Nickel-Based Heat Exchanger
Products Description
Nickel-based heat exchangers use nickel-based as the core heat exchange elements, consisting of tube bundles, shells, tube sheets, baffle plates, and other components. The tube bundles form a multi-channel structure through precise arrangement. Cold and hot fluids flow countercurrently in the tube side and shell side, respectively, and heat transfer is achieved through the tube walls. The baffle plates guide the shell-side fluid to form a spiral flow, enhancing the degree of turbulence, which increases the heat transfer coefficient by 30%-50% compared with traditional smooth tubes.
Nickel-based heat exchanger Parameters
| Item | Typical Range / Parameters |
|---|---|
| Material | Nickel-based alloys such as Inconel 625, Hastelloy C-276, Incoloy 800H, etc. |
| Temperature resistance range | -200℃ to 1300℃ (Inconel 625 can withstand up to 1200℃ for short periods; silicon carbide coating can reach 1800℃) |
| Design pressure | Vacuum to 25MPa (high-pressure models up to 30MPa) |
| Heat transfer coefficient | 80-150 W/(m²・K) (up to 1500 W/(m²・K) after optimization; coiled tube design reaches 13600-14000 W/(m²・K)) |
| Heat exchange area | Up to 36,000 square meters per unit |
| Tube diameter | Φ6-25mm (Φ8-12mm high-purity tubes are commonly used in LNG liquefaction) |
Product Advantages
High temperature and pressure resistance: The nickel-based alloy tube bundle can operate stably in a hydrogen environment at 1200℃ for more than 50,000 hours, and the nickel-based alloy heat exchanger can handle residual oil hydrogenation under a high pressure of 22MPa.
Resistance to strong corrosion: In the pickling section of hydrometallurgy, the annual corrosion rate of nickel-based alloys is less than 0.025mm, which is 1/20 of that of carbon steel; it is resistant to highly toxic media such as hydrofluoric acid and hydrogen sulfide.
Waste heat recovery: In the waste heat recovery in the iron and steel industry, a single nickel-based shell-and-tube heat exchanger saves 12,000 tons of steam per year, and the comprehensive energy consumption per ton of steel is reduced by 12kgce.
Convenient maintenance: The modular design supports on-line expansion. The replacement time of a single tube bundle of the nickel-based heat exchanger is shortened to 2 hours, and the number of unplanned shutdowns is reduced by 70%.
Typical Application Cases
Chemical Industry: A PTA production plant adopts nickel-based alloy heat exchangers, which increases the heat recovery rate of oxidation reactions by 18% and reduces CO₂ emissions by 80,000 tons per year.
Power Industry: In 600MW supercritical units, the equipment recovers flue gas waste heat, increasing power generation efficiency by 1.5% and saving 100,000 tons of standard coal annually.
ABOUT US
GNEE was founded in 2008 and is located at No.4-1114, Beichen Building, Beicang Town, Beichen District, Tianjin, China. It is an entity enterprise engaging in high-end industrial equipment manufacturing, focusing on the R&D, manufacturing and related technical services of industrial heat exchange equipment and pressure vessels.
Since its establishment, the company has adhered to the philosophy of "achieving customers, making employees happy; embracing changes, valuing actions; there is no best, only better". With the goal of providing one-stop services to make choices easier, it has been deeply engaged in industrial heat exchange equipment for many years and has become an excellent and irreplaceable presence in the industry.
If you require other types of heat exchangers, please visit our products and services page or email us at info@gneeheatex.com.
FAQ
Q: How could we confirm the products?
A: Our professional engineers will follow up all the designs and ajustments according to your requirement.OEM and ODM available.
Q: What services can we provide?
A:Accepted Delivery Terms: FOB,CFR,CIF,EXW,DDP,DDU,Express Delivery;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,Credit Cardl,Western Union,Alipay;
Q: How can I know your machine works well?
A: Before delivery, we shall test the machine working condition for you.
Q: What's your MOQ?
A: 1 set.
