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What is a Pot Shell Type Pot?

 WNS oil/gas fired boiler is a horizontal three-pass internal combustion boiler. This series of boilers uses oil and gas as fuel, which is environmentally friendly, energy-saving, efficient, and highly intelligent. It belongs to the shell boiler. What is a shell boiler? What are its characteristics? I will give you a general introduction today.

Shell boilers are what we usually call fire tube boilers. This kind of boiler has a two-layer jacket structure. In the space, the inner tube is a combustion chamber, and the flue gas flame passes through the inner tube. When the boiler runs to generate pressure, the boiler shell is under internal pressure, and the furnace bladder is under external pressure.



The boiler is a kind of energy conversion equipment. The energy input to the boiler includes chemical energy and electric energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with certain thermal energy. The original meaning of pot refers to a water container heated on a fire, and a furnace refers to a place where fuel is burned. A boiler includes two parts: a pot and a furnace.

The hot water or steam produced in the boiler can directly provide the required heat energy for industrial production and people's lives, and can also be converted into mechanical energy by a steam power device, or converted into electrical energy by a generator. Boilers that provide hot water are called hot water boilers, which are mainly used in daily life, but there are also a few applications in industrial production. The boiler that produces steam is called a steam boiler, often abbreviated as a boiler, and is mostly used in thermal power stations, ships, locomotives, and industrial and mining enterprises.

Features of Shell Boiler

  1. The "pot" that holds the water and the "furnace" that burns the fire are all contained in a shell—the pot shell;
  2. The metal hearth (furnace) has a small volume, is surrounded by water, has a large degree of water cooling, and has poor combustion conditions. It is necessary to burn high-quality fuel;
  3. The heating surface is small, and the evaporation or heating power is small. Water pipes or pyrotechnic tubes are often installed to increase the heating surface and boiler capacity;
  4. The pot shell has a large diameter, many openings, and irregular shapes. The internal heated part and the unheated part are connected together, and the temperature and thermal expansion degree are different, so the safety of the shell is poor;
  5. The boiler structure system is relatively simple, which is convenient for transportation, installation, operation management, inspection and maintenance;
  6. The complete set of shell-type gas boiler equipment includes boiler body, burner, water pump, chimney, water treatment equipment, energy saver, condenser, boiler sub-drum, boiler water sampler, air preheater, etc. Different manufacturers have different product positioning. The matching is different, the actual situation shall prevail.



The above briefly introduces the shell boiler and its characteristics, and I hope it will be helpful to you. If you have any questions, or need to know about boiler prices, technical issues, etc., you can consult online customer service. Zozen Boilers specializes in boiler R&D and production, with advanced production technology and perfect after-sales service system, to provide users with high-quality products and thoughtful service. Welcome to consult and cooperate, and look forward to your visit.

E-mail us: sunhui@zozen.com


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