US3915620A - Flare system vapor recovery - Google Patents

Flare system vapor recovery Download PDF

Info

Publication number
US3915620A
US3915620A US504348A US50434874A US3915620A US 3915620 A US3915620 A US 3915620A US 504348 A US504348 A US 504348A US 50434874 A US50434874 A US 50434874A US 3915620 A US3915620 A US 3915620A
Authority
US
United States
Prior art keywords
flare
compressor
vapors
flow
conduit
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
Application number
US504348A
Other languages
English (en)
Inventor
Robert D Reed
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.)
KGI Inc
Original Assignee
John Zink Co
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 John Zink Co filed Critical John Zink Co
Priority to US504348A priority Critical patent/US3915620A/en
Priority to GB33420/75A priority patent/GB1506024A/en
Priority to NL7510049A priority patent/NL7510049A/xx
Priority to DE19752539414 priority patent/DE2539414A1/de
Priority to CA234,816A priority patent/CA1046926A/en
Priority to FR7527323A priority patent/FR2284090A1/fr
Priority to IT51227/75A priority patent/IT1044480B/it
Priority to JP50109415A priority patent/JPS5153636A/ja
Application granted granted Critical
Publication of US3915620A publication Critical patent/US3915620A/en
Assigned to KOCH ENGINEERING COMPANY, INC. reassignment KOCH ENGINEERING COMPANY, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: JOHN ZINK COMPANY
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/50—Control or safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/08—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/08—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks
    • F23G7/085—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks in stacks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2208/00—Safety aspects

Definitions

  • Flared gases may be considered as vapors generally and thus the term vapor recovery will be applied to this condition of the removal and utilization of excess flare gas or vapors since combustibles as relieved to the flare system may be considered as being in vapor phase.
  • the system can be used with a flare system which utilizes a water seal or with a system that does not utilize a water seal.
  • initial compressor operation cannot, by control, occur until such time as flow to the flare exists in adequate quantity thus there is flarebumed loss of the quantity of vapor which moves from the system to the flare before vapor recovery can begin.
  • initial compressor operation occurs, only a small quantity of vapors is withdrawn from the flare system until such time as the flare system flow increases.
  • FIG. 1 represents a control system applied to a flare system which does not utilize the water seal.
  • FIG. 2 represents a control system applied to a flair system which does utilize a water seal.
  • FIG. 1 A portion of the flare vapor flow system is indicated by the conduit 1'2.
  • Arrow 14 indicates the direction of flow of flare vaporswithin the system from sources.
  • Arrow 16 represents the direction of flow of flare vapors to the flare stack and to the atmosphere.
  • Dashed enclosure 18 represents a sensor system sensitive to the flow rate of gases in the conduit 12 and also sesitive to the pressure in the conduit 12. No particular kind of sensor ineans are required, the only requirement beingthat the sensor signal output be a selected function of the pressure and flow rate.
  • the signal on line 22 also goes by line 32 and 34 to a pressure switch 40.
  • This switch receives electrical power over the leads 38 to control a starting relay or contactor 42, which controls the power line 44 through leads 45. 46 and 47 to supply power to the driving motor 48,through shaft connection 50 to compressor 52.
  • Compressor 52 is adapted to take the flare vapors from the conduit 12 through conduit 55 and valve 54 to compress them to a pressure suitable for combustion apparatus. and to deliver the compressed vapors through conduit 57 and check valve 58 in accordance with arrow 59. Conduit 49 beyond the check valve then goes to a fuel system for combustion in various pieces of equipment.
  • check valve 58 The purpose of the check valve 58 is to prevent flow of combustion gases from the fuel system connected'to conduit 49 back into the compressor and into the flare conduit 12, since this would be waste of good fuel. Consequently. the flow of vapors from the flare system 12 into the fuel combustion system 49 occurs only when conditions are right in the flare system.
  • the flow of flare vapors to the compressor is indicated by arrow 56.
  • valve 54 There is a bypass around valve 54 and an orifice 51 of such size as to maintain a selected minimum flow of gas into the compressor even though the valve 54 is closed.
  • the control valve 54 is normally closed and on signal from 18 through lead 36 the valve will open and allow additional flow of vapor from the flare system 12 as flow in 12 increases.
  • the purpose of the bypass orifice 51 is to permit the sudden starting of the compressor and limiting the flow of gas at the start so as not to upset the flow conditions in the flare system. and perhaps cause the inflow of air into the stack.
  • the valve 54 is provided for the purpose of controlling the withdrawal of flare vapors as the flow 14 increases. For example, if at a low rate of flow of flare vapors the suction to the compressor should be unrestricted as the compressor starts, this would cause abrupt withdrawal of too large a volume of vapor from the conduit 12 in accordance with the arrow 56 and a shock effect would result which would in effect reduce the pressure to the point that the compressor is shut off. The pressure would then rise because of the stoppage of the flow 56 and the compressor would start again and the same shock effects would occur.
  • valve 54 which remains closed until after the compressor has been started.
  • the compressor has a minimum flow through the orifice 51.
  • the control 18 provides a proper signal through lead 36 to the valve 54 so that as the volume of flare gas increases the volume of vapors withdrawn in accordance with arrows 56 similarly increases to maintain the selected minimum 16 of flow of vapors to the stack.
  • conduit 64 carries the flare vapors in accordance with arrows 65 and 66 to the stack, for combustion.
  • a side conduit 76 leads to valve 74 and compressor 92.
  • the output of the compressor goes by conduit 94 in accordance with arrow through check valve 96 to conduit 97 and to the fuel system where it can be burned in boilers or other apparatus which requires fuel.
  • FIG. 1 the conduit 64 carries the flare vapors in accordance with arrows 65 and 66 to the stack, for combustion.
  • a side conduit 76 leads to valve 74 and compressor 92.
  • the output of the compressor goes by conduit 94 in accordance with arrow through check valve 96 to conduit 97 and to the fuel system where it can be burned in boilers or other apparatus which requires fuel.
  • valve 94 take control and provides a proportional flow of vapors from the conduit 64 into the fuel system.
  • FIG. 2 there is downstream of the arrow 66 a water seal through which all vapors must pass in their flow to the stack.
  • the conduit 64 turns downward at 64' and is immersed in a chamber filled with water 102 to a level 108.
  • the chamber 100 has an upward pipe 106 which carries gases 66' to the stack.
  • the depth of immersion or hydrostatic level through which the gases must pass is indicated by the dimension 104.
  • the pressure in the conduit 64 is dietated by the depth of immersion of an entry duct into the water of the water seal.
  • the pressure in-conduit 64 at static flow condition is measured as inches of water column, according to the pressure required for dis placement of the water content of the duct which is water immersed.
  • the pressure in conduit 64 must be greaterthan the depth of immersion in order for flare gas to move toward the stack.
  • the pressure transmitted by conduit 78 to the pressure switch 80 causes the switch 80 to deliver control power to the relay or contactor 84 being supplied through power lead 82 through the switch 80.
  • the relay 84 closes, power supplied by leads 86 is then permitted to flow to the motor 88 which drives the compressor 92 through the shaft 90.
  • the compressor 92 running, a minimum flow of vapor 77 from the conduit 64 flows through the conduit 76 and the orifice 75 through the compressor and conduit 94 and through the check valve 96 to the fuel system 97.
  • the amount of vapors flowing through the orifice 75 is small enough so that it does not radically upset pressure in the conduit 64.
  • flare vapors can be salvaged from the flare system, compressed and combined with other fuel into a fuel system, without endangering the operation of the flare system.
  • the amount of flare gases withdrawn is a function of the amount of flare gases provided to the flare system and is never more than the minimum required to keep the system operating properly and safely.
  • the senor 18 has been shown as a single unitary element it will be clear that it can comprise more than one element responsive separately to flow rate and to pressure.
  • Flares are used because, for safety reasons, it is at times necessary to pressure-relieve process systems where the vapors relieved are combustible to a degree which makes them valuable as fuels (hydrocarbons) or they have value because of their nature.
  • Recovery of flared vapors is in proportion to the speed/pressure of movement of the vapors through the flare system toward the flare where fuelvalue is lost through burning in the atmosphere.
  • the volume of vapors moving flareward is 3,600 CFH CFM) per square foot of system line area.
  • the volume of gases (vapor) to the flare for burning is 2,96 X 3,600 10,656 CFH (cubic feet per hour).
  • the flare system is designed for complete emergency relief of vapors but such a condition of emergency is rare and, in fact may never occur. Years of experience with flare systems show clearly that, for 99.9 percent of flare operating time, velocity within the flare system is maximal at 40/second with average velocity in the order of from 10 to 20 feet per second when pressure relief is required.
  • Relieved vapor movement through the flare system does not occur constantly but does occur, as a weighted estimate, approximately 8% of the operating time for the flare where operating time may be considered as the time the flare is ready to accept burn/flared vapors.
  • Average flare line velocity may vary considerably but l0/second is a reasonable assumption. Maximum vapor recovery in any case is according to compressor capacity when vapor relief to the flare system is occurmg.
  • a vapor recovery system comprising:
  • conduit means for the flow of flare vapors from a source thereof to a flare stack where the vapors are expelled to the atmosphere and burned;
  • sensor means connected to said conduit means for sensing the pressure and/or flow rate of said flare vapors in said conduit means, and means to generate a sensor signal which is a'selected function of the said pressure and/or flow rate;
  • motor means driving compressor means, the compressor inlet connected to said conduit means through normally closed first valve means, the compressor outlet connected through check valve means to-a-fuel'using system;
  • bypass conduit means connected around said firstvalve means to pass a selected minimum vapor. flow from said conduit means to said compressor .inlet when said compressor is running.
  • conduit means for the flow of flare vapors from a source thereof to-a flare stack where the vapors are expelled to the atmosphere and burned;
  • sensor means connected to said conduit means for sensing the pressure of said flare vapors in said con duit means, and means to generate a sensor signal ⁇ vhich'is selected function of said pressure
  • motor means driving compressor means, the compressor inlet connected to said conduit means through normally closed first valve means, the compressor outlet connected through check valve means to a fuel using system:

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Pipeline Systems (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
US504348A 1974-09-09 1974-09-09 Flare system vapor recovery Expired - Lifetime US3915620A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US504348A US3915620A (en) 1974-09-09 1974-09-09 Flare system vapor recovery
GB33420/75A GB1506024A (en) 1974-09-09 1975-08-11 Flare system vapour recovery
NL7510049A NL7510049A (nl) 1974-09-09 1975-08-26 Inrichting voor het terugwinnen van brandbare dampen uit fakkelsystemen.
CA234,816A CA1046926A (en) 1974-09-09 1975-09-04 Flare system vapor recovery
DE19752539414 DE2539414A1 (de) 1974-09-09 1975-09-04 Gasrueckgewinnungssystem fuer eine fackelanlage
FR7527323A FR2284090A1 (fr) 1974-09-09 1975-09-05 Installation de recuperation des vapeurs combustibles d'une torche de brulage
IT51227/75A IT1044480B (it) 1974-09-09 1975-09-08 Apparecchio per il recupero di vapori combustibili da impianti di trattamento a torcia
JP50109415A JPS5153636A (en) 1974-09-09 1975-09-09 Haijokifureashisutemu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US504348A US3915620A (en) 1974-09-09 1974-09-09 Flare system vapor recovery

Publications (1)

Publication Number Publication Date
US3915620A true US3915620A (en) 1975-10-28

Family

ID=24005878

Family Applications (1)

Application Number Title Priority Date Filing Date
US504348A Expired - Lifetime US3915620A (en) 1974-09-09 1974-09-09 Flare system vapor recovery

Country Status (8)

Country Link
US (1) US3915620A (ja)
JP (1) JPS5153636A (ja)
CA (1) CA1046926A (ja)
DE (1) DE2539414A1 (ja)
FR (1) FR2284090A1 (ja)
GB (1) GB1506024A (ja)
IT (1) IT1044480B (ja)
NL (1) NL7510049A (ja)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095934A (en) * 1977-03-24 1978-06-20 Mobil Oil Corporation Waste gas recovery
US4144014A (en) * 1977-01-04 1979-03-13 Ciba-Geigy Corporation Process for the thermal combustion of waste gases and thermal after-burning plant for carrying out said process
WO1996010719A1 (en) * 1994-10-03 1996-04-11 Harald Hystad A device for burning gas from a production plant for oil or gas
US20060240369A1 (en) * 2005-04-26 2006-10-26 Heat Recovery Systems, Llc Waste heat recovery system
US20060240368A1 (en) * 2005-04-26 2006-10-26 Heat Recovery Systems, Llc Gas induction bustle for use with a flare or exhaust stack
CN103363529A (zh) * 2012-03-28 2013-10-23 月岛机械株式会社 加压流动炉设备的调节阀控制装置及控制方法
US8585869B1 (en) 2013-02-07 2013-11-19 Heartland Technology Partners Llc Multi-stage wastewater treatment system
US8679291B2 (en) 2007-03-13 2014-03-25 Heartland Technology Partners Llc Compact wastewater concentrator using waste heat
US8721771B2 (en) 2011-01-21 2014-05-13 Heartland Technology Partners Llc Condensation plume mitigation system for exhaust stacks
US8741100B2 (en) 2007-03-13 2014-06-03 Heartland Technology Partners Llc Liquid concentrator
US8741101B2 (en) 2012-07-13 2014-06-03 Heartland Technology Partners Llc Liquid concentrator
US8790496B2 (en) 2007-03-13 2014-07-29 Heartland Technology Partners Llc Compact wastewater concentrator and pollutant scrubber
US8801897B2 (en) 2007-03-13 2014-08-12 Heartland Technology Partners Llc Compact wastewater concentrator and contaminant scrubber
US8808497B2 (en) 2012-03-23 2014-08-19 Heartland Technology Partners Llc Fluid evaporator for an open fluid reservoir
US9199861B2 (en) 2013-02-07 2015-12-01 Heartland Technology Partners Llc Wastewater processing systems for power plants and other industrial sources
US9296624B2 (en) 2011-10-11 2016-03-29 Heartland Technology Partners Llc Portable compact wastewater concentrator
US9808738B2 (en) 2007-03-13 2017-11-07 Heartland Water Technology, Inc. Compact wastewater concentrator using waste heat
US20170336071A1 (en) * 2014-12-01 2017-11-23 Chiyoda Corporation Equipment safety management device, equipment safety management method, and natural gas liquefaction device
US10005678B2 (en) 2007-03-13 2018-06-26 Heartland Technology Partners Llc Method of cleaning a compact wastewater concentrator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2758819A1 (de) * 1977-12-30 1979-07-12 Hoechst Ag Verfahren und vorrichtung zum einleiten von explosiblen gasen in einen brennraum

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888981A (en) * 1954-03-24 1959-06-02 Republic Steel Corp Automatic gas bleeder igniter
US3741713A (en) * 1972-03-10 1973-06-26 Zink Co John Purge gas admission control for flare system
US3837785A (en) * 1973-05-29 1974-09-24 Phillips Petroleum Co Apparatus for delivering waste fluids for combustion
US3852023A (en) * 1972-12-27 1974-12-03 Hitachi Shipbuilding Eng Co Apparatus disposing waste gas by burning

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433218A (en) * 1964-07-03 1969-03-18 Peter Von Wiesenthal Off gas firing system
FR1497628A (fr) * 1966-08-24 1967-10-13 Alcorn Comb Co Installation pour brûler les gaz provenant d'un générateur catalytique
US3782880A (en) * 1972-09-20 1974-01-01 Gulf Oil Corp Control system to automatically maintain a smokeless flare
FR2248469A1 (en) * 1973-10-19 1975-05-16 Zink Co John Burner system for destruction of waste gases - giving complete combustion at varying flow rates with min. air pollution

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888981A (en) * 1954-03-24 1959-06-02 Republic Steel Corp Automatic gas bleeder igniter
US3741713A (en) * 1972-03-10 1973-06-26 Zink Co John Purge gas admission control for flare system
US3852023A (en) * 1972-12-27 1974-12-03 Hitachi Shipbuilding Eng Co Apparatus disposing waste gas by burning
US3837785A (en) * 1973-05-29 1974-09-24 Phillips Petroleum Co Apparatus for delivering waste fluids for combustion

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4144014A (en) * 1977-01-04 1979-03-13 Ciba-Geigy Corporation Process for the thermal combustion of waste gases and thermal after-burning plant for carrying out said process
US4095934A (en) * 1977-03-24 1978-06-20 Mobil Oil Corporation Waste gas recovery
AU707910B2 (en) * 1994-10-03 1999-07-22 Hystad, Anne Elise A device for burning gas from a production plant for oil or gas
GB2310490A (en) * 1994-10-03 1997-08-27 Harald Hystad A device for burning gas from a production plant for oil or gas
GB2310490B (en) * 1994-10-03 1998-07-29 Harald Hystad A device for burning gas from a production plant for oil or gas
US5810578A (en) * 1994-10-03 1998-09-22 Hystad, Deceased; Harald Device for burning gas from a production plant for oil or gas
WO1996010719A1 (en) * 1994-10-03 1996-04-11 Harald Hystad A device for burning gas from a production plant for oil or gas
US20060240369A1 (en) * 2005-04-26 2006-10-26 Heat Recovery Systems, Llc Waste heat recovery system
US20060240368A1 (en) * 2005-04-26 2006-10-26 Heat Recovery Systems, Llc Gas induction bustle for use with a flare or exhaust stack
US7442035B2 (en) 2005-04-26 2008-10-28 Gei Development, Llc Gas induction bustle for use with a flare or exhaust stack
US20090053659A1 (en) * 2005-04-26 2009-02-26 Gei Development Llc Gas induction bustle for use with a flare or exhaust stack
US8172565B2 (en) 2005-04-26 2012-05-08 Heartland Technology Partners Llc Gas induction bustle for use with a flare or exhaust stack
US8459984B2 (en) 2005-04-26 2013-06-11 Heartland Technology Partners Llc Waste heat recovery system
US11376520B2 (en) 2007-03-13 2022-07-05 Heartland Water Technology, Inc. Compact wastewater concentrator using waste heat
US8801897B2 (en) 2007-03-13 2014-08-12 Heartland Technology Partners Llc Compact wastewater concentrator and contaminant scrubber
US8679291B2 (en) 2007-03-13 2014-03-25 Heartland Technology Partners Llc Compact wastewater concentrator using waste heat
US9926215B2 (en) 2007-03-13 2018-03-27 Heartland Technology Partners Llc Compact wastewater concentrator and pollutant scrubber
US8741100B2 (en) 2007-03-13 2014-06-03 Heartland Technology Partners Llc Liquid concentrator
US10179297B2 (en) 2007-03-13 2019-01-15 Heartland Technology Partners Llc Compact wastewater concentrator using waste heat
US8790496B2 (en) 2007-03-13 2014-07-29 Heartland Technology Partners Llc Compact wastewater concentrator and pollutant scrubber
US10596481B2 (en) 2007-03-13 2020-03-24 Heartland Technology Partners Llc Compact wastewater concentrator using waste heat
US9808738B2 (en) 2007-03-13 2017-11-07 Heartland Water Technology, Inc. Compact wastewater concentrator using waste heat
US10005678B2 (en) 2007-03-13 2018-06-26 Heartland Technology Partners Llc Method of cleaning a compact wastewater concentrator
US10946301B2 (en) 2007-03-13 2021-03-16 Heartland Technology Partners Llc Compact wastewater concentrator using waste heat
US9617168B2 (en) 2007-03-13 2017-04-11 Heartland Technology Partners Llc Compact wastewater concentrator using waste heat
US8721771B2 (en) 2011-01-21 2014-05-13 Heartland Technology Partners Llc Condensation plume mitigation system for exhaust stacks
US9296624B2 (en) 2011-10-11 2016-03-29 Heartland Technology Partners Llc Portable compact wastewater concentrator
US8808497B2 (en) 2012-03-23 2014-08-19 Heartland Technology Partners Llc Fluid evaporator for an open fluid reservoir
US9943774B2 (en) 2012-03-23 2018-04-17 Heartland Technology Partners Llc Fluid evaporator for an open fluid reservoir
CN103363529A (zh) * 2012-03-28 2013-10-23 月岛机械株式会社 加压流动炉设备的调节阀控制装置及控制方法
CN103363529B (zh) * 2012-03-28 2015-11-18 月岛机械株式会社 加压流动炉设备的调节阀控制装置及控制方法
US8741101B2 (en) 2012-07-13 2014-06-03 Heartland Technology Partners Llc Liquid concentrator
US9199861B2 (en) 2013-02-07 2015-12-01 Heartland Technology Partners Llc Wastewater processing systems for power plants and other industrial sources
US8585869B1 (en) 2013-02-07 2013-11-19 Heartland Technology Partners Llc Multi-stage wastewater treatment system
US10378762B2 (en) * 2014-12-01 2019-08-13 Chiyoda Corporation Equipment safety management device, equipment safety management method, and natural gas liquefaction device
US20170336071A1 (en) * 2014-12-01 2017-11-23 Chiyoda Corporation Equipment safety management device, equipment safety management method, and natural gas liquefaction device

Also Published As

Publication number Publication date
JPS5153636A (en) 1976-05-12
DE2539414A1 (de) 1976-03-18
JPS5653161B2 (ja) 1981-12-17
NL7510049A (nl) 1976-03-11
FR2284090A1 (fr) 1976-04-02
FR2284090B1 (ja) 1980-01-25
IT1044480B (it) 1980-03-20
CA1046926A (en) 1979-01-23
GB1506024A (en) 1978-04-05

Similar Documents

Publication Publication Date Title
US3915620A (en) Flare system vapor recovery
US4101257A (en) Pilot gas conservation system for flare stacks
US4080149A (en) Pulse combustion control system
US3901643A (en) Temperature-pressure activated purge gas flow system for flares
US4101261A (en) Flare gas stack with purge gas conservation system
KR19980703070A (ko) 가스 터빈 연소기에서 파열을 검출하기 위한 방법 및 장치
CN104534508B (zh) 一种沼气安全燃烧控制装置及控制方法
CA1096292A (en) Accelerated response for delivery of smoke suppressant to flares
US4457691A (en) Pulse burners
CN204345708U (zh) 一种沼气安全燃烧控制装置
GB1063300A (en) Improvements relating to burner installations
US4402303A (en) Fan flow control device
US3135330A (en) Fire protection system
GB1049977A (en) Prime mover ignition device
GB1492400A (en) Inert gas system
CN2147400Y (zh) 一种空气止回阀
GB1516994A (en) Heat generators employing gas combustion
US3133667A (en) Safety system
CN111322106A (zh) 一种煤矿瓦斯钝化安全输送系统
US2058650A (en) Apparatus for preventing back flash in gas lines
JPS55151195A (en) System for preventing surging of fan or compressor
US983356A (en) Feed-water controller.
SU856465A1 (ru) Автоматическое устройство дл предотвращени взрывов и пожаров
JPS55109729A (en) Fuel control device for gas turbine
US1988063A (en) Boiler system including an economizer

Legal Events

Date Code Title Description
AS Assignment

Owner name: KOCH ENGINEERING COMPANY, INC., KANSAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JOHN ZINK COMPANY;REEL/FRAME:005249/0775

Effective date: 19891004