CA2328822A1 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
CA2328822A1
CA2328822A1 CA002328822A CA2328822A CA2328822A1 CA 2328822 A1 CA2328822 A1 CA 2328822A1 CA 002328822 A CA002328822 A CA 002328822A CA 2328822 A CA2328822 A CA 2328822A CA 2328822 A1 CA2328822 A1 CA 2328822A1
Authority
CA
Canada
Prior art keywords
drainwater
heat
water
convection
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.)
Granted
Application number
CA002328822A
Other languages
French (fr)
Other versions
CA2328822C (en
Inventor
Winston R. Mackelvie
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
Priority to CA002328822A priority Critical patent/CA2328822C/en
Publication of CA2328822A1 publication Critical patent/CA2328822A1/en
Application granted granted Critical
Publication of CA2328822C publication Critical patent/CA2328822C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • 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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0005—Domestic hot-water supply systems using recuperation of waste heat
    • 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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/16—Waste heat
    • F24D2200/20—Sewage water
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

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)

Abstract

A fluid-to-fluid heat exchanger for use where two fluid streams may be of indeterminate composition, temperature, and flow rate, and, where the two fluid streams may flow at different rates and at different times. Such conditions are found, for example, in the flow patterns of a building's hotwater, cold feed water for a water heater, and drainwater. As defined for heat recovery from drainwater, the present invention comprises a first, central, straight-through heat exchanger tube for cooling flowing drainwater, a second heat exchanger to heat cold water encircling and spaced from the first, and a non-pressurized reservoir between first and second heat exchangers permanently filled with water in thermal contact with first and second heat exchangers. Submerged in the reservoir water there is at least one insulated convection chamber, of small volume, enclosing first heat exchanger with a convection opening uppermost. Opening allows upward convection and therefore heat transfer when drainwater heats convection chamber water making it lighter. Convection and heat transfer ceases when drainwater cools convection chamber water making it heavier, blanketing drainwater heat exchanger in a small volume of cold water. This one-way heat transfer prevents heat loss from remaining reservoir water to cold drainwater. With convection chambers inverted to have convection opening bottommost, the device serves to make coldwater, for drinking, as cold as possible by transferring unwanted heat to colder drainwater. Used in series, heat recovery and fresh water cooling can both be accomplished. Units for horizontal and vertical installation are disclosed.
CA002328822A 2000-12-28 2000-12-28 Heat exchanger Expired - Fee Related CA2328822C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002328822A CA2328822C (en) 2000-12-28 2000-12-28 Heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002328822A CA2328822C (en) 2000-12-28 2000-12-28 Heat exchanger

Publications (2)

Publication Number Publication Date
CA2328822A1 true CA2328822A1 (en) 2002-06-28
CA2328822C CA2328822C (en) 2004-11-16

Family

ID=4167952

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002328822A Expired - Fee Related CA2328822C (en) 2000-12-28 2000-12-28 Heat exchanger

Country Status (1)

Country Link
CA (1) CA2328822C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009035271B3 (en) * 2009-07-30 2010-08-12 Uhrig Kanaltechnik Gmbh Heat exchanger device for attachment along longitudinal direction of drainage channel, has heat exchanger chamber formed between two wall sections and hydraulically connected with supply line by connection region
CN115854562A (en) * 2023-02-13 2023-03-28 山东中科蓝天科技有限公司 Corrosion-resistant heat-preservation energy-storage outdoor external pipe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009035271B3 (en) * 2009-07-30 2010-08-12 Uhrig Kanaltechnik Gmbh Heat exchanger device for attachment along longitudinal direction of drainage channel, has heat exchanger chamber formed between two wall sections and hydraulically connected with supply line by connection region
DE102009035271B9 (en) * 2009-07-30 2010-12-02 Uhrig Kanaltechnik Gmbh Heat exchanger device and use
CN115854562A (en) * 2023-02-13 2023-03-28 山东中科蓝天科技有限公司 Corrosion-resistant heat-preservation energy-storage outdoor external pipe
CN115854562B (en) * 2023-02-13 2023-06-23 山东中科蓝天科技有限公司 Corrosion-resistant heat-insulating energy-storage outdoor connecting pipe

Also Published As

Publication number Publication date
CA2328822C (en) 2004-11-16

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20121228