Mellcon Engineers Pvt. Ltd. Okhla, Delhi

The wet Air / Gas stream is split at the air dryer inlet through a differential distributor valve. Part of this air / gas stream is passed through an external heater and heated to a regeneration temperature of 160-180°C, then it is fed to the Adsorber desiccant tower A containing Silica gel or activated Alumina / Molecular Sieves under regeneration thus removing out the moisture from the desiccant bed. A water cooled / air cooled aftercooler condenses the desorbed moisture which is discharged regularly through the automatic drain trap . after condensation This Air/ Gas stream joins the main incoming air stream and goes for drying to the other tower B under drying. Normally a Cycle time of 8+8 hrs is utilized to complete one cycle of operation. After each operation the changeover is effected automatically. This type of dryer provides an outlet Dew Point of -40 deg C. The Air dryer can be supplied with standard accessarie like simplex / duplex Prefilters / Afterfilters, Flowmeters, dew point meters etc. The system is fully automatic / semi automatic , with Timer / PLC controls with feedbeck to/ from main DCS.   - Instrument air dryers for power plants Refineries & Petrochemicals , chemical & fertilizer plantsetc. - CNG Compressed Natural Gas Drying & conditioning plants , Gas Drayers. - Hydrogen Gas Drier for generator Cooling Application.

Mellcon offers fully automatic and effective ready to use effecient refrigerant recovery system with power range from 120 watts to 1200 watts. It has a volumetric capacity range from 4-6KG/HR to 40-45KG/HR. To start the unit connect the service hose to the lower side of the refrigeration system and press the start button. The unit will start operating and the refrigerant gas gets extracted and distilled. It will turn off automatically after all the gas is removed. It will pull a 10 degree vacuum and if a positive pressure is sensed the unit will start automatically. The recovery system is equipped with unique features that includes:- The heavy-duty compressor with service fittings Suction and delivery gauges and temperature cut off circuits to assure the safety of the equipment. An hour meter for determining when the maintenance is required. Control panel to monitor the automatic operation.

A refrigerated air dryer is the most commonly used. type of compressed air dryer / Gas Dryer for most plant applications for the drying of plant air and other utility gases like Seal gas , hydrogen gas for generator cooling , nitrogen Gas drying etc. where a dew point of (+2) Deg. C. at line pressure i.e. (-22 )Deg. C. at atmospheric pressure) is an acceptable norm. This Type of dryer finds application in Fly ash conveying , Seal gas Drying . General plant air , hydrogen gas dryer used in generator cooling application & Pneumatic tools operation. As much as 2300 gallons of moisture can be removed from a100 cfm pneumatic system operating at 100 psi in 12 months of 3 shift operation, moisture which without a refrigerant air dryer, would have passed through the delicate pneumatic equipments & instruments

Pressure Regulating Station For CO2 Tank:- All High pressure Gas Storage Systems like CO2, LPG , N2O  etc. applications require the use of a Pressure reducing station to supply constant pressure to applications. Because pressure in Storage  tanks can fluctuate significantly, regulators must be present to deliver a steady  pressure to downstream appliances. These regulators normally compensate for tank pressures between 1.8 – 12 bar for industrial applications. Propane regulators differ in size and shape, delivery pressure and adjust-ability but are uniform in their purpose to deliver a constant outlet pressure for downstream requirements. As is the case in all regulators, outlet pressure is lower than inlet pressure. Parameters Required : Inlet Pressure In Bar (G) Outlet Pressure In Bar (G) Temperature in Deg C Existing Pipesize in mm Applications : Liquid Carbon dioxide Storage systems LPG storage Systems N2 storage systems Ammonia Storage systems etc.

MELLCON offers packaged Dry Air Generator Plant in which complete assembly is mounted on a common skid. Assembly includes Air Compressor, After Cooler, Air Receiver and Heatless Air Dryer. The system is ready to install type just requiring power connection, water connection and air inlet/outlet connection. Standard Packaged Dry Air generator Plants are offered upto a capacity of 150CFM.and a pressure of 7- 15 kg/cm2 The Heatless type dry air generator is suitable for supplying dry air at site and is able to continuously operate without manual assistance by automatic recycling of air drying and regeneration of absorbent. .The basic scheme of the system is shown below:- Air Compressor compresses the atmospheric air thereby raising its temperature & humidity. This hot air is cooled in Water Cooled After Cooler to a temperature of 400 C and in the process moisture condenses & drained out. This air is stored in air receiver and then passes through the Air Dryer where air is dried to a a desired Dew Point. This fully dry air is sent for the pneumatic/process application . The applications include dehydration of high voltage transformers onsite during commissioning & maintenance etc.

PSA Nitrogen (N2) Gas Generator plant is an Inertisation Gas Atmosphere Generator ... enabling a permanent source of onsite NITROGEN Gas , with minimum energy consumption. PSA Nitrogen ( N2 ) Gas Generator Equipment is an Inert Gas Atmosphere Generator & incorporates Two sets of columns filled with Carbon Molecular Sieves CMS. Under Pressure these columns retain all Active Molecules compounds present in air like (Oxygen, Carbon Dioxide and Water) with the exception of the inert gases like Nitrogen & Argon.. The N2 Gas can be produced onsite for direct use or can be stored in Nitrogen storage tanks / Cylinders for intermittent use. (Nitrogen and Argon) This process is referred as PSA (Pressure Swing Adsorption).   TECHNOLOGY SUPPORT – KURARAY CHEMICAL CO. LTD ( JAPAN) Mellcon Engineers offers PSA Nitrogen Gas Generators in Technical support from Kuraray Chemicals Co Ltd (Japan).   Kuraray have been in business of producing Activated Carbon from 1965.

The Mould Dryers “MD-35kw / MD-70Kw” is a compact, electric heated for drying of water- or alcohol based coating of resin, betonies or cement sand forms and cores. ACCESSORIES FOR OUR MOULD DRYERS MD-35KW / MD-70KW Distribution box with two/four outlets, end welding flanges suitable for fixing hose with clips.   DESCRIPTION AND OPERATION: The mould Dryer “MD-35KW / MD-70KW was developed to save energy . Hot air with a adjustable outlet temperature between 60 and 300 Degree C to the assembled mould after all openings (feeders and gating system) are covered. The hot air escapes through the sand of the mould and the core and dries the coating. Besides, the surface of the mould hollow cavity is steadily warm up. Because the outlet temperature of the hot air maximum 300 Deg C can amount, no crystal water from the cement sand binding agent can be removed, but the coating will be to the same temperature as temperature of the sand surface.

Mellcon Engineers are the manufacturers of complete range of Liquid Dryers, solvent dryers dehydration equipments & dehydrators Designed for removal of dissolved water from a variety of liquids critical to Industry. These dryer are designed for a continuous duty like Twin tower liquid dryer system or single tower liquid dryer system for batch operation i.e. Desiccant systems for liquid dehydration have two basic cycles:- Drying- The removal of dissolved water from liquids is accomplished by passage of the wet liquid through a freshly reactivated packed column of granular desiccant material like silica gel, activated alumina or molecular sieves. Continuous operation is accomplished by the use of dual adsorbers, with one tower on the process stream while the other is being reactivated. Reactivation- Reactivation is accomplished in the following steps: Drain the tower of liquid product Heat the desiccant to release water. Remove released water from the tower. Cool and refill.

This dryer provides an efficient, economical and easy to maintain method of drying compressed air and gases. The drying medium (Silica gel or Activated Alumina) is contained in two carbon steel pressure vessels. While chamber I is drying, air is passed over an electrical heater embedded in chamber II and carries out the desorbed moisture of this chamber. This type of system utilizes about 2-3% of the gas as a purge. It is an ideal system for gases requiring ultra low drying like dew points upto (-80°C). Each column remains in line for about 6 hours. For regeneration, the desiccant is heated for about 3 hours and then cooled for another 3 hours before changeover. The operation is fully automatic.

Mellcon Engineers offer quality Hydrogen Gas Dryers to ensure low humidity levels continuously inside the Generators in Power Plants. Manufactured from the premium quality raw materials our Hydrogen Gas Dryers are highly durable and reliable. Hydrogen Gas Dryers provided by us are highly efficient, thus needs less energy and provides excellent performance. Hydrogen Gas Dryer is easy to use and install. Hydrogen Gas Dryer (Refrigerated Type)(Moisture Upto -20 Deg.C ADP) Capacity 40Nm3/Hr to 60 Nm3/Hr Op. Pressure 3.5 kg/cm2g to 7.0 Kg/cm2g Operation The system comprises two heat exchangers, the hydrogen shell and tube type called pre-cooler in which temperature of hydrogen reduces around 25-30 (Deg C. ).   The cooled hydrogen now enters the second heat exchanger named evaporator, further cooling upto 0-3 (Deg.C) is accomplished in this hence the set dew point is adjustable. The cooling coil inside the evaporator have propelled through a refrigeration system due to low temperature in the evaporator. The moisture in the hydrogen condences and converts in water form. The water is collected in a well protected condensate collector and can be drained out when desired leaving the evaporator. Hydrogen again travels to pre-cooler where it has dual function of cooling and outgoing leaving dry hydrogen again rises to a safe temperature Hydrogen of around 25-40 (Deg C.)

Mellcon Engineers are specialized manufacturers of Industrial Hot Air Blowers & Air Heaters equipments for Bus Ducts dehydration & moisture removal technology during long shut down periods. We have supplied large number of Hot Air Blowing Equipments to various projects e.g. Neyveli Lignite Corporation, NALCO Angul, GMDC Ahmedabad, NTPC Rihand, Panipat Thermal Project, DVC Mejia, Pendent Cement Bhutan etc. Inspection was carried by leading consultants like MECON, M.N Dastur, DCL, Desein, Tata Projects etc. Mellcon make Hot Air blowing Heaters are equipped with Digital Temperature Indicating Controller (TIC), Blind Temperature Controller (BTC). TIC and BTC are having individual set points, by which the temperature of the Air Heater can be controlled. Set temperature of TIC is at outlet temperature can b maintained as required, So that this will maintain the temperature of heater at this temperature by energizing & de energizing the Heater according to the temperature. BTC which is provided as extra safety device is set at 10 degree C above desired outlet temperature.This will cut off the heater if the temperature increases more than its set temperature and alert the operator by an audio alarm so that the temperature will not increase beyond control.

Mellcon Engineers are the manufacturers of complete range of Heatless Compressed Air Dryer system (drier) and gas dryer system,These Compressed gas and air dryers (driers) find use in majority of Industrial compressed air system and applications. These air and gas dryer (drier) are also offered for High Pressure gas and air drying system and applications. Following is a brief description of the working of these compressed air dryer and gas dryer systems. Heatless compressed air dryer (drier) is the simplest form of dessicant type gas or air dryer (drier) for achieving a dew point of -40°C for compressed air systems and other gas and air dryer (drier) applications . Process- Wet incoming Compressed air after passing through prefilter passes through the slide piston valve assembly and is directed towards chamber I where the compressed air passes upward through the desiccant bed (Activated Alumina or Molecular Sieves ). Compressed Air drying takes place by adsorption. Dry Compressed air from chamber I then passes through the Check valve assembly and then through the after-filter to the application or work area. While Compressed air is drying in chamber I the dessiccant in chamber II where the desiccant has been wetted in the previous cycle is being simultaneously regenerated. The chamber II is depressurised to atmosphere through the purge valve in the downward direction. A portion of the dry compressed air passes through the needle valve / orifice plate through the desiccant and flushes out the desorbed moisture. When the regeneration is complete, the purge valve is closed and the tower is slowly repressurised to line pressure for a smooth changeover. A drying period of 5 minutes provides an efficient dew point of -40°C or better (at atmospheric pressure ). In regeneration process approximately 60 seconds are required for repressurisation.      

Mellcon dew Point Apparatus is the most economical, simple, errorless system for the spot checking of Dew Point temperature of any compressed Air / Gases. This consists of a closed cylindrical glass with two chrome Plated tubes, a low range thermometer (-50+40 Deg.C) and a dry Ice Maker. Air / Gas enters to cylindrical glass through one chrome Plated tube and Exhausts. The other chrome plated tube is centrally placed in the cylindrical glass and thermometer is placed in it. Make dry ice (Solid C02 ) with the help of dry ice maker & a CO2 Gas cylinder. Pour some ether / acetone in the chrome plated tube having thermometer, And slowly put dry ice pieces into this liquid to reduce the wall temperature of the chrome plated tube. At a particular temperature the dew / frost will start forming on the walls of the tube and the same temperature can be noted from the thermometer. This is the dew Point temperature of that particular Air / Gas.

Condition : New

Brand Name : Mellcon

This Air dryer is similar to the Internal Heater type air dryer except that no process air is wasted. For regeneration of the Desicant bed , a blower provides the atmospheric air which is pre-heated in an external heater upto 160 deg C, to regenerate the desiccant bed. Therefore no process air is used for regeneration. The unit is fully automatic / semi-automatic . The desiccant used is normally Silica gel or Activated alumina.  

MELLCON Engineers INDIA offer compressed Air Receivers & Compressed air gas storage tanks having volumetric capacity range from 300 Ltrs to 50,000 Ltrs, Fabricated as per IS-2825 / ASME SEC-VIII, DIV-1 codes and MOC as SS-304 / IS-2062 / IS-2002 as material of construction. All Compressed air tanks are stage wise inspected as per relevant code requirement. The small capacity air receivers can be supplied upto a working pressures of 40 kg/Cm2 g and are provided with all necessary fittings and accessories like inlets/ outlet nozzles per ANSI - B16.5, Pr. Gauges. Safety Valves and Auto / Manual Drain Cocks. etc. The Air Receivers can be supplied under any third party / CCE inspection agency according to customer specific requirements. Applications - Utility Air Receivers - Starter Air Receivers for Engine Room

Welcome to MELLCON ENGINEERS - The premier industrial resource for energy efficient & environment friendly air cooled & water cooled Chillers & chilling Plants. We supply a broad range of Water/Oil chillers & chilling machines including standard package Water/Oil chillers, refrigeration cooled and portable Water/Oil chillers. industrial chillers, as well as custom and temperature controlled Water chillers for Concrete batching Plants etc Should you do a cost analysis, you would be pleasantly surprised to realize how quickly a chiller ends up paying for itself and then saving you money from there on out, for years to come. Mellcon Engineers New Delhi are the manufacturers of indusrial energy efficient aircooled Water/Oil chiller plants and Water/Oil chilling plants ranging from 1 TR. to 60 TR (3.5KW to 210 KW) . nominal cooling capacity for industrial applications like laser chiller, medical chillers ,process chiller, machine cooling, aquarium chiller etc. Mellcon range of Air Cooled recirculating Water chiller system represents the ideal solution for the Water/Oil cooling of Industrial process Water chiller Systems & designed to facilitate quick installation for all packaged chilled Water/Oil system requirements.   INCREASED PRODUCTION The speed and accuracy of production will increase as you maintain a constant and proper cooling temperature in your equipment. A chiller will reduce the number of rejected parts while increasing the number of parts produced per hour. You may ask yourself: "Does my equipment shut down during summer months?" -- "Are there periods where our rejection rate increases?" A COOLING TOWER may provide adequate cooling during winter months, but fail during the hotter periods of the year. A Water/Oil chiller will immediately eliminate this problem. Why A Chiller? for Equipment Protection -The most compelling reason for a chiller is the protection it provides to your valuable process equipment-- such as laser machines, spot welders, injection molding equipment, and other applications. A chiller commonly represents a small fraction of the cost of the processing equipment, yet it provides solid protection of your investment, 24 hours a day, 7 days a week for years and years to come. Sizing A Chiller Correctly - Calculate Cooling Load Of Water Chiller - How To Size Chillers Simple instructions to Assure Proper Cooling The importance of selecting a correctly sized Water chiller cannot be downplayed. An undersized Water chiller will always be a problem-- never able to properly cool the process equipment. An oversize chiller will never be able to run at it's most efficient level. Specify the correct size chiller and enjoy years of continuous, efficient service. If you would like help, feel free to give us a call. We do this all the time. To size a Water chiller properly you first need to calculate the delta T ( deg C)between the inlet and outlet water (the change in temperature), and the rate of flow in liters per minute (LPM). Measuring the delta T requires a thermocouple or thermometer. Check the water temperature of the water inlet line and the water outlet line, and subtract the numbers to compute how much heat the equipment is adding to the water. To measure the flow rate of the water place a flow meter on the outlet line of your equipment. If one is not available, simply measure the time it takes for the outlet flow to fill a twenty Litre bucket, and then compute your Litre per minute (LPM) of flow. Now that you have these two figures you need to calculate how many kcals (kilo calories of heat Units) your equipment dissipates. Here is the formula: # kcals/ hour = (the weight of water) LPM x Temperature Difference (delta T) Repeat this for all the equipment you have, and add up the total kcals. Now that you have the kcals, lets compute the total Tons of cooling you need from a chiller. 1 Ton of cooling is 3000 kcals/hour so... # Tons = (kcals/hr) / (3,000) This is the minimum size unit you should need.please keep another 25-30 % margin for There may be other circumstances, like planning for expansion, that would lead you to buy a different size unit. For more information about the specific units, please contact us Mellcon range of Water/Oil cooled Water chiller represents the ideal solution for the Water/Oil cooling of Industrial process Water Systems & designed to facilitate quick installation. We also offer Water/Oil cooled chilled Water/Oil plants in sizes ranging from 5-Tr to 150 -Tr . These Water chillers system find application in brine chilling, glycol chiller applications for low temperatures. Also centralised Chilled Water/Oil plants. Mellcon range of Aircooled recirculating Water chiller system represents the ideal solution for the Water/Oil cooling of Industrial process Water chiller Systems & designed to facilitate quick installation for all packaged chilled Water/Oil system requirements .   Salient Features Of Process Water Chiller Compact skid mounted Water chillers system, ready to install. Water Chillers are fully automatic with tried & tested controls. Quick chilling is ensured with plate type PHE or shell and tube Heat exchagers / evaporators. Our Water chillers use energy saving with cycling fans and high efficiency fin tube aircooled condensers with liberal sized fans All Water Chillers are Load tested as per ASHRAE standards before despatch. Water Chillers offer Guaranteed cooling capacity at rated parameters. Specific design to meet customer requirement for temperatures upto ( -40 deg c) also available in addition to standard models. Applications Of Industrial Air Cooled Water Chiller Chemical / Pharmaceutical process Water/Oil chilling. Plastic Process chiller for : Injection Molding, Blow Molding, ( Mould Chiller ) etc.Extruders, PVC Pipes, Woven Sacks, PP Film Lamination etc. Calendars ( Plastic & Rubber ) Water Chiller. Milk and Dairy / Pasteurising , Food Products. Lubricants / hydraulic Oil Cooling and Dewaxing of Oils Plating, Anodizing and Induction heat treatment Water/Oil chiller Pulp and Paper Processing. Printing Ink / Paper Waxing cooling. Bleaching / Dyeing Industry Water/Oil chiller EDM Machine cooling. Concrete curing Glazing in Concrete Batching Plants Comfort cooling. Laser cooling Process Water/Oil chilling . The Fine Quality Component Features Hermetic / Semi hermetic sealed / screw compressors with internal over load protection. Air cooled condenser with copper tubes and Aluminum fins. Plate type / shell and tube evaporator for high efficiency. Stainless Steel storage tank with external insulation to prevent moisture ingress and condensation. Refrigerant circuit consists of reputed filter dryer, thermostatic expansion valve / capillary, sight glass, accumulator. and other controls from Danfos /Sporlan / Alco Controls with safety devices - high and low refrigerant switches, low water level, flow switch. All Refrigerant tubing is high grade copper. Digital temperature indicator controller for precise temperature controlling. Audio visual indication for controls and safeties. Pumps suitable for high flow and pressure. Trolley mounting- optional.

We are offering compressed air gas dryers, air receivers, heat exchangers.

We are offering water chiller, water brine oil chillers.

We are offering psa nitro gas generators.

Compessed Air/Gas Dryers, Air/Gas Receivers

Water/Brine/Oil Chillers

We offer CO2/LPG Storage System. CO2LPG Storage Systems, Tanks

Small/Medium Cold Rooms