CN221051689U - Water dispenser - Google Patents

Abstract

The present disclosure provides a water dispenser, comprising: a filtering device comprising one or more filtering modules configured to filter potable water flowing therein; a TOC analyzer connected to the water outlet of the filter device and configured to detect a real-time value of total organic carbon of the filtered drinking water, the downstream end of the TOC analyzer being in selective communication with the upstream end of all or a portion of the filter module such that drinking water exiting the TOC analyzer can be filtered again; and a conductivity meter connected to the water outlet of the filtering device and configured to detect a real-time value of the conductivity of the filtered potable water, the downstream end of the conductivity meter being in selective communication with the upstream end of all or a portion of the filtering module such that potable water exiting the conductivity meter can be filtered again. The water dispenser provided by the disclosure can reflect and improve water quality in real time.

Description

Water dispenser

Technical Field

The disclosure relates to the field of water purifying equipment, in particular to a water dispenser.

Background

For most water dispenser products on the market at present, the sterilization or disinfection effect is only displayed in the test stage, but the sterilization or disinfection effect cannot be ensured along with the extension of time, and the direct and reliable data index is also lacked to reflect the water quality condition during use.

Disclosure of utility model

In view of the above, an object of the present disclosure is to provide a water dispenser capable of reflecting and improving the water quality in real time.

A first aspect of the present disclosure provides a water dispenser, comprising:

A filtering device comprising one or more filtering modules configured to filter potable water flowing therein;

A TOC analyzer connected to the water outlet of the filter device and configured to detect a real-time value of total organic carbon of the filtered drinking water, the downstream end of the TOC analyzer being in selective communication with all or a portion of the upstream end of the filter module such that drinking water exiting the TOC analyzer can be filtered again; and

A conductivity meter connected to the water outlet of the filter device and configured to detect a real-time value of the conductivity of the filtered potable water, the downstream end of the conductivity meter being in selective communication with all or a portion of the upstream end of the filter module such that potable water exiting the conductivity meter can be filtered again.

In accordance with some embodiments of the present disclosure,

The TOC analyzer has a water inlet in selective communication with the water outlet of the filter device, a first water outlet in selective communication with all or a portion of the upstream end of the filter module and configured to discharge total organic carbon reject potable water, and a second water outlet in selective communication with the water outlet of the filter device and configured to discharge total organic carbon reject potable water; and/or

The conductivity meter has a water inlet in selective communication with the water outlet of the filter device, a first water outlet in selective communication with all or a portion of the upstream end of the filter module and configured to discharge potable water of unacceptable conductivity, and a second water outlet in selective communication with the water outlet of the filter device and configured to discharge potable water of acceptable conductivity.

According to some embodiments of the disclosure, there is provided:

a circulation line configured to flow total organic carbon and/or conductivity reject potable water to all or a portion of the upstream end of the filtration module, the circulation line comprising a first leg, a second leg, and a third leg, the first and second ends of the first leg being connected to the first water outlet of the TOC analyzer and the first end of the third leg, respectively, the first and second ends of the second leg being connected to the first water outlet of the conductivity meter and the first end of the third leg, respectively; and

A water drain line configured to drain potable water of unacceptable total organic carbon and/or conductivity out of the water dispenser, the second end of the first branch being in selective communication with the water drain line, the second end of the second branch being in selective communication with the water drain line.

According to some embodiments of the disclosure, there is provided:

A first control valve provided on the first branch and configured to turn on or off both ends of the first branch;

A second control valve provided on the second branch and configured to turn on or off both ends of the second branch;

a third control valve provided on the third branch and configured to turn on or off both ends of the third branch; and

And a fourth control valve provided on the drain line and configured to turn on or off both ends of the drain line.

According to some embodiments of the present disclosure, further comprising a controller communicatively connected to the TOC analyzer, the conductivity meter, the first control valve, the second control valve, the third control valve, and the fourth control valve and configured to:

In a state that the real-time value of the total organic carbon exceeds a qualified range, connecting two ends of the first branch and connecting two ends of the drainage pipeline, and after a first preset time is continued, connecting two ends of the first branch and connecting two ends of the third branch; and/or

And in a state that the real-time value of the conductivity exceeds the qualified range, the two ends of the second branch are connected and the two ends of the drainage pipeline are connected, and after the second preset time is continued, the two ends of the second branch are connected and the two ends of the third branch are connected.

According to some embodiments of the present disclosure, the controller is further configured to:

After the two ends of the first branch are communicated and the two ends of the drainage pipeline are communicated for the first preset time, the real-time value of the total organic carbon still exceeds the state of a qualified range, and an alarm signal is sent; or (b)

And after the two ends of the second branch are communicated and the two ends of the drainage pipeline are communicated for the second preset time, the real-time value of the conductivity still exceeds the state of the qualified range, and an alarm signal is sent.

In accordance with some embodiments of the present disclosure,

The second water outlet of the TOC analyzer is connected with the water inlet of the conductivity tester;

The water dispenser comprises a first water supply pipeline and a second water supply pipeline, wherein the first end and the second end of the first water supply pipeline are respectively connected with a water outlet of the filtering device and a water inlet of the TOC analyzer, and the first end and the second end of the second water supply pipeline are respectively connected with a water outlet of the filtering device and a water inlet of the conductivity analyzer.

According to some embodiments of the disclosure, there is provided:

A fifth control valve provided on the first water supply line and configured to turn on or off both ends of the first water supply line; and

And a sixth control valve provided on the second water supply line and configured to turn on or off both ends of the second water supply line.

According to some embodiments of the present disclosure, further comprising a controller communicatively connected to the TOC analyzer, the conductivity meter, the fifth control valve, and the sixth control valve and configured to: and in a state that the real-time value of the total organic carbon is in a qualified range and the real-time value of the conductivity exceeds the qualified range, disconnecting the two ends of the first water supply pipeline and connecting the two ends of the second water supply pipeline.

According to some embodiments of the disclosure, one or more of the filtration modules includes a reverse osmosis device, the downstream end of the TOC analyzer is in selective communication with an upstream end of the reverse osmosis device, and/or the downstream end of the conductivity meter is in selective communication with an upstream end of the reverse osmosis device.

According to some embodiments of the disclosure, the plurality of filtration modules comprises at least one of PP cotton filter elements, granular activated carbon, and ultrafiltration membranes.

According to some embodiments of the disclosure, the PP cotton filter element, the granular activated carbon, the ultrafiltration membrane and the reverse osmosis device are sequentially arranged along a water flow direction.

According to some embodiments of the disclosure, further comprising:

A water tank disposed at a downstream end of the TOC analyzer and the conductivity meter and configured to store total organic carbon and conductivity-acceptable potable water; and

And the first sterilization and disinfection device is arranged at the upstream end of the water tank and is configured to sterilize and disinfect drinking water flowing to the water tank.

According to some embodiments of the disclosure, further comprising:

A temperature control device disposed at downstream ends of the TOC analyzer and the conductivity meter and configured to heat and/or cool drinking water having acceptable total organic carbon and conductivity so as to bring the drinking water to a preset temperature; and

And the second sterilization and disinfection device is arranged at the upstream end of the temperature control device and is configured to sterilize and disinfect the drinking water flowing to the temperature control device.

The water dispenser provided by the disclosure can filter pollutants in water through the filtering device, and can detect total organic carbon in the drinking water in real time through the TOC analyzer, and can detect the conductivity of the drinking water in real time through the conductivity tester, so that the water quality condition of the filtered drinking water is reflected. If TOC or conductivity disqualification exists, the water dispenser can enable the downstream end of the TOC analyzer or the downstream end of the conductivity tester to be communicated with the upstream end of at least one filter module, and the drinking water with unqualified indexes can be filtered again through the filter module until the water quality reaches the standard, so that the risks of microorganism breeding and overlarge hardness are reduced, and the water quality and drinking water safety are ensured. And for a water source with better water quality, under the condition that the total organic carbon and the conductivity are qualified, the downstream end of the TOC analyzer or the downstream end of the conductivity tester can be disconnected from the upstream end of the filter module by the water dispenser, so that the excessive purification of drinking water can be avoided, the replacement times of filter materials in the filter module can be reduced, and the resource waste can be reduced.

Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate and explain the present disclosure, and together with the description serve to explain the present disclosure. In the drawings:

Fig. 1 is a schematic structural diagram of a water dispenser according to some embodiments of the present disclosure.

FIG. 2 is a schematic workflow diagram of a water dispenser according to some embodiments of the present disclosure.

In fig. 1 and 2, each reference numeral represents:

1. a filtering device; 11. a reverse osmosis device; 12. a PP cotton filter element; 13. granular activated carbon; 14. an ultrafiltration membrane;

21. A TOC analyzer; 22. a conductivity meter;

31. a first booster pump; 32. a second booster pump;

411. A first branch; 412. a second branch; 413. a third branch; 42. a drainage pipeline; 431. a first water supply line; 432. a second water supply line;

51. A first control valve; 52. a second control valve; 53. a third control valve; 54. a fourth control valve; 55. a fifth control valve; 56. a sixth control valve; 57. a seventh control valve;

6. A water tank;

71. a first sterilization and disinfection device; 72. a second sterilization and disinfection device;

8. A temperature control device;

9. And an alarm device.

Detailed Description

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present disclosure, it should be understood that the use of terms such as "first," "second," etc. for defining components is merely for convenience in distinguishing corresponding components, and the terms are not meant to be construed as limiting the scope of the present disclosure unless otherwise indicated.

In the description of the present disclosure, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present disclosure and to simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be configured and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present disclosure; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Referring to fig. 1 and 2, some embodiments of the present disclosure provide a water dispenser including a filtering device 1, a TOC analyzer 21, and a conductivity meter 22. The filtering device 1 comprises one or more filtering modules configured to filter the drinking water flowing therein. The TOC analyzer 21 is connected to the water outlet of the filter device 1 and is configured to detect a real-time value of total organic carbon of the filtered drinking water, the downstream end of the TOC analyzer 21 being in selective communication with the upstream end of all or part of the filter module, so that the drinking water exiting the TOC analyzer 21 can be filtered again. The conductivity meter 22 is connected to the water outlet of the filtering device 1 and is configured to detect a real-time value of the conductivity of the filtered drinking water, the downstream end of the conductivity meter 22 being in selective communication with the upstream end of all or part of the filtering module, so that the drinking water exiting the conductivity meter 22 can be filtered again.

In the present disclosure, descriptions of "upstream", "downstream", "upstream end" and "downstream end" refer to the direction of water flow of the water dispenser.

The TOC analyzer 21 is used for detecting TOC (Total Organic Carbon ) in the drinking water in real time, and the TOC can reflect the microorganism content in the drinking water and prevent the microorganism in the drinking water from exceeding the standard. The conductivity meter 22 is used to detect the conductivity of the drinking water in real time, which can reflect the hardness of the drinking water. Preventing the hardness of the drinking water from being too high.

In case the filter device 1 comprises a plurality of filter modules, each filter module may be used for filtering a type of contaminant, the filtering effect of the different filter modules may be different. To reduce the number of repeated filters, and to reduce resource waste and power consumption, the downstream end of the TOC analyzer 21 and the downstream end of the conductivity meter 22 may be selectively in communication with only the upstream end of a portion of the filter modules.

In some embodiments, referring to fig. 1, one or more filtration modules include a reverse osmosis unit 11, with a downstream end of a toc analyzer 21 in selective communication with an upstream end of the reverse osmosis unit 11, and/or with a downstream end of a conductivity meter 22 in selective communication with an upstream end of the reverse osmosis unit 11.

In some embodiments, referring to fig. 1, the plurality of filtration modules includes at least one of PP cotton filter cartridge 12, granular activated carbon 13, and ultrafiltration membrane 14.

The PP cotton filter core 12 is used for filtering impurities such as particulate matters in the drinking water, the particulate activated carbon 13 is used for removing residual chlorine and peculiar smell in the drinking water, and the ultrafiltration membrane 14 is used for removing bacteria, colloid, partial organic matters and the like in the drinking water.

In order to sufficiently remove impurities of different kinds and different particle diameters in the drinking water, in some embodiments, referring to fig. 1, a pp cotton filter cartridge 12, granular activated carbon 13, an ultrafiltration membrane 14, and a reverse osmosis device 11 are sequentially disposed in a water flow direction.

Optionally, the water dispenser includes a first booster pump 31, and the first booster pump 31 is disposed on a pipeline therebetween. The PP cotton filter element 12, the granular activated carbon 13 and the ultrafiltration membrane 14 form a three-stage filtration module shown in figure 2.

The drinking machine of the embodiment of the disclosure can filter pollutants in water through the filtering device, detect total organic carbon in the drinking water in real time through the TOC analyzer, and detect the conductivity of the drinking water in real time through the conductivity tester, so as to reflect the water quality condition of the filtered drinking water. If TOC or conductivity disqualification exists, the water dispenser can enable the downstream end of the TOC analyzer or the downstream end of the conductivity tester to be communicated with the upstream end of at least one filter module, and the drinking water with unqualified indexes can be filtered again through the filter module until the water quality reaches the standard, so that the risks of microorganism breeding and overlarge hardness are reduced, and the water quality and drinking water safety are ensured. And for a water source with better water quality, under the condition that the total organic carbon and the conductivity are qualified, the downstream end of the TOC analyzer or the downstream end of the conductivity tester can be disconnected from the upstream end of the filter module by the water dispenser, so that the excessive purification of drinking water can be avoided, the replacement times of filter materials in the filter module can be reduced, and the resource waste can be reduced.

In some embodiments, referring to fig. 1, the TOC analyzer 21 has a water inlet, a first water outlet, and a second water outlet, the water inlet of the TOC analyzer 21 being in selective communication with the water outlet of the filter device 1, the first water outlet of the TOC analyzer 21 being in selective communication with the upstream end of all or a portion of the filter module and configured to discharge total organic carbon reject potable water, the second water outlet of the TOC analyzer 21 being configured to discharge total organic carbon reject potable water.

In some embodiments, referring to fig. 1, conductivity meter 22 has a water inlet, a first water outlet, and a second water outlet, the water inlet of conductivity meter 22 being in selective communication with the water outlet of filter device 1, the first water outlet of conductivity meter 22 being in selective communication with the upstream end of all or a portion of the filter module and configured to discharge conductivity-unacceptable potable water, and the second water outlet of conductivity meter 22 being configured to discharge conductivity-acceptable potable water.

In some embodiments, referring to FIG. 1, a water dispenser includes a combination TOC analyzer 21 and conductivity meter 22 having a water inlet, a first water outlet, a second water outlet, and a corresponding connection as described above. Alternatively, the water inlet of one of the TOC analyzer 21 and the conductivity meter 22 may be connected in series with the second water outlet of the other, and the drinking water provided by the water source may be subjected to TOC detection first and then conductivity detection, or the conductivity detection first and then TOC detection.

In some embodiments, referring to FIG. 1, the water dispenser includes a circulation line and a drain line 42. The circulation line is configured to flow the drinking water with unacceptable total organic carbon and/or conductivity to the upstream end of all or part of the filtration module, and includes a first branch 411, a second branch 412 and a third branch 413, the first end and the second end of the first branch 411 being connected to the first water outlet of the TOC analyzer 21 and the first end of the third branch 413, respectively, and the first end and the second end of the second branch 412 being connected to the first water outlet of the conductivity meter 22 and the first end of the third branch 413, respectively. The water discharge line 42 is configured to discharge drinking water having unacceptable total organic carbon and/or conductivity out of the water dispenser, the second end of the first branch 411 being in selective communication with the water discharge line 42, and the second end of the second branch 412 being in selective communication with the water discharge line 42.

The drinking water with unqualified water quality can enter the third branch through the first branch or the second branch, return to the filtering module for filtering again, and can enter the drainage pipeline through the first branch or the second branch to be directly discharged out of the water dispenser. The water dispenser in the embodiment can simplify the pipeline setting, and is beneficial to reducing the manufacturing cost and reducing the risk of introducing impurities.

In some embodiments, referring to fig. 1, the water dispenser includes a first control valve 51, a second control valve 52, a third control valve 53, and a fourth control valve 54. The first control valve 51 is provided on the first branch 411 and is configured to switch on or off both ends of the first branch 411. The second control valve 52 is provided on the second branch 412 and configured to switch on or off both ends of the second branch 412. The third control valve 53 is provided on the third branch 413 and configured to switch on or off both ends of the third branch 413. A fourth control valve 54 is provided on the drain line 42 and configured to switch on or off both ends of the drain line 42.

In some embodiments, the water dispenser further comprises a controller communicatively coupled to the TOC analyzer 21, the conductivity meter 22, the first control valve 51, the second control valve 52, the third control valve 53, and the fourth control valve 54 and configured to: in a state that the real-time value of the total organic carbon exceeds the acceptable range, both ends of the first branch 411 are turned on and both ends of the drain line 42 are turned on, and after the first preset time is continued, both ends of the first branch 411 are turned on and both ends of the third branch 413 are turned on.

In some embodiments, the water dispenser further comprises a controller communicatively coupled to the TOC analyzer 21, the conductivity meter 22, the first control valve 51, the second control valve 52, the third control valve 53, and the fourth control valve 54 and configured to: in a state that the real-time value of the conductivity exceeds the acceptable range, both ends of the second branch 412 are turned on and both ends of the drain line 42 are turned on, and after the second preset time is continued, both ends of the second branch 412 are turned on and both ends of the third branch 413 are turned on.

In the drinking machine of this embodiment, if the real-time value of the total organic carbon exceeds the acceptable range, the drinking water can be drained for a period of time by the first branch 411 and the drain pipeline 42, and after the primary water is drained, the drinking water can flow to the filtering module by the first branch 411 and the third branch 413 and be filtered again. If the real-time value of the conductivity exceeds the acceptable range, the drinking water can be drained from the first branch 411 and the drain pipeline 42 for a period of time, and after the primary water is drained, the drinking water can flow to the filtering module from the first branch 411 and the third branch 413 and be filtered again. Optionally, the first preset time and the second preset time may be the same or different according to requirements for different water quality indexes.

In some embodiments, referring to fig. 1, the water dispenser further comprises an alarm device 9, the alarm device 9 being in signal connection with the controller and configured to: after the two ends of the first branch 411 are turned on and the two ends of the drain line 42 are turned on for the first preset time, the real-time value of the total organic carbon is still beyond the state of the acceptable range, an alarm signal is sent out, or after the two ends of the second branch 412 are turned on and the two ends of the drain line 42 are turned on for the second preset time, the real-time value of the conductivity is still beyond the state of the acceptable range, and an alarm signal is sent out.

Optionally, the controller is configured to record the number of alarms of the alarm device 9, and if the number of alarms reaches a certain number of times within a period of time, the filter device is indicated to be insufficient for filtering pollutants in the drinking water, the water dispenser is controlled to stop running, and prompt information is sent to remind a user to replace corresponding devices or components so as to reduce energy consumption caused by invalid work.

In some embodiments, referring to fig. 1, the second water outlet of toc analyzer 21 is connected to the water inlet of conductivity meter 22. The water dispenser includes a first water supply pipe 431 and a second water supply pipe 432, the first end and the second end of the first water supply pipe 431 are respectively connected with the water outlet of the filter device 1 and the water inlet of the TOC analyzer 21, and the first end and the second end of the second water supply pipe 432 are respectively connected with the water outlet of the filter device 1 and the water inlet of the conductivity meter 22.

In some embodiments, referring to fig. 1, the water dispenser includes a fifth control valve 55 and a sixth control valve 56. The fifth control valve 55 is provided on the first water supply line 431 and configured to turn on or off both ends of the first water supply line 431. The sixth control valve 56 is provided on the second water supply line 432 and is configured to turn on or off both ends of the second water supply line 432.

In some embodiments, the water dispenser further comprises a controller communicatively coupled to the TOC analyzer 21, the conductivity meter 22, the fifth control valve 55, and the sixth control valve 56 and configured to: in a state where the real-time value of the total organic carbon is in the acceptable range and the real-time value of the conductivity is out of the acceptable range, both ends of the first water supply line 431 are turned off and both ends of the second water supply line 432 are turned on.

The drinking water dispenser of this embodiment includes first water supply line and second water supply line, if drinking water TOC has been in qualified scope and conductivity still is outside the qualified scope, through making the both ends disconnection of first water supply line and the both ends intercommunication of second water supply line, the drinking water after the filtration again can only carry out conductivity detection, does benefit to the invalid detection number of times of reduction, reduces the wasting of resources, prolongs the life of drinking water dispenser.

Optionally, the water dispenser includes a second booster pump 32, the second booster pump 32 being disposed on a line between a second end of the second water supply line 432 and the water inlet of the conductivity meter 22. In the embodiment shown in fig. 1, TOC testing is performed on the drinking water followed by conductivity testing. In some embodiments, not shown, the detection sequence may also be reversed from the embodiment of fig. 1, with the second water outlet of the conductivity meter 22 being connected to the water inlet of the TOC analyzer, which is advantageous in the same way as the embodiment of fig. 1.

In some embodiments, referring to fig. 1, the water dispenser further includes a water tank 6 and a first sterilizing device 71. The water tank 6 is provided at the downstream end of the TOC analyzer 21 and the conductivity meter 22 and is configured to store drinking water that is acceptable in total organic carbon and conductivity. The first sterilizing device 71 is provided at an upstream end of the water tank 6, and is configured to sterilize drinking water flowing to the water tank 6.

Optionally, the water inlet of the TOC analyzer 21 is connected to the downstream end of the filter device 1, the second water outlet of the TOC analyzer 21 is connected to the water inlet of the conductivity meter 22, the first sterilizing and disinfecting device 71 is disposed on a line between the second water outlet of the conductivity meter 22 and the water inlet of the water tank 6, the water dispenser includes a seventh control valve 57, and the seventh control valve 57 is disposed on a line between the first sterilizing and disinfecting device 71 and the conductivity meter 22 and is configured to turn on or off both ends of the portion of the line to control whether the water tank 6 stores water. The first sterilizing device 71 may employ an ultraviolet lamp.

In the above embodiment, the first sterilizing and disinfecting device can further sterilize and disinfect the drinking water with qualified total organic carbon and conductivity, further improve water quality, and the water tank can store the sterilized and disinfected drinking water, so that the drinking water can be used immediately.

In some embodiments, referring to fig. 1, the water dispenser further comprises a temperature control device 8 and a second sterilization and disinfection device 72. The temperature control device 8 is provided at the downstream end of the TOC analyzer 21 and the conductivity meter 22 and is configured to heat and/or cool the drinking water qualified in total organic carbon and conductivity so as to bring the drinking water to a preset temperature. The second sterilizing device 72 is provided at an upstream end of the temperature control device 8 and configured to sterilize drinking water flowing to the temperature control device 8.

Optionally, the water inlet of the TOC analyzer 21 is connected to the downstream end of the filter device 1, the second water outlet of the TOC analyzer 21 is connected to the water inlet of the conductivity meter 22, and the water tank 6 is connected in parallel to a pipeline between the second water outlet of the conductivity meter 22 and the second sterilization and disinfection device 72, or to a pipeline between the second water outlet of the conductivity meter 22 and the temperature control device 8. The second sterilizing device 72 may employ an ultraviolet lamp.

In the above-mentioned embodiment, the second sterilizing and disinfecting device can further sterilize and disinfect the drinking water with qualified total organic carbon and conductivity, further promote water quality, and the temperature control device can accurately regulate and control the temperature of the sterilized and disinfected drinking water, so that the drinking requirement of a user is better met.

The operation principle of the water dispenser according to some embodiments of the present disclosure will be further described with reference to fig. 1 and 2.

The water dispenser includes a filter device 1, a TOC analyzer 21, a conductivity meter 22, a first booster pump 31, a second booster pump 32, a circulation line, a drain line 42, a first water supply line 431, a second water supply line 432, a first control valve 51, a second control valve 52, a third control valve 53, a fourth control valve 54, a fifth control valve 55, a sixth control valve 56, a seventh control valve 57, a water tank 6, a first sterilization and disinfection device 71, a second sterilization and disinfection device 72, a temperature control device 8, and an alarm device 9. The filtration device 1 comprises a plurality of filtration modules, which comprise a PP cotton filter element 12, granular activated carbon 13, an ultrafiltration membrane 14 and a reverse osmosis device 11 which are sequentially arranged along the water flow direction. The circulation line comprises a first branch 411, a second branch 412 and a third branch 413. The structure and connection of the components are described with reference to the above.

Tap water or other types of water sources enter the water dispenser from the water inlet of the water dispenser, sequentially flow through the PP cotton filter element 12 to filter impurities such as particles in the drinking water, flow through the particle activated carbon 13 to remove residual chlorine and peculiar smell in the drinking water, flow through the ultrafiltration membrane 14 to remove bacteria, colloid, partial organic matters and the like in the drinking water, and then enter the reverse osmosis device 11 for filtering through the first booster pump 31. The filtered drinking water passes through the TOC analyzer 21, TOC in the drinking water is detected in real time, TOC reaches the standard and then enters the conductivity meter 22 through the second booster pump 32, the conductivity is detected in real time to reflect the hardness of the water body, the drinking water passes through the first sterilization and disinfection device 71 after reaching the standard, and then passes through the temperature control device 8, and the temperature of the drinking water is accurately regulated and controlled in real time according to the required temperature so as to be convenient for users to use. The drinking water after the index reaches the standard can be stored in the water tank 6 through the seventh control valve 57 and the first sterilizing device 71.

If the TOC of the drinking water does not reach the standard, the first control valve 51 communicates the two ends of the first branch 411, and the fourth control valve 54 communicates the two ends of the drain line 42, so that the drinking water with the TOC not reaching the standard is discharged out of the water dispenser. If the TOC is detected to be unqualified after draining for 1min, the water dispenser communicates the two ends of the first branch 411 through the first control valve 51, communicates the two ends of the third branch 413 through the third control valve 53, starts the alarm device 9 and enables the reverse osmosis device 11 to be in an operating state, and repeatedly filters and detects the drinking water with unqualified TOC until the TOC of the drinking water meets the requirement of the healthy direct drinking water quality standard, and then the drinking water can continue to flow to the conductivity detector 22 for conductivity detection; if the TOC of the drinking water is up to standard and the conductivity is not up to standard, the two ends of the second branch 412 are connected through the second control valve 52, the two ends of the drain pipeline 42 are connected through the fourth control valve 54, and the drinking water with the conductivity not up to standard is discharged out of the water dispenser. If the conductivity is still unqualified after draining for 1min, the water dispenser communicates the two ends of the second branch 412 through the second control valve 52, communicates the two ends of the third branch 413 through the third control valve 53, disconnects the two ends of the first water supply pipeline 431 through the fifth control valve 55, communicates the two ends of the second water supply pipeline 432 through the sixth control valve 56, starts the alarm device 9 and enables the reverse osmosis device 11 to be in an operating state, and repeatedly filters and detects the drinking water with unqualified conductivity until the TOC content in the water quality meets the requirement of the healthy direct drinking water quality standard, so that the drinking water can continue to flow to the temperature control device 8 or the water tank 6. When the alarm device 9 sends out alarm signals for 3 times continuously, the controller controls the water dispenser to stop running and sends out prompt information to remind a user to replace corresponding devices or parts so as to reduce energy consumption caused by invalid work.

In some embodiments, the controller described above may be implemented as a general purpose Processor, programmable logic controller (Programmable Logic Controller, abbreviated as PLC), digital signal Processor (DIGITAL SIGNAL Processor, abbreviated as DSP), application Specific Integrated Circuit (ASIC), field-Programmable gate array (FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components, or any suitable combination thereof for performing the functions described herein.

Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present disclosure and are not limiting thereof; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will appreciate that: modifications may be made to the specific embodiments of the disclosure or equivalents may be substituted for part of the technical features that are intended to be included within the scope of the claims of the disclosure.

Claims (12)

1. A water dispenser, comprising:

A filtering device (1) comprising one or more filtering modules configured to filter the drinking water flowing therein;

A TOC analyzer (21) connected to the water outlet of the filter device (1) and configured to detect a real-time value of total organic carbon of the filtered drinking water, the downstream end of the TOC analyzer (21) being in selective communication with all or part of the upstream end of the filter module, so that the drinking water exiting the TOC analyzer (21) can be re-filtered; and

A conductivity meter (22) connected to the water outlet of the filter device (1) and configured to detect a real-time value of the conductivity of the filtered drinking water, the downstream end of the conductivity meter (22) being in selective communication with all or part of the upstream end of the filter module, so that the drinking water exiting the conductivity meter (22) can be filtered again.

2. The water dispenser according to claim 1, wherein,

The TOC analyzer (21) having a water inlet, a first water outlet and a second water outlet, the water inlet of the TOC analyzer (21) being in selective communication with the water outlet of the filter device (1), the first water outlet of the TOC analyzer (21) being in selective communication with all or a portion of the upstream end of the filter module and being configured to discharge total organic carbon reject potable water, the second water outlet of the TOC analyzer (21) being configured to discharge total organic carbon reject potable water; and/or

The conductivity meter (22) has a water inlet, a first water outlet and a second water outlet, the water inlet of the conductivity meter (22) is selectively communicated with the water outlet of the filter device (1), the first water outlet of the conductivity meter (22) is selectively communicated with all or part of the upstream end of the filter module and is configured to discharge drinking water with unqualified conductivity, and the second water outlet of the conductivity meter (22) is configured to discharge drinking water with qualified conductivity.

3. The water dispenser of claim 2, comprising:

A circulation line configured to flow total organic carbon and/or conductivity reject potable water to all or part of the upstream end of the filtration module, the circulation line comprising a first branch (411), a second branch (412) and a third branch (413), the first end and the second end of the first branch (411) being connected to the first water outlet of the TOC analyzer (21) and the first end of the third branch (413), respectively, the first end and the second end of the second branch (412) being connected to the first water outlet of the conductivity meter (22) and the first end of the third branch (413), respectively; and

-A water discharge line (42) configured to discharge drinking water with unacceptable total organic carbon and/or conductivity out of the water dispenser, a second end of the first branch (411) being in selective communication with the water discharge line (42), a second end of the second branch (412) being in selective communication with the water discharge line (42).

4. A water dispenser according to claim 3, comprising:

A first control valve (51) provided on the first branch (411) and configured to switch on or off both ends of the first branch (411);

a second control valve (52) provided on the second branch (412) and configured to switch on or off both ends of the second branch (412);

A third control valve (53) provided on the third branch (413) and configured to switch on or off both ends of the third branch (413); and

A fourth control valve (54) provided to the drain line (42) and configured to switch on or off both ends of the drain line (42).

5. The water dispenser of claim 4, further comprising a controller communicatively coupled to the TOC analyzer (21), the conductivity meter (22), the first control valve (51), the second control valve (52), the third control valve (53), and the fourth control valve (54) and configured to:

In a state that the real-time value of the total organic carbon exceeds a qualified range, both ends of the first branch (411) are connected and both ends of the drainage pipeline (42) are connected, and after a first preset time is continued, both ends of the first branch (411) are connected and both ends of the third branch (413) are connected; and/or

And in a state that the real-time value of the conductivity exceeds the qualified range, the two ends of the second branch circuit (412) are connected and the two ends of the drainage pipeline (42) are connected, and after the second preset time is continued, the two ends of the second branch circuit (412) are connected and the two ends of the third branch circuit (413) are connected.

6. The water dispenser according to claim 5, further comprising an alarm device (9), the alarm device (9) being in signal connection with the controller and configured to:

After the two ends of the first branch (411) are connected and the two ends of the drainage pipeline (42) are connected for the first preset time, the real-time value of the total organic carbon still exceeds the state of a qualified range, and an alarm signal is sent; or (b)

And after the two ends of the second branch circuit (412) are connected and the two ends of the drainage pipeline (42) are connected for the second preset time, sending out an alarm signal when the real-time value of the conductivity still exceeds the qualified range.

7. The water dispenser according to claim 2, wherein,

The second water outlet of the TOC analyzer (21) is connected with the water inlet of the conductivity meter (22);

The water dispenser comprises a first water supply pipeline (431) and a second water supply pipeline (432), wherein the first end and the second end of the first water supply pipeline (431) are respectively connected with the water outlet of the filtering device (1) and the water inlet of the TOC analyzer (21), and the first end and the second end of the second water supply pipeline (432) are respectively connected with the water outlet of the filtering device (1) and the water inlet of the conductivity analyzer (22).

8. The water dispenser of claim 7, comprising:

A fifth control valve (55) provided on the first water supply line (431) and configured to turn on or off both ends of the first water supply line (431); and

A sixth control valve (56) provided on the second water supply line (432) and configured to turn on or off both ends of the second water supply line (432).

9. The water dispenser of claim 8, further comprising a controller communicatively coupled to the TOC analyzer (21), the conductivity meter (22), the fifth control valve (55), and the sixth control valve (56) and configured to: and in a state that the real-time value of the total organic carbon is in a qualified range and the real-time value of the conductivity is beyond the qualified range, both ends of the first water supply pipeline (431) are disconnected and both ends of the second water supply pipeline (432) are connected.

10. The water dispenser according to any one of claims 1 to 9, wherein one or more of the filtration modules comprises a reverse osmosis device (11), the downstream end of the TOC analyzer (21) being in selective communication with the upstream end of the reverse osmosis device (11) and/or the downstream end of the conductivity meter (22) being in selective communication with the upstream end of the reverse osmosis device (11).

11. The water dispenser according to any one of claims 1 to 9, further comprising:

A water tank (6) disposed at a downstream end of the TOC analyzer (21) and the conductivity meter (22) and configured to store drinking water having acceptable total organic carbon and conductivity; and

A first sterilizing device (71) provided at an upstream end of the water tank (6) and configured to sterilize drinking water flowing to the water tank (6).

12. The water dispenser according to any one of claims 1 to 9, further comprising:

A temperature control device (8), wherein the temperature control device (8) is arranged at the downstream ends of the TOC analyzer (21) and the conductivity measuring instrument (22) and is configured to heat and/or refrigerate drinking water with qualified total organic carbon and conductivity so as to enable the drinking water to reach a preset temperature; and

And a second sterilizing and disinfecting device (72) which is arranged at the upstream end of the temperature control device (8) and is configured to sterilize and disinfect the drinking water flowing to the temperature control device (8).