CN217173313U - Water purifier - Google Patents
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- CN217173313U CN217173313U CN202123068788.4U CN202123068788U CN217173313U CN 217173313 U CN217173313 U CN 217173313U CN 202123068788 U CN202123068788 U CN 202123068788U CN 217173313 U CN217173313 U CN 217173313U
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Abstract
The utility model relates to a water purifier. The water purifier comprises: the detection device is arranged in the water purifier and is used for acquiring water quality operation parameters of the water purifier; the controller is connected with the detection device, determines the estimated total purified water quantity of the water purifier according to the water quality operation parameters, compares the estimated total purified water quantity with the designed total purified water quantity range, and controls the wastewater flow regulating device to regulate the wastewater flow of the water purifier when the estimated total purified water quantity is not in the designed total purified water quantity range; the wastewater flow regulating device is connected with the controller and responds to the control of the controller to regulate the wastewater flow of the water purifier; this purifier adjusts the waste water flow of purifier through control waste water flow adjusting device, can realize carrying out the self-adaptation regulation to the rate of recovery of purifier according to each local quality of water.
Description
Technical Field
The utility model relates to a water quality treatment technical field especially relates to a water purifier.
Background
With the development of science and technology and the improvement of the living standard of people, the requirement of people on the quality of drinking water is more and more strict, and in recent years, a reverse osmosis water purifier is popular because of being capable of effectively removing various pollutants in tap water. A part of water purifiers on the market are configured with a wastewater proportional valve/device when leaving a factory, and a part of water purifiers can be adjusted by installation personnel when being installed.
However, in the process of actual installation and use of the water purifier, the recovery rate is a set fixed value, so that the problems that the filter element is quickly blocked in a region with poor water quality and water is wasted in a region with good water quality easily occur.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a water purifier to solve the above technical problems.
A water purifier, the water purifier comprising:
the detection device is used for acquiring water quality operation parameters of the water purifier;
the controller is connected with the detection device, determines the estimated total purified water quantity of the water purifier according to the water quality operation parameters, compares the estimated total purified water quantity with a designed total purified water quantity range, and controls the wastewater flow regulating device to regulate the wastewater flow of the water purifier when the estimated total purified water quantity is not in the designed total purified water quantity range;
the waste water flow regulating device is connected with the controller and responds to the control of the controller to regulate the waste water flow of the water purifier; the wastewater flow rate is inversely related to the water quality.
In one embodiment, the controller controls the wastewater flow rate adjustment device to increase the wastewater flow rate when the predicted total net water amount is less than the lower limit of the designed total net water amount range.
In one embodiment, the controller determines a current wastewater flow gear when the predicted total net water amount is less than the lower limit of the designed total net water amount range; and when the current waste water flow gear is not the maximum gear, increasing the waste water flow gear.
In one embodiment, the controller controls the wastewater flow rate adjustment device to decrease the wastewater flow rate when the predicted total purified water amount is greater than an upper limit of the designed total purified water amount range.
In one embodiment, the controller determines a current wastewater flow gear when the expected total water purification amount is greater than an upper limit of the designed total water purification amount range; when the current wastewater flow gear is not the minimum gear, reducing the wastewater flow gear.
In one embodiment, the detection device comprises a flow sensor; the water quality operation parameters comprise purified water flow.
In one embodiment, the detection apparatus further includes: a temperature sensor; the water quality operation parameters also comprise water temperature.
In one embodiment, the wastewater flow regulating device comprises: and the adjustable waste water valve is arranged on the waste water branch, and the flow of the waste water is adjusted through the adjustable waste water valve.
In one embodiment, the adjustable waste water valve has a plurality of flow passages corresponding to a plurality of flow steps or flow openings of various sizes corresponding to a plurality of flow steps.
In one embodiment, the wastewater flow regulating device comprises: the waste water flow reflux device and a waste water valve are arranged on the waste water branch;
the backflow device comprises a wastewater backflow branch, and a backflow electromagnetic valve and a throttling hole which are arranged on the wastewater backflow branch; one end of the wastewater backflow branch is connected with the wastewater branch, and the other end of the wastewater backflow branch is connected with a water inlet of a booster pump of the water purifier; and adjusting the waste water flow of the water purifier by adjusting the on-off state of the reflux electromagnetic valve.
The utility model provides an above-mentioned purifier, the expected total water purification volume of purifier, the quality of water operational parameter according to the water purification in the purifier is confirmed, thereby can reflect the influence of quality of water to purifier water purification ability, when the expected total water purification volume is not in the scope of purifier design total water purification volume, be less than the lower limit of design total water purification volume scope promptly, or be greater than the upper limit of design total water purification volume scope, it leads to not being in the total water purification volume within range of design to show that water purification ability receives local quality of water influence, adjust the waste water flow of purifier through controlling waste water flow adjusting device, can realize carrying out the self-adaptation regulation according to each place quality of water to the rate of recovery of purifier.
Drawings
FIG. 1 is a schematic structural diagram of a water purifier in one embodiment;
FIG. 2 is a schematic diagram of an embodiment of a reverse osmosis water purifier;
FIG. 3 is a schematic diagram of an embodiment of an adjustable waste valve having multiple flow channels;
FIG. 4 is a schematic diagram of an embodiment of an adjustable waste valve with flow openings of various sizes;
FIG. 5 is a schematic diagram of an embodiment of an adjustable waste valve cartridge having flow openings of various sizes;
FIG. 6 is a schematic structural diagram of an upper valve plate of the stepless regulating valve in one embodiment;
FIG. 7 is a schematic structural diagram of a lower valve plate of the stepless regulating valve in one embodiment;
fig. 8 is a schematic structural diagram of a water purifier in another embodiment.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
In one embodiment, as shown in fig. 1, a conventional water purifier includes a raw water inlet, a pre-filter element, a water inlet solenoid valve, a pressure stabilizing pump, a reverse osmosis membrane filter element, a post-filter element, a waste water outlet, a purified water outlet, and a water flow branch between the above components.
The front filter element is an important water purifying part in the water purifier and is generally connected with a raw water inlet of the water purifier. Raw water to be filtered enters the water purifier from the raw water inlet, a front filter element of the water purifier performs first filtering operation on the raw water to filter harmful substances such as silt, rust, bacteria, colloid, macro-organic matters and the like in the raw water, and the raw water subjected to the first filtering operation is obtained.
The reverse osmosis membrane filter element is the core part of the reverse osmosis water purifier. The water purification schematic diagram of the reverse osmosis water purifier is shown in fig. 2, raw water after the first filtering operation flows through a water inlet electromagnetic valve and a pressure stabilizing pump of the water purifier, the pressure stabilizing pump applies certain pressure to the raw water, so that water molecules and ionic mineral elements pass through a reverse osmosis membrane filter element and are filtered into drinkable pure water, and most of inorganic salt (including heavy metal), organic matters, bacteria and viruses dissolved in the water cannot pass through the reverse osmosis membrane filter element, so that the drinkable pure water is changed into non-drinkable waste water. Drinkable purified water continuously passes through the post-positioned filter element through the purified water producing branch and then flows out of the purified water outlet. The non-drinkable waste water flows out of the waste water opening via the waste water branch.
Based on this, in this embodiment, provide a purifier, include:
and the detection device 102 is used for acquiring water quality operation parameters in the water purifier.
The detection device 102 is disposed in the reverse osmosis water purifier, and the specific position is not limited in the present application, as long as the water quality operation parameters of the purified water of the water purifier can be obtained through the detection data. Taking a water quality operation parameter as an example of a flow parameter, if the detection device 102 is arranged in a water production branch of a reverse osmosis membrane filter element of the water purifier, the detection device detects water flowing through the water production branch, and the obtained flow parameter is the flow parameter of purified water of the water purifier; if the detection device 102 is disposed on the water inlet branch of the reverse osmosis membrane filter element of the water purifier, the detection device detects water flowing through the water inlet branch to obtain a flow parameter of inlet water entering the reverse osmosis membrane filter element, and the purified water flow parameter of the water purifier can be obtained by subtracting the current wastewater flow parameter of the water purifier from the detected inlet water flow parameter, wherein the current wastewater flow parameter of the water purifier is known. Preferably, in this embodiment, the detection device 102 is disposed on the water production branch 101 of the reverse osmosis membrane cartridge.
Specifically, the detection device 102 may detect water flowing through the water production branch 101 of the water purifier in real time to obtain a water quality operation parameter. In this application, detection device can be for sensor device, also can be for arbitrary detection device, as long as can detect and gather the quality of water operating parameter of purifier normal water can, this application does not limit to this.
The water quality operation parameters are the water quality parameters of the purified water after the raw water flowing through the water purifier is filtered by each filter element in the operation process of the water purifier. It can be understood that the parameter types specifically contained in the water quality operation parameters can be one type or multiple types, different types of detection devices can be adopted for detecting and collecting the water quality parameters aiming at each type of parameters, and meanwhile, the specific setting positions of the detection devices are not unique, so long as reasonable collection can be carried out on various different water quality parameters of purified water.
Specifically, in the operation process of the water purifier, the detection device 102 arranged on the reverse osmosis membrane filter element water production branch 101 can detect the water quality of the water flowing through the water production branch 101, and obtain and collect corresponding water quality operation parameters. The detection device 102 is connected to the controller 104, and can transmit the collected water quality operation parameters to the controller 104. Because the detection device 102 is arranged on the water production branch 101 of the reverse osmosis membrane filter element of the water purifier, the water quality operation parameters detected in the application are the water quality operation parameters of the purified water generated by the water purifier.
And the controller 104 is connected with the detection device 102, determines the expected total purified water quantity of the water purifier according to the water quality operation parameters, compares the expected total purified water quantity with the designed total purified water quantity range, and controls the wastewater flow regulating device 106 to regulate the wastewater flow of the water purifier when the expected total purified water quantity is not in the designed total purified water quantity range.
The estimated total purified water amount of the water purifier is the total purified water amount of a reverse osmosis membrane filter element obtained by prediction according to the water quality operation parameters obtained by current detection, and means the estimated total purified water amount which can be achieved when the reverse osmosis membrane filter element of the water purifier performs water purification work within the preset service life of the water purifier under the current water quality.
The designed total purified water amount of the water purifier means the total purified water amount which can be reached by the reverse osmosis membrane filter element of the water purifier when the purified water flow of the water purifier is higher than the preset nominal purified water flow within the preset service life of the water purifier. It is understood that the total water purification amount is not a constant value, but a range including an upper limit value and a lower limit value.
After the raw water in the water purifier is subjected to purification treatment such as reverse osmosis, wastewater containing more impurities and purified water which can be used for drinking can be obtained, and the recovery rate of the water purifier refers to the ratio of the purified water of the produced water in the reverse osmosis water purifier to the raw water.
Wherein, the calculation mode of purifier rate of recovery does:
X recovery rate ＝V Flow rate of purified water /(V Flow rate of purified water +V Flow of waste water )，
Wherein X Recovery rate Indicates the recovery rate of the water purifier V Flow rate of purified water Representing net water flow data, V Flow of waste water Representing wastewater flow data.
Specifically, the controller 104 determines a predicted total purified water amount of the water purifier according to the water quality operation parameters, compares the predicted total purified water amount with a designed total purified water amount range of the water purifier, and when the predicted total purified water amount is smaller than the designed total purified water amount range or the predicted total purified water amount is larger than the designed total purified water amount range, determines that the predicted total purified water amount is not within the designed total purified water amount range, the controller 104 generates a control regulation instruction, and sends the control regulation instruction to the wastewater flow regulating device 106. The wastewater flow control device 106 is used for controlling the wastewater flow of the water purifier to be adjusted, and the proportion of the purified water of the water purifier in the raw water flow can be adjusted by adjusting the wastewater flow, so that the recovery rate of the water purifier is adjusted.
The wastewater flow regulating device 106 is connected with the controller 104 and responds to the control of the controller 104 to regulate the wastewater flow of the water purifier;
the wastewater flow adjusting device 106 is a device capable of adjusting the wastewater flow of the water purifier. It will be appreciated that in this embodiment, the waste water flow regulating device 106 is provided in the waste water branch 103 of the reverse osmosis membrane cartridge.
Specifically, after receiving the control adjustment instruction sent by the controller 104, the wastewater flow adjustment device 106 executes a wastewater flow adjustment scheme corresponding to the control adjustment instruction to adjust the wastewater flow of the water purifier.
In the above-mentioned purifier, the expected total water purification volume of purifier, the quality of water operation parameter according to the water purification in the purifier is confirmed, thereby can reflect the influence of quality of water to purifier water purification ability, when the expected total water purification volume is not in the scope of purifier design total water purification volume, be less than the lower limit of design total water purification volume scope promptly, or be greater than the upper limit of design total water purification volume scope, it indicates that water purification ability receives local quality of water influence and leads to not being in the total water purification volume within range of design, adjust the waste water flow of purifier through controlling waste water flow adjusting device, can realize carrying out the self-adaptation regulation to the rate of recovery of purifier according to each place quality of water.
In one embodiment, the controller 104 controls the waste flow regulator 106 to increase the waste flow when the expected total purified water amount is less than the lower limit of the designed total purified water range.
As described in the background art, in the actual installation and use process of the reverse osmosis water purifier in the prior art, the problem of unstable water purification performance is easily caused due to a fixed recovery rate, and researches show that the reason for the problem is that the water quality difference is large across the country, and the water quality of each area is easily changed due to weather or other reasons even in the same area. For example, the traditional fixed purified water proportional valve is easy to have the problems of waste water valve blockage and reverse osmosis membrane blockage in areas with poor water quality.
Based on this, in this embodiment, after the controller 104 calculates the expected total purified water amount according to the water quality operation parameters, the expected total water inflow amount is compared with the range of the designed total purified water amount, and when the expected total purified water amount is smaller than the lower limit of the range of the designed total purified water amount, it indicates that the quality of the raw water passing through the water purifier is poor, the recovery rate initially set by the water purifier is higher, and it is necessary to reduce the recovery rate to prevent the water purifier from generating the problem of congestion due to scaling of a waste water valve or a reverse osmosis membrane. The controller 104 generates a wastewater flow increasing control instruction, sends the wastewater flow increasing control instruction to the wastewater flow regulating device 106, and controls the wastewater flow regulating device 106 to increase the wastewater flow of the water purifier. Through increasing the waste water flow, can reduce the water purification that the purifier produced the proportion in raw water volume to reduce the rate of recovery of purifier, prevent that the purifier from producing the problem that blocks up because of the scale deposit takes place for waste water valve or reverse osmosis filter membrane.
In one embodiment, the controller 104 determines the current wastewater flow gear when the expected total water purification amount is less than the lower limit of the designed total water purification amount range; when current waste water flow gear is not the maximum gear, increase waste water flow gear.
The waste water flow gear is related to the waste water flow, and the lower the waste water flow gear is, the smaller the waste water flow is; the higher the waste water flow gear, the greater the waste water flow through. The waste water flow gear can be the gear of waste water valve, and the waste water valve gear of difference corresponds different waste water flow promptly, and at this moment, waste water flow gear can be adjusted through the waste water valve. It can be understood that the specific number of waste water flow gears can be set according to the actual conditions and the actual water quality conditions of purifier, and this application does not limit this.
Specifically, when the estimated total purified water amount is smaller than the lower limit of the designed total purified water amount range, the controller 104 determines the current wastewater flow gear of the water purifier, when the current wastewater flow gear is not the maximum gear, a wastewater flow gear increasing adjustment control instruction is generated, the adjustment control instruction is sent to the wastewater flow adjusting device 106, and the wastewater flow adjusting device 106 responds to the wastewater flow gear increasing adjustment control instruction to increase the wastewater flow gear by one gear. Specifically, a larger waste water flow channel can be opened, the opening degree of the waste water valve can be increased, and a waste water valve channel can be added.
And if the current wastewater flow gear is the maximum gear, keeping the current wastewater flow gear unchanged. This embodiment reduces the proportion of the water purification that the purifier produced in former water flow through increase waste water flow gear to reduce the rate of recovery of purifier and prevent that the purifier from producing waste water valve or reverse osmosis membrane because the problem that the scale deposit takes place to block up.
In one embodiment, the controller 104 controls the wastewater flow adjustment device 106 to decrease the wastewater flow when the expected total purified water amount is greater than the upper limit of the designed total purified water range.
The traditional fixed water purification proportional valve is easy to cause waste of water resources in areas with good water quality. In this embodiment, after the controller 104 calculates the expected total purified water amount according to the water quality operation parameters, the expected total water inflow amount is compared with the range of the designed total purified water amount, and when the expected total purified water amount is greater than the upper limit of the range of the designed total purified water amount, it indicates that the quality of the raw water passing through the water purifier is better at present, the recovery rate of the initial setting of the water purifier is lower, and the problem of water resource waste of the water purifier in the water purifying process needs to be prevented by increasing the recovery rate. The controller 104 generates a wastewater flow reduction control instruction, sends the wastewater flow reduction control instruction to the wastewater flow regulation device 106, and controls the wastewater flow regulation device 106 to reduce the wastewater flow of the water purifier. Through reducing the waste water flow, can increase the proportion of the water purification that the purifier produced in former water flow to improve the rate of recovery of purifier, prevent the problem that the purifier leads to the waste of water resource again easily in the area that quality of water is good.
In one embodiment, the controller 104 determines the current wastewater flow gear when the expected total water purification is greater than the upper limit of the designed total water purification range; when the current waste water flow gear is not the minimum gear, the waste water flow gear is reduced.
Specifically, when the estimated total purified water amount is larger than the upper limit of the designed total purified water amount range, the controller 104 determines the current wastewater flow gear of the water purifier, when the current wastewater flow gear is not the minimum gear, a wastewater flow reduction gear adjusting control instruction is generated, the adjusting control instruction is sent to the wastewater flow adjusting device 106, and the wastewater flow adjusting device 106 responds to the wastewater flow reduction gear adjusting control instruction to reduce the wastewater flow gear by one gear. And if the current waste water flow gear is the minimum gear, keeping the current waste water flow gear unchanged. This embodiment increases the proportion of water purification in raw water volume that the purifier produced through reducing waste water flow gear to promote the rate of recovery of purifier, prevent the problem that the purifier leads to the waste of water resource again easily in the area that quality of water is good.
When the wastewater flow gear is increased or decreased, the wastewater flow gear is not limited to step-by-step adjustment, and the controller 104 may also control the wastewater flow adjusting device 106 to perform step-by-step adjustment on the current wastewater flow gear according to a difference between a preset total purified water amount and a designed total purified water amount.
Specifically, when the controller 104 determines that the predicted total purified water amount is smaller than the lower limit of the designed total purified water amount or the predicted total purified water amount is larger than the upper limit of the designed total purified water amount, the wastewater flow regulating device 106 is controlled to perform the step-by-step regulation on the current wastewater flow gear according to the difference between the predicted total purified water amount and the designed total purified water amount. For example, if the expected total purified water amount is smaller than the lower limit of the designed total purified water amount, and the difference between the expected total purified water amount and the designed total purified water amount is larger, the wastewater flow regulating device 106 may be controlled to increase the current wastewater flow gear by two or more gears. By using the method in the embodiment, when the difference value between the estimated total purified water amount and the designed total purified water amount is large, the wastewater adjusting device 106 can be directly controlled to adjust the wastewater flow gear to a proper gear without adjusting step by step, so that the whole adjusting process is more flexible and convenient.
In the above embodiment, the controller generates a corresponding control instruction for increasing or decreasing the flow rate of the wastewater when determining that the predicted total purified water amount is smaller than the lower limit of the designed total purified water amount or when the predicted total purified water amount is larger than the upper limit of the designed total purified water amount, and adjusts the flow rate of the wastewater of the water purifier by controlling the wastewater flow rate adjusting device, so that the proportion of the purified water in the raw water amount can be adjusted, the recovery rate of the water purifier is adjusted, and the self-adaptive adjustment of the recovery rate of the water purifier is realized, thereby solving the problems that the filter element of the water purifier is blocked quickly in a water quality poor region and water is wasted in a good water quality region.
In one embodiment, the detection device comprises a flow sensor; the water quality operation parameters comprise the flow rate of purified water.
The purified water flow refers to the amount of water passing through the flow sensor in unit time detected by the flow sensor when the purified water faucet is opened.
Specifically, when the purified water flows through the flow sensor, the flow sensor generates corresponding pulses, and the corresponding purified water flow can be calculated according to the number of the pulses correspondingly generated in unit time. For example, the water discharge amount per unit pulse is 0.15L, and if the flow sensor detects 20 pulses per unit time, the corresponding net water flow amount data is 0.15 × 20 — 3L/min.
The controller calculates to obtain the estimated total purified water amount according to the purified water flow obtained by the detection device, compares the estimated total purified water amount with the range of the designed total purified water amount, and adjusts the wastewater flow of the water purifier by controlling the wastewater flow adjusting device when the estimated total purified water amount is not in the range of the designed total purified water amount of the water purifier, so that the self-adaptive adjustment of the recovery rate of the water purifier according to the water quality of each region can be realized.
In one embodiment, the detection apparatus further comprises: a temperature sensor; the water quality operation parameters also include water temperature.
Specifically, the purified water flow and the water temperature of the water purifier are obtained according to data detected and collected by a flow sensor and a temperature sensor in the detection device, the accumulated total purified water amount of the water purifier is obtained according to a purified water flow meter of the water purifier, and the corrected purified water flow of the water purifier is obtained according to the purified water flow, the water temperature and a preset temperature correction coefficient of the water purifier. And calculating the attenuation coefficient based on the at least two groups of accumulated total purified water amount and the corrected purified water flow meter. It is understood that any two sets of accumulated total purified water and corrected purified water flow are detected within a predetermined time interval. And the controller calculates to obtain the predicted total purified water according to the attenuation coefficient, the accumulated total purified water, the corrected purified water flow and the preset nominal purified water flow.
The preset temperature correction coefficient is a temperature characteristic parameter of the reverse osmosis membrane and is a dimensionless parameter, and the main purpose of the parameter is to correct the purified water flow to obtain corrected purified water flow data when the temperature is 25 ℃. It can be understood that the value of the preset temperature correction coefficient is not fixed and unchanged, and the specific value of the preset temperature correction coefficient changes according to the actual temperature of the water purifier during use, one preset temperature correction coefficient is shown in table 1, the value of the preset temperature correction coefficient is 1 at a temperature of 25 ℃, the value of the preset temperature correction coefficient is greater than 1 when the temperature is lower than the temperature of 25 ℃, and the value of the preset temperature correction coefficient is less than 1 when the temperature is higher than the temperature of 25 ℃.
TABLE 1 Preset temperature correction factor
| Temperature Ti | 4℃ | 5℃ | 6℃ | 7℃ | 8℃ | 9℃ | 10℃ |
| K | 2.020 | 1.949 | 1.881 | 1.816 | 1.753 | 1.693 | 1.635 |
| Temperature Ti | 11℃ | 12℃ | 13℃ | 14℃ | 15℃ | 16℃ | 17℃ |
| K | 1.580 | 1.527 | 1.476 | 1.427 | 1.380 | 1.335 | 1.292 |
| Temperature Ti | 18℃ | 19℃ | 20℃ | 21℃ | 22℃ | 23℃ | 24℃ |
| K | 1.250 | 1.210 | 1.172 | 1.135 | 1.099 | 1.065 | 1.032 |
| Temperature Ti | 25℃ | 26℃ | 27℃ | 28℃ | 29℃ | 30℃ | 31℃ |
| K | 1.000 | 0.970 | 0.940 | 0.912 | 0.885 | 0.858 | 0.833 |
| Temperature Ti | 32℃ | 33℃ | 34℃ | 35℃ | 36℃ | 37℃ | 38℃ |
| K | 0.808 | 0.785 | 0.762 | 0.740 | 0.719 | 0.698 | 0.679 |
| Temperature Ti | 39℃ | 40℃ | |||||
| K | 0.660 | 0.641 |
The total accumulated purified water amount is obtained by converting the accumulated pulse number detected by the flow sensor into the total water flow amount, the sum of all the pulse numbers detected by the flow sensor from the time when the water purifier is just installed and used to the current detection time is the accumulated pulse number, and the total accumulated purified water amount of the water purifier from the time when the water purifier is used to the current detection time can be calculated according to the unit water flow amount corresponding to the unit pulse number of the flow sensor and the accumulated pulse number. For example, if the unit water passing amount corresponding to the unit pulse is 0.15L, and the integrated pulse number recorded by the flow sensor is 50000, the integrated total purified water amount corresponding to the water purifier is 7500L, which is 0.15 × 50000.
And the corrected purified water flow is the purified water flow of the current water purifier at the temperature of 25 ℃. Specifically, the temperature sensor detects the temperature of water flowing through the temperature sensor, water temperature data of purified water is obtained according to the detected data, and corrected purified water flow can be obtained through calculation according to the purified water flow, the water temperature and a preset temperature correction coefficient acquired by the flow sensor.
In one embodiment, the calculation formula for correcting the flow rate of the purified water is as follows:
Q correcting the flow of purified water ＝Q Flow rate of purified water ×K Preset temperature correction coefficient (T Temperature of water )，
Wherein Q is Correcting the flow of purified water Corrected net water flow rate data, Q, representing the current detection moment Flow rate of purified water Data representing the flow rate of the purified water at the current moment of detection, K Preset temperature correction coefficient Representing a preset temperature correction coefficient, T Water temperature Representing the water temperature data of the purified water at the current detection moment.
The attenuation coefficient is reverse osmosis membrane flow attenuation coefficient, and the attenuation coefficient can reflect the speed of the water purification flow attenuation degree of a reverse osmosis filter element of the water purifier. The attenuation coefficient is generally a negative number, and the larger the absolute value of the attenuation coefficient is, the faster the pure water flow of the filter element is attenuated.
In one embodiment, the attenuation coefficient is calculated by the formula:
wherein, B i attenuation coefficient For attenuation coefficient data at the current detection time, L i Total Water purification For the accumulated total net water amount data, Q, at the current detection moment i correction of the flow of purified water Corrected net water flow data for the current detection time.
The average total net water amount calculated for the plurality of groups of total accumulated net water amounts,
average corrected net water flow calculated for multiple sets of corrected net water flow,
and
the calculation formula of (2) is as follows:
wherein i is the number of groups corresponding to the accumulated total purified water amount and the corrected purified water amount used for calculating the attenuation coefficient.
And the nominal water purification flow is the theoretical water purification flow marked by the water purifier according to the performance of the water purifier when the water purifier leaves a factory.
In one embodiment, the total net water amount is expected to be calculated by the formula:
E prediction of total water purification ＝(B Nominal purified water flow -Q i correction of the flow of purified water )/B i attenuation coefficient +L i Total Water purification ，
Wherein, E Prediction of total water purification For the predicted total water purification data at the current detection moment, B Nominal purified water flow For nominal net water flow data, Q i correction of the flow of purified water Corrected net water flow data for the current detection moment, B i attenuation coefficient For attenuation coefficient data at the current detection instant, L i Total Water purification And the data is the accumulated total purified water quantity data at the current detection moment.
In the above embodiment, the flow sensor and the temperature sensor in the detection device perform water quality detection on water flowing through the water purifier to obtain a purified water flow and a purified water temperature of the purified water in the water purifier, the collected purified water flow and the collected purified water temperature are transmitted to the controller, the controller calculates an accumulated total purified water amount and a corrected purified water flow amount of the water purifier according to a preset temperature correction coefficient according to the received purified water flow and the purified water temperature, calculates an attenuation coefficient based on at least two groups of the accumulated total purified water amount and the corrected purified water flow amount, and calculates a predicted total purified water amount according to the attenuation coefficient, the accumulated total purified water amount, the corrected purified water flow amount and a preset nominal purified water flow amount. By using the method in the embodiment, the estimated total purified water quantity can be obtained according to the water quality parameters detected in real time, so that the estimated total purified water quantity can reflect the influence of the water quality on the water purifying capacity of the water purifier.
In one embodiment, the wastewater flow regulating device comprises: the adjustable waste water valve is arranged on the waste water branch, and the flow of the waste water is adjusted through the adjustable waste water valve.
The waste water valve is an important part in water purifying equipment such as a water purifier, and the waste water valve is mainly used for timely discharging waste water generated in the filtering process, preventing the filter element from scaling due to the enrichment of waste water in the filter element and adjusting the internal pressure of the filter element to enable the filter element to work normally. It will be appreciated that an adjustable waste valve is a waste valve which can adjust the flow of waste through the waste. Through adjusting adjustable waste water valve, just can adjust the waste water flow of purifier.
In one embodiment, the adjustable waste valve has a plurality of flow passages corresponding to a plurality of flow steps or flow openings of various sizes corresponding to a plurality of flow steps.
Wherein, as shown in fig. 3, the adjustable waste water valve can have a plurality of flow channels, the plurality of flow channels are arranged side by side, and each flow channel is provided with a corresponding gear switch valve and a corresponding cutoff hole. The waste water flow that every flow channel can pass through is different in size, and the water inlet of every flow channel all is connected with the waste water inlet of waste water branch road, and the delivery port of every flow channel all is connected with the waste water delivery port of waste water branch road. The wastewater flow gears of the water purifier during operation correspond to flow channels of the wastewater valve during operation.
Taking a water purifier with three wastewater flow gears as an example, the adjustable wastewater valve of the water purifier is provided with three wastewater flow channels, each wastewater flow channel is provided with a switch valve and a cutoff hole, and the switch valve is opened, so that the corresponding wastewater flow channel is communicated; and when the switch valve is closed, the corresponding waste water flow channel is closed. If the first flow channel is opened in the running process of the water purifier, the wastewater flow gear of the water purifier is considered to be 1 gear at the moment; starting a second flow channel, and considering that the wastewater flow gear of the water purifier is 2 gears at the moment; and opening the third flow channel, and considering that the wastewater flow gear of the water purifier is 3 gears at the moment. Wherein the size of the flow passage from 1 st gear to 3 rd gear is increased in sequence.
Specifically, when the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is smaller than the lower limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the maximum gear, namely the current wastewater flow gear is 3, keeping the current wastewater flow gear unchanged; if the waste water flow gear is not at the maximum gear at the moment, namely the waste water flow gear is 2 gears or 1 gear at the moment, a waste water flow gear increasing adjustment control instruction is generated, a switch valve of a 3-gear or 2-gear flow channel of the waste water adjusting device is controlled, and the effect of increasing the waste water flow gear by one gear is achieved.
When the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is larger than the upper limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the minimum gear, namely the current wastewater flow gear is 1 gear, keeping the current wastewater flow gear unchanged; if the waste water flow gear is not at the minimum gear at the moment, namely the waste water flow gear is 2 or 3, a waste water flow gear reduction adjusting control instruction is generated, the waste water adjusting device is controlled to open the switch valve of the 1 or 2-gear flow channel and close the switch valve of the 2 or 3-gear flow channel, and the effect of reducing the waste water flow gear by one gear is achieved.
The adjustable waste water valve is also provided with a flushing flow channel and a flushing switch valve arranged on the flushing flow channel, and the flushing flow channel and the waste water flow channel are arranged side by side. And when the flushing switch valve is opened, the water purifier is considered to be in a flushing state at the moment.
As shown in fig. 4 and 5, the adjustable waste valve may also be a waste valve having flow openings of various sizes. Specifically, the larger the size of the waste valve flow opening, the greater the waste flow that can pass. When the waste water valve is used, one of the flow openings is controlled to be in a conducting state by the adjustable waste water valve, and the other flow openings are not in a conducting state. The wastewater flow gear when the water purifier operates corresponds to the flow opening size connected with the water inlet of the wastewater branch when the water purifier operates.
Taking a water purifier with three wastewater flow gears as an example, the adjustable wastewater valve of the water purifier is provided with a wastewater inlet and three wastewater outlets with different sizes of flow openings, the sizes of the three flow openings are sequentially increased according to a preset proportion, and each wastewater outlet is provided with a corresponding wastewater channel and a valve needle. When the purifier is in the running state, one of them flow opening of adjustable waste water valve control is the conducting state, and other flow openings are nonconducting, and the waste water of purifier output all is discharged by the waste water outlet that the flow opening that switches on corresponds. When the flow opening with the minimum opening size is controlled to be in a conducting state by the adjustable waste water valve, the waste water flow gear of the water purifier is considered to be 1 gear at the moment; when the flow opening with the medium size of the opening controlled by the adjustable waste water valve is in a conducting state, the waste water flow gear of the water purifier is considered to be 2 gears; when the flow opening with the largest size of the adjustable waste water valve control opening is in a conduction state, the waste water flow gear of the water purifier is considered to be 3.
Specifically, when the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is smaller than the lower limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the maximum gear, namely the current wastewater flow gear is 3, keeping the current wastewater flow gear unchanged; if the waste water flow gear is not at the maximum gear at this moment, namely when the waste water flow gear is 2 gears or 1 gear at this moment, a waste water flow gear increasing regulation control instruction is generated, the waste water regulation device is controlled to close the flow opening with the current size, the flow opening with the size larger than that of the current flow opening by one step is conducted, and the effect of increasing the waste water flow gear by one gear is achieved by increasing the size of the flow opening.
When the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is larger than the upper limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the minimum gear, namely the current wastewater flow gear is 1 gear, keeping the current wastewater flow gear unchanged; if the waste water flow gear is not at the minimum gear at this moment, namely when the waste water flow gear is 2 gears or 3 gears at this moment, a waste water flow gear reduction control instruction is generated, the waste water adjusting device is controlled to close the flow opening of the current size, the flow opening which is one-step smaller than the current flow opening is conducted, and the effect of reducing the waste water flow gear by one gear is achieved by reducing the size of the flow opening.
In one embodiment, the adjustable waste water valve is further provided with a flushing water outlet, and when the adjustable waste water valve closes all the flow openings with different sizes and the flushing water outlet is communicated, the water purifier is considered to be in a flushing state at the moment.
In one embodiment, the adjustable waste valve may also be a stepless regulating valve. The stepless regulating valve is an electromagnetic valve with a plurality of different flow gears, and belongs to stepless regulation when the flow gears are regulated, namely, the flow can be regulated in any size within a certain range. As shown in fig. 6 and 7, the stepless regulating valve has an upper valve plate and a lower valve plate, and the upper valve plate has a flow passage with a fixed size; the size of the water flowing channel on the lower valve plate is in a changing trend, such as gradually increasing or gradually decreasing. When the waste water treatment device is used, waste water flows through the flowing water channels corresponding to the lower valve plates at different positions by adjusting the positions of the upper valve plate channel and the lower valve plate channel, so that the flow of the waste water is adjusted.
Specifically, when the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is smaller than the lower limit of the designed total purified water quantity range, the current wastewater flow gear of the water purifier is determined, and if the wastewater flow gear is at the maximum gear, the current wastewater flow gear is kept unchanged; if the waste water flow gear is not at the maximum gear, a waste water flow gear increasing adjustment control instruction is generated, the position of the upper valve plate channel of the stepless adjusting valve, which corresponds to the lower valve plate channel, is controlled, the position of the upper valve plate channel is moved to a region with larger waste water flow in the lower valve plate channel, and the effect of increasing the waste water flow gear by one gear is achieved.
When the controller compares the estimated total purified water quantity with the designed total purified water quantity range, when the estimated total purified water quantity is larger than the upper limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the minimum gear, keeping the current wastewater flow gear unchanged; if the waste water flow gear is not at the minimum gear at the moment, a gear adjusting control instruction for reducing the waste water flow is generated, the position of the upper valve plate channel of the stepless adjusting valve, which corresponds to the lower valve plate channel, is controlled, the position of the upper valve plate channel is moved to an area with smaller waste water flow in the lower valve plate channel, and the effect of reducing the waste water flow gear by one gear is achieved.
In one embodiment, as shown in fig. 8, the wastewater flow regulating device 106 comprises: a waste water flow reflux device 201 and a waste water valve 202 arranged on the waste water branch 103;
the backflow device 201 comprises a waste water backflow branch 2011, and a backflow solenoid valve 2012 and a throttling hole 2013 which are arranged on the waste water backflow branch 2011; one end of the wastewater reflux branch 2011 is connected with the wastewater branch 103, and the other end is connected with a water inlet of a booster pump of the water purifier; the waste water flow of the water purifier is adjusted by adjusting the on-off state of the return electromagnetic valve 2012.
The electromagnetic valve is an automatic basic element for controlling the direction of fluid, and the on-off state of the electromagnetic valve can be controlled by controlling the power-on state of the electromagnetic valve.
Wherein, the waste water valve 202 is a semi-open-close valve, when the waste water valve 202 is powered off, the waste water valve 202 is in a semi-open state, and the flow of the passing waste water is small; when the waste valve 202 is energized, the waste valve 202 is in a fully open state and the flow of waste water therethrough is large.
Specifically, the one end and the waste water branch road 103 of waste water backward flow branch road 2011 are connected, and the water inlet of the booster pump of purifier is connected to the other end, set up when backward flow solenoid valve 2012 on waste water backward flow branch road 2011 opens, can be with will originally through waste water branch road 2011 exhaust waste water drainage again, with the water inlet of partial waste water backward flow to the booster pump. Waste water gets into the back from the water inlet of booster pump, continues to flow through booster pump, reverse osmosis membrane filter core and carries out secondary water purification operation, through carrying out iterative water purification operation to waste water, has reduced the waste water flow of purifier, increases the proportion of water purification flow in the raw water flow to reach the effect of adjusting the purifier rate of recovery.
Taking a water purifier containing three wastewater flow gears as an example, the wastewater flow adjusting device of the water purifier comprises: the waste water flow reflux device and a waste water valve arranged on the waste water branch; the reflux device comprises a wastewater reflux branch, and a reflux electromagnetic valve and a throttling hole which are arranged on the wastewater reflux branch. When the water purifier is in an operating state, the waste water flow regulating device can regulate the waste water flow by controlling the on-off state of the reflux electromagnetic valve. Wherein, when the waste water valve outage, backward flow solenoid valve lasts the circular telegram, considers waste water flow gear this moment to be 1 shelves, and the waste water valve is half-open state this moment, and waste water backward flow branch road switches on, and the water inlet of backward flow solenoid valve with a most waste water drainage to booster pump carries out the repeated water purification operation, and the waste water flow at this moment is minimum.
When the waste water valve outage, backward flow solenoid valve intermittent type nature circular telegram (the second number of predetermineeing of circular telegram, the second number of predetermineeing of outage afterwards, this process of repetition), think waste water flow gear this moment be 2 shelves, the waste water valve at this moment still is half-open state, and the backward flow solenoid valve can drain a small part waste water and carry out repeated water purification operation, and the waste water flow of purifier this moment compares in 1 shelves occasionally certain increase.
When the waste water valve and the backflow solenoid valve are all powered off, the waste water flow gear is considered to be 3 gears at the moment, the waste water backflow branch is closed at the moment, the waste water valve is in a half-open state, waste water does not need to be repeatedly purified, the waste water directly flows out of the waste water valve, and the waste water flow of the water purifier is the largest at the moment.
Specifically, when the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is smaller than the lower limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the maximum gear, namely the current wastewater flow gear is 3, keeping the current wastewater flow gear unchanged; and if the waste water flow gear is not at the maximum gear at the moment, namely the waste water flow gear is 2 or 1, generating a waste water flow gear increasing adjustment control instruction. When the waste water flow gear is 2 gears, controlling the reflux electromagnetic valve to keep a power-on state, and adjusting the waste water flow gear to 3 gears; when the waste water flow gear is 1 gear, the reflux electromagnetic valve is controlled to be intermittently electrified, and the waste water flow gear is adjusted to 2 gears. Through the flow that increases the backward flow waste water, reach the effect with waste water flow gear increase gear.
When the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is larger than the upper limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the minimum gear, namely the current wastewater flow gear is 1 gear, keeping the current wastewater flow gear unchanged; and if the waste water flow gear is not at the minimum gear at the moment, namely the waste water flow gear is 2 or 3, generating a waste water flow reduction gear adjusting control instruction. When the waste water flow gear is 2 gears, controlling the return electromagnetic valve to be powered off, and adjusting the waste water flow gear to 1 gear; when the waste water flow gear is 3 gears, the reflux electromagnetic valve is controlled to be intermittently electrified, and the waste water flow gear is adjusted to 2 gears. Through reducing the flow of backward flow waste water, reach the effect that reduces waste water flow gear by a gear.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A water purifier, characterized in that the water purifier comprises:
the detection device is used for acquiring water quality operation parameters of the water purifier;
the controller is connected with the detection device, determines the estimated total purified water quantity of the water purifier according to the water quality operation parameters, compares the estimated total purified water quantity with a designed total purified water quantity range, and controls the wastewater flow regulating device to regulate the wastewater flow of the water purifier when the estimated total purified water quantity is not in the designed total purified water quantity range;
and the waste water flow regulating device is connected with the controller and responds to the control of the controller to regulate the waste water flow of the water purifier.
2. The water purifier according to claim 1, wherein said detection means comprises a flow sensor; the water quality operation parameters comprise purified water flow.
3. The water purifier according to claim 2, wherein said detection means further comprises: a temperature sensor; the water quality operation parameters also comprise water temperature.
4. The water purifier according to claim 1, wherein said wastewater flow regulation device comprises: and the adjustable waste water valve is arranged on the waste water branch, and the flow of the waste water is adjusted through the adjustable waste water valve.
5. The water purifier of claim 4, wherein the adjustable waste valve has a plurality of flow channels corresponding to a plurality of flow stages or flow openings of various sizes corresponding to a plurality of flow stages.
6. The water purifier of claim 5, wherein the adjustable waste water valve further comprises a flush flow channel.
7. The water purifier of claim 6, wherein the adjustable waste valve further comprises a flush water outlet, the flush water outlet being connected to the flush flow channel corresponding to a flush condition of the water purifier.
8. The water purifier of claim 4, wherein the adjustable waste water valve is an infinitely adjustable valve.
9. The water purifier according to claim 1, wherein said wastewater flow regulation device comprises: the waste water flow reflux device and a waste water valve are arranged on the waste water branch;
the backflow device comprises a wastewater backflow branch, and a backflow electromagnetic valve and a throttling hole which are arranged on the wastewater backflow branch; one end of the wastewater backflow branch is connected with the wastewater branch, and the other end of the wastewater backflow branch is connected with a water inlet of a booster pump of the water purifier; and adjusting the waste water flow of the water purifier by adjusting the on-off state of the reflux electromagnetic valve.
10. The water purification machine according to claim 9, wherein said waste water valve is a semi-open valve.
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