The main advantages and treatment methods of boiler spraying

       1. Beautiful appearance and unique style. The boiler shell is pearl milky white, durable, and will never fade after continuous high temperature baking glaze treatment. Snap-on design, easy maintenance.



2. The output power is suitable for domestic small villas. Pages DK series is divided into 30KW and 45KW two specifications. Suitable for most villa types.





3. System configuration The boiler is divided into two systems: heating system and sanitary hot water system. Equipped with two centrifugal pumps and two expansion tanks respectively. The heating system expansion tank is 12L, and the sanitary hot water system software expansion tank is 4L. The two centrifugal pumps are the circulating water pump of the heating system and the software circulating water pump of the heat exchange system.





4. The water production boiler is equipped with a hot water exchange tank with built-in sanitary hot water, with a capacity of 130 liters and an operating pressure of up to 9 kg. When the temperature difference is 25 degrees, the water output of the 30KW boiler in the first 10 minutes is 469 liters, and the water output of the 45KW boiler in the first 10 minutes is 544 liters, which can meet the requirements of multiple toilets and bathing pools at the same time. Stainless steel plate burner, environmentally friendly and low nitrogen.





5. Safe built-in stainless steel plate cylinder burner. The large heat dissipation surface of the burner can effectively reduce the ambient temperature of boiler combustion and ignition, and the emission of nitrogen oxides is low, leading the global trend of promoting low nitrogen emission in the global HVAC industry. Ambient premixed ignition with special ignition tube. Start a small fire first, and then start a big fire, so that the ignition is more reliable and safe, eliminates the resistance, and avoids deflagration. Standard 2KPa civil natural gas, no need for medium pressure natural gas pipelines, saving the cost of starting gas. After replacing the nozzle and igniter, it can also be used for liquefied petroleum gas of stone crude oil.





6. Easy to install, easy to reinstall, quiet operation. The overall dimensions of the boiler are: height 1345mm * width 500mm * thickness 950mm. It occupies a small space, does not require a dedicated room, and can be re-installed in corners such as indoor stairs, closed balconies, garages, etc. , easy to install. Atmospheric combustion parking spaces, etc. , and easy to reinstall. Ambient ignition, low operating noise. What do you think of boiler spraying?

 In order for the coating to bond well with the substrate, the surface layer of the board must be clean and rough. There are many ways to clean and roughen surface layers. The choice of the method depends on the design requirements of the coating and the material, appearance, thickness of the board, the original condition of the surface layer and the construction conditions. The purpose of the cleaning treatment is to remove all stains on the surface of the workpiece, such as scale, oil stains, paint and other dirt. The key is to remove the surface of the workpiece and the grease that has penetrated into it. The cleaning treatment methods include organic solvent cleaning, steam cleaning, alkali cleaning, heating degreasing, etc. The purpose of roughening is to improve the surface between the coating and the sheet, increase the mechanical bite force between the coating and the sheet, and make the surface after cleaning more active, thereby improving the fusion strength of the coating and the sheet. The roughening of the surface also changes the distribution of internal stress within the coating, which is also beneficial to improve the fusion strength of the coating. Methods of roughening include sandblasting and machining manufacturing methods such as threading and knurling.

Spraying technology is a common roughening method. Common spraying media include alumina, silicon carbide, and chilled cast iron. When spraying, the type and particle size of the sandblasting medium and the wind pressure during spraying should be reasonably selected according to the hardness of the workpiece material, the appearance and size of the workpiece, etc.