FR2270534A1 - Liquid circuit expansion vessel safety device - has probe forming capacitor cutting in make-up pump at intermediate level - Google Patents

Liquid circuit expansion vessel safety device - has probe forming capacitor cutting in make-up pump at intermediate level

Info

Publication number
FR2270534A1
FR2270534A1 FR7416951A FR7416951A FR2270534A1 FR 2270534 A1 FR2270534 A1 FR 2270534A1 FR 7416951 A FR7416951 A FR 7416951A FR 7416951 A FR7416951 A FR 7416951A FR 2270534 A1 FR2270534 A1 FR 2270534A1
Authority
FR
France
Prior art keywords
pump
intermediate level
expansion vessel
make
safety device
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
FR7416951A
Other languages
French (fr)
Other versions
FR2270534B1 (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.)
BARNEOUD JEAN FR
Original Assignee
BARNEOUD JEAN FR
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 BARNEOUD JEAN FR filed Critical BARNEOUD JEAN FR
Priority to FR7416951A priority Critical patent/FR2270534A1/en
Publication of FR2270534A1 publication Critical patent/FR2270534A1/en
Application granted granted Critical
Publication of FR2270534B1 publication Critical patent/FR2270534B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/265—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors for discrete levels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

The equipment is for use with an expansion vessel in a heating, refrigeration or air-conditioning system. A probe extends downwards into the vessel and parallel to one of the sidewalls, so as to form with the wall a capacitor whose capacity varies with the liquid level and which is part of an electronic monitoring circuit. In addition to the high and low level alarm levels the probe (12) detects an intermediate level at which a relay cuts in a pump maintaining the level in the event of slight leakage. All these operating levels can be adjusted by components of the electronic circuit.
FR7416951A 1974-05-08 1974-05-08 Liquid circuit expansion vessel safety device - has probe forming capacitor cutting in make-up pump at intermediate level Granted FR2270534A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7416951A FR2270534A1 (en) 1974-05-08 1974-05-08 Liquid circuit expansion vessel safety device - has probe forming capacitor cutting in make-up pump at intermediate level

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7416951A FR2270534A1 (en) 1974-05-08 1974-05-08 Liquid circuit expansion vessel safety device - has probe forming capacitor cutting in make-up pump at intermediate level

Publications (2)

Publication Number Publication Date
FR2270534A1 true FR2270534A1 (en) 1975-12-05
FR2270534B1 FR2270534B1 (en) 1976-10-15

Family

ID=9138904

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7416951A Granted FR2270534A1 (en) 1974-05-08 1974-05-08 Liquid circuit expansion vessel safety device - has probe forming capacitor cutting in make-up pump at intermediate level

Country Status (1)

Country Link
FR (1) FR2270534A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421417A1 (en) * 1978-03-31 1979-10-26 Billard Gilles Pressure and volume regulator in hydraulic circuit - has sensors operating electro-valves controlling gas supply and liq. level
AU652622B2 (en) * 1991-04-15 1994-09-01 Val Bekman Automatic device to cut water and electrical supply to damaged hot water tanks
NL1035645C2 (en) * 2008-07-01 2010-01-05 Agpo Bv Burner controlling method for boiler in heating system, involves measuring pressure of transferred fluid, comparing measured pressure value with reference pressure value, and controlling burner of boiler based on results of comparison

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421417A1 (en) * 1978-03-31 1979-10-26 Billard Gilles Pressure and volume regulator in hydraulic circuit - has sensors operating electro-valves controlling gas supply and liq. level
AU652622B2 (en) * 1991-04-15 1994-09-01 Val Bekman Automatic device to cut water and electrical supply to damaged hot water tanks
NL1035645C2 (en) * 2008-07-01 2010-01-05 Agpo Bv Burner controlling method for boiler in heating system, involves measuring pressure of transferred fluid, comparing measured pressure value with reference pressure value, and controlling burner of boiler based on results of comparison

Also Published As

Publication number Publication date
FR2270534B1 (en) 1976-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse