BE1024867B1 - DETACHED GAS FIREPLACE - Google Patents

Abstract

This invention relates to a freestanding gas fire (1) of the closed or hermetic type wherein the flame image is visible through all peripheral walls, comprising a combustion chamber (2) formed by an upper (3) and lower wall (4) and a number of peripheral walls (5; 6a, 6b; 7; 8a, 8b), discharge means (5) with a discharge opening (9) for discharge of the combustion gases from the combustion chamber (2) and feed means with one or more supply openings (10) for the supply of the combustion air in the combustion chamber (2), wherein one or more supply openings (10) are provided in the bottom wall (4) through which the combustion air can flow via the underside of the gas fire (1) into the combustion chamber (2) and wherein the discharge opening (9) is provided in the upper wall (3) wherein the discharge means comprise at least one discharge channel (11; 12) extending between the upper (3) and lower wall (4) of the combustion chamber (2) through which the combustion gases via the underside of the gas fireplace (1) ) from the combustion chamber (2 ) can flow.

Description

(30) Priority data:

(73) Holder (s):

DEBATRA BVBA 9840, DE PINTE Belgium (72) Inventor (s):

THE INVENTION Karl 9840 DE PINTE Belgium (54) DETACHED GAS FIRE (57) This invention relates to a freestanding gas fireplace (1) of the closed or hermetic type in which the flame image is visible through all circumferential walls, comprising a combustion chamber (2) formed by a top ( 3) - and bottom wall (4) and a number of circumferential walls (5; 6a, 6b; 7; 8a, 8b), discharge means (5) with a discharge opening (9) for discharging the combustion gases from the combustion chamber (2) and supply means with one or more supply openings (10) for supplying the combustion air into the combustion chamber (2), one or more supply openings (10) being provided in the bottom wall (4), through which the combustion air flows into the bottom of the gas fire (1). combustion chamber (2) can steam and the discharge opening (9) is provided in the top wall (3), the discharge means having at least one

exhaust duct (11; 12) which extends between the top (3) and bottom wall (4) of the combustion chamber (2) through which the combustion gases can flow out of the combustion chamber (2) via the underside of the gas fire (1).

BELGIAN INVENTION PATENT

FPS Economy, K.M.O., Self-employed & Energy

Publication number: 1024867 Filing number: BE2016 / 5968

Intellectual Property Office

International classification: F24C 3/00 F23J 13/02 Date of issue: 31/07/2018

The Minister of Economy,

Having regard to the Paris Convention of 20 March 1883 for the Protection of Industrial Property;

Having regard to the Law of March 28, 1984 on inventive patents, Article 22, for patent applications filed before September 22, 2014;

Having regard to Title 1 Invention Patents of Book XI of the Economic Law Code, Article XI.24, for patent applications filed from September 22, 2014;

Having regard to the Royal Decree of 2 December 1986 on the filing, granting and maintenance of inventive patents, Article 28;

Having regard to the application for an invention patent received by the Intellectual Property Office on 23/12/2016.

Whereas for patent applications that fall within the scope of Title 1, Book XI, of the Code of Economic Law (hereinafter WER), in accordance with Article XI.19, § 4, second paragraph, of the WER, the granted patent will be limited. to the patent claims for which the novelty search report was prepared, when the patent application is the subject of a novelty search report indicating a lack of unity of invention as referred to in paragraph 1, and when the applicant does not limit his filing and does not file a divisional application in accordance with the search report.

Decision:

Article 1

DEBATRA BVBA, Keistraat 127, 9840 DE PINTE Belgium;

represented by

CHIELENS Kristof, Pres. Kennedypark 31c, 8500, KORTRIJK;

OSTYN Frans, Pres. Kennedypark 31c, 8500, KORTRIJK;

HOSTENS Veerle, Pres. Kennedypark 31c, 8500, KORTRIJK;

CARDOON Annelies, Pres. Kennedypark 31c, 8500, KORTRIJK;

a Belgian invention patent with a term of 20 years, subject to payment of the annual fees as referred to in Article XI.48, § 1 of the Code of Economic Law, for:

DETACHED GAS FIRE.

INVENTOR (S):

DE BAENST Karl, Keistraat 127, 9840, DE PINTE;

PRIORITY:

BREAKDOWN:

Split from basic application: Filing date of the basic application:

Article 2. - This patent is granted without prior investigation into the patentability of the invention, without warranty of the Merit of the invention, nor of the accuracy of its description and at the risk of the applicant (s).

Brussels, 31/07/2018,

With special authorization:

BE2016 / 5968

DETACHED GAS FIRE

This invention relates to a gas fire of the closed or hermetic type, wherein the flame image is visible through all circumferential walls, comprising a combustion chamber formed by an upper and lower wall and a number of circumferential walls, discharge means with a discharge opening for discharge of the combustion gases from the combustion chamber and supply means with one or more supply openings for the supply of combustion air into the combustion chamber. The gas fire according to this invention is in particular a see-through fire that can be positioned freestanding in a room, where no connection channel is visible anywhere.

Decorative fireplaces come in many shapes, styles and sizes. The see-through fireplace is a special shape that is gaining increasing acceptance. Such fireplaces have two, three or more transparent (see-through) circumferential walls, and are placed in such a way that the fire is visible through the relevant walls.

The hermetically sealed gas-fired heating appliances are known in the market as closed combustion appliances (English / 'balanced flue'; French: 'circuit étanche'). These appliances have a closed combustion chamber to which a centrally located exhaust pipe (channel, pipe) for the combustion gases and around a concentrically running supply pipe for the supply of combustion air in the combustion chamber are connected.

In order to generate an air circulation in the appliance, the supply and discharge openings are provided in the top wall of the appliance. This is because during the use of such appliances, the hot combustion gases rise in the centrally placed exhaust pipe while the cold combustion air in the supply pipe decreases. In view of the limited rising force of the combustion gases and also due to the heat exchange between the two channels, as a result of which the cold air becomes warmer and it also tends to rise, the length of the supply and discharge pipe is limited to 10 meters.

BE2016 / 5968

In some cases, air circulation is activated mechanically by placing a fan in the supply or exhaust pipe.

Appliances with two or three transparent (see-through) peripheral walls are placed in a wall or wall in such a way that the supply and discharge pipes are concealed behind a retention wall at the top of the appliance. However, with an appliance with four (or more) transparent (see-through) circumferential walls, which is placed centrally in a room, the centrally placed discharge pipe (channel, pipe) for the combustion gases and the concentrically running supply pipe placed around it remain for the supply. of the combustion air in the combustion chamber, visible, unless placed around an enclosure. In both cases, however, it is aesthetically disturbing.

In order to avoid the above-mentioned drawbacks, the object of the invention is therefore to provide an atmospheric fireplace, in particular a free-standing gas fire of the closed type with at least four transparent (see-through) circumferential walls, and without a visible supply and discharge pipe.

The object of the invention is achieved by providing a gas fire of the closed or hermetic type, wherein the flame image is visible through all circumferential walls, comprising a fire chamber formed by an upper and lower wall and a number of circumferential walls, discharge means with a discharge opening for discharge of the combustion gases from the combustion chamber and supply means with one or more supply openings for the supply of the combustion air into the combustion chamber, the one or more supply openings being provided in the bottom wall, so that the combustion air can flow through the bottom of the gas fire and wherein the discharge opening is provided in the top wall, wherein the discharge means comprise at least one discharge channel which extends between the top and bottom wall of the combustion chamber, whereby the combustion gases can flow out of the combustion chamber via the underside of the gas fire. By designing the gas fire in this way, it is still possible to get the combustion air into the

BE2016 / 5968 combustion chamber through the bottom, but the combustion gases can also be discharged through the bottom of the appliance, so that no channels are visible above the appliance.

The fireplace according to the invention can be made in various shapes, such as, for example, cubic, triangular, pentagonal, hexagonal, etc. For this purpose, the fireplace preferably comprises three, four, five or more circumferential walls. The peripheral walls are preferably made of heat-resistant glass.

In a preferred embodiment of the fireplace according to the invention, the discharge channel is provided between two circumferential walls. Preferably, two discharge channels are provided in the fireplace which extend directly opposite one another. The discharge channels are in particular provided with a recess and which form a receiving space for the longitudinal ends of the circumferential walls. The drains are preferably made of metal or stainless steel.

In an alternative embodiment, the one or more discharge channels can also be provided inside or outside the burner space.

In a more preferred embodiment of the fireplace according to the invention, the (metal) discharge channels are connected to the bottom wall and top wall of the combustion chamber via a weld or screw connection.

In a special embodiment of the fireplace according to the invention, the gas fireplace comprises at least two concentric pipes in which the first inner pipe forms part of the discharge means and is provided for the discharge of the combustion gases and in which the second pipe forms part of the supply means and is provided for supply of the combustion air, said pipes being provided under the combustion chamber. A number of supply openings are provided in the bottom wall to allow the combustion air to flow through the bottom of the combustion chamber. In an advantageous embodiment of the decorative fireplace

BE2016 / 5968 according to the invention, a taper is provided in the inner tube to generate a negative pressure. The air velocity can also be measured via this narrowing. With the measured values, it can be assessed via a control device whether the flue gases are sufficiently removed and, if necessary, a safety device can be controlled to switch off the decorative fireplace in case of insufficient discharge.

According to a more special embodiment of the fireplace according to the invention, the discharge means further comprise a fan device for discharging the combustion gases.

In order to further clarify the properties of this invention and to indicate additional advantages and details thereof, a more detailed description of the decorative fireplace according to the invention will now follow. It is to be understood that nothing in the description hereinafter can be interpreted as limiting the protection claimed in the claims for this invention.

In this description reference is made by reference numerals to the accompanying drawings, in which:

figure 1 is a perspective representation of a decorative fireplace according to the invention, wherein all upright circumferential walls are made of a transparent material;

figure 2 is a representation of the decorative fireplace shown in figure 1, on which the flow direction of the combustion gases are shown;

figure 3 shows a cross-section of the decorative fireplace according to the invention showing the flow direction of the combustion air and the combustion gases;

figure 4: is a schematic representation of the decorative fireplace according to the invention, which is connected to a facade.

BE2016 / 5968

This invention relates to a decorative fireplace (1) (see figure 1) which comprises a combustion chamber (2) formed in a housing formed by an upper and lower wall (3) and a number of circumferential walls (5; 6a, 6b; 7; 8a , 8b). The peripheral walls (5; 6a, 6b; 7; 8a, 8b) are made of a transparent material, preferably heat-resistant glass. The glass from which the peripheral walls (5; 6a, 6b; 7; 8a, 8b) are formed has a thickness of 5 mm as standard, however deviating values are also possible.

Although the fireplace shown is of cubic design, it is self-evident that fireplaces with deviating shapes also fall within the scope of protection of this invention.

The decorative fireplace according to the present invention is more particularly a closed or hermetic type gas fireplace. With a closed system, the gas fire has a double-walled system. The outer tube (14) draws in fresh air (combustion air), while the inner tube (13) will exhaust the combustion gases. The fresh (combustion) air is introduced at the bottom level through supply openings (10) provided in the bottom wall of the combustion chamber (2).

With the decorative fireplace (1) according to the invention, the discharge opening (9) is provided in the top wall (3). It is true that the combustion gases are discharged through the bottom of the gas fire (1). To this end, the discharge means comprise at least one discharge channel (11; 12) which extends between the top (3) and bottom wall (4) of the combustion chamber (2), so that the combustion gases pass out of the combustion chamber (2) via the underside of the gas fire (1). ) can stream.

The gas fireplace (1) as shown in the attached figures is provided with two discharge channels (11, 12), which are each placed between two circumferential walls (6a, 6b; 8a, 8b). As a result, the combustion gases that disappear from the combustion chamber (2) via the discharge opening (9), as shown in Figure 2, will pass through the two discharge channels.

BE2016 / 5968 must be discharged in the direction of the inner pipe (13) which, as shown in figure 4, communicates with the outside environment (eg through an opening in the facade). The inner tube (13) is provided with a narrowing (narrowing) in order to create a negative pressure (venturi effect) and to measure the air speed.

In order to achieve a good discharge of the combustion gases, the inner tube (13) is further provided with a fan device (15).

BE2016 / 5968

Claims (8)

CONCLUSIONS Closed or hermetic type gas fire (1) in which the flame image is visible through all circumferential walls, comprising a combustion chamber (2) formed by an upper (3) and lower wall (4) and a number of circumferential walls (5; 6a, 6b ; 7; 8a, 8b), exhaust means (5) with an exhaust opening (9) for exhausting the combustion gases from the combustion chamber (2) and supply means with one or more supply openings (10) for supplying the combustion air into the combustion chamber (2 ), characterized in that the one or more supply openings (10) are provided in the bottom wall (4), so that the combustion air can flow through the bottom of the gas fire (1) into the combustion chamber (2) and that the discharge opening (9) is in the top wall (3) wherein the discharge means comprise at least one discharge channel (11; 12) extending between the top (3) and bottom wall (4) of the combustion chamber (2) through which the combustion gases pass through the bottom of the gas fire ( 1) steam from the combustion chamber (2). Closed or hermetic type gas fireplace (1) according to claim 1, characterized in that the exhaust duct (11; 12) is provided between two circumferential walls (6a, 6b; 8a, 8b). Closed or hermetic type gas fire (1) according to claim 1 or 2, characterized in that the peripheral walls (5; 6a, 6b; 7; 8a, 8b) are transparent. Closed or hermetic type gas fire (1) according to any one of the preceding claims, characterized in that the gas fire (1) comprises at least two concentric pipes (13; 14), the first inner pipe (13) being part of the exhaust means and is provided for exhausting the combustion gases and wherein the second tube (14) forms part of the supply means and is provided for supplying the combustion air, the said tubes (13; 14) being provided under the combustion chamber (2). BE2016 / 5968 Closed or hermetic type gas fire (1) according to claim 1, characterized in that a narrowing (16) is provided in the inner tube (13) to generate an underpressure. Closed or hermetic type gas fire (1) according to any one of the preceding claims, characterized in that the discharge means further comprise a fan device ( 7) includes for exhausting the combustion gases. Closed or hermetic gas fireplace (1) according to any one of the preceding claims, characterized in that the peripheral walls (4a; 4b; 4c; 4d) are made of heat-resistant glass. 8. Closed or hermetic type gas fireplace (1) according to one of the Previous claims, characterized in that the fireplace comprises three, four, five or more circumferential walls. BE2016 / 5968 BE2016 / 5968