DK134574B - Heat exchanger for heating external air. - Google Patents

Heat exchanger for heating external air.

Info

Publication number
DK134574B
DK134574B DK235565AA DK235565A DK134574B DK 134574 B DK134574 B DK 134574B DK 235565A A DK235565A A DK 235565AA DK 235565 A DK235565 A DK 235565A DK 134574 B DK134574 B DK 134574B
Authority
DK
Denmark
Prior art keywords
heat exchanger
tubes
outdoor air
air
thermostat
Prior art date
Application number
DK235565AA
Other languages
Danish (da)
Inventor
Lars-Owe Grudeborn
Original Assignee
Svenska Flaektfabriken Ab
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 Svenska Flaektfabriken Ab filed Critical Svenska Flaektfabriken Ab
Publication of DK134574B publication Critical patent/DK134574B/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/275—Control of temperature characterised by the use of electric means with sensing element expanding, contracting, or fusing in response to changes of temperature
    • 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
    • F24D19/00—Details
    • F24D19/008—Details related to central heating radiators
    • F24D19/0085—Fresh air entries for air entering the room to be heated by the radiator
    • 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
    • F24D19/00—Details
    • F24D19/0095—Devices for preventing damage by freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

1,102,277. Air heaters. SVENSKA FL€KTFABRIKEN A.B. 10 May, 1965 [11 May, 1964], No. 19646/65. Heading F4S. In a tubular heat exchanger in which outdoor air is heated in passing over hot water tubes 2 (arrows A-B), means for preventing freeze-up of the tubes under conditions of low outdoor air temperature comprise a thermostat 5, 6, 7 associated with manoeuvering means (not shown) for either shutting off the outdoor air stream from the heat exchanger, or for mixing room air with the air stream passing to the heat exchanger, the temperature sensing part 5 of the thermostat being located in an active part of the heat exchanger (e.g. the lowest tube 2) close to the water outlet 4. This temperature sensing part 5 is of a diameter such as to ensure that the volumetric flow in the tube portion surrounding said part is less than the flow in the other tubes 2 of the heat exchanger.
DK235565AA 1964-05-11 1965-05-10 Heat exchanger for heating external air. DK134574B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE5707/64A SE313064B (en) 1964-05-11 1964-05-11

Publications (1)

Publication Number Publication Date
DK134574B true DK134574B (en) 1976-11-29

Family

ID=20267042

Family Applications (1)

Application Number Title Priority Date Filing Date
DK235565AA DK134574B (en) 1964-05-11 1965-05-10 Heat exchanger for heating external air.

Country Status (7)

Country Link
US (1) US3354945A (en)
BE (1) BE663767A (en)
DK (1) DK134574B (en)
FI (1) FI48014B (en)
GB (1) GB1102277A (en)
NL (1) NL6505884A (en)
SE (1) SE313064B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109705A (en) * 1973-12-04 1978-08-29 Knut Bergdahl Heat exchange in ventilation installation
SE416347B (en) * 1973-12-04 1980-12-15 Knut Bergdahl SET AND DEVICE FOR DEFROSTING SWITCH EXCHANGE
GB2266950B (en) * 1992-04-24 1995-11-08 Ingersoll Rand Co Apparatus for and method of inhibiting formation of frozen condensate in a fluid system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1942559A (en) * 1932-10-19 1934-01-09 Lithman Leopold Radiator
US2190232A (en) * 1937-03-17 1940-02-13 Bireley S Inc Temperature control means

Also Published As

Publication number Publication date
FI48014B (en) 1974-01-31
SE313064B (en) 1969-08-04
GB1102277A (en) 1968-02-07
NL6505884A (en) 1965-11-12
US3354945A (en) 1967-11-28
BE663767A (en) 1965-09-01

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