US20100258062A1 - Cold water pre-heater - Google Patents

Cold water pre-heater Download PDF

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Publication number
US20100258062A1
US20100258062A1 US12/423,789 US42378909A US2010258062A1 US 20100258062 A1 US20100258062 A1 US 20100258062A1 US 42378909 A US42378909 A US 42378909A US 2010258062 A1 US2010258062 A1 US 2010258062A1
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US
United States
Prior art keywords
water
hot water
shaped piping
insulating compartment
supply line
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.)
Abandoned
Application number
US12/423,789
Inventor
Cliff Berry
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US12/423,789 priority Critical patent/US20100258062A1/en
Publication of US20100258062A1 publication Critical patent/US20100258062A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/36—Water and air preheating systems
    • F22D1/38—Constructional features of water and air preheating systems
    • 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
    • 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • F28D7/082—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
    • 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
    • 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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]

Definitions

  • the present invention relates to a system and method to warm cold water prior to entry into a hot water heater.
  • Temperature control of a water supply to a residential home usually begins with a hot water heater installed at the home.
  • the hot water heater comprises a tank that heats and stores the warm water for use by the consumer.
  • Water supplied to the home travels from a water main into the home via a water supply pipe.
  • the water supplied to the home may be directly sent to a faucet or spicket for use by the consumer or the water supplied is transferred to the hot water heater to be pre-heated prior to distribution in the home.
  • Hot or warm water utilized at a home is usually distributed via a faucet or to an appliance.
  • the hot water heater warms the water to a desired temperature, stores the water within a tank that is usually part of the hot water heater.
  • the energy used to heat the water within the hot water heater is usually natural gas or electricity.
  • hot water used in the home is usually through the use of a shower, faucet or appliance such as a dishwasher or a washing machine.
  • Most hot water tanks are insulated to reduce standby heat loss. As the warm water within the tank is consumed additional water is supplied to the hot water heater and thus requires warming as supplied.
  • the water supplied to the hot water heater is cold or ambient temperature water and is directed from the water main as stated above. It would be advantageous to utilize a means to pre-warm or raise the temperature of the supplied cold water to the hot water heater in order to reduce the energy costs associated with heating water.
  • the present invention relates to a water warming system for warming a hot water heater supply line comprising: a s-shaped piping connected to a water supply line; an insulating compartment surrounding the s-shaped piping; a warm wastewater input into the insulating compartment and a wastewater output from the insulating compartment; and an output from the s-shaped piping connected to a hot water heater.
  • the water supply line inputs either ambient water or cool water into the s-shaped piping.
  • the warm wastewater generated within a home provides a source for the warm wastewater.
  • the present invention also includes a method of warming a hot water heater supply line comprising the steps of: connecting a s-shaped piping to a water supply line; surrounding the s-shaped piping with an insulating compartment; inputting warm wastewater into the insulating compartment; and connecting an output of the s-shaped piping to a hot water heater.
  • the method also includes the step of providing a continuous flow of warm wastewater into the insulating compartment.
  • FIG. 1 depicts a prospective view of the water warming system according to the present invention.
  • FIG. 2 provides a detailed view of the water supply line according to the present invention.
  • the present invention relates to a system which utilizes warm waste water to pre-heat a water supply line into a hot water heater.
  • the present invention utilizes warm waste water that normally exits or is drained from a shower or appliance within the home and the warm waste water travels through an insulating compartment which surrounds a water supply pipe that is directed to a hot water heater.
  • the warm wastewater therefore warms the cold water that is directed to the hot water heater prior to its entry into the hot water heater.
  • FIG. 1 provides the overview of the warming system according to the present invention.
  • An insulating compartment 20 is depicted in FIG. 1 provides a means of travel for the water supply directed to a hot water heater.
  • Cold water from a water main enters the insulating compartment 20 at a water entry point 10 a .
  • This water travels through an S-shaped piping 22 within the insulating compartment 20 and exits at a water exit point 10 b that is directed to the hot water heater.
  • Warm wastewater is directed into the insulating compartment at water entry point 12 b .
  • This warm wastewater circulates over the S-shaped piping 22 and therefore warms the cold water the travels through the piping 22 that is supplied from the water main.
  • the warm wastewater then exits the insulating compartment 20 a water exit point 12 a and is directed to the main waste water pipe for the home.
  • the S-shaped pipe 22 provides the means to slow the flow of the water supply to the water heater as it travels through the insulating compartment 20 .
  • the slower moving water through the S-shaped piping therefore increases in temperature due to the surrounding warm wastewater within the insulating compartment 20 .
  • FIG. 2 shows the prospective view of the water supplied via the insulating compartment 20 where the pre-warmed water that exits at water exit point 10 b is directed to a hot water heater 30 .
  • the hot water heater 30 further warms the water supplied via the insulating compartment 20 and then is directed throughout the household via the outlet pipe 32 . Since the water is pre-warmed through the insulating compartment 20 then the energy requirements for the hot water heater 30 are reduced.
  • the warm insulating compartment 20 connects through desired piping that collects the warm wastewater and directs it to the insulating compartment 20 .
  • the present invention provides a quick coupling attachment to the water supply for a hot water heater. The pre-heating of the water prior entering the hot water heater helps to reduce costs associated with maintaining the hot water heater and may increase the useful life of the hot water heater.

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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The present invention relates to a water warming system and method for warming a hot water heater supply line that includes: a s-shaped piping connected to a water supply line; an insulating compartment surrounding the s-shaped piping; a warm wastewater input into the insulating compartment and a wastewater output from the insulating compartment; and an output from the s-shaped piping connected to a hot water heater. The water supply line inputs either ambient water or cool water into the s-shaped piping. The warm wastewater generated within a home provides a source for the warm wastewater.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of Invention
  • The present invention relates to a system and method to warm cold water prior to entry into a hot water heater.
  • 2. Description of Related Art
  • Temperature control of a water supply to a residential home usually begins with a hot water heater installed at the home. The hot water heater comprises a tank that heats and stores the warm water for use by the consumer. Water supplied to the home travels from a water main into the home via a water supply pipe. The water supplied to the home may be directly sent to a faucet or spicket for use by the consumer or the water supplied is transferred to the hot water heater to be pre-heated prior to distribution in the home.
  • Hot or warm water utilized at a home is usually distributed via a faucet or to an appliance. The hot water heater warms the water to a desired temperature, stores the water within a tank that is usually part of the hot water heater. The energy used to heat the water within the hot water heater is usually natural gas or electricity.
  • As stated, hot water used in the home is usually through the use of a shower, faucet or appliance such as a dishwasher or a washing machine. Most hot water tanks are insulated to reduce standby heat loss. As the warm water within the tank is consumed additional water is supplied to the hot water heater and thus requires warming as supplied. The water supplied to the hot water heater is cold or ambient temperature water and is directed from the water main as stated above. It would be advantageous to utilize a means to pre-warm or raise the temperature of the supplied cold water to the hot water heater in order to reduce the energy costs associated with heating water.
    • SUMMARY OF THE INVENTION
  • The present invention relates to a water warming system for warming a hot water heater supply line comprising: a s-shaped piping connected to a water supply line; an insulating compartment surrounding the s-shaped piping; a warm wastewater input into the insulating compartment and a wastewater output from the insulating compartment; and an output from the s-shaped piping connected to a hot water heater. The water supply line inputs either ambient water or cool water into the s-shaped piping. The warm wastewater generated within a home provides a source for the warm wastewater.
  • The present invention also includes a method of warming a hot water heater supply line comprising the steps of: connecting a s-shaped piping to a water supply line; surrounding the s-shaped piping with an insulating compartment; inputting warm wastewater into the insulating compartment; and connecting an output of the s-shaped piping to a hot water heater. The method also includes the step of providing a continuous flow of warm wastewater into the insulating compartment.
    • DESCRIPTION OF DRAWINGS
  • FIG. 1 depicts a prospective view of the water warming system according to the present invention.
  • FIG. 2 provides a detailed view of the water supply line according to the present invention.
    •  DETAILED DESCRIPTION
  • The present invention relates to a system which utilizes warm waste water to pre-heat a water supply line into a hot water heater. The present invention utilizes warm waste water that normally exits or is drained from a shower or appliance within the home and the warm waste water travels through an insulating compartment which surrounds a water supply pipe that is directed to a hot water heater. The warm wastewater therefore warms the cold water that is directed to the hot water heater prior to its entry into the hot water heater.
  • FIG. 1 provides the overview of the warming system according to the present invention. An insulating compartment 20 is depicted in FIG. 1 provides a means of travel for the water supply directed to a hot water heater. Cold water from a water main enters the insulating compartment 20 at a water entry point 10 a. This water travels through an S-shaped piping 22 within the insulating compartment 20 and exits at a water exit point 10 b that is directed to the hot water heater. Warm wastewater is directed into the insulating compartment at water entry point 12 b. This warm wastewater circulates over the S-shaped piping 22 and therefore warms the cold water the travels through the piping 22 that is supplied from the water main. The warm wastewater then exits the insulating compartment 20 a water exit point 12 a and is directed to the main waste water pipe for the home.
  • The S-shaped pipe 22 provides the means to slow the flow of the water supply to the water heater as it travels through the insulating compartment 20. The slower moving water through the S-shaped piping therefore increases in temperature due to the surrounding warm wastewater within the insulating compartment 20.
  • FIG. 2 shows the prospective view of the water supplied via the insulating compartment 20 where the pre-warmed water that exits at water exit point 10 b is directed to a hot water heater 30. The hot water heater 30 further warms the water supplied via the insulating compartment 20 and then is directed throughout the household via the outlet pipe 32. Since the water is pre-warmed through the insulating compartment 20 then the energy requirements for the hot water heater 30 are reduced.
  • The warm insulating compartment 20 connects through desired piping that collects the warm wastewater and directs it to the insulating compartment 20. The present invention provides a quick coupling attachment to the water supply for a hot water heater. The pre-heating of the water prior entering the hot water heater helps to reduce costs associated with maintaining the hot water heater and may increase the useful life of the hot water heater.
  • The instant invention has been shown and described in what is considered to be the most practical and preferred embodiments. It is recognized, however, that departures may be made there from within the scope of the invention and that obvious modifications will occur to a person skilled in the art.

Claims (5)

1. A water warming system for warming a hot water heater supply line comprising:
a. a s-shaped piping connected to a water supply line;
b. an insulating compartment surrounding the s-shaped piping;
c. a warm wastewater input into the insulating compartment and a wastewater output from the insulating compartment; and
d. an output from the s-shaped piping connected to a hot water heater.
2. The water warming system according to claim 1, where the water supply line inputs at least one of ambient water and cool water into the s-shaped piping.
3. The water warming system according to claim 1, where wastewater collected from a home provides a source for the warm wastewater.
4. A method of warming a hot water heater supply line comprising the steps of:
a. connecting a s-shaped piping to a water supply line;
b. surrounding the s-shaped piping with an insulating compartment;
c. inputting warm wastewater into the insulating compartment; and
d. connecting an output of the s-shaped piping to a hot water heater.
5. The method according to claim 4 further comprising the step of:
a. providing a continuous flow of warm wastewater into the insulating compartment.
US12/423,789 2009-04-14 2009-04-14 Cold water pre-heater Abandoned US20100258062A1 (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20110465A1 (en) * 2011-03-24 2012-09-25 Rosella Rizzonelli HEAT EXCHANGER DEVICE.
CN112128966A (en) * 2020-09-08 2020-12-25 山东楚雨源环保科技有限公司 Multifunctional water boiler based on energy conservation and environmental protection

Citations (24)

* Cited by examiner, † Cited by third party
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US1721463A (en) * 1925-10-30 1929-07-16 Arthur B Mohr Water-heating attachment
US2031551A (en) * 1934-08-24 1936-02-18 Sorensen Albert Heater
US2639898A (en) * 1948-01-14 1953-05-26 Gustave T Reich Apparatus and method for mixing food products
US2735792A (en) * 1956-02-21 kroyer
US2994724A (en) * 1958-08-14 1961-08-01 Exxon Research Engineering Co Cyclodiene dimer vapor phase cracking method and furnace
US4157706A (en) * 1978-04-28 1979-06-12 Gaskill Emanuel P Water heater
US4201264A (en) * 1978-07-31 1980-05-06 Owens-Illinois, Inc. Solar water tank
US4256170A (en) * 1979-07-20 1981-03-17 Crump Robert F Heat exchanger
US4300247A (en) * 1980-05-07 1981-11-17 Berg Charles A Energy conservation in shower bathing
US4311189A (en) * 1979-02-14 1982-01-19 Commissariat A L'energie Atomique Heat exchanger
US4330035A (en) * 1979-09-04 1982-05-18 Ab Ctc Heat exchanger
US4341263A (en) * 1980-11-11 1982-07-27 Morteza Arbabian Waste water heat recovery apparatus
US4352391A (en) * 1980-07-08 1982-10-05 Rederiaktiebolaget Nordstjernan Method and apparatus for recovering heat in waste water
US4372372A (en) * 1981-01-26 1983-02-08 Raymond Hunter Shower bath economizer
US4502529A (en) * 1981-09-30 1985-03-05 Varney Paul R Heat recovery system
US4550771A (en) * 1980-11-11 1985-11-05 Morteza Arbabian Waste water heat recovery apparatus
US4619311A (en) * 1985-06-28 1986-10-28 Vasile Carmine F Equal volume, contraflow heat exchanger
US5736059A (en) * 1993-03-05 1998-04-07 Mackelvie; Winston R. Waste water heat recovery system
US5740857A (en) * 1995-01-17 1998-04-21 Thompson; John G. Heat Recovery and storage system
US6095240A (en) * 1998-07-01 2000-08-01 Vita International, Inc. Quadruple heat exchanger
US20020162650A1 (en) * 1999-01-25 2002-11-07 Mackelvie Winston Drainwater heat exchanger
US20040251010A1 (en) * 2001-10-01 2004-12-16 Doh Cha P Exchange apparatus
US20090218080A1 (en) * 2004-10-15 2009-09-03 Mcgregor Garth Kennedy Wastewater heat recovery device and method
US20100282442A1 (en) * 2008-01-07 2010-11-11 Oleg Sukuvoy structural sandwich plate panels and methods of making the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735792A (en) * 1956-02-21 kroyer
US1721463A (en) * 1925-10-30 1929-07-16 Arthur B Mohr Water-heating attachment
US2031551A (en) * 1934-08-24 1936-02-18 Sorensen Albert Heater
US2639898A (en) * 1948-01-14 1953-05-26 Gustave T Reich Apparatus and method for mixing food products
US2994724A (en) * 1958-08-14 1961-08-01 Exxon Research Engineering Co Cyclodiene dimer vapor phase cracking method and furnace
US4157706A (en) * 1978-04-28 1979-06-12 Gaskill Emanuel P Water heater
US4201264A (en) * 1978-07-31 1980-05-06 Owens-Illinois, Inc. Solar water tank
US4311189A (en) * 1979-02-14 1982-01-19 Commissariat A L'energie Atomique Heat exchanger
US4256170A (en) * 1979-07-20 1981-03-17 Crump Robert F Heat exchanger
US4330035A (en) * 1979-09-04 1982-05-18 Ab Ctc Heat exchanger
US4300247A (en) * 1980-05-07 1981-11-17 Berg Charles A Energy conservation in shower bathing
US4352391A (en) * 1980-07-08 1982-10-05 Rederiaktiebolaget Nordstjernan Method and apparatus for recovering heat in waste water
US4341263A (en) * 1980-11-11 1982-07-27 Morteza Arbabian Waste water heat recovery apparatus
US4550771A (en) * 1980-11-11 1985-11-05 Morteza Arbabian Waste water heat recovery apparatus
US4372372A (en) * 1981-01-26 1983-02-08 Raymond Hunter Shower bath economizer
US4502529A (en) * 1981-09-30 1985-03-05 Varney Paul R Heat recovery system
US4619311A (en) * 1985-06-28 1986-10-28 Vasile Carmine F Equal volume, contraflow heat exchanger
US5736059A (en) * 1993-03-05 1998-04-07 Mackelvie; Winston R. Waste water heat recovery system
US5740857A (en) * 1995-01-17 1998-04-21 Thompson; John G. Heat Recovery and storage system
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US20020162650A1 (en) * 1999-01-25 2002-11-07 Mackelvie Winston Drainwater heat exchanger
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US20100282442A1 (en) * 2008-01-07 2010-11-11 Oleg Sukuvoy structural sandwich plate panels and methods of making the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20110465A1 (en) * 2011-03-24 2012-09-25 Rosella Rizzonelli HEAT EXCHANGER DEVICE.
WO2012127452A1 (en) 2011-03-24 2012-09-27 Innova S.R.L. Heat exchanger
CN112128966A (en) * 2020-09-08 2020-12-25 山东楚雨源环保科技有限公司 Multifunctional water boiler based on energy conservation and environmental protection

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