EP0092063B1 - Dampferzeuger - Google Patents

Dampferzeuger Download PDF

Info

Publication number
EP0092063B1
EP0092063B1 EP83102879A EP83102879A EP0092063B1 EP 0092063 B1 EP0092063 B1 EP 0092063B1 EP 83102879 A EP83102879 A EP 83102879A EP 83102879 A EP83102879 A EP 83102879A EP 0092063 B1 EP0092063 B1 EP 0092063B1
Authority
EP
European Patent Office
Prior art keywords
annular gap
housing
combustion air
steam generator
burner
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.)
Expired
Application number
EP83102879A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0092063A3 (en
EP0092063A2 (de
Inventor
Hans-Joachim Schröder
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.)
Schroder Kg Warmetechnik
Original Assignee
Schroder Kg Warmetechnik
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 Schroder Kg Warmetechnik filed Critical Schroder Kg Warmetechnik
Priority to AT83102879T priority Critical patent/ATE35043T1/de
Publication of EP0092063A2 publication Critical patent/EP0092063A2/de
Publication of EP0092063A3 publication Critical patent/EP0092063A3/de
Application granted granted Critical
Publication of EP0092063B1 publication Critical patent/EP0092063B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
    • F22B21/22—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight
    • F22B21/26—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight bent helically, i.e. coiled

Definitions

  • the invention relates to a steam generator with a flow tube wound spirally to a closed standing jacket, which has a water inlet at its lower end and a steam outlet at its upper end and delimits a cylindrical cavity into which at least one oil or gas burner is directed, the cavity surrounding the casing with ground clearance and leaving a first annular gap is accommodated in an inner housing connected at its upper end to an exhaust gas outlet line, which is also accommodated with a ground clearance and leaving a second annular gap in another housing, at the lower end of which a blower on the pressure side is connected to convey combustion air to the oil or gas burner through the second annular gap and the space between the bottoms of the inner housing and the further housing.
  • the known steam generators with the structure mentioned are designed as fully automatic machines in which, after a water pump has been switched on and the flow tube has been filled, and after a predetermined water pressure has been reached, the burner is put into operation with simultaneous supply of combustion air, so that steam generation begins.
  • pressure regulators, pressure control valves, pressure limiters, start-up pressure regulators and temperature limiters are used, by means of which the combustion air supply is regulated automatically in such a way that the steam generation, the steam pressure and the temperature are kept constant at the set values.
  • preheated water at temperatures of approximately 90-100 ° C. is fed into the flow pipe.
  • a fan is arranged at the lower end of the steam generator, which draws in the combustion air from the environment, which then flows through the combustion air flowing up through the second annular gap through the wall of the inner housing the smoke or combustion gases is preheated, which flows in the first annular gap between the inner housing and the jacket formed by the spirally wound flow tube up to the exhaust gas outlet line.
  • Another disadvantage of this air duct is that the outer shell of the boiler has a relatively high temperature, which means that additional and expensive insulation measures are required in order to keep the heating of the room or the ambient air from the steam generator low. Such additional heating is particularly disadvantageous and strengthening if, for example, in a laundry or the like. several steam generators are in operation at the same time.
  • Atmospheric burners are less powerful than forced draft burners, and atmospheric burners of this type are generally also unsuitable for operation with oil. If, in this known steam generator, a suction fan is arranged on the exhaust gas side, such a fan is exposed to higher thermal and chemical stresses than a fan on the combustion air side.
  • the invention has for its object, on the one hand, to provide measures to improve the efficiency of the burner in order to expose the existing thermal energy without additional energy expenditure to a further increase in the temperature of the combustion air supplied to the burner, wherein it should additionally be ensured that complex insulation measures in the area of outer boiler shell are unnecessary. It should also be ensured that the fresh combustion air sucked in from the surroundings already has a relatively high heat content and should be contaminated as little as possible with dust or dirt particles.
  • the steam generator according to the invention is characterized in that the further housing with floor and ceiling spacing and with the release of a third annular gap is accommodated in an outer housing which is provided on its upper side with a suction opening for combustion air and in the region of its lower end the suction side of the fan is connected.
  • the advantage of the steam generator according to the invention is essentially that there is an upstream fan burner with which the combustion air is supplied to the burner under pressure.
  • a fan upstream of the burner is also subjected to less thermal and chemical stress than a suction fan arranged in the area of the exhaust gas side.
  • Figures 1 and 2 show a more or less schematic representation of an embodiment of the steam generator according to the Invention.
  • the steam generator shown schematically in the drawing essentially consists of the flow tube 1 which is spirally wound in one or more layers and which is wound into a closed jacket 7.
  • the lower end of the flow tube 1 is connected to a water inlet 8 and the upper end to a steam outlet 9.
  • an oil or gas burner 10 is directed, the heating and combustion gases of which flow downward in the cavity and thus on the inner surface of the jacket formed by the flow tube.
  • the jacket 7 surrounding the cavity is surrounded at ground clearance and leaving a first annular gap 11 free by an inner housing 2 which is connected at its upper end to an exhaust gas outlet line 12 for the exhaust gases flowing upward in the first annular gap 11 in the direction of arrow a.
  • the inner housing 2 is surrounded by a further housing 3 at a distance from the floor and ceiling and leaving a second annular gap 13 free.
  • This second annular gap is connected in the region of its lower end to the pressure side of a blower 6 and at its upper end to the burner 10 in order to supply combustion air to it in the direction of the arrows b.
  • This combustion air flowing in the direction of the arrows b is heated by the exhaust gases flowing upwards in direct current through the first annular gap 11.
  • the further housing 3 is housed at a distance from the floor and ceiling and leaving a third annular gap 14 in an outer housing 4, which is provided on its upper side with a suction opening 5 for combustion air, preferably covered by a filter or a grid 15, and in the region of its lower end is connected to the suction side of the blower 6.
  • the combustion air flowing through the third annular gap 14 in the direction of the arrows c and sucked in from the environment is thus preheated in countercurrent to the heated combustion air rising through the second annular gap 13, as a result of which overall a heating of the combustion air supplied to the combustion takes place which is beyond the previous level. This results in an increase in the efficiency of the burner.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Air Supply (AREA)
  • Detergent Compositions (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Gas Burners (AREA)
EP83102879A 1982-04-17 1983-03-23 Dampferzeuger Expired EP0092063B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83102879T ATE35043T1 (de) 1982-04-17 1983-03-23 Dampferzeuger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3214228 1982-04-17
DE3214228 1982-04-17

Publications (3)

Publication Number Publication Date
EP0092063A2 EP0092063A2 (de) 1983-10-26
EP0092063A3 EP0092063A3 (en) 1984-08-29
EP0092063B1 true EP0092063B1 (de) 1988-06-08

Family

ID=6161170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102879A Expired EP0092063B1 (de) 1982-04-17 1983-03-23 Dampferzeuger

Country Status (7)

Country Link
US (1) US4465025A (da)
EP (1) EP0092063B1 (da)
AT (1) ATE35043T1 (da)
CA (1) CA1199239A (da)
DE (1) DE3377006D1 (da)
DK (1) DK155462C (da)
ES (1) ES271477Y (da)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8304041A (nl) * 1983-11-24 1985-06-17 Remeha Fabrieken Bv Verwarmingsketel met verticale branderbuis.
US4750452A (en) * 1984-08-07 1988-06-14 Vulcan Australia Limited Water heater
US4899696A (en) * 1985-09-12 1990-02-13 Gas Research Institute Commercial storage water heater process
US4671213A (en) * 1986-03-21 1987-06-09 Horng Horng Her Structural improvement in the burning chamber of a horizontal boiler
GB8620377D0 (en) * 1986-08-21 1986-10-01 Maton M E G Water heater
US4782815A (en) * 1987-02-20 1988-11-08 Carrier Corporation Liquid-backed gas-fired heating system
US4993402A (en) * 1989-12-18 1991-02-19 Carrier Corporation Fuel efficient rapid response water heating module
JP2632635B2 (ja) * 1993-02-25 1997-07-23 株式会社ヒラカワガイダム 水管群を有するボイラの燃焼装置と該燃焼装置を使用するボイラの燃焼方法
DE19912035C2 (de) * 1998-03-27 2002-01-24 Harry Kraus Feuerungseinrichtung zur Dampferzeugung
KR101277079B1 (ko) * 2011-02-14 2013-06-20 에스제이이 주식회사 연관식 겸용 수관식 스팀 보일러
CN103318577B (zh) * 2013-06-21 2015-05-06 李旭丹 蒸汽加热排气容器
US20160238277A1 (en) * 2015-02-17 2016-08-18 Clearsign Combustion Corporation Box heater including a perforated flame holder
CN104964262A (zh) * 2015-07-31 2015-10-07 延吉恒燃节能科技开发有限公司 单根烟气管式小型锅炉
CN105588102A (zh) * 2016-02-22 2016-05-18 大震锅炉工业（昆山）有限公司 一种自冷却锅炉的保温系统
DE112017007866A5 (de) * 2017-08-17 2020-04-30 Alfred Kärcher SE & Co. KG Durchlauferhitzer für ein hochdruckreinigungsgerät

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE134818C (da) *
US1814605A (en) * 1927-10-04 1931-07-14 Siemens Ag Steam generator
US2832320A (en) * 1953-12-14 1958-04-29 Thome Robert Gas-fired boiler, more particularly for central heating plants
GB1011271A (en) * 1962-02-19 1965-11-24 Mitchell Engineering Ltd Improvements in or relating to water tube boilers
GB1221521A (en) * 1967-04-29 1971-02-03 Mitchell Engineering Ltd Improvements in or relating to water tube boilers
US3650248A (en) * 1970-06-08 1972-03-21 Avy Lewis Miller Heating system
JPS4719843U (da) * 1971-01-26 1972-11-06
FR2191080B3 (da) * 1972-06-28 1976-05-21 Wanson Constr Mat Therm
NL171194C (nl) * 1978-05-23 1983-02-16 Giesen Metaalgieterij Warmwater-ketel, bijvoorbeeld een centrale verwarmingsketel.
US4366778A (en) * 1980-03-27 1983-01-04 Paquet Thermique, S.A. Gas boiler able to operate in a sealed combustion circuit
US4387669A (en) * 1982-03-29 1983-06-14 Murrell's Welding Works, Inc. Heater

Also Published As

Publication number Publication date
EP0092063A3 (en) 1984-08-29
DK155462C (da) 1989-10-16
ES271477U (es) 1983-09-16
EP0092063A2 (de) 1983-10-26
ATE35043T1 (de) 1988-06-15
DK155462B (da) 1989-04-10
DK165983D0 (da) 1983-04-15
ES271477Y (es) 1984-03-16
DE3377006D1 (en) 1988-07-14
US4465025A (en) 1984-08-14
CA1199239A (en) 1986-01-14
DK165983A (da) 1983-10-18

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