Zhangjiagang HuaDong Boiler Co., Ltd.
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 800 Tons / Month |
| Delivery Time | 60 Days |
| Packaging Details | Steel Frame |
| Material of Tube | SA106 Gr. B and SA192M |
| Product Name | Rear Wall & Evaporator |
| Standard | ASME |
| Application | Sugar Mill and Power Plant Boilers |
| Keyword | Evaporator Coils and Serpentine Coils |
| Material of Fin | Q235B |
| Brand Name | HD BOILER |
| Model Number | Rear Wall Evaporator |
| Certification | ISO9001 , SGS , TUV , ASME , EN |
| Place of Origin | Zhangjiagang,China |
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 800 Tons / Month |
| Delivery Time | 60 Days | Packaging Details | Steel Frame |
| Material of Tube | SA106 Gr. B and SA192M | Product Name | Rear Wall & Evaporator |
| Standard | ASME | Application | Sugar Mill and Power Plant Boilers |
| Keyword | Evaporator Coils and Serpentine Coils | Material of Fin | Q235B |
| Brand Name | HD BOILER | Model Number | Rear Wall Evaporator |
| Certification | ISO9001 , SGS , TUV , ASME , EN | Place of Origin | Zhangjiagang,China |
| High Light | Firm Structure Superheater Coil ，SA106 GrB superheater Coil ，Rear Wall superheater tube | ||
SA106 Gr. B Heat Resistant Firm Structure Superheater Coil ASME Standard
Introduction
Superheaters and reheaters are important parts for the heating surfaces, used to increase steam temperature, aiming to improve steam enthalpy and further to increase the thermal circulation efficiency for power station.
Superheaters work to heat surnatured steam to superheated steam with a certain tempetature. When boiler loads or other working conditions change, it is necessary to make sure superheated steam temperature to be normal, and within allowable range of temperature variation.
From the thermal circulation in power station, the original parameters of pressure and temperature is higher, the thermal efficiency of circulation is better, or the steam humidity of the steam turbine rear is too high, influencing its safety. While the superheaer steam temperature is limited by metal materials, at present, due to limitation of metal materials, superheated temperature for most power station boilers are still within the range of 540-555 dgrees, and to avoid the steam humidity of blade of steam turbine rear too big, thus middle reheating system is applied.
For over 30 years, Hua Dong Boiler has been consistently innovating and improving our boiler spare parts. The improvements in bending, welding and design ensure our products meet both European and American standards, ensuring a reliable performance.
Serpentine tube is a tube that twists and turns several times in a plane.The convection heating surface of the boiler, such as economizer, superheater and reheater, adopts the structure of serpentine tube through the belt, with horizontal and vertical layout.
1. Material composition: It is made up of snake-like tubes (carbon steel, alloy steel or heat-resistant steel, etc.) and collection boxes and other supporting material. Tubes generally have 32, 38, 42 or other types of specifications, according to user's needs separately.
2. Arrangement: vertical or horizontal layout.
3. Features: beautiful appearance, size, accuracy, first-class bending and welding technology, first-class detection equipment.
Superheater
Fossil fuel power plants often have a superheater section in the steam generating furnace.The steam passes through drying equipment inside the steam drum on to the superheater, a set of tubes in the furnace. Here the steam picks up more energy from hot flue gases outside the tubing, and its temperature is now superheated above the saturation temperature.
Reheater
Power plant furnaces may have a reheater section containing tubes heated by hot flue gases outside the tubes. Exhaust steam from the high-pressure turbine is passed through these heated tubes to collect more energy before driving the intermediate and then low-pressure turbines.
| Type | Advantages | Disadvantages | Supporting method |
| Pendant-type | 1.Firm structural support | 1. Flow blockage by condensed steam 2. Needs slow restart to purge the water that accumulates in the bottom. | supported from above |
| Inverted-type | 1.Proper drainage of the condensed steam | 1. Lack the structural rigidity, especially in high speed gas flow | Supported from below |
| Horizontal -type | 1. Proper drainage 2. Good structural rigidity | 1. They do not view the flam directly so they are mainly from the convective type | Usually supported in the vertical gas ducts parallel to the main furnace. |
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
1985
Total Annual:
100,000,000-120,000,000
Employee Number:
1000~1100
Ecer Certification：
Verified Supplier
Hua Dong Boiler Co., Ltd. is a high-tech enterprise specialized in manufacturing boilers. Established in early 1985s, has two manufacturing bases, this company covers 400,000㎡ with fixed assets amounting to USD 110,000,000. There are 1100 employees including 150 technicians and 600 coded welders. ... Hua Dong Boiler Co., Ltd. is a high-tech enterprise specialized in manufacturing boilers. Established in early 1985s, has two manufacturing bases, this company covers 400,000㎡ with fixed assets amounting to USD 110,000,000. There are 1100 employees including 150 technicians and 600 coded welders. ...
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