JPS6467587A - Raw-material air precooling method of air liquefying separator - Google Patents
Raw-material air precooling method of air liquefying separatorInfo
- Publication number
- JPS6467587A JPS6467587A JP22476287A JP22476287A JPS6467587A JP S6467587 A JPS6467587 A JP S6467587A JP 22476287 A JP22476287 A JP 22476287A JP 22476287 A JP22476287 A JP 22476287A JP S6467587 A JPS6467587 A JP S6467587A
- Authority
- JP
- Japan
- Prior art keywords
- water
- cooling
- cooling tower
- water washing
- air
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04157—Afterstage cooling and so-called "pre-cooling" of the feed air upstream the air purification unit and main heat exchange line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
- F25J2205/32—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes as direct contact cooling tower to produce a cooled gas stream, e.g. direct contact after cooler [DCAC]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
PURPOSE: To precool the material air while reducing pressure loss by branching cooling wafer being introduced to a water washing cooling tower into two directions after being boosted through a pump, introducing one of them to the intermediate stage of the water washing cooling tower and the other to the upper section of the water washing cooling tower after being cooled through a chiller. CONSTITUTION: Cooling water C being introduced to a water washing cooling tower 20 is branched into two directions after being boosted through a pump 11 and one of them is introduced, under normal temperature, to a cooling water introducing section 22a at the intermediate stage of the water washing cooling tower 20 while the other 15 introduced from a cooling water introducing section 22b at the upper stage after being cooled through a chiller 23. Flow rate of the cooling water C being introduced to the water washing cooling tower 20 is regulated by valves 24, 25 and returned from the lower section of the water washing cooling tower 20 through a valve 12 to a cooling water facility such as a water receiving tank or a cooling tower, after cooling maternal air A. Since only the cooling water being introduced to the upper stage is cooled down through a chiller, required heat exchanging quantity of refrigerant can be reduced, pressure loss can be suppressed through direct heat exchanging system and unit power of compressor for material air can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22476287A JPS6467587A (en) | 1987-09-08 | 1987-09-08 | Raw-material air precooling method of air liquefying separator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22476287A JPS6467587A (en) | 1987-09-08 | 1987-09-08 | Raw-material air precooling method of air liquefying separator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6467587A true JPS6467587A (en) | 1989-03-14 |
Family
ID=16818836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22476287A Pending JPS6467587A (en) | 1987-09-08 | 1987-09-08 | Raw-material air precooling method of air liquefying separator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6467587A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7536873B2 (en) | 2005-02-11 | 2009-05-26 | Linde Aktiengesellschaft | Process and device for cooling a gas by direct heat exchange with a cooling liquid |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61246575A (en) * | 1985-04-24 | 1986-11-01 | 株式会社日立製作所 | Method of cooling air as raw material |
-
1987
- 1987-09-08 JP JP22476287A patent/JPS6467587A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61246575A (en) * | 1985-04-24 | 1986-11-01 | 株式会社日立製作所 | Method of cooling air as raw material |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7536873B2 (en) | 2005-02-11 | 2009-05-26 | Linde Aktiengesellschaft | Process and device for cooling a gas by direct heat exchange with a cooling liquid |
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