High Quality Hot Water / Steam Biomass Boiler

High Quality Hot Water / Steam Biomass Boiler

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.
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Product Introduction

We guarantee that through continuous innovation, hard research and development, as well as firm determination to constantly improve the Debris Filter, Condenser, Coal Fired Boiler. We treat every customer with enthusiasm, adhere to integrity and integrity in our business activities, and are committed to creating value for customers. We have worked together with our peers to overcome a number of common technologies and key technologies in the industry. The company adopts international advanced management methods and has established a complete quality assurance system. It has advanced product testing equipment, inspection instruments and processing equipment, an excellent product development environment and product production line, and strong productivity. The company is determined to bring you a comfortable and harmonious living environment. The design style focuses on the four principles of fashion, elegance, comfort and practicality, and brings quiet and comfortable home enjoyment to modern people who live in stress.

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

Model

Rated thermal power (MW)

Rated working pressure (MPa)

Rated output water temperature (℃)

Rated imported water temperature (℃)

DZL1.4-1.0/115/70-M

1.4

1

115

70

DZL2.8-1.0/115/70-M

2.8

1

115

70

DZL4.2-1.0/115/70-M

4.2

1

115

70

DZL7-1.25/115/70-M

7

1.25

115

70

DZL14-1.25/115/70-M

14

1.25

115

70


We hope to transform technological advantages into economic and competitive advantages, so as to build a world-class supplier of High Quality Hot Water / Steam Biomass Boiler. Honesty, service first, diligence and excellence, friendly symbiosis. Responsibility is the common soul of our employees and the cornerstone of our success.

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