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3 pass water tube boiler

Introduction: The 3 pass water tube boiler is called a three-pass boiler because the combustion gas generated in the burner will pass through a circuit consisting of three parts before leaving it.

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What is a water tube boiler

The water tube boiler with 3 passes is an industrial boiler with a combustion chamber and heating surface outside the drum, which causes water and steam to flow in the tube. The structure is complicated, and the steam-water system mainly includes drum, header, water wall, convection tube bundle, economizer and superheater, etc. The combustion system mainly includes burner, furnace and flue, air preheater, etc.

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What are the main differences between water tube boiler and fire tube boiler?

1. The water tube boiler has a wide range of pressure adaptation, which can break through the pressure limit and meet the steam supply requirements of more than 2.5MPa. The fire tube boiler is limited by the material wall thickness and pressure, and is used under the pressure of 2.5MPa.

2. The water tube boiler of three passes can be a large-scale boiler, and the water-tube structure is usually used for boiler capacity above 35t/h. The fire tube boiler has the characteristics of compact structure. Under the same output, its appearance and equipment weight are lower than those of the water tube boiler.

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It is found that the fire-tube boiler and water-tube boiler have their own advantages and disadvantages, and each enterprise should choose the appropriate boiler type according to the actual demand of its own production line, such as steam demand, reasonable boiler room area, boiler operation cost and maintenance simplicity, etc.

Boiler for the textile industry
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Textile refers to a multi-scale structural processing technique of a fiber or fiber assembly, it includes many steam consuming sections including dyeing, drying, slashing, printing, pressing etc.., all of which needs steam from boilers. With the increase in the demand for textiles, the steam consumption of textile factories is also increasing. Whether building a new textile factory or rebuilding and expanding a textile factory are faced with the problem of boiler selection. Except for steam demanding, textile plants also need higher temperature heat source for printing, dyeing and hot-pressing sections, where thermal oil heaters will be used to heat the thermal oil to above 300°C high temperature, after the thermal oil are used for heat consuming machines, it will come back to boiler for circulating using. So, steam boiler and thermal oil heater combination is commonly used in textile plants, ZOZEN already provided completed solutions for over 50 customers.

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ZOZEN 3 pass water tube boiler

As the leader of industrial boiler manufacturers, ZOZEN Boiler always insists on providing tailor-made boiler system services for users. The fire-tube boilers and water-tube boilers produced by ZOZEN are widely used in all walks of life around the world. If you have more questions about 3 pass water tube boiler, please contact our customer service team.

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