hot water condensing boiler, the quality miles activities which have visited many gas-fired boiler rooms of the heating industry are highly praised

Improper water treatment is the leading cause of tube damage and poor performance in a boiler system. In this month, ZOZEN will discuss the consequences of introducing your boiler to hard water and the importance of utilizing a water softener.

Adhering to the concept of green development, ZOZEN Boiler and Lenzing (Nanjing) Fiber Co., Ltd. have reached a cooperation on the gas-fired steam boiler project to deepen the sustainable development and achieve the win-win result.

hot water condensing boiler, The WNS series oil-fired/gas-fired boiler is a kind of fire tube wetback boiler with a two-pass or three-pass structure. It is equipped with foreign advanced burner, economizer and condenser installed at the end of flue gas duct to lower the exhaust temperature to 60℃, achieve the thermal efficiency of over 98% and control the emission of NOx to less than 30mg/Nm3. It has the characteristics of compact structure, small covering area, short installation period, easy operation and complete automatic control system which can realize unattended operation.

The furnace of ZOZEN’s SZL series coal-fired boiler adopts a closely arranged water-cooled wall tube structure, which effectively prevents the erosion and radiation of high-temperature flue gas for the furnace. The furnace has large radiation area, small maintenance workload and light overall weight. In order to improve the coal applicability of industrial boilers, ZOZEN Boiler designs adiabatic furnace, water-cooled furnace, adiabatic arch, water-cooled arch, etc., and chooses different furnace structures according to calorific value, volatile content and coking characteristic index of coal provided by customers.

In terms of welding technology, ZOZEN longitudinal and circumferential seam welding adopts advanced automatic submerged arc welding technology, and 100% X-ray detection is carried out on the welding seam to ensure the welding quality. The welding of the smoke tube and tube sheet adopts pre-expansion first to eliminate the gap between the tube and tube sheet, and then adopts the automatic argon arc welding technology, which can effectively eliminate the stress and extend the service life of the boiler.

hot water condensing boiler, AO《NAVOIYAZOT》is a leading chemical company in Uzbekistan, mainly engaged in production of mineral fertilizers and chemical reagents. Steam boilers provide heat energy for chemical production processes such as polymerization, drying and dehydration. ZOZEN reached a cooperation agreement with Navoiyazot based on its good market reputation and high professionalism in Russian-speaking region. ZOZEN customized the SZS series gas-fired boiler system solution for Navoiyazot. 

hot water condensing boiler, Industrial boiler belongs to special equipment and has high requirements for product safety factors. As the domestic well-known boiler supplier, ZOZEN has advanced mechanical equipment, mature manufacturing process and guarantee of boiler quality. In addition, via the innovation and development of ZOZEN’s professional design team, the structure and material of boiler proper are continuously improved and optimized to greatly extend boiler’s service life. It is also worth mentioning that ZOZEN’s automatic boiler control system with dozen kinds of safety protection interlocks can fully ensure boiler’s safety. In the aspect of environmental protection performance, ZOZEN boilers are also outstanding. The flue gas emission of ZOZEN boilers nearly meets the EU standards. The NOx emission is low to 30mg, which realizes the goal of low-nitrogen emission.