CN201306732Y - A bioler coal feeding and input air synchronization intelligence control system - Google Patents
A bioler coal feeding and input air synchronization intelligence control system Download PDFInfo
- Publication number
- CN201306732Y CN201306732Y CNU2008201806513U CN200820180651U CN201306732Y CN 201306732 Y CN201306732 Y CN 201306732Y CN U2008201806513 U CNU2008201806513 U CN U2008201806513U CN 200820180651 U CN200820180651 U CN 200820180651U CN 201306732 Y CN201306732 Y CN 201306732Y
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- Prior art keywords
- boiler
- coal
- frequency converter
- control system
- air
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- Expired - Fee Related
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Abstract
The utility model discloses a bioler coal feeding and input air synchronization intelligence control system which comprises a grate motor inverter (1), a electric motor (4) and a electromagnetic clutch (5), characterized in that a fan motor inverter (2) and a blower motor inverter (3), wherein the grate motor inverter (1) is a controller which connects the fan motor inverter (2). the utility model maintains appropriate air factor, guaranties secure burning and reaches input air changing following variation of coal feed volume, reaches optimum wind and coal proportionality, thereby saves 15%-20% on original electricity economizer basis; enhances automatization degree, reduces impact to boiler burning by anthropogenic factor, stops the boiler from producing black smoke and reduces excess air, drops smoke discharge volume down to bottom, reduces thermal loss of boiler, lowers load of a dust wiper, controls smoke gas blackness within Ringelmann grade 1 stably, realizes dual function of energy saving and environmental protection. Because boiler burning always in constant micro negative-pressure state, hence flue gas coming outside phenomenon because of normal pressure burning by the boiler is avoided, therefore boiler air quality can be improved thoroughly, and working atmosphere condition of boiler operating staff is improved thoroughly.
Description
Technical field
The utility model relates to boiler and advances coal and air quantity control system, belongs to the production energy-saving field.
Background technology
At present, traditional boiler control mode, owing to changing, furnace temperature waits otherwise reason greatly, cause furnace wall, boiler tube, drum and weld bond knot ash, coking easily, cause flue to stop up, thereby reduced the efficient of blower fan, increased the blower fan load, cause economizer and air preheater to damage, stop up, reduced furnace tube heat transfer efficient, increased the equipment operation troubles.Conventional boiler control scheme is to allow motor operation at full speed from the beginning, then by artificial or with the output of adjuster, regulate the windshield plate of drum, air-introduced machine and carries out manual adjustment and control the blow rate required and air inducing amount through amplifying the control actuator.Several stages such as the burning of coal process roughly is divided into preheating, drying, catch fire, burn, coal is different at each stage required airflow, has only reasonable adjusting intake and coal input quantity, just can reach reasonable sufficient combustion burning, the electricity consumption that practices every conceivable frugality, coal.Under anoxia condition, coal can not fully burn, and carbon content height in the ashes causes the waste of coal; Otherwise excessive as air output, a large amount of Cryogenic air enter burner hearth, and a large amount of heat energy are discharged through flue, the cigarette temperature rise, and coefficient of excess air increases, and heat loss strengthens, and can cause the waste of electricity, coal too.The utility model has been broken through traditional boiler control system, has filled up the blank in this field.
The utility model content
The utility model has overcome technical problem, provide a kind of selection variable-frequency governor to use as actuator, frequency converter is directly controlled in the output of fire grate controller, change motor electricity consumption frequency, thereby the change motor speed is regulated the blow rate required and air inducing amount automatically, thereby changes the motor running frequency, power of motor consumption also decreases, and realizes the significantly control system of saves energy.Technical problem to be solved in the utility model is achieved through the following technical solutions:
A kind of boiler advances coal and the synchronous intelligence control system of air quantity, comprises fire grate frequency converter, motor, electromagnetic clutch, also comprises id-motor frequency converter and blower motor frequency converter; Described fire grate frequency converter is a controller, connects the id-motor frequency converter.
Motor links to each other with electromagnetic clutch.
The id-motor frequency converter connects the blower motor frequency converter.
The fire grate frequency converter connects tachometer generator.
Electromagnetic clutch links to each other with the fire grate frequency converter by solenoid.
Owing to adopt technique scheme, the utility model has the advantages that: the utility model has been kept suitable coefficient of excess air, safety, energy-saving combustion had both been guaranteed, over-emitting black exhaust has not reduced excess air again, make the smoke evacuation total amount drop to minimum level, reduced the heat loss of boiler, reduced the load of deduster, blackness of exhaustion can be stablized and is controlled in the Lin Geman one-level, has realized energy-conservation and dual usefulness environmental protection.Because the boiler combustion operation is in operation under the constant micro-vacuum state all the time, avoided boiler and emitted phenomenon outward owing to the flue gas that pressure combustion causes occurs, thereby thoroughly improved the air quality of boiler room, boiler attendance personnel's working environment obtains basic improvement.
Description of drawings
Fig. 1 is the structural representation of slip electric motor for the utility model fire grate;
Fig. 2 is the structural representation of common electric machine for the utility model fire grate.
The specific embodiment
According to Fig. 1, fire grate is a slip electric motor, analog quantity input with 4～20mADC current signal (or 0～10V voltage signal) control air-introduced machine frequency converter of the output of slip electric motor controller, control the analog quantity input of blower variable frequency device again by 0～10V voltage signal of air-introduced machine frequency converter output, two are carried out Synchronization Control, discrete control becomes interlock control, control the burning of boiler, when fire grate speed need be accelerated like this, the output signal of slip electric motor controller will strengthen, thereby interlock has been controlled the speed of air-introduced machine and will have been accelerated, air quantity improves, the speed of air blast also can increase thereupon, improves fire box temperature rapidly, accelerates burning velocity and quality.When boiler pressure reached requirement, during the fire grate reduction of speed, reduction of speed when asynchronous, was adjusted slightly with micromatic setting simultaneously, gets final product safe operation.
According to Fig. 2, fire grate is the plain edition motor, (0～10V) controls the input of air-introduced machine frequency converter, controls the input of blower variable frequency device by the output of air-introduced machine frequency converter, in this way the three is linked with the output signal of fire grate frequency converter.When coal input quantity increased, the speed of air blast, air-introduced machine increased thereupon, and coal is fully burnt, and the pressure of boiler rises rapidly.When coal input quantity reduced, the speed of blower fan reduced, and reached the purpose of the economize on electricity of economizing on coal.
Claims (5)
1, a kind of boiler advances coal and the synchronous intelligence control system of air quantity, comprises fire grate frequency converter (1), motor (4), electromagnetic clutch (5), it is characterized in that: also comprise id-motor frequency converter (2) and blower motor frequency converter (3); Described fire grate frequency converter (1) is a controller, connects id-motor frequency converter (2).
2, advance coal and the synchronous intelligence control system of air quantity according to claim 1 boiler, it is characterized in that: described motor (4) links to each other with electromagnetic clutch (5).
3, advance coal and the synchronous intelligence control system of air quantity according to claim 1 boiler, it is characterized in that: described id-motor frequency converter (2) connects blower motor frequency converter (3).
4, advance coal and the synchronous intelligence control system of air quantity according to claim 1 boiler, it is characterized in that: described fire grate frequency converter (1) connects tachometer generator (7).
5, advance coal and the synchronous intelligence control system of air quantity according to claim 1 boiler, it is characterized in that: described electromagnetic clutch (5) links to each other with fire grate frequency converter (1) by solenoid (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201806513U CN201306732Y (en) | 2008-12-05 | 2008-12-05 | A bioler coal feeding and input air synchronization intelligence control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201806513U CN201306732Y (en) | 2008-12-05 | 2008-12-05 | A bioler coal feeding and input air synchronization intelligence control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306732Y true CN201306732Y (en) | 2009-09-09 |
Family
ID=41099197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201806513U Expired - Fee Related CN201306732Y (en) | 2008-12-05 | 2008-12-05 | A bioler coal feeding and input air synchronization intelligence control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306732Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240868A (en) * | 2015-11-05 | 2016-01-13 | 哈尔滨汇通电力工程有限公司 | Boiler automatic combustion adjustment control method based on coal-air ratio coal quality correction |
| CN111380073A (en) * | 2018-12-28 | 2020-07-07 | 庆东纳碧安株式会社 | Boiler and combustion control method for boiler |
-
2008
- 2008-12-05 CN CNU2008201806513U patent/CN201306732Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240868A (en) * | 2015-11-05 | 2016-01-13 | 哈尔滨汇通电力工程有限公司 | Boiler automatic combustion adjustment control method based on coal-air ratio coal quality correction |
| CN105240868B (en) * | 2015-11-05 | 2017-10-03 | 哈尔滨汇通电力工程有限公司 | Boiler automatic combustion adjustment control method based on coal-air ratio coal correction |
| CN111380073A (en) * | 2018-12-28 | 2020-07-07 | 庆东纳碧安株式会社 | Boiler and combustion control method for boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Ji Guozhong Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20141205 |
|
| EXPY | Termination of patent right or utility model |