CN212712993U - Water purification system and water purifier - Google Patents
Water purification system and water purifier Download PDFInfo
- Publication number
- CN212712993U CN212712993U CN202021492364.3U CN202021492364U CN212712993U CN 212712993 U CN212712993 U CN 212712993U CN 202021492364 U CN202021492364 U CN 202021492364U CN 212712993 U CN212712993 U CN 212712993U
- Authority
- CN
- China
- Prior art keywords
- water
- pure water
- pipeline
- electromagnetic valve
- pure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 407
- 238000000746 purification Methods 0.000 title claims abstract description 30
- 239000002351 wastewater Substances 0.000 claims abstract description 31
- 239000000523 sample Substances 0.000 claims description 23
- 238000011045 prefiltration Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000630 rising effect Effects 0.000 abstract description 3
- 238000000151 deposition Methods 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 description 8
- 238000010612 desalination reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a water purification system and water purifier. This water purification system includes former water pipeline, the pure water pipeline, waste water pipeline and pure water return line, pure water pipeline and pure water return line are connected respectively in the first RO filter core delivery port department of RO filter core, when the play tap of being connected with the pure water pipeline is opened, earlier with the shut down the back, the pure water of depositing the TDS value of a period of time and rising flows back to former water pipeline through the pure water return line and filters, treat when the pure water TDS value that detects accords with the preset condition, control the pure water and go out water from the play tap via the pure water pipeline, can effectively reduce the pure water TDS value, improve raw water filter effect, guarantee out pure water quality of water, promote user experience.
Description
Technical Field
The utility model relates to a water purification technology field, concretely relates to water purification system and water purifier.
Background
Most RO water purifier on the existing market, after shutting down, there is the ion permeation phenomenon at RO membrane both ends, and the TDS value of pure water end can rise gradually, and the user gets the water after interval a period, and the TDS value of the preceding effluent of water purifier is higher, if the user takes a small amount of water at an interval, can lead to using the water of higher TDS value always, and the water purifier does not reach normal filter effect like this, influences out water quality of water, influences user experience.
Chinese patent application publication No. CN106986492A discloses a water purifier for preventing a TDS value from rising, in which a pure water return passage is connected between a booster pump and a water inlet valve, and after water production is completed, the machine continues to operate, pure water returns, and a mixed water formed by pure water and raw water is used to replace a concentrated water, thereby reducing the TDS value on a concentrated water side of an RO filter element. It just carries out the pure water backward flow once at every fixed time and replaces dense water with the raw water together, though can reduce the TDS value of RO filter core dense water side to a certain extent, still has the higher and water waste's of TDS value problem.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned problem that prior art exists, the utility model aims to provide a water purification system and water purifier, it can reduce pure water TDS value, improves raw water filter effect and pure water play water quality of water, promotes user experience.
In order to achieve the above object, the utility model provides a water purification system, include:
the water inlet end of the raw water pipeline is a raw water inlet, the water outlet end of the raw water pipeline is connected with an RO filter core water inlet of an RO filter core, and the raw water pipeline is provided with a booster pump;
the water inlet end of the pure water pipeline is connected with the water outlet of the first RO filter element of the RO filter element, the water outlet end of the pure water pipeline is connected with a water outlet tap, and a first electromagnetic valve is arranged on the pure water pipeline;
the water inlet end of the waste water pipeline is connected with the water outlet of the second RO filter element of the RO filter element, the water outlet end of the waste water pipeline is a waste water outlet, and a second electromagnetic valve and a waste water valve are arranged on the waste water pipeline;
the inlet of the pure water return pipeline is connected with the water outlet of the first RO filter element of the RO filter element, the outlet of the pure water return pipeline is connected with the raw water pipeline, so that raw water is filtered by the RO filter element and then flows back to the raw water pipeline, and a first TDS probe and a third electromagnetic valve are arranged on the pure water return pipeline;
control module, its respectively with go out tap, first solenoid valve, second solenoid valve, third solenoid valve, booster pump and when opening out the tap, control module control the second solenoid valve the third solenoid valve and the booster pump is opened, control first solenoid valve is closed, and when the pure water TDS value that first TDS probe detected accords with the preset condition, control the third solenoid valve is closed, controls first solenoid valve opens, makes the pure water via it flows to go out the tap.
The embodiment of the utility model provides a water purification system is through connecting pure water pipeline and pure water return line respectively in the first RO filter core delivery port department of RO filter core, when receiving user's water demand, will shut down the back earlier, the pure water of depositing the TDS value of a period and rising flows back to the former water pipeline through the pure water return line and filters, treat when the pure water TDS value that detects accords with preset condition, make the pure water flow from the faucet via the pure water pipeline, supply the user to use, go on the pure water backward flow earlier when going out water promptly, can effectively reduce the pure water TDS value, improve the raw water filter effect, guarantee pure water outlet water quality of water, promote user experience.
In some embodiments, the raw water pipeline is further provided with a pre-filter element, the pre-filter element is arranged at the upstream of the booster pump along the water inlet direction, and the outlet of the pure water return pipeline is connected to the raw water pipeline between the pre-filter element and the booster pump. Can carry out the prefilter to raw water through leading filter core, and the exit linkage of pure water return line is located leading filter core with between the booster pump raw water pipeline mixes the pure water of backward flow and the raw water after the prefilter, can improve the filtration efficiency of mixing water.
In some embodiments, the water outlet faucet comprises a hall switch, the hall switch is electrically connected with the control module, when the water outlet faucet is opened, the control module receives an opening signal of the hall switch, controls the first electromagnetic valve to be closed, controls the second electromagnetic valve and the third electromagnetic valve to be opened, and controls the booster pump to operate, pure water filtered by the RO filter element flows back to the raw water pipeline through the pure water return pipeline, and when the first TDS probe detects that a pure water TDS value meets a preset condition, the control module controls the third electromagnetic valve to be closed and the first electromagnetic valve to be opened, so that the pure water flows out through the water outlet faucet; when the water outlet faucet is closed, the control module receives a closing signal of the Hall switch, controls the first electromagnetic valve and the second electromagnetic valve to be closed, and controls the booster pump to stop running. Through the Hall switch who sets up at water tap, can carry out accurate control to the work of whole water purification system, promote user experience.
In some embodiments, a flow meter is further arranged on the pure water return pipeline to detect the flow of the returned pure water; the pure water pipeline and the pure water return pipeline are provided with a common pipeline connected to the water outlet of the first RO filter element, and the flowmeter is installed on the common pipeline. The flow meter is used for detecting the flow of the returned pure water, so that the pure water return and the pure water outlet can be effectively controlled by using the flow, the water quality of the outlet water is ensured, and the flow meter can also be used for detecting the service life of a filter element; in addition, by arranging the common pipeline, the structure is reasonable, and the pure water pipeline and the pure water return pipeline are convenient to control.
In some embodiments, the pure water return pipeline is further provided with a one-way valve, so that pure water can only flow from the water outlet of the first RO filter element to the raw water pipeline, reverse flow is prevented, and the quality of outlet water is ensured.
In some embodiments, the waste water valve is disposed upstream or downstream of the second solenoid valve to provide precise control of the effluent waste water.
In some embodiments, a second TDS probe is provided on the raw water line, either upstream or downstream of where the pure water return line connects to the raw water line. Through the cooperation of second TDS probe and first TDS probe, detect raw water TDS value and pure water TDS value respectively and can utilize the desalination rate to go out water to carry out effective control to pure water backward flow and pure water, guarantee out water quality of water.
In some embodiments, still be equipped with the suggestion unit on the play water tap, the suggestion unit with the control module electricity is connected, first solenoid valve is closed the third solenoid valve with the booster pump is opened for pure water backward flow, play water need wait for the time, control module control suggestion unit work carries out the pure water backward flow in order to indicate the user, promotes user experience.
In some embodiments, the first solenoid valve, the second solenoid valve, and the third solenoid valve are all normally closed solenoid valves, or the first solenoid valve and the third solenoid valve are all normally open solenoid valves. So, can choose for use corresponding solenoid valve as required, improve control effect to promote user experience.
The utility model also provides a water purifier, including foretell water purification system.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the embodiments of the invention. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.
Fig. 1 is a schematic structural diagram of pure water backflow of a water purification system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of pure water outlet of the water purification system according to the embodiment of the present invention.
Reference numerals:
10-raw water pipeline and 101-raw water inlet; 20-pure water pipeline; 30-a waste water pipeline and 301-a waste water outlet; 40-a pure water return line; 50-common piping;
1-RO filter element, 11-RO filter element water inlet, 121-first RO filter element water outlet, 122-second RO filter element water outlet; 2, a booster pump; 3-water outlet tap; 41-a first solenoid valve, 42-a second solenoid valve, 43-a third solenoid valve; 51-waste water valve, 52-one-way valve; 61-a first TDS probe, 62-a second TDS probe; 7-a front filter element; 8-flow meter.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.
Fig. 1 and 2 show schematic structural diagrams of a water purification system according to an embodiment of the present invention (the arrow direction in fig. 1 is a water flow direction when pure water flows back, and the arrow direction in fig. 2 is a water flow direction when pure water flows out). As shown in fig. 1 and 2, the embodiment of the utility model provides a water purification system, include:
a raw water inlet 101 is arranged at the water inlet end of the raw water pipeline 10, the water outlet end of the raw water pipeline is connected with an RO filter core water inlet 11 of the RO filter core 1, and a booster pump 2 is arranged on the raw water pipeline 10;
a pure water pipeline 20, the water inlet end of which is connected with the first RO filter element water outlet 121 of the RO filter element 1, the water outlet end of which is connected with the water outlet tap 3, and the pure water pipeline 20 is provided with a first electromagnetic valve 41;
a water inlet end of the wastewater pipeline 30 is connected with the second RO filter element water outlet 122 of the RO filter element 1, a water outlet end of the wastewater pipeline is a wastewater outlet 301, and the wastewater pipeline 30 is provided with a second electromagnetic valve 42 and a wastewater valve 51;
a pure water return line 40, an inlet of which is connected to the first RO filter element water outlet 121 of the RO filter element 1, and an outlet of which is connected to the raw water line 10, so that the raw water is filtered by the RO filter element 1 and then flows back to the raw water line 10, wherein the pure water return line 40 is provided with a first TDS probe 61 and a third electromagnetic valve 43;
and a control module (not shown) respectively electrically connected to the water outlet tap 3, the first solenoid valve 41, the second solenoid valve 42, the third solenoid valve 43, the booster pump 2 and the first TDS probe 61, wherein when the water outlet tap 3 is opened, the control module controls the second solenoid valve 42, the third solenoid valve 43 and the booster pump 2 to be opened, controls the first solenoid valve 41 to be closed, and controls the third solenoid valve 43 to be closed when the TDS value of the pure water detected by the first TDS probe 61 meets a preset condition, controls the first solenoid valve 41 to be opened, so that the pure water flows out through the water outlet tap 3.
Specifically, the first RO filter element water outlet 121 is a pure water outlet, the second RO filter element water outlet 122 is a wastewater outlet, after raw water flowing in from the raw water pipeline 10 is filtered by the RO filter element 1, pure water flows out from the first RO filter element water outlet 121, and wastewater flows out from the second RO filter element water outlet 122, at this time, as shown in fig. 1, the first electromagnetic valve 41 is closed, the third electromagnetic valve 43 is opened, pure water flows back to the raw water pipeline 10 through the pure water backflow pipeline 40, and enters the RO filter element 1 along with the raw water for further filtration, when the detected pure water TDS value meets a preset condition, that is, the pure water meets a filtration requirement, as shown in fig. 2, the first electromagnetic valve 41 is opened, and the third electromagnetic valve 43 is closed, so that the pure water meeting the filtration requirement flows out from the water outlet faucet 3 through the pure water. When the water purification system is in operation, the second solenoid valve 42 may be opened all the time, so that the filtered waste water is discharged in time.
The embodiment of the utility model provides a water purification system is through connecting pure water pipeline 20 and pure water return line 40 respectively in RO filter core 1's first RO filter core delivery port 121 punishment, when receiving user's water demand, the pure water that earlier control first RO filter core delivery port 121 flows out further filters through the 40 backward flows of pure water return line, treat that the pure water TDS value that detects accords with when predetermineeing the condition, make the pure water flow out from tap 3 via pure water pipeline 20 again, supply the user to use, go on the pure water backward flow earlier when going out water promptly, can effectively reduce pure water TDS value, improve raw water filter effect, guarantee pure water play water quality of water, promote user experience. The pure water flowing out of the first RO filter element water outlet 121 can be the pure water with a TDS value increased for a period of time after shutdown.
It should be noted that, the preset condition of the pure water TDS value may be that the pure water TDS value is less than 50, or less than 40, or less than 30, and the specific value is determined according to the practice, which is not specifically limited by the present invention.
The booster pump 2 is used to smoothly pump raw water to the RO cartridge 1 for filtration, the waste water valve 51 is used to precisely control waste water flowing out of the waste water line 30, and the waste water valve 51 may be provided upstream or downstream of the second electromagnetic valve 42.
In some embodiments, the raw water pipeline 10 is further provided with a pre-filter element 7 for performing preliminary filtration on raw water to remove impurities with larger particles. The prepositive filter element 7 is arranged at the upstream of the booster pump 2 along the water inlet direction, and the outlet of the pure water return pipeline 40 is connected to the raw water pipeline 10 between the prepositive filter element 7 and the booster pump 2.
Further, the water outlet tap 3 comprises a hall switch, the hall switch is electrically connected with the control module, when the water outlet tap 3 is opened, the control module receives an opening signal of the hall switch, controls the first electromagnetic valve 41 to be closed, controls the second electromagnetic valve 42 and the third electromagnetic valve 43 to be opened, controls the booster pump 2 to operate, pure water filtered by the RO filter element 1 flows back to the raw water pipeline 10 through the pure water return pipeline 40, and when the first TDS probe 61 detects that the TDS value of the pure water meets a preset condition, the control module controls the third electromagnetic valve 43 to be closed and the first electromagnetic valve 41 to be opened, so that the pure water flows out through the water outlet tap 3; when the water outlet faucet 3 is closed, the control module receives a closing signal of the hall switch, controls the first electromagnetic valve 41 and the second electromagnetic valve 42 to be closed, and controls the booster pump 2 to stop running, so that the water purifier enters a standby state.
In the above embodiment, when the first TDS probe 61 detects that the TDS value of the pure water meets the preset condition, the first electromagnetic valve 41 is opened to allow the water outlet faucet 3 to discharge water.
In some embodiments, the opening of the first electromagnetic valve 41 may also be controlled by time, when the water outlet tap 3 is opened, the control module receives an opening signal of the hall switch, controls the first electromagnetic valve 41 to be closed, controls the second electromagnetic valve 42 and the third electromagnetic valve 43 to be opened, and controls the booster pump 2 to operate, after the second electromagnetic valve 42, the third electromagnetic valve 43 and the booster pump 2 operate for a preset time, the control module controls the third electromagnetic valve 43 to be closed and the first electromagnetic valve 41 to be opened, so that pure water flows out through the water outlet tap 3, that is, after the pure water reflows for the preset time, the water outlet tap 3 is controlled to discharge water, so as to ensure the quality of the discharged water. The preset time may be 5 seconds, 10 seconds, 15 seconds, etc., and the present invention is not particularly limited.
In other embodiments, the opening of the first electromagnetic valve 41 may also be controlled by flow control, that is, the flow meter 8 is additionally disposed on the pure water return line 40, when the water outlet tap 3 is opened, the control module receives an opening signal of the hall switch, controls the first electromagnetic valve 41 to close, controls the second electromagnetic valve 42 and the third electromagnetic valve 43 to open, and controls the booster pump 2 to operate, and after the flow meter 8 detects that the flow flowing through the pure water return line 40 is the preset flow, the control module controls the third electromagnetic valve 43 to close and the first electromagnetic valve 41 to open, so that pure water flows out through the water outlet tap 3, that is, after the pure water at the preset flow flows back, the water outlet tap 3 is controlled to discharge water, so as to ensure the quality of the. The preset flow rate can be 0.5L, 0.75L, 1L and the like, and the utility model is not particularly limited. In some embodiments, flow meter 8 may also be used for cartridge life testing to facilitate timely cartridge replacement.
As shown in fig. 1 and 2, in the present embodiment, the pure water line 20 and the pure water return line 40 have a common line 50 connected to the first RO cartridge water outlet 121, pure water flowing out of the first RO cartridge water outlet 121 may flow into the pure water return line 40 to flow back or into the pure water line 20 to flow out after flowing through the common line 50, and at the same time, the opening or closing of the respective lines is controlled by the third solenoid valve 43 installed in the pure water return line 40 and the first solenoid valve 41 installed in the pure water line 20. Because this application carries out the pure water backward flow earlier with judgement pure water TDS value, carries out the play water again, consequently, the flowmeter 8 that is used for detecting the first TDS probe 61 of pure water TDS value and is used for detecting the flow of pure water return line 40 all can set up on this public pipeline 50.
In still other embodiments, the opening of the first solenoid valve 41 can be controlled by the desalination rate of the RO filter cartridge 1, as shown in fig. 1 and fig. 2, a second TDS probe 62 can be additionally arranged on the raw water pipeline 10, when the outlet tap 3 is opened, the control module receives an opening signal of the hall switch, controls the first solenoid valve 41 to be closed, controls the second solenoid valve 42 and the third solenoid valve 43 to be opened, and controls the booster pump 2 to operate, the first TDS probe 61 and the second TDS probe 62 respectively detect the pure water TDS value and the raw water TDS value, and feeds back the detection result to the control module, and when the desalination rate (ratio of the pure water TDS value to the raw water TDS value) satisfies a preset condition, the control module controls the third solenoid valve 43 to be closed, and the first solenoid valve 41 to be opened, so that pure water flows out through the outlet tap 3. The preset condition can be preset values of the desalination rate of more than 85%, 90%, etc., and the specific numerical value of the desalination rate is not specifically limited by the utility model. In this embodiment, the second TDS probe 62 is located at the upstream or downstream of the connection between the pure water return line 40 and the raw water line 10 to ensure the accuracy of the detection of the TDS value of the raw water.
After the opening and closing of the first electromagnetic valve 41 and the third electromagnetic valve 43 are controlled by using the preset conditions to discharge water, further, the control module may further set that when the water discharge time interval of the water discharge faucet 3 is lower than the preset time, the pure water does not flow back, that is, when the water discharge time interval is shorter, the pure water is considered to have reached the filtering requirement, so as to ensure smooth water discharge; when the time interval of water outlet is longer, pure water backflow is needed to ensure the filtering effect. The preset time may be 5 minutes, 10 minutes, 15 minutes, etc., and the present invention is not particularly limited.
In some embodiments, the water outlet faucet 3 is further provided with a prompting unit, the prompting unit is electrically connected with the control module, the first electromagnetic valve 41 is closed, and the third electromagnetic valve 43 is opened, so that when pure water backflow and water outlet need to wait, the control module controls the prompting unit to work to prompt a user that pure water backflow is performed. The prompting unit can be a prompting lamp or an alarm, and the prompting lamp can prompt the user in a flashing or normally-on mode. The user can be prompted through the prompting unit before the pure water is refluxed and the water is discharged from the water outlet faucet 3.
In some embodiments, the water purification system further comprises a pure water backflow function switch electrically connected to the control module, and the pure water backflow function switch can directly switch to the pure water backflow function or does not perform pure water backflow. When pure water backflow is not performed (the pure water backflow function switch is turned off), the control module directly controls the first electromagnetic valve 41 and the second electromagnetic valve 42 to be opened (the third electromagnetic valve 43 is kept closed) after receiving an opening signal of the Hall switch, and controls the booster pump 2 to start and operate, so that pure water flows out through the water outlet faucet 3; after receiving the closing signal of the hall switch, the control module controls the first electromagnetic valve 41 and the second electromagnetic valve 42 to close, and controls the booster pump 2 to stop running, so that the water purifier enters a standby state. Similarly, when pure water backflow (closing of the pure water backflow function switch) is performed, after the control module receives an opening signal of the hall switch, the control module directly controls the second electromagnetic valve 42 and the third electromagnetic valve 43 to open, and controls the booster pump 2 to start and operate, so that pure water flows back to the raw water pipeline 10 through the pure water backflow pipeline 40; after receiving the closing signal of the hall switch, the control module controls the second electromagnetic valve 42 and the third electromagnetic valve 43 to close, and controls the booster pump 2 to stop running, so that the water purifier enters a standby state.
In some embodiments, the pure water return line 40 is further provided with a check valve 52, so that pure water can only flow from the first RO cartridge water outlet 121 to the raw water line 10, and pure water which does not reach the preset condition is prevented from flowing back to the pure water line 20, thereby ensuring the quality of the outlet water.
In this embodiment, the first electromagnetic valve 41, the second electromagnetic valve 42, the third electromagnetic valve 43 and the waste water valve 51 are all normally closed electromagnetic valves, and when the valves need to be opened, the control module controls the corresponding electromagnetic valves to be opened; or, the first electromagnetic valve 41 and the third electromagnetic valve 43 are both normally open electromagnetic valves, and when pure water backflow is performed, the first electromagnetic valve 41 is closed; when water discharge is performed, the third electromagnetic valve 43 is closed.
The embodiment of the utility model provides a water purifier is still provided, and it includes foretell water purification system. This water purifier has the same beneficial effect with above-mentioned water purification system, and no longer gives unnecessary details here.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (10)
1. A water purification system, comprising:
the water inlet end of the raw water pipeline is a raw water inlet, the water outlet end of the raw water pipeline is connected with an RO filter core water inlet of an RO filter core, and the raw water pipeline is provided with a booster pump;
the water inlet end of the pure water pipeline is connected with the water outlet of the first RO filter element of the RO filter element, the water outlet end of the pure water pipeline is connected with a water outlet tap, and a first electromagnetic valve is arranged on the pure water pipeline;
the water inlet end of the waste water pipeline is connected with the water outlet of the second RO filter element of the RO filter element, the water outlet end of the waste water pipeline is a waste water outlet, and a second electromagnetic valve and a waste water valve are arranged on the waste water pipeline;
the inlet of the pure water return pipeline is connected with the water outlet of the first RO filter element of the RO filter element, the outlet of the pure water return pipeline is connected with the raw water pipeline, so that raw water is filtered by the RO filter element and then flows back to the raw water pipeline, and a first TDS probe and a third electromagnetic valve are arranged on the pure water return pipeline;
and the control module is respectively electrically connected with the water outlet faucet, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the booster pump, the waste water valve and the first TDS probe, when the water outlet faucet is opened, the control module controls the second electromagnetic valve, the third electromagnetic valve and the booster pump to be opened, controls the first electromagnetic valve to be closed, controls the third electromagnetic valve to be closed when a pure water TDS value detected by the first TDS probe accords with a preset condition, and controls the first electromagnetic valve to be opened so that pure water flows out from the water outlet faucet.
2. The water purification system of claim 1, wherein a pre-filter element is further arranged on the raw water pipeline, the pre-filter element is arranged at the upstream of the booster pump along the water inlet direction, and the outlet of the pure water return pipeline is connected to the raw water pipeline between the pre-filter element and the booster pump.
3. The water purification system of claim 1, wherein the water outlet tap comprises a hall switch, the hall switch is electrically connected with the control module, when the water outlet tap is opened, the control module receives an opening signal of the hall switch, controls the first electromagnetic valve to be closed, controls the second electromagnetic valve and the third electromagnetic valve to be opened, controls the booster pump to operate, and controls the pure water filtered by the RO filter element to flow back to the raw water pipeline through the pure water return pipeline; when the water outlet faucet is closed, the control module receives a closing signal of the Hall switch, controls the first electromagnetic valve and the second electromagnetic valve to be closed, and controls the booster pump to stop running.
4. The water purification system of claim 1, wherein a flow meter is further arranged on the pure water return pipeline to detect the flow of pure water; the pure water pipeline and the pure water return pipeline are provided with a common pipeline connected to the water outlet of the first RO filter element, and the flowmeter is installed on the common pipeline.
5. The water purification system of claim 1, wherein a one-way valve is further disposed on the pure water return line, so that pure water can only flow from the water outlet of the first RO cartridge to the raw water line.
6. The water purification system of claim 1, wherein the waste water valve is disposed upstream or downstream of the second solenoid valve.
7. The water purification system of claim 1, wherein a second TDS probe is provided on the raw water line, the second TDS probe being located upstream or downstream of the connection of the pure water return line to the raw water line.
8. The water purification system of claim 1, wherein a prompt unit is further arranged on the water outlet faucet, the prompt unit is electrically connected with the control module, the first electromagnetic valve is closed, and the third electromagnetic valve and the booster pump are opened, so that when pure water flows back and water flows out and needs to wait, the control module controls the prompt unit to work to prompt a user.
9. The water purification system of claim 1, wherein the first solenoid valve, the second solenoid valve, and the third solenoid valve are all normally closed solenoid valves, or wherein the first solenoid valve and the third solenoid valve are all normally open solenoid valves.
10. A water purifier characterized by comprising the water purification system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021492364.3U CN212712993U (en) | 2020-07-24 | 2020-07-24 | Water purification system and water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021492364.3U CN212712993U (en) | 2020-07-24 | 2020-07-24 | Water purification system and water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212712993U true CN212712993U (en) | 2021-03-16 |
Family
ID=74908799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021492364.3U Active CN212712993U (en) | 2020-07-24 | 2020-07-24 | Water purification system and water purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212712993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896285A (en) * | 2021-11-22 | 2022-01-07 | 杭州老板电器股份有限公司 | Water purifier, water purifier control method and intelligent household system control method |
| CN114084919A (en) * | 2021-11-16 | 2022-02-25 | 广东摩飞科技有限公司 | Control method and water purifier |
-
2020
- 2020-07-24 CN CN202021492364.3U patent/CN212712993U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084919A (en) * | 2021-11-16 | 2022-02-25 | 广东摩飞科技有限公司 | Control method and water purifier |
| CN113896285A (en) * | 2021-11-22 | 2022-01-07 | 杭州老板电器股份有限公司 | Water purifier, water purifier control method and intelligent household system control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108975540B (en) | Water purification system and water purifier | |
| CN212712993U (en) | Water purification system and water purifier | |
| CN108975543B (en) | Water purification system and water purifier | |
| CN112142214A (en) | Water purifier and control method and device thereof | |
| CN216825224U (en) | Water purifier device and system | |
| CN108083467A (en) | Purifier | |
| CN205427495U (en) | Control is water purification system of big water yield | |
| CN214360551U (en) | Water purifier | |
| CN114262024A (en) | Water purifier with flowmeter and intelligent water outlet assembly | |
| CN108686515A (en) | Water purification system capable of improving recovery rate, control method of water purification system and water purifier | |
| CN214715718U (en) | Water purification system and water purifier with same | |
| CN108975542B (en) | Water purification system and water purifier | |
| CN210286987U (en) | Ultra-filtration water purifying device capable of automatically backwashing | |
| CN108996731B (en) | Water-saving multistage RO filtration system | |
| CN114275846A (en) | Waterway system with wastewater direct discharge and pure water reflux and water purifier | |
| CN209210505U (en) | Water purification system and purifier of adjustable rate of recovery | |
| CN216808223U (en) | Waterway system with double-TDS probe | |
| CN220352941U (en) | Water purification system | |
| CN216808234U (en) | Waterway system with double TDS probes | |
| CN216808226U (en) | Water purifier with flowmeter and intelligent water outlet assembly | |
| CN216711674U (en) | Water purifier with flowmeter and intelligent water outlet assembly | |
| CN216918805U (en) | Treated water purification and reuse device | |
| CN217127097U (en) | Waterway system and water purifier | |
| CN217323461U (en) | Waterway system with double-TDS probe | |
| CN216808229U (en) | Waterway system with double TDS probes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |