EP1379807A1 - Method and device for storing liquids and liquefied gases - Google Patents
Method and device for storing liquids and liquefied gasesInfo
- Publication number
- EP1379807A1 EP1379807A1 EP02761893A EP02761893A EP1379807A1 EP 1379807 A1 EP1379807 A1 EP 1379807A1 EP 02761893 A EP02761893 A EP 02761893A EP 02761893 A EP02761893 A EP 02761893A EP 1379807 A1 EP1379807 A1 EP 1379807A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixture
- composition
- liquefied gases
- calibration
- liquid phase
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007789 gas Substances 0.000 title claims description 31
- 239000007788 liquid Substances 0.000 title claims description 11
- 239000000203 mixture Substances 0.000 claims abstract description 70
- 239000007791 liquid phase Substances 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract 4
- 239000003507 refrigerant Substances 0.000 claims description 3
- 239000012071 phase Substances 0.000 abstract description 10
- 239000000470 constituent Substances 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 description 3
- RWRIWBAIICGTTQ-UHFFFAOYSA-N anhydrous difluoromethane Natural products FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 description 2
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C6/00—Methods and apparatus for filling vessels not under pressure with liquefied or solidified gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/038—Refrigerants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/043—Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0447—Composition; Humidity
- F17C2250/0452—Concentration of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/02—Improving properties related to fluid or fluid transfer
- F17C2260/024—Improving metering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/02—Mixing fluids
Definitions
- the invention relates to a method and a device for ensuring a constant mixture composition in the storage of liquids and liquefied gases.
- Liquids or liquefied gases are stored in closed containers, from which they are transferred to other containers, which in turn can serve as storage containers for filling in even smaller containers.
- the composition of the gaseous or liquid phase can thus vary depending on the temperature of the mixture and the ratio between the gas and liquid volumes.
- the composition of the mixture changes in the gas phase and also in the liquid phase. This change in the composition can lead to the mixture composition no longer corresponding to the filled composition of the mixture.
- This problem arises, for example, in the storage of liquefied gases for refrigeration.
- azeotropic mixtures and zeotropic mixtures are used in refrigeration technology. In zeotropic mixtures the compositions of the gas phase and the liquid phase in equilibrium are not the same.
- the refrigerant R407C contains HFC32, HFC125 and HFC134a in a weight ratio of 23:25:52 with a tolerance of ⁇ 2% by weight per component according to ARI 700 / ASHRAE 34 / DIN 8960. If this zeotropic mixture is stored in a conventional container and this When the liquid phase is removed from the container, it is found that there is an enrichment of HFCl3 a in the liquid phase and a depletion of the other two components. Accordingly, HFC134a is depleted in the gas phase and the other two components are enriched. This shift in the composition is undesirable since it can lead to associated malfunctions in the refrigeration system which is set to a specific mixture composition. The planned cooling capacity, for example, cannot be achieved.
- JP 8-4997 describes a method with which the changes in concentration during the storage of liquefied gases and their removal from the storage containers can be avoided. According to this method, either an inert gas or the gas component of the liquefied gas mixture, which has the lower boiling point and is therefore enriched in the gas phase, is pressed into the storage container simultaneously with the gas removal.
- the object of the invention is to provide a method and a device in which the problems mentioned no longer occur.
- the object is achieved by the method according to the invention and the associated device.
- the inventive method is suitable for storing liquids and liquefied gases, in particular for storing liquefied gases, e.g. B. of pressure-liquefied zeotropic gas mixtures, in particular zeotropic refrigerants.
- the method according to the invention is characterized in that the change in the gas phase composition is determined by means of a differential pressure sensor which is connected to a container in which there is a calibration mixture and the storage container.
- the original mixture composition in particular the liquid phase, is restored by metering in the gas components that have the higher partial pressure.
- the dosing continues until the pressure difference value exceeds the previously defined pressure difference range in the other direction.
- the pressure difference between the calibration mixture and the gas phase in the storage container is determined by means of the differential pressure sensor used.
- differential pressure transducer for. B. a mechanical display device, an electronic sensor or a U-tube can be used.
- the components of the mixture to be stored are used as the calibration mixture.
- the composition of the calibration mixture depends on the tolerable composition of the liquid phase of the mixture in the storage tank.
- HFC407c is stored in a closed bulk container.
- the liquid is phase removed.
- a mixture of HFC32 and HFC125 is replenished in the storage tank. This continues until the pressure in the storage tank has reached an upper limit which can be read off via the differential pressure sensor.
- differential pressure transducer works very precisely and is available as an electronic component, it is possible to link the measuring points with an online process control.
- the differential pressure sensor and the container for the calibration mixture can be attached next to, on or in the storage container.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10118361 | 2001-04-12 | ||
DE10118361A DE10118361A1 (en) | 2001-04-12 | 2001-04-12 | Storage of liquids and liquefied gases, especially zeotropic mixtures, controls composition on basis of vapor pressures exerted |
PCT/EP2002/003057 WO2002084168A1 (en) | 2001-04-12 | 2002-03-20 | Method and device for storing liquids and liquefied gases |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1379807A1 true EP1379807A1 (en) | 2004-01-14 |
EP1379807B1 EP1379807B1 (en) | 2004-11-24 |
Family
ID=7681423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02761893A Expired - Lifetime EP1379807B1 (en) | 2001-04-12 | 2002-03-20 | Method and device for storing liquids and liquefied gases |
Country Status (14)
Country | Link |
---|---|
US (1) | US6910337B2 (en) |
EP (1) | EP1379807B1 (en) |
KR (1) | KR20040005900A (en) |
CN (1) | CN1273762C (en) |
AR (1) | AR032950A1 (en) |
AT (1) | ATE283446T1 (en) |
BR (1) | BR0208872A (en) |
DE (2) | DE10118361A1 (en) |
ES (1) | ES2232771T3 (en) |
IL (1) | IL158330A0 (en) |
MY (1) | MY124839A (en) |
PT (1) | PT1379807E (en) |
TW (1) | TW524950B (en) |
WO (1) | WO2002084168A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003251872A1 (en) * | 2002-07-12 | 2004-02-02 | Honeywell International, Inc. | Method and apparatus to minimize fractionation of fluid blend during transfer |
DE102006016554A1 (en) * | 2006-04-07 | 2007-10-11 | L'Air Liquide, S.A. a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude | Method for filling at least one compressed gas container with at least one gas, intermediate piece for connecting to an opening of a compressed gas container and compressed gas cylinder fitting |
US8444873B2 (en) * | 2009-06-12 | 2013-05-21 | Solvay Fluor Gmbh | Refrigerant composition |
US9999528B2 (en) | 2013-03-14 | 2018-06-19 | University Of Utah Research Foundation | Stent with embedded pressure sensors |
EP3636982B1 (en) | 2018-10-09 | 2021-08-04 | Weiss Technik GmbH | Method and device for providing zeotropic coolant |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2390694A (en) * | 1943-02-06 | 1945-12-11 | Westinghouse Electric Corp | Apparatus and method for charging containers with volatile mixtures |
US3668882A (en) * | 1970-04-29 | 1972-06-13 | Exxon Research Engineering Co | Refrigeration inventory control |
US4445366A (en) * | 1982-06-01 | 1984-05-01 | Carrier Corporation | Pressure differential gage and a method for detecting the presence of noncondensible gases in a refrigeration system |
US5186012A (en) * | 1991-09-24 | 1993-02-16 | Institute Of Gas Technology | Refrigerant composition control system for use in heat pumps using non-azeotropic refrigerant mixtures |
US5285648A (en) * | 1992-10-21 | 1994-02-15 | General Electric Company | Differential pressure superheat sensor for low refrigerant charge detection |
US5709093A (en) * | 1996-06-27 | 1998-01-20 | Alliedsignal Inc. | Process for minimizing compositional changes |
JPH10259898A (en) * | 1997-01-14 | 1998-09-29 | Daikin Ind Ltd | Method for transferring and filling liquefied gas |
US6000230A (en) * | 1997-08-19 | 1999-12-14 | Showa Denko K.K. | Method for dividing and charging of non-azeotropic mixed refrigerant |
-
2001
- 2001-04-12 DE DE10118361A patent/DE10118361A1/en not_active Withdrawn
-
2002
- 2002-02-27 TW TW091103691A patent/TW524950B/en not_active IP Right Cessation
- 2002-03-05 AR ARP020100789A patent/AR032950A1/en active IP Right Grant
- 2002-03-12 MY MYPI20020887A patent/MY124839A/en unknown
- 2002-03-20 ES ES02761893T patent/ES2232771T3/en not_active Expired - Lifetime
- 2002-03-20 KR KR10-2003-7012583A patent/KR20040005900A/en not_active Application Discontinuation
- 2002-03-20 WO PCT/EP2002/003057 patent/WO2002084168A1/en not_active Application Discontinuation
- 2002-03-20 CN CNB028080483A patent/CN1273762C/en not_active Expired - Fee Related
- 2002-03-20 AT AT02761893T patent/ATE283446T1/en not_active IP Right Cessation
- 2002-03-20 DE DE50201625T patent/DE50201625D1/en not_active Expired - Fee Related
- 2002-03-20 BR BR0208872-0A patent/BR0208872A/en not_active IP Right Cessation
- 2002-03-20 IL IL15833002A patent/IL158330A0/en unknown
- 2002-03-20 EP EP02761893A patent/EP1379807B1/en not_active Expired - Lifetime
- 2002-03-20 PT PT02761893T patent/PT1379807E/en unknown
-
2003
- 2003-10-14 US US10/683,467 patent/US6910337B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO02084168A1 * |
Also Published As
Publication number | Publication date |
---|---|
US6910337B2 (en) | 2005-06-28 |
CN1527921A (en) | 2004-09-08 |
BR0208872A (en) | 2004-10-19 |
AR032950A1 (en) | 2003-12-03 |
IL158330A0 (en) | 2004-05-12 |
ES2232771T3 (en) | 2005-06-01 |
CN1273762C (en) | 2006-09-06 |
TW524950B (en) | 2003-03-21 |
US20040134201A1 (en) | 2004-07-15 |
PT1379807E (en) | 2005-01-31 |
EP1379807B1 (en) | 2004-11-24 |
MY124839A (en) | 2006-07-31 |
ATE283446T1 (en) | 2004-12-15 |
KR20040005900A (en) | 2004-01-16 |
DE10118361A1 (en) | 2002-10-24 |
DE50201625D1 (en) | 2004-12-30 |
WO2002084168A1 (en) | 2002-10-24 |
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