DHL系列角管式水管锅炉是我国通过联合国GEF项目、从丹麦沃伦公司引进的一种新颖结构的锅炉，是在四角上布置有不受热的下降管且有自支撑作用、锅筒一般布置成炉前横置式或单锅筒型的一种水管锅炉的商业名称。
我公司通过与西安交通大学联合设计及独立开发，已掌握该炉型的基本原理，产品性能和制造工艺，结合我国燃煤特性，不断消化吸收、改进研究和开发，已经形成了具有我公司特色的角管式蒸汽锅炉系列产品和角管式热水锅炉系列产品，目前，江苏四方锅炉有限公司制造的该型锅炉已遍布全国各地。
角管锅炉采用模式壁结构，既可减少漏风，又能采用轻型敷管炉墙，不用笨重的耐火和保温砖墙，蓄热量小，时间短。
角管锅炉采用独特的水循环结构，an全可靠。角管锅炉为自支撑结构，无钢架，抗震性能好。角管锅炉采用正转横梁式链条炉排结构，等压统仓送风，适用宽煤种设计。
角管锅炉热效率高，负荷调节范围广，运行成本低，且故障率低，能长期无故障运行。
角管锅炉安装工作 量少，安装周期短，且占地面积小，工建成本低。
角管式锅炉作为我国燃煤链条锅炉的更新换代产品，以其优异的先进节能特性，已成为我公司参与市场竞争的拳头产品。
DHL series of corner pipe water boiler is our country through the United Nations GEF project, introduced from Warren, Denmark, a novel structure of the boiler, is arranged in the four corners of the pipe is not heated down and self-supporting function, the drum is generally arranged A commercial name for a water tube boiler with a horizontal or single drum type.
Through joint design and independent development with Xi'an Jiaotong University, our company has fully mastered the basic principle, product performance and manufacturing process of the furnace, combined with the characteristics of coal burning in our country, constantly digest and absorb, improve research and development, has formed a company with my company Characteristics of the angle tube steam boiler products and the angle of the tube hot water boiler products, at present, Jiangsu Sifang Boiler Co., Ltd. to create the boiler has been throughout the country.
Corner tube boiler wall mode, can reduce air leakage, but also the use of lightweight pipe wall furnace, without bulky fire and insulation brick wall, heat storage is small, time is short.
Corner tube boiler uses a unique water cycle structure, safe and reliable. Corner tube boiler self-supporting structure, no steel frame, good seismic performance. The angle tube boiler adopts the structure of the forward crossbeam chain grate, and the isobaric pressure blows air for wide coal type design.
Corner tube boiler has high thermal efficiency, wide range of load regulation, low operation cost and extremely low failure rate, which can run long-term trouble-free.
Corner tube boiler installation work less, the installation cycle is short, and covers an area of small, low cost of construction.
As the replacement of coal-fired chain boiler in our country, the corner-tube boiler has become the fist product of our company participating in the market competition with its excellent advanced energy-saving features.
