CN104848211A - Gas boiler - Google Patents
Gas boiler Download PDFInfo
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- CN104848211A CN104848211A CN201510311697.9A CN201510311697A CN104848211A CN 104848211 A CN104848211 A CN 104848211A CN 201510311697 A CN201510311697 A CN 201510311697A CN 104848211 A CN104848211 A CN 104848211A
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- airduct
- secondary oxygen
- boiler
- oxygen
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Abstract
The invention belongs to the field of gas equipment and in particularly relates to a gas boiler. The gas boiler is fully adaptive to the characteristic of hot and dirty gas; as proven through operation and test, the production and living requirements can be fully met; the gas boiler is simple in structure, low in cost, convenient to manufacture, mount and use, little in flue gas during usage and high in combustion temperature and efficiency, and non-flame combustion is realized; during operation, oxygen is surrounded by circulating flue gas and the oxidation and decarbonization of the material in a boiler body are prevented; the operation temperature and temperature inside the boiler body are effectively controlled; the service life of the gas boiler is prolonged under the high-temperature and pure oxygen condition; the gas boiler has relatively high economic and social benefits.
Description
Technical field
The invention belongs to gas-fired equipment field, particularly relate to a kind of gas fired-boiler.
Background technology
Multitubular boiler and water-tube boiler is divided into by the body construction of boiler.Multitubular boiler is divided into vertical boiler and horizontal boiler.Vertical boiler is divided into vertical boiler with horizontal water tubes, vertical type lateral multitubular boiler, vertical pair of pass fire pipe boiler, vertical vertical water-tube boiler.Horizontal boiler is divided into: horizontal single flue (dual-furnace-chamber) boiler, horizontal internal combustion three-pass boiler, horizontal internal combustion four pass boiler, horizontal external combustion economic boiler.Water-tube boiler is divided into tranverse water tube boiler and vertical water pipe boiler.Tranverse water tube boiler is divided into: vertical type lateral straight water pipe boiler and the straight homogeneous solution-type reactor of sub-header.Vertical water pipe boiler is divided into: two drum longitudinal D shape bent tube boiler, double boiler pressure-bearing type boiler, three drum bent tube boilers, single boiler herringbone water-tube boiler.Be divided into by the comburant (-rent) kind of boiler: coal-burning boiler (comprising coal cinder, coal dust, coal-fired water slurry), oil burning boiler and gas fired-boiler.Wherein the fuel of gas fired-boiler is mainly the artificial coal gas etc. after natural gas, oil liquefied gas, biogas, coke-stove gas, cooling and purifying.
Along with development that is economic and science and technology, with efficient, clean, that the few gas fired-boiler for principal character of pollution progressively the enters users selection visual field, but global energy is in short supply at present, the fuel price such as natural gas, oil liquefied gas is high, gas fired-boiler operating cost remains high, heavy financial burden is brought to user, limit widely using of gas fired-boiler, select one or more high-quality low-costs, meet country and more metropolitan environmental protection policy fuel and adapt to the gas fired-boiler of several fuel and burner become the current users of China in the urgent need to.
In existing combustion technology, because burning result in a large amount of carbon dioxide, the discharge of nitrogen oxide, great impact is caused on environment, causes global greenhouse effects.Along with the development of combustion technology, novel Pure Oxygen Combustion Technology significantly will reduce the discharge of combustion process percent of greenhouse gases, virtually production cost can be being increased for burning owing to manufacturing pure oxygen, and Oxygen venting a large amount of in iron and steel metallurgical industry result in the waste of the energy, therefore oxygen excessive in iron and steel metallurgical industry is used for pure oxygen burning and there is important economy and technological value.At present, the domestic correlative study for Pure Oxygen Combustion Technology is less, and the pure oxygen combustor that can be applied to pure oxygen burning is less.Therefore, design a kind of novel pure oxygen burning environment protection type gas boiler and will have good market prospects.
Summary of the invention
The present invention is directed to the deficiency that above-mentioned prior art exists, the gas fired-boiler of a kind of pure oxygen burning, environmental protection is provided.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of gas fired-boiler, comprise body of heater, its special character is, corrugated flue is provided with in described body of heater, described body of heater front end is provided with movable front smoke chamber, body of heater rear end is provided with movable rear smoke chamber, and leading between described movable front smoke chamber and described corrugated flue has pure oxygen combustor; Described pure oxygen combustor comprises base and ventilating mechanism, and described ventilating mechanism is made up of primary oxygen airduct, secondary oxygen airduct, combustion gas airduct, secondary oxygen pressure stabilizing cavity, gas stabilized-pressure chamber, cyclone and fume pipe; The middle part of described base is provided with through hole, the inner of described secondary oxygen airduct is passed through hole, is fixed on base, the outer end of described secondary oxygen airduct is connected with described secondary oxygen pressure stabilizing cavity, and described secondary oxygen pressure stabilizing cavity is provided with secondary oxygen intake pipe; The inner of described combustion gas airduct is passed described secondary oxygen pressure stabilizing cavity, is arranged in described secondary oxygen airduct, and the outer end of described combustion gas airduct is connected with described gas stabilized-pressure chamber, and described gas stabilized-pressure chamber is provided with gas inlet pipe; The inner of described primary oxygen airduct, successively through described gas stabilized-pressure chamber and combustion gas airduct, the lateral wall of the primary oxygen airduct in described secondary oxygen airduct is provided with described cyclone; Described base is provided with the smoke pipe hole that several tilt, and described fume pipe is arranged on base by smoke pipe hole.
The invention has the beneficial effects as follows: gas fired-boiler of the present invention can adapt to the feature of hot dirty gas completely, operation and test show to meet production and living needs completely; And structure is simple, with low cost, manufacture, install, use all convenient, during use, exhaust gas volumn is few, and ignition temperature is high, and efficiency of combustion is high, achieves flameless combustion, and during work, circulating flue gas parcel oxygen, prevents oxidation and the decarburization of material in body of heater; Effectively control temperature in its operating temperature and body of heater, under high temperature, pure oxygen condition, extend service life, there is stronger economic benefit and social benefit.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described secondary oxygen pressure stabilizing cavity is tubular construction, and its diameter is greater than the diameter of secondary oxygen airduct; Described secondary oxygen intake pipe is arranged on the end face of secondary oxygen pressure stabilizing cavity away from secondary oxygen airduct.
Further, described gas stabilized-pressure chamber is tubular construction, and its diameter is greater than the diameter of combustion gas airduct; Described gas inlet pipe is arranged on the end face of gas stabilized-pressure chamber away from combustion gas airduct.
Further, described primary oxygen airduct, secondary oxygen airduct and fume pipe stretch in described corrugated flue.
Further, described body of heater is horizontal internal combustion three backhaul gas fired-boiler body of heater.
Further, the connected mode of described front smoke chamber and rear smoke chamber and described body of heater is hinged.
The beneficial effect of above-mentioned further scheme is adopted to be, in combustion process, the dust contained in flue gas and impurity more, laying dust is easy in horizontal internal combustion three backhaul gas fired-boiler body of heater, the thermal efficiency of gas combustion can be had influence on, fixedly change into movable by original, front smoke chamber and rear smoke chamber can be easy to open, the dust of its inside is cleared up.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure, 1, body of heater; 2, corrugated flue; 3, front smoke chamber; 4, rear smoke chamber; 5, primary oxygen airduct; 6, secondary oxygen airduct; 7, combustion gas airduct; 8, secondary oxygen intake pipe; 9, gas inlet pipe; 10, secondary oxygen pressure stabilizing cavity; 11, gas stabilized-pressure chamber; 12, cyclone; 13, fume pipe; 14, base; 15, through hole; 16, smoke pipe hole.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with example, example, only for explaining the present invention, is not intended to limit scope of the present invention.
A kind of gas fired-boiler, comprise body of heater 1, its special character is, corrugated flue 2 is provided with in described body of heater 1, described body of heater 1 front end is provided with movable front smoke chamber 3, and body of heater 1 rear end is provided with movable rear smoke chamber 4, and leading between described front smoke chamber 3 and described corrugated flue 2 has pure oxygen combustor; Described pure oxygen combustor comprises base 14 and ventilating mechanism, and described ventilating mechanism is made up of primary oxygen airduct 5, secondary oxygen airduct 6, combustion gas airduct 7, secondary oxygen pressure stabilizing cavity 10, gas stabilized-pressure chamber 11, cyclone 12 and fume pipe 13; The middle part of described base 14 is provided with through hole 15, the inner of described secondary oxygen airduct 6 is passed through hole 15, is fixed on base 14, the outer end of described secondary oxygen airduct 6 is connected with described secondary oxygen pressure stabilizing cavity 10, and described secondary oxygen pressure stabilizing cavity 10 is provided with secondary oxygen intake pipe 8; The inner of described combustion gas airduct 7 is passed described secondary oxygen pressure stabilizing cavity 10, is arranged in described secondary oxygen airduct 6, and the outer end of described combustion gas airduct 7 is connected with described gas stabilized-pressure chamber 11, and described gas stabilized-pressure chamber 11 is provided with gas inlet pipe 9; The inner of described primary oxygen airduct 5, successively through described gas stabilized-pressure chamber 11 and combustion gas airduct 7, the lateral wall of the primary oxygen airduct 5 in described secondary oxygen airduct 6 is provided with described cyclone 12; Described base 14 is provided with the smoke pipe hole 16 that several tilt, and described fume pipe 13 is arranged on base 14 by smoke pipe hole 16.
Described secondary oxygen pressure stabilizing cavity 10 is tubular construction, and its diameter is greater than the diameter of secondary oxygen airduct 6; Described secondary oxygen intake pipe 8 is arranged on the end face of secondary oxygen pressure stabilizing cavity 10 away from secondary oxygen airduct 6.
Described gas stabilized-pressure chamber 11 is tubular construction, and its diameter is greater than the diameter of combustion gas airduct 7; Described gas inlet pipe 9 is arranged on the end face of gas stabilized-pressure chamber 11 away from combustion gas airduct 7.
Described primary oxygen airduct 5, secondary oxygen airduct 6 and fume pipe 13 stretch in described corrugated flue 2.
Described body of heater 1 is horizontal internal combustion three backhaul gas fired-boiler body of heater.
Described front smoke chamber 3 and rear smoke chamber 4 are hinged with the connected mode of described body of heater 1.
The present invention uses like this, by oxygen more than needed in steel production enterprise blast furnace production process stored in the first air accumulator, first air accumulator is connected with primary oxygen airduct by the first gas pipeline, first air accumulator is connected with secondary oxygen intake pipe by the second gas pipeline, fuel cartridge is connected with gas inlet pipe by the 3rd gas pipeline, first, second, third gas pipeline is provided with gas flow regulating valve; High-temperature flue gas gas combustion in body of heater generated is stored in the second air accumulator after super-dry process, and be convenient to recycle, the second air accumulator is connected with fume pipe by the 4th gas pipeline, and the 4th gas pipeline is provided with valve.
During use, the flow of the oxygen in body of heater, combustion gas is entered by gas flow regulating valve control, thus the two stoichiometric ratio in control combustion process, i.e. gas flow: oxygen flow=1:1.2, prepare for carrying out pure oxygen burning, because combustion gas liquid gasification in fuel cartridge forms, therefore temperature is lower, has cooling effect; Open cyclone, reinforcement combustion gas enters disturbance during body of heater, makes oxygen and combustion gas fully dilute, mix, reduces concentration gradient, to carry out flameless combustion.
Open valve, the circulating flue gas of high temperature enters in body of heater by fume pipe, the mist (oxygen, combustion gas) in instantaneous ignition stove, circulating flue gas effectively improves and penetrates heat transfer rate, strengthen heat exchange, finally improve the thermal efficiency, thus reach energy-saving and cost-reducing object; In addition, by the use of circulating flue gas, final exhaust gas volumn is reduced, conveniently carry out the trapping of carbon, reduce greenhouse gases---the discharge of carbon dioxide, reach the object of environmental protection; In combustion, spray into because circulating flue gas is oblique in body of heater, the concentration gradient upsetting combustion gas and oxygen mix point distributes, and strengthens disturbance, makes combustion gas and the abundant rapid mixing of oxygen, reach the object of homogenising, disperseed the distribution of flame kernel, thus achieved nonflame pure oxygen burning, its product is mainly carbon dioxide and water, do not produce nitrogen oxide, safety, environmental protection.
In use, front smoke chamber and rear smoke chamber can be easy to open, the dust of its inside is cleared up.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a gas fired-boiler, comprises body of heater, it is characterized in that, corrugated flue is provided with in described body of heater, described body of heater front end is provided with movable front smoke chamber, and body of heater rear end is provided with movable rear smoke chamber, and leading between described movable front smoke chamber and described corrugated flue has pure oxygen combustor; Described pure oxygen combustor comprises base and ventilating mechanism, and described ventilating mechanism is made up of primary oxygen airduct, secondary oxygen airduct, combustion gas airduct, secondary oxygen pressure stabilizing cavity, gas stabilized-pressure chamber, cyclone and fume pipe; The middle part of described base is provided with through hole, the inner of described secondary oxygen airduct is passed through hole, is fixed on base, the outer end of described secondary oxygen airduct is connected with described secondary oxygen pressure stabilizing cavity, and described secondary oxygen pressure stabilizing cavity is provided with secondary oxygen intake pipe; The inner of described combustion gas airduct is passed described secondary oxygen pressure stabilizing cavity, is arranged in described secondary oxygen airduct, and the outer end of described combustion gas airduct is connected with described gas stabilized-pressure chamber, and described gas stabilized-pressure chamber is provided with gas inlet pipe; The inner of described primary oxygen airduct, successively through described gas stabilized-pressure chamber and combustion gas airduct, the lateral wall of the primary oxygen airduct in described secondary oxygen airduct is provided with described cyclone; Described base is provided with the smoke pipe hole that several tilt, and described fume pipe is arranged on base by smoke pipe hole.
2. gas fired-boiler according to claim 1, is characterized in that, described secondary oxygen pressure stabilizing cavity is tubular construction, and its diameter is greater than the diameter of secondary oxygen airduct; Described secondary oxygen intake pipe is arranged on the end face of secondary oxygen pressure stabilizing cavity away from secondary oxygen airduct.
3. gas fired-boiler according to claim 1, is characterized in that, described gas stabilized-pressure chamber is tubular construction, and its diameter is greater than the diameter of combustion gas airduct; Described gas inlet pipe is arranged on the end face of gas stabilized-pressure chamber away from combustion gas airduct.
4. gas fired-boiler according to claim 1, is characterized in that, described primary oxygen airduct, secondary oxygen airduct and fume pipe stretch in described corrugated flue.
5. gas fired-boiler according to claim 1, is characterized in that, described body of heater is horizontal internal combustion three backhaul gas fired-boiler body of heater.
6. gas fired-boiler according to claim 1, is characterized in that, the connected mode of described front smoke chamber and rear smoke chamber and described body of heater is hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311697.9A CN104848211A (en) | 2015-06-09 | 2015-06-09 | Gas boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311697.9A CN104848211A (en) | 2015-06-09 | 2015-06-09 | Gas boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104848211A true CN104848211A (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510311697.9A Pending CN104848211A (en) | 2015-06-09 | 2015-06-09 | Gas boiler |
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| CN (1) | CN104848211A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841142A (en) * | 2016-05-24 | 2016-08-10 | 大震锅炉工业（昆山）有限公司 | Efficient low-heating-value gas combustion boiler |
| CN109579534A (en) * | 2018-12-03 | 2019-04-05 | 宁波力芯科信息科技有限公司 | A kind of flameless burning heater based on heat exchange |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040074427A1 (en) * | 2002-05-15 | 2004-04-22 | Hisashi Kobayashi | Low NOx combustion |
| CN101476726A (en) * | 2009-01-14 | 2009-07-08 | 河北工业大学 | High-temperature low-oxygen combustor |
| CN101975448A (en) * | 2010-05-14 | 2011-02-16 | 安阳方快锅炉有限公司 | Horizontal shell boiler |
| CN102635848A (en) * | 2012-05-03 | 2012-08-15 | 山东耐火材料集团有限公司 | Hot and dirty coal gas boiler |
| CN104296142A (en) * | 2014-09-28 | 2015-01-21 | 东北大学 | Fuel gas flame-free pure oxygen burner |
| CN204693393U (en) * | 2015-06-09 | 2015-10-07 | 洪百聪 | A kind of gas fired-boiler |
-
2015
- 2015-06-09 CN CN201510311697.9A patent/CN104848211A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040074427A1 (en) * | 2002-05-15 | 2004-04-22 | Hisashi Kobayashi | Low NOx combustion |
| CN101476726A (en) * | 2009-01-14 | 2009-07-08 | 河北工业大学 | High-temperature low-oxygen combustor |
| CN101975448A (en) * | 2010-05-14 | 2011-02-16 | 安阳方快锅炉有限公司 | Horizontal shell boiler |
| CN102635848A (en) * | 2012-05-03 | 2012-08-15 | 山东耐火材料集团有限公司 | Hot and dirty coal gas boiler |
| CN104296142A (en) * | 2014-09-28 | 2015-01-21 | 东北大学 | Fuel gas flame-free pure oxygen burner |
| CN204693393U (en) * | 2015-06-09 | 2015-10-07 | 洪百聪 | A kind of gas fired-boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841142A (en) * | 2016-05-24 | 2016-08-10 | 大震锅炉工业（昆山）有限公司 | Efficient low-heating-value gas combustion boiler |
| CN109579534A (en) * | 2018-12-03 | 2019-04-05 | 宁波力芯科信息科技有限公司 | A kind of flameless burning heater based on heat exchange |
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| EXSB | Decision made by sipo to initiate substantive examination | ||
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Application publication date: 20150819 |