|Place of Origin:||China,zhangjiagang city|
|Brand Name:||HD BOILER|
|Certification:||ISO9001 , SGS , TUV , ASME , EN|
|Minimum Order Quantity:||2Set / Sets 10tons|
|Packaging Details:||Seaworthy Packing|
|Payment Terms:||Western Union, L/C, T/T|
|Supply Ability:||500 Tons per month|
|Material:||Carbon Steel/Alloy Steel/Stainless Steel||Usage:||Power Station/Sugar MILL|
|Type:||Natural Circulation||Structure:||Hot / Water Tube|
|Output:||Steam||Fuel:||Coal/Gas/Oil-fired, Water Heat|
ASME Flue Gas Economizer,
Power Plant Flue Gas Economizer,
cfb Flue Gas Economizer
ASME Standard Low / High Pressure Flue Gas Economizer Heat Effiency Solid Fin Tube For Power Plant
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.
|Material||Alloy steel, Carbon steel, SA210C ,SA213T22, etc.|
|Material standard||ASTM, EN or ISO etc.|
Min: 10 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|
Consists of a serious of spiral fin tubes, the headers of inlet and outlet, bend, frame and other auxiliaries.
In line / staggered arrangement.
There are three stages from the feed water in the boiler heated into superheated steam:feed water preheating, evaporation, and superheating. The three stages are finished on three different heating surfaces. The boiler steam and water circuit are composed of the three different heating surfaces as well as their connecting pipes. Boiler economizers are one of them, and it is right the equipment to preheat the feed water. Thus, it is the heating surface with the lowest temperature for boiler working fluid in the boiler steam and water circuit. The working fluid passing through this equipment is monophasic water(non-boiling economizer).osphere to (in most cases) preheat the feed water into the boiler.This improves the boiler efficiency and reduces fuel costs.
Utility Boiler Economizer
|1||HDB produces economizers for utility boilers, which includes boilers fueled by coal, wood, oil, or other solid fuels to produce electricty from the boiler's high pressure steam.|
|2||These economizers are usually located in the back pass of the boiler and oriented with the tubes running horizontally.The boiler feedwater runs through the economizer circuits in the opposite direction of the gas flow (called counterflow).|
|3||Bare tubes are typically utilized in order to minimize ash fouling, but some boiler OEM's design their economizers with finned tubes, either spiral or long finned.|
|4||HDB can produce economizer elements with either bare, spiral finned, or long finned tubes, and if you prefer, re-design your unit to one of the other tube-types. HDB can also fabricate replacement headers for all utility boiler economizers.|
Package Boiler Economizer
|1||HDB has unique manufacturing capabilities that the Optimus engineers take full advantage of when designing sulfuric acid plant economizers and superheaters.|
|2||Often this allows the Optimus units to be configured for higher heat transfer efficiencies which results in a reduced surface area requirement and, consequently, a lower-priced product.|
|3||HDB utilizes its on-site capabilities to fin and bend the tubes, machine and fabricate the headers, drill the tubesheets, cut and prep all casing materials, and perform all of the pressure part and casing welds.|
|4||This gives HDB more control of the manufacturing sequence and schedule which has helped us achieve a remarkable record of on-time delivery performance.|
|1||Economizers for today's HRSG modules are configured with fintubes that hang vertically. HDB has fabricated economizer coils for virtually all of the HRSG OEM companies and understands the unique features of each.|
|2||In many cases, utilities desire to upgrade their economizers from plain carbon steel to an alloy material to help resist flow accelerated corrosion (FAC) inside the headers and tube bends.|
|3||HDB is a one-stop shop for economizer fabrication because we prep all the materials and perform all of the pressure part and attachment welding, from finning the fintubes, fabricating the headers, and assembling the coil bundle.|
Manufacturing and acceptance criteria
|·||JB/T6512 "boiler with a high-frequency resistance welding spiral fin tube manufacturing technology conditions"|
|·||HG/T3181 "high-frequency resistance welding spiral fin tube"|
|·||JB/T6511 "spiral finned tube test technical conditions."|
|·||JB1611 "boiler tube mane box assembly conditions"|
|·||JB/T1612 "boiler pressurufacturing conditions."|
|·||JB16I3 "boiler pressure parts welding conditions."|
*Note:HD BOILER can bespoke special type of economizer according to customer's requirement.
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
Contact Person: Yolanda
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