RU199466U1 - HEATING OVEN - Google Patents

Abstract

The utility model relates to the field of heat power engineering, in particular, to devices for heating the internal space of premises, for cooking and heating food, runs on wood and briquettes. A heating and cooking stove, consisting of a metal body formed of steel sheets and metal convection pipes protruding into the firebox, a combustion chamber, a cast-iron grate, an ash pan with a scoop, a sealed door, a hob, a chimney pipe, a bump tooth, characterized by which contains: an air divider located in the upper part of the combustion chamber and contributes to the afterburning of flue gases, a second combustion chamber for circulation and afterburning of flue gases in the upper part of the furnace above the air divider and a third combustion chamber located at the rear of the furnace for circulation and discharge of gases into chimney branch pipe located at the bottom of the rear wall of the furnace, while the chimney branch pipe is equipped with a gate for regulating the intensity of draft, equipped with air supply channels made in the form of an air supply regulator in the door, an air channel in the ash pan that regulates the intensity of fire and an air supply channel consisting of an opening at the bottom of the furnace and metal a box, through which air is supplied through the baffle tooth into the hearth combustion divider.

Description

The utility model relates to the field of heat power engineering, in particular, to devices for heating the internal space of premises, for cooking and heating food, runs on wood and briquettes.

A device according to US Patent N 4230090 A, 10/28/1980 by Eric Darnell is known from the prior art, in which, as in the claimed utility model, the furnace body is formed by convection pipes, there is a main combustion chamber and a second one, in the upper part of the furnace.

The disadvantage of the known device is:

- the absence of grates and air supply from the ash pan (grate combustion system) and, as a consequence, - the likelihood of burnout of the bottom and inconvenience in cleaning the furnace, and

- absence of a third combustion chamber in the rear part of the furnace for additional circulation of flue gases and, as a result, - high temperature of gases outgoing into the chimney.

In the claimed utility model, the presence of grates and air supply from the ash pan (grate combustion system) provides such advantages as:

- rapid heating of the body due to the high temperature and intensity of fuel combustion due to the large air flow into the very hearth,

- there is no probability of burnout of the furnace bottom, because fuel combustion occurs on a cast-iron grate, which is a replaceable consumable part, which reduces the load on metal parts and prolongs the life of the furnace,

- ash is poured through the grate into an ash pan, which is removed and emptied with ease, i.e. advantage in maintaining / cleaning the oven.

In the claimed utility model, the presence of a third combustion chamber 5, located in the rear of the furnace, due to the additional turnover of flue gases occurs:

- maximum additional removal of energy from the walls of the furnace,

- lowering the temperature of the flue gases entering the chimney, which reduces the load on the chimney and prolongs its service life,

- the emission of harmful flue gases into the atmosphere is reduced

From the prior art, a device is known according to RF patent N 2242679, class. F24B, published: 20.12.2004 Bull. No. 35, which is characterized as convection, inside the body of which the convection pipes are protected, there is a grate and air supply from the ash pan (grate combustion system).

The disadvantage of the known device is:

- the absence of a flame baffle tooth, which prevents the flame from entering the chimney, and, as a result, - a high temperature at the exit from the furnace and

- the smallest removal of useful energy from the flame, because there are no additional combustion chambers (second and third), which contribute to additional circulation of burning gases.

A heating and cooking stove, consisting of a metal body formed of steel sheets and metal convection pipes protruding into the furnace, a combustion chamber, a grate cast iron grate, an ash pan with a scoop, a sealed door, a hob, a chimney pipe, a chimney tooth, characterized by which contains: an air divider located in the upper part of the combustion chamber and contributes to the afterburning of flue gases, a second combustion chamber for circulation and afterburning of flue gases in the upper part of the furnace above the air divider and a third combustion chamber located at the rear of the furnace for circulation and discharge of gases into chimney branch pipe located at the bottom of the rear wall of the furnace, while the chimney branch pipe is equipped with a gate for regulating the intensity of draft, equipped with air supply channels made in the form of an air supply regulator in the door, an air channel in the ash pan that regulates the intensity of fire and an air supply channel consisting of an opening at the bottom of the furnace and metal a box, through which air is supplied through the baffle tooth to the hearth combustion divider.

The technical result of the utility model is an increase in the efficiency of the heating and cooking stove, combining in one heating device the possibilities and fast and long-term heating of premises with the possibility of cooking while reducing the emission of harmful gases, while reducing the heat load on the chimney, while significantly saving fuel and time for maintenance ...

This technical result is achieved by a combination of design features of the furnace. A sectional diagram of the furnace is shown in figure 1 and figure 2, a general view of the furnace is shown in figure 3, the positions indicate the following structural elements:

1 - stand,

2 - gate,

3 - chimney pipe,

4 - gate handle,

5 - third chamber,

6 - air supply channel,

7 - air divider,

8 - convection pipes,

9 - hob,

10 - second chamber,

11 - tooth-chipper of the flame,

12 - door,

13 - air supply regulator,

14 - combustion chamber,

15 - cast iron grate,

16 - ash pan air channel,

17 - ash box with scoop

Fast heating is achieved due to: the material from which the furnace is made - the steel heats up quickly, due to convection pipes, passing through which the air heats up from the bottom up, due to the grate combustion system, which provides additional thermal energy by supplying air to the combustion chamber from ash box scoop.

Long-term combustion (about 12 hours on one fuel tab) is achieved by shutting off the air supply to the combustion chamber and adjusting the draft in the smoldering mode using the hearth combustion divider 7 of the bump tooth 11.

The second chamber 10, located in the upper part of the furnace and the third chamber 5, located in the rear part of the furnace with a chimney pipe connected from the bottom, due to the additional turnover of flue gases ensure the afterburning of flue gases and maximum additional removal of energy from the walls and the upper and rear parts of the furnace, respectively , and, as a result, a decrease in the temperature and the amount of flue gases entering the chimney, which reduces the load on the chimney and prolongs its service life.

Due to the additional third chamber 5 and the chimney pipe 3 located at the bottom, an additional turnover of hot flue gases occurs, they, hitting the rear wall of the furnace, give maximum energy to the body and the less heated ones go through the pipe 3 into the chimney system (chimney), emission is reduced harmful flue gases into the atmosphere.

The heating and cooking oven works as follows.

Open the ash scoop 3-5 cm to allow air to enter through channel 16 and grate 15 into combustion chamber 14, open slide gate 2 by handle 4, also open regulator 13 for maximum air supply to combustion chamber 14. Open door 12 by the handle and in the combustion chamber 14 on the grate 15 we put finely chopped dry firewood, birch bark and paper, then we ignite the stored fuel and close the door 12. After the stove has melted, open the door 12 and put in still dry firewood and close the door 12. Adjust the intensity of the fire ash scoop 16 and regulator 13, the intensity of the draft is regulated by the slide gate 2 by the handle 4.

The flame bump tooth 11 prevents the direct passage of fire and creates an additional turnover of incandescent gases, thereby increasing the return of useful energy to the furnace body.

The hob 9 allows you to heat or cook food.

Most of the thermal energy is transferred to the convection pipes 8 that make up the furnace body and protrude into the furnace, due to the physical properties of air movement, the cold air flow is drawn into the lower part of the pipes and, while heating it, throws it up, effectively heating the room. Due to this design, the room heats up as quickly as possible. Due to the passage of air through the pipes of the housing 8, the metal is cooled and thereby the durability of the entire structure is increased.

The main air supply during prolonged combustion is the diffuser 7 through channel 6, this design allows you to maintain the most economical and efficient bottom (top) fuel combustion for a long period of time, about 12 hours, and also serves as afterburning of gases, which allows you to remove the maximum energy and reduce emissions.

The third chamber 5 and the lower connection of the flue pipe 3 help to reduce the temperature of the flue gases, which reduces the load on the flue and extends its service life. Due to this design, an additional turnover of incandescent flue gases takes place, they, hitting the rear wall of the furnace, give maximum energy to the body and the less heated ones go out through the pipe 3 of the smoke exhaust system (chimney) located below.

In the second chamber 10, gases are afterburned, as well as an additional transfer of thermal energy to the upper part of the furnace.

Thus, the technical result of the claimed utility model is achieved.

Sources of information:

1. Patent US Patent N 4230090 А, 28.10.1980 by Eric Darnell

2. RF patent N 2242679, class. F24B, published: 20.12.2004 Bull. No. 35

Claims (1)

A heating and cooking stove, consisting of a metal body formed of steel sheets and metal convection pipes protruding into the furnace, a combustion chamber, a grate cast iron grate, an ash pan with a scoop, a sealed door, a hob, a chimney pipe, a chimney tooth, characterized by which contains: an air divider located in the upper part of the combustion chamber and contributes to the afterburning of flue gases, a second combustion chamber for circulation and afterburning of flue gases in the upper part of the furnace above the air divider and a third combustion chamber located at the rear of the furnace for circulation and discharge of gases into chimney branch pipe located at the bottom of the rear wall of the furnace, while the chimney branch pipe is equipped with a gate for regulating the intensity of draft, equipped with air supply channels made in the form of an air supply regulator in the door, an air channel in the ash pan that regulates the intensity of fire and an air supply channel consisting of an opening at the bottom of the furnace and metal a box, through which air is supplied through the baffle tooth to the hearth combustion divider.

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