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US1971068A US647441A US64744132A US1971068A US 1971068 A US1971068 A US 1971068A US 647441 A US647441 A US 647441A US 64744132 A US64744132 A US 64744132A US 1971068 A US1971068 A US 1971068A Authority US United States Prior art keywords boiler chamber gases heating chambers Prior art date Kefid Legal status (The legal status is an assumption and is not a legal …
Another had a cylindrical fire box surrounded by an annular water space and a coiled tube was placed within the box connecting at its two ends with the water space. This was the first of the "coil boilers". Another form in the same patent was the vertical tubular boiler, practically as …
Nov 01, 2017 · Researchers have shown that 0.04 in. (1 mm) of buildup can increase fuel consumption by 2% for water-tube boilers and 5% for fire-tube boilers . Moreover, scaling may result in tube failures. Tests showed that for water-tube boilers 0.04 in. (1 mm) of buildup can increase fuel consumption by 2% (CIPEC, 2001), . When this occurs, the boiler
A flue gas recirculation system for fire tube boilers includes a duct connected to the boiler gas discharge stack and to a fan. Another duct couples the fan to a specially designed burner in the boiler. Recirculated flue gas is injected downstream of the fuel/air mixture in the burner and cools the flame leading to substantially reduce the NO x content in the boiler stack emissions.
The carbon-free fire tube boiler is a boiler for heating water by combustion of hydrocarbon fuels with oxygen. The boiler includes a housing defining first and second heat transfer stages. At least one oxygen transport reactor is received within the first heat transfer stage. The oxygen transport reactor includes an outer wall and an inner cylindrical ion transport membrane.
US3392711A US60061366A US3392711A US 3392711 A US3392711 A US 3392711A US 60061366 A US60061366 A US 60061366A US 3392711 A US3392711 A US 3392711A Authority US United States Prior art keywords boiler tube tubing tubes rating Prior art date Kefid Legal status (The legal status is an assumption and is not a legal conclusion.
Liming · The vertical water tube steam boiler is once-through three-pass structure boiler,temperature rises up quickly, and thermal efficiency is high. The flame has two stage, convenient for adjustment. It is the patent product of Taiguo Boiler, the patent number is ZL 2018 2 1708984.9. Get Price
15,352. Pielock, E. July 1. Smoke, consuming; air supply, heating. - In boilers comprising a firebox a and a tubular boiler b separated by a combustion chamber c, air is admitted at k, and is heated in the coiled pipe i before issuing through slots l to complete the combustion of the gases which pass from the fire - box by the pipe g. Air to be supplied under the grate h enters above the
US3231014A - Fire tube boiler - Google Patents Fire tube boiler Download PDF Info Publication number fire tube fire rolled Prior art date Kefid Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
US2013828A - Vertical flue boiler - Google Patents. F22B13/023 — Steam boilers of fire-box type, i.e. the combustion of fuel being performed in a chamber or fire-box with subsequent flue(s) or fire tube(s), both chamber or fire-box and flues or fire tubes being built-in in the boiler body mounted in fixed position with the boiler body disposed upright with auxiliary water tubes inside the fire
boiler tube boiler pilot tube Prior art date Kefid Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US11/085,374 Inventor Merrill C. Craig Original Assignee
Nov 30, 2016 · Function: to shut off or regulate the flow of steam from the boiler to the steam pipe or steam from the steam Patent US1799025 – Blow-off cock valve – Google Patents My present invention has reference to a blow-off cock valve for boilers, and my object is the provision of a device for this purpose that is constructed of parts or …