WO2001046623A1

WO2001046623A1 - Heating device and heating method

Info

Publication number: WO2001046623A1
Application number: PCT/FI2000/001116
Authority: WO
Inventors: Juha Markku Antero Taskinen
Original assignee: Juha Markku Antero Taskinen
Priority date: 1999-12-20
Filing date: 2000-12-20
Publication date: 2001-06-28
Also published as: FI106481B; AU2378501A

Abstract

The invention relates to a heating center, which comprises a stove (1, 2), containing a fire chamber, ash receptacle (4), a fire grate (5) within the fire chamber, the back wall (6) of the fire chamber, condensation piping (7) for the combustion gases, a fanning unit (8) to blow the air which is to be warmed into the heating center, an exit pipe (11) for the warmed air and a chimney (12). Furthermore, the invention relates to a method for heating the heating center. The stove housing (1, 2) of a heating center formed in accordance with the invention comprises two parts, and the space (13) between the housing (1, 2) is divided into several sections by partitions (14), and the fire grate (5) is made of pipes or corresponding components which are joined to the intermediary space (13) so that the air can be circulated in the sections of the intermediary space and through the fire grate in the fire chamber. According to the heating method, the fanning unit (8) blows pressurized air into the space (13), which is divided into segments, between the housing (1, 2), from the segment of the space (13) through the fire grate piping (5) and through the fire chamber to the other segment on the other side of the fire chamber, and the air is conducted from there through the exit pipe (11) for the heated air to the area being heated.

Description

HEATING DEV ] ££.AND HEATING METHOD

The invention relates to a heating center, which comprises a stove, containing a fire chamber, ash receptacle, a fire grate within the fire chamber, the back wall of the fire chamber, condensation piping for the combustion gases, a fanning unit to blow the air which is to be warmed into the heating center, an exit pipe for the warmed air and a chimney. Furthermore, the invention relates to a heating method for heating the heating center, according to the introductory section of the first method claim.

Heating centers designed for heating small areas are hardly made at all, because they are not economically profitable with today's technology. Such small spaces include, for example, machine rooms, different storage areas, greenhouses and corresponding production and work-related spaces where heat is needed.

The object of the invention is to eliminate this disadvantage and to provide a heating center, which is advantageous to build, easy to move and produces heat economically. Furthermore, the object of the invention is to provide a heating method, whereby it is possible to heat the circulated air in the heating center effectively and economically.

The object of the invention is accomplished with a heating center and heating method, the characteristics of which are presented in the claims.

The housing of the stove of a heating center formed in accordance with the invention has two parts; the space between the housings is divided into several sections by partitions, and the fire grate is formed out of pipes, or corresponding components, which are joined to the intermediary space, allowing air to circulate in the sections of the intermediary space, and through the fire grate in the fire chamber. This kind of heating center enables air to be circulated and heated effectively, as it is circulated in the intermediary space and through the fire chamber. Simultaneously, the air cools the heating center.

In an advantageous application of the invention, to the back part of the fire chamber, piping is mounted, which is joined to the intermediary space, allowing air to circulate in the back part of the fire chamber and in the intermediary space. Thus, air is warmed effectively.

In a heating method formed in accordance with the invention, the heating center is heated, which comprises a stove, which has a fire chamber, ash receptacle, a fire grate within the fire chamber, the back wall of the fire chamber, condensation piping for the combustion gases, a fanning unit to blow the air which is to be warmed into the heating center, an exit pipe for the warmed air and a chimney According to the method, the fanning unit blows pressurized air to the space, divided into segments, between the two housings, from one space segment, through the fire grate piping and fire chamber, to the other space segment on the other side of the fire chamber, and air is conducted through the warm air exit pipe into the room being heated By using this method, air can be effectively and economically heated, and at the same time, the heating center is kept cool

In an advantageous application of a method according to the invention, air is conducted through the piping of the back wall of the fire chamber before it is conducted through the exit pipe to the room which is being heated Thus, air can be heated in an even more economical way

In a further advantageous application of the method, the air is conducted through the space between the housings of the back wall to the corresponding lower segment of the space of the other side wall which space has been divided by a horizontal partition and from there, the air is blown pressurized into the fire grate piping and further to the lower intermediary space segment of the opposite side wall From the front area of the lower space segment, the air is conducted to the upper segment of the same wall, and from the back area of that segment, it is blown pressurized through the piping of the fire chamber's back wall and through the combustion gas condensation piping to the upper segment of the opposite side wall From this upper segment, the air is conducted through the exit pipe in the front of the segment to the room which is being heated

When the air being heated is circulated in a controlled way through the intermediary space, which is divided by partitions and formed from the stove's double-housing, and through the stove piping, fuel use becomes very efficient The heating center is used outside of the area being heated, whereupon the combustion gases can be removed through a light-weight chimney and a boiler room is not necessary If necessary, many areas can be heated using the same heating center The apparatus is generally delivered as a compact package, in other words, the package contains all components necessary for operation, such as a lightweight chimney, fan duct and operating automatics The apparatus is, regarding its size and structure, such that it is easy to move to different sites of operation by using conventional moving apparatus, such as a truck or the correspondent Wheels can also be mounted on the apparatus, whereupon it can be used as a trailer The location and compact structure are not limited in any way, and they can vary according to different applications of the invention With an apparatus which uses chips, it is characteristic for some of the produced hot air be used to dry the wood chips, which are to be burned, before the burning process This method improves the efficiency of wet wood chips.

Functionally, the objective of the heating center is to produce advantageous heat energy primarily from solid fuels. In the burning process, burning transpires at high temperatures, thus, the material being burned need not be dry

Heat is transferred directly into the air, which cools the housings of the heating apparatus, as well as other eventual heating surfaces This heated air is conducted along the air ventilation duct to the area being heated. The burning process is conducted in a controlled way using thermostats and an extinguishing system

The flow of the cooling air is directed, such that the flow technique enables the effective cooling of all of the parts of the heating apparatus. As a result, the apparatus can also produce high temperatures (even in excess of 300°C) without the surface temperatures of the apparatus' inner surface rising too high

The stove is structured, such that it has two housings, the space between the inner and outer housing is generally divided into segments, in which the coolant air is circulated by excess pressure, whereupon all areas are effectively cooled The fire grates are made out of steel pipe, the form of which is undefined Air is also conducted through the fire grate pipes, whereupon they too are effectively cooled

Air is circulated by the fan inside the housing segments and the fire grate pipes until the desired temperature is attained, after which the air is blown into the area which is being heated The outside of the outer housing is generally insulated with thermal insulation, which is covered by an upholstered surface plate, or some other material

A heating center formed in accordance with the invention produces heat extremely quickly as a result of the effective air circulation and the combustion temperature is so high, that burnable material, which causes difficulties when burned in a traditional stove, can be burned in it.

The service life of the fire grate and the back wall of the fire chamber, which are constructed out of pipes, is several times longer than that of conventional ones, because the air flowing through the pipes reduces their temperature The invention will now be described in more detail with reference to the accompanying principle drawings, in which

Figure 1 illustrates a horizontal side section view of a certain heating center formed according to the invention, and Figure 2 illustrates a vertical end section view of a heating center in accordance with Figure 1

A heating center formed in accordance with the figures comprises an inner housing 1 for the stove, a thermally insulated outer housing 2 for the stove, a hatch 3 for the stove, an ash receptacle 4, fire grate piping 5 at the bottom of the fire chamber, the back wall piping 6 of the fire chamber, condensation piping 7 for combustion gases, a fanning unit 8, a control center 9, fire chamber air regulator 10, an exit pipel 1 for the heated air, and a chimney 12 There is intermediary space 13 between the inner housing 1 and outer housing 2, and it is divided into sections 14 by partitions, such that the intermediary space 13 between the ceiling and each wall is separated into segments and, furthermore, the space 13 formed at the side walls is divided on both sides by horizontal walls 14 into a lower and an upper segment The fire grate piping 5 extends from one side of the housing to the other, and it is designed to convey air from one side to the other through the fire chamber from one segment of space to another The condensation piping 7 for the combustion gases is mounted at the back part of the fire chamber, and it is also designed to convey air from one side to the other through the fire chamber from one segment of space to another

The heating center operates, such that after a fire has been lit, the fanning unit is activated and blows the air, which is being heated, into the space 13 between the two housings 1 and 2, to the front part of the stove ceiling The air is conducted around the stove through holes in the partitions 14, such that the temperature within the entire area is uniform and the combustion temperature is high in every place in the fire chamber The air is conducted from the ceiling of the stove through a hole in the partition 14 (in this example, in the left edge) to the back wall, from where it is conducted to the lower segment on the right side wall The air can be evenly conducted from the lower segment to the fire grate piping 5 by creating a sufficient resistance flow using the cross-sectional surface area of the piping The air, having been led through the fire grate piping 5 to the lower segment of the left side wall, is conducted to the upper segment of the left side through a hole in the front part of the partition 14 From there, the air is conducted to the back part of the wall, from where a change in flow resistance causes the air to flow evenly through the piping 6 of the fire chamber^'s back wall and through the combustion gases' condensation piping 7, to the upper segment of the right wall, and further through the exit pipe 1 1 for the heated air, located in the front end of the upper segment, to the area being heated The initial heated air is generally conducted pressurized from a fan to the stove Heating centers are generally equipped with an extinguishing system, in which, after the motor is shut down, the closing plates shut the chimney and air supply channels, whereupon the fire is extinguished in a few minutes Protection plates, which are made of thick steel sheet, are generally used in the lower parts of the fire chamber Their purpose is to increase the temperature of the burning process, because they do not become properly cooled The sheets rest against the wall of the fire chamber and simultaneously protect the housings from extreme heating

The invention is not limited to the foregoing illustration It can vary, and different solutions can be made from it within the frames of the claims For example, the air circulation to the right or left can be changed according to the intended use

Claims

1 . A heating center, which comprises a stove (1 , 2), containing a fire chamber, ash receptacle (4), a fire grate (5) within the fire chamber, the back wall (6) of the fire chamber, condensation piping (7) for the combustion gases, a fanning unit (8) to blow the air which is to be warmed into the heating center, an exit pipe ( 1 1) for the warmed air and a chimney (12), characterized in that the stove housing (1 , 2) is in two parts, and the space ( 13) between the housings ( 1 , 2) is divided into several sections by partitions (14), and in that the fire grate (5) is made of pipes or corresponding components, which are joined to the intermediary space ( 13) so that the air can be circulated in the sections of the intermediary space and through the fire grate in the fire chamber.

2. A heating center formed in accordance with Claim 1, characterized in that piping (6) has been mounted to the back part of the fire chamber and it is joined to the intermediary space ( 13) in order to circulate the air in the back part of the fire chamber and in the intermediary space.

3. A heating method for heating a heating center, which comprises a stove (1, 2) containing a fire chamber, ash receptacle (4), a fire grate (5) within the fire chamber, the back wall (6) of the fire chamber, condensation piping (7) for the combustion gases, a fanning unit (8) to blow the air which is to be warmed into the heating center, an exit pipe ( 1 1 ) for the warmed air and a chimney (12), characterized in that the fanning unit (8) blows pressurized air into the space ( 13), which is divided into segments, between the housings ( 1 , 2), from the segment of the space (13) through the fire grate piping (5) and through the fire chamber to the other segment on the other side of the fire chamber, and in that the air is conducted through the exit pipe (1 1) for the heated air to the area being healed.

4. A heating method according to Claim 3, characterized in that the air is conducted through the back wall piping (6) of the fire chamber before it is conducted through the exit pipe to the area being heated.

5. A heating method according to Claim 3 or 4, characterized in that the air is conducted through the condensation piping (1 1) for the combustion gases before it is conducted through the exit pipe to the area being heated.

6. A heating method according to any of Claims 3-5, characterized in that the air is conducted through the space ( 13) between the housings (1, 2) of the back wall to the corresponding lower segment of the space (13) of the other side wall, which space has been divided by a horizontal partition (14), and from there, the air is blown pressurized into the fire grate piping (5) and further to the lower segment of the intermediary space (13) of the opposite side wall. From the front area of the lower space segment, the air is conducted to the upper segment of the same wall, and from the back area of that segment, it is blown pressurized through the back wall piping (6) of the fire chamber and through the combustion gas condensation piping (7) to the upper segment of the opposite side wall. From this upper segment, the air is conducted through the exit pipe in the front of the segment to the room which is being heated.