教师工作总结幼儿园小班教师工作总结.docx

1、教师工作总结幼儿园小班教师工作总结教师工作总结幼儿园小班教师工作总结 幼儿园小班教师 there? After ignition, combustion should focus its attention on what? Reducing boiler hot loss measures? DC-what are the main characteristics of the boiler? Boiler steam after Bao Biwen how? when shutdown to control steam drum wall temperature difference? F

2、rom a run standpoint, what are the main measures to reduce coal consumption for power supply? Talk about how to control the water level? Generator after splitting, 6KV why to promptly exit the standby power switch? Why the current transformer secondary side in the operation are not allowed to open?

3、Why synchronous generator excitation circuit of the degaussing switch can be changed into a lively breaker? Generator step-up process, why the rotor and stator currents to monitor? Why are rotor one point ground prone to 2nd after ground? Try 380V discussed following the grounding of auxiliary power

4、 system, wiring for three-phase five-limb terminal of PT secondary voltage change? Generator incomplete phase operation principle is what? Yn,d11 (Y0/-11) connection of generator-transformer systems, generator open-phase running any help? Why to install 100% stator grounding protection for large gen

5、erator? Why does not allow running secondary short circuit? Generator excitation, excited, what is the of the overexcitation limit? Generator loss of excitation in the running, what is the impact on the system and the generator itself? Anti-cuozhong on the prevention of excitation system of generato

6、r caused by fault what damage? try discussing what are the measures of improving power system dynamic stability? What is a switching operation of the electrical equipment? main content switching operation of power plants and power systems are there? Try discussing malignant electric misoperation, wh

7、ich misuse personal, most of the equipment? Switch service power fast cutting device in several ways? in the alternate to the State, the standby power switch refused to deal with? Try discussing switching operations should focus on preventing misoperation accident? New operation or after majorrepair

8、 of transformers why test? Try discussing steps measured with a Megger insulationresistance of electrical equipment? Lu method is used to find DC grounding considerationarewhat? when there are two point grounding with the polarity should be . 1.600MW supercritical supplementary questions, blank mini

9、 disk can be divided into manual and two oil turbine; oil turbine disc wheel car, the turning speed of the rotor can be controlled at around 80120 RPM (high speed), and it is fulfilled by controlling access to the oil-pressure turbine oil turning on/off and speed level. Medium-speed Coal mill explos

10、ion-proof steam from a wind room, _, _ separator casing into the ground to prevent the mill explosion in the process of starting and stopping. Mill load is to accept current signal to the coal control proportional pressure relief valve size, change of hydraulic accumulators and hydraulic cylinders,

11、to achieve load changes. Sealed Air for coal pulverizer drive, Rod bearings, roller. Cold wind of a user with a sealed air blower air, sealed air, ground coal to a cold wind. Turbine sealing oil primary oil source is air-side seal oil pump, the first alternate oil sources (mainly alternative oil sou

12、rce) is the main oil pump of turbine. When the primary oil source failure, the first spare source automatic put into operation. Second alternate oil sources primary alternate supply AC electric sealing oil pump on the fuel tank, when the turbine speed is less than 2/3 rated speed or first alternate

13、source failure occurs, the second spare source automatic switch. Third alternative oil source is provided by DC sealing oil pump. Main fuel tank exhaust throttle should be located 2 steel closing door operation handwheel locking is not allowed and obvious warning signs should be hung. Steam engine r

14、oom caught fire, when it threatened to tank or fuel system, shall immediately destroy the vacuum emergency stop, and turn on the tank accident put the throttle, speed and control on oil should be appropriate, to ensure that the rotors lubricants are not interrupted before static. Shaft seal overflow

15、 overflow to #8 the low pressure under normal conditions, when #8 the low pressure overflow when the outage to the condenser. Sliding pressure operation of deaerator may avoid deaerator steam source for throttling losses. Normal operation of steam turbine steam distribution mode for steam distributi

16、on nozzle. After the turbines stopped, if the rotor cannot rotate for a short time, rotor _ _ under bending, highest in _ _ highs at this point rotor should be reset, close the hydrophobic _ _ cylinder, keeping _ up and down temperature difference between cylinder _ monitor rotor _ _ deflection, whe

17、n after you verify that the rotor is, and then manually turning 180 o. When turning the motor over current or rotor disc doesnt move, do not forcibly barring _ _, but can not turn _ forced _ or turning the crane broke. Stop turning _8_ hours later, to stop the lube oil system. Condensate pumps due t

18、o transportation of saturated water, the pump is most prone to cavitation _ _, therefore is composed of _ inducer _, and at the time of installation ensure the pump inlet has some highly _ _ intrusion, and design _ export recycled _ tubes, also in order to solve this problem. When the condenser when

19、 the water level is too low _ setting up _ pumps are turned on, into the air to prevent the pump design _ _ seal water, prevent the pump output is not normal. . Threaded tube within a water wall, deterioration of heat transfer does not occur. X turbine cold starts, heat transfer of steam to the cyli

20、nder wall is based on condensation heat transfer and convective heat transfer in two ways at the same time. (X) the furnace higher excess air coefficient, smaller chemical heat loss due to incomplete combustion. () Boiler of soda expansion is inevitable. Start-up incorporations, boiler-DC operation,

21、 adjustment of main steam temperature control in a coal-water ratio between points. A single swirl burner burning adjacent burners are not required to support. Swirl burners with different rotation direction will affect the boiler steam temperature and load parameters. X boiler steam flow is divided

22、 with double built-in startup separator designed for community process. During combustion of pulverized coal in boiler, oxygen content, the lower the NOx is produced more. When the gas-water ratio imbalances, once-through boiler steam temperature at each point in the trip will change, and closer to

23、the pop tour entrance, inertia and hysteresis temperature change is smaller. In disguise near the heat transfer coefficient of steam increases to a maximum at first and then quickly lower. Control of start-up separator outlet steam temperature, that controls the boiler heating and evaporation, therm

24、al heat distribution. (X) as the direct current requirements for operation of the boiler feedwater quality was much higher than that of drum boiler, in once-through boiler start-up process, therefore there is no need for furnace washing of Silicon. () UP the boiler is subcritical and supercritical p

25、arameters can be used in the furnace, working one or two times, connecting multiple hybrid, has a higher mass flow, suitable for large supercritical pressure once-through boiler. (X) this-is the biggest characteristic of evaporating heating surface of boiler tubes were repeatedly increased the verti

26、cal tube screen, using mixed header and not in the middle of heated drop tube in series to each other. Due to the temperature difference between different Panel next to the pipe, thermal stress, membrane water wall of seam damage. Check () the spiral water wall in addition to import and export is lo

27、cated outside the box, no mixing header in between, due to its arrangement of furnace size does not affect, even heat heat low errors will not result in the uneven distribution of steam-water mixture. (X) supercritical and subcritical case, when the water is heated to the appropriate phase transitio

28、n temperature under pressure, all vaporize into steam. (X) direct current boiler, water into steam steam-water two-phase region does not exist. The experienced heating and hot water into superheated steam in two stages. () Phase transition under supercritical pressure, when all water vaporized into

29、steam temperature, also known as the critical temperature. Different pressure phase transition temperature. (X) in the area near the phase transition point, the specific volume of refrigerant to rise sharply, and the greatest specific heat at constant pressure. () Under supercritical pressures, the

30、specific heat of water increases with temperature, the specific heat of steam decreases with increasing temperature. () Under in subcritical once-through boiler evaporating heating surface of multiple values that appear unsteady flow, the main reason is a low enthalpy of evaporating heating surface

31、inlet water. So in thelow-load operation must restrict entry low enthalpy of water. (X) the flowofrefrigeraevaporating heating surface of ambiguity existonlyinspiralwallverticatubecoilsdnotexist. Evaporation .education and training. (3) technology can guide operators work on the business, ready to s

32、olve engineering problems. (4) the text clearly technical problems with the cards on the table and retain the original information to the persons concerned, good technical approval and visa in a timely manner. 4, data administrator responsibilities (1) is responsible for all the project files, data

33、collection, production, binding, collating, storage (hand) and so on. (2) assist construction project “fuck“ and other technical and engineering quality, safety, and education. (3) to help the staff disclosure of production technology, security technology, and collecting keep written information in a timely manner. (4) with the personne