CN114230029A - Water collecting device of filtering system - Google Patents
Water collecting device of filtering system Download PDFInfo
- Publication number
- CN114230029A CN114230029A CN202111403913.4A CN202111403913A CN114230029A CN 114230029 A CN114230029 A CN 114230029A CN 202111403913 A CN202111403913 A CN 202111403913A CN 114230029 A CN114230029 A CN 114230029A
- Authority
- CN
- China
- Prior art keywords
- filter
- cartridge
- collecting device
- water
- filter cartridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a water collecting device of a filtering system, which relates to the technical field of water collecting devices and comprises a filter cartridge, wherein a water inlet pipe is arranged at the top of the filter cartridge, an opening and closing valve is arranged on the water inlet pipe, a horizontal connecting pipe is arranged at the bottom of the filter cartridge, a plurality of shunt pipes are arranged at the bottom of the connecting pipe, shunt valves are arranged on the shunt pipes, a horizontal filter screen is arranged in the filter cartridge, a filter core positioned below the filter screen is arranged in the filter cartridge, a rotating rod extending into the filter cartridge is rotatably arranged at the center of the top of the filter cartridge, a rotating plate is arranged at the bottom of the rotating rod, a brush plate is arranged at the bottom of the rotating plate, a driving part for driving the rotating rod to rotate is arranged at the top of the filter cartridge, a slag discharge pipe is arranged on the side surface of the filter cartridge, the bottom of the slag discharge pipe is connected with the top of the filter screen, and a slag discharge valve is arranged on the slag discharge pipe. According to the invention, water in the filter cartridge is stirred, the filter screen is cleaned, the filtering effect on the water is ensured, and impurities are discharged from the slag discharge pipe through centrifugal motion.
Description
Technical Field
The invention relates to the technical field of water collecting devices, in particular to a water collecting device of a filtering system.
Background
Water is the indispensable resource that human lives and develops on its own, and the fresh water that can supply people to develop and utilize is less than 1% of earth's total water yield, for the condition of coping with current water resource shortage, often improves the water supply through water collection device, and current water collection device often carries out the replenishment of water consumption through collecting rainwater, groundwater and getting fresh water by the ocean, and the waste water direct discharge that produces in the life has caused very big waste.
Based on the problems, a filtering system water collecting device is designed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a water collecting device of a filtering system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water collecting device of a filtering system comprises a filter cartridge, wherein the top of the filter cartridge is provided with a water inlet pipe, the water inlet pipe is provided with an opening and closing valve, the bottom of the filter cartridge is provided with a horizontal connecting pipe, the bottom of the connecting pipe is provided with a plurality of shunt pipes, the shunt pipes are provided with shunt valves, the filter cylinder is internally provided with a horizontal filter screen, a filter element positioned below the filter screen is arranged in the filter cartridge, a rotating rod extending to the inside of the filter cartridge is rotatably arranged at the center of the top of the filter cartridge, the bottom of the rotating rod is provided with a rotating plate, the bottom of the rotating plate is provided with a brush plate, the top of the filter cylinder is provided with a driving piece for driving the rotating rod to rotate, the side of cartridge filter is provided with the scum pipe, the bottom of scum pipe with the top of filter screen links up, be provided with the sediment valve on the scum pipe.
Through adopting foretell technical scheme, in the in-service use, water lets in the cartridge filter, and the rotor plate stirs the water in the cartridge filter for impurity suspension reduces the jam of impurity to the filter screen, guarantees the filter treatment of filter screen to water. The water in the filter cartridge is primarily filtered by the filter screen and then treated by the filter element, and the treated water flows out from the shunt pipe. In the process of stirring the water in the filter cartridge, the brush plate cleans the surface of the filter screen, so that the filter screen can be further prevented from being blocked by impurities. In addition, the water inlet pipe is periodically closed, the brush plate rotates along with the rotating rod, and the generated centrifugal force enables impurities to enter the slag discharging pipe and be discharged from the slag discharging pipe, so that the filter screen is cleaned.
Furthermore, be provided with in the cartridge filter be located the filter screen with filter the adsorbed layer between the core, the adsorbed layer is used for adsorbing the peculiar smell of aquatic.
Further, the adsorption layer is an activated carbon layer.
By adopting the technical scheme, in actual use, the activated carbon layer has stronger adsorption capacity, can effectively remove peculiar smell in water and can further filter the water.
Furthermore, an installation shell is arranged in the filter cylinder, through holes are formed in the upper side and the lower side of the installation shell, and the activated carbon layer is installed in the installation shell.
Through adopting above-mentioned technical scheme, in the in-service use, for the activated carbon layer provides mounting structure, and the rivers of being convenient for flow through the activated carbon layer.
Furthermore, a mounting port is formed in the side face of the filter cartridge, the mounting shell is inserted into the filter cartridge from the mounting port, a slide rail which is matched with the mounting shell in a sliding mode is arranged in the filter cartridge, and the mounting shell is detachably mounted on the filter cartridge.
By adopting the technical scheme, the activated carbon layer can be conveniently replaced in actual use, and the peculiar smell in water can be removed.
Furthermore, the filter cartridge comprises a cartridge body with a flange, a top cover and a bottom cover, wherein the top cover and the bottom cover can be detachably mounted on the cartridge body, the bottom cover is provided with a plurality of positioning plates for positioning the filter element, the cartridge body is internally provided with a mounting plate for positioning the filter element, and the filter element is hermetically arranged between the positioning plates and the mounting plate.
By adopting the technical scheme, the device is convenient to install and replace or maintain the components in the device in actual use.
Further, the driving member is a motor.
Further, an exhaust piece is arranged at the top of the connecting pipe.
Through adopting foretell technical scheme, in-service use, the air in the discharge duct is discharged to the exhaust fitting, guarantees that the shunt tubes can carry out normal drainage.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, water is introduced into the filter cylinder, and the water in the filter cylinder is stirred, so that impurities are suspended, the blockage of the filter screen is reduced, and the water filtering treatment of the filter screen is ensured. The water in the filter cartridge is primarily filtered by the filter screen and then treated by the filter element, and the treated water flows out from the shunt pipe. In the process of stirring the water in the filter cartridge, the surface of the filter screen is cleaned, so that the filter screen can be further prevented from being blocked by impurities. In addition, the water inlet pipe is periodically closed, the brush plate rotates along with the rotating rod, and the generated centrifugal force enables impurities to enter the slag discharging pipe and be discharged from the slag discharging pipe, so that the filter screen is cleaned. The activated carbon layer is arranged and used for removing peculiar smell in water, further ensuring the water treatment effect and facilitating the replacement of the activated carbon layer.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the mounting case of the present invention.
Reference numbers in the figures: 1. a filter cartridge; 2. a water inlet pipe; 3. opening and closing a valve; 4. a connecting pipe; 5. a shunt tube; 6. a flow divider valve; 7. a filter screen; 8. a filter element; 9. rotating the rod; 10. a rotating plate; 11. brushing the board; 12. a drive member; 13. a slag discharge pipe; 14. a slag discharge valve; 15. an activated carbon layer; 16. installing a shell; 17. an installation port; 18. a slide rail; 19. an exhaust member; 20. a barrel body; 21. a top cover; 22. a bottom cover; 23. positioning a plate; 24. and (7) mounting the plate.
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 only a part of the embodiments of the present invention, and not all of the embodiments.
The invention discloses a water collecting device of a filtering system.
As shown in fig. 1 and 2, the water collecting device of the filtering system comprises a vertical filtering cylinder 1, a water inlet pipe 2 is connected to the top of the filtering cylinder 1, an opening and closing valve 3 for opening or closing the water inlet pipe 2 is installed on the water inlet pipe 2, a horizontal connecting pipe 4 is connected to the bottom of the filtering cylinder 1, a plurality of shunt pipes 5 are connected to the bottom of the connecting pipe 4, and shunt valves 6 for opening or closing the shunt pipes 5 are installed on the shunt pipes 5.
A horizontal filter screen 7 is arranged in the filter cartridge 1, and a filter core 8 positioned below the filter screen 7 is arranged in the filter cartridge 1. Water from inlet tube 2 get into cartridge filter 1 after, through filter screen 7 and filter core 8 in proper order and carry out filtration treatment, flow out in shunt tubes 5 at last, carry out dual filtration treatment to water, guarantee the treatment effect to water.
In the present embodiment, the filter cartridge 1 includes a cartridge body 20, a top cap 21, and a bottom cap 22, which are hermetically provided.
Specifically, the flanges at the two ends of the barrel body 20 are arranged, the top cover 21 and the bottom cover 22 are detachably mounted on the barrel body 20 through bolts or quick clamps, and the contact surfaces of the top cover 21 and the bottom cover 22 and the barrel body 20 are respectively provided with a sealing pad body. The water inlet pipe 2 and the connection pipe 4 are installed at the upper and lower ends of the barrel 20.
In this embodiment, an annular mounting plate 24 is fixed in the barrel 20, a caulking groove is formed at the bottom of the mounting plate 24, a plurality of positioning plates 23 are uniformly fixed on the top surface of the bottom cover 22, a plurality of positioning grooves for positioning the filter element 8 are formed at the top of the positioning plates 23, the filter element 8 is installed between the positioning plates 23 and the mounting plate 24, and after the barrel 20 and the bottom cover 22 are locked, the filter element 8 is attached to the positioning plates 23 and the mounting plate 24. The joint surface of the filter element 8 and the mounting plate 24 is provided with a sealing gasket body, so as to seal the gap between the filter element 8 and the mounting plate 24.
In addition, in the present embodiment, a rotation rod 9 extending to the inside of the barrel 20 is rotatably installed at the top center of the top cover 21, and the rotation rod 9 is vertically disposed. The bottom of dwang 9 is fixed with rotor plate 10, and rotor plate 10 is located filter screen 7 directly over, and rotor plate 10 and filter screen 7 clearance fit are fixed with brush board 11 in the bottom of rotor plate 10, and brush board 11 and filter screen 7 surface contact install drive dwang 9 pivoted driving piece 12 at the top of top cap 21. The side of barrel 20 is put through and is had slag pipe 13, and the bottom of slag pipe 13 links up with the top of filter screen 7, installs on the slag pipe 13 and opens or close slag valve 14 of slag pipe 13.
In this embodiment, the driving member 12 is a motor, which can be directly connected to the rotating rod 9, or can be connected to the rotating rod 9 through a gear engagement relationship, and in the drawing, the motor is installed on the top cover 21 and directly connected to the rotating rod 9 to drive the rotating rod 9 to operate.
During the use, driving piece 12 drive dwang 9 rotates, drives rotor plate 10 and brush board 11 operation in step, stirs water for the impurity suspension of aquatic, in addition, brush board 11 scrubs filter screen 7, effectively avoids impurity to block up filter screen 7, guarantees the treatment quality to water. In addition, after the water inlet pipe 2 is closed, impurities on the filter screen 7 enter the slag discharge pipe 13 by the centrifugal force generated by the brush plate 11, the slag discharge pipe 13 is opened, slag can be discharged, and the subsequent water treatment quality is ensured.
Because some peculiar smell can exist in water, the conventional filtering treatment has no place to eliminate the peculiar smell, and in order to solve the problem, an adsorption layer for adsorbing the peculiar smell in the water is arranged in the cylinder body 20 and is positioned between the filter screen 7 and the filter element 8.
In this embodiment, the adsorption layer is an activated carbon layer 15. In order to replace the activated carbon layer 15 conveniently, an installation shell 16 is installed in the barrel body 20, through holes are formed in the upper side and the lower side of the installation shell 16, and the activated carbon layer 15 is installed in the installation shell 16.
The side of barrel 20 is seted up installing port 17, and the inboard of barrel 20 is fixed with slide rail 18, and installation casing 16 inserts in barrel 20 from installing port 17 to with the slide rail 18 sliding fit in barrel 20, the tip of installation casing 16 passes through the bolt and can dismantle the fixing on barrel 20, installation casing 16 and barrel 20 sealing connection.
Generally, the activated carbon layer 15 and the mounting shell 16 can be replaced together, or the activated carbon layer 15 in the mounting shell 16 can be directly replaced, so that the mounting shell 16 can be recycled, and resources are saved.
In the present embodiment, the exhaust member 19 is installed on the top of the connection pipe 4, and the exhaust member 19 includes an exhaust pipe and an exhaust valve installed on the exhaust pipe, and the exhaust pipe is disposed vertically upward.
The specific implementation principle of the invention is as follows:
according to the invention, water is introduced into the filter cartridge 1, and the water in the filter cartridge 1 is stirred, so that impurities are suspended, the blockage of the filter screen 7 is reduced, and the water filtering treatment of the filter screen 7 is ensured. The water in the filter cartridge 1 is primarily filtered by the filter screen 7 and then treated by the filter element 8, and the treated water flows out from the shunt pipe 5. In the process of stirring the water in the filter cylinder 1, the surface of the filter screen 7 is cleaned, so that the filter screen 7 can be further prevented from being blocked by impurities. In addition, the water inlet pipe 2 is periodically closed, the brush plate 11 rotates along with the rotating rod 9, and the generated centrifugal force enables impurities to enter the slag discharge pipe 13 and be discharged from the slag discharge pipe 13, so that the filter screen 7 is cleaned. The activated carbon layer 15 is arranged for removing the peculiar smell in the water, further ensuring the water treatment effect and conveniently replacing the activated carbon layer 15. The invention has simple structure and can be widely popularized and used.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a filtration system water-collecting device, which is characterized in that, includes cartridge filter (1), the top of cartridge filter (1) is provided with inlet tube (2), be provided with on inlet tube (2) open-close valve (3), the bottom of cartridge filter (1) is provided with connecting pipe (4) of level form, the bottom of connecting pipe (4) is provided with a plurality of shunt tubes (5), be provided with flow divider (6) on shunt tubes (5), be provided with level form filter screen (7) in cartridge filter (1), be provided with in cartridge filter (1) and be located filter core (8) of filter screen (7) below, the top center department of cartridge filter (1) rotates and is provided with dwang (9) that extend to cartridge filter (1) inside, the bottom of dwang (9) is provided with rotor plate (10), the bottom of rotor plate (10) is provided with brush board (11), the top of cartridge filter (1) is provided with the drive dwang (9) pivoted driving piece (12), the side of cartridge filter (1) is provided with scum pipe (13), the bottom of scum pipe (13) with the top of filter screen (7) links up, be provided with slag discharging valve (14) on scum pipe (13).
2. A filtering system water collecting device according to claim 1, characterized in that an adsorption layer is arranged in the filtering cylinder (1) between the filtering net (7) and the filtering core (8), and the adsorption layer is used for adsorbing the peculiar smell in the water.
3. A filter system water collecting device according to claim 2, c h a r a c t e r i z e d in that the adsorbent layer is an activated carbon layer (15).
4. A water collecting device of filtering system according to claim 3, characterized in that a mounting housing (16) is provided in the filtering cylinder (1), through holes are provided on the upper and lower sides of the mounting housing (16), and the activated carbon layer (15) is mounted in the mounting housing (16).
5. A water collecting device of filtering system according to claim 4, characterized in that the side of the filter cartridge (1) is opened with a mounting opening (17), the mounting housing (16) is inserted into the filter cartridge (1) from the mounting opening (17), a slide rail (18) slidably engaged with the mounting housing (16) is arranged in the filter cartridge (1), and the mounting housing (16) is detachably mounted on the filter cartridge (1).
6. A filter system water collecting device according to any of the claims 1-5, characterized in that the filter cartridge (1) comprises a cylinder body (20) with flanges, a top cover (21) and a bottom cover (22), both the top cover (21) and the bottom cover (22) are detachably mounted on the cylinder body (20), the bottom cover (22) is provided with a plurality of positioning plates (23) for positioning with the filter element (8), the cylinder body (20) is provided with a mounting plate (24) for positioning with the filter element (8), and the filter element (8) is arranged between the positioning plates (23) and the mounting plate (24) in a sealing manner.
7. A filter system water collecting device according to claim 1, c h a r a c t e r i z e d in that the drive member (12) is an electric motor.
8. A filtering system water collecting device according to claim 1, characterized in that the top of the connecting pipe (4) is provided with a vent (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111403913.4A CN114230029A (en) | 2021-11-24 | 2021-11-24 | Water collecting device of filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111403913.4A CN114230029A (en) | 2021-11-24 | 2021-11-24 | Water collecting device of filtering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114230029A true CN114230029A (en) | 2022-03-25 |
Family
ID=80750816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111403913.4A Pending CN114230029A (en) | 2021-11-24 | 2021-11-24 | Water collecting device of filtering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114230029A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344766A (en) * | 2017-07-22 | 2017-11-14 | 芜湖乐透净水科技有限公司 | A kind of dismantled and assembled high efficiency water purifier of multisection type |
| CN209567880U (en) * | 2018-11-09 | 2019-11-01 | 深圳市飞映技术有限公司 | A kind of reverse osmosis commercial water purifier of multiple, self-adjusting section |
| CN110975389A (en) * | 2019-12-16 | 2020-04-10 | 浙江巨丰管业有限公司 | Warm up installation with water-collecting device that has filtering capability |
| CN211595218U (en) * | 2018-05-14 | 2020-09-29 | 成都工业学院 | Outdoor emergency drinking kettle |
| CN212091136U (en) * | 2020-02-28 | 2020-12-08 | 惠安麦田圈里科技有限公司 | Chemical sewage filtration equipment that environmental protection was used |
-
2021
- 2021-11-24 CN CN202111403913.4A patent/CN114230029A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344766A (en) * | 2017-07-22 | 2017-11-14 | 芜湖乐透净水科技有限公司 | A kind of dismantled and assembled high efficiency water purifier of multisection type |
| CN211595218U (en) * | 2018-05-14 | 2020-09-29 | 成都工业学院 | Outdoor emergency drinking kettle |
| CN209567880U (en) * | 2018-11-09 | 2019-11-01 | 深圳市飞映技术有限公司 | A kind of reverse osmosis commercial water purifier of multiple, self-adjusting section |
| CN110975389A (en) * | 2019-12-16 | 2020-04-10 | 浙江巨丰管业有限公司 | Warm up installation with water-collecting device that has filtering capability |
| CN212091136U (en) * | 2020-02-28 | 2020-12-08 | 惠安麦田圈里科技有限公司 | Chemical sewage filtration equipment that environmental protection was used |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211486693U (en) | High-efficient chemical sewage treatment plant | |
| CN210448281U (en) | Water purification device suitable for ground source heat pump system | |
| CN112681498B (en) | Solid-liquid shunting type integrated sewage lifting pump station | |
| CN114230029A (en) | Water collecting device of filtering system | |
| CN217746163U (en) | Multistage sedimentation type wastewater treatment device | |
| CN217323634U (en) | Full-automatic sewage treatment device | |
| CN116253397A (en) | Sewage treatment device and method by anti-pollution film | |
| CN215886401U (en) | Special high-efficient sediment sludge discharging device of sewage treatment | |
| CN214457239U (en) | Sewage treatment device convenient to clearance filter screen board | |
| CN115300993A (en) | Cutting fluid filtering and separating equipment | |
| CN213375464U (en) | Sewage treatment pipeline | |
| CN212223807U (en) | Water surface floater collecting device convenient to clean | |
| CN208389699U (en) | Spraying dedusting device | |
| CN111085045A (en) | Sludge treatment device in sewage | |
| CN220142831U (en) | Mud discharging device for sewage treatment | |
| CN215462244U (en) | Slag skimming well of secondary sedimentation tank | |
| CN216918812U (en) | High-efficient filter is used in mining | |
| CN218106888U (en) | Sewage treatment equipment convenient to remove | |
| CN219449469U (en) | MBR sewage treatment device | |
| CN218923974U (en) | Electroplating solution filtration equipment | |
| CN220633313U (en) | Auxiliary filter | |
| CN216755557U (en) | Automatic control device for water treatment | |
| CN214050755U (en) | Pressure relief type secondary water tank | |
| CN217312214U (en) | High-efficient precision filter | |
| CN217988541U (en) | Filter for producing chemical copper electroplating solution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |