EP0881439A2 - Gasbeheizter Wassererhitzer mit einer Abgassammelhaube - Google Patents
Gasbeheizter Wassererhitzer mit einer Abgassammelhaube Download PDFInfo
- Publication number
- EP0881439A2 EP0881439A2 EP98106557A EP98106557A EP0881439A2 EP 0881439 A2 EP0881439 A2 EP 0881439A2 EP 98106557 A EP98106557 A EP 98106557A EP 98106557 A EP98106557 A EP 98106557A EP 0881439 A2 EP0881439 A2 EP 0881439A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust gas
- water heater
- flow
- temperature sensor
- tank
- 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- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title 1
- 239000003546 flue gas Substances 0.000 title 1
- 239000007789 gas Substances 0.000 title 1
- 238000009434 installation Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 1
Images
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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
- F24H9/2042—Preventing or detecting the return of combustion gases
- F24H9/205—Closing the energy supply
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/112—Preventing or detecting blocked flues
- F24H15/116—Disabling the heating means in response thereto
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/235—Temperature of exhaust gases
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/36—Control of heat-generating means in heaters of burners
Definitions
- the invention is based on a gas-fired water heater according to the genus of the main claim.
- the known Water heater of the generic type is the Temperature sensor except from the convection heat of the passing exhaust gas also from the radiant heat Adjacent building and wall parts of the exhaust gas hood influenced. That can be undesirable Safety shutdowns result because of the radiant heat the temperature signal from the back-flowing exhaust gas is superimposed and adulterated.
- the flow control element is the temperature sensor against the Radiation from neighboring parts of the exhaust hood shielded and therefore actually only the temperature of return flowing exhaust gas detected. That allows a finer one Adjustment of the temperature sensor to a lower one Temperature level and leads to compliance even more stringent Security requirements.
- the Flow guide element is a rigid body that with a Bore for receiving the temperature sensor is provided dimensioned and in the side outlet opening of the Exhaust gas hood is arranged that convection too guaranteed small amounts of exhaust gas around the temperature sensor is.
- FIG. 1 shows schematically and reduced a partial section through an exhaust gas hood of a gas-heated Water heater and in Figure 2 is a larger scale Part of the safety device of the water heater shown.
- an exhaust gas hood 10 In an exhaust gas hood 10 are between one Entrance area 12 and a sleeve 14 for chimney connection several flow baffles 16, 18, 20, 22 arranged.
- the exhaust gas hood 10 has one side Exit opening 24, through which backlog exhaust gas in the Installation room of the water heater can flow.
- a temperature sensor 26 In the Outlet opening 24, a temperature sensor 26 is installed, which is exposed to the temperature influence of the exhaust gas flows through the outlet opening 24.
- the temperature sensor 26 is part of a safety device that controls the gas burner of the water heater turns off when the flow through the Exit opening 24 lasts longer than a predetermined time.
- the temperature sensor 26 is in a bore 28 Flow guide body 30 arranged from there is heat-insulating material and the temperature sensor 26 against the radiation of neighboring building and wall parts of the Exhaust gas hood 10 shields.
- the bore 28 and the Annulus 32 between temperature sensor 26 and bore wall are dimensioned so that convection is even smaller Exhaust gas quantities are guaranteed through them.
- the Temperature signal of the exhaust gas flowing back is given by the Radiation from neighboring parts is not affected and falsified, so that unnecessary shutdowns of the Safety device can be avoided.
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)
- Ventilation (AREA)
- Percussion Or Vibration Massage (AREA)
- Prevention Of Fouling (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Control Of Combustion (AREA)
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
Description
Claims (2)
- Gasbeheizter Wassererhitzer mit einer Abgassammelhaube, die zur Strömungssicherung eine seitliche Austrittsöffnung hat, in welche ein von rückstauendem Abgas umströmter Temperaturfühler einer Sicherheitseinrichtung eingebaut ist, dadurch gekennzeichnet, daß der Temperaturfühler (26) mit Abstand von einem Strömungsleitelement (30) umgeben ist.
- Wassererhitzer nach Anspruch 1, dadurch gekennzeichnet, daß das Strömungsleitelement (30) ein starrer und wärmeisolierender Körper ist, der mit einer Bohrung (28) zur Aufnahme des Temperaturfühlers (26) versehen ist, die so dimensioniert und in der seitlichen Austrittsöffnung (24) der Abgassammelhaube (10) angeordnet ist, daß eine Konvektion auch geringer Abgasmengen um den Temperaturfühler (26) gewährleistet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29709431U DE29709431U1 (de) | 1997-05-30 | 1997-05-30 | Gasbeheizter Wassererhitzer mit einer Abgassammelhaube |
DE29709431U | 1997-05-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0881439A2 true EP0881439A2 (de) | 1998-12-02 |
EP0881439A3 EP0881439A3 (de) | 2000-05-17 |
Family
ID=8040936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98106557A Withdrawn EP0881439A3 (de) | 1997-05-30 | 1998-04-09 | Gasbeheizter Wassererhitzer mit einer Abgassammelhaube |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0881439A3 (de) |
DE (1) | DE29709431U1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT503132B1 (de) * | 2006-04-10 | 2007-08-15 | Vaillant Austria Gmbh | Verfahren zur überwachung einer strömungssicherung für heizgeräte |
EP3667198A1 (de) * | 2018-12-12 | 2020-06-17 | Bosch Termotecnologia S.A. | Wassererhitzer mit verbesserter überwachung |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6305369B1 (en) * | 2000-10-18 | 2001-10-23 | Carrier Corporation | Safeguard for furnace draft system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR829532A (fr) * | 1937-02-25 | 1938-06-29 | Blanc & Cie | Perfectionnement aux interrupteurs de tirage |
US3537803A (en) * | 1969-10-29 | 1970-11-03 | Joseph N Ignazio | Safety device for gas-fired furnaces and the like |
DE2260517B2 (de) * | 1972-12-11 | 1975-11-06 | Wamsler-Herd- Und Ofen Gmbh, 8000 Muenchen | Rückstromsicherung für ein Gas-Raumheizgerät |
US4080151A (en) * | 1976-01-22 | 1978-03-21 | John Zink Company | Furnace pressure sensor |
DE3008399A1 (de) * | 1980-03-05 | 1981-09-17 | Küppersbusch AG, 4650 Gelsenkirchen | Gas-raumheizungsgeraet |
ATA238591A (de) * | 1991-12-02 | 1995-11-15 | Vaillant Gmbh | Abgassystem |
-
1997
- 1997-05-30 DE DE29709431U patent/DE29709431U1/de not_active Expired - Lifetime
-
1998
- 1998-04-09 EP EP98106557A patent/EP0881439A3/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
None |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT503132B1 (de) * | 2006-04-10 | 2007-08-15 | Vaillant Austria Gmbh | Verfahren zur überwachung einer strömungssicherung für heizgeräte |
EP1845318A2 (de) * | 2006-04-10 | 2007-10-17 | Vaillant GmbH | Verfahren zur Überwachung einer Strömungssicherung |
EP3667198A1 (de) * | 2018-12-12 | 2020-06-17 | Bosch Termotecnologia S.A. | Wassererhitzer mit verbesserter überwachung |
Also Published As
Publication number | Publication date |
---|---|
EP0881439A3 (de) | 2000-05-17 |
DE29709431U1 (de) | 1998-10-22 |
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