重型工业燃气轮机的大检和大修周期长，综合维护费用低于航空改型燃气轮机。The large inspection and overhaul period of heavy industrial gas turbine are long, and the comprehensive maintenance fee is lower than the air engine gas turbine.
重型工业燃气轮机的大检和大修周期长，综合维护费用低于航空改型燃气轮机。The large inspection and overhaul period of heavy industrial gas turbine are long, and the comprehensive maintenance fee is lower than the air engine gas turbine.
参考答案和解析
燃气轮机本体检修分为三个等级，分别是：
（1）燃烧系统检查，也称为小修；
（2）热通道检查，也称为中修；
（3）整机检查，也称为大修。
相关考题：
One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space isA.the 'snow' which is sometimes discharged along with the gas is toxicB.prolonged exposure to high concentrations of CO2 gas causes suffocationC.rapid dissipation of the CO2 vaporD.the CO2 gas is lighter than air and a large amount is required to extinguish a fire near the deck
The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by_______.A.large conical springsB.compressed air pressureC.hydraulic pressureD.exhaust gas pressure
The high air velocity leaving the compressor of an exhaust gas turbocharger is converted to pressure in the_______.A.inlet nozzle ringB.turbine wheel bladeC.diffuser passagesD.inlet volute
The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually______.A.greater than the average exhaust manifold pressureB.less than the average exhaust manifold pressureC.greater at the turbine wheel than at the impellerD.greater at reduced engine speed
How does an inert gas system on a tanker function to prevent explosions in cargo tanks?A.De-energizes the "charged mist" effectB.Maintains a positive pressure on the vent header to cool the flammable vaporsC.Inert gas filters out the flammable vapors from the cargo tank spacesD.Inert gas dilutes the flammable vapor and air concentrations to keep them below the lower explosive limit
Air Bus’ world-renowned hot-section engineering______the needs of industrial gas turbine customers.A.repliesB.answersC.freesD.addresses
单选题How does an inert gas system on a tanker function to prevent explosions in cargo tanks? （）ADe-energizes the charged mist effectBMaintains a positive pressure on the vent header to cool the flammable vaporsCInert gas filters out the flammable vapors from the cargo tank spacesDInert gas dilutes the flammable vapor and air concentrations to keep them below the lower explosive limit
单选题Intake air flow from a diesel engine turbocharger is directly proportional to engine（）Aexhaust gas pressureBexhaust gas temperatureCspeedDload
单选题The fresh air intake of the inert gas system（）.Aprevents the flue gas from falling below 3% content of oxygenBallows the inert gas piping to be used for gas freeing the tanksCopens when there is excessive vacuum on the deck water sealDenables outside air to mix with and cool hot flue gasses
单选题The hot expanding gas rotates the blades of the exhaust turbine, thus giving out large part of its power, which drives （）.Athe oil separatorBthe fresh water generatorCthe compressorDfire pump
单选题The diesel engine exhaust gas bypass, as fitted with some waste heat boilers, is installed to （）Aprevent engine back pressure at heavy loadsBincrease total engine efficiency at low loadsCprevent boiler corrosion at low engine loadsDimprove engine fuel consumption at any load
单选题Diesel engine mufflers or silencers reduce the engine exhaust noise by （）Apassing the exhaust through long head pipesBdiffusing exhaust vibrations through activated carbon bafflesCincreasing the exhaust gas velocityDreducing the exhaust gas velocity
单选题One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space is （）.Athe snow which is sometimes discharged along with the gas is toxicBprolonged exposure to high concentrations of C02 gas causes suffocationCrapid dissipation of theC02 vaporDthe C02 gas is lighter than air and a large amount is required to extinguisha fire near the deck
单选题Diesel engine mufflers accomplish noise reduction by （）Areducing exhaust gas velocityBincreasing the frequency of gas vibrationCthe use of long head pipesDthe use of zinc electrodes
单选题After passing through the turbine the exhaust gas is conducted out into the（）.AintercoolerBcompressorCcylinderDopen air
单选题The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually（）Agreater than the average exhaust manifold pressureBless than the average exhaust manifold pressureCgreater at the turbine wheel than at the impellerDgreater at reduced engine speed
单选题The term diesel engine scavenging means（）Adelivering more air into the cylinder than it would normally receive during an ordinary charging processBforcing the products of combustion out of the cylinder with the fresh air chargeCcollecting the air charge at the cleanerDcombustion and expansion of hot gas
单选题For a generator engine, after passing through the turbine the exhaust gas may be conducted out into the （）.AintercoolerBopen airCoil fired boilerDB and C
单选题Why will a turbocharger diesel engine produce black smoke if excessive additional load is applied too quickly?（）AExhaust energy would draw excess airBThe inertia of the turbocharger rotor causes a time lag which delays the turbocharger speed increaseCExhaust gas pumping losses are increased due to turbine windageDExhaust gas back pressure falls slightly due to increased nozzle action
单选题When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the conditions listed will indicated?（）AAdvanced ignitionBClogged air intakeCLeaky exhaust valveDHigh exhaust pressure
单选题When restarting a heavy fuel diesel engine that has been stopped for some time, the engine should（）Aincrease the starting air pressureBuse a higher than normal cranking speedCincrease the fuel injection pressureDuse a fuel having a lower ignition temperature
单选题The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by （）.Alarge conical springsBcompressed air pressureChydraulic pressureDexhaust gas pressure
单选题“This increase in charge air density is accomplished on most modern diesel engine types by use of exhaust gas turbo-charging, in which a turbine wheel driven by exhaust from the engine is rigidly coupled to a centrifugal type air compressor” According to this sentence, we can know that increases density（）, drives the compressor directly（）Aa modern diesel engine；a turbine wheelBa modem diesel engine；exhaust gasesCa compressor；an exhaust gas turbochargerDa compressor；a turbine wheel
单选题Gas turbines differ from steam turbines in that （）.Asteam rather than gas is used to turn a shaftBvapor rather than gas is used to turn a shaftCthe former uses gas to turn a shaftDthe latter uses gas to turn a shaft