A portable water purification device with water quality monitoring

Abstract

The application relates to a portable water source purification device with water quality monitoring, which comprises a purification control assembly and a purification treatment assembly; the purification control assembly comprises a handle, a pressure pump, a water inlet hose and a water outlet hose, one end of the handle is connected with a piston of the pressure pump, the pressure pump is communicated with the water inlet hose and the water outlet hose respectively; the purification treatment assembly comprises a shell, a reverse osmosis membrane and a drain hose, the reverse osmosis membrane is installed in the shell, a gap is arranged between the reverse osmosis membrane and the shell, one end of the water outlet hose away from the pressure pump is communicated with the gap, the reverse osmosis membrane is provided with a central hole, one end of the central hole is sealed, and the other end is communicated with the drain hose. It can be seen that the application is suitable for water source purification operation in the field while meeting the requirement of small size.

Description

Technical Field

[0001] This invention relates to the field of water purification equipment technology, and in particular to a portable water purification device with water quality monitoring. Background Technology

[0002] The demand for portable water purification devices is mainly based on the characteristics of a person's low daily drinking water consumption (about 2L / day) and limited weight capacity. Therefore, the purification device is required to be lightweight, easy to operate, and produce stable water.

[0003] However, most existing water purification devices are large and medium-sized equipment, which are bulky and heavy. They usually require high-pressure pumps, filtration systems and a lot of electricity, making them unsuitable for single-person carrying and field use.

[0004] More importantly, existing portable water purification devices generally suffer from the following technical defects: First, they lack real-time water quality monitoring functions, making it impossible to simultaneously monitor the salinity of influent and effluent water, making it difficult for users to judge the purification effect and drinking water safety; second, they lack intelligent assessment mechanisms for filter cartridge status, making it impossible to predict the efficiency decline trend of reverse osmosis membranes, resulting in inaccurate timing of filter cartridge replacement; third, they lack flow monitoring and analysis functions, making it impossible to detect internal blockages or abnormal flow, affecting the continuous and stable operation of the equipment; and fourth, they lack intelligent reminder systems, preventing users from obtaining timely and accurate guidance for equipment maintenance and cleaning.

[0005] Therefore, there is an urgent need for a lightweight and portable water purification device with water quality monitoring and reminder functions. Summary of the Invention

[0006] To address the problems of large size, heavy weight, unpredictable maintenance, and inability to assess filter status in real time, this application provides a portable water purification device with water quality monitoring capabilities.

[0007] This application provides a portable water purification device with water quality monitoring, the device including a purification control component and a purification treatment component; The purification control component includes a handle, a pressure pump, an inlet hose, and an outlet hose. One end of the handle is connected to the piston of the pressure pump, and the pressure pump is connected to the inlet hose and the outlet hose, respectively. The purification control component is used to drive the water source to the purification treatment component. The purification assembly includes a housing, a reverse osmosis membrane, and a drain hose. The purification assembly is used to convert a water source into drinking water. The reverse osmosis membrane is installed inside the housing and is used to purify the water source. A gap is provided between the reverse osmosis membrane and the housing so that water can enter the reverse osmosis membrane from the housing through the gap. The end of the drain hose away from the pressure pump is connected to the gap. The reverse osmosis membrane has a central axial hole, one end of which is sealed, and the other end is connected to the drain hose.

[0008] By adopting the above technical solution, a manual handle is used to drive a pressure pump. The pressure pump pumps water into the gap between the reverse osmosis membrane and the housing. After being purified by the reverse osmosis membrane, the water enters the central shaft hole and is then discharged through the drain hose, thus obtaining clean drinking water. Therefore, this application demonstrates that drinking water can be obtained simply by operating the handle; it is easy to operate, compact, and convenient for outdoor use.

[0009] In one possible implementation: the handle includes a connecting plate and a handle housing, the connecting plate being mounted inside the handle housing; One end of the connecting plate is provided with a connecting hole, and the connecting plate is connected to the pressure pump piston through the connecting hole. The end of the connecting plate with the connecting hole is a fixed end. A fixing hole is provided on one end of the handle housing near the fixing end, and a screw is provided on the pressure pump, the screw passing through the fixing hole.

[0010] By adopting the above technical solution, the entire handle is hinged to the pressure pump via a screw, and the handle is also connected to the pressure pump via a piston rod on the pressure pump. Therefore, when the movable end of the handle is manually operated, the piston rod will be driven to extend and retract. The movement of the piston rod causes the internal pressure of the piston chamber on the pressure pump to decrease, thereby drawing water into the piston chamber and providing water for the purification treatment components.

[0011] In one possible implementation: a shift pin is further provided on the fixed end of the connecting plate, and a shift hole is provided on the handle housing corresponding to the shift pin, through which the shift pin extends out of the handle housing; By adopting the above technical solution, this application allows users to determine the piston rod extension distance each time the handle is pulled by pressing different positions of the stop pins according to their own capabilities during actual use. The longer the piston rod extends, the greater the force required manually, and the faster the water enters the inlet hose; conversely, the shorter the piston rod extends, the less force required manually, and the slower the water enters the inlet hose. Therefore, this application can be adapted to a wider range of people, facilitating use by different groups in outdoor environments.

[0012] In one possible implementation: a bottom valve filter is provided on the water inlet hose, which is used to initially filter out impurities in the water source.

[0013] By adopting the above technical solution, the bottom valve filter first filters out impurities in the water source, especially large particles, to prevent large particles from entering the reverse osmosis membrane and causing blockage. This ensures the safe and stable operation of the reverse osmosis membrane and extends its service life.

[0014] In one possible implementation: an end cap is provided at one end of the reverse osmosis membrane connected to the drain hose, a pressure relief chamber is provided between the end cap and the reverse osmosis membrane, the pressure relief chamber is in communication with the gap, a pressure relief port is provided on the end cap, the pressure relief port is in communication with the pressure relief chamber, and a pressure relief valve is provided on the pressure relief port.

[0015] By adopting the above technical solution, since the water source has a certain pressure when the pressure pump pumps water into the gap between the reverse osmosis membrane and the shell, and the gap between the reverse osmosis membrane and the shell is relatively small, if the water source pressure is too high, it may prevent the water source from entering the gap, causing the purification device to stop operating. Therefore, it is necessary to set up a pressure relief chamber and a pressure relief port. After the air pressure in the water source enters the pressure relief chamber and reaches a certain pressure, it escapes through the pressure relief valve on the pressure relief port.

[0016] In one possible implementation: an O-ring is provided at the connection between the end cap and the reverse osmosis membrane to prevent the pressure relief chamber from communicating with the central shaft hole and causing water to flow into the central shaft hole.

[0017] By adopting the above technical solution, the connection between the end cap and the reverse osmosis membrane is sealed by an O-ring, preventing the pressure relief chamber and the central shaft hole from connecting and causing water to flow into the central shaft hole, thereby ensuring the cleanliness of the water flowing out of the drain hose.

[0018] In one possible implementation: both the inlet hose and the outlet hose are equipped with check valves to prevent backflow of water when the water source flows through the inlet hose and the outlet hose; By adopting the above technical solution, check valves are installed on both the inlet hose and the outlet hose to prevent backflow of water when it flows through the inlet hose and the outlet hose.

[0019] In one possible implementation: the pressure pump includes a pump body and a pump body cover disposed on the periphery of the pump body, the pump body and the pump body cover being connected by screws; By adopting the above technical solution, the pump body cover is set on the outer periphery of the pump body to protect the pump body from compression, thereby improving the pressure resistance of the pressure pump and making the purification device of this application more suitable for the field environment.

[0020] In one possible implementation: the handle and the housing are symmetrically arranged on two side walls of the pump body cover, and one end of the handle connected to the pressure pump piston is hinged to the pump body cover, so as to reduce the spatial volume of the portable water purification device with water quality monitoring.

[0021] By adopting the above technical solution, the housing and pump cover connect the handle, pressure pump and reverse osmosis membrane into a whole, reducing the space volume of the purification device of this application and making it easy to carry in the field.

[0022] In one possible implementation: the portable water purification device with water quality monitoring is further provided with a purification reminder component, which is used to remind the user to update the reverse osmosis membrane and / or to clean the portable water purification device with water quality monitoring.

[0023] In one possible implementation: the purification reminder component includes a water quality monitoring sensor, a purification treatment control module, and a buzzer; There are two water quality monitoring sensors, both electrically connected to the purification and treatment control module. One water quality monitoring sensor is installed on the inner wall of the pressure pump at the connection between the inlet hose and the pressure pump, and is used to acquire the salinity value of the water source and the water flow rate information when the water source enters the inlet hose, and send the water source salinity value and water flow rate information to the purification and treatment control module. The other water quality monitoring sensor is installed on the central shaft hole at the connection between the drain hose and the central shaft hole, and is used to acquire the drinking water salinity value and drinking water flow rate information when the drinking water flows out of the drain hose, and send the drinking water salinity value and drinking water flow rate information to the purification and treatment control module. The purification and treatment control module is located on the outside of the housing and is electrically connected to the buzzer. The purification and treatment control module is used to analyze and process the water source salinity value, the water source flow information, the drinking water salinity value, and the drinking water flow information to obtain the filter efficiency reduction value and the target flow ratio. Based on the filter efficiency reduction value and the target flow ratio, the module controls the buzzer to emit an audible reminder. The buzzer is located on the outside of the housing and is used to emit an audible alert.

[0024] In one possible implementation: controlling the buzzer to emit an audible alert based on the ratio of the filter cartridge efficiency decrease to the target flow rate is achieved by the purification control module performing the following steps: H1, determine whether the filter element efficiency decrease value is greater than the preset filter element efficiency decrease threshold, and obtain the first judgment result; When the first judgment result is yes, the buzzer is controlled to emit an audible reminder every N1 seconds, with each reminder lasting for N2 seconds, for a total of N3 reminders, to remind the user to replace the reverse osmosis membrane; where N1, N2, and N3 are all positive integers; If the first judgment result is negative, no operation is performed; H2, determine whether the target flow ratio is less than a preset flow threshold, and obtain a second determination result; When the second judgment result is yes, control the buzzer to sound every [time period]. An audio alert is emitted every second, and each alert lasts for [duration]. seconds, total reminders This is to remind the user to clean the portable water purification device with water quality monitoring. If the second judgment result is negative, no operation is performed.

[0025] By adopting the above technical solution, the user can be reminded to replace the reverse osmosis membrane when the filtration efficiency is low due to prolonged use. At the same time, the user can be reminded to clean the portable water purification device with water quality monitoring when it becomes clogged due to prolonged use.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. This application allows for manual operation of a handle to drive a pressure pump. The pressure pump draws water into the gap between the reverse osmosis membrane and the housing. After purification by the reverse osmosis membrane, the water enters the central shaft hole and is then discharged through a drain hose, thus yielding clean drinking water. Therefore, this application provides drinking water simply by operating the handle, is easy to operate, and is compact, making it convenient for field use. 2. This application connects the handle, pressure pump and reverse osmosis membrane into a whole through the shell and pump body cover, reducing the space volume of the purification device of this application and making it more convenient to carry and use in the field; 3. Intelligent monitoring advantages: Through a dual sensor system installed at the inlet and outlet, real-time synchronous monitoring of water source salinity, drinking water salinity, water source flow rate, and drinking water flow rate is achieved, providing users with accurate water quality and flow information to ensure drinking water safety; 4. Predictive maintenance advantages: By adopting a filter cartridge efficiency degradation calculation model and through mathematical analysis of the salinity values ​​of the source water and drinking water, the filter cartridge efficiency degradation value is accurately calculated, enabling predictive assessment of the reverse osmosis membrane status and guiding users to replace the filter cartridge in a timely manner, avoiding resource waste caused by overuse or premature replacement. 5. Advantages of intelligent flow analysis: By adopting a flow calculation model or a smoothed flow calculation model, and through weighted fusion or logarithmic ratio analysis of historical and recent data, the target flow ratio is accurately calculated, and internal blockages or flow anomalies are detected in a timely manner, guiding users to perform equipment cleaning and maintenance. 6. Intelligent reminder advantages: The reminder system, composed of a purification control module and a buzzer, automatically issues differentiated sound reminders based on the judgment results of the filter efficiency reduction value and the target flow ratio, providing users with precise maintenance guidance and realizing intelligent management of the equipment; Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a portable water purification device with water quality monitoring according to an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the handle structure of a portable water purification device with water quality monitoring according to an embodiment of this application.

[0029] Figure 3 This is a schematic diagram showing the connection between the handle and the pressure pump of a portable water purification device with water quality monitoring according to an embodiment of this application.

[0030] Figure 4 This is a schematic diagram of the reverse osmosis membrane structure of a portable water purification device with water quality monitoring according to an embodiment of this application.

[0031] Figure 5 This is a schematic diagram illustrating the operation of a portable water purification device with water quality monitoring according to an embodiment of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Handle; 11. Connecting plate; 111. Connecting hole; 12. Handle housing; 121. Fixing hole; 122. Gear hole; 2. Pressure pump; 22. Pump body cover; 221. Movable hole; 3. Inlet hose; 31. Bottom valve filter; 4. Outlet hose; 5. Housing; 6. Reverse osmosis membrane; 61. Central shaft hole; 62. End cap; 63. Pressure relief chamber; 64. Pressure relief valve; 7. Drain hose; 8. Elastic rope; 9. Hook. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] The following is in conjunction with the instruction manual appendix. Figure 1-5 The embodiments of this application will be described in further detail.

[0035] This application provides a portable water purification device with water quality monitoring. The device includes a purification control component and a purification treatment component. The purification control component and the purification treatment component are detachably connected. The purification control component is manually controlled, and the purification treatment component is driven by the purification control component to convert the water source into drinking water for human consumption.

[0036] Specifically, the purification control assembly includes a handle 1, a pressure pump 2, an inlet hose 3, and an outlet hose 4. One end of the handle 1 is connected to the piston of the pressure pump 2, and the other end of the handle 1 is a movable end for manual operation. The pressure pump 2 is connected to both the inlet hose 3 and the outlet hose 4. The inlet hose 3 is used to input water, and a bottom valve filter 31 is installed at the water input end of the inlet hose 3 to filter out large particulate impurities. The outlet hose 4 is used to output water pressurized by the pressure pump 2. Both the inlet hose 3 and the outlet hose 4 are equipped with check valves. The check valves used here are commonly available on the market and are used to prevent backflow of water when flowing through the inlet hose 3 and the outlet hose 4.

[0037] The handle 1 includes a connecting plate 11 and a handle housing 12, with the connecting plate 11 installed inside the handle housing 12.

[0038] The end of the connecting plate 11 connected to the pressure pump 2 is called the fixed end. A connecting hole 111 is provided on this fixed end. The pressure pump 2 has a piston rod, one end of which passes through the connecting hole 111 and has a protrusion. The protrusion abuts against the side wall of the connecting hole 111, so that pulling the movable end of the connecting plate 11 causes the piston rod to extend and retract. On the handle housing 12, a fixing hole 121 is provided on the end near the fixed end of the connecting plate 11. A screw is provided on the pressure pump 2, passing through the fixing hole 121 and connected to a nut via threads, so that the entire handle 1 is hinged to the pressure pump 2 via the screw. It should be noted that multiple fixing holes 121 can be provided, corresponding to multiple screws on the pressure pump 2. These multiple screws pass through multiple fixing holes 121 one by one, thereby ensuring the connection stability between the handle housing 12 and the pressure pump 2 and reducing the probability of the handle housing 12 and the pressure pump 2 detaching from each other.

[0039] In addition, a stop pin is provided on the fixed end of the connecting plate 11. The stop pin consists of three elastic screws, which together form two adjustable stops. Specifically, a stop hole 122 is provided on the handle housing 12 corresponding to the stop pin, and the stop pin extends out of the handle housing 12 through the stop hole 122. In actual use, the user presses the stop pin at different positions according to their own ability to determine the piston rod extension distance that can be driven each time the handle 1 is pulled. The longer the piston rod extension distance, the greater the force required by the user, and the faster the water enters the inlet hose 3; conversely, the shorter the piston rod extension distance, the less force required by the user, and the slower the water enters the inlet hose 3.

[0040] The pressure pump 2 also includes a pump body and a pump body cover 22 disposed on the periphery of the pump body. The pump body and the pump body cover 22 are connected by screws, and the pump body and the pump body cover 22 can also be integrally formed. A piston rod is disposed on the pump body, and the piston rod is a cylindrical plunger. A high-pressure sealing ring is provided between the plunger and the piston chamber on the pressure pump 2 to ensure the sealing performance of the piston chamber. In addition, the aforementioned screw is disposed on the pump body cover 22. Specifically, a movable hole 221, identical to the fixed hole 121, is opened at one end of the pump body cover 22. The screw passes through the movable hole 221, and both ends of the screw pass through the fixed holes 121 located on both sides of the pump body cover 22. After extending out of the fixed holes 121, they are respectively connected to nuts. See details. Figure 3 .

[0041] In a specific example, the pressure pump 2 mentioned above can be provided in two sets, with a rotating shaft between the two sets of pressure pump 2. The handle 1 is hinged to the rotating shaft, and the piston rods of the two sets of pressure pump 2 are respectively connected to the handles 1 on both sides of the rotating shaft. A sliding sleeve is provided below the piston rod of the pressure pump 2, and the handle 1 passes through the sliding sleeve and is movably connected to the piston rod, so as to realize the linkage of the two sets of pressure pump 2, thereby realizing the simultaneous operation of the two sets of pressure pump 2 and improving the efficiency of converting water source into drinking water.

[0042] The purification assembly includes a housing 5, a reverse osmosis membrane 6, and a drain hose 7. The reverse osmosis membrane 6 is installed inside the housing 5 and has a cylindrical structure. An annular gap is reserved between the reverse osmosis membrane 6 and the housing 5. When purifying fresh water, this gap is connected to the outlet hose 4. The reverse osmosis membrane 6 is hollow, and this hollow space is called the central axial hole 61. One end of the central axial hole 61 is sealed, and the other end extends to become a central tube. An end cap 62 is provided at the end of the central tube away from the reverse osmosis membrane 6. A clean water inlet is opened on the end cap 62 corresponding to the location of the central tube, and the clean water inlet is connected to the drain hose 7.

[0043] For example, the reverse osmosis membrane 6 is detachably installed inside the housing 5.

[0044] A pressure relief chamber 63 is also provided between the end cap 62 and the reverse osmosis membrane 6. The pressure relief chamber 63 communicates with the aforementioned annular gap. A pressure relief port is provided on the side wall of the end cap 62, and a pressure relief valve 64 is provided on the pressure relief port. It should be noted that the pressure relief chamber 63 is not connected to the central shaft hole 61. Furthermore, in order to ensure the airtightness of the central shaft hole 61, an O-ring seal is provided at the connection between the end cap 62 and the housing 5. The O-ring seal gradually thickens along the direction towards the end cap 62 to improve the sealing effect of the central shaft hole 61.

[0045] In this example, a hole is provided on the side wall of the housing 5. One end of the elastic rope 8 passes through the hole and is fixed to the housing 5. The other end of the elastic rope 8 is provided with a hook 9. The hook 9 can be worn on the arm or other field equipment to prevent the purification device from falling off.

[0046] In summary, the working principle of the portable water purification device with water quality monitoring of this application is as follows: One end of the inlet hose 3 is placed into the water source, and one end of the outlet hose 4 is connected to the gap between the reverse osmosis membrane 6 and the housing 5. Then, the handle 1 is pulled back and forth. During the back-and-forth movement of the handle 1, the piston rod of the pressure pump 2 is driven to extend and retract, thereby pumping the water source into the piston chamber of the pressure pump 2. The water source is then guided from the piston chamber through the outlet hose 4 into the gap between the reverse osmosis membrane 6 and the housing 5. After being treated by the reverse osmosis membrane 6, the water molecules in the water source axially permeate through the reverse osmosis membrane 6, enter the central axial hole 61, converge, pass through the central tube, and are discharged from the clean water outlet. The movement path of water molecules in the reverse osmosis membrane 6 is described in [reference needed]. Figure 4 As shown by the arrow, complete the manual water purification operation.

[0047] It should be noted that when operating the water purification device, if... Figure 5 As shown, place one hand under the housing 5 and the other hand on the movable end of the handle 1, and crank the handle 1 back and forth at a speed of 40 times per minute. If water does not initially enter the inlet hose 3, place the water purifier near the water surface and quickly pump by cranking the handle 1. Once water enters the water purifier, reduce the speed to 40 times per minute. Once water is observed dripping from the drain hose 7, continue pumping for at least 80 times, while simultaneously emptying the previously accumulated water. Then, insert the drain hose 7 into a water storage container or drink directly from it. Continue pumping until the desired amount of drinking water is obtained.

[0048] In a specific example, the water purification device described above can produce approximately 36 liters of drinking water per day.

[0049] In this example, the portable water purification device with water quality monitoring is also equipped with a purification reminder component, which is used to remind the user to update the reverse osmosis membrane and / or to clean the portable water purification device with water quality monitoring.

[0050] In this example, the purification alert component includes a water quality monitoring sensor, a purification treatment control module, and a buzzer; It should be noted that the water quality monitoring sensor is a known sensor used in environmental monitoring, industrial water treatment, agricultural irrigation and other fields. This sensor integrates the functions of a salinity sensor (such as a TDS sensor) and a flow sensor, and can simultaneously detect salinity and flow.

[0051] It should be noted that both the water quality monitoring sensor and the buzzer are low-power and can be powered by button batteries for extended periods.

[0052] It should be noted that the water quality monitoring sensor adopts a streamlined sensor so that when the portable water purification device with water quality monitoring is purifying the water source, the pipes will not be blocked as much as possible when the water source enters the inlet hose 3 and the drinking water flows out of the drain hose 7.

[0053] It should be noted that the purification control module generally uses known low-power devices such as Arduino, Raspberry Pi, and ESP32, which can be powered by AA batteries or other batteries for a long time.

[0054] There are two water quality monitoring sensors, both electrically connected to the purification and treatment control module. One water quality monitoring sensor is installed on the inner wall of the pressure pump 2 at the connection between the inlet hose 3 and the pressure pump 2. It is used to acquire the salinity value of the water source and the water flow rate when the water source enters the inlet hose 3, and sends the water source salinity value and water flow rate information to the purification and treatment control module. The other water quality monitoring sensor is installed on the central shaft hole 61 at the connection between the drain hose 7 and the central shaft hole 61. It is used to acquire the salinity value of the drinking water and the drinking water flow rate when the drinking water flows out of the drain hose 7, and sends the drinking water salinity value and drinking water flow rate information to the purification and treatment control module. It should be noted that one water quality monitoring sensor is installed on the inner wall of the pressure pump 2 at the connection between the inlet hose 3 and the pressure pump 2, and the other water quality monitoring sensor is installed on the central shaft hole 61 at the connection between the drain hose 7 and the central shaft hole 61. The diameter of the inner hole of the pressure pump 2 at the connection between the inlet hose 3 and the pressure pump 2 is larger than the diameter of the inlet hose 3, and the diameter of the inner hole of the central shaft hole 61 at the connection between the drain hose 7 and the central shaft hole 61 is larger than the diameter of the drain hose 7, so that the water quality monitoring sensors will not block the pipeline when the water source enters the pressure pump 2 and the drinking water flows out from the central shaft hole 61.

[0055] The purification and treatment control module is located on the outside of the housing 5. The purification and treatment control module is electrically connected to the buzzer. The purification and treatment control module is used to analyze and process the water source salinity value, water source flow information, drinking water salinity value and drinking water flow information to obtain the filter cartridge efficiency reduction value and the target flow ratio. Based on the filter cartridge efficiency reduction value and the target flow ratio, the buzzer is controlled to emit an audible reminder. A buzzer is located on the outside of housing 5 and is used to provide an audible alert.

[0056] It should be noted that the above-mentioned electrical connection can be a wired connection, or a wireless connection, Bluetooth connection, etc. The specific method is not limited in the embodiments of the present invention.

[0057] For example, N1, N2, and N3 are 2, 4, and 6 respectively, and N1, N2, and N3 are not equal.

[0058] In this example, the buzzer is activated to issue an audible alert based on the ratio of filter efficiency reduction to the target flow rate. This is achieved by the purification control module executing the following steps: H1 determines whether the filter efficiency decrease value is greater than the preset filter efficiency decrease threshold, and obtains the first judgment result; When the first judgment result is yes, the buzzer is controlled to sound an alarm every N1 seconds, with each alarm lasting for N2 seconds, for a total of N3 alarms, to remind the user to replace the reverse osmosis membrane 6; N1, N2 and N3 are all positive integers; If the first judgment result is negative, no operation is performed; H2 determines whether the target flow ratio is less than the preset flow threshold and obtains the second judgment result; When the second judgment result is yes, control the buzzer to sound every [time period]. An audio alert is emitted every second, and each alert lasts for [duration]. seconds, total reminders This is used to remind users to clean portable water purification devices with water quality monitoring capabilities; If the second judgment result is negative, no operation is performed.

[0059] It should be noted that the above solution can remind users to replace the reverse osmosis membrane 6 when it has been used for too long and its filtration efficiency is low. At the same time, it can remind users to clean the portable water purification device with water quality monitoring when it is clogged.

[0060] It should be noted that the preset filter efficiency reduction threshold and the preset flow rate threshold can be set by the user or obtained based on historical data, and this embodiment of the invention does not limit them.

[0061] For example, the preset filter efficiency reduction threshold is 0.5, and the preset flow rate threshold is 0.4.

[0062] In this example, the purification treatment control module is used to analyze and process the water source salinity value, water source flow information, drinking water salinity value, and drinking water flow information to obtain the filter cartridge efficiency reduction value and the target flow ratio. This is obtained by the purification treatment control module performing the following steps. S1, analyzes and processes the salinity values ​​of the source water and drinking water to obtain the filter cartridge efficiency reduction value; S2 analyzes and processes the water source flow information and drinking water flow information to obtain the target flow ratio.

[0063] In this example, the salinity values ​​of the source water and drinking water are analyzed to obtain the filter cartridge efficiency reduction value, including: Using a filter cartridge efficiency reduction calculation model, the salinity values ​​of the source water and drinking water were analyzed and processed to obtain the filter cartridge efficiency reduction value; The calculation model for filter efficiency reduction is as follows: ; In the formula, This represents the decrease in filter efficiency. This represents the theoretical filter efficiency value for reverse osmosis membrane 6. This refers to the salinity value of the water source. This refers to the salinity value of drinking water. As the first weight parameter, It is the first constant coefficient.

[0064] It should be noted that the theoretical filter efficiency value of reverse osmosis membrane 6 is a parameter that has been set at the factory and can be obtained from the manufacturer's instruction manual. It should be noted that the first weight parameter and the first constant coefficient can be set by the user or obtained from historical data, and the embodiments of the present invention do not limit them.

[0065] For example, The value range is [0.9, 1.1]. The value range is [-0.1, 0.1]; By setting the first weighting parameter, the calculation results of efficiency decline can be dynamically adjusted when salinity changes significantly, providing a more accurate value for filter cartridge efficiency decline.

[0066] By setting the first constant coefficient, it can play a corrective and compensatory role, and is used to balance the calculation deviation between salinity difference and theoretical efficiency.

[0067] It should be noted that the filter cartridge efficiency reduction calculation model achieves fine-tuning of reverse osmosis membrane efficiency assessment by introducing a first weight parameter (value range [0.9, 1.1]) and a first constant coefficient (value range [-0.1, 0.1]). The fine-tuning range of the first weight parameter ensures dynamic response without excessive fluctuations when salinity changes drastically, while the small correction value of the first constant coefficient effectively compensates for the systematic deviation between theoretical calculations and actual operation. This allows the model to maintain sensitivity to salinity changes while possessing good stability and accuracy, providing a reliable quantitative basis for predictive maintenance, dynamic parameter adjustment, and water quality safety assurance of water purification systems.

[0068] In this example, the source water flow information and drinking water flow information are analyzed and processed to obtain the target flow ratio, including: By using a flow calculation model, the water source flow information and drinking water flow information are analyzed and processed to obtain the target flow ratio; The flow calculation model is as follows: ; ; ; In the formula, The target flow ratio, For drinking water flow information, For water source flow information, and These are the i-th and j-th drinking water flow values ​​in the drinking water flow information, respectively. and Let represent the i-th and j-th water source flow values ​​in the water source flow information, respectively, and N represent the number of drinking water flow values ​​in the drinking water flow information, where the number of drinking water flow values ​​is equal to the number of water source flow values ​​in the water source flow information. and These are the second and third weighting parameters, respectively.

[0069] It should be noted that the second and third weight parameters can be set by the user or obtained from historical data, and this embodiment of the invention does not limit them.

[0070] It should be noted that the drinking water flow values ​​in the drinking water flow information and the water source flow values ​​in the water source flow information are both arranged in reverse chronological order. and compared to, Closer to the present moment, That is The drinking water flow rate value obtained at the time preceding the corresponding time.

[0071] It should be noted that the flow calculation model achieves a comprehensive assessment of the system's operating status by simultaneously considering the flow ratio of all historical data (N data points) and recent key data (M data points, M≤N). The model retains the guiding value of long-term trends while highlighting the real-time response capability to short-term fluctuations. Through a weighted averaging mechanism, it effectively offsets the interference of single-point abnormal data, ensuring the robustness and continuity of flow monitoring. This provides a stable and reliable decision-making basis for flow control, load balancing, and anomaly detection in water purification systems.

[0072] It should be noted that by setting the second and third weighting parameters, both sensitivity to overall flow trends and the impact of short-term flow fluctuations are preserved, thereby improving the sensitivity and robustness of flow monitoring. Furthermore, by combining a weighted average of long-term and short-term data, abnormal fluctuations at individual data points can be offset to some extent. For example, if the water flow data at a certain moment is abnormal due to sensor malfunction or external factors, this abnormal value will be corrected by other normal values ​​in the short-term data portion, thus preventing the system from overreacting to a single abnormal data point and ensuring the stability of the flow ratio.

[0073] It should be noted that the second weight parameter is limited to the range [0, 0.4], and the third weight parameter is correspondingly limited to the range [0.6, 1]. This asymmetric weight allocation design reflects a "recent priority" control strategy: a smaller second weight parameter value prevents excessive influence from historical data, avoiding slow system response to changes in the current state; a larger third weight parameter value ensures the dominance of recent data, improving the system's sensitivity to real-time operating condition changes; and simultaneously... The constraints ensure the mathematical rigor of the weight allocation, enabling the model to have both the reference value of historical experience and the ability to quickly adapt to the current operating state, achieving an optimal balance between stability and responsiveness.

[0074] For example, the second weight parameter is 0.3 and the third weight parameter is 0.7. With this setting, the 30% weight of historical data ensures the continuity of system operation and the inheritance of experience, avoiding system oscillations caused by short-term anomalies; the 70% weight of recent data ensures the system's timely response and precise control to changes in current operating conditions. This 3:7 weight allocation reflects both the stability requirements of the water purification system as a continuous process and the technical requirements of modern intelligent equipment for real-time performance and adaptability. This enables the flow control system to quickly respond to load changes, water quality fluctuations, and equipment status changes while maintaining overall operational stability, thereby achieving the dual goals of optimizing system efficiency and minimizing operating costs.

[0075] In an optional embodiment, the source water flow information and drinking water flow information are analyzed and processed to obtain a target flow ratio, including: By using a smoothed flow calculation model, the water source flow information and drinking water flow information are analyzed and processed to obtain the target flow ratio; The smooth flow calculation model is as follows: ; In the formula, The target flow ratio, For drinking water flow information, For water source flow information, and These are the i-th and j-th drinking water flow values ​​in the drinking water flow information, respectively. and Let represent the i-th and j-th water source flow values ​​in the water source flow information, respectively, and N represent the number of drinking water flow values ​​in the drinking water flow information, where the number of drinking water flow values ​​is equal to the number of water source flow values ​​in the water source flow information. This is the baseline correction value.

[0076] It should be noted that the benchmark correction value can be set by the user or obtained from historical data. Specifically, this embodiment of the invention does not limit the specific value.

[0077] It should be noted that the smoothed flow calculation model achieves a high degree of stability in the flow monitoring of the water purification system by leveraging the natural smoothness of the logarithmic function. The model effectively compresses the impact of extreme flow fluctuations on system judgment by using a logarithmic ratio structure. By calculating the logarithmic ratio of recent data (M points) and long-term data (N points), it maintains a sensitive response to the current operating status while avoiding system oscillations caused by short-term abnormal data. This ensures that the target flow ratio maintains high computational stability and predictive reliability in complex and ever-changing environments, providing strong mathematical support and an intelligent control foundation for the long-term continuous operation of the water purification device.

[0078] It should be noted that the baseline correction value ranges from [0.02, 0.08]. This parameter can provide fine compensation and systematic deviation correction for the calculation results of the smooth flow calculation model: a smaller positive value range ensures the mildness and non-intrusiveness of the correction effect, avoiding the destruction of the mathematical properties of the model itself by excessive correction; when the baseline correction value is 0.02-0.04, it is suitable for stable systems with high data quality, and can provide a small amount of baseline correction; when the baseline correction value is 0.05-0.08, it is suitable for situations with complex operating environments and systematic measurement deviations, and can effectively compensate for calculation deviations caused by actual engineering factors such as sensor drift and pipeline losses, ensuring the long-term accuracy and engineering practicality of flow ratio calculation.

[0079] It should be noted that the smoothed flow calculation model differs from the previous flow calculation model in its mathematical essence and application focus: the former adopts a linear weighted fusion strategy, which directly combines historical and recent data through the weight allocation of the second and third weight parameters. It features simple calculation, rapid response, and intuitive weight relationships, making it suitable for application scenarios that require rapid response and manual intervention. The latter adopts a nonlinear logarithmic ratio strategy, which achieves natural data stabilization through the inherent smoothing mechanism of the logarithmic function. It features strong anti-interference ability, good long-term stability, and high mathematical robustness, making it more suitable for water purification devices that operate continuously for a long time without frequent manual adjustments.

[0080] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the foregoing disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A portable water purification device with water quality monitoring, characterized in that, Includes purification control components and purification treatment components; The purification control component includes a handle, a pressure pump, an inlet hose, and an outlet hose. One end of the handle is connected to the piston of the pressure pump, and the pressure pump is connected to the inlet hose and the outlet hose, respectively. The purification control component is used to drive the water source to the purification treatment component. The purification assembly includes a housing, a reverse osmosis membrane, and a drain hose. The reverse osmosis membrane is installed inside the housing, and a gap is provided between the reverse osmosis membrane and the housing. The end of the drain hose away from the pressure pump is connected to the gap. The reverse osmosis membrane has a central hole, one end of which is sealed, and the other end is connected to the drain hose. The purification assembly is used to convert water sources into drinking water.

2. The portable water purification device with water quality monitoring according to claim 1, characterized in that, The handle includes a connecting plate and a handle housing, with the connecting plate installed inside the handle housing. One end of the connecting plate is provided with a connecting hole, and the connecting plate is connected to the pressure pump piston through the connecting hole. The end of the connecting plate with the connecting hole is a fixed end. A fixing hole is provided on one end of the handle housing near the fixing end, and a screw is provided on the pressure pump, the screw passing through the fixing hole.

3. The portable water purification device with water quality monitoring according to claim 2, characterized in that, A shift pin is also provided on the fixed end of the connecting plate, and a shift hole is provided on the handle housing corresponding to the shift pin, through which the shift pin extends out of the handle housing.

4. The portable water purification device with water quality monitoring according to claim 1, characterized in that, The water inlet hose is equipped with a bottom valve filter, which is used to initially filter out impurities in the water source.

5. The portable water purification device with water quality monitoring according to claim 1, characterized in that, The reverse osmosis membrane is connected to a drain hose at one end with an end cap. A pressure relief chamber is provided between the end cap and the reverse osmosis membrane. The pressure relief chamber is in communication with the gap. A pressure relief port is provided on the end cap and is in communication with the pressure relief chamber. A pressure relief valve is provided on the pressure relief port.

6. The portable water purification device with water quality monitoring according to claim 5, characterized in that, An O-ring is provided at the connection between the end cap and the reverse osmosis membrane to prevent water from flowing into the central shaft hole due to the connection between the pressure relief chamber and the central shaft hole.

7. The portable water purification device with water quality monitoring according to claim 1, characterized in that, Both the inlet hose and the outlet hose are equipped with check valves to prevent backflow of water when it flows through them.

8. The portable water purification device with water quality monitoring according to claim 1, characterized in that, The portable water purification device with water quality monitoring is also equipped with a purification reminder component, which is used to remind the user to update the reverse osmosis membrane and / or to clean the portable water purification device with water quality monitoring.

9. The portable water purification device with water quality monitoring according to claim 8, characterized in that, The purification reminder component includes a water quality monitoring sensor, a purification treatment control module, and a buzzer. There are two water quality monitoring sensors, both electrically connected to the purification and treatment control module. One water quality monitoring sensor is installed on the inner wall of the pressure pump at the connection between the inlet hose and the pressure pump, and is used to acquire the salinity value of the water source and the water flow rate information when the water source enters the inlet hose, and send the water source salinity value and water flow rate information to the purification and treatment control module. The other water quality monitoring sensor is installed on the central shaft hole at the connection between the drain hose and the central shaft hole, and is used to acquire the drinking water salinity value and drinking water flow rate information when the drinking water flows out of the drain hose, and send the drinking water salinity value and drinking water flow rate information to the purification and treatment control module. The purification and treatment control module is located on the outside of the housing and is electrically connected to the buzzer. The purification and treatment control module is used to analyze and process the water source salinity value, the water source flow information, the drinking water salinity value, and the drinking water flow information to obtain the filter efficiency reduction value and the target flow ratio. Based on the filter efficiency reduction value and the target flow ratio, the module controls the buzzer to emit an audible reminder. The buzzer is located on the outside of the housing and is used to emit an audible alert.

10. The portable water purification device with water quality monitoring according to claim 9, characterized in that, The step of controlling the buzzer to emit an audible alert based on the ratio of the filter efficiency decrease to the target flow rate is obtained by the purification control module performing the following steps: H1, determine whether the filter element efficiency decrease value is greater than the preset filter element efficiency decrease threshold, and obtain the first judgment result; When the first judgment result is yes, the buzzer is controlled to emit an audible reminder every N1 seconds, with each reminder lasting for N2 seconds, for a total of N3 reminders, to remind the user to replace the reverse osmosis membrane; where N1, N2, and N3 are all positive integers; If the first judgment result is negative, no operation is performed; H2, determine whether the target flow ratio is less than a preset flow threshold, and obtain a second determination result; When the second judgment result is yes, control the buzzer to sound every [time period]. An audio alert is emitted every second, and each alert lasts for [duration]. seconds, total reminders This is to remind the user to clean the portable water purification device with water quality monitoring. If the second judgment result is negative, no operation is performed.

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