US20130341055A1 - Electrically operated gas vent for fire protection sprinkler systems - Google Patents

Electrically operated gas vent for fire protection sprinkler systems Download PDF

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Publication number
US20130341055A1
US20130341055A1 US13/907,165 US201313907165A US2013341055A1 US 20130341055 A1 US20130341055 A1 US 20130341055A1 US 201313907165 A US201313907165 A US 201313907165A US 2013341055 A1 US2013341055 A1 US 2013341055A1
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US
United States
Prior art keywords
gas vent
piping network
sensor
discharge
valve
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
US13/907,165
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English (en)
Inventor
Jeffrey T. Kochelek
Adam H. Hilton
Lucas E. Kirn
Matthew James Kochelek
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.)
Engineered Corrosion Solutions LLC
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Engineered Corrosion Solutions LLC
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 Engineered Corrosion Solutions LLC filed Critical Engineered Corrosion Solutions LLC
Priority to US13/907,165 priority Critical patent/US20130341055A1/en
Publication of US20130341055A1 publication Critical patent/US20130341055A1/en
Assigned to ENGINEERED CORROSION SOLUTIONS, LLC reassignment ENGINEERED CORROSION SOLUTIONS, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KOCHELEK, MATTHEW JAMES, HILTON, ADAM H., KIRN, LUCAS E., KOCHELEK, JEFFREY T.
Assigned to ENGINEERED CORROSION SOLUTIONS, LLC reassignment ENGINEERED CORROSION SOLUTIONS, LLC CORRECTIVE ASSIGNMENT TO CORRECT THE ZIP CODE OF THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 036961 FRAME 0693. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: KOCHELEK, MATTHEW JAMES, HILTON, ADAM H., KIRN, LUCAS E., KOCHELEK, JEFFREY T.
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/60—Pipe-line systems wet, i.e. containing extinguishing material even when not in use
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/04—Control of fire-fighting equipment with electrically-controlled release
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers

Definitions

  • the present application is directed to an automatic gas vent assembly and method that is useful in a fire protection sprinkler system and a fire protection sprinkler having such vent assembly. While illustrated for use with an inert gas source, it may be used for the removal of any trapped gas, such as air, from a sprinkler system, such as a wet pipe sprinkler system.
  • the present patent application is directed to an electrically operated automatic gas vent assembly and method used for removal of gas in a fire protection sprinkler system.
  • the technique disclosed herein may be used with an inert gas source for inerting the piping network of, or for the removal of, trapped air in a wet pipe sprinkler system.
  • An aspect of the present invention is directed to a gas vent and method that may be used with a fire protection sprinkler system including a water source and at least one sprinkler.
  • the at least one sprinkler is connected with the water source by a piping network.
  • the automatic gas vent is adapted to be connected with the piping network to discharge gas from said piping network.
  • the automatic gas vent includes an electrically operated valve that is electrically actuatable to discharge from said piping network and a sensor. The sensor senses the presence of liquid at a portion of the piping network and causes actuation of the valve to discharge gas from the piping network in the absence of liquid.
  • the sensor may cause withholding of actuation of the valve in the presence of a liquid.
  • the electrically operated valve may be closed in the absence of electrical actuation. In this manner, the automatic gas vent will be closed upon the loss of electrical power.
  • a pressure-operated valve may be provided in air communication with the automatic gas vent. In this manner, the automatic gas vent discharges gas only above a particular pressure across the pressure-operated valve.
  • the pressure-operated valve may be a pressure relief valve, a check valve, or the like. Operation of the pressure-operated valve may emit an audible indicator, or the like, when the automatic gas vent is discharging gas from the piping network.
  • a redundant gas vent may be provided to vent gas and retain liquid upon non-operation of the automatic electrically operated gas vent.
  • the redundant gas vent may be a mechanical gas vent, such as one in the form of a float-operated valve.
  • An electrical control may be provided that is responsive to the sensor and to electrically actuate the automatic electrically operated valve to discharge in response to the sensor sensing the presence of gas, but not electrically actuate the electrically operated valve in response to the sensor sensing the presence of liquid.
  • the automatic electrically operated valve may be configured to not discharge if the electrical control does not receive electrical power.
  • the control may include at least one indicator that is adapted to provide an indication of whether the valve is being electrically actuated.
  • the indicator may include a first indicator to indicate that said valve is closed and a second indicator to indicate that the valve is opened.
  • An inert gas source may be connected with the piping network.
  • the inert gas source may be a nitrogen generator, or other inert gas source.
  • FIG. 1 is a diagram of an electrically operated gas vent assembly, according to an embodiment of the invention.
  • FIG. 2 is an electrical schematic diagram of a control useful with the gas vent assembly in FIG. 1 .
  • a fire protection sprinkler system 10 includes a water source 11 , such as a source of city water, or the like, one or more sprinklers 13 , such as fusible sprinkler heads that are actuatable by heat, or the like, and a piping network shown at 12 that interconnects water source 11 with sprinkler heads 13 ( FIG. 1 ).
  • a source of inert gas 14 such as a nitrogen generator, nitrogen bottles, or the like, are connected with piping network 12 in order to displace oxygen with inert gas.
  • System 10 may generally be of the type disclosed in U.S. Patent Application Publication No.
  • WO 2010/030567 A1 entitled FIRE PROTECTION SYSTEMS HAVING REDUCED CORROSION, published on Mar. 18, 2010, and U.S. Patent Application Publication No. WO 2011/162988 A2, entitled HIGH NITROGEN AND OTHER INERT GAS ANTI-CORROSION PROTECTION IN WET PIPE FIRE PROTECTION SYSTEM, published on Dec. 29, 2011, the disclosures of which are hereby incorporated herein by reference.
  • an automatic gas vent assembly 16 is connected with piping network 12 to discharge gas from said piping network.
  • automatic gas vent assembly 16 is electrically operated.
  • Automatic gas vent assembly 16 is made up of an electrically operated valve, such as a solenoid-operated valve 18 that is electrically actuatable to discharge from piping network 12 and a sensor 20 .
  • Sensor 20 which is an electrical conductance probe, is configured to infer the presence of gas at a portion of piping network 12 (low conductance) or liquid, namely, water, at that portion of the piping network (high conductance) and to cause actuation of valve 18 in response to low conductance to discharge from piping network 12 in the presence of gas. Conversely, sensor 20 causes valve 18 to not be actuated in the presence of a liquid, namely, water or other conductive liquid, in response to the increase in electrical conductance caused by the probe coming into contact with the conductive liquid. This configuration results in an automatic vent that vents gas, but not liquid, from the portion of piping network 12 where gas vent assembly 16 is connected.
  • automatic electrically operated valve 18 is a normally closed solenoid-operated valve that is configured to close in the absence of electrical actuation. In this fashion, valve 18 will be closed should gas vent assembly 16 loose electrical power. While the loss of power will prevent vent assembly 16 from performing its venting function, the loss of electrical power will not allow water or other substance to be discharged through vent assembly 16 .
  • vent assembly 16 includes a pressure-operated valve 22 , such as a pressure relief valve 24 in air communication with automatic electrically operated valve 18 . Pressure relief valve 24 causes vent assembly 16 to discharge gas only above a particular pressure across said pressure-operated valve 22 .
  • pressure relief valve 24 is set to a nominal value of 40 pounds per square inch gauge (PSIG), but other values may be set either with factory settings or manually in the field.
  • PSIG pounds per square inch gauge
  • the function performed by pressure relief valve 24 is to create a 40 PSIG gas bubble inside of pipe network 12 . This prevents venting at pressures below 40 PSIG, which may be beneficial during nitrogen inerting of wet pipe fire protection sprinkler systems as disclosed in U.S. Patent Application Publication No. WO 2011/162988 A2, entitled HIGH NITROGEN AND OTHER INERT GAS ANTI-CORROSION PROTECTION IN WET PIPE FIRE PROTECTION SYSTEM, published on Dec. 29, 2011, the disclosure of which is hereby incorporated herein by reference.
  • This function could, alternatively, be provided by a ball check valve that allows venting of the piping network, but does not allow oxygen rich air to enter the piping network during drainage of the piping network.
  • a 40 PSIG air bubble inside of pipe network 12 will create an expansive decompression of gas during drainage of piping network 12 . This clears the pipes in the piping network thus removing water from around sensor 20 .
  • This 40 PSIG bubble holds much more gas volume than an atmospheric bubble and is more effective in clearing sensor 20 of water during the drainage operation.
  • pressure relief valve 24 prevents the ingress of high oxygen content air during draining of piping network 12 .
  • Automatic gas vent assembly 16 may optionally include a redundant gas vent module 26 that is adapted to vent gas and retain liquid upon non-operation of automatic gas vent 16 .
  • Redundant gas vent 26 in the illustrated embodiment, is made up of a mechanical gas vent.
  • gas vent 26 is a float-operated valve of the type made by Apco. Redundant gas vent 26 prevents any water leakage from piping network 12 should sensor 20 or electrically operated valve 18 fail.
  • Automatic gas vent assembly 16 includes an electrical control 28 that receives an input from sensor 20 and produces an output to actuate electrically operated valve 18 ( FIG. 2 ). While shown as operated from 110 volts alternating current (AC), other voltages and current type may be used. Electrical control 28 is responsive to sensor 20 to electrically actuate electrically operated valve 18 to discharge from pipe network 12 in response to sensor 20 sensing a low electrical conductance from the presence of gas. Likewise, electrical control 28 does not electrically actuate electrically operated valve 18 in response to sensor 20 by electrical cable 31 sensing a high electrical conductance from the presence of liquid. Electrical control 28 includes a probe control 30 that is connected with sensor 20 and operates a relay 34 depending upon the conductance of sensor 20 .
  • Relay 34 actuates the solenoid of electrically operated valve 18 , which is illustrated as a normally-closed solenoid actuated valve through electrical cable 33 .
  • Control 28 has visual indicators that provide an indication of whether said valve is being electrically actuated.
  • the visual indicator may be a “red” indicator 36 to indicate that valve 18 is open and/or second “green” indicator 38 to indicate that the valve is closed.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
US13/907,165 2012-05-31 2013-05-31 Electrically operated gas vent for fire protection sprinkler systems Abandoned US20130341055A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/907,165 US20130341055A1 (en) 2012-05-31 2013-05-31 Electrically operated gas vent for fire protection sprinkler systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261653733P 2012-05-31 2012-05-31
US13/907,165 US20130341055A1 (en) 2012-05-31 2013-05-31 Electrically operated gas vent for fire protection sprinkler systems

Publications (1)

Publication Number Publication Date
US20130341055A1 true US20130341055A1 (en) 2013-12-26

Family

ID=49673936

Family Applications (3)

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US13/907,165 Abandoned US20130341055A1 (en) 2012-05-31 2013-05-31 Electrically operated gas vent for fire protection sprinkler systems
US14/556,642 Active 2034-04-20 US9884216B2 (en) 2012-05-31 2014-12-01 Electrically operated gas vents for fire protection sprinkler systems and related methods
US15/864,394 Abandoned US20180126204A1 (en) 2012-05-31 2018-01-08 Electrically Operated Gas Vents For Fire Protection Sprinkler Systems And Related Methods

Family Applications After (2)

Application Number Title Priority Date Filing Date
US14/556,642 Active 2034-04-20 US9884216B2 (en) 2012-05-31 2014-12-01 Electrically operated gas vents for fire protection sprinkler systems and related methods
US15/864,394 Abandoned US20180126204A1 (en) 2012-05-31 2018-01-08 Electrically Operated Gas Vents For Fire Protection Sprinkler Systems And Related Methods

Country Status (10)

Country Link
US (3) US20130341055A1 (enExample)
EP (1) EP2854956B1 (enExample)
JP (1) JP2015517890A (enExample)
CN (1) CN104619381A (enExample)
AU (1) AU2013267123B2 (enExample)
CA (1) CA2874830C (enExample)
DK (1) DK2854956T3 (enExample)
ES (1) ES2953898T3 (enExample)
FI (1) FI2854956T3 (enExample)
WO (1) WO2013181596A1 (enExample)

Cited By (3)

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US20150265861A1 (en) * 2014-03-19 2015-09-24 The Viking Corporation Antifreeze Sprinkler System
US20200101336A1 (en) * 2018-10-01 2020-04-02 South-Tek Systems, LLC Wet Pipe Fire Protection Sprinkler System Dual Air Vent with Vent Failure Failsafe Feature
WO2021246596A1 (ko) * 2020-06-03 2021-12-09 이영숙 화재 진압 시스템

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US10486006B2 (en) 2015-03-18 2019-11-26 Engineered Corrosion Solutions, Llc Redundant vents with unitary valve bodies for water-based fire sprinkler systems
US9999792B2 (en) * 2016-09-01 2018-06-19 South-Tek Systems, LLC Wet pipe fire protection sprinkler system dual air vent with water retention and return
WO2019143888A1 (en) * 2018-01-18 2019-07-25 Engineered Corrosion Solutions, Llc Systems and methods for determining a volume of a pipe network
DE102018125861B3 (de) * 2018-10-18 2019-12-19 Job Lizenz Gmbh & Co. Kg Verfahren zur Überwachung der Qualität von Löschwasser in Sprinkleranlagen sowie Sprinklerkopf
WO2020180953A1 (en) * 2019-03-05 2020-09-10 Engineered Corrosion Solutions, Llc Liquid sensing valve for a fire sprinkler system

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US20150265861A1 (en) * 2014-03-19 2015-09-24 The Viking Corporation Antifreeze Sprinkler System
US10022575B2 (en) * 2014-03-19 2018-07-17 The Viking Corporation Antifreeze sprinkler system
US20200101336A1 (en) * 2018-10-01 2020-04-02 South-Tek Systems, LLC Wet Pipe Fire Protection Sprinkler System Dual Air Vent with Vent Failure Failsafe Feature
US11529534B2 (en) * 2018-10-01 2022-12-20 South-Tek Systems, LLC Wet pipe fire protection sprinkler system dual air vent with vent failure failsafe feature
WO2021246596A1 (ko) * 2020-06-03 2021-12-09 이영숙 화재 진압 시스템
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Publication number Publication date
AU2013267123B2 (en) 2017-06-01
ES2953898T3 (es) 2023-11-16
US20180126204A1 (en) 2018-05-10
CN104619381A (zh) 2015-05-13
CA2874830A1 (en) 2013-12-05
US9884216B2 (en) 2018-02-06
EP2854956B1 (en) 2023-06-07
DK2854956T3 (da) 2023-07-10
US20150083441A1 (en) 2015-03-26
JP2015517890A (ja) 2015-06-25
EP2854956A1 (en) 2015-04-08
CA2874830C (en) 2021-06-22
EP2854956A4 (en) 2016-10-12
AU2013267123A1 (en) 2014-12-18
WO2013181596A1 (en) 2013-12-05
FI2854956T3 (fi) 2023-09-04

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