ASME Energy Saving Exhaust Gas Economizer In Boiler For Power Station

ASME Energy Saving Exhaust Gas Boiler Economizer for Power Station

Product Information

• Boiler economizer is installed on the lower part of the boiler tail flue for recycling the waste heat of smoke, a device heating boiler feed water into steam drum pressure of saturated water heating surface, due to its high temperature flue gas heat, reduces the exhaust temperature of flue gas, save the energy, improve the efficiency, so called the Economizer.
• Steel tube economizer is not limited by pressure, can be used as a boiling type, generally from the outer diameter of 32 ~ 51 mm carbon steel tube.Fins and fins are sometimes added to the tube to improve heat transfer.The tubular economizer consists of horizontally arranged parallel elbow pipes (commonly known as serpentine pipes).

Classification

There are many ways to classify coal economizer, which can be classified as follows:

1. According to the degree of heating water: can be divided into non-boiling type and boiling type of two.
2. According to the manufacturing materials: cast iron and steel pipe economizer two.Non-boiling economizers are mostly made of cast iron, but they are also made of steel pipes, and boiling economizers can only be made of steel pipes.Cast iron economizer is mostly used in boilers with pressure 2.5mpa.If the pressure exceeds 2.5mpa, the economizer made of steel pipe shall be used.
3. According to the form of the device: vertical and horizontal two.
4. According to the relative flow direction of smoke exhaust and water supply, there are three types: forward flow type, reverse flow type and mixed type.
5. According to the structure of the form: light tube economizer and fin economizer.Finned economizer includes: H type economizer (used more) and screw fin economizer.
6. According to the form of heat conduction: direct conduction and indirect conduction;

Characteristics

1. This type of economizer can largely develop the heat exchanging area than the bare economizer to add the heat transfer area, reduce the volume, compact structure and reduce the number of elbow and welding to make less leakage and add the heat transfer efficiency.
2. Not easy to collect dust and the fume pass through the fin tube to form the boundary layer to occur the vortex to make less chance for the fly ash particle to touch the tube wall.
3. Widely temperature range, high pressure limit.
4. Durable strong impact, reliable operation.
5. less fume resistance, reduced abrasion and long working life.
6. Beautiful appearance, simple fabrication process.
7. Diverse layout.
8. Ease of installation, ease of construction.
9. A wide range of working pressure .

Company Introduction

Our products' quality is ensured by advanced, excellent facilities and manufacturing equipment. We have introduced 400 sets of advanced processing and inspection equipment, including plasma cutting machine, NC drilling equipment, automatic welding system, welding equipment and real-time online imaging detection system, etc., which successfully ensure excellent quality of our products.

Hua Dong Boiler Co., Ltd. is a high-tech enterprise specialized in manufacturing boilers. Established in early 1985s, has two manufacturing bases, this company covers 400,000㎡ with fixed assets amounting to USD 110,000,000. There are 1100 employees including 150 technicians and 600 coded welders. Hua Dong holds the manufacturing licenses for Grade A boilers and Grade A1&A2 pressure vessels issued by Chinese General Administration of Quality Supervision, Inspection and Quarantine; also it holds the "S" and "U" "NB" stamps issued by American Society of Mechanical Engineers; meanwhile, this Company has passed the certification of ISO9001, SO3834, EN12952 Quality Management System.

"Hua Dong" boilers include Utility Boiler, HRSG Boiler, coal-fired , oil(gas) -fired, coal-water-slurry-fired and garbage-fired steam/hot water boilers, organic heat carrier boilers, etc., and Boiler spare parts (Economizer, Finned tube, Header, Steam drum, Superheater, Water wall panel, Air preheater, Cyclone separator, etc., which are widely used in power generation, heat supply, chemical engineering, textile, food, paper, road building, plastic, rubber and wood working industries. "HD" boilers are honored as "Famous Production in Jiangsu Province", " Jiangsu High-Tech Product" and "Jiangsu Energy-Saving Product". "HD" brand is a "Famous Brand in Jiangsu Province". We are a qualified supplier for the top three boiler manufacturers in China(Harbin Boiler Co., Ltd., Dong Fang Boiler Group Co., Ltd., Shanghai Boiler Works Ltd.,). So far, Hua Dong Boilers have served 10000 customers, which sell well all over China and are exported to USA, Australia, Russia, Kazakhstan, India, Indonesia, South Africa, Brazil, and Southeast Asia.

We strive to manufacture "Safe, Efficient, Energy-Saving and Environment-Friendly" boilers, provide new-type products in excellent quality, serve users sincerely to their satisfaction, and be a top supplier of boilers in China.

Declaration

Zhangjiagang Hua Dong Boiler Co.,Ltd has no subsidiaries. 

Packaging & Shipping

Company Business

Our products have been wildly used in power plants and large international companies overseas.