Reverse osmosis device for high-concentration wastewater in laboratory

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a reverse osmosis device for high-concentration wastewater in a laboratory, which comprises front and rear supporting legs, a first connecting pipe and the like, the first connecting pipe is connected between the upper parts of the front and rear supporting legs, a supporting pipe is connected in the first connecting pipe, and the lower side of the supporting pipe is communicated with the first connecting pipe; a reverse osmosis membrane is connected to the outer side of the supporting pipe, and a pressurizing mechanism capable of increasing internal pressure is arranged on the first connecting pipe. The lifting frame moves downwards to scrape impurities on a reverse osmosis membrane, meanwhile, the pressure intensity in the first connecting pipe is increased, negative pressure is generated in the feeding pipe, waste water is sucked into the first connecting pipe, when the first connecting pipe is pressurized, the waste water can be sucked into the first connecting pipe, meanwhile, the reverse osmosis membrane can be cleaned, and the waste water recycling efficiency is improved. The reverse osmosis quality and efficiency of the wastewater are improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a reverse osmosis device for treating high-concentration laboratory wastewater. Background Technology

[0002] High-concentration laboratory wastewater refers to pollutants generated in laboratories during scientific research, testing, or teaching processes. Its concentration is significantly higher than that of ordinary domestic sewage or industrial wastewater. It is usually characterized by complex composition, high toxicity, strong corrosiveness, and difficulty in degradation. Existing technologies mostly use reverse osmosis devices for wastewater treatment to properly dispose of it.

[0003] These devices utilize reverse osmosis technology, employing the selective permeation principle of a semi-permeable membrane to remove organic matter, inorganic matter, heavy metals, microorganisms, or other special pollutants that may be present in water. Specifically, a high-pressure pump sends high-concentration wastewater into the reverse osmosis membrane module, allowing pure water to pass through the membrane and separate from the wastewater, thus purifying the water. While these devices can effectively separate wastewater, in practice, the reverse osmosis membrane module is difficult to clean. After prolonged filtration, various impurities in the wastewater easily adhere to the outside of the reverse osmosis membrane, leading to a decrease in the quality and efficiency of the reverse osmosis process.

[0004] Therefore, a reverse osmosis device for wastewater treatment has now been developed that can pump wastewater into the first connecting pipe when it is pressurized, and at the same time clean the reverse osmosis membrane to avoid affecting the quality and efficiency of the reverse osmosis of the wastewater. Summary of the Invention

[0005] In order to overcome the shortcomings of existing technologies, such as the inconvenience of cleaning reverse osmosis membrane modules and the tendency of various impurities in wastewater to adhere to the outside of the reverse osmosis membrane after long-term filtration, which leads to a reduction in the quality and efficiency of wastewater reverse osmosis, this invention provides a reverse osmosis device for wastewater treatment that can draw wastewater into the first connecting pipe when pressurized, and at the same time clean the reverse osmosis membrane, so as to avoid affecting the quality and efficiency of wastewater reverse osmosis.

[0006] The technical solution is: a reverse osmosis device for high-concentration laboratory wastewater, comprising a support foot, a first connecting pipe, a support pipe, a reverse osmosis membrane, and a pressurizing mechanism. The support foot has two parts, front and back, and the first connecting pipe is connected between the upper parts of the support foot. The support pipe is connected inside the first connecting pipe, and the lower side of the support pipe is connected to the first connecting pipe. The reverse osmosis membrane is connected to the outside of the support pipe, and the pressurizing mechanism is provided on the first connecting pipe to increase the internal pressure.

[0007] Furthermore, mounting holes are provided on both the left and right sides of the support legs.

[0008] Furthermore, the pressurizing mechanism includes an electric push rod, a lifting frame, a lifting cover, a feed pipe, a first one-way valve, and a second one-way valve. The electric push rod is connected to the right side of the first connecting pipe, and the lifting frame is connected to the telescopic end of the electric push rod. The lifting frame is in contact with the reverse osmosis membrane and is slidably connected to the first connecting pipe. The lifting cover is slidably connected to the lower part of the first connecting pipe, and the feed pipe is slidably connected to the left side of the lifting frame. The feed pipe is connected to the first connecting pipe, and the first one-way valve is connected to the lower part of the feed pipe. The second one-way valve is connected to the lower part of the first connecting pipe. When the electric push rod is activated, the lifting frame moves downward inside the first connecting pipe, which increases the pressure inside the first connecting pipe and creates a negative pressure inside the feed pipe. This draws wastewater into the first connecting pipe through the first one-way valve. As the lifting frame moves downward, it scrapes off impurities from the surface of the reverse osmosis membrane.

[0009] Furthermore, it also includes an opening mechanism, which includes a damper, a connecting arm, a first spring, and a lever. The damper is slidably connected to the upper right side of the lifting frame, and the connecting arms are connected to the front and rear sides of the lower part of the damper. The first spring is connected between the damper and the lifting frame. The levers are rotatably connected to the front and rear sides of the lower part of the lifting frame. The connecting arms are all in a pressing fit with the adjacent levers. The levers are all movably connected to the lifting cover. When the lifting frame moves downward, it drives the damper to move downward, which in turn drives the connecting arms to move downward. After the connecting arms move downward a certain distance, they press the levers to rotate, causing the levers to lift the lifting cover upward, thereby opening the first connecting pipe.

[0010] Furthermore, it also includes a negative pressure mechanism, which includes a piston tube, a first piston rod, and a connecting pipe. The piston tube is connected to the upper left side of the first connecting pipe, and the first piston rod is slidably connected inside the piston tube. Both the front and rear parts of the first piston rod are connected to the lifting frame. A connecting pipe is connected between the piston tube and the support tube. When the lifting frame moves downward, it drives the first piston rod to move downward, causing negative pressure to be generated inside the piston tube. Negative pressure is generated inside the support tube through the connecting pipe.

[0011] Furthermore, it also includes an adjustment mechanism, which includes an adjustment screw, a limit bracket, and a slide rod. The adjustment screw is rotatably connected to the upper right side of the lifting frame. The adjustment screw is located to the right of the damper. The limit bracket is threadedly connected to the adjustment screw. The limit bracket is located under the connecting arm. Slide rods are connected to the upper front and rear sides of the limit bracket. The slide rods are slidably connected to the adjacent connecting arm. Rotating the adjustment screw moves the limit bracket, which in turn moves the slide rod, causing the connecting arm to move accordingly, thus adjusting the timing of the connecting arm triggering the lever.

[0012] Furthermore, a knob is provided on the upper side of the adjusting screw.

[0013] Furthermore, it also includes a buffer mechanism, which includes a support sleeve, a second piston rod, and a second spring. The upper right part of the lifting frame is connected to the support sleeve, and the second piston rod is slidably connected to the support sleeve. The second piston rod is slidably connected to the lifting frame, and the second spring is connected between the second piston rod and the support sleeve. When the pressure in the first connecting pipe reaches its limit, the internal pressure squeezes the second piston rod to move upward, and the second spring is compressed and contracted.

[0014] Furthermore, it also includes a monitoring mechanism, which includes a second connecting pipe and a water quality analyzer. The second connecting pipe is connected to the lower side of the first connecting pipe, and the water quality analyzer is connected to the right side of the second connecting pipe. After pure water flows out from the second one-way valve, it enters the second connecting pipe, so that the water quality analyzer can monitor the water quality of the pure water.

[0015] Furthermore, flanges are provided on both the upper and lower sides of the second connecting pipe.

[0016] The beneficial effects are as follows: 1. The present invention uses a combination of lifting frame and lifting cover to scrape off impurities on the reverse osmosis membrane by lowering the lifting frame, while increasing the pressure inside the first connecting pipe to create negative pressure in the feed pipe, thus drawing wastewater into the first connecting pipe. This achieves the goal of pumping wastewater into the first connecting pipe while simultaneously cleaning the reverse osmosis membrane, overcoming the technical problem of inconvenient cleaning of reverse osmosis membrane components in the prior art, and realizing the technical effect of improving the quality and efficiency of wastewater reverse osmosis.

[0017] 2. This invention achieves the effect of automatically opening the first connecting pipe by rotating the lever after the connecting arm moves down a certain distance, causing the lever to lift the lifting cover upward and open the first connecting pipe.

[0018] 3. In this invention, as the lifting frame moves downward, it drives the first piston rod to move downward, which generates negative pressure inside the piston tube. Through the connecting pipe, negative pressure is generated inside the support tube, thereby accelerating the speed at which pure water passes through the reverse osmosis membrane and improving wastewater treatment efficiency.

[0019] 4. This invention achieves the effect of adapting to the treatment of wastewater of different concentrations by rotating the adjusting screw according to the wastewater concentration, causing the limiting frame to move, which in turn moves the sliding rod, causing the connecting arm to move accordingly, and adjusting the triggering time of the connecting arm lever.

[0020] 5. The present invention achieves the effect of relieving the pressure inside the first connecting pipe and preventing damage to the internal items by causing the second piston rod to move upward when the pressure inside the first connecting pipe reaches its limit, and the second spring to be compressed and contracted.

[0021] 6. In this invention, pure water flows out from the second one-way valve and enters the second connecting pipe, allowing the water quality analyzer to monitor the changes in the pure water quality in real time, thus achieving the effect of avoiding incomplete wastewater separation caused by damage to the reverse osmosis membrane. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a cross-sectional view of the present invention.

[0024] Figure 3 This is a three-dimensional structural diagram of the pressurization mechanism of the present invention.

[0025] Figure 4 This is a cross-sectional view of the pressurization mechanism of the present invention.

[0026] Figure 5 This is a three-dimensional structural diagram of the opening mechanism of the present invention.

[0027] Figure 6 This is an enlarged view of point A in the present invention.

[0028] Figure 7 This is a three-dimensional structural diagram of the negative pressure mechanism of the present invention.

[0029] Figure 8 This is a cross-sectional view of the negative pressure mechanism of the present invention.

[0030] Figure 9 This is a three-dimensional structural diagram of the adjustment mechanism of the present invention.

[0031] Figure 10 This is a three-dimensional structural diagram of the buffer mechanism of the present invention.

[0032] Figure 11 This is a three-dimensional structural diagram of the monitoring mechanism of the present invention.

[0033] Reference numerals: 1_Support foot, 2_First connecting pipe, 3_Support pipe, 4_Reverse osmosis membrane, 5_Pressure mechanism, 51_Electric push rod, 52_Lifting frame, 53_Lifting cover, 54_Feed pipe, 55_First one-way valve, 56_Second one-way valve, 6_Opening mechanism, 61_Damping, 62_Connecting arm, 63_First spring, 64_Lever, 7_Negative pressure mechanism, 71_Piston tube, 72_First piston rod, 73_Connecting pipe, 8_Adjusting mechanism, 81_Adjusting screw, 82_Limiting frame, 83_Slide rod, 9_Buffer mechanism, 91_Support sleeve, 92_Second piston rod, 93_Second spring, 10_Monitoring mechanism, 101_Second connecting pipe, 102_Water quality analyzer. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings.

[0035] A reverse osmosis device for high-concentration laboratory wastewater, such as Figure 1 and Figure 2 As shown, it includes a support foot 1, a first connecting pipe 2, a support pipe 3, a reverse osmosis membrane 4, and a pressurizing mechanism 5. The support foot 1 has two parts, front and back, and mounting holes are opened on both the left and right sides of the support foot 1 for easy fixing. The first connecting pipe 2 is connected between the upper parts of the support foot 1. The support pipe 3 is connected inside the first connecting pipe 2. The lower side of the support pipe 3 is connected to the first connecting pipe 2. The reverse osmosis membrane 4 is connected to the outside of the support pipe 3. The pressurizing mechanism 5 is provided on the first connecting pipe 2.

[0036] like Figure 1 , Figure 3 and Figure 4 As shown, the pressurizing mechanism 5 includes an electric push rod 51, a lifting frame 52, a lifting cover 53, a feed pipe 54, a first one-way valve 55, and a second one-way valve 56. The electric push rod 51 is connected to the right side of the first connecting pipe 2. The lifting frame 52 is connected to the telescopic end of the electric push rod 51. The lifting frame 52 is in contact with the reverse osmosis membrane 4. The lifting frame 52 is slidably connected to the first connecting pipe 2. The lifting cover 53 is slidably connected to the lower part of the first connecting pipe 2. The feed pipe 54 is slidably connected to the left side of the lifting frame 52. The feed pipe 54 is connected to the first connecting pipe 2. The first one-way valve 55 is connected to the lower part of the feed pipe 54. The second one-way valve 56 is connected to the lower part of the first connecting pipe 2.

[0037] When using this invention, the first connecting pipe 2 is first placed in the wastewater treatment area. The support foot 1 is fixed to support the connecting pipe through the mounting hole. Then, the wastewater pipe is connected to the feed pipe 54. Subsequently, the electric push rod 51 is activated, causing the lifting frame 52 to move downward inside the first connecting pipe 2, increasing the pressure inside the first connecting pipe 2. This, in turn, creates a negative pressure inside the feed pipe 54, drawing wastewater into the first connecting pipe 2 through the first one-way valve 55. Pure water in the wastewater passes through the reverse osmosis membrane 4 into the support pipe 3 and then flows out through the second one-way valve 56. After the pure water flows out, the lifting cover 53 is pulled upward to open the first connecting pipe 2, allowing concentrated water to flow directly out from the first connecting pipe 2, thereby purifying the water. As the lifting frame 52 moves downward, it scrapes off impurities on the surface of the reverse osmosis membrane 4. This allows the wastewater to be drawn into the first connecting pipe 2 when it is pressurized, while simultaneously cleaning the reverse osmosis membrane 4, preventing any impact on the quality and efficiency of the reverse osmosis process.

[0038] like Figure 1 , Figure 5 and Figure 6As shown, it also includes an opening mechanism 6, which includes a damper 61, a connecting arm 62, a first spring 63, and a lever 64. The damper 61 is slidably connected to the upper right side of the lifting frame 52. The connecting arms 62 are connected to the front and rear sides of the lower part of the damper 61. The first spring 63 is connected between the damper 61 and the lifting frame 52. The levers 64 are rotatably connected to the front and rear sides of the lower part of the lifting frame 52. The connecting arms 62 are pressed and engaged with the adjacent levers 64. The levers 64 are movably connected to the lifting cover 53.

[0039] Using the opening mechanism 6 of this device, the lifting cover 53 can be automatically pulled up. As the lifting frame 52 moves down, it drives the damper 61 to move down, which in turn drives the connecting arm 62 to move down. After the connecting arm 62 moves down a certain distance, it squeezes the lever 64 to rotate, causing the lever 64 to lift the lifting cover 53 up, thus opening the first connecting pipe 2. This achieves the function of automatically opening the first connecting pipe 2, saving manpower. Afterwards, the lifting frame 52 continues to move down, and the damper 61 moves up relatively. The first spring 63 stretches, causing the connecting arm 62 to press against the lever 64. After the concentrated water is discharged, the lifting frame 52 moves up to reset. After the lifting frame 52 moves up a small distance, the connecting arm 62 disengages from the lever 64, and the lifting cover 53 automatically falls down under the action of gravity, closing the first connecting pipe 2. The damper 61 is reset by the rebound of the first spring 63.

[0040] like Figure 1 , Figure 7 and Figure 8 As shown, it also includes a negative pressure mechanism 7, which includes a piston tube 71, a first piston rod 72 and a connecting pipe 73. The piston tube 71 is connected to the upper left side of the first connecting pipe 2. The first piston rod 72 is slidably connected inside the piston tube 71. The front and rear parts of the first piston rod 72 are connected to the lifting frame 52. The connecting pipe 73 connects the piston tube 71 and the support pipe 3.

[0041] Using the negative pressure mechanism 7 of this device, negative pressure can be generated inside the support tube 3. When the lifting frame 52 moves downward, it drives the first piston rod 72 to move downward, which generates negative pressure inside the piston tube 71. Through the connecting pipe 73, negative pressure is generated inside the support tube 3, thereby accelerating the speed at which pure water passes through the reverse osmosis membrane 4 and improving the wastewater treatment efficiency.

[0042] like Figure 1 and Figure 9As shown, it also includes an adjustment mechanism 8, which includes an adjustment screw 81, a limit frame 82, and a slide bar 83. The adjustment screw 81 is rotatably connected to the upper right side of the lifting frame 52. The adjustment screw 81 is located to the right of the damper 61. A knob is provided on the upper side of the adjustment screw 81 for easy rotation and adjustment. The limit frame 82 is threadedly connected to the adjustment screw 81. The limit frame 82 is located under the connecting arm 62. Slide bars 83 are connected to the upper front and rear sides of the limit frame 82. The slide bars 83 are slidably connected to the adjacent connecting arm 62.

[0043] Using the adjustment mechanism 8 of this device, the height of the damper 61 can be adjusted. When wastewater is introduced into the first connecting pipe 2, the adjustment screw 81 is turned by the knob according to the wastewater concentration, causing the limit frame 82 to move, which in turn moves the slide bar 83, causing the connecting arm 62 to move accordingly. The timing of the connecting arm 62 triggering the lever 64 is adjusted so that when the wastewater concentration is low, greater pressure can be applied to the first connecting pipe 2, making it easier to separate more pure water, thus achieving the function of adapting to the treatment of wastewater with different concentrations.

[0044] like Figure 1 and Figure 10 As shown, it also includes a buffer mechanism 9, which includes a support sleeve 91, a second piston rod 92 and a second spring 93. The upper right part of the lifting frame 52 is connected to the support sleeve 91, and the second piston rod 92 is slidably connected to the support sleeve 91. The second piston rod 92 is slidably connected to the lifting frame 52, and the second spring 93 is connected between the second piston rod 92 and the support sleeve 91.

[0045] The buffer mechanism 9 of this device can relieve the pressure inside the first connecting pipe 2. When the pressure inside the first connecting pipe 2 reaches its limit, the internal pressure squeezes the second piston rod 92 to move upward, and the second spring 93 is compressed and contracted, thereby relieving the pressure inside the first connecting pipe 2 and preventing damage to the internal items.

[0046] like Figure 1 and Figure 11 As shown, it also includes a monitoring mechanism 10, which includes a second connecting pipe 101 and a water quality analyzer 102. The second connecting pipe 101 is connected to the lower side of the first connecting pipe 2. Flanges are provided on both the upper and lower sides of the second connecting pipe 101 for easy connection. The water quality analyzer 102 is connected to the right side of the second connecting pipe 101.

[0047] The monitoring mechanism 10 of this device can monitor the changes in the water quality of pure water. After the pure water flows out from the second one-way valve 56, it enters the second connecting pipe 101, so that the water quality detector 102 can monitor the changes in the water quality of pure water, thereby avoiding damage to the reverse osmosis membrane 4 and incomplete separation of wastewater (the water quality detector mentioned in the text is existing technology, and its working principle is not described in detail here).

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A reverse osmosis device for treating high-concentration laboratory wastewater, characterized in that, It includes a support foot (1), a first connecting pipe (2), a support pipe (3), a reverse osmosis membrane (4), and a pressurizing mechanism (5). The support foot (1) has two parts, front and back. The upper part of the support foot (1) is connected to the first connecting pipe (2). The support pipe (3) is connected inside the first connecting pipe (2). The lower side of the support pipe (3) is connected to the first connecting pipe (2). The reverse osmosis membrane (4) is connected to the outside of the support pipe (3). The first connecting pipe (2) is equipped with a pressurizing mechanism (5) that can increase the internal pressure.

2. The reverse osmosis device for high-concentration laboratory wastewater according to claim 1, characterized in that, The support foot (1) has mounting holes on both the left and right sides.

3. The reverse osmosis device for high-concentration laboratory wastewater according to claim 1, characterized in that, The pressurizing mechanism (5) includes an electric push rod (51), a lifting frame (52), a lifting cover (53), a feed pipe (54), a first check valve (55), and a second check valve (56). The electric push rod (51) is connected to the right side of the first connecting pipe (2). The lifting frame (52) is connected to the telescopic end of the electric push rod (51). The lifting frame (52) is in contact with the reverse osmosis membrane (4). The lifting frame (52) is slidably connected to the first connecting pipe (2). The lifting cover (53) is slidably connected to the lower part of the first connecting pipe (2). The feed pipe (54) is slidably connected to the left side of the lifting frame (52). The feed pipe (54) is connected to the first connecting pipe (2). The lower part of the feed pipe (54) is connected to the first one-way valve (55), and the lower part of the first connecting pipe (2) is connected to the second one-way valve (56). The electric push rod (51) is activated, causing the lifting frame (52) to move downward inside the first connecting pipe (2), which increases the pressure inside the first connecting pipe (2), thereby generating negative pressure inside the feed pipe (54), drawing wastewater into the first connecting pipe (2) through the first one-way valve (55). While the lifting frame (52) moves downward, it scrapes off the impurities on the surface of the reverse osmosis membrane (4).

4. A reverse osmosis device for high-concentration laboratory wastewater according to claim 3, characterized in that, It also includes an opening mechanism (6), which includes a damper (61), a connecting arm (62), a first spring (63) and a lever (64). The upper right side of the lifting frame (52) is slidably connected to the damper (61). The lower front and rear sides of the damper (61) are connected to the connecting arm (62). The damper (61) and the lifting frame (52) are connected to the first spring (63). The lower front and rear sides of the lifting frame (52) are rotatably connected to the lever (64). The connecting arm (62) is pressed and engaged with the adjacent lever (64). The lever (64) is movably connected to the lifting cover (53). When the lifting frame (52) moves downward, it drives the damper (61) to move downward, which in turn drives the connecting arm (62) to move downward. After the connecting arm (62) moves down a certain distance, it squeezes the lever (64) to rotate, so that the lever (64) lifts the lifting cover (53) upward, so that the first connecting pipe (2) opens.

5. A reverse osmosis device for high-concentration laboratory wastewater according to claim 4, characterized in that, It also includes a negative pressure mechanism (7), which includes a piston tube (71), a first piston rod (72) and a connecting pipe (73). The piston tube (71) is connected to the upper left side of the first connecting pipe (2). The first piston rod (72) is slidably connected inside the piston tube (71). The front and rear parts of the first piston rod (72) are connected to the lifting frame (52). The connecting pipe (73) connects the piston tube (71) and the support pipe (3). When the lifting frame (52) moves downward, it drives the first piston rod (72) to move downward, so that negative pressure is generated inside the piston tube (71). Negative pressure is generated inside the support pipe (3) through the connecting pipe (73).

6. A reverse osmosis device for high-concentration laboratory wastewater according to claim 5, characterized in that, It also includes an adjustment mechanism (8), which includes an adjustment screw (81), a limit frame (82) and a slide rod (83). The upper right side of the lifting frame (52) is rotatably connected to the adjustment screw (81). The adjustment screw (81) is located to the right of the damper (61). The limit frame (82) is threadedly connected to the adjustment screw (81). The limit frame (82) is located under the connecting arm (62). The upper front and rear sides of the limit frame (82) are connected to slide rods (83). The slide rods (83) are slidably connected to the adjacent connecting arm (62). Rotating the adjustment screw (81) causes the limit frame (82) to move, which in turn causes the slide rods (83) to move, which in turn causes the connecting arm (62) to move, thus adjusting the time when the connecting arm (62) triggers the lever (64).

7. A reverse osmosis device for high-concentration laboratory wastewater according to claim 6, characterized in that, A knob is provided on the upper side of the adjusting screw (81).

8. A reverse osmosis device for high-concentration laboratory wastewater according to claim 6, characterized in that, It also includes a buffer mechanism (9), which includes a support sleeve (91), a second piston rod (92) and a second spring (93). The upper right part of the lifting frame (52) is connected to the support sleeve (91), and the second piston rod (92) is slidably connected to the support sleeve (91). The second piston rod (92) is slidably connected to the lifting frame (52), and the second spring (93) is connected between the second piston rod (92) and the support sleeve (91). When the pressure in the first connecting pipe (2) reaches the limit, the internal pressure squeezes the second piston rod (92) to move upward, and the second spring (93) is squeezed and contracted.

9. A reverse osmosis device for high-concentration laboratory wastewater according to claim 8, characterized in that, It also includes a monitoring device (10), which includes a second connecting pipe (101) and a water quality detector (102). The second connecting pipe (101) is connected to the lower side of the first connecting pipe (2), and the water quality detector (102) is connected to the right side of the second connecting pipe (101). Pure water flows out from the second one-way valve (56) and enters the second connecting pipe (101), so that the water quality detector (102) monitors the water quality changes of the pure water.

10. A reverse osmosis device for high-concentration laboratory wastewater according to claim 9, characterized in that, The second connecting pipe (101) has flanges on both the upper and lower sides.

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