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Plate heat exchanger is a new type of high-efficiency heat exchanger made of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. Plate heat exchanger is an ideal equipment for liquid-liquid and liquid-steam heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, easy installation and cleaning, wide application, and long service life. Under the same pressure loss, the floor area is one-third of that of the tube heat exchanger, and the heat recovery rate can be as high as 90% or more.
Product Introduction: Elekheat Heat Exchange Equipment Co., Ltd. is a professional manufacturer of plate heat exchangers, tube heat exchangers, shell and tube heat exchangers, oil coolers, shell and tube oil coolers, air coolers, electric heating pipes, electric heaters, condensers and other products.
| Plate dimensions | 604x266x0.5 |
| Single plate heat exchange area: ㎡ | 0.109 |
| Plate spacing: mm | 4 |
| Single channel cross-sectional area: ㎡ | 0.000758 |
| Maximum processing capacity: m³/h | 15~95 |
| Flange diameter: DN mm | 40 |
| Working temperature: ℃ | ≤180 |
| Working pressure: MPa | 0.6~1.0~1.6 |
| Corner hole diameter: mm | 50 |
| Type | Interface Diameter (mm) | Flow (m³/h) | Design Pressure (MPa) | Heat Transfer Area (m²) | Lateral Distance (mm) | Vertical Distance (mm) | Height (mm) | Width (mm) | Installation Size (mm) | Quantity (pieces) |
|---|---|---|---|---|---|---|---|---|---|---|
| TG-3 | 32 | 15 | 2.0 | 4 | 60 | 357 | 480 | 180 | 500 | 100 |
| TG-6 | 50 | 36 | 2.0 | 37.5 | 140 | 640 | 920 | 320 | 1200 | 250 |
| TG-10 | 100 | 140 | 2.5 | 69.5 | 225 | 719 | 1069 | 470 | 1600 | 278 |
| TG-15 | 150 | 360 | 2.5 | 390 | 298 | 1294 | 1815 | 610 | 3000 | 600 |
| TG-20 | 200 | 600 | 2.5 | 340 | 353 | 1478 | 2260 | 780 | 3000 | 400 |
| TG-25 | 250 | 750 | 2.5 | 750 | 439 | 1939 | 2895 | 920 | 3000 | 500 |
| TG-30 | 300 | 1000 | 2.5 | 1295 | 596 | 1842 | 2882 | 1150 | 4800 | 700 |
| TG-35 | 350 | 1000 | 2.5 | 1295 | 596 | 1842 | 2882 | 1150 | 4800 | 700 |
| TG-40 | 400 | 2500 | 2.0 | 2900 | 738 | 2468 | 3711 | 1373 | 6348 | 900 |
| TG-45 | 450 | 4500 | 2.0 | 2950 | 684 | 2724 | 3849 | 1373 | 6348 | 900 |
Plate material and use introduction:
| Material | Application |
| Stainless steel SUS304 SUS316L | Purified water, river water, edible oil, mineral oil |
| Ti tanium and Pal ladium | Seawater, salt water, salt compounds |
| Hadtelloy Alloy | Concentrated sulfuric acid, hydrochloric acid, phosphoric acid |
| Nickel | High temperature and high concentration caustic soda |
Sealing gasket material introduction:
| Material | Application | Working temperature |
| NBR rubber | Water, seawater, mineral oil, salt water | -15-130C |
| BNBR rubber | High temperature mineral oil, high temperature water | 15-140℃C |
| EPDM rubber | Hot water, steam, acid, alkali | -25-150℃ |
| Viton/Fluorine rubber | Strong acid, strong alkali, mineral oil, grease and fuel oil, etc. | 5-200℃C |
| NEOPRENE rubber | Acid, alkali, mineral oil, low molecular weight aliphatic hydrocarbon | 35-130℃ |
| Silicone rubber | High temperature and some corrosive media | 65-200°C |
Applications in Industrial Machinery & Equipment
The performance characteristics of Plate heat exchangers in industrial machinery and equipment are high efficiency, compact design, adaptability to changing conditions, reliability, and the ability to meet the temperature requirements of various industrial applications. Here are some common applications where Plate heat exchangers are used:
Hydraulic Oil Cooling
Plate heat exchangers play a crucial role in the temperature control of hydraulic systems used in industrial machinery. They efficiently cool hydraulic oil, maintaining optimal viscosity and preventing overheating, which can lead to system failures and reduced efficiency.
Process Fluid Heating/Cooling
Plate heat exchangers are essential components in industrial facilities’ process heating and cooling applications. They facilitate efficient heat transfer between different fluids, ensuring precise temperature control in chemical reactions, pasteurization, and sterilization processes.
HVAC Systems
Plate heat exchangers are widely used in HVAC systems for industrial buildings and processes. They enable efficient heat exchange between chilled water and air, or between hot water and air, providing comfortable and controlled environments for workers and equipment.
Waste Heat Recovery
In industrial settings, waste heat recovery is crucial for energy efficiency and sustainability. Plate heat exchangers can effectively capture waste heat from exhaust gases or process streams and transfer it to other fluids for preheating or power generation, reducing energy consumption and emissions.
Steam Condensing
Plate heat exchangers are used to condense steam in various industrial applications, such as power generation and chemical processing. They efficiently transfer heat from steam to cooling water, converting steam back into liquid form for reuse or disposal.
District Heating
Plate heat exchangers are critical components in district heating systems, where heat is generated centrally and distributed to multiple buildings or facilities. They efficiently transfer heat from the central heating source to the individual heating circuits of each building, providing reliable and cost-effective heating solutions.
Cooling Water Systems
Plate heat exchangers are used in cooling water systems to remove excess heat from industrial processes and equipment. They transfer heat from the cooling water to a secondary cooling medium, such as air or a larger body of water, maintaining optimal operating temperatures and preventing equipment damage.
How to Choose the Right Plate Heat Exchanger for Your Industrial Process
In many industries, processes require heating or cooling fluids efficiently. Plate heat exchangers (PHEs) are essential equipment for transferring heat between two fluids. Choosing the right PHE is vital for optimal performance, energy efficiency, and system reliability. Here are the key factors to consider when selecting a PHE:
Consider the Application and Fluids
Assess the specific application and the properties of the fluids involved. What are the flow rates, temperatures, and pressures of each fluid? Are there any corrosive or fouling tendencies? These factors will influence the type of PHE, plate material, and gasket material you need.
Calculate the Heat Transfer Area
Calculate the required heat transfer area based on the desired heat transfer rate, temperature difference, and overall heat transfer coefficient. Ensure the PHE has enough surface area to achieve the desired thermal performance. Consider adding a safety factor to account for fouling and future process changes.
Consider Material Compatibility
Assess the compatibility of the plate and gasket materials with the fluids being used. Corrosive fluids may require special materials like stainless steel, titanium, or exotic alloys. Gasket materials must also be chemically compatible with the fluids and able to withstand the operating temperatures and pressures.
Determine the Thermal Duty
Start by determining the thermal duty of your process. How much heat needs to be transferred between the fluids? What are the inlet and outlet temperatures of each fluid? Make a detailed heat balance to accurately determine the required heat transfer.
Choose the Right Plate Configuration
Ensure that the plate configuration is suitable for your application. Different plate patterns offer varying levels of heat transfer efficiency and pressure drop. Consider factors like flow distribution, turbulence, and fouling potential when selecting a plate configuration.
Evaluate the PHE’s Features
Consider additional features that may be beneficial to your application. Some features to look for include easy maintenance, compact design, and flexibility for future expansion. These features can reduce downtime and increase the overall lifespan of the PHE.
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The Ultimate Plate Heat Exchanger Buying Guide: Everything You Need to Know
Looking to buy a plate heat exchanger? This comprehensive guide covers everything from types and applications to sizing, materials, and maintenance. Find the perfect PHE for your needs and ensure optimal performance and efficiency. Learn how to choose the right plate heat exchanger and avoid costly mistakes.
What is a Plate Heat Exchanger?
- Basic Principle of Operation
- Key Components (Plates, Gaskets, Frame)
- Advantages of Plate Heat Exchangers over Shell and Tube
Types of Plate Heat Exchangers:
- Gasketed Plate Heat Exchangers (GPHE):
- Description and Common Applications
- Advantages: Flexibility, Easy Maintenance
- Disadvantages: Temperature and Pressure Limitations
- Brazed Plate Heat Exchangers (BPHE):
- Description and Common Applications
- Advantages: High Pressure/Temperature, Compact Size
- Disadvantages: Limited Material Options, Difficult to Clean
- Welded Plate Heat Exchangers (WPHE):
- Description and Common Applications
- Advantages: Extreme Temperature/Pressure, Corrosive Fluids
- Disadvantages: High Cost, Difficult Maintenance
- Semi-Welded Plate Heat Exchangers (SWPHE):
- Description and Common Applications
- Advantages: Combines Benefits of Gasketed and Welded
- Disadvantages: Higher Cost than Gasketed, Limited Applicability
- Wide-Gap Plate Heat Exchangers:
- Description and Common Applications (Fluids with particles)
- Advantages: Fouling Resistance
- Disadvantages: Lower Heat Transfer Efficiency than Standard Plates
- Gasketed Plate Heat Exchangers (GPHE):
Applications of Plate Heat Exchangers:
- HVAC (Heating, Ventilation, and Air Conditioning)
- District Heating and Cooling
- Refrigeration
- Food and Beverage Processing
- Chemical Processing
- Pharmaceuticals
- Power Generation
- Oil and Gas
- Marine
Factors to Consider When Choosing a Plate Heat Exchanger:
- Fluid Properties:
- Flow Rate
- Temperature (Inlet and Outlet)
- Pressure (Operating and Design)
- Viscosity
- Density
- Specific Heat Capacity
- Fouling Potential
- Corrosivity
- Performance Requirements:
- Heat Transfer Duty (BTU/hr or kW)
- Pressure Drop
- Temperature Approach
- Materials of Construction:
- Plates: Stainless Steel (304, 316), Titanium, Other Alloys
- Gaskets (if applicable): EPDM, NBR, Viton
- Frame: Carbon Steel, Stainless Steel
- Operating Conditions:
- Temperature Range
- Pressure Range
- Cleaning Requirements
- Space Constraints:
- Physical Dimensions
- Accessibility for Maintenance
- Fluid Properties:
Sizing and Selection Process:
- Gathering Data: Importance of accurate fluid properties and performance requirements.
- Consulting with Experts: Working with qualified heat exchanger engineers or suppliers.
- Using Sizing Software: Explanation of sizing software and its benefits.
- Considering Fouling Factors: Accounting for fouling to maintain performance over time.
- Optimizing for Pressure Drop: Balancing heat transfer and pressure drop.
Plate Heat Exchanger Materials:
- Plate Materials:
- Stainless Steel (304, 316, 316L): Common, cost-effective, good corrosion resistance.
- Titanium: Excellent corrosion resistance, especially in seawater.
- Other Alloys: Hastelloy, Inconel (for highly corrosive applications).
- Gasket Materials (for Gasketed PHEs):
- EPDM: Water, steam, dilute acids and alkalis.
- NBR: Oil, grease, aliphatic hydrocarbons.
- Viton: High temperatures, aggressive chemicals.
- Frame Materials:
- Carbon Steel: Standard material, cost-effective.
- Stainless Steel: Corrosive environments.
- Plate Materials:
Cost Considerations:
- Initial Purchase Cost: Comparing different types and brands.
- Installation Costs: Piping, connections, and labor.
- Operating Costs: Pumping power, energy consumption.
- Maintenance Costs: Cleaning, gasket replacement (if applicable).
- Life Cycle Cost Analysis: Evaluating the total cost over the lifetime of the exchanger.
Installation and Startup:
- Proper Piping: Ensuring correct flow direction and minimizing stress.
- Support and Alignment: Providing adequate support to prevent vibration and damage.
- Commissioning: Verifying performance and making necessary adjustments.
Maintenance and Cleaning:
- Regular Inspection: Checking for leaks, corrosion, and fouling.
- Cleaning Methods:
- Chemical Cleaning (CIP – Cleaning in Place)
- Mechanical Cleaning (Disassembly and Manual Cleaning)
- Gasket Replacement (for Gasketed PHEs): Recommended intervals and procedures.
- Record Keeping: Tracking maintenance activities and performance data.
Troubleshooting Common Problems:
- Reduced Heat Transfer Efficiency: Fouling, scaling, or improper flow rates.
- Excessive Pressure Drop: Fouling, blockages, or incorrect plate configuration.
- Leaks: Damaged gaskets, cracked plates, or loose connections.
- Vibration: Improper support or excessive flow velocity.
Key Plate Heat Exchanger Manufacturers and Suppliers:
- (List a few reputable manufacturers – Alfa Laval, APV/SPX Flow, Tranter, Sondex/Danfoss, GEA, etc. Disclaimer: This is not an exhaustive list and includes a note to do independent research.
Glossary of Terms:
- Plate Heat Exchanger (PHE)
- Heat Transfer Coefficient (U-value)
- Pressure Drop (ΔP)
- Fouling Factor
- LMTD (Log Mean Temperature Difference)
- NTU (Number of Transfer Units)
- CIP (Cleaning in Place)
Frequently Asked Questions (FAQ):
- How often should I clean my plate heat exchanger?
- What is the best material for my application?
- How do I size a plate heat exchanger?
- Can I use a plate heat exchanger for viscous fluids?
- How do I prevent fouling?
Conclusion:
- Summarize the key takeaways and emphasize the importance of careful selection, proper installation, and regular maintenance for optimal performance and longevity.
