Highly Efficiency Boiler In Thermal Power Plant , Power Plant
Economiser Easy Operation,ISO/ASME Certification
Economizer 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.
The steel-pipe coal saver is not restricted by pressure and can be
used as a boiling type, which is generally controlled by carbon
steel with an outer diameter of 32 ~ 51 mm.Sometimes the fin and
fin are added to the tube to improve heat transfer.The steel-pipe
coal saver consists of parallel curved pipe (called serpentine
pipe) arranged horizontally.
The coal saver is mainly used for industry, and it is gradually
applied to agriculture and some related industries.
Steam boiler economizer can be made of alloy steel, carbon
steel or other kind of material as per the customer’s requirements.
It conforms to the standard of ASTM, EN, DIN, GB. The
manufacturing equipment is 30~185MN hydraulic press, the forging
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 computer.
(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.
|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|
1. The economizer is to heat the boiler feed water (softened water)
to raise the feed water temperature, instead of heating the boiler
water.Absorbing the waste heat of flue gas to heat the boiler,
reducing the heat loss, improving the efficiency of the boiler and
saving coal accordingly.
2. The economizer shall install the safety valve and temperature
gauge separately. In case of water shortage accident of the boiler,
the bypass waterway of the economizer shall be opened immediately
and the inlet and outlet of the economizer shall be closed.
3. The feed water is heated in the economizer before entering the
evaporative heating surface to reduce the heat absorption of water
in the evaporative heating surface, which is equivalent to
replacing part of the evaporative heating surface with the
4. The heating surface of the economizer is much cheaper than that
of the evaporating heating surface.
Established in 1985, Zhangjiagang Hua Dong Boiler Co., Ltd.
(trading as HD Boiler), is a
professional industrial manufacturer, producing utility
boiler,industrial boiler,HRSG boiler and all
kinds of boiler parts, such as waterwall panels, economizers, air
headers, spiral fin tubes, H-fin tubes, heat pipes etc.
We are the qualified supplier for the following large boiler
manufacturers in China:
- Shanghai Boiler Works Ltd.
- Hang Zhou Boiler Group Co. Ltd.
- Dong Fang Boiler Group Co., Ltd.
- Wuxi Huaguang Industrial Boiler Co., Ltd.
- Jiangxi Jianglian Energy & Environment Co., Ltd.
- Suzhou Hailu Heavy Industry Co., Ltd.