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Boiler Heat Exchanger , Boiler Spiral Fin Tube Economizer ,Economizer Module in ASME Standard

Boiler Heat Exchanger , Boiler Spiral Fin Tube Economizer ,Economizer Module in ASME Standard

  • Boiler Heat Exchanger , Boiler Spiral Fin Tube Economizer ,Economizer Module in ASME Standard
  • Boiler Heat Exchanger , Boiler Spiral Fin Tube Economizer ,Economizer Module in ASME Standard
  • Boiler Heat Exchanger , Boiler Spiral Fin Tube Economizer ,Economizer Module in ASME Standard
  • Boiler Heat Exchanger , Boiler Spiral Fin Tube Economizer ,Economizer Module in ASME Standard
Boiler Heat Exchanger , Boiler Spiral Fin Tube Economizer ,Economizer Module in ASME Standard
Product Details:
Place of Origin: China
Brand Name: HD BOILER
Certification: ISO9001,ASME,Grade A,SGS,EN
Model Number: Economizer
Payment & Shipping Terms:
Minimum Order Quantity: 1 Set/Sets 10tons
Price: Negotiable
Packaging Details: Seaworthy Packing
Delivery Time: 30 Days
Payment Terms: Western Union, L/C, T/T
Supply Ability: 500 Tons per month
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Detailed Product Description
Model: Boiler Part Product Name: Spiral Fin Tube Economizer Module
Surface Treatment: Painted Condition: New
Range Of Applications: Power Station, Industrial Port: Shanghai
High Light:

boiler spiral fin tube economizer

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Spiral Fin Tube Economizer Module

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Painted Boiler Economizer

Boiler Heat Exchanger , Boiler Spiral Fin Tube Economizer ,Economizer Module

 

Spiral Finned Tube Economizer

 

The economizer can be installed at the rear of exhaust gas stovepipe to recovery exhaust gas heat,increase the electricity output,lower the coal consumption.spiral finned tube economizer is a new and efficient heat transfer equipment, which is a good solution to the light tube economizer because of badly worn, short life and other shortcomings.

 

Working Principles

 

Boiler economizer is kind of heat exchanger to heat the feed water using the flue gas heat. The flue gas coming from the tube outside is up and down cross-flow scrubbing the tube bundle, passing the heat to the tube wall. The water is flowing from bottom to top, and absorts the heat from the tube wall, and its temperature is getting high. This way not only can countercurrent heat transfer to save metal consumption, but also is good for water/steam to flow and exhaust as well as decreasing corrusion. One more, this way works well for dust cleaning.

 

Functions

 

The origin to use economizers is to heat the feed water using flue gas waster heat so as to decrease the exhaust temperature and increase boiler efficiency, save fuel consumption, which is how economizer is named. If use boiler economizers, the feed water is already heated here before coming to evaporation heating surface, thus the heat absorted on evaporation heating surface as well as the heating area is definitely decreased. Boiler economizers are countercurrent placed. The working fluid average temperature is lower than that of surnatured water, and apply mandatory flow to create conditions for application of thin wall and small diameter tubes. The whole structure is also very tight. Thus, the heat transfer temperature difference and heat transfer co-efficient is higher than that of convection evaporation tube bundle who has the same smoke temperature range. That boiler economizers to replace convection evaporation tube bundles can decrease metal consumption by a large extend. Further more, the heated feed water comes to steam drum, this way can decrease the temperature difference between the water and the steam drum wall, and ultimately decrease the thermal stress of the steam drum. Due to reasons above, now economizer are the crutial parts of boilers. So we can summerize the functions of economizers as below:

1. fuel saving: the economizers are placed at the rear part of boilers. This way can decrease the smoke and gas temperatures, thus to save fuels.

 

2.improve the working conditions of steam drums: due to economizers, the feed water temperature is increased when entering the steam drum. It reduces the temperature difference between the feed water and steam drum wall as well as steam drum thermal stress, so that it improve the working conditions of steam drums and increase the service life.

 

3. reduce the boiler manufacturing cost: for the feed water is heated in the boiler economizers. The use of low temperature spare parts as boiler economizers to replace some of high-priced high temperature water wall panels reduces the cost to manufacture boilers.

 

Characteristics

a) Dimensional range

Diameter 6 – 102 mm(0.24 – 4.02 in.)
Wall thickness 0.3 – 9 mm(0.01 – 0.33 in.)
Length up to 25,000 mm(984 in.)

b) Annealing conditions

• Hard
• Annealed conforming to standards (soft, half-hard, blank, etc.)
• According to customer specifications

 

Purpose

 

Using an economizer does not just prevent heat loss — it can also extend the life of the boiler. Stresses from using cooler temperature make-up water, known as “thermal shock”, can subject wear and tear on the boiler’s structural integrity over time. This hammering “shock” effect occurs as the boiler’s fixed tube-sheets and fire-tubes rapidly contract from the sudden make-up of cooler temperature water. However, when this water is pre-heated, the temperature differential is far less extreme, putting less strain on the boiler and giving it a longer operating life. 

Boiler Heat Exchanger , Boiler Spiral Fin Tube Economizer ,Economizer Module in ASME Standard 0

 

Quality Control

 

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

Boiler Heat Exchanger , Boiler Spiral Fin Tube Economizer ,Economizer Module in ASME Standard 1

 

Certificate

 

Boiler Heat Exchanger , Boiler Spiral Fin Tube Economizer ,Economizer Module in ASME Standard 2

 

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.

 

Boiler Heat Exchanger , Boiler Spiral Fin Tube Economizer ,Economizer Module in ASME Standard 3

Contact Details
Zhangjiagang HuaDong Boiler Co., Ltd.

Contact Person: Miss. Sandy Chen

Fax: 86- 512-58774453

Send your inquiry directly to us (0 / 3000)

Contact

Address: Address: N0.1, Dongli Road, Donglai, Zhangjiagang City, Jiangsu Province, China

Factory Address:Address: N0.1, Dongli Road, Donglai, Zhangjiagang City, Jiangsu Province, China