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GB2115122A - Heating boiler - Google Patents

Heating boiler Download PDF

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Publication number
GB2115122A
GB2115122A GB08235843A GB8235843A GB2115122A GB 2115122 A GB2115122 A GB 2115122A GB 08235843 A GB08235843 A GB 08235843A GB 8235843 A GB8235843 A GB 8235843A GB 2115122 A GB2115122 A GB 2115122A
Authority
GB
United Kingdom
Prior art keywords
flue
combustion chamber
pipes
heating boiler
housing
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Withdrawn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
GB08235843A
Inventor
Peter Krans
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.)
REMEHA FABRIEKEN BV
Original Assignee
REMEHA FABRIEKEN BV
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 REMEHA FABRIEKEN BV filed Critical REMEHA FABRIEKEN BV
Publication of GB2115122A publication Critical patent/GB2115122A/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Withdrawn legal-status Critical Current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
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities
    • 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]

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)
  • Geometry (AREA)
  • Air Supply (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

A boiler has a burner (8) and a plurality of plain heat exchanger pipes (10) disposed in a combustion chamber 3; and a flue (4) connected through a flue-gas passage 11 with said chamber 3; and extending labyrinth-wise to an outlet 18. As viewed in the downstream direction, ribbed pipes (16) are provided in a first portion of said flue and plain pipes (17) in a second portion. The housing (1) is provided with an adjustable air inlet (21) disposed close to the flue-gas outlet opening (18) therein. <IMAGE>

Description

SPECIFICATION Heating boiler This invention relatesto a heating boiler comprising a housing with a combustion chamber, a burner disposed in said combustion chamber, a heat exchanger in said combustion chamber, said heat exchanger comprising a plurality of plain pipes adapted to contain a fluid to be heated, said combustion chamber having an air supply opening, and the wall of said combustion chamber opposite the burner having a flue-gas passage therein, a flue connected to said flue-gas passage and extending labyrinth-wise through the housing, and heat exchanger pipes mounted in said flue.
A similar heating boiler is disclosed in British patent 1,167,002, and it is an object of the present invention to improve the efficiency of the prior boiler.
To this effect, according to the invention, the heating boiler is characterized in that, as viewed in the downstream direction, ribbed pipes are disposed in a first portion of said labyrinth flue, and plain pipes in a second portion. By virtue of these features, the heat of condensation can be utilized to an optimum extent, owing to which a maximum efficiency is obtained.
In a further elaboration of the invention, the housing has an adjustable air inlet opening close to the flue-gas outlet opening. The use of this adjustable air inlet opening permits, even at loads lower than full-load, keeping the total discharge of flue gases constant, as a consequence of which the efficiency is at least equal to that under full-load conditions.
In this arrangement, for example, the air inlet opening may be automatically adjusted by means of a servo motor to such a size, depending on the load, that the efficiency remains at least equal.
In order to minimize corrosion, the pipes may be provided with a coating effected by an anodizing treatment.
One embodiment of the invention will now be described, by way of example with reference to the accompanying drawings.
In said drawings, Figure 1 shows a longitudinal sectional view of a heating boiler according to the invention; and Figure 2 shows a cross-sectional view, taken on the line ll-ll of Figure 1.
Referring to the drawings, there is shown a heating boiler comprising a housing 1 provided at the bottom with diagrammatically shown supports or legs 2. Housing 1 is sub-divided into a furnace or combustion chamber 3 and a labyrinth-shaped flue 4, there being further provided a water heater 5.
Extending into the combustion chamber, a number of walls of which are provided with an insulating layer 6, via an opening 7, is a burner 8 (the burner bed to be produced by it is designated by 9).
Disposed within the combustion chamber are a plurality of plain heat exchanger pipes 10. Plain pipes can be arranged close to the burner bed in order to obtain a maximum heat transfer.
Via one or more passages 11 in wall 12, which is located opposite burner 8, the combustion chamber 3 is connected to the labyrinth-shaped flue 4. In the embodiment shown, the labyrinth-shaped flue 4 consists of three portions, namely, a first portion 13, a second portion 14 and a third portion 15. In portions 13 and 14, a plurality of ribbed heat exchanger pipes 16 are mounted, and in the third portion 15 a plurality of plain exchanger pipes 17 are arranged. This third portion is equipped with an outlet opening 18 to which an outlet 19 (shown diagrammatically) is connected. If desired, a fan may be mounted in outlet 19.
As further shown in the drawings, the third portion 15, through which the flue gas flows which becomes increasingly colder (relatively speaking), is provided with a condensate outlet 20.
Furthermore, an air inlet opening 21, adjustable by means of disc 22, is provided in this third portion close to the flue-gas outlet opening 18. This opening can be set when the boiler is installed. The setting depends, among other parameters, on the length of outlet 19, the diameter thereof, the number of bends therein, etc.
As further shown in the drawings, the water box 5, which by means of partitions is divided into three spaces, extends exclusively over the sidewalls of housing 1. The top of the heating boiler is provided with an insulating layer 23.
It will be clear that a large number of changes are possible without departing from the scope of the invention. Thus, for example, the insulating material may be such a homogeneous and strong material that this is self-supporting, and can be used as a structural part, permitting the unit to be assembled by means of screws, so that it may be disassembled for cleaning purposes.
1. A heating boiler comprising a housing with a combustion chamber, a burner disposed in said combustion chamber, a heat exchanger in said combustion chamber, said heat exchanger comprising a plurality of plain pipes adapted to contain a fluid to be heated, said combustion chamber having an air supply opening, and the wall of said combustion chamber opposite the burner having a flue-gas passage therein, a flue connected to said flue-gas passage, and extending labyrinth-wise through the housing, and heat exchanger pipes mounted in said flue, characterized in that, as viewed in the downstream direction, ribbed pipes are disposed in a first portion of said labyrinth flue, and plain pipes in a second portion.
2. A heating boiler according to claim 1,char- acterized in that the housing has an adjustable air inlet opening close to the flue-gas outlet opening.
3. A heating boiler according to claim 2, characterized in that the air inlet opening is automatically adjustable to such a size, depending on the load, that the efficiency remains at least equal.
4. A heating boiler according to claim 1,2 or 3, in which the pipes are provided with a protective layer, characterized in that said protective layer is a coating
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Heating boiler This invention relatesto a heating boiler comprising a housing with a combustion chamber, a burner disposed in said combustion chamber, a heat exchanger in said combustion chamber, said heat exchanger comprising a plurality of plain pipes adapted to contain a fluid to be heated, said combustion chamber having an air supply opening, and the wall of said combustion chamber opposite the burner having a flue-gas passage therein, a flue connected to said flue-gas passage and extending labyrinth-wise through the housing, and heat exchanger pipes mounted in said flue. A similar heating boiler is disclosed in British patent 1,167,002, and it is an object of the present invention to improve the efficiency of the prior boiler. To this effect, according to the invention, the heating boiler is characterized in that, as viewed in the downstream direction, ribbed pipes are disposed in a first portion of said labyrinth flue, and plain pipes in a second portion. By virtue of these features, the heat of condensation can be utilized to an optimum extent, owing to which a maximum efficiency is obtained. In a further elaboration of the invention, the housing has an adjustable air inlet opening close to the flue-gas outlet opening. The use of this adjustable air inlet opening permits, even at loads lower than full-load, keeping the total discharge of flue gases constant, as a consequence of which the efficiency is at least equal to that under full-load conditions. In this arrangement, for example, the air inlet opening may be automatically adjusted by means of a servo motor to such a size, depending on the load, that the efficiency remains at least equal. In order to minimize corrosion, the pipes may be provided with a coating effected by an anodizing treatment. One embodiment of the invention will now be described, by way of example with reference to the accompanying drawings. In said drawings, Figure 1 shows a longitudinal sectional view of a heating boiler according to the invention; and Figure 2 shows a cross-sectional view, taken on the line ll-ll of Figure 1. Referring to the drawings, there is shown a heating boiler comprising a housing 1 provided at the bottom with diagrammatically shown supports or legs 2. Housing 1 is sub-divided into a furnace or combustion chamber 3 and a labyrinth-shaped flue 4, there being further provided a water heater 5. Extending into the combustion chamber, a number of walls of which are provided with an insulating layer 6, via an opening 7, is a burner 8 (the burner bed to be produced by it is designated by 9). Disposed within the combustion chamber are a plurality of plain heat exchanger pipes 10. Plain pipes can be arranged close to the burner bed in order to obtain a maximum heat transfer. Via one or more passages 11 in wall 12, which is located opposite burner 8, the combustion chamber 3 is connected to the labyrinth-shaped flue 4. In the embodiment shown, the labyrinth-shaped flue 4 consists of three portions, namely, a first portion 13, a second portion 14 and a third portion 15. In portions 13 and 14, a plurality of ribbed heat exchanger pipes 16 are mounted, and in the third portion 15 a plurality of plain exchanger pipes 17 are arranged. This third portion is equipped with an outlet opening 18 to which an outlet 19 (shown diagrammatically) is connected. If desired, a fan may be mounted in outlet 19. As further shown in the drawings, the third portion 15, through which the flue gas flows which becomes increasingly colder (relatively speaking), is provided with a condensate outlet 20. Furthermore, an air inlet opening 21, adjustable by means of disc 22, is provided in this third portion close to the flue-gas outlet opening 18. This opening can be set when the boiler is installed. The setting depends, among other parameters, on the length of outlet 19, the diameter thereof, the number of bends therein, etc. As further shown in the drawings, the water box 5, which by means of partitions is divided into three spaces, extends exclusively over the sidewalls of housing 1. The top of the heating boiler is provided with an insulating layer 23. It will be clear that a large number of changes are possible without departing from the scope of the invention. Thus, for example, the insulating material may be such a homogeneous and strong material that this is self-supporting, and can be used as a structural part, permitting the unit to be assembled by means of screws, so that it may be disassembled for cleaning purposes. CLAIMS
1. A heating boiler comprising a housing with a combustion chamber, a burner disposed in said combustion chamber, a heat exchanger in said combustion chamber, said heat exchanger comprising a plurality of plain pipes adapted to contain a fluid to be heated, said combustion chamber having an air supply opening, and the wall of said combustion chamber opposite the burner having a flue-gas passage therein, a flue connected to said flue-gas passage, and extending labyrinth-wise through the housing, and heat exchanger pipes mounted in said flue, characterized in that, as viewed in the downstream direction, ribbed pipes are disposed in a first portion of said labyrinth flue, and plain pipes in a second portion.
2. A heating boiler according to claim 1,char- acterized in that the housing has an adjustable air inlet opening close to the flue-gas outlet opening.
3. A heating boiler according to claim 2, characterized in that the air inlet opening is automatically adjustable to such a size, depending on the load, that the efficiency remains at least equal.
4. A heating boiler according to claim 1,2 or 3, in which the pipes are provided with a protective layer, characterized in that said protective layer is a coating effected by an anodizing treatment.
5. A heating boiler substantially as hereinbefore described with reference to the accompanying drawings.
GB08235843A 1981-12-23 1982-12-16 Heating boiler Withdrawn GB2115122A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8105827A NL8105827A (en) 1981-12-23 1981-12-23 BOILER.

Publications (1)

Publication Number Publication Date
GB2115122A true GB2115122A (en) 1983-09-01

Family

ID=19838605

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08235843A Withdrawn GB2115122A (en) 1981-12-23 1982-12-16 Heating boiler

Country Status (4)

Country Link
DE (1) DE3246722A1 (en)
FR (1) FR2518715A1 (en)
GB (1) GB2115122A (en)
NL (1) NL8105827A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187829A (en) * 1986-03-15 1987-09-16 Myson Heating Limited Gas-fired heating appliance
GB2244799A (en) * 1990-05-30 1991-12-11 Welmark Limited Boiler unit
GB2403790A (en) * 2003-07-08 2005-01-12 Worcester Heat Systems Ltd Secondary heat exchanger for a boiler assembly
CN100451476C (en) * 2007-03-28 2009-01-14 刘毅 Small pier boiler

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554565B1 (en) * 1983-11-07 1988-12-09 Leblanc Sa E L M CONDENSING BOILER
FR2574167B1 (en) * 1984-11-30 1987-03-06 Seccacier CONDENSING RECOVERY BOILER
JPH02272207A (en) * 1988-09-10 1990-11-07 Kansai Electric Power Co Inc:The Water tube boiler and burning method therefor
EP0618410A3 (en) * 1993-03-02 1994-11-23 Interdomo Gmbh & Co Heat exchanger for a condensing boiler.
RU2476779C1 (en) * 2011-09-08 2013-02-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" (национальный исследовательский университет) (ФГБОУ ВПО "ЮУрГУ" (НИУ)) Water heater
NL2014432B1 (en) * 2015-03-10 2017-01-06 Atag Verwarming Nederland B V Heat exchanger and assembly of a heat exchanger and a burner.
CN106568192A (en) * 2016-10-17 2017-04-19 梁巨峰 Large heating environment-friendly and energy-saving boiler without air blower and induced draught fan
FR3137160A1 (en) * 2022-06-27 2023-12-29 Naval Group INSTALLATION FOR TREATING A GASEOUS HYDROGEN FLOW BY STAGED CATALITIC COMBUSTION

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187829A (en) * 1986-03-15 1987-09-16 Myson Heating Limited Gas-fired heating appliance
GB2187829B (en) * 1986-03-15 1989-12-20 Myson Heating Limited Gas-fired heating appliance
GB2244799A (en) * 1990-05-30 1991-12-11 Welmark Limited Boiler unit
GB2403790A (en) * 2003-07-08 2005-01-12 Worcester Heat Systems Ltd Secondary heat exchanger for a boiler assembly
CN100451476C (en) * 2007-03-28 2009-01-14 刘毅 Small pier boiler

Also Published As

Publication number Publication date
NL8105827A (en) 1983-07-18
DE3246722A1 (en) 1983-06-30
FR2518715A1 (en) 1983-06-24

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)