Heat exchanger
Cross flow heat exchanger,
Counter flow heat exchanger,
Rotary heat exchanger,
Steam Heating Coil
Bridges cutting-edge technology with global trade opportunities, fostering sustainable industrial growth.
Dedication And Professional Success
We specialize in the production of cross flow and counter flow heat exchangers, rotary heat exchangers, heat pipe heat exchangers, as well as air conditioning units and heat recovery units developed using heat exchange technology
Heat recovery
Waste heat recovery from flue gas,Heat pump drying waste heat recovery,Mine exhaust heat extraction
Air handling unit
Hygienic Air Handling Unit,
AHU With Heat Recovery,
Thermal wheel AHU,
AHU chilled water coil
Fresh air system
Heat recovery fresh air ventilator,Heat pump fresh air ventilator,Unidirectional flow fresh air fan,Air purifier
Main scenes
Air to air heat exchangers are widely used in boiler flue gas waste heat recovery, heat pump drying waste gas waste heat recovery, food, tobacco, sludge, printing, washing, coating drying waste gas waste heat recovery, data center indirect evaporative cooling systems, water vapor condensation to remove white smoke, large-scale aquaculture energy-saving ventilation, mine exhaust heat extraction, fresh air system heat recovery and other fields
Application scenarios
If you have a need for air to air heat exchangers, you can contact us
Industrial waste heat recovery captures and reuses heat generated during industrial processes that would otherwise be lost, improving energy efficiency and cutting costs. Here’s a concise overview:
How It Works
- Sources of Waste Heat: Heat from exhaust gases, cooling systems, or equipment surfaces in industries like manufacturing, steel, cement, or power generation.
- Recovery Methods:
- Heat Exchangers: Transfer heat from hot gases or liquids to preheat air, water, or other fluids (e.g., shell-and-tube or plate heat exchangers).
- Organic Rankine Cycle (ORC): Converts low-grade heat into electricity using organic fluids.
- Heat Pumps: Upgrade low-temperature heat to higher, usable levels.
- Thermal Storage: Store excess heat for later use (e.g., molten salts or phase-change materials).
- Direct Use: Redirect heat for space heating, drying, or preheating raw materials.
Benefits
- Energy Savings: Recovering 20-50% of waste heat can reduce energy consumption significantly.
- Cost Reduction: Lower fuel and electricity bills; payback periods often 1-5 years.
- Emissions Reduction: Less energy use means lower CO2 and pollutant emissions.
- Process Efficiency: Enhances overall plant performance.
Applications
- Industries: Steel (blast furnaces), cement (kilns), glass, refineries, and food processing.
- Examples:
- Preheating combustion air in furnaces.
- Generating electricity via ORC in chemical plants.
- District heating using recovered heat.
Cold recovery refers to the process of capturing and reusing low-temperature energy, often in the form of chilled air, water, or other cooling media, that would otherwise be wasted in industrial, commercial, or HVAC systems. The goal is to improve energy efficiency by redirecting this "cold" energy for cooling purposes elsewhere in a system or facility.
- How it works: Cold recovery systems typically use heat exchangers or refrigeration cycles to extract low-temperature energy from exhaust air, process fluids, or other sources. This recovered cold energy can be used for space cooling, refrigeration, or to pre-cool incoming air or fluids.
- Applications: Common in data centers, food processing plants, and industrial refrigeration systems. For example, cold exhaust air from a freezer can be reused to pre-cool incoming warm air.
- Benefits: Reduces energy consumption, lowers operational costs, and minimizes environmental impact by decreasing the demand for additional cooling energy.
Heat Recovery
Heat recovery involves capturing and reusing waste heat generated from industrial processes, HVAC systems, or other energy-intensive operations. This recovered heat, which would otherwise be lost to the environment, is repurposed for heating, power generation, or other thermal applications.
- How it works: Heat recovery systems use technologies like heat exchangers, heat pumps, or thermal storage to capture excess heat from exhaust gases, hot water, or equipment. The recovered heat can be used to preheat water, provide space heating, or drive processes like steam generation.
- Applications: Widely used in manufacturing, power plants, and commercial buildings. For instance, waste heat from an industrial furnace can be used to heat water for facility use.
- Benefits: Enhances energy efficiency, reduces fuel consumption, lowers greenhouse gas emissions, and cuts operational costs.
Key Differences
- Temperature Focus: Cold recovery deals with low-temperature (cooling) energy, while heat recovery focuses on high-temperature (heating) energy.
- Applications: Cold recovery is more specific to cooling needs, while heat recovery has broader applications, including heating and power generation.
High-temperature heat exchangers must withstand extreme thermal conditions, corrosion, and mechanical stress. Therefore, the materials used are carefully selected for their thermal stability, oxidation resistance, and mechanical strength. Common materials include:
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Stainless Steel (e.g., 304, 316, 310, 321)
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Good corrosion resistance and mechanical strength
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Suitable for temperatures up to ~800°C (depending on the grade)
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Inconel (e.g., Inconel 600, 625, 718)
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A nickel-chromium alloy with excellent resistance to oxidation and creep at temperatures up to ~1000°C
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Common in aerospace, chemical, and power plant applications
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Hastelloy
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Nickel-molybdenum alloys known for corrosion resistance under severe conditions
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Useful in high-temperature, chemically aggressive environments
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Titanium and Titanium Alloys
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Excellent corrosion resistance, moderate high-temperature performance (~600°C)
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Often used in heat exchangers exposed to seawater or aggressive chemicals
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Ceramics (e.g., Silicon Carbide, Alumina)
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Extremely high temperature resistance (>1200°C)
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Brittle, but ideal for specialized high-temp gas heat exchangers
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Carbon Steel
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Cost-effective and strong, but less resistant to corrosion and oxidation
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Typically used in applications below ~425°C
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Aluminum Oxide-Coated Metals
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Coatings help extend the temperature range and protect from oxidation
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Ship engines and other equipment generate a large amount of waste heat during operation, which is usually discharged into the environment through cooling water and other means, resulting in energy waste. Heat exchangers can transfer waste heat to other media, such as transferring the heat from engine cooling water to hot water or hot oil systems, for use in ships' hot water supply, heating, or other places that require thermal energy.
Our heat exchanger adopts high-efficiency heat transfer materials and innovative structural design, with excellent heat exchange efficiency. The core components are made of special metal alloy materials, greatly improving thermal conductivity. At the same time, the optimized flow channel design allows hot and cold fluids to fully contact inside the heat exchanger, ensuring that waste heat can be quickly and efficiently transferred. Taking the waste heat recovery of ship engines as an example, when the high-temperature cooling water generated by the engine flows into one side of the heat exchanger, the low-temperature medium (such as hot water or hot oil) on the other side exchanges heat with it. Through the efficient operation of our heat exchanger, the heat of the cooling water can be fully extracted for use in ship hot water supply, cabin heating, and other applications.
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