DE10328417B3 - Stationary nitrogen generation and compressed storage tank for industrial use - Google Patents

Stationary nitrogen generation and compressed storage tank for industrial use Download PDF

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Publication number
DE10328417B3
DE10328417B3 DE10328417A DE10328417A DE10328417B3 DE 10328417 B3 DE10328417 B3 DE 10328417B3 DE 10328417 A DE10328417 A DE 10328417A DE 10328417 A DE10328417 A DE 10328417A DE 10328417 B3 DE10328417 B3 DE 10328417B3
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Germany
Prior art keywords
nitrogen
stationary
gas system
compressed air
line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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DE10328417A
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German (de)
Inventor
Wilfried Schneider
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.)
Schneider Druckluft GmbH
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Schneider Druckluft GmbH
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Priority to DE10328417A priority Critical patent/DE10328417B3/en
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Publication of DE10328417B3 publication Critical patent/DE10328417B3/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/04—Purification or separation of nitrogen
    • C01B21/0405—Purification or separation processes
    • C01B21/0433—Physical processing only
    • C01B21/0438—Physical processing only by making use of membranes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/048—Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/10—Nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4525—Gas separation or purification devices adapted for specific applications for storage and dispensing systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B01D53/0446—Means for feeding or distributing 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
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    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
    • F17C2205/0138—Two or more vessels characterised by the presence of fluid connection between vessels bundled in series
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    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
    • F17C2205/0142—Two or more vessels characterised by the presence of fluid connection between vessels bundled in parallel
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/018—Supporting feet
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0329—Valves manually actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0341—Filters
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    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
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    • F17C2205/0347—Active charcoal type
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    • F17C2205/05—Vessel or content identifications, e.g. labels
    • F17C2205/051—Vessel or content identifications, e.g. labels by coating
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    • 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
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
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    • F17C2250/032—Control means using computers
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    • 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
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    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
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    • F17C2250/0491—Parameters measured at or inside the vessel
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    • F17C2260/00—Purposes of gas storage and gas handling
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    • F17C2265/00—Effects achieved by gas storage or gas handling
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    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use
    • F17C2270/0545—Tools

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

A stationary gas compressor draws ambient air from which nitrogen is abstracted by e.g. selective filtration for storage under pressure in a tank (4) and subsequently dispensed through a pressure line.

Description

Die Erfindung betrifft eine Stationäre Druckgasanlage gemäß Oberbegriff des Anspruchs 1.The Invention relates to a stationary Pressurized gas system according to the generic term of claim 1.

Es sind Druckluftanlagen bekannt, die in Werkstätten und auch bei der industriellen Fertigung zum Einsatz kommen, um druckluftbetriebene Werkzeuge an unterschiedlichen Positionen im Raum betreiben zu können. Zu diesem Zweck besitzen die bekannte Druckluftanlagen eine oder mehrere Druckluft-Verteilerleitungen, die eine Vielzahl von Druckluftanschlüssen haben können. Gespeist wird die Druckluftleitung von einem Luftverdichter, der über einen Druckluftspeicher mit der Druckluft-Verteilerleitung verbunden sein kann.It Compressed air systems are known in workshops and also in industrial Manufacturing are used to get air powered tools to be able to operate different positions in the room. To For this purpose, the known compressed air systems have one or more Compressed air distribution lines that have a variety of compressed air connections can. The compressed air line is fed by an air compressor via a Compressed air reservoir must be connected to the compressed air distribution line can.

Für unterschiedliche Anwendungszwecke kann es vorteilhaft sein, in Werkstätten oder in der industriellen Fertigung zusätzlich zu der bereitgestellten Druckluft auch noch unter Druck stehenden Stickstoff bereit zu stellen. Zur Bereitstellung von Stickstoff ist es bekannt, selektiv permeable Filter zu verwenden, die eine eingangsseitig zugeführte Druckluft in einen Stickstoffanteil und ein so genantes Spül-Gas trennen. Mit dem dadurch aus der Umgebungsluft abgetrennten Stickstoff können beispielsweise Autoreifen befüllt werden. In der Umgebungsluft sind bekanntlich ca. 78% Stickstoff enthalten.For different Applications, it may be advantageous in workshops or in industrial manufacturing in addition to that provided To provide compressed air even under pressurized nitrogen. To provide nitrogen, it is known to be selectively permeable To use filters that contain compressed air supplied on the inlet side separate a nitrogen component and a so-called purge gas. With that Nitrogen separated from the ambient air can be used, for example, in car tires filled become. As is known, there is approximately 78% nitrogen in the ambient air contain.

Aus der DE 199 41 057 C1 ist Druckwechseladsorbptionsverfahren bekannt, mit dem eine Gewinnung von bis zu 95 Volumenprozent reinem Sauerstoff mit einem Rest-Stickstoffgehalt von weniger als 1 Volumenprozent aus Luft ermöglicht wird. Der in einem Adsorberbett enthaltene Stickstoff wird als Abgas abgeführt.From the DE 199 41 057 C1 pressure swing adsorption process is known, with which a recovery of up to 95 volume percent pure oxygen with a residual nitrogen content of less than 1 volume percent is made possible from air. The nitrogen contained in an adsorber bed is discharged as exhaust gas.

Der Erfindung liegt die Aufgabe zugrunde, eine stationäre Druckgasanlage so weiterzubilden, dass an dieser auch unter Druck stehender Stickstoff zusätzlich zu der vorhandenen Druckluft bereitgestellt werden kann.The The invention has for its object a stationary pressurized gas system to be further developed so that nitrogen, which is also under pressure, also increases the existing compressed air can be provided.

Die Lösung dieser Aufgabe erhält man durch die im Anspruch 1 angegebenen Merkmale. Die erfindungsgemäße stationäre Druckgasanlage umfasst einen Stickstoff Druckspeicher der mittels eines Stickstofferzeugers, der vorzugsweise eine selektiv permeable Gasfiltereinheit beinhaltet, mit Stickstoff befüllt wird, wobei für den Druckaufbau im Stickstoff Druckspeicher die vorhandene Druckluft verwendet wird. Über eine Stickstoff Druckleitung kann der unter Druck stehende Stickstoff an unterschiedlichen Stellen im Raum zur Verfügung gestellt werden, wobei hierfür vorzugsweise mehrere Druckgasanschlüsse an der Stickstoff Druckleitung vorgesehen sind. Je nach Anwendungszweck kann der Benutzer entweder Druckluft oder unter Druck stehenden Stickstoff den entsprechenden Druckleitungen entnehmen, um beispielsweise Autoreifen zu füllen oder mit Druckgas betriebene Werkzeuge zu betreiben. Auch zum Ausblasen oder für andere Reinigungszwecke steht dem Benutzer dann nicht nur Druckluft, sondern auch Stickstoff zur Verfügung.The solution receives this task one by the features specified in claim 1. The stationary compressed gas system according to the invention comprises a nitrogen pressure accumulator that uses a nitrogen generator, which preferably includes a selectively permeable gas filter unit, filled with nitrogen being, for the pressure build-up in the nitrogen pressure accumulator the existing compressed air is used. about a nitrogen pressure line can be the pressurized nitrogen be made available at different locations in the room, preferably for this purpose several compressed gas connections the nitrogen pressure line are provided. Depending on the application the user can either be compressed air or pressurized Take nitrogen from the corresponding pressure lines, for example To fill car tires or to operate tools operated with compressed gas. Also for blowing out or for other cleaning purposes are not only available to the user for compressed air, but also nitrogen available.

Die erfindungsgemäße stationäre Druckgasanlage hat wesentliche Sicherheitsvorteile gegenüber einer Anlage, bei der unter äußerst hohem Druck stehender Flüssigstickstoff zum Einsatz kommt. Die erfindungsgemäße Druckgasanlage wird in einem Druckbereich von ca. 10 bis 13 bar betrieben, wodurch hier erheblich niedrigere Sicherheitsanforderungen an die Druckgasanlage gestellt werden müssen.The stationary compressed gas system according to the invention has significant safety advantages over a system in which extremely high Liquid nitrogen under pressure is used. The compressed gas system according to the invention is in a pressure range operated from approx. 10 to 13 bar, which means considerably lower ones Safety requirements for the compressed gas system must be made.

Die Druckleitungen für Druckluft und für Stickstoff sind vorzugsweise in Form und/- Farbgebung unterschiedlich ausgebildet, damit der Benutzer die Druckleitungen sicher unterscheiden kann.The Pressure lines for Compressed air and for nitrogen are preferably in shape and / - coloring differently designed so that the user the pressure lines can safely differentiate.

Besonders vorteilhaft ist es, in der zur Gasfiltereinheit führenden Druckluftleitung ein steuerbares Absperrventil einzusetzen, welches bei vollständig befülltem Stickstoff Druckbehälter automatisch abgesperrt wird. Dadurch wird erreicht, dass die selektiv durchlässige Gasfiltereinheit nicht weiterhin mit Druckluft beaufschlagt wird, wenn der Stickstoff Druckbehälter bereits auf seinem maximalen Druckwert befüllt ist.Especially It is advantageous in the leading to the gas filter unit Compressed air line to use a controllable shut-off valve, which with completely filled nitrogen pressure vessel is automatically shut off. This ensures that the selectively permeable gas filter unit compressed air is no longer applied when the nitrogen pressure vessel is already is filled to its maximum pressure value.

Unnötig austretendes Spül-Gas und der damit an der Druckluftleitung auftretende Druckverlust werden dadurch vermieden.Leaving unnecessarily Purge gas and the pressure loss that occurs on the compressed air line thereby avoided.

Besonders vorteilhaft ist es auch ein Drosselventil und ein Volumenstrommessgerät in der zum Stickstoff Druckbehälter führenden Leitung vorzusehen, damit der Benutzer mittels Drosselverstellung einen gewünschten Volumenstrom einstellen kann. Damit kann der Benutzer eine Erhöhung oder eine Absenkung des gewünschten Reinheitsgrads für den Stickstoff wählen, da der Reinheitsgrad vom Volumenstrom abhängig ist. Es lassen sich Reinheitsgrade von 95 % bis über 99 % ohne weiteres erzielen.Especially It is also advantageous to have a throttle valve and a volume flow meter in the to the nitrogen pressure vessel leading Provide line so that the user by means of throttle adjustment desired Volume flow can adjust. So that the user can increase or a lowering of the desired Purity for choose the nitrogen, since the degree of purity depends on the volume flow. There are degrees of purity from 95% to over Achieve 99% easily.

Es besteht auch die Möglichkeit, eine automatische Steuerung des Volumenstroms mit entsprechenden Einrichtungen vorzusehen, um bei unterschiedlichen Druckdifferenzen zwischen Druckluftleitung und Stickstoff Druckspeicher einen stets gleichen Volumenstrom zu erhalten.It there is also the possibility an automatic control of the volume flow with appropriate Means to be provided to deal with different pressure differences always between compressed air line and nitrogen pressure accumulator to get the same volume flow.

Für den Betrieb der Gasfiltereinheit und zur Erzielung eines möglichst reinen Stickstoffs ist es vorteilhaft, der Gasfiltereinheit ein Partikelfilter und ein Aktivkohlefilter bzw. andere Schmutzfilter vorzuschalten.For the operation of the gas filter unit and to achieve the purest possible nitrogen, it is advantageous to use a particle filter and the gas filter unit connect an activated carbon filter or other dirt filter.

Die Schmutzfilter können über eine selbsttätig arbeitende Kondensatableitung beispielsweise in konstanten Zeitabschnitten durch Öffnen eines Magnetventils von angefallenem Kondensat befreit werden.The Dirt filters can have a automatic Working condensate drainage, for example, in constant time periods by opening of a solenoid valve to remove any condensate.

Der Druckbehälter für den Stickstoff besitzt vorzugsweise ein Volumen von mehreren 100 l, beispielsweise von 600 l. Vorteilhaft kann es aus Platzgründen und auch aus Sicherheitsgründen sein, wenn das Behältervolumen auf mehrere parallel geschaltete oder in Serie geschaltete kleinere Behälter aufgeteilt wird.The pressure vessel for the Nitrogen preferably has a volume of several 100 l, for example 600 l. It can be advantageous for reasons of space and also for security reasons be when the container volume to several smaller ones connected in parallel or in series Split containers becomes.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher erläutert.The The invention is explained in more detail below on the basis of exemplary embodiments.

Es zeigen:It demonstrate:

1 eine erfindungsgemäße stationäre Druckgasanlage mit Einrichtungen zur Erzeugung und Speicherung von Stickstoff, 1 a stationary compressed gas system according to the invention with devices for generating and storing nitrogen,

2 einen Stickstoff Druckbehälter mit einem daran montierten Stickstofferzeuger in der Vorderansicht und 2 a nitrogen pressure vessel with a nitrogen generator mounted on it in the front view and

3 den Stickstoff Druckspeicher von 2 in Seitenansicht. 3 the nitrogen pressure accumulator from 2 in side view.

Die in 1 dargestellte stationäre Druckgasanlage verwendet eine vorhandene Druckluft-Verteilerleitung 1, an die ein Stickstofferzeuger 2 über ein von Hand betätigbares Absperrventil 3 angeschlossen ist. Ausgangsseitig ist der Stickstofferzeuger 2 an einen Stickstoff Druckbehälter 4 angeschlossen. Der Stickstoff Druckbehälter 4 speist eine Stickstoff Verteilerleitung 5, die mehrere Druckgasanschlüsse 6 hat. Die Druckluft-Verteilerleitung 1 hat entsprechend ebenfalls mehrere Druckluftanschlüsse 7.In the 1 The stationary compressed gas system shown uses an existing compressed air distribution line 1 to which a nitrogen generator 2 via a manually operated shut-off valve 3 connected. The nitrogen generator is on the output side 2 to a nitrogen pressure vessel 4 connected. The nitrogen pressure vessel 4 feeds a nitrogen manifold 5 that have multiple compressed gas connections 6 Has. The compressed air distribution line 1 accordingly also has several compressed air connections 7 ,

Der Stickstofferzeuger 2 besteht aus einer selektiv permeablen Gasfiltereinheit 8, einem Partikelfilter 9, einem Aktivkohlefilter 10, einem steuerbaren Absperrventil 11, einem Drosselventil 12 und einem Volumenstrommessgerät 13. Über eine Kondensatleitung 14 kann in regelmäßigen Zeitabständen Kondensat in eine Ablassanlage 15 selbsttätig abgeleitet werden. Zu diesem Zweck kann die Kondensatleitung 14 in vorgegebenen Zeitabständen beispielsweise für zwei Sekunden geöffnet werden, wobei dann mit dem ohnehin vorhandenen Druck das Kondensat abgelassen wird.The nitrogen generator 2 consists of a selectively permeable gas filter unit 8th , a particle filter 9 , an activated carbon filter 10 , a controllable shut-off valve 11 , a throttle valve 12 and a volume flow meter 13 , Via a condensate line 14 can drain condensate into a drain system at regular intervals 15 are derived automatically. For this purpose the condensate line 14 be opened at predetermined time intervals, for example for two seconds, the condensate then being drained off with the pressure already present.

Die selektiv permeable Gasfiltereinheit 8 trennt die eingangsseitig an ihr anliegende Druckluft in einem an sich bekannten Filterverfahren in einen Stickstoffanteil und in einen Restgasanteil auf. Der Restgasanteil wird auch als Spül-Gas bezeichnet, welches an die Umgebung abgelassen wird. Der Stickstoffanteil gelangt über die Leitung 16 zum Stickstoff Druckbehälter 4, wobei mittels des Drosselventils 12 der Volumenstrom des Stickstoffs einstellbar ist. Um einen möglichst hohen Reinheitsgrad bei dem gespeicherten Stickstoff zu erhalten, muss der Volumenstrom entsprechend gering gewählt werden. Das Volumenstrommessgerät 13 dient dabei zur Kontrolle des jeweils eingestellten Volumenstroms.The selectively permeable gas filter unit 8th separates the compressed air on the inlet side into a nitrogen component and a residual gas component in a filter process known per se. The residual gas portion is also referred to as purge gas, which is released to the environment. The nitrogen content comes through the line 16 to the nitrogen pressure vessel 4 , by means of the throttle valve 12 the volume flow of nitrogen is adjustable. In order to obtain the highest possible degree of purity in the stored nitrogen, the volume flow must be chosen to be correspondingly low. The volume flow meter 13 serves to control the volume flow set in each case.

Das steuerbare Absperrventil 11 wird über eine Steuerleitung 17 gesperrt, wenn ein am Stickstoff Druckbehälter 4 angeschlossener Druckwächter 18 das Erreichen eines voreingestellten maximalen Druckwertes feststellt. Das geschlossene Absperrventil 11 bewirkt, dass die Gasfiltereinheit 8 nicht mehr mit Druckluft beaufschlagt wird und somit auch kein Spül-Gas mehr austritt. Ist also im Strichstoff-Druckbehälter 4 der maximale Druck erreicht, bleibt der Stickstofferzeuger 2 von der eingangsseitigen Druckluftleitung 19 abgeschaltet, so dass keine Druckluft mehr verbraucht wird.The controllable shut-off valve 11 is via a control line 17 locked when on the nitrogen pressure vessel 4 connected pressure switch 18 determines that a preset maximum pressure value has been reached. The closed shut-off valve 11 causes the gas filter unit 8th compressed air is no longer applied and therefore no purge gas escapes. So it's in the paint pressure tank 4 the maximum pressure is reached, the nitrogen generator remains 2 from the compressed air line on the input side 19 switched off so that compressed air is no longer used.

In 2 ist eine sehr kompakte Ausführung dargestellt, die den Stickstoff Druckbehälter 4 mit anmontiertem Stickstofferzeuger 2 zeigt. Die der 1 entsprechenden Einrichtungen sind hier mit den selben Bezugszahlen versehen. In der Seitenansicht von 3 ist auch die aus dem Stickstoff Druckbehälter 4 abgehende Druckleitung 5 ersichtlich, die hier mittig am Speicherbehälter abgeht.In 2 is shown a very compact version, the nitrogen pressure vessel 4 with mounted nitrogen generator 2 shows. The the 1 corresponding devices are provided with the same reference numbers here. In the side view of 3 is also the one from the nitrogen pressure vessel 4 outgoing pressure line 5 can be seen, which goes here in the middle of the storage tank.

Das Speichervolumen des Stickstoff Druckbehälters kann bei einer solchen stationären Druckgasanlage mehrere 100 l betragen, wobei im Ausführungsbeispiel ein Volumen von 300 l vorgesehen ist. Es können auch mehrere Stickstoff Druckbehälter parallel oder in Reihe miteinander verbunden werden, um größere Volumina zu realisieren.The The storage volume of the nitrogen pressure vessel can be one of these stationary Compressed gas system amount to several 100 l, in the exemplary embodiment a volume of 300 l is provided. You can also use multiple nitrogen Pressure tank in parallel or connected in series to create larger volumes to realize.

Claims (11)

Stationäre Druckgasanlage mit Einrichtungen zur Bereitstellung von Druckluft an wenigstens einem Druckluftanschluss (7), dadurch gekennzeichnet, dass an dem Druckluftanschluss (7) über einen mit Druckluft betriebenen Stickstofferzeuger (2) ein Stickstoff Druckspeicher (4) angeschlossen ist, in welchem der erzeugte Stickstoff unter Druck gespeichert ist, und dass vom Stickstoff Druckspeicher (4) eine Stickstoff Druckleitung abgeht.Stationary compressed gas system with devices for providing compressed air at at least one compressed air connection ( 7 ), characterized in that at the compressed air connection ( 7 ) via a nitrogen generator operated with compressed air ( 2 ) a nitrogen pressure accumulator ( 4 ) is connected, in which the nitrogen generated is stored under pressure, and that the nitrogen pressure accumulator ( 4 ) a nitrogen pressure line goes off. Stationäre Druckgasanlage nach Anspruch 1, dadurch gekennzeichnet, dass die Stickstoff Druckleitung eine Stickstoff Verteilerleitung (5) mit mehreren verteilt angeordneten Druckgasanschlüssen (6) ist.Stationary compressed gas system according to claim 1, characterized in that the nitrogen pressure line is a nitrogen distributor line ( 5 ) with more distributed compressed gas connections ( 6 ) is. Stationäre Druckgasanlage nach Anspruch 1, dadurch gekennzeichnet, dass die Druckgasanlage sowohl eine Druckluft-Verteilerleitung (1) als auch eine in Form und/oder Farbgebung abweichende Stickstoff Verteilerleitung (5) umfasst.Stationary compressed gas system according to claim 1, characterized in that the compressed gas system is both a compressed air distribution line ( 1 ) as well as a nitrogen manifold with different shape and / or color ( 5 ) includes. Stationäre Druckgasanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stickstofferzeuger (2) eine selektiv permeable Gasfiltereinheit (8) umfasst, die die durch sie hindurchströmende Druckluft in einen Stickstoffanteil und in ein nach außen abgeleitetes Restgas bzw. Spül-Gas aufspaltet.Stationary compressed gas system according to one of the preceding claims, characterized in that the nitrogen generator ( 2 ) a selectively permeable gas filter unit ( 8th ), which splits the compressed air flowing through it into a nitrogen component and into a residual gas or purge gas that is discharged to the outside. Stationäre Druckgasanlage nach Anspruch 4, dadurch gekennzeichnet, dass in einer zur Gasfiltereinheit (8) führenden Druckluftleitung (19) ein steuerbares Absperrventil (11) eingesetzt ist, das die Druckluftleitung (19) bei einem im Stickstoff Druckspeicher (4) auftretenden vorgegebenen oberen Druckwert absperrt und bei einem vorgegebenen unteren Druckwert öffnet.Stationary compressed gas system according to claim 4, characterized in that in a gas filter unit ( 8th ) leading compressed air line ( 19 ) a controllable shut-off valve ( 11 ) is used that the compressed air line ( 19 ) with a pressure accumulator in nitrogen ( 4 ) occurs occurring predetermined upper pressure value and opens at a predetermined lower pressure value. Stationäre Druckgasanlage nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass in einer von der Gasfiltereinheit (8) zum Stickstoff Druckspeicher (4) führenden Druckleitung (16) ein Drosselventil (12) oder eine andere Einrichtung zur Einstellung des Volumenstroms angeordnet ist.Stationary compressed gas system according to one of claims 4 or 5, characterized in that in one of the gas filter unit ( 8th ) to the nitrogen pressure accumulator ( 4 ) leading pressure line ( 16 ) a throttle valve ( 12 ) or another device for adjusting the volume flow is arranged. Stationäre Druckgasanlage nach Anspruch 6, dadurch gekennzeichnet, dass zur Messung des Volumenstroms in der zum Stickstoff Druckspeicher (4) führenden Leitung (16) ein Volumenstrommessgerät (13) eingesetzt ist.Stationary pressurized gas system according to claim 6, characterized in that for measuring the volume flow in the nitrogen pressure accumulator ( 4 ) leading management ( 16 ) a volume flow meter ( 13 ) is used. Stationäre Druckgasanlage nach einem der Ansprüche 6 oder 7, dadurch gekennzeichnet, dass der Volumenstrom mittels einer Volumensteuerung auf einen vorgegebenen maximalen Wert selbsttätig begrenzt wird.Stationary Pressurized gas system according to one of claims 6 or 7, characterized in that that the volume flow by means of a volume control to a predetermined maximum value automatically limited becomes. Stationäre Druckgasanlage nach Anspruch 8, dadurch gekennzeichnet, dass der Gasfiltereinheit (8) wenigstens ein Schmutzfilter vorgeschaltet ist, und dass eine selbsttätige Kondensatableitung an dem Schmutzfilter über eine Kondensatleitung (14) erfolgt.Stationary compressed gas system according to claim 8, characterized in that the gas filter unit ( 8th ) at least one dirt filter is connected upstream, and that automatic condensate drainage on the dirt filter via a condensate line ( 14 ) he follows. Stationäre Druckgasanlage nach Anspruch 9, dadurch gekennzeichnet, dass die Kondensatableitung (14) mittels einer Intervallschaltung in größeren Zeitabständen periodisch aktiviert wird.Stationary compressed gas system according to claim 9, characterized in that the condensate drain ( 14 ) is periodically activated at larger intervals by means of an interval switch. Stationäre Druckgasanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stickstoff Druckspeicher (4) durch mehrere parallel oder in Serie geschaltete Stickstoff Druckbehälter gebildet ist.Stationary compressed gas system according to one of the preceding claims, characterized in that the nitrogen pressure accumulator ( 4 ) is formed by several nitrogen pressure vessels connected in parallel or in series.
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Publication number Priority date Publication date Assignee Title
DE19941057C1 (en) * 1999-08-28 2001-01-11 Mahler Ags Gmbh Pressure swing adsorption process used for recovery of oxygen from air includes adding or removing gas through the inlet of an adsorption bed

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941057C1 (en) * 1999-08-28 2001-01-11 Mahler Ags Gmbh Pressure swing adsorption process used for recovery of oxygen from air includes adding or removing gas through the inlet of an adsorption bed

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