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internal condition of boiler

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.

RDF-fired Internal Circulation Fluidized Bed Boiler Long

File Size: 22KB The overall view of the internal circulation fluidized bed boiler is shown in Fig. 2. 3 Measures against the thinning of embedded tubes While this internal circulation fluidized bed boiler normally co-fires waste-derived RDF and coal, it is also capable of mono-firing RDF. Accordingly, it features an anti-corrosion measure based on the


44. condition of surface blow and/or continuous blow if fitted 45. what type of boiler feeding apparatus is used (pump, injector, return trap, gravity, etc.) 45a. describe same 46. condition of boiler feeding apparatus. 47. general internal condition of boiler 48. condition of the baffles. 49. condition of the calking between tube headers 50.

Common Chemicals Used in Boiler Water Treatment - Sensor

If you want your boiler to remain in good condition and be as efficient as possible, it’s important that the water remains free from impurities, which means that water treatment will be necessary. There are two methods that can be used for the treatment of boiler water, which …

Boiler Inspection | Marine Boile

Boiler headers are the water feeders to the generating tubes in boiler. The headers are connected in between the steam drum and the water drum. Rear and Side Wall Headers: Sufficient doors or handhole plugs to remove for assessment of internal condition of headers and tubes. Check for pitting and corrosion of headers, rear walls, floors

Guide for the Extension of Boiler Internal Inspectio

Guide for the Extension of Boiler Internal Inspections. INTRODUCTION. Under T.C.A. §68-122-110(a), each boiler used or proposed to be used within this state, except boilers exempt in §68-122-105, shall be thoroughly inspected as to their construction, installation, condition and operation as follows:

Boiler water treatment - Lennte

The reactions occur either in the feed lines or in the boiler proper. Internal treatment may be used alone or in conjunction with external treatment. Its purpose is to properly react with feed water hardness, condition sludge, scavenge oxygen and prevent boiler water foaming. external External treatment

Maintaining Proper Boiler Inspections Through Prop

An internal boiler inspection consists of all waterside areas of the vessel (steam, blow-off, and water connections), and fireside conditions, as well as dearators, superheaters, and economizers. While evidence of internal corrosion and scale, leaks, overheating, and flame impingement are noted and documented in the boiler inspector's report

Power Engineering 4th Class Ch 141 Flashcards | Quizl

When shutting down a boiler for internal cleaning, you should: Choose one answer. a. Shut down the boiler, then fill it completely with chemically treated water b. Shut off the fire, drain, open up and flush c. Allow the boiler to cool; then drain, open up and flush it d. …

Boiler Informati

A boiler should be examined internally and externally to determine the operating condition of the boiler and to ascertain the true condition of the boiler. Boiler inspectors examine the structural integrity of the boiler along with the associated safety devices attached to the boiler.


Another boiler internal fitting is the desuper­heater. It maybe located either in the steam drum or in the water drum. All the steam generated in a single-furnace boiler is led through the superheater. However, since some auxiliary machinery is not designed for superheated steam, the steam must be cooled down.

66- Internal Feedwater Treatment Flashcards | Quizl

Internal water treatment is a) used with low pressure boilers only b) adding chemicals to the boiler water c) adding a coagulant to the settling tank d) measuring the pH of the feedwater e) adding chemicals to the steam in the boiler

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

0086-510-68530066, +86-13506151292

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