We have reached cooperative relationships with more than 10,000 customers in more than 130 countries and regions, providing them with complete solutions and services.
We have reached cooperative relationships with more than 10,000 customers in more than 130 countries and regions, providing them with complete solutions and services.
TunisiaHot water boiler
After fully understanding the construction period and actual personnel of the project, DABONN technicians customized two vacuum hot water boilers (ZWNSL0.7-1/G-Q) with a power output of 0.7MW for each.
The cooperator with DABONN is China's engineering assistance project in Tunisia. It is mainly for road construction in Tunisia. Hot water boilers are needed to provide heating and sanitary use for the workers.
After fully understanding the construction period and actual personnel of the project, DABONN technicians customized two vacuum hot water boilers (ZWNSL0.7-1/G-Q) with a power output of 0.7MW for each.
The two vacuum hot water boilers customized for our project have provided great help to the lives of our workers after they are put into use. Moreover, I was very impressed by the professional service of DABONN from pre-sales to after-sales to us.
Minnie Zhong
This type of hot water boiler maintains a vacuum negative pressure operating environment, and there is no risk of outward explosion, and the safety factor is extremely high.
In the design structure, the boiler cooling water flows outside the heat transfer tube, the circulation state is excellent, it is not easy to scale, and convenient for cleaning in the future.
The boiler adopts a universal standard pipe box, which can adapt to different operating modes such as single and double circuits, and big and small temperature differences. What’s more, it is more flexible.
As a high-end natural gas boiler product, the fully premixed low-nitrogen condensing boiler has been recognized by the industry for its safety, stability, excellent performance and quality. Professional system integration technical support capabilities can provide customers with professional and tailor-made system designs for different business types, providing customers with integrated solutions from heat source to terminal, from heating to hot water supply, from automatic control to the entire network. The comprehensive energy saving rate can reach 30%.
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This series of boilers is a vertical structure. It uses advanced condensation technology to achieve condensation without a economizer. The overall footprint is only 1.4m³, and the exhaust temperature is as low as 50°C. It can continuously deliver hot water to schools, shopping malls, hotels, offices and other places.
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In the water supply process of industrial boilers, the main principle of using softened water is to use ion exchange resin to exchange iron, magnesium, and calcium ions contained in water as sodium ions. Specifically, when the content of dissolved solids and various ions in tap water is known, the content of dissolved solids in demineralized water can be calculated simply by converting various ions in the liquid into sodium ions.
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Also known as a low-ribbed tube, it mainly depends on the outer ribbing of the tube (ribing coefficient is 2-3) to expand the heat transfer area. The use of threaded tubes in boiler equipment can increase the heat transfer area by more than 1 times; and the surface tension inside the tube is strong, which also has a good strengthening effect on condensation and boiling outside the tube. Compared with the traditional smooth tube, it has the advantages of high heat transfer efficiency, not easy to scale, small size, and material saving.
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Based on the principles of thermodynamics and heat transfer, the burner is closely matched with the boiler to achieve the optimum ratio. Moreover, on the basis of traditional vertical hot water boilers, an integrated solution for waste heat utilization is added. The exhaust gas temperature is as low as 90℃, and the thermal efficiency is as high as 95%-96%. The efficiency of the boilers is maximized.
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The water tank is generally composed of a water inlet pipe, water outlet pipe (domestic water outlet pipe, fire water outlet pipe), overflow pipe, drainage pipe, and other pipes. To measure the quality of the water tank, it depends on how the welding technology is. Welding materials should comply with the current standards "Carbon Structural Steel" and "Carbon Steel Welding Rod"; butt welding is used for splicing steel plates, and other welding is fillet welds. Strengthen the coincidence.
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This series of boilers adopts a downstream, three-pass and shell design to ensure that the fuel is fully combusted in a large combustion chamber, and fuel utilization and boiler efficiency are greatly improved.
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The deep matched technology of new combustion and heat transfer no longer sacrifices the boiler's key characteristics (heat transfer system) to adapt to the burner characteristics (combustion system), making the gas boiler a complete thermal system with low nitrogen emissions. At the same time of obtaining low nitrogen emission, the utilization efficiency of the boiler is further improved.
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