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Cчетчики-расходомеры массовые Micro Motion
Cчетчики-расходомеры массовые Micro Motion (далее счётчики-расходомеры) предназначены для прямого измерения массового расхода, плотности, массы, определения объемного расхода и объема жидкости и газа в химической, нефтехимической, нефтяной, пищевой, фармацевтической и других отраслях промышленности, в т.ч. во взрывоопасных зонах.
Принцип действия счетчиков-расходомеров основан на использовании сил Кориолиса, действующих на элементы среды, двигающейся по петле трубопровода, которая колеблется с частотой вынуждающей силы, создаваемой катушкой индуктивности при пропускании через неё электрического тока заданной частоты. Базовый процессор счетчика-расходомера постоянно подстраивает частоту вынуждающих колебаний с тем, что бы она совпадала с собственной (резонансной) частотой колебаний петли, которая в свою очередь зависит от плотности среды, протекающей через полость счётчика-расходомера. Сопоставляя полученную в результате подстройки резонансную частоту колебаний со значениями резонансных частот, полученных при калибровке на средах с известной плотностью, счетчик-расходомер имеет возможность определить плотность протекающей через него среды.
Так как направления сил Кориолиса противоположны для элементов среды, двигающихся в различных направлениях относительно оси вращения, то при наличии потока петля в целом совершает колебания изгиба (противоположные участки петли совершают угловые перемещения относительно точки крепления со сдвигом по времени). Вследствие этого, между гармоническими колебаниями противоположных участков петли возникает измеряемая разность фаз, которая используется для определения массового расхода жидкости или газа. Параметры колебаний петли измеряются с помощью катушек индуктивности.
Счетчики-расходомеры, принцип измерения которых основан на применении силы Кориолиса, не имеют вращающихся частей, и результаты измерений не зависят от наличия твердых частиц или иных примесей в жидкости. Отклонение температуры среды от температуры калибровки компенсируется установкой нуля, а изменение давления среды внесением соответствующей поправки.
Счетчики-расходомеры состоят из первичного измерительного преобразователя массового расхода и плотности, и электронного преобразователя, который может быть встроенным и выносным (на расстояние до 300 м). Первичные преобразователи оснащаются базовым процессором. Базовый процессор первичного преобразователя реализует алгоритмы вычисления массы, массового расхода, плотности и других параметров потока. Выпускаются две модели базовых процессоров: модель 700 (стандартная) и модель 800 (усовершенствованная). Электронные преобразователи обеспечивают обработку цифровых сигналов, поступающих с базового процессора первичного измерительного преобразователя, регистрацию результатов измерений параметров потока и передачу результатов измерений по различным каналам связи. Первичный измерительный преобразователь массового расхода может быть использован и без электронного преобразователя.
Подробнее ознакомиться с характеристиками, узнать цены и заказать счётчик-расходомер вы можете по ссылке - https://neftel.ru/rashodomer-micro-motion
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(Albrigi2020bep, 21. 1. 2020 18:53)
Organic Wine
Do you ever worry about what additives, preservatives and pesticides are in your food? What about the effect on the environment of the manufacturing process?
When you make your own wine you don’t need to worry! Every ingredient has been put in the wine personally so you know exactly what you’re putting in to your body.
Whether you are using fruit you have grown yourself (or been given) or you’ve been able to source locally grown organic beauties – you can now make your own organic wine at fraction of the cost of store-bought organic wine.
You can also buy organic sugar fair trade sugar from the makewine.co.nz shop. This sugar has been sustainably and ethically sourced.
Sulphite (Sulfite) Free Wine
It is impossible to make a sulfite-free wine, because wine yeast produces sulfur dioxide (SO2) during the fermentation process. However, you can reduce and control the amount of sulphites in your wine by how much / whether you use metabisulphite in your home winemaking.
It is true that metabisulphite is an effective and safe method of sterilising both your must and equipment, but if you don’t mind taking a little bit of risk you can make wine without it. Using boiling water to sterlise your equipment and must, whilst a bit more risky in terms of your wine getting an infection, may be a worthwhile trade-off in your opinion especially if you have a sensitivity to sulphites. You can also choose to rinse your equipment that has been sterlised with metabisulphite with cooled boiled water to reduce the amount of sulphites you are adding to your wine. Also, if you are planning on drinking your wine young, the alcohol in the wine will act as a preservative, negating the need to add metabisulphite throughout the winemaking process as a preservative.
Some people use chlorine bleach to sterlise their equipment rather than metabisulphite. Also some homebrew stores sell a pink powder as a sanitiser which is a chlorinated product. This is NOT recommended. Chlorine is quite a dangerous product to have around wine. With improper use and insufficient rinsing chlorine residue may get into the wine. If it does, it could easily be converted to trichloroanisole (TCA) the major chemical found in cork taint (mustiness). For this reason, chlorine is almost never used in wineries.
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Расходомеры MICRO MOTION
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