CN204006637U - Water-coal-slurry hot-water boiler - Google Patents
Water-coal-slurry hot-water boiler Download PDFInfo
- Publication number
- CN204006637U CN204006637U CN201420245825.5U CN201420245825U CN204006637U CN 204006637 U CN204006637 U CN 204006637U CN 201420245825 U CN201420245825 U CN 201420245825U CN 204006637 U CN204006637 U CN 204006637U
- Authority
- CN
- China
- Prior art keywords
- water
- furnace
- burner hearth
- coal
- slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Combustion Of Fluid Fuel (AREA)
Abstract
The utility model relates to water-coal-slurry hot-water boiler, it is characterized in that being provided with at four angles place of burner hearth the burner of low nitrogen type dedicated water coal slurry, around burner water-coal-slurry spout absolute altitude section, have additional wall with refractory lining, refracto, burner hearth is full film type wall hermetically-sealed construction, the lower end of water-cooling wall extends to form furnace hopper downwards, the outstanding furnace arch, furnace nose that forms is extended in the water-cooling wall upper end of burner hearth rear side in stove, furnace arch, furnace nose upwards extends to form two-way, wherein a road enters header vertically upward, another road composition fin panel casing forms the oblique furnace bottom of horizontal flue bottom, roof tube after the water-cooling wall of burner hearth front side extends back and forms, economizer and Horizontal air preheater are and intersect two-staqe fixing.The beneficial effects of the utility model are, the water-coal-slurry hot-water boiler thermal efficiency can reach more than 90%, and boiler water cycle is forced circulation, simply, reliably, the burner hearth disposable rising of four sides water-cooling wall all around, temperature is evenly reasonable, reduce temperature deviation, ensured the stability of burning.
Description
Technical field
The utility model relates to a kind of large capacity hot-water boiler of combusting coal water slurry.
Background technology
Large capacity hot-water boiler conventional in prior art adopts fire coal or combustion gas conventionally, coal is as the main heating energy, the environmental problem of its initiation is on the rise, and though natural gas is a kind of clean, high-quality, boiler oil efficiently, can effectively solve the problem of environmental pollution that boiler fired coal causes, but due to China's natural gas resource-constrained, heating is still limited by very large with natural gas consumption, and the operating cost of simultaneously firing natural gas boiler is very high.
Water-coal-slurry is a kind of novel coal-based cleaning liquid fluid fuel, and it has and storage like oil phase, conveying and combustion characteristics.Water-coal-slurry belongs to clean fuel, be listed in the clean resources project of state key development, can meet the environmental requirement of most areas, in the area of natural gas resource deficiency, use novel coal derived fuel---water-coal-slurry replaces the direct combustion of coal, can solve the contradiction between instantly very outstanding environmental pollution and people's lives and economic development.But the current general capacity of combusting coal water slurry hot-water boiler is less, and large-scale heat supply network need to be equipped with many low capacity boilers, and regulate heat supply network load, Load Regulation ability by the start and stop stove of many boilers; The phenomenons such as also ubiquity combustion instability, incomplete combustion, the easily coking of low capacity boiler, the thermal efficiency are low.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of jumbo water-coal-slurry hot-water boiler is provided, and the utility model adopted technical scheme of dealing with problems is: water-coal-slurry hot-water boiler comprises burner, burner hearth, economizer, Horizontal air preheater, drum, wall with refractory lining, refracto, water-cooling wall, furnace hopper, furnace arch, furnace nose, header, tiltedly furnace bottom, rear roof tube, higher level's economizer import header, subordinate's economizer exit header, distribute header, lower header, upper collecting chamber, is characterized in that the cross section of burner hearth is square, is provided with the burner of low nitrogen type dedicated water coal slurry at four angles place of burner hearth, has additional wall with refractory lining, refracto, before burner hearth around burner water-coal-slurry spout absolute altitude section, after, left, right wall is made by water-cooling wall, burner hearth is full film type wall hermetically-sealed construction, the lower end of water-cooling wall extends to form furnace hopper downwards, the outstanding furnace arch, furnace nose that forms is extended in the water-cooling wall upper end of burner hearth rear side in stove, furnace arch, furnace nose upwards extends to form two-way, and wherein a road enters header vertically upward, and another road composition fin panel casing forms the oblique furnace bottom of horizontal flue bottom, roof tube after the water-cooling wall of burner hearth front side extends back and forms, economizer and Horizontal air preheater are and intersect two-staqe fixing.
Water-coal-slurry hot-water boiler is furnished with four low nitrogen type dedicated water coal-slurry burners at burner hearth four jiaos, and every burner has three of upper, middle and lower water-coal-slurry spout, can ensure separate unit boiler capacity reach 58MW and more than, meet the heat demand of large-scale heat supply network; Simultaneously burner quadrangle tangential circle is arranged, effectively improves traditional direct light type and arranges and easily water-coal-slurry is ejected on furnace wall cooling and the coking causing.The high water-cooled furnace of square sectional is set up wall with refractory lining, refracto around burner water-coal-slurry spout absolute altitude section, and its material is Fire and abrasion resistant material, thickness is 70-95 millimeter, wall with refractory lining, refracto set up effective temperature that improves combustion zone, make water-coal-slurry accelerate to catch fire, flameholding.The design of blast furnace hearth makes water-coal-slurry and the flue gas time of staying in burner hearth longer, and cool water mixture burning is more abundant, and the lime-ash after water-coal-slurry combustion obtains more cooling in infall process, effectively reduces the coking of bottom furnace hopper, the possibility of slagging scorification.Significantly reduce the generation of NOx, played good emission reduction effect simultaneously.Arrange two-stage air preheater in tail vertical well, cold air can be heated to more than 300 DEG C, hot-air has effectively been stablized the burning of water-coal-slurry, has improved burner and has regulated the ability of loading, and boiler unit can stable operation under minimum 50% load.
The beneficial effects of the utility model are, the water-coal-slurry hot-water boiler thermal efficiency can reach more than 90%, using a 58MW hot-water boiler as embodiment, under equal water-coal-slurry consumption, can many confessions than the low capacity hot-water boiler of 4 14MW the area of heat-supply service of 250,000 square metres.Boiler water cycle is forced circulation, simple, reliable, the burner hearth disposable rising of four sides water-cooling wall all around, and temperature is evenly reasonable, has reduced temperature deviation, has ensured the stability of burning.
Brief description of the drawings
Fig. 1: the utility model example structure schematic diagram.
Fig. 2: the utility model embodiment plan structure schematic diagram.
In figure: burner 1, burner hearth 2, economizer 3, Horizontal air preheater 4, drum 5, wall with refractory lining, refracto 6, water-cooling wall 7, furnace hopper 8, furnace arch, furnace nose 9, header 10, oblique furnace bottom 11, rear roof tube 12, higher level's economizer import header 13, subordinate's economizer exit header 14, distribution header 15, lower header 16, upper collecting chamber 17.
Detailed description of the invention
With reference to the accompanying drawings of the utility model being done to following concrete detailed description.As shown in drawings, structure of the present utility model comprises burner 1, burner hearth 2, economizer 3, Horizontal air preheater 4, drum 5, wall with refractory lining, refracto 6, water-cooling wall 7, furnace hopper 8, furnace arch, furnace nose 9, header 10, tiltedly furnace bottom 11, rear roof tube 12, higher level's economizer import header 13, subordinate's economizer exit header 14, distribute header 15, lower header 16, upper collecting chamber 17, is characterized in that the cross section of burner hearth 2 is square, is provided with the burner 1 of low nitrogen type dedicated water coal slurry at four angles place of burner hearth 2, has additional wall with refractory lining, refracto 6, before burner hearth 2 around burner 1 water-coal-slurry spout absolute altitude section, after, left, right wall is made by water-cooling wall 7, burner hearth 2 is full film type wall hermetically-sealed construction, the lower end of water-cooling wall 7 extends to form furnace hopper 8 downwards, the outstanding furnace arch, furnace nose 9 that forms is extended in water-cooling wall 7 upper ends of burner hearth 2 rear sides in stove, furnace arch, furnace nose 9 upwards extends to form two-way, wherein a road enters header 10 vertically upward, another road composition fin panel casing forms the oblique furnace bottom 11 of horizontal flue bottom, roof tube 12 after the water-cooling wall 7 of burner hearth 2 front sides extends back and forms, economizer 3 and Horizontal air preheater 4 are and intersect two-staqe fixing.
Embodiment recited above is described preferred embodiment of the present utility model; not design of the present utility model and scope are limited; do not departing under the prerequisite of the utility model design concept; various modification and improvement that in this area, common engineers and technicians make the technical solution of the utility model; all should fall into protection domain of the present utility model; the technology contents of the utility model request protection, has all been documented in claims.
Claims (1)
1. water-coal-slurry hot-water boiler, comprises burner (1), burner hearth (2), economizer (3), Horizontal air preheater (4), drum (5), wall with refractory lining, refracto (6), water-cooling wall (7), furnace hopper (8), furnace arch, furnace nose (9), header (10), tiltedly furnace bottom (11), rear roof tube (12), higher level's economizer import header (13), subordinate's economizer exit header (14), distribute header (15), lower header (16), upper collecting chamber (17), the cross section that it is characterized in that burner hearth (2) is square, be provided with the burner (1) of low nitrogen type dedicated water coal slurry at four angles place of burner hearth (2), around burner (1) water-coal-slurry spout absolute altitude section, have additional wall with refractory lining, refracto (6), before burner hearth (2), after, left, right wall is made by water-cooling wall (7), burner hearth (2) is full film type wall hermetically-sealed construction, the lower end of water-cooling wall (7) extends to form furnace hopper (8) downwards, the outstanding furnace arch, furnace nose (9) that forms is extended in water-cooling wall (7) upper end of burner hearth (2) rear side in stove, furnace arch, furnace nose (9) upwards extends to form two-way, wherein a road enters header (10) vertically upward, another road composition fin panel casing forms the oblique furnace bottom (11) of horizontal flue bottom, roof tube (12) after the water-cooling wall (7) of burner hearth (2) front side extends back and forms, economizer (3) and Horizontal air preheater (4) are and intersect two-staqe fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245825.5U CN204006637U (en) | 2014-05-11 | 2014-05-11 | Water-coal-slurry hot-water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245825.5U CN204006637U (en) | 2014-05-11 | 2014-05-11 | Water-coal-slurry hot-water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204006637U true CN204006637U (en) | 2014-12-10 |
Family
ID=52046630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420245825.5U Expired - Fee Related CN204006637U (en) | 2014-05-11 | 2014-05-11 | Water-coal-slurry hot-water boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204006637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091320A (en) * | 2014-05-11 | 2015-11-25 | 南通万达锅炉有限公司 | CWS (Coal Water Slurry) hot water boiler system |
| RU177021U1 (en) * | 2016-11-30 | 2018-02-06 | Василий Иванович Мурко | BOILER |
-
2014
- 2014-05-11 CN CN201420245825.5U patent/CN204006637U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091320A (en) * | 2014-05-11 | 2015-11-25 | 南通万达锅炉有限公司 | CWS (Coal Water Slurry) hot water boiler system |
| RU177021U1 (en) * | 2016-11-30 | 2018-02-06 | Василий Иванович Мурко | BOILER |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104406158B (en) | A kind of tubular type burner hearth biomass combustion machine | |
| CN108105757A (en) | A kind of novel anti-coking intelligent and high-efficiency type biomass heating furnace | |
| CN105091320A (en) | CWS (Coal Water Slurry) hot water boiler system | |
| CN202371872U (en) | Vertical type tube derivative forced circulation coal dust combustion hot-water boiler | |
| CN204006637U (en) | Water-coal-slurry hot-water boiler | |
| CN202158650U (en) | Chain type double-drum biomass particle gasification combustion hot water environmental friendly boiler | |
| CN104180385A (en) | Carbocoal heat carrier system and method for preventing pulverized coal furnace from contamination | |
| CN102913899B (en) | Recirculating fluidized bed steam, organic heat carrier, hot-air Three-in-one | |
| CN202733916U (en) | Burning dregs fluidized bed boiler | |
| CN202927884U (en) | Solid fuel civil cooking heating furnace | |
| CN102818247B (en) | Efficient steam boiler for gasification and combined combustion of pulverized coal | |
| CN102494332A (en) | Energy-saving chain-grate boiler | |
| CN102818362B (en) | Chain type environment-friendly double-drum biomass particle gasifying burning hot-water boiler | |
| CN202546736U (en) | Bagasse pith and pulverized coal fired boiler | |
| CN202598816U (en) | Horizontal internal-combustion dual-reinforcement biomass fuel hot water boiler | |
| CN104848262A (en) | Return air furnace capable of recycling waste heat | |
| CN204006068U (en) | A kind of coal-powder boiler semicoke thermal vector system that prevents that boiler from staiing | |
| CN104121575B (en) | Internal combustion method | |
| CN209147148U (en) | Counter-combustion coal stove and its device for reducing tar generation | |
| CN209180921U (en) | Biomass direct-fired hot-water boiler | |
| CN209147151U (en) | More backhaul reverse burning furnace tools | |
| CN204006633U (en) | A kind of modular convection heating surface fire tube boiler | |
| CN202885230U (en) | Large-scale pulverized coal combustion hot-water boiler | |
| CN202973511U (en) | Superfine pulverized coal firing hot water boiler | |
| CN206018713U (en) | It is applied to the multi-function ranges of the automatic blanking of little particle fuel |
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: 20141210 Termination date: 20180511 |