Standard American Cyclopedia of Steam Engineering: A Treatise on the Care and Management of Steam Engines, Boilers and Dynamos ...F.J. Drake epxressly, 1913 - 1249 sider |
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Side 37
... , and when there is no perceptible movement it is time to look for the cause at once . Many instances of burned tubes have occurred , and 1 even explosions caused by low water in boilers while. BOILER SETTINGS AND APPURTENANCES 37.
... , and when there is no perceptible movement it is time to look for the cause at once . Many instances of burned tubes have occurred , and 1 even explosions caused by low water in boilers while. BOILER SETTINGS AND APPURTENANCES 37.
Side 39
... cause the valve to open at the point for which it is set to blow . Safety Valves . The modern pop valve is generally reliable , but , like everything else , if it is allowed to stand idle too long it is likely to become rusty and stick ...
... cause the valve to open at the point for which it is set to blow . Safety Valves . The modern pop valve is generally reliable , but , like everything else , if it is allowed to stand idle too long it is likely to become rusty and stick ...
Side 44
... cause considerable loss of heat . For batteries of two or more boilers it is necessary to run a main feed header , with branch pipes leading to each boiler . The header should be large enough to supply all the boilers at the same time ...
... cause considerable loss of heat . For batteries of two or more boilers it is necessary to run a main feed header , with branch pipes leading to each boiler . The header should be large enough to supply all the boilers at the same time ...
Side 46
... cause a circulation of water in the pipe and prevent the formation of scale . A surface blow off is a great advantage , especially if the water is muddy or liable to foam . By having the surface blow off connected on a level with the ...
... cause a circulation of water in the pipe and prevent the formation of scale . A surface blow off is a great advantage , especially if the water is muddy or liable to foam . By having the surface blow off connected on a level with the ...
Side 79
... cause it to work all right again ; but if this treatment has to be resorted to very often the valve should be taken down and over- hauled . In too many steam plants not enough import- ance is attached to the safety valve . The fact is ...
... cause it to work all right again ; but if this treatment has to be resorted to very often the valve should be taken down and over- hauled . In too many steam plants not enough import- ance is attached to the safety valve . The fact is ...
Vanlige uttrykk og setninger
adjusted alternating current ammonia amperes Ans.-The arc lamp armature atmospheric bars blades boiler braces brushes carbon cause cent circuit clearance coal coil combustion commutator compression compressor condenser connected crank cubic cubic foot curve cylinder diagram diameter direct current distance dynamo eccentric efficiency electricity electromotive force engine evaporation exhaust expansion feed water feet FIGURE fire flow flue friction furnace fusible plug gauge governor grate heat units heater heating surface horizontal horse power injector inside iron lamp length live steam lubrication machine magnet mechanical stokers motion motor multiplied nozzles operation passes pipe piston plate position pounds Ques reciprocating engine resistance rheostat rivets screwed shaft shown side speed square inch steam turbine steam valve stoker stroke surface condenser tank temperature tion tubes vacuum velocity vertical voltage volts water-tube boilers weight wire
Populære avsnitt
Side 107 - It has been seen that a heat unit is the quantity of heat required to raise one pound of water one degree in temperature...
Side 32 - A segment of a circle, is the figure contained by a straight line and the circumference which it cuts off.
Side 29 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Side 295 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Side 127 - The water level should be as nearly as possible the same as at the beginning of the test. If it is not the same, a correction should be made by computation, and not by operating the pump after the test is completed.
Side 43 - The lower limit is specified for rubber-covered wires to prevent gradual deterioration of the high insulations by the heat of the wires, but not from fear of igniting the insulation. The question of drop is not taken into consideration in the above tables.
Side 32 - A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another : 16. And this point is called the centre of the circle.
Side 549 - One piston acts to give steam to the other, after which it finishes its own stroke and waits for its valve to be acted upon before it can renew its motion. This pause allows all the water valves to seat quietly, and removes everything like harshness of motion.
Side 136 - BTU per hour. It is also practically equivalent to an evaporation of 30 Ibs. of water from a feed water temperature of 100° F. into steam of 70 Ibs. gauge pressure.
Side 38 - A cone is a solid figure described by the revolution of a right-angled triangle about one of the sides containing the right angle, which side remains fixed.