CN115212616A - Active carbon filter device - Google Patents
Active carbon filter device Download PDFInfo
- Publication number
- CN115212616A CN115212616A CN202210873637.6A CN202210873637A CN115212616A CN 115212616 A CN115212616 A CN 115212616A CN 202210873637 A CN202210873637 A CN 202210873637A CN 115212616 A CN115212616 A CN 115212616A
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- CN
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- Prior art keywords
- cavity
- hole
- liquid inlet
- water
- transverse
- 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.)
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000002347 injection Methods 0.000 claims abstract description 35
- 239000007924 injection Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 238000004140 cleaning Methods 0.000 claims abstract description 18
- 238000009825 accumulation Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009298 carbon filtering Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 14
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 238000005406 washing Methods 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910052716 thallium Inorganic materials 0.000 description 2
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
- B01D24/4642—Counter-current flushing, e.g. by air with valves, e.g. rotating valves
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
Abstract
An active carbon filtering device comprises a shell, a three-way valve, an air valve, a bracket, active carbon, a limiting ring, a main body, a cleaning port, a liquid inlet, an upper cover, an air hole, a liquid inlet hole, a slot, an inserting plate, a plug cover, a square hole, a transverse plate, a vertical cavity, a transverse cavity and an L-shaped sliding block; the water injection device comprises a shell, a water injection cavity, a water accumulation cavity, a water injection cavity and a main body, wherein a support is arranged in the shell, the water accumulation cavity is arranged below the support, the activated carbon is supported above the support, a limiting ring is arranged above the activated carbon, the water injection cavity is arranged above the limiting ring, and the main body is arranged above the water injection cavity; the casing left side is connected with the three-way valve, the casing right side is connected with the pneumatic valve, the height of three-way valve and pneumatic valve all with ponding chamber corresponds, the right wall of casing has seted up the feed liquor hole.
Description
Technical Field
The invention relates to the field of water treatment, in particular to an active carbon filtering device.
Background
Water consumption is high in the process of mining engineering development, such as underground rock drilling and dust removal of ores and dust removal of open-air ores, and a large amount of water resources are needed for ore grinding and flotation of ores. However, in northwest regions where water resources are scarce, water resources are at a premium. In order to solve the problem, in the mine development, the development of external water sources is reduced as much as possible, and the treatment and recycling of the production wastewater are realized, which is particularly important for the construction and continuous development of green mines. The method is characterized in that copper ores are produced in a northwest mining area, water resources are saved, waste water after ore washing is used for reclaimed water recycling after precipitation treatment, and a tailing pond of the mining area is a largest reclaimed water recycling pond of a plant area and is also a final discharge port of the waste water of the mining area. However, the wastewater contains high-concentration heavy metal pollutants such as copper, thallium, arsenic, cadmium and the like, and the heavy metal pollutants are difficult to remove to reach the standard by using a common neutralization precipitation method, so that the local ecological environment system is greatly influenced if the heavy metal pollutants are discharged into rivers.
Thus purifying the water by a filtration system such as activated carbon. With the increase of the carbon age, the function of purifying water quality by the carbon filter is gradually weakened. Various contaminants accumulate on the activated carbon, occupying pores and surface functional groups in the activated carbon that dominate the adsorption. The adsorption of the activated carbon to the metal is a dynamic balance process, and when the water body environment has sudden change or the carbon filter tank runs improperly, metal pollutants such as thallium in the water body are easily desorbed from the carbon filter tank, thereby bringing negative effects to the water production safety. Currently, there are physical and chemical purification methods for activated carbon for such problems.
In actual practice, there are the following problems:
1. active carbon filter equipment among the prior art bears more function and includes: the water quality filtration needs import and export, and the former process is the ozone process, has ozone to get into the active carbon pond and needs discharge, and the cleaner washing of active carbon, the aqueous vapor of active carbon is jointly washd to and wash the extra discharge tube way in back, so many pipelines, every pipeline sets up solitary break-make structure and needs a lot of connections, bearing structure very complicated huge structural system, and spare part is in disorder moreover.
2. The bottom of the container in the prior art is generally provided with only one discharge port, and the inlet is generally arranged at a high position, so the space at the bottom is not fully utilized; and for the activated carbon pool, the problem of how to be compatible of the bottom of the activated carbon pool and the bottom of the activated carbon pool is to discharge clean water to a clean water pool and waste water after cleaning.
3. In the active carbon filtering device in the prior art, the previous process is an ozone process, and ozone enters an active carbon pool and needs to be discharged, however, in actual work, pipelines connected with the front end and the rear end are generally not detached when the active carbon is cleaned; because the ozone of the previous process can be always communicated with the activated carbon tank and influenced by the front end, the ozone can only be deposited in the activated carbon tank and the pipeline and cannot rapidly enter the air environment for natural decomposition. And if a special exhaust hole is formed, extra cost is required.
4. In the water-gas combined washing in the prior art, water flow is only simply filled, the mobility is not strong, the washing capacity is weaker, and single gas impact only impacts a single point, so that the integral impact washing significance is not large.
5. The sliding block in the prior art can only realize sliding and cannot realize better positioning.
6. In the active carbon pool in the prior art, each part has respective connection relation, the disassembly and the maintenance are both complex, and the cost is high.
Disclosure of Invention
In order to overcome the above problems, the present invention proposes a solution to solve the above problems simultaneously.
The technical scheme adopted by the invention for solving the technical problem is as follows: an active carbon filtering device comprises a shell, a three-way valve, an air valve, a bracket, active carbon, a limiting ring, a main body, a cleaning port, a liquid inlet, an upper cover, an air hole, a liquid inlet hole, a slot, a plug board, a plug cover, a square hole, a transverse plate, a vertical cavity, a transverse cavity and an L-shaped sliding block;
the water injection device comprises a shell, a water injection cavity, a water accumulation cavity, active carbon, a limiting ring, a water injection cavity and a main body, wherein a support is arranged in the shell, the water accumulation cavity is arranged below the support, the active carbon is supported above the support, the limiting ring is arranged above the active carbon, the water injection cavity is arranged above the limiting ring, and the main body is arranged above the water injection cavity; the left side of the shell is connected with the three-way valve, the right side of the shell is connected with the air valve, the three-way valve and the air valve are both in height corresponding to the water accumulation cavity, and the right wall of the shell is provided with the liquid inlet hole;
the upper cover is arranged above the main body, the square hole, the transverse cavity, the vertical cavity, the liquid inlet and the cleaning opening are arranged in the main body, the square hole is communicated with the transverse cavity, the transverse cavity is communicated with the vertical cavity, the L-shaped sliding block comprises a transverse plate and a vertical plate which are integrally connected, the transverse plate can move left and right in the transverse cavity, the vertical plate is accommodated in the vertical cavity, the transverse plate can block the square hole, the vertical plate can block the liquid inlet hole, the cleaning opening is communicated with the square hole and the water injection cavity, and the liquid inlet can be communicated with the liquid inlet hole and the water injection cavity;
a water port is formed in the left wall of the shell, the plug cover is detachably connected to the water port, the water port is communicated with the square hole after the plug cover is detached, the upper cover is provided with the air hole, the air hole is detachably connected with the exhaust cover, the exhaust cover is provided with a gas through hole, and the gas through hole is communicated with the square hole when the vertical plate blocks the liquid inlet hole; the upper cover is provided with a connecting part which is detachably connected with the inserting plate, when the L-shaped sliding block moves to enable the vertical plate to block the liquid inlet hole, the inserting plate can be taken down from the connecting part and inserted into the slot arranged on the upper cover, and further enters the transverse cavity to abut against the left end of the transverse plate so as to position the L-shaped sliding block.
Preferably, the connecting part is a hook part.
Preferably, the insert plate is provided with a groove for inserting the hook part.
Preferably, the connecting part is a groove for placing the insert plate.
Preferably, the number of the gas through holes is multiple.
Preferably, the exhaust cover is in threaded connection with the air hole.
Preferably, the plug cover is in threaded connection with the nozzle.
Preferably, the three-way valve is a three-way ball valve.
Preferably, a sealing element is arranged on the vertical plate.
Preferably, the gas valve comprises a threaded interface.
The invention has the beneficial effects that:
1. according to the 1 st point provided by the background technology, through an L-shaped sliding block, a vertical plate of the L-shaped sliding block blocks a liquid inlet hole of a previous process, and a transverse plate blocks an ozone discharge hole and an air injection hole, independent power driving equipment is additionally saved, the position of the L-shaped sliding block can be adjusted by opening a quick connection type upper cover, the cleaning frequency is low, the trouble of disassembly is avoided, even the L-shaped sliding block can be moved by means of a tool through the air injection hole, opening and closing of a plurality of holes are achieved through one part, and therefore a plurality of independent opening and closing devices are not used, and the cost is reduced.
2. To the 2 nd point that the background art provided, set up a three-way valve, a pneumatic valve at the bottom of container, switch clear water through the three-way valve and discharge with waste water, exert gas in the container through the pneumatic valve of bottom, when aqueous vapor jointly washs, gas can upwards emerge from the aquatic of bottom to wash the active carbon.
3. According to the 3 rd point provided by the background technology, the ozone discharge hole, the water injection hole and the gas injection hole share one section of square hole, when the L-shaped sliding plate is moved away, ozone is discharged from the ozone discharge hole, then the plug cover is detached, the cleaning solution is connected to the exposed hole and is injected with the cleaning solution, the cleaning solution is soaked for a period of time, the discharged liquid after soaking is subjected to water-gas combined flushing, clear water is injected into the corresponding hole of the plug cover, gas is injected into the gas injection hole, which is equivalent to the dual-purpose water hole (clear water/cleaning solution) and dual-purpose gas hole (gas injection/ozone exhaust).
4. To the 4 th point that the background art provided, because one section square hole of water injection hole and gas injection hole sharing, the two is close to and makes things convenient for the gas jet further to break up the loose rivers of whereabouts state for the water diffusibility is undulant stronger more does benefit to the washing, makes the aqueous vapor fuse more abundant, and the gas injection can make rivers produce certain velocity of flow and flow direction simultaneously, thereby rivers/aqueous vapor erode the active carbon.
5. Aiming at the 5 th point of the background technology, when the L-shaped sliding block slides to block the liquid inlet hole of the previous process, the plugboard is inserted into the groove on the upper cover so as to block the transverse plate of the L-shaped sliding block to realize positioning, and the plugboard can be connected with the hook part arranged on the upper cover through the groove of the plugboard after the plugboard is disassembled to realize fixation, thereby being convenient for taking and disassembling.
6. To background's 6 th point, through a large amount of quick connect structure like the mortise-tenon joint, the maintenance is dismantled fast to the screw thread realization, because the design of 1 st point, a plurality of demands of opening and close are realized through an L shape slider, only need dismantle the picture peg when dismantling, the upper cover, plug lid etc. can dismantle L type slider, open the upper cover and can switch between filtration state and clean state through removing L shape slider promptly, and the maintenance space is very big moreover, it is very convenient to dismantle, the maintenance degree of difficulty and cost have been reduced.
Note: the foregoing designs are not sequential, each of which provides a distinct and significant advance in the present invention over the prior art.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
FIG. 1 is a schematic sectional view of the filtration process of the apparatus of the present invention
FIG. 2 is a schematic sectional view of the ozone discharging step of the apparatus of the present invention
FIG. 3 is a schematic sectional view of the apparatus of the present invention during the soaking and cleaning process and the combined water and gas flushing process
FIG. 4 is a schematic top view of the cover of the present invention
FIG. 5 is a schematic top view of the main body section at A in FIG. 2 according to the present invention
In the figures, the reference numerals are as follows:
1. the device comprises a shell 2, a three-way valve 3, an air valve 4, a bracket 5, active carbon 6, a limiting ring 7, a main body 8, a cleaning opening 9, a liquid inlet 10, an upper cover 11, an air hole 12, a liquid inlet hole 13, a slot 14, a plug board 15, a plug cover 16, a square hole 17, a transverse plate 18, a vertical plate 19, a vertical cavity 20, a hook part 21 and a transverse cavity
Detailed Description
As shown in the figure: an active carbon filtering device comprises a shell, a three-way valve, an air valve, a bracket, active carbon, a limiting ring, a main body, a cleaning port, a liquid inlet, an upper cover, an air hole, a liquid inlet hole, a slot, a plug board, a plug cover, a square hole, a transverse plate, a vertical cavity, a transverse cavity and an L-shaped sliding block;
the water injection device comprises a shell, a water injection cavity, a water accumulation cavity, active carbon, a limiting ring, a water injection cavity and a main body, wherein a support is arranged in the shell, the water accumulation cavity is arranged below the support, the active carbon is supported above the support, the limiting ring is arranged above the active carbon, the water injection cavity is arranged above the limiting ring, and the main body is arranged above the water injection cavity; the left side of the shell is connected with the three-way valve, the right side of the shell is connected with the air valve, the three-way valve and the air valve are both in height corresponding to the water accumulation cavity, and the right wall of the shell is provided with the liquid inlet hole;
the upper cover is arranged above the main body, the square hole, the transverse cavity, the vertical cavity, the liquid inlet and the cleaning opening are arranged in the main body, the square hole is communicated with the transverse cavity, the transverse cavity is communicated with the vertical cavity, the L-shaped sliding block comprises a transverse plate and a vertical plate which are integrally connected, the transverse plate can move left and right in the transverse cavity, the vertical plate is accommodated in the vertical cavity, the transverse plate can block the square hole, the vertical plate can block the liquid inlet hole, the cleaning opening is communicated with the square hole and the water injection cavity, and the liquid inlet can be communicated with the liquid inlet hole and the water injection cavity;
a water port is formed in the left wall of the shell, the plug cover is detachably connected to the water port, the water port is communicated with the square hole after the plug cover is detached, the upper cover is provided with the air hole, the air hole is detachably connected with the exhaust cover, the exhaust cover is provided with a gas through hole, and the gas through hole is communicated with the square hole when the vertical plate blocks the liquid inlet hole; the upper cover is provided with a connecting part which is detachably connected with the inserting plate, when the L-shaped sliding block moves to enable the vertical plate to block the liquid inlet hole, the inserting plate can be taken down from the connecting part and inserted into the slot arranged on the upper cover, and further enters the transverse cavity to abut against the left end of the transverse plate so as to position the L-shaped sliding block.
As shown in the figure: the connecting part is a hook part. The insert plate is provided with a groove for the hook part to insert. The connecting part is a groove for placing the inserting plate. The number of the gas through holes is multiple. The exhaust cover is in threaded connection with the air hole. The plug cover is in threaded connection with the water port. The three-way valve is a three-way ball valve. And a sealing element is arranged on the vertical plate. The gas valve includes a threaded interface.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An active carbon filter equipment which characterized in that: the device comprises a shell, the three-way valve, an air valve, a bracket, active carbon, a limiting ring, a main body, a cleaning opening, a liquid inlet, an upper cover, an air hole, a liquid inlet hole, a slot, an inserting plate, a plug cover, a square hole, a transverse plate, a vertical cavity, a transverse cavity and an L-shaped sliding block;
the water injection device comprises a shell, a water injection cavity, a water accumulation cavity, active carbon, a limiting ring, a water injection cavity and a main body, wherein a support is arranged in the shell, the water accumulation cavity is arranged below the support, the active carbon is supported above the support, the limiting ring is arranged above the active carbon, the water injection cavity is arranged above the limiting ring, and the main body is arranged above the water injection cavity; the left side of the shell is connected with the three-way valve, the right side of the shell is connected with the air valve, the three-way valve and the air valve are both in height corresponding to the water accumulation cavity, and the right wall of the shell is provided with the liquid inlet hole;
the upper cover is arranged above the main body, the square hole, the transverse cavity, the vertical cavity, the liquid inlet and the cleaning opening are arranged in the main body, the square hole is communicated with the transverse cavity, the transverse cavity is communicated with the vertical cavity, the L-shaped sliding block comprises a transverse plate and a vertical plate which are integrally connected, the transverse plate can move left and right in the transverse cavity, the vertical plate is accommodated in the vertical cavity, the transverse plate can block the square hole, the vertical plate can block the liquid inlet hole, the cleaning opening is communicated with the square hole and the water injection cavity, and the liquid inlet can be communicated with the liquid inlet hole and the water injection cavity;
a water port is formed in the left wall of the shell, the plug cover is detachably connected to the water port, the water port is communicated with the square hole after the plug cover is detached, the upper cover is provided with the air hole, the air hole is detachably connected with the exhaust cover, the exhaust cover is provided with an air through hole, and the air through hole is communicated with the square hole when the vertical plate blocks the liquid inlet hole; the upper cover is provided with a connecting part which is detachably connected with the inserting plate, when the L-shaped sliding block moves to enable the vertical plate to block the liquid inlet hole, the inserting plate can be taken down from the connecting part and inserted into the inserting groove arranged on the upper cover, and further enters the transverse cavity to abut against the left end of the transverse plate so as to position the L-shaped sliding block.
2. The activated carbon filter device of claim 1, wherein: the connecting part is a hook part.
3. An activated carbon filter device according to claim 2, wherein: the insert plate is provided with a groove for the hook part to insert.
4. The activated carbon filter device of claim 1, wherein: the connecting part is a groove for placing the inserting plate.
5. The activated carbon filter device of claim 1, wherein: the number of the gas through holes is multiple.
6. The activated carbon filter device of claim 1, wherein: the exhaust cover is in threaded connection with the air hole.
7. The activated carbon filter device of claim 1, wherein: the plug cover is in threaded connection with the water port.
8. The activated carbon filter device of claim 1, wherein: the three-way valve is a three-way ball valve.
9. The activated carbon filter device of claim 1, wherein: and a sealing element is arranged on the vertical plate.
10. The activated carbon filter device of claim 1, wherein: the gas valve includes a threaded interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210873637.6A CN115212616B (en) | 2022-07-21 | 2022-07-21 | Active carbon filter equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210873637.6A CN115212616B (en) | 2022-07-21 | 2022-07-21 | Active carbon filter equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115212616A true CN115212616A (en) | 2022-10-21 |
| CN115212616B CN115212616B (en) | 2023-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210873637.6A Active CN115212616B (en) | 2022-07-21 | 2022-07-21 | Active carbon filter equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115212616B (en) |
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| CN114522470A (en) * | 2022-02-24 | 2022-05-24 | 杭州吉宝传动设备有限公司 | Step-by-step purification control system for cutting fluid of numerical control machine tool and design method |
-
2022
- 2022-07-21 CN CN202210873637.6A patent/CN115212616B/en active Active
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|---|---|---|---|---|
| US20050218050A1 (en) * | 2004-04-05 | 2005-10-06 | Christopher Choi | Flushable water changing base and multi-tasking caps |
| CN101618355A (en) * | 2008-05-13 | 2010-01-06 | 熊津豪威株式会社 | Regeneration tank for water softeners |
| WO2011107031A1 (en) * | 2010-03-05 | 2011-09-09 | Chau Yiuchau | Sealing structure, fluid treatment unit, fluid treatment device and manual switching mechanism therefor |
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| Publication number | Publication date |
|---|---|
| CN115212616B (en) | 2023-11-17 |
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