EP3306221A3 - Water heating system - Google Patents

Water heating system Download PDF

Info

Publication number
EP3306221A3
EP3306221A3 EP17194192.5A EP17194192A EP3306221A3 EP 3306221 A3 EP3306221 A3 EP 3306221A3 EP 17194192 A EP17194192 A EP 17194192A EP 3306221 A3 EP3306221 A3 EP 3306221A3
Authority
EP
European Patent Office
Prior art keywords
heat exchange
heating system
water heating
water
sectional area
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Withdrawn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
EP17194192.5A
Other languages
German (de)
French (fr)
Other versions
EP3306221A2 (en
Inventor
Masashi Maeno
Masatomo KOSAKA
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.)
Mitsubishi Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries Thermal Systems Ltd
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 Mitsubishi Heavy Industries Thermal Systems Ltd filed Critical Mitsubishi Heavy Industries Thermal Systems Ltd
Publication of EP3306221A2 publication Critical patent/EP3306221A2/en
Publication of EP3306221A3 publication Critical patent/EP3306221A3/en
Withdrawn legal-status Critical Current

Links

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
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • F24H4/04—Storage heaters
    • 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
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0015—Guiding means in water channels
    • 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
    • F24D19/00—Details
    • F24D19/0092—Devices for preventing or removing corrosion, slime or scale

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)
  • Details Of Fluid Heaters (AREA)

Abstract

The present invention aims to provide a water heating system capable of reducing the frequency of maintenance of a heat exchanger required because of scale.
The present invention provides a heat exchanger (23) including a plurality of heat exchange units (31, 32) which are separated from each other in a predetermined direction and are connected to each other in series. The total cross-sectional area of a water flow channel of the first heat exchange unit (31) cut along a plane orthogonal to a direction in which water flows is smaller than a total cross-sectional area of a water flow channel of the second heat exchange unit (32) cut along a plane orthogonal to the direction in which water flows.
EP17194192.5A 2016-10-05 2017-09-29 Water heating system Withdrawn EP3306221A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016197489A JP2018059670A (en) 2016-10-05 2016-10-05 Water heating system

Publications (2)

Publication Number Publication Date
EP3306221A2 EP3306221A2 (en) 2018-04-11
EP3306221A3 true EP3306221A3 (en) 2018-07-11

Family

ID=60019715

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17194192.5A Withdrawn EP3306221A3 (en) 2016-10-05 2017-09-29 Water heating system

Country Status (2)

Country Link
EP (1) EP3306221A3 (en)
JP (1) JP2018059670A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6919696B2 (en) * 2019-11-05 2021-08-18 ダイキン工業株式会社 Hot water heater

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011137622A (en) * 2010-01-04 2011-07-14 Hitachi Appliances Inc Heat pump water heater
JP2011163631A (en) * 2010-02-09 2011-08-25 Hitachi Appliances Inc Heat pump water heater
EP2824398A1 (en) * 2013-07-11 2015-01-14 Mitsubishi Heavy Industries, Ltd. Heat pump hot water supply system
US20150226453A1 (en) * 2012-09-25 2015-08-13 Mitsubishi Electric Corporation Heat pump water heater

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3724475B2 (en) 2002-10-28 2005-12-07 松下電器産業株式会社 Heat pump water heater

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011137622A (en) * 2010-01-04 2011-07-14 Hitachi Appliances Inc Heat pump water heater
JP2011163631A (en) * 2010-02-09 2011-08-25 Hitachi Appliances Inc Heat pump water heater
US20150226453A1 (en) * 2012-09-25 2015-08-13 Mitsubishi Electric Corporation Heat pump water heater
EP2824398A1 (en) * 2013-07-11 2015-01-14 Mitsubishi Heavy Industries, Ltd. Heat pump hot water supply system

Also Published As

Publication number Publication date
EP3306221A2 (en) 2018-04-11
JP2018059670A (en) 2018-04-12

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