LT6279B - Solid fuel gasification boiler with universal gas combustion - Google Patents

Abstract

The invention belongs to heating appliances. To keep heat, a stainless steel reflection partition wall (7) is installed in the fuel-stocking shaft, the first combustion chamber (6). Over the ash box (8) there is an air preheating tube (11) connected to the combustible gas velocity accelerator (12). A universal gas combustion unit (14) for formation and combustion of the combustible gas mixture at high temperatures is installed in the second double-wall combustion chamber (13). The installed forced draft fan (5) is designed to control the air intake and thus to achieve optimal formation of the combustible gas mixture and its effective combustion in the universal gas combustion channel (20). Metal plates fixed to the heat exchanger (21) provide for total heat transfer. The operation of the boiler is automated.

Description

The invention relates to heating techniques, namely solid fuel boilers.

The closest technical solution is described in U.S. Pat. 5731, TPKK: F 23 B 10/00, published by the State Patent Bureau. biul. Inventions, Design, Trademarks, 2011 No. 2, consisting of a furnace inside the furnace, combustion chambers, gas burning chambers with burner, ashtray boxes, chimney and heat exchanger. The wall of the burner is double-walled, each wall has an opening below it, one is intended to supply the secondary air to the cavity between the burner walls and the other to the hot secondary air to the combustion gas mixture formation and combustion channel. A well-known technical solution does not ensure optimal heat generation, a sufficiently high combustion gas mixture formation and combustion at high temperatures. The object of the invention is to increase the amount of heat released by accelerating the formation and combustion of a combustible gas mixture at high temperature. For the purpose of the invention, a boiler furnace is provided with a stainless steel reflection wall at the bottom of the first combustion chamber, and an air tube from the ambient air supply connected to the ash collection box connected to a tube-shaped accelerator for supplying heated air and accelerating the flow of flammable gas into a universal gas combustion plant. installed in the second double-wall combustion chamber, burns the gas mixture formation and combustion channel. In addition, the metal cone-shaped gas burning unit consists of an air supply-heating channel between the walls of the double-walled unit of the device and connected to the air ducts from which the opening of the device is mounted, as well as a device consisting of a double metal core mounted inside the housing. with a lid is an internal and external hot air distribution-supply channel formed between the outer core and the inner wall of the housing to distribute and deliver hot air to a combustible gas mixture formation and combustion channel between the outer and inner cores. In addition, for the purpose of the invention, the burner core and lid are provided with holes; the ash collection box removable partition is split vertically into two parts: a control panel for the control of the combustion process, operating according to the set program; the upper part of the furnace is equipped with an additional opening for fueling the furnace; metal plates attached to the heat exchanger. The invention is illustrated by the drawings.

FIG. 1 - main scheme of gas-fired solid fuel boiler, where 1 - boiler body, 2 - fuel loading door, 3 - fuel firing door, 4 - chimney, 5-forced draft fan, 6 - firing (first combustion chamber), 7-unique steel reflective wall, 8 - ash collection box, 9 - firebox grill, 10 - ash collection box partition, 11 - air supply tube, 12-accelerator, 13-second double-wall combustion chamber, 14 - universal gas burner, 21 - heat exchanger. FIG. 2 is a schematic diagram of a universal gas combustion plant, where 15 is the opening of the device, 16 is an air supply-heating channel, 17 is an inner core, 18 is an external core, 19 is a hot air distribution-supply channel, 20 is a combustible gas mixture, and combustion channel.

Gas Generating Solid Fuel Boiler Housing 1 Metal with Double Wall. The boiler body 1 is equipped with a fuel loading door 2 at the top, a fuel firing door 3 at the bottom and a valve which can be operated manually or automatically. Chimney is installed to remove combustion products from the upper part of the boiler. 4. A forced draft fan is integrated in the upper part of the boiler. The bottom 6 of the furnace is equipped with a stainless steel reflective wall 7 reflecting the heat (heat) back to the furnace - the first combustion chamber 6. The ash collector 7 is fitted with an ash collection box 8 and the ash collection box 8 is equipped with an ash grate 9. Ashtray 8 vertically separated removable partition 10, which allows the acceleration of evaporation of moisture from the fuel. A partition 10 is required when higher thrust is required when the fuel is burnt in the first combustion chamber 6. After the furnace - the first combustion chamber with 6 grates 9 to heat the air from the environment, an air heating tube 11 and an accelerator for the gas flow to the burner 12 are installed. Next to the furnace - the combustion chamber 6 is the second double wall combustion chamber 13, which is equipped with a universal double wall. a cone-shaped gas burner 14 with a flip-off lid for forming and burning a flammable gas mixture. The opening cover 15 is comprised of air heating channels connected to an air supply-heating channel 16 formed between the walls of the housing. Inside the body 14 of the device body, the central part of the cone is provided with a double cone-shaped core - inner 17 and outer 18, covered with a lid (the core walls and lid are provided with holes).

Between the outer core 18 and the inner wall of the housing 14 there is a hot air distribution-supply channel 19 for supplying hot air to a combustible gas mixture formation and combustion channel 20. The combustion gas mixture formation and combustion channel 20 is located between the inner and outer cores 17. The boiler is connected to the heat exchanger (heating system) at the inlet and outlet ports 21. Metal plates are welded to the heat exchanger 21, which makes it possible to remove the generated heat more efficiently.

The gas-fired solid fuel boiler with a universal gas burning unit works as follows.

When the solid fuel, such as firewood, wood waste or briquettes, is loaded through the loading door 2, the furnace opens the firing door 3 of the first combustion chamber 6 and, in the case of air traps, ignites the fuel. Burning solid fuel (coarse or fine) in the furnace - the first combustion chamber 6 produces flammable gas. Flammable gas from the furnace - the first combustion chamber 6 enters the second combustion chamber 13. Entering the flammable gas stream into the second combustion chamber 13 and at the same time into the universal gas combustion unit 14 is activated by the heated air supplied by the accelerator 12 into which the heated air enters the air supply pipe 11 The air heating tube 11 heats up automatically from the coils. Flammable gas enters the combustion gas mixture and combustion channel 20 of the unit with hot air, additionally hot from the ducts of the unit, which have entered the hot air distribution-supply channel 18. The additional heating of the air to the hot, that is to high temperature, influences fast and high-quality combustion gas mixture and efficient combustion. Thus, the combustible gas mixture formed in the universal gas combustion plant 14 thus generates a sufficiently high amount of heat by combustion which is removed by the heat exchangers with the attached plates. The reflective wall 7 keeps the heat in the furnace - the first combustion chamber 6, preventing it from spreading. In addition, due to the installation of a suitable gas-fired combustion unit in the second combustion chamber, the upward heat dissipates evenly and the heat exchanger 21 with the attached plates takes up the optimal amount of heat. The products of combustion also rise to the top of the boiler and pass through the chimney.

For optimal combustion gas mixture formation and combustion conditions, the supply air is controlled by a forced draft fan. According to the lambda probe (oxygen content in the exhaust gas sensor), it is possible to automatically control the amount of air supplied by the valve and the exhaust fan.

Boiler work is automated. The boiler's technical solution is optimal, ensuring high-quality combustion gas mixture formation and full and cost-effective combustion at high temperature 1200-2000 ° C, which results in high heat output. Stainless steel reflective wall and double-walled second combustion chamber play a major role in overall heat retention and high temperature maintenance. Since the boiler is operated and controlled according to the set program, since the second combustion chamber is equipped with a universal gas burning unit, it is easier to regulate the combustion process, reduce the time for the boiler service and achieve a high boiler efficiency.

Claims (7)

DEFINITION DEFINITION 1. Gas-fired solid fuel boiler with a universal gas burning unit, consisting of: metal, double-skinned, insulated housing with loading and unloading doors, internal furnaces, combustion chambers, ashtray boxes, chimney and heat exchanger that the furnace is equipped with a stainless steel reflective wall in the lower part of the first combustion chamber, and an air tube from the ambient air is connected to the ash collection box, connected to a tube-shaped accelerator for supplying heated air and accelerating the flow of flammable gas into a universal gas burner installed in the second. two-way combustion chamber, combustion gas mixture formation and combustion channel. 2. A gas-fired solid fuel boiler with a universal combustion plant according to claim 1, wherein the second combustion chamber is equipped with a universal metal cone gas combustion plant consisting of an air supply-heating channel located between the walls of the housing of the device and connected to the air heating. the ducts, which are fitted with a device-opening lid, as well as the device consists of a double metal core with a lid inside the housing - an internal and external hot-air distribution-supply channel between the outer core and the inner wall of the housing to distribute and deliver hot air to combustion gas mixture formation and combustion channel between the outer and inner cores. 3. A gas-fired solid fuel boiler with a universal gas combustion plant according to claim 2, wherein the burner core and the lid are provided with holes. 4. A gas-fired solid fuel boiler with a universal gas burning unit according to claim 1, characterized in that the ash collection box is removably divided into two parts by a removable partition. 5. A gas-fired solid fuel boiler with a universal gas burning unit according to claim 1, characterized in that the control of the combustion process is provided by a control panel operating according to the program. 6. A gas-fired solid fuel boiler with a universal gas-fired combustion plant according to claim 1, wherein the upper part of the furnace is provided with an additional opening for firing fuel. 7. A gas-fired solid fuel boiler with a universal gas combustion unit according to claim 1, characterized in that metal plates are attached to the heat exchanger by welding.