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Place of Origin: | China |
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Brand Name: | Dehai Boiler |
Certification: | ISO9001 , SGS , ABS , ASME |
Model Number: | Economizer |
Minimum Order Quantity: | 10 Tons |
Price: | Negotiable |
Packaging Details: | Seaworthy packing |
Delivery Time: | 45 Days |
Payment Terms: | L/C, T/T |
Supply Ability: | 800 Tons / Month |
Company Type: | Manufacturer | Type: | Finned Tube |
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Keywords: | H Fin Tube Boiler Economizer | Quality: | High |
Color: | Black Or Red | Warranty: | 1 Year |
High Light: | fin tube radiator,finned copper tubing |
H fin bundle economizer seamless tube waste heat hot water boiler spare parts
H Finned Tube Economizer
1. The Economizer is a device installed in the lower part of the flue of the boiler to recover the waste heat of the exhausted flue gas, and the boiler feed water is heated to the heated surface of the saturated water under the steam drum pressure, because it absorbs the heat from the high temperature flue gas, and cools down the exhaust gas temperature of the flue gas saves energy and improves efficiency, so it is called an economizer.
2.The steel tube type economizer is not limited by pressure and can be used as a boiling type, and is generally made of a carbon steel pipe having an outer diameter of 32 to 51 mm. Fins and ribs are sometimes added to the tube to improve heat transfer. The steel tube type economizer consists of horizontally arranged parallel elbow tubes(known as serpentine tubes).
Economizers are mainly used in industry, and are gradually becoming popular in agriculture and some related industries.
Classification
There are many ways to classify economizers, which can be classified as follows:
1. According to the degree of heating of the feed water: it can be divided into non-boiling type and boiling type.
2. According to the manufacturing materials: there are two kinds of cast iron and steel tube economizer. Non-boiling type economizers are mostly made of cast iron, but they are also made of steel pipes, while boiling type economizers can only be made of steel pipes. Cast iron economizers are mostly used in boilers with a pressure of ≤2.5MPa. If the pressure exceeds 2.5 MPa, an economizer made of steel pipe should be used.
3. According to the form of the device: there are two types of vertical and horizontal.
4. According to the relative flow direction of smoke exhaust and feed water: there are three types: downstream, countercurrent and hybrid.
5. According to the structure: light pipe economizer and fin type economizer. The fin type economizer includes: an H-type economizer (used more) and a spiral fin economizer.
6. According to the form of heat conduction: direct conduction and indirect conduction;
Direct conduction is to directly use the boiler exhaust gas to directly preheat the boiler water; indirect conduction is to indirectly preheat the boiler water through the heat conduction medium; after the 1990s, the indirect conduction technology developed rapidly in the country, and made great breakthroughs in technology, mainly with heat conduction. Oil technology patent and superconducting energy saving technology patent. Especially since the beginning of the 21st century, the aerospace super-thermal material technology has been at the forefront of the world's boiler energy-saving field.
Principle
1. H fin tube is a kind of boiler parts, to have two steel circular symmetry to be welded on fluorescent tubes to form fins positive shap much like letter "H", so called H-fin tube. H-economizer widely used in utility boilers, industrial boilers, marine power, such as the tail of heat exchanger components.
2. H-economizer two rectangular fin, similar to a square, its edge length for the fluorescent tubes of 2-fold, an expansion of the heating surface.
3. H-economizer flash resistance welding processes used, the welding seam after the high rate of fusion, weld tensile strength, and has good thermal conductivity. H-economizer can also manufacture dual tube "double H" type fin tubes, its rigid structure, and can be applied to a longer tube row occasion.
Scope of H Finned Tube
Items | General Materials | Popular ASTM /ASME Materials |
Core Tube Material | Carbon Steel Alloy Steel Heat Resistant Steel, Stainless Steel | 1. Carbon Steel: A106 / A179 /A192 / A210 etc... 2. Stainless Steel: TP304/304L,TP316/TP316L, TP347 etc... 3. Alloy Steel: P5,T5,P9,T9,T11,T22 |
Studs Material | Carbon Steel Stainless Steel | 1. Carbon Steel |
Descriptions of HH Fin Tube | Popular Specifications we make |
Tube OD(mm) | 25mm to 51mm |
Tube Wall thickness(mm) | 2.5mm Min. |
Tube length(mm) | 20000mm Max. |
Fin thickness(mm) | 1.5mm to 3.5mm |
Fin pitch(mm) | 10mm Min. |
Please email us for more information. |
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