CN114272670B - Water purification equipment and control method thereof - Google Patents
Water purification equipment and control method thereof Download PDFInfo
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- CN114272670B CN114272670B CN202111610099.3A CN202111610099A CN114272670B CN 114272670 B CN114272670 B CN 114272670B CN 202111610099 A CN202111610099 A CN 202111610099A CN 114272670 B CN114272670 B CN 114272670B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 792
- 238000000746 purification Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000011010 flushing procedure Methods 0.000 claims abstract description 118
- 238000003860 storage Methods 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 14
- 239000008213 purified water Substances 0.000 claims description 83
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- 230000003993 interaction Effects 0.000 claims description 10
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- 238000001914 filtration Methods 0.000 abstract description 30
- 238000002360 preparation method Methods 0.000 abstract description 11
- 238000005406 washing Methods 0.000 description 15
- 239000007788 liquid Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
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- 238000001223 reverse osmosis Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
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Abstract
The application relates to a water purification unit and a control method thereof, wherein the water purification unit comprises: the water storage tank is provided with an independent concentrated water area, an independent original water area and an overflow channel communicated with the concentrated water area and the original water area, the water pump is communicated between a raw water inlet of the filtering piece and the raw water area, and the valve piece is communicated between a flushing port of the filtering piece and the concentrated water area. The first detection device is used for obtaining raw water level characteristics of a raw water area, the controller is in communication connection with the water pump, the valve piece and the first detection device, the valve piece is controlled to be switched between a low-flow state for executing water making operation and a high-flow state for executing flushing operation according to the raw water level characteristics, and after the valve piece is in the high-flow state and keeps a first time period, the water pump is closed and a user is informed of water changing. Above-mentioned water purification unit can solve because of the not good problem of user experience of using experience that muddy water preparation water purification leads to.
Description
Technical Field
The application relates to the technical field of water treatment equipment, in particular to water purification equipment and a control method thereof.
Background
The existing water purifying equipment can store raw water and concentrated water in a separated mode in order to enable user experience to be better, and purified water is only prepared after being filtered by the raw water and is quite popular among users. In the correlation technique, the concentrated water tank and the raw water tank are integrated, so that a user can conveniently clean concentrated water and raw water simultaneously, and the whole machine is compact in structure and miniaturized. Carry out the in-process that the cross-flow filtered system water at water purification unit, can produce certain dense water to wash the filter core in making water midway and produce dense water once more, because the dense water yield that system water in-process produced receives filter core state and quality of water influence and can not confirm, when using integral type dense water tank/former water tank, the thick water spills over the former water tank from the dense water tank and pollutes the condition of raw water easily appears, make follow-up system water use be through the water that raw water and dense aqueous phase mixture formed, cause user experience to feel poor.
Disclosure of Invention
The application provides a water purifying device and a control method thereof, aiming at the problem that concentrated water is easy to overflow to pollute raw water in the existing water purifying device, which causes poor experience of users due to the fact that the users use purified water prepared from water formed by mixing raw water and concentrated water, and the water purifying device and the control method thereof have the technical effects that the mixed water cannot be used for preparing purified water, and the user experience is good.
A water purification apparatus comprising:
the water storage tank is provided with an independent concentrated water area, an independent raw water area and an overflow channel communicated with the concentrated water area and the raw water area;
the water pump is communicated between a raw water inlet of the filtering piece and the raw water area;
a valve member communicated between the flushing port of the filter member and the concentrated water area;
the first detection device is used for acquiring the raw water level characteristics of the raw water area; and
and the controller is in communication connection with the water pump, the valve piece and the first detection device, controls the valve piece to be switched between a small flow state for executing water making operation and a large flow state for executing flushing operation according to the raw water level characteristics, and closes the water pump and informs a user to change water after the valve piece is in the large flow state and keeps a first duration.
In one embodiment, the water purifying apparatus further comprises a purified water tank disposed at the purified water outlet of the filter element, and a second detecting device for obtaining a purified water level characteristic of the purified water tank;
the controller is in communication connection with the second detection device and controls the state switching of the valve and the action of the water pump according to the purified water level characteristics.
In one embodiment, the water purification device further comprises an interactive element, wherein the interactive element is used for acquiring a powerful flushing instruction triggered by a user;
the controller is in communication connection with the interactive element and controls the state switching of the valve element according to the powerful flushing instruction.
In one embodiment, the first detection device comprises a proximity switch and a floater, the water storage tank is provided with an installation channel communicated with the bottom of the raw water region, the floater is positioned in the installation channel, the proximity switch is arranged corresponding to the installation channel, and the floater enters or exits the sensing range of the proximity switch when ascending or descending along the installation channel along with the water level change in the installation channel;
the proximity switch is electrically connected with the controller, and the raw water level characteristic is an induction signal generated by the proximity switch.
In one embodiment, the height of the installation channel is smaller than the depth of the raw water area, and when the floater is positioned at the highest position of the floater, the installation channel is positioned in the sensing range of the proximity switch.
In one embodiment, the inner wall of the storage tank defining the raw water region is recessed to form a slot extending to the bottom of the storage tank, and the slot is configured to form the mounting channel.
In one embodiment, the water storage tank comprises a tank body and a partition plate, the partition plate is positioned in the tank body and divides the tank body into the concentrated water area and the raw water area, and the top of the partition plate is lower than the top of the tank body so as to form an interval serving as the overflow channel.
A control method of a water purifying apparatus, comprising:
acquiring raw water level characteristics of a raw water area in a water storage tank, and judging whether the water level of the raw water area is at an automatic flushing water level or not according to the raw water level characteristics;
if so, switching the valve element to a large-flow state and keeping the valve element for a first duration;
and closing the water pump and informing a user to change the water.
In one embodiment, the control method of the water purifying apparatus further includes:
acquiring the water level characteristics of the purified water tank;
judging whether the purified water tank is short of water or not and the water level of the raw water area is higher than the automatic flushing water level according to the purified water level characteristic and the raw water level characteristic;
if yes, the water pump is started, and the valve is switched to a low-flow state.
In one embodiment, the control method of the water purifying apparatus further includes:
receiving a powerful flushing instruction triggered by a user;
judging whether the water level of the raw water area is not lower than a powerful flushing water level according to the obtained raw water level characteristics, wherein the powerful flushing water level is higher than the automatic flushing water level;
if so, switching the valve element to a large-flow state and keeping a second time length, wherein the second time length is longer than the first time length;
the pump is turned off and the user is notified to change the water.
According to the water purifying equipment and the control method thereof, the user is immediately informed to change water after the flushing is finished, even if the concentrated water overflows to the raw water tank to mix water due to insufficient water storage volume of the concentrated water area in the flushing process, the mixed water is also cleaned, the water used in next water production is the raw water which is changed again, and the condition that the mixed water is used for preparing purified water does not exist. From this, can solve because of dense water overflows the former water tank and leads to mixing water preparation water purification, the user that leads to uses the problem that experience feels not good, need not increase the dense water tank volume simultaneously, changes the complete machine volume, changes former water tank volume etc. improves cost reduction, helps the miniaturization of complete machine structure and increases the whole machine water yield.
Drawings
Fig. 1 is a system diagram of a water purification apparatus according to an embodiment of the present application;
FIG. 2 is a schematic system diagram of a water purification apparatus according to another embodiment of the present application;
FIG. 3 is a schematic structural diagram of a water storage tank according to an embodiment of the present application;
FIG. 4 is a schematic view of a first state of the first detecting device in the water storage tank shown in FIG. 3;
FIG. 5 is a schematic diagram of a second state of the first detecting device in the water storage tank shown in FIG. 3;
FIG. 6 is a logic control diagram of a water purification apparatus according to an embodiment of the present application;
fig. 7 is a schematic flow chart illustrating a control method of a water purifying apparatus according to an embodiment of the present application.
Description of reference numerals:
1000. a water purification unit; 10. a water storage tank; 11. a concentrated water zone; 12. a raw water zone; 13. an overflow passage; 14. a box body; 15. a partition plate; 16. installing a channel; 20. a water pump; 30. a filter member; 40. a valve member; 50. a water purifying tank; 60. a booster pump; 70. a heating device; 80. a water-vapor separation member; 90. a first detection device;
91. a float; 92. a proximity switch; 100. a second detection device; 110. an interactive element; 120. and a controller.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.
The water purifying equipment is switched between the two operations of water preparation and flushing by controlling the valve piece to be switched on or cut off the flushing flow channel, the flushing flow channel is switched on when the water purifying equipment is in a water preparation mode, and the flushing flow channel is cut off when the water purifying equipment is in a flushing mode.
The filtration mode of the water purification device in the water production process mainly comprises two modes, namely dead-end filtration and cross-flow filtration. The main difference between the implementation of dead-end filtration and cross-flow filtration is whether the valve member connecting the flushing port of the filter element has a small bore flow channel. When the valve piece does not have the aperture runner (the flow that washes the runner is greater than the flow of aperture runner), when the valve piece is controlled to stop self when washing the runner (system water operation), the water in filtering piece is whole to form the clean water retention in the water purification case at the reverse osmosis filter piece under the effect of filtering piece internal pressure, and the filtration mode is dead-end filtration this moment (can not wash filtering piece when making water). When the valve piece is provided with the small-hole flow passage, when the valve piece is stopped to wash the flow passage (water making operation), most of water in the filter piece is subjected to reverse osmosis filtration under the action of the internal pressure of the filter piece to form purified water and is retained in the water purifying tank due to the decompression effect of the small-hole flow passage, and a small part of water flows through the small-hole flow passage and cleans the surface of the filter piece to form concentrated water and then flows back to a concentrated water collecting region through the small-hole flow passage, so that the filtering mode is cross-flow filtering (the filter piece is cleaned to a certain degree during water making). When the valve piece is controlled to be communicated with the self flushing flow channel (flushing operation), the internal pressure of the filtering piece is released, most of water flows pass through the interior of the filtering piece to flush the filtering piece to form concentrated water (only a small part of water flow can pass through the reverse osmosis filtering piece to form purified water), and then the concentrated water flows back to the concentrated water collecting region through the valve piece, so that the flushing of the filtering piece is realized.
The filterable water purification unit of dead end is because the valve member is in complete closed state at the system water in-process, the filter chamber only has pressure differential before and after the filter core filters, therefore water is whole through filter core surface reverse osmosis, do not wash and then do not produce dense water to the filter core surface, the dense water volume of play production is comparatively invariable when washing the filter core, the condition that dense water spills over to former water tank from dense water tank is less appeared, but because its filter piece only once washes, filter the state decay soon and influence and filter the piece life-span, consequently, filtered and substituted by the cross-flow gradually.
The cross-flow filtering water purifying equipment continuously cleans the filtering piece to a certain degree in the water making process to generate certain concentrated water, and the water making is suspended midway in the water making process and the flushing flow channel of the valve piece is conducted to flush the filtering piece so as to generate concentrated water again. To solve this problem, the volume of the concentrated water tank is usually increased, but this solution increases the volume of the whole machine or decreases the volume of the original water tank to reduce the water volume of the whole machine. The water purification unit that this application provided under the condition that does not change dense water tank volume, complete machine volume and former water tank volume, has solved when the cross-flow filters, and the use that dense water overflows the former water tank easily and leads to mixes the problem of water preparation water purification, helps reducing equipment improvement cost, reduces the complete machine volume, improves user experience good feeling.
Referring to fig. 1, 2 and 3, the present application provides a water purifying apparatus 1000, which includes a water storage tank 10, a water pump 20, a filter element 30, a valve element 40, a first detecting device 90 and a controller 120, wherein the water storage tank 10 has an independent concentrate region 11 and a raw water region 12, and an overflow channel 13 communicating the concentrate region 11 and the raw water region 12, the water pump 20 is communicated between a raw water inlet of the filter element 30 and the raw water region 12, and the valve element 40 is communicated between a flushing port of the filter element 30 and the concentrate region 11. The first detection device 90 is used for acquiring raw water level characteristics of the raw water zone 12, the controller 120 is in communication connection with the water pump 20, the valve element 40 and the first detection device 90, and controls the valve element 40 to switch between a low flow state for performing a water making operation and a high flow state for performing a flushing operation according to the raw water level characteristics, and after the valve element 40 is in the high flow state and keeps the first duration, the water pump 20 is turned off and a user is notified to change water.
Understandably, the water purifying apparatus 1000 further includes a purified water tank 50, and the purified water tank 50 is disposed at the purified water outlet of the filter 30. The water storage tank 10, the water pump 20, the filter element 30 and the valve element 40 are sequentially communicated to form a circulation water path of raw water to realize flushing of the filter element 30. Understandably, the filter member 30 has a raw water inlet for connecting with the water pump 20 for allowing raw water to enter inside itself, a purified water outlet connected with the purified water tank 50 for discharging the generated purified water to the purified water tank 50, and a flushing port connected with the valve member 40 for allowing the raw water entering the filter member 30 to flow from the valve member 40 to the concentrated water zone 11.
In the water purifying apparatus 1000, when water is produced, the controller 120 controls the valve element 40 to switch to the low flow rate state (i.e. the flushing flow path is cut off), the water pump 20 is started to feed raw water in the raw water region 12 into the filter element 30, a part of the raw water is filtered by the filter element 30 to generate purified water, the purified water is stored in the purified water tank 50, a part of the raw water flows to the valve element 40, and the filter element 30 is cleaned to a certain degree to generate concentrated water, and the concentrated water flows back to the concentrated water region 11. When the valve member 40 is in a large flow state during flushing, the water pump 20 is started and sends raw water in the raw water region 12 into the filter member 30, most raw water flows to the valve member 40 and flushes the filter member 30 to generate concentrated water and flows back to the concentrated water region 11, and a small part of raw water is filtered by the filter member 30 to generate purified water and is stored in the purified water tank 50.
The water level of the raw water zone 12 is continuously decreased during water production, the first detection device 90 monitors the water level change of the raw water zone 12 and obtains the raw water level characteristic, and the controller 120 determines whether the water level of the raw water zone 12 is decreased to the automatic flushing water level according to the raw water level characteristic. When the water level in the raw water zone 12 is lowered to the automatic flushing water level, the water purifying apparatus 1000 enters the automatic flushing operation. Specifically, the controller 120 controls the valve element 40 to switch to a large flow rate state (i.e., the flushing flow path is turned on), the water pump 20 sends the raw water remaining in the raw water region 12 to the filter element 30, and the concentrated water formed by flushing the filter element 30 flows back to the concentrated water region 11 through the valve element 40. When the flushing is completed, the controller 120 turns off the water pump 20, and notifies the user to clean the water storage tank 10 and refill the raw water. Specifically, when the valve member 40 is maintained in the large flow rate state for the first time period, the controller 120 controls the valve member 40 to be switched to the small flow rate state, and controls the water pump 20 to be turned off, and notifies the user of the water change.
The embodiment of this application, inform the user immediately after washing finishing to trade water, even if wash the in-process because the water storage volume in concentrated water district 11 leads to the concentrated water to spill over to the former water tank inadequately and mix water appears, mix water and also be cleared up, used water is the raw water of trading again when making water next time, does not exist the condition that utilizes muddy water preparation water purification. From this, can solve because of dense water overflows the former water tank and leads to mixing water preparation water purification, the user that leads to uses the problem that experience feels not good, need not increase the dense water tank volume simultaneously, changes the complete machine volume, changes former water tank volume etc. improves cost reduction, helps the miniaturization of complete machine structure and increases the whole machine water yield.
The valve member 40 can be switched to a high flow state when energized and to a low flow state when de-energized. When the valve is powered on, the coil of the valve element 40 is electrified and attracts the valve core to open the flushing flow passage, and when the valve is powered off, the valve core props the flushing flow passage. The controller 120 may control the switching of the state of the controller 120 by controlling the on/off of the valve element 40. The valve member 40, the filtering member 30, the clean water tank 50 and the water pump 20 are common components in the art, and are not limited or described in detail herein.
The controller 120 may be an industrial personal computer, a central processing unit, a microprocessor, a single chip, or other components or devices with processing functions, and is a common component in the field, which is not specifically limited and described herein. And the communication connection comprises a wireless connection and a wired connection. The wireless connection comprises wifi, hiFi, bluetooth, 2.4GHZ, 3G, 4G and 5G connection. The wired connection includes, but is not limited to, an ethernet connection, an electrical connection, a fiber optic connection, and the like.
In some embodiments, with continued reference to fig. 1, the water purifying apparatus 1000 further includes a second detecting device 100, the water purifying apparatus 1000 further includes a purified water tank 50, the purified water tank 50 is disposed at the purified water outlet of the filtering element 30, the second detecting device 100 is used for obtaining a purified water level characteristic of the purified water tank 50, and the controller 120 is further communicatively connected to the second detecting device 100 and further controls the state switching of the valve element 40 and the operation of the water pump 20 according to the purified water level characteristic.
In the present embodiment, the water level of the fresh water tank 50 is detected using the second detection device 100, and a fresh water level characteristic is obtained. The controller 120 can determine whether the purified water tank 50 is short of water according to the purified water level characteristics, so as to control the valve element 40 and the water pump 20, and further control the water purifying apparatus 1000 to produce or not produce water. When the purified water level characteristic indicates that the purified water tank 50 is short of water, water production is required, and accordingly, the controller 120 further obtains the raw water level characteristic, and judges whether the water level of the raw water area 12 is higher than the automatic flushing water level according to the raw water level characteristic, if so, it indicates that the raw water amount in the raw water area 12 is sufficient and water production can be performed, and then the valve element 40 is controlled to be switched to the low-flow state, and the water pump 20 is started. When the water level characteristics of the purified water indicate that the purified water tank 50 is not short of water or full of water or the water level of the raw water region 12 is not higher than the automatic flushing water level, water production is not needed or water production is not possible (raw water is not sufficient), the water pump 20 is correspondingly controlled to be closed to produce water, or the valve element 40 is controlled to be switched to a large flow state to flush the filter element 30, and then a user replaces the user with sufficient raw water to produce water.
Therefore, sufficient purified water can be ensured to be reserved in the purified water tank 50, the water purifying tank is convenient for users to use, and the situation that the water consumption of the users is influenced due to insufficient purified water is avoided as much as possible.
Referring to fig. 6, a logic control diagram of the water purifying apparatus 1000 in an embodiment is shown, and specifically, the text of the figure is omitted for brevity.
In the above embodiments, the first detecting device 90 and the second detecting device 100 may include an ultrasonic liquid level meter, a gravity sensing switch, an infrared sensor, and the like, and the specific form thereof is not limited and will not be described herein. The specific locations of the first detection device 90 and the second detection device 100 are not limited, and may be respectively disposed on the water storage tank 10 and the purified water tank 50, or disposed in the housing of the water purifying apparatus 1000, as long as the liquid level characteristics can be obtained.
In some embodiments, with continued reference to fig. 1, the water purifying apparatus 1000 further includes an interactive element 110, the interactive element 110 is configured to obtain a powerful flushing command triggered by a user, and the controller 120 is communicatively connected to the interactive element 110 and further controls the state switching of the valve element 40 according to the powerful flushing command.
The interaction element 110 may be a button, a knob, a remote controller, a touch screen, etc. disposed on the water purifying apparatus 1000. When the user needs to start the powerful flushing, the interaction part 110 is operated and a powerful flushing instruction is triggered, and the controller 120 receives the powerful flushing instruction and executes a powerful flushing program. Specifically, the control valve 40 is switched to the high flow state to put the water purifying apparatus 1000 into the flushing stage. Further, after receiving the powerful flushing instruction, the controller 120 first determines whether the water level of the raw water region 12 is not lower than the powerful flushing water level according to the raw water level characteristic, and if not, executes the powerful flushing program to control the valve element 40 to switch to the large flow state and keep for a certain period of time. After the flush is complete, the pump 20 is turned off and the user is notified to change the water. Generally, when the powerful flushing is performed, not only the filtering member 30 is flushed and cleaned, but also the pipeline, the water pump 20 and the like are flushed, so that the flushing time is long, a large amount of water is required, that is, the powerful flushing water level is higher than the automatic flushing water level.
At this moment, the user can start washing and washing water purification unit 1000 according to the demand of self, so not only can improve the clean dynamics to water purification unit 1000, can also satisfy the diversified demand of user, further improve the user and use the body and feel good feeling.
In some preferred embodiments, with continued reference to fig. 4 and 5, the first detection device 90 includes a proximity switch 92 and a float 91, the water storage tank 10 is configured with a mounting channel 16 communicated with the bottom of the raw water region 12, the float 91 is located in the mounting channel 16, the proximity switch 92 is arranged corresponding to the mounting channel 16, the float 91 enters or exits a sensing range of the proximity switch 92 when ascending and descending along the mounting channel 16 according to a water level change in the mounting channel 16, the proximity switch 92 is electrically connected with the controller 120, and the raw water level is characterized by a sensing signal generated by the proximity switch 92.
Since the installation path 16 communicates with the bottom of the raw water region 12, the water level change in the installation path 16 can reflect the water level change in the raw water region 12. When the water level in the installation passage 16 changes, the float 91 goes into or out of the sensing range of the proximity switch 92 as the water level rises and falls. When a plurality of liquid levels (the automatic flushing water level and the powerful flushing water level are involved in the embodiment of the present application) of the raw water area 12 need to be monitored, one proximity switch 92 may be disposed corresponding to each liquid level, when the float 91 rises to the liquid level along with the water level of the raw water area 12, the proximity switch 92 at the position can sense and generate a first sensing signal, and when the float is far away from the liquid level, the proximity switch 92 at the position cannot sense and the proximity switch 92 at the position generates a second sensing signal. When the controller 120 receives a first sensing signal generated by the proximity switch 92 at a certain level, it determines that the water level in the raw water region 12 is lowered to the corresponding level.
In this way, the proximity switch 92 senses the range of the float 91 to obtain the water level state of the raw water area 12, and the structure is simple and convenient.
Of course, the specific logic of the controller 120 for determining the water level of the raw water region 12 according to the sensing signal generated by the proximity switch 92 is not limited to the above logic.
In one embodiment, the height of the installation channel 16 is less than the depth of the raw water zone 12 and is within the influence of the proximity switch 92 when the float 91 is at its highest position.
At this time, the float 91 ascends and descends within the installation passage 16 by a distance less than the depth of the raw water zone 12. When the float 91 rises to the highest position, the water level of the raw water region 12 may be equal to or higher than the height of the installation channel 16, when the float 91 is at the highest position or at a height near the highest position, the water level may be within a sensing range of the proximity switch 92 (e.g., AB range in fig. 4 and 5), the proximity switch 92 may generate a first sensing signal, which may indicate that the water level of the raw water region 12 is higher than the liquid level corresponding to the proximity switch 92 (e.g., automatic flush water level, strong flush water level), when the float 91 falls beyond the sensing range of the proximity switch 92 (e.g., BC range in fig. 4 and 5), the proximity switch 92 may generate a second sensing signal, which may indicate that the water level of the raw water region 12 is at or lower than the liquid level corresponding to the proximity switch 92, and the controller 120 may not act upon receiving the first sensing signal of the proximity switch 92, but may start a corresponding flush procedure (automatic flush procedure or strong flush procedure) upon receiving the second sensing signal of the proximity switch 92.
In a specific application, the relation between the water level of the raw water region 12 and the automatic flushing water level can be detected by only one proximity switch 92 and one floater 91. Then the relation between the water level of the raw water area 12 and the effective flushing water level is detected by other liquid level sensors, and the specific setting mode is not limited. The specific logic of the controller 120 for determining the water level of the raw water region 12 according to the sensing signal generated by the proximity switch 92 is not limited as long as the monitoring of each water level can be realized.
Specifically, with continued reference to fig. 3, the inner wall of the raw water region 12 defined in the water storage tank 10 is recessed to form a slot extending to the bottom of the water storage tank 10, the slot is configured to form a mounting channel 16, and the float 91 is liftably positioned in the slot. At this time, the neck is communicated with the raw water region 12, and when the water level in the raw water region 12 changes, the water level in the neck also changes, and is sensed by the proximity switch 92 in response to the rise and fall of the float 91.
The installation channel 16 is formed by the clamping groove, and the structure is simple. Of course, the installation channel 16 may be configured outside the water storage tank 10, and is not limited in particular.
In some embodiments, with continued reference to fig. 3, the outlet tank includes a tank 14 and a partition 15, the partition 15 being located within the tank 14 and dividing the tank 14 into the concentrated water zone 11 and the raw water zone 12, the top of the partition 15 being lower than the top of the tank 14 to configure a compartment that is an overflow 13.
At this time, a raw water region 12 and a concentrated water region 11 are formed by using a box body 14 and a partition plate 15, so that the structure is simple and convenient, and the cleaning is convenient. When the water storage space of the concentrated water zone 11 is smaller than the amount of concentrated water generated in the flushing process, the concentrated water can overflow from the concentrated water zone 11 to the raw water zone 12 through the top of the partition 15.
In one embodiment, the water purifying apparatus 1000 further comprises an interactive screen, the interactive screen is in communication with the controller 120, and the interactive screen displays information notifying the user of water change under the control of the controller 120. The interactive screen may be a touch display screen, an LCD display screen, an LED display screen, and the like, and is not limited specifically.
In addition, referring to fig. 2, the water purifying apparatus 1000 further includes a booster pump 60, a heating device 70, and a water-vapor separator 80, wherein the booster pump 60 is connected to the purified water outlet of the purified water tank 50 and the inlet of the heating device 70, the water-vapor separator 80 is connected to the outlet of the heating device 70 and the overflow port of the purified water tank 50, the overflow port is located at the top of the purified water tank 50, and the water-vapor separator 80 has a water outlet communicated with the outside, and the water outlet is used for supplying water to a user. The booster pump 60, the heating device 70 and the water-vapor separating member 80 are common components in the art, and are not limited and described herein.
Based on the same inventive concept, please refer to fig. 7, some embodiments of the present application further provide a control method of a water purifying apparatus 1000, comprising the following steps:
s1, acquiring raw water level characteristics of a raw water area 12 in a water storage tank 10;
s2, judging whether the water level of the raw water area 12 is at an automatic flushing water level or not according to the raw water level characteristics;
s3, if so, switching the valve element 40 to a large-flow state and keeping the first duration;
s4, the water pump 20 is turned off, and the user is informed to change the water.
The control method of the water purifying apparatus 1000 provided in the embodiment of the present application can be applied to, but not limited to, the water purifying apparatus 1000 described in the above embodiments, and can also be applied to the existing water purifying apparatus 1000. For convenience of description, the method is applied to the water purifying apparatus 1000 described in the above embodiments as an example.
The water purifying apparatus 1000 includes a water storage tank 10, a water pump 20, a filtering member 30, a valve member 40, a first detecting device 90 and a controller 120, wherein the water storage tank 10 has a concentrated water region 11 and a raw water region 12 which are independent, and an overflow passage 13 communicating the concentrated water region 11 and the raw water region 12, the water pump 20 is communicated between a raw water inlet of the filtering member 30 and the raw water region 12, and the valve member 40 is communicated between a flushing port of the filtering member 30 and the concentrated water region 11. The first detection device 90 is used for acquiring raw water level characteristics of the raw water zone 12, the controller 120 is in communication connection with the water pump 20, the valve element 40 and the first detection device 90, and controls the valve element 40 to switch between a low flow state for performing a water making operation and a high flow state for performing a flushing operation according to the raw water level characteristics, and after the valve element 40 is in the high flow state and keeps the first duration, the water pump 20 is turned off and a user is notified to change water.
In this embodiment, the main execution body of the control method of the water purifying apparatus 1000 is the controller 120. When water is produced, the controller 120 controls the valve element 40 to switch to the low flow state, the water pump 20 is started to feed raw water in the raw water region 12 into the filter element 30, part of the raw water is filtered by the filter element 30 to produce purified water which is stored in the purified water tank 50, and part of the raw water flows to the valve element 40 and cleans the filter element 30 to produce concentrated water which flows back to the concentrated water region 11. When the valve member 40 is in a large flow state during flushing, the water pump 20 is started and sends raw water in the raw water region 12 into the filter member 30, most raw water flows to the valve member 40 and flushes the filter member 30 to generate concentrated water and flows back to the concentrated water region 11, and a small part of raw water is filtered by the filter member 30 to generate purified water and is stored in the purified water tank 50.
When the water level of the raw water region 12 is continuously decreased during water production, the first detection device 90 monitors the water level change of the raw water region 12 and obtains the raw water level characteristics, and the controller 120 determines whether the water level of the raw water region 12 is reduced to the automatic flushing water level according to the raw water level characteristics obtained by the first detection device 90. When the water level in the raw water zone 12 is lowered to the automatic washing water level, the controller 120 controls the water purifying apparatus 1000 to enter the automatic washing stage.
Specifically, the controller 120 controls the valve element 40 to switch to the high flow rate state and keep the high flow rate state for the first time period, the water pump 20 sends the raw water remaining in the raw water region 12 to the filter element 30, and the concentrated water formed after the filter element 30 is washed flows back to the concentrated water region 11 through the valve element 40. When the flushing is completed, the controller 120 turns off the water pump 20, and notifies the user to clean the water storage tank 10 and refill the raw water.
Therefore, the user is immediately informed to change water after the flushing is finished, even if the concentrated water overflows to the raw water tank due to the fact that the water storage volume of the concentrated water region 11 is insufficient in the flushing process, the mixed water is also cleaned, the water used in the next water making process is the raw water which is changed again, and the situation that the water is used for preparing the purified water by the mixed water does not exist. From this, can solve because of dense water overflows the former water tank and leads to mixing water preparation water purification, the user that leads to uses the problem that experience feels not good, need not increase the dense water tank volume simultaneously, changes the complete machine volume, changes former water tank volume etc. improves cost reduction, helps the miniaturization of complete machine structure and increases the whole machine water yield.
The "first time period" is set in relation to the amount of water remaining when the raw water zone 12 is at the automatic flush water level. Can be calculated by the following formula: v Is low in ＝V Store +(Q+Q 1 )*t 1 In ml. Wherein, V Is low in Volume (in ml) of water for automatic flushing 1 The flow rate (unit ml/min) of flushing water is measured for a new filter element Store The volume of the water (unit ml) after washing, Q the flow rate (unit ml/min) of pure water produced in the washing process, and t 1 Is the auto flush time (in units of min) (i.e., the first time period). V Store Greater than (3 × Q) 0 /60) ml, wherein, Q 0 The filter element is switched from the water production state to the flushing state, and the flushing water flow (unit ml/min) which is used for about 3s is needed after the pressure is released.
In a further embodiment, with continued reference to fig. 7, the control method of the water purifying apparatus 1000 further includes the steps of:
s5, acquiring the purified water level characteristic of the purified water tank 50;
s6, judging whether the water shortage of the water purifying tank 50 is met at the same time and the water level of the raw water area 12 is higher than the automatic flushing water level according to the purified water level characteristic and the raw water level characteristic;
and S7, if so, starting the water pump 20 and switching the valve member 40 to a low-flow state.
In this embodiment, the water purifying apparatus 1000 further includes a purified water tank 50 and a second detecting device 100, the purified water tank 50 is disposed at the purified water outlet of the filtering member 30, the second detecting device 100 is used for obtaining the purified water level characteristic of the purified water tank 50, and the controller 120 is further connected to the second detecting device 100 in a communication manner.
After the water purifying apparatus 1000 is turned on, the controller 120 obtains the purified water level characteristic from the second detecting device 100 and the raw water level characteristic from the first detecting device 90. When the purified water level characteristic indicates that the purified water tank 50 is short of water and the raw water level characteristic indicates that the raw water area 12 has a water level higher than the automatic flushing water level, indicating that purified water needs to be prepared and the amount of raw water is sufficient, the controller 120 enters a water preparation program, starts the water pump 20, and switches the valve element 40 to a low-flow state.
When the water purifying tank 50 is not lack of water and the water level of the raw water area 12 is higher than the automatic flushing water level, the water pump 20 is turned off if water production is not needed. When the purified water tank 50 is not short of water and the water level of the raw water area 12 is at the automatic flushing water level, it indicates that water production is not needed but the flushing stage needs to be performed, and steps S1 to S4 are performed. When the water is not available in the water purification tank 50 and the water level of the raw water area 12 is lower than the automatic flushing water level, indicating that the water is flushed, the step S4 is executed to remind the user to change the water (when the water purification tank is started, it is detected that the water level of the raw water area 12 is lower than the automatic flushing water level, indicating that the water is not changed by the user). When the purified water tank 50 is short of water and the water level of the raw water zone 12 is at the automatic flushing water level, steps S1 to S4 are performed.
Therefore, sufficient purified water can be ensured to be reserved in the purified water tank 50, the water purifying tank is convenient for users to use, and the situation that the water consumption of the users is influenced due to insufficient purified water is avoided as much as possible.
In a further embodiment, with continued reference to fig. 7, the control method of the water purifying apparatus 1000 further includes the steps of:
s8, receiving a powerful flushing instruction triggered by a user;
s9, judging whether the water level of the raw water area 12 is not lower than a powerful flushing water level according to the obtained raw water level characteristics, wherein the powerful flushing water level is higher than the automatic flushing water level;
and S10, if so, switching the valve element 40 to a large flow state, keeping a second time length longer than the first time length, and then executing the step S4.
In this embodiment, the water purifying apparatus 1000 further includes an interaction element 110, the interaction element 110 is configured to obtain a powerful flushing instruction triggered by a user, and the controller 120 is in communication connection with the interaction element 110 and further controls the state switching of the valve element 40 according to the powerful flushing instruction. The interaction member 110 may be a button, a knob, a remote controller, a touch screen, etc. disposed on the water purifying apparatus 1000. When the user needs to start the powerful flushing, the interaction part 110 is operated and a powerful flushing instruction is triggered, and the controller 120 receives the powerful flushing instruction and executes a powerful flushing program.
After receiving the forced flushing instruction, the controller 120 first determines whether the water level of the raw water region 12 is not lower than the forced flushing water level according to the raw water level characteristic, and if not, executes the forced flushing procedure, controls the valve element 40 to switch to the large flow state, and keeps the large flow state for a second time period. After the flush is complete, the pump 20 is turned off and the user is notified to change water. When washing by force, not only wash the clearance to filtering piece 30, still wash pipeline, water pump 20 etc. also, consequently wash time comparatively long, the water yield that requires is more.
At this moment, the user can start the washing and washing to water purification unit 1000 according to the demand of self, so not only can improve the clean dynamics to water purification unit 1000, can also satisfy the diversified demand of user, further improves the user and uses the body to feel good.
In order to ensure a sufficient flushing time, the water from the filter element 30 can overflow to the raw water area 12 after being discharged to the concentrated water area 11 via the valve element 40, and a continuous water supply can be provided. To ensure a continuous water supply, the powerful flush level should be greater than the sum of the total water volume of the piping, filter 30, pump 20, concentrate 11, and automatic flush level. In order to enable the water quantity of the powerful flushing water level to meet the requirements, the water adding quantity V0 of the water outlet tank is as follows: v 0 ≥V 3 +V 1 +Q*V 3 /Q 0 High effectTime of flushing t 2 ＝(V 0 -V 1 -V 2 ) /Q (i.e., second duration), where V 1 For automatic flushing of liquid level and water quantity (unit ml), V 2 The filter element 30 and the water storage volume (ml) of the pipeline, Q is the flow rate (ml/min) of pure water produced in the washing process, and Q is the flow rate of pure water produced in the washing process 0 The flow (unit ml/min) of the flushing water used for about 3s is needed for switching the filter element from the water production state to the flushing state and releasing the pressure 3 Is 11 volumes (unit ml) of the concentrated water area, and Q is within 10 percent (unit ml/min) of the flow rate of the normally prepared purified water.
Further, after step S8, the method further includes: if not, the valve member 40 is switched to the large flow rate state, and when the water level is reduced to the automatic flushing water level, the valve member is flushed for a first time period, and then step S4 is executed. That is to say, when the water level of the raw water zone 12 does not reach the powerful flushing water level, the flushing is performed, and when the water level of the raw water zone 12 drops to the automatic flushing liquid level, the automatic flushing mode is entered, and the water change is prompted after the automatic flushing is completed.
According to the control method of the water purifying equipment 1000, the user is immediately informed to change water after the flushing is finished, even if the water is mixed due to the fact that the concentrated water overflows to the raw water tank due to the fact that the water storage volume of the concentrated water region 11 is insufficient in the flushing process, the mixed water is also cleaned, the used water is the raw water which is changed again when water is made next time, and the situation that water is prepared by the mixed water does not exist. From this, can solve because of dense water overflows the former water tank and leads to mixing water preparation water purification, the user that leads to uses the problem that experience feels not good, need not increase the dense water tank volume simultaneously, changes the complete machine volume, changes former water tank volume etc. improves cost reduction, helps the miniaturization of complete machine structure and increases the whole machine water yield.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A water purification unit, characterized in that includes:
a water storage tank (10) having a concentrated water zone (11) and a raw water zone (12) which are independent from each other, and an overflow passage (13) communicating the concentrated water zone (11) and the raw water zone (12);
the water pump (20) and the filter element (30), the water pump (20) is communicated between the raw water inlet of the filter element (30) and the raw water area (12);
a valve member (40) communicated between the flushing port of the filter member (30) and the concentrated water area (11);
the first detection device (90) is used for acquiring the raw water level characteristics of the raw water area (12); and
and the controller (120) is in communication connection with the water pump (20), the valve element (40) and the first detection device (90), controls the valve element (40) to be switched between a low-flow state for executing a water making operation and a high-flow state for executing a flushing operation according to the raw water level characteristic, and closes the water pump (20) and informs a user of changing water after the valve element (40) is in the high-flow state and is kept for a first time period.
2. The water purifying apparatus according to claim 1, further comprising a purified water tank (50) and a second detecting device (100), wherein the purified water tank (50) is disposed at the purified water outlet of the filter element (30), and the second detecting device (100) is used for obtaining the purified water level characteristic of the purified water tank (50);
the controller (120) is in communication connection with the second detection device (100), and controls the state switching of the valve member (40) and the action of the water pump (20) according to the purified water level characteristics.
3. Water purification unit according to claim 1, further comprising an interaction element (110), the interaction element (110) being adapted to obtain a user-triggered burst flush instruction;
the controller (120) is in communication connection with the interaction element (110) and also controls the state switching of the valve element (40) according to the intensive flushing instruction.
4. The water purifying apparatus according to any one of claims 1-3, wherein the first detecting means (90) comprises a proximity switch (92) and a float (91), the water storage tank (10) is configured with a mounting channel (16) communicated with the bottom of the raw water region (12), the float (91) is positioned in the mounting channel (16), the proximity switch (92) is arranged corresponding to the mounting channel (16), and the float (91) enters or exits a sensing range of the proximity switch (92) when ascending or descending along the mounting channel (16) along with the water level change in the mounting channel (16);
the proximity switch (92) is electrically connected with the controller (120), and the raw water level characteristic is an induction signal generated by the proximity switch (92).
5. Water purification apparatus according to claim 4, wherein the height of the installation channel (16) is smaller than the depth of the raw water zone (12) and is within the sensing range of the proximity switch (92) when the float (91) is in its highest position.
6. Water purification apparatus according to claim 5, wherein the inner wall of the storage tank (10) defining the raw water zone (12) is concavely formed with a catch extending to the bottom of the storage tank (10), the catch being configured to form the mounting channel (16).
7. A water purification apparatus as claimed in any one of claims 1 to 3, wherein the storage tank (10) comprises a tank (14) and a partition (15), the partition (15) being located within the tank (14) and dividing the tank (14) into the concentrate region (11) and the raw water region (12), the partition (15) having a top lower than the top of the tank (14) so as to be configured to form a zone as the spillway (13).
8. A control method of a water purifying apparatus, characterized in that the water purifying apparatus comprises:
a water storage tank (10) having a concentrated water zone (11) and a raw water zone (12) which are independent from each other, and an overflow passage (13) communicating the concentrated water zone (11) and the raw water zone (12);
the water pump (20) and the filter element (30), the water pump (20) is communicated between the raw water inlet of the filter element (30) and the raw water area (12);
a valve member (40) which is communicated between the flushing port of the filter member (30) and the concentrated water area (11);
the first detection device (90) is used for acquiring the raw water level characteristics of the raw water area (12); and
a controller (120) communicatively connected to the water pump (20), the valve member (40) and the first detection device (90), for performing a control method of the water purification apparatus;
the control method of the water purification device comprises the following steps:
acquiring raw water level characteristics of a raw water area (12) in a water storage tank (10), and judging whether the water level of the raw water area (12) is at an automatic flushing water level or not according to the raw water level characteristics;
if yes, switching the valve member (40) to a large flow state for executing the flushing operation and keeping the valve member for a first time length;
the water pump (20) is turned off and the user is notified to change the water.
9. The control method of a water purifying apparatus according to claim 8, further comprising a purified water tank (50) and a second detecting device (100), wherein the purified water tank (50) is disposed at the purified water outlet of the filter member (30), and the second detecting device (100) is used for obtaining the purified water level characteristic of the purified water tank (50);
the control method of the water purification apparatus further includes:
acquiring the water level characteristics of the purified water tank (50);
judging whether the purified water tank (50) is short of water and the raw water area (12) is higher than the automatic flushing water level according to the purified water level characteristic and the raw water level characteristic;
if yes, the water pump (20) is started, and the valve piece (40) is switched to a low-flow state for executing water production operation.
10. The control method of the water purifying apparatus according to claim 8, further comprising an interactive element (110), wherein the interactive element (110) is used for acquiring a user-triggered powerful flushing command, and the controller (120) is in communication connection with the interactive element (110);
the control method of the water purification apparatus further includes:
receiving a powerful flushing instruction triggered by a user;
judging whether the water level of the raw water area (12) is not lower than a strong flushing water level according to the obtained raw water level characteristics, wherein the strong flushing water level is higher than the automatic flushing water level;
if yes, switching the valve member (40) to a large flow state and keeping a second time length, wherein the second time length is longer than the first time length;
the water pump (20) is turned off and the user is notified to change the water.
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