CN207112784U - Ultralow nitrogen discharged hot-water boiler - Google Patents
Ultralow nitrogen discharged hot-water boiler Download PDFInfo
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- CN207112784U CN207112784U CN201720856974.9U CN201720856974U CN207112784U CN 207112784 U CN207112784 U CN 207112784U CN 201720856974 U CN201720856974 U CN 201720856974U CN 207112784 U CN207112784 U CN 207112784U
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- boiler
- smoke box
- burner
- water
- flue gas
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Abstract
The utility model discloses a kind of hot-water boiler, particularly ultralow nitrogen discharged hot-water boiler.The utility model includes boiler body, the boiler body includes burner, front smoke box, rear smoke box, convection current beam tube, spray gas engine, boiler feed water mouth and boiler delivery port, the burner is lying in lower section in boiler body, the entrance for spraying gas engine and burner connects, the front smoke box and rear smoke box are separately positioned on the both ends of burner, burner is sequentially connected with front smoke box and rear smoke box, in addition to flue-gas treater by convection current beam tube.The utility model thermal efficiency is high, thoroughly vapor latent heat utilization caused by burning gets up, nitrogen discharged rate is ultralow, compact overall structure, economization metal consumption.
Description
Technical field
A kind of hot-water boiler is the utility model is related to, particularly ultralow nitrogen discharged hot-water boiler.
Background technology
Existing natural gas hot water's Boiler smoke tube arrangement is not compact, and equipment volume is big, and metal consumption is more, and flue size is less than normal,
The size requirement of ultralow nitrogen discharged combustor is not suitable with, for water-in and water-out interface all above body, equipment thermal efficiency is low, easily makes
Into cold water and hot water short circuit, boiler water cycle is bad, and tube sheet crosses Thermal cracking.Therefore to solve this problem, many people come up with
It is low-nitrogen discharged so as to realize by flue gas recirculation, and increase the thermal efficiency, it is simple by flue gas recirculation, although enabling to
Boiler flame temperature reduces, so that thermal NO growing amount is reduced, but due to non-thermal NO (such as
Nitrogen dioxide) it will not be reacted in burning, therefore even if air can still be polluted by being discharged after circulation.
Utility model content
The purpose of this utility model is：In view of the above-mentioned problems, the utility model, which provides one kind, can realize thermal efficiency height
Ultralow nitrogen discharged hot-water boiler.
The technical solution adopted in the utility model is as follows：
Ultralow nitrogen discharged hot-water boiler, including boiler body, the boiler body include burner, front smoke box, rear smoke box,
Convection current beam tube, spray gas engine, boiler feed water mouth and boiler delivery port, the burner are lying in lower section in boiler body, and institute
The entrance that burner is stated with the spray gas engine be connected, and the front smoke box and rear smoke box are separately positioned on the both ends of burner, fire
Burner is sequentially connected with front smoke box and rear smoke box, in addition to flue-gas treater by convection current beam tube, the flue-gas treater include from
The chimney that is up to sequentially connected down, flue gas fork, collection gas-bearing formation and acquisition layer, de-watering apparatus, cigarette are provided with the flue gas fork
Gas fork is connected by flue gas recirculation pipe with spray gas engine, and the acquisition layer is connected by fume pipe with rear smoke box, acquisition layer
It is provided with and throws alkali entrance, acquisition layer connects boiler delivery port by water pipe, and acquisition layer is connected with water treatment facilities by water pipe.
Preferably, the burner is major diameter long-wave-shaped combining structure.
Preferably, the boiler feed water mouth is arranged on the upper end of boiler body, and the boiler delivery port is arranged on boiler sheet
The lower end of body.
Preferably, it is provided with pipeline valve instrument at the boiler feed water mouth.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：
A kind of ultralow nitrogen discharged hot-water boiler in the utility model, the thermal efficiency is high, thoroughly will vapor caused by burning
Latent heat utilization gets up, and nitrogen discharged rate is ultralow, compact overall structure, economization metal consumption.
Brief description of the drawings
Fig. 1 is the utility model structure chart；
Marked in figure：1- boiler bodies；2- burners；3- front smoke boxs；Smoke box after 4-；5- boiler feed water mouths；6- boilers go out
The mouth of a river；7- pipeline valve instrument；8- throws alkali entrance；9- convection current beam tubes；10- fume pipes；11- flue-gas treaters；12- collection gas-bearing formations；
13- acquisition layers；14- flue gases fork；15- flue gas recirculation pipes；16- water treatment facilities；17- chimneys；18- sprays gas engine.
Embodiment
All features disclosed in this specification, can be with any in addition to mutually exclusive feature and/or step
Mode combines.
Embodiment one
The present embodiment is as shown in figure 1, ultralow nitrogen discharged hot-water boiler, including boiler body 1, the boiler body 1 include
Burner 2, front smoke box 3, rear smoke box 4, convection current beam tube 9, spray gas engine 18, boiler feed water mouth 5 and boiler delivery port 6, the combustion
Burner 2 is lying in lower section in boiler body 1, and the burner 2 is connected with the entrance of the spray gas engine 18, convection current beam tube 9
The top of burner 2 is arranged on, the front smoke box 3 and rear smoke box 4 are separately positioned on the both ends of burner 2, and burner 2 is by right
A fluid stream pipe 9 is sequentially connected with front smoke box 3 and rear smoke box 4, in addition to flue-gas treater 11, and the flue-gas treater 11 is included from up to
Under the chimney 17, flue gas fork 14, the collection gas-bearing formation 12 and acquisition layer 13 that are sequentially connected, be provided with water removal dress in the flue gas fork 14
Put, flue gas fork 14 is connected by flue gas recirculation pipe 15 with spray gas engine 18, and the acquisition layer 13 is by fume pipe 10 with after
Smoke box 4 is connected, and acquisition layer 13, which is provided with, throws alkali entrance 8, and acquisition layer 13 connects boiler delivery port 6 by water pipe, and acquisition layer 13 is logical
Cross water pipe and be connected with water treatment facilities 16.
In use, the flue gas that water is entered in boiler body 1, with convection current beam tube 9 by boiler feed water mouth 5 is changed
Heat, after from boiler delivery port 6 by water pipe enter flue-gas treater 11 acquisition layer 13, while operating personnel from throw alkali entrance 8
Input alkali make it that the water in acquisition layer 13 is alkalescence, and natural gas is entered by spraying the burner 2 that gas engine 18 enters in boiler body 1
Row burning, then generates the flue gas being made up of carbon dioxide, vapor, nitrogen oxides etc., flue gas by convection current beam tube 9 successively
By front smoke box 3 and rear smoke box 4, the revolution in boiler body 1 is realized, then enters flue-gas treater 11 from rear smoke box 4
Acquisition layer 13, now flue gas to be cleaned one time by alkaline water in the acquisition layer 13, remove the vapor being rich in flue gas, a part
Nitrogen dioxide and sour gas, then enter flue gas fork 14 by collecting gas-bearing formation 12, by water removal after part of smoke pass through
Flue gas recirculation pipe 15 comes back to spray gas engine 18 and recycled, and another part flue gas is then discharged by chimney 17, alkalescence
Water obtained after scrubbing flue gas it is certain in and, water treatment facilities 16 is then come by water pipe and carries out treatment and purification.
Flue gas and water are carried out secondary heat exchange by the device, are for the first time heat convection inside and outside the pipe in boiler body 1, and second
It is secondary, it is that directly flue gas is passed through in water in flue-gas treater 11 so that flue gas no longer has the temperature difference with water, thoroughly produces burning
Raw vapor latent heat utilization gets up；Flue gas after burning contains nitrogen oxides, and it is mainly heating power type nitric oxide and dioxy
Change nitrogen, then nitric oxide is mutually changed with nitrogen dioxide, and each content keeps balance, after flue gas is passed through into buck, dioxy for its
Change nitrogen to be absorbed by buck so that balance is broken, and part nitric oxide is converted to nitrogen dioxide, reduces nitric oxide production contain
Amount；For flue gas after processing after water removal, a part returns to spray gas engine 18 by flue gas recirculation pipe 15, natural with new-comer
Gas mixes, and flue gas is not involved in burning in itself, on the one hand can reduce oxygen content, on the other hand can be by the burning in burner 2
Temperature is necessarily neutralized so that flame temperature reduces, so as to reduce the nitric oxide production generation of heating power type；By burner 2 and change
The convection current beam tube 9 of heat is arranged in boiler body 1 so that boiler structure is compact, economization metal consumption；Flue gas fork 14 is set
De-watering apparatus, prevent flue gas with water from being impacted to burning.
Embodiment two
The present embodiment is further improved based on embodiment 1, as shown in figure 1, the burner 2 is major diameter long-wave-shaped group
Close structure.
In use, major diameter long-wave-shaped combination flue is set, wall is wavy shaped configuration, expands heat exchange area,
And adapt to the size requirement of ultralow nitrogen discharged combustor.
Embodiment three
The present embodiment is based on any one of embodiment 1-2 and is further improved, as shown in figure 1, the boiler feed water mouth 5
The upper end of boiler body 1 is arranged on, the boiler delivery port 6 is arranged on the lower end of boiler body 1.
In use, boiler feed water mouth 5 is located at the top of boiler body 1, and boiler delivery port 6 is located under boiler body 1
Side, strengthen water circulation in stove, prevent cold water from crossing Thermal cracking with hot water short circuit and tube sheet.
Example IV
The present embodiment is based on any one of embodiment 1-3 and is further improved, as shown in figure 1, the boiler feed water mouth 5
Place is provided with pipeline valve instrument 7.
In use, pipeline valve instrument 7 is set so that the hydraulic pressure in boiler body 1 will not be excessive, so as to cause
Equipment damage.
It is embodiment of the present utility model as described above.The utility model is not limited to above-mentioned embodiment, anyone
The structure change made under enlightenment of the present utility model should be learnt, it is every that there is same or like skill with the utility model
Art scheme, each falls within the scope of protection of the utility model.
Claims (3)
1. ultralow nitrogen discharged hot-water boiler, including boiler body (1), the boiler body (1) includes burner (2), front smoke box
(3), rear smoke box (4), convection current beam tube (9), spray gas engine (18), boiler feed water mouth (5) and boiler delivery port (6), the burning
Device (2) is lying in lower section in boiler body (1), and the burner (2) is connected with the entrance of the spray gas engine (18), convection current
Beam tube (9) is arranged on the top of burner (2), and the front smoke box (3) and rear smoke box (4) are separately positioned on the two of burner (2)
End, burner (2) are sequentially connected with front smoke box (3) and rear smoke box (4) by convection current beam tube (9), it is characterised in that：Also include flue gas
Processor (11), the flue-gas treater (11) include chimney (17), flue gas fork (14), the gas collection being sequentially connected from top to bottom
Layer (12) and acquisition layer (13), the flue gas fork (14) is interior to be provided with de-watering apparatus, and flue gas fork (14) are followed again by flue gas
Endless tube (15) is connected with spray gas engine (18), and the acquisition layer (13) is connected by fume pipe (10) with rear smoke box (4), acquisition layer
(13) it is provided with and throws alkali entrance (8), acquisition layer (13) connects boiler delivery port (6) by water pipe, and acquisition layer (13) passes through water pipe
It is connected with water treatment facilities (16).
2. ultralow nitrogen discharged hot-water boiler according to claim 1, it is characterised in that：The boiler feed water mouth (5) is set
In the upper end of boiler body (1), the boiler delivery port (6) is arranged on the lower end of boiler body (1).
3. ultralow nitrogen discharged hot-water boiler according to claim 1, it is characterised in that：Boiler feed water mouth (5) place is set
It is equipped with pipeline valve instrument (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720856974.9U CN207112784U (en) | 2017-07-14 | 2017-07-14 | Ultralow nitrogen discharged hot-water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720856974.9U CN207112784U (en) | 2017-07-14 | 2017-07-14 | Ultralow nitrogen discharged hot-water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207112784U true CN207112784U (en) | 2018-03-16 |
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ID=61584073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720856974.9U Active CN207112784U (en) | 2017-07-14 | 2017-07-14 | Ultralow nitrogen discharged hot-water boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207112784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111578275A (en) * | 2020-04-03 | 2020-08-25 | 乐清市亿得利燃烧器有限公司 | Combustor with low emission of nitrogen oxides |
-
2017
- 2017-07-14 CN CN201720856974.9U patent/CN207112784U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111578275A (en) * | 2020-04-03 | 2020-08-25 | 乐清市亿得利燃烧器有限公司 | Combustor with low emission of nitrogen oxides |
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