1、 _ 6$(7HFKQLFDO6WDQGDUGV%RDUG5XOHVSURYLGHWKDW7KLVUHSRUWLVSX EOLVKHGE SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the
2、 sole responsibility of tKHXVHU SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2016 SAE International All rights reserved. No part of this publication may
3、be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA)
4、 Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J1597_201603 SURFACE VEHICLE RECOMMEDNED PRACTICE J1597 MAR2016 Issued 1988-07 Revised 2016-03 S
5、uperseding J1597 FEB1999 Laboratory Testing of Vehicle and Industrial Heat Exchangers for Pressure-Cycle Durability RATIONALE This document has undergone a 5-year review, new sections and examples have been added to clarify the requirements of pressure pulse testing for the automotive industry and f
6、or industrial heat exchangers. 1. SCOPE This SAE Recommended Practice is applicable to all liquid-to-gas, liquid-to-liquid, gas-to-gas, and gas-to-liquid heat exchangers used in vehicle and industrial cooling systems. This document outlines the tests to determine durability characteristics of the he
7、at exchanger under pressure cycling. 1.1 Purpose This document provides a test guideline for determining the durability of a heat exchanger under specified pressure-cycle conditions. 2. REFERENCES The following publications form a part of this specification to the extent specified herein. Unless oth
8、erwise indicated, the latest issue of SAE publications shall apply. 2.1 Applicable Documents 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. SAE J1542
9、Laboratory Testing of Vehicle and Industrial Heat Exchangers for Thermal Cycle Durability SAE J1598 Laboratory Testing of Vehicle and Industrial Heat Exchangers for Durability Under Vibration-Induced Loading SAE INTERNATIONAL J1597 MAR2016 Page 2 of 5 3. OBJECTIVE To verify compliance with establish
10、ed criteria that ensures durability in a specific application. This document describes a system to induce stresses in a heat exchanger resulting from specified pressure variations. The process is accomplished by varying the pressure in the unit at a specified frequency and temperature. 4. FACILITY R
11、EQUIREMENT The facility should provide the following as required: 4.1 Source of pressurized fluid(s) at specified temperature and pressure range. 4.2 Means of moving these fluids to and from the test unit in a specified manner. 4.3 Means of checking heat exchanger integrity. 4.4 A system adequate to
12、 control the pressure cycle as specified. It may include but not be limited to the following: a. Automatic data logging equipment b. Automatic emergency shutdowns c. Electrical relays, timers, switches, indicator lights, and related items as required d. Flow measuring devices e. Fluid filters f. Hea
13、ters and controls g. Leak detector h. Pressure cycle counters i. Pressure gauges j. Pressure regulators for each fluid k. Pressure switches l. Pumps m. Relief and back pressure regulators n. Safety features as specified by regulatory codes and common practices o. Tanks p. Temperature indicators See
14、Figure 1 for typical control system as reference. SAE INTERNATIONAL J1597 MAR2016 Page 3 of 5 5. TESTING 5.1 Inspect heat exchanger for integrity of assembly and any visible structural damage. 5.2 Install test unit as specified (orientation as in service) in a safe manner. 5.3 Set up control system
15、to obtain the specified pressure cycle (gage or absolute, see Figure 2 for typical pressure cycle). 5.3.1 High pressure and pressure range to be specified based on specific application. High pressure and pressure range to be at least equal to or greater than normal operating conditions. CAUTION: Pre
16、ssures exceeding specified value can cause significant structural damage which will invalidate the test results. The system shall be capable of maintaining this pressure within 15kPa (2.2 PSI) absolute pressure unless otherwise specified and should be measured within or as near the test unit as poss
17、ible. 5.3.2 High- and low-pressure dwell, and rate of pressure change, are to be as specified. 5.3.3 Fluid temperature to be as specified and controlled within 3 C (5.4 F) temperature unless otherwise specified. The specified temperature should be near the maximum value expected in service. 5.4 Run
18、test to specified cycle duration or heat exchanger failure. 5.4.1 Set up method to determine heat exchanger failure/leak (regular inspection/pressure switch/fluid leakage switch). 5.5 After test completion, remove and test heat exchanger for leaks and structural damage. Figure 1 - Typical control sy
19、stem SAE INTERNATIONAL J1597 MAR2016 Page 4 of 5 Figure 2 - Typical pressure cycle 6. TEST DOCUMENTATION 6.1 During and after the test, document leakage rate and location(s) at specified pressure (gage or absolute) and compare to acceptance criteria. 6.2 Document the following: a. Condition of unit
20、prior to test (new or previous history) b. Unit Orientation (Reference to 5.2) c. Test Equipment Calibration and Tracking information d. Pressure Range (Reference to 5.3.1) e. High Pressure (Reference to 5.3.1) f. Frequency, Pressure Dwell, High and Low, Rate of Pressure Change (Reference to 5.3.2)
21、g. Fluid Temp Cycles to Completion (Reference to 5.4) h. Number of Cycles to Completion (Reference to 5.4) i. Location of Leaks and Structural Damage (Reference to 5.5) j. If testing is continuous or in block units SAE INTERNATIONAL J1597 MAR2016 Page 5 of 5 7. This document is valid for durability
22、comparison of pressure-cycle conditions only. Correlation to field results must be developed on an individual basis. Other tests affecting heat exchanger durability are SAE J1542 (Thermal Cycle) and SAE J1598 (Vibration). These tests can be run in combination as well as independently. NOTE: Combinat
23、ion testing may make it difficult to determine cause of failure. 8. NOTES 8.1 Revision Indicator A change bar (I) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE COOLING SYSTEMS STANDARDS COMMITTEE
