Sewage suspended particle concentration detection device

Abstract

The invention relates to the technical field of sewage detection, and provides a sewage suspended particle concentration detection device which comprises a detector body, the detector body comprises a detection window, an anti-fouling shell, a transparent protection plate and a cleaning roller, the anti-fouling shell is installed on the detector body, the detection window is located in the anti-fouling shell, and the transparent protection plate is located in the anti-fouling shell. A light-transmitting opening allowing light to penetrate through is formed in the position, corresponding to the detection window, of the anti-fouling shell, the transparent protection plate is movably arranged in the anti-fouling shell so as to replace a working area located at the light-transmitting opening, and the transparent protection plate and the light-transmitting opening are in sealed sliding fit. The cleaning rollers are rotatably arranged in the antifouling shell to wipe the side, away from the detector body, of the transparent protection plate, the number of the cleaning rollers is two, and the two cleaning rollers are located on the two sides of the light transmitting opening. By means of the technical scheme, the problems that in the prior art, a detection device is immersed into sewage, a detection window is prone to being polluted, and the detection accuracy and efficiency are reduced are solved.

Description

A wastewater suspended particulate matter concentration detection device Technical Field

[0001] This invention relates to the field of wastewater testing technology, specifically to a device for detecting the concentration of suspended particles in wastewater. Background Technology

[0002] Suspended particles are organic and inorganic particulate matter suspended in water that cannot pass through 0.45-micron filter paper or filters. These include insoluble silt, clay, organic matter, algae, and microorganisms. Suspended matter is one of the indicators for measuring the degree of water pollution. It is the main cause of water turbidity. Organic suspended matter in water is prone to anaerobic fermentation after sedimentation, which deteriorates water quality. Real-time online detection of suspended particle concentration in wastewater is of great significance for timely detection and prevention of water pollution.

[0003] Currently, the most mainstream online automatic wastewater monitoring technology is the optical method, which uses immersion or flow-through sensors. A beam of light passes through the water sample, and suspended particles absorb and scatter the light, causing the intensity of transmitted light to decrease. By measuring the ratio of transmitted light intensity to incident light intensity, the concentration can be indirectly calculated. However, during use, the detection device is immersed in the wastewater, and impurities from the wastewater adhere to the lens of the detection device, which is the detection window, affecting the transmission of light and significantly impacting the accuracy of the detection results. Frequent cleaning is required, and the wastewater detection is interrupted during cleaning, causing detection interruption, reducing detection efficiency, and making it inconvenient to use. Summary of the Invention

[0004] This invention proposes a wastewater suspended particulate concentration detection device to solve the problem in the prior art where the detection device is immersed in the wastewater, and the detection window is easily contaminated, which reduces the accuracy and efficiency of the detection.

[0005] The technical solution of the present invention is as follows: A wastewater suspended particle concentration detection device includes a detector body, the detector body including a detection window, and further including: a dirt-proof shell, the dirt-proof shell being installed on the detector body, the detection window being located inside the dirt-proof shell, and a light-transmitting opening for light to pass through being provided at a position corresponding to the dirt-proof shell and the detection window; a transparent protective plate, the transparent protective plate being movably disposed inside the dirt-proof shell to change the working area located at the light-transmitting opening, the transparent protective plate and the light-transmitting opening being in a sealed sliding fit; and a cleaning roller, the cleaning roller being rotatably disposed inside the dirt-proof shell to wipe the side of the transparent protective plate away from the detector body, the cleaning roller being provided in two sets, the two sets of cleaning rollers being located on both sides of the light-transmitting opening.

[0006] To enable the movement of the transparent protective plate, a drive cavity is provided inside the anti-fouling shell, and a drive screw is rotatably installed inside the drive cavity. The transparent protective plate is fixedly connected to a drive block that is threadedly engaged with the drive screw.

[0007] To enable the cleaning roller to rotate, a cleaning cavity is provided on the anti-fouling housing. The cleaning roller is rotatably disposed inside the cleaning cavity. The cleaning roller is connected to the drive screw via a transmission assembly. The transmission assembly includes: a transmission shaft, with a transmission cavity provided on the anti-fouling housing, the transmission shaft being rotatably disposed inside the transmission cavity, and transmission gears fixedly connected to both the end of the transmission shaft and the end of the drive screw, the two transmission gears meshing with each other; and a drive bevel gear, which is fixedly mounted on the outside of the transmission shaft, the drive bevel gear corresponding one-to-one with the cleaning roller, and a driven bevel gear fixedly connected to one end of the cleaning roller, the driven bevel gear meshing with the drive bevel gear.

[0008] To ensure the humidity of the transparent protective plate and improve the cleaning effect, two water inlets are provided on the anti-fouling shell. The inside of the water inlets is equipped with a filter screen for filtering sewage. A sealing plate for sealing the drive cavity is fixedly connected to the transparent protective plate.

[0009] To ensure the cleaning effect of the cleaning roller, the cleaning chamber is connected to an air supply pipe and an exhaust pipe. The air supply pipe is connected to an external air source through a heating box. A heater is installed inside the heating box. A one-way valve is installed on the exhaust pipe so that the gas in the cleaning chamber can be discharged from the exhaust pipe in one direction.

[0010] To clean the dirt on the filter screen surface, the heating box is fixedly installed on the anti-fouling housing. The heating box is connected to the anti-fouling housing through a heating pipe. A one-way valve is installed on the heating pipe to allow gas in the heating box to enter the anti-fouling housing through the heating pipe.

[0011] The working principle and beneficial effects of this invention are as follows: 1. In this invention, the detection window is protected by a dirt-proof shell and a transparent protective plate. At the same time, the transparent protective plate ensures the transmission of light, enabling the detector body to perform optical detection of the concentration of suspended particles in wastewater. The movement of the transparent protective plate allows it to be positioned at different locations within the light-transmitting area to achieve protection. During the movement of the transparent protective plate, the cleaning roller rotates to wipe and clean the outer surface of the transparent protective plate, preventing dirt from remaining and adhering to the surface of the transparent protective plate for a long time. This ensures the light transmittance of the transparent protective plate in the light-transmitting area, i.e., the detection window position, thus ensuring the accuracy of concentration detection.

[0012] 2. In this invention, the cleaning roller can be driven to rotate by the drive screw. That is, the cleaning roller can be driven to rotate to clean the surface of the transparent protective plate during the movement of the transparent protective plate, thereby realizing the self-cleaning of the detector. Furthermore, the movement of the transparent protective plate moves the cleaned transparent protective plate to the light-transmitting opening, and at the same time moves the transparent protective plate that was originally at the light-transmitting opening into the anti-fouling housing for cleaning, reducing the downtime for cleaning the detection window and realizing continuous monitoring.

[0013] 3. In this invention, wastewater can be filtered through a filter screen. The filtered clean water enters the interior of the anti-fouling shell and comes into contact with the surface of the transparent protective plate, keeping it moist. As the transparent protective plate moves toward the light-transmitting opening, the cleaning roller wipes the moist transparent protective plate, reducing the drying and solidification of dirt, thus making it easier to remove the dirt.

[0014] 4. In this invention, an external air source supplies air into the heating chamber. After the gas is heated by a heater, it is delivered to the interior of the cleaning chamber and the anti-fouling shell through the air supply pipe and the heating pipe. The hot air entering the cleaning chamber dries the cleaning roller and increases the pressure inside the cleaning chamber, so that the dirt and excess moisture inside are discharged with the gas through the exhaust pipe, ensuring the water absorption of the cleaning roller and reducing the dirt residue in the cleaning chamber, thus ensuring the cleaning effect of the cleaning roller.

[0015] 5. In this invention, by moving the transparent protective plate and allowing gas to enter through the heating tube, the pressure on one side of the transparent protective plate moving inside the protective housing increases, thereby causing the water inside to be discharged outward, achieving backflushing of the filter screen, thus washing off the dirt on the surface of the filter screen, reducing the blockage caused by dirt on the filter screen, and ensuring that water enters the interior of the anti-fouling housing to wet the transparent protective plate. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 is a first-view structural schematic diagram of the entire invention; Figure 2 is a second-view structural schematic diagram of the entire invention; Figure 3 is a structural schematic diagram of the anti-fouling shell, transparent protective plate, heating box, and heating tube of the invention; Figure 4 is a structural schematic diagram of the anti-fouling shell, transparent protective plate, drive screw, and drive block of the invention; Figure 5 is a structural schematic diagram of the anti-fouling shell, sealing ring, cleaning roller, and filter screen of the invention; Figure 6 is a structural schematic diagram of the heating box, heater, one-way valve, and heating tube of the invention; Figure 7 is a structural schematic diagram of the transparent protective plate, drive screw, drive block, and transmission assembly of the invention; Figure 8 is a structural schematic diagram of the drive screw, motor, cleaning roller, and transmission assembly of the invention; Figure 9 is a partially enlarged structural schematic diagram of point A in Figure 7 of the invention.

[0018] In the diagram: 1. Detector body; 2. Detection window; 3. Anti-fouling housing; 4. Transparent protective plate; 5. Drive screw; 6. Drive block; 7. Motor; 8. Sealing ring; 9. Cleaning roller; 10. Filter screen; 11. Sealing plate; 12. Sealing strip; 13. Air supply pipe; 14. Exhaust pipe; 15. Heating box; 16. Heater; 17. One-way valve; 18. Heating tube; 101. Drive shaft; 102. Drive bevel gear; 103. Transmission gear; 104. Driven bevel gear. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] As shown in Figures 1 to 9, this embodiment proposes a wastewater suspended particle concentration detection device, including a detector body 1, which includes a detection window 2. The detector body 1 is an immersion sensor that determines the concentration of suspended particles in water by measuring the heat dissipation or absorption of light. It includes a transmitter and a receiver. The transmitter emits light into the interior of the wastewater, and the receiver measures the reflection and absorption of light in the water. The degree of scattering or absorption is related to the concentration of suspended particles in the water, thereby realizing the detection of the concentration of suspended particles in the wastewater. The light received by the receiver enters the interior of the detector body 1 through the detection window 2 and is received by the receiver. Therefore, the cleanliness of the detection window 2 is of great significance for the accuracy of concentration detection. It also includes a dirt-proof shell 3, a transparent protective plate 4, and a cleaning roller 9.

[0021] As shown in Figures 1 and 2, the anti-fouling housing 3 is installed on the detector body 1, and the detection window 2 is located inside the anti-fouling housing 3. The anti-fouling housing 3 and the detection window 2 are respectively provided with light-transmitting openings for light to pass through. The anti-fouling housing 3 is installed at the working end of the detector body 1, that is, at the position of the detection window 2.

[0022] As shown in Figures 1 to 8, the transparent protective plate 4 is movably disposed inside the anti-fouling housing 3 to change the working area located at the light-transmitting opening. The transparent protective plate 4 and the light-transmitting opening are in a sealed sliding fit. To enable the movement of the transparent protective plate 4, a driving cavity is provided inside the anti-fouling housing 3. A driving screw 5 is rotatably disposed inside the driving cavity. A driving block 6, threadedly engaged with the driving screw 5, is fixedly connected to the transparent protective plate 4. A motor 7 is installed inside the driving cavity, and the driving screw 5 is fixedly connected to the output end of the motor 7. The periodic forward and reverse rotation of the motor 7 drives the driving screw 5 to rotate forward or reverse, thereby driving the driving block 6 and the transparent protective plate 4 to reciprocate. A sealing ring 8 is fixedly installed inside the light-transmitting opening. The transparent protective plate 4 is tightly attached to the outer side to ensure the seal between the light-transmitting opening and the transparent protective plate 4, preventing sewage from entering the interior of the anti-fouling housing 3 through the light-transmitting opening and causing pollution. The transparent protective plate 4 can be moved to different positions to the light-transmitting opening position, so that the transparent protective plate 4 at the light-transmitting opening position is in a changing state. This avoids the transparent protective plate 4 from being in contact with external sewage at the same position for a long time, thereby reducing the retention and adhesion of dirt at the same position of the transparent protective plate 4. The area inside the light-transmitting opening of the anti-fouling housing 3 is the working area, and the area outside the light-transmitting opening is the cleaning area. During the movement of the transparent protective plate 4, the transparent protective plate 4 in the working area moves to the cleaning area for cleaning. After cleaning, the transparent protective plate 4 in the cleaning position moves to the working area to protect the detection window.

[0023] As shown in Figures 1 to 9, the cleaning roller 9 is rotatably disposed inside the anti-fouling housing 3 to wipe the side of the transparent protective plate 4 away from the detector body 1. Two sets of cleaning rollers 9 are provided, located on either side of the light-transmitting opening. In this embodiment, each set contains one cleaning roller 9. To enable the rotation of the cleaning roller 9, a cleaning cavity is provided on the anti-fouling housing 3. The cleaning roller 9 is rotatably disposed inside the cleaning cavity. The cleaning roller 9 is connected to the drive screw 5 via a transmission assembly. The transmission assembly includes a transmission shaft 101 and a drive bevel gear 102. The anti-fouling housing 3 has a transmission cavity, and the transmission shaft 101 is rotatably disposed inside the transmission cavity. Transmission gears 103 are fixedly connected to both the end of the transmission shaft 101 and the end of the drive screw 5. The two transmission gears 103 mesh with each other. The drive bevel gear 102 is fixedly mounted on the transmission shaft 101. Outside the shaft 101, the driving bevel gear 102 and the cleaning roller 9 correspond one-to-one. One end of the cleaning roller 9 is fixedly connected to the driven bevel gear 104. The driven bevel gear 104 meshes with the driving bevel gear 102. When the motor 7 drives the driving screw 5 to rotate and move the transparent protective plate 4, the driving screw 5 drives the transmission gear 103 connected to it to rotate, thereby driving another transmission gear 103 and the transmission shaft 101 to rotate. Under the transmission action of the driving bevel gear 102 and the driven bevel gear 104, the transmission shaft 101 drives the cleaning roller 9 to rotate. The cleaning roller 9 is set with an elastic sponge structure on the outside. The cleaning roller 9 and the transparent protective plate 4 are close to the end away from the detector body 1, that is, the end that is in contact with sewage. When the transparent protective plate 4 moves, the cleaning roller 9 is also in a rotating state, so that different positions of the cleaning roller 9 contact the transparent protective plate 4, that is, the cleaning roller 9 is cleaned at different positions, improving the utilization rate of the cleaning roller 9.

[0024] As shown in Figures 1 to 5, to ensure the humidity of the transparent protective plate 4 and improve the cleaning effect, two water inlets are provided on the anti-fouling housing 3. The inside of each water inlet is equipped with a filter screen 10 for filtering wastewater. A sealing plate 11 for sealing the drive cavity is fixedly connected to the transparent protective plate 4. The two water inlets are located at two cleaning areas of the protective housing. The filter screen 10 filters out impurities in the wastewater, allowing the filtered clean water to enter the cleaning area of ​​the anti-fouling housing 3. The inner walls of the transparent protective plate 4 and the anti-fouling housing 3 near the detector body 1 are in a sealed sliding fit. There is a certain gap between the inner walls of the transparent protective plate 4 and the anti-fouling housing 3 away from the detector body 1, allowing clean water to enter through the water inlets and wet the transparent protective plate 4, preventing impurities from drying on the transparent protective plate 4 and increasing the difficulty of cleaning. A sealing plate 11 is fixedly connected to the side of the cleaning cavity away from the light-transmitting opening. The sealing strip 12 and the sealing ring 8 keep the cleaning chamber in a relatively sealed state, thereby preventing sewage and clean water from entering the interior of the cleaning chamber and causing the cleaning roller 9 to become excessively wet, thus reducing its water absorption. During the movement of the transparent protective plate 4, the sealing strip 12 and the sealing ring 8 play a role in blocking and scraping the dirt on its surface. The cleaning roller 9 further wipes the moisture and dirt on the surface of the transparent protective plate 4, improving the cleaning effect of the transparent protective plate 4. The sealing plate 11 and the inner wall of the anti-fouling housing 3 are tightly attached. During the movement of the transparent protective plate 4, the sealing plate 11 and the transparent protective plate 4 work together to seal the drive chamber, preventing water from entering the interior of the drive chamber and causing the drive screw 5 to rust or be damaged. The anti-fouling housing 3 has a sealing hole that matches the sealing plate 11. When the transparent protective plate 4 moves, the sealing plate 11 is always located inside the sealing hole to seal it, preventing the entry of external sewage.

[0025] As shown in Figures 1 to 6, to ensure the cleaning effect of the cleaning roller 9, the cleaning chamber is connected to an air supply pipe 13 and an exhaust pipe 14. The air supply pipe 13 is connected to an external air source through a heating box 15. A heater 16 is installed inside the heating box 15. A one-way valve 17 is provided on the exhaust pipe 14 to allow the gas in the cleaning chamber to be discharged unidirectionally from the exhaust pipe 14. To clean the dirt on the surface of the filter screen 10, the heating box 15 is fixedly mounted on the anti-fouling housing 3. The heating box 15 is connected to the anti-fouling housing 3 through a heating pipe 18. A one-way valve 17 is provided on the heating pipe 18 to allow the gas in the heating box 15 to enter the anti-fouling housing 3 through the heating pipe 18. An external air source supplies air into the heating box 15, and the heater 16 heats the gas inside the heating box 15. Hot air enters the cleaning chamber through the heating pipe to dry the cleaning roller 9. At the same time, the pressure inside the cleaning chamber increases, causing the dirt cleaned inside to be blown out into the external sewage through the exhaust pipe 14, ensuring the cleaning effect of the cleaning roller 9. Some of the hot air enters the cleaning area of ​​the anti-fouling shell 3 through the heating pipe 18, causing bubbles to form in the water within the cleaning area of ​​the anti-fouling shell 3. The bubbles are discharged through the water inlet. During the process of bubble discharge, dirt on the surface of the filter screen 10 can be washed off, thereby reducing the clogging caused by dirt on the filter screen 10. Furthermore, during the movement of the transparent protective plate 4, the pressure in the direction of movement of the transparent protective plate 4 increases, causing the water inside the anti-fouling shell 3 to flow outward, further rinsing the dirt on the filter screen 10. The bubbling of the bubbles also causes the water in the cleaning area to flow, achieving the effect of rinsing and cleaning the surface of the transparent protective plate 4.

[0026] The working principle or usage process of this wastewater suspended particle concentration detection device is as follows: The device is placed in wastewater. The transmitter emits light, and the receiver measures the reflection and absorption of the light in the water to detect the suspended particle concentration. During this process, a transparent protective plate 4 protects the detection window. The operating frequency of the motor 7 is set according to the suspended particle concentration of the wastewater. The motor 7 drives the drive screw 5 to rotate forward and backward, thereby causing the transparent protective plate 4 to reciprocate within the anti-fouling housing 3, moving it to different positions within the working area to protect the detection window. During the movement of the transparent protective plate 4, the sealing ring 8 and the cleaning roller 9 scrape off the dirt on its surface. Simultaneously, under the transmission action of the transmission components, the cleaning roller... Roller 9 rotates, further improving the cleaning effect on the transparent protective plate 4; wastewater enters the cleaning area of ​​the anti-fouling shell 3 through the inlet, and filter screen 10 filters the wastewater to allow clean water to enter. The clean water soaks the outer surface of the transparent protective plate 4, thereby reducing the adhesion of dirt on its surface. An external air source sends air into the heating box 15, and heater 16 heats the incoming air. The hot air enters the cleaning chamber and the interior of the anti-fouling shell 3 to dry the cleaning roller 9. The moisture generated during drying and some of the dirt generated during cleaning are discharged with the air through the exhaust pipe 14. The air sent into the anti-fouling shell 3 by the heating pipe 18 creates bubbles inside the anti-fouling shell 3, causing the water to tumble, which can clean the transparent protective plate 4 and the filter screen 10.

[0027] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wastewater suspended particulate concentration detection device, comprising a detector body (1), wherein the detector body (1) includes a detection window (2), characterized in that, Also includes: A dirt-proof housing (3) is installed on the detector body (1). The detection window (2) is located inside the dirt-proof housing (3). Light-transmitting openings for light to pass through are provided at corresponding positions of the dirt-proof housing (3) and the detection window (2). A transparent protective plate (4) is movably disposed inside the dirt-proof housing (3) to replace the working area located at the light-transmitting opening. The transparent protective plate (4) and the light-transmitting opening are in a sealed sliding fit. A cleaning roller (9) is rotatably disposed inside the dirt-proof housing (3) to wipe the side of the transparent protective plate (4) away from the detector body (1). Two sets of cleaning rollers (9) are provided, and the two sets of cleaning rollers (9) are located on both sides of the light-transmitting opening.

2. The wastewater suspended particulate concentration detection device according to claim 1, characterized in that, The anti-fouling shell (3) has a drive cavity inside, and a drive screw (5) is rotatably installed inside the drive cavity. The transparent protective plate (4) is fixedly connected to a drive block (6) that is threadedly engaged with the drive screw (5).

3. The wastewater suspended particulate concentration detection device according to claim 2, characterized in that, The anti-fouling housing (3) is provided with a cleaning chamber, and the cleaning roller (9) is rotatably disposed inside the cleaning chamber. The cleaning roller (9) is connected to the drive screw (5) through a transmission assembly.

4. The wastewater suspended particulate concentration detection device according to claim 3, characterized in that, The transmission assembly includes: a transmission shaft (101), a transmission cavity provided on the anti-fouling housing (3), the transmission shaft (101) being rotatably disposed inside the transmission cavity, and transmission gears (103) being fixedly connected to both the end of the transmission shaft (101) and the end of the drive screw (5), with the two transmission gears (103) meshing with each other; and a drive bevel gear (102), the drive bevel gear (102) being fixedly fitted outside the transmission shaft (101), the drive bevel gear (102) and the cleaning roller (9) corresponding one-to-one, and a driven bevel gear (104) being fixedly connected to one end of the cleaning roller (9), with the driven bevel gear (104) meshing with the drive bevel gear (102).

5. The wastewater suspended particulate concentration detection device according to claim 4, characterized in that, The anti-fouling housing (3) has two water inlets, and the inside of the water inlets is equipped with a filter screen (10) for filtering sewage. The transparent protective plate (4) is fixedly connected with a sealing plate (11) for sealing the drive cavity.

6. The wastewater suspended particulate concentration detection device according to claim 5, characterized in that, The cleaning chamber is connected to a gas supply pipe (13) and an exhaust pipe (14). The gas supply pipe (13) is connected to an external gas source through a heating box (15). A heater (16) is installed inside the heating box (15). A one-way valve (17) is provided on the exhaust pipe (14) so ​​that the gas in the cleaning chamber can be discharged unidirectionally from the exhaust pipe (14).

7. The wastewater suspended particulate concentration detection device according to claim 6, characterized in that, The heating box (15) is fixedly installed on the anti-fouling shell (3). The heating box (15) is connected to the anti-fouling shell (3) through the heating pipe (18). A one-way valve (17) is provided on the heating pipe (18) so that the gas in the heating box (15) can enter the anti-fouling shell (3) through the heating pipe (18).

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