LT4588B - A heating device - Google Patents

Abstract

This invention is related to heating engineering. The body (1) of the heating device is divided into two parts by a hollow wall (2). In the one part there is a fuel loading chamber (4), turning into a combustion chamber (4a), which is connected via a grid (5) to a ventilating-ash storage chamber (6). The combustion chamber (4a) is connected via a chimney (7) to an additional combustion chamber (8) that also has hollow walls (2a,2b). Hollow panels (9) angled upwards at 20-30 degrees are attached to each hollow wall (2 and 2a). There are more than two of them. The hollow walls (2-2d, 9a) are interconnected and have a water outlet (10) and water reversible (11) socket. The additional combustion chamber (8) in the upper part is connected to a chimney stack (12). All the chambers (4a, 6, 8) have doors (17, 18, 13), and the fuel loading chamber (4) is closed with a cap (15) by sealing mechanisms (21).

Description

The invention relates to heating equipment and is intended for heating home and similar objects.

Various variants of such heating devices are known from which one may designate a heating device as described in patent LT 4054. Several heating chambers are installed inside this heating device, and in each combustion chamber vertical pipes are installed at the bottom of the opening and the heat transfer walls are hollow.

Another heating device known is the boiler. A well-known boiler, which uses dry wood for fuel and additionally a ventilator with adjustable speed, supplying combustion air. The walls of the boiler are double and the capacity between them is filled with water. Inside the boiler, in the upper part, is a fuel loading chamber which is closed by a lid. At the bottom of the loading chamber is a grille with an injection port. The lower part of the heat exchanger is connected to the combustion chamber and the upper part to the chimney and exhaust pipe. The lower part of the boiler is equipped with a cold water pipe and the hot water outlet pipe is located at the top of the boiler. Outgoing water temperature is controlled by digital and manual switches. The chimney is insulated and the smoke temperature lm. at a distance of 95 ° C from the top of the stack

No.LT 3846B).

The design of the known boiler is complicated by the fact that the combustion process uses air supplied by a ventilator, in addition to the inefficient use of heat and smoke.

The object of the invention is to simplify the construction of the installation and increase the efficiency of heat utilization.

The stated object is achieved by the fact that the inner cavity of the housing L of the heating unit L, a hollow wall with a capacity divided into two parts. One part is equipped with a fuel loading chamber, which passes to the combustion chamber, which in the lower part is connected to the ventilation-ash accumulation chamber via the ventilation grille.

The combustion chamber is connected to the second part of the unit by a chimney located at the bottom of the hollow wall, the other two walls of which are also hollow and have tanks. Each side wall is fitted with more than two hollow plates / with containers. The plates overlap and are inclined at an angle of 20-30 °. The ash collection and combustion chamber enclosing the hollow wall with the receptacle connects to the hollow wall, dividing the unit into two parts.

Sz All hollow chambers are interconnected, with a heated water outlet at the top of the unit and a return water outlet at the bottom. The auxiliary combustion chamber is connected to the chimney in the upper part and has a door with an additional ventilation damper in the lower part. The door is closed by sealing mechanisms.

The fuel loading chamber is closed from above by a cover having sealing mechanisms which can be located on three sides of the unit. Combustion and ash collection chambers have doors. The heating unit has a thermal insulation cushion at the bottom.

Further explanations of the description of the heating installation are attached, where:

FIG. 1 - heating device view from front; FIG. 2 - heating device view from the tip; FIG. 3 - heating device view from lateral;

Fig.4 is a side elevational view of the heater.

Fig.5 - section A-A of the heating unit.

The central cavity of the heating unit housing (1) is divided into two parts by a hollow wall (2) having a container (3) inside. One of them is provided with a loading chamber (4), which passes to the combustion chamber (4a), having a ventilation grille (5) at the lower part. Below the ventilation grille (5) is a ventilation-ash collection chamber (6). The fuel loading chamber (4) has a closure cover (16) with sealing mechanisms (21) on its upper part, which can be mounted on three sides of the unit. The combustion chamber (4a) has a front door (18) and the vent chamber (6) has a door (19). Combustion chamber (4a), via a chimney (7), which, at the bottom of the hollow walls (2), connects to the second part of the heating unit, the auxiliary combustion chamber (8). An auxiliary combustion chamber (8) having a hollow side and a rear wall (2a, 2b) having water tanks (3a, 3b).

The auxiliary combustion chamber (8) has a door (13) with a sealing mechanism (15), and an additional vent (14) is provided in the lower part of the door (13). More than two hollow plates (9) with containers (9a) are attached to each hollow sidewall (2,2a). The intervening plates (9) are angled upwards by 20-30 °. All receptacles (3-3d, 9a) are interconnected and connected to a submerged pipe (10) at the top and a submounted pipe (11) at the bottom. The auxiliary combustion chamber (8) is connected in the upper part to the chimney (12). The heating unit (1) has at its lower part a heat insulating cushion (20) projecting from underneath the unit, at least 300 mm from the combustion chamber door (18) and at least 150 mm from the other side.

The first table gives the technical data of the heating unit.

Table No. l

QueueData name Nominal boiler

No. power and other parameters

1. Height, mm 1200 2. Width, mm 500 3. Length, mm 800 4. Volume of fuel loading chamber, dm3 250 5. Water volume in tanks, 1. 50 6th Total boiler weight, kg 250 7th Maximum working pressure in the boiler, kPa 200 8th Fuel consumption in optimum operating mode kg / h 6.0

9. Utility,% 85-90

10. Smoke exiting the combustion chamber, 220-230 ° C

11. Smoke exiting chimney temperature ° C 60-70

12. Minimum outlet water temperature ° C 60-70

The heater operates in the following way:

Open the door (19) through the door (18) into the combustion chamber (4a). Water is poured into the tanks (3,3a, 3b, 3c, 3d, 9a), which are connected to one another, via a submerged pipe (11). The combustion chamber is ignited and, when ignited, the fuel loading chamber (4) is filled with fuel such as sawdust. Stacked fuel is easily compressed and the lid (16) is closed. The cover (16) is clamped by the sealing mechanism (21). Solid fuel, such as sawdust, is released in the combustion chamber (4) when the fuel starts to settle and slides into the combustion chamber (4a), when a gas of combustible material is released (pyrolysis). The auxiliary air supply valve (14) opens. Traction takes place and smoke with hot gas enters the afterburner chamber (8). The gas mixes with air and burns without releasing harmful substances CO and NO and impurities. The fuel, when burned, releases heat to the water contained in the hollow-wall tanks (3,3a, 3b) as well as to the plates (9) and the water in the tanks (9a). The water in the tanks (3,3a, 3b, 9a) heats up unevenly because the smoke, when rising in the auxiliary combustion chamber (8), releases heat to the plates (9) and cools, resulting in uneven heating of the plates (9) and tanks (9a). . The hollow walls (2c, 2d) enclosing the combustion (4a) and ash collecting (6) chambers heat up, as does the water in the tanks (3c, 3d). The differently heated water in the heating vessels causes spontaneous circulation, pressure and flows from the sub-pipe (10) to the central heating system, and the return water flows into the water-heating tanks via the sub-pipe (11). In order to intensify the combustion process, the door (19) and the auxiliary air supply valve (14) are opened more, reducing the combustion process - they are closed. The door (13), the walls (2a, 2b) as well as the heating plates (9) are opened to clean the heater from the debris generated in the auxiliary combustion chamber (8). After cleaning the unit, the door (13) is closed by a sealing mechanism (15). The temperature of smoke exiting the chimney must be at least 65 °.

Advantages of the heating unit compared to the known analogue are that the unit is of simple construction and the utilized hollow plates (9) consume all the heat released. The unit is easy to operate. The loading chamber (4) takes 10-12 hours for fuel and 14-16 hours for reduced combustion. Various wood waste, mainly sawdust, is used as fuel. When operating the unit, it is important that the temperature of the smoke emitted from the chimney (12) does not fall below 65 ° C (dew point) to prevent condensation in the chimney (12), on the top hollow plates (9) and on the top of the auxiliary combustion chamber (8). , this would cause chimney corrosion, which would shorten the life of the unit.

Claims (4)

1. A heating unit consisting of a housing containing fuel loading, combustion, ash 5 collection chambers, as well as a water heating tank consisting of hollow wall cavities connected to the drain and water return plugs, and the combustion chamber connected to the chimney and air supply valve, characterized in that the heating unit body (1) having a hollow inner cavity a wall (2) with a tank (3) divided into two parts, one of which is provided with a fuel loading chamber (4), which passes to a combustion chamber (4a), which in the lower part is passed through a ventilation grate (5) 15 is connected to the ventilation-ash accumulation chamber (6) and the combustion chamber (4a) to the chimney (7) which is in the lower part of the hollow wall (2) connected to the second part of the unit - the auxiliary combustion chamber (8) (2a, 2b) also 20 are hollow and have receptacles (3a, 3b), and more than two hollow plates (9) with receptacles (9a) are attached to each side wall (2,2a), which are interposed and inclined upwards 20-30 ° angle while hollow The wall (2) is connected to the side hollow walls (2c, 2d) with the receptacles (3c, 3d) enclosing the side portions of the combustion (4a) and ash collecting (6), and the hollow chambers (3-3d, 9a) are interconnected. and with a heated water outlet (10) and a return water outlet (11), and the auxiliary combustion chamber (8) is connected to the chimney (12) in the upper part and further has a door (13) with an additional ventilation damper (14). ), the door (13) is closed by sealing mechanisms (15), and the fuel loading chamber (4) is closed from above by a lid (16) having sealing mechanisms (21). 2. Heating device according to claim 1, characterized in that the combustion chamber (4a) has a door (18) and the ash collection chamber (6) has a door (19). 3. A heating device according to claim 1, characterized in that the device comprises a heat insulating cushion (20). 4. Heating device according to claim 1, characterized in that the sealing mechanism (21) of the fuel loading chamber (4) is on three sides.