厂余热的大温差多级压缩纯质热泵系统
CN113531661B (zh) * 2021-05-21 2022-11-11 机械工业第九设计研究院股份有限公司 一种可循环360度散热的暖通空调散热机构
CN114876769B (zh) * 2022-05-10 2024-01-09 江苏万邦节能科技股份有限公司 一种空压机余热回收装置

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE345813B (es) * 1969-12-01 1972-06-12 Munters C
SE365720B (es) 1971-08-06 1974-04-01 Atlas Copco Ab
US3815375A (en) * 1973-07-06 1974-06-11 Vortec Corp Pressure regulating refrigerative air dryer system
US4249915A (en) * 1979-05-30 1981-02-10 Air Products And Chemicals, Inc. Removal of water and carbon dioxide from air
US4487617A (en) * 1983-08-22 1984-12-11 The Bendix Corporation Mechanism for cleaning and drying compressed gases
JPS6125623A (ja) 1984-07-13 1986-02-04 Orion Mach Co Ltd 圧縮気体の除湿方法
SU1397067A1 (ru) * 1986-07-07 1988-05-23 Казанское научно-производственное объединение "Нефтепромавтоматика" Устройство автоматического управлени процессом очистки газа в адсорберах
US5213593A (en) * 1989-01-06 1993-05-25 Pall Corporation Pressure swing sorption system and method
DE3915673A1 (de) * 1989-05-13 1990-11-15 Zander Aufbereitungstechnik Warmregenerierende adsorptionsanlage fuer feuchte und gasfoermige medien mit zweiphasiger regeneration
RU2001662C1 (ru) * 1990-03-14 1993-10-30 Балашихинское научно-производственное объединение криогенного машиностроени им.40-лети Окт бр Способ осушки сжатого газа
FR2661841B1 (fr) * 1990-05-09 1992-07-17 Air Liquide Procede et appareil d'epuration par adsorption d'air destine a etre distille.
DE4135887A1 (de) * 1991-10-31 1993-05-06 Wolfram Dr. 4040 Neuss De Seiler Vorrichtung zum abtauen von kaeltetrocknern unter 0(grad) c
BE1005764A3 (nl) 1992-04-15 1994-01-18 Atlas Copco Airpower Nv Inrichting voor het drogen van een gas.
JPH06343818A (ja) * 1993-06-04 1994-12-20 Kobe Steel Ltd 乾式除湿装置
JPH09173758A (ja) * 1995-12-21 1997-07-08 Toho Kako Kensetsu Kk 高沸点溶剤回収装置
BE1010132A3 (nl) * 1996-04-02 1998-01-06 Atlas Copco Airpower Nv Werkwijze en inrichting voor het drogen van een door een compressor samengeperst gas.
JP3594463B2 (ja) * 1997-10-15 2004-12-02 株式会社西部技研 ガス吸着装置
US6221130B1 (en) * 1999-08-09 2001-04-24 Cooper Turbocompressor, Inc. Method of compressing and drying a gas and apparatus for use therein
BE1013441A3 (nl) 2000-05-17 2002-01-15 Atlas Copco Airpower Nv Compressorinstallatie voorzien van een adsorptiedroger en adsorptiedroger daarvoor.
BE1013828A3 (nl) 2000-11-08 2002-09-03 Atlas Copco Airpower Nv Werkwijze voor het regelen van een compressorinstallatie met een droger en daarbij gebruikte compressorinstallatie.
RU2212270C2 (ru) * 2001-11-05 2003-09-20 Кошелев Александр Михайлович Способ работы осушителя газа и осушитель газа
JP3896343B2 (ja) * 2003-04-25 2007-03-22 東京エレクトロン株式会社 乾燥空気供給装置
AT413080B (de) * 2004-04-29 2005-11-15 Arbeiter Peter Trocknungsvorrichtung
BE1016939A3 (nl) 2006-01-12 2007-10-02 Atlas Copco Airpower Nv Verbeterde werkwijze voor het drogen van een gas en inrichting daarbij toegepast.
EP1912033A1 (en) * 2006-10-12 2008-04-16 Nederlandse Organisatie voor Toegepast-Natuuurwetenschappelijk Onderzoek TNO Process for controlling the moisture content of a supply gas for use in drying a product
BE1018586A3 (nl) 2009-08-11 2011-04-05 Atlas Copco Airpower Nv Inrichting en werkwijze voor het drogen van gas.
BE1018854A3 (nl) * 2009-08-11 2011-10-04 Atlas Copco Airpower Nv Droger voor samengeperst gas en werkwijze daarbij toegepast.
BE1018590A3 (nl) 2009-10-30 2011-04-05 Atlas Copco Airpower Nv Inrichting voor het comprimeren en drogen van gas en een daarbij toegepaste werkwijze.
EP2332631B1 (de) 2009-12-03 2012-11-14 Kaeser Kompressoren GmbH Adsorptionstrocknungsvorrichtung sowie Adsorptionstrocknungsverfahren
AT509475B1 (de) * 2010-03-03 2012-01-15 Wittmann Kunststoffgeraete Verfahren zum trocknen von schüttgut
CN102218255A (zh) * 2010-04-16 2011-10-19 李俊仁 干燥机与干燥机的干燥再生方法
WO2012147153A1 (ja) * 2011-04-26 2012-11-01 株式会社西部技研 吸着式除湿機
US9186623B2 (en) * 2013-03-13 2015-11-17 Roger's Machinery Company, Inc. Recycled purge air dryer system and method of use
DE202014007507U1 (de) * 2013-09-18 2014-12-12 Atlas Copco Airpower N.V. Trockner für verdichtetes Gas und mit einem Trockner ausgestattete Verdichteranlage
BE1022637A9 (nl) 2014-12-16 2016-10-06 Atlas Copco Airpower Nv Droger voor samengeperst gas compressorinstallatie voorzien van zulke droger en werkwijze voor het drogen van gas
JP6343818B2 (ja) * 2016-06-02 2018-06-20 株式会社イクシス 光造形品へのめっき皮膜形成方法
BE1024396B1 (nl) * 2016-10-25 2018-02-13 Atlas Copco Airpower Naamloze Vennootschap Compressorinstallatie met drooginrichting voor samengeperst gas en werkwijze voor het drogen van samengeperst gas.

Also Published As

Publication number Publication date
AU2020200424A1 (en) 2020-02-13
JP6643295B2 (ja) 2020-02-12
KR102285104B1 (ko) 2021-08-03
AU2017235984B2 (en) 2020-03-05
AU2020200424B2 (en) 2021-11-11
KR20210091088A (ko) 2021-07-21
CN113385002A (zh) 2021-09-14
PT3446770T (pt) 2021-09-28
NZ736512A (en) 2019-03-29
US20200164301A1 (en) 2020-05-28
CN107970748A (zh) 2018-05-01
PL3446770T3 (pl) 2021-12-27
ZA201706855B (en) 2019-07-31
AU2017235984A1 (en) 2018-05-10
CA2981211A1 (en) 2018-04-25
JP2018069235A (ja) 2018-05-10
BR102017022220A2 (pt) 2018-07-31
UA123091C2 (uk) 2021-02-17
RU2017134924A (ru) 2019-04-04
EP3446770A1 (en) 2019-02-27
ES2898514T3 (es) 2022-03-07
US10576411B2 (en) 2020-03-03
BE1024396B1 (nl) 2018-02-13
KR20180045821A (ko) 2018-05-04
US11247166B2 (en) 2022-02-15
MX2017013615A (es) 2018-09-28
RU2685126C2 (ru) 2019-04-16
KR102350210B1 (ko) 2022-01-17
CN107970748B (zh) 2021-07-27
RU2017134924A3 (es) 2019-04-04
EP3915664A1 (en) 2021-12-01
US20180154302A1 (en) 2018-06-07
CA2981211C (en) 2020-09-01
CN113385002B (zh) 2023-05-23
BE1024396A1 (nl) 2018-02-07
EP3446770B1 (en) 2021-08-25
HUE056851T2 (hu) 2022-03-28

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