Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7270086 | Steam generator A stream generator wherein a continuous evaporating heating surface is disposed in a heating gas duct through which a heating gas flows in an approximately horizontal manner. The continuous evaporating heating surface comprises a plurality of steam-generating pipes ... | 09/18/2007 |
| 6990930 | Steam generation apparatus and method In one aspect, the invention provides a steam generation apparatus that is liquid fuel fired and addresses conversion of gaseous fuel SIB units to operate with liquid fuel. The invention also relates to a conversion unit for a steam injection boiler, a method for co... | 01/31/2006 |
| 6957630 | Flexible assembly of once-through evaporation for horizontal heat recovery steam generator A steam generator is disclosed herein. The steam generator includes an inlet manifold, a discharge manifold, a heating gas duct, and at least one once-through heating area in the heating-gas duct. The once-through heating area is formed from multiple single-row head... | 10/25/2005 |
| 6951106 | Integration construction between a boiler and a steam turbine and method in preheating of the supply water for a steam turbine and in its control The present invention concerns an integration construction between a steam boiler provided with a combustion chamber and a steam turbine. The steam is conducted from the steam boiler (10) along a connector to the steam turbine (11) for rotating an elec... | 10/04/2005 |
| 6907846 | Condensing gas boiler having structure of preventing corrosion caused by using heterogeneous metal A condensing gas boiler having a corrosion prevention structure of preventing corrosion caused by using heterogeneous metal is provided, which includes a casing provided with a combustion chamber therein; a present heat exchanger arranged in the casing, which includ... | 06/21/2005 |
| 6508206 | Feed water heater A feedwater heater for a steam generator or heat recovery boiler or waste heat boiler through which hot gases pass includes two sections which are located side by side so that the temperature of the hot gases at the upstream face of each section is essent... | 01/21/2003 |
| 6460490 | Flow control system for a forced recirculation boiler A forced-recirculation boiler (FRB) type of heat-recovery steam generator is applied to a ship-propulsion application of the recuperative dual-fluid engine. Such boilers generally include an economizer, evaporator and superheater, and incorporate a steam ... | 10/08/2002 |
| 6427636 | Method and plant for heating a liquid medium The invention relates to a method of heating a liquid medium by means of a first thermal system (2, 3, 4, 7, 12, 13) and at least one second thermal system (5, 6, 6A, 15, 16) following said first thermal system (2, 3, 4, 7, 12, 13), which thermal systems ... | 08/06/2002 |
| 6401667 | Method and plant for heating a liquid medium A method of heating a liquid medium by means of a first thermal system and at least one second thermal system following the first thermal system and a plant for carrying out the method. The thermal systems each have at least one heat exchanger through whi... | 06/11/2002 |
| 6189491 | Steam generator A steam generator which is both suitable for a horizontal mode of construction and offers the advantages of a continuous steam generator. According to the invention, a steam generator has at least one continuous heating surface disposed in a duct where ho... | 02/20/2001 |
| 6173679 | Waste-heat steam generator For achieving a high plant efficiency, a waste-heat steam generator, in particular for a combined-cycle power plant, has a number of heating surfaces heatable by a flue gas and carrying a medium to be heated. The steam generator can be operated at critica... | 01/16/2001 |
| 6071383 | Distillator A distillator has an outer casing, a boiling device disposed in the outer casing, a hot water box disposed in the outer casing, a cold water box disposed in the outer casing, a first faucet disposed on the hot water box, a second faucet disposed on the co... | 06/06/2000 |
| 5979549 | Method and apparatus for viscosity reduction of clogging hydrocarbons in oil well Method and apparatus for reducing the viscosity of clogging hydrocarbons in an oil well. The apparatus is preferably trailer mounted for portability. It includes a tube type heat exchanger enabling heated gases to pass within feed water coils to heat the ... | 11/09/1999 |
| 5924389 | Heat recovery steam generator The water flow circuit for a heat recovery steam generator includes both a low pressure circuit and a high pressure circuit. Both circuits are designed for once-through flow and both include evaporators with rifled tubing. A pressure equalizing header may... | 07/20/1999 |
| 5878675 | Flue gas desulfurizer, boiler equipment and thermal electric power generation equipment A flue gas desulfurizer having an absorption tower for bringing untreated flue gas into gas-liquid contact with an absorbent slurry, wherein there is provided heat recovery means for recovering heat from the flue gas passing through the flue gas inlet sec... | 03/09/1999 |
| 5775266 | Steam generator In a steam generator (1) having, downstream of the fire-box (7), a radiant part and, subsequent thereto, a convective part, the latter essentially comprising, connected in series on the flue-gas side, contact heat exchanger (18), superheater (9) and econo... | 07/07/1998 |
| 5765509 | Combination plant with multi-pressure boiler A mixed-pressure waste-heat boiler (7) has a forced-flow steam generator, essentially composed of a low-pressure economizer (15), of a low-pressure drum (17) and of a low-pressure evaporator (16), and a once-through forced-flow steam generator, essentiall... | 06/16/1998 |
| 5762031 | Vertical drum-type boiler with enhanced circulation A vertical boiler with horizontal evaporator tubes is provided. The evaporator is divided into two sections, which are connected in parallel to the drum. The first evaporator section relies on the feedwater pump to provide forced circulation. The second e... | 06/09/1998 |
| 5709173 | Method and apparatus for controlling combustion air in a boiler plant A method for controlling combustion air in a boiler plant, where combustion air is supplied into a boiler located in a boiler building, comprises the steps of determining a ratio of air flow inside the building to air flow outside the building on the basi... | 01/20/1998 |
| 5687674 | Steam power plant for generating electric power A steam power plant for generating electric power has a fossil-fuelled boiler, a water-steam cycle for generating high-tension, superheated steam for a steam turbine, an economizer to transmit heat from flue gas to the feed-water, an air preheater to tran... | 11/18/1997 |
| 5673634 | Incineration plant with heat exchanger An incineration plant includes a heat exchanger arranged in a flue gas flow following a reduction stage for nitrogen oxides and in front of a flue gas dust collector, and a heat transfer medium circuit for absorbing heat from the heat exchanger in the flu... | 10/07/1997 |
| 5293842 | Method for operating a system for steam generation, and steam generator system A method for operating a system for steam generation includes generating steam from water by indirect heat exchange with hot flue gas, by first preheating condensed water and then evaporating the preheated water at high pressure. The method further includ... | 03/15/1994 |
| 4799461 | Waste heat recovery boiler A waste heat recovery boiler comprising heat exchange rate switching means for controlling the rate of heat exchange between an exhaust gas and feedwater in a heat exchanger by changing the state of the feedwater in accordance with the concentration of su... | 01/24/1989 |
| 4707991 | Multiple reactor cyclic velox boiler plant A dual or multiple combustion chamber is described for use with cyclic velox boiler plants wherein one or more inner reactors are fastened inside one or more of the combustion containers of the cyclic velox boiler. These inner reactors are filled with and... | 11/24/1987 |
| 4660511 | Flue gas heat recovery system A method and apparatus for recovery of heat from the flue gas of the combustion furnace of a steam boiler or power generation plant uses a heat pump heat extracted from a lower temperature point in the system to a higher temperature point in the system. T... | 04/28/1987 |
| 4641606 | Cell boiler A furnace having a fire box at one end of a multi-unit cell boiler receives combustible refuse and delivers hot combustion gases through passages between water cells of the multi-unit cell boiler. The combustion gases enter an exhaust stack at the far end... | 02/10/1987 |
| 4640233 | Model steam generator An improved model steam generator for simulating the conditions within a nuclear steam generator in order to monitor the condition of the heat exchange tubes and tubesheet of the nuclear steam generator is disclosed herein. The improved model steam genera... | 02/03/1987 |
| 4635588 | Heaters for thermal energy transformation installations A heater comprising two separate tube nests of which one (29) heats the circulating water by condensation and supercooling and the other (39) heats a partial flow of this water by the desuperheating of steam. Steam is admitted through pipe (16). The foreg... | 01/13/1987 |
| 4550687 | Apparatus for operating a high pressure boiler The invention relates to a process and to a heat exchanger (8) intended in particular for performing the process, for operating a high-pressure boiler (1), having consuming units (3', 3", 3'") connected to the high-pressure boiler (1), the condensate from... | 11/05/1985 |
| 4491093 | Energy and water recovery from flue gases Energy and water are recovered from flue gases by cooling them to a temperature sufficiently below the acid dew point temperature by contact with an aqueous stream so as to recover the sensible heat and to reduce the water content of the flue gases by abo... | 01/01/1985 |
| 4455837 | Cyclic velox boiler A cyclic velox boiler is described wherein solid carbonaceous fuels are burned in pressure vessel containers by cyclic compression and expansion with air or with air and steam as usual gas reactants. During compression air is forced deeply into the pores ... | 06/26/1984 |
| 4393816 | Thermodynamic method for steam-water separation A thermodynamic method is described and claimed for improving the quality of wet steam produced by conventional and once through type boilers. Moisture entrained with such steam is first separated in a steam-water separation vessel. The separated moisture... | 07/19/1983 |
| 4305452 | Method of pre-heating boiler feed water A method of pre-heating feed water for boilers is disclosed which utilizes the exchange of heat between the tube side of a heat-exchanger which contains de-salinated and de-ionized water and the shell side which contains hydrocarbon vapors boiling in the ... | 12/15/1981 |
| 4304197 | Condensate recovery system A condensate recovery system wherein a condensate receiver is provided between a boiler and a feed water tank with condensate being introduced into the condensate receiver during a period when water is not being fed to the boiler and with water being fed ... | 12/08/1981 |
| 4300536 | Auxiliary hot water boiler with solar heater and heat exchange system An auxiliary hot water boiler and heat exchange system including a solar heater and adapted for use with a conventional, domestic closed loop hot water heating system and a conventional, domestic hot water heater. A first heat exchanger connected with a s... | 11/17/1981 |
| 4258668 | Closed pressurized feed water system supplying flash steam to a lower pressure process A closed pressurized feed water system supplying flash steam to a lower pressure process and with no steam loss in the closed system. The flash steam delivered to the lower pressure process is sufficient to reduce the pressure in the feed water system so ... | 03/31/1981 |
| 4173949 | Feedwater preheat corrosion control system An improved arrangement for preheating feedwater in a steam boiler system prior to the feedwater entering a fuel economizer in order to prevent corrosion due to condensation of flue gas in the fuel economizer and in the exhaust of the boiler system. The f... | 11/13/1979 |
