Bespoke Chemical Dosing System for Chilled Water

Model NO.: XQ Salt Rejection Rate: 98.5% Capacity: 100 Gallon Specification: ISO 9001 HS Code: 8421999000 Certification: ISO9001, SGS Application: Industry Trademark: peide Origin: China Application of Dosing systems in Chemical dosing systems I. Common problems of cooling water system 1.Corrosion Cooling water systems are an ideal environment for the reversion of the metal to the original oxide state. This reversion process is called corrosion. 2.Scale Minerals such as calcium carbonate, calcium phosphate, and magnesium silicate are relatively insoluble in water and can precipitate out of the water to form scale deposits when exposed to conditions commonly found in cooling water systems. 3.Fouling The deposition of suspended material in heat exchange equipment is called fouling. Foulants can come from external sources such as dust around a cooling tower or internal sources such as by-products of corrosion. 4.Biological Contamination Cooling water systems provide an ideal environment for microbial organisms to grow, multiply, and cause deposit problems.

Working Principle
Technological Process of  Chemical dosing systems

  III. Classification of chemical agent of Cooling tower Dosing System 3.1 Corrosion Inhibitors for Cooling Water Chemical Treatment has a comprehensive portfolio of organic, inorganic, and non-phosphate corrosion inhibitors engineered to passivate metals by reducing the corrosion potential associated with the anode and cathode of the corrosion cell. Chemicals that form protective films at the anode include chromate, orthophosphate, nitrite, silicate, and molybdate. Chemicals that form films on the cathode include calcium carbonate, polyphosphate, zinc, phosphonate, and azoles. We have a selection of organics that are both anodic and cathodic inhibitors. 3.2 Scale/Deposition Control ChemTreat's chemical product lines to control deposition and fouling consist of two major classes of dispersants. Polymers prevent, or reverse, the growth of mineral deposits, while surfactants, or surface-active agents, render particles less adherent and more easily dispersed. 3.3 Biological Control Our biological control programs are customized by your field engineer to produce the best organism kill-rate with chemicals from our complete portfolio of biocides, including oxidizing and non-oxidizing biocides, cell wall and cytoplasm toxicants, and enzyme poisons.   III. Monitoring and control of Dosing systems in circulating cooling water 4.1 Interconnected control of PH value on-line detection and acid adding 4.2 Interconnected control of conductivity on-line detection and discharge capacity 4.3 Interconnected control of ORP on-line detection and oxidative fungicide 4.4 Interconnected control of concentration on-line detection and dosing quantity of scaling-corrosion inhibitor   Application of Dosing systems in the chilled water system I. Common problems of chilled water system As the water quantity of the chilled water system remains almost the same and the calcium and magnesium in the water will not increase due to the circulation, so its trend structure is not so serious. The problem of the system mainly lies in the dissolved oxygen corrosion because of the microcell formed by the carbon steel in the water. The process of corrosion reaction can be expressed as:     Ferric hydroxide is quite easy to be oxidized into red brown rust and this is the main reason for red water in the chilled water. In the open-type and spray-type chilled water system, as part of the system exposes to air or directly contact with air, the dissolved oxygen content in the system is very sufficient; while in the closed-type chilled water system, the dissolved oxygen will become insufficient due to the consumption caused by corrosion. Despite of this, there is still some dissolved oxygen left in the system, mainly coming through the valve, pipe joint and thrust pad of pump. Besides, though the chilled water system is seldom supplemented with water, the dissolved oxygen will also be added into the system with the supplementary water. Therefore, the dissolved oxygen is the main reason which causes the corrosion of chilled water system. As the chilled water system runs in a closed circulation for a long time, it will lead to the propagation of anaerobic bacteria which can also corrupt the pipe.   Dimension parameter data table for the dosing systems

Type	Volume of chemical tank	Dimension			Flow rate of circulating water
	L	Length(L)	Width(L)	height(L)	m3/h
One tank with One pump	100	550	550	1250	no more than 300
One tank with One pump	200	650	650	1440	no more than 5000
One tank with One pump	500	910	910	1650	no more than 20000
One tank with One pump	1000	1140	1150	1800	no more than 30000
Two tank with Two pump	200	1250	650	1440	no more than 5000
Two tank with Two pump	500	1770	910	1650	no more than 20000
Two tank with Two pump	1000	2250	1150	1800	no more than 30000
Three tank with Three pump	200	1250	650	1440	no more than 5000
Three tank with Three pump	500	1770	910	1650	no more than 20000
Three tank with Three pump	1000	2250	1150	1800	no more than 30000
Three tank with Three pump	200	1850	650	1440	no more than 5000
Three tank with Three pump	500	2630	910	1650	no more than 20000
Three tank with Three pump	1000	3350	1150	1800	no more than 30000

  Note: 1. The quantity of chemical tank shall be subject to the categories of the dosing drug. (One chemical tank for one kind of drug) 2. The installation of agitating device shall be subject to the property of the drug. 3. The selection of the detector (PH, ORP, concentration detector, conductivity meter) shall be subject to the characteristics of the system.)   Dosing systems in the Water Purification system I. Flocculant dosing The HMM flocculant added into the water plays a role of bridging between two particles which will become larger into a large particle flocculating constituent, which is conducive to the precipitation of colloidal and particulate matter in water. So it is usually used before the quartz Sand Filter. II.Chlorine disinfection Chlorine is one of the most widely used disinfectants. It is very applicable and very effective for the deactivation of pathogenic microorganisms. Chlorine can be easily applied, measures and controlled. Is is fairly persistent and relatively cheap. Chlorine has been used for applications, such as the deactivation of pathogens in drinking water, swimming pool water and wastewater

Packing
  FAQ   Do you have certificates? Yes , we have ISO certificate and certificate of patent Do you have design team? We have a professional design team provide drawings, we wait for your confirmation and production Can you guarantee delivery time ? Timely transport, ensure the delivery time Are you maufacturer ? Yes, we are the professional Water Treatment Equipment manufacturer in china

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