SU1273418A1 - Apparatus for automatic control of density of green liquer in tank for dissolving the melt of soda-regeneration boiler unit - Google Patents
Apparatus for automatic control of density of green liquer in tank for dissolving the melt of soda-regeneration boiler unit Download PDFInfo
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- SU1273418A1 SU1273418A1 SU843799107A SU3799107A SU1273418A1 SU 1273418 A1 SU1273418 A1 SU 1273418A1 SU 843799107 A SU843799107 A SU 843799107A SU 3799107 A SU3799107 A SU 3799107A SU 1273418 A1 SU1273418 A1 SU 1273418A1
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Description
Изобретение относитс к целлюлознобумажному производству и может быть использовано дл автоматического регулировани плотности зеленого щелока в баке растворител плава содорегенерационного котлоагрегата.The invention relates to pulp and paper production and can be used to automatically control the density of green liquor in a solvent tank of a soda recovery boiler.
Целью изобретени вл етс повышение качества процесса регулировани .The aim of the invention is to improve the quality of the regulatory process.
На чертеже представлена структурна схема устройства дл автоматического регулировани плотности зеленого щелока в баке растворител плава содорегационного котлоагрегата .The drawing shows a block diagram of a device for automatically controlling the density of green liquor in a tank of a melt-recovery boiler.
Устройство содержит датчики 1 и 2 температуры , соединенные через преобразователи 3 и 4 с входами сумматор.а 5, выход которого св зан с одним из входов блока 6 умножени . Второй вход блока 6 соединен через преобразователь 7 с датчиком 8 расхода воды охлаждающей летки 9, а выход блока 6 св зан с первым входом ПИ-регул тора 10. Выход блока 10 соединен через блок 11 управлени с клапаном 12, установленным на линии подачи белого щелока в бак 13 растворител плава. Датчик 14 плотности зеленого щелока св зан через преобразователь 15 и блок 16 коррекции с вторым входом ПИ-регул тора 10, третий и четвертый входы которого соединены соответственно .с задатчиком 17 и через преобразователь 18 - с датчиком 19 расхода слабого белого щелока.The device contains temperature sensors 1 and 2 connected via converters 3 and 4 to the inputs of the adder. A 5, the output of which is connected to one of the inputs of the multiplication unit 6. The second input of block 6 is connected via converter 7 to the sensor 8 of the water flow of the cooling tap 9, and the output of block 6 is connected to the first input of PI controller 10. The output of block 10 is connected via block 11 of control to valve 12 installed on the white liquor supply line in the tank 13 solvent melt. The sensor 14 for the density of green liquor is connected via converter 15 and correction unit 16 to the second input of PI controller 10, the third and fourth inputs of which are connected respectively to the setting device 17 and through converter 18 to the sensor 19 for the consumption of weak white liquor.
Устройство работает следующим образом.The device works as follows.
Значени температуры воды охлаждающей летки 9, в которую подаетс плав из содорегенерационного котлоагрегата, измеренные датчиками 1 и 2 на входе и выходе воды из леток, поступают через преобразователи 3 и 4 в сумматор 5. Сигнал разности температур с блока 5 подаетс в блок 6, где он перемножаетс с сигналом величины расхода воды на охлаждение , который приходит с датчика 8 через преобразователь 7. В регул торе 10 сигнал сThe temperature of the water of the cooling tap 9, into which the melt from the recovery boiler is measured, measured by sensors 1 and 2 at the inlet and outlet of water from the tap holes, is fed through converters 3 and 4 to the adder 5. The temperature difference signal from block 5 is fed to block 6, where it multiplies with the cooling water flow rate signal that comes from sensor 8 through converter 7. In controller 10, the signal from
блока б суммируетс с величиной расхода слабого белого щелока, измер емой датчиком 19, и по величине рассогласовани суммарного сигнала и задани , поступающего из задатчика 17, осуществл етс регулирование через блок 11 управлени величиной открыти клапана 12 расхода слабого белого щелока, поступающего в бак 13 растворител плава. При изменении величины плотности зеленого щелока, контролируемой датчиком 14, блоком 16 через регул тор 10 пропорционально измеренному сигналу корректируют расход слабого щелока.block b is summed up with the flow rate of the weak white liquor measured by the sensor 19, and according to the magnitude of the mismatch between the sum signal and the task coming from the setter 17, the flow rate of the weak white liquor entering the tank 13 of the solvent is controlled through the control unit 11. swim. When changing the density of green liquor, controlled by the sensor 14, the block 16 through the regulator 10 in proportion to the measured signal corrects the consumption of weak liquor.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU843799107A SU1273418A1 (en) | 1984-10-10 | 1984-10-10 | Apparatus for automatic control of density of green liquer in tank for dissolving the melt of soda-regeneration boiler unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU843799107A SU1273418A1 (en) | 1984-10-10 | 1984-10-10 | Apparatus for automatic control of density of green liquer in tank for dissolving the melt of soda-regeneration boiler unit |
Publications (1)
Publication Number | Publication Date |
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SU1273418A1 true SU1273418A1 (en) | 1986-11-30 |
Family
ID=21141664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU843799107A SU1273418A1 (en) | 1984-10-10 | 1984-10-10 | Apparatus for automatic control of density of green liquer in tank for dissolving the melt of soda-regeneration boiler unit |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1273418A1 (en) |
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1984
- 1984-10-10 SU SU843799107A patent/SU1273418A1/en active
Non-Patent Citations (1)
Title |
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Авторское свидетельство СССР № 672261, кл. 4 D 21 С 7/12, 1979. * |
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