CN210001671U - Reverse osmosis seawater desalination high-efficiency boron removal system for double-end produced water - Google Patents
Reverse osmosis seawater desalination high-efficiency boron removal system for double-end produced water Download PDFInfo
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- CN210001671U CN210001671U CN201920375377.3U CN201920375377U CN210001671U CN 210001671 U CN210001671 U CN 210001671U CN 201920375377 U CN201920375377 U CN 201920375377U CN 210001671 U CN210001671 U CN 210001671U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model belongs to the technical field of the sea water desalination, especially, relate to the high-efficient boron system that takes off of reverse osmosis sea water desalination of kinds of bi-polar product water, following beneficial effect has (1) the utility model provides a high-efficient boron system that takes off of reverse osmosis sea water desalination of bi-polar product water sets up level reverse osmosis membrane group to the reverse osmosis sea water desalination membrane group of bi-polar product water, can the handling capacity of the second grade reverse osmosis membrane group that significantly reduces, can reduce the investment cost and the running cost of second grade reverse osmosis membrane group effectively (2) set up pressure switch on the dense water outlet end (being B product water end) product water pipe through level reverse osmosis membrane group and control opening and stopping of second grade reverse osmosis system, set up the second blender and mix the intaking and alkali of second grade reverse osmosis membrane group, can cancel and set up level reverse osmosis product water tank (3) the boron content of system product water and be less than 0.5 mg/L, accord with sanitary standard of living (GB 57.
Description
Technical Field
The utility model belongs to the technical field of the sea water desalination, especially, relate to a high-efficient boron system that takes off of reverse osmosis sea water desalination of kinds of bi-polar produced water.
Background
The per capita water resource amount of China is 2220 m3The method is 1/4 which is the world's per capita level and is of the countries which are 13 people's per capita and are the most poor water resources all over the world, the shortage of water resources becomes an important factor for restricting social development, and the problem is still worsened along with the increase of population.
The technological process of medium and large scale reverse osmosis sea water desalting engineering includes mainly water taking system, pre-treating system comprising coagulating deposition tank, valveless filtering tank and mechanical filter/ultrafilter, desalting system comprising high pressure pump, energy recovering device and reverse osmosis membrane stack, post-mineralizing system and concentrated sea water discharging/utilizing system. The desalination system is the core of seawater desalination engineering, the reverse osmosis membrane stack is commonly used in a single-stage and single-stage process, the reverse osmosis membrane shells are installed on a reverse osmosis membrane device in parallel, and a plurality of reverse osmosis membrane elements in the membrane shells are sequentially connected in series. The salt content of the produced water of the single-stage and single-stage process is lower than 500 mg/L, and the produced water meets the national sanitary Standard for Drinking Water (GB 5749-2006). However, the boron content of the produced water is higher than 0.5 mg/L, which exceeds the standard and does not meet the national standard.
At present, a tap water blending method or a two-stage reverse osmosis seawater desalination method is commonly used for controlling the boron content of produced water, wherein, Chinese patent CN 203683262U discloses reverse osmosis boron removal systems, the essence of the system is that -stage reverse osmosis water production tanks are adopted for collecting -stage reverse osmosis membrane group produced water, and the two-stage produced water generated after the boron removal through -stage reverse osmosis membrane group is used as final produced water.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a reverse osmosis seawater desalination high-efficiency boron removal system for kinds of double-end produced water aiming at the defects existing in the prior art.
To this end, the above object of the present invention is achieved by the following technical solutions:
A reverse osmosis seawater desalination high-efficiency boron removal system with two ends producing water, which comprises a reverse osmosis safety filter, a -level high-pressure pump, a -level reverse osmosis membrane group, a second-level high-pressure pump and a second-level reverse osmosis membrane group, wherein an outlet of the reverse osmosis safety filter is communicated with an inlet of the -level high-pressure pump, an outlet of the -level high-pressure pump is communicated with an inlet of the -level reverse osmosis membrane group, the -level reverse osmosis membrane group is a reverse osmosis seawater desalination membrane group with two ends producing water, an A water producing end of the -level reverse osmosis membrane group is a seawater inlet water producing end side, a B water producing end of the -level reverse osmosis membrane group is a water producing end of a concentrated water outlet side, a B water producing end of the -level reverse osmosis membrane group is communicated with an inlet of the second-level high-pressure pump, an outlet of the second-level reverse osmosis membrane group is communicated with an inlet of the second-level reverse osmosis membrane group, the seawater desalination system with an energy lifting mechanism for lifting the reverse osmosis seawater desalination system for lifting the energy lifting of the reverse osmosis seawater desalination, the reverse osmosis seawater desalination high-production water collecting device, and the seawater production water collecting the high-level produced water is a seawater desalination system for collecting the high-level produced water from the high-level produced water collecting high-level produced water produced by the reverse osmosis membrane group, the reverse osmosis seawater collecting high-concentration produced water producing water collecting high-level reverse osmosis membrane element, the reverse osmosis seawater collecting high-concentration produced water producing water collecting tube, the high-concentration reverse osmosis membrane group, the high-concentration reverse osmosis seawater collecting high-.
When adopting above-mentioned technical scheme, the utility model discloses can also adopt or make up the technical scheme who adopts following steps of advancing:
preferably, the energy lifting mechanism is an energy recovery device, a high-pressure side inlet of the energy recovery device is communicated with a concentrated water outlet end of the -level reverse osmosis membrane group, a low-pressure side inlet of the energy recovery device is communicated with an outlet of the reverse osmosis cartridge filter, and a high-pressure side outlet of the energy recovery device is communicated with an inlet of the -level reverse osmosis membrane group.
Preferably, a pressure lift pump is arranged on a connecting pipeline between the outlet of the high-pressure side of the energy recovery device and the inlet of the -stage reverse osmosis membrane group.
Preferably, the operating pressure range of the pressure lift pump is 4.0-6.0 Mpa, and the lift is 20-40 m.
Preferably, an th mixer is arranged on an upstream pipeline of an inlet of the reverse osmosis cartridge filter, and the th mixer is respectively communicated with a sulfuric acid metering pump and a reducing agent metering pump.
Preferably, a second mixer is arranged on a connecting pipeline between the second-stage high-pressure pump and the -stage reverse osmosis membrane group, and the second mixer is also communicated with an alkali metering pump.
Preferably, a pressure switch is arranged on a connecting pipeline between a water production end B of the -stage reverse osmosis membrane module and the secondary high-pressure pump, and the pressure switch is used for controlling the start and stop of the secondary reverse osmosis membrane module.
Preferably, the reverse osmosis cartridge filter has a filtration precision of 5 μm.
Preferably, the operating pressure range of the -level high-pressure pump is 4.0-6.0 MPa, and the head is 400-600 m.
Preferably, the operating pressure range of the second-stage high-pressure pump is 0.5-1.9 MPa, and the lift is 50-190 m.
The utility model provides a high-efficient boron system that takes off of reverse osmosis sea water desalination of kinds of bi-polar product water has following beneficial effect:
(1) the utility model provides a high-efficient boron system that takes off of reverse osmosis sea water desalination of water is produced to bi-polar sets up level reverse osmosis membrane group into the reverse osmosis sea water desalination membrane group that the water was produced to the bi-polar, and the investment cost and the running cost of second grade reverse osmosis membrane group can be reduced effectively to the throughput of second grade reverse osmosis membrane group that can significantly reduce.
(2) A pressure switch is arranged on a concentrated water outlet end (namely a water production end B) of the -level reverse osmosis membrane group to control the start and stop of the secondary reverse osmosis system, a second mixer is arranged to mix the inlet water and the alkali of the secondary reverse osmosis membrane group, and a -level reverse osmosis water production tank can be omitted.
(3) The boron content in the water produced by the system is lower than 0.5 mg/L, and the system meets the sanitary Standard for Drinking Water (GB 5749-2006).
(4) The utility model provides a high-efficient boron system that takes off of reverse osmosis sea water desalination of water is produced to bi-polar has practical application in certain sea water desalination engineering, and engineering practice shows that, the high-efficient boron system that takes off of reverse osmosis sea water desalination of above-mentioned bi-polar water production reasonable in design, and product water quality of water is up to standard, and the operation is reliable and stable, is the reasonable effectual system of sea water desalination.
Drawings
FIG. 1 is a schematic diagram of an efficient boron removal system for reverse osmosis seawater desalination of kinds of double-end produced water provided by the present invention;
in the figure, 1-reverse osmosis cartridge filter, 201- -level high-pressure pump, 202-level two-level high-pressure pump, 301- -level reverse osmosis membrane group, 302-level two-level reverse osmosis membrane group, 401-energy recovery device, 402-pressure lift pump, 501- th mixer and 502-second mixer are arranged.
Detailed Description
The invention is described in further detail with reference to the figures and the embodiments.
A reverse osmosis seawater desalination high efficiency boron removal system with double-end produced water comprises a reverse osmosis safety filter 1, a -level high pressure pump 201, a -level reverse osmosis membrane group 301, a two-level high pressure pump 202 and a two-level reverse osmosis membrane group 302, wherein an outlet of the reverse osmosis safety filter 1 is communicated with an inlet of the -level high pressure pump 201, an outlet of the -level high pressure pump 201 is communicated with an inlet of the -level reverse osmosis membrane group 301, the reverse osmosis membrane group 301 with two ends producing water is a reverse osmosis seawater membrane group, an A produced water end of the -level reverse osmosis membrane group 301 is a water producing end on a seawater inlet side, a B produced water end of the -level reverse osmosis membrane group 301 is a water producing end on a concentrated water side, a B produced water end of the reverse osmosis membrane group 301 with a second-level high pressure pump 202 is communicated with an inlet of the two-level high pressure pump 202, an outlet of the two-level reverse osmosis membrane group 202 is communicated with an inlet of the reverse osmosis membrane group 302, an inner -level reverse osmosis membrane element is a polyamide membrane element for seawater desalination, a membrane element for collecting the produced water from a central produced water, and a produced water is a produced water from a concentrate produced end of the concentrate production pump 301, and a concentrate produced water producing end is a concentrate produced water producing end of the concentrate production water production end of the concentrate.
The efficient boron removal system for reverse osmosis seawater desalination with two ends producing water further comprises an energy recovery device 401, wherein a high-pressure side inlet of the energy recovery device 401 is communicated with a concentrated water outlet end of the -level reverse osmosis membrane group 301, a low-pressure side inlet of the energy recovery device 401 is communicated with an outlet of the reverse osmosis cartridge filter 1, and a high-pressure side outlet of the energy recovery device 401 is communicated with an inlet of the -level reverse osmosis membrane group 301.
A pressure lifting pump 402 is arranged on a connecting pipeline between the high-pressure side outlet of the energy recovery device 401 and the inlet of the -stage reverse osmosis membrane module 301.
The operation pressure range of the pressure lift pump 402 is 4.0-6.0 Mpa, and the lift is 20-40 m.
An th mixer 501 is arranged on an upstream pipeline of an inlet of the reverse osmosis cartridge filter 1, and the th mixer 501 is respectively communicated with a sulfuric acid metering pump and a reducing agent metering pump.
A second mixer 502 is arranged on a connecting pipeline between the second-stage high-pressure pump 202 and the -stage reverse osmosis membrane group 301, and the second mixer 502 is also communicated with an alkali metering pump.
A pressure switch is arranged on a connecting pipeline between the water production end B of the -stage reverse osmosis membrane group 301 and the secondary high-pressure pump 202, and the pressure switch is used for controlling the start and stop of the secondary reverse osmosis membrane group 302.
The reverse osmosis cartridge filter 1 has the filtration precision of 5 mu m, the operating pressure range of the -level high-pressure pump 201 is 4.0-6.0 MPa, the head is 400-600 m, and the operating pressure range of the second-level high-pressure pump 202 is 0.5-1.9 MPa, and the head is 50-190 m.
The above detailed description is provided for explaining the present invention, and is only a preferred embodiment of the present invention, but not for limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made by the present invention are within the scope of the present invention.
Claims (10)
- The reverse osmosis seawater desalination high-efficiency boron removal system with two ends producing water is characterized by comprising a reverse osmosis safety filter, a -level high-pressure pump, a 0-level reverse osmosis membrane group, a second-level high-pressure pump and a second-level reverse osmosis membrane group, wherein an outlet of the reverse osmosis safety filter is communicated with an inlet of the -level high-pressure pump, an outlet of the -level high-pressure pump is communicated with an inlet of the -level reverse osmosis membrane group, the -level reverse osmosis membrane group is the reverse osmosis seawater desalination membrane group with two ends producing water, an A water producing end of the -level reverse osmosis membrane group is a water producing end on a seawater inlet side, a B water producing end of the -level reverse osmosis membrane group is a water producing end on a concentrated water outlet side, a B water producing end of the -level reverse osmosis membrane group is communicated with an inlet of the second-level high-pressure pump, an outlet of the second-level high-pressure pump is communicated with an inlet of the second-level reverse osmosis membrane group, and an energy lifting mechanism is arranged on the reverse osmosis seawater desalination high-efficiency boron removal system with the reverse osmosis high-efficiency boron.
- 2. The reverse osmosis seawater desalination high-efficiency boron removal system with double water production ends as claimed in claim 1, wherein the energy lifting mechanism is an energy recovery device, the high-pressure side inlet of the energy recovery device is communicated with the concentrated water outlet end of the -stage reverse osmosis membrane group, the low-pressure side inlet of the energy recovery device is communicated with the outlet of the reverse osmosis cartridge filter, and the high-pressure side outlet of the energy recovery device is communicated with the inlet of the -stage reverse osmosis membrane group.
- 3. The reverse osmosis seawater desalination high efficiency boron removal system with double water production ends as claimed in claim 2, wherein a pressure lift pump is arranged on a connecting pipeline between the outlet of the high pressure side of the energy recovery device and the inlet of the -stage reverse osmosis membrane group.
- 4. The reverse osmosis seawater desalination high-efficiency boron removal system with double-end water production according to claim 3, wherein the operating pressure range of the pressure lift pump is 4.0-6.0 MPa, and the lift is 20-40 m.
- 5. The reverse osmosis seawater desalination high-efficiency boron removal system with two ends producing water according to claim 1, wherein an th mixer is arranged on an upstream pipeline of an inlet of the reverse osmosis cartridge filter, and the th mixer is respectively communicated with a sulfuric acid metering pump and a reducing agent metering pump.
- 6. The reverse osmosis seawater desalination high-efficiency boron removal system with two ends producing water as claimed in claim 1, wherein a second mixer is arranged on a connecting pipeline between the second-stage high-pressure pump and the -stage reverse osmosis membrane group, and the second mixer is also communicated with an alkali metering pump.
- 7. The reverse osmosis seawater desalination high-efficiency boron removal system with two ends producing water according to claim 1, wherein a connecting pipeline between the water producing end B of the -stage reverse osmosis membrane module and the secondary high-pressure pump is provided with a pressure switch, and the pressure switch is used for controlling the start and stop of the secondary reverse osmosis membrane module.
- 8. The reverse osmosis seawater desalination high efficiency boron removal system with double water production ends as claimed in claim 1, wherein the reverse osmosis cartridge filter has a filtration precision of 5 μm.
- 9. The reverse osmosis seawater desalination high-efficiency boron removal system with double water production ends as claimed in claim 1, wherein the operating pressure range of the -level high-pressure pump is 4.0-6.0 MPa, and the head is 400-600 m.
- 10. The reverse osmosis seawater desalination high-efficiency boron removal system with double-end water production according to claim 1, wherein the operating pressure range of the second-stage high-pressure pump is 0.5-1.9 MPa, and the head is 50-190 m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920375377.3U CN210001671U (en) | 2019-03-24 | 2019-03-24 | Reverse osmosis seawater desalination high-efficiency boron removal system for double-end produced water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920375377.3U CN210001671U (en) | 2019-03-24 | 2019-03-24 | Reverse osmosis seawater desalination high-efficiency boron removal system for double-end produced water |
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| CN210001671U true CN210001671U (en) | 2020-01-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114509549A (en) * | 2022-02-07 | 2022-05-17 | 西安西热水务环保有限公司 | Continuous detection system and method for boron in seawater desalination production water |
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- 2019-03-24 CN CN201920375377.3U patent/CN210001671U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114509549A (en) * | 2022-02-07 | 2022-05-17 | 西安西热水务环保有限公司 | Continuous detection system and method for boron in seawater desalination production water |
| CN114509549B (en) * | 2022-02-07 | 2024-06-11 | 西安西热水务环保有限公司 | Continuous detection system and method for boron in seawater desalination produced water |
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