Energy Saving Steel Economizer Heat Exchanger Tubes Boiler Spare
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 types of boiler economizer, bare tube
economizer, H finned tube economizer and spiral finned tube
economizer and gilled tube economizer.
There are many ways to classify coal economizer, which can be
classified as follows:
1. according to the degree of heating water: can be divided into
non-boiling type and boiling type of two.
2.according to the manufacturing materials: cast iron and steel
pipe economizer two.Non-boiling economizers are mostly made of cast
iron, but they are also made of steel pipes, and boiling
economizers can only be made of steel pipes.Cast iron economizer is
mostly used in boilers with pressure 2.5mpa.If the pressure exceeds
2.5mpa, the economizer made of steel pipe shall be used.
3. according to the form of the device: vertical and horizontal
4. According to the relative flow direction of smoke exhaust and
water supply, there are three types: forward flow type, reverse
flow type and mixed type.
5. according to the structure of the form: light tube economizer
and fin economizer.Finned economizer includes: H type economizer
(used more) and screw fin economizer.
6. according to the form of heat conduction: direct conduction and
Main technical advantages of our low temperature economizer
1. The equipment body can be designed into many modules to ensure
the long term and stable running;
2. The low temperature economizer manufactured by our company can
guarantee the wall temperature is 5-10 ℃ higher than the acid , and
flue outlet temperature is 10-15 ℃ higher than the wall surface
3. Wall surface temperature can be adjusted according to the boiler
load and fuel changer to avoid corrosion under low temperature
4. Changer the DCS system of the existing boiler to achieve the
auto and remote control by
|Description||Heat boiler economizer, steam boiler economizer, oil boiler
economizer, coal steam boiler economizer, Gas boiler economizer,etc|
|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|
The boiler economizer acts as a waste heat recovery device,
ensuring that this heat does not go unused.
Instead, the heat is used to essentially preheat the water, so that
less heat is required to bring the water to a temperature high
enough to make steam
(1) the economizer is a heat exchanger that USES waste heat from
boiler smoke exhaust to heat water supply;
(2) the economizer absorbs waste heat of exhaust smoke, reduces the
exhaust temperature and improves the efficiency of the boiler;
(3) due to the water supply entering the drum, the water
temperature has been raised through the economizer, and the thermal
stress on the wall of the drum caused by temperature difference has
been reduced, thus improving the working conditions of the drum and
extending the service life of the drum.
HD Boiler is located in Dong Lai Industrial Park, establish of
Zhang Jia Gang City. HD Boiler
is a leading company and exporter of industrial boilers,power plant
boilersand boiler parts (including steam drum, membrane waterwall
panel,header,economizer, evaporator, superheater,H-fin economizer,
spiral fin tube, air preheater, heat pipe, flue etc.), seamless
steel tubes/pipes and ERW steel pipes.ORL provides our customer
with full range of services including boiler design, fabrication,
installation and commissioning, boiler maintenance, and supervision
at site. Our product and service include design and manufacture
industrial boilers, pressure vessels and tanks, and pressure parts
for power plant boilers (600MW, or 1000MW).