BS EN ISO 15547-2:2005 – Petroleum, petrochemical and natural gas industries — Plate-type heat exchangers — Part 2: Brazed aluminium plate-fin heat exchangers
1 Scope
This part of ISO 1 5547 gives requirements and recommendations for the mechanical design, materials selection, fabrication, inspection, testing, and preparation for shipment of brazed aluminium plate-fin heat exchangers for use in petroleum, petrochemical and natural gas industries.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
heat transfer area
sum of the primary and secondary heat transfer surface areas of all heat-transfer passages in contact with a stream
See Figure 1 .
2.2
item number
purchaser’s identification number for a plate-fin heat exchanger
2.3
minimum design metal temperature
lowest metal temperature at which pressure-containing elements can be subjected to design pressure EXAMPLE Ambient temperature, process fluid temperature.
2.4
plate-fin heat exchanger
heat exchanger consisting of a block (core) of alternating layers (passages) of corrugated fins See Figure 2.
NOTE 1 The layers are separated from each other by parting sheets and sealed along the edges by means of side bars, and are provided with inlet and outlet ports for the streams. The block is bounded by cap sheets at the top and bottom.
NOTE 2 All the layers carrying the same stream are connected together by headers (inlet, outlet, intermediate) directly attached by welding onto the brazed core.
2.5
pressure design code
recognized pressure vessel standard specified or agreed by the purchaser
EXAMPLE ASME Section VIII, EN 1 3445.
2.6
structural welding code
recognized structural welding code specified or agreed by the purchaser
3 General
z 3.1 The pressure design code shall be specified or agreed by the purchaser. Pressure components shall comply with the pressure design code and the supplemental requirements in this part of ISO 1 5547.
The structural welding code shall be specified or agreed by the purchaser.
3.2 Annex A provides some recommended practices for information.
z 3.3 The vendor shall comply with the applicable local regulations specified by the purchaser.
z 3.4 If specified by the purchaser, or if required by regulations, the vendor shall register each plate-fin heat exchanger.
3.5 Further information on brazed aluminium plate-fin heat exchangers can be found in the ALPEMA standards 1 ) .
4 Proposal information required
4.1 The vendor shall provide a completed data sheet, including materials of construction. An example of a suitable format is given in Annex C.
4.2 The vendor shall specify operating limitations, e.g. temperature limits.
4.3 The vendor shall include a detailed description of any exception to the specified requirements.
4.4 The first-time use of a plate-fin heat exchanger design, component or material by the vendor for the purchaser’s intended service shall be clearly indicated by the vendor.
4.5 The vendor shall provide recommended strainer requirements for each stream.
z 4.6 If a mercury-tolerant design is specified by the purchaser, the vendor shall provide details of special design, manufacturing techniques and operating procedures.
BS EN ISO 15547-2:2005 – Petroleum, petrochemical and natural gas industries — Plate-type heat exchangers — Part 2: Brazed aluminium plate-fin heat exchangers