CN106644607B - A kind of heat power station fly ash sampling device of coal dust suspension combustion - Google Patents
A kind of heat power station fly ash sampling device of coal dust suspension combustion Download PDFInfo
- Publication number
- CN106644607B CN106644607B CN201611053428.8A CN201611053428A CN106644607B CN 106644607 B CN106644607 B CN 106644607B CN 201611053428 A CN201611053428 A CN 201611053428A CN 106644607 B CN106644607 B CN 106644607B
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- flying dust
- ash tube
- flue
- separator
- collecting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2211—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with cyclones
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a kind of heat power station fly ash sampling devices of coal dust suspension combustion,A part is set on inside flue,Another part is set on outside flue,And using air preheater export level flue lower wall surface as interface,Including separator,Flying dust ash tube,Connecting flange,Driving mechanism and collecting the gray bottle,The flying dust ash tube is connected with separator lower end,The connecting flange is connect with air preheater export level flue lower wall surface,The driving mechanism is connect with flying dust ash tube,The collecting the gray bottle and flying dust ash tube detachable connection,The separator side is equipped with smoke inlet nozzle,The separator upper end is equipped with exhanst gas outlet nozzle,The connecting flange lower end is connected with filler differential,And airtight and watertight padding is equipped in the gap formed between connecting flange and filler differential,The driving mechanism is by handle,Gear and rack composition,Realize the flying dust sample that different location is taken out from flue,The foundation of firing optimization is provided to boiler operatiopn personnel.
Description
Technical field
The invention belongs to the boiler controller system technical field of coal dust suspension combustion, specifically, the present invention relates to a kind of coal dusts
The heat power station fly ash sampling device of suspension combustion.
Background technology
As country further improves energy-saving index, heat power plant boiler unit further reduces coal consumption for power generation,
Each power plant strengthens boiler combustion adjustment, monitors boiler controller system unburned carbon in flue dust in time, it is necessary to which boiler controller system flying dust is divided
Analysis, it is desirable to which fly ash sampling device can take out representative flying dust sample at any time.
Since deduster is larger to air preheater exhaust pass flow section, and arrangement is shorter, and flue gas flows very in flue
Irregularly, so certain point takes flying dust sample often not have representativeness in flue.
Therefore, it is badly in need of a kind of fly ash sampling device, should just can be taken off flying dust at any time, while the flying dust sample to be sought out
It is representative, the foundation of firing optimization is provided to boiler operatiopn personnel.
Invention content
The present invention provides a kind of heat power station fly ash sampling device of coal dust suspension combustion, it is therefore an objective to realize from flue
The flying dust sample of different location is taken out, the foundation of firing optimization is provided to boiler operatiopn personnel.
To achieve these goals, the technical solution taken of the present invention is：A kind of heat power station of coal dust suspension combustion
Fly ash sampling device, a part are set on inside flue, and another part is set on outside flue, and export level with air preheater
Flue lower wall surface is as interface, including separator, flying dust ash tube, connecting flange, driving mechanism and collecting the gray bottle, wherein described
Flying dust ash tube is connected with separator lower end, and the connecting flange connects with air preheater export level flue lower wall surface
It connects, the driving mechanism is connect with flying dust ash tube, the collecting the gray bottle and flying dust ash tube detachable connection.
Preferably, the separator side is equipped with smoke inlet nozzle, and the smoke inlet nozzle and separator inner wall
Tangentially connected, for the smoke inlet nozzle using decrement structure, the separator upper end is equipped with exhanst gas outlet nozzle, and the cigarette
The part of gas outlet nozzle in the separator is more than smoke inlet nozzle, and smoke inlet nozzle is inverse to flue gas flow direction, exhanst gas outlet
Nozzle is consistent with flue gas flow direction.
Preferably, the separator lower end is designed using vertebral body structure.
Preferably, the connecting flange lower end is connected with filler differential, and is formed between connecting flange and filler differential
Gap in be equipped with airtight and watertight padding.
Preferably, it is equipped with rack limited block below the connecting flange.
Preferably, the driving mechanism is made of handle, gear and rack, wherein the handle is connect with gear, it is described
Rack is fixedly connected with flying dust ash tube side wall, and makes the direction of motion of rack consistent with the axis direction of flying dust ash tube.
Preferably, the rack upper end is equipped with block.
Preferably, the flying dust ash tube lower end is equipped with sealing plectane.
The present invention is to take out the flying dust sample of different location from flue for realizing, burning is provided to boiler operatiopn personnel
The foundation of adjustment is using the advantageous effect of above technical scheme：The heat power station Fly ash sampling dress of the coal dust suspension combustion
It puts, a part is set on inside flue, and another part is set on outside flue, and with air preheater export level flue lower wall surface
As interface, including separator, flying dust ash tube, connecting flange, driving mechanism and collecting the gray bottle, wherein the flying dust ash tube
It is connected with separator lower end, the connecting flange and air preheater export level flue lower wall surface, the driving mechanism
It is connect with flying dust ash tube, the collecting the gray bottle and flying dust ash tube detachable connection are realized by separator in flue gas
The separation of flying dust；The separator side is equipped with smoke inlet nozzle, and the smoke inlet nozzle and separator inner wall are tangential
Connection, for the smoke inlet nozzle using decrement structure, smoke inlet nozzle is inverse to flue gas flow direction, and flue gas is made tangentially to enter separation
In device, there is afflux acceleration to flue gas, due to centrifugal force so that flying dust separative efficiency higher from flue gas；
The separator upper end is equipped with exhanst gas outlet nozzle, and the part of the exhanst gas outlet nozzle in the separator is more than smoke inlet
Nozzle, exhanst gas outlet nozzle is consistent with flue gas flow direction, and the flue gas for making to discharge from exhanst gas outlet nozzle is by flue gas stream around
Ejector action makes the flying dust sample being collected by collecting the gray bottle more representative；The separator lower end uses vertebral body structure
Design, facilitates the fly ash granule being centrifuged out and falls into flying dust ash tube along vertebral body structure inner wall；Under the connecting flange
End is connected with filler differential, and airtight and watertight padding is equipped in the gap formed between connecting flange and filler differential, realizes winged
The movable sealed connection of grey ash tube and flue；Rack limited block is equipped with below the connecting flange, the driving mechanism is by hand
Handle, gear and rack composition, wherein the handle is connect with gear, the rack is fixedly connected with flying dust ash tube side wall, and
The direction of motion for making rack is consistent with the axis direction of flying dust ash tube, and the rack upper end is equipped with block, wherein the rack
Length determines that the fixation of taking root of gear is also required to be designed according to scene, passes through driving mechanism according to the height scene of flue
Action, realize vertical direction of the separator in flue bosom position and continuously move, make the flying dust sample of taking-up have
It is representative；The flying dust ash tube lower end is equipped with sealing plectane, realizes and flying dust ash tube is detected before collecting flying dust sample
Smoothness and the smoothness for ensureing sampling, and do not influence environmental sanitation.
Description of the drawings
Fig. 1 is the fly ash sampling device structure diagram；
Fig. 2 is A-A sectional views；
Wherein：
1st, separator；2nd, flying dust ash tube；3rd, connecting flange；4th, driving mechanism；5th, collecting the gray bottle；6th, air preheater exports
Horizontal flue lower wall surface；10th, smoke inlet nozzle；11st, exhanst gas outlet nozzle；20th, plectane is sealed；30th, filler differential；31st, it is close
Packing material；3-1, rack limited block；40th, handle；41st, gear；42nd, rack；42-1, block.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to the specific embodiment of the present invention further details of
Explanation, it is therefore an objective to those skilled in the art be helped to have more complete, accurate and deep reason to design of the invention, technical solution
Solution, and contribute to its implementation.
As shown in Figure 1 to Figure 2, the present invention is a kind of heat power station fly ash sampling device of coal dust suspension combustion, is to use
Come realize from flue take out different location flying dust sample, to boiler operatiopn personnel provide firing optimization foundation.
Specifically, as shown in Figure 1 to Figure 2, a kind of heat power station fly ash sampling device of coal dust suspension combustion, one
Be divided into inside flue, another part be set on flue outside, and using air preheater export level flue lower wall surface 6 as divide
Interface, including separator 1, flying dust ash tube 2, connecting flange 3, driving mechanism 4 and collecting the gray bottle 5, wherein the flying dust ash tube 2
It is connected with 1 lower end of separator, the connecting flange 3 is connect with air preheater export level flue lower wall surface 6, the drive
Motivation structure 4 is connect with flying dust ash tube 2, the collecting the gray bottle 5 and 2 detachable connection of flying dust ash tube.
As shown in Fig. 2, 1 side of separator is equipped with smoke inlet nozzle 10, and the smoke inlet nozzle 10 is with dividing
Tangentially connected from 1 inner wall of device, the smoke inlet nozzle 10 is using decrement structure, as shown in Figure 1,1 upper end of the separator is set
There is exhanst gas outlet nozzle 11, and part of the exhanst gas outlet nozzle 11 in separator 1 is more than smoke inlet nozzle 10, flue gas
Inlet nozzle 10 is inverse to flue gas flow direction, and exhanst gas outlet nozzle 11 is consistent with flue gas flow direction.
As shown in Figure 1,1 lower end of separator is designed using vertebral body structure.3 lower end of connecting flange is connected with filler
Differential 30, and airtight and watertight padding 31 is equipped in the gap formed between connecting flange 3 and filler differential 30.The connecting flange 3
Lower section is equipped with rack limited block 3-1.The driving mechanism 4 is made of handle 40, gear 41 and rack 42, wherein the handle 40
It is connect with gear 41, the rack 42 is fixedly connected with 2 side wall of flying dust ash tube, and falls the direction of motion of rack 42 and flying dust
The axis direction of ash pipe 2 is consistent.42 upper end of rack is equipped with block 42-1.2 lower end of flying dust ash tube is equipped with sealing and justifies
Plate 20.
Specific working mode is illustrated with specific embodiment below：
Before collection flying dust is sampled, when boiler operatiopn, collecting the gray bottle 5 is fitted without in 2 lower end of flying dust ash tube
Under conditions of, the sealing plectane 20 that 2 lower end of flying dust ash tube is equipped with is unscrewed into smaller angle, is checked under flying dust ash tube 2
Whether end has air to enter in flue, has air entrance then to represent that flying dust ash tube 2 is unimpeded and is sampled operation.
Followed by sampling operation, the bottleneck of collecting the gray bottle 5 and 2 lower end of flying dust ash tube are first tightened into sealing, make air
Flying dust ash tube 2 cannot be entered from junction to be limited, sealing plectane 20 is then unscrewed into smaller angle, looks at whether have at this time
Fly ash granule is fallen into collecting the gray bottle 5, if there is then representing that it is correct that junction is tightly connected, otherwise reinstalls collecting the gray bottle 5；Pass through
Driving mechanism 4 makes separator 1 be in flue bottom, then opens sealing plectane 20 completely, flue gas is from smoke inlet nozzle 10
Accelerating tangentially to enter in separator 1 by afflux, fly ash granule is separated from flue gas under the influence of centrifugal force, and
It slides into flying dust ash tube 2, is deposited in collecting the gray bottle 5, root by the vertebral body structure inner wall of 1 lower end of separator under gravity
According to the actual conditions of boiler operatiopn, during first time sampling operation, it should which the flying dust for determining to collect in collecting the gray bottle 5 accounts for about collecting the gray bottle 5
Sample time during 2/3 height of volume, and as the time of later continuous sampling, in sampling process, rotational handle 40 is driven
Moving gear 41 rotates, and rack 42 of the separator 1 on flying dust ash tube 2 is made slowly to be promoted or declined under driving, make separator 1 from
The minimum point of flue moves to peak, then moves to minimum point from peak, wherein the speed for being promoted or being declined depends on collection
The amount of flying dust in grey bottle 5,42 length of rack determine that the fixation of taking root of gear 41 is also required to according to the height scene of flue
It is designed according to scene；In addition 3 lower section of connecting flange is equipped with rack limited block 3-1, and 42 upper end of rack is equipped with gear
Block 42-1 ensure that the movement travel of rack 42 without departing from range, and after sampling, rotatory sealing plectane 20 covers flying dust
Ash tube 2 removes collecting the gray bottle 5, and only minimal amount of air leaks into flue at this time, do not interfere with boiler safety and economic operation and
Separator 1 is made to be stopped, flying dust will not be deposited in flying dust ash tube 2.
When not needing to sampling, sampler is placed on stack base, flue bottom is located in 1 vertebral body structure lower part of separator
Portion, while collecting the gray bottle 5 is removed in time, rotatory sealing plectane 20 covers flying dust ash tube 2, and has a small amount of air to enter flying dust and fall
Ash pipe 2, otherwise, sample time once being more than the time of above-mentioned determining continuous sampling, are not only loaded with flying dust in collecting the gray bottle 5,
So that also the full flying dust of product to be cleared up this part of flying dust, will influence environmental sanitation in flying dust ash tube 2.
The present invention is exemplarily described above in association with attached drawing, it is clear that present invention specific implementation is not by above-mentioned side
The limitation of formula, as long as employ the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress；Or not
It is improved, the above-mentioned design of the present invention and technical solution are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (6)
1. a kind of heat power station fly ash sampling device of coal dust suspension combustion, a part is set on inside flue, another part
Outside flue, and using air preheater export level flue lower wall surface as interface, it is characterised in that：Including separation
Device, flying dust ash tube, connecting flange, driving mechanism and collecting the gray bottle, wherein the flying dust ash tube interlinks with separator lower end
It connects, the connecting flange is connect with air preheater export level flue lower wall surface, and the driving mechanism connects with flying dust ash tube
It connects, the collecting the gray bottle and flying dust ash tube detachable connection；The connecting flange lower end is connected with filler differential, and is connecting
Airtight and watertight padding is equipped in the gap formed between flange and filler differential；
The flying dust ash tube lower end is equipped with sealing plectane；
Before collection flying dust is sampled, when boiler operatiopn, the condition of collecting the gray bottle is fitted without in flying dust ash tube lower end
Under, the sealing plectane that flying dust ash tube lower end is equipped with is unscrewed into smaller angle, is checked from whether flying dust ash tube lower end has time
Gas enters in flue, has air entrance then to represent that flying dust ash tube is unimpeded and is sampled operation；Followed by sampling operation,
Sealing is first tightened into the bottleneck of collecting the gray bottle and flying dust ash tube lower end, prevent the air be from entering flying dust ash tube from junction
Then sealing plectane is unscrewed smaller angle, looks at whether have fly ash granule to fall into collecting the gray bottle at this time, if there is then table by limit
It is correct to show that junction is tightly connected, otherwise reinstalls collecting the gray bottle；
After sampling, rotatory sealing plectane covers flying dust ash tube, removes collecting the gray bottle, at this time only minimal amount of air leakage
Enter flue, do not interfere with the safety and economic operation of boiler and separator is made to be stopped, flying dust will not be deposited on flying dust ash tube
In；
When not needing to sampling, sampler is placed on stack base, stack base is located in separator vertebral body structure lower part, simultaneously
Collecting the gray bottle is removed in time, rotatory sealing plectane covers flying dust ash tube, and has a small amount of air to enter flying dust ash tube, otherwise,
Sample time once being more than the time of determining continuous sampling, is not only loaded with flying dust in collecting the gray bottle, so that in flying dust ash tube
Also by the full flying dust of product, this part of flying dust is cleared up, environmental sanitation will be influenced.
2. a kind of heat power station fly ash sampling device of coal dust suspension combustion according to claim 1, it is characterised in that：
The separator side is equipped with smoke inlet nozzle, and the smoke inlet nozzle and separator inner wall are tangentially connected, the cigarette
Gas inlet nozzle is using decrement structure, and the separator upper end is equipped with exhanst gas outlet nozzle, and the exhanst gas outlet nozzle is dividing
It is more than smoke inlet nozzle from the part in device, smoke inlet nozzle is inverse to flue gas flow direction, exhanst gas outlet nozzle and flue gas flow direction
Unanimously.
3. a kind of heat power station fly ash sampling device of coal dust suspension combustion according to claim 2, it is characterised in that：
It is designed using vertebral body structure the separator lower end.
4. a kind of heat power station fly ash sampling device of coal dust suspension combustion according to claim 1, it is characterised in that：
Rack limited block is equipped with below the connecting flange.
5. a kind of heat power station fly ash sampling device of coal dust suspension combustion according to claim 1, it is characterised in that：
The driving mechanism is made of handle, gear and rack, wherein the handle is connect with gear, the rack and flying dust ash tube
Side wall is fixedly connected, and makes the direction of motion of rack consistent with the axis direction of flying dust ash tube.
6. a kind of heat power station fly ash sampling device of coal dust suspension combustion according to claim 5, it is characterised in that：
The rack upper end is equipped with block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611053428.8A CN106644607B (en) | 2016-11-25 | 2016-11-25 | A kind of heat power station fly ash sampling device of coal dust suspension combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611053428.8A CN106644607B (en) | 2016-11-25 | 2016-11-25 | A kind of heat power station fly ash sampling device of coal dust suspension combustion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106644607A CN106644607A (en) | 2017-05-10 |
| CN106644607B true CN106644607B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611053428.8A Expired - Fee Related CN106644607B (en) | 2016-11-25 | 2016-11-25 | A kind of heat power station fly ash sampling device of coal dust suspension combustion |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111396909A (en) * | 2020-03-30 | 2020-07-10 | 哈尔滨锅炉厂有限责任公司 | Flue-passing device of ash falling pipe for pneumatic ash removing device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5621213A (en) * | 1995-07-07 | 1997-04-15 | Novitron International Inc. | System and method for monitoring a stack gas |
| CN2575650Y (en) * | 2002-11-07 | 2003-09-24 | 贾朝群 | Hardometer |
| CN203310672U (en) * | 2013-05-30 | 2013-11-27 | 大唐甘谷发电厂 | Boiler fly ash sampling device |
| CN203965200U (en) * | 2014-07-24 | 2014-11-26 | 福建龙净环保股份有限公司 | A kind of smoke dust sampling system |
| CN104502284A (en) * | 2014-12-16 | 2015-04-08 | 西安西热锅炉环保工程有限公司 | Online detection device for carbon content in flue dust of coal fired power plant |
| CN206321472U (en) * | 2016-11-25 | 2017-07-11 | 大唐户县第二热电厂 | A kind of heat power station fly ash sampling device of coal dust suspension combustion |
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