CN106830201B - Automatic concentrated water discharge system of water purifier and water purifier - Google Patents
Automatic concentrated water discharge system of water purifier and water purifier Download PDFInfo
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- CN106830201B CN106830201B CN201710240089.2A CN201710240089A CN106830201B CN 106830201 B CN106830201 B CN 106830201B CN 201710240089 A CN201710240089 A CN 201710240089A CN 106830201 B CN106830201 B CN 106830201B
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- purified water
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/003—Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
An automatic concentrated water discharge system of a water purifier comprises a water quality detection unit and a concentrated water controllable discharge unit; when the water quality detection unit detects that the TDS value of the purified water is too high, the concentrated water controllable discharge unit closes the water purifying pipe, opens the second discharge pipeline, discharges the purified water with the TDS value exceeding the preset value into the concentrated water pipe, and when the water quality detection unit detects that the TDS value of the purified water does not exceed the preset value, the concentrated water controllable discharge unit closes the second discharge pipeline, opens the purified water pipe and allows the purified water with the TDS value reaching the standard to be discharged to the next unit. According to the invention, whether the purified water flowing out of the RO filter element of the water purifier meets the requirement or not after the machine is stopped and restarted is detected, so that the problem that stored water with an excessively high TDS value in the RO filter element enters a next-stage filter unit or is directly drunk by a user when the water purifier restarts to produce water is avoided, and the user experience is influenced.
Description
Technical Field
The invention relates to the technical field of water purification, in particular to an automatic concentrated water discharge system of a water purifier and the water purifier.
Background
The world health organization prescribes that the TDS (total solid matter dissolved in water) value of human drinking water is not more than 50ppm, whereas the current TDS value of tap water prescribed in china is not more than 1000ppm, so the current tap water in china is not suitable for direct drinking and can be drunk after purification by a water purifier or a filter. With the increasing serious pollution of water, the domestic tap water suppliers are exposed frequently, and water purifiers are popularized in a large area and enter thousands of households.
Among them, the RO water purifier is accepted and favored by the vast users due to its outstanding characteristics. The purified water prepared by the RO water purifier is fresher, more sanitary and safer than barreled water, and the RO water purifier has very wide application: the water-saving type household appliance can be drunk, can be boiled and drunk, can also be used for small household appliances such as a humidifier, a steam iron, a beauty instrument and the like, and has the outstanding characteristic that the household appliances can not be scaled any more; pure water is used for cooking, so that the cooking is more sanitary and delicious; the pure water bath can remove impurities on the skin, moisten the skin and play a role in natural beauty.
However, in the existing water purifier for purifying water by adopting the RO filter element, after stopping water production, the RO filter element is in a water storage state, raw water with higher TDS is arranged outside the RO membrane of the RO filter element for storing water, purified water with lower TDS is arranged inside the RO membrane, the desalination rate of the RO reverse osmosis membrane cannot reach 100%, and under the condition that no external pressure exists, permeation phenomenon can be generated due to the fact that the TDS concentration difference exists inside and outside the RO reverse osmosis membrane, namely, water molecules are transferred from low concentration to high concentration, and the TDS value of purified water in the RO membrane can be increased along with the increase of time. When the water purifier runs again, the RO filter core filters out new purified water, and part of the purified water with the increased TDS value can be taken into the water, so that the TDS value of the previous water can be increased, and the water can be reduced only after a few tens of seconds.
Because the general purifier is not provided with the detection device, a user does not know that the TDS value of purified water filtered by the RO membrane is increased due to long-time placement when using the purifier, and especially when the water consumption of the user is small each time, the purified water which does not reach the preset TDS value is repeatedly used by the user when the water purification mechanism is not long, so that the water consumption safety of the user cannot be ensured, and meanwhile, the TDS of the purified water is displayed to be higher, so that the use experience of the user is influenced.
Therefore, in order to solve the above-mentioned problems, it is necessary to design a system that can automatically drain the concentrated water with the TDS value exceeding the predetermined value in the RO filter element and the post-stage purified water outlet pipeline before the water is reused, so as to improve the purified water that avoids users drinking the TDS value that does not meet the set requirement and enhance the physical examination of users.
Disclosure of Invention
In view of the above, the invention provides an automatic concentrated water discharge system of a water purifier and the water purifier, which aim to solve the problem that after filtration of an RO filter element, water with too high TDS value in a water purifying pipeline at the rear section of an RO membrane is stopped for a period of time and is directly used by a user.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a purifier dense water automatic discharge system, the purifier includes RO reverse osmosis subassembly, water purification pipe and the dense water pipe of built-in RO filter core;
the RO reverse osmosis assembly is provided with a purified water outlet and a concentrated water outlet, the purified water outlet of the RO reverse osmosis assembly is connected with a purified water pipe, the concentrated water outlet of the RO reverse osmosis assembly is connected with the concentrated water pipe through a first discharge pipeline, and the automatic discharge system comprises a water quality detection unit and a concentrated water controllable discharge unit;
the water quality detection unit is arranged on the water purifying pipe and is used for detecting the TDS value of purified water discharged after being filtered by the RO filter element;
the concentrated water controllable discharge unit is arranged on the water purifying pipe and is connected with the concentrated water pipe through a second discharge pipeline;
wherein the water quality detection unit is arranged at the upstream position of the concentrated water controllable discharge unit;
when the water quality detection unit detects that the TDS value of the purified water is too high, the concentrated water controllable discharge unit closes the water purifying pipe, opens the second discharge pipeline, discharges the purified water with the TDS value exceeding the preset value into the concentrated water pipe, and when the water quality detection unit detects that the TDS value of the purified water does not exceed the preset value, the concentrated water controllable discharge unit closes the second discharge pipeline, opens the purified water pipe and allows the purified water with the TDS value reaching the standard to be discharged to the next unit.
Preferably, the water purifying device further comprises a rear water purifying component, wherein the rear water purifying component is provided with a water purifying inlet, and the water purifying inlet is connected with the water purifying pipe.
Preferably, the water quality detection unit comprises a clean water TDS probe.
Preferably, the concentrated water controllable discharging unit comprises an electromagnetic valve and a one-way valve; the electromagnetic valve is arranged on the water purifying pipe, the one-way valve is arranged on the second discharge pipeline, the second discharge pipeline is connected with the water purifying pipe, and the connecting node is between the water purifying TDS probe and the one-way valve.
Preferably, the electromagnetic valve and the one-way valve are one-open-one-close or one-close-one-open in the water purifying process.
Preferably, the concentrated water controllable discharge unit comprises an electromagnetic shunt three-way valve; and the inlet of the electromagnetic shunt three-way valve is connected with the water purifying pipe, and the outlet of the electromagnetic shunt three-way valve is connected with the second discharge pipeline and the water inlet of the rear water purifying component respectively.
Preferably, the electromagnetic split three-way valve has two outlets and only one outlet opened in the water purifying process.
Preferably, the first discharge pipe is further provided with a rich water valve.
Preferably, the rear water purifying assembly is further provided with a water purifying outlet which is directly connected with the water purifying tank or the water intake through a pipeline.
In order to achieve the above purpose, the invention also provides a water purifier, which comprises an RO reverse osmosis assembly with an RO filter element, a rear water purification assembly and a concentrate pipe; the RO reverse osmosis assembly is provided with a purified water outlet and a concentrated water outlet, and the rear water purification assembly is provided with a purified water inlet; the pure water outlet of the RO reverse osmosis component is connected with the pure water inlet of the rear-mounted pure water component through a pure water pipe; the concentrated water outlet of the RO reverse osmosis component is connected with a concentrated water pipe through a pipeline; comprising the automatic concentrated water discharge system of the water purifier.
In order to achieve the above purpose, the invention also provides an automatic discharging method of the concentrated water of the water purifier, which comprises the following steps,
the method comprises the steps that TDS value detection is carried out on purified water discharged from a purified water outlet in an RO reverse osmosis assembly in the water purifier through a water quality detection unit;
if the water quality detection unit detects that the TDS value of the purified water is too high, the concentrated water controllable discharge unit closes the purified water pipe, opens the second discharge pipeline, discharges the purified water with the too high TDS value into the concentrated water pipe, and discharges the purified water together with the concentrated water flowing out of the RO reverse osmosis assembly through the concentrated water valve;
if the water quality detection unit detects that the TDS value of the purified water does not exceed the standard, the concentrated water controllable discharge unit closes the second discharge pipeline, opens the purified water pipe, discharges the purified water with the TDS value reaching the standard into the post-positioned purified water component for secondary filtration, and directly communicates with the purified water tank or the water intake after filtration is completed.
Compared with the prior art, the automatic concentrated water discharge system for the water purifier provided by the invention has the advantages that whether the purified water flowing out of the RO filter element of the water purifier after the water purifier is stopped and restarted is detected to be in accordance with the requirements or not through the purified water TDS probe of the water quality detection unit, if so, the purified water is discharged into the next stage of the water purification unit, if not, the purified water is converged with the concentrated water discharged by the RO reverse osmosis assembly and then is discharged into the concentrated water pipe, so that the phenomenon that the water purifying effect of the water purifier is influenced because the stored water with the TDS value exceeding the preset value in the RO filter element enters the next stage of the filtration unit or is directly drunk by a user when the water purifier restarts to produce water is avoided.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a system for automatically discharging concentrated water of a water purifier according to the present invention;
fig. 2 is a flow chart of a method for automatically discharging concentrated water of a water purifier.
Reference numerals and description of the components referred to in the drawings:
10. an RO reverse osmosis module; 11. a purified water outlet; 12. a concentrated water outlet;
20. a water purifying pipe; 30. a concentrate pipe; 40. a first discharge line; 50. a concentrate valve;
60. a water quality detection unit; 61. a purified water TDS probe;
70. a concentrated water controllable discharge unit; 71. an electromagnetic valve; 72. a one-way valve;
80. a second discharge line;
90. a rear water purifying component; 91. and a purified water inlet.
Detailed Description
At present, the RO filter element is adopted to purify the water quality of the water purifier, after stopping water production, the RO filter element is in a water storage state, the RO membrane of the RO filter element for storing water is externally provided with raw water with higher TDS, the RO membrane is internally provided with purified water with lower TDS, the desalination rate of the RO reverse osmosis membrane cannot reach 100 percent, and under the condition of no external pressure, the permeation phenomenon can be generated due to the existence of the TDS concentration difference between the inside and the outside of the RO reverse osmosis membrane, namely, water molecules are transferred from low concentration to high concentration, and the TDS value of purified water in the RO membrane can be increased along with the increase of time. When the water purifier runs again, the RO filter core filters out new purified water, and part of the purified water with the increased TDS value can be taken into account, so that the TDS value of the previous water can be increased, and the water can be reduced after a period of time.
Because the general purifier does not have the detection device, the user does not know that the TDS value of the purified water filtered by the RO membrane is increased due to long-time placement when in use, and especially when the water consumption of the user is little each time, the water purification mechanism is not long in water time, the user can be caused to repeatedly use the purified water which does not reach the preset TDS value, the water consumption safety of the user can not be ensured, and meanwhile, the TDS value of the purified water is too high, so that the use experience of the user is reduced.
Therefore, in order to solve the above-mentioned problems, it is necessary to design a system that can automatically drain the concentrated water with the TDS value exceeding the predetermined value in the RO filter element and the post-stage purified water outlet pipeline before the water is reused, so as to improve the purified water that avoids users drinking the TDS value that does not meet the set requirement and enhance the physical examination of users.
The technical scheme of the present invention will be clearly and completely described in the following detailed description. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, which is a schematic view of a structure of a first embodiment of an automatic concentrated water discharging system for a water purifier according to the present invention, the water purifier using the automatic discharging system includes an RO reverse osmosis module 10 having an RO cartridge built therein, a water purifying pipe 20, and a concentrated water pipe 30. The RO reverse osmosis assembly 10 has a clean water outlet 11 and a concentrate outlet 12. The purified water outlet 11 of the RO reverse osmosis unit 10 is connected to a purified water pipe 20. The concentrate outlet 12 of the RO reverse osmosis module 10 is connected to the concentrate line 30 via a first discharge line 40, and a concentrate valve 50 is further provided on the first discharge line 40. Alternatively, the rich water valve 50 may be a rich water ratio valve.
The automatic discharge system includes a water quality detection unit 60, a concentrate controllable discharge unit 70.
The water quality detection unit 60 is disposed on the water purifying pipe 20 for detecting the TDS value of the discharged purified water in the RO cartridge. Optionally, the water quality detection unit 60 includes a clean water TDS probe 61.
The concentrate controllable discharge unit 70 is provided on the water purifying pipe 20 and is connected to the concentrate pipe 30 through a second discharge pipe 80, wherein the water quality detecting unit 60 is provided at a position upstream of the concentrate controllable discharge unit 70.
Optionally, the automatic concentrated water discharging system of the water purifier further comprises a rear water purifying component 90, and a water inlet 91 of the rear water purifying component is connected with the water purifying pipe 20.
Alternatively, the concentrated water controllable discharging unit 70 includes a solenoid valve 71 and a check valve 72, the solenoid valve 71 is provided on the water purifying pipe 20, and the check valve 72 is provided on the second discharging pipe 80, both of which are maintained in an open-close or a closed-open state during the water purifying process. The check valve 72 may be a hydraulic check valve or an electromagnetic check valve capable of controlling on-off.
In addition, in order to simplify the structure, in still another embodiment of the automatic concentrated water discharging system for a water purifier according to the present invention, the concentrated water controllable discharging unit 70 may be an electromagnetic split three-way valve, an inlet of which is connected to the water purifying pipe 20, and an outlet of which is connected to the second discharging pipe 80 and the purified water inlet 91 of the rear water purifying assembly 90, respectively. And during the water purifying process, only one and only two outlets of the electromagnetic shunt three-way valve are opened (not shown). The concentrate controllable discharge unit 70 is not limited to the above two structures, as long as it can ensure that the filter pipeline and the discharge pipeline are not opened at the same time, and suitable structural components may be specifically selected according to practical situations.
When the water quality detection unit 60 detects that the TDS value of the purified water is too high, the concentrated water controllable discharge unit 70 closes the purified water pipe 20, opens the second discharge pipeline 80, discharges the purified water with the too high TDS value into the concentrated water pipe 30, and when the water quality detection unit 60 detects that the TDS value of the purified water is not out of standard, the concentrated water controllable discharge unit 70 closes the second discharge pipeline 80, opens the purified water pipe 20, and discharges the purified water with the TDS value up to standard into the post-purification assembly 90 for re-filtration.
The specific working principle is as follows:
firstly, after the water purifier is stopped for a period of time, a certain amount of purified water is stored in an RO filter element in the RO reverse osmosis component 10, because raw water with higher TDS is arranged outside the RO filter element storing water, purified water with lower TDS is arranged in the filter element, under the condition that a TDS concentration difference exists inside and outside a membrane, the TDS value of the purified water in the RO filter element can be increased along with time due to the osmotic effect, when the water purifier is started again, the purified water can flow out from a purified water outlet 11 of the RO reverse osmosis component 10, and concentrated water is discharged from a concentrated water outlet 12 of the RO reverse osmosis component 10 after normal raw water filtration is finished. When the stored purified water enters the purified water pipe 20, the purified water TDS probe 61 of the water quality detecting unit 60 detects the TDS value of the purified water, and the limit standard of the TDS value is set to 30ppm. When the purified water TDS probe 61 detects that the value of the TDS value of the purified water stored in the RO cartridge is higher than 30ppm, the solenoid valve 71 in the concentrate controllable discharge unit 70 is closed, the check valve 72 is opened, and the purified water having an excessively high TDS value is guided to the concentrate pipe 30 to be discharged; when the purified water TDS probe 61 detects that the value of the TDS value of the purified water stored in the RO cartridge is not higher than 30ppm, the solenoid valve 71 in the concentrated water controllable discharge unit 70 is opened, the check valve 72 is closed, the purified water whose TDS value is not exceeded is discharged into the post-purification unit 90 to be filtered and purified again, and finally discharged from the purified water outlet of the post-purification unit 90 to be directly drunk by a user or stored in the purified water tank.
In addition, in other embodiments of the automatic concentrated water discharging system for a water purifier of the present invention, the purified water with too high TDS value may be introduced into the upstream of the RO reverse osmosis module 10 through the recovery line again, so as to save water.
The invention also provides a water purifier which uses the RO filter element inner concentrated water automatic discharging system.
The invention also provides an automatic discharging method of the concentrated water in the RO filter element of the water purifier, which can be used after the structure of the existing RO water purifier is optimized and adjusted, and comprises the following specific steps,
s1, detecting a TDS value of purified water discharged from a purified water outlet in an RO reverse osmosis assembly in a water purifier through a water quality detection unit;
s2, if the water quality detection unit detects that the TDS value of the purified water is too high, the concentrated water controllable discharge unit closes the filtering pipeline, opens the discharge pipeline, discharges the purified water with the TDS value exceeding a preset value into the concentrated water pipe, and discharges the purified water together with the concentrated water flowing out of the RO reverse osmosis assembly through the concentrated water valve;
and S3, if the water quality detection unit detects that the TDS value of the purified water does not exceed the standard, the concentrated water controllable discharge unit closes the discharge pipeline, opens the filtering pipeline, discharges the purified water with the TDS value reaching the standard into the rear water purification assembly for secondary filtration, and directly communicates with the water purification tank or the water intake after the filtration is completed.
In summary, the automatic concentrated water discharge system provided by the invention can effectively detect the TDS value of stored water in the RO filter element, can directly discharge purified water with an excessively high TDS value, and can avoid entering the next stage of filtering unit or being directly drunk by a user, so that the purified water with the TDS value which does not meet the setting requirement is prevented from being drunk by the user, and the physical examination of the user is enhanced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. The water purifier comprises an RO reverse osmosis assembly, a water purifying pipe and a concentrate pipe, wherein an RO filter element is arranged in the RO reverse osmosis assembly; RO reverse osmosis subassembly has water purification export and dense water export, RO reverse osmosis subassembly's water purification export links to each other with the water purification pipe, RO reverse osmosis subassembly's dense water export links to each other with dense water pipe through first discharge line, its characterized in that: the system also comprises a concentrated water automatic discharge system, wherein the concentrated water automatic discharge system comprises a water quality detection unit, a concentrated water controllable discharge unit and a rear water purification assembly;
the water quality detection unit is arranged on the water purifying pipe and is used for detecting the TDS value of purified water discharged after being filtered by the RO filter element;
the concentrated water controllable discharge unit is arranged on the water purifying pipe and is connected with the concentrated water pipe through a second discharge pipeline, the concentrated water controllable discharge unit comprises an electromagnetic diversion three-way valve, an inlet of the electromagnetic diversion three-way valve is connected with the water purifying pipe, an outlet of the electromagnetic diversion three-way valve is respectively connected with the second discharge pipeline and a water inlet of the rear water purifying component, and two outlets of the electromagnetic diversion three-way valve are opened only in the water purifying process;
the water quality detection unit and the concentrated water controllable discharge unit are arranged between the water purifying outlet of the RO reverse osmosis assembly and the water purifying inlet of the rear water purifying assembly, and the water purifying outlet is directly connected with a water purifying tank or a water intake through a pipeline;
wherein the water quality detection unit is arranged at the upstream position of the concentrated water controllable discharge unit;
when the water quality detection unit on the water purifying pipe detects that the TDS value of the purified water exceeds a preset value, an outlet of the electromagnetic shunt three-way valve in the concentrated water controllable discharge unit, which is communicated with the rear water purifying component, is closed to close the water purifying pipe, and an outlet of the electromagnetic shunt three-way valve, which is communicated with the second discharge pipeline, is opened to open the second discharge pipeline, and the purified water with the TDS value exceeding the preset value is discharged into the concentrated water pipe; when the water quality detection unit on the water purifying pipe detects that the TDS value of the purified water does not exceed the preset value, the outlet of the electromagnetic diversion three-way valve in the concentrated water controllable discharge unit, which is communicated with the second discharge pipeline, is closed to close the second discharge pipeline, the outlet of the electromagnetic diversion three-way valve, which is communicated with the rear water purifying component, is opened to open the water purifying pipe, the purified water with the TDS value reaching the standard is allowed to be discharged into the rear water purifying component for filtering again, and the purified water is discharged from the purified water outlet of the rear water purifying component to be directly drunk by a user or stored in the water purifying tank.
2. A water purifier as recited in claim 1, wherein: the water quality detection unit comprises a purified water TDS probe.
3. A water purifier as recited in claim 1, wherein: and a concentrate valve is also arranged on the first discharge pipeline.
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| CN201710240089.2A CN106830201B (en) | 2017-04-13 | 2017-04-13 | Automatic concentrated water discharge system of water purifier and water purifier |
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| CN201710240089.2A CN106830201B (en) | 2017-04-13 | 2017-04-13 | Automatic concentrated water discharge system of water purifier and water purifier |
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| CN108793457B (en) * | 2018-05-25 | 2021-06-18 | 珠海格力电器股份有限公司 | Water purification system, water purification method and device |
| CN108726638B (en) * | 2018-07-02 | 2023-07-21 | 珠海格力电器股份有限公司 | Water treatment system, water purifying and drinking machine and control method of water treatment system |
| CN108821462B (en) * | 2018-07-25 | 2024-02-09 | 珠海格力电器股份有限公司 | Fluid filtering device and water purifier |
| EP3611134B1 (en) * | 2018-08-16 | 2023-01-04 | Riprup Company S.A. | Improved beverage dispenser and associated method for suppression of germ formation |
| CN109384268A (en) * | 2018-12-17 | 2019-02-26 | 广东万家乐燃气具有限公司 | A kind of intelligence discharging device and water purification system |
| CN110937656A (en) * | 2019-10-17 | 2020-03-31 | 珠海市江河海水处理科技股份有限公司 | Full-automatic electroplating nickel wastewater zero-discharge equipment and operation method thereof |
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| CN106335970A (en) * | 2015-07-17 | 2017-01-18 | 上海圣满康实业有限公司 | On-line TDS detection device in direct-drinking water machine, and direct-drinking water machine |
| CN106277391A (en) * | 2016-05-31 | 2017-01-04 | 艾欧史密斯(中国)热水器有限公司 | Water purifier and process for preparing water thereof |
| CN206940490U (en) * | 2017-04-13 | 2018-01-30 | 莱克电气绿能科技(苏州)有限公司 | A kind of water purifier concentrated water automatic discharge system and water purifier |
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