摘要:
Device for injecting a liquid into a tube and steam generator incorporating this device.The cannula has a divergent portion, means located on the bottom part of the cannula for centering the same and immobilizing it in translation relative to the tube, together with a sleeve surrounding the cannula. The means for centering and immobilizing the cannula in translation on the tube are constituted by a centering part, at least one slot and an inner cone formed in the sleeve, an outer cone formed on the bottom part of the cannula, said cones cooperating with one another, means being provided for elastically applying the outer cone to the inner cone.
摘要:
Joining means between two pipes, each provided with a collar having a given external diameter and able to compress a gasket between these two collars, said means having two flanges with aligned holes and an internal diameter smaller than the external diameter of the collars and tightening means traversing said holes making it possible to move the flanges together, whereby at least one of the flanges comprises an external cylindrical ring with an internal diameter larger than the external diameter of the collars and bearing parts disposed within said ring and in which are formed said holes, articulated on one lateral face of the ring, so as to be able to tilt into an overriding position in which the internal diameter of the flange substantially corresponds to the internal diameter of the ring.
摘要:
The axial pump makes it possible to deliver a fluid having a double gaseous-liquid phase at high flow rates. It is constituted by a one-piece rotor comprising a hollow shaft (10) onto which are shrunk pulsating systems (12). This rotor is placed within a body (2) constituted by a stack of washers (3) within which are fixed straighteners (14). Each straightener is constituted by two half-straighteners, so as to permit the installation of each straightener around the rotor. Everything is sealed by end flanges on which the rotor is mounted in rotary manner. The pulsating systems (12) can also be machined on the outer surface of the body (10).
摘要:
A converter of kinetic energy from a jet formed by a heat transfer fluid and a gas at high temperature, includes: at least one injector of the jet from at least one source of heat transfer fluid and of high-temperature gas, an impulse wheel mounted rotating secured to a shaft extending along an axis substantially perpendicularly to the injector and including a plurality of asymmetric blades, a tank surrounding said impulse wheel and at least one deflector extending underneath the blades.
摘要:
The two-pole plate is relatively lightweight and can be manufactured quickly and easily.It consists of a skeleton made with two thin plates (30) spaced by blocks (34, 45) between which a cooling fluid circulates. The fuel and oxidant manifolds supply the circulation channels (21I) machined by water jet in supply plates (20I, 20S) made of conducting composite, through the supply channels (33). These plates are bonded with a conducting glue onto the thin plates (30).Application to fuel cells.
摘要:
The system according to the invention prevents the effect of turbulence due to exhaust of gases via chimney from propulsion machines on aircraft carriers (1). It consists of creating internal circulation of water by means of a scope (3) of a circulation pump (4), an inlet chamber (6) in which exhaust gases from the thermodynamic machines of the Ship empty. Water nozzles are placed in this inlet chamber (6). The resulting mixture is evacuated via a pipe (7) and a mixing tube (8) terminating outside the ship, to the stern thereof, just above the water line. Application to aircraft carriers.
摘要:
A converter of kinetic energy from a jet formed by a heat transfer fluid and a gas at high temperature, includes: at least one injector of the jet from at least one source of heat transfer fluid and of high-temperature gas, an impulse wheel mounted rotating secured to a shaft extending along an axis substantially perpendicularly to the injector and including a plurality of asymmetric blades, a tank surrounding said impulse wheel and at least one deflector extending underneath the blades.
摘要:
The asynchronous discoidal electric motor has stator (1A, 1B) windings (13) and radial rotor bars (2) embedded in notches (11, 22) opened by a very narrow slit (11, 21). These slits (11, 21) and notches (12, 22) may be machined electrochemically using a wire. Application to asynchronous discoidal electric motors with winding embedded in the stator and with a cartwheel structure on the rotor.
摘要:
The plate exchanger comprises a plurality of flat parallel compartments formed between adjacent plates which are maintained in spaced relation by means of rings each having a T-shaped cross-section. The side arms of the T are welded to opposite edges of orifices formed in adjacent plates and the outwardly directed stem of the T is disposed between the plates. The interior of the array of spacer rings forms a header for the low-pressure fluid which flows through the compartments and a cylindrical tube extends through all the spacer rings in order to serve as an internal support.
摘要:
The steam generator is provided with a vertical cylindrical enclosure having a bundle of U-shaped tubes therein connected to inlet and outlet collectors through a tube plate at the bottom. An inner casing surrounding the tubes defines an annular chamber which communicates with the tube chamber adjacent the tube plate. A heater is provided about the outlet portion of the tubes within the tube chamber. An ejector pump supplying a secondary fluid is located in the annular chamber adjacent the heater for pumping secondary fluid through the heater. A portion of the heated secondary fluid is recirculated through the pump and the remainder is directed into the tube chamber. Vapor phase separators are provided on top of the inner casing to allow the passage of the vapor phase through an outlet in the enclosure while returning the liquid phase to the annular chamber.