Suspended matter content on-line detection device for high suspended solid water

Abstract

The utility model discloses a suspended matter content online detection device for high suspended solid water, which belongs to the technical field of environmental governance and comprises a detection system, a reference system and a data processing system. The detection system comprises a water sample incoming pipeline, a detection flow cell water inlet pipeline, a detection flow cell, a detection flow cell blow-off pipeline and a main blow-off pipeline which are connected in sequence; the reference system comprises a reference flow cell water inlet pipeline, a filtering device, a reference flow cell and a reference flow cell blow-off pipeline which are connected in sequence; wherein a detection flow cell light source and a detection flow cell optical sensor are symmetrically mounted on two sides of the detection flow cell water path, and a reference flow cell light source and a reference flow cell optical sensor are symmetrically mounted on two sides of the reference flow cell water path; the data processing system comprises a centralized control device, and the detection flow cell light source, the detection flow cell optical sensor, the reference flow cell light source and the reference flow cell optical sensor are electrically connected with the centralized control device.

Description

Technical Field

[0001] This solution belongs to the field of environmental governance, and specifically relates to an on-line detection device for the suspended solid content of high-suspended solid water. Background Art

[0002] Currently, a large amount of coal-containing wastewater is generated during the mining, processing, and use of coal, such as coal mine wastewater, coal washing wastewater from coal preparation plants, coal conveyor belt washing wastewater from coal-fired power plants, coal yard washing wastewater, and coal yard rainwater. The coal-containing wastewater contains a large amount of suspended solids (SS) introduced by coal powder particles and dust. Generally, after precipitation in a pre-sedimentation tank, the larger-diameter coal powder particles can settle due to gravity, while the coal powder particles with a diameter less than 0.1 mm can remain stably dispersed in water and are difficult to settle naturally. The reason is that the surface of coal powder particles generally carries a negative charge, and the repulsive force between like charges, Brownian motion, and gravity act on each other, making the coal-containing wastewater have the properties of a partial colloidal solution. The coal-containing wastewater has the characteristics of high suspended solids, high chromaticity, and difficult natural sedimentation.

[0003] The removal of SS and chromaticity is the most important purpose of coal-containing wastewater treatment. Since the particle size of coal powder particles in the wastewater is small, the formed coal slime has a high viscosity and a large filtration resistance, so it generally cannot be directly treated by the method of pressure filtration and dehydration. The coal-containing wastewater has the properties of a partial colloidal solution, and generally, the method of adding medicine for coagulation is used to make the SS in the coal-containing wastewater aggregate and destabilize, and methods such as electrocoagulation have also emerged for destabilization treatment. After the SS is destabilized, it is separated by gravity or centrifugal sedimentation, and then filtered to further improve the water quality of the effluent.

[0004] The general design of the system process of the power plant circulating water sewage treatment system is: coagulation clarification + sand filtration + ultrafiltration (or microfiltration) + precision filter + reverse osmosis. Among them, the coagulation treatment part needs to match the appropriate dosage of the added medicine according to the sewage quality, otherwise, it is easy to cause problems such as blockage of the subsequent membrane treatment system, affecting the normal operation of the circulating water sewage treatment system.

[0005] According to the current operating conditions of most coal-fired power plants, the coal-containing wastewater treatment systems all have problems such as equipment aging, high operation and maintenance costs, insufficient treatment capacity, and unsatisfactory effluent water quality after treatment, resulting in the water quality not meeting the environmental protection requirements for reuse and external discharge. Part of the reason why the effluent water quality of the coal-containing wastewater treatment system cannot meet the environmental protection requirements for reuse and external discharge is that the system cannot timely master the incoming water quality and cannot adjust the dosage of the coagulant aid and flocculant in a timely manner according to the water quality, resulting in over-dosing or non-dosing of the coal-containing wastewater treatment system in some power plants. Some power plants have a large change in the quality of the makeup water for the circulating water system, and the suspended solid content of the circulating water sewage cannot be timely mastered, and the dosage of the medicine for the circulating water sewage treatment system cannot be adjusted in a timely manner, resulting in unqualified water quality of the produced water.

[0006] There are currently two methods for measuring the suspended solid content: one is to measure by the method of manual drying and weighing, and the other is to measure by using an ultraviolet spectrophotometer for detection.

[0007] The measuring range of the existing on-line suspended solid content measuring device can only reach 1000 mg / L, which cannot meet the measuring range of the suspended solid content in coal-containing wastewater (100 - 6000 mg / L). Moreover, the existing device for detecting the suspended solid content by using an ultraviolet spectrophotometer can only process the same kind of sewage, and a new standard curve needs to be established each time. There are large color differences between different sewage, and the substrate color has a great influence on the spectrophotometer. It needs to be cleaned with distilled water, the operation steps are cumbersome, and the result error is large. Utility Model Content

[0008] In order to solve the problems existing in the prior art, the present utility model provides an on-line detection device for the suspended solid content in high-suspended solid water, which mainly measures the water samples before and after filtration through an image acquisition element, avoids the influence of the substrate color on the test results, and thus achieves the purpose of on-line detection of the suspended solid content in coal-containing wastewater and circulating water sewage.

[0009] To achieve the above object, the present utility model adopts the following technical solutions:

[0010] An on-line detection device for the suspended solid content in high-suspended solid water, comprising a detection system, a reference system and a data processing system;

[0011] The detection system includes a water sample incoming pipe, a detection flow cell inlet pipe, a detection flow cell, a detection flow cell sewage discharge pipe and a total sewage discharge pipe connected in sequence;

[0012] The reference system includes a reference flow cell inlet pipe, a filtering device, a reference flow cell and a reference flow cell sewage discharge pipe connected in sequence; the water inlet end of the reference flow cell inlet pipe is connected to the water outlet end of the water sample incoming pipe, and the water outlet end of the reference flow cell sewage discharge pipe is connected to the total sewage discharge pipe;

[0013] Wherein, a detection flow cell light source and a detection flow cell optical sensor are symmetrically installed on both sides of the water path of the detection flow cell, and a reference flow cell light source and a reference flow cell optical sensor are symmetrically installed on both sides of the water path of the reference flow cell;

[0014] The data processing system includes a centralized control device, wherein the detection flow cell light source, the detection flow cell optical sensor, the reference flow cell light source and the reference flow cell optical sensor are electrically connected to the centralized control device.

[0015] Further, a water sample incoming water pressure gauge, a water sample incoming water electric valve and a water sample incoming water manual valve are installed on the water sample incoming pipe.

[0016] Further, an electric detection flow cell inlet valve and a manual detection flow cell inlet valve are installed on the inlet pipeline of the detection flow cell.

[0017] Further, a sewage discharge electric valve and a sewage discharge manual valve are installed on the main sewage discharge pipeline, and the main sewage discharge pipeline is connected to the coal-water regulation tank.

[0018] Further, an electric reference flow cell inlet valve and a manual reference flow cell inlet valve are installed on the inlet pipeline of the reference flow cell.

[0019] Further, the relative installation positions of the detection flow cell light source and the detection flow cell optical sensor are perpendicular to the water path in the detection flow cell, and the detection flow cell light source, the detection flow cell optical sensor, and the entire detection flow cell have a first light-shielding unit. The relative installation positions of the reference flow cell light source and the reference flow cell optical sensor are perpendicular to the water path in the reference flow cell, and the reference flow cell light source, the reference flow cell optical sensor, and the entire reference flow cell have a second light-shielding unit.

[0020] Further, the detection flow cell and the reference flow cell are made of transparent materials.

[0021] Further, the detection flow cell light source, the detection flow cell optical sensor, the reference flow cell light source, and the reference flow cell optical sensor are all provided with waterproof structures.

[0022] Further, a flushing system is also included;

[0023] The flushing system includes a flushing water inlet pipeline, a forward flushing pipeline, and a reverse flushing pipeline. The outlet end of the flushing water inlet pipeline is divided into two paths. One path is connected to the forward flushing pipeline, and the outlet end of the forward flushing pipeline is connected to the inlet end of the reference flow cell inlet pipeline. The other path is connected to the reverse flushing pipeline, and the outlet end of the reverse flushing pipeline is connected to the outlet end of the filtering device.

[0024] Further, a forward flushing manual valve and a forward flushing electric valve are installed on the forward flushing pipeline; a reverse flushing manual valve and a reverse flushing electric valve are installed on the reverse flushing pipeline.

[0025] Compared with the existing control system, the present utility model has the following advantages:

[0026] In the present utility model, a detection flow cell light source and a detection flow cell optical sensor are symmetrically installed on both sides of the water path of the detection flow cell, and a reference flow cell light source and a reference flow cell optical sensor are symmetrically installed on both sides of the water path of the reference flow cell. Online measurement is carried out by using a centralized control device to realize the online measurement of the suspended solid content in high-suspended solid water, enabling the power plant operators to control the chemical dosing amounts of the coal-containing wastewater treatment system and the circulating water blowdown treatment system in real time according to the suspended solid content, effectively enhancing the treatment effect and ensuring the effluent water quality. According to the actual situations in different production and operation processes, water quality with a relatively high suspended solid content can all be measured by using the suspended solid content online detection device proposed in this solution. This online detection device solves the problems of the existing device for detecting the suspended solid content by using an ultraviolet spectrophotometer, which can only process the same kind of sewage, needs to establish a new standard curve every time, has a large color difference between different sewage, is greatly affected by the substrate color on the spectrophotometer, needs to be cleaned with distilled water, has cumbersome operation steps and large result errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 FIG. is a schematic diagram of an online detection device for the suspended solid content in high-suspended solid water according to the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to enable the personnel in the technical field to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there may also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] Embodiment 1

[0032] As Figure 1 shown, this embodiment provides an on-line detection device for the suspended solid content of highly suspended solid water, which includes a detection system, a reference system, and a data processing system;

[0033] The detection system includes a water sample incoming pipe 41, a detection flow cell inlet pipe 43, a detection flow cell 1, a detection flow cell sewage discharge pipe 47, and a total sewage discharge pipe 49 connected in sequence;

[0034] The reference system includes a reference flow cell inlet pipe 44, a filtering device 3, a reference flow cell 2, and a reference flow cell sewage discharge pipe 48 connected in sequence; the water inlet end of the reference flow cell inlet pipe 44 is connected to the water outlet end of the water sample incoming pipe 41, and the water outlet end of the reference flow cell sewage discharge pipe 48 is connected to the total sewage discharge pipe 49;

[0035] Wherein, a detection flow cell light source 5 and a detection flow cell optical sensor 6 are symmetrically installed on both sides of the water path of the detection flow cell 1, and a reference flow cell light source 7 and a reference flow cell optical sensor 8 are symmetrically installed on both sides of the water path of the reference flow cell 2;

[0036] The data processing system includes a centralized control device 4, wherein the detection flow cell light source 5, the detection flow cell optical sensor 6, the reference flow cell light source 7, and the reference flow cell optical sensor 8 are electrically connected to the centralized control device 4.

[0037] Based on the above scheme, the present utility model mainly works based on the optical measurement principle, and is divided into the following purposes:

[0038] Sample collection: The water sample to be measured enters the detection system through the water sample incoming pipe 41.

[0039] Detection process: In the detection flow cell 1, the water sample flows in through the detection flow cell inlet pipe 43. Since a detection flow cell light source 5 and a detection flow cell optical sensor 6 are symmetrically installed on both sides of the water path of the detection flow cell, when the light source 5 emits light and passes through the water sample, the optical sensor 6 will receive the light scattered or absorbed by the suspended matter particles.

[0040] The reference system provides a reference benchmark. The filtering device 3 removes the suspended matter in the water sample to obtain relatively clear reference water. The reference water flows into the reference flow cell 2 through the reference flow cell inlet pipe 44. The reference flow cell light source 7 and the reference flow cell optical sensor 8 symmetrically installed on both sides of the water path of the reference flow cell are used to measure the optical characteristics of the reference water.

[0041] Data acquisition: The centralized control device 4 receives the signals from the detection flow cell optical sensor 6 and the reference flow cell optical sensor 8, and by comparing the differences between the two, the content of the suspended matter in the water sample can be calculated.

[0042] Therefore, the utility model can realize on-line real-time monitoring. This device can realize on-line real-time monitoring of the suspended solid content in the water sample, providing timely and accurate data support for the water treatment process. Adopting the optical measurement principle, it has good adaptability to high-suspended solid water and can accurately measure the content of suspended solids.

[0043] By setting up a reference system, the influence of factors such as light source intensity change and background noise on the measurement result is eliminated, improving the accuracy and stability of the measurement. The light sources and optical sensors in the detection flow cell 1 and the reference flow cell 3 are both installed symmetrically, reducing the systematic error and improving the reliability of the measurement. The centralized control device 4 can conveniently collect, process and analyze data, improving the automation level and operation convenience of the system.

[0044] Furthermore, based on the on-line detection device of this embodiment, a fitting curve is determined through the difference between the electrical signals of a large number of optical sensors and the data of the suspended solid content in the water sample. How to perform the fitting curve is not the main content of the utility model and will not be specifically described here.

[0045] Optionally, the reference electrical signal value is synchronously measured each time, and there is no need to establish a new standard curve each time. For the on-line measurement of the suspended solid content in the water sample, the dosing amount of the wastewater treatment system is controlled according to the suspended solid content.

[0046] As an optional embodiment, on the basis of Embodiment 1, this on-line detection device further includes a flushing system;

[0047] The flushing system includes a flushing water inlet pipeline 42, a forward flushing pipeline 45 and a reverse flushing pipeline 46. The water outlet end of the flushing water inlet pipeline 42 is divided into two paths. One path is connected to the forward flushing pipeline 45, and the water outlet end of the forward flushing pipeline 45 is connected to the water inlet end of the reference flow cell inlet pipeline 44. The other path is connected to the reverse flushing pipeline 46, and the water outlet end of the reverse flushing pipeline 46 is connected to the water outlet end of the filtering device 3.

[0048] Embodiment 2

[0049] On the basis of the embodiment, the utility model gives a specific technical solution, such as Figure 1 shown, an on-line detection device for the suspended solid content in high-suspended solid water, including a detection system, a reference system, a flushing system and a data processing system;

[0050] The detection system includes a water sample inlet pipeline 41, a detection flow cell inlet pipeline 43, a detection flow cell 1, a detection flow cell sewage discharge pipeline 47 and a total sewage discharge pipeline 49 connected in sequence.

[0051] A water sample incoming pipe 41 is equipped with a water sample incoming pressure gauge 31, a water sample incoming motorized valve 11, and a water sample incoming manual valve 21. A detection flow cell inlet pipe 43 is equipped with a detection flow cell inlet motorized valve 13 and a detection flow cell inlet manual valve 23. On both sides of the water path of the detection flow cell 1, a detection flow cell light source 5 and a detection flow cell optical sensor 6 are symmetrically installed. A total sewage discharge pipe 49 is equipped with a sewage discharge motorized valve 16 and a sewage discharge manual valve 26.

[0052] The reference system includes a reference flow cell inlet pipe 44, a filtering device 3, a filtering device outlet motorized valve 17, a filtering device outlet manual valve 27, a reference flow cell 2, and a reference flow cell sewage discharge pipe 48 that are connected in sequence.

[0053] The reference flow cell inlet pipe 44 is equipped with a reference flow cell inlet motorized valve 14 and a reference flow cell inlet manual valve 24. On both sides of the water path of the reference flow cell 2, a reference flow cell light source 7 and a reference flow cell optical sensor 8 are symmetrically installed. The water inlet of the reference flow cell inlet pipe 44 is connected between the water sample incoming manual valve 21 and the detection flow cell inlet manual valve 23. The reference flow cell sewage discharge pipe 48 is connected before the sewage discharge motorized valve 16.

[0054] The flushing system includes a flushing water incoming pipe 42, a forward flushing pipe 45, and a reverse flushing pipe 46. The water outlet end of the flushing water incoming pipe 42 is divided into two paths. One path is connected to the forward flushing pipe 45, and the water outlet end of the forward flushing pipe 45 is connected to the water inlet end of the reference flow cell inlet pipe 44. The other path is connected to the reverse flushing pipe 46, and the water outlet end of the reverse flushing pipe 46 is connected to the water outlet end of the filtering device 3.

[0055] The forward flushing pipe 45 is equipped with a forward flushing manual valve 22 and a forward flushing motorized valve 12. The reverse flushing pipe 46 is equipped with a reverse flushing manual valve 25 and a reverse flushing motorized valve 15. The water outlet of the forward flushing pipe 45 is connected between the water sample incoming manual valve 21 and the detection flow cell inlet manual valve 23. The water inlet of the reverse flushing pipe 46 is connected in front of the forward flushing manual valve 22, and the water outlet of the reverse flushing pipe 46 is connected between the filtering device 3 and the filtering device outlet motorized valve 17.

[0056] The data processing system includes a centralized control device 4. Among them, the detection flow cell light source 5, the detection flow cell optical sensor 6, the reference flow cell light source 7, and the reference flow cell optical sensor 8 are connected to the centralized control device 4 through a sensor signal transmission line 32. The water sample incoming motorized valve 11, the forward flushing motorized valve 12, the detection flow cell inlet motorized valve 13, the reference flow cell inlet motorized valve 14, the reverse flushing motorized valve 15, and the sewage discharge motorized valve 16 are electrically connected to the centralized control device 4.

[0057] The relative mounting positions of the detection flow cell light source 5 and the detection flow cell optical sensor 6 are perpendicular to the water path in the detection flow cell 1, and the detection flow cell light source 5, the detection flow cell optical sensor 6, and the entire detection flow cell 1 are shielded from light externally. The relative mounting positions of the reference flow cell light source 7 and the reference flow cell optical sensor 8 are perpendicular to the water path in the reference flow cell 2, and the reference flow cell light source 7, the reference flow cell optical sensor 8, and the entire reference flow cell 2 are shielded from light externally.

[0058] A specific solution can be: The relative mounting positions of the detection flow cell light source 5 and the detection flow cell optical sensor 6 are perpendicular to the water path in the detection flow cell 1, and the detection flow cell light source 5, the detection flow cell optical sensor 6, and the entire detection flow cell 1 have a first light-shielding unit. The relative mounting positions of the reference flow cell light source 7 and the reference flow cell optical sensor 8 are perpendicular to the water path in the reference flow cell 2, and the reference flow cell light source 7, the reference flow cell optical sensor 8, and the entire reference flow cell 2 have a second light-shielding unit. The first light-shielding unit and the second light-shielding unit can be a light-shielding cover or be coated with a light-impermeable material.

[0059] The detection flow cell 1 and the reference flow cell 2 are made of a transparent material, such as glass or light-transmitting plastic, such as PC plastic, etc.

[0060] The detection flow cell light source 5, the detection flow cell optical sensor 6, the reference flow cell light source 7, and the reference flow cell optical sensor 8 are all provided with a waterproof structure.

[0061] Embodiment 3

[0062] When measuring using the above-mentioned on-line detection device for the suspended matter content in high-suspended-solid water, the measuring method includes the following steps:

[0063] Measurement: With all manual valves in the open state, open the water sample incoming water electric valve 11, the detection flow cell inlet water electric valve 13, the reference flow cell inlet water electric valve 14, the sewage discharge electric valve 16, and the filter device outlet electric valve 17, and close the positive flushing electric valve 12 and the back flushing electric valve 15.

[0064] Positive flushing: With all manual valves in the open state, open the positive flushing electric valve 12, the detection flow cell inlet water electric valve 13, the reference flow cell inlet water electric valve 14, the sewage discharge electric valve 16, and the filter device outlet electric valve 17, and close the water sample incoming water electric valve 11 and the back flushing electric valve 15.

[0065] Back flushing: With all manual valves in the open state, open the detection flow cell inlet water electric valve 13, the reference flow cell inlet water electric valve 14, the back flushing electric valve 15, and the sewage discharge electric valve 16, and close the water sample incoming water electric valve 11, the positive flushing electric valve 12, and the filter device outlet electric valve 17.

[0066] Deactivation: Close all electric / manual doors.

[0067] During the measurement process, the light sources 5 of the detection flow cell and the reference flow cell light source 7 are adjusted to the same light intensity. The light signals are converted into electrical signals by the detection flow cell optical sensor 6 and the reference flow cell optical sensor 8. The central control device 4 calculates the difference in electrical signals between the detection flow cell optical sensor 6 and the reference flow cell optical sensor 8. According to the corresponding relationship between the electrical signal difference and the suspended solid content of the water sample to be measured, the current suspended solid content value of the water sample is calculated.

[0068] Thus, the present utility model solves the problems that the measurement range of the existing on-line suspended solid content measurement device cannot meet the determination range of the suspended solid content of coal-containing wastewater and the on-line real-time detection of the suspended solid content of circulating water blowdown.

[0069] Upon reading the above description, many embodiments and many applications beyond the provided examples will be apparent to those skilled in the art. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the full scope of the foregoing claims and the equivalents thereof. For the sake of completeness, all articles and references including patent applications and publications are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended to abandon such subject matter, nor should the applicant be regarded as not considering such subject matter as part of the disclosed subject matter of the utility model.

Claims

1. An online detection device for suspended matter content in high suspended solids water, characterized in that: Including detection system, reference system and data processing system; The detection system comprises a water sample inlet pipeline (41), a detection circulation pool water inlet pipeline (43), a detection circulation pool (1), a detection circulation pool sewage discharge pipeline (47), and a total sewage discharge pipeline (49) which are connected in sequence; The reference system comprises a reference circulation pool water inlet pipeline (44), a filter device (3), a reference circulation pool (2), and a reference circulation pool sewage discharge pipeline (48) which are connected in sequence; the water inlet end of the reference circulation pool water inlet pipeline (44) is connected to the water outlet end of the water sample water pipeline (41), and the water outlet end of the reference circulation pool sewage discharge pipeline (48) is connected to the main sewage discharge pipeline (49); Wherein, a detection circulation pool light source (5) and a detection circulation pool optical sensor (6) are symmetrically installed on both sides of the water channel of the detection circulation pool (1), and a reference circulation pool light source (7) and a reference circulation pool optical sensor (8) are symmetrically installed on both sides of the water channel of the reference circulation pool (2); The data processing system comprises a centralized control device (4), wherein a detection circulation cell light source (5), a detection circulation cell optical sensor (6), a reference circulation cell light source (7), and a reference circulation cell optical sensor (8) are electrically connected to the centralized control device (4).

2. The online detection device for suspended matter content in high suspended solids water according to claim 1, characterized in that: The water sample incoming water pipeline (41) is equipped with a water sample incoming water pressure gauge (31), a water sample incoming water electric door (11) and a water sample incoming water manual door (21).

3. The online detection device for suspended matter content in high suspended solids water according to claim 1, characterized in that: The detection circulation pool water inlet pipeline (43) is installed with a detection circulation pool water inlet electric door (13) and a detection circulation pool water inlet manual door (23).

4. The online detection device for suspended matter content in high suspended solids water according to claim 1, characterized in that: The main sewage discharge pipeline (49) is installed with an electric sewage discharge door (16) and a manual sewage discharge door (26), and the main sewage discharge pipeline (49) is connected to the coal-water regulating tank.

5. The online detection device for suspended matter content in high suspended solids water according to claim 1, characterized in that: The reference circulation pool water inlet pipeline (44) is installed with a reference circulation pool water inlet electric door (14) and a reference circulation pool water inlet manual door (24).

6. The online detection device for suspended matter content in high suspended solids water according to claim 1, characterized in that: The relative installation positions of the detection circulation cell light source (5) and the detection circulation cell optical sensor (6) are perpendicular to the water channel in the detection circulation cell (1), and the detection circulation cell light source (5), the detection circulation cell optical sensor (6), and the detection circulation cell (1) as a whole have a first light-shielding unit, and the relative installation positions of the reference circulation cell light source (7) and the reference circulation cell optical sensor (8) are perpendicular to the water channel in the reference circulation cell (2), and the reference circulation cell light source (7), the reference circulation cell optical sensor (8), and the reference circulation cell (2) as a whole have a second light-shielding unit.

7. The online detection device for suspended matter content in high suspended solids water according to claim 1, characterized in that: The detection circulation cell (1) and the reference circulation cell (2) are made of transparent materials.

8. The online detection device for suspended matter content in high suspended solids water according to claim 1, characterized in that: The detection circulation cell light source (5), the detection circulation cell optical sensor (6), the reference circulation cell light source (7), and the reference circulation cell optical sensor (8) are all provided with a waterproof structure.

9. The online detection device for suspended matter content in high suspended solids water according to claim 1, characterized in that: Also includes flushing system; The flushing system comprises a flushing water supply pipeline (42), a forward flushing pipeline (45) and a backwashing pipeline (46); the water outlet of the flushing water supply pipeline (42) is divided into two paths, one of which is connected to the forward flushing pipeline (45), the water outlet of the forward flushing pipeline (45) is connected to the water inlet of the reference circulation pool water inlet pipeline (44), and the other of which is connected to the backwashing pipeline (46), the water outlet of the backwashing pipeline (46) is connected to the water outlet of the filtering device (3).

10. The online detection device for suspended matter content in high suspended solids water according to claim 9, characterized in that: The forward flushing pipeline (45) is equipped with a forward flushing manual door (22) and a forward flushing electric door (12); the back flushing pipeline (46) is equipped with a back flushing manual door (25) and a back flushing electric door (15).

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