SU901727A1 - Boiler heating surface cleaning process automatic control method - Google Patents
Boiler heating surface cleaning process automatic control method Download PDFInfo
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- SU901727A1 SU901727A1 SU802906401A SU2906401A SU901727A1 SU 901727 A1 SU901727 A1 SU 901727A1 SU 802906401 A SU802906401 A SU 802906401A SU 2906401 A SU2906401 A SU 2906401A SU 901727 A1 SU901727 A1 SU 901727A1
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- USSR - Soviet Union
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- heating surface
- automatic control
- cleaning process
- control method
- surface cleaning
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Description
(54) СПОСОБ АВТОМАТИЧЕСКОГО РЕГУЛИРОВАНИЯ ПРОЦЕССА ОЧИСТКИ ПОВЕРХНОСТИ НАГРЕВА КОТЛА(54) METHOD FOR AUTOMATIC REGULATION OF THE CLEANING PROCESS OF THE BOILER HEATING SURFACE
1one
Изобретение относитс к теплоэнергетике , в частности к процессам очистки поверхностей нагрева (сажеобдувки) в регенерационных котлоагрегатах (РК), широко примен емых на целлюлозно-бумажных и картонных комбинатах.The invention relates to heat and power engineering, in particular, to the processes of cleaning heating surfaces (sootblowing) in regenerative boilers (RK), widely used in pulp and paper and paperboard mills.
Известен способ автоматического регулировани процесса очистки поверхности нагрева котла путем изменени по командному сигналу количества пара, подаваемого на обдув поверхности нагрева, размеш,енной в газоходе. В качестве командного сигнала в известном способе используют импульсы заданной частоты и скважности 1.There is a known method of automatically regulating the process of cleaning the heating surface of a boiler by changing, by a command signal, the amount of steam supplied to the blowing of the heating surface that is stirred in the flue. As a command signal in a known method, pulses of a given frequency and duty cycle 1 are used.
Недостатком известного способа вл етс невысокое 1 ачество очистки поверхности нагрева вследствие того, что в нем не учитываетс действительное состо ние поверхности нагрева.The disadvantage of this method is the low quality of cleaning the heating surface due to the fact that it does not take into account the actual state of the heating surface.
Цель изобретени - повышение качества очистки поверхностей нагрева.The purpose of the invention is to improve the quality of cleaning of heating surfaces.
Поставленна цель достигаетс тем, чти измер ют перепады температуры и давлени продуктов сгорани на поверхности нагрева и линейную комбинацию измеренных сигналов используют в качестве командного сигнала.This goal is achieved by measuring the differences in temperature and pressure of combustion products on the heating surface and using a linear combination of measured signals as a command signal.
На чертеже представлена схема системы.The drawing shows a diagram of the system.
Регулируюш,нй клапан 1 подачи пара на обдув поверхности нагрева 2, размеш,енной в газоходе 3 котлоагрегага, подключен к регул тору 4, св занному с датчиками давлени 5 и 6 и температуры 7 и 8 продуктов сгорани на входе и выходе из поверхности нагрева 2.An adjustable steam supply valve 1 for blowing the heating surface 2 placed in the boiler duct 3 is connected to the controller 4 connected to pressure sensors 5 and 6 and temperatures 7 and 8 of the combustion products at the inlet and outlet from the heating surface 2 .
Система работает следуюшим образом.The system works as follows.
Датчики давлени 5 и 6 и температуры 7 и 8 включены встречно. Поэтому сигналы от обоих датчиков давлени или температуры, приведенные ко входу регул тора 4, пропорциональны перепадам давлени и температуры продуктов сгорани на поверхности нагрева 2.Pressure sensors 5 and 6 and temperatures 7 and 8 are on the opposite side. Therefore, the signals from both pressure or temperature sensors brought to the input of controller 4 are proportional to the pressure and temperature differences of the combustion products on the heating surface 2.
15 При увеличении суммы сигналов по перепедам давлени и температуры продуктов сгорани на входе и выходе поверхностей нагрева в газоходе регул тор 4 увеличивает степень открыти регулируюшего клапана и благодар этому увеличивает подачу пара на обдув поверхности нагрева 2.15 With an increase in the sum of the signals by pepepedom pressure and temperature of combustion products at the inlet and outlet of the heating surfaces in the gas duct, the controller 4 increases the degree of opening of the control valve and thereby increases the steam flow to the heating surface blowing 2.
Использование сигналов по текуш.им значени м перепадов давлени и температуры продуктов сгорани позвол ет учесть действительное состо ние поверхности нагреваUsing signals by the current values of pressure drop and temperature of combustion products allows to take into account the actual state of the heating surface.
и в соответствие с этим скорректировать подачу пара на обдув. В результате этого качество очистки поверхности нагрева повышаетс .and in accordance with this, adjust the steam supply for airflow. As a result, the cleaning quality of the heating surface is improved.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802906401A SU901727A1 (en) | 1980-04-08 | 1980-04-08 | Boiler heating surface cleaning process automatic control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802906401A SU901727A1 (en) | 1980-04-08 | 1980-04-08 | Boiler heating surface cleaning process automatic control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU901727A1 true SU901727A1 (en) | 1982-01-30 |
Family
ID=20888165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802906401A SU901727A1 (en) | 1980-04-08 | 1980-04-08 | Boiler heating surface cleaning process automatic control method |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU901727A1 (en) |
-
1980
- 1980-04-08 SU SU802906401A patent/SU901727A1/en active
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