CN205535935U - Air distribution controlling means and traveling grate boiler for traveling grate boiler - Google Patents
Air distribution controlling means and traveling grate boiler for traveling grate boiler Download PDFInfo
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- CN205535935U CN205535935U CN201620278631.4U CN201620278631U CN205535935U CN 205535935 U CN205535935 U CN 205535935U CN 201620278631 U CN201620278631 U CN 201620278631U CN 205535935 U CN205535935 U CN 205535935U
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Abstract
The utility model discloses an air distribution controlling means and traveling grate boiler for traveling grate boiler, this air distribution controlling means, include: boiler blower, a plurality of air distribution chamber, the grate length direction who follows traveling grate boiler arranges that a plurality of air distribution chamber communicate to boiler blower's export through the air distribution pipeline in order to supply with the required air of burning stage by stage, a plurality of electronic adjusting air valve are with the air distribution chamber one -to -one for the regulation gets into each air distribution chamber's air feed volume through the air distribution pipeline, a plurality of flue gases contain oxygen content sensor, with the air distribution chamber one -to -one for detect the oxygen content of the flue gas of the coal -fired burning production of the positive upper portion of each air distribution chamber grate, the controller is connected the flue gas and is contained oxygen content sensor and electronic adjusting air valve for the aperture that contains the electronic adjusting air valve of the corresponding regulation of flue gas oxygen content signal of oxygen content sensor detection according to the flue gas. Can satisfy the air demand of each burning zone according to burning change developments, reduce smoke exhausting amount under the same load situation to reduce heat loss due to exhaust gas, practice thrift coal -firedly.
Description
Technical field
This utility model relates to boiler combustion equipment field, especially, relating to a kind of chain grate boiler air distribution and controlling device.
Additionally, this utility model further relates to a kind of chain grate boiler including that above-mentioned air distribution controls device.
Background technology
The fire coal of chain grate boiler is fallen on fire grate through coal bunker, with fire grate is by front rearward movement, while the mistake entirely that completes to burn
Journey, burning is divided into preheating and drying stage, combustion phases and after-flame cooling stage.Due to fire coal burning on fire grate length direction
Stage is different with combustion intensity, and oxygen-i.e. blow rate required that burning needs also differs, and therefore uses point storehouse air distribution of fire grate length direction,
Air is sent into the segmentation air compartment under fire grate by boiler blower and is entered in stove, and each air compartment is equipped with manual adjusting air valve.
In prior art, there is following defect in chain grate boiler:
1, manual adjusting air valve can not follow the tracks of the change of the quantity combusted on boiler grate at any time, and therefore chain grate boiler flue gas is oxygen-containing
Measure the most higher；
2, installing flue gas oxygen content sensor at furnace outlet and control boiler drum air quantity, the part stage being likely to result in burning zone contains
Oxygen amount is not enough, part excess, thus causes coal not burn completely.
Therefore, need a kind of air distribution being applicable to chain grate boiler of design badly and control device, to solve existing chain grate boiler
It is the most higher and only set at furnace outlet owing to flue gas oxygen content that the change of the quantity combusted on boiler grate causes can not be followed the tracks of in time
Put flue gas oxygen content sensor and control that the part burning zone oxygen content that causes of boiler drum air quantity is not enough, part excess, thus cause coal
Can not burn completely, efficiency of combustion is low, cigarette heat loss is big problem.
Utility model content
This utility model provides a kind of chain grate boiler air distribution and controls device and chain grate boiler, to solve existing chain
The flue gas oxygen content that bar furnace grate causes due to the change that can not follow the tracks of the quantity combusted on boiler grate in time is the most higher and only exists
Furnace outlet arranges flue gas oxygen content sensor and controls that the part burning zone oxygen content that causes of boiler drum air quantity is not enough, part excess,
Thus cause coal not burn completely, efficiency of combustion is low, cigarette heat loss is big technical problem.
The technical solution adopted in the utility model is as follows:
According to an aspect of the present utility model, it is provided that a kind of chain grate boiler air distribution controls device, including:
Boiler blower, is used for supplying boiler combustion required air；
Multiple distribution plenums, the fire grate length direction along chain grate boiler is arranged to supply burning required air, Duo Gepei stage by stage
Air compartment is communicated to the outlet of boiler blower through air distribution pipeline；
Multiple motorized adjustment air-valves, with distribution plenum one_to_one corresponding, enter the wind supply quantity of each distribution plenum for regulation through air distribution pipeline；
Multiple flue gas oxygen content sensors, with distribution plenum one_to_one corresponding, are used for detecting each distribution plenum positive top fire grate fired coal combustion and produce
The oxygen content of raw flue gas；
Controller, connects flue gas oxygen content sensor and motorized adjustment air-valve, for the cigarette according to the detection of flue gas oxygen content sensor
Gas oxygen content signal regulates the aperture of motorized adjustment air-valve accordingly.
Further, air distribution pipeline includes air distribution house steward and is communicated to the air distribution of each distribution plenum and is in charge of, and multiple air distributions are in charge of through joining
Wind house steward is communicated to the outlet of boiler blower, and motorized adjustment air-valve is arranged at corresponding air distribution and is in charge of.
Further, air distribution house steward being provided for detect in real time the pressure transducer of ventilation pressure in air distribution house steward, controller is even
Connect pressure transducer the air force of the pressure signal regulation boiler blower output according to pressure transducer detection.
Further, boiler blower uses transducer drive, and controller connects converter thus regulates boiler air blast through converter
The rotating speed of machine.
Further, controller uses PLC.
Further, multiple distribution plenums are positioned at below the fire grate of chain grate boiler and via through holes enters above fire grate.
Further, flue gas oxygen content sensor is fixedly arranged on boiler setting and is positioned at the position of center line of corresponding distribution plenum.
According to another aspect of the present utility model, also provide for a kind of chain grate boiler, including above-mentioned chain grate boiler with joining
Wind controls device.
Further, the fire grate of chain grate boiler is chain-belt type or louver stoker.
This utility model has the advantages that
This utility model chain grate boiler air distribution controls device and chain grate boiler, by arranging with multiple distribution plenums one by one
Corresponding motorized adjustment air-valve, flue gas oxygen content sensor and the controller for air distribution control, wherein, controller is according to flue gas
The flue gas oxygen content signal of oxygen content sensor detection regulates the aperture of motorized adjustment air-valve accordingly, it is possible to dynamic according to variation in combustion
Meet the air requirements of each burning zone, under same load situation, reduce exhaust smoke level, thus reduce heat loss due to exhaust gas, save combustion
Coal.
In addition to objects, features and advantages described above, this utility model also has other objects, features and advantages.
Below with reference to accompanying drawings, this utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing and being further appreciated by of the present utility model, of the present utility model schematically
Embodiment and explanation thereof are used for explaining this utility model, are not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation that this utility model preferred embodiment chain grate boiler air distribution controls device.
Description of reference numerals:
1, boiler blower；
2, air distribution pipeline；21, air distribution house steward；22, air distribution is in charge of；
3, distribution plenum；
4, motorized adjustment air-valve；
5, flue gas oxygen content sensor；
6, fire grate；
7, pressure transducer；
8, boiler rear arch；
9, boiler front arch.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Preferred embodiment of the present utility model provides a kind of chain grate boiler air distribution and controls device, with reference to Fig. 1, the present embodiment
Air distribution controls device and includes:
Boiler blower 1, is used for supplying boiler combustion required air；
Multiple distribution plenums 3, fire grate 6 length direction along chain grate boiler is arranged to supply burning required air stage by stage, multiple
Distribution plenum 3 is communicated to the outlet of boiler blower 1 through air distribution pipeline 2；
Multiple motorized adjustment air-valves 4, with distribution plenum 3 one_to_one corresponding, enter the confession of each distribution plenum 3 for regulation through air distribution pipeline 2
Air quantity；
Multiple flue gas oxygen content sensors 5, with distribution plenum 3 one_to_one corresponding, are used for detecting the fire grate fire coal combustion of each distribution plenum 3 positive top
Burn the oxygen content of the flue gas produced；
Controller, connects flue gas oxygen content sensor 5 and motorized adjustment air-valve 4, for detecting according to flue gas oxygen content sensor 5
Flue gas oxygen content signal regulate the aperture of motorized adjustment air-valve 4 accordingly.
When the present embodiment air distribution controls device work, each distribution plenum 3 uses motorized adjustment air-valve 4 to regulate air quantity, according to flue gas
The flue gas oxygen content signal of oxygen content sensor 5 feedback is adjusted, and when air distribution deficiency, sends in the air of distribution plenum 3
Oxygen is the most completely depleted, and flue gas oxygen content is low, and now controller strengthens motorized adjustment air-valve 4 aperture increases air feed
Amount；Otherwise, controller reduces motorized adjustment air-valve 4 aperture and reduces wind supply quantity, until motorized adjustment air-valve 4 cuts out.
The present embodiment is by arranging and multiple distribution plenums 3 motorized adjustment air-valve 4 one to one, flue gas oxygen content sensor 5 and use
In the controller that air distribution controls, wherein, the flue gas oxygen content signal that controller detects according to flue gas oxygen content sensor regulates accordingly
The aperture of motorized adjustment air-valve, it is possible to dynamically meet the air requirements of each burning zone according to variation in combustion, in same load situation
Lower minimizing exhaust smoke level, thus reduce heat loss due to exhaust gas, save fire coal.
Preferably, the present embodiment air distribution pipeline 2 includes air distribution house steward 21 and is communicated to the air distribution of each distribution plenum 3 and is in charge of 22, many
Individual air distribution is in charge of 22 outlets being communicated to boiler blower 1 through air distribution house steward 21, and motorized adjustment air-valve 4 is arranged at joins accordingly
Wind is in charge of on 22.By using this structure, the independent of the air quantity to each distribution plenum 3 can be reliably achieved and regulate, with according to reality
Border combustion conditions meets the oxygen-supplying amount demand of each combustion phases.
Alternatively, multiple distribution plenums 3 are positioned at below the fire grate 6 of chain grate boiler and via through holes enters above fire grate 6.Boiler
During work, coal drops down onto on fire grate 6 from coal bunker, enters the air needed for hearth combustion and enters burning zone from the through hole of each distribution plenum 3,
With oxygen supply needed for the coal combustion that supply is moved with fire grate 6.With reference to Fig. 1, the present embodiment burner hearth includes the boiler rear arch 8 being oppositely arranged
With boiler front arch 9, fire grate 6 moves under the effect of drive mechanism, thus drives coal thereon to burn stage by stage.
Alternatively, flue gas oxygen content sensor 5 is fixedly arranged on boiler setting and is positioned at the centrage position of corresponding distribution plenum 3
Put.Only arranging flue gas oxygen content sensor at furnace outlet relative to traditional, the present embodiment is by arranging and each distribution plenum pair
The flue gas oxygen content sensor answered, can detect the flue gas oxygen content situation of each combustion phases exactly.Specifically, flue gas contains
The setting height(from bottom) of oxygen amount sensor 5 can be designed according to boiler concrete structure, does not elaborates at this.
Preferably, the present embodiment controller uses PLC.The signal of flue gas oxygen content sensor 5 accesses PLC,
PLC controls corresponding motorized adjustment air-valve 4 according to the setting value of flue gas oxygen content with the oxygen content value of feedback that sensor is surveyed
Aperture, it is achieved being automatically adjusted of air distribution amount.It is highly preferred that be provided on air distribution house steward 21 detecting air distribution house steward 21 in real time
The pressure transducer 7 of interior ventilation pressure, PLC connects pressure transducer 7 the pressure letter according to pressure transducer 7 detection
Number regulation boiler blower 1 output air force.The present embodiment, alternatively, boiler blower 1 uses transducer drive,
PLC connects converter thus regulates the rotating speed of boiler blower 1 through converter.Specifically, the pressure of pressure transducer 7
Force value input is adjusted to PLC, PLC according to the pressure set points of air main and the pressure feedback value of sensor actual measurement
Joint blower variable frequency device, thus regulate the rotating speed of boiler blower 1.
According to another aspect of the present utility model, also provide for a kind of chain grate boiler, including the traveling-grate stoker pot of above-described embodiment
Stove air distribution controls device.The fire grate 6 of the present embodiment chain grate boiler is chain-belt type or louver stoker.
From above description it is known that the present embodiment is by arranging and multiple distribution plenums motorized adjustment air-valve, cigarette one to one
Gas oxygen content sensor and the controller controlled for air distribution, wherein, the flue gas that controller detects according to flue gas oxygen content sensor
Oxygen content signal regulates the aperture of motorized adjustment air-valve accordingly, it is possible to dynamically meet the air need of each burning zone according to variation in combustion
Ask, under same load situation, reduce exhaust smoke level, thus reduce heat loss due to exhaust gas, reduce cinder phosphorus content, save fire coal.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this area
For technical staff, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, institute
Any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (9)
1. a chain grate boiler air distribution controls device, it is characterised in that including:
Boiler blower (1), is used for supplying boiler combustion required air；
Multiple distribution plenums (3), fire grate (6) length direction along described chain grate boiler is arranged to supply burning stage by stage
Required air, the plurality of distribution plenum (3) is communicated to the outlet of described boiler blower (1) through air distribution pipeline (2)；
Multiple motorized adjustment air-valves (4), with described distribution plenum (3) one_to_one corresponding, are used for regulation through air distribution pipeline (2)
Enter the wind supply quantity of each distribution plenum (3)；
Multiple flue gas oxygen content sensors (5), with described distribution plenum (3) one_to_one corresponding, are used for detecting each distribution plenum (3)
The oxygen content of the flue gas that positive top fire grate fired coal combustion produces；
Controller, connects described flue gas oxygen content sensor (5) and described motorized adjustment air-valve (4), for according to described
The flue gas oxygen content signal that flue gas oxygen content sensor (5) detects regulates the aperture of described motorized adjustment air-valve (4) accordingly.
Chain grate boiler air distribution the most according to claim 1 controls device, it is characterised in that
Described air distribution pipeline (2) includes air distribution house steward (21) and is communicated to the air distribution of each distribution plenum (3) and is in charge of (22),
Multiple described air distributions are in charge of (22) and are communicated to the outlet of described boiler blower (1), institute through described air distribution house steward (21)
State motorized adjustment air-valve (4) to be arranged at corresponding described air distribution and be in charge of on (22).
Chain grate boiler air distribution the most according to claim 2 controls device, it is characterised in that
The pressure being provided for detecting in real time the interior ventilation pressure of described air distribution house steward (21) on described air distribution house steward (21) passes
Sensor (7), described controller connects described pressure transducer (7) the pressure detected according to described pressure transducer (7)
Force signal regulates the air force that described boiler blower (1) exports.
Chain grate boiler air distribution the most according to claim 3 controls device, it is characterised in that
Described boiler blower (1) uses transducer drive, and described controller connects described converter thus through described frequency conversion
Device regulates the rotating speed of described boiler blower (1).
Chain grate boiler air distribution the most according to claim 4 controls device, it is characterised in that
Described controller uses PLC.
6. control device according to the arbitrary described chain grate boiler air distribution of claim 1 to 5, it is characterised in that
Multiple described distribution plenums (3) are positioned at fire grate (6) lower section and the via through holes described stove of entrance of described chain grate boiler
Row (6) top.
7. control device according to the arbitrary described chain grate boiler air distribution of claim 1 to 5, it is characterised in that
Described flue gas oxygen content sensor (5) is fixedly arranged on boiler setting and is positioned in corresponding distribution plenum (3)
Heart line position.
8. a chain grate boiler, it is characterised in that include that the chain grate boiler as described in claim 1 to 7 is arbitrary is with joining
Wind controls device.
Chain grate boiler the most according to claim 8, it is characterised in that
The fire grate (6) of described chain grate boiler is chain-belt type or louver stoker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620278631.4U CN205535935U (en) | 2016-04-06 | 2016-04-06 | Air distribution controlling means and traveling grate boiler for traveling grate boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620278631.4U CN205535935U (en) | 2016-04-06 | 2016-04-06 | Air distribution controlling means and traveling grate boiler for traveling grate boiler |
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| Publication Number | Publication Date |
|---|---|
| CN205535935U true CN205535935U (en) | 2016-08-31 |
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ID=57142351
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620278631.4U Active CN205535935U (en) | 2016-04-06 | 2016-04-06 | Air distribution controlling means and traveling grate boiler for traveling grate boiler |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838978A (en) * | 2016-12-26 | 2017-06-13 | 包光华 | A kind of chain-grate boiler wind pushing mechanism |
| CN107062301A (en) * | 2017-01-20 | 2017-08-18 | 钟祥市应强纸业有限公司 | A kind of boiler blower system |
| CN107448970A (en) * | 2017-08-14 | 2017-12-08 | 山东天力节能环保工程有限公司 | Boiler room |
| CN107842871A (en) * | 2016-09-19 | 2018-03-27 | 刘胜民 | (sending) wind system is roused in coal-fired chain grate boiler distribution frequency conversion |
| CN108980818A (en) * | 2018-06-07 | 2018-12-11 | 北京奥科瑞丰节能技术有限公司 | The chain grate biomass boiler and control method of nitrogen oxides low emission |
| CN110500595A (en) * | 2019-07-17 | 2019-11-26 | 光大常高新环保能源(常州)有限公司 | A method of suitable for Martin furnace waste incineration air distribution |
-
2016
- 2016-04-06 CN CN201620278631.4U patent/CN205535935U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842871A (en) * | 2016-09-19 | 2018-03-27 | 刘胜民 | (sending) wind system is roused in coal-fired chain grate boiler distribution frequency conversion |
| CN106838978A (en) * | 2016-12-26 | 2017-06-13 | 包光华 | A kind of chain-grate boiler wind pushing mechanism |
| CN107062301A (en) * | 2017-01-20 | 2017-08-18 | 钟祥市应强纸业有限公司 | A kind of boiler blower system |
| CN107448970A (en) * | 2017-08-14 | 2017-12-08 | 山东天力节能环保工程有限公司 | Boiler room |
| CN108980818A (en) * | 2018-06-07 | 2018-12-11 | 北京奥科瑞丰节能技术有限公司 | The chain grate biomass boiler and control method of nitrogen oxides low emission |
| CN110500595A (en) * | 2019-07-17 | 2019-11-26 | 光大常高新环保能源(常州)有限公司 | A method of suitable for Martin furnace waste incineration air distribution |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |