Cleaning structure, water purification system, control method and water purifier

Abstract

The invention provides a cleaning structure, a water purification system, a control method and a water purifier, the cleaning structure is used for cleaning rear carbon in a rear carbon accommodating cavity of the water purification system, the cleaning structure comprises a water inlet, a heating module and a first water outlet, the cleaning structure introduces water through the water inlet, and the heating module is used for heating the rear carbon in the rear carbon accommodating cavity. The heating module is used for heating water at the water inlet, and the first water outlet is used for being communicated with the rear carbon accommodating cavity so as to introduce the water heated by the heating module into the rear carbon accommodating cavity; the cleaning structure further comprises a water outlet communicated with the rear carbon containing cavity, and the water outlet can be opened and closed according to the set frequency so as to adjust the pressure in the rear carbon containing cavity. According to the technical scheme, after the water purifier is used for a period of time, trichloromethane can still be effectively removed through the rear carbon, then the drinking safety and health requirements of direct drinking water can be met, and the service life of the rear carbon is long.

Description

Technical Field

[0001] The present invention belongs to the technical field of water purification, and in particular relates to a cleaning structure, a water purification system, a control method and a water purifier. Background Art

[0002] The technology of removing chloroform by reverse osmosis water purifier is mainly realized through high-efficiency filtration system. The reverse osmosis water purifier has a PCC composite filter and a RO membrane filter. The PCC composite filter has a front carbon accommodating chamber and a rear carbon accommodating chamber. The front carbon accommodating chamber has a front carbon, and the rear carbon accommodating chamber has a rear carbon. The RO membrane filter has an RO membrane. Among them, the front carbon, RO membrane and rear carbon all have the effect of removing chloroform. After technical research, the reverse osmosis water purifier can remove chloroform during the initial use period, but the removal effect will be greatly attenuated and decreased after a period of use, and it cannot meet the water quality safety requirements. This technology is also the pain point of the entire reverse osmosis water purifier industry. Summary of the invention

[0003] Therefore, the present invention provides a cleaning structure, a water purification system, a control method and a water purifier, which can solve the technical problem in the prior art that the removal effect of chloroform by the water purifier is greatly attenuated and reduced after being used for a period of time.

[0004] In order to solve the above problems, the present invention provides a cleaning structure for cleaning the post-charcoal in the post-charcoal accommodating chamber of a water purification system, the cleaning structure comprising a water inlet, a heating module and a first water outlet, the cleaning structure introduces water through the water inlet, the heating module is used to heat the water at the water inlet, and the first water outlet is used to communicate with the post-charcoal accommodating chamber to introduce the water heated by the heating module into the post-charcoal accommodating chamber;

[0005] The cleaning structure further comprises a drain port communicated with the rear carbon containing chamber, wherein the drain port can be opened and closed at a set frequency to adjust the pressure in the rear carbon containing chamber.

[0006] In some embodiments, the heating module has a heating chamber having an inlet and an outlet, the heating module introduces water from the water inlet into the heating chamber through the inlet for heating, and the outlet serves as the first water outlet.

[0007] In some embodiments, the cleaning structure further comprises a heat exchanger;

[0008] The heat exchanger has a first heat exchange channel and a second heat exchange channel that can exchange heat with each other; one end of the first heat exchange channel is connected to the inlet, and the other end can be connected to the water inlet, so that the water inlet can be connected to the inlet through the first heat exchange channel; one end of the second heat exchange channel is used to communicate with the post-charcoal accommodating chamber, and the other end can be connected to the first water outlet, so that the first water outlet can be connected to the post-charcoal accommodating chamber through the second heat exchange channel.

[0009] In some embodiments, the cleaning structure further includes a first pipeline and a second pipeline; one end of the first pipeline is connected to the inlet, and the other end can be connected to the water inlet, so that the water inlet can be connected to the inlet through the first pipeline; one end of the second pipeline is used to communicate with the rear carbon accommodating chamber, and the other end can be connected to the first water outlet, so that the first water outlet can be connected to the rear carbon accommodating chamber through the second pipeline;

[0010] Wherein, the cleaning structure has at least two modes. In the first mode, the water inlet is connected to the flow inlet through the first pipeline of the first pipeline and the first heat exchange channel, and the first water outlet is connected to the post-charcoal containing chamber through the second pipeline and the second pipeline of the second heat exchange channel; in the second mode, the water inlet is connected to the flow inlet through the first pipeline and the first heat exchange channel of the first heat exchange channel, and the first water outlet is connected to the post-charcoal containing chamber through the second pipeline and the second heat exchange channel of the second heat exchange channel.

[0011] In some embodiments, the water inlet is connected to the other end of the first heat exchange channel and the other end of the first pipeline through a first valve structure, and the first valve structure is used to control the other end of the first pipeline between the other end of the first heat exchange channel and the other end of the first pipeline to be connected to the water inlet in the first mode, and to control the other end of the first heat exchange channel between the other end of the first heat exchange channel and the other end of the first pipeline to be connected to the water inlet in the second mode;

[0012] And / or, the first water outlet is connected to the other end of the second heat exchange channel and the other end of the second pipeline through a second valve structure, and the second valve structure is used to control the other end of the second heat exchange channel and the other end of the second pipeline to be connected to the first water outlet in the first mode, and to control the other end of the second heat exchange channel and the other end of the second pipeline to be connected to the first water outlet in the second mode.

[0013] In some embodiments, the drain outlet is opened and closed by an electrically controlled valve; the cleaning structure further includes a controller, and the controller is used to control the electrically controlled valve to open and close according to the set frequency, so that the drain outlet is opened and closed according to the set frequency.

[0014] The present invention also provides a water purification system, which comprises any one of the cleaning structures described above.

[0015] In some embodiments, the water purification system has an RO membrane filter, the RO membrane filter has a filtered water outlet, and the water inlet is connected to the filtered water outlet.

[0016] In some embodiments, when the heating module has a heating chamber, the heating chamber has an inlet and an outlet, and the heating module introduces water from the water inlet into the heating chamber through the inlet for heating, and the outlet serves as the first water outlet, the heating function of the heating chamber can be turned on or off; the water purification system has a water purification mode and a post-charcoal cleaning mode, wherein in the water purification mode, the heating function of the heating chamber is turned off; and in the post-charcoal cleaning mode, the heating function of the heating chamber is turned on.

[0017] In some embodiments, the water purification system further comprises a water purification branch;

[0018] The rear charcoal containing chamber has a second water outlet, and the second water outlet can be selectively connected to one of the drain port and the clean water branch through a third valve structure.

[0019] The present invention also provides a control method for the above-mentioned water purification system. When the water purification system also includes the above-mentioned water purification structure, and the heating chamber can turn on the heating function or turn off the heating function, the water purification system has a first post-charcoal cleaning mode. In the first post-charcoal cleaning mode, the cleaning structure is in a second mode, and the third valve structure controls the second water outlet to be connected to the drain port, and the heating chamber turns on the heating function, and the drain port is opened and closed according to a set frequency; wherein, when the chloroform content of the second water outlet is greater than or equal to a first preset value, the water purification system is controlled to enter the first post-charcoal cleaning mode, so that the water purification system continues to operate in the first post-charcoal cleaning mode until the chloroform content of the second water outlet drops below the second preset value, and then the water purification system is controlled to exit the first post-charcoal cleaning mode.

[0020] In some embodiments, the water purification system has a second post-charcoal cleaning mode. In the second post-charcoal cleaning mode, the cleaning structure is in the first mode, and the third valve structure controls the second water outlet to be connected to the drain outlet, and the heating chamber starts the heating function; wherein, when the chloroform content of the second water outlet is still greater than or equal to a first preset value after the water purification system runs in the first post-charcoal cleaning mode for a first preset time, the water purification system is controlled to enter the second post-charcoal cleaning mode, and the drain outlet is controlled to remain closed for a second preset time and then opened.

[0021] In some embodiments, after the water purification system exits the first post-carbon cleaning mode, the drain port is opened for a third preset time and then closed.

[0022] The present invention also provides a water purifier, which includes any one of the cleaning structures described above, or includes any one of the water purification systems described above.

[0023] The cleaning structure, water purification system, control method and water purifier provided by the present invention have the following beneficial effects:

[0024] 1. The heating module can heat the water at the water inlet into warm water, and then discharge the warm water into the post-charcoal containing chamber through the first water outlet, so as to clean the post-charcoal with warm water, such as real-time rinsing or soaking, etc., to stimulate the recovery of the adsorption activity of the post-charcoal to remove chloroform, and improve the adsorption performance of the post-charcoal. Among them, when warm water continues to flow into the post-charcoal containing chamber, the pressure in the post-charcoal containing chamber can be adjusted by controlling the drain port to open and close frequently according to the set frequency, so that the warm water entering the post-charcoal containing chamber can form a pressure difference shock wave jet, bubbles are generated in the water, and penetrate into the charcoal. The bubbles burst under the action of the pressure difference to form an impact force, thereby improving the cleaning effect of the post-charcoal. Among them, because the post-charcoal is cleaned, it can restore the adsorption activity to remove chloroform, so that the water purifier can still effectively remove chloroform through the post-charcoal after a period of use, thereby meeting the safety and health requirements of drinking water directly, and the life of the post-charcoal is also high.

[0025] 2. When the chloroform content at the second water outlet is still greater than or equal to the first preset value after the water purification system has been running in the first post-carbon cleaning mode for the first preset time, it means that the first post-carbon cleaning mode cannot clean the post-carbon. At this time, the water purification system is controlled to enter the second post-carbon cleaning mode, and the drain port is controlled to remain closed for the second preset time before opening. The second post-carbon cleaning mode of the water purification system is an immersion cleaning mode, in which the post-carbon is immersed in warm water during the time when the drain port remains closed, which is conducive to improving the ability of the post-carbon to effectively remove chloroform. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0027] Figure 1 It is a structural schematic diagram of a water purification system provided by one embodiment of the present invention.

[0028] The accompanying drawings are marked as follows:

[0029] 1. Heating module; 2. Heat exchanger; 3. First pipeline; 4. Second pipeline; 5. Post-charcoal containing chamber; 6. A three-way control valve; 7. Electric control valve; 8. B three-way control valve; 9. Chloroform probe; 10. Third switch valve; 11. Inlet; 12. Outlet; 13. First temperature sensing package; 14. Second temperature sensing package; 15. Regulating valve; 16. First switch valve; 17. Second switch valve; 18. Faucet; 19. Water purification branch; 20. RO membrane filter; 21. First heat exchange channel; 22. Second heat exchange channel; 23 , wastewater switch valve; 24, flow meter; 25, pressure-stabilizing pump; 31, one end of the first pipeline; 32, the other end of the first pipeline; 41, one end of the second pipeline; 42, the other end of the second pipeline; 51, drain outlet; 52, second water outlet; 100, heating chamber; 101, water inlet; 102, first water outlet; 121, wastewater outlet; 201, filtered water outlet; 211, one end of the first heat exchange channel; 212, the other end of the first heat exchange channel; 221, one end of the second heat exchange channel; 222, the other end of the second heat exchange channel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0033] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0034] See also Figure 1 As shown, according to an embodiment of the present invention, a cleaning structure is provided for cleaning the post-charcoal in the post-charcoal containing chamber 5 of the water purification system. The cleaning structure includes a water inlet 101, a heating module 1 and a first water outlet 102. The cleaning structure introduces water through the water inlet 101. The heating module 1 is used to heat the water in the water inlet 101. The first water outlet 102 is used to communicate with the post-charcoal containing chamber 5 to introduce the water heated by the heating module 1 into the post-charcoal containing chamber 5.

[0035] The cleaning structure further includes a drain port 51 connected to the rear carbon containing chamber 5. The drain port 51 can be opened and closed at a set frequency to adjust the pressure in the rear carbon containing chamber 5.

[0036] Since warm water has a better cleaning effect on the post-charcoal, in the above example, the heating module 1 can heat the water at the water inlet 101 into warm water, and then discharge the warm water into the post-charcoal containing chamber 5 through the first water outlet 102, so as to clean the post-charcoal with warm water, such as real-time rinsing or soaking, etc., to stimulate the recovery of the adsorption activity function of the post-charcoal to remove chloroform, and improve the adsorption performance of the post-charcoal. Among them, when warm water continues to flow into the post-charcoal containing chamber 5, the pressure in the post-charcoal containing chamber 5 can be adjusted by controlling the drain port 51 to be frequently opened and closed at a set frequency, so that the warm water entering the post-charcoal containing chamber 5 can form a pressure difference shock wave jet, bubbles are generated in the water, and penetrate into the charcoal. The bubbles burst under the action of the pressure difference to form an impact force, thereby improving the cleaning effect of the post-charcoal. Among them, since the post-carbon is cleaned, it can restore its adsorption activity to remove chloroform, so that the water purifier can still effectively remove chloroform through the post-carbon after a period of use, thereby meeting the safety and health requirements of direct drinking water, and the life of the post-carbon is also relatively high.

[0037] The aforementioned heating module may be an instant heating module, and the specific structure of the instant heating module is prior art and will not be described in detail here. Figure 1 As shown, the aforementioned heating module 1 may have a heating chamber 100, and the heating chamber 100 has an inlet 11 and an outlet 12. The heating module 1 introduces water from the water inlet 101 into the heating chamber 100 for heating through the inlet 11, and the outlet 12 serves as the aforementioned first water outlet 102. Among them, the technology of heating the water introduced into the heating chamber 100 is a prior art and will not be repeated here.

[0038] In some embodiments, Figure 1 As shown, the aforementioned cleaning structure may also include a heat exchanger 2. The heat exchanger 2 has a first heat exchange channel 21 and a second heat exchange channel 22 that can exchange heat with each other. One end 211 of the first heat exchange channel is connected to the inlet 11, and the other end 212 of the first heat exchange channel can be connected to the water inlet 101, so that the water inlet 101 can be connected to the inlet 11 through the first heat exchange channel 21. One end 221 of the second heat exchange channel is used to communicate with the rear carbon accommodating chamber 5, and the other end 222 of the second heat exchange channel can be connected to the first water outlet 102, so that the first water outlet 102 can be connected to the rear carbon accommodating chamber 5 through the second heat exchange channel 22.

[0039] In the above example, when the water inlet 101 is connected to the inlet 11 through the first heat exchange channel 21, and the first water outlet 102 is connected to the post-charcoal accommodating chamber 5 through the second heat exchange channel 22, the water at the water inlet 101 flows into the inlet 11 through the first heat exchange channel 21, and then flows into the heating chamber 100 for heating, and then flows into the post-charcoal accommodating chamber 5 through the second heat exchange channel 22 after heating. Among them, the heated water can exchange heat with the cold water in the first heat exchange channel 21 when flowing through the second heat exchange channel 22, so that the water temperature in the first heat exchange channel 21 is increased, so that the water in the first heat exchange channel 21 is more easily heated when it enters the heating chamber 100; in addition, the heat exchanger 2 has a temperature-averaging effect, and the temperature of the heated water decreases and becomes more uniform after flowing through the second heat exchange channel 22, which is conducive to improving the cleaning effect of the post-charcoal.

[0040] In some embodiments, Figure 1 As shown, the aforementioned cleaning structure may further include a first pipeline 3 and a second pipeline 4. One end 31 of the first pipeline is in communication with the inlet 11, and the other end 32 can be in communication with the water inlet 101, so that the water inlet 101 can be in communication with the inlet 11 through the first pipeline 3. One end 41 of the second pipeline is used to communicate with the rear carbon accommodating chamber 5, and the other end 42 can be in communication with the first water outlet 102, so that the first water outlet 102 can be in communication with the rear carbon accommodating chamber 5 through the second pipeline 4.

[0041] The cleaning structure of the present invention has at least two modes. In the first mode, the water inlet 101 is connected to the inlet 11 through the first pipeline 3 of the first pipeline 3 and the first heat exchange channel 21, and the first water outlet 102 is connected to the rear carbon accommodating chamber 5 through the second pipeline 4 of the second pipeline 4 and the second heat exchange channel 22. In the second mode, the water inlet 101 is connected to the inlet 11 through the first heat exchange channel 21 of the first pipeline 3 and the first heat exchange channel 21, and the first water outlet 102 is connected to the rear carbon accommodating chamber 5 through the second pipeline 4 of the second heat exchange channel 22.

[0042] In the above example, the cleaning structure can quickly heat water into warm water in the first mode, and then introduce the warm water into the rear carbon containing chamber 5 to clean the rear carbon, which is highly efficient. In the second mode, the cleaning structure can heat water into boiling water, and then cool the hot water into warm water through the heat exchanger 2 and introduce it into the rear carbon containing chamber 5 to clean the rear carbon. Among them, the heat exchanger 2 has a temperature equalization effect, and the temperature of the heated water is reduced and more uniform after passing through the second heat exchange channel 22, which is conducive to improving the cleaning effect of the rear carbon. Among them, users can select different modes according to actual needs so that the cleaning structure of the present invention can be applied to different application scenarios.

[0043] In some embodiments, the water inlet 101 can be connected to the other end 212 of the first heat exchange channel and the other end 32 of the first pipeline through a first valve structure. The first valve structure is used to control the other end 32 of the first pipeline, one of the other end 212 of the first heat exchange channel and the other end 32 of the first pipeline, to be connected to the water inlet 101 in the first mode, and the first valve structure is also used to control the other end 212 of the first heat exchange channel, one of the other end 32 of the first pipeline, to be connected to the water inlet 101 in the second mode.

[0044] In the above example, by setting the first valve structure, the water inlet 101 can be connected to the inlet 11 through the first pipeline 3 of the first pipeline 3 and the first heat exchange channel 21 in the first mode, and can be connected to the inlet 11 through the first pipeline 3 and the first heat exchange channel 21 in the second mode.

[0045] In a specific application example, Figure 1 As shown, the first valve structure may include a first switch valve 16 and a second switch valve 17, the water inlet 101 is connected to the other end 212 of the first heat exchange channel through the first switch valve 16, and the water inlet 101 is also connected to the other end 32 of the first pipeline through the second switch valve 17. In the first mode, the first switch valve 16 is closed and the second switch valve 17 is opened. In the second mode, the first switch valve 16 is opened and the second switch valve 17 is closed.

[0046] The first switch valve 16 and the second switch valve 17 can both be solenoid valves. Figure 1 As shown, a regulating valve 15 may be provided on the water inlet flow path of the first heat exchange channel 21 , and the regulating valve 15 is used to control the water inlet flow rate of the water inlet flow path of the first heat exchange channel 21 .

[0047] In some embodiments, the aforementioned first water outlet 102 is connected to the other end 222 of the second heat exchange channel and the other end 42 of the second pipeline through the second valve structure. The second valve structure is used to control the other end 42 of the second pipeline, which is the other end 222 of the second heat exchange channel and the other end 42 of the second pipeline, to be connected to the first water outlet 102 in the first mode, and the second valve structure is also used to control the other end 222 of the second heat exchange channel and the other end 42 of the second pipeline, which is the other end 222 of the second heat exchange channel and the other end 42 of the second pipeline, to be connected to the first water outlet 102 in the second mode.

[0048] In the above example, by setting the second valve structure, the first water outlet 102 can be connected to the rear carbon containing chamber 5 through the second pipe 4 of the second pipe 4 and the second heat exchange channel 22 in the first mode, and can be connected to the rear carbon containing chamber 5 through the second pipe 4 of the second heat exchange channel 22 in the second mode.

[0049] In a specific application example, Figure 1 As shown, the aforementioned second valve structure may include the ath three-way control valve 6, and the aforementioned first water outlet 102, the other end 222 of the second heat exchange channel, and the other end 42 of the second pipeline are respectively connected to the three interfaces of the ath three-way control valve 6 in a one-to-one correspondence. The second valve structure controls the other end 42 of the second pipeline, one of the other end 222 of the second heat exchange channel and the other end 42 of the second pipeline, to be connected to the first water outlet 102 in the first mode through the ath three-way control valve 6, and controls the other end 222 of the second heat exchange channel, one of the other end 42 of the second pipeline, to be connected to the first water outlet 102 in the second mode.

[0050] In order to realize the function that the drain port 51 can be opened and closed according to the set frequency, in some embodiments, Figure 1 As shown, the aforementioned drain port 51 can be opened and closed by the electric control valve 7. The aforementioned cleaning structure also includes a controller, which is used to control the electric control valve 7 to open and close according to the aforementioned set frequency, so that the drain port 51 is opened and closed according to the set frequency. Among them, the electric control valve 7 can be a solenoid valve, etc. The controller can be a processor or a PLC logic controller, etc. The technology of the controller controlling the electric control valve 7 to open and close according to the set frequency is a prior art and will not be repeated here.

[0051] like Figure 1As shown, the present invention also provides a water purification system, which includes any of the above-mentioned cleaning structures. Wherein, because the water purification system adopts the above-mentioned cleaning structure, the heating module 1 can heat the water at the water inlet 101 into warm water, and then discharge the warm water into the post-charcoal containing chamber 5 through the first water outlet 102, so as to clean the post-charcoal with warm water, such as real-time rinsing or soaking, etc., to stimulate the recovery of the adsorption activity function of the post-charcoal to remove chloroform, and improve the adsorption performance of the post-charcoal. Wherein, when warm water continues to flow into the post-charcoal containing chamber 5, the pressure in the post-charcoal containing chamber 5 can be adjusted by controlling the drain port 51 to be frequently opened and closed according to the set frequency, so that the warm water entering the post-charcoal containing chamber 5 can form a pressure difference shock wave jet, bubbles are generated in the water, and penetrate into the charcoal, and the bubbles burst under the action of the pressure difference to form an impact force, thereby improving the cleaning effect of the post-charcoal. Among them, since the post-carbon is cleaned, it can restore its adsorption activity to remove chloroform, so that the water purifier can still effectively remove chloroform through the post-carbon after being used for a period of time.

[0052] In some embodiments, Figure 1 As shown, the aforementioned water purification system has an RO membrane filter 20, and the RO membrane filter 20 has a filtered water outlet 201, and the RO membrane filter 20 discharges the filtered water through the filtered water outlet 201. Among them, the aforementioned water inlet 101 is connected with the filtered water outlet 201 to introduce water from the filtered water outlet 201.

[0053] In the above example, the water quality at the filter outlet of the RO membrane filter 20 is good, and the cleaning structure introduces water with better water quality from the filter outlet through the water inlet 101, which is beneficial to improving the cleaning effect of the post-carbon.

[0054] In some embodiments, when the heating module 1 has a heating chamber 100, the heating chamber 100 has an inlet 11 and an outlet 12, and the heating module 1 introduces water from the water inlet 101 into the heating chamber 100 for heating through the inlet 11, and the outlet 12 serves as the aforementioned first water outlet 102, the heating chamber 100 can turn on or off the heating function. Among them, the water purification system has a water purification mode and a post-charcoal cleaning mode. In the water purification mode, the heating chamber 100 turns off the heating function; and in the post-charcoal cleaning mode, the heating chamber 100 turns on the heating function.

[0055] In the above example, the heating chamber 100 turns off the heating function in the water purification mode, and the heating chamber 100 only serves as a pipe; the heating chamber 100 turns on the heating function in the post-charcoal cleaning mode, and the heating chamber 100 heats the water introduced into the interior. The normal water purification flow path and the post-charcoal cleaning flow path of the water purification system share the flow path of the heating chamber 100, which can simplify the flow path structure and reduce costs.

[0056] In some embodiments, Figure 1 As shown, the aforementioned water purification system also includes a water purification branch 19. The rear carbon containing chamber 5 has a second water outlet 52, and the second water outlet 52 can be selectively connected to one of the drain port 51 and the water purification branch 19 through a third valve structure, so that the second water outlet 52 can discharge sewage through the drain port 51, or discharge purified water through the water purification branch 19.

[0057] It should be noted here that the aforementioned water purification branch 19 has a water outlet tap 18 .

[0058] In a specific application example, Figure 1 As shown, the aforementioned third valve structure may include a b-th three-way control valve 8, and one end of the clean water branch 19, the second water outlet 52 and the drain 51 are respectively connected to the three interfaces of the b-th three-way control valve 8 in a one-to-one correspondence. The third valve structure controls the second water outlet 52 to be connected to one of the drain 51 and the clean water branch 19 through the b-th three-way control valve 8.

[0059] The present invention also provides a control method for the above-mentioned water purification system, when the cleaning structure further includes a first pipeline 3 and a second pipeline 4; one end 31 of the first pipeline is connected to the inlet 11, and the other end 32 can be connected to the water inlet 101, so that the water inlet 101 can be connected to the inlet 11 through the first pipeline 3; one end 41 of the second pipeline is used to communicate with the rear carbon accommodating chamber 5, and the other end 42 can be connected to the second water outlet 52, so that the second water outlet 52 can be connected to the rear carbon accommodating chamber 5 through the second pipeline 4; and the cleaning structure has at least two modes. In the first mode, the water inlet 101 is connected to the inlet 11 through the first pipeline 3 of the first pipeline 3 and the first heat exchange channel 21, and the second water outlet 52 is connected to the rear carbon accommodating chamber 5 through the second pipeline 4. The second pipeline 4 of the pipeline 4 and the second heat exchange channel 22 is connected to the post-charcoal accommodating chamber 5; in the second mode, the water inlet 101 is connected to the inlet 11 through the first heat exchange channel 21 of the first pipeline 3 and the first heat exchange channel 21, and the second water outlet 52 is connected to the post-charcoal accommodating chamber 5 through the second heat exchange channel 22 of the second pipeline 4 and the second heat exchange channel 22, and the heating chamber 100 can turn on the heating function or turn off the heating function. The water purification system has a first post-charcoal cleaning mode. In the first post-charcoal cleaning mode, the cleaning structure is in the aforementioned second mode, and the third valve structure controls the second water outlet 52 to be connected to the drain port 51, and the heating chamber 100 turns on the heating function, and the drain port 51 is opened and closed according to the set frequency.

[0060] Among them, when the chloroform content at the aforementioned second water outlet 52 is greater than or equal to the first preset value, the water purification system is controlled to enter the first post-charcoal cleaning mode, so that the water purification system continues to operate in the first post-charcoal cleaning mode until the chloroform content at the second water outlet 52 drops below the second preset value, and then the water purification system is controlled to exit the first post-charcoal cleaning mode.

[0061] In the above example, when the chloroform content of the second water outlet 52 is greater than or equal to the first preset value, it means that the chloroform content in the water purification system exceeds the standard, and the post-charcoal needs to be cleaned. At this time, the water purification system is controlled to enter the first post-charcoal cleaning mode to clean the post-charcoal. When the chloroform content drops below the second preset value, it means that the chloroform content in the water purification system meets the standard, and the water purification system is controlled to exit the first post-charcoal cleaning mode.

[0062] In some embodiments, the first preset value may be 15 mg / L, and the second preset value may be 10 mg / L.

[0063] In some embodiments, after the water purification system exits the first post-charcoal cleaning mode, the drain port 51 is opened for a third preset time and then closed to drain the sewage in the post-charcoal containing chamber 5. The third preset time may be 30 seconds.

[0064] In some embodiments, Figure 1 As shown, the aforementioned water purification system also includes a first temperature sensing package 13, a second temperature sensing package 14 and a chloroform probe 9, wherein the first temperature sensing package 13 is used to detect the outlet water temperature of the first water outlet 102. The second temperature sensing package 14 is used to detect the outlet water temperature of the second heat exchange channel 22. The chloroform probe 9 is used to detect the chloroform content of the second water outlet 52. The water purification system also includes a third switch valve 10, a flow meter 24 and a pressure regulating pump 25, and the third switch valve 10, the flow meter 24 and the pressure regulating pump 25 are all arranged on the water inlet pipeline of the RO membrane filter 20. Among them, the third switch valve 10 can be a solenoid valve, etc. The RO membrane filter 20 also has a wastewater outlet 121, and a wastewater switch valve 23 is provided on the pipeline of the wastewater outlet 121, and the wastewater switch valve 23 can be a solenoid valve, etc. The RO membrane filter 20 has an RO membrane in it to filter water through the RO membrane.

[0065] In the first post-carbon cleaning mode described above, the water outlet temperature of the aforementioned water outlet may be 50-60° C., and the flow rate in the water purification system may be 2.5-3.0 L / min.

[0066] In some embodiments, the aforementioned water purification system also has a second post-charcoal cleaning mode. In the second post-charcoal cleaning mode, the cleaning structure is in the aforementioned first mode, and the third valve structure controls the second water outlet 52 to communicate with the drain port 51, and the heating chamber 100 turns on the heating function. Among them, when the chloroform content of the second water outlet 52 is still greater than or equal to the first preset value after the water purification system runs in the first post-charcoal cleaning mode for a first preset time, it means that the first post-charcoal cleaning mode cannot clean the post-charcoal. At this time, the water purification system is controlled to enter the second post-charcoal cleaning mode, and the drain port 51 is controlled to remain closed for a second preset time before opening.

[0067] In the above example, the second post-carbon cleaning mode of the water purification system is an immersion cleaning mode, wherein the post-carbon is immersed in warm water during the time when the drain outlet 51 remains closed, which is beneficial to improving the ability of the post-carbon to effectively remove chloroform.

[0068] It should be noted here that: when the water purification system includes a post-carbon cleaning mode, the post-carbon cleaning mode includes the first post-carbon cleaning mode and the second post-carbon cleaning mode mentioned above.

[0069] In a specific application example, the second preset time mentioned above can be 25-30 minutes. When the drain port 51 is opened again after being opened for the second preset time, the sewage in the rear carbon containing chamber 5 can be discharged.

[0070] It should be noted that when the drain port 51 is opened after being closed for the second preset time, the drain port 51 is opened for a fourth preset time and then closed, so that the drain port 51 returns to the initial closed state. The fourth preset time may be 30 seconds.

[0071] In the second post-carbon cleaning mode described above, the water outlet temperature of the aforementioned water outlet may be 60-70° C., and the flow rate in the water purification system may be 2.5-3.0 L / min.

[0072] The present invention also provides a water purifier, which includes any of the above cleaning structures, or includes any of the above water purification systems. Wherein, because the water purifier adopts the above cleaning structure or water purification system, the heating module 1 can heat the water in the water inlet 101 into warm water, and then discharge the warm water into the post-charcoal accommodating chamber 5 through the first water outlet 102, so as to clean the post-charcoal with warm water, such as real-time rinsing or soaking, etc., to stimulate the recovery of the adsorption activity function of the post-charcoal to remove chloroform, and improve the adsorption performance of the post-charcoal. Wherein, when warm water continues to flow into the post-charcoal accommodating chamber 5, the pressure in the post-charcoal accommodating chamber 5 can be adjusted by controlling the drain port 51 to be frequently opened and closed according to the set frequency, so that the warm water entering the post-charcoal accommodating chamber 5 can form a pressure difference shock wave jet, bubbles are generated in the water, and penetrate into the charcoal, and the bubbles burst under the action of the pressure difference to form an impact force, thereby improving the cleaning effect of the post-charcoal. Among them, since the post-carbon is cleaned, it can restore its adsorption activity to remove chloroform, so that the water purifier can still effectively remove chloroform through the post-carbon after being used for a period of time.

[0073] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A cleaning structure for cleaning the post-charcoal in the post-charcoal containing chamber (5) of a water purification system, characterized in that: The cleaning structure comprises a water inlet (101), a heating module (1) and a first water outlet (102); the cleaning structure introduces water through the water inlet (101); the heating module (1) is used to heat the water in the water inlet (101); and the first water outlet (102) is used to communicate with the rear charcoal containing chamber (5) so as to introduce the water heated by the heating module (1) into the rear charcoal containing chamber (5); The cleaning structure further comprises a drainage port (51) in communication with the rear carbon containing chamber (5), wherein the drainage port (51) can be opened and closed at a set frequency to adjust the pressure in the rear carbon containing chamber (5).

2. The cleaning structure according to claim 1, characterized in that: The heating module (1) has a heating chamber (100), the heating chamber (100) has an inlet (11) and an outlet (12), the heating module (1) introduces water from the water inlet (101) into the heating chamber (100) through the inlet (11) for heating, and the outlet (12) serves as the first water outlet (102).

3. The cleaning structure according to claim 2, characterized in that: Also includes a heat exchanger (2); The heat exchanger (2) comprises a first heat exchange channel (21) and a second heat exchange channel (22) which can exchange heat with each other; one end (211) of the first heat exchange channel is in communication with the inlet (11), and the other end (212) can be in communication with the water inlet (101), so that the water inlet (101) can be in communication with the inlet (11) through the first heat exchange channel (21); one end (221) of the second heat exchange channel is in communication with the rear carbon containing chamber (5), and the other end (222) can be in communication with the first water outlet (102), so that the first water outlet (102) can be in communication with the rear carbon containing chamber (5) through the second heat exchange channel (22).

4. The cleaning structure according to claim 3, characterized in that: It also comprises a first pipeline (3) and a second pipeline (4); one end (31) of the first pipeline is in communication with the inlet (11), and the other end (32) can be in communication with the water inlet (101), so that the water inlet (101) can be in communication with the inlet (11) through the first pipeline (3); one end (41) of the second pipeline is in communication with the rear charcoal containing chamber (5), and the other end (42) can be in communication with the first water outlet (102), so that the first water outlet (102) can be in communication with the rear charcoal containing chamber (5) through the second pipeline (4); The cleaning structure has at least two modes. In the first mode, the water inlet (101) is connected to the inlet (11) through the first pipeline (3) of the first pipeline (3) and the first heat exchange channel (21), and the first water outlet (102) is connected to the post-charcoal containing chamber (5) through the second pipeline (4) of the second pipeline (4) and the second heat exchange channel (22); and in the second mode, the water inlet (101) is connected to the inlet (11) through the first pipeline (3) and the first heat exchange channel (21), and the first water outlet (102) is connected to the post-charcoal containing chamber (5) through the second pipeline (4) and the second heat exchange channel (22).

5. The cleaning structure according to claim 4, characterized in that: The water inlet (101) is connected to the other end (212) of the first heat exchange channel and the other end (32) of the first pipeline through a first valve structure, and the first valve structure is used to control the other end (32) of the first pipeline between the other end (212) of the first heat exchange channel and the other end (32) of the first pipeline to be in communication with the water inlet (101) in the first mode, and to control the other end (212) of the first heat exchange channel between the other end (212) of the first pipeline and the other end (32) of the first pipeline to be in communication with the water inlet (101) in the second mode; And / or, the first water outlet (102) is connected to the other end (222) of the second heat exchange channel and the other end (42) of the second pipeline through a second valve structure, and the second valve structure is used to control the other end (42) of the second pipeline between the other end (222) of the second heat exchange channel and the other end (42) of the second pipeline to be connected to the first water outlet (102) in the first mode, and to control the other end (222) of the second heat exchange channel between the other end (222) of the second pipeline and the other end (42) of the second pipeline to be connected to the first water outlet (102) in the second mode.

6. The cleaning structure according to any one of claims 1 to 5, characterized in that: The drain outlet (51) is opened and closed by an electric control valve (7); the cleaning structure further comprises a controller, the controller being used to control the electric control valve (7) to open and close according to the set frequency, so that the drain outlet (51) is opened and closed according to the set frequency.

7. A water purification system, characterized in that: The cleaning structure comprises the cleaning structure described in any one of claims 1 to 6.

8. The water purification system according to claim 7, characterized in that: The water purification system comprises an RO membrane filter (20), the RO membrane filter (20) comprises a filtered water outlet (201), and the water inlet (101) is in communication with the filtered water outlet (201).

9. The water purification system according to claim 8, characterized in that: When the heating module (1) has a heating chamber (100), the heating chamber (100) has an inlet (11) and an outlet (12), and the heating module (1) introduces water from the water inlet (101) into the heating chamber (100) through the inlet (11) for heating, and the outlet (12) serves as the first water outlet (102), the heating chamber (100) can turn on or off the heating function; the water purification system has a water purification mode and a post-charcoal cleaning mode, wherein in the water purification mode, the heating chamber (100) turns off the heating function; and in the post-charcoal cleaning mode, the heating chamber (100) turns on the heating function.

10. The water purification system according to any one of claims 7 to 9, characterized in that: It also includes a clean water branch (19); The rear charcoal containing chamber (5) has a second water outlet (52), and the second water outlet (52) can be selectively connected to one of the water outlet (51) and the clean water branch (19) through a third valve structure.

11. A control method for the water purification system of claim 10, when the water purification system further comprises the water purification structure of claim 4 or 5, and the heating chamber (100) can turn on or off the heating function, characterized in that: The water purification system has a first post-charcoal cleaning mode. In the first post-charcoal cleaning mode, the cleaning structure is in the second mode, and the third valve structure controls the second water outlet (52) to be connected to the drain outlet (51), and the heating chamber (100) starts the heating function, and the drain outlet (51) is opened and closed according to a set frequency; wherein, when the chloroform content of the second water outlet (52) is greater than or equal to a first preset value, the water purification system is controlled to enter the first post-charcoal cleaning mode, so that the water purification system continues to operate in the first post-charcoal cleaning mode until the chloroform content of the second water outlet (52) drops below the second preset value, and then the water purification system is controlled to exit the first post-charcoal cleaning mode.

12. The control method according to claim 11, characterized in that: The water purification system has a second post-charcoal cleaning mode. In the second post-charcoal cleaning mode, the cleaning structure is in the first mode, and the third valve structure controls the second water outlet (52) to be connected to the drain outlet (51), and the heating chamber (100) starts the heating function; wherein, when the chloroform content of the second water outlet (52) is still greater than or equal to a first preset value after the water purification system has been running in the first post-charcoal cleaning mode for a first preset time, the water purification system is controlled to enter the second post-charcoal cleaning mode, and the drain outlet (51) is controlled to remain closed for a second preset time and then open.

13. The control method according to claim 11 or 12, characterized in that: After the water purification system exits the first post-carbon cleaning mode, the drain port (51) is opened for a third preset time and then closed.

14. A water purifier, characterized in that: The cleaning structure comprises the cleaning structure described in any one of claims 1 to 6, or the water purification system described in any one of claims 7 to 10.

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