Abstract: A liquid level control unit having a permanent magnet mechanism for translating displacements of a displaces element in the liquid of a container to an actuator device that actuates a control system for a regulated device such as a supply water control valve in a boiler system the control unit utilizing concentrically positioned annular magnet assemblies that are separated by a tube to shield the environment of one magnet assembly from the other.

Abstract: 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 the feedwater receiver, the deaerator unit including a makeup and return water spray nozzle and a pair of screen trays with steam circulated from the receiver through the screen trays and water spray for two stages of deaeration with spray water collected below the screens and delivered through a spray water return conduit to a water collection and mixing column in the receiver, wherein steam from a steam supply is delivered to the water collection column and mixed with collected spray water for a third stage deaeration before the deaerated water commingles with reservoir water contained in the receiver.

Abstract: A compact deaerator unit used in combination with a boiler feedwater receiver to eliminate corrosion in the feedwater receiver and in other components of a boiler system. The deaerator unit is mounted external to the feedwater receiver for receiving makeup water and return condensate through a spray nozzle, the deaerator unit in one embodiment having a water level overflow supplying the feedwater receiver with deaerated water and a submerged steam supply and temperature control for maintaining water in the deaerator unit at deaeration temperature, with the water level overflow being separated from the spray nozzle by a baffle, the steam supplied to the deaerator unit first passing through the feedwater receiver to continuously purge the receiver of any corrosive gases and maintain a positive steam pressure.

Abstract: A steam condensate recovery component particularly useful for pressurized deaerator units, the recovery component being a vertical extension pipe of thermally conductive material connected to a system air vent and extending into the atmosphere. The extension pipe includes a thermally controlled steam trap at the distal end of the extension pipe for blocking escape of steam and allowing return of recovered condensate to the deaerator unit.

Abstract: An economical deaerator unit for use in boiler feedwater systems for eliminating non-condensible gases, the unit having a containment vessel with a divided internal chamber with an upper scrubbing section and a lower heating and deaerating section with gases flowing from the lower section to the upper section for venting, and with water flowing from the upper section to the lower section for supply to a boiler system with water circulation in the deaerator unit being accomplished by gravity without a transfer pump.

Abstract: An atmospheric deaerator unit having a vessel divided into an atmospheric section and a low pressure section, the low pressure section containing steam supply line for deaerating a water spray circulated from the atmospheric section through a water circulating line using a series of spray heads for spraying water into the low pressure section, the circulating line communicating between the low pressure section and the atmospheric section, the atmospheric section having a vent open to atmosphere with a vent condenser to purge vented non-condensible gases from the atmospheric section, and, the low pressure section being pressure protected by a water column conduit communicating between the vessel sections to return overflow water and blow-through excess pressurized steam and vapor from the pressurized section to the atmospheric section, the unit being controlled by a steam control valve using pressure of the pressurized section or water temperature in the atmospheric section.

Abstract: A heat exchange system for steam returning from industrial processors to a pressurized receiver for return to a boiler with recovery of the thermal energy in the spent steam wherein the flow of water from a flash condenser connected to processor traps is regulated by the level of water in a water sink in the flash condenser for maximizing heat exchange and minimizing flash steam loss.

Abstract: A jet spray atmospheric deaerator unit having a vessel divided into an atmospheric section and a low pressure section, the low pressure section containing a jet spray deaerator valve connected to a steam supply line arranged with a water collection tray for deaerating water dispensed from the tray, the collection tray receiving water from the atmospheric section through a water circulating line which sprays water over the tray to purge steam from an open gas vent line communicating between the low pressure section and the atmospheric section, the atmospheric section having a vent open to atmosphere with a vent condenser to purge vented non-condensible gases from the atmospheric section, and, the low pressure section being pressure protected by a water column conduit communicating between the vessel sections to return overflow water and blow through excess pressurized gas.

Abstract: An atmospheric deaerator unit for use in combination with a deaerator receiver in a boiler feedwater system the deaerator unit being constructed with a container having a steam inlet, a makeup and circulating water inlet and a vapor passage interconnection to the deaerator receiver which stores deaerated water for cycling to a boiler, the container having an open atmospheric vent and enclosing a shrouded water spray valve at the end of the water inlet, a water collection tray under the spray valve, and a steam dispersion valve, the tray having an overflow around the end of the steam inlet within the container, wherein water cascades to the steam dispersion valve and is atomized and fully deaerated, the deaerated water falling through the vapor passage interconnection for collection in the deaerator receiver, wherein the steam dispersion valve is regulated by a thermostatic control having a temperature sensor submersed in the water of the collection tray.

Abstract: A heat exchanger with straight tubes for convenient cleaning and repair is constructed with superior heat exchange capabilities. The heat exchanger has an outer shell with a fluid entry and exit and end plates which support one or more tubes with a fluid entry and fluid exit for each tube, the tubes having both an internal turbulence inducing structure and an external fin structure with periodic baffles for maximizing the heat exchange surface area and the contact of the exchange fluids with the exchange area.

Abstract: 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 that a steam trap in the closed system will operate and permit the hot condensate to be returned to the boiler. Also, new make up water may be added to the system to compensate for any steam loss. In the high pressure closed system about 96.68% of the condensate is returned to the boiler and only about 3.32% is needed for new make up water.