0.7mw 1.4mw 2.8mw 5.6mw 7mw chain grate coal burning hot water boiler

DZL1.4-0.7/95/70-AII:

"D"-single drum                            "Z"-horizontal type                     "L"-chain grate

"1.4"-Thermal power 1.4mw         "0.7"-pressure 0.7MPa              "95"- Outlet water temperature

"70"- Return water temperature   "A"-Coal

Boiler picture:

Structural drawing:

1.  Three pass design

Better thermal efficiency than ordinary boilers, longer smoke path and higher effective utilization rate of high-temperature smoke;

2.  Water tube & Fire tube combination boiler

Combined advantages of pure fire tube and pure water tube boiler;

Water tube--- Placed around furnace, absorb combustion heat, no dust;

Fire tube---Placed in the drum, from front tube sheet to back tube plate, fully absorb the third pass heat;

3.  Spirally corrugated tube

Instead of ordinary smooth tube, enhance thermal disturbance, reduce heat

4.  Convex tube sheet

Arc-shaped plate design compared to flat plate, cancel tension diagonal, avoid tube plate cracking;

5.  Wing shape flue

Located both side of the furnace, the second pass, reduce thermal load in boiler bottom, avoid tube plate cracking. 

6. Injection Tube

Function: Improve flow speed of water cooled wall to prevent subcooled boiling.

Purpose: Prevent tube explosion, and increase the reliability of water circulation. 

Boiler parameters:

Boiler detailed list:    

Henan Yuanda Boiler Co., Ltd., establish in 1956, as a industrial leader, we specialized in industrial boilers:

Type: steam boiler and hot water boiler

Capacity:  0.5-30 ton per hour(steam boiler)

0.7-29 mw(hot water boiler)

Pressure: 0-2.5 MPa

Fuel: coal, biomass, gas and oil

Nearly 60 years development and innovation, we accumulated a wealth of experiences, and we are cooperating with many universities and Boiler Research Institutes, such as Jiaotong University and Zhiguang Boiler Institute. And for so many years our product positioning: 0.5-30 ton industrial boilers.

So far we have exported to more than 50 countries, and enjoy prestige at home and abroad.

Welcome to visit our company!

We have rich successful export experiences for more than 10 years, and a full service will be provided:

Two Year Warranty and Full Life service:

Within two years, any fault caused by non-artificial reason we should maintain it freely. And Accessories & Components will be provide at any time.

Installation and Commissioning:

Henan Yuanda Boiler Co., Ltd. provides completed installation drawing and manual, and we shall provide one or two engineers to supervise the installation and the commissioning of the boiler for 10-15days if necessary.

Documents will be provided:

1.    General drawing(lay-out)
2.    Ontology (Pressure parts miscellaneous)
3.    Piping and instrumentation diagram
4.    Installation instructions
5.    Pressure parts strength calculation summary table
6.    Certificate of quality
7.    Supervised certification

60 Years Experience, Quality Guarantee

Solid Durable, 3 years longer than general boilers

Good Business Credit, AAA Certificate of Grade

Customer Fieldwork Available

Shorter Delivery Time, at least 5 days ahead

Energy Conservation and Environment Protection Technology

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