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Steam tracers

STEAM TRACING SYSTEM Download catalog   The Central European climate imposes special requirements concerning the protection of industrial transferring appliances in chemical plants, refineries, petrochemical and other plants in order to protect them from low temperatures. This kind of protection is guaranteed by steam tracing system, which is based on the trace lines. Steam tracing systems protect industrial plants from the freezing or cooling of the flowing product. A steam tracing system also ensures the right viscosity of the flowing medium at such a level that it protects against any unwanted rise of the flow resistance. In the picture we can see a typical loop of the steam tracing system with some steam tracers. The temperature decrease should be prevented by the steam which heats a technological pipeline inside which there is some chemical product. Pressure of the heating steam (steam saturation temperature) is set on the basis of the minimum required product temperature for technological appliances. THE IDEA OF THE STEAM TRACING SYSTEM. a production engineer sets the required product temperature; the maximum operating level is set, in the way that the steam saturation temperature should be higher than the product temperature; steam tracing system is designed for the steam flow rate of the order of 20 m/s; the length of the steam tracer should not exceed 90 m for the pipe's dimension d=25 mm; the optimum length of the heating loop from steam distribution collector to condensate collection collector should be between 60 - 80 m ; applied dimensions for steam tracers are DN15, DN20, DN25; a compensation system for the steam tracers should be foreseen; the number of the steam tracers is calculated, you can for example use the Zamkon ' s computer program. Practical side of the steam tracing system's construction is based on assembling many steam tracer sections at the same time. For this purpose steam distributors are installed on the steam pipelines - to ensure the correct steam distribution, as well as condensate collectors which carry away the condensate to the condensate outlet pipeline. A steam trap series is installed on the condensate collectors. This kind of solution ensures an easy access to every drainage point as well as simplicity of the control and servicing. Modern steam distribution stations (RFM) and condensate collection stations (ZFM) produced by Zamkon are currently installed on the steam heated pipeline systems. From the main steam pipeline, through the steam distribution station, steam is distributed to the individual steam tracers installed along the heated pipelines. The condensate from the steam tracers resulting from the steam condensation after several tens of meters gets to the main condensate collection pipeline through the condensate collection station ( ZFM).Condensate collection stations with thermostatic steam traps in an isolation station Condensate collection station with inverted bucket steam traps without isolation Steam distribution station without isolation There are two types of steam traps used in steam tracing systems: inverted bucket steam traps in a whole range of pressures thermostatic (bimetallic) steam traps only for pressures above 0,4 MPa (for easier servicing of the steam tracing systems, use of bimetallic steam traps with a fluid temperature regulatio is recommended). Other types of steam traps are not recommended either because of the steam lost and short life or because of large sizes and high price. Until recently the stations were made in a traditional way, from a prefabricated pipe and sockets with stop valves welded to it. It used to take a lot of room on the installation and the stations had a shorter life. RFM and ZFM stations made by Zamkon company are the so-called "the new type stations" where the most important part is the collector with factory-made and built-in cut-off valves. It allows to save up to 50 % of extra space. The collector is made from steel forging modules. It lengthens their life and increases their esthetical aspects which in our days is especially taken into consideration when designing new installations. It is also important that the built -in cut-off valves are replaceable, including valve seats. It allows a quick replacement without the need of either the station or individual elements being disassembled. Zamkon company offers the above mentioned stations as a complete device ready to be installed at the destination point. It consists of a manifold with valves, drain valves, steam traps, post and steam tracers in accordance with the enclosed figures (fig. land fig. 2). RFM / ZFM stations and support posts can be modified according to the client's requirements. At present Zamkon is the main company on the Polish market which offers the stations as a set which really helps the contractor in the assembling of the whole steam tracing system. The cost of the new and old type station is comparable. Final comments: Design, devices delivery and installation of steam tracing systems are not an easy subject. For that reason it is recommended to entrust their execution to a specialised company. CONDENSATE COLLECTION STATION ZFM As part of design, execution and delivery of devices Zamkon has realised so far the following investments: Sulphur Processing Plants "Siarkopol" Tarnobrzeg 1992 - steam tracing system for liquid sulphur pipelines, technical advisement, supply of steam traps, supervision of the execution. Petroleum Refinery "Lotos Biopaliwa" Czechowice - Dziedzice 1994 - steam tracing system for oil transmission pipelines, supply of equipment - inverted bucket steam traps; Chemical plants "Z.Ch. Police" Police 1997 - satellite steam tracing system for gas preparation, design conception, supply of manifolds and steam traps, supervision of the execution; Nitrogen plants "Anwil" Wloclawek 2000 - PCV II Complex, steam tracing system at the plant, supply of equipment -inverted bucket and ball float steam traps; Chemical Plants "Police" 2003 - steam tracing system, conception design, supply of equipment - WZ Inverted bucket steam traps, manifolds, supervision of the assembly Lurgl Poland S.A.; Hydrocomplex Gllmar 2005 - steam tracing system, supply of bimetallic steam traps Petrochemical plants "Petrochemia Blachownia" Kedzierzyn - Kozle 2006 (Prochem S.A.) - steam tracing system, design conception, supply of equipment - WZ inverted bucket traps, bimetallic steam traps, steam distribution stations, condensate collection stations, supervision of the assembly; Refinery "LOTOS Biopaliwa Sp. z o.o." Czechowice - Dziedzice 2008 (Prochem S.A.) - steam tracing system, condensate recovery unit, design conception, supply of equipment - WZ inverted bucket steam traps, bimetallic steam traps, steam distribution stations, condensate collection stations, supervision of the assembly; At the present we are realizing 3 new investments: Refinery "Grupa LOTOS S.A." Gdansk 2008/2009 (Lurgl S.A.)-steamtraclngsystem on CDU/VDU installation, design, supervision of the execution, supply of steam traps, gate valves, steam distribution stations, condensate collection stations. Refinery "Grupa LOTOSS.A." Gdansk 2008/2009 (Fluor S.A.)-supply of steam traps, strainers, steam distribution stations, condensate collection stationsfor INTERCONNECTIONS installation. Refinery "Grupa LOTOSS.A." Gdansk 2009-supply of steam distribution and condensate collection stations.