Bar type ultra low temperature cold trap DW-100-BT

PRODUCTFEATURES 产品特征：

Cold traps are specially designed HeatExchangers designed to trap the condensate. The trap is cooled below a specifictemperature range in order to condense valuable or dangerous chemicals. The coldtrap works by condensing vapors into a liquid on the traps surface area whichis collected in the base of the trap. The colder you get the trap the morestuff can be condensed and trapped. Cold traps are attached to a vacuum systembetween the vacuum pump and the vacuum chamber in order to prevent solvents andother corrosive compounds from reaching the pump.

冷阱是专门设计的用于捕集凝结水的热交换器。陷阱被冷却到一个特定的温度范围以下，以便浓缩有价值或危险的化学物质。冷阱的工作原理是将蒸汽凝结成陷阱表面积上的液体，然后收集在陷阱的底部。你得到的陷阱越冷，就会有更多的东西被浓缩和捕获。在真空泵和真空室之间的真空系统上装有冷阱，以防止溶剂和其他腐蚀性化合物到达真空泵。

Methods for Cooling

Ice (water): Ice melts at around 32 degreeswhich makes it especially well suited for trapping alcohol or other high boilingpoint compounds. Ice is not cold enough to freeze water in the trap or condenselow boiling solvents like Butane. This combined with the availability of icemakes it an attractive option when used to keep contamination out of the pump.Ice keeps the trap cold enough that anything with a boiling point above 50Cwill be collected in the trap keeping the vacuum pump clean.

冷却冰(水)的方法：冰在32度左右融化，这使得它特别适合捕捉酒精或其他高沸点化合物。冰是不够冷，以冻结水在陷阱或浓缩低沸点溶剂，如丁烷。这与冰的可用性相结合，使它成为一个有吸引力的选择，当使用时，以防止污染的泵。冰保持陷阱足够冷，任何沸点超过50C的东西都会被收集在保持真空泵清洁的陷阱中。

Dry ICE: Dry ice is frozen CO2 and does notmelt due to CO2’s vapor pressure. Instead frozen CO2 turns directly from asolid to a gas as it sublimates which is why it is called “dry" ice. CO2sublimates at a much lower temperature than water melts, -109.2 degreesfahrenheit to be precise. However Heat transfer is never 99% efficient andwhen using pelletized dry ice alone the trap gets down to about -40 fahrenheit.At this temperature highly volatile molecules such as terpenes will collect inthe trap along with dangerous solvents such as butane. In High vacuum systemsthe constantly reducing pressure leads to product loss from the trap, thecolder you keep the trap the less that happens. Dry ice Can be used around theoutside of the cold trap to keep the terpenes and other valuable componentstrapped during your vac down process .

干冰：干冰是冻结的二氧化碳，不融化，因为二氧化碳的蒸汽压力。相反，冻结的二氧化碳在升华时直接从固体转化为气体，这就是为什么它被称为“干冰"的原因。二氧化碳以比水的温度低得多的温度升华，准确地说是华氏-109.2度。然而，传热从来没有99%的效率，当使用颗粒干冰时，陷阱下降到-40华氏度左右。在此温度下，诸如萜烯等高度易挥发的分子将与诸如丁烷等危险溶剂一起聚集在陷阱中。在高真空系统中，不断降低的压力会导致从陷阱中产生的产品损失，你保持这个陷阱的温度越低，发生的情况就越少。干冰可以在冷阱周围使用，以保存萜烯和其他有价值的化合物。

Dry ICE with IPA(isopropyl alcohol): Dryice is extremely cold, but it’s hard to use dry ice to cool something else thatcold. This is because the dry ice has limited surface area and air is a poorconductor of thermal energy. In order to increase the efficency and “cool"faster a liquid media such as Isopropyl alcohol or anti freeze can be used.Heat(thermal energy) is transferred through water almost 20 times faster thanair making it especially good for heating or cooling. When using an isopropylbath the cold trap can get down to -67 or below which is more than aduaquate totrap terpenes of all kinds. The trap is so cold that water will collect insignificant quantities and freeze covering the surface area of the trap. Thereduced surface area also reduces the traps overall efficiency.

IPA干冰(异丙醇)：干冰非常冷，但很难用干冰来冷却其他寒冷的东西。这是因为干冰的表面积有限，空气是热能的劣质导体。为了提高效率和“冷却"更快，可以使用液体介质，如异丙醇或防冻剂。热量(热能)通过水传递的速度几乎是空气的20倍，这使得它特别适合加热或冷却。当使用异丙基浴时，冷阱可降至-67或以下，这比阿杜奎特更能捕获各种萜类化合物。这个陷阱太冷了，所以水会大量聚集，并冻结在陷阱的表面积上。减小的比表面积也降低了陷阱的整体效率。

Liquid Nitrogen: Liquid nitrogen is theultimate extreme cold, boiling at -320.4°F Liquid Nitrogen is cold enough toFreeze gasses such as butane or propane. Nothing gets through a liquid Nitrogencold trap because almost everything condenses at -300 degrees. Liquid nitrogen coldtraps are used in ULTRA high vacuum applications in order to increase pumpingefficency. Liquid Nitrogen is so cold that Liquid oxygen can form creating apotentially dangerous situations. Extra precautions must be taken in order topurge oxygen from the system in order to make it safe to use. Liquid Nitrogenis so cold that its used in ultra high vacuum applications to keep ALLcontaminants from reaching the pumping system. It is also important to note thetrap is so cold that water will collect in significant quantities and freezecovering the surface area of the trap. The reduced surface area also reducesthe traps overall efficiency.

液氮：液氮是极冷的，在-320.4度的温度下沸腾，液氮的温度足以冻结气体，如丁烷或丙烷。没有任何东西能通过液氮冷阱，因为几乎所有的东西都在-300度时凝结。液氮冷阱用于超高真空，以提高抽运效率。液氮太冷了，液氧会形成潜在的危险环境。必须采取额外的预防措施，以便清除系统中的氧气，使其安全使用。液氮是如此的冷，以至于它被用于超高真空应用，以防止所有污染物到达抽吸系统。同样重要的是要注意到陷阱是如此的寒冷，以至于水会聚集在重要的地方。

Keeps the vacuum pump clean.

保持真空泵清洁。

Keeps corrosive chemicals out of the vacuumpump.

使腐蚀性化学物质远离真空泵。

Collects Terpenes and other volatilecompounds

收集萜类和其他挥发性化合物

Achieve faster vac down time

实现更快的真空停机时间

Achieve deeper vacuum levels

达到更深的真空水平

Prevents oil from the vacuum system fromentering the system

防止真空系统中的油进入系统