Product Thermal Capacity: 1 - 20 t/h
Working Pressure: 0.7 - 2 Mpa
Available Fuel: Nature gas, coke oven gas, biogas, methanol, liquid propane gas, diesel, heavy oil, light oil, crude oil, etc.
Available Industries: Heat supplying, chemical, food, textile, printing and dyeing, cigarettes and tobacco, fodder, pharmacy, building materials, brewery, rubber, hospital etc.
WNS series horizontal internal combustion boiler is a boiler shell type 3 passes wetback oil/gas fired boiler. After fuel is being atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, this is 1st pass; the high temperature smoke is collected in reversal chamber and then enters 2nd pass which is grooved tubes bundle area; after heat convection, air temperature gradually falls and goes to front smoke box and turn to 3rd pass, which is smooth tubes bundle area, and then enters chimney passing back smoke box and exhausted to the atmosphere.
1. Digitized manufacture
The key part such as material cutting, rolling, drilling are proceeded by advanced CNC machining process to reduce the assemble stress and extend boiler working lifetime.
The front and back smoke chamber plates are cut by CNC plasma cutting machine and looks tidy and beautiful.
2.Easy operation and maintenance
Fully automatically operating, with automatically adjustment and protection of burning, water level, temperature and steam pressure.
3. Longer working life
Smoke tube and tube sheet connection is expanded first to eliminate the gap between them, then adopt automatic argon arc welding to relief the stress and expand boilers working life.
Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. All longitudinal and girth joint will have 100% radiographic inspection.
Fin tube us ND steel or stainless-steel material which avoid low temperature corrosion.
Inspection procedure point is set up to guarantee the sequence of expanding and welding, avoid cracking of the tube sheet holes.
4. Less fuel consumption
High quality aluminum silicate fiber is used with fire clay insulation, to control the boiler body temperature below 45℃ to control heat lost.
Sufficient steam storage room and heating area makes boiler to generate high quality steam and high thermal power.
Condenser is added to reuse the waste heat of the exhausted smoke to increase feeding water’s temperature and reduce emission temperature, which can increase the thermal efficiency above 98% and save operating cost.
This is possible, as long as the back boiler has been left in situ and is still connected to the fire. If the back boiler has been removed, you are no longer able to use the fire. In Essence the Boiler Can't be used if the fire is not on the front and the fire cant be used without the boiler on the back.
Mar 04, 2011· hi I got a open fire back boiler installed last year so you can still get them ,we got ours from aerocrete on shore road around the whitewell area around the £300 I think but try them anyway ,ours will also heat up to 7 rads as well
What is a back boiler? Back boilers (also known as back boiler units or BBUs) became popular in 1966 with the launch of the original Baxi Bermuda. A back boiler is a small, compact boiler fitted at the back of an open fireplace hearth. It sits behind a gas fire and provides hot water and central heating to …
Back boilers with gas fires were initially created in late 1960s and were extremely popular within 20 years after the very first appearance on the market.. Being hidden behind a chimney with a gas fire in front, such units provide pretty effective heating. They are usually made from cast iron, and they are a legacy, since the time the water was heated by a coal fire.
Coal fired back boiler has heating but no hot water . Mar 03, 2008· I have recently purchased a house with a coal fired back boiler that heats the water and the central heating. The heating is on demand via a simple on/off switch on the wall which gets red hot.
Sep 03, 2019· Breeno, good evening again. Generally what happens is that if the damper is closed, the fire only gets to the "front" of the boiler. Once the damper is opened, the fire and the hot gasses can get in contact with the base and rear of the back boiler thus increasing the surface area of the back boiler in contact with the flames and hot gasses.
Coal fire back boiler leaking. We currently have a coal fire with a back boiler that is leaking(we have no other source of hot water). Ideally we would like this fixed as a temp measure until we can get a new electric/gas boiler fitted. We have no gas supply but our neighbour does so I have asked for Northern Gas Networks to start the
The back boiler unit typically consists of a fire grate, which carries the combustible material e.g. coal, and a water chamber ‘surrounding' it. This water ‘jacket' is generally behind the fire but may also be at the sides and partially above the grate with the flue passing through it.
Back Boiler Replacement – Prices, Costs and Upgrade Options. Back boilers sit behind the recess of a fireplace and heat the home and water accordingly. Hidden behind the fireplace, they save space compared to traditional gas boilers. They are also renowned for being exceptionally reliable.
Answer / viraf b. karanjawala. the probable causes of boiler backfire are 1) outlet damper partially/fully closed, 2) Improper tuning of the burner 3) accumulation of combustible gases in pockets with in the
back boiler AND open fire — MoneySavingExpert ForumJan 21, 2016Removal of coal fired back boiler — MoneySavingExpert ForumAug 18, 2009can i remove baxi fire but keep back boilerAug 14, 2007Back boiler- can I get a new gas fireJun 15, 2006See more results Oct 01, 2017· I'm looking to remove a coal fire which has a back boiler and has recently been in use. Pipes now disconnected etc but finding it very difficult to even attempt to remove it seems there is a lintel about a meter up from ground but below is all bricks with a small opening for the recent coal fire.
No. 76, Xin Da Road, Zhou tie Town, Yixing, Wuxi, China
0086-510-68530066, +86-13506151292Get Latest Price
Copyright © 2020.Zhongzheng Boiler Co., ltd. All rights reserved.