CN206161273U - Experimental device for air classification flows in surveing stove - Google Patents
Experimental device for air classification flows in surveing stove Download PDFInfo
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- CN206161273U CN206161273U CN201621192320.2U CN201621192320U CN206161273U CN 206161273 U CN206161273 U CN 206161273U CN 201621192320 U CN201621192320 U CN 201621192320U CN 206161273 U CN206161273 U CN 206161273U
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Abstract
The utility model discloses an experimental device for air classification flows in surveing stove belongs to buggy furnace combustion and flows dynamic testing volume technical field. Include the four corners circle of contact stove of making by organic glass, be equipped with the wind unit one time in its bottom, be equipped with overgrate air unit and after -flame wind unit respectively in its middle part both sides, be equipped with the tachymeter that is used for measuring a wind size in the wind unit, be equipped with the flowmeter I who is used for measuring after -flame wind wind speed in the after -flame wind unit, be equipped with the flowmeter II who is used for measuring the overgrate air wind speed in the overgrate air unit. This experimental apparatus reliable and simple, low cost, it is visual strong, gained cold state air classification 's the visual result in flow field to a simulation research for instructing hot combustion processes.
Description
Technical field
This utility model belongs to burning flow measurement technical field in coal-powder boiler, and in particular to one kind observation furnace air point
The experimental provision of level flowing.
Background technology
Burning in metallurgical and power domain extensive application, in view of quadrangle tangential circle coal-powder boiler ignition temperature be evenly distributed and
Advantage with good air dynamic behaviour, the main stove that this kind of type of furnace has been adopted as power station and heating boiler
Type.Air classification technology is a kind of preferable low NOx emission-reduction technology, is progressively adopted by station boiler.Cut corner
Researched of Air Staging Combustion Burning Pulverized Coal process in circle coal-powder boiler belongs to the process that complicated turbulent flowing and combustion chemistry reaction intercouple, mainly
Research method is the method using experimental observation in combination with numerical simulation, and factory, actual fortune are come from experimental observations more
The measurement of velocity field, temperature field and concentration field can be limited by test condition again in stove in row, and with time-consuming and work
The big shortcoming of amount.
Rarely has the experimental provision of research quadrangle tangential circle furnace air classification flowing in laboratory at present, in order to launch correlative measurement
Amount, it is necessary to propose a kind of experimental provision that can observe air classification flowing in quadrangle tangential circle coal-powder boiler.
Utility model content
The purpose of this utility model is to provide a kind of experimental provision of observation furnace air classification flowing, the apparatus structure
Reasonable in design, visualization is strong, can solve the problem that high and operating difficultiess the problem of existing combustion experiment research cost.
This utility model is to be achieved through the following technical solutions：
A kind of experimental provision of observation furnace air classification flowing, including the quadrangle tangential circle stove by made by lucite,
Its bottom is provided with First air unit, secondary wind unit and burnout degree unit is respectively provided on two sides with the middle, in First air unit
It is provided with the tachymeter for measuring First air size；It is provided with the effusion meter I for measuring burnout degree wind speed in burnout degree unit, two
The effusion meter II for measuring secondary wind wind speed is provided with secondary wind unit.
First air unit includes primary air fan and coupled First air adapter, and First air adapter is connected with feed pipe,
Two branch roads are stretched out in First air adapter, is all the way primary air piping I, another road is primary air piping II, primary air piping I is connected to and sets
Put at the primary air nozzle I on quadrangle tangential circle stove, primary air piping II is connected to the primary air nozzle II being arranged on quadrangle tangential circle stove；
Primary air piping I is provided with an air-valve I, and primary air piping II is provided with an air-valve II.
Tachymeter is arranged on the pipeline of First air adapter.
Inlet valve is additionally provided with feed pipe.
Secondary wind unit include overfire air fan and with the secondary wind adapter I and secondary wind adapter II that respectively it is connected；
Two branch roads are stretched out on secondary wind adapter I, are all the way secondary air channel I, another road be secondary air channel II, secondary air channel
I is connected at the overfiren air port I being arranged on quadrangle tangential circle stove, and secondary air channel II is connected to two be arranged on quadrangle tangential circle stove
Secondary air port II；Secondary air channel I is provided with secondary air-valve I, and secondary air channel II is provided with secondary air-valve II；
Two branch roads are stretched out on secondary wind adapter II, is all the way secondary air channel III, another road is secondary air channel IV, secondary
Airduct III is connected to the overfiren air port III being arranged on quadrangle tangential circle stove, and secondary air channel IV is connected to and is arranged on quadrangle tangential circle stove
On overfiren air port IV；Secondary air channel III is provided with secondary air-valve III, and secondary air channel IV is provided with secondary air-valve IV.
Effusion meter II is arranged on the pipeline of secondary wind adapter I.
Burnout degree unit includes burnout degree blower fan and coupled burnout degree adapter, and in burnout degree adapter four are stretched out
Road, respectively after-flame airduct I, after-flame airduct II, after-flame airduct III and after-flame airduct IV；
After-flame airduct I is connected at the after-flame air port I being arranged on quadrangle tangential circle stove, and after-flame airduct II is connected to and is arranged on
At after-flame air port II on quadrangle tangential circle stove, after-flame airduct III is connected to the after-flame air port III being arranged on quadrangle tangential circle stove
Place, after-flame airduct IV is connected at the after-flame air port IV being arranged on quadrangle tangential circle stove；
After-flame airduct I is provided with after-flame air-valve I, and after-flame airduct II is provided with after-flame air-valve II, and after-flame airduct III is provided with
After-flame air-valve III, after-flame airduct IV is provided with after-flame air-valve IV.
Effusion meter I is arranged on the pipeline of burnout degree adapter.
Compared with prior art, this utility model has following beneficial technique effect：
The experimental provision of the disclosed observation furnace air classification flowing of this utility model, including using lucite processing
Into quadrangle tangential circle stove, be provided with First air unit in its bottom, secondary wind unit and burnout degree are respectively provided on two sides with the middle
Unit, wherein primary air nozzle spray into coal dust, and overfiren air port and after-flame air port spray into air, by adjusting First air, secondary wind and
After-flame air quantity can be observed the quadrangle tangential circle fluid field in furnace distribution under different air classifications.The experimental provision is simple, cost
Cheap, visualization is strong, the flow-field visualized result of the cold conditions air classification for being obtained, so as to be used for instructing heat state combustion process
Simulation study.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein：1. quadrangle tangential circle stove；2. after-flame air port I；3. after-flame air port II；4. after-flame air-valve I；5. after-flame air-valve II；
6. after-flame airduct I；7. after-flame airduct II；8. burnout degree adapter；9. effusion meter I；10. after-flame blower fan；11. secondary air channel I；12.
Secondary air channel II；13. effusion meter II；14. secondary wind adapter I；15. overfire air fans；16. primary air nozzle I；17. primary air nozzle II；
18. primary air piping I；A No. 19. air-valve I；20. tachymeters；A No. 21. air-valve II；22. primary air piping II；23. First airs connect
Pipe；24. primary air fans；25. inlet valves；26. feed pipes；27. secondary wind adapter II；28. secondary air channel III；29. secondary air channels
IV；No. 30. 2 air-valve III；No. 31. 2 air-valve IV；32. after-flame airduct III；33. after-flame airduct IV；34. after-flame air-valve III；
35. after-flame air-valve IV；36. after-flame air port III；37. after-flame air port IV；38. overfiren air port I；39. overfiren air port II；40. 2 times
Air-valve I；No. 41. 2 air-valve II；42. overfiren air port III；43. overfiren air port IV.
Specific embodiment
This utility model is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1, the experimental provision of observation furnace air classification flowing of the present utility model, the left side of quadrangle tangential circle stove 1
Wall is sequentially installed with from top to bottom after-flame air port III 36, after-flame air port IV 37, overfiren air port III 42, overfiren air port IV 43
With primary air nozzle I 16.After-flame air port III 36 is connected with after-flame airduct III 32, and burn-out valve IV 34 is disposed with thereon；After-flame
Air port IV 37 is connected with after-flame airduct IV 33, and combustion air-valve IV 35 is disposed with thereon；Overfiren air port III 42 is connected with secondary wind
Pipe III 28, is connected to thereon secondary air-valve II 30；Secondary air-valve IV 31 is connected with secondary air channel IV 29, is connected to thereon secondary
Air-valve IV 31；Primary air nozzle I 16 is connected to primary air piping I 22, and an air-valve I 21 is provided with thereon.
The right-side wall of quadrangle tangential circle stove 1 is sequentially installed with from top to bottom after-flame air port I 2, after-flame air port II 3, secondary wind
Mouth I 38, secondary wind II 39 and primary air nozzle II 17.After-flame air port I 2 is connected with after-flame airduct I 6, and after-flame is disposed with thereon
Air-valve I 4；After-flame air port II 3 is connected with after-flame airduct II 7, and after-flame air-valve II 5 is disposed with thereon；Overfiren air port I 38 connects
Secondary air channel I 11 is connected to, secondary air-valve I 40 is connected with thereon；Overfiren air port II 39 is connected with secondary air channel II 12, thereon
It is connected with secondary air-valve II 41.After-flame airduct adapter 8 is by after-flame airduct I 6, after-flame airduct II 7, the and of after-flame airduct III 32
After-flame airduct IV33 is coupled together and connected with after-flame blower fan 10, and in the burnout degree adapter 8 effusion meter I 9 is provided with.It is secondary
Wind adapter I 14 couples together secondary air channel I 11 and secondary air channel II 12, and secondary wind adapter II 27 is by secondary air channel III
28 and secondary air channel IV29 couple together, and common access overfire air fan 15 after connecting with secondary wind adapter I 14, in secondary wind
Effusion meter II 13 is installed on adapter I 14.First air adapter 23 has connected primary air piping II 18 and primary air piping I 22
Come, and be linked in primary air fan 24.Inlet valve 25 and feed pipe 26 and tachymeter 20 are installed in First air adapter 23.
The experimental provision of observation furnace air classification flowing of the present utility model, when in use：
Coal dust is entered in First air adapter 23 from feed pipe 26, and the suction air of primary air fan 24 is distinguished after mixing with coal dust
It is sent in quadrangle tangential circle stove 1 via primary air piping I 18 and primary air piping II 22, forms First air.Connect installed in First air
Tachymeter 20 on pipe 23 can measure the wind speed size of primary air nozzle I 16 and primary air nozzle II 17.Overfire air fan 15 is aspirated
Air via secondary wind adapter I 14 and secondary wind adapter II 27 be respectively fed to secondary pipe I 11, secondary wind adapter II 12,
Secondary air channel III 28 and secondary air channel IV 29.Then from overfiren air port I 38, overfiren air port II 39, overfiren air port III 42
It is admitted in quadrangle tangential circle stove 1 with overfiren air port IV 43, forms secondary wind.Air is via combustion in the draw ambient of after-flame blower fan 10
Wind adapter 8 to the greatest extent is respectively fed in after-flame airduct I 6, after-flame airduct II 7, after-flame airduct III 32 and after-flame airduct IV 33, and
After-flame air port I 2, the after-flame air port II connected from after-flame airduct I, after-flame airduct II, after-flame airduct III, after-flame airduct IV
3rd, after-flame air port III 36 and after-flame air port IV 37 are fed in quadrangle tangential circle stove 1, form burnout degree jet.By adjusting
Be arranged in after-flame air-valve I 4 on after-flame airduct I 6, after-flame airduct II 7, after-flame airduct III 32 and after-flame airduct IV 33,
The aperture size scalable after-flame wind speed of after-flame air-valve II 5, after-flame air-valve III 34 and after-flame air-valve IV 35, after-flame wind speed
Measurement can be measured by the effusion meter I 9 on secondary wind adapter I.In the same manner, by adjusting secondary air channel I 11, two
The secondary air-valve I 40, secondary air-valve II 41, two installed on secondary airduct II 12, secondary air channel III28 and secondary air channel IV 29
The aperture size of secondary air-valve III 30 and secondary air-valve IV 31, adjustable secondary wind speed, the measurement of secondary wind speed can be by installing
Meter II 13 on secondary wind adapter I 14 is obtaining.Change the flow and flow velocity of overfire air fan and burnout degree, Ke Yiguan
Survey the fluid field in furnace distribution of different air classifications.
Claims (8)
1. the experimental provision that a kind of observation furnace air classification is flowed, it is characterised in that include the corner by made by lucite
Circle of contact stove (1), in its bottom First air unit is provided with, and secondary wind unit and burnout degree unit are respectively provided on two sides with the middle,
The tachymeter (20) for measuring First air size is provided with First air unit；It is provided with burnout degree unit for measuring burnout degree
The effusion meter I (9) of wind speed, is provided with the effusion meter II (13) for measuring secondary wind wind speed in secondary wind unit.
2. the experimental provision that a kind of observation furnace air classification according to claim 1 is flowed, it is characterised in that First air
Unit includes primary air fan (24) and coupled First air adapter (23), First air adapter (23) and feed pipe (26) phase
Even, two branch roads are stretched out on First air adapter (23), is all the way primary air piping I (18), another road is primary air piping II (22), one
Secondary airduct I (18) is connected to primary air nozzle I (16) place being arranged on quadrangle tangential circle stove (1), and primary air piping II (22) is connected to
The primary air nozzle II (17) being arranged on quadrangle tangential circle stove (1)；Primary air piping I (18) is provided with an air-valve I (19), First air
Pipe II (22) is provided with an air-valve II (21).
3. the experimental provision that a kind of observation furnace air classification according to claim 2 is flowed, it is characterised in that tachymeter
(20) it is arranged on the pipeline of First air adapter (23).
4. the experimental provision that a kind of observation furnace air classification according to claim 2 is flowed, it is characterised in that feed pipe
(26) inlet valve (25) is additionally provided with.
5. the experimental provision that a kind of observation furnace air classification according to claim 1 is flowed, it is characterised in that secondary wind
Unit include overfire air fan (15) and with secondary wind adapter I (14) and secondary wind adapter II (27) that respectively it is connected；
Two branch roads are stretched out in secondary wind adapter I (14), are all the way secondary air channel I (11), another road is secondary air channel II (12),
Secondary air channel I (11) is connected to overfiren air port I (38) place being arranged on quadrangle tangential circle stove (1), secondary air channel II (12) connections
To the overfiren air port II (39) being arranged on quadrangle tangential circle stove (1)；Secondary air channel I (11) is provided with secondary air-valve I (40), secondary
Airduct II (12) is provided with secondary air-valve II (41)；
Two branch roads are stretched out in secondary wind adapter II (27), is all the way secondary air channel III (28), another road is secondary air channel IV
(29), secondary air channel III (28) is connected to the overfiren air port III (42) being arranged on quadrangle tangential circle stove (1), secondary air channel IV
(29) it is connected to the overfiren air port IV (43) being arranged on quadrangle tangential circle stove (1)；Secondary air channel III (28) is provided with secondary air-valve
III (30), secondary air channel IV (29) are provided with secondary air-valve IV (31).
6. the experimental provision that a kind of observation furnace air classification according to claim 5 is flowed, it is characterised in that effusion meter
II (13) is arranged on the pipeline of secondary wind adapter I (14).
7. the experimental provision that a kind of observation furnace air classification according to claim 1 is flowed, it is characterised in that burnout degree
Unit includes burnout degree blower fan (10) and coupled burnout degree adapter (8), and on burnout degree adapter (8) four branch roads are stretched out,
Respectively after-flame airduct I (6), after-flame airduct II (7), after-flame airduct III (32) and after-flame airduct IV (33)；
After-flame airduct I (6) is connected to after-flame air port I (2) place being arranged on quadrangle tangential circle stove (1), after-flame airduct II (7) connection
To after-flame air port II (3) place being arranged on quadrangle tangential circle stove (1), after-flame airduct III (32) is connected to and is arranged on quadrangle tangential circle
After-flame air port III (36) place on stove (1), after-flame airduct IV (33) is connected to the burnout degree being arranged on quadrangle tangential circle stove (1)
Mouth IV (37) place；
After-flame airduct I (6) is provided with after-flame air-valve I (4), and after-flame airduct II (7) is provided with after-flame air-valve II (5), after-flame airduct
III (32) is provided with after-flame air-valve III (34), and after-flame airduct IV (33) is provided with after-flame air-valve IV (35).
8. the experimental provision that a kind of observation furnace air classification according to claim 7 is flowed, it is characterised in that effusion meter
I (9) is arranged on the pipeline of burnout degree adapter (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621192320.2U CN206161273U (en) | 2016-11-04 | 2016-11-04 | Experimental device for air classification flows in surveing stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621192320.2U CN206161273U (en) | 2016-11-04 | 2016-11-04 | Experimental device for air classification flows in surveing stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206161273U true CN206161273U (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621192320.2U Expired - Fee Related CN206161273U (en) | 2016-11-04 | 2016-11-04 | Experimental device for air classification flows in surveing stove |
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| CN (1) | CN206161273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370386A (en) * | 2016-11-04 | 2017-02-01 | 榆林学院 | Experiment device used for observing air classification flow in corner tangential pulverized coal furnace |
-
2016
- 2016-11-04 CN CN201621192320.2U patent/CN206161273U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370386A (en) * | 2016-11-04 | 2017-02-01 | 榆林学院 | Experiment device used for observing air classification flow in corner tangential pulverized coal furnace |
| CN106370386B (en) * | 2016-11-04 | 2019-03-08 | 邵阳学院 | A kind of experimental provision for observing air classification flowing in quadrangle tangential circle coal-powder boiler |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20171104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |