CN212456782U - Double-drum longitudinally-arranged chamber-combustion biomass powder steam boiler - Google Patents
Double-drum longitudinally-arranged chamber-combustion biomass powder steam boiler Download PDFInfo
- Publication number
- CN212456782U CN212456782U CN202021085005.6U CN202021085005U CN212456782U CN 212456782 U CN212456782 U CN 212456782U CN 202021085005 U CN202021085005 U CN 202021085005U CN 212456782 U CN212456782 U CN 212456782U
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- Prior art keywords
- boiler
- chamber
- combustion chamber
- exhaust pipeline
- double
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 51
- 239000000843 powder Substances 0.000 title claims abstract description 36
- 239000002028 Biomass Substances 0.000 title claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003546 flue gas Substances 0.000 claims abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000779 smoke Substances 0.000 claims description 31
- 239000008236 heating water Substances 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000003517 fume Substances 0.000 claims 1
- 239000000446 fuel Substances 0.000 abstract description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 7
- 239000001301 oxygen Substances 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 238000004880 explosion Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
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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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- Solid-Fuel Combustion (AREA)
- Air Supply (AREA)
Abstract
The utility model provides a double-drum indulges formula room and fires living beings powder steam boiler, relate to boiler technical field, it includes the combustion chamber, the boiler room of setting above the combustion chamber and communicating with the combustion chamber, vertically be provided with two drums along vertically in the boiler room, connect through the water wall pipe that distributes around the boiler room is inside between two drums, the drum is connected with the inlet tube, the boiler room is connected with the exhaust pipe, be equipped with on the exhaust pipe and connect the economizer that the inlet tube was used for heating the water in the inlet pipe, the right-hand member of combustion chamber is equipped with the powder combustor, the powder combustor is equipped with the primary air entry, be equipped with the air heater who connects the air-supply line on the exhaust pipe, the powder combustor still is equipped with the overgrate air entry, the exhaust pipe passes through the air inlet end of a flue gas circulating pipe connection first forced draught blower. The utility model has smooth oxygen supply and can make the fuel fully burn.
Description
Technical Field
The utility model belongs to the technical field of the boiler technique and specifically relates to indicate a two drums are indulged and are put formula room and fire living beings powder steam boiler.
Background
The boiler is an energy converter, which is a device for heating working medium water or other fluids to certain parameters by using heat energy released by fuel combustion or other heat energy. The fire grate of the traditional boiler bears blocky fuel, cannot bear powdery biomass energy fuel, and has the problems of ash blockage, unsmooth oxygen supply, insufficient fuel combustion and the like easily existing in the traditional fire grate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double-drum longitudinal chamber combustion biomass powder steam boiler, the oxygen supply of which is smooth and easy, and the fuel can be fully combusted.
In order to solve the technical problem, the utility model discloses a following technical scheme: a double-drum longitudinal chamber combustion biomass powder steam boiler comprises a combustion chamber and a boiler chamber arranged above the combustion chamber and communicated with the combustion chamber, wherein two drums are longitudinally arranged in the boiler chamber, the two drums are connected through water wall pipes distributed around the interior of the boiler chamber, the drums are connected with water inlet pipes, the boiler chamber is connected with a smoke exhaust pipeline, the smoke exhaust pipeline is connected with an exhaust fan, an energy saver connected with the water inlet pipes and used for heating water in the water inlet pipes is arranged on the smoke exhaust pipeline, a powder burner is arranged at the right end of the combustion chamber and provided with a primary air inlet, the primary air inlet is connected with a first air feeder used for conveying primary air to the powder burner through an air inlet pipe, an air preheater connected with an air inlet pipe is arranged on the smoke exhaust pipeline, and a secondary air inlet is also arranged on the powder burner, the secondary air inlet is connected with a second air feeder used for conveying secondary air to the combustion chamber, the smoke exhaust pipeline is connected with the air inlet end of the first air feeder through a smoke circulating pipe, and a plurality of ash removing doors are arranged at the bottom of the combustion chamber.
Preferably, the exhaust duct comprises a front exhaust duct and a rear exhaust duct, one end of the front exhaust duct is connected with the boiler room, the other end of the front exhaust duct vertically extends downwards to the ground and is connected with the rear exhaust duct, and the tail end of the rear exhaust duct vertically faces upwards and is connected with the exhaust fan.
More preferably, the front smoke exhaust pipeline is connected with the rear smoke exhaust pipeline through a section of transition pipeline.
More preferably, the economizer is arranged on the front smoke exhaust pipeline; the air preheater is arranged on the rear smoke exhaust pipeline.
More preferably, the boiler chamber is wrapped with heat insulation materials.
More preferably, the rear side of the combustion chamber is provided with a hand staircase, and the top of the boiler chamber is provided with a platform staircase connected with the hand staircase.
More preferably, the left end of the combustion chamber is also provided with an explosion-proof door.
The beneficial effects of the utility model reside in that: the powder combustor can use powdered biomass fuels such as rice hull powder, rice bran powder, saw dust and the like, the fuel has low price and low cost, and by conveying primary air, secondary air and tertiary air provided by a flue gas circulating pipe to the combustion chamber, can provide sufficient oxygen to a great extent, the second air feeder generates stronger secondary air through the secondary air inlet, can disturb the airflow in the combustion chamber, enables the combustion of fuel to be more sufficient, enables the oxygen supply of the combustion chamber to be smoother, thereby achieving the aim of clean combustion of biomass fuel and realizing the environmental protection requirement of low nitrogen emission, and the arrangement of the energy saver and the air preheater makes full use of energy consumption, thereby not only improving the overall efficiency of the boiler, but also lowering the final exhaust gas temperature, in addition, the bottom of the combustion chamber is provided with a plurality of ash removal doors, so that the ash removal operation is simple and rapid.
Drawings
Fig. 1 is a schematic front view of the overall structure in an embodiment of the present invention;
FIG. 2 is a left side view of the overall structure in the embodiment;
fig. 3 is a schematic top view of the overall structure in the embodiment.
The reference signs are:
1-combustion chamber 2-boiler chamber 3-boiler barrel
4-water inlet pipe 5-smoke exhaust pipe 5 a-front smoke exhaust pipe
5 b-rear smoke exhaust duct 5 c-transition duct 6-first blower
7-energy saver 8-powder burner 8 a-primary air inlet
8 b-secondary air inlet 9-air inlet pipe 10-air preheater
11-flue gas circulating pipe 12-ash cleaning door 13-heat insulation material
14-hand staircase 15-platform staircase 16-explosion door.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
It should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, in the present disclosure, unless explicitly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-3, a double-drum longitudinally-arranged type chamber-fired biomass powder steam boiler comprises a combustion chamber 1, a boiler chamber 2 arranged above the combustion chamber 1 and communicated with the combustion chamber 1, two drums 3 are longitudinally arranged in the boiler chamber 2, the two drums 3 are connected through water wall pipes (not shown in the drawing) distributed around the interior of the boiler chamber 2, the drums 3 are connected with a water inlet pipe 4, the boiler chamber 2 is connected with a smoke exhaust pipe 5, the smoke exhaust pipe 5 is connected with an exhaust fan (not shown in the drawing), an energy saver 7 connected with the water inlet pipe 4 and used for heating water in the water inlet pipe 4 is arranged on the smoke exhaust pipe 5, a powder burner 8 is arranged at the right end of the combustion chamber 1, the powder burner 8 is provided with a primary air inlet 8a, the primary air inlet 8a is connected with a first air feeder 6 used for conveying primary air to the powder burner 8 through an air inlet pipe 9, an air preheater 10 connected with an air inlet pipe 9 is arranged on the smoke exhaust pipeline 5, the powder combustor 8 is further provided with a secondary air inlet 8b, the secondary air inlet 8b is connected with a second air feeder (not shown in the attached drawing) used for conveying secondary air to the combustion chamber 1, the smoke exhaust pipeline 5 is connected with the air inlet end of the first air feeder 6 through a smoke circulating pipe 11, and a plurality of ash removing doors 12 are arranged at the bottom of the combustion chamber 1.
The working principle of the double-drum longitudinally-arranged chamber-combustion biomass powder steam boiler provided by the embodiment is as follows: firstly, water is added into the boiler barrel 3 through the water inlet pipe 4, then the first air feeder 6 starts to feed air, the air enters the powder combustor 8 from the primary air inlet 8a, then the combustor 8 is started to enable biomass fuel powder to be injected into the combustion chamber 1 through the internal combustion nozzle for combustion, and further the combustion chamber is filled with high-temperature flue gas, meanwhile, the second air feeder is started to convey stronger wind power into the powder combustor 8, so that sufficient oxygen can be provided, the airflow in the combustion chamber 1 can be disturbed, the combustion of the fuel is more sufficient, the oxygen supply of the combustion chamber 1 is smoother, the water fed into the boiler barrel 3 through the water feeding equipment at one end of the water inlet pipe 4 can pass through the energy saver 7 to be preheated before entering the boiler barrel 3, the high-temperature flue gas exchanges heat with the water wall tube and the boiler barrel 3 after entering the boiler chamber 2, so that the water temperature rises and further generates steam, a steam valve can be arranged at the top of the drum 3 to discharge steam for use, the generated tail gas enters the smoke exhaust pipeline 5, the tail gas is fully utilized by the economizer 7 and the air preheater 10 before being discharged, and part of the tail gas enters the air inlet end of the first fan 6 through the flue gas circulating pipe 11 to be reused.
The boiler structure has the advantages that fuel is fully combusted, the thermal efficiency is high, the boiler can stably run in a state close to full load or even full load, in addition, the upper boiler room 2 and the boiler barrel 3 of the boiler can be independently assembled in a workshop of a factory building, the lower combustion chamber 1 can be installed on the site of a construction site, and then the two parts are combined, and a person skilled in the art knows that the upper boiler room and the lower boiler room are folded on the site and then only need to be provided with an external pipeline, a valve instrument and a masonry lower boiler wall, and an electric control system and related auxiliary machines can run after being provided with the electric control system and the related auxiliary machines, so that the site installation is convenient, the boiler structure is compact, the occupied area is small, and the appearance is.
Preferably, the exhaust duct 5 comprises a front exhaust duct 5a and a rear exhaust duct 5b, one end of the front exhaust duct 5a is connected with the boiler room 2, the other end of the front exhaust duct vertically extends downwards to the ground and is connected with the rear exhaust duct 5b, and the tail end of the rear exhaust duct 5b is vertically upwards connected with the exhaust fan, wherein the front exhaust duct 5a is connected with the rear exhaust duct 5b through a section of transition duct 5c, and the high-temperature tail gas retention time can be prolonged and then exhausted by arranging the front exhaust duct 5a and the rear exhaust duct 5b, so that the high-temperature tail gas can be fully utilized.
On the basis, the economizer 7 can be arranged on the front smoke exhaust pipeline 5a, the air preheater 10 is arranged on the rear smoke exhaust pipeline 5b, and the temperature of tail gas in the front smoke exhaust pipeline 5a is relatively high, so that the tail gas heat energy utilization can be maximized when the economizer is used for preheating water.
Preferably, the boiler room 2 may be wrapped with a heat insulating material 13 around the outside thereof to improve the heat insulating effect inside the boiler room 2.
More preferably, the rear side of the combustion chamber 1 is provided with a hand staircase 14, and the top of the boiler chamber 2 is provided with a platform staircase 15 connected with the hand staircase 14, so that the operation of overhauling and the like by workers is convenient.
In addition, in this embodiment, an explosion vent 16 may be further disposed at the left end of the combustion chamber 1, and when the pressure in the combustion chamber 1 is too high, the explosion vent 16 may be automatically opened to perform pressure relief, so as to improve the safety factor of the whole boiler.
The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.
In order to make it easier for those skilled in the art to understand the improvement of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and in order to clarify, some other elements have been omitted from this document, those skilled in the art should recognize that these omitted elements may also constitute the content of the present invention.
Claims (7)
1. The utility model provides a two drums are indulged and are put formula room burning living beings powder steam boiler, includes combustion chamber (1), sets up boiler room (2) above combustion chamber (1) and communicate with combustion chamber (1), its characterized in that: the boiler is characterized in that two drums (3) are longitudinally arranged in the boiler chamber (2), the two drums (3) are connected with each other through water wall pipes distributed around the inside of the boiler chamber (2), the drums (3) are connected with water inlet pipes (4), the boiler chamber (2) is connected with a smoke exhaust pipeline (5), the smoke exhaust pipeline (5) is connected with an exhaust fan, an energy saver (7) which is connected with the water inlet pipes (4) and used for heating water in the water inlet pipes (4) is arranged on the smoke exhaust pipeline (5), a powder burner (8) is arranged at the right end of the combustion chamber (1), a primary air inlet (8 a) is formed in the powder burner (8), a first air feeder (6) which is used for conveying primary air to the powder burner (8) is connected with the primary air inlet pipe (9) through an air inlet pipe (9), and an air preheater (10) which is connected with the air inlet pipe (9) is arranged on the smoke exhaust pipeline (, powder combustor (8) still are equipped with overgrate air entry (8 b), overgrate air entry (8 b) are connected with the second forced draught blower that is used for carrying the overgrate air to combustion chamber (1), the air inlet end of first forced draught blower (6) is connected through a flue gas circulating pipe (11) in discharge fume duct (5), the bottom of combustion chamber (1) is equipped with a plurality of deashing doors (12).
2. The double-drum longitudinally-arranged chamber-fired biomass powder steam boiler according to claim 1, characterized in that: the exhaust pipeline (5) comprises a front exhaust pipeline (5 a) and a rear exhaust pipeline (5 b), one end of the front exhaust pipeline (5 a) is connected with the boiler room (2), the other end of the front exhaust pipeline vertically extends downwards to the ground and is connected with the rear exhaust pipeline (5 b), and the tail end of the rear exhaust pipeline (5 b) vertically extends upwards and is connected with the exhaust fan.
3. The double-drum longitudinally-arranged chamber-fired biomass powder steam boiler according to claim 2, characterized in that: the front smoke exhaust pipeline (5 a) is connected with the rear smoke exhaust pipeline (5 b) through a section of transition pipeline (5 c).
4. The double-drum longitudinally-arranged chamber-fired biomass powder steam boiler according to claim 3, characterized in that: the economizer (7) is arranged on the front smoke exhaust pipeline (5 a); the air preheater (10) is arranged on the rear smoke exhaust pipeline (5 b).
5. The double-drum longitudinally-arranged chamber-fired biomass powder steam boiler according to claim 1, characterized in that: the periphery of the outside of the boiler chamber (2) is wrapped with heat insulation materials (13).
6. The double-drum longitudinally-arranged chamber-fired biomass powder steam boiler according to claim 1, characterized in that: the rear side of the combustion chamber (1) is provided with a hand staircase (14), and the top of the boiler chamber (2) is provided with a platform staircase (15) connected with the hand staircase (14).
7. The double-drum longitudinally-arranged chamber-fired biomass powder steam boiler according to claim 1, characterized in that: and an explosion-proof door (16) is also arranged at the left end of the combustion chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021085005.6U CN212456782U (en) | 2020-06-12 | 2020-06-12 | Double-drum longitudinally-arranged chamber-combustion biomass powder steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021085005.6U CN212456782U (en) | 2020-06-12 | 2020-06-12 | Double-drum longitudinally-arranged chamber-combustion biomass powder steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212456782U true CN212456782U (en) | 2021-02-02 |
Family
ID=74492388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021085005.6U Expired - Fee Related CN212456782U (en) | 2020-06-12 | 2020-06-12 | Double-drum longitudinally-arranged chamber-combustion biomass powder steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212456782U (en) |
-
2020
- 2020-06-12 CN CN202021085005.6U patent/CN212456782U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |