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Welcome to ZOZEN

ZOZEN is one of the best modern boiler manufacturers in China, our products include steam boilers, hot water boilers and thermal oil heaters. ZOZEN boiler is located in Wuxi, covers 150 thousand square meters of production area, equipped with first-class production equipment, passed the ISO9001:2000 international quality system certification. The company gained the " S " and " U " steel seal from ASME of US.

Customer service

If you run into any problems with the boiler, please contact us directly by email or fill out the online service request. We will do our best to resolve any problems you might have within 24 hours.

In case of special condition, ZOZEN will forward your request to one of its partnered sales representatives depending on the country and state. The local maintenance personnel will arrive at the customer site as soon as possible.


Colloidal Silica - Treatment and Remov

2013-2-5 · For treated water for high pressure boilers: In the boiler drum colloidal silica is converted into reactive silica due to the high temperature and pressure conditions present in the boiler drum. So limiting criteria are designed for total silica, as follows - Boiler Pressure (psig) SiO 2 Tolerance in Feed Water (ppm) 1000 0.01 0.02 1500

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Table 3-7. Silica Levels Allowed in Boiler Wat

Silica Levels Allowed in Boiler Water. 25 May 2005. turbine blades. Maintaining a low silica level in the boiler water can control silica. carryover. The acceptable level is dependent upon the boiler operating pressure; Table. 3-7 shows suggested limits. Table 3-7. Silica Levels Allowed in Boiler Water. Allowable. Boiler Pressure. Silica

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silica in boiler water - Constructed items genera

2003-9-24 · any clues as to how silica shows up in boiler water when demin supply is less than 2ppb and blow down is i.e. removing the silica, the problem is the silica content at the inlet is always high and this is reducing the operating life of the resin. Thank you again for your help. but at the same time engineers are under increased pressure

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silica in boiler water | Industrial Boiler Produc

Boiler Feedwater Treatment (Part II): Water Boiler Feedwater Treatment (Part II): Water Treatment Fundamentals, Technical Library, Sedifilt String-Wound Filter CartridgesColloidal Silica – Treatment and RemovalColloidal silica is non-ionic, and is typically found in surface waters.

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Bench scale electrodeionization for high pressur

Highlights Long term performance of bench scale EDI showed stable and high product quality. Technical and economical aspects were evaluated for high pressure boiler feed water. Dissolved CO 2 in water (HCO 3 −) is a suspected substance that influences the pH. The specific water cost was US$0.53/m 3, lower than existing ion exchange bed. The main operating costs were membrane replacement and

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silica in boiler water – lng-steam-boiler-manufactur

Silica and Boiler Feed Water Silica is a problem for high pressure boilers.Colorimetric Determination of Silica in Boiler WaterWe review shortest path algorithms based on the multi-level bucket data structure (6) and discuss the interplay between theory and engineering choices that leads to Scaling in boilers – LenntechIf the silica enters

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Silica in steam - SlideSha

The amount of silica expected in the steam from a particular boiler is shown by the intersection of the boiler pressure line and boiler water silica line. For example, a boiler operating at 1400 psi with 10 ppm silica in the boiler water would show about 0.04 ppm in the steam. Figure 3 — Ratio of silica in steam to silica in water vs boiler

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What is silica level in boilers? - Answers.c

silica level changes according to boiler type sub or super critical boiler but its level should be less than 200ppm at rated condition has primarily erupted high-silica dacite in modern times

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High-Pressure Steam Cycle and Boiler Water Treatme

2010-8-3 · •Both need pretreatment providing good quality makeup water and oxygen removal – Critical to high pressure • Both use an internal treatment • Both use an oxygen scavenger/reducing agent • Both use an after-boiler steam treatment program HP and LP Similarities

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TECHNIFAX Selective silica carryover - steamforum.c

2012-12-2 · the boiler water. The amount of silica expected in the steam from a particular boiler is shown by the intersection of the boiler pressure line and boiler water silica line. For example, a boiler operating at 1400 psi with 10 ppm silica in the boiler water would show about 0.04 ppm in the steam. Figure 3 — Ratio of silica in steam to silica in

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Characteristics of boiler feedwater - Lennte

A low-pressure fire-tube boiler can usually tolerate high feed-water hardness with proper treatment while virtually all impurities must be removed from water used in some modern, high-pressure boilers. Only relatively wide ranges can be given as to maximum levels of alkalis, salt, silica, phosphates etc, in relation to working pressure.

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