Water tube boiler in Singapore

Water tube boiler in Singapore has a large demand. Most of Singapore industry buy oil gas water tube boiler, some buy biomass fired boiler. The opposite boilers structure are firetube boilers.Today, we mainly talking about water tube boiler design in Singapore market.3nSHorizontal boiler

Water-tube Boilers design type in Singapore market:

Description of water tube boilers including operation, types and benefits; also, a brief synopsis on how they are applied to combined heat and power generation.3nSHorizontal boiler

Water tube boiler design

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water tube boiler design in Singapore3nSHorizontal boiler
3nSHorizontal boiler
Water-tube boiler design3nSHorizontal boiler

Water-tube boilers differ from shell type boilers in that the water is circulated inside the tubes, with the heat source surrounding them. Referring back to the equation for hoop stress (Equation 3.2.1), it is easy to see that because the tube diameter is significantly smaller, much higher pressures can be tolerated for the same stress.3nSHorizontal boiler
3nSHorizontal boiler
Water-tube boilers are used in power station applications that require:3nSHorizontal boiler
A high steam output (up to 500 kg/s).3nSHorizontal boiler
High pressure steam (up to 160 bar).3nSHorizontal boiler
Superheated steam (up to 550°C).3nSHorizontal boiler
However, water-tube boilers are also manufactured in sizes to compete with shell boilers.3nSHorizontal boiler
3nSHorizontal boiler
Small water-tube boilers may be manufactured and assembled into a single unit, just like packaged shell boilers, whereas large units are usually manufactured in sections for assembly on site.3nSHorizontal boiler
3nSHorizontal boiler
Many water-tube boilers operate on the principle of natural water circulation (also known as 'thermosiphoning'). This is a subject that is worth covering before looking at the different types of water-tube boilers that are available. Below Figure helps to explain this principle:3nSHorizontal boiler

Natural water circulation in a water-tube boiler3nSHorizontal boiler
Natural water circulation in a water-tube boiler3nSHorizontal boiler

Cooler feedwater is introduced into the steam drum behind a baffle where, because the density of the cold water is greater, it descends in the 'downcomer' towards the lower or 'mud' drum, displacing the warmer water up into the front tubes.3nSHorizontal boiler
Continued heating creates steam bubbles in the front tubes, which are naturally separated from the hot water in the steam drum, and are taken off.3nSHorizontal boiler
However, when the pressure in the water-tube boiler is increased, the difference between the densities of the water and saturated steam falls, consequently less circulation occurs. To keep the same level of steam output at higher design pressures, the distance between the lower drum and the steam drum must be increased, or some means of forced circulation must be introduced.3nSHorizontal boiler
 3nSHorizontal boiler
Today, we introduced our water tube boiler, next time we will talk about water tube boiler sections. More information about water tube boiler in Singapore, contact us with: [email protected] Or leave message below:3nSHorizontal boiler

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