FR2279448A1 - Humidifier maintaining constant hygrometric conditions - useful in dwellings and in industrial premises, metrological stations, spray booths - Google Patents

Humidifier maintaining constant hygrometric conditions - useful in dwellings and in industrial premises, metrological stations, spray booths

Info

Publication number
FR2279448A1
FR2279448A1 FR7426506A FR7426506A FR2279448A1 FR 2279448 A1 FR2279448 A1 FR 2279448A1 FR 7426506 A FR7426506 A FR 7426506A FR 7426506 A FR7426506 A FR 7426506A FR 2279448 A1 FR2279448 A1 FR 2279448A1
Authority
FR
France
Prior art keywords
water
amount
humidifier
contactor
voltage
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
FR7426506A
Other languages
French (fr)
Other versions
FR2279448B1 (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.)
Luquet SA H Et A
Original Assignee
Luquet SA H Et A
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 Luquet SA H Et A filed Critical Luquet SA H Et A
Priority to FR7426506A priority Critical patent/FR2279448A1/en
Publication of FR2279448A1 publication Critical patent/FR2279448A1/en
Application granted granted Critical
Publication of FR2279448B1 publication Critical patent/FR2279448B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/025—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using electrical heating means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D22/00—Control of humidity
    • G05D22/02—Control of humidity characterised by the use of electric means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Humidification (AREA)

Abstract

A humidifier of the type incorporating a vessel in which are electrodes and which has electrically operated valves for filling it with water and emptying it, incorporates a contactor in the electrode power supply circuit, an instrument to standardise the voltage in one phase and a regulator which uses the voltage to control the water feed valve. The contactor is activated by a hygrostat. When the hygrostat detects that the humidity is too low, it causes the contactor to close and a current to pass through the water, heating it. The regulator compares the amount of electrical energy absorbed in the vessel with a prefixed amount. If the amount absorbed is below the prefixed amount, the regulator opens the water supply valve letting in water, increasing the heat exchange surface and hence the amount of water evaporated into the atmosphere. The humidifier also incorporates a programmer which empties the vessel periodically, a relay which maintains the discharge valve open if the current has been accidentally cut off, two electrodes which prevent overfilling and a reducer in the water supply line to charge at a low rate. The controller can be on-off, threshold or proportional. The system gives a constant rate of vapour formation in spite of changes in the amount of salt deposited on the electrode plates, changes in the hardness of the water, ageing of the plates and falls in voltage.
FR7426506A 1974-07-25 1974-07-25 Humidifier maintaining constant hygrometric conditions - useful in dwellings and in industrial premises, metrological stations, spray booths Granted FR2279448A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7426506A FR2279448A1 (en) 1974-07-25 1974-07-25 Humidifier maintaining constant hygrometric conditions - useful in dwellings and in industrial premises, metrological stations, spray booths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7426506A FR2279448A1 (en) 1974-07-25 1974-07-25 Humidifier maintaining constant hygrometric conditions - useful in dwellings and in industrial premises, metrological stations, spray booths

Publications (2)

Publication Number Publication Date
FR2279448A1 true FR2279448A1 (en) 1976-02-20
FR2279448B1 FR2279448B1 (en) 1978-10-27

Family

ID=9141899

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7426506A Granted FR2279448A1 (en) 1974-07-25 1974-07-25 Humidifier maintaining constant hygrometric conditions - useful in dwellings and in industrial premises, metrological stations, spray booths

Country Status (1)

Country Link
FR (1) FR2279448A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146775A (en) * 1976-09-16 1979-03-27 Armstrong Machine Works Automatic control system for an electrode-type air humidifier
EP0069155A1 (en) * 1981-06-29 1983-01-12 Condair AG Method of operating a water-vapor generator
US4418269A (en) * 1980-03-24 1983-11-29 Eaton Williams Raymond H Multi-electrode boiler
US4705936A (en) * 1985-01-17 1987-11-10 Masco Corporation Electronically controlled electric steam humidifier
US4841122A (en) * 1984-03-02 1989-06-20 Atlas Air (Australia) Pty, Limited Humidifier having a heating chamber with a continuously open drain and flushing outlet
EP1143202A1 (en) * 2000-04-04 2001-10-10 Kent Bergmann Apparatus for a fullautomatic raise of the relative humidity in closed rooms

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146775A (en) * 1976-09-16 1979-03-27 Armstrong Machine Works Automatic control system for an electrode-type air humidifier
US4418269A (en) * 1980-03-24 1983-11-29 Eaton Williams Raymond H Multi-electrode boiler
EP0069155A1 (en) * 1981-06-29 1983-01-12 Condair AG Method of operating a water-vapor generator
US4841122A (en) * 1984-03-02 1989-06-20 Atlas Air (Australia) Pty, Limited Humidifier having a heating chamber with a continuously open drain and flushing outlet
US4705936A (en) * 1985-01-17 1987-11-10 Masco Corporation Electronically controlled electric steam humidifier
EP1143202A1 (en) * 2000-04-04 2001-10-10 Kent Bergmann Apparatus for a fullautomatic raise of the relative humidity in closed rooms

Also Published As

Publication number Publication date
FR2279448B1 (en) 1978-10-27

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Legal Events

Date Code Title Description
ST Notification of lapse