Classifications

• • 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
  • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
  • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
  • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
  • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
  • F24H1/28—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
  • F24H1/287—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes with the fire tubes arranged in line with the combustion chamber
• • 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
  • F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
• • 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
  • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
  • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
  • F24H1/50—Water heaters for central heating incorporating heaters for domestic water incorporating domestic water tanks
• • 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
  • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
  • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

• the present invention relates to a boiler arrangement for heating a heat-transfer medium, such as water, in a heating system utilizing water-carried heat, said system comprising a vessel containing the heat-transfer medium; a combustion chamber in heat-conductive connection with the heat-transfer medium; smoke pipes which extend from the combustion chamber, down through said vessel, and discharge into a combustion-gas collecting chamber; the vessel containing the heat-transfer medium having arranged in its upper part an outlet which leads to the inlet line of the heating system, and beneath said outlet an inlet from the exhaust line of said system.
• an additional heating circuit which can be connected to the lower part of said boiler.
• the boiler connections of this additional heating circuit are located beneath the -boiler connections of the main heating circuit.
• the circuit is dimensioned so that ⁇ he temperature of the return water is below 50oC.
• the temperature of The return water at the lower part of the aforesaid vessel can be below 50°C.
• the invention provides a heating system in which the return water from the additional circuit is colder than the return water from the conventional part of the heating system.
• the additional heat which can be taken from the additional heating circuit is about 10 - 20% of the heat delivered by the boiler.
• the additional heating circuit may include a socalled aerotemper, i.e.
• the additional heating circuit may also comprise a closed system carrying water mixed with glycol, for heating the entrances to garages and passages.
• the boiler water is cooled indirectly by a loop or coil located beneath the return-water inlet from the conventional or main heating system.
• This closed cooling system may also be incorporated as a ⁇ hird cooling system in the heating system, in which case said closed cooling system is located beneath the return-water inlet from the additional heating circuit in which the boiler water flows. In this way extremely good layering of the temperature of the boiler water in the bottom part of the vessel is obtained.
• the illustrated exemplary embodiment of the boiler arrangement comprises a boiler casing 1 which encloses a vessel 2 containing heat-transfer medium, which in the illustrated example comprises preferably water.
• Smoke pipes 4 extend downwardly from a combustion chamber 3 to a smoke-gas collecting chamber 5.
• An exhaust gas connection 6 extends from the collecting chamber 5 to a chimney.
• An outlet 7 is arranged in the upper part of the vessel 2 .
• An inlet 8 from the exhaust line of the heating system is arranged in the lower part of said vessel.
• the exhaust line is coupled to radiators 12 and 13 through a shunt valve 9 and a pump 11.
• the total radiating surface of the radiators 12, 13 is relatively small, resulting in a relatively high temperature of the return water at the inlet 8.
• the temperature of the boiler water in the lower part of the vessel 2 is as low as possible, preferably beneath about 50oC, so that heat generated by the condensation of steam carried by the gases can also be utilized.
• the illustrated boiler is provided with an additional heating circuit 14 provided with a boiler outlet to said additional circuit located beneath the return-water inlet 8.
• the boiler water is circulated in the circuit 14 by means of a pump 16.
• the water circulating in the circuit 14 is returned to the vessel 2 through an inlet 17.
• the additional circuit 14 is so dimensioned that the water returned to the vessel 2 has a temperature below 50°C.
• the circuit 14 may comprise a closed system, in which case an additional loop or coil is arranged within the vessel 2, hetween the outlet 15 and the -inlet 17.
• the boiler water heats the water in the coil, which may contain, for example, water mixed with glycol for heating, for example, garage entrances or passages with the aid of the circuit 14, which in this case comprises a loop or coil buried beneath the garage entrance or passageway.
• the vessel 2 also includes a tap water reservoir 18, comprising a lower and an upper part, for heating tap water.
• the inlet 19 of the tap-water reservoir leading to the vessel 2 is connected to a fresh cold-water line and lies beneath the level of the inlet 17 from the additional heating circuit 14.
• the tap-water reservoir 18 contributes to further layering of the temperature in the bottom part of the vessel 2 into different temperature zones.
• the additional heating coil may also be used to pre-heat combustion air.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Steam Or Hot-Water Central Heating Systems (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20343895

Family Applications (1)

Country Status (2)

Families Citing this family (6)

Family Cites Families (3)

• 1982
  • 1982-05-21 EP EP82901641A patent/EP0079369A1/de not_active Withdrawn
  • 1982-05-21 WO PCT/SE1982/000186 patent/WO1982004115A1/en unknown

Non-Patent Citations (1)

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