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Water tube hot water boiler is a D type water tube oil & gas fired hot water boiler and water tube hot water boiler consists of mainly two drums, one is upper drum called steam drum and the other is lower drum called mud drum. These upper drum and lower drum are connected with two tubes namely down-comer and riser tubes. ZG Boiler is an industrial boiler manufacturer in China with more than 70 years’ history and we can supply customers water tube hot water boiler to meet customers’ demand.
Water Tube Hot Water Boiler Parameters
Model: SZS17.5-1.6/130/70-Y、Q, SZS58-1.6/130/70-Y、Q
Rated Thermal Power: 17.5 MW, 58 MW
Rated Outlet Water Pressure: 16 bar
Outlet Water Temperature: 130℃
Return Water Temperature: 70℃
Fuel: heavy oil, light oil, blast furnace gas, natural gas, biogas, coke oven gas, exhaust gas, etc.
How Does Water Tube Hot Water Boiler Work?
Water in the lower drum and in the riser connected to it, is heated and steam is produced in them which comes to the upper drums naturally. In the upper drum the steam is separated from water naturally and stored above the water surface. The colder water is fed from feed water inlet at upper drum and as this water is heavier than the hotter water of lower drum and that in the riser, the colder water push the hotter water upwards through the riser. So there is one convectional flow of water in the boiler system.
More and more steam is produced the pressure of the closed system increases which obstructs this convectional flow of water and hence rate production of steam becomes slower proportionately. Again if the steam is taken trough steam outlet, the pressure inside the system falls and consequently the convectional flow of water becomes faster which result in faster steam production rate. In this way the water tube boiler can control its own pressure.
Water Tube Hot Water Boiler Application
Water tube hot water boiler is widely applied to central heating in school, hospital, commercial apartment, bath room, hotel, greenhouse and other places where need hot water to central heating or district heating.
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