• Cooling Tower Alternative
• Closed Loop Cooling
• Limited Water Treatment
• Modular Design
• 25-500 Tons
• Minimize Water Use

Standard Cooling Towers…

Use water as the evaporative cooling source 12 months per year. In addition to the water cost, there are water treatment chemicals and sewage charges for the tower bleed-off.

Advantage Hydra Hybrid Fluid Coolers…

Use ambient air for the majority of the year to cool your process water. You save water, chemicals, and sewage charges while completely isolating your cooling water from the effects of solids build up on your plant heat exchange surfaces caused by the evaporation of make-up water.

How It Works

• Warm process fluid is circulated through the closed loop cooling coil of the Hydra Hybrid Cooler. Cool ambient air is drawn across the coil by the unit’s high efficiency direct drive fan/motor assembly drawing heat out of the process fluid and rejecting it to the surrounding air.
• The cooled process fluid is returned to the system reservoir to be circulated for the process cooling.
• When the ambient temperature is slightly below the desired process fluid temperature, the Hydra Hybrid Cooler operates in the dry mode using no fluid.
• When the ambient temperature rises above the desired process fluid temperature, the Hydra Hybrid Cooler automatically switches to its adiabatic pre-cooling mode.
• The adiabatic pre-cooling mode uses water to wet an evaporative media installed in the air inlet prior to the cooling coil. When the warm ambient air is drawn across the media it evaporates some of the water cooling the air before it reaches the coil containing the process water.
• In the adiabatic mode the Hydra Hybrid Cooler can maintain fluid temperatures low enough to provide hydraulic and condenser cooling even at ambient temperatures above 95F.
• When the ambient temperature drops the cooler automatically switches back to dry mode cooling to minimize water usage.
• When the adiabatic pre-cooling is not required the sump is drained to minimize potential contamination.
• The unit is designed to be installed outside, elevated above an indoor reservoir so that cooling coils and adiabatic sump drain by gravity when not in use.
• Each modular Hydra Hybrid Cooler includes a complete control system to optimize cooling and minimze water and electrical consumption.
• A custom computer program is available to predict normal maximum water temperatures and estimated annual water and electrical costs for your location.

Adiabatic Systems – Evaporative Media Compared to Misting Systems

• The Advantage Hydra Hybrid Cooler includes automatic adiabatic pre-cooling of the intake air when dry cooling alone can not maintain the process cooling fluid temperature. This system greatly enhances the cooler’s capacity with minimum water usage. The ambient air dry bulb temperature is reduced as the air passes through an efficient wetted evaporative media. The design cools the intake air without aerosol formation and without carry over on the dry coil.
• Water is evenly distributed over the evaporative media by the included low pressure sump pump. Some of the water is evaporated, while excess water assists in the rinsing the media to keep it free from the debris and minerals. The excess water is collected in the cooler’s sump and is recovered and recirculated so that the system uses the minimum amount of water.
• Unlike adiabatic coolers equipped with nozzle and spray systems, the Advantage adiabatic pre-cooler feature does not need high pressure pumps, always maintains a dry coil, provides stable and preditable capacity and requires far less maintenance. Spraying too much water is common in misting systems using more water then required and causing messy and wet areas around the cooler installation.
• Using wetted evaporative media compared to spray systems:

–No aerosol formation

– No risk of dispersion of contaminated droplets

– Water used usually comes from potable water source at temperatures where Legionella is dormant

• The evaporative media used in the Advantage adiabatic pre-cooler system is easy to replace and comes with a two-year replacement warranty.

High Volume Fan

The only moving part and it’s nearly maintenance free! Polypropylene air foil shaped fan blades are set at the factory to achieve optimum air flow. Totally Enclosed Fan Cooled (TEFC) motors are rated for outdoor and moist air extremes. The fan/motor assembly is supported by a stainless steel framework.

Stands

Stands are used to elevate the Hydra Hybrid Cooler when a remote above ground tank is used in the system. This stand requires only four steel posts, one at each corner. Build your own stand using drawings supplied by Advantage or purchase the stand from Advantage as a part of a complete system. Optional stand catwalks with railings and ladders are available.

High Efficiency Evaporative Media

When evaporative pre-cooling is required, a highly absorbent media is used. The honeycomb design provides a large wetted surface that is exposed to the entering air to provide maximum adiabatic effect to lower the incoming air temperature. 4″ or 6″ thick media is selected by our application specialist to provide the performance required based on your unique requirements. Excess water circulated through the media assists in rinsing it free from debris and minerals. The evaporative media is easy to replace and includes a two-year replacement warranty.

Engineering Design Service

Experienced water system designers analyze customer facility and process information to select the correct component combinations to provide the most efficient output. If one of our standard systems does not fit, then Advantage will design a custom system. All systems include water distribution drawings suitable for contractor bidding and installation work.

Pump Tank Systems

Advantage pump tank systems are used to support fluid coolers. Pump tank systems consist of a vented reservoir along with fluid pumps and controls specifically selected to meet the needs of your process and/or entire facility. The standard unit is designed to be installed indoors or protected from the elements.

Use of a pump tank assembly improves plant cooling effectiveness by providing a stable reserve of cooling fluid to moderate the affects of rapid load changes and to provide a place for air to separate from the system and for debris to settle out of the recirculating water flow. A pump tank also provides a convenient location to monitor water quality and introduce chemical treatment.

Experienced application specialists review each application to provide the proper fluid flow, pressure and temperature for each unique system. Every central water system includes water distribution piping drawings suitable for contractor bidding and installation work.

1-Pump Systems… circulate the cooling fluid to process then directly back through the chiller or cooling tower. Flow rate variation must be kept to a minimum with 1-pump systems. This system can be equipped with an optional standby pump. Full suction and discharge manifolds are included with the purchase of a standby pump.

2-Pump Systems… process flow rates often fluctuate and can be higher or lower than the cooling tower or chiller requires for optimum performance. 2-Pump systems are preferred for most applications because constant and optimum flow and pressure is maintained through the cooling tower or chiller regardless of the process flow. 2-Pump sytems can be equipped with an optional standby pump that can support either the process or recirculating pumps. Discrete standby pumps are also available as an option. Full suction and discharge manifolds are included with the purchase of a standby pump.

Other Products

Source: Advantage Engineering

Within this rugged industrial process a number of existing linear actuators were causing problems with maintenance and production in the flotation cell area, where the ore is mixed with water, chemicals and air to produce the 28% copper concentrate which then goes on to be smelted.

Rotork worked closely with Kennecott Copper and Industrial Solutions of Utah to successfully replace the problematic actuators with custom-designed Rotork linear pneumatic units, three of which are pictured here.

[article source]

Features

• Intrinsically safe
• UL Listed
• Input Voltage 16-30 VDC
• Reverse Polarity Protected
• Analog Voltage Output
• Short Circuit Protected
• Sync/Enable Input Line
• Various Sensing Ranges
• Wide Temperature Range
• Temperature Compensation
• LED Indicator
• Self-Contained Sensor
• PVC Housing
• Quick Disconnect Connector

The RPS-409A-IS is an intrinsically safe, analog ultrasonic sensor. It is self-contained sensor in a 30mm PVC barrel housing. It is powered by 16-30VDC with reverse polarity protection. 

The RPS-409A-IS has a short circuit protected analog 0-10VDC output.  The analog voltage  is a fixed  volts per  inch based on the maximum  range of the unit.  For example using the RPS-409A-80-IS, the output is a linear  0.125 volts per inch. A target  placed 10 inches from the sensor will result in an output signal of 1.25 volts or a target placed at 80 inches from the sensor will result in an output of 10 volts. 

The RPS-409A-IS has built-in temperature compensation to provide accurate readings throughout the entire operating temperature range. 

An LED indicator is provided. The LED is green when not detecting and changes to red when a target moves into place. The sensor  is completely sealed and the connection is made by way of IP and NEMA rated cables. 

Besides the input and output  lines there is a sync/enable line provided. This can be used for connecting  multiple  sensors together to prevent  cross talk, or to fire the sensor at a particular time. 

The RPS-409A-IS is designed to take advantage of today’s PLC and computer analog input cards. The numerical values that are programmed into PLC or computer will determine the zero and span. 

If a set point or set points are required in the application, please refer to the Migration SPC-701, SPC-704, or M-1000 control products. Both the SPC-704 and M-1000 can also provide excitation power to drive the sensor. 

Article by: