A domestic knowledge-based company has successfully developed a high-speed, high-pressure centrifugal compressor, which has many advantages compared to older models.
“The equipment is used in the oil and gas industry to compress condensates and gas. In some machines, air is compressed and sent to the combustion chamber,” Alireza Nasseri, a member of the board of directors of Kavosh Sanat Toos Company, said.
As a great deal of mechanical energy is expended, the temperature of the compressed gas also rises. High-pressure gas from the compressors is then passed through a cooling system to lower temperature, the Vice-Presidency for Science and Technology reported.
One of the features of a centrifugal compressor is its radial thrust flow. The air enters the center of the rotating impeller using radial vanes and is expelled by centrifugal forces to the rotating impeller. Before air is pushed to the center of the next rotating impeller, it passes through a diffuser and a coil chamber, in which the kinetic energy is converted to static pressure.
The official noted that by achieving capacities as high as 35,000 kW, temporary loads applied to the cycle show higher efficiency and uniform gas movement reduces noise and vibration, which are among the advantages of this device.
High-speed centrifugal compressors are also ideal for industries that require a constant application of high-volume pressure.
“This compressor is lighter and has a more compact structure compared to other counterparts. It is more energy efficient and has low maintenance cost because of using fewer parts,” Nasseri said, while stressing that the machine supplies 100% oil-free air and exhibits high resistance to dust.
The new compressor is able to work with a wide range of compressible fluids such as helium, xenon, oxygen and liquid nitrogen.
“Supporting knowledge-based companies can clearly play a significant role in saving foreign currency and generating employment. The production of high-speed, high-pressure centrifugal compressors has prevented unnecessary imports," he said.
Nasseri noted that promoting knowledge-based products and creating jobs are some of the most important achievements of this enterprise.
High Efficiency Molding Machine
A domestic knowledge-based company has recently unveiled a rotational molding machine used in the production of plastic bottle caps needed by different industries.
The second-generation rotational molding machine produces all types and sizes of caps for carbonated soft drink and mineral water bottles.
Hossein Ebrahimpour, a member of the board of directors of Pars Machinery Company, noted that this machine is used for continuous molding and compression.
The machine produces premium quality plastic bottle caps by using polypropylene and polyethylene resin materials.
The domestically-built machine is fully automatic and has an efficiency higher than that of traditional counterparts, in addition to low material consumption and time and energy savings. It is completely computer controlled and has excellent stability and durability.
Ebrahimpour explained that the production of this low-cost machine has prevented a large outflow of foreign currency and unnecessary imports.
Caps made by this machine have high precision, a smooth and beautiful appearance and without an injection point.
Compared to traditional counterparts, this machine’s threefold output and low waste are among its other advantages. It has a comparatively smaller size and requires fewer manpower.
In case of special requests by customers for printing signs and logos, it can be achieved with low cost.
Hydraulic rotary presses are specially designed for the production of thermoplastic products using compression. More than 45% of plastic beverage lids are produced by pressing and compression.
Most plastic bottle caps are manufactured through a process known as injection molding. In this process, thermoplastic polymer pellets are heated in a metal hopper to the point that they become soft and flexible.
Domestic Machine Competitive
A knowledge-based company has succeeded in manufacturing a machine that can simultaneously undertake milling and turning, and rival foreign counterparts.
“The machine has many applications in various industries,” Mohammad Hossein Amani, CEO of Mobtakeran Sanat Rash Machine-Building Company, said, noting that the Computer Numerical Control milling and turning machine has six axes.
The precise cutting machine, which has been patented, is controlled by a preprogrammed computer software that handles its tools functions.
The eight-head CNC milling and turning machine is used in many industries, including wood, sculpture, statuary, modeling and molding, as well as masonry.
The foreign model of this device is made only for metals and are very expensive compared to the domestic model, so its use in the wood and stone industries is not affordable.
The high quality, lower price and its ability to work on eight pieces simultaneously make the domestic product competitive.
