The UNIVERSAL steam boiler ZFR is a shell boiler in three-pass technology with two flame tubes and completely separate smoke gas passages. Compare this product Don’t compare this product See the other products Bosch Industriekessel GmbH - Industrial Boilers

Jul 04, 2019· Sitong Boiler is the professor of industrial boiler manufacturer, supply more higher efficiency three-pass boiler, three-pass boiler can make the most efficient use of …

Every set of tubes that the flue gas travels through, before it makes a turn, is considered a "pass." So, a three-pass boiler will have three sets of tubes with the stack outlet located on the rear of the boiler. A four-pass boiler will have four sets and the stack outlet at the front.

A 3-pass firetube boiler design consists of three sets of horizontal tubes, with the stack outlet located on the rear of the boiler. A downdraft design keeps the cooler water from having an effect on the hot surfaces within the boiler.

A boiler or steam generator is a device used to create steam by applying heat energy to water.Although the definitions are somewhat flexible, it can be said that older steam generators were commonly termed boilers and worked at low to medium pressure (7–2,000 kPa or 1–290 psi) but, at pressures above this, it is more usual to speak of a steam generator.

Superior Boiler is the world’s leading manufacturer of industrial Scotch Marine firetube boilers, firebox boilers, waste heat recovery boilers, watertube boilers as well as high efficiency condensing boilers and vertical space heating boilers for commercial markets.

The immersion fired boiler is a single-pass fire-tube boiler that was developed by Sellers Engineering in the 1940s. It has only firetubes, functioning as a furnace and combustion chamber also, with multiple burner nozzles injecting premixed air and natural gas under pressure.

[PDF]and maintenance of the boiler 2 3 4 1 5 The Vitoplex 100-LS is a compact three-pass boiler for generating low pressure steam in the output range between 0.26 and 2.2 t/h. This boiler is designed for a permissible operating pressure of 1 bar (high pressure). Subject to requirements, the operating pressure can be reduced to 0.5 bar (low pressure).

 WNS three-pass condensing gas-fired steam boiler is an environmentally friendly boiler product of ZOZEN. With advanced low NOx burner, the boiler thermal efficiency can be as high as 98% while achieving ultra-low emission of NOx≤30mg/Nm³.

Three pass boilers: A three pass design provides three opportunities for heat transfer. The stack temperature of 3 pass will be lower than that of 2 pass boiler, of the same design and operating pressure. Efficiency is more than two pass boiler.

Two boiler designs have recently emerged to suit the present requirements of the cane sugar industry, viz the single pass panel wall unit and the three pass, bottom supported boiler with an open pitch furnace tube construction. The former is less susceptible to erosion compared with the original concept of the three pass boiler.