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1、第 1 页 共 29 页青春奋斗演讲稿：青春是用来奋斗there? After ignition, bustion 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? From a run standpoin
2、t, 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 e_it the standby power switch? Why the current transformer secondary side in the operation are not allowed to open? Why synchronous gen
3、erator e_citation 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 au_iliary power system, wiring for
4、 three-phase five-limb terminal of PT secondary voltage 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 1 页，共 29 页 - - - - - - - - - 第 2 页 共 29 页change? Generator inplete phase operation principle is what? Yn,d11 (Y0/-11) connection of generator-transformer systems, g
5、enerator open-phase running any help? Why to install 100% stator grounding protection for large generator? Why does not allow running secondary short circuit? Generator e_citation, e_cited, what is the of the overe_citation limit? Generator loss of e_citation in the running, what is the impact on th
6、e system and the generator itself? Anti-cuozhong on the prevention of e_citation system of generator 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 operat
7、ion of power plants and power systems are there? Try discussing malignant electric misoperation, which 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 switch
8、ing operations should focus on 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 2 页，共 29 页 - - - - - - - - - 第 3 页 共 29 页preventing misoperation accident? New operation or after majorrepair of transformers why test? Try discussing steps measured with a Megger insulatio
9、nresistance 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 disk can be divided into manual and two oil turbine; oil turbine disc wheel car,
10、 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 e_plosion-proof steam from a wind room, _, _separator casing into the ground to prevent
11、 the mill e_plosion 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, to achieve load changes.Sealed Air for coal 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - -
12、- - - - - - - - - 名师精心整理 - - - - - - - 第 3 页，共 29 页 - - - - - - - - - 第 4 页 共 29 页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
13、sources (mainly alternative oil source) 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/
14、3 rated speed or first alternate source failure occurs, the second spare source automatic switch.Third alternative oil source is provided by DC sealing oil pump.Main fuel tank e_haust throttle should be located 2 steel closing door operation handwheel locking is not allowed and obvious warning signs
15、 should be hung.Steam engine room 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 名师资料总结 - - -精品资料欢迎下载
16、 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 4 页，共 29 页 - - - - - - - - - 第 5 页 共 29 页not interrupted before static.Shaft seal overflow overflow to #8 the low pressure under normal conditions, when #8 the low pressure overflow when the outage to the condenser.Sliding pressure operatio
17、n of deaerator may avoid deaerator steam source for throttling losses.Normal operation of steam turbine steam distribution mode for steam distribution nozzle.After the turbines stopped, if the rotor cannot rotate for a short time, rotor _ _ under bending, highest in _ _ highs at this point rotor sho
18、uld be reset, close the hydrophobic _ _ cylinder, keeping _ up and down temperature difference between cylinder _ monitor rotor _ _ 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 5 页，共 29 页 - - - - - - - - - 第 6 页 共 29 页deflection, when after you verify that the roto
19、r is, and then manually turning 180 o.When turning the motor over current or rotor disc doesnapos;t 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 to transportation of saturated
20、water, the pump is most prone to cavitation _ _, therefore is posed of _ inducer _, and at the time of installation ensure the pump inlet has some highly _ _ intrusion, and design _ e_port recycled _ tubes, also in order to solve this problem.When the condenser when the water level is too low _ sett
21、ing up _ 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 6 页，共 29 页 - - - - - - - - - 第 7 页 共 29 页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 hea
22、t transfer does not occur._ turbine cold starts, heat transfer of steam to the cylinder wall is based on condensation heat transfer and convective heat transfer in two ways at the same time.(_) the furnace higher e_cess air coefficient, smaller chemical heat loss due to inplete bustion.( ) Boiler of
23、 soda e_pansion is inevitable. Start-up incorporations, boiler-DC operation, 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 b
24、oiler steam temperature and load parameters._ boiler steam flow is divided with double built-in startup separator designed for munity process. During bustion of pulverized coal in boiler, o_ygen 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 7 页，共 29 页 - - - - - - -
25、- - 第 8 页 共 29 页content, the lower the NO_ 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 the pop tour entrance, inertia and hysteresis temperature change is smaller. In disguise near the heat transfer
26、 coefficient of steam increases to a ma_imum at first and then quickly lower. Control of start-up separator outlet steam temperature, that controls the boiler heating and evaporation, thermal heat distribution.(_) as the direct current requirements for operation of the boiler feedwater quality was m
27、uch 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 parameters can be used in the furnace, working one or two times, connecting multiple hybrid, has a higher mass flo
28、w, suitable for large supercritical pressure once-through boiler.(_) this-is the biggest characteristic of evaporating heating surface of boiler tubes were repeatedly increased the 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 8 页，共 29 页 - - - - - - - - - 第 9 页 共 29
29、 页vertical tube screen, using mi_ed header and not in the middle of heated drop tube in series to each other.Due to the temperature difference between different Panel ne_t to the pipe, thermal stress, membrane water wall of seam damage.Check () the spiral water wall in addition to import and e_port
30、is located outside the bo_, no mi_ing 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 mi_ture.(_) supercritical and subcritical case, when the water is heated to the appropriate phase trans
31、ition temperature under pressure, all vaporize into steam.(_) direct current boiler, water into steam steam-water two-phase region does not e_ist.The e_perienced heating and hot water into superheated steam in two stages.() Phase transition under supercritical pressure, when all water vaporized into
32、 steam temperature, also known as the critical temperature.Different pressure phase transition temperature.(_) in the area near the phase transition point, the specific volume of refrigerant 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 9 页，共 29 页 - - - - - - - - -
33、第 10 页 共 29 页to rise sharply, and the greatest specific heat at constant pressure.() Under supercritical pressures, the specific heat of water increases with temperature, the specific heat of steam decreases with increasing temperature.() Under in subcritical once-through boiler evaporating heating
34、surface of multiple values that appear unsteady flow, the main reason is a low enthalpy of evaporating heating surface inlet water.So in thelow-load operation must restrict entry low enthalpy of water.(_) the flowofrefrigeraevaporating heating surface of ambiguity e_istonlyinspiralwallverticatubecoi
35、lsdnote_ist. Evaporation .education and training.(3) technology can guide operators work on the business, ready to solve engineering problems.(4) the te_t clearly technical problems with the cards on the table and retain the original information to the persons concerned, good technical approval and
36、visa in a timely manner.4, data administrator responsibilities (1) is responsible for all the project files, data collection, production, binding, collating, storage 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 10 页，共 29 页 - - - - - - - - - 第 11 页 共 29 页(hand) and
37、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 personnel concerned to carry out th
38、e measurement of quality and safety checks, and technical information.(5) according to the data, to the conservation section chiefs will report on the situation.Four job agencies, conservation management to achieve good conservation, achieve a standard, we must establish a sound management system, t
39、o ensure smooth progress.Under the unified leadership and management at different levels, to ensure that the concentration of decision-making power and unity of mand, and a chain of authority, management at different levels; Division of labor and cooperation, so that the working groups towards the d
40、irection of professional development to ensure corporate goals and conservationponent objectives of coordination, collaboration on the various functions of the body in 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 11 页，共 29 页 - - - - - - - - - 第 12 页 共 29 页action, c
41、oordination between the functional departments and managers, the entire management organizations to ensure that capable, efficient, multi-functional.Under the Chongqing Municipal landscaping management standards and the technical specifications of urban landscaping projects adopt the following appro
42、ach working mechanism.Will this unit dedicated to the conservation section is divided into four groups: the trees and shrubs to the conservation group (responsible for measures such as the shading); full-time mechanical maintenance group (responsible for watering, cooling, spray during the day), law
43、n maintenance groups and plant groups.Section with garden plant professional engineer 1, each equipped with the professional technician 1, 2 technicians, carry out their duties. By the Resident Engineer of the conservation section chiefs and marketing grasp work and coordination.After five, lawn mai
44、ntenance and management of plant construction, often with a 1-2 lawn maintenance can grow into the fullness of the week.After the lawn grow, but also to carry out 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 12 页，共 29 页 - - - - - - - - - 第 13 页 共 29 页regular mainte
45、nance and management, to ensure the lawn landscape continues for a long time.Lawn maintenance management including: irrigation, fertilization, pruning, weeding and other links.1, irrigate irrigation lawn fertility environments can be improved, adding water plant the lawn, is a guarantee of normal la
46、wn.In view of the lawn during the growth season, lawn and the environment is in a State of flu_, coordination of water and soil and improving the microclimate of the Center, water cannot be implemented according to a fi_ed pattern, following a number of technical points for reference.(1) the irrigat
47、ion time growing season, according to the different periods of precipitation is e_tremely important and timely irrigation of different grass species.Can generally be divided into three periods: turned green before the rainy season.High temperatures during this period, transpiration, water requiremen
48、ts, and is one of the most crucial irrigation under soil water retention properties of strength and rainy periods during which Bush 2-4. 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 13 页，共 29 页 - - - - - - - - - 第 14 页 共 29 页 largely ceased during the rainy season
49、irrigation.Air humidity during this period, grass transpiration decreased soil moisture content has increased to a level sufficient to meet the needs of lawn growth. to yellowing of the leaf after this period before the rainy season precipitation, evaporation is greater, while the lawn is still in a
50、 great stage of life activities, pared with the previous two periods, lawn water requirements increase at this stage, if not timely irrigation, not only affect the growth of grass, also causes yellow.At this stage, according to 4-5 of irrigation.In short, grass types, water requirements are differen