CN214862548U - High-pressure nanofiltration membrane system for purifying and concentrating iso-VC stock solution - Google Patents
High-pressure nanofiltration membrane system for purifying and concentrating iso-VC stock solution Download PDFInfo
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- CN214862548U CN214862548U CN202120696751.7U CN202120696751U CN214862548U CN 214862548 U CN214862548 U CN 214862548U CN 202120696751 U CN202120696751 U CN 202120696751U CN 214862548 U CN214862548 U CN 214862548U
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Abstract
A high-pressure nanofiltration membrane system for purifying and concentrating an iso-VC stock solution is characterized in that: comprises a stock solution tank, a high-pressure delivery pump, a separation membrane group, a backwashing tank, a backwashing pump and a filter; the stock solution tank is connected with a high-pressure delivery pump by using a pipeline I; the output end of the high-pressure conveying pump is connected with the filter; the filter is connected with the separation membrane group by a pipeline II; the separation membrane group is provided with a dialysate outlet and is connected with the backwashing tank by a pipeline III; the separation membrane group is also provided with a concentrated solution outlet, and concentrated solution is conveyed into a stock solution tank by using a concentrated solution collecting pipeline; the backwashing pump is connected with the backwashing tank by using a pipeline IV, and the output end of the backwashing pump is connected with the pipeline III by using a pipeline V; the utility model discloses an automatic operation of concentrated different VC stoste of purification, the operating efficiency is high, and the purification rate is high, and purification purity is good, and the energy consumption is low.
Description
Technical Field
The utility model relates to a high pressure nanofiltration membrane system of concentrated different VC stoste of purification.
Background
At present, the iso-VC is generally purified by centrifugation or plate-and-frame filtration, and the purification method has high energy consumption, low efficiency and poor purification purity.
Disclosure of Invention
An object of the utility model is to provide a high pressure nanofiltration membrane system of different VC stoste of purification that the energy consumption is low, purification purity is good, efficient purification.
The technical scheme of the invention is as follows: a high-pressure nanofiltration membrane system for purifying and concentrating an iso-VC stock solution is characterized in that: comprises a stock solution tank, a high-pressure delivery pump, a separation membrane group, a backwashing tank, a backwashing pump and a filter; the stock solution tank is connected with a high-pressure delivery pump by using a pipeline I; the output end of the high-pressure conveying pump is connected with the filter; the filter is connected with the separation membrane group by a pipeline II; the separation membrane group is provided with a dialysate outlet and is connected with the backwashing tank by a pipeline III; the separation membrane group is also provided with a concentrated solution outlet, and concentrated solution is conveyed into a stock solution tank by using a concentrated solution collecting pipeline; the backwashing pump is connected with the backwashing tank by a pipeline IV, and the output end of the backwashing pump is connected with the pipeline III by a pipeline V.
Furthermore, automatic control valves are arranged on the pipeline II, the pipeline III, the concentrated solution collecting pipeline and the pipeline V and are respectively an automatic control valve I, an automatic control valve II, an automatic control valve III and an automatic control valve IV; and pressure gauges are arranged on the pipeline II, the pipeline III and the concentrated solution collecting pipeline.
Further, a liquid level sensor I is arranged in the stock solution tank.
Further, the separation membrane group adopts a nanofiltration membrane component with the molecular weight of 200.
Further, the system is also provided with a control host.
Further, a liquid level sensor II is arranged in the backwashing tank.
Furthermore, a pure water injection port is also arranged on the stock solution tank and is connected with an external pure water conveying water pump by a pipeline VI.
Further, a solution injection port is arranged on the backwashing tank and is connected with an external solution delivery pump by using a pipeline VII.
Further, the high-pressure nanofiltration membrane system is also provided with two liquid drainage pipelines which are respectively a liquid drainage pipeline I and a liquid drainage pipeline II; the liquid drainage pipeline I is connected with the stock solution tank, and an automatic control valve V is arranged on the liquid drainage pipeline I; and the liquid discharge pipeline II is connected with the backwashing tank, and an automatic control valve VI is arranged on the liquid discharge pipeline II.
Further, the separation membrane group is a high-pressure nanofiltration membrane group.
The utility model has the advantages that: (1) the utility model realizes the operation of automatically purifying and concentrating the different VC stock solution, and has high operation efficiency, high purification rate, good purification purity and low energy consumption; (2) the utility model is provided with the backwashing pump, after the purification and concentration operation of the system is finished, the backwashing pump is started to directly carry out backwashing on the separation membrane group, the operation is very convenient, and the cleaning effect is good; (3) the utility model arranges the filter at the front end of the separation membrane group, which effectively intercepts large granular matters, effectively protects the separation membrane group and prolongs the service life of the separation membrane group; (4) the utility model discloses set up the backwash tank, the dialysate of backwash tank splendid attire process separation module dialysis, after the concentrated operation of system's purification, the washing liquid that adds certain proportion NaOH, HNO3, NaCIO mixed solution and can make the separation membrane group in toward the backwash tank supplies backwash pump clearance module to use, has realized recycling of dialysate waste liquid, has practiced thrift resource (5) the utility model discloses a membrane group is received with high pressure delivery pump to high pressure, realizes high flux purification, the concentration of different VC stoste, has improved purification and concentrated efficiency.
Drawings
Fig. 1 is a schematic block diagram of an embodiment of the present invention.
Detailed Description
As shown in the figure: a high-pressure nanofiltration membrane system for purifying and concentrating an iso-VC stock solution is characterized in that: comprises a stock solution tank 1, a high-pressure delivery pump 2, a separation membrane group 3, a backwashing tank 4, a backwashing pump 5 and a filter 6; the stock solution tank 1 is connected with the high-pressure delivery pump 2 by a pipeline I7; the output end of the high-pressure delivery pump 2 is connected with the filter 6; the filter 6 is connected with the separation membrane group 3 by a pipeline II 8; the separation membrane group 3 is provided with a dialysate outlet 31 and is connected with the backwashing tank 4 by a pipeline III 9; the separation membrane group 3 is also provided with a concentrated solution outlet 32, and concentrated solution is conveyed into the stock solution tank 1 by using a concentrated solution collecting pipeline 10; the backwashing pump 5 is connected with the backwashing tank 4 by a pipeline IV 11, and the output end of the backwashing pump 5 is connected with the pipeline III 9 by a pipeline V12.
Automatic control valves are arranged on the pipeline II 8, the pipeline III 9, the concentrated solution collecting pipeline 10 and the pipeline V12 and are respectively an automatic control valve I13, an automatic control valve II 14, an automatic control valve III 15 and an automatic control valve IV 16; and pressure gauges are arranged on the pipeline II 8, the pipeline III 9 and the concentrated solution collecting pipeline 10.
A liquid level sensor I (not shown in the figure) is arranged in the raw liquid tank 1.
The separation membrane group 3 adopts a nanofiltration membrane component with the molecular weight of 200.
The system is also provided with a control host.
And a liquid level sensor II (not shown in the figure) is arranged in the backwashing tank 4.
And a pure water injection port is also arranged on the stock solution tank 1 and is connected with an external pure water conveying water pump by using a pipeline VI 17.
The backwashing tank 4 is provided with a solution injection port and is connected with an external solution delivery pump by using a pipeline VII 18.
The high-pressure nanofiltration membrane system is also provided with two liquid drainage pipelines which are respectively a liquid drainage pipeline I19 and a liquid drainage pipeline II 20; the liquid drainage pipeline I19 is connected with the raw liquid tank 1, and an automatic control valve V21 is arranged on the liquid drainage pipeline I; the liquid discharge pipeline II 20 is connected with the backwashing tank 4, and an automatic control valve VI 22 is arranged on the liquid discharge pipeline II.
The separation membrane group 3 is a high-pressure nanofiltration membrane group.
The utility model discloses a theory of operation: loading a copper-based-D-gluconic acid solution (hereinafter referred to as stock solution) into a stock solution tank, pumping the stock solution in the stock solution tank into a filter through a high-pressure delivery pump, intercepting large-particle substances by the filter, then feeding the filtered stock solution into a separation membrane group, wherein after the stock solution enters the separation membrane group, substances smaller than the membrane separation pore size, such as sulfate ions, chloride ions, water and the like penetrate through the surface of a membrane under the action of pressure to be separated to form dialysate, flowing out from a dialysate outlet and flowing into a backwashing tank, and the substances larger than the membrane separation pore size in the stock solution are intercepted by a membrane and cannot penetrate through the surface of the membrane to form a concentrate, flowing out from a concentrate outlet of the separation membrane group, returning to a stock solution storage tank through a concentrate pipeline to perform next cyclic separation and concentration of the copper-based-D-gluconic acid, and performing cyclic separation and concentration operation for a period of time, the volume of the stock solution in the stock solution tank is reduced, when the volume of the stock solution in the whole stock solution tank is reduced by one time, a liquid level sensor I in the stock solution tank detects a signal and sends the signal to a control host, the control host controls an external pure water conveying pump to convey pure water into the stock solution tank, then the circulating separation and concentration operation of copper-based-D-gluconic acid is continued, after a period of circulating separation and concentration operation, the residual quantity of impurities and the like in the concentrated stock solution in the stock solution tank reaches the standard, the membrane separation and concentration process is stopped, then a solution conveying pump is started, a certain proportion of NaOH, HNO3 and NaCIO mixed solution is conveyed into a backwashing tank, the mixed solution and dialysis solution are mixed to form alkaline cleaning solution, then the backwashing pump is started, the cleaning solution in the backwashing tank is pumped to perform reverse direction flushing operation on a separation membrane group, and the whole membrane separation process is completed.
In the process of membrane separation and concentration, dialysate continuously flows into the backwashing tank, the liquid level sensor II in the backwashing tank detects the volume of the liquid in the backwashing tank in real time, and when the volume of the liquid exceeds a limit value, the control host controls to open the automatic control valve VI on the liquid discharge pipeline II to discharge redundant dialysate in the backwashing tank so as to achieve the balance of the whole filtering system.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. A high-pressure nanofiltration membrane system for purifying and concentrating an iso-VC stock solution is characterized in that: comprises a stock solution tank, a high-pressure delivery pump, a separation membrane group, a backwashing tank, a backwashing pump and a filter; the stock solution tank is connected with a high-pressure delivery pump by using a pipeline I; the output end of the high-pressure conveying pump is connected with the filter; the filter is connected with the separation membrane group by a pipeline II; the separation membrane group is provided with a dialysate outlet and is connected with the backwashing tank by a pipeline III; the separation membrane group is also provided with a concentrated solution outlet, and concentrated solution is conveyed into a stock solution tank by using a concentrated solution collecting pipeline; the backwashing pump is connected with the backwashing tank by a pipeline IV, and the output end of the backwashing pump is connected with the pipeline III by a pipeline V.
2. The high-pressure nanofiltration membrane system for purifying concentrated iso-VC stock solution according to claim 1, wherein: automatic control valves are arranged on the pipeline II, the pipeline III, the concentrated solution collecting pipeline and the pipeline V respectively and are an automatic control valve I, an automatic control valve II, an automatic control valve III and an automatic control valve IV; and pressure gauges are arranged on the pipeline II, the pipeline III and the concentrated solution collecting pipeline.
3. The high-pressure nanofiltration membrane system for purifying concentrated iso-VC stock solution according to claim 1, wherein: and a liquid level sensor I is arranged in the stock solution tank.
4. The high-pressure nanofiltration membrane system for purifying concentrated iso-VC stock solution according to claim 1, wherein: the separation membrane group adopts a nanofiltration membrane component with the molecular weight of 200.
5. The high-pressure nanofiltration membrane system for purifying concentrated iso-VC stock solution according to claim 1, wherein: the system is also provided with a control host.
6. The high-pressure nanofiltration membrane system for purifying concentrated iso-VC stock solution according to claim 1, wherein: and a liquid level sensor II is arranged in the backwashing tank.
7. The high-pressure nanofiltration membrane system for purifying concentrated iso-VC stock solution according to claim 1, wherein: and a pure water injection port is also formed in the stock solution tank and is connected with an external pure water conveying water pump by using a pipeline VI.
8. The high-pressure nanofiltration membrane system for purifying concentrated iso-VC stock solution according to claim 1, wherein: and a solution injection port is arranged on the backwashing tank and is connected with an external solution delivery pump by using a pipeline VII.
9. The high-pressure nanofiltration membrane system for purifying concentrated iso-VC stock solution according to claim 1, wherein: the high-pressure nanofiltration membrane system is also provided with two liquid drainage pipelines which are respectively a liquid drainage pipeline I and a liquid drainage pipeline II; the liquid drainage pipeline I is connected with the stock solution tank, and an automatic control valve V is arranged on the liquid drainage pipeline I; and the liquid discharge pipeline II is connected with the backwashing tank, and an automatic control valve VI is arranged on the liquid discharge pipeline II.
10. The high-pressure nanofiltration membrane system for purifying concentrated iso-VC stock solution according to claim 1, wherein: the separation membrane group is a high-pressure nanofiltration membrane group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120696751.7U CN214862548U (en) | 2021-04-07 | 2021-04-07 | High-pressure nanofiltration membrane system for purifying and concentrating iso-VC stock solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120696751.7U CN214862548U (en) | 2021-04-07 | 2021-04-07 | High-pressure nanofiltration membrane system for purifying and concentrating iso-VC stock solution |
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| Publication Number | Publication Date |
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| CN214862548U true CN214862548U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120696751.7U Active CN214862548U (en) | 2021-04-07 | 2021-04-07 | High-pressure nanofiltration membrane system for purifying and concentrating iso-VC stock solution |
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| CN (1) | CN214862548U (en) |
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2021
- 2021-04-07 CN CN202120696751.7U patent/CN214862548U/en active Active
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