Water Cooling Tower Model ST

Water Cooling Tower Model ST

The ST series cooling towers are the best engineering arrangement for towers from 3m3/h capacity up to 100 m3/h capacity per cell.

They are the result of decades of development, since the 1960s, with more than 20,000 units installed. The ST series cooling towers are of the monoblock type, without dimensions and built-in fiberglass (fiberglass reinforced polyester) and internal in engineering plastics. A smarter solution for your industrial process, with great longevity and low maintenance.

The evaporative cooling system applied is counter-current. Atmospheric air is drawn in through suitable windows, installed at the base of the cooling tower, and forced against the current, the water to be cooled, which has been injected, hot, at the top of the cooling tower. After this process, the water is collected in the pool and pumped back to the equipment to be cooled, closing the circuit.

ST cooling towers are the smartest way to cool your process. For capacities from 3m3/h up to 100m3/h per cell.

Working principle of the Cooling Tower

Cooling Tower Model ST Operation

Hot water from the heat source is pumped to the top of the tower, where it is evenly distributed over the fill by spray nozzles. The water to be cooled comes into contact with air drawn in or blown in by the fan. A small portion of the water evaporates, causing it to cool down. In this process, the saturated air is discharged into the atmosphere and the cooled water is collected in the equipment's pool and pumped to the heat source, repeating the process.

Application areas of the ST Cooling Tower

Water Cooling Tower Model ST

Commercial HVAC (Heating Ventilation and Air Conditioning)

Best equipment for your comfort air conditioning installation, with economical solutions and low maintenance cost.

Caravela-Thermotank's technical staff seeks to achieve excellence in the construction and performance of cooling towers. The result, for installations from 5 TR to 147 TR per cell, is ST series tower. The solution was to create a cooling tower that was fast to manufacture and of enviable quality. ST cooling towers have no joints in their structure, which prevents leaks. The unique construction of ST cooling towers allows up to 60% shorter lead times due to prefabricated components and up to 80% field installation compared to field-mounted towers.

Applications in HVAC or cooling processes

Compared to other cooling towers, the ST series offers unparalleled advantages.

  • Greater thermal capacity for towers of another manufacturer, of the same size;
  • Possibility of self-extinguishing models (fire resistant);
  • Robust construction, built with materials that meet the rigor of cooling processes;
  • Modular design, being able to install several towers to meet the capacity;
  • Possible construction with different types of fill to meet water quality;
  • Standard, silent or super silent models.

Industrial Refrigeration

Best equipment for your industrial refrigeration installation, with economical solutions and low maintenance costs.

Caravela-Thermotank's technical staff seeks to achieve excellence in the construction and performance of cooling towers. The result, for installations from 5 TR to 147 TR per cell, is ST series tower. The solution was to create a cooling tower that was fast to manufacture and of enviable quality. ST cooling towers have no joints in their structure, which prevents leaks. The unique construction of ST cooling towers allows up to 60% shorter lead times due to prefabricated components and up to 80% field installation compared to field-mounted towers.

Applications in industrial refrigeration processes

Compared to other cooling towers, the ST series offers unparalleled advantages.

  • Ideal for refrigerators, supermarkets and others;
  • Greater thermal capacity for towers of another manufacture, of the same size;
  • Less amount of wires and pipes for your installation;
  • Possibility of self-extinguishing models (fire resistant);
  • Robust construction, built with materials that meet the rigor of cooling processes;
  • Modular design, being able to install several towers to meet the capacity;
  • Possible construction with different types of fill to meet water quality;
  • Standard, silent or super silent models.

Industrial process

Best equipment for your industrial process, such as reactors, plastic machines, presses, air compressors, and others.

Caravela-Thermotank's technical staff seeks to achieve excellence in the construction and performance of cooling towers. The result, for installations from 3 m3/h up to 100 m3/h per cell, is the ST series tower. The solution was to create a cooling tower that was fast to manufacture and of enviable quality. ST cooling towers have no joints in their structure, which prevents leaks. The unique construction of ST cooling towers allows up to 60% shorter lead times due to prefabricated components and up to 80% field installation compared to field-mounted towers.

Applications in industrial processes

Compared to other cooling towers, the ST series offers unparalleled advantages.

  • Ideal for chemical, mechanical, and any industrial process where heat needs to be eliminated;
  • Greater thermal capacity for towers of another manufacturer, of the same size;
  • Less amount of wires and pipes for your installation;
  • Possibility of self-extinguishing models (fire resistant);
  • Robust construction, built with materials that meet the rigor of cooling processes;
  • Modular design, being able to install several towers to meet the capacity;
  • Possible construction with different types of fill to meet water quality;
  • Standard, silent or super silent models.

Power generation

Best equipment for your generator electricity producer.

Caravela-Thermotank's technical staff seeks to achieve excellence in the construction and performance of cooling towers. The result, for installations from 3 m3/h up to 100 m3/h per cell, is the ST series tower. The solution was to create a cooling tower that was fast to manufacture and of enviable quality. ST cooling towers have no joints in their structure, which prevents leaks. The unique construction of ST cooling towers allows up to 60% shorter lead times due to prefabricated components and up to 80% field installation compared to field-mounted towers.

Applications in industrial processes

Compared to other cooling towers, the ST series offers unparalleled advantages.

  • Ideal for chemical, mechanical and any industrial process where heat needs to be eliminated;
  • Greater thermal capacity for towers of another manufacture, of the same size;
  • Less amount of wires and pipes for your installation;
  • Possibility of self-extinguishing models (fire resistant);
  • Robust construction, built with materials that meet the rigor of cooling processes;
  • Modular design, being able to install several towers to meet the capacity;
  • Possible construction with different types of fill to meet water quality;
  • Standard, silent or super silent models.

Construction Details of the ST Cooling Tower

Cooling tower housing
  1. Made of fiberglass reinforced polyester (fiberglass). Self-supporting, monoblock, without joints;
  2. Corrosion proof, not degrading in most normal and acidic environments;
  3. Easy maintenance;
  4. It has an inspection door, facilitating access to the interior of the cooling tower;
  5. Possibility of self-extinguishing - fire-resistant construction;
  6. Own swimming pool for collection of cooled water. They are part of the pool, a float valve, to replace part of the water lost by evaporation, drag or purge, overflow, drain and outlet connection of cooled water type B16.5 flange, hose and or others to be specified.
Fan
  1. Propellers with adjustable blades, when stopped, high performance "airfoil" profile;
  2. Built in 3 basic systems, based on the noise level allowed at the installation site: Standard - noise level of 85 dB(A) at 2 m distance, Silent - noise level of 78 dB(A) at 2 m Supercilent noise level of 72 db(A) at 2 m away from the noise source.
Drift eliminator
  1. Model Chevron 160. Built in juxtaposed injected polypropylene panels;
  2. Retains process droplets in up to 0.0001% of circulating water. Normalized value in DIN 1947;
  3. They can be built in self-extinguishing material type V0, V1, V2, according to UL 94.
Water distribution
  1. Tubular, built-in PVC, It comes with 1" multiple spray nozzles. It has low-pressure drop and is self-adjusting. Operating range up to 60°C. Higher temperatures are coated with fiberglass.
Heat exchange fill
  1. The heat exchange fill of a cooling tower is the main part of the equipment. The choice of the best type to be installed depends on the quality of the water and its operating temperatures;
  2. GT fill. Constructed with injected polypropylene grids. It has a wavy profile with an inclination of 30°. They are mounted crosswise, in such a way that one "tube" of water crosses the other, causing swirling intent, with excellent thermal exchange. Excellent mechanical stability, with resistance up to 60°C of hot water. For industrial water up to 300 ppm they are unbeatable;
  3. Fill type fime, model A. Constructed in juxtaposed PVC sheets, with crossed canias, similar to the GT. They are by nature self-extinguishing and have good performance in thermal exchange. But they are more fragile. Its application requires that the water be clean;
  4. Triangular bar type fill. Model 18 fl. Built in a triangular profile in PP or PVC, the bars are supported by a fiberglas profile. This type of fill can be used in extremely polluted water with a temperature of up to 60°C. Its thermal efficiency is lower than the other fillers presented here.
Hardware
  1. The usual hardware is made of SAE 1020 carbon steel, hot-dip galvanized after fabrication;
  2. Screws, nuts and washers in cadmium steel or 316 stainless steel.
Accessories To provide long life and ease of operation and installation:
  1. Water treatment. We offer the devices for water treatment, as well as its operation;
  2. Sailor ladder, with guardrail and platform;
  3. Winch installed on the tower, to remove the ventilation set;
  4. Electric control panel for pumps and fans, standard NBR 12;
  5. Key for vibration control;
  6. Hydraulic system, composed of pumps, valves, pressure gauges and belongings.
Catalogs and brochures Download in PDF
  1. Cooling Towers Catalog (pt/BR)