摘要:
In order to solve the numerous problems with existing steam, vacuum, and hot water heating systems, presented are novel systems and methods of vapor vacuum heating having several improvements over the prior art, including: condensate return which can operate without steam traps; naturally-induced vacuum; improved vacuum pump operation for sustaining vacuum in such systems; liquid lift apparatus for use with such systems; and other improvements. All innovations presented herein make vapor vacuum heating more efficient and economical for industrial, commercial, and home applications. A field test conducted with these innovations show results of about 26-50% reduced energy usage, implying significant energy savings from the use of the present invention over current heating systems.
摘要:
In order to solve the numerous problems with existing steam, vacuum, and hot water heating systems, first presented is a novel system and method for a vapor vacuum system having low temperature condensate return which can operate without steam traps in both single-pipe and dual-pipe configurations. Secondly is disclosed systems and methods for integrating the disclosed vapor vacuum system with a condensing boiler. Thirdly is presented several systems and method of operating radiators having low temperature condensate return with the disclosed vapor vacuum system. Finally is presented condensing vacuum boiler designs that can be utilized with the disclosed vapor vacuum system. Also presented are embodiments having naturally-induced vacuum and utilizing district heat as well as combined heat and power. All innovations presented herein make vapor vacuum steam more efficient and economical for industrial, commercial, and home applications.
摘要:
A system of production and distribution of condensable vapor in a close circuit, at approximately constant pressure and temperature serving two systems of stations utilizing vapor at respectively high pressure and low pressure, comprising a transfer lock arrangement, for transferring condensates from a low-pressure condensate reserve to a high-pressure condensate reserve, wherein the low-pressure condensate return line and the drain conduit connecting the two condensate reserves are respectively provided with two motor-actuated stop valves and whose servo-motors are respectively connected to the monitoring member of the level controller of the low-pressure condensate reserve.
摘要:
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.
摘要:
A tank for receiving and storing condensation has walls constructed of a plurality of laminations of fiberglass cloth and epoxy resin. A metallic plate, preferably of an aluminum alloy is molded into one of the walls for supporting a condensate pump. A condensate return opening in the metallic plate is aligned with a supply port in the pump so that condensation may be drawn from the tank by the pump.
摘要:
A dual fluid heat exchange system is presented that provides a stable output temperature for a heated fluid while minimizing the output temperature of a cooled fluid. The heated and cooled fluids are brought into thermal contact with each other within a tank. The output temperature of the warmed fluid is maintained at a stable temperature by a re-circulation loop that connects directly to the mid portion of the tank such that the re-circulated fluid flow primarily warms only a re-circulation section of the tank. The other, lower flow rate, section of the tank may be positioned so that it has a cooler temperature and thus serves to increase the efficiency of the heat exchange by extracting extra heat energy out of the cooled fluid before it leaves the tank. Alternatively, the low flow rate section of the tank may be warmer than the re-circulated section, and thus allow the re-circulated section to be cooler than the output temperature of the warmed fluid.
摘要:
In order to solve the numerous problems with existing steam, vacuum, and hot water heating systems, presented are novel systems and methods of vapor vacuum heating having several improvements over the prior art, including: condensate return which can operate without steam traps; naturally-induced vacuum; improved vacuum pump operation for sustaining vacuum in such systems; liquid lift apparatus for use with such systems; and other improvements. All innovations presented herein make vapor vacuum heating more efficient and economical for industrial, commercial, and home applications. A field test conducted with these innovations show results of about 26-50% reduced energy usage, implying significant energy savings from the use of the present invention over current heating systems.
摘要:
A blasting arrangement (10) includes drillholes (30) in a rock mass (20). Blind ends (32) are drilled to a desired level and, if necessary, are adjusted as shown at (62) to said level. Each hole (30) is plugged by means of a plug (42), which is protected by non flammable buffer material (44), at a level (40) spaced from the end (32). Explosive (50) is charged above the level (40) and the hole is tamped, shown at (60). The holes are detonated desirably by detonators (52), forcing the plugs (42) downwardly and compressing air in chambers (34) above the ends (32). The weakest part of each hole, around the end (32), is split causing a three dimensional zone of weakness at the level of the ends (32). Air forced into the zone of weakness causes a fracture zone (70) at that level, inhibiting propagation of blasting shock waves and protecting the material underneath the level of the ends (32).
摘要:
A method for thermally controlling a utilization apparatus heated with condensable steam, mounted in a live steam distribution plant comprising a condensate drain line system for dry gravity return of the condensates which also contains live steam, said method consisting in a selectively variable storage of the condensates through modulated retention within said utilization apparatus, wherein the improvement comprises the step of preventing the collected condensates which are cooled through retention thereof from directly contacting the hot live steam present in said condensate drain line system.