Sign In | Join Free | My chinacsw.com
China Zhangjiagang HuaDong Boiler Co., Ltd. logo
Zhangjiagang HuaDong Boiler Co., Ltd.
Zhangjiagang HuaDong Boiler Co., Ltd.
Verified Supplier

8 Years

Home > Boiler Air Preheater >

Tubular Rotary Air Preheater / Gas Air Heat Exchanger Heating Elements

Zhangjiagang HuaDong Boiler Co., Ltd.
Trust Seal
Verified Supplier
Credit Check
Supplier Assessment

Tubular Rotary Air Preheater / Gas Air Heat Exchanger Heating Elements

Brand Name : HD BOILER

Model Number : RAPH

Certification : ISO9001 , SGS , TUV , ASME , EN

Place of Origin : China

MOQ : 1 Set

Price : Negotiable

Payment Terms : L/C, T/T, Western Union

Supply Ability : 400 Tons per Month

Delivery Time : 50-100 Days

Packaging Details : Seaworthy Packing

Condition : New

Type : Rotating Type ( RAPH )

Surface Treatment : Painted

Structure : Fire / Water Tube

Style : Horizontal and Vertical

Specification : Customized

Contact Now

Tubular Rotary Air Preheater / Gas Air Heat Exchanger Heating Elements

(RAPH)

In this rotating type (RAPH) the casing divides the same into two (bi sector type) or three (tri sector type) sectors by ducts connected to it. The seals on the casing and on the rotor divide the gas and air paths and the keep the gas/air leakages between the three sectors to minimum. Three sector types are very common now a days in power generation utilities.


Product Description

Air preheater is a general term and represents any heater designed to heat air. It may be for residential use namely for room heating, house heating, etc. by means of gas, electricity or oil etc. In the present context reference is to the airpreheaters used in steam generators (boilers) for generation of electricity in Power Generation Utilities.

The purpose of the air preheater is to recover the heat from the flue gas(exhaust gases) from the boiler to improve boiler efficiency. Incidentally the gases are sent to the chimney or stack at lowered temperature so that the design of the ducting and the stack becomes simplified. Also it controls the temperature of gases coming out of the stack.

Tubular Rotary Air Preheater / Gas Air Heat Exchanger Heating Elements

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.

Construction features

1. The vertical rotor of the same is supported on big thrust bearings at the lower side and has oil bath lubrication cooled by water circulating in the coils inside the oil bath. This arrangement is done for cooling of the shaft as this end of the vertical rotor is on the hot end of the ducting as well. The top end of the rotor has simple roller bearing to hold the rotating shaft in vertical position only.

2. The rotor is built up on the vertical shaft with radial supports and cages for holding the baskets in position. Radial and circumrential renewable seal plates are also provided to avoid leakages of gases or air between the sectors or between the duct and the casing, while in rotation.

Tubular Rotary Air Preheater / Gas Air Heat Exchanger Heating Elements

Certificate

Tubular Rotary Air Preheater / Gas Air Heat Exchanger Heating Elements

Company Introduction

Established in 1985,Zhangjiagang Hua Dong Boiler Co.,Ltd.(trading as HD Boiler),produces power plant; industrial; waste heat; waste incineration; biomass; organic heat carrier and electric steam boilers. Coupled with a comprehensive range of heating surfaces, HD Boiler brings to the market a unique service including boiler design , fabrication, installation, maintenance and replacement of boiler pressure parts.

Tubular Rotary Air Preheater / Gas Air Heat Exchanger Heating Elements


Product Tags:

Rotary boiler air preheater

      

tubular type preheater in boiler

      

Painted Boiler Air Preheater

      
Quality Tubular Rotary Air Preheater / Gas Air Heat Exchanger Heating Elements for sale

Tubular Rotary Air Preheater / Gas Air Heat Exchanger Heating Elements Images

Inquiry Cart 0
Send your message to this supplier
 
*From:
*To: Zhangjiagang HuaDong Boiler Co., Ltd.
*Subject:
*Message:
Characters Remaining: (0/3000)
 
Inquiry Cart 0