Independent concentrated water reverse osmosis device based on full membrane water treatment system

Abstract

This invention discloses an independent concentrated water reverse osmosis device based on a full-membrane water treatment system, comprising: a concentrated water storage tank, the concentrated water storage tank including a tank body, a partition plate disposed within the tank body for dividing the internal space of the tank body into an upper chamber and a lower chamber, a first T-connector pipe connected to the upper chamber disposed at the bottom of the partition plate, and an adjustment mechanism disposed at the top of the tank body for adjusting the direction of the liquid outlet end of the first T-connector pipe. This invention, by setting up a concentrated water storage tank to supply the concentrated water to be treated to the reverse osmosis water purifier, and simultaneously collecting further concentrated concentrated water for backwashing of the pretreatment system, allows the concentrated water storage tank to quickly change the internal concentrated water flow direction when the reverse osmosis water purifier becomes clogged, enabling the reverse osmosis water purifier to be repaired independently without affecting the normal operation of other equipment in the full-membrane water treatment system, thereby reducing the adverse effects of concentrated water reverse osmosis equipment failure on the full-membrane water treatment system.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, and in particular to an independent concentrate reverse osmosis device based on a full-membrane water treatment system. Background Technology

[0002] The all-membrane water treatment system includes a pretreatment system, a first-stage reverse osmosis system, a second-stage reverse osmosis system, and an EDI system. During normal operation, this system generates concentrate, which is required for backwashing of the pretreatment system to maintain normal operation. A conventional first-stage reverse osmosis system is designed with a 75% recovery rate, producing approximately 25% concentrate. Directly using the concentrate from the first-stage reverse osmosis system for backwashing easily generates a large amount of wastewater, which is inconsistent with the current concept of "green and environmentally friendly" practices.

[0003] To address the aforementioned issues, existing technologies employ a concentrate reverse osmosis unit to treat the concentrate produced by the primary reverse osmosis system, allowing the treated water to enter the secondary reverse osmosis system. The further concentrated concentrate is then used for backwashing. While this method can improve water resource utilization and reduce wastewater production, it also presents challenges when the equipment used for concentrate reverse osmosis malfunctions. In such cases, the discharged concentrate cannot enter the concentrate reverse osmosis unit or be used for backwashing the pretreatment system, thus affecting the normal operation of the entire membrane-based water treatment system. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing an independent concentrate reverse osmosis device based on a full-membrane water treatment system, thereby reducing the adverse effects of concentrate reverse osmosis equipment failure on the full-membrane water treatment system.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an independent concentrate reverse osmosis device based on a full-membrane water treatment system, comprising:

[0006] A concentrated water storage tank includes a tank body. A partition plate is provided inside the tank body to divide the internal space of the tank body into an upper chamber and a lower chamber. A first three-way pipe connected to the upper chamber is provided at the bottom of the partition plate. An adjustment mechanism is provided at the top of the tank body to adjust the direction of the liquid outlet end of the first three-way pipe. The adjustment mechanism is provided with a trigger mechanism to activate the adjustment mechanism when the pressure exceeds a threshold.

[0007] A high-pressure pump, wherein the inlet end of the high-pressure pump is connected to a first three-way pipe, and the outlet end of the high-pressure pump is provided with a second three-way pipe connected to a triggering mechanism;

[0008] A reverse osmosis water purifier, wherein the inlet end of the reverse osmosis water purifier is connected to a second three-way pipe, and the concentrate return end of the reverse osmosis water purifier is provided with a return pipe connected to the lower chamber;

[0009] A water inlet pipe is provided at the top of the tank and is connected to the upper chamber.

[0010] A backwash pipe is provided at the bottom of the tank and is connected to the lower chamber.

[0011] Furthermore, the bottom cross-sectional shape of the tank and the cross-sectional shape of the partition plate are both funnel-shaped, wider at the top and narrower at the bottom. The first tee pipe is located at the lowest point of the partition plate, and the first tee pipe is a positive tee pipe.

[0012] Furthermore, the adjustment mechanism includes a cover disposed on the top of the tank, an adjustment head rotatably disposed inside the cover, two spirally upward arc-shaped grooves formed on the adjustment head, a first spring rotatably disposed inside the adjustment head, a locking head capable of moving up and down inside the cover being disposed at the top of the first spring, a side plate mirror disposed on the locking head, a ball bearing inserted into the arc-shaped groove being disposed on the side plate, a locking pin slidably disposed inside the locking head, a second spring being disposed between the locking pin and the locking head, a connecting rod inserted into the upper chamber being disposed at the bottom of the adjustment head, a valve core inserted into the first three-way pipe for separating the two liquid outlet ends of the first three-way pipe being disposed at the bottom of the connecting rod, an L-shaped flow channel being formed inside the valve core, and a drain hole connected to the L-shaped flow channel being formed at one end of the valve core located in the upper chamber;

[0013] When the second spring is in its natural state, the locking pin engages with the cover and the ball is at the lowest point of the arc-shaped groove;

[0014] When the ball is at the lowest point of the arc-shaped groove, the first spring is compressed and the upper chamber is connected to the high-pressure pump. When the ball is at the highest point of the arc-shaped groove, the upper chamber is connected to the lower chamber.

[0015] Furthermore, the triggering mechanism includes a connecting pipe disposed on the cover, the end of the connecting pipe away from the cover being connected to a second three-way pipe, an annular sleeve disposed inside the connecting pipe, a tension spring disposed at the end of the annular sleeve near the cover, and a push rod disposed at the end of the tension spring away from the annular sleeve for pushing the locking pin to release from the locking state with the cover, and a sealing ring being sleeved on the push rod.

[0016] Furthermore, the annular sleeve is threadedly connected to the connecting pipe, and the annular sleeve has a hexagonal groove for connecting a hexagonal wrench.

[0017] Furthermore, the second three-way pipe is equipped with an exhaust valve at one end near the connecting pipe, which allows air to be discharged from the pipe while preventing liquid from being discharged.

[0018] Furthermore, the top of the locking head is provided with a reset handle that penetrates through the cover and extends to the top of the cover.

[0019] Furthermore, the top of the enclosure is provided with an alarm mechanism for issuing an alarm after the locking head rises; the alarm mechanism includes a bracket on the top of the enclosure, on which an audible and visual warning light and a tactile switch are provided. The tactile switch is located directly above the reset handle. After the locking head rises, pushing the reset handle presses the tactile switch, causing the tactile switch to send a trigger signal to the controller.

[0020] The beneficial effects of this invention are reflected in:

[0021] This invention supplies concentrated water to a reverse osmosis water purifier via a concentrated water storage tank, while simultaneously collecting further concentrated concentrated water for backwashing the pretreatment system. In the event of blockage in the reverse osmosis water purifier, the concentrated water storage tank can quickly change the flow direction of the internal concentrated water, allowing the reverse osmosis water purifier to be repaired independently without affecting the normal operation of other equipment in the all-membrane water treatment system. This achieves the goal of minimizing the adverse effects of concentrated water reverse osmosis equipment failure on the all-membrane water treatment system. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a partial cross-sectional view of the concentrate storage tank of the present invention;

[0024] Figure 3 This is a partial exploded view of the adjusting mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram showing the positions of the adjusting mechanism and the first three-way pipe of the present invention;

[0026] Figure 5 This is an exploded view of the triggering mechanism of the present invention;

[0027] Figure 6 for Figure 2 A magnified view of a portion of point A shown;

[0028] Figure 7 This is a system diagram of a full membrane water treatment system.

[0029] In the picture:

[0030] 1. Concentrate storage tank; 11. Tank body; 12. Divider plate; 13. First tee pipe; 14. Adjustment mechanism; 1401. Cover; 1402. Adjustment head; 1403. Arc-shaped slide groove; 1404. First spring; 1405. Locking head; 1406. Side plate; 1407. Ball bearing; 1408. Locking pin; 1409. Second spring; 1410. Connecting rod; 1411. Valve core; 1412. L-shaped flow channel; 1413. Drain hole; 15. Triggering mechanism; 151. Connecting pipe; 152. Annular sleeve; 153. Tension spring; 154. Top rod; 155. Sealing ring; 2. High-pressure pump; 3. Second tee pipe; 4. Reverse osmosis water purifier; 5. Return water pipe; 6. Inlet water pipe; 7. Backwash pipe; 8. Reset handle; 9. Alarm mechanism. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-7 This invention discloses an independent concentrate reverse osmosis device based on a full-membrane water treatment system, comprising:

[0033] A concentrated water storage tank 1 includes a tank body 11. A partition plate 12 is provided inside the tank body 11 to divide the internal space of the tank body 11 into an upper chamber and a lower chamber. A first three-way pipe 13 connected to the upper chamber is provided at the bottom of the partition plate 12. An adjustment mechanism 14 is provided at the top of the tank body 11 to adjust the direction of the liquid outlet end of the first three-way pipe 13. A triggering mechanism 15 is provided on the adjustment mechanism 14 to trigger the operation of the adjustment mechanism 14 when the pressure exceeds a threshold.

[0034] High pressure pump 2, the inlet end of high pressure pump 2 is connected to the first three-way pipe 13, and the outlet end of high pressure pump 2 is provided with a second three-way pipe 3 connected to the triggering mechanism 15.

[0035] The reverse osmosis water purifier 4 has its inlet end connected to the second three-way pipe 3, and its concentrate return end is equipped with a return pipe 5 connected to the lower chamber.

[0036] Water inlet pipe 6 is located at the top of tank body 11 and is connected to the upper chamber.

[0037] Backwash pipe 7 is located at the bottom of tank 11 and is connected to the lower chamber.

[0038] This invention involves inputting the concentrated water generated by the primary reverse osmosis system into the upper chamber of the tank 11 via the inlet pipe 6. When the reverse osmosis water purifier 4 is operating normally, both the triggering mechanism 15 and the regulating mechanism 14 are in standby mode. The concentrated water in the upper chamber flows to the high-pressure pump 2 via the first three-way pipe 13, and is then pumped into the reverse osmosis water purifier 4 for treatment. The treated clean water enters the secondary reverse osmosis system, while the further concentrated water enters the lower chamber for storage via the return pipe 5. When the pretreatment system needs to be flushed, the concentrated water stored in the lower chamber can be extracted. If the reverse osmosis water purifier 4 becomes clogged, the continued pumping of water by the high-pressure pump 2 will increase the water pressure in the second three-way pipe 3. When the pressure exceeds a threshold, the triggering mechanism 15 triggers the regulating mechanism 14 to operate. The regulating mechanism 14 changes the flow direction of the first three-way pipe 13, allowing the water in the upper chamber to flow directly into the lower chamber for storage. This ensures that both the pretreatment system backwashing procedure and the primary reverse osmosis system operate normally, thereby reducing the adverse effects of concentrated water reverse osmosis equipment failure on the all-membrane water treatment system.

[0039] In one embodiment, the bottom cross-sectional shape of the tank body 11 and the cross-sectional shape of the partition plate 12 are both funnel-shaped with a wider top and a narrower bottom. The first tee pipe 13 is located at the lowest point of the partition plate 12 and is a positive tee pipe.

[0040] This design allows as much of the concentrated water and impurities in the concentrated water in the upper chamber as possible to enter the first three-way pipe 13, reducing the cleaning frequency of the tank 11.

[0041] In one embodiment, the adjusting mechanism 14 includes a cover 1401 disposed on the top of the tank body 11. An adjusting head 1402 is rotatably disposed inside the cover 1401. The adjusting head 1402 has two spirally upward arc-shaped grooves 1403. A first spring 1404 is rotatably disposed inside the adjusting head 1402. A locking head 1405 that can move up and down inside the cover 1401 is disposed at the top of the first spring 1404. A side plate 1406 is mirror-displayed on the locking head 1405. A ball bearing 1 is disposed on the side plate 1406 and inserted into the arc-shaped groove 1403. 407, a locking pin 1408 is slidably provided inside the locking head 1405, and a second spring 1409 is provided between the locking pin 1408 and the locking head 1405. A connecting rod 1410 is provided at the bottom of the adjusting head 1402 and inserted into the upper chamber. A valve core 1411 is provided at the bottom of the connecting rod 1410 and inserted into the first three-way pipe 13 to separate the two liquid outlet ends of the first three-way pipe 13. An L-shaped flow channel 1412 is opened inside the valve core 1411, and a drain hole 1413 connected to the L-shaped flow channel 1412 is opened at one end of the valve core 1411 located in the upper chamber.

[0042] When the second spring 1409 is in its natural state, the locking pin 1408 engages with the cover 1401 and the ball 1407 is at the lowest point of the arc-shaped groove 1403.

[0043] When the ball bearing 1407 is at the lowest point of the arc-shaped slide groove 1403, the first spring 1404 is in a compressed state and the upper chamber is connected to the high-pressure pump 2. When the ball bearing 1407 is at the highest point of the arc-shaped slide groove 1403, the upper chamber is connected to the lower chamber.

[0044] This design ensures that when the locking pin 1408 is engaged with the cover 1401, the concentrated water in the upper chamber can only enter the L-shaped flow channel 1412 through the drain hole 1413, and then flow through the L-shaped flow channel 1412 to the side connected to the first three-way pipe 13 and the high-pressure pump 2. When the locking pin 1408 is disengaged from the cover 1401, the first spring 1404 pushes the locking head 1405 upward. During the upward movement of the locking head 1405, the ball bearing 1407 moves upward synchronously. Under the restriction of the arc-shaped sliding groove 1403, the adjusting head 1402 rotates, which in turn drives the valve core 1411 to rotate. This allows the concentrated water in the upper chamber to directly enter the L-shaped flow channel 1412 through the drain hole 1413 and flow into the lower chamber, so that the reverse osmosis water purifier 4 no longer participates in the water treatment process of the whole membrane water treatment system, making it convenient for maintenance personnel to inspect and repair the reverse osmosis water purifier 4.

[0045] In one embodiment, the triggering mechanism 15 includes a connecting pipe 151 disposed on the cover 1401. One end of the connecting pipe 151 away from the cover 1401 is connected to the second three-way pipe 3. An annular sleeve 152 is disposed inside the connecting pipe 151. A tension spring 153 is disposed at one end of the annular sleeve 152 near the cover 1401. A push rod 154 is disposed at one end of the tension spring 153 away from the annular sleeve 152 for pushing the locking pin 1408 to release it from the locking state with the cover 1401. A sealing ring 155 is sleeved on the push rod 154.

[0046] This design uses the increased pressure inside the second three-way pipe 3 when the reverse osmosis water purifier 4 is blocked as the trigger condition for the operation of the regulating mechanism 14, so that the regulating mechanism 14 can respond to the fault of the reverse osmosis water purifier 4 in a timely manner and improve the operational stability of the whole membrane water treatment system.

[0047] In one embodiment, the annular sleeve 152 is threadedly connected to the connecting pipe 151. The annular sleeve 152 has a hexagonal groove for connecting a hexagonal wrench, so that the operator can adjust the position of the annular sleeve 152 inside the connecting pipe 151 according to specific needs. When the installation position of the annular sleeve 152 is changed, the threshold value when the triggering mechanism 15 triggers the adjustment mechanism 14 to operate can be changed, thereby improving the operational flexibility of the triggering mechanism 15.

[0048] In one embodiment, the end of the second three-way pipe 3 near the connecting pipe 151 is provided with an exhaust valve that allows air to be discharged from the pipe but not liquid, so that some air in the second three-way pipe 3 can be discharged through the exhaust valve, thus avoiding adverse effects on the normal operation of the triggering mechanism 15.

[0049] In one embodiment, the top of the locking head 1405 is provided with a reset handle 8 that penetrates through the cover 1401 and extends to the top of the cover 1401. With this design, after the reverse osmosis water purifier 4 is repaired, the operator can press down the reset handle 8 to restore the adjustment mechanism 14 to the state before the triggering mechanism 15 was triggered, so that the reverse osmosis water purifier 4 can be reconnected to the whole membrane water treatment system.

[0050] In one embodiment, the top of the cover 1401 is provided with an alarm mechanism 9 for issuing an alarm after the locking head 1405 rises; the alarm mechanism 9 includes a bracket provided on the top of the cover 1401, and an audible and visual warning light and a tactile switch are provided on the bracket. The tactile switch is located directly above the reset handle 8. After the locking head 1405 rises, it pushes the reset handle 8 to press the tactile switch, causing the tactile switch to send a trigger signal to the controller.

[0051] With this design, after the adjustment mechanism 14 is triggered by the triggering mechanism 15, the locking head 1405 rises and simultaneously drives the reset handle 8 to rise, so that the reset handle 8 presses the tactile switch. After the controller receives the signal from the tactile switch, it can promptly notify the maintenance personnel through the sound and light warning lights, ensuring that the reverse osmosis water purifier 4 can be repaired in a timely manner.

[0052] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0053] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0054] Additionally, "multiple" refers to two or more.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stand-alone concentrated water reverse osmosis device based on a full-membrane water treatment system, characterized in that, include: A concentrated water storage tank (1) includes a tank body (11). The tank body (11) is provided with a partition plate (12) for dividing the internal space of the tank body (11) into an upper chamber and a lower chamber. The bottom of the partition plate (12) is provided with a first three-way pipe (13) connected to the upper chamber. The top of the tank body (11) is provided with an adjustment mechanism (14) that can adjust the direction of the liquid outlet of the first three-way pipe (13). The adjustment mechanism (14) is provided with a triggering mechanism (15) that can trigger the operation of the adjustment mechanism (14) when the pressure exceeds a threshold. High pressure pump (2), the inlet end of the high pressure pump (2) is connected to the first three-way pipe (13), and the outlet end of the high pressure pump (2) is provided with a second three-way pipe (3) connected to the triggering mechanism (15). The reverse osmosis water purifier (4) has its inlet end connected to the second three-way pipe (3) and its concentrated water return end is provided with a return water pipe (5) connected to the lower chamber. Water inlet pipe (6), the water inlet pipe (6) is located at the top of the tank body (11), and the water inlet pipe (6) is connected to the upper chamber; A backwash pipe (7) is provided at the bottom of the tank body (11) and is connected to the lower chamber; The adjusting mechanism (14) includes a cover (1401) disposed on the top of the tank (11). An adjusting head (1402) is rotatably disposed inside the cover (1401). Two spirally upward arc-shaped grooves (1403) are provided on the adjusting head (1402). A first spring (1404) is rotatably disposed inside the adjusting head (1402). A locking head (1405) that can move up and down inside the cover (1401) is provided at the top of the first spring (1404). A side plate (1406) is mirror-displayed on the locking head (1405). A ball bearing (1407) is provided on the side plate (1406) and inserted into the arc-shaped groove (1403). The locking head (1405) is slidably provided with a locking pin (1408), and a second spring (1409) is provided between the locking pin (1408) and the locking head (1405). The bottom of the adjusting head (1402) is provided with a connecting rod (1410) that is inserted into the upper chamber. The bottom of the connecting rod (1410) is provided with a valve core (1411) that is inserted into the first three-way pipe (13) to separate the two liquid outlet ends of the first three-way pipe (13). The valve core (1411) is provided with an L-shaped flow channel (1412). The end of the valve core (1411) located in the upper chamber is provided with a drain hole (1413) that is connected to the L-shaped flow channel (1412). When the second spring (1409) is in its natural state, the locking pin (1408) engages with the cover (1401) and the ball (1407) is at the lowest point of the arc-shaped groove (1403); When the ball (1407) is at the lowest point of the arc-shaped groove (1403), the first spring (1404) is in a compressed state and the upper chamber is connected to the high-pressure pump (2). When the ball (1407) is at the highest point of the arc-shaped groove (1403), the upper chamber is connected to the lower chamber.

2. The independent concentrate reverse osmosis device based on a full-membrane water treatment system according to claim 1, characterized in that: The bottom cross-sectional shape of the tank (11) and the cross-sectional shape of the partition plate (12) are both funnel-shaped with a wider top and a narrower bottom. The first three-way pipe (13) is located at the lowest point of the partition plate (12). The first three-way pipe (13) is a positive three-way pipe.

3. The independent concentrate reverse osmosis device based on a full-membrane water treatment system according to claim 1, characterized in that: The triggering mechanism (15) includes a connecting pipe (151) disposed on the cover (1401). One end of the connecting pipe (151) away from the cover (1401) is connected to the second three-way pipe (3). An annular sleeve (152) is disposed inside the connecting pipe (151). A tension spring (153) is disposed at one end of the annular sleeve (152) near the cover (1401). A push rod (154) is disposed at one end of the tension spring (153) away from the annular sleeve (152) for pushing the locking pin (1408) to release the locking state from the cover (1401). A sealing ring (155) is sleeved on the push rod (154).

4. The independent concentrate reverse osmosis device based on a full-membrane water treatment system according to claim 3, characterized in that: The annular sleeve (152) is threadedly connected to the connecting pipe (151), and the annular sleeve (152) has a hexagonal groove for connecting a hexagonal wrench.

5. The independent concentrate reverse osmosis device based on a full-membrane water treatment system according to claim 3, characterized in that: The second three-way pipe (3) is provided with an exhaust valve at one end near the connecting pipe (151) that allows air to be discharged from the pipe but not liquid.

6. The independent concentrate reverse osmosis device based on a full-membrane water treatment system according to claim 1, characterized in that: The top of the locking head (1405) is provided with a reset handle (8) that penetrates through the cover (1401) and extends to the top of the cover (1401).

7. The independent concentrate reverse osmosis device based on a full-membrane water treatment system according to claim 6, characterized in that: The top of the cover (1401) is provided with an alarm mechanism (9) for issuing an alarm after the locking head (1405) rises; the alarm mechanism (9) includes a bracket provided on the top of the cover (1401), and the bracket is provided with an audible and visual warning light and a tactile switch. The tactile switch is located directly above the reset handle (8). After the locking head (1405) rises, it pushes the reset handle (8) to press the tactile switch so that the tactile switch sends a trigger signal to the controller.

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