CN216799401U - Tubular dynamic membrane filtering device - Google Patents
Tubular dynamic membrane filtering device Download PDFInfo
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- CN216799401U CN216799401U CN202220539456.5U CN202220539456U CN216799401U CN 216799401 U CN216799401 U CN 216799401U CN 202220539456 U CN202220539456 U CN 202220539456U CN 216799401 U CN216799401 U CN 216799401U
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Abstract
The utility model relates to a tubular dynamic membrane filtering device which comprises a tubular membrane element, a tubular membrane element connecting pipe, a water inlet pipe, a water return pipe, a water tank, a water inlet pipe and a water inlet pump, wherein a purified water outlet is formed in the tubular membrane element, and a water catchment pipe part is arranged at one end of the purified water outlet. The tubular membrane element comprises n tubes, wherein n is more than or equal to 2, the n tubes of the tubular membrane element are sequentially connected in series through tubular membrane element connecting pipes, one end of the water return pipe is connected with the tubular membrane element, the other end of the water return pipe is connected with the water tank, and a purified water outlet is formed in the tubular membrane element. The tubular membrane elements are connected in series, occupied space positions are few, sewage sequentially passes through the tubular membrane elements, the effect of water purification is achieved, the water outlet flux is stable, the water quality after purification is high, and the purpose of reclaimed water recycling is achieved. The utility model adopts an external mode, the whole device is simple to assemble and maintain, the application scene is not limited by a sewage pool, and the application range is wide.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment devices, and particularly relates to a tubular dynamic membrane filtering device.
Background
The dynamic membrane is a new membrane formed on the surface of the membrane by pre-coating agent or activated sludge, the sewage is filtered by the new membrane layer, the manufacturing cost of the membrane component is effectively reduced, a large-aperture membrane material can be used as a filtering supporting layer, and the pre-coating agent is adopted to form the dynamic membrane on the surface of the membrane material before filtering, so that the filtering aperture is reduced, and the filtering and purifying capacity is enhanced.
The existing dynamic membrane has two forms, namely an internal dynamic membrane and an external dynamic membrane. The patent number ZL201010140141.5 discloses an external dynamic membrane, namely a non-woven fabric tubular self-generation dynamic membrane assembly and a manufacturing method and a using method thereof, the external dynamic membrane adopts a pumping mode to carry out aeration evolution on sewage, a purifying device needs to be arranged in a sewage tank to be treated, the application scene is poor in universality, the occupied space is large, the membrane assembly is easy to block and not easy to clean, the maintenance cost is high, and the sewage treatment cost is high. The built-in type mechanical circulation forced cross flow solid-liquid separation dynamic membrane system and device with a single pipe internal pressure type as disclosed in patent No. ZL201010140141.5 are formed by connecting external pipe type dynamic membranes in parallel, the connection among pipelines is complex, the flow of a total water inlet pipe and a total water outlet pipe is large, the energy consumption is large, and the water purification efficiency is low; the supporting mode of the porous thin-walled tube is complicated, the flux of the unit area of the dynamic membrane is influenced due to the existence of the supporting framework, the water purification efficiency and the backwashing efficiency are not high, and the energy consumption of industrial application is large.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tubular dynamic membrane filtering device, which effectively solves the technical problems of low flux, low water outlet efficiency, high maintenance cost and the like of the conventional dynamic filtering device.
The utility model provides a tubular dynamic membrane filtering device which comprises a tubular membrane element, a tubular membrane element connecting pipe, a water inlet pipe, a water return pipe and a water tank, wherein the tubular membrane element comprises n tubular membrane elements, n is more than or equal to 2, the n tubular membrane elements are sequentially connected in series through the tubular membrane element connecting pipe, the tubular membrane element comprises a water inlet end and a water outlet end, one end of the water inlet pipe is connected with the water inlet end of the 1 st tubular membrane element, the other end of the water inlet pipe is connected with the water tank, one end of the water return pipe is connected with the water outlet end of the n th tubular membrane element, the other end of the water return pipe is connected with the water tank, a purified water outlet is arranged on the tubular membrane element, and a water collecting pipe part is arranged at one end of the purified water producing port. According to the utility model, the tubular membrane elements are connected in series, cross flow circulation is carried out by adopting an internal pressure mode, the time for forming the precoating dynamic membrane is short, the filtering device can continuously work, the decontamination efficiency is improved, and the product is easy to maintain by adopting an external structure.
Preferably, the tubular membrane element comprises a shell and a tubular membrane arranged inside the shell, the tubular membrane is fixed in the shell, the tubular membrane comprises a filtering part for filtering and a fixing part for fixing the filtering part to the shell, and a gap between the fixing part and the shell is filled with sealant.
Preferably, the tubular membrane is in a circular tube shape, and is formed by processing non-woven fabrics, a nuclear pore membrane or a stainless steel mesh.
Preferably, the purified water producing port is arranged on the shell corresponding to the tubular membrane filtering part, the purified water producing port is arranged at any position of the shell corresponding to the filtering part, and one or more purified water producing ports are arranged.
Preferably, one end of the purified water producing port is provided with a water collecting pipe component, the water collecting pipe component comprises a three-way connector and a purified water collecting pipe, one end of the three-way connector is fixedly connected with the purified water producing port, and the other two ends of the three-way connector are respectively connected with the purified water collecting pipe.
Preferably, each tubular membrane element is provided with two clean water product nozzles, the positions of the clean water product nozzles arranged on the tubular membrane elements are the same, and the number of the water collecting pipe parts is matched with the number of the clean water product nozzles arranged on each tubular membrane element.
Preferably, the water collecting ends of the two water collecting pipe components are connected in parallel through a pipeline, a purified water discharging pipe is arranged in the middle of the pipeline, a water outlet valve is arranged on the purified water discharging pipe, and a purified water pool is arranged at one end of the purified water discharging pipe.
Preferably, the tubular membrane element fixing device further comprises a movable fixing frame, the movable fixing frame comprises a base and a support, the tubular membrane element is fixed on the support, the support is fixedly connected with the base, and a movable pulley is arranged below the base. The whole device can be conveniently moved by moving the fixing frame, so that construction is facilitated, and dependence on manpower is reduced.
Preferably, the support is hinged with the base in a fixed connection mode, and the rotation angle of the support on the base is 0-180 degrees. The support is fixed on the base in a hinged mode, namely the relative position of the tubular membrane element and the base can be adjusted according to the requirement of a construction site, and if the whole construction position is narrow, the whole tubular membrane element can be fixed on the support in sequence along the longitudinal space, so that the transverse position is reduced; when the longitudinal position of the whole construction position is limited and the transverse position is large, the whole-pipe membrane element can be fixed on the support in sequence along the transverse space, so that the longitudinal position is reduced.
Preferably, be equipped with valve one, circulating pump and manometer one on the oral siphon in proper order, the wet return on be equipped with manometer two and valve two in proper order, there is the difference in height between the water inlet of oral siphon and the outlet of wet return, the outlet of wet return is located the top of the water inlet of oral siphon, water tank one side be equipped with the inlet tube, be equipped with the intake pump on the inlet tube.
The utility model provides a tubular dynamic membrane filtering device, which adopts a series connection mode to connect a plurality of tubular membrane elements, occupies less space, and sewage passes through each tubular membrane element in sequence to achieve the effect of water purification, has stable water outlet flux and high purified water quality, and achieves the aim of recycling reclaimed water. The utility model is arranged outside the sewage pool, namely an external mode is adopted, the whole device is simple to assemble and maintain, the application scene is not limited by the sewage pool, the application range is wide, and the industrial popularization and application are easy.
The water tank of the device can be used as a coating tank or a raw water tank, before sewage treatment, a coating agent is added into the water tank, the inner wall of the tubular membrane is coated under the action of the circulating pump to form a dynamic membrane, after the dynamic membrane is formed, the device treats the sewage, the dynamic membrane is precoated for a period of time, the whole device can work continuously, and the decontamination efficiency is improved; the sewage is treated in a pre-coating dynamic membrane mode, and the cleaning of the tubular membrane can be finished only by adding water from a water purifying and producing port to carry out back washing on the tubular membrane under the condition of reduced flux, so that the recycling of the tubular membrane is facilitated, and the service life of the tubular membrane is prolonged; the tubular membrane is fixed with the shell in a mode of glue pouring at two ends, and a filtering hole of a filtering part is not shielded, so that the flux of the tubular membrane in unit area is improved; by adopting the dynamic membrane mode, the tubular membrane has wide material selection range and low requirement on the aperture of the tubular membrane, the service life of the tubular membrane can be prolonged, and the decontamination effect is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic structural view of a tubular membrane element according to the present invention.
FIG. 3 is a schematic longitudinal sectional view of a tubular membrane element according to the present invention.
FIG. 4 is a schematic cross-sectional view of a tubular membrane element according to the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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 components; in the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like, if any, are used in the orientations and positional relationships indicated in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationships in the drawings are used 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 fig. 1-4, the present invention provides a tubular dynamic membrane filtration device, which comprises a tubular membrane element 1, a tubular membrane element connecting pipe 2, a water inlet pipe 3, a water return pipe 4, a water tank 5, a water inlet pipe 9 and a water inlet pump 10, wherein the tubular membrane element is provided with a purified water outlet 6, and one end of the purified water outlet is provided with a water collecting pipe part 7. Be equipped with valve 31, circulating pump 32 and manometer 33 on the oral siphon in proper order, the wet return on be equipped with manometer two 41 and valve two 42 in proper order, there is the difference in height between the water inlet of oral siphon and the outlet of wet return, the outlet of wet return is located the top of the water inlet of oral siphon, water tank one side be equipped with inlet tube 9, be equipped with intake pump 10 on the inlet tube. The water tank in the in-process that forms dynamic membrane, use as the coating case, place the coating agent that will prepare in the water tank to after the intensive mixing, ensure that clear water and coating agent intensive mixing become coating liquid and coat, after accomplishing the coating, this water tank uses as former water tank, by intake pump suction raw water, carry to the water tank in, the rethread oral siphon will treat that the purification water is carried to tubular film element and is filtered, accomplish sewage purification.
In the utility model, the tubular membrane elements comprise n, wherein n is more than or equal to 2, the specific number of the tubular membrane elements can be determined according to the application environment, and in the embodiment, 6 tubular membrane elements are adopted, namely a first tubular membrane element, a second tubular membrane element, a third tubular membrane element, a fourth tubular membrane element, a fifth tubular membrane element and a sixth tubular membrane element. The 6 tubular membrane elements are sequentially connected in series through tubular membrane element connecting pipes, each tubular membrane element comprises a water inlet end 1-1 and a water outlet end 1-2, the tubular membrane element connecting pipes are U-shaped bent pipes, and the number of the tubular membrane element connecting pipes is 1 less than that of the tubular membrane elements. In this embodiment, the number of the tubular membrane element connecting pipes is 5, which are respectively a first tubular membrane element connecting pipe, a second tubular membrane element connecting pipe, a third tubular membrane element connecting pipe, a fourth tubular membrane element connecting pipe, and a fifth tubular membrane element connecting pipe.
One end of the water inlet pipe is connected with the water inlet end of the first tubular film element, the other end of the water inlet pipe is connected with the water tank, and the water outlet end of the first tubular film element is connected with the water inlet end of the first tubular film element connecting pipe; the water outlet end of the first tubular membrane element connecting pipe is connected with the water inlet end of the second tubular membrane element, and the water outlet end of the second tubular membrane element is connected with the water inlet end of the second tubular membrane element connecting pipe; the water outlet end of the tubular membrane element connecting pipe II is connected with the water inlet end of the tubular membrane element III, and the water outlet end of the tubular membrane element III is connected with the water inlet end of the tubular membrane element connecting pipe III; the water outlet end of the tubular membrane element connecting pipe III is connected with the water inlet end of the tubular membrane element IV, and the water outlet end of the tubular membrane element IV is connected with the water inlet end of the tubular membrane element connecting pipe IV; the water outlet end of the fourth connecting pipe of the tubular membrane element is connected with the water inlet end of the fifth connecting pipe of the tubular membrane element; the water outlet end of the fifth tubular film element connecting pipe is connected with the water inlet end of the sixth tubular film element, the water outlet end of the sixth tubular film element is connected with the water inlet end of the water return pipe, namely 6 tubular film elements are sequentially connected in series through 5 tubular film element connecting pipes, and the water outlet of the water return pipe is connected with the water tank. And sewage to be treated is input into each tubular membrane element through a water inlet pipe, each tubular membrane element respectively filters and purifies the input sewage, the previous tubular membrane element does not have filtered backwater, the next tubular membrane element continues to filter the sewage until the last tubular membrane element is filtered, and a backwater pipe returns the residual water to the water tank for further reciprocating and circulating filtration.
The purified water producing nozzle is arranged on the shell, and one or more purified water producing nozzles can be arranged on the side wall of the shell. The water outlet of the purified water is arranged on the shell corresponding to the tubular membrane filtering part, and the water outlet of the purified water is arranged at any position of the shell corresponding to the filtering part. In this embodiment, be provided with two clean water product mouths of a river on every tubular film element, two clean water product mouths of a river set up respectively at the both ends of casing filter portion, it sets up position orientation and tubular film element direction of arranging perpendicularly, for example, the direction that tubular film element arranged in proper order is the Y axle, then the water product mouth of clean water sets up on the X axle of tubular film element, even make the clean water flow direction and return water flow direction mutually perpendicular, the return water of being convenient for is at the in-process of scouring tubular membrane inner wall, take away the attachment on the tubular membrane pipe wall through the shearing force, the play water efficiency of whole drainage has been promoted, make the water purification effect of whole device better, water flux is big.
The specific working process of this embodiment is as follows:
1. firstly, coating the inner wall of the tubular membrane, opening a first valve and a second valve, closing a water outlet valve on a water collecting pipe part, adding a proper amount of clear water into a water tank, starting a circulating pump, allowing the clear water to flow through a first pressure gauge through a water inlet pipe and then enter the tubular membrane elements connected in series under the action of the circulating pump, allowing the clear water to flow out of a water outlet of the last tubular membrane element, flowing out of a water outlet of a second pressure gauge through a water outlet of a return pipe, and allowing the clear water to flow into the water tank again to form internal circulation. After the equipment stably runs, the prepared coating agent is added into the water tank and fully stirred, and the coating agent is ensured to be fully mixed with clear water to form coating liquid for coating.
2. And (3) filtering sewage, after coating is finished, starting a water inlet pump, conveying the sewage to the water tank through a water inlet pipe, enabling the coating liquid to automatically overflow out of the water tank, gradually replacing the sewage, and after flux attenuation is stable, opening a water outlet valve on a water collecting pipe component, and enabling the equipment to start filtering the sewage. Under the action of the circulating pump, sewage is conveyed into the tubular membrane elements connected in series through the water inlet pipe, flows into the corresponding purified water collecting pipe from the purified water producing port under the action of internal pressure, and finally flows into the purified water tank from the purified water outlet. And the rest sewage flows out from the outlet of the water return pipe according to the coating route and enters the water tank again. 3. Cleaning: stopping filtering, closing a water outlet valve on the water collecting pipe part, discharging sewage in the water tank, adding proper clear water or liquid medicine, starting the equipment, keeping the same water inlet and outlet pressure as that in the filtering state, flushing residual sludge in the tubular membrane by using the clear water or the liquid medicine in the water tank, and then refluxing the sewage to the water tank.
The utility model provides a tubular dynamic membrane filtering device, which adopts a series connection mode to connect a plurality of tubular membrane elements, occupies less space, and sewage passes through each tubular membrane element in sequence to achieve the effect of water purification, has stable water outlet flux and high purified water quality, and achieves the aim of recycling reclaimed water. The utility model is arranged outside the sewage pool, namely an external mode is adopted, the whole device is simple to assemble and maintain, the application scene is not limited by the sewage pool, the application range is wide, and the industrial popularization and application are easy.
The water tank of the device can be used as a coating tank or a raw water tank, before sewage treatment, a coating agent is added into the water tank, the inner wall of the tubular membrane is coated under the action of the circulating pump to form a dynamic membrane, after the dynamic membrane is formed, the device treats the sewage, the dynamic membrane is precoated for a period of time, the whole device can work continuously, and the decontamination efficiency is improved; the sewage is treated in a pre-coating dynamic membrane mode, and the cleaning of the tubular membrane can be finished only by adding water from a water purifying and producing port to carry out back washing on the tubular membrane under the condition of reduced flux, so that the recycling of the tubular membrane is facilitated, and the service life of the tubular membrane is prolonged; the tubular membrane is fixed with the shell in a mode of glue pouring at two ends, and a filtering hole of a filtering part is not shielded, so that the flux of the tubular membrane in unit area is improved; by adopting the dynamic membrane mode, the tubular membrane has wide material selection range and low requirement on the aperture of the tubular membrane, the service life of the tubular membrane can be prolonged, and the decontamination effect is improved.
Detailed description of the utility model
The main point of the utility model is that, in this embodiment, the water collecting pipe part includes a T-shaped three-way joint 71 and a purified water collecting pipe 72, one end of the three-way joint is fixedly connected with the purified water producing port, and two ends of the three-way joint on the same straight line are respectively connected with the purified water collecting pipe.
Two purified water outlets are arranged on each tubular membrane element, the positions of the purified water outlets on each tubular membrane element are the same, the number of the water collecting pipe parts is matched with the number of the purified water outlets on each tubular membrane element, namely in the embodiment, the purified water collecting pipes collect the purified water outlets on each tubular membrane element, the two purified water collecting pipes are connected in parallel, an exhaust valve 76 is arranged at the top of one collecting pipe, the water collecting ends of the two water collecting pipe parts are connected in parallel through a pipeline 73, a purified water discharging pipe 74 is arranged in the middle of the pipeline, a water outlet valve 75 is arranged on the purified water discharging pipe, and a purified water pool is arranged at one end of the purified water discharging pipe. If a plurality of purified water outlets are arranged on the single tubular membrane element, a plurality of purified water collecting pipes are connected in parallel. Through the setting of catchment pipe part, can in time collect the purified water that tubular membrane element filtered out in time, improve purification efficiency.
Detailed description of the preferred embodiment
The utility model is different from the first specific embodiment or the second specific embodiment mainly in that, in the present embodiment, the mobile fixing frame 8 is further included, the mobile fixing frame includes a base 81 and a support 82, the tubular membrane element is fixed on the support, the support is fixedly connected with the base, the support is hinged with the base, the rotation angle of the support on the base is 0-180 °, and the angle can be adjusted in time according to the space of the application site to match the application site, for example, the application site can be in a horizontal state or an upright state, namely 0 ° or 90 °. At this embodiment, the support is 90 with the horizontal plane, the setting of support, each tubular film element of fixed that can be fine, and has utilized the extension space, area is little, base below be equipped with and remove pulley 83, through the control pulley, can remove whole device, the construction application of being convenient for.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit 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 tubular dynamic membrane filtration device, characterized in that: the water tank type water purification membrane comprises a tubular membrane element (1), a tubular membrane element connecting pipe (2), a water inlet pipe (3), a water return pipe (4) and a water tank (5), wherein the tubular membrane element comprises n root canal membrane elements, n is more than or equal to 2, the n root canal membrane elements are sequentially connected in series through the tubular membrane element connecting pipe, the tubular membrane element comprises a water inlet end and a water outlet end, one end of the water inlet pipe is connected with the water inlet end (1-1) of the 1 st root canal membrane element, the other end of the water inlet pipe is connected with the water tank, one end of the water return pipe is connected with the water outlet end (1-2) of the n th root canal membrane element, the other end of the water return pipe is connected with the water tank, a purified water outlet (6) is arranged on the tubular membrane element, and a water collecting pipe part (7) is arranged at one end of a purified water outlet.
2. The tubular dynamic membrane filtration device of claim 1, wherein: tubular membrane element (1) include casing (11) and set up at inside tubular membrane (12) of casing, tubular membrane fix in the casing, tubular membrane including being used for filterable filter house and being used for fixing the fixed part to the casing, fixed part and casing between the clearance position on the pouring sealant (13).
3. The tubular dynamic membrane filtration device according to claim 2, wherein: the tubular membrane is in a circular tube shape and is formed by processing non-woven fabrics, nuclear pore membranes or stainless steel meshes.
4. The tubular dynamic membrane filtration device according to claim 2, wherein: the water producing port for water purification is arranged on the shell corresponding to the tubular membrane filtering part, the water producing port for water purification is arranged at any position of the shell corresponding to the filtering part, and one or more water producing ports for water purification are arranged.
5. The tubular dynamic membrane filtration device of claim 1, wherein: the water collecting pipe component comprises a three-way joint (71) and a purified water collecting pipe (72), one end of the three-way joint is fixedly connected with a purified water producing port, and the other two ends of the three-way joint are respectively connected with the purified water collecting pipe.
6. The tubular dynamic membrane filtration device according to claim 5, wherein: all be equipped with two clean aquatic products mouths of a river on every tubular film element, each tubular film element sets up the same in the position of clean aquatic products mouth of a river, and the quantity of catchment pipe part and the number phase-match of clean aquatic products mouth of a river on every tubular film element.
7. The tubular dynamic membrane filtration device according to claim 6, wherein: the water collecting ends of the two water collecting pipe components are connected in parallel through a pipeline (73), a purified water discharging pipe (74) is arranged in the middle of the pipeline, a water outlet valve (75) is arranged on the purified water discharging pipe, and a purified water pool is arranged at one end of the purified water discharging pipe.
8. The tubular dynamic membrane filtration device of claim 1, wherein: still including removing mount (8), remove the mount and include base (81) and support (82), tubular film element fix on the support, support and base fixed connection, base below be equipped with and remove pulley (83).
9. The tubular dynamic membrane filtration device according to claim 8, wherein: the support is hinged with the base in a fixed connection mode, and the rotation angle of the support on the base is 0-180 degrees.
10. The tubular dynamic membrane filtration device of claim 1, wherein: be equipped with valve one (31), circulating pump (32) and manometer one (33) on the oral siphon in proper order, the wet return on be equipped with manometer two (41) and valve two (42) in proper order, there is the difference in height between the water inlet of oral siphon and the outlet of wet return, the outlet of wet return is located the top of the water inlet of oral siphon, water tank one side be equipped with inlet tube (9), be equipped with intake pump (10) on the inlet tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220539456.5U CN216799401U (en) | 2022-03-11 | 2022-03-11 | Tubular dynamic membrane filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220539456.5U CN216799401U (en) | 2022-03-11 | 2022-03-11 | Tubular dynamic membrane filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216799401U true CN216799401U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220539456.5U Active CN216799401U (en) | 2022-03-11 | 2022-03-11 | Tubular dynamic membrane filtering device |
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| Country | Link |
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| CN (1) | CN216799401U (en) |
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- 2022-03-11 CN CN202220539456.5U patent/CN216799401U/en active Active
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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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