US20120275936A1 - Air compressor - Google Patents

Air compressor Download PDF

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Publication number
US20120275936A1
US20120275936A1 US13/450,024 US201213450024A US2012275936A1 US 20120275936 A1 US20120275936 A1 US 20120275936A1 US 201213450024 A US201213450024 A US 201213450024A US 2012275936 A1 US2012275936 A1 US 2012275936A1
Authority
US
United States
Prior art keywords
air
compressing device
adsorbent
heat exchanger
dehumidifying rotor
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.)
Abandoned
Application number
US13/450,024
Other languages
English (en)
Inventor
Tamotsu Fujioka
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.)
Anest Iwata Corp
Original Assignee
Anest Iwata Corp
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 Anest Iwata Corp filed Critical Anest Iwata Corp
Assigned to ANEST IWATA CORPORATION reassignment ANEST IWATA CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUJIOKA, TAMOTSU
Publication of US20120275936A1 publication Critical patent/US20120275936A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08—Cooling; Heating; Preventing 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

Definitions

  • the present invention relates to an air compressor for supplying compressed dry air and particularly to an air compressor sucking dry air and discharging low-dew-point compressed air.
  • JP2007-7540A discloses an air compressor in which air compressed by the compressor is cooled by a freezing cycle to allow vapor in the compressed air to be condensed for dehumidifying.
  • JP2006-6989A discloses a hollow membrane air drier in which a polymer hollow membrane through which vapor is likely to permeate is disposed in a casing, and compressed air is supplied from a compressor to the hollow membrane so that only vapor permeates the hollow membrane to allow dehumidified compressed air to be discharged.
  • an object of the present invention to provide an air compressor in which its structure is simple and air is dehumidified by a dehumidifying rotor before compression to reduce consumed power for dehumidification, avoiding necessity for a condensate processor and supplying compressed air continuously.
  • an air compressor comprising:
  • FIG. 1 is a view showing air flow in an air compressor according to the present invention.
  • FIG. 2 is a perspective view of the air compressor.
  • an air compressor comprises a compressing device 1 in which first air is compressed; a motor 2 for driving the compressing device 1 ; a heat exchanger 3 for cooling the first air compressed by and transferred from the compressing device 1 ; a blower 4 for blowing second air as cooling wind to the heat exchanger 4 ; and a cylindrical dehumidifying rotor 5 for adsorbing moisture from the first air sucked into the compressing device 1 .
  • the compressing device 1 sucks the first air which is dehumidified with the dehumidifying rotor 5 from an sucking tube 6 , and the first air compressed by the compressing device is transferred to the heat exchanger 3 via a first conduit 7 .
  • the heat exchanger 3 cools the first air conveyed from the first conduit 7 , by the second air as cooling wind which is blown from the blower 4 , conveys the first air to a second conduit 8 and supplies the second air heated by the heat exchanger 3 , to the dehumidifying rotor 5 .
  • the dehumidifying rotor 5 is disposed across an intake path 9 through which the first air sucked by the compressing device 1 flows, and a discharge path 11 through which the second air blown from the blower 4 and heated by the heat exchanger 3 flows.
  • the dehumidifying rotor 5 is rotated by a motor 12 .
  • the dehumidifying rotor 5 may be rotated by the motor 12 via a belt 13 wound on the outer circumference of the dehumidifying rotor 5 , or via a gear or an elastic roller such as rubber between the dehumidifying rotor 5 and a rotary shaft of the motor 12 .
  • the dehumidifying rotor 5 carries an adsorbent containing silica gel or zeolite as main component adsorbing moisture in the air.
  • the moisture in the absorbent of in the dehumidifying rotor 5 is removed by the second air heated by the heat exchanger 3 .
  • the dehumidifying rotor 5 rotates circumferentially to allow the adsorbent to move from an adsorbing area 14 for adsorbing moisture to a restoration area 15 where moisture is removed.
  • the dehumidifying rotor 5 comprises the adsorbing area 14 through which the intake path 9 passes and the restoration area 15 through which the discharge path 11 passes.
  • the first air which flows in from the air inlet 16 is supplied in the adsorbing area 14 to dehumidify the first air.
  • the second air passes through the restoration area 15 and is sent to an air outlet 17 thereby restoring the adsorbent so that the adsorbent can adsorb moisture more effectively.
  • Silica gel or zeolite may be used as adsorbent in the dehumidifying rotor 5 .
  • Silica gel and zeolite have different moisture absorbency depending on each porosity. For example, in zeorite, moisture absorbency rises sharply at relative humidity in which vapor pressure of water is low. When relative humidity becomes more than 10%, increase ratio in moisture absorbency becomes small significantly. Meanwhile, in silica gel, moisture absorbency increase gently with increase in relative humidity, and moisture absorbency significantly increases in high relative humidity area.
  • silica gel is carried in the dehumidifying rotor 5 .
  • zeolite may preferably be carried in the dehumidifying rotor 5 .
  • the air compressor provides a dehumidifying cycle for air, comprising the dehumidifying step for taking the first air in through the air inlet 16 by sucking air by the compressing device 1 and dehumidifying the first air by the dehumidifying rotor 5 ; the compression step for sucking the first air into the compressing device 1 via the sucking tube 6 ; the cooling step for allowing the first air compressed by the compressing device 1 to pass through the first conduit 7 to cool the first air by the heat exchanger 3 ; and the discharging step for discharging the first air, from the heat exchanger 2 to the second conduit 8 .
  • the air compressor provides a restoring cycle comprising the cooling step for blowing the second air blown by the blower 4 from the outside to the heat exchanger 3 ; the restoring step for restoring the adsorbent in the restoration area 15 of the dehumidifying rotor 5 by the second air heated by the heat exchanger 3 ; and the discharge step for discharging the second air from the restoration area 15 to the air outlet 17 .
  • the cylindrical dehumidifying rotor in this invention may preferably be a honeycomb rotor that carries high dehumidifying zeolite or silica gel a rotor-like honeycomb structure wound or layered by manufacturing inflammable inorganic fibers such as ceramic fibers into cardboards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Gases (AREA)
  • Compressor (AREA)
  • Central Air Conditioning (AREA)
US13/450,024 2011-04-26 2012-04-18 Air compressor Abandoned US20120275936A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011097838A JP2012229641A (ja) 2011-04-26 2011-04-26 空気圧縮装置
JPJP2011-097838 2011-04-26

Publications (1)

Publication Number Publication Date
US20120275936A1 true US20120275936A1 (en) 2012-11-01

Family

ID=47053354

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/450,024 Abandoned US20120275936A1 (en) 2011-04-26 2012-04-18 Air compressor

Country Status (3)

Country Link
US (1) US20120275936A1 (zh)
JP (1) JP2012229641A (zh)
CN (1) CN102758760A (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106369725A (zh) * 2016-11-11 2017-02-01 广电计量检测（北京）有限公司 发动机性能试验用新风处理装置及方法
KR101874995B1 (ko) * 2017-04-07 2018-07-06 한국지역난방공사 지역난방열을 이용한 배기가스 내 이산화탄소 포집용 추기 및 전처리 시스템
CN111398574B (zh) * 2020-03-04 2021-08-27 河南大学 一种利用土壤生物对污染土壤毒性试验装置
TWI796848B (zh) * 2021-11-25 2023-03-21 周俊鈺 一體式前置熱回收空氣壓縮機系統

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490201A (en) * 1966-08-05 1970-01-20 Oliver D Colvin Method and apparatus for drying gases
US3592563A (en) * 1968-12-30 1971-07-13 Westinghouse Air Brake Co Filter purging apparatus
US4886769A (en) * 1987-06-10 1989-12-12 Kabushiki Kaisha Seibu Giken Active gas adsorbing element and method of manufacturing
US5683532A (en) * 1990-08-12 1997-11-04 Kabushiki Kaisha Seibu Giken Method of manufacturing an active silica gel honeycomb adsorbing body usable in an atmosphere having 100% relative humidity
US5937667A (en) * 1997-04-24 1999-08-17 Advanced Thermal Technologies, Llc System for the dehumidification of cooled air
US6210132B1 (en) * 1996-09-20 2001-04-03 Hitachi, Ltd. Partition means for directing air flow over a cooler in an oilless scroll compressor
US6820681B2 (en) * 2000-10-05 2004-11-23 Mitsubishi Paper Mills Limited Heating regeneration type organic rotor member and method for producing the same
US20060067841A1 (en) * 2004-09-30 2006-03-30 Tsutomu Itou Fluid machine
US7166149B2 (en) * 2004-01-12 2007-01-23 Uop Llc Adsorption process for continuous purification of high value gas feeds
US20070295215A1 (en) * 2006-06-23 2007-12-27 Industrial Technology Research Institute Rotor replacing mechanism for rotary desiccant
US7326277B1 (en) * 2004-04-14 2008-02-05 Uop Llc Brake air drying using low pressure desiccant wheel
US7708538B2 (en) * 2006-07-19 2010-05-04 Hitachi Industrial Equipment Systems Co., Ltd. Oil free screw compressor
US7789942B2 (en) * 2006-01-12 2010-09-07 Atlas Copco Airpower, Naamloze Vennootschap Method and device for drying a gas
US20110056220A1 (en) * 2009-06-08 2011-03-10 Mario Caggiano PH2OCP - portable water and climatic production system
US8043414B2 (en) * 2008-03-17 2011-10-25 Industrial Technology Research Institute Method and apparatus for desorption and dehumidifier using the same
US8187368B2 (en) * 2009-01-12 2012-05-29 Industrial Technology Research Institute Low power consuming desorption apparatus and dehumidifier using the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61252880A (ja) * 1985-05-01 1986-11-10 Orion Mach Co Ltd 空気圧縮装置
JPS6456974A (en) * 1987-08-26 1989-03-03 Hitachi Ltd Dehumidifying device for air compressor
JP3842476B2 (ja) * 1999-02-23 2006-11-08 高砂熱学工業株式会社 乾式減湿システム
JP2001029731A (ja) * 1999-07-26 2001-02-06 Seibu Giken Co Ltd 空気圧縮機
CN2419520Y (zh) * 2000-03-23 2001-02-14 锡山市西漳除湿设备厂 转芯设置冷却区的转轮除湿机
KR100550660B1 (ko) * 2000-09-21 2006-02-08 다이킨 고교 가부시키가이샤 가습장치 및 그것을 이용한 공기조화기
JP3606854B2 (ja) * 2002-09-02 2005-01-05 株式会社カナモト 高湿度燃料ガスの圧縮供給装置
KR100504503B1 (ko) * 2003-01-14 2005-08-01 엘지전자 주식회사 공기조화시스템
CN1924506B (zh) * 2005-09-02 2011-04-06 房磊 转轮再生吸附式空气净化器
CN100494793C (zh) * 2007-09-13 2009-06-03 上海交通大学 可利用低品位热源的两级转轮除湿空调装置
JP2010247093A (ja) * 2009-04-16 2010-11-04 Erubu:Kk 除湿材及び除湿装置

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490201A (en) * 1966-08-05 1970-01-20 Oliver D Colvin Method and apparatus for drying gases
US3592563A (en) * 1968-12-30 1971-07-13 Westinghouse Air Brake Co Filter purging apparatus
US4886769A (en) * 1987-06-10 1989-12-12 Kabushiki Kaisha Seibu Giken Active gas adsorbing element and method of manufacturing
US5683532A (en) * 1990-08-12 1997-11-04 Kabushiki Kaisha Seibu Giken Method of manufacturing an active silica gel honeycomb adsorbing body usable in an atmosphere having 100% relative humidity
US6210132B1 (en) * 1996-09-20 2001-04-03 Hitachi, Ltd. Partition means for directing air flow over a cooler in an oilless scroll compressor
US5937667A (en) * 1997-04-24 1999-08-17 Advanced Thermal Technologies, Llc System for the dehumidification of cooled air
US6820681B2 (en) * 2000-10-05 2004-11-23 Mitsubishi Paper Mills Limited Heating regeneration type organic rotor member and method for producing the same
US7166149B2 (en) * 2004-01-12 2007-01-23 Uop Llc Adsorption process for continuous purification of high value gas feeds
US7326277B1 (en) * 2004-04-14 2008-02-05 Uop Llc Brake air drying using low pressure desiccant wheel
US20060067841A1 (en) * 2004-09-30 2006-03-30 Tsutomu Itou Fluid machine
US7789942B2 (en) * 2006-01-12 2010-09-07 Atlas Copco Airpower, Naamloze Vennootschap Method and device for drying a gas
US20070295215A1 (en) * 2006-06-23 2007-12-27 Industrial Technology Research Institute Rotor replacing mechanism for rotary desiccant
US7708538B2 (en) * 2006-07-19 2010-05-04 Hitachi Industrial Equipment Systems Co., Ltd. Oil free screw compressor
US8043414B2 (en) * 2008-03-17 2011-10-25 Industrial Technology Research Institute Method and apparatus for desorption and dehumidifier using the same
US8187368B2 (en) * 2009-01-12 2012-05-29 Industrial Technology Research Institute Low power consuming desorption apparatus and dehumidifier using the same
US20110056220A1 (en) * 2009-06-08 2011-03-10 Mario Caggiano PH2OCP - portable water and climatic production system

Also Published As

Publication number Publication date
CN102758760A (zh) 2012-10-31
JP2012229641A (ja) 2012-11-22

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ANEST IWATA CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUJIOKA, TAMOTSU;REEL/FRAME:028086/0746

Effective date: 20120404

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION