solid fuel (biomass-coal-pellet-wood) or oil/gas fired

SOLID FUEL (BIOMASS-COAL-PELLET-WOOD) OR
OIL/GAS FIRED, THERMAL OIL HEATERS
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KYK-HLZ SERIES THERMAL OIL HEATERS WORKING PRINCIPLE
It is very important to keep the oil velocity inside the tube a t a certain level. Having a low speed oil flowing inside the
thermal oil heater can cause crakingand this situation ruins the oil completely. As a result the heat transfer properties of the
oil dissapears. Preventing this fenomena is quite important because overheated heat transfer tube surfaces can be deformed
and cracks can occur. In this case fire inside the boiler in unevitable.
In Akkaya KYK-HLZ thermal oil heaters, the total length of the tubes and the pressure losses are calculated carefully and the
heaters are designed in this manner.
For the solid fuel fired boilers it is very important to have sufficient combustion chamber volume and grate area in order to
obtain efficient combustion. It is possible to get required dimensions for the combustion chamber in KYKHLZ model boilers.
Inner structure of the KYKHLZ boilers are consist of tube bundles
given the shape shown in the next figure. The number and
connection type of these bundles are chosen after the calculation
carried for each capacity.
According to the boiler capacity number of tube bundles are
placed on top of each other and connected to the inlet & exit
headers..
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KYK-HLZ SERIES THERMAL OIL HEATERS WORKING PRINCIPLE
The burners (gas-oil or solid fuel stoker) are placed to
the combustion chamber of the boiler as shown in the
figure. There are cleaning ports on top of the tube
bundles. Automatic tube cleaning option can be
installed upon request.
The useful heat of the flame
gases are transfered to the oil
while the flame is pasing in
between the tube passages.
The turning flame gases finaly
reaches to the stack exit
located in the middle. The
counter flow of flame and oil
at some parts increases the
heat transfer rate..
For the big capacity applications more than one boielr
can be installed and run in parallel. Akkaya Inc. provides
turnkey solutions for the thermal oil heating systems.
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KYK-HLZ SERIES THERMAL OIL HEATERS DIMENSIONS
KYK-HLZ series thermal oil heaters are manufactured according to the PED97/23 EC directive.
The tubes and the other materials used in the production is chose n according to the norms.
Welding operations are done by the certifcated welders . Approved WPS and WPQR 's are applied in the welding process. RT
control is carried out after the weldings according to the standard requests.
Akkaya Inc. has ISO9001-2008 QMS certificate.
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Akkaya Isı Makinaları ve Doğalgaz Sanayi ve Ticaret A.Ş.
İstanbul Office: Fevzi Çakmak Cd. Marmara Deniz Sit. E Blk. No:3-4 Maltepe / İstanbul - TURKEY
Tel: +90-216-459 78 92 Fax:+90-216-459 78 82
Factory: 1.Organize San. Böl. Yerlisu Sk. No:2 42300 Selçuklu/ Konya - TURKEY
Tel: +90-332-248 92 21 Fax: +90-332-248 77 10
email: akkaya@akkaya.com.tr http://www.akkaya.com.tr
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