US20110073052A1 - Fire tube condensing boiler for generating hot water - Google Patents

Fire tube condensing boiler for generating hot water Download PDF

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Publication number
US20110073052A1
US20110073052A1 US12/995,392 US99539209A US2011073052A1 US 20110073052 A1 US20110073052 A1 US 20110073052A1 US 99539209 A US99539209 A US 99539209A US 2011073052 A1 US2011073052 A1 US 2011073052A1
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US
United States
Prior art keywords
water
space
enclosure
outlet connector
thermostatic device
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
US12/995,392
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English (en)
Inventor
Giovanni Jahier
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 US20110073052A1 publication Critical patent/US20110073052A1/en
Abandoned 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
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/0036—Dispositions against condensation of combustion products
    • 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
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • F24H1/28—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
    • F24H1/287—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes with the fire tubes arranged in line with the combustion chamber
    • 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
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/30—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle being built up from sections
    • F24H1/32—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle being built up from sections with vertical sections arranged side by side
    • 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
    • F24H1/34—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side
    • F24H1/36—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side the water chamber including one or more fire tubes
    • 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
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • 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]

Definitions

  • the invention relates to a fire tube condensing boiler for generating hot water.
  • boilers are provided with a structure that comprises an outer enclosure, which is adapted to delimit a portion of space designed to contain the water to be heated, which is introduced cold by way of an inlet connector that is located proximate to the base of the enclosure and exits hot by way of an outlet connector that is located proximate to the top of such enclosure.
  • the enclosure contains the furnace where combustion occurs, and tubes branch out from the furnace which are designed to convey the exhaust gases that convey heat to the water to be heated before being sent to the flue.
  • All the described elements are advantageously made of carbon steel, which, differently from what occurs for stainless steel, ensures easy joining of the several components by welding, but in this manner such elements are subject to the danger of corrosion by the condensation that, being a condensing boiler, is generated within the exhaust gases as a consequence of the condensation of the water vapor contained in such exhaust gases.
  • the aim of the present invention is to provide a fire tube condensing boiler in which the furnace is also protected against the risk of corrosion.
  • FIG. 1 is a longitudinal sectional view of the boiler, in which, as in the figures that follow, the exhaust gas conveyance tubes are not shown in cross-section;
  • FIG. 2 is a sectional view, taken along the line II-II of FIG. 1 ;
  • FIGS. 3 and 4 are respectively views of the details shown in FIG. 1 .
  • the reference numeral 1 generally designates a boiler comprising an outer enclosure 2 , which is adapted to delimit a portion of space 3 for containing the water to be heated, which is introduced cold by way of an inlet connector 3 a located proximate to the base of the enclosure and exits hot by way of an outlet connector 3 b that is located proximate to the top of the enclosure.
  • the reference numeral 4 designates a furnace where the combustion generated by a burner 5 occurs
  • the reference numeral 6 designates tubes designed to convey the exhaust gases in output from the furnace 4 to a chamber 7 for accessing a flue along the arrows of FIG. 1 .
  • thermostatic device which will be described in detail with reference to FIG. 4 and is comprised within a stub 8 that is interposed between the outlet connector 3 b and the portion of space 3 for containment of the water to be heated.
  • a thermostatic device is adapted to let the water flow out through the connector 3 b only when it reaches a preset value of the temperature that allows the accumulation, around the furnace 4 , of a mass of water that is hot enough to prevent condensation on the wall of said furnace of the water vapor contained in the exhaust gases, thus providing protection of the furnace against the risk of corrosion caused by the formation of condensation.
  • Circulation of water through the boiler is in any case ensured by the presence of an external bypass line 9 , which is connected at an end 9 a to the outlet connector 3 b downstream of the stub 8 that comprises the thermostatic device, and at an end 9 b to the portion of space 3 that contains the water to be heated in a position that is interposed between the inlet connector 3 a of the cold water and a diaphragm 10 that is located below the furnace 4 and is spaced from it and is provided with ports 10 a, 10 b that are visible in FIG. 3 , so as to appropriately graduate the passage of water through it.
  • an external bypass line 9 which is connected at an end 9 a to the outlet connector 3 b downstream of the stub 8 that comprises the thermostatic device, and at an end 9 b to the portion of space 3 that contains the water to be heated in a position that is interposed between the inlet connector 3 a of the cold water and a diaphragm 10 that is located below the furnace 4 and is spaced from it and is provided with ports
  • the thermostatic device comprised within the stub 8 is now described with reference to FIG. 4 .
  • Such device comprises a plate 11 , which is shown in the figure in the position for opening a port 8 a for the passage of water, which has been moved into such position, overcoming the action of a spring 12 , which abuts against a cross-member 8 b that is jointly connected to the stub 8 , by the action of a plurality of expanding heat-sensitive elements 13 , which are constituted by known wax-based sensors which comprise a cylinder 13 a that contains wax and a piston 13 b, which are arranged in series within a tube 14 that is jointly connected to the plate 11 and act in abutment against a block 15 that is fixed to a cross-member 16 that is jointly connected to the stub 8 .
  • thermostatic device can be provided in any manner, and the same applies for the diaphragm 10 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Details Of Fluid Heaters (AREA)
US12/995,392 2008-06-05 2009-04-30 Fire tube condensing boiler for generating hot water Abandoned US20110073052A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT000010A ITMN20080010A1 (it) 2008-06-05 2008-06-05 Caldaia a condensazione a tubi di fumo per la produzione di acqua calda
ITMN2008A000010 2008-06-05
PCT/EP2009/055309 WO2009146990A2 (fr) 2008-06-05 2009-04-30 Chaudière à condensation ignitubulaire pour générer de l'eau chaude

Publications (1)

Publication Number Publication Date
US20110073052A1 true US20110073052A1 (en) 2011-03-31

Family

ID=40301915

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/995,392 Abandoned US20110073052A1 (en) 2008-06-05 2009-04-30 Fire tube condensing boiler for generating hot water

Country Status (8)

Country Link
US (1) US20110073052A1 (fr)
EP (1) EP2307816B1 (fr)
AU (1) AU2009254070A1 (fr)
CA (1) CA2726439A1 (fr)
EA (1) EA019291B1 (fr)
ES (1) ES2541578T3 (fr)
IT (1) ITMN20080010A1 (fr)
WO (1) WO2009146990A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120180996A1 (en) * 2011-01-19 2012-07-19 Chadwick Energy Services Ltd. Jacketed firetube system for a process vessel
CN113648675A (zh) * 2021-10-19 2021-11-16 东营威联化学有限公司 一种二甲苯精馏塔的冷却装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010054725B4 (de) * 2010-12-16 2015-03-12 Interdomo Gmbh Zweikreisheizkessel mit integrierter Brennwerttechnik
EP2710306B1 (fr) * 2011-05-17 2017-07-05 Aic S.A. Chaudière
CN104456925A (zh) * 2014-11-06 2015-03-25 无锡鸿声铝业有限公司 热气炉
CN104374091A (zh) * 2014-11-06 2015-02-25 无锡鸿声铝业有限公司 智能热气炉

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5881681A (en) * 1997-01-23 1999-03-16 Aerco International, Inc. Water heating system
US6065682A (en) * 1998-03-31 2000-05-23 Behr Thermot- Tronik Gmbh & Co. Thermostatic valve
US20050274328A1 (en) * 2000-01-10 2005-12-15 Baese David C Water heater with continuously variable air and fuel input
US7819090B2 (en) * 2005-04-18 2010-10-26 Unical Ag S.P.A. Heat exchange apparatus, particularly fire tube condensing boiler

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATA15791A (de) * 1991-01-25 1993-09-15 Vaillant Gmbh Wasserheizer mit einem brenner
AT413596B (de) * 2000-11-08 2006-04-15 Rudolf Dirisamer Einrichtung eines abgaswärmetauschers für taupunktsicheren betrieb
JP5164323B2 (ja) * 2005-10-03 2013-03-21 カルソニックカンセイ株式会社 サーモスタット装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5881681A (en) * 1997-01-23 1999-03-16 Aerco International, Inc. Water heating system
US6065682A (en) * 1998-03-31 2000-05-23 Behr Thermot- Tronik Gmbh & Co. Thermostatic valve
US20050274328A1 (en) * 2000-01-10 2005-12-15 Baese David C Water heater with continuously variable air and fuel input
US7819090B2 (en) * 2005-04-18 2010-10-26 Unical Ag S.P.A. Heat exchange apparatus, particularly fire tube condensing boiler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120180996A1 (en) * 2011-01-19 2012-07-19 Chadwick Energy Services Ltd. Jacketed firetube system for a process vessel
CN113648675A (zh) * 2021-10-19 2021-11-16 东营威联化学有限公司 一种二甲苯精馏塔的冷却装置
CN113648675B (zh) * 2021-10-19 2022-01-11 东营威联化学有限公司 一种二甲苯精馏塔的冷却装置

Also Published As

Publication number Publication date
EA201071406A1 (ru) 2011-06-30
CA2726439A1 (fr) 2009-12-10
ITMN20080010A1 (it) 2009-12-06
EP2307816A2 (fr) 2011-04-13
WO2009146990A3 (fr) 2010-05-06
EA019291B1 (ru) 2014-02-28
WO2009146990A2 (fr) 2009-12-10
EP2307816B1 (fr) 2015-04-01
ES2541578T3 (es) 2015-07-21
AU2009254070A1 (en) 2009-12-10

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STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION