Boiler Stack Economizer Reduce Exhaust
Temperature And Improve Efficiency
Production Introduction
Economizer is installed on the lower part of the boiler tail flue
for recycling the waste heat of smoke, a device heating boiler feed
water into steam drum pressure of saturated water heating surface,
due to its high temperature flue gas heat, reduces the exhaust
temperature of flue gas, save the energy, improve the efficiency,
so called the Economizer.Steel tube economizer is not limited by
pressure, can be used as a boiling type, generally by the outer
diameter of 32 ~ 51 mm carbon steel tube. Fins and fins are
sometimes added to the tube to improve heat transfer. The tubular
economizer consists of horizontally arranged parallel elbow pipes
(commonly known as serpentine pipes).
Function
1.The economizer is a steam generation system as like a boiler.
when the exhaust gas discharge from the engine cylinder through the
exhaust valve it goes to the boiler for generate steam by heating
of water.
2.After those gas it goes through the economizer the remaining
exhaust gas temperature is heated the water in economiser. it help
to generate steam, and it is improving the efficiency and save the
fuel consumption
3. An economizer uses the waste heat from the boiler exhaust, that
would otherwise be lost to atmosphere to (in most cases) preheat
the feed water into the boiler.This improves the boiler efficiency
and reduces fuel costs.
Advantages
1. Absorb the heat of low-temperature flue gas, reduce the smoke
discharge temperature, reduce smoke loss, and save fuel.
2. Since the feed water is heated in the economizer before entering
the steam drum, the heat absorption of the feed water on the
heating surface is reduced, and the economizer can be used to
replace part of the evaporation heating surface with higher cost.
3, feed water temperature increased, into the drum will reduce the
wall temperature difference, thermal stress corresponding to
reduce, extend the service life of the drum.
Specifications:
| 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 |
Test:
| 1 | Latest type of 'U' bending machine is used for precision cold
bending of tubes. |
| 2 | Bending is done for all kind of heat exchanger, condenser,
economizer, boiler tubes in Stainless Steel Seamless as well as
welded. |
| 3 | Subsequent to 'U' bending tubes are hydro tested & stress relieved
if asked for. |
| 4 | Also mock-up pieces are prepared for determining thickness
reduction on the bend portion. |
| 5 | Dye penetrant testing on the bend portion is done ro detect cracks,
flaws or any type of defect. |
| 6 | Special packing is provided to prevent any damages during transit. |
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?
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.
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.
