EP2708794A1 - Procédé et dispositif de conditionnement destinés à la préparation discontinue de dioxyde de carbone liquide - Google Patents

Procédé et dispositif de conditionnement destinés à la préparation discontinue de dioxyde de carbone liquide Download PDF

Info

Publication number
EP2708794A1
EP2708794A1 EP12184297.5A EP12184297A EP2708794A1 EP 2708794 A1 EP2708794 A1 EP 2708794A1 EP 12184297 A EP12184297 A EP 12184297A EP 2708794 A1 EP2708794 A1 EP 2708794A1
Authority
EP
European Patent Office
Prior art keywords
carbon dioxide
temperature
secondary circuit
heat exchanger
liquid carbon
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Withdrawn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
EP12184297.5A
Other languages
German (de)
English (en)
Inventor
Marc Sporing
Marcel Brouns
Dirk Meyer
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.)
Air Liquide Deutschland GmbH
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide Deutschland GmbH
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide Deutschland GmbH, Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide Deutschland GmbH
Priority to EP12184297.5A priority Critical patent/EP2708794A1/fr
Priority to PCT/EP2013/066739 priority patent/WO2014040806A1/fr
Publication of EP2708794A1 publication Critical patent/EP2708794A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/013—Carbone 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
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal 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
    • 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
    • F17C2225/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • F17C2225/035—High pressure, i.e. between 10 and 80 bars
    • 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
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • 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
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • F17C2227/0323—Heat exchange with the fluid by heating using another fluid in a closed loop
    • 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
    • F17C2227/0355—Heat exchange with the fluid by cooling using another fluid in a closed loop
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • 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
    • F17C2250/0439—Temperature
    • 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
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—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
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0631—Temperature
    • 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
    • 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 present invention relates to a process for the discontinuous supply and a conditioning device for the discontinuous temperature control of liquid carbon dioxide and a system for the discontinuous processing of carbon dioxide comprising such a conditioning device.
  • the invention relates to the discontinuous provision of liquid carbon dioxide for the production of carbon dioxide snow, which is used for cleaning surfaces of technical components.
  • the provided liquid carbon dioxide can be used to foam polymers.
  • liquid carbon dioxide In these applications, it is known to maintain the liquid carbon dioxide centrally in a storage container. For example, the liquid carbon dioxide is kept in a liquid state at a pressure of up to 22 bar and at an equilibrium temperature of approximately -16 ° C. in low-pressure tanks.
  • the various consumers generally require the liquid carbon dioxide at certain thermodynamic conditions different from those in the storage tank, whereby a plurality of consumers can be supplied with the carbon dioxide from the central storage tank.
  • liquid carbon dioxide is ideally needed at a temperature of 15 ° C and 60 bar, ie at a temperature just below the boiling point at this pressure. It is therefore known to deliver the liquid carbon dioxide from the storage tank and bring it to the desired pressure. Then, the pressurized liquid carbon dioxide is heated in a heat exchanger to the desired temperature and fed to a consumer. This process is very efficient with continuous delivery of liquid carbon dioxide.
  • the object of the invention is therefore to at least partially alleviate the problems described with reference to the prior art, and more particularly to a method and a conditioning apparatus for discontinuously providing liquid carbon dioxide and a Specify a plant for the discontinuous processing of carbon dioxide, in which at any time liquid carbon dioxide under specified conditions can be efficiently supplied to a consumer.
  • discontinuous provision is meant the intermittent supply of liquid carbon dioxide to the consumer.
  • the provisioning thus takes place intermittently, the interruptions may have a duration of a few seconds to a few days in time.
  • the liquid carbon dioxide is preferably stored in a low-pressure tank for up to 22 bar at a temperature between -15 and -18 ° C, wherein the low-pressure tank is preferably provided with a separate cooling unit or vacuum-insulated.
  • the liquid carbon dioxide from the storage container is conveyed by means of a pump, preferably a pump operated with compressed air, into a first line connected downstream in the flow direction of the liquid carbon dioxide.
  • the liquid carbon dioxide is conveyed through the first conduit into the heat exchanger and from there via a second conduit to the consumer.
  • the pressure is kept constant by means of a simple pressure control.
  • the temperature of the liquid carbon dioxide in the heat exchanger is brought to a predeterminable temperature.
  • the conveyed carbon dioxide flows through the heat exchanger from a first inlet to a first outlet and the secondary circulating medium heat exchanger from a second inlet to a second outlet.
  • the liquid carbon dioxide and the secondary circuit medium are in thermal contact via a heat exchange surface.
  • the temperature of the secondary circuit medium and / or the volume flow of the secondary circuit medium are adjusted so that the liquid carbon dioxide at the first outlet has the predeterminable temperature.
  • the secondary circuit medium is in particular part of a secondary circuit which has a pump, a heating unit and a cooling unit outside the heat exchanger.
  • the liquid carbon dioxide conditioned in the heat exchanger in this way is fed to a consumer in process step e), in particular a device for producing carbon dioxide snow for cleaning component surfaces or a device for foaming polymers.
  • a consumer in particular a device for producing carbon dioxide snow for cleaning component surfaces or a device for foaming polymers.
  • It is meant with almost the predetermined pressure and the predetermined temperature that especially the temperature of the liquid carbon dioxide on the way from the heat exchanger to the consumer can still change slightly, especially in the second line, for example by heat from the environment.
  • Preferred is an embodiment in which the pressure of the predeterminable pressure by at most 1 bar and the temperature of the predetermined temperature differs by at most 1 ° C [Celsius].
  • the predetermined temperature is a constant value.
  • the method thus achieves that the liquid carbon dioxide stored in a storage container, which optionally is under pressure in a supercooled state, can not only be heated to a temperature immediately below the boiling temperature at a corresponding pressure, but also that the carbon dioxide can be cooled can.
  • This is particularly advantageous when the temperature of the liquid carbon dioxide on the route between the storage container and the heat exchanger or the consumer during an interruption or by a very high ambient temperature has been raised to a temperature above the boiling point. In this case, the temperature of the carbon dioxide in the heat exchanger can be lowered to the optimum temperature required for the application. At the consumer, therefore, the liquid carbon dioxide is present at a constant temperature.
  • the secondary circuit medium is cooled during and / or after an interruption of the delivery.
  • the secondary circuit medium is cooled, in particular before resumption of the delivery, so that the liquid carbon dioxide between storage tank and heat exchanger, which was heated during the interruptions to a temperature above the predeterminable temperature, is cooled back to the predeterminable temperature for delivery to the consumer.
  • optimal conditions for the use of the liquid carbon dioxide are available to the consumer.
  • the predeterminable temperature is at most 4 ° C below the boiling point of the carbon dioxide at the predeterminable pressure, in particular at most 2 ° C below the boiling point.
  • the predeterminable temperature of the carbon dioxide can be achieved either by cooling or heating the secondary circuit medium.
  • the temperature difference between the predeterminable temperature and the temperature of the secondary circuit medium entering the heat exchanger is at most 2 ° C.
  • the temperature difference is at most 1 ° C.
  • the predeterminable temperature of the liquid carbon dioxide is present in particular at the first outlet of the heat exchanger. This has in particular the consequence that when changing from heating to cooling at a fixed predeterminable temperature, the temperature of the secondary circuit medium must be changed by a maximum of 4 ° C or 2 ° C. Accordingly, the heat exchange surface of the heat exchanger or the volume flow of the secondary circuit medium must be designed so that the predeterminable temperature of the carbon dioxide can be adjusted.
  • volume of the secondary circuit medium is meant the entire volume of the secondary circuit medium in the secondary circuit, preferably a brine.
  • the volume of liquid carbon dioxide in the heat exchanger is as large as the volume defined by the line for the liquid carbon dioxide through the heat exchanger.
  • the volume of carbon dioxide is the volume (inside) of the pipe in the heat exchanger.
  • the volume of the secondary circular medium has a size of from 10 l [liter] to 300 l, most preferably from 50 l to 100 l.
  • the mass flow of the carbon dioxide has a value of 20 kg / h [kilogram per hour] to 500 kg / h, most preferably from 100 kg / h to 300 kg / h.
  • the pipe designed as a pipe has a length of 10 m [meters] to 40 m, especially preferably from 20 m to 30 m with an outer tube diameter of 5 mm [millimeter] to 30 mm, most preferably from 8 mm to 15 mm.
  • the temperature and / or the volume flow of the secondary circuit medium is adjusted when entering the heat exchanger as a function of operating parameters of the consumer.
  • the operating parameters of the consumer are in particular its operating times.
  • the temperature of the secondary cycle medium can be adjusted in advance to the discontinuous feeding of the carbon dioxide.
  • the temperature of the secondary circuit medium can be cooled to a desired temperature shortly before restarting the consumer.
  • a liquid carbon dioxide discontinuous temperature conditioning apparatus comprising a heat exchanger and a secondary circuit, the heat exchanger having a first inlet and a first outlet for liquid carbon dioxide and a second inlet and a second outlet for a secondary circuit medium; the secondary circuit comprises the second inlet and the second outlet of the heat exchanger, wherein both a cooling unit and a heating unit are formed in the secondary circuit.
  • the secondary circuit thus comprises all lines and devices through which the secondary circuit medium flows during operation.
  • the pressurized at least partially liquid carbon dioxide enters the heat exchanger at the first inlet and exits the heat exchanger at the first outlet, with the carbon dioxide in the heat exchanger in thermal contact with the secondary circuit medium entering the heat exchanger through the second inlet and through the second outlet exits the heat exchanger.
  • the secondary circuit medium is cooled outside the heat exchanger with a cooling unit or heated with a heating unit.
  • Such a conditioning device makes it possible to bring pressurized at least partially liquid carbon dioxide to a predeterminable temperature, regardless of the temperature of the carbon dioxide at the first inlet.
  • the heat exchanger with respect to heat exchange surface, volume of the secondary circuit medium in the heat exchanger and volume of carbon dioxide in the heat exchanger dimensioned so that during operation, a temperature difference between the predetermined temperature and the temperature of the entering into the heat exchanger secondary circuit of at most 2 ° C, preferably of at most 0.5 ° C can be reached.
  • the heat exchange surface is the surface of the components that separate the liquid carbon dioxide and the secondary circuit medium and through which the heat exchange takes place.
  • the outer surface of the tube is the heat exchange surface.
  • an outer surface or an inner surface can be considered a heat exchange surface, in case of doubt the larger surface is the heat exchange surface.
  • the heating unit can be realized, for example, by a second heat exchanger through which a warm liquid flows, or preferably by an electrical heating device.
  • the cooling unit is realized in particular by a third heat exchanger with a relatively cold cooling liquid or preferably by an evaporator for the evaporation of a liquid.
  • the secondary circuit medium is a brine and the evaporator is an air evaporator, through which the brine is cooled.
  • a carbon dioxide discontinuous processing equipment comprising a storage vessel for storing liquid carbon dioxide, a liquid carbon dioxide delivery and pressurizing pump, a conditioning apparatus of the invention and a consumer, the pump being via a first conduit is connected to the first inlet and the first outlet is connected via a second line to the consumer.
  • the storage tank is preferably a low-pressure tank for up to 22 bar, which preferably stores the liquid carbon dioxide at a temperature between -15 and -18 ° C with a cooling unit or by a vacuum insulation.
  • the pump is preferably a compressed air operated pump via which comparatively little heat is introduced into the carbon dioxide. In operation, therefore, the stored liquid carbon dioxide is conveyed from the storage container via the first line to the heat exchanger and further via the second line to the consumer.
  • the consumer is in particular a device for producing carbon dioxide snow for cleaning a component surface or a device for foaming polymers.
  • liquid carbon dioxide can be adjusted to optimum parameters for consumer use at all times.
  • the first length of the first line is at least five times the second length of the second line, very particularly preferably at least ten times or even twenty times.
  • the storage container can be arranged relatively far away from the consumer and on the other hand that the conditioning device is arranged relatively close to the consumer.
  • the second length of the second conduit is relatively small, so that there is no significant effect on the temperature of the liquid carbon dioxide between the heat exchanger and the consumer.
  • the second length should be at most 5 m, preferably at most 2 m.
  • each conditioning device can be connected to exactly one or more consumers.
  • the number of conditioning devices is preferably selected so that the second length of the second lines from each heat exchanger to the consumer is as low as possible.
  • each conditioning device is connected to exactly two consumers.
  • a temperature sensor is integrated in the second line.
  • the temperature sensor is in particular arranged so that the temperature of the liquid carbon dioxide in the second line is measured. Due to the temperature measurement in the second line can be checked whether the predetermined temperature has been reached and if necessary, the secondary circuit can be readjusted.
  • the heat exchanger is dimensioned such that a temperature difference of 2 ° C between the temperature of the liquid carbon dioxide at the first outlet and the temperature of the secondary circuit medium at the second inlet sufficient to adjust the carbon dioxide to a predetermined temperature, the maximum 2 ° C below the boiling point of carbon dioxide at the pressure present in the heat exchanger.
  • the volume of the secondary circuit is designed so that the entire secondary circuit medium with a cooling power or heating power of 2000 to 9000 W [Watt] by at least 3 ° C within 5 minutes, most preferably within only 1 minute , can be changed. This has the consequence that when changing from heating to cooling, the temperature of the liquid carbon dioxide can be maintained at the predeterminable temperature without great delay.
  • control unit is provided, which is connected to the pump, the temperature sensor, the heating unit, the cooling unit and / or the consumer, and set up and equipped for carrying out the method according to the invention.
  • a system 1 for carrying out the method according to the invention comprises a storage container 2, a conditioning device 4 and a consumer 15.
  • the storage container 2 is fluidly connected via a pump 3 and a first line 16 having a first length 18 with the conditioning device 4.
  • the conditioning device 4 is further fluidly connected via a second line 17 having a second length 19 to the consumer 15.
  • the conditioning device 4 comprises a heat exchanger 5 and a secondary circuit 6.
  • the secondary circuit 6 comprises, in addition to the part of the heat exchanger 5 through which a secondary circuit medium flows, a heating unit 12, an evaporator 11 and a secondary circuit pump 23.
  • the entire space in the secondary circuit 6 filled by the secondary circuit medium has one Volume 14 on.
  • a second inlet 9 of the heat exchanger 5 and a second outlet 10 of the heat exchanger 5 is integrated.
  • the heat exchanger 5 also has a first inlet 7 for supplying liquid carbon dioxide and a first outlet 8 for discharging liquid carbon dioxide.
  • the first line 16 is connected to the first inlet 7 and the second line 17 is connected to the first outlet 8.
  • the control unit 21 is further connected to the pump 3, the secondary circuit pump 23, the evaporator 11 and the heating unit 12 and to the consumer 15.
  • the heat exchanger 5 has a heat exchange surface 13, over which the heat exchange between liquid carbon dioxide and secondary circuit medium takes place.
  • liquid carbon dioxide from the storage tank 2 from the pump 3 via the first line 16, the heat exchanger 5 and the second line 17 is conveyed to the consumer 15.
  • the pressure of the delivered carbon dioxide in the line 16, the heat exchanger 5 and the line 17 is adjusted by the pump 3 so that it assumes a predetermined value.
  • the temperature of the liquid carbon dioxide is set to a predeterminable value.
  • the secondary circuit medium is heated either with the heating unit 12 or cooled with the cooling unit 11.
  • the predeterminable temperature of the carbon dioxide achieved in this way is monitored by means of the temperature sensor 20.
  • the present invention makes it possible to condense by cooling the secondary circuit medium with the cooling unit 11 already in the first conduit 16 and optionally in the heat exchanger 5 vaporized carbon dioxide in the heat exchanger 5. This ensures that after restarting the consumer 15 liquid carbon dioxide is provided with predefinable parameters.
  • the predeterminable temperature is in particular only slightly smaller than the boiling point of the liquid carbon dioxide at the set pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon And Carbon Compounds (AREA)
EP12184297.5A 2012-09-13 2012-09-13 Procédé et dispositif de conditionnement destinés à la préparation discontinue de dioxyde de carbone liquide Withdrawn EP2708794A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12184297.5A EP2708794A1 (fr) 2012-09-13 2012-09-13 Procédé et dispositif de conditionnement destinés à la préparation discontinue de dioxyde de carbone liquide
PCT/EP2013/066739 WO2014040806A1 (fr) 2012-09-13 2013-08-09 Procédé et dispositif de conditionnement pour la fourniture discontinue de dioxyde de carbone liquide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12184297.5A EP2708794A1 (fr) 2012-09-13 2012-09-13 Procédé et dispositif de conditionnement destinés à la préparation discontinue de dioxyde de carbone liquide

Publications (1)

Publication Number Publication Date
EP2708794A1 true EP2708794A1 (fr) 2014-03-19

Family

ID=47008302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12184297.5A Withdrawn EP2708794A1 (fr) 2012-09-13 2012-09-13 Procédé et dispositif de conditionnement destinés à la préparation discontinue de dioxyde de carbone liquide

Country Status (2)

Country Link
EP (1) EP2708794A1 (fr)
WO (1) WO2014040806A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590535A (en) * 1995-11-13 1997-01-07 Chicago Bridge & Iron Technical Services Company Process and apparatus for conditioning cryogenic fuel to establish a selected equilibrium pressure
JP2005125767A (ja) * 2003-09-30 2005-05-19 Kawata Mfg Co Ltd 流体供給装置
DE102005002976A1 (de) * 2005-01-21 2006-07-27 Linde Ag Kohlendioxid-Versorgung für Spritzgussanlagen
DE102006048993A1 (de) * 2005-10-17 2007-05-16 Thermo King Corp Verfahren zum Betreiben einer Tieftemperatursteuereinrichtung
US20080302103A1 (en) * 2005-02-17 2008-12-11 Ari Minkkinen Liquefied Natural Regasification Plant
EP2175187A2 (fr) * 2008-10-09 2010-04-14 Linde Aktiengesellschaft Remplissage de véhicules avec des supports gazeux sous pression
DE102009039645A1 (de) * 2009-09-01 2011-03-10 Linde Aktiengesellschaft Befüllen von Speicherbehältern mit verdichteten Medien
US20110315243A1 (en) * 2008-10-07 2011-12-29 Ryutaro Hayashi Carbon dioxide supply system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590535A (en) * 1995-11-13 1997-01-07 Chicago Bridge & Iron Technical Services Company Process and apparatus for conditioning cryogenic fuel to establish a selected equilibrium pressure
JP2005125767A (ja) * 2003-09-30 2005-05-19 Kawata Mfg Co Ltd 流体供給装置
DE102005002976A1 (de) * 2005-01-21 2006-07-27 Linde Ag Kohlendioxid-Versorgung für Spritzgussanlagen
US20080302103A1 (en) * 2005-02-17 2008-12-11 Ari Minkkinen Liquefied Natural Regasification Plant
DE102006048993A1 (de) * 2005-10-17 2007-05-16 Thermo King Corp Verfahren zum Betreiben einer Tieftemperatursteuereinrichtung
US20110315243A1 (en) * 2008-10-07 2011-12-29 Ryutaro Hayashi Carbon dioxide supply system
EP2175187A2 (fr) * 2008-10-09 2010-04-14 Linde Aktiengesellschaft Remplissage de véhicules avec des supports gazeux sous pression
DE102009039645A1 (de) * 2009-09-01 2011-03-10 Linde Aktiengesellschaft Befüllen von Speicherbehältern mit verdichteten Medien

Also Published As

Publication number Publication date
WO2014040806A1 (fr) 2014-03-20

Similar Documents

Publication Publication Date Title
DE602004006674T2 (de) Kryogene Kälteanlage und Verfahren mit Kältespeicher
EP3139108B1 (fr) Dispositif de stockage et procede de stockage temporaire d'energie electrique en energie thermique
EP2567935A1 (fr) Procédé et dispositif de chauffage dýun produit sýécoulant
EP1838990B1 (fr) Alimentation en dioxyde de carbone d'installations de moulage par injection
EP2725313A2 (fr) Récupération de chaleur à partir d'un processus d'aéroréfrigérant à tunnel
EP2757199A1 (fr) Procédé et dispositif de givrage d'une masse de sol
EP3594554A1 (fr) Dispositif de sous-refroidissement des gaz liquéfiés
EP2708794A1 (fr) Procédé et dispositif de conditionnement destinés à la préparation discontinue de dioxyde de carbone liquide
DE1501101B2 (de) Vorrichtung zum Erzeugen von Kälte und/oder zum Verflüssigen von Gasen
EP2861400B1 (fr) Procédé pour changer la température d'un objet
DE19645492C1 (de) System und Verfahren zum Aufrechterhalten oder Erhöhen des Drucks in einem Kryotank
DE102011076858A1 (de) Vorrichtung zur Kühlung einer supraleitenden Maschine und Verfahren zum Betrieb der Vorrichtung
EP3645698B1 (fr) Dispositif pour le refroidissement d'un procédé de brassage
DE202006003726U1 (de) Temperiervorrichtung
EP2515057B1 (fr) Procédé et dispositif destinés à la régulation de la température d'un milieu fluidique
EP3269460B1 (fr) Dispositif de nettoyage de bouteilles et procédé pour un circuit d'eau de processus utilisé par le dispositif de nettoyage de bouteilles
DE102011103611A1 (de) Leistungsabnahme von Wärmelasten
EP3945268A1 (fr) Système de pompe à chaleur
EP4098931A1 (fr) Procédé et installation de refroidissement et de transport d'un fluide
EP4343247A1 (fr) Procédé et dispositif de production de gaz d'air
DE102014106155B4 (de) Regelheizung
DE102020130720A1 (de) Verfahren zum befüllen eines tankbehälters eines fahrzeugs mit gasförmigem wasserstoff aus einem vorratsbehälter einer versorgungsstation
EP2236945A2 (fr) Procédé d'utilisation d'une étanchéification
DE102013012833A1 (de) Einrichtung und Verfahren zum Bereitstellen von flüssigem und/oder gasförmigem Kohlendioxid
DE102013004957A1 (de) Verfahren zum Betrieb einer Absorptionskälteanlage bei auftretenden Lastschwankungen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20140910

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

17Q First examination report despatched

Effective date: 20160801

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20190405

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20190817