CN107676285A - A kind of frequency conversion control device for annular cooling blower and method - Google Patents
A kind of frequency conversion control device for annular cooling blower and method Download PDFInfo
- Publication number
- CN107676285A CN107676285A CN201710915188.6A CN201710915188A CN107676285A CN 107676285 A CN107676285 A CN 107676285A CN 201710915188 A CN201710915188 A CN 201710915188A CN 107676285 A CN107676285 A CN 107676285A
- Authority
- CN
- China
- Prior art keywords
- control unit
- control
- air blower
- frequency
- heat dissipation
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/303—Temperature
Abstract
The invention discloses a kind of frequency conversion control device for annular cooling blower, including material probe unit, control unit, remote control unit, frequency converter, air blower, and the frequency conversion control method of annular cooling air blower according to the device, technical solution of the present invention realizes automation and the remote control of frequency conversion annular cooling air blower, while reduces energy resource consumption.
Description
Technical field
The present invention relates to field of steel production, specially a kind of frequency conversion control device for annular cooling blower and method.
Background technology
In steel production, iron-bearing material ore needs to handle by sintering system before entering blast furnace process.Sintering is
Various powdery iron-containing raw materials are incorporated to appropriate fuel and flux, is burnt after blended and pelletizing on pallet, makes material
Generation a series of physical chemical change, mineral powder granular is cohered into the process for the block easily smelted.Annular cooling air blower is that ring type is cold
But machine, it is used to carry out air blast cooling to the sintering deposit obtained after sintering in smelting, as annular cooling air blower main working parts
Air blower in smelting process power consumption it is very big, in order to ensure cooling effect, air blower is typically all at full capacity
Operating condition, the blow rate required is often bigger than what is be actually needed, result in the waste of the energy, and prior art is most still
Operating personnel's on-site supervision so is needed, can not still reach the purpose of remote control.
The content of the invention
The present invention provides a kind of frequency conversion control device for annular cooling blower, it is characterised in that including material probe unit, control
Unit, remote control unit, frequency converter, air blower；
Material probe unit, detected for the temperature to material and thickness, obtain temperature and thickness signal and transmit
To control unit；
Control unit, for receiving the temperature and thickness signal, automatic control instruction is obtained, and refer to according to the control
Order regulation frequency converter frequency or control air blower open and close；
Remote control unit, for sending control instruction to described control unit, air blower is manually or automatically controlled
System.
Preferably, the material probe unit is at least two infrared radiation thermometers.
Preferably, described control unit is fuzzy reasoning control unit, including PLC and upper unit.
Preferably, the upper unit includes：Algoritic module, for the temperature signal and thickness signal to be conversed into survey
Determine heat dissipation capacity, compared with setting heat dissipation capacity, obtain the control instruction.
Preferably, the remote control unit includes industrial computer, central control room；Central control room sends remote control
Instruction, control unit is sent to by industrial computer, controls the keying of frequency converter frequency or air blower.
Preferably, the air blower is one or more.
The present invention also provides a kind of frequency conversion control method of annular cooling air blower, using said apparatus, it is characterised in that including under
State step：
1) material probe unit measures temperature of charge and thickness value, obtains temperature and thickness signal, and the signal is sent out
Deliver to control unit；
2) control unit receives the signal from material probe unit, and conversion obtains the measurement heat dissipation capacity of material, with
Setting heat dissipation capacity compares, and obtains control instruction, and using this control instruction as foundation, adjusts frequency converter frequency or control air blower
Open and close；
3) rotating speed of frequency converter frequency control air blower, adjusts wind speed, or control unit directly controls air blower to open and close；
4) remotely blower frequency is manually or automatically controlled；
Repeat the above steps, until measurement heat dissipation capacity is consistent with setting heat dissipation capacity.
The present invention provides a kind of frequency conversion control device for annular cooling blower, including material probe unit, control unit, long-range control
Unit processed, frequency converter, air blower, and the frequency conversion control method of annular cooling air blower according to the device, technical solution of the present invention are real
The Automated condtrol of frequency conversion annular cooling air blower is showed, has reduced energy resource consumption, realized remote control, under annular cooling air blower electric current
Drop about 50%, power mono-consumption decline 0.5kwh/t ore deposits.
Brief description of the drawings
Fig. 1, the present invention device flow chart；
Fig. 2, control unit schematic diagram of the present invention.
Embodiment
In order that those skilled in the art more fully understands the technical scheme of invention, with reference to embodiment pair
The present invention is described in further detail.
The ac speed control technology that develops rapidly with Power Electronic Technique, computer technology, automatic control technology has turned into
Development trend.Motor ac variable speed technology is current economize on electricity, improves technique to improve product quality and improvement environment, push away
A kind of Main Means of dynamic technological progress.Frequency control with its excellent speed governing and rise a braking ability, high efficiency, high power because
Number, the extensive scope of application and other many advantages and be known as most promising mode of speed regulation both at home and abroad.Blower fan, pump
In the case that class even load working conditions change is bigger, if obvious using ac speed control technology, energy-saving effect.
In current steel sintering production process, the use of air blower is a big source of power consumption, and existing
Technical scheme still needs operating personnel's on-site supervision mostly, can not still reach the purpose of remote control.
Based on above technical background, the present invention provides a kind of frequency conversion control device for annular cooling blower, including material detection list
Member, control unit, remote control unit, frequency converter, air blower, and the frequency conversion annular cooling air blower controlling party according to the device
Method, technical solution of the present invention realize the Automated condtrol of frequency conversion annular cooling air blower, reduce energy digestion, realize long-range control
System, annular cooling air blower electric current decline about 50%, and power mono-consumption declines 0.5kwh/t ore deposits.
Above-mentioned elaborating for the present invention, is the embodiment of the present invention below.
Embodiment one
As shown in figure 1, the present embodiment includes material probe unit, control unit, remote control unit, frequency converter, air blast
Machine.
Material probe unit includes two infrared radiation thermometers, connects control unit, enters for the temperature to material and thickness
Row detection, obtains temperature and thickness signal and is sent to control unit.In addition infrared radiation thermometer can also be more than two, its quantity
It is not construed as limiting the invention.
Control unit is fuzzy reasoning control unit, including PLC and upper unit, upper unit built-in algorithms mould
Block, for receiving temperature and thickness signal, the temperature signal and thickness signal are converted into measure heat dissipation capacity, radiated with setting
Amount compares, and obtains the control instruction, and adjust frequency converter frequency or control air blower keying according to the control instruction.
Remote control unit includes industrial computer, central control room；Industrial computer is connected with PLC, center control
Room is connected with industrial computer, and central control room sends remote control commands, is sent to control unit by industrial computer, is controlled frequency converter
The keying of frequency or air blower, for remotely manually or automatically being controlled air blower.
Air blower is more in the present embodiment, but the quantity of air blower is not construed as limiting the invention, an air blower
It is also applied for technical scheme.
Operating procedure is as follows：
1) material probe unit measures temperature of charge and thickness value, obtains temperature and thickness signal, and send the signal to
Control unit；
2) control unit receives the signal from material probe unit, and conversion obtains the measurement heat dissipation capacity of material, with setting
Heat dissipation capacity compares, and obtains control instruction, and using this control instruction as foundation, adjusts frequency converter frequency or control air blower opens
Close；
3) rotating speed of Frequency Converter Control air blower, or control unit directly control air blower to open and close；
4) remotely blower frequency is manually or automatically controlled；
Repeat the above steps, until measurement heat dissipation capacity is consistent with setting heat dissipation capacity
The calculating process of control unit material heat dissipation capacity is as follows：Chassis area, material travelling speed and material density pass through
Data detects, and according to the material thickness detected, can calculate the quality of material that the unit interval passes through, two infrared thermometries
Device is used to detect the preceding temperature with after cooling of material cooling, by object heat formula Q=C*M* (T1-T2), can calculate thing
The heat dissipation capacity of material, Q is material heat dissipation capacity in formula, and C is material specific heat capacity, and M is the quality of material transported the unit time, T1, T2
The respectively front and rear temperature of material cooling.Calculating is arrived to obtain material heat dissipation capacity and predetermined material heat dissipation capacity progress by control unit
Compare, exporting one or more air blower according to comparison result opens and closes control instruction and one or more blower variable frequency device frequency
Control instruction.
The principle of control unit of the present invention is as shown in Fig. 2 poor with desired material heat dissipation capacity and current material heat dissipation capacity
It is worth and fuzzy control is carried out to the air blower of converting operation for error, corrects the frequency of the air blower of the converting operation.Error E
For desired material heat dissipation capacity (the material material heat dissipation capacity set) and the difference of actually measured material material heat dissipation capacity, error
E, error rate EC inputs as fuzzy control, is instructed by fuzzy controller output control, frequency converter is adjusted,
And then control the wind speed and air quantity of air blower.
The present embodiment medium-long range control model is said good-bye dynamic and automatic two kinds.Manual mode is in frequency converter or air blower stopping
Used during work.The manually running frequency of input converter, running frequency and the holding of required operating mode are transferred to since 0Hz
Blower fan is run under this frequency.
After technical scheme puts into production, annular cooling air blower electric current declines about 50%, and power mono-consumption declines
0.5kwh/t ore deposits, energy resource consumption is greatly reduced, while realize the long-range and Automated condtrol of system.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of frequency conversion control device for annular cooling blower, it is characterised in that including material probe unit, control unit, long-range control
Unit processed, frequency converter, air blower；
Material probe unit, detected for the temperature to material and thickness, obtain temperature and thickness signal and be sent to control
Unit processed；
Control unit, for receiving the temperature and thickness signal, automatic control instruction is obtained, and adjust according to the control instruction
Save frequency converter frequency or control air blower opens and closes；
Remote control unit, for sending control instruction to described control unit, air blower is manually or automatically controlled.
2. device according to claim 1, it is characterised in that the material probe unit is at least two infrared measurement of temperature
Instrument.
3. device according to claim 1, it is characterised in that described control unit is fuzzy reasoning control unit, including
PLC and upper unit.
4. device according to claim 3, it is characterised in that the upper unit includes：Algoritic module, for by described in
Temperature signal converses measure heat dissipation capacity with thickness signal, compared with setting heat dissipation capacity, obtains the control instruction.
5. device according to claim 1, it is characterised in that the remote control unit includes industrial computer, center control
Room；Central control room sends remote control commands, is sent to control unit by industrial computer, controls frequency converter frequency or air blower
Keying.
6. device according to claim 1, it is characterised in that the air blower is one or more.
A kind of 7. frequency conversion control method of annular cooling air blower, using the device described in above-mentioned any one of 1-6, it is characterised in that including
Following step：
1) material probe unit measures temperature of charge and thickness value, obtains temperature and thickness signal, and by the signal send to
Control unit；
2) control unit receives the signal from material probe unit, and conversion obtains the measurement heat dissipation capacity of material, with setting
Heat dissipation capacity compares, and obtains control instruction, and using this control instruction as foundation, adjusts frequency converter frequency or control air blower opens
Close；
3) rotating speed of frequency converter frequency control air blower, adjusts wind speed, or control unit directly controls air blower to open and close；
4) remotely blower frequency is manually or automatically controlled；
Repeat the above steps, until measurement heat dissipation capacity is consistent with setting heat dissipation capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710915188.6A CN107676285A (en) | 2017-09-30 | 2017-09-30 | A kind of frequency conversion control device for annular cooling blower and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710915188.6A CN107676285A (en) | 2017-09-30 | 2017-09-30 | A kind of frequency conversion control device for annular cooling blower and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107676285A true CN107676285A (en) | 2018-02-09 |
Family
ID=61139459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710915188.6A Pending CN107676285A (en) | 2017-09-30 | 2017-09-30 | A kind of frequency conversion control device for annular cooling blower and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676285A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04198649A (en) * | 1990-11-28 | 1992-07-20 | Matsushita Seiko Co Ltd | Inverter with 1/f fluctuation function for air conditioning |
| US7196485B1 (en) * | 2005-11-22 | 2007-03-27 | Ching-Tan Lee | Universal low-power ceiling fan controller |
| CN102251980A (en) * | 2011-08-10 | 2011-11-23 | 浙江万可电气设备有限公司 | Subway tunnel fan control system |
| CN102434478A (en) * | 2011-11-04 | 2012-05-02 | 重庆海润节能技术股份有限公司 | Remote intelligent control system and control method for fan |
| CN103014329A (en) * | 2012-12-27 | 2013-04-03 | 中冶长天国际工程有限责任公司 | Control method of annular cooling air blower |
| CN203114683U (en) * | 2013-01-17 | 2013-08-07 | 东莞市创丰科技发展有限公司 | Fan remote monitoring system |
| CN103557172A (en) * | 2013-11-13 | 2014-02-05 | 灌阳县贵达有色金属有限公司 | Control device for annular cooling blower |
| CN206530524U (en) * | 2017-03-09 | 2017-09-29 | 中联环股份有限公司 | A kind of centrifugal blower control system |
-
2017
- 2017-09-30 CN CN201710915188.6A patent/CN107676285A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04198649A (en) * | 1990-11-28 | 1992-07-20 | Matsushita Seiko Co Ltd | Inverter with 1/f fluctuation function for air conditioning |
| US7196485B1 (en) * | 2005-11-22 | 2007-03-27 | Ching-Tan Lee | Universal low-power ceiling fan controller |
| CN102251980A (en) * | 2011-08-10 | 2011-11-23 | 浙江万可电气设备有限公司 | Subway tunnel fan control system |
| CN102434478A (en) * | 2011-11-04 | 2012-05-02 | 重庆海润节能技术股份有限公司 | Remote intelligent control system and control method for fan |
| CN103014329A (en) * | 2012-12-27 | 2013-04-03 | 中冶长天国际工程有限责任公司 | Control method of annular cooling air blower |
| CN203114683U (en) * | 2013-01-17 | 2013-08-07 | 东莞市创丰科技发展有限公司 | Fan remote monitoring system |
| CN103557172A (en) * | 2013-11-13 | 2014-02-05 | 灌阳县贵达有色金属有限公司 | Control device for annular cooling blower |
| CN206530524U (en) * | 2017-03-09 | 2017-09-29 | 中联环股份有限公司 | A kind of centrifugal blower control system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180209 |