Zhangjiagang HuaDong Boiler Co., Ltd.
| Type | Natural Circulation |
| Structure | fire tube and water tube |
| Pressure | Low / High Pressure |
| Steam production | Max. 20t/h |
| Style | VERTICAL |
| Fuel | Coal / Gas / Coal-fired / Water Heat |
| Output | Hot Water / Steam |
| Surface Treatment | Painted |
| Material | Alloy steel, Carbon steel, SA210C, SA213T22 |
| Material standard | ASTM, EN or ISO |
| Weight range | 10 ton to 1000 ton |
| Smelting Process | EF+LF + VD |
| Process | Material->Ingot->Hot/Cold-Rolling->Heat treatment->Inspection->rough machining->UT->2nd Heat treatment->finishing machining->Inspection |
| UT standard | ASTM A388 or EN10228 |
| Heat treatment | Normalizing + tempering |
| Place of Origin | Zhangjiagang,China |
| Brand Name | HD Boiler |
| Certification | ISO,ASME,EN,TUV |
| Model Number | Economizer |
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Product Specification
| Type | Natural Circulation | Structure | fire tube and water tube |
| Pressure | Low / High Pressure | Steam production | Max. 20t/h |
| Style | VERTICAL | Fuel | Coal / Gas / Coal-fired / Water Heat |
| Output | Hot Water / Steam | Surface Treatment | Painted |
| Material | Alloy steel, Carbon steel, SA210C, SA213T22 | Material standard | ASTM, EN or ISO |
| Weight range | 10 ton to 1000 ton | Smelting Process | EF+LF + VD |
| Process | Material->Ingot->Hot/Cold-Rolling->Heat treatment->Inspection->rough machining->UT->2nd Heat treatment->finishing machining->Inspection | UT standard | ASTM A388 or EN10228 |
| Heat treatment | Normalizing + tempering | Place of Origin | Zhangjiagang,China |
| Brand Name | HD Boiler | Certification | ISO,ASME,EN,TUV |
| Model Number | Economizer | ||
| High Light | High Safety Level Boiler Economizer ，Natural Circulation Waste Heat Boiler ，Customized Dimension Economizer | ||
Introduction
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. We can manufacture three types of boiler economizer, bare tube economizer, H finned tube economizer and spiral finned tube economizer. H-finned tube economizer is high efficient heat exchanger economizer which is consisted of H-finned tubes.
Compared with bare tube economizer, H-finned tube economizer can enlarge the heat exchange area and reduce the number of tubes. It also can increase the flue gas flow area in order to reduce the flue gas flow speed and abrasion.
H-finned tube can be made as double H finned tubes , with high rigidness to fit long tube row.
The spiral finned economizer is a newly designed heat transfer equipment, consists of spiral fin tubes to overcome the serious abrasion and short service time.
Function
The function of the economizer is as its name implies, to “economize” or save on cooling costs. Obviously, it costs money to operate the compressor. If the compressor can be shut down and the system still provide adequate cooling, energy savings can be realized.
Specifications
| Description | Boiler economizer |
| Material | Alloy steel, Carbon steel, SA210C ,SA213T22, etc. |
| Material standard | ASTM, EN or ISO etc. |
| Dimension | Customization |
| Weight | Min: 10 ton Max.:1000 ton |
| Smelting Process: | EF+LF + VD |
| Process | Material→Ingot → Hot/Cold-Rolling→ Heat treatment (Normalizing+ tempering) → Inspection →rough machining→UT →2nd Heat treatment →finishing machining →Inspection |
| UT standard | ASTM A388 or EN10228, etc |
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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