CN2795660Y - Vertical double layer fire grate boiler with energy saving arch - Google Patents
Vertical double layer fire grate boiler with energy saving arch Download PDFInfo
- Publication number
- CN2795660Y CN2795660Y CNU2005200721675U CN200520072167U CN2795660Y CN 2795660 Y CN2795660 Y CN 2795660Y CN U2005200721675 U CNU2005200721675 U CN U2005200721675U CN 200520072167 U CN200520072167 U CN 200520072167U CN 2795660 Y CN2795660 Y CN 2795660Y
- Authority
- CN
- China
- Prior art keywords
- energy
- boiler
- arch
- grate
- vertical double
- 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
- Solid-Fuel Combustion (AREA)
Abstract
The utility model discloses a vertical double layer fire grate boiler with an energy saving arch. An energy-saving arch (8) is arranged in a lower hearth (11) which is a combustion chamber of the boiler, and is connected to the inner wall of a boiler furnace (1) and a lower grate (9); a combustion zone (12) with high temperature is formed between an upper grate (3) and a lower grate (9), and a smoke gas outlet (13) of a smoke leading chamber of the combustion zone is arranged on the energy-saving arch (8) and is positioned on the connecting part with the upper fire grate (3). The arrangement of the energy-saving arch of the utility model changes the structure of the combustion chamber, the stroke of the smoke gas is extended, the flow velocity of the smoke gas is raised, the combustion condition is improved, the heat efficiency is raised and the dust concentration is reduced.
Description
Affiliated technical field
The utility model relates to boiler, is specifically related to a kind of vertical double-grate boiler with energy-conservation arch.
Background technology
The minitype vertical type coal-burning boiler occupies certain proportion in industrial boilers in China, these minitype vertical type coal-burning boilers all are handwarmer basically, boiler thermal output is very low, and there is not the smoke abatement and dust control facility, the phenomenon of over-emitting black exhaust is quite serious, its smoke dust discharge concentration substantially exceeds national environmental standard, causes serious atmosphere pollution.For improving the present situation of China's urban environment severe contamination, some big and medium-sized cities are made the inaccurate scatter fire of raw coal of boiler of low capacity in succession, must change the regulation of fuel oil or gas fired-boiler into.But along with the rising of oil fuel price, the user more and more is difficult to bear economically, so people expect to have a kind of national requirements for environmental protection that both met, the coal-burning boiler that has higher thermal efficient again in a hurry.For in time satisfying users' demand, part boiler manufacturer has produced the double-layer grate vertical boiler, and the thermal efficiency is increased, and smoke density descends to some extent.
The coal of handwarmer does not carry out continuously, and its combustion process has periodically inevitably.Fresh fuel drops into the initial stage, and the coal seam is the thickest, and flowing resistance is big, and it is less to advance air capacity, but this moment, fuel was in the heating, drying stage, required air quantity seldom, so air has affluence.Along with fuel temperature constantly raises, a large amount of fuel volatile matters is separated out and is burnt, and coke enters the fierce burning phase, and effectively air capacity does not satisfy needs far away, makes burning be in anaerobic condition, causes incomplete combustion, and the phenomenon of chimney over-emitting black exhaust occurs.Along with the continuous burning of fuel, the coal seam is attenuate gradually, and required air quantity is less, and flowing resistance reduces simultaneously, and fire grate sucks air capacity to be increased, and occurs air excess again.The periodicity of handwarmer combustion process makes incomplete combustion loss too high, and boiler thermal output is low, simultaneously easy contaminated environment.
The burning of fixed carbon in the handwarmer except the condition that wind will be arranged, also will have a hot conditions.When temperature surpassed 1200 ℃, burning velocity sharply rose.Therefore fuel is fully burnt, the high temperature of keeping the fixed carbon combustion zone is extremely important.In addition, the CO of bottom burning generation
2Can be reduced upwards through the red-hot carbon in upper strata the time and generate CO, this is an endothermic reaction, thereby causes the relative cooling of this section superjacent, makes the burning of fixed carbon be tending towards difficulty, and it is short and burning is weak gradually to be more common in flame.
Summary of the invention
The purpose of this utility model is: a kind of vertical double-grate boiler with energy-conservation arch is provided, at the structure of vertical double-grate boiler with in the problem that exists aspect burning and the dedusting, change the structure of combustion chamber, overheavy firing, form the necessary condition that burns, improve burning, improve boiler thermal output, reduce the concentration of flue dust, reach the effect of not only energy-conservation but also environmental protection.
Technical solution of the present utility model is: be that energy-conservation arch is established in the combustion chamber in the lower hearth of boiler, this energy-conservation arch connects boiler furnace flue inwall and lower fire grating, form high temperature combustion zone between last lower fire grating, the exhanst gas outlet of the logical smoke-box in combustion zone is provided with and is positioned on the energy-conservation arch and the upper fire-grating joint.
The utlity model has following advantage: the setting of energy-conservation arch makes the lower hearth volume dwindle 40%, reduced the actual internal area of smoke outlet, prolonged the stroke of flue gas, improved the flow velocity of flue gas, it makes high-temperature flue gas, air (excess oxygen) reach CO, the CH that produces in the combustion zone
4, CO
2Mix Deng fully, and burn away at lower hearth and to have reduced thermal loss; Being provided with of energy-conservation arch formed stable high temperature combustion zone, impels CO in the space combustion heat release, improved boiler thermal output.
Description of drawings
Fig. 1 is the utility model structural representation
Among the figure: fire door, 6U type leftover bits and pieces circle, 7 lower furnace doors, 8 energy-conservation arches, 9 lower fire gratings, 10 deashing slide blocks, 11 lower hearths, 12 high temperature combustion zones, 13 exhanst gas outlets in 1 flue, 2 shells, 3 upper fire-gratings, 4 upper furnace doors, 5
The specific embodiment
As shown in Figure 1, be that energy-conservation arch 8 is established in the combustion chamber in the lower hearth 11 of boiler, this energy-conservation arch 8 connects on the inwall and lower fire grating 9 of boiler furnace flue 1, form high temperature combustion zone 12 3,9 of last lower fire gratings, the exhanst gas outlet 13 of the logical smoke-box in combustion zone is provided with and is positioned on the energy-conservation arch 8 and upper fire-grating 3 joints, and deashing slide block 10 is set on the fire grate 9.
Add thermal technology's environmental protection test result of the actual operating state behind the arch from boiler, improved boiler is compared with the boiler of not transforming: a, fuel tolerance are strong, and I, II, III class bituminous coal can use; B, boiler thermal output obviously improve, and produce the steam of as much and economize on coal about 20%; C, because coal consumption amount reduces, throw the frequent degree of coal and also reduce, reduced stoker personnel's labour intensity; D, smoke dust discharge concentration reduce, and have alleviated the pollution to environment.
Claims (3)
1. vertical double-grate boiler with energy-conservation arch, it is characterized in that: be that energy-conservation arch (8) is established in the combustion chamber in the lower hearth (11) of boiler, this energy-conservation arch (8) connects on the inwall and lower fire grating (9) of boiler furnace flue (1), forms high temperature combustion zone (12) between last lower fire grating (3,9).
2. a kind of vertical double-grate boiler with energy-conservation arch according to claim 1 is characterized in that: the exhanst gas outlet (13) of the logical smoke-box in combustion chamber is provided with energy-conservation arch (8) and goes up and upper fire-grating (3) joint.
3. a kind of vertical double-grate boiler with energy-conservation arch according to claim 1 is characterized in that: deashing slide block (10) is installed on the lower fire grating (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200721675U CN2795660Y (en) | 2005-05-20 | 2005-05-20 | Vertical double layer fire grate boiler with energy saving arch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200721675U CN2795660Y (en) | 2005-05-20 | 2005-05-20 | Vertical double layer fire grate boiler with energy saving arch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2795660Y true CN2795660Y (en) | 2006-07-12 |
Family
ID=36813415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200721675U Expired - Fee Related CN2795660Y (en) | 2005-05-20 | 2005-05-20 | Vertical double layer fire grate boiler with energy saving arch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2795660Y (en) |
-
2005
- 2005-05-20 CN CNU2005200721675U patent/CN2795660Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2879022Y (en) | Biomass vaporization boiler | |
| CN202328186U (en) | Powdered coal boiler combusting device | |
| CN2795660Y (en) | Vertical double layer fire grate boiler with energy saving arch | |
| CN208042119U (en) | Parallel-connection type coal-burning powder heat medium heater | |
| CN201246869Y (en) | Vertical boiler with smoke folding wall | |
| CN2624057Y (en) | Small-sized inverse combustion coal gasification boiler | |
| CN2926824Y (en) | Smokeless secondary combustion environment-friendly energy-saving hot blast stove | |
| CN200975688Y (en) | Multipurpose secondary combustion environment-friendly energy-saving furnace | |
| CN201129718Y (en) | Fire coal type chain-grate stoker normal pressure combustion fire spraying boiler | |
| CN2504552Y (en) | Mobile burning boiler | |
| CN2725714Y (en) | Energy-saving environment protection boiler | |
| CN2483614Y (en) | Smokeless combustion apparatus | |
| CN2758592Y (en) | Coal gasifying boiler with double combustion chambers | |
| CN2859226Y (en) | Vertical water pipe semi-gas environmental protection boiler | |
| CN2416359Y (en) | Smoke prevention and dust control combustion apparatus | |
| CN2636084Y (en) | Double-grate vertical counter-combustion boiler | |
| CN2797879Y (en) | Smoke purification type coal boiler | |
| CN201462898U (en) | Hearth energy-saving building block | |
| CN2504549Y (en) | Environmetnal protection boiler | |
| CN201081400Y (en) | Indirect air-flow hot-blast stove | |
| CN101093076A (en) | Adequate, clean combustion equipment | |
| CN2546748Y (en) | Gas combustion industrial kiln | |
| CN2934923Y (en) | Three-chamber flame furnace | |
| CN2651597Y (en) | Assembled environmental protective gas boiler | |
| CN2542983Y (en) | Vertical oxygen-enriched coal-fired pollutionless boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HUAIANFEN YARD, TEZHONGSHEBEIANQUANJIANDUJIANYANYA Free format text: FORMER NAME OR ADDRESS: HUAI AN CITY INST OF BOILER PRESSURE CONTAINER DETECTION |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Jiangsu Province Special Equipment Safety Supervision Inspection Institute Huaian Branch Patentee before: Huai'an City Inst of Boiler Pressure Container Detection |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060712 |