CN102635848B - Hot and dirty coal gas boiler - Google Patents
Hot and dirty coal gas boiler Download PDFInfo
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- CN102635848B CN102635848B CN201210134456.8A CN201210134456A CN102635848B CN 102635848 B CN102635848 B CN 102635848B CN 201210134456 A CN201210134456 A CN 201210134456A CN 102635848 B CN102635848 B CN 102635848B
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Abstract
The invention relates to a gas boiler, and in particular relates to a hot and dirty coal gas boiler which comprises a horizontal-type internal combustion three-return-stroke gas boiler body, wherein the horizontal-type internal combustion three-return-stroke gas boiler body is internally provided with a corrugated furnace liner. The hot and dirty coal gas boiler is characterized in that the front end of the horizontal-type internal combustion three-return-stroke gas boiler body is provided with a movable front smoke chamber; the rear end of the horizontal-type internal combustion three-return-stroke gas boiler body is provided with a movable rear smoke chamber; a burner is communicated between the movable front smoke chamber and the corrugated furnace liner, and the length of the burner positioned in the corrugated furnace liner is 1/4-1/3 of the length of the corrugated furnace liner. Compared with the prior art, the hot and dirty coal gas boiler can be completely suitable for characteristics of hot and dirty coal gas, the operation and testing indicate that hot and dirty coal gas boiler completely meets the production and life needs, the economic benefit is obvious, the gas boiler application data is great, and the hot and dirty coal gas boiler has important popularization value.
Description
Technical field
The present invention relates to a kind of gas fired-boiler, be specifically related to a kind of hot dirty gas 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.
China is a big coal country, there are abundant reserves, manufacture and design to coal-burning boiler and use and provide wide market, but coal-burning boiler efficiency low (about 60% ~ 80%), pollute heavy, to reduce discharging by national energy-saving and compared with the impact of big city environmental protection policy and constraint, below 20T/h coal-burning boiler progressively enters superseded row.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, the fuel meeting country and more metropolitan environmental protection policy and the gas fired-boiler adapting to several fuel and burner become the current users of China in the urgent need to.
Producer gas: with coal or coke for gasified raw material, air and water vapour are gasifying agent, the coal gas of gas generator manufacture is utilized to be called producer gas, because of imperfect combustion, the coal gas of output contains more dust and coal dust, contains a small amount of coal tar and separate out during low temperature, therefore producer gas is commonly called as again as " hot dirty gas ", producer gas is explosive, inflammable, poisonous, belongs to low heat value gas.
Blast furnace gas: blast furnace gas is the byproduct produced in ironmaking processes, and main component is: CO, CO
2, N
2, H
2, CH
4deng, wherein combustible component CO content accounts for about 25%, H
2, CH
4content little, CO
2, N
2content account for 15%, 55% respectively, calorific value is only 3500KJ/m
3left and right.Belong to " hot dirty gas " of low heat value gas.Blast furnace gas, can be used in combination with coke-stove gas because calorific value is low.
Producer gas and blast furnace gas are widely used in industries such as China's metallurgy, chemical industry, pottery, building materials, and blast furnace gas is especially extensive in application such as Iron and Steel Enterprises in China.Domestic and international about producing boiler and burner producer and using client and found by internet retrieval by inquiry, do not have an example to supply user and the example of gas fired-boiler burning with " hot dirty gas " at present both at home and abroad.
Summary of the invention
The object of this invention is to provide a kind of hot dirty gas gas fired-boiler, to adapt to the use of the hot dirty gas such as producer gas and blast furnace gas fuel, thus alleviate the in short supply of the energy, adapt to the actual needs of China's economy and society.
A kind of hot dirty gas gas fired-boiler of the present invention, comprise horizontal internal combustion three backhaul gas fired-boiler body of heater, horizontal internal combustion three backhaul gas fired-boiler body of heater is built-in with corrugated flue, horizontal internal combustion three backhaul gas fired-boiler body of heater front end is provided with movable front smoke chamber, rear end is provided with movable rear smoke chamber, lead between movable front smoke chamber and corrugated flue and have burner, the burner length being positioned at corrugated flue is 1/4 ~ 1/3 of corrugated flue length.
The corrugated flue length of horizontal internal combustion three backhaul gas fired-boiler is longer, producer gas pressure is low, utilize existing coal gas burner, flame is short, be fixed on horizontal internal combustion three backhaul gas fired-boiler front end or partly stretch in stove, length is shorter, obviously can not meet the feature that hot dirty gas gas fired-boiler has corrugated flue burning.Therefore, in the present invention, burner length is 1/4 ~ 1/3 of corrugated flue length.
Wherein, due to employing is that hot dirty gas is as fuel, in the flue gas produced the dust that contains 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, therefore, the front and back smoke-box of horizontal internal combustion three backhaul gas fired-boiler body of heater by original fixed change into movable, movable front smoke chamber and movable rear smoke chamber can be easy to open, the dust of its inside is cleared up.The connected mode of movable front smoke chamber and movable rear smoke chamber and horizontal internal combustion three backhaul gas fired-boiler body of heater is preferably hinged.
Preferably dust-exhausting port is provided with bottom described movable front smoke chamber and movable rear smoke chamber.The arranging of dust-exhausting port can facilitate in use a part of dust directly to discharge from bottom, thus take in sail front smoke chamber and movable rear smoke chamber open number of times.
Described movable rear smoke chamber is preferably provided with explosion-protection equipment.Often can there is gas burst in tail gas, therefore explosion-protection equipment is set in movable rear smoke chamber, the production caused because exploding can be avoided to stop work, thus improve production efficiency.
The position that described movable front smoke chamber contacts with horizontal internal combustion three backhaul gas fired-boiler body of heater with movable rear smoke chamber is preferably provided with sealing ring, can increase sealing.
Described burner preferably makes of heat-resistance stainless steel, thus adapts to hot environment and the air current composition of horizontal internal combustion three backhaul gas fired-boiler furnace interior.
The present invention also to meet in use following some: (1) hot dirty gas will carry out physical dedusting through the equipment such as dust removing funnel, cyclone dust collectors in advance; (2) want the distance of shortening heat crude gas supply line, make boiler room as far as possible near gas station or blast furnace gas pipeline, thus ensure admission pressure and temperature.
The invention has the advantages that: (1) compared with prior art, can adapt to the feature of hot dirty gas completely, operation and test show to meet production and living needs completely; (2) economic benefit: by current domestic natural gas tax included price 2.4 ~ 2.6 yuan/Nm
3, calorific value 8500 ~ 9500Kcal/Nm
3, the producer gas tax included price 0.3 yuan/Nm that my company produces at present
3, calorific value 1250Kcal/Nm
3, both compare heating value of natural gas is producer gas 6 ~ 8 times, and Gas Prices is producer gas 10 ~ 12 times, consumes producer gas 1200Nm with hot dirty gas gas fired-boiler
3/ h is example, consumes producer gas every year: 1200 × 24 × 365=10512000Nm
3, according to the equal conversion of heat, consume natural gas every year: 10512000 × 1250/8500=1545882Nm
3annual cost saving: 1545882 × 2.6-10512000 × 0.3=865693.2 unit.Blast furnace gas, at iron and steel enterprise's cheaper, uses more convenient, remarkable in economical benefits; (3) social benefit: global energy is in short supply now, and hold at high price, country advocates energy-saving and emission-reduction energetically, competition among enterprises is day by day fierce, reduces costs, and adapts to China's economy and social actual needs, gas fired-boiler number of applications is huge, and the present invention has important promotional value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1, horizontal internal combustion three backhaul gas fired-boiler body of heater 2, corrugated flue 3, movable front smoke chamber 4, movable rear smoke chamber 5, burner.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1:
As shown in Figure 1, hot dirty gas gas fired-boiler described in the present embodiment, comprise horizontal internal combustion three backhaul gas fired-boiler body of heater 1, horizontal internal combustion three backhaul gas fired-boiler body of heater 1 is built-in with corrugated flue 2, horizontal internal combustion three backhaul gas fired-boiler body of heater 1 front end is provided with movable front smoke chamber 3, rear end is provided with movable rear smoke chamber 4, and leading between movable front smoke chamber 3 and corrugated flue 2 has burner 5, and burner 5 length being positioned at corrugated flue 2 is 1/3 of corrugated flue 2 length.
Wherein, due to employing is that hot dirty gas is as fuel, in the flue gas produced the dust that contains and impurity more, laying dust is easy in horizontal internal combustion three backhaul gas fired-boiler body of heater 1, the thermal efficiency of gas combustion can be had influence on, therefore, the front and back smoke-box of horizontal internal combustion three backhaul gas fired-boiler body of heater 1 by original fixed change into movable, movable front smoke chamber 3 and movable rear smoke chamber 4 can be easy to open, the dust of its inside is cleared up.Movable front smoke chamber 3 and movable rear smoke chamber 4 are hinged with the connected mode of horizontal internal combustion three backhaul gas fired-boiler body of heater 1.
Dust-exhausting port is provided with bottom described movable front smoke chamber 3 and movable rear smoke chamber 4.The arranging of dust-exhausting port can facilitate in use a part of dust directly to discharge from bottom, thus take in sail front smoke chamber 3 and movable rear smoke chamber 4 open number of times.
Described movable rear smoke chamber 4 is provided with explosion-protection equipment.Often can there is gas burst in tail gas, therefore explosion-protection equipment is set in movable rear smoke chamber 4, the production caused because exploding can be avoided to stop work, thus improve production efficiency.
The position that described movable front smoke chamber 3 contacts with horizontal internal combustion three backhaul gas fired-boiler body of heater 1 with movable rear smoke chamber 4 is provided with sealing ring, can increase sealing.
Described burner 5 selects heat-resistance stainless steel to make, thus adapts to hot environment and the air current composition of horizontal internal combustion three backhaul gas fired-boiler body of heater 1 inside.
For making full use of coal resources in China and meeting environmental requirement, my company adopts Yangquan anthracite block coal as gasified raw material.
The quality requirement of Yangquan anthracite block coal is:
Low heat value: kcal/kg 6280
Fugitive constituent: % 8.00
Ash burning-point: DEG C 1150
Carbon: % 67.70
Hydrogen: % 3.10
Oxygen: % 4.70
Nitrogen: % 1.0
Sulphur: % < 0.7%
Ash: % 16.80
Work moisture content: % 6.0
The technical indicator of producer gas is as follows: calorific value: 5000kJ/Nm
3left and right
| Composition | CO 2 | H 2S | C mH n | O 2 | CO | H 2 | CH 4 | N 2 |
| ％ | 5.86 | 0.3 | 24.16 | 14.62 | 1.25 | 53.61 |
Adopt the gas outlet temperature 550 DEG C that TG-3MI gas generator is produced, outlet pressure 1.47 ~ 2.45Kpa.
Utilize above-mentioned producer gas as hot dirty gas gas fired-boiler fuel, by with coal-burning boiler and gas fired-boiler comparing calculation, measuring the thermal efficiency is 78 ~ 82%, exceed original coal-burning boiler thermal efficiency (being generally 70 ~ 75%), close to gas fired-boiler (being generally 82 ~ 89%).
Claims (6)
1. a hot dirty gas gas fired-boiler, comprise horizontal internal combustion three backhaul gas fired-boiler body of heater, horizontal internal combustion three backhaul gas fired-boiler body of heater is built-in with corrugated flue, it is characterized in that horizontal internal combustion three backhaul gas fired-boiler body of heater front end is provided with movable front smoke chamber, rear end is provided with movable rear smoke chamber, lead between movable front smoke chamber and corrugated flue and have burner, the burner length being positioned at corrugated flue is 1/4 ~ 1/3 of corrugated flue length.
2., according to the hot dirty gas gas fired-boiler described in claim 1, it is characterized in that the connected mode of movable front smoke chamber and movable rear smoke chamber and horizontal internal combustion three backhaul gas fired-boiler body of heater is hinged.
3., according to the hot dirty gas gas fired-boiler described in claim 1, it is characterized in that being provided with dust-exhausting port bottom movable front smoke chamber and movable rear smoke chamber.
4., according to the hot dirty gas gas fired-boiler described in claim 1, it is characterized in that movable rear smoke chamber is provided with explosion-protection equipment.
5., according to the hot dirty gas gas fired-boiler described in claim 1, it is characterized in that the position that movable front smoke chamber and movable rear smoke chamber contact with horizontal internal combustion three backhaul gas fired-boiler body of heater is provided with sealing ring.
6., according to the hot dirty gas gas fired-boiler described in claim 1, it is characterized in that burner selects heat-resistance stainless steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210134456.8A CN102635848B (en) | 2012-05-03 | 2012-05-03 | Hot and dirty coal gas boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210134456.8A CN102635848B (en) | 2012-05-03 | 2012-05-03 | Hot and dirty coal gas boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102635848A CN102635848A (en) | 2012-08-15 |
| CN102635848B true CN102635848B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210134456.8A Expired - Fee Related CN102635848B (en) | 2012-05-03 | 2012-05-03 | Hot and dirty coal gas boiler |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848211A (en) * | 2015-06-09 | 2015-08-19 | 洪百聪 | Gas boiler |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2643219Y (en) * | 2003-05-14 | 2004-09-22 | 李向东 | Raw coal, vaporization, and burning three-backstroke vertical boiler |
| CN1560512A (en) * | 2004-03-09 | 2005-01-05 | 江苏双良锅炉有限公司 | Boiler with preprocess function of automatic burning coke oven crude gas |
| CN101975448A (en) * | 2010-05-14 | 2011-02-16 | 安阳方快锅炉有限公司 | Horizontal shell boiler |
| CN202561729U (en) * | 2012-05-03 | 2012-11-28 | 山东耐火材料集团有限公司 | Hot hearth gas-fired boiler |
-
2012
- 2012-05-03 CN CN201210134456.8A patent/CN102635848B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2643219Y (en) * | 2003-05-14 | 2004-09-22 | 李向东 | Raw coal, vaporization, and burning three-backstroke vertical boiler |
| CN1560512A (en) * | 2004-03-09 | 2005-01-05 | 江苏双良锅炉有限公司 | Boiler with preprocess function of automatic burning coke oven crude gas |
| CN101975448A (en) * | 2010-05-14 | 2011-02-16 | 安阳方快锅炉有限公司 | Horizontal shell boiler |
| CN202561729U (en) * | 2012-05-03 | 2012-11-28 | 山东耐火材料集团有限公司 | Hot hearth gas-fired boiler |
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| Publication number | Publication date |
|---|---|
| CN102635848A (en) | 2012-08-15 |
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Granted publication date: 20150204 Termination date: 20180503 |