CN2789674Y

CN2789674Y - Civil atmospheric gas combustion heating furnace

Info

Publication number: CN2789674Y
Application number: CN 200520090109
Authority: CN
Inventors: 范家文
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-05
Filing date: 2005-04-05
Publication date: 2006-06-21
Anticipated expiration: 2015-04-05

Abstract

The utility model discloses a civil atmospheric gas combustion heating furnace. The utility model comprise a furnace body, a furnace liner, a combustion apparatus and an air-supply device, wherein the furnace liner is composed of primary fire pipes, a secondary mixing and combustion chamber, secondary fire pipes and a secondary heat conversion chamber from top to bottom. The primary fire pipes are a plurality of straight pipes in vertical arrangement. The primary fire pipes are positioned on the combustion chamber, pipe openings of the lower parts of the primary fire pipes are communicated with the combustion chamber and pipe openings of the upper parts of the primary fire pipes are communicated with the secondary mixing and combustion chamber. The secondary mixing and combustion chamber forms a disc shape, and the upper part of the secondary mixing and combustion chamber is provided with a plurality of secondary fire pipes in circular arrangement. Lower openings of the secondary fire pipes are communicated with the secondary mixing and combustion chamber, and upper openings of the secondary fire pipes are communicated with the secondary heat conversion chamber. A water jacket is formed between the outer wall of the secondary heat conversion chamber and the outer wall of the furnace body. The middle part of the water jacket is provided with a plurality of water pipes which are communicated with a boiler water jacket. The middle part of the top of the secondary heat conversion chamber is provided with a smoke exhaust opening. As the utility model uses the furnace liner with a multilayer structure, the gas is sufficiently combusted and the heat efficiency of the boiler is improved.

Description

Civilian normal pressure gas heating stove

(1) technical field

The utility model relates to resident's warming technical field, is specifically related to a kind of normal-pressure boiler.

(2) background technology

At present, civilian normal pressure gas heating stove ubiquity burning is insufficient, incomplete; Exhaust gas temperature is too high, and heat loss is big, and boiler thermal output is low; Automaton expense height, problems such as safe operation poor reliability.

(3) summary of the invention

The purpose of this utility model provides that a kind of combustion gas can fully be burnt, thermal efficiency height, safety, gas type heating stove that reliability is high.The technical solution adopted in the utility model is: civilian normal pressure gas heating stove comprises body of heater, flue, burner and air-supply arrangement, flue is positioned at above the combustion chamber, constitute by fire tube, secondary hybrid combustor, secondary fire tube and a secondary thermal energy conversion chamber from bottom to up, a fire tube is the many straight tubes of vertically arranging, be positioned at above the combustion chamber, mouth of pipe communicates with the combustion chamber below it, above the mouth of pipe connect the secondary hybrid combustor; The secondary hybrid combustor is discoid, the secondary fire tube that has many annulars to arrange above, and secondary fire tube end opening communicates with the secondary hybrid combustor, suitable for readingly communicates with secondary thermal energy conversion chamber; Constitute water jacket between furnace outer wall and the furnace body outer wall, have many water pipes to communicate with the boiler water jacket in the middle of the secondary thermal energy conversion chamber, secondary thermal energy conversion chamber crown center has exhaust opening.During work, be full of water in the boiler water jacket, combustion gas is sent into burner by the bottom pipeline, burns in the combustion chamber in the igniting back, flame in the combustion chamber and hot flue gas rise to the secondary hybrid combustor by an equally distributed fire tube, enter secondary thermal energy conversion chamber through the secondary fire tube again.Aqueous medium around combustion chamber, fire tube, secondary hybrid combustor and a secondary fire tube are given thermal energy transfer by thermal radiation and heat conduction.The hot flue gas that enters secondary thermal energy conversion chamber continues to heat the water pipe in the switch room, heat is passed to use thermal medium as much as possible, after the smoke exhaust pipe discharge.The utility model can make combustion gas burn fully owing to adopt the flue of sandwich construction, improves the thermal efficiency of boiler.

(4) description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of the utility model flue;

Fig. 3 is the A-A cutaway view of Fig. 2;

Fig. 4 is the B-B cutaway view of Fig. 2;

Fig. 5 is a body of heater substructure schematic diagram;

Fig. 6 is the vertical view of Fig. 5;

Fig. 7 is flame, flue gas flow direction schematic diagram.

(5) specific embodiment

Civilian normal pressure gas heating stove has body of heater 1; flue 2; burner 3; air-supply arrangement 4; flue 2 is by a fire tube 5; secondary hybrid combustor 6; secondary fire tube 7; secondary thermal energy conversion chamber 8; water pipe 9 constitutes; during work; combustion gas enters gas mixing chamber 11 by gas supply pipe 10; igniting pin 12 and blowout protection pin 13 are arranged in the top of gas mixing chamber; after air and fuel gas mix; enter combustion chamber 14 again; light the combustion gas that mixes by igniting pin 12; pyrotechnics is by a fire tube 5; enter secondary hybrid combustor 6 and carry out second-time burning; enter secondary thermal energy conversion chamber 8 by secondary fire tube 7 again; the water pipe 9 that the transversal flow radial misalignments is arranged, than high heat transfer coefficient heat is passed to WATER AS FLOW MEDIUM, flue gas enters atmosphere through smoke exhaust pipe again.The utility model on burner with the blowout protection pin, make it in burning, obtain more reliable protection, under suddenly flame-out situation, the locked Gas Pipe of magnetic valve can not be leaked its combustion gas, guarantees user's personal safety.Air-supply arrangement is air inlet 15 once in the burner bottom, there is secondary air mouth 16 at the place in the combustion chamber, the blast pipe mouth of pipe of secondary wind is along the inwall setting of combustion chamber, with the angle of chamber wall tangent line less than 15 °, make the mobile swirl shape that is of the air that enters the combustion chamber, when mixing with burning gases, disturbance to flame is very strong, and shape rises in the shape of a spiral, make its combustion process that enough room and times be arranged, combustion gas fully and is fully burnt, emit heat to greatest extent, spiral vortex type flame enters an equally distributed fire tube, fire tube is fifty-fifty in the WATER AS FLOW MEDIUM of the heat bulk storage of thermal-flame around the fire tube, arrive the secondary hybrid combustor by a fire tube, after thermal-flame arrives here, the combustion gas that not have burning of rising runs into that secondary mixing combination burning chamber upper wall turns back and the pyrotechnics that rises meets, thereby produce the explosion type burning, make all burnings fully of combustion gas, produce high-temperature flue gas, high-temperature flue gas enters secondary thermal energy conversion chamber by the secondary fire tube of annular spread, here high-temperature flue gas laterally washes away the vertical straight water pipe that radial misalignments is arranged in the thermal energy conversion chamber repeatedly, make the water that flows through in the water pipe fully absorb the heat that high-temperature flue gas distributes, thereby saved the energy, through twice fire tube, three heat exchanges of a water pipe, exhaust gas temperature reduces significantly, and the sensible heat of combustion gas is utilized fully.The thermal efficiency of the present utility model can have been saved the energy up to 95%.

Claims

1, a kind of civilian normal pressure gas heating stove, comprise body of heater (1), flue (2), burner (3) and air-supply arrangement (4), it is characterized in that: its flue (2) is from bottom to up by a fire tube (5), secondary hybrid combustor (6), secondary fire tube (7) and secondary thermal energy conversion chamber (8) constitute, a fire tube (5) is the many straight tubes of vertically arranging, be positioned at above the combustion chamber (3), mouth of pipe communicates with the combustion chamber below it, the top mouth of pipe is connected secondary hybrid combustor (6), the secondary hybrid combustor is discoid, the secondary fire tube (7) that has many annulars to arrange above, secondary fire tube end opening communicates with hybrid combustor, suitable for readingly communicates with secondary thermal energy conversion chamber (8); Form water jacket between secondary thermal energy conversion chamber (8) outer wall and body of heater (1) outer wall, have many water pipes (9) to communicate with the boiler water jacket in the secondary thermal energy conversion chamber (8), secondary thermal energy conversion chamber crown center has exhaust opening.

2, civilian normal pressure gas heating stove according to claim 1 is characterized in that: water pipe (9) radial misalignments in the secondary thermal energy conversion chamber (8) is arranged.

3, civilian normal pressure gas heating stove according to claim 1, it is characterized in that: burner (3) has blowout protection pin (13).

4, civilian normal pressure gas heating stove according to claim 1 is characterized in that: the blast pipe mouth of pipe of air-supply arrangement is provided with along the combustion chamber inwall, air intake pipe orifice towards with the angle of chamber wall tangent line less than 15 °.