BS EN ISO 15547-2 pdf download

BS EN ISO 15547-2 pdf download Petroleum, petrochemical and natural gas industries — Plate-type heat exchangers — Part 2: Brazed aluminium plate-fin heat exchangers
5.1Drawings
5.1.1 The vendor shall furnish general arrangement drawings for each plate-fin heat exchanger for review.The drawings shall include the following information:
a) service, item number，project name and location, vendors shop order number and purchaser’s order
number;
b) maximum allowable working pressure, design pressure including vacuum if applicable，test pressure,
maximum design temperature， minimum design metal temperature and any restrictions regarding testingor operation of the plate-fin heat exchanger;
c)dimensions and location of supports;
d)overall plate-fin heat exchanger dimensions;e) type and details of fins used;
f)presence and location of any inactive areas;
g)mass of the plate-fin heat exchanger, both empty and full of liquid with a specific gravity of 1,0;h) centre of gravity of the plate-fin heat exchanger for empty and operating conditions;
i)material specifications for all components;
j)allowable forces and moments on connections;
k) size, flange rating and facing, location, orientation, and flow identification of all connections;l)applicable design codes.
5.1.2 lf controlled torquing of flange bolting is required the vendor shall furnish torquing requirements.5.1.3 The vendor shall furnish detailed instructions on lifting and handling of the plate-fin exchanger.
5.1.4 The review of general arrangement drawings by the purchaser shall not relieve the vendor of theresponsibility of meeting the requirements of the purchase order.
5.1.5 After receipt of the purchaser’s general arrangement drawing review comments, the vendor shallfurnish the certified general arrangement drawings and the detail drawings.
5.1.6lf specified by the purchaser，the vendor shall furnish copies of applicable welding procedurespecifications and weld maps for review or record.
5.1.7lf specified by the purchaser, brazing procedures shall be made available for purchaser’s review.5.1.8lf specified by the purchaser, the vendor shall furnish copies of applicable calculations for review orrecord.
5.1.9lf specified by the purchaser, the vendor shall furnish stress analysis calculations in accordance withthe methods prescribed by the applicable pressure design code for review or record.
5.1.10 The vendor shall furnish procedures for pressure and leak testing, and drying for review.
5.2Final records
5.2.1 The vendor shall furnish the purchaser with a users manual which shall contain the following:a)technical description;
b)operating instructions (including any start-up or shut-down constraints);c)installation and maintenance instructions (including lifting and handling);d)data sheets and drawings (as-built).
5.2.2 The vendor shall retain, for at least five years, records which confirm compliance of the material andfabrication with the requirements of this part of ISo 15547.
6 Design
6.1General
lf the design method is based on proof testing, the vendor shall provide the necessary details to the purchaserfor verification of compliance with the pressure design code.
6.2Design temperature
The purchaser shall specify a maximum design temperature and a minimum design metal temperature.
6.3Design pressure
The plate-fin heat exchanger design shall not be based on differential pressure.
6.4Thermal stress
6.4.1 In addition to the design operating condition(s), the purchaser shall specity all operating conditionswhich could impose significant thermal stresses on the plate-fin heat exchanger. This shall consider anyalternative operating cases,turn-down operation, upset-operation cases (with particular attention to caseswhere a stream’s flowing condition might change or cease abruptly), and the process control philosophy beingapplied to the plate-fin heat exchanger. The purchaser shall specify which streams are subject to cyclic orfrequently-repeated temperature fluctuations.
6.4.2 The vendor’s design shall allow for thermally induced stresses, with the following assumptions:a)a local temperature difference of 50 K(90 °F) between any two adjacent streams;
b) a local temperature difference of 30 K (54 °F) between any two adjacent streams in two-phase flow, or in
transient or cyclic conditions.
6.5Fouling resistance
A fouling resistance of zero shall be assumed unless otherwise specified by the purchaser.