EP1748249A2 - Fourniture de dioxide de carbone sans bulles - Google Patents

Fourniture de dioxide de carbone sans bulles Download PDF

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Publication number
EP1748249A2
EP1748249A2 EP06013862A EP06013862A EP1748249A2 EP 1748249 A2 EP1748249 A2 EP 1748249A2 EP 06013862 A EP06013862 A EP 06013862A EP 06013862 A EP06013862 A EP 06013862A EP 1748249 A2 EP1748249 A2 EP 1748249A2
Authority
EP
European Patent Office
Prior art keywords
consumer
liquid
condenser
carbon dioxide
supply line
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.)
Withdrawn
Application number
EP06013862A
Other languages
German (de)
English (en)
Other versions
EP1748249A3 (fr
Inventor
Helmut Meinass
Ernst Miklos
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Publication of EP1748249A2 publication Critical patent/EP1748249A2/fr
Publication of EP1748249A3 publication Critical patent/EP1748249A3/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • F17C2221/01—Pure fluids
    • F17C2221/013—Carbon dioxide
    • 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
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/013—Single phase liquid
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0146—Two-phase
    • F17C2225/0153—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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/033—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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/04—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by other properties of handled fluid after transfer
    • F17C2225/042—Localisation of the filling point
    • F17C2225/046—Localisation of the filling point in the liquid
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
    • F17C2227/0353—Heat exchange with the fluid by cooling using another fluid using cryocooler
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • 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
    • F17C2260/03—Dealing with losses
    • F17C2260/031—Dealing with losses due to heat transfer
    • 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
    • F17C2260/05—Improving chemical properties
    • F17C2260/056—Improving fluid characteristics
    • 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
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use

Definitions

  • the invention relates to a method and a device for providing bubble-free, liquid carbon dioxide according to the preambles of claims 1 and 5.
  • This supply has the disadvantage that it does not work at high outside temperatures (above the critical point of CO 2 ) works.
  • a liquid sampling directly from a CO 2 bottle with dip tube or from a CO 2 cylinder racks with the dip tubes in the bottles a part of the liquid evaporates in the extraction hose or in the sampling line, whereby the cleaning effect is reduced.
  • all piping areas that are separated with shut-off valves must be equipped with safety valves. The gas must be safely discharged to the outside. With large blow-off quantities is to be expected because the CO 2 is present as a liquid in the line. This type of construction is therefore relatively complicated and expensive.
  • the object of the invention is therefore to propose a supply device and a supply method, which provide less expensive always bubble-free CO 2 .
  • Characteristic of the invention is that gaseous CO 2 is used to supply the consumers. This gas is routed via normal supply lines to the consumption points. At the point of consumption or shortly before, the gaseous CO 2 is liquefied or condensed according to the invention by cooling in a condenser. The liquefied CO 2 is then supplied to the consumer via a short supply line. Due to the complete condensation and the subsequent subcooling of the CO 2 , for example, a lot of CO 2 snow is produced during the expansion in the consumer. Thereby, the cleaning effect when the CO 2 snow is used for cleaning, is greatly increased. It has been shown that the supply pressure can be below the normal CO 2 flask pressure. Instead of approx. 50 bar cylinder pressure, 10-30 bar line pressure is sufficient to achieve a good cleaning result.
  • the CO 2 is supercooled in the condenser to avoid post-evaporation.
  • the supercooling can be slight, ie 4-15 ° C, in order to avoid re-evaporation to the consumer safely.
  • the line between the capacitor and the load should be as short as possible. It is preferably in the range between 100 and 300 cm. It can also be isolated. But does not have to, if the flow velocity is relatively high and the temperature difference is relatively low.
  • the process is particularly suitable if a pressure-reducing nozzle is provided as a consumer, since controlled operation of the expansion nozzle is now possible when liquid carbon dioxide is always supplied.
  • expansion nozzle is used to clean objects, e.g. for cleaning welding nozzles, such as MIG or MAG burners.
  • These nozzles often adhere to splashes, particles or condensates, which must be removed as quickly as possible in order not to impair the cycle times of the production too much. Since the cleaning process sometimes takes less than a second (0.5 sec recommended by the manufacturer), it is important to be able to provide liquid phase from the beginning.
  • An apparatus for carrying out the method according to the invention has a reservoir from which CO 2 is removed in gaseous form. Via the supply line, the CO 2 is fed in gaseous form to a condenser, which is located shortly before the consumer and liquefies the CO 2 and possibly subcooled.
  • the distance between the capacitor and the load is as small as possible. It is preferably 100 to 300 cm in order to ensure a mobility of the consumer without the condenser must be moved with.
  • the storage of the CO 2 can be carried out either in a CO 2 bottle, via CO 2 -bottle or a CO 2 tank in which the gas is liquefied and is then brought into the gaseous phase via a separate evaporator.
  • the gas can also be taken from an existing CO 2 line, as it already exists in many welding companies.
  • a pressure regulator can be provided between the storage container and the supply line, if desired.
  • any conventional condenser for CO 2 can be used. Particular preference is given to using a condenser with an electrically operated cooling unit, since electric current is present practically at every workstation.
  • a liquid CO 2 purification system is particularly preferably used, to which the CO 2 is supplied in liquid form.
  • liquid CO 2 is released in a nozzle with a valve and is then blown as a mixture of snow gas onto an object to be cleaned.
  • This article may, for example, be an MIG / MAG torch which is to be cleared of welding spray residues.
  • FIG. 1 shows the principle of supplying a consumer for cleaning welding nozzles.
  • the figure shows the CO 2 storage tank 1, in which liquid CO 2 is stored.
  • An evaporator 2 can bring this liquid into the gaseous state.
  • the CO 2 bundle 3 and the CO 2 bottle 4 are shown.
  • a low-pressure tank is used and attached to the evaporator 2, a unit for increasing the pressure.
  • Each of the three storage options then leads to the supply line 6, wherein this supply line 6, a pressure regulator 5 may be connected upstream.
  • the supply line 6 leads to the condenser 8, in which the CO 2 is liquefied and is then passed via a CO 2 liquid line 9 to the consumer.
  • the consumer here is the liquid CO 2 purification system 10 with a controllable valve and a pressure relief nozzle.
  • the supply line 6 can optionally accomplish the supply of other consumers via a further line 7.
  • a further line 7 for example, a welding shop.
  • the CO2 which has been relieved in the release nozzle, is directed onto the welding torch, whereby adhering weld spatters are released by temperature stress and blown out with the gas jet.
  • the liquid CO 2 purification system 10 is associated with a compressed air supply line 11, is optionally passed from the compressed air after CO2 blasting in the expansion nozzle. With the additional compressed air jet, remaining spatters can be blown out without the burner being too cold.
  • the CO 2 is present in gaseous form in the relatively long supply line 6 and is liquefied in the condenser 8 shortly before the consumer 10.
  • the CO 2 liquid line 9 is then relatively short: This eliminates the otherwise relatively large problems, liquid to supply CO 2 -leading lines with Abblasamba in the environment. The total supply is therefore cheaper than previous alternatives.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cleaning In General (AREA)
  • Treating Waste Gases (AREA)
  • Carbon And Carbon Compounds (AREA)
EP06013862A 2005-07-28 2006-07-04 Fourniture de dioxide de carbone sans bulles Withdrawn EP1748249A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005035432A DE102005035432A1 (de) 2005-07-28 2005-07-28 Bereitstellen blasenfreien Kohlendioxids

Publications (2)

Publication Number Publication Date
EP1748249A2 true EP1748249A2 (fr) 2007-01-31
EP1748249A3 EP1748249A3 (fr) 2010-09-01

Family

ID=37308820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06013862A Withdrawn EP1748249A3 (fr) 2005-07-28 2006-07-04 Fourniture de dioxide de carbone sans bulles

Country Status (3)

Country Link
US (1) US20070028648A1 (fr)
EP (1) EP1748249A3 (fr)
DE (1) DE102005035432A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007038709A1 (de) 2007-08-14 2009-02-19 Linde Ag Vorrichtung und Verfahren zum Verflüssigen von Prozessmedien
EP3500394A1 (fr) * 2016-08-17 2019-06-26 Stahlkontor GmbH + Co. KG Procédé de soudage hybride laser/mig-mag d'éléments structuraux à grains fins et à haute résistance, avec une conduction thermique par induction ciblée

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1521385A (en) * 1921-08-29 1924-12-30 Messer Adolf Device for the production of compressed oxygen from liquid oxygen
NL133404C (fr) * 1963-08-02
US3360944A (en) * 1966-04-05 1968-01-02 American Messer Corp Gas liquefaction with work expansion of major feed portion
DE2929709A1 (de) * 1979-07-21 1981-02-12 Messer Griesheim Gmbh Vorrichtung zum unterkuehlen von unter druck stehenden, tiefsiedenden verfluessigten gasen
CH656560A5 (de) * 1982-03-19 1986-07-15 Castolin Sa Verfahren zum auftragen einer schutzschicht durch thermisches spritzen.
US4498303A (en) * 1983-07-06 1985-02-12 Heichberger Albert N Carbon dioxide liquification system
JPH0622224B2 (ja) * 1988-03-05 1994-03-23 大阪酸素工業株式会社 パーティクルが少ないか又は含まない液化二酸化炭素の供給
JP3277340B2 (ja) * 1993-04-22 2002-04-22 日本酸素株式会社 半導体製造工場向け各種ガスの製造方法及び装置
US6938439B2 (en) * 2003-05-22 2005-09-06 Cool Clean Technologies, Inc. System for use of land fills and recyclable materials
US7069742B2 (en) * 2004-01-19 2006-07-04 Air Products And Chemicals, Inc. High-pressure delivery system for ultra high purity liquid carbon dioxide

Also Published As

Publication number Publication date
EP1748249A3 (fr) 2010-09-01
DE102005035432A1 (de) 2007-02-01
US20070028648A1 (en) 2007-02-08

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