US3601097A - Boiler - Google Patents

Boiler Download PDF

Info

Publication number
US3601097A
US3601097A US868158A US3601097DA US3601097A US 3601097 A US3601097 A US 3601097A US 868158 A US868158 A US 868158A US 3601097D A US3601097D A US 3601097DA US 3601097 A US3601097 A US 3601097A
Authority
US
United States
Prior art keywords
housing
water
pump
heat exchanger
boiler
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.)
Expired - Lifetime
Application number
US868158A
Other languages
English (en)
Inventor
Hans Viessmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3601097A publication Critical patent/US3601097A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F24H1/48—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

Definitions

  • the invention relates to a boiler which is suitable both for heating and storing water for consumption and which comprises a water-carrying housing with forward and return flow connections, in which, in addition to a combustion chamber, there is a heat exchanger such as a hot water tank, a continuous flow heater or the like for developing and, if desired, storing water for consumption.
  • a heat exchanger such as a hot water tank, a continuous flow heater or the like for developing and, if desired, storing water for consumption.
  • the heat exchanger for heating water for consumption is generally arranged beside or above the combustion chamber.
  • the heat exchanger is either incorporated into the water chamber of the boiler or is mounted on the boiler as a separate unit and is linked with the boiler by means of hot water pipes, particularly if the heat exchanger is a hot water tankand not a continuous flow heater.
  • hot water storage tanks for purposes of simplicity in the following reference is only made to hot water storage tanks, although fundamentally the same arrangement can be used also for continuous flow heaters or for hot water storage tanks and continuous flow heaters together.
  • a circulating pump also called a charging pump.
  • This charging pump makes it possible to regulate the temperature of the water for consumption to be heated, i.e. the hot water.
  • a thermostat is incorporated into the hot water heater which switches on the pump on dropping below the desired value and disconnects said pump on reaching the desired value.
  • Regulation of the hot water temperature i.e. an upward limitation of the hot water temperature, can be important for various reasons, for example if the water is corrosive. If galvanized steel pipes are used as hot water pipesthe corrosive action of the water can be reduced by limiting the hot water temperature to, for example, 65 C. If the water is very hard, by limiting the water temperature the deposition of the hardening constituents in the water heater and the hot water pipes connected at the outlet side can be reduced.
  • Plastic pipes are indeed corrosion resistant with respect to drinking water but are sensitive to temperatures above 60 C. For plastic hot water pipes it is absolutely necessary to have an upper limit on the boiler temperature.
  • Boilers with separately mounted storage tank and charging pump are very expensive to manufacture.
  • the present invention is intended to solve the problem of providing a boiler of the type mentioned suitable also for heating and storing water for consumption, which with a simple construction and a minimum number of pipes in or on the boiler offers good possibilities for regulating the water for consumption to be heated.
  • a boiler comprising a housing intended to carry water and having forward and return flow connections wherein there is in addition to a combustion chamber a heat exchanger such as a hot water tank, continuous flow heater or the like for developing and, if desired, storing water for consumption, the interior of which housing has at least one heat exchanger arranged beneath the combustion chamber, the housing space above the combustion chamber being connected with the housing space below the heat exchanger by a duct which in use permits water to circulate and which is provided with a pump.
  • a heat exchanger such as a hot water tank, continuous flow heater or the like for developing and, if desired, storing water for consumption
  • the heat developed in the combustion chamber which is passed on to the heating medium rises.
  • the heating water at the bottomdoes not become heated, i.e. the heating water below the boiler zone, where heat is developed by oil or gas burners, is only heated at the level of the heat source.
  • the circulating pump serves for heating the tank for consumption water which via a pipe or duct in the boiler heating water draws off the hot water from above and forces it downwards into the hot water heater area.
  • a thermostat on or in the hot water heater switches off the pump.
  • combustion chambers this does not mean that the arrangement according to the invention can only be used therewith, because it can, in fact, be applied generally to all types of heat source, i.e. also gas burners, heat exchangers, or the like mounted in the water-carrying inner chamber of the boiler.
  • the regulation of the hot water temperature i.e. the upward limitation of the hot water temperature to 60 C. or 65 C. is important for three reasons: (1) to avoid or reduce the deposition of materials dissolved in the water; (2) to avoid or reduce corrosion in hot water pipes connected on the outlet side when these are made of iron materials; and (3) to prevent scalding when supplying hot water, for example in the bath or when washing hands.
  • the solution according to the invention is not only advantageous due to the possibilities for regulation but because, as shown, by downwardly directing the hot water flow the heat absorption can be increased by the increased flow rate of the heating water, whereby the relatively small AT in comparison with an arrangement above the combustion chamber can be compensated again, i.e. with the hot water heater arranged below the boiler there is approximately the same hot water capacity despite the low AT, because the pump and the special guiding of the heating water flow lead to a relatively high flow rate of the heater water and the heat transfer on the heating surfaces of the hot water heater is increased.
  • H6. 1 shows a longitudinal section through the boiler of one embodiment
  • FIG. 2 is a cross section through the boiler
  • FIG. 3 is a view similar to that of H6. 1 of another embodiment.
  • a boiler housing 1 In the upper part 2 of a boiler housing 1 are arranged the combustion chamber 3 with heating gas flues 4 and burners 5, while in the lower part 6 of the boiler is installed the consumption water heater or storage tank 7, which can be naturally have a shape other than that shown.
  • combustion chamber 3 and the consumption water heater 7 are located in the same water-carrying inner chamber of housing 1 and are not separated from one another by any partition.
  • a pipe 9 is provided in the water-carrying inner chamber 8 in order to bring hot heating water from the top to the bottom for heating the water for consumption tank 7 which pipe with the interposition of a pump 10, extends from the boiler upper part 2 into the boiler lower part 6 and preferably from an area above the combustion chamber 3 to an area at least in the lower half ofthe tank 7.
  • h pper portion 9 of pipe 9 is connected to the pump 10 on the suction side and the lower portion 9" on the pressure side, in the embodiment shown said pump is located outside the boiler housing 1 which at this point has a corresponding connection aperture.
  • the pump 10 with its suction aperture could be connected directly with the water-carrying inner chamber in the upper part 2 dispensing with a pipe portion 9' and conversely by its pressure side dispensing with a pipe portion 9" with the inner chamber in the lower part 6.
  • e solution described can naturally also be used in boilers wherein the storage tanks or continuous flow heaters are placed in separate housings, whereby however the water-carrying inner chambers of the boiler and storage tank or continuous flow heater would have to be connected in such a way that the hot water supply pipes would pass from the upper part of the boiler into the lower part of the water for consumption heater(s), while the discharge pipes would pass from the upper part of the water for consumption heater(s) into the lower part of boiler water jacket.
  • a charging pump is then in serted between the boiler and the water for consumption heater.
  • like reference numerals designate like parts in the embodiment of HO. 3.
  • a plurality of heat exchangers 11 are located within the housing in water consumption tank 7 below the combustion chamber.
  • a thermostat 12 is mounted in tank '7 and is connected to pump 10 to control the same.
  • a boiler comprising a housing adapted to contain water and having forward and return flow connections, a combustion chamber spatially located in the upper portion of said housing, a heat exchanger spatially located in the lower portion of said housing, said heat exchanger adapted to contain a quantity of water for consumption, a duct connecting the space above the combustion chamber with the space below the heat exchanger, and a pump connected to said duct for circulating the water within said housing whereby hot water from the upper portion is moved into contact with the heat exchanger in the lower portion.
  • a boiler according to claim 1 wherein the circulating duct is in the form of a pipe in the interior of the housing the upper opening of the pipe being above the combustion chamber and the lower opening being below the heat exchanger, the circulating pipe passing through the pump which has its suction side connected to the upper part of the pipe.

Landscapes

  • 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)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
US868158A 1968-10-24 1969-10-21 Boiler Expired - Lifetime US3601097A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681804845 DE1804845A1 (de) 1968-10-24 1968-10-24 Heizkessel

Publications (1)

Publication Number Publication Date
US3601097A true US3601097A (en) 1971-08-24

Family

ID=5711355

Family Applications (1)

Application Number Title Priority Date Filing Date
US868158A Expired - Lifetime US3601097A (en) 1968-10-24 1969-10-21 Boiler

Country Status (11)

Country Link
US (1) US3601097A (xx)
AT (1) AT293682B (xx)
BE (1) BE740367A (xx)
CH (1) CH499755A (xx)
DE (1) DE1804845A1 (xx)
FI (1) FI50277C (xx)
FR (1) FR2021457A1 (xx)
GB (1) GB1288257A (xx)
LU (1) LU59666A1 (xx)
NL (1) NL145945B (xx)
SE (1) SE357249B (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102309A (en) * 1975-11-22 1978-07-25 Hans Viessmann Boiler for liquid or gaseous fuels
US4169431A (en) * 1976-10-09 1979-10-02 Hans Viessmann Boiler

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007457A (en) * 1958-01-27 1961-11-07 Ospelt Gustav Heating boiler
US3366094A (en) * 1964-12-24 1968-01-30 Viessmann Hans Water heating apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007457A (en) * 1958-01-27 1961-11-07 Ospelt Gustav Heating boiler
US3366094A (en) * 1964-12-24 1968-01-30 Viessmann Hans Water heating apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102309A (en) * 1975-11-22 1978-07-25 Hans Viessmann Boiler for liquid or gaseous fuels
US4169431A (en) * 1976-10-09 1979-10-02 Hans Viessmann Boiler

Also Published As

Publication number Publication date
SE357249B (xx) 1973-06-18
GB1288257A (xx) 1972-09-06
FR2021457A1 (xx) 1970-07-24
DE1804845A1 (de) 1970-06-04
FI50277C (fi) 1976-01-12
CH499755A (de) 1970-11-30
BE740367A (xx) 1970-04-01
LU59666A1 (xx) 1970-01-12
FI50277B (xx) 1975-09-30
AT293682B (de) 1971-10-25
NL6915848A (xx) 1970-04-28
NL145945B (nl) 1975-05-15

Similar Documents

Publication Publication Date Title
US5228413A (en) Multiple boiler
US4469935A (en) Combined domestic use and space heating electric water heater
US4282421A (en) Dual compartment electric water heater
US3349755A (en) Recirculating flow water heater
US2269055A (en) Split heating system
US2373731A (en) Heating unit
US3351130A (en) Dual temperature water heating and supply system
US3601097A (en) Boiler
US2904014A (en) Heating and hot water boiler
US3078044A (en) Water heating installation
US759380A (en) Hot-water heater.
US2151516A (en) Radiation heater
US4361276A (en) Heating system having supplemental coil arrangement
US3625187A (en) Boiler
US2311484A (en) Water heater
US405504A (en) Heating apparatus
US817219A (en) Gas water-heater.
US1028555A (en) Combination-boiler for heating apparatus and hot-water supply.
US2626107A (en) Hot water heating system
US523738A (en) Stand-boiler for heat i kg water
US461867A (en) William g
US2808034A (en) Flow heater
US708373A (en) Combined hot-air and water or steam heater.
US425946A (en) Boiler for radiator systems
US289317A (en) Steam-generator