CN103075743B - Hearth arranging structure of low heating value coal gas boiler for burning - Google Patents
Hearth arranging structure of low heating value coal gas boiler for burning Download PDFInfo
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- CN103075743B CN103075743B CN201310009663.5A CN201310009663A CN103075743B CN 103075743 B CN103075743 B CN 103075743B CN 201310009663 A CN201310009663 A CN 201310009663A CN 103075743 B CN103075743 B CN 103075743B
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- burner hearth
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Abstract
The invention provides a hearth arranging structure of a low heating value coal gas boiler for burning, wherein ignition and stable burning of heating value coal gas in the hearth is ensured and efficient operation of the boiler is ensured. The hearth arranging structure comprises a hearth, and membrane water-cooling walls are arranged around the hearth. The hearth arranging structure is characterized in that inward contractive arc-shaped structures are arranged in the middle parts of any one pair of walls of the hearth; the arc-shaped structure on both walls are symmetrically arranged; an independent burning chamber is arranged below the arc-shaped structures; a refractory belt is arranged inside the membrane water-cooling wall corresponding to the independent burning chamber; and the independent burning chamber is internally provided with a gas burner; the lower parts of membrane water-cooling walls of any one pair of the walls of the hearth go beyond the wall; and the parts of the membrane water-cooling walls going beyond the wall is closed toward the inner middle part below, and the close angle forms a dip angle of 15 degrees with the horizontal line.
Description
Technical field
The present invention relates to the technical field of gas boiler structure, be specially the burner hearth arrangement using low calorific value coal gas boiler.
Background technology
The existing structure using the high parameter boiler of low-heat value gas is as follows: it is single drum, common downcomer, the low calorific value coal steam stove that Natural Circulation ∏ type is arranged, half outdoor layout, and boiler front portion is burner hearth, surrounding layout fin panel casing.Furnace outlet place arranges pendant superheater, and two-stage convection superheater installed by horizontal flue.Furnace roof, horizontal flue both sides and reversal chamber arrange roof tube and enclosure wall tube, afterbody interlaced arrangement two-stage economizer and two-stage air preheater, because the calorific value of low-heat value gas is lower, flame temperature is low, its radiation and self-stable ability weak, the self-stable ability of existing chamber structure Fire Radiation and flame combustion is weak.
Summary of the invention
For the problems referred to above, the invention provides the burner hearth arrangement using low calorific value coal gas boiler, it guarantees catching fire of the calorific value of gas of burner hearth inside and smooth combustion, guarantees the Effec-tive Function of boiler.
Use the burner hearth arrangement of low calorific value coal gas boiler, its technical scheme is such: it comprises burner hearth, the surrounding of described burner hearth is furnished with fin panel casing, it is characterized in that: wherein arbitrary centre position to wall of described burner hearth is provided with the domes inwardly shunk, the domes of side walls are arranged symmetrically with, it is independent combustion chamber below described domes, wall with refractory lining, refracto is provided with inside the fin panel casing that described independent combustion chamber is corresponding, described independent burning indoor are furnished with gas burner, wherein arbitrary bottom to the fin panel casing corresponding to wall of described burner hearth exceedes wall, the described film-type water-cooling wall portion exceeding described wall inwardly closes up closed in below, middle part, its closing in angle is that horizontal line becomes 15 ° of inclination angles.
It is further characterized in that: on the horizontally disposed both walls at lower furnace portion insulated combustion chamber of described gas burner or front-back wall.
After adopting structure of the present invention, the arbitrary of burner hearth is equipped with the domes inwardly shunk in couples in burner hearth interposition to wall, form waisting, form the independent combustion chamber of lower furnace portion, wall with refractory lining, refracto is provided with inside the fin panel casing that independent combustion chamber is corresponding, define high-temperature region, ensure catching fire and smooth combustion of low-heat value gas; The design of symmetrical arch in the middle part of burner hearth, define radiant arch, heat is made to be concentrated near the spout of gas burner, the fuel just entering burner hearth is heated, that guarantees to catch fire is stable, make low-heat value gas by time formed secondary mixing, it guarantees catching fire of the calorific value of gas of burner hearth inside and smooth combustion, guarantees the Effec-tive Function of boiler.
Accompanying drawing explanation
Fig. 1 is the front view structural representation of the specific embodiment of the invention one;
Fig. 2 is the left view structural representation of Fig. 1;
Fig. 3 is the front view structural representation of the specific embodiment of the invention one;
Fig. 4 is the left view structural representation of Fig. 3.
Detailed description of the invention
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, it comprises burner hearth 1, the surrounding of burner hearth 1 is furnished with fin panel casing 2, wherein arbitrary centre position to wall of burner hearth 1 is provided with the domes 3 inwardly shunk, the domes 3 of side walls are arranged symmetrically with, it is independent combustion chamber 4 below domes 3, wall with refractory lining, refracto 5 is provided with inside the fin panel casing of independent combustion chamber 4 correspondence, gas burner 6 is furnished with in independent combustion chamber 4, wherein arbitrary bottom to the fin panel casing 2 corresponding to wall of burner hearth 1 exceedes wall, the film-type water-cooling wall portion 2 exceeding wall inwardly closes up closed in below, middle part, its closing in angle is that horizontal line becomes 15 ° of inclination angles.On the horizontally disposed both walls in burner hearth 1 lower thermal barrier combustion chamber of gas burner 6 or front-back wall.
Detailed description of the invention one, is shown in Fig. 1, Fig. 2, and wherein 7 is that left side wall, 8 is for right side wall.
Detailed description of the invention two, is shown in Fig. 3, Fig. 4, and wherein 9 is that front wall, 10 is for rear wall.
Claims (2)
1. use the burner hearth arrangement of low calorific value coal gas boiler, it comprises burner hearth, the surrounding of described burner hearth is furnished with fin panel casing, it is characterized in that: wherein arbitrary centre position to wall of described burner hearth is provided with the domes inwardly shunk, the domes of two sidewalls are arranged symmetrically with, it is independent combustion chamber below described domes, wall with refractory lining, refracto is provided with inside the fin panel casing that described independent combustion chamber is corresponding, described independent burning indoor are furnished with gas burner, wherein arbitrary bottom to the fin panel casing corresponding to wall of described burner hearth exceedes wall, the described film-type water-cooling wall portion exceeding described wall inwardly closes up closed in below, middle part, its closing in place and horizontal line are 15 ° of inclination angles.
2. the burner hearth arrangement using low calorific value coal gas boiler according to claim 1, is characterized in that: on the horizontally disposed both walls at lower furnace portion independent combustion chamber of described gas burner or front-back wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310009663.5A CN103075743B (en) | 2013-01-11 | 2013-01-11 | Hearth arranging structure of low heating value coal gas boiler for burning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310009663.5A CN103075743B (en) | 2013-01-11 | 2013-01-11 | Hearth arranging structure of low heating value coal gas boiler for burning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103075743A CN103075743A (en) | 2013-05-01 |
| CN103075743B true CN103075743B (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310009663.5A Active CN103075743B (en) | 2013-01-11 | 2013-01-11 | Hearth arranging structure of low heating value coal gas boiler for burning |
Country Status (1)
| Country | Link |
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| CN (1) | CN103075743B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925748B (en) * | 2019-11-28 | 2021-11-12 | 国网河北省电力有限公司电力科学研究院 | Boiler capable of deeply regulating peak |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2204021Y (en) * | 1994-07-26 | 1995-07-26 | 张忠义 | Arched furnace tank for boiler of coal projection machine |
| CN2215661Y (en) * | 1994-10-10 | 1995-12-20 | 刘雪华 | Coal blasting boiler |
| CN2297646Y (en) * | 1996-11-08 | 1998-11-18 | 刘光铎 | Reinforced combustion type combustion chamber structure of hearth boiler |
| WO2004048851A1 (en) * | 2002-11-25 | 2004-06-10 | David Systems Technology, S.L. | Integrated plasma-frequency induction process for waste treatment, resource recovery and apparatus for realizing same |
| CN101694295A (en) * | 2009-10-30 | 2010-04-14 | 哈尔滨工业大学 | W-shaped flame boiler disposing aperture type over-fire air spouts on stove arch |
| CN201983253U (en) * | 2011-01-04 | 2011-09-21 | 华北电力大学 | Biomass direct-fired boiler |
| CN203068560U (en) * | 2013-01-11 | 2013-07-17 | 无锡华光锅炉股份有限公司 | Hearth arrangement structure of boiler combusting low-calorific-value gas |
-
2013
- 2013-01-11 CN CN201310009663.5A patent/CN103075743B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2204021Y (en) * | 1994-07-26 | 1995-07-26 | 张忠义 | Arched furnace tank for boiler of coal projection machine |
| CN2215661Y (en) * | 1994-10-10 | 1995-12-20 | 刘雪华 | Coal blasting boiler |
| CN2297646Y (en) * | 1996-11-08 | 1998-11-18 | 刘光铎 | Reinforced combustion type combustion chamber structure of hearth boiler |
| WO2004048851A1 (en) * | 2002-11-25 | 2004-06-10 | David Systems Technology, S.L. | Integrated plasma-frequency induction process for waste treatment, resource recovery and apparatus for realizing same |
| CN101694295A (en) * | 2009-10-30 | 2010-04-14 | 哈尔滨工业大学 | W-shaped flame boiler disposing aperture type over-fire air spouts on stove arch |
| CN201983253U (en) * | 2011-01-04 | 2011-09-21 | 华北电力大学 | Biomass direct-fired boiler |
| CN203068560U (en) * | 2013-01-11 | 2013-07-17 | 无锡华光锅炉股份有限公司 | Hearth arrangement structure of boiler combusting low-calorific-value gas |
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| CN103075743A (en) | 2013-05-01 |
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Address after: 214028 No. 3 Chengnan Road, new Wu District, Jiangsu, Wuxi Patentee after: Wuxi Huaguang Environmental Protection Energy Group Co., Ltd Address before: 214028 No. 3 Chengnan Road, New District, Jiangsu, Wuxi Patentee before: WUXI HUAGUANG BOILER Co.,Ltd. |
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