RU19668U1 - UNIVERSAL CAST IRON HEATER-FIREPLACE - Google Patents

Abstract

A universal cast iron fireplace insert containing a fuel chamber with a fuel opening limited by a hearth, side and rear walls, a smoke collector made horizontally with the lower front edge and located above the upper edge of the fuel opening, and a chimney characterized in that the fireplace insert is equipped with a removable front part of the hearth having a trapezoidal, ellipsoidal or rectangular shape, and a frame with refractory glass, repeating the configuration of the removable part of the hearth, while the frame is used to block the fuel opening and the smoke collector is made of two truncated and nested ellipsoidal domes equipped with stiffeners, with the lower dome mounted on the upper part of the combustion chamber, the rear wall of which is also ellipsoidal.

Description

Universal cast iron fireplace insert.

The universal cast-iron firebox belongs to devices for heating and can be widely used in the construction of industrial office and residential premises to create comfortable conditions in them.

There are various designs of fireplaces, the prototype of which is a classic English fireplace, but the main disadvantage of such fireplaces with an open firebox, usually laid out of refractory bricks, is the low efficiency of the fuel system, which does not exceed 10-15%. Currently, the design of fireplaces widely use systems of metal (cast iron and steel) fireplace inserts, the efficiency of which reaches 85-90%

Known Fireplace, containing under the firebox, firebox, rear wall with pinch, chimney, ash chamber with grate and door, moreover, it is equipped with an air supply distribution system installed in the firebox, connected to the atmosphere through a wind-extinguishing device with a main air duct with two air ducts branched from it with regulating windshields installed in them, while one of the ducts is in communication with the ash pan chamber, and the other with an air supply distribution system, area l the cross section of the main duct is not less than the cross-sectional areas of the smoke channel in its narrow part, and the ratio of the cross-sectional areas of the ducts is 3: 1.

MKI: 7F24B1 / 18; 1/185; 1/188

RF patent No. 2045711; 6MKI: F24 V 1/18, Pub. 10/10/95, bull. No. 28. A fireplace is known for creating comfort in a room, containing a firebox and a chimney with a device for blocking it, while the chimney has a lateral inlet pipe with its own device for blocking it, the inlet end of the pipe being located outside the room, and the outlet above the device for blocking the chimney.

RF patent No. 2130567; 6 MKI: F 24V 1/185; pub. May 20, 1999, bull. No. 14. Known fireplace and a device for simulating burning logs,

containing the outer walls and the firebox mounted inside them, the inner space between the walls and the firebox is filled with loose mineral material, and the firebox is made of stainless steel sheet.

Certificate of the Russian Federation for utility model No. 12602; 7 MKI: F24B 1/18, Pub. 01/20/00 g., Bull. Number 2.

Foreign companies have also developed and are implementing a large number of different designs of metal fireplace inserts, differing from each other in size depending on the required output of the furnace and heating efficiency.

Closest to the proposed technical solution is Koshtakova’s fireplace, containing a firebox with a fuel opening limited by the hearth, arch, side and rear walls of the fireplace, a chimney limited by the front, side and internal walls of the fireplace, and a chimney, the arch being made with its front edge made horizontally , is located above the upper edge of the fuel opening, obliquely from the rear wall down forward to

the fuel opening along its entire width, forming a protrusion with the inner wall, and with the front wall - the exit of the chimney into the fuel space. Certificate on the floor. model No. 0001730 to the patent of the Russian Federation; MKI: 24V1 / 188, PubD6.02.9bg. The disadvantages of the above devices include low heat transfer during combustion

The technical result of using the proposed technical solution is to increase the heat transfer during fuel combustion by using the optimal shape of the smoke collector, which creates a stable vortex flow of combustible gases inside the tank, as well as the versatility of the fireplace furnace by using a removable front part of the furnace hearth of various configurations.

The technical result is achieved due to the fact that the Universal fireplace insert containing a fuel chamber with a fuel opening, limited by a hearth, side and rear walls, a chimney and smoke collector, which is made horizontally with the lower front edge and is located above the upper edge of the fuel opening, and a chimney , it is equipped with a removable front part of the hearth having a trapezoidal, ellipsoidal or rectangular shape. To block the fuel opening, a frame with refractory glass is used, which also repeats the configuration of the removable front part of the hearth. The smoke collector is made of two truncated domes nested in each other, which in horizontal section are an ellipse, while the chambers are equipped with stiffening ribs, and the lower dome with its lower edge mounted on the upper part of the combustion chamber, the rear wall, which is also equipped stiffening ribs

repeats the ellipsoidal shape of the dome.

In FIG. 1 - a general view of the fireplace insert,

in FIG. 2 is a side view of the fireplace insert,

in FIG. 3 - elements of the fireplace;

in FIG. 4 - options for removable front parts of the furnace hearth for frames with glasses

According to FIG. 1,2,3, the fireplace insert contains a fuel chamber 1 with a fuel opening 2 bounded by a hearth 3, as well as side 4 and rear 5 walls, a chimney 6 and a smoke collector made of two truncated domes nested into each other, of which 7 lower and upper - 8, and the upper is provided with a shoulder 9 for inserting the chimney 6. Domes 7 and 8 are equipped with stiffeners 10.

Moreover, all these elements are basic and are cast in four parts: the hearth (base), the fuel chamber (firebox) and the smoke collector from two domes enclosed into each other.

The variable parts of the universal fireplace insert are the front part of the furnace hearth 11, which can have, like frame 12 with refractory glass, a trapezoidal, ellipsoidal and rectangular shape (see Fig. 4).

The removable front parts of the hearth hearth 11 are attached to the base hearth 3 of the furnace with screws. Replacing these parts of the hearth as well as frame 12 with refractory glass in a production environment or in a store takes only a few minutes.

The proposed device has the versatility, the ability to choose for the consumer any type of fireplace furnace of three types: "scope

(elliptical shape), “prism (trapezoidal shape) and“ panorama (rectangular shape), a quick change of one type to another, without costly changing the base part of the fireplace insert, as well as reducing the cost of manufacturing various types of fireplace inserts. In addition, the proposed device has increased heat transfer due to the use of two ellipsoidal domes inserted into each other as a smoke collector, which allows you to organize a directed jet flow of gases in a spiral on the inner contour of the domes, which increases the path of hot gases in the smoke collector and thereby the heat transfer the firebox of the fireplace, while also significantly diminishing the parameter of smoke in the room during fuel combustion with an open frame with refractory glass.

Claims (1)

A universal cast-iron fireplace insert containing a fuel chamber with a fuel opening limited by a hearth, side and rear walls, a smoke collector made horizontally with a lower front edge and located above the upper edge of the fuel opening, and a chimney characterized in that the fireplace insert is equipped with a removable front part of the hearth having a trapezoidal, ellipsoidal or rectangular shape, and a frame with refractory glass, repeating the configuration of the removable part of the hearth, while the frame is used to block the fuel opening and the smoke collector is made of two truncated and nested ellipsoidal domes equipped with stiffeners, with the lower dome mounted on the upper part of the combustion chamber, the rear wall of which is also ellipsoidal.