Method and device for feeding a system for generating and distributing vapor condensable into make-up liquid
OwnerPierre E. Regameyinventor
Life of this patent
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Abstract
In a system of production, distribution and utilization of condensable vapor with recovery of the condensates in a closed container, a method for forced delivery of condensates consisting in awaiting the obtention of a predetermined level of filling of the container, in isolating from the outside the upper space of the container and in applying at the free surface of the contained liquid a sufficient additional vapor pressure to allow the total available gas pressure to be substantially equivalent to the sum of the necessary net geometrical height of delivery and the down-stream flow pressure losses to be overcome.
Claims39
In a system, having at least one vapor generating boiler, one vapor utilizing condenser for production, distribution and utilization of condensable vapor, in a closed circuit wherein the pressure and temperature are substantially constant everywhere and identically the same at all points except for the pressure losses, with recovery of at least part of the condensates discharged by guided, preferably substantially dry and at least for the most part thereof generally gravitational return-flow in at least one closed container forming a main buffer-tank located at a general low point a method in particular for intermittent forced delivery of said condensates, for any selected one of the following purposes:
- direct reintroduction into said vapor-generating boiler, delivery into a higher-pressure system, passing of a geometrical rise such as a pitch-retaining arrangement by the discharge flow of condensates, the said method consisting in awaiting the obtention of a predetermined maximum level of filling of the said container with liquid;
- in isolating from the outside the upper space of the said container containing the gaseous phase by either one of the following procedures:
- cutting off any, at least unidirectional, fluid communication with at least the up-stream portion of the said system, stopping the up-stream inflow and preventing any return of the down-stream current of condensates into the said container;
- and in applying, at the free surface of the contained liquid, a sufficient additional vapor pressure to allow the total available gas pressure to be substantially equivalent to the sum of the necessary net geometrical height of delivery and the down-stream flow pressure losses to be overcome.
A device in a system having at least one vapor generating boiler, one vapor utilizing condenser for production, distribution and utilization of condensable vapor in a closec circuit wherein the pressure and temperature are substantially constant everywhere and identically the same at all points except for the pressure losses, with recovery of at least part of the condensates discharged by guided, preferably substantially dry and at least for the most part thereof generally gravitational return flow in at least one closed container forming a main buffer-tank provided with at least one level controller having at least two mutually opposite working limit positions, viz. a maximum limit position and a minimum limit position, and mounted in an inclined conduit for the descending return of the condensates, ending into the aforesaid boiler, said main buffer-tank being placed at either one of a general low point to form a pumping substation for reintroduction into the boiler and of, a local low point at a pitch-retaining pipe rise to form a lift pumping sub-station for the passing of a geometrical rise, the respectively up-stream and down-stream portions of the said conduit being connected to the respectively upper and lower portions of the said main buffer-tank, with a check valve intercalated in the said down-stream conduit portion, said device further comprising means for producing vapor through either one of additional introduction and of local production of vapor in the upper space of the said main buffer-tank, the said means comprising a switching member connected by a remote-control transmission to the monitoring member of the said level controller, whereas, a check valve is mounted in series in the said up-stream conduit portion.
In a method for feeding vaporizable liquid to a system for producing, distributing and utilizing condensable vapor wherein the system includes at least one boiler, a vapor distributing system having a point of vapor supply and at least one point of mechanical condensate discharge a condensate return system including at least one buffer-tank for holding and temporarily storing all the condensates for return to the said boiler and a source of vaporizable make-up liquid for supplying said system, the method including the steps of producing vapor in the boiler in a closed loop circulation at a substantially constant temperature and pressure except for pressure losses, on the one hand, in the vapor distributing system between the vapor supply point and at least one of the mechanical condensate discharge points, and on the other hand, in the condensate return system between the point of discharge and at least one of the buffer tanks, with the pressure in the condensate return system no higher than the pressure in the vapor distributing system and effecting return of the condensates to the boiler under at least one of gravitational force and the motive action of the vapor within said system, and the impovement comprising the step of directing all the vaporizable make-up liquid to the collecting tank to supply the boiler with its total vaporizable liquid requirement.
Dependencies are inferred from the claim text.