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7434546 |
Steam generator loose parts collector weir
A loose parts collection weir that is a nearly cylindrical structure that is integrally attached to the lower deck plate or sludge collector top plate of a steam generator to retain loose parts...
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7434545 |
Water heater and method of operating the same
A gas water heater device includes a combustion chamber for providing a gas flow, a pipe assembly, and a heat exchanger disposed over the combustion chamber including a plurality of thermal...
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RE40307 |
Inlet baffle for water heater
A baffle for slowing the incoming water flow into a booster heating tank so that the turbulence in the water tank is minimized. The baffle consists of an inner cap and outer cap which are...
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7314024 |
Steam generator comprising an emergency feed water device
The steam generator ( 1 ) comprises a first normal feed water device ( 8 ) and a second emergency feed water device ( 16 ) of the steam generator, comprising, respectively, a first toroidal header...
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7267083 |
Condensing heat exchanger with double bundle of tubes
The invention relates to a heat exchanger comprising a pair of tube bundles ( 21, 31 ) through which the fluid to be heated flows, one primary bundle ( 21 ) surrounding a cylindrical burner ( 40 )...
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7232471 |
Hydrogen generator and fuel cell system comprising the same
A hydrogen generator comprises a burner for generating a combustion gas, a reformer provided around the burner to generate a reformed gas containing hydrogen by a steam reforming reaction based on...
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7140328 |
Miniature vaporizers for use with chemical converters and energy devices
A miniature vaporizer for effectively vaporizing a process fluid (e.g., a liquid media) in small energy system applications, such as systems employing chemical reformers and fuel cells. The...
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7000571 |
Heat exchanger, and in particular a steam generator having a convex bottom
The steam generator ( 1 ) comprises an outer casing ( 2 ) with an axis ( 8 ) that is in a vertical disposition when the heat exchanger is in service, a bundle of tubes having straight portions that...
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6971335 |
Water heater
A water heater is provided in which neutralization process of drain is not required and an excellent heat efficiency is achieved. A route of exhaust gas which is passing through the main heat...
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6948453 |
Hydrocarbon cracking
A method for controlling fouling of a heat exchanger that operates downstream of a cracking furnace by injecting liquid water upstream of the heat exchanger.
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6914955 |
Heat exchanger tube support structure
A support plate for retaining tube array spacing within a heat exchanger tube and shell structure. The support plate having a plurality of individual tube receiving apertures formed therein. Each...
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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...
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6810837 |
Apparatus and methods for controlling flow in BWR steam dryers
A flow control apparatus for a boiling water nuclear reactor steam dryer is provided. The steam dryer includes at least one discharge plenum. In an exemplary embodiment, the flow control apparatus...
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6604492 |
Vaporizer
A vaporizer is provided for delivering vapor streams such as high purity streams to a processing destination, such as a wafer processing chamber. The vaporizer includes a heated base having one or...
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6516754 |
Convective heating system for liquid storage tank
A heating system for heating liquids, stored in a tank at low ambient temperature, has a heating chamber with an inlet and an outlet for convectively flowing liquid past a flameless heater. Cold...
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6494169 |
Evaporator and method for manufacturing same
An evaporator which is small, light and whose activating time is short. The evaporator has an atomizer for atomizing a fluid being supplied into a conduit for the fluid to be heated in a plate type...
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6435139 |
Waste heat boiler for cooling hot syngas
A waste heat boiler for cooling hot syngas in heat exchange with water under boiling pressure, consists of an outer pressure shell ( 1 ) having a water space ( 2 ) filled with boiling water up to a...
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6394042 |
Gas fired tube and shell heat exchanger
A gas fired tube and shell heat exchanger directs a flame directly into an inlet end of the tube bundle and the flame and exhaust are drawn through the tube bundle by an induced draft blower...
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6283068 |
Air-heated/hot-water type vaporizer and air-heated/hot-water type gas producing plant
The present invention provides an air-heated/hot-water vaporizer having a very high thermal efficiency and which is easy to handle for a long period of time. Hot water supplied to the inner tube 24...
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6235235 |
System for extracting sodium metal from sodium hydroxide and a reductant of natural gas
An apparatus and system for its use for a continuous production on an alkali metal, preferably sodium metal, by a reduction of the metal hydroxide with methane or natural gas as a reductant. The...
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6199515 |
Baffles for water heaters
A water heater baffle having an inlet and an outlet for the passage of water therethrough, the baffle being arranged to force the water entering the baffle through a labyrinth before exiting the...
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6173680 |
Steam generator comprising an improved feedwater supply device
The steam generator comprises a cylindrical outer jacket (2) arranged with its axis vertical, a bundle wrapper (4) arranged coaxially with respect to the outer jacket and a space (9) in which feed...
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6032616 |
Rapid response hot water heater
A hot water heater for generating substantial instantaneous hot water by positioning a plurality of burners adjacent one end of a heat transfer section. The heat transfer section includes an...
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5975030 |
Low-pressure feedwater preheater
A low-pressure feedwater preheater or heater in power station plants, heated with bleed steam and having a two-pass tube bundle of the tube sheet type of construction, has a carrier design for the...
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5838083 |
Device for breaking eddies at a surface submerged by a turbulent flow
A device for use with surfaces submerged in and moving in relation to a gas or liquid to eliminate surface flutter. Such flutter is caused by turbulence in the form of eddies formed in the gas or...
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5711257 |
Sleeved boiler-reactor
A sleeved boiler-reactor provides enhanced nucleate boiling and reduced risk of film-boiling within boiling tubes of the boiler-reactor, in the same manner as prior boiler-reactors of seam-welded...
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5687675 |
Device for vaporizing the diphasic mixture of a cooling circuit during a depressurizing procedure
Vaporizing device connected to a cooling circuit. In particular, it includes a receptacle (28) traversed by heat exchange tubes (26) which unite two pipes connected to a hot branch (3) and a cold...
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5549078 |
Device for superheating steam
The present invention relates to a heating device for submersion within a tank of water to boil the water to produce steam, and for superheating the steam, comprising an outer sleeve; an inner...
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5419391 |
Steam generator with axial flow preheater
An improved heat exchanger utilizing a primary heated fluid to vaporize a secondary fluid flowing axially therethrough including a preheater assembly located within a cold leg side of the heat...
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5396948 |
Heat exchanger, in which the supply of secondary fluid takes place in the upper part by means of an overflow
In a heat exchanger such as a steam generator equipping a nuclear power station the secondary fluid is injected into the upper part of an annular space (30) formed between an outer envelope (10)...
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5357906 |
Submersible liquid-to-liquid heat exchanger
A single port, internal liquid heat exchange assembly for heating domestic water from a free-standing, low pressure wood fired boiler. A threaded manifold fastener retains the assembly in...
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5347959 |
Steam generator supplied with secondary water from the bottom part
The secondary water supply for a steam generator is provided by a toroidal or semitoroidal collector (38) placed in the bottom of the annular recirculation space (32) of the generator, in a larger...
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5335629 |
Preheating steam generator
In a preheating steam generator, the secondary water is introduced into a preheating space (34) by deformable extensions (52) from inverted J tubes (50) fixed to a semi-torroidal supply collector...
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5329886 |
Steam generator
This patent discloses a secondary fluid supply system for a steam generator used in nuclear reactor power plants. The secondary fluid supply system comprises a secondary fluid (feedwater) inlet...
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5323736 |
Steam generator with device for the distribution of feed water and recirculation water in the secondary part
In a steam generator or boiler used in a nuclear reactor, the secondary water is supplied via at least one pipe (48) issuing directly into the bottom of an annular recirculation space (32) formed...
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5307802 |
High efficiency steam generator
A steam generator having two vaporization chambers filled with molten metal salts for sequential flash evaporation of preheated atomized water through multiple vaporization tubes in said respective...
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5259341 |
Hydro injection steam generator
A hydro injection system for generating steam from the heat exchanged between a stream of hot combustion gases and a countercurrent flow of warm water sprays which contact hot tubes transporting...
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5251575 |
Installation for cooling hot, dust-charged gas in a steam generator, and a process for operating said installation
The installation comprises a steam generator, which consists of a first heat exchanger (50) and two second heat generators (53, 54). The first heat exchanger (50) is a radiant heat exchanger, in...
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5199486 |
Coated heat exchanger for humidifier
A heat exchange humidifier for generation of steam-to-steam or fluid-to-steam humidity may include at least one steam tube in a heat exchanger array which may be coated with a non-stick surface...
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5110538 |
Preheating steam generator
In a preheating steam generator, the feed water is distributed in a feed space (34) by inverted J-shaped tubes (50), so as to mix with the recirculation water passing out of the water-steam...
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5094803 |
Steam generator
A steam generator utilized for a liquid-metal coolant reactor comprises an outer shell body in which an electromagnetic pump is arranged. The electromagnetic pump comprises a hollow cylindrical...
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5083529 |
Steam generator with ring header, particularly for a nuclear power station
A steam generator for a PWR comprise a pressure vessel having an upper portion forming a steam chamber and a bundle of U-shaped exchange tubes within the vessel. A feed-water ring header is located...
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5067446 |
Apparatus for degassing and heating water
An apparatus for degassing and heating water by means of steam comprises a column (1) with packing bodies (2) arranged therein, with a distributor (12) arranged at the column head for the water to...
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5046436 |
Apparatus and method for the preheating of liquid wastes in a waste disposal process
An apparatus for the preheating of liquid waste having a heated sealed container, a liquid waste tank, a jacket positioned around the sealed container so as to form a heat exchange region between...
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5042433 |
Device for stabilizing the tubes of the bundle of a steam generator having anti-vibration bars
Arranged on the hemispherical dome forming the upper part of the bundle of the steam generator is a structure consisting of bows (16) in the form of a portion of a ring and connecting hoops (18)....
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4983353 |
Novel passive approach to protecting the primary containment barrier formed by the intermediate heat exchanger from the effects of an uncontrolled sodium water reaction
In a steam generator utilized with a liquid sodium cooled nuclear reactor, provision is made to vent the violent sodium water reaction emanating from a tube rupture casualty. The steam generator...
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4967699 |
Steam generator
Steam generators are used in pressurized water-cooled nuclear reactors for generating steam which issues from the generator through a large bore steam outlet. Heat-exchange tubes through which feed...
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4905630 |
Method and apparatus for renewing a vertically disposed steam generator, in particular in nuclear power plants
A vertically disposed steam generator includes a pressure vessel containing: a tube plate, chambers, a bundle of U-shaped bent heating tubes with supporting anchors, a steam trap above the heating...
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4864970 |
Clean steam generator and method
A process and apparatus for producing clean steam by placing impure steam in heat exchange relationship with clean water but physically separated therefrom to produce superheated clean water and...
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4852524 |
Gas fired water heater
A novel semi-instantaneous, modulating and condensing gas fired water heating system having a very high dynamic response for supplying potable water on demand at a substantially constant,...
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