CN106644607A - Pulverized coal suspension combustion thermal power station fly ash sampling device - Google Patents
Pulverized coal suspension combustion thermal power station fly ash sampling device Download PDFInfo
- Publication number
- CN106644607A CN106644607A CN201611053428.8A CN201611053428A CN106644607A CN 106644607 A CN106644607 A CN 106644607A CN 201611053428 A CN201611053428 A CN 201611053428A CN 106644607 A CN106644607 A CN 106644607A
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- Prior art keywords
- fly ash
- flue
- separator
- flying dust
- power station
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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 pulverized coal suspension combustion thermal power station fly ash sampling device. One part of the device is arranged inside a flue, another part of the device is arranged outside the flue, and the lower wall surface of a horizontal flue at an air preheater outlet serves as an interface. The device comprises a separator, a fly ash falling pipe, a connecting flange, a driving mechanism and an ash collection bottle, wherein the fly ash falling pipe is connected with the lower end of the separator in a communicated manner, the connecting flange is connected with the lower wall surface of the horizontal flue at the air preheater outlet, the driving mechanism is connected with the fly ash falling pipe, and the ash collection bottle is detachably connected with the fly ash falling pipe. A flue gas inlet nozzle is formed in the side face of the separator, a flue gas outlet nozzle is formed in the upper end of the separator, the lower end of the connecting flange is connected with a packing press, sealing packing is arranged in the gap formed between the connecting flange and the packing press, and the driving mechanism comprises a handle, a gear and a rack. Fly ash samples at different positions are taken out from the flue, and a combustion adjustment basis is provided for boiler operators.
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 dust
The heat power station fly ash sampling device of suspension combustion.
Background technology
With further raising of the country to energy-saving index, heat power plant boiler unit further reduces gross coal consumption rate,
Each power plant strengthens boiler combustion adjustment, in time monitoring boiler controller system unburned carbon in flue dust, it is necessary to boiler controller system flying dust is carried out point
Analysis, it is desirable to which fly ash sampling device can at any time take out representative flying dust sample.
Due to cleaner unit it is larger to air preheater exhaust pass flow section, and arrange it is shorter, flue gas flows very in flue
Irregularly, so to take flying dust sample often not representative for certain point in flue.
Therefore, it is badly in need of a kind of fly ash sampling device, flying dust should be just can be taken off at any time, while the flying dust sample to be sought out
It is representative, provide the foundation of firing optimization to boiler operatiopn personnel.
The content of the invention
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 diverse location is taken out, to boiler operatiopn personnel the foundation of firing optimization is provided.
To achieve these goals, the technical scheme taken of the present invention is：A kind of heat power station of coal dust suspension combustion
Fly ash sampling device, inside flue, another part exports level to a part outside flue with air preheater
Flue lower wall surface is used as separating surface, including separator, flying dust ash tube, adpting flange, drive mechanism and collecting the gray bottle, wherein described
Flying dust ash tube is connected with separator lower end, and the adpting flange connects with air preheater outlet horizontal flue lower wall surface
Connect, the drive mechanism is connected with flying dust ash tube, the collecting the gray bottle and flying dust ash tube detachable connection.
Preferably, the separator side is provided with smoke inlet nozzle, and the smoke inlet nozzle and separator inwall
Tangentially connected, using structure is reduced, the separator upper end is provided with exhanst gas outlet nozzle, and the cigarette to the smoke inlet nozzle
Gas outlet nozzle part in the separator exceedes 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 adpting flange lower end is connected with filler differential, and is formed between adpting flange and filler differential
Gap in be provided with airtight and watertight padding.
Preferably, the adpting flange lower section is provided with tooth bar limited block.
Preferably, the drive mechanism is made up of handle, gear and tooth bar, wherein the handle is connected with gear, it is described
Tooth bar is fixedly connected with flying dust ash tube side wall, and makes the direction of motion of tooth bar consistent with the axis direction of flying dust ash tube.
Preferably, the tooth bar upper end is provided with block.
Preferably, the flying dust ash tube lower end is provided with sealing plectane.
The present invention is for realizing taking out the flying dust sample of diverse location from flue, to boiler operatiopn personnel burning being provided
The foundation of adjustment, be using the beneficial effect of above technical scheme：The heat power station Fly ash sampling dress of the coal dust suspension combustion
Put, inside flue, another part exports horizontal flue lower wall surface to a part outside flue with air preheater
As separating surface, including separator, flying dust ash tube, adpting flange, drive mechanism and collecting the gray bottle, wherein the flying dust ash tube
It is connected with separator lower end, the adpting flange exports horizontal flue lower wall surface, the drive mechanism with air preheater
It is connected with flying dust ash tube, the collecting the gray bottle and flying dust ash tube detachable connection are realized in flue gas by separator
The separation of flying dust；The separator side is provided with smoke inlet nozzle, and the smoke inlet nozzle is tangential with separator inwall
Connection, the smoke inlet nozzle is inverse to flue gas flow direction using structure, smoke inlet nozzle is reduced, and flue gas is tangentially entered and separates
In device, there is the effect that afflux accelerates to flue gas, due to due to centrifugal force so that flying dust separation efficiency from flue gas is higher；
The separator upper end is provided with exhanst gas outlet nozzle, and exhanst gas outlet nozzle part in the separator exceedes smoke inlet
Nozzle, exhanst gas outlet nozzle is consistent with flue gas flow direction, makes the flue gas discharged from exhanst gas outlet nozzle be subject to surrounding flue gas stream
Ejector action, makes the flying dust sample collected by collecting the gray bottle more representative；The separator lower end adopts vertebral body structure
Design, facilitates the fly ash granule being centrifuged out and falls into flying dust ash tube along vertebral body structure inwall；Under the adpting flange
End is connected with filler differential, and is provided with airtight and watertight padding in the gap formed between adpting flange and filler differential, realizes winged
Grey ash tube is movably tightly connected with flue；The adpting flange lower section is provided with tooth bar limited block, and the drive mechanism is by handss
Handle, gear and tooth bar composition, wherein the handle is connected with gear, the tooth bar is fixedly connected with flying dust ash tube side wall, and
Make the direction of motion of tooth bar consistent with the axis direction of flying dust ash tube, the tooth bar upper end is provided with block, wherein the tooth bar
Length determines that the fixation of taking root of gear is also required to be designed according to scene, by drive mechanism according to the height scene of flue
Action, realize vertical direction of the separator in flue bosom position and continuously move, the flying dust sample for making taking-up has
It is representative；The flying dust ash tube lower end is provided with sealing plectane, realizes to collect and detect before flying dust sample flying dust ash tube
Smoothness, and ensure the smoothness of sampling, and do not affect environmental health.
Description of the drawings
Fig. 1 is the fly ash sampling device structural representation；
Fig. 2 is A-A sectional views；
Wherein：
1st, separator；2nd, flying dust ash tube；3rd, adpting flange；4th, drive mechanism；5th, collecting the gray bottle；6th, air preheater outlet level
Flue lower wall surface；10th, smoke inlet nozzle；11st, exhanst gas outlet nozzle；20th, plectane is sealed；30th, filler differential；31st, sealing is filled out
Material；3-1, tooth bar limited block；40th, handle；41st, gear；42nd, tooth bar；42-1, block.
Specific embodiment
Below against accompanying drawing, by the description to embodiment, further details of is made to the specific embodiment of the present invention
Explanation, it is therefore an objective to help those skilled in the art to have more complete, accurate and deep reason to design of the invention, technical scheme
Solution, and contribute to its enforcement.
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
To realize taking out the flying dust sample of diverse location from flue, to boiler operatiopn personnel the foundation of firing optimization is provided.
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
It is divided into inside flue, another part is located at outside flue, and using air preheater outlet horizontal flue lower wall surface 6 as points
Interface, including separator 1, flying dust ash tube 2, adpting flange 3, drive mechanism 4 and collecting the gray bottle 5, wherein the flying dust ash tube 2
It is connected with the lower end of separator 1, the adpting flange 3 is connected with air preheater outlet horizontal flue lower wall surface 6, the drive
Motivation structure 4 is connected with flying dust ash tube 2, the collecting the gray bottle 5 and the detachable connection of flying dust ash tube 2.
As shown in Fig. 2 the side of the separator 1 is provided with smoke inlet nozzle 10, and the smoke inlet nozzle 10 with point
Tangentially connected from the inwall of device 1, the smoke inlet nozzle 10 is adopted and reduces structure, as shown in figure 1, the upper end of the separator 1 sets
There is exhanst gas outlet nozzle 11, and part of the exhanst gas outlet nozzle 11 in separator 1 exceedes 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, the lower end of the separator 1 is designed using vertebral body structure.The lower end of the adpting flange 3 is connected with filler
Airtight and watertight padding 31 is provided with differential 30, and the gap formed between adpting flange 3 and filler differential 30.The adpting flange 3
Lower section is provided with tooth bar limited block 3-1.The drive mechanism 4 is made up of handle 40, gear 41 and tooth bar 42, wherein the handle 40
It is connected with gear 41, the tooth bar 42 is fixedly connected with the side wall of flying dust ash tube 2, and makes the direction of motion of tooth bar 42 and flying dust fall
The axis direction of ash pipe 2 is consistent.The upper end of the tooth bar 42 is provided with block 42-1.The lower end of flying dust ash tube 2 is provided with sealing circle
Plate 20.
Hereinafter specific works mode is illustrated with specific embodiment：
It is being sampled before collecting flying dust, when boiler operatiopn, in the lower end of flying dust ash tube 2 bar of collecting the gray bottle 5 is being fitted without
Under part, the sealing plectane 20 that the lower end of flying dust ash tube 2 is provided with is outwarded winding less angle, inspection is from the lower end of flying dust ash tube 2
No to have air to enter in flue, then expression flying dust ash tube 2 is unimpeded is sampled operation to have air to enter.
Followed by sampling operation, first the bottleneck of collecting the gray bottle 5 and the lower end of flying dust ash tube 2 are tightened into sealing, make air
Can not be limited into flying dust ash tube 2 from junction, then sealing plectane 20 is outwarded winding less angle, look at now whether have
Fly ash granule is fallen in collecting the gray bottle 5, if then representing that junction is tightly connected correctly, otherwise reinstalls collecting the gray bottle 5；Pass through
Drive mechanism 4 makes separator 1 in flue bottom, then fully opens sealing plectane 20, and flue gas is from smoke inlet nozzle 10
Accelerate tangentially to enter in separator 1 through afflux, under the influence of centrifugal force fly ash granule is separated from flue gas, and
Vertebral body structure inwall under action of gravity through the lower end of separator 1 is slid into flying dust ash tube 2, in being deposited on collecting the gray bottle 5, root
According to the practical situation of boiler operatiopn, during first time sampling operation, it should determine that the flying dust collected in collecting the gray bottle 5 accounts for collecting the gray bottle 5
Sample time during 2/3 height of volume, and as the time of later continuous sampling, in sampling process, handle 40 is rotated, drive
Moving gear 41 is rotated, and makes that tooth bar 42 of the separator 1 on flying dust ash tube 2 is slow under driving to be lifted or declined, make separator 1 from
The minimum point of flue moves to peak, then moves to minimum point from peak, wherein the speed for being lifted or being declined depends on collection
The amount of the flying dust in grey bottle 5, the length of the tooth bar 42 determines 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 the lower section of the adpting flange 3 is provided with tooth bar limited block 3-1, and the upper end of the tooth bar 42 is provided with gear
Block 42-1, it is ensured that without departing from scope, after sampling terminates, rotatory sealing plectane 20 covers flying dust for the movement travel of tooth bar 42
Ash tube 2, removes collecting the gray bottle 5, and now only minimal amount of air leaks into flue, do not interfere with boiler safety and economic operation and
Separator 1 is set to quit work, flying dust will not be deposited in flying dust ash tube 2.
When need not sample, sampler is placed on into stack base, flue bottom is located in the vertebral body structure bottom of separator 1
Portion, while removing collecting the gray bottle 5 in time, rotatory sealing plectane 20 covers flying dust ash tube 2, and has a small amount of air to fall into flying dust
Ash pipe 2, otherwise, sample time, once exceeding the time of the continuous sampling of above-mentioned determination, is not only loaded with flying dust in collecting the gray bottle 5,
So that also the full flying dust of product will be cleared up into this part of flying dust in flying dust ash tube 2, environmental health will be affected.
The present invention is exemplarily described above in association with accompanying drawing, it is clear that the present invention is implemented and do not receive above-mentioned side
The restriction of formula, as long as employ the improvement of the various unsubstantialities that method of the present invention design and technical scheme are carried out；Or not
It is improved, the above-mentioned design of the present invention and technical scheme are directly applied to into other occasions, in protection scope of the present invention
Within.
Claims (8)
1. a kind of heat power station fly ash sampling device of coal dust suspension combustion, a part of inside flue, another part
Outside flue, and horizontal flue lower wall surface is exported as separating surface using air preheater, it is characterised in that：Including separation
Device, flying dust ash tube, adpting flange, drive mechanism and collecting the gray bottle, wherein the flying dust ash tube interlinks with separator lower end
Connect, the adpting flange is connected with air preheater outlet horizontal flue lower wall surface, and the drive mechanism connects with flying dust ash tube
Connect, the collecting the gray bottle and flying dust ash tube detachable connection.
2. the heat power station fly ash sampling device of a kind of coal dust suspension combustion according to claim 1, it is characterised in that：
The separator side is provided with smoke inlet nozzle, and the smoke inlet nozzle is tangentially connected with separator inwall, the cigarette
Gas inlet nozzle is provided with exhanst gas outlet nozzle using structure, the separator upper end is reduced, and the exhanst gas outlet nozzle is dividing
Part in device exceedes smoke inlet nozzle, and smoke inlet nozzle is inverse to flue gas flow direction, exhanst gas outlet nozzle and flue gas flow direction
Unanimously.
3. the heat power station fly ash sampling device of a kind of coal dust suspension combustion according to claim 2, it is characterised in that：
Designed using vertebral body structure the separator lower end.
4. the heat power station fly ash sampling device of a kind of coal dust suspension combustion according to claim 1, it is characterised in that：
The adpting flange lower end is connected with filler differential, and is provided with sealing in the gap formed between adpting flange and filler differential
Filler.
5. the heat power station fly ash sampling device of a kind of coal dust suspension combustion according to claim 1, it is characterised in that：
The adpting flange lower section is provided with tooth bar limited block.
6. the heat power station fly ash sampling device of a kind of coal dust suspension combustion according to claim 1, it is characterised in that：
The drive mechanism is made up of handle, gear and tooth bar, wherein the handle is connected with gear, the tooth bar and flying dust ash tube
Side wall is fixedly connected, and makes the direction of motion of tooth bar consistent with the axis direction of flying dust ash tube.
7. the heat power station fly ash sampling device of a kind of coal dust suspension combustion according to claim 6, it is characterised in that：
The tooth bar upper end is provided with block.
8. the heat power station fly ash sampling device of a kind of coal dust suspension combustion according to claim 1, it is characterised in that：
The flying dust ash tube lower end is provided with sealing plectane.
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 true CN106644607A (en) | 2017-05-10 |
| CN106644607B 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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| Country | Link |
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| CN (1) | CN106644607B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (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 |
-
2016
- 2016-11-25 CN CN201611053428.8A patent/CN106644607B/en not_active Expired - Fee Related
Patent Citations (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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
|---|---|
| CN106644607B (en) | 2018-06-29 |
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Granted publication date: 20180629 Termination date: 20191125 |