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Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger

Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger

    • Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger
    • Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger
    • Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger
  • Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger

    Product Details:

    Place of Origin: China
    Brand Name: QIYAO
    Certification: ISO, ASME
    Model Number: QYT series

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 unit
    Price: Customized Product, Quoted Case By Case
    Packaging Details: Seaworthy wooden case
    Delivery Time: 30-45 days after T/T or L/C
    Payment Terms: T/T, L/C
    Supply Ability: 100 units per month
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    Detailed Product Description
    Material: Stainless Steel, SMO, Titanium, Etc. Core Structure Of Heat Transfer: Oval Twisted Tubes Arranged Properly
    High Design Pressure: Up To 20Mpa Wide Temperature Range: -20 C Up To 900 C
    Customised Design: Available After-sale Service: Available

    Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger

     

    Based on the traditional tube & shell heat exchanger, the Twisted Tube Heat Exchanger replaces the plain straight tubes with oval twisted tubes as the heat transfer components. The cross section along the length direction forms an oval spiral channel so that complicated flow featured by rotation of the fluid is caused to produce strong rotating turbulence. Tubes at shell side of the heat exchanger are supported by contacts at long axis of neighboring tubes (as fig.1-1), which eliminates the necessity of baffle plate and enables compact arrangement of tubes in the shell. In this way, it reduces the size and weight of heat exchanger and overcome the vibration of heat transfer tubes.

     

     

    Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger

    Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger

     

     

    Work Principle / flow

    The spiral channel causes longitudinal rotation and secondary swirl of fluid when the fluid flows through, and such swirl intensifies the turbulence, reduces the boundary layer of heat transfer and improves the mixing of fluid. Accordingly, the improved mixing maintains higher temperature gradient near the tube wall and results in higher Nu value and thus greatly increases coefficient of heat transfer.

     

    Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger

                                     Fig. 2-1 Flow mechanism in tube

     

    Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger

                                    Fig. 2-2 Flow mechanism at shell side

     

     

     

    Specification

    Equipment Twisted Tube Heat Exchanger
    •  
    QYT16, QYT20, QYT25, QYT32
    •  
    304, 316L, SMO, Ti
    Manufacture code / standard NB/T47007. GB150
    Design code / standard NB/T47007. GB150
    Design pressure F.V. – 20Mpa
    Design temperature -20 - 900℃
    Main test point Fluid inlet / outlet temperature & pressure
    Seal
    •  
    Service life of critical component 15 years
    Availability of spare parts Long term
    Warranty period 12 months
    Work / service scope Design, fabrication and installation supervision

     

     

     

    Advantages

    1. Low pressure drop.
    2. High heat transfer efficiency.
    3. Reduced fouling.
    4. No dead zone of flow, hard to block up.
    5. Capable of overcoming induced vibration, improved reliability.
    6. Advanced calculation software for reliable and reasonable design.
    7. Rich fabrication experience for safe and reliable product.
    8. Sufficient stock for quick delivery.
    9. Efficient management for lower cost.

     

    Workshop

    Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger

    Metal Shell And Tube Heat Exchanger Manufacturers , Spiral Tube Heat Exchanger

    Contact Details
    Shanghai Marine Diesel Engine Research Institute

    Contact Person: Mrs. Tan Ling

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