RU182713U1 - Kamenka furnace "Sanduny" - Google Patents

Abstract

The invention relates to devices for generating steam and heating a room, in particular to sauna stoves.

The “Sanduny” stove-furnace includes a brick refractory masonry with a filler chamber with a loading window, a furnace with arches in the form of arches, a gas burner and a flue gas exit channel, while furnace arches in the form of arches are made with at least one brick insert - a spacer between them, mounted perpendicular to the arches of the trenches. Brick spacer inserts between the trenches are made opposite each other in the form of a solid straight line. Spacer inserts between the trenches are made built into the arches during their laying. The arches of the furnace and the spacer inserts between the trenches are made of refractory bricks of grade Ш No. 48.

The presence of spacer inserts between the arches of the trenches allows to increase the life of the furnace and reduce the cost of material and labor resources.

Currently, the company has developed technical documentation, carried out experimental laying of the furnace with spacer inserts between the arches of the trenches, which has shown positive results.

Description

The invention relates to devices for generating steam and heating a room, in particular to sauna stoves.

Known stove according to the patent of the Russian Federation for utility model No. 49191 "Combined sauna stove ..." having a heat-intensive container with rotation, including a furnace, container, bypass, while the transformable container at the inlet of the smoke stream is equipped with a multi-slot valve that moves along the container in the direction of the bypass blocked by the door, on an identical multi-slit bottom surface with slots across the container, a door is installed at the outlet of the smoke from the container, permeable to smoke and stones are suspended across the container nd oppositely rotated on the central axes of the two drums with blades, in addition to the container introduced air from the air preheater as the natural circulation circuit. In a container with drums for immersion and lifting from the grate, stones, porcelain or cast-iron ingots in the form of balls are placed at the bottom of the stones.

The disadvantages of the known furnace include the complexity of the design and low technological capabilities associated with the reliability of the furnace for a long time.

Known bath furnace, in which cast iron is used as filler (ingots), laid crosswise with gaps between the bars. To maintain even high air temperature and good evaporation of the liquid splashed onto the iron bars, it is extremely important to observe some conditions - that all the heating elements (cast iron bars (ingots) in the heater will be the same. When using stones, this is difficult to achieve even if they are laid correctly. Stones, those farther away from the heat source, giving off energy in contact with water, will heat up more slowly. Cast iron, unlike stones, warms up evenly. Thus, it is easy to protect yourself from danger "raw steam, which does not bring either benefit or pleasure. 1. Stones loaded into the furnace have a density lower than cast iron ingots and heat up faster than cast iron, but at the same time, the accumulated heat is much less than the accumulated heat from cast iron ingots, heating to the same fixed temperature Stones loaded into the furnace have a density lower than cast iron ingots and heat up faster than cast iron, but at the same time, the accumulated heat is much less than the accumulated heat from cast iron ingots, provided that it is heated to one In the same fixed temperature. In this case, heat transfer upon receipt of steam is much higher. As for the service life, stones are noticeably inferior to cast iron products several times.

In this case, heat transfer upon receipt of steam is much higher. As for the service life, stones are noticeably inferior to cast iron products several times.

The heat capacity of cast iron is about three times higher than the heat capacity of ordinary natural stone, which is often used as a glow element in a heater. In fact, this means that with the same volume of the heater, when using cast-iron stones, you can steam up without putting firewood in the furnace, three times longer, see http://gornilo.narod.ru/Image/Bolvan_300h.jpg, the photo is attached - prototype .

Special technologies make cast iron “stones”, whether cores, ingots or coins, resistant to water. That is why such fillers for the furnace, even after many years, are not covered by rust and when heated they do not emit foreign substances into the air. Such a filler is absolutely safe for allergy sufferers and is a guarantee of getting a "light steam" in the bath. Due to the higher heat transfer of cast iron, the attendant receives significantly greater freedom in adjusting humidity and temperature in the steam room than with any natural stone. Thus, bath procedures proceed with a milder effect on the human body.

The disadvantages of the known prototype furnace include low technological capabilities associated with the possibility of thermal and mechanical movement of the arches in the vertical plane and their destruction, including under the influence of the weight of the filler.

The technical result of the proposed invention is to eliminate the disadvantages of the prototype furnace, in particular, to increase the technological capabilities of the furnace, ensuring more reliable operation of the furnace with increasing the resistance of the arches of the furnace.

The technical result is achieved by using a combination of well-known features common to the prototype, including brick refractory masonry with a filler chamber with a loading window, a furnace with trenches in the form of arches, a gas burner and a flue gas exit channel, and new features, namely, that the furnace trenches are in the form the arches are made with at least one brick insert-spacer between them, mounted perpendicular to the arches of the trenches.

Brick spacer inserts between the trenches are made opposite each other in the form of a solid straight line.

Spacer inserts between the trenches are made built into the arches during their laying.

The arches of the furnace and the spacer inserts between the trenches are made of refractory brick, grade No. 48 .;

The novelty of the proposed technical solution is the implementation of the furnace trenches in the form of arches, with at least one brick insert-spacer between them, mounted perpendicular to the arches of the trenches.

Thus, the implementation of the furnace trenches in the form of arches with at least one brick spacer insert between them mounted perpendicular to the arches of the trenches reduces the transverse thermal displacements of the arches and thereby prevents their destruction, increasing the life of the furnace as a whole.

The signs of the implementation of brick spacer inserts between the trenches opposite each other in the form of a solid straight line, the implementation of the spacer inserts between the trenches embedded in the arches during their laying and the execution of the furnace arches and the spacer inserts between the trenches of fireproof brick of grade No. 48 are signs additional, aimed at a more complete disclosure of the main features and to achieve the technical result set by the proposed useful model.

Thus, the implementation of spacer inserts between the trenches embedded in the arches during their laying allows you to connect the spacer inserts with the body of the arches and thereby increase the reliability and resistance of the trench arches to thermal stresses.

According to the patent information research, a combination of the proposed well-known and new features of the proposed utility model in the patent and scientific literature is not found, which allows attributing the features to novelty.

Since the proposed combination of features is not known from the existing level of technology and allows to obtain a higher technical result, the proposed essential features can be recognized as meeting the criterion of inventive step.

A description of the implementation of the proposed device with the indicated features allows you to attribute the device and features to industrially feasible.

In FIG. 1 schematically shows a General view of the proposed stove-stove "Sanduna".

In FIG. 2 schematically shows the location of the spacer inserts in the form of two solid lines with respect to the arches of the furnace trenches.

The stove-stove consists of masonry 1 with a loading window 2 and a filler made in the form of layers formed by their cast iron ingots 3 of different diameters, the upper surface of which is formed by the upper layer of cast iron ingots with a diameter obtained made with an inclination angle to the loading window of 10-15 degrees. The furnace filler is laid on the trenches 4 made in the form of an arch, between which the spacer inserts are made 5. Under the arches of the trenches 4, a furnace 6 with gas burners 7 and a blowing fan 8 is made.

The proposed stove "Sanduny" works as follows:

After laying the filler on the trenches of arches with an angle of inclination of the upper surface of 10-15 degrees, they begin to heat the filler, cast-iron ingots. To do this, using a mixing burner 7 with forced air supply for combustion by a blowing air fan 8, the filler is heated. The termination of the burners is determined by the temperature field of the surface of the pig-iron ingots inside the furnace. The maximum temperature in the furnace is determined depending on the time of the year and is no more than 850 degrees C. Based on the above, a temperature of 850 degrees on the surface of the filler (pig-iron ingots with a diameter of 50 mm) is an indirect indicator of the heating of the shants and the combustion chamber.

The filler is heated for 9-10 hours a day. To ensure the operation of the furnace the next day, the ignition of the burners is carried out, for example, at 22 hours. At 7.0 hours, the operation of the burners is stopped and the stove is allowed to stand until the temperature starts to work. If the operating mode of the furnace is different, then the furnace mode of the furnace is adjusted.

To optimize thermal processes for heating the furnace filler (cast iron ingots) and to increase the life of the furnace and to prevent premature slagging of iron ingots, at high temperatures in the combustion zone, the top of the charge of ingots is heated to 850 degrees. During periodic heating and cooling of the filler and the furnace as a whole, the arches of trenches heavily loaded with filler are subjected to thermal stresses, which quickly break down and collapse from this thermal mode of operation. The presence of spacer inserts 5 between the arches of the trenches 4 prevents thermal oscillations of the arches to the sides and as a result increases the service life of the arches and the furnace as a whole.

The implementation of the brick inserts-spacers between the trenches opposite each other in the form of a solid straight line provides reliable retention of the arches of the trenches from thermal vibrations to the sides. The implementation of the spacer inserts between the trenches embedded in the arches during their laying increases the reliability of their work, ensures their constant reliable retention in a fixed place and prevents them from falling out of the chain of spacer inserts. The implementation of the arches of the furnace and the inserts-spacers between the trenches of refractory bricks of grade Ш No. 48 increases the life of the furnace.

Currently, the enterprise has developed technical documentation, carried out an experimental laying of trenches arches with spacer inserts, which showed positive results during testing.

Claims (4)

1. Kamenka furnace “Sanduny”, including brick refractory masonry with a filler chamber with a loading window, a furnace with arches in the form of arches, a gas burner and a flue gas exit channel, characterized in that the arches of the furnace in the form of arches are made of at least , with one brick insert-spacer between them, mounted perpendicular to the arches of the trenches. 2. A stove-stove according to claim 1, characterized in that the brick spacer inserts between the trenches are made opposite each other in the form of a solid straight line. 3. A stove-stove according to claim 1, characterized in that the spacer inserts between the trenches are made embedded in the arches during their laying. 4. The Kamenka furnace according to claim 1, characterized in that the arches of the firebox of the insert-spacer between the trenches are made of refractory brick of grade No. 48.

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