CN2906448Y - Ternary-burning normal-pressure coal-burning hot water boiler - Google Patents
Ternary-burning normal-pressure coal-burning hot water boiler Download PDFInfo
- Publication number
- CN2906448Y CN2906448Y CN 200520094044 CN200520094044U CN2906448Y CN 2906448 Y CN2906448 Y CN 2906448Y CN 200520094044 CN200520094044 CN 200520094044 CN 200520094044 U CN200520094044 U CN 200520094044U CN 2906448 Y CN2906448 Y CN 2906448Y
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- combustion chamber
- burning
- normal pressure
- coal
- pressure coal
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Abstract
The utility model relates to a hot water boiler, in particular to the normal pressure coal burning hot water boiler with three times of combustion. The flue tube is arranged on the upper part of the boiler body; the ash bin is arranged on the bottom, two combustion chambers are arranged in the lower part of the boiler body; the upper part is cross provided with convection bank of tubes, the two air preheater with longitudinal air inlets are arranged on the side wall surface of the upper combustion chamber; the air preheater near the upper part of inside wall surface of combustion chamber is provided with a plurality of air inlets; the heating temperature of air preheater is greater than or equal to the temperature of the burning point of coal; the tubular type circulating water sleeve is arranged in front of the both sides of combustion chamber and the fume channel is arranged between the external wall surface of air preheater and the internal wall surface of tubular type circulating water sleeve. The temperature of utility model entering the boiler chamber is greater than or equal to the burning point of fuel (coal) after preheating, the dry gas can become combustion in the oxygen enrichment conditions and make negative direction combustion after penetrating the candescent charcoal layer, the entire combustion process (with three stages) can realize full combustion and energy conservation completely and thoroughly.
Description
Technical field:
The utility model relates to boiler.
Background technology:
Present various atmospheric coal-fired boiler burner hearth is outward circular whole cyclic water jacket, be provided with independently secondary combustion chamber in the burner hearth, dog-house is cool air inlet, consider for energy-saving and environmental protection, part makes the more abundant burning of coal for second-time burning, improve the thermal efficiency, yet the burning of coal is with good conditionsi, the one, the amount of participation reactive material (coal, air), the 2nd, react needed temperature.Still there is poor, the halfway problem of burning of thermal chemical reaction condition, flue gas is discharged from flue after the convection bank of neat cross arrangement in addition, because heat is greater than the edge in the middle of the fluid, each heat convection pipe inequality of being heated, moreover the long-time back inner product of using has a large amount of dusts, be distributed in tube bank and combustion chamber internal face, body of heater is an integral body, is difficult to dust out.
Summary of the invention:
Main purpose of the present utility model is to overcome the not thorough problem of burning, and a kind of three burning normal pressure coal-fired hot-water boilers are provided, and three burnings are more thorough, improve heat exchange efficiency in addition more, solve the ash disposal problem in addition, and ash disposal is easy.
The technical scheme that the utility model is adopted for achieving the above object is: three burning normal pressure coal-fired hot-water boilers, upper of furnace body has smoke pipe, grey storehouse is arranged at the bottom, the bottom is provided with two combustion chambers in the body of heater, top cross arrangement convection bank, upper combustion chamber's side wall surface is two air preheaters that have vertical air inlet, air preheater has several combustion chamber air inlets by upper combustion chamber interior sidewall surface top, the air preheater heating-up temperature is more than or equal to the coal ignition temperature, outside, both sides, combustion chamber is the tubular type cyclic water jacket, and air preheater outside wall surface and tubular type cyclic water jacket internal face have exhaust gases passes.
Described upper combustion chamber upper wall surface is a wing shape, and the live body capping is equipped with in the centre.
Described upper combustion chamber water-cooled grate gap and lower combustion chamber air-cooled fire grate gap are than being 4-5: 1, and upper combustion chamber's water-cooled grate is that wing shape is arranged fire grate.
Convection bank is comply with and is dredged close cross arrangement from bottom to top in the described body of heater.
Described body of heater side has side door, and side door and body of heater flexibly connect and sealing.
Be inserted with the flue gas flow equalizing device at interval in the described upper of furnace body convection bank, the flue gas flow equalizing device is to have the thin ends and thick middle plate body that connects support.
Have firecracker on the described smoke pipe and drop into the hole.
The utility model compared with similar products, have outstanding characteristics, the air preheater that square upper combustion chamber is made by the heat-resisting cast iron material both sides, air preheater inwall are subjected to the thermal-radiating effect of coal burning, outer wall is subjected to high-temperature flue gas thermal convection current effect, and itself is heated to higher temperature.Go into furnace chamber warm air temperature 〉=fuel (coal) burning-point after preheating, oxygen molecule kinetic energy is big, diffusion velocity is fast, produce violent " explosion type " burning, dry distillation gas at first burns under excess oxygen, and passes through the vehement hotbed of carbon, reverse burning, stop (burning) and have plenty of time the possibility of no free charcoal effusion body of heater.The reverse heating of coke that the heat energy that the dry distillation gas that is easy to burn discharges will be difficult to burn making to be difficult to burning and to become and be easy to burning.Whole combustion process (three phases) realizes sufficient combustion, complete, thorough, energy savings.Air preheater is subjected to the cooling of air at room temperature, keeps cold---and thermal balance guarantees and the same life-span of boiler body.The flue gas that coal burning produced (body) through 4 times 90 ° turn back, and slow down in air preheater external vertical section flow velocity, rely on gravity natural separation, gravity " collision " to separate, make the smoke dust discharge concentration of coming out of the stove extremely low, realize that environment protection standard discharges.Larger particles dust spontaneous current is fallen lower combustion chamber, with slag removal, directly removes or opens " live body capping " than fine dust from ash removing opening and become scattered about upper combustion chamber, in the body of heater negative pressure hour, falls into lower combustion chamber and comes out of the stove with slag.The stagger arrangement of convection current convection bank macroscopic view fork-shaped, reduces between tubulation in the constantly loss and " concentrate " to the nature in chimney exit of the heat energy of uphill process with flue gas thereupon, corresponding " increases " flue gas flow rate, raising convection heat transfer' heat-transfer by convection effect, increase heat transfer efficiency.Activity is provided with heat-resisting, corrosion-resistant flue gas flow equalizing device, flow distribution is even everywhere in the pot body to make flue gas, and each heat-transfer surface is heated evenly, and improves the heat-transfer surface utilization rate, increases heat exchanger effectiveness.The body of heater both sides are provided with " body of heater side door " and are convenient to maintenance, change the cleaning scrubbing of flue gas flow equalizing device and heat-transfer surface, remove thermal resistance, keep heat exchanger effectiveness.The body of heater outside adds heat-insulation layer, avoids body of heater radiation loss, energy-conservation.Be provided with in " firecracker ash disposal mouth ", can be placed in the stove in service small-sized fireworks and firecrackers is lighted at any time, its shaking force (shock wave) that is produced that explodes can make the long-pending dust of inboard wall of furnace body fall, and gets rid of with slag, dispels thermal resistance simultaneously, keeps heat exchanger effectiveness.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is an A-A view among Fig. 1.
Fig. 3 is an A1-A1 view among Fig. 2.
Fig. 4 is a B-B view among Fig. 1.
Fig. 5 is the air heat exchanger structural representation.
Fig. 6 is a flue gas flow equalizing device structural representation.
Fig. 7 is A ' among Fig. 6-A ' view.
The specific embodiment:
Three burning normal pressure coal-fired hot-water boilers shown in Fig. 1-4, deashing hand hole 3 is arranged at fire resistant heat preserving body of heater 5 upper coal feeding mouths 8 tops, smoke pipe 1 is arranged at body of heater 5 tops, have firecracker on the smoke pipe and drop into hole 2, grey storehouse 10 is arranged at the bottom, the body of heater side has side door 6, side door and body of heater are flexibly connected and sealing by buckle 7, the bottom is provided with two combustion chambers in the body of heater, combustion chamber upper wall surface 18 is a wing shape, live body capping 14 is equipped with in the centre, and upper combustion chamber's water-cooled grate 16 gaps and lower combustion chamber air-cooled fire grate 17 gaps are than being 4-5: 1, and upper combustion chamber's water-cooled grate is that wing shape is arranged fire grate.The upper of furnace body convection bank is pressed from dredging to close cross arrangement from bottom to top, A＞B＞C＞D; A＞b＞c＞d＞... A＞A1, B＞B1, C＞C1 ..., being spaced a distance in the convection bank 13 is inserted with flue gas flow equalizing device 11, and the flue gas flow equalizing device is to have thin ends and thick middle heat-resisting, the corrosion-resistant plate body that connects support.Upper combustion chamber's side wall surface is two air preheaters 9 that have vertical air inlet 20, air preheater has several uniform combustion chamber air inlets 15 by upper combustion chamber interior sidewall surface top, air preheater both sides outside wall surface is heat absorption fin 21, absorb in the combustion chamber and the heat in the flue, the air preheater heating-up temperature is more than or equal to the coal ignition temperature, the outside, combustion chamber is a tubular type cyclic water jacket 19, between air preheater outside wall surface and tubular type cyclic water jacket internal face exhaust gases passes is arranged.Four faces in combustion chamber are thermal insulating warm-keeping layer 12, establish best basis for realizing thermal chemical reaction temperature conditions (environment).Can directly visually go up lower combustion chamber's carbon layer, burning progress, situation etc. by " the transparent charge door of boiler " (having obtained patent) that special pyroceram is made.
During work, coal is rendered on upper combustion chamber's water-cooled grate tube, under the control of " an air distribution valve plate 4 ", be heated to about 450～500 ℃, enter charcoal layer top by some (all bodies) air vent through air preheater from the cold air of room temperature." overfire air " that surpasses the coal burning-point at first and dry distillation gas (fugitive constituent) (gas phase) between coal cinder slit, charcoal layer top send out last burning.CmHn+O
2--＞CO
2+ H
2O, the burning heat release sharply raises charcoal layer temperature, the flue gas of heat, oxygen (sky) gas more than needed is subjected to the effect of negative pressure in the stove, passes through the charcoal fire layer downwards, and oxygen more than needed is diffused into the surface of charcoal, and second-time burning C+O takes place
2--＞CO
2Because upper combustion chamber's water-cooled grate ligament is bigger, lower combustion chamber air-cooled casting furnace grate gap is less, and upper combustion chamber's larger particles carbon residue (fire) falls naturally, or manually stirs to lower combustion chamber's continuation generation three times " air distribution burning ".Sufficient combustion, complete, thorough, energy savings.High-temperature gas (CO
2, N
2Deng) vertically downward, turn back to both sides behind the Gravity Separation larger particles dust, on the air preheater lateral, serpentine rises and boiler between the slit of the heat convection pipe (bundle) of the fork-shaped stagger arrangement that enters pot body portion of turning back again.
Claims (8)
1, three burning normal pressure coal-fired hot-water boilers, upper of furnace body has smoke pipe, grey storehouse is arranged at the bottom, the bottom is provided with two combustion chambers in the body of heater, top cross arrangement convection bank, it is characterized in that: upper combustion chamber's side wall surface is for having two air preheaters (9) of vertical air inlet (20), air preheater has several combustion chamber air inlets (15) by upper combustion chamber interior sidewall surface top, the air preheater heating-up temperature is more than or equal to the coal ignition temperature, the outside, combustion chamber is tubular type cyclic water jacket (19), between air preheater outside wall surface and tubular type cyclic water jacket internal face exhaust gases passes is arranged.
2, three burning normal pressure coal-fired hot-water boilers according to claim 1, it is characterized in that: upper combustion chamber's upper wall surface (18) is wing shape, and live body capping (14) is equipped with in the centre.
3, three burning normal pressure coal-fired hot-water boilers according to claim 1, it is characterized in that: the air-cooled fire grate in upper combustion chamber's water-cooled grate (16) gap and lower combustion chamber (17) gap is than being 4-5: 1.
4, three burning normal pressure coal-fired hot-water boilers according to claim 1, it is characterized in that: upper combustion chamber's water-cooled grate (16) is arranged fire grate for wing shape.
5, three burning normal pressure coal-fired hot-water boilers according to claim 1, it is characterized in that: the interior convection bank of body of heater (5) (13) is comply with and is dredged close cross arrangement from bottom to top.
6, three burning normal pressure coal-fired hot-water boilers according to claim 1, it is characterized in that: the body of heater side has side door (6), and side door and body of heater flexibly connect and sealing.
7, three burning normal pressure coal-fired hot-water boilers according to claim 1, it is characterized in that: be inserted with flue gas flow equalizing device (11) at interval in the upper of furnace body convection bank, the flue gas flow equalizing device is to have the thin ends and thick middle plate body that connects support.
8, three burning normal pressure coal-fired hot-water boilers according to claim 1 is characterized in that: have firecracker on the smoke pipe and drop into hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520094044 CN2906448Y (en) | 2005-12-01 | 2005-12-01 | Ternary-burning normal-pressure coal-burning hot water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520094044 CN2906448Y (en) | 2005-12-01 | 2005-12-01 | Ternary-burning normal-pressure coal-burning hot water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906448Y true CN2906448Y (en) | 2007-05-30 |
Family
ID=38115085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520094044 Expired - Fee Related CN2906448Y (en) | 2005-12-01 | 2005-12-01 | Ternary-burning normal-pressure coal-burning hot water boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2906448Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676616A (en) * | 2014-06-24 | 2015-06-03 | 芜湖恒诺能源技术有限公司 | Flue cleaning method |
-
2005
- 2005-12-01 CN CN 200520094044 patent/CN2906448Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676616A (en) * | 2014-06-24 | 2015-06-03 | 芜湖恒诺能源技术有限公司 | Flue cleaning method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 Termination date: 20101201 |