CN106334454B - A kind of efficient nanofiltration membrane cleaning device - Google Patents
A kind of efficient nanofiltration membrane cleaning device Download PDFInfo
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- CN106334454B CN106334454B CN201610772375.9A CN201610772375A CN106334454B CN 106334454 B CN106334454 B CN 106334454B CN 201610772375 A CN201610772375 A CN 201610772375A CN 106334454 B CN106334454 B CN 106334454B
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- pipeline
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- evaporator
- putamina
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/10—Testing of membranes or membrane apparatus; Detecting or repairing leaks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/162—Use of acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/164—Use of bases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/166—Use of enzymatic agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/168—Use of other chemical agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/40—Automatic control of cleaning processes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a kind of efficient nanofiltration membrane cleaning devices, it mainly include heat exchanger, main pump, mend pump, water pump, circulating tank, pickling tank, caustic treater, enzyme cleaning of evaporator, surfactant cleaning of evaporator, pure water tank, putamina, pipeline, electrically operated valve, the outlet of pure water tank passes through the first pipeline and pickling tank, caustic treater, enzyme cleaning of evaporator, the import of surfactant cleaning of evaporator connects, water pump is set on first pipeline, pure water tank, pickling tank, caustic treater, enzyme cleaning of evaporator, the outlet of surfactant cleaning of evaporator is in parallel by the second pipeline and successively by heat exchanger, main pump connects and is connected to the lower port of circulating tank, first upper port of circulating tank is connected by the first port of third pipeline and putamina, second upper port of circulating tank is connected by the second port of the 4th pipeline and putamina, the second pipe that the third port of putamina passes through the 5th pipeline and heat exchanger input end Road connection.The present invention has the characteristics that cleaning effect is good, cleaning efficiency is high, and the mass high-efficiency washing of film may be implemented.
Description
Technical field
The present invention relates to a kind of Membrane cleaning equipment, in particular to a kind of efficient nanofiltration membrane cleaning device.
Background technique
Nanofiltration has the advantages that service condition is comparatively gentle, the not variation of phase compared with evaporation, freeze-drying etc.,
Do not cause the variation of temperature, pH, so as to prevent denaturation, inactivation and the self-dissolving of large biological molecule, meanwhile, nanofiltration uses
Film device occupied area it is small, it is easy to operate, low in cost, be not required to increase any chemical reagents.Therefore, nanofiltration and its film
Equipment has been widely used in the separation, concentration, purifying of the industries such as food, medicine, water process.Nanofiltration is used for by our company
Blood treatment produces the animal protein of environment-friendly high-quality, extraordinary effect is obtained, however, a large amount of nanofiltration membranes in production process
Cleaning after use is but at the problem for restricting company's production: on the one hand, the dirt contained in the nanofiltration membrane after blood treatment
Object complicated component is contaminated, especially contains a large amount of biomass, the simple pickling of tradition, alkali cleaning can not be completely clean by Membrane cleaning；Separately
On the one hand, the processing equipment including CIP cleaning system cannot achieve the Membrane cleaning of mass, restrict the production effect of enterprise
Rate.
Summary of the invention
The efficient nanofiltration membrane cleaning device that the object of the present invention is to provide a kind of cleaning effects is good, cleaning efficiency is high.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of efficient nanofiltration membrane cleaning device mainly includes heat exchanger, main pump, mends pump, water pump, circulating tank, pickling tank, alkali
Cleaning of evaporator, enzyme cleaning of evaporator, surfactant cleaning of evaporator, pure water tank, putamina, pipeline, electrically operated valve, it is characterised in that: the pure water tank
Outlet is connect by the first pipeline with the import of the pickling tank, caustic treater, enzyme cleaning of evaporator, surfactant cleaning of evaporator, and described first
The water pump is set on pipeline, and the outlet of the pure water tank, pickling tank, caustic treater, enzyme cleaning of evaporator, surfactant cleaning of evaporator passes through the
Two pipelines are in parallel and successively the heat exchanger, main pump are connected and are connected to the lower port of circulating tank, and the first of the circulating tank
Upper port is connect by third pipeline with the first port of the putamina, and the second upper port of the circulating tank passes through the 4th pipeline
Connect with the second port of the putamina, the third port of the putamina pass through the 5th pipeline and the heat exchanger input end the
Two piping connections.
Preferably, a kind of efficient nanofiltration membrane cleaning device, it is characterised in that the main pump of second pipeline with
Between circulating tank, benefit pump is arranged in parallel by the 6th pipeline.
It after Membrane cleaning, is pumped by the benefit being arranged in parallel, the detection of permeable amount can be carried out to the film after cleaning.
Preferably, a kind of efficient nanofiltration membrane cleaning device, it is characterised in that the quantity > of the putamina 1,
And it is parallel with one another.
Each putamina can install a film and be cleaned, and the putamina being arranged in parallel can simultaneously carry out multiple films clear
It washes, to meet the needs of mass Membrane cleaning.
Preferably, a kind of efficient nanofiltration membrane cleaning device, it is characterised in that the pickling tank, caustic treater, enzyme
Cleaning of evaporator, surfactant cleaning of evaporator are provided with agitating device.
By the setting of agitating device, can quickly acid, alkali, enzyme, surfactant be stirred evenly in cleaning of evaporator and to be formed
Washing lotion, while the pH of washing lotion and temperature quickly and evenly can be adjusted to required value.
Preferably, a kind of efficient nanofiltration membrane cleaning device, it is characterised in that the circulating tank, pickling tank, alkali
Cleaning of evaporator, enzyme cleaning of evaporator, surfactant cleaning of evaporator, pure water tank are provided with liquidometer and temp probe.
The liquid level that pot liquid is detected by liquidometer detects the temperature of pot liquid by temp probe, and will be corresponding
Signal feedback to Electric Appliance Cabinet, to accurate measurements and control the liquid level and temperature parameter in cleaning process.
Preferably, a kind of efficient nanofiltration membrane cleaning device, it is characterised in that the pickling tank, caustic treater, enzyme
Cleaning of evaporator, surfactant cleaning of evaporator tank skin be provided with heating interlayer.
Washing lotion needs to control reasonable temperature, by the setting of heating layer, can quickly and evenly heat washing lotion in tank
To suitable temperature.
Preferably, a kind of efficient nanofiltration membrane cleaning device, it is characterised in that the circulating tank, pickling tank, alkali
Cleaning of evaporator, enzyme cleaning of evaporator, surfactant cleaning of evaporator are provided with pH meter.
The pH of pot liquid is detected by pH meter, and by signal feedback to Electric Appliance Cabinet, thus accurate measurements and control cleaning
The pH of liquid in the process.
Preferably, a kind of efficient nanofiltration membrane cleaning device, it is characterised in that one end of the third pipeline and
One end of 4th pipeline is goed deep into the circulating tank tank, is respectively the 10-25% of tank inner height at a distance from the circulation pot bottom
And 45-60%.
By the setting, film can both be cleaned by third pipeline, film can also be carried out by the 4th pipeline
Cleaning, to keep the cleaning effect of film more preferable.
Preferably, a kind of efficient nanofiltration membrane cleaning device, it is characterised in that the circulating tank of the third pipeline
Suspended body flowmeter, electric pressure-regulating valve, pressure gauge are set gradually between putamina.
By the setting of the suspended body flowmeter, pressure gauge, the flow and pressure of liquid when monitoring uses third pipeline-cleaning
Power, and signal is fed back to Electric Appliance Cabinet；By the setting of the electric pressure-regulating valve, the flow of liquid when controlling third pipeline-cleaning
And pressure.
Preferably, a kind of efficient nanofiltration membrane cleaning device, it is characterised in that the circulating tank of the 4th pipeline
Suspended body flowmeter is respectively set between each putamina in parallel.
It is arranged by the suspended body flowmeter, the flow of liquid when monitoring uses four pipeline-cleanings, and signal is fed back
To Electric Appliance Cabinet.
In conclusion the invention has the following advantages:
A kind of efficient nanofiltration membrane cleaning device of the invention have pickling, alkali cleaning, enzyme is washed, surfactant washes four kinds of cleanings
Mode, clean film when can choose one or more cleaning ways, keep the cleaning effect of film more preferable, especially enzyme wash mode to
It is especially good in the biomass removal effect on the film of blood treatment.
A kind of efficient nanofiltration membrane cleaning device of the invention has two kinds of third pipeline, the 4th pipeline wash cycles approach,
It can choose one or two kinds of cleaning approach when cleaning, keep the cleaning effect of film more preferable.
A kind of efficient nanofiltration membrane cleaning device of the invention can carry out the film after washing down permeable after cleaning
Amount detection, it is ensured that film has cleaned up.
A kind of efficient nanofiltration membrane cleaning device of the invention carries out automation cleaning by Electric Appliance Cabinet, and once can be same
When mass cleaning is carried out to multiple films, cleaning efficiency is high.
Detailed description of the invention
Fig. 1 is the schematic diagram of the efficient nanofiltration membrane cleaning device of the specific embodiment of the invention；
In figure, 1- Electric Appliance Cabinet；2- heat exchanger；3- main pump；4- mends pump；5- water pump；6- circulating tank；7- pickling tank；8- alkali cleaning
Tank；9- enzyme cleaning of evaporator；10- surfactant cleaning of evaporator；11- pure water tank；12- putamina；13- pipeline；14- electrically operated valve；15- stirring dress
It sets；16- temp probe；17- heating interlayer；18-pH meter；19- suspended body flowmeter；20- electric pressure-regulating valve；21- pressure gauge；61-
First upper port；The second upper port of 62-；121- first port；122- second port；123- third port；The first pipeline of 131-；
The second pipeline of 132-；133- third pipeline；The 4th pipeline of 134-；The 5th pipeline of 135-；The 6th pipeline of 136-.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
As shown in Figure 1, a kind of efficient nanofiltration membrane cleaning device, mainly include Electric Appliance Cabinet 1, heat exchanger 2, main pump 3, mend pump 4,
Water pump 5, circulating tank 6, pickling tank 7, caustic treater 8, enzyme cleaning of evaporator 9, surfactant cleaning of evaporator 10, pure water tank 11, putamina 12, pipeline
13, electrically operated valve 14, the pipeline include the first pipeline 131 interconnected, the second pipeline 132, third pipeline the 133, the 4th
Pipeline 134, the 5th pipeline 135 and the 6th pipeline 136；The outlet of the pure water tank 11 passes through the first pipeline 131 and the pickling
The import of tank 7, caustic treater 8, enzyme cleaning of evaporator 9, surfactant cleaning of evaporator 10 connects, and the water pump is arranged on first pipeline 131
5, the outlet of the pure water tank 11, pickling tank 7, caustic treater 8, enzyme cleaning of evaporator 9, surfactant cleaning of evaporator 10 passes through the second pipeline 132
It is in parallel and successively the heat exchanger 2, main pump 3 are connected and are connected to the lower port of the circulating tank 6, the of the circulating tank 6
One upper port 61 is connect by third pipeline 133 with the first port 121 of the putamina 12, the second upper end of the circulating tank 6
Mouth 62 is connect by the 4th pipeline 134 with the second port 122 of the putamina 12, and the third port 123 of the putamina 12 passes through
5th pipeline 135 is connect with the second pipeline 132 of 2 input end of heat exchanger, and the Electric Appliance Cabinet 1 controls the work of electrical equipment
Make.Between the main pump 3 and circulating tank 6 of second pipeline 132, benefit pump 4 is arranged in parallel by the 6th pipeline 136.The putamina
12 quantity > 1, and it is parallel with one another.The pickling tank 7, caustic treater 8, enzyme cleaning of evaporator 9, surfactant cleaning of evaporator 10 are provided with and stir
Mix device 15.The circulating tank 6, pickling tank 7, caustic treater 8, enzyme cleaning of evaporator 9, surfactant cleaning of evaporator 10 are provided with liquidometer and temperature
Degree probe 16, the pure water tank 11 is provided with liquidometer.The pickling tank 7, caustic treater 8, enzyme cleaning of evaporator 9, surfactant cleaning of evaporator
10 tank skin is provided with heating interlayer 17.The circulating tank 6, pickling tank 7, caustic treater 8, enzyme cleaning of evaporator 9, surfactant cleaning of evaporator 10
It is provided with pH meter 18.One end of the third pipeline 133 and one end of the 4th pipeline 134 are goed deep into 6 tank of circulating tank, respectively
With the 10-25% and 45-60% at a distance from 6 bottom of circulating tank being tank inner height.The circulating tank 6 of the third pipeline 133 with
Suspended body flowmeter 19, electric pressure-regulating valve 20, pressure gauge 21 are set gradually between putamina 12.The circulating tank 6 of 4th pipeline 134
Suspended body flowmeter 19 is respectively set between each putamina 12 in parallel.
Course of work description:
The configuration of washing lotion: starting washing lotion configuration after the technical parameter of washing lotion is set by Electric Appliance Cabinet 1, and water pump 5 is by pure water tank
Water in 11 squeezes into pickling tank 7, caustic treater 8, enzyme cleaning of evaporator 9, surfactant cleaning of evaporator 10, and heating interlayer 17 adds washing lotion
Heat, agitating device 15 are stirred washing lotion, and the washing lotion pH of configuration, temperature is made quickly and evenly to reach setting value.
Washing lotion washes down: the multiple films cleaned will be needed to be installed in putamina, cleaning way and cleaning is arranged by Electric Appliance Cabinet 1
Start washing lotion cleaning after approach, washing lotion forms circulation in heat exchanger 2- main pump 3- circulating tank 6- putamina 12- heat exchanger 2 and carries out to film
Cleaning.Guarantee that the temperature of cleaning process washing lotion keeps stablizing by heat exchanger 2, passes through pH meter 18, temp probe 16, float-type
The parameter in cleaning process is monitored and controlled in meter 19, electric pressure-regulating valve 20, pressure gauge 21, by the 6th pipeline 136 after having cleaned
By the liquid discharge in device.
Pure water cleaning: after washing lotion has been cleaned, pure water cleaning is started by Electric Appliance Cabinet 1, the pure water that pure water tank 11 is beaten exists
Heat exchanger 2- main pump 3- circulating tank 6- putamina 12- heat exchanger 2 forms circulation and cleans to film.Guarantee to clean by heat exchanger 2
The temperature of process washing lotion keeps stablizing, and passes through pH meter 18, temp probe 16, suspended body flowmeter 19, electric pressure-regulating valve 20, pressure gauge
21 are monitored and controlled the parameter in cleaning process, will stop pure water cleaning after Membrane cleaning to neutrality.
Permeable amount detection: after pure water cleans, permeable amount detection is started by Electric Appliance Cabinet 1, mends pump 4 and the 6th pipeline
136 is open-minded, forms the permeable amount detection circulation that heat exchanger 2- main pump 3- mends pump 4- circulating tank 6- putamina 12- heat exchanger 2.
In conclusion a kind of efficient nanofiltration membrane cleaning device of the invention is washed with pickling, alkali cleaning, enzyme, surfactant
A variety of cleaning ways are washed, there is 134 two kinds of third pipeline 133, the 4th pipeline wash cycles approach, can choose one when cleaning film
Kind or a variety of cleaning ways and one or two kinds of cleaning approach, keep the cleaning effect of film more preferable, especially enzyme wash mode to
It is especially good in the biomass removal effect on the film of blood treatment.After cleaning, permeable amount can be carried out to the film after washing down
Detection, it is ensured that film has cleaned up.The present invention carries out automation cleaning by Electric Appliance Cabinet, and once can be simultaneously to multiple films
Mass cleaning is carried out, cleaning efficiency is high.
Claims (3)
1. a kind of efficient nanofiltration membrane cleaning device, it is characterised in that: including heat exchanger (2), main pump (3), mend pump (4), water pump
(5), circulating tank (6), pickling tank (7), caustic treater (8), enzyme cleaning of evaporator (9), surfactant cleaning of evaporator (10), pure water tank (11), film
Shell (12), pipeline (13), electrically operated valve (14), the pipeline include the first pipeline (131) interconnected, the second pipeline
(132), third pipeline (133), the 4th pipeline (134), the 5th pipeline (135) and the 6th pipeline (136)；The pure water tank (11)
Outlet pass through the first pipeline (131) and the pickling tank (7), caustic treater (8), enzyme cleaning of evaporator (9), surfactant cleaning of evaporator (10)
Import connection, be arranged the water pump (5) on first pipeline (131), the pure water tank (11), pickling tank (7), caustic treater
(8), the outlet of enzyme cleaning of evaporator (9), surfactant cleaning of evaporator (10) is by the second pipeline (132) parallel connection and successively by the heat exchanger
(2), main pump (3) connects and is connected to the lower port of the circulating tank (6), and the first upper port (61) of the circulating tank (6) is logical
It crosses third pipeline (133) to connect with the first port (121) of the putamina (12), the second upper port of the circulating tank (6)
(62) it is connect by the 4th pipeline (134) with the second port (122) of the putamina (12), the third port of the putamina (12)
(123) it is connect by the 5th pipeline (135) with second pipeline (132) of the heat exchanger (2) input end；
Between the main pump (3) and circulating tank (6) of second pipeline (132), benefit pump is arranged in parallel by the 6th pipeline (136)
(4)；
Quantity > 1 of the putamina (12), and it is parallel with one another；
The pickling tank (7), caustic treater (8), enzyme cleaning of evaporator (9), surfactant cleaning of evaporator (10) are provided with agitating device (15)；
The circulating tank (6), pickling tank (7), caustic treater (8), enzyme cleaning of evaporator (9), surfactant cleaning of evaporator (10) are provided with liquid level
Meter and temp probe (16), the pure water tank (11) are provided with liquidometer；
The pickling tank (7), caustic treater (8), enzyme cleaning of evaporator (9), surfactant cleaning of evaporator (10) tank skin be provided with heating interlayer
(17)；
The circulating tank (6), pickling tank (7), caustic treater (8), enzyme cleaning of evaporator (9), surfactant cleaning of evaporator (10) are provided with pH meter
(18)；
One end of the third pipeline (133) and one end of the 4th pipeline (134) are goed deep into the circulating tank (6) tank, respectively with
The distance of circulating tank (6) bottom is the 10-25% and 45-60% of tank inner height.
2. a kind of efficient nanofiltration membrane cleaning device according to claim 1, it is characterised in that the third pipeline (133)
Suspended body flowmeter (19), electric pressure-regulating valve (20), pressure gauge (21) are set gradually between circulating tank (6) and putamina (12).
3. a kind of efficient nanofiltration membrane cleaning device according to claim 1, it is characterised in that the 4th pipeline (134)
Suspended body flowmeter (19) are respectively set between circulating tank (6) and each putamina (12) in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610772375.9A CN106334454B (en) | 2016-08-31 | 2016-08-31 | A kind of efficient nanofiltration membrane cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610772375.9A CN106334454B (en) | 2016-08-31 | 2016-08-31 | A kind of efficient nanofiltration membrane cleaning device |
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| Publication Number | Publication Date |
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| CN106334454A CN106334454A (en) | 2017-01-18 |
| CN106334454B true CN106334454B (en) | 2019-07-05 |
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ID=57822830
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19530190A1 (en) * | 1995-08-17 | 1997-02-20 | Cwd Reinstwassersysteme Christ | Reverse osmosis filter membrane and module cleaned by reverse flow of hot water |
| CN202315716U (en) * | 2011-09-17 | 2012-07-11 | 杭州天创环境科技股份有限公司 | Cleaning device for membrane system |
| CN103331102A (en) * | 2013-06-21 | 2013-10-02 | 山西太钢不锈钢股份有限公司 | Offline cleaning and evaluating device of reverse osmosis membrane element and application method of device |
| CN203803389U (en) * | 2014-01-09 | 2014-09-03 | 陕西安得科技实业有限公司 | Integrated device for off-line cleaning and detecting of 4-inch reverse osmosis membrane elements |
| CN206027464U (en) * | 2016-08-31 | 2017-03-22 | 浙江索纳克生物科技有限公司 | Filter membrane cleaning device is received to high efficiency |
-
2016
- 2016-08-31 CN CN201610772375.9A patent/CN106334454B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19530190A1 (en) * | 1995-08-17 | 1997-02-20 | Cwd Reinstwassersysteme Christ | Reverse osmosis filter membrane and module cleaned by reverse flow of hot water |
| CN202315716U (en) * | 2011-09-17 | 2012-07-11 | 杭州天创环境科技股份有限公司 | Cleaning device for membrane system |
| CN103331102A (en) * | 2013-06-21 | 2013-10-02 | 山西太钢不锈钢股份有限公司 | Offline cleaning and evaluating device of reverse osmosis membrane element and application method of device |
| CN203803389U (en) * | 2014-01-09 | 2014-09-03 | 陕西安得科技实业有限公司 | Integrated device for off-line cleaning and detecting of 4-inch reverse osmosis membrane elements |
| CN206027464U (en) * | 2016-08-31 | 2017-03-22 | 浙江索纳克生物科技有限公司 | Filter membrane cleaning device is received to high efficiency |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106334454A (en) | 2017-01-18 |
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Denomination of invention: A high efficiency nanofiltration membrane cleaning device Effective date of registration: 20211015 Granted publication date: 20190705 Pledgee: Anji green sub branch of Hangzhou United Rural Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG SONAC BIOLOGICAL SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2021330001917 |
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