ES1204839U - Manual pellet burner for use in barbecues, ovens and/or chimneys. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Manual pellet burner for use in barbecues, ovens and/or chimneys, characterized by its configuration according to a shell or outer shell without upper or lower cover, provided at its lower end with corresponding openings towards the outside, designed for its seating on any horizontal surface, which contains inside a compartment or combustion box of the pellet provided with small perforations both in its bottom and in its side walls, according to a configuration that forms an intermediate air chamber. (Machine-translation by Google Translate, not legally binding)

Description

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DESCRIPTION

Manual pellet burner for use in barbecues, ovens and / or fireplaces.

OBJECT OF THE INVENTION

The present invention falls within the field of biomass burners and, more specifically, in the field of pellet burners in applications such as barbecues, braziers, wood burning fireplaces, ovens and / or outdoor heating on terraces, gardens, etc., or even in enclosed areas equipped with the corresponding flue gas evacuation system.

BACKGROUND IN THE STATE OF THE TECHNIQUE

In the market there are currently many biomass burners, which are part, or are configured to operate with boilers, both for the production of domestic hot water and for its operation as heating, by incorporating the corresponding mechanical systems and control.

The use of biomass as fuel is becoming popular because it is a source of clean and ecological energy, as well as high calorific value and low cost. There is a wide variety of commercial biomass products, for example, pellets, nutshells (almonds, for example), and bones of other fruits, such as olives. The referred commercial biomass products, due to their small size, can be easily transported, as well as stored in hoppers or silos, from where, by gravity, or through motorized ducts (for example, spindles), they are transported to the burner , where they are burned, to produce a flame that heats a water circuit of a domestic hot water or heating boiler.

However, biomass burners require high maintenance, since biomass products, due to their granular configuration, give off a large amount of dust and particles, which make the different mechanisms that make up the burner dirty. Also, the ashes produced in combustion require periodic cleaning of the combustion chamber for good burner performance.

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According to the state of the art, in the invention identified by publication number and title respectively,

1. Horizontal flame biomass burner ES2523952 A1

2. Biomass burner and procedure for burning biomass in said burner ES2558052 A1

3. Burning grill for biomass burners and biomass burner WO 2016001463 A1

4. Mobile modular system for the energy use of forest waste WO 2013064864 A1

5. Wood, coal or biomass saving stove, with multiple combustion chamber, thermal insulation, cooking plate and chimney

WO 2013051923 A1

Specifically, the burn grill described in WO 2016001463 A1, already proposes a design that facilitates the entry and distribution of combustion air inside the burner home, causing that, with the corresponding specific regulation, combustion can be carried out of any type of biomass of those commonly used, such as nutshell, pellet or bone, of different origins and nature. In addition, access through the front of the burner greatly facilitates the maintenance operations to be performed, minimizing these with respect to the most widespread burners in the market.

However, with the "Manual pellet burner for use in barbecues, ovens and / or chimneys", proposed with the present invention, it provides with respect to the state of the art a simple burner of complete or partial load but associated with an uninterrupted use until its total combustion, which incorporates the following advantages;

• Ease of manufacture and use.

• Adapted to the use of pellets.

• Compatibility of use as barbecue and brazier.

• Fuel efficiency, duration and safety of use.

• Simple adaptation for use in multiple applications such as barbecues, wood ovens, garden heaters, braziers and fireplaces.

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• Combustion downwards, in two stages a first of which the combustion of the pellets occurs, followed by a second combustion stage in which the carbonization is carried out.

EXPLANATION OF THE INVENTION

By way of explanation of the "Manual pellet burner for use in barbecues, ovens and / or chimneys", it consists of a device according to an envelope or outer shell without top or bottom cover, provided at its lower end of the corresponding openings towards the exterior, conceived for its seat on any horizontal surface, which contains inside a combustion compartment or drawer of the pellet provided with small perforations both in its bottom and in its side walls, according to a configuration that forms an intermediate air chamber to from which the combustion is favored by the entry of air by the aforementioned openings in the chamber itself and its exit by the perforations into the drawer or home where the combustion is taking place, starting at the upper end until the bottom of the drawer, according to a first stage in which the combustion of the pellets occurs, followed by a second e combustion cover in which the carbonization is carried out.

DESCRIPTION OF THE DRAWINGS

To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. For illustrative purposes and not limitation, the following has been represented:

Figure 1.- Main perspective view of "Manual pellet burner for use in barbecues, ovens and / or chimneys".

Figure 2.- Main perspective view of inner drawer provided with holes to allow air to pass through it.

Figure 3.-Main elevation view of the housing as an outer envelope, once cut and before folding and welding.

Figure 4.-View in main elevation of the interior drawer once cut, and the perforations made before folding and welding.

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In the mentioned figures the following constituent elements can be highlighted;

1. Coronation surface of indoor air chamber.

2. Side covers of the outer evolver provided with lower openings designed to facilitate the entry of air into the interior.

3. Bottom of the drawer provided with holes to allow air to pass inside.

4. Drawer side covers provided with holes in its upper end to facilitate the passage of air from the inner air chamber into the drawer.

EXAMPLE OF PREFERRED EMBODIMENT

As a preferred embodiment of the "Manual pellet burner for use in barbecues, ovens and / or chimneys", it can be carried out in the light of Figures 1-4, using 2 mm stainless steel sheet thick, based on two pieces, according to the outer shell or enclosure shown in Figure 3, and drawer dimensions of 130 mm base and height 300 mm deep, lower openings 70 mm long by 10 mm height, coronation reinforcements 1 and inner air chamber closure 25 mm wide, and the inner drawer can also be carried out in 2 mm thick stainless steel sheet, according to the development of Figure 4 of drawer dimensions of 110 mm base and height 280 mm deep, according to perforations of 10 mm in diameter.

The assembly once cut to the agreed extent, and having made the corresponding openings and perforations can be mounted by means of the corresponding folding of sheet metal and welding until forming the assembly shown in Figure 1, starting with the outer casing or shell of the Figure 3, which once completed, can incorporate through its hollow bottom section, the inner drawer completely folded and welded except for its bottom not yet folded, in order to facilitate manual positioning and welding between two pieces at the top end of the drawer and the crowning surface to form the interior cabin as an air chamber and finally carry out the folding and perimeter welding of the bottom of the drawer provided with holes.

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From the set described, it is important to highlight how the inner drawer of Figure 2 is slightly raised on the ground, based on its dimensions and fixation by its upper end, favoring that once the full load of pellet fuel has been made by upper manual filling of the aforementioned drawer and combustion activated using some kind of ignition gel that we can distribute over the entire upper surface of the fuel, there is a homogeneous, autonomous, efficient and complete combustion of the pellet load starting at the top until reaching the bottom of the drawer, favored by the generation of an air current that accesses the drawer through the openings and perforations of the assembly, facilitating the access of oxygen to the combustion itself throughout the interior drawer according to the combustion stages.

Being a burner of charge and complete combustion, once all the calorific power of the fuel has been obtained it is replaced, removing all the ashes from the drawer for another subsequent use with new pellet loading similar to the previous one. Obviously the load to be carried out will depend on the needs to be covered, by way of example in a range between 1 and 15 kg of pellets. Thus 1 Kg of pellets allows to keep an active fire for more than one hour and a embers for more than three additional hours.

Likewise, the combustion capacity will depend on the depth of the drawer and the size of its horizontal section, increasing with it the needs of fuel to be used, achieving a natural combustion and therefore slower than in automated and mechanized systems, where the combustion is forced, direct and fleeting.

It is not considered necessary to make this description more extensive so that any person skilled in the art understands the scope of the invention and the advantages derived therefrom, the materials used for its manufacture, shape and size depending on the intended use and required heat generation times, or the marketing designs themselves, as well as the necessary complements for use as barbecue or brazier, including their accessories for the removal of ashes, will be subject to variation as long as this does not imply an alteration in the Essentiality of the invention. The terms in which the report has been described must be understood in a broad and non-limiting sense.

Claims (1)

1. Manual pellet burner for use in barbecues, ovens and / or chimneys, characterized by its configuration according to an envelope or outer shell without top or bottom cover, provided at its lower end with the corresponding openings 5 towards the outside, designed for seat on any horizontal surface, which It contains inside a combustion compartment or drawer of the pellet provided with small perforations both in its bottom and in its side walls, according to a configuration that forms an intermediate air chamber.