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waste heat recovery economiser design

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.

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Introduction of WNS gas / oil fired steam boiler:

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.

Technical advantages:

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.

Efficiency in boilers and beyond - Alfa Lav

File Size: 544KB Efficiency in boilers and beyond Steam production and waste heat recovery . 2 In 2007, a new generation of MISSION boilers (Turbo Clean, intelligent) boiler design, which reduces the need for water washing and the need for effluent disposal. What remains unchanged is the fact that we have all the Waste heat recovery today is a broader

Considerations When Selecting a Condensing Economiz

File Size: 2MB that exceeds 90%. A condensing economizer can increase overall heat recovery and steam system efficiency by up to 10% by reducing the flue gas temperature below its dew point, resulting in improved effectiveness of waste heat recovery. This tip sheet is a companion to Steam Tip …

Economizer - Wikiped

Modern-day boilers, such as those in coal-fired power stations, are still fitted with economizers which are descendants of Green's original design.In this context they are often referred to as feedwater heaters and heat the condensate from turbines before it is pumped to the boilers.. Economizers are commonly used as part of a heat recovery steam generator (HRSG) in a combined cycle power plant.

Green's Power | Economisers, waste heat boilers, la

What is economiser in boiler?Economizers, in steam power plants , used to capture the waste heat from boiler flue gas and transfer it to the boiler feedwater.What are the types of economisers?There are two main types of economizers: non-condensing economizer and condensing economizer. Non-condensing economizers are mainly used because thWhy economiser is used in boiler?Boiler economizer used to improve steam boiler system’s efficiency. Economizer is kind of heat exchanging device. We design and manufacture customised waste heat recovery systems incorporating our economisers and waste heat boilers for a wide range of industrial sectors.Our industrial customers range from pulp and paper, steel and sugar mills to food processors, chemical plants and general manufacturers.

Waste Heat Recovery - Energy.g

RD&D to advance waste heat recovery technologies. Technology needs are identified in two broad areas: 1) extending the range of existing technologies to enhance their economic feasibility and recovery efficiency, and 2) exploring new methods for waste heat recovery, especially for unconventional waste heat sources. Acknowledgement

Waste heat recovery unit - Wikiped

A waste heat recovery unit (WHRU) is an energy recovery heat exchanger that transfers heat from process outputs at high temperature to another part of the process for some purpose, usually increased efficiency. The WHRU is a tool involved in cogeneration.Waste heat may be extracted from sources such as hot flue gases from a diesel generator, steam from cooling towers, or even waste water from

Waste heat recovery technologies and applicatio

2. Waste heat recovery systems. Waste heat recovery methods include capturing and transferring the waste heat from a process with a gas or liquid back to the system as an extra energy source .The energy source can be used to create additional heat or to generate electrical and mechanical power .. Waste heat can be rejected at any temperature; conventionally, the higher the temperature, the

Boiler Economizers | CBW Industrial Boiler Waste He

Cited by: 92 Boiler Economizers are waste heat recovery systems that recover heat from industrial boilers and include gas condensing, dual stage and feed water economizer systems. but can be used in a condensing application if originally design to do so. A traditional economizer is operated in a hot environment, the tubes and the flue gases are well

Boiler Economiser | Industrial Boiler Products | Cochr

Economisers 6%+ Fuel Savings with Cochran Economisers. Complete our Heat Recovery & Economiser survey so that we can determine the level of waste heat recovery for your plant.. The Cochran range of Economisers is designed to recover heat from Boiler exhaust gases, and transfer this to the incoming Boiler feed water, thus increasing the overall Boiler Thermal Efficiency.

Waste Heat Recovery System (WHRS) - MAN Energy Solutio

a waste heat recovery system compris-ing both steam and power turbines, and combined with utilising scavenge air energy for exhaust boiler feed-water heating. This paper describes the technology behind waste heat recovery and the potential for ship-owners to lower fuel costs, cut emissions, and the effect on the EEDI of the ship. Introduction

Optimising heat recovery with - Recycling Waste Wor

Dec 14, 2018· For a heat recovery capital investment project, the client would need to consider a series of factors to calculate the return on investment (ROI). These include available waste energy in the exhaust gas system, the manufacturing and installation cost of the heat recovery unit and physical space available in the plant for the heat recovery unit.

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No. 76, Xin Da Road, Zhou tie Town, Yixing, Wuxi, China

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