Longitudinal arrangement of water tube boiler barrel, full membrane water wall structure, micro positive pressure combustion. According to the type of products can be divided into hot water, saturated steam and superheated steam boiler. The natural circulation type boiler uses gas and liquid fuel, and is suitable for steelmaking, coke oven gas and other waste gas and liquid fuel. They are equipped with the most modern combustion equipment and automatic control system to ensure the safest and most economical operation of the boiler. This series of boilers can be used from chemical plants, steel mills, thermal power companies, various industrial companies to power plants as starting boilers. Can also be used for heating, production and processing and power generation.
This series of boiler products are similar in design. In the case of superheated steam, part of the convection bundle is replaced by a superheater. Boiler upper and lower drum according to a certain section ratio, consisting of a closed loop including falling pipe, rising pipe, to ensure the boiler in a large range of load changes in water circulation safe and reliable. The boiler is an all-membrane wall design, the outer wall of the furnace and the other walls of the boiler are completely enclosed. It eliminates flue gas leakage, reduces heat loss, improves boiler thermal efficiency, and ensures the stability of the structure, and prevents high and low temperature corrosion.
Because the whole boiler is completely closed, the boiler is suitable for positive pressure combustion, which simplifies the smoke and air system of the whole boiler. Membrane wall structure of natural circulation type boiler can use simple outer boiler jacket and insulation material, reducing the weight of the whole boiler. The cost of boiler construction is reduced, and these simple enclosures can be easily removed to expose all pressurized parts. The entire boiler body is self-supporting and rests on a sturdy steel base. The boiler is fixed at one end, the boiler expands freely after ignition, and the compression components do not produce additional temperature stress, and the components work safely and reliably.
SZS series water tube boiler in order to improve the thermal efficiency of the boiler, in the tail of the boiler body is usually arranged steel tube economizer or steel fin tube economizer. When the feed water temperature is high enough and the exhaust temperature is still high, the air preheater can be installed. All rear heating surfaces are individually assembled for easy transportation and installation. In short, type D boiler has the advantages of small heat storage, fast start-up, large load variation range, short site installation cycle, reliable boiler operation, small maintenance workload, supporting automatic control with a certain degree of flexibility. It is an ideal furnace with medium and small capacity which is widely welcomed by users.
The natural circulation type boiler condenser is installed on the side of the boiler to absorb the waste heat of the flue gas and reduce the exhaust temperature. This series of boilers can be widely used in pharmaceutical, food, daily chemical, tobacco, brewing, papermaking, iron and steel, coking, electric power, universities, hotels, public facilities and other industrial and civil heating. Special composite silicate plate is installed outside membrane type water cooling wall of water pipe boiler, and the furnace external wall temperature is controlled within 40℃, and the color steel plate is hung outside, and the insulation effect is good. Steam boiler adopts natural circulation and adopts large section ratio, water circulation is safe and reliable.