EP2863103B1 - Vorrichtung und Verfahren zum Unterkühlen von Kohlendioxid - Google Patents

Vorrichtung und Verfahren zum Unterkühlen von Kohlendioxid Download PDF

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Publication number
EP2863103B1
EP2863103B1 EP14003030.5A EP14003030A EP2863103B1 EP 2863103 B1 EP2863103 B1 EP 2863103B1 EP 14003030 A EP14003030 A EP 14003030A EP 2863103 B1 EP2863103 B1 EP 2863103B1
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EP
European Patent Office
Prior art keywords
carbon dioxide
temperature
cooling bath
liquid carbon
container
Prior art date
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EP14003030.5A
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German (de)
English (en)
French (fr)
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EP2863103A2 (de
EP2863103A3 (de
Inventor
Emir Tebib
Frank Gockel
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Messer Group GmbH
Messer France SAS
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Messer Group GmbH
Messer France SAS
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Priority to PL14003030T priority Critical patent/PL2863103T3/pl
Publication of EP2863103A2 publication Critical patent/EP2863103A2/de
Publication of EP2863103A3 publication Critical patent/EP2863103A3/de
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    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
    • 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
    • F17C2223/0146—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
    • F17C2223/035—High pressure (>10 bar)
    • 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
    • F17C2225/0169—Liquefied gas, e.g. LPG, GPL subcooled
    • 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
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0339—Heat exchange with the fluid by cooling using the same fluid
    • 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
    • F17C2227/0358—Heat exchange with the fluid by cooling by expansion
    • 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
    • F17C2227/0369—Localisation of heat exchange in or on a vessel
    • F17C2227/0374—Localisation of heat exchange in or on a vessel 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
    • 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
    • F17C2250/0636—Flow or movement of content
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air

Definitions

  • the invention relates to a method for subcooling liquid carbon dioxide, in which the liquid carbon dioxide is transported from a tank to a arranged in a thermally insulated container heat exchanger and there brought into thermal contact with a cooling bath arranged in the container and thereby cooled.
  • Low-boiling liquefied gases can only be kept liquid by means of particularly good insulation of the storage tanks and the pipelines. Even the slightest heat or frictional heat can lead to partial evaporation, depending on the boiling state.
  • the boiling bubbles collect, except in the headspace of the storage container, e.g. also in vertical pipe bends. These so-called gas cushions in the supply line lead to disruptions at the sampling point when a reproducible dosing of the liquefied gas is required. It is easy to see that due to the density difference between the gas and the liquid, different amounts flow through an opening of the same size at equal time intervals.
  • the liquefied gas is "undercooled” thus brought to a temperature which is lower than the boiling point at the prevailing pressure.
  • Such supercooling can be accomplished, for example, by the isobarically cooling the liquefied cryogenic medium by means of an electric cooling unit to a temperature below its boiling point so that partial evaporation does not occur during circulation in a loop system due to heat radiation and friction losses.
  • an electric cooling unit to a temperature below its boiling point so that partial evaporation does not occur during circulation in a loop system due to heat radiation and friction losses.
  • the necessary aggregates are very expensive to buy and operate due to their high power requirements.
  • subcooling means Own medium into consideration, as for example from the DE 2 929 709 A1 , of the US 5,123,250 A1 and the US 5 214 925 A1 are known.
  • the devices described therein for subcooling cryogenic liquids, such as, for example, liquid nitrogen, liquid carbon dioxide or freon, by means of their own medium comprise a heat exchanger through which the liquid cryogenic medium to be submerged flows under pressure, which is arranged in an insulated container.
  • the heat exchanger is designed as a cooling coil, which is surrounded by a bath of the same liquid cryogenic medium.
  • a gas outlet valve is provided, which ensures that the pressure in the container corresponds to the ambient pressure.
  • the pressure of the liquid bath is reduced compared to the pressure of the gas to be undercooled, its boiling temperature is below the boiling point of the gas to be supercooled.
  • the cryogenic medium in the cooling coil is supercooled and there already occurred gas bubbles are liquefied again.
  • such apparatuses are also suitable as gas phase separators.
  • the pressure of the cooling bath can also be brought to a value below ambient pressure (eg 1013 mbar) by means of a vacuum pump and applied thereto Way temperatures of supercooled cryogenic medium can be achieved, which are below its boiling point at ambient pressure.
  • a device for cooling liquid and gaseous media is known.
  • a conduit for the medium to be cooled is fluidly connected to a heat exchanger, which is arranged in a thermally insulated container and is in heat exchange with a recorded in the container cooling bath, wherein the cooling bath and the conduit for the medium to be undercooled with an in the container emptying expansion nozzle is fluidly connected.
  • a heat exchanger which is arranged in a thermally insulated container and is in heat exchange with a recorded in the container cooling bath, wherein the cooling bath and the conduit for the medium to be undercooled with an in the container emptying expansion nozzle is fluidly connected.
  • carbon dioxide is used as the medium to be undercooled.
  • the invention is therefore based on the object to provide a device for subcooling of liquid carbon dioxide, with a simple way, an increased bandwidth of the temperature setting can be achieved.
  • the cooling bath is formed from a cold mixture of solid carbon dioxide and a liquid or pasty carrier medium, and the line for the liquid carbon dioxide to be supercooled is flow-connected to a flash-out nozzle in the tank.
  • a partial stream or a certain amount of liquid carbon dioxide to be supercooled is removed before or after passing through the heat exchanger and expanded at the expansion nozzle to form carbon dioxide snow and carbon dioxide gas.
  • the carbon dioxide snow produced in the process is admixed with the carrier medium already present in the container or still to be supplied thereto and / or completely or partially dissolved in it.
  • the temperature of the carbon dioxide drops drastically, for example to a value of -78 ° C. at an internal container pressure of 1 bar.
  • the temperature of the cold bath can additionally reduce and thus enhance the cooling effect of the cold bath, it should be ensured that the under-cooling liquid carbon dioxide by applying a sufficiently high pressure even after the heat transfer the cooling bath remains in the liquid state. Since the cooling bath is always in the liquid state, good heat transfer takes place at the heat exchanger surfaces of the surface to be undercooled liquid carbon dioxide flowed through the heat exchanger. Furthermore, the cold bath consisting of a mixture of a carrier medium with the carbon dioxide snow keeps its temperature constant until the carbon dioxide snow supplied is at least substantially sublimated. By supplying liquid carbon dioxide to the expansion nozzle and mixing the carbon dioxide snow produced by the expansion of this liquid carbon dioxide into the carrier medium, however, the sublimated carbon dioxide can be easily replaced, thus keeping the temperature of the cold bath constant over a virtually unlimited period of time.
  • a branch line which connects the line for the carbon dioxide to be cooled with the expansion valve, is equipped with a valve and a controlled system, by means of which the amount of the expansion valve supplied liquid carbon dioxide in Depending on a temperature measured at a temperature sensor temperature value for the cooling bath and / or for the supercooled liquid carbon dioxide can be controlled.
  • the temperature of the cold bath and / or the temperature of the supercooled liquid carbon dioxide is detected continuously or at predetermined time intervals, and depending on the difference between the measured temperature and a target temperature of the cold bath or supercooled liquid carbon dioxide the cooling bath fresh carbon dioxide fed.
  • the branch line leading to the expansion nozzle discharges downstream of the heat exchanger from the conduit for the liquid carbon dioxide to be supercooled, i. it is already supplied to the expansion valve supercooled liquid carbon dioxide, whereby the proportion of the resulting during the expansion of solid carbon dioxide increases compared to the gas content.
  • a yet further advantageous embodiment of the invention is characterized in that the container is equipped with an exhaust pipe in which a pressure valve is arranged, by means of which the pressure within the pressure-resistant in this case formed container to a predetermined value below the triple point pressure of carbon dioxide (5, 18 bar) is adjustable.
  • the pressure within the pressure-resistant in this case formed container to a predetermined value below the triple point pressure of carbon dioxide (5, 18 bar) is adjustable.
  • the temperature of the solid carbon dioxide is set at the same time after the relaxation. Since the temperature of the solid carbon dioxide co-determines the temperature of the entire cryogen mixture, the temperature of the cryogen can be adjusted in a wide range in this way.
  • a suction pump to the exhaust pipe, it is also possible to achieve pressures in the tank of less than 1 bar and thus temperature values below -78 ° C.
  • the preferred carrier medium used in the cold bath is an alcohol or an organic carrier medium.
  • a "carrier medium” is to be understood as meaning a substance which remains in a liquid or pasty state during mixing and / or when solid carbon dioxide is redissolved. In particular, it does not have to be a substance in which the solid carbon dioxide is soluble.
  • the carrier medium can in turn consist of a mixture of two or more liquids. Dual-substance mixtures may be used, in which the temperature of the mixture mixed with carbon dioxide depends on the proportion of the respective substances.
  • the temperature of a mixture consisting of solid carbon dioxide and ethylene glycol and ethanol depending on the proportion of ethanol over that of ethylene glycol in the support medium between - 78 ° C (at 100% ethanol) and - 17 ° C (at 100% ethylene glycol) varies become.
  • a cryogen mixture of solid carbon dioxide and o-xylene and p-xylene in which the temperature of the cryogen can be varied by adjusting the ratio of o-xylene to p-xylene between -78 ° C and -26 ° C.
  • the carrier medium contains one or more of the following: ethanol, ethylene glycol, 3-heptanone, acetonitrile, cyclohexanone, diethylcarbitol, chloroform, acetone, diethyl ether, o-xylene, p-xylene, m-xylene, benzyl alcohol, n Octane, isopropyl ether, tetrachlorethylene.
  • the liquid carbon dioxide is fed under a pressure of at least 5.18 bar arranged in a thermally insulated container heat exchanger and placed there with a container disposed in the cooling bath in thermal contact and subcooled, that is brought to a temperature below its boiling temperature at the pressure in which it is passed through the heat exchanger.
  • the liquid carbon dioxide previously present at a temperature of -20 ° C. at a pressure of approximately 20 bar after the heat exchange with the cooling bath has a temperature between -25 ° C. and -30 ° C. and a substantially constant pressure of approx 20 bar.
  • the cold bath is formed from a cold mixture of solid carbon dioxide and a carrier medium.
  • the solid carbon dioxide in the cooling bath sublimates successively and enters a gas phase above the cooling bath, from which it is subsequently removed.
  • the sublimated from the cold bath solid carbon dioxide is replaced by a partial flow or a predetermined amount of subcooled liquid carbon dioxide is removed before or after passing through the heat exchanger and is expanded at a arranged in the container expansion nozzle, wherein the resulting during the expansion solid carbon dioxide is then fed to the cooling bath and mixed with this and / or dissolved in this.
  • the carbon dioxide to be cooled always remains in the liquid state.
  • An advantageous development of the method according to the invention provides that the temperature in the cooling bath and / or the temperature of the supercooled liquid carbon dioxide after passing through the heat exchanger detected continuously or at predetermined intervals and the supply of liquid carbon dioxide to the expansion nozzle in dependence on the measured temperature is regulated. In this way, therefore, due to the heat exchange with the liquid carbon dioxide to be supercooled gradually sublimated from the cooling bath solid carbon dioxide by an equal amount of solid carbon dioxide, which was formed at the expansion, replaced and kept the cold bath permanently at a constant temperature.
  • FIG. 1 schematically illustrates an embodiment of the device according to the invention.
  • the inventive device 1 for subcooling liquid carbon dioxide comprises a pressure-resistant, closed container 2 with thermally insulated walls 3, within which a cooling coil 4 is arranged.
  • the cooling coil 4 is used for cooling of liquid, pressurized carbon dioxide, which is stored from a pressure vessel, not shown here, for example, a standing tank in which the liquid carbon dioxide at a pressure of 20 bar and a temperature of -20 ° C, via a thermally insulated supply line 6 is guided into the cooling coil 4 and leaves the cooling coil 4 in the direction of a consumer not shown here via a likewise thermally insulated lead 7.
  • a supply line 9 for supplying a liquid carrier medium and an exhaust pipe 10 for the discharge of gaseous carbon dioxide into the container 2 a.
  • branch line 12 From the exit 7 branches, downstream of the container 2 and the cooling coil 4, a branch line 12 from.
  • the branch line 12 leads into the head space 8 of the container 2 and opens at a relaxation nozzle 13 into the interior of the container 2.
  • a flow valve 14 is arranged that is connected via a control controller 15 with a temperature sensor 16 in the discharge line 7 in data connection.
  • a cooling bath 18 consisting of a liquid carrier medium, for example ethanol or acetone, and mixed therein solid carbon dioxide.
  • a liquid carrier medium for example ethanol or acetone
  • solid carbon dioxide is introduced, passes through the cooling coil 4 and is then fed via the line 7 to a consumer.
  • the pressure inside the container 2 is smaller than the pressure with which the liquid carbon dioxide is introduced through line 6, for example, the pressure in the line 6 is between 10 and 100 bar and the internal pressure of the container 1 bar. In this case, there is a thermal contact with the cooling bath 18 via the walls of the cooling coil 4.
  • the support medium is introduced via line 9 into the container 2.
  • a predetermined amount of flowing in the derivative 7 liquid carbon dioxide is removed and fed via the branch line 12 of the expansion nozzle 13, where it relaxes on the container internal pressure and thereby passes into a mixture of gaseous carbon dioxide and carbon dioxide snow 20.
  • the carbon dioxide snow 20 mixes with the carrier medium already present in the container 2 to form a cryogenic mixture, wherein a mixer 19 ensures a uniform mixing of the two substances.
  • the resulting during the expansion of the liquid carbon dioxide gaseous carbon dioxide is removed via the exhaust pipe 10 and optionally fed to a further use.
  • filter 21 ensures that carbon dioxide snow 20 is not entrained or only in small quantities from the flow of gaseous carbon dioxide and escapes through the exhaust pipe 10.
  • the cooling bath 18 has a temperature corresponding to the cooling mixture.
  • the temperature is -78 ° C, for a mixture of acetone and solid carbon dioxide up to -86 ° C, for one of diethyl ether and solid Carbon dioxide existing cold mixture up to -100 ° C.
  • the liquid carbon dioxide flows through the cooling coil 4, its walls act as heat transfer surfaces, via which heat is released from the liquid carbon dioxide in the cooling coil 4 to the cooling bath 18. There, the heat absorption leads to the sublimation of present in the cooling bath 18 in dissolved or mixed form solid carbon dioxide. The resulting in the sublimation carbon dioxide gas is removed via the exhaust pipe 10.
  • the temperature of the cooling bath 18 remains substantially constant, then it rises.
  • the increase in temperature in the cooling bath 18 leads to an increase in temperature of the liquid carbon dioxide in line 7, which in turn is detected at the temperature sensor 16.
  • the valve 14 Due to the deviation from a setpoint value of the temperature stored in the control unit 15, the valve 14 is opened and liquid carbon dioxide is supplied via the branch line 12 to the expansion nozzle 13, the carbon dioxide snow 20 formed during the expansion being admixed with the cooling bath 18. In this case, the temperature of the cooling bath 18 and thus of the liquid carbon dioxide in line 7 decreases again.
  • the valve 14 is closed.
  • care must be taken to ensure that the pressure in the line 7 is sufficiently high to keep the supercooled carbon dioxide in the liquid state; if appropriate, the line 6 can be preceded by a device for increasing the pressure.
  • the temperature of the cryogen in the cooling bath 18 and thus the supercooling of the conduit 7 durströmenden liquid carbon dioxide can be adjusted.
  • endothermic effects in the solution of carbon dioxide in the carrier medium can also be used, and temperatures of below -78 ° C. (at a pressure of 1 bar in the head space 8) can thus be achieved.
  • a very accurate setting of a cold bath temperature is achieved in particular by the choice of a binary mixture as a carrier medium, wherein the respective mixing ratio determines the temperature of the cryogen.
  • Another way to influence the temperature of the cold bath is the pressure in the headspace 8 of the container 2 to a predetermined value of below 5.18 bar, since the temperature of the carbon dioxide snow, after its relaxation, depends on the pressure to which it relaxes.
  • the pressure in the headspace 8 can be maintained at a value between 1 bar and 5.18 bar, for example, by a corresponding adjustment of a valve disposed in the exhaust line 10 pressure valve 22. Pressure values below 1 bar can be achieved by connecting a suction pump, not shown here, to the exhaust pipe 10.
  • the temperature of the carbon dioxide snow and thus of the cryogen can thus be varied to values between about -58 ° C and -100 ° C.
  • the liquid carbon dioxide in the conduit 7 is very efficiently supercooled, wherein a very good heat transfer to the walls of the cooling coil 4 takes place on the surrounding liquid cooling bath 18.
  • the introduction of a portion of the liquid carbon dioxide in the cooling bath 18 via the branch line 12 thereby enables an automatic refreshment of the cooling bath 18 due to a controlled supply of carbon dioxide snow.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon And Carbon Compounds (AREA)
EP14003030.5A 2013-09-03 2014-09-03 Vorrichtung und Verfahren zum Unterkühlen von Kohlendioxid Active EP2863103B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14003030T PL2863103T3 (pl) 2013-09-03 2014-09-03 Urządzenie i sposób przechładzania dwutlenku węgla

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013014912.6A DE102013014912A1 (de) 2013-09-03 2013-09-03 Vorrichtung und Verfahren zum Unterkühlen von Kohlendioxid

Publications (3)

Publication Number Publication Date
EP2863103A2 EP2863103A2 (de) 2015-04-22
EP2863103A3 EP2863103A3 (de) 2015-05-06
EP2863103B1 true EP2863103B1 (de) 2018-08-01

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EP14003030.5A Active EP2863103B1 (de) 2013-09-03 2014-09-03 Vorrichtung und Verfahren zum Unterkühlen von Kohlendioxid

Country Status (5)

Country Link
EP (1) EP2863103B1 (pl)
DE (1) DE102013014912A1 (pl)
ES (1) ES2690138T3 (pl)
HU (1) HUE040079T2 (pl)
PL (1) PL2863103T3 (pl)

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DE102021005135A1 (de) 2020-06-22 2022-12-22 Mycon Gmbh Verfahren zur Temperatursenkung und/oder Aufrechterhaltung geringer Temperaturen eines Objektes mittels eines flüssigen Gases, insbesondere mittels flüssigem Kohlendioxid, und dazu geeignete Vorrichtung
WO2022268244A1 (de) 2021-06-22 2022-12-29 Mycon Gmbh Verfahren zur temperatursenkung und/oder aufrechterhaltung geringer temperaturen eines objektes mittels eines flüssigen gases, insbesondere mittels flüssigem kohlendioxid, und dazu geeignete vorrichtung

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FR3004784B1 (fr) * 2013-04-18 2015-04-10 Air Liquide Procede et installation d'alimentation d'au moins un poste d'usinage en liquide cryogenique sous-refroidi
FR3034854B1 (fr) * 2015-04-08 2019-08-02 Cryo Pur Procede de recuperation d'energie a partir de la glace carbonique a pression infra atmospherique
CN108758333B (zh) * 2018-07-18 2024-09-03 河南省日立信股份有限公司 二氧化碳恒温调压汽化装置
US12050053B2 (en) * 2020-03-12 2024-07-30 Raytheon Company Consumable dry ice cooling
DE102020003866A1 (de) * 2020-06-27 2021-12-30 Linde Gmbh Vorrichtung und Verfahren zum Kühlen von Bauteilen, insbesondere beim Schutzgasschweißen oder beim Generativen Fertigen mittels Schutzgasschweißen, mit einem CO2-Partikelstrahl

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA381158A (en) * 1939-05-02 Arnold Hansen Odd Gas material handling apparatus
DE2929709A1 (de) 1979-07-21 1981-02-12 Messer Griesheim Gmbh Vorrichtung zum unterkuehlen von unter druck stehenden, tiefsiedenden verfluessigten gasen
FR2599119B1 (fr) * 1986-05-26 1988-08-26 Air Liquide Procede et dispositif pour delivrer de petites quantites d'un liquide cryogenique
US5123250A (en) 1990-04-10 1992-06-23 Union Carbide Canada Limited Cryogenic apparatus
US5214925A (en) 1991-09-30 1993-06-01 Union Carbide Chemicals & Plastics Technology Corporation Use of liquified compressed gases as a refrigerant to suppress cavitation and compressibility when pumping liquified compressed gases
CA2128187A1 (en) * 1994-07-15 1996-01-16 Paul Grohmann Process for treating molten metals, in particular molten steel, with a refining agent
DE102006005885A1 (de) * 2006-02-09 2007-08-16 Messer Group Gmbh Vorrichtung zum Kühlen von flüssigen oder gasförmigen Medien
DE102008032291A1 (de) * 2008-07-09 2010-01-14 Messer Group Gmbh Vorrichtung und Verfahren zum Entgraten von Formteilen
DE102011014943A1 (de) * 2011-03-24 2012-09-27 Airbus Operations Gmbh Multifunktionaler Kälteträgermediumbehälter und Verfahren zum Betreiben eines derartigen Kälteträgermediumbehälters

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021005135A1 (de) 2020-06-22 2022-12-22 Mycon Gmbh Verfahren zur Temperatursenkung und/oder Aufrechterhaltung geringer Temperaturen eines Objektes mittels eines flüssigen Gases, insbesondere mittels flüssigem Kohlendioxid, und dazu geeignete Vorrichtung
DE102021005135B4 (de) 2020-06-22 2023-01-19 Mycon Gmbh Verfahren zur Temperatursenkung und/oder Aufrechterhaltung geringer Temperaturen eines Objektes mittels eines flüssigen Gases, insbesondere mittels flüssigem Kohlendioxid, und dazu geeignete Vorrichtung
WO2022268244A1 (de) 2021-06-22 2022-12-29 Mycon Gmbh Verfahren zur temperatursenkung und/oder aufrechterhaltung geringer temperaturen eines objektes mittels eines flüssigen gases, insbesondere mittels flüssigem kohlendioxid, und dazu geeignete vorrichtung

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EP2863103A2 (de) 2015-04-22
DE102013014912A1 (de) 2015-03-05
ES2690138T3 (es) 2018-11-19
PL2863103T3 (pl) 2019-01-31
HUE040079T2 (hu) 2019-02-28
EP2863103A3 (de) 2015-05-06

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