ES2264496T3 - DOUBLE SOLID FUEL BURNER. - Google Patents

Abstract

Double solid fuel burning stove (1) composed of a wood-burning furnace (3), a loose solid fuel furnace (5), a plate containing a heat exchanger (6) which protects the furnace placed above, a small oven (9) for cooking of hot meals, and a heat exchanger (7) used for central or room heating.

Description

Stove to burn double solid fuel.

Patent technical field

The object of this invention is a stove for burn double solid fuel that is suitable for working with fuel such as wood in pieces or in logs and with fuel loose solid such as sawdust, wood pellets, etc.

State of the art

Stoves have been used for many years to burn solid double fuel, especially in locations near forests, due to the quantity and low cost of wood available. For this reason they have represented a very popular source of warming in these regions.

Recently, stoves have been developed for burn solid fuel that run on solid fuel loose such as sawdust, wooden lozenges, olive bones or bones of other nuts, olive remains, etc.

An oven according to the preamble of the claim 1 is known from the document DE-A-3 632 023.

The patent US-B-6213116 describes a stove to burn wood in which two chambers of combustion to increase efficiency. Patent application WO-A-9915833 describes a stove that It works only with wooden pads. Patent application FR-A-2745371 describes a stove to burn coal and wood that can be transformed into a stove with a burner for liquid or gaseous fuels. The technique available today use as fuel or only wood or well only loose solid fuel. Precisely the request Patent FR-A-2745371 uses gaseous or liquid fuel instead of wood. I don't always know guarantees the availability of gaseous fuel and also the cost of these types of fuel is high. The present invention proposes to overcome the problems and inconveniences present in the solutions available in the current market.

The main purpose of this invention is achieved by combining elements in the clause characterizing of claim 1. The main feature of this invention is to have a stove that can burn two types of solid fuel: wood that is easily found near forests and a loose solid fuel that is easy to handle. The wood can be fed to the stove manually, while the solid fuel can be fed to the stove so automatic The presence of two types of fuel allows one of the two mentioned fuels always be available in the market. So, for example, if the wooden pills are not available at the time, wood can be used instead.

Another feature is given by the fact that the wood-burning oven is located below the furnace of Solid fuel loose, which is above.

Another feature is given by the fact that the wood-burning oven is located above the oven of Solid fuel loose, which falls below.

Another feature is given by the fact that the heat exchanger used for water heating and central forms an air envelope surrounding the walls of the same stove.

Another feature is given by the fact that the heat exchanger used for heating forms a water jacket that surrounds the walls of the same stove.

Another feature is given by the fact that the heat exchanger that protects the oven located by above is a heat exchanger of air-water

Another feature is given by the fact that the heat exchanger that protects the oven located by above is a heat exchanger of air-to-air

Another feature is given by the fact that the small oven used for cooking can be extracted to allow complete cleaning of heat exchangers located inside the stove.

Figure 1 represents a section of the stove to burn double solid fuel that is the object of this invention.

In figure 1 you can see the stove (1) to burn double solid fuel, formed by a housing (2) exterior preferably made of steel. At the base of this housing is the oven (3) to burn wood. The wood is supports by a grill (4) and the oven uses the typical system to increase or decrease the air required for combustion (which not shown in the figure).

Above the oven (3) to burn wood is find a second furnace (5) that runs on solid fuel loose such as wood chips, sawdust, olive remains, nuts bones, etc. Under the furnace (5) of fuel loose solid is a water heat exchanger (6) which has the dual function of heating the water contained therein and to protect the furnace (5) from loose solid fuel against a overheating due to flames that may proceed directly from the oven (3) to burn wood. The stove (1) for burning double solid fuel presents, above the oven (3) to burn wood, a water jacket (7), which surrounds the three sides of the stove, while inside this water jacket (7) there is a heat exchanger for hot water (8) domestic Above the furnace (5) loose solid fuel is find a small oven (9), which allows cooking meals hot and is fixed to the stove (1) with screws that allow a simple disassembly. This operation allows you to have a simple maintenance of the tube assembly and the walls of the water jacket, so that the stove will be highly effective and durable

The stove can also be made from an oven of loose solid fuel located at the bottom and the oven to burn wood located above the fuel oven solid loose. The water jacket (7) can be replaced by a heat exchanger used to heat the air. Can even replace the water heat exchanger (6) with a air heat exchanger.

The combustion smoke is emitted through a tube connected to the stove and is built with the technique habitual.

Claims (8)

1. Stove for burning double solid fuel composed of an oven (3) for burning wood and a furnace (5) of loose solid fuel, located one above the other characterized in that it is also composed of a plate containing a heat exchanger (6) which protects the oven located above, a small oven (9) for cooking hot meals, and a heat exchanger (7) used for central or room heating. 2. Stove (1) for burning double solid fuel according to claim 1 characterized in that the furnace (3) for burning wood is placed below the furnace (5) of loose solid fuel located above. 3. Stove (1) for burning double solid fuel according to claim 1 characterized in that the furnace (3) for burning wood is placed above the furnace (5) of loose solid fuel located below. 4. Stove (1) for burning double solid fuel according to claim 1 characterized in that the heat exchanger (7) for central or room heating forms an air envelope surrounding the walls of the same stove (1 ). 5. Stove (1) for burning double solid fuel according to claim 1 characterized in that the heat exchanger (7) for central or room heating forms a water jacket that surrounds the sides of the same stove (1 ). 6. Stove (1) for burning double solid fuel according to claim 1 characterized in that the heat exchanger (6) protecting the furnace (5) located above is an air-water heat exchanger. 7. Stove (1) for burning double solid fuel according to claim 1 characterized in that the heat exchanger (6) protecting the furnace (5) located above is an air-air heat exchanger. 8. Stove (1) for burning double solid fuel according to claim 1 characterized in that the small stove (9) for cooking can be removed.