Жидкий Азот -196С!!!
Выглядит совершенно как вода! Увидеть его в спокойном состоянии можно только в Криостате с доступом камеры вовнутрь. В данном случае это был криостат компании Mesuron LLC www.mesuron.com с доступом по горловине в 180 мм
Как оказалось, на Ютюбе показывают в основном жидкий азот парящим или кипящим. Изоляция криостатов от Mesuron LLC настолько хороша, что мы можем увидеть жидкий азот в "спокойном" состоянии.
-----------
Жидкий азот (ЖА, англ. Liquid nitrogen, LIN, LN2) — жидкость прозрачного цвета. Является одним из четырёх агрегатных состояний азота. Жидкий азот обладает удельной плотностью 0,808 г/см³, и имеет точку кипения 77,4 K (−195,75 °C). Не взрывоопасен и не ядовит.
Литр жидкого азота, испаряясь и нагреваясь до 20 °C, образует примерно 700 литров газа. По этой причине жидкий азот хранят в специальных сосудах Дьюара с вакуумной изоляцией открытого типа или криогенных ёмкостях под давлением.
Использование:
У жидкого азота немало сфер применения.
В технике и на производстве:
используется для криогенной резки;
при глубокой заморозке различных материалов, в том числе органических;
для охлаждения различного оборудования и техники;
в оверклокинге, для охлаждения компонентов компьютера при экстремальном разгоне;
В медицине:
для хранения клеток, органов и тканей при помощи криоконсервации
для криодеструкции (разрушения пораженных участков тканей и органов), например, для удаления бородавок
для косметической процедуры "криованна" (воздействие холодом на кожу)
В пожаротушении: Испаряясь, азот охлаждает очаг возгорания и вытесняет кислород, необходимый для горения, поэтому пожар прекращается. Так как азот, в отличие от воды, пены или порошка, просто испаряется и выветривается, азотное пожаротушение, наряду с углекислотным, — наиболее эффективный с точки зрения сохранности ценностей способ тушения пожаров.
Прочее:
известны случаи, когда жидкий азот использовался в преступных целях - для разрушения различных материалов, замков и даже целых железнодорожных мостов
Немного о компании производящей стеклопластиковые криостат доступные на рынке.
Английская версия которую Вы можете перевести если используете Гугл Хром
Low Magnetic Noise Fiberglass Cryostats
Various cryostat designs reflect different SQUID magnetometers (sensors) configurations for different applications.
4A Northway Lane, Latham, NY, USA, 12110 Tel: 518-557-3510 email: sales@mesuron.com
The technology of non-magnetic fiberglass-based low-noise cryostats housing SQUID systems is extremely demanding. It requires an exact heat-transfer design, minimal use of reflecting metal shields, materials know-how and special manufacturing skills possessed only by a few companies in the world with some of them already being out of business: Hoxan (Japan), CTF (Canada), 2-G (USA), Tristan (USA), CES (USA) and a handful of others. Mesuron LLC cryostats are superior to all of the above, as described in more details below.
Driven by the SQUID technology needs, Mesuron LLC developed a complete line of cryostats, including several standard series of non-magnetic cryostats, which sell as a part of the system or as stand-alone items. The standard Mesuron cryostat series includes a variety of bio-magnetic and other types of cryostats for both liquid helium and liquid nitrogen. Mesuron LLC also produces custom-made specialized cryostats, like cryostats that can work in any orientation, including horizontal
and upside-down; cryostats with optical windows, cryostats with a record-small measurement distance from the cold liquid inside to the room-temperature surface outside (the "hot-to-cold" distance), etc.
Mesuron LLC fully utilizes the unique knowledge and expertise of its founder, scientist, engineer and inventor
A. Bakharev, who has more than 30 years of research and practical experience with plastics, epoxy resins, types of vacuum-tight connections for extremely low temperatures, as well as specific requirements for the SQUID sensors. Improved cryostat designs were the result of creating a variety of SQUID magnetometers for measuring extremely weak magnetic signals in a magnetically unshielded environment for numerous applications. SQUID magnetometers based on Mesuron's cryostats perform reliably in an extremely magnetically and radio frequency "noisy" environment, in close proximity to the freight elevators, computers, printers, Wi-Fi hot spots and moving hospital personnel.
Mesuron LLC cryostats outperform competitors' cryostats due to
higher reliability: most of our cryostats have been in working condition for more than 20 years
longer helium hold times
lighter weight
resistance to mechanical damage
lower magnetic noise
smaller hot-to-cold distances
easier access to liquid helium or nitrogen,
faster cool down
safer operation.
Please, note that cryostat dimensions may differ from those in the pictures. All cryostat pictures are just examples of possible SQUID magnetometers configurations. For more custom cryostat details please
contact us
If you would like to submit a request for quotation, please, click here
Request Form
4A Northway Lane, Latham, NY, USA, 12110 Tel: 518-557-3510 email: sales@mesuron.com
Cryostats Series BA1
In the Picture:
D1 -An inside diameter of the cryostat neck and cryogenic vessel
D2 - Cryostat outside diameter
L - Length of the cryostat without inserts (cap)
Ln -Cryostat neck length
H - Minimum Hot-to-Cold distance from the sensor to the warm surface of the bottom plate
BA1 cryostat series is popular in research and experiments with large dimension cryogenic devices requiring maximum access to the cryogenic vessel. We can produce cryostats with L = up to 1000 mm, D1= 200 mm and D2= 260 mm and H = 15-20 MM
The full size cryostat has the volume of about 18 liters and liquid helium evaporation rate of 2-4 liters per day depending on the numbers of the inserts (SQUID magnetometer probes) or the numbers of connecting wires.
If you have any question or would like to submit a request for Quotation, please, click here
Request Form
Cryostats series BA2
In the Picture:
D1 - The inside diameter of the cryostat neck and internal cryogenic tail.
D2 - Cryostat outside diameter
D3 -The inside diameter of the cryogenic vessel
D4 -The outside cryostat tail diameter
L - Length of the cryostat without inserts (cap)
Ln -Cryostat neck length
Lb -Cryogenic vessel length
Lti -Internal cryogenic tail length
Ltn -Outside cryostat tail length
H - Minimum Hot-to-Cold distance from the sensor to the warm surface of the bottom plate
Cryostat design BA2 is popular in the SQUID magnetometers used in small measurement areas, small Hot-to-Cold "H" distance and low liquid helium consumption. The "H" distance can vary from 7 to 15 mm depending on helium consumption requirements, design and dimensions of the internal tail diameter
If you have any question or would like to submit a request for Quotation please click here
Request Form
Cryostats series BA3
In the Picture:
D1 -The inside diameter of the cryostat neck and internal cryogenic tail
D2 - Cryostat outside diameter
D3 -The inside diameter of the cryogenic vessel
D4 - The outside cryostat tail diameter
L - Length of the cryostat without inserts (cap)
Ln - Cryostat neck length
Lb - Cryogenic vessel length
Lti - Internal cryogenic tail length
H - Minimum Hot-to-Cold distance from the sensor to the warm surface of the bottom plate
If you have any question or would like to submit a request for Quotation, please, click here
Request Form
Cryostats series BA4
In the Picture:
D1 - The inside diameter of the cryostat neck and internal cryogenic vessel
D2 - Cryostat outside diameter
D4 - Internal Diameter of the inside cryostat tail
L - Length of the cryostat without inserts (cap)
Ln -Cryostat neck length
Lb -Cryogenic vessel length
Lti - Internal cryogenic tail length
H - Minimum Hot-to-Cold distance from the sensor to the warm surface of the bottom plate
Cryostat design BA4 is used in cryogenic probes or devices requiring large common access to the cryostat which has a small diameter of the sensors area. BA4 provides the smallest "H" distance possible and a cryogenic bulb which is very stable in vibration. Helium consumption is usually better than in the B1 cryostat though it still depends on the "H" distance requirements and the cryogenic insert design in the cryostat neck region.
If you have any question or would like to submit a request for Quotation, please, click here
Request Form
Horizontal Cryostats series BA5
In the Picture:
D1 - The inside diameter of the cryostat neck and cryogenic vessel
D2 - Cryostat outside diameter
L - Length of the cryostat without inserts (cap)
Lb -Cryogenic vessel length
A horizontal cryostat is the most challenging one to design and manufacture.
Mesuron LLC series BA5 allows for the placement of a cryogenic insert as large and long as the cryogenic vessel itself. As with other Mesuron cryostats, the proprietary cryogenic lock design allows to remove the cryogenic insert out of the cryostat without the need for any special instruments. The cryostat automatically becomes hermetically sealed during the cool down.
If you have any question or would like to submit a request for Quotation, please, click here
Request Form
Upside down cryostats series BA6
In the Picture:
D1 - The inside diameter of the cryostat neck and internal cryogenic tail
D2 - Cryostat outside diameter
D3 -The cryogenic vessel inside diameter
D4 -The outside cryostat tail diameter
L - Length of the cryostat without inserts (cap)
Ln -Cryostat neck length
Lb - Length of the cryogenic vessel that can be filled with cryogen, may vary on demand
Lti - Internal cryogenic tail length
H - Minimum Hot-to-Cold distance from the sensor to the warm surface of the cryostat bottom plate
BA6 design is used when there is a need for a special access during measurements taking. BA6 can work in any position in relation to the measured object. The maximum cryogen volume in this design is a half of the cryogenic vessel. The cryogenic vessel must be thermo-stabilized in order for all of its parts to have the same temperature as cryogen itself. On operating only in the upside down position, the cryogen volume can occupy up to 90% of the cryogenic vessel. In this case, filing it up with cryogen is possible only in the upside down position as well.
If you have any question or would like to submit a request for Quotation, please, click here
Request Form
.jpg)
