CN112850813B - Water purification equipment and installation method thereof - Google Patents
Water purification equipment and installation method thereof Download PDFInfo
- Publication number
- CN112850813B CN112850813B CN202110024349.9A CN202110024349A CN112850813B CN 112850813 B CN112850813 B CN 112850813B CN 202110024349 A CN202110024349 A CN 202110024349A CN 112850813 B CN112850813 B CN 112850813B
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- Prior art keywords
- water
- water purification
- shell
- detection mechanism
- flow channel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 264
- 238000009434 installation Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000000746 purification Methods 0.000 title claims description 95
- 230000007246 mechanism Effects 0.000 claims abstract description 99
- 238000001514 detection method Methods 0.000 claims abstract description 94
- 239000000654 additive Substances 0.000 claims abstract description 47
- 230000000996 additive effect Effects 0.000 claims abstract description 47
- 239000008213 purified water Substances 0.000 claims description 15
- 239000000049 pigment Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/10—Location of water treatment or water treatment device as part of a potable water dispenser, e.g. for use in homes or offices
Abstract
The invention provides a water purifying device and an installation method thereof, wherein the water purifying device comprises a shell, a water purifying flow channel is formed in the shell, a water outlet 21 is formed at the first end of the water purifying flow channel on the shell, and a water inlet 22 is formed at the second end of the water purifying flow channel on the shell; and a detection mechanism. According to the water purifying equipment and the installation method thereof, the detection mechanism is connected in parallel on the water purifying flow channel, the detection mechanism is used for sending out the alarm signal when the water purifying equipment is reversely installed, so that an installer and/or a user are reminded to reinstall the water purifying equipment, the problem of reverse installation of the equipment in the prior art is solved, the shell and the color additive are arranged, the water can be dyed by the color additive when the equipment is reversely installed, and therefore whether the water purifying equipment is reversely installed or not can be directly judged by observing the color of the discharged water, and meanwhile, the problem of false alarm caused by the fact that the water is not dyed by the color additive when the water purifying equipment is correctly installed can be guaranteed by the two one-way circulation mechanisms.
Description
Technical Field
The invention relates to the technical field of treatment equipment, in particular to water purification equipment and an installation method thereof.
Background
The existing water purifier or water dispenser has the situation that the device or equipment is installed reversely, when the device is installed reversely, the filtered clean water flows out, but the sewage generated after the filtered water flows out, and the impurities in the water purifier or water dispenser, which are filtered or purified, are conveyed to a user, so that the user can drink the sewage for a long time without knowing the user, and the body of the user is damaged.
Disclosure of Invention
The invention provides a water purifying device capable of ensuring correct installation direction and an installation method thereof, which are used for solving the problem that the drinking of users can damage the body due to misdrinking caused by the fact that water purifying devices such as a water purifier or a water dispenser and the like are installed in the prior art.
A water purification apparatus comprising:
the water purifier comprises a shell, a water purifying channel is formed in the shell, a water outlet is formed in the shell at the first end of the water purifying channel, and a water inlet is formed in the shell at the second end of the water purifying channel;
the detection mechanism is arranged inside the shell and is communicated with the purified water flow channel in parallel, when the water outlet is communicated with an external water source, the detection mechanism sends out an alarm signal, and when the water inlet is communicated with the external water source, the detection mechanism does not send out the alarm signal.
The water purification unit comprises at least two water purification units, wherein a first flow channel is formed in each water purification unit, all the first flow channels are sequentially connected in series to form the water purification flow channel, and at least one first flow channel is connected with the detection mechanism in parallel.
When the number of the detection mechanisms is at least two, each detection mechanism sends out a detection parameter, and all the detection parameters form the alarm signal.
The detection mechanism comprises a color additive, when water from an external water source enters the shell from the water outlet, the water entering the shell is in contact with the color additive and is dyed by the color additive, and the alarm signal is sent out in the form of dyed water.
The water purification unit comprises at least two water purification units, wherein a first flow channel is formed in each water purification unit, all the first flow channels are sequentially connected in series to form the water purification flow channel, at least one first flow channel is connected in parallel with the detection mechanism, and when the number of the detection mechanisms is at least two, the color of the color additive in each detection mechanism is different.
The detection mechanism further comprises a shell, the color additive is arranged in the shell and is arranged along the water flow direction in the water purification flow channel, a first opening and a second opening are formed in the shell, a first one-way circulation mechanism is arranged at the first opening, a second one-way circulation mechanism is arranged at the second opening, the circulation direction of the first one-way circulation mechanism is pointed by the inside of the shell to the outside of the shell, and the circulation direction of the second one-way circulation mechanism is pointed by the outside of the shell to the inside of the shell.
The first one-way circulation mechanism and the second one-way circulation mechanism are both one-way valves.
The color additive includes a water-soluble pigment.
The installation method of the water purifying equipment comprises the following steps:
connecting one end of the purified water flow channel to an external water source, and acquiring whether the detection mechanism sends out an alarm signal or not;
and if the detection mechanism sends out an alarm signal, determining that the water purifying equipment is installed wrongly.
The water purification unit includes two at least water purification units, is formed with first flow channel in each water purification unit, and all first flow channel connects in series in proper order and constitutes the water purification runner, and at least one first flow channel is last to have parallelly connected detection mechanism, when detection mechanism's quantity is at least two, each detection mechanism sends one alarm signal, if detection mechanism sends alarm signal then confirm still include in the water purification unit installation mistake:
and acquiring the types of detection parameters in the alarm signals, and determining the installation error of the corresponding water purification unit according to the detection parameters.
The detection mechanism comprises a color additive, when water from an external water source enters the shell from the water outlet, the water entering the shell contacts with the color additive and is dyed by the color additive, the alarm signal is sent out in the form of dyed water, and the detection mechanism further comprises the following steps of:
and detecting the water outlet color of the water purifying equipment, and judging whether the detection mechanism sends out an alarm signal according to the water outlet color.
The water purification unit includes two at least water purification units, is formed with first flow channel in each water purification unit, and all first flow channel connects in series in proper order constitutes the water purification runner, when detection mechanism's quantity is at least two, each among the detection mechanism the colour of colour additive is all inequality, if detection mechanism sends alarm signal then confirms still include in the water purification unit installation mistake:
presetting the corresponding relation between the effluent color and the water purification unit with wrong installation;
and acquiring the color of the discharged water, and determining the water purification unit with the wrong installation according to the corresponding relation.
According to the water purifying equipment and the installation method thereof, the detection mechanism is connected in parallel on the water purifying flow channel, the detection mechanism is used for sending out the alarm signal when the water purifying equipment is reversely installed, so that an installer and/or a user are reminded to reinstall the water purifying equipment, the problem of reverse installation of the equipment in the prior art is solved, the shell and the color additive are arranged, the water can be dyed by the color additive when the equipment is reversely installed, and therefore whether the water purifying equipment is reversely installed or not can be directly judged by observing the color of the discharged water, and meanwhile, the problem of false alarm caused by the fact that the water is not dyed by the color additive when the water purifying equipment is correctly installed can be guaranteed by the two one-way circulation mechanisms.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a water purifying apparatus according to an embodiment of a water purifying apparatus and an installation method thereof of the present invention.
Fig. 2 is a flow chart of an installation method of an embodiment of the water purifying apparatus and the installation method thereof of the present invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
1. A housing; 2. a purified water flow passage; 21. a water outlet; 22. a water inlet; 3. a detection mechanism; 4. a water purification unit; 31. a color additive; 32. a housing; 33. a first one-way circulation mechanism; 34. a second one-way flow mechanism.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 and 2, a water purifying apparatus of the present invention includes: the water purifier comprises a shell 1, wherein a purified water flow passage 2 is formed inside the shell 1, a water outlet 21 is formed at a first end of the purified water flow passage 2 on the shell 1, and a water inlet 22 is formed at a second end of the purified water flow passage 2 on the shell 1; the detection mechanism 3 is arranged inside the shell 1, the detection mechanism 3 is communicated with the water purification flow channel 2 in parallel, when the water outlet 21 is communicated with an external water source, the detection mechanism 3 sends out an alarm signal, when the water inlet 22 is communicated with the external water source, the detection mechanism 3 does not send out the alarm signal, when an installer installs the water purification equipment, the problem that the water outlet 21 is communicated with the external water source may exist, the state is a state that the water purification equipment (the water purification flow channel 2) is installed reversely, at the moment, sewage treated by the water purification equipment is supplied to a user through the water inlet 22, and the user is damaged, therefore, the detection mechanism 3 is utilized to detect the end part communicated with the external water source of the water purification equipment, namely, the direction of water flow in the water purification flow channel 2 from the outside is detected, and when the installation is correct, the alarm signal is not sent out, and when the installation is wrong, an alarm signal is sent to remind an installer and/or a user of the need of reinstallation.
Preferably, the detection mechanism is connected in parallel with a portion of the clean water flow passage close to the water outlet 21.
The water purifying device comprises at least two water purifying units 4, a first flow channel is formed in each water purifying unit 4, all the first flow channels are sequentially connected in series to form the purified water flow channel 2, and the detection mechanism 3 is connected in parallel to at least one of the first flow channels, the existing water purification equipment generally performs two or even more purification and filtration on the water of an external water source, so that different purification and filtration effects can be realized by adopting a corresponding number of water purification units 4, each water purifying unit 4 is independently installed in the water purifying flow passage 2, and each water purifying unit 4 has a problem of installation error, so that according to the importance of the water purifying unit 4 or other condition factors, the detection mechanism 3 is provided separately for the water purification unit 4, thereby avoiding other problems caused by reinstallation of the water purification unit 4 correctly installed.
When the number of the detection mechanisms 3 is at least two, each detection mechanism 3 sends out a detection parameter, all the detection parameters form the alarm signal, each detection parameter corresponds to a water purification unit 4 installation error, when a certain detection parameter is obtained in the alarm signal, the water purification unit 4 corresponding to the detection parameter can be directly determined, and when at least two detection parameters are obtained in the alarm signal, the corresponding water purification unit 4 installation error can be determined according to the two detection parameters.
The detection mechanism 3 comprises a color additive 31, when water from an external water source enters the housing 1 from the water outlet 21, the water entering the housing 1 contacts with the color additive 31 and is dyed by the color additive 31, the alarm signal is sent out in the form of dyed water, when the water purifying device is installed correctly, the water cannot contact with the color additive 31 and is dyed, finally, the water flowing out of the water purifying device is colorless, when the water purifying device is installed in a grass house, the water is dyed by the color additive 31, finally, the water flowing out of the water purifying device has a color, and when the water has the color, the detection mechanism 3 is determined to send out the alarm signal.
The water purifying device comprises at least two water purifying units 4, a first flow channel is formed in each water purifying unit 4, all the first flow channels are sequentially connected in series to form the purified water flow channel 2, the detecting mechanism 3 is connected to at least one first flow channel in parallel, when the number of the detecting means 3 is at least two, the color of the color additive 31 in each of the detecting means 3 is different, the corresponding water purification unit 4 is determined according to the color of the outlet water of the final water purification device, for example, the color of the color additive 31 comprises red and blue, when the color of the outlet water is red, the water purification unit 4 corresponding to red is installed wrongly, when the color of the discharged water is blue, the water purification unit 4 corresponding to blue is installed wrongly, when the color of the discharged water is purple, the water purifying equipment corresponding to the red and the water purifying equipment corresponding to the blue are both installed wrongly.
The detection mechanism 3 further comprises a shell 32, the color additive 31 is arranged in the shell 32, along the water flow direction in the water purification flow channel 2, a first opening and a second opening are arranged on the shell 32, a first one-way circulation mechanism 33 is arranged at the first opening, a second one-way circulation mechanism 34 is arranged at the second opening, the circulation direction of the first one-way circulation mechanism 33 is directed to the outside of the shell 32 from the inside of the shell 32, the circulation direction of the second one-way circulation mechanism 34 is directed to the inside of the shell 32 from the outside of the shell 32, the first one-way circulation mechanism 33 and the second one-way circulation mechanism 34 are utilized to ensure that only when the water purification equipment is installed in error, the water from an external water source can enter the inside of the shell 32 to be mixed with the color additive 31, and can smoothly flow out of the detection mechanism 3 and then flow into the water purification flow channel 2, finally, the color of the water outlet of the water purifying device is changed.
The first one-way flow mechanism 33 and the second one-way flow mechanism 34 are both one-way valves.
The color additive 31 includes a water-soluble pigment.
The installation method of the water purifying equipment comprises the following steps:
connecting one end of the purified water flow channel 2 to an external water source, and acquiring whether the detection mechanism 3 sends out an alarm signal or not;
and if the detection mechanism 3 sends out an alarm signal, determining that the water purifying equipment is installed wrongly.
The water purification unit includes two at least water purification units 4, is formed with first flow channel in each water purification unit 4, and all first flow channel connects in series in proper order and constitutes water purification runner 2, and at least one first flow channel is last to have parallelly connected detection mechanism 3, when the quantity of detection mechanism 3 is at least two, each detection mechanism 3 sends out one the alarm signal, if detection mechanism 3 sends out alarm signal then confirm still include in the water purification unit installation mistake:
and acquiring the types of detection parameters in the alarm signals, and determining the installation error of the corresponding water purification unit 4 according to the detection parameters.
The detecting mechanism 3 includes a color additive 31, when water from an external water source enters the interior of the housing 1 through the water outlet 21, the water entering the interior of the housing 1 contacts with the color additive 31 and is dyed by the color additive 31, the alarm signal is sent in the form of dyed water, and the method further includes, in acquiring whether the detecting mechanism 3 sends the alarm signal:
and detecting the water outlet color of the water purifying equipment, and judging whether the detection mechanism 3 sends out an alarm signal according to the water outlet color.
The water purification unit includes two at least water purification units 4, is formed with first flow channel in each water purification unit 4, and all first flow channel connects in series in proper order and constitutes water purification runner 2, when detection mechanism 3's quantity is at least two, each in the detection mechanism 3 the colour of colour additive 31 is all inequality, if detection mechanism 3 sends alarm signal then confirms still include in the water purification unit installation mistake:
presetting a corresponding relation between the effluent color and the water purification unit 4 with wrong installation, if the effluent color comprises red, blue and purple, one water purification unit 4 is provided with a detection mechanism 3 of a red color additive 31, and the other water purification unit 4 is provided with a detection mechanism 3 of a blue color additive 31, then the effluent color is red and corresponds to the water purification unit 4 provided with the red color additive 31, the effluent color is blue and corresponds to the water purification unit 4 provided with the blue color additive 31, and the effluent color is purple and corresponds to the water purification unit 4 provided with the red color additive 31 and the water purification unit 4 provided with the blue color additive 31;
and acquiring the color of the discharged water, and determining the water purification unit 4 with wrong installation according to the corresponding relation.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A water purification apparatus, comprising:
the water purifier comprises a shell (1), wherein a purified water flow channel (2) is formed inside the shell (1), a water outlet (21) is formed at the first end of the purified water flow channel (2) on the shell (1), and a water inlet (22) is formed at the second end of the purified water flow channel (2) on the shell (1);
the detection mechanism (3) is arranged inside the shell (1), the detection mechanism (3) is communicated with the purified water flow channel (2) in parallel, when the water outlet (21) is communicated with an external water source, the detection mechanism (3) sends out an alarm signal, and when the water inlet (22) is communicated with the external water source, the detection mechanism (3) does not send out the alarm signal;
the detection mechanism (3) comprises a color additive (31), when water from an external water source enters the shell (1) from the water outlet (21), the water entering the shell (1) is contacted with the color additive (31) and is dyed by the color additive (31), and the alarm signal is sent out in the form of dyed water;
detection mechanism (3) still includes shell (32), color additive (31) set up in shell (32), follow water flow direction in water purification runner (2), be provided with first opening and second opening on shell (32), just first opening part is provided with first one-way circulation mechanism (33), the second opening part is provided with one-way circulation mechanism of second (34), the circulation direction of first one-way circulation mechanism (33) by the inside of shell (32) is directional the outside of shell (32), the circulation direction of one-way circulation mechanism of second (34) by the outside of shell (32) is directional the inside of shell (32).
2. The water purification apparatus according to claim 1, wherein the water purification apparatus comprises at least two water purification units (4), each water purification unit (4) is formed with a first flow channel, all the first flow channels are connected in series in sequence to form the water purification flow channel (2), and at least one of the first flow channels is connected in parallel with the detection mechanism (3).
3. Water purification apparatus according to claim 2, wherein each of said detection means (3) issues a detection parameter when the number of said detection means (3) is at least two, all said detection parameters constituting said alarm signal.
4. The water purification apparatus according to claim 1, comprising at least two water purification units (4), wherein a first flow channel is formed in each water purification unit (4), all the first flow channels are sequentially connected in series to form the water purification flow channel (2), and the detection mechanism (3) is connected in parallel to at least one of the first flow channels, and when the number of the detection mechanisms (3) is at least two, the color of the color additive (31) in each detection mechanism (3) is different.
5. Water purification apparatus according to claim 1, wherein the first one-way flow-through mechanism (33) and the second one-way flow-through mechanism (34) are both one-way valves.
6. Water purification apparatus according to claim 1, wherein the colour additive (31) comprises a water-soluble pigment.
7. A method of installing a water purification apparatus as claimed in any one of claims 1 to 6, comprising:
connecting one end of the purified water flow channel (2) to an external water source, and acquiring whether the detection mechanism (3) sends out an alarm signal or not;
and if the detection mechanism (3) sends out an alarm signal, determining that the water purifying equipment is installed wrongly.
8. The installation method according to claim 7, wherein the water purification apparatus comprises at least two water purification units (4), each water purification unit (4) is formed with a first flow channel, all the first flow channels are connected in series in turn to form the purified water flow channel (2), and at least one of the first flow channels is connected in parallel with the detection mechanism (3), when the number of the detection mechanism (3) is at least two, each detection mechanism (3) sends out one of the alarm signals, and if the detection mechanism (3) sends out an alarm signal, the method further comprises the steps of:
and acquiring the types of detection parameters in the alarm signals, and determining the installation error of the corresponding water purification unit (4) according to the detection parameters.
9. The mounting method according to claim 7, wherein the detecting means (3) includes a color additive (31), when water from an external water source enters the interior of the housing (1) from the water outlet (21), the water entering the interior of the housing (1) contacts the color additive (31) and is colored by the color additive (31), the alarm signal is emitted in the form of the colored water, and the method further comprises, in acquiring whether the detecting means (3) emits the alarm signal:
and detecting the water outlet color of the water purifying equipment, and judging whether the detection mechanism (3) sends out an alarm signal according to the water outlet color.
10. The installation method according to claim 9, wherein the water purification apparatus comprises at least two water purification units (4), each water purification unit (4) is formed with a first flow channel therein, and all the first flow channels are connected in series in turn to form the water purification flow channel (2), when the number of the detection means (3) is at least two, the color of the color additive (31) in each detection means (3) is different, and the determination of the installation error of the water purification apparatus if the detection means (3) sends out the alarm signal further comprises:
presetting the corresponding relation between the effluent color and the water purification unit (4) with wrong installation;
and obtaining the color of the discharged water, and determining the water purification unit (4) with wrong installation according to the corresponding relation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110024349.9A CN112850813B (en) | 2021-01-08 | 2021-01-08 | Water purification equipment and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110024349.9A CN112850813B (en) | 2021-01-08 | 2021-01-08 | Water purification equipment and installation method thereof |
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| Publication Number | Publication Date |
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| CN112850813A CN112850813A (en) | 2021-05-28 |
| CN112850813B true CN112850813B (en) | 2022-03-18 |
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| CN202110024349.9A Active CN112850813B (en) | 2021-01-08 | 2021-01-08 | Water purification equipment and installation method thereof |
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| GB8821240D0 (en) * | 1988-09-09 | 1988-10-12 | Process Scient Innovations | Filter assembly & cartridge therefor |
| JP2007138568A (en) * | 2005-11-18 | 2007-06-07 | Shin Caterpillar Mitsubishi Ltd | Erroneous assembling prevention structure of filter |
| CN201848153U (en) * | 2010-11-19 | 2011-06-01 | 王道根 | Automatic filter element exchange prompt device of water purifying equipment |
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| CN210103518U (en) * | 2019-05-30 | 2020-02-21 | 广州水杯子分质供水工程有限公司 | Reminding device is changed to single membrane filter core of water purification unit |
| CN210135948U (en) * | 2019-07-18 | 2020-03-10 | 清华大学 | User side regenerated water pipeline misconnection identification and prevention system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060032806A1 (en) * | 2004-08-16 | 2006-02-16 | Parker Mark A | Apparatus to filter water |
| US7615151B2 (en) * | 2007-01-25 | 2009-11-10 | Cummins Filtration Ip Inc. | Filter with installation integrity and magnetic flow-control |
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2021
- 2021-01-08 CN CN202110024349.9A patent/CN112850813B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8821240D0 (en) * | 1988-09-09 | 1988-10-12 | Process Scient Innovations | Filter assembly & cartridge therefor |
| JP2007138568A (en) * | 2005-11-18 | 2007-06-07 | Shin Caterpillar Mitsubishi Ltd | Erroneous assembling prevention structure of filter |
| CN201848153U (en) * | 2010-11-19 | 2011-06-01 | 王道根 | Automatic filter element exchange prompt device of water purifying equipment |
| CN208869338U (en) * | 2018-09-10 | 2019-05-17 | 浙江沁园水处理科技有限公司 | A kind of water purifying device of more water quality indicator prompts |
| CN210103518U (en) * | 2019-05-30 | 2020-02-21 | 广州水杯子分质供水工程有限公司 | Reminding device is changed to single membrane filter core of water purification unit |
| CN210135948U (en) * | 2019-07-18 | 2020-03-10 | 清华大学 | User side regenerated water pipeline misconnection identification and prevention system |
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| CN112850813A (en) | 2021-05-28 |
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