Abstract:
In a method of, and an apparatus for accelerating air or gas exchange during cyclical operation of a pressure chamber with the aid of a pumping device connected to the pressure chamber, and with the aid of a compressor for at least partially compressing the air or gas, the steps include filling the pressure chamber with compressed air or gas through the compressor, thereafter discharging the air or gas from the pressure chamber, and operating the pumping device during at least one of the filling or discharging steps.
Abstract:
Improved sealing system between an enclosure of brittle material and a metal apparatus for carrying out chemical reactions, in which a connection member (6) is mounted over the open end (2') of the enclosure (2), with the interposition of a toroidal seal (9) between the opening into the enclosure and the underside of the connection member; a supplementary toroidal seal (11) is inserted between the lateral exterior wall of the enclosure (2,2') and the bore of the connection member (6).
Abstract:
The invention provides pressure protection for the interior casing of hydrogenation reactors by the use of a manifold interconnecting the annular chambers of the aforesaid reactors with the processed-gas vapor path whereby process-conditioned pressure changes generated during the reaction process are simultaneously balanced. As a result, the interior casings of the reactors which define the reaction vessel can be made of relatively thin material as compared to conventional reaction vessels.
Abstract:
A portable vacuum device for carrying out in situ bonding processes wherein the device is capable of encompassing a work site area, creating a vacuum thereabout thereby permitting the patching and repair of the workpiece through a heat and pressure process. Also disclosed is a unique process using the device of invention.
Abstract:
A spiral heat exchanger includes a vessel, a plurality of concentric sheet metal spirals situated in the vessel and defining first and second spiral flow channels for respective first and second fluids for effecting a heat exchange therebetween; first and second closure plates extending perpendicularly to the vessel axis and covering the spirals at opposite spiral edges thereof; and mounting bars pressing the closure plates against axially opposite edges of the spirals. The first closure plate defines a first axially oriented opening and the second closure plate defines a second axially oriented opening providing, in the first flow channel, an inlet and an outlet for the first fluid. The vessel comprises a cylindrical vessel shell entirely surrounding the spirals. The first closure plate has a radially outer circumferential edge surrounded by the first axially oriented opening and the second closure plate has a radially inner circumferential edge surrounding the second axially oriented opening, whereby the first axially oriented opening communicates with a radially outer part and the second axially oriented opening communicates with a radially inner part of the first flow channel.
Abstract:
A vessel includes an outer wall and an inner wall arranged at a distance therefrom within the vessel and leaving an annular space relative to the outer wall. The inner wall is supported on the outer wall so as to allow for relative movements. In order to provide a vessel with which the danger of oscillations of the inner wall is avoided, with which a simple supply of medium is possible, which is easy to clean and with which the danger of an implosion of the inner wall is reduced, the inner wall is comprised of individual annular sections subsequently arranged in an axial direction of the vessel. Each section is supported on the outer wall independently of the other sections. An expansion joint is provided between two neighboring annular sections each.
Abstract:
A support structure for a distribution grid to be mounted in a reaction vessel wherein the reaction vessel is formed with an inwardly-extending annular shoulder portion to which is mounted, such as by welding, a ring-member whereby the distribution grid is mounted on such support structure.
Abstract:
A replaceable inspection plug assembly and method for its use with pressure vessels. The plug assembly comprises a collar seal welded onto a pressure vessel outer wall, and a threaded plug removably threaded into the collar and the vessel wall. The plug has a shoulder portion which is seal welded to the collar. For removal of the plug, the seal weld is first machined away using a special cup-shaped rotary machining tool. The plug is then cooled and contracted relative to the collar, and is then unscrewed and removed. Following inspection of the vessel interior, the plug is replaced in the threaded hole and the plug shoulder portion is rewelded to the collar to provide a structurally-rigid and leak-tight joint without need for subsequent stress relieving the welded joint.
Abstract:
An apparatus for the distillation of a fluid containing at least two constituent components is disclosed. The apparatus includes a microwave energy source and a solar energy collector, both of which may be used to heat a subject fluid to a greater temperature for the purpose of distillation of same. Further, the disclosed invention combines a vacuum within the apparatus to facilitate operation and enhance the overall energy efficiency of the apparatus.
Abstract:
An improved pressure-activated interlock system for a pressure vessel such as a pressure fryer, the interlock system includes a safety lock which cooperates with a latching mechanism to prevent opening of the pressure vessel while potentially hazardous pressure levels exist within the vessel. The safety lock includes a pin and associated solenoid actuator mounted on an arm which both mounts the latching mechanism and also serves to lift the lid of the pressure vessel. The existence of pressure conditions of a given level within the pressure vessel causes the solenoid to force the pin into engagement with one of a plurality of spaced radial slots formed in a hub portion of the latching mechanism, thereby preventing operation of the latching mechanism and thus opening of the pressure vessel. The solenoid is actuated by means of a pressure switch which directly senses the pressure within the pressure vessel.