Control system of environment-friendly intelligent water purifier

Abstract

The utility model relates to a control system of an environment-friendly intelligent water purifier, and relates to the technical field of water treatment. The detection module is used for detecting water quality parameters and converting the parameters into detection signals; the reference module is used for providing different reference signals; the selection module is used for selecting a reference signal; the comparison module receives the detection signal and a reference signal and outputs a comparison signal; the control module is connected with the comparison module to receive the comparison signal and output a control signal; the time execution module is connected with the control module to receive the control signal and respond to the control signal to open and close the starting time of the electromagnetic valve power supply loop; the selection module synchronously switches the starting time; if the detection signal is greater than the reference signal, closing the electromagnetic valve power supply loop and disconnecting the electromagnetic valve power supply loop after the starting time; if the detection signal is smaller than the reference signal, the power supply loop of the electromagnetic valve is controlled not to be closed. The water purifier has the effect of improving the use universality of the water purifier.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment technical field especially, it is a kind of control system of environmental protection intelligent water purifier. BACKGROUND

[0002] Drinking water treatment is the important process to ensure water quality safety, it involves a variety of physical, chemical and biological technology, for removing or reducing residual chlorine, heavy metals, color and odor and other harmful substances in water.

[0003] Water purifier is applied to the device of drinking water treatment, including the water inlet assembly for introducing tap water, the filter assembly for filtering tap water, the drinking water assembly for using the pure water filtered by filter assembly and the discharge assembly for discharging waste water filtered by filter assembly, generally water purifier introduces tap water in the water supply system corresponding to different regions and carries out fixed cycle filtration, and the pure water after filtration is used for drinking.

[0004] In the process of water purifier filtration, the water quality corresponding to the water supply system in different regions is different, and the fixed cycle filtration water purifier is not easy to filter tap water in different regions to the standard that can be drunk, which causes harm to users. INVENTION CONTENTS

[0005] In order to improve the universality of water purifier, the utility model provides a kind of control system of environmental protection intelligent water purifier.

[0006] First, the utility model provides a kind of control system of environmental protection intelligent water purifier, using the following technical scheme:

[0007] A kind of control system of environmental protection intelligent water purifier, it include:

[0008] Power module, for providing voltage to detection module, reference module, selection module, comparison module, control module and time execution module;

[0009] Detection module, for detecting water quality parameter and converting into detection signal;

[0010] Reference module is provided with several and is used to provide different reference signals;

[0011] Selection module is connected with reference module and is used to select reference signal;

[0012] Comparison module is connected with detection module and reference module to receive detection signal and reference signal and output comparison signal;

[0013] Control module is connected with comparison module to receive comparison signal and output control signal;

[0014] The time execution module is connected with the control module to receive the control signal and respond to the control signal to start and close the starting time of the electromagnetic valve power supply circuit; the number of the reference module is the same as the selection module and the starting time of the selection module is synchronized;

[0015] If the detection signal is greater than the reference signal, the comparison module outputs a high level comparison signal, the control module receives the high level comparison signal to output the control signal, and the time execution module receives the control signal to close the electromagnetic valve power supply circuit and disconnect the electromagnetic valve power supply circuit after the starting time;

[0016] If the detection signal is less than the reference signal, the comparison module outputs a low level comparison signal, the control module receives the low level comparison signal and does not output the control signal, and the time execution module does not receive the control signal to control the power supply circuit of the electromagnetic valve.

[0017] By using the above technical scheme, the operator selects the reference signal of the reference module in advance through the selection module, and when the detection signal is greater than the reference signal, the electromagnetic valve is opened in the starting time through the time execution module, and the electromagnetic valve is closed after the starting time, so that the tap water can be filtered in advance by the water purifier installed with the electromagnetic valve, and the water purifier can filter the water of different regions to meet the standard, thereby improving the universality of the water purifier.

[0018] Optionally, the control module comprises:

[0019] The switch unit is connected with the comparison module to receive the comparison signal and output the switch signal;

[0020] The trigger unit is connected with the switch unit to receive the switch signal and output the control signal to the time execution module.

[0021] By using the above technical scheme, the trigger unit is controlled by the switch unit to output the control signal to the time execution module, so that the opening and closing of the electromagnetic valve can be controlled by the time execution module.

[0022] Optionally, the control module further comprises:

[0023] The optocoupler unit is connected with the switch unit to receive the switch signal and output the optocoupler signal to the trigger unit;

[0024] The trigger unit is connected with the optocoupler unit to receive the optocoupler signal and output the control signal to the time execution module.

[0025] By using the above technical scheme, the optocoupler unit receives the switch signal and outputs the optocoupler signal, so that the signal can be isolated, thereby improving the quality of signal transmission.

[0026] Optionally, the reference module is further provided with an adjusting unit for changing the reference signal.

[0027] By using the above technical scheme, the adjusting unit can change the reference signal, so that the operator can adjust the reference signal to the required signal.

[0028] Optionally, the time execution module is further provided with an indicating unit for displaying the working state of the time execution module.

[0029] By using the above technical scheme, the indicating unit displays the working state of the time execution module, so that the operator can know the working state of the time execution module.

[0030] Optionally, the selection module and the reference module are provided with a protection module corresponding to the number of the selection module and used for protecting the circuit.

[0031] By using the above technical scheme, the protection module protects the circuit, so that the stability of the circuit conduction can be improved.

[0032] Optionally, the power module is further provided with a boost module for boosting the power module and supplying power to the electromagnetic valve.

[0033] By using the above technical scheme, the boost module boosts the power module, so that the electromagnetic valve can be supplied with power to control the opening and closing of the electromagnetic valve.

[0034] Optionally, the boost module comprises:

[0035] The boost unit is used for boosting the power module and supplying power to the electromagnetic valve.

[0036] By using the above technical scheme, the boost unit boosts the power module, so that the power module can boost the power supply to the electromagnetic valve.

[0037] Optionally, the boost module further comprises:

[0038] The filter unit is connected with the boost unit and used for filtering the boost unit.

[0039] By using the above technical scheme, the filter unit filters the boost unit, so that the boost unit can be screened and provided with stable current.

[0040] Optionally, the boost module further comprises:

[0041] The anti-interference unit is connected with the boost unit and used for suppressing the high-frequency interference of the power module.

[0042] By adopting the technical scheme, the anti-interference unit is used to suppress the high-frequency interference of the power module, so that the normal conduction operation of the circuit can be ensured.

[0043] In summary, the utility model has at least one of the following beneficial technical effects:

[0044] 1. By the operator preselects the reference signal of the reference module through the selection module, and the detection signal is greater than the reference signal, the electromagnetic valve is opened in the starting time through the time execution module, and the electromagnetic valve is closed after the starting time, so that the water purifier installed with the electromagnetic valve can prefilter the tap water, the water purifier can filter the water of different regions to meet the standard of pure water, and the universality of the water purifier is improved.

[0045] 2. The light coupling unit is used to receive the switch signal and output the light coupling signal, so that the signal can be isolated and purified, and the quality of signal transmission is improved.

[0046] 3. The anti-interference unit is used to suppress the high-frequency interference of the power module, so that the normal conduction operation of the circuit can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 is the circuit of the control system of the environmental protection intelligent water purifier Figure 1 ;

[0048] Figure 2 is the circuit of the control system of the environmental protection intelligent water purifier Figure 2 ;

[0049] Figure 3 is the water circuit diagram of the control system of the environmental protection intelligent water purifier of the utility model;

[0050] Figure 4 is the water circuit of the control system of the environmental protection intelligent water purifier Figure 2 .

[0051] The part names referred to by the numbers in the above drawings are as follows: 1, detection module; 2, selection module; 3, reference module; 4, comparison module; 5, control module; 6, time execution module; 7, switch unit; 8, trigger unit; 9, optocoupler unit; 10, adjustment unit; 11, indication unit; 12, protection module; 13, voltage boosting module; 14, voltage boosting unit; 15, filter unit; 16, anti-interference unit; 17, water inlet assembly; 18, circulation assembly; 19, filtration assembly; 20, drive assembly; 21, filter element assembly; 22, control system; 23, pure water electromagnetic valve; 24, high-voltage switch; 25, waste water electromagnetic valve; 26, check valve; 27, discharge electromagnetic valve; 28, tap water angle valve; 29, low-voltage switch; 30, water inlet electromagnetic valve; 31, first-stage filter element; 32, second-stage filter element; 33, third-stage filter element; 34, flushing valve; 35, first pressure reducing valve. DETAILED DESCRIPTION

[0052] The above drawings will be described below Figures 1 to 4 The utility model is further described in detail with the embodiments.

[0053] Referring to Figure 1 The utility model discloses a control system of environmental protection intelligence water purifier, including power module, the detection module 1 for detecting water quality parameter and conversion into detection signal, selection module 2, the reference module 3 for providing different reference signal, comparison module 4, control module 5 and time execution module 6 for being used to detect water quality parameter and conversion into detection signal. Control module 5 includes switch unit 7, trigger unit 8 and optocoupler unit 9, and the reference module 3 is connected with adjustment unit 10 for changing reference signal, and the time execution module 6 is connected with indication unit 11 for showing the working state of time execution module 6, and the selection module 2 is connected with the protection module 12 for protecting circuit corresponding with the quantity of selection module 2 between the reference module 3, and the power module is connected with electromagnetic valve between voltage boosting module 13. Voltage boosting module 13 is used for boosting power module, and voltage boosting module 13 includes voltage boosting unit 14, filter unit 15 and anti-interference unit 16. Power module is used to provide voltage for detection module 1, reference module 3, selection module 2, comparison module 4, control module 5 and time execution module 6. In this embodiment, the power module is power VCC, and the specific voltage is selected by the staff according to the actual situation, which is not described here.

[0054] Referring to Figure 1, the detection module 1 is used for detecting water quality parameters and converting into detection signals, the comparison module 4 is connected with the detection module 1 and the reference module 3 to receive the detection signals and the reference signals for comparison and output comparison signals, the adjusting unit 10 is connected with the reference module 3, the selection module 2 is connected between the reference module 3 and the comparison module 4 to make the reference module 3 and the comparator N1 conductive to each other, and the selection module 2 is connected with the reference module 3 and has the protection module 12 for protecting a circuit.

[0055] With reference to Figure 1 The detection module 1 adopts a TDS test probe with a model number of CPPS10-DN. The comparison module 4 adopts a comparator N1 with a model number of LM358. The reference module includes a resistor R3-1. The protection module 12 includes a resistor R1-1. The adjusting unit 10 adopts a potentiometer R2-1 with a model number of 3266X. The selection module 2 includes synchronous switches S1-1 and S1-2. In the embodiment, the reference module 3 is provided with a plurality of groups, which are switched through the selection module 2. In the embodiment, two groups are taken as an example for disclosure.

[0056] With reference to Figure 1 The reference module 3 is provided with two groups, the first group is connected with the power supply VCC through one end of the potentiometer R2-1, the other end of the potentiometer R2-1 is connected with one end of the resistor R3-1 and one end of the resistor R1-1, the other end of the resistor R3-1 is connected with the ground GND, and the other end of the resistor R1-1 is connected with one end of the synchronous switch S1-1. The other end of the synchronous switch S1-1 is connected with the inverting input end of the comparator N1.

[0057] The second group is connected with the power supply VCC through one end of the potentiometer R2-n, the other end of the potentiometer R2-n is connected with one end of the resistor R3-n and one end of the resistor R1-n, the other end of the resistor R3-n is connected with the ground GND, the other end of the resistor R1-n is connected with one end of the synchronous switch Sn-1, the other end of the synchronous switch S1-1 is connected with the other end of the synchronous switch Sn-1 and the inverting input end of the comparator N1, and the noninverting input end of the comparator N1 is connected with one end of the TDS test probe, and the other end of the TDS test probe is connected with the power supply VCC.

[0058] When the synchronous switch S1-1 is closed, the potentiometer R2-1, the resistor R3-1 and the comparator N1 are connected to provide reference signals, the TDS test probe is used for detecting water quality parameters and converting into detection signals, and the comparator N1 is connected with the TDS test probe, the potentiometer R2-1 and the resistor R3-1 to receive the detection signals and the reference signals and output comparison signals. If the detection signals are smaller than the reference signals, the comparator N1 outputs low-level comparison signals, and if the detection signals are greater than the reference signals, the comparator N1 outputs high-level comparison signals.

[0059] With reference toFigure 1 The switch unit 7 is connected with the comparison module 4 to receive the comparison signal and output the switch signal, the optocoupler unit 9 is connected with the switch unit 7 to receive the switch signal and output the optocoupler signal to the trigger unit 8, and the trigger unit 8 is connected with the optocoupler unit 9 to receive the optocoupler signal and output the control signal to the time execution module 6.

[0060] The switch unit 7 adopts the NPN type triode Q1 with the model number 9013. The optocoupler unit 9 adopts the optocoupler U1 with the model number PC187. The trigger unit 8 adopts the relay KM1 with the model number MY2N-GS-DC24V.

[0061] The output end of the comparator N1 is connected with the base of the triode Q1, the emitter of the triode Q1 is connected with the ground GND, the collector of the triode Q1 is connected with the cathode of the optocoupler U1, the anode of the optocoupler U1 is connected with the power supply VCC, the emitter of the optocoupler U1 is connected with the ground GND, the collector of the optocoupler U1 is connected with one end of the relay KM1, and the other end of the relay KM1 is connected with the power supply VCC.

[0062] When the comparator N1 outputs the high level comparison signal, the triode Q1 is connected with the comparator N1 to receive the high level comparison signal and turn on, and controls the optocoupler U1 to turn on, so as to control the relay KM1 to be powered.

[0063] Referring to Figure 1 The time execution module 6 is connected with the trigger unit 8 to receive the control signal and respond to the control signal to start or close the starting time of the electromagnetic valve power supply circuit. When the synchronous switch S1-2 is closed, the indication unit 11 is powered to display the working state of the time execution module 6.

[0064] The time execution module 6 adopts the time relay KT1 with the model number HHS5PF, and the indication unit 11 adopts the light emitting diode LED-1 with the model number patch 0603. In the embodiment, the time relay KT1 is arranged in the same number as the light emitting diode LED-1 and the reference module 3, and is switched through the synchronous switch S1-2. In the embodiment, two groups are taken as an example for disclosure.

[0065] The first group is connected with one end of the synchronous switch S1-2 through the relay normally open contact KM1-1, the other end of the synchronous switch S1-2 is connected with the cathode of the light emitting diode LED-1, the anode of the light emitting diode LED-1 is connected with the power supply VCC, the other end of the relay normally open contact KM1-1 is connected with one end of the time relay KT1, the other end of the time relay KT1 is connected with the ground GND. One end of the time relay normally open contact KT1-1 is connected with the power supply VCC.

[0066] When the synchronous switch S1-1 corresponding to potentiometer R2-1 is closed, synchronous switch S1-2 is also closed at the same time. Then, time relay KT1 is connected to the power module, so that it can receive the control information output by relay KM1, and the light-emitting diode LED-1 corresponding to time relay KT1 displays the light.

[0067] The second group connects one end of the normally open contact KM1-n of the relay to one end of the synchronous switch Sn-2. The other end of the synchronous switch Sn-2 is connected to the cathode of the light-emitting diode LED-n. The anode of the light-emitting diode LED-n is connected to the power supply VCC. The other end of the normally open contact KM1-n of the relay is connected to one end of the time relay KTn. The other end of the time relay KTn is connected to ground GND. One end of the normally open contact KTn-1 of the time relay is connected to the power supply VCC.

[0068] Time relay KT1 is connected to relay KM1 to receive control signals and generate current in response to the control signals to control the start of the solenoid valve. When synchronous switch S1-1 is closed, synchronous switch S1-2 is closed at the same time, and LED-1 connected to power supply VCC is energized to display light.

[0069] Reference Figure 1 and Figure 2 The boost module 13 is used to boost the voltage of the power module and supply power to the solenoid valve.

[0070] The boost unit 14 uses a switching regulator IC of model RH5RI. The filter unit 15 includes a tantalum capacitor C1 of model TAJ226K010RNJ and a Schottky diode D1 of model 1N5819 for rectification. The anti-interference unit 16 uses an inductor L1 of model PK0608.

[0071] The other end of the normally open contact KT1-1 of the time relay is connected to the other end of the normally open contact KTn-1 of the time relay and one end of the inductor L1. The other end of the inductor L1 is connected to the anode of the Schottky diode D1 and the IN terminal of the switching regulator IC. The OUT terminal of the switching regulator IC, the cathode of the Schottky diode D1, one end of the solenoid valve, and one end of the tantalum capacitor C1 are connected. The other end of the solenoid valve is connected to the other end of the tantalum capacitor C1 and ground GND. The VSS terminal of the switching regulator IC is connected to ground GND.

[0072] When the time relay KT1 is responsive to the control signal, the time relay normally open contact KT1-1 is closed, the switching regulator IC is connected with the Schottky diode D1 and the power supply VCC to boost the power supply VCC and supply power to the solenoid valve, the inductor L1 is connected with the switching regulator IC and used to suppress the high frequency interference of the power supply VCC, the tantalum capacitor C1 is connected with the switching regulator IC and the Schottky diode D1 and used to filter the switching regulator IC and the Schottky diode D1.

[0073] If the detection signal is greater than the reference signal, the comparison module 4 outputs a high level comparison signal, the switching unit 7 is connected with the comparator N1 to receive the high level comparison signal and output a switching signal, the optocoupler unit 9 is connected with the switching unit 7 to receive the switching signal and output an optocoupler signal to the trigger unit 8, the trigger unit 8 is connected with the optocoupler unit 9 to receive the optocoupler signal and output a control signal to the time execution module 6, the time execution module 6 is connected with the trigger unit 8 to receive the high level control signal to disconnect the solenoid valve power supply circuit and close the solenoid valve power supply circuit after the start time.

[0074] If the detection signal is less than the reference signal, the comparison module 4 outputs a low level comparison signal, the switching unit 7 is connected with the comparator N1 to receive the low level comparison signal and not output a switching signal, the trigger unit 8 does not output a control signal, and the time execution module 6 does not receive a control signal to control the solenoid valve power supply circuit to be disconnected.

[0075] Referring to Figure 3 , an environmentally friendly intelligent water purifier control system, comprising a water inlet assembly 17, a circulating assembly 18, a filter assembly 19, a driving assembly 20, a filter core assembly 21, a control system 22, a pure water solenoid valve 23 and a high voltage switch 24 connected in sequence, further comprising a waste water solenoid valve 25 connected with the filter core assembly 21 and the circulating assembly 18, a check valve 26 connected to the control system 22, and a discharge solenoid valve 27 connected between the waste water solenoid valve 25 and the circulating assembly 18. The control system 22 is connected with a flushing valve 34 for flushing the filter assembly 19.

[0076] Referring to Figure 3 , the water inlet assembly 17 is used to replenish water for the circulating assembly 18, and the water inlet assembly 17 comprises a tap angle valve 28 connected in sequence and used to introduce tap water, a low voltage switch 29 used to protect the circuit, a first pressure reducing valve 35 used to control the tap water replenishment water pressure, and a water inlet solenoid valve 30 used to output tap water. When the water flow through the low voltage switch 29 is less than the preset parameter, the low voltage switch 29 controls the water inlet solenoid valve 30 to be closed. The preset parameter of the low voltage switch 29 is set by a person skilled in the art according to the actual situation, which is not described here.

[0077] Referring to Figure 3The circulating assembly 18 is a circulating barrel, a water inlet is arranged at a connection position between the circulating barrel and the water inlet electromagnetic valve 30, a water outlet is arranged at a connection position between the circulating barrel and the filtering assembly 19, and a concentrated water backflow outlet is arranged at a connection position between the circulating barrel and the waste water electromagnetic valve 25.

[0078] With reference to Figure 3 The filtering assembly 19 is used for filtering tap water in the circulating barrel, and the filtering assembly 19 comprises a first filter element 31, a second filter element 32 and a third filter element 33 which are sequentially connected in communication. The first filter element 31 is connected in communication with the water outlet of the circulating barrel, and the first filter element 31 can be a front large fat filter element. The second filter element 32 can be a PP cotton filter element, and the third filter element 33 can be an ultrafiltration membrane filter element. In the embodiment, the number and specifications of the first filter element 31, the second filter element 32 and the third filter element 33 can be set by the staff according to the actual situation, and details are not described herein.

[0079] With reference to Figure 3 The driving assembly 20 is used for driving water in the circulating barrel to be filtered, and the driving assembly 20 is connected between the second filter element 32 and the third filter element 33. The driving assembly 20 is connected in communication with the second filter element 32 and the third filter element 33 respectively, and the driving assembly 20 is a water pump.

[0080] With reference to Figure 3 The filter element assembly 21 is used for filtering water of the third filter element 33, and the filter element assembly 21 is used for generating pure water and waste water. The filter element assembly 21 comprises a pure water outlet and a waste water outlet, and the control system 22 is connected in communication with the pure water outlet of the filter element assembly 21. In the embodiment, the filter element assembly 21 can be a 100G model RO membrane filter element.

[0081] With reference to Figure 3 The pure water electromagnetic valve 23 is used for discharging pure water and is connected in communication with the control system 22. The high-voltage switch 24 is used for high-voltage protection. When the water flow passing through the high-voltage switch 24 exceeds a preset reference parameter, the high-voltage switch 24 controls the pure water electromagnetic valve 23 to be closed. The preset reference parameter of the high-voltage switch 24 is set by the person skilled in the art in advance, and details are not described herein.

[0082] With reference to Figure 3 The discharge electromagnetic valve 27 is used for discharging waste water, and the discharge electromagnetic valve 27 is connected in communication with the circulating barrel and the waste water electromagnetic valve 25 respectively. When the discharge electromagnetic valve 27 discharges waste water, the water pressure of the pipeline in the discharge electromagnetic valve 27 is zero, so that the waste water in the waste water electromagnetic valve 25 can flow to the discharge electromagnetic valve 27 to be discharged to the sewer.

[0083] With reference to Figure 3The check valve 26 is used to reduce the backflow of water, and is connected to the circulating barrel and the pure water outlet of the RO membrane filter core respectively. In the embodiment, the check valve 26 is provided with a plurality of check valves.

[0084] With reference to Figure 4 If the detection signal is greater than the reference signal, the comparison module 4 outputs a high-level comparison signal, the control module 5 receives the high-level comparison signal to output a control signal, and the time execution module 6 receives the control signal to disconnect the power supply circuit corresponding to the pure water electromagnetic valve 23, the discharge electromagnetic valve 27 and the flushing valve 34, and closes the power supply circuit corresponding to the pure water electromagnetic valve 23, disconnects the discharge electromagnetic valve 27 and the flushing valve 34 after the start time.

[0085] When the pure water electromagnetic valve 23 is disconnected, the discharge electromagnetic valve 27 is closed, and the flushing valve 34 is closed, the RO membrane filter core is flushed through the flushing valve 34, and the flushed pure water and filtered wastewater are discharged through the discharge electromagnetic valve 27 within a preset reference time, so that the pure water discharged from the cleaned RO membrane filter core meets the standard. The preset reference time refers to the time for the discharge electromagnetic valve 27 to discharge wastewater, and the reference time is set by the person skilled in the art in advance according to the falling condition of the parameter detected by the TDS test probe and the preset reference parameter range, and the reference time is preferably set to 4 minutes, which will not be described here.

[0086] The reference parameter range refers to the parameter range corresponding to the time for controlling the discharge electromagnetic valve 27 to discharge wastewater, and the reference parameter range is set by the person skilled in the art according to the actual situation, and the reference parameter range is preferably set to TDS value 1-50, which will not be described here.

[0087] With reference to Figure 4 If the detection signal is less than the reference signal, the comparison module 4 outputs a low-level comparison signal, the control module 5 receives the low-level comparison signal and does not output a control signal, and the time execution module 6 does not receive the control signal to close the power supply circuit corresponding to the pure water electromagnetic valve 23, the discharge electromagnetic valve 27 and the flushing valve 34, so as to continue to control the pure water electromagnetic valve 23 to discharge pure water.

[0088] The implementation principle of the control system of the environment-friendly intelligent water purifier is: the operator sets the reference module 3 to provide different reference signals to the comparison module 4, and the operator selects the reference signal through the selection module 2, the water quality parameter is detected through the detection module 1 and is converted into a detection signal, the comparison module 4 compares the detection signal with the reference signal and outputs a comparison signal, the control module 5 receives the comparison signal and outputs a control signal, the time execution module 6 receives the control signal and responds to the control signal to control the electromagnetic valve to start, and after the starting time, the power supply circuit corresponding to the pure water electromagnetic valve 23, the closed discharge electromagnetic valve 27 and the flushing valve 34 is disconnected.

[0089] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A control system of an environmentally friendly intelligent water purifier, characterized in that, The application relates to a water quality detection device, which comprises the following parts: a power module for providing voltage for a detection module (1), a reference module (3), a selection module (2), a comparison module (4), a control module (5) and a time execution module (6); the detection module (1) is used for detecting water quality parameters and converting the water quality parameters into detection signals; the reference module (3) is provided with a plurality of reference modules and is used for providing different reference signals; the selection module (2) is connected with the reference module (3) and is used for selecting the reference signals; the comparison module (4) is connected with the detection module (1) and the reference module (3) to receive the detection signals and the reference signals and output comparison signals; the control module (5) is connected with the comparison module (4) to receive the comparison signals and output control signals; the time execution module (6) is connected with the control module (5) to receive the control signals and close the electromagnetic valve power supply circuit in response to the control signals and open the electromagnetic valve power supply circuit after a starting time; the number of the reference modules (3) is the same as the number of the selection modules (2) and the starting time is synchronously switched by the selection modules (2); when the detection signals are greater than the reference signals, the comparison module (4) outputs high-level comparison signals, the control module (5) receives the high-level comparison signals to output control signals, and the time execution module (6) receives the control signals to close the electromagnetic valve power supply circuit and open the electromagnetic valve power supply circuit after the starting time; when the detection signals are less than the reference signals, the comparison module (4) outputs low-level comparison signals, the control module (5) receives the low-level comparison signals and does not output control signals, and the time execution module (6) does not receive the control signals to control the electromagnetic valve power supply circuit.

2. The control system of the environmentally friendly intelligent water purifier according to claim 1, characterized in that, The control module (5) comprises: a switch unit (7) connected with the comparison module (4) to receive the comparison signals and output switch signals; a trigger unit (8) connected with the switch unit (7) to receive the switch signals and output control signals to the time execution module (6).

3. The control system of the environmentally friendly intelligent water purifier according to claim 1, characterized in that, The control module (5) further comprises: an optocoupler unit (9) connected with the switch unit (7) to receive the switch signals and output optocoupler signals to the trigger unit (8); the trigger unit (8) is connected with the optocoupler unit (9) to receive the optocoupler signals and output control signals to the time execution module (6).

4. The control system of the environmentally friendly intelligent water purifier according to claim 1, characterized in that: The device further comprises an adjusting unit (10) arranged on the reference module (3) and used for changing the reference signals.

5. The control system of the environmentally friendly intelligent water purifier according to claim 1, characterized in that: The device further comprises an indicating unit (11) arranged on the time execution module (6) and used for displaying the working state of the time execution module (6).

6. The control system of the environmentally friendly intelligent water purifier according to claim 1, characterized in that: The selection module (2) is provided with a protection module (12) corresponding to the number of the selection modules (2) and used for protecting the circuit between the selection module (2) and the reference module (3).

7. The control system of the environmentally friendly intelligent water purifier according to claim 1, characterized in that: The device further comprises a voltage boosting module (13) used for boosting the voltage of the power module and supplying power to the electromagnetic valve.

8. The control system of the environmentally friendly intelligent water purifier according to claim 7, characterized in that, The voltage boosting module (13) comprises: a voltage boosting unit (14) used for boosting the voltage of the power module and supplying power to the electromagnetic valve.

9. The control system of the environmentally friendly intelligent water purifier according to claim 8, characterized in that, The voltage boosting module (13) further comprises: a filter unit (15) connected with the voltage boosting unit (14) and used for filtering the voltage boosting unit (14).

10. The control system of the environmentally friendly intelligent water purifier according to claim 8, characterized in that, The voltage boosting module (13) further comprises: An anti-interference unit (16) is connected to the voltage boosting unit (14) and is used to suppress high-frequency interference of the power module.

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