Chinese Excellent Quality 100, 000kcal Biomass Hot Water Boiler

Chinese Excellent Quality 100, 000kcal Biomass Hot Water 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

Over the years, our Waste Heat Boiler, Low Medium and High Voltage Brushless Excitation Generator, Small Condensing Steam Turbine has passed strict market tests and have been recognized by our customers. From the improvement of service quality, we take the purpose of sincerity for customers, and bring professional, safe and satisfactory quality services to our customers. We learn refinement management methodology and analyze the shortcomings of management in depth. We continue to follow the business philosophy of 'Quality, Innovation, Service, Responsibility', uphold the value of 'Achieving Customers, Achieving Employees', and work together with you to create greater glories! Our company has always adhered to the enterprise spirit of 'high quality and efficiency, customer first, striving for priority', and has established a wide range of friendly partnerships with our customers.

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


After years of careful operation, the Chinese Excellent Quality 100, 000kcal Biomass Hot Water Boiler currently distributed by our company is favored by users at home and abroad, and has also obtained good economic and social benefits. The essence of enterprise new product development is to launch new products with different connotation and extension. Relying on modern management, advanced high-tech equipment, superior quality, excellent service, fair price and accurate delivery date, as well as superior information channels and good business capabilities, it has established a near-good reputation among customers. We have gained a good image, won the recognition of our customers, and established long-term and stable contractual relationships with many domestic enterprises.

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