Slavonski Brod - Croatia
THERMAL HEATER - TYPE VKSOIL HOT OIL BOILER -
Thermal heater aThe m heater a
coil
l Heater
heater heater workpipe
liquid fuel liquid
oil is fully automated unit for heating thermal oil, withforced (controlled) circulation. ost important part of the iscylindrically bended tube , with thermal oil which is circulating through(using circulation pump) and heating. All types of heaters are cylindrical,with vertical or horizontal installation mode s. is made in so-calledblock construction, which means that all equipment necessary for work ismounted to the and is ready to , immediately afterconnection of all necessary lines and electricity. As a fuel can be used allstandard types of s and gases, as well as /gas combination.Regulation of capacity is fully automated, as one-level, two-level (50-100%)ormodular (in area 1-3).
THERMAL INSTALLATIONOIL
Thermal installation consists of pipeline , armature and all otheradditional equipment from to consumer, as shown on the
thermal oil plant. Thermal oil is circulating through the system usingcentrifugal circulation pump (2), which is placed in return line, in front of theheater. Passing through the heater (1), thermal oil is heated to the necessarytemperature and directed to the consumer (6). Regulation of temperature(capacity) is fully automated, through the regulation device (8) (engine valve,regulation amplifier and impulse organ). When thermal oil is cooled in aconsumer, it passes through the ventilation tank (4) where centrifugal movement separates air from oil steam andthrough the pump puts it back to the heater to be heated again. Excess of the thermal oil volume, made by expansion, iscarried away through the tampon (lower part of the ventilation tank, where excess of the oil is cooled) and expansionline to the expansion tank (3). Static pressure in closed systems (as on the scheme of thermal oil installation) ismaintained by compressed air or nitrogen which is placed above the oil in an expansion tank (3). Nitrogen as neutralelement is more favorable because it can assure chemical stability of thermal oil. Complete volume of thermal oil ininstallation is placed in tank (5), out of where, using oil pump (7), is made first filling of installation and discharge at
p o s s i b l e e m p t y i n g .Equipment and installation ofthermal oil are manufacturedi n a c c o r d a n c e w i t hregulations DIN 4754 andVDI 3033.Beside above described, so-called close system, inspecial cases can also beapplied open system ofthermal oil. In that system,due to a reduct ion ofoxidization (aging) of thermaloils, expansion tank andventilation (tampon) tank arenot insulated, which ensuresoil temperature in expansiontank bellow 60C, at whichtemperature oxidization isminimized. In that case,expansion tank is placed atminimum of 5 m above thehighest installation point, inorder to ensure static pressurein the system.
oil s sheater P&I diagram
of
Scheme of thermal oil installation
Boiler station VKS 1000 with steamgenerator
1-Thermal oil heater2-Circulation pump3-Expansion vessel4-Dearator vessel5-Thermal oil tank6-Oil filter7-Filling pump8-Temperature control9-Consumer10-Nitrogen
Thermal oil startThermal oil return
Air/NitrogenDrain of thermal oil
MeasurementImpulse
Type VKS 100 200 400 600 700 1000 1250 1500 2000 3000Nominal efficiency kW 80-150 150-250 280-500 520-650 650-750 750-1000 1000-1400Heating area m 6,5 10,5 18,5 24,5 29 39 59 64 92 118Content of thermal oil lit. 38,6 77 170 292 337 495 700 1202 1710 2686Normal difference intemperature of thermal oil t
C 40 40 40 40 40 40 40 40 40 40
Normal pressure drop ofthermal oil through the boiler bar 1-2,2 0,8-2,2 1,5-3 1,5-2,5 2,5-3,5 1,5-3,5 2-4 2-4 2-4 2,5-5
Thermal oil connection (P) NO 32 32 50 65 65 80 100 100 125 125Efficiency level* % 88-89 88-89 88-89 88-89 88-89 88-89 88-89 88-89 88-89 88-89Consumption of extra light oilkg/h 7,6-14,4 14,4-24 27-49 50-63 63-73 73-97 96-135 135-170 170-242 240-340Consumption of natural gasNm /h 8,8-16,6 16,6-27,7 31-56 58-73 73-84 84-112 111-156 155-195 194-279 275-390Installed power kW 5 8 12 14 17,5 22 25 27 33,5 62
Boiler dimensionsA mm 1500 1650 2300 2300 2580 2970 3750 3650 3750 4800B mm 790 930 1120 1280 1300 1450 1450 1850 2300 2360
C mm 1600 1750 2400 2400 2710 3090 3900 3800 3900 5000D mm 1140 1280 1470 1650 1680 1800 1800 2200 2700 2760E mm 200 250 250 300 300 350 350 450 500 550
F mm - - 1450 1620 1540 2420 2420 2850 3300 3360G mm - - 3300 3300 3580 3970 4750 4650 4750 5800
1400-1750 1750-2500 2500-3500
Weight kg 450 750 1400 1850 2080 3100 3800 4800 6200 8600
Notes:* Efficiency level is expressed for the operation mode with thermal oil temperature of 200-240C.Boilers can be made in horizontal position (for dimensions please contact us directly). Thermal oil is not calculated in boilers' weight.Boilers can have larger nominate efficiency (for dimensions please contact us directly).We reserve the right to change the terms.
APPLICATION
Scope of application for thermal oil installations is very wide; practically, it can be used in any of the processes withindirect heating, i.e. in:
ood industry for heating of presses, dryers, woodimpregnation
W
C
M
T
F
G C
A
L S
I A
hemical and petrochemical industry for heating ofcolumns, autoclavs, duplicators and other devices inproduction of synthetic materials, paints, lacquers, acidsand drugs
etal processing industry, especially in surface treatmentof metal: degreasing, chromating, galvanization, painting,drying
extile industry in colouring, thermal fixation, drying,heating of rollers, presses
ood industry in washing, cooking, baking, conservation,deodorization
raphic and paper industryonstruction industry: heating and drying of construction
material's depots, production of concrete elementsgricultural industry: heating of dryers for grain products,
heating of greenhouses, farmsaundries: heating of washing and drying machinesoap and cleanser industry: heating of tanks for cooking,
autoclavsndustry of wallpapers and packaging: heating of pressesutomotive industry: heating of extruders, presses for
polymers, injectors, lacquering plants, plastifying lines,eloxing lines, degreasing lines.
Beside above mentioned, there are lots of interestingpossibilities for use in:
production of warm, hotwater and high pressure steamwarming of large tanks formasute, oil, bitumenpanel heating system for heating of large areas with radiation.
Sketch of VKS boilers with dimensions
uro akovic Kotlovi d.o.o., dr. Mile Budaka 1, 35000 Slavonski Brode-mail: [email protected] web: www.kotlovi.hr
ADVANTAGES
VERY HIGHWORKING TEMPERATURES OF PRIMARYMEDIUM
WORK ON LOW TEMPERATURES,
CORROSION RISK FREE
PRECISE REGULATION OFTEMPERATURESIMULTANEOUS FEEDING OF MULTIPLE CONSUMERS
POSSIBILITYFOR HEATINGAND COOLINGSMALL DIMENSIONS OF BOILER
PRODUCTION AND HEATING OF SEVERALDIFFERENT ENERGETIC MEDIUMS FROM ONESOURCE
INSTALLATION UNDER LOW WORKINGPRESSURE
THERE IS NO NEED FOR EQUIPMENT ANDINSTALLATION FOR CONDENSATE
PLANTS
- , up to 320 C without pressure in thesystem.
- due to a low freezing temperatures of thermal oils (- 5 up to - 40C)installation can be located in an open space and can operate at low outside temperatures.
- , since the thermal oil is in the installation and there are no deposition of hardparticles in the system
- of technologicalmedium ( 3 C)- , with different temperature levels and different
secondarymediums, from one source (heater).- in technological processeswithsamemedium.- . Boilers and equipment are made in small and adequate
installation dimensions and do not require much space.-
Through thermal oil as primary mediumcan be obtained steam, warm, hot and sanitary water,hot air and other energetic and technological mediums.
-Maximum working pressure in
installations for open system is 0,5-1,5 bar and 1,5-6,0 bar for close system. Installations are simple andcheaper than classical steam and hot-water
installations, and can be placed in simpler and cheaperboiler stations (even next to the consumer), withpossibility of automatic operation, without constantsupervision..
-, therefore
there are no losses on condensate and excess steam.
09/2005
Manager: +385 35 44 47 55Fax: +385 35 44 75 03Marketing/Sales: +385 35 21 84 52Financials/Purchase: +385 35 44 46 86Accounting: +385 35 21 88 37Production: +385 35 21 84 53Design: +385 35 40 81 40Service: +385 98 22 90 89
