Industrial Gas (Oil/Coal) Fired Thermal Oil/Electric/Biomass/Hot-Water/Steam Boiler for Factory/Manufacture

We have established a set of scientific production management mode in the long-term market tempering and are determined to dedicate Steam Turbine Diaphragm, Coal Fired Boiler, Low Medium and High Voltage Brushless Excitation Generator to the masses of people in need. We are committed to making our company bigger, stronger, and longer-term, and show our strength and demeanor to the world with our super international competitiveness and influence. We strive to win the recognition and praise of all related parties, accumulate positive energy and promote the positive cycle. The company adheres to the innovation-driven development strategy to create new engines; adheres to reforms to stimulate new vitality; adheres to openness to drive and expand new spaces. Our business has already setup a professional, creative and responsible workforce to develop purchasers together with the multi-win principle.

Products Brief Introduction

DZL series package boilers are horizontal three-pass water & fire tube boilers with a chain grate stoker structure. Threaded pyrotechnic tubes are arranged in the drum to form a convection heating surface, while the drum and the water walls on both sides form a radiation heating surface in the furnace. Each package system is fully installed and wired before being transported to site and is electrically controlled to provide functions such as stepless speed regulation for the stoker, threshold parameter alert and interlock protection.

Technical Advantages

CNC manufacturing technology

● The key processing technologies such as steel plate blanking, circling, drum and tube plate drilling adopt advanced CNC machining to reduce the assembly stress and prolong the service life of the boiler.

● Steel tube cutting, thread tube pressing and convection tube processing all adopt advanced CNC technology.

● Arched tube sheets and threaded fire tube was first adopted in China to increase heat transfer and completely solve the problem of cracking of the back tube sheet.

● Chain grate plate and back smoke chamber plate is cut by CNC plasma cutting machine, which looks neat and beautiful.

Advanced welding process

● The vertical and circumferential seam welding of the boiler adopts advanced automatic submerged arc welding technology to ensure the welding quality. All vertical and circumferential welds will go through 100% ray detection.

● The welding of smoke tube and the tube plate adopts pre-expansion to eliminate the gap between the tube and tube plate, then be welded by automatic argon arc welding, which effectively eliminate stress and prolong boiler life.

● The flange of the socket is welded by robots.

● The chain grate is manufactured by our factory, and it is tested for 72 hours before leaving the factory to ensure that the tightness is moderate and won't deviate.

Precision parts processing

● Advanced manufacturing technology, using assembly line automatic spinning manufacturing.

● Enhance heat transfer and raise boiler thermal efficiency.

● Threaded smoke tubes are highly efficient heat transfer elements which is from many years research of our company. After continuous optimization, the heat transfer coefficient is 1.8 times higher than normal smoke tubes.

Unique structural design

● Disturbed flue gas to ensure complete combustion of volatile matters.

● The air volume takes about 30% of the total amount, and the wind speed is 50m³.

● The independent secondary fan makes it easy to control and adjust the wind volume and pressure.

● The high-temperature smoke generated by the combustion first enters the horoscope flue on both sides of the body from the tail (in this case, the boiler is water tube type), and the flue gas flows outside the tube.

● The flue gas cooled by the horoscope flue enters the threaded tube (in this case the boiler is fire tube type) arranged in the drum from the front smoke chamber.

● The flue gas will be exhausted from the back smoke chamber, this design fundamentally solves the problem of cracking of the tube sheet of a simple fire tube boiler.

Main Specifications

We improve the core competitiveness of enterprises. Keep up with the development trend of the Industrial Gas (Oil/Coal) Fired Thermal Oil/Electric/Biomass/Hot-Water/Steam Boiler for Factory/Manufacture industry. After customers place orders, we will speed up the production to ensure the construction period. We actively participate in public welfare undertakings in accordance with the different needs of each stage of social development.