RU2007124558A - Устройство расхода технологической текучей среды с переменным проходным отверстием - Google Patents
Устройство расхода технологической текучей среды с переменным проходным отверстием Download PDFInfo
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- RU2007124558A RU2007124558A RU2007124558/06A RU2007124558A RU2007124558A RU 2007124558 A RU2007124558 A RU 2007124558A RU 2007124558/06 A RU2007124558/06 A RU 2007124558/06A RU 2007124558 A RU2007124558 A RU 2007124558A RU 2007124558 A RU2007124558 A RU 2007124558A
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- Prior art keywords
- flow
- process fluid
- fluid
- variable
- pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/03—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with a closure member in the form of an iris-diaphragm
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Flow Control (AREA)
- Measuring Volume Flow (AREA)
- Sliding Valves (AREA)
Claims (32)
1. Устройство регулирования расхода технологической текучей среды, содержащее
запирающий механизм, размещенный в трубопроводе потока и обеспечивающий выборочную степень препятствия потоку текучей среды через трубопровод,
исполнительный механизм, соединенный с запирающим механизмом для управления выборочной степенью препятствия потоку текучей среды на основе управляющего сигнала,
датчик разности давлений, размещенный для определения перепада давления технологической текучей среды через препятствие потоку текучей среды,
схема измерений, соединенная с датчиком разности давлений, предназначенная для получения сигнала перепада давления от датчика разности давлений,
контроллер, соединенный со схемой измерений и исполнительным механизмом и предназначенный для выполнения управляющего алгоритма, чтобы формировать управляющий сигнал на основе сигнала перепада давлений, и
модуль контурной связи, соединенный с множеством контурных терминалов и с контроллером и предназначенный для обмена данными в соответствии с технологическим стандартным протоколом.
2. Устройство по п.1, отличающееся тем, что в качестве запирающего механизма использована ирисовая диафрагма.
3. Устройство по п.2, отличающееся тем, что ирисовая диафрагма содержит множество лепестков, которые выступают в трубопровод потока.
4. Устройство по п.3, отличающееся тем, что множество лепестков выполнено из политетрафторэтилена.
5. Устройство по п.3, отличающееся тем, что множество лепестков выполнено из металла с покрытием из политетрафторэтилена.
6. Устройство по п.2, отличающееся тем, что каждый лепесток имеет кривую поверхность для формирования круглого внутреннего диаметра.
7. Устройство по п.2, отличающееся тем, что ирисовая диафрагма является самоуплотняющейся.
8. Устройство по п.1, отличающееся тем, что исполнительный механизм включает в себя электродвигатель.
9. Устройство по п.8, отличающееся тем, что электродвигатель формирует противоэлектродвижущую силу (ЭДС), которая обеспечивает вторичную индикацию перепада давлений.
10. Устройство по п.1, отличающееся тем, что исполнительный механизм включает в себя пневмодвигатель.
11. Устройство по п.10, отличающееся тем, что перепад давлений в пневмодвигателе обеспечивает индикацию перепада давлений технологической текучей среды в запирающем механизме.
12. Устройство по п.1, отличающееся тем, что исполнительный механизм включает в себя ручной исполнительный механизм.
13. Устройство по п.1, отличающееся тем, что контроллером является микропроцессор.
14. Устройство по п.13, отличающееся тем, что дополнительно содержит запоминающее устройство, содержащее взаимосвязь между бета-отношением и внутренним диаметром запирающего механизма.
15. Устройство по п.14, отличающееся тем, что взаимосвязь представляет собой математическое отношение.
16. Устройство по п.14, отличающееся тем, что взаимосвязь аппроксимируется в таблице соответствия, сохраненной в запоминающем устройстве.
17. Устройство по п.1, отличающееся тем, что дополнительно содержит модуль питания, соединенный с множеством терминалов и предназначенный для питания устройства энергией, принимаемой от множества терминалов.
18. Устройство по п.17, отличающееся тем, что оно полностью запитывается посредством тех проводников, посредством которых осуществляется обмен данными.
19. Устройство по п.1, отличающееся тем, что дополнительно содержит отсечной клапан высокого давления, соединенный с трубопроводом потока.
20. Устройство регулирования расхода технологической текучей среды, содержащее
средство выборочного препятствия потоку текучей среды,
средство определения перепада давлений технологической текучей среды в средстве выборочного препятствия потоку текучей среды и
средство управления средством препятствия потоку текучей среды на основе управляющего алгоритма и измеренного перепада давлений.
21. Способ регулирования расхода технологической текучей среды с помощью одного технологического устройства, заключающийся в том, что
измеряют перепад давления технологической текучей среды, протекающей через ирисовую диафрагму,
формируют управляющий сигнал на основе выбранной уставки расхода текучей среды и измеренного перепада давления и
регулируют ирисовую диафрагму на основе управляющего сигнала.
22. Способ по п.21, отличающийся тем, что уставку передают технологическому устройству по контуру технологической связи.
23. Способ по п.22, отличающийся тем, что дополнительно подают электроэнергию в технологическое устройство от контура технологической связи.
24. Способ по п.21, отличающийся тем, что регулирование ирисовой диафрагмы включает в себя этап, на котором осуществляют выбор из предварительно выбранных уровней закрытия.
25. Способ по п.21, отличающийся тем, что регулирование ирисовой диафрагмы включает в себя этап, на котором осуществляют выбор постоянного уровня закрытия.
26. Способ измерения расхода технологической текучей среды, заключающийся в том, что
направляют поток технологической текучей среды через переменное проходное отверстие,
измеряют перепад давления технологической текучей среды в переменном проходном отверстии и
регулируют величину переменного проходного отверстия, если измеренный расход текучей среды удовлетворяет выбранному пороговому значению.
27. Способ по п.26, отличающийся тем, что регулирование переменного проходного отверстия выполняют автоматически.
28. Способ проверки работы устройства расхода технологической текучей среды, имеющего переменное проходное отверстие и датчик разности давлений, помещенный для измерения перепада давления в переменном проходном отверстии, заключающийся в том, что
измеряют первый перепад давления в переменном проходном отверстии, когда переменное проходное отверстие установлено на первый уровень закрытия,
устанавливают переменное проходное отверстие на второй уровень закрытия, отличный от первого уровня закрытия,
измеряют второй перепад давления в переменном проходном отверстии, установленном на второй уровень закрытия,
сравнивают первый перепад давления со вторым перепадом давления, чтобы сформировать сигнал выхода, характерезующий проверку.
29. Способ по п.28, отличающийся тем, что дополнительно вводят в устройство регулирования расхода технологической текучей среды параметр, указывающий, что технологическая текучая среда является неизменной, так что первый и второй измеренный перепад давления может быть использован для контроля диапазона значений.
30. Способ проверки тарировки (калибровки) устройства регулирования расхода технологической среды, заключающийся в том, что
прекращают подачу технологической текучей среды через устройство,
обнуляют устройство расхода технологической текучей среды, пока расход прекращен.
31. Способ по п.30, отличающийся тем, что для прекращения подачи технологической текучей среды закрывают отсечной клапан.
32. Способ по п.31, отличающийся тем, что используют отсечной клапан в качестве элемента устройства регулирования расхода технологической текучей среды.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/000,564 | 2004-12-01 | ||
US11/000,564 US7255012B2 (en) | 2004-12-01 | 2004-12-01 | Process fluid flow device with variable orifice |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2007124558A true RU2007124558A (ru) | 2009-01-10 |
RU2361260C2 RU2361260C2 (ru) | 2009-07-10 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2007124558/06A RU2361260C2 (ru) | 2004-12-01 | 2005-11-18 | Устройство расхода технологической текучей среды с переменным проходным отверстием |
Country Status (6)
Country | Link |
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US (1) | US7255012B2 (ru) |
EP (1) | EP1834116B1 (ru) |
JP (1) | JP5048511B2 (ru) |
CN (1) | CN101061338B (ru) |
RU (1) | RU2361260C2 (ru) |
WO (1) | WO2006060185A1 (ru) |
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- 2005-11-18 JP JP2007544374A patent/JP5048511B2/ja not_active Expired - Fee Related
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- 2005-11-18 EP EP05849418.8A patent/EP1834116B1/en not_active Ceased
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JP5048511B2 (ja) | 2012-10-17 |
CN101061338B (zh) | 2012-05-30 |
WO2006060185A8 (en) | 2006-08-31 |
EP1834116B1 (en) | 2013-10-16 |
US20060112773A1 (en) | 2006-06-01 |
WO2006060185A1 (en) | 2006-06-08 |
CN101061338A (zh) | 2007-10-24 |
JP2008522319A (ja) | 2008-06-26 |
EP1834116A1 (en) | 2007-09-19 |
US7255012B2 (en) | 2007-08-14 |
RU2361260C2 (ru) | 2009-07-10 |
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