An international hotel in Pakistan, with 190 guest rooms in its single building. At present, the original heating equipment of the hotel, the coal fired hot water boiler, has been used for a long time, the accessories have been worn to a large extent and the pollution is serious, so it is urgent to purchase a new boiler. In the process of getting to know Xinli boiler, the hotel valued the excellent product performance and perfect post service of Xinli boiler and decided to cooperate with Xinli boiler finally. Xinli boiler provided it with a new 4-ton coal fired steam boiler. The corrugated furnace liner, threaded flue pipe, new thermal insulation materials and key treatment of vulnerable parts adopted by this series of boilers have improved the overall performance of the boiler, achieving high thermal efficiency and longer service life.

The DZL series coal fired steam boiler of Xinli boiler adopts a unique three-way design of water and fire tubes, which fundamentally solves the problem of tube plate cracking of pure fire tube boilers and ensures the safety and stability of boiler operation. At the same time, the high-efficiency heat transfer element screw pipe is selected as the fire pipe of the boiler. The heat transfer coefficient is 1.8 times higher than that of the ordinary smoke pipe, which effectively enhances the heat transfer effect and makes the thermal efficiency of the boiler reach more than 82%. In addition, this series of steam boilers are transported out of the factory in a single package, which has the advantages of simple installation and low capital investment. After the boiler components are transported to the site and put in place, the connecting pipes, valves, flue gas ducts and control lines can be put into operation.