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3.4 Function

The plate heat exchanger consists of a pack of corrugated metal plates with
portholes for the input and output of the two separate fluids. The heat transfer
between the two fluids takes place through the plates.

The plate pack is assembled between a frame plate and a pressure plate and
compressed by tightening bolts. The plates are fitted with a gasket which seals
the channel and directs the fluids into alternate channels. The plate
corrugation promotes fluid turbulence and supports the plates against
differential pressure.

Figure 2: Principle of plate pack arrangement, gaskets facing the pressure plate.

200000420-4-EN-GB

20

3 Description

EN

Содержание FrontLine ClipLine

Страница 1: ...Gasketed plate heat exchangers FrontLine ClipLine Lit Code 200000420 4 EN GB Instruction Manual...

Страница 2: ...roperty rights owned by Alfa Laval Corporate AB No part of this document may be copied re produced or transmitted in any form or by any means or for any purpose without Alfa Laval Corporate AB s prior...

Страница 3: ...manuals ili upotrijebite QR kod Magyar Az n nyelv re leford tott haszn lati tmutat t let ltheti a www alfalaval com gphe manuals weboldalr l vagy haszn lja a QR k dot Italiano Scarica la versione in l...

Страница 4: ...lfalaval com gphe manuals ali uporabite kodo QR Slovensk Miestne jazykov verzie tohto n vodu na pou vanie si stiahnite z www alfalaval com gphe manuals alebo pou ite QR k d Svenska Ladda ned lokala sp...

Страница 5: ...omponents 15 3 2 Name plate 17 3 3 A measure 19 3 4 Function 20 3 5 Multi section 21 3 6 Multi pass 22 3 7 Identification of plate side 22 4 Installation 23 4 1 Before installation lifting and transpo...

Страница 6: ...configuration 55 6 3 2 Opening procedure 55 6 4 Manual cleaning of opened units 59 6 4 1 Deposits removable with water and brush 59 6 4 2 Deposits not removable with water and brush 60 6 5 Closing 61...

Страница 7: ...its it is a safety issue if the wrong pipe is connected to the wrong port double check that the correct media is connected to the correct port according to the PHE drawings It is a risk to damage the...

Страница 8: ...ue for the delivered product equipment serial number Instructions shall be accompanied where appropriate by the technical documents drawings and diagrams necessary for a full understanding of these in...

Страница 9: ...acking Packing material consists of wood plastics cardboard boxes and in some cases metal straps Wood and cardboard boxes can be reused recycled or used for energy recovery Plastics should be recycled...

Страница 10: ...200000420 4 EN GB 10 1 Introduction EN...

Страница 11: ...plate heat exchanger should be used in accordance with the specified configuration of material media types temperatures and pressure for your specific plate heat exchanger 2 2 Definitions of expressi...

Страница 12: ...ries caused by dropped articles Protective helmet Any helmet designed to protect the head from accidental injury Protective goggles A pair of tight fitting eyeglasses worn to protect the eyes from haz...

Страница 13: ...of falling For any kind of work at height always ensure that safe means of access is available and used Follow local work at height regulations and guidelines Use scaffolds or a mobile work platform...

Страница 14: ...200000420 4 EN GB 14 2 Safety EN Safety...

Страница 15: ...plates gaskets and in some cases transition plates 4 Pressure plate Moveable plate that can contain a various number of portholes for the connection of the piping system 5 Guiding bar Keeps the channe...

Страница 16: ...nger The plate pack performing such a service is called a section Corners The connection plates can be configured by selecting different corner connections such as single double pass through or blind...

Страница 17: ...against which the plate heat exchanger is approved according to the pressure vessel code in question The design temperature 10 may exceed the maximum operating temperature 8 for which the gaskets hav...

Страница 18: ...AX OP TEMP FLUID GROUP YEAR OF MANUFACTURING MANUFACTURER ALLOWABLE TEMP MIN MAX TYPE SERIAL NUMBER PT PS Service Year Manufacturer Fluid group Inlet Outlet Allowable press Allowable temp Volume V Man...

Страница 19: ...3 3 A measure The A measure is the distance from the frame plate 1 to the pressure plate 2 A 1 2 200000420 4 EN GB 19 Description 3 EN...

Страница 20: ...plate pack is assembled between a frame plate and a pressure plate and compressed by tightening bolts The plates are fitted with a gasket which seals the channel and directs the fluids into alternate...

Страница 21: ...edia needs to be heated in one stage and then cooled down in the next stage Each of the connection plates can be configured by selecting different corner connections such as single double pass through...

Страница 22: ...esses that require longer heating periods if the media requires slower heating 3 3 1 2 4 Figure 4 Example of a multi pass set up 1 End plate I 2 End plate II 3 Channel plates 4 Turning plate 3 7 Ident...

Страница 23: ...ss or strain Avoid vibration install any anti vibration equipment if necessary The plate heat exchanger connections on the follower and connector grids have little strength against pipe work or nozzle...

Страница 24: ...ed for the task Always check the center of gravity before unpacking or moving the equipment Keep the center of gravity as low as possible Always move slow and steady Risk assessment Always perform a t...

Страница 25: ...fasteners etc inside the shaded area Foundation Install on a flat foundation designed for the equipment weight Elbow To make it easier to disconnect the plate heat exchanger an elbow should be fitted...

Страница 26: ...the correct A measure check against the PHE drawing before the piping system is connected If necessary adjust the A measure NOTE If the A measure has to be adjusted remove the pipes from the pressure...

Страница 27: ...stretch film There are three main versions of crates Manufactured sides sides and a top made in separate pieces Flip box a box with hinges in the sides and a loose top Crafted sides sides and top craf...

Страница 28: ...s Labels symbols and warning placards are located on the external surfaces of the crates and outline the handling principles which must be observed Never leave a hanging load unattended When the equip...

Страница 29: ...es Make sure that the crate is firmly supported Place blocks or plates under it if required When working under a hanging load for example when assembling the stands you must secure the load from falli...

Страница 30: ...sides Opening Unpacking area The minimum unpacking area must be at least twice the size of the largest crate When the crate is removed but the equipment is still assembled with the pallet remove any l...

Страница 31: ...s on the crate and the equipment Wear personal protective equipment when handling the equipment during unpacking and installation Handle the equipment with precaution See Section Personal protective e...

Страница 32: ...on the crate and the equipment Wear personal protective equipment when handling the equipment during unpacking and installation Handle the equipment with precaution See Section Personal protective eq...

Страница 33: ...nt when handling the equipment during unpacking and installation Handle the equipment with precaution See Section Personal protective equipment in Chapter Safety A crate with crafted sides and top is...

Страница 34: ...ure that all bolts are properly tightened Make sure that the stands and feet are properly tightened NOTE Some equipment is delivered with the stands disassembled Check that connection piping can be re...

Страница 35: ...the equipment during unpacking and installation Handle the equipment with precaution See Section Personal protective equipment in Chapter Safety WARNING Risk of personal injury Never work under hangi...

Страница 36: ...a forklift Disassemble equipment from pallet Uncrate the equipment according to Section Installation Unpacking the crate It is recommended to let the equipment remain assembled with the pallet and han...

Страница 37: ...ngs NOTE Do not lift up the equipment and the pallet Only stretch the hoist slings so the equipment will not fall Remove any attachment that assembles the equipment with the pallet Gently lift up the...

Страница 38: ...must be selected and the same attachment points must be used The authorized personnel have full responsibility for selecting components and procedures in a safe and correct way Always be careful duri...

Страница 39: ...200000420 4 EN GB 39 Installation 4 EN...

Страница 40: ...e long enough to be able to rotate the plate heat exchanger without obstruction Consider especially the space for the support column Always be careful during the raising procedure to avoid damage to t...

Страница 41: ...5 Lift the plate heat exchanger off the timber beams 6 Lower the plate heat exchanger into a horizontal position and place it on the floor 200000420 4 EN GB 41 Installation 4 EN...

Страница 42: ...arrangement to avoid crushing 1 On delivery cover plates are attached on the frame plate and support column in the same positions where the stands shall be assembled 2 Lift up the equipment according...

Страница 43: ...below Check the A measure Make sure that all bolts are properly tightened Make sure that the stands and feet are properly tightened Check that connection piping can be removed to perform service Make...

Страница 44: ...200000420 4 EN GB 44 4 Installation EN...

Страница 45: ...several pumps are included in the system make sure you know which one should be activated first Centrifugal pumps must be started with valves closed and the valves must be operated as smoothly as pos...

Страница 46: ...n 4 Increase the flow rate slowly 5 Open the air vent and start the pump A 6 Open the valve slowly NOTE Avoid rapid temperature changes in the plate heat exchanger With media temperatures over 100 C s...

Страница 47: ...w which one should be stopped first 1 Slowly close the valve controlling the flow rate of the pump you are about to stop 2 When the valve is closed stop the pump 3 Repeat the two steps for the other s...

Страница 48: ...200000420 4 EN GB 48 5 Operation EN...

Страница 49: ...rvice center After a long period of use it can be required to regasket the plate heat exchanger See Procedure Regasketing on page 65 Other maintenance that should be performed regularly Keep carrying...

Страница 50: ...proper protective equipment See Section Personal protective equipment in Chapter Safety Sterilisation is performed immediately before starting the next production cycle See Section Sterilisation on p...

Страница 51: ...min Rinsing 5 min Lye 20 min Acid 15 min Rinsing 10 min Rinsing 5 min Stop Lye 20 min Sterilisation 10 min Rinsing 10 min Stop Sterilisation Table 2 Pasteurisers and other heaters Products rich in pr...

Страница 52: ...0 min Stop Sterilisation 10 min 1 In some cases where the risk of growth of microorgan isms is low it is possible to eliminate daily cleaning and re place it with the following procedure Rinsing 20 mi...

Страница 53: ...CIP equipment WARNING Risk of personal injury The residuals after a cleaning procedure shall be handled according to local environmental regulations After neutralization most cleaning solutions may b...

Страница 54: ...f opened units on page 59 Chlorine as a growth inhibitor Chlorine commonly used as a growth inhibitor in cooling water systems reduces the corrosion resistance of stainless steels including high alloy...

Страница 55: ...ment See Section Personal protective equipment in Chapter Safety 6 3 1 Bolt configuration The bolt configuration of the plate heat exchanger varies between different models The major force of the plat...

Страница 56: ...opening vent valves 4 If there are any protection sheets remove them 5 Disassemble pipes from the pressure plate and the connection plate s so that the pressure plate and the connection plate s are f...

Страница 57: ...opening procedure keep the frame plate and pressure plate parallel Skewing of the pressure plate during opening must not exceed 10 mm 2 turns per bolt across the width and 25 mm 5 turns per bolt verti...

Страница 58: ...ying bar If plates are to be numbered do this before removing the plates Plates need not be removed if cleaning is done using only water i e without a cleaning agent WARNING Risk of personal injury Th...

Страница 59: ...osive cleaning liquids Can cause serious injuries to skin and eyes Use proper personal protective equipment when using the cleaning agents See Section Personal protective equipment in Chapter Safety 6...

Страница 60: ...s must be removed from the plate heat exchanger during cleaning For a choice of cleaning agents see Section Cleaning liquids on page 53 1 Brush with cleaning agent 2 Rinse immediately with water NOTE...

Страница 61: ...e correctly positioned in the grooves NOTE If the gasket is wrongly positioned it will show by the fact that it rises out of the gasket groove or that it is positioned outside the groove 4 If the plat...

Страница 62: ...table below for maximum torque Check the A measure during tightening Bolt size Bolt with bearing box Bolt with washer Nm kpm Nm kpm M16 135 13 5 M24 295 29 5 M30 585 58 M39 1300 130 For manual tighte...

Страница 63: ...eets if provided 10 Connect the pipes 11 If the plate heat exchanger does not seal when the A measure has been reached it can be tightened further to the given A measure value minus 0 5 200000420 4 EN...

Страница 64: ...pment The recommended pressure for the leakage test is a pressure equal to the operating pressure 10 of the actual unit but never above the allowable pressure PS as stated on the name plate WARNING Ri...

Страница 65: ...ate heat exchanger refer to Opening on page 55 NOTE Before opening the plate heat exchanger check the warranty conditions If in any doubt contact the Alfa Laval sales representative See Section Warran...

Страница 66: ...e of the plate NOTE Make sure the two gasket prongs are in the correct position Clip on ClipGrip 6 Repeat the procedure on all the plates that needs to be regasketed Close the plate heat exchanger acc...

Страница 67: ...changer consult an Alfa Laval representative 7 1 Storage in crate If storage of the plate heat exchanger after delivery is known in advance inform Alfa Laval when ordering the plate heat exchanger to...

Страница 68: ...after long term out of service If the plate heat exchanger has been taken out of service for an extensive period of time longer than one year the risk of leakage when starting up increases To avoid th...

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