US3824986A - Submersible pool heater - Google Patents

Submersible pool heater Download PDF

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Publication number
US3824986A
US3824986A US00218421A US21842172A US3824986A US 3824986 A US3824986 A US 3824986A US 00218421 A US00218421 A US 00218421A US 21842172 A US21842172 A US 21842172A US 3824986 A US3824986 A US 3824986A
Authority
US
United States
Prior art keywords
water
combustion chamber
pool
heat exchanger
exhaust
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
US00218421A
Other languages
English (en)
Inventor
R Ramey
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.)
Teledyne Inc
Original Assignee
Teledyne Inc
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
Priority to BE794001D priority Critical patent/BE794001A/xx
Application filed by Teledyne Inc filed Critical Teledyne Inc
Priority to US00218421A priority patent/US3824986A/en
Priority to CA159,680A priority patent/CA966746A/en
Priority to IT71215/72A priority patent/IT976295B/it
Priority to GB873A priority patent/GB1406531A/en
Priority to FR7301120A priority patent/FR2168342A1/fr
Priority to AU51061/73A priority patent/AU469918B2/en
Priority to DE2302030A priority patent/DE2302030A1/de
Priority to NO193/73A priority patent/NO135607C/no
Priority to NL7300707A priority patent/NL7300707A/xx
Application granted granted Critical
Publication of US3824986A publication Critical patent/US3824986A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
    • 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
    • F24H1/06—Portable or mobile, e.g. collapsible

Definitions

  • the pool heater comprises a vent assembly, which is adapted to be supported above the pool water level, and a duct assembly, which is adapted to be submersed below the pool water level.
  • the vent assembly comprises a vented outer housing having an exhaust stack located therein.
  • the top cover plate of the outer housing includes an aperture formed therein.
  • the exhaust stack terminates slightly below the aperture to enable cool inlet air to be drawn therethrough cooling the outer housing surrounding the stack.
  • the duct assembly forms a U-shaped configuration having an inlet 3 duct forming one of the legs.
  • a combustion chamber is formed at the bottom of the U-shaped configuration, while the other leg of the U-shaped configuration forms heat exchange conduits. Radiant plates are lofor providing a turbulent flow for the combustion exhaust.
  • An aquastat is positioned adjacent the upper end of the heat exchange conduits for sensing the temperature of the water in the vicinity thereof.
  • heaters preventsthe combustion from occurring efficiently and cleanly and the bulk size is objectionable.
  • Exhaust conduits are also connected to the combustion chamber for providing heat exchange surfaces for the water to be heated.
  • the combustion chamber also includes radiant plates located within the combustion chamber for emitting radiant energy to the interior thereof. These radiant plates function to feed back radiant energy into the combustion chamber for aiding the combustion process.
  • heat exchange conduits are formed into a zigzag configuration to create a turbulent flow for the exhaust in order to enhance the heat transfer characteristics.
  • Still another feature of the present invention is that a flue collection chamber is provided within the vented housing for exhausting the products of combustion.
  • the flue collection chamber exhaust port terminates that is temperature sensitive to control pressure actuated servo motors for turningthe heater on and off.
  • the aquastat is usually immersed directly in the pool to directly sense the temperature of the water. The shortcoming with such a device is that itoperates' in a 6.
  • the presentinvention obviates the above-mentioned shortcomings by providing a submersible pool heater that is especially adapted to operate in above-ground pools in a clean and efficient manner.
  • the invention comprises a, vented housing for admitting air into a combustion below an aperture formed in the top cover plate to enable cooling air taken in at the bottom of the housing to be drawn therethrough.
  • a further feature of the present invention is that an aquastat is provided'to be positioned adjacent the upper ends-of the two heat exchange conduitsl
  • the primary advantage of the present invention is that the radiant feed back provided by the radiant plates'within the combustion chamber causes more complete'and efficient combustion than heretofore possible in combustion chambers of comparable volumn.
  • Another importantadvantage of the present invention is that the zigzagging heat exchange ducts increases the turbulence of the heat flow to substantially enhance the heattransfer characteristics of the heat exchange ducts.
  • Still another important advantage of the present invention is that the novel vent assembly construction enables the exhaust stack and flue gases to be sufficiently vided while still using a conventional aquastat.
  • FIG. 1. is a perspective view of a submersible pool heater of the present invention
  • FIG. 2 is a fragmentary perspective view of the upper portion of the pool heater with the back panel of the vent assembly broken away to showthe interior thereof; a
  • FIG. 3 is a partial cross sectional view of the pool and heater taken substantially along lines 3-3 of FIG. 2;
  • FIG. 4 is a fragmentary perspective view of the combustion chamber with the side panel broken away to show the interior thereof.
  • FIGS. 1 and 2 illustrate a pool heater, generally indicated by arrow 10, comprising a vent assembly 20 and a submersible duct assembly 30.
  • the outer housing of the vent assembly 20 is formed by foursidewalls 11 forming a hood 12.
  • the submersible duct assembly 30 is formed in a substantially U- shaped configuration comprising three main subassemblies: an inlet conduit 40, a combustion chamber 50 and the heat exchange conduits 60.
  • the support assembly for the heater comprises a plurality of brackets 15 attached to a pair of angle irons 17 mounted on two rear corners formed in the rear sidewalls-:11. Each pair of brackets 15 extends outwardly and is secured to a two piece tube 19.
  • the tube 19 is adapted to be supportedly mounted on a pole (not shown) which is positionable adjacent theside" of an above-ground pool.
  • the desired height to which the vent assembly 20 is mounted is high enough to enable the apparatus 10' to extend over the pool in a manner that the duct assembly is substantially immersed in the water contained within the pool.
  • the top of the vent apparatus 20 is formed by a cover plate 21 having'a rectangular aperture 22 formed thereon.
  • the bottom of the vent assembly 20 is formed by a ported plate 23 having a first aperture 24 communicating with the interior of the intake conduit 40.
  • the bottom plate 23 also includes a 'pair of second apertures 25 communicating with the interior of the heat exchange conduits 60.
  • a dome-like stack 26 is adapted to be mounted on the plate 23 to extend over the second apertures 25.
  • the interior of the stack 27 forms an exhaust or flue collecting chamber while the area outside the stack 26 chamber 28.
  • the top of the stack 26 is capped with an aperture29 which extendsslightly below the aperture spaced from the outer edges of the ported plate 23 to form a peripheral'inlet 16.
  • This inlet 16 is provided to let atmospheric air enter into the inlet chamber 28.
  • the hood 12 is connected to the ported plate 23 with suitable brackets and'fasteners (not shown) spaced about the ported plate 23.
  • a trough 31 is supported within the stack 26 to extend directly beneath the aperture 29 across the entire width of the stack.
  • the extremities of the trough 31 extend through a pair of openings 32 formed in the sidewalls of the stack 26.
  • the inlet conduit extends to the bottom of the U-shaped duct assembly 30.
  • An opening 41 extends across the bottom of the inlet conduit 40 toform an intake passage for the combustion chamber 50.
  • the combustion chamber includes a bank of gas burner nozzles 51 mounted on a manifold 52 which, in turn, extends. across the width of the intake passage 41.
  • the manifold 52 is connected to suitable piping(not shown) for connection to a source of pressurized gas.
  • the gas burners 51 function to introduce jets of pressurized fuel into the combustion chamber 50.
  • a ceramic plate 53 is angularly mounted within the combustion chamber with respect to the direction of the burner jets.
  • the ceramic plate 53 is supported in a spaced relationship from the outer walls 54 forming the combustion chamber housing.
  • a pair of radiant plates 55 are, also mounted within the combustion chamber 50. As with the ceramic plate 53, the radiant plates 55 are spaced from the outer walls 54 for insulation purposes.
  • the upper portion of the combustionchamber 50 is formed by a cover plate 56 having a pairof apertures 57 adapted for connection to the pair of heat exchange conduits 60.
  • Each of the conduits 60 is formed by a pair of wall sections 61 having a plurality of cavities 63 formed on their interior sides, and forming a saw-toothed configuration.
  • the cavities 63 of the respective wall sections 61 are staggered or longitudinally off set.
  • This construction forms a pair of passageways having a'circuitous path leading from thecombustion chamber 50 and within the'louvered sidewalls '11 forms an inlet through the apertures 25 to the fluecollecting chamber 'A plurality of skirts 65 are attached to the bottom side-of the plate 23 and are adapted to extend about the periphery thereof.
  • an aquastat is adapted to be mounted adjacent the'upper ends of the heat exchange conduits 63.
  • air is drawn into the inlet chamber 28 via the inlet 16. Because of the convection currents, a portion of the air is then drawn down the inlet conduit 40 to enter the combustion chamber 50.
  • the air mixes with the pressurized gas, ejecting from the nozzles 51, to combust within the combustion chamber 50.
  • the combustion is directed by the nozzles 51 against the angularly supported ceramic plate 53.
  • the plate 53 functions to redirect the combustion upwardly and create a turbulence in the passing gases in the process. The turbug lence created serves to increase the combustion efficiency.
  • This generated heat then rises into the heat exchange conduits to heat the cavities 63 of the sidewalls 61. Because of the zigzag path provided by the offset cavities 63, the flow through the conduits 60 is quite turbulent. This turbulence functions to increase the heat transfer occurring. The heated sidewalls 61 then function to heat the water circulating past the heater 10.
  • the products of combustion then are gathered in the flue collection chamber 27 via the apertures 25.
  • the combustion products then pass out through the aperture 29 located at the top of the stack 26, and finally through the aperture 22 of the cover plate 21.
  • the stack 21 is located completely within the vent assembly 20. A portion of the cool air entering the in- 2 to more efficiently cool the opening 22 of the plate 21,
  • the advantage of having the top of the stack recessed is that it prevents unsuspecting adults or children from gases by being able to touch the hot metal of thestack 26.
  • The'skirts65 are provided toshield the portion of the heat exchange conduits 63 extending above the water line and to provide a relatively stationary portionof water.
  • the trough 31 is provided to trap water falling into the stack 26 and transport it out through the apertures provided than heretofore possible with such aquastats.
  • a submersible pool heater is provided that can operate more efficiently,- and safely than heretofore possible.
  • a submersible swimming pool heater for heating a quantity of water contained within a swimming pool to a predetermined water temperature comprising:
  • vent assembly adapted to be mounted above the water level of the pool, the vent assembly comprising an outer housing having sidewalls forming inlet air ports, an apertured exhaust, and an exhaust duct located within the outer housing;
  • inlet conduit means attached to the bottom side of the vent assembly and extending downward therefrom so that it is adapted to be submersed in the water contained in the pool;
  • combustion chamber connected to the inlet conduit means and operative submerged below the water g level of the pool;
  • At least one heat exchanger conduit connected to the combustion chamber and extending upward, relatively parallel and separate from the inlet conduit, to connect with the exhaust duct, the heat exchanger providing a' tortuous flow path that is adapted to increase the heat transfer over its entire surface to the surrounding swimming pool water;
  • temperature sensing means for controlling the generation of heat in the combustion chamber including a sensor adapted to be submerged in the water adjacent the connection of the heat exchanger and the exhaust duct, and
  • baffle means extending around the heat exchanger at least downward from the vent assembly below the temperature sensor and providing a relative stationary portion of water.
  • said means for introducing fuel comprises jet nozzle means for directing jets of pressurized fuel into the combustion chamber in the direction of the means for deflecting.
  • a swimming pool heater for heating a quantity of water contained within a swimming pool to a predetermined water temperature comprising:
  • an exhaust vent assembly having an outer housing with air ports, an apertured exhaust port and an exhaust duct connected to the outer housing;
  • At least one heat exchanger conduit connected at one end to the exhaust duct and extending downward from the exhaust vent assembly and adapted to have its entire outer surface surrounded by swimming pool water, the heat exchanger having a zigzag configuration to form a tortuous flow path for increasing heat transfer to the surrounding water,
  • temperature sensing means for controlling the generation of heatin the combustion chamber including a sensor adapted to be'submerged in the swimming pool water adjacent the connection of the heat exchanger and the exhaust duct, and
  • said temperature sensing means comprises a conventional aquastat.
  • the means for confining the water includes at least a side wall extending downward around the entire periphery of the vent assembly.
  • the means for providing a combustible mixture to the combustion chamber to produce heat includes jet nozzle means for directing jets of pressurized fuel into the combustion pass through said openings.

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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Incineration Of Waste (AREA)
  • Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
US00218421A 1972-01-17 1972-01-17 Submersible pool heater Expired - Lifetime US3824986A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
BE794001D BE794001A (fr) 1972-01-17 Appareils de chauffage submersibles pour piscines
US00218421A US3824986A (en) 1972-01-17 1972-01-17 Submersible pool heater
CA159,680A CA966746A (en) 1972-01-17 1972-12-21 Submersible pool heater
IT71215/72A IT976295B (it) 1972-01-17 1972-12-29 Riscaldatore ad immersione per pi scine
GB873A GB1406531A (en) 1972-01-17 1973-01-01 Submersible pool heater
FR7301120A FR2168342A1 (no) 1972-01-17 1973-01-12
AU51061/73A AU469918B2 (en) 1972-01-17 1973-01-12 Submersible fool heater
DE2302030A DE2302030A1 (de) 1972-01-17 1973-01-16 Eintauchbares schwimmbeckenheizgeraet
NO193/73A NO135607C (no) 1972-01-17 1973-01-16
NL7300707A NL7300707A (no) 1972-01-17 1973-01-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00218421A US3824986A (en) 1972-01-17 1972-01-17 Submersible pool heater

Publications (1)

Publication Number Publication Date
US3824986A true US3824986A (en) 1974-07-23

Family

ID=22815050

Family Applications (1)

Application Number Title Priority Date Filing Date
US00218421A Expired - Lifetime US3824986A (en) 1972-01-17 1972-01-17 Submersible pool heater

Country Status (10)

Country Link
US (1) US3824986A (no)
AU (1) AU469918B2 (no)
BE (1) BE794001A (no)
CA (1) CA966746A (no)
DE (1) DE2302030A1 (no)
FR (1) FR2168342A1 (no)
GB (1) GB1406531A (no)
IT (1) IT976295B (no)
NL (1) NL7300707A (no)
NO (1) NO135607C (no)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4893609A (en) * 1986-09-26 1990-01-16 Teledyne Industries, Inc. Wind-resistant outdoor heating appliance
US5158069A (en) * 1991-12-16 1992-10-27 Teledyne Industries, Inc. Wind-resistant heating appliance
US20020029774A1 (en) * 1999-03-26 2002-03-14 Kalember Robert S. Submersible, integral light and heater assembly
WO2016004496A1 (pt) * 2014-07-09 2016-01-14 Kesikowski Rui Assunção Aquecedor de imersão por combustão para líquidos em geral

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US463401A (en) * 1891-11-17 Muffle furnace
US2506120A (en) * 1947-06-21 1950-05-02 Annis R Turner Gas wall heater
US3274918A (en) * 1963-07-09 1966-09-27 Mathew H Stapleton Stock tank heater cover apparatus
US3289439A (en) * 1964-06-02 1966-12-06 Dalton Sheet Metal Co Inc Dye beck having flame fired heat exchanger
US3342023A (en) * 1964-06-26 1967-09-19 Kirk & Blum Mfg Co Upflow air outlet shroud

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US463401A (en) * 1891-11-17 Muffle furnace
US2506120A (en) * 1947-06-21 1950-05-02 Annis R Turner Gas wall heater
US3274918A (en) * 1963-07-09 1966-09-27 Mathew H Stapleton Stock tank heater cover apparatus
US3289439A (en) * 1964-06-02 1966-12-06 Dalton Sheet Metal Co Inc Dye beck having flame fired heat exchanger
US3342023A (en) * 1964-06-26 1967-09-19 Kirk & Blum Mfg Co Upflow air outlet shroud

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4893609A (en) * 1986-09-26 1990-01-16 Teledyne Industries, Inc. Wind-resistant outdoor heating appliance
US5158069A (en) * 1991-12-16 1992-10-27 Teledyne Industries, Inc. Wind-resistant heating appliance
US20020029774A1 (en) * 1999-03-26 2002-03-14 Kalember Robert S. Submersible, integral light and heater assembly
WO2016004496A1 (pt) * 2014-07-09 2016-01-14 Kesikowski Rui Assunção Aquecedor de imersão por combustão para líquidos em geral

Also Published As

Publication number Publication date
FR2168342A1 (no) 1973-08-31
AU5106173A (en) 1974-07-18
NO135607B (no) 1977-01-17
GB1406531A (en) 1975-09-17
DE2302030A1 (de) 1973-08-02
AU469918B2 (en) 1976-02-26
IT976295B (it) 1974-08-20
BE794001A (fr) 1973-05-02
NL7300707A (no) 1973-07-19
CA966746A (en) 1975-04-29
NO135607C (no) 1977-04-27

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