CN202153014U - Powder coal charge control instrument - Google Patents
Powder coal charge control instrument Download PDFInfo
- Publication number
- CN202153014U CN202153014U CN2011202592320U CN201120259232U CN202153014U CN 202153014 U CN202153014 U CN 202153014U CN 2011202592320 U CN2011202592320 U CN 2011202592320U CN 201120259232 U CN201120259232 U CN 201120259232U CN 202153014 U CN202153014 U CN 202153014U
- Authority
- CN
- China
- Prior art keywords
- coal dust
- controller
- tachogenerator
- load cell
- control section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a powder coal charge control instrument which comprises a weight measurement part, a speed measurement part and a control part. The powder coal charge control instrument provided by the utility model can control the rotational speed of a motor in a powder coal convey device conveying the powder coal to a boiler according to the instant electricity consumption of a power network control system, so as to control the coal charge speed of the boiler and ensure the balance between the electricity output and the electricity consumption of the power network to avoid waste. Besides, the powder coal charge control instrument has the advantages of simple structure, low manufacturing cost, and high control precision.
Description
Technical field
The utility model discloses a kind of control device, be specifically related to a kind of boiler of power plant that is used for, can be according to the reinforced controller of coal dust of instant power consumption adjustment coal dust addition in the electrical network.
Background technology
Coal-fired power plant; Be the factory that utilizes coal to act as a fuel to produce electric energy, its basic process of production is: coal dust burns in boiler and adds hot water and make into steam, and the chemical energy of fuel is transformed into heat energy; The rotation of steam pressure pushing turbine; Thermal power transfer becomes mechanical energy, and steam turbine drives the generator rotation then, and mechanical energy is transformed into electric energy.Therefore, add the generated energy that the amount of coal dust can corresponding power plant in the boiler.
Boiler feeding now commonly used is constant, and promptly the generated energy of power plant is constant in a period of time, changes at any time but the power consumption of electric network terminal is a operating position according to the user.For guaranteeing user's power consumption, the generated energy of power plant is greater than the power consumption of electric network terminal, so just produces waste inevitably.Thereby, in energy-intensive today, need a kind of device badly, can be according to instant power consumption adjustment coal dust addition in the electrical network.
The utility model content
To above-mentioned defective, the utility model purpose provides a kind of controller that can feed in raw material according to the coal dust of instant power consumption adjustment coal dust addition in the electrical network.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of coal dust controller that feeds in raw material, the reinforced controller of said coal dust electrically connects with a grid control system and coal dust transport, the reinforced controller of said coal dust comprise check weighing partly, test the speed partly and control section,
Said check weighing partly comprises load cell, and said load cell and control section electrically connect, and pressure is changed into the signal of telecommunication and is transferred to control section;
The said part that tests the speed comprises tachogenerator, and said tachogenerator and control section electrically connect, and speed is changed into the signal of telecommunication and is transferred to control section;
Said control section comprises signal amplification unit, information process unit and control module,
Said signal amplification unit electrically connects with said load cell, tachogenerator and information process unit respectively, the signal of telecommunication amplification that will receive from load cell and tachogenerator, and be transferred to information process unit;
Said information process unit electrically connects with signal amplification unit, control module and grid control system respectively, and the signal that signal amplification unit, grid control system are imported calculates, and the result is input to control module;
Said control module electrically connects with information process unit and coal dust transport respectively.
In a kind of preferred embodiment of the utility model; Said coal dust transport comprises conveyer belt and carries motor; Said conveying motor and control module electrically connect, and said load cell is installed on said conveyer belt below, and said tachogenerator is installed on carries the motor place.
In a kind of preferred embodiment of the utility model, the said part that tests the speed comprises two and plural load cell.
In a kind of preferred embodiment of the utility model, said tachogenerator is a light sensor.
In a kind of preferred embodiment of the utility model, the reinforced controller of said coal dust also comprises the display part that electrically connects with control section.
The coal dust of the utility model controller that feeds in raw material; Can be according to the instantaneous power consumption in the grid control system, control is transported to the motor speed of the coal dust transport of boiler, thus the coal speed in the control boiler; Make the generated energy in the electrical network equal power consumption, put and end to waste.The utility model the reinforced controller of coal dust, simple in structure, low cost of manufacture, control accuracy are high.
Description of drawings
Fig. 1 is the structured flowchart of a kind of preferred embodiment of the reinforced controller of the utility model coal dust.
Wherein 1 is the check weighing part, and 2 are the part that tests the speed, and 3 is control section, and 4 is the display part.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection domain of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.
As shown in Figure 1, the reinforced controller of the coal dust of the utility model comprises check weighing part 1, the part that tests the speed 2, control section 3 and display part 4.
Wherein, control section 3 comprises signal amplification unit, information process unit and control module.
Coal dust transport commonly used mainly comprises conveyer belt and carries motor, carries motor that driving force is provided, and drives conveyer belt and travels forward, and coal dust is placed on the conveyer belt.
Check weighing part 1 comprises the load cell of the below that is positioned over conveyer belt, and load cell and signal amplification unit electrically connect, and pressure is changed into the signal of telecommunication and is transferred to signal amplification unit.For guaranteeing the accuracy of check weighing, can adopt two or more load cells.
The said part 2 that tests the speed comprises the tachogenerator that is positioned over conveying motor place, and tachogenerator and signal amplification unit electrically connect, and the rotary speed of carrying rotor is changed into the signal of telecommunication and is transferred to signal amplification unit.Tachogenerator preferably adopts light sensor.
Signal amplification unit electrically connects with said load cell, tachogenerator and information process unit respectively, the signal of telecommunication amplification that will receive from load cell and tachogenerator, and be transferred to information process unit.
A reinforced controller of the coal dust of the utility model and a grid control system electrically connect.
Information process unit electrically connects with signal amplification unit, control module, grid control system and display part 4 respectively; The information of signal amplification unit and grid control system input is calculated; Result of calculation is input to control module, and relevant information is input to display part 4.
Control module electrically connects with the conveying motor of information process unit and coal dust transport respectively, controls the conveying rotating speed of motor according to the result of information process unit input.
Display part 4 comprises display, and display and information process unit electrically connect, and can show information such as instant coal consumption, instant power consumption and conveying motor speed as required.
The course of work of the reinforced controller of the coal dust of the utility model: grid control system is transferred to information process unit with the instantaneous power consumption information of electrical network; Information process unit calculates required expectation coal consumption according to formula; The actual coal consumption that calculates with the instant messages that is transmitted by load cell and tachogenerator again compares, and comparing result is transferred to control module.If actual coal consumption is greater than estimating coal consumption, control module control carries motor to slow down rotating speed, reduces coal speed, reduces coal consumption to actual coal consumption and equals to estimate coal consumption; If actual coal consumption is less than estimating coal consumption, then control module control carries motor to increase rotating speed, improves coal speed, increases coal consumption to actual coal consumption and equals to estimate coal consumption.
The above; Be merely the specific embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the utility model disclosed, and variation or the replacement that can expect without creative work all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain that claims were limited.
Claims (5)
1. the reinforced controller of a coal dust, the reinforced controller of said coal dust electrically connects with a grid control system and coal dust transport, it is characterized in that, the reinforced controller of said coal dust comprise check weighing partly, test the speed partly and control section,
Said check weighing partly comprises load cell, and said load cell and control section electrically connect, and pressure is changed into the signal of telecommunication and is transferred to control section;
The said part that tests the speed comprises tachogenerator, and said tachogenerator and control section electrically connect, and speed is changed into the signal of telecommunication and is transferred to control section;
Said control section comprises signal amplification unit, information process unit and control module,
Said signal amplification unit electrically connects with said load cell, tachogenerator and information process unit respectively, the signal of telecommunication amplification that will receive from load cell and tachogenerator, and be transferred to information process unit;
Said information process unit electrically connects with signal amplification unit, control module and grid control system respectively, and the signal that signal amplification unit, grid control system are imported calculates, and the result is input to control module;
Said control module electrically connects with information process unit and coal dust transport respectively.
2. the coal dust according to claim 1 controller that feeds in raw material; It is characterized in that; Said coal dust transport comprises conveyer belt and carries motor; Said conveying motor and control module electrically connect, and said load cell is installed on said conveyer belt below, and said tachogenerator is installed on carries the motor place.
3. the coal dust according to claim 1 controller that feeds in raw material is characterized in that, the said part that tests the speed comprises two and plural load cell.
4. the coal dust according to claim 1 controller that feeds in raw material is characterized in that said tachogenerator is a light sensor.
5. the coal dust according to claim 1 controller that feeds in raw material is characterized in that, the reinforced controller of said coal dust also comprises the display part that electrically connects with control section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202592320U CN202153014U (en) | 2011-07-21 | 2011-07-21 | Powder coal charge control instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202592320U CN202153014U (en) | 2011-07-21 | 2011-07-21 | Powder coal charge control instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202153014U true CN202153014U (en) | 2012-02-29 |
Family
ID=45693510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202592320U Withdrawn - After Issue CN202153014U (en) | 2011-07-21 | 2011-07-21 | Powder coal charge control instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202153014U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252341A (en) * | 2011-07-21 | 2011-11-23 | 苏州市新虞仪表成套设备有限公司 | Pulverized coal charging controller |
| CN106556026A (en) * | 2015-09-30 | 2017-04-05 | 邸生才 | Air delivery pipe coal dust weight measurement instrument and multiple pipelines are balanced for powder control system |
-
2011
- 2011-07-21 CN CN2011202592320U patent/CN202153014U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252341A (en) * | 2011-07-21 | 2011-11-23 | 苏州市新虞仪表成套设备有限公司 | Pulverized coal charging controller |
| CN102252341B (en) * | 2011-07-21 | 2013-01-09 | 苏州市新虞仪表成套设备有限公司 | Pulverized coal charging controller |
| CN106556026A (en) * | 2015-09-30 | 2017-04-05 | 邸生才 | Air delivery pipe coal dust weight measurement instrument and multiple pipelines are balanced for powder control system |
| CN106556026B (en) * | 2015-09-30 | 2019-10-11 | 邸生才 | Air delivery pipe coal dust weight measurement instrument and multiple pipeline equilibrium powder supply control systems |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120229 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |