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Summary of Contents for Alfa Laval AC Series
- Page 1 Instruction Manual - Brazed plate heat exchangers AC, AXP, CB, CD, DOC 3450021401-EN 2017-06 Original manual...
- Page 2 www.alfalaval.com/bhe-manuals...
- Page 3 English Download local language versions of this instruction manual from www.alfalaval.com/bhe-manuals or use the QR code български Изтеглете версиите на това ръководство за употреба на местния език от www.alfalaval.com/bhe-manuals или използвайте QR кода. Český Stáhněte si místní jazykovou verzi tohoto návodu k obsluze z www.alfalaval.com/bhe-manuals nebo použijte QR kód.
- Page 4 Magyar Az Ön nyelvére lefordított használati útmutatót letöltheti a www.alfalaval.com/bhe-manuals weboldalról, vagy használja a QR-kódot. Italiano Scarica la versione in lingua locale del manuale di istruzioni da www.alfalaval.com/bhe-manuals oppure utilizza il codice QR. 日本の www.alfalaval.com/bhe-manuals からご自分の言語の取扱説 明書をダウンロードするか、QRコードをお使いください。 한국의 www.alfalaval.com/bhe-manuals 에서 이 사용 설명서의 해당 언어...
- Page 5 Românesc Versiunile în limba locală ale acestui manual de instrucţiuni pot fi descărcate de pe www.alfalaval.com/bhe-manuals sau puteţi utiliza codul QR. Pусский Руководство пользователя на другом языке вы можете загрузить по ссылке www.alfalaval.com/bhe-manuals или отсканировав QR-код. Slovenský Miestne jazykové verzie tohto návodu na používanie si stiahnite z www.alfalaval.com/bhe-manuals alebo použite QR kód.
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Page 7: Table Of Contents
Please visit www.alfalaval.com to access the information directly. © Alfa Laval Corporate AB This document and its contents is owned by Alfa Laval Corporate AB and protected by laws governing intellectual property and thereto related rights. It is the responsibility of the user of this document to comply with all applicable intellectual property laws. - Page 8 Faulty handling of the plate heat exchanger may result in serious with injuries and/or property damage. Alfa Laval will not accept responsibility for any damage or injury caused as a result of not following the instructions in this manual.
- Page 9 Unless altered by written agreement, Alfa Laval standard warranty applies. Storage of the plate heat exchangers Alfa Laval delivers the plate heat exchanger ready for operation, unless agreed otherwise. Keep the plate heat exchanger in the packing box until it is ready to be installed.
- Page 10 Preface Environmental compliance Alfa Laval endeavours to perform its own operations as cleanly and efficiently as possible. Environmental aspects are taken into consideration when developing, designing, manufacturing, servicing and marketing the company’s products. Brazed Plate Heat Exchangers (BHE) consist of stainless steel channel plates and frame elements and bonded stainless steel or carbon steel connections.
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Page 11: Description
Description Description Function Plate heat exchangers consist of a pack of corrugated metal plates with ports for the passage of the two fluids between which the heat transfer will take place. The media in the heat transfer are led into the plate pack through portholes at the corners and are distributed into the passages between the corrugated plates. -
Page 12: Installation
Installation Installation Unpacking Carefully open the package containing the plate heat exchanger. Check that all items are included according to the specifications and that all parts are undamaged. Before installing the plate heat exchanger, remove the plastic plugs or caps in the connections. Lifting Warning! Never lift only by the connections or anyb of the studs. -
Page 13: Requirements
Installation Warning! Plate heat exchangers with large plate packs may be difficult to lift without lifting lugs because the center of gravity may cause the plate heat exchanger lean too much. If in doubt, use lifting lugs. Requirements Warning! The plate heat exchanger must be installed and operated so that no risk of injury to personnel or damage to property. - Page 14 Installation Connection loads at installation Figure 3. Connection loads. With reference to definitions in figure, the loads during installation should not exceed the limits specified in table below. Maximum recommended connection loads during installation Figure 4. Outer diameter of the connection (D). Tension Bending Torque...
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Page 15: Mounting
Installation Mounting It is recommended to mount the plate heat exchanger on the floor, on feet or on the wall. Larger heat exchangers should be secured with support mountings (ordered as accessory) intended for a specific heat exchanger, or be secured with straps or by means of mounting bolts. -
Page 16: Installation In General
Installation Installation in general Warning! Safety valves must be installed according to pressure vessel regulations. Note! Before connecting any piping, make sure all foreign objects have been flushed out of the system. The installation must be installed with equipment that protects it against pressures and temperatures outside the approved minimum and maximum values shown on the name plate. -
Page 17: Installation As Evaporator Or Condenser
Installation Welded connections – To minimize the heat impact of the heat exchanger it is recommended to use TIG or MIG welding methods. Preparation for welding: Grind inside and outside of the pipe and, if bevelled, also the bevelled edge at least 25 mm from the pipe edge and inward. -
Page 18: Leak Test
Installation Heat exchanger with a refrigerant distribution system should be mounted with the distributor at the bottom. Typical installation of single circuit: S4 S1 S4 S1 S3 S2 S3 S2 Figure 5. Single circuit: A evaporator; B condensor. 1.Refrigerant inlet 2.Refrigerant outlet 3.Water/Brine inlet 4.Water/Brine outlet For an evaporator, the pipe should be straight (at least 150 mm / 5.9 inch length) between the expansion valve and refrigerant... -
Page 19: Operation
Operation Operation Start-up Note! If several pumps are included in the system, make sure you know which one should be activated first. Note! Adjustments of flow rates should be made slowly in order to avoid the risk of water hammer. Water hammer is a short-lasting pressure peak that can appear during start-up or shut-down of a system, which causing liquids to travel along a pipe as a wave... -
Page 20: Unit In Operation
1 °C (34 °F). Protection against clogging Use a filter as protection against the possible occurrence of foreign particles. If you have any doubt concerning the maximum particle size, please consult your Alfa Laval Representative. Instruction Manual - Document ID... - Page 21 fluctuating pressures/temperatures. Warning! The plate heat exchanger is not intended for cyclic processes, please contact an Alfa Laval Representative for advice. • Locate the temperature sensor as close as possible to the outlet from the heat exchanger.
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Page 22: Shut-Down
Operation Recommended limits for Chloride ions, Cl at pH 7.5 Alloy 304 Alloy 316 100 ppm 1000 ppm at 25 °C / 77 °F 50 ppm 200 ppm at 65 °C / 149 °F 20 ppm 100 ppm at 80 °C / 176 °F Lower levels of chloride ions may cause corrosion due to other factors. -
Page 23: Maintenance
This is dependent on exposure time and concentration of chlorine. In every case where the chlorination of the plate heat exchanger cannot be avoided, consult an Alfa Laval Representative for advice. Cleaning-In-Place Cleaning-In-Place (CIP) equipment permits cleaning of the plate heat exchanger. - Page 24 Neutralization of cleaning liquids before draining and flushing the unit with potable water. Follow the instructions of the CIP equipment. Consult an Alfa Laval Representative for approriate advice on selecting CIP equipment. Warning! Use proper protective equipment, such as safety boots, safety gloves and eye protection, when using cleaning agents.
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Page 25: Fault Tracing
Fault tracing Fault tracing Pressure drop problems If the pressure drop has increased. Action 1.Check that all valves are open including non-return valves. - Measure the pressure and the flow rate directly in front of the inlet and after the outlet of the heat exchanger.For viscous media use a membrane manometer with a diameter of at least 30 mm. -
Page 26: Heat Transfer Problems
Fault tracing Heat transfer problems The heat transfer capacity is dropping. Action 1.Measure temperatures at inlets and outlets. Also measure flow rates on both media, if possible. On at least one of the media, both temperatures and the flow rate must be measured.
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