Alfa Laval A MRPX 614HGV-14C Operator's Manual
  1. Manuals
  2. Brands
  3. Alfa Laval Manuals
  4. Water Filtration Systems
  5. A MRPX 614HGV-14C
  6. Operator's manual
Alfa Laval A MRPX 614HGV-14C Operator's Manual

Alfa Laval A MRPX 614HGV-14C Operator's Manual

Self-cleaning hermetic separators
Hide thumbs
Table of Contents

Advertisement

Quick Links

Operator's Manual
Self-cleaning Hermetic Separators
A MRPX 614HGV-14C
C MRPX 614HGV-74C
H MRPX 614HGV-74C
W MRPX 614HGV-74C
A MRPX 714HGV-14C
B MRPX 714HGV-14C
C MRPX 714HGV-74C
H MRPX 714 HGV-74C
W MRPX 714HGV-74C
B BRPX 714HGV-34C
D MRPX 714HGV-34C
C MRPX 518HGV-74C
H MRPX 518HGV-74C
W MRPX 518HGV-74C
B MRPX 618HGV-14C
C MRPX 618HGV-74C
F MRPX 618HGV-74C
H MRPX 618HGV-74C
W MRPX 618HGV-74C
B BRPX 618HGV-34C
D MRPX 618HGV-34C
H MRPX 718HGV-74C
W MRPX 718HGV-74C
H MRPX 818HGV-74C
B MRPX 818HGV-14C
B BRPX 818HGV-34C
H MRPX 818HGV-74C
W MRPX 818HGV-74C
Product No.:
Book No.:
Product No.:
881208-01-01
881208-01-01
881208-01-01
881208-01-01
881208-02-01
881208-02-01
881208-02-01
881208-02-01
881208-02-01
881208-02-01
881208-02-01
881209-01-01
881209-01-01
881209-01-01
881209-02-01
881209-02-01
881209-02-01
881209-02-01
881209-02-01
881209-02-01
881209-02-01
881209-03-01
881209-03-01
881210-01-01
881210-01-02
881210-01-02
881210-01-02
881210-01-02
Multiple
1271058-02 V3

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the A MRPX 614HGV-14C and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Alfa Laval A MRPX 614HGV-14C

Summary of Contents for Alfa Laval A MRPX 614HGV-14C

  • Page 1 Operator’s Manual Self-cleaning Hermetic Separators Product No.: A MRPX 614HGV-14C 881208-01-01 C MRPX 614HGV-74C 881208-01-01 H MRPX 614HGV-74C 881208-01-01 W MRPX 614HGV-74C 881208-01-01 A MRPX 714HGV-14C 881208-02-01 B MRPX 714HGV-14C 881208-02-01 C MRPX 714HGV-74C 881208-02-01 H MRPX 714 HGV-74C 881208-02-01...
  • Page 2 Telephone: +46 8 53 06 50 00 Telefax: +46 8 53 03 10 40 Printed in Sweden, 99-12 © Alfa Laval Separation AB 1999 This publication or any part thereof may not be reproduced or transmitted by any process or means without prior written permission of...
  • Page 3 Study instruction manuals and observe the warnings before installation, operation, service and maintenance. Not following the instructions can result in serious accidents. In order to make the information clear only foreseeable conditions have been considered. No warnings are given, therefore, for situations arising from the unintended usage of the machine and its tools.

  • Page 5: Table Of Contents

    Contents Safety Instructions Separation process 2.1 Basic principles 2.2 General Mechanical function 3.1 Identification and safety signs on the machine 3.2 Power transmission 3.3 Brake 3.4 Speed indication 3.5 Outlet / inlet (twin phase separators) 3.6 Outlet / inlet (single phase separators) 3.7 Axial seals –...
  • Page 6 Operating routine 7.1 Check points Trouble tracing 8.1 Mechanical function 8.2 Sediment discharge function 8.3 Axial seals...

  • Page 7: Safety Instructions

    Strictly follow the instructions for installation, operation and maintenance. • Ensure that personnel are competent and have sufficient knowledge of maintenance and operation, especially concerning emergency stopping procedures. • Use only Alfa Laval genuine spare parts and the special tools supplied.
  • Page 8 1 Safety Instructions DANGER Disintegration hazards • Use the separator only for the purpose and parameter range specified by Alfa Laval. • If excessive vibration occurs, stop separator and keep bowl filled with liquid during rundown. • When power cables are connected, always check direction of motor rotation.
  • Page 9 1 Safety Instructions DANGER Entrapment hazards • Make sure that rotating parts have come to a complete standstill before starting any dismantling work. • To avoid accidental start, switch off and lock power supply before starting any dismantling work. • Assemble the machine completely before start.
  • Page 10 1 Safety Instructions CAUTION Burn hazards • Lubrication oil and various machine surfaces can be hot and cause burns. Cut hazards • Sharp edges on separator discs and lock ring threads can cause cuts.
  • Page 11 1 Safety Instructions Warning signs in the text Pay attention to the safety instructions in this manual. Below are definitions of the three grades of warning signs used in the text where there is a risk for injury to personnel. DANGER Type of hazard This type of safety instruction indicates a...
  • Page 12 1 Safety Instructions...

  • Page 13: Separation Process

    2 Separation process Contents 2.1 Basic principles 2.1.1 Separation by gravity 2.1.2 Centrifugal separation 2.2 General 2.2.1 Throughput 2.2.2 Light phase 2.2.3 Air penetration / inlet pressure...
  • Page 14 2 Separation process...

  • Page 15: Basic Principles

    2 Separation process 2.1 Basic principles Basic principles The purpose of separation can be: • to free a liquid of solid particles. • to separate two mutually insoluble liquids with different densities, removing any solids at the same time. • to separate and concentrate solid particles from a liquid.

  • Page 16: General

    2.2 General 2 Separation process General Twin phase separators The flow of the product through the machine is shown in the adjoining figure. Product is fed to the inlet bend (1) for further conveyance through the hollow bowl spindle (2) to the distributor (3) and onwards through the distribution holes in the discs (4).

  • Page 17: Throughput

    2 Separation process 2.2 General Single phase separators The flow of the product through the machine is shown in the adjoining figure. Product is fed to the inlet bend (1) for further conveyance through the hollow bowl spindle (2) to the distributor (3) and onwards through the distribution holes in the discs (4).

  • Page 18: Light Phase

    2.2 General 2 Separation process 2.2.2 Light phase Twin phase separators only Decreased light phase counterpressure lower concentration Increased light phase counterpressure higher concentration The light phase flow and thus the concentration of the light phase are determined by the pressure difference between the two outlets.

  • Page 19: Mechanical Function

    3 Mechanical function Contents 3.1 Identification and safety signs on the machine 3.2 Power transmission 3.2.1 Motor and starter 3.3 Brake 3.4 Speed indication 3.5 Outlet / inlet (twin phase separators) 3.5.1 Outlet pumps 3.5.2 Inlet device 3.5.3 Axial seals 3.6 Outlet / inlet (single phase separators) 3.6.1...

  • Page 20: Identification And Safety Signs On The Machine

    Identification and safety signs on the machine 3 Mechanical function Identification and safety signs on the machine 1. Machine plate Text on plate (example): Separator A MRPX 614HGV-14C Manufacturing serial No / Year XXXX Product No 881208-01-01 Machine top part 552032-02 Outlet...
  • Page 21 3 Mechanical function Identification and safety signs on the machine 3. Safety label Text on label: DANGER Read the instruction manuals before installation, operation and maintenance. Consider inspection intervals. Failure to strictly follow instructions can lead to fatal injury. If excessive vibration occurs, stop separator and keep bowl filled with liquid during rundown.
  • Page 22 Identification and safety signs on the machine 3 Mechanical function DANGER Disintegration hazard This machine must not be operated with higher bowl speed than 4607 r/min. Space reserved for plate indicating representative...

  • Page 23: Power Transmission

    3 Mechanical function 3.2 Power transmission Power transmission Electromotor Bowl spindle 10. Box for electric and thermistor (Note! Special motor with Worm connections. built-in thermistors) Worm wheel To be remedied only by authorized Coupling Cooling coil for oil bath personnel. It is important for the sake of Worm wheel shaft Cooling water inlet/outlet security during maintenance to have a...
  • Page 24 3.2 Power transmission 3 Mechanical function The worm gear has been specially designed to operate at a low sound level. To keep the oil temperature low, a cooling coil is installed in the worm gear housing. The oil is cooled by the water flowing through the coil (8).

  • Page 25: Motor And Starter

    For this purpose the separator is equipped with one of following two motor types: CT motor This motor has been designed by Alfa Laval as “Control-torque motor” - abbreviated to CT motor. The motor has some extra features compared with a standard three phase motor with the same kW rating.

  • Page 26: Brake

    3.2 Brake 3 Mechanical function Brake To shorten the bowl retardation time and thus quickly pass the critical speed, the brake must always be used when the machine is to be stopped. The machine is provided with a pneumatic brake, which is actuated when compressed (max.
  • Page 27 3 Mechanical function 3.2 Speed indication Remote indication of speed (option) In addition to the revolution counter, the separator can be provided with a device for remote indication of speed, showing the number of revolutions made by the worm wheel shaft. Remote indication is obtained by an electronic speed instrument.

  • Page 28: Outlet / Inlet (Twin Phase Separators)

    3.5 Outlet / inlet (twin phase separators) 3 Mechanical function Outlet / inlet (twin phase separators) 3.5.1 Outlet pumps The pumps are fixed on to the top of the bowl and thus follow its rotation. They provide the necessary pressures for the heavy phase and the light phase.
  • Page 29 3 Mechanical function 3.5 Outlet / inlet (twin phase separators) The sealing element and wear ring must always be flushed with liquid when the bowl rotates. The seals are therefore supplied, through special channels, with flushing water, and during the CIP-period with CIP-liquid.

  • Page 30: Outlet / Inlet (Single Phase Separators)

    3.6 Outlet / inlet (single phase separators) 3 Mechanical function Outlet / inlet (single phase separators) 3.6.1 Outlet pump The pump is fixed on to the top of the bowl and thus follows its rotation. It provides the necessary pressure for the clarified phase. It is assumed that the separator is supplied with adequate inlet pressure.

  • Page 31: Axial Seals - Cooling System

    3 Mechanical function 3.6 Axial seals – cooling system The sealing element and wear ring must always be flushed with liquid when the bowl rotates. The seals are therefore supplied, through special channels, with flushing water, and during the CIP-period with CIP-liquid. Axial seals –...
  • Page 32 3.6 Axial seals – cooling system 3 Mechanical function During separation The cooling water flows in throughout the separating period. The flushing water should flow through the indication tube (7). The flushing water should be clear and not discoloured. NOTE If the flushing water is discoloured, this may be due to leaking axial seals.

  • Page 33: Bowl

    3 Mechanical function 3.8 Bowl Bowl Twin phase separators The bowl body (1) and the bowl hood (2) which make up the casing of the bowl are held together by the large lock ring (3). Housed in the bowl are the distributor (4), distributing cone (7) and the disc stack (5), where the separation takes place.
  • Page 34 3.8 Bowl 3 Mechanical function Single phase separators The bowl body (1) and the bowl hood (2) which make up the casing of the bowl are held together by the large lock ring (3). Housed in the bowl are the distributor (4), distributing cone (7) and the disc stack (5), where the separation takes place.

  • Page 35: Sediment Discharge Function

    4 Sediment discharge function Contents 4.1 Function description 4.2 Operating water module compact (OWMC)

  • Page 36: Function Description

    4.1 Function description 4 Sediment discharge function Function description Bowl Coil springs 13. Operating water supply from ‘‘4.2 Sliding bowl bottom Closing water chamber the OWMC, see Operating water module Operating slide Opening water channel compact (OWMC)” on page Sediment ports (discharge) Seal ring 10.
  • Page 37 4 Sediment discharge function 4.1 Function description The sediment discharge takes place through a number of ports (3) in the bowl wall. Between discharges these ports are closed by the sliding bowl bottom (1), which constitutes an internal bottom in the separating space. The sliding bowl bottom is held against a seal ring (4) by the water acting on its underside.

  • Page 38: Operating Water Module Compact (Owmc)

    4.2 Operating water module compact (OWMC) 4 Sediment discharge function Operating water module compact (OWMC) Purpose The separator bowl can be emptied from solids by two different sediment discharge volumes determined by the duration of the increased operating liquid flow from the Operating Water Module Compact (OWMC), i.e.
  • Page 39 4 Sediment discharge function 4.2 Operating water module compact (OWMC) The OWMC gives a two-step flow which implies that the liquid flows into a one channel system in two steps, see the illustration below. The first step creates a high liquid flow which triggers a sediment discharge, and the second step (with a lower flow) will admit the bowl to close while closing (make-up) liquid is added to the bowl.
  • Page 40 4.2 Operating water module compact (OWMC) 4 Sediment discharge function Settings Start to set the large discharge volume. Proceed in following way: 1. Set the air pressure regulator (11) to 400 kPa (4 bar). 2. Initiate a discharge by opening solenoid valve for air supply inlet (506c).

  • Page 41: Installation And First Start

    5 Installation and first start Contents 5.1 Preparations 5.2 Before first start 5.3 First start 5.4 Operation 5.4.1 Ejection process 5.4.2 Cleaning 5.4.3 Separation 5.4.4 Operation 5.5 Stopping...

  • Page 42: Preparations

    5.1 Preparations 5 Installation and first start Preparations 1. Set up the machine (without the bowl) according to the installation instructions. 2. Flush the piping thoroughly to remove any residues such as chips, welding beads, etc. NOTE All piping must be disconnected from the separator.

  • Page 43: Before First Start

    5 Installation and first start 5.1 Before first start Before first start • Pour about 13 litres lubricating oil of correct grade into the worm gear housing – see “Lubricants” in Installation Manual . • Check the oil (approx. half way up the sight glass).

  • Page 44: First Start

    5.3 First start 5 Installation and first start First start • Start the machine • Check the direction of rotation (see revolution counter). NOTE At the switch-over to D the amperage will Revolution counter increase considerably, but will quickly drop towards the idling level provided that the motor is correctly connected.
  • Page 45 5 Installation and first start 5.3 Operation • Check that the bowl is tightly closed – no water in the cyclone outlet. • Disconnect the pipes for cooling water to the outlet seals. Check for possible leakage from these. Major leaks must not occur. Minor leaks may temporarily be left uncorrected.

  • Page 46: Stopping

    5.3 Stopping 5 Installation and first start 5.4.3 Separation • Supply process liquid. • Check the inlet pressure, see “Selection of outlet impeller (twin phase separators)” in Installation Manual . • Adjust the outlet pressures, see “Selection of outlet impeller (twin phase separators)” in Installation Manual .

  • Page 47: Cleaning

    6 Cleaning Contents 6.1 Check of cleaning 6.1.1 Disc pressure...

  • Page 48: Check Of Cleaning

    6.1 Check of cleaning 6 Cleaning Check of cleaning The bowl should be dismantled and the cleaning checked approx. 3 – 4 days after the first operation with process liquid. Repeat the check after a further 14 days. If the results are favourable, the bowl can be left untouched until a minor overhaul is due.
  • Page 49 6 Cleaning 6.1 Check of cleaning 6.1.1 Disc pressure In a tightened bowl the disc pressure may in time decrease so that the individual discs are not stable, although the guide mark on the lock ring is directly aligned to the corresponding mark on the bowl hood.
  • Page 50 6.1 Check of cleaning 6 Cleaning...

  • Page 51: Operating Routine

    7 Operating routine Contents 7.1 Check points 7.1.1 Before start 7.1.2 Start and run-up 7.1.3 Separation 7.1.4 Cleaning 7.1.5 Stop...

  • Page 52: Check Points

    7.1 Check points 7 Operating routine Check points 7.1.1 Before start 1. Check that the hook bolts of the outlet, the screws of the frame hood and the centring ring are all tightened. 2. Check that inlet device is tightened. 3.

  • Page 53: Separation

    7 Operating routine 7.1 Check points 6. Check that water flows from the oil cooling coil and the axial seals. DANGER Abnormal vibration of the machine during run-up may be due to wrong assembly or bad cleaning of the bowl. If so, stop the machine immediately and inspect the bowl.

  • Page 54: Stop

    7.1 Check points 7 Operating routine 7.1.5 Stop Do not stop separator uncleaned, since it will lead to that manually cleaning has to be done before start up. The bowl must be closed and filled with liquid during the run down period. Water is fed to the axial seals automatically until the bowl has stopped.

  • Page 55: Trouble Tracing

    8 Trouble tracing Contents 8.1 Mechanical function 8.2 Sediment discharge function 8.2.1 OWMC related faults 8.3 Axial seals...

  • Page 56: Mechanical Function

    8.1 Mechanical function 8 Trouble tracing Mechanical function (except sediment discharge function and axial seals) During a start, the following functions are disconnected: Overload protection (bimetal relay) and overcurrent protection (when star connection). Indication Cause Remedy Start No control voltage Power supply failure.
  • Page 57 8 Trouble tracing 8.1 Mechanical function Indication Cause Remedy Noise and possibly vibration Damaged ball bearing Check and change bearing Worm gear badly worn Change worm and worm wheel Height settings of paring disc Correct settings, see Maintenance Manual are incorrect See Maintenance Manual Incorrect assembly Stop the separator with water or product and find out the cause...
  • Page 58 8.1 Mechanical function 8 Trouble tracing Indication Cause Remedy Speed too low Damaged or worn bearings. Stop immediately as above Overheating Renew Noise Smell Overheated motor Poor cooling Remedy Speed too high Power supply frequency too Check. Remedy high Motor defect Check.

  • Page 59: Sediment Discharge Function

    8 Trouble tracing 8.2 Sediment discharge function Sediment discharge function Indication Cause Remedy The bowl does not eject or Air bubbles in piping between Purge the system for air the volume is too small the OWMC and the separator Operating water leakage Change the seals through valve plugs in operating slide or seal ring in...
  • Page 60 8.2 Sediment discharge function 8 Trouble tracing 8.2.1 OWMC related faults Indication Cause Corrective actions Page The bowl does not eject Needle valve for setting of Adjust the throttling or the volume is too small discharge is throttled small too much Air pressure for setting of Adjust the air pressure large discharge is too low...

  • Page 61: Axial Seals

    8 Trouble tracing 8.3 Axial seals Axial seals Indication Cause Remedy Product discharging through Bowl is open or untight ‘‘8.2 Sediment discharge cyclone outlet during function” on page 59 operation Outlet seals are leaky • Remove pipes (1) and (6). (twin phase separators) •...
  • Page 62 8.3 Axial seals 8 Trouble tracing Indication Cause Remedy Leaky seals Normal wear – Separator has been run without Seals must never run dry. contact between seals and Always check that liquid is fed liquid to the seals Deposits have formed on seals Adjust the cleaning programme because of insufficient cleaning programme...

This manual is also suitable for:

C mrpx 614hgv-74cA mrpx 714hgv-14cB mrpx 714hgv-14cH mrpx 614hgv-74cC mrpx 714hgv-74cH mrpx 714 hgv-74c ... Show all

Table of Contents

Save PDF