Boiler Economizer Carbon Steel Stainless Steel Heat Exchanger Tube in ASME/En/GB Standard

• Certification: CE, ISO, ASME and En
• Customized: Customized
• Surface Treatment: Painted
• Fuel: Coal
• Range of Applications: Power station, Industrial
• Product Name: Boiler Economizer Bank
• Model NO.: HDBECO1
• Application: Replacement and Maintenance
• Material: SA213t11 and SA36
• Dimension of Tube: Od44.5mm*4.57mm Thick
• Production Technique: Tube Bending and Butt Welding
• Standard: ASME Section I, 2023
• Transport Package: Steel Frame and Wooden Box
• Specification: L9010mm*W1800mm*H2100mm
• Trademark: HDB
• Origin: China
• HS Code: 8402900000
• Production Capacity: 9000 Tons/Year

Product Description

Product Description

 

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.

 

Detailed Photos

 

Product Parameters

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

 

Company Profile

Zhangjiagang Hua Dong Boiler Co., Ltd, was founded in 1985, is an enterprise specializing in manufacturing power station boilers, industrial boilers, HRSGs, waste incineration boilers, biomass boilers and related heating surface components in China. Hua Dong Boiler provides clients with integrated services from design, manufacturing to installation and maintenance.

 

FAQ

 

Q1: How long is the warranty period?

We provide 18 months warranty for all spare parts(exclude fragile parts).

Q2: How can we guarantee quality?
1) All machines are in strict accordance with the ISO quality and CE system requirements.
2) Each procedure is crafted by professional Skilled labour, followed by particular QC
3) All information of our products can be checked in efficient management system.

Q3: What can you buy from us?
CFB Boiler, HRSG Boiler, Boiler Economizer, Boiler Fin tube, Boiler Air preheater, Boiler superheater, Boiler membrane wall,
Boiler manifold headers and other pressure spare parts.

Q4: What kind of service do you provide?
Before sales:
Provide productinformations, market research forecasting, product customization,product processing,consultation and other services for your convenience.

After sales:
1. Technical training on according to customer requirements;
2. We promise replacement under warranty;
3. We promise to supply the maintenance spare parts;
4. Regular call back or visit customers;
5. On time response to mail and phone calls of your complaints or consultation.

Accepted Delivery Terms: FOB, CFR, CIF, EXW, FCA;
Accepted Payment Currency: USD, CNY;
Accepted Payment Type: T/T, L/C, MoneyGram, Western Union, Cash;
Language Spoken:English,Chinese

Q5: Are you a factory or trading company, where are you located?
We are a factory, just 130km(2 hours by car) away from Shanghai Airport.

We offer pickup service at Shanghai for your visit.