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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.


Silica in boiler feed water - Metro

2015-5-12 · Excessive silica concentrations in the boiler feed water can lead to deposits on turbine blades and must therefore be avoided. Silica analysis is carried out via differential photometry using a leading-edge technology thermostatic cuvette module for non-sample contact at the detector. Typical concentration ranges for silica are 0–50 ppb and 0–1 ppm or higher.</p>

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Common Boiler Problems (Part 2: Carryover) | Facebo

2012-9-20 · Common water-related problems inside the entire boiler system are: i. Carryover ii. Deposition iii. Corrosion Carryover Problems Carryover problems are caused by misting, foaming, priming, and silica carryover.

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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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Silica Scaling in Boilers - Lennte

The conditions under which vapour silica carryover occurs have been investigated and documented. It has been demonstrated that for any given set of boiler conditions using demineralized or evaporated quality make up water, silica is distributed between the boiler water and the stream in a definite ratio.

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COLLOIDAL SILICA IN BOILER WATER - linkedin.c

2018-10-1 · The three common kinds of silica are soluble, colloidal and particulate. The standard test for the analysis of silica in water is a rapid technique based upon the blue reduced silicomolybdate complex.

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Boiler feedwater - Wikiped

2019-9-27 · Boiler feedwater is an essential part of boiler operations. The feed water is put into the steam drum from a feed pump. In the steam drum the feed water is then turned into steam from the heat. After the steam is used it is then dumped to the main condenser. From the condenser it is then pumped to the deaerated feed tank. From this tank it

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Table 3-7. Silica Levels Allowed in Boiler Wat

Silica Levels Allowed in Boiler Water. Figure 3-14. Water Boiler Mist Formation: 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.

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Understanding Differences of Boiler Feedwate

2015-11-3 · Understanding Differences of Boiler Feedwater Pretreatment Equipment By Dave Christophersen, CWT Originally Published: Water 101, a Crown Solutions training document A s a water treatment professional, colloidal silica. x Water quality of less than 15 P S and less than 1 P S with mixed bed polishing. (In a mixed

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What Is a Boiler Feed Water Treatment System an

The most appropriate boiler feed water treatment system will help the facility avoid costly plant downtime, expensive maintenance fees, and boiler failure as a result of scaling, corrosion, and fouling of the boiler and downstream equipment. But what is a boiler feed water treatment system and how does it work?

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Using Reverse Osmosis for Boiler Pretreatment - Veoli

2015-11-3 · Pretreatment 43 Using Reverse Osmosis for Boiler Pretreatment By James McDonald, PE, CWT and Dave Christophersen, CWT Originally Published: Analyst, Summer 2003 T here are numerous makeup water pretreatment strategies for boiler systems

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THE BASICS OF BOILER WATER CHEMISTRY

2018-8-5 · • Small amount of boiler water drawn off near surface continuously or intermittently • Function is to control concentration of dissolved solids; provide correct boiler water chemistry • Bottom blowdown • Water emptied from mud drum or bottom of firetube boiler; function is removal of "sludge" • Done on regular schedule

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