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7992527 |
Water feed controller for a boiler
A water feed controller which can provide for the addition of a preset fixed amount of water to be added after a low water condition is removed. This system provides for a preset fixed amount of...
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7931041 |
System and method for controlling liquid level in a vessel
A system includes sensors configured to measure vessel parameters. A signal processing unit receives sensor output signals and generates a first, second, third, fourth, and fifth filtered output...
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7093611 |
Water feeder controller for boiler
A water feeder controller for a boiler monitors a low water cutoff sensor in a boiler and uses a feed timer to feed water to the boiler for a predetermined feed period of time. The feed timer...
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6938584 |
Feedwater control system considering pressure drop of feedwater control valve in nuclear power plant and control method therefor
A feedwater control system considering a pressure drop of feedwater control valve in a nuclear power plant and a control method therefor are provided. In the feedwater control system, a first...
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6886502 |
Method for controlling steam generators
A method of controlling the feedwater flow to the secondary side of a steam generator in a pressurized water nuclear reactor monitors various process variables such as the feedwater and the steam...
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6464492 |
Methods of utilizing boiler blowdown for reducing NOx
The present invention provides improved methods of reducing NOx emissions in the flue gases produced by a steam boiler fired by a fluid fuel and combustion air burner and including a steam drum...
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6105538 |
Waste heat boiler with variable output
A self-regulating exhaust gas boiler intended for the recovery of thermal energy from the exhaust gases of diesel engines or the like, has a steam/water cylinder acting as the water and steam...
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6079372 |
Triple effect, pressurized deaeration system for boilers
A triple effect, pressurized deaeration system for boiler feedwater the system including a component deaerator unit and a feedwater receiver, the deaerator unit being mounted external to and above...
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6055945 |
Full range feedwater control system for pressurized water reactor steam generators
A feedwater control system for a pressurized water steam generating system, and a method for using such, includes a steam generator, at least one feedwater pump which receives an output signal from...
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6041742 |
Fluid heating and pumping apparatus
A fluid heating and pumping apparatus for use with hot fluid space heating systems includes a fluid tank containing heated fluid and a collapsible bladder contained within the fluid tank for...
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5918570 |
Deaerated feedwater supply system for a boiler system and a method for deaerating boiler feedwater
A deaerated feedwater supply system for a boiler system includes a water supply conduit configured to provide a supply of water to a deaerator tank and a deaerated makeup water conduit configured...
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5771846 |
Method for feed water control in waste heat steam generators
In a method for feed water control in waste heat steam generators, in particular drum boilers with a circulating pump (9) and drum boilers with natural circulation employed in combination power...
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5588400 |
Method of generating steam in a forced-through-flow boiler
A method and apparatus for generating steam in a forced-through-flow boiler. During operation, water is conveyed through a preheater, an evaporator and, if needed, a superheater. For such a boiler...
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5519998 |
Apparatus for introducing feed water into a combined-cycle power station
An apparatus for introducing feed water into a steam generator, preferably into a waste-heat boiler of a combined-cycle power station having at least one waste-heat boiler, includes at least one...
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5392739 |
Steam-raising system
A steam-raising system comprising a boiler, a pump connected by a flow passageway to the boiler to pump water thereto, and flow-control means connected to the flow passageway between the pump and...
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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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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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5152252 |
Water treatment control system for a boiler
An apparatus controls treatment of water flowing through a boiler and includes a device that monitors the conductivity of the water. A controller opens a drain valve at periodic intervals, and...
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5148775 |
Feedwater control for drum type steam generators
An improved feedwater control for drum type steam generators is provided in order to gain improved drum level control for drum type steam generators which are subjected to great load changes at...
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5129366 |
Deaeration system for a boiler
A boiler system having a condensate line and a deaeration or and a condensate tank characterized by the fact that the deaerator is placed between the condensation tank and the boiler.
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4953508 |
Boiler for steam flatirons, incorporating an improved replenishment manifold
The boiler includes a tight receptacle having a replenishment manifold which opens into the receptacle at an intermediate level thereof so as to define a first replenishment level. The boiler also...
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4944251 |
Condensate return tanks
A condensate return tank for storing and condensing water in a closed loop steam system is provided having a generally cylindrical body closed at each end and a float valve comprising a ball...
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4895136 |
High-temperature heaters, methods and apparatus
An improved gas-jet hot water heater system for the generation of high-temperature water at atmospheric pressure simultaneously with superheated water and/or steam. The heater system comprises a...
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4619224 |
Apparatus for controlling drum water level of drum type boiler
An apparatus for controlling the drum water level of a drum boiler prevents the boiler system from being tripped off which would otherwise be caused by an excessive fall in the drum water level...
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4593653 |
Distributor for two-phase mixtures, especially water-steam mixtures in forced-circulation boilers
Distributor for two-phase mixtures, including a distributor drum, a feed tube leading into the distributor drum in a given direction, a plurality of outlet tubes leading from the distributor drum...
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4594160 |
Magnetizable separator for the purification of liquids
Magnetic separator for the purification of liquids with a tube which conducts the latter, contains balls or wire screens as magnetizable bodies and is surrounded by a coil for magnetizing the...
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4572112 |
Apparatus for feeding steam/liquid into a steam generator
A fluid feeding apparatus can gradually elevate the head of a fluid of steam/liquid mixture by recirculating the fluid through a centrifugal pump of moderate output and an injector. The fluid...
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4555310 |
Method of utilizing energy of high pressure condensate
A method of utilizing the energy of a high pressure condensate stream including passing steam at an elevated pressure in indirect heat exchange with a material to be heated, collecting a condensate...
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4552099 |
Anticipatory boiler feedpump suction head controller system
Boiler feedpump net positive suction head (NPSH) control is performed in a heat recovery steam generator including a deaerator inserted between steam turbine condensate and steam boiler. To this...
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4541365 |
Method and apparatus for supplying feedwater to a forced flow boiler
An apparatus and method of supplying feedwater to a forced flow boiler or the like as described. A positive displacement pump having a plurality of discrete pumping elements is arranged to pump...
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4512387 |
Power transformer waste heat recovery system
Large power transformers such as used at electrical generating plants utilize oil for cooling with the heat removed by air cooled radiators. Several air cooled radiators are removed from the...
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4465027 |
Exhaust gas vapor generator
The exhaust gas vapor generator has a main working medium flow which passes via a feed pump and economizer into an evaporator. Working medium is bled off as a component flow between the economizer...
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4465026 |
Automatic boiler blowdown system including blowdown sequence control
A blowdown system for controlling blowdown of a boiler such that the level of dissolved solids in the boiler is carefully controlled. The system includes a blowdown tank connected to the bottom of...
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4404930 |
Methods and apparatus for transferring liquid against high pressure resistance
Mechanical methods for reducing drastically the energy consumption of high pressure liquid pumping.The basic method is to utilize high pressure vapor at the suction side of the pump to reduce the...
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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...
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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...
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4249486 |
Steam condensate and waste water recycling process
Condensate released from traps on a chemical distillation reboiler is piped to a flash tank where steam is flashed off as condensate pressure is reduced. The steam is recondensed by contact with...
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4242989 |
Boiler level control system
This disclosure relates to apparatus for steam generation or boilers and more specifically, discloses a system for controlling the fluid level in a boiler drum. Drum level control requires an...
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4227489 |
Method and device for feeding a system for generating and distributing vapor condensable into make-up liquid
In a system of production, distribution and utilization of condensable vapor with recovery of the condensates in a closed container, a method for forced delivery of condensates consisting in...
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4211188 |
Methods and apparatus for feeding liquid into apparatus having high pressure resistance
Mechanical methods for reducing drastically the energy consumption of high pressure liquid pumping and for eliminating the use of expensive multi-tube heat exchangers.The basic method is to utilize...
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4207842 |
Mixed-flow feedwater heater having a regulating device
A mixed-flow feedwater heater having a regulating device is disclosed including a feedwater tank having a deaerating dome. Steam is conveyed from a low pressure steam drum to a feedwater tank to...
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4194468 |
Forced-flow boiler installation and method of operating the same
A forced-flow boiler installation and method of operating the same comprising a series circuit of a feed pump, an economizer, an evaporator and a water separator as well as a recirculation line or...
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4173124 |
Boiler feed water pump control systems
The boiler feed water system is provided with a motor driven feed water pump and a steam turbine driven feed water pump. The control system comprises a digital computer including a flow quantity...
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4165718 |
Method and apparatus for feeding condensate to a high pressure vapor generator
A mechanical arrangement to reduce drastically the energy consumption for pumping condensate to feed high pressure vapor generators for power generation, industrial processing, and heating systems....
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4131084 |
Upright direct fired water bath propane vaporizer
A water bath vaporizer for converting liquid propane into gaseous propane includes a propane-carrying heat transfer pipe in the form of a helix immersed in a water bath in an insulated upright...
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4060057 |
Water supply pipe for a steam generator
The present invention relates to a water supply pipe for a steam generator.The supply pipe comprises the following elements in a substantially horizontal portion (3) thereof:A lower baffle plate...
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4051814 |
High pressure washer
A pressurized hot fluid washer includes a combination pumping unit driven by a closed hydraulic system which applies driving impulse forces to an interlocked liquid pump member and a fuel pump...
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4050418 |
Control system for steam generator
Heat produced in a fast breeder reactor is introduced out of the reactor by liquid sodium into an intermediate heat-exchanger where the heat is transferred to the secondary coolant sodium. In an...
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4037569 |
Flow distribution arrangement for a steam generator
Blocks are disposed in notches in a wrapper encircling a tube bundle of a steam generator, covers are disposed over a plurality of holes in blowdown pipes; the ports in the feedwater header are...
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3972654 |
Diaphragm pump boiler feed water system
A hydraulic fluid control system regulates the delivery rate of feed water to a boiler. A hydraulic actuated diaphragm pump having a plurality of diaphragm working chambers which are interconnected...
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