US20130025716A1 - Safe discharge of media - Google Patents

Safe discharge of media Download PDF

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Publication number
US20130025716A1
US20130025716A1 US13/363,817 US201213363817A US2013025716A1 US 20130025716 A1 US20130025716 A1 US 20130025716A1 US 201213363817 A US201213363817 A US 201213363817A US 2013025716 A1 US2013025716 A1 US 2013025716A1
Authority
US
United States
Prior art keywords
medium
gas jet
jet compressor
safety valve
media
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.)
Abandoned
Application number
US13/363,817
Inventor
Matthias Bohn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde GmbH
Original Assignee
Linde GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Assigned to LINDE AKTIENGESELLSCHAFT reassignment LINDE AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOHN, MATTHIAS
Assigned to LINDE AKTIENGESELLSCHAFT reassignment LINDE AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOHN, MATTHIAS
Publication of US20130025716A1 publication Critical patent/US20130025716A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • 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
    • F17C2205/0332—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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • 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
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump

Definitions

  • the invention relates to a device for discharging a gaseous medium.
  • the object of the present invention is to specify a device for discharging a gaseous medium, which avoids the above-mentioned disadvantages and in particular allows the safe discharge or blowing off of hazardous media.
  • a device for discharging a gaseous medium which has a discharge line, in which a safety valve and a gas jet compressor connected downstream from the safety valve are arranged.
  • At least one storage container be assigned to the gas jet compressor.
  • a pressure measuring device is assigned to the gas jet compressor on the suction side.
  • the core of the present invention is to combine a safety valve with a gas jet compressor in such a manner that the medium to be discharged is applied to the compressor as soon as the safety valve responds.
  • the medium to be discharged therefore functions as the propellant in the gas jet compressor. Since it is pressurized, because of the high outflow velocity in the gas jet compressor, a partial vacuum is generated on the suction side of its injector nozzle. Multiple intake openings, for example, in the form of a ring gap, are typically located in the partial vacuum area of this nozzle. Either air from the atmosphere or a second medium, which is not identical to the medium to be discharged, can now be suctioned in via these intake openings.
  • Air from the atmosphere can normally only be suctioned in if the mixing of air and medium to be discharged does not result in the formation of a critical or hazardous gas mixture.
  • the supply of a second medium is always necessary if safe discharge of the first medium is only possible after mixing or dilution with a second, preferably inert medium.
  • nitrogen can be used as the second medium.
  • the ignition limit of the resulting methane-nitrogen mixture can be reduced sufficiently that ignition can be effectively prevented and the discharge of the methane or methane-nitrogen mixture to the atmosphere is therefore possible without problems.
  • toxic media to be discharged which are sufficiently diluted by the admixture of a suitable second medium that a hazard can be prevented.
  • a second medium can also be admixed thereto, which results in a targeted neutralizing reaction between the toxic medium and the second medium, so that a hazard is also prevented when the toxic medium is blown off.
  • the device according to the invention for discharging a gaseous medium and further advantageous embodiments thereof are explained in greater detail hereafter on the basis of the exemplary embodiment shown in the FIGURE.
  • a pressurized medium or gas is withdrawn from an (industrial) process P or from a storage container and, after response of the safety valve 2 , discharged via the gas jet compressor 3 connected downstream from the safety valve 2 to the atmosphere 5 .
  • the partial vacuum side of the gas jet compressor 3 is supplied with atmospheric air or a second medium via line 4 .
  • the second medium can be taken from a storage container S assigned to the gas jet compressor 3 in this case, for example.
  • a measuring device can be provided on the suction side of the ejector or gas jet compressor 3 , by means of which a partial vacuum can be measured. This represents an indicator for the leakiness of the safety valve 2 .
  • the device according to the invention for discharging a gaseous medium results in a significant increase of the safety in case of discharge or blowing off of critical media via safety valves.
  • the device according to the invention does not require any additional energy supply or measuring or regulating units.

Abstract

A device for discharging a gaseous medium contains a discharge line, in which a safety valve and a gas jet compressor connected downstream from the safety valve are arranged. Furthermore, at least one storage container is preferably assigned to the gas jet compressor.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • This application claims priority from German Patent Application No. 102011015431.0, filed Mar. 29, 2011.
    • BACKGROUND OF THE INVENTION
  • The invention relates to a device for discharging a gaseous medium.
  • In manifold industrial processes and in the storage of industrial gases and gas mixtures, for example, hydrogen or methane, it is necessary to emit or blow off (gaseous) media which are combustible, highly flammable, and/or toxic into the atmosphere. If these media are provided under elevated pressure, safety valves are typically provided, which open in case of hazard—i.e., if the pressure inside the system exceeds a predefined threshold value—so that the medium can be discharged and the system can be protected from damage by bursting.
  • This discharge or blowing off of hazardous media into the atmosphere is connected with a further hazard under certain circumstances, however, since combustible gases, such as methane, can form an explosive mixture by mixing with air, which can cause great damage in case of an accidental ignition. Endangerment, in particular of persons, in the nearby environment can also occur during the exit of toxic media, if adequate dilution is not achieved.
    • SUMMARY OF THE INVENTION
  • The object of the present invention is to specify a device for discharging a gaseous medium, which avoids the above-mentioned disadvantages and in particular allows the safe discharge or blowing off of hazardous media.
  • To achieve this object, a device for discharging a gaseous medium is proposed, which has a discharge line, in which a safety valve and a gas jet compressor connected downstream from the safety valve are arranged.
  • To refine the device according to the invention, it is proposed that at least one storage container be assigned to the gas jet compressor.
  • According to a further advantageous embodiment of the device according to the invention, a pressure measuring device is assigned to the gas jet compressor on the suction side.
  • The core of the present invention is to combine a safety valve with a gas jet compressor in such a manner that the medium to be discharged is applied to the compressor as soon as the safety valve responds. The medium to be discharged therefore functions as the propellant in the gas jet compressor. Since it is pressurized, because of the high outflow velocity in the gas jet compressor, a partial vacuum is generated on the suction side of its injector nozzle. Multiple intake openings, for example, in the form of a ring gap, are typically located in the partial vacuum area of this nozzle. Either air from the atmosphere or a second medium, which is not identical to the medium to be discharged, can now be suctioned in via these intake openings.
  • Air from the atmosphere can normally only be suctioned in if the mixing of air and medium to be discharged does not result in the formation of a critical or hazardous gas mixture. The supply of a second medium is always necessary if safe discharge of the first medium is only possible after mixing or dilution with a second, preferably inert medium. For example, to be able to implement a safe discharge of methane, nitrogen can be used as the second medium. Upon appropriate admixture of nitrogen to methane, the ignition limit of the resulting methane-nitrogen mixture can be reduced sufficiently that ignition can be effectively prevented and the discharge of the methane or methane-nitrogen mixture to the atmosphere is therefore possible without problems.
  • This is also true for toxic media to be discharged, which are sufficiently diluted by the admixture of a suitable second medium that a hazard can be prevented. A second medium can also be admixed thereto, which results in a targeted neutralizing reaction between the toxic medium and the second medium, so that a hazard is also prevented when the toxic medium is blown off.
  • Because of the high outflow velocity of the medium to be discharged inside the gas jet compressor, a comparatively high intake power of atmospheric air or the second medium is achieved on the partial vacuum side. A sufficiently high dilution of the critical medium to be discharged results therefrom.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The device according to the invention for discharging a gaseous medium and further advantageous embodiments thereof are explained in greater detail hereafter on the basis of the exemplary embodiment shown in the FIGURE.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • Via a discharge line 1, a pressurized medium or gas is withdrawn from an (industrial) process P or from a storage container and, after response of the safety valve 2, discharged via the gas jet compressor 3 connected downstream from the safety valve 2 to the atmosphere 5. The partial vacuum side of the gas jet compressor 3 is supplied with atmospheric air or a second medium via line 4. The second medium can be taken from a storage container S assigned to the gas jet compressor 3 in this case, for example.
  • The problem often occurs that the safety valve 2 becomes leaky or no longer closes tightly. This results in permanent and possibly undesired outflow of the medium or gas from the process P or the storage container. To avoid this, a measuring device can be provided on the suction side of the ejector or gas jet compressor 3, by means of which a partial vacuum can be measured. This represents an indicator for the leakiness of the safety valve 2.
  • The device according to the invention for discharging a gaseous medium results in a significant increase of the safety in case of discharge or blowing off of critical media via safety valves. The device according to the invention does not require any additional energy supply or measuring or regulating units.

Claims (3)

1. A device for discharging a gaseous medium, comprising a discharge line, in which a safety valve and a gas jet compressor connected downstream from the safety valve are arranged.
2. The device according to claim 1, characterized in that at least one storage container is assigned to the gas jet compressor.
3. The device according to claim 1, characterized in that a pressure measuring device is assigned to the gas jet compressor on the suction side.
US13/363,817 2011-03-29 2012-02-01 Safe discharge of media Abandoned US20130025716A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011015431.0 2011-03-29
DE201110015431 DE102011015431A1 (en) 2011-03-29 2011-03-29 Safe removal of media

Publications (1)

Publication Number Publication Date
US20130025716A1 true US20130025716A1 (en) 2013-01-31

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US13/363,817 Abandoned US20130025716A1 (en) 2011-03-29 2012-02-01 Safe discharge of media

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US (1) US20130025716A1 (en)
EP (1) EP2505517A1 (en)
DE (1) DE102011015431A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170126174A1 (en) * 2015-09-01 2017-05-04 Yotrio Group Co., Ltd. Solar table
US20180328540A1 (en) * 2015-11-11 2018-11-15 Bayerische Motoren Werke Aktiengesellschaft Safety Valve for a Pressure Vessel, Comprising a Discharge Line

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871458A (en) * 1971-12-14 1975-03-18 Ethylene Plastique Soc Device for suppressing the ignition or explosion of escaping combustible gases under high pressure
US20020041836A1 (en) * 2000-10-02 2002-04-11 Tetsuo Komai Combustion type waste gas treatment system
US7228687B2 (en) * 2004-08-12 2007-06-12 Vat Holding Ag Valve device
US7255136B2 (en) * 2004-08-30 2007-08-14 Delaware Capital Formation, Inc. Packing vent recovery system and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2866475A (en) * 1954-09-01 1958-12-30 Exxon Research Engineering Co Vent for pressure relief valve
US3965689A (en) * 1974-07-18 1976-06-29 University Engineers, Inc. Venting of cryogenic storage tanks
FR2766554B1 (en) * 1997-07-22 1999-09-03 Clesse Ind SAFETY DEVICE FOR A TANK FOR CONTAINING A FLAMMABLE FLUID, ESPECIALLY A PRESSURIZED FLUID

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871458A (en) * 1971-12-14 1975-03-18 Ethylene Plastique Soc Device for suppressing the ignition or explosion of escaping combustible gases under high pressure
US20020041836A1 (en) * 2000-10-02 2002-04-11 Tetsuo Komai Combustion type waste gas treatment system
US7228687B2 (en) * 2004-08-12 2007-06-12 Vat Holding Ag Valve device
US7255136B2 (en) * 2004-08-30 2007-08-14 Delaware Capital Formation, Inc. Packing vent recovery system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170126174A1 (en) * 2015-09-01 2017-05-04 Yotrio Group Co., Ltd. Solar table
US20180328540A1 (en) * 2015-11-11 2018-11-15 Bayerische Motoren Werke Aktiengesellschaft Safety Valve for a Pressure Vessel, Comprising a Discharge Line
US11092291B2 (en) * 2015-11-11 2021-08-17 Bayerische Motoren Werke Aktiengesellschaft Safety valve for a pressure vessel, comprising a discharge line

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Publication number Publication date
EP2505517A1 (en) 2012-10-03
DE102011015431A1 (en) 2012-10-04

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Legal Events

Date Code Title Description
AS Assignment

Owner name: LINDE AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOHN, MATTHIAS;REEL/FRAME:027677/0195

Effective date: 20120206

AS Assignment

Owner name: LINDE AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOHN, MATTHIAS;REEL/FRAME:027907/0201

Effective date: 20120206

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION