EP0080161A2 - Wärmetauscher - Google Patents

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Publication number
EP0080161A2
EP0080161A2 EP82110610A EP82110610A EP0080161A2 EP 0080161 A2 EP0080161 A2 EP 0080161A2 EP 82110610 A EP82110610 A EP 82110610A EP 82110610 A EP82110610 A EP 82110610A EP 0080161 A2 EP0080161 A2 EP 0080161A2
Authority
EP
European Patent Office
Prior art keywords
chamber
columnar body
wall
pipes
heat exchanger
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.)
Withdrawn
Application number
EP82110610A
Other languages
English (en)
French (fr)
Other versions
EP0080161A3 (de
Inventor
Kioteru Takayasu
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
Publication of EP0080161A2 publication Critical patent/EP0080161A2/de
Publication of EP0080161A3 publication Critical patent/EP0080161A3/de
Withdrawn legal-status Critical Current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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/16—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
    • F24H1/165—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/04—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being spirally coiled

Definitions

  • the present invention relates to a heat exchanger. More particularly, it relates to a heat exchanger of light weight having high heat exchange efficiency.
  • heat exchangers used in water heaters are made of copper or its alloy, which has good heat conductivity and provides high heat exchange efficiency. Since, however, copper and its alloy are apt to be corroded on combustion of urban gas or propane gas, the heat exchangers require to have thick walls. This makes the heat exchangers heavier.
  • the main object of the present invention provides a heat exchanger of light weight, which has good heat exchange efficiency.
  • the heat exchanger of the invention comprises a chamber having an inlet and an outlet, a columnar body positioned vertically in the center of the chamber and a plurality of pipes surrounding spirally the columnar body and supported by a plurality of supports provided on the outer wall of the columnar body and projected outwardly or on the inner wall of the chamber and projected inwardly, said pipes being arranged side by side at substantially a horizontal position between the outer wall of the columnar body and the inner wall of the chamber.
  • the characteristic feature of the heat exchanger of the invention resides in having a plurality of pipes for a fluid surrounding spirally a columnar body in the space between the inner wall of a chamber and the outer wall of the columnar body located vertically at the center of the chamber, said pipes being arranged side by side at substantially a horizontal position, to let flow a fluid spirally along the columnar body in contact with the outer surfaces of the pipes.
  • the heat exchanger of the invention comprises as the essential elements a chamber, a columnar body, supports and pipes.
  • the chamber and the columnar body may be made of same or different materials but are preferably made of a same material.
  • the materials may be any one insofar as they are resistant to heat and corrosion. Specific examples are iron, iron alloy, stainless steel, aluminum, aluminum alloy, copper, copper alloy, etc. Other anti-corrosive metals such as Ti, Zr, Ta, Mo and Nb, and their alloys are also usable.
  • the chamber is provided with an inlet and an outlet, which may be used respectively for introduction and discharge of a fluid for heating or to be heated.
  • the columnar body may be constructed, for instance, in a shape of cylindrical or square pipe optionally closed at both ends or of column or square pillar optionally provided with a hollow at the center. In general, the use of a hollow columnar body closed at both ends is preferred for making the weight of the heat exchanger light and saving the apparatus cost. When the columnar body is hollow and opened at both ends, any fluid for heating or to be heated may flow therein.
  • the supports and the pipes may be also made of same or different materials. Examples of the usable material are substantially the same as explained for the chamber and the columnar body.
  • the supports which may be shaped, for instance, in a bar-like or open-sided square form, are fixed to the outer wall of the columnar body or the inner wall of the chamber by any conventional means (e.g. welding). In view of their purpose to support the pipes, the number and position of the supports may be suitably chosen.
  • the pipes may be constructed in a single structure or in a double structure. When constructed in a double structure, the inside of each pipe may be made of a corrosion-resistant metal such as Ti, Zr, Ta, Mo and Nb and their alloys and the outside made of iron or its alloy.
  • the pipes are spirally wound around the columnar body and arranged side by side at substantially a horizontal position. They are closely contacted each other.. The larger number of spiral winding affords a better result and may be suitably selected taking heat exchange rate, strength of material, etc. into consideration.
  • the columnar body 1 is provided with supports 3,.3, Vietnamese positions by welding.
  • a pair of supports 3 and-3 form a space of open-sided square shape in section, and the space holds pipes 2, 2 and 2, which surround spirally the columnar body 1 and are arranged side by side at substantially a horizontal position.
  • the number and sectional shape of the pipes are optional.
  • the number and form of the supports are also optional.
  • the columnar body 1 is constructed in a hollow column closed at the upper and lower ends and placed vertically at the center of the chamber 5 on the bottom plate 7.
  • the pipes 2, 2 and 2 are held and arranged in a closely contacted relationship, and also the utmost inside pipe and the utmost outside pipe are respectively kept in close contact with the outer wall of the columnar body 1 and the inner wall of the chamber 5, whereby a spiral passage is formed between the outer wall of the columnar body 1 and the inner wall of the chamber 5.
  • the chamber 5 has an outer shell 6 to make a passage.
  • tap water (W) is supplied from a valve through the pipe (P) to the water feeding section 4. Then, the water flows into the pipes 2, 2 and 2, goes up spirally and reaches to the water discharge section 11.
  • combustible gas (G) is ignited at the gas burner 8 so that heating gas goes up spirally along the columnar body 1 as indicated by the arrow line and is discharged from the outlet 10.
  • air is introduced from the inlet 9, it can be pre-heated during the flowing through the passage between the chamber 5 and the outer shell 6 so that the heating gas is able to obtain a higher temperature.
  • Heat exchange is effected between the water flowing in the pipes and the heating gas flowing in the chamber. As the result, the heating gas is cooled to a lower temperature such as about 50°C and discharged from the outlet 10, while the water (H) is heated to a higher temperature such as about 80 to 90°C and taken out from the water discharge section 11.
  • Fig. 5 shows another example of a water heater incorporated with the heat exchanger of the invention wherein the supports 3, 3, Vietnamese are fixed not to the outer wall of the columnar body 1 but to the inner wall of the chamber 5. Further, the chamber 5 is not provided with an outer shell so that air is not pre-heated. Heating of water may be effected in the same manner as in the water heater shown in Fig. 3.
  • the heat exchanger of the invention is extremely large in the contact area between heating gas and the pipes, through which a fluid to be heated flows, so that the fluid can be efficiently heated.
  • the heat exchanger has a high heat exchange rate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP82110610A 1981-11-19 1982-11-18 Wärmetauscher Withdrawn EP0080161A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP18577681A JPS5886387A (ja) 1981-11-19 1981-11-19 熱交換器
JP185776/81 1981-11-19

Publications (2)

Publication Number Publication Date
EP0080161A2 true EP0080161A2 (de) 1983-06-01
EP0080161A3 EP0080161A3 (de) 1983-11-30

Family

ID=16176685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110610A Withdrawn EP0080161A3 (de) 1981-11-19 1982-11-18 Wärmetauscher

Country Status (3)

Country Link
EP (1) EP0080161A3 (de)
JP (1) JPS5886387A (de)
AU (1) AU9062782A (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001362A1 (fr) * 1986-08-21 1988-02-25 Emil Bader Echangeur de chaleur a contre-courant a faisceau helicoidal de tubes
DE3925795A1 (de) * 1989-08-04 1991-02-07 Walter Englmann Spiralrohr-waermetauscher
AT392839B (de) * 1988-10-21 1991-06-25 Vaillant Gmbh Durchlaufwaermetauscher
WO2001055661A1 (fr) * 2000-01-26 2001-08-02 Huai Yin Hui Huang Tai Yang Neng You Xian Gong Si Echangeur thermique a gaine en spirale assemblee
WO2011010280A1 (en) * 2009-07-20 2011-01-27 Yun Keung To Food steamer and steam heat energy collector
CN109405589A (zh) * 2018-11-30 2019-03-01 华南理工大学 一种双管程独立换热的球形换热器
EP3502214A1 (de) * 2017-12-22 2019-06-26 Axens Wärmetauscherspule für die hydrobehandlung oder hydroumwandlung
EP3502213A1 (de) * 2017-12-22 2019-06-26 Axens Wärmetauscherspule für die hydrobehandlung oder hydroumwandlung
DE10234238B4 (de) * 2001-07-25 2020-09-17 Vaillant Gmbh Wärmetauscher

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE422424A (de) *
US1893484A (en) * 1932-07-26 1933-01-10 Joseph S Belt Heat exchanger
FR2155770A1 (en) * 1971-10-04 1973-05-25 Ind Chauffage Spiral tube heat exchanger - with tubes contacting shell to define shell-side flow
JPS5169250A (en) * 1974-12-12 1976-06-15 Eiichi Uratani Rasenryuronoaru netsukookanki
JPS53900A (en) * 1976-06-25 1978-01-07 Hitachi Metals Ltd Method of manufacturing matrix magnet
FR2447528A1 (fr) * 1979-01-23 1980-08-22 Zundel Daniel Echangeur de chaleur a tuyaux
FR2482717A1 (fr) * 1980-05-14 1981-11-20 Psa Echangeur de temperature a tubes parcourus en parallele par un fluide primaire
FR2501832A1 (fr) * 1981-03-13 1982-09-17 Bonneville Simone Epurateur - echangeur thermique pour gaz de combustion

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001362A1 (fr) * 1986-08-21 1988-02-25 Emil Bader Echangeur de chaleur a contre-courant a faisceau helicoidal de tubes
AT392839B (de) * 1988-10-21 1991-06-25 Vaillant Gmbh Durchlaufwaermetauscher
DE3925795A1 (de) * 1989-08-04 1991-02-07 Walter Englmann Spiralrohr-waermetauscher
WO2001055661A1 (fr) * 2000-01-26 2001-08-02 Huai Yin Hui Huang Tai Yang Neng You Xian Gong Si Echangeur thermique a gaine en spirale assemblee
DE10234238B4 (de) * 2001-07-25 2020-09-17 Vaillant Gmbh Wärmetauscher
WO2011010280A1 (en) * 2009-07-20 2011-01-27 Yun Keung To Food steamer and steam heat energy collector
EP3502214A1 (de) * 2017-12-22 2019-06-26 Axens Wärmetauscherspule für die hydrobehandlung oder hydroumwandlung
EP3502213A1 (de) * 2017-12-22 2019-06-26 Axens Wärmetauscherspule für die hydrobehandlung oder hydroumwandlung
CN109405589A (zh) * 2018-11-30 2019-03-01 华南理工大学 一种双管程独立换热的球形换热器
CN109405589B (zh) * 2018-11-30 2023-10-27 华南理工大学 一种双管程独立换热的球形换热器

Also Published As

Publication number Publication date
EP0080161A3 (de) 1983-11-30
AU9062782A (en) 1983-06-16
JPS5886387A (ja) 1983-05-23

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19821118

AK Designated contracting states

Designated state(s): DE FR GB IT NL

PUAL Search report despatched

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18W Application withdrawn

Withdrawal date: 19831029