CN2489199Y - Vertical boiler with dust-removing energy-saving combustion-supporting device - Google Patents

Abstract

The utility model relates to a vertical furnace that is provided with a dust-removing and energy-saving combustion supporter. A combustion supporter consisting of a ring-shaped heat storage arc and a heat storage body which is provided with a plurality of holes is arranged above the combustion chamber; a setting chamber is arranged above the combustion supporter. A plurality of small openings of the channel of the heat storage body is arranged around and above the heat storage body, the side wall of the setting chamber is provided with a tangential secondary draught and a tangential third draught. The combustion chamber of the vertical furnace forms tornado type combustion under the action of tangential secondary wind and the heat storage arc to burn the fuel gas completely. The fuel gas enters into the setting chamber and burns completely for the second time under the act of the third wind. The utility model can improve the heat efficiency of the furnace; dust can automatically enter the drag discharge mouth and the utility model has the effect of dust-free. The utility model is needless of water-cooling wall and has simple structure.

Description

A kind of vertical boiler with dedusting energy-saving combustion-supporting

Technical field

The utility model relates to the combustion apparatus of the device that has burning initial combustion uncombusted material, the improvement of combustion chamber top board, the removing of combustion residue, and particularly a kind of have a dedusting energy-saving combustion-supporting vertical boiler.

Background technology

At present, the combustion system of existing vertical boiler mainly contains double-layer grate back burning mode and the individual layer fire grate is just burning these two kinds of modes, arranged more water-cooling wall in the existing vertical boiler, to prevent that too much high-temperature smoke from directly discharging flue, not only make the boiler structure complexity, and the temperature in the burner hearth is reduced, caused burning not thorough, a large amount of unburnt materials are discharged in the atmosphere, have not only reduced the thermal efficiency of boiler, and the environment of having wasted energy pollution.

Summary of the invention

The purpose of this utility model provides a kind of vertical boiler with dedusting energy-saving combustion-supporting, and this boiler can improve the temperature of burner hearth, makes full combustion of fuel, improves the thermal efficiency of boiler, also has the smoke abatement and dust control function, and boiler structure is oversimplified.

For achieving the above object, the utility model is taked following design: install combustion-supporting above the vertical boiler combustion chamber, and make between combustion-supporting and the heat exchanger tube and form expansion chamber, this combustion-supporting is by the annular poultry heat arch that is covered in top of combustion chamber and place the porous poultry hot body on this poultry heat arch top to constitute, porous poultry hot body is made by refractory material, be provided with a plurality of small-sized ducts, lead to outside the poultry hot body by poultry hot body bottom, its opening be distributed in heat storage around and the top, this poultry hot body places on the through hole in the middle part of the annular poultry heat arch; Near the hot arch of poultry place 3 to 5 ash discharging holes are set at the expansion chamber sidewall, the uniform a plurality of tangential overfiren air ports of sidewall of combustion chamber, the sidewall of expansion chamber is provided with tangential tertiary air orifice.

Its top, combustion chamber of this vertical boiler is provided with the combustion-supporting that is made of annular poultry heat arch and porous poultry hot body, and after the combustion chamber took fire, the combustion-supporting at its top was heated, and heat is saved and preserve.Along with the rising of chamber temperature, combustion-supporting has had very high heat energy energy, blasts tangential wind by overfiren air port in the combustion chamber, under the effect of tangential wind and annular accumulation of heat arch, forms the burning form of cyclone type in the burner hearth.Unburnt combustible is when running into high-temperature combustion-supporting device in burning, will receive the radiant heat of combustion-supporting and reaches burning-point and burn away, thereby play energy-conservation combustion-supporting effect.When the numerous small-sized duct of flue gas by annular accumulation of heat arch middle part through hole and porous regenerator body enters expansion chamber, under three tangential wind actions, make that fuel gas and combustible particle can burn more fully in the flue gas.The utility model fully burns by combustion chamber and expansion chamber secondary, improves the thermal efficiency of boiler.Porous regenerator body in this device is provided with a plurality of small-sized ducts, lead flue gas around the heat storage and the top, changed the trend of flue gas, weakened the speed that flue gas rushes at smoke exhaust pipe, avoid flue gas directly to enter smoke exhaust pipe, the dust of after-flame enters the cinder-discharging port that is located at the expansion chamber periphery in the burning under gravity and three tangential wind actions.Thereby play the dedusting effect.Because the utility model more can make combustible fully burn and the smoke abatement and dust control function, and water-cooling wall needn't be set, boiler structure is oversimplified.

Description of drawings

Fig. 1 is the vertical boiler structural representation that the utlity model has the dedusting energy-saving combustion-supporting

The specific embodiment

As shown in Figure 1, the utility model is to install combustion-supporting above vertical boiler combustion chamber 2, and make between combustion-supporting and the heat exchanger tube 7 and to form expansion chamber 10, this combustion-supporting is by the annular accumulation of heat arch 5 that is covered in top of combustion chamber and place the porous regenerator body 6 on this accumulation of heat arch top to constitute, the porous regenerator body is made by refractory material, is provided with a plurality of small-sized ducts, is led to outside the heat storage by the heat storage bottom, its opening is distributed in above the reaching all around of heat storage, and this heat storage places on the through hole at annular accumulation of heat arch middle part; Near accumulation of heat arch place 3 to 5 ash discharging holes 4 are set in the expansion chamber side, the uniform a plurality of tangential overfiren air ports 12 of sidewall of combustion chamber, the expansion chamber sidewall is provided with tangential tertiary air orifice 11.By air inlet 13 respectively to air inlet 1,12, three air inlet 11 air blast of secondary air mouth.Preferred embodiment of the present utility model is: the porous regenerator body of combustion-supporting is intermeshed to pile up by the common refractory brick of multilayer and forms, and makes slit between the brick body be tortuous partition and spends poroid; Also can dust arrester 3 be set communicate with ash discharging hole in the ash discharging hole outside, the bottom of dust arrester is established ash discharging hole and is sealed up a door.The utility model easy manufacturing simple in structure is easy to promote.

Claims (3)

1, a kind of vertical boiler with dedusting energy-saving combustion-supporting, it is characterized in that: this vertical boiler is installed combustion-supporting above the combustion chamber, and make between combustion-supporting and the heat exchanger tube and form expansion chamber, this combustion-supporting is by the annular poultry heat arch that is covered in top of combustion chamber and place the porous poultry hot body on this poultry heat arch top to constitute, porous poultry hot body is made by refractory material, be provided with a plurality of small-sized ducts, lead to outside the poultry hot body by poultry hot body bottom, its opening be distributed in heat storage around and the top, this poultry hot body places on the through hole in the middle part of the annular poultry heat arch; Near the hot arch of poultry place 3 to 5 ash discharging holes are set at the expansion chamber sidewall, the uniform a plurality of tangential overfiren air ports of sidewall of combustion chamber, the sidewall of expansion chamber is provided with tangential tertiary air orifice.

2, the vertical boiler with dedusting energy-saving combustion-supporting according to claim 1 is characterized in that: the porous regenerator body of described combustion-supporting is intermeshed to pile up by the common refractory brick of multilayer and forms, and makes slit between the brick body be tortuous partition and spends poroid.

3, the vertical boiler with dedusting energy-saving combustion-supporting according to claim 2 is characterized in that: communicate with ash discharging hole at ash discharging hole arranged outside dust arrester, the bottom of dust arrester is established ash discharging hole and is sealed up a door.