EP0823968B1 - Hochdruckgasversorgung - Google Patents
Hochdruckgasversorgung Download PDFInfo
- Publication number
- EP0823968B1 EP0823968B1 EP96914994A EP96914994A EP0823968B1 EP 0823968 B1 EP0823968 B1 EP 0823968B1 EP 96914994 A EP96914994 A EP 96914994A EP 96914994 A EP96914994 A EP 96914994A EP 0823968 B1 EP0823968 B1 EP 0823968B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- pressure
- receiving vessel
- line
- liquefied
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims abstract description 34
- 238000003860 storage Methods 0.000 claims description 108
- 238000009434 installation Methods 0.000 claims description 14
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 4
- 239000006096 absorbing agent Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 155
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 238000007726 management method Methods 0.000 description 6
- 230000003584 silencer Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed 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
- 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
- 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
- F17C2225/0123—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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/01—Intermediate tanks
-
- 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
- F17C2265/05—Regasification
Definitions
- the invention relates to a method for providing high pressure gas on a Place of consumption, the gas being liquefied at low pressure in a storage container is withdrawn, and continues to provide a gas supply facility for High pressure gas.
- Gas under high pressure is required for several industrial processes. For example is used for laser cutting along the laser beam under high pressure supplied inert gas such as nitrogen to blow out the melt when cutting of a metal.
- inert gas such as nitrogen
- plastic melt is made into a hollow mold introduced, which then with a gas under high pressure to the Inner wall of the molded part is pressed where it cools.
- gases with pressures between 30 and 500 bar are required, which are in gaseous or exist in the supercritical state area.
- the vaporized gas is thermally balanced with the liquefied gas, whereby a clear phase separation disappears, which for the effective promotion of the liquefied gas under high pressure is necessary.
- nitrogen for example after some time the critical point (-147 ° C: 33.9 bar) is exceeded, so that the nitrogen is present in the supercritical state in the storage container, whereby the Effectiveness of high pressure delivery is severely impaired.
- the high pressure gas should If possible, the place of consumption is available at a pressure specified by the consumer can be put and an intermittent gas consumption (temporarily Use of a consumer system).
- This object is achieved in that liquefied gas from the Storage container is introduced into a storage container, the size of such is chosen that the time period for emptying the same is shorter than that for Reaching thermal equilibrium in the storage container, and that the headspace of the storage container with vaporized gas that is outside the storage container is obtained in an evaporator, is applied until the liquefied Gas can be pumped to the place of consumption with the required high pressure, and that each time after emptying the storage container this again with liquefied Gas is filled.
- the use according to the invention of a compared to the reservoir for liquefied Gas of much smaller sized storage container enables if necessary a continuous over a period of time required by the consumer Supply of high pressure gas if this storage container at short intervals filled with liquefied gas and emptied with vaporized high pressure gas. Since the Time period for emptying the storage container is so small that during the Emptying the thermal equilibrium cannot be achieved, one is clear Defined phase boundary between liquefied gas and injected High pressure gas always present, which increases the efficiency of the high pressure gas production is considerably increased. The period of time to empty the Storage container without reaching thermal equilibrium in the storage container can be effectively insulated against heat exchange be extended with the environment. Extreme storage tank for high pressure gas are superfluous in the method according to the invention.
- the size of the reservoir is given the volume flow of the high pressure gas chosen at the point of use so that the contents of the storage container into one Period of time from 1 to 60 seconds, preferably from 5 to 45 seconds, in particular 10 to 30 seconds. is emptied. With such periods it is ensured that the system has no time to reach thermal equilibrium.
- Suitable contents of the storage container are between 1 and 10 liters, preferably between 1 and 5 liters, in particular between 1 and 2 liters.
- the size of the storage container and storage container are chosen so that the Ratio of the volume of the storage container to the volume of the storage container between 1: 500 and 1:50 000, preferably between 1: 1000 and 1:30 000, is particularly preferably between 1: 3,000 and 1:25,000.
- the process is carried out cyclically when using a single storage container continuous filling and emptying of this storage container.
- the liquefied gas is under high Pressure is conveyed to the place of consumption, where it is mostly in gaseous form using an evaporator Condition is transferred at a desired temperature. It can part of this vaporized high pressure gas is now branched off at the point of use and the head space of the storage container are supplied to the there to convey liquefied gas to the place of consumption. This requires a slight pressure increase of the branched gas take place.
- the high pressure gas present in the storage container after each emptying cycle can be operated as follows:
- the content can be sent to the Environment are released or via a pressure reducer in low pressure gas be converted, especially if there is a low-pressure gas network at the point of use is present, or low pressure gas is needed for other purposes.
- the content of vaporized gas can be exchanged with the heat to the place of consumption conducted liquefied gas are cooled and then expanded, whereby it liquefies in part, then this re-liquefied gas can be Circuit with liquefied gas can be returned.
- the evaporated high pressure gas cools down greatly with the liquefied gas, so that it is largely liquefied during the subsequent relaxation. This liquefied Gas is used again.
- two or more are connected in parallel Storage tank used which is cycled with liquefied gas from the storage tank filled and emptied by means of vaporized gas under high pressure.
- Storage tank used which is cycled with liquefied gas from the storage tank filled and emptied by means of vaporized gas under high pressure.
- the considerably smaller volume of the storage container compared to that of the storage container ensures the feasibility of the method according to the invention.
- Processes can hold storage containers with a capacity of for example 6000 liters or less, but also tanks with a capacity of 30,000 liters are used, depending on the gas consumption at the point of use.
- the storage containers with a content of 1 to about 10 liters dimensioned smaller by several orders of magnitude.
- a favorable second embodiment is in the discharge for liquefied gas an evaporator arranged under high pressure to the place of consumption, the output of which is connected to a line leading to the head of one or more storage containers, wherein a pressure increasing means is provided in this line.
- the mentioned evaporator of the first embodiment is saved and instead the existing evaporator used at the place of consumption, which liquefies the High pressure gas evaporates.
- the high-pressure gas can be branched off from the place of consumption and into return the headspace of the storage container.
- a discharge line for this high pressure gas is provided, either via a vent valve and leads a silencer into the environment, or via a pressure reducer communicates with a low gas pressure line, or in a gas recooler leads, in which the discharge leads into a relaxation nozzle.
- the gas recooler can use liquefied gas from the supply line to the place of consumption are supplied, this liquefied gas in the gas recooler led high pressure gas removes heat so that this reaches the expansion nozzle has cooled so far that it is followed by relaxation reliquefied.
- the Gas recooler has a conduit for liquefied gas that is connected to the conduit for condensed gas Gas is connected to one or more storage containers.
- a gas supply system essentially consists of a storage container 16, in this case a tank for liquefied nitrogen, which is connected via a valve and a non-return valve to a supply container 1, which is insulated against the unwanted heat exchange with the environment, via line 17.
- Liquefied gas can flow to the bottom of the storage container 1 via the supply line 17 due to the pressure prevailing in the storage container 16.
- the evaporator 4 is also partly filled with liquefied gas.
- the emptying and filling process is monitored by means of a device. which consists of a compensating valve 11, a throttle valve 12, a liquid pressure valve 10 and a differential pressure transmitter 13.
- This device transmits signals to the control unit 19, which controls the pressure valve 6 present in line 20 in order to adjust the pressure of the high-pressure gas delivered to the place of use, and which controls the existing quick-closing valve 9 in the supply line to the place of use in order to supply the gas to the place of consumption when required. or to interrupt an accident.
- the evaporator After filling the reservoir 1, the evaporator is started up 4, which in this case generates gaseous nitrogen, which via the pressure valve 6 flows through line 20 into the head space of the storage container 1. Is the necessary Pressure that is desired at the point of consumption is reached, the promotion of the im begins Storage container 1 existing liquefied gas through line 17 into the feed line 18 to the place of consumption. The evaporator 22 in front of the place of consumption converts this liquefied high pressure gas into gaseous.
- a high-pressure accumulator 2 which to the Line 18 is connected, ensures in combination with a pressure build-up evaporator 3, which with both the high pressure accumulator 2 and an overflow valve 14 the evaporator 4 is connected via line 20 for the compensation of Pressure fluctuations in the supply line 18 to the place of use.
- the pressure valve 6 and 6 is closed Open vent valve 7 with the refilling of the reservoir 1 liquefied gas from the storage container 16. This is in the storage container 1 existing vaporized high pressure gas via the vent valve 7 and the silencer 5 released to the environment.
- the whole process of emptying and Filling takes about 20 to 30 seconds.
- During refilling of the reservoir 1 there is no interruption of the high pressure gas supply on Place of consumption. since sufficient high-pressure gas is still present in the feed line 18.
- receiving reservoir is no thermal compensation according to the invention between liquefied gas and high pressure gas added to the headspace possible. This results in an effective, fast promotion that takes place continuously, depending on the size of the storage container 16, the respective method at the point of use can be done over long periods of time.
- the storage container 16 a nitrogen tank with a capacity of 30,000 liters be.
- FIG. 2 shows an embodiment of a gas supply system according to the invention that is comparable with FIG. 1, also with a storage container 16 for liquefied gas under relatively low pressure, a storage container 1, the volume of which is several dimensions below that of the storage container 16, a unit monitoring the filling and emptying, consisting of the components with the reference numbers 10 to 13, a further unit for equalizing pressure fluctuations, consisting of the high-pressure accumulator 2, the pressure build-up evaporator 3 and the pressure control 8, finally a control unit 19 and the pressure build-up evaporator 4 and a further evaporator 22 for liquefied high-pressure gas on Place of consumption.
- a storage container 16 for liquefied gas under relatively low pressure a storage container 16 for liquefied gas under relatively low pressure
- a storage container 1 the volume of which is several dimensions below that of the storage container 16
- a unit monitoring the filling and emptying consisting of the components with the reference numbers 10 to 13
- a further unit for equalizing pressure fluctuations consisting of the high-pressure
- the vaporized high-pressure gas used for emptying the reservoir 1 is fed into a nitrogen low-pressure network via a pressure reducer 15 (low-pressure solenoid valve) which is arranged in the discharge line 21 from the head space of the reservoir 1 and from the control unit 19 is opened in each case after an emptying phase of the storage container 1.
- a pressure reducer 15 low-pressure solenoid valve
- the mode of operation of the gas supply system shown in FIG. 3 essentially corresponds to that discussed in the previous figures, but the high-pressure gas used for conveying is liquefied again and returned to the circuit.
- the discharge line 21 leads from the head space of the storage container 1 via the vent valve 7 into the gas recooler 24, which in turn is integrated in the supply line 18 for liquefied high-pressure gas to the place of consumption.
- the vent valve 7 When the vent valve 7 is open, high-pressure gas flows from the emptied storage container 1 via the line 21 into the gas recooler 24, in which heat exchange takes place with liquefied high-pressure gas, as a result of which the high-pressure gas is strongly cooled.
- the vaporized high-pressure gas cools to approximately 120 K, is expanded in the expansion nozzle 25, as a result of which it liquefies, and can subsequently develop a non-return flap in the discharge line 26 from the gas recooler into the supply line 17 to the storage container 1 can be returned.
- a return of the gas portion to the reservoir 16 via line 23 is also possible.
- the gas supply system shown in Figure 3 works as a closed system without any losses.
- FIG. 4 A further design option for a gas supply system according to the invention is shown in FIG. 4 .
- the same device components are also identified here with the same reference numerals.
- two receptacles 1 and 1 ' which are insulated against unwanted heat exchange with the environment, are integrated here and are filled and emptied cyclically.
- a storage tank 16 for liquefied nitrogen one of the two storage containers 1 and 1 'is filled via line 17 into the bottom of the storage container.
- Both storage containers 1 and 1 'each contain a level probe attached to the head space, which completes the filling process.
- One of the two storage containers 1 and 1 ' is filled by suitably adjusting the diversion arrangement 30 with the four non-return flaps shown.
- gas present at the point of use is branched off under high pressure from the evaporator 22 in operation and conducted back via line 27 into the headspace of the storage container in question.
- the fan 28 increases the pressure, for which, in particular, a reciprocating piston compressor can be used.
- the supply of the recirculated vaporized high pressure gas into the respective storage container 1 or 1 takes place via the switch block 29 via the two three-way valves shown.
- the evaporator 22 can be initially filled with the bypass valve 31 open and the diversion arrangement 30 closed in order to be able to start the system.
- the blower 28 ensures a pressure increase of 0.5 to 2 bar, which is necessary to return the high-pressure gas back into the head space of the respective storage container 1 or 1 '. In this way, liquefied gas reaches the line 18, which leads to the evaporator 22 at the point of use, via the diverter arrangement 30 with its check valves.
- the volume of both storage containers 1 and 1 ' is several Dimensions smaller than the volume of the storage container 16, which is usually one tank system installed at the consumer for liquid gas represents with a capacity of several thousand liters. In this embodiment a volume of 1.8 liters is used for the storage containers 1 and 1 '.
- the time for emptying each storage container 1 and 1 ' is about 20 Seconds. thereby ensuring according to the invention that the to achieve the thermal equilibrium of the system fell short of the time required remains. This means that there is a clear phase boundary during the entire emptying process secured between liquefied gas and high pressure gas, the for fast emptying of the respective storage container under high pressure worries.
- the line 27 with the fan saves 28 the use of a separate evaporator for the respective storage container.
- a gas supply system according to the invention can be advantageous deploy.
- the system is extremely cost-saving and can be adjusted depending on the size of the storage container 16 use continuously over very long periods of time. Especially uneconomical high-pressure gas units can be found at the point of use save on.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Gas Separation By Absorption (AREA)
Description
- Figur 1
- zeigt schematisch eine erfindungsgemäße Gasversorgungsanlage in einer Ausführungsform, bei der das zur Förderung des verflüssigten Gases verwendete verdampfte Hochdruckgas verworfen wird.
- Figur 2
- zeigt eine weitere mögliche Ausführungsform einer erfindungsgemäßen Gasversorgungsanlage, bei der verdampftes Hochdruckgas in ein Niederdrucknetz eingespeist wird.
- Figur 3
- zeigt eine weitere Ausführungsform, bei der verdampftes Hochdruckgas wieder verflüssigt und in den Kreislauf rückgeführt wird.
- Figur 4
- zeigt schließlich eine Ausführungsform einer erfindungsgemäßen Gasversorgungsanlage, bei der zwei parallel geschaltete Vorlagebehälter abwechselnd zur Förderung verflüssigten Hochdruckgases eingesetzt werden.
| Legende | |
| 1 | Vorlagebehälter |
| 1' | Vorlagebehälter |
| 2 | Hochdruckspeicher |
| 3 | Druckaufbauverdampfer |
| 4 | Verdampfer |
| 5 | Schalldämpfer |
| 6 | Druckventil |
| 7 | Entlüftungsventil |
| 8 | Drucksteuerung |
| 9 | Schnellschlußventil |
| 10 | Flüssig-Druckventil |
| 11 | Ausgleichsventil |
| 12 | Drosselventil |
| 13 | Differenzdrucktransmitter |
| 14 | Überströmventil |
| 15 | Druckminderer |
| 16 | Vorratsbehälter/-tank |
| 17 | Leitung |
| 18 | Leitung |
| 19 | Steuereinheit |
| 20 | Leitung |
| 21 | Ableitung |
| 22 | Verdampfer |
| 23 | Leitung |
| 24 | Gasrückkühler |
| 25 | Entspannungsdüse |
| 26 | Leitung |
| 27 | Leitung |
| 28 | Gebläse |
| 29 | Umschaltblock |
| 30 | Umleitanordnung |
| 31 | Bypassventil |
Claims (26)
- Verfahren zur Bereitstellung von Hochdruckgas an einem Verbrauchsort, wobei das Gas verflüssigt mit niedrigem Druck einem Vorratsbehälter (16) entnommen wird, dadurch gekennzeichnet, daß verflüssigtes Gas aus dem Vorratsbehälter in einen Vorlagebehälter (1; 1') eingeleitet wird, dessen Größe derart gewählt wird, daß die Zeitspanne zur Entleerung desselbigen kleiner ist als die zum Erreichen des thermischen Gleichgewichts in dem Vorlagebehälter (1; 1') notwendige, und daß der Kopfraum des Vorlagebehälters (1; 1') mit verdampftem Gas, das außerhalb des Vorlagebehälters (1; 1') in einem Verdampfer (4; 22) gewonnen wird, beaufschlagt wird, bis das verflüssigte Gas mit dem benötigten Hochdruck zum Verbrauchsort gefördert werden kann, und daß jeweils nach Entleerung des Vorlagebehälters (1; 1') dieser emeut mit verflüssigtem Gas befüllt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das verflüssigte Gas geregelt verdampft wird und der Druck auf den benötigten Verbrauchsdruck am Verbrauchsort exakt eingestellt wird.
- Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß ein gegen Wärmetausch mit der Umgebung isolierter Vorlagebehälter (1, 1') verwendet wird.
- Verfahren nach einem der Anspürche 1 bis 3, dadurch gekennzeichnet, daß die Größe des Vorlagebehälters (1; 1') bei gegebenem Volumenstrom des Hochdruckgases am Verbrauchsort derart gewählt wird, daß der Inhalt des Vorlagebehälters (1; 1') in einer Zeitspanne von 1 bis 60 Sekunden, vorzugsweise von 5 bis 45 Sekunden, insbesondere 10 bis 30 Sekunden, entleert wird.
- Verfahren einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Inhalt des Vorlagebehälters (1; 1') je nach vorgegebenem Volumenstrom des Hochdruckgases am Verbrauchsort zwischen 1 und 10 Liter, vorzugsweise zwischen 1 und 5 Liter, insbesondere zwischen 1 und 2 Liter, gewählt wird.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß ein Vorlagebehälter (1; 1') und ein Vorratsbehälter (16) eingesetzt werden, wobei das Verhältnis des Volumens des Vorlagebehälters (1; 1') zum Volumen des Vorratsbehälter (16) zwischen 1:500 und 1:50 000, vorzugsweise zwischen 1:1000 und 1:30 000, besonders bevorzugt zwischen 1:3 000 und 1:25 000 liegt.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Kopfraum des Vorlagebehälters (1; 1') mit verdampftem Gas beaufschlagt wird, das von einem Verdampfer (22) am Verbrauchsort entnommen wird.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß der Druck des verdampften Gases bei der Zuleitung zum Kopfraum des Vorlagebehälters (1; 1') erhöht wird.
- Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß nach Entleerung des Vorlagebehälters (1; 1') dessen Inhalt an verdampftem Hochdruckgas über ein Entlüftungsventil (7) an die Umgebung abgegeben wird.
- Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß nach Entleerung des Vorlagebehälters (1; 1') dessen Inhalt an verdampftem Hochdruckgas über einen Druckminderer (15) in Niederdruckgas gewandelt wird.
- Verfahren nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß nach Entleerung des Vorlagebehälters (1; 1') dessen Inhalt an verdampftem Hochdruckgas durch Wärmetausch mit dem zum Verbrauchsort geleiteten verflüssigten Gas abgekühlt wird und anschließend entspannt wird, wodurch er sich zum Teil verflüssigt, und daß dieses wiederverflüssigte Gas in den Kreislauf mit verflüssigtem Gas rückgeführt wird.
- Verfahren nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß zwei oder mehr parallel geschaltete Vorlagebehälter (1, 1') verwendet werden, die zyklisch mit verflüssigtem Gas aus dem Vorratsbehälter (16) befüllt und mittels verdampftem Gas unter Hochdruck entleert werden.
- Verfahren nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß zwei oder mehr parallel geschaltete Vorlagebehälter (1; 1') verwendet werden, die gleichzeitig mit verflüssigtem Gas aus dem Vorlagebehälter (16) gefüllt und mittels verdampftem Gas unter Hochdruck entleert werden.
- Gasversorgungsanlage zur Bereitstellung von Hochdruckgas an einem Verbrauchsort, wobei ein Vorratsbehälter vorgesehen ist, der den Gaseverbrauch über einen größeren Zeitraum deckt und verflüssigtes Gas unter niedrigem Druck enthält, dadurch gekennzeichnet, daß mindestens ein Vorlagebehälter (1, 1') mit erheblich kleinerem Volumen als der Vorratsbehälter (16) mit diesem über eine Leitung (17) verbunden ist, daß am Kopf eines jeden Vorlagebehälters (1, 1') eine Zuleitung (20) für verdampftes Gas von einem Verdampfer (4; 22) unter Hochdruck angebracht ist, und daß am Boden eines jeden Vorlagebehälters (1, 1') eine Ableitung (17, 18) für verflüssigtes Gas unter Hochdruck zum Verbrauchsort angebracht ist.
- Gasversorgungsanlage nach Anspruch 14, dadurch gekennzeichnet, daß der Vorlagebehälters (1; 1') gegen Wärmetausch mit der Umgebung isoliert ist.
- Gasversorgungsanlage nach Anspruch 14 oder 15, dadurch gekennzeichnet, daß der Inhalt des Vorlagebehälters (1; 1') je nach vorgegebenem Volumenstrom des Hochdruckgases am Verbrauchsort zwischen 1 und 10 Liter, vorzugsweise zwischen 1 und 5 Liter, insbesondere zwischen 1 und 2 Liter, beträgt.
- Gasversorgungsanlage nach einem der Ansprüche 14 bis 16, dadurch gekennzeichnet, daß das Verhältnis des Volumens des Vorlagebehälters (1; 1') zur Größe des Vorratsbehälter (16) zwischen 500 und 50 000, vorzugsweise zwischen 1000 und 30 000, besonders bevorzugt zwischen 3 000 und 25 000 beträgt.
- Gasversorgungsanlage einem der Ansprüche 14 bis 18, dadurch gekennzeichnet, daß vom Boden des Vorlagebehälters (1; 1') eine Zuleitung (17) zu einem Verdampfer (4) geführt ist, von dem eine Leitung (20) zum Kopf des Vorlagebehälters abgeht.
- Gasversorgungsanlage nach einem der Ansprüche 14 bis 18, dadurch gekennzeichnet, daß Mittel (10, 11, 12, 13) zur Überwachung des Entleerungs- und Befüllungsvorganges vorgesehen sind, die in Wirkverbindung mit einer Steuereinheit (19) zur Übermittlung von Signalen und Mitteln (6) zur Drucksteuerung (6) stehen, um den Druck des zum Verbrauchsort geförderten Hochdruckgases einzustellen.
- Gasversorgungsanlage nach einem der Ansprüche 14 bis 19, dadurch gekennzeichnet, daß Mittel (9) zur Unterbrechung der Gasleitung zum Verbrauchsort vorhanden sind, die gegebenenfalls über die Steuereinheit (19) steuerbar sind.
- Gasversorgungsanlage nach einem der Ansprüche 14 bis 20, dadurch gekennzeichnet, daß vom Kopf des Vorlagebehälters (1; 1') eine Ableitung (21) für Hochdruckgas vorgesehen ist, die über ein Entlüftungsventil (7) und einen Schalldämpfer (5) in die Umgebung führt.
- Gasversorgungsanlage nach einem der Ansprüche 14 bis 20, dadurch gekennzeichnet, daß vom Kopf des Vorlagebehälters (1; 1') eine Ableitung (21) für Hochdruckgas vorgesehen ist, die über einen Druckminderer (15) mit einer Niedriggasdruckleitung in Verbindung steht.
- Gasversorgungsanlage nach einem der Ansprüche 14 bis 20, dadurch gekennzeichnet, daß vom Kopf des Vorlagebehälters (1; 1') eine Ableitung (21) für Hochdruckgas vorgesehen ist, die in einen Gasrückkühler (24) führt, in dem diese Ableitung (21) in eine Entspannungsdüse (25) mündet.
- Gasversorgungsanlage nach Anspruch 23, dadurch gekennzeichnet, daß der Gasrückkühler (24) eine Ableitung (21) für verflüssigtes Gas aufweist, die mit der Zuleitung (26) für verflüssigtes Gas in den Vorlagebehälter (1; 1') verbunden ist.
- Gasversorgungsanlage nach den Ansprüchen 14 bis 24, dadurch gekennzeichnet, daß in der Ableitung (18) für verflüssigtes Gas unter Hochdruck zum Verbrauchsort ein Verdampfer (22) angeordnet ist, dessen Ausgang mit einer Leitung (27) verbunden ist. die zum Kopf eines oder mehrerer Vorlagebehälter (1, 1') führt, wobei in dieser Leitung (27) ein Druckerhöhungsmittel (28) vorgesehen ist.
- Gasversorgungsanlage nach Anspruch 25, dadurch gekennzeichnet, daß das Druckerhöhungsmittel (28) ein Pendelkolbenkompressor (28) ist.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19516002 | 1995-05-02 | ||
| DE19516002 | 1995-05-02 | ||
| PCT/EP1996/001758 WO1996035078A1 (de) | 1995-05-02 | 1996-04-26 | Hochdruckgasversorgung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0823968A1 EP0823968A1 (de) | 1998-02-18 |
| EP0823968B1 true EP0823968B1 (de) | 1998-10-21 |
Family
ID=7760825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96914994A Expired - Lifetime EP0823968B1 (de) | 1995-05-02 | 1996-04-26 | Hochdruckgasversorgung |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0823968B1 (de) |
| JP (1) | JPH11505007A (de) |
| AT (1) | ATE172524T1 (de) |
| CZ (1) | CZ288387B6 (de) |
| DE (2) | DE59600717D1 (de) |
| ES (1) | ES2124097T3 (de) |
| HU (1) | HUP9801238A3 (de) |
| PL (1) | PL179727B1 (de) |
| WO (1) | WO1996035078A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19716414C1 (de) * | 1997-04-18 | 1998-07-09 | Linde Ag | Hochdruckgasversorgung |
| FR2769354B1 (fr) * | 1997-10-06 | 1999-11-05 | Air Liquide | Procede et installation de remplissage d'un reservoir sous pression |
| US5924291A (en) * | 1997-10-20 | 1999-07-20 | Mve, Inc. | High pressure cryogenic fluid delivery system |
| GB9825763D0 (en) * | 1998-11-25 | 1999-01-20 | Boc Group Plc | Filling containers with gas |
| DE10358311A1 (de) * | 2003-12-11 | 2005-07-14 | Bayerische Motoren Werke Ag | System und Verfahren zur Verdampfung eines kryogen gespeicherten Kraftstoffs |
| DE102005056102A1 (de) * | 2005-10-27 | 2007-05-03 | Linde Ag | Vorrichtung zur Gasdruckerhöhung |
| AT503579B1 (de) * | 2006-05-08 | 2007-11-15 | Hermeling Katharina Mag | Verfahren zur zyklischen kolbenlosen kompression der gasphase tiefkalt verflüssigter gase |
| CN102182919B (zh) * | 2011-03-26 | 2013-01-02 | 宁波鲍斯能源装备股份有限公司 | 液化天然气蒸发气体回收再液化的装置与方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2884943A (en) * | 1954-04-22 | 1959-05-05 | Bendix Aviat Corp | Liquid-gas converter system |
| FR2379018A1 (fr) * | 1976-12-23 | 1978-08-25 | Air Liquide | Procede et installation cryogeniques de distribution de gaz sous pression |
| US4961325A (en) * | 1989-09-07 | 1990-10-09 | Union Carbide Corporation | High pressure gas supply system |
| WO1993021470A1 (fr) * | 1992-04-14 | 1993-10-28 | Tovarischestvo S Ogranichennoi Otvetstvennostju, Firma 'megma Ars' (Megma Ars Ltd) | Procede et installation de generation de gaz |
-
1996
- 1996-04-26 HU HU9801238A patent/HUP9801238A3/hu unknown
- 1996-04-26 JP JP8532985A patent/JPH11505007A/ja active Pending
- 1996-04-26 DE DE59600717T patent/DE59600717D1/de not_active Expired - Fee Related
- 1996-04-26 DE DE19616811A patent/DE19616811A1/de not_active Withdrawn
- 1996-04-26 CZ CZ19973463A patent/CZ288387B6/cs not_active IP Right Cessation
- 1996-04-26 PL PL96323140A patent/PL179727B1/pl unknown
- 1996-04-26 ES ES96914994T patent/ES2124097T3/es not_active Expired - Lifetime
- 1996-04-26 EP EP96914994A patent/EP0823968B1/de not_active Expired - Lifetime
- 1996-04-26 WO PCT/EP1996/001758 patent/WO1996035078A1/de not_active Ceased
- 1996-04-26 AT AT96914994T patent/ATE172524T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| HUP9801238A3 (en) | 2000-02-28 |
| HUP9801238A2 (hu) | 1998-08-28 |
| CZ288387B6 (en) | 2001-06-13 |
| PL323140A1 (en) | 1998-03-16 |
| WO1996035078A1 (de) | 1996-11-07 |
| PL179727B1 (pl) | 2000-10-31 |
| ES2124097T3 (es) | 1999-01-16 |
| ATE172524T1 (de) | 1998-11-15 |
| DE59600717D1 (de) | 1998-11-26 |
| EP0823968A1 (de) | 1998-02-18 |
| JPH11505007A (ja) | 1999-05-11 |
| CZ346397A3 (cs) | 1998-04-15 |
| DE19616811A1 (de) | 1996-11-07 |
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