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High Heat Transfer Coefficient Welded Heat Exchanger Block - Type

Categories Welded Plate Heat Exchanger
Brand Name: QIYAO
Model Number: QYB series
Certification: ISO, ASME
Place of Origin: China
MOQ: 1 unit
Price: Customized Product, Quoted Case By Case
Payment Terms: L/C, T/T
Supply Ability: 100 units per month
Delivery Time: 30-45 days after T/T or L/C
Packaging Details: Seaworthy wooden case
Material: Stainless Steel, SMO, Titanium, etc.
Core structure of heat exchange: Corrugated metal sheets to be welded as a sheet bundle
Structure: Welded plate sheet bundle mounted into a block-type & bolt-connected and sealed metal frame
Design: Customised
Application: Oil & Gas, Refinery, Chemical industries, etc.
Packing: Seaworthy Packing
After-sale service: Available upon request
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    High Heat Transfer Coefficient Welded Heat Exchanger Block - Type

    Block-type & Fully-welded Plate Heat Exchanger is a new product in the compact heat exchanger family.

    The plate bundle fully welded with plate sheets is mounted into a frame of 4 bolted side panels with a top plate and a base plate sustaining pressure. The side panels are provided with nozzles with fluid inlet and outlet.

    Due to the bolt-connected structure, the plates can be easily demounted for easy cleaning and maintenance of the plate bundle.

    The plate sheets are welded to each other without any gasket used, so it can be applied for high temperature & pressure applications.

    The corrugated profile of plate sheet causes heavy turbulence of the fluid, so the heat transfer coefficient is 2-4 times of conventional tube & shell heat exchanger. Under the same working condition, the required area for heat transfer is only 25-30% of conventional tube & shell heat exchanger.


    Work Principle / Flow

    Thin metal sheets are pressed to produce corrugated plates and then a stack of such corrugated plates are welded one another and thus form the block type & fully welded plate heat exchanger. Neighboring sheets establish narrow and tortuous channels in between and allow the working fluid to flow through. The cold fluid and hot fluid flow through its own channels in order. The cold and hot channels are separated by the sheet naturally, where heat exchange takes place.

    Attributable to the structure & working principle, this type of PHE is featured by compact structure, small footprint, high heat transfer efficiency, flexible operation, wide application, low heat loss, easy installation & cleaning, etc.


    Specification

    ApplicationHeat exchange
    NameBlock-type & Fully-welded Plate Heat Exchanger
    ModelQYB30, QYB40, QYB50, QYB75
    Material316L, SMO, Ti, 2205
    Code & standardNB/T47007, GB150
    Design pressureF.V. – 4Mpa
    Design temperature-200 - 400℃
    Main measuring pointTemperature and pressure at fluid inlet / outlet
    SealFlange
    Service life for key equipment15 years
    Warranty12 months
    Scope of works/serviceDesign, manufacture, supply, installation supervision, etc.

    Advantage

    1. High heat transfer coefficient – Under the same condition of pressure drop limit, the heat transfer coefficient is 2-4 times of tube & shell heat exchanger;
    2. Compact structure – Small size & quick response to control;
    3. Light weight – Reduced precious metal cost;
    4. Laser welded plate sheet bundle – High pressure & heat resistance;
    5. Turbulence can be caused even in case of low velocity. Low fouling due to the big shearing force on the sheet wall surface.
    6. Multiple flow may flow in opposite directions – The heat exchange efficiency can be greatly increased and close approach temperature is achieved;
    7. Even distribution of fluid – The heat transfer efficiency is increased and the flow resistance is decreased;
    8. Demountable side panels & visible welding seams at the core – Easy cleaning & maintenance;
    9. Rich experience of manufacturing – Safe & reliable products;
    10. Plenty of stocks on components – Reduced lead time;
    11. High management efficiency – Low cost on products.

    Reference

    No.UserProjectEquipmentSpecificationQty.
    1Kingboard Chemical Holdings Ltd.100,000t/y catalytic crackerHeavy oil fractionating tower overhead cooler

    QYB75

    Design pressure: 0.7MPa

    Design temp.: 200℃

    Plate material: 316L

    1
    Heavy oil fractionating tower overhead oil gas – hot water heat exchanger

    QYB75

    Design pressure: 0.7MPa

    Design temp.: 200℃

    Plate material: 316L

    1
    Light oil fractionating tower overhead oil gas – hot water heat exchanger

    QYB75

    Design pressure: 0.7MPa

    Design temp.: 200℃

    Plate material: 316L

    1
    Light oil fractionating tower overhead cooler

    QYB75

    Design pressure: 0.7MPa

    Design temp.: 200℃

    Plate material: 316L

    1
    2Nanjing Fubangte Oriental Chemicals Co. Ltd.Plate heat exchanger upgrading projectPredistillation heat exchanger

    QYB50

    Design pressure: 0.9MPa

    Design temp.: 220℃

    Plate material: 316L

    1
    3Xinao Energy Holdings Ltd.Nanjing supercritical hazardous waste treatment projectCondenser

    QYB50-H-250

    Design pressure: 0.4MPa

    Design temp.: 160℃

    Plate material: Ti

    1
    Preheater

    QYB30-V-60

    Design pressure: 0.5MPa

    Design temp.: 160℃

    Plate material: Ti

    1
    4Shandong Yuhuang (Group) Chemical Co. Ltd.50,000t/y MMA projectT240 feed preheater

    QYB75-V-400

    Design pressure: 1.0MPa

    Design temp.: 110℃

    Plate material: 316L

    2
    5Wanhua Chemical Co. Ltd.Polycarbonate projectPrimary/ secondary water cooler

    QYB30-V-100

    Design pressure: 0.8MPa

    Design temp.: 125℃

    Plate material: 316L

    5
    Primary MC wastewater heat exchanger

    QYB50-V-200

    Design pressure: 0.8MPa

    Design temp.: 90℃

    Plate material: Ti

    2
    Secondary MC wastewater heat exchanger

    QYB50-V-200

    Design pressure: 0.8MPa

    Design temp.: 120℃

    Plate material: Ti

    2
    6SinoPec Luoyang Company15GX69 revamp projectNaphtha – crude oil heat exchanger

    QYB75-V-300

    Design pressure:2.35MPa

    Design temp.: 150℃

    Plate material: Ti

    1
    SinoPec Zhenghai Refining & Chemicals Co. Ltd.CDU heat exchanger replacementNaphtha – crude oil heat exchanger

    QYB75-V-350

    Design pressure:2.5MPa

    Design temp.: 250℃

    Plate material: Ti

    2
    SinoPec Jiujiang CompanyOil quality upgrading revamp projectCrude oil – topping gas heat exchanger

    QYB75-V-352

    Design pressure: 1.5/3.3MPa

    Design temp.: 200℃

    Plate material: Ti

    2
    Crude oil – naphtha heat exchanger

    QYB75-V-252

    Design pressure:1.5/3.3MPa

    Design temp.: 200

    Plate material: Ti

    2
    Crude- 3rd side of vacuum heat exchanger

    QYB75-V-352

    Design pressure: 3.0/3.5MPa

    Design temp.: 300℃

    Plate material: 316L

    2
    Crude- 3rd side of vacuum heat exchanger

    QYB75-V-502

    Design pressure: 3.0/3.5MPa

    Design temp.: 350℃

    Plate material: 254SMO

    2
    Naphtha – hot water heat exchanger

    QYB75-V-152

    Design pressure: 1.5/1.5MPa

    Design temp.: 200℃

    Plate material: Ti

    2
    7National Iranian Oil CompanyCrude Oil UnitStabilized oil/crude oil

    QYB75-V-500

    Design pressure: 2.1MPa

    Design temp.: 150℃

    Plate material: Ti

    1
    8CNPC Sichuang companyCDU fully-welded heat exchanger revamp projectCrude oil – naphtha heat exchanger

    QYB75-H-250

    Design pressure: 1.6MPa

    Design temp.: 200℃

    Plate material: Ti

    5
    CNPC Huhehot CompanyCDU heat exchanger upgrading projectNaphtha – crude oil heat exchanger

    QYB75-V-500

    Design pressure: 2.5MPa

    Design temp.: 200℃

    Plate material: Ti

    1
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