CN204987438U - Novel coal -fired powder boiler of angled pipe formula - Google Patents
Novel coal -fired powder boiler of angled pipe formula Download PDFInfo
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- CN204987438U CN204987438U CN201520440389.1U CN201520440389U CN204987438U CN 204987438 U CN204987438 U CN 204987438U CN 201520440389 U CN201520440389 U CN 201520440389U CN 204987438 U CN204987438 U CN 204987438U
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Abstract
The utility model discloses a novel coal -fired powder boiler of angled pipe formula belongs to industry pulverized coal boiler field. It includes combustor, drum, downtake, membrane wall, fires cinder room, convection heating surface and economizer, and the economizer bottom is equipped with the inlet tube, and convection heating surface is connected to the inlet tube, and convection heating surface connects the drum, sets up the return water distributing pipe in the drum, is equipped with on the return water distributing pipe to draw to penetrate the pipe, and the water in the drum gets into the downtake through drawing to penetrate the pipe and drive pot water, forms the natural circulation system of rivers between membrane wall, drum and the downtake. The utility model discloses mainly used city central heating, it has, and the burning is stable, the leakproofness is good, the capability of antidetonance is good and the advantage of hydrologic cycle good reliability.
Description
Technical field
The utility model belongs to a kind of industrial coal powder boiler, specifically, particularly relates to a kind of Novel angle tubular type burning coal powder hot-water boiler.
Background technology
Along with the develop rapidly of China's economy, energy-conserving and environment-protective require increasingly strict, and high effect cleaning combustion industry pulverized-coal fired boiler technology has unique advantage in economize energy and environmental protection.In recent years, China made a breakthrough at industrial coal powder boiler applied technical field.Researcher has developed the industrial coal powder boiler technology of multiple pattern, as pan shell type fire tube pulverized-coal fired boiler and fast-assembling D type water pipe pulverized-coal fired boiler etc., and is applied in engineering practice.But due to the restriction of coal burner adaptability and boiler structure, existing coal dust technology exists many limitation, as burner bad adaptability, combustion instability, thermal expansion is asynchronous, sealing is poor, the capability of antidetonance is poor and the problem such as water circulation poor reliability.Along with Chinese Urbanization speed is accelerated, concentrated supply of heating in the city develops rapidly, heating facility just keeps the large-scale development, this to economize energy and Concetrated control environment very favourable, the development prospect of large scale industry pulverized-coal fired boiler is good, and pulverized-coal fired boiler Stable Combustion Technology and water circulation reliability service technology more become the emphasis of industrial coal powder boiler technological break-through.
Utility model content
The utility model object is to provide a kind of Novel angle tubular type burning coal powder hot-water boiler, and to overcome industrial coal powder boiler burner bad adaptability in prior art, combustion instability, thermal expansion is asynchronous, sealing is poor, the capability of antidetonance is poor and the defect of water circulation poor reliability.
The utility model realizes by the following technical solutions: a kind of Novel angle tubular type burning coal powder hot-water boiler, comprise burner, drum, down-comer, fin panel casing, burning chamber, convection heating surface and economizer, inlet tube is provided with bottom economizer, inlet tube connects convection heating surface, convection heating surface connects drum, backwater distributing pipe is set in drum, backwater distributing pipe is equipped with induction tunnel, water in drum is by induction tunnel and drive pot water to enter down-comer, fin panel casing, forms the natural cycle system of current between drum and down-comer.
Burner is arranged on roof of the furnace.
Burner corner is furnished with tertiary air air port.
Convection heating surface and horizontal plane adopt the inclination angle of α=15 ° to arrange.
Compared with prior art, the beneficial effects of the utility model are:
(1) the utility model boiler adopts corner tube boiler version, overhead burner, be conducive to the burning cmpletely of fuel, rely on burner high velocity air out and air-introduced machine effect, flue gas can enter convection pass from lower furnace exit through V-arrangement reversal chamber, because centrifugal action can make part bulky grain ash content from falling in burner hearth bottom ash bucket, reduce flue gas to the wearing and tearing of convection heating surface;
(2) the utility model boiler surrounding fin panel casing and major diameter common downcomer form the framework of a more stable and stronger, and bulk metal expands consistent, without on the contrary to the thermal stress issues that produces of thermal expansion;
(3) the utility model boiler furnace and flow through shaft is all adopted to the structure of fin panel casing, furnace roof and furnace bottom also adopt film water cold wall structure, and bottom ash port adopts water seal, even if in detonation situation, also can quick pressure releasing, prevent from producing boiler damaging.
(4) the utility model boiler water cycle adopts the mode that forced circulation and Natural Circulation combine.Boiler generation water hammer can be prevented when the unexpected power-off in boiler room, effectively prevent the generation of boiler and pipe safety problem.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1, burner; 2, drum; 3, down-comer; 4, fin panel casing; 5, inlet tube; 6, Crust blocks pipe bundle; 7, burning chamber; 8, convection heating surface; 9, economizer; 10, communicating pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of Novel angle tubular type burning coal powder hot-water boiler, comprises burner 1, drum 2, down-comer 3, fin panel casing 4, Crust blocks pipe bundle 6, burning chamber 7, convection heating surface 8, economizer 9, communicating pipe 10.
Boiler furnace and flow through shaft is all adopted to the structure of fin panel casing 4, furnace roof and furnace bottom also adopt the structure of fin panel casing 4.Bottom ash port adopts water seal, even if in detonation situation, and also can quick pressure releasing, prevent from producing boiler damaging, manhole door and peephole adopt pressure combustion fire door and pressure combustion peephole structure, good seal performance, without leaking out, be conducive to the raising of boiler thermal output.
The utility model boiler adopts corner tube boiler version.According to coal powder cleaning combusting technology, burner 1 adopts the advanced technology of electromechanical integration, and can adapt to the fuel that calorific value is lower, flameholding, efficiency of combustion is high, and boiler thermal output is high, fully can ensure boiler output.Burner 1 is arranged on roof of the furnace, and its corner is furnished with tertiary air air port, is conducive to the burning cmpletely of fuel and reduces NOx content.Burner 1 overhead; can produce rising buoyancy effect because high-temperature flue-gas high density is little make flue gas in burner hearth, have strong immixture; also the burning cmpletely of fuel is conducive to; rely on burner 1 high velocity air out and air-introduced machine effect; flue gas can enter convection pass from lower furnace exit through V-arrangement reversal chamber; because centrifugal action can make part bulky grain ash content from falling in burner hearth bottom ash bucket, reduce flue gas to the wearing and tearing of convection heating surface.
Convection heating surface 8 is flag formula convection heating surface, it is by the bracket support on front wall in afterbody flagpole water screen tube and convection pass, it 4 synchronously to expand with fin panel casing, the inclination angle of α=15 ° is adopted to arrange at convection pass arrival end two groups of convection heating surfaces 8 and horizontal plane, prevent separation of two, be conducive to the safe operation of heating surface.For preventing collecting ash, this boiler economizer 9 adopts shell-and-tube threaded flue structure.
The mode that this boiler water cycle adopts forced circulation and Natural Circulation to combine.The water (flow) direction of convection heating surface 8 all adopts rising form, and water-flow circuit design science is reasonable, safe and reliable.First backwater enters the inlet tube 5 bottom economizer 9, after the heating of economizer 9 smoke-fire-tube, by entering the entrance header of convection heating surface 8 communicating pipe 10, flow through after convection heating surface 8 is heated and enter drum 2 by the communicating pipe 10 in the top header of convection heating surface 8, backwater distributing pipe is set in drum 2, backwater distributing pipe is equipped with induction tunnel, water is by induction tunnel and drive pot water to enter major diameter common downcomer 3 and enter the pipeline of tedge fin panel casing 4, and heated at burner hearth, temperature raises, density reduces, fin panel casing 4, natural cycle system is formed between drum 2 and large diameter down-comer 3, hot water leads to heating network from drum 2 top outlet pipe.Wherein, the flow area of down-comer 3 is greater than tedge cross section, is very beneficial for the safety of natural convection loop, and through hot-water boiler Calculation of Hydrodynamic, safe water circulation is reliable.
Claims (4)
1. a Novel angle tubular type burning coal powder hot-water boiler, comprise burner (1), drum (2), down-comer (3), fin panel casing (4), burning chamber (7), convection heating surface (8) and economizer (9), it is characterized in that: described economizer (9) bottom is provided with inlet tube (5), inlet tube (5) connects convection heating surface (8), convection heating surface (8) connects drum (2), drum arranges backwater distributing pipe in (2), backwater distributing pipe is equipped with induction tunnel, water in drum (2) is by induction tunnel and drive pot water to enter down-comer (3), in fin panel casing (4), the natural cycle system of current is formed between drum (2) and down-comer (3).
2. Novel angle tubular type burning coal powder hot-water boiler according to claim 1, is characterized in that: described burner (1) is arranged on roof of the furnace.
3. Novel angle tubular type burning coal powder hot-water boiler according to claim 2, is characterized in that: described burner (1) corner is furnished with tertiary air air port.
4. the Novel angle tubular type burning coal powder hot-water boiler according to claim 1 or 2 or 3, is characterized in that: described convection heating surface (8) and horizontal plane adopt the inclination angle of α=15 ° to arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520440389.1U CN204987438U (en) | 2015-06-24 | 2015-06-24 | Novel coal -fired powder boiler of angled pipe formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520440389.1U CN204987438U (en) | 2015-06-24 | 2015-06-24 | Novel coal -fired powder boiler of angled pipe formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204987438U true CN204987438U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520440389.1U Expired - Fee Related CN204987438U (en) | 2015-06-24 | 2015-06-24 | Novel coal -fired powder boiler of angled pipe formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204987438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021258646A1 (en) * | 2020-06-23 | 2021-12-30 | 江苏太湖锅炉股份有限公司 | Natural circulation ferrosilicon waste heat boiler circulation system |
-
2015
- 2015-06-24 CN CN201520440389.1U patent/CN204987438U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021258646A1 (en) * | 2020-06-23 | 2021-12-30 | 江苏太湖锅炉股份有限公司 | Natural circulation ferrosilicon waste heat boiler circulation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20190624 |