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3.3 Function

The 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 frame plate.

200000423-1-EN-GB

15

Description 3

EN

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Содержание M line TS6

Страница 1: ...Gasketed plate and frame heat exchangers BaseLine M line Lit Code 200000423 1 EN GB Instruction Manual ...

Страница 2: ...s the responsibility of the user of this document to comply with all applicable intellectual property laws Without limiting any rights related to this document no part of this document may be copied reproduced or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise or for any purpose without the expressed permission or authorized by Alfa Laval Corporate...

Страница 3: ... ovog korisničkog priručnika na poveznici www alfalaval com gphe manuals ili upotrijebite QR kod Magyar Az Ön nyelvére lefordított használati útmutatót letöltheti a www alfalaval com gphe manuals weboldalról vagy használja a QR kódot Italiano Scarica la versione in lingua locale del manuale di istruzioni da www alfalaval com gphe manuals oppure utilizza il codice QR 日本の www alfalaval com gphe manu...

Страница 4: ...vojem jeziku s spletne strani www alfalaval com gphe manuals ali uporabite kodo QR Slovenský Miestne jazykové verzie tohto návodu na používanie si stiahnite z www alfalaval com gphe manuals alebo použite QR kód Svenska Ladda ned lokala språkversioner av denna bruksanvisning från www alfalaval com gphe manuals eller använd QR koden 中国从 www alfalaval com gphe manuals 或使用 QR 书下书此使用书明书的本地书言版本 ...

Страница 5: ...Before installation 19 4 2 Requirements 20 4 3 Lifting 22 4 4 Raising 23 5 Operation 25 5 1 Start up 25 5 2 Unit in operation 27 5 3 Shut down 27 6 Maintenance 29 6 1 Cleaning Product side 29 6 2 Cleaning Non product side 32 6 3 Opening 34 6 3 1 Bolt configuration 34 6 3 2 Opening procedure 35 6 4 Manual cleaning of opened units 37 6 4 1 Deposits removable with water and brush 38 6 4 2 Deposits no...

Страница 6: ...7 Storage of the heat exchanger 45 7 1 Storage in packing box 45 7 2 Taken out of service 46 ...

Страница 7: ...gulations This may include actions such as piping welding and other kind of maintenance For maintenance actions not described in this manual contact your Alfa Laval representative for advice PHE drawings PHE plate heat exchanger drawings mentioned in the manual are the drawings included in the delivery of the heat exchanger Warranty conditions The warranty conditions are usually included in the si...

Страница 8: ...d in some cases metal straps Wood and cardboard boxes can be reused recycled or used for energy recovery Plastics should be recycled or burnt at a licensed waste incineration plant Metal straps should be sent for material recycling Maintenance All metal parts should be sent for material recycling Oil and all non metal wear parts must be taken care of in accordance with local regulations Scrapping ...

Страница 9: ...ur heat exchanger should be used in accordance with the specified configuration of material media types temperatures and pressure for your specific heat exchanger 2 2 Definitions of expressions WARNING Type of hazard WARNING indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Type of hazard CAUTION indicates a potentially hazardous situa...

Страница 10: ...200000423 1 EN GB 10 2 Safety EN Safety ...

Страница 11: ...of the plate pack is the A dimension i e the measurement between frame plate and pressure plate Refer to the PHE drawing 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 channel plates connection plates and the pressure plate aligned at their lower end 6 Support column Supports carrying and guiding bars 7...

Страница 12: ...tion plates Solid stainless steel plates used in multi pass configurations Supports the unholed ports of a turning plate Section When using connection plates the heat exchanger will contain several sections plate packs Optional components Foot Adjustable feet Protection sheets Cover the plate pack and protect against leakage of hot or aggressive fluids and the hot plate pack Bolt protection Plasti...

Страница 13: ...hanger 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 have been selected for If the operating temperatures as specified on the PHE drawing are to be changed the supplier should be consulted 1 Space for logotype 2 Open space 3 Website for service 4 Drawing of possible locations of connectio...

Страница 14: ... 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 Manufacturer Serial No Type Max op temp Test pressure date WARNING Min Max PS Min Max TS PT 16 Figure 1 Example of CE metallic name plate to the left and CE sticker label name plate to the right 200000423 ...

Страница 15: ...late 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 frame plate 200000423 1 EN...

Страница 16: ... 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 or blind 1 1 2 2 3 3 4 4 Figure 3 Example of a multi section set up 1 End plate I 2 End plate II 3 Channel plates 4 Transition plate 200000423 1 EN GB 16 3 Description EN ...

Страница 17: ...to contact with the partition plate or pressure plate An example of where multi pass can be used is in processes that require longer heating periods if the media requires slower heating 3 3 1 2 4 5 Figure 4 Example of a multi pass set up 1 End plate I 2 End plate II 3 Channel plates 4 Transition plate 5 Turning plate 3 6 Identification of plate side The A side of the plates symmetric pattern are i...

Страница 18: ...200000423 1 EN GB 18 3 Description EN ...

Страница 19: ...use fast closing valves In automated installations the stopping and starting of pumps and actuation of valves should be programmed so that the resulting amplitude and frequency of the pressure variation will be as low as possible If pressure variance is expected install efficient dampers Make sure that no air remains inside the heat exchanger Safety valves shall be installed according to current p...

Страница 20: ...teners etc inside the shaded area Foundation Install on a flat foundation giving enough support to the frame Elbow To make it easier to disconnect the heat exchanger an elbow should be fitted to the connection in the pressure plate directed upwards or sideways and with another flange located just outside the contour of the heat exchanger Shut off valve To be able to open the heat exchanger shut of...

Страница 21: ... correct dimension A check against the PHE drawing before the piping system is connected When opening the heat exchanger the pressure plate must be moved Do not use fixed pipes or other parts like feet fasteners etc inside the shaded area NOTE Dismantle pipes from the pressure plate and the connections plate s so that the pressure plate and the connection plate s are free to move along the carryin...

Страница 22: ... supplied with lifting devices from Alfa Laval the corresponding equipment 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 during the lifting procedure to avoid damage to the heat exchanger components WARNING Never lift by the connections or the stud bo...

Страница 23: ...g enough to be able to rotate the heat exchanger without obstruction Consider especially the space for the support column Always be careful during the raising procedure to avoid damage to the heat exchanger components 1 Place two timber beams on the floor 2 Lift the heat exchanger off the pallet using e g straps 3 Place the heat exchanger on the timber beams 4 Place straps around one bolt on each ...

Страница 24: ...5 Lift the heat exchanger off the timber beams 6 Lower the heat exchanger into a horizontal position and place it on the floor 200000423 1 EN GB 24 4 Installation EN ...

Страница 25: ...uded 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 possible Do not run pumps temporarily empty on the suction side NOTE Adjustments of flow rates should be made slowly in order to avoid the risk of pressure surge water hammer Water hammer is a short lasting pressure peak that ...

Страница 26: ...ease 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 heat exchanger With media temperatures over 100 C slowly increase the temperature preferably at least for one hour 7 When all the air is expelled close the air vent 8 Repeat step 1 on page 25 to step 7 on page 26 for the second media 200000423 1 EN GB 26 5 Operatio...

Страница 27: ...h 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 step 1 on page 27 and step 2 on page 27 for the other side for the second media Continue with both sides of each section 4 If the heat exchanger is shut down for several days or longer it should be drained Draining should also be done ...

Страница 28: ...200000423 1 EN GB 28 5 Operation EN ...

Страница 29: ...essure plate and connection plates are glass blasted Clean with a cloth wetted by paraffin oil Do not degrease the surface Lubricate the threads of the tightening bolts with an EP extreme pressure grease For example use Gleitmo 800 or its equivalent Grease the suspension wheels on the pressure plate and the connection plates 6 1 Cleaning Product side Immediately after a production cycle the produc...

Страница 30: ...ructions for sterilisation can also be included in the documentation of the complete system delivered with the heat exchanger as one part Method Instructions By heat Circulate water of 90 C until all parts of the system have been kept at the required temperature for at least ten minutes Chemically by hypochlorite Before introducing the hypochlorite solution make sure that the equipment is clean ha...

Страница 31: ...ing altogether Table 3 High content of insoluble components e g nectar and tomato juice Products poor in protein Daily Weekly Rinsing 10 min Rinsing 10 min Lye 30 min Lye 30 min Rinsing 10 min Rinsing 5 min Stop Acid 15 min Sterilisation 10 min Rinsing 10 min Stop Sterilisation 10 min Table 4 Low content of insoluble components e g beer and wine Products poor in protein Daily 1 Weekly Rinsing 5 mi...

Страница 32: ...he heat exchanger is designed for steam sterilisation 6 2 Cleaning Non product side The cleaning in place CIP equipment permits cleaning of the heat exchanger without opening it The purpose of cleaning with CIP is as follows Cleaning of fouling and descaling of lime deposits Passivation of cleaned surfaces to reduce susceptibility to corrosion Neutralization of cleaning liquids before draining Fol...

Страница 33: ... for the removal of inorganic scale AlfaDegreaser A non hazardous cleaning agent for the removal of oil grease or wax deposits Also prevents foaming when using Alpacon Descaler AlfaAdd AlfaAdd is a neutral cleaning strengthener designed to be used with AlfaPhos AlfaCaus and Alfa P Scale 0 5 1 vol is added to the total diluted cleaning solution to provide better cleaning results on oily and fatty s...

Страница 34: ... 40 C 104 F WARNING If necessary use proper protective equipment such as safety boots safety gloves and eye protection depending on the type of media in the heat exchanger 6 3 1 Bolt configuration The bolt configuration of the heat exchanger varies between different models The major force of the plate pack is held by the tightening bolts TB To distribute the force evenly over the frame plate and p...

Страница 35: ... heat exchanger NOTE Avoid vacuum in the heat exchanger by opening vent valves 4 Remove the protection sheets if any 5 Dismantle pipes from the pressure plate and the connection plate s so that the pressure plate and the connection plate s are free to move along the carrying bar 6 Inspect the sliding surfaces of the carrying bar and wipe clean and grease 200000423 1 EN GB 35 Maintenance 6 EN ...

Страница 36: ...heat exchanger During the 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 vertically Loosen the four tightening bolts 1 2 3 4 diagonally until the plate pack measure is 1 05 A making sure that the frame plate and pressure plate are parallel while openin...

Страница 37: ...ain a small residual amount of liquid after draining Depending on the type of product and type of installation special arrangements e g drainage box may be necessary to avoid injury to personnel and damage to equipment 6 4 Manual cleaning of opened units CAUTION Never use hydrochloric acid with stainless steel plates Water of more than 330 ppm Cl may not be used in the preparation of cleaning solu...

Страница 38: ...e proper protective equipment Consider risks such as loose particles and the kind of media that has been used in the heat exchanger 1 Start cleaning when the heating surface is still wet and the plates are hanging in the frame 2 Remove deposits using a soft brush and running water 3 Rinse with water using a high pressure hose 6 4 2 Deposits not removable with water and brush Plates must be removed...

Страница 39: ... not damaged 2 Brush the threads of the bolts clean using a steel wire brush or the Alfa Laval thread cleaner Lubricate the threads with a thin layer of grease e g Gleitmo 800 or its equivalent 3 Attach the gaskets to the plates or check that all gaskets are properly attached Check that all gaskets are correctly positioned in the grooves NOTE If the gasket is wrongly positioned it will show by the...

Страница 40: ...page 34 5 If the plate pack has been marked on the outside check this see step 7 on page 36 in Opening on page 34 If the plates are correctly assembled A B A B etc the edges form a honeycomb pattern see picture 6 Press the plate pack together Position the four tightening bolts according to the figure Tighten the four bolts 1 2 3 4 until the plate pack measure is 1 10 A making sure the frame plate ...

Страница 41: ...nsion A Check that all the nuts and bearing boxes are running freely If not clean and lubricate or replace A 3 1 4 2 8 Mount the remaining locking bolts and check measurement A on both sides top and bottom 9 Mount protection sheets if provided 10 Connect pipes 11 If the heat exchanger does not seal when measurement A has been reached it can be tightened further to A minus 1 0 6 6 Pressure test aft...

Страница 42: ...ate WARNING Testing by putting gas compressible media under pressure can be very dangerous Local laws and regulations regarding to the hazard involved in testing with a compressible medium must be respected Hazardous examples are explosion risk due to uncontrolled medium expansion and or suffocation risk due to oxygen depletion WARNING Any rebuilding or modification of the heat exchanger is the re...

Страница 43: ... sealing surfaces are dry clean and free of foreign matter such as fat grease or similar 4 Check the gasket and remove rubber residual before attaching it NOTE Especially the end plate gasket 5 Attach the gasket to the plate Slip the gasket tabs under the edge of the plate NOTE Make sure the two gasket prongs are in the correct position Clip on ClipGrip 6 Repeat the procedure until all plates that...

Страница 44: ...200000423 1 EN GB 44 6 Maintenance EN ...

Страница 45: ...ger after delivery is known in advance inform Alfa Laval when ordering the heat exchanger to ensure that it will be properly prepared for storage before packing Indoor storage Store inside a room with the temperature between 15 and 20 C 60 70 F and humidity up to 70 For outdoor storage read Outdoor storage on page 45 To prevent damage to the gaskets there should not be any ozone producing equipmen...

Страница 46: ... of service for an extensive period of time longer than one year the risk of leakage when starting up increases To avoid this problem it is recommended to let the gasket rubber rest to regain most of its elasticity 1 If the heat exchanger is not in position follow the instructions in Installation on page 19 2 Note the measurement between frame plate and pressure plate A dimension 3 Remove the feet...

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