CN208382215U - Boiler oxygen-enriched combustion system - Google Patents
Boiler oxygen-enriched combustion system Download PDFInfo
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- CN208382215U CN208382215U CN201820798482.3U CN201820798482U CN208382215U CN 208382215 U CN208382215 U CN 208382215U CN 201820798482 U CN201820798482 U CN 201820798482U CN 208382215 U CN208382215 U CN 208382215U
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- Prior art keywords
- boiler
- blower
- oxygen
- enriched combustion
- exhaust
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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
Abstract
The utility model provides a kind of boiler oxygen-enriched combustion system, including boiler and exhaust pipe, and exhaust pipe is helix tube, and one end is connected to the exhanst gas outlet of boiler, and the other end is connected to flue gas processing device；It is vented protective pipe sleeve to be set to outside exhaust pipe, exhaust pillar is equipped with the air inlet connecting with oxygen-enriched combustion aid close to the side wall of boiler, and exhaust pillar is equipped with gas outlet close to the side wall of flue gas processing device；One end of admission line is connected to the gas outlet of exhaust pillar, and the other end is connected with the burner hearth of boiler；The first blower is equipped in admission line.Boiler oxygen-enriched combustion system described in the utility model sufficiently and can efficiently use the waste heat of flue gas in boiler exhaust pipeline, and the effectively save energy, and structure is simple, manufacturing cost is lower, has preferable practicability.
Description
Technical field
The utility model relates to boiler plant technical field, in particular to a kind of boiler oxygen-enriched combustion system.
Background technique
The oxygen-containing gas that oxygen-enriched combusting is higher than air oxygen content burns, and is a kind of efficient energy-saving combustion skill
Art.Oxygen-enriched combusting energy-saving effect is significant, the service life of effective prolonged boiler, is conducive to improve product yield, quality, therefore close
In the past few years quickly grow.
However, existing boiler oxygen-enriched combustion system, is typically necessary and preheats to air, it is therefore desirable to be equipped with special
Preheating device, higher cost.Also, the waste heat of the flue gas of boiler emission is underused, and energy dissipation is caused.The prior art
In also there is a small amount of boiler oxygen-enriched combustion system to be recycled fume afterheat, but device structure is complicated, higher cost.
Utility model content
In view of this, the utility model is directed to a kind of boiler oxygen-enriched combustion system, can make full use of boiler emission
Flue gas in waste heat.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of boiler oxygen-enriched combustion system, comprising:
Boiler；
Exhaust pipe, the exhaust pipe are helix tube, and one end is connected to the exhanst gas outlet of the boiler, the other end and
Flue gas processing device connection；
Be vented pillar, be sheathed on outside the exhaust pipe, it is described exhaust pillar close to the boiler side wall be equipped with
The air inlet of oxygen-enriched combustion aid connection, the exhaust pillar are equipped with gas outlet close to the side wall of the flue gas processing device；
Admission line, one end of the admission line are connected to the gas outlet of the exhaust pillar, the other end and the pot
The burner hearth of furnace is connected；The first blower is equipped in the admission line.
Further, it is equipped with blower in boiler inner top position, and rotation is set to the pot on the blower
The air intake vent of furnace soot blower, the blower is connect with gas supply device, and the boiler soot blower includes that rotation is set to
The Gas inlet tube being connected on the blower and with the blower, and be connected to the Gas inlet tube other end, inside has
The shell of wind chamber is evenly equipped with multiple air-exhausting ducts in the circumferential direction of the shell, the wind chamber respectively with the Gas inlet tube and the row
Air hose connection, the arc-shaped shape of air-exhausting duct and its air outlet is arranged downward along the tangential direction of the boiler side walls, described
Bearing is equipped between Gas inlet tube and the blower.
Further, the exhaust pillar is bent setting along the short transverse of the boiler back and forth, and the exhaust pipe is
Helix tube, and the exhaust pipe is bent with the exhaust pillar curved shape.
Further, the flue gas processing device includes the dust-extraction unit being sequentially communicated with the exhaust pipe, desulfurization dress
It sets and denitrification apparatus.
Further, heat-preservation cotton is coated in the admission line periphery.
Further, oxygen-enriched combustion aid includes sequentially connected second blower, embrane method oxygen generator, vacuum pump, gas-liquid point
From device, dehumidification device and third blower, the air outlet of the third blower is connected with the air inlet of the exhaust pillar.
Further, it is equipped with the first valve in the main line that the dehumidification device is connected to the third blower, in institute
Main line is stated close to the third blower one section is connected with bye-pass, is equipped with the second valve in the bye-pass.
Compared with the existing technology, the beneficial effects of the utility model are as follows:
(1) boiler oxygen-enriched combustion system described in the utility model, exhaust pipe twist, are conducive to be vented in pillar
Gas sufficiently and effectively absorb the waste heat of flue gas in boiler exhaust pipeline, the effectively save energy, and structure is simple occupies empty
Between it is smaller, manufacturing cost is lower, have preferable practicability.
(2) boiler soot blower of the utility model, by changing the direction of outlet air air-flow and making boiler soot blower phase
Blower is rotated, so that boiler soot blower can rotate under the action of the wind, and then realize the blowing of all directions, is improved
Ash-removal effect prevents the long-term dust retention effects normal operation of boiler of boiler inner wall.
(3) exhaust pipe and exhaust pillar are bent setting along the short transverse of boiler back and forth, are making full use of boiler afterheat
While, occupied space can be reduced, reduce volume.
(4) flue gas processing device includes dust-extraction unit, desulfurizer and denitrification apparatus, can by the harmful substance in flue gas into
Row processing, protects environment.
(5) heat-preservation cotton is coated in the periphery of admission line, heat loss can be prevented.
(6) gas outlet of oxygen-enriched combustion aid is connected to the air inlet of exhaust pillar, so that oxygen-enriched combustion aid is available
The waste heat of flue gas in exhaust pipe, so as to save preheater, save the cost and the energy.
(7) the first valve and the second valve are set simultaneously, the gas entered in boiler from admission line can be made both and can be rich
Carrier of oxygen can also be normal air.
Detailed description of the invention
Figure of description is used to provide a further understanding of the present invention, and is not constituted to the improper of the utility model
It limits.In Figure of description:
Fig. 1 is the structural schematic diagram of boiler oxygen-enriched combustion system described in the utility model embodiment；
Fig. 2 is the structural schematic diagram of boiler soot blower described in the utility model embodiment；
Fig. 3 is the top view of Fig. 2；
Description of symbols:
1- boiler, 2- exhaust pipe, 3- are vented pillar, 301- air inlet, the gas outlet 302-, 4- admission line, 5- first
Blower, 6- dust-extraction unit, 7- desulfurizer, 8- denitrification apparatus, the second blower of 9-, 10- embrane method oxygen generator, 11- vacuum pump, 12-
Gas-liquid separator, 13- dehumidification device, 14- third blower, 15- blower, 1601- Gas inlet tube, 1602- shell, 1603- air draft
Pipe, 1604- bearing, 17- main line, the first valve of 18-, 19- bye-pass, the second valve of 20-.
Specific embodiment
Below with reference to the accompanying drawings and embodiment is described in detail the utility model.
The present embodiment is related to a kind of boiler oxygen-enriched combustion system, as shown in Figure 1, mainly including boiler 1, exhaust pipe 2, row
Gas pillar 3 and admission line 4.
Wherein: exhaust pipe 2 is helix tube, and one end is connected to the exhanst gas outlet of boiler 1, the other end and following flue gases
Processing unit connection.
Exhaust pillar 3 is sheathed on outside exhaust pipe 2, exhaust pillar 3 close to the side wall of boiler 1 be equipped with it is following oxygen-enriched
The air inlet 301 of auxiliary combustion equipment connection, exhaust pillar 3 are equipped with gas outlet 302 close to the side wall of flue gas processing device.Specifically
Ground is tightly connected between the both ends and exhaust pipe 2 of exhaust pillar 3, and sealing means can specifically pass through welding end cap or blocking rubber
Stifled mode.In order to easy to assembly, it can will be vented pillar 3 and be divided to be divided into symmetrical two along the plane for crossing its longitudinal center line
Point, rubber pad can be increased on the end face that two parts connect to guarantee sealing effect by flanged joint between two parts.
One end of admission line 4 is connected to the gas outlet 302 of exhaust pillar 3, and the other end is connected with the burner hearth of boiler 1；
It is equipped with the first blower 5 in admission line 4, the gas being vented in pillar 3 can be delivered in the burner hearth of boiler 1.In order to anti-
Only heat loss is coated with heat-preservation cotton in 4 periphery of admission line.
In order to make full use of space, in the present embodiment, pillar 3 is vented along the short transverse of boiler 1 and is bent setting back and forth, row
Feed channel 2 is helix tube, and exhaust pipe 2 is bent with exhaust 3 curved shape of pillar, so occupancy small volume, and also
The waste heat of flue gas can be made full use of.
Flue gas processing device above-mentioned includes the dust-extraction unit 6, desulfurizer 7 and denitration being sequentially communicated with exhaust pipe 2
Flue gas can be carried out purified treatment, effective protection environment by device 8.
Oxygen-enriched combustion aid above-mentioned includes sequentially connected second blower 9, embrane method oxygen generator 10, vacuum pump 11, gas-liquid
The air outlet of separator 12, dehumidification device 13 and third blower 14, third blower 14 is connected with the air inlet 301 of exhaust pillar 3
It is logical.
Herein it should be noted that being equipped with the first valve on the main line 17 that dehumidification device 13 is connected to third blower 14
18, it is connected with bye-pass 19 close to one section of third blower 14 in main line 17, is equipped with the second valve 20 in bye-pass 19,
The gas entered in boiler 1 through admission line 4 can be made both to can be oxygen rich gas, normal air can also be.
For the ease of 1 inside deashing of boiler, blower 15, the inlet air of blower 15 are installed in 1 inner top position of boiler
Mouth and gas supply device such as gas bag or blower connect, and the air outlet of blower 15 is set in boiler 1.It is placed in blower 15
One section of upper rotation in boiler 1 is equipped with boiler soot blower.
On specific structure, as shown in Figures 2 and 3, boiler soot blower include rotation be set to blower 15 on and with blow
The Gas inlet tube 1601 that air hose 15 is connected to, is equipped with bearing 1604 between Gas inlet tube 1601 and blower 15, and bearing 1604 is existing
High temperature resistant bearing, boiler soot blower smooth rotation can be made.Boiler soot blower further includes being connected to Gas inlet tube 1601 separately
One end, the internal shell 1602 with wind chamber, is evenly equipped with multiple air-exhausting ducts 1603, air-exhausting duct 1603 in the circumferential direction of shell 1602
Arc-shaped shape and its air outlet is arranged downward along the tangential direction of 1 side wall of boiler, and wind chamber above-mentioned respectively with Gas inlet tube
1601 are connected to air-exhausting duct 1603.Therefore, the boiler soot blower of the present embodiment can be in the wind for the deashing wind being blown into boiler 1
It is rotated under power effect relative to blower 15, so that the blowing to all directions can be realized, blowing effect is preferable.
The boiler oxygen-enriched combustion system of the present embodiment delivers the air to embrane method oxygen generator 10 by the second blower 9, then makes
Standby gas-liquid mixture first passes through gas-liquid separator 12 and carries out gas-liquid separation, and gas dehumidifies using dehumidification device 13, then exists
Enter exhaust pillar 3 under the action of third blower 14, flue gas in exhaust pipe 2 is absorbed during flowing through exhaust pillar 3
Waste heat, finally under the action of the first blower 5 into boiler 1 burner hearth in, can the effectively save energy, reduce cost, and account for
Smaller with space, structure is simple, has preferable practicability.
For the above specific embodiment, in the absence of conflict, in the embodiments of the present invention and embodiment
Feature can be combined with each other.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (7)
1. a kind of boiler oxygen-enriched combustion system, characterized by comprising:
Boiler (1)；
Exhaust pipe (2), the exhaust pipe (2) are helix tube, and one end is connected to the exhanst gas outlet of the boiler (1), separately
One end is connected to flue gas processing device；
It is vented pillar (3), is sheathed on the exhaust pipe (2) outside, side wall of exhaust pillar (3) close to the boiler (1)
It is equipped with the air inlet (301) connecting with oxygen-enriched combustion aid, exhaust pillar (3) is close to the side of the flue gas processing device
Wall is equipped with gas outlet (302)；
Admission line (4), one end of the admission line (4) is connected to the gas outlet (302) of exhaust pillar (3), another
End is connected with the burner hearth of the boiler (1)；The first blower (5) are equipped in the admission line (4).
2. boiler oxygen-enriched combustion system according to claim 1, it is characterised in that: in the boiler (1) inner top position
It is set to the boiler soot blower on the blower (15) equipped with blower (15), and rotation, blower (15) enter
Air port is connect with gas supply device, the boiler soot blower include rotation be set to the blower (15) on and with it is described
The Gas inlet tube (1601) of blower (15) connection, and the Gas inlet tube (1601) other end, inside are connected to wind chamber
Shell (1602), be evenly equipped with multiple air-exhausting ducts (1603) in the circumferential direction of the shell (1602), the wind chamber respectively with it is described
Gas inlet tube (1601) is connected to the air-exhausting duct (1603), the arc-shaped shape of air-exhausting duct (1603) and its air outlet is along the pot
The tangential direction of furnace (1) side wall is arranged downward, and bearing is equipped between the Gas inlet tube (1601) and the blower (15)
(1604)。
3. boiler oxygen-enriched combustion system according to claim 1, it is characterised in that: the exhaust pillar (3) is along the pot
The short transverse of furnace (1) is bent setting back and forth, and the exhaust pipe (2) is helix tube, and the exhaust pipe (2) is with the row
Gas pillar (3) curved shape and be bent.
4. boiler oxygen-enriched combustion system according to claim 1, it is characterised in that: the flue gas processing device includes and institute
State dust-extraction unit (6), desulfurizer (7) and denitrification apparatus (8) that exhaust pipe (2) is sequentially communicated.
5. boiler oxygen-enriched combustion system according to claim 1, it is characterised in that: wrapped in the admission line (4) periphery
It is covered with heat-preservation cotton.
6. boiler oxygen-enriched combustion system according to any one of claims 1-5, it is characterised in that: the oxygen-enriched combustion-supporting dress
It sets including sequentially connected second blower (9), embrane method oxygen generator (10), vacuum pump (11), gas-liquid separator (12), dehumidification device
(13) it is connected with third blower (14), the air outlet of the third blower (14) with the air inlet (301) of exhaust pillar (3)
It is logical.
7. boiler oxygen-enriched combustion system according to claim 6, it is characterised in that: in the dehumidification device (13) and described
The main line (17) of third blower (14) connection is equipped with the first valve (18), in the main line (17) close to the third wind
One section of machine (14) is connected with bye-pass (19), is equipped with the second valve (20) in the bye-pass (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820798482.3U CN208382215U (en) | 2018-05-25 | 2018-05-25 | Boiler oxygen-enriched combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820798482.3U CN208382215U (en) | 2018-05-25 | 2018-05-25 | Boiler oxygen-enriched combustion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208382215U true CN208382215U (en) | 2019-01-15 |
Family
ID=64968774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820798482.3U Active CN208382215U (en) | 2018-05-25 | 2018-05-25 | Boiler oxygen-enriched combustion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208382215U (en) |
-
2018
- 2018-05-25 CN CN201820798482.3U patent/CN208382215U/en active Active
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