DE2250411C3 - Einrichtung zum Steuern des Flüssigkeitsstandes im Sumpf einer unteren Säule einer Luftzerlegungsanlage - Google Patents
Einrichtung zum Steuern des Flüssigkeitsstandes im Sumpf einer unteren Säule einer LuftzerlegungsanlageInfo
- Publication number
- DE2250411C3 DE2250411C3 DE19722250411 DE2250411A DE2250411C3 DE 2250411 C3 DE2250411 C3 DE 2250411C3 DE 19722250411 DE19722250411 DE 19722250411 DE 2250411 A DE2250411 A DE 2250411A DE 2250411 C3 DE2250411 C3 DE 2250411C3
- Authority
- DE
- Germany
- Prior art keywords
- liquid level
- output signal
- column
- lower column
- signal
- 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.)
- Expired
Links
- 239000007788 liquid Substances 0.000 title claims description 38
- 238000000926 separation method Methods 0.000 title claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005070 sampling Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
- F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low pressure column
-
- 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
- F25J3/04406—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 using a dual pressure main column system
- F25J3/04412—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 using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
-
- 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
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
- F25J3/04812—Different modes, i.e. "runs" of operation
- F25J3/04836—Variable air feed, i.e. "load" or product demand during specified periods, e.g. during periods with high respectively low power costs
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Non-Electrical Variables (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Feedback Control In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8014871A JPS4846387A (enrdf_load_stackoverflow) | 1971-10-13 | 1971-10-13 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2250411A1 DE2250411A1 (de) | 1973-04-26 |
| DE2250411B2 DE2250411B2 (de) | 1977-09-22 |
| DE2250411C3 true DE2250411C3 (de) | 1978-05-24 |
Family
ID=13710184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722250411 Expired DE2250411C3 (de) | 1971-10-13 | 1972-10-13 | Einrichtung zum Steuern des Flüssigkeitsstandes im Sumpf einer unteren Säule einer Luftzerlegungsanlage |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS4846387A (enrdf_load_stackoverflow) |
| DE (1) | DE2250411C3 (enrdf_load_stackoverflow) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS576282A (en) * | 1980-06-14 | 1982-01-13 | Kobe Steel Ltd | Air separator |
| JPS6223301U (enrdf_load_stackoverflow) * | 1985-07-22 | 1987-02-12 | ||
| JPS62123279A (ja) * | 1985-11-22 | 1987-06-04 | 株式会社日立製作所 | 空気分離装置の制御方法 |
| DE4127224C2 (de) * | 1991-05-11 | 1997-09-18 | Foerster Hans Dr Ing | Verfahren zur Kälteerzeugung mit Luft als Kältemittel und Kälteträger |
| FR2704632B1 (fr) * | 1993-04-29 | 1995-06-23 | Air Liquide | Procede et installation pour la separation de l'air. |
| US5406800A (en) * | 1994-05-27 | 1995-04-18 | Praxair Technology, Inc. | Cryogenic rectification system capacity control method |
-
1971
- 1971-10-13 JP JP8014871A patent/JPS4846387A/ja active Pending
-
1972
- 1972-10-13 DE DE19722250411 patent/DE2250411C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2250411B2 (de) | 1977-09-22 |
| DE2250411A1 (de) | 1973-04-26 |
| JPS4846387A (enrdf_load_stackoverflow) | 1973-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3003821C2 (de) | Vorrichtung zum Regeln der Durchflußmenge | |
| EP0293669B1 (de) | Gerät zum Insufflieren von Gas in eine Körperhöhle | |
| DE2361042C3 (de) | Vorrichtung zum Kühlen schnellauf enden Walzdrahtes | |
| DE3632176A1 (de) | Steuerung eines systems zur trennung der bestandteile des einem spender "in vivo" entnommenen blutes | |
| EP0010584A1 (de) | Vorrichtung zur Drucküberwachung | |
| DE2250411C3 (de) | Einrichtung zum Steuern des Flüssigkeitsstandes im Sumpf einer unteren Säule einer Luftzerlegungsanlage | |
| DE4207144A1 (de) | Verfahren zur regelung von waermeuebertragern | |
| DE2246556C3 (de) | Regelungsanordnung für den Zwischenerhitzer eines Dampfturbinen-Kraftwerkes | |
| DE2513924A1 (de) | Automatische regeleinrichtung fuer die kristallherstellung | |
| DE3344599C1 (de) | Resorptions-Wärmewandleranlage | |
| DE3202476C2 (de) | Vorrichtung zum Regeln der Temperatur in einem Ofen | |
| DE19818691C1 (de) | Verfahren zur Regelung einer Umkehrosmoseanlage | |
| DE3247838C2 (enrdf_load_stackoverflow) | ||
| DE2612885B2 (de) | Verfahren zum Angleichen der Temperatur in den einzelnen Elementen eines Wärmetauschers | |
| DE2332968B2 (de) | Vorrichtung zur Steuerung des durchmessers eines Halbleiterstabes | |
| DE3003917A1 (de) | Einrichtung zum ueberwachen und regeln der schmelzflussdicke bei einer stranggiessmaschine fuer metalle mit einer wanderkokille | |
| DE1901088A1 (de) | Verfahren und Vorrichtung zur Prozesssteuerung | |
| EP3979882A1 (de) | System und verfahren zur herstellung eines extrakts | |
| DE1964273B2 (de) | Verfahren und Vorrichtung zur Steuerung des Wärmeübergangs an einen länglichen Körper | |
| DE1588581C3 (de) | Sich selbst einstellender Regler | |
| DE3609180C1 (de) | Verfahren und Vorrichtung zum intermittierenden Reinigen von Eindampfanlagen | |
| DE2653214A1 (de) | Verfahren und anordnung zum steuern des trockenmassegehalts an einer verdampferbatterie | |
| DE966921C (de) | Verfahren und Vorrichtung zur Gewinnung von Naphthalin in Warmpressgutqualitaet | |
| DE915920C (de) | Anordnung zur Regelung der Dicksaftdichte bei mehrstufigen Verdampfanlagen in Zuckerfabriken | |
| DE3323358C1 (de) | Verfahren und Vorrichtung zur Kammerdruckregelung von Verkokungsöfen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8328 | Change in the person/name/address of the agent |
Free format text: STREHL, P., DIPL.-ING. DIPL.-WIRTSCH.-ING. SCHUEBEL-HOPF, U., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 8000 MUENCHEN |