WORDS AND EXPRESSIONS. BOILER MOUNTINGS. BOILER MOUNTINGS

application	применение
e. g. (exempli gratia- лат)	например
upper header	верхний коллектор
screen tubes	экранные трубы
lower header	нижний коллектор
packaged unit	агрегат
package boiler	котлоагрегат
access ladder	трап для доступа
gas exit flange	фланец выпускных газов
blow - down valve	продувочный клапан
water inlet strainer	входной водяной фильтр
main stop valve	главный стопорный клапан
lifting lug	подъемный обух
double spring safety valve	сдвоенный предохранительный клапан
forced draught fan compartment	кожух котельного вентилятора
pressure gauge	манометр
hinged door	навесная дверь
pressurised plenum chamber	камера повышенного давления
combustion appliance	топочное устройство

 

TEXT

WATER - TUBE BOILER

In the water tube boiler feedwater passes through the tubes surrounded by hot gases. It is used for high pressure, high temperature, high capacity steam applications. e._g._ providing steam for the main propulsion turbine or cargo pump turbines.

FIRE - TUBE BOILER

In the fire - tube boiler the hot gases pass through the tubes surrounded by water. most fire - tube boilers are now supplied as a completely packaged unit. This will include the oil burner, fuel pump, forced draught fan, feed pumps and automatic controls for the system.

TEXT 3

BOILER MOUNTINGS

WORDS AND EXPRESSIONS

certain	определенный
to refer to	относиться, ссылаться, зд. называться
mountings	гарнитура (котла)
to mount	устанавливать
to protect	защищать
to fit	устанавливать
main steam supply line	главный паропровод
поп - return valve	невозвратный клапан
auxiliary steam supply line	вспомогательный паропровод
feed check or control valve	регулировочный клапан
water - level gauge	водомерное стекло
air release cock	воздуховыпускной кран
to raise	поднимать
initially	в начальной стадии
sample	проба, образец
outlet cock	выпускной кран
to enable	давать возможность
scum valve	клапан верхнего продувания
shallow dish	тарельчатая сетка
spring loaded safety valve	пружинный предохранительный клапан
cap	колпак
compression nut	регулировочная гайка
split ring	разрезное кольцо
helical spring	спиральная пружина
valve spindle	шток клапана
bush	втулка
valve lid	тарелка клапана
valve seat	седло клапана
cotter	шплинт
steam inlet	паровпускной канал
padlock	висячий замок
easing gear	разгружающее подрывное устройство
steam outlet	паровыпускной канал

 

TEXT

Certain fittings are necessary on a boiler to ensure its safe operation They are usually referred to as boiler mountings.

They are:

Safety valves which are mounted in pairs to protect the boiler against overpressure.

Main steam stop valve which is fitted in the main steam supply line and is usually of the non - return type. Auxiliary steam stop valve which is fitted in the auxiliary steam supply line and is usually of the non - return type.

Feed check or control valve. A pair of non - return valves are fitted: one is the main valve, the other - the auxiliary or stand by.

Water level gauges which are fitted in pairs at opposite ends of the boiler.

Pressure gauges which are fitted to provide pressure readings.

Air release cocks which are fitted to release air when filling the boiler or initially raising

steam.

Sampling connection. A water outlet cock and cooling arrangement is provided for the sampling and analysis of the feed water

Blow down valve which enables water to be blown down or emptied from the boiler Scum valve to which a shallow dish positioned at the normal water level is connected. (1100)

TEXT 4

OPERATION AND MAINTENANCE