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The economizers exhaust gas boilers GN ECO have been studied to be installed in all types of industrial processes when discharging hot gasses in the atmosphere. Hot gasses, flowing through the GN ECO are used to heat countercurrent, another fluid utilized in industrial processes, achieving important energy savings while reducing operating costs.
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TECHNICAL PARTICULARS
Safety thermostat setting 93degC
Noma! working temperature 85degC
Max. working pressure 3.0 bar
Test pressure, boiler 4.5 bar
Intended fuel - gas oil
Burners also available for heavy fuel.
Boilers may optionally be arranged for other temperatures and pressures. The boilers can be arranged for most normal power supply voltages and frequencies.
MATERIALS
In all models the boiler itself is built of boiler steel to DIN 17155 H2 while tubes is to DIN 17175 St. 35.8.1
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PYRO STANDARD EXHAUST-GAS
BOILERS
Designed to use exhaust gas (com a single engine Available in 11 basic variants, with tube bundles of different lengths.
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The exhaust gas boilers/economizers GN ECO have been studied to be installed in all types of industrial processes when discharging hot gasses in the atmosphere. Hot gasses, flowing through the GN ECO are used to heat another countercurrent fluids, achieving important energy savings while reducing operating costs.
Economizers can be built in different versions, as a function of the different utilities and the chemical composition of the gasses. They are available with finned pipe, seamless- or stainless steel pipe according to the specifications. Exhaust gas boilers are available in the following types:
- vertical and horizontal version
- with finned pipes
- with seamless pipes
- water tube type
- fire tube type
- with steel pipes
- with stainless steel pipes.
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UNEX™ P multi-function exhaust gas economizer is a water tube, forced circulation boiler for heat recovery of diesel engine exhaust gas.
The heat transfer surface consists of vertical, concentric, parallel steel tube coils connected to inlet and outlet manifold pipes.
The rounded shape of the gas-tight steel shell surrounding the tube coils is ideal to withstand exhaust gas pulsations from the engine.
Sound absorber and by-pass duct are located inside the tube coils. The sound absorption effect with basic construction is approx. 20 dB(A), but with an additional built-in sound absorber module, a maximum effect of 35 dB(A) can be achieved.
Vertical and straight exhaust gas passages between the tube rows - together with plain tube construction - decrease soot build-up on heating surfaces. This construction runs without problems even in the most demanding operation conditions.
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The MISSION™ XW is a water tube, forced circulation exhaust gas boiler/economizer. It is specially designed for heat recovery from diesel engine exhaust gas but the basic design suits numerous applications.
The heating surface is made of double gilled tubes with a spacing which minimizes soot build-up. It is supplied with an efficient cleaning system with steam or compressed air sootblowers.
A design with single gilled tubes is also available.
The economizer can be supplied with a dividing wall system for connection of several exhaust gas sources to one boiler.
The MISSION™ XW may be used in conjunction with an oil-fired auxiliary boiler or a separate steam drum, in both cases acting as a steam/water separator.
In connection with a thorough revision/ standardization of Aalborg Industries' marine boiler product range, the exhaust gas economizer previously referred to as AV-6N has been renamed to MISSION™ XW. The abbreviation refers to eXhaust gas Water tube boiler.
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The UNEX™ G exhaust gas economizer is a water tube, forced circulation economizer designed for heat recovery from diesel engine exhaust gas.
The heat transfer surface consists of horizontal finned (gilled) twin steel tubes preventing vibrations from gas pulsation. The heating surface is covered with gas-tight steel casing.
Special attention is paid to flexible construction. Each twin tube can expand freely in relation to the end plate and other tubes in order to minimize thermal stresses. The heat transfer surface is divided into vertical sections facilitating the tube repair work.
Economizers are arranged with horizontal spaces for steam sootblowers at certain intervals. Vertical and straight exhaust gas passage with adequate spacing between the fins decreases soot build-up on surfaces. The spacing is determined depending on the type of the engine and the required heat transfer surface area. The heating surface dimensions are laid out to maintain sufficient gas velocity giving the best self-cleaning effect within the design limits.
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Fire tube vertical boilers, composed by a flame and a recovery side to be installed on the exhaust gas plant. When the exhaust gas side is not enough, the flame side automatically turns on in order to integrate the lacking steam.
Realized in vertical version, takes up small space and are mainly studied for marine applications
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Heat recovery is an effective way to improve the efficiency of the plant and reduce operating costs.
In order to recover the heat contained in the waste gas coming from solid fuel firing systems, combustion engines, gas turbines, or other industrial processes, INTEC offers you first-class, tailor-made solutions for a wide variety of applications:
-Single-pass radiant heater consisting of helical coils for the recovery of radiant heat for high temperatures
-Convection heat exchanger with serpentine coils including soot blowers for
automatic cleaning of ash desposits from tube bundles while in operation
-Heater consisting of concentric coils for the heat recovery of waste gas heat from combustion engines and gas turbines in onshore and marine applications
Waste heat boiler with internal bypass, single pass arrangement with cleaning device for heating coils. Used for heat recovery of exhaust gases of combustion engines and gas turbines
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Combinded sections ( Exhaust Gas and Oil Fired)
Exhaust Gas Side : Water Tube Type
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Combinded sections ( Exhaust Gas and Oil Fired)
Exhaust Gas Side : Smoke Tube Type
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MATERIALS
In all models the boiler itself is built of boiler steel to DIN 17155 H2 while tubes is to DIN 17175 St.35.8.1.
1. Inspection cover
2. Hot-water coil
3. Outlet connection
4. Inlet connection
5. Drain/feed connection
6. Heating element conn.
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The basic model is designed for connection of one or two engines to the exhaust-gas section. The oil-fired section has a fully automatic burner and the boiler is fitted as standard with a hot water coil with a capacity of 25 Vmin.') Larger capacities on request.
Based on a boiler temp. of 85degC and h.w. temperature of 70degC.
Space required for removal of h.w.coil and heating element (if fitted) is approx. 600 mm.
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COMBI is a high quality composite boiler design offering the space-saving alternative of two boilers combined into one. COMBI is a combined oil and exhaust gas-fired boiler with a capacity range of up to 7t/h steam from the oil-fired section and up to 4t/h from the exhaust gas section. It is a standardized, preassembled boiler plant which is fast and easy to install.
Fire tube vertical boilers, composed by a flame and a recovery side to be installed on the exhaust gas plant. When the exhaust gas side is not enough, the flame side automatically turns on in order to integrate the lacking steam. Realized in vertical or horisontal version.
Combi has adequate space for inspection and maintenance in the steam/water space. The boiler can easily be water washed or mechanically cleaned. The smoke tubes are easy to clean.
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The oil-fired part of the AQ-10/16 is based on the AQ-12 bare tube design. It has a 100% water-cooled furnace without refractory.
The exhaust gas part of the AQ-10/16 is built up in smoke tubes based on the MISSION™ XS (ex-name AQ-2) design which is reliable and easy to maintain.
The AQ-10/16 has adequate room for inspection and maintenance in the steam/water space. The two smoke sides can be water-washed or mechanically cleaned through the boiler uptakes. The AQ-10/16 has a low space/performance ratio.
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MISSION™ OC is a high performance, combined oil and exhaust gas-fired boiler, with a 0.75-5 t/h capacity of the oil-fired section at 9 bar(g) design pressure.
MISSION™ OC is a vertical, cylindrical boiler with an exhaust gas section consisting of bare smoke tubes while the oil-fired section features pin tubes in the convection section.
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UNEX™ B consists of a large furnace welded to horizontal, plain type convection tubes. The low-alloyed plate material is durable against cracking, and it is easy to weld.
The UNEX™ B boilers have fully water-cooled furnaces and are constructed without refractory.
Adequate furnace dimensioning guarantees proper combustion, moderate loading and low material stresses. With an efficiency level at approx. 85%, the UNEX™ B has an economical operation and offers savings in fuel costs.
UNEX™ B boilers are easy to clean by using manual utensils.
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NPR are Garioni Navals type of high efficiency with reverse flame hot water boilers. All our NPR boilers have been designed to obtain a minimum efficiency of 91%.
Pressurized fire tube boilers for the production of hot water. Capacity from 64 up to 4.600 kW.
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The SUNROD™ CHS boiler for hot water has a unique pin tube extended heating surface. The vertical cylindrical body consists of a furnace and a convection part integrated with the drum.
The furnace consists of a gas tight membrane wall. A number of downcomer tubes connecting the drum to the ring header ensure good natural circulation at all loads through the furnace tubes.
The boiler is side-fired which makes the boiler very easy to ventilate and gives an operation and maintenance friendly location of the burner and its controls.
The incoming system water is mixed into the boiler drum by means of a spreader with nozzles. The hot water generation is practically instant from start. The response from load variation is very fast.
The boiler can be inspected on the water side through the manhole in the pressure vessel and through the hand holes in the ring header. On the gas side, the boiler can be inspected from the flue gas box at the top of the boiler and from the furnace.
The standard cleaning method is by water washing, which efficiently restores the original boiler performance data. After cleaning, it is possible to make a visual inspection of 100% of all the heating surfaces, a very important advantage when trying to reach highest possible efficiency during the boiler's entire lifetime.
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Our NPR Hot Water Boilers are low NOx reverse flame boilers with minimum guaranteed efficiency of 91%. The NPR is designed and manufactured in accordance with restrictive anti pollution regulations. Easy maintenance is ensured via completely hinged front door.
The NPR Hot water boilers can be delivered including electrical heating elements with various outputs and to the number requested. Necessary switches and automatic controls are fitted in same cabinet and enclosures as for the oil-fired burner.
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VERTICAL TWO PASSES STEAM AND PRESSURIZED WATER BOILERS
FOR MARINE APPLICATIONS, STEAM PRODUCTION UP TO 5 t/h.
High efficiency and low NOx.
Vertical steam boilers. Production from 300 up to 5.000 Kg/h.
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high efficiency, over 90%, two passes steam boilers with low NOx emission for steam production from 500 to 5000 kg/h and pressuried hot water from 200,000 to 3,000,000 kcal. Max working pressure up to 22 bar.
- vertical or horizontal execution
- Highest safety in working condition
- simple manangement
- strong construction and long reliability
- fully automatization
- Minimum space requirement
- maximum efficiency
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Design data
Steam capacity: 1,000-6,000 kg/h
Design pressure: up to 12 bar(g)
UNEX™ BH consists of a large furnace welded to horizontal, plain type convection tubes. The low-alloyed plate material is durable against cracking, and it is easy to weld.
The UNEX™ BH boilers have fully water-cooled furnaces and are constructed without refractory.
Adequate furnace dimensioning guarantees proper combustion, moderate loading and low material stresses. With an efficiency level of approx. 85%, the UNEX™ BH has an economical operation and offers savings in fuel costs.
UNEX™ BH boilers are easy to clean by manual utensils.
UNEX™ BH can operate as a steam drum for exhaust gas economizers. If the economizer capacity is high, the size of the boiler will be increased accordingly.
Capacity, Dimensions & Weight
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NG/C steam generators belong to the two smoke passes with dry back type. Studied to have a minimum efficiency of 90%. It's delivered complete with all regulation and safety devices. lt can use every kind of burner on market, to grant immediate after sales service in every town. Steam production from 300 up to 6.000 Kg/h. Pressure up to 18 bar. Completely automatic working, they include all accessoires.Manufactured following all international standards, checked with ultrasound and X ray on welding and sheets.
The ideal steam and superheated water generator for small and medium industry, studied to obtain maximum safety with the lowest investment. Boiler NG/C works with any kind of liquid or gaseous fuel.
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Marine Horizontal Boiler
Steam capacity : 2.0 ~ 6.0 ton
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The MISSION™ OS is supplied as a standard, preassembled boiler unit. High performance is ensured by the use of the optimally designed pin-tube elements.
These elements are also used for support of the top plates of the furnace and boiler. The inclined mounting of the burner provides good combustion with all grades.
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The oil-fired MISSION™ OS-TCi is supplied as a preassembled boiler unit with a user-friendly, integrated pressure atomizing burner and monitored with a MISSION™ Control Touch safety system.
The reliable, high efficiency boiler is designed to be self-cleaning to the highest possible degree and for easy and environmentally friendly maintenance.
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MISSION™ OM is a high performance medium capacity oil-fired auxiliary boiler with a capacity range from 8 to 45 t/h. MISSION™ OM is a vertical cylindrical boiler constructed from standard modules. The boiler is delivered as a pre-assembled unit, minimising installation and maintenance time.
The MISSION™ OM is easy to ventilate, and 100% visual inspection of membrane walls can be undertaken.
The steam generated is very dry as the smoke tubes pass through the furnace thus overheating the steam.
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The UNEX™ CHB boiler consists of a large furnace welded to vertical, plain-type convection tubes. The low-alloyed plate material is durable against cracking, and it is easy to weld.
CHB boilers with a steam capacity of up to 5 t/h have fully water-cooled furnaces. They are constructed without refractory.
The furnaces of boilers with larger capacities are welded using gas-tight membrane water tubes connected to the dome-shaped top of the furnace.
Adequate furnace dimensioning guarantees good combustion, moderate loading and low material stresses. With an efficiency level of approx. 85%, the CHB has an economical operation and offers savings in fuel costs.
Due to the standard built-in water washing device, the UNEX™ CHB boiler is easy to clean.
UNEX™ CHB can operate as a steam drum for an exhaust gas economizer. If the economizer capacity is high, the height of the boiler will be increased accordingly.
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Steam boilers, Hot water boilers for ships
