초록 ▼

An energy efficient electrically operated steam generator is capable of producing pressure less high temperature as well as superheated steam. It comprise of main body (14) defined by side wall, roof (2) and open bottom, securely fixed to the rim of water holding tray (7). Said roof is provided with

An energy efficient electrically operated steam generator is capable of producing pressure less high temperature as well as superheated steam. It comprise of main body (14) defined by side wall, roof (2) and open bottom, securely fixed to the rim of water holding tray (7). Said roof is provided with steam outlet nozzles (16) to allow the steam to emerge out of the steam generator. A porous ceramic honeycomb (3) with plurality of parallel channels (4), and grooves (5) or holes (23) are created therein for inserting heating element (6). One end of all the channels (4) is always submerged in water (11) in tray (7), and the other end of most of the channels is open to the roof and both ends of the heating element are connected to the power source for heating the water to generate steam.

대표청구항 ▼

1. An energy efficient electrically operated low pressure high temperature steam generator, comprising: a) a main body (14) defined by side wall, roof (2) and open bottom, securely fixed to the rim of water holding tray (7) by means of joint (13), the tray (7) capable of holding water while said roo

1. An energy efficient electrically operated low pressure high temperature steam generator, comprising: a) a main body (14) defined by side wall, roof (2) and open bottom, securely fixed to the rim of water holding tray (7) by means of joint (13), the tray (7) capable of holding water while said roof (2) of the main body is provided with one or more steam outlet nozzles (16) to allow the steam generated to emerge out of the steam generator;(b) a porous ceramic body (3) with a plurality of channels (4), where one end of all the channels (4) is always submerged in water (11) in said water holding tray (7), and the other end of most of the channels open to the roof (2) of the main body (14);(c) an electrical resistance heating element (6) inserted into grooves (5) or holes (23) created in said ceramic body (3) such that surface of the heating element (6) is in close contact with the ceramic body (3), while the bottom most part of the electrical resistance heating element (6) is always above the maximum level (12) of water (11) in the tray (7) and both ends of the heating element are terminated at terminal ends (10) and the terminal ends (10) are connected to the power source for heating the water to create steam and the steam generator body is properly grounded. 2. An energy efficient electrically operated low pressure steam generator as claimed in claim 1, wherein said porous ceramic body comprises a low density porous and absorbent ceramic body. 3. An energy efficient electrically operated low pressure steam generator as claimed in claim 1, wherein said porous ceramic body comprises a porous ceramic honeycomb. 4. An energy efficient electrically operated low pressure steam generator as claimed in claim 3, wherein a secondary electrical heater (21) of suitable design is arranged at a distance of one or more inches above the ceramic honeycomb (3) on support brackets (22) in such a fashion that the steam emerging out of the vertically oriented channels (4) of the ceramic honeycomb (3) will pass through the secondary heat (21), which increases the steam temperature considerably while water is continuously fed to the tray (7) through the inlet port (8) and constant water level (12) is maintained by means of excess water drain pipe (9) or overflow lip (40) while the steam outlet nozzle (16) at the roof (2) of the generator allows the super-heated steam to be communicated to the usage area. 5. An energy efficient electrically operated low pressure steam generator as claimed in claim 4, wherein the secondary electrical heater (21) is bare coils of any known electrical resistance materials arranged in a frame supported on brackets (22) at a height of more than one inch over the ceramic honeycomb (3) in such a fashion that most of the steam passes through the bare heater coil arrangement and thus increase the steam temperature. 6. An energy efficient electrically operated low pressure steam generator as claimed in claim 4, wherein the secondary electrical heater (21) is a single or plurality of ceramic honeycomb heaters formed from honeycomb structures or monolith body made from electrically insulating and thermally resistance ceramic material, each provided with plurality of parallel passages or channels for the flow of steam and a row of parallel grooves formed within the ad-joining walls in which an electrical resistance heating element is positioned and arranged in a frame supported on brackets (22) at a height more than one inch over the ceramic honeycomb (3) in such a fashion that most of the steam passes through the bare heater coil arrangement and thus increase the steam temperature. 7. An energy efficient electrically operated low pressure steam generator as claimed in claim 3, wherein the ceramic honeycomb (3) has grooves (5) in a parallel arrangement at one end of the ceramic honeycomb channels (4) and the grooves have a passage (32) at both its ends for the heating element to pass from one groove (5) to the next groove (5) and the electrical resistance heating element (6) is selected from various configurations of heater element like straight wire, rod, coil, strip, tube in single length or multiple lengths or zig zag to provide the required heat for evaporation connected in series or parallel as the design demands and the bottom most part of the heating element (6) in all the grooves (5) is always well above the maximum water level, when this assembly is placed in the water tray of the steam generator with the grooves (5) facing the roof (2) of the steam generator. 8. An energy efficient electrically operated low pressure steam generator as claimed in claim 3, wherein body (14) is in communion with a larger reservoir (42) of water which in turn houses a pump (39) driven by a motor (37) capable of pumping the water (11) into the tray (7) with the ceramic honeycomb (3) while the tray has an overflow lip (40) on one of its walls with reduced height than the rest of its walls so as to limit the water level by overflowing excess water back into the larger reservoir (42) which in turn holds the bulk of the water (11a). 9. An energy efficient electrically operated low pressure steam generator as claimed in claim 3, wherein the resistance heating element (6) is terminated at both its by way of terminal ends (10) and the open area of the groove (5) over the heating element (6) is covered with a known ceramic fiber stuffing to reduce heat losses by radiation. 10. An energy efficient electrically operated low pressure steam generator as claimed in claim 3, wherein thin walled ceramic honeycomb in one or more number of pieces are stacked in a predetermined manner with all channels parallel to one another while the channel cross section is square or rectangular or hexagonal or triangular or round. 11. An energy efficient electrically operated low pressure steam generator as claimed in claim 3, wherein said steam generator is capable of producing super heated steam while totally avoiding the usage of high pressure boilers, high pressure pumps, valves, and/or pressure gauges. 12. An energy efficient electrically operated low pressure steam generator as claimed in claim 3, wherein ultrahigh purity water is produced by connecting a known water cooled condenser to the steam outlet nozzles (16). 13. An energy efficient electrically operated low pressure steam generator as claimed in claim 12, wherein it is capable of producing bacteria free water by employing a porous ceramic honeycomb with any known nano-silver coating in the submerged portion of the ceramic honeycomb (3) of the steam generator. 14. An energy efficient electrically operated low pressure steam generator as claimed in claim 3, wherein the main body (14) is made from SS316L or equivalent material, housing said porous ceramic honeycomb (3) made from material selected from alumina, cordierite, clay, steatite, zirconia, and mullite so as to absorb and hold water in a very fine dispersion, with plurality of parallel channels (4) all vertically oriented and having one or multiple layers of electrical resistance heating element (6) installed inside the drilled holes (23) provided in the ceramic honeycomb (3) in such a way that the heating element and the holes are both mutually parallel and both are perpendicularly positioned to the axis (15) of the honeycomb channel (4), the heating element will be at least 10 mm above the maximum water level (12) in the tray (7) while water inlet pipes (8) and excess water drain pipe (9) ensure maintaining constant level water (11) in the tray.