RU8778U1 - HEATER AIR HEATER - Google Patents

Abstract

1. The stove air heater, comprising a housing of air-conducting pipes, a rear wall with a pipe and a rotary valve for flue gases, a front wall with a fuel loading window, a door and a shutter for air intake, a bottom with a grate, characterized in that the air-conducting pipes constituting the casing are arched and connected in series into a monolithic block, the lower ends of the pipes are open, and in the upper part, from the outside, along the vertices of the arcs, with the exception of the pipe closest to the front wall, ying grooves for discharging heated vozduha.2. An air heater according to claim 1, characterized in that the rear wall and the bottom are provided with a screen. An air heater according to claim 1, characterized in that the rotary damper for the exit of flue gases is connected via a lever system to a handle located on the side of the front wall. An air heater according to claim 1, characterized in that the door of the front wall in size corresponds to the front wall and is equipped with an annular seal and a screen. The air heater according to claim 1, characterized in that the pipe closest to the front wall is equipped with a gas ejector.

Description

Stove heater

The utility model relates to devices for heating rooms.

A device for heating premises (Patent RU 2001352 C1, bull. No. 37 - 38, 10/15/93) is known consisting of a housing with front and rear walls, arcuately curved air-conducting pipes arranged in a checkerboard pattern with side sheets covering them, each of which has the upper and lower rows of holes for the opposite side of the air ducts. The side sheets are combined with a bottom and top sheet with a pipe for the removal of flammable gases, inside of which there is a shutter with a handle for moving it. The disadvantages of this device are the low processability due to the high metal consumption required for the manufacture of the housing, and unsatisfactory fire safety because of - due to overheating of the side walls of the housing between the air ducts.

The closest technical solution is the Bullerian air heater (the brochure is attached), consisting of a combustion chamber formed by arched curved air pipes, the upper and lower ends of which are staggered outside the chamber, inside of which a flue gas partition and tube ejectors are installed in the upper part , a back wall with a pipe and an adjustable damper for the exit of flue gases, a front wall with a hatch for loading a furnace

chambers with fuel and a hinged door with a nozzle and an adjustable damper for blowing air.

However, this device also has a complex and laborious design due to the increased consumption of pipes, the technological complexity of their connection, as well as insufficient efficiency due to the non-use of the thermal surfaces of the rear and front walls.

The objective of the proposed technical solution is to increase manufacturability, reduce the complexity of manufacturing and increase thermal efficiency.

The solution of this problem is achieved by the fact that the air heater consists of a housing, a rear wall with a pipe and a rotary damper for you -

smoke, gas, front wall with a window for loading fuel, closed -

a door with a flap for air intake, a flat bottom with a grate. The body is formed by arched air-conducting pipes connected in a monolithic block, the lower ends of the pipes are open, and grooves for the exit of heated air are made on the tops of the arcs, the rear wall and the bottom are provided with a screen, and the rotary damper for the exit of flue gases is connected via a lever system to the handle located on the front wall side.

The execution of the body in the form of a monolithic block of arcuate air - conducting pipes welded along the generatrix allows to reduce the complexity of manufacturing and increase manufacturability in comparison with the prototype.

The presence of a screen on the side of the rear wall and the bottom, as well as the presence of a gap between the front wall and the door, provides for -

the formation of additional air flow and screening them from overheating.

In FIG. 1 shows a stove air heater (front view), FIG. 2 is a side view, FIG. 3 is a plan view.

The air heater is a welded steel structure. The furnace space is formed from arcuate pipes 1 welded along the generatrix into a solid monolithic block. The ends of 2 pipes 1 are open. On the tops of the arcs from the outside, grooves 3 are made on all pipes except the one closest to the front wall. The bottom 4 of the heater is flat, on it there is a grate 5. The rear 6 and front 7 walls are steel. A window 8 for loading fuel is formed in the front wall 7. The window is closed tightly by the door 9 on the ring asbestos seal 10. The door 9 is almost identical in size to the wall 7. To prevent overheating of the door 9, a heat shield is installed on it 11. To blow air and regulate the intensity of combustion, a hinged shutter 12 is installed on the door. .

On the rear wall 6 in the upper part a tube 13 is welded for the exit of flue gases. In the nozzle 13, a rotary damper 14 is installed, which throttles the flue gases throttled through the rod 15 with a handle 16 from the front of the air heater.

From the side of the rear wall 6 and the bottom 4, a screen 17 is installed, forming a gap space 18 along the planes of the bottom 4 and the rear wall 6.

From the outside of the pipe block, steel strips 19 are welded along the generators,

Inside the combustion chamber in the upper part there is a partition 21 for removing flue and combustible gases.

The operation of the heater is as follows.

Through the window 8 in the front wall 7, the air heater is loaded with wood or wood waste, including sawdust, wood shavings, cardboard waste, etc. The window is closed tightly with door 9 with an asbestos ring seal 10 and heat shield I.

In the ignition mode, the rotary damper 14 for the exit of flue gases and the damper 12 on the door 9 are fully open.

After ignition of the main fuel, the shutter 14 is at least 50% closed using the handle 16, and the shutter 12 is closed by an amount that provides the necessary thermal regime.

After heating the heating space through the open ends 2 of the pipes 1, cold air is taken in, which, when heated from the pipes, is naturally drawn into the stream and through the grooves 3 in the upper part comes out with a temperature of 50 -60 ° C higher with respect to the initial air temperature at the inlet hole 2.

Using the damper 12, the combustion intensity is regulated.

The handle 16, located on the side of the front wall through the rod 15 sets the position of the rotary valve 14, which provides additional adjustment of the intensity of fuel combustion.

Through the slit space 18 along the planes of the bottom 4 and the rear wall 6, heated air from the lower part, from the side of the front wall 7, to the top of the rear wall 6 forms an additional stream of heated air. In the gap -

An additional heat flow is also formed between the door 9 and the wall 7.

Steel strip 19 on the outside of the tubular block also creates additional channels for thermal air flows.

The exit of flue gases is made through the pipe 13 through steel or other pipes with an exit beyond the roof of the building by at least 0.6 m with a total height of 4 -5 m.

The tubular ejector 20 is designed to intensify the removal of flue gases and their afterburning. Through the first arcuate pipe that does not have a groove 3, the heated air is directed into the smoke space formed by the partition 19, which intensifies the natural draft and afterburning of the exhaust flue gases.

Thermal screens - and a monolithic tubular furnace block exclude places of overheating of external surfaces, which ensures fire safety of the air heater.

An asbestos ring seal installed on the door and the structure is sealed ensures that the air heater meets the requirements for carbon safety.

The tubular ejector - afterburner 20 intensifies the combustion process in the chimney of the air heater, which reduces the carbon monoxide index at the gas outlet from the chimney, thereby increasing safety, environmental emissions and the efficiency of the heater.

The air heater can be used to heat residential, industrial premises, garden and country houses, greenhouses, garages, saunas, drying rooms, etc.

The air heater provides the necessary thermal regime at any time of the year without any other sources of heating.

Depending on the size of the air heater, which is determined by the dimensions and amount of fuel loaded at one time, it is possible to heat rooms with a volume of 100 to 1000 m3.

Claims (5)

1. The stove air heater, comprising a housing of air-conducting pipes, a rear wall with a pipe and a rotary valve for flue gases, a front wall with a fuel loading window, a door and a shutter for air intake, a bottom with a grate, characterized in that the air-conducting pipes constituting the casing are arched and connected in series into a monolithic block, the lower ends of the pipes are open, and in the upper part, from the outside, along the vertices of the arcs, with the exception of the pipe closest to the front wall, ying grooves for discharging heated air.  2. The heater according to claim 1, characterized in that the rear wall and the bottom are provided with a screen.  3. The heater according to claim 1, characterized in that the rotary damper for the exit of flue gases is connected through a lever system with a handle located on the side of the front wall.  4. The heater according to claim 1, characterized in that the door of the front wall in size corresponds to the front wall and is equipped with an annular seal and a screen. 5. The heater according to claim 1, characterized in that the pipe closest to the front wall is equipped with a gas ejector.