RH Series Waste heat recovery system
Product details: Spray Drying Equipment Waste Heat Recovery
Ventilation Unit Compact Structure / Waste heat recovery system
| Size: | The Machine Is Customized ,we Can Do It According To Customer
Requirment | Certicate: | CE ,ISO9001&14001 |
| Material: | SUS304 Or 316L | Feature: | Low Temperature Heat Energy |
| Name: | Mechanical Heat Recovery Unit | Power: | Customized |
Product introduction:
Waste Heat Recuperator is a form of heat exchanger in which hot
waste gases from a furnace are conducted continuously along a
system of flues where they impart heat to incoming air or gaseous
fuel.
XIANDAO production line drying with efficient heat exchanger of
waste heat recovery: Ultra clean situations, effective benefit at
200 ºC drying line exhaust, with 165 ºC fresh air into the oven to
reduce oven electric heater power consumption;
The characteristics of this Hexagon Plate Type Air Preheater:
Compared with the traditional preheater, this plate pre-heater has
high density of the heatingsurface , good corrosion resistance,
long service life, compact structure, cover the smaller an area,
pressure drop is small, low leakage coefficient.
The Counter-flow system has high efficiency,vertical gas
channels,and easy cleaning.
Technical performance indexes /Parameters:
| Medium | Air, Flue gas |
| Mass flow: | 11339.00 to 2494761.00kgs/hr |
| Temperature: | Up to to 565 ºC |
| Design pressure | atmosphere pressure |
| Efficiency: | up to 90 % |
| Material: | Carbon steel, Corten, stainless steel,enameled carbon steel |
Main characteristics of heat pipe:
1. Quick start, fast heat transfer
2. Small heat resistance, good temperature uniformity
3. High thermal conductivity. 14MW/m.C
4. Large heat transfer capability
5. Wide temperature range
6. Low working pressure
7. Good compatibility
8. Long service life
9. Safe and reliable application
10. Heat transfer element, no matter in the heat excitation state
or static state, will not produce any harmful to the human body's
radioactive material
Advantage:
Waste heat boiler and heat recovery boiler,including the process of
gas heater, steam superheater, auxiliary air heater etc.Outside fin
surface, increase the heat transfer area, improves the thermal
efficiency change.Using X-ray, ultrasound, magnetic powder, the
nondestructive testing methods such as permeability, to ensure the
quality of equipment.
Technical specifications:
| Technology characteristics |
| hot side | cold side |
| medium | flue gas | medium | air |
| Mass Flow | 35000kg/h | Mass Flow | 22700kg/h |
| Inlet temp | 346ºC | Inlet temp | 20ºC |
| Outlet temp | 180ºC | Outlet temp | 290ºC |
| Pressure drop | ≤1000Pa | Pressure drop | ≤1000Pa |
| Equipment size | 4600/2300/4100 | Material | 304/Q235 |
| Heat transfer | 1842Kw | Heat transfer area | 1000m² |
Flue gas-air heat exchanger pic and schematic:
Heat pipe technology introduction
Heat pipe is a kind of new heat conduction element with super high
thermal conductivity. Since the 80s have been developed heat pipe
gas - gas heat exchanger, heat pipe gas - water heat exchanger,
heat pipe waste heat-steamhorseshoe kiln, heat pipe steam
generator, heat pipe hot air stove and other heat pipe products.
Heat pipe widely used in building materials industry, metallurgical
industry, chemical and petrochemical, power engineering, textile
industry, glass industry, electrical and electronic engineering and
so on.
Heat pipe working principle
Heat pipe is the core components of waste heat heat pipe
evaporator. Heat transfer through the phase change latent heat of
the working medium in a closed vacuum tube. The heat transfer
performance is similar to the conductive properties of
superconductors.has high heat transfer capacity and a good heat
transfer efficiency. A typical gravity heat pipe is as the picture
shows, the sealed tube evacuated,then filled with a small amount of
working medium. And the lower end of the heat pipe is heated, the
working fluid absorbs heat and vaporized into steam, under a small
pressure difference, the steam go to the heat pipe top end and
release heat to the outside, then the working medium condenses into
liquid again, the liquid along the inner wall of the heat pipe
return to the lower heated section under the action of gravity.
Then absorbs heat again. Recurring, continuously transfer heat from
one end to the other.
As it's phase change heat transfer, heat pipe heat resistance is
very small, heat pipe has a larger heat transfer capacity with a
smaller temperature difference. And the heat pipe structure is
simple.has a one-way thermal characteristics.Particularly due to
the unique mechanism of the heat pipe, the heat exchange between
the cold and hot fluid is carried out outside the pipe, and can
easily enhanced heat transfer.
Structural Characteristics of Heat Pipe Heat Exchanger:
1. Easy installation.the waste heat recovery equipment
installation, no need to modify the original steam horseshoe or
industrial kiln. No environmental restrictions, Heat pipe can be
designed according to the environment requirements.
2. Safe and reliable.the heat pipe isothermal is good, fast heat
transfer, high efficiency. Resonance occurs during heat transfer,
does not produce dirt and ventilation resistance. Won't affect the
steam horseshoe kiln or kiln of normal work under any condition.
3. Density variability. The heat pipe can independently change the
heat transfer area of the evaporator section. It means the heat
pipe can reduce the heating area of absorbs heat, and increase
cooling area of release heat. Or Heat pipe can increase the heating
area of absorbs heat, and reduce cooling area of release heat.
4. Wide application. Can be used in food, control, building
materials, steel, electronics, chemicals, wood processing, paper,
pharmaceutical, clothing, beverages, machinery and other
industries. Can adapt to a variety of harsh working environment.
5. Long life. Corrosion-resistant, High temperature, lifetime 8-10
years.
6. Energy-saving. energy-saving 10%-30%, emission reduction
10%-20%, equipment investment recovery time is short, 3-10 months
can recover the full investment.
7. Easy maintenance. Easy to remove dust, maintenance convenient.
Working principle
The wet air enter into the heating area from the bottom of the
equipment.
After the bottom of hot pipe absorb the heat, and the working
medium in the hot pipe will be evaporated, and absorb Evaporated
heat from the wet air. After evaporation , the steam will go up to
the top of the hot air, meanwhile, it can be pre-condensed, and
release the potential heat to the hot air radiating area . and the
condense will back return by the gravity heavy , and continuously
receive heat , and repeat delivering the heat from the heating area
to the heat radiating area,and heat the fresh for waste heat
recovery .
