US3689738A - Vessel for meltable heat storage masses - Google Patents

Vessel for meltable heat storage masses Download PDF

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Publication number
US3689738A
US3689738A US54553A US3689738DA US3689738A US 3689738 A US3689738 A US 3689738A US 54553 A US54553 A US 54553A US 3689738D A US3689738D A US 3689738DA US 3689738 A US3689738 A US 3689738A
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United States
Prior art keywords
vessel
base plate
heater
storage
mass
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Expired - Lifetime
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US54553A
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English (en)
Inventor
Nikolaus Laing
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Individual
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Individual
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Publication of US3689738A publication Critical patent/US3689738A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/34—Elements and arrangements for heat storage or insulation
    • 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
    • F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
    • F24H7/002—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release using electrical energy supply

Definitions

  • a first electric heater is disposed adjacent the base plate for melting the mass.
  • a second electric heater of less heat output than the first heater extends vertically along a side wall of the vessel to form a connecting channel to relieve excesspressures in the region between the base plate and the bottom of the mass.
  • the vessel is provided with corrugated heat exchange ribs to dissipate the stored heat to the air.
  • the invention avoids these disadvantages by means of a device in which the crystalline portion of the storage mass has a flat surface which is pressed against the heater. Thereby the continuously produced melt, which is no longer capable of absorbing any latent heat and possesses only low "thermal conductivity, immediately flows away, so that direct thermal contact between the heater and the layer of the crystalline body is permanently maintained. Thereby high specific heat currents may be applied for melting the material, so that the heater itself becomes small and correspondingly cheap.
  • the invention provides, at least in the case of storage masses which contract during solidification, a connection between the region adjacent the heater and the. said cavity by producing a connecting channel through which the excess melt flows away without the formation of excess pressures, by means of a second heater.
  • this is accomplished by means of a tapered construction of the vessel or also by heating the vertical wall of the vessel for short periods, with the aim of melting a thin zone adjacent the walls of the vessel and thereby to detach the core of the store from the wall of the vessel.
  • Electric heaters as well as heaters with gaseous or liquid heat carriers are suitable for providing the heating effeet.
  • 'storage vessel can be made of heat sensitive materials
  • the walls of the vessel may LII also be so thin that they are deformable in a bellowslike manner, as soon as melting commences.
  • FIG. 1 shows a broken perspective view of a vessel constructed according to the invention
  • FIG. 2 is a section of the vessel of FIG. 1 showing the mass in the solidified form and also showing the relationship of the vessel with adjacent vessels;
  • FIG. 3 is a view similar to FIG. 2 showing a portion of the mass in solidified form and in melted form;
  • FIG. 4 is a plan view of a portion of FIG. 1.
  • FIG. 1 shows diagrammatically a storage body for a night storage heater, which comprises a tapered plastic vessel 1 having a top portion 18 where the vessel is closed at the bottom by a metallic base. Underneath the base a resistance heater 2 is provided which together with the base is connected to the vessel 1 by the bead 6.
  • the supply conductor 3 to the heater also comprises a resistance wire extending over the height of the container and is connected with the vessel 1 in heat conducting. manner.
  • Corrugated aluminum ribs 4 are connected with the walls of adjacent vessels in heat conducting manner and dissipate heat to air which is conducted through them.
  • FIG. 2 shows a vertical section through a vessel in accordance with FIG. 1 in its discharged condition.
  • the interior is charged with a storage mass 10. Since the storage mass, in its solid condition, occupies an appreciably smaller volume than in its liquid condition, a trough 13 is formed in the upper region of the solid body.
  • the heater 2 is switched on, the storage mass above the base 11 begins to melt. Since however the supply conductor 3 also develops heat and since it possesses a smaller heat capacity than the heater 2, a strip 12 of melt is produced along a boundary line of the solid body of storage mass 10, so that the melt 14 above the base 11 communicates with the upper region 15 of the vessel 1. Thereby an excess pressure may be created.
  • the melt 14 is compressed into a thin film, so that a very good heat conducting contact is formed between the heater 2 and the body of storage mass 10.
  • FIG. 3 shows the vessel in its partially charged-up condition.
  • the body of storage mass l0 has by now melted to a large extent and is surrounded on all sides by melt. Nevertheless the layer 14 remains extremely thin until the body of storage mass 10 has melted in its entirety.
  • the small amount of heat generated by the supply conductor 3 is transmitted to the molten storage mass 16 by convection.
  • At least those portions of the wall of the vessel not heated by the heaters may be made of a thin deformable plastics material such that the walls will move in a bellows-like manner when melting commences; this further assures that the solid portion of the storage mass may move vertically within the vessel.
  • said heater for melting the storage mass, a heat exchange arrangement for removing the heat of crystallization which is produced during solidification of the storage mass, and a storage mass having different densities in its solid and liquid states; characterized in that said first heater is disposed in a substantially horizontal plane adjacent said base plate, that the crystalline portion of the storage mass is urged against the base plate by gravity, and that the vertically extending walls define a tapered shape, the vessel being wider at its base, and having in addition a second heater which extends vertically from the first heater along a portion of the side walls to approximately the portion of the vessel opposite said base plate and where said first heater has a greater thermal output than the second heater.
  • a storage vessel according to claim 1 characterized in that at least the portions of the walls of the vessel which are not heated comprise a plastic material.
  • a storage vessel according to claim 2 characterized in that said base plate is metallic.
  • a storage vessel according to claim 2 characterized in that the portion of the'side walls that are of a plastic material are deformable whereby the storage mass when in a solid state can move vertically in the vessel.
  • a storage vessel according to claim 1 characterized in that said base plate is metallic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
US54553A 1969-07-31 1970-07-13 Vessel for meltable heat storage masses Expired - Lifetime US3689738A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT07381/69A AT295674B (de) 1969-07-31 1969-07-31 Niedertemperatur-speichergeraet

Publications (1)

Publication Number Publication Date
US3689738A true US3689738A (en) 1972-09-05

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ID=3595499

Family Applications (1)

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US54553A Expired - Lifetime US3689738A (en) 1969-07-31 1970-07-13 Vessel for meltable heat storage masses

Country Status (4)

Country Link
US (1) US3689738A (de)
AT (1) AT295674B (de)
CA (1) CA929059A (de)
GB (1) GB1313387A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095585A (en) * 1975-12-30 1978-06-20 Compagnie Pour L'etude Et La Realisation De Combustibles Atomiques Solar energy collector with on site storage
US4203489A (en) * 1977-05-31 1980-05-20 Swiadek Stanley F Thermal energy storage system
US4246466A (en) * 1979-08-20 1981-01-20 Hooker Chemicals & Plastics Corporation Electric heat storage apparatus
GB2160965A (en) * 1984-06-13 1986-01-02 Electricity Council Thermal storage device
US5975326A (en) * 1996-10-28 1999-11-02 Forschungszentrum Karlsruhe Gmbh Polygonal waste container for noxious materials with a double-lid closure structure
RU2157956C2 (ru) * 1996-10-04 2000-10-20 Мордовский государственный университет им. Н.П. Огарева Нагреватель с промежуточными теплоносителями
US20170303710A1 (en) * 2014-10-28 2017-10-26 Tempra Technology, Inc. Heat retaining dish assembly and method of heating same

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1146310A (en) * 1913-01-15 1915-07-13 Westinghouse Electric & Mfg Co Electrically-heated apparatus.
US2000455A (en) * 1931-04-27 1935-05-07 Chelva Heat Inc Electrical heating device
US2022812A (en) * 1932-10-25 1935-12-03 Stephen W Borden Air heater
US2178049A (en) * 1936-04-08 1939-10-31 Mouton Augustin Electrical heating apparatus of the storage type
FR1249776A (fr) * 1959-03-04 1960-12-30 Sprecher & Schuh Ag Dispositif thermique pour relais
US3083286A (en) * 1960-09-01 1963-03-26 Gen Electric Pliant surface heating unit
BE660030A (fr) * 1965-02-22 1965-08-23 Acec Accumulateur de chaleur pour poêles à accumulation
US3283125A (en) * 1964-10-21 1966-11-01 Charles D Snelling Electric baseboard heat storage means
US3356828A (en) * 1964-04-30 1967-12-05 Furness Raymond Francis Electrically heated heat storage apparatus
US3410985A (en) * 1966-01-10 1968-11-12 Penelope S P A Electrically heated hair curling apparatus

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1146310A (en) * 1913-01-15 1915-07-13 Westinghouse Electric & Mfg Co Electrically-heated apparatus.
US2000455A (en) * 1931-04-27 1935-05-07 Chelva Heat Inc Electrical heating device
US2022812A (en) * 1932-10-25 1935-12-03 Stephen W Borden Air heater
US2178049A (en) * 1936-04-08 1939-10-31 Mouton Augustin Electrical heating apparatus of the storage type
FR1249776A (fr) * 1959-03-04 1960-12-30 Sprecher & Schuh Ag Dispositif thermique pour relais
US3083286A (en) * 1960-09-01 1963-03-26 Gen Electric Pliant surface heating unit
US3356828A (en) * 1964-04-30 1967-12-05 Furness Raymond Francis Electrically heated heat storage apparatus
US3283125A (en) * 1964-10-21 1966-11-01 Charles D Snelling Electric baseboard heat storage means
BE660030A (fr) * 1965-02-22 1965-08-23 Acec Accumulateur de chaleur pour poêles à accumulation
US3410985A (en) * 1966-01-10 1968-11-12 Penelope S P A Electrically heated hair curling apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095585A (en) * 1975-12-30 1978-06-20 Compagnie Pour L'etude Et La Realisation De Combustibles Atomiques Solar energy collector with on site storage
US4203489A (en) * 1977-05-31 1980-05-20 Swiadek Stanley F Thermal energy storage system
US4246466A (en) * 1979-08-20 1981-01-20 Hooker Chemicals & Plastics Corporation Electric heat storage apparatus
GB2160965A (en) * 1984-06-13 1986-01-02 Electricity Council Thermal storage device
RU2157956C2 (ru) * 1996-10-04 2000-10-20 Мордовский государственный университет им. Н.П. Огарева Нагреватель с промежуточными теплоносителями
US5975326A (en) * 1996-10-28 1999-11-02 Forschungszentrum Karlsruhe Gmbh Polygonal waste container for noxious materials with a double-lid closure structure
US20170303710A1 (en) * 2014-10-28 2017-10-26 Tempra Technology, Inc. Heat retaining dish assembly and method of heating same
US11141011B2 (en) * 2014-10-28 2021-10-12 Tempra Technology, Inc. Heat retaining dish assembly and method of heating same

Also Published As

Publication number Publication date
DE2031028A1 (de) 1971-02-04
DE2031028B2 (de) 1976-02-05
AT295674B (de) 1972-01-10
GB1313387A (en) 1973-04-11
CA929059A (en) 1973-06-26

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