Cross Flow Cooling Tower
The Perfect Atmosphere for Cooling Towers Cooling towers - the name itself gives the air of the opposition to shoot. Its existence is for the soul purpose of removing heat . However, cooling towers contain very real dangers of fire : Polyvinyl chloride (PVC ) filler ; Fiberglass Reinforced Plastic ( FRP) walls ( FRP often mistaken as an acronym of heatresistant plastic ) , battery fan , fan covers , fan blades, shutters, walls and sinks , acrylonitrile -butadiene- styrene ( ABS) and polypropylene nozzles and wood. Cooling towers are susceptible to fire when they are online or not. When a cooling tower is online, there are several dry areas within the building fire risk available to feed a fire. When cooling towers are offline, are at greater risk of fire with a larger volume of dry space to invade . Do not wait until fire breaks out in a cooling tower to find the fire sprinkler pipes have failed. Wooden cooling tower Causes: Impairment Cooling Tower Pipe Pipe corrosion and scale formation is part of the life cycle of the pipes within a cooling tower . Humid conditions of life these tubes are the perfect size for the deterioration of fire tubes catalyst. In fact, without the pipe and metal components generally keep- up is estimated to have a cooling tower to be completely demolished and rebuilt approximately every twenty years. There are three main triggers of pipe failure in a cooling tower . 1. Polluted water Many cooling towers are open and exposed to the outside environment . Particulate air pollution and dissolved gases pollute the water. When the evaporation takes place , pure water vapor enters the atmosphere , while the contaminated water remaining in the cooling tower in a concentrated state. This speeds up the corrosion process . The corrosion process is dictated by the speed of the water . High velocity water volume increases corrosion and oxygen transport the particles to the metal pipes at a rapid rate , providing the opportunity to contaminate a larger volume of the pipe . When the velocity of the water is low , the distribution of particles is found, causing further damage to a smaller area . The deterioration matter sitting in one place , giving you the chance to eat out on the line in a concentrated way .
Polluted water affects the pH balance of the water, providing new opportunities for the deterioration and corrosion. 2. PH balance The water in the cooling towers comes from a variety of sources, and the source will dictate the pH balance of the water. The damage caused by the particles is exasperated when the water loses its balance and pH becomes too acidic or too alkaline. PH imbalance may cause either formation or corrosion , depending on the number that arrives on the pH scale . Timber cooling tower The water that is six equilibrium pH is acidic or lower and increases corrosion. The acid solution is mixed with oxygen and contaminants such as chloride or sulfate will cause corrosion . Corrosion is the deterioration of metal by chemical or electrochemical reaction with its environment . The water has a pH balance of 8 or higher is too alkaline , causing scales to form . Alkaline water has high concentrations of calcium and / or magnesium. Calcium carbonate or magnesium is deposited on the pipes, scales creation . When the scales accumulate, it can trap oxygen, causing corrosion . No annual inspection , testing and maintenance , installation of the pipeline would not know until it happens deterioration a fire event , leaving water supply facilities for their fire protection sprinkler . Scale buildup can cause microbial growth between scales and pipes. This can cause corrosion of pipes called microbial induced corrosion ( MIC ) in addition to the problems already present scale. There are three different types of attacks against metal : • general attack : Corrosion is distributed evenly over the surface of the metal. • Pitting Attack : The small areas of the metal corrodes , as in the case of MIC . • Galvanic Attack : corrosion when two dissimilar metals are in contact. 3. warm The warm atmosphere is the perfect environment for microbes to thrive . Microbial growth results in differential aeration. Differential aeration , also known as oxygen concentration cells , occurs when oxygen is trapped between the scale and metal pipe . This trapping will not allow oxygen to diffuse naturally and evenly. Without the ability to spread evenly , oxygen concentration becomes a cell , causing the cell concentration to eat away at the pipe where it is trapped . Each increase of 25 to 30 degree temperature corrosion velocity doubles. counter flow cooling tower Contaminated water , pH balance , and a warm atmosphere all act in combination to corrode pipes or fire scale.
Ensuring security in the event of a fire Due to the nature of a cooling tower , it is difficult to find an appropriate time to take it offline for inspection, testing or maintenance . However, annual inspections could lead to a longer life for cooling the fire tower . The environment of a cooling tower is ideal for pipeline decomposition formula . Can not stop , but it may be delayed . To delay the decay pipe , annual inspection and testing must be completed by a provider of fire protection rated . If corrosion or scale buildup is detected early , can be corrected when it is only a small problem and delay the need for a completely new system . If the formation of scale or corrosion and maintenance is required , the pipe system may be replaced with stainless steel , which decays at a much slower rate than standard steel . Do not delay the replacement of a fire protection system when it has been corroded beyond repair point. Cooling systems fire tower , in general, need to be replaced every 7-10 years due to corrosion. No annual inspection , the only way for a facility to learn the system of fire protection piping corrode or scale formation is significant if there is a fire and no fire protection solution . When a replacement fire sprinkler system is required, choose a provider of fire protection solutions that can meet the accelerated cooling towers require calendar. Many aspects of the installation can be done before or offsite to minimize disruption : the design, the survey material spillage outside , safety training , and manufacturing of custom tubing. For more information about the dangers of cooling tower , FM Global has compiled a cross datasheet available here or click here for training tower fire danger cooling FEMA. Crystal Cooling Towers manufacturer, exporters and suppliers of Cooling Tower and frp Cooling Tower.