Zhangjiagang HuaDong Boiler Co., Ltd.
| Payment Terms | L/C, T/T, Western Union, MoneyGram |
| Supply Ability | 1500 Tons / Month |
| Delivery Time | 50 ~ 100 Days |
| Packaging Details | Seaworthy packing |
| Fuel | Coal |
| Type | Energy Saving |
| Size | Customized |
| Usage | Industry |
| Surface Treatment | Painted |
| Pressure | Low / High |
| Structure | Fire / Water Tube |
| Manufacturing Level | A |
| Brand Name | HD BOILER |
| Model Number | Heating area |
| Certification | ISO9001 , SGS , TUV , ASME , EN |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T, Western Union, MoneyGram | Supply Ability | 1500 Tons / Month |
| Delivery Time | 50 ~ 100 Days | Packaging Details | Seaworthy packing |
| Fuel | Coal | Type | Energy Saving |
| Size | Customized | Usage | Industry |
| Surface Treatment | Painted | Pressure | Low / High |
| Structure | Fire / Water Tube | Manufacturing Level | A |
| Brand Name | HD BOILER | Model Number | Heating area |
| Certification | ISO9001 , SGS , TUV , ASME , EN | Place of Origin | China |
| High Light | superheater in boiler ， reheater in power plant | ||
Description
The function of Super heater in the thermal power plant is to remove the last traces of moisture from the saturated steam coming out of boiler and to increase its temperature above saturation temperature as per requirement at inlet of steam turbine.
Details
• Superheating raises overall efficiency as well as avoids too much condensation in last stages of turbine which avoids blade erosion.
• The heat of combustion gases from furnace is utilised for removal of moisture from steam and to superheat the steam.
• Super-heaters ususlly have several tube circuits in parallel with one or more return bends,connected between headers.
• Heat from the hot gases to the vapour in the surperheater is transferred at high temperatures.
• Therefore promary section of superheater is arranged in counterflow and secondary section in parallel flow to reduce the temp.stressing of the tube wall.
Principle
• Principle of superheater is similar to steam generating tubes of boiler.
• The hot gases at high temperature sweep over superheater tubes and raise the temperature of steam which magnitude depends upon exit gas temperature leaving the superheater and gas velocity.
Differences
| 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 Introduction
Established in 1985,Zhangjiagang Hua Dong Boiler Co.,Ltd.(trading as HD Boiler),produces power plant; industrial; waste heat; waste incineration; biomass; organic heat carrier and electric steam boilers. Coupled with a comprehensive range of heating surfaces, HD Boiler brings to the market a unique service including boiler design , fabrication, installation, maintenance and replacement of boiler pressure parts.
1. Fabrication area of 200,000 square meters
2. 150 Engineers
3. 600 Coded welders
4. 60 Licensed Inspectors(NDT Level-III instructors)
5. Class-A Licenses for Design and Manufacture Boiler
6. ISO 9001:2008 Quality System
7. ASME Certificate of Power Boilers
8. ASME 'S','U' and NB stamp authorization
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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