RU2652214C1 - Bath furnace - Google Patents

Abstract

FIELD: heat engineering.

SUBSTANCE: invention relates to heat engineering, in particular to the construction of electric furnaces for a bath. Bath furnace contains a closed housing and a door. In this case, the interior of the body includes a chamber, in which there are heat transferring heat-accumulating elements of two types and electric heating elements with the possibility of excluding direct contact between them. Case is made of ceramic bricks and/or faience. First type of heat-transfer heat-accumulating elements is located in layers and perpendicular to each other, and the second type of heat-transfer heat-accumulating elements is located chaotically over heat-transfer heat-accumulating elements of the first type.

EFFECT: increased operational reliability of the furnace.

4 cl, 4 dwg

Description

FIELD OF TECHNOLOGY

The invention relates to heat engineering, and in particular to designs of electric furnaces for a bath. The heat-accumulating stone sauna stove on electricity is a heat heater designed for operation in a steam bath of the Russian bath and providing the traditional thermal and humidity regime of the Russian bath.

BACKGROUND

The prior art furnace for a bath and a sauna (RU 13688 U, 10.01.2000) D1, containing a metal housing, in the lower part of which there is a heater, above which there is a heater in the form of a container filled with a heat-resistant material and open on one side for heat release and steam to the room.

The disadvantage of this design is the uneven heating of the room, resulting in a large temperature difference between the floor and the ceiling of the steam room. This drawback can be dangerous to humans and lead to thermal injuries.

A bath furnace (RU 2429419 C2, 09/20/2011) D2 is known from the prior art, comprising a vertically oriented metal case with a furnace and air supply channels to the combustion zone, a door installed in the case, an exhaust pipe, a container with coarse-grained heat-exchange material interacting with elements limiting the combustion zone.

The disadvantage of this design is that the furnace body is made of metal, and therefore cannot keep the temperature of the furnace for a long time and it is necessary to constantly add fuel to the furnace to maintain a high temperature. Also, the constant addition of fuel leads to the formation of combustion products in the form of carbon dioxide and carbon monoxide, which is dangerous for humans. Excessive accumulation of these gases can lead to serious poisoning or death.

The design of the sauna stove D2, was selected by the applicant as the closest analogue to the claimed device.

SUMMARY OF THE INVENTION

Creating a real Russian bath in places where it is not possible to make a traditional wood-fired stove or gas, or if it is not possible to build a chimney pipe for a stove, for example, in a city, is one of the most difficult tasks at present. This problem is caused by the fact that the use of traditional fuels, such as firewood, is a non-ecological, dangerous and inaccessible type of fuel in the city.

The objective of the claimed invention is to eliminate the above disadvantages and create a furnace, the design of which will allow you to create climatic parameters, as in a steam room, this "Russian bath".

The technical result, which the claimed invention is directed to, is to increase the safety and operational reliability of the furnace, while improving the quality of climatic parameters of a steam room similar to a steam room of a traditional “Russian” bath, which helps to improve the health of a person and improve his physiotherapeutic parameters.

The specified technical result, to which the claimed technical solution is directed, is achieved due to the fact that the bath furnace containing a closed housing and a door characterized in that the inner part of the housing includes a chamber in which heat-transfer heat-accumulating elements of two types and electric heating elements are located with the possibility of eliminating direct contact between them, while the body is made of ceramic brick and / or faience, the first type of heat transfer heat-accumulating elements is located It is surrounded by layers and perpendicular to each other, and the second type of heat transferring heat-accumulating elements is located randomly on top of the heat-transferring heat-accumulating elements of the first type.

In the bath furnace, the first type of heat transferring heat-accumulating elements is made of heat-resistant cast iron.

In the sauna furnace, the second type of heat transferring heat-accumulating elements is made of polished and / or tarnished jade and / or faience and / or heat-resistant concrete.

In the sauna oven, the interior of the housing is divided into two chambers by means of a grill.

BRIEF DESCRIPTION OF THE DRAWINGS

In FIG. 1 shows a front view of a sauna stove in section, with reference numbers:

1 - Case;

2 - the door;

3 - Camera;

4 - Heat transfer heat accumulating elements of the first type;

5 - Heat transfer heat accumulating elements of the second type;

6 - Electric heating elements.

In FIG. 2 shows a variant of the sauna stove in front in section, with reference numbers:

7 - The first camera;

8 - The second camera.

In FIG. 3 shows a sectional side view of the sauna stove. In FIG. 4 is a cross-sectional top view of a bath furnace.

DETAILED DESCRIPTION OF THE INVENTION

The claimed invention contains a housing (1) made of ceramic brick and / or heat-resistant concrete and / or stone and / or ceramics and / or faience. The walls of the housing (1) can be made of one material or can combine several materials at once. In the side of the housing (1) there is a door (2) for dispensing steam. The door (2) can be made of cast iron, a combination of materials, decorative lining made of stainless steel, copper, etc. is possible. The upper part of the housing is open or closed. The inner part of the housing (1) contains a chamber (3), in which are located heat transfer heat-accumulating elements (4, 5) and electric heating elements (6). The inner part of the housing (1) can be divided into two chambers (7, 8) with a heat-resistant grill (not shown in the figures). In the first chamber (7) (steam feed chamber), heat-transferring heat-accumulating elements are located (5, 6).

Heat transferring heat storage elements can be divided into two types (4, 5) of heat transferring heat storage elements. The first type of heat-transferring heat-accumulating elements (4) is laid in layers perpendicular to each other. The second type of heat-transferring heat-accumulating elements (5) is randomly laid on top of the heat-transferring heat-accumulating elements of the first type. The heat transfer heat accumulating elements of the first type (4) can be made of heat-resistant cast iron, porcelain, earthenware, natural and / or ceramic stone, heat-resistant concrete, cast iron castings, usually of cylindrical shape. The heat-transferring heat-accumulating elements of the second type (5) can be made of polished or tacked jade stones, heat-resistant cast iron, porcelain, earthenware, natural and / or ceramic stone, and heat-resistant concrete. Heat-conducting heat-accumulating elements can have a cylindrical shape with flats, and stacked in layers at an angle of 90 degrees to each other, and are made of heat-resistant cast iron. This form is quite convenient to cast and closer to the ball, i.e. heats up faster and gives off heat longer. The resource of such a heat-conducting heat-accumulating element is several times greater than when using ordinary gray cast iron or only stone. Castings and stones are placed in the chamber (3) in a certain order so that air freely passes between them. In the first (7) and / or second chamber (8), electric heating elements (6) are located. As electric heating elements (6), heating elements or spirals made of heat-resistant alloys, for example, nichrome or fechral, can be selected. Also, plates or wire of round or rectangular cross section can be used as electric heating elements. Electric heating elements (6) are intended for heating heat-transferring heat-accumulating elements (4, 5) and the housing (1).

Heat transfer heat accumulating elements (5, 6) and electric heating elements (7) are located with the possibility of eliminating direct contact between them.

The principle of operation of the stove-heater is traditionally based on direct heating of heat-transferring heat-accumulating elements (4, 5) to a hot state, which makes possible the formation of light steam throughout the entire time of taking bathing procedures (formed with a characteristic cotton due to the fact that the volume of water instantly turns into the volume is approximately 600 times greater than the volume of supplied water), and the heat stored in the furnace body (1) is sufficient for bathing procedures. Also, the inner walls of the chambers are involved in the process of vaporization.

During the adoption of bathing procedures, the electric heating elements (6) are turned off, so they do not experience shock heat exchanges when water is supplied to heat transferring heat-accumulating elements (4, 5), which leads to an increase in the durability of electric heating elements (6) and does not pose a direct threat to human life from damage electric current, i.e. This furnace is a variable-action furnace.

From the point of view of heat engineering, the main task of the sauna stove is to heat-transfer heat-accumulating elements located in the steam supply chamber to a temperature of at least 400 degrees Celsius and not more than 1000 degrees Celsius. Then, when water splashes onto heat-transferring heat-accumulating elements through the door, instantaneous vaporization occurs, steam rushes to the ceiling of the steam room and then gradually descends to the people in the steam room. Due to the high vaporization rate, the vapor is very finely dispersed, “light” (according to human sensations). High temperatures characteristic of the kindling mode of the furnace dictate the use of refractory bricks in the design of the furnace, not only for the furnace, in which the electric heating elements are located, but also for the steam supply chamber, where the heat-transmitting heat-accumulating elements are located. For the furnace body, the use of heat-resistant materials is necessary, because ordinary brick will not withstand either such high temperatures or a large number of sharp heat changes, and will be destroyed faster. Similar restrictions apply to electric heating elements, which must be heated up to 1200 degrees Celsius, at the same time serve for several years in daily operation (kindling or flooding). The heat-transferring heat-accumulating elements must have a sufficiently large mass so that in the process of multiple surrenders of steam during the working session of the steam room, they retain the ability to instant steam formation. Otherwise, the heat-transferring heat-accumulating elements will cool down and lose the ability to produce “light” steam. The mass of heat-transferring heat-accumulating elements can be calculated based on the operating parameters of the furnace and steam bath. The wall thickness of the bath furnace is calculated so that the surface of the furnace is heated within a safe range for humans to avoid burns from accidental contact.

The presence of people in the steam room during the bathing session, along with high energies when heating the heat-transferring heat-accumulating elements, requires a separation in time of the kindling and flooding mode with the steaming mode. If the furnace will have a sufficiently large (stone, brick) mass, the heat-transferring heat-accumulating elements will be well insulated, the thickness of the brick walls of the furnace will ensure uniform and smooth heat exchange of the furnace body with the steam room, the usual temperature in which will be in the range of 60-80 degrees Celsius - without the need to heat the stove in the presence of people in the steam room. Thus, the soaring process will be safe for people.

The heated stone mass of the furnace communicates the bulk of the heat with the steam by radiant transfer, while the air circulation in the steam is minimal. In a steam room of a real Russian bath, thermal equilibrium is established, the temperature difference between the floor and ceiling does not exceed 15 degrees Celsius, it is comfortable to be in such a bath due to the unique microclimate parameters, which is confirmed by the centuries-old experience of using the Russian bath and the results of laboratory studies using the Vernon sphere.

Claims (4)

1. Sauna furnace, comprising a closed housing and a door, characterized in that the inner part of the housing includes a chamber in which are located heat transfer heat-accumulating elements of two types and electric heating elements with the possibility of eliminating direct contact between them, while the housing is made of ceramic brick and / or faience, the first type of heat transferring heat-accumulating elements is arranged in layers and perpendicular to each other, and the second type of heat-transferring heat-accumulating elements is located randomly on top heat transfer heat accumulating elements of the first type. 2. Sauna furnace according to claim 1, characterized in that the first type of heat transferring heat-accumulating elements is made of heat-resistant cast iron. 3. Sauna furnace according to claim 1, characterized in that the second type of heat transferring heat-accumulating elements is made of polished and / or tarnished jade and / or faience and / or heat-resistant concrete. 4. The bath stove according to claim 1, characterized in that the inner part of the housing is divided into two chambers by means of a grill.

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