Control device for water purification system of saucepan and water purification system

Abstract

The utility model provides a control device for a water purification system of a saucepan and the water purification system, and belongs to the technical field of water purification system control. The system comprises a processing unit, a water quality detection unit, a communication module and an electromagnetic valve and pressure pump control module, the electromagnetic valve and pressure pump control module is connected with a water inlet valve and a water outlet valve; the water inlet valve is communicated with a water inlet in the top of the first-stage water purifier, and the drain valve is communicated with a water outlet in the bottom of the first-stage water purifier; the processing unit outputs control signals to the electromagnetic valve and the pressure pump control module at set time intervals to control the water inlet valve and the water outlet valve to be opened at the same time; the mode of automatically washing the filter element effectively reduces the workload and the cost, and improves the intelligent degree of the control device of the water purification system.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of water purification system control, especially relates to a control device for boiling pot water purification system and water purification system. BACKGROUND

[0002] The statements in this section merely provide background information related to the utility model and do not necessarily constitute the prior art.

[0003] At present, in the full-automatic boiling pot equipment, in order to the taste of food, food will pass through the process of overcooling, usually needs manual operation, in order to save manpower, generally adds the function of automatic overcooling in the boiling pot system, which needs to provide pure water for the boiling pot equipment.

[0004] Patent No. CN 205204853 U provides water purification system water production control device and water purification system, can good prevent the frequent switching of water purification machine water production working state, thereby prolonging the life of related devices. But still need manual cleaning filter element, increase workload and cost, also do not monitor the water quality in the water purification machine, the degree of intelligence is low, there is drinking water safety risk. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a control device for boiling pot water purification system and water purification system to solve the technical problem that the control device of water purification system in the prior art cannot intelligently control the water purification system.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model provides a control device for boiling pot water purification system in a first aspect, including processing unit and the solenoid valve and pressure pump control module connected therewith;

[0008] The solenoid valve and pressure pump control module connect inlet valve and drain valve;

[0009] The inlet valve is communicated with the water inlet of the upper portion of the first-stage water purifier by first pipeline, and the drain valve is communicated with the water outlet of the lower portion of the first-stage water purifier by second pipeline;

[0010] The inlet valve opens to make water flow into the filter element in the first-stage water purifier for flushing, and the drain valve opens to discharge the water flowing through the filter element;

[0011] The inlet valve and drain valve are connected with the solenoid valve and pressure pump control module, and the processing unit outputs control signals to the solenoid valve and pressure pump control module every set time to control the opening and closing of the inlet valve and drain valve.

[0012] Further, the water quality detection unit is further included, which is connected with the processing unit, arranged before the large pressure water storage barrel, and used for detecting the water quality value of water flowing into the large pressure water storage barrel once every set time.

[0013] Further, the water pressure detection unit is further included, which is connected with the first water pressure sensor, the second water pressure sensor and the third water pressure sensor.

[0014] Further, the first water pressure sensor is arranged between the pressure stabilizing valve and the water inlet valve, and used for acquiring the water pressure signal before the water inlet valve.

[0015] Further, the second water pressure sensor is arranged before the water outlet valve, and used for acquiring the water pressure signal before the water outlet valve.

[0016] Further, the third water pressure sensor is arranged between the water outlet valve and the large pressure water storage barrel.

[0017] Further, the pressure pump is arranged between the activated carbon filter core and the stop valve.

[0018] Further, the water pipe of the boiling pot system is connected to the water outlet of the large pressure water storage barrel through the cooling electromagnetic valve.

[0019] The second aspect of the utility model provides a water purification system, which applies the control device as described in the first aspect of the utility model.

[0020] The technical scheme of the utility model has the following beneficial effects:

[0021] 1. The automatic filter core flushing of the utility model can avoid frequent replacement of filter cores, reduce workload and cost, and improve intelligent control of the water purification system.

[0022] 2. The water pressure module detection of the utility model can automatically make water and stop, reduce manual operation, and the detection of the first water pressure sensor at the water inlet end can protect system components under the condition of water stop or low water pressure, and prolong the service life.

[0023] 3. The TDS value detection and alarm of the utility model can make people more convenient to understand the state of the water purification system.

[0024] The advantages of the additional aspect of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings constituting a part of the present application are used to provide further understanding of the present application, the schematic embodiments of the present application and the explanations thereof are used to explain the present application, and do not constitute improper limitation on the present application.

[0026] Figure 1 It is the whole structure schematic view of the present application.

[0027] Figure 2 It is the hardware connection schematic view of the present application.

[0028] Figure 3 It is the principle diagram of the processing unit in one embodiment of the present application.

[0029] Figure 4 It is the principle diagram of the power module circuit in one embodiment of the present application.

[0030] Figure 5 It is the principle diagram of the water pressure detection unit in one embodiment of the present application.

[0031] Figure 6 It is the principle diagram of the electromagnetic valve and pressure pump control module in one embodiment of the present application.

[0032] Figure 7 It is the principle diagram of the communication module in one embodiment of the present application.

[0033] Figure 8 It is the principle diagram of the water quality detection unit in one embodiment of the present application.

[0034] Marked in the figure: 1, processing unit; 2, water pressure detection unit; 21, first water pressure sensor; 22, second water pressure sensor; 23, third water pressure sensor; 3, communication module; 4, power module; 5, electromagnetic valve and pressure pump control module; 51, water inlet valve; 52, water outlet valve; 53, stop valve; 54, drain valve; 55, pressure pump; 6, water quality detection unit; 7, boiling pot system; 8, first stage water filter; 9, activated carbon filter element; 10, reverse osmosis membrane; 11, pressure stabilizing valve; 12, first small pressure water storage bucket; 13, second small pressure water storage bucket; 14, waste water ratio valve; 15, large pressure water storage bucket; 16, second stage water purifier; 17, cool electromagnetic valve; 18, first check valve; 19, second check valve; 20, third check valve. DETAILED DESCRIPTION

[0035] It should be pointed out that the following detailed description is exemplary, and aims to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as that generally understood by the ordinary skilled in the art to which the present application belongs.

[0036] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application.

[0037] The overall idea provided by the present application is:

[0038] The water purification system automatic control device provided by the present application integrates a processing unit, a water pressure detection unit, a communication module, a power module, a solenoid valve and a pressure pump control module, and a water quality detection unit, is used for full-automatic boiling, controls the start and stop of the entire water purification system through the water pressure detection unit, flushes the filter core every 2 hours according to the pure water making time, detects the water quality in real time, and saves manpower and filter core replacement.

[0039] Embodiment 1

[0040] As shown in Figure 1 The present application discloses a control device for a boiling water purification system, which comprises a processing unit 1 and a solenoid valve and pressure pump control module 5 connected thereto.

[0041] The solenoid valve and pressure pump control module 5 is connected with a water inlet valve 51 and a drain valve 54.

[0042] The water inlet valve 51 is connected with the water inlet of the upper part of the first-stage water filter 8 through a first pipeline, and the drain valve 54 is connected with the water outlet of the lower part of the first-stage water filter 8 through a second pipeline.

[0043] When the water inlet valve is opened, water flows into the first-stage water filter to flush the filter core, and when the drain valve is opened, the water flowing through the filter core is discharged.

[0044] The water inlet valve 51 and the drain valve 54 are both connected with the solenoid valve and pressure pump control module 5, the processing unit 1 outputs a control signal to the solenoid valve and pressure pump control module 5 every set time, and controls the opening and closing of the water inlet valve 51 and the drain valve 52.

[0045] In one or more embodiments, the present application further comprises a water quality detection unit 6, which is connected with the processing unit 1 and is arranged before the large pressure water storage barrel 15, and is used for detecting the water quality value flowing into the large pressure water storage barrel 15 once every set time, and when the water quality value exceeds the set threshold value, the processing unit 1 sends water quality abnormal alarm information to the boiling system 7 through the communication module 3. It should be noted that the water quality detection unit 6 is arranged at the last link of the water purification system, and the purpose is to test the water quality of the produced pure water, so as to avoid the situation that the water quality is deteriorated due to the internal reason of the water purification system.

[0046] In one or more embodiments, the utility model further include water pressure detection unit 2, water pressure detection unit 2 connect first water pressure sensor 21, second water pressure sensor 22 and third water pressure sensor 23.Electromagnetic valve and pressure pump control module 5 still connect water outlet valve 52, stop valve 53 and pressure pump 55.

[0047] In some embodiments, as shown in Figure 3 The processing unit 1 used by the utility model can be a single-chip microcomputer with a model number ARM Cortex-M3 and a core STM103RET6, which receives signals of various modules and controls operation of the various modules.

[0048] Specifically, in the circuit of the processing unit 1, VCC_3.3V is provided by the power module 4 and connected to the 48, 64, 19 and 32 pins of the chip STM32F103RET6 through filter capacitors C1, C2, C3 and C4 to supply power to the central processing module, and VCC_3.3V is connected to the 13 pin of the chip STM32F103RET6 through a magnetic bead L2 and filter capacitors C35, C34 and C36 to provide a reference voltage for AD conversion; the PA11, PA10 and PA9 pins of the single-chip microcomputer STM32F103RET6 are connected to the water pressure detection circuit to detect the states of the first water pressure sensor 21, the second water pressure sensor 22 and the third water pressure sensor 23 respectively; the PC6, PB15, PB14, PB13 and PA6 pins of the single-chip microcomputer STM32F103RET6 are connected to the electromagnetic valve and pressure pump control circuit to control opening and closing of the water inlet valve 51, the water outlet valve 52, the stop valve 53, the drain valve 54 and the pressure pump 55 respectively; the PC12, PC11 and PC10 pins of the single-chip microcomputer TM32F103RET6 are connected to the communication module circuit to control information communication; and the PC3 pin of the single-chip microcomputer TM32F103RET6 is connected to the water quality detection unit 6 to detect the output voltage of the TDS integrated module and perform AD conversion.

[0049] In some embodiments, as shown in Figure 4 The power module 4 used by the utility model is a switch power supply LRS-35-24 and a 24V-to-5V voltage circuit and a 5V-to-3.3V voltage circuit. The power module 4 adopts an AMS1117-3.3 chip, the 4th pin of which outputs a 3.3V voltage, i.e., VCC_3.3V, which is connected to the 48, 64, 19 and 32 pins of the single-chip microcomputer to supply power to the single-chip microcomputer and also connected to the 13 pin of the single-chip microcomputer through L2 to provide a reference voltage for the single-chip microcomputer.

[0050] Specifically, the power module 4 circuit is composed of 24V to 5V circuit and 5V to 3.3V circuit, the 24V and GND of the switching power supply LRS-35-24 are connected to two pins of CN3 as input power respectively, the 2 pin of CN3, that is, VCC_24V is protected by the TVS tube D2, then is filtered by C22 and C23 capacitors, provides 24V voltage for the remaining modules respectively, and provides input 24V voltage for the 24V to 5V circuit, R8 and LED1 form a power indication circuit, and LED1 is bright when the circuit board is powered on; wherein the 24V to 5V circuit is composed of a power chip TPS5430DDA and a peripheral circuit, VCC_24V is filtered by C19 and then enters the 7 pin of the TPS5430DDA chip, then passes through the starting capacitor C20, the external capture diode D1, the inductor L1, the filter capacitor C21, and the R6 and R7 voltage division output VCC_5V; wherein the 5V to 3.3V circuit is composed of a power chip AMS1117-3.3 and a filter circuit, VCC_5V is provided by the above-mentioned 24V to 5V circuit, is filtered by C15 and C16 capacitors and enters the AMS1117-3.3A pin, is output from the 2 and 4 pins and is filtered by C17 and C18 to form VCC_3.3V.

[0051] In some embodiments, as shown in Figure 5 The water pressure detection unit 2 used by the utility model can use an optical coupler PC817B to collect the water pressure signals of the first water pressure sensor 21, the second water pressure sensor 22 and the third water pressure sensor 23 in the system.

[0052] Specifically, the water pressure detection circuit mainly consists of three light couplings PC817B, current limiting resistors and pull-up resistors, wherein VCC_24V, VCC_3.3V and GND are provided by the power module 4 to supply power for the water pressure detection module, CN4, CN5 and CN6 are connected to the first water pressure sensor 21, the second water pressure sensor 22 and the third water pressure sensor 23 respectively. The output signal of the first water pressure sensor 21 is connected to the pin 1 of the light coupling PC817B through the current limiting resistor R11, the pins 2 and 3 of the PC817B are connected to GND, one end of the R12 is connected to VCC_3.3V and the other end is connected to the pin 4 of the PC817B to form a pull-up resistor, the pin PA11 of the single-chip microcomputer in the processing unit 1 is connected to the pin 4 of the PC817B, and the state of the first water pressure switch sensor is obtained by detecting the level state of the pin 4 of the PC817B; when the first water pressure sensor 21 detects water pressure, the first water pressure sensor 21 outputs a 24V voltage signal, which is transmitted to the pin 1 of the PC817B through the R11, the pin 2 is connected to GND, and the pins 1 and 2 form a differential pressure conduction, that is, the pins 3 and 4 of the PC817 are conducted, and the pin 3 is connected to GND, so that the single-chip microcomputer PA11 in the processing unit 1 detects a low-level signal; when the first water pressure sensor 21 does not detect water pressure, the first water pressure sensor 21 outputs a low-level signal, which is transmitted to the pin 1 of the PC817B through the R11, the pin 2 is connected to GND, and the pins 1 and 2 do not form a differential pressure conduction, that is, the pins 3 and 4 of the PC817 are not conducted, the pin 4 of the PC817B is connected to VCC through the R12, and the voltage of the pin 4 is 3.3V, so that the single-chip microcomputer PA11 in the processing unit 1 detects a high-level signal; the above three paths are the same.

[0053] In some embodiments, as shown in Figure 6 The electromagnetic valve and pressure pump control module adopts a driving circuit composed of Darlington tube ULN2803AG and relays to control the opening and closing of the water inlet valve 51, the water outlet valve 52, the cut-off valve 53, the drain valve 54 and the pressure pump 55.

[0054] Specifically, the solenoid valve and pressure pump control module adopts a drive circuit composed of a Darlington tube ULN2803AG and a relay, wherein VCC_24V and GND are provided by the power supply module 4, the solenoid valve and pressure pump control module is powered, and a 5-way control is shared. The PC6 pin of the single-chip microcomputer in the processing unit 1 is connected to the 1 pin of the relay K3 through U8, i.e., the ULN2803AG chip, to control the relay K3; when the PC6 pin of the single-chip microcomputer in the processing unit 1 outputs a high level, it passes through the ULN2803AG chip, and the 1C pin of the ULN2803AG outputs a low level. 1C is connected to the 1 pin of K3, then the 1 pin of K3 is low, and the 2 pin of K3 is connected to VCC_24V. At this time, K3 is energized, and the 4 and 5 pins of K3 are turned on. The 4 pin of K3 is connected to the 2 pin of CN7, and the 5 pin of K3 is connected to VCC_24V. Thus, the 2 pin of CN7 is turned on with VCC_24, and since the 1 pin of CN7 is connected to G ND, then there is a 24V voltage difference between the two pins of CN7, so CN7 is connected to the water inlet solenoid valve, and the water inlet solenoid valve is open. When the single-chip computer PC6 in the processing unit outputs a low level, it passes through the ULN2803AG chip, and the 1C pin of ULN2803AG outputs a high level. 1C is connected to pin 1 of K3, so pin 1 of K3 is high, and pin 2 of K3 is connected to VCC_24V. At this time, K3 is not powered, and pins 3 and 4 of K3 are turned on. Pin 4 of K3 is connected to pin 2 of CN7, and pin 3 of K3 is connected to GND. Therefore, pin 2 of CN7 is turned on and GND is turned on. Since pin 1 of CN7 is connected to GND, there is no voltage difference between the two pins of CN7, so CN7 is connected to the water inlet solenoid valve, and the water inlet solenoid valve is closed; R17 and LED2 form a prompt circuit, which is connected to pin 2 of CN7 and GND. When there is a 24V voltage on pin 2 of CN7, LED2 lights up, and D13 is TVS protection. The same applies to the above 5 circuits.

[0055] In some embodiments, as Figure 7 As shown, the communication module 3 adopts 485 communication protocol to transmit alarm information of abnormal water pressure and abnormal TDS value to the boiling pot system 7. The boiling pot system is an intelligent boiling pot device that can communicate with the control device of the present invention and receive alarm information.

[0056] Specifically, the communication module 3 circuit consists of four parts: a power isolation circuit, a 485 signal isolation circuit, a 485 transceiver control signal isolation circuit, and a 485 / TTL level conversion circuit. Among them, the power isolation circuit, VCC_5V and GND are provided by the power module 4, filtered by capacitors C7 and C6 and enter the 1 and 2 pins of the DC-DC power isolation chip B0505S-1WR3, and the 3 and 4 pins are filtered by C8 and C9 to output 5V_485 voltage and GND_485, providing isolation voltage for the 485 signal isolation circuit, the 485 transceiver control signal isolation circuit, and the 485 / TTL level conversion circuit; wherein the 485 signal isolation circuit is composed of a dual-channel digital isolator chip CA-IS3722HS, VCC_3.3V and GND are provided by the power module 4, filtered by C11 and enter the 1 and 4 pins of CA-I S3722HS, 5V_485 and GND_485 are provided by the above-mentioned power isolation circuit, filtered by C12 and enter the CA-I Pins 8 and 5 of the S3722HS and PC10 of the microcontroller in processing unit 1 transmit TTL-level signals to pin 3 of the CA-I S3722HS. Pin 6 outputs TTL-level signals 385_T and 485_R, which enter pin 7 of the CA-I S3722HS. Pin 2 outputs a TTL-level receive signal to PC11 of the microcontroller in processing unit 1. The 485 transmit and receive control signal isolation circuit is VCC_3.3V is provided by the power module 4, through the current limiting resistor R1 connects the 1 pin of the optocoupler EL357N(B)(TA)-G, 5V_485 is provided by the above-mentioned power isolation circuit, through C10 filtering connects the 4 pin of the optocoupler EL357N(B)(TA)-G, R2 one end connects 485_GND as a pull-down resistor, the other end connects the 3 pin of the optocoupler EL357N(B)(TA)-G, that is, the 485_RE signal, the high and low level of the 485_RE signal controls the receiving and sending of the 485 module, the level signal on the PC12 pin of the single-chip microcomputer in the processing unit 1 enters the 2 pin of the EL357N(B)(TA)-G, when the single-chip microcomputer PC12 outputs a high level, the 3, 4 pins of the EL357N(B)(TA)-G are not conductive, and there is no current on the R2, at this time, the 485_RE shows a low level, when the single-chip microcomputer PC12 outputs a low level, the 3, 4 pins of the EL357N(B)(TA)-G are conductive, and there is current on the R2, at this time, the 485_RE shows a high level; wherein the 485 / TTL level conversion circuit is mainly composed of the RS-485 transceiver chip GM485E, the purpose is to convert the TTL level signal that the single-chip microcomputer can accept into a 485 level signal, 5V_485 and GND_485 are provided by the above-mentioned power isolation circuit and are connected to the 8, 5 pins of the GM485E respectively to supply power for it, 485_R, 485_T, 485_RE are provided by the above-mentioned 485 signal isolation circuit and 485 transceiver control signal isolation circuit and are connected to the 1, 4 and 2, 3 pins of the GM485E respectively, when the 485_RE signal is a high level, that is, the PC12 pin of the single-chip microcomputer in the processing unit 1 outputs a low level, the sending signal on the PC10 of the single-chip microcomputer in the processing unit 1 enters the 485_T of the GM485E through the 485 signal isolation circuit CA-I S3722HS, and outputs the 485 level signal through the A, B pins to realize information sending, when the 485_RE signal is a low level, that is, the PC12 pin of the single-chip microcomputer in the processing unit 1 outputs a high level, the 485 level signal of the A, B pins enters the GM485E, and outputs the TTL signal from the 485_R pin, which is received by the PC11 pin of the single-chip microcomputer in the processing unit 1 through the 485 signal isolation circuit CA-I S3722HS to realize information receiving.

[0057] In some embodiments, as shown in Figure 8 The water quality detection unit 6 can be composed of a TDS integrated module and a voltage follower circuit.

[0058] Specifically, in the circuit of the water quality detection unit 6, the voltage output signal of the TDS integrated module is connected to the PC3 pin of the single-chip microcomputer through the voltage follower composed of U34 and R41, and then enters the PC3 pin of the single-chip microcomputer through the RC filter composed of R42 and C30 for AD conversion, and D15 is a TVS protection for the ADC interface.

[0059] In some embodiments, the single-chip microcomputer of STM103RET6 is connected with the pin 4 of the optical coupler PC817B in the circuit of the water pressure detection unit 2 through PA9, PA10, and PA11, respectively, to detect the state signals of the first water pressure sensor 21, the second water pressure sensor 22, and the third water pressure sensor 23 in the detection system.

[0060] In some embodiments, the single-chip microcomputer of STM103RET6 is connected with the 1B, 2B, 3B, 4B, and 5B pins of the Darlington transistor ULN2803AG in the circuit of the electromagnetic valve and pressure pump control module through PC6, PB15, PB14, PB13, and PA6, to control the opening and closing of the water inlet valve 51, the water outlet valve 52, the cut-off valve 53, the drain valve 54, and the pressure pump 55 in the water purification system.

[0061] In some embodiments, the water inlet valve 51 is arranged between the water pressure detection unit 2 and the first-stage water filter 8 in the water purification system, and is connected with CN7 of the electromagnetic valve and pressure pump control module 5, to allow water to flow into the first-stage water filter 8 when the water pressure of the water source is normal.

[0062] In some embodiments, the water outlet valve 52 is arranged between the third water pressure sensor 23 and the second water pressure sensor 22, and is connected with CN8 of the electromagnetic valve and pressure pump control module 5, to open the water outlet valve 52 to allow the prepared purified water to flow into the large pressure storage barrel 15 during the start of the water purification system, and to close the water outlet valve 52 to separate the water purification system from the large pressure storage barrel 15 when the water purification system is stopped, thereby preventing the purified water from being contaminated.

[0063] In some embodiments, the cut-off valve 53 is arranged between the pressure pump 55 and the reverse osmosis membrane, and is connected with CN20 of the electromagnetic valve and pressure pump control module 5, to allow water that has passed through the activated carbon filter 9 to flow into the reverse osmosis membrane 10 under the action of the pressure pump 55 when the cut-off valve 53 is opened, and to separate the pressure pump 55 from the reverse osmosis membrane 10 when the cut-off valve 53 is closed, thereby preventing water from flowing back.

[0064] In some embodiments, the drain valve 54 is arranged below the first-stage water filter 8, and is connected with CN21 of the electromagnetic valve and pressure pump control module 5, to flush the filter core in the first-stage water filter 8, and to flush the filter core when the water inlet valve 51 is opened at the same time.

[0065] In some embodiments, the pressure pump 55 is arranged between the activated carbon filter 9 and the cut-off valve, and is connected with CN22 of the electromagnetic valve and pressure pump control module 5, to increase the water pressure when the cut-off valve 53 is opened, so that water that has passed through the activated carbon filter 9 can smoothly pass through the reverse osmosis membrane 10 behind.

[0066] In some embodiments, the STM103RET6 single-chip microcomputer is connected with the 2nd and 3rd pins of CA-IS3722HS in the communication module 3 circuit through PC10 and PC11 respectively, and PC12 is connected with the 2nd pin of EL357N(B)(TA)-G for communication with the boiling pot system 7 and transmission of alarm information.

[0067] In some embodiments, the STM103RET6 single-chip microcomputer is connected with the 7th pin of LM358 in the water quality detection unit 6 circuit through PC3 after RC filtering, so as to detect the voltage value of the TDS module, and obtain the TDS value after AD conversion.

[0068] It should be noted that the utility model does not involve the improvement of algorithm program, and the algorithm program involved in the utility model is prior art.

[0069] The first water pressure sensor 21 is installed between the pressure stabilizing valve 11 and the water inlet valve 51, and is used to obtain the water pressure signal before the water inlet valve 51, i.e. the first water pressure signal, which is transmitted to the processing unit 1 by the water pressure detection unit 2; specifically, the first water pressure sensor 21 is arranged after the water outlet end of the water source and before the water inlet valve 51, and is connected with CN4 in the water pressure detection unit 2 module, and is used to detect the water pressure of the water outlet end, i.e. the first water pressure signal; if the water pressure is too low and lower than the set value, i.e. lower than 0.1Mpa or in the case of water stop, the first water pressure signal obtained by the first water pressure sensor 21 is transmitted to the processing unit 1 by the water pressure detection unit 2, and the processing unit 1 outputs a control signal to the electromagnetic valve and the pressure pump control module after receiving the first water pressure signal, so as to close the water inlet valve 51, the stop valve 53, the drain valve 54 and the pressure pump 55, and stop the water purification system.

[0070] The second water pressure sensor 22 is arranged before the water outlet valve 52 and connected with CN5 in the water pressure detection unit 2 module, and is used to obtain the water pressure signal before the water outlet valve 52, i.e. the second water pressure signal, during the operation of the water purification system; if the large pressure storage barrel 15 is full, the water pressure will rise, which will cause the water pressure of the whole pipeline to rise, and when the water pressure is higher than the set water pressure threshold, it indicates that the large pressure storage barrel 15 is full and water is not needed, and the second water pressure signal is transmitted to the processing unit 1 by the water pressure detection unit 2, and the processing unit 1 outputs a control signal to the electromagnetic valve and the pressure pump control module after receiving the second water pressure signal, so as to close the water inlet valve 51, the stop valve 53, the drain valve 54 and the pressure pump 55, and stop the water purification system.

[0071] The third water pressure sensor 23 is arranged between the outlet valve 52 and the large pressure storage tank 15, and is used to obtain the water pressure signal before the large pressure storage tank 15, i.e. the third water pressure signal. The third water pressure sensor 23 is connected to CN6 in the water pressure detection unit 2. When the third water pressure sensor 23 detects that the water pressure signal of the large pressure storage tank 15 is lower than the set water pressure threshold, it indicates that the large pressure storage tank 15 is not full of water and water can continue to be produced. The water pressure detection unit transmits the third water pressure signal to the processing unit 1. After receiving the third water pressure signal, the processing unit 1 outputs a control signal to the electromagnetic valve and the pressure pump control module, so as to open the inlet valve 51, the stop valve 53, the drain valve 54 and the pressure pump 55, and make the water purification system start working.

[0072] The connection relationship between the various components is introduced from the water flow direction of the water outlet end of the water source to the water flow of the water purification system to the boiling pot system in this embodiment.

[0073] One side of the first water pressure sensor 21 is connected to the water source, i.e. the water outlet end, through the pressure stabilizing valve 11, and the other side is connected to the inlet valve 51. The inlet valve 51 is connected to the water inlet of the top of the first-stage water filter 8 through the 1 / 2-3 branch pipe (first pipe), and the second water outlet at the bottom of the first-stage water filter 8 is connected to the drain valve 54 through the 1 / 2-3 branch pipe (second pipe). The drain valve 54 is connected to the drain pipe through the first three-way pipe, and the water in the drain pipe is drained into the sewer pipe. The first water outlet of the first-stage water filter 8 is connected to the first small pressure storage tank 12 through one end of the second three-way pipe and the 1 / 4-2 branch pipe, and is connected to the water inlet of the activated carbon filter core 9 through the other end of the second three-way pipe and the 1 / 2-3 branch pipe. The water outlet of the activated carbon filter core 9 is connected to the pressure pump 55 through the 1 / 2-3 branch pipe, and the other side of the pressure pump 55 is connected to the stop valve 53 through the 3 / 8-3 branch pipe. One end of the stop valve 53 is connected to the water inlet of the second-stage water filter 16 containing the reverse osmosis membrane 10 through the third three-way pipe, and the other end is connected to the second small pressure storage tank 13 through the fourth three-way pipe and the third check valve 20. The other end of the fourth three-way pipe is connected to the first water inlet at the bottom of the second-stage water filter 16 through the fifth three-way pipe, and the other end is connected to the second water pressure sensor 22. The second water outlet at the side of the second-stage water filter 16 is connected to the waste water ratio valve 14 through the 3 branch pipe. The waste water ratio valve 14 is connected to the first check valve 18 through the 2 branch pipe, and then is connected to the first three-way pipe through the 2 branch pipe. The second water pressure sensor 22, the outlet valve 52, the second check valve 19 and the third water pressure sensor 23 are sequentially connected through the 3 branch pipe. One end of the third water pressure sensor 23 is connected to the water quality detection unit 6 through the sixth three-way pipe, and the other end is connected to the large pressure storage tank 15 through the seventh three-way pipe. The other end of the seventh three-way pipe is connected to the excess electromagnetic valve. The water pipe of the boiling pot system 7 is connected to the water outlet of the large pressure storage tank 15 through the cool electromagnetic valve 17, and the boiling pot system controls the cool electromagnetic valve 17 to be opened to obtain the water of the water purification system.

[0074] The first small pressure water storage barrel 12 is used for storing water after the water purification system is started, and the water in the first small pressure water storage barrel 12 can be used for reverse flushing of the filter core when the filter core is flushed. The second small pressure water storage barrel 13 is used for storing a small amount of pure water after the water purification system is started, and when the water purification system is stopped, half of the water in the second filter is pure water and the other half is unfiltered water. At this time, the pure water in the second small pressure barrel enters the second filter, flushes away the unfiltered water, and protects the reverse osmosis membrane 10. The waste water ratio valve 14 is used for adjusting the ratio of waste water and pure water. The larger the opening, the less pure water is obtained from the same volume of tap water, and the higher the purity. The large pressure water storage barrel 15 is used for storing filtered pure water for the boiling kettle system. The first check valve 18, the second check valve 19 and the third check valve 20 are used for preventing water flow from flowing in the reverse direction and causing pollution of the pure water.

[0075] The working process of the utility model is as follows:

[0076] When the water pressure at the water outlet end of the water purification system, that is, the water pressure of the water flow flowing out through the water outlet valve 52, is lower than the set value, that is, the third water pressure sensor 23 is triggered, the third water pressure sensor 23 outputs a third water pressure signal to the processing unit 1, and the processing unit 1 outputs a control signal to open the water inlet valve 51, the stop valve 53, the drain valve 54 and the pressure pump 55 through the electromagnetic valve and the pressure pump control module after receiving the signal, and the water purification system starts to work. When the water pressure at the water outlet end of the water purification system is higher than the set value, that is, the second water pressure sensor 22 is triggered, the second water pressure sensor 22 outputs a second water pressure signal to the processing unit 1, and the processing unit 1 outputs a control signal to close the water inlet valve 51, the stop valve 53, the drain valve 54 and the pressure pump 55 after receiving the signal, and the water purification system stops working.

[0077] In addition, during the working process of the water purification system, the first water pressure sensor 21 detects the water pressure signal at the water inlet end of the water purification system in real time. When the water inlet end stops water or the water pressure is less than the set water pressure threshold value, the first water pressure sensor 21 outputs a first water pressure signal to the processing unit 1, and the processing unit 1 outputs a control signal to stop the system from working after receiving the signal, so as to protect the system components from being damaged. At the same time, the processing unit 1 transmits an alarm prompt information of water pressure abnormality to the boiling kettle system 7 through the communication module 3. During the working process of the water purification system, the filter core is flushed once every two hours of water production, that is, the water production is stopped, the water inlet valve 51 and the drain valve 54 are opened, and the filter core is flushed by using water flow.

[0078] During the working process of the water purification system, the water quality (TDS) value is detected once every 10 minutes of water production. If the water quality value exceeds the set threshold value, the processing unit 1 transmits an alarm prompt information of TDS value abnormality to the boiling kettle system 7 through the communication module 3, so as to ensure the safety of drinking water.

[0079] It should be noted that the timing function in the embodiment is the prior art of the single-chip microcomputer, and the algorithm program is not improved, and the interval length of the filter core and the water quality detection can be adjusted by the person skilled in the art according to the actual needs, and the embodiment is not limited.

[0080] Embodiment 2

[0081] The embodiment provides a water purification system, which applies the control device of the boiling pot water purification system provided in the embodiment 1 and has the advantages of the control device of the boiling pot water purification system, which will not be repeated here.

[0082] Although the specific embodiments of the utility model are described above with reference to the drawings, it is not a limitation on the protection scope of the utility model, and the person skilled in the art should understand that various modifications or deformations made by the person skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. A control device for a water purification system of a boiling pot, characterized in that: It includes a processing unit and a solenoid valve and a pressure pump control module connected thereto; The solenoid valve and pressure pump control module are connected to the water inlet valve and the drain valve; The water inlet valve is connected to the water inlet at the upper part of the first-stage water purifier through a first pipeline, and the drain valve is connected to the water outlet at the lower part of the first-stage water purifier through a second pipeline; When the water inlet valve is opened, water flows in to flush the filter element inside the first-stage water purifier, and when the drain valve is opened, water flowing through the filter element is discharged; The water inlet valve and the drain valve are both connected to the solenoid valve and pressure pump control module. The processing unit outputs a control signal to the solenoid valve and pressure pump control module at set intervals to control the opening and closing of the water inlet valve and the drain valve.

2. A control device for a water purification system for a boiling pot according to claim 1, characterized in that: It also includes a water quality detection unit, which is connected to the processing unit and is arranged before the large pressure water storage tank, and is used to detect the water quality value flowing into the large pressure water storage tank once every set time.

3. A control device for a water purification system for a boiling pot according to claim 1, characterized in that: Also included is a water pressure detection unit, the water pressure detection unit being connected to the first water pressure sensor, the second water pressure sensor, and the third water pressure sensor; The solenoid valve and pressure pump control module is also connected to the water outlet valve, the stop valve and the pressure pump.

4. A control device for a water purification system for a boiling pot according to claim 3, characterized in that: The first water pressure sensor is installed between the pressure stabilizing valve and the water inlet valve, and is used to obtain the water pressure signal before the water inlet valve.

5. A control device for a water purification system for a boiling pot according to claim 3, characterized in that: The second water pressure sensor is arranged before the water outlet valve and is used to obtain the water pressure signal in front of the water outlet valve.

6. A control device for a water purification system for a boiling pot according to claim 3, characterized in that: The third water pressure sensor is arranged between the water outlet valve and the high-pressure water storage tank, and is used to obtain the water pressure signal in front of the high-pressure water storage tank.

7. A control device for a water purification system for a boiling pot according to claim 3, characterized in that: The stop valve is arranged between the pressure pump and the reverse osmosis membrane.

8. The control device for a water purification system for a boiling pot according to claim 1, characterized in that: The pressure pump is arranged between the activated carbon filter element and the stop valve.

9. The control device for a water purification system for a boiling pot according to claim 1, characterized in that: The water pipe of the boiling pot water purification system is connected to the water outlet of the large pressure water storage barrel through a cold solenoid valve.

10. A water purification system, characterized in that: A control device as described in any one of claims 1 to 9 is used.

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