Heat Exchanger Module for Industrial Applications

Transcription

1 G0 Heat Exchanger Module for Industrial Applications

2 EQUIPMENT for industrial processes Wide product range, High efficiency, Custom design Manufacturing processes often require different forms of heating, as for heat treatment and drying processes, which use air as a heat carrier. Apen Group has more than 45 years of experience in the study and production of hot air generators for drying equipment. Our Investments in R&D projects for the development and construction of energy efficient systems, allow the industrial customer to benefit from: reliable products, energy-saving advantages and low maintenance requirements which help to reduce the operating costs. Process safety and equipment s lifespan is guaranteed by high quality resistant materials and design. ApenGroup is able to supply an extended range of heat exchangers and to fulfill customized requirements. Our design department is able to support the customer in finding the optimal solution in any planning phase. Application Fields Coating and Painting Drying of food processes. Drying processes for components Ceramics drying processes Textile and clothes drying Heating in concrete making for construction industry Agricultural products drying as for Cereals and Tobacco. Textile and clothes drying Coating and painting Coating and painting Ceramics drying processes 2

3 EQUIPMENT for industrial processes Product Types Combustion chambers series G0 (heat exchangers) are manufactured in 12 different capacities ranging from 50 kw to 1170 kw of output, depending on the construction type, and can be fired either with gas or liquid fuels. Applications for AHUs and Rooftop (standard application: low t needs) G0XXXX and G0XXXX-TF series include basic models conceived to work in standard operating plants, i.e. common air handling units where temperatures differentials are not too high and air flow rates are consistent enough ( t values ranging from 20 to 35 C ). TF series differs from basic series because of its built-in front flue gas exhaust, installed on the same side as the burner, to ease installation in specific cases. Applications Processing Machinery (special application: hi t needs) G0XXXX-2 and G0XXXX-310 have been designed for special working conditions, such as process plants, painting or drying cabinets, or high static pressures of air). G0XXXX-2 exchangers can stand high pressure (up to 2,500 Pa) thanks to their solid construction and highresistance materials, while the advanced materials used for G0XXXX-310 exchangers allow these units to work at very high air temperatures (up to 280 C) or with high temperature differentials. Textile and clothes drying Industry Drying of food processes Ceramics drying processes 3

4 G0 series / Heat Exchangers Technical Features AISI 430 and AISI 310 stainless steel combustion chamber, with wide exchange surface Flame inversion furnace with three-pass, fully welded, flue gas layout. High efficiency heat exchanger made of AISI 441 stainless steel with low carbon content. The exchanger is formed by a streamlined tube bundle with conic section with an aerodynamic profile(low pressure drops in air circuit and high efficiency) Patented tube heat exchanger (Patent n. MI94U00260). Efficiency up to 94,6%. In compliance with all EC existing regulations. 4

5 Why choose G0? Reliability Quality Technology Ecology Security Advanced construction methods Efficiency up to 102% These are just some of the features that make ApenGroup s heat exchanger modules the excellence of the heating system. Choosing the Burner The following types of burners can be installed with GO modules Modulation Two stages (high/low flame) ON/OFF Gh modules can be installed with burners produced by main burner manufactures on the market. High efficiency exchanger modules can only be matched to gas burners. 5

6 GO / Features Table of materials The following table shows naming correspondence and content for steel types used in the heat exchangers G0: Other materials and/or requirement will be evaluated according to specific requests. Table of stainless steel materials USA EN FORMULA AISI X6 Cr17 AISI X8 CrNi AISI X2 CrTiNb 18 AISI X5 CrNi Condensate Drain When exchangers series G0 are assembled into Roof Top or air handling units that feature high air flow rates and minimum heat drop, a condensate drain system from the exchanger must be provided. All exchangers include five fittings for condensate drain. These fittings are installed on front, back, left and right manifold and on the bottom wall of back flue pipe. Condensate is allowed only if a gas burner is installed: it must be totally absent when oil burners are used. Condensate Drain Standard on the back ( A request on the front ). 6

7 GO / Assembling the module into the units AIR FLOW NOT ALLOWED The module can be installed into air heating units either vertically or horizontally. Air can be blown in two ways: PARALLEL FLOW: cold air flows from colder to warmer end of the exchanger (tube bundle). COUNTER-CURRENT FLOW: cold air flows from warmer to colder end of the exchanger (combustion chamber). You can choose the solution that best suits your needs. PARALLEL FLOW COUNTER-CURRENT FLOW: AIR FLOW NOT ALLOWED Modules in PARALLEL Assembling one or more modules When required power output exceeds max output or is below minimum output of a single exchanger, multiple G0xxxx modules can be assembled into a single AHU, RTU or process heater unit, thus covering any range of required output. Using convenient precautions, modules can be assembled either in series or in parallel and air flow can be parallel or counter-current to heat flow. Modules in series 7

8 G0 /Technical Data Model G07580 G07680 G07780 G07880 Type of Appliance B23 Ec Approval 0694BP0758 Nox Class 4-5 with Gas Burner LOW NOx min >91% max min >91% max min >91% max min >91% max Furnace Heat Input KW 24,8 34,0 49,5 43,0 61, ,5 100,5 137,0 96,0 131,4 195,0 Useful Heat KW 23,5 31,0 43,6 40,4 56,0 75,2 64,3 91,9 120,1 90,2 120,3 171,0 Combustion Efficiency % 94,8 91,2 88,1 94,0 91,3 87,9 94,0 91,4 87,7 94,0 91,4 87,7 Chimney Loss - Burner On % 5,2 8,8 11,9 6,0 8,7 12,1 6,0 8,6 12,3 6,0 8,6 12,3 Chimney Loss - Burner Off % < 0,1 < 0,1 < 0,1 < 0,1 Casing Losses % 1,83 1,64 1,46 1,26 Furnace Pressure Pa Furnace Volume m 3 0,06 0,12 0,24 0,37 Minimum Airflow *2 m 3 /h Max Pressure * Max Air Temperature * Model G07980 G08080 G08180 G08280 Type of Appliance B23 Ec Approval 0694BP0758 Nox Class 4-5 with Gas Burner LOW NOx min >91% max min >91% max min >91% max min >91% max Furnace Heat Input KW ,5 230,0 154,0 252,0 310,0 185,0 309,0 380, Useful Heat KW 108,1 184,7 205,9 145,0 230,2 275,0 173,9 282,1 335, Combustion Efficiency % 94,0 91,2 89,5 94,0 91,3 88,7 94,0 91,3 87,7 94,4 91,5 88,6 Chimney Loss - Burner On % 6,0 8,8 10,5 6,0 8,7 12,3 6,0 8,7 12,3 5,6 8,5 11,4 Chimney Loss - Burner Off % <0,1 <0,1 < 0,1 < 0,1 Casing Losses % 1,16 1,17 1,02 1,03 Furnace Pressure Pa Furnace Volume m 3 0,52 0,76 1,06 1,55 Minimum Airflow *2 m 3 /h Max Pressure *3 Pa Max Air Temperature *4 C Notes: 1) Efficiency - The efficiency rate is obtained with air flow rates at t of 35 K with inlet air temperature at 15 C. For different applications, ask our technical dipartment. 2) Minimum air flow rate - Minimum air flow rate has been calculated for a t value of 50 K, suitable for process plants or special applications. For more demanding requirements, where t > 50 K, see further information on efficiency levels. 3) MAX pressure - Max pressure is valid for models coded as G0xxxx and G0xxxx-TF; for models with G0xxxx-2 and Gxxxx-310 coding, max pressure is Pa. 4) Air MAX temperature - It is valid for all models but G0xxxx-310, whose max value is 270 C. 8

9 G0 / Technical Data Model G G08480 G08580 G08680 Type of Appliance B23 Ec Approval 0694BP0758 Nox Class 4-5 with Gas Burner LOW NOx min >91% max min >91% max min >91% max min >91% max Furnace Heat Input KW Useful Heat KW , ,5 Combustion Efficiency % 94,3 91,5 88,4 94,3 91,4 89,3 94,4 91,6 89,5 94,6 91,6 89,7 Chimney Loss - Burner On % 5,7 8,5 11,6 5,7 8,6 10,7 5,6 8,4 10,5 5,6 8,4 10,5 Chimney Loss - Burner Off % < 0,1 < 0,1 < 0,1 < 0,1 Casing Losses % 0,97 1,00 1,01 1,01 Furnace Pressure Pa Furnace Volume m 3 1,79 4,78 5,58 5,58 Minimum Airflow *2 m 3 /h Max Pressure *3 Pa Max Air Temperature *4 C Notes: 1) Efficiency - The efficiency rate is obtained with air flow rates at t of 35 K with inlet air temperature at 15 C. For different applications, ask our technical dipartment. 2) Minimum air flow rate - Minimum air flow rate has been calculated for a t value of 50 K, suitable for process plants or special applications. For more demanding requirements, where t > 50 K, see further information on efficiency levels. 3) MAX pressure - Max pressure is valid for models coded as G0xxxx and G0xxxx-TF; for models with G0xxxx-2 and Gxxxx-310 coding, max pressure is Pa. 4) Air MAX temperature - It is valid for all models but G0xxxx-310, whose max value is 270 C. 9

10 G0 / Dimensioni OC H2 H4 H3 OF L2 L L1 B H1 MODEL Size Chimney Weight TF series L* B H ØF ØC H1 H2 L1 Kg H3 H4 L2 G G G G G G G G G G G08580** * Thickness of gaskets and burner plate is not included in L value (overall dimensions). ** In G08580 model, L value refers to the distance between combustion chamber bottom and burner fitting. In fact, unlike in other models, in G08580 model the combustion chamber protrudes beyond flue hood on the back. Note: the diameter of the chimney is intended as nominal diameter; the fireplace is provided as a female attachment, the inner diameter is 3 mm larger than the nominal diameter, for example the nominal diameter of 250 mm corresponds to an internal diameter of 253 mm. 10

11 G0 / Dimensioni L L1 CH CV OF H2 H H1 MODEL Size B TF series L* B H ØF H1 H2 L1 CH CV G G G G G G G G G G G ** * Thickness of gaskets and burner plate is not included in L value (overall dimensions). ** In G model, L value refers to the distance between furnace bottom and burner fitting. In fact, unlike in other models, in G08580 model the furnace protrudes beyond flue hood on the back. 11

12 APEN GROUP S.p.A Pessano con Bornago (MI) - Italy Via Isonzo, 1 (ex Via Provinciale, 85) Phone Fax apen@apengroup.com Specifications in this catalogue are subject to change without notice.