Economizer Module With Soft Water Preheater For Korea Waste Heat Boiler With ASME And KEA
Brand Name:HD BOILER
Certification:ISO9001 , SGS , TUV , ASME , EN,KEA
Model Number:Economizer
Minimum Order Quantity:1 Set / Sets 10tons
Delivery Time:45days
Payment Terms:Western Union, L/C, T/T
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Address: N0.1, Dongli Road, Donglai, Zhangjiagang City, Jiangsu Province, China
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Product Details
Economizer Module With Soft Water Preheater For Korea Waste Heat Boiler With ASME And KEA
Description
Economizer Module With Soft Water Preheater For Korea Waste Heat Boiler With ASME And KEA
(1) HDB consistently executes successful boiler economizer installations using safe, cost-effective methods. Economizers improve boiler performance by increasing fuel efficiency and improving steam generation and response time.
(2) We can guide you through the process of installing or retrofitting existing boiler systems .
Our expert boiler economizer and waste heat recovery system installations can reduce your overall fuel requirements, lower emissions, and ultimately reduce your boiler operating costs.
Function
During boiler operation in typical commercial and industrial applications, approximately 10-20% of the heating value of fuel is expelled with the stack gases to the atmosphere. Stack economizers are designed to recover significant amounts of this stack gas energy loss, thereby vastly improving boiler system efficiency. There are several considerations when selecting an economizer:
1, Gas-side Pressure Drop. Added back-pressure on the boiler stack affects the combustion air fan throughput capability. The economizer and combustion air fan(s) must be sized properly in order to assure a suitable system operation and capacity.
2, Feedwater Temperature. The feedwater to the economizer must be deaerated and the temperature setpoint minimally at 220oF to prevent tube corrosion.
3,Water-side Pressure Drop. Feedwater pumps must be sized to accommodate the economizer pressure drop. Additionally, a continuous modulating feedwater system is required to ensure proper flow rates through the economizer.
Variety
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. |
HRSG Economizer
| 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. |
Performance advantages
1.Application of flue gas waste heat recovery system for tail flue of power plant boiler
The thermal temperature is low, usually 100℃ or so with not good quality.
(1) This part of the recovery of heat is not equivalent to the method of calculation, but should be equivalent conversion method or heat balance calculation to determine the effective use of heat recovery value (thermodynamics second law).
2. Used in other industrial boilers in the flue gas waste heat recovery device
(1) Under normal circumstances, the economy is in priority in power plant application. This is because in other industrial boiler systems, the available steam resources are limited. For users with not enough steam, the recovery of heat can be considered 100% available resources, the most economical.
(2) flue gas waste heat exchanger advantages
| ◆ | improve the efficiency of recycling, reduce coal consumption; |
| ◆ | improve the efficiency of dust removal (before the installation of dust collector); |
| ◆ | reduce the evaporation of desulfurization tower, saving water. |
Economizer Module With Soft Water Preheater For Korea Waste Heat Boiler With ASME And KEA
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