GB2438866A - Fan flued gas fire comprising a flue flow blocking device - Google Patents
Fan flued gas fire comprising a flue flow blocking device Download PDFInfo
- Publication number
- GB2438866A GB2438866A GB0611191A GB0611191A GB2438866A GB 2438866 A GB2438866 A GB 2438866A GB 0611191 A GB0611191 A GB 0611191A GB 0611191 A GB0611191 A GB 0611191A GB 2438866 A GB2438866 A GB 2438866A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fire
- flue
- fan
- operated
- gas fire
- 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.)
- Granted
Links
- 230000000903 blocking effect Effects 0.000 title claims abstract description 6
- 239000007789 gas Substances 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/08—Doors or covers specially adapted for smoke-boxes, flues, or chimneys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L11/00—Arrangements of valves or dampers after the fire
- F23L11/005—Arrangements of valves or dampers after the fire for closing the flue during interruption of burner function
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air-Flow Control Members (AREA)
Abstract
A flue flow blocking device for a fan flued gas fire is operated by manual or actuator means not relying on air flow energy or aerodynamic principles for operation. Preferably, the device is interlocked with air flow sensing devices controlling the fire so as to ensure fail safe operation. The device may be operated by a fan control system of the gas fire; the device may be operated automatically when the fire is used; or the device may be operated by a user independently of a fire control system. The invention is designed to close off the flue when the fire is not in use so as to prevent the unwanted flow of air to or from a dwelling. Furthermore, the device is designed to pose no significant restriction to the flow of flue products when in an open position.
Description
<p>Title: Improvements to Fan Flued Gas Fires</p>
<p>Description:</p>
<p>Fan flued gas fires are a common solution to fulfil the need for attractive open fronted fuel effect gas fires in dwellings without any kind of existing flue system. A fan is employed in the exterior terminal which mechanically removes the waste products of combustion from the firebox which is mounted inside the dwelling. Various degrees of sophistication exist in these products in terms of control and safety system variation, burner technology, fuel effects and dampening of mechanical extract fan noise. However a common problem with all currently known products is the admission of air currents to or from the dwelling when the fire is not in use by means of air flow forward or reversed through the firebox, flue pipe and fan terminal. The purpose of this invention is to prevent the unwanted ingress or egress of volumes of air to or from the dwelling when the appliance is not in use and thereby improve its over all thermal efficiency as part of the dwelling, and its performance in terms of comfort levels for the user.</p>
<p>Various known passive means of achieving this aim have been tried before with limited success such as terminals of specific size and shape or aerodynamic profile and or having a multitude of inlets and outlets, baffles, swinging plates etc. Known reasons for failure of these passive solutions include excessive restriction to the flow of flue gases when the fire is in operation due to the use of flue gas flow energy in opening the devices, noise from unwanted device movements due to air pressure or air current changes or the continued existence of air flows from those devices which do not completely close off the flue duct.</p>
<p>This invention uses an actively controlled mechanically activated device to close off the flue duct when the fire is not in use thereby eliminating unwanted flow of air through the flue duct, yet the device poses no significant restriction to the flow of flue products when in the open position. The invention comprises an actuator, a mechanism and a flue closing device together with air flow detection interlocking and control interlocking with the existing known control systems of the fan flued gas fire. Interlocking with the control system of the fire is not essential as the user of the appliance may control the actuator manually or provide the actuation by means of a physical linkage from the interior of the dwelling to the outside fan terminal. Additionally, the flue blocking device need not be mounted on the fan terminal outside the dwelling but may conveniently be mounted within the fire or flue assembly inside the dwelling.</p>
<p>A particular example of the invention shown in Figure 1 of the attached drawings comprises (detailed in section Figure 2) an electrical solenoid (7), link rod (3) and pivoted (4) flap (6) contained within an external housing (1) and provided with an outlet grille (5) to protect the moving parts. When the control system for the fan is activated, the solenoid is energised thereby opening the hinged flap and allowing unrestricted movement to the fan induced flow of flue gases (2). The actuator may be operated by electrical, electro mechanical, hydraulic, air or any other convenient means. If the actuator is of a single acting direction type, a return spring, gravity or any other convenient means may be used to close the device. Alternatively the actuator may be used to close the device when the appliance is not in use and a spring or other suitable means may be used to open the device when the appliance is operating. The flue closure device may be pivoted, sliding or provided with any other convenient method of movement. The mechanism may be gears, chain, wire, rod and link or any other convenient means of operation or the actuator may be directly connected to the flue closing device and or mounted on a flexible or rotating mounting.</p>
<p>Flue gas flow detection is essential for the safe operation of fan flued gas fires therefore in this example the invention is interlocked with the existing control system of the fan flued gas fire. This may be conveniently achieved by an air flow measuring device upstream of the flue closing device, blocking an air flow measuring device when the flue closing device is in the closed position or by using limit switches to indicate when the device is in the open or closed position or any other suitable means of interlock. The device may be conveniently activated when the fan is started by the existing fan flue gas fire control system or simply when power is applied or any other suitable means. The flue gas flow may then be sensed or the closure device position sensed as described before the gas ways are permanently opened to allow the burner to be started. If the actuator or mechanism fails in any way, the flue fan control system will render the appliance safe. In this way a fail safe' mode can be established in all conditions.</p>
Claims (1)
- <p>Claims: 1. A flue flow blocking device for a fan flued gas fireoperated by manual or actuator means not relying on air flow energy or aerodynamic principles for operation.</p><p>2. A device as claimed in claim I interlocked with air flow sensing devices controlling operation of the fire so as to ensure fail safe'.</p><p>3. A device as claimed in claim I operated by the fan control system of the gas fire.</p><p>4. A device as claimed in any of the preceding claims that is operated automatically when the fire is operated.</p><p>5. A device as claimed in claim 1 that is operated by the user independently of the fire control system.</p><p>6. A flue blocking device for a gas fire substantially as herein described above and illustrated in the accompanying drawings.</p>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0611191.8A GB2438866B (en) | 2006-06-07 | 2006-06-07 | Improvements to fan flued gas fires |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0611191.8A GB2438866B (en) | 2006-06-07 | 2006-06-07 | Improvements to fan flued gas fires |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0611191D0 GB0611191D0 (en) | 2006-07-19 |
GB2438866A true GB2438866A (en) | 2007-12-12 |
GB2438866B GB2438866B (en) | 2012-01-25 |
Family
ID=36745380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0611191.8A Expired - Fee Related GB2438866B (en) | 2006-06-07 | 2006-06-07 | Improvements to fan flued gas fires |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2438866B (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3934796A (en) * | 1973-11-29 | 1976-01-27 | Smith Jr Paul E | Heating system with fuel saving draft retarder |
CH576104A5 (en) * | 1974-01-23 | 1976-05-31 | Niggli Florian | Flue gas heat utilisation system - has extraction fan and flue closing valve coupled to the burner blower |
FR2319848A1 (en) * | 1975-08-01 | 1977-02-25 | Gross Maurice | Automatic boiler flue damper - has sprung safety valve and is operate by solenoid controlled by boiler firing mechanism |
FR2499215A1 (en) * | 1981-02-05 | 1982-08-06 | Guillois Hubert | Shutter preventing heat loss from chimney flue - is edge hung or has rocking lever counter-weighted to remain open and operated by hand lever |
FR2505457A1 (en) * | 1981-05-08 | 1982-11-12 | Dufois Gilbert | Control for chimney damper - has thermally activated operating piston located in hearth connected to damper via cable |
GB2098710A (en) * | 1981-05-19 | 1982-11-24 | Fabit Ltd | Flue closure damper |
US5295901A (en) * | 1992-08-03 | 1994-03-22 | Lyemance International, Inc. | Top sealing chimney cap |
WO2005108871A2 (en) * | 2004-05-04 | 2005-11-17 | Flue Sentinel, Inc. | Wireless fireplace damper control device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3768956A (en) * | 1972-03-31 | 1973-10-30 | R Mueller | Safety control arrangement |
US4164936A (en) * | 1977-08-18 | 1979-08-21 | Dottore Jr Nicholas J | Damper |
DE2904902A1 (en) * | 1979-02-09 | 1980-08-21 | Uwe Dauper | Chimney pot flap for intermittent firing - is in form of cover hinging upwards, opened by hydraulic etc. remote control |
GB8617519D0 (en) * | 1986-07-17 | 1986-08-28 | Focal Point Fires Ltd | Flues |
GB2201239A (en) * | 1987-01-16 | 1988-08-24 | Strax Distribution Limited | Extraction system for a gas fire or other appliance |
FR2672666A1 (en) * | 1991-02-11 | 1992-08-14 | Brisach Rene Cheminees Sa | Device for extracting gas combustion products with a safety device |
US5450841A (en) * | 1993-05-18 | 1995-09-19 | Gmi Holding, Inc. | Multi-function remote control system for gas fireplace |
NL1024026C2 (en) * | 2003-07-31 | 2005-02-01 | Itho B V | Open hearth combustion installation comprises combustion chamber with gas feed conduit, switchable tap in gas conduit, and flue gas feed channel containing fan for flue gas feed-out from combustion chamber |
-
2006
- 2006-06-07 GB GB0611191.8A patent/GB2438866B/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3934796A (en) * | 1973-11-29 | 1976-01-27 | Smith Jr Paul E | Heating system with fuel saving draft retarder |
CH576104A5 (en) * | 1974-01-23 | 1976-05-31 | Niggli Florian | Flue gas heat utilisation system - has extraction fan and flue closing valve coupled to the burner blower |
FR2319848A1 (en) * | 1975-08-01 | 1977-02-25 | Gross Maurice | Automatic boiler flue damper - has sprung safety valve and is operate by solenoid controlled by boiler firing mechanism |
FR2499215A1 (en) * | 1981-02-05 | 1982-08-06 | Guillois Hubert | Shutter preventing heat loss from chimney flue - is edge hung or has rocking lever counter-weighted to remain open and operated by hand lever |
FR2505457A1 (en) * | 1981-05-08 | 1982-11-12 | Dufois Gilbert | Control for chimney damper - has thermally activated operating piston located in hearth connected to damper via cable |
GB2098710A (en) * | 1981-05-19 | 1982-11-24 | Fabit Ltd | Flue closure damper |
US5295901A (en) * | 1992-08-03 | 1994-03-22 | Lyemance International, Inc. | Top sealing chimney cap |
WO2005108871A2 (en) * | 2004-05-04 | 2005-11-17 | Flue Sentinel, Inc. | Wireless fireplace damper control device |
Also Published As
Publication number | Publication date |
---|---|
GB2438866B (en) | 2012-01-25 |
GB0611191D0 (en) | 2006-07-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6257871B1 (en) | Control device for a gas-fired appliance | |
KR101756588B1 (en) | Damper stopper for fire dooe | |
US11957942B2 (en) | Vented safety cabinet with thermally-actuated damper | |
CN204186476U (en) | Power system | |
US20150192321A1 (en) | Supply-air wall duct | |
GB2438866A (en) | Fan flued gas fire comprising a flue flow blocking device | |
KR100607325B1 (en) | Ventilation system for the connection of exhaust duct and central ventilation system | |
CA2482509A1 (en) | Water heater with mechanical damper | |
GB2454950A (en) | Ventilator unit and alarm activated by hazardous gas levels | |
CN108278643B (en) | Smoke ventilator and fan linking pipe thereof | |
JP5799595B2 (en) | Ventilation fan device | |
WO2014011121A2 (en) | Method and device for automatic regulation of optimal conditions of biomass combustion | |
KR100855716B1 (en) | Fire prevention damper | |
EP3255343A1 (en) | Module for discharging flue gases | |
KR100936206B1 (en) | System damper comprising microprocessor | |
CN216743006U (en) | Fireproof check valve | |
CN219529921U (en) | Check valve and smoke exhaust pipe | |
GB2369571B (en) | Air flow controller and fire damper in an air flow duct | |
CN219712461U (en) | Fire prevention valve and aircraft ground air conditioner assembly | |
CN108317562A (en) | A kind of automatic-lifting type fire safe integrated kitchen range | |
CA1148048A (en) | Apparatus to reduce winter air infiltration into a single family oil heated residence | |
GB2512812A (en) | Method to reduce heat loss up a chimney or flue | |
CN207865458U (en) | Automatic-lifting type fire safe integrated kitchen range | |
JPS5938489B2 (en) | Ventilation fan linked to gas appliances | |
CN116336224A (en) | Check valve and smoke exhaust pipe |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20200607 |