blue means business GAS TECHNOLOGIES AND INDUSTRIAL PROCESSES

Transcription

1 blue means business GAS TECHNOLOGIES AND INDUSTRIAL PROCESSES

2 EFFECTIVE TECHNOLOGIES is one of the most effective energy sources available to perform various industrial processes. Numerous technologies offer various types of industries the means to improve their production quality while increasing profitability. An overview of these applications follows so that you can take note of their specific qualities and advantages. A team to serve you Gaz Métro offers you a team of experts in rates and financing. They will be able to offer you sound advice on the best possible solutions with regard to using natural for your business. Groupe DATECH s specialized engineers work in close collaboration with our advisors to recommend the most effective technologies available to improve the energy performance of your enterprise.

3 Graphite block Pilot Pilot Water-cooled sidewall Preheating regenerator Recuperating regenerator Oxygen in boundary layer in Combustion air EFFECTIVE TECHNOLOGIES Oxy- burner The oxy- burner is used mainly in metallurgy for melting metals. Oxygen and natural supply is regulated by computerized control, which adjusts the intensity of the flame according to the various phases of the industrial process and temperature conditions in the furnace. In addition to temperature, the size, shape and intensity of the flame may be regulated. The oxy- burner owes its efficiency to its higher temperature, thereby increasing productivity and reducing operating costs. > improved product quality > reduced quantity of slag > lower maintenance costs Regenerative burner The regenerative burner is a high performance heating unit used to directly heat high temperature furnaces. It includes a heat recovery device that is used to preheat furnace air. This type of natural burner improves heating performance. > adaptable to existing furnaces > increased furnace performance > higher efficiency > savings in natural consumption ranging from 30 to 60%. Low excess-air burner The low excess-air burner reduces the natural consumption of a high capacity boiler, thereby optimizing its performance. It is most efficient at low and medium load. The combustion in this burner requires less air and consequently produces lower atmospheric emissions. The burner is reliable and effective, while featuring low maintenance costs. > adaptable to existing boilers > increases boiler efficiency > reduces operating costs Auto-recuperator burner In many industrial processes, combustion air can be preheated with an auto-recuperator burner that combines the functions of combustion, heat recovery, exhaust of flue es and, in certain cases, regulation of furnace pressure. Such burners occupy less space, use less energy and are more efficient than conventional systems. > reduction of operating costs through recovery of flue heat > increased performance and productivity > stable operation maintains quality of material being processed Secondary air Primary air Inducer Combustion air Furnace wall Furnace Furnace wall

4 Cold water Radiants Fan Direct contact burners intake Hot air Heat transfer stainless steel rings Infrared radiation drying infrared radiation technology is a highly efficient option for increasing drying speed and capacity because of the high temperatures achieved. The increase in evaporation power through a natural infrared system corrects the humidity profile of a product, thereby significantly reducing drying time. > improved product quality > installation does not require major changes to equipment > low investment cost > even temperature > increases productivity Pocket ventilation Pocket ventilation, used in the pulp and paper industry, increases sensible heat. heated in a direct natural system is distributed through a pipe system at high pressure and transferred to the paper sheet by means of ducts located on the machine pockets. > increasing the evaporation rate by 7 to 10% > improved production quality > greater efficiency in felt cleaning, leading to energy savings > maintaining a stable and uniform moisture profile Direct contact burner Hot water Direct contact heating The direct contact heating system consists of a counter-current heat exchanger in which water comes in direct contact with combustion es. As it descends, the water absorbs heat from the hot es circulating upwards. Upon evacuation, the temperature of the es from natural combustion ranges from 5 to 8 C higher than that of the supply water. > remarkable thermal performance > efficiency reaching 95% or more > instant production of hot water > lower operating costs dehydration This high-performance method allows for virtually instant dehydration of finely pulverized particles inside a hot air stream. Direct heating improves efficiency compared with an indirect steam-heating system. > significant operating flexibility > higher temperatures compared with steam > significant increase in productivity > reduced drying time Compact immersed tube In immersed combustion, natural combustion es heat a liquid indirectly. Heat transfer is conducted by means of a tube immersed in the bath, through which the hot es resulting from the combustion of natural are channelled. These es are evacuated at the tube end situated outside the bath. > output efficiency that can reach 77 to 81% > reduced size compared with traditional methods, allowing for installation in restricted, narrow or shallow baths > excellent profitability Oxy-fuel cutting Oxy-fuel cutting is a method used to cut ferrous metals by oxidation. The use of natural in this process allows for remarkably accurate cuts. > no rework before welding, which reduces production time > cutting speeds matching those obtained with other fuels > potential savings of up to 60% of costs related to natural use > safer working conditions in shops Filter intake Hot air (180 C) Drying chamber Atomizer Product inlet Ai r Flue Starting point Cutting torch Cutting tip Combustive oxygen Cutting oxygen Immersed tube Cutting

5 Cold water bypass silencer silencer Heat transfer stainless steel rings Boiler flue intake inlet filter Generator turbine Heat recovery steam generator Supplementary burner Diverter valve Steam Process steam Generator Steam turbine Direct contact burner Hybrid recovery hot water system The hybrid recovery hot water system combines the benefits of direct-contact water heating with that of boiler flue recovery. This type of water heater allows for reduction of both costs and congestion. Its operation is simple: water flows through a heat transfer zone (packing) and is heated directly by rising boiler flue es and hot es from natural combustion in the burner. > high efficiency > instant hot water production > reduced congestion > low maintenance > low-cost installation Hot water Pulse firing combustion Used in heat treatment furnaces, pulse firing delivers excellent performance by using pulse firing burners with programmable microprocessors that reduce excess air. This process ensures improved temperature uniformity in the furnace. > improved product quality > increased productivity > conserves energy Cogeneration with turbine and combined cycle Cogeneration allows for the production of electricity by means of a natural powered turbine. In a single cycle, the flue es resulting from natural combustion are used to produce steam or hot water for use in industrial processes. The resulting steam can be used to generate supplementary electricity through the addition of a steam turbine; as well, this steam can be reused in industrial processes, which is then a combined cycle. > autonomous electricity generation > significant thermal output at high efficiency > can be regulated to meet electricity or steam demand > low environmental impact on single cycle Ceramic-fibre radiant tube The ceramic-fibre radiant tube is a heat transfer system through infrared radiation. The incandescent surface reaches 1,250 C and heats the steel tube surface, which then transfers the energy to heat the product. > no thermal fluid is used, with no ensuing heat loss > productivity is increased by raising the product temperature > tanks are heated individually > tank temperature is controlled automatically > uniform heat distribution throughout the burner surface Recuperation unit in wood dryers In the drying process, a major source of energy loss is through the air evacuated to maintain the correct humidity levels required for this process. Before this air is evacuated from the wood dryer, some of this energy can be recuperated by means of an air-air heat exchanger. Energy recuperated by this exchanger will then serve to preheat air entering the dryer. > energy consumption is reduced by 5 to 15% Pulse burners Gas-air premix Steel pipe Infrared radiation Ceramic-fibre surface Combustion exhaust chimney Fresh air intake Heat recovery system blower Grille vans Humidification damper

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