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High Efficient Boiler Air Preheater Naturally Circulated For Power Station ASME Standard

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High Efficient Boiler Air Preheater Naturally Circulated For Power Station ASME Standard

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Brand Name :	HDB
Model Number :	Air Preheater
Certification :	ISO9001,ASME,Grade A,SGS,EN
Price :	Negociable
Payment Terms :	L/C, T/T, Western Union
Supply Ability :	500 Tons per Month
Delivery Time :	30 days after deposit

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High Efficient Boiler Air Preheater Naturally Circulated For Power Station ASME Standard

Naturally Circulated High Efficient Boiler Air Preheater for Power Station ASME Standard

Product Description

Air pre-heater is a kind of equipment used to improve the heat exchange performance and reduce energy consumption of the boiler, which means that the flue gas in the tail flue of the boiler will preheat the air before entering the boiler to a certain temperature through the internal radiator. Air preheater is generally divided into three types: plate type, rotary type and tube type. Taking the rotary type as an example, the working principle of air preheater is introduced. A large number of unburned combustibles will deposit on the heat transfer elements, which may cause the air preheater to ignite. The causes of ignition and the countermeasures are described in detail. The shutdown analysis and air leakage control are also introduced in detail.

Different types

For the use in Steam Generators (boilers)in Thermal power stations of Utility power stations, there are two types of design of the Airpreheaters. One is a tubular type built into the boiler outlet Flue_gas ducting and another one is of the regenerative type known as Ljungstrom (named after the name of inventor) Regenerative Air Pre Heater(RAPH),a rotating type. This may be horizontal (now very common in power generation utilities) or vertical.

Parameter

Name	Thermal efficiency improving coal fired industrial steam boiler combustion APH air preheater
Material	Carbon steel or equivalent
Structure	vertical
Tubes	enameled seam or seamless tubes
Tube OD	as required
Enamel thickness	0.34+/-0.06mm
Size	Customzied design

Product advantages

1. High corrosion resistance property;

2. Small covering area;

3. Pipe and tube plate in every link between separated, the heated bilges cold heat distortion is not bound to avoid stress destruction;

4. Single pipe, tube single or parts of equipment failure does not affect the heat normal operation, two fluid were heat tube, can go outside fin

Parameters

Layout item	Horizontal layout	Vertical layout
Tube arrangement	staggered arrangement / in-line arrangement	staggered arrangement / in-line arrangement
Sealing of pipe and plate	Packing heat- resistant material/ welding	welding
Anti-wearing	a,when gas scours external tube, welcoming smoke tubes have protective tile b,when gas scours inside tube,wear casing pipes are installed in gas inlet.

Company Information

The products of our company have been widely used in major power plants of various provinces and cities in China, bringing stable and significant economic and social benefits to cooperated power plants. At the same time, we attach great importance to product development and strive to improve product quality. Through the cooperation with a number of domestic and foreign companies, we constantly explore the international market.

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