The characteristics of spiral plate heat exchangers are:
1. Good heat transfer efficiency. Curved spiral channels and fixed distance columns are conducive to enhancing the turbulent state of the fluid. The fluid resistance in the channel is small, which can increase the design flow rate and help improve the heat transfer coefficient. For water water heat exchange, the heat transfer coefficient can reach 1.8-3.5 kilowatts per square meter per degree Celsius [kW/(m (· ºC)].
2. It has a self-cleaning effect. When the fluid in a single channel passes through the impurity deposition area inside the channel, the flow rate will relatively increase, making it easy to wash away the impurities.
3. The non removable structure has good sealing performance and is suitable for heat exchange of highly toxic, flammable, explosive or valuable fluids.
4. The fluid in adjacent channels flows in a pure countercurrent manner, which can obtain the maximum logarithmic mean temperature difference, which is conducive to small temperature difference heat transfer and suitable for recovering low-temperature potential heat energy.
5. The compact structure allows for a heat transfer area of up to 150m per unit volume of equipment.
6. Due to the elastic free expansion of the spiral channel itself, the temperature difference stress is small.
SCOPE OF WORK
Mechanical and Fabrication guarantee
Design including strength calculation (including erection condition) stress analysis and detail design based on applicable Codes, Local Regulation, Project Specifications and Standards
Thermal Design (Thermal Rating)
All technical certifications required for design work as per local regulations
Stability check (during transport, lifting and hydrostatic test) and loading data for base design
Structural analysis for main body and its support for operation load
Material procurement
Material Test and Certificates as per applicable Code and Specifications
Manufacturing
Post weld heat treatment as per code and specification
PMI (Positive Material Identification)
All NDEs as per Project Specification
Welding procedure qualification test
WPS & PQR
Welder performance test
Hydrostatic test at BlDDER shop as per Code & Local Regulations, Specifications.
Installation work for vessel internals supplied by Bidder
External surface preparation and painting as per Specification
Packing and marking as per project specifications
Preservation during transportation and storage (Including Seaworthy packing for oversea manufacturer)
Internal protection from moisture: N2 Charge
All activities to meet requirements of Data Sheets, Specifications, Codes and Standards, Local Regulations
1. Q:Are you a manufacturer or trading company?
A:We are a manufacturer with over thirty years of experience in China.
2.Q:Can we visit your factory before placing orders?
A: Sure, warmly welcome to our factory!
3.Q:What's the information needed if I send one inquiry ?
A : Please tell us the working conditions, mediums,temperature ,pressure, equipment ' s material,size,quantity, and other special requests.
4.Q:How does your factory do quality control?
A: Quality is priority ,we make relevant strict testing before delivery.
Our factory has already obtained ASME, GOST, ISO9001 quality and ISO 14001 Environmental management system certificate.
Audited Supplier 
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