CN205258154U - Intelligence reverse osmosis water purification machine - Google Patents
Intelligence reverse osmosis water purification machine Download PDFInfo
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- CN205258154U CN205258154U CN201520976738.1U CN201520976738U CN205258154U CN 205258154 U CN205258154 U CN 205258154U CN 201520976738 U CN201520976738 U CN 201520976738U CN 205258154 U CN205258154 U CN 205258154U
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Abstract
The utility model relates to an intelligence reverse osmosis water purification machine, include: low pressure anti -osmosis filter core is with a water piping connection for the purification obtains the drinking water, still include: multistage composite filter element, its output is connected with low pressure anti -osmosis filter core's input for the preliminary clearning running water, leading filter, its output is connected with multistage composite filter element's input, the input with advance water piping connection for big suspended particle in the filtration running water, intelligence filter core management and control device is connected with multistage composite filter element and low pressure anti -osmosis filter core respectively for measure and show business turn over water quality of water, and multistage composite filter element and low pressure anti -osmosis filter core's residual life. Compared with the prior art, the utility model discloses leading filter can filter the big suspended particle in the running water, has lengthened filter element service life, and intelligent filter core management and control device shows to business turn over water quality of water and filter core residual life that the user can know the use proportion and surplus filter capacity of a water quality of water circumstances and filter core.
Description
Technical field
The utility model relates to a kind of water purifier, especially relates to a kind of Intelligent reverse osmosis water purifier.
Background technology
Industrial wastewater pollution, agrochemical pollute and pollute urban domestic wastewater, cause most water pollution in the world serious, have aggravated the contradiction of drinking water shortage of resources. Traditional water treatment method, can not ensure to provide colory drinking water, and in municipal water supply, also exist high-rise cistern water supply, long twice pollution apart from running water feed-line etc., potential iron rust is caused in capital, the problems such as incrustation scale and microorganism, therefore, for addressing the above problem, various types of water purifiers arise at the historic moment, and wherein, have to be a kind ofly widely used taking counter-infiltration as the water purifier of core filtering technique.
But traditional reverse osmosis water purifier needs booster pump and Pressured water tank, structural strength to equipment and stability have caused challenge undoubtedly, also there are at present some water purifiers to adopt low pressure reverse osmosis water purifier, for example Chinese patent CN103755056B discloses a kind of reverse osmosis purified water all-in-one, include housing, wherein, housing center is vertically provided with central tube, on this central tube, offered water through hole, on housing, the position of corresponding central tube offers delivery port, also offers water inlet and discharge outlet on housing; Central tube periphery is wound with low pressure RO film, and this low pressure RO film is provided with the sintering activity carbon rod of loop configuration, and the periphery of sintering activity carbon rod is provided with the cotton layer of a PP, is provided with the cotton layer of the 2nd PP in it week. This low pressure reverse osmosis water purifier adopts low pressure RO film, without also using under electrical environment, and adopts the cotton layer of a PP, sintering activity carbon rod, cotton layer of the 2nd PP and low pressure RO film to be centered around successively the structure of encircling outside central tube, simplifies the structure.
But, before above-mentioned low pressure reverse osmosis water purifier mesolow RO film, only there are PP cotton and active carbon, preliminary clearning deficiency, in the time that influent quality is poor, during especially by larger particulate pollutant, low pressure RO film, even PP is cotton and the active carbon life-span is shorter, moreover it cannot be according to the actual service condition of filter core, filter core remaining life parameter is provided, thereby causes water purifier also to occur " secondary pollution " phenomenon.
Utility model content
The purpose of this utility model is exactly to provide a kind of Intelligent reverse osmosis water purifier in order to overcome the defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of Intelligent reverse osmosis water purifier, comprising:
Low pressure reverse osmosis filter core, is connected with outlet pipe, obtains drinking water for purifying;
Also comprise:
Multistage composite filter core, its output is connected with the input of low pressure reverse osmosis filter core, for preliminary clearning running water;
Fore filter, its output is connected with the input of multistage composite filter core, and input is connected with water inlet pipe, for filtering running water bulky grain suspension;
Intelligence filter core control device, is connected with multistage composite filter core and low pressure reverse osmosis filter core respectively, for measuring and showing Inlet and outlet water water quality, and the residual life of multistage composite filter core and low pressure reverse osmosis filter core.
Described multistage composite filter core comprises the cotton filter core of the first order PP setting gradually, second level CTO filter core, third level T33 filter core and the cotton filter core of fourth stage PP, and between adjacent filter core, is equipped with separation stainless steel filtering net.
The extruded activated carbon granular size of described second level CTO filter core is 10～50 orders, specific area 500～2000m2/g。
The activated carbon granule size of described third level T33 filter core is 10～50 orders, specific area 1500～2000m2/g。
Described water purifier also comprises storage assembly, described fore filter comprises support, and be located at filter screen and the power facility on support, before described power facility is located at filter screen, and be connected with storage assembly, and in the time that water inlet pipe end hydraulic pressure reaches setting pressure, work and institute's electricity is sent to storage assembly.
Described setting pressure is 0.5Mpa.
Described water purifier is provided with the casing of water stream channel in also comprising, described multistage composite filter core is connected with casing by buckle with low pressure reverse osmosis filter core, and sets gradually along water (flow) direction in described water stream channel.
Described casing is provided with the detection probe of leaking; in described water stream channel, be provided with leak stop; described intelligent filter core control device is connected with leak detection probe and leak stop respectively, and in the time that the detection probe of leaking detects that casing leaks, controls leak stop work to cut off water stream channel.
Described intelligent filter core control device comprises:
Water inlet TDS detector, for detection of the TDS value of water inlet;
Water outlet TDS detector, for detection of the TDS value of water outlet;
Controller, is connected with water inlet TDS detector and water outlet TDS detector respectively, for receiving the detection data of water inlet TDS detector and water outlet TDS detector, and calculates the residual life of each filter core in conjunction with discharge data according to detection data;
Display, is connected with controller, for showing the TDS value of Inlet and outlet water and the residual life of each filter core;
Wireless communication module, is connected with controller, for sending the TDS value of Inlet and outlet water and the residual life of each filter core to portable computing device, and receives the control instruction of being sent by portable computing device.
Described water purifier also comprises combustion gas detection probe, Smoke Detection probe and oil smoke detection probe, described combustion gas detection probe, Smoke Detection probe are all connected with intelligent filter core control device with oil smoke detection probe, and the data that detect are sent to intelligent filter core control device, shown by intelligent filter core control device.
Compared with prior art, the utlity model has following advantage:
1) before low pressure reverse osmosis filter core, be provided with multistage composite filter core and fore filter, wherein fore filter can filter out the bulky grain suspension in running water, reduce the pressure of multistage composite filter core and low pressure reverse osmosis filter core, and then extend its life-span, intelligence filter core control device shows Inlet and outlet water water quality and filter core residual life, user can know usage ratio and the residue filter capacity of effluent quality situation and filter core in time, save filter element replacing expense, the ability of purified tap water is large, and in maximum filter core life cycle, water purification amount can reach 30 tons.
2) arrange when second level CTO filter core and third level T33 filter core, can, in effectively controlling the breeding of bacterium and overcoming common active carbon filter core Water flow-path shortage point, increase the service life, reduce replacement frequency.
3) second level CTO filter core and third level T33 filter core adopt identical activated carbon granule, can reduce costs, and the choosing value of the specific area of the activated carbon granule of third level T33 filter core is slightly larger than the activated carbon granule of second level CTO filter core, is conducive to the unobstructed of current.
4) the mechanical energy generating of fore filter utilization water inlet can reduce hydraulic pressure, protection filter screen and filter core below in saving the energy.
5) setting of 0.5MPa, can reduce the requirement to filter screen, extends its life-span.
6) Inlet and outlet water water quality adopts TDS value to characterize, and science is convenient.
7) low pressure reverse osmosis membrane technology, the minimum 0.1MPa that reaches of operating pressure, without traditional booster pump, cost saving and power consumption.
8) large flow low pressure reverse osmosis membrane technology, without traditional Pressured water tank, cost saving, and avoided the secondary bacterial pollution problem of Pressured water tank.
Brief description of the drawings
Fig. 1 is the system intention of Intelligent reverse osmosis water purifier;
Fig. 2 is that filter core connects intention;
Fig. 3 is the combining structure schematic diagram of multistage composite filter core;
Fig. 4 is the structural representation of combustion gas, smog, oil smoke probe and buzzing loudspeaker;
Fig. 5 is Intelligent reverse osmosis water purifier case Facad structure schematic diagram;
Fig. 6 is the structural representation of intelligent filter core control device;
Fig. 7 is the compound water purifier remote signal transmission of Intelligent reverse osmosis schematic diagram;
Wherein: 1, water inlet pipe, 2, fore filter, 3, storage assembly, 4, leak stop, 5, casing, 6, multistage composite filter core, 7, low pressure reverse osmosis membrane cartridge, 8, gas monitoring probe, 9, smoke monitoring probe, 10, cooking fume probe, 11, intelligence filter core control device, 12, buzzing loudspeaker, 13, antenna, 14, water leakage monitoring probe, 15, outlet pipe, 16, family expenses WIFI, 17, portable computing device, 18, server, 19, wireless signal, 61, the cotton filter core of first order PP, 62, second level CTO filter core, 63, third level T33 filter core, 64, the cotton filter core of fourth stage PP, 65, stainless steel filtering net, 81, fuel gas alarm, 82, probe mount, 91, smoke alarm, 101, oil smoke alarm, 111, controller, 112, water inlet TDS detector, 113, water outlet TDS detector, 114, display, 115, wireless communication module.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated. The present embodiment is implemented as prerequisite taking technical solutions of the utility model, provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
A kind of Intelligent reverse osmosis water purifier, as shown in Figure 1, comprising:
Low pressure reverse osmosis filter core 7, is connected with outlet pipe 15, obtains drinking water for purifying;
Also comprise:
Multistage composite filter core 6, as shown in Figure 2, its output is connected with the input of low pressure reverse osmosis filter core 7, for preliminary clearning running water;
Fore filter 2, its output is connected with the input of multistage composite filter core 6, and input is connected with water inlet pipe 1, for filtering running water bulky grain suspension, the value of defining of bulky grain suspension is 20～50 microns, specifically determines according to the aperture of fore filter 2;
Intelligence filter core control device 11, is connected with multistage composite filter core 6 and low pressure reverse osmosis filter core 7 respectively, for measuring and showing Inlet and outlet water water quality, and the residual life of multistage composite filter core 6 and low pressure reverse osmosis filter core 7.
As shown in Figure 3, multistage composite filter core 6 comprises the cotton filter core 61 of the first order PP setting gradually, second level CTO filter core 62, third level T33 filter core 63 and the cotton filter core 64 of fourth stage PP, and between adjacent filter core, is equipped with separation stainless steel filtering net 65.
The pore size filter of the cotton filter core 61 of first order PP is 5～10 microns, and the extruded activated carbon granular size of second level CTO filter core 62 is 10～50 orders, specific area 500～2000m2/ g, the activated carbon granule size of third level T33 filter core 63 is 10～50 orders, specific area 1500～2000m2/ g, the pore size filter of the cotton filter core 64 of fourth stage PP is 1～2 micron, and filter core is of a size of 7～15 cun, filters tap water volume and is 5～30 tons to the maximum, and filter core buckle-type is installed.
Water purifier also comprises storage assembly 3; other parameters; storage assembly 3 voltages are 5V; maximum power capacity can be for water purifier 180 days; fore filter 2 comprises support; and be located at filter screen and the power facility on support; before power facility is located at filter screen; and be connected with storage assembly 3; and in the time that water inlet pipe 1 end hydraulic pressure reaches 0.5Mpa, work and institute's electricity is sent to storage assembly 3, when generating, having realized pressure release, having protected filter screen; storage assembly 3 is preferably lithium battery, also can other possess the combination of battery or the plurality of batteries of charging/discharging function.
Water purifier is provided with the casing 5 of water stream channel in also comprising, multistage composite filter core 6 and low pressure reverse osmosis filter core 7 fixed by snap on casing 5 after, be electrically connected with intelligent filter core control device 11 by data wire, and set gradually along water (flow) direction in water stream channel. Concrete, multistage composite filter core 6 is of a size of 7～15 cun, and filter tap water volume and be 5～30 tons to the maximum, the maximum withstand voltage 3.0～4.0MPa that reaches, the aperture of stainless steel filtering net 65 is 10～20 microns, material is 307 stainless steels. Low pressure reverse osmosis membrane cartridge 7 is of a size of 7～15 cun, the maximum withstand voltage 3.0～4.0MPa that reaches, and operating pressure is 0.1～1.0MPa, filters tap water volume and is 30～50 tons to the maximum, net water flux >=30L/h.
Casing 5 bottoms are provided with the detection probe 14 of leaking; in water stream channel, be provided with leak stop 4; intelligence filter core control device 11 is connected with leak detection probe 14 and leak stop 4 respectively; and in the time that the detection probe 14 of leaking detects that casing 5 leaks, control leak stop 4 and work to cut off water stream channel; concrete leak stop 4 is located at the junction of water stream channel and fore filter 2, and cutout can be more directly rapidly like this.
As shown in Figure 6, intelligent filter core control device 11 comprises:
Water inlet TDS detector 112, for detection of the TDS value of water inlet;
Water outlet TDS detector 113, for detection of the TDS value of water outlet;
Controller 111, is connected with water inlet TDS detector 112 and water outlet TDS detector 113 respectively, for receiving the detection data of water inlet TDS detector 112 and water outlet TDS detector 113, and calculates the residual life of each filter core in conjunction with discharge data according to detection data;
Display 114, as shown in Figure 5, is located at casing 5 fronts and is connected with controller 111, for showing the TDS value of Inlet and outlet water and the residual life of each filter core;
Wireless communication module 115, be connected with controller 111, be specially WIFI module, be connected with the antenna 13 that is provided with casing 5 tops, as shown in Figure 7, for sending the TDS value of Inlet and outlet water and the residual life of each filter core to portable computing device 17, and receive the control instruction of being sent by portable computing device 17.
As shown in Figure 1 and Figure 4, water purifier combustion gas detection probe 8, Smoke Detection probe 9 and oil smoke detection probe 10, combustion gas detection probe 8, Smoke Detection probe 9 are all connected with intelligent filter core control device 11 with oil smoke detection probe 10, and the data that detect are sent to intelligent filter core control device 11, shown by intelligent filter core control device 11. in addition, water purifier also disposes fuel gas alarm 81, smoke alarm 91, oil smoke alarm 101, and buzzing loudspeaker 12, gas leakage detected, when smog and oil smoke exceed standard, fuel gas alarm 81, smoke alarm 91, oil smoke alarm 101 can be reported to the police respectively, concrete, fuel gas alarm 81, smoke alarm 91, oil smoke alarm 101 respectively with combustion gas detection probe 8, Smoke Detection probe 9 is connected with oil smoke detection probe 10, and, fuel gas alarm 81, smoke alarm 91, oil smoke alarm 101 is all connected with intelligent filter core control device 11 with buzzing loudspeaker 12. combustion gas detection probe 8, Smoke Detection probe 9 and oil smoke detection probe 10, and fuel gas alarm 81, smoke alarm 91, oil smoke alarm 101 and buzzing loudspeaker 12 are all fixed on casing 5 by probe mount 82.
Display 114 specifically shows water inlet TDS value, water outlet TDS value, multistage composite filter core residual life, low pressure reverse osmosis membrane cartridge residual life, gas meavuremeut value, smog measured value, oil smoke measured value and the situation of leaking under the control of controller 111, also can show that multistage composite filter core and low-pressure reverse osmosis membrane filter element replacing reminder time show, intelligent filter core control device 11 can also arrange the switch of wireless communication module 115 and the gauge tap to water purifier as required in addition simultaneously.
When application, water inlet pipe 11 and outlet pipe 15 are the antibacterial pipe of high strength HDPE, and caliber is 2～4 points. Fore filter 2 main bodys are 307 stainless steels, and 10～30 centimetres of height, determine according to user's water consumption, and filter pore size filter is 20～50 microns, and decompression operating pressure is 0.5～5.0MPa, can in decompression process, generate electricity, and generating efficiency 25～75%; Leak stop 4 is high-strength engineering plastic, and the response time is less than 1 second; Water purifier case 5 materials adopt high-strength engineering plastic. Combustion gas detection probe 8, Smoke Detection probe 9 and oil smoke detection probe 10 are high sensitivity probe, and certainty of measurement is 5ppm; Fuel gas alarm 81, smoke alarm 91, oil smoke alarm 101 are high sensitivity, and warning precision is 5ppm; Loudspeaker 12 is high-resolution buzzing loudspeaker, and the buzzing decibel of buzzing loudspeaker 12 is 80～120dBA.
The using method of above-mentioned Intelligent reverse osmosis water purifier is specific as follows:
1) connect water inlet pipe 1, start water purifier, running water enters intelligent water purifier through fore filter 2, and multi-functional fore filter 2 can be greater than particle diameter in running water 20 microns of above iron rust, silt lamp suspended particulate substances and filter out. If when intake pressure exceedes decompression starting pressure 0.5MPa, fore filter 2 starts decompression, the pressure that pressure utilization discharges in the process of decompression generates electricity, and institute's electricity is filled with storage assembly 3, can be each electric module for power supply.
2) intelligent filter core control device 11 senses that running water enters after intelligent water purifier automatically, intelligence filter core control device 11 starts and water inlet TDS value, water outlet TDS value is detected and shown, shows the data that multistage composite filter core residual life, low pressure reverse osmosis membrane cartridge residual life and each probe measurement are arrived simultaneously.
3) running water enters after water purifier, successively by the cotton filter core 61 of multistage composite filter core 6 first order PP, second level CTO filter core 62, third level T33 filter core 63, cotton filter core 64 filtration, purifications of fourth stage PP, and low pressure reverse osmosis membrane cartridge 7, the polluters such as the suspended impurity such as iron rust, silt in effective removal running water and bacterium, virus, chlorine residue, pigment, heavy metal, calcium ions and magnesium ions, for user provides qualified direct drinking water.
4) intelligent filter core control device 11 is normally worked, according to built-in filter core monitoring technology and calculation procedure, the parameters such as Water usage based on user, seasonal climate, water inlet TDS value, water outlet TDS value, calculate multistage composite filter core 6 and low pressure reverse osmosis membrane cartridge 7 filter element using states, and the residual life of filter core is upgraded in calculating, and show, filter core residual life initial data is 100%.
5) user can be according to the reading on intelligent filter core control device 11 displays 114, understand in real time combustion gas, smog, oil smoke concentration between working condition and the kitchen of water purifier, and whether leakage accident occurs water purifier.
6) by after the switch activated wireless communication module 115 of WIFI, wireless communication module 115 is normally worked, portable computing device 17 mates with the wireless signal 19 of wireless communication module 115, portable computing device 17 utilizes family expenses WIFI16 to obtain the data of server 18 by wireless signal 19, download the APP program of Intelligent reverse osmosis water purification, this APP program can be used to start, close the intelligent filter core control device 11 of Intelligent reverse osmosis water purifier, and shows in real time all demonstration data of intelligent filter core control device 11.
7) water purifier continuous firing, when residual life is less than 5%, the color showing by change display 114 is red more renew cartridge of reminding user while. Now, the APP on portable computing device 17 applies the signal that also can occur according to wireless communication module 115, based on establishing prompting function in APP, and reminding user renew cartridge more in time.
8) in the time that water inlet TDS value differs from built-in judgement numerical value, the viewing area of correspondence in display 114, carry breath user and check in time whether water purifier or water inlet running water occur extremely, now the APP on portable computing device 17 applies the signal that also can occur according to wireless communication module 115, based on establishing prompting function in APP, reminding user carries out above-mentioned inspection in time.
9) when the monitored data of combustion gas detection probe 8, Smoke Detection probe 9, oil smoke detection probe 10 and water leakage monitoring probe 14 has abnormal time, corresponding fuel gas alarm 81, smoke alarm 91 and oil smoke alarm 101 can send respectively the different sounds, buzzing loudspeaker 12 can also issue out the sound in the control of controller 111, the data that on display 114, corresponding viewing area shows will redden, play warning function, carry the breath user source that checks in time and eliminate danger. If leakage accident, leak stop 4 starts, and disconnects running water water route, avoids the aggravation of damage by water accident. Now the APP on portable computing device 17 applies the signal that also can occur according to wireless communication module 115, and based on establishing prompting function in APP, reminding user carries out above-mentioned inspection and and the source that eliminates danger in time. After fixing a breakdown, on display screen, corresponding data is red eliminates, and recovers normal operating conditions.
Claims (9)
1. an Intelligent reverse osmosis water purifier, comprising:
Low pressure reverse osmosis filter core (7), is connected with outlet pipe (15), obtains drinking water for purifying;
It is characterized in that, also comprise:
Multistage composite filter core (6), its output is connected with the input of low pressure reverse osmosis filter core (7), for preliminary clearning running water;
Fore filter (2), its output is connected with the input of multistage composite filter core (6), and input is connected with water inlet pipe (1), for filtering running water bulky grain suspension;
Intelligence filter core control device (11), be connected with multistage composite filter core (6) and low pressure reverse osmosis filter core (7) respectively, for measuring and showing Inlet and outlet water water quality, and the residual life of multistage composite filter core (6) and low pressure reverse osmosis filter core (7).
2. a kind of Intelligent reverse osmosis water purifier according to claim 1, it is characterized in that, described multistage composite filter core (6) comprises the first order PP setting gradually cotton filter core (61), second level CTO filter core (62), third level T33 filter core (63) and the cotton filter core of fourth stage PP (64), and between adjacent filter core, is equipped with separation stainless steel filtering net (65).
3. a kind of Intelligent reverse osmosis water purifier according to claim 2, is characterized in that, the extruded activated carbon granular size of described second level CTO filter core (62) is 10～50 orders, specific area 500～2000m2/g。
4. a kind of Intelligent reverse osmosis water purifier according to claim 2, is characterized in that, the activated carbon granule size of described third level T33 filter core (63) is 10～50 orders, specific area 1500～2000m2/g。
5. a kind of Intelligent reverse osmosis water purifier according to claim 1, it is characterized in that, described water purifier also comprises storage assembly (3), described fore filter (2) comprises support, and be located at filter screen and the power facility on support, before described power facility is located at filter screen, and be connected with storage assembly (3).
6. a kind of Intelligent reverse osmosis water purifier according to claim 1, it is characterized in that, described water purifier is provided with the casing (5) of water stream channel in also comprising, described multistage composite filter core (6) is connected with casing (5) by buckle with low pressure reverse osmosis filter core (7), and sets gradually along water (flow) direction in described water stream channel.
7. a kind of Intelligent reverse osmosis water purifier according to claim 6; it is characterized in that; described casing (5) is provided with the detection probe of leaking (14); in described water stream channel, be provided with leak stop (4), described intelligent filter core control device (11) is connected with the detection probe of leaking (14) and leak stop (4) respectively.
8. a kind of Intelligent reverse osmosis water purifier according to claim 1, is characterized in that, described intelligent filter core control device (11) comprising:
Water inlet TDS detector (112), for detection of the TDS value of water inlet;
Water outlet TDS detector (113), for detection of the TDS value of water outlet;
Controller (111), be connected with water inlet TDS detector (112) and water outlet TDS detector (113) respectively, be used for receiving the detection data of water inlet TDS detector (112) and water outlet TDS detector (113), and calculate the residual life of each filter core according to detection data in conjunction with discharge data;
Display (114), is connected with controller (111), for showing the TDS value of Inlet and outlet water and the residual life of each filter core;
Wireless communication module (115), be connected with controller (111), for sending the TDS value of Inlet and outlet water and the residual life of each filter core to portable computing device (17), and receive the control instruction of being sent by portable computing device (17).
9. according to a kind of Intelligent reverse osmosis water purifier described in any one in claim 1-8, it is characterized in that, described water purifier also comprises combustion gas detection probe (8), Smoke Detection probe (9) and oil smoke detection probe (10), and described combustion gas detection probe (8), Smoke Detection probe (9) are all connected with intelligent filter core control device (11) with oil smoke detection probe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520976738.1U CN205258154U (en) | 2015-11-30 | 2015-11-30 | Intelligence reverse osmosis water purification machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520976738.1U CN205258154U (en) | 2015-11-30 | 2015-11-30 | Intelligence reverse osmosis water purification machine |
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| CN205258154U true CN205258154U (en) | 2016-05-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022170794A1 (en) * | 2021-02-09 | 2022-08-18 | 珠海格力电器股份有限公司 | Method and apparatus for determining usage duration of filter element |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022170794A1 (en) * | 2021-02-09 | 2022-08-18 | 珠海格力电器股份有限公司 | Method and apparatus for determining usage duration of filter element |
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Granted publication date: 20160525 Termination date: 20201130 |