speed, the greater the rate of fuel ejecting from the impeller. The pump work is illustrated on the scheme (Fig.18) .the fuel acceptance line there are two pumps ЦСП - 57 mounted parallel to provide the necessary feed, which has to correspond the average daily fuel consumption.the distribution line one pump can be mounted.
6. Selection of fuel purification means
purity of the fuel is an indicator which determines the efficiency and reliability of the engine operation, especially fuel equipment. Fuel pumps plungers and liners clearance is 1.5-4.0 microns. Dirt particles which size is greater than 4.0 microns cause increased wear of the fuel equipment that determines the relevant requirements to fuel purification.fuel purity is estimated by filtration coefficient in accordance to GOST 19006-73, which represents the ratio of the filtration time through a paper filter at atmospheric pressure of the tenth portion of filtered fuel to the first one. Filterability is affected by water presence, mechanical impurities, resinous substances, soaps of naphthenic acids. In commercial diesel fuels there is contained mostly dissolved water from 0.002 to 0.008% which does not affect the filterability coefficient. The undissolved water quantity of 0.01% and more leads to filterability coefficient increase. The allowed content of mechanical impurities in commercial diesel fuels produced by refineries is 0.002-0.004%. Sulphur content has not to exceed 0,2%.
СТ - 500-2М is going to serve as a fine filter-separator.
As filters capacities are less then one of pump, it s necessary to install them parallel. Quantity of СТ - 500-2М filters:
ФГН - 120 filter only one is needed.
7. Equipment for fuel distributing, characteristics of equipment and the distributing process itself
Equipment delivery areas fuel must meet for enterprises and operations to be performed in this area. The points of aviation kerosene fuel- expected to perform the following operations:
· lower fill fuel tanks;
· cleaning of fuel impurities and water;
· registration number issued by the fuel;
· protecting equipment from the effects of hydraulic shock;
· neutralization of static charges;
· automatic stop the flow of fuel when filling the tank to a predetermined level.performance of such operations needs next equipment:
· fine filters and water separators;
· device for pressure control and fuel consumption;
· liquid level alarm device;
· counter and measuring apparatus of AWC-liquid;
· devices of system of automatic supply stop of fuel to refueller;
· neutralizer of static electricity.equipment must meet next requirements:
· fast connection and disconnection at AC fuelling;
· provide and support necessary pressure at AC connecting pipe;
· provide and support necessary fuelling efficiency.
· Development of the technological receiving, storage, prepare and distribution linesof production line in our work means creation of technological scheme which represents processes of receiving, storage, preparation and delivery of fuel to aircraft. Also such production lines provide internal storage of fuel, its transfer from tank to tank and carry out maintenance according to purpose of fuel.
Conclusion
I ve got some skills in solution of problems of necessary equipment for a tank farm selection. I ve familiarized to the tank farm equipment complex for fuel delivery, determined the total volume of tank farm reservoirs and selected the most suitable types.selected equipment was taken from the real data and can provide normal operation of an enterprise.
Fig.19. Technological scheme of fuel depot
1 - reservoirs; 2 - valve; 3 - grid filter; 4 - manometer; 5 - pump; 6 - safety valve; 7 - fine filters; 8 - counter; 9 - shock absorber; 10 - distributing hoses
Sources
C.Г. Едігаров, С.А. Бобровський Проектування та експлуатація нафтобаз і газосховищ
http://manceethat.ua/news/neftenalivnye_terminaly
http://ngm-group/rezervoir/spravochnik/one_swim_roof/
http://pas.zp.ua
В.Я. Карелін, А.В. Мінаєв Насоси та насосні станції
