Dezumidifcatoare - De la dispozitive portabile la sisteme industriale DST

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Tip documentatie: Catalog, brosura

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World leaders in dehumidification. Dehumidifiers – From portable devices to industrial systems SEIBU GIKEN DST Seibu Giken DST AB was established 1985, in Sweden - DRY AIR SPECIALISTS Moisture is found everywhere. Air moisture is usually referred to as relative humidity (RH). The ”relative” in relative humidity expresses the relation between the amount of water vapour present and the amount that is physically possible at that temperature. In other words, relative humidity expressed as a percentage, is the ratio of the actual partial pressure exerted by water vapour in air to the maximum partial pressure that would be exerted by the water vapour if that air were saturated, at that temperature. Seibu Giken DST are experts in the field and provide dehumidifiers for all applications. DST dehumidifiers are characterised by their high reliability, low power consumption and service-friendly design. With our help problems that moisture can cause will be avoided. SILICA GEL ROTOR -

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THE HEART OF A DST DEHUMIDIFIER At the heart of every DST dehumidifier there is a D-MAX rotor from Seibu Giken Co. Japan. The first in the world to manufacture silica gel rotors, they remain the world leaders in this technology. The rotor is the most important single component in a desiccant dehumidifier. It is the rotor that determines the capacity, efficiency and lifetime of the dehumidification equipment. After 10 years of operation, the D-MAX rotor still retains more than 90% of its original capacity. Section of a D-MAX rotor from Seibu Giken Co. Due to the number of flutes in the rotor it adsorbs moisture with high efficiency. MOISTURE RELATED PROBLEMS - AND HOW DEHUMIDIFICATION PREVENTS THEM Condensation Mould Corrosion Bacteria Frost and ice fouling Product sticking No condensation droplets and subsequent problems with wet products, short circuits in control devices, repainting and puddles on the floor. Extend the lifetime of tools, machines and steel structures by pr

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otecting untreated steel against corrosion without painting or greasing. No ice fouling on products, floors and ceilings. Also, extended times between defrosting and thereby increased operating time of freezers. Mould and fungus formation is prevented if the surrounding air is kept below 70%RH. If the relative humidity is kept below 50%RH bacteria will not thrive. Moisture sensitive products do not stick together and problems with clogged pneumatic transport and lump formation in silos are removed. SORPTION DEHUMIDIFICATION - HOW DOES IT WORK? In sorption dehumidification, the basic principle is that a rotating rotor in the dehumidifier continuously adsorbs moisture from the process air. Then through a regeneration cycle the moisture is driven out of the rotor and exhausted in different ways, the principle pictures are demonstrating how. Incoming moist air Outgoing dry air Outgoing wet air, either passed or condensed out The Consorb principle is best used at lower regeneration

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temperatures, typically where waste heat is available or where the air inlet moisture content is very high. The Consorb principle is also used in balanced ‘closed’ type systems where the dry process air is recirculated. Aquasorb basically functions as a Consorb but moisture Recusorb DR has an internal heat recovery with one fan that produces both the dry airflow and the wet airflow. Used for introducing dry fresh air into a process or to an ‘open’ or ‘total loss’ system where the dehumidified air is ducted into the object. Can be used on both ‘open’ and ‘closed’ type systems. in the wet air is condensed through an air cooled condenser. One centrifugal fan is used for both the dry air and the condenser cooling air, so all energy released during the process accumulates in the room. Commonly used where it is impractical to use ducting for the reactivation air system. Recusorb R has an internal heat recovery to improve operating efficiency. Heat transferred to the r

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otor during regeneration is effectively recovered by the incoming regeneration air, thus reducing the amount of energy required by the regeneration heater. The process air outlet is both cooler and drier when compared to other desiccant dryers. Econosorb combines a heat pump with the sorption Frigosorb is used in applications where it is difficult to rotor in a unique way, providing very low energy consumption with a low dry air temperature. It’s probably the most energy efficient dehumidifier on the market, with approximately 25% of the total energy consumption of regular sorption dehumidifiers. Econosorb has both condensation and wet air flow. remove a wet air flow. Thanks to the heat pump function Frigosorb is very energy efficient, using approximately 33% of the total energy consumption of regular sorption dehumidifiers. DST DEHUMIDIFIERS Consorb CS Consorb Recusorb DR Consorb Aquasorb Recusorb DR CS-5/5L DC-5 DR-010B DC-10 AQ-30B/31B/31L DR-20B/30D 0.35 0.4 0

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.5 0.6 0.6 0.85 1.15 1.55 0.8 1.1 65 90 120 190 190 330 330 370 330 360 Consorb Recusorb DR Recusorb DR Consorb Recusorb DR Consorb DC-20/30 T10, T16 DR-31 T10 DR-40 T10, T16 DC-31 T10, T16 DR-50R DC-50R 1.1 1.3 1.5 1.6 1.6 2.3 1.4 2.1 2.8 3.0 310 400 400 310 600 550 300 490 600 550 Recusorb R Recusorb R Recusorb R Recusorb R Consorb RL-60/60LR R-51R/61R RL-61/61L RL-71/71LR RLZ-81/82/101/102/102L/104 CZ-82/102/102L/104 4 5 7.3 10 850 1000 1250 1450 7.5 8 11 11.5 13 14 17 1300 1600 1800 2100 2500 3000 3200 19 20 25 27 30.5 22 23 36 39 34 49.5 57 70 54 50 55 65 69 4500 4600 6000 3200 5200 7200 8000 2900 3500 7000 9000 10000 10500 12000 Consorb, Econosorb, Frigosob, Recusorb Flexisorb LARGER Capacity kg/h (20˚C/60%RH) Airflow m³/h 10000 12000 DEHUMIDIFIERS FOR INDUSTRIAL APPLICATIONS The Flexisorb dehumidifier system can be tailored to suit individual requirements. Everything fr

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om basic desiccant dehumidification to a complete climatic control system is offered. With total flexibility in design, these highly efficient industrial atmospheric air dryers are structured around the rotor to conform precisely to customers’ specifications. Dehumidification is the prime objective of Flexisorb, and whilst pre-cooling is often required, post cooling and post heating can also be included. The Flexisorb system offers one of the most versatile air drying systems available today. Rotor Heater Cooler Filter Fan Example of configuration for a Flexisorb A FLEXISORB’S QUALITIES All Flexisorb dehumidifiers are designed to be energy-efficient and environmentally friendly. Regeneration heaters are available for use with natural gas, LPG, steam, hot water and electric - or a combination of two. Flexisorb units are constructed with an anodized aluminium frame and a smooth interior that makes it easy to wash to maintain good hygiene levels. Stainless steel panels are available

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as options for dehumidification in demanding environments. In the Flexisorb dehumidifiers the Consorb, Econosorb, Frigosorb or Recusorb principles can be used. HUMIDITY AND TEMPERATURE CONTROL Humidistat and controller EH3 T2 Humidistat EH4 PLC C4 with 5.7” graphic touch display. Advanced PLC control with large expansion options DST can deliver dehumidifiers with complete control systems for both humidity and temperature control. By having integrated control of the output temperature, the total energy consumption is reduced in the air handling process. This is due in part to the optimized controls that regulate the dehumidification process and temperature requirements and in part by setting the right configuration and using fresh air and exhaust air to suit each case. PLC C4 is used for advanced control of our larger dehumidifiers. The features are tailored to fit the customers’ requirements and can be set to communicate with higher-level systems with Modbus. There is also