FR2257878A1 - Safety unit for gas flow heater - has hot gas probe connected to gas-controlling temp.-sensitive element via insulated mass - Google Patents

Safety unit for gas flow heater - has hot gas probe connected to gas-controlling temp.-sensitive element via insulated mass

Info

Publication number
FR2257878A1
FR2257878A1 FR7400763A FR7400763A FR2257878A1 FR 2257878 A1 FR2257878 A1 FR 2257878A1 FR 7400763 A FR7400763 A FR 7400763A FR 7400763 A FR7400763 A FR 7400763A FR 2257878 A1 FR2257878 A1 FR 2257878A1
Authority
FR
France
Prior art keywords
gas
sensitive element
safety unit
element via
flow heater
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.)
Granted
Application number
FR7400763A
Other languages
French (fr)
Other versions
FR2257878B1 (en
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.)
Saunier Duval SA
Original Assignee
Saunier Duval SA
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 Saunier Duval SA filed Critical Saunier Duval SA
Priority to FR7400763A priority Critical patent/FR2257878A1/en
Priority to US05/539,333 priority patent/US3971344A/en
Priority to DE2500529A priority patent/DE2500529C3/en
Priority to JP50005247A priority patent/JPS50117045A/ja
Publication of FR2257878A1 publication Critical patent/FR2257878A1/en
Application granted granted Critical
Publication of FR2257878B1 publication Critical patent/FR2257878B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/022—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/10—Measuring temperature stack temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements

Abstract

Safety unit for low power gas throughflow heater limits the period of continuous use. A probe is fitted in the throughflow region of the hot gas of the apparatus above the burner as a measuring feeler which is thermally connected to a thermally insulated mass outside this zone as a thermal capacity. The mass is connected thermally to a temperature sensitive element which interrupts or reduces the gas supply to the burner at above a preset temperature threshold. Preferably the temperature sensitive element is a thermo-contact in series with the thermoelement of the thermoelectric safety unit.
FR7400763A 1974-01-10 1974-01-10 Safety unit for gas flow heater - has hot gas probe connected to gas-controlling temp.-sensitive element via insulated mass Granted FR2257878A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7400763A FR2257878A1 (en) 1974-01-10 1974-01-10 Safety unit for gas flow heater - has hot gas probe connected to gas-controlling temp.-sensitive element via insulated mass
US05/539,333 US3971344A (en) 1974-01-10 1975-01-08 Safety device for instant water heater
DE2500529A DE2500529C3 (en) 1974-01-10 1975-01-08 Safety device for gas water heater
JP50005247A JPS50117045A (en) 1974-01-10 1975-01-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7400763A FR2257878A1 (en) 1974-01-10 1974-01-10 Safety unit for gas flow heater - has hot gas probe connected to gas-controlling temp.-sensitive element via insulated mass

Publications (2)

Publication Number Publication Date
FR2257878A1 true FR2257878A1 (en) 1975-08-08
FR2257878B1 FR2257878B1 (en) 1980-01-04

Family

ID=9133292

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7400763A Granted FR2257878A1 (en) 1974-01-10 1974-01-10 Safety unit for gas flow heater - has hot gas probe connected to gas-controlling temp.-sensitive element via insulated mass

Country Status (1)

Country Link
FR (1) FR2257878A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524853A1 (en) * 1991-07-22 1993-01-27 Frisquet S.A. Safety device for abnormal draught detection for gas fired boiler with natural draught flue

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524853A1 (en) * 1991-07-22 1993-01-27 Frisquet S.A. Safety device for abnormal draught detection for gas fired boiler with natural draught flue
FR2679627A1 (en) * 1991-07-22 1993-01-29 Frisquet Sa SAFETY DEVICE DETECTING A DRAFT ABNORMALITY FOR A GAS BOILER OPERATING ON A NATURAL DRAFT SMOKE DUCT.

Also Published As

Publication number Publication date
FR2257878B1 (en) 1980-01-04

Similar Documents

Publication Publication Date Title
JPS6478116A (en) Measuring instrument for water flow rate in plant stem
FR2138436B1 (en)
SE7711145L (en) HIGH FREQUENCY ENERGY APPLIANCE
GB1464746A (en) Heat meters
JPS5258578A (en) Temperature measuring device in roller fixing device
JPS5571919A (en) Measurement of temperature
FR2257878A1 (en) Safety unit for gas flow heater - has hot gas probe connected to gas-controlling temp.-sensitive element via insulated mass
FR2262265A2 (en) Safety unit for gas flow heater - has hot gas probe connected to gas-controlling temp.-sensitive element via insulated mass
FR2425614A1 (en) IMPROVEMENTS BROUGHT TO CALORIE GENERATORS USING GAS, ESPECIALLY TO WATER HEATERS
FR2343286A1 (en) Temp. control element for accurate direct heating equipment - uses gas filled capillary monitoring incoming air and element temperatures and operates supply switch
DE3066465D1 (en) Apparatus for measuring the thermal conductivity of an element
GB1354555A (en) Devices for sensing the temperature of a moving web
GB1531107A (en) Apparatus and method for measuring the self-heating rate of a chemical reaction
GB889816A (en) Improved heat meter
JPS5630638A (en) Adiabatic calorimeter
FR2415269A1 (en) Gas heater control device - has thermal probe and thermostat to close gas supply valve on excess temp. increase in combustion chamber
FR2283402A1 (en) Gas-fired water heater - has single vapour-tension thermostat monitoring overheating and gas escape into surroundings
SU377749A1 (en) THERMOSTAT
SU374532A1 (en) ALL-UNION n; .11ktno-tgkni «{g; • ^ y
SU369403A1 (en) HEAT GAS FLOW METER
SU436273A1 (en) METHOD FOR DETERMINING VLAGOPERENOS POTENTIAL
SU77794A1 (en) Thermobatter for automatic temperature controllers
FR2239176A5 (en) Two thermostat central heating regulator - reduces heating as ambient temperatures rise by lowering aiming temperature of boiler
SU546820A1 (en) Thermoanemometer
SU570799A1 (en) Device for measuring instant values of pulsating temperatures

Legal Events

Date Code Title Description
ST Notification of lapse