Industrial Cooling Tower Valve Replacement – ZECO Valve

Forced Draft Cooling Tower – Cooling Tower

Jerry — Tue, 28 Dec 2021 10:13:16 +0000

There are many benefits of using a forced draft cooling tower. And that is exactly why so many industrial plants opt for this model over the other options. Forced draft cooling towers are very powerful and affordable at the same time. These models will remove low-potential heat that is generated in the production process. A counterflow of air combined with hot water results in a transfer of heat in the cooling fill. Paper and chemical industry plants often prefer to use forced draft cooling towers.

What is a Forced Draft Cooling Tower?

The forced draft cooling towers represent a flexible and powerful but economical cooling technology suitable for the most of industrial plants.

Components of Forced Draft Cooling Tower

The outer shell (material: FRP, steel, stainless steel, concrete)
supporting structure
fan stack
cooling fill
drift eliminators
fan with drive
water distribution system including spraying nozzles
water basin

Benefits of Forced Draft Cooling Tower

Ease of maintenance.
Lower noise levels.
Dry air stream drive.
Low-absorbed capacity.

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The post Forced Draft Cooling Tower – Cooling Tower appeared first on ZECO Valve.

Cooling Towers: Operating Principles and Systems & Cooling Tower Valves

Jerry — Tue, 28 Dec 2021 10:12:53 +0000

The huge, perfectly shaped cylindrical towers stand tall amidst a landscape, with vapor billowing from their spherical, open tops into the blue sky. Such an image usually provokes a thought related to nuclear power or a mysterious energy inaccessible to the millions of people who drive by power plants every day. In reality, cooling towers – whether the hyperboloid structures most often associated with the aforementioned nuclear power plants or their less elegantly shaped cousins – are essential, process oriented tools that serve as the final step in removing heat from a process or facility. The cooling towers at power plants serve as both an adjuster of a control variable essential to the process and also as a fascinating component of the process behind power creation.

Cooling Towers: Operating Principles and Systems

The importance and applicability of cooling towers is extensive, making them fundamentally useful for industrial operations in power generation, oil refining, petrochemical plants, commercial/industrial HVAC, and process cooling.

The following are some of the applications of Cooling Tower:

Air compressors with a water cooling system
Blow Molding and Compression Molding Machine
Machinery for die casting
Plant for deep freeze and anodizing
Plant for generating electricity
VAM machinery and liquid air conditioning systems
Machines that process natural gas
Stations that generate electricity
Oil and gas facilities
Plants that are semi-conductor
Hydrocarbon facilities
Boiler Application
Chiller Application
Die Casting Application
Furnace Application
Fot Dip Galvanizing
Hydraulic Press

Operating Principles of Cooling Tower

In principle, an evaporative cooling tower involves the movement of a fluid, usually water with some added chemicals, through a series of parts or sections to eventually result in the reduction of its heat content and temperature. Liquid heated by the process operation is pumped through pipes to reach the tower, and then gets sprayed through nozzles or other distribution means onto the ‘fill’ of the tower, reducing the velocity of the liquid to increase the fluid dwell time in the fill area. The fill area is designed to maximize the liquid surface area, increasing contact between water and air. Electric motor driven fans force air into the tower and across the fill area. As air passes across the liquid surface, a portion of the water evaporates, transferring heat from the water to the air and reducing in the water temperature. The cooled water is then collected and pumped back to the process-related equipment allowing for the cycle to repeat. The process and associated dispersion of heat allows for the cooling tower to be classified as a heat rejection device, transferring waste heat from the process or operation to the atmosphere.

Evaporative cooling towers rely on outdoor air conditions being such that evaporation will occur at a rate sufficient to transfer the excess heat contained in the water solution. Analysis of the range of outdoor air conditions at the installation site is necessary to assure proper operation of the cooling tower throughout the year. Evaporative cooling towers are of an open loop design, with the fluid exposed to air.

A closed loop cooling tower, sometimes referred to as a fluid cooler, does not directly expose the heat transfer fluid to the air. The heat exchanger can take many forms, but a finned coil is common. A closed loop system will generally be less efficient that an open loop design because only sensible heat is recovered from the fluid in the closed loop system. A closed loop fluid cooler can be advantageous for smaller heat loads, or in facilities without sufficient technical staff to monitor or maintain operation of an evaporative cooling tower.

Thanks to their range of applications, cooling towers vary in size from the monolithic structures utilized by power plants to small rooftop units. Removing the heat from the water used in cooling systems allows for the recycling of the heat transfer fluid back to the process or equipment that is generating heat. This cycle of heat transfer enables heat generating processes to remain stable and secure. The cooling provided by an evaporative tower allows for the amount of supply water to be vastly lower than the amount which would be otherwise needed. No matter whether the cooling tower is small or large, the components of the tower must function as an integrated system to ensure both adequate performance and longevity. Understanding elements which drive performance – variable flow capability, potential HVAC ‘free cooling’, the splash type fill versus film type fill, drift eliminators, nozzles, fans, and driveshaft characteristics – is essential to the success of the cooling tower and its use in both industrial and commercial settings.

Design or selection of an evaporative cooling tower is an involved process, requiring examination and analysis of many facets. Share your heat transfer requirements and challenges with cooling tower specialists, combining your own facilities and process knowledge and experience with their application expertise to develop an effective solution.

What is Cooling Tower Valves?

Cooling towers are a critical need for any industrial and manufacturing operation. Their role in extracting heat and delivering it to the atmosphere through evaporative cooling leverages the principle of heat rejection. The essential element of a cooling tower is water that is delivered through a piping system. These steady flow devices cool the water by evaporation with direct contact of the air. Evaporatively cooled equipment like cooling towers typically utilize a multi-cell configuration. While these systems offer improved efficiency, operational flexibility, and advanced controls, they can only perform as well as their hardware is designed and built. One of the most important components of a cooling tower is its valves. This is why Zeco offers cooling tower valves to optimize the performance of your cooling towers, reduce downtime, and eliminate maintenance.

How do Valves improve the performance of Cooling Tower?

A direct replacement valve that is optimized for all existing crossflow cooling tower distribution valves and can mitigate the need of constant maintenance and replacement while improving efficiency and performance. A valve that is manufactured entirely from 304L or 316L stainless steel and UHMW-PE plastic eliminates corrosion concerns. Also, valves that feature a 30% larger discharge area and 40% reduction in weight compared to conventional distribution valves are the new industry standard.

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The post Cooling Towers: Operating Principles and Systems & Cooling Tower Valves appeared first on ZECO Valve.

Delta Cooling Towers

Jerry — Tue, 28 Dec 2021 10:08:22 +0000

Delta’s factory-assembled cooling towers have a seamless, molded design and are not prone to leaking or rusting, and never need to be sealed. The cooling towers and packaged cooling systems allow for simple installation along with great performance for both industrial and HVAC applications.

Delta Cooling Towers

Delta Cooling Towers are made from a CORROSION PROOF engineered plastic. The cooling tower shell will never rust, flake, chip, peel or ever need painting or protective coatings applied. Delta believes its towers are the future of the industry. Metal towers do not have long-term corrosion protection advantages for outdoor usage. The galvanizing or other metal treatments only delay the corrosion of the underlying, often thin gauge sheet metal.

Delta Cooling Towers manufactures corrosion-resistant cooling towers for commercial and industrial applications.

Features of Delta Cooling Towers

Seamless double wall engineered plastic (HDPE) shell
Corrosion proof construction
Direct drive fan system
Totally enclosed VFD-rated motors
Factory assembled for simple installation
20 Year shell warranty
PVC water distribution system with non-clog large orifice removable nozzles
High-efficiency PVC fill
Made in the USA

Delta Cooling Tower Systems Options

Packaged Cooling Systems can include either open or closed-loop heat exchangers along with skid-mounted pumps and control units. These Packaged Cooling Systems allow for simple installation with minimal site work required. Delta Cooling Towers come with an industry-leading 20-year warranty on the unitarily molded cooling tower casing.

Delta products:

Comfort Cooling – HVAC
Process Cooling – Industrial
Power Generation

Test Results of Delta Cooling Tower

Cooling Tower Shell	Anti-Microbial Efficacy
Delta AM HDPE	YES
Stainless Steel	NO
FRP	NO
Cooling Tower Fill	Anti-Microbial Efficacy
Anti-Microbial Fill	YES
Standard Fill	NO