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careers category: R&D

Fluid Mechanics Research and Development Specialist

We are seeking a qualified R&D engineer with expertise in fluid mechanics, computational fluid dynamics (CFD), and combustion. As an ideal candidate, you should possess the following qualifications and attributes: Proven Research Excellence: A demonstrable track record of actively contributing to research projects in the fields of fluid mechanics and combustion, showcasing your deep knowledge […]

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PACKMAN Company was established in February, 1975. The company has started its activity in the field of producing High-Pressure Vessels such as Hot-Water Boilers, Steam Boilers, Pool Coil Tanks, Softeners and Heat Exchangers since 1984.

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MonoBlock Burner (MB Series)The burner works fully automatically, and does not require any permanent control. The connected regulation of heat output and low access of air during combustion ensure highly efficient operation. The burner is designed as a monoblock and thus the ventilator is a part of the burner’s main body.
Electrical Modular BurnersTechnical and Functional Features Highly efficient gas/oil burners for domestic and industrial application Compatible with all types of combustion chambers according to EN303 standard Designed for maximize efficiency and fuel cost savings Based on Iran national standard ISIRI-7595 and ISIRI 7594 (BS-EN676 and BS-EN267) for gas and oil fuel, respectively. Compact design with enclosed aluminum air housing High-quality with low-emissions combustion Sound proofing materials incorporated in the air suction circuit Full electronic modular operation with air/gas ratio control Ability of running with Variable Speed Drive (VSD) for reduction in noise level and increase the life expectancy of fan wheel motor. Ability of working with either of pressure based or Air/steam atomizers in dual fuel version. Ability of running with FGR technology for further reduction in NOx level (option) Light weight and optimized geometry Simple Installation, adjustment and maintenance Electrical Modular Operation Fossil fuel burners are often used as the principal medium for delivering energy to industrial furnaces and Boilers. Increasing focus on reducing energy costs has led manufacturers to concentrate on new burner design techniques and important advances in efficiency gains have been made over the years. As one of the most effective strategies are burner management and control systems.…
Dual Fuel BurnersElectrical Modular Monoblock Dual Fuel burner (RLGB-M Series) RLGB-M Series or RAADMAN Modulating dual fuel burners, covering a firing range from 700 to 17000 kW, are designed for a wide range of domestic and industrial applications. These Industrial burners have been tested and evaluated based on Iran national standard ISIRI-7595 (BS-EN 676) and ISIRI-7594 (BS-EN 267) for gas and oil operation respectively. According to performed experiments, the values of CO during low excess air operation is lower than 30 mg/kWh (in some cased very close to Zero). The precise design of their combustion head results a full gas-air mixture that guarantees high efficiency levels in all various applications. These Monoblock burners are equipped with LAMTEC and SIEMENS control system with capability of full air/gas ratio control throughout entire burner operating range as well as devices of well-known European companies such as Dungs, Kromschroder and Suntec. Burner superior design accompanied by high quality electronic devices have also resulted a further improvement in boiler’s performance in order to decrease fuel cost and emissions. RLGB-M Series Firing Ranges RLGB-M Series Technical Data N.G operation: Electrical Modular LFO operation: II or III Stage Electrical Full Modular Monoblock Dual Fuel Burner (RLGB-M/M Series) RLGB-M/M Series…
Gas BurnersElectrical Modular Monoblock Gas Burners (RGB-M Series) RGB-M Series or RAADMAN Electrical Modular Monoblock  gas burners, covering a firing range from 160 to 17000 kW, are designed for a wide range of domestic and industrial applications. All RAADMAN modular burners are equipped with LAMTEC or SIEMENS electronic control system with capability of full air/gas ratio control throughout entire burner operating range. These burners have been tested and evaluated based on Iran national standard ISIRI-7595 (BS-EN 676). According to performed experiments, the values of CO even in low excess air operation is lower than 30 mg/kWh (In some cases, values close to zero have also been reported). The precise design of combustion head results a full gas-air mixture that guarantees high efficiency levels in all various applications. Burner superior design accompanied by high quality electronic devices have also resulted a further improvement in boiler’s performance in order to decrease the fuel cost and emissions. Gas Burners (RGB-M Series) Firing Ranges RGB-M Series Technical Data N.G Operation: Electrical Modular Gas Train Diagram
GT1 (Pressure input
Multi Fuel Burners
Mechanical Modular Burners
Dual Fuel Burners
Gas Burners
Multi Fuel Burners
Mechanical Staging BurnersRaadman Mechanical Staging burners The mechanical staging burners by raadman have a firing range from 1000 to 6200 kW, and they are manufactured by high quality electro-mechanical accessories which are easy to install and commission. Thanks to the cam mechanism and butterfly valve, we have “Staging” operation in gas mode. In this type of burner, one actuator opens the damper and butterfly valve to reach the desired stages. The components of these burners are as follows: Mechanical components, burner head, flame tube, and cam mechanism, safety accessories, ignition devices, flame scanners, burner controllers such as Shokouh/Honeywell TMG or Siemens LFL, burner actuators, accessories of power system, ventilation motor, fan wheel, safety devices, and air pressure switches. Firing Rate
Fluid Mechanics Research and Development Specialist 4
RGB-MC Series
Fluid Mechanics Research and Development Specialist 3
RLGB-MC Series
Fluid Mechanics Research and Development Specialist 5
Specification Fuels Natural gas Light oil (viscosity < 6 cSt) Other types of fuels (such as heavy oil, LPG, etc.) requires written confirmation from the burner department of packman corporation (Raadman brand). Applications Raadman gas and dual fuel burners are suitable for the following utilization. Installation on heat exchanger Hot water boiler Steam boiler and high-pressure hot water boiler Hot air generator Compatible with all types of combustion chambers according…
Gas BurnersRGB-MS Series Raadman Burner Raadman mechanical staging gas burners have a firing range of 1000 to 6200 kW and are made with superior electro-mechanical components for easy installation and starting. Using the cam mechanism and butterfly valve, there will be a “Staging” operation in gas state. To reach the desired stages, one actuator opens the damper and butterfly valve in this burner type. This category of burners includes all mechanical components, burner head, cam mechanism, ignition devices, burner controllers such as Shokouh /Honeywell TMG or Siemens LFL, burner actuator, accessories of power system, ventilation motor, fan wheel, safety devices, and air pressure switches. Gas train includes filter, regulator, main and safety valves, pressure gauges, minimum pressure switch, leak test pressure switch, and valve proving system for burners with a capacity of over 1.2 MW (All according to BS-EN 676). Technical & Functional Features Lightweight and optimized geometry. High-quality heat-resistant steel material for all parts of burner head as well as flame covering accessories. air damper for air flow setting and butterfly valve for regulating gas output controlled by a servomotor with variable cam Mono-block design and fully enclosed aluminum air housing. Simple to install, adjust, and maintain. Easy access to internal components. Engineered to maximize…
Dual Fuel BurnersRLGB-MS Series Raadman Burner Raadman’s mechanical staging burners are made of high-quality electro-mechanical components that are simple to install and commission and have a firing range of 1000 to 6100 kW. The butterfly valve and cam mechanism allow for “Staging” operation on the gas mode. To achieve the desired stages in this type of burner, one actuator opens the butterfly valve and damper. This category of burners includes all mechanical components, burner head, flame tube, and cam mechanism, safety accessories, ignition devices, flame scanners, burner controllers such as Shokouh /Honeywell TMG or Siemens LFL, burner actuators, accessories of power system, ventilation motor, fan wheel, safety of Gas train includes filter, regulator, main and safety valves, pressure gauges, minimum pressure switch, leak test switch, and valve proving system for burners with a capacity of over than 1.2 MW (All according to BS-EN 676). Light oil system includes separate motor for oil pump, pump with pressure regulating valve, double main solenoid valve and one safety solenoid valve in feeding line, pressure gauge in feeding line, two nozzles for two stage operation (All according to BS-EN 267). Technical & Functional Features Lightweight and optimized geometry. High-quality heat-resistant steel material for all parts of burner head as well as…
Staging Burners
Dual Fuel Burners
Gas Burners
Multi Fuel Burners
Dual Block Burners (DB Series)
Electrical Modular Dual Fuel Burners
Electrical Modular Gas Burners
Electrical Modular Multi Fuel Burners
Premixed BurnersCondensing boilers are water heaters fueled by gas or oil. They achieve high efficiency (typically greater than 90% on the higher heating value) by condensing water vapour in the exhaust gases and so recovering its latent heat of vaporisation, which would otherwise have been wasted. n a conventional boiler, fuel is burned and the hot gases produced pass through a heat exchanger where much of their heat is transferred to water, thus raising the water’s temperature. One of the hot gases produced in the combustion process is water vapour (steam), which arises from burning the hydrogen content of the fuel. A condensing boiler extracts additional heat from the waste gases by condensing this water vapour to liquid water, thus recovering its latent heat of vaporization. A typical increase of efficiency can be as much as 10-12%.[citation needed] While the effectiveness of the condensing process varies depending on the temperature of the water returning to the boiler, it is always at least as efficient as a non-condensing boiler. (Read More)
PE Series
PM Series (Post Mixed Burners)
Furnace Burner
Fire Heater Burner
Water Tube BurnerWater Tube Boilers The ability of water tube boilers to be designed without the use of excessively large and thick-walled pressure vessels makes these boilers particularly attractive in applications that require dry, high-pressure, high-energy steam, including steam turbine power generation. Owing to their superb working properties, the use of water tube boilers is highly preferred in the following major areas: Variety of process applications in industries Chemical processing divisions Pulp and Paper manufacturing plants Refining units Power Plants Besides, they are frequently employed in power generation plants where large quantities of steam (ranging up to 500 kg/s) having high pressures i.e. approximately 16 megapascals (160 bar) and high temperatures reaching up to 550°C are generally required. A water tube boiler can be defined as a Steam boiler in which the flow of water in the tubes, as well as hot gases, enclose the tubes. Not like fire tube boilers, this boiler attains high-pressures, as well as high-steam capabilities, can be achieved. This is because of condensed tangential pressure on tubes which is known as hoop stress.
Multi Flame Burner
Single Flame Burner
Clean Combustion
Hydrogen Burners (H2 Ready)
Low NOx Burner
Burners Ventilation Systems (BVS-Series)
Backward Ventilation System
Forward Ventilation System
Heavy Oil Heater (OH Series)
Electrical Oil Heater
Steam Used Oil Heater
Burner Ventilation Motor Starter (RMS)Raadman burners ventilation motor starter raadman factory produces burners with firing range of 100 kW to 60000 kW. In burners with ventilation motor capacity of 22kW and above, the power circuit and control circuit need to be installed separately due to destructive effects of electrical noise that power circuit or high voltage has on the control devices. With Regard to this reason, raadman motor starter (RMS) in which the power circuit is embedded, is introduced by the means of this technical document.
Different starting methods Star-Delta (Picture 1): A star-delta starter is the most commonly used method for starting a three-phase induction motor. In star delta starting, an induction motor is connected via a star connection throughout the starting period. In order to use this starting method, the motor must be delta connected during a normal run. This starting system has some disadvantages that are mentioned below: -Overload current drawn from electric grid at the time of starting -Current and mechanical shocks at the load torque starting moment -Current and mechanical shocks to the motor at the moment of changing status from Star to Delta which reduces the motor useful lifespan -by increasing the current range, the contactors and bimetals sizes are increased Soft Starter…
Star delta
Variable Speed Drive
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