LT3938B - Boiler for central heating - Google Patents

Abstract

The invention is used the in branch of thermal energetics, namely for the production of water heating boilers using solid fuel. In order to increase the stability of the burning process, reduce the input of fuel and the quantity of hazardous materials, exhausted to the air, a new part is introduced to the standard boiler using the furnace (1) of the hardened construction, chimney (6), upper (loading) (7) and bottom (cleaning) (8) doors, fire grate (20), an ash collecting bin (11), air in-suck vent (9), which is connected to a draught regulator (10) by a chain, nipples (18) for connecting the heating system and the burning products exhaustion nipple (13) is the installed with an opening at the bottom, which divides (2) the furnace (1) into the chambers of the primary (3) and secondary (4) burnings, the planes of the secondary chamber are covered by fictile catalysers (5), at the bottom of these catalysers, the secondary channels (21) of the air supply are formed, the chimney (6) must be formed in the shape of the letter "U".

Description

The invention relates to the field of thermal energy and is intended for the production of water heating boilers using solid fuel.

There is a known boiler for water, which consists of a bundle of spit sections, a thermal insulation sheath, an upper f) and a lower (cleaning) door, an outlet for combustion products, a connection for the heating system, a grate and an air supply valve. Water heating boiler KČM Kaunas, Pasas, Vilnius, 1984 /.

Also known is a universal boiler, consisting of a welded construction heat exchanger with a flue outlet connected to the flue outlet in the upper part of the heat exchanger, upper (loading) and lower (cleaning) doors, grates, ash collection box, air intake valves, chain connected to a draft regulator , heating system connection pipes, combustion products outlet pipe and high-speed water heater / see. Universal water heating boiler with high-speed water heater, fired with solid fuel or gas, KS-TGV-2O Support -3-1 ”, Operating Instructions, Vilnius, 1990 m /.

This water heating boiler has major drawbacks. The combustion process in this boiler takes place from the bottom up, i.e. the so-called upper combustion. In this way, as the fuel burns up, the flame ascends to new fuel layers and, in a very short time, ignites all the fuel in the furnace. Because of the short path of the exhaust gas, the combustion gas, when incompletely burned and not providing enough heat to the water in the boiler, passes through the chimney to the environment, thereby contaminating it.Especially these disadvantages occur when burning so-called long flame coals and firewood.

The object of the present invention is to increase the stability of the combustion process, to reduce fuel consumption and to reduce the emission of harmful combustion products into the environment.

The stated aim is achieved by the central heating boiler consisting of a welded construction furnace, flue, upper (loading) and lower (cleaning) doors, grates, ash collecting box, air intake damper circuit connected to the draft regulator, heating system connection pipes, combustion the product outlet, a newly introduced baffle with an opening in the lower part, divides the furnace into primary and secondary combustion chambers, the latter walls are covered with ceramic catalysts, the lower part of which is formed with secondary air supply channels and the flue is made of "U" shape.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a schematic diagram of a boiler.

The central heating boiler consists of a furnace I with a baffle 2 with an opening in the lower part which divides the furnace I into a primary combustion chamber 5 and a secondary combustion chamber 4, catalysts 5, U-shaped flue 6, upper (loading) door 7, lower ) door 8, air intake valve 9, chain connected to traction control 10, ash box II top cover 12, combustion product outlet 13, trawl control valve 14, prime damper 15, thermometer 16, insulating sleeve 17 18, cleaning port cover 19, grates 20 and secondary air supply channels 21.

The central heating boiler operates as follows.

The primary combustion chamber of the boiler is charged with fuel. Fuel is fired through hole 8 in the lower door. When the fuel completely ignites, all doors are closed and the desired temperature is reached by turning knob on traction control knob 10. Further, the combustion process is automatically supported by the draft regulator 10 by means of a chain control of the air intake valve 9. The combustion products from the primary combustion chamber 5 enter the secondary combustion chamber A through the opening in the lower part of the bulkhead 2. Through the passageways 21 in the lower part of the catalyst 5, the secondary combustion chamber 4 enters the additional (secondary) air required for the complete combustion of the gas formed. The catalysts 5 lining the walls of the afterburner chamber 4 maintain a high temperature, which allows the fuel to be completely burned while at the same time releasing unburned solid particles into the environment. When the water warms up, valve 15 is closed using a knob and the urns are routed through the U 'flue θ channels. Here they give full heat to the water. Valve 14 determines the draft required for the rated output of the boiler.

Compared to the prototype, the proposed solution provides a set of constructive measures to ensure optimum secondary air supply to the ceramic catalyst-coated intense combustion zone, resulting in increased combustion stability, reduced fuel consumption and emissions of noxious products.

Claims (1)

DEFINITION OF INVENTION Central heating boiler consisting of a welded construction furnace, flue, upper (loading) and lower cleaning) door, grate, ash collection box, air inlet damper circuit connected to the draft regulator, heating system connection outlet, flue outlet outlet, that the newly introduced baffle with an opening in the lower part dividing the furnace into the primary and secondary combustion chambers, the latter walls being covered with ceramic catalysts, the lower part of which is formed with secondary air supply ducts and the flue is made 'U-shaped.