PL65201Y1 - Blow heater device - Google Patents

Description

2 PL 65 201 Υ1

Pattern description

The subject of the utility model is a device for air heating of rooms or industrial halls.

From utility model application No. 110630, a heat exchanger for heat recovery from the exhaust gases of a central heating furnace is known, made of pipes for the flow of exhaust gases, embedded in rectangular tube sheets and surrounded by an outer jacket with a stub pipe and a fan blowing air into the inter-pipe space. The air heated by exhaust gases is directed through the stub pipe to heat residential or utility rooms. The horizontal arrangement of the flue gas discharge pipes, especially resulting from the combustion of solid fuels, is burdensome due to the deposition of solid particles of the combustion process, and thus the need for frequent cleaning of the exchanger. A much better solution found in air-fumes exchangers is the use of vertical arrangement of heating pipes that discharge the fumes. In this case, the pipes require much less maintenance to remove soot, and coarser dirt particles do not settle on the walls of the flue gas pipes under the influence of gravity.

From utility model application no. 90952, a gas heater is known, which has a casing in the form of a cuboid closed at the top with a hot air duct outlet, a draft interrupter and exhaust gas outlet, and at the bottom with a cover that protects the fan. The exchanger in the shape of a cuboid with a developed surface is placed inside the housing. Inside the exchanger there is a main burner with a regulating and safety assembly. There is an air circulation fan under the exchanger. An oil burner is also used in other heaters of this type. From the description of the Polish invention No. 192574 there is known a boiler with a retort furnace with an extended heating surface and a two-stage furnace designed for the production of thermal energy based on solid fuel. The retort furnace has two stages and is equipped with air slots, and the symmetrical structure of the collector allows the boiler to be supplied with fuel and air both on the right and on the left. The heat exchanger made as a multi-part one is a single water unit and includes a lower part around the furnace, a middle part which is a drum filled with vertical pipes for the flow of flue gas, an upper part around the flue gas collector and an external part which is through pockets. The entire boiler is made of a uniform welded structure.

The essence of the design is an air-heating device, which comprises a furnace with a retort burner and above the air-fumes exchanger ended with a flue, the exchanger with the furnace and ventilation ducts being detachably connected and preferably flanged connections. The exchanger, preferably a transverse tubular exchanger, has a series of vertically arranged pipes mounted inside between the upper and lower walls.

The device according to the formula provides an adjustable and controlled control of heating with air without the need for intermediate media, liquids. Thus, the device is resistant to shutdown in sub-zero temperatures. The use of a retort furnace allows the use of various solid fuels, such as coal, wood pellets, and even cheap coal dust.

The subject of the design is shown in the figure, which shows the heating device in a side view.

The blow-in heating device comprises a retort furnace 1 at the bottom and an air-fume exchanger 2 connected together by a flange 3 above. A flue 4 is attached to the upper outlet of the exchanger. There are flanges 5 on the side surfaces of the exchanger. it is possible to use other exchangers, e.g. longitudinal tubular or shell heat exchangers. The transverse tube exchanger between the upper and lower walls has a number of vertically arranged pipes 6 mounted inside it for the discharge of exhaust gases into the flue. The pipes are arranged alternately so as to swirl and extend the path of the air flowing over them. The pressure difference in the combustion chamber and the usable air chamber prevents exhaust gases from getting into the ventilation duct. Air and heated air entering the exchanger from the side are transported by pipelines. The retort furnace 1 in the area of the combustion chamber has a controllable and programmable retort burner 7 with a screw system 8 for feeding fuel from the reservoir 9.

Claims (2)

1. Protective claims 1. A device for blast heating containing a heat source and a heat exchanger, characterized by the fact that it comprises a furnace with a retort burner (1) and above, an air-fumes exchanger (2) terminated with a flue (4 ), wherein the exchanger with the furnace and ventilation lines are connected separately and preferably by flange connections (3, 5). 2. A device according to claim The heat exchanger (2) as claimed in claim 1, characterized in that the exchanger (2), preferably a tubular transverse, has an inside wall between the upper and lower wall and a series of vertically arranged pipes (6) are fixed. Figure PL 65 201 Y1 4 Publishing Department of the UP RP PL PL