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.
This series of boilers mainly use condensing technology to recover the residual heat of flue gas, making full use of the sensible heat and latent heat of flue gas. The boiler absorbs a large amount of heat again, so the exhaust gas temperature is only 50 °C, and the thermal efficiency can be increased by more than 10%, which can save at least 4% of fuel input.
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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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The boiler water is only used as a heat carrier. During operation, the oxygen in the water is heated and precipitated. It is discharged out of the furnace. Oxygen corrosion will not occur in the furnace for long-term use. When the heat medium water is added at one time, a limited amount of calcium and magnesium ions are also heated and softened. The furnace water does not increase or decrease during operation, so no scaling occurs inside the boiler, which prolongs the operation. The service life of the boiler is 1.5 to 2 times that of ordinary boilers.
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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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Circulating water pump refers to the circulating liquid pump for conveying reaction, absorption, separation, and absorption liquid regeneration in boiler equipment. Its head is low, and it is only used to overcome the pressure reduction of the circulation system, and a low-lift pump can be used. The flow rate of the circulating water pump is medium, and under stable working conditions, the flow rate of the pump changes relatively little. Its head is small and low, and it is only used to overcome the pressure drop of the circulatory system. Low-lift pumps can be used.
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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 boiler is divided into heating type, dual-purpose type, warm water type (galvanized), and stainless steel liner type. The furnace body design is optimized, with large heating area, high thermal efficiency, fast heating and sufficient hot water supply. Equipped with high-quality burners, the fuel is fully burned and the noise is low.
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The WDR electric pressure hot water boiler has a shell-type structure. A stainless steel heating tube is installed on the wall of the shell. Electric energy is converted into heat energy through the electric heating tube. The boiler has a compact structure, small size, flexible layout, and easy installation.
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