Coal Steam Hot Water Boiler Spare Parts Tubular Economiser Tubes
economizer for boiler
Spare Parts Tubular Economiser Brief Introduction
1. After producing steam, the flue gas comes out from the system.
Some heat energy remains in the flue gas when it goes out.
2. If we cannot utilise this heat energy, it gets lost.
3. Boiler economiser is a device which uses a portion this remained
energy of the flue gas to heat up inlet water (feed water) to the
boiler.
4. Since the heat energy is given to the water before it gets fed
to the boiler, the requirement of fuel for producing steam is
optimised. Because of that, we call this device as economiser.
How does boiler spare parts economiser work
1. Boiler stack economizers are simply heat exchangers with hot
flue gas on one side and water on the other. Or, in direct contact
condensing units, the make-up water is in direct contact with the
flue gases.
2. Economizers must be sized for the volume of flue gas, its
temperature, the maximum pressure drop allowed through the stack,
what kind of fuel is used in the boiler, and how much energy needs
to be recovered.
3. Economizers designed for natural gas only, would likely plug-up
if installed on a coal boiler and would face increased risk of
corrosion if installed on an oil-fired boiler. Some units are
designed to keep the flue gases above condensation temperature, and
others are made of materials that resist the corrosive effect of
condensed flue gases.
Serpentine Tube Economizer Application
1. It is used in all modern plants. The use of economizer results
in saving fuel consumption increases steaming rate and boiler
efficiency.
Some of the common applications of economizer are given below, In
steam power plants it captures the waste heat from boiler stack
gases (flue gases) and transfers it to the boiler feed water.
2. Air-side economizers HVAC (Heating, Ventilation, and Air
Condition) can save energy in buildings by using cool outside air
as a means of cooling the indoor space.
3. Refrigeration: This is commonly used in industrial refrigeration
where vapor compression refrigeration is essential. Systems with
economizers aim to produce part of the refrigeration work at high
pressures, a condition in which gas compressors are normally more
efficient.
Specification
| 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 |
Casting product as connection
