Zhangjiagang HuaDong Boiler Co., Ltd.
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 500 Tons per month |
| Delivery Time | 60 days |
| Packaging Details | Seaworthy Packing |
| Material | Carbon steel / Alloy steel |
| Painting | Red / Blue / Grey /Blue |
| Standard | ASME Standard or GB |
| Dimension | Customized |
| Sales Location | Middle East |
| Type | Natural circulation |
| Brand Name | HD Boiler |
| Model Number | H-type |
| Certification | ISO9001 , SGS , TUV , ASME , EN |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 500 Tons per month |
| Delivery Time | 60 days | Packaging Details | Seaworthy Packing |
| Material | Carbon steel / Alloy steel | Painting | Red / Blue / Grey /Blue |
| Standard | ASME Standard or GB | Dimension | Customized |
| Sales Location | Middle East | Type | Natural circulation |
| Brand Name | HD Boiler | Model Number | H-type |
| Certification | ISO9001 , SGS , TUV , ASME , EN | Place of Origin | China |
| High Light | spiral fin tube ，heat exchanger fin tube | ||
Boiler finned tube painted red exported middle east area high efficiency ASME standard third party inspection
Introduction
1. Economiser performs a key function in providing high overall boiler thermal efficiency by recovering the low level energy from the flue gas before it is exhausted to the atmosphere.
2. Economiser recovers the energy by heating the boiler feedwater.
3. Economiser are basically tubular heat transfer surfaces used to preheat boiler feed water before it enters the steam drum or furnace surfaces.
4. Economiser reduces operating costs or economise on fuel by recovering extra energy from the flue gas.
5. Boiler economizers are heat exchange devices with finned tubes that heat a liquid, sometimes water, up to however sometimes doesn't exceed the boiling purpose of liquid.
6. We can manufacture three types of boiler economizer, bare tube economzier, H finned tube economzier and spiral finned tube economzier.
Procedure
| 1 | Economisers also reduce the potential of thermal shock and strong water temperature fluctuations as the feed water enters the drum or waterwalls. |
| 2 | Increasingly stringent environmental regulations limiting nitrogen oxides and sulfur dioxide emission can also affect economizer design. |
| 3 | The gas-side heat transfer coefficient is much less than water side heat transfer coefficient. To compensate this, outer surface of the tubes may be finned to increase the surface area of heat transfer. |
| 4 | The ultimate goal of economizer design is to achieve the necessary heat transfer at minimum cost. |
| 5 | A key design criterion for economizer is maximum allowable flue gas velocity. Higher velocity provide better heat transfer and reduce capital cost. |
| Name(unit) | Specification(mm) |
| Bare pipe(OD) | 25-1650 |
| Bare pipe(Thickness) | 2-40 |
| Fin (Thickness) | 0.6-3.0 |
| Fin (Height) | 5-30 |
| Fin tube thread pitch | 5-30 |
| Fin tube length | ≤12000 |
Material:Carbon Steel,Alloy,Austenitic Steel(Nickel and Chromium or Manganese)
Quality Control
| 1 | Impact test and Strength calculation report with applied materials information. |
| 2 | 100%NDT(non-destructive inspection) report of steel plate, tube and electrode. |
| 3 | X-ray, γ-ray and liquid penetrant test inspection report (welding seam): to ensure the quality of the entire boiler. |
| 4 | Hydraulic test report: ensure the standard working pressure and safety. |
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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