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steam boiler releted objective quistion and answer

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.

When was the first steam boiler invented - Answe

The invention of the first steam-boiler furnace, as well as subsequent improvements upon its design, is credited to Granville T. Woods. He is notable for being the first African-American to

What are the applications of steam produced in the boile

Application of a Steam Boilers: Steam Boilers are use in all process industries, where required Steam. There are Following application of steam boilers… * Thermal Power plant * Steel Industry * Textile industry * Sugar industry * Plywood industry

Steam Boiler Questions and Answe

Answer: The boiler manhole-lids are mounted from the inside of the boiler so that the boiler pressure will help to keep them tight. Hence the manholes have to be elliptical in shape to make it possible to take the lid out from the boiler. Boiler Questions and Answers

Who invented the boiler? - Quo

Jan 27, 2017· steam-generating boiler’s roots go back to the late 1700s and early 1800s with the development of the kettle-type boiler, which simply boiled water into steam. The water was placed above a fire box and then boiled into steam. It wasn’t until aroun

What is a Steam Boiler? (with pictures) - wiseGE

May 11, 2020· The steam valve is a small opening at the top of the tank, usually fitted to a pipe. Most high-pressure steam boilers also have a chimney that helps expel excess heat from the system. The operation of a steam boiler is equally simple. The heating element is brought to a high temperature. The tank water eventually will begin boiling and creating

Steam boiler | Steam boiler Objective Type Questions a

Boilers Fuel Oil System · Lars Josefsson 35. The air pressure at the fuel bed is reduced below that of atmosphere by means of a fan placed at or near the bottom of the chimney to produce a draught.Such a draught is called..

Steam Boilers and Engines Online Test – Multiple Choi

Steam Boilers and Engines Online Test - Multiple Choice Questions and Answers,online quiz,online bits,interview questions and answers pdf free download Skip to content Engineering interview questions,Mcqs,Objective Questions,Class Notes,Seminor topics,Lab Viva Pdf free download.

Steam Boiler - Definition, Working Principle, Types, a

Generally, a steam boiler is a type of closed container, designed with steel for heating the water to generate steam by some energy source like burning of fuel with eventually. The vapor generated may be delivered at low-pressure for the industrial progression work in sugar industries, cotton mills, and for generating steaming water that can be utilized for heat up fixing at much low-force.

Steam Boilers and Engines - Mechanical Engineeri

Jan 10, 2017· Safety valve. This type of valve is used to keep the boiler safe by controlling the working pressure in the boiler and resist the blasting due to the high pressure; the valve is mounted with boiler. Stop valve. This type of valve is used to control the flow of …

Study 17 Terms | Boilers Test Flashcards | Quizl

While the boiler is in operation, shut off the feedwater pump and slowly open the bottom blow valve to drain the water from the boiler. The low water cutoff should shut down the burner before the water level goes out of sight low; if the burner does not shut off. restart the feedwater pump before the water level goes out of sight and immediately troubleshoot the low water cutoff to determine

Steam Boilers MCQs with Answers - Set 24 - ObjectiveBoo

8. Blow off cock in a boiler is used to (A) Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required (B) Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler (C) Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit

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

0086-510-68530066, +86-13506151292

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