SPX APV ParaFlow Instruction Manual
  1. Manuals
  2. Brands
  3. SPX Manuals
  4. Industrial Equipment
  5. APV ParaFlow
  6. Instruction manual
SPX APV ParaFlow Instruction Manual

SPX APV ParaFlow Instruction Manual

Gasketed plate heat exchangers
Hide thumbs
Table of Contents

Advertisement

Quick Links

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the APV ParaFlow and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for SPX APV ParaFlow

Summary of Contents for SPX APV ParaFlow

  • Page 2 ParaFlow Instruction Manual Gasketed Plate Heat Exchangers Read and understand this manual prior to operating or servicing this product.

  • Page 3: Index

    ! Never over tighten without written consent ! Never open the APV plate heat exchanger from APV as this can damage the flow plates. until the unit has cooled below 40°C (105°F). (See page 32) (See page 23) Issued: 1000E-GB Copyright © 2009 SPX Corporation...

  • Page 4: Table Of Contents

    Index Index............................. 2 Index............................. 3 1. Main components........................6 2. Operating Principle........................9 2.1 Standard design ........................9 2.2 Frame ..........................9 2.3 Sanitary plate heat exchangers ..................10 2.3.1 Grids and bosses ......................10 2.3.2 Spray screen ....................... 11 2.3.3 Divider plates ......................
  • Page 5 9.5 Re-assembly ........................29 9.6 Maintenance of in-line filter ....................33 10. Spare Parts – Identification and Ordering................34 10.1 Identification of spare parts..................... 34 11. Troubleshooting ........................35...
  • Page 6 Note: Illustrations of ParaFlow heat exchangers and equipment presented in this manual serve as example illustrations only in support of the instructions. Your actual equipment may look different. Important! In addition to this instruction manual, the following key documents are included with your APV ParaFlow plate heat exchanger.

  • Page 7: Main Components

    The purpose of this manual is to provide you with important information on operating your APV Plate Heat Exchanger. This manual covers the APV ParaFlow gasketed plate heat exchangers. Separate publications describe other APV equipment. Read this manual carefully before unpacking the equipment.
  • Page 8 A typical large APV ParaFlow PHE Figure 1: Main components of APV gasketed plate heat exchanger, industrial design Head for connections and clamping the plate pack Follower for clamping the plate pack and any additional connections End support for supporting the top and bottom bars...
  • Page 9 Figure 2: Main components of typical APV sanitary / hygienic plate heat exchanger. Head for connections and clamping the plate pack Follower for clamping the plate pack End support for supporting the top and bottom bars Top bar for carrying and guiding the follower and plate pack Bottom bar for guiding the follower and plate pack Tie bars for clamping the plate pack between head and follower Flow plate (Figure 1)

  • Page 10: Operating Principle

    2. Operating Principle 2.1 Standard design The plate heat exchanger consists of a number of thin corrugated metal plates. The plate corrugations form flow channels for the heat exchanging fluids and provide strength to the compressed plate pack. The plates contain ports for fluid inlets, outlets and interconnect passages as required.

  • Page 11: Sanitary Plate Heat Exchangers

    2.3 Sanitary plate heat exchangers Frames used for sanitary or hygienic duties are fabricated in solid stainless steel or carbon steel with stainless steel covering. Standard connections are usually sanitary tube fittings. Industrial fittings may be supplied when required. Plates may be either parallel flow or diagonal flow.

  • Page 12: Spray Screen

    The connector bosses can also form the connections between sections of the plate heat exchanger and provide external connections to and from these sections. 2.3.2 Spray screen A spray screen can be mounted on the plate pack for protection. The spray screen is made from folded stainless steel and it is hung on the top bar or tie bars of the plate heat exchanger for easy installation and...

  • Page 13: Apv Duosafety - Double Wall Plates

    2.4 APV DuoSafety – double wall plates The APV DuoSafety heat exchanger plate is a double wall plate manufactured from two loose plates pressed together to form a DuoSafety plate. Each APV DuoSafety plate pair is equipped with a non-glue gasket, which seals and holds the plates together.

  • Page 14: Apv Paraweld - Welded Plate Pairs

    2.5 APV ParaWeld – welded plate pairs APV ParaWeld plate pair is a right- and left- hand plate laser welded together to form a pair. This welded plate pair system is particularly suitable for use with refrigerants such as ammonia and Freon or with other aggressive liquids that could otherwise attack the gaskets in a conventional heat exchanger plate.

  • Page 15: General Safety Precautions

    The APV in-line filter is inserted in the fluid inlet port of the heat exchanger through an opening in the follower and closed with a full-faced gasket blind cover. The in-line filter mesh size is 2.5 mm (0.1 inch). Where an in-line filter is purchased for an existing APV PHE, please check whether the follower is prepared for the installation of an in-line filter.

  • Page 16: Receiving Of Equipment

    4. Receiving of equipment 4.1 Receiving check APV Plate Heat Exchangers may be shipped fully assembled and skid mounted. The PHE is normally mounted on pallets and wrapped in protective plastic. Other wrappings could be in open box or seaworthy packaging. Prior to unpacking, check the packing for any defects and the equipment for possible damage that might have occurred during...

  • Page 17: General Arrangement Drawing

    4.2.2 General arrangement drawing This general arrangement drawing provides the same detailed information, as the assembly drawing plus other customer specified details. 4.2.3 PHE Plate Arrangement drawing The plate heat exchanger is designed to perform a duty (or duties) by arranging the number and type of plates required in a specific sequence.

  • Page 18: Handling

    See warning 5. Handling concerning lifting from follower 5.1 Lifting If the plate heat exchanger is packed and transported lying flat on the head, great care must be taken during raising it, to avoid sliding and impact of bending forces to the equipment base or feet.

  • Page 19: Installation

    6. Installation 6.1 Foundation The APV Plate Heat Exchanger should be placed on a solid foundation floor. If the unit is provided with feet, the dimensions and placement of these are stated on the assembly drawing. 6.2 Space requirements Ensure that there is sufficient space around the plate heat exchanger to separate the plate pack and to remove or insert plates.

  • Page 20: Storage

    7. Storage 7.1 Short Term Storage (less than 6 months) The plate heat exchanger must be stored in a cool and dry environment away from sunlight. It must be protected from water and debris with a waterproof cover, while also allowing for air circulation.

  • Page 21: Start-Up And Operation

    8. Start-up and operation 8.1 Start up ! Start-up of the plate heat exchanger must be undertaken slowly and smoothly to avoid any pressure shocks/water hammering which might damage the equipment or cause leakage. Do not allow pressure changes of more than 10 bar (150 psi) per minute.

  • Page 22: Corrosion Resistance

    8.2.1 Corrosion resistance Before entering into operation you should assure that the media do not exceed the corrosion resistance level of the materials chosen for your Plate Heat Exchanger. Even unprocessed water may contain such high level of corrosive content (e.g.
  • Page 23 liquid must be shut down first to avoid freezing of the product. ! Sudden changes in the operating pressures and temperatures should be avoided. Shock cooling of the heat exchanger may cause leakages, due to sudden contraction of the sealing gaskets. All liquids should be drained from the heat exchanger after shut down to prevent precipitation of products or scale build-up.

  • Page 24: Maintenance

    9. Maintenance ! Never open the APV plate heat exchanger until the unit has cooled below 40°C (105°F). ! Never open an APV heat exchanger, which is under pressure from any source. ! Never open an APV plate heat exchanger with piping connected to the follower or connector grids.
  • Page 25 Loosen all tie bars in 3 mm increments to “X + 5%”, and then remove only the 2 top and the 2 bottom tie bars in the positions shown in the picture. Loosen rest off the tie bars in increments of up to 6 mm to “X + 10%”.

  • Page 26: Cleaning

    ! Always wear protective gloves when handling plates. Remove the plates by lifting them backwards and then sideways off the top bar and then sliding out of the frame. 9.2 Cleaning The plate heat exchanger can be cleaned without opening (i.e. cleaning-in-place) and manual cleaning.

  • Page 27: Cleaning-In-Place

    forget that for glue free gaskets, gasket sealing surfaces to be checked are at the top as well as bottom surface of the gasket. In many cases, fouling may be far too tenacious. APV service centres around the world may be approached for thorough cleaning and inspection of the plate pack and regasketing.
  • Page 28 In simple cases cleaning can also be effected without circulation but by pouring a cleaning fluid solution into the system. After some time of standing, flush the solution with clean water. If the heat exchanger is to be out of service for a long time, it is advisable to empty it, separate the plates, and clean the unit.

  • Page 29: Regular Duosafety Internal Inspection

    Example of an acceptable solution for dairy applications and AISI 316 plates and NBR gaskets: • Oils and fats are removed with a water- emulsifying oil solvent, e.g. BP-System Cleaner. • Organics and greasy coatings are removed with Sodium hydroxide (NaOH) -max. concentration 2.0% - max.

  • Page 30: Gasket Replacement

    Fouling between the DuoSafety plate pair indicates that at least one of the DuoSafety plates has a defect. In this case, both plates in the DuoSafety plate pair must be removed from the plate heat exchanger. 9.4 Gasket replacement For ordering of spare parts and for re- gasketing, refer to section 10: “Spare Parts”.
  • Page 31 When the plate pack has been correctly assembled, in most models, plate edges will create a honeycomb. So, check the edge of the plate pack for unusual patterns before tightening the PHE. Check the tie bars. Brush clean and grease over the working lengths.
  • Page 32 For large units (Distance between bars 1 and 3 >1200 mm) Compress plate pack in small increments, always moving diagonally from one tie bar to the next. Reach final dimension X + 10% by tightening bars 1 to 6 in the order given, in increments of 25 mm or less.
  • Page 33 linked with the percentage division of plate counts in various sections. ! To ensure leak free operation in such applications, it is even more important that the plates contact well with each other. Well contacting plates are far more resistant to the concertina effect.

  • Page 34: Maintenance Of In-Line Filter

    9.6 Maintenance of in-line filter The in-line filter where supplied needs to be cleaned at regular intervals. The frequency depends on the content and size of debris in the fluid being filtered. An increase in the pressure drop over the heat exchanger indicates the need for cleaning.

  • Page 35: Spare Parts - Identification And Ordering

    10. Spare Parts – Identification and Ordering 10.1 Identification of spare parts Each spare part of the APV heat exchanger is allocated a unique Item Number. For gaskets and heat exchanger plates see Item Numbers on PHE Plate arrangement drawing. On some heat exchanger plates, the last four digits of the item number are also stamped near one end of the plate.

  • Page 36: Troubleshooting

    11. Troubleshooting 1 Troubleshooting plate heat exchangers Problem Possible Causes Suggested Solutions Reduced heat transfer The inlet temperatures or flow Correct temperatures or flow rates to design conditions. rates do not correspond to the original design. Open the heat exchanger and clean the plates or clean the Plate surfaces have become plates (without opening) by circulating a suitable cleaning fouled on either the product or...
  • Page 37 For more information about our worldwide locations, approvals, certifications, and local representatives, please visit www.apv.com. SPX Corporation reserves the right to incorporate our latest design and material changes without notice or obligation. Design features, materials of construction and dimensional data, as described in this bulletin, are provided for your information only and should not be relied upon unless confirmed in writing.

Table of Contents

Save PDF