Purified water storage and wastewater recycling and unified utilization device of RO (reverse osmosis) water purifier and RO water purification system comprising same

Abstract

The utility model provides a purified water storage and wastewater recycling and unified utilization device of an RO (Reverse Osmosis) water purifier and an RO water purification system comprising the device. The purified water storage wastewater recycling and unified utilization device (3) of the RO water purifier is connected with the RO water purifier (7); the RO water purifier (7) is provided with a reverse osmosis wastewater discharge pipeline (727) and a purified water outlet pipeline (725); the purified water storage and wastewater recycling and unified utilization device of the RO water purifier comprises a pressure water storage barrel (33), a purified water storage pipeline (36), a wastewater access pipeline (37), a wastewater storage pipeline (35), a wastewater recycling pipeline (39), a first one-way valve (371) and a second one-way valve (372). The utility model further provides an RO water purification system comprising the purified water storage and wastewater recycling and unified utilization device. The RO water purification system comprises an RO water purifier and the purified water storage and wastewater recycling and unified utilization device of the RO water purifier.

Description

Technical Field

[0001] The utility model relates to the field of water purifiers, in particular to a device for recycling and utilizing purified water stored in a water purifier and a RO water purification system comprising the device. Background Art

[0002] Reverse osmosis, also known as reverse osmosis, is a membrane separation process that uses a pressure differential to separate solvents from solutions. Pressure is applied to the feed solution on one side of the membrane. When the pressure exceeds its osmotic pressure, the solvent permeates in the opposite direction of its natural osmotic flow, resulting in the permeate (the permeate) on the low-pressure side of the membrane and the concentrated solution (the concentrate) on the high-pressure side. When seawater is treated with reverse osmosis, fresh water is produced on the low-pressure side of the membrane, while brine is produced on the high-pressure side. All water purifiers using reverse osmosis technology, also known as RO (Reverse Osmosis) (RO), produce purified water on the low-pressure side, which is called pure water. The concentrated water on the high-pressure side is called wastewater. Because RO water purifiers produce purified water, they also discharge a certain amount of wastewater. The ratio of pure water to wastewater is generally 1:1, meaning that for every cup of purified water produced, one cup of wastewater is wasted. In households, wastewater produced during water production is often directly discharged, significantly wasting water resources. Some people also discharge "waste water" into buckets to water flowers, etc., but storing water in buckets is very inconvenient.

[0003] Existing water purifiers are divided into two types: those with a water storage tank to store pure water and those without a water storage tank. Compared with water purifiers without a water storage tank, water purifiers with a water storage tank can obtain a larger pure water flow rate within a certain period of time when using the same size water pump and RO membrane. However, because the water storage tank of existing water purifiers uses compressed air as the pressure source, the volume utilization rate is low, and the pressure release decreases sharply as the amount of water in the water storage tank decreases. This will lead to problems such as the water purifier being huge in size, unstable water outlet pressure, the flow rate rapidly decreasing along with the water storage volume, and incomplete tail water discharge. When wastewater needs to be recycled and stored at the same time, if the same type of air pressure water storage tank is also used, the above problems will also exist and be more serious.

[0004] In summary, the existing technology faces the following challenges: how to recycle wastewater discharged from RO water purifiers to improve water resource utilization and reduce resource waste. At the same time, how to minimize the size of the water purifier, improve the utilization of the internal space of the water purifier, stabilize the outlet pressure of the pure water and wastewater of the water purifier, and increase the outlet flow rate. Utility Model Content

[0005] The utility model provides a device for recycling and utilizing the purified water, storage, and wastewater of an RO water purifier, and an RO water purification system including the device, to solve the problems existing in the prior art of how to recycle and reuse the wastewater discharged by the RO water purifier to improve the utilization rate of water resources and reduce resource waste. Furthermore, the device minimizes the volume of the water purifier, improves the utilization rate of the internal space of the water purifier, stabilizes the outlet pressure of the pure water and wastewater of the water purifier, and increases the water flow rate.

[0006] To this end, the present invention proposes a device for recycling and utilizing the purified water stored in a water purifier and a RO water purification system including the device, and the technical solutions adopted are as follows:

[0007] A device for recycling and utilizing the purified water stored in an RO water purifier. The device 3 for recycling and utilizing the purified water stored in an RO water purifier is connected to an RO water purifier 7. The RO water purifier 7 has a reverse osmosis wastewater discharge pipe 727 and a purified water outlet pipe 725.

[0008] The clean water storage and waste water recycling and unified utilization device of the RO water purifier includes: a pressure water storage tank 33, a waste water inlet pipe 37, a waste water storage pipe 35, a waste water recycling pipe 39, a clean water storage pipe 36 and a second one-way valve 372;

[0009] The wastewater inlet pipe 37 is connected to the reverse osmosis wastewater discharge pipe 727;

[0010] The wastewater storage pipeline 35 is connected to the wastewater inlet pipeline 37;

[0011] The clean water storage pipeline 36 is connected to the clean water outlet pipeline 725;

[0012] A pressure water storage tank 33, one side of which is connected to the wastewater storage pipeline 35, and the other side of which is connected to the clean water storage pipeline 36;

[0013] The wastewater recycling pipeline 39 is connected to the wastewater storage pipeline 35 and the wastewater inlet pipeline 37; or the wastewater recycling pipeline 39 is connected to the pressure water storage tank 33;

[0014] A second one-way valve 372 for controlling the flow of water from the pressure water storage tank 33 and the wastewater inlet pipe 37 to the wastewater recycling pipe 39 is provided on the wastewater recycling pipe 39;

[0015] in,

[0016] The wastewater recycling pipeline 39 is connected to the second water pipeline 202 and / or the wastewater dedicated water equipment 376.

[0017] Furthermore, the RO water purifier's purified water storage and wastewater recycling and unified utilization device further includes: a filter 34 provided on the wastewater storage pipeline 35 .

[0018] Furthermore, the RO water purifier's purified water storage and wastewater recycling and unified utilization device further includes: a pressure gauge 382 connected to the pressure water storage tank 33 .

[0019] Furthermore, the RO water purifier's purified water storage and wastewater recycling and unified utilization device further includes: a pressure relief valve 381 for outward pressure relief provided on the pressure water storage tank 33 , the filter 34 , the wastewater storage pipeline 35 , or the wastewater recycling and utilization pipeline 39 .

[0020] Furthermore, the pressure water storage barrel 33 is a container having multiple cavities, which can store two or more fluids by means of diaphragms, pistons, independent bags, etc., and can transmit pressure between different fluids inside without substance exchange.

[0021] Furthermore, the RO water purifier's purified water storage and wastewater recycling and unified utilization device further includes: a pressure relief pipeline 38 connected to a pressure relief valve 381 , and the pressure relief pipeline is connected to a safe drainage point 380 .

[0022] Furthermore, the RO water purifier's purified water storage and wastewater recycling and unified utilization device also includes: a first one-way valve 371 that controls the direction of water flow from the wastewater inlet pipe 37 to the pressure water storage tank 33 and the wastewater recycling and utilization pipe 39, and is arranged on the wastewater inlet pipe 37.

[0023] The present invention provides an RO water purification system including a device for recycling and utilizing purified water, stored wastewater, and the RO water purification system comprises: an RO water purifier and the device for recycling and utilizing purified water, stored wastewater, and the RO water purifier as described above; wherein the RO water purifier 7 has a raw water inlet pipe 27, a purified water outlet pipe 725, and a reverse osmosis wastewater discharge pipe 727.

[0024] The raw water inlet pipe 27 is connected to the first water pipe 201;

[0025] The wastewater recycling pipeline 39 is connected to the second water pipeline 202 and / or the wastewater dedicated water equipment 376.

[0026] The clean water storage pipeline 36 is connected to the clean water outlet pipeline 725 and the clean water faucet 726 .

[0027] Furthermore, the RO water purification system further comprises: a first water pipe 201 and a second water pipe 202;

[0028] The clean water storage and waste water recycling and unified utilization device has a waste water recycling pipeline 39;

[0029] The raw water inlet pipe 27 is connected to the first water pipe 201;

[0030] The clean water storage and wastewater recycling and unified utilization device introduces wastewater from the wastewater access pipeline 37 and connects it to the second water pipe 202 through the wastewater recycling and utilization pipeline 39; and / or the clean water storage and wastewater recycling and unified utilization device introduces wastewater from the wastewater access pipeline 37, and the wastewater dedicated water equipment 376 is connected to the wastewater recycling and utilization pipeline 39 or the wastewater storage pipeline 35;

[0031] The RO water purification system further includes: a water outlet 21 provided on the second water pipe 202 and connected to daily water equipment.

[0032] The first water pipe 201 and the second water pipe 202 are respectively located upstream and downstream of the same water pipe. The RO water purification system also includes: a fourth one-way valve 24 arranged on the first water pipe 201 or the second water pipe 202 to prevent the wastewater in the wastewater recycling pipeline 39 from flowing back into the raw water inlet pipeline 27.

[0033] The utility model relates to an RO water purifier, a device for storing purified water and recycling and utilizing wastewater, and an RO water purification system including the device. The device can completely recycle the wastewater discharged from the RO water purifier 7, namely, the wastewater discharged from the reverse osmosis wastewater discharge pipe 727. When the RO water purifier 7 produces water, it produces purified water and wastewater. Although the wastewater is the wastewater discharged during the purified water production process, after primary filtration, it is still cleaner than ordinary water, such as tap water from a water pipe or water used before water production, except that the ion concentration in the water is relatively high. The utility model connects the purified water storage pipe 36 to the purified water outlet pipe 725 and connects the wastewater inlet pipe 37 to the reverse osmosis wastewater discharge pipe 727. The purified water and wastewater are stored simultaneously in the pressure water storage tank 33, thereby achieving the simultaneous storage of purified water and wastewater recovery using a single container. The wastewater discharged from the RO water purifier 7 is then utilized through the wastewater storage pipe 35.

[0034] When the RO water purifier 7 is working, the booster pump in the RO water purifier 7 pressurizes the water so that the wastewater side is at high pressure, and the reverse osmosis wastewater discharge pipe 727 discharges the wastewater. Ideally, the wastewater discharged from the reverse osmosis wastewater discharge pipe 727 can be used directly and can be connected to wastewater-dedicated water-using equipment 376, such as wastewater taps, toilets, and other water terminals or water-using equipment; or, the wastewater discharged from the reverse osmosis wastewater discharge pipe 727 can be directly connected to the water pipe to meet the water needs of daily water-using equipment. The wastewater discharged from the reverse osmosis wastewater discharge pipe 727, that is, the concentrated water discharged when the RO water purifier produces pure water, is still water filtered by the primary filter element and is cleaner water. In this way, the wastewater is connected back to the water pipe for use in daily equipment, which also realizes the recycling of wastewater.

[0035] However, the time that the user uses the purified water from the water purification tap 726 may not be completely matched with the time and amount of water used by the daily water-using equipment connected to the second water pipe 202, and / or the wastewater-specific water-using equipment 376. Therefore, the present invention can simultaneously store the pure water discharged from the purified water outlet pipe 725 and the wastewater discharged from the reverse osmosis wastewater outlet pipe 727 by arranging a pressure water storage barrel 33 on the purified water storage pipe 36 and the wastewater storage pipe 35, thereby realizing the storage of pure water and the recovery of wastewater, and avoiding the problem of overpressure caused by the wastewater discharge not being timely due to the lack of water on the wastewater side during water production in the RO water purifier 7. Since pure water and wastewater will inevitably be produced simultaneously during the water production process, if the wastewater cannot be discharged or used in time, it will also affect the water production. The designed pressure water storage barrel 33 can store both the pure water produced during water production and the wastewater that was originally discharged.

[0036] When the user uses the purified water in the purified water faucet 726, the RO water purifier 7 is activated, and the purified water produced flows to the purified water faucet 726 through the purified water outlet pipe 725. At the same time, the purified water storage wastewater recycling and unified utilization device of the present invention also discharges the purified water in the pressure water storage barrel 33. This is because the wastewater produced by the RO water purifier 7 will flow to the wastewater inlet pipe 37, the wastewater storage pipe 35, and the wastewater side of the pressure water storage barrel 33 through the reverse osmosis wastewater discharge pipe 727 in sequence, thereby realizing the recovery and storage of the wastewater. At this time, the wastewater in the pressure water storage barrel 33 increases, and the purified water squeezed out of the purified water side also flows to the purified water faucet 726 through the purified water storage pipe 36, doubling the flow rate of the purified water, which is actually equal to the total flow rate of the water pump 723.

[0037] Furthermore, when a user uses a water-using device connected to the second water pipe 202 and / or the dedicated wastewater water-using device 376, the RO water purifier 7 is activated, and the wastewater produced flows sequentially through the reverse osmosis wastewater discharge line 727 to the wastewater inlet line 37 and the wastewater recycling line 39, supplying wastewater to the water-using device in the second water pipe 202 and / or the dedicated wastewater water-using device 376. Simultaneously, the clean water storage and wastewater recycling and unified utilization device of the present invention is used to discharge the wastewater from the pressure water storage tank 33. This is because the clean water produced by the RO water purifier 7 flows through the clean water outlet line 725 to the clean water storage line 36, flowing into the clean water side of the pressure water storage tank 33, thereby storing the clean water. At this time, the amount of clean water in the pressure water storage tank 33 increases, and the wastewater squeezed out of the wastewater side flows through the wastewater storage pipeline 35 to the wastewater recycling pipeline 39, and then flows to the second water pipe 202 water equipment and / or the wastewater-specific water equipment 376, so that the flow rate of the wastewater is doubled, which is actually equal to the total flow rate of the water pump 723.

[0038] The pressure water storage tank 33 can store and supply water to meet peak demand. It collects the clean water and wastewater produced by the RO water purifier 7 when they are not needed by the outside world. It recovers and stores wastewater when the clean water is in use, and stores clean water when the wastewater is in use. The pressure storage tank utilizes pressure fluctuations between the clean and wastewater sides to store or discharge clean and wastewater, and supplies water to the outside world when water is needed.

[0039] The first and second check valves 371 and 372 control the direction of water flow, and other means for achieving the same purpose are also included, such as indirectly controlling the direction of water flow through a solenoid valve. The first check valve 371 can be moved upstream to the interior of the RO water purifier 7 or replaced by another valve. The second check valve 372 is not required if only the dedicated wastewater water supply device 376 is installed and the second water pipe 202 is not connected.

[0040] The pressure water storage tank 33 can be a diaphragm, a piston, an independent bag, etc., as long as it has multiple cavities, can store more than two fluids, and can transmit pressure between different fluids inside without exchanging substances.

[0041] The pressure water storage tank 33 typically has one inlet and outlet connected to the wastewater storage pipeline 35 and one inlet and outlet connected to the clean water storage pipeline 36. If the pressure water storage tank has multiple inlets and outlets on the wastewater side, connecting them to the wastewater access pipeline 37 and the wastewater recycling pipeline 39 respectively simply merges the wastewater storage pipeline into the pressure water storage tank 33, without changing its nature. The same applies to the clean water. The existing pressure water storage tank 33 of the utility model is connected to the wastewater recycling pipeline 39 only through the wastewater storage pipeline 35. The wastewater storage pipeline 35 realizes bidirectional flow, and the direction of water flow is controlled by the second one-way valve 372. The existing pressure water storage tank 33 of the utility model can also be supplied with water from the wastewater access pipeline 37 and discharged from the pressure water storage tank 33 through another independent pipeline. The water in the pressure water storage tank 33 is introduced into the wastewater recycling pipeline 39. That is, the water inflow and water outflow of the pressure water storage tank 33 are respectively realized through two pipelines, and the purpose of providing storage water to the wastewater recycling pipeline 39 can also be achieved.

[0042] In addition, the RO water purifier's purified water storage and wastewater recycling and unified utilization device also includes a filter 34 disposed on the wastewater storage pipeline 35. By utilizing the bidirectional movement of water flow here, the wastewater entering the pressure water storage tank 33 is filtered on the wastewater storage pipeline 35, thereby improving the purity of the wastewater and ensuring the water quality within the pressure water storage tank 33. At the same time, the filter 34 is backwashed when the wastewater in the pressure water storage tank 33 flows out and enters the wastewater recycling pipeline, significantly extending the service life of the filter 34.

[0043] Among them, the clean water storage and wastewater recycling and unified utilization device of the RO water purifier provided by the utility model can be used as a separate device. In the device, the clean water storage pipeline 36, the pressure water storage tank 33, the wastewater access pipeline 37, the wastewater storage pipeline 35, the wastewater recycling pipeline 39, the first one-way valve 371 and the second one-way valve 372 form a self-contained system, which can realize the convenient and seamless recovery of pure water and wastewater, so that all wastewater is utilized and no water resources are wasted.

[0044] In addition, the RO water purification system of the present invention, which includes the device for unified recycling of purified water, storage and wastewater, combines the RO water purifier and the device for unified recycling of purified water, storage and wastewater of the RO water purifier described above into one, forming a composite RO water purification system that can not only produce and store pure water, but also recycle wastewater, or a composite large RO water purifier. The RO water purification system including the device for unified recycling of purified water, storage and wastewater realizes water production, purified water storage, wastewater recycling, wastewater utilization or wastewater supply, and can achieve full utilization of wastewater without wastewater discharge.

[0045] The utility model fully automates the wastewater utilization, and the filtered wastewater is connected back to the original water pipe or used as wastewater, without changing the user's original water use habits. The wastewater recycling process is safe and barrier-free, and all the wastewater generated by the RO water purifier is recycled and utilized, which greatly improves the utilization rate of water resources and reduces water waste.

[0046] In addition to the first water pipe 201 and the second water pipe 202, the present invention also includes a dedicated wastewater water device 376 and a water outlet 21, providing a more comprehensive RO water purification system. Wastewater can be connected to the dedicated wastewater water device 376 for wastewater utilization. The water outlet 21 can also be directly connected to daily water devices, such as kitchen faucets, taps, or other water devices, to achieve simple and efficient wastewater recycling. This specific structure can further achieve full utilization of wastewater without wastewater discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a schematic diagram of the structure of a device for recycling and utilizing purified water and wastewater from an RO water purifier according to an embodiment of the present invention (excluding the RO water purifier); the arrows in the figure indicate the direction of water flow;

[0048] Figure 2 This is a structural diagram of an RO water purifier system (including an RO water purifier) ​​according to an embodiment of the present invention; the arrows in the figure indicate the direction of water flow;

[0049] Figure 3This is another structural schematic diagram of the RO water purifier system of the present invention (including the RO water purifier) ​​according to an embodiment of the present invention; the arrows in the figure indicate the direction of water flow.

[0050] Description of Figure Numbers:

[0051] 201, first water pipe; 202, second water pipe; 21, water outlet; 20, wastewater inlet; 23, third one-way valve; 24, fourth one-way valve; 27, raw water inlet pipe; 270, raw water outlet;

[0052] 3. Clean water storage and wastewater recycling and utilization device; 33. Pressure water storage tank; 331. Clean water side; 332. Wastewater side; 34. Filter; 35. Wastewater storage pipeline; 36. Clean water storage pipeline; 39. Wastewater recycling pipeline;

[0053] 37. Wastewater inlet pipeline; 371. First one-way valve; 372. Second one-way valve; 375. Wastewater service pipeline; 376. Wastewater dedicated water equipment; 377. Junction point; 378. Junction point; 38. Pressure relief pipeline; 380. Safety drainage point; 381. Pressure relief valve; 382. Pressure gauge;

[0054] 7. RO water purifier; 71. Primary filtration section; 710. Raw water inlet; 713. PP filter element; 714. Activated carbon filter element; 715. Ultrafiltration filter element;

[0055] 72. Reverse osmosis filtration section; 720. Clean water outlet; 723. Water pump; 724. RO filter element; 725. Clean water outlet pipe; 726. Clean water faucet; 727. Reverse osmosis wastewater discharge pipe; 728. High-pressure switch. DETAILED DESCRIPTION

[0056] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the present invention is now described.

[0057] The utility model provides a device for recycling and utilizing the purified water, storage and waste water of an RO water purifier. The core of the device is to recycle the waste water, such as storing and utilizing the waste water. Furthermore, the stored waste water can be filtered and reused.

[0058] The embodiment of the present utility model utilizes a pressure water storage barrel to store the discharged waste water, and then connects the water in the pressure water storage barrel back to the original tap water pipeline of the user's home, so that the "waste water" can be conveniently used in the process of daily water use. The "waste water" discharged by the water purifier is actually not waste water itself, but can be called concentrated water. Concentrated water is also water that has been processed by the first few levels of filter elements in the water purifier. It is cleaner than raw water, but has a higher salt content than pure water. Therefore, there is no problem in connecting the "waste water" back to the original water pipe for daily use. Therefore, the most convenient way to use water is actually to directly connect the waste water back to the original water pipe, and consume the waste water in daily water use. The specific plan is as follows:

[0059] The utility model embodiment of a RO water purifier of the water storage wastewater recycling and unified utilization device 3, such as Figure 2 and Figure 3 As shown, the RO water purifier's purified water storage and wastewater recycling and unified utilization device 3 is connected to the RO water purifier 7, and the RO water purifier 7 has a reverse osmosis wastewater discharge pipe 727 and a purified water outlet pipe 725; the inlet water or raw water source of the RO water purifier 7 can come from a water pipe (such as the first water pipe 201) or from water stored in a water bucket (not shown in the figure);

[0060] Combined with Figure 1 As shown, the clean water storage and wastewater recycling and unified utilization device of the RO water purifier includes: a pressure water storage tank 33, a clean water storage pipeline 36, a wastewater access pipeline 37, a wastewater storage pipeline 35, a wastewater recycling pipeline 39, a first one-way valve 371 and a second one-way valve 372;.

[0061] The clean water storage pipeline 36 is connected to the clean water outlet pipeline 725; the waste water inlet pipeline 37 is connected to the reverse osmosis waste water discharge pipeline 727; it is used to store the clean water produced by the RO water purifier 7 and the discharged "waste water" in the clean water storage and waste water recycling and utilization device of the RO water purifier for subsequent recycling;

[0062] The clean water storage pipeline 36 is connected to the clean water side 331 of the pressure water storage barrel 33; the wastewater storage pipeline 35 is connected to the wastewater access pipeline 37, which is used to store and transmit the "wastewater" discharged by the RO water purifier 7. Ideally, the wastewater discharged from the reverse osmosis wastewater discharge pipeline 727 can be used directly and can be connected to wastewater-specific water-using equipment 376, such as: wastewater faucets, toilets, and other water terminals or water-using equipment; or, the wastewater discharged from the reverse osmosis wastewater discharge pipeline 727 can be directly connected to the water pipe to meet the water needs of daily water-using equipment. The wastewater discharged from the reverse osmosis wastewater discharge pipeline 727, that is, the concentrated water discharged when the RO water purifier makes pure water, is still water filtered by the primary filter element and is cleaner water. In this way, the wastewater is connected back to the water pipe for daily equipment use, which also realizes the recycling of wastewater.

[0063] The wastewater storage pipeline 35, the wastewater access pipeline 37 and the wastewater recycling pipeline 39 intersect, and the intersection point 377 is located between the first one-way valve 371 and the second one-way valve 372 to achieve the control of water flow direction and wastewater flow direction;

[0064] However, the time when the user uses purified water may not completely match the time and amount of water used by the daily water equipment connected to the second water pipe 202 and / or the wastewater-specific water equipment 376. Therefore, the present invention can simultaneously store the pure water discharged from the purified water outlet pipe 725 and the wastewater discharged from the reverse osmosis wastewater outlet pipe 727 by setting a pressure water storage barrel 33 on the purified water storage pipe 36 and the wastewater storage pipe 35, thereby realizing the storage of purified water and the recycling of wastewater. It recycles wastewater when purified water is used and stores purified water when wastewater is used, thus avoiding the problem of overpressure caused by untimely discharge of wastewater due to lack of water on the wastewater side during water production in the RO water purifier 7. Figure 1 As shown, the wastewater recycling pipeline 39 connects the wastewater storage pipeline 35 and the wastewater access pipeline 37; the connection point of the wastewater recycling pipeline 39, the wastewater storage pipeline 35 and the wastewater access pipeline 37 is the intersection 377; since pure water and wastewater are inevitably produced simultaneously during the water production process, if the wastewater cannot be discharged or used in time, it will also affect the water production. The designed pressure water storage tank 33 can store both the pure water produced during water production and the wastewater that was originally discharged directly. At the same time, the innovative use of water to replace the common air as the pressure source and the combination of the two air pressure water storage tanks into a pressure water storage tank that can store both clean water and wastewater greatly improves the volume utilization rate of the water storage tank, stabilizes the pressure, and increases the flow rate.

[0065] When the user uses the purified water in the purified water faucet 726, the RO water purifier 7 is activated, and the purified water produced flows to the purified water faucet 726 through the purified water outlet pipe 725. At the same time, the purified water storage wastewater recycling and unified utilization device of the present invention also discharges the purified water in the pressure water storage barrel 33. This is because the wastewater produced by the RO water purifier 7 will flow to the wastewater inlet pipe 37, the wastewater storage pipe 35, and the wastewater side of the pressure water storage barrel 33 through the reverse osmosis wastewater discharge pipe 727 in sequence, thereby realizing the recovery and storage of the wastewater. At this time, the wastewater in the pressure water storage barrel 33 increases, and the purified water squeezed out of the purified water side also flows to the purified water faucet 726 through the purified water storage pipe 36, doubling the flow rate of the purified water, which is actually equal to the total flow rate of the water pump 723.

[0066] Furthermore, when a user uses a water-using device connected to the second water pipe 202 and / or the dedicated wastewater water-using device 376, the RO water purifier 7 is activated, and the wastewater produced flows sequentially through the reverse osmosis wastewater discharge line 727 to the wastewater inlet line 37 and the wastewater recycling line 39, supplying wastewater to the water-using device in the second water pipe 202 and / or the dedicated wastewater water-using device 376. Simultaneously, the clean water storage and wastewater recycling and unified utilization device of the present invention is used to discharge the wastewater from the pressure water storage tank 33. This is because the clean water produced by the RO water purifier 7 flows through the clean water outlet line 725 to the clean water storage line 36, flowing into the clean water side of the pressure water storage tank 33, thereby storing the clean water. At this time, the amount of clean water in the pressure water storage tank 33 increases, and the wastewater squeezed out of the wastewater side flows through the wastewater storage pipeline 35 to the wastewater recycling pipeline 39, and then flows to the second water pipe 202 water equipment and / or the wastewater-specific water equipment 376, so that the flow rate of the wastewater is doubled, which is actually equal to the total flow rate of the water pump 723.

[0067] The pressure water storage tank 33 is connected to the clean water storage pipeline 36 and the waste water storage pipeline 35, and is used to store clean water and waste water, which can play the role of shifting peaks and filling valleys, stabilizing pressure, and amplifying flow;

[0068] A first one-way valve 371 is provided on the wastewater inlet pipe 37 to control the one-way flow of water from the wastewater inlet pipe 37 to the pressure water storage tank 33. The first one-way valve 371 can be provided on the wastewater inlet pipe 37 to control the one-way flow of wastewater from the wastewater inlet pipe 37 to the wastewater storage pipe 35. The first one-way valve 371 can be provided on the wastewater inlet pipe 37 or moved upstream. The first one-way valve 371 can be provided inside the RO water purifier 7 or replaced by another valve. As long as the RO water purifier is provided with a device to prevent backflow, even if it is a solenoid valve controlled by a switch, the first one-way valve 371 is not required for the present invention, but the effect of preventing backflow is better when the first one-way valve 371 is provided.

[0069] The second one-way valve 372, which controls the one-way flow of water from the pressure water storage tank 33 to the wastewater recycling pipeline 39, is installed on the wastewater recycling pipeline 39. It can control the one-way flow of wastewater from the pressure water storage tank 33 from the wastewater storage pipeline 35 to the wastewater recycling pipeline 39, so as to realize the utilization of wastewater from the inside to the outside and prevent tap water from flowing from the second water pipeline 202 from the outside to the inside into the pressure water storage tank 33; the second one-way valve 372 can be omitted when only the dedicated wastewater water equipment 376 is installed and the second water pipeline 202 is not connected; wherein,

[0070] The first structure of the RO water purifier's clean water storage and wastewater recycling and unified utilization device is as follows Figure 1 As shown, the wastewater recycling pipeline 39 is connected to the second water pipeline 202. The wastewater in the wastewater recycling pipeline 39 enters the second water pipeline 202 through the wastewater introduction water pipeline inlet 20, so that the wastewater can be supplied to the second water pipeline 202. The second water pipeline 202 can be a kitchen water pipeline, a bathroom water pipeline, a drinking water supply pipeline, or a tap water supply pipeline. Therefore, the wastewater of the RO water purifier can be further utilized, for example, in kitchen water, toilet water, and bathing water.

[0071] The second structure of the RO water purifier's clean water storage and wastewater recycling and unified utilization device is as follows Figure 1 As shown,

[0072] The RO water purifier's purified water storage and wastewater recycling and unified utilization device includes: a wastewater-dedicated water-using device 376 connected to the wastewater recycling pipeline 39 or the wastewater storage pipeline 35, that is, the wastewater from the wastewater recycling pipeline 39 or the wastewater storage pipeline 35 is directly used by the wastewater-dedicated water-using device 376. The wastewater-dedicated water-using device 376 can be a wastewater faucet or other water-using equipment. The wastewater-dedicated water-using device 376 can be connected to the wastewater recycling pipeline 39 through the wastewater use pipeline 375.

[0073] In summary, the clean water storage and wastewater recycling and unified utilization device of the RO water purifier of the present invention can have three structures, all of which are the objects of protection of the present invention:

[0074] The first structure of the RO water purifier's clean water storage and wastewater recycling and unified utilization device, such as Figure 1 The figure includes the portion connected to the second water pipe 202, but does not include the dedicated waste water equipment 376;

[0075] The second structure of the RO water purifier's clean water storage and wastewater recycling and unified utilization device is as follows Figure 1 The figure includes the wastewater dedicated water equipment 376, but does not include the part connected to the second water pipe 202;

[0076] In addition, there is a third structure of the RO water purifier's clean water storage and wastewater recycling and unified utilization device, namely Figure 1 As shown in the figure, the RO water purifier's water purification storage and wastewater recycling and unified utilization device includes both a dedicated wastewater water device 376 and a portion connected to the second water pipe 202. In this way, it can not only provide wastewater to the second water pipe 202, realize the online utilization of wastewater by the kitchen water pipe, the bathroom water pipe, the drinking water supply pipe or the tap water supply pipe, but also realize the water use of wastewater faucets, toilets, and other water terminals or water equipment. The two can be used separately at different times and as needed, or they can be used simultaneously to fully utilize the wastewater.

[0077] Furthermore, the RO water purifier's purified water storage and wastewater recycling and unified utilization device also includes a filter 34 disposed on the wastewater storage pipeline 35. By utilizing the bidirectional movement of water flow here, the wastewater entering the pressure water storage tank 33 is filtered on the wastewater storage pipeline 35, thereby improving the purity of the wastewater and ensuring the water quality within the pressure water storage tank 33. Furthermore, the filter 34 is backwashed when the wastewater in the pressure water storage tank 33 flows out and enters the wastewater recycling pipeline, significantly extending the service life of the filter 34.

[0078] Furthermore, the RO water purifier's purified water storage and wastewater recycling and unified utilization device also includes a pressure gauge 382 connected to the pressure water storage tank 33 for monitoring the pressure in the pressure water storage tank 33. The pressure gauge 382 can also simultaneously monitor the water storage volume in the pressure water storage tank 33 to protect the pressure water storage tank 33 or provide a water pressure reference to the second water pipe 202 or the dedicated wastewater water equipment 376. Furthermore, the pressure gauge 382 can also be installed on the wastewater storage line 35, for example, between the filter 34 and the first one-way valve 371, or between the filter 34 and the second one-way valve 372, to monitor the pressure at various points in the wastewater storage line 35 and prevent excessive pressure in the wastewater storage line 35 from impacting the wastewater recycling line 39, water pipes, or water equipment.

[0079] Furthermore, the RO water purifier's purified water storage and wastewater recycling and unified utilization device also includes a pressure relief valve 381 mounted on the pressure water storage tank 33. When the pressure within the pressure water storage tank 33 is excessive, for example, exceeding 0.8 MPa, the pressure relief valve 381 on the pressure water storage tank 33 partially relieves the pressure, thereby preventing excessive pressure within the pressure water storage tank 33. The pressure relief valve 381 can be mounted directly on the pressure water storage tank 33 or positioned on the wastewater storage pipeline 35, for example, between the filter 34 and the first one-way valve 371, between the filter 34 and the second one-way valve 372, or downstream of the first one-way valve 371 on the wastewater storage pipeline 35. Alternatively, the pressure relief valve 381 can be mounted on the filter 34 or on the wastewater recycling pipeline 39, as long as the pressure in the wastewater storage pipeline 35 or the wastewater recycling pipeline 39 is relieved to the outside of the system when excessive pressure occurs.

[0080] Household RO water purifiers use a low-pressure reverse osmosis membrane with a working pressure of about 0.8Mpa. Therefore, the pressure on the wastewater side of the RO membrane is about 0.6-0.8Mpa, which can easily discharge clean water and wastewater into the pressure water storage barrel. Since the pressure water storage barrel 33 stores clean water and wastewater at the same time, the clean water and wastewater can transmit pressure in the barrel, so the pressure on the wastewater side 332 and the clean water side 331 will eventually remain consistent. At the same time, since the water purifier is generally equipped with a high-pressure switch 728, it will automatically stop making water when the pressure is high. When the pressure is low, it will automatically start making water again, so the water purification system can automatically control the start and stop, and a stable and safe pressure can be maintained inside at all times.

[0081] The wastewater recovery device using a pressure water storage barrel requires that the pressure on the wastewater side of the RO membrane is greater than the general municipal tap water pressure. The effective volume of the pressure water storage barrel will change according to the size of the difference between the two. When the difference is small, the effective volume is very small, and the function of shifting peaks and filling valleys is lost. In extreme cases, the tap water pressure in some areas may be greater than 0.8MPa, and then it is impossible to achieve automatic drainage during daily use. However, when a water purification storage and wastewater recycling and unified utilization device is adopted, the drainage pressure is no longer indirectly provided by air pressure, but is directly provided by the water pump 723 of the water purifier. When the system uses water, an opening is naturally formed on the water side, and the static pressure of the water is converted into dynamic pressure to flow out. At this time, the pressure on the wastewater side does not need to be greater than the municipal pressure to achieve drainage. Drainage is no longer restricted by municipal pressure, which greatly improves the effective volume of the pressure water storage barrel.

[0082] In extreme case 1, when purified water is continuously used and the pressure water storage tank 33 is emptied, the pressure on the wastewater side 332 will no longer be consistent with the pressure on the clean water side 331, and the pressure will rise rapidly. In this case, if water production continues, the excess wastewater can be discharged through the pressure relief valve. The pressure relief valve can be set to a safety pressure of around 0.8 MPa. This will not affect the RO water purifier's water production and prevent system overpressure. Of course, water production can also be automatically stopped by installing a high-pressure switch, pressure sensor, or other device.

[0083] In extreme case 2, when wastewater is continuously used and the wastewater in the pressure water storage tank 33 is emptied, the pressure on the clean water side rises, and the water purifier will automatically stop making water through the high-pressure switch on the clean water side.

[0084] Furthermore, the pressure water storage tank 33 can be in the form of a diaphragm, a piston, an independent bag, etc., as long as it has multiple cavities, can store more than two fluids, and can transmit pressure between different fluids inside without exchanging substances.

[0085] Furthermore, the RO water purifier's clean water storage and wastewater recycling and unified utilization device also includes a pressure relief line 38 connected to a pressure relief valve 381 or the pressure water storage tank 33 for outward pressure relief, and the pressure relief line 38 is connected to a safe drain point 380. When the pressure in the pressure water storage tank 33 is too high and the pressure relief valve releases pressure, the water can be discharged outward through the pressure relief line 38, for example, to the safe drain point 380. The safe drain point 380 can be any safe location such as a floor drain, a sewer, or a bucket. The pressure relief line 38 can be connected to the pressure relief valve 381 or directly connected to the pressure water storage tank 33, and then the pressure relief valve 381 is installed on the pressure relief line 38. In both cases, the pressure can be discharged outward, for example, to a system or outside the RO water purifier's clean water storage and wastewater recycling and unified utilization device, thereby relieving pressure and draining the water.

[0086] Furthermore, the intersection 378 of the wastewater dedicated water equipment 376 (via the wastewater use pipeline 375) and the wastewater recycling pipeline 39 is located between the downstream of the first one-way valve 371 and the upstream of the second one-way valve 372, for example. Figure 1 As shown, the intersection 378 can be located downstream of the intersection 377 of the wastewater inlet pipeline 37, the wastewater storage pipeline 35, and the wastewater recycling pipeline 39 to achieve the diversion of wastewater into the dedicated wastewater water device 376 or into the second water pipeline 202. (In the present invention, the direction of water flow is from upstream to downstream, for example, the direction of wastewater flow to the first water pipeline or the second water pipeline is from upstream to downstream).

[0087] The utility model also provides an RO water purification system including a clean water storage and waste water recycling and unified utilization device, such as Figure 2 and Figure 3As shown, the RO water purification system includes: an RO water purifier and the above-mentioned RO water purifier's clean water storage and wastewater recycling and unified utilization device 3; wherein the RO water purifier 7 has a raw water inlet pipe 27, a clean water outlet pipe 725, a clean water outlet 720 and a reverse osmosis wastewater discharge pipe 727,

[0088] The raw water inlet pipe 27 is connected to the first water pipe 201 for supplying raw water to the RO water purifier; the first water pipe 201 may be a water supply pipe, such as a tap water supply pipe or an ordinary household water pipe;

[0089] The RO water purification system of the present invention, which includes a device for recycling and utilizing the purified water, stored wastewater, and the like, can have three specific structures in addition to the aforementioned RO water purifier and the device 3 for recycling and utilizing the purified water, stored wastewater, and the like of the RO water purifier:

[0090] (1) The wastewater recycling pipeline 39 is connected to the second water pipeline 202; in this structure, Figure 1 The RO water purification system shown includes the portion connected to the second water pipe 202, but does not include the wastewater dedicated water equipment 376;

[0091] (2) Wastewater dedicated water equipment 376, connected to the wastewater recycling pipeline 39 or the wastewater storage pipeline 35; in this structure, Figure 1 The RO water purification system shown includes a dedicated wastewater water device 376 , but does not include the portion connected to the second water pipe 202 ;

[0092] (3) The RO water purifier system includes both a dedicated wastewater water-using device 376 and a portion connected to the second water pipe 202. In this way, it can not only provide wastewater to the second water pipe 202, and realize the online utilization of wastewater by the kitchen water pipe, the bathroom water pipe, the drinking water supply pipe or the tap water supply pipe, but also realize the water use by wastewater taps, toilets, and other dedicated wastewater water-using device terminals or water-using devices. The two can be used separately at different times and as needed, or they can be used simultaneously to fully utilize the wastewater.

[0093] Further, if Figure 2 and Figure 3 As shown, the present invention also provides an improved RO water purification system, which can also have three specific structures:

[0094] The first specific structure: The difference from the previous RO water purification system is that the RO water purification system further includes: a first water pipe 201 and a second water pipe 202; the first water pipe 201 and the second water pipe 202 can be various water pipes, such as kitchen water pipes, bathroom water pipes, drinking water supply pipes, or tap water supply pipes; the previous RO water purification system does not include the first water pipe 201 and the second water pipe 202; based on the basic configuration that does not include the first water pipe 201 and the second water pipe 202, the present invention adds an optimized configuration that includes the first water pipe 201 and the second water pipe 202, which can achieve modular configuration and overall configuration, making it convenient for users or consumers to purchase a complete set of equipment or RO water purification systems;

[0095] Among them, such as Figure 3 As shown, the first water pipe 201 and the second water pipe 202 can be located upstream and downstream of the same water pipe, respectively. A fourth one-way valve 24 is provided upstream and downstream of the same water pipe to prevent wastewater connected to the wastewater inlet 20 from flowing into the raw water inlet pipe 27.

[0096] In addition, two one-way valves, a third one-way valve 23 and a fourth one-way valve 24, may be installed upstream and downstream of the same water pipe. The third one-way valve 23 controls the one-way flow of raw water from the first water pipe 201 into the primary filtration section 71 or the raw water inlet pipe 27. The fourth one-way valve 24 prevents wastewater connected to the wastewater inlet pipe inlet 20 from flowing into the raw water inlet pipe 27. The third one-way valve 23 can be omitted or not installed, and the main functions of water production and wastewater recovery can still be met.

[0097] The first water pipe 201 and the second water pipe 202 can also be Figure 2 As shown, these are different branches of the same water pipe. For example, the first water pipe 201 is a kitchen water pipe, and the second water pipe 202 is a bathroom water pipe. The first water pipe 201 and the second water pipe 202 have no direct upstream and downstream relationship, and the two can be relatively independent.

[0098] In the first specific structure, the clean water storage wastewater recycling and unified utilization device has a wastewater recycling pipeline 39;

[0099] The raw water inlet pipe 27 is connected to the first water pipe 201;

[0100] The clean water storage and wastewater recycling and unified utilization device introduces wastewater from the wastewater inlet pipe 37 and connects it to the second water pipe 202 through the wastewater recycling pipe 39;

[0101] In the first specific structure, the raw water inlet 710 of the RO water purifier 7 introduces raw water from the raw water outlet 270 on the first water pipe 201 for water production. The RO water purifier 7 undergoes two-stage filtration, for example, through the primary filtration section 71 and the reverse osmosis filtration section 72. Specifically, it can be first filtered through the PP filter element 713, the activated carbon filter element 714, and the ultrafiltration filter element 715, and then filtered through the water pump 723 and the RO filter element 724. The pure water or clean water passes through the clean water outlet pipeline and flows out from the clean water faucet 726 connected to the clean water outlet 720. The wastewater enters the reverse osmosis wastewater discharge pipeline 727. The wastewater inlet pipeline 37 introduces wastewater from the reverse osmosis wastewater discharge pipeline 727. The clean water storage and wastewater recycling and unified utilization device introduces wastewater from the wastewater inlet pipeline 37 and is connected to the second water pipe 202 through the wastewater recycling pipeline 39 for wastewater utilization.

[0102] The second specific structure:

[0103] like Figure 2 As shown, the structure of the above-mentioned improved RO water purification system also includes: a dedicated wastewater water device 376. The dedicated wastewater water device 376 is connected to the wastewater recycling pipeline 39 or the wastewater storage pipeline 35. This structure enables wastewater taps, toilets, and other water terminals or water devices to utilize wastewater directly and quickly.

[0104] The third specific structure:

[0105] like Figure 3 As shown, in addition to the first water pipe 201 and the second water pipe 202 included in the first and second specific structures, it also includes a dedicated wastewater water device 376 and a water outlet 21, which is a more complete RO water purification system. It can connect wastewater to the dedicated wastewater water device 376 for wastewater utilization, and can also directly connect wastewater to daily water devices such as kitchen faucets, taps, or other water devices through the water outlet 21 to achieve efficient and direct utilization of wastewater. This specific structure can better achieve full utilization of wastewater and achieve no wastewater discharge.

[0106] The utility model provides a device for recycling and utilizing the purified water, storage, and wastewater of an RO water purifier, and an RO water purification system including the device. This device recycles and reuses all wastewater generated by the RO water purifier, reducing water resource waste. It also fully automates wastewater utilization, allowing wastewater to be returned to existing water pipes without changing the user's existing water use habits. Furthermore, wastewater can be directly used promptly through dedicated wastewater water equipment. The wastewater recycling process is safe and barrier-free. Furthermore, the device is compact, has a high volume utilization rate, a large purified water flow rate, and stable pressure. The device has the following main advantages:

[0107] 1. The pressure water storage tank 33 and the one-way valve are used in conjunction to cleverly utilize the pressure of the RO water purifier to smoothly discharge the clean water and waste water into the pressure water storage tank 33 for temporary storage. At the same time, the changes in the capacity and pressure on the clean water side and the waste water side of the pressure water storage tank 33 are utilized to deliver the clean water to the water purification equipment, such as the water purification tap 726, and return the waste water to the first water pipe 201 and / or the second water pipe 202. This greatly facilitates users, realizes wastewater recycling and reuse, and plays the role of shifting peak and filling valley, greatly improving the utilization rate of water resources, reducing water waste, and saving energy.

[0108] 2. By utilizing the principle of bidirectional water flow, the wastewater entering the pressure water storage tank 33 is filtered on the wastewater storage pipeline 35, thereby improving the purity of the wastewater. In addition, the filter 34 is backwashed when the wastewater in the pressure water storage tank 33 is recycled through the pipeline to ensure the water quality in the pressure water storage tank 33 and greatly extend the service life of the filter 34.

[0109] 3. The device is designed with a pressure gauge to monitor the pressure in the pressure water storage tank 33 and the water output of the pressure tank. The device is also equipped with a pressure relief valve. When the pressure is too high, water is discharged through the pressure relief pipeline to reduce the pressure in the tank, the RO water purifier, and the entire water system, preventing system overpressure and protecting the pressure water storage tank 33.

[0110] 4. Connecting the wastewater recycling pipeline 39 to the dedicated wastewater water device 376 allows wastewater to be connected to the dedicated wastewater water device 376 for wastewater utilization. Alternatively, the wastewater can be directly connected to a daily water device through the water outlet 21, achieving efficient and direct wastewater utilization. This specific structure can further achieve full utilization of wastewater without wastewater discharge.

[0111] 5. A pressure water storage tank 33 replaces the traditional air pressure water storage tank to store both the wastewater and pure water produced by the RO water purifier. This fully utilizes the tank's capacity, resolving the problem of the air pressure water storage tank in a conventional water purifier only being able to store half the total volume of pure water, resulting in low space utilization and the inability to reduce the size of the water purifier.

[0112] 6. Using a pressure water tank 33 instead of a conventional air pressure water tank to store both clean water and wastewater simultaneously, the pressure on the clean water side is kept consistent with the pressure on the wastewater side, and both are provided by a water pump. This ensures a constant pressure at the outlet of the clean water. This avoids the problem of rapid pressure drop in air pressure tanks as the gas volume increases.

[0113] 7. Use a pressure water storage tank 33 instead of a conventional air-pressure water storage tank to store both clean water and wastewater. Whether using clean water or wastewater, the water pump activates, ensuring a more plentiful supply. For example, at a 1:1 wastewater-to-pure water ratio, the pure water supply doubles. This allows for the use of smaller pumps and RO membranes, achieving greater flow rates. This reduces costs and equipment size. Furthermore, since all wastewater is recycled without waste, there's no need to pursue a high wastewater-to-pure water ratio. For the same RO membrane, a higher wastewater-to-pure water ratio shortens its lifespan. Therefore, reducing the wastewater-to-pure water ratio can extend the lifespan of the RO membrane.

[0114] 8. Using a pressure water tank 33 instead of a conventional air-pressure water tank to store both clean water and wastewater simultaneously, the pressure for wastewater discharge is provided directly by a water pump, rather than indirectly by the air-pressure water tank. Therefore, when using wastewater, the pressure of the municipal tap water in the first water pipe 201 and / or the second water pipe 202 is no longer constrained. The space in the pressure water tank can be fully utilized, significantly improving volume utilization.

[0115] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. The various components of the present invention may be combined with each other without conflict, and any equivalent changes and modifications made by a person skilled in the art without departing from the concept and principles of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A device for recycling and utilizing purified water stored in an RO water purifier, characterized in that: The RO water purifier's purified water storage and wastewater recycling and unified utilization device (3) is connected to the RO water purifier (7), and the RO water purifier (7) has a reverse osmosis wastewater discharge pipeline (727) and a purified water outlet pipeline (725); The clean water storage and waste water recycling and unified utilization device of the RO water purifier comprises: a pressure water storage barrel (33), a waste water access pipeline (37), a waste water storage pipeline (35), a waste water recycling pipeline (39), a clean water storage pipeline (36) and a second one-way valve (372); The wastewater inlet pipe (37) is connected to the reverse osmosis wastewater discharge pipe (727); The wastewater storage pipeline (35) is connected to the wastewater access pipeline (37); The clean water storage pipeline (36) is connected to the clean water outlet pipeline (725); A pressure water storage tank (33), one side of which is connected to the wastewater storage pipeline (35) and the other side of which is connected to the clean water storage pipeline (36); The wastewater recycling pipeline (39) is connected to the wastewater storage pipeline (35) and the wastewater access pipeline (37); or the wastewater recycling pipeline (39) is connected to the pressure water storage tank (33); A second one-way valve (372) for controlling the flow of water from the pressure water storage tank (33) and / or the wastewater inlet pipeline (37) to the wastewater recycling pipeline (39) is provided on the wastewater recycling pipeline (39); in, The wastewater recycling pipeline (39) is connected to the second water pipeline (202); and / or the wastewater dedicated water equipment (376).

2. The RO water purifier clean water storage wastewater recycling and unified utilization device according to claim 1, characterized in that: The RO water purifier's purified water storage and wastewater recycling and unified utilization device further comprises: a filter (34) provided on the wastewater storage pipeline (35).

3. The RO water purifier's purified water storage wastewater recycling and unified utilization device according to claim 1, characterized in that: The RO water purifier's purified water storage wastewater recycling and unified utilization device further comprises: a pressure gauge (382) connected to the pressure water storage barrel (33).

4. The device for recycling and utilizing clean water storage wastewater of an RO water purifier according to claim 1 or claim 2, characterized in that: The clean water storage and wastewater recycling and unified utilization device of the RO water purifier further comprises: a pressure relief valve (381) for outward pressure relief, which is arranged on the pressure water storage barrel (33), the filter (34), the wastewater storage pipeline (35), or the wastewater recycling pipeline (39).

5. The device for recycling and utilizing purified water stored in RO water purifier according to claim 1, characterized in that: The pressure water storage barrel (33) has multiple cavities and adopts a diaphragm, a piston, and an independent bag method to store two or more fluids. The pressure is transmitted between different fluids inside, but the container does not cause material exchange.

6. The RO water purifier wastewater recycling and unified utilization device according to claim 4, characterized in that: The RO water purifier's purified water storage and wastewater recycling and unified utilization device further comprises: a pressure relief pipeline (38) connected to a pressure relief valve (381), wherein the pressure relief pipeline (38) is connected to a safety drainage point (380).

7. The RO water purifier wastewater recycling and unified utilization device according to claim 1, characterized in that: The RO water purifier's purified water storage and wastewater recycling and unified utilization device further comprises: a first one-way valve (371) for controlling the direction of water flow from the wastewater access pipeline (37) to the pressure water storage tank (33) and the wastewater recycling pipeline (39), and is arranged on the wastewater access pipeline (37).

8. An RO water purification system including a device for recycling and utilizing purified water, storage wastewater, characterized in that: The RO water purification system comprises: an RO water purifier and a device for recycling and utilizing the purified water stored in the RO water purifier according to any one of claims 1 to 7; wherein the RO water purifier (7) has a raw water inlet pipe (27), a purified water outlet pipe (725) and a reverse osmosis wastewater discharge pipe (727). The raw water inlet pipeline (27) is connected to the first water pipeline (201); The wastewater recycling pipeline (39) is connected to the second water pipeline (202) and / or the wastewater dedicated water equipment (376); The clean water storage pipeline (36) is connected to the clean water outlet pipeline (725) and the clean water faucet (726).

9. The RO water purification system comprising the clean water storage and wastewater recycling and unified utilization device according to claim 8, characterized in that: The RO water purification system further comprises: a first water pipe (201) and a second water pipe (202); The clean water storage and wastewater recycling and unified utilization device has a wastewater recycling pipeline (39); The clean water storage and wastewater recycling and unified utilization device introduces wastewater from the wastewater access pipeline (37) and connects it to the second water pipe (202) through the wastewater recycling and utilization pipeline (39); and / or the clean water storage and wastewater recycling and unified utilization device introduces wastewater from the wastewater access pipeline (37), the wastewater dedicated water equipment (376), and connects it to the wastewater recycling and utilization pipeline (39) or the wastewater storage pipeline (35); The RO water purification system further comprises: a water outlet (21) provided on the second water pipe (202) and connected to daily water equipment.

10. The RO water purification system comprising the clean water storage and wastewater recycling and unified utilization device according to claim 9, characterized in that: The first water pipe (201) and the second water pipe (202) are respectively located upstream and downstream of the same water pipe. The RO water purification system further comprises: a fourth one-way valve (24) provided on the first water pipe (201) or the second water pipe (202) to prevent wastewater in the wastewater recycling pipeline (39) from flowing back into the raw water inlet pipeline (27).

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