CN216149437U - Multistage formula is concentrated membrane separation equipment section by section - Google Patents
Multistage formula is concentrated membrane separation equipment section by section Download PDFInfo
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- CN216149437U CN216149437U CN202122134732.8U CN202122134732U CN216149437U CN 216149437 U CN216149437 U CN 216149437U CN 202122134732 U CN202122134732 U CN 202122134732U CN 216149437 U CN216149437 U CN 216149437U
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Abstract
The application discloses multi-section-by-section concentration membrane separation equipment, which belongs to the technical field of membrane separation equipment and comprises a raw material container, a feeding pump, a filter, a high-pressure pump, a membrane separation group and a fresh water intermediate tank which are sequentially connected through a pipeline, wherein a concentrated water intermediate tank is arranged between the membrane separation group and the high-pressure pump, and the concentrated water intermediate tank is connected with the membrane separation group through a pipeline; the membrane separation group comprises a plurality of groups of membrane separation units, each membrane separation unit comprises a circulating pump and a membrane shell, the circulating pumps are connected with the membrane shells through pipelines, and a plurality of membrane cores are installed in the membrane shells; a main feeding pipe is connected between the circulating pumps and the high-pressure pump; a water outlet pipe is connected between the membrane shell fresh water outlet and the fresh water intermediate tank, and a circulating pipe is connected between the membrane shell concentrated water outlet and the auxiliary feed pipe of the same membrane separation unit; the concentrated water intermediate tank is connected with a main concentrated water pipe, and the main concentrated water pipe is connected with a plurality of circulating pipes. This application has the effect that separation efficiency is high.
Description
Technical Field
The application relates to the technical field of membrane separation equipment, in particular to multi-section type section-by-section concentration membrane separation equipment.
Background
The membrane is a material with selective separation function, the separation and purification work of different components of the raw material liquid can be realized through different selective separation functions of different membranes, and the process of separation through the membrane is called membrane separation. The existing membrane separation equipment generally adopts a membrane shell, and a filtering membrane is arranged in the membrane shell so as to filter, separate and concentrate fluid passing through the membrane shell. However, the membrane separation is performed only by a single membrane shell, and the separation efficiency is not high.
SUMMERY OF THE UTILITY MODEL
In order to promote membrane separation equipment's separation efficiency, this application provides a multistage formula is concentrated membrane separation equipment section by section.
The application provides a multistage formula is concentrated membrane separation equipment section by section adopts following technical scheme:
a multi-section stepwise concentration membrane separation device comprises a raw material container, a feeding pump, a filter, a high-pressure pump, a membrane separation group and a fresh water intermediate tank which are sequentially connected through a pipeline, wherein a concentrated water intermediate tank is arranged between the membrane separation group and the high-pressure pump, and the concentrated water intermediate tank is connected with the membrane separation group through a pipeline; the membrane separation group comprises a plurality of groups of membrane separation units, each membrane separation unit comprises a circulating pump and a membrane shell, the circulating pumps are connected with the membrane shells through pipelines, and a plurality of membrane cores are arranged in the membrane shells; main feeding pipes are connected between the circulating pumps and the high-pressure pump, auxiliary feeding pipes with the number consistent with that of the circulating pumps extend from the main feeding pipes, the auxiliary feeding pipes are connected with the circulating pumps in a one-to-one correspondence manner, and circulating valves are installed on the auxiliary feeding pipes; a water outlet pipe is connected between the membrane shell fresh water outlet and the fresh water intermediate tank, a circulating pipe is connected between the membrane shell concentrated water outlet and an auxiliary feed pipe of the same membrane separation unit, and a circulating valve is installed on the circulating pipe; the concentrated water intermediate tank is connected with a main concentrated water pipe, the main concentrated water pipe is provided with a plurality of auxiliary concentrated water pipes which are respectively connected with a plurality of circulating pipes in an extending manner, and the main concentrated water pipe is provided with a drain valve.
According to the technical scheme, when the feeding pump is started, raw materials in the raw material container are filtered by the filter, and the high-pressure pump is started at the same time, so that the raw materials are pumped into the membrane separation group for separation, and concentrated water and fresh water are separated from the raw materials and are respectively discharged into the concentrated water intermediate tank and the fresh water intermediate tank, and the separation of the raw materials is realized; and the membrane separation group comprises membrane separation units, and in a single membrane separation unit, the circulating pump is started, so that the raw materials pass through a plurality of membrane cores in the membrane shell to realize the separation of the raw materials, and the separated concentrated water is circularly introduced into the membrane shell through the circulating pipe, the separation efficiency is increased, the defect of low separation efficiency of the single membrane shell is overcome through the multi-section coordination effect of the plurality of membrane separation units, and the separation efficiency of the membrane separation equipment on the raw materials is improved.
Further, the membrane separation equipment also comprises a cleaning assembly, wherein the cleaning assembly comprises a first cleaning pipe and a second cleaning pipe; one end of the first cleaning pipe is connected with high-pressure cleaning water from the cleaning filter, the other end of the first cleaning pipe is provided with a plurality of auxiliary cleaning pipes in an extending mode, the auxiliary cleaning pipes are correspondingly connected with the auxiliary feeding pipes respectively, and cleaning valves are arranged on the auxiliary cleaning pipes; one end of the water outlet pipe, which is far away from the fresh water intermediate tank, extends to form a plurality of flow dividing pipes which are respectively connected with a plurality of groups of membrane separation group membrane shells, and three-way valves are arranged on the flow dividing pipes; one end of the second cleaning pipe is connected with the cleaning water tank, and the other end of the second cleaning pipe is connected with the three-way valve.
Through above-mentioned technical scheme, when wasing membrane separation group, the purge valve is opened, and high-pressure cleaning water gets into vice feed pipe through first scavenge pipe and washing auxiliary pipe to make high-pressure cleaning water get into the membrane shell, then wash water rethread shunt tubes and three-way valve and flow back to the wash water tank by the second scavenge pipe, accomplish the washing cycle, realize the washing to the membrane core in the membrane shell, the cleaning efficiency is high.
Further, wash the subassembly and still include the third and wash the pipe, third wash pipe one end with the second scavenge pipe is connected, and the other end extends and is provided with many washing branch pipes, many washing branch pipes respectively with each group membrane separation group the circulating pipe is connected, and all installs dense water cleaning valve on the washing branch pipe.
Through the technical scheme, when the membrane separation group is cleaned, the concentrated water cleaning valve is opened, and cleaning water guided out by the membrane shell in the membrane separation group is guided to the second cleaning pipe through the cleaning branch pipe and the third cleaning pipe by the circulating pipe, so that a concentrated water outlet on the membrane shell is also cleaned.
In summary, the present application includes at least one of the following advantageous technical effects:
(1) the membrane separation group comprises membrane separation units, in a single membrane separation unit, a circulating pump is started to enable raw materials to pass through a plurality of membrane cores in a membrane shell to realize the separation of the raw materials, concentrated water obtained by separation is circularly led into the membrane shell through a circulating pipe, the separation efficiency is increased, the defect of low separation efficiency of a single membrane shell is overcome through the multi-section coordination action of a plurality of membrane separation units, and the separation efficiency of membrane separation equipment on the raw materials is improved;
(2) can realize the cleaning cycle, realize the washing to membrane shell inner membrane core, the cleaning efficiency is high.
Drawings
FIG. 1 is a schematic structural diagram of a multi-stage-by-stage concentration membrane separation device.
The reference numbers in the figures illustrate:
1. a raw material container; 2. a feed pump; 3. a filter; 4. a high pressure pump; 41. a main feed pipe; 42. a secondary feed pipe; 43. a circulation pipe; 44. a circulation valve; 5. a membrane separation unit; 51. a circulation pump; 52. a membrane shell; 521. a film core; 6. a fresh water intermediate tank; 61. a water outlet pipe; 62. a shunt tube; 63. a three-way valve; 7. a concentrated water intermediate tank; 71. a main concentrate pipe; 72. an auxiliary concentrated water pipe; 73. a drain valve; 81. a first cleaning pipe; 811. cleaning the auxiliary pipe; 812. cleaning the valve; 82. a second cleaning pipe; 821. a water return pipe; 83. a third wash pipe; 831. cleaning the branch pipe; 832. dense water clearance valve.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The membrane separation equipment for multi-stage and stage-by-stage concentration in the embodiment is used for an ECH wastewater membrane concentration process to separate organic matters and NaCl in wastewater.
The embodiment of the application discloses multistage formula is concentrated membrane separation equipment section by section, please refer to fig. 1, including raw materials container 1, feed pump 2, filter 3, high-pressure pump 4, membrane separation group, fresh water intermediate tank 6 that loop through the pipeline connection, still be equipped with dense water intermediate tank 7 between membrane separation group and high-pressure pump 4, dense water intermediate tank 7 passes through the pipeline connection with membrane separation group. Wherein, the feeding pump 2 can be selected from a Sulzer brand SNS series horizontal end suction pump, and the efficiency is not lower than 71%. The impeller adopts a semi-open structure, and can convey medium containing particles without causing blockage of the impeller and the pump body. The filter 3 may be selected to be of the WATECH brand and may have a 40 inch-flanged-5 umPP high flux cartridge size. The high-pressure pump 4 can be selected as a SulZER brand MBN series horizontal centrifugal pump with an API610 BB4 structure, and the efficiency is not lower than 73%.
When the feed pump 2 is started, raw materials in the raw material container 1 are filtered by the filter 3, and meanwhile, the high-pressure pump 4 is started, so that the raw materials are pumped into the membrane separation group for separation, and the raw materials are separated into concentrated water and fresh water and are respectively discharged into the concentrated water intermediate tank 7 and the fresh water intermediate tank 6, so that the separation of the raw materials is realized.
Referring to fig. 1, the membrane separation group includes a plurality of groups of membrane separation units 5, each membrane separation unit 5 includes a circulation pump 51 and a membrane shell 52, the circulation pump 51 is connected with the membrane shell 52 through a pipeline, and six groups of membrane cores 521 connected in parallel are installed in the membrane shell 52. The membrane core 521 may employ a U.S. dupont 8 inch 0.03 μmPVDF ultrafiltration membrane. The circulation pump 51 may be selected from Sulzer brand ZE/ZF series horizontal end suction pumps. Be connected with main feed pipe 41 between circulating pump 51 and the high-pressure pump 4, the extension is provided with the vice feed pipe 42 unanimous with circulating pump 51 figure on the main feed pipe 41, and vice feed pipe 42 is connected with circulating pump 51 one-to-one, and installs circulation valve 44 on the vice feed pipe 42. A water outlet pipe 61 is connected between the fresh water outlet of the membrane shell 52 and the fresh water intermediate tank 6, a circulating pipe 43 is connected between the concentrated water outlet of the membrane shell 52 and the auxiliary feeding pipe 42 of the same membrane separation unit 5, and circulating valves 44 are installed on the circulating pipes 43. The concentrated water intermediate tank 7 is connected with a main concentrated water pipe 71, a plurality of auxiliary concentrated water pipes 72 respectively connected with the circulating pipes 43 are extended and arranged on the main concentrated water pipe 71, and a drain valve 73 is arranged on the main concentrated water pipe 71.
When the wastewater separation operation is performed, the feed pump 2 is started to pump the wastewater material in the material container 1, then the high-pressure pump 4 is started to pump the wastewater material to each group of membrane separation units 5 of the membrane separation group through the main feed pipe 41 and each sub feed pipe 42, at the same time, the circulating pump 51 of each membrane separation unit 5 is started to filter the wastewater material through the membrane core 521 in each membrane shell 52 to separate fresh water and concentrated water, the separated fresh water is discharged into the fresh water intermediate tank 6 through the water outlet pipe 61, and the separated concentrated water flows back to the sub feed pipe 42 through the circulating pipe 43 to perform circulating filtration, and finally, the drain valve 73 is opened, the circulating valve 44 is closed, so that the concentrated water is discharged into the concentrated water intermediate tank 7 through each sub concentrated water pipe 72 and the main concentrated water pipe 71.
Referring to fig. 1, the membrane separation apparatus further includes a washing assembly including a first washing pipe 81, a second washing pipe 82, and a third washing pipe 83. The first cleaning pipe 81 has one end connected to high-pressure cleaning water from the cleaning filter 3 and the other end extended with a plurality of auxiliary cleaning pipes 811, the auxiliary cleaning pipes 811 are connected to the auxiliary supply pipes 42, and the auxiliary cleaning pipes 811 are provided with cleaning valves 812. One end of the water outlet pipe 61, which is far away from the fresh water intermediate tank 6, is provided with a plurality of branch pipes 62 which are respectively connected with the plurality of groups of membrane separation group membrane shells 52 in an extending way, and three-way valves 63 are respectively arranged on the branch pipes 62. One end of the second cleaning pipe 82 is connected to the cleaning water tank, and the other end thereof is extended with a plurality of return pipes 821 and connected to the three-way valves 63, respectively. One end of the third cleaning pipe 83 is connected with the second cleaning pipe 82, the other end is provided with a plurality of cleaning branch pipes 831 in an extending manner, the plurality of cleaning branch pipes 831 are respectively connected with the circulating pipes 43 of the membrane separation groups, and the cleaning branch pipes 831 are respectively provided with a concentrated water cleaning valve 832.
When the membrane separation group is cleaned, the cleaning valve 812 is opened, high-pressure cleaning water enters the auxiliary feed pipe 42 through the first cleaning pipe 81 and the cleaning auxiliary pipe 811, so that the high-pressure cleaning water enters the membrane shell 52, then the cleaning water led out of the fresh water port of the membrane separation group flows back to the cleaning water tank from the second cleaning pipe 82 through the flow dividing pipe 62 and the three-way valve 63, a cleaning cycle is completed, the cleaning of the membrane core 521 in the membrane shell 52 is realized, the cleaning efficiency is high, when the membrane separation group is cleaned, the concentrated water cleaning valve 832 is opened, the cleaning water led out of the concentrated water port of the membrane shell 52 in the membrane separation group is guided to the second cleaning pipe 82 through the cleaning branch pipe 831 and the third cleaning pipe 83 by the circulating pipe 43, and therefore a concentrated water outlet on the membrane shell 52 is also cleaned.
The implementation principle of the multi-section-by-section concentration membrane separation equipment in the embodiment of the application is as follows: when the feed pump 2 is started, raw materials in the raw material container 1 are filtered by the filter 3, and the high-pressure pump 4 is started at the same time, so that the raw materials are pumped into the membrane separation group for separation, and concentrated water and fresh water separated from the raw materials are respectively discharged into the concentrated water intermediate tank 7 and the fresh water intermediate tank 6, so that the separation of the raw materials is realized; and the membrane separation group comprises a plurality of membrane separation units 5, in a single membrane separation unit 5, the circulating pump 51 is started, so that the raw materials pass through a plurality of membrane cores 521 in the membrane shell 52 to realize the separation of the raw materials, the separated concentrated water is circularly introduced into the membrane shell 52 through the circulating pipe 43, the separation efficiency is increased, the defect of low separation efficiency of the single membrane shell 52 is overcome through the multi-section coordination action of the plurality of membrane separation units 5, and the separation efficiency of the membrane separation equipment on the raw materials is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (3)
1. A membrane separation equipment of multistage formula segmentation concentration which characterized in that: the device comprises a raw material container (1), a feeding pump (2), a filter (3), a high-pressure pump (4), a membrane separation group and a fresh water intermediate tank (6) which are sequentially connected through pipelines, wherein a concentrated water intermediate tank (7) is arranged between the membrane separation group and the high-pressure pump (4), and the concentrated water intermediate tank (7) is connected with the membrane separation group through a pipeline; the membrane separation group comprises a plurality of groups of membrane separation units (5), each membrane separation unit (5) comprises a circulating pump (51) and a membrane shell (52), the circulating pumps (51) are connected with the membrane shells (52) through pipelines, and a plurality of membrane cores (521) are installed in the membrane shells (52); main feeding pipes (41) are connected between the circulating pumps (51) and the high-pressure pump (4), auxiliary feeding pipes (42) with the number being consistent with that of the circulating pumps (51) extend from the main feeding pipes (41), the auxiliary feeding pipes (42) are connected with the circulating pumps (51) in a one-to-one correspondence manner, and circulating valves (44) are installed on the auxiliary feeding pipes (42); a water outlet pipe (61) is connected between the fresh water outlet of the membrane shell (52) and the fresh water intermediate tank (6), a circulating pipe (43) is connected between the concentrated water outlet of the membrane shell (52) and the auxiliary feeding pipe (42) of the same membrane separation unit (5), and a circulating valve (44) is installed on the circulating pipe (43); the concentrated water intermediate tank (7) is connected with a main concentrated water pipe (71), the main concentrated water pipe (71) is provided with a plurality of auxiliary concentrated water pipes (72) which are respectively connected with a plurality of circulating pipes (43) in an extending manner, and the main concentrated water pipe (71) is provided with a drain valve (73).
2. A membrane separation device for multi-stage-by-stage concentration according to claim 1, wherein: the membrane separation device further comprises a cleaning assembly comprising a first cleaning pipe (81) and a second cleaning pipe (82); one end of the first cleaning pipe (81) is connected with high-pressure cleaning water from the cleaning filter (3), the other end of the first cleaning pipe is provided with a plurality of auxiliary cleaning pipes (811) in an extending mode, the auxiliary cleaning pipes (811) are respectively and correspondingly connected with the auxiliary feeding pipes (42), and cleaning valves (812) are installed on the auxiliary cleaning pipes (811); one end of the water outlet pipe (61) far away from the fresh water intermediate tank (6) is provided with a plurality of shunt pipes (62) which are respectively connected with a plurality of groups of membrane separation group membrane shells (52) in an extending way, and three-way valves (63) are respectively arranged on the shunt pipes (62); one end of the second cleaning pipe (82) is connected with the cleaning water tank, and the other end of the second cleaning pipe is connected with the three-way valve (63).
3. A membrane separation device for multi-stage-by-stage concentration according to claim 2, wherein: the cleaning assembly further comprises a third cleaning pipe (83), one end of the third cleaning pipe (83) is connected with the second cleaning pipe (82), the other end of the third cleaning pipe extends to form a plurality of cleaning branch pipes (831), the cleaning branch pipes (831) are respectively connected with the circulating pipe (43) of each membrane separation group, and the cleaning branch pipes (831) are provided with concentrated water cleaning valves (832).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122134732.8U CN216149437U (en) | 2021-09-06 | 2021-09-06 | Multistage formula is concentrated membrane separation equipment section by section |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122134732.8U CN216149437U (en) | 2021-09-06 | 2021-09-06 | Multistage formula is concentrated membrane separation equipment section by section |
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| CN216149437U true CN216149437U (en) | 2022-04-01 |
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| CN202122134732.8U Active CN216149437U (en) | 2021-09-06 | 2021-09-06 | Multistage formula is concentrated membrane separation equipment section by section |
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