two pass and three pass fire tube boiler
Water wall: located around the furnace, its main task is to absorb the radiation heat in the furnace, to make the water evaporate, it is the main heating surface of modern two pass and three pass fire tube boilers, but also to protect the furnace wall.
Foshan Gaoming Liu Ling Textile Dyeing and Finishing Co., Ltd. was founded in 2007, enterprises comprehensive strength, advanced processing equipment, detection means perfect, has a complete quality assurance system, the introduction into a large number of advanced production equipment, to ensure that technical standards and products stable to improve the quality of laid a solid foundation, enjoy a high reputation in the industry. Liu Ling Gao textile company twice with my company were to buy a 20 tons of steam and a whole 10 tons of steam condensing steam two pass and three pass fire tube boiler fuel gas for the production of textile dyeing and finishing company. Fang fast with strong comprehensive strength and improve the service system to win the favor of the other side, communication from the initial to the final boiler factory-installed square fast all uphold the customer's perspective to think and observe the service concept, for the sake of clever Liu Ling textile companies according to the company's actual demand for textiles, the development of specific programs.
Why the two pass and three pass fire tube boiler can save energy and reduce consumption the design pressure of boiler should be a little higher than the high working pressure, and should not be less than the opening pressure of the safety valve. The design pressure of the gas-phase furnace is 1.2 ~ 1.5 times, the design pressure of the liquid-phase furnace should be 1.05-1.2 times, and the pressure difference between the inlet and outlet of the liquid-phase furnace should be greater than that of 0.15MPa (1.5kgf/cm2). The temperature of boiler inlet and exit should be designed from the point of view of economy and safety, and a suitable temperature difference should be designed for the operation of the system. The temperature difference should be less than 30 ℃. The boiler is a closed-circuit cycle, and the difference between the output temperature and the return temperature is only 2. 30 degrees, which means that the boiler can reach service temperature only by heating a temperature difference of 20 degrees and 30 degrees. Steam boiler is added cold water, heating cold water into steam to heat the hot equipment, steam into 60 degrees 70 degrees condensate discharge. So play the role of saving energy and reducing consumption!
Boiler water circulation 1. theoretical value in the form of warm district heating system, a large flow of a low-temperature radiation heating, heating two pass and three pass fire tube boiler circulating water than conventional radiator heating system should be large, according to cell location and distribution of building floor height parameter, district heating pattern taken by the secondary heat exchanger system, to meet the overall cell mass and the heating effect. 2. The heating system of resistance along the pressure loss, the pressure loss of local resistance and other factors, and equipment to pipelines and fittings specification data calculating determined. When considering circulating pump selection. 3. In the secondary heat exchanger unit circulating pump selection should consider the flow rate, the pipe system resistance and lift the design parameters.