CN2709864Y - Environmental protection economic back-burn boiler - Google Patents
Environmental protection economic back-burn boiler Download PDFInfo
- Publication number
- CN2709864Y CN2709864Y CN 03270958 CN03270958U CN2709864Y CN 2709864 Y CN2709864 Y CN 2709864Y CN 03270958 CN03270958 CN 03270958 CN 03270958 U CN03270958 U CN 03270958U CN 2709864 Y CN2709864 Y CN 2709864Y
- Authority
- CN
- China
- Prior art keywords
- boiler
- wall
- water
- grates
- furnace body
- 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
- 230000007613 environmental effect Effects 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000010304 firing Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 abstract description 2
- 238000003379 elimination reaction Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 2
- 239000000428 dust Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 12
- 239000003546 flue gas Substances 0.000 description 12
- 239000003245 coal Substances 0.000 description 3
- 239000003500 flue dust Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000003818 cinder Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model provides an environmental protection economic back-burn boiler, belonging to a boiler, and comprising a lower grates; a water cooling grates are provided above the lower grate; the two lower grates and the two grates are symmetrically arranged; the water cooling grates are communicated with the arc boiler arch above the grates; the arc boiler arch is communicated with a water chamber composed of an outer wall of the boiler body and the inner wall of the boiler body; the upper part of the inner wall is fixed with a baffler in U shape; a transverse water pipe in Y shape distributed in the inner wall of the boiler body is communicated with the water chamber; a chimney interface is installed at the upper part of the inner wall of the boiler body; a heating insulation wall is around the lower grate; hot smoke communicates in a boiler chamber along double S travel, which has the transverse water pipe in Y shape exchanged convection heat; the boiler of the utility model has reasonable structure, good smoke elimination and dust removing effect, sufficient burning, big heat exchanging area, high heat efficiency, economical operation and low cost, improves the boiler power, and reduces the steel consumption in certain power when manufacturing.
Description
Technical field
The utility model provides a kind of boiler, especially a kind of improved back firing boiler.
Background technology
Existing back firing boiler has a lower fire grating and a water-cooled grate, the arc chimney arch that the water-cooled grate top has a refractory material to make.Coal-fired carry out on the lower fire grating burning the second time carrying out on the water-cooled grate falling after the burning first time, after the hot flue gas that burning produces goes downwards to the chimney arch bottom along the arc chimney arch, be folded to and upwards enter in the furnace chamber, horizontal water tube is impacted, realize heat convection, hot flue gas is after the chimney interface enters the chimney discharge.This boiler is compared with boiler, has certain environmental protection, energy-conservation characteristics, but still has deficiency, but greatly improvements are arranged at the reasonability of the thermal efficiency, environment protecting, topology layout, the aspects such as power of separate unit boiler in the past.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of improved environmental protection and economy type back firing boiler, with the further raising thermal efficiency and environment protecting.
The utility model is to realize like this, environmental protection and economy type back firing boiler, comprise lower fire grating, there is water-cooled grate the lower fire grating top, described lower fire grating, the water-cooled grate symmetric arrangement has two, water-cooled grate is connected with the arc chimney arch of its top, the arc chimney arch with by furnace body outer wall, the hydroecium that inboard wall of furnace body constitutes is connected, the top of inboard wall of furnace body is fixed with the U-shaped baffle plate, also have the horizontal water tube of Y-shaped distribution to be connected in the inboard wall of furnace body with hydroecium, inboard wall of furnace body top is equipped with the chimney interface, and heat-barrier material wall, water-cooled grate are arranged around the lower fire grating, in the body of heater of lower fire grating top, upper furnace door and lower furnace door are arranged respectively on the outer wall.
Adopt the environmental protection and economy type back firing boiler of said structure, topology layout is reasonable, and smoke medicining dust-removing effect is good, sufficient combustion, hot flue gas along two S shape stroke circulations, is realized heat convection with the horizontal water tube of Y shape layout in furnace chamber, heat exchange area is big, thermal efficiency height, economical operation, expense is low.Because the lower fire grating and the water-cooled grate of two symmetric arrangement are arranged, improved the power of separate unit boiler, reduced the steel consumption of unit power when making significantly.
Description of drawings
Fig. 1 is the schematic diagram of the utility model structure.
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing illustrates structure of the present utility model and operation principle.
As shown in drawings, the environmental protection and economy type back firing boiler of the utility model, comprise lower fire grating (7), there is water-cooled grate (6) the lower fire grating top, described lower fire grating (7), water-cooled grate (6) symmetric arrangement has two, water-cooled grate is connected with the arc chimney arch (5) of its top, the arc chimney arch with by furnace body outer wall (13), the hydroecium that inboard wall of furnace body (12) constitutes is connected, the top of inboard wall of furnace body is fixed with U-shaped baffle plate (2), also have the horizontal water tube (11) of Y-shaped distribution to be connected in the inboard wall of furnace body with hydroecium, inboard wall of furnace body top is equipped with chimney interface (15), heat-barrier material wall (8), water-cooled grate are arranged around the lower fire grating, in the body of heater of lower fire grating top, upper furnace door (10) and lower furnace door (9) are arranged respectively on the outer wall.
Top in described furnace body outer wall (13) has by shell (14) to be connected with air inlet (1) with the protection water tank that inboard wall of furnace body (12) constitutes.Air inlet is connected with atmosphere.The protection water tank is connected with hydroecium.Because the existence of protection water tank is arranged, make the fluctuation of boiler water level be limited in the scope of protection water tank, thus the burn into damage of having avoided the hydroecium on boiler body top to cause because of advancing air.The protection water tank damages the back and is very easy to place under repair and replacing.
U-shaped baffle plate (2) can be made by refractory material such as refractory brick.Heat-barrier material wall (8) also can be made by refractory brick.The heat-barrier material wall is positioned on lower fire grating left and right back three faces with respect to hot flue gas trend on every side.The top of hydroecium can be equipped with thermometer (3).Cleaning door (4) can be arranged, so that the flue dust that will drop on the arc chimney arch is removed on the inside and outside wall of the body of heater of the top of arc chimney arch.Above the chimney interface right chimney can be installed.The concave surface of U-shaped baffle plate upside constitutes the collection ashpit, collects the flue dust that falls from chimney.Flue dust in the collection ashpit can be removed it more for a long time.The U-shaped baffle plate can be below it a plurality of horizontal water tube supports.
During use, fire coal is delivered on the water-cooled grate through upper furnace door, fire coal carries out the burning first time, and the coal cinder after burning diminishes is fallen on the lower fire grating through the slit between the water-cooled grate, carries out the burning second time.Because around the lower fire grating is the heat-barrier material wall, under the condition of the coal-fired violent burning on heat insulation around, the two-layer fire grate, extreme temperatures in the burner hearth of water-cooled grate below, the effect that high fire box temperature can play thorough smoke elimination and improve the thermal efficiency.The hot flue gas that burning produces enters in the burner hearth that is furnished with horizontal water tube, and under the effect of U-shaped baffle plate, hot flue gas is along the upwards circulation of two S shape strokes, carries out convective heat exchange with water in the horizontal water tube.The hot flue gas stroke of two S shapes can make hot flue gas prolong the walking distance as much as possible, has improved the efficient of heat exchange.At last, the hot flue gas of having finished heat exchange is discharged from chimney through the chimney interface.
Water in the hydroecium that the inside and outside wall of water-cooled grate, arc fire grate and body of heater constitutes also participates in heat exchange.
The Y shape of horizontal water tube arranges, can realize with two S shape strokes of hot flue gas in correspondence with each other.The arc chimney arch can echo mutually with the arc stroke of hot flue gas stroke hypomere, both can make the boiler space obtain the most effective utilization, has reduced the circulating resistance of hot flue gas again.
Claims (2)
1, environmental protection and economy type back firing boiler, comprise lower fire grating (7), there is water-cooled grate (6) the lower fire grating top, it is characterized in that, described lower fire grating (7), water-cooled grate (6) symmetric arrangement has two, water-cooled grate is connected with the arc chimney arch (5) of its top, the arc chimney arch with by furnace body outer wall (13), the hydroecium that inboard wall of furnace body (12) constitutes is connected, the top of inboard wall of furnace body is fixed with U-shaped baffle plate (2), also have the horizontal water tube (11) of Y-shaped distribution to be connected in the inboard wall of furnace body with hydroecium, inboard wall of furnace body top is equipped with chimney interface (15), heat-barrier material wall (8), water-cooled grate are arranged around the lower fire grating, in the body of heater of lower fire grating top, upper furnace door (10) and lower furnace door (9) are arranged respectively on the outer wall.
2, environmental protection and economy type back firing boiler as claimed in claim 1 is characterized in that, the top in described furnace body outer wall (13) has by shell (14) to be connected with air inlet (1) with the protection water tank that inboard wall of furnace body (12) constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03270958 CN2709864Y (en) | 2003-08-22 | 2003-08-22 | Environmental protection economic back-burn boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03270958 CN2709864Y (en) | 2003-08-22 | 2003-08-22 | Environmental protection economic back-burn boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2709864Y true CN2709864Y (en) | 2005-07-13 |
Family
ID=34842850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03270958 Expired - Fee Related CN2709864Y (en) | 2003-08-22 | 2003-08-22 | Environmental protection economic back-burn boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2709864Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003789A (en) * | 2010-12-08 | 2011-04-06 | 李茂枝 | Reburning type energy-saving and environment-protected heating boiler |
| CN107421114A (en) * | 2017-06-14 | 2017-12-01 | 六安永贞匠道机电科技有限公司 | A kind of tapered, reheat-type waste heat circulation heater |
| CN110081756A (en) * | 2019-04-25 | 2019-08-02 | 四川陆亨能源科技有限公司 | A kind of H-type fin economizer |
-
2003
- 2003-08-22 CN CN 03270958 patent/CN2709864Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003789A (en) * | 2010-12-08 | 2011-04-06 | 李茂枝 | Reburning type energy-saving and environment-protected heating boiler |
| CN107421114A (en) * | 2017-06-14 | 2017-12-01 | 六安永贞匠道机电科技有限公司 | A kind of tapered, reheat-type waste heat circulation heater |
| CN110081756A (en) * | 2019-04-25 | 2019-08-02 | 四川陆亨能源科技有限公司 | A kind of H-type fin economizer |
| CN110081756B (en) * | 2019-04-25 | 2023-10-24 | 四川陆亨能源科技有限公司 | H-shaped fin economizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |