Where are bellows suitable?

Applying bellows heat exchanger to natural circulation hot water boiler and transforming hot water boiler into low pressure (0~0.3MPa) steam boiler is an effective measure to solve oxygen corrosion, scaling and tube explosion of hot water boiler, which can not be done by conventional water treatment methods, and is of great significance to saving initial investment and operating costs. Because it is a patented product, only one boiler factory in Changchun installed stainless steel bellows heat exchanger in hot water boiler. Taking a 4.2MW hot water boiler as an example, the difference between installing and not installing bellows heat exchanger is only 20 thousand yuan. The competitive advantage of this product is very obvious, and it has won unanimous praise from professionals and users. Bellows heat exchanger usually adopts a set of stainless steel bowen tubes of 32 x0.8 USD, which are connected in parallel and in series according to the length and volume of the boiler. Its cross-sectional area is determined by the circulating water quantity of the external network and the number of parallel boilers, so as to ensure that the water velocity in the corrugated pipe is 2~3m/s, and the total resistance of the water flowing through the corrugated pipe is about 40~ 60kPa(4~6m water column), which is equivalent to the resistance of the original hot water boiler. The length of corrugated pipe bundle or its surface area is determined by thermal calculation to ensure the output of the original hot water boiler.