Electricity and Control May 2021

DRIVES, MOTORS + SWITCHGEAR : PRODUCTS + SERVICES

Reliable drives in harsh environments

New resources, compounds and any number of active ingredients are being developed continually to meet the ever-growing demand of industries and for various uses in everyday life. Using the best available technologies is standard practice for chemical reactors, distillation, precipitation, drying, milling, granulation, hot melt extrusion and associated processes in harsh industrial environments. The specifications for refrigeration and control in chemical and pharmaceutical production processes for instance, are rigid. Only approved products for certain pressure ranges and harsh environments can be used. In such applications, the demand for Danfoss quality products and expertise has continued through the years. Danfoss drives ensure high levels of reliability and safety, a long service life, high performance and energy efficiency. Efficient supply, refining and transportation of valuable raw materials kept at accurate temperature levels can be achieved with refrigeration solutions from Danfoss. And, with regard to the available technology for ac motors, industry recognises the benefits of speed control using ac drives. Danfoss offers the market its wide-ranging experience in refrigeration and in controlling the speed of ac motors in all main chemicals sectors, including petrochemicals, basic inorganics, polymers, speciality chemicals and others. Its refrigeration equipment and ac drives are designed to meet the demands of the chemical industry where safety is the highest priority. Optimised processes, less downtime Process-control improvements with speed control of motors and proven energy savings in various applications have increased the output and reliability of processes and reduced carbon emissions. The high protection class and conformal coating of printed circuit boards in Danfoss ac drives enhance protection against environmental pollution, aggressive gases, moisture and dust. The drives also reduce heat loads and air-conditioning requirements with efficient heat management. This results in increased drive lifetime, reduced maintenance, reliable operation in harsh environments, less downtime and a lower cost of ownership. Quality chemical plants powered by quality drives For a chemical plant to run at optimum performance levels, it needs drives to support that. Designed with decades of industry expertise, Danfoss ac drives deliver best-in-class reliability and robustness. Leading energy efficiency levels lower total cost of ownership and make a positive contribution to reaching the world’s climate goals. Further, predictive and condition-based monitoring are built into the drives to give users the intelligence needed for maintenance support. The

Danfoss drives product line is fully compatible with any motor or system, so users can select the optimum system for their plants. Reliability and robustness Aggressive gases can damage components at a chemical plant, while cooling air contamination can cause PCB tracks and door seals to decompose. Knowing the drives are reliable and durable enough to handle the rigours of chemical production is important. Danfoss drives have, as a minimum, conformal coated circuit boards as standard, with the option of a reinforced conformal coating, high IP ratings, are ATEX compliant and can withstand high ambient temperatures of up to 50°C. All Danfoss drives offer simple and cost-efficient solutions and can be used with 150 m shielded or 300 m unshielded cable starting from 1.5 kW, without any additional output filters for motor connections. This saves on initial investment, eliminates additional space requirements, lowers total losses in the system and provides full output torque on the motor shaft by avoiding voltage drop over the filter. Energy efficiency Danfoss ac drives are highly energy-efficient, helping increase plant ROI and reduce total cost of ownership. Back channel cooling reduces the need for air conditioning, and smart tools reduce energy use and application wear. Higher power density also means users no longer need to go for oversized drives and this too lowers energy usage. Danfoss drives are widely used in chemical and petrochemical industries.

For more information contact Danfoss. Email: mccarthyl@danfoss.com Visit: www.danfoss.com

Electricity + Control MAY 2021

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