A control method of a water purifier with an extension port and a water purifier

Abstract

A control method for a water purifier with a diversion valve and the water purifier thereof, characterized by the following steps: 1. Start-up; 2. Diversion valve opening degree θ 初 1. Open the branch line of the unit to its maximum; 2. Check if there is flow in the ambient temperature water circuit. If yes, proceed to step 4; if not, proceed to step 7; 3. Set the diversion valve opening to θ1, and the ambient temperature water branch line receives V. 常 5. Check if there is flow in the water supply circuit. If yes, proceed to step 6; otherwise, proceed to step 3. 6. The diversion valve opening is θ2, and the normal temperature water branch receives V. 常 The water replenishment branch obtained V 补 Go back to step three; VII. Is there flow in the water supply line? If yes, go to step eight; if no, go to step two; VIII. The diversion valve opening is θ3, and the water supply branch receives V. 补 Return to step three. The advantages of this invention are: by adding a diversion valve to the branch line of the sub-unit, multiple water circuits can be connected. By optimizing the water circuit control, the problem of unstable water output at room temperature during the simultaneous use of multiple water circuits is solved. While ensuring the user experience of room temperature water use, it meets the needs of water replenishment and sub-unit water supply as much as possible.

Description

TECHNICAL FIELD

[0001] The present application relates to a water purifier device, in particular to a control method of a water purifier device with a branch outlet and a water purifier. BACKGROUND

[0002] At present, the existing commercial water purifier is generally as shown in the drawings, and the commercial water purifier is provided with a branch outlet. In the working waterway, a pressure barrel is arranged to store water in advance, and then the water source is delivered to the branch through the branch outlet. Figure 3

[0003] The existing Chinese utility model with patent number 201721437587.8, a vertical water purifier carrying multiple wall-mounted pipeline branches, proposes a vertical water purifier carrying multiple wall-mounted pipeline branches, which comprises a vertical water purifier and multiple wall-mounted pipeline branches. The vertical water purifier is composed of a water making module, a cold and hot module, a pressure barrel and a first electric control device. The multiple outlet ports of the water supply module are connected to the water inlets of the vertical water purifier and the multiple wall-mounted pipeline branches, respectively. The vertical water purifier directly supplies water to the water storage tank and the pressure barrel by using its own water making module, which can reasonably distribute the water to the wall-mounted pipeline branches, realize the simple combination of the two, and achieve simple installation.

[0004] Generally, the water flow of the water purifier is equal to the water flow of normal temperature water. The designer will design the diameter of the water outlet nozzle according to the water flow of normal temperature water to ensure the good water type of normal temperature water in use. However, in the prior art, the commercial water purifier with a branch outlet, when using normal temperature water, if the branch is opened or the water supply operation is started, the stored water in the pressure barrel will be consumed faster than normal, and since the water flow of the water purifier is divided by the waterway of the branch outlet or the water supply waterway, the water flow of the normal temperature water becomes smaller, which easily causes the water type to fluctuate or even stop flowing.

[0005] In summary, in order to prevent the water flow of the water purifier from being divided by the waterway of the branch outlet and ensure the sufficient supply of normal temperature water, the waterway structure and control method of the current water purifier need to be further improved and improved. SUMMARY

[0006] The first technical problem to be solved by the present application is to provide a water purifier control method that can meet the branch water supply as much as possible on the basis of ensuring the main machine water experience.

[0007] The second technical problem to be solved by the present application is to provide a water purifier that uses the above-mentioned water purifier control method to work.

[0008] ​The technical scheme adopted by the present application to solve the first technical problem is as follows: a control method of a water purification device with an extension port, characterized in that a flow divider valve is arranged on a water path of the extension port of the water purification device, the flow divider valve comprises a normal-temperature water branch connected with a normal-temperature water outlet water path, a water supplement branch connected with a heating tank water supplement water path, and an extension port branch connected with an extension port water outlet water path, and the control method of the water purification device comprises the following steps:

[0009] Step one: program starting, initialization setting, and the water purification device being in a standby state;

[0010] Step two: setting the opening degree of the flow divider valve to θ 初 At this time, the normal-temperature water branch and the water supplement branch of the flow divider valve are closed, and the extension port branch of the flow divider valve is opened to the maximum;

[0011] Step three: the first flow meter detects whether there is flow data display in the normal-temperature water outlet water path, if yes, step four is executed; if no, step seven is executed;

[0012] Step four: adjusting the opening degree of the flow divider valve to θ1, at this time, the normal-temperature water branch of the flow divider valve is opened and can obtain a preset normal-temperature water flow V 常 ;

[0013] Step five: the second flow meter detects whether there is flow data display in the water supplement water path of the heating tank for hot water preheating, if yes, step six is executed; if no, step three is returned;

[0014] Step six: adjusting the opening degree of the flow divider valve to θ2, at this time, the normal-temperature water branch and the water supplement branch of the flow divider valve are both opened, the normal-temperature water branch obtains a preset normal-temperature water flow V 常 , and the water supplement branch obtains a preset water supplement flow V 补 , and then step three is returned;

[0015] Step seven: the second flow meter detects whether there is flow data display in the water supplement water path of the heating tank, if yes, step eight is executed; if no, step two is returned;

[0016] Step eight: adjusting the opening degree of the flow divider valve to θ3, the water supplement branch of the flow divider valve is opened, and the water supplement branch obtains a preset water supplement flow V 补 , and then step three is returned.

[0017] In order to ensure the water shape of the outlet water and make the flow more stable during use, as an optimization, the initialization setting of step one comprises setting a normal-temperature water flow V 常 during normal use of the normal-temperature water and setting a water supplement flow V 补 during normal work of the water supplement. The normal-temperature water flow V 常 and the water supplement flow V 补Generally, the water purification flux, the capacity of the water storage tank, the heating power, the hot water outlet flux, the cold water outlet flux, the hot water outlet structure, the cold water outlet structure and other parameters of the water purification system are required to be set according to the design.

[0018] As preferred, the priority order of the flow stability of the three branches of the flow distribution valve is: normal temperature water branch > water supplement branch > extension outlet branch. By setting the priority of the three application water states, it can be ensured that the normal temperature water is preferentially and sufficiently supplied, and the flow is not taken away by the extension or the water supplement tank, so as to prevent the phenomenon of flow fluctuation or water interruption of the normal temperature water during use; when the normal temperature water is not used, the water supplement flow is preferentially ensured, and finally the extension outlet flow is ensured.

[0019] In order to accurately adjust the opening size of the flow distribution valve, as preferred, the opening adjustment of the flow distribution valve in steps four, six and eight is realized by a PID control algorithm.

[0020] The opening adjustment method of the flow distribution valve specifically includes the following steps:

[0021] Step 1: The flow meter detects the actual flow value of the current branch, and the difference between the actual flow value and the preset flow value is obtained;

[0022] Step 2: According to the above difference, the opening size of the flow distribution valve required to reach the preset flow value of the current branch is converted;

[0023] Step 3: The opening size required to adjust the flow distribution valve is converted into a pulse signal for controlling the rotation of the motor of the flow distribution valve, and the opening size of the flow distribution valve is adjusted by the rotation of the motor;

[0024] Step 4: It is judged whether the flow of the current branch reaches the preset flow, if yes, the program ends, if not, it returns to step 1.

[0025] As further preferred, the PID control algorithm includes but is not limited to a network neural algorithm, a fuzzy algorithm and an adaptive algorithm. Various PID algorithms in the prior art can be used to realize the adjustment and control of the opening size of the flow distribution valve.

[0026] The technical solution adopted by the present application to solve the second technical problem is: a water purification machine, comprising a water path formed by a water inlet, a purification device and a water outlet, and a branch outlet for delivering water to a branch device is further arranged on the water path of the water purification machine, characterized in that: the water path control of the water purification machine is realized by the control method of the water purification equipment with the branch outlet as described above.

[0027] To improve purification efficiency, preferably, the water outlet includes a hot water outlet and a room temperature water outlet. The purification device includes a pre-filter, an inlet solenoid valve, a booster pump, and a post-filter connected in sequence by pipelines. The inlet is connected to the inlet of the pre-filter. The first path of the post-filter is connected to the room temperature water outlet via an ultraviolet lamp, a room temperature water solenoid valve, and a first flow meter. The second path is connected to the hot water outlet via a water replenishment solenoid valve, a second flow meter, a heating tank, and a hot water solenoid valve.

[0028] Preferably, the outlet also includes a concentrate drain outlet, and an RO filter element is provided between the booster pump and the post-filter element. The RO filter element is connected to the concentrate drain outlet via a concentrate solenoid valve.

[0029] As a further preferred embodiment, the outlet also includes a wastewater drain outlet, with one outlet of the heating tank connected to the hot water outlet via a hot water solenoid valve and the other connected to the wastewater drain outlet via a drain solenoid valve.

[0030] Compared with the prior art, the advantages of this invention are as follows: By adding a diversion valve to the branch line of the distributor port, the diversion valve can connect to multiple water lines, including the normal temperature water branch line, the water supply branch line, and the distributor port branch line. This allows for the distribution of water flow among the three branches. When normal temperature water is not being dispensed, the water purifier is in standby mode, and the opening of the distributor branch line is at its maximum, allowing water to flow from the distributor port to the distributor. When normal temperature water is being dispensed, the distributor branch line is closed, preventing water flow from being diverted by the distributor and ensuring sufficient water supply to the distributor port. When normal temperature water is being used, the opening of the diversion valve needs to be adjusted to reduce the flow in the water supply branch line and the distributor port branch line, prioritizing the stability of the normal temperature water flow. By optimizing the water circuit control, the problem of unstable normal temperature water output during the simultaneous use of multiple water lines is solved. At the same time, it ensures that the normal temperature water user experience is guaranteed while maximizing the satisfaction of water supply and distributor operation. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the water circuit structure of a water purification device according to an embodiment of the present invention.

[0032] Figure 2 This is a flowchart of the water circuit control method for a water purification device according to an embodiment of the present invention.

[0033] Figure 3 This is a schematic diagram of the water circuit structure of a water purification device with a branch port in the existing technology. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0035] like Figure 1 As shown in the figure, this embodiment discloses a water purifier with a separate outlet, which includes a water path formed by an inlet, a purification device and an outlet.

[0036] Specifically, the water outlet includes a hot water outlet, a normal temperature water outlet, a concentrated water drain outlet and a waste water drain outlet, wherein the normal temperature water channel includes an ultraviolet lamp, a normal temperature water electromagnetic valve and a first flow meter connected in series after a high pressure switch, and is finally connected to the normal temperature water outlet; a water supplement channel is further arranged on the waste water drain channel, and the water supplement channel includes a water supplement electromagnetic valve, a second flow meter and a heating tank connected in series after a high pressure switch; the heating tank is provided with a water level switch and a temperature sensor for sensing the temperature in the heating tank; a water outlet end of the heating tank is connected to the waste water drain outlet through a drain electromagnetic valve, thereby forming the waste water drain channel; and the water outlet end of the heating tank is connected to the hot water outlet through a hot water electromagnetic valve, thereby forming the hot water outlet channel.

[0037] The purification device includes a pre-filter, a water inlet electromagnetic valve, a booster pump, an RO filter and a post-filter connected in series through pipelines; the RO filter is connected to the concentrated water drain outlet through a concentrated water electromagnetic valve and a first one-way valve; a second one-way valve, a pressure tank and a high pressure switch are connected to the water outlet channel of the post-filter; the pressure tank is connected to a branch outlet through a shunt valve; and a normal temperature water outlet channel, a waste water drain channel and a hot water outlet channel are further arranged in series on the water outlet channel of the post-filter; the shunt valve includes an inlet connected to a total water channel and three branch channels which can be connected to each other, and the three branch channels are respectively a normal temperature water branch channel connected to the normal temperature water outlet channel, a water supplement branch channel connected to the heating tank water supplement channel and a branch outlet branch channel connected to the branch outlet water channel.

[0038] The functions of other devices in the water channel of the water purifier of the embodiment are as follows:

[0039] 1. The pre-filter: performs preliminary rough filtration on the water source.

[0040] 2. The water inlet electromagnetic valve: controls the water inlet of the total water purification system.

[0041] 3. The booster pump: performs pressure boosting on the water source, and can realize core filtration in cooperation with the RO filter.

[0042] 4. The RO filter: performs main fine filtration on the water source.

[0043] 5. The concentrated water electromagnetic valve: when the concentrated water electromagnetic valve is in a half-open state after power-off, the concentrated water of the RO filter can be discharged; when the concentrated water electromagnetic valve is in a full-open state after power-on, the water purification pipeline can be washed.

[0044] 6. The first one-way valve: prevents the backflow of the water in the sewer.

[0045] 7. The post-filter: improves the taste of the purified water filtered by the RO filter.

[0046] 8. Second check valve: Mainly to prevent water backflow, if the waterway is not provided with the second check valve, the pressure tank will be the water through the post-filter reverse pressure back to the post-filter and RO filter, and from the concentrated water solenoid valve, and thus will lead to waterway pressure relief, which will lead to frequent start of high pressure switch, causing the misoperation of high pressure switch.

[0047] 9. Pressure tank: for storing purified water, and providing a certain pressure for the stored water to flow.

[0048] 10. High pressure switch: by sensing the waterway pressure, thereby controlling the on-off of the water inlet solenoid valve and booster pump.

[0049] 11. Split valve: can control and adjust the flow of each branch (normal temperature water branch, make-up water branch and extension outlet branch).

[0050] 12. Ultraviolet lamp: for sterilizing normal temperature water.

[0051] 13. Flow meter: the first flow meter senses the flow of normal temperature water, and the second flow meter senses the flow of make-up water.

[0052] 14. Normal temperature solenoid valve: controls the outlet of normal temperature water.

[0053] 15. Make-up water solenoid valve: when the water level switch is at low water level, the make-up water solenoid valve is powered on to supply water to the heating tank, when the water in the heating tank reaches high water level, the make-up water solenoid valve is powered off to stop supplying water.

[0054] 16. Water level switch: can sense the amount of water in the heating tank.

[0055] 17. Heating tank: realizes pre-storage of hot water, and can heat the water in the heating tank, and stop heating when the predetermined temperature is reached.

[0056] 18. Temperature sensor: senses the temperature in the heating tank.

[0057] 19. Drain solenoid valve: drains the water in the heating tank that has not been used for a long time.

[0058] 20. Hot water solenoid valve: controls the outlet of hot water.

[0059] Generally, the outlet of normal temperature water is the core function of the water purifier device with the highest use frequency, in order to ensure the stable outlet of normal temperature water, as shown in the figure, the embodiment adopts the following control method to realize the waterway control of the water purifier, which specifically includes the following steps: Figure 2

[0060] Step 1: Start the program, initialize the settings, and the water purifier device is in standby state; the initialization settings mainly include setting the normal temperature water flow V​常 and set the make-up water flow rate V 补 , the normal temperature water flow rate V 常 and the make-up water flow rate V 补 Generally, it needs to be set according to the design water purification flux of the water purification system, the capacity of the water storage tank, the heating power, the hot water outlet flow rate, the cold water outlet flow rate, the hot water outlet structure, the cold water outlet structure and other parameter requirements. When the equipment design is completed, these preset values are basically fixed.

[0061] Step two, set the shunt valve opening degree to θ 初 , the shunt valve opening degree θ 初 Generally, it is set to the maximum opening degree. At this time, the normal temperature water branch and the make-up water branch of the shunt valve are closed, and the extension port branch of the shunt valve is opened to the maximum.

[0062] Step three, the first flow meter detects whether the normal temperature water outlet waterway has flow data display, that is, whether the user uses normal temperature water. If yes, execute the next step four; if no, execute step seven.

[0063] Step four, adjust the shunt valve opening degree to θ1. At this time, the normal temperature water branch of the shunt valve is opened, and the extension port branch of the shunt valve is appropriately closed. The normal temperature water branch can reach the preset normal temperature water flow rate V 常 .

[0064] Step five, the second flow meter detects whether the make-up water waterway of the heating tank for hot water preheating has flow data display, that is, whether there is make-up water action. If yes, execute the next step six; if no, return to step three.

[0065] Step six, adjust the shunt valve opening degree to θ2. At this time, the normal temperature water branch and the make-up water branch of the shunt valve are opened. Under the condition of sufficient total flow rate, the normal temperature water branch is preferentially guaranteed to obtain the preset normal temperature water flow rate V 常 , then the make-up water branch is guaranteed to obtain the preset make-up water flow rate V 补 , and finally the flow rate of the extension port branch is considered, and then returns to step three.

[0066] Step seven, the second flow meter detects whether the make-up water waterway of the heating tank has flow data display. If yes, execute the next step eight; if no, return to step two.

[0067] Step eight, adjust the shunt valve opening degree to θ3. The make-up water branch of the shunt valve is opened. Under the condition that the normal temperature water branch is not opened, if the make-up water action is started, the make-up water branch is first guaranteed to obtain the preset make-up water flow rate V 补 , and then the flow rate of the extension port branch is considered, and then returns to step three.

[0068] In the above control method, the opening degree adjustment of the flow divider valve in steps four, six and eight can be realized by a PID control algorithm, specifically including the following steps:

[0069] Step 1, the flow meter detects the actual flow value of the current branch, and the difference between the actual flow value and the preset flow value is obtained;

[0070] Step 2, according to the above difference, the opening degree size of the flow divider valve required to reach the preset flow value of the current branch is converted;

[0071] Step 3, the opening degree size required for the flow divider valve is converted into a pulse signal for controlling the rotation of the motor of the flow divider valve, and the opening degree size of the flow divider valve is adjusted by the rotation of the motor;

[0072] Step 4, it is judged whether the flow of the current branch reaches the preset flow, if yes, the program ends, if not, it returns to step 1.

[0073] According to the above steps, for example, the first flow meter detects the current flow of the normal temperature water branch, and the current flow of the normal temperature water is compared with the preset normal temperature water flow V 常 The difference is compared; according to the difference, the opening degree required for the flow divider valve to reach the preset flow from the current flow is converted, the opening degree size corresponds to the pulse signal for the rotation of the motor of the flow divider valve, and the opening degree of the flow divider valve is adjusted by the rotation of the motor. Each adjustment of the system feedback current flow value, if not reach the preset flow, continue the above steps of the cycle, until to reach the set flow, form a closed loop feedback control.

[0074] The PID control algorithm can automatically correct the control system accurately and quickly, specifically, the opening degree size of the flow divider valve can be adjusted by using existing algorithms such as neural network algorithm, fuzzy algorithm and adaptive algorithm.

[0075] In this embodiment, the priority order of the flow stability of the three branches of the flow divider valve is: normal temperature water branch > water supplement branch > extension port branch, that is, the opening degree of the flow divider valve is adjusted to meet the size of the normal temperature water flow first, then the size of the water supplement flow, and finally the requirement of the extension port flow. When the total flow size of the equipment determines the water flow of each branch, if the total flow is sufficient, the normal temperature water flow, the water supplement flow and the extension port can be satisfied at the same time, but if the total flow is insufficient, the opening degree of the flow divider valve needs to be adjusted to meet the flow of the normal temperature water first.

[0076] The embodiment utilizes cooperation of the flow dividing valve and the flow meter to realize control of the normal temperature water flow, the hot water flow and the branch flow, and by adjusting the opening of the flow dividing valve, the flow of different branches can be controlled, the ratio of the normal temperature water flow, the hot water flow and the branch flow of the water purifier device is realized, the flow of the normal temperature water is stable, sudden change of the flow is prevented, and thus the best use experience is achieved.

[0077] In the description and claims of the application, terms are used that refer to relative positions to directionally orient various example structures and elements in the figures. The directionally oriented terms are used for purposes of illustration and the structure described is not necessarily constructed according to the terminology used. The directionally oriented terms are used to more particularly illustrate the embodiments of the present application. The directionally oriented terms are used for purposes of illustration and are not necessarily a limitation, as the application disclosed can be used in various orientations, unless indicated otherwise.

Claims

1. A control method for a water purification device with a separate inlet, characterized in that, The water purifier is equipped with a diversion valve on its outlet water line. This diversion valve includes a normal temperature water branch line connecting to the normal temperature water outlet line, a water supply branch line connecting to the heating tank water supply line, and an outlet branch line connecting to the outlet water line. The control method of the water purification equipment includes the following steps: Step 1: The program starts, initializes settings, and the water purifier is in standby mode; Step two, set the split valve opening θ 初 At this time, the split valve's normal temperature water branch and the makeup water branch are closed, and the split valve's extension port branch is opened to the maximum. Step 3: The first flow meter checks if there is flow data displayed in the outlet water path of the room temperature water. If yes, proceed to the next step, Step 4; otherwise, proceed to Step 7. Step four, adjust the split valve opening degree to θ1, at this time, the split valve's normal temperature water branch is opened and the preset normal temperature water flow V can be obtained 常 ; Step 5: The second flow meter checks whether there is flow data displayed in the water supply path of the heating tank used for hot water preheating. If yes, proceed to the next step, Step 6; otherwise, return to Step 3. Step 6: Adjust the opening of the diversion valve to θ2. At this time, both the ambient temperature water branch and the makeup water branch of the diversion valve are open, and the ambient temperature water branch obtains the preset ambient temperature water flow rate V. 常 The water supply branch obtains the preset water supply flow rate V. 补 Then return to step three; Step 7: The second flow meter checks whether there is flow data in the water supply path of the heating tank. If yes, proceed to the next step, Step 8; otherwise, return to Step 2. Step 8: Adjust the opening of the diversion valve to θ3. The water supply branch of the diversion valve opens, and the water supply branch obtains the preset water supply flow rate V. 补 Then return to step three.

2. The control method for a water purification device with a branch port according to claim 1, characterized in that: The initialization settings in step one include: setting the normal flow rate V of room temperature water during normal use. 常 And set the water replenishment flow rate V when the water replenishment is working normally. 补 .

3. The control method for a water purification device with a branch port according to claim 1, characterized in that: The priority order of flow stability of the three branches of the diversion valve is: ambient temperature water branch > water supply branch > distributor port branch.

4. The control method for a water purification device with a branch port according to claim 1, characterized in that: The opening degree adjustment of the diversion valve in steps four, six and eight is achieved through a PID control algorithm.

5. The control method for a water purification device with a branch port according to claim 4, characterized in that: The method for adjusting the opening of the diverter valve specifically includes the following steps: Step 1: The flow meter detects and obtains the actual flow value of the current branch, and the difference between the actual flow value and the preset flow value is calculated. Step 2: Calculate the opening degree required for the diversion valve to reach the preset flow value for the current branch based on the above difference. Step 3: Convert the required opening degree of the diverter valve into a pulse signal to control the rotation of the diverter valve motor, and adjust the opening degree of the diverter valve by rotating the motor. Step 4: Determine whether the current branch's flow rate has reached the preset flow rate. If yes, the program ends; otherwise, return to step 1.

6. The control method for a water purification device with a branch port according to claim 4, characterized in that: The PID control algorithm includes neural network algorithms, fuzzy algorithms, and adaptive algorithms.

7. A water purifier, comprising a water path formed by an inlet, a purification device, and an outlet, wherein the water path of the water purifier further includes an outlet for supplying water to a branch unit, characterized in that: The water circuit control of the water purifier is implemented using the control method for a water purifier with a sub-port as described in any one of claims 1 to 6.

8. The water purifier according to claim 7, characterized in that: The water outlet includes a hot water outlet and a normal temperature water outlet. The purification device includes a pre-filter, an inlet solenoid valve, a booster pump, and a post-filter connected in sequence by pipelines. The inlet is connected to the inlet of the pre-filter. The first path of the post-filter is connected to the normal temperature water outlet via an ultraviolet lamp, a normal temperature water solenoid valve, and a first flow meter. The second path is connected to the hot water outlet via a water replenishment solenoid valve, a second flow meter, a heating tank, and a hot water solenoid valve.

9. The water purifier according to claim 8, characterized in that: The outlet also includes a concentrate drain outlet. An RO filter element is installed between the booster pump and the post-filter element. The RO filter element is connected to the concentrate drain outlet via a concentrate solenoid valve.

10. The water purifier according to claim 7, characterized in that: The outlet also includes a wastewater drain outlet. One outlet of the heating tank is connected to the hot water outlet via a hot water solenoid valve, and the other outlet is connected to the wastewater drain outlet via a drain solenoid valve.

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