High-performance defoaming flow cell for low-range turbidity test

Abstract

The utility model relates to the field of water quality detection equipment, and provides a high-performance defoaming flow cell for low-range turbidity test, which comprises a flow cell body, a flow cell cover plate, a turbidity sensor and a turbidity cleaning nozzle, the flow cell cover plate is fixedly mounted on the flow cell body, a repeatedly bent defoaming waterway is formed in the flow cell body, and the turbidity sensor is fixedly mounted on the turbidity cleaning nozzle. The turbidity sensor is laterally mounted on the flow cell body through a positioning pin and a fixing nut and is arranged in a turbidity measuring area in the flow cell body, a lens of the turbidity sensor is aligned with a turbidity cleaning nozzle in the flow cell body, and a water inlet, a water outlet and a sewage draining exit which are communicated with the defoaming water path are formed in the flow cell body. According to the utility model, the accuracy of turbidity test is effectively improved, the service life of equipment is effectively prolonged, and the problems of bubble influence and difficulty in sensor cleaning and defoaming in the prior art are solved.

Description

Technical Field

[0001] The utility model belongs to the field of water quality detection equipment, and particularly relates to a high-performance defoaming flow cell for low-range turbidity testing. Background Art

[0002] In water quality monitoring, turbidity is an important indicator used to reflect the content of suspended particulate matter in water bodies. Traditional turbidity testing equipment faces many challenges in practical applications, including bubble interference, difficult sensor cleaning, and dirt accumulation problems during long-term use. These problems are particularly significant in low-range turbidity testing because even minor interference can have a significant impact on test results.

[0003] Among them, under high-pressure conditions, bubbles in the water flow are likely to adhere to the surface of the turbidity sensor or be generated in the flow cell. These bubbles scatter light, resulting in inaccurate readings of the turbidity sensor. Traditional defoaming methods usually have poor effects and are difficult to completely eliminate bubbles, thus affecting the accuracy and stability of turbidity measurement. Moreover, after long-term use, the surface of the turbidity sensor is prone to adhering dirt and microorganisms, and these attachments will affect the measurement accuracy of the sensor. Conventional cleaning methods usually require disassembling the sensor for manual cleaning, which not only increases the maintenance workload but also may cause positioning deviation and damage to the sensor. Secondly, during the use of the flow cell, suspended substances in the water body are likely to deposit at the bottom of the cell or in the measurement area, and long-term accumulation will form dirt, affecting the smooth flow of water and the accuracy of measurement results. Especially in low-range measurements, the impact of these deposits on test results is more obvious.

[0004] Therefore, how to design an automatic cleaning function and a defoaming function to reduce the maintenance frequency of the sensor is an urgent problem to be solved. Summary of the Utility Model

[0005] To solve the above problems, the utility model provides a high-performance defoaming flow cell capable of low-range turbidity testing. By optimizing the internal waterway design of the flow cell, introducing an automatic cleaning function, and an anti-fouling structure, the accuracy of turbidity testing and the service life of the equipment are effectively improved to solve the problems of bubble influence, sensor cleaning, and defoaming difficulties existing in the prior art.

[0006] The utility model is implemented by adopting the following technical solutions:

[0007] The utility model provides a high-performance defoaming flow cell for low-range turbidity measurement, which includes a flow cell body, a flow cell cover plate, a turbidity sensor, and a turbidity cleaning nozzle. The flow cell cover plate is fixedly installed on the flow cell body. An anti-foam water path with repeated bends is formed inside the flow cell body. The turbidity sensor is side-mounted on the flow cell body through a positioning pin and a fixing nut and is arranged in the turbidity measurement area inside the flow cell body. The lens of the turbidity sensor is aligned with the turbidity cleaning nozzle inside the flow cell body. The flow cell body is provided with a water inlet, a water outlet, and a sewage outlet that are communicated with the anti-foam water path.

[0008] As a further solution of the utility model, the flow cell body is a side-mounted rectangular flow cell. A cover plate sealing ring is arranged between the flow cell body and the flow cell cover plate, and it is fixedly installed by using hammer nuts and screws to ensure no water leakage under high-pressure environments.

[0009] As a further solution of the utility model, the cover plate sealing ring between the flow cell body and the flow cell cover plate is a fluororubber sealing ring with a circumference of 140 cm and a diameter of 2.65 mm. The flow cell body and the flow cell cover plate are fixed by at least 4 hammer nuts and screws.

[0010] As a further solution of the utility model, the internal edges and corners of the flow cell body are rounded. The water outlet has a 7° slope, which is used to increase the convenience of drainage and ensure full drainage, and the water can be completely drained during drainage.

[0011] As a further solution of the utility model, a sewage outlet is also arranged in the turbidity measurement area inside the flow cell body. The sewage outlet is a funnel-shaped sewage outlet, which can prevent the suspension in the measured water body from precipitating and accumulating, and is convenient for discharging dirt.

[0012] As a further solution of the utility model, the turbidity sensor is installed on the side of the flow cell body. The turbidity sensor is accurately positioned and installed and fixed through a positioning pin and a fixing nut.

[0013] As a further solution of the utility model, the fixing nut is a locking cap threadedly connected to the side of the flow cell body. An O-ring seal is arranged between the fixing nut and the side of the flow cell body. The O-ring seal is a fluororubber O-ring.

[0014] As a further solution of the utility model, the lens of the turbidity sensor is a 90° sapphire lens, which is located in the turbidity measurement area and is aligned with the turbidity cleaning nozzle, so as to ensure cleaning and accurate measurement.

[0015] As a further solution of the utility model, the turbidity cleaning nozzle is a high-pressure nozzle connected to an external solenoid valve for timed cleaning, which realizes timed high-pressure cleaning to keep the sensor and the measurement area clean.

[0016] As a further solution of the present utility model, a cleaning port is further provided on the flow cell body. The cleaning port is arranged on the bottom wall of the flow cell body and communicates with the turbidity measurement area, and the turbidity cleaning nozzle is installed in the cleaning port.

[0017] As a further solution of the present utility model, the water inlet, the water outlet and the funnel-shaped sewage outlet are all arranged on the bottom wall of the flow cell body and communicate with the bubble-eliminating water path with repeated bends. The bubbles are effectively eliminated through multiple bends, improving the measurement accuracy.

[0018] As a further solution of the present utility model, the flow cell body is also used to measure 5 detection parameters simultaneously, meeting the requirements of different water quality monitoring.

[0019] Compared with the prior art, a high-performance bubble-eliminating flow cell for low-range turbidity measurement of the present utility model has the following beneficial effects:

[0020] 1. It has high bubble-eliminating ability. By designing a bubble-eliminating water path with repeated bends inside the flow cell body of the present utility model, the bubble-eliminating effect is significantly improved. The bent water path increases the water flow path, enabling the bubbles to be fully released during the flow process, preventing the bubbles from entering the turbidity measurement area, and thus ensuring the accuracy and stability of low-range turbidity measurement.

[0021] 2. It has a leak-proof design. A fluororubber sealing ring with a circumference of 140 cm and a diameter of 2.65 mm, and at least 4 hammer nuts are used for fixed installation to ensure the tightness of the flow cell under high-pressure environment. The fluororubber sealing ring has excellent high-temperature resistance and corrosion resistance, can effectively prevent water leakage, and improves the safety and service life of the equipment.

[0022] 3. It can realize the automatic cleaning function. The lens of the turbidity sensor adopts a 90° sapphire lens design, which is aligned with the high-pressure turbidity cleaning nozzle, and the timed cleaning function is realized by connecting an external solenoid valve. This design effectively prevents the accumulation of dirt on the sensor lens, ensures the measurement accuracy and long-term stability of the turbidity sensor, and reduces the maintenance frequency and operation complexity.

[0023] 4. It realizes convenient drainage and sewage discharge. The water outlet at the bottom of the flow cell body is designed with a 7° slope to ensure complete drainage during drainage and avoid secondary pollution caused by water body residue. At the same time, a funnel-shaped sewage outlet is provided to facilitate the removal of suspended substances and sediments in the measured water body, prevent pollutants from accumulating inside the flow cell, and simplify the cleaning and maintenance work.

[0024] 5. It can realize multi-parameter measurement. This flow cell is not only suitable for turbidity measurement, but also can measure up to 5 detection parameters simultaneously, meeting the requirements of different water quality monitoring. This multi-functional design improves the applicability and practical value of the equipment, and is especially suitable for application scenarios that require comprehensive water quality detection.

[0025] 6. The accurate positioning of the sensor is achieved. The turbidity sensor is accurately installed on the side of the flow cell body through the positioning pin and the fixing nut, ensuring that the sensor lens is aligned with the cleaning nozzle and avoiding measurement errors caused by installation deviation. This design ensures the stability of the sensor and the reliability of the measurement results, reducing the influence of human factors on the test accuracy.

[0026] 7. Safe and durable. The internal corners of the flow cell body are rounded, reducing the risk of water flow impact and dirt accumulation and increasing the service life of the flow cell. At the same time, high-quality materials and precision manufacturing processes are adopted, making the equipment have high durability and reliability and enabling it to operate stably for a long time in harsh environments.

[0027] In summary, the high-performance defoaming flow cell of the present utility model has multiple advantages such as efficient defoaming, leak prevention, automatic cleaning, convenient drainage and sewage discharge, multi-parameter measurement, accurate sensor positioning, and safety and durability. It comprehensively solves various problems in the prior art and significantly improves the accuracy and reliability of low-range turbidity tests. Its design fully considers various requirements and challenges in actual use, has broad application prospects and market value, and can provide reliable technical support and solutions for water quality monitoring. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of a high-performance defoaming flow cell for low-range turbidity tests provided by the present utility model.

[0029] Figure 2 is an exploded view of a high-performance defoaming flow cell for low-range turbidity tests provided by the present utility model.

[0030] Figure 3 is an internal structural diagram of the flow cell body in a high-performance defoaming flow cell for low-range turbidity tests provided by the present utility model.

[0031] Figure 4 is a top view of a high-performance defoaming flow cell for low-range turbidity tests provided by the present utility model.

[0032] Figure 5 is a schematic structural diagram of the bottom wall of the flow cell body in a high-performance defoaming flow cell for low-range turbidity tests provided by the present utility model.

[0033] Reference Signs:

[0034] 1 - Flow cell body, 2 - Hammer nut screw, 3 - Turbidity measurement area, 4 - Turbidity sensor, 5 - O-ring seal, 6 - Fixing nut, 7 - Lens, 8 - Defoaming waterway, 9 - Drain port, 10 - Water inlet, 11 - Water outlet, 12 - Cleaning port, 13 - Cover seal. Detailed implementation

[0035] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the following further elaborates on the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0036] In view of the high-pressure working conditions, bubbles in the water flow are likely to adhere to the surface of the turbidity sensor or be generated in the flow cell. These bubbles will scatter light, resulting in inaccurate readings of the turbidity sensor. Traditional defoaming methods usually have poor effects and are difficult to completely eliminate bubbles, thus affecting the accuracy and stability of turbidity measurement. Moreover, after long-term use of the turbidity sensor, dirt and microorganisms are likely to adhere to its surface, and these attachments will affect the measurement accuracy of the sensor. Conventional cleaning methods usually require disassembling the sensor for manual cleaning, which not only increases the maintenance workload but also may cause positioning deviation and damage to the sensor. Secondly, during the use of the flow cell, suspended substances in the water body are likely to deposit at the bottom of the cell or in the measurement area, and long-term accumulation will form dirt, affecting the smooth flow of water and the accuracy of the measurement results. Especially during low-range measurement, the influence of these deposits on the test results is more obvious.

[0037] The present utility model provides a high-performance defoaming flow cell for low-range turbidity testing. By optimizing the internal waterway design of the flow cell, introducing an automatic cleaning function, and an anti-fouling structure, it effectively improves the accuracy of turbidity testing and the service life of the device to solve the problems of bubble influence, sensor cleaning, and defoaming difficulties existing in the prior art.

[0038] The following further illustrates the technical solutions of the present utility model in conjunction with specific embodiments:

[0039] See Figures 1 to 5 As shown, a high-performance defoaming flow cell for low-range turbidity testing provided by an embodiment of the present utility model includes a flow cell body 1, a flow cell cover, a turbidity sensor 4, and a turbidity cleaning nozzle. The flow cell cover is fixedly installed on the flow cell body 1. An anti-foaming waterway 8 that bends repeatedly is formed inside the flow cell body 1. The turbidity sensor 4 is laterally installed on the flow cell body 1 through a positioning pin and a fixing nut 6 and is arranged in the turbidity measurement area 3 inside the flow cell body 1. The lens 7 of the turbidity sensor 4 is aligned with the turbidity cleaning nozzle inside the flow cell body 1. The flow cell body 1 is provided with a water inlet 10, a water outlet 11, and a drain port 9 that communicate with the anti-foaming waterway 8.

[0040] In this utility model, by designing a bubble-eliminating water path 8 with repeated bends inside the flow cell body 1, the bubble elimination effect is significantly improved. The bent water path increases the water flow path, enabling bubbles to be fully released during the flow process, preventing bubbles from entering the turbidity measurement area 3, and thus ensuring the accuracy and stability of low-range turbidity tests.

[0041] In this embodiment, as shown in Figure 1 the figure, the flow cell body 1 is a side-mounted rectangular flow cell. A cover plate sealing ring 13 is provided between the flow cell body 1 and the flow cell cover plate, and it is fixedly installed using hammer nuts 2 to ensure no water leakage under high-pressure environments.

[0042] Among them, the cover plate sealing ring 13 between the flow cell body 1 and the flow cell cover plate is a fluororubber sealing ring with a circumference of 140 cm and a diameter of 2.65 mm. The flow cell body 1 and the flow cell cover plate are fixed by at least 4 hammer nuts 2.

[0043] Using a fluororubber sealing ring with a circumference of 140 cm and a diameter of 2.65 mm, and at least 4 hammer nuts 2 for fixed installation ensures the tightness of the flow cell under high-pressure environments. The fluororubber sealing ring has excellent high-temperature resistance and corrosion resistance, can effectively prevent water leakage, and improve the safety and service life of the equipment.

[0044] In this embodiment, the inner corners of the flow cell body 1 are rounded. The inner corners of the flow cell body 1 are rounded, reducing the risk of water flow impact and dirt accumulation, and improving the service life of the flow cell. At the same time, using high-quality materials and precision manufacturing processes makes the equipment have high durability and reliability, and can operate stably for a long time in harsh environments.

[0045] The water outlet 11 has a 7° slope, which is used to increase the convenience of drainage and ensure full drainage, and it can be completely drained during drainage. A sewage outlet 9 is also provided in the turbidity measurement area 3 inside the flow cell body 1. The sewage outlet 9 is a funnel-shaped sewage outlet, which prevents the suspension of substances in the measured water body from precipitating and accumulating, and facilitates the discharge of dirt.

[0046] Among them, the water outlet 11 at the bottom of the flow cell body 1 is designed with a 7° slope to ensure complete drainage during drainage and avoid secondary pollution caused by water residue. At the same time, a funnel-shaped sewage outlet 9 is set up to facilitate the removal of suspended substances and sediments in the measured water body, prevent pollutants from accumulating inside the flow cell, and simplify the cleaning and maintenance work.

[0047] In this embodiment, the turbidity sensor 4 is installed on the side of the flow cell body 1. The turbidity sensor 4 is accurately positioned and installed and fixed by a positioning pin and a fixing nut 6. Among them, the fixing nut 6 is a locking cap threadedly connected to the side of the flow cell body 1. An O-ring 5 is provided between the fixing nut 6 and the side of the flow cell body 1. The O-ring 5 is a fluororubber O-ring.

[0048] Among them, the turbidity sensor 4 is accurately installed on the side of the flow cell body 1 through a positioning pin and a fixing nut 6, ensuring that the sensor lens 7 is aligned with the cleaning nozzle, and avoiding measurement errors caused by installation deviations. This design ensures the stability of the sensor and the reliability of the measurement results, reducing the influence of human factors on the test accuracy.

[0049] In this embodiment, the lens 7 of the turbidity sensor 4 is a 90° sapphire lens, which is located in the turbidity measurement area 3 and is aligned with the turbidity cleaning nozzle, ensuring clean and accurate measurement. The turbidity cleaning nozzle is a high-pressure nozzle connected to an external solenoid valve and performing timed cleaning, realizing timed high-pressure cleaning and keeping the sensor and the measurement area clean. Among them, a cleaning port 12 is further provided on the flow cell body 1. The cleaning port 12 is provided on the bottom wall of the flow cell body 1 and communicates with the turbidity measurement area 3. The turbidity cleaning nozzle is installed in the cleaning port 12.

[0050] Among them, the lens 7 of the turbidity sensor 4 is designed with a 90° sapphire lens 7, which is aligned with the high-pressure turbidity cleaning nozzle, and realizes the timed cleaning function by connecting an external solenoid valve. This design effectively prevents the accumulation of dirt on the sensor lens 7, ensures the measurement accuracy and long-term stability of the turbidity sensor 4, and reduces the maintenance frequency and operation complexity.

[0051] In this embodiment, the water inlet 10, the water outlet 11, and the funnel-shaped sewage outlet 9 are all provided on the bottom wall of the flow cell body 1 and communicate with the bubble-eliminating water path 8 with multiple bends. The bubbles are effectively eliminated through multiple bends, improving the measurement accuracy.

[0052] The flow cell body 1 is also used to measure 5 detection parameters simultaneously, meeting different water quality monitoring requirements. This flow cell is not only applicable to turbidity testing, but can also measure up to 5 detection parameters simultaneously, adapting to the needs of different water quality monitoring. This multi-functional design improves the applicability and practical value of the equipment, and is especially suitable for application scenarios that require comprehensive water quality detection.

[0053] The high-performance defoaming flow cell of the present utility model has multiple advantages such as efficient defoaming, leak prevention, automatic cleaning, convenient drainage and sewage discharge, multi-parameter measurement, accurate sensor positioning, safety and durability, etc. It comprehensively solves various problems in the prior art and significantly improves the accuracy and reliability of low-range turbidity testing. Its design fully considers various requirements and challenges in actual use, has broad application prospects and market value, and can provide reliable technical support and solutions for water quality monitoring.

[0054] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high performance defoaming flow cell for low range turbidity testing, characterized in that: The invention comprises a circulation cell body (1), a circulation cell cover, a turbidity sensor (4) and a turbidity cleaning nozzle, wherein the circulation cell cover is fixedly mounted on the circulation cell body (1), a repeatedly bent defoaming water path (8) is formed inside the circulation cell body (1), the turbidity sensor (4) is laterally mounted on the circulation cell body (1) through a positioning pin and a fixing nut (6) and is arranged in a turbidity measuring area (3) inside the circulation cell body (1), a lens (7) of the turbidity sensor (4) is aligned with the turbidity cleaning nozzle inside the circulation cell body (1), and the circulation cell body (1) is provided with a water inlet (10), a water outlet (11) and a sewage outlet (9) which are connected to the defoaming water path (8).

2. The high performance defoaming flow cell for low range turbidity testing according to claim 1, characterized in that: The circulation cell body (1) is a side-mounted rectangular circulation cell. A cover plate sealing ring (13) is provided between the circulation cell body (1) and the circulation cell cover plate, and is fixedly installed using a hammer nut screw (2).

3. The high performance defoaming flow cell for low range turbidity testing according to claim 2, characterized in that: The cover plate sealing ring (13) between the circulation pool body (1) and the circulation pool cover plate is a fluororubber sealing ring with a circumference of 140 cm and a diameter of 2.65 mm. The circulation pool body (1) and the circulation pool cover plate are fixed by at least 4 hammer screws (2).

4. The high performance defoaming flow cell for low range turbidity testing according to claim 3, characterized in that: The inner corners of the circulation pool body (1) are rounded, and the water outlet (11) has a slope of 7°.

5. The high performance defoaming flow cell for low range turbidity testing according to claim 4, characterized in that: The turbidity measurement area (3) in the circulation pool body (1) is also provided with a sewage outlet (9), and the sewage outlet (9) is a bucket-shaped sewage outlet.

6. The high performance defoaming flow cell for low range turbidity testing according to claim 5, characterized in that: The turbidity sensor (4) is mounted on the side of the circulation pool body (1), and the turbidity sensor (4) is accurately positioned and fixedly mounted by means of a positioning pin and a fixing nut (6).

7. The high performance defoaming flow cell for low range turbidity testing according to claim 6, characterized in that: The fixing nut (6) is a locking cap threadedly connected to the side of the circulation cell body (1); an O-type sealing ring (5) is provided between the fixing nut (6) and the side of the circulation cell body (1); and the O-type sealing ring (5) is a fluororubber O-type ring.

8. The high performance defoaming flow cell for low range turbidity testing according to claim 6, characterized in that: The lens (7) of the turbidity sensor (4) is a 90° sapphire lens, which is located in the turbidity measurement area (3) and is aligned with the turbidity cleaning nozzle.

9. The high performance defoaming flow cell for low range turbidity testing according to claim 8, characterized in that: The turbidity cleaning nozzle is a high-pressure nozzle connected to an external electromagnetic valve and performs regular cleaning. The circulation cell body (1) is also provided with a cleaning port (12), which is arranged on the bottom wall of the circulation cell body (1) and is connected to the turbidity measurement area (3), and the turbidity cleaning nozzle is installed in the cleaning port (12).

10. The high performance defoaming flow cell for low range turbidity testing according to claim 9, characterized in that: The water inlet (10), the water outlet (11) and the bucket-shaped sewage outlet (9) are all arranged on the bottom wall of the circulation pool body (1) and are connected to the repeatedly bent defoaming water path (8).

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