RU208164U1 - SAUNA FURNACE - Google Patents

Abstract

The utility model is a further improvement of the well-established sauna stove (RU 204106 U1, 05/06/2021) and solves the technical problem of increasing the efficiency of its use by directing the main heat flow and the resulting steam in the required direction, regardless of the orientation of the sauna stove in the room. The technical result is an increase in the efficiency of using a bath stove due to the possibility of changing the direction of the main heat flow and the resulting steam by 360 °, as well as simplifying the means for this. , a grate, a loading door and a heat exchange element made in the form of an external wall and an internal cylindrical wall, limiting from the outside a through horizontally oriented cylindrical cavity, between which a channel for flue gases is formed along the entire width of the walls, which communicates with the chimney, while the heat exchange element is made of two cast semi-shells, united along the parting plane by a flange connection with the possibility of free installation rotation of the heat exchange element by 360 ° relative to the vertical axis of the flue gas outlet pipe, the parting plane being located along the axis of the furnace flue gas outlet pipe, and forming a joint a false inner wall of an element of a cylindrical steel insert, the ends of which are covered by the internal flanging of cast half-shells. In addition, cast semi-hulls are made with corrugations or longitudinal ribs on the outer surface, turning into stiffeners at the points of bolted connection of their flanges. And on the outer end surfaces of the cast semi-hulls, radially oriented corrugations or ribs are made. At the same time, the inner surface of the cast half-shells can be made with the possibility of placing a plug from one of its ends, a grate for forming a heater in the cavity limited by it, and a means for distributing water in the cavity for generating steam. 3 w.p. f-ly, 8 ill.

Description

The utility model relates to the field of household solid fuel heating stoves used for baths, in particular for generating steam.

The closest of the known is a bath stove, which includes a housing with an outlet for flue gases, a cavity for loading the generating steam when water is supplied to them with heat storage elements, a firebox, an ash pan, a grate and a loading door, the cavity for loading heat storage elements is made in the form of a hollow horizontally located cylinder, the outer surface of which forms channels with the body, tapering in cross-section along the hot gases, and the lower surface is a flame arrester, and the longitudinal axis of the hollow cylinder is perpendicular to the longitudinal axis of the longitudinal axis of the outlet pipe located at an equal distance from its ends (RU 204106 U1, 05/06/2021).

This technical solution is a further improvement of the well-proven sauna stove and solves the technical problem of increasing the efficiency of its use by directing the main heat flow and the resulting steam in the required direction, regardless of the orientation of the sauna stove in the room.

The technical result consists in increasing the efficiency of using the sauna stove due to the possibility of changing the direction of the main heat flow and the resulting steam by 360 °, as well as in simplifying the means for this.

This is achieved by the fact that the bath stove includes a body with a firebox and an outlet for flue gases, an ash pan, a grate, a loading door and a heat exchange element made in the form of an outer wall and an inner cylindrical wall, which limits from the outside a through horizontally oriented cylindrical cavity, between which along the entire the width of the walls is formed a channel for flue gases, communicated with the chimney, while the outer wall of the heat exchange element is made of two cast half-shells, combined along the plane of the connector by a flange connection with the possibility of free installation rotation by 360 ° of the heat exchange element relative to the vertical axis of the outlet for flue gases, and the plane of the connector is located along the axis of the outlet for flue gases of the furnace, and the inner cylindrical wall is made in the form of a steel insert, while the cast half-shells are made with an internal flange, covering the ends of the internal steel insert to form a solid inner morning cylindrical wall with a steel insert. In addition, the cast half-shells are made with corrugations or longitudinal ribs on the outer surface, turning into stiffeners at the bolted connection points of their flanges. And on the outer end surfaces of the cast half-cases, radially oriented corrugations or ribs are made. In this case, the inner surface of the cast half-shells can be made with the possibility of placing a plug from one of its ends, a grate to form a heater in the cavity, and a means for distributing water in the cavity to generate steam.

The materiality of the features is ensured by their focus on the implementation of the technical result. So, the implementation of the heat exchange element in the form of an external wall and an internal cylindrical wall, which limits from the outside a through horizontally oriented cylindrical cavity, between which a channel for flue gases is formed along the entire width of the walls, communicating with the chimney, provides intensive heating of the walls of the cavity by a flame with the highest temperature, as well as intensive heating of the heater backfill, if it is placed in the cavity. The implementation of the heat exchange element from two cast (preferably made of cast iron or steel) half-shells, combining them along the plane of the joint with a flange connection with the possibility of free installation rotation of the heat exchange element by 360 ° relative to the vertical axis of the outlet pipe for flue gases - allows you to freely orient the vector of the heat radiation of the furnace and direction steam, ensuring their effectiveness. The presence of flange connections in half-shells makes it possible to install a cylindrical wall, as a rule, made of a steel pipe and having a thickness less than the thickness of the walls of the cast half-shells, which ensures its more intensive heating and more efficient heat transfer through it. The presence of corrugations and ribs on the surfaces of the half-shells provides an increase in heat transfer due to a more developed surface, while also ensuring effective dissipation of the heat flux in space. The implementation of the inner surface of the cast half-shells with the possibility of placing a plug from one of its ends, a grate for the formation of a heater in the cavity bounded by it and a means for distributing water in the cavity for steam generation, is also aimed at increasing the efficiency of the furnace, since, together with other features, it allows you to change the direction not only heat flux, along and steam in the direction required by the user, regardless of the position of the oven in the room. Such a technical solution with the same features ensures the achievement of another positive technical result - a simplification of the design and its manufacturability, since the half-shells can be made structurally identical when they are symmetrically located in the furnace along the plane of the split in the flange connection.

The technical solution is illustrated by drawings, where:

- figure 1 shows a General view of the sauna stove in front;

- figure 2 - the same, side view;

- Fig. 3 - shows the stove in perspective view with a cutout ¼

- Fig. 4 is a front view of the assembled half-case;

- figure 5 is the same, side view;

- figure 6 is the same, top view;

- Fig. 7 is a flange joint assembly according to A in Fig. 6;

- Fig. 8 is a view of the assembled heat exchange element.

Sauna stove (figure 3) includes a housing 1 with a furnace 2 and an outlet pipe 3 for flue gases, as well as an ash pan, a grate, a loading door and a heat exchange element 4. The heat exchange element 4 is made in the form of an outer wall formed by half-shells 5 and 6, and inner cylindrical wall 7, made, preferably from a piece of steel pipe. The half-shells 5 and 6 and the cylindrical wall 7 form a flue gas duct 8 communicating with the chimney. Cast half-shells 5 and 6 are flanged together along the parting plane and have the ability to freely rotate the heat exchange element 4 through 360 ° relative to the vertical axis of the flue gas outlet, the parting plane being located along the axis of the furnace flue gas outlet and forming a solid inner wall the element of the cylindrical wall 7 is a steel insert, the ends of which are covered by the inner flanging of the casted semi-casings 5 and 6. The corrugations 9 or longitudinal ribs on the outer surface of the casted semi-casings 5 and 6 are made with reinforcing ribs passing at the points of the bolted connection of their flanges. On the outer end surfaces of the cast half-shells 5 and 6, radially oriented corrugations or ribs are also made, which increase the direction of the heat flow in the direction of the steam outlet. To increase the effectiveness of the effect of steam, the inner surface of the cast half-shells 5 and 6 is made with the possibility of placing a plug from one of its ends, a grate for the formation of a heater in the cavity bounded by it and a means for distributing water in the cavity for steam generation (not shown in the drawings).

The sauna stove, due to the simplicity of its design, can be supplied disassembled, which also ensures its maintainability in the event of any damage to its constituent parts. Initially, the furnace body is assembled, then the heat exchange element 4, pre-assembled from the half-cases 5 and 6 and the cylindrical wall 7, is tightly connected to it through the outlet for flue gases. installation in the furnace of a device for supplying water to the cavity of the cylindrical wall 7 of the heat exchange element). The one-sided direction of the heat flux from the cavity of the cylindrical wall can be realized by installing a plug in the form of a cover from the other end. At the same time, the outgoing steam receives additional heating due to an increase in the path of its passage in the zone of intense thermal radiation and acquires new positive properties. For this, it is possible to supply water for generating steam to the surface of the cylindrical wall 7 located in the immediate vicinity of the installed plug.

Claims (4)

1. Sauna stove, including a body with a firebox and an outlet for flue gases, an ash pan, a grate, a loading door and a heat exchange element made in the form of an outer wall and an inner cylindrical wall, limiting from the outside a through horizontally oriented cylindrical cavity, between which along the entire width of the walls a channel for flue gases is formed, communicated with the chimney, characterized in that the outer wall of the heat exchange element is made of two cast half-shells, combined along the plane of the joint by a flange connection with the possibility of free installation rotation by 360 ° of the heat exchange element relative to the vertical axis of the outlet for flue gases, and the plane of the connector is located along the axis of the outlet for flue gases of the furnace, and the inner cylindrical wall is made in the form of a steel insert, while the cast half-shells are made with an internal flange, covering the ends of the internal steel insert with the formation of a continuous internal it has a cylindrical wall with a steel insert. 2. Sauna stove according to claim 1, characterized in that the cast half-shells are made with corrugations or longitudinal ribs on the outer surface, passing at the points of bolted connection of their flanges into stiffening ribs. 3. Sauna stove according to claim 1, characterized in that radially oriented corrugations or ribs are made on the outer end surfaces of the cast half-shells. 4. Sauna stove according to claim 1, characterized in that the inner surface of the cast half-shells is configured to accommodate a plug from one of its ends, a grate to form a heater in the cavity, and a means of distributing water in the cavity to generate steam.

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