Dependable Serpentine Tube For Economizers In Boilers With Low Installation Cost
What are the advantages of serpentine tubes?
Compact design, high heat transfer efficiency, and uniform thermal expansion.
Descriptions
Economizers (or economisers) are devices that cut energy use—like preheating fluids. The term gets used in other ways too, but here we’re talking about their roles in boilers, power plants, heating, refrigeration, ventilation, and HVAC. Simply put, an economizer is a heat exchanger.
In boilers, these heat exchangers warm fluids (usually water) up to—but not past—their boiling point. They’re called “economizers” because they use heat from streams that are hot but not hot enough for the boiler itself. This reclaims extra energy, making the boiler more efficient. They basically use boiler exhaust gases to preheat the feedwater, saving energy in the process.
Our economizer is made with high-frequency welding: steel strips are automatically spiral-welded onto plain tubes in a specific structure. Then we bend the remaining plain tube parts and assemble them as needed. The payoff? Same diameter and length, but a bigger heat transfer area.
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Product Name
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Power Plant Boiler Single Serpentine With SS / CS / Alloy Material
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Structure Type
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Tube Coil Serpentine Coil
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Tube Material
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Corten Steel, ND Steel (09CrCuSb)
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Manufacturer Grade
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China A Grade
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Tube Type
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Bare Tube
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Tube Specification
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As Customers' required
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Tube Wall Thickness
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As Customers' required
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Working Pressure
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Depends on the material
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Working Temperature
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Depends on the material
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Welding
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Automatic GTAW (TIG) tube butt welding
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Welding NDT
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Automatic RT 100%
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Technical Parameter
| Model |
Name |
Specification |
Quantity |
Working Pressure |
Single Row Water Pressure Test
MPa
|
Integral Test Pressure
MPa
|
| 35T/h CFB/CFBB/CFBC Boiler |
Bare Tube Economizer |
32*3;
20-GB3087
|
124 Rows
(Including high temperature, medium temperature and low low temperature three sections)
|
4.54MPa |
9.1MPa |
5.25MPa |
| 35T/h CFB/CFBB/CFBC Boiler |
Spiral Fin Tube Economizer |
32*3;
20-GB3087
|
50 Rows (Including high temperature and low temperature sections) |
4.54MPa |
9.1MPa |
5.25MPa |
| 35T/h Chain Grate Boiler |
Spiral Fin Tube Economizer |
38*3;
20-GB3087
|
46 Rows Rows (Including high temperature and low temperature) |
4.54MPa |
9.1MPa |
5.25MPa |
| 35T/h Chain Grate Boiler |
Bare Tube Economizer |
38*3;
20-GB3087
|
99 Rows (Including high temperature, medium temperature and low low temperature three sections) |
4.54MPa |
9.1MPa |
5.25MPa |
| 35T/h Chain Grate Boiler |
Bare Tube Economizer |
32*3;
20-GB3088
|
99Rows (Including high temperature, medium temperature and low low temperature three sections) |
4.54MPa |
9.1MPa |
5.25MPa |
| 35T/h CFB/CFBB/CFBC Boiler |
Bare Tube Economizer |
32*3;
20-GB3087
|
93 Rows (Including high temperature, medium temperature and low low temperature three sections) |
4.73MPa |
9.5MPa |
5.93MPa |
| 35T/h CFB/CFBB/CFBC Boiler |
Bare Tube Economizer |
32*3;
20-GB3087
|
108 Rows (Including high temperature, medium temperature and low low temperature three sections) |
4.73MPa |
9.5MPa |
5.93MPa |
| 48T/h CFB/CFBB/CFBC Boiler |
Spiral Fin Tube Economizer |
38*4;
20G-GB5310
|
45 Rows |
10.92MPa |
21.84MPa |
12.64MPa |
| 75T/h CFB/CFBB/CFBC Boiler |
Bare Tube Economizer |
32*3.5;
20G-GB5310
|
156 Rows (Including high temperature, medium temperature and low low temperature three sections) |
6.28MPa |
12.56MPa |
7.27MPa |
| 75T/h CFB/CFBB/CFBC Boiler |
Bare Tube Economizer |
32*3.5;
20G-GB5310
|
114 Rows (Including high temperature, medium temperature and low low temperature three sections) |
4.7MPa |
9.1MPa |
5.25MPa |
| 75T/h CFB/CFBB/CFBC Boiler |
Spiral Fin Tube Economizer |
32*3;
20-GB3087
|
72 Rows (Including high temperature, medium temperature and low low temperature three sections) |
4.54MPa |
9.1MPa |
5.25MPa |
| 75T/h CFB/CFBB/CFBC Boiler |
Spiral Fin Tube Economizer |
32*3;
20G-GB5310
|
72 Rows (Including high temperature and low temperature sections) |
6.28MPa |
12.56MPa |
7.27MPa |
| 75T/h CFB/CFBB/CFBC Boiler |
Bare Tube Economizer |
32*4;
20G-GB5310
|
114 Rows (Including high temperature, medium temperature and low low temperature three sections) |
6.28MPa |
12.56MPa |
7.27MPa |
| Materials |
Carbon Steel Or Alloy Steel |
| Type |
bare tube economizer;finned tube economizer; spiral finned tube economizer;cast iron economizer for power plant/station boiler and industrial/commercial boilers; |
| Brand |
Jinan Yuanda |
| Application |
Boiler heat exchanger parts for Coal Fired Steam Boiler/Coal Fired Hot Water Boiler/CFBB bed boiler |
| Remarks |
Customized order is also accepted. |
Company profile
Zhangjiagang Hua Dong Energy Technology Co., Ltd. is a high-tech enterprise specialized in producing all kinds of stainless, carbon and alloy steel tubes and pipes, steel plates which are widely used in the field of boiler&heat exchanger, energy, petrochemical, mining, food, paper, gas and fluid industry. And we have passed the attestations including ASME, TUV, Grade A, ISO9001, EN12952, EN10216, SO3834.
The company is the subsidiary of Zhangjiagang Hua Dong Boiler Co., Ltd, which is the most leading boiler and boiler parts manufacturer in China with a history of 35 years and annual turnover of 110 million U.S.A. dollars. Our products have been exported to over 30 countries like United States, Australia, Vietnam, Pakistan, Albania, Cambodia, India, Indonesia, South Korea, the Philippines, Turkey, Saudi Arab, Germany, Russia, Chile, Syria, Thailand, Bangladesh, France, Algeria, Mongolia and Singapore, Cuba, Iraq, Italy, Spain, Japan, Yugoslavia, Sri Lanka, the Czech republic, kyrgyzstan, Canada, Malaysia, the United Kingdom and so on.
Advantages
3.1. Excellent anti-wear performance
3.2. Compact structure
3.3. High thermal efficiency
3.4. Stability
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