WNS Type Industrial Natural Gas Diesel Oil Full Wet Back Structure
Medical Sterilized Boiler
Product basic information:
1. Boiler type: fire tube, smoke tube boiler.
2. Fuel: natural gas, lpg, lng, cng, diesel, heavy oil.
3. Pressure: 0-16bar on option.
4. Structure: three pass, wet back, horizontal.
5. Boiler capacity: 0.3ton to 20 ton per hour steam vapour.
Smoke process and Full wet back structure:
After the fuel and air are fully mixed, they are ignited and burned
to produce high-temperature flue gas. The boiler furnace is
positive pressure. After the high-temperature flue gas is burned in
the furnace, it enters the second return thread pipe bundle through
the back combustion chamber, and then passes through the front
cigarette box. Into the third return thread pipe bundle, and
finally discharged into the atmosphere.
The boiler furnace, the back combustion chamber and the smoke pipe
are all immersed in water. During the flow of the flue gas, these
components exchange heat by the temperature difference between the
flue gas and the water, and the steam is generated by the main
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|Burn light oil||Burn gas||(t)|
|Note: Parameter is for reference only, we can design the boilers
based on customers’ needs.|
Product introduce and advantage
- Three-return structure: adopts the international popular shell-type
three-return ,full wet back structure, combustion chamber large
volume design, to ensure the combustion more fully. Fuel combustion
in the furnace by micro-positive pressure, high temperature smoke
gas along the boiler furnace go backward through reverse flow
combustor turn 180°into the first smoke flue tube bundle, pass the oppressive front
smoke box then turn 180°into the second smoke flue tube bundle, after the convection heat
transfer injection into the atmosphere.
- The corrugated furnace: the combustion chamber adopt full
corrugated furnace structure, not only strengthen the flue gas
disturbance, but also increased the radiation transfer area; not
only increase the rigidity of the furnace, but also effectively
weaken expansion stress of furnace; both enhance the heat transfer
effect, and promote the fuel combustion in the furnace.
- The unique pipe and tube sheet welding technology: adopts the first
pre-expansion and then all welding, and then expanded connection
advanced technology. Both to prevent the pipe gap corrosion, and
enhance the welding strength; adopts the high heat transfer
coefficient of the screw smoke tube, to strength the convective
heat transfer effect, reduce the exhaust gas temperature, improve
the boiler thermal efficiency.
- Symmetrical activities hinge joint front, back smoke door: easy to
open, convenient for repair, clean up.
- Wet back structure: the boiler use wet back structure, full pull
side butt weld,reliable performance, low maintenance costs.
- Rear-view device: rear view device design, easy to observe the
- Security: design over-temperature, overpressure, water-shortage,
leakage detecting, flameout and other protection functions, boiler
operation safe and reliable.
- We will reply your inquiry in 7*24 hours.
- Experienced staffs will answer all your questions in fluent and
- Customized design is available.
Guarantee: One-year warranty and full-life service for all of our steam
A full range of original spare parts are available for all YINCHEN
Pre-sales Service: Based on customers’ request and budget, our experts make
solutions, and we produce strictly following customers’ order.
Every customer has the chance to visit
our workshops before placing the order. And we help to arrange
cars, hotels, and the translators for
every visiting customer.
After-sales Service: Experienced technicians guidance is available on the phone, and on
One or more engineers will be dispatched to the installation site
to help install the customers’ boilers.
We also provide necessary training about boiler operation and daily
maintenance to local workers.
How to choose a boiler type?
Identify the type of boiler you want(steam boiler or hot water
The boiler capacity,pressure,and fuel(oil,gas,biomass,coal),or you
can consult us.
How about the installation?
Guide installation online or we can provide staff installation by
our staffs, but you have to afford the extra cost if If we send
professional staff overseas to install it.
How about your delivery time?
Generally, it will take 10 to 15 days after receiving your advance
payment. The specific delivery time depends on the items and the
quantity of your order.
What about after-sale service?
We will supply professional after-sale service team as soon as we
receiving your problem feedback, we will dispatch our engineers to
your country and solve your problems right now.