CN209415417U - A kind of novel steam boiler flue - Google Patents
A kind of novel steam boiler flue Download PDFInfo
- Publication number
- CN209415417U CN209415417U CN201822175800.3U CN201822175800U CN209415417U CN 209415417 U CN209415417 U CN 209415417U CN 201822175800 U CN201822175800 U CN 201822175800U CN 209415417 U CN209415417 U CN 209415417U
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- China
- Prior art keywords
- flue
- liner
- olive shape
- boiler
- corrugated flue
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Abstract
The utility model provides a kind of novel steam boiler flue, including corrugated flue, an olive shape liner is provided in the corrugated flue, corrugated flue periphery is provided with water chamber, the olive shape liner passes through tedge with water chamber respectively, horizontal communicating pipe, down-comer are connected, tedge, horizontal communicating pipe and down-comer pass through corrugated flue and liner and are attached thereto logical, and olive shape liner whole design shape is in olive shape, and front end rear end is designed to round and smooth oval structure；The utility model make fuel be able to achieve during burn application in boiler with combined burner implement stage by stage burn and thorough second-time burning can be gone on smoothly, increase boiler effective heat exchange area increase boiler production capacity, reduce nitrogen oxides generation.
Description
Technical field
The utility model relates to boiler technology fields, and in particular to a kind of novel steam boiler flue.
Background technique
Steam boiler is thermal energy application conversion equipment relatively conventional in many modern industrial and agricultural productions.In its operational process
In, the flue gas generated when burning in boiler for certain fuel may contain such as sulfur dioxide, carbon monoxide, nitrogen oxides
Harmful substance.These harmful substances cause seriously to pollute to environment, or even endanger the normal existence of animals and plants.Therefore, Ren Menxian
Paid attention to energy-saving and emission-reduction problem is mentioned unprecedented height, and this strategy is sustainable as society's implementation
One of important measures of development.How to inhibit and reduce harmful substances from flue gases, so that flue gas environment protection standard is discharged, become
One big project of our pay attention to day by day.Wherein, nitrogen oxides is in fuel combustion process, and nitrogen is by oxygen in local high-temperature area
A kind of pernicious gas changed and generated is improved by the important component structure of boiler, then reasonable to fuel progress with combined burner
Burning, can not only reduce the waste of the energy, can also reduce harmful substance NO_x formation probability, to promote boiler section
The performance of energy environmental protection.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of novel steam boiler flue, to solve background skill
Technical problem in art.
To achieve the above objectives, the present invention adopts the following technical solutions:
A kind of novel steam boiler flue, comprising: corrugated flue is provided with an olive shape liner, wave in the corrugated flue
It is provided with water chamber around shape flue, the olive shape liner passes through tedge with water chamber respectively, horizontal communicating pipe, down-comer are connected
Logical, tedge, horizontal communicating pipe and down-comer pass through corrugated flue and liner and are attached thereto logical, olive shape liner whole design shape
Shape is in olive shape, and front end rear end is designed to round and smooth oval structure.
A kind of beneficial effect of novel steam boiler flue provided by the utility model is:
1) increase by a liner in traditional boiler furnace flue, increase effectively the heat exchange area of boiler；
2) tedge is provided between liner and water chamber, it is ensured that the liquid water of liner is by can smoothly escape into vapour when thermal evaporation
Room avoids liner from forming vapour chamber and burnt；
3) horizontal communicating pipe and down-comer are provided between liner and water chamber, it is ensured that the liquid water of liner is by after the thermal evaporation of part
It is timely supplemented and fills up liner；
4) the whole oval round and smooth structure of liner conducive to the water conservancy diversion to flame and reduces the flow resistance of thermal-flame,
Quick heat exchange is carried out conducive to flame and water, improves boiler efficiency；
5) the whole oval round and smooth structure of liner keeps flame and swirl flow wind sufficiently mixed conducive to the water conservancy diversion to flame
It closes, is conducive to carry out thorough second-time burning and after-flame；
6) liner front end portion directly contacts the high-temperature region of flame kernel, obtains thermal-flame rapidly by the heat absorption of water
Cooling, reduces the generation of thermal NO.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the cross-sectional view of the utility model；
Fig. 3 is the utility model application schematic diagram.
In figure: 1, air blower；2, burner；3, secondary air chamber；4, front smoke chamber；5, secondary air fan；6, front tube sheet；7, secondary
Air port；8, steam chest；9, smoke pipe；10, corrugated flue；11, main casing；12, tedge；13, horizontal communicating pipe；14, down-comer；
15, back tube sheet；16, olive shape liner；17, water chamber；18, outlet flue；19, return combustion chamber；20, venting；21, flame-observing hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clear, complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Ordinary people in the field's every other embodiment obtained without making creative work, belongs to
The protection scope of the utility model.
A kind of embodiment: novel steam boiler flue.
A kind of novel steam boiler flue, as follows in practical applications: including main casing 11, bottom in the main casing 11
It is provided with corrugated flue 10, an olive shape liner 16 is provided in the corrugated flue 10, is additionally provided with water around corrugated flue 10
Room 17, the olive shape liner 16 are connected by tedge 12, horizontal communicating pipe 13, down-comer 14 respectively with water chamber 17, main casing
11 inner top of body is provided with steam chest 8, and 10 side of corrugated flue is provided with port, is connected with burner 2 on the outside of the port；
The corrugated flue 10 is provided with return combustion chamber 19 far from port side；Smoke pipe 9 is provided with above the corrugated flue 10, it is described
Smoke pipe 9 is provided with front smoke chamber 4 close to port side, and smoke pipe 9 is provided with outlet flue 18 far from port side；The steam chest 8
Two sides are respectively arranged with front tube sheet 6 and back tube sheet 15；Venting is provided on the outside of the main casing 11 and below outlet flue 18
20 and flame-observing hole 21.
In the above-mentioned technical solutions, secondary air chamber 3 is provided on the outside of boiler combustion mouth, in the circumferential connection two of port
Secondary air compartment 3 is provided with the overfiren air port 7 that corrugated flue 10 is stretched in several inclinations, when being blown into corrugated flue 10 in favor of Secondary Air
Form Whirl deposite tank, and then sufficiently disturb flame and rotate mixing forward and carry out the burning of two-stage, in guarantee flame it is flammable at
Part is by abundant after-flame.
An olive shape liner 16, olive shape liner 16 and water chamber 17 is designed in corrugated flue 10 to connect by tedge 12, level
Siphunculus 13, down-comer 14 are connected.It will be escaped up and be escaped into vapour by tedge 12 after the heated vaporization of water in olive shape liner 16
Room 8, while the water of liquid is then filled into rapidly by horizontal communicating pipe 13, down-comer 14, it is ensured that whenever olive shape liner 16 all fills
Full water and unlikely burnt by high temperature.The first half of olive shape liner 16 is contacted with the central high temperature area of flame, on the one hand, directly into
Row accelerates the vaporization of the part water, and increases the thermal efficiency that heat exchange area improves boiler, on the other hand,
The localized hyperthermia of flame kernel is quickly reduced, and the generation of thermal NO is reduced.
Due to the special construction burner hearth constituted between corrugated flue 10 and olive shape liner 16 and overfiren air port 7, have significantly
It is burnt stage by stage conducive to combined burner 2 to fuel, the environmental-protecting performance of boiler is substantially improved.When burning, air blower 1 can be with
The 60%-80% air for supplying fuel theory required air quantity carries out oxygen debt fuel-rich combustion, and fuel is oxygen debt to burn and by sweat
Out or the combustible component of cracking enters after burner hearth along the front end of olive shape liner 16 to surrounding diffusion, is filled by the disturbance of rotation Secondary Air
Divide and is mixed and burned simultaneously after-flame with Secondary Air.The temperature that this combustion system can control flame avoids part in reasonable range
Temperature is excessively high, and reacts generation nitrogen oxides in the close phase combustion zone of oxygen debt fuel-rich almost without extra oxygen.According to
Research, the excess air coefficient in emulsion zone is smaller, inhibits the generation effect of NOx better, but imperfect combustion product is more,
Efficiency of combustion is caused to reduce.And imperfect combustion product will be sent by secondary air chamber 3 and overfiren air port 7 by secondary air fan 5
The combustion-supporting after-flame of enough air, it is ensured that fuel source makes full use of.
The above be the utility model preferred embodiment, but the utility model should not be limited to the embodiment and
Attached drawing disclosure of that is all fallen so all do not depart from the lower equivalent or modification completed of spirit disclosed in the utility model
Enter the range of the utility model protection.
Claims (1)
1. a kind of novel steam boiler flue characterized by comprising corrugated flue is provided with an olive in the corrugated flue
Shape liner, corrugated flue periphery are provided with water chamber, the olive shape liner and water chamber pass through respectively tedge, horizontal communicating pipe, under
Drop pipe is connected, and tedge, horizontal communicating pipe and down-comer pass through corrugated flue and liner and be attached thereto logical, and olive shape liner is whole
Body design shape is in olive shape, and front end rear end is designed to round and smooth oval structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822175800.3U CN209415417U (en) | 2018-12-24 | 2018-12-24 | A kind of novel steam boiler flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822175800.3U CN209415417U (en) | 2018-12-24 | 2018-12-24 | A kind of novel steam boiler flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209415417U true CN209415417U (en) | 2019-09-20 |
Family
ID=67940012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822175800.3U Active CN209415417U (en) | 2018-12-24 | 2018-12-24 | A kind of novel steam boiler flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209415417U (en) |
-
2018
- 2018-12-24 CN CN201822175800.3U patent/CN209415417U/en active Active
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