Intelligent direct drinking machine for comprehensive multi-stage water purification treatment

Abstract

The intelligent direct drinking machine comprises a first purification device, a second purification device, a pressure barrel and a water tank, a water inlet pipe is arranged on the first purification device, and a water outlet pipe and a heating assembly are arranged at the bottom of the water tank; a drain valve and a delivery pump are arranged on the water outlet pipe; a water return pipe is arranged at the water using end; a water return valve is arranged on the water return pipe; and a high-water-level probe and a low-water-level probe are respectively arranged at the top and the bottom of the water tank. Unused purified water in the water return pipe flows back to the water tank, reheating is conducted on the refluxed purified water through the heating assembly, and the unused purified water flows back to the water tank regularly, so that it is ensured that the water temperature of the water using end is consistent with the temperature of the purified water in the water tank all the time, energy consumption is effectively reduced, cold water does not need to be supplemented for heating, and energy consumption is reduced. And compared with the prior art, the water path retention problem is effectively solved, the energy consumption can be effectively reduced, and the temperature control precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water purifiers, and in particular to an intelligent direct drinking machine with comprehensive multi-stage water purification treatment. Background Art

[0002] Direct drinking machines, also called water purifiers and water purifiers, are water treatment equipment that deeply filters and purifies water according to water usage requirements. In order to avoid frequent opening of the safety valve and frequent water replenishment of the automatic water replenishment valve, a pressure barrel is generally installed in the direct drinking machine to balance the water volume and pressure. Direct drinking machines in the prior art can provide hot water and warm water, but hot water and warm water share the same pipeline, and hot water and warm water cannot be discharged at the same time, which may not meet drinking water needs. At the same time, the pressure barrel in the direct drinking machine has the problem of loss of pressure after long-term use or damage to the pressure barrel due to excessive pressure.

[0003] In the prior art, for example, a Chinese patent (authorization announcement number CN209518754U) discloses a water-discharging drinking fountain, which includes a heat exchanger and a hot tank, and the heat exchanger is composed of a cooling water pipeline and a hot water pipeline. By opening the water inlet valve, normal temperature water or tap water enters the cooling water pipeline from the normal temperature water inlet of the heat exchanger, and is discharged from the normal temperature water outlet, and then flows into the hot tank to be heated to high-temperature hot water, and then the hot water is discharged through the outlet. One part of the hot water passes through the first hot water pipeline, and the hot water outlet valve is opened, and the hot water is discharged from the hot water outlet nozzle; the other part of the hot water passes through the second hot water pipeline and flows into the hot water pipeline of the heat exchanger. During the heat exchange process, the hot water exchanges heat with the normal temperature water in the cooling water pipeline, is converted into warm water, and is finally discharged through the drain and enters the warm water pipeline. Open the warm water outlet valve, and the warm water is discharged through the warm water outlet nozzle. This patent can provide hot water and warm water at the same time to meet the user's drinking water needs, with a simple structure and low cost.

[0004] However, the above prior art still has the following problems: 1. Due to the setting of hot water and warm water pipes, a certain amount of water may be retained in the pipes. If this water is not discharged in time, the heating device may continue to heat the retained water, causing energy waste or excessive water temperature.

[0005] 2. During the heat exchange process, the water flow of the cooling water pipeline and the hot water pipeline must be matched to ensure the heat exchange efficiency. If the setting is improper, the heat exchange effect may be unstable, resulting in large fluctuations in the output water temperature and affecting the temperature control accuracy. Summary of the invention

[0006] The purpose of the present invention is to address the above-mentioned problems and provide an intelligent direct drinking machine with comprehensive multi-stage water purification treatment. The machine returns the unused clean water in the return pipe to the water tank, reheats the returned clean water through a heating component, and regularly returns the unused clean water to the water tank to ensure that the water temperature at the water end is always consistent with the clean water temperature in the water tank, and effectively reduces energy consumption. There is no need to add cold water for heating, thereby achieving energy-saving effects. Compared with the prior art, the present invention effectively solves the problem of water retention. It can effectively reduce energy consumption and improve temperature control accuracy.

[0007] To solve the problems of the prior art, the present invention provides an intelligent direct drinking machine with comprehensive multi-stage water purification treatment, comprising a first purification device, a second purification device, a pressure barrel and a water tank, wherein the first purification device is provided with a water inlet pipe connected to an external water source, and a first pipeline is connected between the first purification device and the second purification device; a clean water pipe is connected between the second purification device and the water tank, and a second pipeline is connected between the pressure barrel and the clean water pipe; a water outlet pipe and a heating component for heating the clean water inside the water tank are provided at the bottom of the water tank; a drain valve for controlling the opening and closing of the water outlet pipe and a delivery pump for delivering the clean water from the water tank to each water-using end are provided on the water outlet pipe; a return water pipe connected to the water tank is provided at the water-using end, and a return water valve for controlling the opening and closing of the return water pipe is provided on the return water pipe; a high water level probe and a low water level probe for detecting the water level are respectively provided at the top and bottom of the water tank.

[0008] Preferably, the second purification device is also provided with a concentrated water pipe for discharging sewage; an airbag is provided in the pressure barrel, the airbag separates the pressure barrel into a water storage chamber and a pressure chamber, the water storage chamber is connected to the clean water pipe through a second pipe, and a first installation port connected to the airbag is provided on the bottom of the pressure barrel, and a filling component for inflating the airbag is provided on the first installation port.

[0009] Preferably, the filling assembly includes a wastewater barrel, a first drain pipe, a torque converter and an air pump, the wastewater barrel is arranged beside the pressure barrel, the first drain pipe is arranged at the bottom of the wastewater barrel, the air pump is arranged on the first mounting port, the torque converter is arranged on the first drain pipe, the torque converter is driven by the flow of wastewater, and the air pump is connected to the torque converter by transmission.

[0010] Preferably, the bottom of the pressure barrel is also provided with a second mounting port for relieving pressure in the pressure chamber, the first mounting port and the second mounting port are both provided with a first solenoid valve, and the second mounting port is also provided with a pressure sensor for detecting the gas pressure in the pressure barrel.

[0011] Preferably, a wastewater outlet for collecting wastewater is provided at the top of the wastewater bucket, and an annular cylinder connected to the wastewater outlet is provided in the wastewater bucket. The annular cylinder divides the wastewater pool into a water storage chamber located in the center of the wastewater bucket and a drainage chamber sleeved on the outside of the water storage chamber. A plurality of overflow holes evenly distributed around the axis of the annular cylinder are provided on the circumferential side of the top of the annular cylinder, a first drainage pipe is provided at the bottom of the water storage chamber, and a second drainage pipe is provided at the bottom of the drainage chamber.

[0012] Preferably, the concentrate pipe is provided with a first branch connected to the wastewater outlet and a second branch for directly discharging wastewater, a distribution valve is provided on the concentrate pipe between the first branch and the second branch, and a second solenoid valve is provided on the first branch.

[0013] Preferably, the second purification device includes a plurality of RO membrane filter elements connected in parallel, each RO membrane filter element is provided with a booster pump, a first connecting pipe connected to the clean water pipe and a second connecting pipe connected to the concentrated water pipe are provided at the bottom of each RO membrane filter element, each first connecting pipe is provided with a first one-way valve, each second connecting pipe is provided with a wastewater proportioner, and a flushing valve for cleaning the second purification device is provided on the concentrated water pipe.

[0014] Preferably, a third purification device is further provided between the second purification device and the water tank, and the third purification device is composed of two activated carbon filter elements connected in parallel.

[0015] Preferably, a water supply valve and a high-pressure switch are provided on the clean water pipe, the water supply valve is located between the pressure barrel and the water tank, the high-pressure switch is located between the second purification device and the pressure barrel, and a low-pressure switch is provided on the water inlet pipe.

[0016] Preferably, the first purification device includes three purification filter cartridges connected in series, and a PP cotton filter element, a granular activated carbon filter element and a compressed activated carbon filter element are sequentially arranged in the three purification filter cartridges along the water inlet direction.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention returns the unused clean water in the return pipe to the water tank, and reheats the returned clean water through a heating component. The unused clean water is returned to the water tank regularly. Through the above method, it is ensured that the water temperature at the water-using end is always consistent with the clean water temperature in the water tank, and the energy consumption is effectively reduced. There is no need to add cold water for heating, thereby achieving energy saving. Compared with the prior art, it effectively solves the problem of water retention. By regularly recycling unused water and reheating it, it is ensured that the water temperature at the water-using end is always consistent with the water temperature in the water tank, avoiding energy waste and temperature fluctuations caused by water retention in the pipeline. Compared with the problems of heating retained water and unstable water temperature that may be caused in the prior art, the present invention can effectively reduce energy consumption and improve temperature control accuracy.

[0018] 2. The present invention provides a filling component, which can inflate the pressure chamber when the air pressure in the airbag is insufficient, ensuring that the pressure in the pressure chamber is always maintained in a stable range, preventing the airbag from being squeezed for a long time and failing, ensuring that purified water can be smoothly output during the water supply stage, and improving the water supply efficiency of the pressure barrel.

[0019] 3. The present invention uses the wastewater flow to drive the torque converter, which efficiently converts the kinetic energy and potential energy of the wastewater into mechanical energy, providing driving force for the air pump, which not only realizes energy recovery and utilization, but also avoids additional electricity consumption, achieving energy conservation and environmental protection. The common by-product of wastewater is effectively utilized to significantly improve the overall energy efficiency of the equipment, which is both economical and environmentally friendly. Compared with the existing technology, the energy transfer path of the airbag inflation process is simplified, energy loss is reduced, and the operating efficiency of the equipment is improved, which fundamentally reduces the maintenance requirements of the equipment and ensures the continuous and stable supply of air source to the pressure chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of an intelligent direct drinking machine with comprehensive multi-stage water purification treatment.

[0021] Figure 2 This is a three-dimensional schematic diagram of the internal structure of an intelligent direct drinking machine with comprehensive multi-stage water purification treatment. Figure 1 .

[0022] Figure 3 This is a three-dimensional schematic diagram of the internal structure of an intelligent direct drinking machine with comprehensive multi-stage water purification treatment. Figure 2 .

[0023] Figure 4 This is a three-dimensional schematic diagram of the water tank, the first purification device and the second purification device in an intelligent direct drinking machine with comprehensive multi-stage water purification treatment Figure 1 .

[0024] Figure 5 This is a three-dimensional schematic diagram of the water tank, the first purification device and the second purification device in an intelligent direct drinking machine with comprehensive multi-stage water purification treatment Figure 2 .

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of a waste water barrel in an intelligent direct drinking machine with comprehensive multi-stage water purification treatment.

[0026] Figure 7 It is a front view of the pressure barrel and waste water barrel in an intelligent direct drinking machine with comprehensive multi-stage water purification treatment.

[0027] Figure 8 It is a cross-sectional structural diagram of an intelligent direct drinking machine with comprehensive multi-stage water purification treatment.

[0028] Fig. 9It is a schematic diagram of the cross-sectional results of the pressure barrel airbag working in an intelligent direct drinking machine with comprehensive multi-stage water purification treatment.

[0029] Fig.10 It is a schematic diagram of the cross-sectional result after the air bag of the pressure barrel in the intelligent direct drinking machine with comprehensive multi-stage water purification treatment is expanded.

[0030] The numbers in the figure are: 1. First purification device; 11. Water inlet pipe; 12. First pipeline; 2. Second purification device; 21. Clean water pipe; 211. Water supply valve; 22. Concentrated water pipe; 221. First branch; 2211. Second solenoid valve; 222. Second branch; 223. Distribution valve; 23. Filling assembly; 231. Waste water bucket; 2311. Annular cylinder; 2312. Water storage chamber; 23121. Overflow hole; 2313. Drainage chamber; 23131. Second drainage pipe; 2314. Waste water outlet; 232. First drainage pipe; 233. Torque converter; 234. Air pump; 24. RO membrane filter element; 241. Booster pump; 242, first connecting pipe; 2421, first one-way valve; 243, second connecting pipe; 2431, wastewater proportioner; 2432, flushing valve; 3, third purification device; 4, pressure barrel; 41, second pipeline; 42, air bag; 421, water storage chamber; 422, pressure chamber; 43, first installation port; 44, second installation port; 441, first solenoid valve; 442, pressure sensor; 5, water tank; 51, water outlet pipe; 511, drain valve; 512, delivery pump; 52, heating assembly; 53, return pipe; 531, return valve; 54, high water level probe; 55, low water level probe. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figures 1 to 5 and Figure 8 As shown: an intelligent direct drinking machine with comprehensive multi-stage water purification treatment, comprising a first purification device 1, a second purification device 2, a pressure barrel 4 and a water tank 5, the first purification device 1 is provided with a water inlet pipe 11 connected to an external water source, a first pipeline 12 is connected between the first purification device 1 and the second purification device 2; a clean water pipe 21 is connected between the second purification device 2 and the water tank 5, a second pipeline 41 is connected between the pressure barrel 4 and the clean water pipe 21, and a water outlet pipe 51 and a heating component 52 for heating the clean water inside the water tank 5 are provided at the bottom of the water tank 5; The water outlet pipe 51 is provided with a drain valve 511 for controlling its opening and closing and a delivery pump 512 for delivering clean water from the water tank 5 to each water-using end; The water end is provided with a return pipe 53 connected to the water tank 5, and the return pipe 53 is provided with a return valve 531 for controlling the opening and closing thereof; A high water level probe 54 and a low water level probe 55 for detecting the water level are respectively provided at the top and the bottom of the water tank 5 .

[0033] First, the external water source is passed through the water inlet pipe 11 into the first purification device 1 for preliminary purification, and then flows into the second purification device 2 through the first pipe 12 for further treatment. Through the multi-stage purification process, the water quality is fully purified, and impurities in the water can be effectively removed, ensuring that the water quality used by users is cleaner, and improving the safety and taste of drinking water.

[0034] The purified water flows into the pressure barrel 4, which is connected to the water tank 5 and maintains an appropriate pressure to ensure that the water flows smoothly and is delivered to the water tank 5 with sufficient pressure. The top and bottom of the water tank 5 are respectively provided with a high water level probe 54 and a low water level probe 55, which are used to monitor the water level changes in the water tank 5 in real time to ensure that the amount of water in the water tank 5 is kept in the optimal range. When the water level in the water tank 5 is too high, the system will stop supplying water to the water tank 5; and when the water level in the water tank 5 is too low, the system will automatically stop the delivery pump 512 from working to avoid idling, ensure the safe operation of the equipment, reduce equipment loss and save energy consumption. A heating component 52 is provided at the bottom of the water tank 5 to heat the purified water stored in the water tank 5. When the user needs hot water, the water in the water tank 5 is heated to the set temperature by the heating component 52. The setting of the heating component 52 can continuously provide stable hot water, ensure that the water temperature at the water end is always kept within the set range, and avoid the inconvenience caused by temperature fluctuations. The drain valve 511 controls the water outflow in the water tank 5, and the purified water is delivered to each water end through the delivery pump 512.

[0035] Since the pipelines from the direct drinking machine to each water-using end are long, the water in the pipeline may be lowered due to the ambient temperature in winter, resulting in the water temperature at the water end being lower than the set temperature in the water tank 5. At this time, it is necessary to wait for the water in the pipeline that is lower than the purified water temperature in the water tank 5 to flow out before the hot water in the water tank 5 can flow out, which will cause a waste of water resources. When the water-using end is not in use, the unused purified water in the return pipe 53 is returned to the water tank 5, and the returned purified water is heated for a second time by the heating component 52. In order to better control the reflux of purified water in the return pipe 53, a return valve 531 can be provided on the water tank 5, and a timer electrically connected to the recovery valve 531 can be provided next to the recovery valve 531, so that the unused purified water in the pipeline can be returned to the water tank 5 at a regular time.

[0036] Through the above method, it is ensured that the water temperature at the water end is always consistent with the purified water temperature in the water tank 5, and energy consumption is effectively reduced. There is no need to add cold water for heating, thereby achieving energy saving effect. Compared with the prior art, it effectively solves the problem of water retention and avoids energy waste and temperature fluctuation caused by water retention in the pipeline. Compared with the problems of heating retained water and unstable water temperature that may be caused in the prior art, this solution effectively reduces energy consumption and improves the accuracy of temperature control.

[0037] like Figures 2 to 10 As shown: the second purification device 2 is also provided with a concentrated water pipe 22 for discharging sewage; an air bag 42 is provided in the pressure barrel 4, and the air bag 42 divides the pressure barrel 4 into a water storage chamber 421 and a pressure chamber 422, and the water storage chamber 421 is connected to the clean water pipe 21 through a second pipe 41, and a first installation port 43 connected to the air bag 42 is provided on the bottom of the pressure barrel 4, and a filling component 23 for inflating the air bag 42 is provided on the first installation port 43.

[0038] After the external water source is purified by the second purification device 2, it will be introduced into the clean water pipe 21, and the water in the clean water pipe 21 will flow into the second pipe 41, so that the second pipe 41 flows into the water storage chamber 421 of the pressure barrel 4. As the amount of clean water in the water storage chamber 421 increases, the airbag 42 is gradually squeezed, and the air in the airbag 42 will be compressed, thereby realizing the storage of clean water. When the water tank 5 is short of water and needs water supply, the clean water in the clean water pipe 21 will be introduced into the water tank 5 first. At this time, the water pressure in the clean water pipe 21 will drop due to the supply to the water tank 5, thereby causing the pressure in the second pipe 41 and the water storage chamber 421 to drop, and the compressed air will rebound due to the drop in water pressure, causing the airbag 42 to expand and generate reverse thrust, and the clean water in the water storage chamber 421 is discharged from the second pipe 41 into the clean water pipe 21, so that the stored clean water can be transported to the water tank 5. However, after long-term use, the air in the pressure chamber 422 may lose pressure, which may cause the airbag 42 to have insufficient reverse thrust to push the clean water to the water tank 5, so that the clean water may remain in the water storage chamber 421 for a long time, causing water quality changes and affecting the user's water use.

[0039] Through the setting of the filling component 23, the filling component 23 can inflate the pressure chamber 422 when the air pressure in the airbag 42 is insufficient, ensuring that the pressure in the pressure chamber 422 is always maintained in a stable range, preventing the airbag 42 from being squeezed for a long time and failing, ensuring that the purified water can be smoothly output during the water supply stage, and improving the water supply efficiency of the pressure barrel 4.

[0040] like Figures 2 to 10As shown: the filling assembly 23 includes a waste water barrel 231, a first drain pipe 232, a torque converter 233 and an air pump 234. The waste water barrel 231 is arranged beside the pressure barrel 4, the first drain pipe 232 is arranged at the bottom of the waste water barrel 231, the air pump 234 is arranged on the first mounting port 43, the torque converter 233 is arranged on the first drain pipe 232, the torque converter 233 is driven by the flow of waste water, and the air pump 234 is transmission-connected to the torque converter 233.

[0041] The wastewater separated in the second purification device 2 is collected by a wastewater barrel 231. A first drain pipe 232 is arranged at the bottom of the wastewater barrel 231 for discharging the wastewater. When the wastewater flows out through the first drain pipe 232, the flowing water drives the torque converter 233. The kinetic energy and potential energy of the wastewater can be converted into mechanical energy through the torque converter 233. The torque converter 233 is connected to the air pump 234 through a transmission device to transfer the mechanical energy to the air pump 234. The air pump 234 uses the driving force of the torque converter 233 to inflate the airbag 42 in the pressure barrel 4, thereby ensuring that the pressure in the pressure chamber 422 is always maintained within a stable range, preventing the airbag 42 from failing due to long-term squeezing, ensuring that the clean water can be smoothly output during the water supply stage, and improving the water supply efficiency of the pressure barrel 4.

[0042] The filling component 23 can also be set as a compressed gas tank, and the high-pressure gas stored in the compressed gas tank directly provides an air source for the airbag 42, so as to achieve simple and efficient gas replenishment. In addition, the filling component 23 can also be provided with an air pump 234 directly driven by a motor, and the pressure chamber 422 is inflated by the motor-driven air pump 234, so as to ensure the stability of the air source of the system during long-term operation. In addition to maintaining the pressure of the pressure chamber 422 by replenishing gas, the wastewater can be directly introduced into the pressure chamber 422, and the liquid pressure of the wastewater can be used to push the airbag 42 to lift, thereby squeezing the water in the water storage chamber 421, so as to achieve stable input and smooth output of clean water in the pressure barrel 4. Compared with the method of directly driving the air pump 234 by a motor, the kinetic energy and potential energy of the wastewater are efficiently converted into mechanical energy by using the flow of wastewater to drive the torque converter 233, so as to provide driving force for the air pump 234, which not only realizes the recycling of energy, but also avoids the consumption of additional electricity, and achieves the effect of energy saving and environmental protection. The common by-product of wastewater is effectively utilized, which significantly improves the overall energy efficiency of the equipment, and is both economical and environmentally friendly. Compared with the method of using a compressed gas tank to inflate the pressure chamber 422, although the compressed gas tank can provide a fast and stable gas source, due to its limited gas storage capacity, it will still lose pressure over time, so it needs to be regularly replenished, which increases the complexity of maintenance and operating costs. Compared with the method of using the hydraulic pressure of wastewater to push the airbag 42 up, the lifting effect of the airbag 42 may be unstable due to insufficient flow of wastewater, and because the water supply of the water tank 5 is random, it is impossible to ensure sufficient flow of wastewater by storing water in advance. By driving the torque converter 233 with wastewater, it is possible to rely on the wastewater generated during the operation of the water purification equipment to continuously provide power for the air pump 234, fundamentally reducing the maintenance requirements of the equipment and ensuring a continuous and stable supply of gas source to the pressure chamber 422.

[0043] By directly linking the torque converter 233 with the air pump 234, the energy transfer path of the airbag 42 inflation process is simplified, energy loss is reduced, and the operating efficiency of the equipment is improved. In order to prevent the wastewater flow from being insufficient to provide a sufficient air source to inflate the pressure chamber 422, a transmission component can be set between the torque converter 233 and the air pump 234. By adjusting the transmission ratio between the two, the output effect of the torque converter 233 can be maximized, thereby reducing the overall operating cost of the equipment and ensuring the stability of the equipment.

[0044] The airbag 42 in the pressure barrel 4 is regularly inflated by the air pump 234 driven by wastewater, which effectively avoids the problem of excessive compression of the airbag 42 caused by insufficient pressure, thereby extending the service life of the pressure barrel 4 and the airbag 42. The setting of the linkage between the wastewater flow and the hydraulic torque converter 233 realizes the automation of the inflation function of the airbag 42, reduces manual operation, and improves the intelligence level and convenience of use of the equipment.

[0045] It should be noted that the airbag 42 can completely fit with the inner wall of the pressure barrel 4 after expansion, ensuring that no clean water will remain inside the pressure barrel 4 when supplying water. The waste water barrel 231 can also be provided with an annular cylindrical structure, which is directly mounted on the outside of the pressure barrel 4, thereby reducing the use of space inside the water purifier.

[0046] like Figures 5 to 10 As shown: the bottom of the pressure barrel 4 is also provided with a second mounting port 44 for relieving pressure in the pressure chamber 422, the first mounting port 43 and the second mounting port 44 are both provided with a first solenoid valve 441, and the second mounting port 44 is also provided with a pressure sensor 442 for detecting the gas pressure in the pressure barrel 4.

[0047] By setting a second mounting port 44 at the bottom of the pressure barrel 4, and installing a pressure sensor 442 and a first solenoid valve 441 on the second mounting port 44, the gas pressure in the pressure chamber 422 can be monitored in real time. When the pressure exceeds the preset range, the first solenoid valve 441 of the second mounting port 44 automatically opens to release excess gas, ensuring that the pressure in the pressure chamber 422 is always within a safe range, effectively avoiding damage to the airbag 42 or system failure due to overpressure. The first solenoid valve 441 is provided on both the first mounting port 43 and the second mounting port 44, allowing dynamic adjustment of the gas in the pressure chamber 422. According to the working state, by controlling the opening and closing of the first solenoid valve 441, the inflation or pressure relief operation can be quickly completed to adapt to different water supply requirements and further optimize the operating efficiency of the pressure barrel 4.

[0048] Through the precise detection of gas pressure by the pressure sensor 442 and the coordinated control of the first solenoid valve 441, fatigue damage caused by long-term overpressure or squeezing of the airbag 42 can be avoided, thereby extending the service life of the pressure barrel 4 and its internal airbag 42 and reducing maintenance costs. The setting of the first solenoid valve 441 and the pressure sensor 442 of the first installation port 43 and the second installation port 44 enables the equipment to achieve fully automatic pressure management without manual intervention, significantly improving the intelligence and ease of use of the equipment to meet user needs. By adding a pressure relief function to the second installation port 44, when an abnormality occurs during system operation (such as insufficient wastewater drive or excessive inflation of the air pump 234), the first solenoid valve 441 of the second installation port 44 can respond quickly and release excess gas to ensure the reliability and stability of the equipment under various working conditions.

[0049] At the same time, by setting the second mounting port 44, the space in the pressure barrel 4 can be used to the maximum extent, so that it can store more water, avoiding the situation in the prior art where the air bag 42 cannot continue to expand after the air is compressed to a certain extent due to the setting of the air bag 42. Since the space in the water purifier is limited, the water storage capacity of the pressure barrel 4 can be further improved in this way.

[0050] like Figures 5 to 10 As shown: a wastewater outlet 2314 for collecting wastewater is arranged on the top of the wastewater bucket 231, and an annular cylinder 2311 connected with the wastewater outlet 2314 is arranged in the wastewater bucket 231. The annular cylinder 2311 divides the wastewater pool into a water storage chamber 2312 located in the center of the wastewater bucket 231 and a drainage chamber 2313 sleeved on the outside of the water storage chamber 2312. A plurality of overflow holes 23121 uniformly distributed around the axis of the annular cylinder 2311 are arranged on the top circumference side, a first drainage pipe 232 is arranged at the bottom of the water storage chamber 2312, and a second drainage pipe 23131 is arranged at the bottom of the drainage chamber 2313.

[0051] Since the discharge amount of wastewater is far less than the flow rate of clean water, there may be a problem of insufficient driving force when replenishing air to the pressure chamber 422 in the pressure barrel 4. In order to solve this problem, after the wastewater enters the wastewater barrel 231 through the wastewater port 2314, it will directly enter the annular cylinder 2311, so that the wastewater can be collected preferentially in the water storage chamber 2312. When the water level of the wastewater reaches the overflow hole 23121, the wastewater will flow out from the overflow hole 23121 into the drainage chamber 2313, and be directly discharged through the second drainage pipe 23131 on the drainage chamber 2313. In this way, a sufficient amount of wastewater can always be stored in the wastewater barrel 231 for inflating the pressure chamber 422 in the pressure barrel 4, so as to compensate for the problem of insufficient power of the wastewater flowing directly through the first drainage pipe 232.

[0052] Through the arrangement of multiple overflow holes 23121 and the second drain pipe 23131, wastewater can be automatically discharged after the water level reaches a certain level, ensuring the discharge efficiency of wastewater, avoiding wastewater retention, improving the smoothness of wastewater discharge, and reducing the resistance in the wastewater discharge process. By efficiently utilizing wastewater, the dependence on external energy is reduced, and the recovery and reuse of wastewater energy is achieved, thereby improving the energy-saving effect of the equipment and meeting environmental protection requirements. The automatic flow and discharge of wastewater makes wastewater management more automated without manual intervention. Through this intelligent management method, the operation of the equipment is more efficient and convenient, reducing the complexity of operation and maintenance costs.

[0053] like Figures 5 to 10 As shown: the concentrate pipe 22 is provided with a first branch 221 connected to the wastewater outlet 2314 and a second branch 222 for directly discharging wastewater, a distribution valve 223 is provided on the concentrate pipe 22 between the first branch 221 and the second branch 222, and a second solenoid valve 2211 is provided on the first branch 221.

[0054] The distribution valve 223 is provided between the first branch 221 and the second branch 222, and the distribution valve 223 is used to adjust the discharge path of the wastewater according to actual needs. In specific operation, when it is necessary to preferentially guide the wastewater to the wastewater outlet 2314 through the first branch 221, the second solenoid valve 2211 is opened, allowing the wastewater to flow into the first branch 221 and be further distributed through the distribution valve 223. When it is necessary to discharge the wastewater directly, the distribution valve 223 will be adjusted to the second branch 222, and the wastewater will be directly discharged through this branch, thereby avoiding the accumulation of wastewater.

[0055] The setting of the first branch 221 and the second branch 222 makes the discharge of wastewater flexible. Through the control of the distribution valve 223, the direction of the wastewater flow can be adjusted according to actual needs, and the rapid switching of the wastewater can be achieved to ensure the efficient operation of the equipment. By setting the linkage between the distribution valve 223 and the second electromagnetic valve 2211, the equipment can achieve accurate distribution of wastewater, avoid excessive accumulation of wastewater, and improve the efficiency of wastewater discharge and the stability of the equipment. By automatically controlling the switch of the second electromagnetic valve 2211 and the distribution valve 223, the equipment can achieve automatic distribution and discharge of wastewater without manual intervention, reducing the difficulty of operation and maintenance costs, and improving the intelligence level of the equipment. The discharge of wastewater is made more efficient, avoiding the waste of excessive accumulation and premature discharge of wastewater. At the same time, by optimizing the control method, the energy consumption during the operation of the equipment is reduced, which meets the needs of energy saving and environmental protection.

[0056] like Figure 1 , Figures 2 to 5 and Figure 8 As shown: the second purification device 2 includes a plurality of RO membrane filter cores 24 connected in parallel, each RO membrane filter core 24 is provided with a booster pump 241, the bottom of each RO membrane filter core 24 is provided with a first connecting pipe 242 connected to the clean water pipe 21 and a second connecting pipe 243 connected to the concentrated water pipe 22, each first connecting pipe 242 is provided with a first one-way valve 2421, each second connecting pipe 243 is provided with a wastewater proportioner 2431, and the concentrated water pipe 22 is provided with a flushing valve 2432 for cleaning the second purification device 2.

[0057] Multiple parallel RO membrane filter elements 24 and each RO membrane filter element 24 provide the required pressure through a booster pump 241, which can ensure the stable output of purified water. The bottom of the filter element is respectively provided with a first connecting pipe 242 and a second connecting pipe 243. The first connecting pipe 242 is used to transport the filtered purified water, and prevents the water from flowing back through the first one-way valve 2421, effectively preventing the purified water from flowing back into the RO membrane filter element 24, ensuring the stability of the purified water quality, and reducing the damage that the backflow may cause to the membrane assembly. The second connecting pipe 243 is connected to the concentrated water pipe 22 for discharging wastewater. Each second connecting pipe 243 is equipped with a wastewater proportioner 2431 for adjusting the discharge ratio of wastewater, which not only ensures the normal operation of the filter element, but also reduces the waste of wastewater and realizes the efficient use of resources. The concentrated water pipe 22 is also provided with a flushing valve 2432 for regular cleaning of the second purification device 2. When cleaning is required, the flushing valve 2432 is opened, and concentrated water is directed to backwash the RO membrane to remove dirt and sediment on the membrane surface. Regular use of the flushing valve 2432 to clean the RO membrane can effectively remove impurity deposits, prevent clogging, extend the service life of the filter assembly, and reduce maintenance costs. Through the series arrangement of multiple RO membrane filter elements 24 and the booster pump 241 equipped on each RO membrane filter element 24, the equipment can gradually improve the water purification efficiency, and even at a lower water inlet pressure, a stable output of clean water can be obtained, thereby improving the overall purification effect. The wastewater discharge is reasonably controlled by the wastewater proportioner 2431 to optimize the utilization rate of water resources; at the same time, the self-cleaning function reduces the replacement frequency due to pollution, thereby saving operating costs.

[0058] like Figure 1 , Figures 2 to 5 and Figure 8 As shown: a third purification device 3 is further arranged between the second purification device 2 and the water tank 5, and the third purification device 3 is composed of two activated carbon filter elements connected in parallel.

[0059] The setting of the third purification device 3 can further improve the taste of purified water, improve the purity of water, and ensure the safety of drinking water. Although the RO membrane filter element 24 can effectively remove various impurities, heavy metals, bacteria and other harmful substances in the water, the purified water after filtering may be slightly bland and the taste is not good enough. The post-activated carbon can absorb the odor and color remaining in the water, further improve the taste of the water, make the water sweeter and clearer, and remove the possible plastic taste or other tastes. At the same time, in the process of treating tap water, chlorine is usually added for disinfection, and the RO membrane may not be able to completely remove the residual chlorine in the water. The post-activated carbon can effectively absorb the residual chlorine to prevent the residual chlorine from causing potential harm to the human body, such as irritating the respiratory tract, skin, etc., and also avoid the reaction of the residual chlorine with the organic matter in the water to generate harmful disinfection by-products.

[0060] like Figures 1 to 5 and Figure 8 As shown: a water replenishment valve 211 and a high-pressure switch are provided on the clean water pipe 21, the water replenishment valve 211 is located between the pressure barrel 4 and the water tank 5, the high-pressure switch is located between the second purification device 2 and the pressure barrel 4, and a low-pressure switch is provided on the water inlet pipe 11.

[0061] By setting the water replenishment valve 211 between the pressure barrel 4 and the water tank 5, when the water in the water tank 5 is insufficient, the water replenishment valve 211 can be opened to automatically replenish the purified water in the pressure barrel 4 to the water tank 5, thereby ensuring the continuity of water supply. Even during the peak water usage period, the water in the water tank 5 can be guaranteed to be sufficient, thereby improving the user experience.

[0062] The high-pressure switch is located between the second purification device 2 and the pressure barrel 4, and can monitor the water pressure in the clean water pipe 21 in real time. When the clean water in the water tank 5 and the pressure barrel 4 is fully loaded, the pressure reaches the set upper limit, and the high-pressure switch automatically cuts off the operation of the booster pump 241 on the second purification device 2, avoiding damage to the pressure barrel 4 or the water tank 5 caused by excessive water pressure, thereby improving the safety and stability of the equipment.

[0063] The low pressure switch is located on the water inlet pipe 11 and can detect whether the water inlet pressure is sufficient. When the water inlet pressure is too low, the low pressure switch will automatically stop the operation of the booster pump 241 on the second purification device 2 to prevent the booster pump 241 from idling due to insufficient water pressure, thereby causing equipment failure, thereby extending the service life of the equipment.

[0064] like Figures 1 to 5 and Figure 8 As shown: the first purification device 1 includes three purification filter cartridges connected in series, and PP cotton filter elements, granular activated carbon filter elements and compressed activated carbon filter elements are arranged in sequence in the three purification filter cartridges along the water inlet direction.

[0065] Using the PP cotton filter element as the first filter layer can effectively intercept large particles of impurities in the water, such as mud, rust and suspended matter, protect subsequent filter elements from being blocked by particulate matter, and extend their service life.

[0066] The granular activated carbon filter element is used as the second filtration layer, and its developed pore structure is used to effectively adsorb odor, chlorine and organic compounds in the water, further improving the water quality and taste.

[0067] By using a compressed activated carbon filter as the third filter layer, its dense structure can more deeply absorb residual harmful substances in the water, such as trace heavy metals and fine particles, ensuring that the water is purer.

[0068] By setting up three purification filter cartridges in series, the functional division of each purification filter cartridge is clear, which not only improves the overall purification efficiency of the equipment, but also reduces the load pressure passing through multiple purification filter cartridges, thereby extending the service life of the first purification device 1, reducing the replacement frequency and maintenance cost. After the multi-layer filtration treatment of the first purification device 1, the water quality has been significantly improved, and the impurity content in the water entering the subsequent purification device has been greatly reduced, thereby improving the operating efficiency of the subsequent second purification device 2 and extending the service life of the second purification device 2. The purification filter cartridge can intercept different types of impurities in turn through different filter elements, reduce the resistance in the water flow, ensure smooth water flow, reduce the pressure and energy consumption required for equipment operation, further achieve energy saving and environmental protection, enable the equipment to adapt to different water quality conditions, and effectively filter even in tap water or groundwater with high impurity content, providing users with better water purification solutions.

[0069] It should be noted that there are preferably two first purification devices 1. By connecting two first purification devices 1 in parallel, the equipment's processing capacity for external water sources can be effectively increased, so that the amount of water that can be processed per unit time is significantly increased, thereby meeting the demand for purified water with a larger flow rate, and is suitable for a variety of water use scenarios such as homes and large offices. When the two first purification devices 1 are operated in parallel, the water flow is diverted to two purification channels, significantly reducing the load pressure of the single-channel purification device, reducing blockage and wear, extending the service life of the first purification device 1, and reducing the user's maintenance and replacement costs. Ensure the smoothness of the water flow, avoid water supply interruption due to blockage or overload operation of a single path, thereby improving the stability and reliability of the equipment operation.

[0070] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An intelligent direct drinking machine with integrated multi-stage water purification treatment, comprising a first purification device (1), a second purification device (2), a pressure barrel (4) and a water tank (5), wherein the first purification device (1) is provided with a water inlet pipe (11) connected to an external water source, a first pipeline (12) is connected between the first purification device (1) and the second purification device (2); a clean water pipe (21) is connected between the second purification device (2) and the water tank (5), and a second pipeline (41) is connected between the pressure barrel (4) and the clean water pipe (21), characterized in that: A water outlet pipe (51) and a heating component (52) for heating the purified water inside the water tank (5) are provided at the bottom of the water tank (5); The water outlet pipe (51) is provided with a drain valve (511) for controlling its opening and closing, and a delivery pump (512) for delivering clean water from the water tank (5) to each water-using end; The water-using end is provided with a water return pipe (53) connected to the water tank (5), and the water return pipe (53) is provided with a water return valve (531) for controlling the opening and closing of the water return pipe (53); A high water level probe (54) and a low water level probe (55) for detecting the water level are respectively arranged at the top and bottom of the water tank (5).

2. According to claim 1, the intelligent direct drinking machine with comprehensive multi-stage water purification treatment is characterized in that: The second purification device (2) is also provided with a concentrated water pipe (22) for discharging sewage; an air bag (42) is provided in the pressure barrel (4); the air bag (42) divides the pressure barrel (4) into a water storage chamber (421) and a pressure chamber (422); the water storage chamber (421) is connected to the purified water pipe (21) via a second pipe (41); a first mounting port (43) communicating with the air bag (42) is provided at the bottom of the pressure barrel (4); a filling assembly (23) for inflating the air bag (42) is provided on the first mounting port (43).

3. According to claim 2, the intelligent direct drinking machine with comprehensive multi-stage water purification treatment is characterized in that: The filling assembly (23) comprises a waste water barrel (231), a first drainage pipe (232), a hydraulic torque converter (233) and an air pump (234); the waste water barrel (231) is arranged beside the pressure barrel (4); the first drainage pipe (232) is arranged at the bottom of the waste water barrel (231); the air pump (234) is arranged on the first mounting opening (43); the hydraulic torque converter (233) is arranged on the first drainage pipe (232); the hydraulic torque converter (233) is driven by the flow of waste water; and the air pump (234) is in transmission connection with the hydraulic torque converter (233).

4. The intelligent direct drinking machine with comprehensive multi-stage water purification treatment according to claim 3 is characterized in that: The bottom of the pressure barrel (4) is also provided with a second mounting port (44) for relieving pressure in the pressure chamber (422); the first mounting port (43) and the second mounting port (44) are both provided with a first solenoid valve (441); and the second mounting port (44) is also provided with a pressure sensor (442) for detecting the gas pressure in the pressure barrel (4).

5. The intelligent direct drinking machine with comprehensive multi-stage water purification treatment according to claim 3 is characterized in that: A wastewater outlet (2314) for collecting wastewater is arranged at the top of the wastewater bucket (231), and an annular cylinder (2311) connected to the wastewater outlet (2314) is arranged in the wastewater bucket (231). The annular cylinder (2311) divides the wastewater pool into a water storage chamber (2312) located in the center of the wastewater bucket (231) and a drainage chamber (2313) sleeved outside the water storage chamber (2312). A plurality of overflow holes (23121) evenly distributed around the axis of the annular cylinder (2311) are arranged on the circumference of the top of the annular cylinder (2311), a first drainage pipe (232) is arranged at the bottom of the water storage chamber (2312), and a second drainage pipe (23131) is arranged at the bottom of the drainage chamber (2313).

6. The intelligent direct drinking machine with comprehensive multi-stage water purification treatment according to claim 5, characterized in that: The concentrated water pipe (22) is provided with a first branch (221) connected to the wastewater outlet (2314) and a second branch (222) for directly discharging wastewater; a distribution valve (223) is provided between the first branch (221) and the second branch (222) on the concentrated water pipe (22); and a second solenoid valve (2211) is provided on the first branch (221).

7. The intelligent direct drinking machine with comprehensive multi-stage water purification treatment according to claim 2, characterized in that: The second purification device (2) comprises a plurality of RO membrane filter cores (24) connected in parallel, each RO membrane filter core (24) being provided with a booster pump (241), a first connecting pipe (242) connected to the clean water pipe (21) and a second connecting pipe (243) connected to the concentrated water pipe (22) being provided at the bottom of each RO membrane filter core (24), each first connecting pipe (242) being provided with a first non-return valve (2421), each second connecting pipe (243) being provided with a wastewater proportioner (2431), and a flushing valve (2432) for cleaning the second purification device (2) being provided on the concentrated water pipe (22).

8. The intelligent direct drinking machine with comprehensive multi-stage water purification treatment according to claim 1, characterized in that: A third purification device (3) is also provided between the second purification device (2) and the water tank (5), and the third purification device (3) is composed of two activated carbon filter elements connected in parallel.

9. The intelligent direct drinking machine with comprehensive multi-stage water purification treatment according to claim 7, characterized in that: A water replenishment valve (211) and a high-pressure switch are provided on the clean water pipe (21); the water replenishment valve (211) is located between the pressure barrel (4) and the water tank (5); the high-pressure switch is located between the second purification device (2) and the pressure barrel (4); and a low-pressure switch is provided on the water inlet pipe (11).

10. The intelligent direct drinking machine with comprehensive multi-stage water purification treatment according to claim 1, characterized in that: The first purification device (1) comprises three purification filter cartridges connected in series, wherein a PP cotton filter element, a granular activated carbon filter element and a compressed activated carbon filter element are sequentially arranged in the three purification filter cartridges along the water inlet direction.

Images