CN207975630U - The low-nitrogen discharged boiler of three backhauls - Google Patents
The low-nitrogen discharged boiler of three backhauls Download PDFInfo
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- CN207975630U CN207975630U CN201721740324.4U CN201721740324U CN207975630U CN 207975630 U CN207975630 U CN 207975630U CN 201721740324 U CN201721740324 U CN 201721740324U CN 207975630 U CN207975630 U CN 207975630U
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- smoke
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- water cooling
- drum
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Abstract
The utility model is related to a kind of low-nitrogen discharged boilers of three backhauls, including drum, burner, condenser, and flue, the first backhaul smoke pipe, the second backhaul smoke pipe, the first turning smoke-box, the second turning smoke-box being arranged in drum, be provided in the burner hearth along burner hearth axis be in divergent shape distribution several water cooling tubes；Third turning smoke-box is provided at rearward position in the drum, the flue gas that longitudinal baffle makes the second backhaul smoke pipe come out is provided in the third turning smoke-box and gets on, get off and flowed, the condenser is mounted on the back cavity of third turning smoke-box.Water cooling tube is added in burner hearth, burner combustion flame directly washes away water cooling tube, and temperature rapid decrease avoids NOxTemperature section is generated, is realized low-nitrogen discharged；It no longer needs individually to be equipped with out of stock module, reduces manufacturing cost；Condenser is placed in drum, and in the back cavity of turning smoke-box, it is compact-sized, it occupies little space.
Description
Technical field
The utility model belongs to vacuum boiler technical field, and in particular to a kind of low-nitrogen discharged boiler of three backhauls.
Background technology
As shown in Figure 1, the burner 2 in 1 front of drum, setting is arranged by drum 1 in the low nitrogen boiler of existing three backhaul
Out of stock module 3, condenser 4 at 1 rear of drum, the burner hearth 5 being arranged in drum 1, the first backhaul smoke pipe 6, the second return smoke
The turning turning smoke-box 9 of smoke-box 8, second of pipe 7, first forms.Burner hearth 5, the first backhaul smoke pipe 6, the second backhaul smoke pipe 7 are in drum 1
Inside set gradually from down to up.The flow of flue gas route that burner 2 generates is the turning of burner hearth 5, first smoke-box 8, the first return smoke
The turning of pipe 6, second smoke-box 9, the second backhaul smoke pipe 7, out of stock module 3, condenser 4, are finally discharged into air, such as arrow in Fig. 1
Shown in head.
Main problem is existing for the structure：The temperature of boiler combustion is usually at 2000 DEG C or more, and ignition temperature is once
The NO then generated higher than 1500 DEG CxContent is more, needs individually to be equipped with the out of stock processing of out of stock module progress, to reduce discharge flue gas
In nitrogen content, and manufacturing cost is high；Out of stock module and condenser are located at outside drum, and occupied space is big, is not easy to install.
Utility model content
The utility model is intended to reduce the manufacturing cost of the low nitrogen boiler of three backhauls, reduces occupied space, and reduce discharge cigarette
Nitrogen content in gas.
For this purpose, technical solution used by the utility model is：A kind of low-nitrogen discharged boiler of three backhauls, including drum, combustion
Burner, condenser, and be arranged in drum burner hearth, the first backhaul smoke pipe, the second backhaul smoke pipe, the first turning smoke-box, the
Two turning smoke-boxes, be provided in the burner hearth along burner hearth axis be in divergent shape distribution several water cooling tubes；It is leaned in the drum
Third turning smoke-box is provided at rearward position, being provided with longitudinal baffle in the third turning smoke-box makes the second backhaul smoke pipe go out
The flue gas come, which gets on, get off, to be flowed, and the condenser is mounted on the back cavity of third turning smoke-box.
The water cooling tube is formed using steel pipe bending as a preferred embodiment of the above solution, and the rear and front end of water cooling tube is solid respectively
It is scheduled on inboard wall of burner hearth, the axis of middle part opposite end towards the water cooling tube of water cooling tube is gradually drawn close, and all water cooling tubes are evenly distributed with and phase
There are gaps between mutually.The structure and arrangement for optimizing water cooling tube, keep flame impingement water cooling tube more uniform, cooling-down effect
More preferably.
Further, the smoke outlet communicated with the external world is provided at the top of the condenser, the bottom of third turning smoke-box is set
Be equipped with " L " type drainpipe for communicating of the external world, and it is minimum at the position that is connected with " L " type drainpipe of third turning smoke-box bottom,
Occupied space is further saved, and condensed water is avoided to deposit.
Further, the rear of the second turning smoke-box is provided with channel used for overhaul, facilitates personnel from drum
Rear passes in and out, and is overhauled to burner hearth.
The utility model has the beneficial effects that：Water cooling tube is added in burner hearth, burner combustion flame directly washes away water cooling
Pipe, temperature rapid decrease avoid NOxTemperature section is generated, is realized low-nitrogen discharged；It no longer needs individually to be equipped with out of stock module,
Reduce manufacturing cost；Condenser is placed in drum, and in the back cavity of turning smoke-box, it is compact-sized, it occupies little space.
Description of the drawings
Fig. 1 is the structural schematic diagram before improving.
Fig. 2 is improved structural schematic diagram.
Fig. 3 is the A direction views of Fig. 2.
Specific implementation mode
By way of example and in conjunction with the accompanying drawings, the utility model is described in further detail：
In conjunction with shown in Fig. 2, Fig. 3, the low-nitrogen discharged boiler of a kind of three backhauls, by drum 1, burner 2, water cooling tube 3, condenser
4, burner hearth 5, the first backhaul smoke pipe 6, the second backhaul smoke pipe 7, first turning turning of smoke-box 8, second smoke-box 9, third turning smoke-box
10, longitudinal baffle 11, smoke outlet 12, " L " type drainpipe 13, channel 14 form.
Burner 2 is arranged in the front of drum 1.Condenser 4, burner hearth 5, the first backhaul smoke pipe 6, the second backhaul smoke pipe 7,
One turning smoke-box 8, second turns smoke-box 9, third turning smoke-box 10, the setting of longitudinal baffle 11 in drum 1.Burner hearth 5, first times
Journey smoke pipe 6, the second backhaul smoke pipe 7 are set gradually from down to up.
Several water cooling tubes 3 in divergent shape distribution along 5 axis of burner hearth are provided in burner hearth 5.Preferably, water cooling tube 3 uses
Steel pipe bending forms, and the rear and front end of water cooling tube 3 is separately fixed on 5 inner wall of burner hearth, and the middle part opposite end of water cooling tube 3 is towards water
The axis of cold pipe 3 is gradually drawn close, and there are gaps in all water cooling tubes 3 are uniformly distributed and mutual.
Third turning smoke-box 10 is provided in drum 1 at rearward position, be provided in third turning smoke-box 10 it is longitudinal every
The flue gas that plate 11 makes the second backhaul smoke pipe 7 come out, which gets on, get off, to be flowed, after condenser 4 is mounted on third turning smoke-box 10
Chamber.
Preferably, the top of condenser 4 is provided with the smoke outlet 12 communicated with the external world, for discharging condensed flue gas；
The bottom of third turning smoke-box 10 is provided with " L " the type drainpipe 13 communicated with the external world, and third turning 10 bottom of smoke-box and " L "
It is minimum at the connected position of type drainpipe 13, facilitate discharge condensed water.
In addition, the rear of the second turning smoke-box 9 is provided with channel 14 used for overhaul.
Burner 2 generate flow of flue gas route it is as shown by arrows in figure, be followed successively by burner hearth 5 → the first turn smoke-box 8 →
First backhaul smoke pipe 6 → the second turning 9 → the second backhaul 7 → third of smoke pipe of smoke-box turning smoke-box 10, condensed device 4 are condensed
Flue gas is discharged into from smoke outlet 12 in air, and the condensed water formed in condensation process is discharged through " L " type drainpipe 13.
Claims (4)
1. a kind of low-nitrogen discharged boiler of three backhauls, including drum (1), burner (2), condenser (4), and be arranged in drum
(1) burner hearth (5), the first backhaul smoke pipe (6), the second backhaul smoke pipe (7), the first turning smoke-box (8), the second turning smoke-box in
(9), it is characterised in that：Several water cooling tubes (3) in divergent shape distribution along burner hearth (5) axis are provided in the burner hearth (5)；
Third turning smoke-box (10) is provided in the drum (1) at rearward position, is provided in the third turning smoke-box (10)
The flue gas that longitudinal baffle (11) makes the second backhaul smoke pipe (7) come out gets on, get off and is flowed, and the condenser (4) is mounted on the
The back cavity of three turning smoke-boxes (10).
2. the low-nitrogen discharged boiler of three backhauls according to claim 1, it is characterised in that：The water cooling tube (3) uses steel pipe
Bending forms, and the rear and front end of water cooling tube (3) is separately fixed on burner hearth (5) inner wall, the middle part opposite end court of water cooling tube (3)
The axis of water cooling tube (3) is gradually drawn close, and there are gaps in all water cooling tubes (3) are uniformly distributed and mutual.
3. the low-nitrogen discharged boiler of three backhauls according to claim 1 or 2, it is characterised in that：The top of the condenser (4)
It is provided with the smoke outlet (12) communicated with the external world, the bottom of third turning smoke-box (10) is provided with " L " type communicated with the external world and arranges
Water pipe (13), and it is minimum at the position that is connected with " L " type drainpipe (13) of third turning smoke-box (10) bottom.
4. the low-nitrogen discharged boiler of three backhauls according to claim 3, it is characterised in that：The second turning smoke-box (9)
Rear is provided with channel used for overhaul (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740324.4U CN207975630U (en) | 2017-12-14 | 2017-12-14 | The low-nitrogen discharged boiler of three backhauls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740324.4U CN207975630U (en) | 2017-12-14 | 2017-12-14 | The low-nitrogen discharged boiler of three backhauls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207975630U true CN207975630U (en) | 2018-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721740324.4U Active CN207975630U (en) | 2017-12-14 | 2017-12-14 | The low-nitrogen discharged boiler of three backhauls |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021031435A1 (en) * | 2019-08-21 | 2021-02-25 | 浙江力聚热水机有限公司 | Ultra-low nitrogen gas steam boiler |
-
2017
- 2017-12-14 CN CN201721740324.4U patent/CN207975630U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021031435A1 (en) * | 2019-08-21 | 2021-02-25 | 浙江力聚热水机有限公司 | Ultra-low nitrogen gas steam boiler |
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