how often shouls boilers be inspected?
99989
The frequency for boiler inspections is determined by the state and usually performed by the insurer. Usually annual inspections are called for on power boilers, heating boilers may go for 3-5 years.
1107428
low pressure steam boilers can not exceed 15 pis at normal operating level high pressure steam is any thing above 15 pis\nlow per sure used manly for heating while high pressure is used for mechanical processes like power generation no mid pressure steam
141611
between 1 and 30 days depending on how frequently its smoked.
361244
first we must know turbine's inlet pressure and temperature (depend on design ) , mass flow of steam to turbine (for 2,5 MW)  and effiency of turbine (for calculate of exhaust conditions )\n\nexample : 100 MW double exhaust steam turbine need to 160 ton steam at 500 C and 50 bar for high pressure   and 40 ton steam at 200 C and 5 bar for low pressure. \n\nthere are many kind of boiler . if you dont know some require value then you can not calculate boiler pressure , temperarture and  stages (eco , eva , superheater) .\n\ni can say only about capacity of boiler  ; \n\ni f we accept turbine effiency = 70 % \nthen amount of approximately steam power = 2,5 . 100 / 70 = 3,571 MW \nand \nİf we accept boiler effiency = 85 % then real capacity of   \nboiler = 4,2 MW \nthis value near capacity of boiler. \n\nboiler inlet condition = 1 bar 50 C (i accept) \nenthalpy of inlet water = (from compressed water tables) = 200 kj/kg \nmass of flow = 5 ton/hour (i accept) = 5000 kg/hour = 5000/3600 kg/sn= 1,39 kg/sc.\n\n3,571 MW = 3571 kw = 1,39 . (hç-200) \n\nhç= outlet enthalpy of boiler \n\nhç = 2769 kj/kg (this value must stay at superheated region) \nwe must look to superheated region at thermodynamic tables. \nand we can find best outlet conditions for 2769 Kj/kg. and temperature can not be high than 500 C for 2769 kj/kg. \nwe must take care to pipe line length because some losses cause to change superheated steam to saturated steam or near conditions. \nif superheated steam early change conditions then blades of turbine can be damaged. at the end of turbine must be saturated steam or little bit big superheated steam for protection of blades. \nfinally \n4 bar , 160 C conditions enough for 2769 kj/kg.\n\n\nsummary : \nboiler inlet 1 bar 50 C \nboile r outlet 4 bar , 160 C \nmass of flow = 5 ton / hour \n\nalso next step , calculate of boiler's economizer , evaporatör , superheater , main steam line pipe dia. , pumps (circulating and feed water) , drums , recirculation lines , condenser , auxilary cooling water system (for cooling of condenser) , gland steam line , regulating system , control syst. , vacuum sys. (if necessary for condenser) , water treatment sys. , chemical dosing points ,  etc. etc. etc.\n\nturbine inlet conditions = 4 bar , 160 C 2769 kj/kg\n\nnet power = 2,5 mw = 2500 kw \n\n2500 = 1,39.(2769-hs) \nhs = 970 kj/kg (enthalpy of at the end of turbine ) \n\nthis entalphy shown turbine outlet conditions \n\n0,5 bar 85,4 C or 0,2 bar 85 C (vacuum)\n\nwater must be cooled up to 50 C (inlet of boiler)
655058
I am checking.\n\nOk I got it.\n\nProbably falls under the Postal Inspection Service.\n\nClick on the Employment section at the website below.
188321
No, not usually, but logs are usually kept, which can be reviewed later if there is a problem.
324957
I would need more information about the chemicals in the factory, but...\n\nThis would include a regular check of temp charts, against approved limits and stock rotation etc.
1034993
I get tested regularly for peace of mind
1183099
ask the company to be more reliable
1057680
Go to this website:\n\nhttp://www.extension.csuhayward.edu/certificate/home_inspection/index.shtml
808567
pay for one from a house inspector
30159
http://www.home-inspect.com/\n\ngood school
778331
over a long time now.  check the local paper.
503515
Keep an eye on your property as well. Do a physical check at least once a week. We just moved from an apartment complex that looked good on the surface but had many many health code voilations. Plumbing leaked and caused toxic mold under the sinks in the kitchen and bathroom, Mice, spiders, floor with an extreme weak spot, When I sent a certified letter, asking for repairs to be made, The landlord called Child services on me!
536110
local newspapers print it everyday .check daily youll know everyday from then on
601359
What type of oil fired plant are you refering to steam boiler/turbine or combustion turbine used in either the simple cycle or combined cycle mode. For a steam cycle, and without considering the practicality, one can add feedwater heaters, replace the turbine or install more efficient internals, increase steam pressure/temperature, better burners, more efficient motors, install variable speed drives on the bigger fan (forced draft, induced draft) motors, better insulation.\n\nNot sure how to do this.\n\nSome additional thoughts.\n\n>How clean do you keep the condenser?\n>Ditto for FW heaters. Do you calculate LMTD for the heaters?\n>Do your operators maintain all the parameters, e.g., SH temperature that affect heat rate? Do they have a HR parameter display, HR goals?\n>How clean is your turbine? When was it last opened? Washed?\n>Have you tested for seal leakage HP to IP?\n>Don't know your mode of operation, i.e., base, peaking, but do you use full arc or partial arc admission?\n>If your a peaker, and assuming you're not a UP, have you looked at variable pressure operation?\n>Peaking or cycling - have you optimized your start ups? Do you bottle up the boiler?\n>How clean is the boiler, especially, SH and RH passes?\nAdded:\n>GE and W used to offer high efficiency L-0 blades. How old is your unit? Do you have these blades installed?\n>Have you looked for hard particle erosion on your nozzle block and 1st stage blades?\n>Do you chemically clean the boiler? Do you have chordal thermocouples installed?\n>What condition is your air preheater in?
810898
go to your local contractor and ask