RU85610U1 - COMBINED STOVE FURNACE - Google Patents

Abstract

A combined stove-heater, the steel walls of which are double with the formation of a space between them, which acts as a water tank, containing a firebox with a vault and a grate, a heater with a heat storage load located above the gondola, an ash pan and a chimney located under the grate; A heater with a heat storage load and furnace walls is provided with a gap, characterized in that the furnace is made in the form of a volumetric metal structure and additionally has two front and rear of the furnace, a heat shield, the lower part of each of which is made in the form of a door mounted on a hinge, as well as two gas ducts located horizontally and parallel to each other and to the side walls of the furnace under the heat storage load, the heat storage heat sink has the shape of a parallelepiped with a truncated bottom sides, the furnace chamber has a triangular shape truncated from above, a water tank is located around the perimeter of the furnace and includes four containers connected to each other, two containers are located in the side walls nach furnace, the third tank is located in the front wall of the furnace in its upper part and is additionally equipped with a pipe that enters the chimney, the fourth tank is located in the rear wall of the furnace in its lower part.

Description

The utility model relates to thermal technology, namely: domestic stoves, and can be used for individual saunas and baths, heating various rooms and heating water.

Known furnaces for baths, containing fire chambers, heat storage heaters, steam generators, water tanks and additional smoke chambers as the main functional units (Levadny BC Baths and saunas. Construction and equipment. - M.: Adelant LLC, 2007, p.203 fig. .126, p.204, fig. 127).

The disadvantages of such furnaces are the small removal of steam and low thermal efficiency due to suboptimal use of the heat generated during the combustion of fuel in the furnace.

A known bath furnace is equipped with heat storage chambers placed at the side walls of the furnace and in the gas duct, and the water heater is equipped with an inclined pipe, one end of which is inserted into the side wall of the tank, and the other end is inserted into the furnace space through an opening in the furnace wall (US Pat. RF №2087806, publ. 08.20.1997).

The disadvantage of this furnace is the reduced thermal efficiency, due to the fact that due to the high speed of the gas flow in the chimney, flue gases exit the chimney without the release of thermal energy, overheating of which leads to fires.

Known furnace for baths (US Pat. RF No. 221909, publ. 06/10/2004) in the form of a metal three-dimensional structure with a narrowed along the entire length of the furnace firebox, divided into two parts by a horizontal partition with profiled openings and partitions with windows, thermal screens and a water heater.

The disadvantage of the furnace is the binding on the installation of the masonry walls of the steam room and the use of only gas as fuel.

Of the well-known furnaces for saunas and baths, the closest in technical essence is the Kamenka furnace designed by F.I. Martinkevich, whose steel walls are U-shaped and double, forming a space between them that acts as a water tank, containing a firebox with a vault and a grate, a heater with a heat storage load located above the gondola, an ash pan and a chimney under the grate , a gap was made between the heater and the walls of the furnace (Bathhouse. Sauna / Aut. - comp. L.S. Koneva, - M .: ACT; Minsk: Harvest, 2008, p. 60, Fig. 32).

The specified stove is quite simple, compact. However, it has drawbacks which are the insufficiently high fuel efficiency of the furnace, the increased humidity of the room when water boils in a tank, and the inability to control water heating and heating processes.

The technical result, which is achieved by the claimed utility model, is to increase the fuel economy of the furnace, regulate the time of heating the room and heat control load; elimination of thermal injuries and increased fire safety.

To achieve the specified technical result in a combined stove-heater, the steel walls of which are double with the formation of a space between them, acting as a water tank containing a firebox with a vault and a grate, located above the vault of a firebox with a heat storage charge, located under the grate , a chimney, moreover, a gap is made between the heat-accumulating heater and the walls of the furnace, the furnace is made in the form of a volumetric metal structure and it does have two heat shields located in front and behind the furnace, the lower part of each of which is designed as a door mounted on the hinge, as well as two flues located horizontally and parallel to each other and to the side walls of the furnace under the heat storage load, the heat storage heat sink has the shape of a parallelepiped with sides truncated from below, the fire chamber has a triangular truncated top shape, a water tank is located around the perimeter of the furnace and includes four containers connected to each other, two of them the bones are located in the side walls of the furnace, the third vessel is located in the front wall of the furnace in its upper part and is equipped with a pipe that enters the chimney, the fourth vessel is located in the rear wall of the furnace in its lower part.

Distinctive features of the proposed stove-heater from the above known, closest to it, are the following:

- the furnace is made in the form of a volumetric metal structure;

- additionally has two thermal screens located in front and behind the furnace, which helps prevent thermal injuries;

- the lower part of each heat shield is made in the form of a door mounted on a hinge, changing the opening angle of which they regulate the flow of heated air, thereby speeding up or slowing down the heating of a room or water;

- two gas ducts located under the heat storage load horizontally and parallel to each other and to the side walls of the furnace, which allows more fully use the heat of the flue gases;

- the heater with heat storage load has the shape of a parallelepiped with sides truncated from below, which increases the convective heating surface of the storage load;

- the furnace chamber has a triangular shape truncated from above, which increases the heat transfer area;

- a water tank is located around the perimeter of the furnace and includes four tanks connected to each other;

- two containers are located in the side walls of the furnace;

- the third tank is located in the front wall of the furnace in its upper part and is equipped with a nozzle that enters the chimney, due to which steam enters the chimney, cools it and reduces draft, thereby preventing overheating of the chimney, which increases fire safety, and allows regulate the combustion process and eliminates the ingress of unheated steam into the room;

- the fourth tank is located in the rear wall of the furnace in its lower part.

Due to the presence of these signs, the indicated technical result is achieved, namely: increasing the fuel economy of the furnace, regulating the time of heating the room and heat-regulating load; elimination of thermal injuries and increased fire safety.

The proposed stove is illustrated by the drawings shown in figures 1-4.

Figure 1 shows a front view, figure 2 is a top view, figure 3 is a side view, figure 4 is a General view of the stove-heater.

The combined stove-heater is made in the form of a volumetric metal structure and contains a firebox 1 with a door 2, an ash pan 3, a grate 4 (Fig. 1, Fig. 2). The combustion chamber 5 has a triangular shape, truncated from above (figure 1). A water tank is the space formed between the double walls of the furnace. This tank consists of four tanks connected to each other, namely: two tanks 6 in the side walls 7 of the furnace (or side tanks 6), one of them has a hole 8 for filling water, the third tank 9 is located in the front wall 10 in its upper part and is equipped with a pipe 11, the fourth container 12 is located in the rear wall 13 of the furnace in its lower part. The pipe 11 enters the chimney 14. Above the vault 5 of the furnace 1 there is a heater 15 with a heat storage load (stones) 16. The heater 15 has a parallelepiped shape with sides truncated from below, which increases the convective heating surface of the heat storage load 16. Between the heater 15 with a heat storage load 16 and the walls of the furnace made a gap 17. The gap 17 is necessary so that the water does not take away heat from the heat storage load 16. The combined stove-heater has two heat shields 18, 19. One heat shield 19 is located on the front wall 10 of the furnace, the second heat shield 19 is located on the rear wall 13 of the furnace. Thermal shields 18, 19 are necessary to ensure safety and prevent thermal injuries. The lower part of each heat shield 18, 19 is made in the form of a door 21 installed on the hinge 20. By changing the opening angle of these doors 21, the flow of heated air is regulated, thereby accelerating or slowing down the heating of the room or water. In the front wall 10 of the furnace under the third water tank 9 there is a ventilation hole 22, which has a shutter 23 (figure 3). Under the heat storage load 16 there are two gas ducts 24. The gas ducts 24 are arranged horizontally and parallel to each other and to the side walls 7 of the furnace (FIGS. 1, 2). Thanks to the flues 24, the heat of the flue gases is used more fully.

Combined stove-heater works as follows. The side tank 6 is pre-filled with water through the hole 8 for water inlet. Because all four containers - both side 6, front 9 and rear 12, communicate with each other, then they are gradually filled with water. Raise the door 21 of the heat shield 18 of the front wall 10 of the furnace, open the door 2 of the furnace 1 and put fuel on the grate 4 and set it on fire. The draft adjustment in order to optimize the combustion process is carried out by opening the ash pan 3 to the required amount. Hot flue gases, washing the vault 5 of the furnace 1 and passing through the flues 24, give part of the heat to the heat storage charge 16 and water. By adjusting the position of the shutter 23 of the ventilation hole 22 during the furnace, additionally regulate the draft, slowing down or accelerating the combustion process. In addition, by changing the opening angle of the doors 21 of the heat shield 18 on the front wall 10 and the heat shield 19 on the rear wall 13, the flow of heated air is regulated, thereby speeding up or slowing down the heating of the room or water. When boiling water in a water tank, steam from the third tank 9 through the pipe 11 enters the chimney 14, cooling it and thereby reducing draft, automatically regulating the combustion process and eliminating the ingress of unheated steam into the room of the bath or sauna.

The use of new elements in a combined stove-heater for saunas and baths distinguishes the proposed furnace from the known ones, as it allows:

- intensify heat transfer in the furnace and flue spaces;

- increase fuel efficiency of the furnace;

- adjust the time of heating the room and heat storage load;

- reduce thermal injuries; - increase fire safety.

Claims (1)

A combined stove-heater, the steel walls of which are double with the formation of a space between them, which acts as a water tank, containing a firebox with a vault and a grate, a heater with a heat storage load located above the gondola, an ash pan and a chimney located under the grate; A heater with a heat storage load and furnace walls is provided with a gap, characterized in that the furnace is made in the form of a volumetric metal structure and additionally has two front and rear of the furnace, a heat shield, the lower part of each of which is made in the form of a door mounted on a hinge, as well as two gas ducts located horizontally and parallel to each other and to the side walls of the furnace under the heat storage load, the heat storage heat sink has the shape of a parallelepiped with a truncated bottom sides, the furnace chamber has a triangular shape truncated from above, a water tank is located around the perimeter of the furnace and includes four containers connected to each other, two containers are located in the side walls nach furnace, the third tank is located in the front wall of the furnace in its upper part and is additionally equipped with a pipe that enters the chimney, the fourth tank is located in the rear wall of the furnace in its lower part.