CN212585212U - Biomass gasification furnace - Google Patents
Biomass gasification furnace Download PDFInfo
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- CN212585212U CN212585212U CN202020858725.5U CN202020858725U CN212585212U CN 212585212 U CN212585212 U CN 212585212U CN 202020858725 U CN202020858725 U CN 202020858725U CN 212585212 U CN212585212 U CN 212585212U
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Abstract
The utility model provides a biomass gasification furnace, which comprises a heat insulation furnace chamber, a square coil pipe radiation heating surface and a convection section heating surface, wherein the heat insulation furnace chamber is arranged at the front part of a furnace chamber of a boiler body; the top of the boiler body is provided with a front header and an outlet header, the bottom of the boiler body is provided with an inlet header, the rear side surface of the boiler body is provided with a middle header, a heat-conducting oil inlet of the boiler body enters the inlet header, the inlet header is communicated with a heating surface of the convection section and is transmitted to the middle header, an oil outlet of the middle header is communicated to a radiation heating surface of the square coil pipe, the heat-conducting oil is distributed to the top canopy pipe through the radiation heating surface of the square coil pipe, and the heat-conducting oil passing through the top canopy pipe is distributed to the front header and then enters the outlet header through the top canopy pipe; the bottom of the heat insulation hearth is provided with a slope. The utility model improves the fuel combustion efficiency, ensures the combustion quality and discharges condensed water in time; the heating area of the boiler is ensured, and the accumulated dust of the convection section is slight or even zero.
Description
Technical Field
The utility model relates to a gasification burner field especially relates to a living beings gasification burner.
Background
The structural form of the biomass pyrolysis gas-fired organic heat carrier boiler in the prior art is basically a disc tube horizontal or vertical organic heat carrier boiler, but the structure has small hearth volume, is not beneficial to ash removal and is not easy to discharge condensed water during combustion.
Published chinese utility model patent, application No. CN200920268992.0, patent name: organic heat carrier boiler, application date: 2009-10-28, the utility model relates to an organic heat carrier boiler, including the precombustion chamber, coil pipe formula heating surface and tube rack formula heating surface, organic heat carrier boiler's combustion agent is superfine buggy. Through burning superfine buggy, the fineness of ashes will be higher after burning out, most ashes are inhaled by the draught fan along with the disturbance of flue gas, so the bottom of boiler body no longer is equipped with slag chute and slagging-off machine, the mounting process of boiler has been simplified, greatly reduced boiler installation and construction expenses, and saved the slagging-off machine, reduced the initial investment of equipment, operation and the maintenance work of boiler have been simplified, in addition, the power consumption of slagging-off machine is also deducted from the whole power consumption of boiler, the production running cost has been practiced thrift. In addition, because the pre-combustion chamber is not provided with a heat exchange tube bundle, the temperature is kept higher, the volatile powder of the pulverized coal particles is quickly separated out, is immediately ignited and is fully combusted, the burn-off rate of the fuel is ensured by the superfine pulverized coal, and the thermal efficiency of the boiler is fundamentally improved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a biomass gasification furnace, which comprises a heat insulation furnace hearth 1, a square coil pipe radiation heating surface 2 and a convection section heating surface 3, wherein the heat insulation furnace hearth 1 is arranged at the front part of the furnace hearth of a boiler body, and is characterized in that a combustion agent of the boiler body is biomass gas;
the top of the boiler body is provided with a front header 4 and an outlet header 5, the bottom of the boiler body is provided with an inlet header 6, the rear side surface of the boiler body is provided with a middle header 7, a heat-conducting oil inlet of the boiler body enters the inlet header 6, the inlet header 6 is communicated with a convection section heating surface 3 and is transmitted to the middle header 7, an oil outlet of the middle header 7 is communicated to a square coil radiation heating surface 2, the heat-conducting oil is distributed to a ceiling pipe 8 through the square coil radiation heating surface 2, and the heat-conducting oil passing through the ceiling pipe 8 is distributed to the front header 4 and then enters the outlet header 5 through the ceiling pipe 8;
the one end that the cigarette outlet 9 was kept away from to adiabatic furnace 1 is provided with the combustor interface 10 of being connected with the combustor, and the slope is formed to setting from high to low in the direction of keeping away from cigarette outlet 9 from being close to in adiabatic furnace 1 bottom, is provided with furnace blow off pipe 11 in the lowest department on slope.
Preferably, the convection section heating surface 3 adopts a three-pass structure.
Preferably, a convection section ash removal door 12 is installed in the convection section heating surface 3, and a plurality of convection section ash removal doors 12 are arranged.
Preferably, a V-shaped ash falling device 13 is arranged below the convection section heating surface 3 of the boiler body, and a shock wave ash blowing device 14 and a fixed ash blowing device 15 are respectively arranged at the top and the side of the boiler body.
Preferably, the ash falling device 13 is fixedly installed below the convection section heating surface 3 of the boiler body through a body supporting steel frame 16.
Preferably, the external packing structure of the boiler body adopts an all-welded furnace body external packing.
Preferably, the top of the boiler body is provided with an explosion door 17, and one side of the heat-insulating hearth 1 is provided with an inspection door 18.
The utility model has the advantages that:
(1) improving the fuel combustion efficiency: through the large heat-insulation hearth, the residence time of the fuel in the hearth is prolonged, and the fuel is easier to burn out;
(2) the combustion quality is ensured: the hearth belongs to positive pressure combustion, and the overall structure of the boiler is wrapped by a fully-welded furnace body, so that the designed excess air coefficient can be ensured and is closer to a theoretical combustion calculation value;
(3) timely draining condensed water: condensed water generated by combustion of the fuel in the hearth can be discharged out of the hearth in time through the drain pipe;
(4) the heating surface of the convection section adopts a three-return structure, so that the heating area of the boiler is ensured, and the soot deposition of the convection section of the boiler is slight or even zero.
Drawings
FIG. 1 is a front view structural diagram of the present invention;
FIG. 2 is a top view of the structure of the present invention;
in the figure, the position of the upper end of the main shaft,
1. a heat-insulating hearth; 2. a square coil radiation heating surface; 3. a convection section heating surface; 4. a front header;
5. an outlet header; 6. an inlet header; 7. a middle header; 8. a ceiling pipe; 9. a smoke outlet;
10. a burner interface; 11. a hearth blow-off pipe; 12. a convection section ash removal door; 13. ash-falling clothes
Placing; 14. a shock wave soot blower; 15. a fixed soot blower; 16. the body supports the steel frame;
17. an explosion vent; 18. the door is inspected.
Detailed Description
In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.
As shown in fig. 1-2, the present invention comprises: the boiler comprises an insulating hearth 1, a square coil pipe radiation heating surface 2 and a convection section heating surface 3, wherein the insulating hearth 1 is arranged at the front part of a hearth of a boiler body, and is characterized in that a combustion agent of the boiler body is biomass gas;
the heat transfer oil inlet of the boiler body enters the inlet collecting box 6, the inlet collecting box 6 is communicated with the convection section heating surface 3 and is transmitted to the middle collecting box 7, the heat transfer oil is distributed to each group of convection section heating surfaces 3 by the inlet collecting box 6, the heat transfer oil entering the middle collecting box 7 is distributed to the square coil pipe radiation heating surface 2, is distributed to the top canopy pipe 8 through the square coil pipe radiation heating surface 2, and the heat transfer oil passing through the top canopy pipe 8 is distributed to the front collecting box 4 and then enters the outlet collecting box 5 through the top canopy pipe 8;
the one end that the cigarette outlet 9 was kept away from to adiabatic furnace 1 is provided with the combustor interface 10 of being connected with the combustor, and the slope is formed to setting from high to low in the direction of keeping away from cigarette outlet 9 from being close to in adiabatic furnace 1 bottom, is provided with furnace blow off pipe 11 in the lowest department on slope.
The use process of this embodiment is as follows:
on one hand, heat conducting oil of the boiler body enters the inlet header 6 from an inlet, an outlet of the inlet header 6 is communicated with the convection section heating surface 3 and transmits the heat conducting oil to the middle header 7, wherein the heat conducting oil of the convection section heating surface 3 is distributed by an outlet of the inlet header 6;
the heat conducting oil entering the middle header 7 is distributed to the square coil pipe radiation heating surface 2 and is distributed to the ceiling pipe 8 through the square coil pipe radiation heating surface 2;
the heat transfer oil passing through the ceiling pipe 8 is distributed to the front header 4 and then enters the outlet header 5 through the ceiling pipe 8 again to complete the whole work flow of the heat transfer oil.
On the other hand, biomass gas is sprayed into an insulated hearth 1 of the boiler from a burner through a burner interface 10 to be combusted, high-temperature flue gas which is fully combusted exchanges heat with a convection section heating surface 3 through a square coil pipe radiation heating surface 2, and cooled flue gas is discharged from a smoke outlet 9, so that the residence time of fuel in the hearth is prolonged through a large insulated hearth, and the fuel is easier to burn out;
on the other hand, dust impurities and the like remained in the flue gas after heat exchange are blown down into the ash falling device through the ash blowing devices in multiple directions to be uniformly collected and discharged;
on the other hand, the back of the bottom of the hearth is higher than the front of the bottom of the hearth, so that a water collecting channel is formed, and condensed water generated by combustion of fuel in the hearth can be discharged out of the hearth in time through the drain pipe.
In the present embodiment, it is preferable that the convection section heating surface 3 adopts a three-pass structure.
By adopting the structure, the heating surface of the convection section adopts a three-return structure, so that the heating area of the boiler is ensured, and the soot deposition of the convection section of the boiler is slight or even no.
In the present embodiment, it is preferable that a convection section ash removal door 12 is installed in the convection section heating surface 3, and a plurality of convection section ash removal doors 12 are provided.
Due to the structure, the convection section heating surface 3 adopts a three-return structure, and the two convection section ash removal doors 12 are arranged on the corresponding return, so that each section can be cleaned in time conveniently, and the working efficiency is improved.
In the embodiment, preferably, a V-shaped ash falling device 13 is arranged below the heating surface 3 of the convection section of the boiler body, and a shock wave ash blowing device 14 and a fixed ash blowing device 15 are respectively arranged at the top and the side of the boiler body.
In the present embodiment, the ash falling device 13 is preferably fixedly installed below the convection section heating surface 3 of the boiler body through a body supporting steel frame 16.
Set up above-mentioned structure, adopt steel framework can only effectively guarantee to prick the stability that can carry the device, provide the safety guarantee for production.
In this embodiment, the external enclosure structure of the boiler body is preferably an all-welded external enclosure.
By the structure, because the hearth belongs to positive pressure combustion, the overall structure of the boiler adopts the all-welded furnace body to be wrapped, so that the designed excess air coefficient can be ensured and is closer to the theoretical combustion calculation value.
In the present embodiment, it is preferable that an explosion vent 17 is installed on the top of the boiler body, and an inspection door 18 is installed on one side of the heat-insulating furnace 1.
Set up above-mentioned structure, adopt explosion vent 17 to be in order to guarantee that the atmospheric pressure of whole device is balanced, improve the security, inspection door 18 on the adiabatic furnace 1 is for the convenience of staff's operation, observes particular case in real time, improves work efficiency.
The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.
Claims (7)
1. A biomass gasification furnace comprises a heat-insulating hearth (1), a square coil pipe radiation heating surface (2) and a convection section heating surface (3), wherein the heat-insulating hearth (1) is arranged at the front part of a hearth of a boiler body, and is characterized in that a combustion agent of the boiler body is biomass gas;
the heat transfer oil boiler is characterized in that a front header (4) and an outlet header (5) are arranged at the top of the boiler body, an inlet header (6) is arranged at the bottom of the boiler body, a middle header (7) is arranged on the rear side surface of the boiler body, a heat transfer oil inlet of the boiler body enters the inlet header (6), the inlet header (6) is communicated with a convection section heating surface (3) and is transmitted to the middle header (7), an oil outlet of the middle header (7) is communicated to a square coil radiation heating surface (2), is distributed to a ceiling pipe (8) through the square coil radiation heating surface (2), and the heat transfer oil passing through the ceiling pipe (8) is distributed to the front header (4) and then enters the outlet header (5) through the ceiling pipe (8);
one end of the heat-insulating hearth (1) far away from the smoke outlet (9) is provided with a burner interface (10) connected with a burner, the bottom of the heat-insulating hearth (1) is arranged to form a slope from high to low in the direction from being close to the smoke outlet (9) to be far away, and a hearth sewage discharge pipe (11) is arranged at the lowest position of the slope.
2. The biomass gasification furnace of claim 1, wherein: the convection section heating surface (3) adopts a three-return structure.
3. The biomass gasification furnace of claim 2, wherein: a convection section ash removal door (12) is installed in the convection section heating surface (3), and a plurality of convection section ash removal doors (12) are arranged.
4. The biomass gasification furnace of claim 3, wherein: the boiler body is arranged below the convection section heating surface (3) and is provided with a V-shaped ash falling device (13), and the top and the side of the boiler body are respectively provided with a shock wave ash blowing device (14) and a fixed ash blowing device (15).
5. The biomass gasification furnace of claim 4, wherein: the ash falling device (13) is fixedly arranged below the convection section heating surface (3) of the boiler body through a body supporting steel frame (16).
6. The biomass gasification furnace of claim 5, wherein: the outer covering structure of the boiler body adopts an all-welded furnace body outer covering.
7. The biomass gasification furnace of claim 6, wherein: an explosion door (17) is installed at the top of the boiler body, and an inspection door (18) is installed on one side of the heat-insulation hearth (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020858725.5U CN212585212U (en) | 2020-05-20 | 2020-05-20 | Biomass gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020858725.5U CN212585212U (en) | 2020-05-20 | 2020-05-20 | Biomass gasification furnace |
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| Publication Number | Publication Date |
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| CN212585212U true CN212585212U (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020858725.5U Active CN212585212U (en) | 2020-05-20 | 2020-05-20 | Biomass gasification furnace |
Country Status (1)
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| CN (1) | CN212585212U (en) |
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2020
- 2020-05-20 CN CN202020858725.5U patent/CN212585212U/en active Active
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