摘要:
A heater for fluid flow components is disclosed. The heater has heat transfer surfaces that engage the component. The transfer surfaces are mounted on jaws that are movable to engage the component. The jaws have massive portions that act as heat reservoirs to maintain a constant temperature in spite of rapid cooling when gas is allowed to expand freely from the component. The jaws are heated by electrical resistive heating elements that are sealingly mounted within the massive portions. The sealing engagement allows the heater to be used in hazardous environments.
摘要:
This invention relates to an improvement in a process and apparatus for delivering ultra high purity liquid carbon dioxide to a point of use at pressures above ambient without pumping. In the process a high purity carbon dioxide feed is charged to a vessel and at least partially solidified. Once filled, the slush or solid is isochorically heated, i.e., heated at constant vessel volume whereby the solid phase carbon dioxide is converted to a liquid. Liquid, then, is withdrawn from the vessel at a desired pressure at a rate at which the solid phase carbon dioxide is converted to a liquid. The improvement resides in effecting partial solidification and recycle of carbon dioxide.
摘要:
This invention relates to an improvement in a process and apparatus for delivering ultra high purity liquid carbon dioxide to a point of use at pressures above ambient without pumping. In the process a high purity carbon dioxide feed in gaseous or liquid form is charged to a vessel and at least partially solidified, i.e., converted to a solid phase. As the liquid is converted to a solid phase, additional liquid is added until the vessel is at least substantially filled with slush. Once filled, the slush or solid is isochorically heated, i.e., heated at constant volume whereby the solid phase carbon dioxide is converted to a liquid. Liquid, then, is withdrawn from the vessel at a desired pressure at a rate at which the solid phase carbon dioxide is converted to a liquid.
摘要:
A container for holding a solid, liquid and/or gaseous phase product therein and for use within a transportable or stationary support structure. The container maximizes the compressed product volume contained therein and prevents liquid and/or contaminant entrainment during gaseous product delivery from liquid phase product. The system allows for product withdraw when the level is above the delivery valves using, at a minimum, two delivery legs linked by a compartment or housing that connects the delivery point and a container head space via a removable manway.
摘要:
Methods are provide for dispensing a product to a user, the product releasably incorporated within a carrier. In one embodiment, the method comprises the step of providing a first user comprising at least one storage vessel for receiving and storing fresh and at least one vessel for receiving and storing spent. The method further includes the steps of: collecting spent from a storage vessel of the first user; detecting a chemical or physical property of the collected spent; and comparing the detected chemical or physical property of the collected spent with a predetermined criteria. In a second embodiment, the method comprises the step of providing the first user, and further includes the steps of: determining an estimated amount of product to be transferred to the first user; optionally, collecting and validating information concerning the purchaser; transferring fresh to the storage vessel of the first user; collecting measurement data concerning fresh transferred from the first user; removing spent from a storage vessel of the first user; collecting measurement data concerning spent collected from the first user; optionally, calculating the net amount of product transferred; and determining whether the transfer of fresh and removal of spent has been performed on a substantially equal exchange basis. In a third embodiment, the method comprises providing a first user and a seller, the seller transferring fresh to the first user, collecting measurement data, and assigning a monetary price to be charged to the user.
摘要:
A plate fin heat exchanger comprises a folded fin sheet comprising fins wherein the fin sheet comprises a plurality of perforations, such plurality of perforations are positioned on the fin sheet in parallel rows when such fin sheet is in an unfolded state, such parallel rows of perforations on the fin sheet comprise a first spacing between the parallel rows of perforations (S1), a second spacing between sequential perforations within the parallel row of perforations (S2), a third spacing (or offset) between the perforations in adjacent parallel rows of perforations (S3), and a perforation diameter (D), wherein the ratio of the first spacing between the parallel rows of perforations to the perforation diameter (S1/D) is in the range of 0.75 to 2.0, and wherein the angle between the fins and the parallel rows of perforations is less than or equal to five degrees (≦5°).
摘要:
Systems and methods for distributing a product releasably incorporated within a carrier, and for removing the product and returning the carrier for rehabilitation. In one embodiment, the system includes a first supply loop comprising a manufacturing facility for releasably incorporating a product into a first carrier to form fresh. The first loop further includes transportation means for conveying fresh to a first user, the first user including a fresh storage vessel for receiving and storage of fresh. The first user further comprises means for removing product from the carrier to form spent, and a spent storage vessel for receiving, storing, and dispensing of spent. The loop further includes means for returning the spent to a rehabilitation facility of the spent to form fresh wherein a product is contained in a carrier. The carrier may be in any physical state such as for example, solid, liquid, vapor, plasma, or any combination thereof. In addition, the carrier may involve any known mechanism to capture, retain, or release product, for example, chemical reaction, adsorption, dilution, among others. Optionally, the invention comprises a second supply loop that received product liberated from the first supply loop, without exchanging carrier, fresh, or spent with the first supply loop. The invention thus provides for product transfer efficiently and economically with minimal possible losses of the carrier quantity and quality. Contamination of a carrier and/or unintended mixing of different carriers is avoided, or at least localized to limited quantities.
摘要:
Provided is a process and apparatus for separating a multi-component feed stream wherein a porous separator is used to effectively create, via permeation and phase change, at least three fractions of differing compositions.
摘要:
Systems and methods for supply and delivery of a product incorporated into a carrier are provided. In one embodiment, the invention comprises a system that comprises a fresh storage vessel for receiving and storing fresh. The system further includes a fresh transferring apparatus communicably linked to the fresh storage vessel for transferring of fresh to a user when the user is connected to the transferring apparatus. The system further includes a spent storage vessel for receiving and storing spent (spent being defined as fresh with at least some product and/or product element removed therefrom), and a spent transferring apparatus communicably linked to the spent storage vessel for transferring spent from a user when the user is connected to the transferring apparatus. Optionally, the system further includes of an intermediate spent storage vessel disposed in the communicable connection between the spent transferring apparatus and the spent storage vessel. The intermediate spent storage vessel optionally includes a controllable communicable connection for selective transfer of spent from the intermediate storage vessel to a contamination storage vessel or the spent storage vessel. The carrier may be in any physical state or any combination thereof. In addition, the carrier may involve any known mechanism to capture, retain, or release product, for example, chemical reaction, adsorption, dilution, among others.
摘要:
Embodiments of vessels include personnel access provisions having welded or otherwise permanent connections that substantially reduce the potential for leakage into or out of the vessels by way of the personnel access provisions.