CN201715548U - Intelligent oxygen content optimizing and regulating device for coal-fired industrial boiler - Google Patents
Intelligent oxygen content optimizing and regulating device for coal-fired industrial boiler Download PDFInfo
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- CN201715548U CN201715548U CN2010202926261U CN201020292626U CN201715548U CN 201715548 U CN201715548 U CN 201715548U CN 2010202926261 U CN2010202926261 U CN 2010202926261U CN 201020292626 U CN201020292626 U CN 201020292626U CN 201715548 U CN201715548 U CN 201715548U
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- oxygen content
- regulating device
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Abstract
The utility model discloses an intelligent oxygen content optimizing and regulating device for a coal-fired industrial boiler, the device is provided with an exhaust smoke oxygen content detection device, an intelligent oxygen content regulating device, a grate rotational speed regulator and a forced and induced draft fan opening degree variable frequency regulation device, wherein a programmable logic controller is respectively connected with the exhaust smoke oxygen content detection device and the intelligent oxygen content regulating device, and the intelligent oxygen content regulating device is respectively connected with the grate rotational speed regulator and the forced and induced draft fan opening degree variable frequency regulation device. The device has the advantages of being capable of keeping the oxygen content in exhaust smoke in optimal state, reducing the heat loss of the exhaust smoke and having the effects of low-carbon, emission reduction, energy conservation and consumption reduction by taking the detected oxygen content in exhaust smoke, the temperature of a furnace chamber and the temperature of the exhaust smoke as basis, optimizing data obtained by a computing module and applying the programmable logic controller to regulate the rotational speed of a grate and control the opening degree of a forced and induced draft fan variable frequency device.
Description
Technical field
The utility model relates to a kind of coal-burned industrial boiler intelligence oxygen amount and optimizes adjusting device, is used for that the smoke evacuation oxygen amount of coal-burned industrial boiler burning is carried out the intelligent optimization operation and regulates.
Background technology
During coal-burned industrial boiler operation, enter the impossible completing combustion of fuel of burner hearth, the loss that unburned combustible component is amounted to is called the imperfect combustion heat loss of boiler, stove fuel combustion institute liberated heat also can not all be used effectively, the heat that has is discharged from stove outer flue gas, lime-ash and takes away, and what have then loses through furnace wall, annex, this shows, have various heat loss in the boiler operatiopn, wherein flue gas loss is one of main heat loss of boiler.A key factor that influences heat loss due to exhaust gas is a flue gas volume.
Flue gas volume increases (being that the boiler exhaust gas excess air coefficient increases), and heat loss due to exhaust gas increases, and 0.15 exhaust gas heat loss of the smoke evacuation every increase of excess air coefficient fails to keep an appointment and increases by 1 percentage point, and smoke evacuation oxygen amount is to calculate the key parameter of smoke evacuation excess air coefficient.Smoke evacuation oxygen amount is too small, and fuel combustion is incomplete, slag, the high boiler combustion efficiency that influences of unburned carbon in flue dust, and smoke evacuation oxygen amount is excessive, and fuel combustion is complete but the flue gas volume increase makes the heat loss due to exhaust gas increase influence boiler combustion efficiency equally.Therefore, the oxygen amount of how to regulate rightly in the boiler smoke is moved for the realization high efficiency boiler, reduces slag and unburned carbon in flue dust and has important and practical meanings.
Because therefore the importance that flue gas oxygen amount is regulated in the boiler operatiopn, be necessary that developing a kind of optimization device specially is optimized adjusting to intelligent oxygen amount.
The utility model content
Technical problem to be solved in the utility model is, provide a kind of coal-burned industrial boiler intelligence oxygen amount to optimize adjusting device, can be optimized adjusting to key operation parameters such as fire grate rotating speed, drum air inducing amounts according to parameters such as exhaust smoke level oxygen amount, fire box temperature, exhaust gas temperatures.
The utility model solves the problems of the technologies described above by following technical proposal:
A kind of coal-burned industrial boiler intelligence oxygen amount is optimized adjusting device, this device is provided with a smoke evacuation oxygen amount detecting device, intelligent oxygen quantity regulating device, fire grate speed regulator and forced-and-induced draft fan aperture variable frequency adjustment device, one Programmable Logic Controller is connected with intelligent oxygen quantity regulating device with smoke evacuation oxygen amount detecting device respectively, and intelligent oxygen quantity regulating device is connected with forced-and-induced draft fan aperture variable frequency adjustment device with the fire grate speed regulator respectively.
Described smoke evacuation oxygen amount detecting device is installed in apart from 5～7m place, fire grate speed regulator surface, gos deep into 0.5m in the furnace wall, and with furnace wall inclination miter angle.
To the discharge fume parameter of detection signal, fire box temperature and exhaust gas temperature of oxygen amount detecting device of described intelligent oxygen quantity regulating device inputs to the optimization computing module, calculate best fire grate tachometer value and best bulging air inducing value, regulate fire grate rotating speed and control forced-and-induced draft fan aperture.
The utility model has the advantages that, with detected smoke evacuation oxygen amount, fire box temperature and exhaust gas temperature is foundation, by optimizing the data that computing module calculates, use Programmable Logic Controller and regulate fire grate rotating speed and control forced-and-induced draft fan converter plant aperture, make smoke evacuation oxygen amount remain on optimum state, reduce heat loss due to exhaust gas, have low carbon emission reduction and energy-saving and cost-reducing effect.
Description of drawings
Fig. 1 is a block diagram of the present utility model;
Fig. 2 is an overall structure schematic diagram of the present utility model;
Fig. 3 is intelligent oxygen quantity regulating device block diagram;
Fig. 4 is a control flow chart able to programme.
The specific embodiment
As Fig. 1-shown in Figure 4, a kind of coal-burned industrial boiler intelligence oxygen amount is optimized adjusting device, this device is provided with a smoke evacuation oxygen amount detecting device 8, intelligent oxygen quantity regulating device 4, fire grate speed regulator 7 and forced-and-induced draft fan aperture variable frequency adjustment device 6, one Programmable Logic Controller 3 is connected with smoke evacuation oxygen amount detecting device 8 and intelligent oxygen quantity regulating device 4 respectively, and intelligent oxygen quantity regulating device 4 is connected with forced-and-induced draft fan aperture variable frequency adjustment device 6 with fire grate speed regulator 5 respectively.
More accurate for the measurement that makes smoke evacuation oxygen concentration 1, described smoke evacuation oxygen amount detecting device 8 is installed in apart from 5～7m place, fire grate speed regulator 7 surfaces, gos deep into the interior 0.5m of furnace wall, and with furnace wall inclination miter angle.
To the discharge fume parameter of detection signal, fire box temperature and exhaust gas temperature of oxygen amount detecting device 8 of described intelligent oxygen quantity regulating device 4 inputs to the optimization computing module, calculate best fire grate tachometer value and best bulging air inducing value, regulate fire grate rotating speed and control forced-and-induced draft fan aperture.
Oxygen measurement trial assembly is put sensor signal and is connected signal transmitting device 2 and programmable logic controller (PLC) 3 successively as main feedback signal, finally calculate and regulate forced-and-induced draft fan aperture variable frequency adjustment device 6 and fire grate speed regulator 5 by intelligent adjustment module, regulate forced-and-induced draft fan aperture and fire grate rotating speed, guarantee the optimum coal-air ratio of combustion conditions, realize the optimization energy-saving run of coal-burned industrial boiler.
Claims (2)
1. a coal-burned industrial boiler intelligence oxygen amount is optimized adjusting device, it is characterized in that: this device is provided with a smoke evacuation oxygen amount detecting device, intelligent oxygen quantity regulating device, fire grate speed regulator and forced-and-induced draft fan aperture variable frequency adjustment device, one Programmable Logic Controller is connected with intelligent oxygen quantity regulating device with smoke evacuation oxygen amount detecting device respectively, and intelligent oxygen quantity regulating device is connected with forced-and-induced draft fan aperture variable frequency adjustment device with the fire grate speed regulator respectively.
2. optimize adjusting device by the described coal-burned industrial boiler of claim 1 intelligence oxygen amount, it is characterized in that: described smoke evacuation oxygen amount detecting device is installed in apart from 5～7m place, fire grate speed regulator surface, gos deep into the interior 0.5m of furnace wall, and with furnace wall inclination miter angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202926261U CN201715548U (en) | 2010-08-16 | 2010-08-16 | Intelligent oxygen content optimizing and regulating device for coal-fired industrial boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202926261U CN201715548U (en) | 2010-08-16 | 2010-08-16 | Intelligent oxygen content optimizing and regulating device for coal-fired industrial boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201715548U true CN201715548U (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202926261U Expired - Fee Related CN201715548U (en) | 2010-08-16 | 2010-08-16 | Intelligent oxygen content optimizing and regulating device for coal-fired industrial boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201715548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047677A (en) * | 2012-12-26 | 2013-04-17 | 淮安万邦香料工业有限公司 | Combustion gang control method for boiler |
| CN103512378A (en) * | 2013-10-17 | 2014-01-15 | 广西铁合金有限责任公司 | Smoke amount measuring and control device and smoke amount measuring and control method of semi-closed ferroalloy submerged arc furnace |
-
2010
- 2010-08-16 CN CN2010202926261U patent/CN201715548U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047677A (en) * | 2012-12-26 | 2013-04-17 | 淮安万邦香料工业有限公司 | Combustion gang control method for boiler |
| CN103047677B (en) * | 2012-12-26 | 2015-04-22 | 淮安万邦香料工业有限公司 | Combustion gang control method for boiler |
| CN103512378A (en) * | 2013-10-17 | 2014-01-15 | 广西铁合金有限责任公司 | Smoke amount measuring and control device and smoke amount measuring and control method of semi-closed ferroalloy submerged arc furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20120816 |