Grundfos BMPX, Installation And Operating Instructions Manual

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4
CONTENTS
Page
1. Symbols used in this document 4
2. General description 4
3. Commissioning 4
4. Pumped liquids 4
5. Technical data 5
5.1 Sound pressure level, inlet pressure and temperatures 5
6. Preparation 5
7. Installation 5
7.1 BMP hp feed pump 5
7.2 X-Changer 5
7.3 BM hp circulation pump 6
8. Pipe connection 6
8.1 Inlet and discharge pipes 6
9. Electrical connection 6
9.1 BMP hp feed pump 6
9.2 BM hp circulation pump 7
10. Before starting the BMPX 8
11. Start-up and operation 9
11.1 BMPX 9
11.2 Flow control and balancing 9
11.3 High-pressure flow control 9
11.4 Low-pressure flow control 9
11.5 Operation settings 9
11.6 Balancing the X-Changer 9
11.7 BM hp circulation pump 10
12. Checking the operation of the BMPX system 10
13. Maintenance 10
14. Motor bearings 10
15. Shut-down procedure 10
16. Periods of inactivity 10
16.1 Start-up after a period of inactivity 10
17. Limitations to operation, BM hp circulation pump 11
17.1 Cooling 11
18. Fault finding chart 12
18.1 BMP hp feed pump 12
18.2 BM hp circulation pump 13
18.3 X-Changer 14
19. Checking motor and cable 15
20. Disposal 15
1. Symbols used in this document
2. General description
The Grundfos BMPX booster system is designed for desalination
of sea water in reverse osmosis systems, so-called SWRO
systems (SWRO = Sea Water Reverse Osmosis). The design of
the system offers high energy recovery.
The BMPX booster system consists of:
• BMP hp feed pump (hp = high-pressure)
• BM hp circulation pump (hp = high-pressure)
with Variable-Frequency Drive (VFD)
(the pump is installed in a sleeve)
• X-Changer.
The Grundfos BMP hp feed pump is a piston pump, i.e. the flow is
proportional to the motor speed. The pressure is equal to the
back-pressure. Consequently, it is important that the maximum
pump pressure is not exceeded.
The BMPX units are supplied from factory in boxes in which they
must remain until they are to be installed. The units are ready for
installation.
3. Commissioning
Commissioning of the BMPX booster system must be carried out
by competent and certified Grundfos employees to ensure long
and trouble-free operation.
The commissioning includes training on site of the people
maintaining and monitoring the system.
4. Pumped liquids
Thin, non-explosive liquids, not containing solid particles or
fibres. The liquid must not chemically attack the materials of the
BMPX units. In case of doubt, contact Grundfos.
The raw water to the BMP hp feed pump and X-Changer must be
filtered to maximum 5 microns abs (abs.
β
10
> 5000).
The BMPX system must never operate with water/liquid
containing substances removing surface tension, e.g. soap. If this
type of detergent is used for cleaning the system, the water/liquid
must be led around the units via a bypass.
Fig. 1 BMPX booster system
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.
Warning
If these safety instructions are not observed,
it may result in personal injury!
Caution
If these safety instructions are not observed,
it may result in malfunction or damage to the
equipment!
Note
Notes or instructions that make the job easier
and ensure safe operation.
Note
If this requirement is not met, the BMPX warranty
will be invalidated.
Warning
The BMPX booster system is designed solely for
brackish water and sea water and must not be
used for other liquids.
Pump type Recommended pumped liquids
BMP
• Raw water
• potable water
• groundwater
• surface water (lakes and rivers)
Note
During transportation and storage, the pumps
must never be preserved with liquids which are
aggressive to the pump materials.
T
M
03
58
16
40
06
Permeate
Concentrate
(brine)
BMP hp
feed
pump
BM hp circulation pump
X-Changer
Sea-water feed pump