CN218561247U - System for preparing water for preparing green hydrogen by utilizing sewage - Google Patents
System for preparing water for preparing green hydrogen by utilizing sewage Download PDFInfo
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- CN218561247U CN218561247U CN202223079781.7U CN202223079781U CN218561247U CN 218561247 U CN218561247 U CN 218561247U CN 202223079781 U CN202223079781 U CN 202223079781U CN 218561247 U CN218561247 U CN 218561247U
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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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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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Abstract
The utility model discloses an utilize system of green hydrogen preparation water of sewage preparation, including the former pond, pipe connection has multi-media filter on the former pond, and pipe connection has ultrafiltration device and ultrafiltration water tank in proper order on the multi-media filter, is provided with backwash device between ultrafiltration device and the ultrafiltration water tank, and pipe connection has one-level reverse osmosis unit, middle water tank and second grade reverse osmosis unit in proper order on the ultrafiltration water tank, and pipe connection has the super water purification installation of EDI on the super water purification installation of second grade, and pipe connection has the demineralized water case on the super water purification installation of EDI, and pipe connection has the hydrogen manufacturing electrolysis trough on the demineralized water case. The utility model provides high product water quality to green hydrogen's preparation purity has been improved, this technical route does not have the production of acid-base waste liquid moreover.
Description
Technical Field
The utility model relates to a system for utilize green hydrogen preparation water of sewage preparation belongs to sewage reuse technical field.
Background
The industry considers the production of green hydrogen to be the most environment-friendly at present, because the green hydrogen is produced by electrolyzing water by using wind energy and light energy to generate electricity, the consumed raw material is only water, and the hydrogen produced by electrolyzing the water to produce hydrogen can produce water after being consumed, so that the green hydrogen production method is a sustainable development technical route.
Patent application number 201910356673.3 relates to a distributed electricity generation hydrogen generation system based on sewage treatment plant, through the recycled water hydrogen production that uses sewage treatment plant, make full use of sewage treatment plant's recycled water, make sewage treatment plant become hydrogen generation station and oxygen generation station, reduce the price of hydrogen higher, but this system uses sewage treatment plant effluent as the water source, and is low to the water source purification degree, has reduced the preparation purity of hydrogen.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an utilize system of green hydrogen preparation water of sewage preparation, the utility model discloses an ultrafiltration or many medium filter + one-level reverse osmosis + second grade reverse osmosis + electric desalination handles sewage, has promoted product water quality to green hydrogen's preparation purity has been improved, this technical route does not have the production of acid-base waste liquid moreover.
In order to solve the technical problem, the utility model discloses a following technical scheme: a system for preparing water for preparing green hydrogen by using sewage comprises a raw water pool, wherein a pipeline on the raw water pool is connected with a multi-medium filter, the multi-medium filter is sequentially connected with an ultrafiltration device and an ultrafiltration water tank through pipelines, a backwashing device is arranged between the ultrafiltration device and the ultrafiltration water tank, the ultrafiltration water tank is sequentially connected with a primary reverse osmosis device, a middle water tank and a secondary reverse osmosis device through pipelines, the secondary reverse osmosis device is connected with an EDI ultrapure water device through a pipeline, the EDI ultrapure water device is connected with a desalting water tank through a pipeline, and the desalting water tank is connected with a hydrogen production electrolytic tank through a pipeline; the sewage is treated by ultrafiltration or a multi-media filter, primary reverse osmosis, secondary reverse osmosis and electric desalting, the water quality of produced water is improved, the preparation purity of the green hydrogen is improved, and no acid-base waste liquid is generated in the technical route.
In the system for preparing the green hydrogen preparation water by using the sewage, the pipe section between the multi-medium filter and the ultrafiltration device is provided with the self-cleaning filter; the multi-medium filter can intercept particles with the particle size larger than 100 micrometers, the self-cleaning filter can intercept particles with the particle size larger than 50 micrometers, the ultrafiltration device can intercept particles with the particle size larger than 0.02 micrometers, and water quality SDI entering subsequent processes is guaranteed 15 The fouling index is less than 3.
In the system for preparing the green hydrogen preparation water by using the sewage, the pipe section between the ultrafiltration water tank and the primary reverse osmosis device is sequentially provided with the primary RO safety filter and the primary RO high-pressure pump; the first-level RO cartridge filter is used for intercepting particles with the particle size larger than 5 microns so as to prevent the reverse osmosis membrane element from being polluted and blocked. The first-level RO high-pressure pump is used for providing driving pressure for the reverse osmosis device, overcoming osmotic pressure and ensuring normal water production of the reverse osmosis device.
In the system for preparing the green hydrogen preparation water by using the sewage, the pipe section between the ultrafiltration water tank and the primary RO cartridge filter is provided with the reducing agent feeding port and the scale inhibitor feeding port; the reducing agent is used for eliminating residual chlorine in the water body, and preventing irreversible damage to the reverse osmosis membrane due to oxidation. The scale inhibitor is used for controlling carbonate scale, sulfate scale, calcium fluoride scale and the like and preventing further growth and precipitation of scale crystals.
In the system for preparing the green hydrogen preparation water by using the sewage, the decarbonizer is arranged on the pipe section between the primary reverse osmosis device and the intermediate water tank; the decarbonizer is used for removing carbon dioxide in reverse osmosis produced water so as to avoid influencing the quality of the end produced water. In the system for preparing the water for preparing the green hydrogen by using the sewage, the pipe section between the intermediate water tank and the secondary reverse osmosis device is sequentially provided with the secondary RO cartridge filter and the secondary RO high-pressure pump; the two-stage RO cartridge filter is used for intercepting particles with the particle size larger than 5 microns so as to prevent the reverse osmosis membrane element from being polluted and blocked and protect the reverse osmosis membrane element. The secondary RO high-pressure pump is used for providing driving pressure for the reverse osmosis device, overcoming osmotic pressure and ensuring normal water production of the reverse osmosis device.
In the system for preparing water for preparing green hydrogen by using sewage, the pipe section between the intermediate water tank and the secondary RO cartridge filter is provided with the alkali adding port; the caustic soda is used for converting residual carbon dioxide in the water produced by the first-stage reverse osmosis into carbonate, so that the carbon dioxide is convenient for the second-stage reverse osmosis to intercept.
In the system for preparing water for preparing green hydrogen by using sewage, the backwashing device comprises the backwashing cartridge filter and the backwashing pump which are sequentially connected, and the backwashing pump is arranged at one end close to the ultrafiltration water tank; the backwashing cartridge filter matched with the ultrafiltration device is used for removing tiny particle impurities in the liquid medicine tank, and the backwashing pump is used for flushing the ultrafiltration membrane elements after a specified filtration period so as to ensure effective filtration of the ultrafiltration membrane.
In the system for preparing water for preparing green hydrogen by using sewage, the pipe section between the secondary reverse osmosis device and the EDI ultrapure water device is sequentially provided with the secondary RO water tank and the EDI ultrapure water supply pump, and the EDI ultrapure water supply pump is arranged at one end close to the EDI ultrapure water device; the secondary RO water tank is used for storing secondary RO produced water and providing inlet water for subsequent EDI devices. The EDI ultrapure water supply pump is used for supplying water to the EDI device, and normal EDI water production is guaranteed.
In the system for preparing the water for preparing the green hydrogen by using the sewage, the raw water tank is connected with the water supply pipeline of the sewage plant, and the water supply pipeline of the sewage plant is provided with the bactericide adding port; the bactericide is sterilized with chlorine to prevent contamination of the ultrafiltration membrane elements and the reverse osmosis membrane elements by microorganisms.
Compared with the prior art, the utility model discloses an useful part lies in:
1. the utility model has the advantages that the conductivity of the water production index is less than 1ms/cm, the water quality of the produced water is improved, and the preparation purity of the green hydrogen is improved;
2. the water production index of the utility model has the iron ion content of less than 1.0mg/L, thus improving the water quality of the produced water and improving the preparation purity of the green hydrogen;
3. the water production index of the utility model has the iron ion content of less than 1.0mg/L, thus improving the water quality of the produced water and improving the preparation purity of the green hydrogen;
4. the utility model discloses produce water index chloride ion content <2.0mg/L, promoted product water quality of water to green hydrogen's preparation purity has been improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numerals: 1-raw water tank, 2-multi-media filter, 3-ultrafiltration device, 4-ultrafiltration water tank, 5-backwashing device, 6-first-level reverse osmosis device, 7-middle water tank, 8-second-level reverse osmosis device, 9-EDI ultrapure water device, 10-desalination water tank, 11-hydrogen production electrolytic tank, 12-self-cleaning filter, 13-first-level RO cartridge filter, 14-first-level RO high-pressure pump, 15-reducing agent feeding port, 16-antisludging agent feeding port, 17-decarbonizer, 18-second-level RO cartridge filter, 19-second-level RO high-pressure pump, 20-alkali feeding port, 21-backwashing cartridge filter, 22-backwashing pump, 23-second-level RO water tank, 24-EDI ultrapure water supply pump, 25-sewage plant water pipeline and 26-bactericide feeding port.
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Detailed Description
Embodiment 1 of the utility model: the utility model provides an utilize system of green hydrogen preparation water of sewage preparation, including former pond 1, 1 last pipe connection of former pond has multi-media filter 2, and the last pipe connection in proper order of multi-media filter 2 has ultrafiltration device 3 and ultrafiltration water tank 4, is provided with backwash device 5 between ultrafiltration device 3 and the ultrafiltration water tank 4, and the last pipe connection in proper order of ultrafiltration water tank 4 has one-level reverse osmosis unit 6, middle water tank 7 and second grade reverse osmosis unit 8, and 8 last pipe connections of second grade reverse osmosis unit have EDI ultrapure water device 9, 9 last pipe connections of EDI ultrapure water device have demineralized water tank 10, and 10 last pipe connections of demineralized water tank have hydrogen manufacturing electrolysis trough 11.
Embodiment 5 of the utility model: a system for preparing water for preparing green hydrogen by using sewage comprises a raw water tank 1, wherein a pipeline on the raw water tank 1 is connected with a multi-media filter 2, the multi-media filter 2 is sequentially connected with an ultrafiltration device 3 and an ultrafiltration water tank 4 through pipelines, a backwashing device 5 is arranged between the ultrafiltration device 3 and the ultrafiltration water tank 4, the ultrafiltration water tank 4 is sequentially connected with a primary reverse osmosis device 6, a middle water tank 7 and a secondary reverse osmosis device 8 through pipelines, an EDI ultrapure water device 9 is connected on the secondary reverse osmosis device 8 through a pipeline, a desalting water tank 10 is connected on the EDI ultrapure water device 9 through a pipeline, and a hydrogen production electrolytic tank 11 is connected on the desalting water tank 10 through a pipeline; a self-cleaning filter 12 is arranged on a pipe section between the multi-medium filter 2 and the ultrafiltration device 3; a first-stage RO security filter 13 and a first-stage RO high-pressure pump 14 are sequentially arranged on a pipe section between the ultrafiltration water tank 4 and the first-stage reverse osmosis device 6; a reducing agent feeding port 15 and a scale inhibitor feeding port 16 are arranged on a pipe section between the ultrafiltration water tank 4 and the primary RO cartridge filter 13; a decarbonizer 17 is arranged on the pipe section between the first-stage reverse osmosis device 6 and the middle water tank 7.
The utility model discloses a theory of operation of an embodiment: the utility model discloses the during operation is thrown through germicide and is thrown mouthful 26 and throw in to sewage plant water supply pipeline 25 and throw xxx and carry out germicidal treatment, and the water that comes after the germicidal treatment sends into former water tank 1, sends into multi-media filter 2 through the raw water pump, and self-cleaning filter 12 is sent into to multi-media filter 2 play water, and ultrafiltration device 3 is sent into to self-cleaning filter 12's play water, and ultrafiltration device 3's product water guarantees reverse osmosis's inflow and ultrafiltration self-using water volume. The effluent of the ultrafiltration device 3 is sent into an ultrafiltration water tank 4, when the pressure difference of an ultrafiltration membrane element rises to a specified value or reaches a specified water production amount, a backwashing cartridge filter 21 and a backwashing pump 22 are used for backwashing, the effluent of the ultrafiltration device 3 is sent into a first-stage RO cartridge filter 13, a first-stage RO high-pressure pump 14 and a first-stage reverse osmosis device 6 in sequence through an ultrafiltration water pump for desalting treatment, during the desalting treatment, a sodium bisulfite solution is added into a pipe section between the ultrafiltration water tank 4 and the first-stage RO cartridge filter 13 through a reducing agent adding port 15 to remove residual chlorine in the inlet water and inhibit microbial activity, a scale inhibitor adding port 16 adds xxx into the pipe section between the ultrafiltration water tank 4 and the first-stage RO cartridge filter 13, and the effect is that the water produced by the first-stage reverse osmosis device 6 is sent into a decarbonizer 17 to remove CO2 and then is sent into a middle water tank 7; the produced water in the middle water tank 7 after the removal of CO2 is sent to a second-stage RO cartridge filter 18, a second-stage RO high-pressure pump 19 and a second-stage RO device 8 in sequence through a middle water pump for deep desalination treatment, in the deep desalination treatment process, alkali is added into the middle water tank 7 and the second-stage RO cartridge filter 18 through an alkali adding port 20, carbon dioxide in the second-stage RO produced water is removed and converted into carbonate, the produced water of the second-stage RO device 8 is sent to a second-stage RO water tank 23, and concentrated water flows back to the middle water tank 7; water in the second-stage RO water tank 23 is sent into an EDI ultrapure water device 9 through an EDI ultrapure water supply pump 24 for terminal desalination treatment, so that various indexes of the conductivity of the produced water meet the water use standard, and the produced water in the EDI ultrapure water device 9 is sent into a demineralized water tank 10 and is sent to a hydrogen production electrolytic tank 11 through a demineralized water pump to be used as green hydrogen preparation water; the concentrated water of the EDI ultrapure water device 9 is returned to the secondary RO water tank 23.
Claims (10)
1. The utility model provides an utilize system of green hydrogen preparation water of sewage preparation, includes former pond (1), a serial communication port, there are multi-media filter (2) on former pond (1) pipe connection, there are ultrafiltration device (3) and ultrafiltration water tank (4) on multi-media filter (2) pipe connection in proper order, be provided with between ultrafiltration device (3) and ultrafiltration water tank (4) backwash device (5), there are one-level reverse osmosis unit (6), middle water tank (7) and second grade reverse osmosis unit (8) on ultrafiltration water tank (4) in proper order pipe connection, pipe connection has EDI ultrapure water device (9) on second grade reverse osmosis unit (8), pipe connection has desalination water tank (10) on EDI ultrapure water device (9), pipe connection has hydrogen production electrolysis trough (11) on desalination water tank (10).
2. The system for preparing water for hydrogen production from sewage according to claim 1, wherein a self-cleaning filter (12) is provided in the pipe section between the multi-media filter (2) and the ultrafiltration device (3).
3. The system for preparing water for green hydrogen production using sewage water according to claim 1, wherein a primary RO cartridge filter (13) and a primary RO high pressure pump (14) are sequentially provided on a pipe section between the ultrafiltration water tank (4) and the primary reverse osmosis device (6).
4. The system for preparing water for preparing green hydrogen by using sewage according to claim 3, wherein a reducing agent feeding port (15) and a scale inhibitor feeding port (16) are arranged on a pipe section between the ultrafiltration water tank (4) and the primary RO cartridge filter (13).
5. The system for preparing water for green hydrogen production using sewage water according to claim 1, wherein a decarbonizer (17) is provided on a pipe section between the primary reverse osmosis apparatus (6) and the intermediate water tank (7).
6. The system for preparing water for green hydrogen production using sewage water according to claim 1, wherein a secondary RO cartridge filter (18) and a secondary RO high pressure pump (19) are sequentially provided on a pipe section between the intermediate water tank (7) and the secondary reverse osmosis apparatus (8).
7. The system for preparing water for preparing green hydrogen by using sewage as claimed in claim 6, wherein an alkali adding port (20) is provided on the pipe section between the intermediate water tank (7) and the secondary RO cartridge filter (18).
8. The system for preparing water for preparing hydrogen and green by using sewage as claimed in claim 1, wherein the backwashing device (5) comprises a backwashing cartridge filter (21) and a backwashing pump (22) which are connected in sequence, and the backwashing pump (22) is arranged at one end close to the ultrafiltration water tank (4).
9. The system for producing water for green hydrogen production from sewage according to claim 1, wherein a two-stage RO water tank (23) and an EDI ultrapure water feed pump (24) are provided in this order on a pipe section between the two-stage reverse osmosis apparatus (8) and the EDI ultrapure water apparatus (9), and the EDI ultrapure water feed pump (24) is disposed near an end of the EDI ultrapure water apparatus (9).
10. The system for preparing water for preparing green hydrogen by using sewage water as claimed in claim 1, wherein a sewage plant water inlet pipeline (25) is connected to the raw water tank (1), and a bactericide adding port (26) is arranged on the sewage plant water inlet pipeline (25).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223079781.7U CN218561247U (en) | 2022-11-20 | 2022-11-20 | System for preparing water for preparing green hydrogen by utilizing sewage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223079781.7U CN218561247U (en) | 2022-11-20 | 2022-11-20 | System for preparing water for preparing green hydrogen by utilizing sewage |
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| CN218561247U true CN218561247U (en) | 2023-03-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575049A (en) * | 2023-04-06 | 2023-08-11 | 上海丝竺投资有限公司 | 27MW-1008MW hydrogen production device and method by using PEM (proton exchange membrane) of raw water plant of sea water desalination plant |
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- 2022-11-20 CN CN202223079781.7U patent/CN218561247U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575049A (en) * | 2023-04-06 | 2023-08-11 | 上海丝竺投资有限公司 | 27MW-1008MW hydrogen production device and method by using PEM (proton exchange membrane) of raw water plant of sea water desalination plant |
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