5437248 Fire tube boiler

5437248 Fire tube boiler

Applied ThermalEngineering Vol. 16, No. 3, pp. Ill-VIII, 1996 Elsevier Science Ltd Printed in Great Britain 1359-4311/96 $15.00+ .00 Pergamon This s...

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Applied ThermalEngineering Vol. 16, No. 3, pp. Ill-VIII, 1996 Elsevier Science Ltd Printed in Great Britain 1359-4311/96 $15.00+ .00

Pergamon

This section contains abstracts of recently issued United States patents and published patent applications filed from over 30 countries under the Patent Cooperation Treaty and compiled in accordance with interest profiles developed by the Editors.

5437248

collector is mounted on the exterior of the closed tank and has an annular chamber surrounding a flue opening for receiving the products of combustion for exhaustion to the atmosphere. An outer wall portion closes one end of the flue opening to provide a closed compartment within the collector which can be pressurized by an external blower. An inner wall portion of the collector has an opening which communicates with the combustion chamber. A fuel supply conduit carries a pressure plate and electrodes which provide controlled ignition of the fuel and air mixture within the opening in the inner wall portion to provide heat to the combustion chamber of the closed tank.

FIRE TUBE BOILER Miura Tamotsu; Miura Masatoshi; Higuchi Osamu Matsuyama, JAPAN Assigned to Miura Co Ltd A fire tube boiler having a combustion chamber equipped with a burner, and a group of fire tubes provided adjacent to the combustion chamber. The fire tube boiler further includes a heat exchanger disposed in the combustion chamber and serving for heat exchange with combustion flame from the burner. The combustion chamber is divided into a first combustion chamber and a second combustion chamber by the disposition of the heat exchanger. Furthermore, the heat exchanger is disposed in proximity to the burner so that the combustion flame in the first chamber is less than 1500 degrees C. and the combustion flame in the second chamber is between 1100 degrees and 1400 degrees C. Thus, the fire tube boiler allows further reduction in harmful exhausts such as NOx and CO.

5437714 SEMI-CONTINUOUS DEODORISER Cook Raymond; Sewell Donald, York UNITED KINGDOM Assigned to Ebortec Limited

5437249

A combined vertical column and shallow tray semicontinuous deodoriser for edible oils and fats and comprising a column of discrete vessels and deodorising vessel disposed within or valveconnective thereto. In the operation of the device, heated oil from a vessel is supplied to deodorising vessel wherein it is circulated by steam injection at through a lift tube, between a plurality of vertically separated self draining shallow trays. The entire oil content of deodorising vessel is circulated therethrough approximately once a minute for a period in the region of eighteen minutes to strip free fatty acids and other volatile components from the oil by falling curtain and steam sparge techniques, and then the oil batch is discharged to a heat recovery vessel and a cooling vessel before product discharge.

COMBINATION BURNER AND FLUE GAS COLLECTOR FOR WATER HEATERS AND BOILERS Adams Charles L; Adams Richard C Fort Worth, TX, UNITED STATES Assigned to PVI Industries Inc A water heater is shown having a closed tank with an opening for receiving a combustion chamber, the interior of the tank normally containing water under pressure. A combustion chamber is located within the tank interior and includes a body portion having an open end adjacent the tank opening into which combustible fuel is introduced and ignited in the presence of air to create products of combustion. A flue III