CN218379469U - Air supply feeding device for biomass boiler - Google Patents
Air supply feeding device for biomass boiler Download PDFInfo
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- CN218379469U CN218379469U CN202123291532.XU CN202123291532U CN218379469U CN 218379469 U CN218379469 U CN 218379469U CN 202123291532 U CN202123291532 U CN 202123291532U CN 218379469 U CN218379469 U CN 218379469U
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- air supply
- pipe
- feeding
- air
- branch pipes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses an air supply feeder for biomass boiler, including the feeder pipe, the feeder pipe comprises feeder pipe vertical section and feeder pipe slope section, the outside of feeder pipe vertical section and feeder pipe slope section junction is equipped with first air supply subassembly, first air supply subassembly includes the female pipe of first air supply, the female pipe of first air supply is linked together with the feeder pipe through first air supply branch pipe, feeder pipe slope section main part upper portion is equipped with second air supply subassembly, second air supply subassembly includes the female pipe of second air supply, the female pipe of second air supply is linked together with the feeder pipe through second air supply branch pipe, feeder pipe slope section main part lower part is equipped with third air supply subassembly, third air supply subassembly includes the female pipe of third air supply, the female pipe of third air supply is linked together with the feeder pipe through third air supply branch pipe. The utility model provides an air supply feeder can connect boiler overgrate air pipeline, combines together the pay-off with the function of air supply, guarantees the smoothness of pay-off, avoids furnace tempering, ensures the operation of boiler safety and stability.
Description
Technical Field
The utility model relates to an use living beings as circulating fluidized bed boiler of fuel, specific theory relates to an air supply feeder for biomass boiler, belongs to biomass boiler technical field.
Background
In China, more than 50 industrial boilers are used, the coal consumption is about 1/3 of the total coal consumption in China every year, the environmental pollution caused by coal-fired industrial boilers is very serious, and a large number of industrial boilers must be replaced by clean energy. With the continuous and sharp increase of the domestic environmental protection demand, the agriculture and forestry residues are used as boiler fuel according to the biomass resource conditions of China, and the boiler has positive significance for saving conventional energy, optimizing the energy structure of China and reducing the environmental pollution.
Common biomass fuels include: straw, rice straw, firewood, wood chips, peanut shells, melon seed shells, beet pulp, bark and other waste crops. However, as the fuel of the boiler, compared with pulverized coal, the composition of the fuel is more complex, the calorific value is relatively lower, and the biomass boiler needs more fuel in unit time on the premise of the same evaporation capacity of the boiler. In order to guarantee continuous and stable supply of fuel, the biomass boiler is provided with more feeding devices and larger inner sections of feeding pipes, so that flame in a hearth easily burns upwards along the fuel in the feeding pipes, and the problem of hearth tempering occurs.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to not enough in the background art, provide an air supply feeder for biomass boiler, can connect boiler overgrate air pipeline, combine together the pay-off with the function of air supply, guarantee the smoothness of pay-off, avoid furnace tempering, guarantee boiler safety and stability operation.
For solving the technical problem, the utility model adopts the following technical scheme:
an air supply and feeding device for a biomass boiler comprises a feeding pipe, wherein the feeding pipe consists of a feeding pipe vertical section at the upper part and a feeding pipe inclined section at the lower part; a first air supply assembly is arranged outside the joint of the vertical section and the inclined section of the feeding pipe, the first air supply assembly comprises a first air supply main pipe which is horizontally arranged, and the first air supply main pipe is communicated with the inner cavity of the feeding pipe through first air supply branch pipes which are arranged in rows;
the upper part of the main body of the inclined section of the feeding pipe is provided with a second air supply assembly, the second air supply assembly comprises a second air supply main pipe which is horizontally arranged, and the second air supply main pipe is communicated with the inner cavity of the feeding pipe through second air supply branch pipes which are arranged in rows;
a third air supply assembly is arranged at the lower part of the main body of the inclined section of the feeding pipe and comprises a third air supply main pipe which is horizontally arranged, and the third air supply main pipe is communicated with the inner cavity of the feeding pipe through third air supply branch pipes which are arranged in rows;
and the first air supply main pipe, the second air supply main pipe and the third air supply main pipe are all connected with a secondary air pipeline of the boiler.
Further, the top end of the vertical section of the feeding pipe is connected with a feeding device; the lower part of the main body of the inclined section of the feeding pipe is provided with a feeding corner, and the bottom end of the inclined section of the feeding pipe penetrates through the water-cooled wall.
Furthermore, first air supply branch pipe is the slope setting, the top and the female pipe fixed connection of first air supply branch pipe, the bottom and the feed pipe fixed connection of first air supply branch pipe.
Furthermore, the number of the first air supply branch pipes is seven, and the adjacent first air supply branch pipes are arranged at equal intervals.
Furthermore, the second air supply branch pipe is arranged vertically, the top end of the second air supply branch pipe is fixedly connected with the second air supply main pipe, and the bottom end of the second air supply branch pipe is fixedly connected with the feeding pipe.
Furthermore, the number of the second air supply branch pipes is seven, and the adjacent second air supply branch pipes are arranged at equal intervals.
Furthermore, the third air supply branch pipe is obliquely arranged, the top end of the third air supply branch pipe is fixedly connected with the third air supply main pipe, and the bottom end of the third air supply main pipe is fixedly connected with the feeding pipe.
Furthermore, the number of the third air supply branch pipes is seven, and the adjacent third air supply branch pipes are arranged at equal intervals.
Furthermore, the first air supply main pipe, the second air supply main pipe and the third air supply main pipe are arranged in parallel.
The utility model adopts the above technical scheme after, compare with prior art, have following advantage:
the utility model provides a feeder with larger cross section inside a feeding pipe, which is characterized in that three groups of air supply assemblies which are matched with each other are arranged, the air supply assemblies are connected with a secondary air pipeline of a boiler, and in the feeding process, a fluidization state is always kept inside the feeding pipe through high-pressure blowing of secondary air, so that materials cannot be attached to the inside of the feeding pipe, the smoothness of feeding is increased, the materials are prevented from being accumulated on the inner wall of the feeding pipe, and the fuel density required by stable operation of the boiler is ensured;
the utility model increases the internal pressure of the feeding pipe through the connection of secondary air, ensures the sealing performance of the hearth, avoids the upward combustion of flame in the hearth along the fuel in the feeding pipe, and ensures the safe and stable operation of the boiler;
the utility model discloses in because partial overgrate air sends into furnace through the device, reducible overgrate air spout, the trompil quantity on the reducible water-cooling wall.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a front view of the structure of the present invention;
fig. 2 is a top view of the present invention.
In the figure, 1-feeding pipe, 11-feeding pipe vertical section, 12-feeding pipe inclined section, 2-water cooling wall, 3-first air supply component, 31-first air supply main pipe, 32-first air supply branch pipe, 4-second air supply component, 41-second air supply main pipe, 42-second air supply branch pipe, 5-third air supply component, 51-third air supply main pipe and 52-third air supply branch pipe.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1-2 together, the utility model provides an air supply feeder for biomass boiler, including feeder pipe 1, feeder pipe 1 comprises upper portion feeder pipe vertical section 11 and lower part feeder pipe slope section 12, and the bottom of feeder pipe vertical section 11 is connected with the top of feeder pipe slope section 12, and the inner chamber is linked together.
The top end of the feeding pipe vertical section 11 is connected with a feeding device; the lower part of the main body of the feeding pipe inclined section 12 is provided with a corner for feeding, and the bottom end of the feeding pipe inclined section 12 penetrates through the water-cooled wall 2 to feed materials into the hearth.
The outside of the junction of the vertical section 11 of the feeding pipe and the inclined section 12 of the feeding pipe is provided with a first air supply assembly 3, and the first air supply assembly 3 mainly prevents the materials from being accumulated at the corners.
The first air supply assembly 3 comprises a first air supply main pipe 31 which is horizontally arranged, and the first air supply main pipe 31 is communicated with the inner cavity of the feeding pipe 1 through first air supply branch pipes 32 which are arranged in rows; the first air supply branch pipe 32 is obliquely arranged, the top end of the first air supply branch pipe 32 is fixedly connected with the first air supply main pipe 31, and the bottom end of the first air supply branch pipe 32 is fixedly connected with the feeding pipe 1; the number of the first air supply branch pipes 32 is seven, and the adjacent first air supply branch pipes 32 are arranged at equal intervals.
The upper part of the main body of the feeding pipe inclined section 12 is provided with a second air supply assembly 4, and the second air supply assembly 4 mainly prevents hearth flame from burning along the material in the feeding pipe 1.
The second air supply assembly 4 comprises a second air supply main pipe 41 which is horizontally arranged, and the second air supply main pipe 41 is communicated with the inner cavity of the feeding pipe 1 through second air supply branch pipes 42 which are arranged in rows; the second air supply branch pipe 42 is vertically arranged, the top end of the second air supply branch pipe 42 is fixedly connected with the second air supply main pipe 41, and the bottom end of the second air supply branch pipe 42 is fixedly connected with the feeding pipe 1; the number of the second air supply branch pipes 42 is seven, and the adjacent second air supply branch pipes 42 are arranged at equal intervals.
The lower part of the main body of the feeding pipe inclined section 12 is provided with a third air supply assembly 5, and the third air supply assembly 5 prevents materials from being accumulated at a corner and prevents flame of a hearth from burning along the materials in the feeding pipe 1.
The third air supply assembly 5 comprises a third air supply main pipe 51 which is horizontally arranged, and the third air supply main pipe 51 is communicated with the inner cavity of the feeding pipe 1 through third air supply branch pipes 52 which are arranged in rows; the third air supply branch pipe 52 is obliquely arranged, the top end of the third air supply branch pipe 52 is fixedly connected with the third air supply main pipe 51, and the bottom end of the third air supply main pipe 51 is fixedly connected with the feeding pipe 1; the number of the third air supply branch pipes 52 is seven, and the adjacent third air supply branch pipes 52 are arranged at equal intervals.
The first air supply main pipe 31, the second air supply main pipe 41 and the third air supply main pipe 51 are arranged in parallel, and the first air supply main pipe 31, the second air supply main pipe 41 and the third air supply main pipe 51 are all connected with a secondary air pipeline of the boiler.
The utility model discloses a concrete theory of operation:
the utility model provides a feeder with larger internal section of a feeding pipe, which is characterized in that three groups of mutually matched air supply assemblies are arranged, the air supply assemblies are connected with a secondary air pipeline of a boiler, and in the feeding process, the secondary air is blown under high pressure to keep the interior of the feeding pipe in a fluidized state all the time, so that materials can not be attached to the interior of the feeding pipe, the smoothness of feeding is increased, the materials are prevented from being accumulated on the inner wall of the feeding pipe, and the fuel density required by stable operation of the boiler is ensured;
the utility model increases the internal pressure of the feeding pipe through the connection of the secondary air, ensures the sealing performance of the hearth, avoids the upward combustion of flame in the hearth along the fuel in the feeding pipe, and ensures the safe operation of the boiler;
the utility model discloses in because partial overgrate air sends into furnace through the device, reducible overgrate air spout, the trompil quantity on the reducible water-cooling wall.
The above description is illustrative of the best mode contemplated for carrying out the present invention and the details not specifically mentioned are within the common general knowledge of those skilled in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (9)
1. An air supply and feeding device for a biomass boiler comprises a feeding pipe (1), wherein the feeding pipe (1) consists of a feeding pipe vertical section (11) at the upper part and a feeding pipe inclined section (12) at the lower part; the method is characterized in that: a first air supply assembly (3) is arranged outside the joint of the feeding pipe vertical section (11) and the feeding pipe inclined section (12), the first air supply assembly (3) comprises a first air supply main pipe (31) which is horizontally arranged, and the first air supply main pipe (31) is communicated with the inner cavity of the feeding pipe (1) through first air supply branch pipes (32) which are arranged in rows;
a second air supply assembly (4) is arranged at the upper part of the main body of the feeding pipe inclined section (12), the second air supply assembly (4) comprises a second air supply main pipe (41) which is horizontally arranged, and the second air supply main pipe (41) is communicated with the inner cavity of the feeding pipe (1) through second air supply branch pipes (42) which are arranged in rows;
a third air supply assembly (5) is arranged at the lower part of the main body of the inclined section (12) of the feeding pipe, the third air supply assembly (5) comprises a third air supply main pipe (51) which is horizontally arranged, and the third air supply main pipe (51) is communicated with the inner cavity of the feeding pipe (1) through third air supply branch pipes (52) which are arranged in rows;
and the first air supply main pipe (31), the second air supply main pipe (41) and the third air supply main pipe (51) are all connected with a secondary air pipeline of the boiler.
2. A supply air feeding device for a biomass boiler as set forth in claim 1, characterized in that: the top end of the vertical section (11) of the feeding pipe is connected with a feeding device; the lower part of the main body of the feeding pipe inclined section (12) is provided with a feeding corner, and the bottom end of the feeding pipe inclined section (12) penetrates through the water-cooled wall (2).
3. A supply air feeding device for a biomass boiler as set forth in claim 1, characterized in that: the first air supply branch pipe (32) is obliquely arranged, the top end of the first air supply branch pipe (32) is fixedly connected with the first air supply main pipe (31), and the bottom end of the first air supply branch pipe (32) is fixedly connected with the feeding pipe (1).
4. A supply air feeding device for a biomass boiler as set forth in claim 3, characterized in that: the number of the first air supply branch pipes (32) is seven, and the adjacent first air supply branch pipes (32) are arranged at equal intervals.
5. A supply air feeding device for a biomass boiler as set forth in claim 1, characterized in that: the second air supply branch pipes (42) are vertically arranged, the top ends of the second air supply branch pipes (42) are fixedly connected with the second air supply main pipe (41), and the bottom ends of the second air supply branch pipes (42) are fixedly connected with the feeding pipe (1).
6. A supply air feeding device for a biomass boiler as set forth in claim 5, characterized in that: the number of the second air supply branch pipes (42) is seven, and the adjacent second air supply branch pipes (42) are arranged at equal intervals.
7. A supply air feeding device for a biomass boiler as set forth in claim 1, characterized in that: the third air supply branch pipes (52) are obliquely arranged, the top ends of the third air supply branch pipes (52) are fixedly connected with the third air supply main pipe (51), and the bottom ends of the third air supply main pipe (51) are fixedly connected with the feeding pipe (1).
8. A supply air feeding apparatus for a biomass boiler as set forth in claim 7, wherein: the number of the third air supply branch pipes (52) is seven, and the adjacent third air supply branch pipes (52) are arranged at equal intervals.
9. A supply air feeding device for a biomass boiler as set forth in claim 1, characterized in that: the first air supply main pipe (31), the second air supply main pipe (41) and the third air supply main pipe (51) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123291532.XU CN218379469U (en) | 2021-12-25 | 2021-12-25 | Air supply feeding device for biomass boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123291532.XU CN218379469U (en) | 2021-12-25 | 2021-12-25 | Air supply feeding device for biomass boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218379469U true CN218379469U (en) | 2023-01-24 |
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ID=84950439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123291532.XU Active CN218379469U (en) | 2021-12-25 | 2021-12-25 | Air supply feeding device for biomass boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218379469U (en) |
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2021
- 2021-12-25 CN CN202123291532.XU patent/CN218379469U/en active Active
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