Boilerman 3 & 2 |
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Common terms and phrases
air ejector air pressure allow amount atomizer auxiliary steam auxiliary turbines blades blow boiler water Boilerman burette burner CALIFORNIA LIBRARY casualty centrifugal pumps chamber chapter check valve clean closed combustion condensate pump condenser connection cylinder deaerating diaphragm disk drains feed system feed tank firebrick fireroom fitted flange forced draft blowers fuel oil heaters fuel oil service fuel oil system furnace gaskets gear gear pump gland globe valves heat high-pressure inches of mercury indicator inlet installed INSULATING liquid lubricating oil M-type main feed pump naval needle valve nozzle oil service pump operating oxygen pipette piping piston pressure gage reciprocating pump refractory ring rotor safety valves sample shaft ship shown in figure side soot blowers speed sprayer plate steam drum steam flow steam line steam trap stop valve strainers suction superheater sure surface tachometer temperature thermometer vent viscosity water drums water gage glass water level
Popular passages
Page 394 - Specific gravity is the ratio of the weight of a given volume of material at 73.4°F (23°C) to that of an equal volume of water at the same temperature.
Page iv - ... overseas, capable of strong action to preserve the peace or of instant offensive action to win in war. It is upon the maintenance of this control that our country's glorious future depends; the United States Navy exists to make it so. WE SERVE WITH HONOR Tradition, valor, and victory are the Navy's heritage from the past. To these may be added dedication, discipline, and vigilance as the watchwords of the present and the future. At home or on distant stations we serve with pride, confident in...
Page 165 - Pumps having a suction lift, as bilge pumps, may require priming before they will take suction. Salt-water pumps can usually be primed from the sea by opening the sea suction valve for a short interval . 4. (a) If a pump races without appreciably increasing the discharge .Lo...
Page 392 - Flash point. The flash point of an oil is the temperature at which inflammable vapors are given off in sufficient quantity to flash when brought into contact with a flame.
Page 11 - ... of the surface of the heat-transfer apparatus in contact on one side with the water or wet steam being heated and on the other side with...
Page 187 - Volute turbine pump. almost complete conversion of kinetic energy to potential energy. Centrifugal pumps may be classified in several ways. For example, they may be either SINGLE-STAGE or MULTISTAGE. A single-stage pump has only one impeller. A multistage pump has two or more impellers housed together in one casing; as a rule, each impeller acts separately, discharging to the suction of the next stage impeller. Centrifugal pumps are also classified as HORIZONTAL or VERTICAL, depending upon the position...
Page 172 - Before opening a steam cylinder or a steam chest, be sure that all drains are open and that the steam and exhaust root valves are wired closed. 4. Before opening the water cylinder or the valve chest of a pump handling water at a temperature in excess of 120° F...
Page 157 - In a low-pressure pump, of course, the steam piston is smaller than the plunger in the liquid cylinder. The standard way of designating the size of a reciprocating pump is by giving three dimensions, in the following order: (1) the diameter of the steam piston; (2) the diameter of the pump plunger; and (3) the length of the stroke. For example, a 12...
Page iv - Our responsibilities sober us; our adversities strengthen us. Service to God and Country is our special privilege. We serve with honor. THE FUTURE OF THE NAVY The Navy will always employ new weapons, new techniques, and greater power to protect and defend the United States on the sea, under the sea, and in the air. Now and in the future, control of the sea gives the United States her greatest advantage for the maintenance of peace and for victory in war. Mobility, surprise, dispersal, and offensive...
Page 240 - ... SYSTEM. The necessity for feed water with less dissolved oxygen content was met by arranging the condensate pump to discharge to the feed pump suction line without causing the condensate to pass through the feed tank on its way to the feed pump. This system (Fig. 8-4} is named the semiclosed system because most of the condensate does not come in contact with the atmosphere. Because there are periods in the plant's operation when the condensate pump is pumping more water than the feed pump is...