CN214693532U - Micro-nano bubble generating device - Google Patents
Micro-nano bubble generating device Download PDFInfo
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- CN214693532U CN214693532U CN202120838174.0U CN202120838174U CN214693532U CN 214693532 U CN214693532 U CN 214693532U CN 202120838174 U CN202120838174 U CN 202120838174U CN 214693532 U CN214693532 U CN 214693532U
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- pipe
- inner tube
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- 239000002101 nanobubble Substances 0.000 title claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 82
- 239000012528 membrane Substances 0.000 claims abstract description 35
- 210000004492 nuclear pore Anatomy 0.000 claims abstract description 29
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 239000011148 porous material Substances 0.000 claims description 9
- 238000007731 hot pressing Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005201 scrubbing Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011978 dissolution method Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model relates to a micro-nano bubble generating device, including micro-nano bubble water preparation portion, micro-nano bubble water preparation portion include outer tube and inner tube, outer tube and inner tube be the hollow tube, the inner tube be located the cavity of outer tube, the maximum external diameter of inner tube be less than the minimum internal diameter of outer tube, the inner tube be nuclear pore membrane pipe, be equipped with the air inlet at the one end and/or both ends of inner tube, seted up high-pressure water inlet and delivery port on the outer tube, high-pressure water inlet department is equipped with the high-pressure subassembly of intaking. On using the micro-nano bubble generating device with nuclear track membrane pipe, the gas outside the outflow pipe forms micro-nano bubble to separate from the pipe wall, the bubble is taken away to the shear flow that the outside of tubes high-speed flowed through, forms the gas-liquid mixture flow, and the diameter of the micro-nano bubble of production is little, and the quantity of the micro-nano bubble in the unit volume is many, and oxygen utilization efficiency is high, has reduced the energy consumption, has improved scrubbing efficiency.
Description
Technical Field
The utility model relates to a water treatment technical field, concretely relates to micro-nano bubble generating device.
Background
Generally, bubbles having a diameter of 10 to several tens of micrometers are called "micro bubbles", bubbles having a diameter of several hundreds of nanometers or less are called "nano bubbles", and bubbles having a diameter between the two are called "micro-nano bubbles". Compared with the traditional high-pressure dissolving and pressure reducing foaming mode, the micro-nano bubble generating device has the advantages of small bubble size, large surface area, high adsorption efficiency, slow ascending speed in water and long retention time in water, and is widely applied to the fields of water treatment and aquaculture.
The existing method for preparing micro-nano bubbles mainly comprises the following steps: ultrasonic method, pressurized dissolution method, electrolytic method, gas-liquid rotary cutting method, etc. However, the diameters and the number of the micro-nano bubbles prepared by the methods are limited to a certain extent, the oxygen utilization rate is relatively low, and the energy consumption is high. In this respect, the existing micro-nano generating device can not meet the market demand.
SUMMERY OF THE UTILITY MODEL
The utility model provides a micro-nano bubble generating device has effectively solved the produced bubble diameter of current micro-nano bubble generating device big, in the unit volume bubble small in quantity, oxygen utilization ratio low, technical problem such as energy consumption height.
The utility model provides a micro-nano bubble generating device, including micro-nano bubble water preparation portion, micro-nano bubble water preparation portion include outer tube and inner tube, outer tube and inner tube be the hollow tube, the inner tube be located the cavity of outer tube, the maximum external diameter of inner tube be less than the minimum internal diameter of outer tube, the inner tube be nuclear pore membrane pipe, be equipped with the air inlet at the one end and/or both ends of inner tube, seted up high-pressure water inlet and delivery port on the outer tube, high-pressure water inlet department is equipped with the high-pressure subassembly of intaking.
Preferably, the outer wall of the inner pipe is not in contact with the inner wall of the outer pipe, namely, the inner pipe is suspended in the cavity of the outer pipe.
Preferably, the inner pipe and the outer pipe are coaxially arranged, and the cross sections of the inner pipe and the outer pipe are circular.
Preferably, the number of the inner pipes is more than two.
Preferably, a gap is formed between the inner pipes, and a gap is formed between the outer walls of the inner pipes and the inner wall of the outer pipe.
Preferably, the inner tube comprises a support layer and a nuclear pore membrane layer, the nuclear pore membrane layer is compounded on the support layer in a hot-pressing mode, and pore channels are uniformly distributed on the nuclear pore membrane layer.
Preferably, the thickness of the nuclear pore membrane layer is 5-150 microns; the diameter of the pore canal is 0.01-40 microns; pore density of 1X 104Per square centimeter-5 x 109Per square centimeter.
Preferably, the outer pipe is a PVC pipe or a metal pipe.
Preferably, the high-pressure water inlet assembly comprises a water inlet pipe, a first fixed valve and a pressurizing water inlet pump, wherein the water inlet end of the water inlet pipe is connected with the pressurizing water inlet pump, the water outlet end of the water inlet pipe is connected with the high-pressure water inlet of the outer pipe, and the first fixed valve is fixedly connected with the water inlet pipe and the outer pipe.
Preferably, the water outlet is provided with a water outlet pipe and a second fixed valve, the second fixed valve fixedly connects the water outlet pipe with the outer pipe, and the water outlet end of the water outlet is connected with a water pool or a water tank.
The utility model provides a micro-nano bubble generating device, with nuclear track membrane pipe application to micro-nano bubble generating device, the diameter of the micro-nano bubble of production is little, the quantity of the micro-nano bubble in the unit volume is many, oxygen utilization efficiency is high, has reduced the energy consumption, has improved scrubbing efficiency.
The utility model discloses a setting of micro-nano bubble water preparation portion is aerifyd to the inner tube, and it intakes through high-pressure subassembly of intaking between inner tube outer wall and the outer tube is inside, forms the gas-liquid mixture, because the inner tube adopts nuclear pore membrane pipe, utilizes characteristics such as nuclear pore membrane aperture homogeneous, density height, at the in-process of gas-liquid mixture, can produce the micro-nano bubble of minor diameter, and a large amount. The inner tube admits air, and nuclear pore membrane pipe surface produces the microbubble, and the inner tube is intake with the outer tube high pressure, and the liquid that flows through at intraductal high speed in time takes away the microbubble that nuclear pore membrane pipe surface formed, mixes from the delivery port and flows out, forms micro-nano bubble water. The device utilizes the comprehensive action of surface tension, buoyancy and inertia force, gas flowing out of the pipe forms micro-nano bubbles and is separated from the pipe wall, and the bubbles are taken away by shear flow flowing out of the pipe at high speed to form gas-liquid mixed flow.
The air inlet can set up the one end or both ends at the inner tube as required, and air inlet and high-pressure water inlet set up under the condition of different ends, and the shear flow that the outside of tubes high-speed flows through is the biggest, can separate micro-nano bubble from the pipe wall fast, and the effect is best. The inner tube is not contacted with the outer tube, so that the maximum bubbles generated by the inner tube can be ensured, liquid and gas are uniformly mixed, the number of micro-nano bubbles generated in unit volume is large, and the size of the bubbles is uniform; the inner tube sets up more than two, can set up according to the application environment, satisfies the treatment in large area waters, and sewage purification is efficient.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is the structural schematic diagram of the nuclear track membrane tube sectioning structure of the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Furthermore, if the terms "first," "second," and the like are used for descriptive purposes only, they are used for mainly distinguishing different devices, elements or components (the specific types and configurations may be the same or different), and they are not used for indicating or implying relative importance or quantity among the devices, elements or components, but are not to be construed as indicating or implying relative importance.
Detailed description of the preferred embodiment
As shown in the attached drawings 1-2, the utility model provides a micro-nano bubble generating device, which comprises a micro-nano bubble water making part 1, wherein the micro-nano bubble water making part comprises an outer tube 11 and an inner tube 12, the outer tube and the inner tube are hollow tubes, the inner tube is positioned in a cavity of the outer tube, the maximum outer diameter of the inner tube is smaller than the minimum inner diameter of the outer tube, namely a gap for facilitating the liquid to pass through is reserved between the outer tube and the inner tube, the inner tube is a nuclear pore membrane tube, one end and/or two ends of the inner tube are provided with an air inlet 13, namely the air inlet can be arranged at one end of the inner tube or both ends, the specific setting mode can be set according to application scenes, one end of the air inlet is provided with an air source part for providing an air source, the air source part can be a fan or an air compressor, the fan or the air compressor inflates the inner tube, the outer tube is provided with a high-pressure water inlet 14 and a water outlet 15, high pressure water inlet department is equipped with high pressure water inlet subassembly 2, and the direction of water inlet and delivery port can be multi-angle, to the position, specifically can adjust according to the product demand. In this embodiment, the preferable scheme is that the air inlet and the water inlet are respectively located at two ends of the micro-nano bubble water making part.
The fan is started, the outer surface of the nuclear pore membrane tube generates micro-nano bubbles, the high-pressure water inlet assembly is opened, high-pressure water flows into the inner tube, the micro-nano bubbles formed on the surface of the inner tube are taken away in time by liquid flowing through the inner tube at a high speed, and the liquid flows out from the water outlet in a mixed mode to form micro-nano bubble water.
Foretell high pressure subassembly 2 of intaking includes inlet tube 21, a standing valve 22 and pressure boost intake pump 23, the end of intaking of inlet tube be connected with the pressure boost intake pump, the pressure boost intake pump can satisfy the water pump of certain velocity of flow can, for example, the tubing pump, self priming pump, booster pump, diaphragm pump, immersible pump etc.. The water outlet end of the water inlet pipe is connected with the high-pressure water inlet of the outer pipe, and the first fixed valve fixedly connects the water inlet pipe with the outer pipe. The booster water inlet pump is provided with an adjusting valve, and the water inlet pressure value can be adjusted according to the gas-liquid ratio. This device still includes outlet pipe 3 and two 4 fixed valves, two fixed valves with outlet pipe and outer tube fixed connection, the play water end and the pond or the water tank 5 of delivery port be connected, micro-nano bubble generating device can be the direct bubble of delivery port in pond or water tank, also can be that whole device arranges in pond or water tank.
The nuclear pore membrane tube is a tubular membrane, the inner tube 12, namely the tubular nuclear pore membrane tube, comprises a support layer 121 and a nuclear pore membrane layer 122, the nuclear pore membrane layer is compounded on the support layer in a hot-pressing mode, the nuclear pore membrane layer is arranged in and/or outside the support layer, namely the nuclear pore membrane layer can be arranged on the inner side or the outer side or both the inner side and the outer side of the support layer and can be determined according to the needs of products, and pore channels are uniformly distributed on the nuclear pore membrane layer. The thickness of the nuclear pore membrane layer is 5-150 microns; the pore diameter is 0.01-40 microns; pore density of 1X 104Per square centimeter-5 x 109The membrane layer is made of one of PET, PC, PP, PVDF, PTFE or PI, the supporting layer is non-woven fabric made of PP, PET or PE, and the outer tube is PVC tube or metal tube. Said innerThe outer wall of the tube is not contacted with the inner wall of the outer tube, namely, the inner tube is suspended in the cavity of the outer tube, the inner tube and the outer tube are coaxially arranged, and the cross sections of the inner tube and the outer tube are circular. There is the space between inner tube outer wall and the outer tube inner wall, can guarantee that rivers flow through fast, and rivers apply the shearing force to the bubble of inner tube outer wall, can in time take away the bubble that the inner tube produced, form the gas-liquid mixture and flow.
Detailed description of the invention
The difference is the difference of inner tube radical with embodiment one, in this embodiment, the inner tube is more than two, and the quantity of inner tube can be confirmed according to actual need, and the radical is more, and tolerance is big more, and each inner tube is the series connection row and puts, and has the space between each inner tube, inner tube outer wall and outer tube inner wall between have the space, in this embodiment, preferred, equidistance parallel arrangement between the inner tube, interval more than or equal to 10 millimeters between two adjacent inner tubes keeps certain interval between two inner tubes, keeps certain interval between inner tube and the outer tube, the micro-nano bubble of output that can be better, the inside diameter of pipe of inner tube is more than 5 millimeters, pipe wall thickness more than or equal to 10 microns.
The utility model provides a micro-nano bubble generating device, with nuclear track membrane pipe application to micro-nano bubble generating device, the diameter of the micro-nano bubble of production is little, the quantity of the micro-nano bubble in the unit volume is many, oxygen utilization efficiency is high, has reduced the energy consumption, has improved scrubbing efficiency.
The utility model discloses a setting of micro-nano bubble water preparation portion is aerifyd to the inner tube, and it intakes through high-pressure subassembly of intaking between inner tube outer wall and the outer tube is inside, forms the gas-liquid mixture, because the inner tube adopts nuclear pore membrane pipe, utilizes characteristics such as nuclear pore membrane aperture homogeneous, density height, at the in-process of gas-liquid mixture, can produce the micro-nano bubble of minor diameter, and a large amount. The inner tube admits air, and nuclear pore membrane pipe surface produces the microbubble, and the inner tube is intake with the outer tube high pressure, and the liquid that flows through at intraductal high speed in time takes away the microbubble that nuclear pore membrane pipe surface formed, mixes from the delivery port and flows out, forms micro-nano bubble water. The device utilizes the comprehensive action of surface tension, buoyancy and inertia force, gas flowing out of the pipe forms micro-nano bubbles and is separated from the pipe wall, and the bubbles are taken away by shear flow flowing out of the pipe at high speed to form gas-liquid mixed flow.
The air inlet can set up the one end or both ends at the inner tube as required, and air inlet and high-pressure water inlet set up under the condition of different ends, and the shear flow that the outside of tubes high-speed flows through is the biggest, can separate micro-nano bubble from the pipe wall fast, and the effect is best. The inner tube is not contacted with the outer tube, so that the maximum bubbles generated by the inner tube can be ensured, liquid and gas are uniformly mixed, the number of micro-nano bubbles generated in unit volume is large, and the size of the bubbles is uniform; the inner tube sets up more than two, can set up according to the application environment, satisfies the treatment in large area waters, and sewage purification is efficient.
The micro-nano bubbles generated by the device have many characteristics superior to common bubbles, are widely applied to a water treatment process by virtue of excellent oxygen increasing capacity, good air floatation effect and strong oxidizing property, and have the advantages of small occupied area, small investment, simple and convenient operation, no pollution and the like in the application process. In the field of water treatment, micro-nano bubbles are used for treating organic matters, nitrogen, phosphorus, toxic and harmful substances and the like in water, so that the water quality of a water body is effectively improved.
According to the buoyancy principle, the larger the volume of the bubbles in the liquid, the larger the buoyancy is correspondingly applied, the diameter of the bubbles is increased, the buoyancy applied is increased, and the rising speed is increased. The micro-nano bubbles are small in size, so that the buoyancy force of the micro-nano bubbles in water is far smaller than that of a common ventilating bubble in water, the floating speed of the micro-nano bubbles is slow, the micro-nano bubbles stay in water for a longer time, and the water treatment capacity is stronger.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A micro-nano bubble generating device is characterized in that: including micro-nano bubble water preparation portion (1), micro-nano bubble water preparation portion include outer tube (11) and inner tube (12), outer tube and inner tube be the hollow tube, the inner tube be located the cavity of outer tube, the maximum external diameter of inner tube be less than the minimum internal diameter of outer tube, the inner tube be nuclear pore membrane pipe, be equipped with air inlet (13) at the one end and/or both ends of inner tube, seted up high pressure water inlet (14) and delivery port (15) on the outer tube, high pressure water inlet department is equipped with high pressure water inlet subassembly (2).
2. The micro-nano bubble generating device according to claim 1, wherein: the outer wall of the inner pipe is not contacted with the inner wall of the outer pipe, namely, the inner pipe is suspended in the cavity of the outer pipe.
3. The micro-nano bubble generating device according to claim 1, wherein: the inner pipe and the outer pipe are coaxially arranged, and the cross sections of the inner pipe and the outer pipe are circular.
4. The micro-nano bubble generating device according to claim 1, wherein: the number of the inner pipes is more than two.
5. The micro-nano bubble generating device according to claim 4, wherein: a gap is arranged between the inner pipes, and a gap is arranged between the outer walls of the inner pipes and the inner wall of the outer pipe.
6. The micro-nano bubble generating device according to claim 1, wherein: the inner tube (12) comprises a support layer (121) and a nuclear pore membrane layer (122), wherein the nuclear pore membrane layer is compounded on the support layer in a hot-pressing mode, and pore channels are uniformly distributed on the nuclear pore membrane layer.
7. Micro-nano according to claim 6Rice bubble generating device, its characterized in that: the thickness of the nuclear pore membrane layer is 5-150 microns; the diameter of the pore canal is 0.01-40 microns; pore density of 1X 104Per square centimeter-5 x 109Per square centimeter.
8. The micro-nano bubble generating device according to claim 1, wherein: the outer pipe is a PVC pipe or a metal pipe.
9. The micro-nano bubble generating device according to claim 1, wherein: high pressure subassembly (2) of intaking include inlet tube (21), standing valve (22) and pressure boost intake pump (23), the end of intaking of inlet tube be connected with the pressure boost intake pump, the high pressure water inlet of the play water end of inlet tube and outer tube be connected, standing valve one with inlet tube and outer tube fixed connection.
10. The micro-nano bubble generating device according to claim 1, wherein: the water outlet is provided with a water outlet pipe (3) and a second fixed valve (4), the second fixed valve fixedly connects the water outlet pipe with the outer pipe, and the water outlet end of the water outlet is connected with a water pool or a water tank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120838174.0U CN214693532U (en) | 2021-04-20 | 2021-04-20 | Micro-nano bubble generating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120838174.0U CN214693532U (en) | 2021-04-20 | 2021-04-20 | Micro-nano bubble generating device |
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| CN214693532U true CN214693532U (en) | 2021-11-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115141748A (en) * | 2022-06-14 | 2022-10-04 | 南京工业大学 | Microporous membrane tube reactor and application thereof in immobilized enzyme catalytic reaction |
-
2021
- 2021-04-20 CN CN202120838174.0U patent/CN214693532U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115141748A (en) * | 2022-06-14 | 2022-10-04 | 南京工业大学 | Microporous membrane tube reactor and application thereof in immobilized enzyme catalytic reaction |
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Effective date of registration: 20230411 Address after: No.07, 31st Floor, Building 5, Aoyuan Lingyu, No. 3 Jinshan Avenue, Huicheng District, Huizhou City, Guangdong Province, 516007 Patentee after: Guangdong Dongjiang Huineng Technology Development Co.,Ltd. Address before: 516025 1st floor, building A3, No.19 Jinzhong Road, Huizhou Industrial Park, huiao Avenue, Huicheng District, Huizhou City, Guangdong Province Patentee before: Huizhou Kejin ionic membrane materials Research Institute |
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Effective date of registration: 20240716 Address after: 516025 1st floor, building A3, No.19 Jinzhong Road, Huizhou Industrial Park, huiao Avenue, Huicheng District, Huizhou City, Guangdong Province Patentee after: Huizhou Kejin ionic membrane materials Research Institute Country or region after: China Address before: No.07, 31st Floor, Building 5, Aoyuan Lingyu, No. 3 Jinshan Avenue, Huicheng District, Huizhou City, Guangdong Province, 516007 Patentee before: Guangdong Dongjiang Huineng Technology Development Co.,Ltd. Country or region before: China |
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