CN205155938U - A furnace for changing fire coal becomes thermal medium boiler that fires living beings - Google Patents
A furnace for changing fire coal becomes thermal medium boiler that fires living beings Download PDFInfo
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- CN205155938U CN205155938U CN201520875412.XU CN201520875412U CN205155938U CN 205155938 U CN205155938 U CN 205155938U CN 201520875412 U CN201520875412 U CN 201520875412U CN 205155938 U CN205155938 U CN 205155938U
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- Prior art keywords
- combustion
- furnace
- burner hearth
- secondary air
- thermal medium
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- 239000003245 coal Substances 0.000 title claims abstract description 13
- 239000002028 Biomass Substances 0.000 claims abstract description 8
- 238000002485 combustion reaction Methods 0.000 claims description 43
- 239000000446 fuel Substances 0.000 claims description 10
- 238000010304 firing Methods 0.000 claims description 4
- 239000000779 smoke Substances 0.000 abstract description 8
- 238000007664 blowing Methods 0.000 abstract description 3
- 239000003039 volatile agent Substances 0.000 abstract 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 239000000470 constituent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Combustion Of Fluid Fuel (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
本实用新型公开了一种用于改燃煤成为燃生物质的热载体锅炉的炉膛，所述热载体锅炉包括炉排和炉膛以及炉体，炉膛由墙体围成，在炉膛的墙体内设有上、下分层的二次风助燃管路，所述上、下分层的二次风助燃管路分别由若干个开设在墙体内的同一水平面布置的吹风管道组成，若干个吹风管道吹出的助燃风均环绕炉膛炉壁的内接圆切线方向设置，且上、下分层的二次风助燃管路中的吹风管道分别吹出的助燃风环绕内接圆切线的方向相反。本实用新型炉膛内的助燃风能形成正、反两个漩涡，使助燃风与炉膛内的可燃挥发份之间的混合更充分，从而使原来燃煤的炉膛在改为燃生物质后，能够燃烧更彻底，炉体无黑烟，锅炉的热效率比原来更高，大大减少了有害烟气的排放。
The utility model discloses a furnace of a heat carrier boiler for converting coal into biomass. The heat carrier boiler includes a grate, a furnace and a furnace body. There are upper and lower layered secondary air combustion-supporting pipelines. The upper and lower layered secondary air combustion-supporting pipelines are respectively composed of several blowing pipes arranged on the same horizontal plane in the wall. The combustion-supporting air blown out by the pipes is arranged around the tangent direction of the inscribed circle of the furnace wall, and the combustion-supporting air blown out by the blowing pipes in the upper and lower layered secondary air combustion-supporting pipelines respectively surrounds the inscribed circle tangent in opposite directions. The combustion-supporting wind in the furnace of the utility model can form positive and negative two vortices, so that the mixing between the combustion-supporting wind and the combustible volatiles in the furnace is more sufficient, so that the original coal-fired furnace can burn after being changed to burn biomass More thorough, there is no black smoke in the furnace body, the thermal efficiency of the boiler is higher than before, and the emission of harmful smoke is greatly reduced.
Description
Technical field
The utility model relates to a kind of vitals of Industrial Boiler, specifically refers to a kind of burner hearth of thermal medium boiler of biomass-burning, belongs to Industrial Boiler Technology field.
Background technology
As everyone knows, the thermal medium boiler being fuel with oil, natural gas, not only fuel cost is high, and also produces sulfur dioxide pollution environment after burning; And be fuel with coal, then burn endless, combustion thermal efficiency is low, and in burning, produce a large amount of flue gases and dust, and carries a large amount of coal ash particles, sulfur dioxide (SO2) emissions in air, causes severe contamination to environment, brings harm to the healthy of people.
In recent years, environmental problem is more and more subject to people's attention, for solving the coal-fired produced pollution, energy consumption is large, the problems such as combustion gas or oily operating cost height, China widelys popularize the thermal medium boiler of biomass burning, agricultural or forestry biomass raw material carry out processing as fuel by this boiler, but the biomass-burning thermal medium boiler run in the market has the following disadvantages: the secondary air combustion aid airduct namely arranged in burner hearth due to it is all on point left and right side being listed in burner hearth furnace wall, mixing thus between combustion air and the flammable fugitive constituent in burner hearth is undesirable, cause burning insufficient, body of heater has black smoke, the thermal efficiency of burning is lower, and produce more harmful smoke, cause environmental pollution.
Summary of the invention
The technical problems to be solved in the utility model overcomes the deficiencies in the prior art, provides a kind of combustion thermal efficiency high, and burning is more abundant, the burner hearth becoming the thermal medium boiler of biomass-burning for changing fire coal of more environmental protection and energy saving.
For solving the problems of the technologies described above, the utility model adopts a kind of like this burner hearth becoming the thermal medium boiler of biomass-burning for changing fire coal, described thermal medium boiler comprise for firing biomass fuel fire grate and be positioned at burner hearth on described fire grate and body of heater, described burner hearth is surrounded by body of wall, on being provided with in the body of wall of described burner hearth, the secondary air combustion aid pipeline of lower leaf, on described, the blower duct that the same level that the secondary air combustion aid pipeline of lower leaf is opened in body of wall by several is respectively arranged forms, the combustion air of described several blower duct blowout is all arranged around the inscribed circle tangential direction of burner hearth furnace wall, and on, the combustion air that blower duct in the secondary air combustion aid pipeline of lower leaf blows out respectively is contrary around the direction of described inscribed circle tangent line.
As a kind of preferred embodiment of the present utility model, the combustion air that blower duct in the secondary air combustion aid pipeline on described upper strata blows out is counterclockwise around the direction of described inscribed circle tangent line, and the combustion air that the blower duct in the secondary air combustion aid pipeline of described lower floor blows out is clockwise around the direction of described inscribed circle tangent line.
After adopting said structure, the utility model has following beneficial effect:
Because the burner hearth of existing coal-burning boiler can not be used for firing biomass fuel, thus the utility model is transformed for the burner hearth of existing coal-burning boiler, arrange in the body of wall of burner hearth, the secondary air combustion aid pipeline of lower leaf, on, the blower duct that the same level that the secondary air combustion aid pipeline of lower leaf is opened in body of wall by several is respectively arranged forms, on, the combustion air that blower duct in the secondary air combustion aid pipeline of lower leaf blows out respectively is contrary around the direction of the inscribed circle tangent line of burner hearth furnace wall, adopt such structure, make the combustion air blowing into burner hearth in burner hearth, generate upper and lower two rotary winds, one rotates clockwise, another counterclockwise rotates, combustion-supporting wind energy in burner hearth is just formed, anti-two whirlpools, in rotating forward, under the effect of reversion two whirlpools, make between combustion air and the flammable fugitive constituent in burner hearth mix more abundant, thus make original coal-fired burner hearth after changing biomass-burning into, can burn more thorough, body of heater is without black smoke, the thermal efficiency ratio of boiler is original higher, greatly reduce the discharge of harmful smoke.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
Fig. 1 is the utility model becomes the burner hearth of the thermal medium boiler of biomass-burning schematic front view for changing fire coal.
Fig. 2 is the utility model becomes the burner hearth of the thermal medium boiler of biomass-burning schematic side view for changing fire coal.
Fig. 3 is the generalized section along A-A line in Fig. 1.
Fig. 4 is the generalized section along B-B line in Fig. 1.
Detailed description of the invention
See a kind of burner hearth becoming the thermal medium boiler of biomass-burning for changing fire coal shown in Fig. 1 to Fig. 4, described thermal medium boiler comprises for the fire grate 1 of firing biomass fuel and the burner hearth 2 be positioned on described fire grate 1 and body of heater 3, described burner hearth 2 is surrounded by body of wall 2-1, be provided with in the body of wall 2-1 of described burner hearth 2, the secondary air combustion aid pipeline of lower leaf, on described, the blower duct 4 that the same level that the secondary air combustion aid pipeline of lower leaf is opened in body of wall 2-1 by several is respectively arranged forms, the combustion air 5 of described several blower duct 4 blowout is all arranged around inscribed circle 6 tangential direction of burner hearth 2 furnace wall, and on, the combustion air 5 that blower duct 4 in the secondary air combustion aid pipeline of lower leaf blows out respectively is contrary around the direction of described inscribed circle 6 tangent line.
As a kind of preferred embodiment of the present utility model, as shown in Figure 3,4, the combustion air 5 that blower duct 4 in the secondary air combustion aid pipeline on described upper strata blows out is counterclockwise around the direction of described inscribed circle 6 tangent line, and the combustion air 5 that the blower duct 4 in the secondary air combustion aid pipeline of described lower floor blows out is clockwise around the direction of described inscribed circle 6 tangent line.
In the utility model, as shown in Figure 3,4, the blower duct 4 in the secondary air combustion aid pipeline on upper strata preferably has four, and the blower duct 4 in the secondary air combustion aid pipeline of lower floor preferably has four.In addition, the quantity of described blower duct 4 can increase and decrease to some extent according to the heating power size of thermal medium boiler.
The utility model is by the boiler of existing coal combustion fuel, transform biomass-burning fuel as, the utility model changes biomass-burning project into specially for fire coal and designs, the burner hearth special procured in this transformation project, be provided with in this burner hearth, the secondary air combustion aid pipeline of lower leaf, secondary combustion-supporting wind is respectively from the blower duct blowout combustion-supporting pipeline, upper and lower two rotary winds can be become at freeze profile, one of them presents clockwise turning to, another presents counterclockwise turning to, combustion air in burner hearth is just formed, anti-two whirlpools, make between combustion air and the flammable fugitive constituent in burner hearth mix more abundant, thus make burning more thorough, body of heater is without black smoke, improve the thermal efficiency of boiler, decrease the discharge of harmful smoke simultaneously.
Claims (2)
1. one kind becomes the burner hearth of the thermal medium boiler of biomass-burning for changing fire coal, described thermal medium boiler comprises for the fire grate (1) of firing biomass fuel and the burner hearth (2) be positioned on described fire grate (1) and body of heater (3), described burner hearth (2) is surrounded by body of wall (2-1), it is characterized in that: be provided with in the body of wall (2-1) of described burner hearth (2), the secondary air combustion aid pipeline of lower leaf, on described, the blower duct (4) that the same level that the secondary air combustion aid pipeline of lower leaf is opened in body of wall (2-1) by several is respectively arranged forms, the combustion air (5) that described several blower duct (4) blow out all is arranged around inscribed circle (6) tangential direction of burner hearth (2) furnace wall, and on, the combustion air (5) that blower duct (4) in the secondary air combustion aid pipeline of lower leaf blows out respectively is contrary around the direction of described inscribed circle (6) tangent line.
2. the burner hearth becoming the thermal medium boiler of biomass-burning for changing fire coal according to claim 1, it is characterized in that: the combustion air (5) that the blower duct (4) in the secondary air combustion aid pipeline on described upper strata blows out is counterclockwise around the direction of described inscribed circle (6) tangent line, the combustion air (5) that the blower duct (4) in the secondary air combustion aid pipeline of described lower floor blows out is clockwise around the direction of described inscribed circle (6) tangent line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875412.XU CN205155938U (en) | 2015-11-05 | 2015-11-05 | A furnace for changing fire coal becomes thermal medium boiler that fires living beings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875412.XU CN205155938U (en) | 2015-11-05 | 2015-11-05 | A furnace for changing fire coal becomes thermal medium boiler that fires living beings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205155938U true CN205155938U (en) | 2016-04-13 |
Family
ID=55691627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520875412.XU Expired - Fee Related CN205155938U (en) | 2015-11-05 | 2015-11-05 | A furnace for changing fire coal becomes thermal medium boiler that fires living beings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205155938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116753517A (en) * | 2023-04-25 | 2023-09-15 | 济宁华源热电有限公司 | A furnace combustion-supporting device for thermal power units |
-
2015
- 2015-11-05 CN CN201520875412.XU patent/CN205155938U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116753517A (en) * | 2023-04-25 | 2023-09-15 | 济宁华源热电有限公司 | A furnace combustion-supporting device for thermal power units |
| CN116753517B (en) * | 2023-04-25 | 2025-12-02 | 济宁华源热电有限公司 | A combustion aid device for a thermal power unit furnace |
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| 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 |
Granted publication date: 20160413 |
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| CF01 | Termination of patent right due to non-payment of annual fee |