Equipment and method for detecting water quantity and water quality after MBR membrane cleaning

Abstract

The invention discloses equipment and a method for detecting water quantity and water quality after MBR membrane cleaning, and belongs to the field of water quality detection. A water quantity and water quality detection device used after MBR membrane cleaning comprises a fixing seat, the periphery of which is provided with installation positions used for installing a light source emitting assembly and a light source receiving assembly respectively; the sampling bottle is provided with an opening and a sample inlet and is mounted on the fixed seat; the shading block is mounted in the sampling bottle; the driving element is installed on the fixing base and used for water sampling and discharging, the light source emitting assembly emits light with the specific wavelength to penetrate through a water sample, the light source receiving assembly is responsible for receiving the light penetrating through the water sample, and due to the fact that different pollutants have different absorption or scattering characteristics on the light, the water sample can be discharged. Therefore, water quality parameters such as turbidity and COD can be deduced by analyzing the change of the received light intensity, and meanwhile, the movement of the driving element can play a certain wiping role to help to remove part of pollutants adhered to the inner wall of the sampling bottle.

Description

Technical Field

[0001] The present invention relates to the field of water quality detection, and particularly to a water volume and water quality detection device and detection method for MBR membrane cleaning. Background Art

[0002] With the aggravation of the global water resource shortage problem and the enhancement of environmental protection awareness, sewage treatment and reuse technologies have developed rapidly. Among them, the membrane bioreactor (MBR), as an efficient sewage treatment process, has received extensive attention because it can achieve high-quality effluent water quality in a compact space. However, during the operation of the MBR system, the membrane module will inevitably be contaminated, resulting in a decrease in membrane flux and further affecting the treatment efficiency. To restore the membrane performance, it is usually necessary to clean the membrane regularly. After cleaning, accurately evaluating the changes in water volume and water quality is crucial for ensuring the stable operation of the system.

[0003] In the water quality detection after MBR membrane cleaning, turbidity is an important indicator to measure the concentration of suspended particulate matter in water. A higher turbidity means the presence of more fine particulate matters, which may not only have a negative impact on the operation of the MBR system, such as reducing membrane flux and increasing energy consumption, but also affect the subsequent disinfection treatment effect. When light passes through a water sample, suspended particles will scatter the light, and the intensity of the scattered light is related to the quantity, size, and distribution of particulate matters in water. By measuring the intensity of the scattered light, the turbidity of the water sample can be calculated.

[0004] In water quality sampling, pollutants in the water quality will adhere to the inside of the sampling device, interfering with the propagation path of light, resulting in an increase in light scattering, thereby changing the light intensity received by the receiver and causing deviation in the measurement result. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that in water quality sampling, pollutants in the water quality will adhere to the inside of the sampling device, interfering with the propagation path of light, resulting in an increase in light scattering, thereby changing the light intensity received by the receiver and causing deviation in the measurement result, and to propose a water volume and water quality detection device and detection method for MBR membrane cleaning.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A water volume and water quality detection device for MBR membrane cleaning after cleaning, comprising: a fixed seat, with installation positions arranged on the peripheral side for installing a light source emission component and a light source receiving component respectively; a sampling bottle, having an opening and a sampling port, the sampling bottle is threadedly installed on the fixed seat through the opening, and a pressure valve is installed in the sampling port; a light shielding block, installed in the sampling bottle; a driving element, fixedly installed on the fixed seat, forming a closed space with the inside of the sampling bottle for water sampling and discharging.

[0008] In order to complete the water sampling and discharging operations, preferably, the driving element includes a fixing frame fixedly installed on the fixed seat, a first installation groove is opened inside the fixing frame, a cylinder is fixedly installed in the first installation groove, a piston pad is slidably installed in the sampling bottle, and the output end of the cylinder extends into the sampling bottle and is connected to the piston pad.

[0009] In order to reduce the dispersion of light, preferably, the light shielding block includes a base, a first upright post and a second upright post are fixedly installed on the base, and a detection light path is formed between the first upright post and the second upright post.

[0010] In order to facilitate disassembly and cleaning, further, one side of the base facing away from the first upright post and the second upright post has a positioning pin, an anti-slip sleeve is fixedly installed on the positioning pin, and a positioning groove adapted to the positioning pin is provided on the inner bottom surface of the sampling bottle.

[0011] In order to reduce the interference light formed by light refraction, furthermore, low-reflection coatings are applied on the joint surface between the fixed seat and the sampling bottle and on the light shielding block; wherein, a transmission light path is formed between the inner wall of the fixed seat and the opposite surfaces of the first upright post and the second upright post.

[0012] In order to reduce the existence of air bubbles in the sampling bottle, further, the driving element further includes a second installation groove opened inside the fixing frame, an excitation block is slidably installed in the second installation groove, and a first spring is fixedly connected between the excitation block and the inner bottom surface of the second installation groove; wherein, an adjusting rod is slidably installed in the excitation block, and a fixed pin abutted against the adjusting rod is fixedly installed at the output end of the cylinder; abutting blocks are fixedly installed on the groove walls of the first installation groove and the second installation groove, and the opposite surfaces of the abutting blocks and the adjusting rod are both inclined surfaces.

[0013] In order to provide a restoring force, furthermore, a sliding groove is opened inside the excitation block, a limiting plate is fixedly installed on the adjusting rod, and a second spring is fixedly connected between the limiting plate and the inner side wall of the sliding groove.

[0014] In order to carry out defoaming treatment after the treatment water in the sampling bottle has been filled up, further, a bushing is fixedly installed on the output end of the cylinder, a slide bar is slidably installed in the bushing, and the piston pad is fixed to the slide bar; wherein, a third spring is movably installed on the slide bar, there is a limiting platform in a circle in the sampling bottle, and one side of the limiting platform away from the opening abuts against the piston pad.

[0015] In order to enable the water sample to be completely emptied and avoid the influence of residual liquid on subsequent detection, further, the inner bottom surface of the sampling bottle is arc-shaped, and the base is adapted to the inner bottom surface of the sampling bottle.

[0016] A method for detecting the water quantity and water quality after MBR membrane cleaning includes the following steps:

[0017] Step 1: Use a flowmeter to measure the flow rate of the treatment water to determine whether the water production of the system after cleaning has returned to normal;

[0018] Step 2: Sample the treatment water;

[0019] Step 3: Carry out defoaming treatment on the container filled with the treatment water sample;

[0020] Step 4: Detect the turbidity of the treatment water through an infrared light source.

[0021] Compared with the prior art, the present invention provides a water quantity and water quality detection device and detection method for after MBR membrane cleaning, and has the following beneficial effects:

[0022] 1. For the water quantity and water quality detection device for after MBR membrane cleaning, the driving element works to generate negative pressure, so that the water sample to be detected enters the sampling bottle through the pressure valve at the sampling port. In the detection stage, the light source emission component emits light with a specific wavelength to pass through the water sample, and the light source receiving component is responsible for receiving the light penetrating the water sample. Since different pollutants have different absorption or scattering characteristics for light, the water quality parameters such as turbidity and COD can be inferred by analyzing the change in the received light intensity. After the detection is completed, the driving element can operate in reverse to discharge the water in the sampling bottle, so as to facilitate the cleaning treatment before the next sampling. The whole process from sampling, detection to discharge can achieve a certain degree of automation, reduce the need for manual intervention, improve work efficiency. At the same time, the movement of the driving element can play a certain wiping role to help remove some pollutants adhering to the inner wall of the sampling bottle and improve the detection efficiency;

[0023] 2. The water quantity and water quality detection equipment after MBR membrane cleaning, when the cylinder is in motion, its output end pushes or pulls the piston pad to complete the sampling and discharge operations of the water sample. During the movement of the cylinder output end, the fixed pin will push the adjusting rod to drive the exciting block to move upward together, and the second spring will be compressed. Since the contact surface between the adjusting rod and the abutment block is designed as an inclined surface, when the adjusting rod continues to move and contacts the abutment block, it will generate horizontal movement and break away from the contact with the fixed pin. The action of the second spring will cause the adjusting rod to quickly return to its original position. This process will generate vibration, which will be transmitted to the sampling bottle through the exciting block, which will help loosen the bubbles attached to the inner wall of the sampling bottle, further ensuring the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a water quantity and water quality detection device for MBR membrane cleaning proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of a sampling bottle for water quantity and water quality detection equipment after MBR membrane cleaning proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the installation structure of a sampling bottle and a bottom plate for a water quantity and water quality detection device after MBR membrane cleaning proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of a driving element of a device for detecting water quantity and water quality after MBR membrane cleaning proposed by the present invention;

[0028] Figure 5 This is a schematic diagram of the internal structure of an excitation block of a device for detecting water quantity and water quality after MBR membrane cleaning proposed by the present invention;

[0029] Figure 6 This is a schematic diagram of the shaft sleeve structure of a water quantity and water quality detection device after MBR membrane cleaning proposed by the present invention.

[0030] In the figure: 1. Fixing seat; 2. Light source transmitting assembly; 3. Light source receiving assembly;

[0031] 4. Sampling bottle; 401. opening; 402. injection port; 403. pressure valve; 404. positioning groove; 405. limiting platform;

[0032] 5. Shading block; 501. Base; 502. First column; 503. Second column; 504. Positioning pin; 505. Anti-slip sleeve;

[0033] 6. Driving element; 601. Fixed bracket; 602. First mounting groove; 603. Cylinder; 604. Piston pad; 605. Second mounting groove; 606. Excitation block; 6061. Chute; 6062. Limiting plate; 6063. Second spring; 607. First spring; 608. Adjusting rod; 609. Fixed pin; 610. Contact block; 611. Bush; 612. Slide bar; 613. Third spring. Detailed implementation manner

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0036] Specifically, please refer to Figures 1-6 , a water volume and water quality detection device for MBR membrane cleaning, including: a fixed seat 1, with mounting positions arranged on the peripheral side for respectively mounting a light source emitting component 2 and a light source receiving component 3; a sampling bottle 4, having an opening 401 and a sampling port 402, the sampling bottle 4 is threadedly mounted on the fixed seat 1 through the opening 401, and a pressure valve 403 is installed in the sampling port 402; a light-shielding block 5, installed in the sampling bottle 4; a driving element 6, fixedly installed on the fixed seat 1, forming a closed space with the inside of the sampling bottle 4 for water sampling and discharge.

[0037] The water volume and water quality detection equipment provided by the present invention for MBR membrane cleaning, in the installation and preparation stage, the equipment respectively arranges a light source emission component 2 and a light source receiving component 3 through the installation positions on the fixing seat 1 to form an optical path. The sampling bottle 4 has an opening 401 and a sampling port 402, and is installed on the fixing seat 1 in a threaded manner through the opening 401. A pressure valve 403 is installed in the sampling port 402 to control the process of water entering the sampling bottle 4. The light-shielding block 5 is located inside the sampling bottle 4, and its function is to prevent light from directly passing through the space not occupied by the sample to be detected and forming scattering, thereby ensuring the detection accuracy. In the water sampling stage, the driving element 6 works to generate negative pressure, so that the water sample to be detected enters the sampling bottle 4 through the pressure valve 403 of the sampling port 402. In the detection stage, the light source emission component 2 emits light of a specific wavelength through the water sample, and the light source receiving component 3 is responsible for receiving the light that penetrates the water sample. Since different pollutants have different absorption or scattering characteristics for light, the water quality parameters, such as turbidity, COD, etc., can be inferred by analyzing the change in the received light intensity. After the detection is completed, the driving element 6 can operate in the reverse direction to discharge the water in the sampling bottle 4, so as to facilitate the cleaning process before the next sampling. The entire process from sampling, detection to discharge can achieve a certain degree of automation, reducing the need for manual intervention and improving work efficiency. At the same time, the movement of the driving element can play a certain wiping role to help remove some pollutants adhering to the inner wall of the sampling bottle 4, improving the detection efficiency.

[0038] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0039] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0040] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] Embodiment 1:

[0042] Refer to Figures 1-6 , a water volume and water quality detection equipment for MBR membrane cleaning after cleaning, including a fixing seat 1, a sampling bottle 4, a light-shielding block 5 and a driving element 6.

[0043] An installation position is provided on the peripheral side of the fixed seat 1, which is used to install the light source emission component 2 and the light source receiving component 3 respectively. A transmission optical path is formed between the inner wall of the fixed seat 1 and the opposite surfaces of the first upright column 502 and the second upright column 503 of the light shielding block 5. The fitting surface with the sampling bottle 4 and the light shielding block 5 are both coated with a low-reflection coating to reduce unnecessary light reflection and improve the detection accuracy; the sampling bottle 4 has an opening 401 and a sampling port 402. The sampling bottle 4 is threadedly installed on the fixed seat 1 through the opening 401, and a pressure valve 403 is installed in the sampling port 402 to control the process of water entering the sampling bottle 4; Refer to Figure 2 , the light shielding block 5 includes a base 501, on which a first upright column 502 and a second upright column 503 are fixedly installed. A detection optical path is formed between the first upright column 502 and the second upright column 503 to ensure that only the light passing through the sample can be captured by the light source receiving component 3, so as to realize accurate water quality detection; a driving element 6, fixedly installed on the fixed seat 1, forms a closed space with the inside of the sampling bottle 4, and is used for water sampling and discharge.

[0044] Refer to Figure 1 and Figure 4 , the driving element 6 includes a fixing frame 601 fixedly installed on the fixed seat 1. A first installation groove 602 is opened inside the fixing frame 601, and a cylinder 603 is fixedly installed in the first installation groove 602. A piston pad 604 is slidably installed in the sampling bottle 4. The output end of the cylinder 603 extends into the sampling bottle 4 and is connected to the piston pad 604. By the action of the cylinder 603, the piston pad 604 is pushed or pulled to complete the water sampling and discharge operations.

[0045] Through the setting of the above structure, when water quality detection is required, the cylinder 603 acts to move the piston pad 604 away from the sampling port 402, generating a negative pressure, prompting the water sample to be detected to enter the sampling bottle 4 through the pressure valve 403 of the sampling port 402. The light with a specific wavelength emitted by the light source emission component 2 passes through the detection optical path formed by the first upright column 502 and the second upright column 503. The water sample in this optical path will absorb or scatter the light. The light source receiving component 3 receives the light penetrating the water sample and analyzes its intensity change to evaluate the water quality parameters. After the detection is completed, the cylinder 603 acts in the reverse direction to push the piston pad 604 to discharge the water sample in the sampling bottle 4 and prepare for the next sampling. At the same time, due to long-term water quality detection, pollutants will adhere to the inner wall of the sampling bottle 4, affecting the detection accuracy. Therefore, during the discharge process of each water sample, the movement of the piston pad 604 can play a certain wiping role to help remove some of the pollutants adhering to the inner wall of the sampling bottle 4. And to enhance this effect, the size of the piston pad 604 is larger than the inner diameter of the sampling bottle 4, or a soft but wear-resistant material such as rubber is added to its edge to ensure that it can closely fit the bottle wall during the movement.

[0046] Embodiment 2:

[0047] The detection device provided in the first embodiment is further optimized. Specifically, as Figure 3 shown, one side of the base 501 facing away from the first column 502 and the second column 503 has a positioning pin 504, and an anti-slip sleeve 505 is fixedly installed on the positioning pin 504. The inner bottom surface of the sampling bottle 4 has a positioning groove 404 adapted to the positioning pin 504.

[0048] Through the setting of the above structure, by setting the positioning pin 504 on the base 501 and correspondingly setting the positioning groove 404 on the inner bottom surface of the sampling bottle 4, it can ensure that the position is precisely consistent every time the light-shielding block 5 is installed. This design helps to ensure the stability of the detection optical path, enabling the light emitted by the light source emission component 2 to accurately pass through the detection optical path formed by the first column 502 and the second column 503, and then be captured by the light source receiving component 3, improving the repeatability and accuracy of the detection results. At the same time, installing the anti-slip sleeve 505 on the positioning pin 504 can increase the friction force, effectively preventing the accidental movement or rotation of the light-shielding block 5 in the sampling bottle 4, which is particularly important for maintaining the alignment of the optical system, especially in the case where vibrations or other external forces may occur during operation. The anti-slip sleeve 505 is usually made of a material with certain elasticity and wear resistance, such as rubber or silica gel, so that it can provide sufficient friction force without damaging the positioning pin 504 or the positioning groove 404.

[0049] The operator can complete the installation and disassembly of the light-shielding block 5 more easily and quickly without worrying about whether its position is correct, improving work efficiency.

[0050] Embodiment Three:

[0051] The detection device provided in the first or second embodiment is further optimized. As Figures 4-6 shown, the driving element 6 further includes a second installation groove 605 opened inside the fixing frame 601. A vibration excitation block 606 is slidably installed in the second installation groove 605. A first spring 607 is fixedly connected between the vibration excitation block 606 and the inner bottom surface of the second installation groove 605 for providing a restoring force. Among them, an adjusting rod 608 is slidably installed in the vibration excitation block 606, and a fixing pin 609 abutted against the adjusting rod 608 is fixedly installed at the output end of the air cylinder 603. Abutting blocks 610 are fixedly installed on the groove walls of the first installation groove 602 and the second installation groove 605, and the opposite surfaces of the abutting blocks 610 and the adjusting rod 608 are both inclined surfaces.

[0052] Furthermore, a sliding groove 6061 is opened inside the vibration excitation block 606, and a limiting plate 6062 is fixedly installed on the adjusting rod 608. A second spring 6063 is fixedly connected between the limiting plate 6062 and the inner side wall of the sliding groove 6061.

[0053] With the above structure, when the cylinder 603 operates, its output end pushes or pulls the piston pad 604 to complete the sampling and discharging operations of the water sample. During the movement of the output end of the cylinder 603, the fixed pin 609 will push the adjusting rod 608 to drive the excitation block 606 to move upward together, and the second spring 6063 is compressed under force. Since the contact surface between the adjusting rod 608 and the abutting block 610 is designed as an inclined plane, when the adjusting rod 608 continues to move and contacts the abutting block 610, it will generate a horizontal movement and break away from the contact with the fixed pin 609. The acting force of the second spring 6063 will cause the adjusting rod 608 to quickly return to its original position, and this process will generate vibrations. These vibrations are transmitted to the sampling bottle 4 through the excitation block 606, which helps to loosen the bubbles adhering to the inner wall of the sampling bottle 4 and ensures the accuracy of the detection.

[0054] Embodiment 4:

[0055] Based on the further optimization of the detection device provided in the above embodiments, as Figure 6 shown, a bushing 611 is fixedly installed on the output end of the cylinder 603, a sliding rod 612 is slidably installed inside the bushing 611, and the piston pad 604 is fixed to the sliding rod 612. Among them, a third spring 613 is movably installed on the sliding rod 612, and there is a circumferential limiting platform 405 inside the sampling bottle 4. The side of the limiting platform 405 away from the opening 401 abuts against the piston pad 604.

[0056] With the above structure, when the cylinder 603 operates, its output end pushes the sliding rod 612 inside the bushing 611, thereby driving the piston pad 604 to move away from the sample inlet 402, generating a negative pressure, so that the water sample to be detected enters the sampling bottle 4 through the pressure valve 403. The third spring 613 provides a buffering mechanism on the sliding rod 612 and can absorb the impact when the piston pad 604 contacts the limiting platform 405. At the same time, it indicates that the processing water in the sampling bottle 4 has been sampled. As the bushing 611 continues to rise, the fixed pin 609 will push the adjusting rod 608 to drive the excitation block 606 to move upward together to complete the defoaming action.

[0057] Embodiment 5:

[0058] Based on the further optimization of the detection device provided in the above embodiments, as Figure 3 shown, the inner bottom surface of the sampling bottle 4 is arc-shaped, the sample inlet 402 is located at the lowest point of the arc, and the base 501 is adapted to the inner bottom surface of the sampling bottle 4.

[0059] With the above structure, when the cylinder 603 acts to move the piston pad 604 away from the sampling port 402, the negative pressure generated will attract the water sample to be detected to enter the sampling bottle 4 through the sampling port 402. Since the sampling port 402 is located at the lowest point of the arc, the water sample can flow smoothly into and fill the sampling bottle 4. When the cylinder 603 acts in the reverse direction to push the piston pad 604, the water sample is discharged from the sampling bottle 4. Due to the design of the inner bottom surface of the arc, the water sample can be completely emptied, avoiding the influence of residual liquid on subsequent detection. During the equipment maintenance stage, the cleaning liquid can enter the sampling bottle 4 through the sampling port 402 and cover the entire inner surface by taking advantage of the inner bottom surface of the arc. Combining the reciprocating motion of the piston pad 604 and the vibration mechanism, the pollutants on the inner wall can be efficiently removed.

[0060] A method for detecting the quantity and quality of water after MBR membrane cleaning, comprising the following steps:

[0061] Step 1: Confirm that all components, such as the fixed seat 1, the light source emission component 2, the light source receiving component 3, the sampling bottle 4 and its internal components, etc., are installed correctly and in good condition. Check whether the cylinder 603, the slide bar 612 and the piston pad 604 can move freely, and ensure that the third spring 613 works properly. Clean the inside of the sampling bottle 4 to ensure that there is no residue affecting this detection. Turn on the light source emission component 2 and the light source receiving component 3, preheat and calibrate the optical path to ensure that the light can accurately pass through the detection optical path formed by the first column 502 and the second column 503;

[0062] Step 2: When the cylinder 603 acts, its output end pushes the slide bar 612 in the bushing 611, and then drives the piston pad 604 to move away from the sampling port 402, generating a negative pressure, so that the water sample to be detected enters the sampling bottle 4 through the pressure valve 403. The third spring 613 provides a buffering mechanism on the slide bar 612 and can absorb the impact when the piston pad 604 contacts the limit platform 405. At the same time, it indicates that the treated water in the sampling bottle 4 has been sampled;

[0063] Step 3: During the movement of the output end of the cylinder 603, the fixed pin 609 will push the adjusting rod 608 to drive the vibration block 606 to move up together, and the second spring 6063 is compressed by force. Since the contact surface between the adjusting rod 608 and the abutting block 610 is designed as an inclined surface, when the adjusting rod 608 continues to move and contacts the abutting block 610, a horizontal movement occurs and it disengages from the contact with the fixed pin 609. The acting force of the second spring 6063 will cause the adjusting rod 608 to quickly return to its original position. This process will generate vibrations, and these vibrations are transmitted to the sampling bottle 4 through the vibration block 606, which helps to loosen the bubbles attached to the inner wall of the sampling bottle 4 and ensures the accuracy of the detection;

[0064] Step 4: The light source emission component 2 emits light of a specific wavelength, and the light passes through the water sample and reaches the light source receiving component 3. Water quality parameters such as turbidity and COD are analyzed based on the change in the received light intensity.

[0065] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A water quantity and water quality detection device for MBR membrane cleaning, characterized in that: include: The fixing seat (1) is provided with mounting positions on its circumferential side, respectively used for mounting the light source transmitting component (2) and the light source receiving component (3); A sampling bottle (4) having an opening (401) and a sampling port (402), wherein the sampling bottle (4) is threadedly mounted on the fixing seat (1) through the opening (401), and a pressure valve (403) is installed in the sampling port (402); A light shielding block (5) is installed in the sampling bottle (4); The driving element (6) is fixedly mounted on the fixing seat (1) and forms a closed space with the interior of the sampling bottle (4) for sampling and discharging water.

2. The water quantity and water quality detection equipment after MBR membrane cleaning according to claim 1 is characterized in that: The driving element (6) comprises a fixing frame (601) fixedly mounted on the fixing seat (1), a first mounting groove (602) being provided inside the fixing frame (601), a cylinder (603) being fixedly mounted inside the first mounting groove (602), a piston pad (604) being slidably mounted inside the sampling bottle (4), and an output end of the cylinder (603) extending into the sampling bottle (4) and connected to the piston pad (604).

3. The water quantity and water quality detection equipment after MBR membrane cleaning according to claim 1 is characterized in that: The light shielding block (5) comprises a base (501), on which a first column (502) and a second column (503) are fixedly mounted, and a detection light path is formed between the first column (502) and the second column (503).

4. The water quantity and water quality detection equipment for MBR membrane cleaning according to claim 3 is characterized in that: The base (501) has a positioning pin (504) on one side facing away from the first column (502) and the second column (503), and an anti-slip sleeve (505) is fixedly installed on the positioning pin (504). The inner bottom surface of the sampling bottle (4) has a positioning groove (404) adapted to the positioning pin (504).

5. The water quantity and water quality detection equipment for MBR membrane cleaning according to claim 3 is characterized in that: The fitting surfaces of the fixing seat (1) and the sampling bottle (4) as well as the light shielding block (5) are coated with low-reflection coating; Wherein, a transmission light path is formed between the inner wall of the fixing seat (1) and the opposite surfaces of the first column (502) and the second column (503).

6. The water quantity and water quality detection equipment for MBR membrane cleaning according to claim 2 is characterized in that: The driving element (6) further comprises a second mounting groove (605) provided inside the fixing frame (601), an exciting block (606) being slidably mounted inside the second mounting groove (605), and a first spring (607) being fixedly connected between the exciting block (606) and the bottom surface of the second mounting groove (605); Wherein, an adjusting rod (608) is slidably installed in the excitation block (606), and a fixing pin (609) abutting against the adjusting rod (608) is fixedly installed at the output end of the cylinder (603); Abutment blocks (610) are fixedly mounted on the groove walls of the first installation groove (602) and the second installation groove (605), and the opposing surfaces of the abutment block (610) and the adjustment rod (608) are both inclined surfaces.

7. The water quantity and water quality detection equipment for MBR membrane cleaning according to claim 6 is characterized in that: A slide groove (6061) is provided inside the excitation block (606), a limit plate (6062) is fixedly installed on the adjustment rod (608), and a second spring (6063) is fixedly connected between the limit plate (6062) and the inner side wall of the slide groove (6061).

8. The water quantity and water quality detection equipment for MBR membrane cleaning according to claim 7 is characterized in that: A shaft sleeve (611) is fixedly mounted on the output end of the cylinder (603), a sliding rod (612) is slidably mounted in the shaft sleeve (611), and the piston pad (604) is fixed to the sliding rod (612); Among them, a third spring (613) is movably installed on the sliding rod (612), and a circle of limiting platform (405) is provided in the sampling bottle (4), and the side of the limiting platform (405) away from the opening (401) is in contact with the piston pad (604).

9. The water quantity and water quality detection equipment for MBR membrane cleaning according to claim 3, characterized in that: The inner bottom surface of the sampling bottle (4) is arc-shaped, and the base (501) is adapted to the inner bottom surface of the sampling bottle (4).

10. A method for detecting water quantity and water quality after MBR membrane cleaning, according to any one of claims 1 to 9, a device for detecting water quantity and water quality after MBR membrane cleaning, characterized in that: The following steps are involved: Step 1: Use a flow meter to measure the flow of treated water to determine whether the water output of the system has returned to normal after cleaning; Step 2: Sampling of treated water; Step 3: Defoaming the container containing the treated water sample; Step 4: Detect the turbidity of the treated water through an infrared light source.

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