CN209415499U - A kind of boiler burner hearth air supply device - Google Patents
A kind of boiler burner hearth air supply device Download PDFInfo
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- CN209415499U CN209415499U CN201920067762.1U CN201920067762U CN209415499U CN 209415499 U CN209415499 U CN 209415499U CN 201920067762 U CN201920067762 U CN 201920067762U CN 209415499 U CN209415499 U CN 209415499U
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- air supply
- air
- burner hearth
- supply line
- boiler
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Abstract
The utility model refers to a kind of boiler burner hearth air supply device, including boiler furnace (1), blower (2), bellows (3) and air hose (4), the blower (2) and air hose (4) are connect with bellows (3) both ends respectively, it is characterized in that, the wall surface of the boiler furnace (1) is equipped with air supply line (5), the air intake of the air supply line (5) is connected with blower (2), the outlet air end of air supply line (5) is connected with boiler furnace (1), the air supply line (5) includes several ventilation ducts (6) and swirl diffuser (7), the swirl diffuser (7) is adjustable wind-force size.The utility model has the beneficial effects that can guarantee production efficiency by voluntarily adjusting volume of air supply.
Description
Technical field
The utility model belongs to industrial technical field, refers in particular to a kind of boiler burner hearth air supply device.
Background technique
Flowing is broadly divided into the emulsion zone flowing of lower part in Boiler Furnace and the dilute-phase zone on top flows, lower furnace portion emulsion zone
(cone section) is the main place that burning occurs, and air quantity is fed using air stage feeding.First air is led to by burner hearth bottom air distribution plate
It crosses the blast cap arranged thereon to feed, play fluidisation and burns for wind action；Secondary Air is by lower furnace portion emulsion zone different height
Surrounding side wall surface spout is fed, oxygen amount needed for aftercombustion.Therefore, Secondary Air in time feed on efficiency of combustion influence it is very big.
Due to burner hearth central area anoxic, cause fuel combustion insufficient, especially boiler fly ash combustible increases, and reduces
The Secondary Air of boiler efficiency, conventional boiler is fed inside burner hearth by Secondary Air straight channel, realizes the mesh of boiler fractional combustion
's.However, being fed by Secondary Air, burner hearth position, infeed point quantity is influenced and limitation, causes the penetration capacity of Secondary Air obvious
Deficiency, Secondary Air diffusivity is insufficient, causes furnace profile oxygen concentration to be unevenly distributed, ischaemia, the obvious anoxic in central area
Problem has seriously affected the effect of water-cooling vibration furnace grate fractional combustion.
Utility model content
The purpose of the utility model is to provide the diffusions that one kind can strengthen secondary wind direction burner hearth side wall and its interior zone
Ability and the boiler burner hearth air supply device that can freely adjust wind-force size.
Purpose of the utility model is realized as follows: the boiler burner hearth air supply device include boiler furnace, blower,
Bellows and air hose, the blower and air hose are connect with bellows both ends respectively, are uniformly provided on the wall surface of the boiler furnace several
The air intake of air supply line, the air supply line is connected with blower, and the outlet air end of air supply line is connected with boiler furnace, institute
Stating air supply line includes several ventilation ducts and swirl diffuser, and the swirl diffuser is adjustable wind-force size.
By using above-mentioned technical proposal, wind-force needed for blower and bellows are used to provide air supply device, on boiler furnace
Several air supply lines being uniformly arranged evenly spread to extraneous air inlet can in each air supply line, last uniform row
Into boiler, the ventilation duct of air supply line evenly distributes the air feed come in from the external world, makes the air feed being finally drained into boiler
Also more uniformly, guarantee the stabilization of wind-force, and the size of the then adjustable wind-force of the swirl diffuser in air supply line, if desired
Wind-force is small, and the wind-force size passed through can be adjusted by the size of swirl diffuser, obtains the wind-force into boiler further
Guarantee.
The utility model is further arranged to: direct current channel and swirl channel, the Whirl deposite tank are formed in the ventilation duct
Mouth is between direct current channel and swirl channel.The shape of the direct current channel is rectangle or regular polygon.
By using above-mentioned technical proposal, the air feed from blower forms High-speed DC wind by straight channel, and the high speed is straight
Stream wind is admitted to inside burner hearth, realizes that the Whirl deposite tank to air feed in the middle part of burner hearth, with certain swirl strength strengthens Secondary Air
Horizontal proliferation makes entire furnace profile oxygen concentration be evenly distributed, and solves the problems, such as anoxic of burning in the middle part of burner hearth, can significantly improve furnace
Interior combustion conditions play an important role to raising boiler combustion efficiency and limestone desulfurization efficiency.Swirl channel passes through swirl diffuser
Wind-force is adjusted, achievees the purpose that improve furnace profile oxygen concentration distributing homogeneity.
The utility model is further arranged to: the air supply line is symmetrically as on the wall surface of boiler furnace.
By using above-mentioned technical proposal, air supply line is symmetrically placed on the wall surface of boiler furnace, and multiple air supply lines make
Air feed in burner hearth is more stable, can preferably solve the problems, such as anoxic of burning in the middle part of burner hearth, can more significantly improve
The operating condition burnt in furnace.
The utility model is further arranged to: the outlet air end of the air supply line is equipped with flaring.
By using above-mentioned technical proposal, flaring increases air supply line for the area in air port, makes the air feed entered in furnace
Effect is more significant.
The utility model is further arranged to: the air supply line outer wall is equipped with valve, the valve close to bellows one end
It can control wind-force size.
By using above-mentioned technical proposal, valve can be switched, the size of adjustable blower air feed, be further ensured that into
Enter the size of wind-force in boiler.
Compared with the prior art, the utility model has prominent and beneficial technical effects that: by the way that valve and swirl diffuser is added,
The size for the wind-force that blower enters in burner hearth can be effectively controlled, and several ventilation ducts allow air feed even into burner hearth
It is interior, it can be effectively improved the case where burning in furnace according to the needs of use.
Detailed description of the invention
Fig. 1 is the concrete structure schematic diagram of the utility model；
Fig. 2 is the air supply line structural schematic diagram of the utility model；
In figure: 1. boiler furnaces, 2. blowers, 3. bellows, 4. air hoses, 5. air supply lines, 6. ventilation ducts, 7. swirl diffusers,
8. direct current channel, 9. swirl channels, 10. flarings, 11. valves.
Specific embodiment
The utility model is further described with specific embodiment with reference to the accompanying drawing, referring to Fig. 1-2:
A kind of boiler burner hearth air supply device, the air supply device include boiler furnace 1, blower 2, bellows 3 and air hose 4,
The blower 2 and air hose 4 are connect with 3 both ends of bellows respectively, are uniformly provided with several air supply lines on the wall surface of the boiler furnace 1
5, the air intake of the air supply line 5 is connected with blower 2, and the outlet air end of air supply line 5 is connected with boiler furnace 1, described
Air supply line 5 includes several ventilation ducts 6 and swirl diffuser 7, and the swirl diffuser 7 is adjustable wind-force size.Blower 2 and bellows 3
For wind-force needed for providing air supply device, several air supply lines 5 being uniformly arranged on boiler furnace 1 make extraneous air inlet can
To evenly spread in each air supply line 5, be finally uniformly discharged in boiler, the ventilation duct 6 of air supply line 5 will from the external world into
The air feed come evenly distributes, and the air feed being finally drained into boiler is made also more uniformly, to guarantee the stabilization of wind-force, and air supply line
The size of swirl diffuser 7 in 5 then adjustable wind-force, wind-force if desired is small, can be adjusted by the size of swirl diffuser 7
The wind-force size passed through is saved, guarantees that the wind-force into boiler further, meanwhile, the wind that the external world is supplied into boiler
Relative motion can also be carried out with original wind (such as: First air) inside original burner hearth, to improve flue gas (that is: wind) in furnace
Residence time inside thorax improves its internal disturbance effect, and then improves the combustion efficiency inside burner hearth.
Direct current channel and swirl channel 9 are formed in the ventilation duct 6, the swirl diffuser 7 is located at direct current channel 8 and rotation
Between circulation road 9.The shape of the direct current channel 8 is rectangle or regular polygon.Air feed from blower 2 is formed by straight channel
High-speed DC wind, the High-speed DC wind are admitted to inside burner hearth, realize the rotation to air feed in the middle part of burner hearth, with certain swirl strength
Stream wind strengthens the horizontal proliferation of Secondary Air, and entire furnace profile oxygen concentration is made to be evenly distributed, and solves anoxic of burning in the middle part of burner hearth
The problem of, combustion conditions in furnace can be significantly improved, are played an important role to raising boiler combustion efficiency and limestone desulfurization efficiency.Rotation
Circulation road 9 adjusts wind-force by swirl diffuser 7, achievees the purpose that improve furnace profile oxygen concentration distributing homogeneity.
The air supply line 5 is symmetrically placed on the wall surface of boiler furnace 1.Air supply line 5 is symmetrically placed in the wall of boiler furnace 1
On face, multiple air supply lines 5 keep the air feed in burner hearth more stable, can preferably solve asking for burner hearth middle part burning anoxic
Topic can more significantly improve the operating condition burnt in furnace.
The outlet air end of the air supply line 5 is equipped with flaring 10.Flaring 10 increases air supply line 5 for the area in air port, makes
It is more significant into the air feed effect in furnace.
5 outer wall of air supply line is equipped with valve 11 close to 3 one end of bellows, and the valve 11 can control wind-force size.Valve
Door 11 can switch, and the size of adjustable 2 air feed of blower is further ensured that the size into wind-force in boiler.
The utility model can be controlled effectively by the way that valve 11 and swirl diffuser 7 is added it can be seen from above structure
Blower 2 enters the size of the wind-force in burner hearth, and several ventilation ducts 6 allow air feed even into burner hearth, can basis
It can also be with original wind (example inside original burner hearth using the wind for needing to be effectively improved the case where burning in furnace, and being supplied
Relative motion such as: First air) is carried out, to improve residence time of the flue gas (that is: wind) inside burner hearth, improves its inside
Disturbance effect, and then improve the combustion efficiency inside burner hearth.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
It encloses, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the protection of the utility model
Within the scope of.
Claims (6)
1. a kind of boiler burner hearth air supply device, including boiler furnace (1), blower (2), bellows (3) and air hose (4), the wind
Machine (2) and air hose (4) are connect with bellows (3) both ends respectively, which is characterized in that the wall surface of the boiler furnace (1), which is equipped with, to be supplied
The air intake of air piping (5), the air supply line (5) is connected with blower (2), the outlet air end and Boiler Furnace of air supply line (5)
Thorax (1) is connected, and the air supply line (5) includes several ventilation ducts (6) and swirl diffuser (7), and the swirl diffuser (7) can adjust
Save wind-force size.
2. boiler according to claim 1 burner hearth air supply device, which is characterized in that formed in the ventilation duct (6) straight
Circulation road and swirl channel (9), the swirl diffuser (7) are located between direct current channel (8) and swirl channel (9).
3. boiler according to claim 2 burner hearth air supply device, which is characterized in that the shape of the direct current channel (8)
For rectangle or regular polygon.
4. boiler according to claim 1 burner hearth air supply device, which is characterized in that the air supply line (5) is symmetrically set
In on the wall surface of boiler furnace (1).
5. boiler according to claim 1 burner hearth air supply device, which is characterized in that the outlet air of the air supply line (5)
End is equipped with flaring (10).
6. boiler according to claim 1 burner hearth air supply device, which is characterized in that air supply line (5) outer wall leans on
Nearly bellows (3) one end is equipped with valve (11), and the valve (11) can control wind-force size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920067762.1U CN209415499U (en) | 2019-01-16 | 2019-01-16 | A kind of boiler burner hearth air supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920067762.1U CN209415499U (en) | 2019-01-16 | 2019-01-16 | A kind of boiler burner hearth air supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209415499U true CN209415499U (en) | 2019-09-20 |
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ID=67943606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920067762.1U Active CN209415499U (en) | 2019-01-16 | 2019-01-16 | A kind of boiler burner hearth air supply device |
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| CN (1) | CN209415499U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473365A (en) * | 2020-04-08 | 2020-07-31 | 浙江惠文美炉具有限公司 | Supercharging heat insulation type wind power combustion-supporting device for fan furnace |
| CN114151823A (en) * | 2021-12-13 | 2022-03-08 | 启明星宇节能科技股份有限公司 | New trend system and industrial boiler |
-
2019
- 2019-01-16 CN CN201920067762.1U patent/CN209415499U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473365A (en) * | 2020-04-08 | 2020-07-31 | 浙江惠文美炉具有限公司 | Supercharging heat insulation type wind power combustion-supporting device for fan furnace |
| CN114151823A (en) * | 2021-12-13 | 2022-03-08 | 启明星宇节能科技股份有限公司 | New trend system and industrial boiler |
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