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