Method and device for feeding a system of generation and distribution of vapor condensable into make-up liquid
OwnerPierre E. Regameyinventor
Life of this patent
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Abstract
A closed-loop, steam generating and distributing system with uniform fluid temperature and pressure everywhere and devoid of any steam-trap or like phase separator, comprising a boiler, a receiver collecting condensates through gravity feed, a pump drawing condensates from said receiver and forcing them back into said boiler, a water make-up tank connected through a feed pipe-line and a feed pump to the bottom of said receiver, and a condensate bleed duct leading from the discharge side of the condensate pump to the top of said receiver through a restriction.
Claims42
A closed loop system having at least one vapor producing evaporating boiler, at least one vapor utilizing condenser, and at least one condensate recovery collector, an improved automatic and continuous method of recovering and distributing condensate within such system and of introducing fresh liquid into the system, wherein said condensate and liquid is binary consisting of vapor and a liquid phase (condensates) and is at pressures and temperatures approximately constant everywhere and identically equal (disregarding the local flow-pressure losses) in the system between a point of supply of vapor to and across the vapor utilizing condenser and a point of delivery of the condensates to the said condensate collector, with recovery of at least the most part of the condensates by natural return-flow to the collector tank, the said method consisting in replenishing the boiler from two sources of make-up liquid constituted respectively, on the one hand, by a supply of external input feed-liquid and on the other hand, by the recovered condensates, and of providing a supply flow-rate which may be controlled automatically according to the instant sensed level of liquid in the collector tank within a defined range of controlled values between two limits, viz. an upper or feed shut-down limit and a lower or maximum feed flow-rate limit, and of providing introduction of the make-up liquid from the collector tank directly into the boiler by forced circulation, according to the instant sensed level of liquid in the boiler within a defined range of controlled values between two limits, viz. an upper or feed shut-down limit and a lower or maximum flow rate limit, and where the reintroduction is continuous and depends only on the actually detected physical presence of the condensates and the interlocked follow-up relationship with the sensed level of liquid in the boiler.
In a closed loop-system of production and distribution of condensable vapor having at least one vapor producing evaporating boiler, at least one vapor utilizing device producing liquid condensates, and at least one condensate recovery collector, the combination in such system that said liquid is binary consisting of two phases, namely viz. a gaseous phase (vapor) and a liquid phase (condensates) and of having such liquid at pressures and temperatures approximately constant everywhere and identically equal at all points between a point of supply of vapor to and across the vapor utilizing device and a point of delivery of the condensates to said condensate collector, a feed tank for the supply of make-up feed liquid and at least one supply conduit having therein a piloted power-driven feed pump connecting said feed tank to said condensate collector;
- at least one circuit of condensate discharge and return line connected between said condensate collector and said boiler and including at least one condensate direct-reintroduction piping having therein a main circulation impelling member for the direct reintroduction of the said condensates into the said boiler;
- and automatic control means for the flow-rate of direct reintroduction of the condensates into said boiler and of the supply of make-up feed liquid into the condensate collector, said control means being interlocked in follow-up relationship respectively, with the amount of vaporizable liquid remaining in the boiler and of the instant amount of available condensates in the condensate collector.
In a closed loop system utilizing a vaporizable-condensatable liquid and including a boiler with a liquid input and a high temperature vaporous output, a heat utilizing device for receiving the vaporous output and thereby releasing condensate, and a buffer-tank for collecting the condensate, an improved method for automatically and continuously maintaining sufficient liquid in the system, comprising the steps of maintaining a minimum level of liquid in the buffer-tank by detecting the level of liquid therein and by admitting liquid from a source outside of the system into the buffer-tank responsive to detected low liquid levels, of utilizing the buffer-tank as a source in the system of continuous liquid and of continuously withdrawing liquid therefrom and rendering the same at a higher pressure than that in the boiler, and of maintaining a minimum liquid of level in the boiler by detecting the level of liquid therein and by variably admitting to the boiler such part of said withdrawn liquid as needed responsive to detected low liquid levels and of bypassing any remaining withdrawn liquid through a fixed resistance back to the buffer-tank.
In a closed loop system utilizing a vaporizable-condensatable liquid and including a boiler with a liquid input and a high temperature vaporous output, a heat utilizing device for receiving the vaporous output and thereby releasing condensate, and a buffer-tank for collecting the condensate, the combination therewith of means for automatically and continuously maintaining sufficient liquid in the system, comprising first means for detecting the liquid in said buffer-tank, means for providing a source of liquid from outside of the system, means for admitting liquid from the source means to the buffer-tank responsive to the first liquid detecting means detecting low levels of liquid, means for continuously withdrawing liquid from the buffer-tank and rendering the same at a higher pressure than that in the boiler, second means for detecting liquid in the boiler, means for variably admitting to the boiler such part of said withdrawn liquid as needed responsive to the second liquid detecting means detecting low levels of liquid, and means for bypassing any remaining withdrawn liquid back to the buffer-tank.
Dependencies are inferred from the claim text.